A sliding door wheel frame matching structure

Abstract

The application provides a sliding door wheel frame matching structure, relates to the technical field of sliding door wheel frame structure, and comprises a door frame and a sliding door body. The inner walls of the two sides of the door frame are both provided with receiving cavities. The top and bottom inner walls of the two receiving cavities are both provided with door guide assemblies. The four door guide assemblies each comprise a support. The inner side of the support is rollingly connected with a roller. Four corners of the surface of the support away from the roller are integrally formed with guide rods. The outer part of the guide rods is connected with springs in a sleeved mode. The outer part of the four guide rods away from the support is jointly sleeved with a seat plate. The technical key points are as follows: when the sliding door body moves to the inner side of the door frame, the roller is first pressed, and in the rolling process of the roller on the inner side of the support, the two rollers drive the two supports to move away from each other to compress the spring, until the roller rolls on the surface of the sliding door body, so that the activity gap between the roller and the surface of the sliding door body can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of sliding door wheel frame structure, specifically a sliding door wheel frame mating structure. Background Technology

[0002] Sliding doors are doors that open and close by pushing and pulling. The main type is the electric sliding door, which also has the function of switching between manual and electric modes. It is suitable for industrial plants and other scenarios with high durability requirements. Its track has two structures: bottom-loaded and top-loaded. The former is easier to maintain, while the latter has better operational stability.

[0003] Door frame materials mainly include aluminum alloy, stainless steel, and galvanized steel sheet: aluminum alloy combines lightweight and sealing properties, stainless steel is sturdy and durable but more expensive, and galvanized steel sheet is inexpensive but less corrosion resistant. Door panels often use polystyrene foam color steel composite panels to balance lightweight and strength requirements.

[0004] In the process of opening and closing, existing sliding doors are positioned by guide wheels in the door frame, which improves their impact resistance and movement stability under large span conditions. However, since the guide wheels are fixed to the inside of the door frame and cannot be moved, during the reciprocating movement of the sliding door, the surface of the guide wheels is prone to wear and a large gap is generated between the guide wheels and the sliding door, which eventually causes the sliding door to sway inside the door frame. Utility Model Content

[0005] To overcome the shortcomings of existing sliding doors where the guide wheels are fixed to the inside of the door frame and cannot move, leading to wear on the guide wheel surface and a large gap between the guide wheel and the sliding door during reciprocating motion, resulting in insufficient door movement inside the door frame, this application provides a sliding door wheel-frame mating structure. By applying pressure to the rollers when the sliding door body moves to the inside of the door frame, and as the rollers roll inside the brackets, the two rollers drive the two brackets away from each other, compressing the springs until the rollers roll on the surface of the sliding door body, thus avoiding gaps between the rollers and the surface of the sliding door body.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is: A sliding door frame and wheel assembly structure includes a door frame and a sliding door body, wherein the sliding door body is movably connected to the inner side of the door frame; Storage cavities are provided on the inner walls of both sides of the door frame, and door guide components are provided on the top and bottom inner walls of the two storage cavities. Each of the four door guide assemblies includes a bracket, with rollers rolled on the inner side of the bracket, and guide rods integrally formed at the four corners of the bracket away from the surface of the rollers. Springs are sleeved on the outside of the guide rods, and a seat plate is sleeved on the outside of the four guide rods at the end away from the bracket. One end of the guide rod is threaded with a nut after passing through the inside of the seat plate, so that the spring is supported between the seat plate and the bracket. When the sliding door body passes through the inside of the door frame, it applies pressure to the rollers. After the spring is compressed, the distance between the two rollers is automatically adjusted.

[0007] In one possible implementation, horizontal plates are welded to the top and bottom inner walls of both storage cavities, and a support rod is integrally formed on the top of the horizontal plate; the seat plate is V-shaped and is sleeved on the outside of the support rod, with one side surface of the seat plate away from the four guide rods fitting against the inner wall of the storage cavity.

[0008] In one possible implementation, the interior angle of the seat plate is thirty degrees, and all four guide rods are perpendicular to the surface of the seat plate away from the inner wall of the receiving cavity.

[0009] In one possible implementation, a limiting plate is adapted to be connected at the outer corner of the seat plate, one side of the limiting plate is inserted into the door frame through a storage cavity, and the surface of the support rod is adapted to be connected to the inner corner of the seat plate.

[0010] In one possible implementation, when the roller is subjected to pressure applied by the sliding door body, the pressure is transmitted to the seat plate through the bracket and spring, causing the seat plate to deform under the support of the support rod and the inner wall of the storage cavity.

[0011] In one possible implementation, the surface of the limiting plate away from the seat plate is integrally formed with a backing rib, and the surface of the backing rib fits against the inner wall of the receiving cavity.

[0012] In one possible implementation, a limiting rib is integrally formed on the outer surface of the seat plate near the bracket, and one side of the limiting rib fits against the edge of the limiting plate to prevent the limiting plate from detaching from the inside of the door frame.

[0013] The beneficial effects of this application are as follows: First, in this solution, when the main body of the sliding door moves to the inside of the door frame, pressure is applied to the rollers. As the rollers roll inside the brackets, the two rollers drive the two brackets away from each other, compressing the springs until the rollers roll on the surface of the main body of the sliding door. This helps to avoid gaps between the rollers and the surface of the main body of the sliding door, which would prevent the main body of the sliding door from being supported and guided by the rollers when moving inside the door frame. Secondly, in this solution, by using the limiting plate and support rod to position the V-shaped seat plate, the distance between the left and right rollers is small, making it difficult for the sliding door body to apply pressure to the rollers. As the rollers roll, the seat plate is first deformed by applying pressure, and then the two rollers roll, causing the bracket to apply pressure to the spring, reducing the distance between the bracket and the seat plate, and continuing to complete the work of moving the left and right rollers away from each other. This is beneficial to expanding the support range of the left and right rollers moving away from each other. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a plan view of the present invention in use; Figure 3 This is a schematic diagram of the door guide assembly of this utility model.

[0015] Reference numerals in the attached drawings: 1. Sliding door body; 2. Door frame; 3. Storage cavity; 4. Door guide assembly; 401. Roller; 402. Limiting plate; 403. Supporting upright; 404. Horizontal plate; 405. Seat plate; 406. Spring; 407. Guide rod; 408. Bracket; 409. Supporting rib; 410. Limiting rib. Detailed Implementation

[0016] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example 1: This embodiment describes the specific structure of a sliding door wheel frame mating structure, see details below. Figures 1-3 As shown, the door frame 2 and the sliding door body 1 are movably connected to the inner side of the door frame 2. The inner walls on both sides of the door frame 2 are provided with storage cavities 3. The top and bottom inner walls of the two storage cavities 3 are provided with door guide components 4. Each of the four door guide components 4 includes a bracket 408. The inner side of the bracket 408 is connected to a roller 401 in a rolling manner. The four corners of the bracket 408 away from the surface of the roller 401 are integrally formed with guide rods 407. The outer side of the guide rods 407 is connected to a spring 406. The outer side of the four guide rods 407 away from the bracket 408 is connected to a seat plate 405. By passing one end of the guide rod 407 through the interior of the seat plate 405 and threading a nut thereon, the spring 406 can be supported between the seat plate 405 and the bracket 408. When the sliding door body 1 passes through the inside of the door frame 2, it applies pressure to the roller 401, which can transmit the pressure to the bracket 408. After the spring 406 is compressed, the distance between the two rollers 401 is automatically adjusted, which can ignore the wear caused by the friction between the roller 401 and the surface of the sliding door body 1, and the resulting gap. Secondly, to further ensure that the two rollers 401 can move away from each other, in most cases, the supporting sliding door body 1 passes through the inside of the door frame 2 and is guided by the two rollers 401, such as... Figure 2 and Figure 3 As shown, the top and bottom inner walls of the two storage cavities 3 are welded with horizontal plates 404. The top of the horizontal plates 404 is integrally formed with a support rod 403. By setting the seat plate 405 in a V-shape, when the seat plate 405 is sleeved on the outside of the support rod 403, and the side surface of the seat plate 405 away from the one connected to the four guide rods 407 is in contact with the inner wall of the storage cavity 3, when the roller 401 is subjected to the pressure applied by the sliding door body 1, the pressure can be transmitted to the seat plate 405 through the bracket 408 and the spring 406, so that the seat plate 405 is slightly deformed under the support of the support rod 403 and the inner wall of the storage cavity 3, so as to accommodate the sliding door body 1 passing between the two rollers 401, so that the roller 401 rolls on the surface of the sliding door body 1. Meanwhile, by setting the inner angle of the seat plate 405 to 30 degrees, and all four guide rods 407 being perpendicular to the surface of the seat plate 405 away from the inner wall of the storage cavity 3, when the sliding door body 1 moves to the inner side of the door frame 2 and applies pressure to the two rollers 401, the support 408 and spring 406 can apply pressure to the seat plate 405. On the one hand, this reduces the distance between the support 408 and the seat plate 405, and on the other hand, it makes the seat plate 405 tend to be folded around the support rod 403, making it easier for the sliding door body 1 to fall between the rollers 401 on the two storage cavities 3. In some examples, to cooperate with the support rod 403 in fixing the seat plate 405 to the inner wall of the storage cavity 3, such as... Figure 2 and Figure 3 As shown, a limiting plate 402 is adapted to be connected at the outer corner of the seat plate 405. By inserting one side of the limiting plate 402 into the inside of the door frame 2 through the storage cavity 3, the surface of the support rod 403 is adapted to be connected to the inner corner of the seat plate 405. The limiting plate 402 and the support rod 403 can be used to restrict the movement of the seat plate 405 in the horizontal plane.

[0017] The above design utilizes a bracket 408 to support rollers 401, allowing guide rods 407 to be slidably connected to the inside of the seat plate 405. With the help of four springs 406 set between the seat plate 405 and the bracket 408, when the sliding door body 1 moves to the inside of the door frame 2, pressure is first applied to the rollers 401. As the rollers 401 roll inside the bracket 408, the two rollers 401 drive the two brackets 408 away from each other, compressing the springs 406 until the rollers 401 roll on the surface of the sliding door body 1. This helps to avoid gaps between the rollers 401 and the surface of the sliding door body 1, which would prevent the sliding door body 1 from being supported and guided by the rollers 401 when moving inside the door frame 2. Meanwhile, when the sliding door body 1 moves to the inside of the door frame 2 and applies pressure to the roller 401, the roller 401, bracket 408 and guide rod 407 can be used to apply pressure to the seat plate 405, so that the V-shaped seat plate 405 tends to bend around the support rod 403. This is to adapt to the situation where the distance between the two rollers 401 is small and it is not easy to apply pressure to the rollers 401 on the sliding door body 1 while the rollers 401 are rolling. First, the seat plate 405 is deformed by applying pressure, and then the two rollers 401 roll, so that the bracket 408 applies pressure to the spring 406, reducing the distance between the bracket 408 and the seat plate 405, and continuing to complete the work of moving the two rollers 401 away from each other.

[0018] Example 2: Based on Embodiment 1, this embodiment describes the specific structure of the door guide assembly 4, such as... Figure 2 and Figure 3 As shown, the surface of the limiting plate 402 away from the seat plate 405 is integrally formed with a support rib 409, and the outer surface of the seat plate 405 near the bracket 408 is integrally formed with a limiting rib 410. In this way, by making the surface of the rib 409 fit against the inner wall of the storage cavity 3, support can be provided for the side surface of the limiting plate 402 away from the seat plate 405, so as to prevent the limiting plate 402 from deforming during long-term use. Secondly, by making one side of the limiting rib 410 fit against the edge of the limiting plate 402, during the movement of the seat plate 405 outside the support rod 403, the limiting plate 402 can be restricted from detaching from the door frame 2 after the initial position and after bending and resetting, thus ensuring the connection effect between the limiting plate 402 and the door frame 2.

[0019] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A sliding door wheel frame mating structure, characterized in that, include: Door frame (2); The main body of the sliding door (1) is movably connected to the inside of the door frame (2); Storage cavities (3) are provided on the inner walls of both sides of the door frame (2), and door guide components (4) are provided on the top and bottom inner walls of the two storage cavities (3). Each of the four door guide assemblies (4) includes a bracket (408), with a roller (401) rollingly connected to the inner side of the bracket (408). Guide rods (407) are integrally formed at the four corners of the bracket (408) away from the surface of the roller (401). Springs (406) are sleeved on the outside of the guide rods (407). A seat plate (405) is sleeved on the outside of the four guide rods (407) at the end away from the bracket (408). One end of the guide rod (407) is threaded with a nut after passing through the inside of the seat plate (405), so that the spring (406) is supported between the seat plate (405) and the bracket (408). When the sliding door body (1) passes through the inside of the door frame (2), it applies pressure to the roller (401). After the spring (406) is compressed, the distance between the two rollers (401) is automatically adjusted.

2. The sliding door wheel frame mating structure as described in claim 1, characterized in that: The top and bottom inner walls of the two storage cavities (3) are welded with horizontal plates (404), and the top of the horizontal plates (404) is integrally formed with a support rod (403). The seat plate (405) is V-shaped and is sleeved on the outside of the support rod (403). The side surface of the seat plate (405) away from the four guide rods (407) is in contact with the inner wall of the storage cavity (3).

3. The sliding door wheel frame mating structure as described in claim 1, characterized in that: The inner angle of the seat plate (405) is 30 degrees, and the four guide rods (407) are all perpendicular to the surface of the seat plate (405) away from the inner wall of the storage cavity (3).

4. The sliding door wheel frame mating structure as described in claim 2, characterized in that: A limiting plate (402) is adapted to be connected at the outer corner of the seat plate (405). One side of the limiting plate (402) is inserted into the door frame (2) through the storage cavity (3). The surface of the support rod (403) is adapted to be connected to the inner corner of the seat plate (405).

5. The sliding door wheel frame mating structure as described in claim 4, characterized in that: When the roller (401) is subjected to pressure by the sliding door body (1), the pressure is transmitted to the seat plate (405) through the bracket (408) and spring (406), causing the seat plate (405) to deform under the support of the support rod (403) and the inner wall of the storage cavity (3).

6. The sliding door wheel frame mating structure as described in claim 4, characterized in that: The limiting plate (402) has an integrally formed a support rib (409) on the side away from the seat plate (405), and the surface of the support rib (409) is in contact with the inner wall of the storage cavity (3).

7. The sliding door wheel frame mating structure as described in claim 4, characterized in that: A limiting rib (410) is integrally formed on the outer surface of the seat plate (405) near the bracket (408). One side of the limiting rib (410) is attached to the edge of the limiting plate (402) to restrict the limiting plate (402) from detaching from the door frame (2).

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