An adjustable door and window pulley structure

Abstract

This utility model discloses an adjustable door and window pulley structure, relating to the field of door and window technology. It includes a long, narrow housing with a hollow inner cavity. Within the hollow inner cavity is at least one pulley module. Each pulley module comprises two detachably connected fixed shells, each containing a rotatable pulley. The opposing sides of the two fixed shells each have a guide slope inclined relative to the fixed shell, and each guide slope has an inclined guide groove recessed within it. At both ends of the hollow inner cavity are inclined guide members that can enter the guide grooves. Either guide member is movable, and the housing at the end of the housing near the guide member is also provided with an adjusting member for pressing against the guide member to allow the pulley module to protrude or retract from the housing. This utility model allows for flexible adjustment of the pulley module's extension distance, solving the problems of installation failure or friction, jamming, and noise after installation when the track is uneven.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to an adjustable door and window pulley structure. Background Technology

[0002] With the development of modern architecture and home decoration industries, the design and application of door and window systems are increasingly emphasizing aesthetics, practicality, and comfort. As an important component of door and window structures, the sliding system plays a crucial role. Most existing door and window sliding systems adopt a pulley and track structure, where pulleys slide on the track to open and close the doors and windows. The structure generally consists of components such as pulleys, tracks, outer shells, and fixed shells. The pulleys are usually fixed inside the outer shell, and the sliding movement of the doors and windows is completed by the support and guidance of the track.

[0003] However, existing sliding door and window systems still have some drawbacks, especially when the track surface is uneven. Specifically, since pulleys are usually fixed by directly installing them inside the casing, and the casing's fixing structure often lacks sufficient adjustment space, uneven or worn track surfaces during installation can cause problems such as pulley jamming, abnormal noise, and excessive friction, affecting the normal use of doors and windows and even shortening the system's lifespan. This not only reduces the user experience of the door and window system but also increases maintenance costs. Furthermore, existing door and window pulley adjustment methods mostly rely on external structures for adjustment, and the adjustment range and precision are limited by design. It is impossible to precisely adjust the vertical and horizontal positions of the pulleys without disassembly, leading to inconvenient operation during adjustment and a large workload for maintenance.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0005] This utility model provides an adjustable door and window pulley structure, which aims to solve the problems of poor adaptability and inconvenient adjustment of existing pulley structures.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An adjustable door and window pulley structure includes an elongated housing with a hollow inner cavity. At least one pulley module is located within the hollow inner cavity. Each pulley module includes two detachably connected fixed shells. Each fixed shell contains a rotatable pulley. The opposing sides of the two fixed shells each have a guide slope inclined relative to the fixed shells. Each guide slope has an inclined guide groove recessed within it. Guide members are inclinedly arranged at both ends of the hollow inner cavity and can enter the guide grooves. Any one of the guide members is movable. The housing at one end of the guide member also has an adjusting member for pressing against the guide member to allow the pulley module to protrude from or retract into the housing.

[0008] Furthermore, there are two pulley modules, and a spacer is provided between the two pulley modules. The left and right sides of the spacer are respectively provided with inclined protrusions that can enter the guide groove. The front and rear sides of the spacer are provided with first limiting protrusions, and the corresponding position of the housing is provided with a first limiting groove for the first limiting protrusions to enter.

[0009] Furthermore, the length of the first limiting groove is greater than the length of the first limiting protrusion.

[0010] Furthermore, the aforementioned guide groove is dovetail-shaped, and the shape of the aforementioned inclined protrusion is adapted to the aforementioned guide groove.

[0011] Furthermore, the two aforementioned fixed shells have protrusions and grooves on their opposing sides for convex-concave mating.

[0012] Furthermore, the aforementioned guide member is a guide block with an inclined surface, and the inclined surface of the guide block is provided with a guide protrusion for entering the aforementioned guide groove.

[0013] Furthermore, the aforementioned guide member is an inclined guide protrusion, one of which is fixedly connected to one end of the aforementioned hollow inner cavity, and the other guide protrusion is connected to a movable guide block.

[0014] Furthermore, the guide block is provided with second limiting protrusions on its front and rear sides, and the corresponding position of the housing is provided with a second limiting groove for the second limiting protrusions to enter. The length of the second limiting groove is greater than the length of the second limiting protrusions.

[0015] Furthermore, taking the length direction of the aforementioned housing as the left-right direction, a through-hole is provided on the right side wall of the aforementioned housing, a slot is provided on the right side of the aforementioned adjustment hole, a mounting wall is provided in the aforementioned slot, a receiving groove is provided between the aforementioned mounting wall and the right side wall of the aforementioned housing, and a mounting groove for mounting the aforementioned adjustment member is recessed on the top surface of the aforementioned mounting wall; the aforementioned adjustment member includes a screw provided in the aforementioned mounting groove and a nut provided in the aforementioned receiving groove, the aforementioned screw passes through the aforementioned nut and the aforementioned adjustment hole in sequence and abuts against the side wall of the aforementioned guide member.

[0016] Furthermore, the shell has connection holes at both ends, and each connection hole is equipped with a connector for locking with doors and windows.

[0017] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:

[0018] Firstly, the hollow inner cavity of the housing of this utility model is equipped with a pulley module. The pulley module consists of two detachably connected fixed shells. Each fixed shell contains a rotatable pulley. The back of the fixed shell is provided with an inclined guide slope and a guide groove. Both ends of the hollow inner cavity are provided with guide members that can enter the guide groove. One of the guide members is movable, and one end of the housing is provided with an adjustment member for adjusting the protrusion or retraction of the pulley module. Through this adjustable pulley module design, the extension distance of the pulley module can be flexibly adjusted according to the height of the track and different installation environments. This solves the problems of not being able to install on uneven tracks or the occurrence of friction, jamming, and noise after installation. It ensures that the pulley module runs smoothly under various conditions, improves the stability and durability of the pulley system, extends its service life, and reduces maintenance requirements.

[0019] Secondly, the pulley module of this utility model adopts a modular design, which allows for quick disassembly and replacement of new parts when the pulley module is damaged or malfunctions, significantly improving the efficiency of installation and maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a top view of the present invention.

[0022] Figure 3 This is the left view of the present invention.

[0023] Figure 4 This is a cross-sectional view of the present invention.

[0024] Figure 5 This is a three-dimensional assembly drawing of the present invention.

[0025] Figure 6This is a three-dimensional assembly drawing of the pulley module of this utility model.

[0026] Figure 7 This is a schematic diagram of the spacer of this utility model.

[0027] Figure 8 This is a schematic diagram of the structure of the guide component of this utility model.

[0028] Reference numerals: 10-Housing shell; 11-Hollow inner cavity; 12-First limiting groove; 13-Second limiting groove; 14-Adjusting hole; 15-Slot; 16-Mounting wall; 161-Mounting groove; 17-Accommodating groove; 18-Connecting hole; 20-Pulley module; 21-Fixed shell; 211-Protrusion; 212-Groove; 22-Pulley; 23-Guide slope; 231-Guide groove; 31-Guide block; 32-Inclined slope; 33-Guide protrusion; 34-Second limiting protrusion; 40-Adjusting component; 41-Screw; 42-Nut; 50-Spacer; 51-Inclined protrusion; 52-First limiting protrusion. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] Reference Figures 1 to 5 An adjustable door and window pulley structure includes a long strip-shaped shell 10, a hollow inner cavity 11 inside the shell 10, and at least one pulley module 20 arranged along the length of the shell 10 inside the hollow inner cavity 11. The pulley module 20 includes two fixed shells 21 that are detachably connected to each other. Each fixed shell 21 is provided with a rotatable pulley 22. The opposite sides of the two fixed shells 21 are provided with guide slopes 23 that are inclined relative to the fixed shells 21. Each guide slope 23 is recessed with an inclined guide groove 231. The hollow inner cavity 11 has guide members at both ends that are inclined and can enter the guide groove 231. Any one of the guide members can be moved. The housing 10 is also provided with an adjustment member 40 at one end of the guide member to press against the guide member so that the pulley module 20 protrudes or retracts into the housing 10. During use, by adjusting the adjustment member 40, the pulley module 20 can be protruded or retracted in the housing 10 as needed, so that the pulley 22 of the door and window can be flexibly adjusted to adapt to uneven tracks or different installation environments.

[0031] Reference Figures 1 to 7There are two pulley modules 20, and an isosceles triangular spacer 50 is provided between the two pulley modules 20. Inclined protrusions 51, which can enter guide grooves 231, are respectively provided on the left and right sides of the spacer 50. First limiting protrusions 52 are provided on the front and rear sides of the spacer 51. A first limiting groove 12 is recessed at a corresponding position in the housing 10 for the first limiting protrusions 52 to enter. The length of the first limiting groove 12 is greater than the length of the first limiting protrusions 52, allowing the spacer 50 to be positioned within the housing 10. This allows for more stable displacement and prevents the spaced 50 pieces from detaching from the housing 10. In addition, the two fixed housings 21 have protrusions 211 and grooves 212 on their opposing sides for a convex-concave fit, thereby ensuring a firm fit of the pulley module 20 during assembly and preventing loosening or misalignment during use. Furthermore, since the pulley module 20 adopts a detachable modular design, when a single component of the pulley module 20 is damaged or malfunctions, it can be quickly disassembled and replaced with a new component, significantly improving the efficiency of installation and maintenance.

[0032] Reference Figures 1 to 8 The guide groove 231 is dovetail shaped, and the shapes of the guide protrusion 33 and the inclined protrusion 51 are adapted to the guide groove 231. With this setting, the fixed shell 21 can be prevented from moving laterally during the adjustment process, and the situation of detachment or misalignment can also be avoided.

[0033] Reference Figures 1 to 8 In the first embodiment, the guide is a guide block 31 with an inclined surface. The inclined surface 32 of the guide block 31 is provided with a guide protrusion 33 for entering the guide groove 231. One of the guide blocks 31 is fixedly connected to the housing 10, and the other guide block 31 can move within the hollow cavity 11 of the housing 10. In use, the user can move the position of the guide block 31 to make the pulley module 20 protrude or retract into the housing 10, and then fix the guide block 31 and the pulley module 20 by the adjusting member 40, so as to adapt to different installation environments.

[0034] Reference Figures 1 to 8 In the second embodiment, the guide is an inclined guide protrusion 33, one of which is integrally formed with the housing 10, and the other guide protrusion 33 is connected to a movable guide block 31. The guide block 31 is trapezoidal, and its side facing the guide block 31 is provided with an inclined surface 32. The guide protrusion 33 is disposed on the inclined surface 32. In this way, when in use, since one of the guide protrusions 33 is integrally formed with the housing 10, the overall structure is more compact and stable, avoiding possible loosening or displacement problems and ensuring high stability during long-term use.

[0035] Reference Figures 1 to 8The guide block 31 has a second limiting protrusion 34 protruding on its front and rear sides, and the housing 10 has a second limiting groove 13 for the second limiting protrusion 34 to enter at the corresponding position. The length of the second limiting groove 13 is greater than the length of the second limiting protrusion 34. With this setting, the guide block 31 can make more stable displacement within the housing 10, and can also effectively prevent the guide block 31 from detaching from the housing 10.

[0036] Reference Figures 1 to 8 With the length direction of the housing 10 as the left-right direction, the right side wall of the housing 10 has a through-hole adjustment hole 14. The right side of the adjustment hole 14 has a slot 15, and the slot 15 has a mounting wall 16. There is a receiving groove 17 between the mounting wall 16 and the right side wall of the housing 10. The top surface of the mounting wall 16 is recessed with a mounting groove 161 for setting the adjustment member 40. The adjustment member 40 includes a screw 41 set in the mounting groove 161 and a nut 42 set in the receiving groove 17. The screw 41 passes through the nut 42 and the adjustment hole 14 in sequence and abuts against the side wall of the guide member. The two ends of the housing 10 have connection holes 18. Each connection hole 18 is provided with a connector (not shown in the figure) for locking with a door or window. In this embodiment, the connector is a screw.

[0037] When using it, first adjust the distance of the pulley module 20 extending out of the housing 10 according to the installation environment, then tighten the screw 41 to ensure that the end of the screw 41 is in close contact with the side wall of the guide block 31, so that the pulley module 20 is fixed. Then fix the housing 10 to the bottom of the door or window through the connector, and finally put the pulley module 20 into the track to complete the installation.

[0038] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. An adjustable door and window pulley structure, characterized in that: The device includes a long, narrow housing with a hollow inner cavity. At least one pulley module is located within the hollow inner cavity. Each pulley module comprises two detachably connected fixed shells, each containing a rotatable pulley. The opposing sides of the two fixed shells each have a guide slope inclined relative to the fixed shells, and each guide slope has an inclined guide groove recessed within it. At both ends of the hollow inner cavity are inclined guide members that can enter the guide grooves. Either guide member is movable, and the housing at the end of the housing located near the guide member is also provided with an adjusting member for pressing against the guide member to allow the pulley module to protrude from or retract into the housing.

2. The adjustable door and window pulley structure according to claim 1, characterized in that: The pulley module consists of two parts, with a spacer between them. The spacer has inclined protrusions on its left and right sides that can enter the guide groove, and first limiting protrusions on its front and rear sides. The housing has a corresponding first limiting groove for the first limiting protrusions to enter.

3. The adjustable door and window pulley structure according to claim 2, characterized in that: The length of the first limiting groove is greater than the length of the first limiting protrusion.

4. The adjustable door and window pulley structure according to claim 2, characterized in that: The guide groove is dovetail-shaped, and the shape of the inclined protrusion is adapted to the guide groove.

5. The adjustable door and window pulley structure according to claim 1, characterized in that: The two fixed shells have protrusions and grooves on their opposite sides for convex-concave mating.

6. The adjustable door and window pulley structure according to claim 1, characterized in that: The guide is a guide block with an inclined surface, and the inclined surface of the guide block is provided with a guide protrusion for entering the guide groove.

7. The adjustable door and window pulley structure according to claim 1, characterized in that: The guide component is an inclined guide protrusion, one of which is fixedly connected to one end of the hollow inner cavity, and the other guide protrusion is connected to a movable guide block.

8. The adjustable door and window pulley structure according to claim 6 or 7, characterized in that: The guide block has a second limiting protrusion on its front and rear sides, and the corresponding position of the housing has a second limiting groove for the second limiting protrusion to enter. The length of the second limiting groove is greater than the length of the second limiting protrusion.

9. The adjustable door and window pulley structure according to claim 1, characterized in that: With the length direction of the housing as the left-right direction, the right side wall of the housing has a through-hole adjustment hole, the right side of the adjustment hole has a slot, the slot has a mounting wall, the mounting wall and the right side wall of the housing have a receiving groove, and the top surface of the mounting wall has a recessed mounting groove for mounting the adjustment component; the adjustment component includes a screw set in the mounting groove and a nut set in the receiving groove, the screw passes through the nut and the adjustment hole in sequence and abuts against the side wall of the guide component.

10. The adjustable door and window pulley structure according to claim 1, characterized in that: The housing has connection holes at both ends, and each connection hole is equipped with a connector for locking with doors and windows.

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