Shock-resistant elevator landing door rubber sealing strip

Abstract

The utility model relates to the technical field of rubber sealing strips, in particular to an anti-impact elevator landing door rubber sealing strip which comprises a rubber sealing strip assembly, the rubber sealing strip assembly comprises a hollow rubber strip of a right triangle structure, and an inner supporting assembly used for supporting the hollow rubber strip is installed in the hollow rubber strip. The inner supporting assembly comprises a rubber inner column arranged in the hollow rubber strip in a penetrating mode, a supporting sleeve is fixed to the periphery of the rubber inner column, a retracting inner rod is arranged in the supporting sleeve in a sleeved mode, a micro spring is arranged outside the retracting inner rod in a sleeved mode, and a rubber pad is fixed to the tail end of the micro spring; a packaging assembly is arranged on the top of the rubber sealing strip assembly and comprises a packaging head, and the packaging head is matched with the hollow rubber strip in size. The inner supporting assembly is arranged in the hollow rubber strip, the hollow rubber strip can be pushed to rapidly rebound through the elastic reverse acting force of the micro spring, and the recovery effect of the hollow rubber strip is improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber seal technology, and in particular to an impact-resistant rubber seal for elevator landing doors. Background Technology

[0002] Elevator landing door rubber seals are sealing components made primarily of rubber and applied to elevator landing door systems. Through structural design and material properties, they achieve functions such as buffering, shock absorption, sound insulation, sealing, and structural reinforcement.

[0003] Currently, to better absorb impact, rubber seals are often designed with a hollow shape. For example, a soft and hard door seal for elevator landing doors, disclosed in the existing technical solution CN219448986U, includes a seal body. Two buffers are symmetrically arranged on the right side of the seal body. Both buffers have absorbable compression grooves inside. With the cooperation of the absorbable compression grooves, when the buffers are subjected to a large impact force, the linkage push block can push the edges of the buffers on both sides of the absorbable compression groove to expand. Under the action of the buffers themselves, the linkage push block can be reset.

[0004] In actual implementation, in order for the absorption and compression groove to recover after being compressed, the edge of the buffer is expanded by a linkage pusher. However, relying solely on the elasticity of the rubber itself, the recovery effect is worse than other recovery methods such as spring-assisted recovery. Summary of the Invention

[0005] The purpose of this invention is to provide an impact-resistant elevator landing door rubber seal that can quickly rebound by setting an internal support component inside the hollow rubber strip and utilizing the elastic counterforce of a micro spring, thereby improving the recovery effect of the hollow rubber strip and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant elevator landing door rubber seal, comprising a rubber seal assembly, wherein the rubber seal assembly comprises a hollow rubber strip with a right-angled triangular structure, and an inner support assembly for supporting the hollow rubber strip is installed inside the hollow rubber strip;

[0007] The inner support assembly includes a rubber inner column passing through the hollow rubber strip, a support sleeve fixed around the rubber inner column, a retractable inner rod sleeved inside the support sleeve, a micro spring sleeved outside the retractable inner rod, and a rubber pad fixed to the end of the micro spring.

[0008] Preferably, the top of the rubber sealing strip assembly is provided with a sealing component, the sealing component including a sealing head, and the sealing head is adapted to the size of the hollow rubber strip.

[0009] Preferably, a sealing head connecting block is fixed on one side of the right-angled edge of the sealing head, and the sealing head connecting block has multiple second fixing screw holes inside.

[0010] Preferably, the sealing head and the sealing head connecting block are integrally formed, and a sealing strip connecting block with the same structure as the sealing head connecting block is fixed on one side of the right-angle side of the hollow rubber strip.

[0011] Preferably, the sealing strip connecting block and the hollow rubber strip are integrally formed, and the sealing strip connecting block has multiple first fixing screw holes inside.

[0012] Preferably, the inner wall of the hollow rubber strip near the sealing strip connecting block has multiple evenly distributed mounting slots, the depth of which is less than the length of the hollow rubber strip.

[0013] Preferably, an installation block is installed inside the installation slot, and a supporting rubber plate is fixed on one side of the installation block, wherein the supporting rubber plate is adapted to the cavity size of the hollow rubber strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting an internal support component inside the hollow rubber strip, the elastic counterforce of the micro spring can be used to push the hollow rubber strip to rebound quickly, thereby improving the recovery effect of the hollow rubber strip;

[0016] 2. The entire rubber seal is formed by combining the set rubber sealing strip assembly and the encapsulation assembly. The inner support assembly can be installed inside the rubber sealing strip assembly to provide elastic support for the hollow rubber strip and further improve the impact resistance of the hollow rubber strip. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of the rubber sealing strip assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection between the rubber sealing strip assembly and the encapsulation assembly of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the packaging head of this utility model from another perspective;

[0022] Figure 5 This is a partial structural diagram of the rubber inner column of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Rubber sealing strip assembly; 101. Hollow rubber strip; 102. Supporting rubber plate; 103. Mounting block; 104. Mounting slot; 105. First fixing screw hole; 106. Sealing strip connecting block; 2. Encapsulation assembly; 201. Encapsulation head; 202. Encapsulation head connecting block; 203. Second fixing screw hole; 3. Inner support assembly; 301. Rubber inner column; 302. Support sleeve; 303. Retractable inner rod; 304. Miniature spring; 305. Rubber pad. 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] This utility model provides a technical solution:

[0027] Please see Figures 1 to 5 An impact-resistant elevator landing door rubber seal includes a rubber seal assembly 1, which includes a hollow rubber strip 101 with a right-angled triangular structure, and an inner support assembly 3 for supporting the hollow rubber strip 101 is installed inside the hollow rubber strip 101.

[0028] The inner support assembly 3 includes a rubber inner column 301 that passes through the hollow rubber strip 101. A support sleeve 302 is fixed around the rubber inner column 301. A retractable inner rod 303 is sleeved inside the support sleeve 302. A miniature spring 304 is sleeved outside the retractable inner rod 303. A rubber pad 305 is fixed to the end of the miniature spring 304.

[0029] The top of the rubber sealing strip assembly 1 is provided with a sealing assembly 2. The sealing assembly 2 includes a sealing head 201, and the sealing head 201 is adapted to the size of the hollow rubber strip 101. A sealing head connecting block 202 is fixed on one side of the right angle of the sealing head 201, and multiple second fixing screw holes 203 are opened inside the sealing head connecting block 202. Both the rubber sealing strip assembly 1 and the sealing assembly 2 are made of EPDM rubber. The rubber sealing strip assembly 1 and the sealing assembly 2 can be used together. After the inner support assembly 3 is made, it is fixed to the bottom of the sealing assembly 2 with adhesive. The bottom of the sealing head 201 is a hollow structure, covering the top of the rubber inner column 301. The length of the micro spring 304 is set according to the distance between the rubber inner column 301 and the hollow rubber strip 101.

[0030] By adopting the above technical solution, in use, the rubber sealing strip assembly 1 is installed on the elevator door, and the hollow rubber strips 101 on the left and right elevator doors are staggered so that the hollow rubber strips 101 close together. Since the hollow rubber strips 101 have a right-angled triangular structure, when the two sets of hollow rubber strips 101 collide with each other, they can be squeezed inward, causing the hollow rubber strips 101 to undergo elastic deformation. Since the rubber pad 305 is in close contact with the inner wall of the hollow rubber strip 101, the hollow rubber strip 101 can drive the rubber pad 305 to move closer to the inner wall. The inner column 301 moves in a certain direction, thereby driving the retractable inner rod 303 to retract to the support sleeve 302 via the rubber pad 305. At this time, the micro spring 304 is compressed inward, and the elastic reverse force of the micro spring 304 can push the hollow rubber strip 101 to rebound quickly, thereby pushing the hollow rubber strips 101 to stick together. By setting the inner support component 3 inside the hollow rubber strip 101, the elastic reverse force of the micro spring 304 can push the hollow rubber strip 101 to rebound quickly, thereby improving the recovery effect of the hollow rubber strip 101.

[0031] Specifically, such as Figure 2 and Figure 3 As shown, the sealing head 201 and the sealing head connecting block 202 are integrally formed, and a sealing strip connecting block 106 with the same structure as the sealing head connecting block 202 is fixed on one side of the right angle edge of the hollow rubber strip 101.

[0032] The sealing strip connecting block 106 and the hollow rubber strip 101 are integrally formed, and the sealing strip connecting block 106 has multiple first fixing screw holes 105 inside.

[0033] The hollow rubber strip 101 has multiple evenly distributed mounting slots 104 on the inner wall of the side near the sealing strip connecting block 106. The depth of the mounting slots 104 is less than the length of the hollow rubber strip 101.

[0034] The mounting slot 104 has a mounting block 103 installed inside, and a supporting rubber plate 102 is fixed on one side of the mounting block 103. The supporting rubber plate 102 is adapted to the cavity size of the hollow rubber strip 101.

[0035] By adopting the above technical solution, after the hollow rubber strip 101 is manufactured, a groove 104 is formed on the inner side of the hollow rubber strip 101 by a cutting tool. The number of mounting grooves 104 can be adjusted according to the actual processing, with a minimum of one groove set to limit the support rubber plate 102. The support rubber plate 102 is engaged with the inside of the hollow rubber strip 101 by the mounting block 103, which effectively supports the bottom of the hollow rubber strip 101. The hollow rubber strip 101 and the encapsulation head 201 are respectively installed on the side of the elevator door by screws, with the screws passing through the first fixing screw hole 105 and the second fixing screw hole 105 respectively. The screw hole 203, the end cap connecting block 202, and the sealing strip connecting block 106 fit together with the side of the elevator to achieve installation. When assembling the rubber inner column 301, the rubber inner column 301 is inserted into the hollow rubber strip 101, which can push the support rubber plate 102 to move downward until the support rubber plate 102 moves to the lowest position. Through the set rubber sealing strip assembly 1 and encapsulation assembly 2, the entire rubber sealing strip is formed. The inner support assembly 3 can be installed inside the rubber sealing strip assembly 1 to provide elastic support for the hollow rubber strip 101 and further improve the impact resistance of the hollow rubber strip 101.

[0036] Working principle: During the assembly of the rubber inner column 301, the rubber inner column 301 is inserted into the hollow rubber strip 101, which can push the supporting rubber plate 102 downward until the supporting rubber plate 102 moves to the lowest position. The supporting rubber plate 102 is engaged with the hollow rubber strip 101 by the mounting block 103, which effectively supports the bottom of the hollow rubber strip 101. The hollow rubber strip 101 and the sealing head 201 are respectively installed on the side of the elevator door by screws. The screws pass through the first fixing screw hole 105 and the second fixing screw hole 203 respectively. The sealing head connecting block 202 and the sealing strip connecting block 106 fit together with the side of the elevator to achieve installation. The rubber sealing strip assembly 1 is installed on the elevator door, and the hollow rubber strip on the left and right elevator doors... The rubber strips 101 are staggered, causing the hollow rubber strips 101 to close together. Since the hollow rubber strips 101 have a right-angled triangular structure, when two sets of hollow rubber strips 101 collide, they can be squeezed inward, causing the hollow rubber strips 101 to undergo elastic deformation. Since the rubber pad 305 is in close contact with the inner wall of the hollow rubber strip 101, the hollow rubber strip 101 can drive the rubber pad 305 to move closer to the inner rubber column 301. This causes the inner retracting rod 303 to retract to the support sleeve 302 via the rubber pad 305. At this time, the micro spring 304 is compressed inward, and the elastic reverse force of the micro spring 304 can push the hollow rubber strips 101 to rebound quickly, thereby pushing the hollow rubber strips 101 to close together.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An impact-resistant elevator landing door rubber seal comprising a rubber seal assembly (1), characterized by: The rubber sealing strip assembly (1) includes a hollow rubber strip (101) with a right-angled triangular structure, and an inner support assembly (3) for supporting the hollow rubber strip (101) is installed inside the hollow rubber strip (101). The inner support assembly (3) includes a rubber inner column (301) inserted inside the hollow rubber strip (101), a support sleeve (302) fixed around the rubber inner column (301), and a retractable inner rod (303) sleeved inside the support sleeve (302). A miniature spring (304) is sleeved outside the retractable inner rod (303), and a rubber pad (305) is fixed at the end of the miniature spring (304).

2. An impact-resistant elevator landing door rubber seal according to claim 1, characterized in that: The top of the rubber sealing strip assembly (1) is provided with a sealing assembly (2), the sealing assembly (2) includes a sealing head (201), and the sealing head (201) is adapted to the size of the hollow rubber strip (101).

3. An impact-resistant elevator landing door rubber seal according to claim 2, characterized in that: The sealing head (201) has a sealing head connecting block (202) fixed on one side of the right angle, and the sealing head connecting block (202) has multiple second fixing screw holes (203) inside.

4. An impact-resistant elevator landing door rubber seal according to claim 3, characterized in that: The sealing head (201) and the sealing head connecting block (202) are integrally formed, and a sealing strip connecting block (106) with the same structure as the sealing head connecting block (202) is fixed on one side of the right angle side of the hollow rubber strip (101).

5. An impact-resistant elevator landing door rubber seal according to claim 4, characterized in that: The sealing strip connecting block (106) and the hollow rubber strip (101) are integrally formed, and the sealing strip connecting block (106) has multiple first fixing screw holes (105) inside.

6. An impact-resistant elevator landing door rubber seal according to claim 5, characterized in that: The hollow rubber strip (101) has multiple equally spaced and evenly distributed mounting slots (104) on the inner wall of the side near the sealing strip connecting block (106). The depth of the mounting slots (104) is less than the length of the hollow rubber strip (101).

7. An impact-resistant elevator landing door rubber seal according to claim 6, characterized in that: The mounting slot (104) is equipped with a mounting block (103), and a supporting rubber plate (102) is fixed on one side of the mounting block (103). The supporting rubber plate (102) is adapted to the cavity size of the hollow rubber strip (101).

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