Material accumulation detection device for belt conveyor

Abstract

The present invention relates to the technical field of belt conveyors, and proposes a material accumulation detection device for a belt conveyor, comprising a support base, a first bracket and a second bracket being mounted on the support base, a second motor being mounted on the second bracket, a first roller being fixedly connected to the output shaft of the second motor, a second roller being rotatably mounted on the first bracket, a conveyor belt being mounted on the first roller and the second roller, a first slide plate and a second slide plate being slidably mounted on the support base, a screw being threadedly mounted on the first slide plate and the second slide plate, and a first connecting plate being fixedly connected above the first slide plate. The above technical solution solves the problem that the existing material accumulation detection device for belt conveyors cannot adjust the accumulation detection position and detection sensitivity as needed, and cannot switch or synchronize detection between belt pressure detection and roller rotation resistance detection.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyors, and in particular to a material accumulation detection device for a belt conveyor. Background Art

[0002] Belt conveyors are widely used in industries such as industry, mining, and logistics. They effectively transport materials horizontally or at an angle. During material transportation, ensuring accurate material delivery and accumulation is crucial. Using a material accumulation detection device can achieve precise control of material delivery, improve production efficiency, reduce energy consumption, and mitigate losses caused by equipment failure. However, existing belt conveyor material accumulation detection devices still have some shortcomings.

[0003] Patent publication number CN104097917A discloses a belt conveyor and a device for detecting abnormal material accumulation. This device fundamentally addresses the various issues that can occur with conventional belt conveyor systems, such as the inability of the top rollers and belt equipment to automatically shut down. The device boasts excellent self-detection capabilities, sensitive control, and rapid response. It can automatically shut down the belt conveyor based on the actual state of material accumulation during conveying, effectively resolving conflicts in previous production processes and providing fundamental control over equipment safety and the environment at the production site. While the device can achieve automatic shutdown, it lacks the ability to adjust the accumulation detection position and sensitivity as needed. Furthermore, existing conveyor material accumulation detection devices lack the ability to switch between belt pressure detection and roller rotational resistance detection, or to synchronize detection. Consequently, using the same detection method cannot guarantee effective accumulation detection when materials are concentrated or laid flat, and the device cannot adapt to different detection methods to accommodate different heavy materials. Summary of the Invention

[0004] The present invention proposes a material accumulation detection device for a belt conveyor, which solves the problems that the existing material accumulation detection device for a belt conveyor cannot adjust the accumulation detection position and detection sensitivity as needed, and cannot switch or synchronize detection between belt pressure detection and roller rotation resistance detection.

[0005] The technical solutions of the present invention are as follows:

[0006] The transmission mechanism that this second motor drives is that this second motor drives the transmission mechanism that this second motor drives is that this second motor drives the transmission mechanism that this second motor drives is that this second motor drives the transmission mechanism that this second motor drives is that this second motor drives the transmission mechanism that this second motor drives is that this second motor drives the transmission mechanism that this second motor drives is that A second conductive plate is fixedly connected to a conductive plate, a third conductive plate is slidably connected to the outer side of the second conductive plate, a second detection component is installed between the third conductive plate and the second connecting plate, a power supply and an alarm light are installed on the support seat, the power supply is connected to the first conductive plate on the second connecting plate, and the alarm light is connected to the first conductive plate on the first connecting plate, a connecting block is installed on the first bracket, a rotating plate is rotatably connected to the connecting block, and the rotating plate and the second rotating roller are fixedly connected, an electric push rod is fixedly provided on the first bracket, a connecting plate is fixedly connected to the electric push rod, a first motor is fixedly mounted on the connecting plate, and the output shaft of the first motor is connected to the third detection component.

[0007] As a preferred solution of the present invention, the support seat, the first bracket and the second bracket are fixedly connected to form an integral structure, the first bracket and the second bracket are symmetrically distributed on both sides of the conveyor belt, and there is a gap between the conveyor belt and the first conductive plate.

[0008] As a preferred solution of the present invention, a guide rod is fixedly provided on the first bracket, and the guide rod passes through the interior of the connecting plate. The connecting plate and the guide rod are perpendicular to each other.

[0009] As a preferred solution of the present invention, the threads on both sides of the screw have opposite rotation directions, the screw and the support seat are rotationally connected, and the first slide and the second slide both form a sliding structure between the screw and the support seat.

[0010] As a preferred solution of the present invention, the first detection component includes an outer bushing fixedly connected to the first connecting plate and the second connecting plate, a connecting shaft is rotatably installed in the outer bushing, a torsion spring is fixedly connected between the outer bushing and the connecting shaft, and a third connecting plate is fixedly connected to the connecting shaft.

[0011] As a preferred solution of the present invention, a first docking groove for docking with the third connecting plate is provided on the first conductive plate, the third conductive plate forms a sliding structure between the second conductive plate and the first conductive plate, and a second docking groove for docking with the second detection component is provided on the third conductive plate.

[0012] As a preferred solution of the present invention, the first conductive plate, the second conductive plate and the third conductive plate are all bent, and the first conductive plate, the second conductive plate and the third conductive plate are evenly spaced on the first connecting plate and the second connecting plate.

[0013] As a preferred solution of the present invention, the second detection component and the first detection component have the same structure, and the second connecting plate is connected to the second detection component and the first detection component in the same manner.

[0014] As a preferred solution of the present invention, the third detection component includes a rotating shaft fixedly connected to the output shaft of the first motor, a first connecting rod fixedly connected to the rotating shaft, a second connecting rod fixedly connected around the first connecting rod, a rotating block is provided on the outer side of the second connecting rod, the rotating block and the rotating plate are rotatably connected, a groove is provided on the rotating plate, a clamping block is fitted in the groove, pressure plates are slidably installed around the rotating block, and a spring is fixedly connected between the clamping block and the pressure plate.

[0015] As a preferred solution of the present invention, a cross groove is provided on the rotating block for the first connecting rod and the second connecting rod to move, and the distance between the second connecting rod and the first connecting rod gradually increases from the side close to the cross groove to the side away from the cross groove.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. By setting the first conductive plate and the alarm light, when the conveyor belt transports materials, the conveyor belt will be pressed down, and the conveyor belt will press against the first conductive plates on the left and right sides of the device, causing the first conductive plates to bend. Since the first conductive plates themselves are bent, the two first conductive plates abut against each other to achieve the conductive function. The power supply can energize the alarm light, thereby realizing the material accumulation detection function. The device can change the distance between the two groups of first conductive plates by rotating the screw, so that the device can adjust the detection position according to the position of the material accumulation.

[0018] 2. The device is provided with a screw and a first conductive plate. By rotating the screw, the distance between the two groups of first conductive plates can be changed. The screw can not only change the detection position, but also change the triggering conditions for the two groups of first conductive plates to be energized when the two groups of first conductive plates are close to each other, thereby changing the sensitivity of the device to detect deposits. When the two groups of first conductive plates are away from each other, the weight of the material required to trigger the alarm light to light up increases. When the two groups of first conductive plates are close to each other, the weight of the material required to trigger the alarm light to light up decreases, which solves the problem that the existing conveyor material accumulation detection device cannot adjust the accumulation detection position and detection sensitivity as needed.

[0019] 3. By setting up the first detection component, the second detection component, the second conductive plate and the third conductive plate, since the first detection component and the second detection component have the same structure, the third conductive plate can be slid so that the third conductive plate can be docked with the second conductive component through the second docking groove, thereby increasing the pressure required when the two groups of first conductive plates are docked, so as to adapt to the accumulation detection work of heavier materials.

[0020] 4. Through the third detection component set up, the front and rear positions of the first connecting rod and the second connecting rod on the third detection component can be adjusted, and the second connecting rod can abut against the pressure plate, so that the pressure plate changes the initial elastic force of the spring, and then changes the degree of tightness between the clamping block and the rotating plate, so that the device can change the resistance between the rotating block and the rotating plate. When the resistance is large enough, torque can be transmitted through the rotating block and the rotating plate, thereby driving the second roller to rotate and driving the conveyor belt to work. When the material piled on the conveyor belt is too heavy, the resistance between the rotating block and the rotating plate is not enough to drive the conveyor belt to continue working. At this time, the rotating block will slip in the rotating plate, so that the device can realize the accumulation detection function when there is too much material on the conveyor belt as a whole. The device can switch between belt pressure detection and roller rotation resistance detection or synchronous detection, and can adapt to the use of different detection methods or two detection methods for simultaneous detection when materials are placed in a concentrated manner or materials are laid flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of a material accumulation detection device for a belt conveyor according to the present invention;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at center A;

[0024] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 4This is a schematic diagram of the connection structure between the rotating plate and the rotating block of the present invention;

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 6 This is a schematic diagram of the connection structure between the support base and the first slide plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the first slide plate and the first connecting plate of the present invention;

[0029] Figure 8 yes Figure 7 A magnified schematic diagram of the structure at D in the middle;

[0030] Figure 9 It is a schematic diagram of the connection structure between the third conductive plate and the second detection component of the present invention.

[0031] Figure numerals: 1, support base; 2, first bracket; 3, first roller; 4, second roller; 5, conveyor belt; 6, power supply; 7, alarm light; 8, first slide; 9, second slide; 10, first connecting plate; 11, second connecting plate; 12, screw; 13, first detection component; 1301, outer bushing; 1302, torsion spring; 1303, connecting shaft; 1304, third connecting plate; 14, first conductive plate; 15, second conductive plate; 16, third conductive plate; 17, first docking slot; 18. second docking slot; 19. second detection assembly; 20. connecting block; 21. rotating plate; 22. electric push rod; 23. connecting plate; 24. guide rod; 25. first motor; 26. third detection assembly; 2601. rotating shaft; 2602. first connecting rod; 2603. second connecting rod; 2604. rotating block; 2605. groove; 2606. block; 2607. spring; 2608. cross slot; 2609. pressure plate; 27. second bracket; 28. second motor. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 any creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figures 1-9As shown, this embodiment proposes a material accumulation detection device for a belt conveyor, including a support base 1, a first bracket 2 and a second bracket 27 are installed on the support base 1, a second motor 28 is installed on the second bracket 27, a first roller 3 is fixedly connected to the output shaft of the second motor 28, a second roller 4 is rotatably installed on the first bracket 2, and a conveyor belt 5 is installed on the first roller 3 and the second roller 4. When the device is in normal use, the first roller 3 can be driven to rotate by the second motor 28, thereby driving the conveyor belt 5 to work and realize material conveying. A first slide 8 and a second slide 9 are slidably mounted on the support seat 1, and a screw 12 is threadedly mounted on the first slide 8 and the second slide 9. A first connecting plate 10 is fixedly connected to the top of the first slide 8, and a second connecting plate 11 is fixedly connected to the top of the second slide 9. A first detection component 13 is mounted on the first connecting plate 10 and the second connecting plate 11, and a first conductive plate 14 is mounted on the first detection component 13. By rotating the screw 12, the first slide 8 and the second slide 9 on both sides of the device are moved toward or away from each other, thereby changing the distance between the two groups of first conductive plates 14 on the left and right sides of the device. When the distance between the two groups of first conductive plates 14 is close enough, it is only necessary to press down the two groups of first conductive plates 14 slightly, and the two groups of first conductive plates 14 can abut against each other to realize the conductive function. At this time, the sensitivity of material accumulation detection is increased, thereby adjusting the sensitivity of material accumulation detection. A second conductive plate 15 is fixedly connected to the first conductive plate 14, and a third conductive plate 16 is slidably connected to the outer side of the second conductive plate 15. A second detection component 19 is installed between the third conductive plate 16 and the second connecting plate 11. A power supply 6 and an alarm light 7 are installed on the support seat 1. The power supply 6 is connected to the first conductive plate 14 on the second connecting plate 11, and the alarm light 7 is connected to the first conductive plate 14 on the first connecting plate 10. A connecting block 20 is installed on the first bracket 2, and a rotating plate 21 is rotatably connected to the connecting block 20. The rotating plate 21 and the second rotating roller 4 are fixedly connected. An electric push rod 22 is fixedly provided on the first bracket 2, and a connecting plate 23 is fixedly connected to the electric push rod 22. A first motor 25 is fixedly mounted on the connecting plate 23, and the output shaft of the first motor 25 is connected to the third detection component 26. When the second motor 28 is not in use, the third detection component 26 can be used to detect the accumulation of materials on the entire conveyor belt 5. When the overall rotational resistance of the conveyor belt 5 is too large, the conveyor belt 5 stops working, so that the device can ensure that the material accumulation on the entire conveyor belt is not too much. The second conductive plate 15 can also be used to change the distance between the first conductive plate 14 and the third conductive plate 16, thereby changing the detection range of the accumulation. When the third conductive plate 16 is docked with the second detection component 19, it can not only increase the detection range, but also reduce the detection sensitivity of the device, thereby adapting to targeted detection of materials of different weights.

[0035] Example 2

[0036] like Figures 1-9As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a material accumulation detection device for a belt conveyor.

[0037] In this embodiment, the support seat 1, the first bracket 2 and the second bracket 27 are fixedly connected to form an integral structure. The first bracket 2 and the second bracket 27 are symmetrically distributed on both sides of the conveyor belt 5. There is a gap between the conveyor belt 5 and the first conductive plate 14 to ensure that the conveyor belt 5 will not affect the first conductive plate 14 during normal operation. The first bracket 2 and the second bracket 27 are used to support both sides of the conveyor belt 5.

[0038] In this embodiment, a guide rod 24 is fixedly provided on the first bracket 2. The guide rod 24 passes through the interior of the connecting plate 23. The connecting plate 23 and the guide rod 24 are perpendicular to each other. The guide rod 24 ensures that the lower half of the connecting plate 23 is supported, ensuring that the connecting plate 23 can move smoothly, thereby ensuring the overall stability of the device.

[0039] In this embodiment, the threads on both sides of the screw 12 rotate in opposite directions, and the screw 12 and the support seat 1 are rotationally connected. The first slide 8 and the second slide 9 both form a sliding structure between the screw 12 and the support seat 1. Through the sliding structure on the device, when the screw 12 rotates, the first slide 8 and the second slide 9 can move toward each other or back to back, thereby changing the distance between the conductive plates on both sides of the device. When the distance increases, a larger material weight is required to press the two sets of conductive plates down to contact, thereby changing the overall material accumulation detection sensitivity of the device.

[0040] In this embodiment, the first detection component 13 includes an outer sleeve 1301 fixedly connected to the first connecting plate 10 and the second connecting plate 11, a connecting shaft 1303 is rotatably installed in the outer sleeve 1301, a torsion spring 1302 is fixedly connected between the outer sleeve 1301 and the connecting shaft 1303, and a third connecting plate 1304 is fixedly connected to the connecting shaft 1303. The torsion spring 1302 can provide rotational resistance to the connecting shaft 1303, so that when the third connecting plate 1304 on the device is under pressure, the connecting shaft 1303 rotates in the outer sleeve 1301, and automatically resets after being unpressurized.

[0041] In this embodiment, the first conductive plate 14 is provided with a first docking groove 17 for docking with the third connecting plate 1304, and the third conductive plate 16 forms a sliding structure with the first conductive plate 14 through the second conductive plate 15. The third conductive plate 16 is provided with a second docking groove 18 for docking with the second detection component 19. The first conductive plate 14 can slide on the third connecting plate 1304 through the first docking groove 17, and the third conductive plate 16 can slide on the first conductive plate 14 through the second conductive plate 15, thereby changing the material accumulation detection range of the device.

[0042] In this embodiment, the first conductive plate 14, the second conductive plate 15 and the third conductive plate 16 are all bent, and the first conductive plate 14, the second conductive plate 15 and the third conductive plate 16 are evenly spaced on the first connecting plate 10 and the second connecting plate 11. The equally spaced second conductive plates 15 and the third conductive plates 16 can be detected in different areas, thereby ensuring the overall detection accuracy of the device.

[0043] In this embodiment, the second detection component 19 and the first detection component 13 have the same structure, and the second connecting plate 11 is connected in the same manner as the second detection component 19 and the first detection component 13. When the first detection component 13 and the second detection component 19 are docked, the weight of the material required to press down the first detection component 13 and the second detection component 19 increases, so that the device can not only increase the detection range, but also reduce the detection sensitivity when the material weight is heavier.

[0044] In this embodiment, the third detection component 26 includes a rotating shaft 2601 fixedly connected to the output shaft of the first motor 25, a first connecting rod 2602 fixedly connected to the rotating shaft 2601, a second connecting rod 2603 fixedly connected around the first connecting rod 2602, a rotating block 2604 is provided on the outer side of the second connecting rod 2603, the rotating block 2604 and the rotating plate 21 are rotatably connected, a groove 2605 is provided on the rotating plate 21, a clamping block 2606 is fitted in the groove 2605, a pressure plate 2609 is slidably installed around the rotating block 2604, and a spring 2607 is fixedly connected between the clamping block 2606 and the pressure plate 2609. Figure 4 As shown, the rotating shaft 2601 is used to drive the first connecting rod 2602 to rotate. When the first connecting rod 2602 gradually approaches the rotating block 2604, the second connecting rod 2603 can abut against the pressure plate 2609. The pressure plate 2609 can abut against the spring 2607 to change the compression degree of the spring 2607, thereby changing the degree of tightness between the clamping block 2606 and the inner wall of the groove 2605. At this time, the rotation of the rotating block 2604 can drive the rotating plate 21 to rotate, and when the material transported by the entire device is sufficient to increase the rotation resistance of the rotating plate 21, the rotating block 2604 can slide inside the rotating plate 21, so that the device can detect whether there is too much material accumulated, and can also detect whether the material weight is too heavy through the rotation resistance of the roller.

[0045] In this embodiment, a cross groove 2608 is provided on the rotating block 2604 for the first connecting rod 2602 and the second connecting rod 2603 to move. The distance between the second connecting rod 2603 and the first connecting rod 2602 gradually increases from the side close to the cross groove 2608 to the side away from the cross groove 2608. The second connecting rod 2603 can gradually press against the inner wall of the cross groove 2608 as the first connecting rod 2602 moves, so that the material accumulation situation can be detected subsequently through the rotational resistance of the roller.

[0046] Specifically, the present invention is a material accumulation detection device for a belt conveyor. First, as Figures 1-6 As shown, the support base 1, the first bracket 2 and the second bracket 27 on the device are used to support the entire device. When only the deposits on the conveyor belt 5 are detected, the first roller 3 is driven to rotate by the second motor 28, thereby driving the conveyor belt 5 to work. When the device is in use, the screw 12 can be rotated to make the first slide 8 and the second slide 9 on both sides of the device move toward or away from each other, and the spacing between the first connecting plate 10 and the second connecting plate 11 changes, thereby changing the spacing between the two groups of first conductive plates 14 on the left and right sides of the device. When the spacing between the two groups of first conductive plates 14 is close enough, the material on the conveyor belt 5 only needs a small weight to press down the two groups of first conductive plates 14, so that the two groups of first conductive plates 14 of the bent structure abut against each other. After the two groups of first conductive plates 14 abut against each other, as shown Figure 7 As shown, the power source 6 energizes the warning light 7 via two interconnected first conductive plates 14. This increases the sensitivity of material accumulation detection. When the two sets of first conductive plates 14 are spaced apart, sufficient material accumulation on the conveyor belt 5 is required for the light to illuminate. The device can adjust the spacing between the first and third conductive plates 14, 16, via the second conductive plate 15, thereby varying the detection range of the material weight on the conveyor belt 5. When the first conductive plates 14 are compressed, the third connecting plate 1304 of the folded structure rotates, causing the connecting shaft 1303 to rotate within the outer sleeve 1301. The torsion spring 1302 automatically resets the connecting shaft 1303 when it is no longer compressed.

[0047] like Figure 1-Figure 5 and Figure 7-Figure 9 As shown, the position of the first conductive plate 14 can be changed through the first docking slot 17. When the second docking slot 18 on the third conductive plate 16 docks with the second detection component 19, the detection range of the device can be extended and the detection position of the entire device can be changed. At the same time, since the first detection component 13 and the second detection component 19 have the same structure, when the first detection component 13 is indirectly docked with the second detection component 19 through the third conductive plate 16, the weight of the material required to press the first conductive plate 14 can be increased, thereby changing the sensitivity of the device's accumulation detection, which is suitable for conveying and detecting materials with heavier weights. Figure 4As shown, the device can extend or shorten the electric push rod 22 to make the connecting plate 23 slide on the guide rod 24, and drive the rotating shaft 2601 and the first connecting rod 2602 to rotate through the first motor 25. When the first connecting rod 2602 gradually approaches the rotating block 2604, the second connecting rod 2603 can abut against the pressure plate 2609, and the pressure plate 2609 can abut against the spring 2607 to change the compression degree of the spring 2607, thereby changing the degree of tightness between the block 2606 and the inner wall of the groove 2605. At this time, the rotation of the rotating block 2604 can drive the rotating plate 21 to rotate, and when the material transported by the entire device is sufficient to increase the rotation resistance of the rotating plate 21, the rotating block 2604 can slide inside the rotating plate 21, and the rotating plate 21 and the second roller 4 remain stationary, so that the device can detect local excessive accumulation of materials, and can also detect whether the overall weight of the materials is too large through the rotation resistance of the rollers.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A material accumulation detection device for a belt conveyor, comprising a support base (1), characterized in that: The support seat (1) is provided with a first bracket (2) and a second bracket (27), the second bracket (27) is provided with a second motor (28), the output shaft of the second motor (28) is fixedly connected to the first roller (3), the first bracket (2) is rotatably provided with a second roller (4), the first roller (3) and the second roller (4) are provided with a conveyor belt (5), the support seat (1) is provided with a first slide plate (8) and a second slide plate (9) slidably provided with a screw (12) threadedly provided on the first slide plate (8) and the second slide plate (9), the upper part of the first slide plate (8) is fixedly connected to the first connecting plate (10), the upper part of the second slide plate (9) is fixedly connected to the second connecting plate (11), the first connecting plate (10) and the second connecting plate (11) are both provided with a first detection component (13), the first detection component (13) is provided with a first conductive plate (14), the first conductive plate (14) is fixedly connected to the second conductive plate (1 5), a third conductive plate (16) is slidably connected to the outer side of the second conductive plate (15), a second detection component (19) is installed between the third conductive plate (16) and the second connecting plate (11), a power supply (6) and an alarm light (7) are installed on the support seat (1), the power supply (6) is connected to the first conductive plate (14) on the second connecting plate (11), the alarm light (7) is connected to the first conductive plate (14) on the first connecting plate (10), a connecting block (20) is installed on the first bracket (2), a rotating plate (21) is rotatably connected to the connecting block (20), the rotating plate (21) and the second rotating roller (4) are fixedly connected, an electric push rod (22) is fixedly provided on the first bracket (2), a connecting plate (23) is fixedly connected to the electric push rod (22), a first motor (25) is fixedly installed on the connecting plate (23), and the output shaft of the first motor (25) is connected to the third detection component (26); The threads on both sides of the screw (12) rotate in opposite directions, the screw (12) and the support seat (1) are rotationally connected, and the first slide plate (8) and the second slide plate (9) both form a sliding structure between the screw (12) and the support seat (1); The first detection assembly (13) comprises an outer bushing (1301) fixedly connected to the first connecting plate (10) and the second connecting plate (11); a connecting shaft (1303) is rotatably mounted in the outer bushing (1301); a torsion spring (1302) is fixedly connected between the outer bushing (1301) and the connecting shaft (1303); and a third connecting plate (1304) is fixedly connected to the connecting shaft (1303); The first conductive plate (14) is provided with a first docking groove (17) for docking with the third connecting plate (1304); the third conductive plate (16) forms a sliding structure between the second conductive plate (15) and the first conductive plate (14); and the third conductive plate (16) is provided with a second docking groove (18) for docking with the second detection assembly (19); The first conductive plate (14), the second conductive plate (15) and the third conductive plate (16) are all bent, and the first conductive plate (14), the second conductive plate (15) and the third conductive plate (16) are evenly spaced on the first connecting plate (10) and the second connecting plate (11).

2. The material accumulation detection device for a belt conveyor according to claim 1, characterized in that: The support seat (1), the first bracket (2) and the second bracket (27) are fixedly connected to form an integral structure; the first bracket (2) and the second bracket (27) are symmetrically distributed on both sides of the conveyor belt (5); and a gap exists between the conveyor belt (5) and the first conductive plate (14).

3. The material accumulation detection device for a belt conveyor according to claim 1, characterized in that: A guide rod (24) is fixedly provided on the first bracket (2), and the guide rod (24) passes through the interior of the connecting plate (23), and the connecting plate (23) and the guide rod (24) are perpendicular to each other.

4. The material accumulation detection device for a belt conveyor according to claim 1, characterized in that: The second detection component (19) and the first detection component (13) have the same structure, and the second connecting plate (11) is connected in the same manner as the second detection component (19) and the first detection component (13).

5. The material accumulation detection device for a belt conveyor according to claim 1, characterized in that: The third detection component (26) includes a rotating shaft (2601) fixedly connected to the output shaft of the first motor (25), a first connecting rod (2602) fixedly connected to the rotating shaft (2601), a second connecting rod (2603) fixedly connected around the first connecting rod (2602), a rotating block (2604) is provided on the outer side of the second connecting rod (2603), the rotating block (2604) and the rotating plate (21) are rotatably connected, a groove (2605) is provided on the rotating plate (21), a clamping block (2606) is fitted in the groove (2605), and a pressure plate (2609) is slidably installed around the rotating block (2604), and a spring (2607) is fixedly connected between the clamping block (2606) and the pressure plate (2609).

6. The material accumulation detection device for a belt conveyor according to claim 5, characterized in that: The rotating block (2604) is provided with a cross groove (2608) for the first connecting rod (2602) and the second connecting rod (2603) to move, and the distance between the second connecting rod (2603) and the first connecting rod (2602) gradually increases from the side close to the cross groove (2608) to the side away from the cross groove (2608).

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