CN111059024A - Noise reduction device of air compressor - Google Patents
Noise reduction device of air compressor Download PDFInfo
- Publication number
- CN111059024A CN111059024A CN201911339721.4A CN201911339721A CN111059024A CN 111059024 A CN111059024 A CN 111059024A CN 201911339721 A CN201911339721 A CN 201911339721A CN 111059024 A CN111059024 A CN 111059024A
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- China
- Prior art keywords
- noise reduction
- buffering
- air compressor
- plate
- storage
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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
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
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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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/06—Mobile combinations
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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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- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The invention discloses an air compressor noise reduction device which comprises a noise reduction base, wherein an air compressor is installed at the upper end of the noise reduction base, buffering noise reduction structures are uniformly distributed on the left side and the right side of the upper end of the noise reduction base along the front-back direction, first sound absorption cotton is installed on the buffering noise reduction structures, a connecting plate is installed at the upper end of the buffering noise reduction structures, a storage structure is connected between the connecting plates on the two sides in a sliding mode, second sound absorption cotton is installed in the storage structure in a sliding mode, and a hand pulling assembly is installed at. In the invention, the noise can be reduced in a triple way by the common matching of the noise reduction base, the first sound absorption cotton and the second sound absorption cotton of the buffering noise reduction structure, so that the noise pollution generated during the working of the air compressor can be greatly reduced, and the working environment is optimized.
Description
Technical Field
The invention belongs to the field of air compressors, and particularly relates to a noise reduction device of an air compressor.
Background
Need use air compressor to produce the compressed air that purifies in the production process of liquid crystal glazing base plate, when the required compressed air of production is more or comparatively strict often to the compressed air demand, just need dispose many air compressor units, and air compressor can produce great noise when using, and many air compressor units use more can amplify the noise simultaneously, bring serious noise pollution, influence workman operational environment, make workman's physical and mental receive the injury.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a noise reduction device of an air compressor, which can reduce noise triple through the common matching of a noise reduction base and a first sound absorption cotton and a second sound absorption cotton of a buffering noise reduction structure, thereby greatly reducing noise pollution generated during the operation of the air compressor and optimizing the working environment.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
an air compressor noise reduction device comprises a noise reduction base, wherein an air compressor is installed at the upper end of the noise reduction base, buffering noise reduction structures are uniformly distributed on the left side and the right side of the upper end of the noise reduction base along the front-back direction, first sound absorption cotton is installed on the buffering noise reduction structures, a connecting plate is installed at the upper end of the buffering noise reduction structures, a storage structure is connected between the connecting plates on the two sides in a sliding mode, second sound absorption cotton is installed in the storage structure in a sliding mode, and a hand pulling assembly is installed at;
the noise reduction base comprises support bottom plates which are symmetrically distributed left and right, mounting holes are uniformly distributed in the end of each support bottom plate along the front-back direction, a connecting rotating rod is connected between the support bottom plates on the two sides, the outer end of each connecting rotating rod penetrates through the support bottom plates in a sliding mode and is provided with a roller, buffering noise reduction pieces are uniformly distributed at the upper ends of the support bottom plates on the two sides, a bearing panel is connected at the upper end of each buffering noise reduction piece, an air compressor is mounted at the upper end of the bearing panel, vertical through holes are uniformly distributed in the front-back direction in the left and right sides of the bearing panel, each buffering noise reduction piece comprises an upwards arched arc-shaped elastic piece, a first connecting hole vertically penetrates through the top of each arc-shaped elastic piece, connecting columns are uniformly distributed in the front-back direction at the lower end of the bearing panel, the connecting columns;
the buffering and noise-reducing structure comprises a supporting connecting column, a buffering spring is sleeved on the periphery of the supporting connecting column, the upper end of the buffering spring is fixedly connected with the lower end of a bearing plate, the lower end of the buffering spring is fixedly connected with the upper end of a supporting bottom plate, the lower end of the supporting connecting column sequentially penetrates through a vertical through hole, the buffering spring is fixedly connected with an installation hole, the supporting connecting column is in sliding connection with the vertical through hole, a square vertical rod is arranged at the upper end of the supporting connecting column, an L-shaped separation blade is arranged on the outer side of the square vertical rod, a placing groove is formed between;
the lower end of the connecting plate is uniformly provided with connecting grooves, the upper end of the square upright stanchion is in interference fit with the connecting grooves, the inner side of the connecting plate is provided with a connecting chute, the front end of the connecting chute is a closed end, and the rear end of the connecting plate is provided with a magnet;
the storage structure comprises a storage plate, connecting sliding blocks are symmetrically arranged on the left side and the right side of the storage plate and are in sliding connection with connecting sliding grooves, a storage cavity is horizontally formed in the storage plate in a penetrating mode, second sound-absorbing cotton is installed in the storage cavity in a sliding mode, and ventilating grooves which are vertically formed in a penetrating mode are evenly distributed in the storage plate in the front-back direction;
the hand power subassembly includes horizontally distributed's hand lever, and hand lever both sides lower extreme is equipped with the connecting rod perpendicularly, and the connecting rod lower extreme is equipped with first articulated piece, bears the panel rear end and is equipped with the articulated piece that links to each other of second with first articulated piece, and connecting rod front side upper end is equipped with the reference column, and the reference column front end is fixed with magnet matched with.
Furthermore, the ventilation grooves are in a left-right distributed straight-line structure.
Further, when the connecting rod is in a vertical state, the upper end of the hand lever and the upper end of the storage cavity are in the same horizontal plane.
The invention has the beneficial effects that:
1. in the invention, the buffering noise reduction piece in the noise reduction base can play a good role in buffering and damping when the air compressor works, can perform first noise reduction, further plays a role in buffering and damping through the common matching of the buffering spring and the supporting connecting column in the buffering noise reduction structure with the supporting base plate and the bearing panel, can perform second noise reduction, and simultaneously can absorb noise generated by the air compressor through the first sound absorption cotton and the second sound absorption cotton, and can perform third noise reduction, so that noise pollution generated by the air compressor during working can be greatly reduced, and the working environment is optimized;
2. the storage structure is connected with the connecting plate in a sliding mode, the mounting and the dismounting are convenient, the storage structure is taken down before the air compressor is placed at the upper end of the noise reduction base, the placement of the air compressor is convenient, and the operation is convenient when the storage structure is mounted on the connecting plate after the air compressor is placed at the upper end of the noise reduction base;
3. the hand pulling assembly is used for assisting in moving the invention, because the connecting rod is hinged with the connecting rod, the hand pulling rod can be adjusted at will in angle in a moving mode and pulled freely, when the hand pulling rod does not need to move, the connecting rod is kept in a vertical state, and the connecting rod can be fixed on the connecting plate through the matching of the magnet and the magnet, so that the occupied space can be saved;
4. the invention has compact structure and simple and convenient installation and manufacture.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a portion of the present invention;
FIG. 3 is an exploded view of a portion of the structure of the present invention;
FIG. 4 is a fragmentary structural exploded view of the present invention;
FIG. 5 is an exploded view of a portion of the structure of the present invention;
FIG. 6 is an exploded view of a portion of the structure of the present invention;
FIG. 7 is a rear elevation view of a portion of the structure of the present invention;
FIG. 8 is an exploded view of a portion of the structure of the present invention;
FIG. 9 is a schematic view of a portion of the present invention;
fig. 10 is a right side view of a partial structure of the present invention.
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.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
As shown in fig. 1 an air compressor noise reduction device, including making an uproar base 1, air compressor installs and falls 1 upper ends of making an uproar base, it has the buffering to fall and makes an uproar structure 2 to fall about 1 upper end both sides of making an uproar along the equal equipartition of fore-and-aft direction, fall and install first sound cotton 3 of inhaling on making an uproar structure 2, fall and make an uproar structure 2 upper end and install connecting plate 4, sliding connection has storage structure 5 between the connecting plate 4 of both sides, sliding mounting has the second to inhale sound cotton 6 in storage structure 5, it installs hand power subassembly 7 to fall 1.
As shown in fig. 2 and fig. 3, the noise reduction base 1 includes support bottom plates 11 symmetrically distributed left and right, mounting holes 111 are uniformly distributed at the ends of the support bottom plates 11 along the front-back direction, connecting rotating rods 12 are connected between the support bottom plates 11 at both sides, the outer ends of the connecting rotating rods 12 slidably penetrate through the support bottom plates 11 and are provided with rollers 13, buffering noise reduction members 14 are uniformly distributed at the upper ends of the support bottom plates 11 at both sides, a bearing panel 15 is connected at the upper end of the buffering noise reduction members 14, an air compressor is mounted at the upper end of the bearing panel 15, vertical through holes 151 are uniformly distributed at the left and right sides of the bearing panel 15 along the front-back direction, the buffering noise reduction members 14 include upwardly arched arc-shaped elastic pieces 141, first connecting holes 1411 vertically penetrate through the tops of the arc-shaped elastic pieces 141, connecting columns 152 are uniformly distributed at the lower end of the bearing panel, a second connecting hole 1422 vertically penetrates through the connecting sheet 142, and the lower end of the screw passes through the second connecting hole 1422 and is fixedly connected with the support base plate 11.
As shown in fig. 4 and 5, the buffering and noise-reducing structure 2 comprises a supporting connection column 21, a buffer spring 22 is sleeved on the periphery of the supporting connection column 21, the upper end of the buffer spring 22 is fixedly connected with the lower end of the bearing panel 15, the lower end of the buffer spring 22 is fixedly connected with the upper end of the supporting bottom plate 11, the lower end of the supporting connection column 21 sequentially passes through the supporting connection column, a vertical through hole 151 is formed in the buffer spring 22, the buffer spring 22 is fixedly connected with the mounting hole 111, the supporting connection column 21 is slidably connected with the vertical through hole 151, a square vertical rod 23 is arranged on the upper end of the supporting connection column 21, an L-shaped baffle 24 is arranged on the outer side of the square vertical rod 23.
As shown in fig. 6 and 7, the connecting grooves 41 are uniformly distributed at the lower end of the connecting plate 4, the upper end of the square upright 23 is in interference fit with the connecting grooves 41, the connecting chute 42 is formed in the inner side of the connecting plate 4, the front end of the connecting chute 42 is a closed end, and the magnet 43 is mounted at the rear end of the connecting plate 4.
As shown in fig. 8, the storage structure 5 includes a storage plate 51, connection sliding blocks 52 are symmetrically arranged on the left side and the right side of the storage plate 51, the connection sliding blocks 52 are slidably connected with the connection sliding grooves 42, a storage cavity 51 is horizontally penetrated and opened in the storage plate 51, the second sound-absorbing cotton 6 is slidably installed in the storage cavity 51, ventilation grooves 512 vertically penetrating and arranged are uniformly distributed on the storage plate 51 along the front-back direction, and the ventilation grooves 512 are in a straight structure distributed left and right.
As shown in fig. 9 and 10, the hand pulling assembly 7 includes a hand pulling rod 71 horizontally distributed, the lower ends of both sides of the hand pulling rod 71 are vertically provided with a connecting rod 72, the lower end of the connecting rod 72 is provided with a first hinging block 721, the rear end of the bearing panel 15 is provided with a second hinging block 153 connected with the first hinging block 721 in a hinging manner, the upper end of the front side of the connecting rod 72 is provided with a positioning column 73, the front end of the positioning column 73 is fixed with a magnet 74 matched with the magnet 43, when the connecting rod 72 is in a vertical state, the upper end of the hand pulling rod 71 and the upper end of the storage cavity 51 are in the same horizontal plane, at this time, the hand pulling rod 71 can block the storage.
In the invention, the buffering noise reduction piece 14 in the noise reduction base 1 can play a good role in buffering and damping when the air compressor 8 works, so that a first role in reducing noise is played, meanwhile, the roller 13 is arranged on the noise reduction base 1, so that the transition work of the invention is facilitated, the buffering and damping functions are further played through the common matching of the buffering spring 22 and the supporting connecting column 21 in the buffering noise reduction structure 2, the supporting bottom plate 11 and the bearing panel 15, so that the second role in reducing noise is played, meanwhile, the first sound absorption cotton 3 and the second sound absorption cotton 6 can absorb the noise generated by the air compressor 8, so that the third role in reducing noise is played, and through the triple noise reduction, the noise pollution generated when the air compressor works can be greatly reduced, and the working environment is optimized; the storage structure 5 is connected with the connecting plate 4 in a sliding mode, the mounting and dismounting are convenient, the storage structure 5 is taken down before the air compressor 8 is placed at the upper end of the noise reduction base 1, the placement of the air compressor 8 is convenient, and the storage structure 5 is mounted on the connecting plate 4 after the air compressor 8 is placed at the upper end of the noise reduction base 1, so that the operation is convenient; the hand pulling assembly 7 is used for assisting in moving the invention, because the connecting rod 72 is hinged with the connecting rod 72, the hand pulling rod 71 can be adjusted at any angle in a moving mode and pulled freely, when the hand pulling rod does not need to move, the connecting rod 72 is kept in a vertical state, and the connecting rod 72 can be fixed on the connecting plate 4 through the matching of the magnet 74 and the magnet 43, so that the occupied space can be saved; the invention has compact structure and simple and convenient installation and manufacture.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (3)
1. The utility model provides a device of making an uproar falls in air compressor which characterized in that: the noise reduction device comprises a noise reduction base (1), buffering noise reduction structures (2) are uniformly distributed on the left side and the right side of the upper end of the noise reduction base (1) along the front-back direction, first sound absorption cotton (3) is installed on the flushing noise reduction structures (2), connecting plates (4) are installed on the upper ends of the flushing noise reduction structures (2), a storage structure (5) is connected between the connecting plates (4) on the two sides in a sliding mode, second sound absorption cotton (6) is installed in the storage structure (5) in the sliding mode, and a hand pulling assembly (7) is installed at the rear end of the;
the noise reduction base (1) comprises support bottom plates (11) which are symmetrically distributed left and right, mounting holes (111) are uniformly distributed at the ends of the support bottom plates (11) along the front-back direction, connecting rotating rods (12) are connected between the support bottom plates (11) at two sides, the outer ends of the connecting rotating rods (12) slide out of the support bottom plates (11) and are provided with rollers (13), buffering noise reduction pieces (14) are uniformly distributed at the upper ends of the support bottom plates (11) at two sides, bearing panels (15) are connected at the upper ends of the buffering noise reduction pieces (14), air compressors are arranged at the upper ends of the bearing panels (15), vertical through holes (151) are uniformly distributed at the left and right sides of the bearing panels (15) along the front-back direction, each buffering noise reduction piece (14) comprises an upwards arched arc elastic piece (141), a first connecting hole (1411) is vertically arranged at the top of each, the connecting column (152) is in interference fit with the first connecting hole (1411), connecting pieces (142) are symmetrically arranged at the left end and the right end of the arc-shaped elastic piece (141), a second connecting hole (1422) vertically penetrates through the connecting pieces (142), and the lower end of a screw penetrates through the second connecting hole (1422) to be fixedly connected with the supporting bottom plate (11);
the buffering and noise reducing structure (2) comprises a supporting connection column (21), a buffering spring (22) is sleeved on the periphery of the supporting connection column (21), the upper end of the buffering spring (22) is fixedly connected with the lower end of a bearing panel (15), the lower end of the buffering spring (22) is fixedly connected with the upper end of a supporting bottom plate (11), the lower end of the supporting connection column (21) sequentially penetrates through a vertical through hole (151), the buffering spring (22) is fixedly connected with a mounting hole (111), the supporting connection column (21) is in sliding connection with the vertical through hole (151), a square vertical rod (23) is arranged at the upper end of the supporting connection column (21), an L-shaped baffle (24) is arranged on the outer side of the square vertical rod (23), a placement groove (25) is formed between the square vertical rod (23) and the L-shaped baffle (24), and;
the lower end of the connecting plate (4) is uniformly provided with connecting grooves (41), the upper end of the square upright rod (23) is in interference fit with the connecting grooves (41), the inner side of the connecting plate (4) is provided with a connecting chute (42), the front end of the connecting chute (42) is a closed end, and the rear end of the connecting plate (4) is provided with a magnet (43);
the storage structure (5) comprises a storage plate (51), connecting sliding blocks (52) are symmetrically arranged on the left side and the right side of the storage plate (51), the connecting sliding blocks (52) are connected with connecting sliding grooves (42) in a sliding mode, a storage cavity (51) is horizontally arranged in the storage plate (51) in a penetrating mode, a second sound-absorbing cotton (6) is installed in the storage cavity (51) in a sliding mode, and ventilating grooves (512) vertically arranged in a penetrating mode are evenly distributed in the storage plate (51) in the front-back direction;
hand power subassembly (7) include horizontally distributed's hand lever (71), and hand lever (71) both sides lower extreme is equipped with connecting rod (72) perpendicularly, and connecting rod (72) lower extreme is equipped with first articulated piece (721), and load-bearing panel (15) rear end is equipped with articulated second articulated piece (153) that link to each other with first articulated piece (721), and connecting rod (72) front side upper end is equipped with reference column (73), and reference column (73) front end is fixed with magnet (74) with magnet (43) matched with.
2. The air compressor noise reduction device of claim 1, wherein: the ventilation grooves (512) are in a left-right distributed straight-line structure.
3. The air compressor noise reduction device of claim 1, wherein: when the connecting rod (72) is in a vertical state, the upper end of the hand lever (71) and the upper end of the storage cavity (51) are in the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911339721.4A CN111059024B (en) | 2019-12-23 | 2019-12-23 | Noise reduction device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911339721.4A CN111059024B (en) | 2019-12-23 | 2019-12-23 | Noise reduction device of air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111059024A true CN111059024A (en) | 2020-04-24 |
| CN111059024B CN111059024B (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911339721.4A Active CN111059024B (en) | 2019-12-23 | 2019-12-23 | Noise reduction device of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111059024B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114877311A (en) * | 2022-05-24 | 2022-08-09 | 青岛能源设计研究院有限公司 | Gas boiler falls makes an uproar and uses bracket component |
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| KR20180041018A (en) * | 2016-10-13 | 2018-04-23 | 엘지전자 주식회사 | Linear compressor |
| US20180119686A1 (en) * | 2016-10-28 | 2018-05-03 | Select Comfort Corporation | Pump With Vibration Isolators |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877311A (en) * | 2022-05-24 | 2022-08-09 | 青岛能源设计研究院有限公司 | Gas boiler falls makes an uproar and uses bracket component |
| CN114877311B (en) * | 2022-05-24 | 2022-12-02 | 青岛能源设计研究院有限公司 | Gas boiler falls makes an uproar and uses bracket component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111059024B (en) | 2021-07-30 |
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