CN213838402U - Sound-proof door pressing device - Google Patents

Abstract

The utility model discloses a soundproof door closing device, the outside of setting behind soundproof door and silence test box hinge, including setting up the fixed briquetting of soundproof door side and the subassembly that compresses tightly of setting on the silence test box, compress tightly the subassembly including compressing tightly the cylinder, door tongue briquetting and door tongue fixing support, door tongue fixing support sets up on the silence test box, the door tongue briquetting passes through the pivot and articulates on door tongue fixing support, the door tongue briquetting of pivot one side supports and presses on fixed briquetting, the door tongue briquetting of pivot opposite side with compress tightly the cylinder and be connected, it drives door tongue briquetting and moves to the direction that is close to or keeps away from fixed briquetting to compress tightly the cylinder, realize the action of opening and close of door tongue briquetting, when door tongue briquetting is in the closed condition, it drives door tongue briquetting and continues to exert pressure to fixed briquetting direction to compress tightly the door tongue briquetting on to fixed briquetting. The utility model provides a crack sealed problem between soundproof door and the silence test box, improved the sound insulation effect in the silence test box.

Description

Sound-proof door pressing device

Technical Field

The utility model relates to a silence test box field, concretely relates to soundproof door closing device.

Background

A mute test box of equipment, also called a sound insulation box and a sound shielding box, for meeting the low noise environment requirement of audio frequency test is an isolation cavity made of sound absorption, damping, sound insulation, vibration reduction materials and the like, provides a low noise detection environment far lower than the environmental noise for the noise detection of products, and has high acoustic performance index requirement.

The sound insulation door is arranged on the box body of the silence test box, the test equipment is taken and placed through the opening and closing of the sound insulation door, in the actual using process, the actual sound insulation quantity of the sound insulation door is usually reduced more than the theoretical sound insulation quantity, the gap sound leakage between the sound insulation door and the box body is one of main factors causing the sound leakage of the door body and is also one of the technical difficulties which are difficult to solve, even if the sound insulation door with the higher theoretical sound insulation quantity still has the possibility of causing the sound insulation quantity to be seriously reduced due to the gap, for example, the size of a conventional single-opening door is 800-2000 mm, and the width of the door gap is assumed to be 10 mm. The ratio of the area of the slot to the area of the entire component is about 1: 10.7. When the sound insulation amount of the sound insulation door is 30dB, the sound insulation amount is reduced by about 20dB, and the actual sound insulation amount of the door is only 10 dB.

In conclusion, the width of the sound insulation door crack is controlled, and the sound insulation effect in the silence test box can be effectively improved.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a soundproof door closing device, solved the sealed problem of crack between soundproof door and the silence test box, improved the sound insulation effect in the silence test box.

In order to solve the technical problem, the utility model provides a soundproof door pressing device, which is arranged at the outer side behind hinges of a soundproof door and a silence testing box, and comprises a fixed pressing block arranged at the side surface of the soundproof door and a pressing component arranged on the silence testing box, wherein the pressing component comprises a pressing cylinder, a door tongue pressing block and a door tongue fixed support, the door tongue fixed support is arranged on the silence testing box, the door tongue pressing block is hinged on the door tongue fixed support through a pivot, the door tongue pressing block at one side of the pivot is pressed on the fixed pressing block, the door tongue pressing block at the other side of the pivot is connected with the pressing cylinder, the pressing cylinder drives the door tongue pressing block to move upwards in the direction close to or far away from the fixed pressing block, so as to realize the opening and closing actions of the door tongue pressing block, when the door tongue pressing block is in a closed state, the pressing cylinder drives the door tongue pressing block to continue to apply pressure to the direction of the fixed pressing block, and the door tongue pressing block is pressed tightly on the fixed pressing block.

The utility model discloses a preferred embodiment, further include be provided with the sealing strip between soundproof door and the silence test box, the sealing strip sets up the periphery at the soundproof door inner wall.

The utility model discloses a preferred embodiment, further include still be provided with cylinder fixing support on the silence test box, it includes the cylinder body and compresses tightly the pole to compress tightly the cylinder, cylinder body fixed connection is on cylinder fixing support, compress tightly pole fixed connection is on the latch briquetting.

The utility model discloses a preferred embodiment, further include, soundproof door and silence test box pass through hinge connection.

The utility model discloses a preferred embodiment, further include the hinge is two hinges, be provided with two hinges between soundproof door and the silence test box.

In a preferred embodiment of the present invention, further comprising the fixing pressing block is away from the hinge.

The utility model discloses a preferred embodiment, further include compress tightly the cylinder and open through solenoid valve control and stop.

In a preferred embodiment of the present invention, a handle is further disposed outside the soundproof door.

The utility model has the advantages that:

the utility model discloses a compress tightly the subassembly, drive the latch briquetting through compressing tightly the cylinder and move in the direction that is close to or keeps away from fixed briquetting, realize opening and close action of latch briquetting to, when the latch briquetting is in the closed condition, compress tightly the cylinder and drive the latch briquetting and continue to exert pressure to fixed briquetting direction, compress tightly the latch briquetting on to fixed briquetting, guarantee to be in the limit between soundproof door and the silence test box and compress tightly the state, guarantee not have the space between soundproof door and the silence test box, improve the sound insulation effect.

Drawings

Fig. 1 is a schematic front structural view of the compressing device of the present invention;

fig. 2 is a schematic perspective view of the compressing device of the present invention.

The reference numbers in the figures illustrate: 1. a silence test box; 2. a sound-proof door; 3. fixing a pressing block; 4. a pressing cylinder; 5. the door tongue is pressed; 6. a door bolt fixing seat; 7. a cylinder fixing support; 8. a hinge; 9. a handle.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-2, the utility model discloses an embodiment of soundproof door closing device sets up the outside behind soundproof door 2 and silence test box 1 hinge, realizes behind soundproof door 2 and silence test box 1 hinge, makes to be in the limit state of compression between soundproof door 2 and the silence test box 1, guarantees not to have the space between soundproof door 2 and the silence test box 1. The soundproof door pressing device comprises a fixed pressing block 3 arranged on the side surface of a soundproof door 2 and a pressing assembly arranged on a silence testing box 1, the pressing assembly comprises a pressing cylinder 4, a door tongue pressing block 5 and a door tongue fixing support 6, the door tongue fixing support 6 is arranged on the silence testing box 1, the door tongue pressing block 5 is hinged on the door tongue fixing support 6 through a pivot, the door tongue pressing block 5 on one side of the pivot is pressed against the fixed pressing block 3, the door tongue pressing block 5 on the other side of the pivot is connected with the pressing cylinder 4, the pressing cylinder 4 drives the door tongue pressing block 5 to move towards the direction close to or far away from the fixed pressing block 3, the opening and closing actions of the door tongue pressing block 5 are realized, when the door tongue pressing block 5 is in an opening state, the soundproof door 2 can be opened relative to the silence testing box 1, when the door tongue pressing block 5 is in a closing state, the pressing cylinder 4 drives the door tongue pressing block 5 to continue to apply pressure towards the fixed pressing block 3, the door tongue pressing block 5 is pressed towards the fixed pressing block 3, so that the sound insulation door 2 and the silence testing box 1 are in a limit pressing state, no gap is reserved between the sound insulation door 2 and the silence testing box 1, and the sound insulation effect is improved.

In order to further improve the sealing effect between the soundproof door 2 and the silence test box 1, in this embodiment, a sealing strip is arranged between the soundproof door 2 and the silence test box 1, and the sealing strip is arranged on the periphery of the inner wall of the soundproof door 2; in other embodiments, the sealing strip may be disposed on the outer wall of the mute test box 1.

Specifically, silence test box 1 still is provided with cylinder fixing support 7, compress tightly cylinder 4 and include cylinder body and compression bar, cylinder body fixed connection is on cylinder fixing support 7, compression bar fixed connection is on door tongue briquetting 5, the cylinder body drives the compression bar and realizes the flexible in the cylinder body, compress tightly cylinder 4 and pass through the flexible direction of solenoid valve control, and in compressed air entered into the cylinder body through the solenoid valve, the compression bar that promotes in the cylinder body stretches out, and when the reverse action of solenoid valve, the compression bar in the cylinder body is withdrawed, through stretching out and withdrawing the opening and close action that drives door tongue briquetting 5 of compression bar.

Specifically, soundproof door 2 and silence test box 1 pass through hinge 8 and connect, hinge 8 is two hinge, be provided with two hinge 8 between soundproof door 2 and the silence test box 1, two hinge 8 set up respectively at soundproof door 2 and the upper end and the lower extreme of silence test box 1 for realize the connection at upper and lower both ends.

In order to facilitate the compression of the soundproof door 2 and the silence test box 1 by the minimum pressure of the door tongue pressing block 5, the length of the force arm is increased as much as possible according to the lever principle, so that the fixed pressing block 3 is far away from the hinge 8, the force arm is the longest when the door tongue pressing block 5 applies force, and the required force is the minimum when the soundproof door 2 is compressed.

In order to conveniently realize the opening or closing of the soundproof door 2, a handle 9 is further arranged on the outer side of the soundproof door 2.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (8)

1. A soundproof door pressing device is arranged on the outer side of the soundproof door and the hinge of a silence test box, it is characterized by comprising a fixed pressing block arranged on the side surface of the soundproof door and a pressing component arranged on the silence testing box, the compressing assembly comprises a compressing cylinder, a door tongue pressing block and a door tongue fixing support, the door tongue fixing support is arranged on the silence testing box, the door tongue pressing block is hinged on the door tongue fixing support through a pivot, the door tongue pressing block on one side of the pivot is pressed on the fixing pressing block, the door tongue pressing block on the other side of the pivot is connected with the pressing cylinder, the pressing cylinder drives the door tongue pressing block to move towards the direction close to or far away from the fixed pressing block, the opening and closing action of the door tongue pressing block is realized, when the door tongue pressing block is in a closed state, the pressing cylinder drives the door tongue pressing block to continuously apply pressure to the direction of the fixed pressing block, and the door tongue pressing block is pressed on the fixed pressing block.

2. The soundproof door holding down device according to claim 1, wherein a seal strip is provided between the soundproof door and the silence test box, and the seal strip is provided on an outer periphery of an inner wall of the soundproof door.

3. The soundproof door pressing device according to claim 1, wherein the silence test box is further provided with a cylinder fixing support, the compression cylinder comprises a cylinder body and a compression rod, the cylinder body is fixedly connected to the cylinder fixing support, and the compression rod is fixedly connected to the latch pressing block.

4. The soundproof door hold down of claim 1, wherein said soundproof door and said silent test case are connected by a hinge.

5. The soundproof door holding down device of claim 4, wherein said hinge means is a double hinge, and two hinge means are provided between said soundproof door and said silent test case.

6. The soundproof door press apparatus defined in claim 5, wherein said fixed pressing piece is disposed away from said hinge leaf.

7. The soundproof door holding down device of claim 1, wherein the hold down cylinder is controlled to be turned on and off by a solenoid valve.

8. The soundproof door holding down device according to claim 1, wherein a handle is further provided on an outer side of said soundproof door.

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