Safety protection device at tail end of chain conveyor
By installing multiple buffer devices and auxiliary structures at the end of the chain conveyor, the problems of short service life and safety hazards of traditional devices are solved, achieving higher safety and stability.
Patent Information
- Application Number
- CN202423237376.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional chain conveyor end safety protection devices consist of only one buffer structure, resulting in a short service life and easy detachment, posing a safety hazard.
It employs multiple buffer devices and auxiliary structures, including buffer pads, buffer springs, guide columns, load-bearing hinges, and load-bearing rotating shafts, to form a multi-layered buffer system, and uses anti-slip blocks to hold the counterweights to prevent them from falling off.
It effectively extends the service life of the buffer structure, prevents the counterweight from falling in an uncontrollable direction, improves safety and stability, and reduces noise.
Smart Images
Figure CN223619538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of safety protection devices for the end of chain conveyors, and in particular to a safety protection device for the end of chain conveyors. Background Technology
[0002] Chain conveyors are conveyors that use chains for traction and load-bearing, or use slats, metal mesh belts, and rollers mounted on the chain to carry materials. Depending on the load-bearing surface mounted on the chain, they can be divided into: chain type / chain plate type / chain mesh type / slat type / chain bucket type / pallet type / trolley type. In addition, they are often combined with other conveyors and lifting devices to form various functions. Lifting chain conveyors have counterweights placed at the end to ensure the tension of the chain. When the counterweights fall off, it is very dangerous and requires the use of end safety protection devices to ensure working safety.
[0003] Traditional chain conveyor end safety protection devices only have one buffer structure. When the counterweight falls off, this buffer structure is subjected to the full impact stress, resulting in a very short service life. Traditional chain conveyor end safety protection devices do not have auxiliary structures. When the counterweight hits the buffer structure, it is easy to fall off the chain conveyor body and fall in an uncontrollable direction, causing injury to nearby personnel. Utility Model Content
[0004] The technical problem this invention aims to solve is that traditional chain conveyor end safety protection devices only have one buffer structure. When the counterweight falls off, this buffer structure is subjected to the full impact stress, resulting in a very short service life. Traditional chain conveyor end safety protection devices do not have auxiliary structures. When the counterweight hits the buffer structure, it is easy to fall off the chain conveyor body and fall in an uncontrollable direction, causing injury to nearby personnel.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is a safety protection device for the end of a chain conveyor, including a workbench, a chain conveyor body, and a counterweight. The chain conveyor body is installed on the upper wall of the workbench, and the counterweight is connected to the end of the chain conveyor body. Four guide columns are installed on the upper wall of the workbench, and two load-bearing hinge seats are installed on the upper wall of the workbench. A first protective structure is fitted onto the outer wall of the four guide columns, and a second protective structure is installed inside the two load-bearing hinge seats. A limit structure is installed on the upper wall of the workbench. The first protective structure includes: four telescopic sleeves, a first load-bearing plate, and a first buffer pad. The four telescopic sleeves are respectively fitted onto the outer wall of the four guide columns, the first load-bearing plate is installed on the upper wall of the four telescopic sleeves, and the first buffer pad is installed on the upper wall of the first load-bearing plate.
[0006] As a further embodiment of this utility model: the second protective structure includes: two load-bearing rotating shafts, two fixed sleeves, two auxiliary pressure plates, two auxiliary connecting frames, and two anti-slip blocks; the two load-bearing rotating shafts are respectively installed in two load-bearing hinge seats, the two fixed sleeves are respectively fitted onto the outer wall surface of the two load-bearing rotating shafts, the two auxiliary pressure plates are installed on the outer wall surface of the two fixed sleeves, the two auxiliary connecting frames are respectively installed on the outer wall surface of the two fixed sleeves and are perpendicularly connected to the two auxiliary pressure plates, and the two anti-slip blocks are respectively installed on the inner wall surface of the two auxiliary connecting frames.
[0007] As a further embodiment of this utility model: the limiting structure includes: two support plates, two limiting shafts and two buffer bushings; the two support plates are respectively installed on the upper wall of the worktable, the two limiting shafts are respectively connected to the upper end face of the two support plates, and the two buffer bushings are respectively fitted onto the outer wall of the two limiting shafts.
[0008] As a further embodiment of this utility model: a base buffer pad is installed on the upper wall of the workbench.
[0009] As a further embodiment of this utility model: buffer springs are respectively fitted on the outer walls of the four guide columns and connected to four telescopic sleeves.
[0010] As a further embodiment of this utility model: auxiliary buffer pads are respectively installed on the upper wall surfaces of the two auxiliary pressure plates.
[0011] As a further embodiment of this utility model: four fixed ribs are connected between the two support plates and the worktable.
[0012] The present invention adopts the above technical solution and has the following advantages compared with the prior art:
[0013] The first buffer pad, four buffer springs, and the base buffer pad work together to form a multi-layer buffer device to reduce the impact force of the counterweight. This solves the problem that the traditional chain conveyor end safety protection device only has one buffer structure. When the counterweight falls off, this buffer structure is subjected to all the impact stress, resulting in a very short service life for the buffer structure.
[0014] Two fixed sleeves drive two auxiliary connecting frames to rotate inward, and the two auxiliary connecting frames drive two anti-slip blocks to move inward. When the counterweight block drives the first load-bearing plate to a certain extent, the two anti-slip blocks will clamp the counterweight block. This solves the problem that traditional chain conveyor end safety protection devices do not have auxiliary structures, and when the counterweight block hits the buffer structure, it is easy to fall off the chain conveyor body and fall in an uncontrollable direction, causing injury to nearby personnel. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of a safety protection device at the end of a chain conveyor in an embodiment of this utility model;
[0016] Figure 2 This is a standby schematic diagram of a safety protection device at the end of a chain conveyor according to an embodiment of the present invention;
[0017] Figure 3 This is a schematic diagram of the first protective structure of a safety protection device at the end of a chain conveyor in an embodiment of the present invention;
[0018] Figure 4 This is a schematic diagram of the second protective structure of a safety protection device at the end of a chain conveyor in an embodiment of the present invention.
[0019] In the diagram: 1. Workbench; 2. Chain conveyor body; 3. Counterweight; 4. Guide column; 5. Load-bearing hinge; 6. Telescopic sleeve; 7. First load-bearing plate; 8. First buffer pad; 9. Load-bearing rotating shaft; 10. Fixed sleeve; 11. Auxiliary pressure plate; 12. Auxiliary connecting frame; 13. Anti-slip block; 14. Support plate; 15. Limiting shaft; 16. Buffer bushing; 17. Base buffer pad; 18. Buffer spring; 19. Auxiliary buffer pad; 20. Fixed rib plate. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0021] Please see Figures 1-4 A safety protection device for the end of a chain conveyor includes a workbench 1, a chain conveyor body 2, and a counterweight 3. The chain conveyor body 2 is installed on the upper wall of the workbench 1, and the counterweight 3 is connected to the end of the chain conveyor body 2. Four guide columns 4 are installed on the upper wall of the workbench 1, and two load-bearing hinge seats 5 are installed on the upper wall of the workbench 1. A first protective structure is fitted on the outer wall of the four guide columns 4, and a second protective structure is installed inside the two load-bearing hinge seats 5. A limit structure is installed on the upper wall of the workbench 1. The first protective structure includes four telescopic sleeves 6, a first load-bearing plate 7, and a first buffer pad 8. The four telescopic sleeves 6 are respectively fitted on the outer wall of the four guide columns 4, the first load-bearing plate 7 is installed on the upper wall of the four telescopic sleeves 6, and the first buffer pad 8 is installed on the upper wall of the first load-bearing plate 7.
[0022] Please see Figure 4The second protective structure includes: two load-bearing rotating shafts 9, two fixing sleeves 10, two auxiliary pressure plates 11, two auxiliary connecting frames 12, and two anti-slip blocks 13; the two load-bearing rotating shafts 9 are respectively installed in the two load-bearing hinge seats 5, the two fixing sleeves 10 are respectively fitted on the outer wall surface of the two load-bearing rotating shafts 9, the two auxiliary pressure plates 11 are installed on the outer wall surface of the two fixing sleeves 10, the two auxiliary connecting frames 12 are respectively installed on the outer wall surface of the two fixing sleeves 10 and are perpendicularly connected to the two auxiliary pressure plates 11, and the two anti-slip blocks 13 are respectively installed on the inner wall surface of the two auxiliary connecting frames 12.
[0023] Please see Figure 3 The limiting structure includes: two support plates 14, two limiting shafts 15, and two buffer bushings 16; the two support plates 14 are respectively installed on the upper wall of the worktable 1, the two limiting shafts 15 are respectively connected to the upper end face of the two support plates 14, and the two buffer bushings 16 are respectively fitted onto the outer wall of the two limiting shafts 15.
[0024] Please see Figure 2 The upper wall of the workbench 1 is equipped with a base buffer pad 17. When in use, when the first load-bearing plate 7 touches the base buffer pad 17, the base buffer pad 17 reduces the impact force of the counterweight block 3 again, serving as a third buffer device.
[0025] Please see Figure 3 Each of the four guide pillars 4 has a buffer spring 18 mounted on its outer wall and is connected to four telescopic sleeves 6. When in use, the four buffer springs 18 contract and use their elasticity as a second buffer device to reduce the impact force of the counterweight 3.
[0026] Please see Figure 4 The upper walls of the two auxiliary pressure plates 11 are respectively equipped with auxiliary buffer pads 19. When the first load-bearing plate 7 moves downward, the two auxiliary buffer pads 19 reduce the impact force and noise.
[0027] Please see Figure 3 Four fixed ribs 20 are connected between the two support plates 14 and the worktable 1. In use, the connection stability between the worktable 1 and the two support plates 14 is increased by the four fixed ribs 20.
[0028] Example 1: In this example, the first buffer pad 8, four buffer springs 18 and the base buffer pad 17 work together to form a multi-layer buffer device to reduce the impact force of the counterweight 3.
[0029] Specifically, when the counterweight 3 falls off the chain conveyor body 2, it moves downward along the chute opened on the chain conveyor body 2. When the counterweight 3 hits the first buffer pad 8, the first buffer pad 8 acts as the first buffer device to reduce the impact force of the counterweight 3. At the same time, the first load-bearing plate 7 drives the four telescopic sleeves 6 to move downward along the four guide columns 4 respectively. The four buffer springs 18 contract, and the elastic force acts as the second buffer device to reduce the impact force of the counterweight 3. When the first load-bearing plate 7 touches the base buffer pad 17, the base buffer pad 17 reduces the impact force of the counterweight 3 again, acting as the third buffer device.
[0030] In Example 2, the two fixed sleeves 10 drive the two auxiliary connecting frames 12 to rotate inward, and the two auxiliary connecting frames 12 drive the two anti-sliding blocks 13 to move inward. When the counterweight 3 drives the first load-bearing plate 7 to descend to a certain extent, the two anti-sliding blocks 13 will clamp the counterweight 3.
[0031] Specifically, when the first load-bearing plate 7 moves downward, the impact force is reduced and noise is decreased by the two auxiliary buffer pads 19. The two auxiliary pressure plates 11 drive the two fixed sleeves 10 to rotate, and the two fixed sleeves 10 drive the two load-bearing rotating shafts 9 to rotate around the two load-bearing hinge seats 5. At the same time, the two fixed sleeves 10 drive the two auxiliary connecting frames 12 to rotate inward, and the two auxiliary connecting frames 12 drive the two anti-sliding blocks 13 to move inward. When the counterweight 3 drives the first load-bearing plate 7 to a certain extent, the two anti-sliding blocks 13 will clamp the counterweight 3. In standby mode, the two auxiliary connecting frames 12 are supported by the two limiting shafts 15 to avoid affecting the conveying of the chain conveyor body 2. The noise generated when the two auxiliary connecting frames 12 come into contact with the two limiting shafts 15 is reduced by the two buffer bushings 16. The connection stability of the worktable 1 and the two support plates 14 is increased by the four fixed ribs 20.
[0032] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A safety protection device for the end of a chain conveyor, comprising a workbench (1), a chain conveyor body (2), and a counterweight (3), characterized in that, The chain conveyor body (2) is installed on the upper wall of the workbench (1), the counterweight (3) is connected to the end of the chain conveyor body (2), four guide columns (4) are installed on the upper wall of the workbench (1), two load-bearing hinge seats (5) are installed on the upper wall of the workbench (1), a first protective structure is fitted on the outer wall of the four guide columns (4), a second protective structure is installed inside the two load-bearing hinge seats (5), and a limit structure is installed on the upper wall of the workbench (1). The first protective structure includes: four telescopic sleeves (6), a first load-bearing plate (7), and a first buffer pad (8); The four telescopic sleeves (6) are respectively fitted onto the outer wall of the four guide columns (4), the first load-bearing plate (7) is installed on the upper wall of the four telescopic sleeves (6), and the first buffer pad (8) is installed on the upper wall of the first load-bearing plate (7).
2. The safety protection device at the end of a chain conveyor according to claim 1, characterized in that, The second protective structure includes: two load-bearing rotating shafts (9), two fixing sleeves (10), two auxiliary pressure plates (11), two auxiliary connecting brackets (12), and two anti-slip blocks (13). The two load-bearing shafts (9) are respectively installed in the two load-bearing hinge seats (5), the two fixed sleeves (10) are respectively fitted on the outer wall surface of the two load-bearing shafts (9), the two auxiliary pressure plates (11) are installed on the outer wall surface of the two fixed sleeves (10), the two auxiliary connecting frames (12) are respectively installed on the outer wall surface of the two fixed sleeves (10) and are perpendicularly connected to the two auxiliary pressure plates (11), and the two anti-slip blocks (13) are respectively installed on the inner wall surface of the two auxiliary connecting frames (12).
3. The safety protection device at the end of a chain conveyor according to claim 1, characterized in that, The limiting structure includes: two support plates (14), two limiting shafts (15), and two buffer bushings (16). The two support plates (14) are respectively installed on the upper wall of the workbench (1), the two limiting shafts (15) are respectively connected to the upper end face of the two support plates (14), and the two buffer bushings (16) are respectively fitted on the outer wall of the two limiting shafts (15).
4. The safety protection device at the end of a chain conveyor according to claim 1, characterized in that, The upper wall of the workbench (1) is fitted with a base buffer pad (17).
5. A safety protection device for the end of a chain conveyor according to claim 1, characterized in that, The outer walls of the four guide pillars (4) are respectively fitted with buffer springs (18) and connected to four telescopic sleeves (6).
6. A safety protection device for the end of a chain conveyor according to claim 2, characterized in that, The upper walls of the two auxiliary pressure plates (11) are respectively equipped with auxiliary buffer pads (19).
7. A safety protection device for the end of a chain conveyor according to claim 3, characterized in that, Four fixed ribs (20) are connected between the two support plates (14) and the worktable (1).