Bracket, support system, and thrombelastography device and use method thereof

1. A bracket, comprising: a first support part, a second support part, and a connection part, wherein

the first support part supports the second support part by means of the connection part, so that the second support part can rotate relative to the first support part under a first action force;

the first support part comprises:

a rotatable structure, a support base, and a stop mechanism, wherein

the stop mechanism is used for applying a stop force to the rotation of the rotatable structure, wherein

the rotatable structure is supported on the support base and can rotate relative to the support base under a second action force when the stop force of the stop mechanism is eliminated,

the rotatable structure comprises a first support member and a bridge structure, wherein

the first support member is supported on the support base and can rotate relative to the support base under the second action force when the stop force of the stop mechanism is eliminated,

the bridge structure is supported on the first support member and fixedly connected to the first support member, such that the bridge structure rotates when the first support member rotates; and

the bridge structure supports the second support part by means of the connection part, such that the bridge structure rotates relative to the second support part when the first support member rotates, and

the rotatable structure supports the second support part by means of the connection part, so that the rotatable structure can rotate relative to the second support part while rotating relative to the support base;

wherein the center of the first support member is provided with a first through-hole, and the bridge structure is fixed to the first support member across the first through-hole;

the center of the support base is provided with a second through-hole which is at least partially overlapped with the first through-hole;

the center of the second support part is provided with a third through-hole; and

the second support part passes through the first through-hole and the second through-hole when being supported by the first support part, and the bridge structure passes through the third through-hole and supports the second support part by means of the connection part located in the third through-hole.

2. The bracket according to claim 1 , wherein the stop mechanism is selected from one of the followings or any combination thereof:

a fixing member for fixing the rotatable structure relative to the support base;

surfaces, which are in contact with each other and have predetermined roughness, of the rotatable structure and the support base; or

a material, which provides an eliminable viscous force, between the contact surfaces of the rotatable structure and the support base.

3. The bracket according to claim 1 , wherein

the connection part comprises a first connection part and a second connection part;

the first connection part is fixedly connected to the bridge structure, and the second connection part is fixedly connected to the second support part; and

the first connection part and the second connection part are connected together in a form of point contact, such that the first connection part can rotate relative to the second connection part, and further the second support part can rotate relative to the bridge structure.

4. The bracket according to claim 3 , wherein

the first connection part is a jewel bearing, and the second connection part is a top cone;

or

the first connection part is a top cone, and the second connection part is a jewel bearing; wherein

the jewel bearing is provided with a tapered groove, the top cone is of a tapered structure, the tip of the top cone is located in the tapered groove in the jewel bearing, and the top cone is connected to the jewel bearing in a form of point contact.

5. The bracket according to claim 1 , wherein

the first support member comprises a support surface and a cylindrical extension part which is located under the support surface and fixedly connected to the support surface; and

the top surface, which is in contact with the first support member, of the support base is provided with a groove which is matched with the cylindrical extension part, such that the cylindrical extension part can be accommodated in the groove and supported by the groove, and can rotate in the groove.

6. The bracket according to claim 1 , wherein

the first support member comprises a support surface and a cylindrical extension part which is located under the support surface and fixedly connected to the support surface, wherein the support surface extends beyond an upper surface of the cylindrical extension part, such that the support surface protrudes from the side surface of the cylindrical extension part; and

wherein the support part comprises a top surface, which is in contact with the first support member, and is provided with a groove which is matched with the cylindrical extension part, such that the cylindrical extension part can be accommodated in the groove, the support surface is supported by the top surface, and further the cylindrical extension part can rotate in the groove.

7. The bracket according to claim 1 , further comprising at least a pair of magnets; wherein for each pair of magnets, the first magnet is fixed to one side, close to the second support part, on the first support part, and the second magnet is fixed to one side, close to the first support part, on the second support part; and the first magnet and the second magnet are stacked in parallel, and two surfaces that are close each other have like magnetic poles.

8. A thrombelastography device, comprising the bracket according to claim 1 and a rotary shaft, wherein the lower end of the second support part and one end of the rotary shaft are connected to support the rotary shaft, such that the rotary shaft can rotate under an external driving force.

9. The thrombelastography device according to claim 8 , further comprising a measurement device which is used for measuring a rotation angle of the rotary shaft, and forming a thrombelastogram corresponding to measured blood according to the rotation angle of the rotary shaft.

10. The thrombelastography device according to claim 9 , wherein

the measurement device comprises a reflective sheet, a light emitting module, a light receiving module and a processing module; wherein

the rotary shaft is fixedly connected to the reflective sheet and drives the reflective sheet to rotate under an external driving force;

the light emitting module is used for emitting light to the reflective sheet in a fixed direction;

the reflective sheet is used for receiving light emitted by the light emitting module and reflecting the received light;

the light receiving module is used for receiving light reflected by the reflective sheet in a fixed direction, converting the received light into a corresponding electrical signal according to the intensity of the light, and transmitting the electrical signal to the processing module; and

the processing module is used for processing the electrical signal converted by the light receiving module to determine the rotation angle of the rotary shaft.

11. The thrombelastography device according to claim 10 , wherein

the light emitting module comprises a light guide column and at least one of:

a light emitting diode, wherein the light emitting diode emits light to the reflective sheet through the light guide column; or

a photocell, wherein the photocell receives light reflected by the reflective sheet through the light guide column.

12. A use method for the thrombelastography device according to claim 8 , comprising:

eliminating a stop force of the stop mechanism in response to the first support part being offset from the second support part by a predetermined position;

rotating the first support member by applying the second action force to the first support member, such that the bridge structure rotates relative to the second support part to a position that forms a predetermined angle with the second support part;

inserting the lower end of the rotary shaft to measured blood;

rotating the measured blood to drive the rotary shaft to rotate; and

calculating blood coagulation data of the measured blood based on the measured rotation angle of the rotary shaft.

13. A support system, comprising the bracket according to claim 1 , and a supported object, wherein the lower end of the second support part and one end of the supported object are connected to support the supported object, such that the supported object can rotate under an external driving force.

14. The support system of claim 13 , wherein the stop mechanism is selected from one of the followings or any combination thereof:

a fixing member for fixing the rotatable structure relative to the support base;

surfaces, which are in contact with each other and have predetermined roughness, of the rotatable structure and the support base; or

a material, which provides an eliminable viscous force, between the contact surfaces of the rotatable structure and the support base.

15. The support system of claim 13 , wherein

the connection part comprises a first connection part and a second connection part;

the first connection part is fixedly connected to the bridge structure, and the second connection part is fixedly connected to the second support part; and

the first connection part and the second connection part are connected together in a form of point contact, such that the first connection part can rotate relative to the second connection part, and further the second support part can rotate relative to the bridge structure.

16. The support system of claim 13 , wherein

the first support member comprises a support surface and a cylindrical extension part which is located under the support surface and fixedly connected to the support surface, wherein the support surface extends beyond an upper surface of the cylindrical extension part, such that the support surface protrudes from the side surface of the cylindrical extension part; and

wherein the support base comprises a top surface, which is in contact with the first support member, and is provided with a groove which is matched with the cylindrical extension part, such that the cylindrical extension part can be accommodated in the groove, the support surface is supported by the top surface, and further the cylindrical extension part can rotate in the groove.

17. The support system of claim 13 , wherein the bracket further comprises at least a pair of magnets; wherein

for each pair of magnets, the first magnet is fixed to one side, close to the second support part, on the first support part, and the second magnet is fixed to one side, close to the first support part, on the second support part; and

the first magnet and the second magnet are stacked in parallel, and two surfaces that are close each other have like magnetic poles.

18. The bracket according to claim 1 , wherein

the first support member comprises a support surface and a cylindrical extension part which is located under the support surface and fixedly connected to the support surface; and

the top surface, which is in contact with the first support member, of the support base is provided with a groove which is matched with the cylindrical extension part, such that the cylindrical extension part can be accommodated in the groove and supported by the groove, and can rotate in the groove.