A new freeze-proof valve

Abstract

The utility model discloses a novel freeze -proof valve, including three -way valve body, three -way valve body with pipeline connection, three -way valve body below is equipped with freeze -proof valve core subassembly, three -way valve body upper is equipped with prevent vacuum valve core subassembly. Freeze -proof valve core subassembly and prevent vacuum valve core subassembly assembly test can be connected with different specifications three -way body, and the commonality is strong, and the simple structure has the advantages of accurate temperature sensing, high security.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology and relates to a novel antifreeze valve. Background Technology

[0002] In winter, especially in northern regions, household and heating pipes are prone to freezing and damage. The problem is that some antifreeze valves on the market lack sensitivity, have incomplete structures, or lack functionality, leading to equipment damage and pipe cracking, resulting in resource waste. Summary of the Invention

[0003] The purpose of this invention is to provide a novel antifreeze valve that can effectively solve the defects existing in the above-mentioned background technology.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A novel antifreeze valve is characterized by comprising a three-way valve body, wherein an antifreeze valve core assembly is installed in the lower part of the three-way valve body, and an anti-vacuum valve core assembly is installed in the upper part of the three-way valve body.

[0006] The aforementioned antifreeze valve core assembly includes an antifreeze valve core body, a spring installed in the inner cavity of the antifreeze valve core body, a piston rod installed above the spring, a sealing ring one below the piston rod, a thermal element installed above the piston rod, an adjusting lock cap installed above the thermal element, and a sealing ring two installed in the threaded groove of the antifreeze valve core body, which is threadedly connected and sealed with the three-way valve body.

[0007] The aforementioned anti-vacuum valve core assembly includes an anti-vacuum valve core body, wherein a sealing ring three is installed in the external threaded groove of the anti-vacuum valve core body and is threadedly connected and sealed to the three-way valve body; a baffle is installed in the inner cavity of the anti-vacuum valve core body, wherein a rubber gasket is installed on the baffle; an anti-vacuum valve core cap is installed on the top of the anti-vacuum valve core body, wherein a sealing ring four is installed in the external threaded groove of the anti-vacuum valve core cap.

[0008] Compared with existing technologies, this utility model has the following advantages: the three-way valve body is forged, resulting in high pressure resistance, high production efficiency, and no risk of leakage. After assembly and testing, the antifreeze valve core assembly and the anti-vacuum valve core assembly can be connected to three-way valves of different specifications, offering strong versatility, a simple structure, cost savings, and the ability to meet consumer requirements. Attached Figure Description

[0009] Figure 1 This is an exploded view of a novel antifreeze valve assembly according to this utility model.

[0010] Figure 2 This is an exploded view of a novel antifreeze valve according to this utility model.

[0011] Figure 3This is a cross-sectional view of a novel antifreeze valve according to this utility model.

[0012] The attached diagram shows the following labels: 1. Three-way valve body; 2. Antifreeze valve core assembly; 3. Anti-vacuum valve core assembly; 1A. Three-way valve body with straight inlet / outlet; 2A. Antifreeze valve core assembly - drain port; 3A. Anti-vacuum valve core assembly - suction port; 21. Antifreeze valve core body; 22. Spring; 23. Sealing ring one; 24. Piston rod; 25. Thermistor element; 26. Adjusting lock cap; 27. Sealing ring two; 31. Anti-vacuum valve core body; 32. Sealing ring three; 33. Baffle; 34. Rubber gasket; 35. Sealing ring four; 36. Anti-vacuum valve core cap. Detailed Implementation

[0013] The following is a clear and complete description of the technical solutions of the present utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0014] like Figures 1-3 As shown, this utility model provides a novel antifreeze valve technical solution: characterized in that it includes a three-way valve body 1, an antifreeze valve core assembly 2 is installed in the lower part of the three-way valve body 1, and an anti-vacuum valve core assembly 3 is installed in the upper part of the three-way valve body 1.

[0015] The antifreeze valve core assembly 2 includes an antifreeze valve core body 21, a spring 22 installed in the inner cavity of the antifreeze valve core body 21, a piston rod 24 installed above the spring 22, a sealing ring 23 below the piston rod 24, a thermal element 25 installed above the piston rod 24, an adjusting lock cap 26 installed above the thermal element 25, and a sealing ring 27 installed in the external thread groove of the antifreeze valve core body 21, which is threadedly connected and sealed to the three-way valve body 1.

[0016] The vacuum valve core assembly 3 includes a vacuum valve core body 31. A sealing ring 32 is installed in the external threaded groove of the vacuum valve core body 31 and is threadedly connected and sealed to the three-way valve body 1. A baffle 33 is installed in the inner cavity of the vacuum valve core body 31. A rubber gasket 34 is installed on the baffle 33. A vacuum valve core cap 36 is installed on the top of the vacuum valve core body 31. A sealing ring 35 is installed in the external threaded groove of the vacuum valve core cap 36.

[0017] Working principle:

[0018] The three-way valve body 1 is connected to the pipeline at both ends. When the equipment is working normally, the medium flows normally through the inlet and outlet 1A of the three-way valve body. Under the action of the internal medium pressure, the baffle 33 and rubber gasket 34 inside the anti-vacuum valve core assembly 2 move upward to block the leakage of the anti-vacuum valve core assembly. When the medium temperature gradually rises, the thermal element 25 expands and moves downward after sensing the temperature. The stress on the spring 22 increases and the free length of the spring shortens. The piston rod 24 moves downward with the spring. When the sealing ring 23 enters the inner hole of the anti-freeze valve core body 21, it blocks the outlet and no medium flows out.

[0019] When the equipment is shut down, the medium stops flowing or its temperature gradually decreases due to environmental changes. The thermal element 25 contracts upon sensing the temperature, reducing the stress on the spring 22 and increasing its free length. The piston rod 24 moves upward with the spring 22. When the sealing ring 23 disengages from the inner hole of the antifreeze valve core 21, the medium in the pipeline is discharged from the antifreeze valve core assembly - drain port 2A. After the medium is discharged, the pipeline cavity is under no pressure or negative pressure. The baffle 33 and rubber gasket 34 inside the anti-vacuum valve core assembly 2 move downward, allowing air to enter from the anti-vacuum valve core assembly - intake port 3A, effectively preventing a vacuum from forming inside the pipeline and preventing the medium from being discharged.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new freeze-proof valve, characterized in that, The system includes a three-way valve body (1), with an antifreeze valve core assembly (2) installed at the lower part of the three-way valve body (1) and an anti-vacuum valve core assembly (3) installed at the upper part of the three-way valve body (1); the antifreeze valve core assembly (2) includes an antifreeze valve core body (21), with a spring (22) installed in the inner cavity of the antifreeze valve core body (21), a piston rod (24) installed above the spring (22), a sealing ring (23) below the piston rod (24), a thermal element (25) installed above the piston rod (24), and an adjusting lock cap (26) installed above the thermal element (25). 21) A sealing ring 2 (27) is installed in the external thread groove and is threadedly connected to the three-way valve body (1) for sealing; the anti-vacuum valve core assembly (3) includes an anti-vacuum valve core (31), a sealing ring 3 (32) is installed in the external thread groove of the anti-vacuum valve core (31) and is threadedly connected to the three-way valve body (1) for sealing, a baffle (33) is installed in the inner cavity of the anti-vacuum valve core (31), a rubber gasket (34) is installed on the baffle (33), an anti-vacuum valve core cap (36) is installed on the top of the anti-vacuum valve core (31), and a sealing ring 4 (35) is installed in the external thread groove of the anti-vacuum valve core cap (36).

2. The novel antifreeze valve according to claim 1, characterized in that, The adjustable lock cap (26) has a slotted notch on the top for adjustment and locking, and the adjustable lock cap (26) has an opening on the lower side to facilitate the flow of the medium.

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