Feeding bin of soil remediation machine

Abstract

The utility model belongs to the technical field of soil remediation equipment, and provides a feeding bin of a soil remediation machine, which comprises a bin body and a filter screen arranged at a feeding port of the bin body, and further comprises a cleaning assembly, the first end of the hinge is hinged to the bin body through a hinge shaft, the second end of the hinge can swing between a first position and a second position in a reciprocating mode around the hinge center line of the hinge, when the hinge is located at the first position, the second end of the hinge is separated from the side wall of the bin body, and when the hinge is located at the second position, the second end of the hinge abuts against the side wall of the bin body; and the driving structure is used for driving the striking arm to swing between the first position and the second position in a reciprocating manner. The feeding bin of the soil remediation machine is simple in structure and reasonable in design, soil attached to the side wall of the bin body can be automatically cleaned, labor force is saved, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation equipment, in particular to a feeding bin of a soil remediation machine. Background Art

[0002] like Figure 1 As shown, a feed bin of a soil remediation machine in the prior art is shown, which includes a bin body 210 and a filter screen 220 arranged above the bin body. When in use, the soil to be remediated enters the feed bin from the feed port of the feed bin, and large impurities in the soil are intercepted outside the feed bin by the filter screen 220. The soil passes through the bin body 210 and falls onto the conveyor belt 100 below, and is then transported to the remediation station for soil remediation.

[0003] Since the soil has a certain viscosity, some soil often adheres to the inclined part of the bin body 210. The disadvantage of the above-mentioned soil remediation machine feed bin is that the soil adhered to the inclined part of the bin body 210 can only be cleaned manually, which is not only inconvenient to operate, but also wastes manpower. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a soil remediation machine feed bin to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0005] In order to achieve the above-mentioned object, the utility model provides a soil remediation machine feed bin, comprising a bin body and a filter screen arranged at a feed port of the bin body, and also comprising a cleaning component, wherein the cleaning component comprises:

[0006] a striking arm, which is arranged at one side of the bin body, with a first end hinged to the bin body via a hinge shaft, and a second end capable of swinging back and forth between a first position and a second position around a hinge center line, wherein when the striking arm is in the first position, the second end is separated from the side wall of the bin body, and when the striking arm is in the second position, the second end is in contact with the side wall of the bin body; and

[0007] The driving structure is used to drive the striking arm to swing back and forth between the first position and the second position.

[0008] Furthermore, the driving structure comprises:

[0009] A driving arm, which is disposed at a first end of the striking arm and is fixedly connected to the striking arm;

[0010] a torsion spring, which is sleeved on the hinge shaft and has a tendency to move the striking arm from the second position to the first position in a natural state;

[0011] A rotating shaft, which is rotatably connected to the warehouse body;

[0012] A first cam, which is sleeved on the rotating shaft and fixedly connected to the rotating shaft, and whose outer peripheral wall abuts against the driving arm; and

[0013] The first motor is fixedly connected to the warehouse body, and a power output shaft of the first motor is drivingly connected to the rotating shaft.

[0014] Furthermore, a plurality of striking arms are provided, and the plurality of striking arms are sequentially spaced apart along the length direction of the hinge shaft, and the plurality of striking arms are hinged to the warehouse body through the same hinge shaft.

[0015] Furthermore, the number of the driving arms and the number of the first cams are both multiple and in one-to-one correspondence.

[0016] Furthermore, the number of the driving arms, the first cams and the striking arms is equal.

[0017] Furthermore, a striking portion is provided at the second end of the striking arm.

[0018] Furthermore, a rubber pad is provided on the striking part.

[0019] Furthermore, the free end of the striking portion is hemispherical.

[0020] Furthermore, the cleaning assembly also includes a transmission structure and a tensioning structure;

[0021] The transmission structure comprises:

[0022] A first pulley, which is sleeved on one end of the rotating shaft and fixedly connected to the rotating shaft;

[0023] The second pulley comprises:

[0024] a first wheel body, which is coaxially sleeved on the power output shaft of the first motor and fixedly connected to the power output shaft of the first motor; and

[0025] a second wheel body, which is arranged opposite to the first wheel body, is coaxially sleeved on the power output shaft of the first motor, is slidably connected to the power output shaft of the first motor, and can reciprocate linearly between a third position and a fourth position along the axial direction of the power output shaft of the first motor, wherein when it is in the third position, the distance between it and the first wheel body is relatively close, and when it is in the second position, the distance between it and the first wheel body is relatively far;

[0026] a transmission belt, which is sleeved on the first pulley and the second pulley and can rotate with the rotation of the first pulley and / or the second pulley; and

[0027] a driving unit, used for driving the second wheel body to perform reciprocating linear motion between the third position and the fourth position;

[0028] Wherein, the cross section of the transmission belt is trapezoidal, and the belt grooves of the first pulley and the second pulley are adapted to the transmission belt;

[0029] The tensioning structure is used to keep the transmission belt in a tensioned state at all times.

[0030] Furthermore, the driving unit comprises:

[0031] a driving disk, which is arranged on a side of the second wheel body away from the first wheel body, is slidably connected to the warehouse body, and can make reciprocating linear motion between a fifth position and a sixth position in a direction close to or away from the first wheel body, and the second wheel body is rotatably connected to the driving disk, wherein when the driving disk is in the fifth position, the driving disk drives the second wheel body to the third position, and when the driving disk is in the sixth position, the driving disk drives the second wheel body to the fourth position;

[0032] A first elastic member, two ends of which are respectively connected to the driving disk and the bin body, and in a natural state, has a tendency to move the driving disk from the fifth position to the sixth position;

[0033] A second cam, which is disposed on a side of the driving disk away from the second wheel body, has an outer side wall in contact with the driving disk, and is rotatably connected to the bin body; and

[0034] The second motor is fixedly arranged on the warehouse body, and its power output shaft is rotationally connected to the second cam.

[0035] Beneficial effects of the utility model:

[0036] The soil remediation machine feeding bin provided by the utility model can achieve the purpose of automatically cleaning the mud adhering to the side wall of the bin body by arranging a cleaning component, and at the same time, it saves labor and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0038] Figure 1 A three-dimensional view of a feed bin of a soil remediation machine in the prior art;

[0039] Figure 2 A three-dimensional view of a feed bin of a soil remediation machine provided by an embodiment of the utility model;

[0040] Figure 3 for Figure 2 A combined three-dimensional view of a striking arm, a driving arm, an articulated shaft and a rubber pad of a feeding bin of a soil remediation machine shown;

[0041] Figure 4 for Figure 2 The cross-sectional view shown;

[0042] Figure 5 A three-dimensional view of a feed bin of a soil remediation machine provided by another embodiment of the utility model;

[0043] Figure 6 for Figure 5 An enlarged view of section A is shown;

[0044] Figure 7 for Figure 5 A perspective view of a cleaning assembly of a soil remediation machine feed bin is shown;

[0045] Figure 8 for Figure 5 Another perspective view of the cleaning assembly of the soil remediation machine feed bin is shown.

[0046] Reference numerals:

[0047] 100, conveyor belt; 210, warehouse body; 220, filter screen; 230, striking arm; 231, striking part; 240, hinge shaft; 251, driving arm; 252, rotating shaft; 253, first cam; 254, first motor; 260, rubber pad; 271, first pulley; 272, second pulley; 202, first wheel body; 203, second wheel body; 273, transmission belt; 274, driving disk; 275, first elastic member; 276, second cam; 277, second motor; 281, tensioning rod; 204, outer rod; 205, inner rod; 282, tensioning wheel. DETAILED DESCRIPTION

[0048] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0049] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0053] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] like Figure 2-8 As shown, the utility model provides a soil remediation machine feed bin, which is arranged at the feed end of the conveyor belt 100, and includes a bin body 210 and a filter screen 220 arranged at the feed port of the bin body 210, and also includes a cleaning component, the cleaning component includes a striking arm 230 and a driving structure,

[0055] The striking arm 230 is arranged at one side of the bin body 210, and the first end of the striking arm 230 is hinged to the bin body 210 through the hinge shaft 240, and the second end can swing back and forth between the first position and the second position around its own hinge center line. When the striking arm 230 is in the first position, the second end of the striking arm 230 is separated from the side wall of the bin body 210, and when the striking arm 230 is in the second position, the second end of the striking arm 230 contacts the side wall of the bin body 210 to strike the side wall of the bin body 210 at the inclined part, so that the side wall of the bin body 210 vibrates, thereby achieving the purpose of making the soil adhered to the bin body 210 fall along the side wall of the bin body 210 onto the conveyor belt 100. The driving structure is used to drive the striking arm 230 to swing back and forth between the first position and the second position.

[0056] Specifically, when in use, the driving assembly drives the striking arm 230 to perform reciprocating linear motion between the first position and the second position to continuously strike the side wall of the bin body 210, causing the side wall of the bin body 210 to continuously vibrate, thereby achieving the purpose of causing the soil adhered to the bin body 210 to fall along the side wall of the bin body 210 onto the conveyor belt 100.

[0057] The soil remediation machine feeding bin provided in this embodiment has a simple structure and a reasonable design, and can automatically clean the soil adhering to the side wall of the bin body 210, is easy to operate, and saves labor costs.

[0058] In one embodiment, the driving structure includes a driving arm 251 , a torsion spring (not shown in the drawings), a rotating shaft 252 , a first cam 253 and a first motor 254 .

[0059] The driving arm 251 is arranged at the second end of the striking arm 230 and is fixedly connected to the striking arm 230. The torsion spring is sleeved on the hinge shaft 240, and in a natural state, the torsion spring has a tendency to move the striking arm 230 from the second position to the first position. The rotating shaft 252 is rotatably connected to the warehouse body 210. The first cam 253 is sleeved on the rotating shaft 252 and is fixedly connected to the rotating shaft 252, and the outer peripheral wall of the first cam 253 is in conflict with the driving arm 251. The first motor 254 is fixedly connected to the warehouse body 210, and the power output shaft of the first motor 254 is transmission-connected to the rotating shaft 252.

[0060] When in use, when the striking arm 230 moves from the first position to the second position, the first motor 254 drives the rotating shaft 252 to rotate, and the rotating shaft 252 drives the first cam 253 to rotate. Under the action of the first cam 253, the first cam 253 drives the driving arm 251 to swing, thereby achieving the purpose of driving the striking arm 230 to swing by overcoming the elastic force of the torsion spring.

[0061] When the striking arm 230 moves from the second position to the first position, the first motor 254 continues to drive the first cam 253 to rotate. Under the elastic force of the torsion spring, the torsion spring drives the striking arm 230 to swing from the second position to the first position, so that the driving arm 251 always maintains contact with the first cam 253.

[0062] Preferably, a plurality of striking arms 230 are provided, and the plurality of striking arms 230 are sequentially spaced along the length direction of the hinge shaft 240, and the plurality of striking arms 230 are hinged to the bin body 210 via the same hinge shaft 240. By providing a plurality of striking arms 230, the striking effect is improved, thereby improving the cleaning effect. By providing a plurality of striking arms 230 on the same hinge shaft 240, the purpose of using the same driving structure to drive all striking arms 230 to swing is achieved, thereby simplifying the structure and saving costs.

[0063] Preferably, the number of the driving arms 251 and the first cams 253 are both multiple and one-to-one corresponding. Preferably, the number of the driving arms 251, the first cams 253 and the striking arms 230 are equal. By providing multiple driving arms 251, the purpose of dispersing the force between the first cams 253 and the driving arms 251 is achieved, thereby achieving the purpose of increasing the service life.

[0064] Preferably, a striking portion 231 is provided at the second end of the striking arm 230 to better strike the side wall of the bin body 210. Preferably, a rubber pad 260 is sleeved on the striking portion 231 to reduce the noise during striking.

[0065] Preferably, the free end of the striking portion 231 is hemispherical.

[0066] In one embodiment, the cleaning assembly further includes a transmission structure and a tensioning structure, wherein the transmission structure includes a first pulley 271, a second pulley 272, a transmission belt 273 and a driving unit.

[0067] The first pulley 271 is sleeved on one end of the rotating shaft 252, and the first pulley 271 is fixedly connected to the rotating shaft 252. The second pulley 272 includes a first wheel body 202 and a second wheel body 203.

[0068] The first wheel body 202 is coaxially sleeved on the power output shaft of the first motor 254 and fixedly connected to the power output shaft of the first motor 254. The second wheel body 203 is arranged opposite to the first wheel body 202, and the second wheel body 203 is coaxially sleeved on the power output shaft of the first motor 254. The second wheel body 203 is slidably connected to the power output shaft of the first motor 254. The second wheel body 203 can reciprocate linearly between the third position and the fourth position along the axial direction of the power output shaft of the first motor 254, wherein when the second wheel body 203 is in the third position, the distance between the second wheel body 203 and the first wheel body 202 is relatively close, and when it is in the second position, the distance between the second wheel body 203 and the first wheel body 202 is relatively far. The transmission belt 273 is sleeved on the first pulley 271 and the second pulley 272 and can rotate with the rotation of the first pulley 271 and / or the second pulley 272. The cross section of the transmission belt 273 is trapezoidal, and the belt grooves of the first pulley 271 and the second pulley 272 are adapted to the transmission belt 273, so that the transmission radius of the second pulley 272 can be changed by changing the spacing between the first wheel body 202 and the second wheel body 203. The driving unit is used to drive the second wheel body 203 to reciprocate linearly between the third position and the fourth position, and the driving unit can stop the second wheel body 203 at any position between the third position and the fourth position.

[0069] The tensioning structure is used to keep the transmission belt 273 in a tensioned state at all times. Specifically, the tensioning structure includes a tensioning rod 281 and a tensioning wheel 282. The tensioning rod 281 includes an outer rod 204, an inner rod 205, and a second elastic member (not shown in the drawings). The first end of the outer rod 204 is fixedly connected to the warehouse body 210, and the second end extends freely. The first end of the inner rod 205 is slidably inserted in the outer rod 204, and the second end extends to the outside of the second end of the outer rod 204. The second elastic member is arranged in the outer rod 204, and the two ends of the second elastic member are respectively connected to the inner rod 205 and the outer rod 204, and in the natural state, the second elastic member has a tendency to stretch the tensioning rod 281. The tensioning wheel 282 is rotatably arranged at the second end of the inner rod 205, and the outer peripheral wall of the tensioning wheel 282 abuts against the transmission belt 273.

[0070] When in use, the driving unit drives the second wheel body 203 to perform reciprocating linear motion between the third position and the fourth position, so as to change the transmission radius of the second pulley 272, thereby changing the transmission ratio of the first pulley 271 to the second pulley 272, and then changing the rotation speed of the cam to change the moving speed of the striking arm 230, thereby changing the force of striking the side wall of the bin body 210.

[0071] Specifically, when the distance between the first wheel body 202 and the second wheel body 203 becomes larger, the transmission radius of the second pulley 272 becomes smaller, thereby making the transmission radius between the second pulley 272 and the first pulley 271 smaller; when the distance between the first wheel body 202 and the second wheel body 203 becomes smaller, the transmission radius of the second pulley 272 becomes larger, thereby making the transmission ratio between the second pulley 272 and the first pulley 271 larger.

[0072] In this embodiment, a transmission structure is provided to adjust the force with which the striking arm 230 strikes the side wall of the bin body 210. When facing soil with better viscosity, the striking force of the striking arm 230 is increased, and when facing soil with poorer viscosity, the striking force of the striking arm 230 is reduced, so as to achieve the purpose of improving the cleaning effect.

[0073] In one embodiment, the driving unit includes a driving plate 274 , a first elastic member 275 , a second cam 276 and a second motor 277 .

[0074] The driving disk 274 is disposed on a side of the second wheel body 203 away from the first wheel body 202, and the driving disk 274 is slidably connected to the chamber body 210. The driving disk 274 can make reciprocating linear motion between the fifth position and the sixth position in a direction close to or away from the first wheel body 202, and the second wheel body 203 is rotationally connected to the driving disk 274. When the driving disk 274 is in the fifth position, the driving disk 274 drives the second wheel body 203 to the third position; when the driving disk 274 is in the sixth position, the driving disk 274 drives the second wheel body 203 to the fourth position.

[0075] The two ends of the first elastic member 275 are connected to the driving disk 274 and the warehouse body 210 respectively, and in a natural state, the first elastic member 275 has a tendency to move the driving disk 274 from the fifth position to the sixth position. The second cam 276 is arranged on the side of the driving disk 274 away from the second wheel body 203, and the outer side wall of the second cam 276 is kept in contact with the driving disk 274, and the second cam 276 is rotatably connected to the warehouse body 210. The second motor 277 is fixedly arranged on the warehouse body 210, and the power output shaft of the second motor 277 is rotatably connected to the second cam 276. Preferably, the second motor 277 is a self-locking motor, so as to achieve the purpose of stopping the cam at any position.

[0076] When in use, the second motor 277 drives the second cam 276 to rotate. When the rising surface of the second cam 276 contacts the driving disk 274, the driving disk 274 overcomes the elastic force of the first elastic member 275 and moves from the sixth position to the fifth position under the action of the second cam 276, so that the distance between the first wheel body 202 and the second wheel body 203 gradually decreases. As the second cam 276 rotates, when the descending surface of the second cam 276 contacts the driving disk 274, the driving disk 274 moves from the fifth position to the sixth position under the action of the elastic force of the first elastic member 275, so that the distance between the first wheel body 202 and the second wheel body 203 gradually increases.

[0077] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model 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 by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A soil remediation machine feed bin, comprising a bin body (210) and a filter screen (220) arranged at a feed port of the bin body (210), characterized in that: Also included is a cleaning component, the cleaning component comprising: a striking arm (230), which is arranged at one side of the bin body (210), wherein the first end of the striking arm is hinged to the bin body (210) via a hinge shaft (240), and the second end of the striking arm can swing back and forth between a first position and a second position around its hinge center line, wherein when the striking arm is in the first position, the second end of the striking arm is separated from the side wall of the bin body (210), and when the striking arm is in the second position, the second end of the striking arm is in contact with the side wall of the bin body (210); and A driving structure is used for driving the striking arm (230) to swing back and forth between the first position and the second position.

2. The soil remediation machine feed bin according to claim 1, characterized in that: The driving structure comprises: A driving arm (251), which is arranged at a first end of the striking arm (230) and is fixedly connected to the striking arm (230); a torsion spring, which is sleeved on the hinge shaft (240) and has a tendency to move the striking arm (230) from the second position to the first position in a natural state; A rotating shaft (252) rotatably connected to the warehouse body (210); A first cam (253) is sleeved on the rotating shaft (252) and fixedly connected to the rotating shaft (252), and its outer peripheral wall abuts against the driving arm (251); and A first motor (254) is fixedly connected to the warehouse body (210), and a power output shaft thereof is drivingly connected to the rotating shaft (252).

3. The soil remediation machine feed bin according to claim 2, characterized in that: A plurality of the striking arms (230) are provided, and the plurality of striking arms (230) are sequentially spaced apart along the length direction of the hinge shaft (240), and the plurality of striking arms (230) are hinged to the bin body (210) via the same hinge shaft (240).

4. The soil remediation machine feed bin according to claim 3, characterized in that: The number of the driving arms (251) and the number of the first cams (253) are both multiple and correspond one to one.

5. The soil remediation machine feed bin according to claim 4, characterized in that: The number of the driving arms (251), the first cams (253) and the striking arms (230) is equal.

6. The soil remediation machine feed bin according to any one of claims 2 to 5, characterized in that: The second end of the striking arm (230) is provided with a striking portion (231).

7. The soil remediation machine feed bin according to claim 6, characterized in that: The striking portion (231) is sleeved with a rubber pad (260).

8. The soil remediation machine feed bin according to claim 6, characterized in that: The free end of the striking portion (231) is hemispherical.

9. The soil remediation machine feed bin according to claim 2, 3, 4, 5, 7 or 8, characterized in that: The cleaning assembly also includes a transmission structure and a tensioning structure; The transmission structure comprises: A first pulley (271), which is sleeved on one end of the rotating shaft (252) and is fixedly connected to the rotating shaft (252); A second pulley (272) comprising: A first wheel body (202) is coaxially sleeved on the power output shaft of the first motor (254) and fixedly connected to the power output shaft of the first motor (254); and a second wheel body (203), which is arranged opposite to the first wheel body (202), is coaxially sleeved on the power output shaft of the first motor (254), is slidably connected to the power output shaft of the first motor (254), and can perform reciprocating linear motion between a third position and a fourth position along the axial direction of the power output shaft of the first motor (254), wherein when it is in the third position, the distance between it and the first wheel body (202) is relatively close, and when it is in the second position, the distance between it and the first wheel body (202) is relatively far; a transmission belt (273), which is sleeved on the first belt pulley (271) and the second belt pulley (272) and can rotate along with the rotation of the first belt pulley (271) and / or the second belt pulley (272); and A driving unit, used for driving the second wheel body (203) to perform reciprocating linear motion between the third position and the fourth position; The cross section of the transmission belt (273) is trapezoidal, and the belt grooves of the first pulley (271) and the second pulley (272) are adapted to the transmission belt (273); The tensioning structure is used to keep the transmission belt (273) in a tensioned state at all times.

10. The soil remediation machine feed bin according to claim 9, characterized in that: The driving unit comprises: a driving disk (274), which is arranged on a side of the second wheel body (203) away from the first wheel body (202), and is slidably connected to the warehouse body (210), and can perform reciprocating linear motion between a fifth position and a sixth position in a direction approaching or away from the first wheel body (202), and the second wheel body (203) is rotationally connected to the driving disk (274), wherein when the driving disk (274) is in the fifth position, the driving disk (274) drives the second wheel body (203) to the third position, and when the driving disk (274) is in the sixth position, the driving disk (274) drives the second wheel body (203) to the fourth position; A first elastic member (275), two ends of which are respectively connected to the driving disk (274) and the bin body (210), and in a natural state, has a tendency to move the driving disk (274) from the fifth position to the sixth position; A second cam (276), which is disposed on a side of the driving disk (274) away from the second wheel body (203), with its outer side wall in contact with the driving disk (274), and is rotatably connected to the bin body (210); and The second motor (277) is fixedly disposed on the warehouse body (210), and its power output shaft is rotationally connected to the second cam (276).

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