CN208564505U - A kind of floating type automatic constant pressure puts set pressure device - Google Patents
A kind of floating type automatic constant pressure puts set pressure device Download PDFInfo
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- CN208564505U CN208564505U CN201821212092.XU CN201821212092U CN208564505U CN 208564505 U CN208564505 U CN 208564505U CN 201821212092 U CN201821212092 U CN 201821212092U CN 208564505 U CN208564505 U CN 208564505U
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- pressure
- core assembly
- outer housing
- bleeding
- type automatic
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- 238000007667 floating Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000000740 bleeding effect Effects 0.000 claims description 30
- 230000003028 elevating effect Effects 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 8
- 210000005056 cell body Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
本实用新型提供了一种浮动式自动定压放套压装置，解决现有装置存在劳动成本高、放套压时活塞打开迟缓和座封不严、密封件对中困难、放套压与常规作业无法自由转换的问题，该装置包括外壳体和放压阀芯组件，外壳体侧壁和下端设有通气口，且该壳外体内壁的下端为锥状体；放压阀芯组件通过提升组件在升、降过程中与外壳体之间形成密封状态或形成环形通道；放压阀芯组件在下降到最低端时，放压阀芯组件下端锥面与外壳体内锥面紧密接触密封后，球形浮动活塞在重力和套管气体作用下交替上、下浮动，实现密封和泄压过程，通过泄压孔将套管汽排出，达到自动浮动放压目的；放压阀芯组件在提升脱离最低端时，外壳体与放压阀芯组件之间形成环形通道，实现常规作业自由转换。
The utility model provides a floating type automatic constant pressure releasing and casing pressure device, which solves the problems of the existing device such as high labor cost, slow opening of the piston and lax seat sealing when releasing casing pressure, difficulty in centering of the seals, and the difference between releasing casing pressure and conventional pressure. The problem that the operation cannot be freely converted, the device includes an outer casing and a pressure relief valve core assembly, the side wall and the lower end of the outer casing are provided with air vents, and the lower end of the inner wall of the outer casing is a cone; the pressure relief valve core assembly is lifted by lifting The assembly forms a sealed state or an annular channel with the outer casing during the lifting and lowering process; when the pressure relief valve core assembly is lowered to the lowest end, after the conical surface of the lower end of the pressure relief valve core assembly and the inner cone surface of the outer casing are in close contact and sealing, The spherical floating piston floats up and down alternately under the action of gravity and casing gas to realize the process of sealing and pressure relief, and the casing steam is discharged through the pressure relief hole to achieve the purpose of automatic floating and pressure relief; At the end of the operation, an annular channel is formed between the outer casing and the pressure relief valve core assembly, so as to realize the free conversion of conventional operations.
Description
Technical field
The utility model more particularly to a kind of floating type automatic constant pressure put set pressure device.
Background technique
At present in land oil recovery oil pumping process, crude oil liquid is when rising, with the reduction of pressure, in dissolving crude oil
Various gases constantly overflow expansion and are released in pit shaft, will be to oil well pump shape when gas gathers a certain amount of in pit shaft
Cheng Suo reduces pump efficiency, or even without yield, it is necessary to carry out putting casing pressure, could maintain normally to produce, existing solution is to pass through
It manually bleeds off pressure or bleeds off pressure automatically, but all there is shortcoming and defect, for the deficiency for solving manually to bleed off pressure with bleeding off pressure automatically, specially
Benefit number discloses a kind of floating type automatic constant pressure for CN206693987U and puts set pressure device, mainly uses floating type automatic adjustment
Bleed off pressure the design that aperture meets different pressures decentralization set laminated structure, but there is also certain deficiencies for the device: 1, the device into
Row pipeline purging mixes heat and takes out spool when well-flushing and must use fishing tool, cause the problem that labour cost is high；2, plunger piston is transported
The retardation of walking is stagnant, and slow, setting not tight or difficult seal components problem is opened when causing to put casing pressure；3, cannot achieve put casing pressure with
Routine work is freely converted；Therefore, based on the above issues the application to the floating type automatic constant pressure put set pressure device done into
The improvement of one step.
Summary of the invention
The utility model provides a kind of floating type automatic constant pressure and puts set pressure device, solves floating current formula automatic constant pressure and puts
It is high to cover labour cost existing for pressure device, slow, the setting not tight and seal components of piston opening are difficult when putting casing pressure and put
The problem of casing pressure and routine work can not be converted freely.
To solve the above-mentioned problems, this application provides a kind of floating type automatic constant pressures to put set pressure device, including outer housing
(1) core assembly (2) two parts are bled off pressure and；The lower end of the outer housing (1) and side wall are equipped with blow vent, and the outer housing
(1) inner wall lower end is cone；It is described to bleed off pressure the tubular body that core assembly (2) are upper and lower end opening, and this bleeds off pressure spool group
Part (2) forms shape in the outer housing (1) and between the outer housing (1) by lifting assembly (3) liftable setting
Channel is circularized, this, which bleeds off pressure, is equipped with spherical floating piston (21) in core assembly (2), this bleeds off pressure core assembly (2) close to lower end
It is set on the inner wall of aperture position end toper face (24), the spherical shape floating piston (21) under the effect of gravity can be with the tapered surface
(24) surface contacts, and the side wall for bleeding off pressure core assembly (2) is equipped with multiple groups relief hole (22), under which is located at
The top in end toper face (24), the lower ending opening for bleeding off pressure core assembly (2) and the outer housing (1) inner wall lower end lead to
Port docking, and the lower end for bleeding off pressure core assembly (2) is equipped with corresponding with the outer housing (1) lower end cone and can closely connect
The tapered surface structure of touching；
The lifting assembly (3) includes elevating lever (31) and fixing seat (32), and the fixing seat (32) is arranged in outer housing
(1) upper end, the free end of the elevating lever (31) pass through the fixing seat (32) and open with the upper end for bleeding off pressure core assembly (2)
Mouth connection, the elevating lever (31) can drive in fixing seat (32) interior lifting moving and bleed off pressure core assembly (2) in outer housing (1)
Interior lifting moving.
As the preferred embodiment of the application, the surface for bleeding off pressure the tapered surface (24) on core assembly (2) inner wall can be
Plane or arc surface (241).
As the preferred embodiment of the application, it is threadedly coupled between the elevating lever (31) and the fixing seat (32).
As the preferred embodiment of the application, the upper end opening clamping of the fixing seat (32) and the outer housing (1) or spiral shell
Line connection or rivet interlacement.
As the preferred embodiment of the application, the free end of the elevating lever (31) bleeds off pressure the upper of core assembly (2) with described
End opening is connected by pin (23)；Outer housing (1) the lower end cone bleeds off pressure end toper under core assembly (2) with described
The contact surface of face structure is equipped with sealing paste (25)；The lifting assembly (3) is by artificial manual actuation or passes through motor (35)
Driving.
As the preferred embodiment of the application, the lower end cone of the outer housing (1) and/or described core assembly is bled off pressure
(2) lower end tapered surface structure is equipped with replaceable blow vent and/or the bore of openings of sizes adjusts component, the bore adjustment group
Part includes the hollow cylinder (40) of multiple caliber size and buckles (41), under the hollow cylinder (40) and the outer housing (1)
End blow vent or core assembly (2) lower ending opening that bleeds off pressure are corresponding, and the buckle (41) is used for hollow cylinder (40) are fixed
In the blow vent or opening.
Compared with prior art, the device overall structure is more simple, releasing pressure automatically effect is more preferable, meanwhile, it can be according to need
Height is improved work efficiency, is also saved manually-operated at any time to casing pressure and the free conversion of routine work process progress is put
Labour cost.
Detailed description of the invention
Fig. 1 be the utility model embodiment one provide a kind of floating type automatic constant pressure put set pressure device front view structure show
It is intended to；
Fig. 2 is the front view structure that the floating type automatic constant pressure of another kind that the utility model embodiment one provides puts set pressure device
Schematic diagram；
Fig. 3 is the outer housing lower ending opening that the utility model embodiment one provides and the company for bleeding off pressure core assembly lower ending opening
Connect the structural schematic diagram that the conical surface is equipped with sealing paste；
Fig. 4 is the structural schematic diagram that the lifting assembly that the utility model embodiment one provides passes through motor control；
Fig. 5 is the structural representation for bleeding off pressure core assembly that the tapered surface that the utility model embodiment two provides is arc surface
Figure；
Fig. 6 is that the lower end blow vent for the outer tube that the utility model embodiment three provides is equipped with the knot of bore adjustment component
Structure schematic diagram.
Appended drawing reference
Outer housing 1, A blow vent 11, B blow vent 12 bleed off pressure core assembly 2, spherical floating piston 21, relief hole 22, pin
Nail 23, tapered surface 24, arc surface 241, sealing paste 25, lifting assembly 3, elevating lever 31, connector 311, fixing seat 32, filling container
Assembly 33, handwheel 34, motor 35, hollow cylinder 40, buckle 41.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing to this
The embodiment of utility model is described in detail.
Embodiment 1:
It present embodiments provides a kind of floating type automatic constant pressure and puts set pressure device, which includes outer housing 1 and pressure release valve
2 two parts of core assembly, referring to Fig. 1-2, the lower end of the outer housing 1 and side wall are equipped with blow vent, and the inner wall of the outer housing 1
Lower end is cone, and blow vent is arranged in the cone top part of the cone, in the present embodiment, the ventilation on 1 side wall of outer housing
As exhaust outlet mouthful in pressure release, in routine work as air inlet, the blow vent of lower end in pressure release as air inlet,
In routine work as gas outlet.
It is described to bleed off pressure the tubular body that core assembly 2 is upper and lower end opening, and this bleeds off pressure core assembly 2 and passes through lifting assembly 3
Liftable setting is foring hollow cavity in the outer housing 1 and between the outer housing 1, this bleeds off pressure the pipe of core assembly 2
It is intracavitary to be equipped with spherical floating piston 21, and this bleeds off pressure inner wall of the core assembly 2 close to lower ending opening position and is equipped with tapered surface 24,
The present embodiment preferably tapered surface 24 is that the clinoplain bled off pressure on 2 inner wall of core assembly is arranged in, the spherical shape floating piston
21 can be in close contact under the effect of gravity with the tapered surface；The side wall for bleeding off pressure core assembly 2 is equipped with multiple groups relief hole 22,
The relief hole 22 is located at the top of tapered surface 24, the lower ending opening for bleeding off pressure core assembly 2 and the 1 inner wall lower end of outer housing
Blow vent docking, and the lower end for bleeding off pressure core assembly 2 be equipped with it is corresponding and can closely connect with the 1 lower end cone of outer housing
The tapered surface structure of touching.
The lifting assembly 3 includes elevating lever 31 and fixing seat 32, and the fixing seat 32 is clamped or is threadedly coupled or rivet
It is connected at the upper end opening of the outer housing 1, the preferably described fixing seat 32 of the present embodiment is connected to the upper end of the outer housing 1
Opening, the free end of the elevating lever 31 are equipped with the connector 311 of " I " fonts, and described bleed off pressure sets on 2 side wall of core assembly
There is pin hole, the connector 311 passes through fixing seat 32 with elevating lever 31 and the upper end opening for bleeding off pressure core assembly 2 passes through pin
23 connection of nail, the elevating lever 31 can drive when lifting moving in fixing seat 32 to be bled off pressure core assembly 2 and goes up and down in outer housing 1
It is mobile, in the present embodiment, it is threadedly coupled between the preferably described elevating lever 31 and the fixing seat 32.
In the present embodiment, the top of the fixing seat 32 is filling container assembly 33, and the elevating lever 31 passes through the filling container
Assembly 33 and fixing seat 32 are connect with core assembly 2 is bled off pressure.
In the present embodiment, the arrow in Fig. 1 is indicated during the pressure relief process, the flow direction of gas.
Further, in order to be in close contact 1 lower end of outer housing with the connection conical surface for bleeding off pressure 2 lower end of core assembly, this reality
The preferably described 1 lower end cone of outer housing of example is applied to be equipped with the contact surface for bleeding off pressure 2 lower end tapered surface structure of core assembly
Sealing paste 25, the sealing note can be provided only on 1 lower end cone of outer housing, can also be provided only on and bleed off pressure 2 lower end of core assembly
In tapered surface structure, can also both be arranged simultaneously, the present embodiment is preferably arranged simultaneously, referring to Fig. 3, is being kept away by the sealing paste 25
Also both avoidable hard contact causes the abrasion to pipe end while exempting from gas leakage, and then influences pressure release effect.
Further, in the present embodiment, the lifting assembly 3 drives by artificial manual actuation or by motor 35,
Specific driving method the present embodiment does not further limit, according to the actual situation or depending on needs, if driven manually by artificial
Handwheel 34 can be arranged in the other end of elevating lever 31 in dynamic lifting assembly 3, can be in elevating lever 31 if driven by motor 35
Other end setting drives the bearing of axis connection with motor 35, referring to fig. 4, passes through motor for lifting assembly 3 provided in this embodiment
The structural schematic diagram of 35 drivings.
Illustrate how the device uses by taking manual actuation lifting assembly 3 as an example below, by 1 lower end blow vent of outer housing
It is defined as A blow vent 11, the blow vent of 1 side wall of outer housing is defined as B blow vent 12, in use, the hand of rotation and lifting bar 31
Wheel 34 makes elevating lever 31 move up and down in 32 inner seat of fixing seat, and due to being limited by pin 23, elevating lever 31 bleeds off pressure drive
Core assembly 2 moves up and down in outer housing 1, when bleeding off pressure core assembly 2 and moving downward, bleeds off pressure the lower end of core assembly 2
Opening is docked with the lower end blow vent (A blow vent 11) of outer housing 1, meanwhile, bleed off pressure the lower end tapered surface structure of core assembly 2
It is in close contact with the lower end cone of outer housing 1, so that device, which is in, bleeds off pressure state, calms the anger body from A blow vent in pit shaft inner sleeve
11 enter, and when pressure is greater than the set value (spherical 21 weight of floating piston), spherical floating piston 21 starts to float, and gas is from letting out
Pressure hole 22 is released, and the annular space by bleeding off pressure core assembly 2 and outer housing 1 is expelled to production tree tubing system to B exhaust outlet,
It eventually enters into and adopts defeated system, conversely, when the weight of spherical floating piston 21 is greater than from the air pressure that A blow vent 11 enters, it is spherical
Floating piston 21 declines under the effect of gravity and contacts with tapered surface 24 stops pressure release at this time；It carries out adopting defeated pipeline if necessary normal
Rule operation (pipeline purging, well-flushing, mix heat etc.), 31 handwheel 34 of rotation and lifting bar transports elevating lever 31 above and below 32 inner seat of fixing seat
Dynamic, due to being limited by pin 23, drive is bled off pressure core assembly 2 in outer housing 1 and moved up and down by elevating lever 31, when putting
When pressure valve core assembly 2 moves upward to the top, bleeds off pressure core assembly 2 and outer housing 1 is detached from, while device is in and pit shaft ring
The direct connected state in shape space, bleeds off pressure that core assembly 2 is ineffective, and B blow vent 12 converts the air inlet of routine work, A ventilation
Mouth 11 converts the exhaust outlet of routine works, which will turn into the interface channel of routine work.
In summary, bled off pressure in the present embodiment core assembly 2 by lifting assembly 3 during ascending, descending with outer housing 1 it
Between formed sealing state or formed circular passage, bleed off pressure core assembly 2 when dropping to least significant end, bleed off pressure 2 lower end of core assembly
After the conical surface and 1 inner conical surface of outer housing are in close contact sealing, spherical floating piston 21 is alternately upper under gravity and sheath gas effect,
Lower floating realizes sealing and pressure leak process, casing vapour is discharged by relief hole 22, reaches automatic floating and bleeds off pressure purpose；It bleeds off pressure
Core assembly 2 bleeds off pressure end cone face under core assembly 2 and separates with 1 inner conical surface of outer housing when promoting disengaging least significant end, outer housing 1
Circular passage is formed between core assembly 2 with bleeding off pressure, and realizes that routine work is freely converted.
Therefore, the improved device compared with prior art so that device overall structure is more simple, releasing pressure automatically effect
Fruit is more preferable, meanwhile, it can be improved work efficiency as needed at any time to casing pressure and the free conversion of routine work process progress is put
Height also saves manually-operated labour cost.
Embodiment 2:
Compared with Example 1, in order to make spherical floating piston 21 and the 24 bigger leakproofness of outer surface contact area of tapered surface
More preferably, the preferably described tapered surface 24 is 241 structure of arc surface, referring to Fig. 5.
Embodiment 3:
Compared with embodiment 1 or 2, difference in this case is that, in order to which the ventilation of 1 lower end of outer housing can be adjusted as needed
Mouthful and/or bleed off pressure the size of 2 lower ending opening of core assembly, the lower end cone of the preferably described outer housing 1 and/or described bleed off pressure
The lower end tapered surface structure of core assembly 2 is equipped with replaceable blow vent and/or the bore of openings of sizes adjusts component, this implementation
Example in, the bore adjust component include multiple caliber size hollow cylinder 40 and buckle 41, the hollow cylinder 40 with it is described
1 lower end blow vent of outer housing or 2 lower ending opening of core assembly that bleeds off pressure are corresponding, and the buckle 41 is arranged by shaft described
1 lower end blow vent of outer housing or the bottom for bleeding off pressure 2 lower ending opening of core assembly, are used to hollow cylinder 40 being fixed on institute
It states in blow vent or opening.
In use, may be selected to need as needed the mouth hollow cylinder 40 of size be mounted on outer housing lower end blow vent and/
Or 2 lower ending opening position of core assembly is bled off pressure to realize the adjustment of caliber size, it is on the lower end blow vent of outer tube referring to Fig. 6
Structural schematic diagram equipped with bore adjustment component shows in the structure for bleeding off pressure 2 lower ending opening of core assembly installation bore adjustment component
It is similar to be intended to this figure, therefore is not indicated in figure.
The above content is combine specific embodiment further detailed description of the utility model, and it cannot be said that
The specific implementation of the utility model is only limited to these instructions.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, all should be considered as belonging to
In the protection scope of the utility model.
Claims (10)
1. a kind of floating type automatic constant pressure puts set pressure device, which is characterized in that including outer housing (1) and bleed off pressure core assembly (2)
Two parts；The lower end of the outer housing (1) and side wall are equipped with blow vent, and the inner wall lower end of the outer housing (1) is cone；
It is described bleed off pressure core assembly (2) be upper and lower end opening tubular body, and this bleed off pressure core assembly (2) by lifting assembly (3) can
The setting of lifting forms to form circular passage in the outer housing (1) and between the outer housing (1), this bleeds off pressure spool group
Spherical floating piston (21) is equipped in part (2), this bleeds off pressure core assembly (2) and sets end cone on the inner wall of lower ending opening position
Shape face (24), the spherical shape floating piston (21) can contact under the effect of gravity with tapered surface (24) surface, the pressure release valve
The side wall of core assembly (2) is equipped with multiple groups relief hole (22), which is located at the top of lower end tapered surface (24), described
The lower ending opening for bleeding off pressure core assembly (2) is docked with the blow vent of the outer housing (1) inner wall lower end, and this bleeds off pressure core assembly
(2) lower end is equipped with tapered surface structure that is corresponding with the outer housing (1) lower end cone and being in close contact；
The lifting assembly (3) includes elevating lever (31) and fixing seat (32), and the fixing seat (32) is arranged in outer housing (1)
Upper end, the free end of the elevating lever (31) passes through the fixing seat (32) and the upper end opening for bleeding off pressure core assembly (2) connects
It connects, the elevating lever (31) can drive in fixing seat (32) interior lifting moving bleeds off pressure core assembly (2) liter in outer housing (1)
Drop movement.
2. floating type automatic constant pressure as described in claim 1 puts set pressure device, which is characterized in that described to bleed off pressure core assembly
(2) surface of the tapered surface on inner wall (24) can be plane or arc surface (241).
3. floating type automatic constant pressure as claimed in claim 1 or 2 puts set pressure device, which is characterized in that the elevating lever (31)
It is threadedly coupled between the fixing seat (32).
4. floating type automatic constant pressure as claimed in claim 1 or 2 puts set pressure device, which is characterized in that the fixing seat (32)
With the clamping of the upper end opening of the outer housing (1) or be threadedly coupled or rivet interlacement.
5. floating type automatic constant pressure as claimed in claim 3 puts set pressure device, which is characterized in that the fixing seat (32) and institute
The upper end opening for stating outer housing (1) is clamped or is threadedly coupled or rivet interlacement.
6. floating type automatic constant pressure as claimed in claim 1 or 2 puts set pressure device, which is characterized in that the elevating lever (31)
Free end and the upper end opening for bleeding off pressure core assembly (2) connect by pin (23)；Outer housing (1) lower end cone cell
Body and the contact surface for bleeding off pressure core assembly (2) lower end tapered surface structure are equipped with sealing paste (25)；The lifting assembly (3)
It is driven by artificial manual actuation or by motor (35).
7. floating type automatic constant pressure as claimed in claim 3 puts set pressure device, which is characterized in that the elevating lever (31) from
It is connect with the upper end opening for bleeding off pressure core assembly (2) by pin (23) by end；Outer housing (1) the lower end cone with
The contact surface for bleeding off pressure core assembly (2) lower end tapered surface structure is equipped with sealing paste (25)；The lifting assembly (3) passes through
Artificial manual actuation is driven by motor (35).
8. floating type automatic constant pressure as claimed in claim 4 puts set pressure device, which is characterized in that the elevating lever (31) from
It is connect with the upper end opening for bleeding off pressure core assembly (2) by pin (23) by end；Outer housing (1) the lower end cone with
The contact surface for bleeding off pressure core assembly (2) lower end tapered surface structure is equipped with sealing paste (25)；The lifting assembly (3) passes through
Artificial manual actuation is driven by motor (35).
9. floating type automatic constant pressure as claimed in claim 5 puts set pressure device, which is characterized in that the elevating lever (31) from
It is connect with the upper end opening for bleeding off pressure core assembly (2) by pin (23) by end；Outer housing (1) the lower end cone with
The contact surface for bleeding off pressure core assembly (2) lower end tapered surface structure is equipped with sealing paste (25)；The lifting assembly (3) passes through
Artificial manual actuation is driven by motor (35).
10. floating type automatic constant pressure as claimed in claim 1 or 2 puts set pressure device, which is characterized in that the outer housing (1)
Lower end cone and/or the lower end tapered surface structure for bleeding off pressure core assembly (2) be equipped with and replaceable blow vent and/or open
The bore of mouth size adjusts component, which adjusts the hollow cylinder (40) and buckle (41) that component includes multiple caliber size,
The hollow cylinder (40) is corresponding with the outer housing (1) lower end blow vent or core assembly (2) lower ending opening that bleeds off pressure, institute
Buckle (41) are stated for hollow cylinder (40) to be fixed in the blow vent or opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212092.XU CN208564505U (en) | 2018-07-27 | 2018-07-27 | A kind of floating type automatic constant pressure puts set pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212092.XU CN208564505U (en) | 2018-07-27 | 2018-07-27 | A kind of floating type automatic constant pressure puts set pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564505U true CN208564505U (en) | 2019-03-01 |
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|---|---|---|---|
| CN201821212092.XU Active CN208564505U (en) | 2018-07-27 | 2018-07-27 | A kind of floating type automatic constant pressure puts set pressure device |
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| Country | Link |
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| CN (1) | CN208564505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145003A (en) * | 2019-06-18 | 2019-08-20 | 狼浴厨卫有限公司 | A dual gear flushing valve |
-
2018
- 2018-07-27 CN CN201821212092.XU patent/CN208564505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145003A (en) * | 2019-06-18 | 2019-08-20 | 狼浴厨卫有限公司 | A dual gear flushing valve |
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