CN109194013A - A kind of dedicated silencer cover of environment-friendly type motor - Google Patents
A kind of dedicated silencer cover of environment-friendly type motor Download PDFInfo
- Publication number
- CN109194013A CN109194013A CN201810961050.4A CN201810961050A CN109194013A CN 109194013 A CN109194013 A CN 109194013A CN 201810961050 A CN201810961050 A CN 201810961050A CN 109194013 A CN109194013 A CN 109194013A
- Authority
- CN
- China
- Prior art keywords
- acoustical panel
- partition
- environment
- motor
- friendly type
- 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.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 20
- 229920000742 Cotton Polymers 0.000 claims abstract description 16
- 230000030279 gene silencing Effects 0.000 claims abstract description 12
- 230000001413 cellular effect Effects 0.000 claims abstract description 10
- 239000010425 asbestos Substances 0.000 claims abstract description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 24
- 239000004575 stone Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010021403 Illusion Diseases 0.000 description 1
- 101000687343 Mus musculus PR domain zinc finger protein 1 Proteins 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of dedicated silencer covers of environment-friendly type motor, including blimp, left end is provided with air outlet inside blimp, the first acoustical panel is once arranged at intervals on the right side of air outlet, second acoustical panel and third acoustical panel, first acoustical panel, second acoustical panel and third acoustical panel are fixedly connected respectively at blimp, first acoustical panel, second acoustical panel and third acoustical panel include plank layer, asbestos web plate layer, cellular board layer, gap and folded form soundproof plate layer, first partition is provided on the right side of third acoustical panel, first partition inner upper end is provided with ventilation opening, the first silencing cotton is provided on the right side of partition, homogenizing plate is provided on the right side of first silencing cotton, second partition is provided on the right side of homogenizing plate, connecting tube is provided in the middle part of second partition, connect cover is welded on the right side of connecting tube, exhaust outlet is provided on the right side of connect cover.The present invention effectively can carry out noise reduction to the motor in the course of work, protect the working environment of surrounding in this way, effectively carried out environmental protection.
Description
Technical field
The present invention relates to a kind of environmental protection equipment, specifically a kind of dedicated silencer cover of environment-friendly type motor.
Background technique
Environmental protection equipment refer to for control environmental pollution, improve environmental quality and by production unit or the construction and installation system of unit
Make and build engineering goods, structures and the system come.Also it is believed that, environmental protection equipment refers to the machinery curbed environmental pollution
Converted products, such as deduster, weldering fume purifier, monomer water treatment facilities, noise controller.This understanding is incomplete.
Environmental protection equipment should also include the power-equipment of conveying flowing material containing pollutant, such as water pump, blower, conveyer；It also wraps simultaneously
The monitoring control instrument instrument for guaranteeing that Pollution treatment installation operates normally is included, such as detecting instrument, pressure gauge, flow monitoring device
Deng.Environmental improvement has been very urgent thing, we should more focus on environmental protection.Environmental protection equipment, which should include into, to be arranged
It is standby: such as air cleaner, sewage disposal device, ozone generator, industrial oxygenerating machine etc..Can industry or family can be right
The equipment that environment is administered.
Motor (English: Electric machinery is commonly called as " motor "), which refers to, realizes electric energy according to the law of electromagnetic induction
A kind of calutron of conversion or transmitting.Motor is indicated with letter M(old plant D) in circuit, its main function is
Driving torque is generated, as electrical appliance or the power source of various machinery, generator is indicated with letter G in circuit, it main
Effect is to be converted into electric energy using mechanical energy.
Power-equipment of the motor as many mechanical equipment now, in the course of work usually due to the high speed rotation of motor
A large amount of noise pollution can be generated, influences the environment of surrounding in this way.Therefore, those skilled in the art provide a kind of environment-friendly type electricity
The dedicated silencer cover of machine, to solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of the present invention is to provide a kind of dedicated silencer covers of environment-friendly type motor, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of dedicated silencer cover of environment-friendly type motor, including blimp, left end is provided with air outlet inside the blimp, it is described go out
It once is arranged at intervals with the first acoustical panel, the second acoustical panel and third acoustical panel on the right side of air port, first acoustical panel, second disappear
Soundboard and third acoustical panel are fixedly connected respectively at blimp, first acoustical panel, the second acoustical panel and third noise reduction
Plate includes plank layer, asbestos web plate layer, cellular board layer, gap and folded form soundproof plate layer, and the plank layer is arranged in acoustical panel
Outermost layer, the plank layer is internally provided with asbestos stratum reticulare, is provided with cellular board layer, the honeycomb on the inside of the asbestos stratum reticulare
Gap is provided between plate layer, mounting head folds soundproof plate inside the gap, is provided with first on the right side of the third acoustical panel
Partition, the first partition inner upper end are provided with ventilation opening, are provided with the first silencing cotton on the right side of the partition, described first disappears
It is provided with homogenizing plate on the right side of sound cotton, second partition is provided on the right side of the homogenizing plate, is provided with connection in the middle part of the second partition
It manages, blower is installed in the connecting tube, connect cover is welded on the right side of the connecting tube, is provided with air draft on the right side of the connect cover
Mouthful.
As a further solution of the present invention: the air outlet is internally provided with Air Filter, can there is favorite prevention powder
Dirt enters inside equipment.
As a further solution of the present invention: being provided with motor installation cavity, the motor installation cavity on the right side of the exhaust outlet
Rear end is provided with connecting cavity, and the connecting cavity upper and lower ends are provided with L-type grip block, and the setting of L grip block left end is with teeth
Item, the rack gear left side are engaged with gear, and the gear lower end is equipped with stepper motor, and the stepper motor passes through belt and tooth
Shaft on wheel is attached.
As a further solution of the present invention: upper end is provided with blast pipe on the left of the motor installation cavity, for equipment it
Between air flowing.
As a further solution of the present invention: the blast pipe is internally provided with the second silencing cotton, can have it is favorite into
Row noise reduction.
As a further solution of the present invention: being provided with limiting slot at left and right sides of the motor installation cavity interior lower end, institute
It states and is provided with motor mount between limiting slot, be provided with several shock-absorbing springs on the downside of the motor mount, can be convenient
The vibration damping when installation and use of motor can have favorite carry out noise reduction in this way.
As further scheme of the invention:, the connecting cavity rear and front end is provided with the first opening and the second opening,
Facilitate the stretching of the shaft of the motor of installation in this way.
Compared with prior art, the beneficial effects of the present invention are: the present invention is by being mounted on motor for used motor
In mounting base, is then rotated again by stepper motor band moving gear, since gear and rack gear engage, drive L-type grip block in this way
The shaft of the motor of installation is limited so that it is convenient to which the sealing for guaranteeing equipment is operated jointly in the installation of equipment；It is carried out in motor
In the course of work, exhausting is carried out to motor installation cavity inside by blower, it in this way can be by the generation inside motor installation cavity
Then heat and noise are discharged the air by homogenizing plate to the first noise reduction again by exhaust outlet, connect cover and connecting tube extraction
A point first layer noise reduction is carried out on cotton, left side is then drained into air by ventilation opening again, and disappear by third acoustical panel, second
After soundboard and the first acoustical panel carry out secondary noise reduction, then by air outlet discharge, oneself of equipment can be effectively realized in this way
The effect of dynamic effect；And wind cooling temperature lowering, it can effectively guarantee the use of the safety continuous of motor.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of dedicated silencer cover of environment-friendly type motor.
Fig. 2 is a kind of partial structural diagram of acoustical panel in dedicated silencer cover of environment-friendly type motor.
Fig. 3 is a kind of structural schematic diagram of connecting cavity right view in dedicated silencer cover of environment-friendly type motor.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It is refering to fig. 1 and Fig. 2, a kind of dedicated silencer cover of environment-friendly type motor, including blimp 1, described in the embodiment of the present invention
1 inside left end of blimp is provided with air outlet 2, can be convenient the ventilation of equipment, and the air outlet 2 is internally provided with Air Filter,
For the dust-proof of equipment, 2 right side of air outlet is once arranged at intervals with the first acoustical panel 3, the second acoustical panel 4 and third noise reduction
Plate 5, can have it is favorite to noise carry out noise reduction, first acoustical panel 3, the second acoustical panel 4 and third acoustical panel 5 respectively at
Blimp 2 is fixedly connected, and first acoustical panel 3, the second acoustical panel 4 and third acoustical panel 5 include plank layer 301, stone
Cotton net plate layer 302, cellular board layer 303, gap 304 and folded form soundproof plate layer 305, the plank layer 301 are arranged in acoustical panel
Outermost layer, can be used for noise reduction, the plank layer 301 is internally provided with asbestos stratum reticulare 302, and such cellular board honeycomb core separates
At numerous closed cells, air is prevented to flow, be hindered sound wave, improves acoustic absorptivity, the asbestos stratum reticulare 302
Inside is provided with cellular board layer 303, and gap 304, the 304 inside mounting head of gap are provided between the cellular board layer 303
Fold soundproof plate 305, sound absorption wedge can be formed, can effectively eliminate standing wave, reach eliminate noise as a result, the third
First partition 6 is provided on the right side of acoustical panel 5,6 inner upper end of first partition is provided with ventilation opening 7, facilitates the ventilation of equipment,
It is provided with the first silencing cotton 8 on the right side of the partition 6, noise reduction can be effectively performed, is provided on the right side of first silencing cotton 8
Flowing plate 9 facilitates the Uniform Flow of air, is convenient for the noise reduction of the first silencing cotton 8 in this way, is provided with second on the right side of the homogenizing plate 9
Partition 10 is provided with connecting tube 11 in the middle part of the second partition 10, is equipped with blower 12 in the connecting tube 11, can have and like
Air is drained, not only facilitate the carry out noise reduction of equipment in this way, but also wind cooling temperature lowering, the company can be carried out to motor
11 right side of adapter tube is welded with connect cover 13, and exhaust outlet 14 is provided on the right side of the connect cover 13, is arranged on the right side of the exhaust outlet 14
There is motor installation cavity 15, the 15 left side upper end of motor installation cavity is provided with blast pipe 16, and the blast pipe 16 is internally provided with
Second silencing cotton 17 is provided with limiting slot 18, institute at left and right sides of 15 interior lower end of motor installation cavity for the noise reduction of equipment
It states and is provided with motor mount 19 between limiting slot 18, the limiting slot 18 at both ends can effectively limit click mounting base 19
Position, guarantee motor mount 19 is smoothly mobile up and down in this way, is provided with several vibration dampings on the downside of the motor mount 19
During the work time, the vibration that motor generates equipment can be effectively reduced in spring 20, such motor, in this way can be effectively
Reduce the noise pollution of equipment.
Refering to Fig. 3,15 rear end of motor installation cavity is provided with connecting cavity 21, and 21 upper and lower ends of connecting cavity are provided with
L-type grip block 22,22 left end of L grip block are provided with rack gear 23, gear 24, the tooth are engaged on the left of the rack gear 23
It takes turns 24 lower ends and stepper motor 25 is installed, the stepper motor 25 is attached by belt and the shaft on gear 24, described
21 rear and front end of connecting cavity is provided with the first opening 26 and the second opening 27, is rotated by stepper motor 25 with moving gear 24, by
It is engaged in gear 24 and rack gear 23, drives the shaft of the motor of 22 pairs of L-type grip block installations to limit in this way, can have in this way
It is favorite that equipment is sealed, so that equipment be facilitated to carry out noise reduction.
Then the present invention is driven by stepper motor 25 again by the way that used motor to be mounted on motor mount 19
Gear 24 rotates, and since gear 24 and rack gear 23 engage, drives the shaft of the motor of 22 pairs of L-type grip block installations to limit in this way
Position, by blower 12 to exhausting is carried out inside motor installation cavity 15, can pacify motor in this way in the course of work in motor
The heat and noise for the generation behaveing affectedly inside 15 are extracted out by 14. connect cover 13 of exhaust outlet and connecting tube 13, then again by equal
Flowing plate 10 is discharged the air into a point first layer noise reduction is carried out on the first silencing cotton 8, is then drained into again by ventilation opening 7 into air
Left side, and after carrying out secondary noise reduction by third acoustical panel 5, the second acoustical panel 4 and the first acoustical panel 3, then pass through 2 row of air outlet
Out, the effect of the autokinetic effect of equipment, and wind cooling temperature lowering can be effectively realized in this way, can effectively guarantee motor
The use of safety continuous.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of dedicated silencer cover of environment-friendly type motor, including blimp (1), the internal left end of the blimp (1) is provided with outlet air
Mouth (2), air outlet (2) right side are once arranged at intervals with the first acoustical panel (3), the second acoustical panel (4) and third acoustical panel
(5), which is characterized in that first acoustical panel (3), the second acoustical panel (4) and third acoustical panel (5) are respectively at blimp (2)
It is fixedly connected, first acoustical panel (3), the second acoustical panel (4) and third acoustical panel (5) include plank layer (301), stone
Cotton net plate layer (302), cellular board layer (303), gap (304) and folded form soundproof plate layer (305), the plank layer (301) set
The outermost layer in acoustical panel is set, the plank layer (301) is internally provided with asbestos stratum reticulare (302), in the asbestos stratum reticulare (302)
Side is provided with cellular board layer (303), is provided with gap (304) between the cellular board layer (303), and the gap (304) is internal
Mounting head folds soundproof plate (305), is provided with first partition (6) on the right side of the third acoustical panel (5), the first partition (6)
Inner upper end is provided with ventilation opening (7), is provided with the first silencing cotton (8) on the right side of the partition (6), first silencing cotton (8)
Right side is provided with homogenizing plate (9), is provided with second partition (10) on the right side of the homogenizing plate (9), in the middle part of the second partition (10)
It is provided with connecting tube (11), is equipped with blower (12) on the connecting tube (11), be welded with connection on the right side of the connecting tube (11)
It covers (13), is provided with exhaust outlet (14) on the right side of the connect cover (13).
2. a kind of dedicated silencer cover of environment-friendly type motor according to claim 1, which is characterized in that in the air outlet (2)
Portion is provided with Air Filter.
3. a kind of dedicated silencer cover of environment-friendly type motor according to claim 1, which is characterized in that the exhaust outlet (14) is right
Side is provided with motor installation cavity (15), and motor installation cavity (15) rear end is provided with connecting cavity (21), the connecting cavity (21)
Upper and lower ends are provided with L-type grip block (22), and L grip block (22) left end is provided with rack gear (23), the rack gear (23)
Left side is engaged with gear (24), and gear (24) lower end is equipped with stepper motor (25), and the stepper motor (25) passes through skin
Band is attached with the shaft on gear (24).
4. a kind of dedicated silencer cover of environment-friendly type motor according to claim 3, which is characterized in that the motor installation cavity
(15) left side upper end is provided with blast pipe (16).
5. a kind of dedicated silencer cover of environment-friendly type motor according to claim 4, which is characterized in that in the blast pipe (16)
Portion is provided with the second silencing cotton (17).
6. a kind of dedicated silencer cover of environment-friendly type motor according to claim 3, which is characterized in that the motor installation cavity
(15) it is provided with limiting slot (18) at left and right sides of interior lower end, is provided with motor mount (19) between the limiting slot (18),
Several shock-absorbing springs (20) are provided on the downside of the motor mount (19).
7. a kind of dedicated silencer cover of environment-friendly type motor according to claim 3, which is characterized in that before the connecting cavity (21)
Both ends are provided with the first opening (26) and the second opening (27) afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961050.4A CN109194013B (en) | 2018-08-22 | 2018-08-22 | A kind of dedicated silencer cover of environment-friendly type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961050.4A CN109194013B (en) | 2018-08-22 | 2018-08-22 | A kind of dedicated silencer cover of environment-friendly type motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109194013A true CN109194013A (en) | 2019-01-11 |
| CN109194013B CN109194013B (en) | 2019-10-01 |
Family
ID=64919138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810961050.4A Active CN109194013B (en) | 2018-08-22 | 2018-08-22 | A kind of dedicated silencer cover of environment-friendly type motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109194013B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376948A (en) * | 2020-10-23 | 2021-02-19 | 颜达 | Machining plus type noise reduction device |
| CN112963400A (en) * | 2021-01-29 | 2021-06-15 | 常州市雷美特液压机械有限公司 | Piston rod structure with good sealing performance for hydraulic oil cylinder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748997A (en) * | 1972-04-06 | 1973-07-31 | Tempmaster Corp | Acoustical insulated fan and temperature conditioning penthouse unit |
| CN205822487U (en) * | 2016-07-11 | 2016-12-21 | 扬州日模邗沟装饰工程有限公司 | A kind of body of wall sound insulating pad |
| CN206817685U (en) * | 2017-04-10 | 2017-12-29 | 山西拙听医疗科技有限公司 | A kind of noise reduction ventilator |
-
2018
- 2018-08-22 CN CN201810961050.4A patent/CN109194013B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748997A (en) * | 1972-04-06 | 1973-07-31 | Tempmaster Corp | Acoustical insulated fan and temperature conditioning penthouse unit |
| CN205822487U (en) * | 2016-07-11 | 2016-12-21 | 扬州日模邗沟装饰工程有限公司 | A kind of body of wall sound insulating pad |
| CN206817685U (en) * | 2017-04-10 | 2017-12-29 | 山西拙听医疗科技有限公司 | A kind of noise reduction ventilator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376948A (en) * | 2020-10-23 | 2021-02-19 | 颜达 | Machining plus type noise reduction device |
| CN112963400A (en) * | 2021-01-29 | 2021-06-15 | 常州市雷美特液压机械有限公司 | Piston rod structure with good sealing performance for hydraulic oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109194013B (en) | 2019-10-01 |
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Effective date of registration: 20190827 Address after: 518000, 10E, F, main building of Xin Bao Hui building, Nanhai Road, Shenzhen, Guangdong, Nanshan District Applicant after: SHENZHEN SHENRI ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY CO., LTD. Address before: 232200 No. 15, Group 9, Xinzhuang Village, Shouchun Town, Shouxian County, Huainan City, Anhui Province Applicant before: Sun Ranran |
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