CN113496691A - Building tool noise-proof equipment for construction site - Google Patents
Building tool noise-proof equipment for construction site Download PDFInfo
- Publication number
- CN113496691A CN113496691A CN202110844959.3A CN202110844959A CN113496691A CN 113496691 A CN113496691 A CN 113496691A CN 202110844959 A CN202110844959 A CN 202110844959A CN 113496691 A CN113496691 A CN 113496691A
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- Prior art keywords
- construction
- sliding
- box body
- mounting
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims 5
- 238000002955 isolation Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005192 partition Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Building Environments (AREA)
Abstract
The invention relates to noise-proof equipment, in particular to noise-proof equipment for a construction tool for construction in a construction site. The utility model provides a building tool noise-proof equipment for site construction that noise reduction effect is good. A building tool noise-proof device for construction at a construction site comprises: installing a box body; two sliding cover plates are arranged and are arranged on the mounting box body in a sliding manner; the sliding rail is arranged on the mounting box body; the mounting plate is slidably mounted on the slide rail. The fixing and sound insulation component can insulate sound, the isolation component can further insulate sound, the mounting plate can be automatically upwards bounced through the bouncing component, the mounting plate can be fixed through the stable mounting component, the mounting plate can be more conveniently mounted by people, the sliding cover plate can be clamped through the clamping component during use, the sliding cover plate is prevented from being opened, and the sliding cover plate can be more conveniently opened by people through the convenient opening component.
Description
Technical Field
The invention relates to noise-proof equipment, in particular to noise-proof equipment for a construction tool for construction in a construction site.
Background
With the development of modernization, more and more work is carried out on the construction, but the construction tools used in the construction of a construction site have high noise, and the life of nearby residents is seriously influenced.
At present, fall making an uproar all through modes such as pad sponge to building tool, but carry out noise reduction effect through this kind of mode general, the foam-rubber cushion is damaged easily moreover, and the foam-rubber cushion after the use does not clear up, also can cause the influence to the environment.
Therefore, it is necessary to design a noise preventing apparatus for construction tools for construction of a construction site, which has a good noise reduction effect, to solve the above problems.
Disclosure of Invention
In order to overcome the defect of high construction noise at a construction site, the invention has the technical problems that: the utility model provides a building tool noise-proof equipment for site construction that noise reduction effect is good.
The technical implementation scheme of the invention is as follows: a building tool noise-proof device for construction at a construction site comprises: installing a box body; two sliding cover plates are arranged and are arranged on the mounting box body in a sliding manner; the sliding rail is arranged on the mounting box body; the mounting plate is slidably mounted on the slide rail; the sliding block is arranged on the sliding rail in a sliding manner and is connected with the mounting plate; and the fixing and sound insulation assembly is arranged on the mounting box body.
More preferably, the fixing and noise insulation assembly comprises: the hollow shell is arranged on the mounting box body; at least two plugs are arranged and are arranged on the hollow shell in a sliding manner; the piston rod is arranged between the plugs and is connected with the hollow shell in a sliding manner; at least two liquid inlet pipes are arranged between the hollow shell and the installation box body; two concave frames are arranged and are respectively arranged between the two plugs; and the liquid feeding pipe is arranged on the hollow shell and is provided with a one-way valve.
More preferably, the isolation device further comprises an isolation assembly, wherein the isolation assembly comprises: the baffle, baffle are two, all install on sliding cover, and the baffle all cooperates with the slide rail, and the baffle all cooperates with the slider, has all opened the semicircular hole on the baffle.
More preferably, the device further comprises a pop-up assembly, wherein the pop-up assembly comprises: the telescopic rod is arranged on the hollow shell and connected with the sliding block; the first spring is installed between the fixed end and the telescopic end of the telescopic rod and is in a compression state.
More preferably, the device further comprises a stable installation component, wherein the stable installation component comprises: the mounting plate is provided with at least two sliding grooves, and at least two blocks are arranged in the sliding grooves in a sliding manner; and at least two second springs are arranged and are arranged between the clamping block and the sliding groove, and the second springs are in a compression state.
More preferably, the device further comprises a clamping component, wherein the clamping component comprises: two guide plates are arranged and are mounted on the mounting box body; at least two guide rods are arranged and are arranged on the guide plate in a sliding manner; the two concave clamping plates are arranged between the two guide rods and are matched with the sliding cover plate; and at least two third springs are arranged and are arranged between the guide rod and the guide plate.
More preferably, the portable electronic device further comprises an easy-to-open assembly, wherein the easy-to-open assembly comprises: the two first ejector rods are arranged on the sliding cover plate; two second ejector rods are arranged and are arranged on the concave clamping plate; two swing rods are rotatably mounted on the mounting box body and matched with the first ejector rod and the second ejector rod; and two torsion springs are arranged and are both arranged between the oscillating bar and the mounting box body.
More preferably, the method further comprises the following steps: the breather pipe, the breather pipe is two at least, all installs on the installation box.
The invention has the following advantages: the fixing and sound insulation component can insulate sound, the isolation component can further insulate sound, the mounting plate can be automatically upwards bounced through the bouncing component, the mounting plate can be fixed through the stable mounting component, people can conveniently mount construction tools, the clamping component can clamp the sliding cover plate when in use, the sliding cover plate is prevented from being opened, people can conveniently open the sliding cover plate through the convenient opening component, and hot air in the mounting box can be discharged through the vent pipe.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is a perspective view of the fixing and noise insulation assembly of the present invention.
Fig. 5 is a schematic perspective view of the isolation assembly of the present invention.
Fig. 6 is a perspective view of the pop-up assembly of the present invention.
Fig. 7 is a perspective view of the stabilizing mounting assembly of the present invention.
Fig. 8 is a schematic perspective view of the locking assembly of the present invention.
Fig. 9 is an enlarged perspective view of part a of the present invention.
The parts are labeled as follows: 1. the installation box body, 2, the sliding cover plate, 3, the slide rail, 4, the installation plate, 5, the slider, 6, fixed and sound insulation components, 61, the hollow shell, 62, the plug, 63, the piston rod, 64, the liquid inlet pipe, 65, the concave frame, 66, the liquid feeding pipe, 7, the isolation component, 71, the partition plate, 72, the semicircular hole, 8, the bounce component, 81, the telescopic rod, 82, the first spring, 9, the stable installation component, 91, the chute, 92, the second spring, 93, the fixture block, 10, the clamping component, 101, the guide plate, 102, the guide rod, 103, the concave clamping plate, 104, the third spring, 11, the component convenient to open, 111, the first ejector rod, 112, the second ejector rod, 113, the swing rod, 114, the torsion spring, 12, the vent pipe.
Detailed Description
The invention is further illustrated by the following specific examples in which, unless otherwise explicitly stated and limited, terms such as: the arrangement, installation, connection are to be understood broadly, for example, they may be fixed, detachable, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The utility model provides a building tool noise control equipment for building site construction, as shown in fig. 1-9, including installation box 1, sliding cover 2, slide rail 3, mounting panel 4, slider 5 and fixed and subassembly 6 that gives sound insulation, the equal slidingtype of the left and right sides in installation box 1 top is equipped with sliding cover 2, the installation box front portion is equipped with slide rail 3, the slidingtype is equipped with mounting panel 4 on slide rail 3, 3 internal sliding type of slide rail is equipped with slider 5, slider 5 is connected with mounting panel 4, be equipped with fixed and subassembly 6 that gives sound insulation on the installation box 1.
When using the device, the staff promotes earlier that slide cover 2 slides on installation box 1 back to the back and opens, afterwards, staff stimulates slider 5 upwards to slide in slide rail 3 to drive mounting panel 4 upwards and slide, after mounting panel 4 upwards slides to suitable position, the staff passes through instrument fixed sliding block 5, afterwards, the staff installs construction tool and operates on mounting panel 4, in the operation, fixed and noise insulation subassembly 6 can the noise reduction.
As shown in fig. 1, 2, 4 and 6, the fixing and sound insulation assembly 6 comprises a hollow shell 61, plugs 62, piston rods 63, a liquid inlet pipe 64, a concave frame 65 and a liquid feeding pipe 66, the hollow shell 61 is arranged at the lower part of the installation box 1, the plugs 62 are symmetrically arranged on the front side and the rear side of the hollow shell 61 in a left-right mode, the piston rods 63 are arranged between the four plugs 62, the piston rods 63 are connected with the hollow shell 61 in a sliding mode, a circle of liquid inlet pipe 64 is connected between the hollow shell 61 and the installation box 1, the concave frame 65 is connected between the left plug 62 and the right plug 62, and the liquid feeding pipe 66 with a one-way valve is arranged at the front part of the right side of the hollow shell 61.
When using the device, the staff is external water pipe to the liquid feeding pipe 66 on, in the water entering hollow shell 61 in the liquid feeding pipe 66, the staff promoted concave frame 65 lapse, concave frame 65 lapse drives plug 62 and slides downwards and inserts ground, and plug 62 drives piston rod 63 lapse when gliding downwards to in passing through liquid feeding pipe 64 with the water in the hollow shell 61 pushes into installation box 1, so, can give sound insulation.
Example 2
On the basis of embodiment 1, as shown in fig. 1, fig. 2 and fig. 5, the sliding door further comprises an isolation assembly 7, wherein the isolation assembly 7 comprises a partition plate 71, the partition plates 71 are arranged on the front sides of the sliding cover plates 2, the partition plates 71 are matched with the sliding rails 3, the partition plates 71 are matched with the sliding blocks 5, and the partition plates 71 are provided with semicircular holes 72.
When using the device, sliding cover 2 slides dorsad and drives baffle 71 and remove dorsad no longer to block slider 5, and after the construction tool installed, the staff promoted slider 5 lapse, and then drives mounting panel 4 lapse, and afterwards, the staff promoted sliding cover 2 and closed, and sliding cover 2 closes and drives baffle 71 and remove in opposite directions and block slide rail 3, and construction tool's electric wire can wear out through semi-circular hole 72, so, can further give sound insulation.
On the basis of embodiment 1, as shown in fig. 1, 2 and 6, the portable electronic device further comprises a pop-up assembly 8, the pop-up assembly 8 comprises a telescopic rod 81 and a first spring 82, the telescopic rod 81 is arranged at the front part of the hollow shell 61, the telescopic rod 81 is connected with the sliding block 5, the first spring 82 is wound between the fixed end and the telescopic end of the telescopic rod 81, and the first spring 82 is in a compressed state.
When the device is used, when the partition plate 71 moves back to the back and does not block the sliding block 5 any more, under the reset action of the first spring 82, the telescopic rod 81 extends along with the sliding block 5 to drive the sliding block 5 to slide upwards, and the mounting plate 4 slides upwards along with the sliding block, so that the mounting plate 4 can be automatically bounced upwards, and the device is more convenient for people to use.
On the basis of embodiment 1, as shown in fig. 2 and 7, the installation device further includes a stable installation assembly 9, the stable installation assembly 9 includes a second spring 92 and a latch 93, sliding grooves 91 are symmetrically formed in the left and right portions of the installation plate 4, the latch 93 is slidably disposed in the sliding grooves 91, the second spring 92 is connected between the latch 93 and the sliding grooves 91, and the second spring 92 is in a compressed state.
When using the device, mounting panel 4 upwards slides and drives fixture block 93 rebound, when fixture block 93 rebound to with the cooperation of installation box 1, under the effect that second spring 92 resets, fixture block 93 slides outwards in spout 91 thereupon and blocks the edge of installation box 1, so, can fixed mounting panel 4, more make things convenient for people to install building tool.
On the basis of embodiment 1, as shown in fig. 1, fig. 2, fig. 8 and fig. 9, the portable electronic device further comprises a clamping component 10, wherein the clamping component 10 comprises a guide plate 101, a guide rod 102, a concave clamping plate 103 and a third spring 104, the guide plate 101 is arranged on each of the left side and the right side of the upper portion of the mounting box body 1, the guide rod 102 is arranged on each of the front portion and the rear portion of the guide plate 101 in a sliding manner, the concave clamping plate 103 is connected between the tops of the front guide rod 102 and the rear guide rod 102, the concave clamping plate 103 is matched with the sliding cover plate 2, and the third spring 104 is wound between the guide rod 102 and the guide plate 101.
When using the device, the staff pulls guide arm 102 to slide downwards on deflector 101, third spring 104 is compressed, guide arm 102 slides downwards and drives concave cardboard 103 and move downwards no longer block sliding cover 2, subsequently, the staff opens sliding cover 2, use the completion back, close sliding cover 2, at this moment, the staff loosens guide arm 102, under the effect that third spring 104 resets, guide arm 102 drives concave cardboard 103 and moves upwards thereupon and resets and block sliding cover 2, so, can block sliding cover 2 when using, avoid sliding cover 2 to open.
On the basis of embodiment 1, as shown in fig. 1, 2 and 9, the portable electronic device further comprises a portable opening assembly 11, the portable opening assembly 11 comprises a first top rod 111, a second top rod 112, a swing rod 113 and a torsion spring 114, the first top rod 111 is arranged on the front side of the sliding cover plate 2, the second top rod 112 is arranged on the front side of the concave clamping plate 103, the swing rod 113 is rotatably arranged on the left and right sides of the front side of the upper portion of the installation box body 1, the swing rod 113 is matched with the first top rod 111 and the second top rod 112, and the torsion spring 114 is wound between the swing rod 113 and the installation box body 1.
When the device is used, the concave clamping plate 103 moves downwards to drive the second ejector rod 112 to move downwards, the second ejector rod 112 moves downwards to push the lower part of the swing rod 113 to rotate oppositely, the upper part of the swing rod 113 rotates reversely to push the first ejector rod 111 to move reversely, the torsion spring 114 is compressed, the first ejector rod 111 moves reversely to drive the sliding cover plate 2 to slide and open reversely, after the use is completed, a worker closes the sliding cover plate 2, and the swing rod 113 rotates along with the rotation and resets under the reset effect of the torsion spring 114, so that people can open the sliding cover plate 2 more conveniently.
On the basis of the embodiment 1, as shown in fig. 1 and fig. 2, the air pipe device further comprises an air pipe 12, and a circle of air pipe 12 is arranged at the bottom of the installation box body 1.
When the device is used, the vent pipe 12 can discharge hot air in the installation case 1.
While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.
Claims (8)
1. The utility model provides a building tool noise control equipment for building site construction, characterized by, including: installing a box body (1); two sliding cover plates (2) are arranged, and are arranged on the mounting box body (1) in a sliding manner; the sliding rail (3) is arranged on the mounting box body (1); the mounting plate (4) is slidably mounted on the slide rail (3); the sliding block (5) is arranged on the sliding rail (3) in a sliding manner, and the sliding block (5) is connected with the mounting plate (4); and the fixing and sound insulation assembly (6) is arranged on the mounting box body (1).
2. A construction site construction use construction tool noise prevention apparatus according to claim 1, wherein the fixing and sound insulation member (6) comprises: a hollow housing (61) mounted on the mounting case (1); at least two plugs (62), wherein the plugs (62) are arranged on the hollow shell (61) in a sliding manner; the piston rod (63) is arranged between the plugs (62), and the piston rod (63) is connected with the hollow shell (61) in a sliding manner; at least two liquid inlet pipes (64) are arranged between the hollow shell (61) and the installation box body (1); two concave frames (65), wherein the two concave frames (65) are respectively arranged between the two plugs (62); and the liquid feeding pipe (66) is arranged on the hollow shell (61), and the liquid feeding pipe (66) is provided with a one-way valve.
3. A construction site construction use construction tool noise prevention apparatus according to claim 2, further comprising an insulation block (7), the insulation block (7) comprising: baffle (71), baffle (71) are two, all install on sliding cover board (2), and baffle (71) all cooperate with slide rail (3), and baffle (71) all cooperate with slider (5), all opens semicircular hole (72) on baffle (71).
4. A construction site construction use construction tool noise prevention apparatus according to claim 3, further comprising a pop-up block (8), the pop-up block (8) comprising: the telescopic rod (81) is arranged on the hollow shell (61), and the telescopic rod (81) is connected with the sliding block (5); the first spring (82) is installed between the fixed end and the telescopic end of the telescopic rod (81), and the first spring (82) is in a compressed state.
5. A construction tool noise prevention apparatus for construction at a construction site as set forth in claim 4, further comprising a stable mounting assembly (9), the stable mounting assembly (9) comprising: the mounting plate (4) is provided with at least two sliding grooves (91), and at least two blocks (93) are arranged in the sliding grooves (91) in a sliding manner; the number of the second springs (92) is at least two, the second springs (92) are installed between the clamping block (93) and the sliding groove (91), and the second springs (92) are in a compressed state.
6. The noise-proof device for construction tools used in construction sites as claimed in claim 5, further comprising a clamping assembly (10), wherein the clamping assembly (10) comprises: two guide plates (101) are arranged, and are mounted on the mounting box body (1); at least two guide rods (102) are arranged, and the guide rods (102) are arranged on the guide plate (101) in a sliding manner; two concave clamping plates (103) are arranged between the two guide rods (102), and the concave clamping plates (103) are matched with the sliding cover plate (2); and at least two third springs (104) are arranged between the guide rod (102) and the guide plate (101).
7. A construction site construction use construction tool noise prevention apparatus according to claim 6, further comprising an easy-open module (11), the easy-open module (11) comprising: two first ejector rods (111) are arranged on the sliding cover plate (2); two second top rods (112), wherein the two second top rods (112) are arranged on the concave clamping plate (103); two swing rods (113), wherein the two swing rods (113) are rotatably mounted on the mounting box body (1), and the swing rods (113) are matched with the first ejector rod (111) and the second ejector rod (112); two torsion springs (114) are arranged, and are respectively arranged between the swing rod (113) and the installation box body (1).
8. The noise preventing apparatus for construction tools for construction sites according to claim 7, further comprising: the number of the vent pipes (12) is at least two, and the vent pipes (12) are all arranged on the installation box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844959.3A CN113496691B (en) | 2021-07-26 | 2021-07-26 | Building tool noise control equipment for building site construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844959.3A CN113496691B (en) | 2021-07-26 | 2021-07-26 | Building tool noise control equipment for building site construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113496691A true CN113496691A (en) | 2021-10-12 |
| CN113496691B CN113496691B (en) | 2023-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110844959.3A Active CN113496691B (en) | 2021-07-26 | 2021-07-26 | Building tool noise control equipment for building site construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113496691B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382320A (en) * | 2022-03-24 | 2022-04-22 | 山东省高速养护集团有限公司 | Highway noise reduction construction device and construction method |
| CN115234085A (en) * | 2022-07-25 | 2022-10-25 | 贺兆磊 | Portable building construction noise insulation |
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| US20080123276A1 (en) * | 2006-11-27 | 2008-05-29 | Asustek Computer Inc. | Sliding cover faceplate and electronic device using the same |
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| CN208072715U (en) * | 2018-02-02 | 2018-11-09 | 广东迈诺工业技术有限公司 | A kind of energy-saving and environment-friendly double-deck gardens sound insulation curtain wall |
| CN211845580U (en) * | 2020-02-26 | 2020-11-03 | 马燕萍 | Lifting type shoe box |
| CN112259064A (en) * | 2020-10-22 | 2021-01-22 | 重庆新大顺电器有限公司 | Device of making an uproar falls in prepackage type transformer substation |
| CN212448592U (en) * | 2020-06-04 | 2021-02-02 | 南京果食盒子信息科技有限公司 | Food detection is with storing cabinet |
| CN212501832U (en) * | 2020-05-29 | 2021-02-09 | 云和唯乐玩具有限公司 | Toy containing box |
| CN213535683U (en) * | 2020-11-09 | 2021-06-25 | 南昌大学设计研究院 | BIM (building information modeling) building model for building engineering design |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09110061A (en) * | 1995-10-13 | 1997-04-28 | Gifu Plast Ind Co Ltd | Carriage container |
| DE29604571U1 (en) * | 1996-03-12 | 1997-01-02 | Stölzle, Lothar, 88339 Bad Waldsee | Tool and material transport box |
| US20080123276A1 (en) * | 2006-11-27 | 2008-05-29 | Asustek Computer Inc. | Sliding cover faceplate and electronic device using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382320A (en) * | 2022-03-24 | 2022-04-22 | 山东省高速养护集团有限公司 | Highway noise reduction construction device and construction method |
| CN115234085A (en) * | 2022-07-25 | 2022-10-25 | 贺兆磊 | Portable building construction noise insulation |
| CN115234085B (en) * | 2022-07-25 | 2024-05-14 | 科仕摩建设工程(上海)有限公司 | Portable construction sound insulation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113496691B (en) | 2023-12-08 |
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