Plugging jig

Abstract

The utility model discloses a plugging and unplugging jig. The insertion and extraction jig is used for assisting insertion and extraction of a plurality of pieces to be inserted and extracted, and comprises a jig body and an unlocking sheet, the jig body comprises a plurality of clamping holes arranged in the first direction and used for clamping a plurality of pieces to be inserted and pulled out. The unlocking piece is installed on the jig body in a sliding mode in the first direction, the unlocking piece comprises a driving part and a plurality of unlocking parts, and one unlocking part corresponds to one clamping hole; the unlocking part comprises a driving inclined face, and the driving inclined face inclines towards the direction close to the clamping hole in the first direction. The driving part is used for driving the unlocking part to press the to-be-plugged piece along a second direction; the second direction is perpendicular to the first direction and is perpendicular to the axis direction of the clamping hole. According to the plugging jig, plugging of a plurality of pieces to be plugged can be completed at the same time, the plugging efficiency of the pieces to be plugged can be greatly improved, the number of assemblies is small, and the structure is simple and reliable.

Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing technology, and in particular to a plug-in / plug-out fixture. Background Technology

[0002] As a communication device, fiber optic cables require plugging and unplugging when used in scenarios such as switch maintenance. Previously, this was done manually. For example, when connecting 256 fibers to a switch, manually plugging and unplugging each fiber individually would take approximately 10 minutes, which was cumbersome and time-consuming. While current technologies that connect two fibers in parallel can reduce the number of plugging and unplugging operations by half, the process remains inconvenient and inefficient. Utility Model Content

[0003] This application discloses a insertion and removal fixture, which can significantly improve the insertion and removal efficiency of the parts to be inserted or removed, and has a simple and reliable structure.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] This application provides a plugging and unplugging fixture for assisting in the plugging and unplugging of multiple components, including a fixture body and an unlocking plate;

[0006] The fixture body includes a plurality of clamping holes arranged along a first direction for clamping the plurality of insertable and removable parts;

[0007] The unlocking plate is slidably mounted on the fixture body along the first direction. The unlocking plate includes a driving part and a plurality of unlocking parts, and one unlocking part is correspondingly provided with one clamping hole. The unlocking part includes a driving inclined surface, which is inclined toward the direction close to the clamping hole along the first direction.

[0008] The driving part is used to drive the unlocking part to press the insert / remove part along the second direction; wherein the second direction is perpendicular to the first direction and perpendicular to the axial direction of the clamping hole.

[0009] The aforementioned insertion / removal fixture can be used to insert and remove multiple components. Specifically, the insertion / removal fixture of this application includes a fixture body and an unlocking piece slidably mounted on the fixture body. The fixture body includes multiple clamping holes arranged along a first direction, each clamping hole for clamping one component to be inserted / removed. The unlocking piece can slide on the fixture body along the first direction. The unlocking piece includes a driving part and multiple unlocking parts, the driving part being fixedly connected to the multiple unlocking parts, with one unlocking part corresponding to one clamping hole. Each unlocking part includes a driving inclined surface, and along the first direction, the driving inclined surface is inclined towards the direction close to the clamping hole, i.e., the unlocking part has a sawtooth-like shape. The driving part is used to drive the unlocking part to press the component to be inserted / removed along a second direction. In the application of the insertion / removal fixture, the multiple clamping holes of the insertion / removal fixture clamp multiple components to be inserted / removed, such as the plug portion of an LC type optical fiber. The latch of each optical fiber plug engages with the groove formed by two adjacent unlocking parts, so that multiple components to be inserted / removed can be inserted into the device to be used, such as into a switch. When multiple components need to be removed after insertion, the driving part can be pressed manually or with the help of other components along the first direction, causing the unlocking plate to slide along the first direction on the fixture body, thereby moving multiple unlocking parts on the unlocking plate in the first direction. Since the fiber optic plug's latch obstructs the movement of the unlocking parts, the driving slope of the unlocking part applies pressure to the fiber optic latch. As the unlocking part moves, the latch slides along the driving slope, generating a downward pressing force. When the fiber optic latch moves to the lowest point of the unlocking part, which is the position where the unlocking part is at its largest size in the second direction, the unlocking of multiple fiber optic latches is complete. At this point, the insertion / removal fixture can be pulled outwards, and the components to be inserted / removed are removed from the device under the friction between the unlocking part and the latch, ultimately completing the simultaneous removal of multiple fibers. The insertion / removal fixture of this application can simultaneously complete the insertion and removal of multiple components, significantly improving the insertion and removal efficiency, and has a small number of components, making its structure simple and reliable.

[0010] In some embodiments, each of the unlocking parts further includes an auxiliary inclined surface, the driving inclined surface is connected to the auxiliary inclined surface, the angle between the driving inclined surface and the first direction is 28°-32°, and the angle between the auxiliary inclined surface and the first direction is 83°-87°.

[0011] In some embodiments, the driving ramp includes a first arcuate surface and a second arcuate surface, the first arcuate surface protruding toward the side opposite to the clamping hole, and the second arcuate surface protruding toward the side of the clamping hole, and the first arcuate surface and the second arcuate surface being smoothly connected.

[0012] In some embodiments, along the first direction, the slope at any position in the first arcuate surface is less than the slope at any position in the second arcuate surface.

[0013] In some embodiments, the vertical distance between the driving ramp and the side surface of the clamping hole facing the unlocking part is 0.8mm-1.2mm.

[0014] In some embodiments, the center distance between any two adjacent unlocking parts is equal to the center distance between any two adjacent clamping holes.

[0015] In some embodiments, the maximum vertical distance from the first arcuate surface to the first reference surface is 0.3 to 5 times the maximum vertical distance from the second arcuate surface to the second reference surface; wherein, the first reference surface is the plane defined by connecting the start end and the end end of the first arcuate surface, and the second reference surface is the plane defined by connecting the start end and the end end of the second arcuate surface.

[0016] In some embodiments, the length of the first reference surface along the first direction is 0.3 to 5 times the length of the second reference surface along the first direction.

[0017] In some embodiments, the insertion / removal fixture further includes a lever assembly rotatably connected to the fixture body for driving the driving portion of the unlocking piece to make the unlocking piece slide along the first direction.

[0018] In some embodiments, the lever assembly includes a handle and a pressing portion connected to each other, the handle extending along the axial direction of the clamping hole, and the pressing portion being kinetically connected to the driving portion of the unlocking piece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a plugging and unplugging fixture provided in an embodiment of this application;

[0020] Figure 2 for Figure 1 A front view structural diagram;

[0021] Figure 3 This is a schematic diagram of the structure of a insertion / removal fixture and a component to be inserted / removed, provided in an embodiment of this application.

[0022] Figure 4 This application provides a schematic diagram of the structure of a component to be inserted / removed and a locking piece engaging.

[0023] Figure 5 This is a schematic diagram of the structure of an unlocking part provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of a driving inclined plane provided in an embodiment of this application;

[0025] Figure 7A schematic diagram illustrating the structure of another insertion / removal fixture and the component to be inserted / removed provided in this application embodiment;

[0026] Figure 8 for Figure 7 A schematic diagram of the exploded structure;

[0027] Figure 9 for Figure 7 A front view structural diagram;

[0028] Icons: 01, component to be inserted / removed; 011, buckle; 1, fixture body; 11, clamping hole; 2, unlocking piece; 21, driving part; 22, unlocking part; 221, groove; 222, driving slope; 2221, first arc-shaped surface; 2222, second arc-shaped surface; 223, auxiliary slope; 224, constant height surface; 3, lever assembly; 31, handle; 32, pressing part. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0031] like Figures 1-7 As shown, this application embodiment provides a insertion / removal fixture for assisting in the insertion and removal of multiple components 01 to be inserted or removed, including a fixture body 1 and an unlocking piece 2:

[0032] The fixture body 1 includes a plurality of clamping holes 11 arranged along a first direction for clamping a plurality of insertable / removable parts 01;

[0033] The unlocking piece 2 is slidably mounted on the fixture body 1 along the first direction. The unlocking piece 2 includes a driving part 21 and a plurality of unlocking parts 22. One unlocking part 22 is correspondingly provided with one clamping hole 11. The unlocking part 22 includes a driving inclined surface 222. Along the first direction, the driving inclined surface 222 is inclined toward the direction close to the clamping hole 11.

[0034] The driving part 21 is used to drive the unlocking part 22 to press the insert / remove member 01 along the second direction; wherein the second direction is perpendicular to the first direction and perpendicular to the axial direction of the clamping hole 11.

[0035] The aforementioned insertion / removal fixture can be used to insert or remove multiple components 01 to be inserted or removed. Specifically, as shown... Figures 1-3 As shown, the insertion / removal fixture of this application embodiment includes a fixture body 1 and an unlocking piece 2 slidably mounted on the fixture body 1. The fixture body 1 includes a plurality of clamping holes 11 arranged along a first direction, and each clamping hole 11 is used to clamp a component 01 to be inserted or removed. The unlocking piece 2 can slide on the fixture body 1 along the first direction. The unlocking piece 2 includes a driving part 21 and a plurality of unlocking parts 22. The driving part 21 is fixedly connected to the plurality of unlocking parts 22, and one unlocking part 22 is correspondingly disposed with one clamping hole 11. Each unlocking part 22 includes a driving inclined surface 222, and along the first direction, the driving inclined surface 222 is inclined toward the direction close to the clamping hole 11. That is, the vertical distance from the driving inclined surface 222 to the clamping hole 11 in the second direction gradually decreases, i.e., the unlocking part 22 has a sawtooth-like shape. The driving part 21 is used to drive the unlocking part 22 to press the component 01 to be inserted or removed along the second direction.

[0036] like Figure 3 As shown, during the application of the insertion / removal fixture, multiple clamping holes 11 of the fixture clamp multiple components 01 to be inserted or removed, such as the plug portion of an LC-type optical fiber. The latch 011 of each optical fiber plug engages with the groove 221 formed by two adjacent unlocking parts 22, allowing multiple components 01 to be inserted or removed to be inserted into the device to be used, such as a switch. Figure 4As shown, when multiple insertion / removal components 01 need to be removed after insertion, the driving part 21 can be pressed manually or with the help of other components along the first direction, causing the unlocking plate 2 to slide on the fixture body 1 along the first direction, thereby driving the multiple unlocking parts 22 on the unlocking plate 2 to move in the first direction. Since the buckle 011 of the fiber optic plug will obstruct the movement of the unlocking part 22, the driving slope 222 of the unlocking part 22 will exert pressure on the fiber optic buckle 011. As the unlocking part 22 moves, the buckle 011 will slide along the driving slope 222 of the unlocking part 22, generating a downward pressing force on the buckle 011. When the fiber optic buckle 011 moves to the lowest end of the unlocking part 22, that is, when the unlocking part 22 is at its largest size in the second direction, the unlocking of multiple fiber optic buckles 011 is completed. At this time, the insertion / removal fixture can be pulled outwards, and under the action of the friction between the unlocking part 22 and the buckle 011, the insertion / removal component 01 can be moved out of the device to be used, thus completing the simultaneous removal of multiple optical fibers.

[0037] The insertion and removal fixture of this application embodiment can simultaneously complete the insertion and removal of multiple components 01 to be inserted or removed, which can greatly improve the insertion and removal efficiency of the components 01 to be inserted or removed, and has a small number of components and a simple and reliable structure.

[0038] It should be noted that the unlocking part 22 and the clamping hole 11 have a certain gap in the second direction so that when the insertable part 01 is unlocked, the buckle 011 part of the insertable part 01 can be moved smoothly to the gap and pulled out under the action of friction.

[0039] In some embodiments, each unlocking part 22 further includes an auxiliary inclined surface 223, the driving inclined surface 222 and the auxiliary inclined surface 223 are connected, the angle between the driving inclined surface 222 and the first direction is 28°-32°, and the angle between the auxiliary inclined surface 223 and the first direction is 83°-87°.

[0040] One possible way to achieve this is, such as Figure 2As shown, each unlocking part 22 may include a driving ramp 222 and an auxiliary ramp 223 connected to each other. The angle between the driving ramp 222 and the first direction is 28°-32°, such as 28°, 29°, 30°, 31°, 32°, etc., with no specific angle limitation. The force generated at the contact point between the driving ramp 222 and the latch 011 can be decomposed into a tangential force along the driving ramp 222 and a radial force perpendicular to the driving ramp 222. Since the radial force causes friction, a smaller angle between the driving ramp 222 and the first direction results in a smaller radial force, thus reducing friction and the force applied manually, facilitating unlocking. During the unlocking process of the latch 011 of the insert / removable part 01, it slides relative to the driving ramp 222 of the unlocking part 22, i.e., the driving ramp 222 exerts a pressing force on the latch 011. The driving ramp 222 is the working ramp of the unlocking piece 2. This design allows the unlocking part 22 to have better mechanical properties, which helps to reduce the unlocking force.

[0041] It should be noted that the angle between the auxiliary inclined plane 223 and the first direction is 83°-87°. For example, 83°, 84°, 85°, 86°, 87°, etc., the specific angle is not limited. The angle between the auxiliary inclined plane 223 and the first direction is 83°-87°, which can be an angle formed between the auxiliary inclined plane 223 and the positive direction of the first direction, or an angle formed between the auxiliary inclined plane 223 and the opposite direction of the first direction. Of course, in some other embodiments, the auxiliary inclined plane 223 can also be perpendicular to the first direction.

[0042] It should be further noted that, in addition to the sharp serrated shape formed by the connection of the aforementioned driving inclined surface 222 and auxiliary inclined surface 223, the unlocking part 22 also has other features such as... Figure 5 As shown, the unlocking part 22 may further include a constant height surface 224, which is connected between the driving inclined surface 222 and the auxiliary inclined surface 223. The dimension of the constant height surface 224 remains unchanged in the second direction, that is, the driving inclined surface 222, the constant height surface 224, and the auxiliary inclined surface 223 are connected to form a sawtooth shape with a platform section. By adding the constant height surface 224, when the latch 011 of the component to be inserted or removed moves to the lowest end of the unlocking part 22, the constant height surface 224 contacts the latch 011, increasing the contact area between the two and making the component to be inserted or removed 01 more stable during the insertion and removal process.

[0043] In some embodiments, the driving inclined surface 222 includes a first arcuate surface 2221 and a second arcuate surface 2222. The first arcuate surface 2221 protrudes toward the side opposite to the clamping hole 11, and the second arcuate surface 2222 protrudes toward the side of the clamping hole 11. The first arcuate surface 2221 and the second arcuate surface 2222 are smoothly connected.

[0044] One possible way to achieve this is, such as Figure 2 and Figure 6 As shown, the driving slope 222 of the unlocking part 22 is a spline curve, including two arc-shaped surfaces, namely the first arc-shaped surface 2221 and the second arc-shaped surface 2222. Initially, the component to be inserted / removed 01 contacts the first arc-shaped surface 2221; later, it contacts the second arc-shaped surface 2222. By rationally designing the arc shape and concave / convex direction of the first and second arc-shaped surfaces 2221 and matching them with the thickness of the latch 011 of the component to be inserted / removed 01, the unlocking force on the component to be inserted / removed 01 can be reduced.

[0045] In some embodiments, along the first direction, the slope of any position in the first arcuate surface 2221 is less than the slope of any position in the second arcuate surface 2222.

[0046] One possible way to achieve this is, such as Figure 2 and Figure 6 As shown, in the initial unlocking stage, the contact angle between the latch 011 of the insertable part 01 and the first arc-shaped surface 2221 is small, thus requiring a smaller surface slope to reduce the unlocking force. In the later unlocking stage, as the latch 011 is compressed downwards, the contact angle between the latch 011 and the second arc-shaped surface 2222 increases, and the slope increases accordingly without increasing the unlocking force. The slope design of the first arc-shaped surface 2221 and the second arc-shaped surface 2222 in this application can reduce the unlocking force on the insertable part 01.

[0047] In some embodiments, the vertical distance between the driving inclined surface 222 and the side surface of the clamping hole 11 facing the unlocking part 22 is 0.8mm-1.2mm.

[0048] One possible way to achieve this is, such as Figure 2 As shown, along the first direction, the vertical distance between the driving inclined surface 222 and the side surface of the clamping hole 11 facing the unlocking part 22 gradually decreases, for example, from 1.2 mm to 0.8 mm. That is to say, this application has designed the tooth height of the sawtooth-like unlocking part 22 to be gradually varied, ensuring that the buckle 011 of the insert / remove part 01 and the driving inclined surface 222 of the unlocking part 22 make progressive contact, which helps to reduce the unlocking force and facilitates the unlocking of the insert / remove part 01.

[0049] In some embodiments, the center distance between any two adjacent unlocking parts 22 is equal to the center distance between any two adjacent clamping holes 11.

[0050] One possible way to achieve this is, such as Figure 2As shown, this application precisely matches the center distance between any two adjacent unlocking parts 22 with the center distance between any two adjacent clamping holes 11, ensuring that the center distances of the two are approximately equal. This configuration improves the insertion and removal accuracy of the insertion and removal fixture, thereby increasing insertion and removal efficiency. For example, the typical value of the center distance between the two is 6.25 mm, but other dimensions can also be designed, depending on the specific circumstances.

[0051] In some embodiments, the maximum vertical distance from the first arcuate surface 2221 to the first reference surface is 0.3 to 5 times the maximum vertical distance from the second arcuate surface 2222 to the second reference surface; wherein, the first reference surface is the plane defined by connecting the start end and the end end of the first arcuate surface 2221, and the second reference surface is the plane defined by connecting the start end and the end end of the second arcuate surface 2222.

[0052] One possible way to achieve this is, such as Figure 6 As shown, the maximum vertical distance from the first arc-shaped surface 2221 to the first reference surface is a, and the maximum vertical distance from the second arc-shaped surface 2222 to the second reference surface is b. a is 0.3 times to 5 times b, for example, 0.3 times, 0.4 times, 0.5 times, 0.6 times, 0.7 times, 0.8 times, 0.9 times, 1 times, 1.5 times, 2 times, 2.5 times, 3 times, 3.5 times, 4 times, 4.5 times, 5 times, etc., and the specific multiple is not limited.

[0053] In some embodiments, the length of the first reference surface along the first direction is 0.3 to 5 times the length of the second reference surface along the first direction.

[0054] One possible way to achieve this is, such as Figure 6 As shown, the length of the first reference surface along the first direction is c, and the length of the second reference surface along the first direction is d. c is 0.3 to 5 times d. According to geometric relationships, Figure 4 In this case, e is 0.3 to 5 times f, for example, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, etc., with no specific multiplier limit.

[0055] This application sets the specific parameter relationship between the first arc-shaped surface 2221 and the second arc-shaped surface 2222, which allows the frictional force generated during the unlocking process to be evenly distributed throughout the process, rather than concentrated in a certain section of the driving inclined surface 222, thereby achieving the advantages of reducing wear on the unlocking piece 2 and the buckle 011 and reducing the unlocking force.

[0056] It should be noted that in this embodiment, the dimensions a and e of the first arc-shaped surface 2221 are both twice the dimensions b and f of the second arc-shaped surface 2222. It can be understood that in similar scenarios, an appropriate ratio between 0.3 and 5 times can be selected based on the thickness and stroke of the latch 011. Of course, different ratios can also be applied to a / b and e / f to optimize the unlocking effect.

[0057] In some embodiments, the insertion and removal fixture further includes a lever assembly 3, which is rotatably connected to the fixture body 1 and is used to drive the driving part 21 of the unlocking piece 2 so that the unlocking piece 2 slides along a first direction.

[0058] One possible way to achieve this is, such as Figures 7-9 As shown, the two insertion / removal fixtures can also be connected side-by-side to accommodate more insertion / removal parts 01. The insertion / removal fixture also includes a lever assembly 3, which is mounted on the fixture body 1 and can rotate relative to it. When unlocking is required, the lever assembly 3 can be manually controlled to drive the driving part 21 of the unlocking piece 2, causing the unlocking piece 2 to slide along a first direction, thereby unlocking the latch 011 of the insertion / removal part 01. By setting the lever assembly 3 to move the unlocking piece 2 so that the unlocking part 22 presses against the latch 011 to unlock, the force required for the user to press the driving part 21 is reduced, making unlocking easier.

[0059] In some embodiments, the lever assembly 3 includes a handle 31 and a pressing part 32 connected to each other. The handle 31 extends along the axial direction of the clamping hole 11, and the pressing part 32 is kinetically connected to the driving part 21 of the unlocking piece 2.

[0060] One possible way to achieve this is, such as Figures 7-9 As shown, during the specific unlocking process, the user can pull the handle 31 to make the pressing part 32 contact and squeeze the driving part 21 of the unlocking piece 2, thereby causing the driving part 21 to drive the entire unlocking piece 2 to move, thus realizing the unlocking process of the buckle 011 of the insertable part 01.

[0061] It should be noted that the insertion / removal fixture of this application is not limited to unlocking LC-type optical fibers. It can be used in any scenario requiring pressing the latch for unlocking. Furthermore, users can further optimize the mechanical properties by altering the position, shape, and other structural features of the serrations in the unlocking part.

[0062] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A insertion / removal fixture for assisting in the insertion and removal of multiple components, characterized in that, Includes the jig body and the unlocking piece; The fixture body includes a plurality of clamping holes arranged along a first direction for clamping the plurality of insertable and removable parts; The unlocking plate is slidably mounted on the fixture body along the first direction. The unlocking plate includes a driving part and a plurality of unlocking parts, and one unlocking part is correspondingly provided with one clamping hole. The unlocking part includes a driving inclined surface, which is inclined toward the direction close to the clamping hole along the first direction. The driving part is used to drive the unlocking part to press the insert / remove part along the second direction; wherein the second direction is perpendicular to the first direction and perpendicular to the axial direction of the clamping hole.

2. The insertion and extraction fixture according to claim 1, characterized in that, Each of the unlocking parts further includes an auxiliary inclined surface, the driving inclined surface is connected to the auxiliary inclined surface, the angle between the driving inclined surface and the first direction is 28°-32°, and the angle between the auxiliary inclined surface and the first direction is 83°-87°.

3. The insertion and extraction fixture according to claim 2, characterized in that, The driving inclined surface includes a first arc-shaped surface and a second arc-shaped surface. The first arc-shaped surface protrudes towards the side opposite to the clamping hole, and the second arc-shaped surface protrudes towards the side of the clamping hole. The first arc-shaped surface and the second arc-shaped surface are smoothly connected.

4. The insertion / removal fixture according to claim 3, characterized in that, Along the first direction, the slope at any position in the first arcuate surface is less than the slope at any position in the second arcuate surface.

5. The insertion and extraction fixture according to claim 2, characterized in that, The vertical distance between the driving inclined surface and the side surface of the clamping hole facing the unlocking part is 0.8mm-1.2mm.

6. The insertion and extraction fixture according to claim 1, characterized in that, The center distance between any two adjacent unlocking parts is equal to the center distance between any two adjacent clamping holes.

7. The insertion / removal fixture according to claim 3, characterized in that, The maximum vertical distance from the first arcuate surface to the first reference surface is 0.3 to 5 times the maximum vertical distance from the second arcuate surface to the second reference surface; wherein, the first reference surface is the plane defined by connecting the start end and the end end of the first arcuate surface, and the second reference surface is the plane defined by connecting the start end and the end end of the second arcuate surface.

8. The insertion and removal fixture according to claim 7, characterized in that, The length of the first reference surface along the first direction is 0.3 to 5 times the length of the second reference surface along the first direction.

9. The insertion and extraction fixture according to claim 1, characterized in that, The insertion and removal fixture also includes a lever assembly, which is rotatably connected to the fixture body and is used to drive the driving part of the unlocking piece so that the unlocking piece slides along the first direction.

10. The insertion and extraction fixture according to claim 9, characterized in that, The lever assembly includes a handle and a pressing part connected to each other. The handle extends along the axial direction of the clamping hole, and the pressing part is kinetically connected to the driving part of the unlocking piece.

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