CN202562710U - Leak-check sealing device of tubular product - Google Patents
Leak-check sealing device of tubular product Download PDFInfo
- Publication number
- CN202562710U CN202562710U CN2012201642420U CN201220164242U CN202562710U CN 202562710 U CN202562710 U CN 202562710U CN 2012201642420 U CN2012201642420 U CN 2012201642420U CN 201220164242 U CN201220164242 U CN 201220164242U CN 202562710 U CN202562710 U CN 202562710U
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- China
- Prior art keywords
- piston
- cylinder
- tubing
- tubular product
- leak detection
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- Expired - Fee Related
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Abstract
The utility model discloses a leak-check sealing device of a tubular product. The leak-check sealing device of the tubular product comprises a cylinder, wherein a piston is arranged inside the cylinder; the piston and the cylinder are in sealed sliding connection; one end of the cylinder is tightly connected with a gland bush; the other end of the cylinder is provided with an insertion hole for inserting the tubular product; an airtight chamber is arranged between the gland bush and the piston; a second air inlet communicated with the airtight chamber and the inner cavity of the tubular product is arranged on the piston; a one-way valve is arranged inside the second air inlet; a piston intake passage with an L-shaped section is arranged on the piston; an air intake circuit is arranged at the position on the inner wall of the cylinder corresponding to the piston intake passage, and the cylinder is provided with a first air inlet communicated with the air intake circuit. By adopting the scheme, the connection between the tubular product and a pressing device is rapider; the sealing effect is better; the work efficiency is improved, and the labor intensity of personnel is reduced.
Description
Technical field
The utility model relates to a kind of tubing leak detection closing device, belongs to tubing pressure leak detection testing apparatus technical field.
Background technology
When carrying out tubing leak detection pressure test, need connect the leak detection closing device to the two ends of tubing usually, injection water or pressurized air are tested ability and the leak detection that tubing bears pressure in the tubing.The interface of tubing and device will seal when test; If seal the bad perhaps gas leak phenomenon that will occur leaking; The build-up of pressure test data is inaccurate; The present leak detection closing device and the joint of tubing are connected and bother very much when sealing, and cause work efficiency low, and labor intensity of operating staff increases.
The utility model content
The problem that the utility model will solve is for overcoming above-mentioned technological deficiency, and a kind of tubing leak detection packoff is provided, and can make being connected of tubing and leakage detection apparatus more quick, and sealing effectiveness is better, increases work efficiency, and alleviates staff's labour intensity.
In order to address the above problem, the utility model adopts following technical scheme:
A kind of tubing leak detection closing device comprises cylinder, is provided with piston in the cylinder, and sealed sliding is dynamically connected between piston and the cylinder, and an end of said cylinder is sealedly connected with gland, and the other end of said cylinder is provided with and is used for jack that tubing is pegged graft;
Have sealed chamber between said gland and the piston, piston is provided with second air intake opening that is communicated with sealed chamber and tubing inner chamber, in second air intake opening, retaining valve is installed;
Said piston is provided with the piston intake passage that the cross section is the L type, is provided with the air inlet circuit with the corresponding position of piston intake passage on the inwall of said cylinder, and cylinder is provided with first air intake opening that is communicated with the air inlet circuit.
Below be the further improvement of the utility model to such scheme:
Spring is installed in sealed chamber.
Further improve: a wherein end of said piston intake passage is communicated with the tubing inner chamber, and the other end is arranged on the radial position near cylinder inner wall.
Further improve: said piston has the convex platform near an end of jack, and the periphery of this convex platform is provided with the Work piece sealing circle.
Further improve: the outside near an end of jack on the said cylinder is equipped with the auto lock handle.
During use, the utility model adopts two covers to use synchronously, and the two ends of tubing are inserted respectively in the socket in every cover frock; And withstand the Work piece sealing circle on the piston, and pinning workpiece with the auto lock handle, the end face of Work piece sealing circle and tubing compresses under the effect of pressure spring each other; Pressurized air gets in the tubing through air inlet circuit and piston channel through first air admission hole; And through second air admission hole and retaining valve entering sealed chamber, because piston diameter is bigger than workpiece diameter, the power of piston one end is greater than the power near tubing one end under the identical situation of pressure; An end that promotes the past tubing of piston moves; Make piston receive spring and gas and promote piston and bring dual thrust, snap-in force is increased, play the effect of this packoff.
The utility model adopts technique scheme to make the connection between tubing and the pressure device more quick, and sealing effectiveness is better, has improved work efficiency, has alleviated personnel's labour intensity.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Among the figure: the 1-cylinder; The 2-gland; The 3-piston; 4-auto lock handle; The 5-retaining valve; 6-first air admission hole; 7-air inlet circuit; 8-second air admission hole; The 9-gland ring; 10-cylinder seal circle; 11-Work piece sealing circle; 12-tubing; The 13-spring; The 14-jack; The 15-sealed chamber; 16-tubing inner chamber; 17-piston intake passage.
Embodiment
Embodiment; As shown in Figure 1, a kind of tubing leak detection closing device comprises cylinder 1; Be provided with piston 3 in the cylinder 1; Be dynamically connected through cylinder seal circle 10 sealed sliding between piston 3 and the cylinder 1, an end of said cylinder 1 is sealedly connected with gland 2 through gland ring 9, and the other end of said cylinder 1 is provided with the jack 14 of the tubing that is used for pegging graft.
Have sealed chamber 15 between said gland 2 and the piston 3, spring 13 is installed in sealed chamber 15.
Piston 3 is provided with second air admission hole 8 that is communicated with sealed chamber 15 and tubing inner chamber 16, in second air admission hole 8, retaining valve 5 is installed.
Said piston 3 is provided with the piston intake passage 17 that the cross section is the L type, and a wherein end of said piston intake passage 17 is communicated with tubing inner chamber 16, and the other end is arranged on the radial position near cylinder 1 inwall.
Be provided with air inlet circuit 7 with piston intake passage 17 corresponding positions on the inwall of said cylinder 1, cylinder 1 is provided with first air admission hole 6 that is communicated with air inlet circuit 7.
Said piston 3 has the convex platform near an end of jack 14, is provided with Work piece sealing circle 11 around this convex platform.
The outside near an end of jack 14 on the said cylinder 1 is equipped with auto lock handle 4.
During use, the utility model adopts two covers to use synchronously, and the two ends of tubing 12 are inserted respectively in the jack 14 in every cover frock; And withstand the Work piece sealing circle 11 on the piston 3, and pinning workpiece with auto lock handle 4, Work piece sealing circle 11 compresses under the effect of pressure spring 13 with the end face of tubing 12 each other; Pressurized air gets in circuit 7. piston channels 17 and the tubing 12 through first air admission hole 6; And get into sealed chambers 15 through second air admission hole 8 and retaining valve 5, under the identical situation of pressure because piston diameter is bigger than workpiece diameter, piston 3 near the power of sealed chamber 15 1 ends greater than power near tubing 12 1 ends; An end that promotes the past tubing 12 of piston moves; Make piston 3 receive spring 13 and bring dual thrust, snap-in force is increased, play the effect of this packoff with gas promotion piston 3.
The utility model adopts technique scheme to make the connection between tubing and the leak detection packoff more quick, and sealing effectiveness is better, has improved work efficiency, has alleviated personnel's labour intensity.
Claims (5)
1. tubing leak detection closing device; Comprise cylinder (1); It is characterized in that: be provided with piston (3) in the cylinder (1); Sealed sliding is dynamically connected between piston (3) and the cylinder (1), and an end of said cylinder (1) is sealedly connected with gland (2), and the other end of said cylinder (1) is provided with and is used for jack (14) that tubing is pegged graft;
Have sealed chamber (15) between said gland (2) and the piston (3), piston (3) is provided with second air intake opening (8) that is communicated with sealed chamber (15) and tubing inner chamber, and retaining valve (5) is installed in second air intake opening (8);
Said piston (3) is provided with the piston intake passage (17) that the cross section is the L type; Be provided with air inlet circuit (7) with the corresponding position of piston intake passage (17) on the inwall of said cylinder (1), cylinder (1) is provided with first air intake opening (6) that is communicated with air inlet circuit (7).
2. a kind of tubing leak detection closing device according to claim 1 is characterized in that: spring (13) is installed in sealed chamber (15).
3. a kind of tubing leak detection closing device according to claim 1 and 2, it is characterized in that: a wherein end of said piston intake passage (17) is communicated with the tubing inner chamber, and the other end is arranged on the radial position near cylinder (1) inwall.
4. a kind of tubing leak detection closing device according to claim 3, it is characterized in that: said piston (3) has the convex platform near an end of jack (14), and the periphery of this convex platform is provided with Work piece sealing circle (11).
5. a kind of tubing leak detection closing device according to claim 4, it is characterized in that: the outside that said cylinder (1) is gone up near an end of jack (14) is equipped with auto lock handle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201642420U CN202562710U (en) | 2012-04-18 | 2012-04-18 | Leak-check sealing device of tubular product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201642420U CN202562710U (en) | 2012-04-18 | 2012-04-18 | Leak-check sealing device of tubular product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562710U true CN202562710U (en) | 2012-11-28 |
Family
ID=47212355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201642420U Expired - Fee Related CN202562710U (en) | 2012-04-18 | 2012-04-18 | Leak-check sealing device of tubular product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953809A (en) * | 2018-09-07 | 2018-12-07 | 王利军 | A kind of quick coupling for leak detection |
| CN112096992A (en) * | 2020-09-01 | 2020-12-18 | 格力电器（武汉）有限公司 | Quick-operation joint and have its connection structure |
-
2012
- 2012-04-18 CN CN2012201642420U patent/CN202562710U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953809A (en) * | 2018-09-07 | 2018-12-07 | 王利军 | A kind of quick coupling for leak detection |
| CN108953809B (en) * | 2018-09-07 | 2024-02-02 | 王利军 | The method comprises the following steps of: for leakage quick connector for detection |
| CN112096992A (en) * | 2020-09-01 | 2020-12-18 | 格力电器（武汉）有限公司 | Quick-operation joint and have its connection structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20170418 |