Anti-derailing structure of sliding door

Abstract

The utility model relates to the field of sliding door rails, and discloses a sliding door anti-derailing structure which comprises a frame and bottom rails, the bottom end in the frame is provided with two sets of bottom rails arranged in the length direction of the frame, the top ends of the bottom rails are connected with walking wheels in a rolling mode, and the top ends of the walking wheels are fixedly connected with bearing seats. A base is welded to the top end of the bearing seat, connecting rods are fixedly connected between the walking wheels, side cavities are formed in the upper portions of the two sides in the frame, the outer walls of the side cavities are each provided with a set of side sliding wheels, and straight screws are fixedly connected between the side sliding wheels and the side cavities. According to the anti-derailing structure of the sliding door, the bottom rail is arranged, the bearing seat in moving rolls on the bottom rail through the walking wheels, and the side rails on the two sides of the outer wall of the bearing seat are in rolling connection with the side pulleys fixed in the frame at the same time, so that the bearing seat rolls laterally and at the bottom; smooth movement is guaranteed, meanwhile, lateral inclination derailing is prevented, and the problem that derailing is prone to occurring is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sliding door rail technical field, concretely is a sliding door anti -derailing structure. BACKGROUND

[0002] Common sliding door rail structure mainly includes single rail and double rail two design forms. Single rail structure usually is composed of bottom rail and pulley, and the sliding door runs along the rail through the bottom pulley, and the structure is simple, and the installation is convenient, but the stability of the sliding door is lower, and the lateral anti -tilting ability is insufficient. And double rail structure needs to set up double groove, and when one rail is damaged, the other rail is also difficult to run.

[0003] The sliding door rail structure on the market at present has some defects, for example, the single rail structure depends on the rolling cooperation of the bottom rail and the pulley, when the sliding door is subjected to lateral force or vibration during operation, the pulley is easy to separate from the rail; when one rail of the double rail structure is not matched with the pulley or the sliding door frame is deformed, the phenomenon of misalignment is easy to appear, which leads to the sliding door jamming and even damage. Whether it is single rail or double rail structure, these defects will have adverse effects on the use experience and safety of the sliding door.

[0004] Therefore, a sliding door anti-derailing structure is needed to solve the above technical defects. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a sliding door anti-derailing structure to solve the problem of easy derailment damage in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a sliding door anti-derailing structure, including frame and bottom rail, the frame inside bottom end is provided with two groups of bottom rail arranged along its length direction, the bottom rail top end is connected with walking wheel and rolls, the walking wheel top end is fixedly connected with bearing seat, the bearing seat top end is welded with base, the walking wheel is fixedly connected with connecting rod between, the frame inside two sides top is side cavity, one group of side pulley is installed to the side cavity outer wall respectively, the side pulley and side cavity are fixedly connected with a letter screw between, the bearing seat outer wall is fixedly connected with fixed seat, the fixed seat place is processed with side rail, the side pulley and side rail constitute rolling connection.

[0007] As a further technical scheme of the utility model, one group of side cover is fixed on each side of the frame top end, the side cover near the bearing seat side is processed as an inclined plane, and the inclined plane and the two sides of the base have the same inclination angle.

[0008] As a further technical scheme of the utility model, the horizontal arrangement length of the side cover is same with the frame, and the frame bottom end is processed as a round corner.

[0009] As a further technical scheme of the utility model, the load bearing seat is 2cm higher than the highest point of the side cover on the top, and the distance between the two sides of the load bearing seat and the side cover is 1cm.

[0010] As a further technical scheme of the utility model, a sealing bolt is fixedly connected between the side cover and the frame, and the frame seals the side cavity through the side cover.

[0011] As a further technical scheme of the utility model, the frame is hollow in the lower part of the two sides, and the hollow groove is equal in length to the side cavity.

[0012] As a further technical scheme of the utility model, a spring groove is formed in the side wall of the hollow groove, a spring rod is transversely installed in the spring groove, and a locking nut is assembled between the spring rod and the spring groove.

[0013] As a further technical scheme of the utility model, a limiting seat is welded at the initial position and the moving end of the frame, and a rubber sheet is attached to the inner side of the limiting seat.

[0014] Compared with the prior art, the utility model has the advantages that the slide door anti-derailing structure not only ensures smooth movement and prevents lateral tilting and derailing, but also has good protection effect on the internal parts of the frame, and the cleaning and maintenance are faster, and the end point is assisted to be stable.

[0015] (1) The bottom track, side track, load bearing seat, walking wheel and side pulley are arranged in the frame, the load bearing seat rolls on the bottom track through the walking wheel during movement, the side track on the two sides of the outer wall of the load bearing seat is connected with the side pulley fixed in the frame to form a rolling connection, the load bearing seat forms double rolling in the lateral direction and the bottom, the movement is smooth, the lateral tilting and derailing are prevented, and the deviation caused by the movement vibration of the slide door is balanced.

[0016] (2) The side cover, sealing bolt and slope are arranged, the structure is opened to realize the disassembly of the internal parts, the side cover extends from the two sides of the top of the frame to the outer wall of the frame and is disassembled through the sealing bolt, when the side cover is closed, the water stains on the base are drained to the outside along the slope, the internal parts are prevented from rusting due to water accumulation in the frame, when the side cover is opened, the side pulley can be disassembled and replaced by removing the flat head screw, the entire load bearing seat can be taken out upward from the frame, the protection effect on the internal parts of the frame is good, and the cleaning and maintenance are faster.

[0017] (3) by setting the limit seat, spring rod, in the initial position and the end of the frame welding limit seat, in the limit seat corresponding position below, the frame is internally provided with spring rod, when the walking wheel moves to the end of the track, through the spring rod itself elastic force can be with it abuts, so that the spring rod auxiliary stable walking wheel, avoid the end of the collision caused by walking wheel unstable and cheap, when the bearing seat back pull then spring rod automatically disengaged with the walking wheel contact, realize the end of the auxiliary stability function. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view sectional structure schematic diagram of the utility model;

[0019] Figure 2 It is the frame side view structure schematic diagram of the utility model;

[0020] Figure 3 It is the walking wheel front view structure schematic diagram of the utility model;

[0021] Figure 4 It is the frame front view structure schematic diagram of the utility model.

[0022] In the drawing: 1, base; 2, bearing seat; 3, side cover; 4, closed bolt; 5, straight screw; 6, side pulley; 7, frame; 8, locking nut; 9, spring groove; 10, spring rod; 11, bottom track; 12, walking wheel; 13, connecting rod; 14, hollow groove; 15, side cavity; 16, fixed seat; 17, side track; 18, slope; 19, limit seat; 20, rubber sheet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4The utility model provides an embodiment: a sliding door anti -derailing structure, including frame 7 and bottom rail 11, frame 7 inside bottom end is provided with two groups of bottom rail 11 along its length direction arrangement, bottom rail 11 top end rolling connection has walking wheel 12, walking wheel 12 top fixedly connected with the bearing seat 2, bearing seat 2 top welding has the base 1, walking wheel 12 between fixedly connected with connecting rod 13, frame 7 inside both sides upper side is side cavity 15, side cavity 15 outer wall respectively installs a group of side pulley 6, side pulley 6 and side cavity 15 between fixedly connected with a letter screw 5, bearing seat 2 outer wall fixedly connected with fixed seat 16, and fixed seat 16 is processed with side rail 17, and side pulley 6 and side rail 17 constitute rolling connection;

[0025] Specifically, as Figure 1 、 Figure 2 、 Figure 3 And Figure 4 Indicated, the structure is provided with bottom rail 11 and side rail 17 in frame 7, and the bearing seat 2 in movement is rolled and travels on bottom rail 11 through walking wheel 12, and side rail 17 on the both sides of the outer wall of bearing seat 2 simultaneously constitutes rolling connection with the side pulley 6 fixed in frame 7, so that bearing seat 2 forms double rolling of lateral and bottom, guarantees the smooth movement while preventing lateral tilting and derailing, and the offset brought by the movement vibration of sliding door is balanced.

[0026] Frame 7 top both sides each fixedly connected with a group of side cover 3, and the side cover 3 near bearing seat 2 one side is processed as slope 18, and the slope 18 and the inclination of both sides of base 1 are consistent, and the horizontal arrangement length of side cover 3 is same with frame 7, and the bottom end of frame 7 is processed as round angle, and the top of bearing seat 2 is 2cm higher than the highest point of side cover 3, and the distance between both sides of bearing seat 2 and side cover 3 is 1cm, and the closed bolt 4 is fixedly connected between side cover 3 and frame 7, and frame 7 closes side cavity 15 through side cover 3;

[0027] Specifically, as Figure 1 、 Figure 2 And Figure 4 Indicated, the structure realizes the disassembly of internal parts by setting openable side cover 3 on frame 7, and the side cover 3 extends to the outer wall of frame 7 from both sides of the top of frame 7 and is disassembled through closed bolt 4, when the side cover 3 is closed, the water stain on base 1 can be excluded to the outside along slope 18, to avoid that the internal water of frame 7 causes the rust of parts, when the side cover 3 is opened, then side pulley 6 can be disassembled and replaced by removing letter screw 5, and the whole bearing seat 2 can be taken out upwards from frame 7.

[0028] The hollow groove 14 is equal in length to the side cavity 15, and the spring groove 9 is processed on the side wall of the hollow groove 14. The spring rod 10 is transversely installed in the spring groove 9, and the locking nut 8 is assembled between the spring rod 10 and the spring groove 9. The limit seat 19 is welded at the initial position and the moving end of the frame 7, and the rubber sheet 20 is bonded on the inner side of the limit seat 19.

[0029] Specifically, as shown in Figure 1 and Figure 2 The limit seat 19 is welded at the initial position and the moving end of the frame 7. The spring rod 10 is arranged inside the frame 7 below the corresponding position of the limit seat 19. When the walking wheel 12 moves to the end of the bottom track 11, the spring rod 10 can abut against it through its own elastic force, so that the spring rod 10 assists in stabilizing the walking wheel 12, avoids unstable walking wheel 12 caused by end collision, and is convenient when the load-bearing seat 2 is pulled back. The spring rod 10 automatically separates from the contact with the walking wheel 12.

[0030] Working principle: The structure is provided with the bottom track 11 and the side track 17 in the frame 7. The moving load-bearing seat 2 rolls on the bottom track 11 through the walking wheel 12. The side track 17 on both sides of the outer wall of the load-bearing seat 2 and the side pulley 6 fixed in the frame 7 simultaneously constitute a rolling connection, so that the load-bearing seat 2 forms double rolling of the side and the bottom, ensures smooth movement, prevents lateral tilting and derailment, balances the deviation caused by the movement vibration of the sliding door, and realizes the end auxiliary stability function. The side cover 3 extends from both sides of the top end of the frame 7 to the outer wall of the frame 7, and is disassembled through the closure bolt 4. When the side cover 3 is closed, the water stains on the base 1 can be drained to the outside along the slope 18, avoiding water accumulation in the frame 7 to cause parts rust. When the side cover 3 is opened, the side pulley 6 can be disassembled and replaced by removing the flat head screw 5. The entire load-bearing seat 2 can be taken out upward from the frame 7.

[0031] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A sliding door anti-derailment structure, comprising a frame (7) and a bottom track (11), characterized in that: The frame (7) has two sets of bottom rails (11) arranged along its length at the bottom. The bottom rails (11) are connected to the top of the bottom rails (12) by rolling wheels. The top of the wheels (12) is fixedly connected to the top of the load-bearing seats (2). The top of the load-bearing seats (2) is welded to the top of the base (1). The wheels (12) are fixedly connected to each other by connecting rods (13). The upper sides of the frame (7) are side cavities (15). A set of side pulleys (6) are installed on the outer wall of the side cavity (15). A slotted screw (5) is fixedly connected between the side pulleys (6) and the side cavity (15). The outer wall of the load-bearing seats (2) is fixedly connected to a fixed seat (16). A side rail (17) is machined at the fixed seat (16). The side pulleys (6) and the side rails (17) form a rolling connection.

2. The sliding door anti-derailment structure according to claim 1, characterized in that: A set of side covers (3) are fixed on each side of the top of the frame (7). The side cover (3) is processed into a slope (18) on the side near the load-bearing seat (2). The slope (18) has the same inclination angle as the two sides of the base (1).

3. The sliding door anti-derailment structure according to claim 2, characterized in that: The side cover (3) is horizontally arranged with the same length as the frame (7), and the bottom end of the frame (7) is machined to be rounded.

4. The sliding door anti-derailment structure according to claim 1, characterized in that: The top of the load-bearing seat (2) is 2cm higher than the highest point of the side cover (3), and the distance between the two sides of the load-bearing seat (2) and the side cover (3) is 1cm.

5. The sliding door anti-derailment structure according to claim 2, characterized in that: A sealing bolt (4) is fixedly connected between the side cover (3) and the frame (7), and the frame (7) closes the side cavity (15) through the side cover (3).

6. The sliding door anti-derailment structure according to claim 1, characterized in that: The frame (7) has hollow grooves (14) on both sides below the interior, and the hollow grooves (14) are the same length as the side cavity (15).

7. The sliding door anti-derailment structure according to claim 6, characterized in that: The hollow groove (14) has a spring groove (9) machined on its side wall. A spring rod (10) is installed horizontally in the spring groove (9). A locking nut (8) is assembled between the spring rod (10) and the spring groove (9).

8. The sliding door anti-derailment structure according to claim 1, characterized in that: The frame (7) is welded with a limiting seat (19) at its initial position and at the end of its movement. A rubber sheet (20) is glued to the inner side of the limiting seat (19).

Images