CN105402447A - Miniature slowly-closed check valve - Google Patents
Miniature slowly-closed check valve Download PDFInfo
- Publication number
- CN105402447A CN105402447A CN201510924977.7A CN201510924977A CN105402447A CN 105402447 A CN105402447 A CN 105402447A CN 201510924977 A CN201510924977 A CN 201510924977A CN 105402447 A CN105402447 A CN 105402447A
- Authority
- CN
- China
- Prior art keywords
- valve
- guide sleeve
- plate
- miniature
- upper cover
- 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
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention provides a miniature slowly-closed check valve which comprises a valve body. A right-angled Z-shaped valve seat is arranged in the valve body. An adjusting hole is formed in the portion, above the valve seat, of the side wall of the valve body and internally provided with a guide sleeve. An upper cover is arranged above the adjusting hole. A pressing board is arranged on the inner side of the upper cover. One end of a valve rod penetrates a valve plate and then extends into a center hole of the valve seat and the other end of the valve rod sequentially penetrates the guide sleeve and a cushion board. An elastic piece A is arranged between the valve plate and the guide sleeve. An elastic piece B is arranged between the cushion board and the pressing board. The miniature slowly-closed check valve has the beneficial effects that by the adoption of the technical scheme, the check valve can be slowly closed, the water hammer phenomenon is avoided, and the service life of equipment or a pipeline is prolonged.
Description
Technical field
The invention belongs to valve field, especially relate to a kind of miniature buffer valve.
Background technique
The safety check of general small-bore (DN40 and following) only has speed and closes function, and major part realizes closing under the pressure effect of backwater, so just inevitably produce water hammer and cause pipe vibration, cause the damage of equipment or pipeline, produce noise.This just needs a kind of check valve that can realize Slow Close.
Summary of the invention
In view of this, the present invention is intended to propose a kind of miniature buffer valve.
Technological scheme of the present invention is achieved in that
A kind of miniature buffer valve, comprise valve body, the valve seat of ┗ ┓ shape is provided with in described valve body, described body wall above described valve seat has adjustment hole, guide sleeve is provided with in described adjustment hole, upper cover is provided with above described adjustment hole, the inner side of described upper cover is provided with pressing plate, one end of described valve rod is through the center hole stretching into described valve seat after valve plate, its the other end is successively through described guide sleeve and backing plate, be provided with elastic component A between described valve plate and described guide sleeve, between described backing plate and described pressing plate, be provided with elastic component B.
Further, the two ends of described valve rod are respectively provided with a limit stoper, respectively by spacing for described valve plate outside corresponding described limit stoper, by spacing for described backing plate inside corresponding described limit stoper.
Further, described limit stoper is baffle plate, setscrew nut or step.
Further, the center hole upper-end surface of described valve seat and the lower end surface of described valve plate are for contacting sealing surface.
Further, also comprise adjusting screw, one end of described adjusting screw is stretched into from described upper cover outside, and contacts with described pressing plate.
Further, between described guide sleeve and described adjustment hole inwall, between described guide sleeve and described valve rod, all seal ring is provided with.
The advantage that the present invention has and good effect are: owing to adopting technique scheme, can realize the Slow Close of safety check, avoid producing water hammer, the life-span of extension device or pipeline.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
In figure:
1, valve body 2, valve plate 3, elastic component A4, valve seat
5, guide sleeve 6, backing plate 7, pressing plate 8, adjusting screw
9, upper cover 10, elastic component B11, valve rod
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention; those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite; all belong to the scope of protection of the invention, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when describing the embodiment of the present invention in detail; for ease of explanation; the sectional drawing of indication device part structure can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.In addition, the three-dimensional space of length, width and height should be comprised in actual fabrication.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood by concrete condition.
As shown in Figure 1, the present invention includes valve body 1, the valve seat 4 of ┗ ┓ shape is provided with in described valve body 1, described valve body 1 sidewall above described valve seat 4 has adjustment hole, guide sleeve 5 is provided with in described adjustment hole, upper cover 9 is provided with above described adjustment hole, the inner side of described upper cover 9 is provided with pressing plate 7, one end of described valve rod 11 is through the center hole stretching into described valve seat after valve plate 2, its the other end is successively through described guide sleeve 5 and backing plate 6, be provided with elastic component A3 between described valve plate 2 and described guide sleeve 5, between described backing plate 6 and described pressing plate 7, be provided with elastic component B10.Described elastic component A3 and elastic component B10 is spring.
The two ends of described valve rod 11 are respectively provided with a limit stoper, respectively by spacing for described valve plate 2 outside corresponding described limit stoper step, by spacing for described backing plate 6 inside corresponding described limit stoper setscrew nut.
The center hole upper-end surface of described valve seat and the lower end surface of described valve plate 2 are for contacting sealing surface.
Between described guide sleeve 5 and described adjustment hole inwall, between described guide sleeve 5 and described valve rod 11, be all provided with seal ring.
During water supply, described valve plate 2 drives described valve rod 11 to move upward overcome the effect of elastic component A3 and elastic component B10 under hydraulic pressure effect under, valve slowly opens normal water supply.
When cutting off the water, the sealing surface that described valve plate 2 is affixed to rapidly valve seat 4 under the effect of elastic component A3 realizes sealing (now, the connection of valve plate 2 and valve rod 11 is for being flexibly connected, and valve plate 2 can unrestricted motion on valve rod 11), stop most of water to reflux, avoid the formation of water hammer; Valve rod 11 is at the moved downward of elastic component B10 simultaneously, because valve rod 11 moves downward the frictional force that need overcome seal ring and micro-resistance (having certain gap between backing plate 6 and upper cover 9) of air between backing plate 6 and guide sleeve 5, valve rod 11 slowly moves downward until engage to be formed with the sealing surface of valve seat 4 with valve plate 2 and seal, move downward in process at valve rod 11, because valve rod 11 and the endoporus of valve plate 2 have certain gap, recirculation water can flow to import pressure release by this gap, weaken the impact force of water hammer, avoid the generation of Guan Zhen.
Also comprise adjusting screw 8, one end of described adjusting screw 8 is stretched into from described upper cover 9 outside, and contacts with described pressing plate 7.The time of Slow Close can be set with the requirement of satisfied different operating mode by the adjustment of adjusting screw 8.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (6)
1. a miniature buffer valve, comprise valve body (1), it is characterized in that: the valve seat (4) being provided with ┗ ┓ shape in described valve body (1), described valve body (1) sidewall of described valve seat (4) top has adjustment hole, guide sleeve (5) is provided with in described adjustment hole, upper cover (9) is provided with above described adjustment hole, the inner side of described upper cover (9) is provided with pressing plate (7), one end of described valve rod (11) is through the center hole stretching into described valve seat after valve plate (2), its the other end is successively through described guide sleeve (5) and backing plate (6), elastic component A (3) is provided with between described valve plate (2) and described guide sleeve (5), elastic component B (10) is provided with between described backing plate (6) and described pressing plate (7).
2. miniature buffer valve according to claim 1, it is characterized in that: the two ends of described valve rod (11) are respectively provided with a limit stoper, respectively by spacing for described valve plate (2) outside corresponding described limit stoper, by spacing for described backing plate (6) inside corresponding described limit stoper.
3. miniature buffer valve according to claim 2, is characterized in that: described limit stoper is baffle plate, setscrew nut or step.
4. miniature buffer valve according to claim 1 and 2, is characterized in that: the center hole upper-end surface of described valve seat and the lower end surface of described valve plate (2) are for contacting sealing surface.
5. miniature buffer valve according to claim 1 and 2, it is characterized in that: also comprise adjusting screw (8), one end of described adjusting screw (8) is stretched into from described upper cover (9) outside, and contacts with described pressing plate (7).
6. miniature buffer valve according to claim 1 and 2, is characterized in that: between described guide sleeve (5) and described adjustment hole inwall, is all provided with seal ring between described guide sleeve (5) and described valve rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924977.7A CN105402447A (en) | 2015-12-11 | 2015-12-11 | Miniature slowly-closed check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924977.7A CN105402447A (en) | 2015-12-11 | 2015-12-11 | Miniature slowly-closed check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402447A true CN105402447A (en) | 2016-03-16 |
Family
ID=55468112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510924977.7A Pending CN105402447A (en) | 2015-12-11 | 2015-12-11 | Miniature slowly-closed check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402447A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489814A (en) * | 2017-09-21 | 2017-12-19 | 安徽荣达阀门有限公司 | A kind of new dual spring regulation Slow Close Valve |
| CN112412722A (en) * | 2020-11-05 | 2021-02-26 | 太原理工大学 | High-speed active lubrication radial static balance plunger pump for high-water-based medium |
-
2015
- 2015-12-11 CN CN201510924977.7A patent/CN105402447A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489814A (en) * | 2017-09-21 | 2017-12-19 | 安徽荣达阀门有限公司 | A kind of new dual spring regulation Slow Close Valve |
| CN112412722A (en) * | 2020-11-05 | 2021-02-26 | 太原理工大学 | High-speed active lubrication radial static balance plunger pump for high-water-based medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |