Sliding door pulley capable of being directly replaced without disassembling track

Abstract

The utility model discloses a sliding door pulley capable of being directly replaced without dismounting a rail, which belongs to the field of sliding doors and comprises a left pulley assembly and a right pulley assembly, and a pulley body is arranged on the left pulley assembly or / and the right pulley assembly; the thickness of the left pulley assembly and the thickness of the right pulley assembly are both smaller than the width of a rail notch, the left pulley assembly and the right pulley assembly are detachably connected, and the sum of the thickness of the left pulley assembly and the thickness of the right pulley assembly after connection is larger than the width of the rail notch. When the sliding door pulley is installed, the left pulley assembly and the right pulley assembly are placed in the track in a staggered mode, then installation of the left pulley assembly and the right pulley assembly is completed in the track, the track does not need to be disassembled when the pulley is replaced, and maintenance is convenient and fast.

Description

Technical Field

[0001] This invention belongs to the field of sliding doors, specifically relating to a sliding door pulley that can be replaced directly without disassembling the track. Background Technology

[0002] Automatic sliding doors are widely used in various public places, such as train stations, airports, banks, and shopping malls. Currently, most sliding door tracks on the market are U-shaped, using double-sided pulleys to effectively prevent derailment. For example, patent application CN106285276A discloses a hanging-track sliding door, which includes a hanging track, a sliding door, a hanging wheel mechanism, fixing components, and a clamp. The hanging wheel mechanism slides along the length of the hanging track and is detachably fitted with a clamp. The fixing components pass through the clamp and the sliding door, detachably fixing the sliding door to the clamp. However, this method presents challenges when dealing with after-sales issues, especially pulley damage. Because the pulley thickness must be greater than the track groove width, the pulley cannot be removed or replaced within the track; the entire track must be disassembled, making pulley replacement and repair extremely time-consuming and labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to provide a sliding door pulley that can be replaced directly without disassembling the track, so as to solve the problem of time-consuming and laborious replacement of existing sliding door pulleys when they are damaged.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] This invention relates to a sliding door pulley that can be directly replaced without disassembling the track. It cooperates with the track and includes a left pulley assembly and a right pulley assembly. The left pulley assembly and / or the right pulley assembly are provided with pulley bodies. The thickness of the left pulley assembly and the right pulley assembly is less than the width of the track groove. The left pulley assembly and the right pulley assembly are detachably connected. The combined thickness of the left pulley assembly and the right pulley assembly after connection is greater than the width of the track groove.

[0006] Preferably, the left pulley assembly includes a left slide block with a slide groove on its side; the right pulley assembly includes a right slide block with a pin on its side; the pin is slidably connected to the slide groove.

[0007] Preferably, the slide and the pin are both arranged along the direction of the track.

[0008] Preferably, the cross-sections of the slide and the pin are both isosceles trapezoids, the width of the slide opening is smaller than the width of the bottom, and the width of the left side of the pin is greater than the width of the right side, thereby restricting the relative movement in the left and right directions after the left and right pulley assemblies are connected.

[0009] Preferably, a limiting plate is provided at the end of the chute.

[0010] Preferably, the bottom of both the left and right slide blocks is provided with push plates, which facilitates pushing the left and right slide blocks to make the pin slide and engage with the slide groove.

[0011] Preferably, the right side of the left pulley assembly and the left side of the right pulley assembly are provided with threaded holes with a semi-circular cross-section. After the left pulley assembly and the right pulley assembly are connected, the semi-circular threaded holes on both sides are combined to form a circular threaded hole. The threaded hole is used for threaded connection to fix the door leaf connector.

[0012] Preferably, both the left pulley assembly and the right-left pulley assembly are provided with two pulley bodies.

[0013] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0014] The sliding door pulleys of this invention, which can be replaced directly without disassembling the track, include a left pulley assembly and a right pulley assembly. The thickness of both the left and right pulley assemblies is less than the width of the track groove. The left and right pulley assemblies are detachably connected, and the combined thickness of the connected left and right pulley assemblies is greater than the width of the track groove. During installation, the left and right pulley assemblies are placed into the track in a staggered manner, and then the installation of the left and right pulley assemblies is completed within the track. When replacing the pulleys, there is no need to disassemble the track, making maintenance convenient and quick. Attached Figure Description

[0015] Figure 1 This is a perspective view of the sliding door pulley that can be replaced directly without disassembling the track, as per the present invention.

[0016] Figure 2 This is a front view of the sliding door pulley that can be replaced directly without disassembling the track, as per the present invention.

[0017] Figure 3 This is an exploded view of the sliding door pulley that can be replaced directly without disassembling the track, as per the present invention.

[0018] Figure 4 This is a front view of the installation process of the sliding door pulley that can be replaced without disassembling the track, as per the present invention.

[0019] Figure 5 This is a side view of the installation process of the sliding door pulley that can be replaced without disassembling the track, as per the present invention.

[0020] Reference numerals: 1-Left pulley assembly, 2-Right-Left pulley assembly, 3-Left slide block, 4-Right slide block, 5-Pulley body, 6-Slide groove, 7-Pin, 8-Limiting plate, 9-Push plate, 10-Threaded hole, 11-Railway, 12-Connecting assembly. Detailed Implementation

[0021] To further understand the content of this invention, the invention will be described in detail with reference to the embodiments. The following embodiments are used to illustrate the invention, but are not intended to limit the scope of the invention.

[0022] See attached document Figure 1 As shown, this invention relates to a sliding door pulley that can be directly replaced without disassembling the track. It cooperates with the track and includes a left pulley assembly 1 and a right pulley assembly 2. The left pulley assembly 1 and / or the right pulley assembly 2 are equipped with pulley bodies 5. In this embodiment, both the left pulley assembly 1 and the right pulley assembly 2 are equipped with two pulley bodies. The thickness of both the left pulley assembly 1 and the right pulley assembly 2 is less than the width of the track groove. The left pulley assembly 1 and the right pulley assembly 2 are detachably connected, and the combined thickness of the connected left pulley assembly 1 and right pulley assembly 2 is greater than the width of the track groove.

[0023] See attached document Figure 2 and 3 As shown, the specific connection method of the detachable connection between the left pulley assembly 1 and the right pulley assembly 2 is as follows: The left pulley assembly 1 includes a left slide block 3, and a slide groove 6 is provided on the side of the left slide block 3. The slide groove 6 is arranged along the direction of the track, and the cross-section of the slide groove 6 is an isosceles trapezoid. The width of the groove opening of the slide groove 6 is smaller than the width of the groove bottom, and a limiting plate 8 is provided at the end of the slide groove 6. The right pulley assembly 2 includes a right slide block 4, and a pin 7 is provided on the side of the right slide block 4. The pin 7 is also arranged along the direction of the track, and the cross-section of the pin 7 is also an isosceles trapezoid. The pin 7 is slidably connected to the slide groove 6. The width of the left side of the pin 7 is greater than the width of the right side, thereby restricting the relative movement in the left and right directions after the left pulley assembly 1 and the right pulley assembly 2 are connected. The bottom of the left slide block 3 and the right slide block 4 are both provided with push plates 9, which facilitates pushing the left and right slide blocks to make the pin slidably connected to the slide groove.

[0024] See attached document Figure 1 and 3 As shown, the right side of the left pulley assembly 1 and the left side of the right pulley assembly 2 are both provided with threaded holes 10 with a semi-circular cross section. After the left pulley assembly 1 and the right pulley assembly 2 are connected, the semi-circular threaded holes 10 on both sides are combined to form a circular threaded hole 10. The threaded hole 10 is used for connecting and fixing the door leaf with a threaded connection.

[0025] See attached document Figure 4 and attached Figure 5As shown, the assembly process of the sliding door pulley that can be replaced directly without disassembling the track according to the present invention is as follows: First, the left pulley assembly 1 and the right pulley assembly 2 are placed into the track 11 one after another and staggered; then, the push plate 9 is moved along the direction of the track 11 to move the left pulley assembly 1 and / or the right pulley assembly 2, so that the pin 7 is inserted into the slide groove 6. When the end of the pin 7 contacts the limiting plate 8 of the slide groove 6, it indicates that the left pulley assembly 1 and the right pulley assembly 2 are just installed in place. At this time, the semi-circular threaded holes 10 on the left pulley assembly 1 and the right pulley assembly 2 combine to form a circular threaded hole 10. After assembly, the thickness of the left pulley assembly 1 and the right pulley assembly 2 is greater than the width of the groove of the track 11, and the combined structure will not fall out of the track 11; finally, the screw on the top of the connecting component 12 is screwed into the threaded hole 10 by screwing, and the door leaf is fixed with the connecting component 12. When the sliding door rollers that can be replaced without disassembling the track are damaged, they can be removed by simply reversing the installation sequence. The rollers can be replaced without disassembling the track, making maintenance convenient and quick.

[0026] The present invention has been described in detail above with reference to the embodiments, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A sliding door pulley that can be replaced directly without disassembling the track, which cooperates with the track, characterized in that: It includes a left pulley assembly and a right pulley assembly, and the left pulley assembly and / or the right pulley assembly are provided with pulley bodies; the thickness of the left pulley assembly and the right pulley assembly is less than the width of the track groove, the left pulley assembly and the right pulley assembly are detachably connected, and the combined thickness of the left pulley assembly and the right pulley assembly after connection is greater than the width of the track groove; The left pulley assembly includes a left slide block with a groove on its side; the right pulley assembly includes a right slide block with a pin on its side; the pin is slidably connected to the groove; both the groove and the pin are arranged along the direction of the track.

2. The sliding door pulley that can be replaced directly without disassembling the track according to claim 1, characterized in that: Both the groove and the pin have isosceles trapezoidal cross sections. The groove opening width is smaller than the bottom width, and the left side width of the pin is larger than the right side width.

3. The sliding door pulley that can be directly replaced without disassembling the track according to claim 1, characterized in that: The end of the chute is provided with a limiting plate.

4. The sliding door pulley that can be directly replaced without disassembling the track according to claim 1, characterized in that: Both the left and right slides are equipped with push plates at their bottoms.

5. The sliding door pulley that can be directly replaced without disassembling the track according to claim 1, characterized in that: The left pulley assembly has a semi-circular threaded hole on its right side and the right pulley assembly has a semi-circular threaded hole on its left side. After the left pulley assembly and the right pulley assembly are connected, the semi-circular threaded holes on both sides are combined to form a circular threaded hole.

6. The sliding door pulley that can be directly replaced without disassembling the track according to claim 1, characterized in that: Both the left pulley assembly and the right-left pulley assembly are equipped with two pulley bodies.

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