A sampler with anti-blocking device

Abstract

The utility model relates to sampling machine technical field, and disclose a sampling machine with prevent blocking device, including conveyer belt, body, motor, sampling discharge gate, conveying screw rod and sampling feed inlet, this sampling machine with prevent blocking device, because the length of pull rod is invariable, make pull rod when rotating and being pulled, the end of pull rod far from the support rod will pull the sliding ring and slide in the inside of top plate, and the sliding ring will pull the sliding bar and slide in the sliding slot together when sliding, make the sliding bar pull the supporting plate and contract into the inside of bottom plate, make the coal mine can enter the inside of bottom plate, subsequently start the cylinder and lift the top plate, the compressed spring will pull back the support rod, make the supporting plate extend from the inside of bottom plate again and hold up the coal mine sample and lift, make when sampling the coal mine above the conveyer belt not produce abrasion to the conveyer belt, and only through four groups of ball and conveyer belt contact, and not adopt the shovel formula shovel coal mine, avoid the conveyer belt and be stopped and be blocked.

Description

Technical Field

[0001] This utility model relates to the field of sampling machine technology, specifically a sampling machine with an anti-clogging device. Background Technology

[0002] A coal mine conveyor belt sampler is a device used to collect coal dust or coal samples from the surface of a conveyor belt in a coal mine. This equipment is crucial for monitoring dust concentration in coal mines, assessing the risk of coal dust explosions, and ensuring safe production in coal mines. The coal mine conveyor belt sampler is an important tool for ensuring safe production in coal mines.

[0003] According to a sampling device for conveyor belts (Announcement No.: CN218211987U) published in the above application, when using a bucket to scoop up coal for sampling, the bottom edge of the bucket can easily scrape against the conveyor belt, causing damage to the conveyor belt. Moreover, when the bucket is in contact with the conveyor belt, it will completely block the subsequent coal conveying, which can easily lead to conveyor belt blockage. Utility Model Content

[0004] The purpose of this invention is to provide a sampling machine with an anti-clogging device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sampling machine with an anti-blocking device, comprising a conveyor belt, a machine body, a motor, a sampling outlet, a conveying screw, and a sampling inlet, wherein a control unit is provided below the machine body to prevent the conveyor belt from blocking during sampling and to prevent wear on the conveyor belt;

[0006] The control unit includes a cylinder, a connecting plate, a top plate, a bottom plate, a slide groove, a support rod, a ball bearing, a spring, a sliding ring, a tie rod, a slide rod, a support plate, a hinge rod, a baffle, and a torsion spring. The top of the cylinder is fixedly connected to the inner side of the machine body. The output shaft of the cylinder is fixedly connected to a connecting plate. The side of the connecting plate is fixedly connected to a top plate. The bottom surface of the top plate is fixedly connected to a bottom plate. A slide groove is provided on the surface of the bottom plate.

[0007] Preferably, a support rod runs through the surface of the top plate, and the support rod is slidably connected to the top plate. A ball bearing is provided at the bottom end of the support rod. When the cylinder is activated, the output shaft of the cylinder will drive the top plate to move towards the conveyor belt through the connecting plate. After the top plate moves down a certain distance, it will drive the ball bearing at the bottom of the support rod to contact the conveyor belt. A spring is fixedly connected to the bottom surface of the top plate.

[0008] Preferably, a sliding ring is passed through the top surface of the top plate. Since the length of the pull rod remains constant, when the pull rod rotates and is pulled, the end of the pull rod away from the support rod will pull the sliding ring to slide inside the top plate. When the sliding ring slides, it will pull the sliding rod to slide together in the sliding groove, so that the sliding rod pulls the support plate to retract into the bottom plate, and the sliding ring is slidably connected to the top plate.

[0009] Preferably, a pull rod is passed through and hinged to the top of the support rod. After the ball contactes the conveyor belt, the support rod will gradually rise and compress the spring. When the support rod is lifted, the top of the support rod will drive the pull rod to rise together. The hinged position of the pull rod and the support rod will rotate. The end of the pull rod away from the support rod passes through the inner side of the sliding ring and is hinged to it.

[0010] Preferably, a sliding rod is fixedly connected to the bottom surface of the sliding ring, and the sliding rod passes through a groove opened on the surface of the base plate.

[0011] Preferably, a support plate extends through the inner side of the base plate, and the support plate is slidably connected to the base plate, with the top surface of the support plate fixedly connected to the bottom surface of the slide rod.

[0012] Preferably, a hinge rod is threaded through and hinged to the top surface of the top plate. When the cylinder is activated to raise the top plate, the compressed spring pulls back the support rod, causing the support plate to extend out from the bottom plate again and lift the coal sample. A baffle is threaded through and fixedly connected to the hinge rod, and a torsion spring is fixedly connected between the hinge rod and the top plate.

[0013] Compared with the prior art, this utility model provides a sampling machine with an anti-clogging device, which has the following beneficial effects:

[0014] 1. This sampler with an anti-clogging device, because the length of the pull rod remains constant, causes the end of the pull rod away from the support rod to pull the sliding ring to slide inside the top plate when the pull rod rotates and is pulled. When the sliding ring slides, it pulls the slide rod to slide together in the slide groove, causing the slide rod to pull the tray plate to retract into the bottom plate, allowing the coal sample to enter the inner side of the bottom plate. Then, the cylinder is activated to raise the top plate, and the compressed spring pulls back the support rod, causing the tray plate to extend out from the bottom plate again and lift the coal sample. This prevents wear on the conveyor belt when sampling coal above the conveyor belt, and because the sampler only contacts the conveyor belt through four sets of ball bearings instead of using a bucket to scoop up the coal, it avoids the conveyor belt being blocked.

[0015] 2. The sampling machine with anti-blocking device has a baffle that blocks the coal ore after it enters the inner side of the bottom plate and is supported by the support plate. As the cylinder pulls the top plate to the top, the top of the hinge rod will abut against the inner side of the machine body and drive the baffle to rotate, which compresses the entire control unit and allows the coal ore to enter the sampling inlet smoothly and be conveyed by the conveying screw. This prevents the coal ore from falling off and ensures that the coal ore is conveyed smoothly. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the body of this utility model;

[0018] Figure 3 This is a schematic diagram of the control unit structure of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the top plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the unfolded structure of the base plate of this utility model.

[0021] In the diagram: 1. Conveyor belt; 2. Control unit; 21. Cylinder; 22. Connecting plate; 23. Top plate; 24. Bottom plate; 25. Slide groove; 26. Support rod; 27. Ball bearing; 28. Spring; 29. ​​Sliding ring; 210. Tie rod; 211. Slide rod; 212. Support plate; 213. Hinge rod; 214. Baffle; 215. Torsion spring; 3. Machine body; 4. Motor; 5. Sampling outlet; 6. Conveying screw; 7. Sampling inlet. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: a sampling machine with an anti-blocking device, including a conveyor belt 1, a machine body 3, a motor 4, a sampling outlet 5, a conveying screw 6 and a sampling inlet 7, and a control unit 2 is provided below the machine body 3 to prevent the conveyor belt 1 from being blocked during sampling and to prevent the conveyor belt 1 from being worn.

[0023] The control unit 2 includes a cylinder 21, a connecting piece 22, a top plate 23, a bottom plate 24, a slide groove 25, a support rod 26, a ball bearing 27, a spring 28, a sliding ring 29, a pull rod 210, a slide rod 211, a support plate 212, a hinge rod 213, a baffle 214, and a torsion spring 215. The top of the cylinder 21 is fixedly connected to the inner side of the machine body 3. The output shaft of the cylinder 21 is fixedly connected to the connecting piece 22. The side of the connecting piece 22 is fixedly connected to the top plate 23. The bottom surface of the top plate 23 is fixedly connected to the bottom plate 24. The surface of the bottom plate 24 is provided with a slide groove 25. A support rod 26 runs through the surface of the top plate 23, and the support rod 26 is slidably connected to the top plate 23. A ball bearing 27 is provided at the bottom end of the support rod 26. When the cylinder 21 is activated, the output shaft of the cylinder 21 will drive the top plate 23 to move towards the conveyor belt 1 through the connecting piece 22. After the top plate 23 moves downward a certain distance, it will cause the ball bearing 27 at the bottom of the support rod 26 to contact the conveyor belt 1. A spring 28 is fixedly connected to the bottom surface of the top plate 23. A sliding ring 29 runs through the top surface of the top plate 23. Since the length of the pull rod 210 remains unchanged, when the pull rod 210 rotates and is pulled, the end of the pull rod 210 away from the support rod 26 will pull the sliding ring 29 to slide inside the top plate 23. When the sliding ring 29 slides, it will pull the sliding rod 211 to slide together in the sliding groove 25, so that the sliding rod 211 pulls the support plate 212 to retract into the bottom plate 24. The sliding ring 29 is slidably connected to the top plate 23. A pull rod 210 is threaded through and hinged to the top of the support rod 26. After the ball bearing 27 contacts the conveyor belt 1, the support rod 26 gradually rises and compresses the spring 28. When the support rod 26 is lifted, its top will drive the pull rod 210 to rise as well. The hinged position of the pull rod 210 and the support rod 26 will rotate. The end of the pull rod 210 away from the support rod 26 passes through the inner side of the sliding ring 29 and is hinged thereto. A slide rod 211 is fixedly connected to the bottom surface of the sliding ring 29. The slide rod 211 passes through the groove 25 opened on the surface of the base plate 24. A support plate 212 passes through the inner side of the base plate 24 and is slidably connected to the base plate 24. The top surface of the support plate 212 is fixedly connected to the bottom surface of the slide rod 211. A hinge rod 213 is hinged through and connected to the top surface of the top plate 23. When the cylinder 21 is activated, the top plate 23 is raised. The compressed spring 28 pulls back the support rod 26, causing the support plate 212 to extend out from the bottom plate 24 again and lift the coal sample. This prevents wear on the conveyor belt 1 when sampling the coal above the conveyor belt 1. At the same time, the conveyor belt 1 is only in contact with four sets of ball bearings 27, instead of using a bucket to scoop up the coal, thus avoiding blockage of the conveyor belt 1. A baffle 214 is fixedly connected through the hinge rod 213, and a torsion spring 215 is fixedly connected between the hinge rod 213 and the top plate 23.

[0024] Based on the above implementation method, when sampling the coal mine above the conveyor belt 1, the coal mine is first placed on the conveyor belt 1 after mining. When sampling the coal mine above the conveyor belt 1 is required, the cylinder 21 is activated. The output shaft of the cylinder 21 will drive the top plate 23 to move towards the conveyor belt 1 through the connecting piece 22. After the top plate 23 moves downward a certain distance, it will drive the ball bearing 27 at the bottom of the support rod 26 to contact the conveyor belt 1. At this time, there is still a certain gap between the bottom plate 24 and the conveyor belt 1. After the ball bearing 27 contacts the conveyor belt 1, the support rod 26 will gradually rise and compress the spring 28. When the support rod 26 is lifted, the top of the support rod 26 will drive the pull rod 210 to rise together. The hinge position between the pull rod 210 and the support rod 26 will rotate. With the length remaining constant, when the pull rod 210 rotates and is pulled, the end of the pull rod 210 away from the support rod 26 will pull the sliding ring 29 to slide inside the top plate 23. When the sliding ring 29 slides, it will pull the sliding rod 211 to slide together in the sliding groove 25, so that the sliding rod 211 pulls the support plate 212 to retract into the bottom plate 24, allowing the coal to enter the inside of the bottom plate 24. Then, the cylinder 21 is activated to raise the top plate 23, and the compressed spring 28 will pull back the support rod 26, so that the support plate 212 will extend out from the bottom plate 24 again to lift the coal sample. This ensures that the coal sample above the conveyor belt 1 will not be worn. At the same time, the coal is only in contact with the conveyor belt 1 through four sets of balls 27, instead of using a bucket to scoop up the coal, thus avoiding the conveyor belt 1 being blocked.

[0025] Furthermore, after the coal enters the inner side of the bottom plate 24 and is supported by the support plate 212, the baffle 214 will block the coal being sampled. As the cylinder 21 pulls the top plate 23 to the top, the top of the hinge rod 213 will abut against the inner side of the machine body 3, causing the baffle 214 to rotate, thus compressing the entire control unit 2, allowing the coal to smoothly enter the sampling inlet 7 and be conveyed by the conveying screw 6. This prevents the coal from falling off while ensuring that the coal is smoothly conveyed.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A sampling machine with an anti-clogging device, comprising a conveyor belt (1), a machine body (3), a motor (4), a sampling outlet (5), a conveying screw (6), and a sampling inlet (7), characterized in that: The lower part of the body (3) is provided with a control unit (2) to prevent the conveyor belt (1) from getting blocked during sampling and to prevent the conveyor belt (1) from wearing out. The control unit (2) includes a cylinder (21), a connecting piece (22), a top plate (23), a bottom plate (24), a slide groove (25), a support rod (26), a ball bearing (27), a spring (28), a sliding ring (29), a pull rod (210), a slide rod (211), a support plate (212), a hinge rod (213), a baffle (214), and a torsion spring (215). The top of the cylinder (21) is fixedly connected to the inner side of the machine body (3). The output shaft of the cylinder (21) is fixedly connected to the connecting piece (22). The side of the connecting piece (22) is fixedly connected to the top plate (23). The bottom surface of the top plate (23) is fixedly connected to the bottom plate (24). The surface of the bottom plate (24) is provided with a slide groove (25).

2. A sampling machine with an anti-clogging device according to claim 1, characterized in that: A support rod (26) runs through the surface of the top plate (23). The support rod (26) is slidably connected to the top plate (23). A ball bearing (27) is provided at the bottom end of the support rod (26). A spring (28) is fixedly connected to the bottom surface of the top plate (23).

3. A sampling machine with an anti-clogging device according to claim 2, characterized in that: A sliding ring (29) is passed through the top surface of the top plate (23), and the sliding ring (29) is slidably connected to the top plate (23).

4. A sampling machine with an anti-clogging device according to claim 1, characterized in that: A pull rod (210) is passed through and hinged to the top of the support rod (26), and the end of the pull rod (210) away from the support rod (26) passes through the inner side of the sliding ring (29) and is hinged to it.

5. A sampling machine with an anti-clogging device according to claim 4, characterized in that: The bottom surface of the sliding ring (29) is fixedly connected to a sliding rod (211), which passes through the groove (25) opened on the surface of the base plate (24).

6. A sampling machine with an anti-clogging device according to claim 1, characterized in that: The inner side of the base plate (24) is provided with a support plate (212), and the support plate (212) is slidably connected to the base plate (24). The top surface of the support plate (212) is fixedly connected to the bottom surface of the slide rod (211).

7. A sampling machine with an anti-clogging device according to claim 1, characterized in that: A hinge rod (213) is passed through and hinged to the top surface of the top plate (23). A baffle (214) is passed through and fixedly connected to the hinge rod (213). A torsion spring (215) is fixedly connected between the hinge rod (213) and the top plate (23).

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