Dustproof multi-stage crushing device

By installing a sealing plate and a transmission push rod system in the feed hopper of the multi-stage crushing device, the problem of spirulina particles flying out is solved, achieving a safe crushing process and protecting the health of operators.

CN224072191UActive Publication Date: 2026-04-03LIJIANG CHENGHAIHU NATURAL SPIRULINA PRODUCTIONBASE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When a multi-stage crusher crushes spirulina, the spirulina particles can fly out due to the high-speed rotation of the toothed disc, which can affect the health of the operators.

Method used

A dustproof multi-stage pulverizing device was designed. By setting a sealing horizontal plate and a transmission push rod system in the feed hopper, the lifting frame and transmission push rod are driven by the pull rod to realize the lateral movement of the sealing horizontal plate, close the feed hopper, and prevent spirulina particles from flying out.

Benefits of technology

It effectively prevents spirulina particles from flying out of the feed hopper, protecting the health of operators and maintaining a clean working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dustproof multi-stage crushing device which comprises a multi-stage crushing part and a feeding part, the feeding part is arranged at the top of the multi-stage crushing part and communicated with a feeding port of the multi-stage crushing part, the feeding part is provided with a feeding hopper arranged at the top of the multi-stage crushing part, and a sealing transverse plate is transversely arranged in the feeding hopper in a sliding mode. A transmission push rod is rotationally connected to the side face of the sealing transverse plate, a lifting frame is rotationally arranged at the other end of the transmission push rod, a pull rod is rotationally arranged in the lifting frame, and the pull rod vertically moves to drive the lifting frame to move up and down so as to drive the transmission push rod to pull the sealing transverse plate to move transversely. By arranging the feeding part, after spirulina is poured into the feeding hopper and the lifting frame is driven to move through the movement of the pull rod, the transmission push rod rotates and transversely pulls the sealing transverse plate to transversely move in the feeding hopper, so that the feeding hopper is closed, and spirulina particles are prevented from flying out.
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Description

Technical Field

[0001] This utility model relates to the technical field of pulverizing devices, specifically a dustproof multi-stage pulverizing device. Background Technology

[0002] Spirulina tablets are a health supplement primarily used to supplement nutrition and assist in the treatment of certain symptoms. The main ingredient is spirulina powder, which has the effects of invigorating qi and nourishing blood, resolving phlegm and clearing turbidity. During the production process, the cultured spirulina needs to be dried to reduce its moisture content to a suitable range. After drying, a multi-stage pulverizing device is used to pulverize the spirulina into powder for subsequent processing. The universal multi-stage pulverizing unit is a type of multi-stage pulverizing device that also features high efficiency, low noise, and safe operation, and is suitable for pulverizing materials such as plastics, traditional Chinese medicine, and rubber.

[0003] When a multi-stage crushing device crushes spirulina, the spirulina is fed into the main body of the multi-stage crushing section from the top feed hopper. The spirulina is crushed into fine particles by the high-speed rotating toothed disc. Because the high-speed rotation of the toothed disc will cause the spirulina particles to fly out from the feed hopper and enter the surrounding air, affecting the health of the operators, we have proposed a dustproof multi-stage crushing device. Utility Model Content

[0004] The purpose of this invention is to provide a dustproof multi-stage crushing device to solve the problem mentioned in the background art where, when crushing spirulina, the spirulina is fed into the main body of the multi-stage crushing section from the top feed hopper, and the spirulina is crushed into fine particles by the high-speed rotating toothed disc. Because the high-speed rotation of the toothed disc will cause the spirulina particles to fly out of the feed hopper and into the air, affecting the health of the operators.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof multi-stage pulverizing device, comprising a multi-stage pulverizing section and a feeding section:

[0006] The feeding section is located at the top of the multi-stage crushing section and is connected to the feed inlet of the multi-stage crushing section. The feeding section has a feeding hopper located at the top of the multi-stage crushing section. A sealing plate is slidably arranged inside the feeding hopper. A transmission push rod is rotatably connected to the side of the sealing plate. A lifting frame is rotatably arranged at the other end of the transmission push rod. A pull rod is rotatably arranged inside the lifting frame. The vertical movement of the pull rod drives the lifting frame to move up and down, thereby driving the transmission push rod to pull the sealing plate to move laterally.

[0007] By adopting the above technical solution, after spirulina is poured into the feeding hopper, the movement of the pull rod drives the lifting frame to move, causing the transmission push rod to rotate and pull the sealing plate laterally inside the feeding hopper, thereby closing the feeding hopper and preventing spirulina particles from flying out.

[0008] Preferably, the feeding section also has a chute inside the feeding hopper, and two sealing horizontal plates are provided. The two sealing horizontal plates are embedded in the chute and are slidably connected to the feeding hopper laterally. A rubber pad is provided at the end of the two sealing horizontal plates facing the inside of the feeding hopper.

[0009] By adopting the above technical solution, the two sealing cross plates can be moved laterally inside the feed hopper.

[0010] Preferably, the feeding section also has a connecting frame disposed on the side of the sealing cross plate, the connecting frame having a rotating groove inside, and one end of the transmission push rod being embedded in the rotating groove and rotatably connected to the connecting frame.

[0011] By adopting the above technical solution, the transmission push rod can be rotated and its angle changed within the connecting frame.

[0012] Preferably, the lifting frame has a rotating groove inside, and the other end of the transmission push rod is embedded in the rotating groove and rotatably connected to the lifting frame.

[0013] By adopting the above technical solution, the lifting frame can drive the transmission push rod to rotate and drive the sealing cross plate to move when it moves up and down.

[0014] Preferably, the feeding part also has a connecting hole opened inside the lifting frame, the pull rod passes vertically through the connecting hole and is horizontally rotatably connected to the lifting frame, and a handrail is provided at the top of the pull rod.

[0015] By adopting the above technical solution, the tie rod can be rotated horizontally within the connection hole.

[0016] Preferably, the feeding part also has a support plate disposed on the side of the feeding hopper, the support plate having a limiting hole inside, and a limiting block disposed on the side of the pull rod, the limiting block being embedded in the limiting hole and vertically slidingly connected to the support plate.

[0017] By adopting the above technical solution, the limiting block can be moved up and down inside the support plate along the limiting hole.

[0018] Preferably, the feeding part also has a spring nested on the outside of the pull rod, the spring being located between the support plate and the pull rod.

[0019] By adopting the above technical solution, the spring force can be used to push the pull rod to move vertically up and down.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: By providing a feeding part, after spirulina is poured into the feeding hopper, the movement of the pull rod drives the lifting frame to move, causing the transmission push rod to rotate and laterally pull the sealing plate to move laterally inside the feeding hopper, thereby closing the feeding hopper and preventing spirulina particles from flying out; by holding the pull rod and pulling it upward, while the lifting frame rises, the transmission push rod rotates and pushes the two sealing plates to slide to both sides of the feeding hopper. Then, by rotating the pull rod, the position of the limiting block and the limiting hole is misaligned, so that the support plate can hold the pull rod, keeping the two sealing plates in an open position. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of this application;

[0023] Figure 3 This is a schematic diagram of the open cross-sectional structure of the feed section of this application;

[0024] Figure 4 This is a schematic diagram of the closed cross-sectional structure of the feed section in this application;

[0025] Figure 5 This is a schematic diagram of the connection structure between the sealing cross plate and the lifting frame in this application;

[0026] Figure 6 This is a schematic diagram of the feed hopper structure in this application;

[0027] Figure 7 This is a schematic diagram of the tie rod structure of this application.

[0028] In the diagram: 1. Multi-stage crushing section; 2. Feeding section; 201. Feed hopper; 202. Slide chute; 203. Sealing cross plate; 204. Connecting frame; 205. Transmission push rod; 206. Lifting frame; 207. Connecting hole; 208. Support plate; 209. Limiting hole; 210. Pull rod; 211. Limiting block; 212. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a dustproof multi-stage pulverizing device, comprising a multi-stage pulverizing section 1 and a feeding section 2.

[0032] The multi-stage grinding section 1 has a movable toothed disc rotating inside. The feeding section 2 is located at the top of the multi-stage grinding section 1 and is connected to the feeding port of the multi-stage grinding section 1. A feeding hopper 201 is detachably fixed at the top of the multi-stage grinding section 1. A sealing plate 203 is laterally slidably arranged inside the feeding hopper 201. A transmission push rod 205 is rotatably connected to the side of the sealing plate 203. A lifting frame 206 is rotatably arranged at the other end of the transmission push rod 205. A pull rod 210 is rotatably arranged inside the lifting frame 206. The vertical movement of the pull rod 210 drives the lifting frame 206 to move up and down, thereby driving the transmission push rod 205 to pull the sealing plate 203 laterally. After spirulina is poured into the feeding hopper 201, the movement of the pull rod 210 drives the lifting frame 206 to move, causing the transmission push rod 205 to rotate and laterally pull the sealing plate 203 laterally inside the feeding hopper 201, thereby closing the feeding hopper 201 and preventing spirulina particles from flying out.

[0033] Example 2

[0034] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a dustproof multi-stage crushing device, including a feeding section 2, a feeding hopper 201, and a sealing horizontal plate 203.

[0035] A sliding groove 202 is provided inside the feed hopper 201. Two sealing horizontal plates 203 are provided, which are embedded in the sliding groove 202 and slidably connected to the feed hopper 201. Rubber pads are fixed to the inner ends of the two sealing horizontal plates 203, allowing them to move laterally within the feed hopper 201. A connecting frame 204 is provided on the side of the sealing horizontal plate 203, and a rotating groove is provided inside the connecting frame 204. One end of the transmission push rod 205 is embedded in the rotating groove and rotatably connected to the connecting frame 204, allowing the transmission push rod 205 to move laterally within the feed hopper 201. The rod 205 rotates within the connecting frame 204 to change its angle. The lifting frame 206 has a rotating groove inside. The other end of the transmission push rod 205 is embedded in the rotating groove and rotates with the lifting frame 206. This allows the lifting frame 206 to move up and down, thereby driving the transmission push rod 205 to rotate and moving the sealing plate 203. A connecting hole 207 is provided inside the lifting frame 206. The pull rod 210 vertically passes through the connecting hole 207 and rotates horizontally with the lifting frame 206. A handrail is integrally provided on the top of the pull rod 210, allowing the pull rod 210 to rotate horizontally within the connecting hole 207.

[0036] Example 3

[0037] Please see Figure 5 , Figure 6 and Figure 7 This embodiment provides a technical solution: a dustproof multi-stage crushing device, including a feeding section 2, a lifting frame 206, and a pull rod 210.

[0038] A support plate 208 is provided on the side of the feed hopper 201. A limiting hole 209 is opened inside the support plate 208. A limiting block 211 is integrally formed on the side of the pull rod 210. The limiting block 211 is embedded in the limiting hole 209 and vertically slidably connected to the support plate 208, allowing the limiting block 211 to move up and down along the limiting hole 209 inside the support plate 208. A spring 212 is nested on the outside of the pull rod 210. The spring 212 is located between the support plate 208 and the pull rod 210. The elastic force provided by the spring 212 can push the pull rod 210 to move up and down vertically.

[0039] Working principle: First, power on the device. Then, grasp the pull rod 210 and pull it upwards. This causes the pull rod 210 to overcome the elastic force of the spring 212 and drive the lifting frame 206 to rise. The limiting block 211 will slide upwards within the limiting hole 209. As the lifting frame 206 rises, the transmission push rod 205 rotates and pushes the two sealing horizontal plates 203 to slide on both sides of the feed hopper 201. Then, rotate the pull rod 210 to displace the limiting block 211 from the limiting hole 209, so that the support plate 208 can support the pull rod 210, keeping the two sealing horizontal plates 203 in an open position. At this time, the spirulina can be poured out. After the spirulina is poured into the feed hopper 201, the pull rod 210 is rotated so that the position of the limiting block 211 is aligned with the limiting hole 209 after the rotation of the pull rod 210. This allows the limiting block 211 to slide down within the limiting hole 209. Then, the pull rod 210 is released, and under the action of the spring 212, the pull rod 210 is pushed down. The movement of the pull rod 210 causes the lifting frame 206 to move, which in turn causes the transmission push rod 205 to rotate and laterally pull the sealing plate 203 to move laterally inside the feed hopper 201, thereby closing the feed hopper 201 and preventing the spirulina particles from flying out. The working principle of the multi-stage crushing unit 1 is mainly based on the high-speed relative motion between the movable toothed disc and the fixed toothed disc, so that the material to be crushed is crushed through the combined action of tooth impact, friction, and collision between materials. After the material enters the crushing chamber, it is crushed by the impact, shearing, friction and mutual collision of the teeth between the movable toothed disc and the fixed toothed disc. Finally, it is screened through a screen to become the required powder.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dustproof multi-stage pulverizing device, characterized in that, Include: Multi-stage crushing part; The feeding part is arranged at the top of the multi-stage crushing part and communicates with the feeding port of the multi-stage crushing part, and the feeding part has a feeding hopper arranged at the top of the multi-stage crushing part; The inside of the feeding hopper is slidably provided with a sealing transverse plate, the side of the sealing transverse plate is rotatably connected with a transmission push rod, the other end of the transmission push rod is rotatably provided with a lifting frame, the inside of the lifting frame is rotatably provided with a pull rod, and the vertical movement of the pull rod drives the lifting frame to move up and down, so as to drive the transmission push rod to pull the sealing transverse plate to move transversely.

2. The dustproof multi-stage pulverizing device according to claim 1, characterized in that: The feeding part also has a chute opened in the inside of the feeding hopper, the sealing transverse plate is provided with two, the two sealing transverse plates are embedded in the chute and are transversely slidably connected with the feeding hopper, and the end of the two sealing transverse plates towards the inside of the feeding hopper is provided with a rubber pad.

3. The dustproof multi-stage pulverizing device according to claim 2, characterized in that: The feeding part also has a connecting frame arranged at the side of the sealing transverse plate, the inside of the connecting frame is provided with a rotating groove, and one end of the transmission push rod is embedded in the rotating groove and is rotatably connected with the connecting frame.

4. The dustproof multi-stage pulverizing device according to claim 3, characterized in that: The inside of the lifting frame is provided with a rotating groove, and the other end of the transmission push rod is embedded in the rotating groove and is rotatably connected with the lifting frame.

5. The dustproof multi-stage pulverizing device according to claim 4, characterized in that: The feeding part also has a connecting hole opened in the inside of the lifting frame, the pull rod vertically penetrates through the connecting hole and is horizontally rotatably connected with the lifting frame, and the top of the pull rod is provided with a handrail.

6. The dust-proof multi-stage pulverizing device according to claim 1, characterized in that: The feeding part also has a supporting plate arranged at the side of the feeding hopper, the inside of the supporting plate is provided with a limiting hole, the side of the pull rod is provided with a limiting block, and the limiting block is embedded in the limiting hole and is vertically slidably connected with the supporting plate.

7. The dustproof multi-stage pulverizing device according to claim 6, characterized in that: The feeding part also has a spring nested outside the pull rod, and the spring is located between the supporting plate and the pull rod.