Lower guide block of pulley

Abstract

The utility model relates to the technical field of sliding door guide rails, in particular to a lower guide block of a pulley. The inner cavity of the pulley seat is divided into two parallel sliding door guide grooves by the stop block; rollers are arranged on the stop blocks; and the two sides of the roller body respectively extend into the sliding door guide grooves. When the sliding door is used and slides, the rolling wheel in the middle is in contact with the door frame of the sliding door to form rolling connection and limit support for the sliding door, and the wheel body of the rolling wheel generates lateral support force for the sliding door, so that the friction force between the door frame of the sliding door and the guide rail is reduced, and the noise generated when the sliding door slides is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding door guide rails, in particular to a lower guide block of a pulley. Background Art

[0002] The double sliding door structure is a common door structure for shower rooms; two parallel guide rail structures are set on the bottom and top surfaces of the door; a roller structure for support is fixed to the bottom of the sliding door; and retaining edges are set on both sides of the guide rail to limit the lateral swing of the sliding door, so as to ensure that the sliding door will not derail. However, the existing sliding door adopts a baffle plate that directly contacts the door frame of the sliding door, which not only has a large friction force, but also makes the sliding door not slide smoothly, and the sliding door frame and the guide rail baffle slide against each other, causing a lot of noise. Utility Model Content

[0003] The utility model aims to provide a pulley lower guide block in view of the defects and shortcomings of the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses a pulley lower guide block, which comprises a pulley seat; a stopper is arranged in the middle of the pulley seat; the stopper divides the inner cavity of the pulley seat into two mutually parallel sliding door guide grooves; a roller is arranged on the stopper; and the two sides of the roller wheel body extend into the sliding door guide groove respectively.

[0006] Furthermore, positioning blocks are provided on both side walls of the pulley seat; the two positioning blocks and the roller are arranged on the same straight line; and the surface of the positioning blocks is in an arc shape.

[0007] Furthermore, a positioning block installation groove connected to the sliding door guide groove is formed at the bottom of the pulley seat; the positioning block is inserted into and fixed in the positioning block installation groove; and the arc surface of the positioning block extends into the sliding door guide groove.

[0008] Furthermore, a roller groove is provided on the stopper; the two sides of the roller groove are respectively connected with the sliding door guide grooves on both sides; a threaded hole is provided in the roller groove; the roller is inserted into the roller groove; the bolt passes through the through hole in the middle of the roller and is threadedly connected to the threaded hole, and the bolt connects the roller to the stopper.

[0009] Furthermore, a countersunk hole is provided on the top of the block; a decorative cover is provided on the top of the block; a cartridge for being clamped and fixed on the head of the countersunk hole is fixed on the decorative cover; the cartridge is composed of a plurality of clamping strips distributed in a circular pattern on the decorative cover.

[0010] After adopting the above structure, the utility model has the following beneficial effects: when the pulley lower guide block of the utility model is used, after the sliding door is inserted into the sliding door guide groove, there is still a small gap between the sliding door and the inner side wall of the pulley seat or between the sliding door and the roller, and when the sliding door in one sliding door guide groove slides, the roller will not drive the door in the other sliding door guide groove to slide;

[0011] When the sliding door slides, the roller in the middle contacts the sliding door frame to form a rolling connection, which provides limited support for the sliding door. The roller body generates lateral support for the sliding door, reduces the friction between the sliding door frame and the guide rail, and reduces the noise generated when the sliding door slides. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 It is a cross-sectional view of the utility model;

[0015] Figure 4 It is a three-dimensional diagram of the pulley seat;

[0016] Figure 5 It is a structural diagram of the decorative cover;

[0017] Description of reference numerals:

[0018] 1. Pulley seat; 101. Sliding door guide groove; 102. Stopper; 102a. Countersunk hole; 102b. Roller groove;

[0019] 102c, threaded hole; 103, positioning block mounting groove; 2, positioning block; 3, decorative cover; 301, card strip;

[0020] 4. Roller; 5. Bolt; 6. Locking screw. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5 As shown, the pulley lower guide block of the utility model comprises a pulley seat 1; a stopper 102 is arranged in the middle of the pulley seat 1; the stopper 102 divides the inner cavity of the pulley seat 1 into two mutually parallel sliding door guide grooves 101; a roller 4 is arranged on the stopper 102; both sides of the roller 4 extend into the sliding door guide groove 101 respectively;

[0023] After the sliding door is inserted into the sliding door guide groove 101, there is still a small gap between the sliding door and the inner wall of the pulley seat 1 or between the sliding door and the roller 4. When the sliding door in one sliding door guide groove 101 slides, the roller 4 will not drive the door in the other sliding door guide groove 101 to slide.

[0024] When the sliding door slides, the roller 4 in the middle contacts the sliding door frame to form a rolling connection, which provides limited support for the sliding door. The wheel body of the roller 4 generates lateral support force for the sliding door, reduces the friction between the sliding door frame and the guide rail, and reduces the noise generated when the sliding door slides.

[0025] As a preferred embodiment of the utility model, both side walls of the pulley seat 1 are provided with positioning blocks 2; the two positioning blocks 2 and the roller 4 are arranged on the same straight line; the surface of the positioning block 2 is in an arc shape; the positioning block 2 is made of PA66 material; the arc-shaped positioning block 2 and the wheel body of the roller 4 are used to contact the two sides of the sliding door, so that when the sliding door moves, the sliding door contacts the positioning block 2 or the roller 4, and the linear contact formed with the positioning block 2 reduces the friction and noise when the sliding door slides; when in contact with the roller 4, the sliding door frame and the roller 4 form a rolling connection, so that the sliding door runs more smoothly, with less friction and lower noise.

[0026] As a preferred embodiment of the utility model, a positioning block mounting groove 103 connected to the sliding door guide groove 101 is provided at the bottom of the pulley seat 1; the positioning block 2 is inserted into and fixed in the positioning block mounting groove 103; the arc surface of the positioning block 2 extends into the sliding door guide groove 101.

[0027] As a preferred embodiment of the present invention, the stopper 102 is provided with a roller groove 102b; the two sides of the roller groove 102b are respectively connected with the sliding door guide grooves 101 on both sides; the roller groove 102b is provided with a threaded hole 102c; the roller 4 is inserted into the roller groove 102b; the bolt 5 passes through the through hole in the middle of the roller 4 and is threadedly connected to the threaded hole 102c, and the bolt 5 connects the roller 4 to the stopper 102;

[0028] A bearing is arranged in the middle of the roller 4; the bolt 5 is pressed against the inner ring of the bearing; the roller 4 is connected to the pulley seat 1 in a detachable manner, so that the roller 4 can be easily replaced.

[0029] As a preferred embodiment of the present invention, a countersunk hole 102a is provided on the top of the stopper 102; a decorative cover 3 is provided on the top of the stopper 102; a cartridge for being inserted and fixed on the head of the countersunk hole 102a is fixed on the decorative cover 3; the cartridge is composed of a plurality of clip strips 301 distributed in a circumference on the decorative cover 3;

[0030] The locking screw 6 is used to fix the pulley seat 1 to the lower guide rail profile;

[0031] There is elastic force between the clamping strips 301, which can be inserted into the countersunk hole 102a to fix the decorative cover 3 on the stopper 102; the decorative cover 3 is used to cover the locking screws 6 and the bolts 5, so that the locking screws 6 and the bolts 5 are better protected.

[0032] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pulley lower guide block, characterized in that: It comprises a pulley seat (1); a stopper (102) is arranged in the middle of the pulley seat (1); the stopper (102) divides the inner cavity of the pulley seat (1) into two mutually parallel sliding door guide grooves (101); a roller (4) is arranged on the stopper (102); and two sides of the roller (4) extend into the sliding door guide groove (101) respectively.

2. A pulley lower guide block according to claim 1, characterized in that: Both side walls of the pulley seat (1) are provided with positioning blocks (2); the two positioning blocks (2) and the roller (4) are arranged on the same straight line; and the surface of the positioning blocks (2) is in an arc shape.

3. A pulley lower guide block according to claim 2, characterized in that: The bottom of the pulley seat (1) is provided with a positioning block installation groove (103) which is connected to the sliding door guide groove (101); the positioning block (2) is inserted into and fixed in the positioning block installation groove (103); and the arc-shaped surface of the positioning block (2) extends into the sliding door guide groove (101).

4. The pulley lower guide block according to claim 1, characterized in that: The stopper (102) is provided with a roller groove (102b); the two sides of the roller groove (102b) are respectively connected to the sliding door guide grooves (101) on the two sides; a threaded hole (102c) is provided in the roller groove (102b); the roller (4) is inserted into the roller groove (102b); the bolt (5) passes through the through hole in the middle of the roller (4) and is threadedly connected to the threaded hole (102c), and the bolt (5) connects the roller (4) to the stopper (102).

5. The pulley lower guide block according to claim 1, characterized in that: A countersunk hole (102a) is provided on the top of the stopper (102); a decorative cover (3) is provided on the top of the stopper (102); a cartridge for being inserted and fixed to the head of the countersunk hole (102a) is fixed on the decorative cover (3); the cartridge is composed of a plurality of clip strips (301) distributed in a circular pattern on the decorative cover (3).

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