anti-jump wheel

Abstract

The utility model discloses a prevent jumping wheel from belonging to the auxiliary pulley field of sliding door and window, is used for the sliding guide of door and window bottom, has solved the technical problem that the elastic piece installation is inconvenient, and it includes support and support base, one end installation pulley of support, the other end rotation is connected in support base of support, the support base is installed in support through the elastic piece, and the rebound force direction of elastic piece is inclined to support.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary pulleys for sliding doors and windows, and specifically relates to a pulley that prevents the bottom of doors and windows from jumping up and down and swinging back and forth. Background Technology

[0002] Anti-jumping wheels are installed at the bottom of sliding doors and windows. One part of the anti-jumping wheel is mounted on a pulley that slides along the ground, while the other part is installed at the bottom of the door or window. These two parts are connected by a spring mechanism. The weight of the door or window causes these two parts to rotate relative to each other, generating a spring force in the spring mechanism. The bottom of the door or window remains in elastic contact with the ground via the pulley, thus ensuring smooth sliding of the door or window while preventing it from jumping up and down or swinging back and forth. Most existing spring mechanisms use torsion springs to generate torque to achieve the same effect. However, installing torsion springs requires setting up mounting positions for the torsion arm and spring coil, as well as a limiting structure to prevent displacement of the torsion arm. This results in a complex spring mechanism, inconvenient installation, and poor usability. Utility Model Content

[0003] The purpose of this invention is to provide an anti-jumping wheel, which solves the technical problem of inconvenient installation of the spring mechanism.

[0004] The anti-jumping wheel includes a bracket and a support. A pulley is installed at one end of the bracket, and the other end of the bracket is rotatably connected to the support. The support is installed on the bracket through a spring-loaded component, and the spring-loaded component's spring force is inclined to the bracket.

[0005] The spring is a compression spring, with one end of the spring mounted on the support and the other end abutting against the bracket.

[0006] The support has an inner hole, which is a through hole. The inner hole is inclined along the length of the support, and the spring-loaded component is slidably installed in the inner hole.

[0007] One end of the spring-loaded component abuts against the bracket via a pressure rod, and the other end of the spring-loaded component abuts against the end cap. The pressure rod is slidably installed in the inner hole and extends out from one end of the support, while the end cap is fixed to the other end of the support.

[0008] The pressure bar includes a bar body and a pressure head. The pressure head is stepped relative to the bar body. The inner hole is provided with a shoulder. The pressure head can be confined to the shoulder. The pressure head abuts against one end of the spring-loaded component. The bar body extends from one end of the support and abuts against the bracket.

[0009] The end cap is a grommet screw, which is threaded into the inner hole.

[0010] The support is rotatably connected to the other end of the bracket via an ear plate. The other end of the bracket is provided with a baffle. The upper end face of the ear plate has the same inclination angle as the inner hole. The rod body abuts against the baffle along the upper end face of the ear plate.

[0011] The support has mounting grooves on both sides along its length.

[0012] The top of the support is provided with a fixing groove for installing bolts. The fixing groove is inclined along the length of the support. One end of the fixing groove is provided with an operating hole, and the other end of the fixing groove is a through groove.

[0013] The bracket consists of two support plates, which are parallel to the ear plates. The pulley and ear plates are respectively connected between the two support plates. The baffle is connected to the two support plates at one end of the bracket, and there is a rotation gap between the baffle and the ear plates.

[0014] The beneficial effects of this invention are as follows: The compression spring is used as a rebound element, ensuring the rebound force is linear. The compression spring is inclined relative to the bracket, allowing the weight of the door / window to press against the bracket via the support. As the support rotates relative to the bracket, the bracket compresses the compression spring in a linear direction, generating a rebound force. Under this rebound force, the pulley remains in contact with the ground. During the pulley's movement, the bracket rotates relative to the support, adjusting the rebound amount of the compression spring as needed. The pulley can adaptively adjust its height from the ground, ensuring smooth sliding and preventing the bottom of the door / window from bouncing up and down or swaying back and forth. Furthermore, the linear rebound spring allows for easy installation within the bracket's inner hole, where axial positioning can be conveniently achieved using shoulders and end caps, making installation very easy. Attached Figure Description

[0015] Figure 1 This is a perspective view of the anti-jumping wheel of this utility model;

[0016] Figure 2 for Figure 1 Exploded view;

[0017] Figure 3 This is a front sectional view of the anti-jump wheel of this utility model. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1 , 2As shown in Figure 3, the anti-jumping wheel includes a bracket 1 and a support 2. The support 2 has mounting grooves 3 on both sides along its length. These grooves 3 are inserted into the profile at the bottom of the door / window, pre-installing the support 2 with the bottom of the door / window. The top of the support 2 has a fixing groove 4. One end of the fixing groove 4 has an operating hole 5, and the other end is a through groove 6. The fixing groove 4 is inclined along the length of the support 2, and its body is open. When a locking bolt is inserted into the fixing groove 4 through the operating hole 5, the locking bolt, the top surface of the support, and the end face of the support form a triangular bracket, thereby locking the support to the bottom of the door / window.

[0020] The support 1 consists of two support plates 7, which are parallel and symmetrically arranged, and are parallel to the two sides of the support 2. A pulley 8 is located between the two support plates 7 and is connected to one end of the two support plates 7 by a pin passing through its end face. The end face of the pulley 8 is parallel to the two support plates 7, and the circumference of the pulley 8 slides along the ground. One end of the support 2 is provided with an ear plate 9, the two sides of which are parallel to the two sides of the support 2. The ear plate 9 is located between the two support plates 7 and is connected to the other end of the two support plates 7 by a pin passing through its two sides.

[0021] A baffle 10 is connected to the other end of the two support plates 7. A rotation gap 11 is provided between the baffle 10 and the ear plate 9, which ensures the rotational position of the support relative to the bracket. A compression spring 12 is used as the spring-returning component. The support 2 has an inner hole 13, which extends through the inside of the support 2 to form a through hole. The inner hole 13 is inclined to the length direction of the support 2. The spring-returning component is slidably installed in the inner hole 13. One end of the spring-returning component is pressed by a pressure rod 14. The pressure rod 14 includes a rod body 15 and a pressure head 16. The pressure head 16 is stepped relative to the rod body 15. The inner hole 13 has a shoulder 17. The pressure head 16 can slide along the inner hole 13 and is limited to the shoulder 17. The pressure head 16 abuts against one end of the spring-returning component. The rod body 15 extends from one end of the support 2 and abuts against the baffle 10 of the bracket 1. The upper end face of the ear plate 9 has the same inclination angle as the inner hole 13, and the rod body 15 can slide along the upper end face of the ear plate 9 and abut against the baffle 10. The other end of the spring is pressed by an end cap, which is preferably a nut screw 18, and the nut screw 18 is threaded from the other end of the support 2 to the inner hole 13.

[0022] Compression spring 12 serves as a rebound element, ensuring the rebound force is linear. The compression spring 12 is inclined relative to bracket 1, allowing the weight of the door / window to press against bracket 1 via support 2. Support 2 rotates relative to bracket 1, and bracket 1 compresses compression spring 12 linearly, generating a rebound force. Under this rebound force, pulley 8 remains in contact with the ground. As pulley 8 slides, bracket 1 continuously rotates relative to support 2. Bracket 10 of bracket 1 presses against the rod 15 of pressure rod 14, which in turn compresses compression spring 12, generating a rebound force. This allows for timely adjustment of the spring's rebound amount, enabling pulleys to adaptively adjust their height from the ground. This ensures smooth sliding of the pulleys while preventing the bottom of the door / window from bouncing up and down or swaying back and forth. Furthermore, the linear rebound spring allows for easy installation within the inner hole of the support, where axial positioning can be conveniently achieved using shoulders and end caps, making installation very easy.

Claims

1. Anti-jumping wheel, characterized in that, It includes a bracket (1) and a support (2). One end of the bracket (1) is equipped with a pulley (8), and the other end of the bracket (1) is rotatably connected to the support (2). The support (2) is installed on the bracket (1) through a spring-loaded component, and the spring-loaded component has a spring-loaded force direction inclined to the bracket (1).

2. The anti-jump wheel according to claim 1, characterized in that, The spring is a compression spring (12), one end of which is mounted on the support (2), and the other end of which abuts against the bracket (1).

3. The anti-jump wheel according to claim 2, characterized in that, The support (2) is provided with an inner hole (13), which is a through hole. The inner hole (13) is inclined along the length direction of the support (2), and the spring is slidably installed in the inner hole (13).

4. The anti-jumping wheel according to claim 3, characterized in that, One end of the spring-loaded component abuts against the bracket (1) via a pressure rod (14), and the other end of the spring-loaded component abuts against the end cap. The pressure rod (14) is slidably installed in the inner hole (13) and extends out from one end of the support (2). The end cap is fixed to the other end of the support (2).

5. The anti-jump wheel according to claim 4, characterized in that, The pressure rod (14) includes a rod body (15) and a pressure head (16). The pressure head (16) is stepped relative to the rod body (15). The inner hole (13) is provided with a shoulder (17). The pressure head (16) can be confined to the shoulder (17). The pressure head (16) abuts against one end of the spring member. The rod body (15) extends from one end of the support (2) and abuts against the bracket (1).

6. The anti-jump wheel according to claim 4, characterized in that, The end cap is a nut screw (18), which is threaded into the inner hole (13).

7. The anti-jump wheel according to claim 5, characterized in that, The support (2) is rotatably connected to the other end of the bracket (1) via the ear plate (9). The other end of the bracket (1) is provided with a baffle (10). The upper end face of the ear plate (9) has the same inclination angle as the inner hole (13). The rod body (15) abuts against the baffle (10) along the upper end face of the ear plate (9).

8. The anti-jump wheel according to claim 1, characterized in that, The support (2) has mounting grooves (3) on both sides along the length direction.

9. The anti-jump wheel according to claim 1, characterized in that, The top of the support (2) is provided with a fixing groove (4) for installing bolts. The fixing groove (4) is inclined along the length direction of the support (2). One end of the fixing groove (4) is provided with an operating hole (5), and the other end of the fixing groove (4) is a through groove (6).

10. The anti-jump wheel according to claim 7, characterized in that, The bracket (1) is composed of two support plates (7), the support plates (7) are parallel to the ear plates (9), the pulleys (8) and the ear plates (9) are respectively connected between the two support plates (7), the baffle (10) is connected to the two support plates (7) at one end of the bracket (1), and a rotation gap (11) is provided between the baffle (10) and the ear plates (9).

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