CN204666322U - A kind of seal plug - Google Patents

A kind of seal plug Download PDF

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Publication number
CN204666322U
CN204666322U CN201520425318.4U CN201520425318U CN204666322U CN 204666322 U CN204666322 U CN 204666322U CN 201520425318 U CN201520425318 U CN 201520425318U CN 204666322 U CN204666322 U CN 204666322U
Authority
CN
China
Prior art keywords
cylinder
piston
seal plug
rubber tube
casing
Prior art date
Application number
CN201520425318.4U
Other languages
Chinese (zh)
Inventor
张东海
Original Assignee
张东海
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 张东海 filed Critical 张东海
Priority to CN201520425318.4U priority Critical patent/CN204666322U/en
Application granted granted Critical
Publication of CN204666322U publication Critical patent/CN204666322U/en

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Abstract

The utility model relates to a kind of seal plug, and it comprises cylinder body, and the inside of cylinder body is cavity, is provided with detection ventilating joint, is also provided with a cylinder connector in the end of this side cylinder body at the middle chamber of cylinder body one end; At the center section of the other end of cylinder body, one rubber tube is installed, at the side cylinder body of described rubber tube, inner casing is installed; In the inner chamber of cylinder body, be provided with the piston that can move left and right, between described piston and inner casing, be provided with gap.The utility model seal plug, arranges cylinder and passes into gases at high pressure, is provided with moveable piston in cylinder body, utilizes elastic body to be played sealing and increasing friction force by external force crimp, easy to operate.

Description

A kind of seal plug

Technical field

The utility model relates to field of sealing technology, particularly relates to a kind of seal plug.

Background technology

In prior art, whether test steel pipe leaks gas, and whether has trachoma, is generally blocked at two ends, then fills gases at high pressure by detecting instrument, just can record it and whether there is leakage; But the method for blocking at two ends is exactly a difficult problem, because outer wall and inwall are all smooth, common method is that two ends external force is choked, then by external force, a stopper is filled in pipe to be blocked, but such device is heavier, or as other method, do not produce enough friction force like that.

In view of above-mentioned defect, the utility model creator obtains this creation finally through long research and practice.

Summary of the invention

The purpose of this utility model is to provide a kind of seal plug, in order to overcome above-mentioned technological deficiency.

For achieving the above object, the utility model provides a kind of seal plug, and it comprises cylinder body, and the inside of cylinder body is cavity, is provided with detection ventilating joint, is also provided with a cylinder connector in the end of this side cylinder body at the middle chamber of cylinder body one end;

At the center section of the other end of cylinder body, one rubber tube is installed, at the side cylinder body of described rubber tube, inner casing is installed;

In the inner chamber of cylinder body, be provided with the piston that can move left and right, between described piston and inner casing, be provided with gap.

Further, be provided with the first positioning boss of hoop in the one end being provided with the inner chamber of cylinder block detecting ventilating joint, the radial flange of piston is resisted against on the first positioning boss.

Further, the first O-ring seal is provided with between the radial flange of the piston in the first positioning boss side and the cavity inner wall contacted.

Further, the right side of the first described positioning boss is provided with piston hole, the contact position of the inwall of piston and piston hole is provided with the second O-ring seal.

Further, between described inner casing and rubber tube, be provided with polyurethane magma, axially second positioning boss of polyurethane magma and inner casing against.

Further, the piston of one end of described detection ventilating joint is provided with ventilating joint mounting hole.

Further, be provided with described rubber tube at the other end of ventilating joint mounting hole, the centre of rubber tube is provided with through hole.

Further, the end face of described cylinder body is also provided with cylinder connector mounting hole, in cylinder connector mounting hole, is provided with sleeve, described cylinder connector is installed in sleeve.

Further, in described cylinder connector, be filled with the pressurized air of 0.5MPa.

The beneficial effects of the utility model are compared with prior art: the utility model seal plug, cylinder is set and passes into gases at high pressure, in cylinder body, be provided with moveable piston, utilize elastic body to be played sealing and increasing friction force by external force crimp, easy to operate.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model seal plug;

Sectional structure schematic diagram when Fig. 2 is the free state of the utility model seal plug;

Sectional structure schematic diagram when Fig. 3 is the compressive state of the utility model seal plug.

Embodiment

Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the utility model.

Refer to shown in Fig. 1, the structural representation of the utility model seal plug, it comprises cylinder body 1, and the inside of cylinder body 1 is cavity, is provided with and detects ventilating joint 4, be also provided with a cylinder connector 3 in the end of this side cylinder body 1 at the middle chamber of cylinder body one end; At the center section of the other end of cylinder body, one rubber tube 2 is installed.

Refer to shown in Fig. 2, in the inner chamber of cylinder body 1, be provided with piston 19, under the effect of gases at high pressure, piston 19 can move in the inner chamber of cylinder body 1.The first positioning boss 33 of hoop is provided with in the one end being provided with the inner chamber of cylinder block detecting ventilating joint 4, the radial flange of piston 19 is resisted against on positioning boss 33, between the radial flange and the cavity inner wall 13 contacted of this piston, be provided with the first O-ring seal 12.

The right side of the first positioning boss 33 is provided with piston hole, and piston 19 is provided with the second O-ring seal 14 with the contact position of piston hole inwall 15.

Be provided with inner casing 16 at the side cylinder body of described rubber tube 2, the end outer rim of inner casing 16 contacts with the cavity inner wall 13 of cylinder body 1; Between inner casing 16 and rubber tube 2, be provided with polyurethane magma 17, axially second positioning boss 18 of polyurethane magma 17 and inner casing 16 against.

Between the radial flange and inner casing 16 of described piston 9, be provided with gap 10, move left and right with for described piston 9.

The piston of one end of described detection ventilating joint 4 is provided with ventilating joint mounting hole; Be provided with described rubber tube 2 at the other end of ventilating joint mounting hole, the centre of rubber tube 2 is provided with through hole 21.

The end face of described cylinder body 1 is also provided with cylinder connector mounting hole 32, in cylinder connector mounting hole, is provided with sleeve 31, described cylinder connector 3 is installed in sleeve 31.

In cylinder connector 3, be filled with the pressurized air of 0.5MPa, lead to gases at high pressure at detection ventilating joint 4 and carry out air-leakage test.

The principle of work of seal detector is: be passed into the pressed gas that whole detection system is certain, its equipressure is separated by equalizing valve by detection piece and standard component (absolutely not revealing), the differential pressure pick-up that one accurate is had between standard component and detection piece, when measured piece has leakage, because measured piece and standard component are isobaric disconnection when being balanced valve and separating, just the pressure loss is had when measured piece has leakage, so the pressure on standard component limit is greater than test block pressure on one side, differential pressure pick-up is made to produce a deformation, this deformation will be converted into an electric signal, be input in computing machine, this electric signal is become Pressure Drop through conversion calculating.

The foregoing is only preferred embodiment of the present utility model, is only illustrative for utility model, and nonrestrictive.Those skilled in the art is understood, and requires to carry out many changes to it in the spirit and scope that limit, amendment in utility model right, even equivalent, but all will fall in protection domain of the present utility model.

Claims (9)

1. a seal plug, is characterized in that, it comprises cylinder body, and the inside of cylinder body is cavity, is provided with detection ventilating joint, is also provided with a cylinder connector in the end of this side cylinder body at the middle chamber of cylinder body one end;
At the center section of the other end of cylinder body, one rubber tube is installed, at the side cylinder body of described rubber tube, inner casing is installed;
In the inner chamber of cylinder body, be provided with the piston that can move left and right, between described piston and inner casing, be provided with gap.
2. seal plug according to claim 1, is characterized in that, be provided with the first positioning boss of hoop in the one end being provided with the inner chamber of cylinder block detecting ventilating joint, the radial flange of piston is resisted against on the first positioning boss.
3. seal plug according to claim 2, is characterized in that, is provided with the first O-ring seal between the radial flange of the piston in the first positioning boss side and the cavity inner wall contacted.
4. seal plug according to claim 2, is characterized in that, the right side of the first described positioning boss is provided with piston hole, and the contact position of the inwall of piston and piston hole is provided with the second O-ring seal.
5. seal plug according to claim 2, is characterized in that, is provided with polyurethane magma between described inner casing and rubber tube, axially second positioning boss of polyurethane magma and inner casing against.
6. seal plug according to claim 5, is characterized in that, the piston of one end of described detection ventilating joint is provided with ventilating joint mounting hole.
7. seal plug according to claim 5, is characterized in that, is provided with described rubber tube at the other end of ventilating joint mounting hole, and the centre of rubber tube is provided with through hole.
8. seal plug according to claim 5, is characterized in that, the end face of described cylinder body is also provided with cylinder connector mounting hole, in cylinder connector mounting hole, be provided with sleeve, is provided with described cylinder connector in sleeve.
9. seal plug according to claim 8, is characterized in that, is filled with the pressurized air of 0.5MPa in described cylinder connector.
CN201520425318.4U 2015-06-19 2015-06-19 A kind of seal plug CN204666322U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520425318.4U CN204666322U (en) 2015-06-19 2015-06-19 A kind of seal plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520425318.4U CN204666322U (en) 2015-06-19 2015-06-19 A kind of seal plug

Publications (1)

Publication Number Publication Date
CN204666322U true CN204666322U (en) 2015-09-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520425318.4U CN204666322U (en) 2015-06-19 2015-06-19 A kind of seal plug

Country Status (1)

Country Link
CN (1) CN204666322U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105444960A (en) * 2016-01-05 2016-03-30 天津鹏翎胶管股份有限公司 Fuel hose plugging tool, rapid joint fixation tool and airtightness detection device
CN106066228A (en) * 2016-06-03 2016-11-02 安徽汇展热交换系统股份有限公司 One blocks head and dry type air tightness detection system
CN106441717A (en) * 2016-10-20 2017-02-22 苏州天沃科技股份有限公司 Pressure test plug for heat exchange tube
CN106704833A (en) * 2017-01-06 2017-05-24 重庆燃气集团股份有限公司 Gas pipe blockage detection device and method
CN108827541A (en) * 2018-03-13 2018-11-16 中冶南方(武汉)自动化有限公司 Novel air tight detects seal plug

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105444960A (en) * 2016-01-05 2016-03-30 天津鹏翎胶管股份有限公司 Fuel hose plugging tool, rapid joint fixation tool and airtightness detection device
CN105444960B (en) * 2016-01-05 2018-03-27 天津鹏翎胶管股份有限公司 The fixing tool of fuel pipe and the air tightness detection equipment of fuel hose
CN106066228A (en) * 2016-06-03 2016-11-02 安徽汇展热交换系统股份有限公司 One blocks head and dry type air tightness detection system
CN106441717A (en) * 2016-10-20 2017-02-22 苏州天沃科技股份有限公司 Pressure test plug for heat exchange tube
CN106441717B (en) * 2016-10-20 2019-01-01 张化机(苏州)重装有限公司 The pressure testing plug of heat exchanger tube
CN106704833A (en) * 2017-01-06 2017-05-24 重庆燃气集团股份有限公司 Gas pipe blockage detection device and method
CN106704833B (en) * 2017-01-06 2019-01-04 重庆燃气集团股份有限公司 A kind of fuel gas conduit blocks detection device and blocks detection method
CN108827541A (en) * 2018-03-13 2018-11-16 中冶南方(武汉)自动化有限公司 Novel air tight detects seal plug

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

Granted publication date: 20150923

Termination date: 20170619