Speed difference device with buffering function

Abstract

The utility model discloses a speed difference device with a buffering function, which comprises a speed difference device body, a telescopic rope in the speed difference device body extends to the outside and is provided with a first hook, two sides of the speed difference device body are provided with fixing rings, the outer ring surface of each fixing ring is provided with an annular groove, a positioning ring is movably arranged in each annular groove, and the first hook is provided with a second hook. Fixing rods are mounted on the outer ring surfaces of the positioning rings, compression springs are mounted at the other ends of the fixing rods, steel wire ropes are mounted at the other ends of the compression springs, second hooks are mounted at the other ends of the steel wire ropes, and middle rings are mounted on the first hooks. The safety protection device is simple in structure and capable of conducting double fixation, safety is improved, the compression spring is installed at one end of the second hook, the buffering effect can be achieved through the elasticity of the compression spring and the damping of the high-damping rubber rod, injuries caused by hard landing are avoided, meanwhile, the second hook can rotate to one side of the first hook, and the safety is improved. And the first hook is fixed on the first hook, so that the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of differential speed device technology, specifically to a differential speed device with a buffer function. Background Technology

[0002] The differential speed device is used for safety protection when lifting workpieces by overhead cranes to prevent them from falling accidentally. It can effectively protect the lives of ground operators and prevent damage to the lifted workpieces. It is used in high-altitude work sites such as metallurgy, automobile manufacturing, petrochemicals, engineering construction, power, shipbuilding, communications, pharmaceuticals, and bridges.

[0003] The locking function of current speed differential controllers on the market is rather rigid. Once the locking function is activated, the device will immediately stop, and such a hard landing will generate a reaction force on the user, thus causing minor injury. In addition, the hooks of the speed differential are located at both ends, and the hooks in both directions swing irregularly during the carrying process, which can easily get caught on external objects, thus affecting the safety of carrying. Therefore, further improvements are needed. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a speed differential with a buffer function. The compression spring can play a buffering role to avoid hard landing, and the second hook can rotate to the outside of the first hook and be fixed together with the first hook, which increases the stability when carrying, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a differential with a buffer function, comprising a differential body, wherein a telescopic rope inside the differential body extends to the outside and is equipped with a first hook, and fixing rings are installed on both sides of the differential body, each fixing ring having an annular groove on its outer surface, a positioning ring being movably disposed in each annular groove, a fixing rod being installed on the outer surface of each positioning ring, a compression spring being installed at the other end of each fixing rod, a steel wire rope being installed at the other end of each compression spring, and a second hook being installed at the other end of each steel wire rope, the second hook and the first hook being arranged opposite to each other, each first hook having an intermediate ring installed on it, and each second hook having a fixing mechanism connected to the intermediate ring installed on it.

[0006] As a preferred technical solution, the fixing mechanism includes a side ring, a screw, and a rotating plate. The side rings are all installed on the second hook. The openings at both ends of the middle ring are provided with threads. The screws pass through the side rings and are inserted into the middle rings, and are threadedly connected to the threads. The rotating plates are all installed on the opposite end face of the screws.

[0007] As a preferred technical solution, each side ring has a ring-shaped limiting groove in the middle, and the screw protrudes from the limiting groove to form a ring-shaped limiting part, which is movably disposed in the limiting groove.

[0008] As a preferred technical solution, the fixing ring, positioning ring, and fixing rod are all made of steel. The width of the positioning ring matches the width of the annular groove, and the outer ring of the positioning ring protrudes from the annular groove.

[0009] As a preferred technical solution, the compression springs are all high-strength tensile springs, and each compression spring has a high-damping rubber rod inside, with both ends of the high-damping rubber rod installed at both ends of the compression spring.

[0010] As a preferred technical solution, the steel wire rope is wrapped with a rubber sleeve.

[0011] The beneficial effects of this utility model are as follows: This utility model has a simple structure and is equipped with two second hooks, which can provide double fixation and increase safety. One end of the second hook is equipped with a compression spring. The elasticity of the compression spring and the damping of the high-damping rubber rod can play a buffering role, avoiding injury caused by hard landing. At the same time, the second hook can rotate to the side of the first hook and be fixed on the first hook. After the hooks are aligned, the overall structure is more compact, avoiding synchronous left and right swaying at both ends during walking or transportation, reducing the risk of snagging on surrounding objects and increasing safety. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model after removing any side ring;

[0016] Figure 4 This is a schematic diagram of the structure of the fixing ring of this utility model.

[0017] The components include: 1. Differential gear body; 2. Fixed ring; 3. Positioning ring; 4. Fixed rod; 5. Compression spring; 6. Steel wire rope; 7. Second hook; 8. First hook; 9. Side ring; 10. Intermediate ring; 11. Rotating plate; 12. Screw; 13. Limiting part; 14. Annular groove. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a differential speed device with a buffer function, characterized in that: it includes a differential speed device body 1, a telescopic rope inside the differential speed device body 1 extending to the outside and equipped with a first hook 8, fixing rings 2 installed on both sides of the differential speed device body 1, annular grooves 14 provided on the outer ring surface of the fixing rings 2, positioning rings 3 movably arranged in the annular grooves 14, fixing rods 4 installed on the outer ring surface of the positioning rings 3, compression springs 5 ​​installed on the other end of the fixing rods 4, steel wire ropes 6 installed on the other end of the compression springs 5, and second hooks 7 installed on the other end of the steel wire ropes 6. The second hooks 7 and the first hooks 8 are arranged opposite to each other, an intermediate ring 10 is installed on the first hook 8, and a fixing mechanism connected to the intermediate ring 10 is installed on the second hook 7.

[0022] In this embodiment, the fixing mechanism includes a side ring 9, a screw 12 and a rotating plate 11. The side rings 9 are all installed on the second hook 7. The openings at both ends of the middle ring 10 are provided with threads. The screws 12 pass through the side rings 9 and are inserted into the middle ring 10, and are threadedly connected to the threads. The rotating plates 11 are all installed on the opposite end face of the screws 12.

[0023] The threaded connection facilitates the connection and separation between the second hook and the first hook.

[0024] In this embodiment, a ring-shaped limiting groove is provided in the middle of the side ring 9. The screw 12 protrudes from the limiting groove to form a ring-shaped limiting part 13. The limiting part 13 is movably disposed in the limiting groove, so that the screw can only rotate in the limiting groove, thus preventing the screw from falling out of the side ring.

[0025] In this embodiment, the fixing ring 2, the positioning ring 3, and the fixing rod 4 are all made of steel. The width of the positioning ring 3 matches the width of the annular groove 14. The outer ring of the positioning ring 3 protrudes from the annular groove 14, which increases the stability of the positioning ring after installation. The protruding structure also prevents friction and collision between the fixing rod and the fixing ring, thus increasing safety. Furthermore, the use of steel increases the strength of the fixing ring, the positioning ring, and the fixing rod, preventing breakage and further enhancing safety.

[0026] In this embodiment, all compression springs 5 ​​are high-strength tensile springs, and each compression spring 5 has a high-damping rubber rod inside, with both ends of the high-damping rubber rod installed at both ends of the compression spring 5.

[0027] When high-damping rubber is deformed, such as when it is stretched, its internal molecular chains or microstructure will generate significant internal friction. This internal friction converts mechanical energy into heat energy. When the spring is stretched, the high-damping rubber rod deforms accordingly. Its high-damping characteristics cause energy to dissipate continuously, suppressing vibration and thus achieving a damping effect.

[0028] In this embodiment, the steel wire rope 6 is wrapped with a rubber sleeve, which can block the wind and sun from the outside and prevent the steel wire rope from rusting.

[0029] When carried, the positioning ring can be rotated along the annular groove. The rotation of the positioning ring drives the fixing rod, the compression spring and the second hook until the second hook rotates to the side of the first hook. At this time, the rotating plate is rotated, and the rotation of the rotating plate drives the screw to rotate around the limiting groove until the thread connects to the middle ring, so that the second hook and the first hook are fixed on one side. The second hook and the first hook are restricted to one side. After the hooks are aligned, the overall structure is more compact, avoiding synchronous left and right swaying at both ends during walking or transportation, and reducing the risk of hooking around objects.

[0030] In use, the screw is rotated in the opposite direction. After the screw moves out of the middle ring, the second hook can rotate around the annular groove to the side away from the first hook. The two second hooks can be doubly fixed to external objects, while the first hook is fixed to the worker's hanging ring. In the event of a fall, the elasticity of the compressed spring and the damping of the high-damping rubber rod can act as a buffer, avoiding injuries caused by a hard landing and increasing safety.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A differential speed device with a buffer function, characterized in that: The device includes a differential body (1), with a telescopic rope inside the differential body (1) extending to the outside and equipped with a first hook (8). Fixing rings (2) are installed on both sides of the differential body (1). Annular grooves (14) are provided on the outer ring surface of each fixing ring (2). Positioning rings (3) are movably arranged in each annular groove (14). Fixing rods (4) are installed on the outer ring surface of each positioning ring (3). Compression springs (5) are installed on the other end of each fixing rod (4). Wire ropes (6) are installed on the other end of each compression spring (5). Second hooks (7) are installed on the other end of each wire rope (6). The second hooks (7) and the first hooks (8) are arranged opposite to each other. An intermediate ring (10) is installed on each first hook (8). A fixing mechanism connected to the intermediate ring (10) is installed on each second hook (7).

2. The differential speed device with buffer function according to claim 1, characterized in that: The fixing mechanism includes a side ring (9), a screw (12) and a rotating plate (11). The side rings (9) are all installed on the second hook (7). The openings at both ends of the middle ring (10) are provided with threads. The screws (12) pass through the side rings (9) and are inserted into the middle ring (10), and are threadedly connected to the threads. The rotating plates (11) are all installed on the opposite end face of the screws (12).

3. The differential speed device with buffer function according to claim 2, characterized in that: The middle of the side ring (9) is provided with a ring-shaped limiting groove, and the screw (12) protrudes to form a ring-shaped limiting part (13) opposite to the limiting groove. The limiting part (13) is movably set in the limiting groove.

4. The differential speed device with buffer function according to claim 1, characterized in that: The fixing ring (2), positioning ring (3) and fixing rod (4) are all made of steel. The width of the positioning ring (3) matches the width of the annular groove (14). The outer ring of the positioning ring (3) protrudes from the annular groove (14).

5. The differential speed device with buffer function according to claim 1, characterized in that: All compression springs (5) are high-strength tensile springs, and each compression spring (5) has a high-damping rubber rod inside, with both ends of the high-damping rubber rod installed at both ends of the compression spring (5).

6. The differential speed device with buffer function according to claim 1, characterized in that: The steel wire rope (6) is covered with a rubber sleeve.

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