Air conditioner fluoridation exhaust valve

Abstract

The utility model discloses an air conditioner fluorination exhaust valve which comprises a ball body with a spherical cavity, the ball body is respectively communicated with an exhaust pipe, an air inlet pipe and an air outlet pipe, the diameter of the spherical cavity is respectively larger than that of the exhaust pipe, that of the air inlet pipe and that of the air outlet pipe, an ejector pin capable of moving is arranged in the exhaust pipe, an external thread is arranged on the exhaust pipe, and the ejector pin is arranged in the spherical cavity. The exhaust pipe is provided with an exhaust groove at the external thread, the exhaust groove is arranged along the length direction of the exhaust pipe, and the exhaust pipe is in threaded connection with an exhaust cap. Compared with the prior art, the diameter of the spherical cavity is larger than the diameters of the air inlet pipe, the air outlet pipe and the exhaust pipe, the spherical cavity provides buffering for entering refrigerants, and follow-up safe exhaust is facilitated. And secondly, all compressed gas is exhausted to the direction of the ball body along the exhaust groove in a mode that the ejector pin is pushed by the exhaust cap and cannot face fingers and a body, so that the safety is good.

Description

Technical Field

[0001] The utility model relates to the technical field of valve manufacturing, in particular to an air-conditioning fluorine adding and exhausting valve. Background Art

[0002] Refrigerant, commonly known as refrigerant, is the working fluid used in refrigeration systems such as air conditioners to transfer heat and produce a cooling effect. When the air conditioner's cooling performance deteriorates, refrigerant must be promptly refilled to ensure normal operation. Currently, when refrigerant pressure exceeds a certain level during refilling, exhaust is performed to return the pressure to a normal range. However, this existing exhaust method can spray onto people's hands and bodies, posing a safety hazard. Utility Model Content

[0003] The utility model provides an air-conditioning fluorine-filled exhaust valve, which is used to solve the problem that the existing exhaust method may spray onto the hands and body of people, causing potential safety hazards.

[0004] The utility model provides a fluorine-filled exhaust valve for an air conditioner, comprising a sphere with a spherical cavity, wherein the sphere is respectively connected to an exhaust pipe, an air inlet pipe and an air outlet pipe, the diameters of the spherical cavity are respectively larger than the diameters of the exhaust pipe, the air inlet pipe and the air outlet pipe, a movable ejector pin is provided in the exhaust pipe, an external thread is provided on the exhaust pipe, an exhaust groove is provided at the external thread of the exhaust pipe, the exhaust groove is arranged along the length direction of the exhaust pipe, and an exhaust cap is threadedly connected to the exhaust pipe.

[0005] Preferably, the ejector pin extends out of the exhaust pipe.

[0006] Preferably, a limiting column is fixed in the exhaust cap, and the limiting column is provided with a limiting groove adapted to the ejector pin.

[0007] Preferably, an anti-slip strip is provided on the outer side of the exhaust cap.

[0008] Preferably, an end of the ejector pin away from the sphere is provided with an impact surface, and the diameter of the impact surface is larger than the diameter of the ejector pin.

[0009] Preferably, a reinforcement ring is fixed at the connection between the exhaust pipe and the sphere, the reinforcement ring is also arranged between the sphere and the air inlet pipe, and the reinforcement ring is also arranged between the sphere and the air outlet pipe, and the diameter of the reinforcement ring is smaller than the diameter of the sphere.

[0010] Preferably, the exhaust pipe is provided with a chamfered right-angle structure at one end away from the sphere.

[0011] Compared with the prior art, the utility model adds a connecting device at the connection between the valve body and the pressure gauge, so that the pressure gauge and the valve body can be quickly connected and removed. When the pressure gauge is damaged, a new pressure gauge can be replaced at any time, and the entire gauge valve group can be used immediately. In this way, the gauge valve group can be reused, which is beneficial to reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the exhaust cap of the present utility model;

[0016] Figure 4 It is a cross-sectional schematic diagram of the exhaust cap of the present utility model;

[0017] Reference numerals:

[0018] 1. Spherical cavity, 2. Sphere, 3. Exhaust pipe, 4. Inlet pipe, 5. Outlet pipe, 6. Ejector pin, 7. Exhaust groove, 8. Exhaust cap, 9. Limit column, 10. Limit groove, 11. Anti-slip strip, 12. Impact surface, 13. Reinforcement ring, 14. Valve body, 15. Knob switch, 16. Air supply pipe, 17. Pressure gauge. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Refer to the attached Figure 1-2This embodiment provides an air conditioner fluorine filling and exhaust valve, comprising a spherical body 2 having a spherical cavity 1. The spherical body 2 is connected to an exhaust pipe 3, an air inlet pipe 4, and an air outlet pipe 5. The air inlet pipe 4 is connected to a valve body 14. The valve body 14 is provided with an air supply pipe 16 and a pressure gauge 17. The pressure gauge 17 is used to detect the air pressure in the air inlet pipe 4. A knob switch 15 is used to control the connection between the air supply pipe 16 and the air inlet pipe 4. The diameter of the spherical cavity 1 is larger than the diameters of the exhaust pipe 3, the air inlet pipe 4, and the air outlet pipe 5. Refrigerant from the air inlet pipe 4 enters the spherical cavity 1 and then flows to the air outlet pipe 5 and the exhaust pipe 3. The relatively large space within the spherical cavity 1 can buffer the incoming refrigerant. This arrangement improves safety and facilitates safe exhaust later. A movable ejector pin 6 is provided within the exhaust pipe 3. The exhaust pipe 3 is provided with an external thread. An exhaust groove 7 is provided at the external thread of the exhaust pipe 3. The exhaust groove 7 is used for exhaust. The exhaust groove 7 is arranged on the exhaust pipe 3 to determine its exhaust position. The exhaust groove 7 is arranged along the length direction of the exhaust pipe 3, and the exhaust cap 8 is threadedly connected to the exhaust pipe 3. Normally, the exhaust pipe 3 is closed by the ejector pin 6, and the gas in the exhaust pipe 3 cannot escape. When the air pressure in the refrigerant filling valve body 14 is too high, the exhaust cap 8 is rotated, and the exhaust cap 8 moves toward the sphere 2. The exhaust cap 8 pushes the ejector pin 6 to move, and the gas in the exhaust pipe 3 is discharged from the ejector pin 6 into the exhaust cap 8, and then discharged along the exhaust groove 7 toward the sphere 2. This exhaust direction will not face the fingers or the body, and is safe. When the air pressure returns to the normal range, the exhaust cap 8 is rotated in the opposite direction, and the exhaust cap 8 releases the pressure on the ejector pin 6, and the ejector pin 6 returns to its original position to close the exhaust pipe 3.

[0021] As another embodiment of the present invention, the ejector pin 6 extends out of the exhaust pipe 3 , and this arrangement facilitates the exhaust cap 8 to push the ejector pin 6 .

[0022] As another embodiment of the present invention: Figure 4 A limiting column 9 is fixed in the exhaust cap 8, and the limiting column 9 is provided with a limiting groove 10 adapted to the ejector pin 6. When the exhaust cap 8 pushes the ejector pin 6, the setting of the limiting groove 10 restricts the ejector pin 6 to prevent it from shaking.

[0023] As another embodiment of the present invention: Figure 3 An anti-slip strip 11 is provided on the outside of the exhaust cap 8, and this structural design makes it easy to rotate the exhaust cap 8.

[0024] As another embodiment of the present invention, an impact surface 12 is provided at one end of the ejector pin 6 away from the sphere 2 , and the diameter of the impact surface 12 is larger than the diameter of the ejector pin 6 . This structural design can expand the contact area between the ejector pin 6 and the exhaust cap 8 .

[0025] As another embodiment of the present invention, a reinforcement ring 13 is fixed at the connection between the exhaust pipe 3 and the sphere 2. The reinforcement ring 13 is also provided between the sphere 2 and the air inlet pipe 4, and between the sphere 2 and the air outlet pipe 5. The diameter of the reinforcement ring 13 is smaller than the diameter of the sphere 2. This structural design can improve the structural strength of the sphere 2.

[0026] As another embodiment of the present invention, an end of the exhaust pipe 3 away from the sphere 2 is provided with a chamfered right-angle structure, which is convenient for guiding the exhaust cap 8 to be put on the exhaust pipe 3.

[0027] Specifically, the exhaust cap 8 is made of copper.

[0028] In this utility model, the diameter of the spherical cavity 1 is larger than the diameters of the inlet pipe 4, outlet pipe 5, and exhaust pipe 3. The spherical cavity 1 provides a buffer for the incoming refrigerant, facilitating subsequent safe exhaust. Furthermore, the exhaust cap 8 pushes the ejector pin 6, causing all compressed gas to be discharged along the exhaust groove 7 toward the sphere 2, avoiding contact with fingers or the body, thus improving safety.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An air conditioning fluorine exhaust valve, characterized in that: The utility model comprises a sphere with a spherical cavity, the sphere is respectively connected to an exhaust pipe, an air inlet pipe and an air outlet pipe, the diameter of the spherical cavity is respectively larger than the diameter of the exhaust pipe, the air inlet pipe and the air outlet pipe, a movable ejector is provided in the exhaust pipe, the exhaust pipe is provided with an external thread, the exhaust pipe is provided with an exhaust groove at the external thread, the exhaust groove is arranged along the length direction of the exhaust pipe, and an exhaust cap is threadedly connected to the exhaust pipe.

2. The air conditioning fluorine exhaust valve according to claim 1, characterized in that: The ejector pin extends out of the exhaust pipe.

3. The air conditioning fluorine exhaust valve according to claim 2, characterized in that: A limiting column is fixed in the exhaust cap, and the limiting column is provided with a limiting groove adapted to the ejector pin.

4. The air conditioning fluorine addition and exhaust valve according to claim 3, characterized in that: An anti-slip strip is provided on the outer side of the exhaust cap.

5. The air conditioning fluorine-adding exhaust valve according to claim 4, characterized in that: An end of the ejector pin away from the sphere is provided with an impact surface, and a diameter of the impact surface is larger than a diameter of the ejector pin.

6. The air conditioner fluorination exhaust valve according to claim 5, characterized in that: A reinforcement ring is fixed at the connection between the exhaust pipe and the sphere. The reinforcement ring is also arranged between the sphere and the air inlet pipe, and the reinforcement ring is also arranged between the sphere and the air outlet pipe. The diameter of the reinforcement ring is smaller than the diameter of the sphere.

7. The air conditioner fluorination exhaust valve according to claim 1, characterized in that: An inverted right-angle structure is provided at one end of the exhaust pipe away from the sphere.

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