CN215293617U - Air conditioner liquid feeding valve - Google Patents
Air conditioner liquid feeding valve Download PDFInfo
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- CN215293617U CN215293617U CN202121839889.4U CN202121839889U CN215293617U CN 215293617 U CN215293617 U CN 215293617U CN 202121839889 U CN202121839889 U CN 202121839889U CN 215293617 U CN215293617 U CN 215293617U
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Abstract
The air conditioner liquid adding valve comprises a valve body with a three-way structure, wherein a straight pipe section and a horizontal pipe section are arranged on the valve body, a valve rod connected with a hand wheel is arranged in the straight pipe section, a screw thread section, a reducing section, a conical surface expanding section and an ejector pin section are arranged on the valve rod, the straight pipe section is connected with a valve core pipe section, a through hole is radially arranged on the valve core pipe section, a limiting step integrated with the valve core pipe section is axially arranged on the through hole, the limiting step divides the through hole into an upper half part and a lower half part which are mutually communicated, and the conical surface expanding section is matched with a sealing ring arranged in the straight pipe section to control the opening and closing of the air conditioner liquid adding valve. The utility model discloses a screw thread section, the section of reducing footpath, conical surface hole enlargement section, thimble section multistage structure on the valve rod improve the valve rod to the control of valve body switching precision, prolong air conditioner liquid feeding valve's life, reduce the liquid feeding trouble.
Description
Technical Field
The utility model relates to a valve especially indicates to relate to an air conditioner liquid feeding valve.
Background
The air conditioner liquid adding valve is a key part used in the process of adding the refrigerant into the air conditioner. The main technical requirements for the air-conditioning liquid adding valve at present are good liquid adding tightness and long service life. The sealing ring for controlling opening and closing of the existing air conditioner liquid adding valve moves up and down along with the valve rod, and the valve rod often causes the rotation deformation of the sealing ring in the opening and closing process, so that the sealing ring cannot reach the sealing performance after long-term use, the service life of the liquid adding valve is shortened, the liquid adding safety is improved, the movable deformation of the sealing ring is avoided, and the service life of the air conditioner liquid adding valve is prolonged.
Chinese utility model patent CN200720042792.4 discloses a device for adding refrigerant to an air-conditioning refrigeration system. The thimble expansion controller is characterized by comprising a hand wheel, a thimble, a joint, a connecting pipe, a connecting nut, a straight-through pipe and a thimble expansion controller consisting of a fixing nut, wherein the thimble is fixedly connected to the hand wheel through the connecting rod, the thimble is sleeved in a pipeline connected by the joint, the connecting pipe, the connecting nut, the straight-through pipe and the fixing nut in a penetrating manner, the thimble head is arranged in the front end joint, the connecting rod is provided with a thread which is in matched connection with an internal thread of the fixing nut, a sealing ring is arranged between the connecting rod and the fixing nut, and a liquid inlet of the straight-through pipe is connected with the liquid feeding pipe and the three-way meter valve.
The air conditioner liquid adding valve structure mainly relies on the ejector pin to open and close the valve inside on the refrigeration equipment to open and close liquid adding, and does not have the opening and closing control of the air conditioner liquid adding valve, and further does not consider the design service life prolonging on the basis of the opening and closing of the liquid adding valve.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air conditioner liquid feeding valve with safe refrigerant liquid feeding and long service life.
The air conditioner liquid adding valve comprises a valve body with a three-way structure, wherein a straight pipe section and a horizontal pipe section are arranged on the valve body, a valve rod connected with a hand wheel is arranged in the straight pipe section, a screw thread section, a reducing section, a conical surface expanding section and an ejector pin section are arranged on the valve rod, the straight pipe section is connected with a valve core pipe section, a through hole is radially arranged on the valve core pipe section, a limiting step integrated with the valve core pipe section is axially arranged on the through hole, the limiting step divides the through hole into an upper half part and a lower half part which are mutually communicated, a sealing ring is matched with a conical surface of the conical surface expanding section, the back surface of the conical surface is a horizontal plane, and the horizontal plane is matched with the limiting step. The air conditioner liquid adding valve controls the stroke of the valve rod in the front-back movement through the thread section, the reducing section, the conical surface expanding section and the thimble section which are arranged on the valve rod, the reducing section improves the space between the valve rod and the valve body to increase the cooling capacity of a refrigerant, the conical surface expanding section is used as a valve core structure for controlling the opening and closing of the air conditioner liquid adding valve and matched with a fixed sealing ring on the valve body, and the thimble section controls the opening and closing of a valve core on refrigeration equipment, so that the technical effect of preventing the deformation of the sealing ring is achieved by adopting the conical surface expanding section structure on the basis of realizing the opening and closing functions of the air conditioner liquid adding valve, and the service life of the liquid adding valve is prolonged.
The hand wheel and the valve body are provided with valve caps which are in threaded connection with the valve body. The valve body and valve cap link be equipped with first sealing washer, valve rod is cup jointed to first sealing washer. The top position that valve body and valve rod are connected has formed seal structure to the first sealing washer of valve cap structure cooperation, and valve cap threaded connection valve body becomes the holding down force to the valve body for first sealing washer axial atress, first sealing washer radial deformation improve the sealing performance between first sealing washer and the valve rod and prevent the leakage problem.
The thread section is in threaded connection with the valve body on the upper side of the transverse pipe section, so that the technical purpose of controlling the vertical movement precision of the valve rod is achieved.
The thimble section is in clearance fit with an inner hole of the valve core section to provide a liquid feeding flow passage for the refrigerant.
The bottom of the valve core pipe section is provided with an expanding pipe opening, one side of the expanding pipe opening is provided with a second sealing ring, and the other side of the expanding pipe opening is provided with a clamp spring. The clamp spring is clamped with a movable joint. The movable joint structure connected by the clamp spring is beneficial to tight connection between the liquid adding valve and the refrigeration equipment, the movable joint can avoid rotation of the liquid adding valve, the liquid adding valve is still, connection between the liquid adding valve and the refrigeration equipment can be achieved as long as the movable joint rotates, and convenience in installation of the liquid adding valve is improved.
The utility model discloses a plurality of functional sections of valve rod realize the accurate control to the liquid feeding valve to the technical structure who adopts conical surface hole enlargement section cooperation sealing washer reaches the switching performance of liquid feeding valve self, and on the other hand sealing washer structure is fixed motionless, and the liquid feeding valve switching nature is realized to conical surface hole enlargement section up-and-down motion, has prolonged the safety in utilization and the life of liquid feeding valve.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a schematic cross-sectional view of a liquid adding valve of an air conditioner according to the present invention;
FIG. 2 is a schematic view of the structure of the middle valve core pipe section of the present invention;
fig. 3 is a schematic view of the sectional structure of the middle valve core pipe section of the present invention.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, the liquid adding valve for the air conditioner comprises a valve body 4 with a three-way structure, wherein a straight pipe section and a horizontal pipe section are arranged on the valve body 4, a valve rod 2 connected with a hand wheel 1 is arranged in the straight pipe section, and a screw thread section 13, a reducing section 12, a conical surface expanding section 5 and an ejector pin section 7 are arranged on the valve rod 2. The straight pipe section is connected with a valve core pipe section 10, the valve core pipe section 10 is radially provided with a through hole 11, the through hole 11 is axially provided with a limiting step 17 integrated with the valve core pipe section 10, and the limiting step 17 divides the through hole 11 into an upper half part and a lower half part which are mutually communicated. The conical surface of the conical surface expanding section 5 is matched with the sealing ring 3, the back surface of the conical surface is a horizontal surface, and the horizontal surface is matched with the limiting step 17. The utility model discloses specific liquid feeding flow does: the hand wheel 1 controls the valve rod 2 to rotate downwards, at the moment, the conical surface expanding section 5 and the sealing ring 3 are separated, the air-conditioning charging valve is opened, then the ejector pin section 7 jacks the valve core on the refrigeration equipment, the refrigerant charging flow channel enters from the horizontal pipe section, passes through the upper half part of the through hole 11 to reach the lower half part of the through hole 11, finally enters the refrigeration equipment, after charging is completed, the hand wheel 1 controls the valve rod 2 to rotate upwards, and the conical surface expanding section 5 and the sealing ring 3 close the air-conditioning charging valve in a sealing mode. In the process, the limiting step 17 and the through hole 11 achieve the technical purpose of limiting the internal flow passage of the air-conditioning charging valve and the stroke of the valve rod.
Preferably, a valve cap 15 is arranged between the hand wheel 1 and the valve body 4, and the valve cap 15 is in threaded connection with the valve body 4. The valve body 4 is equipped with first sealing washer 14 with 15 link of valve cap, and first sealing washer 14 cup joints the sealing performance of valve rod 2 in order to improve the filling valve, prevents to leak.
The thread section 13 is preferably connected with the valve body 4 on the upper side of the horizontal pipe section in a threaded mode, so that the refrigerant is prevented from overflowing upwards, and the sealing performance of the valve body is improved. The thimble section 7 is in clearance fit with the inner hole 6 of the valve core pipe section 10.
In order to improve the utility model discloses use convenience case pipeline section 10 bottom to be equipped with the hole enlargement mouth of pipe, second sealing washer 9 is installed to hole enlargement mouth of pipe one side, and jump ring 20 is installed to the opposite side. The clamp spring 20 is clamped with a movable joint 8, and the technical performance of the refrigeration equipment is connected on the basis that the valve body is not moved through the movable joint 8.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides an air conditioner liquid feeding valve, includes three way construction's valve body (4), is equipped with a straight tube section and a horizontal pipe section on valve body (4), is equipped with valve rod (2) of connecting hand wheel (1) in the straight tube section, valve rod (2) on be equipped with screw thread section (13), undergauge section (12), conical surface hole enlargement section (5), thimble section (7), the straight tube section be connected with case pipeline section (10), case pipeline section (10) radially are equipped with through-hole (11), through-hole (11) axial is equipped with spacing step (17) integrative with case pipeline section (10), spacing step (17) divide into through-hole (11) first half and the latter half that communicates each other, conical surface cooperation sealing washer (3) of conical surface hole enlargement section (5), the back of conical surface is the horizontal plane, horizontal plane cooperation spacing step (17).
2. The air conditioner charging valve of claim 1, characterized in that: hand wheel (1) and valve body (4) between be equipped with valve cap (15), valve cap (15) threaded connection valve body (4).
3. The air conditioner charging valve of claim 2, characterized in that: valve body (4) and valve cap (15) link be equipped with first sealing washer (14), valve rod (2) are cup jointed in first sealing washer (14).
4. The air conditioner charging valve of claim 1, characterized in that: the thread section (13) is in threaded connection with the valve body (4) on the upper side of the transverse pipe section.
5. The air conditioner charging valve of claim 1, characterized in that: the thimble section (7) is in clearance fit with the inner hole (6) of the valve core pipe section (10).
6. The air conditioner charging valve of claim 1, characterized in that: the bottom of the valve core pipe section (10) is provided with an expanding pipe opening, one side of the expanding pipe opening is provided with a second sealing ring (9), and the other side of the expanding pipe opening is provided with a clamp spring (20).
7. The air conditioner charging valve of claim 6, characterized in that: the clamp spring (20) is clamped with a movable joint (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121839889.4U CN215293617U (en) | 2021-08-06 | 2021-08-06 | Air conditioner liquid feeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121839889.4U CN215293617U (en) | 2021-08-06 | 2021-08-06 | Air conditioner liquid feeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215293617U true CN215293617U (en) | 2021-12-24 |
Family
ID=79526586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121839889.4U Active CN215293617U (en) | 2021-08-06 | 2021-08-06 | Air conditioner liquid feeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215293617U (en) |
-
2021
- 2021-08-06 CN CN202121839889.4U patent/CN215293617U/en active Active
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