Integrated sliding door pulley block

Abstract

An integrated sliding door pulley block comprises a base, an installation area is arranged on the base, a pulley plate is installed in the installation area, a guide wheel is rotationally installed on the pulley plate, and the outer circle of the guide wheel protrudes out of the lower end face of the pulley plate. The lower end face of the pulley plate extends downwards to form a trigger head, and the trigger head interacts with a buffer in the guide rail to play a role in buffering when the sliding door is closed. The beneficial effects of the utility model are that the trigger head directly extends downwards from the lower end face of the pulley plate and forms an integrated design with the pulley plate. Compared with the scheme that the trigger serves as an independent accessory and is fixed through additional parts such as a screw or a buckle in the prior art, independent installation of the trigger and related connecting pieces of the trigger are omitted. According to the integrated design, the number of parts of the pulley block is remarkably reduced, the production and assembly process is simplified, the production efficiency is improved, and meanwhile the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to a hardware accessory, specifically an integrated sliding door pulley assembly. Background Technology

[0002] Sliding doors, widely used in modern homes and commercial spaces, require smooth and quiet operation during opening and closing for optimal user experience. To achieve a buffering effect when sliding doors close, reducing noise and potential damage from impacts with the door frame, existing technologies typically incorporate triggers in the sliding door pulley system. These triggers interact with a buffer within the guide rail, which slows the closing speed of the door, thus preventing direct impact. However, existing sliding door pulley systems generally suffer from the following technical shortcomings in achieving this buffering function:

[0003] 1. Numerous Components: In existing technologies, triggers are typically mounted as a separate accessory on pulley blocks. To secure them, additional connecting parts such as screws, clips, or similar fasteners are usually required. This design significantly increases the number of components in the pulley block, not only raising production costs but also increasing the complexity of the assembly process and reducing production efficiency.

[0004] 2. Loosening of the connecting mechanism: Because the trigger is connected to the pulley block through additional connecting parts, these connecting mechanisms are susceptible to vibration, friction, or material fatigue during use, leading to loosening or failure. Once the connection becomes loose, the matching accuracy between the trigger and the buffer will decrease, and the buffer may even fail to activate, resulting in buffering failure. As a result, the sliding door closing speed cannot be effectively reduced, and noise and impact problems persist.

[0005] 3. Difficult Installation and Maintenance: As an independent component, the trigger's installation position and angle require precise adjustment to ensure effective engagement with the buffer within the guide rail. This requirement increases the difficulty of installation and the technical barrier. Furthermore, during long-term use, if the trigger needs replacement or adjustment due to loosening or damage, maintenance personnel must disassemble multiple related components, further increasing maintenance time and costs.

[0006] 4. Complex overall structure, affecting reliability: In existing pulley systems, the trigger and pulley plate, among other core components, are designed separately, resulting in a complex overall structure. This complex structure not only increases manufacturing difficulty but may also reduce the stability of the pulley system due to wear or misalignment between components, thus affecting the product's lifespan and reliability. Therefore, further improvements are necessary. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an integrated sliding door pulley assembly that has a simple structure, reduces the number of parts, and effectively improves connection stability.

[0008] The purpose of this utility model is achieved in the following way: an integrated sliding door pulley assembly, which includes a base, an installation area on the base, a pulley plate installed in the installation area, a guide wheel rotatably installed on the pulley plate, and the outer circle of the guide wheel protruding from the lower end face of the pulley plate.

[0009] The lower end face of the pulley plate extends downward to form a trigger head. The trigger head interacts with the buffer in the guide rail to buffer the sliding door when it closes.

[0010] Furthermore, the trigger head is provided in two parts, symmetrically distributed on both sides of the guide wheel.

[0011] Furthermore, the trigger head and pulley plate are integrally stamped from a metal sheet.

[0012] Furthermore, the guide wheel is rotatably mounted on the inner side of the pulley plate by means of rivets, and the guide wheel is clamped between the pulley plate and the base.

[0013] Furthermore: the guide wheel includes a bearing and a plastic wheel covering its outer circumference.

[0014] Furthermore, the upper and lower ends of the base have support plates extending to one side, forming an installation area between the support plates and the base.

[0015] Furthermore: A first guide rod and a second guide rod are vertically and parallelly installed in the installation area. The two ends of the first guide rod and the second guide rod are connected to the support plate. A guide plate extends from the pulley plate toward the inner side of the installation area. A guide hole is opened on the guide plate. The guide hole is fitted onto the first guide rod and the second guide rod and can slide along it.

[0016] Furthermore, the support plate is also screwed with a height adjustment bolt, which is connected to a pulley plate. Rotating the height adjustment bolt pushes the support plate to move within the installation area, thereby adjusting the height of the sliding door.

[0017] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0018] 2. The trigger head extends directly downwards from the lower end face of the pulley plate, forming an integrated design with the pulley plate. Compared to the existing technology where the trigger is a separate accessory and fixed by additional components such as screws or clips, this invention eliminates the need for separate installation of the trigger and its related connecting parts. This integrated design significantly reduces the number of parts in the pulley block, simplifies the production and assembly process, improves production efficiency, and reduces manufacturing costs.

[0019] 3. The trigger head and pulley plate are integrally stamped from a metal sheet. This manufacturing method eliminates the connection gap between the trigger and the pulley plate in traditional designs, avoiding loosening problems caused by vibration or long-term use. Compared with the trigger design in the prior art that relies on additional connecting parts, this utility model significantly improves the overall stability of the structure, reduces the risk of buffer function failure, and thus enhances the durability of the product.

[0020] 4. The trigger head is set as two pieces, symmetrically distributed on both sides of the guide wheel. Compared with the single-sided trigger in the prior art, this symmetrical design allows the structure to be used regardless of left or right, enabling the present invention to better cope with movement in different directions and ensure the buffering effect when the sliding door closes.

[0021] 5. An adjusting bolt is threaded onto the support plate. Rotating the adjusting bolt moves the pulley plate within the installation area, thereby adjusting the sliding door height. This design makes height adjustment simple and precise, allowing for adjustment without disassembling the pulley assembly. Compared to the complex methods of adjusting height in existing technologies that require disassembling and reassembling components, this invention significantly improves the convenience of installation and maintenance, and enhances the product's adaptability to different installation environments and user needs. Attached Figure Description

[0022] Figure 1 , 2 This is a rendering of the final assembly of this utility model.

[0023] Figure 3 , 4 This is an exploded view of the structure of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. An integrated sliding door pulley assembly includes a base 1, an installation area 2 on the base 1, a pulley plate 3 installed in the installation area 2, and a guide wheel 4 rotatably installed on the pulley plate 3. The outer circle of the guide wheel 4 protrudes from the lower end face of the pulley plate 3.

[0025] The lower end face of the pulley plate 3 extends downward to a trigger head 31. The trigger head 31 interacts with the buffer in the guide rail to buffer the sliding door when it closes.

[0026] In one embodiment: the trigger head 31 is provided in two pieces, which are symmetrically distributed on both sides of the guide wheel 4.

[0027] In one embodiment, the trigger head 31 and the pulley plate 3 are integrally stamped from a metal sheet.

[0028] In one embodiment: the guide wheel 4 is rotatably mounted on the inner side of the pulley plate 3 by rivets 6, and the guide wheel 4 is clamped between the pulley plate 3 and the base 1.

[0029] In one embodiment, the guide wheel 4 includes a bearing 41 and a plastic wheel 42 covering its outer circumference.

[0030] In one embodiment: support plates 11 extend from the upper and lower ends of the base 1 to one side, and an installation area 2 is formed between the support plates 11 and the base 1.

[0031] In one embodiment: a first guide rod 5 and a second guide rod 51 are vertically and parallelly installed in the installation area 2. The two ends of the first guide rod 5 and the second guide rod 51 are connected to the support plate 11. A guide plate 21 extends from the pulley plate 3 into the installation area 2. A guide hole 22 is provided on the guide plate 21. The guide hole 22 is sleeved on the first guide rod 5 and the second guide rod 51 and can slide along them.

[0032] In one embodiment: a height adjustment bolt is also screwed onto the support plate 11. The height adjustment bolt is connected to the pulley plate 3. Rotating the height adjustment bolt pushes the support plate 11 to move within the installation area 2 to adjust the height of the sliding door.

[0033] Working principle: In this case, the base 1, as the basic component of the entire pulley system, is fixed to the bottom of the sliding door to support and bear other structures. The base 1 has an installation area 2, which provides installation space for the pulley plate 3 and its related components. The installation area 2 is formed by support plates 11 extending to one side from both the upper and lower ends of the base 1, providing a stable framework for the movement and adjustment of subsequent components.

[0034] It should be noted that the integrated extension design of the base 1 and the support plate 11 in this case enhances the overall strength and deformation resistance of the structure, avoids the loosening risk of traditional separate designs, and improves the stability and durability of the pulley system. The installation area 2 simplifies the assembly process and improves production efficiency.

[0035] Furthermore, the pulley plate 3 is installed within the mounting area 2, and a guide wheel 4 is rotatably mounted on it via rivets 6. The guide wheel 4 protrudes from the lower end face of the pulley plate 3, contacts the guide rail, and provides rolling support and guides the sliding movement of the sliding door. The guide wheel 4 includes a bearing 41 and a plastic wheel 42 covering its outer circumference. The bearing ensures smooth rotation, and the plastic wheel reduces frictional noise with the guide rail.

[0036] When the sliding door slides, the guide wheel 4 rolls on the guide rail, and the pulley plate 3, through its connection with the base 1, transmits the weight and motion force of the sliding door to the entire pulley group, ensuring the stability of the sliding trajectory.

[0037] Compared to traditional technologies, the guide wheel 4 in this case is clamped between the pulley plate 3 and the base 1, resulting in a compact structure that saves space and facilitates installation in confined spaces. The combination of the bearing 41 and the plastic wheel 42 significantly improves smoothness and quietness of sliding, reduces friction and wear, and extends service life.

[0038] One key point to note is that the lower end of the pulley plate 3 in this case extends to a trigger head 31. Two trigger heads 31 are symmetrically distributed on both sides of the guide wheel 4, and are integrally stamped from a metal sheet with the pulley plate 3. When the sliding door closes, the trigger head 31 contacts and interacts with the buffer inside the guide rail, triggering a buffering mechanism to slow down the closing speed of the sliding door and prevent direct impact with the door frame.

[0039] Therefore, the integrated stamping design of the trigger head 31 and the pulley plate 3 in this case eliminates the connection gap of traditional independent triggers, avoids loosening problems, simplifies the structure, reduces the number of parts, and improves assembly efficiency and connection stability. The symmetrical design of the dual trigger heads ensures uniform contact with the buffer, improves the accuracy and reliability of buffer triggering, and makes this pulley group usable in both directions without distinguishing between left and right.

[0040] Furthermore, in this case, a first guide rod 5 and a second guide rod 51 are vertically and parallelly installed in the installation area 2, with both ends connected to the support plate 11. A guide plate 21 extends from the pulley plate 3 into the installation area 2, and a guide hole 22 is provided on the guide plate 21. The guide hole 22 is fitted onto the first guide rod 5 and the second guide rod 51 and can slide along them. When the sliding door moves, the pulley plate 3 slides along the guide rods through the guide plate 21, ensuring the accuracy and stability of the movement direction.

[0041] The dual guide rod design provides a stable guiding mechanism for the pulley plate 3, reducing offset and jamming during the sliding process. Compared with the existing single guide rod system, it significantly improves the smoothness of opening and closing of the sliding door and the comfort of use.

[0042] Furthermore, the support plate 11 in this case is threadedly connected to an adjusting bolt 7, which is connected to the pulley plate 3. By rotating the adjusting bolt 7, the pulley plate 3 can be moved up and down within the installation area 2, thereby adjusting the height of the guide wheel 4 relative to the guide rail, ultimately achieving precise adjustment of the sliding door height. This adjustment process does not require disassembling the pulley assembly and can be completed with simple operation.

[0043] The design of the height adjustment bolt 7 enables a simple height adjustment function, improves the convenience of installation and maintenance, and enhances the product's adaptability to different installation environments. Compared with the traditional adjustment method that requires disassembly and assembly of parts, the operation is more efficient and can therefore be widely promoted and used.

[0044] 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.

Claims

1. An integrated gangway pulley block, characterized by: It includes a base (1), an installation area (2) is provided on the base (1), a pulley plate (3) is installed on the installation area (2), a guide wheel (4) is rotatably installed on the pulley plate (3), and the outer circle of the guide wheel (4) protrudes from the lower end face of the pulley plate (3); The lower end face of the pulley plate (3) extends downward to a trigger head (31). The trigger head (31) interacts with the buffer in the guide rail to buffer the sliding door when it is closed.

2. An integrated door sled pulley assembly according to claim 1, wherein: The trigger head (31) is provided in two parts, which are symmetrically distributed on both sides of the guide wheel (4).

3. An integrated door sled pulley assembly according to claim 1 or 2, wherein: The trigger head (31) and the pulley plate (3) are integrally stamped from metal sheet.

4. An integrated door sled pulley assembly according to claim 1, wherein: The guide wheel (4) is rotatably mounted on the inner side of the pulley plate (3) by rivets (6), and the guide wheel (4) is clamped between the pulley plate (3) and the base (1).

5. An integrated door sled pulley assembly according to claim 1, wherein: The guide wheel (4) includes a bearing (41) and a plastic wheel (42) covering its outer circle.

6. The integrated sliding door pulley system according to claim 1, characterized in that: The base (1) has support plates (11) extending to one side at both ends, and an installation area (2) is formed between the support plates (11) and the base (1).

7. An integrated door sled pulley assembly according to claim 1 or 6, wherein: The installation area (2) is vertically and parallelly equipped with a first guide rod (5) and a second guide rod (51). The two ends of the first guide rod (5) and the second guide rod (51) are connected to the support plate (11). The pulley plate (3) extends into the installation area (2) with a guide plate (21). The guide plate (21) has a guide hole (22). The guide hole (22) is fitted on the first guide rod (5) and the second guide rod (51) and can slide along them.

8. An integrated door sled pulley assembly according to claim 6, wherein: The support plate (11) is also screwed with a height adjustment bolt (7), which is connected to the pulley plate (3). Rotating the height adjustment bolt (7) pushes the support plate (11) to move within the installation area (2) to adjust the height of the sliding door.

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