CN107939985A - Mainspring type is from slowing down valve protection device - Google Patents
Mainspring type is from slowing down valve protection device Download PDFInfo
- Publication number
- CN107939985A CN107939985A CN201711174240.3A CN201711174240A CN107939985A CN 107939985 A CN107939985 A CN 107939985A CN 201711174240 A CN201711174240 A CN 201711174240A CN 107939985 A CN107939985 A CN 107939985A
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- China
- Prior art keywords
- pipeline
- clockwork spring
- designed
- module
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/50—Preventing rotation of valve members
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
Abstract
The present invention provides a kind of Mainspring type from the valve protection device that slows down, it includes clockwork spring module, vane module, sliding rail plate and pipeline module；The clockwork spring module includes shell, clockwork spring, rotation axis；The vane module includes connecting rod and impeller；Bar-shaped trough is designed with the sliding rail plate；Patty pipeline is designed with the pipeline module, the patty pipeline is divided into two layers up and down, and pipeline opening is respectively designed with the upper strata of the patty pipeline and lower floor；The Mainspring type from deceleration valve protection device be it is a kind of can reduce the flow velocity of pipeline internal flow so that required stress when reducing the unlatching and closing of valve；At the same time in the elastic construction absorption power using clockwork, so as to produce the device of the effect of buffer protection to device.
Description
Technical field
The present invention relates to valve field, is to be related to a kind of automatic protection valving especially.
Background technology
Valve is the pipeline fittings for being opened and closed the parameter of pipeline, control flow direction, adjusting and control pumped (conveying) medium；According to it
Function, can be divided into shut-off valve, check-valves, regulating valve etc.；Valve have cut-off, adjusting, water conservancy diversion, prevent adverse current, voltage stabilizing, shunting or
The functions such as overflow pressure relief；Existing valve can realize the switch to fluid, including manual switch and automatic switch, for special
It is required that valve also there is timing function, time switch can be realized, so as to fulfill the control of fluid flow；Existing valve
Device needs to exert a force to valve rod with the unlatching and closing of control valve internal structure during unlatching and closing；For
Using the valve body of butterfly valve structure, when the Fluid pressure inside the pipeline of valve connection is excessive, then user is needed to apply larger
Controling power operation valve, therefore the operation to user is there are difficulty, while can also be delayed the optimal of valve opening and closing
Time, causes using effect to decline；In addition, during user operates valve, due to valve connecting pipe internal flow
Active force influence each other with user to the applying power of valve, therefore the internal structure of valve can be caused to impact, if this is rushed
Hit power it is excessive when, then valve internal part can be caused to damage so that valve damage, pipeline fluid cannot not only be controlled
System, can also leak, it is necessary to manually carry out maintenance because of fluid, cause unnecessary loss；In conclusion therefore there is lack
Fall into.
The content of the invention
In view of the above-mentioned problems, it can subtract from the valve protection device that slows down it is an object of the invention to provide a kind of Mainspring type
The flow velocity of small pipeline internal flow, so that required stress when reducing the unlatching and closing of valve；Utilizing clockwork at the same time
Elastic construction absorption power, so as to produce the effect of buffer protection to device.
The technical proposal for solving the technical problem of the invention is：From the valve protection device that slows down, it is wrapped the Mainspring type
Include clockwork spring module, vane module, sliding rail plate and pipeline module；The clockwork spring module includes shell, clockwork spring, rotation axis；Institute
The both ends for stating shell are designed with strip bulge, and the bottom of the shell is designed with rotating hole；The clockwork spring is installed on the shell
Inside, the top for being centrally mounted at the rotating hole of the clockwork spring, the outer ring termination of the clockwork spring are fixedly mounted on outside described
On the medial surface of shell, clockwork spring bar, lateral surface and the clockwork spring of the clockwork spring bar are designed with the center termination of the clockwork spring
Center termination is fixedly connected；The rotation axis is inserted into the inside of the shell, the top surface of the rotation axis by the rotating hole
It is fixedly connected with the bottom surface of the clockwork spring bar, the floor design of the rotation axis has cone tank, is designed with and rubs in the cone tank
Wipe part；The vane module includes connecting rod and impeller；The connecting rod top surface is designed as corresponding with the taper groove shape
Tapered end face, the bottom of the connecting rod is vertical with the center of the impeller to be fixed；The impeller rotation is assemblied in the pipeline
Inside modules, are designed with rotating vane on the impeller；Bar-shaped trough, the sliding rail plate are designed with the sliding rail plate
By the bar-shaped trough and the strip bulge slidable fit of the clockwork spring module housing, the sliding rail plate is fixedly mounted on institute
State in pipeline module；Patty pipeline is designed with the pipeline module, the patty pipeline is divided into two layers up and down, the circle
Pipeline opening is respectively designed with the upper strata of cheese pipeline and lower floor；The inner ring surface diameter size of the patty pipeline is more than described
The outer diameter dimension of impeller, the Center of the patty pipeline have a circular hole, the connecting rod by the circular hole with it is described
The impeller inside patty pipeline is sequentially connected, the upper surface of the patty pipeline and the bottom surface of the sliding rail plate
It is fixedly connected.
Preferably, the clockwork spring inside modules are designed with flow monitor, the flow monitor includes electromagnetism
Sensing device and timer；The electromagnetic induction device uses electro-motor, the rotation axis of the electro-motor and the clockwork spring
The upper end connection of bar, electro-motor are connected by conducting wire with the timer, and built-in power is designed with the timer.
Preferably, being designed with limiting slot on the strip bulge of the shell, it is designed with the sliding rail plate corresponding
Locating part, the locating part includes spring and ball, and the locating part is fixed in the sliding rail plate bar-shaped trough, described
Spring one end is connected with the bar-shaped trough medial surface, and the other end is connected with the ball, the bar shaped of the ball and the shell
Raised lateral surface contact.
Preferably, being designed with conduit coupling in the pipeline opening, the conduit coupling uses flange arrangement.
Preferably, the friction member and the rotating vane are made using elastomeric material.
The beneficial effects of the present invention are：The Mainspring type is from the valve protection device that slows down, when in use due to the clockwork spring
Module is slidedly assemblied in the sliding rail plate, so user slides the clockwork spring module manually so that the clockwork spring mould
The rotation axis of block is separated with the connecting rod, and the impeller is rotated with the flowing of the pipeline inside modules fluid at this time,
It can carry out normal conveying effect；When user needs to close the flowing of the pipeline inside modules fluid, user's hand
Dynamic to slide the clockwork spring module, the clockwork spring module moves down so that the rotation axis is contacted with the connecting rod, due to the rotation
The floor design of shaft has cone tank, and friction member is designed with the cone tank, and the connecting rod top surface is designed as and the cone
The corresponding tapered end face of shape groove shape, so the rotation axis can be easily connected by user with the connecting rod；It is described
Rotation axis lower rotation under the drive of the connecting rod so that the clockwork spring starts to shrink at, when the clockwork spring is rotated to limit shape
During state, the rotation axis brakes the connecting rod, while the impeller stops rotating so that the pipeline inside modules
Fluid flow rate reduce, at this time user can labour-saving close valve；Since the braking procedure of the clockwork spring is one gradual
The process that increasing action power is made, therefore braking action of the impeller for fluid is milder, for the structure energy of the device
Enough play the role of buffer protection, be conducive to the reuse of the device and the saving of cost, while can also cause making for valve
Use longer life expectancy.
Brief description of the drawings
Fig. 1 is top view of the Mainspring type of the present invention from deceleration valve protection device.
Fig. 2 be Mainspring type of the present invention from deceleration valve protection device open when front view.
Fig. 3 be Mainspring type of the present invention from deceleration valve protection device close when front view.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples：
As shown in Figure 1, Figure 2, in Fig. 3 shown in embodiment, which is that one kind can reduce pipe from deceleration valve protection device
The flow velocity of road internal flow, so that required stress when reducing the unlatching and closing of valve；At the same time in the elasticity using clockwork
Structure absorption power, thus to device produce buffer protection effect device, it include clockwork spring module 1, vane module 2,
Sliding rail plate 3 and pipeline module 4；The clockwork spring module 1 includes shell, clockwork spring 12, rotation axis 11；The both ends of the shell are set
In respect of strip bulge, the bottom of the shell is designed with rotating hole；The clockwork spring 12 is installed on the enclosure, the clockwork spring
12 top for being centrally mounted at the rotating hole, the outer ring termination of the clockwork spring 12 are fixedly mounted on the medial surface of the shell
On, clockwork spring bar, the center-side of the lateral surface of the clockwork spring bar and the clockwork spring 12 are designed with the center termination of the clockwork spring 12
Head is fixedly connected；The rotation axis 11 is inserted into the inside of the shell by the rotating hole, the top surface of the rotation axis 11 with
The bottom surface of the clockwork spring bar is fixedly connected, and the floor design of the rotation axis 11 has cone tank, is designed with and rubs in the cone tank
Wipe part；The vane module 2 includes connecting rod 21 and impeller；21 top surface of connecting rod is designed as and the taper groove shape phase
The tapered end face 22 answered, the bottom of the connecting rod 21 is vertical with the center of the impeller to be fixed；The impeller rotation is assemblied in
Inside the pipeline module 4, rotating vane is designed with the impeller；Bar-shaped trough is designed with the sliding rail plate 3, it is described
Sliding rail plate 3 passes through the strip bulge slidable fit of the bar-shaped trough and 1 shell of clockwork spring module, the sliding rail plate
3 are fixedly mounted in the pipeline module 4；Patty pipeline is designed with the pipeline module 4, the patty pipeline is divided into
Upper and lower two layers, pipeline opening is respectively designed with the upper strata of the patty pipeline and lower floor；The inner ring surface of the patty pipeline
Diameter dimension is more than the outer diameter dimension of the impeller, and the Center of the patty pipeline has circular hole, the connecting rod 21
It is sequentially connected by the impeller inside the circular hole and the patty pipeline, the upper surface of the patty pipeline and institute
The bottom surface for stating sliding rail plate 3 is fixedly connected.
The Mainspring type from deceleration valve protection device when in use, since the clockwork spring module 1 is slidedly assemblied in the cunning
On dynamic rail guidance tape 3, so user slides the clockwork spring module 1 manually so that the rotation axis 11 of the clockwork spring module 1 with it is described
Connecting rod 21 separates, and the impeller is rotated with the flowing of 4 internal flow of pipeline module at this time, can carry out normal
Conveying acts on；When user needs to close the flowing of 4 internal flow of pipeline module, user slides the clockwork spring manually
Module 1, the clockwork spring module 1 move down so that the rotation axis 11 is contacted with the connecting rod 21, due to the rotation axis 11
Floor design has cone tank, and friction member is designed with the cone tank, and 21 top surface of connecting rod is designed as and the cone tank
The corresponding tapered end face 22 of shape, so the rotation axis 11 can be easily connected by user with the connecting rod 21；Institute
State the lower rotation under the drive of the connecting rod 21 of rotation axis 11 so that the clockwork spring 12 starts to shrink at, when the clockwork spring 12 revolves
When going to limiting condition, the rotation axis 11 brakes the connecting rod 21, while the impeller stops rotating so that institute
State the fluid flow rate inside pipeline module 4 to reduce, user being capable of labour-saving closing valve at this time；Due to the system of the clockwork spring 12
Dynamic process is the process that a gradual increasing action power is made, therefore braking action of the impeller for fluid is milder, right
It can play the role of buffer protection in the structure of the device, be conducive to the reuse of the device and the saving of cost, at the same time
Also it can make it that the service life of valve is longer.
As shown in Figure 1,1 indoor design of clockwork spring module has flow monitor, the flow monitor includes electricity
Magnetic-inductive device and timer；The electromagnetic induction device uses electro-motor, the rotation axis 11 of the electro-motor with it is described
The upper end connection of clockwork spring bar, electro-motor are connected by conducting wire with the timer, and built-in power is designed with the timer；
Its role is to be generated electricity by the rotation that deceleration is the clockwork spring bar so that the timer starts timing, calculates
Clockwork spring 12 starts the flow velocity size for the time drawing the fluids within pipes.
As shown in Figure 2 and Figure 3, limiting slot is designed with the strip bulge of the shell, is designed in the sliding rail plate 3
There is corresponding locating part, the locating part includes spring and ball, and the locating part is fixed on 3 bar-shaped trough of sliding rail plate
Interior, the spring one end is connected with the bar-shaped trough medial surface, and the other end is connected with the ball, the ball and the shell
Strip bulge lateral surface contact；Its role is to the running fix easy to the clockwork spring module 1, maloperation is prevented.
As shown in Figure 1, Figure 2, Figure 3 shows, conduit coupling 41 is designed with the pipeline opening, the conduit coupling 41 uses
Flange arrangement；Its role is to easy to by the pipeline module 4 with needing pipeline to be used and valve to be attached.
As shown in Figure 1, Figure 2, Figure 3 shows, the friction member and the rotating vane are made using elastomeric material；Its role is to
Strengthen the braking effect of the friction member and the service life of the rotating vane.
The foregoing is merely the preferred mode of the present invention, it is not intended to limit the invention, it is all in the spiritual and former of the present invention
Within then, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.
Claims (5)
1. for a kind of Mainspring type from the valve protection device that slows down, it includes clockwork spring module (1), vane module (2), sliding rail plate
(3) and pipeline module (4), it is characterised in that：The clockwork spring module (1) includes shell, clockwork spring (12), rotation axis (11)；It is described
The both ends of shell are designed with strip bulge, and the bottom of the shell is designed with rotating hole；The clockwork spring (12) is installed on described outer
Inside shell, peace is fixed in the top for being centrally mounted at the rotating hole of the clockwork spring (12), the outer ring termination of the clockwork spring (12)
On the medial surface of the shell, clockwork spring bar, the outside of the clockwork spring bar are designed with the center termination of the clockwork spring (12)
Face is fixedly connected with the center termination of the clockwork spring (12)；The rotation axis (11) is inserted into the shell by the rotating hole
Inside, the top surface of the rotation axis (11) are fixedly connected with the bottom surface of the clockwork spring bar, the floor design of the rotation axis (11)
There is cone tank, friction member is designed with the cone tank；The vane module (2) includes connecting rod (21) and impeller；The company
Extension bar (21) top surface is designed as tapered end face (22) corresponding with the taper groove shape, the bottom of the connecting rod (21) and institute
The center for stating impeller is vertically fixed；The impeller rotation is assemblied in pipeline module (4) inside, and rotation is designed with the impeller
Rotating vane piece；Be designed with bar-shaped trough on the sliding rail plate (3), the sliding rail plate (3) by the bar-shaped trough with it is described
The strip bulge slidable fit of clockwork spring module (1) shell, the sliding rail plate (3) are fixedly mounted on the pipeline module (4)
On；Patty pipeline is designed with the pipeline module (4), the patty pipeline is divided into two layers up and down, the patty pipe
Pipeline opening is respectively designed with the upper strata in road and lower floor；The inner ring surface diameter size of the patty pipeline is more than the impeller
Outer diameter dimension, the Center of the patty pipeline have circular hole, and the connecting rod (21) passes through the circular hole and the circle
The impeller inside cheese pipeline is sequentially connected, the upper surface of the patty pipeline and the bottom of the sliding rail plate (3)
Face is fixedly connected.
The valve protection device 2. Mainspring type according to claim 1 slows down certainly, it is characterised in that：The clockwork spring module (1)
Indoor design has flow monitor, and the flow monitor includes electromagnetic induction device and timer；The electromagnetic induction
Device uses electro-motor, and the rotation axis (11) of the electro-motor is connected with the upper end of the clockwork spring bar, and electro-motor passes through
Conducting wire is connected with the timer, and built-in power is designed with the timer.
The valve protection device 3. Mainspring type according to claim 1 slows down certainly, it is characterised in that：The bar shaped of the shell is convex
Limiting slot is designed with rising, corresponding locating part is designed with the sliding rail plate (3), the locating part includes spring and rolling
Pearl, the locating part are fixed in the sliding rail plate (3) bar-shaped trough, and the spring one end connects with the bar-shaped trough medial surface
Connect, the other end is connected with the ball, and the ball is contacted with the strip bulge lateral surface of the shell.
The valve protection device 4. Mainspring type according to claim 1 slows down certainly, it is characterised in that：Designed in the pipeline opening
There is conduit coupling (41), the conduit coupling (41) uses flange arrangement.
The valve protection device 5. Mainspring type according to claim 1 slows down certainly, it is characterised in that：The friction member and described
Rotating vane is made using elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174240.3A CN107939985B (en) | 2017-11-22 | 2017-11-22 | Mainspring type is from slowing down valve protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174240.3A CN107939985B (en) | 2017-11-22 | 2017-11-22 | Mainspring type is from slowing down valve protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939985A true CN107939985A (en) | 2018-04-20 |
| CN107939985B CN107939985B (en) | 2019-04-23 |
Family
ID=61930746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174240.3A Active CN107939985B (en) | 2017-11-22 | 2017-11-22 | Mainspring type is from slowing down valve protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939985B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591500A (en) * | 2018-07-18 | 2018-09-28 | 天津万枫仪表有限公司 | Special alloy regulating valve applied to high-pressure minimum flow working condition |
| CN113090764A (en) * | 2021-03-26 | 2021-07-09 | 山东思达特测控设备有限公司 | Dynamic resistance device structure for hot water pipeline |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB282398A (en) * | 1926-12-18 | 1928-02-23 | D App Electr Fr Sauter S A Fab | Improvements in electric remote-control apparatus for stop valves |
| GB832770A (en) * | 1955-10-07 | 1960-04-13 | Robertshaw Fulton Controls Co | A timer control device for controlling the sequential operation of control members formed by fluid control valves or electric switches |
| CN2142521Y (en) * | 1992-07-10 | 1993-09-22 | 江兴家 | Automatic timing shut-off device for gas valve |
| CN1553069A (en) * | 2003-05-26 | 2004-12-08 | 董晓青 | Quantitative valves |
| CN205839926U (en) * | 2016-07-11 | 2016-12-28 | 朱又波 | A kind of rain dirt part flow arrangement |
-
2017
- 2017-11-22 CN CN201711174240.3A patent/CN107939985B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB282398A (en) * | 1926-12-18 | 1928-02-23 | D App Electr Fr Sauter S A Fab | Improvements in electric remote-control apparatus for stop valves |
| GB832770A (en) * | 1955-10-07 | 1960-04-13 | Robertshaw Fulton Controls Co | A timer control device for controlling the sequential operation of control members formed by fluid control valves or electric switches |
| CN2142521Y (en) * | 1992-07-10 | 1993-09-22 | 江兴家 | Automatic timing shut-off device for gas valve |
| CN1553069A (en) * | 2003-05-26 | 2004-12-08 | 董晓青 | Quantitative valves |
| CN205839926U (en) * | 2016-07-11 | 2016-12-28 | 朱又波 | A kind of rain dirt part flow arrangement |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591500A (en) * | 2018-07-18 | 2018-09-28 | 天津万枫仪表有限公司 | Special alloy regulating valve applied to high-pressure minimum flow working condition |
| CN113090764A (en) * | 2021-03-26 | 2021-07-09 | 山东思达特测控设备有限公司 | Dynamic resistance device structure for hot water pipeline |
| CN113090764B (en) * | 2021-03-26 | 2022-05-20 | 山东思达特测控设备有限公司 | Dynamic resistance device structure for hot water pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107939985B (en) | 2019-04-23 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190326 Address after: 312500 East Xinchang Avenue 819, Xinchang County, Shaoxing City, Zhejiang Province Applicant after: Zhejiang Xianghe Valve Co., Ltd. Address before: 250300 No. 5001 Haitang Road, Changqing District, Jinan City, Shandong Province Applicant before: Jie Zhongmin |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |