Insertion type coal sampling device for blanking silo

Abstract

This utility model relates to an insertion-type coal sampling device for a silo, belonging to the field of coal sampling technology. It includes: a silo with a sampling hole penetrating its side wall, and an openable / closable cover plate rotatably connected to the outside of the sampling hole; a sampler including a handle, a side disc, and a U-shaped collection bucket, the side disc being connected to the rear end of the handle, and the U-shaped collection bucket being fixedly connected to the rear side of the side disc. The U-shaped collection bucket is inserted into the sampling hole and intercepts and collects the coal falling inside the silo. By opening a sampling hole in the side wall of the silo, during sampling, the sampling worker only needs to insert the U-shaped collection bucket through the sampling hole into the silo to intercept and collect the falling coal, thus completing the sampling work conveniently and efficiently. This operation not only improves sampling efficiency but also greatly reduces operational difficulty and significantly improves operational safety during sampling, avoiding the mechanical entanglement risk associated with traditional belt sampling.

Description

Technical Field

[0001] This utility model relates to the field of coal sampling technology, and in particular to an insertion-type coal sampling device for a material silo. Background Technology

[0002] During the coal preparation process in the coal preparation workshop, the coal in the coal blending bin is weighed according to a certain ratio using a belt scale, and then dropped onto the lower belt via a discharge silo, and then transported by the belt to the next process silo. During the belt transport of coal, sampling workers from the quality testing department need to regularly sample the coal on the belt to ensure that the actual quality indicators of the coal meet production requirements.

[0003] However, in the actual coal sampling process, sampling workers need to use sampling shovels at close range while the conveyor belt is running. This process poses a serious risk of mechanical entanglement and is not convenient enough. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides an insertion-type coal sampling device for a material silo. The technical solution of this utility model is as follows:

[0005] An insertion-type coal sampling device for a material silo includes:

[0006] The silo has a sampling hole through its side wall, and an openable and closable cover plate is rotatably connected to the outside of the sampling hole.

[0007] The sampler includes a handle, a side disc, and a U-shaped collection bucket. The side disc is connected to the rear end of the handle, and the U-shaped collection bucket is fixedly connected to the rear side of the side disc. The U-shaped collection bucket is inserted into the sampling hole and intercepts coal falling into the collection silo.

[0008] A circular scraper has a U-shaped groove through its surface that fits the U-shaped collection bucket. The circular scraper is slidably fitted onto the outside of the U-shaped collection bucket through the U-shaped groove. The handle is equipped with a drive component that can elastically push the circular scraper from the front end of the U-shaped collection bucket to its rear end. The handle is also equipped with a limiting component for limiting the circular scraper to the front end of the U-shaped collection bucket.

[0009] Optionally, a shaft is fixedly connected to the side wall of the silo above the sampling hole, an ear plate is fixedly connected to the upper end of the cover plate, the ear plate is rotatably connected to the shaft, and a lever is fixedly connected to the lower front end of the cover plate.

[0010] Optionally, a limiting threaded post one is fixedly connected to the side wall of the silo below the sampling hole, and a limiting threaded post two is fixedly connected to the side wall of the silo above and to the left of the sampling hole. A limiting plate is fixedly connected to the lower end of the cover plate. A limiting groove one that mates with the limiting threaded post one is opened through the left side of the surface of the limiting plate, and a limiting groove two that mates with the limiting threaded post two is opened through the right side of the surface of the limiting plate. Locking nuts are threaded onto the outer sides of both the limiting threaded post one and the limiting threaded post two.

[0011] Optionally, the handle includes an inner handle that is hollow and open at both the front and rear ends, and an outer handle that is hollow and open at the rear end. The inner handle is fixedly connected to the middle position of the front side of the side disc. A central hole is formed through the center of the surface of the side disc. The rear end opening of the outer handle is threaded onto the front end of the inner handle. The driving component includes a push rod and a long spring. The push rod is fixedly connected to the center position of the front side of the circular scraper, and the push rod is slidably connected between the inner handle and the central hole. A mounting groove is formed on the front end face of the push rod. The long spring is located inside the mounting groove. The rear end of the long spring abuts against the rear end of the mounting groove, and the front end of the long spring abuts against the inner front end of the outer handle.

[0012] Optionally, a limiting ring is fixedly sleeved on the outer side of the front end of the push rod.

[0013] Optionally, the upper surface of the inner handle has a through hole, and the rear end of the upper surface of the push rod has a limiting hole. The limiting component includes a fixed seat, an end cap, and a movable plate, all with openings at the top and bottom. The fixed seat is fixedly connected to the upper end of the inner handle and located above the through hole. The end cap is detachably fastened to the upper opening of the fixed seat. The movable plate slides longitudinally inside the fixed seat. A limiting pin is fixedly connected to the lower surface of the movable plate. A movable rod is fixedly connected to the middle position of the upper surface of the movable plate. A movable hole is through the surface of the end cap. The movable rod passes through the movable hole and extends to the top of the end cap. Two sets of short springs abut against the upper surface of the movable plate. The two sets of short springs are located on both sides of the movable rod. The upper ends of the short springs abut against the inner top wall of the end cap. A pull rod is detachably connected to the upper end of the movable rod. The limiting pin passes through the through hole and is elastically engaged in the limiting hole under the elastic action of the short springs.

[0014] Optionally, the end cap is fixed to the fixed base by screws, and the pull rod is fixed to the movable rod by screws.

[0015] All of the above optional technical solutions can be combined arbitrarily, and this utility model does not provide a detailed description of the structure after each combination.

[0016] The beneficial effects of this utility model through the above solution are as follows:

[0017] This invention utilizes sampling holes created on the side wall of the silo. During sampling, workers simply insert a U-shaped sampling bucket through the sampling hole into the silo to intercept and collect the falling coal, thus completing the sampling work conveniently and efficiently. This operation not only improves sampling efficiency but also significantly reduces operational difficulty and greatly enhances operational safety, avoiding the mechanical entanglement risks associated with traditional belt sampling.

[0018] In addition, after sampling, the sampling workers pour the coal from the U-shaped collection hopper into a collection bag. Then, the limiting device can release the limiting effect on the circular scraper, allowing the circular scraper to slide smoothly from the front end to the rear end of the U-shaped collection hopper in an elastic manner under the action of the driving device, thereby scraping off the coal adhering to the inner wall of the U-shaped collection hopper and avoiding the occurrence of coal residue.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 Schematic diagram of the overall appearance structure of the insertion-type coal sampling device for the material silo provided by this utility model. Figure 1 ;

[0021] Figure 2 Schematic diagram of the overall appearance structure of the insertion-type coal sampling device for the material silo provided by this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the process of inserting the sampler into the sampling hole in this utility model;

[0023] Figure 4 for Figure 3 Right view sectional view;

[0024] Figure 5 This is an exploded structural diagram of the silo and cover plate of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the sampler, circular scraper, driving component and limiting component in this utility model;

[0026] Figure 7 This is a right-side cross-sectional view of the sampler, circular scraper, driving component, and limiting component in this utility model.

[0027] Figure 8 This is an exploded structural diagram of the sampler, circular scraper, and driving component in this utility model;

[0028] Figure 9 This is an exploded structural diagram of the inner handle and the limiting component in this utility model.

[0029] Labels in the diagram: 1. Silo; 11. Sampling hole; 12. Shaft; 13. Limiting threaded post one; 14. Limiting threaded post two; 15. Locking nut; 2. Cover plate; 21. Ear plate; 22. Limiting plate; 221. Limiting groove one; 222. Limiting groove two; 23. Lever; 3. Sampler; 31. Handle; 311. Inner handle; 3111. Through hole; 312. Outer handle; 32. Side disc 321. Center hole; 33. U-shaped collection bucket; 4. Circular scraper; 41. U-shaped groove; 5. Driving component; 51. Push rod; 511. Mounting groove; 512. Limiting hole; 52. Long spring; 53. Limiting ring; 6. Limiting component; 61. Fixed base; 62. End cap; 621. Movable hole; 63. Movable plate; 64. Limiting pin; 65. Movable rod; 66. Short spring; 67. Pull rod. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] Please see Figure 1-9 This utility model provides an insertion-type coal sampling device for a silo, comprising: a silo 1, wherein a sampling hole 11 is provided through the side wall, and an openable and closable cover plate 2 is rotatably connected to the outside of the sampling hole 11. The cover plate 2 can be flipped open during sampling and flipped closed when not sampling.

[0032] The sampler 3 includes a handle 31, a side disc 32, and a U-shaped sampling hopper 33. The side disc 32 is connected to the rear end of the handle 31, and the U-shaped sampling hopper 33 is fixedly connected to the rear side of the side disc 32. The U-shaped sampling hopper 33 is inserted into the sampling hole 11 and intercepts the coal falling into the sampling silo 1. The sampling worker can insert the U-shaped sampling hopper 33 into the silo 1 through the sampling hole 11 using the handle 31. At this time, the coal falling inside the silo 1 will fall into the U-shaped sampling hopper 33, thus completing the sampling work.

[0033] A circular scraper 4 has a U-shaped groove 41 through its surface that fits the U-shaped collecting hopper 33. The circular scraper 4 is slidably fitted onto the outside of the U-shaped collecting hopper 33 through the U-shaped groove 41. A drive component 5 is installed inside the handle 31 to elastically push the circular scraper 4 from the front end to the rear end of the U-shaped collecting hopper 33. A limiting component 6 is installed on the handle 31 to limit the circular scraper 4 to the front end of the U-shaped collecting hopper 33. After the U-shaped collecting hopper 33 has collected a coal sample, the sampling worker needs to remove the U-shaped collecting hopper 33 from the sampling hole 11 and pour the collected coal sample into a collection bag. Next, the sampling worker releases the limiting function of the limiting component 6. At this time, under the action of the driving component 5, the circular scraper 4 will elastically move to the rear end of the U-shaped collection bucket 33, thereby scraping off the residual coal material attached to the inner wall of the U-shaped collection bucket 33. This process can not only effectively remove residual coal material, but also ensure the cleanliness of the U-shaped collection bucket 33 during each sampling process, providing a cleaner working environment for the next sampling, and avoiding the impact of coal material residue on the accuracy of sampling and the reliability of results.

[0034] Furthermore, a shaft 12 is fixedly connected to the side wall of the silo 1 above the sampling hole 11, an ear plate 21 is fixedly connected to the upper end of the cover plate 2, the ear plate 21 is rotatably connected to the shaft 12, and a lever 23 is fixedly connected to the lower front end of the cover plate 2.

[0035] Specifically, when not sampling, the cover plate 2 can close the sampling hole 11 to prevent coal falling into the silo 1 from falling through the sampling hole 11. During sampling, the sampling worker can flip the cover plate 2 using the lever 23 to open the sampling hole 11.

[0036] Furthermore, a limiting threaded post 13 is fixedly connected to the side wall of the silo 1 below the sampling hole 11, and a limiting threaded post 24 is fixedly connected to the side wall of the silo 1 above and to the left of the sampling hole 11. A limiting plate 22 is fixedly connected to the lower end of the cover plate 2. A limiting groove 221 that mates with the limiting threaded post 13 is provided through the left side of the surface of the limiting plate 22, and a limiting groove 222 that mates with the limiting threaded post 24 is provided through the right side of the surface of the limiting plate 22. Locking nuts 15 are threaded onto the outer sides of both the limiting threaded post 13 and the limiting threaded post 24.

[0037] Specifically, when sampling hole 11 is closed, the limiting threaded post 13 is inserted into the inner side of the limiting groove 221. At this time, by tightening the locking nut 15 on the outer side of the limiting threaded post 13, the cover plate 2 can be ensured to be firmly closed. When it is necessary to open sampling hole 11, the sampling worker loosens the locking nut 15 on the outer side of the limiting threaded post 13, and then flips the cover plate 2 until the limiting threaded post 24 is inserted into the inner side of the limiting groove 222. At this time, the locking nut 15 on the outer side of the limiting threaded post 24 can be tightened to fix the position of the cover plate 2 and prevent it from sliding on its own.

[0038] Specifically, the limiting thread post 14 is located to the upper left of the sampling hole 11. Its purpose is to ensure that when the cover plate 2 is opened counterclockwise, even if the locking nut 15 is not tightened, the cover plate 2 will not rotate or slide by its own weight.

[0039] Furthermore, the handle 31 includes an inner handle 311 that is hollow and open at both the front and rear ends, and an outer handle 312 that is hollow and open at the rear end. The inner handle 311 is fixedly connected to the middle position of the front side of the side disc 32. A central hole 321 is opened through the center position of the surface of the side disc 32. The rear end opening of the outer handle 312 is threadedly sleeved on the front end of the inner handle 311. The driving component 5 includes a push rod 51 and a long spring 52. The push rod 51 is fixedly connected to the center position of the front side of the circular scraper 4, and the push rod 51 is slidably connected between the inner handle 311 and the center hole 321. A mounting groove 511 is opened on the front end face of the push rod 51. The long spring 52 is located inside the mounting groove 511. The rear end of the long spring 52 abuts against the rear end of the mounting groove 511, and the front end of the long spring 52 abuts against the inner front end of the outer handle 312.

[0040] Specifically, when the circular scraper 4 is stopped at the front end of the U-shaped collection hopper 33 by the limiting member 6, the long spring 52 is in a compressed state. After the sampling worker has finished emptying the coal in the U-shaped collection hopper 33, the limiting member 6 can be released. At this time, the long spring 52 will restore its deformation, thereby pushing the push rod 51 and the circular scraper 4 to move backward, and then scraping off the residual coal adhering to the inner wall of the U-shaped collection hopper 33.

[0041] Secondly, the circular scraper 4 can also seal the sampling hole 11 during the sampling process (e.g. Figure 3 , Figure 4 (As shown). The specific operating principle is as follows: before inserting the sampling hole 11, the limiting function of the limiting member 6 on the circular scraper 4 can be released. At this time, the circular scraper 4 will be pushed to the rear end of the U-shaped collection bucket 33 under the elastic drive of the driving member 5 (as shown). Figure 2 (As shown). Then, the U-shaped sampling hopper 33 is inserted through the sampling hole 11. Due to the restriction of the sampling hole 11 on the position of the circular scraper 4, the circular scraper 4 will always elastically abut against the outer wall of the silo 1 under the elastic action of the long spring 52, thus effectively preventing coal dust from overflowing due to coal falling onto the U-shaped sampling hopper 33 during the sampling process. After the U-shaped sampling hopper 33 is inserted into place, the circular scraper 4 will be limited again by the limiting member 6, thus limiting the circular scraper 4 to the front end position of the U-shaped sampling hopper 33. In this way, when the sampling worker removes the U-shaped sampling hopper 33, the circular scraper 4 will always be at the front end of the U-shaped sampling hopper 33 under the action of the limiting member 6.

[0042] In addition, the outer handle 312 and the inner handle 311 are connected by threads, which allows for quick disassembly and assembly, and facilitates the maintenance and replacement of the long spring 52.

[0043] Furthermore, a limiting ring 53 is fixedly sleeved on the outer front end of the push rod 51.

[0044] Specifically, when the long spring 52 elastically pushes the push rod 51 backward, the push rod 51 drives the limiting ring 53 to move backward synchronously. When the limiting ring 53 contacts the end face of the inner handle 311, it means that the circular scraper 4 has completed the required backward movement and reached the predetermined position. At this time, the limiting ring 53 effectively prevents the push rod 51 from moving backward further, thereby avoiding excessive movement.

[0045] Furthermore, a through hole 3111 is provided through the upper surface of the inner handle 311, and a limiting hole 512 is provided at the rear end of the upper surface of the push rod 51. The limiting member 6 includes a fixed seat 61 with openings at both the top and bottom, an end cap 62, and a movable plate 63. The fixed seat 61 is fixedly connected to the upper end of the inner handle 311 and located above the through hole 3111. The end cap 62 is detachably fastened to the upper opening of the fixed seat 61. The movable plate 63 is slidably disposed longitudinally inside the fixed seat 61. A limiting pin 64 is fixedly connected to the lower surface of the movable plate 63. The upper surface of the movable plate 63... A movable rod 65 is fixedly connected to the middle position of the end cap 62. A movable hole 621 is opened through the surface of the end cap 62. The movable rod 65 passes through the movable hole 621 and extends to the top of the end cap 62. Two sets of short springs 66 are abutted on the upper surface of the movable plate 63. The two sets of short springs 66 are located on both sides of the movable rod 65. The upper end of the short springs 66 abuts against the inner top wall of the end cap 62. A pull rod 67 is detachably connected to the upper end of the movable rod 65. The limiting pin 64 passes through the through hole 3111 under the elastic action of the short springs 66 and is elastically locked in the limiting hole 512.

[0046] Specifically, when it is necessary to control the circular scraper 4 to scrape away the residual coal adhering to the inner wall of the U-shaped collection bucket 33, the sampling worker can pull the movable rod 65 upward through the pull rod 67. The movable rod 65 drives the movable plate 63 to move upward within the fixed seat 61, thereby disengaging the limiting pin 64 from the limiting hole 512. At this time, the push rod 51 will move backward under the elastic action of the long spring 52, thereby realizing the backward movement of the circular scraper 4.

[0047] Furthermore, during the sampling process, when it is necessary to close the sampling hole 11 using the circular scraper 4, the circular scraper 4 is located at the rear end of the U-shaped collection hopper 33. At this time, the sampling worker inserts the U-shaped collection hopper 33 into the silo 1 from the sampling hole 11. During this process, the circular scraper 4 slides forward relative to the U-shaped collection hopper 33, and the circular scraper 4 compresses the long spring 52 through the push rod 51. As the push rod 51 moves backward relative to the inner handle 311, the limiting hole 512 on the push rod 51 gradually approaches the limiting pin 64 until the circular scraper 4 is in contact with the side disc 32. At this time, the limiting pin 64 is engaged in the limiting hole 512 under the action of the short spring 66, thereby fixing the position of the circular scraper 4.

[0048] Furthermore, the end cap 62 is fixed to the fixed base 61 by screws, and the pull rod 67 is fixed to the movable rod 65 by screws.

[0049] Specifically, the end cap 62 and the fixing base 61 adopt a detachable structure, which facilitates the subsequent maintenance and replacement of the internal components of the fixing base 61. When it is necessary to remove the end cap 62, first separate the pull rod 67 from the movable rod 65, and then remove the screws between the end cap 62 and the fixing base 61, and the end cap 62 can be easily removed.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An insertion-type coal sampling device for a material silo, characterized in that: include: The silo (1) has a sampling hole (11) through its side wall, and an openable and closable cover plate (2) is rotatably connected to the outside of the sampling hole (11). The sampler (3) includes a handle (31), a side disc (32) and a U-shaped collection bucket (33). The side disc (32) is connected to the rear end of the handle (31), and the U-shaped collection bucket (33) is fixedly connected to the rear side of the side disc (32). The U-shaped collection bucket (33) is inserted into the sampling hole (11) and intercepts the coal falling into the collection silo (1). A circular scraper (4) has a U-shaped groove (41) through its surface that is adapted to the U-shaped collection bucket (33). The circular scraper (4) is slidably sleeved on the outside of the U-shaped collection bucket (33) through the U-shaped groove (41). The handle (31) is equipped with a drive component (5) that can elastically push the circular scraper (4) from the front end of the U-shaped collection bucket (33) to its rear end. The handle (31) is equipped with a limiting component (6) for limiting the circular scraper (4) to the front end of the U-shaped collection bucket (33).

2. The insertion-type coal sampling device for a material silo according to claim 1, characterized in that, A shaft (12) is fixedly connected to the side wall of the silo (1) and above the sampling hole (11). An ear plate (21) is fixedly connected to the upper end of the cover plate (2). The ear plate (21) is rotatably connected to the shaft (12). A lever (23) is fixedly connected to the lower front end of the cover plate (2).

3. The insertion-type coal sampling device for a material silo according to claim 2, characterized in that, A limiting threaded post one (13) is fixedly connected to the side wall of the silo (1) and below the sampling hole (11). A limiting threaded post two (14) is fixedly connected to the side wall of the silo (1) and above the left side of the sampling hole (11). A limiting plate (22) is fixedly connected to the lower end of the cover plate (2). A limiting groove one (221) that cooperates with the limiting threaded post one (13) is opened through the left side of the surface of the limiting plate (22). A limiting groove two (222) that cooperates with the limiting threaded post two (14) is opened through the right side of the surface of the limiting plate (22). Locking nuts (15) are threaded on the outer sides of both the limiting threaded post one (13) and the limiting threaded post two (14).

4. The insertion-type coal sampling device for a material silo according to claim 1, characterized in that, The handle (31) includes an inner handle (311) that is hollow and open at both the front and rear ends, and an outer handle (312) that is hollow and open at the rear end. The inner handle (311) is fixedly connected to the middle of the front side of the side disc (32). A central hole (321) is provided through the center of the surface of the side disc (32). The rear end opening of the outer handle (312) is threaded onto the front end of the inner handle (311). The driving component (5) includes a push rod (51) and a long spring (52). The push rod (51) is fixedly connected to the center of the front side of the circular scraper (4), and the push rod (51) is slidably connected to the inner handle (311) and the center hole (321). The front end face of the push rod (51) is provided with a mounting groove (511). The long spring (52) is located inside the mounting groove (511). The rear end of the long spring (52) abuts against the rear end of the mounting groove (511), and the front end of the long spring (52) abuts against the inner front end of the outer handle (312).

5. The insertion-type coal sampling device for a material silo according to claim 4, characterized in that, A limiting ring (53) is fixedly sleeved on the outer side of the front end of the push rod (51).

6. The insertion-type coal sampling device for a material silo according to claim 4, characterized in that, The upper surface of the inner handle (311) has a through hole (3111), and the rear end of the upper surface of the push rod (51) has a limiting hole (512). The limiting member (6) includes a fixed seat (61) with openings at both the top and bottom, an end cap (62), and a movable plate (63). The fixed seat (61) is fixedly connected to the upper end of the inner handle (311) and located above the through hole (3111). The end cap (62) is detachably fastened to the upper opening of the fixed seat (61). The movable plate (63) slides longitudinally inside the fixed seat (61). The lower surface of the movable plate (63) is fixedly connected to a limiting pin (64), and the upper surface of the movable plate (63) is... A movable rod (65) is fixedly connected in the middle position. An movable hole (621) is opened through the surface of the end cap (62). The movable rod (65) passes through the movable hole (621) and extends to the top of the end cap (62). Two sets of short springs (66) abut against the upper surface of the movable plate (63). The two sets of short springs (66) are located on both sides of the movable rod (65). The upper end of the short spring (66) abuts against the inner top wall of the end cap (62). A pull rod (67) is detachably connected to the upper end of the movable rod (65). The limiting pin (64) passes through the through hole (3111) under the elastic action of the short spring (66) and is elastically engaged in the limiting hole (512).

7. The insertion-type coal sampling device for a material silo according to claim 6, characterized in that, The end cap (62) is fixed to the fixed seat (61) by screws, and the pull rod (67) is fixed to the movable rod (65) by screws.

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