Shock-resistant elevator car wall sound insulation rubber pad

Abstract

The utility model relates to the technical field of elevator car accessories, and particularly discloses an anti-impact elevator car wall sound insulation rubber pad which comprises a first rubber pad, a second rubber pad is connected to the lower portion of the first rubber pad, and inserting holes are formed in the four corners of the first rubber pad. And a built-in gasket with the inner diameter smaller than that of the inserting hole is fixedly arranged in the inserting hole, a length-adjustable fixing rod assembly penetrates through the interior of the built-in gasket, fixing holes are formed in the four corners of the second rubber pad, and damping springs are installed in the fixing holes. The fixing rod assembly is sleeved with the damping spring, a fixing gasket is arranged below the fixing hole and embedded into the fixing hole, and a fixing screw is installed below the fixing gasket and penetrates through the fixing gasket to be in threaded connection with the fixing rod assembly. The rubber pad parts can be replaced according to needs, and a plurality of groups of rubber pads can be stacked for use according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car accessories, in particular to a sound insulation rubber pad for elevator car walls with impact resistance. Background Technique

[0002] The sound insulation rubber pad for elevator car walls is a sound insulation material specially designed for the interior of elevator cars. It is mainly made of elastic materials such as rubber and has excellent sound insulation, shock absorption and buffering properties. This gasket can effectively reduce the noise during elevator operation, improve the riding experience of passengers, and protect the structure and equipment inside the elevator car from vibration and impact.

[0003] In the existing publicly disclosed technical solution, the publication number CN115140631B discloses a sound insulation and shock absorption rubber pad for elevator car walls that prevents cracking, including a rubber frame. A plurality of small holes are formed in the side wall of the rubber frame, and connecting shells are respectively fixedly connected to the upper and lower sides of the rubber frame. When the rubber pad is squeezed, the connecting shells on the upper and lower sides are squeezed against each other, so that the telescopic rod moves inside the telescopic tube, thereby achieving the purpose of shock absorption and buffering. After the rubber frame is deformed, the gas inside it is discharged through the small holes. Using this effect, it can be equivalent to a piston mechanism, so that the gas can continuously inhale and exhale. During the process of inhaling and exhaling, the propagation path of noise can be changed, thereby achieving the purpose of noise reduction.

[0004] When the above technical solution is actually implemented, it is not convenient to disassemble the rubber frame from other components. Therefore, it is not convenient to select different numbers of rubber pads to be stacked according to needs when using the rubber pad. Summary of the Invention

[0005] The purpose of the utility model is to provide a sound insulation rubber pad for elevator car walls with impact resistance, which can replace rubber pad components according to needs and can stack multiple groups of rubber pads according to needs to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sound insulation rubber pad for elevator car walls with impact resistance, including a first rubber pad. A second rubber pad is connected below the first rubber pad. Insertion holes are formed at the four corners of the first rubber pad, and an inner gasket with an inner diameter smaller than the inner diameter of the insertion hole is fixedly arranged inside the insertion hole. A fixed rod assembly with adjustable length penetrates through the inner gasket. Fixing holes are formed at the four corners of the second rubber pad, and shock absorption springs are installed inside the fixing holes;

[0007] The shock absorption spring is sleeved outside the fixed rod assembly. A fixed gasket is arranged below the fixing hole, and the fixed gasket is embedded inside the fixing hole. A fixing screw is installed below the fixed gasket, and the fixing screw penetrates through the fixed gasket and is threadedly connected to the fixed rod assembly.

[0008] Preferably, a plurality of mounting grooves are evenly distributed at equal intervals inside both the first rubber pad and the second rubber pad.

[0009] Preferably, a polyurethane sound insulation pad is arranged inside the mounting groove, and the thickness of the polyurethane sound insulation pad is less than the depth of the mounting groove.

[0010] Preferably, the fixed rod assembly includes a positioning plate, a sleeve is fixedly arranged at the bottom of the positioning plate, and a solid rod is movably connected inside the sleeve.

[0011] Preferably, a telescopic groove is formed at the connection between the sleeve and the solid rod, and a connecting spring is arranged inside the telescopic groove. Both ends of the connecting spring are respectively connected to the solid rod and the positioning plate.

[0012] Preferably, an anti - detachment plate adapted to the telescopic groove is fixedly arranged on the surface of the solid rod, and the solid rod realizes telescoping inside the sleeve through the anti - detachment plate and the telescopic groove.

[0013] Preferably, the outer diameter of the positioning plate is between the inner diameters of the jack and the built - in gasket, and a built - in gasket is also arranged inside the fixing hole.

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

[0015] 1. By arranging the fixed rod assembly and the fixing screws, the first rubber pad and the second rubber pad are connected. A shock - absorbing spring is sleeved outside the fixed rod assembly to increase the overall impact resistance of the rubber pads, and the aging first rubber pad and second rubber pad can be replaced as needed;

[0016] 2. By arranging the fixed rod assembly, the overall length can be adjusted telescopically as needed. The fixed rod assembly is inserted into the shock - absorbing spring, and is fixed through the fixing screws and the fixing gaskets to meet the connection of the first rubber pad and the second rubber pad, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following - described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is the overall structural view of the present utility model;

[0019] Figure 2 It is the structural schematic diagram of the second rubber pad of the present utility model;

[0020] Figure 3 This is a schematic structural view of the fixing gasket of the present utility model;

[0021] Figure 4 This is a half-sectional structural view of the sleeve of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. First rubber pad; 2. Second rubber pad; 3. Fixed rod assembly; 301. Positioning plate; 302. Sleeve; 303. Telescopic groove; 304. Connecting spring; 305. Anti-detachment plate; 306. Solid rod; 4. Insertion hole; 5. Built-in gasket; 6. Fixing hole; 7. Shock-absorbing spring; 8. Installation groove; 9. Polyurethane sound insulation pad; 10. Fixing gasket; 11. Fixing screw. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides a technical solution:

[0026] Please refer to Figures 1 to 3 , an impact-resistant sound insulation rubber pad for an elevator car wall, including a first rubber pad 1, a second rubber pad 2 is connected below the first rubber pad 1, insertion holes 4 are opened at the four corners of the first rubber pad 1, and a built-in gasket 5 with an inner diameter smaller than the inner diameter of the insertion holes 4 is fixedly arranged inside the insertion holes 4. A fixed rod assembly 3 with an adjustable length penetrates through the inside of the built-in gasket 5. Fixing holes 6 are opened at the four corners of the second rubber pad 2, and shock-absorbing springs 7 are installed inside the fixing holes 6;

[0027] The shock-absorbing springs 7 are sleeved outside the fixed rod assembly 3. A fixing gasket 10 is arranged below the fixing holes 6, and the fixing gasket 10 is embedded inside the fixing holes 6. A fixing screw 11 is installed below the fixing gasket 10, and the fixing screw 11 penetrates through the inside of the fixing gasket 10 and is threadedly connected to the fixed rod assembly 3. A plurality of equally spaced and uniformly distributed installation grooves 8 are opened inside both the first rubber pad 1 and the second rubber pad 2. A polyurethane sound insulation pad 9 is arranged inside the installation grooves 8, and the thickness of the polyurethane sound insulation pad 9 is smaller than the depth of the installation grooves 8.

[0028] By adopting the above technical solution, the first rubber pad 1 and the second rubber pad 2 are connected by the fixing rod assembly 3 and the fixing screw 11. A shock-absorbing spring 7 is sleeved outside the fixing rod assembly 3 to increase the overall shock resistance of the rubber pad. Moreover, the first rubber pad 1 and the second rubber pad 2 can be provided with fixing holes 6 and jacks 4 at appropriate positions according to needs to meet the installation requirements of multiple groups of fixing rod assemblies 3, thereby improving the overall shock resistance of the rubber pad. At the same time, the aging first rubber pad 1 and the second rubber pad 2 can be replaced according to needs, or the polyurethane sound insulation pads 9 inside the first rubber pad 1 and the second rubber pad 2 can be replaced according to the sound insulation requirements. Since installation grooves 8 are provided inside the first rubber pad 1 and the second rubber pad 2, and the polyurethane sound insulation pads 9 are arranged in the installation grooves 8, while meeting the good sound insulation and shock absorption effects, the overall weight of the rubber pad can be reduced, making it more convenient to use. At the same time, multiple groups of the first rubber pad 1 and the second rubber pad 2 can be stacked and fixed by the fixing rod assemblies 3 with different lengths for use.

[0029] Specifically, as Figure 4 shown, the fixing rod assembly 3 includes a positioning plate 301. A sleeve 302 is fixedly arranged at the bottom of the positioning plate 301. A solid rod 306 is movably connected inside the sleeve 302. A telescopic groove 303 is opened at the connection between the sleeve 302 and the solid rod 306. A connecting spring 304 is arranged inside the telescopic groove 303. Two ends of the connecting spring 304 are respectively connected to the solid rod 306 and the positioning plate 301. An anti-disengagement plate 305 adapted to the telescopic groove 303 is fixedly arranged on the surface of the solid rod 306. The solid rod 306 realizes telescoping inside the sleeve 302 through the anti-disengagement plate 305 and the telescopic groove 303. The outer diameter of the positioning plate 301 is between the inner diameters of the jack 4 and the built-in gasket 5. The built-in gasket 5 is also arranged inside the fixing hole 6.

[0030] By adopting the above technical solution, the fixing rod assembly 3 is composed of a telescopic sleeve 302 and a solid rod 306. The overall length of the fixing rod assembly 3 can be adjusted telescopically according to needs. During use, the fixing rod assembly 3 is inserted into the shock-absorbing spring 7 and fixed by the fixing screw 11 and the fixing gasket 10 to meet the connection of the first rubber pad 1 and the second rubber pad 2, which is convenient to use. The built-in gasket 5 arranged inside the fixing hole 6 can allow the fixing rod assembly 3 to pass through, so as to facilitate the stacking and use of the second rubber pad 2.

[0031] Working principle: Place a polyurethane sound insulation pad 9 in the installation groove 8 inside the first rubber pad 1 and the second rubber pad 2, or replace the polyurethane sound insulation pad 9 with other gaskets having sound insulation and shock absorption effects. Place a shock absorption spring 7 inside the fixing hole 6 of the second rubber pad 2. Then, close the first rubber pad 1 and the second rubber pad 2 together, insert the fixing rod assembly 3 into the jack 4 and pass through the shock absorption spring 7. Set a fixing gasket 10 at the bottom of the fixing hole 6 on the second rubber pad 2, and fix the fixing screw 11 through the fixing gasket 10 to the fixing rod assembly 3. Since the length of the fixing rod assembly 3 can be adjusted telescopically as needed, it can penetrate inside multiple groups of second rubber pads 2, and an appropriate number of second rubber pads 2 can be selected for superposition and use as needed.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An impact-resistant elevator car wall sound-insulating rubber pad, comprising a first rubber pad (1), characterized in that: A second rubber pad (2) is connected below the first rubber pad (1); four corners of the first rubber pad (1) are provided with insertion holes (4); an internal gasket (5) having an inner diameter smaller than that of the insertion hole (4) is fixedly arranged inside the insertion hole (4); a fixing rod assembly (3) of adjustable length penetrates inside the internal gasket (5); four corners of the second rubber pad (2) are provided with fixing holes (6), and shock-absorbing springs (7) are installed inside the fixing holes (6); The shock absorbing spring (7) is sleeved on the outside of the fixing rod assembly (3); a fixing gasket (10) is arranged below the fixing hole (6), and the fixing gasket (10) is embedded in the fixing hole (6); a fixing screw (11) is installed below the fixing gasket (10), and the fixing screw (11) passes through the inside of the fixing gasket (10) and is threadedly connected to the fixing rod assembly (3).

2. The impact-resistant elevator car wall sound insulation rubber pad according to claim 1, characterized in that: The first rubber pad (1) and the second rubber pad (2) are each provided with a plurality of installation grooves (8) that are evenly distributed at equal distances.

3. The impact-resistant elevator car wall sound insulation rubber pad according to claim 2, characterized in that: A polyurethane sound insulation pad (9) is arranged inside the installation groove (8), and the thickness of the polyurethane sound insulation pad (9) is smaller than the depth of the installation groove (8).

4. The impact-resistant elevator car wall sound insulation rubber pad according to claim 1, characterized in that: The fixed rod assembly (3) comprises a positioning plate (301), a sleeve (302) is fixedly arranged at the bottom of the positioning plate (301), and a solid rod (306) is movably connected inside the sleeve (302).

5. The impact-resistant elevator car wall sound insulation rubber pad according to claim 4, characterized in that: A telescopic groove (303) is provided at the connection between the sleeve (302) and the solid rod (306), and a connecting spring (304) is provided inside the telescopic groove (303). Two ends of the connecting spring (304) are respectively connected to the solid rod (306) and the positioning plate (301).

6. The impact-resistant elevator car wall sound insulation rubber pad according to claim 5, characterized in that: An anti-slip plate (305) adapted to the telescopic groove (303) is fixedly provided on the surface of the solid rod (306), and the solid rod (306) is telescopically movable in the sleeve (302) via the anti-slip plate (305) and the telescopic groove (303).

7. The impact-resistant elevator car wall sound insulation rubber pad according to claim 6, characterized in that: The outer diameter of the positioning plate (301) is between the inner diameters of the insertion hole (4) and the built-in gasket (5), and a built-in gasket (5) is also provided inside the fixing hole (6).

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