Pulley assembly and sliding door thereof

Abstract

The utility model discloses a pulley assembly and push and pull door, related to push and pull door pulley technical field, including lower track, pulley mechanism, limiting mechanism and adjusting mechanism, and pulley mechanism sets up between lower track and door frame, and limiting mechanism sets up between pulley mechanism and lower track, and limiting mechanism is used for blocking pulley mechanism and lower track separation, and adjusting mechanism sets up between limiting mechanism and pulley mechanism, and adjusting mechanism is used for changing the use state of limiting mechanism. The utility model discloses through limiting mechanism makes the door frame through pulley assembly and will not appear the phenomenon of derailment when sliding in lower track top, when mix wheel assembly is damaged, through the cooperation of adjusting mechanism, the position change of limiting mechanism removes the limiting, at this moment can separate pulley assembly and lower track and replace, has guaranteed the stable use of pulley assembly and improved the convenience of pulley assembly replacement.

Description

Technical Field

[0001] This utility model relates to the field of sliding door pulley technology, and in particular to a pulley assembly and its sliding door. Background Technology

[0002] In modern architecture, sliding doors are widely used in residential, commercial, and public facilities due to their space-saving and easy-to-operate features. One of the core components of a sliding door is the pulley assembly, whose performance directly affects the smoothness, stability, and lifespan of the door.

[0003] To ensure stable operation of sliding doors, the pulleys on the door frame are designed to engage with the side of the track during installation, preventing longitudinal movement of the pulleys relative to the track and thus preventing derailment during door movement. However, this design makes it difficult to replace damaged pulleys directly; the entire sliding door must be disassembled to remove the pulley assembly from the track, reducing the convenience of pulley replacement. Therefore, we propose a pulley assembly and a sliding door based on it. Utility Model Content

[0004] The purpose of this invention is to provide a pulley assembly and its sliding door to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulley assembly, comprising:

[0006] Lower track;

[0007] A pulley mechanism is provided between the lower track and the door frame;

[0008] A limiting mechanism is provided between the pulley mechanism and the lower rail, and the limiting mechanism is used to prevent the pulley mechanism from separating from the lower rail;

[0009] An adjustment mechanism is provided between the limiting mechanism and the pulley mechanism, and the adjustment mechanism is used to change the usage state of the limiting mechanism.

[0010] Preferably, the pulley assembly includes:

[0011] Mounting block, which is fixedly connected to the bottom end of the door frame;

[0012] A connecting plate, wherein a fixing rod is fixedly connected between the mounting block and the connecting plate;

[0013] Two rollers are respectively rotatably sleeved on the two ends of the outer wall of the connecting disc. The top of the lower track is provided with a sliding groove, and the rollers are movably disposed inside the sliding groove.

[0014] Preferably, the limiting mechanism includes:

[0015] The limiting plate has storage slots on both sides of the connecting plate, and the limiting plate is movably inserted into the storage slots.

[0016] A limiting groove is symmetrically formed on the inner wall of the slide groove, and the shape of the limiting groove matches the shape of the limiting plate.

[0017] Preferably, the adjustment mechanism includes:

[0018] A movable rod, which is rotatably connected to the side of the limiting plate near the storage slot;

[0019] An movable hole is formed in the inner wall of the storage groove, and a movable rod is movably inserted into the inner wall of the movable hole. A connecting mechanism is provided between the two movable rods.

[0020] Preferably, the connecting mechanism includes:

[0021] A connecting cavity is formed between two movable holes. The inner wall of the connecting cavity is symmetrically and slidably connected with first piston blocks. The two first piston blocks are respectively fixedly connected to one end of the movable rod.

[0022] The second piston block is slidably connected to the inner wall of the connecting cavity. Hydraulic oil is provided between the second piston block and the two first piston blocks. A compression spring is provided at the bottom end of the second piston block, and a compression mechanism is provided at the top end of the second piston block.

[0023] Preferably, the extrusion mechanism includes:

[0024] A connecting rod is fixedly connected to the top of the second piston block. The mounting block has a movable cavity inside, and a connecting hole is provided between the movable cavity and the connecting cavity. The connecting rod is movably inserted into the inner wall of the connecting hole.

[0025] A movable block is movably disposed inside the movable cavity. A conical block is fixedly connected to one side of the movable block, and a moving mechanism is provided on the other side of the movable block.

[0026] Preferably, the moving mechanism includes:

[0027] An adjusting bolt is fixedly connected to the other side of the movable block;

[0028] A threaded hole is formed on the inner wall of the conical block, and the outer wall of the adjusting bolt is threadedly connected to the inner wall of the threaded hole.

[0029] This utility model also provides a sliding door, including the pulley assembly described in any one of the above.

[0030] The technical effects and advantages of this utility model are as follows:

[0031] This utility model utilizes a limiting mechanism to prevent the door frame from derailing when sliding on the top of the lower track via the pulley assembly. When the pulley assembly is damaged, the limiting mechanism can be adjusted to change its position and release the limiting, allowing the pulley assembly to be separated from the lower track for replacement. This ensures stable use of the pulley assembly while improving the convenience of its replacement. Attached Figure Description

[0032] Figure 1 This is a side sectional view of the present invention.

[0033] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0034] Figure 3 This is a side sectional view of the connecting disc of this utility model.

[0035] In the diagram: 101, lower track; 201, mounting block; 202, fixing rod; 203, connecting plate; 204, roller; 205, slide groove; 301, limiting groove; 302, limiting plate; 401, storage groove; 402, movable hole; 403, movable rod; 501, connecting cavity; 502, first piston block; 503, second piston block; 504, hydraulic oil; 601, connecting hole; 602, connecting rod; 603, conical block; 604, moving block; 606, movable cavity; 701, threaded hole; 702, adjusting bolt; 801, compression spring. Detailed Implementation

[0036] 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.

[0037] This utility model provides, for example Figures 1-3The pulley assembly shown includes a lower track 101, a pulley mechanism, a limiting mechanism, and an adjusting mechanism. The pulley mechanism is disposed between the lower track 101 and the door frame. The limiting mechanism is disposed between the pulley mechanism and the lower track 101, and is used to prevent the pulley mechanism from separating from the lower track 101. The adjusting mechanism is disposed between the limiting mechanism and the pulley mechanism, and is used to change the usage state of the limiting mechanism. The limiting mechanism prevents the door frame from derailing when the pulley assembly slides on the top of the lower track 101. When the pulley assembly is damaged, the limiting mechanism is adjusted to release the limiting mechanism, allowing the pulley assembly to be separated from the lower track 101 for replacement. This ensures stable use of the pulley assembly while improving the convenience of pulley assembly replacement.

[0038] The pulley assembly includes a mounting block 201, a connecting plate 203, and rollers 204. The mounting block 201 is fixedly connected to the bottom of the door frame. A fixing rod 202 is fixedly connected between the mounting block 201 and the connecting plate 203. The two rollers 204 are respectively rotatably sleeved on the two ends of the outer wall of the connecting plate 203. A groove 205 is opened at the top of the lower track 101. The rollers 204 are movably disposed inside the groove 205. By the rollers 204 rolling in the groove 205, the door frame can move stably at the top of the lower track 101.

[0039] The limiting mechanism includes a limiting groove 301 and a limiting plate 302. Both sides of the connecting plate 203 are provided with a storage groove 401. The limiting plate 302 is movably inserted into the storage groove 401. The limiting groove 301 is symmetrically opened on the inner wall of the slide groove 205. The shape of the limiting groove 301 matches the shape of the limiting plate 302. By the limiting plate 302 being locked in the limiting groove 301, the limiting groove 301 limits the limiting plate 302, preventing the pulley assembly from derailing, thereby improving the stability of the pulley assembly.

[0040] The adjustment mechanism includes a movable hole 402 and a movable rod 403. The movable rod 403 is rotatably connected to the side of the limiting plate 302 near the storage groove 401. The movable hole 402 is opened in the inner wall of the storage groove 401. The movable rod 403 is movably inserted into the inner wall of the movable hole 402. A connecting mechanism is provided between the two movable rods 403. When the pulley assembly needs to be replaced, the movable rod 403 only needs to move in the movable hole 402, so that the limiting plate 302 moves until the limiting plate 302 separates from the limiting groove 301 and retracts into the storage groove 401. At this time, the limiting mechanism can be activated, so that the pulley assembly can be taken out from the slide groove 205 for replacement.

[0041] The connecting mechanism includes a connecting cavity 501 and a second piston block 503. The connecting cavity 501 is located between two movable holes 402. The inner wall of the connecting cavity 501 is symmetrically and slidably connected to the first piston block 502. The two first piston blocks 502 are respectively fixedly connected to one end of the movable rod 403. The second piston block 503 is slidably connected to the inner wall of the connecting cavity 501. Hydraulic oil 504 is provided between the second piston block 503 and the two first piston blocks 502. A compression spring 801 is provided at the bottom end of the second piston block 503. A compression mechanism is provided at the top end of the second piston block 503. By moving the second piston block 503 upward, the two first piston blocks 502 can move relative to each other under the connection of the hydraulic oil 504, thereby causing the two limiting discs 302 to gradually move and retract into the receiving groove 401, thus releasing the operation of the limiting mechanism.

[0042] The extrusion mechanism includes a connecting rod 602 and a movable block 604. The connecting rod 602 is fixedly connected to the top of the second piston block 503. A movable cavity 606 is provided inside the mounting block 201, and a connecting hole 601 is provided between the movable cavity 606 and the connecting cavity 501. The connecting rod 602 is movably inserted into the inner wall of the connecting hole 601. The movable block 604 is movably disposed inside the movable cavity 606. A conical block 603 is fixedly connected to one side of the movable block 604, and a moving mechanism is provided on the other side of the movable block 604. The moving mechanism includes a threaded hole 701 and an adjusting bolt 7. 02. The adjusting bolt 702 is fixedly connected to the other side of the moving block 604. The threaded hole 701 is opened on the inner wall of the conical block 603. The outer wall of the adjusting bolt 702 is threadedly connected to the inner wall of the threaded hole 701. When the adjusting bolt 702 rotates in the threaded hole 701, it drives the moving block 604 to move, which in turn drives the conical block 603 to move. Through the compression of the inclined outer wall of the conical block 603 and the top of the connecting rod 602, and under the elastic cooperation of the compression spring 801, the second piston block 503 can rise and fall with the movement of the moving block 604.

[0043] This utility model also provides a sliding door, including any of the above-mentioned pulley assemblies.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulley assembly, characterized in that, include: Lower track (101); A pulley mechanism is provided between the lower track (101) and the door frame; A limiting mechanism is provided between the pulley mechanism and the lower rail (101), and the limiting mechanism is used to prevent the pulley mechanism from separating from the lower rail (101); An adjustment mechanism is provided between the limiting mechanism and the pulley mechanism, and the adjustment mechanism is used to change the usage state of the limiting mechanism.

2. The pulley assembly according to claim 1, characterized in that, The pulley assembly includes: Mounting block (201), which is fixedly connected to the bottom end of the door frame; A connecting plate (203) is provided, and a fixing rod (202) is fixedly connected between the mounting block (201) and the connecting plate (203); Rollers (204) are respectively rotatably sleeved on the two ends of the outer wall of the connecting disc (203). The top of the lower track (101) is provided with a groove (205), and the rollers (204) are movably disposed inside the groove (205).

3. A pulley assembly according to claim 2, characterized in that, The limiting mechanism includes: The limiting plate (302) has a storage slot (401) on both sides of the connecting plate (203), and the limiting plate (302) is movably inserted into the storage slot (401); A limiting groove (301) is symmetrically opened on the inner wall of the slide groove (205), and the shape of the limiting groove (301) matches the shape of the limiting disk (302).

4. A pulley assembly according to claim 3, characterized in that, The adjustment mechanism includes: Movable rod (403), which is rotatably connected to the side of the limiting plate (302) near the storage groove (401); An active hole (402) is formed on the inner wall of the storage groove (401), and an active rod (403) is movably inserted into the inner wall of the active hole (402). A connecting mechanism is provided between the two active rods (403).

5. A pulley assembly according to claim 4, characterized in that, The connecting mechanism includes: A connecting cavity (501) is formed between two movable holes (402). The inner wall of the connecting cavity (501) is symmetrically and slidably connected with first piston blocks (502). The two first piston blocks (502) are respectively fixedly connected to one end of the movable rod (403). The second piston block (503) is slidably connected to the inner wall of the connecting cavity (501). Hydraulic oil (504) is provided between the second piston block (503) and the two first piston blocks (502). A compression spring (801) is provided at the bottom end of the second piston block (503), and a compression mechanism is provided at the top end of the second piston block (503).

6. A pulley assembly according to claim 5, characterized in that, The extrusion mechanism includes: A connecting rod (602) is fixedly connected to the top of the second piston block (503). The mounting block (201) has an internal movable cavity (606). A connecting hole (601) is provided between the movable cavity (606) and the connecting cavity (501). The connecting rod (602) is movably inserted into the inner wall of the connecting hole (601). A movable block (604) is movably disposed inside the movable cavity (606). A conical block (603) is fixedly connected to one side of the movable block (604), and a moving mechanism is provided on the other side of the movable block (604).

7. A pulley assembly according to claim 6, characterized in that, The moving mechanism includes: An adjusting bolt (702) is fixedly connected to the other side of the movable block (604); A threaded hole (701) is formed on the inner wall of the conical block (603), and the outer wall of the adjusting bolt (702) is threadedly connected to the inner wall of the threaded hole (701).

8. A sliding door, characterized in that, Includes the pulley assembly described in any one of claims 1-7 above.

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