A cleaning device for a dispensing canister

Abstract

The present application relates to the technical field of cleaning device, and particularly relates to a cleaning device for dispensing tank, which comprises a base, a clamping part and a cleaning part. The clamping part is installed on the base. The cleaning part comprises a cleaning ball, a supporting cylinder, a water supply part and a flow adjusting frame. The water supply part is installed on the base and connected with the supporting cylinder. The cleaning ball is located above the supporting cylinder and rotationally matched with the supporting cylinder. A plurality of water spraying openings are formed in the cleaning ball around the vertical direction. The flow adjusting frame comprises a plurality of flow adjusting plates, the flow adjusting plates are arranged along the vertical direction, the upper end of the flow adjusting plate is rotationally matched with the cleaning ball, and the lower end of the flow adjusting plate can move up and down relative to the upper end. The cleaning device for dispensing tank can remove most of the surface stains through low-pressure rotary spraying, can uniformly cover each area of the inner wall of the dispensing tank, and can form high-pressure jet through the flow adjusting plate to adjust the size of the water spraying opening, so that the cleaning effect and the cleaning quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning devices, in particular to a cleaning device for dispensing tanks. BACKGROUND

[0002] As a core container for preparing, mixing and storing liquid medicine or medicaments, dispensing tanks play an indispensable role in many fields such as medical treatment, pharmacy, chemical industry and laboratory. Cleaning of dispensing tanks is an indispensable step in the use of dispensing tanks, and is a key process to ensure the effectiveness, safety and compliance of medicaments. The core purpose of thoroughly cleaning dispensing tanks is to avoid cross-contamination between different batches of medicaments, ensure the quality stability of subsequent production of medicaments, and reduce the safety risks caused by chemical reactions or microbial growth due to residual drugs.

[0003] In existing dispensing tank cleaning devices, high-pressure water flow is mostly used to clean the inside of the tank. However, the spraying range of high-pressure water flow is limited, and the direction of water flow is relatively fixed, which leads to the fact that water flow cannot uniformly impact all surfaces inside the dispensing tank, and blind areas are easily formed, so that residual drugs or impurities in some areas cannot be effectively removed, making it difficult to ensure the cleaning effect and quality. SUMMARY

[0004] The present application provides a cleaning device for dispensing tanks to solve the problem that the existing cleaning device has a limited spraying range and the direction of water flow is relatively fixed, making it difficult to ensure the cleaning effect and quality.

[0005] The cleaning device for a dispensing tank adopts the following technical scheme: a cleaning device for a dispensing tank, comprising a base, a clamping part and a cleaning part; the clamping part is installed on the base and is used for clamping the dispensing tank; the cleaning part is arranged on the base and is located below the clamping part; the cleaning part comprises a cleaning ball, a supporting cylinder, a water supply part and a flow adjusting frame; the cleaning ball and the supporting cylinder are both arranged in the vertical direction and are both hollow structures; the water supply part is installed on the base and is connected with the supporting cylinder; the cleaning ball is located above the supporting cylinder and is rotationally matched with the supporting cylinder; a plurality of water injection ports are formed in the cleaning ball around the vertical direction, and the plurality of water injection ports are all arranged in the radial direction of the cleaning ball; the flow adjusting frame comprises a plurality of flow adjusting plates, the plurality of flow adjusting plates are all arc-shaped plates and are uniformly distributed around the vertical direction in the cleaning ball, the upper end of the flow adjusting plate is rotationally matched with the cleaning ball, and the lower end of the flow adjusting plate can move up and down relative to the upper end, so that the flow adjusting plate is bent in the vertical direction; the cleaning device for the dispensing tank has a first state and a second state; when in the first state, the water pressure supplied by the water supply part to the supporting cylinder is a first preset value, the lower end of the flow adjusting plate is relatively stationary relative to the upper end, and the flow adjusting plate is arranged on the side away from the water injection port in the radial direction of the cleaning ball; when in the second state, the water pressure supplied by the water supply part to the supporting cylinder is a second preset value, the second preset value is greater than the first preset value, the lower end of the flow adjusting plate moves upward relative to the upper end, and the flow adjusting plate moves to the side close to the water injection port in the radial direction of the cleaning ball.

[0006] Further, the flow adjusting frame further comprises a flow adjusting rod; a matching cylinder is coaxially and fixedly arranged on the upper end of the cleaning ball, the matching cylinder and the flow adjusting rod are both arranged in the vertical direction and are coaxial, the upper end of the flow adjusting rod is slidingly sealed with the matching cylinder through a piston plate, a first elastic member is arranged between the piston plate and the matching cylinder and is arranged in the vertical direction; the lower end of the flow adjusting rod is connected with the supporting cylinder through a limiting frame, the limiting frame can limit the rotation of the flow adjusting rod and allow the flow adjusting rod to move up and down relative to the limiting frame, and the lower end of the flow adjusting plate is fixedly connected with the flow adjusting rod.

[0007] Further, in the initial state, a space is left between the matching cylinder and the tank opening of the dispensing tank in the vertical direction; the supporting cylinder is movably installed on the base, the cleaning ball can move up and down synchronously with the supporting cylinder and can rotate relative to the supporting cylinder.

[0008] Further, the supporting cylinder comprises a first cylinder segment, a second cylinder segment and a third cylinder segment; the first cylinder segment, the second cylinder segment and the third cylinder segment are all arranged in the vertical direction and are coaxial; the cleaning ball is rotationally matched with the first cylinder segment; the second cylinder segment is located in the first cylinder segment and is fixedly connected with the first cylinder segment, and the limiting frame is located between the cleaning ball and the second cylinder segment; the third cylinder segment is located at the lower end of the second cylinder segment and is fixedly connected with the second cylinder segment, and the third cylinder segment is a corrugated telescopic cylinder.

[0009] Further, the upper end of the matching cylinder is provided with an adjusting cylinder; the first elastic member is located between the piston plate and the adjusting cylinder; in the initial state, the first elastic member abuts against the piston plate; the outer circumferential wall surface of the adjusting cylinder is uniformly provided with a plurality of protrusions; the inner circumferential wall surface of the matching cylinder is provided with a plurality of sliding grooves; the sliding grooves are obliquely arranged and are in the shape of a waist; the sliding grooves and the protrusions are arranged one by one in correspondence; each protrusion is matched with the sliding groove arranged in correspondence through an elastic sheet; and when the matching cylinder rotates, the adjusting cylinder can first move upward relative to the matching cylinder and then rotate synchronously with the matching cylinder.

[0010] Further, the two ends of the sliding groove in the vertical direction are respectively referred to as a first end and a second end; the first end is located above the second end; in the initial state, the protrusion abuts against the second end of the sliding groove, and the elastic sheet abuts against the first end of the sliding groove; and in the rotating direction of the matching cylinder, the first end is located at the rear side of the second end.

[0011] Further, the base is provided with a first rotating cylinder and a second rotating cylinder; the first rotating cylinder and the second rotating cylinder are both arranged along the vertical direction and can rotate around their own axes; the first rotating cylinder is located above the second rotating cylinder and is in rotating cooperation with the second rotating cylinder; the clamping part and the cleaning part are both provided with a plurality of parts; the plurality of clamping parts are uniformly arranged on the first rotating cylinder along the vertical direction; and the plurality of cleaning parts are uniformly arranged on the second rotating cylinder along the vertical direction.

[0012] Further, the clamping part comprises a main frame body and two clamping jaws; the main frame body is arranged along the radial direction of the first rotating cylinder and is rotatably mounted on the first rotating cylinder around its own axis; the two clamping jaws are both mounted on the main frame body and can rotate with the main frame body; the clamping jaws are arranged one by one in correspondence with the cleaning parts; and the clamping jaws are used for clamping the dispensing can.

[0013] Further, the device further comprises a conveying part; the conveying part comprises a feeding disc, a mounting plate and a discharging disc; the feeding disc, the mounting plate and the discharging disc are sequentially arranged on the base along a first direction; the first direction is a horizontal direction; the central axes of the feeding disc and the discharging disc are both arranged along the vertical direction and can rotate around their own axes; a plurality of first clamping holes are arranged on the circumferential direction of the feeding disc; a plurality of second clamping holes are arranged on the circumferential direction of the discharging disc; the dispensing can can abut against the first clamping hole or the second clamping hole; the mounting plate is sequentially provided with a first pushing surface, a second pushing surface and a third pushing surface along the rotating direction of the first rotating cylinder; a rotating member is arranged on the clamping jaw; the rotating member can move along the first pushing surface, the second pushing surface and the third pushing surface when the clamping jaw rotates with the first rotating cylinder; the clamping jaw has a clamping state and an open state; when in the clamping state, the clamping jaw can clamp the dispensing can; when in the open state, the clamping jaw can be separated from the dispensing can; when the rotating member is at the first pushing surface and the third pushing surface, the clamping jaw is in the clamping state; and when the rotating member is at the second pushing surface, the clamping jaw is in the open state.

[0014] Further, the clamping jaw comprises two clamping arms which are sequentially arranged around the vertical direction on the main frame body and connected by a third elastic member; the clamping arm is rotatably installed on the main frame body through a rotating shaft which is arranged along the vertical direction and fixedly connected with the clamping arm; a synchronous plate is fixedly connected on the clamping arm, the synchronous plate is arranged perpendicularly to the clamping arm, and the synchronous plates of the two clamping arms are sequentially arranged around the vertical direction and abut against each other in the initial state; the rotating member comprises a swing arm and a roller, the swing arm is coaxially and fixedly installed at the lower end of one of the rotating shafts, and the roller is fixedly connected with the swing arm; the clamping jaw can make the roller move along the first pushing surface, the second pushing surface and the third pushing surface when the clamping jaw rotates with the first rotating cylinder.

[0015] The cleaning device for the dispensing tank has the advantages that the cleaning device for the dispensing tank is provided with the clamping part, the cleaning part and the water supply member on the base, and the dispensing tank is uniformly sprayed at first and then high-pressure cleaned by adjusting the water supply pressure. That is, in the first state, most of the surface stains are removed by low-pressure rotary spraying, and each area of the inner wall of the dispensing tank can be uniformly covered, in the second state, the high-pressure jet is formed by adjusting the size of the water outlet through the flow adjusting plate, and the stubborn stains are removed in a targeted manner, the cleaning efficiency and the cleaning depth are considered, and the cleaning effect and the cleaning quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of an embodiment of the cleaning device for the dispensing tank of the present application;

[0018] Figure 2 FIG. 2 is a schematic diagram of the overall structure of an embodiment of the cleaning device for the dispensing tank of the present application without the shell;

[0019] Figure 3 FIG. 3 is a schematic diagram of the cleaning part of an embodiment of the cleaning device for the dispensing tank of the present application; Figure 2 FIG. 4 is an enlarged view of position A in FIG. 3;

[0020] Figure 4 FIG. 5 is a schematic diagram of the cleaning part of an embodiment of the cleaning device for the dispensing tank of the present application;

[0021] Figure 5 FIG. 6 is a sectional view of the cleaning part of an embodiment of the cleaning device for the dispensing tank of the present application;

[0022] Figure 6 FIG. 7 is an exploded view of the cleaning part of an embodiment of the cleaning device for the dispensing tank of the present application;

[0023] Figure 7 A schematic diagram of the flow adjustment plate in the flow adjustment frame of an embodiment of the cleaning device for a dispensing can before the flow adjustment plate moves in the radial direction of the cleaning ball;

[0024] Figure 8 A state diagram of the elastic sheet on the adjustment cylinder of an embodiment of the cleaning device for a dispensing can before the elastic sheet is pressed and cooperates with the sliding groove on the cooperating cylinder;

[0025] Figure 9 A state diagram of the elastic sheet on the adjustment cylinder of an embodiment of the cleaning device for a dispensing can after the elastic sheet is pressed and cooperates with the sliding groove on the cooperating cylinder;

[0026] Figure 10 A schematic diagram of a clamping part and a partial conveying part of an embodiment of the cleaning device for a dispensing can;

[0027] Figure 11 A schematic diagram of a clamping part and a partial conveying part of an embodiment of the cleaning device for a dispensing can from another perspective;

[0028] Figure 12 A front view of a clamping part and a partial conveying part of an embodiment of the cleaning device for a dispensing can;

[0029] Figure 13 A Figure 12 A sectional view along B-B;

[0030] Figure 14 A bottom view of a clamping part and a partial conveying part of an embodiment of the cleaning device for a dispensing can;

[0031] Figure 15 A sectional view of a clamping part of an embodiment of the cleaning device for a dispensing can.

[0032] In the figure: 100, base; 110, first rotating drum; 120, second rotating drum; 130, cover; 200, clamping part; 210, main frame body; 220, clamping jaw; 221, clamping arm; 222, third elastic member; 223, rotating shaft; 224, synchronous plate; 225, swing arm; 226, roller; 300, cleaning part; 310, cleaning ball; 311, water spraying port; 312, matching cylinder; 313, first elastic member; 314, adjusting cylinder; 315, protruding block; 316, sliding groove; 317, elastic sheet; 320, supporting cylinder; 321, first cylinder segment; 322, second cylinder segment; 323, third cylinder segment; 324, connecting cylinder; 325, second elastic member; 330, flow adjusting frame; 331, flow adjusting plate; 332, flow adjusting rod; 333, piston plate; 334, limiting frame; 400, conveying part; 410, feeding disc; 411, first clamping opening; 420, mounting plate; 421, first pushing surface; 422, second pushing surface; 423, third pushing surface; 430, discharging disc; 431, second clamping opening; 440, conveying frame; 450, conveying belt; 460, limiting rod; 470, screw rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] An embodiment of the cleaning device for a dispensing canister according to the present application is shown in Figures 1 to 15 .

[0035] A cleaning device for a dispensing canister includes a base 100, a clamping part 200, and a cleaning part 300. The clamping part 200 is installed on the base 100 and used to clamp the dispensing canister. The cleaning part 300 is arranged on the base 100 and below the clamping part 200.

[0036] The cleaning part 300 comprises a cleaning ball 310, a supporting cylinder 320, a water supply member and a flow adjusting frame 330. The cleaning ball 310 and the supporting cylinder 320 are both arranged along a vertical direction and are both hollow structures. The water supply member is installed on the base 100 and is connected with the supporting cylinder 320. The cleaning ball 310 is located above the supporting cylinder 320 and is rotationally connected with the supporting cylinder 320. A plurality of water spraying openings 311 are formed on the cleaning ball 310 around the vertical direction, and the plurality of water spraying openings 311 are all arranged obliquely relative to the radial direction of the cleaning ball 310. The flow adjusting frame 330 comprises a plurality of flow adjusting plates 331, the plurality of flow adjusting plates 331 are all arc-shaped plates and are uniformly distributed around the vertical direction in the cleaning ball 310, the upper end of the flow adjusting plate 331 is rotationally connected with the cleaning ball 310, and the lower end of the flow adjusting plate 331 can move up and down relative to the upper end, so that the flow adjusting plate 331 is bent in the vertical direction.

[0037] The cleaning device for the dispensing can has a first state and a second state. In the first state, the water supply member supplies water to the supporting cylinder 320 at a first preset water pressure, the lower end of the flow adjusting plate 331 is relatively stationary relative to the upper end of the flow adjusting plate 331, and the flow adjusting plate 331 is arranged on the side away from the water spraying opening 311 in the radial direction of the cleaning ball 310. In the second state, the water supply member supplies water to the supporting cylinder 320 at a second preset water pressure, the second preset water pressure is greater than the first preset water pressure, the lower end of the flow adjusting plate 331 moves upward relative to the upper end of the flow adjusting plate 331, and the flow adjusting plate 331 moves to the side close to the water spraying opening 311 in the radial direction of the cleaning ball 310.

[0038] The water supply member comprises a water pump, and the water pump is connected with the supporting cylinder 320 through a water pipe.

[0039] Specifically, the flow adjusting plate 331 and the water spraying opening 311 are arranged one by one. The spacing between the two ends of the flow adjusting plate 331 around the vertical direction is equal to the spacing between the two ends of the water spraying opening 311 around the vertical direction, and the movement of the flow adjusting plate 331 to the side close to the water spraying opening 311 in the radial direction of the cleaning ball 310 can block the water spraying opening 311.

[0040] The embodiment is provided with the clamping part 200 and the cleaning part 300 on the base 100, and the first uniform spraying and the second high-pressure cleaning of the dispensing tank are realized by adjusting the water pressure. Specifically, when the dispensing tank needs to be cleaned, the dispensing tank is clamped on the clamping part 200, and the opening of the dispensing tank faces downward and toward the cleaning part 300. Then, the water supply member supplies water to the cleaning ball 310 through the supporting cylinder 320, and the water pressure is the first preset value. At this time, the dispensing tank cleaning device is in the first state. When the water flows from the supporting cylinder 320 to the cleaning ball 310, the lower end of the flow adjusting plate 331 remains relatively stationary with the upper end thereof. The flow adjusting plate 331 is arranged away from the side of the corresponding water outlet 311 of the cleaning ball 310 in the radial direction of the cleaning ball 310. Under the action of pressure, water is sprayed from the water outlet 311 of the cleaning ball 310. Due to the inclined arrangement of the water outlet 311, the water flow generates a reaction force when sprayed, which drives the cleaning ball 310 to rotate relative to the supporting cylinder 320. The rotating cleaning ball 310 cooperates with the inclined water outlet 311 to clean the inner wall of the dispensing tank by spraying, and continuously flushes the inner wall of the dispensing tank with constant water flow pressure and flow rate, forms a stable cleaning coverage, and cleans more uniformly. In this state, most of the stains in the dispensing tank are uniformly cleaned, and the spraying blind area is reduced.

[0041] When the preliminary cleaning is completed, the water supply pressure of the water supply member is increased to the second preset value. At this time, the lower end of the flow adjusting plate 331 moves upward relative to the upper end thereof. The flow adjusting plate 331 moves to the side close to the water outlet 311 in the radial direction of the cleaning ball 310. During the movement of the flow adjusting plate 331 in the radial direction of the cleaning ball 310, the entire cleaning ball 310 always remains in the state of rotating and spraying water. That is, the cleaning ball 310 continuously rotates relative to the flow adjusting plate 331. Therefore, as the flow adjusting plate 331 continuously moves in the radial direction of the cleaning ball 310, when the flow adjusting plate 331 moves in the radial direction of the cleaning ball 310 to a position where the flow adjusting plate 331 can block the water outlet 311 of the cleaning ball 310, the cleaning ball 310 will break through this "dead point" position under the driving of the moment of inertia, so that the two always remain in the relative rotating state and continuously switch between "blocking" and "opening", so that the water outlet 311 of the water outlet 311 is intermittent and pulse type, and a high-pressure water jet is generated to increase the impact force on the inner wall of the dispensing tank. The stubborn stains attached to the inner wall of the dispensing tank are cleaned, and the cleaning effect and quality of the dispensing tank are improved. In actual use, the dispensing tank cleaning device can be switched between the first state and the second state as needed to ensure the cleaning quality of the dispensing tank.

[0042] In a further embodiment, the flow adjusting frame 330 further comprises a flow adjusting rod 332. The upper end of the cleaning ball 310 is coaxially and fixedly provided with a matching cylinder 312, the matching cylinder 312 and the flow adjusting rod 332 are coaxially arranged along the vertical direction, the upper end of the flow adjusting rod 332 is slidingly sealed with the matching cylinder 312 through a piston plate 333, a first elastic member 313 is arranged between the piston plate 333 and the matching cylinder 312, the first elastic member 313 is arranged along the vertical direction, and the first elastic member 313 is a compression spring. The lower end of the flow adjusting rod 332 is connected with the supporting cylinder 320 through a limiting frame 334, the limiting frame 334 can limit the self-rotating rotation of the flow adjusting rod 332 and allow the flow adjusting rod 332 to move up and down relative to the limiting frame 334, and the lower end of the flow adjusting plate 331 is fixedly connected with the flow adjusting rod 332.

[0043] The limiting frame 334 is an annular frame, and a through hole allowing water flow is formed in the limiting frame 334. The limiting frame 334 is in key groove cooperation with the flow adjusting rod 332, so that the limiting frame 334 can limit the self-rotating rotation of the flow adjusting rod 332 and allow the flow adjusting rod 332 to move up and down relative to the limiting frame 334.

[0044] In the embodiment, the flow adjusting rod 332 is arranged, and when water flows from the supporting cylinder 320 into the cleaning ball 310 during use, the water pressure will have a tendency to push the piston plate 333 upward. When the water pressure is at a first preset value, the piston plate 333 remains relatively stationary at this time. When the water pressure is at a second preset value, the piston plate 333 will move upward at this time, and the upward movement of the piston plate 333 will drive the lower end of the flow adjusting plate 331 to move upward relative to the upper end of the flow adjusting plate 331 through the flow adjusting rod 332, so that the upper and lower ends of the flow adjusting plate 331 are close to each other.

[0045] In a further embodiment, in the initial state, a space is left between the matching cylinder 312 and the mouth of the dosing tank in the vertical direction. The supporting cylinder 320 is movably installed on the base 100, and the cleaning ball 310 can move up and down synchronously with the supporting cylinder 320 and can rotate relative to the supporting cylinder 320.

[0046] The supporting cylinder 320 comprises a first cylinder segment 321, a second cylinder segment 322 and a third cylinder segment 323. The first cylinder segment 321, the second cylinder segment 322 and the third cylinder segment 323 are coaxially arranged along the vertical direction. The cleaning ball 310 is in rotational cooperation with the first cylinder segment 321, and a bearing is installed between the cleaning ball 310 and the first cylinder segment 321, so that the cleaning ball 310 can move up and down synchronously with the supporting cylinder 320 and can rotate relative to the supporting cylinder 320. The second cylinder segment 322 is located in the first cylinder segment 321 and is fixedly connected with the first cylinder segment 321 by bolts, and the limiting frame 334 is located between the cleaning ball 310 and the second cylinder segment 322. The third cylinder segment 323 is located at the lower end of the second cylinder segment 322 and is fixedly connected with the second cylinder segment 322, and the third cylinder segment 323 is a corrugated telescopic cylinder.

[0047] A connecting cylinder 324 is fixedly arranged at the lower end of the third cylinder segment 323, and the connecting cylinder 324 is used to be connected with a water pipe of a water pump. A second elastic member 325 is arranged between the second cylinder segment 322 and the connecting cylinder 324, and the second elastic member 325 is arranged along the vertical direction and is a tension spring. Specifically, a connecting seat is arranged on the water pipe, and the connecting cylinder 324 is screwed with the connecting seat.

[0048] By leaving a space between the matching cylinder 312 and the jar opening of the dispensing jar in the vertical direction in the initial state, the whole cleaning part 300 does not extend into the dispensing jar before cleaning, which facilitates the installation of the dispensing jar on the clamping part 200 and avoids interference. When water is supplied into the supporting cylinder 320 during cleaning, the third cylinder segment 323 of the supporting cylinder 320 will move upward under the drive of water pressure, and the second cylinder segment 322 and the first cylinder segment 321 will drive the cleaning ball 310 to move upward, so that the cleaning ball 310 can extend into the dispensing jar to clean the dispensing jar.

[0049] In a further embodiment, the base 100 is provided with a first rotating cylinder 110 and a second rotating cylinder 120, and the first rotating cylinder 110 and the second rotating cylinder 120 are both arranged along the vertical direction and can rotate around their own axes. The first rotating cylinder 110 is located above the second rotating cylinder 120 and is in rotational cooperation with the second rotating cylinder 120. The clamping part 200 and the cleaning part 300 are both provided in plurality. The plurality of clamping parts 200 are uniformly distributed on the first rotating cylinder 110 along the vertical direction. The plurality of cleaning parts 300 are uniformly distributed on the second rotating cylinder 120 along the vertical direction.

[0050] Among them, the base 100 is provided with a first driving member and a second driving member, the first driving member is used to drive the first rotating cylinder 110 to rotate, and the second driving member is used to drive the second rotating cylinder 120 to rotate. The first driving member and the second driving member are both motors.

[0051] Further, the first rotating cylinder 110 and the second rotating cylinder 120 are provided with a cover 130. By arranging the cover 130, water splashing is prevented. Preferably, the cover 130 is a glass cover, which facilitates the observation of the cleaning condition by the operator. Of course, other materials can also be selected.

[0052] By arranging the plurality of clamping parts 200 and the plurality of cleaning parts 300, a plurality of dispensing jars can be cleaned synchronously, and the cleaning efficiency is improved. Before the clamping part 200 clamps the dispensing jar, the first driving member is started alone, so that the first rotating cylinder 110 and the second rotating cylinder 120 relatively rotate. After the clamping part 200 clamps the dispensing jar and the jar opening of the dispensing jar is aligned with the cleaning part 300, the first rotating cylinder 110 and the second rotating cylinder 120 are synchronously rotated, and the cleaning is completed in the process of rotation.

[0053] In a further embodiment, the clamping part 200 comprises a main frame 210 arranged along the radial direction of the first rotary drum 110 and rotatably mounted on the first rotary drum 110 about its own axis, and two clamping jaws 220 each mounted on the main frame 210 and rotatable with the main frame 210, the clamping jaws 220 being arranged in one-to-one correspondence with the cleaning parts 300 and used for clamping the dispensing can.

[0054] The first rotary drum 110 is provided with a plurality of third driving members corresponding to the main frame 210, which are used to drive the main frame 210 to rotate about its own axis. The third driving members are motors. In this embodiment, the clamping jaws 220 can be the commonly used clamping jaws 220 in the prior art.

[0055] In use, the dispensing can can be clamped with its can opening facing upwards, and then the main frame 210 is rotated about its own axis to make the can opening of the dispensing can face downwards, and in this process, the cooperating cylinder 312 is spaced apart from the can opening of the dispensing can to avoid interference.

[0056] In another possible embodiment, the cooperating cylinder 312 is provided with an adjusting cylinder 314 at its upper end. The first elastic member 313 is located between the piston plate 333 and the adjusting cylinder 314. In the initial state, the first elastic member 313 abuts against the piston plate 333.

[0057] The adjusting cylinder 314 is uniformly provided with a plurality of protrusions 315 on its outer peripheral wall surface, and the cooperating cylinder 312 is provided with a plurality of sliding grooves 316 on its inner peripheral wall surface, the sliding grooves 316 being obliquely arranged and being waist-shaped. The sliding grooves 316 are arranged in one-to-one correspondence with the protrusions 315, each protrusion 315 is cooperated with the sliding groove 316 corresponding thereto through a spring piece 317, and when the cooperating cylinder 312 rotates, the adjusting cylinder 314 can first move upward relative to the cooperating cylinder 312 and then rotate synchronously with the cooperating cylinder 312.

[0058] The two ends of the sliding groove 316 in the vertical direction are referred to as a first end and a second end, respectively, the first end being located above the second end, the protrusion 315 abutting against the second end of the sliding groove 316 and the spring piece 317 abutting against the first end of the sliding groove 316 in the initial state, and the first end being located on the rear side of the second end in the rotating direction of the cooperating cylinder 312. Referring to FIG. 6, the cooperating cylinder 312 is counterclockwise rotated in the top view, the direction close to the side of the counterclockwise rotating arrow is referred to as front, and the direction away from the side of the counterclockwise rotating arrow is referred to as rear. Figure 8 Figure 8 The direction close to the side of the counterclockwise rotating arrow is referred to as front, and the direction away from the side of the counterclockwise rotating arrow is referred to as rear.

[0059] The cooperating cylinder 312 is rotated to compress the spring piece 317, and in the process of compressing the spring piece 317, the protrusion 315 moves upward relative to the cooperating cylinder 312, and the adjusting cylinder 314 is cooperated with the cooperating cylinder 312 to rotate. Figure 8 from​Figure 9 When the convex block 315 moves upward, the adjusting cylinder 314 will move upward, and the first elastic member 313 will be separated from the piston plate 333 until the elastic sheet 317 is compressed to enable the fitting cylinder 312 to drive the adjusting cylinder 314 to rotate synchronously.

[0060] Alternatively, in another possible embodiment, the adjusting cylinder 314 is provided with a plurality of blades around the circumferential direction thereof. The blades are not shown in the specification drawings. By providing a plurality of blades, the resistance to the rotation of the adjusting cylinder 314 is increased, and the compression amount of the elastic sheet 317 is greater.

[0061] When the cleaning device for a dispensing tank is in the second state, if the flow regulating plate 331 and the cleaning ball 310 are stuck together to affect the water outlet of the water jet 311, that is, the flow regulating plate 331 completely blocks the water jet 311, the rotation of the cleaning ball 310 is limited, and thus the elastic sheet 317 will reset and drive the adjusting cylinder 314 to move downward. The adjusting cylinder 314 moves downward to drive the first elastic member 313 to move downward, and the first elastic member 313 will abut against the piston plate 333 and drive the flow regulating rod 332 to move downward in the opposite direction through the piston plate 333. The flow regulating rod 332 moves downward to move the flow regulating plate 331 along the radial direction of the cleaning ball 310 to the side away from the water jet 311, thereby causing the plurality of flow regulating plates 331 to shrink and eliminate the jamming between the flow regulating plate 331 and the cleaning ball 310.

[0062] In another possible embodiment, a cleaning device for a dispensing tank further comprises a conveying part 400. The conveying part 400 comprises a feeding disc 410, a mounting plate 420, and a discharging disc 430. The feeding disc 410, the mounting plate 420, and the discharging disc 430 are sequentially arranged in a first direction on the base 100, and the first direction is a horizontal direction. The center axes of the feeding disc 410 and the discharging disc 430 are arranged in a vertical direction and can rotate around their own axes. A plurality of first clamping holes 411 are formed in the circumferential direction of the feeding disc 410. A plurality of second clamping holes 431 are formed in the circumferential direction of the discharging disc 430. The dispensing tank can abut against the first clamping hole 411 or the second clamping hole 431.

[0063] The installation plate 420 is sequentially provided with a first pushing surface 421, a second pushing surface 422 and a third pushing surface 423 along the rotating direction of the first rotary drum 110. The clamping jaw 220 is provided with a rotating part, and the clamping jaw 220 rotates with the first rotary drum 110 to enable the rotating part to move along the first pushing surface 421, the second pushing surface 422 and the third pushing surface 423. The distance from the second abutting surface to the central axis of the first rotary drum 110 along the radial direction of the first rotary drum 110 is greater than the distance from the first abutting surface to the central axis of the first rotary drum 110 along the radial direction of the first rotary drum 110, and the distance from the first abutting surface to the central axis of the first rotary drum 110 along the radial direction of the first rotary drum 110 is equal to the distance from the third abutting surface to the central axis of the first rotary drum 110 along the radial direction of the first rotary drum 110.

[0064] The clamping jaw 220 has a clamping state and an open state. In the clamping state, the clamping jaw 220 can clamp the dispensing canister. In the open state, the clamping jaw 220 can be separated from the dispensing canister. When the rotating part is at the first pushing surface 421 and the third pushing surface 423, the clamping jaw 220 is in the clamping state. When the rotating part is at the second pushing surface 422, the clamping jaw 220 is in the open state. In the feeding disc 410, only one first clamping hole 411 can be tangent to the second pushing surface 422. In the discharging disc 430, only one second clamping hole 431 can be tangent to the second pushing surface 422.

[0065] The clamping jaw 220 includes two clamping arms 221, which are sequentially arranged around the vertical direction on the main frame 210 and are connected by a third elastic member 222, which is a tension spring. The clamping arm 221 is rotatably installed on the main frame 210 by a rotating shaft 223, which is arranged in the vertical direction and is fixedly connected with the clamping arm 221. The clamping arm 221 is fixedly connected with a synchronous plate 224, which is arranged perpendicularly to the clamping arm 221. In the initial state, the synchronous plates 224 of the two clamping arms 221 are sequentially arranged around the vertical direction and abut against each other. The rotating part includes a swing arm 225 and a roller 226. The swing arm 225 is coaxially and fixedly installed at the lower end of one of the rotating shafts 223. The roller 226 is fixedly connected with the swing arm 225. The clamping jaw 220 rotates with the first rotary drum 110 to enable the roller 226 to move along the first pushing surface 421, the second pushing surface 422 and the third pushing surface 423.

[0066] In use, referring to Figure 10As shown, the dispensing tank is sent to one side of the feeding disc 410, and the dispensing tank abuts against the first clamping hole 411 on the feeding disc 410. Then, the dispensing tank rotates synchronously with the feeding disc 410 (counterclockwise in the top view). When the dispensing tank rotates to the intersection of the second pushing surface 422 and the third pushing surface 423, the clamping part 200 rotates with the first rotary cylinder 110, and the feeding disc 410 rotates, so that the clamping jaw 220 switches from the open state to the closed state, and the dispensing tank is separated from the first clamping hole 411. When the dispensing tank rotates to the intersection of the first pushing surface 421 and the second pushing surface 422, the clamping part 200 rotates with the first rotary cylinder 110, and the feeding disc 410 rotates (counterclockwise in the top view), so that the clamping jaw 220 switches from the closed state to the open state, and the dispensing tank abuts against the second clamping hole 431.

[0067] The specific process of switching the clamping jaw 220 between the open state and the closed state is that the distance from the second abutting surface to the center axis of the first rotary cylinder 110 in the radial direction of the first rotary cylinder 110 is greater than the distance from the first abutting surface to the center axis of the first rotary cylinder 110 in the radial direction of the first rotary cylinder 110, and the distance from the first abutting surface to the center axis of the first rotary cylinder 110 in the radial direction of the first rotary cylinder 110 is equal to the distance from the third abutting surface to the center axis of the first rotary cylinder 110 in the radial direction of the first rotary cylinder 110.

[0068] Therefore, when the clamping jaw 220 moves from the first pushing surface 421 to the second pushing surface 422, the roller 226 drives the rotating shaft 223 to rotate relative to the main frame 210, and the rotating shaft 223 drives the clamping arm 221 to rotate synchronously, and the synchronous plate 224 on one clamping arm 221 pushes the synchronous plate 224 on the other clamping arm 221, so that the synchronous plates 224 of the two clamping arms 221 in the same clamping jaw 220 are close to each other, thereby opening the clamping jaw 220 and stretching the third elastic member 222.

[0069] Under the action of the third elastic member 222, the two clamping arms 221 always have a tendency to move close to each other and clamp, so that when the clamping jaw 220 moves from the second pushing surface 422 to the third pushing surface 423, the third elastic member 222 drives the two clamping arms 221 to move close to each other and clamp, thereby reversing the rotating shaft 223 relative to the main frame 210, and reversing the roller 226 through the swing arm 225, thereby clamping the dispensing tank. Then, the first rotary cylinder 110 drives the clamping jaw 220 and the dispensing tank thereon to rotate synchronously, and completes the cleaning before the dispensing tank rotates to the feeding disc 430.

[0070] In a further embodiment, the conveying part 400 further comprises a conveying frame 440 fixedly installed on the base 100 and a conveying belt 450 rotatably installed on the conveying frame 440 and located below the mounting plate 420, the conveying belt 450 being capable of moving the dispensing can in the first direction.

[0071] Further, the conveying frame 440 is provided with two limiting members, the two limiting members being respectively located on two sides of the mounting plate 420 in the first direction, the limiting member comprising two limiting rods 460, the two limiting rods 460 being respectively arranged in the first direction and parallelly arranged in the second direction, the two limiting rods 460 defining a limiting space for limiting the dispensing can therebetween, the second direction being horizontal and perpendicular to the first direction.

[0072] Still further, the conveying frame 440 is provided with a screw rod 470, the screw rod 470 being located on a side of the feeding disc 410 away from the discharging disc 430 in the first direction, the screw rod 470 being arranged in the first direction and being capable of rotating about its own axis.

[0073] In the above embodiment, the base 100 is provided with a fourth driving member for driving the screw rod 470 to rotate about its own axis, the fourth driving member being an electric motor.

[0074] In use, the dispensing can is placed on the conveying belt 450 and between the two limiting rods 460, the dispensing can is driven by the conveying belt 450 to move in the first direction towards the side close to the feeding disc 410, and the movement of the dispensing can in the first direction is limited by the limiting space defined between the two limiting rods 460, so that the dispensing can moves in an orderly manner, and when the dispensing can passes through the screw rod 470, the threads on the screw rod 470 can separate the dispensing can into a fixed-pitch arrangement. When the dispensing can passes through the feeding disc 410, the dispensing can will abut against the first clamping opening 411 and be driven to rotate by the feeding disc 410. After the dispensing can is cleaned and returns to the discharging disc 430 from the clamping part 200, the conveying belt 450 will continue to drive the dispensing can to move in the first direction and away from the second clamping opening 431.

[0075] In combination with the above embodiment, the specific working process is as follows:

[0076] In use, the dispensing can is placed on the conveying belt 450, and the dispensing can is driven by the conveying belt 450 to move in the first direction towards the side close to the feeding disc 410, and when the dispensing can passes through the feeding disc 410, the dispensing can will abut against the first clamping opening 411 and be driven to rotate by the feeding disc 410.

[0077] Referring to Figure 10 the dispensing can will rotate synchronously with the feeding disc 410 Figure 10When the dispensing can is rotated to the intersection of the second push surface 422 and the third push surface 423, at this time the whole clamping part 200 rotates with the first rotary cylinder 110 in revolution, and under the cooperation of the rotation of the feeding disc 410, the clamping jaw 220 will switch from the open state to the closed state, and at the same time the dispensing can will be separated from the abutment with the first clamping hole 411.

[0078] After the clamping part 200 clamps the dispensing can and the can opening of the dispensing can is aligned with the cleaning part 300, the main frame 210 is rotated around its own axis, so that the can opening of the dispensing can faces downward, and in this process, the cooperating cylinder 312 and the can opening of the dispensing can are spaced apart to avoid interference. And in the above process, the first rotary cylinder 110 rotates and the second rotary cylinder 120 is stationary. Then the cleaning is started, and during the cleaning, the first rotary cylinder 110 and the second rotary cylinder 120 are rotated synchronously, and the cleaning is completed during the rotation.

[0079] Specifically, the water supply member supplies water to the cleaning ball 310 through the supporting cylinder 320, and the water pressure is a first preset value, at this time the dispensing can cleaning device is in a first state, when water is supplied to the supporting cylinder 320. The third cylinder segment 323 of the supporting cylinder 320 will move upward under the drive of the water pressure, and drive the cleaning ball 310 upward through the second cylinder segment 322 and the first cylinder segment 321, so that the cleaning ball 310 can extend into the dispensing can.

[0080] When the water flows from the supporting cylinder 320 to the cleaning ball 310, the lower end of the flow adjusting plate 331 is relatively stationary with the upper end thereof, the flow adjusting plate 331 is arranged away from the side of the water jet 311 corresponding to the arrangement thereof in the radial direction of the cleaning ball 310, and the water is jetted from the water jet 311 on the cleaning ball 310 under the action of pressure; due to the inclined arrangement of the water jet 311, the water jet generates a reaction force to drive the cleaning ball 310 to rotate relative to the supporting cylinder 320, the rotating cleaning ball 310 cooperates with the inclined water jet 311 to clean the inner wall of the dispensing can by spraying, and the inner wall of the dispensing can is continuously scoured by the constant water flow pressure and flow, forming a stable cleaning coverage, and the cleaning is more uniform, which uniformly cleans most of the stains in the dispensing can and reduces the spraying blind area.

[0081] When the preliminary cleaning is completed, the water supply pressure of the water supply member is increased to a second preset value, and the piston plate 333 will move upward, which will drive the lower end of the flow adjusting plate 331 to move upward relative to the upper end thereof through the flow adjusting rod 332, so that the upper and lower ends of the flow adjusting plate 331 are close to each other.

[0082] The flow adjusting plate 331 moves to the side close to the water spraying port 311 in the radial direction of the cleaning ball 310, and in the process of the movement of the flow adjusting plate 331 in the radial direction of the cleaning ball 310, the entire cleaning ball 310 also always keeps the state of rotating water spraying, that is, the cleaning ball 310 is constantly rotating relative to the flow adjusting plate 331. Therefore, with the constant movement of the flow adjusting plate 331 in the radial direction of the cleaning ball 310, when the flow adjusting plate 331 is moved to the position where the flow adjusting plate 331 is sufficient to block the water spraying port 311 of the cleaning ball 310 in the radial direction of the cleaning ball 310, at this time, the cleaning ball 310 will break through this "dead point" position under the driving of the moment of inertia, so that the two always keep the relative rotating state and constantly switch between "blocking" and "opening", so that the water outlet of the water spraying port 311 is intermittent pulse type, high-pressure water jet impact is generated, the impact force on the inner wall of the dispensing tank is increased, and stubborn stains attached to the inner wall of the dispensing tank are cleaned, the cleaning effect and cleaning quality of the dispensing tank are improved. Before the dispensing tank rotates to the intersection of the first pushing surface 421 and the second pushing surface 422, the water supply to the water supply device where the dispensing tank is located is stopped.

[0083] When the dispensing tank rotates to the intersection of the first pushing surface 421 and the second pushing surface 422, at this time, under the cooperation of the entire clamping part 200 with the first rotary cylinder 110 and the rotation of the unloading disc 430 (counterclockwise from the top view) Figure 10 , the clamping jaw 220 will switch from the closed state to the open state, and at the same time, the dispensing tank will abut against the second clamping opening 431. Then the conveying belt 450 will drive the dispensing tank to continue moving in the first direction and leave the second clamping opening 431.

[0084] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cleaning device for a dispensing canister, characterized by: The device comprises a base, a clamping part and a cleaning part; the clamping part is installed on the base and used for clamping a dispensing tank; the cleaning part is arranged on the base below the clamping part; the cleaning part comprises a cleaning ball, a supporting cylinder, a water supply part and a flow adjusting frame; the cleaning ball and the supporting cylinder are arranged along a vertical direction and are both hollow structures; the water supply part is installed on the base and connected with the supporting cylinder; the cleaning ball is arranged above the supporting cylinder and rotationally connected with the supporting cylinder; a plurality of water spraying openings are arranged on the cleaning ball along the vertical direction; the plurality of water spraying openings are arranged obliquely relative to a radial direction of the cleaning ball; the flow adjusting frame comprises a plurality of flow adjusting plates; the plurality of flow adjusting plates are arc-shaped plates and are arranged uniformly around the vertical direction in the cleaning ball; an upper end of the flow adjusting plate is rotationally connected with the cleaning ball; a lower end of the flow adjusting plate can move up and down relative to the upper end, so that the flow adjusting plate is bent in the vertical direction; the dispensing tank cleaning device has a first state and a second state; when in the first state, the water supply part supplies water to the supporting cylinder at a first preset water pressure; the lower end of the flow adjusting plate is relatively stationary relative to the upper end; the flow adjusting plate is arranged away from a side of the cleaning ball where the water spraying openings are located; when in the second state, the water supply part supplies water to the supporting cylinder at a second preset water pressure; the second preset water pressure is greater than the first preset water pressure; the lower end of the flow adjusting plate moves up relative to the upper end; the flow adjusting plate moves to a side of the cleaning ball where the water spraying openings are located.

2. A cleaning device for a dispensing can according to claim 1, characterized in that: The flow adjusting frame further comprises a flow adjusting rod; a matching cylinder is coaxially and fixedly arranged on an upper end of the cleaning ball; the matching cylinder and the flow adjusting rod are arranged along the vertical direction and are coaxial; an upper end of the flow adjusting rod is slidingly sealed with the matching cylinder through a piston plate; a first elastic member is arranged between the piston plate and the matching cylinder and arranged along the vertical direction; a lower end of the flow adjusting rod is connected with the supporting cylinder through a limiting frame; the limiting frame can limit the self-rotation of the flow adjusting rod and allow the flow adjusting rod to move up and down relative to the limiting frame; the lower end of the flow adjusting plate is fixedly connected with the flow adjusting rod.

3. A cleaning device for a medicament delivery pen according to claim 2, characterized in that: In an initial state, a space is left between the matching cylinder and a tank opening of the dispensing tank in the vertical direction; the supporting cylinder is movably installed on the base; the cleaning ball can move up and down synchronously with the supporting cylinder and can rotate relative to the supporting cylinder.

4. A cleaning device for a medicament delivery pen according to claim 3, characterized in that: The supporting cylinder comprises a first cylinder segment, a second cylinder segment and a third cylinder segment; the first cylinder segment, the second cylinder segment and the third cylinder segment are arranged along the vertical direction and are coaxial; the cleaning ball is rotationally connected with the first cylinder segment; the second cylinder segment is arranged in the first cylinder segment and is fixedly connected with the first cylinder segment; the limiting frame is arranged between the cleaning ball and the second cylinder segment; the third cylinder segment is arranged at a lower end of the second cylinder segment and is fixedly connected with the second cylinder segment; the third cylinder segment is a corrugated telescopic cylinder.

5. A cleaning device for a medicament delivery pen according to claim 4, characterized in that: An adjusting cylinder is inserted into an upper end of the matching cylinder; the first elastic member is arranged between the piston plate and the adjusting cylinder; in the initial state, the first elastic member abuts against the piston plate; a plurality of protrusions are uniformly arranged on an outer peripheral wall surface of the adjusting cylinder; a plurality of sliding grooves are arranged on an inner peripheral wall surface of the matching cylinder; the sliding grooves are obliquely arranged and are waist-shaped grooves; the sliding grooves and the protrusions are arranged one-to-one; each protrusion is matched with the sliding groove corresponding thereto through a spring sheet; when the matching cylinder rotates, the adjusting cylinder can first move up relative to the matching cylinder and then rotate synchronously with the matching cylinder.

6. A cleaning device for a medicament delivery pen according to claim 5, characterized in that: The two ends of the sliding groove in the vertical direction are respectively referred to as a first end and a second end, the first end is located above the second end, the protruding block abuts against the second end of the sliding groove in the initial state, and the elastic sheet abuts against the first end of the sliding groove, and in the rotating direction of the matching cylinder, the first end is located at the rear side of the second end.

7. A cleaning device for a medication canister as defined in claim 1, characterized in that: The base is provided with a first rotating cylinder and a second rotating cylinder, both of which are arranged in the vertical direction and can rotate around their own axes; the first rotating cylinder is located above the second rotating cylinder and is in rotating cooperation with the second rotating cylinder; both the clamping part and the cleaning part are provided with multiple; multiple clamping parts are uniformly distributed around the vertical direction on the first rotating cylinder; multiple cleaning parts are uniformly distributed around the vertical direction on the second rotating cylinder.

8. A cleaning device for a medicament delivery pen according to claim 7, characterized in that: The clamping part includes a main frame and two clamping jaws, the main frame is arranged in the radial direction of the first rotating cylinder and is rotatably mounted on the first rotating cylinder around its own axis, and the two clamping jaws are mounted on the main frame and can rotate with the main frame; the clamping jaw is arranged one by one with the cleaning part, and the clamping jaw is used for clamping the dispensing jar.

9. A cleaning device for a medicament delivery pen according to claim 8, characterized in that: It also includes a conveying part; the conveying part includes a feeding disc, a mounting plate and a discharging disc; the feeding disc, the mounting plate and the discharging disc are sequentially arranged on the base along the first direction, which is a horizontal direction; the center axes of the feeding disc and the discharging disc are arranged in the vertical direction and can rotate around their own axes; a plurality of first clamping holes are formed in the circumferential direction of the feeding disc; a plurality of second clamping holes are formed in the circumferential direction of the discharging disc; the dispensing jar can abut against the first clamping hole or the second clamping hole; the mounting plate is sequentially provided with a first pushing surface, a second pushing surface and a third pushing surface in the rotating direction of the first rotating cylinder; the clamping jaw is provided with a rotating part, and the rotation of the clamping jaw along with the first rotating cylinder can make the rotating part move along the first pushing surface, the second pushing surface and the third pushing surface; the clamping jaw has a clamping state and an open state, when in the clamping state, the clamping jaw can clamp the dispensing jar; when in the open state, the clamping jaw can be separated from the dispensing jar, and when the rotating part is at the first pushing surface and the third pushing surface, the clamping jaw is in the clamping state, and when the rotating part is at the second pushing surface, the clamping jaw is in the open state.

10. A cleaning device for a medicament delivery pen according to claim 9, characterized in that: The clamping jaw includes two clamping arms, which are sequentially arranged around the vertical direction on the main frame and are connected by a third elastic piece; the clamping arm is rotatably installed on the main frame through a rotating shaft, which is arranged in the vertical direction and is fixedly connected with the clamping arm; the clamping arm is fixedly connected with a synchronous plate, which is perpendicular to the clamping arm, and the synchronous plates of the two clamping arms are sequentially arranged around the vertical direction and abut against each other in the initial state; the rotating part includes a swing arm and a roller, the swing arm is coaxial and fixedly installed at the lower end of one of the rotating shafts, and the roller is fixedly connected with the swing arm; the rotation of the clamping jaw along with the first rotating cylinder can make the roller move along the first pushing surface, the second pushing surface and the third pushing surface.

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