CN210463686U - Filling head for air conditioner refrigerant - Google Patents
Filling head for air conditioner refrigerant Download PDFInfo
- Publication number
- CN210463686U CN210463686U CN201921415289.8U CN201921415289U CN210463686U CN 210463686 U CN210463686 U CN 210463686U CN 201921415289 U CN201921415289 U CN 201921415289U CN 210463686 U CN210463686 U CN 210463686U
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- Prior art keywords
- clamping
- filling
- refrigerant
- filling head
- pressurizing
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 238000005429 filling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air conditioner is filling head for refrigerant, filling head include clamping component, and clamping component includes clamping element and clamping piston, and filling head still includes the anticreep subassembly, and the anticreep subassembly includes: the pressurizing component is positioned above the clamping piece; and the pressurizing channel is positioned above the pressurizing part and is communicated with the refrigerant filling channel. The utility model has the advantages of convenient operation and good safety.
Description
Technical Field
The utility model relates to a refrigerant filling technique especially relates to a can with the supporting use of car production line, accomplish the filling head for air conditioner refrigerant of first filling.
Background
In order to obtain good environmental protection, refrigerant R744 has been used to replace R123 and R134a in the prior art, so as to achieve the purposes of not destroying the ozone layer and reducing the greenhouse effect.
Although the destructive environmental impact of the R744 refrigerant is almost negligible, the refrigerant has a high critical point pressure and a low critical point temperature, and therefore requires a higher working pressure during compression. In this respect, the technical scheme of directly filling the refrigerant after clamping the filling head by the clamping claw or the clamping steel ball is adopted, and the prior art cannot be directly applied to the first filling of the refrigerant of the air conditioner R744 because the possibility of loosening of the filling head caused by the high-pressure R744 refrigerant cannot be prevented.
The utility model patent No. ZL201680009999.3 discloses a refrigerant R744 annotates filling head of vehicle air conditioner, and filling head is tight on the district section that vehicle air conditioner system set up specially at first through the spheroid clamp of clamping element, and secondly control pressure acts on a piston face of clamp piston, and at last with the help of the bypass line who effectively communicates with the refrigerant, applys filling pressure on another piston face of clamp piston, two kinds of pressure sources of loading promptly to reach reliable clamp and press from both sides the mesh. But this structure virtually increases the complexity of the filling operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming that exists among the prior art, provide a filling head, this filling head establishes through the high pressure of refrigerant act on the clamping piece, in order to reach the anticreep subassembly that prevents the filling in-process and fill the head pine and take off the purpose, and the technical scheme of adoption is: the utility model provides an air conditioner is filling head for refrigerant, includes clamping assembly, clamping assembly includes clamping piece and clamping piston, its characterized in that: the filling head still includes the anticreep subassembly, the anticreep subassembly includes:
a pressing member located above the clamping member;
and the pressurizing channel is positioned above the pressurizing part and is communicated with the refrigerant filling channel.
The structure of the pressurizing component is as follows: the pressurizing part comprises a balance sealing seat positioned below the pressurizing channel and a retainer matched with the balance sealing seat, and the bottom of the retainer is opposite to the clamping piece.
The positions of the clamping pieces are: the clamping piece is located one side of the clamping piston, and a positioning groove matched with the clamping piece is formed in the air conditioner filling opening.
In order to realize the purpose of moving and clamping the clamping piece, the end part of the clamping piston is provided with a groove matched with the clamping piece in shape.
In order to ensure the resetting precision of the clamping piston, an air nozzle is arranged above the clamping piston.
The beneficial effects of the utility model reside in that: in order to prevent pollution and possible safety hazard caused by accidental loosening of the filling head, the filling head is provided with an anti-loosening component which can pressurize a clamping member during filling, and the pressure loaded on the clamping member is added through the anti-loosening component, so that accidental loosening of the filling head during filling is effectively prevented, and safety production accidents caused by loosening of the filling head are avoided; the utility model has the advantages of convenient operation and good safety.
Drawings
Fig. 1 is the utility model discloses structural schematic, fig. 2 is the utility model discloses operation use schematic, fig. 3 is the utility model discloses press from both sides tight state schematic, fig. 4 is the utility model discloses air conditioner filler check valve state schematic is backed up to the thimble, and fig. 5 is the utility model discloses filling in-process anticreep balanced state schematic. The device comprises a clamping piece 1, a sealing ring 2, a retaining ring 3, a sealing end cover 4, a thimble 5, a clamping piston 6, a spring pressing sleeve 7, a filling head body 8, a separating ring 9, a spring 10, a thimble sealing ring 11, a balance sealing seat 12, a retainer 13, a sealing cap 14, an air conditioner filling opening 15, an air tap 16, a pressurizing channel 17 and a refrigerant filling channel 18.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The utility model discloses an air conditioner is filling head for refrigerant, filling head include filling head body 8, clamping component and anticreep subassembly, and the upper end threaded connection end cover 4 of filling head body 8, lower extreme threaded connection sealing cap 14 install the thimble 5 of the filling check valve of 15 departments of overhead air conditioner filler in the filling head body 8.
The clamping assembly comprises a clamping piece 1 and a clamping piston 6, wherein the clamping piece 1 is positioned on one side of the clamping piston 6, an air tap 16 is arranged above the clamping piston 6, and the air tap 16 is connected with a high-pressure air source capable of driving the clamping piston 6 to move downwards. The lower end part of the clamping piston 6 is provided with a groove matched with the clamping piece 1 in shape. The clamping piece 1 is a clamping steel ball. Correspondingly, a positioning groove matched with the clamping piece 1 is formed on the air conditioner filling opening 15.
The anti-drop assembly includes a pressurizing member located above the clamping member and a pressurizing passage 17 located above the pressurizing member and communicating with a refrigerant filling passage 18. The pressurizing component comprises a balance sealing seat 12 positioned below a pressurizing channel 17 and a retainer 13 matched with the balance sealing seat 12, wherein the bottom of the retainer 13 is opposite to the clamping component 1. As can be seen from the figure, the lower end of the retainer 13 is provided with an extension part facing to the right, by means of which the retainer 14 is clamped at the sealing cap 14, and the upper end of the retainer 13 is provided with an extension part facing to the left, and the protruding extension part is matched with the bottom of the balance seal seat 12. The balance seal seat 12 is positioned between the isolation ring 9 and the balance seal seat 12, seal rings are arranged between the isolation ring 9, the balance seal seat 12 and the retainer 14, a pressurizing channel 17 is formed between the balance seal seat 12 and the retainer 14 through the action of the seal rings, and the high-pressure refrigerant cannot continuously overflow due to the existence of the pressurizing channel 17. When high-pressure refrigerant is conveyed and exists in the pressurizing channel 17, the balance sealing seat 12 pushes the retainer 14 to slightly move downwards under the action of pressure so as to achieve the purpose of pressing on the clamping piece 1, and when the clamping piece 1 is pressed under the action of pressure (particularly high pressure of the refrigerant R744), the clamping piece 1 can be effectively prevented from being accidentally loosened in the refrigerant filling process.
Correspondingly, the locking method realized by the filling head is that the filling head is clamped at the filling opening 15 of the air conditioner by the clamping part 1 driven by the clamping piston, the clamping force of the clamping piston 6 is borne by the clamping part 1 at the moment, and then the pressure generated by filling the refrigerant is applied to the clamping part 1 during filling the refrigerant (particularly during filling the high-pressure refrigerant) so as to lock the clamping part 1 and prevent the filling head from being loosened accidentally during the filling process.
In this method, the pressure generated by the refrigerant charging (which pressure is mainly derived from the high-pressure state of the refrigerant itself charged, such as the refrigerant R744) is applied to the clamping member 1 via the pressurizing member, which is located above the clamping member 1. The pressurizing part comprises a balance sealing seat 12 and a retainer 13 matched with the balance sealing seat 12, and the bottom of the retainer 13 is opposite to the clamping piece 1. The pressure generated during the refrigerant charging comes from the pressurizing passage, and the pressurizing passage 17 communicates with the refrigerant charging passage 18.
The filling head has the working principle that:
clamping by a clamping piece: the filling head is placed at an air conditioner filling opening 15, and the position relationship between the clamping piece 1 and the clamping piston 6 is shown in the attached figure 1. At the moment, a button corresponding to 'start clamping' is pressed, high-pressure gas is introduced through the gas nozzle 16, the clamping piston 6 moves downwards under the action of air pressure, the clamping piece 1 is pushed to move leftwards to enter a positioning groove of an air conditioner filling opening, the filling head is in a 'clamping' state, and the position relation between the piston and the clamping piece 1 is shown in the attached figure 3.
Vacuumizing: after the filling head is clamped, a corresponding control button is pressed, compressed air drives a thimble piston to move greatly, a thimble 5 is driven to jack a one-way valve of the air conditioner filling opening 15, and the air conditioner starts to be vacuumized, which is shown in figure 4.
Filling a refrigerant: after the vacuum pumping is finished, a corresponding control button is pressed, the refrigerant enters the air conditioner filling opening 15 downwards through the ejector pin, and the refrigerant conveying route forms a refrigerant filling channel 18. The pressurizing passage 17 is a passage branch communicating with the refrigerant filling passage and located between the balance seal holder 12 and the retainer 13. By means of the pressurizing channel 17, refrigerant pressure is applied to the clamping piece 1, and pressure borne by the clamping piece 1 is increased, so that the filling head is prevented from being accidentally loosened in the filling process, and the purpose of safe filling is achieved.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides an air conditioner is filling head for refrigerant, includes clamping assembly, clamping assembly includes clamping piece and clamping piston, its characterized in that: the filling head still includes the anticreep subassembly, the anticreep subassembly includes:
a pressing member located above the clamping member;
and the pressurizing channel is positioned above the pressurizing part and is communicated with the refrigerant filling channel.
2. The fill head of claim 1, wherein: the pressurizing part comprises a balance sealing seat positioned below the pressurizing channel and a retainer matched with the balance sealing seat, and the bottom of the retainer is opposite to the clamping piece.
3. Filling head according to claim 1 or 2, characterized in that: the clamping piece is located one side of the clamping piston, and a positioning groove matched with the clamping piece is formed in the air conditioner filling opening.
4. The fill head of claim 3, wherein: and the end part of the clamping piston is provided with a groove matched with the clamping piece in shape.
5. Filling head according to claim 1 or 2, characterized in that: an air nozzle is arranged above the clamping piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415289.8U CN210463686U (en) | 2019-08-29 | 2019-08-29 | Filling head for air conditioner refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415289.8U CN210463686U (en) | 2019-08-29 | 2019-08-29 | Filling head for air conditioner refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210463686U true CN210463686U (en) | 2020-05-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921415289.8U Active CN210463686U (en) | 2019-08-29 | 2019-08-29 | Filling head for air conditioner refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210463686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440488A (en) * | 2019-08-29 | 2019-11-12 | 济南易恒技术有限公司 | A kind of locking method of air-conditioning refrigerant filling head and the filling head |
-
2019
- 2019-08-29 CN CN201921415289.8U patent/CN210463686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440488A (en) * | 2019-08-29 | 2019-11-12 | 济南易恒技术有限公司 | A kind of locking method of air-conditioning refrigerant filling head and the filling head |
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