CN203585457U - Check valve - Google Patents

Check valve Download PDF

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Publication number
CN203585457U
CN203585457U CN201320702802.8U CN201320702802U CN203585457U CN 203585457 U CN203585457 U CN 203585457U CN 201320702802 U CN201320702802 U CN 201320702802U CN 203585457 U CN203585457 U CN 203585457U
Authority
CN
China
Prior art keywords
steel ball
spring
valve seat
seat
valve
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.)
Expired - Lifetime
Application number
CN201320702802.8U
Other languages
Chinese (zh)
Inventor
李拥刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANYANG RONGCHENG PETROLEUM MINING MACHINERY Co Ltd
Original Assignee
ANYANG RONGCHENG PETROLEUM MINING MACHINERY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANYANG RONGCHENG PETROLEUM MINING MACHINERY Co Ltd filed Critical ANYANG RONGCHENG PETROLEUM MINING MACHINERY Co Ltd
Priority to CN201320702802.8U priority Critical patent/CN203585457U/en
Application granted granted Critical
Publication of CN203585457U publication Critical patent/CN203585457U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a check valve. A valve seat is fixedly arranged at one end of the internal part of a tubular valve body and a spring gland is fixedly arranged at the other end; the inner chamber of the valve seat is of a conical structure and a through hole is formed in the spring gland; a steel ball is sheathed in the inner chamber of the valve seat, a spring seat is arranged on the outer side of the steel ball and a spring is arranged between the spring seat and the spring gland. The check valve has the advantages that the structure is very simple, the very good sealing effect can be realized through fitting between the steel ball and the conical surface of the valve seat, the contact area between the steel ball and the conical surface of the valve seat is very small, the pressure between the steel ball and the valve seat is higher and the sealing performance is good; the steel ball and the metallic valve seat can bear a higher temperature environment, the thermal expansion coefficient of the steel ball and the valve seat is the same and the check valve is suitable for use in environments with greater temperature difference; the service life is long, the cost is low and the popularization and the implementation are facilitated.

Description

One-way valve
Technical field
The utility model relates to valve technology field, is specifically related to a kind of one-way valve.
Background technique
Existing one-way valve complex structure, but in the rear deleterious of long-term use, the life-span is shorter.And the factor of being expanded with heat and contract with cold affects larger.For example, the one-way valve of existing conventional dependence cone and cone match, is to utilize rubber centrum and a cone match, utilizes rubber elasticity to realize press seal, but is not suitable for working under high temperature condition, and this kind of one-way valve is also not suitable for the place that temperature range is larger.
Model utility content
The utility model provides for problems of the prior art and deficiency, and a kind of simple in structure but good one-way valve of applicable effect is provided.
The technical scheme in the invention for solving the technical problem is: a kind of one-way valve, comprise tubular valve body, and intrinsic valve seat is overlapped in the inner one end of this tubular valve body, the other end cover built-in spring gland; The inner chamber of described valve seat is cone structure, on described spring capping, is provided with through hole; In the inner chamber of described valve seat, be set with steel ball, in steel ball arranged outside, have spring seat, between spring seat and spring capping, be provided with spring.The end face that described spring seat contacts with steel ball is provided with conical socket.Spielpassung between the circumference side of described spring seat and tubular valve body inwall.
Effect intentionally of the present utility model: the utility model structure is very simple, utilizes the cone match of steel ball and valve seat can realize good sealing effect, and the surface of contact between steel ball and the conical surface of valve seat is very little, and both pressure is larger, and seal degree is large.Steel ball and metal seat valve can bear compared with high stable environment, and both thermal expansion coefficient are identical, and the environment that the applicable temperature difference is larger is used.When spring seat bears spring pressure, be also subject to fluid pressure, increase sealing effect.The utility model life-span is long, and cost is low, is applicable to promotion and implementation.
Accompanying drawing explanation
Figure l is the cross-sectional view of the utility model one-way valve.
Number in the figure 1 is tubular valve body, and 2 is valve seat, and 3 is steel ball, and 4 is spring seat, and 5 is spring, and 6 is spring capping.
Embodiment
A kind of one-way valve, referring to Fig. 1, the two ends of tubular valve body 1 arrange respectively screw thread, can with pipeline abutting joint.Intrinsic valve seat 2 is overlapped in the inner one end of tubular valve body 1, the other end cover built-in spring gland 6; Wherein the inner chamber of valve seat 2 is cone structure, and steel ball 3 is installed in the conical surface, and this structural feature is not harsh to steel ball 3 size requirements, is applicable to sealing with multiple diameter steel ball.In steel ball 3 arranged outside, have spring seat 4, described spring seat 4 is provided with conical socket with the end face that steel ball 3 contacts, Spielpassung between the circumference side of spring seat 4 and tubular valve body 1 inwall.On spring capping 6, be provided with through hole.Between spring seat 4 and spring capping 6, be provided with spring 5.

Claims (3)

1. an one-way valve, comprises tubular valve body, it is characterized in that: intrinsic valve seat is overlapped in the inner one end of this tubular valve body, the other end cover built-in spring gland; The inner chamber of described valve seat is cone structure, on described spring capping, is provided with through hole; In the inner chamber of described valve seat, be set with steel ball, in steel ball arranged outside, have spring seat, between spring seat and spring capping, be provided with spring.
2. one-way valve according to claim 1, is characterized in that: the end face that described spring seat contacts with steel ball is provided with conical socket.
3. one-way valve according to claim 1, is characterized in that: Spielpassung between the circumference side of described spring seat and tubular valve body inwall.
CN201320702802.8U 2013-11-09 2013-11-09 Check valve Expired - Lifetime CN203585457U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320702802.8U CN203585457U (en) 2013-11-09 2013-11-09 Check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320702802.8U CN203585457U (en) 2013-11-09 2013-11-09 Check valve

Publications (1)

Publication Number Publication Date
CN203585457U true CN203585457U (en) 2014-05-07

Family

ID=50583377

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320702802.8U Expired - Lifetime CN203585457U (en) 2013-11-09 2013-11-09 Check valve

Country Status (1)

Country Link
CN (1) CN203585457U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132170A (en) * 2014-07-27 2014-11-05 成都国光电子仪表有限责任公司 Mini-type pressure reduction pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132170A (en) * 2014-07-27 2014-11-05 成都国光电子仪表有限责任公司 Mini-type pressure reduction pipe

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20140507

CX01 Expiry of patent term