Double sliding door system

Abstract

This utility model discloses a double-opening sliding door system, including a support rail and door leaves symmetrically arranged on the left and right. One side wall of the support rail has a laterally open guide groove, and the bottom has a first sliding groove. The front and rear sides of the top of the door leaves are respectively provided with a roller assembly and a guide assembly. The roller assembly has at least two rollers, which are located within the guide groove. When the door leaves are closed, the rollers of the roller assembly are located in the middle of the support rail, and the rollers of the guide assembly are located at the ends of the support rail, contacting the first sliding groove. This utility model utilizes the roller assembly and guide wheel assembly so that when the door leaves are in the fully open state, the rear end of the door leaves detaches from the upper support rail, shortening the length of the upper support rail and reducing the space occupied by the support drive mechanism.

Description

Technical Field

[0001] This utility model relates to a door leaf, and more particularly to a double-opening sliding door system. Background Technology

[0002] The inner door system's load-bearing drive mechanism involves a heavy and tall door leaf. To ensure door closure stability, at least two sets of door-carrying frames are typically installed on either side of the top of the door leaf or at a certain distance from the top, or the lateral length of the door-carrying frames is increased. Consequently, the load-bearing guide rails providing limit positions for the door-carrying frames need to be extended, resulting in longer guide rails that occupy significant vehicle space, as illustrated in CN 217400614 U's description of a load-bearing drive mechanism for an electric sliding door on a rail vehicle. Reducing the distance between the door-carrying frames can decrease the length of the load-bearing guide rails, but this reduces the door leaf constraint strength, causing door leaf vibration. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a double-opening sliding door system that reduces the length of the load-bearing guide rail while ensuring the constraint strength of the door leaf.

[0004] Technical solution: The present invention discloses a double-opening sliding door system, including a support rail and door leaves symmetrically arranged on the left and right. One side wall of the support rail is provided with a guide groove with a lateral opening, and the bottom is provided with a first sliding groove. The front and rear sides of the top of the door leaf are respectively provided with a roller assembly and a guide assembly. The roller assembly has no less than two rollers, and the rollers of the roller assembly are located in the guide groove. When the door leaf is closed, the rollers of the roller assembly are located in the middle of the support rail, and the rollers of the guide assembly are located at the end of the support rail and in contact with the first sliding groove.

[0005] Preferably, the roller assembly has at least two rollers. When the door is open, the front side of the door is connected to the load-bearing guide rail only through the roller assembly; to ensure sufficient restraint, the number of rollers is increased.

[0006] Preferably, the upper and lower sides of the guide groove and the top of the first sliding groove are both arc-shaped surfaces.

[0007] Preferably, the top of the bearing guide rail is provided with an inverted T-shaped groove for connecting the drive mechanism.

[0008] Preferably, the double sliding door system includes a lower guide rail, and the bottom of the door leaf is provided with a second sliding groove, which is slidably connected to the lower guide rail.

[0009] Preferably, the bottom rear side of the door panel of the door leaf is embedded with a guide wheel assembly, and the guide wheel of the guide wheel assembly is provided with an annular groove that matches the lower guide rail.

[0010] Preferably, rubber sliders are provided on both sides of the second groove.

[0011] Preferably, the double sliding door system includes a drive mechanism, which includes a belt and a pulley, with the belt sleeved on the pulley and a roller assembly connected to the belt.

[0012] Preferably, the lateral length of the roller assembly and the guide assembly is less than half the width of the door leaf.

[0013] Preferably, the front side of the door leaf is provided with finger protector strips, and the left and right symmetrically arranged door leaves are closed, with the left and right finger protector strips joined together.

[0014] Beneficial effects: Compared with the prior art, this utility model has the following advantages: 1. Reduces the length of the load-bearing guide rail while ensuring the constraint strength of the door leaf: Roller assemblies and guide wheel assemblies are respectively set on the front side of the top and the rear side of the bottom of the door leaf. When the door leaf is in the open position, the rear end of the door leaf is separated from the upper load-bearing guide rail, shortening the length of the load-bearing guide rail to almost the width of the left and right door leaves, reducing the space occupied by the load-bearing drive mechanism, effectively reducing the vehicle load-bearing drive space, and improving the vehicle space utilization rate; 2. When the door leaf is closed, the roller assembly and guide assembly constrain the door leaf on both sides of the door leaf, and the structure is safe and reliable; 3. Has good application prospects in the inner end door system of rail vehicles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the closed state structure of the double-opening sliding door system of this utility model;

[0016] Figure 2 This is a schematic diagram of the double-opening sliding door system of this utility model in the open state;

[0017] Figure 3 This is a schematic diagram of the load-bearing drive mechanism of a double sliding door system;

[0018] Figure 4 yes Figure 3 Enlarged view of some of the structures in the image;

[0019] Figure 5 This is a schematic diagram of the door leaf structure of a double sliding door system;

[0020] Figure 6 This is a schematic diagram of the top structure of a double sliding door system;

[0021] Figure 7 yes Figure 6 Enlarged view of some of the structures in the image;

[0022] Figure 8 This is a schematic diagram of the bottom structure of a double sliding door system;

[0023] Figure 9 This is a schematic diagram of the front structure of a double sliding door system. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0025] like Figure 1 , Figure 2 The double sliding door includes a load-bearing drive mechanism 1, door panels 2 and 3, and a lower guide rail 4. The load-bearing drive mechanism 1 is located at the top of the door panels, used to drive the door panels to move and constrain the top of the door panels. The lower guide rail 4 is located at the bottom of the door panels 2, supporting the door panels and constraining their movement trajectory. Door panels 2 and 3 are symmetrically arranged on the left and right sides and have the same structure. The following description of the door panel structure will use door panel 2 as an example.

[0026] like Figure 3 , Figure 4 The load-bearing drive mechanism 1 includes a load-bearing guide rail 101 and a drive mechanism. Along its length, the load-bearing guide rail 101 has a guide groove with a transverse opening on one side (side wall) and a sliding groove 1012 at its bottom. Figure 5 The top front and rear sides (with the vertical center line of the door leaf as a reference) of the door panel 201 of door leaf 2 are respectively provided with roller assembly 202 and guide assembly 203. The lateral length L of roller assembly 202 and guide assembly 203 is less than half the width of the door leaf (L < 0.5W), and further, L can be less than 0.3W. Roller assembly 202 and guide assembly 203 are connected to door panel 201 through brackets. The rollers of roller assembly 202 can enter the guide groove, and the height of guide assembly 203 is lower than that of roller assembly 202. Figure 6 , Figure 7 During assembly, the rollers of the roller assembly 202 enter the guide groove from the end of the guide groove, so that the door leaf can be hooked onto the support guide rail 101. The roller assembly 202 rolls along the guide groove, so that the door leaf moves to the open position or the closed position.

[0027] When the door is fully closed, the roller assembly 202 is located in the middle of the guide groove, and the rollers of the guide assembly 203 are located at the end of the slide groove 1012, contacting the slide groove 1012. Both sides of the door are connected to the support rail 2 via the guide assembly 203, the roller assembly 202, and the support rail 2. Simultaneously, the roller assembly 202 and the guide assembly 203 contact the upper and lower sides of one side wall of the support rail 101, effectively constraining the door and preventing it from shaking or tilting, thus ensuring stability. When the door is fully open, the roller assembly 202 is located at the end of the guide groove, and the guide assembly 203 is disengaged from the slide groove 1012. The front of the door is connected to the support rail only by the roller assembly 202, shortening the length of the support rail 101. To ensure the stability of the door in the fully open state, the roller assembly 202 has at least two rollers to increase its constraint capacity.

[0028] like Figure 4The upper and lower sides 1011 of the guide groove and the top of the slide 102 are both arc-shaped surfaces to match the shape of the roller assembly 202. The top of the support guide rail 101 is provided with an inverted T-shaped groove, which is used to install the drive mechanism.

[0029] like Figure 3 The drive mechanism includes a reducer, pulleys, and belts. The pulleys are connected to both ends of the bearing guide rail 101 via brackets and inverted T-slots. The belt 102 is connected to the pulleys, and the motor is connected to one of the two pulleys. Belt clips 104 are connected to the belts 102 on both sides of the pulleys. The belt clips 104 are connected to the bracket of the roller assembly 202 via connecting plates 103 to drive the door leaf to move.

[0030] like Figure 5 , Figure 8 The bottom of the door panel 201 is provided with a sliding groove, and rubber sliders 205 are provided on both sides of the sliding groove. The lower guide rail 4 is provided with raised ridges. The sliding groove, sliders 205 and raised ridges cooperate to make the door leaf and the lower guide rail 4 slide together to form a guide.

[0031] The bottom rear side of the door panel 201 is embedded with a guide wheel assembly 204. The guide wheel of the guide wheel assembly 204 is provided with an annular groove. After assembly, the guide wheel of the guide wheel assembly 204 can roll along the raised edge of the lower guide rail 4. When the door is fully opened, the guide wheel of the guide assembly 203 is located at the end of the lower guide rail 4.

[0032] like Figure 9 Finger guard strips 206 and 306 are respectively installed on the front side walls of the left and right door panels. When the door panels are closed (in the fully closed position), the finger guard strips 206 and 306 interlock to prevent injury to personnel and also provide a good seal. Figure 1 , Figure 2 Handles are installed on the left door leaf 2 and the right door leaf 3, allowing passengers to open and close the doors.

Claims

1. A double-opening sliding door system, comprising a load-bearing guide rail (101) and door leaves symmetrically arranged on the left and right, characterized in that, Along the length direction, one side wall of the bearing guide rail (101) is provided with a guide groove with a lateral opening, and the bottom is provided with a first sliding groove (1012). The front and rear sides of the top of the door leaf are respectively provided with a roller assembly and a guide assembly. The roller of the roller assembly is located in the guide groove. When the door leaf is closed, the roller of the roller assembly is located in the middle of the bearing guide rail (101), and the roller of the guide assembly is located at the end of the bearing guide rail (101) and in contact with the first sliding groove (1012).

2. The double-opening sliding door system according to claim 1, characterized in that, The roller assembly has no fewer than two rollers.

3. The double-opening sliding door system according to claim 1, characterized in that, The upper and lower sides (1011) of the guide groove and the top of the first slide groove (1012) are both arc-shaped surfaces.

4. The double-opening sliding door system according to claim 1, characterized in that, The top of the bearing guide rail (101) is provided with an inverted T-shaped groove for connecting the drive mechanism.

5. The double-opening sliding door system according to claim 1, characterized in that, The double sliding door system includes a lower guide rail (4), and the bottom of the door leaf is provided with a second sliding groove, which is slidably connected to the lower guide rail (4).

6. The double-opening sliding door system according to claim 5, characterized in that, The bottom rear side of the door panel of the door leaf is embedded with a guide wheel assembly (204), and the guide wheel of the guide wheel assembly (204) is provided with an annular groove that matches the lower guide rail (4).

7. The double-opening sliding door system according to claim 5, characterized in that, The second groove is provided with rubber sliders (205) on both sides.

8. The double-opening sliding door system according to claim 1, characterized in that, The double sliding door system includes a drive mechanism, which includes a belt (102) and a pulley. The belt (102) is sleeved on the pulley, and the roller assembly is connected to the belt.

9. The double-opening sliding door system according to claim 1, characterized in that, The lateral length of the roller assembly and guide assembly is less than half the width of the door leaf.

10. The double-opening sliding door system according to any one of claims 1 to 9, characterized in that, The front side of each door leaf is provided with finger protector strips. When the door leaves are closed, the left and right finger protector strips are interlocked.

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