CN217953776U - Self-locking leakage test device - Google Patents
Self-locking leakage test device Download PDFInfo
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- CN217953776U CN217953776U CN202221676653.8U CN202221676653U CN217953776U CN 217953776 U CN217953776 U CN 217953776U CN 202221676653 U CN202221676653 U CN 202221676653U CN 217953776 U CN217953776 U CN 217953776U
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Abstract
The utility model discloses a self-locking leakage tester, which comprises an outer sleeve body, wherein an end cap piston body is inserted in the outer sleeve body, the outer side wall of the end cap piston body is close to the inner side wall of the outer sleeve body, and the bottom surface of the bottom plate of the end cap piston body is pressed against the top surface of the bottom plate of the outer sleeve body; a middle hole extending downwards is formed in the middle of the top surface of the plug piston body, a lower through hole extending downwards is formed in the middle of the bottom surface of the middle hole, an upper sleeve body portion extending upwards is formed on the top surface of the edge portion at the top of the middle hole, and the plurality of arc blocks form a circular sleeve body; it can be fixed with the one end centre gripping of the pipeline of heat exchanger, realizes connecting to realize the shutoff effect, its installation centre gripping is convenient, then, the other end expert of its pipeline connects the gas charging head to aerify, and convenient the detection, after the gas charging head dismantles not ventilating, its all arc piece autosegregation make its one end lateral wall that no longer compresses tightly the pipeline of heat exchanger, can follow the one end of the pipeline of heat exchanger and extract, and it dismantles conveniently.
Description
The technical field is as follows:
the utility model relates to a heat exchanger seals check out test set technical field, more specifically says and relates to a from locking-type leakage test utensil.
Background art:
the existing heat exchanger, such as an evaporator, a condenser and the like, needs to detect the tightness of a pipeline after the heat exchanger is processed, needs to install a plug at one end of the pipeline, is fixed by the existing plug in a spot welding mode and the like, is communicated with an inflation head to the other end, is filled with gas for detection, breaks the spot welding position of the plug after the heat exchanger is detected, and is detached, so that the heat exchanger is troublesome to install and detach and has poor effect.
The utility model has the following contents:
the utility model aims at overcoming prior art's is not enough, provide a from locking-type leakage test utensil, it can be fixed with the one end centre gripping of the pipeline of heat exchanger, realize connecting, and realize the shutoff effect, its installation centre gripping is convenient, then, the other end expert of its pipeline connects the gas charging head to aerify, convenient the detection, after the gas charging head dismantles not ventilating, the automatic phase separation of all its arc pieces, make its one end lateral wall that no longer compresses tightly the pipeline of heat exchanger, can follow the one end of the pipeline of heat exchanger and extract, it dismantles conveniently.
The utility model provides a technical problem's scheme is:
a self-locking leakage tester comprises an outer sleeve body, wherein a plug piston body is inserted in the outer sleeve body, the outer side wall of the plug piston body is close to the inner side wall of the outer sleeve body, and the bottom surface of a bottom plate of the plug piston body is pressed against the top surface of the bottom plate of the outer sleeve body;
a middle hole extending downwards is formed in the middle of the top surface of the plug piston body, a lower through hole extending downwards is formed in the middle of the bottom surface of the middle hole, an upper sleeve body portion extending upwards is formed on the top surface of the edge portion of the top of the middle hole, the plurality of arc-shaped blocks form a circular sleeve body which is inserted and sleeved on the upper sleeve body portion, and the outer side wall of the upper portion of each arc-shaped block is a conical wall surface with a smaller upper diameter and a larger lower diameter;
the shaping has the internal thread on the upper portion inside wall of the outer cover barrel, adjusts the end cover and is in the outer cover barrel, and the shaping has the external screw thread on the lateral wall of regulation end cover, and its spiro union is on the upper portion internal thread of the outer cover barrel, and the middle part shaping of adjusting the end cover has the big little toper through-hole of upper portion diameter of lower part diameter, and the upper portion plug bush of all arc pieces is in the toper through-hole, and the toper wall is close to the inside wall of toper through-hole and cooperatees with the inside wall of toper through-hole.
The middle of the top surface of the bottom plate of the outer sleeve body is formed with a circular groove, the plug piston body is a cylindrical body, the outer side wall of the plug piston body is close to the inner side wall of the outer sleeve body, an annular groove is formed in the middle of the outer side wall of the plug piston body, the first sealing ring is nested in the annular groove, the outer side wall of the first sealing ring is pressed against the inner side wall of the outer sleeve body, and the inner side wall of the first sealing ring is pressed against the inner side wall of the annular groove.
The lower through hole is communicated with the circular groove.
Two inner annular grooves are formed in the middle of the inner side wall of the middle hole, the two second sealing rings are nested in the corresponding inner annular grooves, and the wall surfaces of the second sealing rings are tightly attached to the inner side walls of the corresponding inner annular grooves.
The shaping has the arc wall on the bottom inside wall of arc piece, and the cover body portion plug bush is in all arc walls on, and the top surface of arc wall is pressed on the top surface of last cover somatic part, and the shaping has the radially extending limit on the bottom lateral wall of arc piece, and the bottom surface on radially extending limit presses on the limit portion top surface of end cap piston body.
The diameter of the middle through hole of the circular sleeve body is smaller than the inner diameter of the upper sleeve body part and is matched with the outer side wall of one end of the pipeline of the heat exchanger to be detected.
The utility model discloses an outstanding effect is:
it can insert the one end of the pipeline of heat exchanger in the middle part hole of end cap piston body, the other end expert of pipeline connects the gas charging head to ventilate, it promotes the end cap piston body, make all arc pieces draw close together, and make the upper portion inside wall of arc piece press on the one end lateral wall of pipeline, it is fixed with its centre gripping, realize the connection, and realize the shutoff effect, its installation centre gripping is convenient, conveniently detect the pipeline gas tightness of heat exchanger, dismantle the back when the gas charging head, its all arc piece autosegregation, make its one end lateral wall that no longer compresses tightly the pipeline of heat exchanger, can follow the one end of the pipeline of heat exchanger and extract, it dismantles conveniently.
Description of the drawings:
fig. 1 is a partial cross-sectional view of the present invention;
fig. 2 is a schematic view of a partial structure of the arc-shaped block of the present invention;
fig. 3 is a partial top view of the present invention when all arc segments are combined;
fig. 4 is a partial plan view of the adjusting end cap of the present invention.
The specific implementation mode is as follows:
embodiment, as shown in fig. 1 to 4, a self-locking leakage tester comprises an outer sleeve body 10, wherein a plug piston body 20 is inserted into the outer sleeve body 10, the outer side wall of the plug piston body 20 is close to the inner side wall of the outer sleeve body 10, and the bottom surface of the bottom plate of the plug piston body 20 is pressed against the top surface of the bottom plate of the outer sleeve body 10;
a middle hole 21 extending downwards is formed in the middle of the top surface of the plug piston body 20, a lower through hole 22 extending downwards is formed in the middle of the bottom surface of the middle hole 21, an upper sleeve body part 23 extending upwards is formed on the top surface of the edge part at the top of the middle hole 21, a plurality of arc-shaped blocks 30 form a circular sleeve body, the circular sleeve body is inserted and sleeved on the upper sleeve body part 23, and the outer side wall of the upper part of each arc-shaped block 30 is a conical wall surface 31 with a small upper diameter and a large lower diameter;
the upper portion inside wall of outer cover barrel 10 is formed with the internal thread, adjusts the end cover 40 and is located outer cover barrel 10, and the outer lateral wall of adjusting the end cover 40 is formed with the external screw thread, and its spiro union is on the upper portion internal thread of outer cover barrel 10, and the middle part of adjusting the end cover 40 is formed with the big little toper through-hole 41 of upper portion diameter of lower part diameter, and the upper portion plug bush of all arc pieces 30 is in toper through-hole 41, and toper wall 31 is close to the inside wall of toper through-hole 41 and cooperatees with the inside wall of toper through-hole 41.
Further, a circular groove 11 is formed in the middle of the top surface of the bottom plate of the outer sleeve body 10, the plug piston body 20 is a cylindrical body, the outer side wall of the plug piston body is close to the inner side wall of the outer sleeve body 10, an annular groove 24 is formed in the middle of the outer side wall of the plug piston body 20, the first seal ring 1 is nested in the annular groove 24, the outer side wall of the first seal ring 1 is pressed against the inner side wall of the outer sleeve body 10, and the inner side wall of the first seal ring 1 is pressed against the inner side wall of the annular groove 24.
Further, the lower through hole 22 communicates with the circular groove 11.
Furthermore, two inner annular grooves 211 are formed in the middle of the inner side wall of the middle hole 21, two second sealing rings 2 are nested in the corresponding inner annular grooves 211, and the wall surfaces of the second sealing rings 2 are tightly attached to the inner side walls of the corresponding inner annular grooves 211.
Further, the bottom surface of the adjusting end cap 40 is formed with a bottom annular groove 42, the upper sealing ring 3 is nested in the bottom annular groove 42, and the top surface of the upper sealing ring 3 is pressed against the top surface of the bottom annular groove 42. The top surface left part and the right part of adjusting end cover 40 all form and have the centre gripping shrinkage pool, can insert the centre gripping shrinkage pool with two tip of centre gripping instrument and afterwards rotate, can be rotatory adjusting end cover 40, adjust it from top to bottom along the internal thread of the upper portion inside wall of outer cover barrel 10, realize installation and dismantlement.
Further, the arc-shaped grooves are formed in the inner side wall of the bottom of the arc-shaped block 30, the upper sleeve body 23 is inserted into all the arc-shaped grooves, the top surfaces of the arc-shaped grooves are pressed against the top surface of the upper sleeve body 23, the outer side wall of the bottom of the arc-shaped block 30 is formed with the radially extending edges 32, and the bottom surfaces of the radially extending edges 32 are pressed against the top surface of the edge of the plug piston body 20.
Further, the top surface of the radially extending edge 32 faces the upper seal ring 3.
Furthermore, the diameter of the middle through hole of the circular sleeve body is smaller than the inner diameter of the upper sleeve body part 23 and is matched with the outer side wall of one end of the pipeline of the heat exchanger to be detected.
This embodiment is when using, it can insert the one end of the body of heat exchanger in middle part hole 21, make the inside wall of all second sealing washers 2 press on the lateral wall of the one end of body, then, other end through the pipeline leads to and connects the gas head, aerify, gaseous entering is in middle part hole 21, then, get into circular recess 11 through lower through-hole 22, and after constantly letting in gas, make constantly get into gas in the circular recess 11, promote end cap piston body 20, in the lifting process, all arc pieces 30 promote, the inside wall of its toper wall 31 hugs closely toper through-hole 41 and promotes along with the inside wall of toper through-hole 41, make all arc pieces 30 draw close together, make the upper portion inside wall of arc piece 30 press on the outside wall of the one end of body, realize the centre gripping.
Thereby it is fixed to realize the centre gripping, realizes the installation, then, the other end of pipeline leads to connect the inflation head to aerify and to detect, detects the completion back, and the inflation head dismantles the back, and its is gaseous to run out from the pipeline, through the dead weight whereabouts of arc piece 30 and end cap piston body 20 for all arc pieces 30 part each other, make it no longer press on the one end lateral wall of pipeline, can with it follow the one end of pipeline extract can, its dismantlement is convenient.
The centre gripping installation and the dismantlement of this embodiment are all very convenient, and for harmless installation dismantlement, effectual.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (6)
1. A self-locking leakage tester comprises an outer sleeve body (10), and is characterized in that: a plug piston body (20) is inserted into the outer sleeve body (10), the outer side wall of the plug piston body (20) is close to the inner side wall of the outer sleeve body (10), and the bottom surface of the bottom plate of the plug piston body (20) is pressed against the top surface of the bottom plate of the outer sleeve body (10);
a middle hole (21) extending downwards is formed in the middle of the top surface of the plug piston body (20), a lower through hole (22) extending downwards is formed in the middle of the bottom surface of the middle hole (21), an upper sleeve body part (23) extending upwards is formed on the top surface of the edge part of the top of the middle hole (21), a plurality of arc-shaped blocks (30) form a circular sleeve body, the circular sleeve body part is inserted and sleeved on the upper sleeve body part (23), and the outer side wall of the upper part of each arc-shaped block (30) is a conical wall surface (31) with a small upper part diameter and a large lower part diameter;
the shaping has the internal thread on the upper portion inside wall of the outer cover barrel (10), it is in outer cover barrel (10) to adjust end cover (40), the shaping has the external screw thread on the lateral wall of adjusting end cover (40), its spiro union is on the upper portion internal thread of outer cover barrel (10), the middle part shaping of adjusting end cover (40) has the big little toper through-hole of upper portion diameter of lower part diameter (41), the upper portion plug bush of all arc pieces (30) is in toper through-hole (41), toper wall (31) are close to the inside wall of toper through-hole (41) and cooperate with the inside wall of toper through-hole (41).
2. The self-locking leakage test device according to claim 1, wherein: the inner side wall of the outer sleeve body (10) is pressed against the inner side wall of the outer sleeve body (10), the inner side wall of the first sealing ring (1) is pressed against the inner side wall of the annular groove (24), and the inner side wall of the first sealing ring (1) is pressed against the inner side wall of the annular groove (24).
3. The self-locking leakage test device according to claim 2, wherein: the lower through hole (22) is communicated with the circular groove (11).
4. The self-locking leakage test device according to claim 1, wherein: two inner annular grooves (211) are formed in the middle of the inner side wall of the middle hole (21), two second sealing rings (2) are nested in the corresponding inner annular grooves (211), and the wall surfaces of the second sealing rings (2) are tightly attached to the inner side walls of the corresponding inner annular grooves (211).
5. The self-locking leakage test device according to claim 1, wherein: the shaping has the arc wall on the bottom inside wall of arc piece (30), goes up cover body portion (23) plug bush in all arc walls, and the top surface of arc wall is pressed on the top surface of last cover body portion (23), and the shaping has radial extension limit (32) on the bottom lateral wall of arc piece (30), and the bottom surface of radial extension limit (32) presses on the limit portion top surface of end cap piston body (20).
6. The self-locking leakage test device of claim 1, wherein: the diameter of the middle through hole of the circular sleeve body is smaller than the inner diameter of the upper sleeve body part (23) and matched with the outer side wall of one end of the pipeline of the heat exchanger to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221676653.8U CN217953776U (en) | 2022-06-30 | 2022-06-30 | Self-locking leakage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221676653.8U CN217953776U (en) | 2022-06-30 | 2022-06-30 | Self-locking leakage test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217953776U true CN217953776U (en) | 2022-12-02 |
Family
ID=84218383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221676653.8U Active CN217953776U (en) | 2022-06-30 | 2022-06-30 | Self-locking leakage test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217953776U (en) |
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2022
- 2022-06-30 CN CN202221676653.8U patent/CN217953776U/en active Active
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