Freezing double-meter valve capable of preventing mistaken disassembly and quickly disassembling meter head

Abstract

The utility model discloses an anti-mistaken-dismounting fluorine-adding double-meter valve capable of quickly dismounting and mounting meter heads, which comprises a double-meter valve main body, pressure meters, first connectors, second connectors and a movable sleeve, the upper end of the double-meter valve main body is connected with the two first connectors, each first connector corresponds to one pressure meter, and the movable sleeve is connected with the two first connectors. The pressure gauge is provided with a second connector matched with the first connector, the first connector is internally provided with a first communicating hole, the second connector is internally provided with a second communicating hole, a part of the second connector is inserted into the first communicating hole, and the first connector is internally provided with a first abutting surface; according to the utility model, the movable sleeve, the steel ball and the limiting groove are matched with one another, so that the pressure gauge can be conveniently mounted and dismounted, the replacement speed of the pressure gauge is improved, and meanwhile, the situation that the fluorine-adding double-gauge valve is discarded due to the fact that the pressure gauge cannot be dismounted can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of valve, particularly the technical field of double-meter valve. BACKGROUND

[0002] At present, when the fluorine adding double-meter valve of air conditioner appears the inaccurate scale or damage of pressure gauge during use, because some gauge heads cannot be repaired or are not repaired well, especially the connection between the gauge head and the main body of the double-meter valve is fixed by adding glue through threads, so the replacement of the gauge head is troublesome and time-consuming and laborious, the whole double-meter valve is discarded, which is very wasteful, therefore, it is necessary to develop a fluorine adding double-meter valve capable of quickly assembling and disassembling the gauge head. SUMMARY

[0003] The utility model discloses a fluorine adding double-meter valve capable of quickly assembling and disassembling the gauge head and preventing mistaken disassembly, which can quickly assemble and disassemble the pressure gauge and has the function of preventing mistaken disassembly.

[0004] In order to achieve the above object, the utility model provides a prevent mistaken disassembly's fluorine adding double meter valve of quick detachable gauge head, including double meter valve main part, pressure gauge, first connecting head, second connecting head, movable sleeve, the double meter valve main part upper end is connected with two first connecting heads, every first connecting head corresponds a pressure gauge, is equipped with the second connecting head who coordinates with the first connecting head on the pressure gauge, the first connecting head inside is equipped with first through -hole, and the second connecting head inside is equipped with second through -hole, and the second connecting head has a part and inserts into the first through -hole, the first connecting head inside is equipped with a first abutment face, and the first abutment face is the part of first through -hole inner wall, and the second connecting head outside is equipped with a second abutment face, and the first abutment face is pressed against the second abutment face, and the second abutment face is located above the first abutment face, the inner wall of first through -hole is equipped with annular mounting groove, and the first sealing ring is embedded in annular mounting groove, and the first sealing ring is in close contact with the inner wall of annular mounting groove and the outer wall of second connecting head, a plurality of side holes are equipped on the side wall of first through -hole, and every side hole is equipped with a steel ball, a plurality of limit grooves corresponding with side hole one to one are equipped on the outer wall of second connecting head, and the steel ball is partially located in the corresponding side hole and partially located in the limit groove, and the limit groove is adapted to the steel ball, and the end of side hole close to first through -hole inner wall is equipped with the limit wall that presses against the steel ball, the movable sleeve is sleeved on the outside of first connecting head, and the inner wall of movable sleeve is equipped with a convex ring, the outside of first connecting head is equipped with a third abutment face, and the third abutment face is located below the convex ring, and a spring that is always in compression state is clamped between the lower end surface of convex ring and third abutment face, and the spring is sleeved on the outside of first connecting head, and the inner wall of convex ring presses against the steel ball, a ring embedding groove is equipped on the outer wall of first connecting head, and the ring embedding groove is located above limit groove and annular mounting groove, and a clasp ring is embedded in the ring embedding groove, and the clasp ring has a part and is located outside the ring embedding groove, and the clasp ring presses against the upper end surface of convex ring, the interval between the inner wall of movable sleeve and the outer wall of the area where the side hole of first connecting head is located is less than the outer diameter of steel ball, and the interval between the inner wall of movable sleeve and the inner wall of the area where the side hole of first connecting head is located is greater than the outer diameter of steel ball, a limit protrusion is equipped on the outer wall of first connecting head, and the limit protrusion is located below movable sleeve, and a notch groove that allows the limit protrusion to pass through is equipped on the side wall of movable sleeve, and the notch groove is opened at the lower end surface of movable sleeve.

[0005] As preferred, when the notch groove and the limit protrusion are staggered, the movable sleeve moves downwards to the lower end surface being pressed by the limit protrusion, and the inner wall of the convex ring still presses against the steel ball.

[0006] As preferred, when the notch groove is aligned with the limit protrusion, the movable sleeve moves downwards to the top end being pressed by the limit protrusion, and the top end of the convex ring is below the steel ball.

[0007] As preferred, the first connecting head is screwed on the double meter valve main part by the way of threaded connection, and there is a section of regular hexagonal prism on the outside of the first connecting head.

[0008] Preferably, the outer wall of the first connecting head is provided with an embedding groove, and a limiting body is embedded in the embedding groove, and the part of the limiting body exposed outside the embedding groove is a limiting protrusion.

[0009] The pressure gauge can be conveniently installed and disassembled, the replacement speed of the pressure gauge is improved, and the situation that the fluorine adding double gauge valve is discarded due to the fact that the pressure gauge cannot be disassembled is avoided.

[0010] The features and advantages of the present application will be described in detail with reference to the embodiments and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a front view of the fluorine adding double gauge valve with the anti-misdisassembly and quickly disassembled gauge head of the present application;

[0012] Figure 2 is a first connecting head and second connecting head cross-sectional view of the fluorine adding double gauge valve with the anti-misdisassembly and quickly disassembled gauge head of the present application;

[0013] Figure 3 is a first connecting head and second connecting head cross-sectional view of the fluorine adding double gauge valve with the anti-misdisassembly and quickly disassembled gauge head of the present application.

[0014] In the figure: 1-double gauge valve body, 2-pressure gauge, 3-first connecting head, 4-second connecting head, 5-movable sleeve, 6-limiting protrusion, 31-annular mounting groove, 32-first sealing ring, 33-side hole, 34-steel ball, 35-annular embedding groove, 36-clasp, 41-limiting groove, 50-convex ring, 51-spring, 60-limiting body. DETAILED DESCRIPTION

[0015] Embodiment one:

[0016] Referring to Figure 1 , Figure 2 , comprising a double gauge valve body 1, a pressure gauge 2, a first connecting head 3, a second connecting head 4, and a movable sleeve 5, the double gauge valve body 1 is provided with two first connecting heads 3 at the upper end, each first connecting head 3 corresponds to a pressure gauge 2, and the pressure gauge 2 is provided with a second connecting head 4 matched with the first connecting head 3.

[0017] The first connecting head 3 is internally provided with a first communicating hole, the second connecting head 4 is internally provided with a second communicating hole, a part of the second connecting head 4 is inserted into the first communicating hole, the first connecting head 3 is internally provided with a first abutting surface, the first abutting surface is a part of the inner wall of the first communicating hole, the second connecting head 4 is externally provided with a second abutting surface, the first abutting surface abuts against the second abutting surface, and the second abutting surface is located above the first abutting surface.

[0018] An annular mounting groove 31 is arranged on the inner wall of the first communicating hole, a first sealing ring 32 is embedded in the annular mounting groove 31, and the first sealing ring 32 is in close contact with the inner wall of the annular mounting groove 31 and the outer wall of the second connecting head 4.

[0019] A plurality of side holes 33 are arranged on the side wall of the first communicating hole, each side hole 33 is provided with a steel ball 34, the outer wall of the second connecting head 4 is provided with a plurality of limiting grooves 41 corresponding to the side holes 33, the steel ball 34 is partially located in the corresponding side hole 33 and partially located in the limiting groove 41, the limiting groove 41 is adapted to the steel ball 34, and the side hole 33 is provided with a limiting wall close to the inner wall of the first communicating hole, which abuts against the steel ball 34.

[0020] An active sleeve 5 is sleeved on the outer part of the first connecting head 3, a convex ring 50 is arranged on the inner wall of the active sleeve 5, the outer part of the first connecting head 3 is provided with a third abutting surface, the third abutting surface is located below the convex ring 50, a spring 51 in a compressed state at all times is clamped between the lower end surface of the convex ring 50 and the third abutting surface, the spring 51 is sleeved on the outer part of the first connecting head 3, and the inner wall of the convex ring 50 abuts against the steel ball 34.

[0021] An annular embedding groove 35 is arranged on the outer wall of the first connecting head 3, the annular embedding groove 35 is located above the limiting groove 41 and the annular mounting groove 31, a clamping ring 36 is embedded in the annular embedding groove 35, a part of the clamping ring 36 is located outside the annular embedding groove 35, and the clamping ring 36 abuts against the upper end surface of the convex ring 50.

[0022] The distance between the inner wall of the active sleeve 5 and the outer wall of the region where the side hole 33 of the first connecting head 3 is located is smaller than the outer diameter of the steel ball 34, the distance between the inner wall of the active sleeve 5 and the inner wall of the region where the side hole 33 of the first connecting head 3 is located is greater than the outer diameter of the steel ball 34, a limiting protrusion 6 is arranged on the outer wall of the first connecting head 3, the limiting protrusion 6 is located below the active sleeve 5, a notch groove 55 allowing the limiting protrusion 6 to pass through is arranged on the side wall of the active sleeve 5, the notch groove 55 is open at the lower end surface of the active sleeve 5, and the limiting protrusion 6 is in an integral structure with the first connecting head 3.

[0023] When the notch groove 55 and the limiting protrusion 6 are staggered, the active sleeve 5 moves downward to the position where the lower end surface of the active sleeve 5 is abutted by the limiting protrusion 6, and the inner wall of the convex ring 50 still abuts against the steel ball 34.

[0024] When the gap groove 55 is aligned with the limiting protrusion 6, the movable sleeve 5 moves downward to the top end of the gap groove 55 being stopped by the limiting protrusion 6, and the top end of the convex ring 50 is below the steel ball 34.

[0025] In order to facilitate the installation of the first connector 3 on the double-gauge valve body 1, the first connector 3 is screwed on the double-gauge valve body 1 by a threaded connection, and the first connector 3 has a section in the shape of a regular hexagonal prism on the outside.

[0026] Embodiment Two:

[0027] Referring to Figure 3 In order to facilitate the processing of the first connector 3, the difference between the present embodiment and the first embodiment is that the limiting protrusion 6 and the first connector 3 are no longer an integral structure in the present embodiment, and the outer wall of the first connector 3 is provided with an embedded groove, and a limiting body 60 is embedded in the embedded groove, and the part of the limiting body 60 exposed outside the embedded groove is the limiting protrusion 6.

[0028] Working process of the utility model:

[0029] In the working process of the anti-misdisassembly quick-disassembly gauge head fluorine double-gauge valve, the first connector 3 is screwed on the double-gauge valve body 1, the movable sleeve 5 is rotated to the gap groove 55 being aligned with the limiting protrusion 6, then the movable sleeve 5 is pressed downward until the top end of the gap groove 55 is stopped by the limiting protrusion 6, at this time, the convex ring 50 on the inner wall of the movable sleeve 5 moves below the side hole 33, then the second connector 4 on the pressure gauge 2 is inserted into the first connector 3 until the second abutting surface on the second connector 4 is stopped by the first abutting surface inside the first connector 3, and at the same time, the insertion ensures that the limiting groove 41 on the second connector 4 is aligned with the side hole 33 on the first connector 3, then the movable sleeve 5 is loosened, the movable sleeve 5 moves upward under the action of the spring, the movable sleeve 5 pushes the steel ball 34 inward so that the steel ball 34 is embedded in the limiting groove 41, then the movable sleeve 5 is rotated to misalign the gap groove 55 and the limiting protrusion 6, and the second connector 4 and the first connector 3 are connected, at this time, the second connector 4 cannot be pulled out, and the movable sleeve 5 cannot be moved downward substantially, and even if the movable sleeve 5 is mistakenly subjected to a downward pushing force, the second connector 4 cannot be pulled out.

[0030] When it is necessary to separate the pressure gauge 2 from the double-gauge valve body 1, the movable sleeve is rotated to the gap groove 55 being aligned with the limiting protrusion 6, then the movable sleeve 5 is pressed downward until the top end of the gap groove 55 is stopped by the limiting protrusion 6, at this time, the second connector 4 can be easily pulled out.

[0031] The above embodiments are illustrative of the utility model, but not limiting of the utility model, and any simple transformation of the utility model belongs to the protection scope of the utility model.

Claims

1. A fluorinated double meter valve with quick dismountable meter head and anti-misdisassembly, characterized in that: The utility model provides a double-gauge valve body (1), pressure gauge (2), first connecting head (3), second connecting head (4), movable sleeve (5), two first connecting heads (3) are connected to the upper end of double-gauge valve body (1), each first connecting head (3) corresponds a pressure gauge (2), and the second connecting head (4) that is equipped with with first connecting head (3) cooperation is set up in pressure gauge (2), the first communicating hole is equipped in first connecting head (3) inside, and the second communicating hole is equipped in second connecting head (4) inside, and second connecting head (4) has a part and inserts into first communicating hole, first connecting head (3) inside is equipped with a first abutment surface, and the first abutment surface is the part of first communicating hole inner wall, and the second connecting head (4) outside is equipped with a second abutment surface, and the first abutment surface abuts against second abutment surface, and second abutment surface is located above first abutment surface, the inner wall of first communicating hole is equipped with annular mounting groove (31), and first sealing ring (32) is embedded in annular mounting groove (31), and first sealing ring (32) is in close contact with the inner wall of annular mounting groove (31) and the outer wall of second connecting head (4), a plurality of side holes (33) are equipped on the side wall of first communicating hole, and each side hole (33) is provided with a steel ball (34), a plurality of limit grooves (41) corresponding to side hole (33) are equipped on the outer wall of second connecting head (4), and the steel ball (34) is partially located in the corresponding side hole (33) and partially located in the limit groove (41), and the limit groove (41) is adapted to the steel ball (34), and the end of side hole (33) close to the inner wall of first communicating hole is provided with a limit wall abutting against the steel ball (34), the movable sleeve (5) is sleeved on the outside of first connecting head (3), a convex ring (50) is arranged on the inner wall of movable sleeve (5), a third abutment surface is arranged on the outside of first connecting head (3), the third abutment surface is located below the convex ring (50), a spring (51) is clamped between the lower end surface of convex ring (50) and the third abutment surface and is always in a compressed state, the spring (51) is sleeved on the outside of first connecting head (3), the inner wall of convex ring (50) abuts against the steel ball (34), a ring-shaped embedding groove (35) is arranged on the outer wall of first connecting head (3), the ring-shaped embedding groove (35) is located above the limit groove (41) and the annular mounting groove (31), a clamping ring (36) is embedded in the ring-shaped embedding groove (35), a part of the clamping ring (36) is located outside the ring-shaped embedding groove (35), and the clamping ring (36) abuts against the upper end surface of convex ring (50), the distance between the inner wall of movable sleeve (5) and the outer wall of the area where the side hole (33) of first connecting head (3) is located is less than the outer diameter of steel ball (34), the distance between the inner wall of movable sleeve (5) and the inner wall of the area where the side hole (33) of first connecting head (3) is located is greater than the outer diameter of steel ball (34), a limit protrusion (6) is arranged on the outer wall of first connecting head (3), the limit protrusion (6) is located below movable sleeve (5), a notch groove (55) allowing the limit protrusion (6) to pass through is arranged on the side wall of movable sleeve (5), and the notch groove (55) is opened at the lower end surface of movable sleeve (5).

2. The pick-proof, quick-disconnect metered fluorinated valve of claim 1, wherein: When the notch groove (55) is misaligned with the limiting protrusion (6), the movable sleeve (5) moves downward until the inner wall of the convex ring (50) still abuts against the steel ball (34) when the lower end surface of the movable sleeve (5) is abutted by the limiting protrusion (6).

3. The pick-proof, quick-disconnect metered fluorinated valve of claim 1, wherein: When the notch groove (55) is aligned with the limiting protrusion (6), the movable sleeve (5) moves downward until the top end of the convex ring (50) is below the steel ball (34) when the top end of the notch groove (55) is abutted by the limiting protrusion (6).

4. The pick-proof, quick-disconnect metered fluorinated valve of claim 1, wherein: The first connecting head (3) is screwed on the double-meter valve body (1) in a threaded connection mode, and the first connecting head (3) has a section of regular hexagonal prism on the outside.

5. The refrigerant charging dual-gauge valve with a quick-release and detachable gauge head as described in claim 1, characterized in that: The outer wall of the first connecting head (3) is provided with an embedding groove, and a limiting body (60) is embedded in the embedding groove. The outer wall of the first connecting head (3) is provided with an embedding groove, and a limiting body (60) is embedded in the embedding groove.

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