Anti-freezing valve

Abstract

The utility model relates to the technical field of valves, in particular to an anti-freezing valve which comprises a valve box, an expansion pipeline is arranged in the valve box, an installation block is installed in the expansion pipeline in a sliding mode, a sealing plug is fixedly connected to one side of the installation block, a second sealing ring is connected to the outer side of the sealing plug in a sleeved mode, and the second sealing ring is provided with a first sealing ring. A first sealing ring is fixedly connected to one side of the mounting block; and a rotating disc is rotationally mounted on the other side of the mounting block, an inserting groove is formed in the center of one side of the rotating disc, and one end of a connecting rod is mounted and inserted into the inserting groove. The water outlet pipe serves as a vertical maintenance channel and allows the mounting block to be directly taken out or put in from the top without disassembling the whole structure of the valve box; the rigid positioning design of the sliding groove and the sliding block is combined with rapid adsorption of the powerful magnetic adsorption block to the connecting rod, precise butt joint of the mounting block and the connecting rod is achieved, the modular design reduces the maintenance time and reduces the operation complexity, and the device is particularly suitable for frequent overhaul scenes.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to an antifreeze valve. Background Technology

[0002] In southern China, winter temperatures typically range from 0°C to -10°C. People usually install faucets outdoors in their yards for use, so outdoor faucets often freeze in winter, making them unusable the next day.

[0003] Application number CN202320502674.6 discloses an antifreeze valve. This utility model stores water from an external water pipe in a storage chamber during the valve closing process, thereby keeping the water warm. At the same time, it empties the liquid in the water pipe to prevent it from freezing and affecting the normal use of the valve the next day. Before the water in the pipe freezes, all the water flows into the storage chamber, so the external water pipe will not freeze, thus avoiding the phenomenon of water pipe breaking when hot water is poured on it.

[0004] However, this device relies on a sealing plug to seal the water passage. If the sealing plug is not processed with sufficient precision or contains impurities (such as mud and sand), it may not close tightly, and the water pressure cannot be effectively transmitted to the squeezing block, causing the water storage function to fail. Furthermore, the sealing plug is located in the expansion channel and is not easy to disassemble, making it inconvenient to replace the sealing plug and causing subsequent maintenance difficulties. Therefore, an antifreeze valve is proposed. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides an antifreeze valve.

[0006] The technical solution adopted by this utility model to solve its technical problem is an antifreeze valve, including a valve box. An expansion pipe is opened inside the valve box. The interior of the expansion pipe is used for sliding installation of an installation block. A sealing plug is fixedly connected to one side of the installation block. A second sealing ring is sleeved on the outside of the sealing plug. A first sealing ring is also fixedly connected to one side of the installation block.

[0007] The inner end of the expansion pipe is provided with a sealing groove for the insertion of the first sealing ring. A turntable is rotatably mounted on the other side of the mounting block. A bearing is sleeved on the outer side of the turntable. The outer ring of the bearing is fixedly installed inside the mounting block. A slot is provided at the center of one side of the turntable for the insertion of one end of the connecting rod.

[0008] By adopting the above technical solution, the water outlet pipe serves as a vertical maintenance channel, allowing the installation block to be directly removed or inserted from the top without disassembling the entire valve box structure. The rigid positioning design of the slide groove and slider, combined with the strong magnetic block for quick adsorption of the connecting rod, enables precise docking between the installation block and the connecting rod. This modular design not only reduces maintenance time but also lowers operational complexity, making it particularly suitable for frequent maintenance scenarios.

[0009] The first sealing ring is embedded in the sealing groove to form a static sealing surface. The second sealing ring moves with the sealing plug to tightly fit and expand the inner wall of the pipe, blocking liquid leakage. When the sealing plug is pushed to the water inlet, the double sealing structure completely cuts off the water flow path, thereby strengthening the sealing effect of the sealing plug.

[0010] Specifically, a strong magnetic block is fixedly provided on the inner ring of the slot, and the strong magnetic block is magnetically connected to the connecting rod.

[0011] By adopting the above technical solution, the powerful magnetic block is embedded in the slot. When one end of the connecting rod is inserted into the slot, the magnetic force quickly attracts the connecting rod to form a stable connection. This design simplifies the docking process between the mounting block and the connecting rod.

[0012] Specifically, the valve box is provided with a water outlet pipe at the top, and the water outlet pipe is connected to the interior of the expansion pipe.

[0013] By adopting the above technical solution, the water outlet pipe serves as a maintenance channel, directly connecting to the top of the expansion pipe. When it is necessary to disassemble the installation block, the installation block can be vertically removed or inserted from the water outlet pipe by removing the faucet on the water outlet pipe, which greatly simplifies the maintenance operation and eliminates the need to disassemble the entire valve box.

[0014] Specifically, the valve box has a water passage inside, which is connected to the interior of the expansion pipe. A water inlet pipe is provided on one side of the valve box, and the interior of the water inlet pipe is connected to the interior of the water passage.

[0015] By adopting the above technical solution, the water passage connects the inlet pipe and the expansion pipe to form a water flow path. When the sealing plug is pushed to the inlet of the water passage by the mounting block, the sealing plug and the first sealing ring work together to close the water passage and block the water flow; when it moves in the opposite direction, it opens the passage to achieve flow control.

[0016] Specifically, one end of the connecting rod is fixedly connected to one end of the threaded rod, the threaded rod is internally threaded to one side of the valve box, and the end of the threaded rod away from the connecting rod is fixedly connected to the center of one side of the handle.

[0017] By adopting the above technical solution, the rotating handle drives the threaded rod to rotate forward and backward along the thread on the side wall of the valve box, and then pushes the mounting block to move linearly through the connecting rod. The threaded drive provides precise displacement control, allowing the sealing plug to be finely adjusted to the optimal sealing position. At the same time, the self-locking characteristic of the thread ensures a stable sealing state.

[0018] Specifically, the bottom of the expansion pipe is provided with a sliding groove, and the bottom end of the mounting block is fixedly connected to a slider. The sliding groove is used for the slider to slide and install.

[0019] By adopting the above technical solution, the slider inserted into the groove can achieve the positioning effect for the installation of the mounting block, making it convenient for the connecting rod to quickly connect with the slot.

[0020] The beneficial effects of this utility model are:

[0021] (1) The antifreeze valve described in this utility model has an outlet pipe as a vertical maintenance channel, which allows the installation block to be directly removed or inserted from the top without disassembling the overall structure of the valve box; the rigid positioning design of the slide groove and the slider, combined with the strong magnetic block to quickly attract the connecting rod, realizes the precise docking of the installation block and the connecting rod. This modular design not only reduces maintenance time, but also reduces the complexity of operation, and is particularly suitable for frequent maintenance scenarios.

[0022] (2) In the antifreeze valve described in this utility model, the first sealing ring is embedded in the sealing groove to form a static sealing surface, and the second sealing ring moves with the sealing plug to closely fit and expand the inner wall of the pipe, blocking liquid leakage; when the sealing plug is pushed to the water inlet, the double sealing structure completely cuts off the water flow path, thereby strengthening the sealing effect of the sealing plug. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the expanded pipeline structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the mounting block structure of this utility model;

[0027] In the diagram: 1. Threaded rod; 2. Outlet pipe; 3. Connecting rod; 4. Mounting block; 5. First sealing ring; 6. Second sealing ring; 7. Sealing plug; 8. Valve box; 9. Inlet pipe; 10. Handle; 11. Slide groove; 12. Slider; 13. Expansion pipe; 14. Sealing groove; 15. Water passage; 16. Bearing; 17. Turntable; 18. Strong magnetic block; 19. Slot. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] As one embodiment of this utility model, such as Figures 1-3 As shown, the present invention provides an antifreeze valve, including a valve box 8, an expansion pipe 13 is provided inside the valve box 8, the interior of the expansion pipe 13 is used for sliding installation of the mounting block 4, a sealing plug 7 is fixedly connected to one side of the mounting block 4, a second sealing ring 6 is sleeved on the outside of the sealing plug 7, and a first sealing ring 5 is also fixedly connected to one side of the mounting block 4.

[0030] The inner end of the expansion pipe 13 is provided with a sealing groove 14, which is used for the first sealing ring 5 to be installed and inserted. A turntable 17 is rotatably installed on the other side of the mounting block 4. A bearing 16 is sleeved on the outer side of the turntable 17. The outer ring of the bearing 16 is fixedly installed inside the mounting block 4. A slot 19 is provided at the center of one side of the turntable 17, which is used for the installation and insertion of one end of the connecting rod 3.

[0031] In use, the expansion pipe 13 provides a guide channel for the sliding installation of the mounting block 4. When the sealing plug 7 needs to be adjusted, the mounting block 4 slides along the inner wall of the expansion pipe 13, causing the sealing plug 7 to move. The first sealing ring 5 and the second sealing ring 6 achieve a double sealing effect by embedding in the sealing groove 14 and tightly fitting the inner wall of the expansion pipe 13. The cooperation between the turntable 17 and the bearing 16 ensures that when the connecting rod 3 is rotated by the threaded rod 1, it can also drive the turntable 17 to rotate, which can prevent the mounting block 4 from being rotated.

[0032] It should be noted that the sealing groove 14 is an annular groove that is compatible with the first sealing ring 5, and the inner diameter of the expansion pipe 13 is larger than the diameter of the mounting block 4 to facilitate the flow of water within the expansion pipe 13.

[0033] The present invention also includes a strong magnetic block 18 fixedly provided on the inner ring of the slot 19, and the strong magnetic block 18 is magnetically connected to the connecting rod 3.

[0034] When in use, the strong magnetic block 18 is embedded in the slot 19. When one end of the connecting rod 3 is inserted into the slot 19, the magnetic force quickly attracts the connecting rod 3, forming a stable connection. This design simplifies the docking process between the mounting block 4 and the connecting rod 3.

[0035] It should be noted that the attraction of the strong magnetic block 18 to the connecting rod 3, combined with the pressure of the water flow on the sealing plug 7, is sufficient to pull the sealing plug 7 out of the water pipe 15.

[0036] The present invention also includes a water outlet pipe 2 provided at the top of the valve box 8, and the water outlet pipe 2 is connected to the interior of the expansion pipe 13.

[0037] In use, the water outlet pipe 2 serves as a maintenance channel, directly connecting to the top of the expansion pipe 13. When it is necessary to disassemble the mounting block 4, the mounting block 4 can be vertically removed or inserted from the water outlet pipe 2 by removing the faucet on the water outlet pipe 2, which greatly simplifies the maintenance operation and eliminates the need to disassemble the entire valve box 8.

[0038] It should be noted that the faucet pipe is installed on the outside of the water outlet pipe 2, so that the water in the water outlet pipe 2 can be supplied to the faucet. The inner diameter of the water outlet pipe 2 should be larger than the diameter of the mounting block 4 to facilitate the removal or insertion of the mounting block 4 from the water outlet pipe 2.

[0039] The present invention also includes a water passage 15 inside the valve box 8, the water passage 15 being connected to the interior of the expansion pipe 13, and a water inlet pipe 9 on one side of the valve box 8, the interior of the water inlet pipe 9 being connected to the interior of the water passage 15.

[0040] In use, the water passage 15 connects the inlet pipe 9 and the expansion pipe 13 to form a water flow path. When the sealing plug 7 is pushed to the inlet of the water passage 15 by the mounting block 4, the sealing plug 7 and the first sealing ring 5 work together to close the water passage 15 and block the water flow; when it moves in the opposite direction, it opens the channel to achieve flow control.

[0041] The present invention further includes that one end of the connecting rod 3 is fixedly connected to one end of the threaded rod 1, the threaded rod 1 is internally threaded to one side of the valve box 8, and the end of the threaded rod 1 away from the connecting rod 3 is fixedly connected to the center of one side of the handle 10.

[0042] In use, rotating the handle 10 drives the threaded rod 1 to rotate forward and backward along the thread on the side wall of the valve box 8, which in turn pushes the mounting block 4 to move linearly through the connecting rod 3. The threaded drive provides precise displacement control, allowing the sealing plug 7 to be finely adjusted to the optimal sealing position. At the same time, the thread self-locking characteristic ensures a stable sealing state.

[0043] The present invention also includes a groove 11 at the bottom of the expansion pipe 13, and a slider 12 fixedly connected to the bottom end of the mounting block 4. The groove 11 is used for sliding installation of the slider 12.

[0044] In use, the slider 12 and the slot 11 can position the installation block 4, making it easy for the connecting rod 3 to quickly connect with the slot 19.

[0045] When using this invention, if the sealing plug 7 needs to be replaced or maintained, first remove the faucet installed on the top of the valve box 8 to expose the top of the water outlet pipe 2. Then, turn the handle 10 to unscrew the threaded rod 1, which will move the mounting block 4 directly below the water outlet pipe 2. This allows the worker to remove the mounting block 4 from the water outlet pipe 2. After the mounting block 4 is cleaned and maintained, or a new mounting block 4 is placed into the expansion pipe 13 from the water outlet pipe 2, the slider 12 is inserted into the slide groove 11 to position the mounting block 4. Then, by turning the threaded rod 1, the connecting rod 3 is moved closer to the mounting block. Use a tool to hold the mounting block 4 in place to prevent the movement of the connecting rod 3 from causing the mounting block 4 to move, until one end of the connecting rod 3 is inserted into the slot 19 and attracted by the strong magnetic block 18. In this way, the mounting block 4 is fixedly connected to the connecting rod 3. By turning the threaded rod 1, the connecting rod 3 can be driven to make a linear movement. The linear movement of the connecting rod 3 can push the mounting block 4 to make a linear movement in the expansion pipe 13. The mounting block 4 will gradually approach the water passage 15 until the sealing plug 7 is inserted into the water passage 15. At the same time, the first sealing ring 5 will be inserted into the sealing groove 14 to achieve a stronger sealing effect on the water passage 15.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An antifreeze valve, comprising a valve box (8), characterized in that, The valve box (8) has an expansion pipe (13) inside. The expansion pipe (13) is used for the sliding installation of the mounting block (4). A sealing plug (7) is fixedly connected to one side of the mounting block (4). A second sealing ring (6) is sleeved on the outside of the sealing plug (7). A first sealing ring (5) is also fixedly connected to one side of the mounting block (4). The inner end of the expansion pipe (13) is provided with a sealing groove (14), which is used for the first sealing ring (5) to be installed and inserted. A turntable (17) is rotatably installed on the other side of the mounting block (4). A bearing (16) is sleeved on the outer side of the turntable (17). The outer ring of the bearing (16) is fixedly installed inside the mounting block (4). A slot (19) is provided at the center of one side of the turntable (17), which is used for the installation and insertion of one end of the connecting rod (3).

2. A freeze-proof valve according to claim 1, wherein The inner ring of the slot (19) is fixed with a strong magnetic block (18), which is magnetically connected to the connecting rod (3).

3. The freeze-proof valve according to claim 1, wherein The valve box (8) is provided with a water outlet pipe (2) at the top, and the water outlet pipe (2) is connected to the interior of the expansion pipe (13).

4. The freeze-proof valve according to claim 1, wherein The valve box (8) has a water passage (15) inside, which is connected to the interior of the expansion pipe (13). A water inlet pipe (9) is provided on one side of the valve box (8), and the interior of the water inlet pipe (9) is connected to the interior of the water passage (15).

5. The freeze-proof valve according to claim 1, wherein One end of the connecting rod (3) is fixedly connected to one end of the threaded rod (1), the threaded rod (1) is internally threaded to one side of the valve box (8), and the end of the threaded rod (1) away from the connecting rod (3) is fixedly connected to the center of one side of the handle (10).

6. The freeze-proof valve according to claim 1, wherein The bottom of the expansion pipe (13) is provided with a sliding groove (11), and the bottom end of the mounting block (4) is fixedly connected with a slider (12). The sliding groove (11) is used for sliding installation of the slider (12).

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