A sealing structure of a sliding door

Abstract

This utility model belongs to the field of sealing structure technology, and in particular to a sealing structure for a sliding door. It includes a mating base with a U-shaped cross-section. A supporting base is fixedly mounted on the lower end face of the mating base, providing support and fixation. Two sealing blocks are disposed inside the mating base to seal the sliding door inserted within it. The two sealing blocks are located on opposite sides of the inner side of the mating base, their positions corresponding to each other. This utility model, through the arrangement of sealing blocks, a socket, a helical spring, and an airbag, can seal the sliding door in the closed state. This effectively blocks cold air escaping from the cold storage to the outside air, providing a quadruple insulation effect. This prevents cold air leakage from the cold storage, thereby improving the cold storage's insulation efficiency.

Description

Technical Field

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

[0002] Sliding doors, also known as industrial sliding doors, electric sliding doors, and automatic sliding doors, use high-quality sandwich panels as the door body. The lifting and positioning of the door are controlled by a PLC, frequency converter, and encoder. Fixed tracks are installed on both sides of the door. When the motor pulls the door up, it rises along the tracks to the ceiling, making efficient use of space. For example, sliding doors are often used in cold storage. Because cold storage requires continuous refrigeration or insulation, it's crucial to minimize cold air leakage. Therefore, a sealing structure is essential for sliding doors. This typically involves a block at the end of the sliding door that contacts the ground. By inserting one end of the sliding door into the block, the door's seal is improved. Alternatively, some sealing structures use a rubber gasket fixed to one end of the sliding door.

[0003] Although the installation of inserts and rubber pads can reduce the sealing between the sliding door and the ground, a single seal is relatively poor in terms of cold preservation. There is still a possibility that cold air inside the cold storage will leak into the air through the sealing structure between the sliding door and the ground, resulting in poor cold preservation inside the cold storage.

[0004] Therefore, we propose a sealing structure for sliding doors to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a sealing structure for a sliding door, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A sealing structure for a sliding door includes a mating base, the mating base having a U-shaped cross-section, and a support base fixedly disposed on the lower end face of the mating base, the support base providing support and fixation for the mating base;

[0010] A sealing block is provided inside the mating base to seal the sliding door inserted into the mating base. There are two sealing blocks, which are located on both sides of the inner side of the mating base and are positioned corresponding to each other. The two inner walls of the mating base have slots, and one end of each sealing block is inserted into the two slots respectively.

[0011] A helical spring is installed inside the socket to press the sealing block against the sliding door inside the mating base. Multiple helical springs are provided, and the two ends of the helical springs are fixedly connected to the inner wall of the socket and the sealing block inserted into the socket, respectively. An airbag is fixedly installed at the bottom of the inner side of the mating base.

[0012] Furthermore, the mating base is provided with two sets of limiting grooves, each set of limiting grooves has two grooves, the two limiting grooves are symmetrical about the sealing block, and the sealing block is fixedly provided with a limiting block.

[0013] Furthermore, there are two limiting blocks, and the limiting blocks on the two sealing blocks correspond to the positions of the two sets of limiting grooves, and the limiting blocks on the two sealing blocks are slidably disposed in the two sets of limiting grooves.

[0014] Furthermore, a set of positioning holes is provided on both sides of the upper end face of the support base, and there are multiple positioning holes in each set.

[0015] Furthermore, a set of reinforcing plates is fixedly provided on both sides of the upper end face of the support base. Each set of reinforcing plates consists of multiple plates, and each reinforcing plate is located between two adjacent positioning holes.

[0016] Furthermore, the width of the airbag is smaller than the width of the inner cavity of the mating base, the length of the airbag is adapted to the length of the mating base, and the size of the limiting block is adapted to the size of the limiting groove.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a sealing structure for a sliding door, which has the following beneficial effects:

[0019] This invention, through the setting of sealing block, socket, spiral spring and airbag, can seal the sliding door when it is closed. This can block the cold air escaping from the cold storage to the outside air and achieve a quadruple effect of cold insulation. This can prevent the cold air from leaking out of the cold storage and thus improve the cold preservation effect of the cold storage. Attached Figure Description

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

[0021] Figure 2 This is a perspective view of the connection between the base and the sealing block of this utility model;

[0022] Figure 3 This is an exploded view of the base and sealing block of this utility model;

[0023] Figure 4 This is a perspective view of the connection between the support base and the reinforcing plate of this utility model.

[0024] In the diagram: 1. Matching base; 2. Supporting base; 3. Sealing block; 4. Insert; 5. Helical spring; 6. Limiting groove; 7. Limiting block; 8. Airbag; 9. Positioning hole; 10. Reinforcing plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figure 1-4 As shown, an embodiment of the present invention provides a sealing structure for a sliding door, including a mating base 1. The mating base 1 has a U-shaped cross-section, and a support base 2 is fixedly provided on the lower end face of the mating base 1. The support base 2 provides support and fixation for the mating base 1.

[0028] A sealing block 3 is provided inside the mating base 1 to seal the sliding door inserted into the mating base 1. There are two sealing blocks 3, which are located on both sides of the inner side of the mating base 1 and are positioned in opposite directions. The two inner walls of the mating base 1 have slots 4, and one end of each sealing block 3 is inserted into the two slots 4 respectively.

[0029] A helical spring 5 is installed inside the socket 4 to press the sealing block 3 against the sliding door inside the mating base 1. Multiple helical springs 5 ​​are provided. The two ends of the helical spring 5 are fixedly connected to the inner wall of the socket 4 and the sealing block 3 inserted in the socket 4, respectively. An airbag 8 is fixedly installed at the bottom of the inner side of the mating base 1.

[0030] The sealing block 3, the socket 4, the spiral spring 5, and the airbag 8 can seal the sliding door when it is closed. This can block the cold air from escaping from the cold storage to the outside air and achieve a quadruple effect of cold insulation. This can prevent the cold air from leaking out of the cold storage and thus improve the cold storage effect.

[0031] The base 1 has two sets of limiting grooves 6, with two grooves in each set. The two limiting grooves 6 are symmetrical about the sealing block 3. The sealing block 3 is fixedly provided with limiting blocks 7. There are two limiting blocks 7, and the limiting blocks 7 on the two sealing blocks 3 correspond to the positions of the two sets of limiting grooves 6, and the limiting blocks 7 on the two sealing blocks 3 are slidably disposed in the two sets of limiting grooves 6.

[0032] The limiting groove 6 and the limiting block 7 play a limiting and guiding role in the movement of the sealing block 3, which makes the sealing block 3 more stable as it moves along the inner wall of the socket 4 towards the bottom of the inner side of the socket 4.

[0033] The upper surface of the support base 2 has a set of positioning holes 9 on both sides, and each set of positioning holes 9 has multiple holes. A set of reinforcing plates 10 are fixedly installed on both sides of the upper surface of the support base 2, and each set of reinforcing plates 10 has multiple plates, with each reinforcing plate 10 located between two adjacent positioning holes 9. The positioning holes 9 are used to fix the support base 2 in a designated position, and the reinforcing plates 10 are used to improve the stability and strength of the installation between the mating base 1 and the support base 2.

[0034] The width of the airbag 8 is smaller than the width of the inner cavity of the base 1, the length of the airbag 8 is adapted to the length of the base 1, and the size of the limiting block 7 is adapted to the size of the limiting groove 6.

[0035] The working principle of this practical application is as follows:

[0036] First, the mating base 1 is fixed in the designated position by the supporting base 2, and both ends of the mating base 1 and the two ends of the airbag 8 are respectively pressed against the two walls on which the sliding door is installed. During the closing process of the sliding door, when the bottom end of the sliding door is at the same level as the top end of the mating base 1, the sliding door continues to move downward, and one end of the sliding door enters the inside of the mating base 1. When one end of the sliding door presses against the sealing block 3 inside the mating base 1, the sealing block 3 is forced to move towards the bottom end of the inlet 4. The movement of the sealing block 3 compresses the helical spring 5 inside the inlet 4. 5. Under pressure and contraction, when one end of the sliding door passes through the two sealing blocks 3 and rests on the airbag 8, the airbag 8 is subjected to force, causing the middle of its upper surface to be concave. The concavity of the airbag 8 causes the air inside the airbag 8 to move to both sides inside the airbag 8. The transfer of air inside the airbag 8 causes the two sides of the airbag 8 to deform. When the two sides of the airbag 8 rest on the two inner walls of the mating base 1, the deformed sides of the airbag 8 will continue to rise along the inner wall of the mating base 1. When the sliding door moves down to the end of its travel, the airbag 8 will cover the sliding door inserted in the mating base 1. At this time, the sliding door can be locked.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing structure for a sliding door, comprising a mating base (1), wherein the mating base (1) has a U-shaped cross-section, characterized in that: A support base (2) is fixedly provided on the lower end face of the mating base (1), and the support base (2) provides support and fixation for the mating base (1). A sealing block (3) is provided inside the mating base (1) to seal the sliding door inserted in the mating base (1). There are two sealing blocks (3), which are located on both sides inside the mating base (1) and are positioned in opposite directions. The two walls inside the mating base (1) have slots (4) and one end of each sealing block (3) is inserted into the two slots (4). A helical spring (5) is set inside the socket (4) to press the sealing block (3) against the sliding door inside the mating base (1). Multiple helical springs (5) are provided. The two ends of the helical springs (5) are fixedly connected to the inner wall of the socket (4) and the sealing block (3) inserted in the socket (4), respectively. An airbag (8) is fixedly provided at the bottom of the inner side of the mating base (1).

2. The sealing structure of a sliding door according to claim 1, characterized in that: The base (1) is provided with two sets of limiting grooves (6), each set of limiting grooves (6) has two, the two limiting grooves (6) are symmetrical about the sealing block (3), and the sealing block (3) is fixedly provided with a limiting block (7).

3. The sealing structure of a sliding door according to claim 2, characterized in that: There are two limiting blocks (7). The limiting blocks (7) on the two sealing blocks (3) correspond to the positions of the two sets of limiting grooves (6) respectively, and the limiting blocks (7) on the two sealing blocks (3) are slidably disposed in the two sets of limiting grooves (6).

4. The sealing structure of a sliding door according to claim 1, characterized in that: The upper surface of the support base (2) is provided with a set of positioning holes (9) on both sides, and each set of positioning holes (9) consists of multiple holes.

5. The sealing structure of a sliding door according to claim 4, characterized in that: A set of reinforcing plates (10) are fixedly provided on both sides of the upper end face of the support base (2). Each set of reinforcing plates (10) consists of multiple plates, and each reinforcing plate (10) is located between two adjacent positioning holes (9).

6. The sealing structure of a sliding door according to claim 3, characterized in that: The width of the airbag (8) is less than the width of the inner cavity of the base (1), the length of the airbag (8) is adapted to the length of the base (1), and the size of the limiting block (7) is adapted to the limiting groove (6).

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