Frost valve

Abstract

The utility model provides an anti-freezing valve which comprises a water passing seat, a water passing channel is arranged in the water passing seat, an anti-freezing valve body communicated with the water passing channel is arranged on the side wall of the water passing seat, a mounting seat is detachably connected in the end portion of the anti-freezing valve body in a sealing mode, a temperature control assembly is arranged in the anti-freezing valve body, and a water outlet channel communicated with an inner cavity of the anti-freezing valve body and the outside is arranged in the mounting seat. The temperature control assembly comprises a first spring piece, a temperature control rod, a second spring piece and a sealing piece, the two ends of the first spring piece are connected with the frost valve body and the temperature control rod correspondingly, and the two ends of the second spring piece are connected with the mounting base and the sealing piece correspondingly; according to the characteristics of thermal expansion and cold contraction of the temperature control rod, after the temperature control rod is cooled and axially contracted, the stress balance positions of the temperature control rod and the sealing piece move in the direction far away from the mounting seat, water stored in the water passing channel can be discharged from the water outlet channel, the situation that the pipeline is cracked due to freezing of the stored water is avoided, and actual use is very convenient.

Description

Technical Field

[0001] This utility model relates to an antifreeze valve. Background Technology

[0002] When the ambient temperature drops below zero, the large amount of water left in the drainage pipes will cool and freeze. However, since ice is less dense than water, the frozen water expands, posing a risk of cracking the drainage pipes. Currently, manual insulation wrapping is required, which is labor-intensive and inefficient. Furthermore, additional power is needed to insulate the drainage pipes, making the process time-consuming and labor-intensive. Therefore, the existing technology needs further improvement and development. Summary of the Invention

[0003] To address the shortcomings mentioned above, this utility model provides an antifreeze valve.

[0004] To achieve the above objectives, this utility model provides an antifreeze valve, including a water-passing seat, a water-passing channel inside the water-passing seat, and an antifreeze valve body on the side wall communicating with the water-passing channel. The antifreeze valve body has a detachable sealing connection to a mounting seat at its end and a temperature control component inside. The mounting seat has a water outlet channel communicating with the inner cavity of the antifreeze valve body to the outside. The temperature control component includes a first spring, a temperature control rod, a second spring, and a sealing element. The first spring is connected at both ends to the antifreeze valve body and the temperature control rod, respectively. The second spring is connected at both ends to the mounting seat and the sealing element, respectively. The sealing element is connected to the temperature control rod and is driven by the first spring to press and seal the water outlet channel. When the temperature control rod contracts axially due to cold, the force balance position of the temperature control rod and the sealing element moves away from the mounting seat, thereby connecting the inner cavity of the antifreeze valve body with the water outlet channel.

[0005] Furthermore, the temperature control rod and the sealing element are coaxially arranged, and a positioning seat is screwed onto the inner wall of the antifreeze valve body. The positioning seat has a through hole one and a through hole two. The end of the temperature control rod passes through the through hole one and connects to the sealing element.

[0006] Furthermore, the sealing element has a groove corresponding to the temperature control rod.

[0007] Furthermore, the upper end of the seal is provided with a snap-fit ​​part, and a sealing gasket is fitted on the snap-fit ​​part.

[0008] Furthermore, a water outlet connector is screwed to the end of the antifreeze valve body.

[0009] Furthermore, the side wall of the water-passing seat is provided with an exhaust valve body that communicates with the water-passing channel. The exhaust valve body is provided with an exhaust inner core and a plug cap that can be detachably connected to the end. A gasket is provided between the exhaust inner core and the plug cap in the exhaust valve body.

[0010] The advantages of this utility model compared to the prior art are as follows: This utility model has a simple and compact structure. Based on the thermal expansion and contraction characteristics of the temperature control rod, when the temperature control rod is cooled and axially contracted, the force balance position of the temperature control rod and the sealing element moves away from the mounting base. The water stored in the water passage can be discharged from the water outlet, avoiding the water from freezing and cracking the pipe. It is very convenient to use in practice. Attached Figure Description

[0011] Figure 1 This is a plan view of an antifreeze valve according to the present invention. Detailed Implementation

[0012] like Figure 1 As shown in the figure, an antifreeze valve according to an embodiment of the present invention includes a water-passing seat 1, a water-passing channel 1-1 inside the water-passing seat 1, and an antifreeze valve body 2 on the side wall. The inner cavity of the antifreeze valve body 2 communicates with the water-passing channel 1-1. An installation seat 3 is provided in the open end of the antifreeze valve body 2, and a water outlet connector 11 is screwed to the end. The installation seat 3 is detachably and sealingly connected to the inner wall of the antifreeze valve body 2, and has a water outlet channel 3-1 connecting the inner cavity of the antifreeze valve body 2 to the outside. In this application, the installation seat 3 is threadedly connected to the inner wall of the antifreeze valve body 2, and a sealing ring 17 is provided between the installation seat 3 and the antifreeze valve body 2 to ensure the sealing between the antifreeze valve body 2 and the installation seat 3, so that the medium in the water-passing channel 1-1 is discharged to the outside through the inner cavity of the antifreeze valve body 2 and the water outlet channel 3-1.

[0013] Furthermore, such as Figure 1 As shown, the antifreeze valve body 2 in this embodiment is equipped with a temperature control component 4. The temperature control component 4 includes a spring element 5, a temperature control rod 6, a spring element 7, and a sealing element 8. The two ends of the spring element 5 abut against the antifreeze valve body 2 and the temperature control rod 6, respectively. The two ends of the spring element 7 abut against the mounting base 3 and the sealing element 8, respectively. The sealing element 8 is coaxially arranged with the temperature control rod 6 and abuts against the spring element 5 and the spring element 7 under pressure. Since the elastic coefficient of the spring element 5 is greater than that of the spring element 7, the sealing element 8 is driven by the spring element 5 to press and seal the water outlet channel 3-1. When the temperature control rod 6 is cooled and axially contracted, the force balance position of the temperature control rod 6 and the sealing element 8 moves away from the mounting base 3, thereby connecting the inner cavity of the antifreeze valve body 2 with the water outlet channel 3-1, and the medium in the water passage 1-1 can be discharged from the water outlet channel 3-1.

[0014] Furthermore, such as Figure 1 As shown, in this embodiment, the sealing element 8 is provided with a groove 8-1 corresponding to the temperature control rod 6. A positioning seat 9 is screwed onto the inner wall of the antifreeze valve body 2. The positioning seat 9 is provided with a through hole 9-1 and a through hole 9-2. The end of the temperature control rod 6 passes through the through hole 9-1 and abuts against the groove 8-1 of the sealing element 8. The temperature control rod 6 can move axially in the through hole 9-1, which ensures the stability of the connection and movement of the temperature control rod 6 and the sealing element 8.

[0015] Furthermore, such as Figure 1 As shown, in this embodiment, the upper end of the sealing member 8 is provided with a snap-fit ​​part 8-2, and a sealing gasket 10 is fitted on the snap-fit ​​part 8-2. The setting of the sealing gasket 10 improves the sealing performance of the sealing member 8 when it tightly seals the water outlet channel 3-1.

[0016] Furthermore, such as Figure 1 As shown, in this embodiment, the side wall of the water-passing seat 1 is provided with an exhaust valve body 13 that communicates with the water-passing channel 1-1. The exhaust valve body 13 is provided with an exhaust inner core 14 and a plug cap 15 that can be detachably connected to the end. The exhaust valve body 13 is provided with a gasket 16 between the exhaust inner core 14 and the plug cap 15. The gas in the water-passing channel 1-1 can be discharged by opening the plug cap 15.

[0017] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A frost valve comprising a water seat (1), characterized in that: The water passing seat (1) is internally provided with a water passing channel (1-1), and a freeze-proof valve body (2) is provided on the side wall and communicates with the water passing channel (1-1), the freeze-proof valve body (2) is detachably and sealingly connected with an installation seat (3) at the end, and a temperature control assembly (4) is internally arranged, the installation seat (3) is internally provided with a water outlet channel (3-1) which communicates with the inner cavity of the freeze-proof valve body (2) and the outside, the temperature control assembly (4) comprises spring member one (5), temperature control rod (6), spring member two (7) and sealing member (8), the spring member one (5) is connected with the freeze-proof valve body (2) and the temperature control rod (6) at two ends respectively, the spring member two (7) is connected with the installation seat (3) and the sealing member (8) at two ends respectively, the sealing member (8) is connected with the temperature control rod (6) and is driven by the spring member one (5) to press and block the water outlet channel (3-1), and when the temperature control rod (6) is axially contracted by cold, the force balance position of the temperature control rod (6) and the sealing member (8) moves away from the installation seat (3), so that the inner cavity of the freeze-proof valve body (2) is communicated with the water outlet channel (3-1).

2. A freeze-proof valve according to claim 1, characterized in that: The temperature control rod (6) and the sealing member (8) are coaxially arranged, a positioning seat (9) is screwed on the inner wall of the freeze-proof valve body (2), the positioning seat (9) is internally provided with through hole one (9-1) and through hole two (9-2), and the temperature control rod (6) is connected with the sealing member (8) by penetrating through the through hole one (9-1) at the end.

3. A freeze valve according to claim 2, wherein: The sealing member (8) is provided with a clamping groove (8-1) corresponding to the temperature control rod (6).

4. A freeze valve according to any one of claims 1 to 3, wherein: A clamping part (8-2) is arranged on the upper end of the sealing member (8), and a sealing gasket (10) is sleeved on the clamping part (8-2).

5. The freeze-proof valve according to claim 1, wherein: The freeze-proof valve body (2) is screwed with a water outlet connector (11) at the end.

6. A freeze-proof valve according to claim 1, wherein: An exhaust valve body (13) is arranged on the side wall of the water passing seat (1) and communicates with the water passing channel (1-1), the exhaust valve body (13) is internally provided with an exhaust inner core (14) and is detachably connected with a plug cap (15) at the end, and a gasket (16) is arranged between the exhaust inner core (14) and the plug cap (15).

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