Fool-proof mechanism and clamp

Abstract

The fool-proof mechanism comprises a fixing seat with a clamping groove, a clamping block, a pushing assembly and a lock catch assembly, the fixing seat is fixed on a base plate of the clamp, a first clamping hook of the clamping block and a first clamping hook of the lock catch assembly are respectively arranged on a turning cover of the clamp, the pushing assembly is movably arranged on the turning cover, and a second clamping hook of the clamping block is arranged on the turning cover. The second clamping hook of the lock catch assembly is arranged on the pushing assembly, the pushing assembly pushes the clamping block to move into the clamping groove of the fixing base by moving, meanwhile, the pushing assembly drives the second clamping hook to move to be buckled with the first clamping hook to lock the clamping block in the clamping groove, and therefore the turning cover is locked on the base plate. The fool-proof mechanism can prevent an operator from mistakenly touching an opening and closing assembly of the clamp to cause the clamp to be opened in the clamp taking and placing process, and reduces the risk that a tested product in the clamp falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture undercut devices, in particular to a fool-proof mechanism and a clamp. Background Art

[0002] At present, some electronic products in the electronics industry need to be fixed in a fixture during the production process and need to be turned upside down in the test instrument during the test process. After the product under test is fixed in the fixture, the operator needs to hold the support blocks on both sides of the fixture and manually place the fixture into the test instrument. The opening and closing components on the fixture are close to the support blocks, and the operator may accidentally touch the opening and closing components during the process of picking and placing, causing the fixture to be accidentally opened during the process of picking and placing, and the product under test may easily fall from the fixture, thereby damaging the product under test. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides an anti-fool mechanism and a clamp, which can avoid the clamp from opening due to accidental touching of the clamp and reduce the risk of the tested product falling off in the clamp.

[0004] In a first aspect, the utility model provides an anti-mistake mechanism, the anti-mistake mechanism comprising:

[0005] A fixing seat, comprising a slot with a lateral opening, wherein the fixing seat is fixed on a base plate of the fixture;

[0006] A clamping block is arranged on a side of the flip cover facing the fixing seat, and the flip cover is hinged to the base plate;

[0007] A pushing component is movably arranged on the flip cover, and the pushing component is arranged corresponding to the card block;

[0008] A lock assembly, comprising a first hook and a second hook, wherein the first hook is arranged on the flip cover, and the second hook is arranged on the pushing assembly;

[0009] The pushing component pushes the card block to move into the card slot by moving, and at the same time, the pushing component drives the second card hook to engage with the first card hook to lock the card block in the card slot.

[0010] Furthermore, the fool-proof mechanism further comprises:

[0011] A fixed block, fixed on a side of the flip cover facing the fixed seat, the fixed block having a mounting groove, the card block being movably arranged in the mounting groove, and the pushing component pushing the card block to move out of the mounting groove into the card groove;

[0012] The first resetting member is arranged in the installation groove, and the two ends of the first resetting member are respectively connected to the side wall of the installation groove and the clamping block, and the first resetting member pushes the clamping block to move from the clamping groove to the installation groove.

[0013] Further, the mounting groove comprises a first opening and a second opening which are arranged opposite to each other, and the width of the first opening and the second opening is smaller than the width of the mounting groove;

[0014] The block includes a head end, a tail end and a wing portion, the head end and the tail end are controlled to extend out of the mounting groove from the first opening and the second opening respectively, the wing portion is connected to a middle position between the head end and the tail end and is vertically arranged with the head end and the tail end, and the two ends of the first reset member are respectively connected to the side walls of the mounting groove and the wing portion.

[0015] Furthermore, the second hook includes a main body, a hook body and a connecting part, the hook body and the connecting part are respectively arranged at two ends of the main body and extend toward the same side, the main body is rotatably connected to the pushing assembly through a rotating shaft, and the second hook is engaged or opened with the first hook through the rotation of the rotating shaft.

[0016] Furthermore, the fool-proofing mechanism also includes a second reset member connected between the pushing assembly and the connecting portion, and the second reset member is used to drive the second hook to reset after rotation.

[0017] Furthermore, the fool-proof mechanism further comprises:

[0018] A plurality of third reset members, arranged between the pushing assembly and the flip cover, the third reset members being used to push the pushing assembly to reset;

[0019] A plurality of guide posts are fixed on the flip cover, the pushing assembly has a plurality of guide holes, and the pushing assembly is slidably connected with the guide posts through the guide holes.

[0020] Furthermore, the pushing component comprises:

[0021] A pre-pressing block, located on a side of the flip cover facing away from the fixing seat;

[0022] An oblique pressure block is arranged in the moving channel of the flip cover, and the top of the oblique pressure block is fixedly connected to the pre-pressure block;

[0023] The pre-pressing block drives the oblique pressing block to press downward, and the oblique pressing block pushes the clamping block to move toward the clamping slot.

[0024] Furthermore, a first guiding slope is provided at the bottom end of the inclined pressure block, and a second guiding slope is provided at the tail end of the clamping block. When the inclined pressure block is pressed downward, the first guiding slope cooperates with the second guiding slope to push the clamping block toward the clamping slot.

[0025] In a second aspect, the utility model further provides a clamp, the clamp comprising:

[0026] substrate;

[0027] A flip cover, hinged on the base plate;

[0028] An opening and closing assembly is arranged on the base plate, and the flip cover and the base plate are buckled together through the opening and closing assembly;

[0029] As in the anti-foolproof mechanism described in the first aspect, the fixed seat is fixed on the base plate, the card block and the pushing component are respectively arranged on the flip cover, and the pushing component pushes the card block to move into the card slot by moving, and at the same time, the pushing component drives the second card hook to move and engage with the first card hook to lock the card block in the card slot to lock the flip cover and the base plate.

[0030] Furthermore, the fixture further comprises:

[0031] A transfer PCB board is fixed on the flip cover;

[0032] The probe assembly and the floating block are respectively connected to two sides of the transfer PCB board;

[0033] Wherein, the pushing assembly is connected above the floating block through a floating screw and a floating spring.

[0034] The embodiment of the utility model provides a foolproof mechanism and a fixture, the foolproof mechanism includes a fixed seat with a slot, a card block, a pushing component and a locking component, the fixed seat is fixed on the base of the fixture, the first hooks of the card block and the locking component are respectively arranged on the flip cover of the fixture, the pushing component is movably arranged on the flip cover, the second hook of the locking component is arranged on the pushing component, the pushing component pushes the card block to move into the slot of the fixed seat by moving, and at the same time the pushing component drives the second hook to move and engage with the first hook to lock the card block in the slot, thereby locking the flip cover on the base. The foolproof mechanism can prevent the operator from accidentally touching the opening and closing component of the fixture itself during the process of taking and placing the fixture, causing the fixture to be opened, and reduce the risk of the tested product in the fixture falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0036] Figure 1 This is a schematic structural diagram of the clamp in a closed state according to an embodiment of the utility model;

[0037] Figure 2 This is a schematic structural diagram of the clamp in an open state according to an embodiment of the utility model;

[0038] Figure 3 It is a partial cross-sectional view of the unlocked state of the fool-proof mechanism of the embodiment of the utility model;

[0039] Figure 4 It is a partial cross-sectional view of the locking state of the anti-fool mechanism of the embodiment of the utility model;

[0040] Figure 5 It is a structural schematic diagram of a fixing block of an embodiment of the utility model;

[0041] Figure 6 This is a schematic diagram of the structure of a card block in an embodiment of the utility model;

[0042] Figure 7 It is a structural schematic diagram of the relative positions of the oblique pressure block, the clamping block, the fixing block and the first resetting member in an embodiment of the utility model;

[0043] Figure 8 It is a schematic diagram of the structure in which the transfer PCB board and the floating block are arranged on the flip cover in the embodiment of the utility model;

[0044] Fig. 9 It is a structural schematic diagram of a lock assembly according to an embodiment of the utility model.

[0045] Reference numerals:

[0046] 1-fixed seat; 11-card slot; 2-card block; 21-head end; 22-tail end; 221-second guide slope; 23-wing; 3-pushing assembly; 31-pre-pressure block; 32-oblique pressure block; 321-first guide slope; 4-locking assembly; 41-first hook; 42-second hook; 421-main body; 422-hook body; 423-connecting part; 43-rotating shaft; 5-fixed block; 51-installation slot; 52-first opening; 53-second opening; 6-first reset member; 7-second reset member; 8-third reset member; 9-guide column; 101-base plate; 102-flip cover; 103-moving channel; 104-opening and closing assembly; 105-adapter PCB board; 106-probe assembly; 107-floating block; 108-floating screw; 109-floating spring. DETAILED DESCRIPTION

[0047] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0048] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0049] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0051] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0052] Figure 1-Figure 4 The schematic diagram of the structure of the anti-fool mechanism installed on the fixture. The fixture includes a base plate 101, a flip cover 102 and an opening and closing component 104. One side of the flip cover 102 is hinged to the base plate 101, and the opening and closing component 104 is arranged on the side of the base plate 101 away from the hinge position. Figure 1 and Figure 2 When the flip cover 102 is flipped over to be closed with the base plate 101 , the flip cover 102 and the base plate 101 can be buckled together by the opening and closing assembly 104 .

[0053] Since the opening and closing assembly 104 is pressed on the flip cover 102 after being rotated by the buckle, the flip cover 102 and the base plate 101 are connected together. The opening and closing assembly 104 is close to the support block on the base plate 101. When the operator moves the fixture, the opening and closing assembly 104 may be accidentally touched, causing the flip cover 102 and the base plate 101 to be accidentally opened, which causes the product under test or the movable carrier in the fixture to fall out of the fixture when the fixture is buckled onto the test instrument, thereby causing damage to the product under test or the movable carrier.

[0054] Since the above-mentioned opening and closing component 104 is easy to be opened by mistake, an anti-fool mechanism can be provided on the fixture. After the flip cover 102 and the base plate 101 are buckled together by the opening and closing component 104, the flip cover 102 and the base plate 101 can be fixed together by controlling the anti-fool mechanism to lock. At this time, when the opening and closing component 104 is opened, the flip cover 102 and the base plate 101 will not be opened; only when the anti-fool mechanism is controlled to open, the opening and closing component 104 can be opened to open the flip cover 102 and the base plate 101. Therefore, the anti-fool mechanism is provided on the fixture, which can avoid the accidental opening of the fixture when the opening and closing component is accidentally touched, reduce the occurrence of the tested product and the movable carrier falling off, and improve the safety of use.

[0055] like Figure 3 and Figure 4 As shown, the foolproof mechanism includes a fixing seat 1, a card block 2, a pushing assembly 3 and a locking assembly 4. The fixing seat 1 is fixed on the substrate 101, and the fixing seat 1 is provided with a card slot 11, such as Figure 2 As shown. The card block 2 is arranged on the side of the flip cover 102 facing the fixed seat 1. That is, the fixed seat 1 and the card block 2 are respectively arranged on the side where the base plate 101 and the flip cover 102 are arranged opposite to each other when closed. The pushing component 3 is arranged on the flip cover 102, and one end of the pushing component 3 is arranged corresponding to the card block 2. When the flip cover 102 and the base plate 101 are closed, the card block 2 is arranged opposite to the card slot 11, as shown in FIG. Figure 3 As shown. At this time, the operator can control the push component 3 to move the card block 2 toward the card slot 11. When the card block 2 moves into the card slot 11, the lock component 4 can lock the push component 3 at this time, thereby locking the card block 2 in the card slot 11, and preventing the card block 2 from moving out of the card slot 11. Therefore, when the anti-foolproof mechanism is locked, the opening and closing component 104 is opened, and the clamp will not be opened; when the lock component 4 is unlocked, the push component 3 and the card block 2 are reset, and the card block 2 moves out of the card slot 11, and the clamp can be opened.

[0056] The fixing seat 1 can be fixed on the base plate 101 by bolts, or can be arranged on the base plate 101 by welding or the like. The clamping slot 11 of the fixing seat 1 has a lateral opening, and the lateral opening is arranged on a side facing the clamping block 2 .

[0057] The card block 2 can be movably arranged on the side of the flip cover 102 facing the fixed seat 1. When the flip cover 102 and the base plate 101 are closed, the card block 2 is located on the side of the lateral opening of the card slot 11 and is arranged opposite to the card slot 11. Figure 3 The card block 2 can be pushed by the pushing assembly 3 to move toward the card slot 11 .

[0058] Among them, the foolproof mechanism also includes a fixing block 5, such as Figure 3 , Figure 4 and Figure 7 The fixing block 5 can be fixed to the side of the flip cover 102 facing the fixing base 1 by bolts. The fixing block 5 has a mounting groove 51, such as Figure 5 The block 2 can be movably arranged in the mounting groove 51 .

[0059] When the flip cover 102 and the base plate 101 are closed, the fixing block 5 is located at one side of the fixing base 1 , and the mounting groove 51 is arranged opposite to the card groove 11 , so that the pushing component 3 can push the card block 2 to move from the mounting groove 51 to the card groove 11 .

[0060] The foolproof mechanism also includes a first reset member 6, such as Figure 7 As shown. The first reset member 6 is disposed in the mounting groove 51, and the two ends of the first reset member 6 are respectively connected to the side wall of the mounting groove 51 and the block 2. When the lock assembly 4 is unlocked, the first reset member 6 can push the block 2 to move in the opposite direction from the block 11 to the mounting groove 51. In this embodiment, the first reset member 6 is a spring.

[0061] In one embodiment, the mounting groove 51 includes a first opening 52 and a second opening 53 that are arranged opposite to each other, and the widths of the first opening 52 and the second opening 53 are smaller than the width of the mounting groove 51. Figure 5 The block 2 includes a head end 21, a tail end 22 and a wing 23. The wing 23 is connected to the middle of the head end 21 and the tail end 22 and is vertically arranged with the head end 21 and the tail end 22. Figure 6 shown.

[0062] The width of the head end 21 is less than or equal to the width of the first opening 52, and the width of the tail end 22 is less than or equal to the width of the second opening 53. When the card block 2 is placed in the installation groove 51, the head end 21 is arranged opposite to the first opening 52, and the tail end 22 is arranged opposite to the second opening 53. The head end 21 and the tail end 22 are controlled to extend out of the installation groove 51 from the first opening 52 and the second opening 53 respectively. Among them, the width of the position where the wing portion 23 of the card block 2 is located is basically consistent with the width of the installation groove 51, so that the card block 2 will not be offset and rotated during the movement in the installation groove 51, which can ensure that the head end 21 can extend from the first opening 52 and the tail end 22 can extend from the second opening 53, thereby ensuring the reliability of foolproofing. At the same time, the width of the position where the wing portion 23 of the card block 2 is located is basically consistent with the width of the installation groove 51, which can limit the card block 2 in the installation groove 51 and prevent the card block 2 from falling out of the installation groove 51 by moving.

[0063] The first restoring member 6 is connected between the side wall of the mounting groove 51 and the wing portion 23. Figure 7 As shown. Preferably, the two ends of the first reset member 6 are fixedly connected to the side wall and the wing 23 of the installation groove 51 respectively. When the lock assembly 4 is unlocked, the first reset member 6 can push the card block 2 to reset. In this embodiment, after the card block 2 is reset, the tail end 22 of the card block 2 extends from the second opening 53 to the outside of the installation groove 51, and the head end 21 of the card block 2 extends from the card groove 11 and moves back from the first opening 52 into the installation groove 51.

[0064] In one embodiment, the first opening 52 and the second opening 53 are located at the center of the mounting groove 51 along the width direction. The block 2 includes two wings 23, which are vertically arranged on both sides of the connection between the head end 21 and the tail end 22, so that the block 2 forms a cross-shaped structure. A first reset member 6 is respectively arranged between the two wings 23 and the inner wall of the mounting groove 51 on both sides of the first opening 52 to ensure the reliability of reset and the stability of the movement of the block 2.

[0065] The push component 3 is movably arranged on the flip cover 102, and one end of the push component 3 is arranged corresponding to the tail end 22 of the card block 2. The moving direction of the push component 3 is perpendicular to the moving direction of the card block 2. When the push component 3 moves longitudinally, it can push the card block 2 to move horizontally into the card slot 11.

[0066] The pushing assembly 3 includes a pre-pressing block 31 and an oblique pressing block 32. Figure 3 and Figure 4As shown. The pre-pressing block 31 is movably arranged on the side of the flip cover 102 facing away from the fixed seat 1. The oblique pressing block 32 is arranged in the moving channel 103 of the flip cover 102, and its two ends extend from the two ends of the moving channel 103. The top of the oblique pressing block 32 is fixedly connected to the pre-pressing block 31, and the bottom of the oblique pressing block 32 is laterally contacted and connected with the tail end 22 of the block 2. The pre-pressing block 31 can move to push the oblique pressing block 32 to move downward, and at this time, the bottom of the oblique pressing block 32 pushes the block 2 to move toward the card slot 11.

[0067] In this embodiment, the bottom end of the inclined pressure block 32 is provided with a first guiding inclined surface 321, and the tail end 22 of the clamping block 2 is provided with a second guiding inclined surface 221. Figure 6 and Figure 7 As shown, the first guide slope 321 is in contact with the second guide slope 221. When the pre-pressing block 31 moves downward in a controlled manner, the oblique pressing block 32 is pushed downward, and the oblique pressing block 32 pushes the clamping block 2 toward the clamping slot 11 through the cooperation of the first guide slope 321 and the second guide slope 221.

[0068] The foolproof mechanism further includes a plurality of third reset members 8 and a plurality of guide posts 9, such as Figure 8 A plurality of third reset members 8 are arranged between the push assembly 3 and the flip cover 102, that is, a plurality of third reset members 8 are arranged between the pre-pressing block 31 and the flip cover 102, as shown in FIG. Figure 1 and Figure 4 After the lock assembly 4 is unlocked, the plurality of third reset members 8 are used to push the push assembly 3 to reset, and then the clamping block 2 is reset through the first reset member 6 .

[0069] A plurality of guide posts 9 are fixed on the flip cover 102, and a plurality of guide holes are provided at corresponding positions of the push component 3 (i.e., the pre-pressing block 31). The push component 3 is slidably connected to the guide posts 9 through the guide holes. The push component 3 can be guided and moved by the guide posts 9.

[0070] In one embodiment, the pre-pressing block 31 includes two superimposed pressing blocks, which are fixedly connected by bolts, wherein a guide cylinder is arranged between the two pressing blocks, the guide cylinder is located between the guide holes, and the guide column 9 can move in the guide cylinder.

[0071] The lock assembly 4 includes a first hook 41 and a second hook 42. Fig. 9As shown. The first hook 41 is arranged on the flip cover 102, and the second hook 42 is arranged on the pushing component 3 (that is, the pre-pressing block 31), and the first hook 41 and the second hook 42 are arranged opposite to each other. When the pushing component 3 moves and pushes the card block 2 to move into the card slot 11, the pushing component 3 simultaneously drives the second hook 42 to move and engage with the first hook 41, thereby locking the pushing component 3 in the moved position, thereby locking the card block 2 in the card slot 11. When the operator operates to release the engagement of the first hook 41 and the second hook 42, the third reset member 8 pushes the pushing component 3 to reset, and the first reset member 6 pushes the card block 2 out of the card slot 11 to reset. In other words, when the second hook 42 is engaged and locked with the first hook 41, the opening and closing component is accidentally opened, and the inverted clamp will not be opened due to gravity, thereby preventing the tested product inside from falling.

[0072] The second hook 42 includes a main body 421, a hook body 422 and a connecting portion 423. Fig. 9 As shown. The hook body 422 and the connecting portion 423 are respectively arranged at both ends of the main body 421 and extend toward the same side. The main body 421 is rotatably connected to one side of the pre-pressing block 31 of the pushing assembly 3 through the rotating shaft 43, and the connecting portion 423 and the hook body 422 are respectively extended to the upper and lower sides of the pre-pressing block 31. A hook is protruded laterally on the top of the first hook 41, and the protruding direction of the hook is opposite to that of the hook body 422. During the movement, the second hook 42 can be engaged or opened with the first hook 41 by rotating around the rotating shaft 43.

[0073] In this embodiment, the foolproof mechanism further includes a second reset member 7 connected between the push assembly 3 (ie, the pre-pressing block 31) and the connecting portion 423. Figure 1 and Fig. 9 As shown. The second reset member 7 is used to drive the second hook 42 to reset after rotation. Specifically, during the downward movement of the second hook 42, the second hook 42 can be pushed to rotate by abutting against the top of the first hook 41 (it can also be rotated by the operator), and then the second hook 42 can continue to move downward until the hook body 422 is located below the hook. Under the action of the second reset member 7, the second hook 42 is reversely rotated and reset to engage with the first hook 41. When the second hook 42 is disengaged from the first hook 41, the operator can manually press the connecting portion 423 to rotate the second hook 42 and disengage from the first hook 41, and the third reset member 8 pushes the push assembly 3 to reset.

[0074] Furthermore, the fixture further includes a transfer PCB board 105, a probe assembly 106 and a floating block 107. Figure 2 and Figure 8As shown. The flip cover 102 has a window. The transfer PCB board 105 is located above the window, and both sides of the transfer PCB board 105 are fixedly connected to the flip cover 102. The probe assembly 106 is connected to the side of the transfer PCB board 105 facing the substrate 101. The floating block 107 is located in the window, and the floating block 107 is connected to the top of the transfer PCB board 105 (i.e., the side facing away from the substrate 101). The pre-pressing block 31 of the pushing assembly 3 is connected to the top of the floating block 107 through the floating screw 108 and the floating spring 109.

[0075] When the pushing assembly 3 moves downward to push the card block 2 into the card slot 11 , the pre-pressing block 31 presses the probe assembly 106 downward to electrically contact the product under test inside the fixture, thereby electrically connecting the product under test to the transfer PCB board 105 .

[0076] In this embodiment, the movable carrier and the product to be tested are placed on the base plate 101 of the fixture, the flip cover 102 is flipped over and closed with the base plate 101, and then the pre-pressing block 31 is pressed down, and the oblique pressing block 32 is pressed down together. The pressing down of the oblique pressing block 32 pushes the card block 2 to move toward the card slot 11, and the card block 2 is embedded in the card slot 11. The second hook 42 is synchronously lowered and engaged with the first hook 41, thereby locking the card block 2 in the card slot 11. The fixture is placed upside down in the test instrument for testing, and the fixture is taken out of the test instrument after the test is completed. Then the first hook 41 and the second hook 42 are unlocked, the pre-pressing block 31, the oblique pressing block 32 and the card block 2 are reset and unlocked, and the flip cover 102 is opened to take out the product to be tested and the movable carrier.

[0077] The foolproof mechanism of this embodiment can prevent the operator from accidentally touching the opening and closing components of the fixture itself during the process of taking and placing the fixture, thereby preventing the fixture from being opened, thereby reducing the risk of the product being tested in the fixture falling off.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A foolproof mechanism, characterized in that: The fool-proof mechanism comprises: A fixing seat (1) comprising a slot (11) having a lateral opening, wherein the fixing seat (1) is fixed on a base plate (101) of a clamp; A clamping block (2) is arranged on a side of the flip cover (102) facing the fixing seat (1), and the flip cover (102) is hinged to the base plate (101); A pushing component (3) is movably arranged on the flip cover (102), and the pushing component (3) is arranged corresponding to the card block (2); A lock assembly (4), comprising a first hook (41) and a second hook (42), wherein the first hook (41) is arranged on the flip cover (102), and the second hook (42) is arranged on the pushing assembly (3); The pushing component (3) pushes the card block (2) to move into the card slot (11), and at the same time, the pushing component (3) drives the second card hook (42) to engage with the first card hook (41) to lock the card block (2) in the card slot (11).

2. The foolproof mechanism according to claim 1, characterized in that: The fool-proof mechanism also includes: A fixed block (5) is fixed on a side of the flip cover (102) facing the fixed seat (1), the fixed block (5) having a mounting groove (51), the card block (2) being movably arranged in the mounting groove (51), and the pushing component (3) pushing the card block (2) to move out of the mounting groove (51) into the card groove (11); A first resetting member (6) is arranged in the installation groove (51), and two ends of the first resetting member (6) are respectively connected to the side wall of the installation groove (51) and the clamping block (2), and the first resetting member (6) pushes the clamping block (2) to move from the clamping groove (11) to the installation groove (51) to reset.

3. The foolproof mechanism according to claim 2, characterized in that: The mounting groove (51) comprises a first opening (52) and a second opening (53) which are arranged opposite to each other, and the widths of the first opening (52) and the second opening (53) are smaller than the width of the mounting groove (51); The block (2) comprises a head end (21), a tail end (22) and a wing (23); the head end (21) and the tail end (22) are controlled to extend out of the mounting groove (51) from the first opening (52) and the second opening (53) respectively; the wing (23) is connected to a middle position between the head end (21) and the tail end (22) and is vertically arranged with the head end (21) and the tail end (22); and the two ends of the first reset member (6) are respectively connected to the side walls of the mounting groove (51) and the wing (23).

4. The foolproof mechanism according to claim 1, characterized in that: The second hook (42) comprises a main body (421), a hook body (422) and a connecting portion (423); the hook body (422) and the connecting portion (423) are respectively arranged at two ends of the main body (421) and extend toward the same side; the main body (421) is rotatably connected to the pushing assembly (3) via a rotating shaft (43); the second hook (42) is rotatably engaged with or opened by the first hook (41) via the rotating shaft (43).

5. The foolproof mechanism according to claim 4, characterized in that: The foolproof mechanism further comprises a second reset member (7) connected between the pushing assembly (3) and the connecting portion (423), wherein the second reset member (7) is used to drive the second hook (42) to reset after rotation.

6. The foolproof mechanism according to claim 1, characterized in that: The fool-proof mechanism also includes: a plurality of third reset members (8), arranged between the pushing assembly (3) and the flip cover (102), the third reset members (8) being used to push the pushing assembly (3) to reset; A plurality of guide columns (9) are fixed on the flip cover (102); the pushing component (3) has a plurality of guide holes; and the pushing component (3) is slidably connected to the guide columns (9) through the guide holes.

7. The foolproof mechanism according to claim 1, characterized in that: The pushing component (3) comprises: A pre-pressing block (31) is located on a side of the flip cover (102) facing away from the fixing seat (1); An oblique pressure block (32) is arranged to penetrate the moving channel (103) of the flip cover (102), and the top end of the oblique pressure block (32) is fixedly connected to the pre-pressure block (31); The pre-pressing block (31) drives the oblique pressing block (32) to press downward, and the oblique pressing block (32) pushes the clamping block (2) to move toward the clamping slot (11).

8. The foolproof mechanism according to claim 7, characterized in that: The bottom end of the inclined pressure block (32) is provided with a first guiding inclined surface (321), and the tail end (22) of the clamping block (2) is provided with a second guiding inclined surface (221); when the inclined pressure block (32) is pressed downward, the first guiding inclined surface (321) cooperates with the second guiding inclined surface (221) to push the clamping block (2) toward the clamping slot (11).

9. A clamp, characterized in that: The fixture comprises: substrate(101); A flip cover (102) is hinged on the base plate (101); An opening and closing component (104) is arranged on the base plate (101), and the flip cover (102) and the base plate (101) are buckled together through the opening and closing component (104); According to the fool-proof mechanism as described in any one of claims 1 to 8, the fixing seat (1) is fixed on the base plate (101), the card block (2) and the pushing component (3) are respectively arranged on the flip cover (102), and the pushing component (3) pushes the card block (2) to move into the card slot (11) by moving, and at the same time, the pushing component (3) drives the second card hook (42) to move and engage with the first card hook (41) to lock the card block (2) in the card slot (11) to lock the flip cover (102) and the base plate (101).

10. The clamp according to claim 9, characterized in that The fixture also includes: A transfer PCB board (105) fixed on the flip cover (102); The probe assembly (106) and the floating block (107) are respectively connected to two sides of the transfer PCB board (105); Wherein, the pushing assembly (3) is connected above the floating block (107) via a floating screw (108) and a floating spring (109).

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