New energy automobile air conditioner liquid adding valve

Abstract

The utility model discloses a new energy automobile air conditioner liquid adding valve, which belongs to the technical field of valves, and adopts the technical scheme that the new energy automobile air conditioner liquid adding valve comprises a valve body, a valve rod, a joint I, a joint II, a loose joint cap and a hand wheel, the valve rod is movably arranged in the valve body, the end part of the valve rod extends out of the valve body and is connected with the hand wheel, and the joint I is in threaded connection in the valve body; the second connector is arranged in the loose joint cap in a penetrating mode, the end of the second connector is in threaded connection with the interior of the first connector, the second connector axially limits the loose joint cap, a liquid flowing channel is formed in the valve body, a sealing section is arranged on the valve rod, and when the valve rod is rotated through a hand wheel, the sealing section can control opening and closing of the liquid flowing channel. And production and assembly are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a liquid filling valve for an air conditioner of a new energy vehicle. Background Art

[0002] The air conditioning filling valve is a key component used in the process of adding refrigerant to the air conditioner. It is mainly used to control the flow and filling of refrigerant or coolant, and is used to connect the refrigerant bottle or other filling equipment to add refrigerant or coolant to the refrigeration system.

[0003] A Chinese patent with announcement number CN215214756U discloses a liquid filling valve for refrigeration equipment, including a valve body, a valve stem arranged in the valve body, a ejector pin at one end of the valve stem, and a hand wheel connected to the other end. The valve body is a tubular structure with steps, which are respectively a first pipe section and a second pipe section, and a three-way joint is sleeved on the outer periphery of the first pipe section; a valve core component with an expanded diameter is arranged on the rod body between the valve stem and the ejector pin; a pressure cap is threadedly connected to the end of the valve body near the hand wheel, and a plane thrust ball bearing sleeved on the outer periphery of the valve stem is arranged between the pressure cap and the hand wheel; an air inlet hole connected to the three-way joint is arranged on the first pipe section.

[0004] The above technical solution has the following defects: the valve body of the liquid filling valve is connected to a pressure cap through a thread at one end close to the handwheel, and a planar thrust ball bearing sleeved on the outer circumference of the valve stem is provided between the pressure cap and the handwheel. The structure is relatively complex and is not conducive to production and assembly. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to propose a new energy vehicle air conditioning filling valve. The technical problem to be solved by the utility model is: how to simplify the structure of the filling valve.

[0006] The above-mentioned technical purpose of the utility model can be achieved through the following technical solutions: a new energy vehicle air conditioning filling valve, including a valve body, a valve stem, a joint 1, a joint 2, a union cap and a handwheel, the valve stem is movably arranged in the valve body, and the end of the valve stem extends out of the valve body and is connected to the handwheel, the joint 1 is threadedly connected to the valve body, the joint 2 is penetrated by the union cap, the end of the joint 2 is threadedly connected to the joint 1, and the joint 2 limits the axial position of the union cap, a liquid flow channel is arranged in the valve body, and a sealing section is arranged on the valve stem. When the valve stem is rotated by the handwheel, the sealing section can control the opening and closing of the liquid flow channel.

[0007] In the above-mentioned new energy automobile air conditioning filling valve, the outer wall of the joint 2 is provided with a positioning step 1, and the inner wall of the union cap is provided with a positioning step 2, and the step surface of the positioning step 1 abuts against the step surface of the positioning step 2.

[0008] In the above-mentioned new energy automobile air conditioning filling valve, a flow hole is arranged in the valve body, the flow hole connects the inlet of the liquid flow channel with the outlet of the liquid flow channel, a sealing gasket is arranged in the valve body, and the sealing section can cooperate with the sealing gasket to seal the flow hole.

[0009] In the above-mentioned new energy automobile air conditioning filling valve, the valve stem is threadedly connected to the valve body, and when the valve stem is rotated to move along its own axial direction, the sealing section can approach or move away from the flow hole.

[0010] In the above-mentioned new energy automobile air-conditioning filling valve, a sealing ring 1 is arranged between the valve stem and the valve body.

[0011] In the above-mentioned new energy automobile air conditioning filling valve, a connecting hole is opened on the hand wheel, the valve stem is plugged into the connecting hole, and the connecting hole positions the valve stem circumferentially.

[0012] In the above-mentioned new energy automobile air conditioning filling valve, a limiting flange is provided at the end of the first connector, and the upper end surface of the limiting flange abuts against the lower end surface of the valve body.

[0013] In the above-mentioned new energy automobile air conditioning filling valve, the inner side wall of the union cap is provided with an internal thread, and a strip groove is opened on the internal thread.

[0014] In the above-mentioned new energy automobile air-conditioning filling valve, a sealing ring 2 is arranged in the second joint.

[0015] In the above-mentioned new energy automobile air conditioning filling valve, a limiting step for limiting the position of the sealing ring 2 is arranged in the second joint, and the end face of the second sealing ring abuts against the step surface of the limiting step.

[0016] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0017] 1. The filling valve includes a valve body, a valve stem, a joint 1, a joint 2, a union cap and a handwheel. It has a small number of parts and a simple structure. When assembling, you only need to insert the valve stem into the valve body and thread it with the valve body, then thread the joint 1 into the valve body, and then insert the joint 2 into the union cap and thread it into the joint 1. Finally, connect the valve stem to the union cap to complete the assembly of the filling valve. The assembly process is simple and is conducive to production assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of an embodiment;

[0019] Figure 2 for Figure 1 Enlarged view of part A.

[0020] Figure numerals: 1. valve body; 2. valve stem; 3. joint 1; 4. joint 2; 5. union cap; 6. hand wheel; 7. liquid flow channel; 8. sealing section; 9. positioning step 1; 10. positioning step 2; 11. flow hole; 12. sealing gasket; 13. sealing ring 1; 14. sealing ring 2; 15. connecting hole; 16. limiting flange; 17. strip groove; 18. limiting step. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] A new energy vehicle air conditioning filling valve, such as Figure 1 to Figure 2 As shown, it includes a valve body 1, a valve stem 2, a connector 1 3, a connector 2 4, a union cap 5 and a hand wheel 6.

[0023] The valve stem 2 is movably arranged in the valve body 1. Specifically, the valve stem 2 is threadedly connected to the valve body 1. When the valve stem 2 is rotated, the valve stem 2 can move along its own axial direction.

[0024] The end of the valve stem 2 extends out of the valve body 1 and is connected to the handwheel 6. Specifically, a connecting hole 15 is provided on the handwheel 6, and the valve stem 2 is plugged in and out of the connecting hole 15. The connecting hole 15 is compatible with the handwheel 6, and the connecting hole 15 circumferentially positions the valve stem 2. Therefore, the valve stem 2 can be driven to rotate by rotating the handwheel 6. During assembly, it is only necessary to insert the end of the valve stem 2 into the connecting hole 15 by external force. The operation is simple and the assembly is convenient.

[0025] The connector 3 is threadedly connected in the valve body 1. Specifically, the outer wall of the connector 3 has an external thread, and the inner wall of the valve body 1 is provided with a corresponding internal thread.

[0026] A limiting flange 16 is provided at the end of the connector 3, and the upper end surface of the limiting flange 16 abuts against the lower end surface of the valve body 1, thereby ensuring that the relative position relationship between the connector 3 and the valve body 1 is stable, improving the stability of the structure, and also facilitating the assembly of the connector 3 and the valve body 1.

[0027] The joint 2 4 is passed through the union cap 5, and the end of the joint 2 4 is threadedly connected to the joint 1 3, and the joint 2 4 limits the axial position of the union cap 5. Specifically, the outer wall of the joint 2 4 is provided with a positioning step 1 9, and the inner wall of the union cap 5 is provided with a positioning step 2 10. The step surface of the positioning step 1 9 abuts against the step surface of the positioning step 2 10, so as to limit the position of the union cap 5. Therefore, when the joint 2 4 is passed through the union cap 5 and is threadedly connected to the joint 1 3, the union cap 5 cannot be detached from the joint 2 4, and the union cap 5 can be rotated on the joint 2 4, so as to be conveniently connected to the refrigeration equipment through the union cap 5.

[0028] Specifically, the inner wall of the union cap 5 is provided with an internal thread, that is, the union cap 5 is connected to the refrigeration equipment by a threaded connection, and a strip groove 17 is provided on the internal thread. Therefore, when subjected to tension, the strip groove 17 can serve as a stress concentration point to make the force distribution more uniform and prevent breakage caused by excessive local stress, thereby enhancing the tensile strength of the internal thread and improving the service life of the union cap 5.

[0029] A liquid flow channel 7 is provided in the valve body 1, and a sealing section 8 is provided on the valve stem 2. When the valve stem 2 is rotated by the hand wheel 6, the sealing section 8 can control the opening and closing of the liquid flow channel 7. Specifically, a flow hole 11 is provided in the valve body 1, and the flow hole 11 connects the inlet of the liquid flow channel 7 with the outlet of the liquid flow channel 7. A sealing gasket 12 is provided in the valve body 1, and the sealing section 8 can cooperate with the sealing gasket 12 to seal the flow hole 11.

[0030] When the valve stem 2 is rotated to move along its own axial direction, the sealing section 8 can approach or move away from the circulation hole 11. It should be noted that as the sealing section 8 approaches the circulation hole 11, until the sealing section 8 is pressed against the sealing gasket 12, the sealing section 8 cooperates with the sealing gasket 12 to seal the circulation hole 11, and the liquid flow channel 7 is in a blocked state. As the sealing section 8 moves away from the circulation hole 11, the circulation hole 11 is opened, and the liquid flow channel 7 is in a connected state.

[0031] A sealing ring 13 is arranged between the valve stem 2 and the valve body 1. Specifically, the inner wall of the valve body 1 is provided with a receiving groove for accommodating the sealing ring 13. The sealing ring 13 is installed in the receiving groove. The valve stem 2 and the valve body 1 are sealed by the sealing ring 13 to ensure the sealing between the two.

[0032] A sealing ring 14 is arranged inside the joint 4, and the sealing ring 14 can effectively improve the sealing performance at the joint 4 to avoid leakage.

[0033] A limiting step 18 for limiting the position of the sealing ring 14 is provided in the joint 4, and the end face of the sealing ring 14 abuts against the step surface of the limiting step 18, thereby ensuring the relative position relationship between the sealing ring 14 and the joint 4 is stable, and ensuring the stability of the sealing ring 14.

[0034] The assembly principle of the filling valve is as follows:

[0035] First, insert the upper end of the valve stem 2 from the lower end of the valve body 1, and complete the threaded connection between the valve stem 2 and the valve body 1, then thread the connector 3 into the valve body 1, then pass the connector 2 4 through the union cap 5, and thread the end of the connector 2 4 into the connector 1 3, and finally insert the upper end of the valve stem 2 into the connecting hole 15 to complete the assembly of the filling valve.

[0036] The specific embodiments described in this article are merely examples of the spirit of the utility model; technicians in the technical field to which the utility model belongs can make various modifications or additions to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A new energy vehicle air conditioning filling valve, characterized in that: The invention comprises a valve body (1), a valve stem (2), a joint 1 (3), a joint 2 (4), a union cap (5) and a hand wheel (6); the valve stem (2) is movably arranged in the valve body (1), and the end of the valve stem (2) extends out of the valve body (1) and is connected to the hand wheel (6); the joint 1 (3) is threadedly connected in the valve body (1); the joint 2 (4) is passed through the union cap (5), the end of the joint 2 (4) is threadedly connected in the joint 1 (3), and the joint 2 (4) limits the axial position of the union cap (5); a liquid passage (7) is arranged in the valve body (1), and a sealing section (8) is arranged on the valve stem (2); when the valve stem (2) is rotated by the hand wheel (6), the sealing section (8) can control the opening and closing of the liquid passage (7).

2. A new energy automobile air conditioning filling valve according to claim 1, characterized in that: The outer side wall of the joint 2 (4) is provided with a positioning step 1 (9), and the inner side wall of the joint cap (5) is provided with a positioning step 2 (10), and the step surface of the positioning step 1 (9) abuts against the step surface of the positioning step 2 (10).

3. A new energy automobile air conditioning filling valve according to claim 1, characterized in that: The valve body (1) is provided with a flow hole (11), the flow hole (11) connecting the inlet of the liquid flow channel (7) with the outlet of the liquid flow channel (7), the valve body (1) is provided with a sealing gasket (12), and the sealing section (8) can cooperate with the sealing gasket (12) to seal the flow hole (11).

4. A new energy automobile air conditioning filling valve according to claim 3, characterized in that: The valve stem (2) is threadedly connected to the valve body (1); when the valve stem (2) is rotated to move along its own axial direction, the sealing section (8) can move closer to or farther from the flow hole (11).

5. The new energy automobile air conditioning filling valve according to claim 1 is characterized in that: A sealing ring (13) is provided between the valve stem (2) and the valve body (1).

6. The new energy automobile air conditioning filling valve according to claim 1 is characterized in that: The hand wheel (6) is provided with a connection hole (15), the valve stem (2) is inserted and removed from the connection hole (15), and the connection hole (15) positions the valve stem (2) in the circumferential direction.

7. The new energy automobile air conditioning filling valve according to claim 1 is characterized in that: A limiting flange (16) is provided at the end of the connector 1 (3), and the upper end surface of the limiting flange (16) abuts against the lower end surface of the valve body (1).

8. The new energy automobile air conditioning filling valve according to claim 1 is characterized in that: The inner side wall of the movable cap (5) is provided with an internal thread, and a strip groove (17) is formed on the internal thread.

9. The new energy automobile air conditioning filling valve according to claim 1, characterized in that: A sealing ring 2 (14) is arranged inside the joint 2 (4).

10. A new energy automobile air conditioning filling valve according to claim 9, characterized in that: The second joint (4) is provided with a limiting step (18) for limiting the position of the second sealing ring (14), and the end surface of the second sealing ring (14) abuts against the step surface of the limiting step (18).

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