CN110486265A - Effectively mute reciprocating pump - Google Patents
Effectively mute reciprocating pump Download PDFInfo
- Publication number
- CN110486265A CN110486265A CN201910683566.1A CN201910683566A CN110486265A CN 110486265 A CN110486265 A CN 110486265A CN 201910683566 A CN201910683566 A CN 201910683566A CN 110486265 A CN110486265 A CN 110486265A
- Authority
- CN
- China
- Prior art keywords
- blimp
- reciprocating pump
- module
- noise
- mute
- 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.)
- Pending
Links
Classifications
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
- F04B53/002—Noise damping by encapsulation
-
- 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
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of effectively mute reciprocating pumps, belong to the technical field of reciprocating pump, it includes pedestal and the reciprocating pump ontology that is fixedly connected on pedestal, the blimp that can surround reciprocating pump setting is connected on pedestal, blimp inner sidewall array is provided with multiple mute units that can absorb sound wave, box body is fixedly connected at the top of blimp, silencing system is provided in box body, silencing system includes the inside sound wave monitoring module for receiving blimp interior noise, noise is converted into the acoustic wave analysis module of acoustic pressure waveform, sound wave for generating the antinoise computing module of antinoise signal and for exporting from antinoise signal to blimp issues module, the present invention has the noise that reciprocating pump sending can be greatly reduced, realize the effect that silence processing is carried out to reciprocating pump.
Description
Technical field
The present invention relates to the technical fields of reciprocating pump, more particularly, to a kind of effectively mute reciprocating pump.
Background technique
Reciprocating pump includes piston pump, metering pump and diaphragm pump at present, is generally called reciprocating pump.It is one kind of positive-dispacement pump, is answered
With than wide.Reciprocating pump is to provide the conveyer of energy to liquid directly in the form of pressure energy by the reciprocating motion of piston
Tool.By driving method, reciprocating pump is divided into power pump (motor drive) and direct acting pump (steam, gas or liquid driven) two is big
Class.Reciprocating pump is in use since self structure is complicated and water flow movement can generate water hammer effect, so ratio can be issued
Biggish noise can all use certain denoising structure in actual application.
The prior art can refer to the Chinese invention patent that Authorization Notice No. is CN103967737B, and it discloses a kind of reciprocal
Pump, it is characterised in that: reciprocating pump is horizontal reciprocating pump, and the top of the horizontal reciprocating pump is arranged prime mover, prime mover with it is horizontal
Reciprocating pump is connected by vertical type transmission mechanism.Compared with the prior art, the advantages of the present invention are as follows: reciprocating pump uses horizontal pump weight
The heart is low, not the tilting moment of vertical reciprocation pump, and being driven horizontal reciprocating pump using vertical belt has occupied area small, vibration
Small, belt life is long, and noise of motor is low, operates more stable and reliable.
Prior art among the above has the following deficiencies: that the noise reasons generated due to reciprocating pump are more complicated, past
For multiple pump even across above-mentioned technical proposal noise reduction, the noise of generation can still be maintained at a higher situation, though using every
Sound cover covers fuselage, due to that can not cover reciprocating pump, or meeting gap completely, still has no small influence, In to ambient enviroment
Under the operating condition of portion requirements quiet environment, reciprocating pump needs to carry out silence processing.
Summary of the invention
The object of the present invention is to provide a kind of effectively mute reciprocating pumps, and the noise of reciprocating pump sending can be greatly reduced,
It realizes and silence processing is carried out to reciprocating pump.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of effectively mute reciprocating pump is connected on pedestal including pedestal and the reciprocating pump ontology being fixedly connected on pedestal
The blimp of reciprocating pump setting can be surrounded, blimp inner sidewall array is provided with multiple mute units that can absorb sound wave,
It is fixedly connected with box body at the top of blimp, silencing system is provided in box body, silencing system includes internal sound wave monitoring module, sound
Wave analysis module, antinoise computing module and sound wave issue module；
Noise and output inside the internal sound wave monitoring module real-time reception blimp；
The acoustic wave analysis module receives noise and analyzes the acoustic pressure waveform of noise, and acoustic wave analysis module exports acoustic pressure waveform；
The antinoise computing module receives acoustic pressure waveform and the 180 ° of phases that are staggered, and generates antinoise signal, and antinoise calculates mould
Block exports antinoise signal；
It includes the multiple loudspeakers for being fixedly connected on box body bottom that the sound wave, which issues module, and loudspeaker array is set in box body
And it is located inside mute cover, sound wave issues module and receives antinoise signal and export antinoise signal by loudspeaker.
By using above scheme, silencing system understands the noise inside real-time monitoring blimp and issues anti-noise signal,
Antinoise signal is interfered and is offset with the noise inside blimp, making an uproar for reciprocating pump ontology generation is greatly reduced
Sound, the mute unit on the inner sidewall of blimp absorb the sound not being canceled out, even if making an uproar of generating of reciprocating pump
Sound source is more complicated, also can carry out silence processing to reciprocating pump ontology, adapt to the operating condition more demanding to quiet environment.
The present invention is further arranged to: mute unit includes that several transverse directions for being fixedly connected on blimp inner sidewall are convex
Rib and several longitudinal fins being fixedly connected on blimp inner sidewall, lateral fin is identical as longitudinal shape of fin, laterally
Fin close to mute cover long side be transversely to the machine direction fin close to mute cover while long side.
By using above scheme, lateral fin effectively absorbs sound with longitudinal fin mutual cooperation, simultaneously
Also certain booster action can be played to blimp, reduce the broken possibility of blimp.
The present invention is further arranged to: lateral fin and longitudinal fin are obliquely installed to pedestal direction.
By using above scheme, inclined transverse direction fin and longitudinal fin can be more efficiently absorbed and be sent out by reciprocating pump
Noise out.
The present invention is further arranged to: silencing system further includes external noise monitoring modular, noise judgment module and wireless
Transmission module；
The external noise monitoring modular includes the sound detection equipment being set to outside blimp, sound detection equipment real-time detection
Noise decibel outside blimp simultaneously exports；
The noise judgment module receives noise decibel and is compared with preset value, when noise decibel is greater than preset value, makes an uproar
The output of sound judgment module has the alarm signal of noise decibel；
The wireless transport module receives alarm signal and alarm signal is sent to the mobile device of user.
By using above scheme, silencing system can monitor the noise decibel outside reciprocating pump, to judge that silencing system is
No failure or reciprocating pump break down so that noise is excessive, after judgement is broken down silencing system can the movement to user set
It is standby above to transmit information to remind user, it is overhauled in time convenient for user.
The present invention is further arranged to: being stored with device numbering in wireless transport module, will be set when sending alarm signal
Standby number issues together with alarm signal.
By using above scheme, device numbering can help user quickly to find the reciprocating pump of failure.
The present invention is further arranged to: silencing system further includes locating module, and the locating module is detected and recorded current
Device location and to wireless transport module transmission of location information, wireless transport module when sending alarm signal by location information with
Alarm signal issues together.
By using above scheme, location information can help user quickly to find the reciprocating pump of failure.
The present invention is further arranged to: pedestal is made of flexible material, and chassis interior offers cavity, in cavity
Filled with non-newtonian fluid.
By using above scheme, pedestal can be made to play sufficient buffering effect, can effectively slow down reciprocating pump production
Raw vibration.
The present invention is further arranged to: the clamping groove of cooperation blimp is offered on pedestal, blimp can be connected in card
In access slot.
By using above scheme, blimp can be removed from pedestal, facilitate user maintenance reciprocating pump.
The present invention is further arranged to: pedestal is fixedly connected with flexible buffer layer at clamping groove location, every
Sound cover can be connected in buffer layer.
By using above scheme, buffer layer can reduce the vibration that pedestal is transmitted to blimp, while can make sound insulation
It covers more stable with the connection relationship of pedestal.
The present invention is further arranged to: blimp offers inclined-plane at buffer layer position, and inclined-plane is by blimp bottom
It is arranged to blimp outer incline.
By using above scheme, inclined-plane can make blimp be easier to make buffer layer when being connected in clamping groove
Deformation, it is easier to be inserted into clamping groove, while can also reinforce the stability of blimp relative position.
In conclusion the invention has the following advantages:
1. silencing system understands the noise inside real-time monitoring blimp and issues anti-noise signal, antinoise signal and blimp
Internal noise is interfered and is offset, to be greatly reduced the noise of reciprocating pump ontology generation, on the inner sidewall of blimp
Mute unit the sound not being canceled out is absorbed, even if reciprocating pump generate noise source it is more complicated, also can
Silence processing is carried out to reciprocating pump ontology, adapts to the operating condition more demanding to quiet environment；
2. lateral fin effectively absorbs sound with longitudinal fin mutual cooperation, while can also play to blimp
Certain booster action reduces the broken possibility of blimp；
3. silencing system can monitor the noise decibel outside reciprocating pump, to judge whether silencing system fails or reciprocating pump occurs
Failure is so that noise is excessive, and silencing system can transmit information to remind in the mobile device to user after judgement is broken down
User overhauls in time convenient for user.
Detailed description of the invention
Fig. 1 is the overall structure diagram of embodiment；
Fig. 2 is the explosive view of prominent reciprocating pump ontology in embodiment；
Fig. 3 is the cross-sectional view of prominent mute unit in embodiment；
Fig. 4 is the enlarged drawing of part A in Fig. 3；
Fig. 5 is the cross-sectional view of prominent chassis interior in embodiment；
Fig. 6 is the system block diagram of internal sound wave monitoring module in prominent silencing system in embodiment；
Fig. 7 is the system block diagram of external sound wave monitoring module in prominent silencing system in embodiment.
In figure, 1, reciprocating pump ontology；2, pedestal；21, clamping groove；22, buffer layer；23, cavity；231, non-newtonian fluid；
3, blimp；31, mute unit；311, lateral fin；312, longitudinal fin；32, box body；321, loudspeaker；33, inclined-plane；4,
Silencing system；41, internal sound wave monitoring module；42, acoustic wave analysis module；43, antinoise computing module；44, sound wave issues mould
Block；45, external noise monitoring modular；451, sound detection equipment；46, noise judgment module；47, wireless transport module；48, fixed
Position module.
Specific embodiment
Embodiment: a kind of effectively mute reciprocating pump as depicted in figs. 1 and 2, including pedestal 2 and is fixedly connected on pedestal 2
On reciprocating pump ontology 1.Pedestal 2 is made of the flexible material such as vulcanie, 65Mn.Being connected on pedestal 2 can wrap
The blimp 3 of reciprocating pump setting is enclosed, the clamping groove 21 of cooperation blimp 3 is offered on pedestal 2, pedestal 2 is close to clamping groove 21
The place of setting is fixedly connected with buffer layer 22, and buffer layer 22 is made of the flexible material such as TPEE, TPR, and blimp 3 can be clamped
In in buffer layer 22.The noise that blimp 3 is used to that reciprocating pump ontology 1 to be stopped to issue, and blimp 3 can take from pedestal 2
Under, facilitate user maintenance reciprocating pump.
As shown in Fig. 2, blimp 3 offers inclined-plane 33 at 22 position of buffer layer, inclined-plane 33 from 3 bottom of blimp to
The setting of 3 outer incline of blimp.Inclined-plane 33 can make blimp 3 be easier that buffer layer 22 occurs when being connected in clamping groove 21
Deformation, it is easier to be inserted into clamping groove 21, while can also reinforce the stability of 3 relative position of blimp.
As shown in Figure 3 and Figure 4,3 inner sidewall array of blimp is provided with multiple mute units 31, and mute unit 31 includes
It several lateral fins 311 for being fixedly connected on 3 inner sidewall of blimp and is fixedly connected on several vertical on 3 inner sidewall of blimp
To fin 312.Lateral fin 311 is identical as longitudinal shape of fin 312, the length of one side of the lateral fin 311 close to mute cover
While being transversely to the machine direction fin 312 close to the long side of the one side of mute cover.Lateral fin 311 and longitudinal fin 312 are to 2 side of pedestal
To being obliquely installed.Lateral fin 311 effectively absorbs sound with longitudinal mutual cooperation of fin 312, while also can be right
Blimp 3 plays certain booster action, reduces the broken possibility of blimp 3.
As shown in figure 5, cavity 23 is offered inside pedestal 2, filled with non-newtonian fluids such as rubber solutions in cavity 23
231.Non-newtonian fluid 231 can fully absorb reciprocating pump softer by subtleer vibration or not vibrated dynamic formula
The pressure that ontology 1 generates absorbs low amplitude vibrations.And non-newtonian fluid 231 can become harder, energy when being shaken
Enough prevent pedestal 2 from generating bigger vibration.
Fig. 2 and Fig. 3 are reviewed, box body 32 is fixedly connected at the top of blimp 3, silencing system 4 is provided in box body 32.Box body
32 bottoms are fixedly connected with multiple loudspeakers 321, and 321 array of loudspeaker is set in box body 32 and is located inside mute cover.
Sound detection equipment 451 is fixedly connected at the top of box body 32.
As shown in Figure 6 and Figure 7, silencing system 4 includes internal sound wave monitoring module 41, acoustic wave analysis module 42, sound wave point
It analyses module 42, sound wave sending module 44, external noise monitoring modular 45, noise judgment module 46, wireless transport module 47 and determines
Position module 48.
As shown in fig. 6, noise and output inside internal 41 real-time reception blimp 3 of sound wave monitoring module.Acoustic wave analysis
Module 42 receives noise and analyzes the acoustic pressure waveform of noise, and acoustic wave analysis module 42 exports acoustic pressure waveform.Antinoise computing module
43 receive acoustic pressure waveform and the 180 ° of phases that are staggered, and generate antinoise signal, and antinoise computing module 43 exports antinoise signal.Sound
Wave issues module 44 and receives antinoise signal and export antinoise signal by loudspeaker 321.Silencing system 4 can real-time monitoring every
Noise inside sound cover 3 simultaneously issues anti-noise signal, and antinoise signal is interfered and supported with the noise inside blimp 3
Disappear, the noise of the generation of reciprocating pump ontology 1 is greatly reduced.
As shown in fig. 7, external noise monitoring modular 45 connects sound detection equipment 451, sound detection equipment 451 is examined in real time
Survey blimp 3 outside noise decibel and export.Noise judgment module 46 receives noise decibel and is simultaneously compared with preset value, when making an uproar
When cent shellfish is greater than preset value, the output of noise judgment module 46 has the alarm signal of noise decibel.In wireless transport module 47
It is stored with device numbering, wireless transport module 47 receives alarm signal and alarm signal is sent to user together with device numbering
Mobile device, the mobile device of user can be mobile phone, tablet computer, laptop computer etc., and wireless transport module 47 can lead to
It crosses the modes such as short message, QQ message, wechat message and sends information to mobile device.Silencing system 4 can monitor outside reciprocating pump
Noise decibel, to judge whether silencing system 4 fails or reciprocating pump failure is so that noise is excessive, in judgement failure
Silencing system 4 can transmit information to remind user in the mobile device of user afterwards, overhaul in time convenient for user.
As shown in fig. 7, locating module 48 detects and records current device location and to 47 transmission location of wireless transport module
Information, wireless transport module 47 issue location information when sending alarm signal together with alarm signal.Location information can
User is helped quickly to find the reciprocating pump of failure.
Usage mode: the noise inside the meeting real-time monitoring blimp 3 of silencing system 4 exports and noise after analysis
The anti-noise signal of antiphase carrys out offset noise.Since the noise that reciprocating pump generates is more complicated, so needing acoustic insulating unit
Preliminary absorption is carried out to noise, while can also absorb the sound not being canceled out, and the work for mitigating silencing system 4 is strong
Degree improves the noise treatment intensity of silencing system 4.Even if the noise source that reciprocating pump of the invention generates is more complicated, also can be right
Reciprocating pump ontology 1 carries out silence processing, adapts to the operating condition more demanding to quiet environment.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of effectively mute reciprocating pump, including pedestal (2) and the reciprocating pump ontology (1) being fixedly connected on pedestal (2),
It is characterized in that: being connected with the blimp (3) that can surround reciprocating pump setting, the setting of blimp (3) inner sidewall array on pedestal (2)
There are multiple mute units (31) that can absorb sound wave, be fixedly connected with box body (32) at the top of blimp (3), is set in box body (32)
It is equipped with silencing system (4), silencing system (4) includes internal sound wave monitoring module (41), acoustic wave analysis module (42), antinoise meter
It calculates module (43) and sound wave issues module (44)；
The internal noise of internal sound wave monitoring module (41) the real-time reception blimp (3) and output；
The acoustic wave analysis module (42) receives noise and analyzes the acoustic pressure waveform of noise, and acoustic wave analysis module (42) exports acoustic pressure
Waveform；
The antinoise computing module (43) receives acoustic pressure waveform and the 180 ° of phases that are staggered, and generates antinoise signal, antinoise meter
It calculates module (43) and exports antinoise signal；
It includes the multiple loudspeakers (321) for being fixedly connected on box body (32) bottom, loudspeaker that the sound wave, which issues module (44),
(321) array is set on box body (32) and is located inside mute cover, and sound wave issues module (44) and receives antinoise signal simultaneously
Antinoise signal is exported by loudspeaker (321).
2. effectively mute reciprocating pump according to claim 1, it is characterised in that: mute unit (31) includes fixed connects
Several lateral fins (311) for being connected on blimp (3) inner sidewall and be fixedly connected on blimp (3) inner sidewall several indulge
To fin (312), lateral fin (311) is identical as the shape of longitudinal fin (312), and lateral fin (311) is close to mute cover
Long side be transversely to the machine direction fin (312) close to mute cover while long side.
3. effectively mute reciprocating pump according to claim 2, it is characterised in that: lateral fin (311) and longitudinal fin
(312) it is obliquely installed to pedestal (2) direction.
4. effectively mute reciprocating pump according to claim 1, it is characterised in that: silencing system (4) further includes that outside is made an uproar
Sound monitoring modular (45), noise judgment module (46) and wireless transport module (47)；
The external noise monitoring modular (45) includes being set to the sound detection equipment (451) of blimp (3) outside, sound detection
The outer noise decibel of equipment (451) real-time detection blimp (3) simultaneously exports；
The noise judgment module (46) receives noise decibel and is compared with preset value, when noise decibel is greater than preset value
When, noise judgment module (46) output has the alarm signal of noise decibel；
The wireless transport module (47) receives alarm signal and alarm signal is sent to the mobile device of user.
5. effectively mute reciprocating pump according to claim 4, it is characterised in that: be stored in wireless transport module (47)
Device numbering issues device numbering when sending alarm signal together with alarm signal.
6. effectively mute reciprocating pump according to claim 4, it is characterised in that: silencing system (4) further includes positioning mould
Block (48), the locating module (48) are detected and are recorded current device location and believe to wireless transport module (47) transmission location
Breath, wireless transport module (47) issue location information when sending alarm signal together with alarm signal.
7. effectively mute reciprocating pump according to claim 1, it is characterised in that: pedestal (2) is by flexible material
It is made, is offered cavity (23) inside pedestal (2), be filled with non-newtonian fluid (231) in cavity (23).
8. effectively mute reciprocating pump according to claim 1, it is characterised in that: pedestal offers cooperation sound insulation on (2)
The clamping groove (21) of (3) is covered, blimp (3) can be connected in clamping groove (21).
9. effectively mute reciprocating pump according to claim 8, it is characterised in that: pedestal (2) is close to clamping groove (21) position
The place of setting is fixedly connected with flexible buffer layer (22), and blimp (3) can be connected in buffer layer (22).
10. effectively mute reciprocating pump according to claim 9, it is characterised in that: blimp (3) is close to buffer layer (22)
It is offered at position inclined-plane (33), inclined-plane (33) are arranged from blimp (3) bottom to blimp (3) outer incline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683566.1A CN110486265A (en) | 2019-07-26 | 2019-07-26 | Effectively mute reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683566.1A CN110486265A (en) | 2019-07-26 | 2019-07-26 | Effectively mute reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486265A true CN110486265A (en) | 2019-11-22 |
Family
ID=68548355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910683566.1A Pending CN110486265A (en) | 2019-07-26 | 2019-07-26 | Effectively mute reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486265A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784974B2 (en) * | 1989-02-27 | 1995-09-13 | 株式会社東芝 | Silencer for cooling system |
| CN201925152U (en) * | 2011-01-18 | 2011-08-10 | 山东贺友集团有限公司 | Noise-isolation device for oil pump |
| CN203146273U (en) * | 2013-03-01 | 2013-08-21 | 上海兰博贸易有限公司 | Silencing cover of mass-spectrum mechanical pump |
| CN105336318A (en) * | 2015-11-18 | 2016-02-17 | 重庆新世杰电气股份有限公司 | Initiative denoising silence device for large generator unit |
| CN205292510U (en) * | 2016-01-25 | 2016-06-08 | 北谷电子有限公司 | Engineering machine tool driver's cabin with active noise reduction |
| CN108755477A (en) * | 2018-07-13 | 2018-11-06 | 南京工业职业技术学院 | A kind of height-adjustable non-newtonian fluid deceleration strip |
| CN108953237A (en) * | 2018-07-24 | 2018-12-07 | 厦门百霖净水科技有限公司 | A kind of silent pump |
| CN109028349A (en) * | 2018-06-15 | 2018-12-18 | 青岛海信日立空调系统有限公司 | Blimp, air-conditioner outdoor unit and noise-reduction method |
| CN109318774A (en) * | 2018-09-04 | 2019-02-12 | 徐州华瑞机械锻造有限公司 | A kind of buffer unit used for buses |
| CN109610364A (en) * | 2018-12-26 | 2019-04-12 | 盐城市骏泰交通设施有限公司 | A kind of adjustable square deceleration strip of novel high |
| CN209142712U (en) * | 2018-11-07 | 2019-07-23 | 云南中建西部建设有限公司 | A kind of placing box of concrete bouncing back instrument |
-
2019
- 2019-07-26 CN CN201910683566.1A patent/CN110486265A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784974B2 (en) * | 1989-02-27 | 1995-09-13 | 株式会社東芝 | Silencer for cooling system |
| CN201925152U (en) * | 2011-01-18 | 2011-08-10 | 山东贺友集团有限公司 | Noise-isolation device for oil pump |
| CN203146273U (en) * | 2013-03-01 | 2013-08-21 | 上海兰博贸易有限公司 | Silencing cover of mass-spectrum mechanical pump |
| CN105336318A (en) * | 2015-11-18 | 2016-02-17 | 重庆新世杰电气股份有限公司 | Initiative denoising silence device for large generator unit |
| CN205292510U (en) * | 2016-01-25 | 2016-06-08 | 北谷电子有限公司 | Engineering machine tool driver's cabin with active noise reduction |
| CN109028349A (en) * | 2018-06-15 | 2018-12-18 | 青岛海信日立空调系统有限公司 | Blimp, air-conditioner outdoor unit and noise-reduction method |
| CN108755477A (en) * | 2018-07-13 | 2018-11-06 | 南京工业职业技术学院 | A kind of height-adjustable non-newtonian fluid deceleration strip |
| CN108953237A (en) * | 2018-07-24 | 2018-12-07 | 厦门百霖净水科技有限公司 | A kind of silent pump |
| CN109318774A (en) * | 2018-09-04 | 2019-02-12 | 徐州华瑞机械锻造有限公司 | A kind of buffer unit used for buses |
| CN209142712U (en) * | 2018-11-07 | 2019-07-23 | 云南中建西部建设有限公司 | A kind of placing box of concrete bouncing back instrument |
| CN109610364A (en) * | 2018-12-26 | 2019-04-12 | 盐城市骏泰交通设施有限公司 | A kind of adjustable square deceleration strip of novel high |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202140372U (en) | Hydraulic cylinder equipped with buffer device | |
| CN208005452U (en) | A kind of shock bracket of crystal sander | |
| CN105546029B (en) | Diesel-driven generator and its vibration-reducing control method with vibration proof mounting | |
| CN110486265A (en) | Effectively mute reciprocating pump | |
| CN108185824A (en) | The shell and its electrical equipment of a kind of home appliance | |
| CN106523580A (en) | Magnetorheological photonic crystal vibration reducing device, vibration reducing device and vibration reducing method | |
| CN209781162U (en) | Compressor silence equipment for refrigeration | |
| CN213287935U (en) | Ultrasonic cleaner sound insulation box | |
| CN216173918U (en) | Ultrasonic transducer | |
| CN213193489U (en) | Ultrasonic high-frequency vibrator | |
| CN211296437U (en) | Generator casing with noise reduction structure | |
| CN213728231U (en) | Ultrasonic cleaning machine shell | |
| CN213425933U (en) | Improved structure of low-noise box body of diesel generating set | |
| CN210247045U (en) | Portable loudspeaker | |
| CN211783845U (en) | A wired communication sound collector for mechanical equipment fault monitoring | |
| CN207936545U (en) | Compressor supporting mechanism and refrigeration equipment | |
| CN210483885U (en) | Noise reduction equipment for mobile power station | |
| CN214897606U (en) | Noise reduction box for oxygen generator | |
| CN207470394U (en) | A kind of shock insulation type piston type air compressor | |
| CN218814072U (en) | No negative pressure water supply equipment that noise is little | |
| CN207892824U (en) | A kind of bell-jar with vibration and noise reducing function | |
| CN207715331U (en) | A kind of fixed air pump of damping | |
| CN207091437U (en) | A kind of full-automatic lock core blanking machine with vibration-damping low-noise function | |
| CN108106057A (en) | Compressor supporting mechanism and refrigeration equipment | |
| CN215057753U (en) | Base for diesel generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |
|
| RJ01 | Rejection of invention patent application after publication |