Adjustable heavy duty sliding door track reinforcement bracket
By designing an adjustable heavy-duty sliding door guide rail reinforcement bracket, and utilizing a worm gear mechanism and a limiting structure, the problem of the limited applicability of sliding door guide rails was solved, enabling stable movement and convenient installation of sliding doors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YOUSHENG ALUMINUM CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-14
AI Technical Summary
Existing sliding door guide rail brackets are difficult to adapt to sliding door accessories of different sizes, thus limiting their applicability.
An adjustable heavy-duty sliding door guide rail reinforcement bracket was designed. The position adjustment and stabilization of the rollers are achieved through a worm gear mechanism and a limiting structure. Combined with the limiting functions of the plug rod and the stop block, the stable movement of the sliding door is ensured.
The position of the sliding door rollers is adjustable to prevent the sliding door from tilting, ensuring sliding stability and convenient installation and disassembly.
Smart Images
Figure CN224496169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door guide rail technology, specifically an adjustable heavy-duty sliding door guide rail reinforcing bracket. Background Technology
[0002] Sliding doors are often used with tracks. The door panels have a certain load-bearing capacity, which helps to maintain the stability of the door panels when sliding. The bottom track is embedded in the ground gap and supported by brackets on both sides, or integrated into the brackets. The reserved gap allows the sliding door panel rollers to move along it.
[0003] To avoid friction between the rollers at the bottom of the sliding door and the track, the internal chambers of the bracket are specially customized according to the specifications of the rollers. It is difficult to adjust them according to the size of different sliding door accessories. If it can only be used for a single type of sliding door, the applicable range of the bracket is greatly reduced.
[0004] Now, a novel adjustable heavy-duty sliding door guide rail reinforcement bracket is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable heavy-duty sliding door guide rail reinforcement bracket to solve the problem of limited guide rail distance mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable heavy-duty sliding door guide rail reinforcement bracket, comprising a bracket body, a track arranged between the front and back of the upper center of the bracket body, a sliding door arranged above the bracket body, and limit strips fixed between the front and back of the bottom sides of the sliding door, grooves arranged between the front and back of the top sides of the bracket body, a slot arranged at the lower part of the sliding door, a frame fixed between the two sides of the slot, and rollers movably connected between the left and right sides of the frame, the front end of the track being connected to... The rear end is provided with movable slots, and a transmission chamber is provided on the left side of the movable slot. A worm gear is movably connected between the left and right sides of the upper part of the transmission chamber, and a worm is movably connected between the front and rear sides of the lower part of the transmission chamber. A knob is movably connected to the lower part of the center of the front and rear ends of the bracket body. A lead screw is movably connected between the left and right sides inside the movable slot, and threaded sleeves are threaded to both sides of the lead screw. A push plate is fixed between the tops of the front and rear threaded sleeves, and two steel balls are movably embedded in the front and rear sides of the push plate. A rectangular slot is provided on the lower side of the track.
[0007] As a further technical solution of this utility model, the end of the knob is fixedly connected to the worm gear, and the right side of the worm wheel is fixedly connected to the lead screw.
[0008] As a further technical solution of this utility model, vertical grooves are respectively provided above the two sides of the track, and a limit frame is fixed between the front and rear of the lower part of the vertical groove. Insert rods are fixedly inserted into both sides of the frame.
[0009] As a further technical solution of this utility model, the outer side of the insertion rod is embedded in the limiting frame, and the insertion rod moves back and forth along the inner wall of the limiting frame.
[0010] As a further technical solution of this utility model, slots are respectively provided on the lower sides of both sides of the bracket body, and a limit rod is fixed between the front and rear sides of the inner side of the slot. A stop block is movably sleeved on the outside of the limit rod, and a sliding groove is provided between the upper and lower sides inside the stop block. A steel ball is movably embedded on the outer side of the stop block. Bolts are threadedly connected to both sides of the front end of the bracket body, and a screw hole is provided on the surface of the stop block.
[0011] As a further technical solution of this utility model, the bolt shank is embedded in the bolt hole, and the limiting rod is embedded in the sliding groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the adjustable heavy-duty sliding door guide rail reinforcement bracket not only realizes the movement of the auxiliary sliding door rollers and prevents the rollers from tilting, but also realizes the sliding of the door panel from both sides.
[0013] (1) By inserting steel balls two into the front and back of the side of the push plate, insert the roller at the bottom of the sliding door into the track, hold the knob at the front and back of the bracket body, rotate the worm gear through the knob, guide the worm gear to mesh and push the upper worm wheel, facilitate the worm wheel to rotate the screw, guide the threaded sleeves on both sides to adjust the position of the upper push plate along the movable groove, force the side of the steel ball two to contact the roller, and the auxiliary distance can be adjusted.
[0014] (2) By fixing and inserting the plug rods on both sides of the frame, the plug rods are inserted into the surface of the frame on both sides of the roller. When the roller is in contact with the inner wall of the track and moves back and forth, the outer side of the plug rod is embedded in the limit frame and slides synchronously along its inner wall. This can limit the movement trajectory of the rollers at the bottom of the sliding door, prevent the sliding door from tilting when it slides in contact with the ground, and the structure is easy to install or disassemble.
[0015] (3) By moving the stop block outside the limit rod, the stop block is pulled out from the slots on both sides. At this time, the slide groove at the center of the stop block is sleeved outside the limit rod. Then adjust the orientation of the stop block so that it fits longitudinally against the outside of the slot. The steel ball on the surface fits against the surface of the limit strip on both sides of the bottom of the sliding door. Then screw the bolt into the aligned screw hole to lock it. The sliding door can be restricted from both sides of the bracket body and its sliding can be assisted. Attached Figure Description
[0016] Figure 1This is a frontal cross-sectional view of the present invention.
[0017] Figure 2 This is a front view cross-sectional structural diagram of the track of this utility model;
[0018] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;
[0019] Figure 4 This is a front view cross-sectional structural diagram of the groove of this utility model.
[0020] In the diagram: 1. Bracket body; 2. Slot; 3. Knob; 4. Transmission chamber; 5. Threaded sleeve; 6. Movable groove; 7. Lead screw; 8. Stop block; 9. Limiting rod; 10. Slide groove; 11. Steel ball one; 12. Limiting strip; 13. Sliding door; 14. Slot; 15. Roller; 16. Groove; 17. Bolt; 18. Worm gear; 19. Worm wheel; 20. Rectangular groove; 21. Push plate; 22. Steel ball two; 23. Track; 24. Limiting frame; 25. Vertical groove; 26. Insert rod; 27. Frame; 28. Screw hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4This utility model provides an embodiment of an adjustable heavy-duty sliding door guide rail reinforcement bracket, comprising a bracket body 1, a track 23 arranged between the front and back of the upper part of the center of the bracket body 1, a sliding door 13 arranged above the bracket body 1, and limit strips 12 fixed between the front and back of the bottom sides of the sliding door 13, grooves 16 arranged between the front and back of the top sides of the bracket body 1, a slot 14 arranged at the lower part of the interior of the sliding door 13, a frame 27 fixed between the two sides of the interior of the slot 14, and rollers 15 movably connected between the left and right sides of the interior of the frame 27, and movable grooves 6 arranged at the front and rear ends of the track 23, and the movable grooves 6... A transmission chamber 4 is provided on the left side. A worm gear 19 is movably connected between the upper left and right sides inside the transmission chamber 4. A worm 18 is movably connected between the lower front and rear sides inside the transmission chamber 4. A knob 3 is movably connected to the lower center of the front and rear ends of the bracket body 1. A lead screw 7 is movably connected between the left and right sides inside the movable groove 6. Threaded sleeves 5 are threadedly connected to both sides of the lead screw 7. A push plate 21 is fixed between the tops of the front and rear threaded sleeves 5. Steel balls 22 are movably embedded in the front and rear sides of the push plate 21. A rectangular groove 20 is provided on the lower side of the track 23. The end of the knob 3 is fixedly connected to the worm 18. The right side of the worm gear 19 is fixedly connected to the lead screw 7.
[0023] Specifically, such as Figure 1 and Figure 2 As shown, insert the roller 15 at the bottom of the sliding door 13 into the track 23, hold the knob 3 at the front and back of the bracket body 1 respectively, rotate the worm gear 18 through the knob 3, guide the worm gear 18 to engage and push the upper worm wheel 19, so that the worm wheel 19 can rotate the screw 7, guide the threaded sleeves 5 on both sides to adjust the position of the upper push plate 21 along the movable groove 6 respectively, and force the side of the steel ball 22 to contact the roller 15 to assist its rolling.
[0024] Vertical grooves 25 are provided on the upper sides of both sides of the track 23, and a limiting frame 24 is fixed between the front and back of the lower part of the vertical groove 25. Insert rods 26 are fixedly inserted on both sides of the frame 27. The outer side of the insert rod 26 is embedded in the limiting frame 24, and the insert rod 26 moves back and forth along the inner wall of the limiting frame 24.
[0025] Specifically, such as Figure 1 and Figure 3 As shown, the insert rods 26 are respectively inserted into the surfaces of the frame 27 on both sides of the roller 15. When the roller 15 is in contact with the inner wall of the track 23 and moves back and forth, the outer side of the insert rod 26 is embedded in the limiting frame 24 and slides synchronously along its inner wall. This can limit the movement trajectory of the rollers 15 at the bottom of the sliding door 13, prevent the sliding door 13 from tilting when sliding in contact with the ground, and ensure the stability of the sliding door 13 when it moves.
[0026] Slots 2 are provided on the lower sides of both sides of the bracket body 1, and a limit rod 9 is fixed between the front and rear sides of the inner side of the slot 2. A stop block 8 is movably sleeved on the outside of the limit rod 9, and a sliding groove 10 is provided between the upper and lower sides of the inside of the stop block 8. A steel ball 11 is movably embedded on the outer side of the stop block 8. Bolts 17 are threadedly connected to both sides of the front end of the bracket body 1. A screw hole 28 is provided on the surface of the stop block 8. The rod of the bolt 17 is embedded in the screw hole 28, and the limit rod 9 is embedded in the sliding groove 10.
[0027] Specifically, such as Figure 1 and Figure 4 As shown, the stop block 8 is pulled out from the slots 2 on both sides. At this time, the slide groove 10 at the center of the stop block 8 is sleeved outside the limit rod 9. Then adjust the orientation of the stop block 8 so that it fits longitudinally against the outside of the slot 2. The steel ball 11 on the surface fits against the surface of the limit strips 12 on both sides of the bottom of the sliding door 13. The bolt 17 is screwed into the screw hole 28 to lock it, and the movement of the sliding door 13 is limited from both sides.
[0028] Working principle: When using this utility model, firstly, the insert rods 26 are respectively inserted into the surfaces of the frame 27 on both sides of the roller 15. When the roller 15 is in contact with the inner wall of the track 23 and moves back and forth, the outer side of the insert rod 26 is embedded in the limiting frame 24 and slides synchronously along its inner wall. This can limit the movement trajectory of the rollers 15 at the bottom of the sliding door 13 and prevent the sliding door 13 from tilting when sliding in contact with the ground. Then, the rollers 15 at the bottom of the sliding door 13 are inserted into the track 23. Hold the knobs 3 at the front and back of the bracket body 1 respectively, and rotate the worm gear 18 by rotating the knobs 3. Guide the worm gear 18 to engage and push the worm wheel 19 above, which facilitates the rotation of the worm wheel. 19. Rotate the lead screw 7 to guide the threaded sleeves 5 on both sides to adjust the position of the upper push plate 21 along the movable groove 6, forcing the side of the steel ball 22 to contact the roller 15 and perform limiting assistance on the roller 15. Finally, pull out the stop block 8 from the slots 2 on both sides. At this time, the sliding groove 10 at the center of the stop block 8 is sleeved outside the limiting rod 9. Adjust the orientation of the stop block 8 so that it fits longitudinally against the outside of the slot 2. The steel ball 11 on the surface fits against the surface of the limiting strips 12 on both sides of the bottom of the sliding door 13. Screw in the bolt 17 to lock it in place by aligning the screw hole 28. The sliding door 13 can be restricted from both sides of the bracket body 1 and its sliding can be assisted.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An adjustable heavy-duty sliding door guide rail reinforcement bracket, comprising a bracket body (1), characterized in that: A track (23) is provided between the front and back of the upper center of the bracket body (1). A sliding door (13) is provided above the bracket body (1), and limit strips (12) are fixed between the front and back of the bottom two sides of the sliding door (13). A groove (16) is provided between the front and back of the top two sides of the bracket body (1). A slot (14) is provided at the bottom of the sliding door (13). A frame (27) is fixed between the two sides of the slot (14), and rollers (15) are movably connected between the left and right sides of the frame (27). Movable grooves (6) are provided at the front and rear ends of the track (23), and a movable groove (6) is provided on the left side of the movable groove (6). There is a transmission chamber (4), and a worm gear (19) is movably connected between the upper left and right sides inside the transmission chamber (4). A worm (18) is movably connected between the lower front and rear sides inside the transmission chamber (4). A knob (3) is movably connected to the lower center of the front and rear ends of the bracket body (1). A lead screw (7) is movably connected between the left and right sides inside the movable groove (6). Threaded sleeves (5) are threadedly connected to both sides of the lead screw (7). A push plate (21) is fixed between the top ends of the front and rear threaded sleeves (5). Two steel balls (22) are movably embedded in the front and rear sides of the push plate (21). A rectangular groove (20) is provided below the side of the track (23).
2. The adjustable heavy-duty sliding door guide rail reinforcing bracket according to claim 1, characterized in that: The end of the knob (3) is fixedly connected to the worm (18), and the right side of the worm wheel (19) is fixedly connected to the lead screw (7).
3. The adjustable heavy-duty sliding door guide rail reinforcing bracket according to claim 1, characterized in that: Vertical grooves (25) are provided on the upper sides of the track (23), and a limit frame (24) is fixed between the front and back of the lower part of the vertical groove (25). Insert rods (26) are fixedly inserted on both sides of the frame (27).
4. The adjustable heavy-duty sliding door guide rail reinforcing bracket according to claim 3, characterized in that: The outer side of the insertion rod (26) is embedded in the limiting frame (24), and the insertion rod (26) moves back and forth along the inner wall of the limiting frame (24).
5. The adjustable heavy-duty sliding door guide rail reinforcing bracket according to claim 1, characterized in that: The bracket body (1) has slots (2) on both sides below, and a limit rod (9) is fixed between the front and back sides of the inner side of the slot (2). A stop block (8) is movably sleeved on the outside of the limit rod (9), and a sliding groove (10) is provided between the upper and lower sides inside the stop block (8). A steel ball (11) is movably embedded on the outer side of the stop block (8). Bolts (17) are threadedly connected to both sides of the front end of the bracket body (1), and a screw hole (28) is provided on the surface of the stop block (8).
6. An adjustable heavy-duty sliding door guide rail reinforcing bracket according to claim 5, characterized in that: The shank of the bolt (17) is embedded in the bolt hole (28), and the limiting rod (9) is embedded in the groove (10).