Bulk material sampler

Abstract

The utility model discloses a bulk material sampler which comprises a fixing frame, a winding cylinder, a sampling cylinder and a hammering assembly, the winding cylinder is rotationally arranged on the fixing frame, a pull rope is wound on the surface of the winding cylinder, one end of the pull rope is connected with the sampling cylinder and used for taking bulk materials in a silo, and a feeding port is formed in the side wall of the sampling cylinder so that the bulk materials can be taken conveniently. Hammering assemblies are also arranged on the pull rope and are arranged at the top of the sampling barrel at intervals; the sampling barrel can be conveniently put into a silo by winding and unwinding a pull rope through a winding barrel, the sampling barrel can be suitable for silo structures with various heights, and meanwhile, the sampling barrel can be hammered into bulk materials through a hammering assembly, so that a feeding opening is lower than the surface of the bulk materials, and sampling is carried out; the pull rope is arranged on the winding cylinder and is matched with the sampling cylinder and the hammering assembly, so that the sampling device is not only suitable for sampling of silos with different heights, but also convenient to store, and the pull rope can be stored only by rotating the winding cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of silo material sampling, in particular to a bulk material sampler. Background Art

[0002] Silos are a common storage method for bulk materials, such as grain, sand, or granular fertilizer. However, there are occasions when the silo is not full and sampling is required to test the bulk material's quality. This can occur when the surface quality of the bulk material needs to be tested after some bulk material has been loaded or unloaded, or when partial storage of bulk materials is necessary due to various practical conditions. Furthermore, grain ships or other bulk materials may also require sampling when their silos, vessels, or cargoes are not fully filled. When the silo (hold) is not full, sampling is more difficult due to the large distance between the bulk material surface and the silo sampling port (or the hatch of the grain carrier).

[0003] Common bulk material sampling devices include cannula samplers and automatic suction samplers, but the cannula type is generally handheld. When sampling larger silos or ship silos, it is necessary to connect rods to increase the length of the cannula to reach the surface of the bulk material and take samples, which makes the sampling operation complicated. The automatic suction sampler generally sucks bulk materials through a pipeline with negative pressure. When sampling larger silos or ship silos, a longer pipeline is required, and the sample needs to be fed into the silo little by little, and it is not convenient to store after sampling. The above two commonly used bulk material sampling devices are not convenient for sampling larger silos or ship silos. Not only is the sampling operation complicated, but the sampling devices are also not convenient to store.

[0004] In view of this, the existing technology still needs to be improved and developed. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a bulk material sampler, aiming to solve the problem of complex sampling operation of the existing commonly used bulk material sampling devices.

[0006] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0007] A bulk material sampler, comprising:

[0008] Fixed frame;

[0009] A winding drum is rotatably mounted on the fixing frame; a pull rope is wound around the surface of the winding drum;

[0010] A sampling cylinder is connected to the bottom of the pull rope; a feeding port is provided on the side wall of the sampling cylinder;

[0011] The hammer assembly is arranged on the pull rope; the hammer assembly is arranged at intervals on the top of the sampling cylinder.

[0012] Furthermore, the hammer assembly includes:

[0013] A hanging hammer is located at the top of the sampling cylinder;

[0014] A plurality of first connecting ropes have one end arranged on the surface of the pendulum and the other end arranged on the pull rope.

[0015] Furthermore, the pendulum is annular, and the pull ropes of the sampling tube and the winding tube pass through the pendulum.

[0016] Furthermore, a plurality of fixing buckles are radially arranged inside the hammer, and the plurality of fixing buckles protrude from the surface of the hammer. A fixing hole is provided in the fixing buckle, and a first circular stopper is provided at one end of the first connecting rope. The first connecting rope passes through the fixing hole so that the first circular stopper abuts against the fixing buckle.

[0017] Furthermore, the sampling tube includes:

[0018] A conical cylinder, wherein the feed port is provided on the side wall of the conical cylinder;

[0019] A striking plate is provided on the top of the conical cylinder; a through hole is provided in the center of the striking plate;

[0020] The second connecting rope has a second circular stopper at one end and the other end passes through the through hole and is connected to the pull rope; the diameter of the second circular stopper is larger than the diameter of the through hole so that the second circular stopper abuts against the bottom of the striking plate.

[0021] Furthermore, the conical cylinder is a polyhedral conical cylinder.

[0022] Furthermore, a bidirectional connecting piece is provided at one end of the pull rope, and an end of the bidirectional connecting piece away from the pull rope is connected to the first connecting rope and the second connecting rope.

[0023] Furthermore, the winding drum includes:

[0024] A bracket is provided on the top wall of the fixing frame; the bracket is fixed to the fixing frame via a U-shaped clip;

[0025] A drum is rotatably mounted on the bracket and is used to wind the pull rope; wheels are provided at both ends of the drum;

[0026] A rocker, disposed at one end of the drum;

[0027] A suspension member is provided on the bracket; the suspension member cooperates with the wheel disc to prevent the wheel disc from rotating.

[0028] Furthermore, the suspension element includes:

[0029] A crossbar is provided on the bracket; a first blocking hole is provided on the crossbar, and a thread is provided inside the first blocking hole;

[0030] A plurality of second blocking holes are radially arranged on the wheel disc; the first blocking holes correspond to the second blocking holes;

[0031] Yuanbao screw; the Yuanbao screw is threadedly engaged with the first blocking hole; the Yuanbao screw is used to pass through the first blocking hole and the second blocking hole to limit the rotation of the wheel.

[0032] Furthermore, the fixing bracket is fixed to the sampling port of the silo via a U-shaped clip.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] In the utility model, a winding drum is rotatably provided on the fixed frame, and a pull rope is wound on the surface of the winding drum, one end of the pull rope is connected to a sampling drum for taking bulk materials in the silo, and a feeding port is provided on the side wall of the sampling drum to facilitate taking bulk materials, and a hammer assembly is also provided on the pull rope, and the hammer assembly is arranged at intervals on the top of the sampling drum; the sampling drum can be conveniently placed inside the silo by retracting and releasing the pull rope through the winding drum, and can be applicable to silo structures of various heights, and at the same time, the sampling drum can be hammered into the bulk materials through the hammer assembly so that the feeding port is lower than the surface of the bulk materials for sampling; by arranging the pull rope on the winding drum, and cooperating with the sampling drum and the hammer assembly, it is not only suitable for sampling in silos of different heights, but also convenient for storage, and the pull rope can be stored by simply rotating the winding drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0036] Figure 2 This is a schematic diagram of the structure of the hammer assembly of the utility model.

[0037] Figure 3 This is a schematic diagram of the structure of the sampling tube of the utility model.

[0038] Figure 4 This is a schematic diagram of the first circular stopper structure of the present utility model.

[0039] Figure 5 This is a schematic diagram of the support structure of the utility model.

[0040] Figure 6This is a schematic diagram of the roller structure of the utility model.

[0041] Figure 7 This is a schematic diagram of the silo structure of the utility model.

[0042] Figure 8 for Figure 7 A is an enlarged schematic diagram.

[0043] The numbers in the figure are as follows: 1. Fixed frame; 2. Winding drum; 21. Pull rope; 22. Bracket; 23. Drum; 24. Rocker; 25. Wheel; 26. Suspending part; 261. Cross bar; 262. First blocking hole; 263. Yuanbao screw; 264. Second blocking hole; 3. Sampling barrel; 31. Feed port; 32. Conical barrel; 33. Strike plate; 34. Second connecting rope; 35. Second circular stopper; 4. Hammering assembly; 41. Hanging hammer; 42. First connecting rope; 43. Fixing buckle; 44. Fixing hole; 45. First circular stopper; 5. Two-way connector; 6. U-shaped clamp; 7. Silo; 71. Sampling port. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and effect of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] The existing larger silos 7 or the silos 7 on ships are relatively high, and there may be dissatisfaction when bulk materials are loaded therein. At the same time, some of the bulk materials need to be tested for surface quality. Due to their high height, ordinary intubation samplers are generally handheld samplers and cannot be used to sample the high-height silos 7. Automatic suction samplers require longer pipes for sampling. During the sampling process, not only does the pipe need to be placed into the silo 7 little by little, but it is also necessary to manually move the pipe to only extract the surface material of the bulk materials in the silo 7. Moreover, after sampling, the pipe is not convenient to be pulled out and stored. In addition, different lengths of pipes need to be equipped for silos 7 of different heights, which makes sampling complicated.

[0048] The existing commonly used sampling method also includes sampling by pulling a rope in conjunction with a conical bucket. Specifically, an opening is provided at the top of the conical bucket, and a rope is provided on the side of the conical bucket. By connecting a rope collection assembly at one end, the conical bucket can be thrown into the silo 7 and fall on the surface of the bulk material. By pulling the conical bucket back and forth, a small amount of bulk material can flow into the conical bucket, and then the conical bucket can be pulled again. However, this method takes out less material each time, and requires multiple throwing and extraction, which makes the sampling steps cumbersome. Moreover, after the surface of the bulk material is hardened, it cannot be inserted into the interior of the bulk material to take material, which also makes sampling difficult.

[0049] In view of the shortcomings of the prior art, this embodiment provides a bulk material sampler, which can be specifically described as follows:

[0050] As attached Figure 1 , Attachment Figure 7 and attached Figure 8As shown, a bulk material sampler includes a fixing frame 1, a winding drum 2, a sampling drum 3 and a hammer assembly 4. A sampling port 71 is provided on the top of the silo 7. The fixing frame 1 is arranged on the sampling port 71, and a winding drum 2 is rotatably arranged on the fixing frame 1. A pull rope 21 is wound around the winding drum 2, and one end of the pull rope 21 is fixedly arranged on the winding drum 2 to facilitate winding around the winding drum 2. This end is called the fixed end, and the other end of the pull rope 21 is in a free state and can be called the free end. The free end of the pull rope 21 is connected to the sampling drum 3. The sampling drum 3 is smaller than the size of the sampling port 71 of the silo 7. The sampling drum 3 can be placed in the silo 7, and as the winding drum 2 rotates, the sampling drum 3 will fall on the surface of the bulk material in the silo 7 and will penetrate into the bulk material under its gravity. A feeding port 31 is provided on the side wall of the sampling drum 3. When the feeding port 31 is lower than the surface of the bulk material, the bulk material can enter the cavity inside the sampling drum 3.

[0051] Furthermore, a hammer assembly 4 is also provided on the pull rope 21. Due to the extrusion state of the bulk material, when the sampling cylinder 3 falls on the surface of the bulk material and under its gravity, the sampling cylinder 3 may be inserted into the bulk material to a depth less than the height between the feed port 31 and the bottom of the sampling cylinder 3. At this time, the sampling cylinder 3 can be hammered into the bulk material by the hammer assembly 4 on the pull rope 21, so that the feed port 31 is located below the surface of the bulk material for material collection.

[0052] Furthermore, the bulk material may be grain, sand, or granular fertilizer, etc., thereby improving the practicality of the bulk material sampler.

[0053] Specifically, as attached Figure 7 and attached Figure 8 When the silo 7 is in a high height, the bulk material sampler can be easily transported through the storage box. When the material is to be taken out, the fixing frame 1 is first fixed on the sampling port 71 of the silo 7, and then the winding drum 2 is fixed on the fixing frame 1. Then, the sampling drum 3, the hammer assembly 4 and the free end of the pull rope 21 are connected, and the sampling drum 3 and the hammer assembly 4 are slowly placed into the sampling port 71. Then, the sampling drum 3 is lowered to the surface of the bulk material by rotating the winding drum 2, and the sampling drum 3 is hammered into the interior of the bulk material by the hammer assembly 4. The bulk material enters the interior of the sampling drum 3 through the feed port 31, and then the winding drum 2 is rotated in the opposite direction to lift the sampling drum 3 to the outside of the silo 7 to complete the sampling. At the same time, the fixing frame 1 can be fixed on multiple sampling ports 71 through the above operations to sample different positions of the bulk material in the silo 7.

[0054] In this embodiment, the fixing frame 1 is formed by welding stainless steel pipes and is in the shape of a rectangular parallelepiped. The bottom of the fixing member is fixed to the sampling port 71 of the silo 7 by a U-shaped clamp 6 .

[0055] In this application, an embodiment is shown in the attached Figure 2 As shown, the hammer assembly 4 includes a hammer 41 and multiple first connecting ropes 42. The hammer 41 is located at the top of the sampling tube 3 and is arranged at intervals to facilitate the hammer 41 to fall and hammer the sampling tube 3. Multiple first connecting ropes 42 are radially arranged on the surface of the hammer 41. The multiple first connecting ropes 42 are at the same distance from the center of the hammer 41 to ensure the stability of the hammer 41. At the same time, the multiple first connecting ropes 42 have the same length and are connected to the pull rope 21 at one point.

[0056] Specifically, when the sampling tube 3 descends to the surface of the bulk material, it will be inserted into the surface of the bulk material under its gravity. At the same time, the hanging hammer 41 is located at the top of the sampling tube 3. By quickly loosening the pull rope 21, the hanging hammer 41 can be hit on the sampling tube 3 to hammer the sampling tube 3 so that the sampling tube 3 is inserted into the interior of the bulk material. At the same time, by performing the above-mentioned operations multiple times, the sampling tube 3 can be hammered multiple times, and the feed port 31 on the sampling tube 3 is lower than the surface of the bulk material, so as to facilitate the bulk material to enter the sampling tube 3.

[0057] In this embodiment, a gravity sensor is provided at the bottom of the cavity of the sampling cylinder 3. The bulk material sampled in the sampling cylinder 3 will be pressed against the gravity sensor, and then the weight of the bulk material can be detected by the gravity sensor to determine whether the feed port 31 of the sampling cylinder 3 is located below the surface of the bulk material. It can also be used to confirm the weight of the bulk material to prompt the rotation of the winding cylinder 2 and the lifting of the sampling cylinder 3.

[0058] In this embodiment, the pendant 41 is annular and is located at the top of the sampling tube 3. The pull rope 21 of the sampling tube 3 and the winding tube 2 passes through the middle of the pendant 41, which can avoid friction between the connecting rope and the pendant 41 and cause wear or breakage.

[0059] In this embodiment, a plurality of fixing buckles 43 are radially arranged inside the hammer 41, and the tops of the plurality of fixing buckles 43 protrude from the surface of the hammer 41, and a fixing hole 44 is provided inside the fixing buckle 43 protruding from the surface of the hammer 41, and the fixing hole 44 passes through the fixing buckle 43, and a first circular stopper 45 is provided at one end of the first connecting rope 42, and the diameter of the first circular stopper 45 is larger than the diameter of the fixing hole 44, and the other end of the first connecting rope 42 passes through the fixing hole 44 and is connected to the free end of the pull rope 21, so that the first circular stopper 45 is supported on the fixing hole 44, so that the pull rope 21 lifts the hammer 41 through the first connecting rope 42.

[0060] In this application, an embodiment is shown in the attached Figure 3 and attached Figure 4As shown, the sampling tube 3 includes a conical tube 32, a striking plate 33 and a second connecting rope 34. The bottom of the conical tube 32 is conical to facilitate the insertion of the sampling tube 3 into the bulk material. The top of the conical tube 32 is provided with a striking plate 33 for bearing the hammering of the hanging hammer 41. The striking plate 33 is made of wood or other materials that does not produce sparks when colliding with metal, which can avoid sparks when the hanging hammer 41 falls and cause damage to the bulk material. A through hole is provided in the center of the striking plate 33. The second connecting rope 34 is the connecting rope between the sampling tube 3 and the pull rope 21. The second connecting rope 34 passes through the center hole of the hanging hammer 41. A second circular stopper 35 is provided at one end of the second connecting rope 34. The diameter of the second circular stopper 35 is larger than the diameter of the through hole. The second circular stopper 35 is provided at the bottom of the striking plate 33 and abuts against the through hole, so that the striking plate 33 and the conical tube 32 are pulled by the pull rope 21 and the second connecting rope 34.

[0061] In this embodiment, a wireless camera can also be provided at the bottom of the impact plate 33. A wireless Bluetooth module is provided inside the wireless camera, which can be connected to an external mobile phone or computer terminal. The amount of bulk material inside the conical cylinder 32 can be checked through the mobile phone to determine whether to take out the sampling cylinder 3.

[0062] Furthermore, by sending a signal to the wireless camera via the mobile phone, the wireless camera can also take pictures of the bulk materials in the silo 7 to evaluate the quality of the bulk materials in the silo in conjunction with the sampled bulk materials.

[0063] In this embodiment, as shown in the attached Figure 3 and attached Figure 4 As shown, the conical cylinder 32 is a multi-faceted conical cylinder; specifically, the conical cylinder 32 can be formed by a plurality of inclined plates and two adjacent plates are sealed together, and it is in an inverted cone shape.

[0064] Preferably, the conical cylinder 32 can be composed of three plates or four plates, which are more convenient to assemble and weld, while also ensuring that the space inside the conical cylinder 32 is large enough.

[0065] In this embodiment, a two-way connector 5 is provided at the free end of the pull rope 21. The two-way connector 5 is the existing technology. The end of the two-way connector 5 away from the pull rope 21 is connected to the first connecting rope 42 and the second connecting rope 34, so that the pull rope 21 is connected to the first connecting rope 42 and the second connecting rope 34.

[0066] Furthermore, the two-way connecting member 5 can also be a hook, and the ends of the pull rope 21, the first connecting rope 42 and the second connecting rope 34 that are close to each other are bent and fixed by a fixing member (the fixing member belongs to the existing technology and can be a steel wire winding or an existing rope tying device) to form a hanging hole, and the hanging hole can be hung in the two-way connecting member 5. The two-way connecting member 5 can be a buckle to facilitate the disassembly of the pull rope 21 and the first connecting rope 42 and the second connecting rope 34.

[0067] In this embodiment, the pull rope 21, the first connecting rope 42 and the second connecting rope 34 are all steel wire ropes, and the surface of the pull rope 21 is provided with rubber coating to improve the wear resistance of the pull rope 21 to prevent the pull rope 21 from being damaged by long-term wear.

[0068] In this application, an embodiment is shown in the attached Figure 5 and attached Figure 6 As shown, the winding drum 2 includes a bracket 22, a roller 23, a rocker 24 and a suspension member 26. The bracket 22 is arranged at the top of the fixed frame 1 and is fixed by a U-shaped clamp 6. The U-shaped clamp 6 is a prior art, and the bracket 22 includes two support rods and four auxiliary rods. The support rods are located on the surface of the fixed frame 1. Each support rod is provided with an auxiliary rod inclined toward each other at both ends. A rotating shaft is provided on the top of the two auxiliary rods. The two auxiliary rods and the support rods form a triangular surface, and the triangular surface is perpendicular to the surface of the fixed frame 1; the roller 23 is rotatably arranged on two rotating shafts, and a wheel disc 25 is provided at both ends of the roller 23, which can be used to prevent the pull rope 21 from detaching from the roller 23. At the same time, the wheel disc 25 rotates with the roller 23; a suspension member 26 is also provided on the bracket 22, and the suspension member 26 cooperates with the wheel disc 25 to prevent the wheel disc 25 from rotating; a rocker 24 is coaxially provided at one end of the roller 23, and the roller 23 is conveniently rotated by the rocker 24.

[0069] In this embodiment, the rocker 24 includes a coaxial rod and an off-axis rod. The coaxial rocker 24 is Z-shaped, and one end of the coaxial rocker 24 is coaxially arranged with the roller 23. The roller 23 can be driven to rotate by rotating the rocker 24; the off-axis rocker 24 is rotatably arranged on the bracket 22, and the rocker 24 is connected to the rotating shaft of the roller 23 through a chain, belt or gear. The rocker 24 rotates, thereby driving the roller 23 to rotate.

[0070] In this embodiment, as shown in the attached Figure 5 and attached Figure 6As shown, the suspension member 26 includes a cross bar 261 and a Yuanbao screw 263. The cross bar 261 is arranged on the bracket 22, specifically between the two auxiliary bars, and is arranged parallel to the surface of the fixing frame 1. A first blocking hole 262 is opened in the middle position of the cross bar 261, and a thread is provided in the first blocking hole 262. The Yuanbao thread is threadedly matched with the first blocking hole 262. The surface of the wheel 25 is radially provided with a plurality of second blocking holes 264. The second blocking holes 264 are through holes, and the first blocking holes 262 correspond to the second blocking holes 264. By rotating the Yuanbao screw 263 in the first blocking hole 262, the Yuanbao screw 263 can pass through the first blocking hole 262 and the second blocking hole 264, thereby limiting the rotation of the wheel 25 and then suspending the drum 23.

[0071] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that adhere to the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only; the true scope and spirit of the invention are indicated by the claims.

Claims

1. A bulk material sampler, characterized in that: include: Fixed frame; A winding drum is rotatably mounted on the fixing frame; a pull rope is wound around the surface of the winding drum; A sampling cylinder is connected to the bottom of the pull rope; a feeding port is provided on the side wall of the sampling cylinder; The hammer assembly is arranged on the pull rope; the hammer assembly is arranged at intervals on the top of the sampling cylinder.

2. A bulk material sampler according to claim 1, characterized in that: The hammer assembly comprises: A hanging hammer is located at the top of the sampling cylinder; A plurality of first connecting ropes have one end arranged on the surface of the pendulum and the other end arranged on the pull rope.

3. A bulk material sampler according to claim 2, characterized in that: The pendulum is annular, and the pull ropes of the sampling tube and the winding tube pass through the pendulum.

4. A bulk material sampler according to claim 2, characterized in that: A plurality of fixing buckles are radially arranged inside the pendulum, and the plurality of fixing buckles protrude from the surface of the pendulum. A fixing hole is provided in the fixing buckle, and a first circular stopper is provided at one end of the first connecting rope. The first connecting rope passes through the fixing hole so that the first circular stopper abuts against the fixing buckle.

5. A bulk material sampler according to claim 2, characterized in that: The sampling tube comprises: A conical cylinder, wherein the feed port is provided on the side wall of the conical cylinder; A striking plate is provided on the top of the conical cylinder; a through hole is provided in the center of the striking plate; The second connecting rope has a second circular stopper at one end and the other end passes through the through hole and is connected to the pull rope; the diameter of the second circular stopper is larger than the diameter of the through hole so that the second circular stopper abuts against the bottom of the striking plate.

6. A bulk material sampler according to claim 5, characterized in that: The conical cylinder is a multi-faceted conical cylinder.

7. A bulk material sampler according to claim 5, characterized in that: A bidirectional connecting piece is provided at one end of the pull rope, and an end of the bidirectional connecting piece away from the pull rope is connected to the first connecting rope and the second connecting rope.

8. The bulk material sampler according to claim 1, characterized in that: The winding drum comprises: A bracket is provided on the top wall of the fixing frame; the bracket is fixed to the fixing frame via a U-shaped clip; A drum is rotatably mounted on the bracket and is used to wind the pull rope; wheels are provided at both ends of the drum; A rocker, disposed at one end of the drum; A suspension member is provided on the bracket; the suspension member cooperates with the wheel disc to prevent the wheel disc from rotating.

9. A bulk material sampler according to claim 8, characterized in that: The suspension member comprises: A crossbar is provided on the bracket; a first blocking hole is provided on the crossbar, and a thread is provided inside the first blocking hole; A plurality of second blocking holes are radially arranged on the wheel disc; the first blocking holes correspond to the second blocking holes; Yuanbao screw; the Yuanbao screw is threadedly engaged with the first blocking hole; the Yuanbao screw is used to pass through the first blocking hole and the second blocking hole to limit the rotation of the wheel.

10. A bulk material sampler according to claim 1, characterized in that: The fixing frame is fixed to the sampling port of the silo via a U-shaped clip.

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