CN215262264U - Metal pipe air tightness testing device - Google Patents
Metal pipe air tightness testing device Download PDFInfo
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- CN215262264U CN215262264U CN202121830558.4U CN202121830558U CN215262264U CN 215262264 U CN215262264 U CN 215262264U CN 202121830558 U CN202121830558 U CN 202121830558U CN 215262264 U CN215262264 U CN 215262264U
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- connecting sleeve
- plug
- sleeve
- metal tube
- plug assembly
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Abstract
The utility model discloses a metal tube gas tightness testing device, which comprises an upper plug assembly, a lower plug assembly, a bracket and a positioning mechanism for fixing a metal tube, wherein the upper plug assembly and the lower plug assembly comprise elastic sleeves, connecting sleeves and plugs, the plugs are connected with the connecting sleeves, the connecting sleeves are sleeved on the elastic sleeves, and the elastic sleeves are sleeved on the metal tube; the inner peripheral surface of the elastic sleeve is provided with a limiting convex ring, the end part of the connecting sleeve extends outwards in the circumferential direction to form a plurality of guide bulges, the guide bulges gradually extend towards the outer side of the connecting sleeve along the direction of sleeving the connecting sleeve on the elastic sleeve, the outer peripheral surface of the connecting sleeve is provided with external threads, and the inner peripheral surface of the plug head is provided with internal threads matched with the external threads. The utility model discloses be convenient for operate, guarantee the accuracy that the gas tightness detected.
Description
Technical Field
The utility model belongs to the technical field of the tubular product detects, especially, relate to a tubular metal resonator gas tightness testing arrangement.
Background
After the metal pipe is extruded out, the phenomenon that fine holes are generated due to production technology, collision and the like is inevitable, so that the quality of the metal pipe is unqualified, and the traditional method for detecting the tightness of the metal pipe adopts a water immersion or oil immersion visual bubble method to detect the air tightness of the pipe under a pressure maintaining state. Whether the metal tube has a leak or not is judged according to whether bubbles appear in the observation water, a large amount of water resources are wasted, and when other interference factors exist in the detection water body, bubbles can be generated to influence the detection accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a tubular metal resonator gas tightness testing arrangement, and the accuracy that the gas tightness detected is guaranteed in the operation of being convenient for.
In order to solve the technical problem, the utility model discloses a technical scheme be: a metal pipe air tightness testing device comprises an upper plug assembly, a lower plug assembly, a support and a positioning mechanism for fixing a metal pipe, wherein the upper plug assembly and the lower plug assembly respectively comprise an elastic sleeve, a connecting sleeve and a plug head, the plug head is connected with the connecting sleeve, the connecting sleeve is sleeved on the elastic sleeve, and the elastic sleeve is sleeved on the metal pipe;
the inner peripheral surface of the elastic sleeve is provided with a limiting convex ring, the end part of the connecting sleeve extends outwards in the circumferential direction to form a plurality of guide bulges, the guide bulges gradually extend towards the outer side of the connecting sleeve along the direction that the connecting sleeve is sleeved on the elastic sleeve, the outer peripheral surface of the connecting sleeve is provided with external threads, and the inner peripheral surface of the plug head is provided with internal threads matched with the external threads;
the plug of lower end cap subassembly communicates with the water pipe, the water pipe communicates with the water tank, the plug of lower end cap subassembly communicates with the trachea, the trachea communicates with the air pump.
Further, positioning mechanism includes pressure disk, lead screw and handle, the pressure disk rotate connect in the lead screw, the lead screw passes the support with the handle is connected, it is located to go up the end cap subassembly the below of pressure disk, the trachea passes the pressure disk.
Furthermore, the support is provided with a supporting plate, the lower plug assembly is located above the supporting plate, and the water pipe penetrates through the supporting plate.
Furthermore, a circle of sealing washer is arranged between the plug head and the connecting sleeve.
Furthermore, a water pump and an electromagnetic valve are arranged on the water pipe.
Furthermore, the outer surface of the metal pipe is coated with a layer of absorbent paper.
Furthermore, the air pipe is provided with an air pressure valve.
Furthermore, the peripheral surface of the elastic sleeve is protruded outwards in the circumferential direction to form a plurality of sealing convex rings.
The beneficial effects of the utility model are that following several points have at least:
the utility model discloses an including the upper plug subassembly, lower plug subassembly, and a support and a positioning mechanism for fixing the tubular metal resonator, the upper plug subassembly all includes elastic sleeve with lower plug subassembly, adapter sleeve and chock plug, chock plug and adapter sleeve connect, adapter sleeve cover is in elastic sleeve, elastic sleeve overlaps the tubular metal resonator, overlap elastic sleeve in the both ends of tubular metal resonator, again with adapter sleeve extrusion elastic sleeve and overlap in elastic sleeve, chock plug threaded connection is in adapter sleeve, thereby seal the tubular metal resonator both ends and carry out the gas tightness test, guarantee the accuracy of detection, worth mentioning, the chock plug of lower plug subassembly communicates with the water pipe, the water pipe communicates with the water tank, the chock plug of lower plug subassembly communicates with the trachea, the trachea communicates with the air pump, only need let in water, alright pressurization detects the tubular metal resonator, reduce the detection water;
the inner peripheral surface of the elastic sleeve of the utility model is provided with a limit convex ring, the end part of the connecting sleeve extends outwards in the circumferential direction to form a plurality of guide bulges, the guide bulges extend towards the outer side of the connecting sleeve gradually along the direction that the connecting sleeve is sleeved on the elastic sleeve, and the connecting sleeve is sleeved on the elastic sleeve conveniently through the guide bulges;
the utility model discloses a positioning mechanism includes pressure disk, lead screw and handle, and the pressure disk rotates to be connected in the lead screw, and the lead screw passes the support and is connected with the handle, and rotatory handle makes the pressure disk push down, and the leakproofness at further assurance tubular metal resonator both ends is convenient for detect the tubular metal resonator simultaneously.
The utility model discloses a surface cladding of tubular metal resonator has the one deck paper that absorbs water, is convenient for observe the tubular metal resonator and whether leaks to detect the gas tightness of tubular metal resonator.
The utility model discloses an outside arch in elastic sleeve's outer peripheral face circumference forms a plurality of sealed protruding circles of circle, plays sealed effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the upper plug assembly and the lower plug assembly of the present invention;
the parts in the drawings are marked as follows:
the water-absorbing and water-saving device comprises a support 1, a support plate 11, a metal pipe 2, a pressure plate 31, a screw rod 32, a handle 33, an elastic sleeve 41, a limiting convex ring 411, a sealing convex ring 412, a connecting sleeve 42, a guide protrusion 421, a plug 43, a sealing washer 44, a water pipe 5, a water tank 51, a water pump 52, an electromagnetic valve 53, an air pipe 6, an air pump 61, an air pressure valve 62 and water-absorbing paper 7.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b): a metal pipe airtightness testing device, as shown in fig. 1-2, comprising an upper plug assembly, a lower plug assembly, a bracket 1 and a positioning mechanism for fixing a metal pipe 2, wherein each of the upper plug assembly and the lower plug assembly comprises an elastic sleeve 41, a connecting sleeve 42 and a plug 43, the plug 43 is connected with the connecting sleeve 42, the connecting sleeve 42 is sleeved on the elastic sleeve 41, and the elastic sleeve 41 is sleeved on the metal pipe 2;
the inner peripheral surface of the elastic sleeve 41 is provided with a limiting convex ring 411, the end part of the connecting sleeve 42 extends outwards in the circumferential direction to form a plurality of guide protrusions 421, the guide protrusions 421 gradually extend towards the outer side of the connecting sleeve 42 along the direction that the connecting sleeve 42 is sleeved on the elastic sleeve 41, the outer peripheral surface of the connecting sleeve 42 is provided with external threads, and the inner peripheral surface of the plug 43 is provided with internal threads matched with the external threads;
the plug 43 of the lower plug assembly is communicated with a water pipe 5, the water pipe 5 is communicated with a water tank 51, the plug 43 of the lower plug assembly is communicated with an air pipe 6, and the air pipe 6 is communicated with an air pump 61.
As an alternative to this embodiment, the air pump 61 may be replaced with an air pressure tester.
Positioning mechanism includes pressure disk 31, lead screw 32 and handle 33, pressure disk 31 rotate connect in lead screw 32, lead screw 32 passes support 1 with handle 33 is connected, it is located to go up the end cap subassembly the below of pressure disk 31, trachea 6 passes pressure disk 31.
In specific implementation, the screw rod is in threaded connection with the bracket.
The support 1 is provided with a support plate 11, the lower plug assembly is located above the support plate 11, and the water pipe 5 penetrates through the support plate 11.
A ring of sealing gaskets 44 is arranged between the plug 43 and the connecting sleeve.
In specific implementation, the elastic sleeve 41 is a rubber sleeve, and the sealing washer 44 is a rubber washer.
The water pipe 5 is provided with a water pump 52 and an electromagnetic valve 53.
The outer surface of the metal pipe 2 is coated with a layer of absorbent paper 7.
The water absorption paper 7 is wrapped on the outer surface of the metal tube 2 through a ribbon or a rubber band, and as a substitute of the embodiment, the water absorption paper 7 can also be color development paper which develops color when encountering water.
The air pipe 6 is provided with an air pressure valve 62.
The outer peripheral surface of the elastic sleeve 41 is protruded outwards in the circumferential direction to form a plurality of sealing convex rings 412.
The testing method of the metal pipe air tightness testing device comprises the following steps: the method comprises the following steps:
the method comprises the following steps: cutting a metal pipe with proper length, respectively sleeving two elastic sleeves at two ends of the metal pipe to enable the limiting convex ring to be abutted against the end part of the metal pipe, sleeving the two connecting sleeves on the elastic sleeves, screwing the plug head of the upper plug assembly to the elastic sleeve of the upper plug assembly, and screwing the plug head of the lower plug assembly to the elastic sleeve of the lower plug assembly;
step two: the plug head of the upper plug assembly is communicated with an air pipe, the air pipe penetrates through the pressure plate to be communicated with the air pump, the plug head of the lower plug assembly is communicated with a water pipe, and the water pipe penetrates through the support plate to be communicated with the water tank;
step three: the handle is rotated, the screw rod drives the pressure plate to press downwards, so that the metal pipe is fixed between the pressure plate and the supporting plate, and the water absorption paper is wrapped on the outer surface of the metal pipe and is fixed through a binding belt;
step four: the electromagnetic valve is opened, water is conveyed into the metal pipe through the water pump, the electromagnetic valve is closed, the air tightness test is carried out on the metal pipe through the air pump, whether water exists on the water absorption paper is observed, if the water does not exist on the water absorption paper, the air tightness test of the metal pipe is qualified, if the water exists on the water absorption paper, the air tightness test of the metal pipe is unqualified, the electromagnetic valve is opened after the test is finished, and the water in the metal pipe is returned to the water tank through the water pump.
The pressure of the air tightness test in the fourth step is 2-4MPa, and the pressure maintaining test time is 10-15 min.
During specific implementation, the pressure plate can be held by hand in the process of rotating the handle, and the pressure plate is prevented from rotating and only does up-and-down motion.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (8)
1. The utility model provides a tubular metal resonator gas tightness testing arrangement which characterized in that: the plug comprises an upper plug assembly, a lower plug assembly, a support (1) and a positioning mechanism for fixing a metal pipe (2), wherein the upper plug assembly and the lower plug assembly respectively comprise an elastic sleeve (41), a connecting sleeve (42) and a plug head (43), the plug head is connected with the connecting sleeve, the connecting sleeve is sleeved on the elastic sleeve, and the elastic sleeve is sleeved on the metal pipe;
the inner peripheral surface of the elastic sleeve is provided with a limiting convex ring (411), the end part of the connecting sleeve extends outwards in the circumferential direction to form a plurality of guide bulges (421), the guide bulges extend outwards gradually to the outer side of the connecting sleeve along the direction that the connecting sleeve is sleeved on the elastic sleeve, the outer peripheral surface of the connecting sleeve is provided with external threads, and the inner peripheral surface of the plug head is provided with internal threads matched with the external threads;
the choke plug of lower choke plug subassembly communicates with water pipe (5), the water pipe communicates with water tank (51), the choke plug of lower choke plug subassembly communicates with trachea (6), trachea and air pump (61) intercommunication.
2. The metal tube airtightness testing apparatus according to claim 1, wherein: positioning mechanism includes pressure disk (31), lead screw (32) and handle (33), the pressure disk rotate connect in the lead screw, the lead screw passes the support with the handle is connected, it is located to go up the end cap subassembly the below of pressure disk, the trachea passes the pressure disk.
3. The metal tube airtightness testing apparatus according to claim 1, wherein: the support is provided with a supporting plate (11), the lower plug assembly is located above the supporting plate, and the water pipe penetrates through the supporting plate.
4. The metal tube airtightness testing apparatus according to claim 1, wherein: and a circle of sealing washer (44) is arranged between the plug head and the connecting sleeve.
5. The metal tube airtightness testing apparatus according to claim 1, wherein: the water pipe is provided with a water pump (52) and an electromagnetic valve (53).
6. The metal tube airtightness testing apparatus according to claim 1, wherein: the outer surface of the metal pipe is coated with a layer of absorbent paper (7).
7. The metal tube airtightness testing apparatus according to claim 1, wherein: and the air pipe is provided with an air pressure valve (62).
8. The metal tube airtightness testing apparatus according to claim 1, wherein: the peripheral surface of the elastic sleeve is protruded outwards in the circumferential direction to form a plurality of sealing convex rings (412).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121830558.4U CN215262264U (en) | 2021-08-06 | 2021-08-06 | Metal pipe air tightness testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121830558.4U CN215262264U (en) | 2021-08-06 | 2021-08-06 | Metal pipe air tightness testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215262264U true CN215262264U (en) | 2021-12-21 |
Family
ID=79497075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121830558.4U Active CN215262264U (en) | 2021-08-06 | 2021-08-06 | Metal pipe air tightness testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215262264U (en) |
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2021
- 2021-08-06 CN CN202121830558.4U patent/CN215262264U/en active Active
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