CN203595586U - Pipe pressure testing device - Google Patents
Pipe pressure testing device Download PDFInfo
- Publication number
- CN203595586U CN203595586U CN201320586034.4U CN201320586034U CN203595586U CN 203595586 U CN203595586 U CN 203595586U CN 201320586034 U CN201320586034 U CN 201320586034U CN 203595586 U CN203595586 U CN 203595586U
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- pressure testing
- pipe
- ring
- tubular shaft
- conical
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Abstract
The utility model discloses a pipe pressure testing device relating to a pressure testing device. The pipes can be connected together by adopting the external clamp-type pressure testing tool usually before the pressure test of the pipeline, and the above mentioned connecting way has defects such as weak sealing performance and complicated assembly. The pipe pressure testing device comprises a pressure testing pump, a pressure testing pipe, a pressure gauge, a pressure testing interface used for connecting the pressure testing pipe and the tested pipe. The pipe pressure testing device is characterized in that the pressure testing interface comprises a hollow shaft, a sealing ring, a supporting ring, a position-restricted member, a first conical-shaped expansion force ring, a second conical-shaped expansion force ring, connecting blocks, and a fastening member. The small diameter end of the first conical-shaped expansion force ring and the small diameter end of the second conical-shaped expansion force ring are opposite to each other. The connecting blocks are disposed among the first conical-shaped expansion force ring, the second conical-shaped expansion force ring, and the tested pipe. The shaft cross section of each of the connecting blocks comprises a first inclined edge, a second inclined edge, and a straight edge. When the fastening member moves forward along an axial direction, a first conical-shaped expansion force block can be pushed to move forward along the axial direction, and the connecting blocks can move outwardly along a radial direction at the same time of moving forward along the axial direction, and therefore the connecting blocks abut against the internal diameter of the tested pipe. The pipe pressure testing device has advantages of simple structure, tight sealing, and convenient connection.
Description
Technical field
The utility model relates to a kind of pressure testing device, especially the pressure testing device of small-bore pipe.
Background technology
At present, heating surface tubes in boilers in combination, install before and before steel pipe dispatches from the factory, by corresponding code requirement, need do the hydraulic testing.Because heating surface tube and steel pipe are light pipe, light pipe end does not allow to adopt welding manner to connect pressure testing pipeline, normally adopts external clamping pressure test tool to connect, and above-mentioned pressure test tool exists the shortcomings such as sealing is poor, assembling is complicated.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition is that prior art scheme is improved and improved, and provides pipe pressure testing device, to achieve the goal.For this reason, the utility model is taked following technical scheme.
Pipe pressure testing device, comprise test pump, pressure testing pipe, tensimeter, connection pressure testing pipe with by the pressure testing interface of test tube, it is characterized in that: the support ring that described pressure testing interface comprises the tubular shaft that one end is connected with pressure testing pipe, the O-ring seal that is coated at tubular shaft, offset with O-ring seal, the locating part of restriction support ring axial displacement, two symmetrically arranged the first conical rings and the second conical ring, the contiguous block of multiple circumferential settings, the securing member that the conical ring of propelling first moves forward; The first conical ring is relative with the smaller diameter end of the second conical ring, the first conical ring, the second conical ring and between test tube, be provided with described contiguous block; The second hypotenuse that the shaft section of contiguous block comprises the first hypotenuse of matching with the first conical ring periphery taper surface, match with the second conical ring periphery taper surface, the straight flange matching with tested bore; In the time of securing member axial advancement, promote the first taper expansive force piece axial advancement, contiguous block footpath in axial advancement is outwards moved, contiguous block and tested bore offset.The technical program is by multiple contiguous blocks, tubular shaft to be fixed on by test tube inside, and utilizes O-ring seal sealing, is connected water inlet by tubular shaft with pressure testing pipe, reaches by the object of test tube pressure testing.Have simple in structurely, seal advantage tight, easy to connect, avoid the appearance of the situation of leaking.Wherein locating part can be jump ring, nut etc.
As the further of technique scheme improved and supplemented, the utility model also comprises following additional technical feature.
Described tubular shaft is established the shaft shoulder of evagination, and the right side of the tubular shaft shaft shoulder is provided with lip-type packing, and lip to the right; Described support ring shaft section is " ］ " shape, the right-hand member of support ring and the lip of O-ring seal bottom offset, and the lateral surface of support ring is provided with multiple the first through holes, and the second through hole matching with tubular shaft is offered in support ring bottom surface.If the first through hole, makes fluid can enter O-ring seal lip, make O-ring seal can be close to by the tube wall of test tube.
The tubular shaft on support ring right side is provided with the first nut being threaded with tubular shaft.The first nut is by support ring axial restraint.
The larger diameter end of the left side of the tubular shaft shaft shoulder and the second conical ring offsets, and second nut that is threaded on the tubular shaft in the first conical ring left side, establishes plain washer between the second nut and the first conical ring.
Described tubular shaft is provided with the rectangular spanner card division of peripheral cross-section, and described spanner card division is positioned at the left side of the second nut.In the time pulling the second nut, a spanner is positioned at spanner card division, and another spanner is positioned at the second nut place, and two spanners firmly can be avoided the rotation of tubular shaft simultaneously, facilitates loosening or connecting of pressure testing interface.
The left end aperture of described tubular shaft is bell, in bell, insert the joint that one end can be connected with pressure testing pipe, described joint comprises the joint axis of hollow and is coated at the 3rd nut of hollow joint axle, the right-hand member external diameter of joint axis is left large and right small and form cascaded surface left, the left end external diameter of tubular shaft is established external thread, the 3rd nut is threaded with tubular shaft, the card division that the endoporus left end of the 3rd described nut is established convex, card division is equipped with mutually and drives pressure testing pipe to move to right until offset with tubular shaft bell with the cascaded surface of junction block.Bell is conducive to sealing.
Described the first conical ring, the second conical ring and be provided with three contiguous blocks that are circumferentially arranged between test tube; Outside contiguous block, cambered surface is established reticulate pattern or multiple projection.Reticulate pattern is established in contiguous block outside or projection can increase contiguous block and by friction force between inboard wall of test tube.Three contiguous blocks, simple to operate, clamping effectively, is placed reliably, avoids dropping.
Beneficial effect: the technical program is by multiple contiguous blocks, tubular shaft to be fixed on by test tube inside, and utilize O-ring seal to seal, be connected water inlet by tubular shaft with pressure testing pipe, reach by the object of test tube pressure testing, have simple in structure, seal advantage tight, easy to connect, avoid the appearance of the situation of leaking.
Accompanying drawing explanation
Fig. 1 is the utility model pressure testing interface structure schematic diagram.
Fig. 2 is the utility model principle of work structural representation.
Fig. 3 is the utility model connecting block structure schematic diagram.
Fig. 4 is the utility model sealed supporting ring structure schematic diagram.
1-support ring; 2-the first nut; 3-O-ring seal; First, second conical ring of 4-; 5-contiguous block; 6-plain washer; 7-the second nut; 8-tubular shaft; 9-joint; 10-is by test tube; 11-pressure testing interface; 12-operation valve; 13,17-pressure testing pipe; 14-test pump; 15-tensimeter; 16-pressure gauge valve; 18-vent valve.
Embodiment
Below in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
As shown in Figure 1, 2, the utility model comprises test pump 14, pressure testing pipe 13, tensimeter 15, connect pressure testing pipe 13 with by the pressure testing interface 11 of test tube 10, the first nut 2 of support ring 1 that described pressure testing interface 11 comprises the tubular shaft 8 that one end is connected with pressure testing pipe 13, the Y shape lip-type packing 3 that is coated at tubular shaft 8, offset with O-ring seal, 1 axial displacement of restriction support ring, two symmetrically arranged the first conical rings 4 and the second conical ring 4, the contiguous block 5 of multiple circumferential settings, the second nut 7 that propelling the first conical ring 4 moves forward; The first conical ring 4 is relative with the smaller diameter end of the second conical ring 4, the first conical ring 4, the second conical ring 4 and between test tube 10, be provided with described contiguous block 5; The second hypotenuse that the shaft section of contiguous block 5 comprises the first hypotenuse of matching with the first conical ring 4 periphery taper surfaces, match with the second conical ring 4 periphery taper surfaces, with the straight flange being matched by test tube 10 internal diameters; In the time of securing member axial advancement, promote the first taper expansive force piece axial advancement, contiguous block 5 footpath in axial advancement outwards moved, contiguous block 5 with offseted by test tube 10 internal diameters.Tubular shaft 8 is established the shaft shoulder of evagination, and the right side of tubular shaft 8 shaft shoulders is provided with lip-type packing 3, and lip to the right; Described support ring 1 shaft section is " ］ " shape, the lip bottom of the right-hand member of support ring 1 and O-ring seal 3 offsets, and the lateral surface of support ring 1 is provided with multiple the first through holes, and the second through hole matching with tubular shaft 8 is offered in support ring 1 bottom surface.The tubular shaft 8 on support ring 1 right side is provided with the first nut 2 being threaded with tubular shaft 8.The left side of tubular shaft 8 shaft shoulders and the larger diameter end of the second conical ring 4 offset, and be threaded and establish plain washer 6 between the second nut 7, the second nuts 7 and the first conical ring 4 on the tubular shaft 8 in the first conical ring 4 left sides.
For avoid driving tubular shaft 8 to rotate in the second nut 7 moves axially process, described tubular shaft 8 is provided with the rectangular spanner card division of peripheral cross-section, and described spanner card division is positioned at the left side of the second nut 7.
For avoiding the situations such as pressure release to occur, the left end aperture of described tubular shaft 8 is bell, in bell, insert the joint 9 that one end can be connected with pressure testing pipe 13, described joint 9 comprises the joint axis of hollow and is coated at the 3rd nut of hollow joint axle, the right-hand member external diameter of joint axis is left large and right small and form cascaded surface left, the left end external diameter of tubular shaft 8 is established external thread, the 3rd nut is threaded with tubular shaft 8, the card division that the endoporus left end of the 3rd described nut is established convex, card division is equipped with mutually and drives pressure testing pipe 13 to move to right until offset with tubular shaft 8 bells with the cascaded surface of joint 9 pipes.
The first conical ring 4, the second conical ring 4 and between test tube 10, be provided with two or two contiguous blocks that are circumferentially arranged above 5, in the present embodiment, the first conical ring 4, the second conical ring 4 and be provided with three contiguous blocks that are circumferentially arranged 5 between test tube 10.
For increasing contiguous block 5 and by the friction force between test tube 10, contiguous block 5 outside cambered surfaces are established reticulate pattern or multiple projection.
Assembling process: y-shaped ring 3 is inserted in tubular shaft 8 one end, y-shaped ring 3 is fixed on to tubular shaft 8 ends with the first nut 2 and support ring 1, by first, the second conical ring 4 is inserted in tubular shaft 8, contiguous block 5 is closed up and is enclosed within first, on the second conical ring 4, and stretch into by test tube 10 ends together with tubular shaft 8 and the parts integrated, contiguous block 5 with contacted by test tube 10 inwalls, tighten the second nut 7 and plain washer 6, utilize contiguous block 5 and by the friction force between test tube 10 inwalls, pressure test tool is fixed on by test tube 10 ends, cap nut joint 9 is tightened against tubular shaft 8 ends.Pressure test tool 11 is fixed on by test tube 10 both ends, pressure test tool 11 is connected with pressure testing pipeline 13,17 respectively, and operation valve 12 is housed on pressure testing pipeline 13, and is connected with test pump 14, tensimeter 15 and vent valve 18 are housed, at the front installing pressure gauge valve 16 of tensimeter 15 on pressure testing pipeline 17.
Principle of work: for preventing that y-shaped ring 3 from, putting into pipe and occurring the phenomenons such as upset, distortion from managing extraction, arranging support ring at the lip place of y-shaped ring 3; On support ring, have uniform water conservancy diversion aperture, be beneficial to pressure medium and be applied on O-ring seal lip limit by aperture, strut lips, guarantee the good sealing property of y-shaped ring 3; By fastening nut 7 and plain washer 6, make first, second conical ring 4 pressurizeds, contiguous block 5 is fixed on to pipe end inwall, pressure medium enters by test tube 10 by tubular shaft 8, after pressure test tool 11 connects with pressure testing pipeline 13,17 and test pump 14 etc. respectively, start test pump 14 and pressurize, and open the drained inner air tube of vent valve 18 in good time, finally reach the object of pressure testing.
Pipe pressure testing device shown in above Fig. 1-4 is specific embodiment of the utility model; the utility model substantive distinguishing features and progress are embodied; can be according to actual use needs; under enlightenment of the present utility model; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection domain of this programme.
Claims (7)
1. pipe pressure testing device, comprise test pump (14), pressure testing pipe (13), tensimeter (15), connect pressure testing pipe (13) with by the pressure testing interface (11) of test tube (10), it is characterized in that: described pressure testing interface (11) comprises tubular shaft (8), be coated at the O-ring seal (3) of tubular shaft (8), the support ring (1) offseting with O-ring seal, the locating part of restriction support ring (1) axial displacement, two symmetrically arranged the first conical rings (4) and the second conical ring (4), the contiguous block (5) of multiple circumferential settings, advance the securing member of the first conical ring (4) reach, the first conical ring (4) is relative with the smaller diameter end of the second conical ring (4), the first conical ring (4), the second conical ring (4) and between test tube (10), be provided with described contiguous block (5), the second hypotenuse that the shaft section of contiguous block (5) comprises the first hypotenuse of matching with the first conical ring (4) periphery taper surface, match with the second conical ring (4) periphery taper surface, with the straight flange being matched by test tube (10) internal diameter, in the time of securing member axial advancement, promote the first taper expansive force piece axial advancement, contiguous block (5) footpath in axial advancement outwards moved, contiguous block (5) with offseted by test tube (10) internal diameter.
2. pipe pressure testing device according to claim 1, is characterized in that: described tubular shaft (8) is established the shaft shoulder of evagination, and the right side of tubular shaft (8) shaft shoulder is provided with lip-type packing (3), and lip to the right; Described support ring (1) shaft section is " ］ " shape, the lip bottom of the right-hand member of support ring (1) and O-ring seal (3) offsets, the lateral surface of support ring (1) is provided with multiple the first through holes, and the second through hole matching with tubular shaft (8) is offered in support ring (1) bottom surface.
3. pipe pressure testing device according to claim 2, is characterized in that: the tubular shaft (8) on support ring (1) right side is provided with the first nut (2) being threaded with tubular shaft (8).
4. pipe pressure testing device according to claim 3, it is characterized in that: the left side of tubular shaft (8) shaft shoulder and the larger diameter end of the second conical ring (4) offset, the second nut (7) that is threaded on the tubular shaft (8) in the first conical ring (4) left side, establishes plain washer (6) between the second nut (7) and the first conical ring (4).
5. pipe pressure testing device according to claim 4, is characterized in that: described tubular shaft (8) is provided with the rectangular spanner card division of peripheral cross-section, and described spanner card division is positioned at the left side of the second nut (7).
6. pipe pressure testing device according to claim 5, it is characterized in that: the left end aperture of described tubular shaft (8) is bell, in bell, insert the joint (9) that one end can be connected with pressure testing pipe (13), described joint (9) comprises the joint axis of hollow and is coated at the 3rd nut of hollow joint axle, the right-hand member external diameter of joint axis is left large and right small and form cascaded surface left, the left end external diameter of tubular shaft (8) is established external thread, the 3rd nut is threaded with tubular shaft (8), the card division that the endoporus left end of the 3rd described nut is established convex, card division is equipped with mutually and drives pressure testing pipe (13) to move to right until offset with tubular shaft (8) bell with the cascaded surface of joint (9) pipe.
7. according to the pipe pressure testing device described in the arbitrary claim of claim 1-6, it is characterized in that: described the first conical ring (4), the second conical ring (4) and be provided with three contiguous blocks that are circumferentially arranged (5) between test tube (10); Contiguous block (5) outside cambered surface is established reticulate pattern or multiple projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586034.4U CN203595586U (en) | 2013-09-22 | 2013-09-22 | Pipe pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586034.4U CN203595586U (en) | 2013-09-22 | 2013-09-22 | Pipe pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595586U true CN203595586U (en) | 2014-05-14 |
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ID=50676456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586034.4U Expired - Lifetime CN203595586U (en) | 2013-09-22 | 2013-09-22 | Pipe pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595586U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198121A (en) * | 2014-07-25 | 2014-12-10 | 柯马(上海)工程有限公司 | Mechanism for realizing X-Y-directional movement through unidirectional drive of narrow space |
| CN104359623A (en) * | 2014-10-11 | 2015-02-18 | 江苏万盛铸造有限公司 | Sealing device for detecting airtightness of special elbow |
| CN105179691A (en) * | 2015-09-24 | 2015-12-23 | 哈尔滨工业大学 | Clamping and sealing clamp for end of pipe |
| CN108279093A (en) * | 2018-03-28 | 2018-07-13 | 广东省工业设备安装有限公司 | A kind of assembled air conditioner water device for testing steel pipe pressure |
| CN110595699A (en) * | 2019-10-21 | 2019-12-20 | 哈电集团（秦皇岛）重型装备有限公司 | Helium mass spectrum leak detection device and method for pipe |
| CN117169024A (en) * | 2023-11-02 | 2023-12-05 | 绍兴市上虞区武汉理工大学高等研究院 | Experimental device and testing method for simulating repeated pressurization of inner cavity of hydrogen storage bottle |
-
2013
- 2013-09-22 CN CN201320586034.4U patent/CN203595586U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198121A (en) * | 2014-07-25 | 2014-12-10 | 柯马(上海)工程有限公司 | Mechanism for realizing X-Y-directional movement through unidirectional drive of narrow space |
| CN104198121B (en) * | 2014-07-25 | 2017-01-18 | 柯马(上海)工程有限公司 | Mechanism for realizing X-Y-directional movement through unidirectional drive of narrow space |
| CN104359623A (en) * | 2014-10-11 | 2015-02-18 | 江苏万盛铸造有限公司 | Sealing device for detecting airtightness of special elbow |
| CN105179691A (en) * | 2015-09-24 | 2015-12-23 | 哈尔滨工业大学 | Clamping and sealing clamp for end of pipe |
| CN105179691B (en) * | 2015-09-24 | 2017-03-29 | 哈尔滨工业大学 | A kind of pipe end grip seal fixture |
| CN108279093A (en) * | 2018-03-28 | 2018-07-13 | 广东省工业设备安装有限公司 | A kind of assembled air conditioner water device for testing steel pipe pressure |
| CN110595699A (en) * | 2019-10-21 | 2019-12-20 | 哈电集团（秦皇岛）重型装备有限公司 | Helium mass spectrum leak detection device and method for pipe |
| CN110595699B (en) * | 2019-10-21 | 2021-10-15 | 哈电集团（秦皇岛）重型装备有限公司 | Helium mass spectrum leak detection device and method for pipe |
| CN117169024A (en) * | 2023-11-02 | 2023-12-05 | 绍兴市上虞区武汉理工大学高等研究院 | Experimental device and testing method for simulating repeated pressurization of inner cavity of hydrogen storage bottle |
| CN117169024B (en) * | 2023-11-02 | 2024-01-26 | 绍兴市上虞区武汉理工大学高等研究院 | Experimental device and testing method for simulating repeated pressurization of inner cavity of hydrogen storage bottle |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |