Connecting rod folding mechanism and cot having same
Provided are a connecting rod folding mechanism and a cot having the same. The connecting rod folding mechanism includes: an upper surrounding joint connecting rod folding mechanism and an corner connecting rod folding mechanism; the corner connecting rod folding mechanism includes an upper connecting rod, a lower connecting rod and a pull-cord rod; the lower connecting rod is connected with the pull-cord rod; the upper connecting rod is connected with an upper surrounding tube; the upper connecting rod is movably connected with the lower connecting rod; the lower connecting rod is arranged in the pull-cord rod; the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with a pulling mechanism; the pulling mechanism is arranged in a vertical column; and one end of the vertical column is connected to the corner connecting rod folding mechanism.
1. A connecting rod folding mechanism, comprising:
an upper surrounding joint connecting rod folding mechanism, comprising a joint base and a pulling cord; an upper surrounding tube is connected at circular holes on both sides of the joint base;
an corner connecting rod folding mechanism, comprising a corner base, an upper connecting rod, a lower connecting rod and a pull-cord rod; the lower connecting rod is connected with the corner base through a pivot; the upper surrounding tube is connected with the corner base through the pivot; the corner base is fixed to a vertical column; one end of the upper connecting rod is connected with the upper surrounding tube; the other end of the upper connecting rod is movably connected with one end of the lower connecting rod; and the other end of the lower connecting rod is connected with a pulling mechanism; the lower connecting rod penetrates through the pull-cord rod; one end of the pull-cord rod is connected with the corner base through a pivot; the other end of the pull-cord rod is connected with one end of the pulling cord; and the other end of the pulling cord is connected to the upper surrounding joint connecting rod folding mechanism; and
a base connecting rod folding mechanism, connected with the vertical column and the pulling mechanism.
2. The connecting rod folding mechanism of claim 1 , wherein the base connecting rod folding mechanism comprises a pulling connecting rod; one end of the pulling connecting rod is connected with a parallel connecting rod; the other end of the pulling connecting rod is connected with the pulling mechanism; and the vertical column is fixed to the base connecting rod folding mechanism.
3. The connecting rod folding mechanism of claim 1 , wherein a positioning block is arranged in the joint base and is located on an adjacent connecting end of the upper surrounding tube.
4. The connecting rod folding mechanism of claim 1 , wherein a joint pin is arranged on one end, connected with the joint base, of the upper surrounding tube; the joint pin is arranged in the upper surrounding tube; a compression spring is arranged in the joint pin; and the other end of the pulling cord is connected to the joint pin in the upper surrounding joint connecting rod folding mechanism.
5. The connecting rod folding mechanism of claim 1 , wherein the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with the pulling mechanism; the engaging structure is a fan-shaped boss with a groove; the lower connecting rod is provided with a cylindrical pin; and the cylindrical pin is embedded into the groove.
6. A cot having a connecting rod folding mechanism, comprising: an upper surrounding joint connecting rod folding mechanism, an corner connecting rod folding mechanism, a base connecting rod folding mechanism and a central joint; the upper surrounding joint connecting rod folding mechanism is connected with the corner connecting rod folding mechanism; the corner connecting rod folding mechanism is connected with the base connecting rod folding mechanism; and the central joint is connected with the base connecting rod folding mechanism; wherein
the upper surrounding joint connecting rod folding mechanism comprises a joint base and a pulling cord; an upper surrounding tube is connected at circular holes on both sides of the joint base;
the corner connecting rod folding mechanism comprises a corner base, an upper connecting rod and a lower connecting rod; the lower connecting rod is connected with the corner base through a pivot; the upper surrounding tube is connected with the corner base through the pivot; the corner base is fixed to a vertical; column; one end of the upper connecting rod is connected with the upper surrounding tube; the other end of the upper connecting rod is movably connected with one end of the lower connecting rod; and the other end of the lower connecting rod is connected with a pulling mechanism; the lower connecting rod penetrates through a pull-cord rod; one end of the pull-cord rod is connected with the corner base through a pivot; the other end of the pull-cord rod is connected with one end of the pulling cord; and the other end of the pulling cord is connected to the upper surrounding joint connecting rod folding mechanism; and
the base connecting rod folding mechanism is connected with the vertical column and the pulling mechanism.
7. The cot having the connecting rod folding mechanism of claim 6 , wherein the upper surrounding joint connecting rod folding mechanism comprises a joint base; an upper surrounding tube is connected at circular holes on both sides of the joint base; the corner connecting rod folding mechanism comprises a corner base, an upper connecting rod and a lower connecting rod; the lower connecting rod is connected with the corner base through a pivot; the upper surrounding tube is connected with the corner base through the pivot; the corner base is fixed to a vertical column; one end of the upper connecting rod is connected with the upper surrounding tube; the other end of the upper connecting rod is movably connected with one end of the lower connecting rod; the other end of the lower connecting rod is connected with the pulling mechanism; and the base connecting rod folding mechanism is connected with the vertical column and the pulling mechanism.
8. The cot having the connecting rod folding mechanism of claim 6 , wherein the corner connecting rod folding mechanism further comprises a pull-cord rod; the base connecting rod folding mechanism comprises a pulling connecting rod; one end of the pulling connecting rod is connected with a parallel connecting rod; the other end of the pulling connecting rod is connected with the pulling mechanism; the vertical column is fixed to the base connecting rod folding mechanism; the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with the pulling mechanism; the engaging structure is a fan-shaped boss with a groove; the lower connecting rod is provided with a cylindrical pin; and the cylindrical pin is embedded into the groove.
9. The cot having the connecting rod folding mechanism of claim 8 , wherein an upper surrounding joint connecting rod folding mechanism is arranged on each edge formed by the corner connecting rod folding mechanism in the cot, and the central joint is connected with the corner connecting rod folding mechanism through the base connecting rod folding mechanism.
10. The connecting rod folding mechanism of claim 2 , wherein the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with the pulling mechanism; the engaging structure is a fan-shaped boss with a groove; the lower connecting rod is provided with a cylindrical pin; and the cylindrical pin is embedded into the groove.
11. The connecting rod folding mechanism of claim 3 , wherein the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with the pulling mechanism; the engaging structure is a fan-shaped boss with a groove; the lower connecting rod is provided with a cylindrical pin; and the cylindrical pin is embedded into the groove.
12. The connecting rod folding mechanism of claim 4 , wherein the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with the pulling mechanism; the engaging structure is a fan-shaped boss with a groove; the lower connecting rod is provided with a cylindrical pin; and the cylindrical pin is embedded into the groove.
13. The cot having the connecting rod folding mechanism of claim 7 , wherein the upper surrounding joint connecting rod folding mechanism further comprises a pulling cord; the corner connecting rod folding mechanism further comprises a pull-cord rod; the lower connecting rod penetrates through the pull-cord rod; one end of the pull-cord rod is connected with the corner base through a pivot; the other end of the pull-cord rod is connected with one end of the pulling cord; the other end of the pulling cord is connected to the upper surrounding joint connecting rod folding mechanism; the base connecting rod folding mechanism comprises a pulling connecting rod; one end of the pulling connecting rod is connected with a parallel connecting rod; the other end of the pulling connecting rod is connected with the pulling mechanism; the vertical column is fixed to the base connecting rod folding mechanism; the pull-cord rod is provided with an engaging structure; the lower connecting rod penetrates through the engaging structure and is connected with the pulling mechanism; the engaging structure is a fan-shaped boss with a groove; the lower connecting rod is provided with a cylindrical pin; and the cylindrical pin is embedded into the groove.
14. The cot having the connecting rod folding mechanism of claim 13 ,
wherein an upper surrounding joint connecting rod folding mechanism is arranged on each edge formed by the corner connecting rod folding mechanism in the cot, and the central joint is connected with the corner connecting rod folding mechanism through the base connecting rod folding mechanism.