CN202442557U

CN202442557U - Pouring gun head

Info

Publication number: CN202442557U
Application number: CN201220055423XU
Authority: CN
Inventors: 黄英文; 钟明生
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2012-02-20
Filing date: 2012-02-20
Publication date: 2012-09-19
Anticipated expiration: 2022-02-20

Abstract

A pouring gun head comprises a pouring seat and a connecting seat connected with the pouring seat. A male joint installing space is arranged on the connecting seat, male joint communicating channels are arranged on the pouring seat and the connecting seat, the connecting seat comprises a sleeve and a connecting cylinder sleeved outside the sleeve, and a clamping sleeve installing space is formed between the sleeve and the connecting cylinder. A clamping sleeve capable of carrying out reciprocating sliding along the axial direction is arranged in the clamping sleeve installing space. An air vent is arranged at a first end of the clamping sleeve installing space, and a first elastic component for enabling the clamping sleeve to return towards the first end of the clamping sleeve installing space is arranged at a second end of the clamping sleeve installing space. A locking part channel horizontally penetrating through a sleeve wall and a locking part which is movably arranged in the locking part channel and used for locking a male joint inserted into the sleeve are arranged in the sleeve. The clamping sleeve comprises a first inner diameter part and a second inner diameter part which are selectively correspondingly matched with the locking part so as to enable the locking part to lock or unlock the male joint. Self-locking of the male joint can be achieved by leading in compressed air, the automation degree is high, and labor is saved.

Description

The Filling gun head

Technical field

The utility model relates to fluid perfusion device field, in particular to a kind of Filling gun head.

Background technology

The air-tightness of device detects, and especially the detection of the air-tightness of air conditioner is one important procedure after assembling is accomplished in the production process of air conditioner.The method that the air-tightness of outdoor machine of air-conditioner detects is that working medium such as cooling medium charging are advanced outdoor machine of air-conditioner, is increased to certain air pressure then, and whether the inspection air conditioner leaks gas.

At present, the outdoor machine of air-conditioner cooling medium charging mainly adopts artificial docking mode, adopts this mode, and automaticity is lower, labor strength is bigger.

The utility model content

The utility model aims to provide a kind of Filling gun head that can realize automatic butt, to solve the technical problem that device for casting automaticity of the prior art is lower, labor strength is bigger.

To achieve these goals; The Filling gun head of the utility model comprises perfusion seat and the Connection Block that links to each other with the perfusion seat, and Connection Block is provided with the male joint installing space; Perfusion seat and Connection Block are provided with one or more male joint communication passage; Wherein, Connection Block comprises the connecting cylinder that sleeve is outer with being set in sleeve, forms the cutting ferrule installing space between sleeve and the connecting cylinder; Be provided with cutting ferrule sliding back and forth vertically in the cutting ferrule installing space; First end of cutting ferrule installing space is provided with passage, and second end of cutting ferrule installing space is provided with first elastomeric element that is used to make cutting ferrule to reset to first end of cutting ferrule installing space; Sleeve is provided with the locking piece passage of lateral direction penetrating sleeve wall and is arranged on movably and is used to lock the locking piece that is inserted into the male joint in the sleeve in the locking piece passage; Cutting ferrule comprises optionally with the locking piece corresponding matching so that first inside diameter and second inside diameter of locking piece locking or release male joint.

Further, the medial extremity of locking piece passage is provided with and limits the limiting section that locking piece moves inward the position.

Further, the limiting section of the medial extremity of locking piece passage is annular internal projection.

Further; The compartment of terrain is provided with refrigerant import, vacuum orifice and spool and opens mouth on the end wall of first end of perfusion seat; The compartment of terrain is provided with and vacuumizes fluid valve and perfusion of fluid valve on the sidewall of first end of perfusion seat; Vacuum orifice with vacuumize fluid valve and be communicated with, the refrigerant import is communicated with the perfusion of fluid valve; The junction of second end of perfusion seat and first end of sleeve has formed the plunger tip installing space jointly; The plunger tip installing space is communicated with the male joint installing space; Spool opens mouthful, vacuumize fluid valve, perfusion of fluid valve is communicated with the plunger tip installing space respectively; Plunger tip is installed in the plunger tip installing space movably, and second end of plunger tip installing space is provided with second elastomeric element that is used to make plunger tip to reset to first end of plunger tip installing space, and the plunger tip set inside has the perfusion channel that runs through; Perfusion channel is split into many by-paths at the end towards Connection Block; Form abutting part between many by-paths, perfusion channel has the state that is communicated with vacuum orifice vacuumizing when fluid valve is opened, when the perfusion of fluid valve is opened, have the state that is communicated with the refrigerant import.

Further, the perfusion of fluid valve comprises thick filling fluid valve and the smart fluid valve of irritating, and the refrigerant import is communicated with thick filling fluid valve and the smart fluid valve of irritating respectively, and the plunger tip installing space is communicated with thick filling fluid valve and the smart fluid valve of irritating respectively.

Further, the sidewall of plunger tip is provided with first through hole perpendicular to perfusion channel, and perfusion channel is communicated with vacuum orifice through first through hole when opening vacuumizing fluid valve.

Further, first through hole is arranged at first end of the sidewall of plunger tip.

Further, the quantity of by-path is three.

Further, first elastomeric element and/or second elastomeric element are spring.

Further; Connecting cylinder comprises: be arranged at connecting cylinder away from the end seat of an end of perfusion seat and the middle base that is connected with second end of perfusion seat; The inwall of middle base is connected with the outer wall of sleeve, and the middle part of end seat is provided with the public access through hole, and second end of sleeve is connected with the end seat; And the inwall of sleeve constitutes the male joint installing space with the public access through hole; Passage is the through hole that is arranged on the sidewall of middle base, leans on an end of proximal seat to be provided with cutting ferrule on the inwall of middle base annular groove is installed, and cutting ferrule is installed between annular groove and sleeve and the end and surrounded the cutting ferrule installing space jointly.

Further, between plunger tip and the perfusion seat, between plunger tip and the sleeve, between sleeve and the middle base, between cutting ferrule and the sleeve, be respectively arranged with seal between cutting ferrule and the middle base.

Further, seal is a sealing shroud.

Further, locking piece is a steel ball.

The Filling gun head of the utility model, when feeding compressed air from passage, cutting ferrule just can be to the direction motion away from the perfusion seat, and compresses first elastomeric element; This moment, cutting ferrule stopped to push locking piece, and locking piece at this moment, inserts male joint along being in active state on the axial direction of locking piece passage; Stop to feed compressed air, first elastomeric element is tending towards resetting, and then promotes cutting ferrule to the direction motion near the perfusion seat; To return to normal condition, continue the extruding locking piece, at this moment; Locking piece pins male joint, and male joint can't separate with the Filling gun head, has promptly accomplished the self-locking of male joint and Filling gun head.In addition; The utility model also charges into compressed air and promotes plunger tip and promote the internal motion of the joint spool of male joint to male joint to the direction motion of Connection Block through open mouth from spool in the process of carrying out cooling medium charging, and then compression is positioned at the spring at joint valve core rear, and it is inner to get into male joint; With the inner passage of realization Filling gun head and being communicated with of male joint inner passage; And then vacuumize and filling process, after accomplishing, perfusion discharges compressed air, and filling process finishes.The Filling gun head automaticity of using the utility model is high, saves manpower.

Description of drawings

The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:

Fig. 1 show the utility model the Filling gun head first analyse and observe the sectional structure sketch map of position, the connectivity structure of refrigerant import and plunger tip has been shown among the figure;

Fig. 2 show the utility model the Filling gun head second analyse and observe the sectional structure sketch map of position, spool has been shown among the figure has opened mouthful the connectivity structure with the plunger tip installing space;

Fig. 3 show the utility model the Filling gun head the 3rd analyse and observe the sectional structure sketch map of position, the connectivity structure of vacuum orifice and plunger tip has been shown among the figure;

Fig. 4 shows the perspective view of seeing from a direction of the Filling gun head of the utility model, the not shown smart fluid valve of irritating; And

Fig. 5 shows the perspective view of seeing from other direction of Filling gun head, not shown thick filling fluid valve.

The specific embodiment

Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.

As shown in Figure 1; The Filling gun head of the utility model comprises perfusion seat 1 and the Connection Block 2 that links to each other with perfusion seat 1; Wherein, Like Fig. 4 and shown in Figure 5, being provided with refrigerant import 11, vacuum orifice 13 and spool away from compartment of terrain on the end wall of Connection Block 2 and opening mouthfuls 12 of perfusion seat 1, the compartment of terrain is provided with the perfusion of fluid valve and vacuumizes fluid valve 131 on the sidewall; Wherein in order not only to pour into refrigerant fast but also accurately; The perfusion of fluid valve of the utility model preferably include in order to the thick filling fluid valve 111 of controlling quick perfusion and in order to control more slowly and accurately the essence of perfusion irritate fluid valve 112, vacuum orifice 13 with vacuumize fluid valve 131 and be communicated with, refrigerant import 11 is communicated with thick filling fluid valve 111 and essence filling fluid valve 112 respectively.

Connection Block 2 comprises sleeve 22 and the connecting cylinder that is set in outside the sleeve 22; Perfusion seat 1 has formed the plunger tip installing space jointly with the end near perfusion seat 1 of sleeve 22; Spool opens mouthfuls 12, vacuumize fluid valve 131, slightly irritate fluid valve 111 and the smart fluid valve 112 of irritating is communicated with the plunger tip installing space respectively; Plunger tip 3 can be along being installed on movably in the plunger tip installing space near perfusion seat 1 or away from the direction of pouring into seat 1; Be provided with second elastomeric element 34 (like spring) that plunger tip 3 is resetted to the direction near perfusion seat 1 between plunger tip 3 and the sleeve 22, plunger tip 3 set inside have the perfusion channel 31 that runs through along on perfusion seat 1 to Connection Block 2 directions, and perfusion channel 31 is split into three by-paths at the end towards Connection Block 2; Article three, the part between the by-path forms abutting part 32; The sidewall near an end of perfusion seat 1 of perfusion channel 31 is provided with first through hole 33 perpendicular to perfusion channel 31, and when vacuumizing fluid valve 131 when opening, the perfusion channel 31 of plunger tip 3 has the state that is communicated with vacuum orifice 13; Irritate fluid valve 112 when opening when thick filling fluid valve 111 or smart, the perfusion channel 31 of plunger tip 3 has the state that is communicated with refrigerant import 11.

The middle part of Connection Block 2 is provided with the male joint installing space, and the male joint installing space is connected with the plunger tip installing space, in order to vacuumize and cooling medium charging, forms the cutting ferrule installing space between sleeve 22 and the connecting cylinder; Be provided with cutting ferrule 24 sliding back and forth vertically in the cutting ferrule installing space; End near perfusion seat 1 of cutting ferrule installing space is provided with passage 211, and the end away from perfusion seat 1 of cutting ferrule installing space is provided with and is used to make cutting ferrule 24 to first elastomeric element 25 (like spring) that resets near an end that pours into seat 1; Sleeve 22 is provided with the locking piece passage of lateral direction penetrating sleeve wall and is arranged on movably and is used to lock the locking piece (like steel ball 221) that is inserted into the male joint in the sleeve in the locking piece passage; Cutting ferrule 24 comprises optionally with the locking piece corresponding matching so that first inside diameter and second inside diameter of locking piece locking or release male joint 4.

The Filling gun head of the utility model, after passage 211 fed compressed air, cutting ferrule 24 just can be to the direction motion away from passage 211; And compress first elastomeric element 25, and this moment, cutting ferrule 24 stopped to push locking piece, and locking piece is along being in active state on the axial direction of locking piece passage; At this moment, insert male joint 4, stop to feed compressed air; First elastomeric element 25 is tending towards resetting, and then promotes cutting ferrule 24 to moving to return to normal condition near the direction of passage 211 1 ends, continues the extruding locking piece; At this moment, locking piece pins male joint 4, and male joint 4 can't separate with the Filling gun head; Promptly accomplished the self-locking of male joint 4, and then carried out cooling medium charging further with the Filling gun head.The Filling gun head automaticity of using the utility model is high, saves manpower.

In order to make the device of the utility model more convenient in installation process; Connecting cylinder in the Filling gun head of the utility model preferably includes: be positioned at the end seat 23 away from perfusion seat 1 one ends; With the middle base 21 that an end of perfusion seat 1 links to each other, the inwall of middle base 21 links to each other with the outer wall of sleeve 22.One end of sleeve 22 links to each other with end seat 23, and end 23 is provided with the public access through hole, and the inwall of sleeve 22 constitutes the male joint installing space suitable with male joint 4 with the public access through hole, and the male joint installing space is communicated with the plunger tip installing space; The sidewall of middle base 21 is provided with passage 211; Passage 211 is a through hole; Lean on an end of proximal seat 23 to be provided with cutting ferrule installation annular groove on the inwall of middle base 21, cutting ferrule is installed between annular groove and sleeve 22 and the end seat 23 and is surrounded the cutting ferrule installing space jointly, and the cutting ferrule installing space is communicated with passage 211; Lean on the lateral surface of an end of proximal seat 23 to be provided with annular groove on the sleeve 22, annular groove is on the medial surface of an end that leans on proximal seat 23 of cutting ferrule installing space; Cutting ferrule 24 can be along being placed on movably in the cutting ferrule installing space near perfusion seat 1 or away from the direction of pouring into seat 1; Cutting ferrule 24 inboard ends that lean on proximal seat 23 are provided with annular boss; Annular boss is positioned at annular groove inside; And the length of annular boss is less than annular groove, and the end away from perfusion seat 1 of cutting ferrule installing space is provided with and is used to make cutting ferrule 24 to first elastomeric element 25 (like spring) that resets near an end that pours into seat 1.

The utility model at first, through feeding compressed-air actuated mode from passage 211, is realized the self-locking of male joint 4 and Filling gun head in use;

Then, as shown in Figure 2, open mouthful 12 feeding compressed air at spool; Because spool is opened mouthfuls 12 and communicated with the plunger tip installing space, compressed air promotes plunger tip 3 to the direction motion near sleeve 22, and the joint spool of the abutting part 32 promotion male joints 4 of plunger tip 3 is to the internal motion of male joint 4; And then compression is positioned at the spring at joint valve core rear; Get into male joint 4 inside, at this moment, three by-paths on the plunger tip 3 are communicated with male joint 4; And then realized being communicated with of perfusion joint and male joint 4 that perfusion channel 31 is communicated with through first through hole 33 with vacuumizing between the fluid valve 131 at this moment;

Once more, as shown in Figure 3, open and vacuumize fluid valve 131; With being communicated with of the perfusion channel 31 of realizing vacuum orifice 13 and plunger tip 3; And then realized being communicated with of vacuum orifice 13 and male joint 4, so that outdoor machine of air-conditioner is vacuumized, detect the vacuum of outdoor machine of air-conditioner; If vacuum is qualified, closes and vacuumize fluid valve 131.Connect the thick fluid valve 111 of irritating, outdoor machine of air-conditioner is poured into fast, when groundwater increment satisfies the amount that sets, close thick filling fluid valve 111, open the smart fluid valve 112 of irritating, carry out flood irrigation and annotate, qualified until groundwater increment, the smart fluid valve 112 of irritating is closed;

At last, spool is opened mouthful 12 exhausts, and male joint 4 inner springs promote the joint spool and outwards move; And then promote plunger tip 3 to direction motion away from sleeve 22, to return to the state that feeds before the compressed air, at this moment; Be not communicated with between plunger tip 3 and the male joint 4, perfusion is accomplished.

In order to increase the air-tightness of the utility model device, in the utility model between plunger tip 3 and the perfusion seat 1, between plunger tip 3 and the sleeve 22; Between sleeve 22 and the middle base 21; Between cutting ferrule 24 and the sleeve 22, be provided with seal between cutting ferrule 24 and the middle base 21, like sealing shroud.

From above description, can find out that the Filling gun head of the utility model because device itself is specific, can be realized the self-locking and the automatic filling process of male joint 4 through feeding compressed air, automaticity is high, saves manpower.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. Filling gun head; Comprise perfusion seat (1) and the Connection Block (2) that links to each other with said perfusion seat (1), said Connection Block (2) is provided with the male joint installing space, and said perfusion seat (1) and said Connection Block (2) are provided with one or more male joint communication passage; It is characterized in that

Said Connection Block (2) comprises sleeve (22) and is set in the outer connecting cylinder of said sleeve (22), forms the cutting ferrule installing space between said sleeve (22) and the said connecting cylinder;

Be provided with cutting ferrule sliding back and forth vertically (24) in the said cutting ferrule installing space;

First end of said cutting ferrule installing space is provided with passage (211), and second end of said cutting ferrule installing space is provided with first elastomeric element (25) that is used to make said cutting ferrule (24) to reset to first end of said cutting ferrule installing space;

Said sleeve (22) is provided with the locking piece passage of lateral direction penetrating sleeve wall and is arranged on movably and is used for the locking piece that locking is inserted into the male joint in the said sleeve (22) in the said locking piece passage;

Said cutting ferrule (24) comprises optionally with said locking piece corresponding matching so that first inside diameter and second inside diameter of locking of said locking piece or the said male joint of release.

2. Filling gun head according to claim 1 is characterized in that, the medial extremity of said locking piece passage is provided with and limits the limiting section that locking piece moves inward the position.

3. Filling gun head according to claim 2 is characterized in that, the limiting section of the medial extremity of said locking piece passage is annular internal projection.

4. according to each described Filling gun head among the claim 1-3, it is characterized in that,

The compartment of terrain is provided with refrigerant import (11), vacuum orifice (13) and spool and opens mouthful (12) on the end wall of first end of said perfusion seat (1); The compartment of terrain is provided with and vacuumizes fluid valve (131) and perfusion of fluid valve on the sidewall of first end of said perfusion seat (1); Said vacuum orifice (13) is communicated with the said fluid valve (131) that vacuumizes, and said refrigerant import (11) is communicated with said perfusion of fluid valve;

The junction of second end of said perfusion seat (1) and first end of said sleeve (22) has formed the plunger tip installing space jointly; Said plunger tip installing space is communicated with said male joint installing space; Said spool is opened mouthful (12), said fluid valve (131), the said perfusion of fluid valve of vacuumizing is communicated with said plunger tip installing space respectively; Plunger tip (3) is installed in the said plunger tip installing space movably; Second end of said plunger tip installing space is provided with second elastomeric element (34) that is used to make said plunger tip (3) to reset to first end of said plunger tip installing space; Said plunger tip (3) set inside has the perfusion channel (31) that runs through, and said perfusion channel (31) is split into many by-paths at the end towards said Connection Block (2), forms abutting part (32) between many said by-paths; Said perfusion channel (31) has the state that is communicated with said vacuum orifice (13) at the said fluid valve (131) that vacuumizes when opening, when said perfusion of fluid valve is opened, have the state that is communicated with said refrigerant import (11).

5. Filling gun head according to claim 4; It is characterized in that; Said perfusion of fluid valve comprises thick filling fluid valve (111) and the smart fluid valve (112) of irritating; Said refrigerant import (11) is communicated with said thick filling fluid valve (111) and the said smart fluid valve (112) of irritating respectively, and said plunger tip installing space is communicated with said thick filling fluid valve (111) and the said smart fluid valve (112) of irritating respectively.

6. Filling gun head according to claim 4; It is characterized in that; The sidewall of said plunger tip (3) is provided with first through hole (33) perpendicular to said perfusion channel (31), and said perfusion channel (31) is communicated with said vacuum orifice (13) through said first through hole (33) when opening at the said fluid valve (131) that vacuumizes.

7. Filling gun head according to claim 6 is characterized in that, said first through hole (33) is arranged at first end of the sidewall of said plunger tip (3).

8. Filling gun head according to claim 4 is characterized in that, the quantity of said by-path is three.

9. Filling gun head according to claim 4 is characterized in that, said first elastomeric element (25) and/or said second elastomeric element (34) are spring.

10. according to each described Filling gun head among the claim 1-3; It is characterized in that; Said connecting cylinder comprises: be arranged at said connecting cylinder away from the end seat (23) of an end of said perfusion seat (1) and the middle base (21) that is connected with second end of said perfusion seat (1); The inwall of said middle base (21) is connected with the outer wall of said sleeve (22)

The middle part of said end seat (23) is provided with the public access through hole, and second end of said sleeve (22) is connected with said end seat (23), and the inwall of said sleeve (22) constitutes said male joint installing space with said public access through hole,

Said passage (211) is the through hole on the sidewall that is arranged at said middle base (21); End near said end seat (23) on the inwall of said middle base (21) is provided with cutting ferrule installation annular groove, and said cutting ferrule is installed between annular groove and said sleeve (22) and the said end seat (23) and surrounded said cutting ferrule installing space jointly.

11. Filling gun head according to claim 10; It is characterized in that, between said plunger tip (3) and the said perfusion seat (1), between said plunger tip (3) and the said sleeve (22), between said sleeve (22) and the said middle base (21), between said cutting ferrule (24) and the said sleeve (22), be respectively arranged with seal between said cutting ferrule (24) and the said middle base (21).

12. Filling gun head according to claim 11 is characterized in that, said seal is a sealing shroud.

13. Filling gun head according to claim 1 is characterized in that, said locking piece is steel ball (221).