Reading head protection apparatus and information reading device
The disclosure relates to the technical field of information reading devices, and provides a reading head protection apparatus and an information reading device. The reading head protection apparatus includes: a protective jacket including a reading head connection end and a chip connection end connected to the reading head connection end, the reading head connection end being configured to connect to a reading head, and the chip connection end being configured to connect to a chip carrier, wherein a first mounting cavity is arranged in the reading head connection end, a second mounting cavity is arranged in the chip connection end, and the second mounting cavity is communicated with the first mounting cavity. The technical solutions of the present application can achieve stable and reliable adhesion between the reading head and the chip, so as to improve the efficiency of the reading head in reading the stored information in the chip.
1. A reading head protection apparatus, comprising:
a protective jacket comprising a reading head connection end and a chip connection end connected to the reading head connection end, the reading head connection end being configured to connect to a reading head, and the chip connection end being configured to connect to a chip carrier,
wherein a first mounting cavity is arranged in the reading head connection end, a second mounting cavity is arranged in the chip connection end, and the second mounting cavity is communicated with the first mounting cavity.
2. The reading head protection apparatus according to claim 1 , wherein the reading head connection end comprises a first connecting sleeve, the first mounting cavity is formed in the first connecting sleeve, and a connecting portion is arranged in the first mounting cavity and configured to connect to the reading head.
3. The reading head protection apparatus according to claim 2 , wherein the connecting portion comprises an internal thread configured to threadedly connect to the reading head.
4. The reading head protection apparatus according to claim 1 , wherein the chip connection end comprises a second connecting sleeve, the second mounting cavity is formed in the second connecting sleeve and configured to have an interference fit to the chip carrier.
5. The reading head protection apparatus according to claim 4 , wherein the second connecting sleeve and the first connecting sleeve are coaxially arranged.
6. The reading head protection apparatus according to claim 4 , wherein an inner diameter of the second connecting sleeve is greater than an inner diameter of the first connecting sleeve; and
a step portion is formed at an end of the second mounting cavity connected to the first mounting cavity, the step portion has a stopper surface configured to abut against the chip carrier.
7. The reading head protection apparatus according to claim 6 , further comprising a sealing member arranged on the stopper surface, the sealing member is provided with a communication hole allowing the reading head to pass through.
8. The reading head protection apparatus according to claim 1 , wherein an anti-corrosion coating is arranged on a surface of the protective jacket.
9. An information reading device, comprising:
a reading head protection apparatus according to claim 1 ;
the reading head having a reading end;
a chip carrier embedded with a chip;
wherein the chip carrier has an interference fit to the second mounting cavity, the reading head is threadedly connected to the first mounting cavity, and the reading end is configured to be in contact connection with the chip.
10. The information reading device according to claim 9 , wherein the reading head is further provided with a stopper portion spaced apart from the reading end, an end of the protective jacket away from the chip carrier is provided with a position-limit groove, and the stopper portion is configured to be located in the position-limit groove when the end of the reading head is in contact with the chip.