CN209084147U - Working service valve - Google Patents

Abstract

The utility model relates to a kind of working service valves, including refrigerant area valve body, mechanical region valve body, flexible sheet, service ports connector, first mandril and the second mandril, the outside of refrigerant area valve body is equipped with refrigerant interface tube, the flexible sheet is set between refrigerant area valve body and the mechanical region valve body, the service ports connector is set to the one end of refrigerant area valve body far from the flexible sheet, first mandril runs through the both ends of refrigerant area valve body, the first end of first mandril stretches in the service ports connector, second mandril runs through the mechanical region valve body, second mandril is flexibly connected with the mechanical region valve body, the first end of second mandril is abutted by the flexible sheet with the second end of first mandril.The sealing effect of the working service valve is good, and safety coefficient is high.

Description

Working service valve

Technical field

The utility model relates to valve technology fields, more particularly to a kind of working service valve.

Background technique

In domestic air conditioning installation specification, each producer requires that pressure maintaining must be vacuumized when installation, and maintenance mans (take out true in installation It is empty) or when maintenance (filling refrigerant), disassembly hose coupling is easy to produce coolant leakage and frostbite hand.In order to avoid above-mentioned hidden Suffer from, is generally set between refrigerant pipe and air-conditioning maintenance mouth using working service valve.General working service valve uses mandril Mechanism opens the valve inside in service ports with mandril after nut and air-conditioning maintenance mouth are tightened, and can vacuumize add fluorine at this time； After completing work, backs out mandril and unclamp valve inside, unload safety valve at this time, above-mentioned security risk can be improved.But it is traditional Working service valve seals mandril and valve body using O-ring seal and is easy to appear O-ring seal aging, pine due to being commonly used Dynamic situation, leads to poor sealing effect, has biggish sealing risk, may cause the status that refrigerant vacuumizes plus fluorine fails, It is lower that coefficient is installed.

Utility model content

Based on this, it is necessary to provide a kind of working service valve, the sealing effect of the working service valve is good, and safety coefficient is high.

Its technical solution is as follows:

A kind of working service valve, including refrigerant area valve body, mechanical region valve body, flexible sheet, service ports connector, the first mandril And second mandril, the outside of refrigerant area valve body are equipped with refrigerant interface tube, the flexible sheet is set to refrigerant area valve Between body and the mechanical region valve body, the service ports connector is set to one of refrigerant area valve body far from the flexible sheet End, first mandril run through the both ends of refrigerant area valve body, and the first end of first mandril stretches to the service ports In connector, second mandril runs through the mechanical region valve body, and second mandril is flexibly connected with the mechanical region valve body, institute The first end for stating the second mandril is abutted by the flexible sheet with the second end of first mandril.

Above-mentioned working service valve when the working service valve is in and does not open state by service ports connector in use, be screwed in On air control valve, refrigerant pipe is accessed on refrigerant interface tube, at this point, the first mandril and the second mandril will not open the gas of air control valve Men Xin, the refrigerant in system will not leak frostbite hand；When refrigerant is added, the second mandril is operated, the second mandril passes through elasticity Diaphragm pushes the valve inside for the air control valve that the first mandril opens the first mandril in service ports connector, can vacuumize add at this time Refrigerant；After completing work, the second mandril is operated, so that the first mandril unclamps the valve inside of air control valve, unloads the working service valve ?.Flexible sheet is arranged in refrigerant by the way that valve body is divided into refrigerant area valve body and mechanical region valve body for the working service valve Between area's valve body and mechanical region valve body, to will manually be split with system refrigerant area in mechanical structure area, the second mandril is logical It crosses flexible sheet and pushes or unclamp the first mandril, it, will not compared to the structure of conventionally employed O-ring seal sealing mandril and valve body There is aging, loose phenomenon, sealing effect is good, can effectively prevent secondary refrigerant leakage, and safety coefficient is high, can prevent refrigerant and let out The security risk of leakage and frostbite hand.

The flexible sheet includes diaphragm box body, connection diaphragm and fitting, the film in one of the embodiments, The two sides of piece box body are respectively equipped with the first mounting hole and the second mounting hole, the diaphragm box body at its first mounting hole with it is described The connection of refrigerant area valve seal, the diaphragm box body is connect at its second mounting hole with the mechanical region valve seal, described Fitting is set to the inside of the diaphragm box body, and the fitting is connect by the connection diaphragm with the diaphragm box body, institute The first end for stating the second mandril is abutted with the side of the fitting, and the second end of first mandril is another with the fitting Side abuts.

The diaphragm box body welds at its first mounting hole with refrigerant area valve body in one of the embodiments, The diaphragm box body welds at its second mounting hole with the mechanical region valve body.

The fitting is the abutting plate with thickness in one of the embodiments, and the two sides of the fitting are distinguished Equipped with abutted with the second end of first mandril matched first slot and with the first end matched second of second mandril Slot is abutted, the second end of first mandril is connected to described first and abuts in slot, and the first end of second mandril is connected to Described second abuts in slot.

The fitting includes that first be connected to each other abuts plate and the second abutting plate in one of the embodiments, described Connection diaphragm is located in the first abutting plate and abuts between plate with described second, and institute is stretched out in the edge of the connection diaphragm It states fitting and is connect with the diaphragm box body.

In one of the embodiments, the diaphragm box body include the first box body and the second box body, first box body with The second box body sealing docking, first box body are equipped with first mounting hole, and second box body is equipped with described Second mounting hole.

First box body and the arc-shaped structure of second box body in one of the embodiments, first box The inner concave of body and the inner concave of second box body are oppositely arranged.

The working service valve further includes reset spring in one of the embodiments, and refrigerant area valve body is close to institute It states and offers spring mounting hole on one end end face of flexible sheet, the reset spring is set in the spring mounting hole, and institute The outside that reset spring is set in first mandril is stated, the outside of first mandril is equipped with for limiting the reset spring Defining flange.

The working service valve further includes operation knob in one of the embodiments, and the operation knob is arranged in institute State the one end of the second mandril far from the flexible sheet.

The working service valve further includes with the jointing through inner cavity, the company in one of the embodiments, One end of connector is connect with refrigerant area valve body far from one end of the flexible sheet, the other end of the jointing with The connection of service ports connector, second mandril passes through the inner cavity of refrigerant area valve body, the inner cavity of jointing stretches to the maintenance In mouth connector.

Detailed description of the invention

Fig. 1 is the surface structure schematic diagram of working service valve described in an embodiment of the present invention；

Fig. 2 is the working service valve in Fig. 1 in sectional view when not opening state；

Fig. 3 is the working service valve in Fig. 1 in sectional view when opening state；

Fig. 4 is the enlarged structure schematic diagram in Fig. 2 at A.

Description of symbols:

100, refrigerant area valve body, 110, refrigerant interface tube, the 120, first mounting groove, 130, spring mounting hole, 200, machinery Area's valve body, the 210, second mounting groove, 300, flexible sheet, 310, diaphragm box body, the 312, first box body, the 3122, first mounting hole, 314, the second box body, the 3142, second mounting hole, 320, connection diaphragm, 330, fitting, the 331, first abutting plate, 332, first Slot is abutted, 333, second abuts plate, and 334, second abuts slot, 400, service ports connector, the 500, first mandril, 510, limit convex Edge, the 600, second mandril, 700, reset spring, 800, operation knob, 900, jointing.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this The disclosure of type understands more thorough and comprehensive.

It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper", There is no intermediary elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are For illustrative purposes, it is not meant to be the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet Include any and all combinations of one or more related listed items.Term as used herein " first ", " second " It is used to distinguish object Deng herein, but these objects should not be limited by these terms.

As shown in Figure 1, Figure 2, Figure 3 shows, an embodiment provides a kind of working service valve, including refrigerant area valve body 100, mechanical region Valve body 200, flexible sheet 300, service ports connector 400, the first mandril 500 and the second mandril 600.Refrigerant area valve body 100 outside is equipped with refrigerant interface tube 110.The flexible sheet 300 is set to refrigerant area valve body 100 and the mechanical region valve Between body 200.The service ports connector 400 is set to the one end of refrigerant area valve body 100 far from the flexible sheet 300.Institute State the both ends that the first mandril 500 runs through refrigerant area valve body 100.The first end of first mandril 500 stretches to the dimension It repairs in mouthful connector 400.Second mandril 600 runs through the mechanical region valve body 200.Second mandril 600 and the machinery Area's valve body 200 is flexibly connected.The first end of second mandril 600 passes through the flexible sheet 300 and first mandril 500 Second end abut.

Above-mentioned working service valve is in use, when the working service valve is in and does not open state by service ports connector 400 It is screwed on air control valve, accesses refrigerant pipe on refrigerant interface tube 110, at this point, the first mandril 500 and the second mandril 600 will not The valve inside of air control valve is opened, the refrigerant in system will not leak frostbite hand；When refrigerant is added, the second mandril 600 is operated, Second mandril 600 pushes the first mandril 500 by flexible sheet 300 and first mandril 500 is opened in service ports connector 400 The valve inside of air control valve can vacuumize add refrigerant at this time；After completing work, the second mandril 600 is operated, so that the first mandril 500 unclamp the valve inside of air control valve, unload the working service valve.The working service valve, by the way that valve body is divided into refrigerant Flexible sheet 300 is arranged between refrigerant area valve body 100 and mechanical region valve body 200 for area's valve body 100 and mechanical region valve body 200, To will manually be split with system refrigerant area in mechanical structure area, the second mandril 600 is pushed by flexible sheet 300 or pine The first mandril 500 is opened, compared to the structure of conventionally employed O-ring seal sealing mandril and valve body, is not in aging, loosens now As sealing effect is good, not will cause vacuum, adds the phenomenon that fluorine failure, can effectively prevent secondary refrigerant leakage, eliminates sealing safety wind Danger, safety coefficient is high, can prevent the security risk of coolant leakage and frostbite hand.In addition, flexible sheet 300 is compared to biography System O-ring seal, long service life, replacement cycle are long.

Specifically, second mandril 600 can be used screw thread rotation with the mechanical region valve body 200 flexible connection and connect, The second mandril 600 is turned by rotation, so that the second mandril 600 pushes or unclamp the first mandril 500 by flexible sheet 300. It can be used alternatively, second mandril 600 is flexibly connected with the mechanical region valve body 200 by key connection, by pressing the second top Bar 600, so that the second mandril 600 pushes or unclamp the first mandril 500 by flexible sheet 300.In other embodiments, may be used It is without being limited thereto using other movable connection methods.

Further, as shown in Figure 2, Figure 4 shows, the flexible sheet 300 include diaphragm box body 310, connection diaphragm 320 and Fitting 330.The two sides of the diaphragm box body 310 are respectively equipped with the first mounting hole 3122 and the second mounting hole 3142.The film Piece box body 310 is tightly connected at its first mounting hole 3122 with refrigerant area valve body 100.The diaphragm box body 310 is at it It is tightly connected at second mounting hole 3142 with the mechanical region valve body 200.The fitting 330 is set to the diaphragm box body 310 Inside.The fitting 330 is connect by the connection diaphragm 320 with the diaphragm box body 310.Second mandril 600 First end abutted with the side of the fitting 330, the second end of first mandril 500 is another with the fitting 330 Side abuts.Optionally, the fitting 330 is brass sheet material.

So set, diaphragm box body 310, connection diaphragm 320 and fitting 330 can form diaphragm box structure integral installation Between refrigerant area valve body 100 and mechanical region valve body 200, good integrity is easy for installation；It is cavity in diaphragm box body 310, it can Mobile space is reserved for connection diaphragm 320 and fitting 330, convenient for the second mandril 600 pushing to the first mandril 500, together When, fitting 330 also can be used as force piece, is conducive to the second mandril 600 for thrust and passes to the first mandril 500.In addition, diaphragm The two sides of box structure pass through the first mounting hole 3122, the second mounting hole 3142 and refrigerant area valve body 100, mechanical region valve body respectively 200 connections can not only realize installation connection, but also pass through the second mounting hole 3142 convenient for the second mandril 600 and be connected to fitting 330 On, the first mandril 500 passes through the first mounting hole 3122 and is connected on fitting 330, realizes that the first end of the second mandril 600 passes through Fitting 330 is abutted with the second end of the first mandril 500.

Further, the diaphragm box body 310 welds at its first mounting hole 3122 with refrigerant area valve body 100. The diaphragm box body 310 welds at its second mounting hole 3142 with the mechanical region valve body 200.So set, diaphragm box body 310 by the first mounting hole 3122 with refrigerant area valve body 100 weld, at the second mounting hole 3142 with mechanical region valve body 200 welding are, it can be achieved that diaphragm box body 310 is arranged between refrigerant area valve body 100 and mechanical region valve body 200, and uses welding Connection type, connection is reliable, good seal performance.

Optionally, the first mounting groove 120, first mounting hole are offered on the outer wall of refrigerant area valve body 100 3122 match with first mounting groove 120, the cell wall of the hole wall of first mounting hole 3122 and first mounting groove 120 Welding.Offer the second mounting groove 210 on the outer wall of the mechanical region valve body 200, second mounting hole 3142 and described the The cell wall of the matching of two mounting grooves 210, the hole wall of second mounting hole 3142 and second mounting groove 210 welds.In this way, can Diaphragm box body 310 is welded at the first mounting hole 3122 at first mounting groove 120 of refrigerant area valve body 100, by diaphragm case Body 310 is welded at the second mounting groove 210 of mechanical region valve body 200 at the second mounting hole 3142, the first mounting groove 120 and Two mounting grooves 210 can play the role of positioning, convenient for welding, and flexible sheet 300 is easy for installation.

Further, the fitting 330 is the abutting plate with thickness.The two sides of the fitting 330 are respectively equipped with Slot 332 is abutted with the second end of first mandril 500 matched first and is matched with the first end of second mandril 600 Second abut slot 334.The second end of first mandril 500 is connected to described first and abuts in slot 332.Second mandril 600 first end is connected to described second and abuts in slot 334.So set, the second end of the first mandril 500 can be supported by first Access slot 332 is fixed, and it is fixed that the first end of the second mandril 600 can abut slot 334 by second, and the second mandril 600 is pushing or pine It when opening the first mandril 500, is not easy to shake, the transmitting of power is more stable, reliable.

In one embodiment, the fitting 330 includes that first be connected to each other abuts plate 331 and the second abutting plate 333.It is described Connection diaphragm 320 is located in the first abutting plate 331 and abuts between plate 333 with described second.The four of the connection diaphragm 320 Circumferential edges stretch out the fitting 330.The edge of the connection diaphragm 320 and the edge of the diaphragm box body 310 Connection.In this way, the cavity that diaphragm box body 312,314 is formed can be divided into two disconnected chambers up and down by connection diaphragm 320, guarantee Sealing, prevents secondary refrigerant leakage frostbite hand.In addition, the first abutting plate 331 and the second abutting plate 333 are connected, and junctional membrane Piece 320 is located in the first abutting plate 331 and abuts between plate 333 with second, and fitting 330 is installed firm in diaphragm box body 310 Reliably, it is not easy to shake, the second mandril 600 is good by the stability that fitting 330 controls the movement of the first mandril 500.Specifically, One, which abuts the side that plate 331 abuts plate 333 far from described second, is equipped with the first abutting slot 332.Second abutting plate 333 is separate Described first side for abutting plate 331 is equipped with described second and abuts slot 334.

In one embodiment, the diaphragm box body 310 includes the first box body 312 and the second box body 314, first box body 312 dock with second box body 314 sealing.First box body 312 is equipped with first mounting hole 3122.Described second Box body 314 is equipped with second mounting hole 3142.So set, first the first box body 312 can be sealedly connected on cold when installation On matchmaker area valve body 100, the second box body 314 is sealedly connected on mechanical region valve body 200, then by the corresponding end of the first box body 312, The corresponding end of second box body 314 and the corresponding end for connecting diaphragm 320 are tightly connected, easily manufactured, easy for installation.

Optionally, first box body 312 and the arc-shaped structure of second box body 314.First box body 312 The inner concave of inner concave and second box body 314 is oppositely arranged.So set, the arc of the first box body 312 and the second box body 314 Shape structure is conducive to the flexible deformation of flexible sheet 300, consequently facilitating the second mandril 600 is pushed by flexible sheet 300 or pine Open the first mandril 500.In other embodiments, first box body 312 and the second box body 314 can also be the knot such as rectangular, trapezoidal Structure, it is without being limited thereto.

Further, the working service valve further includes reset spring 700.Refrigerant area valve body 100 is close to the bullet Spring mounting hole 130 is offered on one end end face of property diaphragm 300.The reset spring 700 is set to the spring mounting hole 130 In, and the reset spring 700 is set in the outside of first mandril 500.The outside of first mandril 500 is equipped with and is used for Limit the defining flange 510 of the reset spring 700.So set, reset spring 700 can play reset after completing work The effect of first mandril 500 further promotes security performance so that the first mandril 500 unclamps the valve inside of air control valve.

In one embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, the working service valve further includes operation knob 800.The operation The one end of second mandril 600 far from the flexible sheet 300 is arranged in knob 800.In this way, operator can be revolved by operation Button 800 rotates the second mandril 600, so that the second mandril 600 rotates to push or unclamp first relative to mechanical region valve body 200 Mandril 500, it is more convenient to operate.

In one embodiment, the working service valve further includes with the jointing 900 through inner cavity.The jointing 900 one end is connect with refrigerant area valve body 100 far from one end of the flexible sheet 300.The jointing 900 it is another One end is connect with service ports connector 400.Second mandril 600 passes through the inner cavity of refrigerant area valve body 100, jointing 900 Inner cavity stretches in the service ports connector 400.In this way, valve body 100 one end far from flexible sheet 300 in refrigerant area passes through connection Connector 900 is connect with service ports connector 400.

The working service valve of the present embodiment, is applicable in air conditioner installation and service, uses as air-conditioning liquid feeding safety valve, Sealing security risk can be eliminated, has service life long, the replacement cycle is long, the high feature of safety coefficient.In addition, being equally applicable to Other are used in the occasion of thimble structure safety valve, without being limited thereto.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of working service valve, which is characterized in that connect including refrigerant area valve body, mechanical region valve body, flexible sheet, service ports Head, the first mandril and the second mandril, the outside of refrigerant area valve body are equipped with refrigerant interface tube, and the flexible sheet is set to institute It states between refrigerant area valve body and the mechanical region valve body, the service ports connector is set to refrigerant area valve body far from the elasticity One end of diaphragm, first mandril run through the both ends of refrigerant area valve body, and the first end of first mandril stretches to institute It states in service ports connector, second mandril runs through the mechanical region valve body, and second mandril and the mechanical region valve body are living Dynamic connection, the first end of second mandril are abutted by the flexible sheet with the second end of first mandril.

2. working service valve according to claim 1, which is characterized in that the flexible sheet includes diaphragm box body, connection Diaphragm and fitting, the two sides of the diaphragm box body are respectively equipped with the first mounting hole and the second mounting hole, the diaphragm box body Connect at its first mounting hole with refrigerant area valve seal, the diaphragm box body at its second mounting hole with the machine The connection of tool area valve seal, the fitting are set to the inside of the diaphragm box body, and the fitting passes through the connection diaphragm It is connect with the diaphragm box body, the first end of second mandril is abutted with the side of the fitting, first mandril Second end is abutted with the other side of the fitting.

3. working service valve according to claim 2, which is characterized in that the diaphragm box body at its first mounting hole with The welding of refrigerant area valve body, the diaphragm box body weld at its second mounting hole with the mechanical region valve body.

4. working service valve according to claim 2, which is characterized in that the fitting is the abutting plate with thickness, The two sides of the fitting, which are respectively equipped with, to abut slot with the second end of first mandril matched first and pushes up with described second The first end of bar matched second abuts slot, and the second end of first mandril is connected to described first and abuts in slot, and described the The first end of two mandrils is connected to described second and abuts in slot.

5. working service valve according to claim 4, which is characterized in that the fitting includes that first be connected to each other abuts Plate and second abuts plate, and the connection diaphragm is located in the first abutting plate and abuts between plate with described second, the connection The edge of diaphragm is stretched out the fitting and is connect with the diaphragm box body.

6. working service valve according to claim 5, which is characterized in that the diaphragm box body includes the first box body and second Box body, first box body are docked with second box body sealing, and first box body is equipped with first mounting hole, described Second box body is equipped with second mounting hole.

7. working service valve according to claim 6, which is characterized in that first box body and second box body are in Arcuate structure, the inner concave of first box body and the inner concave of second box body are oppositely arranged.

8. working service valve according to claim 1, which is characterized in that it further include reset spring, refrigerant area valve body Spring mounting hole is offered on one end end face of the flexible sheet, the reset spring is set to the spring mounting hole In, and the reset spring is set in the outside of first mandril, the outside of first mandril is equipped with described for limiting The defining flange of reset spring.

9. described in any item working service valves according to claim 1~8, which is characterized in that it further include operation knob, the behaviour As knob, the described one end of second mandril far from the flexible sheet is set.

10. described in any item working service valves according to claim 1~8, which is characterized in that further include having through inner cavity Jointing, one end of the jointing are connect with refrigerant area valve body far from one end of the flexible sheet, the company The other end of connector is connect with service ports connector, second mandril pass through the inner cavity of refrigerant area valve body, jointing it is interior Chamber stretches in the service ports connector.