Unpowered sampling device

Abstract

The invention relates to the technical field of sampling devices, in particular to an unpowered sampling device. The device comprises a fixing frame, a wheel disc and a plurality of sampling containers, and the wheel disc is arranged above a conveying belt, rotationally installed on the fixing frame and capable of floating in the direction away from or close to the conveying belt; the multiple sampling containers are installed on the periphery of the wheel disc at intervals in the circumferential direction of the wheel disc, the opening ends of the sampling containers are rotationally connected with the wheel disc, and the gravity centers of the sampling containers are located below the rotating axes of the sampling containers. According to the device, the impact force of materials in the conveying process is used for driving the wheel disc to rotate, and the purpose of unpowered continuous sampling is achieved; moreover, the wheel disc can float in the direction away from or close to the conveying belt, so that the wheel disc can skip the sticking point, and the problems that the wheel disc is stuck and the conveying belt is scratched are solved. The device has the advantages of continuous and accurate sampling, strong sample representativeness, energy conservation, labor conservation and the like, and can be widely applied to sampling detection of materials conveyed by a conveying belt.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a non-powered sampling device. Background Art

[0002] In order to ensure the quality of manufactured sand products leaving the factory, it is necessary to sample and inspect the quality of manufactured sand. There are two conventional sampling methods: 1. Manual sampling, that is, manually taking samples on the conveyor belt. The samples obtained in this way are instantaneous samples, which are not representative, and there is a risk of operators being injured by the operating parts of the equipment; 2. Sampling using a transverse sampler. The sampling principle of the transverse sampler is to drive the sampler across the conveyor belt through a motor to obtain samples. This method requires electric energy to drive, which increases power consumption. At the same time, the sampler is easily stuck by the material when crossing the conveyor belt, resulting in poor sampling and the risk of scratching the conveyor belt. Summary of the invention

[0003] The purpose of the present invention is to provide a non-powered sampling device to solve the technical problems of high power consumption, poor sampling and easy scratching of conveyor belts in the sampling devices in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A non-powered sampling device for sampling materials on a conveyor belt comprises a fixed frame, a wheel disc and a plurality of sampling containers, wherein:

[0006] The wheel disc is used to be arranged above the conveyor belt, and is rotatably mounted on the fixing frame and can float in a direction away from or close to the conveyor belt;

[0007] A plurality of the sampling containers are installed at intervals along the circumference of the wheel disc on the periphery of the wheel disc, the open ends of the sampling containers are rotatably connected to the wheel disc, and the center of gravity of the sampling containers is located below their own rotation axis.

[0008] Furthermore, the wheel includes a core shaft and a plurality of water-collecting spokes radially distributed with the core shaft as the center, the water-collecting spokes corresponding to the sampling containers one by one, one end of the water-collecting spoke is fixedly mounted on the outer circumferential surface of the core shaft, and the other end of the water-collecting spoke is rotatably connected to the corresponding sampling container.

[0009] Furthermore, the wheel disc further comprises a plurality of power levers radially distributed around the core shaft;

[0010] One or more power levers are arranged between any two adjacent water-receiving spokes.

[0011] Furthermore, a flexible shifting piece is provided at one end of the power shifting rod away from the core shaft.

[0012] Furthermore, the water-collecting spokes and the power levers are alternately arranged, and a connecting rod is connected between any adjacent water-collecting spokes and power levers.

[0013] Furthermore, it also includes a material receiving pipe and a material pouring plate, wherein:

[0014] The opening at the top of the material receiving tube corresponds to the opening of the sampling container rotated to the highest position and can receive the sample poured out after the sampling container is turned over;

[0015] The material pouring and switching plate is arranged at the opening at the top of the material receiving pipe and can turn over the sampling container rotated to the highest point.

[0016] Furthermore, a mounting screw is provided on the side wall of the sampling container, and a mounting through hole for the mounting screw to penetrate is provided on the wheel disc.

[0017] Furthermore, the fixed frame includes a supporting frame and a transverse swing frame, the transverse swing frame has a fixed end and a free end that are relatively arranged, the fixed end is rotatably connected to the supporting frame, and the free end can swing up and down around the rotation axis of the transverse swing frame; the wheel is rotatably installed on the free end.

[0018] Furthermore, the supporting stand includes a supporting base plate, a first adjusting rod and a second adjusting rod, wherein the bottom end of the first adjusting rod is fixedly mounted on the supporting base plate; the first adjusting rod and the second adjusting rod are slidingly connected along a vertical direction; and the second adjusting rod is rotatably connected to the fixed end.

[0019] Furthermore, the fixing frame further comprises a locking bolt for locking the relative positions of the first adjusting rod and the second adjusting rod;

[0020] Alternatively, the fixing frame further includes a lifting driving member, which is connected between the first adjusting rod and the second adjusting rod and is used to drive the second adjusting rod to move up and down.

[0021] Beneficial effects of the present invention:

[0022] The unpowered sampling device provided by the present invention comprises a fixed frame, a wheel disc and a plurality of sampling containers, wherein: the wheel disc is arranged above the conveyor belt, which is rotatably mounted on the fixed frame and can float in a direction away from or close to the conveyor belt; a plurality of sampling containers are installed on the periphery of the wheel disc at intervals along the circumference of the wheel disc, the open end of the sampling container is rotatably connected to the wheel disc, and the center of gravity of the sampling container is located below its own rotation axis.

[0023] The unpowered sampling device provided by the present application utilizes the impact force of the material during the conveying process to drive the wheel to rotate, thereby achieving the purpose of unpowered continuous sampling; and the wheel can float in the direction away from or close to the conveyor belt, so that the wheel can skip the stuck point, thereby avoiding the problem of the wheel getting stuck and scratching the conveyor belt. The device has the advantages of continuous and accurate sampling, strong sample representativeness, energy saving and labor saving, and can be widely used in sampling and testing of materials conveyed by conveyor belts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic front view of an unpowered sampling device provided by one embodiment of the present invention;

[0026] Figure 2 A schematic side view of an unpowered sampling device provided by one embodiment of the present invention;

[0027] Figure 3 A schematic top view of a non-powered sampling device (without the material receiving pipe) provided in one embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of a water receiving spoke provided by an embodiment of the present invention;

[0029] Figure 5 for Figure 4 A local schematic diagram in direction A;

[0030] Figure 6 A schematic diagram of the assembly structure of a sampling container and a mounting screw provided in one embodiment of the present invention;

[0031] Figure 7 A schematic diagram of the structure of a power lever and a flexible paddle provided in one embodiment of the present invention;

[0032] Figure 8 A schematic diagram of the connection structure between the material receiving pipe and the material pouring plate provided in one embodiment of the present invention Figure 1 ;

[0033] Fig. 9 A schematic diagram of the connection structure between the material receiving pipe and the material pouring plate provided in one embodiment of the present invention Figure 2 ;

[0034] Fig.10A schematic front view of an unpowered sampling device provided by another embodiment of the present invention;

[0035] Fig.11 for Fig.10 A schematic diagram of the installation structure of the lifting drive member in the illustrated embodiment;

[0036] Fig.12 for Fig.10 Schematic top view of the illustrated embodiment (without the receiving tube).

[0037] icon:

[0038] 100- conveyor belt;

[0039] 1-fixed frame; 11-support frame; 111-support bottom plate; 112-first adjustment rod; 113-second adjustment rod; 114-limiting structure; 12-lateral swing frame; 13-lifting drive member;

[0040] 2-wheel disc; 21-mandrel; 22-water-receiving spokes; 221-installation through hole; 23-power lever; 24-flexible lever; 25-connection lever;

[0041] 3- Sampling container;

[0042] 4- Material receiving pipe;

[0043] 5- Material dumping plate;

[0044] 6-Install the screw;

[0045] 7-Encoder. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0048] It should be noted that in the description of the present invention, the terms "connection" and "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or connected through an intermediate medium; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In view of the technical problems of low representativeness of samples and easy accidental injury to operators in manual sampling, and high power consumption, poor sampling and easy scratching of conveyor belts in transverse sampling, the embodiment of the present invention provides a non-powered sampling device for sampling materials on a conveyor belt 100, referring to Figures 1 to 3 The unpowered sampling device comprises a fixed frame 1, a wheel disc 2 and a plurality of sampling containers 3, wherein:

[0050] The wheel disc 2 is arranged above the conveyor belt 100, and is rotatably mounted on the fixed frame 1 and can float in a direction away from or close to the conveyor belt 100;

[0051] A plurality of sampling containers 3 are installed at intervals along the circumference of the wheel disc 2 on the periphery of the wheel disc 2 . The open ends of the sampling containers 3 are rotatably connected to the wheel disc 2 , and the center of gravity of the sampling containers 3 is located below their own rotation axis.

[0052] Reference Figure 1 , the dotted line in the figure represents the conveyor belt 100, and the working principle of the unpowered sampling device provided by the present application is:

[0053] First, install the fixing frame 1 on the side of the conveyor belt 100, and adjust the position of the device relative to the conveyor belt 100, so that the wheel disc 2 is located above the conveyor belt 100 and the distance between the sampling container 3 at the bottom of the wheel disc 2 and the conveyor belt 100 is smaller than the thickness of the material on the conveyor belt 100, ensuring that the sampling container 3 can contact the material but cannot contact the conveyor belt 100;

[0054] Next, the conveyor belt 100 is started. When the conveyor belt 100 conveys the material along the straight arrow in the figure, the wheel disc 2 rotates counterclockwise (i.e., in the direction of the arc arrow in the figure) under the impact force of the material. Taking one of the sampling containers 3 as an example, since the center of gravity of the sampling container 3 is located below its own rotation axis, the opening of the sampling container 3 is upward when it is not in contact with the material. When the sampling container 3 moves to the lowest point, it will rotate relative to the wheel disc 2 under the impact force of the material until the opening faces the incoming material, so that the material enters the sampling container 3. When the sampling container 3 moves from the lowest point to leave the material, it will return to the state of opening upward under the action of gravity. By analogy, multiple sampling containers 3 repeat the above process driven by the wheel disc 2, thereby realizing continuous sampling of the material.

[0055] Furthermore, during the sampling process of the above-mentioned device, the wheel disc 2 can float in a direction away from or close to the conveyor belt 100. When the material thickness in a certain area on the conveyor belt 100 is too large or the material is stuck between the sampling container 3 and the conveyor belt 100, the wheel disc 2 can move in a direction away from the conveyor belt 100, so that the wheel disc 2 jumps over the stuck point, thereby avoiding the problem of the wheel disc 2 getting stuck and scratching the conveyor belt.

[0056] In summary, the unpowered sampling device provided by the present application utilizes the impact force of the material during the conveying process to drive the wheel disc 2 to rotate, thereby achieving the purpose of unpowered continuous sampling; and the wheel disc 2 can float in the direction away from or close to the conveyor belt 100, so that the wheel disc 2 can skip the stuck point, thereby avoiding the problem of the wheel disc 2 getting stuck and scratching the conveyor belt. The device has the advantages of continuous and accurate sampling, strong sample representativeness, energy saving and labor saving, and can be widely used in sampling and testing of materials conveyed by the conveyor belt 100.

[0057] By using the unpowered sampling device provided by the present application, when it is necessary to extend the material sampling time and avoid "instantaneous sampling", this can be achieved by removing and reducing the number of sampling containers 3, or by filling the sampling containers 3 to reduce the volume of the sampling containers 3 (or replacing the sampling containers 3 with smaller volumes); conversely, when it is necessary to accelerate the material sampling time, this can be achieved by increasing the number of sampling containers 3 or reducing the volume of the sampling containers 3. Therefore, the device can meet various sampling time requirements.

[0058] Continue to refer to Figure 1 The wheel 2 includes a core shaft 21 and a plurality of water-collecting spokes 22 radially distributed with the core shaft 21 as the center. The water-collecting spokes 22 correspond to the sampling containers 3 one by one. One end of the water-collecting spoke 22 is fixedly mounted on the outer circumferential surface of the core shaft 21, and the other end of the water-collecting spoke 22 is rotatably connected to the corresponding sampling container 3.

[0059] Reference Figures 4 to 6 , a mounting screw 6 is arranged on the side wall of the sampling container 3, and a mounting through hole 221 for the mounting screw 6 to penetrate is arranged on the wheel disc 2. Specifically, the sampling container 3 is a cylindrical structure with a welded inner wall and an open top, and a mounting screw 6 is arranged through the side wall of the sampling container 3; a mounting through hole 221 is arranged at one end of the water receiving spoke 22 away from the core shaft 21, and one end of the mounting screw 6 away from the sampling container 3 passes through the corresponding mounting through hole 221 and is screwed with a locking member such as a nut, thereby realizing the rotational connection between the water receiving spoke 22 and the sampling container 3.

[0060] Continue to refer to Figure 1The wheel disc 2 also includes a plurality of power levers 23 radially distributed around the core shaft 21; one or more power levers 23 are arranged between any two adjacent water-collecting spokes 22. The arrangement of the power levers 23 enables the wheel disc 2 to obtain more continuous power, ensuring that the wheel disc 2 can rotate continuously under the impact force of the material. The number of power levers 23 between two adjacent water-collecting spokes 22 can be adjusted according to actual conditions (such as the weight of the wheel disc 2), and is not limited here.

[0061] In some embodiments, reference Figure 7 A flexible paddle 24 is provided at one end of the power lever 23 away from the core shaft 21. The flexible paddle 24 can be made of elastic materials such as rubber and silicone. The elasticity of the flexible paddle 24 is used to provide the power lever 23 with a buffer force, thereby alleviating or avoiding the phenomenon of wear of the power lever 23 due to excessive speed or excessive impact. The flexible paddle 24 can be detachably fixed to the power lever 23 by a plurality of bolts. When the flexible paddle 24 is worn, it can be replaced, which is more flexible in maintenance.

[0062] Continue to refer to Figure 1 , Figure 1 In the illustrated embodiment, the water-receiving spokes 22 and the power levers 23 are arranged alternately, and a connecting rod 25 is connected between any adjacent water-receiving spokes 22 and power levers 23. The arrangement of the connecting rod 25 can make the structure of the wheel disc 2 more solid and reliable, so that the device can operate reliably for a long time. The connecting rod 25 can be one or more, and can be adjusted according to actual conditions.

[0063] Continue to refer to Figure 1 and Figure 2 The unpowered sampling device further comprises a material receiving pipe 4 and a material pouring plate 5, wherein:

[0064] The opening at the top of the receiving tube 4 corresponds to the opening of the sampling container 3 which is rotated to the highest position and can receive the sample poured out after the sampling container 3 is turned over;

[0065] The material pouring plate 5 is arranged at the opening of the top of the material receiving pipe 4 and can turn over the sampling container 3 rotated to the highest point.

[0066] With the above structure, when the sampling container 3 moves to the highest point, it will turn over under the action of the material pouring plate 5, and the sample in the sampling container 3 will fall into the material receiving tube 4 after turning over, thereby achieving the purpose of automatically collecting samples.

[0067] On the basis of the above structure, the material pouring plate 5 is fixed on the material receiving pipe 4. When the sampling container 3 hits the material pouring plate 5, the material receiving pipe 4 can be knocked once to shake off the material in the material receiving pipe 4, thereby avoiding the material clogging in the material receiving pipe 4. In addition, in order to prevent the material receiving pipe 4 from interfering with the rotation of the wheel disc 2, the wheel disc 2 is in an arc-shaped structure, and the center of the wheel disc 2 is concave relative to the edge toward the direction away from the material receiving pipe 4.

[0068] In some embodiments, a sampling bucket may be added to the opening at the bottom of the sampling container 3, and the sample in the receiving tube 4 falls into the sampling bucket under the action of gravity, thereby increasing the storage capacity of the sample and making it easier for staff to extract the sample.

[0069] Continue to refer to Figures 1 to 3 The fixed frame 1 includes a supporting frame 11 and a transverse swing frame 12. The transverse swing frame 12 has a fixed end and a free end that are relatively arranged. The fixed end of the transverse swing frame 12 is rotatably connected to the supporting frame 11, and the free end of the transverse swing frame 12 can swing up and down around the rotation axis of the transverse swing frame 12; the wheel 2 is rotatably installed at the free end of the transverse swing frame 12.

[0070] During the sampling process of the above-mentioned device, when the material thickness in a certain area on the conveyor belt 100 is too large or the material is stuck between the sampling container 3 and the conveyor belt 100, the free end of the transverse swing frame 12 swings upward around the rotation axis of the transverse swing frame 12, so that the wheel disc 2 jumps over the stuck point.

[0071] On the basis of the above structure, a limiting structure 114 is provided on the support frame 11, and the limiting structure 114 is used to limit the extreme position of the downward swing of the lateral swing frame 12. In this embodiment, the limiting structure 114 is specifically a limiting block, which is welded or screwed to the support frame 11 and is located below the lateral swing frame 12. The limiting block can abut against the lateral swing frame 12, so that the lateral swing frame 12 cannot continue to swing downward.

[0072] Furthermore, the support stand 11 includes a support base plate 111, a first adjustment rod 112 and a second adjustment rod 113, wherein the bottom end of the first adjustment rod 112 is fixedly mounted on the support base plate 111; the first adjustment rod 112 and the second adjustment rod 113 are slidably connected in the vertical direction; and the second adjustment rod 113 is rotatably connected to the fixed end of the transverse swing frame 12. Since the first adjustment rod 112 and the second adjustment rod 113 can slide relative to each other in the vertical direction, the height of the transverse swing frame 12 and the wheel disc 2 on the transverse swing frame 12 can be adjusted, which can not only adjust the wheel disc 2 to the optimal height so that the sampling process can proceed smoothly, but also can adapt to various material conveying occasions, and has a wider applicability.

[0073] In some embodiments, there are two supporting frames 11, which are respectively arranged on both sides of the conveyor belt 100. Accordingly, there are two lateral swing frames 12, which are respectively connected to the supporting frames 11 in a one-to-one correspondence. The two ends of the core shaft 21 along the length direction are respectively rotatably connected to the two lateral swing frames 12. The above structure can limit the two ends of the wheel disc 2 and improve the firmness of the overall structure of the device.

[0074] In one specific embodiment, the mandrel 21 is a hollow structure, which is made of seamless steel pipe, a rotating shaft is connected between the two transverse swing frames 12, the mandrel 21 is sleeved on the rotating shaft, and a bearing is connected between the two. In another specific embodiment, the mandrel 21 is a solid structure, and its two ends along the length direction are respectively inserted into the two transverse swing frames 12, and a bearing is connected between the mandrel 21 and the transverse swing frame 12. Both of the above structures can realize the rotation connection between the mandrel 21 and the transverse swing frame 12.

[0075] In some embodiments, reference Figure 8 and Fig. 9 The material pouring plate 5 is rotatably mounted on the outer wall of the material receiving pipe 4 within a certain angle range, and the center of gravity of the material pouring plate 5 is located below its rotation axis. Figure 8 As shown, in the absence of external force, the lower end of the material pouring plate 5 abuts against the material receiving pipe 4; Fig. 9 As shown, when the sampling container 3 collides with the material pouring plate 5, the material pouring plate 5 rotates counterclockwise under the push of the sampling container 3 until its upper end abuts against the material receiving pipe 4; and when the sampling container 3 passes through the material pouring plate 5, the material pouring plate 5 rotates clockwise under the action of gravity and makes its lower end knock against the material receiving pipe 4. Therefore, when the sampling container 3 collides with the material pouring plate 5, the material pouring plate 5 can indirectly knock against the material receiving pipe 4 once, and the material pouring plate 5 knocks against the material receiving pipe 4 once again after the sampling container 3 passes. Each time the material is poured, the material receiving pipe 4 is knocked twice to ensure that the pipe opening of the material receiving pipe 4 will not be blocked.

[0076] In some embodiments, reference Figure 1 The fixing frame 1 further includes a locking bolt for locking the relative position of the first adjusting rod 112 and the second adjusting rod 113. Specifically, the first adjusting rod 112 is provided with a plurality of first connecting holes sequentially distributed along the height direction, and the second adjusting rod 113 is provided with a plurality of second connecting holes sequentially distributed along the height direction; the height position of the second adjusting rod 113 is adjusted so that a plurality of the first connecting holes and a plurality of the second connecting holes correspond to each other one by one and are connected by the locking bolt, so that the first adjusting rod 112 and the second adjusting rod 113 can be locked.

[0077] In other embodiments, reference Fig.10 and Fig.11The fixed frame 1 also includes a lifting drive member 13, which is connected between the first adjustment rod 112 and the second adjustment rod 113 and is used to drive the second adjustment rod 113 to move up and down. Specifically, the lifting drive member 13 can be an oil cylinder, a gas cylinder, or a motor. The main body of the lifting drive member 13 is fixed on the first adjustment rod 112, and the power transmission shaft of the lifting drive member 13 is connected to the second adjustment rod 113. In order to make the first adjustment rod 112 and the second adjustment rod 113 move stably along the set trajectory, a guide rail slider structure can also be provided between the first adjustment rod 112 and the second adjustment rod 113.

[0078] The setting of the lifting drive member 13, on the one hand, realizes the purpose of automatically adjusting the height of the wheel disc 2, and on the other hand, can automatically lift the wheel disc 2 to a height that does not contact the material when sampling is not required, making the device more automated and more convenient to use.

[0079] exist Fig.10 and Fig.11 Based on the embodiment shown, refer to Fig.12 The unpowered sampling device also includes an encoder 7, the rotating shaft of which is connected to one end of the core shaft 21 of the wheel disc 2 through a coupling, and is used to detect the rotation state of the wheel disc 2.

[0080] Furthermore, the encoder 7, the lifting drive component 13 and the conveyor belt 100 are controlled in conjunction with each other, and the principle of the joint control of the three is as follows: during operation, when the conveyor belt 100 continues to transport materials, but the encoder 7 detects that the wheel disc 2 does not rotate for more than a set time (for example, 5 minutes), there may be two situations: the wheel disc 2 is stuck and the impact force of the material is insufficient; at this time, the lifting drive component 13 is controlled to operate first, and the wheel disc 2 is lifted to a height where it does not contact the material to prevent the wheel disc 2 from damaging the conveyor belt 100. After a certain period of time, the lifting drive component 13 is controlled to operate again to restore the wheel disc 2 to its original height; then, if the wheel disc 2 resumes rotation, the sampling work is continued with the current parameters. If the wheel disc 2 still does not rotate, the moving speed of the conveyor belt 100 is increased.

[0081] In addition, the encoder 7 can detect the rotation speed of the wheel disc 2; when the material sampling time needs to be extended, the speed of the conveyor belt 100 can be reduced to reduce the rotation speed of the wheel disc 2; conversely, when the material sampling time needs to be accelerated, the speed of the conveyor belt 100 can be increased to increase the rotation speed of the wheel disc 2, so the device can automatically adjust the sampling time. The detection result of the encoder 7 can also be used to roughly calculate the amount of samples obtained, which is more convenient for the staff to quantitatively sample.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-powered sampling device for sampling materials on a conveyor belt (100), characterized in that: It comprises a fixed frame (1), a wheel disc (2) and a plurality of sampling containers (3), wherein: The wheel disc (2) is arranged above the conveyor belt (100), and is rotatably mounted on the fixed frame (1) and is capable of floating in a direction away from or approaching the conveyor belt (100); A plurality of the sampling containers (3) are installed at intervals along the circumference of the wheel disc (2) on the periphery of the wheel disc (2); the open ends of the sampling containers (3) are rotatably connected to the wheel disc (2), and the center of gravity of the sampling containers (3) is located below their own rotation axis.

2. The unpowered sampling device according to claim 1, characterized in that: The wheel (2) comprises a core shaft (21) and a plurality of water-collecting spokes (22) radially distributed around the core shaft (21), wherein the water-collecting spokes (22) correspond one to one with the sampling containers (3), one end of the water-collecting spoke (22) is fixedly mounted on the outer peripheral surface of the core shaft (21), and the other end of the water-collecting spoke (22) is rotatably connected to the corresponding sampling container (3).

3. The unpowered sampling device according to claim 2, characterized in that: The wheel disc (2) further comprises a plurality of power levers (23) which are radially distributed with the core shaft (21) as the center; One or more power levers (23) are arranged between any two adjacent water-receiving spokes (22).

4. The unpowered sampling device according to claim 3, characterized in that: A flexible paddle (24) is provided at one end of the power paddle (23) away from the core shaft (21).

5. The unpowered sampling device according to claim 3, characterized in that: The water receiving spokes (22) and the power shifting rods (23) are arranged alternately, and a connecting rod (25) is connected between any adjacent water receiving spokes (22) and power shifting rods (23).

6. The unpowered sampling device according to claim 1, characterized in that: It also includes a material receiving pipe (4) and a material pouring plate (5), wherein: The opening at the top of the material receiving tube (4) corresponds to the opening of the sampling container (3) rotated to the highest point and is capable of receiving the sample poured out after the sampling container (3) is turned over; The material tipping plate (5) is arranged at the opening at the top of the material receiving pipe (4) and is capable of turning over the sampling container (3) that has been rotated to the highest point.

7. The unpowered sampling device according to claim 1, characterized in that: A mounting screw rod (6) is provided on the side wall of the sampling container (3), and a mounting through hole (221) for the mounting screw rod (6) to penetrate is provided on the wheel disc (2).

8. The unpowered sampling device according to any one of claims 1 to 7, characterized in that: The fixed frame (1) comprises a supporting frame (11) and a transverse swing frame (12); the transverse swing frame (12) has a fixed end and a free end which are arranged opposite to each other; the fixed end is rotatably connected to the supporting frame (11); and the free end can swing up and down around the rotation axis of the transverse swing frame (12); the wheel disc (2) is rotatably mounted on the free end.

9. The unpowered sampling device according to claim 8, characterized in that: The supporting stand (11) comprises a supporting base plate (111), a first adjusting rod (112) and a second adjusting rod (113), wherein the bottom end of the first adjusting rod (112) is fixedly mounted on the supporting base plate (111); the first adjusting rod (112) and the second adjusting rod (113) are slidably connected in a vertical direction; and the second adjusting rod (113) is rotatably connected to the fixed end.

10. The unpowered sampling device according to claim 9, characterized in that: The fixing frame (1) further comprises a locking bolt for locking the relative positions of the first adjusting rod (112) and the second adjusting rod (113); Alternatively, the fixing frame (1) further comprises a lifting driving member (13), wherein the lifting driving member (13) is connected between the first adjusting rod (112) and the second adjusting rod (113) and is used to drive the second adjusting rod (113) to move up and down.

Images