Safety protection device for elevator bucket of stirrer

By improving the design of protective and anti-collision components, the problems of raw material leakage and safety hazards in the feeding process of the mixer's lifting bucket have been solved, achieving stable and efficient raw material transportation and safety protection.

CN224255717UActive Publication Date: 2026-05-19LANGFANG RONGSHENG CONCRETE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANGFANG RONGSHENG CONCRETE
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During the process of lifting and feeding raw materials into the mixer's lifting bucket, the raw materials are prone to flow out from the bottom edge of the lifting bucket, causing waste. Aggregates are also prone to splashing out and injuring operators. Furthermore, reducing the size of the discharge outlet will result in a slow discharge speed, affecting the mixing efficiency.

Method used

The design incorporates a lifting protection component and an anti-collision component. The lifting protection component uses an electric hoist, electric push rod, and guide plate to adjust the size of the discharge port to prevent raw material leakage. The anti-collision component uses a damping rubber plate and an airbag to buffer and protect the lifting bucket, preventing damage from collisions.

Benefits of technology

It effectively prevents raw material leakage and aggregate splashing, improves feeding stability and safety, avoids damage to the lifting bucket, and maintains high mixing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The safety protection device is characterized in that a lifting frame is provided with a lifting protection assembly, a lifting bucket is slidably mounted in the lifting frame, an electric hoist is connected with the lifting bucket through a steel cable, a discharge port is formed in the bottom end of one side, close to the lifting frame, of a movable bucket, and a guide pipe is welded to one side, close to a storage port, of the bottom end of the movable bucket; the movable hopper is located in the containing opening, so that the movable hopper is prevented from being collided and damaged due to the fact that the movable hopper stretches out too long, then the movable hopper slides downwards along the discharging hopper and is close to a feeding opening of the stirring machine, and therefore the movable hopper can be conveniently discharged. The guide plate moves along the guide pipe and opens the discharge port, the size of the discharge port is adjustable, leakage caused by feeding blockage or too fast feeding is prevented, the height of the movable hopper is adjustable, the problem that an operator is injured due to the fact that gravel is splashed out due to the fact that a gap between the feeding port and the movable hopper of the stirrer is too large is prevented, feeding is more stable, and safety is higher.
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Description

Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a safety protection device for the mixer lifting hopper. Background Technology

[0002] The mixer lifting bucket is usually installed above the mixer. It is typically lifted by a double hydraulic cylinder and can move freely up and down. It is usually used for conveying raw materials, such as sand, cement, and aggregates, to the mixer's feed inlet and then feeding them in, thereby improving the efficiency of raw material conveying.

[0003] However, in the process of lifting and feeding raw materials into the mixer bucket currently on the market, the raw materials are easy to flow out from the bottom edge of the bucket, resulting in material waste. Furthermore, the aggregate is easy to splash out and injure the operators. If the size of the discharge port is reduced, the discharge speed will be slow when there is a lot of raw material, which will lead to a decrease in mixing efficiency. Utility Model Content

[0004] This utility model provides a safety protection device for the lifting bucket of a mixer, which can effectively solve the problems mentioned in the background art, such as the material easily flowing out from the bottom edge of the lifting bucket during the lifting and feeding process, resulting in material waste, and the aggregate easily splashing out and injuring the operator. If the size of the discharge port is reduced, the discharge speed will be slow when there is a lot of material, which will lead to a decrease in mixing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety protection device for a mixer lifting bucket, including a lifting frame, wherein the lifting frame is equipped with a lifting protection component, and the lifting protection component includes a lifting bucket, an electric hoist, a discharge bucket, a receiving port, a movable bucket, a discharge outlet, a first electric push rod, a guide tube, a guide plate, and a second electric push rod;

[0006] A lifting bucket is slidably installed inside the lifting frame. Electric hoists are symmetrically installed on the top of the lifting frame. The electric hoists are connected to the lifting buckets via steel cables. A discharge bucket is welded to the bottom of the lifting bucket. A receiving port is opened on one side of the discharge bucket. A movable bucket is slidably installed inside the discharge bucket. A discharge outlet is opened at the bottom of the movable bucket near the lifting frame. The bottom of the movable bucket is connected to the movable bucket via a first electric push rod. A guide tube is welded to the bottom of the movable bucket near the receiving port. A guide plate is movably installed inside the guide tube. The top of the guide plate is connected to the guide tube via a second electric push rod.

[0007] According to the above technical solution, a sliding frame is welded to one side of the lifting bucket, and the sliding frame is slidably engaged inside the lifting frame.

[0008] According to the above technical solution, the end face of the guide tube is a rectangular tube, and the guide plate and the bottom surface of the guide tube are parallel.

[0009] According to the above technical solution, the input ends of the electric hoist, the first electric push rod, and the second electric push rod are electrically connected to the output end of the external power supply, and the extended ends of the first electric push rod and the second electric push rod are connected to mounting blocks.

[0010] According to the above technical solution, anti-collision components are installed at the top and bottom of the lifting frame. The anti-collision components include an anti-collision box, a damping rubber plate, a buffer spring, an airbag, and a rubber pad.

[0011] A crash box is welded to the top of the lifting frame, and a damping rubber plate is slidably embedded in the bottom of the crash box. Buffer springs are evenly distributed between the top surface of the damping rubber plate and the top of the crash box. Airbags are symmetrically bonded to the bottom of the lifting frame, and rubber pads are bonded to the bottom surface of the airbags.

[0012] According to the above technical solution, the bottom surface of the damping rubber plate is aligned with one edge of the lifting bucket, and the two rubber pads are respectively aligned with the bottom of both ends of the lifting bucket.

[0013] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use;

[0014] 1. Equipped with a lifting and protection component, the raw materials are poured into the lifting hopper. The electric hoist pulls the lifting hopper along the lifting frame. During the lifting process, the movable hopper is pulled by the first electric push rod and placed inside the receiving port to prevent the movable hopper from extending too far and being damaged by collision. Then, the first electric push rod pushes the movable hopper to slide down along the discharge hopper and approach the feed inlet of the mixer. The second electric push rod pulls the guide plate to move along the guide tube and open the discharge outlet. The outlet size is adjustable to prevent feeding blockage or leakage caused by excessive feeding speed. The height of the movable hopper is also adjustable to prevent sand and gravel from splashing out and injuring operators due to excessive gap between the feed inlet of the mixer and the movable hopper. The feeding is more stable and the safety is higher.

[0015] 2. Equipped with anti-collision components, during the feeding process of the lifting bucket moving up and down, if the lifting bucket approaches the top of the lifting frame, the top edge of the lifting bucket will collide with the damping rubber plate. The damping rubber plate will deform and move along the anti-collision box, and the buffer spring will contract to absorb the impact and prevent the lifting bucket from being damaged by the collision. When the lifting bucket approaches the bottom of the lifting frame, the bottom of the lifting bucket will collide with the rubber pad. The air bag and the rubber pad will deform and absorb the impact, fully protecting the lifting bucket and reducing the wear and tear on the lifting bucket. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the lifting and protection component of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the guide plate of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the anti-collision component of this utility model;

[0022] Numbered in the diagram: 1. Lifting frame;

[0023] 2. Lifting and protective components; 201. Lifting bucket; 202. Electric hoist; 203. Discharge bucket; 204. Collection port; 205. Movable bucket; 206. Discharge outlet; 207. First electric push rod; 208. Guide tube; 209. Guide plate; 210. Second electric push rod;

[0024] 3. Anti-collision components; 301. Anti-collision box; 302. Damping rubber plate; 303. Buffer spring; 304. Airbag; 305. Rubber pad. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Example: Figure 1-4 As shown, this utility model provides a technical solution for a safety protection device for a mixer lifting bucket, including a lifting frame 1, the lifting frame 1 is equipped with a lifting protection component 2, the lifting protection component 2 includes a lifting bucket 201, an electric hoist 202, a discharge bucket 203, a receiving port 204, a movable bucket 205, a discharge port 206, a first electric push rod 207, a guide tube 208, a guide plate 209, and a second electric push rod 210;

[0027] A lifting bucket 201 is slidably installed inside the lifting frame 1. A sliding frame is welded to one side of the lifting bucket 201, and the sliding frame is slidably engaged inside the lifting frame 1 to facilitate lifting the lifting bucket 201. Electric hoists 202 are symmetrically installed at the top of the lifting frame 1, and the electric hoists 202 are connected to the lifting bucket 201 via steel cables. A discharge bucket 203 is welded to the bottom of the lifting bucket 201. A receiving port 204 is opened on one side of the discharge bucket 203. A movable bucket 205 is slidably installed inside the discharge bucket 203. A discharge outlet 206 is opened at the bottom of the movable bucket 205 near the lifting frame 1. The bottom of the movable bucket 205 is connected to the first electric push rod 207. A guide tube 208 is welded to one side near the storage opening 204. A guide plate 209 is movably installed inside the guide tube 208. The end face of the guide tube 208 is a rectangular tube. The bottom surface of the guide plate 209 is parallel to the bottom surface of the guide tube 208, which facilitates the sliding of the guide plate 209 along the guide tube 208. The top of the guide plate 209 is connected to the guide tube 208 through a second electric push rod 210. The input ends of the electric hoist 202, the first electric push rod 207, and the second electric push rod 210 are electrically connected to the output end of the external power supply, respectively. The extended ends of the first electric push rod 207 and the second electric push rod 210 are connected to mounting blocks to ensure the normal operation of the electric hoist 202, the first electric push rod 207, and the second electric push rod 210.

[0028] The top and bottom of the lifting frame 1 are equipped with anti-collision components 3, which include anti-collision box 301, damping rubber plate 302, buffer spring 303, airbag 304 and rubber pad 305.

[0029] A crash box 301 is welded to the top of the lifting frame 1. A damping rubber plate 302 is slidably embedded in the bottom of the crash box 301. Buffer springs 303 are evenly distributed between the top surface of the damping rubber plate 302 and the top of the crash box 301. Airbags 304 are symmetrically bonded to the bottom of the lifting frame 1. Rubber pads 305 are bonded to the bottom surface of the airbags 304. The bottom surface of the damping rubber plate 302 is aligned with one edge of the lifting bucket 201. Two rubber pads 305 are aligned with the bottom of both ends of the lifting bucket 201, which facilitates the buffering of the lifting bucket 201 when it collides with the damping rubber plate 302 and the rubber pads 305.

[0030] The working principle and usage process of this utility model are as follows: Start the electric hoist 202, move the lifting bucket 201 to the bottom, pour the raw material into the lifting bucket 201, and the electric hoist 202 pulls the lifting bucket 201 along the lifting frame 1 until the discharge bucket 203 approaches the feed inlet of the mixer. During the lifting process, the movable bucket 205 is pulled by the first electric push rod 207 and placed inside the receiving port 204 to prevent the movable bucket 205 from extending too far and being damaged by collision. Then, the first electric push rod 207 pushes the movable bucket 205 to slide down along the discharge bucket 203 and approach the feed inlet of the mixer. The second electric push rod 210 pulls the guide plate 209 to move along the guide tube 208 and open the discharge outlet 206. The size of the outlet is adjustable to prevent feeding blockage or leakage caused by feeding too fast. The height of the movable bucket 205 is also adjustable to prevent sand and gravel from splashing out and injuring the operator due to excessive gap between the feed inlet of the mixer and the movable bucket 205. The feeding is more stable and the safety is higher.

[0031] During the up-and-down feeding process of the lifting bucket 201, if the lifting bucket 201 approaches the top of the lifting frame 1, the top edge of the lifting bucket 201 will collide with the damping rubber plate 302. The damping rubber plate 302 will deform and move along the anti-collision box 301, and the buffer spring 303 will contract to absorb the impact and prevent the lifting bucket 201 from being damaged by the collision. If the lifting bucket 201 approaches the bottom of the lifting frame 1, the bottom of the lifting bucket 201 will collide with the rubber pad 305. The air bag 304 and the rubber pad 305 will deform and absorb the impact, thus fully protecting the lifting bucket 201 and reducing the wear and tear on the lifting bucket 201.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Safety guard for a blender lifting hopper, comprising a lifting frame (1), characterised in that: The lifting frame (1) is equipped with a lifting protection assembly (2), which includes a lifting bucket (201), an electric hoist (202), a discharge bucket (203), a receiving port (204), a movable bucket (205), a discharge port (206), a first electric push rod (207), a guide tube (208), a guide plate (209), and a second electric push rod (210). The lifting frame (1) has a lifting bucket (201) slidably installed inside. Electric hoists (202) are symmetrically installed at the top of the lifting frame (1). The electric hoists (202) are connected to the lifting buckets (201) via steel cables. A discharge bucket (203) is welded to the bottom of the lifting bucket (201). A receiving opening (204) is provided on one side of the discharge bucket (203). A movable bucket (205) is slidably installed inside the discharge bucket (203). An outlet (206) is provided at the bottom end near the lifting frame (1). The bottom end of the movable bucket (205) is connected to the movable bucket (205) through a first electric push rod (207). A guide tube (208) is welded to the bottom end of the movable bucket (205) near the receiving port (204). A guide plate (209) is movably installed inside the guide tube (208). The top end of the guide plate (209) is connected to the guide tube (208) through a second electric push rod (210).

2. The blender lift bucket safety shield of claim 1, wherein, A sliding frame is welded to one side of the lifting bucket (201), and the sliding frame is slidably engaged inside the lifting frame (1).

3. The blender lift basket safety shield of claim 1, wherein, The end face of the guide tube (208) is a rectangular tube, and the bottom surface of the guide plate (209) is parallel to that of the guide tube (208).

4. The blender lift basket safety shield of claim 1, wherein, The input ends of the electric hoist (202), the first electric push rod (207), and the second electric push rod (210) are electrically connected to the output end of the external power supply, and the extended ends of the first electric push rod (207) and the second electric push rod (210) are connected to mounting blocks.

5. The blender lift basket safety shield of claim 1, wherein, The lifting frame (1) is equipped with anti-collision components (3) at its top and bottom. The anti-collision components (3) include an anti-collision box (301), a damping rubber plate (302), a buffer spring (303), an airbag (304), and a rubber pad (305). The top of the lifting frame (1) is welded with a crash box (301), and a damping rubber plate (302) is slidably embedded in the bottom of the crash box (301). Buffer springs (303) are evenly distributed between the top surface of the damping rubber plate (302) and the top of the crash box (301). Airbags (304) are symmetrically bonded to the bottom of the lifting frame (1), and rubber pads (305) are bonded to the bottom surface of the airbags (304).

6. The blender lift bucket safety shield of claim 5, wherein, The bottom surface of the damping rubber plate (302) is aligned with one edge of the lifting bucket (201), and the two rubber pads (305) are aligned with the bottom of both ends of the lifting bucket (201).