CN111964315A

CN111964315A - Filling gun capable of reducing loss of refrigerant

Info

Publication number: CN111964315A
Application number: CN202010833174.1A
Authority: CN
Inventors: 涂德文; 周振豪
Original assignee: Foshan East Willow Automation Technology Co ltd
Current assignee: Foshan East Willow Automation Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-11-20
Anticipated expiration: 2040-08-18
Also published as: CN111964315B

Abstract

The invention relates to the technical field of filling guns, in particular to a filling gun capable of reducing refrigerant loss, which comprises a handle, wherein the top of the handle is fixedly connected with a gun body, one side of the inside of the gun body is fixedly connected with an electromagnetic valve seat, one side of the electromagnetic valve seat is fixedly connected with a thimble cylinder, a pneumatic contraction thimble is movably inserted in the thimble cylinder, a second spring is movably sleeved on the outer surface of the pneumatic contraction thimble, one side of the thimble cylinder is rotatably connected with a tripping seat, the middle part of the inside of the tripping seat is fixedly connected with a honeycomb fixing frame, a thimble sleeve is fixedly connected in the honeycomb fixing frame, and a sealing thimble is movably inserted in the thimble sleeve. The coolant sprayed by the gun head is sealed in the gun body, so that the coolant is not sprayed out when the gun body is pulled out or is in misoperation, the personal safety of operators is ensured, and meanwhile, the accuracy of filling the coolant into products is ensured.

Description

Filling gun capable of reducing loss of refrigerant

Technical Field

The invention relates to the technical field of filling guns, in particular to a filling gun capable of reducing refrigerant loss.

Background

In the production line of the refrigeration industry of the air conditioner, the refrigerator, the heat pump and the like at present, all products need to be filled with quantitative refrigerant before leaving factory and running, the product compressor system is damaged due to the fact that the amount of the filled refrigerant is too large, the quality problems of poor product refrigeration or heating effect and the like are caused due to the fact that the amount of the filled refrigerant is too small, the product rapid tool is connected with a product gun head in a butt joint mode when the refrigerant filling machine fills the refrigerant into the product, the interior of the rapid tool is in a spring self-sealing state, a thimble in the gun head of the filling machine is forced to abut against a tool spring under the action of air pressure during butt joint to realize the communication state, the refrigerant can be filled into the product at the moment, the thimble in the filling gun is reset after filling is finished, the product rapid tool is reset, a large amount of high-pressure refrigerant remains in the gun body due to the structure of the gun body, the refrigerant is sprayed, and the accuracy of filling the product is influenced by the sprayed refrigerant, so that a filling gun for reducing the loss of the refrigerant is designed to ensure the personal safety and the filling accuracy of operators.

Disclosure of Invention

The invention provides a filling gun capable of reducing loss of a refrigerant, which has the advantage of preventing leakage and solves the problems that a large amount of high-pressure refrigerant remains in the gun body due to the structure of the gun body, the refrigerant is sprayed out of the gun head when the gun is pulled out, the safety of operators is seriously affected by the sprayed refrigerant, and the precision of filling the product is also affected by the sprayed refrigerant.

In order to achieve the technical problem, the invention provides a filling gun capable of reducing loss of refrigerant, which comprises a handle, wherein the top of the handle is fixedly connected with a gun body, one side inside the gun body is fixedly connected with an electromagnetic valve seat, one side of the electromagnetic valve seat is fixedly connected with a thimble cylinder, a pneumatic contraction thimble is movably inserted into the thimble cylinder, the outer surface of the pneumatic contraction thimble is movably sleeved with a second spring, one side of the thimble cylinder is rotatably connected with a tripping seat, the middle part inside the tripping seat is fixedly connected with a honeycomb fixing frame, a thimble sleeve is fixedly connected into the honeycomb fixing frame, and a sealing thimble is movably inserted into the thimble sleeve.

Furthermore, a push rod is movably inserted in the middle of the left side of the electromagnetic valve seat, and a first spring is movably sleeved on the outer surface of the push rod.

Furthermore, the outer surface activity of pneumatic shrink thimble has cup jointed the sealing washer, the surface cup joints the sealing member of sealing washer, and the sealing member is located the inside of thimble cylinder.

Furthermore, one end of the first spring is in contact with the pneumatic contraction thimble, and the other end of the first spring is in contact with the tripping seat.

Further, one end of the second spring is in contact with the push rod, and the other end of the second spring is in contact with the electromagnetic valve seat.

Furthermore, one side of the tripping seat, which is far away from the thimble cylinder, is fixedly connected with a tripping cylinder body, and the middle part inside the tripping cylinder body is movably connected with a quick connector.

By means of the technical scheme, the invention provides the filling gun capable of reducing the loss of the refrigerant, which at least has the following beneficial effects:

1. the filling gun capable of reducing the loss of the refrigerant is used by matching the honeycomb fixing frame, the thimble sleeve and the sealing thimble, after a product is filled with the refrigerant, the interior of the gun body and the residual high-pressure refrigerant in the pneumatically-contracted thimble are separated from the gun head at the moment, the high-pressure refrigerant in the pneumatically-contracted thimble pushes the sealing thimble, the self-sealing elliptical block is pushed to a clamping groove at the outlet of the thimble sleeve, the self-sealing elliptical block is tightly matched with the clamping groove to realize sealing, so that the residual refrigerant in the interior of the gun body is not externally sprayed, then the gun body is emptied through the pressure discharging device, when the gun head of the filling machine is not completely butted with the product tool or is in error action, the refrigerant sprayed by the gun head is also sealed in the gun body, finally, the gun body is pulled out or the refrigerant is not externally sprayed when the gun body is in error action, the personal safety of an operator is ensured, and meanwhile.

2. This reduce filling rifle of refrigerant loss, through the setting of pneumatic shrink thimble, when connecting the product frock, the pneumatic shrink thimble relies on compressed air and frock to carry out the butt joint by force, backs down the product frock, and the inside sealed thimble receives product frock pressure influence this moment, slides backward to the honeycomb mount in, realizes the effect that the inside and product of pneumatic shrink thimble connect the intercommunication soon.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic view of a sealing thimble according to the present invention.

In the figure: 1. a handle; 2. a gun body; 3. a push rod; 4. a first spring; 5. an electromagnetic valve seat; 6. a thimble cylinder; 7. pneumatically retracting the thimble; 8. a seal member; 9. a seal ring; 10. a tripping seat; 11. a honeycomb mount; 12. a thimble sleeve; 13. sealing the thimble; 14. a second spring; 15. tripping the cylinder body; 16. a quick coupling.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a reduce filling rifle of refrigerant loss, including handle 1, the top fixedly connected with rifle body 2 of handle 1, one side fixedly connected with electromagnetism disk seat 5 of rifle body 2 inside, electromagnetism disk seat 5 one side fixedly connected with thimble cylinder 6, the inside activity of thimble cylinder 6 is pegged graft and is had pneumatic shrink thimble 7, setting through pneumatic shrink thimble 7, when connecting the product frock, pneumatic shrink thimble 7 relies on compressed air and frock to carry out the butt joint by force, open the product frock, inside seal thimble 13 receives the influence of product frock pressure this moment, slide backward to in honeycomb mount 11, realize the inside effect of connecing the intercommunication fast with the product of pneumatic shrink thimble. A second spring 14 is movably sleeved on the outer surface of the pneumatic retractable thimble 7, one side of the thimble cylinder 6 is rotatably connected with a tripping seat 10, the middle part of the inside of the tripping seat 10 is fixedly connected with a honeycomb fixing frame 11, the inside of the honeycomb fixing frame 11 is fixedly connected with a thimble sleeve 12, a sealing thimble 13 is movably inserted in the inside of the thimble sleeve 12, the sealing thimble 13 is pushed by the high-pressure refrigerant in the inside of the gun body 2 and the pneumatic retractable thimble 7 through the matching use of the honeycomb fixing frame 11, the thimble sleeve 12 and the sealing thimble 13, after the refrigerant is filled into the product, the high-pressure refrigerant in the inside of the gun body 2 and the residual high-pressure refrigerant in the pneumatic retractable thimble 7 is released instantaneously, the self-sealing ellipse block is pushed to a clamping groove at the outlet of the thimble sleeve 12, the self-sealing ellipse block is tightly matched with the clamping groove to realize sealing, so that the residual refrigerant in the gun body 2 has no outward spraying phenomenon, when the gun head of the filling machine is not completely butted with a product tool or has false action, the refrigerant sprayed by the gun head is sealed in the gun body 2, so that the gun body 2 is pulled out or has no refrigerant to be sprayed outwards when in false action, the personal safety of operators is ensured, and meanwhile, the accuracy of filling the refrigerant into the product is ensured.

The left middle part activity of solenoid valve seat 5 is pegged graft and is had push rod 3, the surface activity of push rod 3 has cup jointed first spring 4, the surface activity of pneumatic shrink thimble 7 has cup jointed sealing washer 9, sealing washer 8 has been cup jointed to the surface of sealing washer 9, and sealing washer 8 is located the inside of thimble cylinder 6, the one end and the pneumatic shrink thimble 7 contact of first spring 4, the other end and the release seat 10 contact of first spring 4, the one end and the push rod 3 contact of second spring 14, the other end and the solenoid valve seat 5 contact of second spring 14, one side fixedly connected with tripping cylinder body 15 of thimble cylinder 6 is kept away from to release seat 10, the inside middle part swing joint of tripping cylinder body 15 has quick-operation joint 16.

When the pneumatic retractable thimble 7 is used and connected with a product tool, the pneumatic retractable thimble 7 is forcibly butted against the tool by means of compressed air to jack the product tool, at the moment, the internal sealing thimble 13 is influenced by the pressure of the product tool and slides backwards into the honeycomb fixing frame 11 to realize the quick connection and intercommunication between the interior of the pneumatic retractable thimble 7 and a product, thereby facilitating the filling of a refrigerant, when the filling of the refrigerant of the product is finished, the high-pressure refrigerant at the internal part of the gun body 2 and the internal part of the pneumatic retractable thimble 7 is high-pressure refrigerant, at the moment, the high-pressure refrigerant in the pneumatic retractable thimble 7 is released from the gun head instantly, the sealing thimble 13 is pushed, the self-sealing oval block is arranged at the clamping groove of the outlet of the thimble sleeve 12, the self-sealing oval block is tightly matched with the clamping groove to realize sealing, so that no external spraying phenomenon remains in the gun body 2, then the gun body 2 is emptied by a refrigerant pressure, the coolant sprayed by the gun head is sealed in the gun body 2, so that the gun body 2 is finally pulled out or is not sprayed outwards by the coolant when in misoperation, the personal safety of operators is ensured, and meanwhile, the accuracy of filling the coolant into products is ensured.

The reduced refrigerant loss fill gun provided by the present invention is described in detail above. The principles and embodiments of the present invention have been explained by applying specific examples, and the above descriptions of the embodiments are only used to help understanding the method and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A filling gun for reducing refrigerant loss, comprising a handle (1), characterized in that: the pneumatic retractable thimble structure is characterized in that a gun body (2) is fixedly connected to the top of the handle (1), an electromagnetic valve seat (5) is fixedly connected to one side of the inside of the gun body (2), an ejector pin cylinder (6) is fixedly connected to one side of the electromagnetic valve seat (5), a pneumatic retractable thimble (7) is inserted into the inside of the ejector pin cylinder (6), a second spring (14) is sleeved on the outer surface of the pneumatic retractable thimble (7) in a movable mode, a release seat (10) is rotatably connected to one side of the ejector pin cylinder (6), a honeycomb fixing frame (11) is fixedly connected to the middle of the inside of the release seat (10), a thimble sleeve (12) is fixedly connected to the inside of the honeycomb fixing frame (11), and a sealing thimble (13) is inserted into the inside of the thimble sleeve.

2. The charging gun for reducing refrigerant loss according to claim 1, wherein: the middle part of the left side of the electromagnetic valve seat (5) is movably inserted with a push rod (3), and the outer surface of the push rod (3) is movably sleeved with a first spring (4).

3. The charging gun for reducing refrigerant loss according to claim 1, wherein: a sealing ring (9) is movably sleeved on the outer surface of the pneumatic contraction ejector pin (7), a sealing element (8) is sleeved on the outer surface of the sealing ring (9), and the sealing element (8) is located inside the ejector pin cylinder (6).

4. The charging gun for reducing refrigerant loss according to claim 2, wherein: one end of the first spring (4) is in contact with the pneumatic contraction thimble (7), and the other end of the first spring (4) is in contact with the tripping seat (10).

5. The charging gun for reducing refrigerant loss according to claim 1, wherein: one end of the second spring (14) is in contact with the push rod (3), and the other end of the second spring (14) is in contact with the electromagnetic valve seat (5).

6. The charging gun for reducing refrigerant loss according to claim 1, wherein: one side of the tripping seat (10) far away from the thimble cylinder (6) is fixedly connected with a tripping cylinder body (15), and the middle part inside the tripping cylinder body (15) is movably connected with a quick connector (16).