A sliding door pulley set connecting piece

By using shims to connect with pre-drilled hole groups and nut groups of fasteners in the door and window pulley system, the problems of complicated installation and precision in the existing technology are solved, the weight of the glass is evenly transferred and the installation is simplified, and the durability and safety of doors and windows are improved.

CN224496162UActive Publication Date: 2026-07-14SENYING WINDOW IND NANJING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SENYING WINDOW IND NANJING CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-14

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  • Figure CN224496162U_ABST
    Figure CN224496162U_ABST
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Abstract

The application relates to a sliding door pulley set connecting piece in the field of door and window hardware, which comprises a gasket, the gasket is fixed on a lower horizontal frame through a fixing piece, the gasket is located above a heat insulation strip, a group of prefabricated holes are formed in the gasket, a group of nuts are arranged in the group of prefabricated holes, the gasket is bolt-connected with a pulley set in cooperation with the group of prefabricated holes and the group of nuts, and glass is supported on the gasket. The application has the effects of enhancing the stable bearing capacity of a door frame, simplifying installation steps, reducing operation errors and guaranteeing the precision of pulley installation.
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Description

Technical Field

[0001] This application relates to the field of door and window hardware technology, and in particular to a sliding door pulley assembly connector. Background Technology

[0002] my country's existing door and window products include thermally broken aluminum alloy doors and windows, pure wood doors and windows, etc. Because they generally have excellent sealing, heat preservation and heat insulation performance, they effectively isolate outdoor noise and dust, improve living comfort, and are both durable and beautiful. They have been widely used in various building scenarios, from ordinary residences to commercial complexes.

[0003] These types of doors and windows typically consist of a glass door body and a door frame. The glass body usually uses double-glazed glass with superior thermal insulation performance, and the glass is directly assembled and fixed to the door frame. The thermal insulation strip between the glass and the door frame does not come into contact, so the weight of the glass door body is borne by the side structure of the lower horizontal frame. Long-term uneven stress can lead to deformation of the frame.

[0004] Meanwhile, such doors and windows are usually used in conjunction with pulley systems for pushing, but existing pulley systems are mostly installed directly on the frame. On the one hand, the installation steps are cumbersome and require high installation precision.

[0005] In addition, the installation process requires drilling holes in the door frame on-site according to the fixed position of the existing pulley system. This not only increases the installation process and operational difficulty, but also makes it easy for the holes to shift, resulting in improper installation of the pulleys, poor pushing and pulling, or accelerated wear of the track.

[0006] Therefore, in such doors and windows, the weight of the glass is borne only by the side of the door frame, which can easily lead to deformation of the frame over time; the pulley system is directly installed on the door frame, making installation cumbersome; installation requires drilling on-site, which can easily lead to misalignment of the pulleys, causing problems such as poor sliding and track wear. Utility Model Content

[0007] In order to enhance the stable load-bearing capacity of the door frame, simplify the installation steps, reduce operational errors, and ensure accurate installation of the pulleys, this application provides a sliding door pulley assembly connector.

[0008] This application provides a sliding door pulley assembly connector. The technical solution adopted is as follows:

[0009] A sliding door pulley assembly connector includes a gasket, which is fixed to the lower horizontal frame by a fastener. The gasket is located above a heat insulation strip. A pre-drilled hole group is provided on the gasket, and a nut group is provided in the pre-drilled hole group. The gasket is bolted to the pulley assembly through the cooperation of the pre-drilled hole group and the nut group. The glass is supported on the gasket.

[0010] By adopting the above technical solution, when the glass door is supported on the pad, the weight of the glass door is distributed to the pad and the frame. The connection between the pad and the pulley block allows the weight of the glass to be directly transferred to the pulley block, reducing the local pressure of the glass on the side of the door frame and improving the durability of the door and window. At the same time, the pad has pre-drilled holes and matching nuts, so there is no need to measure and drill on site during installation. Just use the matching bolts to tighten the nuts through the mounting holes of the pulley block, which improves installation efficiency, reduces manual operation errors, and ensures assembly accuracy and consistency.

[0011] Optionally, the pre-formed hole group includes at least two single holes and at least one double hole;

[0012] The nut assembly includes a first preset nut and a second preset nut. The first preset nut is fixed in the single hole, and the second preset nut is fixed in the double hole.

[0013] By adopting the above technical solution, various types and specifications of holes can be connected with corresponding bolts according to different pulley block models during installation. There is no need to tap on site or find suitable nuts. The corresponding bolts can be used directly for connection and fixation, reducing installation procedures and improving assembly efficiency and versatility.

[0014] Optionally, the fastener includes a first fixing protrusion and a second fixing protrusion, the first fixing protrusion and the second fixing protrusion are disposed on the back of the gasket, the single hole is opened in the first fixing protrusion, and the double hole is opened in the second fixing protrusion;

[0015] The lower horizontal frame has a first fixing groove and a second fixing groove. The first fixing protrusion is engaged in the first fixing groove, and the second fixing protrusion is engaged in the second fixing groove.

[0016] By adopting the above technical solution, the first fixing protrusion and the second fixing protrusion are precisely matched with the first fixing groove and the second fixing groove respectively and inserted into the corresponding fixing groove, which can be quickly aligned and installed. Moreover, the protrusion is tightly fitted with the fixing groove on all sides to achieve a stable connection, effectively limiting the displacement of the gasket in the lateral, longitudinal and rotational directions, ensuring the stability and reliability of the installation, and preventing the gasket from falling off during transportation or installation.

[0017] Optionally, a reinforcing rib is fixedly connected between two adjacent first fixing protrusions.

[0018] By adopting the above technical solution, the reinforcing rib can distribute the force borne by a single first fixed protrusion to the adjacent first fixed protrusions, which helps to enhance the stability of the first fixed protrusion, prevent the gasket from moving after installation, and prevent the first fixed protrusion from being squeezed and deformed inward, so as to maintain its original shape and positional accuracy, and ensure that the first fixed protrusion is always tightly attached to the wall of the first fixed groove and will not detach from the first fixed groove due to deformation.

[0019] Optionally, the fastener includes an elastic abutment strip, which is fixedly disposed on one side of the gasket and is used to abut against the inner wall of the lower horizontal frame;

[0020] The fastener also includes a snap-fit ​​strip, which is fixedly disposed on the back of the gasket and is used to snap into the groove of the lower horizontal frame.

[0021] By adopting the above technical solution, the snap-fit ​​strip is inserted into the groove to achieve the limiting position. The elastic abutment strip and the snap-fit ​​strip work together to tighten the inner side wall of the lower horizontal frame, so that the gasket is just stuck on the lower horizontal frame, further fixing the gasket. At the same time, the snap-fit ​​strip plays a supporting role in the groove, supporting the gasket to be stable.

[0022] Optionally, the fastener further includes a support strip disposed on the back of the gasket, the first fixing protrusion and the second fixing protrusion being located between the support strip and the snap-fit ​​strip, and the support strip being located on the side of the gasket near the elastic abutment strip.

[0023] By adopting the above technical solution, the support strip provides additional support for the gasket. The support strip and the snap-fit ​​strip form multi-point support, avoiding the problem of the gasket tilting or leaning to one side due to uneven force.

[0024] Optionally, the back of the gasket is provided with several reinforcing ribs.

[0025] By adopting the above technical solutions, the reinforcing ribs can effectively improve the bending and torsional resistance of the gaskets by enhancing their rigidity, thus preventing deformation when bearing the weight of the glass. At the same time, the reinforcing ribs can reduce fatigue damage to the gaskets after long-term use, providing reliable support for the stable bearing of the glass door and the smooth sliding of the doors and windows, thereby improving the overall durability.

[0026] Optionally, the side of the gasket closest to the glass door is provided with anti-slip texture.

[0027] By adopting the above technical solution, the anti-slip texture enhances the friction between the glass door and the gasket, effectively preventing the glass door from sliding or shifting when the door or window is pushed or pulled, ensuring greater stability when the door or window is pushed or pulled, and improving the safety and durability of the door or window.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. When the glass door is supported on the pad, the weight of the glass door is distributed to the pad and the frame. The connection between the pad and the pulley block allows the weight of the glass to be directly transferred to the pulley block, reducing local pressure on the edges of the door frame and improving the durability of the door and window. At the same time, the pad has pre-drilled holes and matching nuts, so there is no need to measure and drill on site during installation. Just use the matching bolts to tighten the nuts through the mounting holes of the pulley block, which improves installation efficiency, reduces human error, and ensures assembly accuracy and consistency.

[0030] 2. During installation, the corresponding bolts can be selected according to different models of pulley blocks, and there is no need to tap on site or find suitable nuts. The corresponding bolts can be used directly for connection and fixation, reducing installation steps and improving assembly efficiency and versatility.

[0031] 3. The first fixed protrusion, the second fixed protrusion, the elastic abutment strip, the snap strip and the support strip form a multi-positioning system, which together fix the gasket, effectively limiting the displacement of the gasket in the lateral, longitudinal and rotational directions, ensuring that the weight of the glass is always evenly transmitted to the pulley block, and ensuring the stability, reliability, safety and durability of the installation.

[0032] 4. Reinforcing ribs are installed between adjacent first fixed protrusions, and reinforcing ribs are installed on the gasket. This helps to enhance the stability of the gasket, effectively improve its bending and torsional resistance, and prevent it from deforming when bearing the weight of the glass. At the same time, the reinforcing ribs and ribs can reduce fatigue damage to the gasket after long-term use. This provides reliable support for the stable load-bearing of the glass door and the smooth sliding of the door and window, improving the overall durability.

[0033] 5. The anti-slip texture enhances the friction between the glass door and the gasket, effectively preventing the glass door from sliding or shifting when the door or window is pushed or pulled, ensuring greater stability when the door or window is pushed or pulled, and improving the safety and durability of the door or window. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0035] Figure 2 This is a structural schematic diagram illustrating the front of the gasket in an embodiment of this application.

[0036] Figure 3 This is a schematic diagram illustrating the structure of the back of the gasket in an embodiment of this application.

[0037] Figure 4 This is a schematic diagram illustrating the structure of the first fixing groove and the second fixing groove in an embodiment of this application.

[0038] Figure 5 This is a schematic diagram illustrating the structure of the gasket in Embodiment 2 of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Gasket; 11. Pre-drilled hole group; 111. Single hole; 112. Double hole; 2. Fastener; 21. First fixing protrusion; 22. Second fixing protrusion; 23. Elastic abutment strip; 24. Snap-fit ​​strip; 25. Support strip; 3. Nut group; 31. First preset nut; 32. Second preset nut; 4. First fixing groove; 5. Second fixing groove; 6. Reinforcing rib; 7. Reinforcing rib; 8. Anti-slip texture. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0041] This application discloses a sliding door pulley assembly connector.

[0042] like Figure 1 , Figure 2 and Figure 3 The sliding door pulley assembly connector includes a washer 1, which is fixed to the lower horizontal frame by a fastener 2. The washer 1 has a pre-drilled hole group 11, which includes at least two single holes 111 and at least one double hole 112. A nut group 3 is disposed within the pre-drilled hole group 11, which includes a first preset nut 31 and a second preset nut 32. The first preset nut 31 is located within the single hole 111, and the second preset nut 32 is located within the double hole 112.

[0043] In this embodiment of the application, the pre-made hole group 11 includes four single holes 111 and one double hole 112. The four single holes 111 and the double hole 112 are arranged together along the length direction of the gasket 1, and the four single holes 111 and the double hole 112 are located on the same horizontal line parallel to the gasket 1. The double hole 112 is symmetrically arranged about the center line of the length direction of the gasket 1. The four single holes 111 are grouped in pairs, and the two single holes 111 in the same group are symmetrically distributed about the double hole 112.

[0044] The first preset nut 31 is a press-fit nut, which is located inside the single hole 111. The second preset nut 32 is an embedded nut, which is located inside the double hole 112.

[0045] like Figure 3 and Figure 4The fastener 2 includes four first fixing protrusions 21 and one second fixing protrusion 22. The four first fixing protrusions 21 are disposed on the back of the gasket 1. Each first fixing protrusion 21 corresponds to a single hole 111, and the single hole 111 passes through the corresponding first fixing protrusion 21. The second fixing protrusion 22 is located on the back of the gasket 1, and the double hole 112 passes through the second fixing protrusion 22. The first fixing protrusion 21 and the second fixing protrusion 22 are both rounded cuboids. A reinforcing rib 6 is provided between two adjacent first fixing protrusions 21. The two adjacent first fixing protrusions 21 and the reinforcing rib 6 are integrally formed. There are two reinforcing ribs 6 between two adjacent first fixing protrusions 21, and the two reinforcing ribs 6 are parallel to each other.

[0046] Two first fixing grooves 4 and one second fixing groove 5 are provided on the lower horizontal frame. The two first fixing grooves 4 and one second fixing groove 5 are provided on the lower horizontal frame and the heat insulation strip. The two first fixing grooves 4 and one second fixing groove 5 pass through the upper heat insulation strip and the profile frame. The lower heat insulation strip is provided with bolt connection holes corresponding to the single hole 111 and the double hole 112. The shape of the first fixing groove 4 and the second fixing groove 5 is a rounded square. The length of the first fixing groove 4 is equal to the sum of the lengths of the two first fixing protrusions 21 and the reinforcing ribs 6. The two first fixing protrusions 21 and the reinforcing ribs 6 connected between them are inserted into the first fixing groove 4 and fit tightly. The first fixing protrusions 21 correspond one-to-one with the first fixing grooves 4. The second fixing protrusions 22 are inserted into the second fixing grooves 5. The second fixing protrusions 22 fit tightly with the second fixing grooves 5 on all sides. Thus, the gasket 1 is supported on the lower horizontal frame and located above the heat insulation strip.

[0047] The fastener 2 also includes two elastic abutment strips 23. The two elastic abutment strips 23 are located on one side of the gasket 1 and are integrally formed. The two elastic abutment strips 23 are symmetrical about the center line of the length direction of the gasket 1. The two elastic abutment strips 23 are arc-shaped strips. The two elastic abutment strips 23 extend away from the center line of the length direction of the gasket 1. When the gasket 1 is installed on the lower horizontal frame, the elastic abutment strips 23 abut against the inner frame wall of the lower horizontal frame.

[0048] The fastener 2 also includes a snap-fit ​​strip 24, which is located on the back of the gasket 1 and on the side of the gasket 1 away from the elastic abutment strip 23. The length of the snap-fit ​​strip 24 is equal to the length of the gasket 1, and the snap-fit ​​strip 24 is snapped into the groove of the lower horizontal frame.

[0049] The fastener 2 also includes a support strip 25, which is located on the back of the gasket 1. The support strip 25 is located on the side of the gasket 1 near the elastic abutment strip 23. The support strip 25 is parallel to the snap-fit ​​strip 24 and has the same length. The first fixing protrusion 21 and the second fixing protrusion 22 are located between the support strip 25 and the snap-fit ​​strip 24.

[0050] The back of the gasket 1 is also provided with several reinforcing ribs 7, which are located between the support strip 25 and the snap-fit ​​strip 24. The reinforcing ribs 7 are vertically intersected to form a grid.

[0051] In other embodiments, the number of single holes 111 can be six or other numbers, and the number of double holes 112 can be three or other numbers. The positional relationship between the single holes 111 and the double holes 112 can be other ways, corresponding to the connection holes of different pulley groups. The nut group 3 can include hexagonal press-fit nuts or other types of nuts. The shape of the first fixing protrusion 21 and the second fixing protrusion 22 can be cylindrical or other shapes. The number of reinforcing ribs 6 between two adjacent first fixing protrusions 21 can be three or other numbers. The shape of the first fixing groove 4 and the second fixing groove 5 can be circular or other shapes that can be adapted to the first fixing protrusion 21 and the second fixing protrusion 22.

[0052] The number of elastic abutment strips 23 can be one or other quantities. The shape of the elastic abutment strips 23 can be an arc or other shapes. The elastic abutment strips 23 can also be located at other positions on the side of the gasket 1. The snap-fit ​​strip 24 can be divided into multiple segments, and the support strip 25 can also be multi-segmented. The snap-fit ​​strip 24 and the support strip 25 can not be parallel, and the support strip 25 can be located at other positions close to the elastic abutment strip 23. The reinforcing ribs 7 can be arranged at any position on the back of the gasket 1, and several reinforcing ribs 7 can be arranged in any cross pattern.

[0053] The implementation principle of this application embodiment is as follows: When the glass door is supported on the pad 1, the weight of the glass door is distributed to the pad 1 and the frame. The connection between the pad 1 and the pulley assembly allows the weight of the glass to be directly transferred to the pulley assembly, reducing the local pressure of the glass on the side of the door frame. At the same time, the pad 1 has pre-drilled holes 11 and matching nuts 3, so there is no need to measure and drill on-site during installation. During installation, depending on the model of the pulley assembly, only the matching bolts need to be passed through the mounting holes of the pulley assembly and tightened to the nuts 3, without the need for on-site tapping or finding matching nuts. In addition, The first fixed protrusion 21, the second fixed protrusion 22, the elastic abutment strip 23, the snap strip 24, and the support strip 25 form a multi-positioning system, which together fixes the gasket 1, effectively limiting the displacement of the gasket 1 in the lateral, longitudinal, and rotational directions, and ensuring that the weight of the glass is always evenly transmitted to the pulley block. The reinforcing rib 6 and the reinforcing rib 7 on the gasket 1 help to enhance the stability of the gasket 1, effectively improve the bending and torsional resistance of the gasket 1, prevent it from deforming when bearing the weight of the glass, enhance the stable load-bearing capacity of the door frame, simplify the installation steps, and enhance durability.

[0054] Example 2

[0055] Reference Figure 5The difference between this embodiment and embodiment 1 is that the side of the gasket 1 closest to the glass door is provided with anti-slip texture 8.

[0056] The implementation principle of Example 2 is as follows: the anti-slip texture 8 enhances the friction between the glass door and the gasket 1, effectively preventing the glass door from sliding and shifting when the door and window are pushed and pulled, ensuring greater stability when the door and window are pushed and pulled, and improving the safety and durability of the door and window.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sliding door pulley assembly connector, characterized in that: Includes a gasket (1), which is fixed to the lower horizontal frame by a fastener (2). The gasket (1) is located above the heat insulation strip. A pre-drilled hole group (11) is provided on the gasket (1). A nut group (3) is provided in the pre-drilled hole group (11). The gasket (1) is bolted to the pulley group through the cooperation of the pre-drilled hole group (11) and the nut group (3). The glass is supported on the gasket (1).

2. The sliding door pulley assembly connector according to claim 1, characterized in that: The pre-formed hole group (11) includes at least two single holes (111) and at least one double hole (112); The nut assembly (3) includes a first preset nut (31) and a second preset nut (32). The first preset nut (31) is fixed in the single hole (111), and the second preset nut (32) is fixed in the double hole (112).

3. The sliding door pulley assembly connector according to claim 2, characterized in that: The fastener (2) includes a first fixing protrusion (21) and a second fixing protrusion (22). The first fixing protrusion (21) and the second fixing protrusion (22) are disposed on the back side of the gasket (1). The single hole (111) is opened in the first fixing protrusion (21), and the double hole (112) is opened in the second fixing protrusion (22). The lower horizontal frame is provided with a first fixing groove (4) and a second fixing groove (5). The first fixing protrusion (21) is engaged in the first fixing groove (4), and the second fixing protrusion (22) is engaged in the second fixing groove (5).

4. The sliding door pulley assembly connector according to claim 3, characterized in that: A reinforcing rib (6) is fixedly connected between two adjacent first fixed protrusions (21).

5. The sliding door pulley assembly connector according to claim 3, characterized in that: The fastener (2) includes an elastic abutment strip (23), which is fixedly disposed on one side of the gasket (1) and is used to abut against the inner wall of the lower horizontal frame. The fastener (2) also includes a snap-fit ​​strip (24), which is fixedly disposed on the back of the gasket (1) and is used to snap into the groove of the lower horizontal frame.

6. The sliding door pulley assembly connector according to claim 5, characterized in that: The fastener (2) further includes a support strip (25), which is disposed on the back of the gasket (1). The first fixing protrusion (21) and the second fixing protrusion (22) are located between the support strip (25) and the snap-fit ​​strip (24). The support strip (25) is located on the side of the gasket (1) near the elastic abutment strip (23).

7. The sliding door pulley assembly connector according to claim 1, characterized in that: The back of the gasket (1) is provided with several reinforcing ribs (7).

8. The sliding door pulley assembly connector according to claim 1, characterized in that: The gasket (1) has anti-slip texture (8) on the side near the glass door.