CN220667302U - Cabin door closing structure of sound insulation test cabin - Google Patents
Cabin door closing structure of sound insulation test cabin Download PDFInfo
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- CN220667302U CN220667302U CN202322083357.8U CN202322083357U CN220667302U CN 220667302 U CN220667302 U CN 220667302U CN 202322083357 U CN202322083357 U CN 202322083357U CN 220667302 U CN220667302 U CN 220667302U
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- 238000009413 insulation Methods 0.000 title claims abstract description 160
- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a cabin door closing structure of a sound insulation test cabin in the technical field of sound insulation test boxes, which comprises a sound insulation cabin body and a sound insulation cabin door, wherein the interior of the sound insulation cabin body is of a hollow structure, a test cavity for placing a product to be tested is arranged in the sound insulation cabin body, a buffer gap is reserved between a sound insulation door frame and a cabin door opening, a plurality of wall body shock absorbers are arranged in the buffer gap, the outer wall of the sound insulation door frame is movably connected with the cabin door opening through the wall body shock absorbers, when the sound insulation cabin door is closed in the sound insulation door frame in the actual use process, low-frequency vibration generated between the sound insulation cabin door and the sound insulation door frame can be buffered and absorbed through the wall body shock absorbers between the sound insulation door frame and the cabin door opening, the vibration attenuation rate of the low-frequency vibration is increased, the low-frequency vibration can be effectively prevented from being transmitted to the sound insulation cabin body, the vibration system is greatly increased due to the resonance phenomenon is reduced, and the influence on the sound insulation test of the product in the sound insulation test cabin is reduced.
Description
Technical Field
The utility model relates to the technical field of sound insulation test boxes, in particular to a cabin door closing structure of a sound insulation test cabin.
Background
In recent years, with the daily and monthly variation of electronic products, consumers have higher and higher requirements on the quality of the products, the testing work of the electronic products is also more and more complicated, and the acoustic audio test is an important component of the functional test of the electronic products. In order to accurately test the audio performance of the electronic product, the test process needs to be performed in a sound insulation room which is not affected by external noise. The soundproof house can also be applied to the fields of machinery, air conditioner, medical treatment and the like. Most of the existing sound insulation chambers adopt reinforced concrete or gypsum board structures, and objects to be detected need to be placed into the test sound insulation box in the sound insulation chamber for detection.
According to the prior art, the Chinese utility model application with the publication number of CN108019061A describes an acoustic test sound insulation box, which comprises a wall body, a top plate and a bottom plate, wherein the wall body, the top plate and the bottom plate jointly enclose a square sound insulation chamber, the wall body comprises a front plate, a rear plate and left and right side plates, a sound insulation door is arranged on the front plate, and the sound insulation door comprises an outer sound insulation door and an inner sound insulation door. The wall body, the roof and the bottom plate internal surface all are equipped with the boss, boss size all is less than wall body, roof and bottom plate surface size, can unsmooth cooperation between the adjacent boss, wall body, roof and bottom plate pass through bolt fixed connection. The acoustic test sound insulation box is simple in structure and can effectively isolate outdoor noise.
However, the door closing structure in the acoustic test sound insulation box is a traditional hinge door closing structure, and when the sound insulation door is closed, low-frequency vibration is generated between the sound insulation door and the door frame due to collision vibration, wherein the vibration attenuation rate refers to the change rate of the vibration amplitude along with time in the vibration process of the vibration system. In some low frequency vibrations, resonance phenomenon occurs at the vibration attenuation rate, resulting in a sharp increase in the amplitude of the vibration system, thereby affecting the mute test of the product in the soundproof test cabin.
Accordingly, there is a need for a door closure structure for a soundproof test compartment to solve the above problems.
Disclosure of Invention
The utility model aims to provide a cabin door closing structure of a sound insulation test cabin, which aims to better solve the technical problem that the vibration attenuation rate of low-frequency vibration generated by collision vibration between a sound insulation cabin door and a door frame can generate resonance phenomenon, so that the amplitude of a vibration system is increased sharply, and the mute test of products in the sound insulation test cabin is affected.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the cabin door closing structure of the sound insulation test cabin comprises a sound insulation cabin body and a sound insulation cabin door, wherein the interior of the sound insulation cabin body is of a hollow structure, the interior of the sound insulation cabin body is a test chamber for placing a product to be tested, one side of the sound insulation cabin body is provided with a cabin door opening, the cabin door opening is in conductive connection with the test chamber,
the inside of hatch door mouth is equipped with the door assorted that gives sound insulation with give sound insulation, gives sound insulation the door frame for frame form hollow structure, and the edge at the hatch door mouth is established to the door frame cover that gives sound insulation, leaves a buffer gap between door mouth and the door frame that gives sound insulation, and buffer gap's inside is equipped with a plurality of wall body bumper shock absorber, and the outer wall of door frame that gives sound insulation carries out swing joint with the hatch door mouth through wall body bumper shock absorber.
In the above description, as a further scheme, the sound insulation door frame is rectangular frame-shaped structure, and the inner wall of sound insulation door frame inclines to the center of test cavity and sets up, and the sound insulation hatch door is close to the outside bellied gomphosis boss of test cavity's a side, and the gomphosis boss is frustum-shaped structure, and the gradient of gomphosis boss lateral wall and the inner wall phase-match of sound insulation door frame, when sound insulation hatch door and sound insulation door frame are closed, the gomphosis boss can inlay to the inner wall of sound insulation door frame.
In the above description, as a further scheme, the inner wall of the soundproof door frame is provided with a plurality of step-shaped first threshold portions, the surface of the embedded boss is provided with second threshold portions matched with the first threshold portions, and when the embedded boss is embedded into the soundproof door frame, the first threshold portions and the second threshold portions are in one-to-one clearance fit.
In the above description, as a further scheme, the side that is close to the sound insulation cabin door of sound insulation cabin body is equipped with the door platform that closes of outside extension, and the sound insulation cabin door passes through sharp slip table mechanism swing joint at the top of closing the door platform, and sound insulation cabin door accessible sharp slip table mechanism carries out horizontal migration to in the sound insulation door frame in the top of closing the door platform.
In the above-mentioned explanation, as a further scheme, the hatch door that gives sound insulation is connected with sharp slip table mechanism through the fixed bolster, sharp slip table mechanism includes sharp lead screw and drive slider, and the middle part of sharp lead screw carries out the spiro union with drive slider, and the bottom of fixed bolster is equipped with the bellied first supporting legs downwards, and the fixed bolster carries out fixed connection through first supporting legs and drive slider, and the hatch door that gives sound insulation is kept away from one side of hatch door that gives sound insulation and carries out fixed connection with one side of the top of fixed bolster.
In the above description, as a further aspect, a sinking groove is formed in the top end surface of the door closing platform, and the linear sliding table mechanism is disposed inside the sinking groove.
In the above-mentioned explanation, as a further scheme, the top face of closing the door platform is equipped with a plurality of first direction slide rail mechanism, and first direction slide rail mechanism sets up in the both sides of sinking groove respectively, and first direction slide rail mechanism includes first guide rail and first slider, and first guide rail fixed connection is at the top face of closing the door platform, and first slider slidable connects at the middle part of first guide rail, and the bottom both sides of fixed bolster all are equipped with the bellied second supporting legs downwards, and two second supporting legs carry out fixed connection with first slider respectively.
In the above description, as a further scheme, a side surface of the sound insulation cabin door, which is close to the test chamber, is provided with a carrying drawing board for placing a product to be tested, one end of the carrying drawing board is fixedly connected to a side surface of the sound insulation cabin door, and the other end of the carrying drawing board horizontally extends to the inside of the test chamber.
In the above-mentioned explanation, as a further scheme, the inside of test cavity is equipped with second direction slide rail mechanism, and second direction slide rail mechanism includes second guide rail and second slider, and the second guide rail sets up in the inner wall bottom of test cavity horizontally, and the second slider slidable connects in the middle part of second guide rail, and the one end that the sound insulation hatch door was kept away from to the loading board carries out fixed connection with the second slider.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a cabin door closed structure of test cabin gives sound insulation, leave a buffer gap between sound insulation door frame and hatch door mouth, buffer gap's inside is equipped with a plurality of wall body bumper shock absorber, sound insulation door frame's outer wall carries out swing joint through wall body bumper shock absorber and hatch door mouth, when the cabin door that gives sound insulation is closed in to the sound insulation door frame in actual use, the produced low frequency vibration accessible sound insulation door frame between sound insulation door and the sound insulation door frame carries out the buffering absorption with the wall body bumper shock absorber between the hatch door mouth, increase low frequency vibration's vibration attenuation rate, can avoid low frequency vibration to propagate to the cabin body that gives sound insulation effectively, reduce because resonance phenomenon, lead to vibration system's amplitude to increase sharply, thereby reduce the influence to the product silence test in the test cabin that gives sound insulation.
Drawings
Fig. 1 is a schematic perspective view of a door closing structure of a soundproof test cabin according to the present utility model;
FIG. 2 is a schematic view showing the internal structure of a door closing structure of a soundproof test cabin according to the present utility model;
FIG. 3 is a schematic view of the enlarged partial structure of FIG. 2A;
FIG. 4 is a schematic view of the structure of FIG. 2B in a partially enlarged manner;
in the figure: 1-sound insulation cabin body, 2-sound insulation cabin door, 21-jogged boss, 22-second threshold portion, 3-door closing platform, 31-sink, 4-test cavity, 41-cabin door opening, 5-sound insulation door frame, 51-buffer gap, 52-wall damper, 53-first threshold portion, 6-straight sliding table mechanism, 61-straight lead screw, 62-driving slide block, 7-fixed bolster, 71-first supporting leg, 72-second supporting leg, 8-bearing drawer plate, 81-second guiding slide rail mechanism, 811-second guide rail, 812-second slide block, 9-first guiding slide rail mechanism, 91-first guide rail, 92-first slide block, 10-fixed jig, 11-wall damper.
Detailed Description
The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model. The present utility model will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1-4, a door closing structure of a sound insulation test cabin is implemented specifically, the sound insulation test cabin comprises a sound insulation cabin body 1 and a sound insulation cabin door 2, the interior of the sound insulation cabin body 1 is of a hollow structure, a test chamber 4 for placing a product to be tested is arranged in the sound insulation cabin body 1, a cabin door opening 41 is formed in one side of the sound insulation cabin body 1, a door closing platform 3 extending outwards is arranged on one side of the sound insulation cabin body 1, which is close to the sound insulation cabin door 2, the sound insulation cabin door 2 is movably connected to the top of the door closing platform 3 through a linear sliding table mechanism 6, the sound insulation cabin door 2 can horizontally move to a sound insulation door frame 5 above the door closing platform 3 through the linear sliding table mechanism 6, the cabin door opening 41 is in conductive connection with the test chamber 4, a bearing suction plate 8 for placing the product to be tested is arranged on one side of the sound insulation cabin door 2, one end of the bearing suction plate 8 is fixedly connected to one side of the sound insulation cabin door 2, and the other end of the bearing suction plate 8 horizontally extends to the interior of the test chamber 4;
as shown in fig. 3, a soundproof door frame 5 matched with the soundproof cabin door 2 is arranged in the cabin door 41, the soundproof door frame 5 is of a frame-shaped hollow structure, the soundproof door frame 5 is sleeved at the edge of the cabin door opening 41, a buffer gap 51 is reserved between the soundproof door frame 5 and the cabin door opening 41, a plurality of wall shock absorbers 52 are arranged in the buffer gap 51, and the outer wall of the soundproof door frame 5 is movably connected with the cabin door opening 41 through the wall shock absorbers 52.
When the sound insulation cabin door 2 is closed in the sound insulation door frame 5, low-frequency vibration generated between the sound insulation cabin door 2 and the sound insulation door frame 5 can be buffered and absorbed through the wall damper 52 between the sound insulation door frame 5 and the cabin door opening 41, so that the vibration attenuation rate of the low-frequency vibration is increased, the low-frequency vibration can be effectively prevented from being transmitted to the sound insulation cabin body 1, the vibration amplitude of the vibration system is greatly increased due to the resonance phenomenon, and the influence on the mute test of products in the sound insulation test cabin is reduced.
Specifically, as shown in fig. 1 and 2, the soundproof door frame 5 is in a rectangular frame structure, the inner wall of the soundproof door frame 5 is inclined towards the center of the test chamber 4, one side surface of the soundproof door 2, which is close to the test chamber 4, is an outwards-protruding embedded boss 21, the embedded boss 21 is in a frustum-shaped structure, the inclination of the side wall of the embedded boss 21 is matched with the inner wall of the soundproof door frame 5, and when the soundproof door 2 and the soundproof door frame 5 are closed, the embedded boss 21 can be embedded into the inner wall of the soundproof door frame 5. By mutually engaging the engagement boss 21 having a truncated cone-like structure with the soundproof door frame 5 having a rectangular frame-like structure, the contact area between the soundproof door frame 5 and the soundproof door 2 can be increased, and the sealing property between the soundproof door frame 5 and the soundproof door 2 can be improved.
Specifically, as shown in fig. 1 and 2, the inner wall of the soundproof door frame 5 is provided with a plurality of stepped first threshold portions 53, the surface of the fitting boss 21 is provided with second threshold portions 22 matching the first threshold portions 53, and when the fitting boss 21 is fitted into the soundproof door frame 5, the first threshold portions 53 and the second threshold portions 22 are in one-to-one clearance fit. In practical application, gaps are unavoidably formed between the sound insulation door frame 5 and the sound insulation cabin door 2, the surface of the embedded boss 21 is continuously bent and is in step-shaped second threshold part 22 and the first threshold part 53 of the inner wall of the sound insulation door frame 5 are in one-to-one clearance fit, so that external sound is buffered by taking air as a medium to continuously bent gaps between the sound insulation door frame 5 and the sound insulation cabin door 2, the sound outside the sound insulation test cabin can be greatly reduced to a certain extent and transmitted to the test cavity 4, and the sound insulation effect of the sound insulation test cabin is improved.
Specifically, as shown in fig. 1 and 2, the soundproof cabin door 2 is connected with the linear sliding table mechanism 6 through the fixing bracket 7, the linear sliding table mechanism 6 comprises a linear screw 61 and a driving sliding block 62, the middle part of the linear screw 61 is in threaded connection with the driving sliding block 62, a first supporting leg 71 protruding downwards is arranged at the bottom of the fixing bracket 7, the fixing bracket 7 is fixedly connected with the driving sliding block 62 through the first supporting leg 71, and one side surface of the soundproof cabin door 2 away from the soundproof cabin door 2 is fixedly connected with one side of the top of the fixing bracket 7. The top end surface of the door closing platform 3 is provided with a sinking groove 31 which is sunken downwards, and the linear sliding table mechanism 6 is arranged in the sinking groove 31.
The top end face of the door closing platform 3 is provided with a plurality of first guide slide rail mechanisms 9, the first guide slide rail mechanisms 9 are respectively arranged on two sides of the sinking groove 31, each first guide slide rail mechanism 9 comprises a first guide rail 91 and a first slide block 92, the first guide rail 91 is fixedly connected to the top end face of the door closing platform 3, the first slide block 92 is slidably connected to the middle of the first guide rail 91, the two sides of the bottom of the fixed support 7 are respectively provided with a second supporting leg 72 protruding downwards, and the two second supporting legs 72 are respectively fixedly connected with the first slide block 92. The inside of test cavity 4 is equipped with second direction slide rail mechanism 81, and second direction slide rail mechanism 81 includes second guide rail 811 and second slider 812, and second guide rail 811 sets up in the inner wall bottom of test cavity 4 horizontally, and second slider 812 slidably connects in the middle part of second guide rail 811, and the one end that the sound insulation hatch door 2 was kept away from to bearing board 8 carries out fixed connection with second slider 812.
A cabin door closing process of a sound insulation test cabin: by rotating the linear screw 61, the driving slide block 62 drives the soundproof cabin door 2 on the fixed bracket 7 to move to one side of the testing chamber 4, the first guiding slide rail mechanism 9 plays a guiding and limiting role for the movement of the fixed bracket 7 on the door closing platform 3, meanwhile, the bearing drawing plate 8 can extend to the inside of the testing chamber 4 in the moving process of the soundproof cabin door 2, so that a product to be tested on the bearing drawing plate 8 is placed in the testing chamber 4, when the soundproof cabin door 2 collides and closes into the soundproof door frame 5, low-frequency vibration generated between the soundproof cabin door 2 and the soundproof door frame 5 can be buffered and absorbed through the wall damper 52 between the soundproof door frame 5 and the cabin door opening 41, the vibration attenuation rate of low-frequency vibration is increased, the low-frequency vibration can be effectively prevented from being transmitted to the sound insulation cabin body 1, the vibration amplitude of a vibration system is increased sharply due to the resonance phenomenon, the influence on the mute test of products in the sound insulation test cabin is reduced, and finally certain propelling force is applied to the sound insulation cabin door 2 through the linear sliding table mechanism 6, so that a continuously bent gap between the sound insulation door frame 5 and the sound insulation cabin door 2 is reduced, the tightness between the sound insulation door frame 5 and the sound insulation cabin door 2 is improved, and the cabin door of the sound insulation test cabin is closed.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (9)
1. The utility model provides a cabin door closed structure of test cabin gives sound insulation, includes the cabin body that gives sound insulation and gives sound insulation cabin door, and the inside of cabin body that gives sound insulation is hollow structure, and the inside of cabin body that gives sound insulation is for being used for placing the test chamber of product that awaits measuring, and cabin door has been seted up to one side of cabin body that gives sound insulation, and cabin door carries out conduction connection with test chamber, its characterized in that:
the inside of hatch door mouth is equipped with the door assorted that gives sound insulation with give sound insulation, gives sound insulation the door frame for frame form hollow structure, and the edge at the hatch door mouth is established to the door frame cover that gives sound insulation, leaves a buffer gap between door mouth and the door frame that gives sound insulation, and buffer gap's inside is equipped with a plurality of wall body bumper shock absorber, and the outer wall of door frame that gives sound insulation carries out swing joint with the hatch door mouth through wall body bumper shock absorber.
2. A door closure for a sound insulation test pod according to claim 1, wherein: the sound insulation door frame is rectangular frame-shaped structure, the inner wall of the sound insulation door frame inclines towards the center of the testing chamber, one side surface of the sound insulation cabin door close to the testing chamber is an outwards protruding embedded boss, the embedded boss is of a frustum-shaped structure, the inclination of the side wall of the embedded boss is matched with the inner wall of the sound insulation door frame, and when the sound insulation cabin door and the sound insulation door frame are closed, the embedded boss can be embedded to the inner wall of the sound insulation door frame.
3. A door closure for a sound insulation test pod according to claim 2, wherein: the inner wall of sound insulation door frame is equipped with the first threshold portion of a plurality of echelonment, and the surface of gomphosis boss is equipped with and first threshold portion assorted second threshold portion, and when the gomphosis boss inlayed to the inside of sound insulation door frame, carries out the clearance fit of one-to-one between first threshold portion and the second threshold portion.
4. A door closure for a sound insulation test compartment according to any one of claims 1-3, characterized in that: the sound insulation cabin body is close to one side of the sound insulation cabin door and is provided with an outwards extending door closing platform, the sound insulation cabin door is movably connected to the top of the door closing platform through a linear sliding table mechanism, and the sound insulation cabin door can horizontally move to the inside of the sound insulation door frame above the door closing platform through the linear sliding table mechanism.
5. A door closure for a sound insulation test pod according to claim 4, wherein: the sound insulation cabin door is connected with the linear sliding table mechanism through the fixing support, the linear sliding table mechanism comprises a linear screw rod and a driving sliding block, the middle part of the linear screw rod is in threaded connection with the driving sliding block, a first supporting leg protruding downwards is arranged at the bottom of the fixing support, the fixing support is fixedly connected with the driving sliding block through the first supporting leg, and one side surface of the sound insulation cabin door, far away from the sound insulation cabin door, is fixedly connected with one side of the top of the fixing support.
6. A door closure for a sound insulation test pod according to claim 5, wherein: the top end surface of the door closing platform is provided with a sinking groove which is sunken downwards, and the linear sliding table mechanism is arranged in the sinking groove.
7. A door closure for a sound insulation test pod according to claim 6, wherein: the top end face of the door closing platform is provided with a plurality of first guide slide rail mechanisms, the first guide slide rail mechanisms are respectively arranged on two sides of the sinking groove, each first guide slide rail mechanism comprises a first guide rail and a first sliding block, the first guide rail is fixedly connected to the top end face of the door closing platform, the first sliding blocks are slidably connected to the middle of the first guide rail, the two sides of the bottom of the fixing support are respectively provided with a second supporting leg protruding downwards, and the two second supporting legs are respectively fixedly connected with the first sliding blocks.
8. A door closure for a sound insulation test pod according to claim 4, wherein: the sound insulation cabin door is characterized in that a bearing drawing plate used for placing products to be tested is arranged on one side face of the sound insulation cabin door, which is close to the testing chamber, one end of the bearing drawing plate is fixedly connected to one side face of the sound insulation cabin door, and the other end of the bearing drawing plate horizontally extends towards the inside of the testing chamber.
9. A door closure for a sound insulation test pod according to claim 8, wherein: the inside of test cavity is equipped with second direction slide rail mechanism, and second direction slide rail mechanism includes second guide rail and second slider, and the second guide rail level sets up in the inner wall bottom of test cavity, and the second slider slidable ground is connected in the middle part of second guide rail, and the one end that the sound insulation hatch door was kept away from to the loading board carries out fixed connection with the second slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322083357.8U CN220667302U (en) | 2023-08-04 | 2023-08-04 | Cabin door closing structure of sound insulation test cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322083357.8U CN220667302U (en) | 2023-08-04 | 2023-08-04 | Cabin door closing structure of sound insulation test cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220667302U true CN220667302U (en) | 2024-03-26 |
Family
ID=90344777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322083357.8U Active CN220667302U (en) | 2023-08-04 | 2023-08-04 | Cabin door closing structure of sound insulation test cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220667302U (en) |
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2023
- 2023-08-04 CN CN202322083357.8U patent/CN220667302U/en active Active
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