CN110735953A - check valve core structure - Google Patents
check valve core structure Download PDFInfo
- Publication number
- CN110735953A CN110735953A CN201910993035.2A CN201910993035A CN110735953A CN 110735953 A CN110735953 A CN 110735953A CN 201910993035 A CN201910993035 A CN 201910993035A CN 110735953 A CN110735953 A CN 110735953A
- Authority
- CN
- China
- Prior art keywords
- valve core
- plate
- core plate
- valve
- sealing gasket
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 230000035939 shock Effects 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
valve core structure of one-way valve, it belongs to valve technology field, the structure is novel, compared with traditional valve core structure, it uses valve core guide sleeve as valve core slide bar, the guide sleeve diameter is larger, stability is good, strength is large, and the service life of slide bar is prolonged, the edge of valve core plate is added with retaining skirt, a groove is formed between retaining skirt and valve core screw, the sealing pad is embedded in the valve core plate, the structure is characterized in that the sealing pad and valve core plate are embedded in tightly, the retaining skirt protects the sealing pad, mud will not squeeze into the gap between sealing pad and valve core plate in high speed flow process, the situation that the sealing pad is deformed and broken due to mud squeezing is avoided, even the sealing pad is broken by external force, the sealing pad will not drop through retaining skirt protection, the service life of sealing pad is prolonged, in addition, the shock and mechanical damage generated by the collision between valve core plate and one-way valve cover plate guide bar (or guide pipe) when the valve core moves.
Description
Technical Field
The invention belongs to the technical field of valves , relates to a valve core structure of one-way valves, and particularly relates to a valve core structure of one-way valves used in pump body pipelines.
Background
The valve for preventing medium from flowing back is called one-way valve, which is divided into three types, i.e. lift one-way valve, rotary one-way valve and butterfly one-way valve, and is used in factory, heating system, compressed air, water supply and other devices to prevent back flow or exhaust.
The traditional one-way valve core structure generally adopts a locking nut, an elastic washer, a flat washer and a sealing gasket to realize the sealing of the one-way valve to a valve body, so that fluid cannot flow, when the valve core structure works in a high-pressure or large-flow occasion, the reciprocating frequency of the valve core structure is more, and the valve core structure usually needs to bear larger load, and when the traditional structure valve core is adopted, the failure mode often appears in the test of the traditional structure valve core, wherein 1, the root part of a valve rod adopts an type or a welding mode, so that the fracture phenomenon easily appears at the root part of the valve rod when the valve rod bears larger load, 2, because the reciprocating frequency of the valve core is more, the locking nut is easy to loosen in a longer time, so that the valve rod and the sealing gasket are separated, 3, the impact force between the valve core and the valve body is larger, the sealing gasket of the valve core and the sealing surface of a base of the valve body are repeatedly and tightly opened and closed at high frequency.
In order to solve the defects, the invention patent of Chinese patent application No. 201610164554.4 provides a novel one-way valve core structure, which is formed by connecting a valve rod, a valve plate, a sealing gasket, a pressure plate and a nut, wherein the valve rod is a step shaft, an external thread is processed on a shaft head of the step shaft, the valve plate is sleeved at a shaft shoulder of the step shaft, the sealing gasket is arranged below the valve plate, the pressure plate is arranged below the sealing gasket, the nut is screwed below the pressure plate, a pin hole penetrating through the valve rod is formed in the screwed nut, and a bolt is arranged in the pin hole.
Disclosure of Invention
Aiming at the defects of the valve core structure of the one-way valve in the using process, the invention provides valve core structures of the one-way valve, the structure adopts a valve core guide sleeve, a retaining skirt structure is additionally arranged on the periphery of a valve core plate, a groove is formed between the retaining skirt and a valve core screw rod, and a sealing gasket is arranged in the valve core plate, so that the sealing gasket can be effectively protected, and the service life of the sealing gasket can be prolonged.
The technical scheme includes that one-way valve core structures are characterized in that the valve core structures are formed by connecting a valve core main body, a shock absorption pad, a sealing gasket pressing plate and a nut, the valve core main body is formed by a valve core guide sleeve, a valve core plate retaining skirt and a valve core screw rod, the valve core guide sleeve is fixedly connected to the upper surface of the valve core plate, the valve core screw rod is fixedly connected to the lower surface of the valve core plate, the valve core plate retaining skirt is arranged on the outer circle side of the valve core plate in a connecting mode and forms a counter bore with the valve core plate, the sealing gasket is arranged on the valve core screw rod in an embedded mode and is arranged in the counter bore, the sealing gasket is axially fixed through the sealing gasket pressing plate, the nut is screwed below the sealing gasket pressing plate, and the shock absorption pad is.
The valve core guide sleeve and the valve core plate are in body type structures and are fixedly welded or in threaded connection.
The valve core guide sleeve and the valve core screw rod are coaxially arranged at the central position of the valve core plate.
The nut is provided with a pin hole penetrating through the valve core screw rod, and a fixing pin is arranged in the pin hole.
The valve core plate retaining skirt is of a thin-wall circular ring structure, the depth of a counter bore formed by the valve core plate retaining skirt and the valve core plate is larger than or equal to the thickness of the sealing gasket, and the opening direction of the counter bore is equal to of the setting direction of the valve core screw rod.
The one-way valve core structure has the advantages that the structure is novel, compared with a traditional valve core structure, the valve core guide sleeve is used as a valve core slide rod, the guide sleeve is large in diameter, good in stability and high in strength, the service life of the slide rod is prolonged, the retaining skirt is additionally arranged on the periphery of the valve core plate, a groove is formed between the retaining skirt and a valve core screw rod, and the sealing gasket is embedded in the valve core plate.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the valve core comprises a valve core main body 1, a valve core guide sleeve 1-1, a valve core plate 1-2, a valve core plate retainer skirt 1-3, a valve core screw rod 1-4, a shock pad 2, a sealing gasket 3, a sealing gasket pressing plate 4, a fixing pin 5 and a nut 6.
Detailed Description
The invention is further described with reference to the following drawings:
as shown in FIG. 1, unidirectional valve core structures comprise a valve core main body 1, a shock absorption pad 2, a sealing gasket 3, a sealing gasket pressing plate 4 and a nut 6 which are connected, wherein the valve core main body 1 comprises a valve core guide sleeve 1-1, a valve core plate 1-2, a valve core plate retaining skirt 1-3 and a valve core screw 1-4, the valve core guide sleeve 1-1 is fixedly connected to the upper surface of the valve core plate 1-2, the valve core screw 1-4 is fixedly connected to the lower surface of the valve core plate 1-2, the valve core plate retaining skirt 1-3 is arranged on the outer circle side of the valve core plate 1-2 and forms a counter bore with the valve core plate 1-2, the sealing gasket 3 is sleeved on the valve core screw 1-4 and embedded in the counter bore, the sealing gasket 3 is axially fixed through the sealing gasket pressing plate 4, the nut 6 is screwed below the sealing gasket pressing plate 4, and the shock absorption pad 2 is arranged at the root part of.
As shown in figure 1, unidirectional valve core structures comprise a valve core guide sleeve 1-1 and a valve core plate 1-2 which are body type structures and are welded and fixed or in threaded connection and fixed, a valve core guide sleeve 1-1 and a valve core screw rod 1-4 are coaxially arranged at the center of the valve core plate 1-2, a nut 6 is provided with a pin hole penetrating through the valve core screw rod 1-4, a fixing pin 5 is arranged in the pin hole, a valve core plate retaining skirt 1-3 is in a thin-wall circular structure, the depth of a counter bore formed by the valve core plate retaining skirt 1-3 and the valve core plate 1-2 is larger than or equal to the thickness of a sealing gasket 3, and the opening direction of the counter bore is equal to of the arrangement direction of the valve core screw.
Compared with the traditional valve core structure, the guide sleeve has the advantages that the diameter of the guide sleeve is larger, the stability is good, the strength is large, the service life of the sliding rod is prolonged, the retaining skirt is additionally arranged on the periphery of the valve core plate, a groove is formed between the retaining skirt and the valve core screw rod, and the sealing gasket is embedded in the valve core plate.
Claims (5)
- The one-way valve core structure is characterized in that the valve core structure is formed by connecting a valve core main body (1), a shock absorption pad (2), a sealing gasket (3), a sealing gasket pressing plate (4) and a nut (6), wherein the valve core main body (1) is composed of a valve core guide sleeve (1-1), a valve core plate (1-2), a valve core plate retaining skirt (1-3) and a valve core screw rod (1-4), the valve core guide sleeve (1-1) is fixedly connected to the upper surface of the valve core plate (1-2), the valve core screw rod (1-4) is fixedly connected to the lower surface of the valve core plate (1-2), the valve core plate retaining skirt (1-3) is fixedly connected to the outer circle side of the valve core plate (1-2) and forms a counter bore with the valve core plate (1-2), the sealing gasket (3) is sleeved on the valve core screw rod (1-4) and embedded in the counter bore, the sealing gasket (3) is axially fixed through the sealing gasket pressing plate (4), the nut (6) is screwed below the sealing gasket (4), and the root of the shock absorption pad (1-1) is arranged on the inner side of the valve core guide sleeve (1-.
- 2. The kinds of check valve core structure of claim 1, wherein the valve core guide sleeve (1-1) and the valve core plate (1-2) are type structures, welded or screwed.
- 3. The one-way valve core structure according to claim 1, wherein the core guide sleeve (1-1) and the core screw (1-4) are coaxially arranged at the center of the core plate (1-2).
- 4. The kinds of check valve core structure of claim 1, wherein the nut (6) is provided with a pin hole penetrating through the core screw (1-4), and the pin hole is provided with a fixed pin (5).
- 5. The one-way valve core structure of claim 1, wherein the core plate skirt (1-3) is a thin-walled ring structure, the depth of a counter bore formed by the core plate skirt (1-3) and the core plate (1-2) is greater than or equal to the thickness of the gasket (3), and the opening direction of the counter bore is equal to the direction of the core screw (1-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993035.2A CN110735953A (en) | 2019-10-18 | 2019-10-18 | check valve core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993035.2A CN110735953A (en) | 2019-10-18 | 2019-10-18 | check valve core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110735953A true CN110735953A (en) | 2020-01-31 |
Family
ID=69269279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910993035.2A Pending CN110735953A (en) | 2019-10-18 | 2019-10-18 | check valve core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110735953A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697825A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | Novel one-way valve element structure |
| CN208381396U (en) * | 2018-05-24 | 2019-01-15 | 扬州市牛虎环保设备有限公司 | A kind of check valve applied in sludge pump |
| CN208634446U (en) * | 2018-06-06 | 2019-03-22 | 盾安环境技术有限公司 | Check valve |
| CN208651714U (en) * | 2018-07-20 | 2019-03-26 | 上海国之鼎铁路机电有限公司 | Rail traffic pressure-control check valve |
| CN211117804U (en) * | 2019-10-18 | 2020-07-28 | 扬州四启环保设备有限公司 | Valve core structure of one-way valve |
-
2019
- 2019-10-18 CN CN201910993035.2A patent/CN110735953A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697825A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | Novel one-way valve element structure |
| CN208381396U (en) * | 2018-05-24 | 2019-01-15 | 扬州市牛虎环保设备有限公司 | A kind of check valve applied in sludge pump |
| CN208634446U (en) * | 2018-06-06 | 2019-03-22 | 盾安环境技术有限公司 | Check valve |
| CN208651714U (en) * | 2018-07-20 | 2019-03-26 | 上海国之鼎铁路机电有限公司 | Rail traffic pressure-control check valve |
| CN211117804U (en) * | 2019-10-18 | 2020-07-28 | 扬州四启环保设备有限公司 | Valve core structure of one-way valve |
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