A curtain lifting pulley anti-collision device with built-in buffer strip

Abstract

The utility model relates to the technical field of lifting pulley, concretely to a curtain lifting pulley anti -collision device of built -in buffer strip, including connecting piece, pulley body and anti -collision mechanism, pulley body and the outside surface sliding connection of connecting piece's between rotation connecting pulley body has pull rope, the inside of connecting piece is provided with the pivot, the one end of anti -collision mechanism fixed connection is in connecting piece bottom, the bottom fixed connection of connecting piece has the mounting panel. The utility model, through setting up anti -collision mechanism, when curtain lifting pulley is impacted, the arched plate is forced first, through the compression of first spring and carries out preliminary buffer, then buffer board drives support rod extrusion moving block, makes second spring compression, through double spring buffer, can absorb impact force, has reduced the impact force and noise when pulley and fixed component collide, improved curtain lifting pulley's anti -collision performance, prolonged the service life of curtain lifting system.

Description

Technical Field

[0001] This utility model relates to the field of lifting pulley technology, and in particular to a curtain lifting pulley anti-collision device with built-in buffer strip. Background Technology

[0002] As people's quality of life improves, their requirements for the comfort and functionality of their home environment are increasing. As an important part of home decoration, curtains are being used more and more frequently. In daily use, the frequent raising and lowering of curtains puts a heavy workload on the curtain lifting pulleys.

[0003] In existing technologies, when curtains are raised or lowered rapidly to their limit, some curtain lifting pulleys often generate a large impact force between the pulley and the fixed parts. This not only produces a lot of noise, but also easily damages the pulley, pull cord and other components, shortening the service life of the curtain lifting system. Utility Model Content

[0004] The purpose of this invention is to solve the problem of poor anti-collision effect of pulleys in the existing technology, and to propose an anti-collision device for curtain lifting pulleys with built-in buffer strips.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a curtain lifting pulley anti-collision device with built-in buffer strip, comprising a connector, a pulley body and an anti-collision mechanism.

[0006] The pulley body and the connecting member are rotatably connected. A pull rope is slidably connected to the outer surface of the pulley body. A rotating shaft is provided inside the connecting member. The anti-collision mechanism is fixedly connected to one end of the bottom of the connecting member. A mounting plate is fixedly connected to the bottom of the connecting member.

[0007] The anti-collision mechanism includes an extension plate, which is fixedly connected to the bottom of the connector. A base plate is slidably engaged with the inner wall of the extension plate. A buffer assembly is fixedly connected to the top of the base plate. A buffer plate is movably connected to the top of the buffer assembly. A first spring is fixedly connected to the top of the buffer plate. An arched plate is fixedly connected to the top of the first spring.

[0008] Furthermore, the buffer assembly has two sets symmetrically distributed on the top of the base plate. The buffer assembly includes a fixed block fixedly connected to the top of the base plate, a connecting rod fixedly connected to the side of the fixed block, a connecting block fixedly connected to the end of the connecting rod away from the fixed block, the connecting block fixedly connected to the top of the base plate, a second spring sleeved on the outer surface of the connecting rod, a moving block fixedly connected to the end of the second spring away from the fixed block, and the moving block slidably connected to the connecting rod.

[0009] Furthermore, a support rod is movably connected to the top of the movable block, and the support rod is movably connected to the bottom of the buffer plate through the movable block.

[0010] Furthermore, the inner wall of the extension plate is provided with a sliding groove, and the bottom plate is slidably connected to the sliding groove.

[0011] Furthermore, the pull rope is slidably connected to the pulley body by passing around the pivot.

[0012] Furthermore, the top of the arched plate fits into the bottom of the mounting plate, and the pull rope is connected through to the anti-collision mechanism.

[0013] Furthermore, a fixing plate is fixedly connected to the arc-shaped surface of the connector near the pulley body, and the outer surface of the fixing plate is provided with a connection hole.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting up an anti-collision mechanism, when the curtain lifting pulley is impacted, the arched plate is first subjected to force, and the compression of the first spring provides initial buffering. Subsequently, the buffer plate drives the support rod to squeeze the moving block, causing the second spring to compress. Through double spring buffering, the impact force can be effectively absorbed, greatly reducing the impact force and noise generated when the pulley collides with the fixed parts, improving the anti-collision performance of the curtain lifting pulley, and extending the service life of the curtain lifting system. Attached Figure Description

[0016] Figure 1 This utility model presents a three-dimensional structural diagram of a curtain lifting pulley anti-collision device with built-in buffer strip;

[0017] Figure 2 This utility model provides a structural diagram of the anti-collision mechanism in a curtain lifting pulley anti-collision device with built-in buffer strip;

[0018] Figure 3 This utility model provides a cross-sectional structural diagram of a curtain lifting pulley anti-collision device with built-in buffer strip;

[0019] Figure 4 This utility model presents a partial structural diagram of a curtain lifting pulley anti-collision device with built-in buffer strip;

[0020] Figure 5 This utility model relates to an anti-collision device for curtain lifting pulleys with built-in buffer strips. Figure 4 Enlarged diagram of point A.

[0021] Legend:

[0022] 1. Connecting component; 11. Fixing plate; 2. Pulley body; 3. Anti-collision mechanism; 31. Extension plate; 32. Base plate; 33. Buffer assembly; 331. Fixing block; 332. Connecting rod; 333. Connecting block; 334. Second spring; 335. Moving block; 336. Support rod; 34. Buffer plate; 35. First spring; 36. Arched plate; 4. Pull rope; 5. Rotating shaft; 6. Mounting plate. Detailed Implementation

[0023] Please see Figure 1-5 This utility model provides a technical solution: a curtain lifting pulley anti-collision device with built-in buffer strip, including a connector 1, a pulley body 2 and an anti-collision mechanism 3.

[0024] The pulley body 2 and the connecting piece 1 are rotatably connected. A pull rope 4 is slidably connected to the outer surface of the pulley body 2. A rotating shaft 5 is provided inside the connecting piece 1. An anti-collision mechanism 3 is fixedly connected to one end of the bottom of the connecting piece 1. A mounting plate 6 is fixedly connected to the bottom of the connecting piece 1.

[0025] The specific setup and function of its anti-collision mechanism 3 will be explained below.

[0026] In this embodiment: the anti-collision mechanism 3 includes an extension plate 31, which is fixedly connected to the bottom of the connector 1. The inner wall of the extension plate 31 is slidably engaged with a base plate 32. The top of the base plate 32 is fixedly connected with a buffer assembly 33. The top of the buffer assembly 33 is movably connected with a buffer plate 34. The top of the buffer plate 34 is fixedly connected with a first spring 35. The top of the first spring 35 is fixedly connected with an arched plate 36.

[0027] The effects achieved by the above components are as follows: the extension plate 31 provides a mounting base for the entire anti-collision mechanism 3, making it firmly connected to the bottom of the connector 1; the base plate 32 is slidably engaged with the inner wall of the extension plate 31, and can slide within a certain range, providing space for the subsequent buffering process; the buffer assembly 33, the buffer plate 34, the first spring 35 and the arched plate 36 cooperate with each other to form a multi-level buffer structure, which can effectively absorb the impact force generated by the collision.

[0028] Specifically, there are two sets of buffer components 33 symmetrically distributed on the top of the base plate 32. The buffer components 33 include a fixing block 331 fixedly connected to the top of the base plate 32, a connecting rod 332 fixedly connected to the side of the fixing block 331, a connecting block 333 fixedly connected to the end of the connecting rod 332 away from the fixing block 331, the connecting block 333 fixedly connected to the top of the base plate 32, a second spring 334 sleeved on the outer surface of the connecting rod 332, a moving block 335 fixedly connected to the end of the second spring 334 away from the fixing block 331, and the moving block 335 slidably connected to the connecting rod 332.

[0029] The effects achieved by the above components are as follows: the two sets of symmetrically distributed buffer components 33 ensure the balance of buffering force and avoid damage to the device caused by uneven force; the fixed block 331 and the connecting block 333 form a stable frame through the connecting rod 332, providing support and guidance for the second spring 334 and the moving block 335; the second spring 334 can be compressed and deformed when subjected to external force, absorbing and storing collision energy, and the moving block 335 slides along the connecting rod 332, cooperating with the second spring 334 to achieve the buffering function.

[0030] Specifically, a support rod 336 is movably connected to the top of the movable block 335, and the support rod 336 is movably connected to the bottom of the buffer plate 34 through the movable block.

[0031] The effect achieved by the above components is as follows: when the buffer plate 34 is subjected to a downward impact force, the support rod 336 can transmit the force to the moving block 335, pushing the moving block 335 to compress the second spring 334; the movable connection allows the support rod 336 to flexibly transmit force at different angles, ensuring the smooth progress of the buffering process.

[0032] Specifically, the inner wall of the extension plate 31 is provided with a groove, and the bottom plate 32 is slidably connected to the groove.

[0033] The effect achieved by the above components is that the sliding fit between the slide and the base plate 32 allows the base plate 32 to move along the slide direction when subjected to a large impact force, further increasing the buffer stroke and improving the buffering effect, while also enhancing the overall stability of the anti-collision mechanism 3.

[0034] Specifically, the pull rope 4 passes around the pivot 5 and slides to connect with the pulley body 2.

[0035] The effect achieved by the above components is that the pull cord 4 passes around the pivot 5 and slides to connect with the pulley body 2 to form a transmission structure, thereby realizing the raising and lowering operation of the curtain.

[0036] Specifically, the top of the arched plate 36 fits into the bottom of the mounting plate 6, and the pull rope 4 is connected to the anti-collision mechanism 3.

[0037] The effects achieved by the above components are as follows: the arched plate 36 fits snugly against the mounting plate 6, and can promptly transmit the impact force to the first spring 35 and the buffer assembly 33 during a collision; the pull rope 4 is connected to the anti-collision mechanism 3, which does not affect the normal transmission of the pull rope 4, and at the same time enables the anti-collision mechanism 3 to protect the pull rope 4 and the pulley body 2.

[0038] Specifically, a fixing plate 11 is fixedly connected to the arc-shaped surface of the connector 1 near the pulley body 2, and the outer surface of the fixing plate 11 is provided with a connection hole.

[0039] The effect achieved by the above components is that the setting of the fixing plate 11 and the connecting hole makes it convenient to install the entire curtain lifting pulley anti-collision device on the curtain track or other fixed structure, thereby improving the convenience and versatility of the device installation.

[0040] Working principle: When the curtain rises and falls rapidly to its limit position, the pulley body 2 drives the connecting piece 1 to impact the fixed part. The arched plate 36 first contacts the fixed part and, after being impacted, compresses the first spring 35 upward for the first buffering. As the impact continues, the buffer plate 34 is pushed downward, and through the support rod 336, it squeezes the moving block 335, causing the second spring 334 to compress and deform for the second buffering.

[0041] During this process, the base plate 32 can slide within the groove of the extension plate 31, further increasing the buffer stroke. The double spring buffer and the sliding cooperation of the base plate 32 effectively absorb and disperse the impact force generated by the collision, reduce collision damage between the pulley and the fixed parts, reduce noise, protect the various components of the curtain lifting system, and extend its service life.

Claims

1. A curtain lifting pulley anti-collision device with built-in buffer strip, comprising a connector (1), a pulley body (2), and an anti-collision mechanism (3), characterized in that: The pulley body (2) and the connector (1) are rotatably connected. The outer surface of the pulley body (2) is slidably connected with a pull rope (4). The connector (1) is provided with a rotating shaft (5). The anti-collision mechanism (3) is fixedly connected to one end of the bottom of the connector (1). The bottom of the connector (1) is fixedly connected with a mounting plate (6). The anti-collision mechanism (3) includes an extension plate (31), which is fixedly connected to the bottom of the connector (1). The inner wall of the extension plate (31) is slidably engaged with a base plate (32). The top of the base plate (32) is fixedly connected with a buffer assembly (33). The top of the buffer assembly (33) is movably connected with a buffer plate (34). The top of the buffer plate (34) is fixedly connected with a first spring (35). The top of the first spring (35) is fixedly connected with an arched plate (36).

2. The anti-collision device for curtain lifting pulleys with built-in buffer strips according to claim 1, characterized in that: The buffer assembly (33) has two sets symmetrically distributed on the top of the base plate (32). The buffer assembly (33) includes a fixed block (331) fixedly connected to the top of the base plate (32). A connecting rod (332) is fixedly connected to the side of the fixed block (331). A connecting block (333) is fixedly connected to the end of the connecting rod (332) away from the fixed block (331). The connecting block (333) is fixedly connected to the top of the base plate (32). A second spring (334) is sleeved on the outer surface of the connecting rod (332). A moving block (335) is fixedly connected to the end of the second spring (334) away from the fixed block (331). The moving block (335) is slidably connected to the connecting rod (332).

3. The anti-collision device for curtain lifting pulleys with built-in buffer strips according to claim 2, characterized in that: The top of the movable block (335) is movably connected to a support rod (336), and the support rod (336) is movably connected to the bottom of the buffer plate (34) through the movable block.

4. The anti-collision device for curtain lifting pulleys with built-in buffer strips according to claim 1, characterized in that: The inner wall of the extension plate (31) is provided with a sliding groove, and the bottom plate (32) is slidably connected to the sliding groove.

5. The anti-collision device for curtain lifting pulleys with built-in buffer strips according to claim 1, characterized in that: The pull rope (4) passes around the pivot (5) and slides to connect with the pulley body (2).

6. The anti-collision device for curtain lifting pulleys with built-in buffer strips according to claim 1, characterized in that: The top of the arched plate (36) is attached to the bottom of the mounting plate (6), and the pull rope (4) is connected to the anti-collision mechanism (3).

7. The anti-collision device for curtain lifting pulleys with built-in buffer strips according to claim 1, characterized in that: The connecting piece (1) has a fixed plate (11) fixedly connected to the arc-shaped surface of the side near the pulley body (2), and the outer surface of the fixed plate (11) is provided with a connection hole.

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