Safety device for an elevator

By adding a protective shell and hydraulic components to the hoist, the safety hazards caused by the open design of the transmission track were resolved, and the stable operation and safety protection of the hoist were achieved.

CN224529720UActive Publication Date: 2026-07-21QINGDAO DONGPING JUNCHUAN IND AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO DONGPING JUNCHUAN IND AUTOMATION EQUIP CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing hoist has an open design for the drive track during the loading process, which makes it easy for workers to come into contact with the running components, causing accidents.

Method used

The rotating shaft, fixed plate, and transmission track are encased in a protective shell to prevent external personnel from contacting them, and the stability and adaptability of the device are improved through hydraulic components and support blocks.

Benefits of technology

It effectively isolates external personnel from contact, reduces accidents, improves the practicality and safety of the device, and increases transmission efficiency and applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of safety protection, specifically is a hoist's safety device, including motor, motor side wall fixedly connected fixed plate, motor side wall output fixedly connected rotating shaft and rotating shaft penetrates fixed plate, the rotating shaft of fixed plate side wall rotation is connected, the rotating shaft side wall installs fixed plate, two rotating shaft outer wall is equipped with transmission caterpillar band, the fixed plate outside fixedly connected protective housing, the protective housing is wrapped rotating shaft, fixed plate, transmission caterpillar band, the motor is located in the outer wall of protective housing, the top of protective housing is equipped with the inlet chute, the bottom of protective housing is equipped with the discharge chute, through above -mentioned structure, adopt external protection subassembly, make the device stable operation at the same time, insulate the contact of external personnel, avoid the device internal component damage at the same time, reduce the accidental event that external personnel contact causes, increase the practicality and protective property of device.
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Description

Technical Field

[0001] This utility model belongs to the field of safety protection technology, specifically a safety protection device for a hoist. Background Technology

[0002] In the process of grain processing, it is necessary to transport the grain to designated equipment for processing. This requires the use of lifting equipment, also known as elevators. Lifting equipment is a type of machine that transports materials at a lower position to a higher position. For example, in the grinding of rice and wheat, lifting equipment is needed to lift the rice into the feed hopper of a rice milling machine for milling. Lifting equipment is mainly suitable for the continuous lifting of powdery, granular, and small lump materials. It can be widely used in feed mills, flour mills, rice mills, oil mills, starch factories, and grain depots of various sizes for the continuous lifting of dry powdery, granular, and small lump materials.

[0003] In the current process of loading materials, the transmission tracks of the hoist are mostly open-designed. During use, workers may come into contact with the moving components due to various unexpected situations, which may cause workers to be caught in the equipment and cause accidents.

[0004] Therefore, this utility model provides a safety protection device for a hoist. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The safety protection device for a hoist of this utility model includes a motor, a fixed plate fixed to the side wall of the motor, a rotating shaft fixed to the output end of the side wall of the motor and the rotating shaft passing through the fixed plate, the rotating shaft rotatably connected to the side wall of the fixed plate, the fixed plate installed on the side wall of the rotating shaft, transmission tracks sleeved on the outer walls of the two rotating shafts, a protective shell fixed to the outside of the fixed plate, the protective shell covering the rotating shaft, the fixed plate, and the transmission tracks, the motor located on the outer wall of the protective shell, an inlet groove opened at the top of the protective shell, and an outlet groove opened at the bottom of the protective shell. Through the above structure, using external protection components, the device can operate stably while isolating external personnel from contact, avoiding damage to the internal components of the device, reducing accidents caused by external personnel contact, and increasing the practicality and protection of the device.

[0007] Preferably, support rods are rotatably connected to the bottom of the two side walls of the protective shell, and a base is fixedly connected to the bottom of the support rods. A first fixing block is rotatably connected to the middle of the two side walls of the protective shell. Hydraulic components are fixedly connected to the top two sides of the base. A push rod is fixedly connected to the bottom output end of the hydraulic components. The top of the push rod is fixedly connected to the bottom of the first fixing block. Through the above structure, the device can be quickly adjusted in lifting height, allowing it to be quickly adjusted according to the required requirements. This makes the device adaptable to various application conditions, increasing its practicality and applicability.

[0008] Preferably, a support block is fixed between the two fixed plates. The support block is located inside the transmission track. A second fixed block is fixed to the outer wall of the transmission track. Multiple second fixed blocks are provided. Through the above structure, the support component cooperates with the pushing component to enable stable material lifting inside the device, reduce the problem of low material transmission efficiency, and increase the practicality of the device.

[0009] Preferably, the bottom of the discharge trough is fixedly connected to the discharge port, and the top of the discharge port is fixedly connected to the baffle. The top of the baffle is in contact with the transmission track. Through the above structure, the use of the shielding component reduces the problem of materials accidentally falling into the device, while enabling the device to discharge materials quickly and increasing the practicality of the device.

[0010] Preferably, the top of the feeding trough is fixedly connected to the feeding port. Through the above structure and the large-diameter design, the device can pour in a large amount of material, thus avoiding the problem of material spillage when the material is poured into the device.

[0011] Preferably, the bottom of the base is fixed with casters. The casters are located at the four corners of the bottom of the base and have a fixed structure inside. Through the above structure, a moving component is added, which enables the device to move quickly when it needs to be moved, reducing the labor cost of handling the device. At the same time, the device can be quickly fixed after it is moved to the required position.

[0012] Preferably, the protective shell surface is coated with a wear-resistant and anti-slip coating. Through the above structure and the use of a wear-resistant and anti-slip coating, the wear of components during daily use of the device is reduced, the service life of the device is increased, and the durability of the device is increased.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The safety protection device for a hoist described in this utility model, by adopting external protection components, enables the device to operate stably while isolating it from external personnel, preventing damage to internal components and reducing accidents caused by external personnel contact, thereby increasing the practicality and protection of the device.

[0015] 2. The safety protection device for the hoist described in this utility model allows for rapid adjustment of the lifting height, enabling the device to be quickly adjusted according to requirements, thus adapting to various application conditions and increasing its practicality and applicability. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the protective shell structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second fixing block in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixing plate in this utility model;

[0021] Figure 5 This is a schematic diagram of the discharge port structure in this utility model.

[0022] In the diagram: 1. Motor; 11. Rotating shaft; 12. Fixing plate; 13. Transmission track; 14. Feed chute; 15. Protective shell; 16. Discharge chute; 2. Support rod; 21. Base; 22. First fixing block; 23. Push rod; 24. Hydraulic assembly; 3. Support block; 31. Second fixing block; 4. Discharge port; 41. Baffle; 5. Feed port; 6. Caster wheel. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown, a safety protection device for a hoist according to an embodiment of this utility model includes a motor 1, a fixing plate 12 fixedly connected to the side wall of the motor 1, a rotating shaft 11 fixedly connected to the output end of the side wall of the motor 1 and the rotating shaft 11 passing through the fixing plate 12, the side wall of the fixing plate 12 rotatably connected to the rotating shaft 11, the fixing plate 12 installed on the side wall of the rotating shaft 11, transmission tracks 13 sleeved on the outer walls of the two rotating shafts 11, a protective shell 15 fixedly connected to the outside of the fixing plate 12, the protective shell 15 enclosing the rotating shaft 11, the fixing plate 12, and the transmission tracks 13, the motor 1 being located on the outer wall of the protective shell 15, a feed chute 14 opening at the top of the protective shell 15, and a discharge chute 16 opening at the bottom of the protective shell 15. During operation, the material to be hoisted is poured into the interior of the protective shell 15 through the feed chute 14, and then... The motor 1 is started, and the rotating shaft 11 is driven to rotate through the output end of the side wall of the motor 1. The rotating shaft 11 drives the transmission track 13 to rotate. The transmission track 13, in conjunction with another rotating shaft 11, completes the lifting of the material. Once the material is moved to the top of the transmission track 13, it is discharged through the discharge chute 16 opened in the protective shell 15. The protective shell 15 protects the internal operating components of the device and prevents external personnel from accessing the internal operating components, reducing the accident rate of the device. Through the above structure, the external protective components ensure stable operation of the device while isolating external personnel from contact, preventing damage to the internal components of the device and reducing accidents caused by external personnel contact, thereby increasing the practicality and protection of the device.

[0026] like Figures 1 to 5 As shown, support rods 2 are rotatably connected to the bottom of both side walls of the protective shell 15. The bottom of the support rods 2 is fixedly connected to the base 21. A first fixing block 22 is rotatably connected to the middle of both side walls of the protective shell 15. Hydraulic components 24 are fixedly connected to both sides of the top of the base 21. A push rod 23 is fixedly connected to the bottom output end of the hydraulic components 24. The top of the push rod 23 is fixedly connected to the bottom of the first fixing block 22. During operation, when the lifting height of the device needs to be adjusted, the hydraulic components 24 are activated. The top output end of the hydraulic components 24 drives the push rod 23 to rise and fall, thus lifting the push rod 23. Push rod 23 drives the first fixing block 22 to lift, which in turn drives the protective shell 15 to lift. With the support rod 2 in place, the protective shell 15 is lifted on one side in conjunction with the rotating structure. When push rod 23 is lowered to the bottom, the protective shell 15 is laid flat through component linkage, allowing the device to transport objects horizontally. Through the above structure, the device can be quickly adjusted in lifting height, allowing it to be quickly adjusted according to requirements, making it adaptable to various application conditions and increasing its practicality and applicability.

[0027] like Figures 1 to 5As shown, a support block 3 is fixed between two fixed plates 12. The support block 3 is located inside the transmission track 13. A second fixed block 31 is fixed to the outer wall of the transmission track 13. There are multiple second fixed blocks 31. During operation, the support block 3 supports the transmission track 13 inside the device, avoiding insufficient support force caused by the device transporting heavy materials. At the same time, the cooperation of multiple second fixed blocks 31 increases the contact area of ​​the material in the device and increases the transmission efficiency of the device. Through the above structure, the support component and the push component are used to enable stable material lifting inside the device, reducing the problem of low material transmission efficiency and increasing the practicality of the device.

[0028] like Figures 1 to 5 As shown, the bottom of the discharge trough 16 is fixedly connected to the discharge port 4, and the top of the discharge port 4 is fixedly connected to the baffle 41. The top of the baffle 41 is in contact with the transmission track 13. During operation, the discharge port 4, in conjunction with the baffle 41, enables the device to discharge materials stably and quickly after the materials are lifted. The baffle 41 prevents materials from accidentally flowing out of the bottom of the protective shell 15. Through the above structure, the use of the baffle component reduces the problem of materials accidentally falling into the device, while enabling the device to discharge materials quickly, increasing the practicality of the device.

[0029] like Figures 1 to 5 As shown, the top of the feed trough 14 is fixedly connected to the feed inlet 5. During operation, the device can pour in a large amount of material through the feed inlet 5. At the same time, the large-diameter design prevents the material from spilling when it is poured into the device. Through the above structure and the large-diameter design, the device can pour in a large amount of material, preventing the material from spilling when it is poured into the device.

[0030] like Figures 1 to 5 As shown, the bottom of the base 21 is fixed with casters 6. The casters 6 are located at the four corners of the bottom of the base 21 and have a fixing structure inside. When working, pushing the base 21 causes the casters 6 to slide, allowing the device to move quickly. After moving to the desired position, the fixing components inside the casters 6 are activated to fix the device in the designated position. Through the above structure, the addition of the moving component allows the device to move quickly when it needs to be moved, reducing the labor cost of handling the device, and allowing the device to be quickly fixed after moving to the desired position.

[0031] like Figures 1 to 5 As shown, the protective shell 15 is coated with a wear-resistant and anti-slip coating. During operation, the wear-resistant and anti-slip coating reduces component wear during daily use of the device, increasing the device's service life. Through the above structure, the use of a wear-resistant and anti-slip coating reduces component wear during daily use of the device, increases the device's service life, and increases the device's durability.

[0032] During operation, the material to be lifted is poured into the protective shell 15 through the feed chute 14. Then, the motor 1 is started, and the output end of the side wall of the motor 1 drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the transmission track 13 to rotate. The transmission track 13, in conjunction with another rotating shaft 11, completes the lifting of the material. Once the material moves to the top of the transmission track 13, it is discharged through the discharge chute 16 opened in the protective shell 15. The protective shell 15 protects the internal operating components of the device and prevents external personnel from accessing the internal operating components, reducing the accident rate. When it is necessary to adjust the lifting height of the device, the hydraulic component 24 is activated. The output end of the top of the hydraulic component 24 drives the push rod 23 to lift and lower. Lifting the push rod 23 drives the first fixing block 22 to lift, which in turn drives the protective shell 15 to lift. With the support rod 2 fixed, the protective shell 15, in conjunction with the rotating structure, lifts one side. When the push rod 23 is lowered to the bottom... After the components are linked, the protective shell 15 is laid flat, allowing the device to transport objects horizontally. The support block 3 supports the transmission track 13 inside the device, preventing insufficient support when transporting heavy materials. At the same time, the cooperation of multiple second fixing blocks 31 increases the contact area of ​​the material and improves the transmission efficiency. The discharge port 4, in conjunction with the baffle 41, allows for stable and rapid material discharge after the material is lifted. The baffle 41 prevents the material from accidentally flowing out of the bottom of the protective shell 15. The inlet port 5 allows for the pouring of large quantities of material. The large-diameter design prevents material from spilling when pouring into the device. Pushing the base 21 causes the universal wheels 6 to slide, enabling the device to move quickly. Once the device reaches the desired position, the fixing components inside the universal wheels 6 are activated to fix the device in the designated position. The wear-resistant and anti-slip coating reduces component wear during daily use and increases the device's service life.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for a hoist, comprising a motor (1); characterized in that: The motor (1) is fixed to a fixing plate (12) on its side wall; the output end of the motor (1) is fixed to a rotating shaft (11) and the rotating shaft (11) passes through the fixing plate (12); the fixing plate (12) is rotatably connected to the rotating shaft (11) on its side wall; the fixing plate (12) is installed on the side wall of the rotating shaft (11); the two rotating shafts (11) are fitted with transmission tracks (13) on their outer walls; a protective shell (15) is fixed to the outside of the fixing plate (12); the protective shell (15) encloses the rotating shaft (11), the fixing plate (12), and the transmission tracks (13); the motor (1) is located on the outer wall of the protective shell (15); a feed groove (14) is opened at the top of the protective shell (15); a discharge groove (16) is opened at the bottom of the protective shell (15).

2. The safety protection device for a hoist according to claim 1, characterized in that: The protective shell (15) has a support rod (2) rotatably connected to the bottom of its two side walls; the support rod (2) is fixed to the bottom of the base (21); the protective shell (15) has a first fixing block (22) rotatably connected to the middle of its two side walls; the base (21) has a hydraulic assembly (24) fixed to its top two sides; the hydraulic assembly (24) has a push rod (23) fixed to its bottom output end; and the push rod (23) has its top fixed to the bottom of the first fixing block (22).

3. The safety protection device for a hoist according to claim 1, characterized in that: A support block (3) is fixed between the two fixed plates (12); the support block (3) is located inside the transmission track (13); a second fixed block (31) is fixed to the outer wall of the transmission track (13); the second fixed block (31) is provided in multiple units.

4. A safety protection device for a hoist according to claim 1, characterized in that: The bottom of the discharge trough (16) is fixedly connected to the discharge port (4); the top of the discharge port (4) is fixedly connected to the baffle (41); the top of the baffle (41) is in contact with the transmission track (13).

5. A safety protection device for a hoist according to claim 4, characterized in that: The top of the feed trough (14) is fixedly connected to the feed inlet (5).

6. A safety protection device for a hoist according to claim 2, characterized in that: The bottom of the base (21) is fixedly connected to a caster wheel (6); the caster wheel (6) is located at the four corners of the bottom of the base (21) and has a fixed structure inside.

7. A safety protection device for a hoist according to claim 1, characterized in that: The protective shell (15) is coated with a wear-resistant and anti-slip coating.