Instrument fault detection device

Abstract

The present invention relates to the field of instrument detection technology, and in particular to an instrument fault detection device, comprising a body, a motor mounted on the outer wall of the body, an output shaft of the motor extending into the body and mounted with a bidirectional threaded rod, a fixed centering assembly mounted on the bidirectional threaded rod; a vertical rotating shaft mounted on the inner wall of the body, a pushing assembly mounted between the fixed centering assembly and the vertical rotating shaft, a cam frame mounted on the vertical rotating shaft, a limiting slot provided on the side wall of the cam frame, a connecting frame inserted into the body, a detector mounted on the connecting frame, two limiting rollers symmetrically connected to the side wall of the connecting frame, and the other limiting roller contacts the outer end face of the cam frame. The advantages of the present invention are: the structure of the present invention is ingenious, the design is reasonable, and the rapid detection of the instrument to be detected can be achieved. It can be combined with the conveyor belt of the production line to form an assembly line for the instrument to be detected, thereby achieving automation of the instrument to be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument detection, and in particular to an instrument fault detection device. Background Art

[0002] To improve efficiency and reduce costs, both in the fields of production and construction and environmental protection and monitoring, automated instruments are widely used to detect and calculate relevant physical quantities, material compositions, and physical parameters. If an automated instrument fails to detect and calculate these physical quantities, material compositions, and physical parameters due to a malfunction, or is unable to accurately detect and calculate these physical quantities, material compositions, and physical parameters due to a malfunction, production and construction delays and inaccurate environmental monitoring will result. However, there is currently limited equipment available on the market for detecting automated instrument faults. Most inspectors can only determine whether an automated instrument is faulty through manual testing or based on experience, resulting in low detection efficiency and a failure to integrate with existing instrument production lines to achieve automated fault detection.

[0003] To this end, we propose an instrument fault detection device to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose an instrument fault detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An instrument fault detection device includes a body, a motor is mounted on an outer wall of the body, an output shaft of the motor extends into the body and is mounted with a bidirectional threaded rod, and a fixed centering assembly is mounted on the bidirectional threaded rod;

[0007] A vertical rotating shaft is installed on the inner side wall of the body, a pushing assembly is installed between the fixed centering assembly and the vertical rotating shaft, a cam frame is installed on the vertical rotating shaft, a limiting groove is provided on the side wall of the cam frame, a connecting frame is inserted into the body, a detector is installed on the connecting frame, two limiting rollers are symmetrically connected to the side wall of the connecting frame, one of the limiting rollers is located in the limiting groove, and the other limiting roller is in contact with the outer end face of the cam frame.

[0008] In the above-mentioned instrument fault detection device, the fixed centering component includes two symmetrically arranged moving blocks, and each moving block is threadedly connected to a bidirectional threaded rod. Two through holes are symmetrically opened on the body, and each of the moving blocks is fixedly connected to an L-shaped connecting rod. Each of the L-shaped connecting rods passes through a through hole at a corresponding position and is installed with a fixed clamp.

[0009] In the above-mentioned instrument fault detection device, the bidirectional threaded rod is symmetrically provided with two sections of threads, and the directions of the two sections of threads are opposite, and each of the moving blocks is respectively connected to the two sections of threads.

[0010] In the above-mentioned instrument fault detection device, the pushing component includes a pushing turntable, and the pushing turntable is installed on a vertical rotating shaft. Each of the moving blocks rotates together with the end face of the pushing turntable and is connected to a pushing bracket, and the two pushing brackets are symmetrical about the axis center of the vertical rotating shaft.

[0011] In the above-mentioned instrument fault detection device, a placement groove is formed on the upper end surface of the body, a mounting cavity is formed on one side wall of the placement groove, and a placement plate is slidably connected to the mounting cavity, and the placement plate is located in the placement groove, and a plurality of return springs are installed between the placement plate and the inner wall of the mounting cavity;

[0012] A horizontal rotating shaft is installed in the body, and the axis of the horizontal rotating shaft is parallel to the axis of the bidirectional threaded rod. The horizontal rotating shaft and the bidirectional threaded rod are connected by a gear transmission assembly. A winding roller is installed on the horizontal rotating shaft, and a connecting rope is installed on the outer side wall of the winding roller. The end of the connecting rope extends into the installation cavity and is connected to the side wall of the placement plate.

[0013] In the above-mentioned instrument fault detection device, the gear transmission assembly includes a spur gear 2 and a spur gear 1, and the spur gear 2 is installed on a horizontal rotating shaft, and the spur gear 1 is installed on a bidirectional threaded rod, and the spur gear 2 is meshed with the spur gear 1, and the pitch circle diameter of the spur gear 2 is larger than the pitch circle diameter of the spur gear 1.

[0014] In the above-mentioned instrument fault detection device, a material guide rack is installed on the inner top wall of the body, and one end of the material guide rack passes through the side wall of the body and extends outward, and the placement slot is located above the material guide rack.

[0015] In the above-mentioned instrument fault detection device, guide rollers are rotatably connected to the two inner side walls of the guide frame, and the connecting rope is wound around the guide rollers.

[0016] In the above-mentioned instrument fault detection device, the material guide rack includes two symmetrically arranged wedge plates, and each wedge plate is fixedly connected to the inner top wall of the machine body, the lower ends of the two wedge plates are fixedly connected to an inclined material guide plate, and an end plate is commonly installed between the end faces of the two wedge plates and the inclined material guide plate.

[0017] Compared with the existing technology, the beneficial effects of the present invention are:

[0018] 1. This device is equipped with a motor to realize the fixed clamping, detection and discharge of the detected table. The design is reasonable, and the rapid detection of the detected table can be realized. It can cooperate with the conveyor belt of the production line to form an assembly line of the detected table, realizing the automation of the detected table.

[0019] 2. During the movement process, the moving block pushes the turntable and the vertical rotating shaft by pushing the bracket to rotate, thereby realizing the conversion from linear motion to rotational motion. Then, the conversion from rotational motion to linear motion is realized through the setting of the cam frame, the limit roller and the limit slot, thereby synchronizing the opposite motion of the moving block with the reciprocating motion of the connecting frame. While clamping the detected device, the detector detects the detected device, saving detection time and improving detection efficiency.

[0020] 3. During the rotation of the bidirectional threaded rod, the meshing of the spur gear 1 and the spur gear 2 drives the winding roller to rotate, and then the connecting rope and the reset spring drive the placement plate to reciprocate in the placement slot. The placement plate is located in the placement slot to detect the surface being detected. When the placement plate moves into the installation cavity, the surface being detected falls and discharges.

[0021] 4. The material guide rack includes two symmetrically arranged wedge plates, and each wedge plate is fixedly connected to the inner top wall of the machine body. The lower end faces of the two wedge plates are inclined, and the lower ends of the two wedge plates are fixedly connected to the inclined material guide plate. An end plate is installed between the end faces of the two wedge plates and the inclined material guide plate to ensure that the material being detected can fall onto the inclined material guide plate and fall up and down. At the same time, the friction between the detected material and the inclined material guide plate can also slow down the falling speed of the detected material, avoiding damage to internal components caused by the detected material falling too fast, thereby realizing automatic unloading after the device is detected.

[0022] 5. If the detector detects a fault in the detected device, it will transmit the fault information to the controller. The controller controls the motor to turn off, and the worker fixes the detected device on the placement plate. Then, the motor is turned on. The motor drives the bidirectional threaded rod to rotate in the opposite direction. The two fixing clamps release the detected device. The worker removes the detected device to prevent it from falling from the placement slot. If the detected device has no fault, it can fall through the placement slot and the guide plate and be moved out of the machine body.

[0023] In summary, the present invention has an ingenious structure and a reasonable design, and can realize rapid detection of the instrument to be detected. It can cooperate with the conveyor belt of the production line to form an assembly line of the instrument to be detected, thereby realizing the automation of the instrument to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a visual diagram of an instrument fault detection device proposed by the present invention;

[0025] Figure 2This is a structural diagram of an instrument fault detection device proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of an instrument fault detection device proposed by the present invention;

[0027] Figure 4 This is an enlarged view of the structure of the driving turntable portion of an instrument fault detection device proposed by the present invention;

[0028] Figure 5 This is an enlarged view of the cam frame structure of the instrument fault detection device proposed by the present invention.

[0029] In the figure: 1 body, 2 guide frame, 3 connecting rope, 4 placement slot, 5 placement plate, 6 through hole, 7 L-shaped connecting rod, 8 fixing clamp, 9 connecting frame, 10 detector, 11 motor, 12 installation cavity, 13 bidirectional threaded rod, 14 horizontal rotation shaft, 15 winding roller, 16 spur gear 2, 17 cam frame, 18 guide roller, 19 return spring, 20 push turntable, 21 push bracket, 22 moving block, 23 limit roller, 24 vertical rotation shaft, 25 limit slot, 26 spur gear 1. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example

[0032] Reference Figure 1-5 , an instrument fault detection device, including a body 1, a motor 11 is installed on the outer wall of the body 1, the output shaft of the motor 11 extends into the body 1 and is installed with a bidirectional threaded rod 13, the bidirectional threaded rod 13 is installed with a fixed centering component, the fixed centering component includes two symmetrically arranged moving blocks 22, and each moving block 22 is threadedly connected to the bidirectional threaded rod 13, the bidirectional threaded rod 13 is symmetrically opened with two sections of thread, and the two sections of thread have opposite directions, each moving block 22 is respectively connected to the two sections of thread, and the opposite directions of the thread ensure that when the motor 11 drives the bidirectional threaded rod 13 to rotate, the movement directions of the two moving blocks 22 are opposite, and the pitch of the thread is the same, ensuring that the movement process of the two moving blocks 22 is equal within the same movement time;

[0033] The two L-shaped links 7 are fixedly connected to each other on the movable block 22. Each L-shaped link 7 passes through the corresponding through-hole 6 and is installed with a fixing clamp 8. The setting of the through-hole 6 can not only provide movement space for the L-shaped link 7, but also limit the L-shaped link 7 to prevent the L-shaped link 7 from rotating with the rotation of the two-way threaded rod 13. At the same time, the through-hole 6 contacts with the L-shaped link 7 to ensure the stability of the L-shaped link 7 during the movement. The motor 11 drives the two-way threaded rod 13 to rotate and then drives the L-shaped link 7 and the fixing clamp 8 to move. The fixed clamp 8 is used to fix the detected table. The setting of the two-way threaded rod 13 and the movable block 22 can ensure that the movement stroke of the two fixing clamps 8 is equal. When the two fixing clamps 8 clamp and fix the detected device at the same time, the detected device can be centered at the same time, ensuring that the detected device is fixedly clamped in the middle of the body 1, that is, in the middle of the placement plate 5, to prepare for the detection device 10 to detect the detected device.

[0034] A vertical rotating shaft 24 is installed on the inner side wall of the machine body 1, and a pushing component is installed between the fixed centering component and the vertical rotating shaft 24. The pushing component includes a pushing turntable 20, and the pushing turntable 20 is installed on the vertical rotating shaft 24. Each moving block 22 rotates together with the end surface of the pushing turntable 20 and is connected to a pushing bracket 21, and the two pushing brackets 21 are symmetrical about the axis center of the vertical rotating shaft 24. The overall length of the pushing bracket 21 remains unchanged during the movement, so the position of the end of the pushing bracket 21 away from the moving block 22 changes and simultaneously drives the pushing turntable 20 to rotate. The two pushing brackets 21 are symmetrical about the axis center of the vertical rotating shaft 24, ensuring that the two pushing brackets 21 have the same pushing process on the pushing turntable 20;

[0035] A cam frame 17 is installed on the vertical rotating shaft 24, and a limiting groove 25 is provided on the side wall of the cam frame 17. A connecting frame 9 is inserted on the body 1, and a detector 10 is installed on the connecting frame 9. Two limiting rollers 23 are symmetrically connected to the side wall of the connecting frame 9, and one of the limiting rollers 23 is located in the limiting groove 25, and the other limiting roller 23 is in contact with the outer end surface of the cam frame 17; it is worth noting that when the cam frame 17 rotates, the contour of the cam frame 17 interacts with the follower, forcing the follower to move according to the motion law specified by the cam contour, and the limiting rollers 23 and the limiting grooves 25 can limit the connecting frame 9 to the cam frame 17 to prevent the connecting frame 9 from separating from the cam frame 17.

[0036] A placement slot 4 is provided on the upper end surface of the body 1, and a mounting cavity 12 is provided on one side wall of the placement slot 4, and a placement plate 5 is slidably connected to the mounting cavity 12, and the placement plate 5 is located in the placement slot 4, and the length of the placement plate 5 is longer than the length of the placement slot 4, ensuring that when the end surface of the placement plate 5 away from the return spring 19 abuts against the inner wall of the placement slot 4, a part of the placement plate 5 is located in the mounting cavity 12, ensuring that the placement plate 5 will not fall from the placement slot 4, ensuring that the placement plate 5 is sufficient to support the detected device, and a plurality of return springs 19 are installed between the placement plate 5 and the inner wall of the mounting cavity 12. A material guide rack 2 is installed on the inner top wall of the body 1, and one end of the material guide rack 2 passes through the side wall of the body 1 and extends outward, and the placement slot 4 is located above the material guide rack 2;

[0037] A horizontal rotating shaft 14 is installed in the body 1, and the axis of the horizontal rotating shaft 14 is parallel to the axis of the bidirectional threaded rod 13. The horizontal rotating shaft 14 and the bidirectional threaded rod 13 are connected by a gear transmission assembly, which includes a spur gear 2 16 and a spur gear 1 26. The spur gear 2 16 is installed on the horizontal rotating shaft 14, and the spur gear 1 26 is installed on the bidirectional threaded rod 13. The spur gear 2 16 is meshed with the spur gear 1 26. The pitch circle diameter of the spur gear 1 26 is smaller than the pitch circle diameter of the spur gear 2 16, and the pitch circle diameter of the spur gear 2 16 is larger than the pitch circle diameter of the spur gear 2 The pitch circle diameter of the spur gear 1 26 and the two-way threaded rod 13 drive the moving block 22 to move at a relatively high speed, while the speed and angle required when the winding roller 15 drives the connecting rope 3 to move do not need to be too large. The speed of the horizontal rotating shaft 14 is reduced by the spur gear 1 26 and the spur gear 2 16. When the motor 11 drives the two-way threaded rod 13 to rotate the fixed clamping block 8 in the forward direction to clamp and fix the object to be detected, the spur gear 1 26 drives the spur gear 2 16 to rotate. When the winding roller 15 rotates, the connecting rope 3 is in a relaxed state, and the connecting rope 3 is released, so the position of the placement plate 5 does not change.

[0038] A winding roller 15 is installed on the horizontal rotating shaft 14, and a connecting rope 3 is installed on the outer wall of the winding roller 15. The end of the connecting rope 3 extends into the installation cavity 12 and is connected to the side wall of the placement plate 5. The guide frame 2 includes two symmetrically arranged wedge plates, and each wedge plate is fixedly connected to the inner top wall of the machine body 1. The lower end faces of the two wedge plates are inclined, and the lower ends of the two wedge plates are fixedly connected to the inclined guide plates. End plates are jointly installed between the end faces of the two wedge plates and the inclined guide plates. The angle between the inclined guide plates and the inner top wall of the machine body 1 is between 20° and 60°, ensuring that the material being detected can fall onto the inclined guide plates and fall up and down. At the same time, the friction between the material being detected and the inclined guide plates can also slow down the falling speed of the material being detected, avoiding the material being detected The device falls too fast, causing damage to internal components. The components in the body 1 (bidirectional threaded rod 13, horizontal rotating shaft 14, winding roller 15, spur gear 16, etc.) are all located below the inclined guide plate. A rectangular hole is provided on the inclined guide plate, and the connecting rope 3 is located in the rectangular hole. The side of the connecting rope 3 close to the guide frame 2 (that is, the side in direct contact with the winding roller 15) is an inclined surface. When the material falls, the connecting rope 3 will not affect the falling of the detected device. Guide rollers 18 are connected to the two inner side walls of the guide frame 2 for rotation, and the connecting rope 3 is wound on the guide rollers 18. The guide rollers 18 can guide the connecting rope 3, reduce the friction between the connecting rope 3 and the inner wall of the rectangular hole, reduce the wear of the connecting rope 3, and increase the service life of the connecting rope 3.

[0039] When the present invention is in use, the object to be tested by the instrument is placed on the placement plate 5 by manual or conveyor belt. During the test, the motor 11 is turned on, and the output shaft of the motor 11 drives the bidirectional threaded rod 13 to rotate forward. During the rotation of the bidirectional threaded rod 13, the moving blocks 22 threadedly connected thereto are driven to move closer to each other, and the fixed clamping block 8 is driven to move closer to the object to be tested through the L-shaped connecting rod 7. The two fixed clamping blocks 8 clamp the object to be tested and fix it. At the same time, the pushing bracket 21, which is respectively connected to the two moving blocks 22 for rotation, moves accordingly. The overall length of the pushing bracket 21 remains unchanged during the movement, so the pushing bracket 21 is away from the moving block 2 2 changes its position and simultaneously pushes the turntable 20 to rotate. During the rotation of the turntable 20, the cam frame 17 coaxially arranged therewith is driven to rotate. Since the outer surface profile of the cam frame 17 is at an unequal distance from the axis of the vertical rotation axis 24, the connecting frame 9 is driven to move downward in the vertical direction through the limiting groove 25 and the limiting roller 23. The detector 10 moves downward to contact the object to be detected and detect it. While the two fixed clamps 8 are fixing and clamping the object to be detected, the connecting frame 9 drives the detector 10 to descend to detect the object to be detected. Clamping and detection are carried out simultaneously, saving detection time and improving detection efficiency.

[0040] After the detection is completed, the motor 11 is turned on again, and the motor 11 drives the bidirectional threaded rod 13 to rotate in the opposite direction, and the moving block 22 drives the fixed clamping block 8 to move away from each other through the L-shaped connecting rod 7. At the same time, the spur gear 1 26 on the bidirectional threaded rod 13 rotates in the opposite direction and drives the spur gear 2 26 to rotate. During the rotation of the spur gear 2 26, the winding roller 15 is driven to rotate through the horizontal rotating shaft 14. The connecting rope 3 fixedly connected to the winding roller 15 is wound around the winding roller 15. The connecting rope 3 drives the placement plate 5 to move into the installation cavity 12 and compresses the reset spring 19 until the placement plate 5 is separated from the placement slot 4. During the movement of the placement plate 5, the side wall of the detected object and the inner side wall of the placement slot 4 are against each other in a limited position and will not move with the movement of the placement plate 5.

[0041] After the placement plate 5 is separated from the placement slot 4, the object to be detected falls into the guide rack 2. The inner bottom wall of the guide rack 2 is tilted, and the object to be detected slides out of the machine body 1 under the action of its own gravity; the guide rack 2 includes two symmetrically arranged wedge plates, and each wedge plate is fixedly connected to the inner top wall of the machine body 1. The lower end faces of the two wedge plates are tilted, and the lower ends of the two wedge plates are fixedly connected to the inclined guide plates. An end plate is installed between the end faces of the two wedge plates and the inclined guide plates. The angle between the inclined guide plates and the inner top wall of the machine body 1 is between 20° and 60°, ensuring that the material being detected can fall onto the inclined guide plates Falling, at the same time, the friction between the detected device and the inclined guide plate can also slow down the falling speed of the detected device, preventing the detected device from falling too fast and causing damage to internal components. The components in the body 1 (bidirectional threaded rod 13, horizontal rotating shaft 14, winding roller 15, spur gear 2 16, etc.) are all located below the inclined guide plate. A rectangular hole is opened on the inclined guide plate, and the connecting rope 3 is located in the rectangular hole. The side of the connecting rope 3 close to the guide frame 2 (that is, the side in direct contact with the winding roller 15) is an inclined surface. When the material falls, the connecting rope 3 will not affect the falling of the detected device;

[0042] It is worth noting that when the motor 11 drives the bidirectional threaded rod 13 to rotate the fixed clamping block 8 in the forward direction to clamp the object to be detected, the spur gear 1 26 drives the spur gear 2 16 to rotate. When the winding roller 15 rotates, the connecting rope 3 is in a relaxed state. Therefore, the position of the placement plate 5 does not change.

[0043] It is worth noting that the detector 10 is connected to the existing controller. If the detector 10 detects a fault in the detected device, it will transmit the fault information to the controller. The controller is electrically connected to the motor 11. The controller controls the motor 11 to turn off. The worker fixes the detected device on the placement plate 5 and then turns on the motor 11. The motor 11 drives the bidirectional threaded rod 13 to rotate in the opposite direction. The two fixing clamps 8 release the detected device. The worker removes the detected device to prevent it from falling from the placement slot 4.

[0044] Although this document frequently uses terms such as body 1, guide frame 2, connecting rope 3, placement slot 4, placement plate 5, through hole 6, L-shaped connecting rod 7, fixing clamp 8, connecting frame 9, detector 10, motor 11, mounting cavity 12, bidirectional threaded rod 13, horizontal rotation shaft 14, winding roller 15, spur gear 2 16, cam frame 17, guide roller 18, return spring 19, driving turntable 20, driving bracket 21, moving block 22, limiting roller 23, vertical rotation shaft 24, limiting slot 25, spur gear 1 26, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. An instrument fault detection device, comprising a body (1), characterized in that: A motor (11) is mounted on the outer wall of the body (1), an output shaft of the motor (11) extends into the body (1) and is mounted with a bidirectional threaded rod (13), a fixed centering assembly is mounted on the bidirectional threaded rod (13); the fixed centering assembly comprises two symmetrically arranged moving blocks (22), and each moving block (22) is threadedly connected to the bidirectional threaded rod (13), two through holes (6) are symmetrically provided on the body (1), each of the moving blocks (22) is fixedly connected with an L-shaped connecting rod (7), and each of the L-shaped connecting rods (7) passes through a corresponding through hole (6) and is mounted with a fixed clamping block (8); A vertical rotating shaft (24) is installed on the inner side wall of the body (1), and a pushing component is installed between the fixed centering component and the vertical rotating shaft (24), and the pushing component includes a pushing turntable (20), and the pushing turntable (20) is installed on the vertical rotating shaft (24), and each of the moving blocks (22) rotates together with the end surface of the pushing turntable (20) and is connected to a pushing bracket (21), and the two pushing brackets (21) are symmetrical about the axis center of the vertical rotating shaft (24); A cam frame (17) is mounted on the vertical rotating shaft (24), a limiting groove (25) is provided on the side wall of the cam frame (17), a connecting frame (9) is inserted on the body (1), a detector (10) is mounted on the connecting frame (9), two limiting rollers (23) are symmetrically connected to the side wall of the connecting frame (9), one of the limiting rollers (23) is located in the limiting groove (25), and the other limiting roller (23) is in contact with the outer end surface of the cam frame (17); When in use, the object to be tested is placed on the placement plate (5) manually or by a conveyor belt. During testing, the motor (11) is turned on and the object to be tested is clamped and fixed by the fixed centering component. At the same time, the detector (10) descends to test the object to be tested, thereby achieving simultaneous clamping and testing.

2. The instrument fault detection device according to claim 1, characterized in that: The bidirectional threaded rod (13) is symmetrically provided with two sections of thread, and the directions of the two sections of thread are opposite, and each of the moving blocks (22) is respectively connected to the two sections of thread.

3. The instrument fault detection device according to claim 1, characterized in that: The upper end surface of the body (1) is provided with a placement groove (4), a side wall of the placement groove (4) is provided with a mounting cavity (12), a placement plate (5) is slidably connected in the mounting cavity (12), and the placement plate (5) is located in the placement groove (4), and a plurality of return springs (19) are installed between the placement plate (5) and the inner wall of the mounting cavity (12); A horizontal rotating shaft (14) is installed in the body (1), and the axis of the horizontal rotating shaft (14) is parallel to the axis of the bidirectional threaded rod (13). The horizontal rotating shaft (14) and the bidirectional threaded rod (13) are connected via a gear transmission assembly. A winding roller (15) is installed on the horizontal rotating shaft (14), and a connecting rope (3) is installed on the outer wall of the winding roller (15). The end of the connecting rope (3) extends into the installation cavity (12) and is connected to the side wall of the placement plate (5).

4. The instrument fault detection device according to claim 3, characterized in that: The gear transmission assembly includes a spur gear 2 (16) and a spur gear 1 (26), and the spur gear 2 (16) is mounted on the horizontal rotating shaft (14), and the spur gear 1 (26) is mounted on the bidirectional threaded rod (13), and the spur gear 2 (16) is meshed with the spur gear 1 (26), and the pitch circle diameter of the spur gear 2 (16) is larger than the pitch circle diameter of the spur gear 1 (26).

5. The instrument fault detection device according to claim 3, characterized in that: A material guide rack (2) is installed on the inner top wall of the machine body (1), and one end of the material guide rack (2) passes through the side wall of the machine body (1) and extends outwards, and the placement groove (4) is located above the material guide rack (2).

6. The instrument fault detection device according to claim 5, characterized in that: Guide rollers (18) are rotatably connected to the two inner side walls of the guide frame (2), and the connecting rope (3) is wound around the guide rollers (18).

7. The instrument fault detection device according to claim 5, characterized in that: The material guide frame (2) comprises two symmetrically arranged wedge plates, and each wedge plate is fixedly connected to the inner top wall of the machine body (1), the lower ends of the two wedge plates are fixedly connected to an inclined material guide plate, and an end plate is installed between the end faces of the two wedge plates and the inclined material guide plate.

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