Slide rail structure for self-returning type sliding door

Abstract

The utility model relates to the technical field of sliding doors, in particular to a sliding rail structure for a self-returning type sliding door, a supporting rail comprises a batten clamped in a cavity at the bottom of a door frame, flexible wing parts are arranged on the front side and the rear side of the batten respectively, and a strip-shaped clamping groove is formed in the middle of the top face of the batten in the axial direction of the batten; and the sliding strip is clamped in the strip-shaped clamping groove and is matched with a sliding block at the bottom of the sliding door in a sliding and clamping manner. The problems that a sliding rail structure used by a sliding door is difficult to disassemble and assemble and poor in sealing performance are well solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sliding door technical field, concretely is a sliding rail structure for self return type sliding door. BACKGROUND

[0002] For the showcase, commonly equipped with the sliding door of installation. The commonly used sliding door generally includes the door frame, the door plate installed in the door frame in pairs and the sliding rail structure installed at the bottom of the door frame.

[0003] Traditionally, the sliding rail structure matched with the sliding door is generally an integral structure fixed at the bottom cavity of the door frame. When the sliding door is used for a long time, the surface of the sliding rail will be abraded, so that the opening and closing operation of the door plate becomes sluggish, at this time, it is difficult to replace the sliding rail structure. In addition, the traditional sliding rail structure often also has the problem of poor sealing, which is easy to cause water or dust to enter the bottom cavity of the door frame from the front and rear gaps of the sliding rail structure. In addition, the sliding rail structure is fixed in the bottom cavity of the door frame by screws, so it is difficult to clean the water and dust entering the bottom cavity of the door frame.

[0004] Therefore, there is an urgent need for a sliding rail structure that is easy to disassemble and replace and has good sealing performance to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a sliding rail structure for self return type sliding door, which solves the problem of difficult disassembly and poor sealing performance of the sliding rail structure used in the current sliding door.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sliding rail structure for self return type sliding door, the support rail includes a batten clamped in the bottom cavity of the door frame, the front and rear sides of the batten are respectively provided with flexible wing parts, and a strip-shaped clamping groove is arranged in the middle of the top surface of the batten along the axial direction; the sliding strip is clamped in the strip-shaped clamping groove, and the sliding strip is matched with the sliding block at the bottom of the sliding door through sliding clamping.

[0007] Preferably, a plurality of support blocks clamped in the bottom cavity of the door frame are further included, a strip-shaped recess is arranged in the middle of the top surface of the support block, and a strip-shaped plug integrally formed with the strip-shaped recess is arranged in the middle of the bottom surface of the batten.

[0008] Preferably, the bottom surface of the batten is integrally formed with a batten at the front and rear ends, respectively, and a strip-shaped protrusion is arranged at the bottom end of the rear wall of the front batten and the bottom end of the front wall of the rear batten, respectively.

[0009] Preferably, a through counterbore is arranged in the vertical direction at the position corresponding to the strip-shaped recess of the support block.

[0010] Preferably, the bottom surface of the support block is provided with a side cavity along the axial direction near the front and rear sides, respectively, and the bottom end of the front and rear walls of the support block is provided with a strip-shaped clamping block, respectively.

[0011] Preferably, the slide bar is made of polytetrafluoroethylene, and the support rail is made of one of PVC, ABS, PP, PC and glass fiber extruded material.

[0012] Preferably, the heights of the plurality of support blocks are sequentially increased.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The slide rail structure for the self-return sliding door is composed of parts convenient for flexible clamping assembly, and is convenient for flexible disassembly and assembly, in particular, the slide bar supporting the sliding door plate bottom block can be conveniently replaced; in addition, the slide rail structure can be conveniently removed as a whole to clean the door frame bottom cavity.

[0015] 2. The slide rail structure for the self-return sliding door is provided with a flexible wing part on the front and rear sides of the support rail, respectively, and the flexible wing part can be well attached to the front and rear walls of the door frame bottom cavity, thereby greatly improving the sealing effect to avoid water or dust from entering the door frame bottom cavity. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the support rail of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the low-end support block of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the high-end support block of the utility model.

[0020] In the drawing: 1 - support rail; 1.1 - board; 1.2 - strip-shaped clamping groove; 1.3 - flexible wing part; 1.4 - strip-shaped insertion block; 1.5 - edge strip; 1.6 - strip-shaped protrusion;

[0021] 2 - slide bar;

[0022] 3 - support block; 3.1 - strip-shaped recess; 3.2 - side cavity; 3.3 - strip-shaped clamping block; 3.4 - through-hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0024] Embodiment one, please refer to Figures 1-2 The present utility model provides a technical scheme: a slide rail structure for a self-returning sliding door, the supporting rail 1 comprises a batten 1.1 clamped in the cavity at the bottom of the door frame, the front and rear sides of the batten 1.1 are respectively provided with flexible wing parts 1.3, and a strip-shaped clamping groove 1.2 is arranged in the middle of the top surface of the batten 1.1 along the axial direction; a slide strip 2 is clamped in the strip-shaped clamping groove 1.2, and the slide strip 2 is slidingly connected with the sliding block at the bottom of the sliding door. The slide strip 2 is made of polytetrafluoroethylene, and the supporting rail 1 is made of one of PVC, ABS, PP, PC and glass fiber extrusion materials. The bottom surface of the batten 1.1 is integrally formed with a batten 1.5 at the front and rear ends, respectively, and the rear wall bottom end of the front batten 1.5 and the front wall bottom end of the rear batten 1.5 are respectively provided with strip-shaped protrusions 1.6.

[0025] That is, the bottom end of the batten 1.5 and the strip-shaped protrusions 1.6 are easily clamped in the strip-shaped notches arranged on the front and rear sides of the cavity at the bottom of the door frame, so as to facilitate the dismounting and mounting operation of the whole supporting rail 1. In addition, when the supporting rail 1 is clamped in the cavity at the bottom of the door frame, the flexible wing parts 1.3 can be closely attached to the front and rear walls of the cavity at the bottom of the door frame, so as to enhance the sealing performance. The slide strip 2 is in a cylindrical strip-shaped structure, and the strip-shaped clamping groove 1.2 is in a groove structure with a semicircular cross section, so that the slide strip 2 can be easily dismounted and mounted with the strip-shaped clamping groove 1.2. Since the slide strip 2 is directly used for supporting the sliding block at the bottom of the sliding door panel and is the main wearing part, the above structure facilitates the dismounting and replacement of the slide strip 2 when it is seriously worn,

[0026] Embodiment two, please refer to Figures 1-4 On the basis of embodiment one, a plurality of supporting blocks 3 clamped in the cavity at the bottom of the door frame are further included, the top surface of the supporting block 3 is provided with a strip-shaped groove 3.1, and the middle part of the bottom surface of the batten 1.1 is integrally formed with a strip-shaped plug 1.4 matched with the strip-shaped groove 3.1. That is, the plurality of supporting blocks 3 are first clamped at the bottom end of the cavity at the bottom of the door frame, and then the supporting rail 1 is mounted through the cooperation of the strip-shaped plug 1.4 and the strip-shaped groove 3.1.

[0027] In order to realize the automatic return of the sliding door panel after being opened, the heights of the plurality of supporting blocks 3 are sequentially increased in sequence. That is, the heights of the supporting blocks 3 are sequentially decreased in the door closing direction of the sliding door panel, so that the supporting rail 1 and the slide strip 2 are arranged in an inclined direction. After the sliding door panel is opened, under the action of the weight component force of the sliding door panel, the sliding door panel can automatically slide and recover to the closed state.

[0028] For the assembly of the support block 3 and the bottom cavity of the door frame, there are two ways as follows:

[0029] 1) The position corresponding to the strip-shaped groove 3.1 of the support block 3 is provided with a through hole 3.4 in the vertical direction. That is, the support block 3 is fixed on the bottom surface of the bottom cavity of the door frame by screwing through the through hole 3.4.

[0030] 2) The position close to the front and rear sides of the bottom surface of the support block 3 is respectively provided with a side cavity 3.2 in the axial direction, and the bottom end of the front and rear walls of the support block 3 is respectively provided with a strip-shaped clamping block 3.3. That is, the front and rear sides of the bottom of the bottom cavity of the door frame are respectively provided with a strip-shaped notch matched with the strip-shaped clamping block 3.3. Due to the arrangement of the side cavity 3.2, the strip-shaped clamping block 3.3 can be compressed inward, so as to facilitate the strip-shaped clamping block 3.3 to be clamped into the strip-shaped notch, and also facilitate the strip-shaped clamping block 3.3 to be separated from the strip-shaped notch.

[0031] It should be noted that the relational terms such as first and second and the like in the present text are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A slide rail structure for a self-returning sliding door, characterized by, The utility model relates to a support rail (1) which comprises a strip (1.1) fitted in the cavity of the door frame bottom, the front and back sides of the strip (1.1) are respectively provided with flexible wing parts (1.3), and the middle part of the top surface of the strip (1.1) is provided with a strip-shaped clamping groove (1.2) along the axial direction. A sliding strip (2) is fitted in the strip-shaped clamping groove (1.2), and the sliding strip (2) is matched with the sliding block of the sliding door bottom through sliding clamping. The utility model also comprises a plurality of support blocks (3) fitted in the cavity of the door frame bottom, the middle part of the top surface of the support block (3) is provided with a strip-shaped recess (3.1), and the middle part of the bottom surface of the strip (1.1) is integrally formed with a strip-shaped insertion block (1.4) matched with the strip-shaped recess (3.1).

2. The slide rail structure for a self-returning sliding door according to claim 1, wherein: The bottom end of the rear wall of the front edge strip (1.5) and the bottom end of the front wall of the rear edge strip (1.5) are respectively provided with strip-shaped protrusions (1.6).

3. The track structure for a self-closing sliding door of claim 1, wherein: The support block (3) is provided with a through countersunk hole (3.4) along the vertical direction at the position corresponding to the strip-shaped recess (3.1).

4. The track structure for a self-closing sliding door of claim 2, wherein: The bottom surface of the support block (3) is respectively provided with a side cavity (3.2) along the axial direction at the positions close to the front and back sides, and the bottom end of the front and back walls of the support block (3) is respectively provided with a strip-shaped clamping block (3.3).

5. The track structure for a self-closing sliding door of claim 2, wherein: The sliding strip (2) is made of polytetrafluoroethylene, and the support rail (1) is made of one of the following extrusion materials: PVC, ABS, PP, PC and glass fiber.

6. The track structure for a self-closing sliding door of claim 1, wherein: The heights of the plurality of support blocks (3) sequentially increase in sequence.

7. The track structure for a self-closing sliding door of claim 2, wherein: ​

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