Sliding door pulley capable of being directly replaced without disassembling track

Abstract

The invention 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] The invention belongs to the field of sliding doors, and in particular relates to a sliding door pulley which can be directly replaced without disassembling a track. Background Art

[0002] Automatic sliding doors have been widely used in various public places, such as railway stations, airports, banks, shopping malls, etc. At present, most of the sliding door tracks on the market are U-shaped, and the double-sided pulleys used inside can effectively prevent derailment. For example, a hanging rail sliding door published in the utility model patent application with application publication number CN106285276A includes: a hanging rail, a sliding door, a hanging wheel mechanism, a fixing member and a jacket. The hanging wheel mechanism slides along the length direction of the hanging rail, and is detachably installed with a jacket. The fixing member passes through the jacket and the sliding door, respectively, and the sliding door is detachably fixed on the jacket. When this method involves after-sales problems, especially when the pulley is damaged, because the thickness of the pulley must be greater than the width of the track slot, the pulley cannot be removed and replaced in the track, and the entire track needs to be disassembled, resulting in the replacement and maintenance of the pulley being very time-consuming and labor-intensive. Summary of the invention

[0003] The object of the present invention is to provide a sliding door pulley which can be directly replaced without disassembling the track, so as to solve the problem that the existing sliding door pulley is time-consuming and labor-intensive to replace when it is damaged.

[0004] In order to achieve the above object, the technical solution of the present invention is as follows: The present invention relates to a sliding door pulley which can be directly replaced without disassembling a track. The sliding door pulley cooperates with the track and comprises a left pulley assembly and a right pulley assembly. The left pulley assembly and / or the right pulley assembly are provided with a pulley body. The thickness of the left pulley assembly and the right pulley assembly are both less than the width of a track slot. The left pulley assembly and the right pulley assembly are detachably connected. The sum of the thicknesses of the left pulley assembly and the right pulley assembly after being connected is greater than the width of the track slot.

[0005] Preferably, the left pulley assembly comprises a left slide seat, a side of which is provided with a slide groove; the right pulley assembly comprises a right slide seat, a side of which is provided with a latch; the latch is slidably connected with the slide groove.

[0006] Preferably, the slide groove and the latch are arranged along the direction of the track.

[0007] Preferably, the cross-sections of the slide groove and the latch are both isosceles trapezoidal, the slot width of the slide groove is smaller than the slot bottom width, and the left side width of the latch is larger than the right side width, thereby limiting the relative movement of the left pulley assembly and the right pulley assembly in the left and right directions after being connected.

[0008] Preferably, a limiting plate is provided at the end of the slide groove.

[0009] Preferably, a push plate is provided at the bottom of the left slide seat and the right slide seat to facilitate pushing the left slide seat and the right slide seat so that the latch and the slide slot are slidably connected.

[0010] Preferably, the right side surface of the left pulley assembly and the left side surface of the right pulley assembly are both provided with threaded holes with semicircular cross-sections. After the left pulley assembly and the right pulley assembly are connected, the semicircular threaded holes on both sides are combined to form a circular threaded hole, and the threaded hole is used for threaded connection to fix the connecting piece for the door leaf.

[0011] Preferably, the left pulley assembly and the right-left pulley assembly are each provided with two pulley bodies.

[0012] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The sliding door pulley that can be directly replaced without disassembling the track involved in the present invention comprises a left pulley assembly and a right pulley assembly, the thickness of the left pulley assembly and the right pulley assembly are both less than the width of the track slot, the left pulley assembly and the right pulley assembly are detachably connected, the sum of the thickness of the left pulley assembly and the right pulley assembly after being connected is greater than the width of the track slot, when installing, the left pulley assembly and the right pulley assembly are misaligned and put into the track, and then the 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 pulleys are replaced, and maintenance is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of a sliding door pulley that can be directly replaced without disassembling the track according to the present invention; Figure 2 This is a front view of the sliding door pulley that can be directly replaced without disassembling the track according to the present invention; Figure 3 An exploded view of a sliding door pulley that can be directly replaced without disassembling the track according to the present invention; Figure 4 This is a front view of the installation process of the sliding door pulley that can be directly replaced without disassembling the track according to the present invention; Figure 5 It is a side view of the installation process of the sliding door pulley that can be directly replaced without disassembling the track involved in the present invention.

[0014] Figure markings: 1-left pulley assembly, 2-right pulley assembly, 3-left slide seat, 4-right slide seat, 5-pulley body, 6-slide groove, 7-latch pin, 8-limiting plate, 9-push plate, 10-threaded hole, 11-track, 12-connecting assembly. DETAILED DESCRIPTION

[0015] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0016] Refer to the attached Figure 1 As shown, the present invention relates to a sliding door pulley that can be directly replaced without disassembling the track, which cooperates with the track, and the sliding door pulley 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 provided with a pulley body 5. In this embodiment, two pulley bodies are provided on the left pulley assembly 1 and the right pulley assembly 2. The thickness of the left pulley assembly 1 and the right pulley assembly 2 are both less than the width of the track slot, and the left pulley assembly 1 and the right pulley assembly 2 are detachably connected. The thickness of the left pulley assembly 1 and the right pulley assembly 2 after being connected is greater than the width of the track slot.

[0017] Refer to the attached Figure 2 and 3 As shown, the specific connection mode of the detachable connection of the left pulley assembly 1 and the right pulley assembly 2 is as follows: the left pulley assembly 1 includes a left slide seat 3, a slide groove 6 is provided on the side of the left slide seat 3, the slide groove 6 is arranged along the direction of the track, the cross section of the slide groove 6 is an isosceles trapezoid, the slot width of the slide groove 6 is less than the slot bottom width, and a limit plate 8 is provided at the end of the slide groove 6; the right pulley assembly 2 includes a right slide seat 4, a latch 7 is provided on the side of the right slide seat 4, the latch 7 is also arranged along the direction of the track, the cross section of the latch 7 is also an isosceles trapezoid, the latch 7 is slidably connected with the slide groove 6, the left width of the latch 7 is greater than the right width, thereby limiting the relative movement of the left pulley assembly 1 and the right pulley assembly 2 in the left and right directions after being connected. The bottom of the left slide seat 3 and the right slide seat 4 are both provided with a push plate 9, which is convenient for pushing the left slide seat and the right slide seat so that the latch and the slide groove are slidably connected.

[0018] Refer to the attached Figure 1 and 3 As shown, the right side surface of the left pulley assembly 1 and the left side surface of the right pulley assembly 2 are both provided with a threaded hole 10 with a semicircular cross-section. After the left pulley assembly 1 and the right pulley assembly 2 are connected, the semicircular threaded holes 10 on both sides are combined to form a circular threaded hole 10, and the threaded hole 10 is used for threaded connection to fix the connecting piece for the door leaf.

[0019] Refer to the attached Figure 4 and attached Figure 5As shown, the assembly process of the sliding door pulley that can be directly replaced without disassembling the track involved in the present invention is as follows: first, the left pulley assembly 1 and the right pulley assembly 2 are placed in the track 11 in sequence and in an offset manner; then, the push plate 9 is pulled to move the left pulley assembly 1 and / or the right pulley assembly 2 along the direction of the track 11, so that the pin 7 is inserted into the slide groove 6. When the end of the pin 7 contacts the limit 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 semicircular threaded holes 10 on the left pulley assembly 1 and the right pulley assembly 2 are combined 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 at the top of the connecting assembly 12 is screwed into the threaded hole 10, and the connecting assembly 12 is used to fix the door leaf. When the sliding door pulley that can be directly replaced without removing the track is damaged, it can be removed in the reverse order of installation. When replacing the pulley, there is no need to remove the track, and maintenance is convenient and quick.

[0020] The present invention is described in detail above in conjunction with the embodiments, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of 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 and is characterized by: It comprises a left pulley assembly and a right pulley assembly, and a pulley body is provided on the left pulley assembly or / and the right pulley assembly; the thickness of the left pulley assembly and the right pulley assembly are both smaller than the width of the track slot, 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 right pulley assembly after being connected is greater than the width of the track slot.

2. The sliding door pulley that can be directly replaced without disassembling the track according to claim 1, characterized in that: The left pulley assembly comprises a left slide seat, and a slide groove is arranged on the side of the left slide seat; the right pulley assembly comprises a right slide seat, and a latch is arranged on the side of the right slide seat; the latch is slidably matched with the slide groove.

3. The sliding door pulley that can be directly replaced without disassembling the track according to claim 2, characterized in that: The slide groove and latch are arranged along the direction of the track.

4. The sliding door pulley that can be directly replaced without disassembling the track according to claim 2, characterized in that: The cross sections of the slide groove and the latch are both isosceles trapezoidal, the slot width of the slide groove is smaller than the slot bottom width, and the left side width of the latch is larger than the right side width.

5. The sliding door pulley that can be directly replaced without disassembling the track according to claim 2, characterized in that: A limiting plate is provided at the end of the slide groove.

6. The sliding door pulley that can be directly replaced without disassembling the track according to claim 2, characterized in that: The bottoms of the left sliding seat and the right sliding seat are both provided with push plates.

7. The sliding door pulley that can be directly replaced without disassembling the track according to claim 1, characterized in that: The right side surface of the left pulley assembly and the left side surface of the right pulley assembly are both provided with threaded holes with semicircular cross-sections. After the left pulley assembly and the right pulley assembly are connected, the semicircular threaded holes on both sides are combined to form a circular threaded hole.

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

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