CN217930749U - Airtight detection structure of expansion tank - Google Patents
Airtight detection structure of expansion tank Download PDFInfo
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- CN217930749U CN217930749U CN202221336570.4U CN202221336570U CN217930749U CN 217930749 U CN217930749 U CN 217930749U CN 202221336570 U CN202221336570 U CN 202221336570U CN 217930749 U CN217930749 U CN 217930749U
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- expansion tank
- connector
- gas
- air guide
- air
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Abstract
The utility model aims at providing a simple structure and the convenient expansion tank airtight detection structure that carries out the gas tightness to expansion tank and detect. The utility model discloses a connector, gas valve core, first sealing washer and gas are examined and are connected, be equipped with first air guide passageway on the connector, the one end of connector is connected the back with expansion tank's water swivel first air guide passageway is linked together with expansion tank's inner chamber, it is equipped with the installation passageway to examine on the joint to be equipped with on the gas valve core adaptation is in connect behind the installation passageway on the gas is examined the joint, the gas is examined the articulate and is in the other end of connector, first sealing washer sets up the gas is examined the joint with between the connector, the installation passageway with first air guide passageway is linked together. The utility model discloses be applied to expansion tank technical field.
Description
Technical Field
The utility model discloses be applied to expansion tank technical field, in particular to airtight detection structure of expansion tank.
Background
The expansion water tank is used in a closed water circulation system, has the functions of balancing water quantity and pressure, and avoids frequent opening of a safety valve and frequent water replenishing of an automatic water replenishing valve. Expansion tank includes casing, lower casing, rubber membrane, water swivel and gas connection, when assembling expansion tank, welds the water swivel at last casing earlier, and the gas connection welds the casing under, and rubber membrane fixed connection is in the inboard of casing down, and last casing and lower casing welding form an expansion tank again, and the rubber membrane separates into two cavitys with expansion tank's inside at last. However, during the welding assembly, there is a problem that welding is missed in the case of manual operation error, and the airtightness of the expansion tank is poor. If can design a simple structure and conveniently carry out the airtight detection structure of expansion tank that the gas tightness detected to expansion tank, then can solve above-mentioned problem well.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a simple structure and conveniently carry out the airtight detection structure of expansion tank that the gas tightness detected to expansion tank.
The utility model adopts the technical proposal that: the utility model discloses a connector, gas valve core, first sealing washer and gas detection connect, be equipped with first air guide passageway on the connector, the one end of connector is connected the back with expansion tank's water swivel first air guide passageway is linked together with expansion tank's inner chamber, be equipped with the installation passageway on the gas detection connects, the gas valve core adaptation is in connect behind the installation passageway on the gas detection connects, the gas detection articulate is in the other end of connector, first sealing washer sets up the gas detection connect with between the connector, the installation passageway with first air guide passageway is linked together.
Furthermore, the gas valve core comprises an installing head, a guide pillar and a spring, a second gas guide channel is arranged on the installing head, the outer wall of the installing head is in threaded fit with the inner wall of the gas detection joint, the guide pillar penetrates through the second gas guide channel, a limiting block is arranged at one end of the guide pillar, a sealing block is arranged at the other end of the guide pillar, the spring is sleeved on the guide pillar, the spring is located between the limiting block and the installing head, a plurality of gas guide holes are formed in one end, close to the limiting block, of the installing head, and the gas guide holes are communicated with the second gas guide channel.
Further, the gas detection joint comprises a first threaded sleeve, a second threaded sleeve and an installation block, the first threaded sleeve is vertically arranged on the upper end face of the installation block, the second threaded sleeve is vertically arranged on the lower end face of the installation block, and the first threaded sleeve is communicated with the second threaded sleeve.
Furthermore, the lower terminal surface of installation piece is equipped with first mounting groove, first sealing washer adaptation is in the first mounting groove.
Further, the one end of connector is equipped with the second mounting groove, expansion tank airtightness detection structure still includes the second sealing washer, the second sealing washer adaptation is in the second mounting groove, the second sealing washer is located between connector and expansion tank's the water swivel.
Further, the sealing block is round, and the diameter of the sealing block is larger than that of the second air guide channel.
Further, the second thread insert is in threaded fit with the inner wall of the connector.
Furthermore, one end of the connector is provided with an internal thread, and the internal thread is matched with the external thread of the water joint.
The utility model has the advantages that: the one end of connector is connected the back with expansion tank's water swivel, has realized the utility model discloses with expansion tank's connection, then recycle airtight detector comes to carry out the leak hunting operation to expansion tank. Wherein, the air-tight detector is provided with an air injection pipe, the end part of the air injection pipe is provided with an air tap joint, and the air tap joint is provided with a thimble. Firstly, an air tap joint is installed on the air detection joint, a thimble on the air tap joint can stretch out the guide pillar top of the air valve core at the moment, so that an air path in the air valve core is in an open state, then the air tightness detector injects air into the expansion water tank through an air injection pipe, and the air sequentially enters the expansion water tank from the installation channel and the first air guide channel. And finally, if the air pressure value displayed on the air tightness detector is within a preset range value, the air tightness test of the expansion water tank is qualified, otherwise, the air tightness test of the expansion water tank is unqualified. Therefore, the utility model is not only simple in structure, the convenience carries out the gas tightness to expansion tank moreover and detects, guarantees expansion tank's production quality, and the practicality is strong.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is an exploded view of the present invention;
FIG. 3 is a perspective view of the connector;
FIG. 4 is a cross-sectional view of the connection head;
FIG. 5 is a perspective view of the gas detection fitting;
FIG. 6 is a perspective view of the air valve cartridge;
FIG. 7 is a cross-sectional view of the gas spool;
fig. 8 is an exemplary view of the present invention.
Detailed Description
As shown in fig. 1 to 8, in this embodiment, the utility model discloses a connector 1, gas valve core 2, first sealing washer 3 and gas detection connect 4, be equipped with first air guide channel 5 on the connector 1, the one end of connector 1 is connected the back with expansion tank 6's water swivel 7 first air guide channel 5 is linked together with expansion tank 6's inner chamber, gas detection connects and is equipped with installation passageway 8 on 4, gas valve core 2 adaptation is in connect behind the installation passageway 8 on the gas detection connects 4, gas detection connects 4 and connects the other end of connector 1, first sealing washer 3 sets up gas detection connects 4 with between the connector 1, installation passageway 8 with first air guide channel 5 is linked together.
In this embodiment, the air valve core 2 includes an installation head 9, a guide pillar 10 and a spring 11, the installation head 9 is provided with a second air guide channel 12, the outer wall of the installation head 9 is in threaded fit with the inner wall of the gas detection joint 4, the guide pillar 10 passes through the second air guide channel 12, one end of the guide pillar 10 is provided with a limit block 13, the other end of the guide pillar 10 is provided with a seal block 14, the spring 11 is sleeved on the guide pillar 10, the spring 11 is located between the limit block 13 and the installation head 9, one end of the installation head 9 close to the limit block 13 is provided with a plurality of air guide holes 15, and the air guide holes 15 are communicated with the second air guide channel 12.
In this embodiment, the gas detection joint 4 includes a first threaded sleeve 16, a second threaded sleeve 17 and a mounting block 18, the first threaded sleeve 16 is vertically disposed on an upper end surface of the mounting block 18, the second threaded sleeve 17 is vertically disposed on a lower end surface of the mounting block 18, and the first threaded sleeve 16 is communicated with the second threaded sleeve 17.
In this embodiment, the lower end surface of the mounting block 18 is provided with a first mounting groove 21, and the first sealing ring 3 is fitted in the first mounting groove 21.
In this embodiment, the one end of connector 1 is equipped with second mounting groove 22, expansion tank airtightness detection structure still includes second sealing washer 23, second sealing washer 23 adaptation is in the second mounting groove 22, second sealing washer 23 is located between connector 1 and expansion tank 6's water swivel 7.
In this embodiment, the sealing block 14 has a circular shape, and the diameter of the sealing block 14 is larger than that of the second gas guide channel 12.
In this embodiment, the second thread insert 17 is threadedly engaged with the inner wall of the connector 1.
In this embodiment, one end of the connector 1 is provided with an internal thread 24, and the internal thread 24 is matched with the external thread of the water joint 7.
In this embodiment, the working principle of the present invention is as follows:
the one end of connector 1 is connected the back with expansion tank 6's water swivel 7, has realized the utility model discloses with expansion tank 6's connection, then recycle airtight detector comes to carry out the leak hunting operation to expansion tank 6. Wherein, the air-tight detector is provided with an air injection pipe, the end part of the air injection pipe is provided with an air tap joint, and the air tap joint is provided with a thimble.
Firstly, the air tap joint is installed on the first threaded sleeve 16 of the air detection joint 4 in a threaded fit manner, at this time, the thimble on the air tap joint will push the guide pillar 10 on the air valve core 2 out, so that the sealing block 14 is far away from the installation head 9, so that the second air guide channel 12 is communicated with the first air guide channel 5, at this time, the spring 11 is in a compressed state, then the air tightness detector injects air into the expansion water tank 6 through the air injection pipe, and the air enters the expansion water tank 6 from the air guide hole 15, the second air guide channel 12, the installation channel 8 and the first air guide channel 5 in sequence. And finally, if the air pressure value displayed on the air tightness detector is within a preset range value, the air tightness test of the expansion water tank 6 is qualified, otherwise, the air tightness test is unqualified.
After the leak detection operation is completed, the air tap joint is disassembled, the guide post 10 retracts and resets under the elastic force of the spring 11, so that the sealing block 14 is pressed against the mounting head 9, and the air port of the second air guide channel 12 is blocked.
Therefore, the utility model is not only simple in structure, conveniently carry out the gas tightness to expansion tank 6 moreover and detect, guarantee expansion tank 6's production quality, the practicality is strong.
Claims (8)
1. Expansion tank airtight detection structure, its characterized in that: it includes connector (1), gas valve core (2), first sealing washer (3) and gas detection connects (4), be equipped with first air guide passageway (5) on connector (1), the one end of connector (1) is connected the back with water swivel (7) of expansion tank (6) first air guide passageway (5) are linked together with the inner chamber of expansion tank (6), be equipped with installation passageway (8) on gas detection connects (4), gas valve core (2) adaptation is in connect behind installation passageway (8) on gas detection connects (4), gas detection connects (4) and connects the other end of connector (1), first sealing washer (3) set up gas detection connects (4) with between connector (1), installation passageway (8) with first air guide passageway (5) are linked together.
2. The expansion tank airtightness detection structure according to claim 1, wherein: the air valve core (2) comprises an installing head (9), a guide post (10) and a spring (11), a second air guide channel (12) is arranged on the installing head (9), the outer wall of the installing head (9) is in threaded fit with the inner wall of the air detection joint (4), the guide post (10) penetrates through the second air guide channel (12), a limiting block (13) is arranged at one end of the guide post (10), a sealing block (14) is arranged at the other end of the guide post (10), the spring (11) is sleeved on the guide post (10), the spring (11) is located between the limiting block (13) and the installing head (9), a plurality of air guide holes (15) are formed in one end, close to the limiting block (13), of the installing head (9), and the air guide holes (15) are communicated with the second air guide channel (12).
3. The expansion tank airtightness detection structure according to claim 1, wherein: the gas detection joint (4) comprises a first threaded sleeve (16), a second threaded sleeve (17) and an installation block (18), wherein the first threaded sleeve (16) is vertically arranged on the upper end face of the installation block (18), the second threaded sleeve (17) is vertically arranged on the lower end face of the installation block (18), and the first threaded sleeve (16) is communicated with the second threaded sleeve (17).
4. The expansion tank airtightness detection structure according to claim 3, wherein: the lower terminal surface of installation piece (18) is equipped with first mounting groove (21), first sealing washer (3) adaptation is in first mounting groove (21).
5. The expansion tank airtightness detection structure according to claim 1, wherein: the one end of connector (1) is equipped with second mounting groove (22), expansion tank airtight detection structure still includes second sealing washer (23), second sealing washer (23) adaptation is in second mounting groove (22), second sealing washer (23) are located between water swivel (7) of connector (1) and expansion tank (6).
6. The expansion tank airtightness detection structure according to claim 2, wherein: the sealing block (14) is in a circular shape, and the diameter of the sealing block (14) is larger than that of the second air guide channel (12).
7. The expansion tank airtightness detection structure according to claim 3, wherein: and the second thread insert (17) is in threaded fit with the inner wall of the connector (1).
8. The expansion tank airtightness detection structure according to claim 1, wherein: one end of the connector (1) is provided with an internal thread (24), and the internal thread (24) is matched with the external thread of the water joint (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221336570.4U CN217930749U (en) | 2022-05-31 | 2022-05-31 | Airtight detection structure of expansion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221336570.4U CN217930749U (en) | 2022-05-31 | 2022-05-31 | Airtight detection structure of expansion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217930749U true CN217930749U (en) | 2022-11-29 |
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ID=84177775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221336570.4U Active CN217930749U (en) | 2022-05-31 | 2022-05-31 | Airtight detection structure of expansion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217930749U (en) |
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2022
- 2022-05-31 CN CN202221336570.4U patent/CN217930749U/en active Active
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