CN203335949U - Lifting type check valve - Google Patents

Lifting type check valve Download PDF

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Publication number
CN203335949U
CN203335949U CN2013203945047U CN201320394504U CN203335949U CN 203335949 U CN203335949 U CN 203335949U CN 2013203945047 U CN2013203945047 U CN 2013203945047U CN 201320394504 U CN201320394504 U CN 201320394504U CN 203335949 U CN203335949 U CN 203335949U
Authority
CN
China
Prior art keywords
valve
spring
check valve
bolt
hole
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 - Fee Related
Application number
CN2013203945047U
Other languages
Chinese (zh)
Inventor
王琛博
汪钦
潘英超
王忠海
孙士照
王国富
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.)
WENZHOU BLUE SKY PIPE FITTINGS VALVE CO Ltd
Original Assignee
WENZHOU BLUE SKY PIPE FITTINGS VALVE 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 WENZHOU BLUE SKY PIPE FITTINGS VALVE CO Ltd filed Critical WENZHOU BLUE SKY PIPE FITTINGS VALVE CO Ltd
Priority to CN2013203945047U priority Critical patent/CN203335949U/en
Application granted granted Critical
Publication of CN203335949U publication Critical patent/CN203335949U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a lifting type check valve which comprises a valve body, a valve clack, a valve cover, a guide sleeve, a spring, an adjusting block, a connector and an adjusting bolt. The guide sleeve is fixed in the valve body in a compression mode and used for providing guidance for motion of the valve clack, a threaded hole is formed in the position, corresponding to the valve clack, of the valve cover, the first end of the connector is installed in the threaded hole in a screwed mode, a spring installation hole, a bolt installation hole and a padding hole which are communicated with one another are formed inside the connector, and an inner thread is arranged on the bolt installation hole. The adjusting bolt penetrates through the padding hole and is screwed into the bolt installation hole, and the end portion of the adjusting bolt is fixed with the adjusting block which is arranged in the spring installation hole. One end of the spring is in abutted connection with the adjusting block, and the other end of the spring is in abutted connection with the upper end of the valve clack. According to the lifting type check valve, the compression amount of the spring can be changed by screw-in or screw-out of the adjusting bolt, therefore, the size of the starting pressure of the check valve is controlled, and the aim of reasonably adjusting the size of the starting pressure of the valve is achieved according to the requirement for actual working conditions under the premise that the valve is not replaced.

Description

Lift check valve
Technical field
The utility model belongs to field of check valves, is specifically related to a kind of Lift check valve.
Background technique
Safety check claims again one-way valve or check valve, and its effect is to prevent that the medium in pipeline from flowing backwards.Its open-shut device is open voluntarily or close by media flow and strength, to prevent medium, flows backwards.The Lift check valve that the Swing check valve that the most generally flap rotates around the valve body bearing pin of use at present and flap move along the valve body vertical center line.But at present traditional Lift check valve can only be in the situation that open over a constant pressure.Some special pipeline, need often to change cracking pressure in using process, to adapt to the pipeline working condition requirement, also just need the change valve, brings serious inconvenience to use like this.
The model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of Lift check valve of adjustable gate cracking pressure size.
The utility model is achieved by the following technical solution:
A kind of Lift check valve, comprise valve body, flap, valve gap and guide sleeve, and flap is placed in valve body, and valve gap is connected with valve body with double-screw bolt by nut; Guide sleeve is pressed abd fixed in valve body, is used to the motion of flap that guiding is provided;
It is characterized in that, described Lift check valve also comprises spring, regulating block, joint and adjusting bolt, and on described valve gap, the position corresponding with flap is provided with a tapped hole, and the first end of described joint screws and is arranged in tapped hole; Described joint inside is provided with spring mounting hole, bolt mounting holes and the stuffing hole be interconnected, and on described bolt mounting holes, is provided with internal thread; Adjusting bolt, through stuffing hole, screws in bolt mounting holes, and end is fixed with the regulating block that is arranged on spring mounting hole; One end of spring and regulating block butt, the upper end butt of the other end and flap.
Lift check valve described in the utility model is by precession or the back-out of adjusting bolt, can change the decrement of spring, thereby control the cracking pressure size of this safety check, realized the requirement according to actual conditions, under the prerequisite of not changing valve, the purpose of reasonable regulating valve cracking pressure size; This Lift check valve is simple in structure, easy to adjust, applied widely.
Further, on the second end of described joint, be provided with a protecting jacket, described adjusting bolt is positioned at protecting jacket.
So arrange, can when not needing to regulate pressure, will protect shroud good, with protection valve internal structure; When needs are regulated pressure, protecting jacket is taken off to adjusting and get final product.
Further, in described stuffing hole, the periphery of adjusting bolt is provided with filler, on described filler, is provided with Gland, and described Gland and joint are threaded connection, and with adjusting bolt, are slidably matched.
So arrange, can guarantee the sealing between adjusting bolt and valve body.
Further, the surface of contact of described valve gap and joint is provided with O type circle.
So arrange, can guarantee the sealing between valve gap and joint.
Further, be provided with pad on the radially surface of contact of valve body and guide sleeve.
So arrange, can strengthen the sealing between valve body and guide sleeve, prevent fluid leakage.
Below in conjunction with accompanying drawing, the utility model is further described.
The accompanying drawing explanation
The structural drawing that Fig. 1 is Lift check valve described in the utility model;
In figure, the implication of each label is as follows:
Valve body 1, flap 2, spring 3, guide sleeve 4, pad 5, nut 6, double-screw bolt 7, regulating block 8, joint 9, adjusting bolt 10, filler 11, Gland 12, protecting jacket 13, O type circle 14, valve gap 15.
Embodiment
As shown in Figure 1, the utility model provides a kind of Lift check valve, comprise valve body 1, flap 2, valve gap 15, guide sleeve 4, spring 3, regulating block 8, joint 9 and adjusting bolt 10, flap 2 is placed in valve body 1, and valve gap 15 is connected with valve body 1 with double-screw bolt 7 by nut 6; Guide sleeve 2 is pressed abd fixed in valve body 1, is used to the motion of flap 2 that guiding is provided.
Position corresponding with flap 2 on described valve gap 15 is provided with a tapped hole, and the first end of described joint 9 screws and is arranged in tapped hole; Described joint 9 inside are provided with spring mounting hole, bolt mounting holes and the stuffing hole be interconnected, and on described bolt mounting holes, are provided with internal thread; Adjusting bolt 10, through stuffing hole, screws in bolt mounting holes, and end is fixing with the regulating block 8 that is arranged on spring mounting hole; One end of spring 3 and regulating block 8 butts, the upper end butt of the other end and flap 2.In described stuffing hole, the periphery of adjusting bolt 10 is provided with filler 11, on described filler 11, is provided with Gland 12, and described Gland 12 is threaded connection with joint 9, with adjusting bolt 10, is slidably matched.
Be provided with a protecting jacket 13 on the second end of described joint 9, described adjusting bolt 10 is positioned at protecting jacket 13.When not needing to regulate pressure, protecting jacket 13 is covered, with protection valve internal structure; When needs are regulated pressure, protecting jacket 13 is taken off to adjusting and get final product.
In order to guarantee valve seal, described valve gap 15 is provided with O type circle 14 with the surface of contact of joint 9, on the radially surface of contact of valve body 1 and guide sleeve 4, is provided with pad 5.
The utility model not only is confined to above-mentioned embodiment; persons skilled in the art are according to the disclosed content of the utility model; can adopt other multiple embodiment to implement the utility model; therefore; every employing project organization of the present utility model and thinking; do some simple designs that change or change, all fall into the scope of the utility model protection.

Claims (5)

1. a Lift check valve, comprise valve body (1), flap (2), valve gap (15) and guide sleeve (4), and flap (2) is placed in valve body (1), and valve gap (15) is connected with valve body (1) with double-screw bolt (7) by nut (6); Guide sleeve (2) is pressed abd fixed in valve body (1), is used to the motion of flap (2) that guiding is provided;
It is characterized in that, described Lift check valve also comprises spring (3), regulating block (8), joint (9) and adjusting bolt (10), the upper position corresponding with flap (2) of described valve gap (15) is provided with a tapped hole, and the first end of described joint (9) screws and is arranged in tapped hole; Described joint (9) inside is provided with spring mounting hole, bolt mounting holes and the stuffing hole be interconnected, and on described bolt mounting holes, is provided with internal thread; Adjusting bolt (10), through stuffing hole, screws in bolt mounting holes, and end is fixing with the regulating block (8) that is arranged on spring mounting hole; One end of spring (3) and regulating block (8) butt, the upper end butt of the other end and flap (2).
2. Lift check valve according to claim 1, is characterized in that, is provided with a protecting jacket (13) on the second end of described joint (9), and described adjusting bolt (10) is positioned at protecting jacket (13).
3. Lift check valve according to claim 1, it is characterized in that, in described stuffing hole, the periphery of adjusting bolt (10) is provided with filler (11), be provided with Gland (12) on described filler (11), described Gland (12) is threaded connection with joint (9), with adjusting bolt (10), is slidably matched.
4. Lift check valve according to claim 1, is characterized in that, described valve gap (15) is provided with O type circle (14) with the surface of contact of joint (9).
5. Lift check valve according to claim 1, is characterized in that, on the radially surface of contact of valve body (1) and guide sleeve (4), is provided with pad (5).
CN2013203945047U 2013-07-02 2013-07-02 Lifting type check valve Expired - Fee Related CN203335949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203945047U CN203335949U (en) 2013-07-02 2013-07-02 Lifting type check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203945047U CN203335949U (en) 2013-07-02 2013-07-02 Lifting type check valve

Publications (1)

Publication Number Publication Date
CN203335949U true CN203335949U (en) 2013-12-11

Family

ID=49704625

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203945047U Expired - Fee Related CN203335949U (en) 2013-07-02 2013-07-02 Lifting type check valve

Country Status (1)

Country Link
CN (1) CN203335949U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104976390A (en) * 2014-04-10 2015-10-14 苏州科迪流体控制设备有限公司 Novel lift check valve
CN110296238A (en) * 2019-05-31 2019-10-01 盐城市大丰洪联铸钢有限责任公司 A kind of one-way valve structures
CN113933047A (en) * 2021-10-15 2022-01-14 江苏卡一阀门制造有限公司 Lifting check valve body test device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104976390A (en) * 2014-04-10 2015-10-14 苏州科迪流体控制设备有限公司 Novel lift check valve
CN110296238A (en) * 2019-05-31 2019-10-01 盐城市大丰洪联铸钢有限责任公司 A kind of one-way valve structures
CN113933047A (en) * 2021-10-15 2022-01-14 江苏卡一阀门制造有限公司 Lifting check valve body test device
CN113933047B (en) * 2021-10-15 2023-11-14 江苏卡一阀门制造有限公司 Lifting check valve body test device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131211

Termination date: 20170702

CF01 Termination of patent right due to non-payment of annual fee