Door leaf limiting structure of sliding plug door

Abstract

The utility model relates to the technical field of sliding plug doors, in particular to a door leaf limiting structure of a sliding plug door, which comprises a door leaf, a guide component and a limiting component, an installation support is arranged on one side of the door leaf, the guide component is arranged on one side of the installation support, a limiting block corresponding to the door leaf is connected in the guide component in a sleeved mode, and the limiting component is connected with the door leaf. A limiting assembly is rotationally connected into the limiting block. The limiting assembly comprises a rotating column, the limiting block is connected with the rotating column in a sleeving mode, locking blocks are welded to the outer surface of the rotating column at equal intervals through bolts, and a driven gear is connected to the position, located between the locking blocks, of the periphery of the rotating column through bolts; by additionally arranging the automatic locking structure and utilizing the modes of sliding connection, meshing connection and insertion limiting, the door leaf is automatically locked while being limited, the closing stability of the door leaf is improved, the door leaf is not prone to sliding displacement caused by vibration of a vehicle body, and therefore the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, specifically to a door leaf limiting structure for a sliding door. Background Technology

[0002] A sliding door is a type of vehicle door that can be closed and opened. It is widely used in rail transportation and other fields. When closed, the sliding door can form a good seal between the door leaf and the vehicle body, effectively isolating external noise, dust and wind and rain, and providing passengers with a comfortable riding environment. During vehicle operation, the vehicle body will vibrate, and the lower part of the sliding door is prone to vibration, sliding and other changes in its relative position with the vehicle body. Therefore, a limiting structure is needed to keep the door leaf and the vehicle body in a relatively fixed state.

[0003] Currently, door leaf limiting structures lack automatic locking mechanisms. Typically, due to rigid contact, these structures are prone to wear and tear over time, affecting stability. Furthermore, being often integrated, they require complete replacement upon damage, resulting in less than ideal performance. Therefore, this paper proposes a door leaf limiting structure for sliding doors that incorporates an automatic locking mechanism. Utilizing sliding, meshing, and plug-in limiting methods, the structure automatically locks the door leaf while simultaneously limiting its movement, improving closing stability and reducing the likelihood of sliding displacement due to vehicle vibration, thus enhancing usability. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a door leaf limiting structure for a sliding door, which can automatically lock the door leaf while limiting it through sliding connection, meshing connection, or plug-in limiting, thereby improving the performance.

[0005] The technical solution adopted by this utility model to solve its technical problem is a door leaf limiting structure for a sliding door, including a door leaf, a guide component and a limiting component. A mounting bracket is provided on one side of the door leaf, and a guide component is provided on one side of the mounting bracket. A limiting block corresponding to the door leaf is sleeved and connected inside the guide component, and a limiting component is rotatably connected inside the limiting block.

[0006] The limiting component includes a rotating column, and a limiting block is sleeved and connected to the rotating column. Locking blocks are equidistantly welded to the outer surface of the rotating column by bolts. A driven gear is bolted to the periphery of the rotating column between the locking blocks, and the limiting block is rotatably connected to the driven gear through a slot.

[0007] By adopting the above technical solution, an automatic locking mechanism can be added. By using sliding connection, meshing connection, and plug-in limit method, the door is automatically locked at the same time as the door is closed, so as to avoid sliding and shaking caused by vehicle vibration.

[0008] Specifically, a reset gear is rotatably connected to one side of the driven gear within the limiting block via a rotating shaft, and the reset gear meshes with the driven gear. Rotating seats are provided at both the top and bottom of the limiting block, and one end of the rotating seat is connected to the reset gear via a bolt.

[0009] By adopting the above technical solution, an auxiliary manual reset mechanism can be added. The manual reset method facilitates quick disassembly by manual operation. The structure is simple, the cost is low, and the use is more convenient and flexible.

[0010] Specifically, a coil spring is sleeved around the outer periphery of the rotating column between the driven gears, and one end of the coil spring is connected to the rotating column by welding, while the other end of the coil spring is connected to the limiting block by a slot. Gaskets are fixedly installed on the outer periphery of the rotating column at the top and bottom of the limiting block by slots.

[0011] By adopting the above technical solution, the coil spring can automatically reset the rotating column by using its elasticity while the door is opening.

[0012] Specifically, the guide assembly includes a guide sleeve, which is connected to a mounting bracket by bolts. A sliding seat is slidably connected inside the guide sleeve, and one end of a limiting block is connected to the sliding seat by bolts. Both the top and bottom of the sliding seat are provided with protrusions. A limiting groove corresponding to the protrusions is opened on the inner surface of the guide sleeve. The other end of the guide sleeve is sleeved with a connecting rod, and one end of the connecting rod is connected to the sliding seat by bolts. A compression spring is sleeved inside the guide sleeve around the periphery of the connecting rod.

[0013] By adopting the above technical solutions, the guide sleeve, sliding seat, protrusion, limiting groove, pull rod and compression spring can be pushed by elastic force, improving the flexibility of the limiting structure and automatically adapting to the usage position of the door leaf.

[0014] Specifically, a slide rail is provided on the inner side of the door leaf, and a limiting block is slidably connected to the slide rail. Limiting slide rails are provided at the top and bottom of the slide rail. The limiting slide rails are provided on both sides with slots corresponding to the locking block. A toothed section corresponding to the driven gear is provided on one side of the slide rail.

[0015] By adopting the above technical solution, the slide, the limiting slide and the slot are convenient to cooperate with the limiting block and the locking block to perform sliding locking action, and the threaded section is convenient to cooperate with the driven gear to perform auxiliary transmission locking action.

[0016] The beneficial effects of this utility model are:

[0017] (1) The door leaf limiting structure of the plug door described in this utility model can add an automatic locking mechanism by setting a limiting block, rotating column, locking block and driven gear. By using sliding connection, meshing connection and plug-in limiting method, the door leaf can be automatically locked at the same time as the closing action is completed, so as to avoid sliding and shaking caused by vehicle vibration. The structure is simple and easy to operate, and the use is more reasonable and stable.

[0018] (2) The door leaf limiting structure of the sliding door described in this utility model can add an auxiliary manual reset mechanism by setting a limiting block, a reset gear and a rotating seat. The manual reset method facilitates quick disassembly by manual operation. The structure is simple, the cost is low and the use is more convenient and flexible. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the limiting block of this utility model;

[0022] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of the guide component of this utility model;

[0024] Figure 5 This is a schematic cross-sectional view of the door leaf structure of this utility model;

[0025] In the diagram: 1. Door leaf; 101. Slide rail; 102. Limiting slide rail; 103. Slot; 104. Toothed section; 2. Mounting bracket; 3. Guide assembly; 301. Guide sleeve; 302. Sliding seat; 303. Protrusion; 304. Limiting groove; 305. Pull rod; 306. Compression spring; 4. Limiting block; 401. Reset gear; 402. Rotating seat; 5. Limiting assembly; 501. Rotating column; 502. Locking block; 503. Driven gear; 504. Coil spring; 505. Washer. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] To facilitate automatic locking of the door leaf while simultaneously limiting its movement via sliding connections, interlocking connections, or plug-in locking mechanisms, thereby improving usability, such as... Figure 1-3As shown, the door leaf limiting structure of the sliding door of this utility model includes a door leaf 1, a guide component 3 and a limiting component 5. A mounting bracket 2 is provided on one side of the door leaf 1, and a guide component 3 is provided on one side of the mounting bracket 2. A limiting block 4 corresponding to the door leaf 1 is sleeved and connected inside the guide component 3, and the limiting component 5 is rotatably connected inside the limiting block 4.

[0028] The limiting component 5 includes a rotating column 501, and a limiting block 4 is sleeved and connected to the rotating column 501. Locking blocks 502 are equidistantly welded to the outer surface of the rotating column 501 by bolts. A driven gear 503 is bolted to the periphery of the rotating column 501 between the locking blocks 502, and the limiting block 4 is rotatably connected to the driven gear 503 through a slot.

[0029] In use, by rotating the column 501, locking block 502, driven gear 503 and limit block 4, an automatic locking mechanism can be added. By using sliding connection, meshing connection and plug-in limit, the door is automatically locked when the closing action is completed, so as to avoid sliding and shaking caused by vehicle body vibration.

[0030] To improve the flexibility of use, for example, such as Figure 1 , Figure 2 As shown, the present invention also includes a reset gear 401 rotatably connected to one side of the driven gear 503 within the limiting block 4 via a rotating shaft, and the reset gear 401 meshes with the driven gear 503. The top and bottom of the limiting block 4 are provided with rotating seats 402, and one end of the rotating seat 402 is connected to the reset gear 401 by bolts.

[0031] In use, the reset gear 401 and the rotating seat 402 can be used to add an auxiliary manual reset mechanism, which allows for quick manual disassembly. The structure is simple, the cost is low, and the use is more convenient and flexible.

[0032] For example, such as Figure 3 As shown, the present invention also includes a coil spring 504 sleeved on the periphery of the rotating column 501 between the driven gears 503, and one end of the coil spring 504 is connected to the rotating column 501 by welding, and the other end of the coil spring 504 is connected to the limiting block 4 through a slot. The top and bottom of the limiting block 4 on the periphery of the rotating column 501 are fixedly installed with gaskets 505 through slots.

[0033] During use, the coil spring 504 can automatically reset the rotating column 501 by using its elasticity to drive the door opening action.

[0034] For example, such as Figure 4As shown, the present invention also includes the following: the guide assembly 3 includes a guide sleeve 301, and the guide sleeve 301 is connected to the mounting bracket 2 by bolts. A sliding seat 302 is slidably connected inside the guide sleeve 301, and one end of the limiting block 4 is connected to the sliding seat 302 by bolts. The top and bottom of the sliding seat 302 are provided with protrusions 303. A limiting groove 304 corresponding to the protrusions 303 is opened on the inner surface of the guide sleeve 301. The other end of the guide sleeve 301 is sleeved and connected to a pull rod 305, and one end of the pull rod 305 is connected to the sliding seat 302 by bolts. A compression spring 306 is sleeved inside the guide sleeve 301 around the pull rod 305.

[0035] In use, the guide sleeve 301, sliding seat 302, protrusion 303, limiting groove 304, pull rod 305 and compression spring 306 can be used to push with elastic force, which improves the flexibility of the limiting structure and automatically adapts to the use position of the door leaf 1.

[0036] For example, such as Figure 5 As shown, the present invention also includes a slide rail 101 provided on the inner side of the door leaf 1, and a limiting block 4 slidably connected to the slide rail 101. Limiting slide rails 102 are provided at the top and bottom of the slide rail 101. Slots 103 corresponding to locking blocks 502 are provided on both sides of the limiting slide rail 102. A toothed section 104 corresponding to the driven gear 503 is provided on one side of the slide rail 101.

[0037] In use, the slide rail 101, the limiting slide rail 102 and the slot 103 facilitate the sliding locking action with the limiting block 4 and the locking block 502, and the threaded section 104 facilitates the auxiliary transmission locking action with the driven gear 503.

[0038] When this utility model is in use, when the door leaf 1 is closing, the limiting block 4 slides in the slide rail 101, and at the same time the rotating column 501 slides in the limiting slide rail 102. When the door leaf 1 is closing, the toothed section 104 in the slide rail 101 slides to the limiting block 4 and engages with the driven gear 503, which in turn drives the rotating column 501 to rotate, causing the locking block 502 to rotate into the slot 103, thus completing the automatic locking action of the door leaf 1. This can improve the stability of the door leaf 1 during the closing process, making it less susceptible to sliding or displacement due to vibration, and making it more stable and reliable in use. It can also greatly reduce the generation of noise.

[0039] When subsequent operations such as replacement are required while the door leaf 1 is closed, the rotating seat 402 can be manually rotated to drive the reset gear 401 to rotate and reset. At the same time, the pull rod 305 can be pulled to separate the limit block 4 and the limit component 5 from the door leaf 1. The overall structure is simple, low-cost, easy to disassemble and replace, and more flexible and reliable in use.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A door leaf limiting structure for a sliding door, characterized in that, It includes a door leaf (1), a guide assembly (3) and a limiting assembly (5). A mounting bracket (2) is provided on one side of the door leaf (1), and a guide assembly (3) is provided on one side of the mounting bracket (2). A limiting block (4) corresponding to the door leaf (1) is sleeved and connected inside the guide assembly (3). The limiting assembly (5) is rotatably connected inside the limiting block (4). The limiting component (5) includes a rotating column (501), and a limiting block (4) is sleeved and connected to the rotating column (501). Locking blocks (502) are equidistantly welded to the outer surface of the rotating column (501) by bolts. A driven gear (503) is bolted to the periphery of the rotating column (501) between the locking blocks (502), and the limiting block (4) is rotatably connected to the driven gear (503) through a slot.

2. The door leaf limiting structure of a sliding door according to claim 1, characterized in that, The limiting block (4) is located on one side of the driven gear (503) and is rotatably connected to the reset gear (401) via a rotating shaft. The reset gear (401) meshes with the driven gear (503). The top and bottom of the limiting block (4) are provided with rotating seats (402), and one end of the rotating seat (402) is connected to the reset gear (401) via bolts.

3. The door leaf limiting structure of a sliding door according to claim 1, characterized in that, A coil spring (504) is sleeved on the periphery of the rotating column (501) between the driven gear (503), and one end of the coil spring (504) is connected to the rotating column (501) by welding, and the other end of the coil spring (504) is connected to the limiting block (4) through a slot. The top and bottom of the limiting block (4) on the periphery of the rotating column (501) are fixedly installed with gaskets (505) through slots.

4. The door leaf limiting structure of a sliding door according to claim 1, characterized in that, The guide assembly (3) includes a guide sleeve (301), and the guide sleeve (301) is connected to the mounting bracket (2) by bolts. A sliding seat (302) is slidably connected inside the guide sleeve (301), and one end of the limiting block (4) is connected to the sliding seat (302) by bolts. The top and bottom of the sliding seat (302) are provided with protrusions (303). The inner surface of the guide sleeve (301) is provided with a limiting groove (304) corresponding to the protrusions (303). The other end of the guide sleeve (301) is sleeved with a connecting rod (305), and one end of the connecting rod (305) is connected to the sliding seat (302) by bolts. A compression spring (306) is sleeved inside the guide sleeve (301) around the outside of the connecting rod (305).

5. The door leaf limiting structure of a sliding door according to claim 1, characterized in that, The door leaf (1) has a slide rail (101) on its inner side, and the limiting block (4) is slidably connected to the slide rail (101). The top and bottom of the slide rail (101) are provided with limiting slide rails (102). The two sides of the limiting slide rail (102) are provided with slots (103) corresponding to the locking block (502). One side of the slide rail (101) is provided with a toothed section (104) corresponding to the driven gear (503).

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