Fluorine-adding single gauge valve with pressure gauge not prone to leakage during replacement

Abstract

The utility model discloses a fluorination single gauge valve with less possibility of leakage during pressure gauge replacement, which comprises a single gauge valve main body, a pressure gauge and a connecting component, the pressure gauge is mounted on the single gauge valve main body through the connecting component, and the connecting component consists of a quick connection male head, a quick connection female head, a connecting pipe, a movable pipe, a limiting disc and a first spring. The quick-connection male head is arranged on the pressure gauge and inserted into the quick-connection female head, a threaded hole is formed in the bottom of the quick-connection female head, the tail end of the threaded hole forms a first abutting face in the quick-connection female head, an elastic sealing ring is arranged in the threaded hole and abuts against the first abutting face, and one end of the connecting pipe is screwed on the threaded hole. According to the fluorine-adding single meter valve, the movable pipe, the limiting disc and the first spring are matched, so that after the pressure meter is detached, the connecting female head is in a blocked state, a refrigerant cannot leak out through the connecting female head, the anti-leakage performance of the fluorine-adding single meter valve during meter replacement is guaranteed, and the refrigerant is not prone to being wasted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of table valve, in particular to the technical field of fluorine adding single table valve. BACKGROUND

[0002] The refrigerant will reduce after long time use of air conditioner, in order to guarantee the use effect of air conditioner, need to carry out fluorine adding operation, need to use fluorine adding table valve when carrying out fluorine adding operation, usually fluorine adding single table valve or fluorine adding double table valve, need to use high pressure pressure gauge and low pressure pressure gauge when using fluorine adding single table valve to carry out fluorine adding operation, need to remove the pressure gauge originally installed on fluorine adding single table valve and install another kind of pressure gauge again when replacing one kind of pressure gauge into another kind of pressure gauge, refrigerant is easy to leak from the installation port of pressure gauge in the replacement process, not only can cause the waste of refrigerant, but also refrigerant is easy to cause harm to operating personnel. SUMMARY

[0003] The utility model discloses a fluorine adding single table valve that is not easy to leak when replacing pressure gauge, which can prevent refrigerant from leaking when replacing pressure gauge of the fluorine adding single table valve.

[0004] To achieve the above object, the utility model provides a fluorine adding single table valve that is not easy to leak when replacing pressure gauge, including single table valve main part, pressure gauge, connecting component, the pressure gauge is installed on single table valve main part through connecting component, and connecting component is composed of quick -wired male head, quick -wired female head, connecting pipe, movable pipe, limit disc, first spring, the quick -wired male head is arranged on the pressure gauge, and the quick -wired male head is inserted in the quick -wired female head, and the bottom of quick -wired female head is equipped with a threaded hole, and the end of threaded hole forms a first abutment face in quick -wired female head inside, and the threaded hole is equipped with an elastic sealing ring, and the elastic sealing ring abuts against the first abutment face, one end of connecting pipe is screwed on threaded hole, and the other end of connecting pipe is screwed on single table valve main part, and the screwed end of connecting pipe in threaded hole abuts against the elastic sealing ring, the movable pipe is located in the inside of the combination of quick -wired female head and connecting pipe, and the quick -wired male head abuts against one end of movable pipe, and the other end of movable pipe is fixed with limit disc, and at least one side through -hole is equipped on movable pipe lateral wall, and the side through -hole and limit disc are located in the inside of connecting pipe, and there is a gap between limit disc and the inner wall of connecting pipe, the inside of connecting pipe is equipped with a second abutment face, and a first spring in compression state is clamped between the second abutment face and limit disc, after the quick -wired male head and quick -wired female head completely separate, limit disc tightly abuts against the elastic sealing ring and the first spring is in compression state.

[0005] As preferred, a hexagonal screw ring is provided on the outer wall of the connecting pipe.

[0006] As preferred, an auxiliary column is provided at the center of the bottom of the limit disc, and the first spring surrounds the auxiliary column.

[0007] As preferred, the quick female head is composed of a connecting head, a movable sleeve and a second spring, the connecting head is internally provided with a first communicating hole, the first communicating hole is communicated with the threaded hole, the quick male head is internally provided with a second communicating hole, the quick male head is inserted into the first communicating hole, the connecting head is internally provided with a third abutting surface, the third abutting surface is part of the inner wall of the first communicating hole, the quick male head is externally provided with a fourth abutting surface, the third abutting surface abuts against the fourth abutting surface, the fourth abutting surface is above the third abutting surface, the inner wall of the first communicating hole is provided with an annular mounting groove, a first sealing ring is embedded in the annular mounting groove, the first sealing ring is in close contact with the inner wall of the annular mounting groove and the outer wall of the quick male head, at least one side hole is arranged on the side wall of the first communicating hole, each side hole is provided with a steel ball, the outer wall of the quick male head is provided with a limiting groove corresponding to the side hole, the steel ball is partially located in the side hole and partially located in the limiting groove, the limiting groove is adapted to the steel ball, the end of the side hole close to the inner wall of the first communicating hole is provided with a limiting wall abutting against the steel ball, the outer wall of the connecting head is sleeved with a movable sleeve, the inner wall of the movable sleeve is provided with a convex ring, the outer wall of the connecting head is provided with a fifth abutting surface, the fifth abutting surface is below the convex ring, a second spring in a compressed state is clamped between the lower end surface of the convex ring and the fifth abutting surface, the second spring is sleeved on the outer wall of the connecting head, the inner wall of the convex ring abuts against the steel ball, the outer wall of the connecting head is provided with an annular embedding groove, the annular embedding groove is above the limiting groove and the annular mounting groove, a clasp ring is embedded in the annular embedding groove, a part of the clasp ring is located outside the annular embedding groove, the clasp ring abuts against the upper end surface of the convex ring, the distance between the inner wall of the movable sleeve and the outer wall of the area where the side hole of the connecting head is located is smaller than the outer diameter of the steel ball, and the distance between the inner wall of the movable sleeve and the inner wall of the area where the side hole of the connecting head is located is greater than the outer diameter of the steel ball.

[0008] The utility model discloses the beneficial effects: the utility model discloses through cooperation of movable pipe, limit disc, first spring, make pressure gauge dismounts, and the connecting female head is in the state of being blocked, and the refrigerant cannot leak out through the connecting female head, guarantee the anti -leakage performance when fluorine -containing single -table valve changes table, and refrigerant is not easy to cause waste.

[0009] The features and advantages of the utility model will be described in detail in conjunction with the drawings. DRAWINGS

[0010] Figure 1 It is the front view of the fluorine -containing single -table valve of the utility model not easy to leak when replacing pressure gauge;

[0011] Figure 2 It is the main view section of the connecting assembly of the fluorine -containing single -table valve of the utility model not easy to leak when replacing pressure gauge.

[0012] In the figure: 1-single table valve body, 2-fast male head, 3-fast female head, 4-connection pipe, 5-movable pipe, 10-pressure gauge, 11-connection assembly, 21-clasp ring, 30-thread hole, 31-elastic sealing ring, 32-connection head, 33-steel ball, 34-first sealing ring, 35-movable sleeve, 36-convex ring, 37-second spring, 40-hexagonal screw ring, 50-side through hole, 51-limiting disc, 52-assistant column, 55-first spring. DETAILED DESCRIPTION

[0013] Implementation I:

[0014] Referring to Figure 1 The utility model relates to a kind of fluorine-added single table valve of replacing pressure gauge not easy to leak, including single table valve body 1, pressure gauge 10, connection assembly 11, the pressure gauge 10 is installed on single table valve body 1 by connection assembly 11.

[0015] Referring to Figure 2 The connection assembly 11 is composed of fast male head 2, fast female head 3, connection pipe 4, movable pipe 5, limiting disc 51 and first spring 55, the fast male head 2 is arranged on pressure gauge 10, the fast male head 2 is inserted in fast female head 3, the bottom of fast female head 3 is provided with a thread hole 30, the end of thread hole 30 forms a first abutting surface inside fast female head 3, and elastic sealing ring 31 is arranged inside thread hole 30, and elastic sealing ring 31 abuts against the first abutting surface.

[0016] One end of connection pipe 4 is screwed on thread hole 30, the other end of connection pipe 4 is screwed on single table valve body 1, and the end of connection pipe 4 screwed into thread hole 30 abuts against elastic sealing ring 31.

[0017] The movable pipe 5 is located inside the combination of fast female head 3 and connection pipe 4, the fast male head 2 abuts against one end of movable pipe 5, the other end of movable pipe 5 is fixed with limiting disc 51, at least one side through hole 50 is arranged on the side wall of movable pipe 5, the side through hole 50 and limiting disc 51 are located inside connection pipe 4, there is a gap between limiting disc 51 and the inner wall of connection pipe 4, a second abutting surface is arranged inside connection pipe 4, the first spring 55 in compression state is clamped between the second abutting surface and limiting disc 51, and after the fast male head 2 is completely separated from the fast female head 3, the limiting disc 51 tightly abuts against the elastic sealing ring 31, and the first spring 55 is in compression state.

[0018] In order to make connection pipe 4 can be conveniently screwed on single table valve body 1, a hexagonal screw ring 40 protruding outward is arranged on the outer wall of connection pipe 4.

[0019] In order to make first spring 55 not to be misaligned with limiting disc 51, an assistant column 52 is arranged at the bottom center of limiting disc 51, and first spring 55 surrounds the assistant column 52.

[0020] Embodiment two:

[0021] On the basis of embodiment one, the female quick connector 3 is composed of a connecting head 32, a movable sleeve 35 and a second spring 37, the connecting head 32 is internally provided with a first communicating hole, the first communicating hole is in communication with the threaded hole 30, the male quick connector 2 is internally provided with a second communicating hole, the male quick connector 2 is inserted into the first communicating hole, the connecting head 32 is internally provided with a third abutting surface, the third abutting surface is part of the inner wall of the first communicating hole, the male quick connector 2 is externally provided with a fourth abutting surface, the third abutting surface abuts against the fourth abutting surface, the fourth abutting surface is located above the third abutting surface, the inner wall of the first communicating hole is provided with an annular mounting groove, the annular mounting groove is embedded with a first sealing ring 34, the first sealing ring 34 is in close contact with the inner wall of the annular mounting groove and the outer wall of the male quick connector 2, at least one side hole is arranged on the side wall of the first communicating hole, each side hole is provided with a steel ball 33, the outer wall of the male quick connector 2 is provided with a limiting groove corresponding to the side hole, the steel ball 33 is partially located in the side hole and partially located in the limiting groove, the limiting groove is adapted to the steel ball 33, the end of the side hole close to the inner wall of the first communicating hole is provided with a limiting wall abutting against the steel ball 33, the connecting head 32 is externally sleeved with a movable sleeve 35, the inner wall of the movable sleeve 35 is provided with a convex ring 36, the outer wall of the connecting head 32 is provided with a fifth abutting surface, the fifth abutting surface is located below the convex ring 36, a second spring 37 in a compressed state is clamped between the lower end surface of the convex ring 36 and the fifth abutting surface, the second spring 37 is sleeved on the outer wall of the connecting head 32, the inner wall of the convex ring 36 abuts against the steel ball 33, an annular embedding groove is arranged on the outer wall of the connecting head 32, the annular embedding groove is located above the limiting groove and the annular mounting groove, a clasp 21 is embedded in the annular embedding groove, a part of the clasp 21 is located outside the annular embedding groove, the clasp 21 abuts against the upper end surface of the convex ring 36, the distance between the inner wall of the movable sleeve 35 and the outer wall of the area where the side hole of the connecting head 32 is located is smaller than the outer diameter of the steel ball 33, and the distance between the inner wall of the movable sleeve 35 and the inner wall of the area where the side hole of the connecting head 32 is located is greater than the outer diameter of the steel ball 33.

[0022] The working process of the utility model:

[0023] In the working process of the utility model, when the pressure gauge 10 is removed from the single gauge valve main body 1, the male quick connector 2 of the pressure gauge 10 is separated from the female quick connector 3, at this time, the male quick connector 2 no longer abuts against the movable pipe 5, the first spring 55 pushes the limiting disc 51 and the movable pipe 5 to move upwards together until the limiting disc 51 is abutted by the elastic sealing ring 31, at this time, because a sealing structure is formed between the limiting disc 51 and the elastic sealing ring 31, the refrigerant cannot leak out through the female quick connector 3.

[0024] When the pressure gauge 10 is installed on the single gauge valve body 1, the quick connecting male head 2 on the pressure gauge 10 is inserted into the quick connecting female head 3, at this time the quick connecting male head 2 pushes the movable tube 5 and the limiting disc 51 to move downward together, the limiting disc 51 is separated from the elastic sealing ring 31, the movable tube 5 is communicated with the connecting tube 4 through the side through hole 50 on the side wall of the movable tube 5, the refrigerant can enter into the connecting male head 2 and then into the pressure gauge 10.

[0025] The above examples are used to illustrate the present application, but not to limit the present application, and any simple transformation of the present application is within the protection scope of the present application.

Claims

1. A leak-free fluorinated single gauge valve for replacing pressure gauges, characterized by: The utility model relates to a single gauge valve body (1), pressure gauge (10), connecting assembly (11), pressure gauge (10) is installed on single gauge valve body (1) through connecting assembly (11), connecting assembly (11) is composed of quick -wired male head (2), quick -wired female head (3), connecting pipe (4), movable pipe (5), limit disc (51), first spring (55), quick -wired male head (2) is set up on pressure gauge (10), quick -wired male head (2) is inserted in quick -wired female head (3), and quick -wired female head (3) bottom is equipped with a threaded hole (30), and the end of threaded hole (30) forms a first abutment surface in quick -wired female head (3) inside, and threaded hole (30) is equipped with an elastic sealing ring (31) inside, and elastic sealing ring (31) abuts against first abutment surface, connecting pipe (4) one end is screwed on threaded hole (30), and connecting pipe (4) other end is screwed on single gauge valve body (1), and the end of connecting pipe (4) in threaded hole (30) abuts against elastic sealing ring (31), movable pipe (5) is located in the inside of the combination of quick -wired female head (3) and connecting pipe (4), and quick -wired male head (2) abuts against movable pipe (5) one end, and movable pipe (5) other end is fixed with limit disc (51), and movable pipe (5) side wall is equipped with at least one side through -hole (50), and side through -hole (50) and limit disc (51) are located in connecting pipe (4) inside, and there is a gap between limit disc (51) and the inner wall of connecting pipe (4), connecting pipe (4) inside is equipped with a second abutment surface, and a first spring (55) in compression state is clamped between second abutment surface and limit disc (51), after quick -wired male head (2) is completely separated from quick -wired female head (3), limit disc (51) is tightly attached to elastic sealing ring (31) and first spring (55) is in compression state.

2. A fluorinated leak-free single gauge valve for replacing pressure gauges as claimed in claim 1, wherein: The outer wall of connecting pipe (4) is equipped with a circle of outward bulgy hexagonal screw ring (40).

3. A leak-free fluorinated single gauge valve for replacing pressure gauges, as claimed in claim 1, wherein: The bottom center of limit disc (51) is equipped with an auxiliary column (52), and first spring (55) surrounds auxiliary column (52).

4. The leak-free fluorinated single gauge valve for replacement pressure gauges of claim 1, wherein: The quick female head (3) is composed of a connecting head (32), a movable sleeve (35) and a second spring (37). The connecting head (32) is internally provided with a first communicating hole, which is in communication with the threaded hole (30). The quick male head (2) is internally provided with a second communicating hole, and the quick male head (2) is inserted into the first communicating hole. The connecting head (32) is internally provided with a third abutting surface, which is part of the inner wall of the first communicating hole. The quick male head (2) is externally provided with a fourth abutting surface, and the third abutting surface abuts against the fourth abutting surface. The fourth abutting surface is located above the third abutting surface. The inner wall of the first communicating hole is provided with an annular mounting groove, and the annular mounting groove is embedded with a first sealing ring (34). The first sealing ring (34) is in close contact with the inner wall of the annular mounting groove and the outer wall of the quick male head (2). The sidewall of the first communicating hole is provided with at least one side hole, and each side hole is provided with a steel ball (33). The outer wall of the quick male head (2) is provided with a limiting groove corresponding to the side hole. A part of the steel ball (33) is located in the side hole, and the other part is located in the limiting groove. The limiting groove is adapted to the steel ball (33). The end of the side hole close to the inner wall of the first communicating hole is provided with a limiting wall abutting against the steel ball (33). The connecting head (32) is externally sleeved with a movable sleeve (35). The inner wall of the movable sleeve (35) is provided with a convex ring (36). The outer wall of the connecting head (32) is provided with a fifth abutting surface, which is located below the convex ring (36). A second spring (37) in a compressed state is clamped between the lower end surface of the convex ring (36) and the fifth abutting surface. The second spring (37) is sleeved on the outer wall of the connecting head (32). The inner wall of the convex ring (36) abuts against the steel ball (33). The outer wall of the connecting head (32) is provided with an annular embedding groove, which is located above the limiting groove and the annular mounting groove. The annular embedding groove is embedded with a clasp (21), and a part of the clasp (21) is located outside the annular embedding groove. The clasp (21) abuts against the upper end surface of the convex ring (36). The distance between the inner wall of the movable sleeve (35) and the outer wall of the area where the side hole of the connecting head (32) is located is smaller than the outer diameter of the steel ball (33). The distance between the inner wall of the movable sleeve (35) and the inner wall of the area where the side hole of the connecting head (32) is located is greater than the outer diameter of the steel ball (33).

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