An electrical control panel testing mechanism that is easy to connect

Abstract

The present invention discloses an electrical control board testing mechanism that is easy to connect, and relates to the technical field of electrical control board testing. The electrical control board testing mechanism that is easy to connect comprises a conveyor and a testing machine arranged on the top of a base plate, wherein the conveyor comprises a conveyor belt, and the testing machine comprises two symmetrically arranged connecting heads, the top of the base plate is connected to a first moving block through a lifting module, and the bottom of the first moving block is connected to a second moving block through a first telescopic mechanism, and the bottom of the second moving block is fixedly connected to an L-shaped plate. The electrical control board testing mechanism that is easy to connect makes the connection between the interface and the connecting head more convenient and quick, and at the same time, can form a shaking effect on the electrical control board body, can avoid the situation where the interface and the connecting head have poor contact, and when the connecting head is damaged, it is convenient to replace another connecting head for connection testing, thereby improving the efficiency and accuracy of the test.

Description

Technical Field

[0001] The invention relates to the technical field of electric control board testing, in particular to an electric control board testing mechanism that is easy to connect. Background Art

[0002] Electrical control board testing organizations are organizations that are specifically responsible for testing, analyzing, and verifying electrical control boards. These organizations usually have advanced testing equipment, professional technical teams, and complete testing processes, and can provide customers with comprehensive and accurate testing services. The testing machine is equipped with a connector for connecting the test interface on the electrical control board.

[0003] However, when using the existing electrical control board testing mechanism, it is necessary to manually connect the connector to the interface, which is not convenient and quick enough and affects the efficiency of the test. At the same time, after long-term use, the connection between the connector and the interface is prone to poor contact, which not only affects the accuracy of the test results, but also affects the efficiency of the test. Summary of the invention

[0004] The object of the present invention is to provide an electrical control board testing mechanism that is easy to connect, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrical control board testing mechanism that is easy to connect, comprising a conveyor and a testing machine arranged on the top of a base plate, the conveyor comprising a conveyor belt, and the testing machine comprising two symmetrically arranged connecting heads, the top of the base plate is connected to a first moving block through a lifting module, and the bottom of the first moving block is connected to a second moving block through a first telescopic mechanism, the bottom of the second moving block is fixedly connected to an L-shaped plate, and the bottom of the L-shaped plate is rotatably connected to a rotating plate through a rotating mechanism, the connecting head is detachably connected to the bottom of the rotating plate, a clamping mechanism for centering the electrical control board body is provided on the top of the base plate, and the movement of the electrical control board body is driven by a pushing mechanism.

[0006] Preferably, the rotating mechanism comprises a motor fixedly connected to the top of the L-shaped plate, the output end of the motor is fixedly connected to a rotating shaft, and the lower end of the rotating shaft is fixed to the top of the rotating plate.

[0007] Preferably, the first telescopic mechanism includes two symmetrically arranged first sets of rods fixedly connected to the bottom of the first moving block, and the side walls of the first sets of rods are sleeved with first sleeves, the lower ends of the first sleeves are fixed to the top of the second moving block, and the side walls of each first sleeve are sleeved with a first spring.

[0008] Preferably, the clamping mechanism includes two symmetrically arranged support plates fixedly connected to the top of the base plate, and the opposite side walls of the two support plates are connected to two symmetrically arranged V-shaped plates through a first reset mechanism, and the movement of the V-shaped plates is driven by a pushing assembly.

[0009] Preferably, the first reset mechanism comprises two symmetrically arranged first T-shaped guide rods fixedly connected to the side walls of each V-shaped plate, the support plate is sleeved on the side walls of the first T-shaped guide rods, and the side walls of each first T-shaped guide rod are sleeved with a second spring.

[0010] Preferably, the pushing assembly includes a third moving block, and the third moving block is connected to the bottom of the first moving block through a second reset mechanism, the bottom of the third moving block is connected to a moving plate through a second telescopic mechanism, and the side walls of the moving plate are fixedly connected to two symmetrically arranged inclined plates, the top of each V-shaped plate is fixedly connected to a pushing rod, and the upper end of the pushing rod can slide on the bottom of the inclined plate.

[0011] Preferably, the second reset mechanism includes two symmetrically arranged second T-shaped guide rods fixedly connected to the side walls of the third moving block, and the side walls of the second T-shaped guide rods are sleeved with connecting blocks, the connecting blocks are fixed to the bottom of the first moving block, and the side walls of each second T-shaped guide rod are sleeved with a third spring.

[0012] Preferably, the second telescopic mechanism includes two symmetrically arranged second sleeves fixedly connected to the bottom of the third moving block, and a second sleeve rod is inserted into the second sleeve, the lower end of the second sleeve rod is fixed to the top of the moving plate, and the side wall of each second sleeve is sleeved with a fourth spring.

[0013] Preferably, the pushing mechanism includes a mounting plate fixedly connected to the top of the movable plate, and the side walls of the mounting plate are fixedly connected with a plurality of triangular bars arranged in an array, an L-shaped block is connected between the first movable block and the second movable block through a movable mechanism, the side walls of the L-shaped block are fixedly connected with a pushing pin, and the pushing pin can slide on the side walls of the triangular bar.

[0014] Preferably, the moving mechanism includes a U-shaped block fixedly connected to the side wall of the L-shaped block, and the side wall of the U-shaped block is rotatably connected to two symmetrically arranged connecting rods through a rotating pin, wherein the other end of one of the connecting rods is rotatably connected to the bottom of the first moving block, and the other end of the other connecting rod is rotatably connected to the side wall of the second moving block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This kind of electrical control board testing mechanism that is easy to connect is provided with a clamping mechanism, etc., so that when conducting a test, the electrical control board body is placed on a conveyor belt for transportation. When it reaches the test position, the first moving block is driven downward by the lifting module, and at the same time, the third moving block is driven downward by the second reset mechanism, and the moving plate is driven downward by the second telescopic mechanism, so that the upper end of the push rod is against the bottom of the inclined plate and slides upward along the bottom of the inclined plate, thereby pushing the two V-shaped plates to move closer to each other, and at the same time, the second spring is compressed. When the two V-shaped plates move closer to each other, the electrical control board body can be clamped in the center, and when the first moving block continues to move downward, the fourth spring is continuously compressed, and at the same time When the test is completed, the second moving block and the L-shaped plate are driven downward by the first telescopic mechanism, and the rotating plate and the connecting head are driven downward synchronously, so that the connecting head is inserted into the interface, making the connection between the interface and the connecting head more convenient and quick. After the connection is completed, the electrical control board body can be tested. After the test is completed, the connecting head is moved upward and pulled out from the interface, so that the tested electrical control board body is transported forward, and another electrical control board body is transported to the test position, thereby improving the test efficiency. By setting a pushing mechanism, etc., after the connecting head is inserted into the interface, if the test machine shows that the circuit is not connected, the first moving block can be moved downward continuously through the lifting module. At this time, the first spring is gradually compressed, and at the same time, The two connecting rods rotate, thereby causing the U-shaped block to move in the direction close to the mounting plate. When the U-shaped block moves, the pushing pin is driven to move by the L-shaped block. When the pushing pin abuts against the side wall of the triangular bar, the third moving block is pushed to move in the direction close to the connecting block. At the same time, the third spring is compressed. When the pushing pin passes over the side wall of the triangular bar, the third moving block can move and reset under the action of the third spring. This reciprocating process can make the third moving block move back and forth, and drive the moving plate and the inclined plate to move back and forth through the second telescopic mechanism, so that the two V-shaped plates can be pushed to move through the pushing rod, and then the electrical control board body can be driven to move back and forth, so that the electrical control board body forms a shaking effect, which can avoid To avoid the situation of poor contact between the interface and the connector, the connection is more convenient and quick, ensuring the efficiency and effect of the connection, and then ensuring the efficiency of the test. By setting a rotating mechanism, after the electrical control board body moves back and forth, if the test machine still shows that the circuit is blocked, at this time, the connector is pulled out from the interface through the lifting module, and then the motor is started. The rotation of the motor drives the rotation of the shaft and the rotating plate, so that the rotating plate rotates 180 degrees, thereby replacing another new connector, and then, the replaced connector is inserted into the interface through the lifting module. If the display is normal, it means that the previous connector is damaged and needs to be replaced. If it still shows that the circuit is blocked, it means that there is a fault in the electrical control board body, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0019] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0022] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at D in the middle;

[0023] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at E in the middle.

[0024] In the figure: 1, bottom plate; 2, rotating mechanism; 201, motor; 202, rotating shaft; 3, first telescopic mechanism; 301, first set of rods; 302, first sleeve; 303, first spring; 4, clamping mechanism; 401, support plate; 402, V-shaped plate; 5, pushing assembly; 501, third moving block; 502, moving plate; 503, inclined plate; 504, pushing rod; 6, second reset mechanism; 601, second T-shaped guide rod; 602, connecting block; 603, third spring; 7, first reset mechanism; 701, first T-shaped guide rod; 702, second spring; 8, first Two telescopic mechanisms; 801, second sleeve; 802, second set of rods; 803, fourth spring; 9, pushing mechanism; 901, mounting plate; 902, triangle bar; 903, L-shaped block; 904, pushing pin; 10, moving mechanism; 1001, U-shaped block; 1002, rotating pin; 1003, connecting rod; 11, conveyor; 1101, conveyor belt; 12, testing machine; 1201, connector; 13, electrical control board body; 1301, interface; 14, first moving block; 15, second moving block; 16, L-shaped plate; 17, rotating plate; 18, lifting module. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 7 The present invention provides a technical solution: an electrical control board testing mechanism that is easy to connect, comprising a conveyor 11 and a testing machine 12 arranged on the top of a bottom plate 1, the conveyor 11 comprising a conveyor belt 1101, and the testing machine 12 comprising two symmetrically arranged connecting heads 1201, the top of the bottom plate 1 is connected to a first moving block 14 through a lifting module 18, and the bottom of the first moving block 14 is connected to a second moving block 15 through a first telescopic mechanism 3, the bottom of the second moving block 15 is fixedly connected to an L-shaped plate 16, and the bottom of the L-shaped plate 16 is rotatably connected to a rotating plate 17 through a rotating mechanism 2, and the connecting head 120 1 is detachably connected to the bottom of the rotating plate 17, and a clamping mechanism 4 for centrally clamping the electrical control board body 13 is arranged on the top of the bottom plate 1, and the movement of the electrical control board body 13 is pushed by the pushing mechanism 9, so that the connection between the interface 1301 and the connector 1201 is more convenient and quick, and at the same time, a shaking effect can be formed on the electrical control board body 13, which can avoid the poor contact between the interface 1301 and the connector 1201, and when the connector 1201 is damaged, it is convenient to replace another connector 1201 for connection test, thereby improving the efficiency and accuracy of the test.

[0027] See also Figure 5 The rotating mechanism 2 includes a motor 201 fixedly connected to the top of the L-shaped plate 16, and the output end of the motor 201 is fixedly connected to the rotating shaft 202, and the lower end of the rotating shaft 202 is fixed to the top of the rotating plate 17. After the electrical control board body 13 moves back and forth, if the test machine 12 still shows that the circuit is blocked, at this time, the connector 1201 is pulled out from the interface 1301 through the lifting module 18, and then the motor 201 is started. The rotation of the motor 201 drives the rotation of the rotating shaft 202 and the rotating plate 17, so that the rotating plate 17 rotates 180 degrees, thereby replacing another new connector 1201, and then, the replaced connector 1201 is inserted into the interface 1301 through the lifting module 18. If it is displayed normally, it means that the previous connector 1201 is damaged and needs to be replaced. If it is still displayed that the circuit is blocked, it means that there is a fault in the electrical control board body 13, thereby ensuring the accuracy of the test results.

[0028] See also Figure 5The first telescopic mechanism 3 includes two symmetrically arranged first rods 301 fixedly connected to the bottom of the first moving block 14, and the side walls of the first rods 301 are sleeved with first sleeves 302, the lower ends of the first sleeves 302 are fixed to the top of the second moving block 15, and the side walls of each first sleeve 302 are sleeved with first springs 303. After the connector 1201 is inserted into the interface 1301, if the test machine 12 shows that the circuit is not connected, the first moving block 14 can continue to move downward through the lifting module 18, and at this time, the first spring 303 is gradually compressed.

[0029] See also Figure 4 The clamping mechanism 4 includes two symmetrically arranged support plates 401 fixedly connected to the top of the base plate 1, and the opposite side walls of the two support plates 401 are connected to two symmetrically arranged V-shaped plates 402 through the first reset mechanism 7. The movement of the V-shaped plates 402 is driven by the pushing component 5. When testing, the electrical control board body 13 is placed on the conveyor belt 1101 for transportation. When reaching the test position, the first moving block 14 is driven downward by the lifting module 18, and the two V-shaped plates 402 are pushed to move closer to each other by the pushing component 5. When the two V-shaped plates 402 move closer to each other, the electrical control board body 13 can be clamped in the center.

[0030] See also Figure 4 The first reset mechanism 7 includes two symmetrically arranged first T-shaped guide rods 701 fixedly connected to the side walls of each V-shaped plate 402, the support plate 401 is sleeved on the side walls of the first T-shaped guide rods 701, and the side walls of each first T-shaped guide rod 701 are sleeved with a second spring 702, which guides and resets the movement of the V-shaped plate 402.

[0031] See also Figure 4 and Figure 7 The pushing assembly 5 includes a third moving block 501, and the third moving block 501 is connected to the bottom of the first moving block 14 through the second reset mechanism 6, the bottom of the third moving block 501 is connected to a moving plate 502 through the second telescopic mechanism 8, and the side wall of the moving plate 502 is fixedly connected to two symmetrically arranged inclined plates 503, and the top of each V-shaped plate 402 is fixedly connected to a pushing rod 504, and the upper end of the pushing rod 504 can slide on the bottom of the inclined plate 503, and the first moving block 14 is driven downward by the lifting module 18. At the same time, the third moving block 501 is driven downward by the second reset mechanism 6, and the moving plate 502 is driven downward by the second telescopic mechanism 8, so that the upper end of the pushing rod 504 is against the bottom of the inclined plate 503, and slides upward along the bottom of the inclined plate 503, thereby pushing the two V-shaped plates 402 to move closer to each other.

[0032] See also Figure 7The second reset mechanism 6 includes two symmetrically arranged second T-shaped guide rods 601 fixedly connected to the side walls of the third moving block 501, and the side walls of the second T-shaped guide rods 601 are sleeved with connecting blocks 602, and the connecting blocks 602 are fixed to the bottom of the first moving block 14, and the side walls of each second T-shaped guide rod 601 are sleeved with third springs 603, which play a guiding and resetting role for the movement of the third moving block 501.

[0033] See also Figure 7 The second telescopic mechanism 8 includes two symmetrically arranged second sleeves 801 fixedly connected to the bottom of the third moving block 501, and a second sleeve rod 802 is inserted into the second sleeve 801. The lower end of the second sleeve rod 802 is fixed to the top of the moving plate 502, and the side wall of each second sleeve 801 is sleeved with a fourth spring 803. After the electrical control board body 13 is clamped in the center, when the first moving block 14 continues to move downward, the fourth spring 803 is continuously compressed.

[0034] See also Figure 6 and Figure 7 The pushing mechanism 9 includes a mounting plate 901 fixedly connected to the top of the moving plate 502, and the side wall of the mounting plate 901 is fixedly connected with a plurality of triangular bars 902 arranged in an array, an L-shaped block 903 is connected between the first moving block 14 and the second moving block 15 through the moving mechanism 10, and a pushing pin 904 is fixedly connected to the side wall of the L-shaped block 903, and the pushing pin 904 can slide on the side wall of the triangular bar 902. When the U-shaped block 1001 moves, the pushing pin 904 is driven to move by the L-shaped block 903. When the pushing pin 904 abuts against the side wall of the triangular bar 902, the third moving block is pushed. 501 moves in the direction close to the connecting block 602, and at the same time, the third spring 603 is compressed. When the pushing pin 904 passes over the side wall of the triangular bar 902, the third moving block 501 can be moved and reset under the action of the third spring 603, and so on and so forth, so that the third moving block 501 can move back and forth, and the moving plate 502 and the inclined plate 503 can be driven to move back and forth through the second telescopic mechanism 8, so that the two V-shaped plates 402 can be pushed to move through the pushing rod 504, and then the electrical control board body 13 can be driven to move back and forth, so that the electrical control board body 13 forms a shaking effect.

[0035] See also Figure 6The moving mechanism 10 includes a U-shaped block 1001 fixedly connected to the side wall of the L-shaped block 903, and the side wall of the U-shaped block 1001 is rotatably connected to two symmetrically arranged connecting rods 1003 through a rotating pin 1002, wherein the other end of one connecting rod 1003 is rotatably connected to the bottom of the first moving block 14, and the other end of the other connecting rod 1003 is rotatably connected to the side wall of the second moving block 15. If the test machine 12 shows that the circuit is not connected, the first moving block 14 can continue to move downward through the lifting module 18. At this time, the first spring 303 is gradually compressed, and at the same time, the two connecting rods 1003 are rotated, so that the U-shaped block 1001 moves in a direction close to the mounting plate 901. When the U-shaped block 1001 moves, the push pin 904 is driven to move by the L-shaped block 903.

[0036] Working principle: When in use, when testing, the electrical control board body 13 is placed on the conveyor belt 1101 for transportation. When it reaches the test position, the first moving block 14 is driven downward by the lifting module 18. At the same time, the third moving block 501 is driven downward by the second reset mechanism 6, and the moving plate 502 is driven downward by the second telescopic mechanism 8, so that the upper end of the push rod 504 abuts against the bottom of the inclined plate 503 and slides upward along the bottom of the inclined plate 503, thereby pushing the two V-shaped plates 402 to move closer to each other. At the same time, the second spring 702 is compressed. When the two V-shaped plates 402 move closer to each other, the electrical control board body 13 can be clamped in the center;

[0037] When the first moving block 14 continues to move downward, the fourth spring 803 is further compressed. At the same time, the second moving block 15 and the L-shaped plate 16 are driven downward by the first telescopic mechanism 3, and the rotating plate 17 and the connector 1201 are driven to move downward synchronously, so that the connector 1201 is inserted into the interface 1301, making the connection between the interface 1301 and the connector 1201 more convenient and quick. After the connection is completed, the electrical control board body 13 can be tested.

[0038] After the connector 1201 is inserted into the interface 1301, if the test machine 12 indicates that the circuit is not connected, the first moving block 14 can be moved downward by the lifting module 18. At this time, the first spring 303 is gradually compressed, and at the same time, the two connecting rods 1003 are rotated, so that the U-shaped block 1001 moves toward the mounting plate 901.

[0039] When the U-shaped block 1001 moves, the pushing pin 904 is driven to move by the L-shaped block 903. When the pushing pin 904 abuts against the side wall of the triangular bar 902, the third moving block 501 is pushed to move in the direction close to the connecting block 602. At the same time, the third spring 603 is compressed. When the pushing pin 904 passes over the side wall of the triangular bar 902, the third moving block 501 can move and reset under the action of the third spring 603. In this way, the third moving block 501 can move back and forth, and the moving plate 502 and the inclined plate 503 can be driven to move back and forth by the second telescopic mechanism 8, so that the two V-shaped plates 402 can be pushed to move by the pushing rod 504, and then the electrical control board body 13 can be driven to move back and forth, so that the electrical control board body 13 forms a shaking effect, which can avoid the poor contact between the interface 1301 and the connector 1201, and the connection is more convenient and quick, ensuring the efficiency and effect of the connection, and thus ensuring the efficiency of the test;

[0040] After the electrical control board body 13 moves back and forth, if the test machine 12 still displays that the circuit is blocked, at this time, the connector 1201 is pulled out from the interface 1301 through the lifting module 18, and then the motor 201 is started. The rotation of the motor 201 drives the rotation of the shaft 202 and the rotating plate 17, so that the rotating plate 17 rotates 180 degrees, thereby replacing another new connector 1201, and then inserting the replaced connector 1201 into the interface 1301 through the lifting module 18. If it is displayed normally, it means that the previous connector 1201 is damaged and needs to be replaced. If it still displays that the circuit is blocked, it means that there is a fault in the electrical control board body 13, thereby ensuring the accuracy of the test result;

[0041] After the test is completed, the connector 1201 is moved upward and pulled out from the interface 1301, so that the tested electrical control board body 13 is transported forward, and another electrical control board body 13 is transported to the test position, thereby improving the test efficiency.

Claims

1. An electrical control board testing mechanism that is easy to connect, comprising a conveyor (11) and a testing machine (12) arranged on the top of a base plate (1), wherein the conveyor (11) comprises a conveyor belt (1101), and the testing machine (12) comprises two symmetrically arranged connecting heads (1201), characterized in that: The top of the base plate (1) is connected to a first moving block (14) via a lifting module (18), and the bottom of the first moving block (14) is connected to a second moving block (15) via a first telescopic mechanism (3), the bottom of the second moving block (15) is fixedly connected to an L-shaped plate (16), and the bottom of the L-shaped plate (16) is rotatably connected to a rotating plate (17) via a rotating mechanism (2), the connecting head (1201) is detachably connected to the bottom of the rotating plate (17), a clamping mechanism (4) for centering the electrical control panel body (13) is provided at the top of the base plate (1), and the movement of the electrical control panel body (13) is driven by a driving mechanism (9), and the rotating mechanism (2) comprises a fixedly connected L-shaped plate (16) and a rotating plate (17) connected to the bottom of the rotating plate (17). The motor (201) is fixedly connected to the top of the rotating plate (16), the output end of the motor (201) is fixedly connected to a rotating shaft (202), and the lower end of the rotating shaft (202) is fixed to the top of the rotating plate (17), the first telescopic mechanism (3) comprises two symmetrically arranged first sets of rods (301) fixedly connected to the bottom of the first moving block (14), and the side walls of the first sets of rods (301) are sleeved with first sleeves (302), the lower ends of the first sleeves (302) are fixed to the top of the second moving block (15), and the side walls of each first sleeve (302) are sleeved with a first spring (303), and the clamping mechanism (4) comprises two symmetrically arranged support plates (401) fixedly connected to the top of the bottom plate (1), and the two support plates ( The side walls opposite to each other of the support plate (401) are connected to two symmetrically arranged V-shaped plates (402) via a first reset mechanism (7); the movement of the V-shaped plates (402) is driven by a pushing assembly (5); the first reset mechanism (7) comprises two symmetrically arranged first T-shaped guide rods (701) fixedly connected to the side walls of the respective V-shaped plates (402); the support plate (401) is sleeved on the side walls of the first T-shaped guide rods (701); and the side walls of the respective first T-shaped guide rods (701) are sleeved with second springs (702); the pushing assembly (5) comprises a third moving block (501); and the third moving block (501) is connected to the bottom of the first moving block (14) via a second reset mechanism (6); and the third moving block (501) The bottom of the third moving block (501) is connected to a moving plate (502) via a second telescopic mechanism (8), and the side wall of the moving plate (502) is fixedly connected to two symmetrically arranged inclined plates (503), the top of each of the V-shaped plates (402) is fixedly connected to a push rod (504), and the upper end of the push rod (504) can slide on the bottom of the inclined plate (503), the second reset mechanism (6) comprises two symmetrically arranged second T-shaped guide rods (601) fixedly connected to the side wall of the third moving block (501), and the side wall of the second T-shaped guide rod (601) is sleeved with a connecting block (602), the connecting block (602) is fixed to the bottom of the first moving block (14), and the side wall of each of the second T-shaped guide rods (601) is sleeved with a third spring (603),The second telescopic mechanism (8) comprises two symmetrically arranged second sleeves (801) fixedly connected to the bottom of the third moving block (501), and a second sleeve rod (802) is inserted into the second sleeve (801), the lower end of the second sleeve rod (802) is fixed to the top of the moving plate (502), and the side wall of each second sleeve (801) is sleeved with a fourth spring (803), the pushing mechanism (9) comprises a mounting plate (901) fixedly connected to the top of the moving plate (502), and the side wall of the mounting plate (901) is fixedly connected to a plurality of triangular bars (902) arranged in an array, and the first moving block (14) and the second moving block (15) are connected by a moving block. The moving mechanism (10) is connected to an L-shaped block (903), the side wall of the L-shaped block (903) is fixedly connected to a push pin (904), and the push pin (904) can slide on the side wall of the triangular bar (902), the moving mechanism (10) comprises a U-shaped block (1001) fixedly connected to the side wall of the L-shaped block (903), and the side wall of the U-shaped block (1001) is rotatably connected to two symmetrically arranged connecting rods (1003) through a rotating pin (1002), the other end of one of the connecting rods (1003) is rotatably connected to the bottom of the first moving block (14), and the other end of the other connecting rod (1003) is rotatably connected to the side wall of the second moving block (15).

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