Anti-jumping pulley structure
By introducing limiting components and buffer start hooks into the pulley assembly, the problem of pulleys detaching from the track is solved, achieving a balance between safety and the overall integrity of the glass door, avoiding the impact of additional openings, and improving the aesthetics and user experience of the glass door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN FLANGE SANITARY WARE CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional top pulley tracks lack limiting structures, making it easy for pulleys to detach from the track, posing a safety hazard. Additionally, installing anti-jump nails on glass doors can affect the overall integrity of the structure.
A limiting element is introduced into the pulley assembly. The limiting element is inserted into the track groove. Combined with a buffer start hook and a buffer, it prevents the pulley assembly from falling off the track. The limiting element is fixed by a detachable connection to avoid making holes in the glass door.
It effectively prevents the pulley assembly from derailing, improving safety, while not affecting the integrity and aesthetics of the glass door, avoiding scratches on the outer surface of the track, providing buffer protection, and ensuring that the glass door closes smoothly.
Smart Images
Figure CN224134463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door technology, and in particular to an anti-jump pulley structure. Background Technology
[0002] Traditional top pulley tracks are exposed tracks. The advantage of this structure is that the track is more reasonably stressed, and the disassembly and installation of the door are simpler and more convenient than other door types. However, due to the lack of a limiting structure, the pulleys are prone to detaching from the track, which can cause safety accidents.
[0003] In this regard, such as Figure 1 As shown, existing sliding doors have anti-jumping nails 11 installed on the glass door 10. The anti-jumping nails 11 are located below the track 100, thus preventing the pulley assembly 200 from jumping upwards. However, installing the anti-jumping nails 11 requires drilling holes in the glass door 10, which affects the integrity of the glass door 10. Utility Model Content
[0004] This utility model provides an anti-jump pulley structure that can prevent the pulley assembly from derailing from the track without affecting the integrity of the glass door.
[0005] To solve the above problems, the present invention adopts the following technical solution:
[0006] An embodiment of this utility model provides an anti-jump pulley structure, including a pulley assembly and a track. The top surface of the track is provided with a track groove, and the inner sidewall of the track groove is provided with a limiting groove. The extending direction of the limiting groove is parallel to the extending direction of the track groove. The pulley assembly includes a base, a pulley, and a limiting member. The pulley and the limiting member are both mounted on the base. At least a portion of the pulley is located in the track groove, and the pulley can roll in the track groove. The limiting member is inserted into the limiting groove.
[0007] In some embodiments, the pulley assembly further includes a buffer start hook connected to the base, and the top surface of the track is provided with a buffer groove, the buffer groove being located on one side of the track groove, and the extension direction of the buffer groove being parallel to the extension direction of the track groove; a buffer is fixed in the buffer groove, and the buffer start hook extends into the buffer groove, and when the pulley assembly moves to a preset position, the buffer start hook can trigger the buffer.
[0008] In some embodiments, the limiting member is detachably connected to the buffer start hook.
[0009] In some embodiments, the limiting member is located below the buffer start hook, and both the limiting member and the buffer start hook are provided with a through hole that penetrates itself in a vertical direction; the pulley assembly also includes a screw and a nut sleeved on the screw, the screw passing through the through holes of the limiting member and the buffer start hook, the head of the screw being located below the limiting member, and the nut being located above the buffer start hook.
[0010] In some embodiments, the limiting member is provided with a positioning protrusion, and the base or buffer start hook is provided with a positioning groove adapted to the positioning protrusion, wherein the positioning protrusion is embedded in the positioning groove.
[0011] In some embodiments, the base includes a first base body and a second base body connected to the first base body, the first base body and the second base body being used to clamp a glass door; the pulley and the limiting member are both installed on the side of the first base body away from the second base body.
[0012] In some embodiments, the outer side of the second seat is provided with a decorative cover.
[0013] In some embodiments, a cushioning pad is provided on the side of the first seat body near the second seat body.
[0014] In some embodiments, the pulley assembly further includes a dust cover that covers the pulley.
[0015] In some embodiments, two pulleys are provided along the extension direction of the track groove, and the buffer start hook is located between the two pulleys.
[0016] This utility model has at least the following beneficial effects: the inner side wall of the track groove is provided with a limiting groove, the pulley assembly includes a limiting member, the limiting member is inserted into the limiting groove, and the cooperation between the limiting member and the limiting groove can prevent the pulley assembly from jumping upward and prevent the pulley assembly from leaving the track; at the same time, the limiting member is installed on the pulley assembly, so there is no need to open additional holes in the glass door and the integrity of the glass door is not affected.
[0017] In addition, since the limiting component is inserted into the limiting groove, it is more concealed and will not scratch the outer surface of the track during the process of limiting the pulley assembly to jump. Attached Figure Description
[0018] Figure 1 A schematic diagram of the structure of a glass door system in the prior art.
[0019] Figure 2 This is a schematic diagram of an anti-jump pulley structure according to an embodiment of the present invention;
[0020] Figure 3 for Figure 2 A side view of the anti-jump pulley structure shown;
[0021] Figure 4 This is a schematic diagram of the anti-jump pulley structure according to another embodiment of the present invention;
[0022] Figure 5 This is a schematic diagram of the pulley assembly according to an embodiment of the present invention;
[0023] Figure 6 This is an exploded view of a pulley assembly according to an embodiment of the present invention.
[0024] The attached figures are labeled as follows:
[0025] Glass door 10, anti-jump nails 11;
[0026] Track 100, track groove 110, limit groove 120, buffer groove 130, buffer 140;
[0027] Pulley assembly 200, base 210, first seat 211, second seat 212, decorative cover 213, buffer pad 214, pulley 220, limiting member 230, through hole 231, positioning protrusion 232, buffer start hook 240, dust cover 250, positioning slot 251, screw 261, nut 262. Detailed Implementation
[0028] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.
[0029] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.
[0031] An embodiment of this utility model provides an anti-jump pulley structure, such as... Figure 2 and Figure 3As shown, the system includes a pulley assembly 200 and a track 100. The top surface of the track 100 is provided with a track groove 110, which opens naturally upward. The inner side wall of the track groove 110 is provided with a limiting groove 120, which extends in a direction parallel to the extension direction of the track groove 110, so as not to affect the sliding of the pulley assembly 200 along the track groove 110.
[0032] The pulley assembly 200 includes a base 210, a pulley 220, and a limiting member 230. Both the pulley 220 and the limiting member 230 are mounted on the base 210, which provides the mounting position for them and is used to connect with a glass door, allowing the glass door to move in conjunction with the pulley assembly 200. The glass door opens and closes by sliding relative to the track 100 via the pulley 220. The pulley 220 is rotatably connected to the base 210. At least a portion of the pulley 220 is located in the track groove 110, and the pulley 220 can roll within the track groove 110, making the movement of the glass door smoother. The track groove 110 guides and limits the pulley 220, ensuring that the direction of movement of the pulley assembly 200 is parallel to the extension direction of the track groove 110. The limiting member 230 is inserted into the limiting groove 120.
[0033] Since the limiting groove 120 is located on the inner wall of the track groove 110, when the pulley assembly 200 jumps upward due to abnormal conditions such as upward force, the top wall of the track groove 110 will abut against the limiting member 230, thereby preventing the pulley assembly 200 from jumping upward and preventing it from detaching from the track 100. At the same time, the limiting member 230 is installed on the pulley assembly 200, eliminating the need for additional holes in the glass door and maintaining its integrity. Furthermore, because the limiting member 230 is inserted into the limiting groove 110, its concealment is enhanced, improving the aesthetics of the glass door compared to directly exposed anti-jump nails. During the process of limiting the pulley assembly 200's jump, the limiting member 230 can only scratch the inner surface of the limiting groove 120 of the track 100, without scratching the outer surface of the track 100, ensuring the overall integrity and aesthetics of the track 100.
[0034] In some embodiments, such as Figure 4 and Figure 5 As shown, the pulley assembly also includes a buffer start hook 240 connected to the base 210. A buffer groove 130 is also provided on the top surface of the track 100. The buffer groove 130 is located on one side of the track groove 110, and its extension direction is parallel to that of the track groove 110. This creates conditions for the buffer start hook 240 to move within the track groove 110. A buffer 140 is fixed inside the buffer groove 130. The buffer start hook 240 extends into the buffer groove 130. When the pulley assembly 200 moves to a preset position, the buffer start hook 240 can trigger the buffer 140.
[0035] This embodiment provides a buffer protection for the glass door. When the pulley 220 moves in the track groove 110, the buffer actuation hook 240 also moves in the buffer groove 130. When the glass door is about to close, the buffer actuation hook 240 can trigger the buffer 140. The buffer 140 provides a buffering force to the buffer actuation hook 240, causing the glass door to close slowly, so as to avoid the glass door from shattering due to contact with the door frame or wall.
[0036] In this embodiment, the buffer start hook 240 can be roughly L-shaped, extending laterally to the top of the buffer groove 130 and then vertically downward into the buffer groove 130.
[0037] Furthermore, the limiting member 230 and the buffer start hook 240 are detachably connected. The buffer start hook 240 extends outward a considerable distance, providing more installation space to secure the limiting member 230, eliminating the need to directly fix the limiting member 230 to the base 210. Simultaneously, due to the detachable connection method, the limiting member 230 can be inserted into the limiting groove 120 first, and then fixed together with the buffer start hook 240, facilitating overall assembly and disassembly.
[0038] Furthermore, such as Figure 6 As shown, the limiting member 230 is located below the buffer start hook 240. Both the limiting member 230 and the buffer start hook 240 are provided with through holes 231 extending vertically through themselves. The pulley assembly also includes a screw 261 and a nut 262 fitted onto the screw 261. The screw 261 passes through the through holes 231 in the limiting member 230 and the buffer start hook 240, with the head of the screw 261 located below the limiting member 230 and the nut 262 located above the buffer start hook 240. After tightening the nut 262, the nut 262 and the head of the screw 261 clamp and fix the limiting member 230 in the buffer start hook 240.
[0039] Since the nut 262 is located above the buffer start hook 240, it is not obstructed by the track, making it easy to tighten and thus convenient to fix the limit member 230 and the buffer start hook 240 together.
[0040] In some embodiments, such as Figure 4 and Figure 6 As shown, the limiting member 230 is provided with a positioning protrusion 232, and the base 210 or the buffer start hook 240 is provided with a positioning groove that matches the positioning protrusion 232. The positioning protrusion 232 is inserted into the positioning groove. The limiting member 230 is positioned by the cooperation between the positioning protrusion 232 and the positioning groove, which facilitates the alignment of the through holes of the limiting member 230 and the buffer start hook 240 and makes the assembly of the two convenient.
[0041] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, the base 210 includes a first base 211 and a second base 212 connected to the first base 211. The first base 211 and the second base 212 are located on both sides of the glass door, and are used to clamp the glass door. The pulley 220 and the limiting member 230 are both installed on the side of the first base 211 away from the second base 212.
[0042] The buffer start hook 240 in the above embodiment can be integrally formed with the first base 211 for easy overall assembly.
[0043] Furthermore, a decorative cover 213 is provided on the outer side of the second seat 212. The decorative cover 213 covers the second seat 212, which serves to protect the second seat 212 from dust and enhance its aesthetics.
[0044] In some embodiments, a buffer pad 214 is provided on the side of the first seat 211 near the second seat 212. The buffer pad 214 is placed between the first seat 211 and the glass door to provide buffer protection for the glass door and prevent damage to the glass door.
[0045] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, the pulley assembly also includes a dust cover 250, which covers the pulley 220 and also provides dust protection for the pulley 220.
[0046] Furthermore, the dust cover 250 is provided with a positioning slot 251, from which the buffer start hook 240 of the above embodiment extends so as not to affect the insertion of the buffer start hook 240 into the buffer groove. At the same time, the cooperation between the buffer start hook 240 and the positioning slot 251 can limit the dust cover 250, restricting the dust cover 250 from moving to the left or right.
[0047] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, two pulleys 220 are provided along the extension direction of the track groove 110. The two pulleys 220 provide better support for the base 210, and the entire pulley assembly moves more smoothly along the track groove 110. The buffer start hook 240 is located between the two pulleys 220 to make full use of the space between the two pulleys 220.
[0048] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art will understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined in the appended claims and their equivalents.
Claims
1. A jump preventing pulley structure characterized by: The system includes a pulley assembly and a track. The top surface of the track has a track groove, and the inner sidewall of the track groove has a limiting groove. The extending direction of the limiting groove is parallel to the extending direction of the track groove. The pulley assembly includes a base, a pulley, and a limiting member. The pulley and the limiting member are both mounted on the base. At least a portion of the pulley is located in the track groove, and the pulley can roll in the track groove. The limiting member is inserted into the limiting groove.
2. The jump preventing pulley arrangement of claim 1, wherein: The pulley assembly also includes a buffer start hook connected to the base. The top surface of the track is also provided with a buffer groove, which is located on one side of the track groove and extends in a direction parallel to the extension direction of the track groove. A buffer is fixed in the buffer groove, and the buffer start hook extends into the buffer groove. When the pulley assembly moves to a preset position, the buffer start hook can trigger the buffer.
3. The jump preventing pulley arrangement of claim 2, wherein: The limiting component is detachably connected to the buffer start hook.
4. The anti-jump pulley structure according to claim 3, characterized in that: The limiting member is located below the buffer start hook, and both the limiting member and the buffer start hook are provided with through holes that penetrate themselves in a vertical direction; the pulley assembly also includes a screw and a nut sleeved on the screw, the screw is inserted into the through holes of the limiting member and the buffer start hook, the head of the screw is located below the limiting member, and the nut is located above the buffer start hook.
5. The jump preventing pulley arrangement of claim 2, wherein: The limiting component is provided with a positioning protrusion, and the base or buffer start hook is provided with a positioning groove that matches the positioning protrusion, and the positioning protrusion is embedded in the positioning groove.
6. The jump preventing pulley arrangement according to any one of claims 1-5, characterized in that: The base includes a first base body and a second base body connected to the first base body. The first base body and the second base body are used to clamp the glass door. The pulley and the limiting member are both installed on the side of the first base body away from the second base body.
7. The jump preventing pulley arrangement of claim 6, wherein: The outer side of the second seat is covered with a decorative cover.
8. The jump preventing pulley arrangement of claim 6, wherein: A buffer pad is provided on the side of the first seat body that is close to the second seat body.
9. The jump preventing pulley arrangement of any one of claims 1-5, wherein: The pulley assembly also includes a dust cover that covers the pulley.
10. The jump preventing pulley arrangement of any one of claims 2-5, wherein: Two pulleys are provided along the extension direction of the track groove, and the buffer start hook is located between the two pulleys.