Detachable pin header test connector and pin header test device

Abstract

The embodiment of the utility model provides a detachable pin header test joint and a pin header test device, and the detachable pin header test joint comprises a housing which is provided with a plurality of dismounting holes; the plurality of first contact pins are correspondingly mounted in the plurality of dismounting holes, each first contact pin comprises a first end and a second end which are opposite to each other, the first end extends out relative to the dismounting hole, the second end retracts relative to the dismounting hole, one of the first end and the second end is used for being connected with a test product, and the other one of the first end and the second end is used for being connected with a signal cable; the first contact pin is configured to be detachable from the dismounting hole along a first direction, and the first direction is a direction from the first end to the second end. Through the arrangement, automatic testing can be conveniently achieved, and therefore the testing efficiency is improved. Meanwhile, the first contact pin is configured to be detachable from the dismounting hole in the first direction, so that replacement is facilitated, and different test requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of pin testing, in particular to a detachable pin testing joint and a pin testing device. Background Art

[0002] A female header is a common connector, which is widely used in electronics, electrical appliances, and instruments as a general connector, mainly playing the role of current or signal transmission. The female header is usually used in combination with pins to form a board-to-board connection.

[0003] Before leaving the factory, pins and female headers usually need to be tested. In the related art, an artificial method is used to test pins and female headers, that is, an operator manually docks the test product to be tested with a signal cable to perform signal testing. In this way, the testing efficiency is low, and due to the large number of specifications and types of test products, it is difficult to meet different testing requirements. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a detachable pin testing joint and a pin testing device, which can improve the testing efficiency and meet different testing requirements.

[0005] In a first aspect, an embodiment of the utility model provides a detachable pin testing joint. The detachable pin testing joint includes: a housing, provided with a plurality of disassembly holes; a plurality of first contact pins, correspondingly installed in the plurality of disassembly holes. The first contact pin includes a first end and a second end facing away from each other. The first end extends out of the disassembly hole, and the second end retracts into the disassembly hole. One of the first end and the second end is used to connect with the test product, and the other is used to connect with the signal cable. The first contact pin is configured to be detachable from the disassembly hole along a first direction, and the first direction is the direction from the first end towards the second end.

[0006] The detachable pin testing joint provided by the first aspect embodiment of the utility model has at least the following beneficial effects:

[0007] In the detachable pin testing joint provided by the embodiment of the utility model, one of the first end and the second end of the first contact pin is used to connect with the test product, and the other is used to connect with the signal cable, so as to facilitate automated testing, thereby improving the testing efficiency. At the same time, the first contact pin is configured to be detachable from the disassembly hole along the first direction, so as to facilitate replacement, thereby meeting different testing requirements.

[0008] In an embodiment of this embodiment, the distance that the first end extends out of the disassembly hole is greater than the distance that the second end retracts into the disassembly hole.

[0009] In one embodiment of this implementation manner, in the first direction, the disassembly and assembly hole is a stepped hole with a gradually increasing diameter, and at least part of the inner wall of the stepped hole is connected to the outer wall of the first contact pin.

[0010] In one embodiment of this implementation manner, the stepped hole includes a first hole, a second hole, and a third hole that are sequentially communicated in the first direction. The first contact pin includes a first contact portion, a connecting portion, and a second contact portion that are sequentially connected in the first direction. The outer wall of the first contact portion is connected to the inner wall of the first hole, and / or the outer wall of the connecting portion is connected to the inner wall of the second hole. The second contact portion is accommodated in the third hole.

[0011] In one embodiment of this implementation manner, there is a spacing distance between the outer wall of the second contact portion and the inner wall of the third hole.

[0012] In one embodiment of this implementation manner, the radial dimension of the second contact portion is greater than the diameter of the second hole.

[0013] In one embodiment of this implementation manner, the detachable pin test joint includes a second contact pin. The housing includes a main body block and a disassembly and assembly block. The main body block and the disassembly and assembly block are detachably connected, and an installation hole is defined between the main body block and the disassembly and assembly block. The second contact pin is installed in the installation hole. One end of the second contact pin in the same direction as the first end extends out of the installation hole, and the other end of the second contact pin in the same direction as the second end retracts into the installation hole.

[0014] In one embodiment of this implementation manner, the main body block and / or the disassembly and assembly block are provided with a card slot, and the card slot communicates with the installation hole. The card slot is used for clamping a part of the second contact pin to limit the axial movement of the second contact pin.

[0015] In one embodiment of this implementation manner, the second contact pin includes a first part and a second part that are detachably connected. One end of the first part facing away from the second part extends out of the installation hole, and one end of the second part facing away from the first part retracts into the installation hole.

[0016] In a second aspect, an embodiment of the present invention provides a pin test device. The pin test device includes a driving mechanism and the detachable pin test joint according to any one of the embodiments of the first aspect. The driving mechanism is connected to the detachable pin test joint to drive the detachable pin test joint to approach or move away from the test product.

[0017] The pin test device provided by the second aspect embodiment of the present invention has at least the following beneficial effects:

[0018] By adding the detachable pin test joint 100 provided by the embodiment of the present invention to the pin test device, the pin test device can achieve automated testing, thereby improving the testing efficiency. At the same time, it can be applied to the testing of different specifications and types of test products, improving the applicability of the pin test device.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0021] Figure 1 is a three-dimensional structural schematic diagram of the detachable pin test joint provided by the embodiment of the present invention;

[0022] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the detachable pin test joint in a sectional state;

[0023] Figure 3 is Figure 1 a three-dimensional structural schematic diagram of the detachable pin test joint in a disassembled state;

[0024] Figure 4 is Figure 1 a three-dimensional structural schematic diagram of the detachable pin test joint in a sectional state;

[0025] Figure 5 is Figure 1 a three-dimensional structural schematic diagram of the detachable pin test joint from another perspective.

[0026] Reference Signs:

[0027] Detachable pin test joint 100; housing 10; male seat 11; first male seat 111; second male seat 112; female seat 12; installation chamber 105; first chamber 1051; second chamber 1052; guiding protrusion 13; main body block 15; disassembly and assembly block 16; disassembly and assembly hole 101; first hole 1011; second hole 1012; third hole 1013; installation hole 102; card slot 103; first contact pin 20; first end 21; second end 22; first contact portion 23; connecting portion 24; second contact portion 25; second contact pin 30; first part 31; second part 32. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, the meaning of several is more than one, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0032] In the description of the present utility model, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic perspective view of the detachable pin test joint 100 provided by the embodiment of the present utility model; Figure 2 is Figure 1Schematic perspective view of the detachable pin test adapter 100 in a sectional state. An embodiment of the present utility model provides a detachable pin test adapter 100, which includes a housing 10 and a plurality of first contact pins 20. The plurality of first contact pins 20 are all inserted through the housing 10.

[0034] In an embodiment of this embodiment, please continue to refer to Figure 1 and Figure 2 , the housing 10 is provided with a plurality of disassembly and assembly holes 101, and the plurality of first contact pins 20 are correspondingly installed in the plurality of disassembly and assembly holes 101. The first contact pin 20 includes a first end 21 and a second end 22 facing away from each other. The first end 21 extends out relative to the disassembly and assembly hole 101, and the second end 22 retracts relative to the disassembly and assembly hole 101. One of the first end 21 and the second end 22 is used to connect with the test product, and the other is used to connect with the signal cable. The first contact pin 20 is configured to be detachable from the disassembly and assembly hole 101 along a first direction, and the first direction is the direction in which the first end 21 faces the second end 22.

[0035] Specifically, in this embodiment, the first end 21 is used to connect with the signal cable, and the second end 22 is used to connect with the test product. And in this application scenario, the test product is a female header. In other embodiments, the first end 21 can also be set to be used to connect with the test product, and the second end 22 can be set to be used to connect with the signal cable. It can be understood that, compared with the manual testing method, the detachable pin test adapter 100 can complete the test by connecting the first end 21 of the first contact pin 20 with the signal cable and then plugging different test products onto the second end 22 of the first contact pin 20. In this way, the signal cable does not need to be frequently plugged and unplugged, which is beneficial to realizing automation and thus improving the test efficiency. And, since the type specifications (such as pin gauges) of different test products are different, in the detachable pin test adapter 100 provided by the present utility model, the first contact pin 20 is configured to be detachable from the disassembly and assembly hole 101 along the first direction for easy replacement, so as to meet different test requirements.

[0036] For the detachable pin test adapter 100 provided by the embodiment of the present utility model, one of the first end 21 and the second end 22 of the first contact pin 20 is used to connect with the test product, and the other is used to connect with the signal cable, so as to facilitate automated testing and thus improve the test efficiency. At the same time, the first contact pin 20 is configured to be detachable from the disassembly and assembly hole 101 along the first direction for easy replacement, so as to meet different test requirements.

[0037] In an embodiment of this embodiment, please refer to Figure 1 and Figure 2, the distance that the first end 21 extends relative to the disassembly and assembly hole 101 is greater than the distance that the second end 22 retracts relative to the disassembly and assembly hole 101. It can be understood that when detaching the first contact pin 20, a thrust force in the first direction needs to be applied to the first contact pin 20 so that the first contact pin 20 moves along the axial direction of the disassembly and assembly hole 101 and leaves the disassembly and assembly hole 101. In this embodiment, by setting the distance that the first end 21 extends relative to the disassembly and assembly hole 101 to be greater than the distance that the second end 22 retracts relative to the disassembly and assembly hole 101, after pushing the first contact pin 20 so that the first end 21 extends into the disassembly and assembly hole 101, the second end 22 can extend out of the disassembly and assembly hole 101, facilitating the extraction of the first contact pin 20 from the second end 22 and improving the convenience of detaching the first contact pin 20.

[0038] In an embodiment of this implementation manner, please refer to Figure 1 and Figure 2 , in the first direction, the disassembly and assembly hole 101 is a stepped hole with a gradually increasing diameter, and at least part of the inner wall of the stepped hole is connected to the outer wall of the first contact pin 20. Such a setting is to facilitate the relatively fixed installation and positioning of the first contact pin 20 in the disassembly and assembly hole 101 through friction.

[0039] In an embodiment of this implementation manner, please refer to Figure 1 and Figure 2 , the stepped hole includes a first hole 1011, a second hole 1012, and a third hole 1013 that are sequentially connected in the first direction. The first contact pin 20 includes a first contact portion 23, a connecting portion 24, and a second contact portion 25 that are sequentially connected in the first direction. The outer wall of the first contact portion 23 is connected to the inner wall of the first hole 1011, and / or the outer wall of the connecting portion 24 is connected to the inner wall of the second hole 1012, and the second contact portion 25 is accommodated in the third hole 1013. Specifically, the first end 21 is the end of the first contact portion 23 far from the connecting portion 24, and the second end 22 is the end of the second contact portion 25 far from the connecting portion 24. In this embodiment, the outer wall of the first contact portion 23 is connected to the inner wall of the first hole 1011, and the outer wall of the connecting portion 24 is connected to the inner wall of the second hole 1012. In other embodiments, it can also be set that the outer wall of the first contact portion 23 is connected to the inner wall of the first hole 1011, or the outer wall of the connecting portion 24 is connected to the inner wall of the second hole 1012. Preferably, the first end 21 is used to connect to the signal cable, and the second end 22 is connected to the test product. In this way, under frequent plugging and unplugging of the test product, the first contact pin 20 can still be in the disassembly and assembly hole 101. Through the above settings, it is convenient to be fixed in the disassembly and assembly hole 101 by the interference connection between the first contact portion 23 and / or the connecting portion 24 and the inner wall of the disassembly and assembly hole 101.

[0040] In an embodiment of this implementation manner, please refer to Figure 1 and Figure 2, there is a spacing distance between the outer wall of the second contact portion 25 and the inner wall of the third hole 1013 to facilitate the disassembly and assembly of the first contact pin 20.

[0041] In one embodiment of this implementation manner, please refer to Figure 1 and Figure 2 , the radial dimension of the second contact portion 25 is greater than the diameter of the second hole 1012 to limit the second contact portion 25 from entering the second hole 1012 and reduce the risk of the first contact pin 20 being installed too deeply.

[0042] In one embodiment of this implementation manner, please refer to Figure 3 , the detachable pin test joint 100 includes a second contact pin 30. The housing 10 includes a main body block 15 and a disassembly and assembly block 16. The main body block 15 and the disassembly and assembly block 16 are detachably connected, and an installation hole 102 is defined between the main body block 15 and the disassembly and assembly block 16. The second contact pin 30 is installed in the installation hole 102. One end of the second contact pin 30 in the same direction as the first end 21 extends out relative to the installation hole 102, and the other end of the second contact pin 30 in the same direction as the second end 22 retracts relative to the installation hole 102. It can be understood that the shapes of the contact pins of some pin gauges are relatively special and it is difficult to disassemble and assemble them through the disassembly and assembly hole 101. By providing the detachably connected main body block 15 and disassembly and assembly block 16, an installation hole 102 for installing the second contact pin 30 is defined between the main body block 15 and the disassembly and assembly block 16, so that the disassembly and assembly of the second contact pin 30 can be achieved by disassembling and assembling the main body block 15 and the disassembly and assembly block 16, which is convenient for replacement, thereby improving the applicability of the test.

[0043] In one embodiment of this implementation manner, please refer to Figure 3 and Figure 4 , Figure 3 is Figure 1 the three-dimensional structural schematic diagram of the detachable pin test joint 100 in a disassembled state; Figure 4 is Figure 1 the three-dimensional structural schematic diagram of the detachable pin test joint 100 in a sectional state. The main body block 15 and / or the disassembly and assembly block 16 are provided with a card slot 103. The card slot 103 communicates with the installation hole 102. The card slot 103 is used for partially clamping the second contact pin 30 to limit the axial movement of the second contact pin 30. In this embodiment, both the main body block 15 and the disassembly and assembly block 16 are provided with a card slot 103. In other embodiments, the card slot 103 can also be provided only in one of the main body block 15 and the disassembly and assembly block 16. Through the above settings, the axial movement of the second contact pin 30 can be restricted to ensure the smooth progress of the test.

[0044] In one embodiment of this implementation manner, please refer to Figure 3 and Figure 4, the second contact pin 30 includes a first part 31 and a second part 32 that are detachably connected. One end of the first part 31 facing away from the second part 32 extends relative to the mounting hole 102, and one end of the second part 32 facing away from the first part 31 is indented relative to the mounting hole 102. With such a setting, the second contact pin 30 has a segmented design, thereby reducing the difficulty of disassembling and assembling the second contact pin 30.

[0045] Specifically, a part of the first part 31 is snap-fitted into the card slot 103, thereby realizing the axial limit of the first part 31. The second part 32 is limited by the mounting hole 102 configured as a stepped hole, thereby realizing the axial limit of the second part 32.

[0046] In an embodiment of this implementation manner, please refer to Figure 1 , Figure 2 and Figure 5 , Figure 5 is Figure 1 The three-dimensional structure schematic diagram of the detachable pin test joint 100 from another perspective. The housing 10 includes a connected male seat 11 and a female seat 12, and the female seat 12 is provided with a mounting chamber 105. A plurality of first contact pins 20 all pass through the male seat 11 and the female seat 12. The first contact pin 20 includes a first end 21 and a second end 22 facing away from each other. The first end 21 extends into the mounting chamber 105, and the mounting chamber 105 is used for the signal cable to extend into and connect with the first end 21. The second end 22 is recessed relative to the male seat 11, and a guiding protrusion 13 is provided on the side surface of the male seat 11. The guiding protrusion 13 is used to guide the test product so that the test product slides relative to the male seat 11 and connects with the second end 22. Specifically, in this embodiment, the test product is a female header, and the test cable is a pin header. Among the plurality of first contact pins 20, there is a spacing distance between any two adjacent first contact pins 20, and the extending directions of the plurality of first contact pins 20 are the same. By providing the guiding protrusion 13 on the side surface of the male seat 11, the guiding protrusion 13 can guide the test product so that the test product slides relative to the male seat 11 and connects with the second end 22 of the first contact pin 20, reducing the risk of the test product being damaged. At the same time, the first end 21 of the first contact pin 20 is connected to the signal cable, so as to facilitate the realization of automated testing, thereby improving the testing efficiency.

[0047] It should be noted that the test product is usually provided with a fixed buckle position and an anti-fool buckle position. The fixed buckle position is used to be relatively fixed with the cable for clamping, and the anti-fool buckle position is used to cooperate with the anti-fool structure on the cable to reduce the risk of wrong installation. However, due to the different specifications and types of the test products, the settings of the fixed buckle position and the anti-fool buckle position on the test products are different. In order to prevent the fixed buckle position and the anti-fool buckle position from affecting the test efficiency, they need to be avoided. The detachable pin header test connector 100 provided by the utility model guides the test product through the guide protrusion 13, that is, the guide protrusion 13 and the side surface (113 and 117) of the male seat 11 are connected to the inner side surface of the shell of the test product for guidance, and the fixed buckle position and the anti-fool buckle position on the shell can be avoided to ensure the convenience of disassembly and assembly of both.

[0048] In one embodiment of this implementation, please refer to Figure 1 , Figure 2 and Figure 5 The male socket 11 includes a first male socket 111 and a second male socket 112 arranged at intervals, the installation chamber 105 is divided into a first chamber 1051 and a second chamber 1052, part of the first contact pins 20 are arranged through the first male socket 111 and the female socket 12 and extend into the first chamber 1051, and part of the first contact pins 20 are arranged through the second male socket 112 and the female socket 12 and extend into the second chamber 1052. Specifically, the first contact pins 20 arranged through the first male socket 111 and the female socket 12 and extend into the first chamber 1051 are distributed in two rows, and the second contact pins 30 arranged through the second male socket 112 and the female socket 12 and extend into the second chamber 1052 are also distributed in two rows. Such a configuration can meet different test requirements.

[0049] In one embodiment of this implementation, please refer to Figure 1 , Figure 2 and Figure 5 A guide protrusion 13 is provided on one side of the first male seat 111 facing away from the second male seat 112, and an end surface 114 of the first male seat 111 facing away from the female seat 12 is flush with an end surface 114 of the guide protrusion 13 facing away from the female seat 12. This arrangement allows the first male seat 111 to guide the test product configured as a female row through the guide protrusion 13. Specifically, the side surface 113 of the guide protrusion 13 is used to guide the inner wall of the shell of the test product.

[0050] In one embodiment of this implementation, please refer to Figure 1 , Figure 2 and Figure 5 The first male seat 111 and the side surface 113 and the end surface 114 of the guide protrusion 13 are transitioned through the first chamfered surface 115. By providing the first chamfered surface 115, the error tolerance of the first contact pin 20 on the first male seat 111 and the test product can be improved.

[0051] In an embodiment of this implementation manner, please refer to Figure 1 , Figure 2 and Figure 5 . On one side of the second male socket 112 facing the first male socket 111, a guiding protrusion 13 is provided. The end face 118 of the second male socket 112 facing away from the female socket 12 and the end face 118 of the guiding protrusion 13 facing away from the female socket 12 are flush. With such a setting, it is convenient for the second male socket 112 to guide the test product configured as a female header through the guiding protrusion 13.

[0052] In an embodiment of this implementation manner, please refer to Figure 1 , Figure 2 and Figure 5 . The side surface 117 and the end face 118 of the second male socket 112 and the guiding protrusion 13 are transitioned through a second chamfered surface 119. By providing the second chamfered surface 119, the error tolerance rate of the docking between the first contact pin 20 on the second male socket 112 and the test product can be improved.

[0053] In an embodiment of this implementation manner, please refer to Figure 5 . The number of guiding protrusions 13 is multiple, and the multiple guiding protrusions 13 are arranged at intervals. Specifically, in this embodiment, the first male socket 111 is provided with one guiding protrusion 13, and the second male socket 112 is provided with two guiding protrusions 13. In other embodiments, the arrangement and number of the guiding protrusions 13 can also be different, and can be specifically designed according to the test product to be tested. By providing multiple guiding protrusions 13 on the second male socket 112 and arranging the multiple guiding protrusions 13 at intervals, on the one hand, the purpose of avoiding the fixing buckle positions and anti-fooling buckle positions on the test product can be achieved, and on the other hand, there is sufficient contact area, thereby ensuring the guiding effect.

[0054] Please refer to Figure 1 . This implementation manner of the present utility model also provides a pin test device. The pin test device includes a driving mechanism (not shown) and a detachable pin test joint 100. The driving mechanism is connected to the detachable pin test joint 100 to drive the detachable pin test joint 100 to approach or move away from the test product. Specifically, the detachable pin test joint 100 is slidably arranged on the base, the driving mechanism is installed on the base, and the driving mechanism is configured as a power source such as a motor, a hydraulic cylinder, or a cylinder. The driving mechanism drives the detachable pin test joint 100 to slide relative to the base, thereby achieving approaching or moving away from the test product. By adding the detachable pin test joint 100 provided in this implementation manner of the present utility model to the pin test device, the pin test device can achieve automated testing, thereby improving the testing efficiency. At the same time, the risk of the test product being damaged can be reduced. The pin test device can be applied to the testing of test products of different specifications and types, improving the applicability of the pin test device.

[0055] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art. In addition, the embodiments of the present utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A detachable pin test adapter, characterized in that Comprising: A housing, provided with a plurality of disassembly and assembly holes; A plurality of first contact pins, correspondingly installed in the plurality of disassembly and assembly holes. The first contact pin includes a first end and a second end facing away from each other. The first end extends relative to the disassembly and assembly hole, and the second end retracts relative to the disassembly and assembly hole. One of the first end and the second end is used to connect with the test product, and the other is used to connect with the signal cable. The first contact pin is configured to be detachable from the disassembly and assembly hole along a first direction, and the first direction is the direction in which the first end faces the second end.

2. The detachable pin test adapter according to claim 1, wherein, The distance that the first end extends relative to the disassembly and assembly hole is greater than the distance that the second end retracts relative to the disassembly and assembly hole.

3. The detachable pin test adapter according to claim 1, wherein, In the first direction, the disassembly and assembly hole is a stepped hole with a gradually increasing diameter, and at least part of the inner wall of the stepped hole is connected to the outer wall of the first contact pin.

4. The detachable pin test adapter according to claim 3, wherein The stepped hole includes a first hole, a second hole, and a third hole that are sequentially communicated in the first direction. The first contact pin includes a first contact portion, a connecting portion, and a second contact portion that are sequentially connected in the first direction. The outer wall of the first contact portion is connected to the inner wall of the first hole, and / or the outer wall of the connecting portion is connected to the inner wall of the second hole. The second contact portion is accommodated in the third hole.

5. The detachable pin test adapter according to claim 4, wherein There is a spacing distance between the outer wall of the second contact portion and the inner wall of the third hole.

6. The detachable pin test adapter according to claim 4, wherein, The radial dimension of the second contact portion is greater than the diameter of the second hole.

7. The detachable pin test adapter according to claim 1, characterized in that The detachable pin test joint includes a second contact pin. The housing includes a main body block and a disassembly and assembly block. The main body block and the disassembly and assembly block are detachably connected, and an installation hole is defined between the main body block and the disassembly and assembly block. The second contact pin is installed in the installation hole. One end of the second contact pin in the same direction as the first end extends relative to the installation hole, and the other end of the second contact pin in the same direction as the second end retracts relative to the installation hole.

8. The detachable pin test adapter according to claim 7, wherein The main body block and / or the disassembly and assembly block is provided with a card slot, and the card slot communicates with the installation hole. The card slot is used to engage with a part of the second contact pin to limit the axial movement of the second contact pin.

9. The detachable pin test adapter according to claim 7, wherein, The second contact pin includes a first part and a second part that are detachably connected. One end of the first part facing away from the second part extends relative to the installation hole, and one end of the second part facing away from the first part retracts relative to the installation hole.

10. Pin test device, characterized in that, Comprising a driving mechanism and a detachable pin test joint according to any one of claims 1 to 9. The driving mechanism is connected to the detachable pin test joint to drive the detachable pin test joint to approach or move away from the test product.

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