A high reliability retractable adapter

Abstract

The utility model discloses a high-reliability retractable adapter, which aims to solve the problem that the existing retractable adapter shell is generally connected by an elastic hook contact method, which is very easy to tilt during the relative movement, and there is a risk of the elastic hook being disengaged, causing the connection failure, and the reliability is low. The adapter includes a first connector and a second connector, the first connector and the second connector are plug-connected, the left side of the second connector is fixedly connected to the connecting sleeve by a thread, and the first connector and the connecting sleeve are connected by an elastic hook. The utility model adds a guide sleeve and a connecting sleeve on the basis of the original elastic hook connection, thereby avoiding the tilting of the first shell when moving in the free space, ensuring the coaxiality of the product, and limiting the moving distance of the first shell by the limit step of the guide sleeve, thereby avoiding the risk of connection failure caused by the elastic hook being disengaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of adapters, and in particular relates to a high-reliability retractable adapter. Background Art

[0002] With the development of miniaturization, integration and modularization of the whole system, it is often necessary to plug multiple small connectors together. Since there is a cumulative tolerance between the length of the adapter and the distance between the panel, the adapter and its matching connector may not be properly plugged in. In this case, a telescopic adapter with a length varying within a certain range has gradually emerged.

[0003] Although the existing retractable adapters have solved the problem of improper insertion, since the shells of the connectors at both ends generally use elastic hooks for contact, they are prone to tilting during the relative movement of the connectors at both ends of the adapter. This tilt will not only increase the insertion force, but also cause degradation of the RF electrical performance. When the tilt reaches a certain degree, it will even cause damage to the inner and outer conductors of the adapter, affecting the signal transmission of the entire device. In addition, during the relative movement of the connectors at both ends of the adapter, there is a risk that the elastic hooks will be disengaged and cause connection failure, and the reliability is low. In this context, there is an urgent need for a retractable adapter with high reliability. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a highly reliable retractable adapter, which aims to solve the problem that the existing retractable adapter shell is generally connected by elastic hook contact, which is very easy to tilt during relative movement and may even cause damage to the inner and outer conductors of the adapter. At the same time, there is a risk of the elastic hook detaching and causing connection failure, resulting in low reliability.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides such a high-reliability retractable adapter, which includes a first connector and a second connector, the first connector and the second connector are plug-connected, the left side of the second connector is fixedly connected to the connecting sleeve by a thread, and the first connector and the connecting sleeve are connected by an elastic hook;

[0008] A guide sleeve, which is sleeved on the outer surface of the connecting sleeve, wherein the left end of the guide sleeve is slidably connected to the first connector, and the right end of the guide sleeve is fixedly connected to the connecting sleeve;

[0009] A spring, a cavity is formed between the first connector, the connecting sleeve and the guide sleeve, and the spring is arranged inside the cavity.

[0010] Preferably, the first connector includes a first conductor, a first insulator and a first shell which are fixedly connected in sequence from the inside to the outside, and the second connector includes a second conductor, a second insulator and a second shell which are fixedly connected in sequence from the inside to the outside, and the right end of the first conductor is plug-connected with the left end of the second conductor.

[0011] Furthermore, the right end of the first conductor is a pin structure, and the left end of the second conductor is an elastic socket structure, and the pin structure is used to move in the elastic socket structure and maintain elastic contact.

[0012] Furthermore, the first conductor, the first insulator and the first shell are each provided with a first through hole, a first potting glue is arranged in the first through hole to fix the first conductor, the first insulator and the first shell together, and the second conductor, the second insulator and the second shell are each provided with a second through hole, a second potting glue is arranged in the second through hole to fix the second conductor, the second insulator and the second shell together.

[0013] Furthermore, the connecting sleeve includes a guide cylinder and a connecting cylinder connected in sequence, the diameter of the connecting cylinder is larger than the diameter of the guide cylinder and a boss is formed at the connection, the cavity is enclosed by the boss, the guide cylinder and the guide sleeve, and the spring sleeve is arranged on the outer surface of the guide cylinder.

[0014] Furthermore, a first limiting step is fixedly connected to the right outer surface of the first shell, the first limiting step contacts the inner wall of the guide sleeve, and a second limiting step corresponding to the first limiting step is fixedly connected to the left inner wall of the guide sleeve.

[0015] Furthermore, the elastic hook includes an elastic rod with multiple split grooves fixedly connected to the middle of the right side of the first shell, and the right end of the elastic rod is fixedly connected to a contact block, which is used to slide on the inner wall of the guide cylinder and maintain elastic contact.

[0016] Furthermore, the inner wall of the connecting tube is provided with an internal thread, the left side of the second shell is provided with a boss and an external thread, and a thread fastening glue is applied between the internal thread and the external thread to ensure the reliability of the threaded connection.

[0017] Furthermore, outer surfaces of the first shell and the second shell are both provided with stabilizing rings.

[0018] Furthermore, welding holes are provided on the right side of the guide sleeve and the connecting tube, and solder is provided in the welding holes for fixedly connecting the guide sleeve and the connecting tube.

[0019] Beneficial Effects

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model adds a guide sleeve and a connecting sleeve on the basis of the original elastic hook connection, so that the first shell moves in the inner hole of the guide sleeve, avoiding the tilting of the first shell when moving in the free space, ensuring the coaxiality of the product, thereby ensuring the radio frequency electrical performance, and making the insertion force softer. The moving distance of the first shell is limited by the limiting step of the guide sleeve, thereby avoiding the risk of connection failure caused by the disengagement of the elastic hook. At the same time, the first connector and the second connector are connected by threads, which is convenient for disassembly of the adapter when the test fails, and for adjusting the performance of the adapter, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a half-section structure of the utility model in a compressed state.

[0023] Figure 2 It is a schematic diagram of the full cross-section structure of the utility model in a compressed state.

[0024] Figure 3 It is a schematic cross-sectional structure diagram of the first connector of the utility model.

[0025] Figure 4 It is a schematic cross-sectional structure diagram of the second connector of the utility model.

[0026] Figure 5 It is a schematic diagram of a half-section structure of the utility model in a free state.

[0027] The marks in the accompanying drawings are: 1, first connector; 2, second connector; 3, connecting sleeve; 4, guide sleeve; 5, spring; 6, cavity; 7, thread glue; 8, stabilizing ring; 9, solder; 101, first conductor; 102, first insulator; 103, first shell; 104, first potting glue; 201, second conductor; 202, second insulator; 203, second shell; 204, second potting glue; 301, guide cylinder; 302, connecting cylinder; 303, boss; 401, second limiting step; 1031, first limiting step; 1032, elastic rod; 1033, contact block; 2031, boss. DETAILED DESCRIPTION

[0028] This specific implementation is a high reliability retractable adapter, and its structural diagram is as shown in Figure 1-Figure 5As shown, the adapter includes a first connector 1, a second connector 2, a guide sleeve 4 and a spring 5. The first connector 1 and the second connector 2 are plug-connected, the left side of the second connector 2 is fixedly connected to the connecting sleeve 3 by a thread, and the first connector 1 and the connecting sleeve 3 are connected by an elastic hook; the guide sleeve 4 is sleeved on the outer surface of the connecting sleeve 3, the left end of the guide sleeve 4 is slidably connected to the first connector 1, and the right end of the guide sleeve 4 is fixedly connected to the connecting sleeve 3; a cavity 6 is formed between the first connector 1, the connecting sleeve 3 and the guide sleeve 4, and the spring 5 is arranged inside the cavity 6.

[0029] like Figure 4 and Figure 5 As shown: In this embodiment, the first connector 1 includes a first conductor 101, a first insulator 102 and a first shell 103 which are fixedly connected in sequence from the inside to the outside, and the second connector 2 includes a second conductor 201, a second insulator 202 and a second shell 203 which are fixedly connected in sequence from the inside to the outside. The right end of the first conductor 101 is plug-connected with the left end of the second conductor 201. The right end of the first conductor 101 is a pin structure, and the left end of the second conductor 201 is an elastic socket structure. The pin structure is used to move in the elastic socket structure and maintain elastic contact.

[0030] In this way, the first conductor 101 is arranged as an inner conductor so that it can slide on the left side of the second conductor 201, and electrical connection is achieved while sliding, while maintaining close contact between the first conductor 101 and the second conductor 201.

[0031] like Figure 1 and Figure 2 As shown: In this embodiment, a first through hole is formed on the first conductor 101, the first insulator 102 and the first shell 103, and a first potting glue 104 is arranged in the first through hole to fix the first conductor 101, the first insulator 102 and the first shell 103 together; a second through hole is formed on the second conductor 201, the second insulator 202 and the second shell 203, and a second potting glue 204 is arranged in the second through hole to fix the second conductor 201, the second insulator 202 and the second shell 203 together.

[0032] In this arrangement, the first conductor 101, the first insulator 102 and the first shell 103 are fixedly connected together by the first potting glue 104, and the second conductor 201, the second insulator 202 and the second shell 203 are fixedly connected together by the second potting glue 204 to avoid looseness.

[0033] like Figure 3 and Figure 4As shown: In this embodiment, the connecting sleeve 3 includes a guide cylinder 301 and a connecting cylinder 302 connected in sequence, the diameter of the connecting cylinder 302 is larger than the diameter of the guide cylinder 301 and a boss 303 is formed at the connection, the cavity 6 is surrounded by the boss 303, the guide cylinder 301 and the guide sleeve 4, and the spring 5 is sleeved on the outer surface of the guide cylinder 301.

[0034] In this way, one end of the spring 5 is in contact with the boss 303, and the other end of the spring 5 is in contact with the first shell 103. When the length of the adapter in the free state is greater than the adaptation distance between the mounting plates, the first connector 1 will move with its mounting plate until the specified distance between the plates is reached. During this process, the first shell 103 is subjected to force to compress the spring 5 and move to the right along the guide sleeve 4.

[0035] like Figure 3 and Figure 4 As shown: In this embodiment, the right outer surface of the first shell 103 is fixedly connected with a first limiting step 1031, the first limiting step 1031 contacts the inner wall of the guide sleeve 4, and the left inner wall of the guide sleeve 4 is fixedly connected with a second limiting step 401 corresponding to the first limiting step 1031.

[0036] In this way, the left end of the first shell 103 is set as a contact head for plugging with the matching connector, and the middle is an outer circle with a first limiting step 1031. The first limiting step 1031 slides in the guide sleeve 4 and can be matched with the second limiting step 401 on the guide sleeve 4 for limiting during movement, thereby avoiding the risk of connection failure caused by disengagement.

[0037] like Figure 1 and Figure 3 As shown: In this embodiment, the elastic hook includes an elastic rod 1032 with multiple split grooves fixedly connected to the middle of the right side of the first shell 103, and the right end of the elastic rod 1032 is fixedly connected to a contact block 1033, which is used to slide on the inner wall of the guide cylinder 301 and maintain elastic contact.

[0038] In this way, the right side of the first shell 103 is arranged as an elastic hook composed of an elastic rod 1032 and a contact block 1033. The elastic hook can be moved and plugged in the left end light hole inside the guide cylinder 301 and maintain elastic contact. Since a guide sleeve 4 is added on the basis of the elastic hook connection, the first shell 103 moves in the inner hole of the guide sleeve 4, avoiding the tilting of the first shell 103 when moving in the free space, ensuring the coaxiality of the product, thereby ensuring the radio frequency electrical performance, and making the insertion force softer.

[0039] like Figure 3 , Figure 4 and Figure 5As shown: In this embodiment, the inner wall of the connecting tube 302 is provided with an internal thread, the left side of the second shell 203 is provided with a boss 2031 and an external thread, and a thread fastening glue 7 is applied between the internal thread and the external thread to ensure the reliability of the connection.

[0040] In this way, the connecting tube 302 at the left end of the connecting sleeve 3 is provided with a threaded hole, which is used to connect to the external thread with the back cutter groove of the second shell 203, so that the first connector 1 and the second connector 2 can be connected by threads, which is convenient for disassembly when the adapter fails the test, and for adjusting the performance of the adapter, thereby improving the processing efficiency. After the performance test of the adapter is qualified, the threaded adapter is unscrewed, and thread glue 7 is applied to the external thread and tightened again to improve the reliability of the connection.

[0041] like Figure 1 and Figure 2 As shown: In this embodiment, the outer surfaces of the first shell 103 and the second shell 203 are both provided with a stabilizing ring 8, which respectively improves the stability of the first connector 1 and the second connector 2 when plugged in, and has a better use effect.

[0042] like Figure 2 and Figure 5 As shown: In this embodiment, welding holes are provided on the right side of the guide sleeve 4 and the connecting tube 302, and solder 9 is provided in the welding holes for fixing the guide sleeve 4 and the connecting tube 302 together.

[0043] This arrangement allows the guide sleeve 4 and the connecting sleeve 302 to be welded and fixed, so that the guide sleeve 4 and the connecting sleeve 3 form a whole.

[0044] Adapter assembly method: The telescopic adapter is divided into assembling the first connector 1 and assembling the second connector 2 during assembly. When assembling the first connector 1, first install the first insulator 102 into the first housing 103, and then install the first conductor 101 into the first insulator 102. When installing, align the first through hole, and then use the coaxiality tool to detect the coaxiality of the first conductor 101 and the first housing 103. After the coaxiality is qualified, use the first potting glue 104 to pot, and after the first potting glue 104 is cured, install it into the guide sleeve 4, and then install the spring 5, and then press the connecting sleeve 3 into the guide sleeve 4, and fix it by soldering 9. When assembling the second connector 2, first install the second insulator 102 into the first housing 103, and then install the first conductor 101 into the first insulator 102. The body 202 is installed into the second shell 203, and then the second conductor 201 is installed into the second insulator 202. The second through hole is aligned during installation. Then the second conductor 201 and the second shell 203 are positioned and tested for coaxiality with the tool. After the coaxiality is qualified, they are potted with the second potting glue 204. After the second potting glue 204 is cured, the stabilizing ring 8 is installed from the contact head ends of the first shell 103 and the second shell 203; finally, the first connector 1 and the second connector 2 are connected together through the internal thread of the connecting cylinder 302 on the connecting sleeve 3 and the external thread of the boss 2031 of the second shell 203, and the thread fastening glue 7 is applied between the internal thread and the external thread to ensure the reliability of the connection.

[0045] Working principle: When the product is in use, first plug the right end of the second connector 2 of the adapter into the matching connector in the mounting plate, and then plug the left end of the first connector 1 of the adapter into the matching connector in the mounting plate at the other end. When the length of the adapter in the free state is the same as the adaptation distance between the mounting plates, the reverse force of the compressed spring 5 inside the adapter will support the first housing 103 of the adapter and prevent it from moving to the right, so that the first insulator 102 and the first conductor 101 fixed inside the first housing 103 will not move to the right, achieving reliable engagement. When the length of the adapter in the free state is greater than the length of the mounting plate When the first connector 1 moves with its mounting plate until the specified distance between the plates is reached, during which the first housing 103 is compressed by the spring 5 and moves rightward along the guide sleeve 4. The elastic hook, elastic rod 1032 and contact block 1033 at the right end of the first housing 103 move rightward in the inner hole of the guide cylinder 301 on the connecting sleeve 3, and at the same time drive the right end pin of the first conductor 101 fixed inside the first housing 103 to move rightward in the left end jack of the second conductor 201. When the first connector 1 and the mounting plate stop moving, the compression process of the first connector 1 stops.

[0046] The extension process of the first connector 1 is opposite to the movement direction. The maximum telescopic distance of the adapter is the difference between the length of the adapter in the free state and the length in the fully compressed state. This maximum telescopic distance is also the limit value of the cumulative tolerance between the panels that the adapter can accommodate.

[0047] All technical features in this embodiment can be freely combined according to actual needs.

[0048] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A high reliability retractable adapter, characterized in that: The adapter includes: A first connector (1) and a second connector (2), wherein the first connector (1) and the second connector (2) are plug-connected, a connecting sleeve (3) is detachably connected to the left side of the second connector (2), and the first connector (1) and the connecting sleeve (3) are connected by an elastic hook; A guide sleeve (4) is sleeved on the outer surface of the connecting sleeve (3), the left end of the guide sleeve (4) is slidably connected to the first connector (1), and the right end of the guide sleeve (4) is fixedly connected to the connecting sleeve (3); A spring (5), a cavity (6) is formed between the first connector (1), the connecting sleeve (3) and the guide sleeve (4), and the spring (5) is arranged inside the cavity (6).

2. The high reliability retractable adapter according to claim 1, characterized in that: The first connector (1) comprises a first conductor (101), a first insulator (102) and a first shell (103) which are fixedly connected in sequence from the inside to the outside, and the second connector (2) comprises a second conductor (201), a second insulator (202) and a second shell (203) which are fixedly connected in sequence from the inside to the outside, and the right end of the first conductor (101) is plug-connected with the left end of the second conductor (201).

3. The high reliability retractable adapter according to claim 2, characterized in that: The right end of the first conductor (101) is a pin structure, and the left end of the second conductor (201) is an elastic socket structure, wherein the pin structure is used to move in the elastic socket structure and maintain elastic contact.

4. The high reliability retractable adapter according to claim 2, characterized in that: The first conductor (101), the first insulator (102) and the first shell (103) are each provided with a first through hole, and a first potting glue (104) is arranged in the first through hole to fix the first conductor (101), the first insulator (102) and the first shell (103) together; the second conductor (201), the second insulator (202) and the second shell (203) are each provided with a second through hole, and a second potting glue (204) is arranged in the second through hole to fix the second conductor (201), the second insulator (202) and the second shell (203) together.

5. The high reliability retractable adapter according to claim 2, characterized in that: The connecting sleeve (3) comprises a guide cylinder (301) and a connecting cylinder (302) which are connected in sequence, the diameter of the connecting cylinder (302) is larger than the diameter of the guide cylinder (301), and a boss (303) is formed at the connection, the cavity (6) is formed by enclosing the boss (303), the guide cylinder (301) and the guide sleeve (4), and the spring (5) is sleeved on the outer surface of the guide cylinder (301).

6. The high reliability retractable adapter according to claim 2, characterized in that: A first limiting step (1031) is fixedly connected to the right outer surface of the first shell (103), the first limiting step (1031) is in contact with the inner wall of the guide sleeve (4), and a second limiting step (401) corresponding to the first limiting step (1031) is fixedly connected to the left inner wall of the guide sleeve (4).

7. The high reliability retractable adapter according to claim 5, characterized in that: The elastic hook comprises an elastic rod (1032) with a plurality of split grooves fixedly connected to the middle of the right side of the first shell (103), and a contact block (1033) is fixedly connected to the right end of the elastic rod (1032), and the contact block (1033) is used to slide on the inner wall of the guide cylinder (301) and maintain elastic contact.

8. The high reliability retractable adapter according to claim 5, characterized in that: The inner wall of the connecting tube (302) is provided with an internal thread, the left side of the second shell (203) is provided with a boss (2031) and an external thread, and a thread fastening glue (7) is applied between the internal thread and the external thread to ensure the reliability of the threaded connection.

9. The high reliability retractable adapter according to claim 2, characterized in that: The outer surfaces of the first shell (103) and the second shell (203) are both provided with stabilizing rings (8).

10. The high reliability retractable adapter according to claim 5, characterized in that: A welding hole is provided on the right side of the guide sleeve (4) and the connecting tube (302), and solder (9) is provided in the welding hole for fixedly connecting the guide sleeve (4) and the connecting tube (302).

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