CN111207057B - Silencing device for air compressor - Google Patents
Silencing device for air compressor Download PDFInfo
- Publication number
- CN111207057B CN111207057B CN202010056998.2A CN202010056998A CN111207057B CN 111207057 B CN111207057 B CN 111207057B CN 202010056998 A CN202010056998 A CN 202010056998A CN 111207057 B CN111207057 B CN 111207057B
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- fixedly connected
- cover
- pull rod
- block
- rotating plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0033—Pulsation and noise damping means with encapsulations
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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
- E05C1/00—Fastening devices with bolts moving rectilinearly
- E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
- E05C1/10—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member rigid with the latch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to the technical field of air compressors and discloses a silencing device for an air compressor. This silencing device for air compressor machine, through setting up first cover piece, the second cover piece, spacing pull rod, first commentaries on classics board, the second changes the board, the epistasis spring, next spring etc, through promote spacing pull rod left, epistasis spring and next spring are compressed, the rectangular block of spacing pull rod left end shifts out from fixture block left side recess, rotate spacing pull rod, rotate ninety degrees, the position of the rectangular block of spacing pull rod left end is corresponding with the position of vertically running through the groove on the fixture block, loosen spacing pull rod, spacing pull rod resets, can pull open left compartment cover and right compartment cover respectively, overhaul the maintenance to the motor of inside, it is too loaded down with trivial details to have solved the operation of current installation sound insulating board, be not convenient for the later stage to overhaul the problem of maintaining to the air compressor machine motor.
Description
Technical Field
The invention relates to the technical field of air compressors, in particular to a silencing device for an air compressor.
Background
The measure that air compressor machine noise control often adopted on the transmission route is sound insulation amortization, wherein with the amortization to mechanical noise the most effective, because the noise of air compressor machine mainly comes from the mechanical noise that produces when inside motor operation, consequently, adopt in the trade to carry out sound insulation amortization operation to the outside fixed mounting of motor or parcel baffle, but, current installation baffle operation is too loaded down with trivial details, and is not convenient for the later stage to the maintenance and repair of air compressor machine motor, has brought the difficulty for maintenance personal's operation.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the silencing device for the air compressor, which has the advantages of convenience in disassembly and convenience in motor maintenance, and solves the problems that the operation of installing the sound insulation plate is too complicated at present, and the maintenance of the motor of the air compressor is inconvenient in later period.
(II) technical scheme
In order to realize the purposes of convenient disassembly and convenient motor maintenance, the invention provides the following technical scheme: a silencing device for an air compressor comprises a left support, a left separation cover, a right separation cover and a right support, wherein the right side of the left support is fixedly connected with a first cross rod, and the bottom of the left bracket is provided with a screw, a threaded hole at the right end of the first cross rod is connected with a first limit block in a threaded manner, the surface of the first cross bar is movably connected with a first guide block, the back surface of the first guide block is fixedly connected with the front surface of the left separation cover, the left side of the left separation cover is communicated with an air inlet pipe, the left side of the left separation cover is fixedly connected with a communicating pipe, the left side of the right bracket is fixedly connected with a second cross rod, and the bottom of the right bracket is provided with a screw, a threaded hole at the left end of the second cross rod is connected with a second limiting block in a threaded manner, the surface swing joint of second horizontal pole has the second guide block, the back and the right side of second guide block separate the positive fixed connection of cover, the right side intercommunication that the cover was separated on the right side has the air-out cooling tube.
The right partition cover is characterized in that a first sleeve block is fixedly connected to the front of the right partition cover, a first rotating plate is movably connected to the inner wall of the left side of the first sleeve block, a second rotating plate is movably connected to the inner wall of the right side of the first sleeve block, a limiting pull rod is movably connected to the inner portion of the second rotating plate, a rectangular block is arranged at the left end of the limiting pull rod, a baffle is fixedly connected to the surface of the limiting pull rod, a first guide rod is movably connected to the top of the baffle, the left end of the first guide rod is fixedly connected to the right side of the first rotating plate, the right end of the first guide rod is fixedly connected to the left side of the second rotating plate, an upper spring is fixedly connected to the left side of the baffle, one end, away from the baffle, of the upper spring is fixedly connected to the right side of the first rotating plate, the upper spring is sleeved on the surface of the first guide rod and is movably connected to the first guide rod, and a second guide rod is movably connected to the bottom of the baffle, the left end of the second guide rod is fixedly connected with the right side of the first rotating plate, the right end of the second guide rod is fixedly connected with the left side of the second rotating plate, the left side of the baffle is fixedly connected with a lower spring, one end of the lower spring, far away from the baffle, is fixedly connected with the right side of the first rotating plate, the lower spring is sleeved on the surface of the second guide rod and is movably connected with the second guide rod, the surface of the limiting pull rod is movably connected with the first rotating plate and is movably connected with the left side wall and the right side wall of the first sleeve block respectively, the front side of the left separation cover is fixedly connected with a second sleeve block, the right side inner wall of the second sleeve block is fixedly connected with a clamping block, the surface of the limiting pull rod is movably connected with a through hole in the clamping block, the limiting pull rod is movably connected with the right side wall of the second sleeve block, the inner wall of the left separation cover is fixedly connected with first soundproof cotton, and the left side wall fixedly connected with heat dissipation fan that separates the cover on a left side, the position of heat dissipation fan is corresponding with the position of air-supply line, the top fixedly connected with first in command that separates the cover on a left side, the inner wall fixedly connected with second soundproof cotton that separates the cover on the right side, and the top fixedly connected with second in command that separates the cover on the right side.
Preferably, a sound insulation grid is arranged at the left end of the air inlet pipe.
Preferably, the left side of air-out cooling tube is two mouths of pipe, and the bottom of air-out cooling tube is the air outlet.
Preferably, the bottom of the right support, the bottom of the left support and the bottom of the right support are located on the same horizontal plane.
Preferably, the left side of the clamping block is provided with a transverse groove and a longitudinal through groove, the transverse groove and the longitudinal through groove are the same in size and are perpendicular to each other, the middle points of the transverse groove and the longitudinal through groove are superposed, the middle points of the transverse groove and the longitudinal through groove are used as circle centers to be provided with a through hole, and the size of the groove on the left side of the clamping block is matched with that of the rectangular block at the left end of the limiting pull rod.
Compared with the prior art, the invention provides a silencing device for an air compressor, which has the following beneficial effects:
1. the silencer for the air compressor is characterized in that a first sleeve block, a second sleeve block, a limiting pull rod, a first rotating plate, a second rotating plate, an upper spring, a lower spring and the like are arranged, the limiting pull rod is pushed leftwards, a baffle moves along with the limiting pull rod and compresses the upper spring and the lower spring, a rectangular block at the left end of the limiting pull rod is moved out of a groove at the left side of a fixture block, the limiting pull rod is rotated, the first rotating plate and the second rotating plate drive the limiting pull rod to rotate ninety degrees, the position of the rectangular block at the left end of the limiting pull rod corresponds to the position of a longitudinal through groove on the fixture block, the limiting pull rod is loosened, the upper spring and the lower spring rebound and reset, the limiting pull rod resets, the rectangular block at the left end of the limiting pull rod moves into the fixture block, the limiting function is not provided, a left partition cover and a right partition cover can be respectively pulled open, an internal motor can be overhauled and maintained, and the problem that the operation of the currently installed sound partition plate is excessively tedious is solved, the problem of maintenance is overhauld to the air compressor motor in the later stage not convenient for.
2. This silencing device for air compressor through setting up air-supply line and air-out cooling tube, and the air-supply line left end is equipped with syllable-dividing grid, and the air outlet setting of air-out cooling tube is in the position that is close to ground, reduces the trompil to the destruction of sound insulation, and air-supply line and air-out cooling tube make the work efficiency maximize of inside heat dissipation fan, and have kept the balance of sound insulation and thermal diffusivity.
Drawings
FIG. 1 is a cross-sectional view of a front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged view of a portion of A of FIG. 1;
FIG. 4 is a cross-sectional view of the left and right shield structures of the present invention;
fig. 5 is a three-dimensional diagram of the fixture block structure of the present invention.
Wherein: 1. a left bracket; 2. a left separation cover; 3. a right spacer shroud; 4. a right bracket; 5. a first cross bar; 6. a first stopper; 7. a first guide block; 8. an air inlet pipe; 9. an air outlet radiating pipe; 10. a second cross bar; 11. a second limiting block; 12. a second guide block; 13. a communicating pipe; 14. a second nest block; 15. a clamping block; 16. a first nest block; 17. a limiting pull rod; 18. a first rotating plate; 19. a second rotating plate; 20. a first guide bar; 21. a baffle plate; 22. an upper spring; 23. a second guide bar; 24. a lower spring; 25. a heat dissipation fan; 26. a first soundproof cotton; 27. a second soundproof cotton; 28. a first handle; 29. a second handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the invention provides a silencer for an air compressor, which comprises a left support 1, a left separation cover 2, a right separation cover 3 and a right support 4, wherein the right support 4, the right separation cover 3, the left separation cover 2 and the left support 1 are positioned on the same horizontal plane, the sound insulation performance of the left separation cover 2 and the right separation cover 3 is enhanced, the right side of the left support 1 is fixedly connected with a first cross rod 5, the bottom of the left support 1 is provided with a screw, the left support 1 is detachable, a threaded hole at the right end of the first cross rod 5 is in threaded connection with a first limiting block 6, the first limiting block 6 can be screwed down, the left separation cover 2 is taken down from the first cross rod 5, the surface of the first cross rod 5 is movably connected with a first guide block 7, the back of the first guide block 7 is fixedly connected with the front of the left separation cover 2, the left side of the left separation cover 2 is communicated with an air inlet pipe 8, the left end of the air inlet pipe 8 is provided with a sound insulation grid, the sound-proof grille reduces the loss of sound-proof property caused by the opening to the lowest, the left side of the left separation cover 2 is fixedly connected with a communicating pipe 13, the communicating pipe 13 enables the output end of the air compressor motor to be connected with an external mechanism, the left side of the right bracket 4 is fixedly connected with a second cross rod 10, the bottom of the right bracket 4 is provided with a screw, the right bracket 4 can be disassembled, the threaded hole at the left end of the second cross rod 10 is connected with a second limit block 11 in a threaded manner, the second limiting block 11 can be screwed to be taken down, the left separation cover 2 is taken down from the second cross rod 10, the surface of the second cross rod 10 is movably connected with a second guide block 12, the back surface of the second guide block 12 is fixedly connected with the front surface of the right separation cover 3, the right side of the right separation cover 3 is communicated with an air outlet heat radiation pipe 9, the left side of the air outlet heat radiation pipe 9 is provided with two pipe orifices, and the bottom of the air-out radiating pipe 9 is an air outlet which is close to the ground, so that the damage of the opening to the sound insulation is reduced.
The front of the right separation cover 3 is fixedly connected with a first sleeve block 16, the left inner wall of the first sleeve block 16 is movably connected with a first rotating plate 18, the right inner wall of the first sleeve block 16 is movably connected with a second rotating plate 19, the inside of the second rotating plate 19 is movably connected with a limiting pull rod 17, the left end of the limiting pull rod 17 is provided with a rectangular block, the surface of the limiting pull rod 17 is fixedly connected with a baffle 21, the top of the baffle 21 is movably connected with a first guide rod 20, the left end of the first guide rod 20 is fixedly connected with the right side of the first rotating plate 18, the right end of the first guide rod 20 is fixedly connected with the left side of the second rotating plate 19, the left side of the baffle 21 is fixedly connected with an upper spring 22, one end of the upper spring 22, which is far away from the baffle 21, is fixedly connected with the right side of the first rotating plate 18, the upper spring 22 is sleeved on the surface of the first guide rod 20 and is movably connected with the first guide rod 20, the bottom of the baffle 21 is movably connected with a second guide rod 23, the left end of a second guide rod 23 is fixedly connected with the right side of a first rotating plate 18, the right end of the second guide rod 23 is fixedly connected with the left side of a second rotating plate 19, the left side of a baffle plate 21 is fixedly connected with a lower spring 24, one end of the lower spring 24, which is far away from the baffle plate 21, is fixedly connected with the right side of the first rotating plate 18, the lower spring 24 is sleeved on the surface of the second guide rod 23 and is movably connected with the second guide rod 23, the surface of a limiting pull rod 17 is movably connected with the first rotating plate 18, the surface of the limiting pull rod 17 is respectively movably connected with the left side wall and the right side wall of a first sleeve block 16, a second sleeve block 14 is fixedly connected with the front surface of the left partition cover 2, a fixture block 15 is fixedly connected with the right side inner wall of the second sleeve block 14, the left side of the fixture block 15 is provided with a transverse groove and a longitudinal through groove which are identical in size and are perpendicular to each other, the midpoints of the two coincide, and a through hole is formed by taking the midpoints of the two as the circle centers, the size of the left groove of the clamping block 15 is matched with the size of the left rectangular block of the limiting pull rod 17, the surface of the limiting pull rod 17 is movably connected with a through hole in the clamping block 15, the limiting pull rod 17 is movably connected with the right side wall of the second sleeve block 14, the inner wall of the left separation cover 2 is fixedly connected with first soundproof cotton 26, the left side wall of the left separation cover 2 is fixedly connected with a heat dissipation fan 25, the position of the heat dissipation fan 25 corresponds to the position of the air inlet pipe 8, the top of the left separation cover 2 is fixedly connected with a first handle 28, the inner wall of the right separation cover 3 is fixedly connected with a second soundproof cotton 27, and the top of the right separation cover 3 is fixedly connected with a second handle 29.
When the limiting pull rod device is used, a maintenance worker can push the limiting pull rod 17 leftwards, the baffle plate 21 moves along with the limiting pull rod 17 and compresses the upper spring 22 and the lower spring 24, the rectangular block at the left end of the limiting pull rod 17 positioned in the groove in the inner part of the fixture block 15 is moved out of the groove in the left side of the fixture block 15, the limiting pull rod 17 is rotated, the first rotating plate 18 and the second rotating plate 19 drive the limiting pull rod 17 to rotate ninety degrees, the position of the rectangular block at the left end of the limiting pull rod 17 corresponds to the position of the longitudinal through groove in the fixture block 15, the limiting pull rod 17 is loosened, the upper spring 22 and the lower spring 24 rebound and reset, the limiting pull rod 17 resets, the rectangular block at the left end of the limiting pull rod 17 moves to the inner part of the fixture block 15, the limiting function is not achieved, the left partition cover 2 and the right partition cover 3 can be respectively pulled open, and the motor inside can be overhauled and maintained.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a silencing device for air compressor, includes left socle (1), a left side and separates cover (2), the right side and separates cover (3) and right branch frame (4), its characterized in that: the right side of the left support (1) is fixedly connected with a first cross rod (5), the bottom of the left support (1) is provided with a screw, a threaded hole at the right end of the first cross rod (5) is connected with a first limiting block (6) in a threaded manner, the surface of the first cross rod (5) is movably connected with a first guide block (7), the back surface of the first guide block (7) is fixedly connected with the front surface of the left separation cover (2), the left side of the left separation cover (2) is communicated with an air inlet pipe (8), the left side of the left separation cover (2) is fixedly connected with a communicating pipe (13), the left side of the right support (4) is fixedly connected with a second cross rod (10), the bottom of the right support (4) is provided with a screw, the threaded hole at the left end of the second cross rod (10) is connected with a second limiting block (11) in a threaded manner, and the surface of the second cross rod (10) is movably connected with a second guide block (12), the back surface of the second guide block (12) is fixedly connected with the front surface of the right separation cover (3), and the right side of the right separation cover (3) is communicated with an air outlet radiating pipe (9);
the right partition cover (3) is fixedly connected with a first sleeve block (16) in the front, a first rotating plate (18) is movably connected with the inner wall of the left side of the first sleeve block (16), a second rotating plate (19) is movably connected with the inner wall of the right side of the first sleeve block (16), a limiting pull rod (17) is movably connected with the inner part of the second rotating plate (19), a rectangular block is arranged at the left end of the limiting pull rod (17), a baffle (21) is fixedly connected with the surface of the limiting pull rod (17), a first guide rod (20) is movably connected with the top of the baffle (21), the left end of the first guide rod (20) is fixedly connected with the right side of the first rotating plate (18), the right end of the first guide rod (20) is fixedly connected with the left side of the second rotating plate (19), an upper spring (22) is fixedly connected with the left side of the baffle (21), and one end of the upper spring (22) far away from the baffle (21) is fixedly connected with the right side of the first rotating plate (18), the upper spring (22) is sleeved on the surface of the first guide rod (20) and movably connected with the first guide rod (20), the bottom of the baffle plate (21) is movably connected with a second guide rod (23), the left end of the second guide rod (23) is fixedly connected with the right side of the first rotating plate (18), the right end of the second guide rod (23) is fixedly connected with the left side of the second rotating plate (19), the left side of the baffle plate (21) is fixedly connected with a lower spring (24), one end, far away from the baffle plate (21), of the lower spring (24) is fixedly connected with the right side of the first rotating plate (18), the lower spring (24) is sleeved on the surface of the second guide rod (23) and movably connected with the second guide rod (23), the surface of the limiting pull rod (17) is movably connected with the first rotating plate (18), and the surface of the limiting pull rod (17) is respectively movably connected with the left side wall and the right side wall of the first sleeve block (16), the utility model discloses a wind turbine generator cover, including left side separation cover (2), the front fixedly connected with second cover piece (14) of second cover piece (2), the right side inner wall fixedly connected with fixture block (15) of second cover piece (14), the surface of spacing pull rod (17) and the inside through hole swing joint of fixture block (15), and the right side wall swing joint of spacing pull rod (17) and second cover piece (14), the left side separates the first soundproof cotton (26) of the inner wall fixedly connected with of cover (2), and the left side separates the left side wall fixedly connected with heat dissipation fan (25) of cover (2), the position of heat dissipation fan (25) is corresponding with the position of air-supply line (8), the left side separates the first in command (28) of top fixedly connected with of cover (2), the right side separates the inner wall fixedly connected with second soundproof cotton (27) of cover (3), and the right side separates the top fixedly connected with second in command (29) of cover (3).
2. The silencing device for an air compressor according to claim 1, wherein: and a sound insulation grid is arranged at the left end of the air inlet pipe (8).
3. The silencing device for an air compressor according to claim 1, wherein: the left side of air-out cooling tube (9) is two mouths of pipe, and the bottom of air-out cooling tube (9) is the air outlet.
4. The silencing device for an air compressor according to claim 1, wherein: the right support (4), the right separation cover (3), the left separation cover (2) and the left support (1) are arranged on the same horizontal plane.
5. The silencing device for an air compressor according to claim 1, wherein: the left side of the clamping block (15) is provided with a transverse groove and a longitudinal through groove, the transverse groove and the longitudinal through groove are identical in size and perpendicular to each other, the middle points of the transverse groove and the longitudinal through groove are superposed, the middle points of the transverse groove and the longitudinal through groove are used as circle centers to be provided with through holes, and the size of the groove in the left side of the clamping block (15) is matched with that of the rectangular block at the left end of the limiting pull rod (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010056998.2A CN111207057B (en) | 2020-01-16 | 2020-01-16 | Silencing device for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010056998.2A CN111207057B (en) | 2020-01-16 | 2020-01-16 | Silencing device for air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111207057A CN111207057A (en) | 2020-05-29 |
| CN111207057B true CN111207057B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010056998.2A Active CN111207057B (en) | 2020-01-16 | 2020-01-16 | Silencing device for air compressor |
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| CN (1) | CN111207057B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647396A (en) * | 2020-12-02 | 2021-04-13 | 许聪 | Portable environment-friendly concrete cutting machine |
| CN112900974A (en) * | 2020-12-31 | 2021-06-04 | 国泰消防科技股份有限公司 | Door leaf bolt anti-shaking adjusting sleeve |
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| CN1119883A (en) * | 1993-03-26 | 1996-04-03 | 施拉奇锁有限公司 | Interchangeable faceplates for door latches permitting adaptation to a variety of standard door preparations |
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| JP2008050752A (en) * | 2006-08-22 | 2008-03-06 | Advantest Corp | Locking device for opening/closing portion of electronic-component testing apparatus |
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| CN208231412U (en) * | 2018-03-15 | 2018-12-14 | 西安威斯特精密设备制造有限公司 | A kind of mechanical equipment outer cover |
| CN209532893U (en) * | 2019-01-24 | 2019-10-25 | 南通福田机床科技有限公司 | A kind of numerical control machining center safty shield |
| CN209621550U (en) * | 2019-02-26 | 2019-11-12 | 黄丽芬 | A kind of noise reducing device for air conditioner compressor |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261466A (en) * | 1991-11-15 | 1993-05-19 | Arthur John Gozzard | A security lock for a closure panel |
| CN1119883A (en) * | 1993-03-26 | 1996-04-03 | 施拉奇锁有限公司 | Interchangeable faceplates for door latches permitting adaptation to a variety of standard door preparations |
| CN2680778Y (en) * | 2004-03-10 | 2005-02-23 | 李宝立 | Multimedia platform |
| JP2008050752A (en) * | 2006-08-22 | 2008-03-06 | Advantest Corp | Locking device for opening/closing portion of electronic-component testing apparatus |
| CN201131183Y (en) * | 2007-12-21 | 2008-10-15 | 张振平 | A movable granary |
| CN208231412U (en) * | 2018-03-15 | 2018-12-14 | 西安威斯特精密设备制造有限公司 | A kind of mechanical equipment outer cover |
| CN209532893U (en) * | 2019-01-24 | 2019-10-25 | 南通福田机床科技有限公司 | A kind of numerical control machining center safty shield |
| CN209621550U (en) * | 2019-02-26 | 2019-11-12 | 黄丽芬 | A kind of noise reducing device for air conditioner compressor |
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| Publication number | Publication date |
|---|---|
| CN111207057A (en) | 2020-05-29 |
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