Warm water valve

Abstract

The utility model discloses a hot water valve, including the valve body, the first water inlet and the first water outlet with each other of valve body upper end have intercommunication, the second water inlet and the second water outlet with each other of valve body lower extreme have intercommunication, the top of valve body is fixed with the top cover, the sleeve of fixed in the valve body, the sleeve content is located and extends the valve rod of up and down, the outer fixed of valve rod is with the sleeve of up and down and extends, the lower extreme of sleeve is fixed with a base, the outer wall on the lower extreme of sleeve is convex and has a lug, the top of lug and the bottom between top cover installs the memory spring of up and down and extends, the bottom of lug and the top between base installs the reset spring of up and down and extends, the lower extreme of valve rod is fixed with the sealing assembly of being located the second water outlet above and being used for opening or closing the second water outlet. The utility model discloses simple structure can realize the on-off of the second water outlet through the memory spring.

Description

Technical Field

[0001] This utility model relates to a heating water valve. Background Technology

[0002] In existing technologies, heating water valves are typically designed with two inlets and two outlets. This design aims to meet the needs of water flow control under different temperature conditions. Specifically, one inlet and one outlet form a pair, which remains open in most cases to ensure continuous liquid flow and temperature stability. The other pair of inlets and outlets is used to cut off the water flow when the liquid temperature is too high, thereby controlling the temperature.

[0003] Currently, the common method for controlling water outlets that need to be closed is to use solenoid valves. Solenoid valves use electromagnetic force to control the opening and closing of the valve, offering advantages such as fast response and precise control. However, this design also has some drawbacks: First, the structure of a solenoid valve is relatively complex, including multiple components such as an electromagnetic coil, valve body, and valve core, leading to a more complex product structure. Second, solenoid valves consume electrical energy during operation, which increases energy consumption to some extent.

[0004] Given the aforementioned problems with existing heating water valves, it is necessary to develop a heating water valve with a simpler structure. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a hot water valve.

[0006] The technical solution of this utility model is: a hot water valve, including a valve body, the upper end of the valve body having a first inlet and a first outlet that are interconnected, the lower end of the valve body having a second inlet and a second outlet that are interconnected, a top cover fixed to the top of the valve body, a sleeve fixed inside the valve body, a valve stem extending vertically inside the sleeve, a rod sleeve extending vertically fixed outside the valve stem, a base fixed to the lower end of the sleeve, a protruding ring protruding on the outer wall of the lower end of the rod sleeve, a memory spring extending vertically between the top of the protruding ring and the bottom of the top cover, a reset spring extending vertically between the bottom of the protruding ring and the top of the base, and a sealing component located above the second outlet and used to open or close the second outlet fixed to the lower end of the valve stem.

[0007] Furthermore, both the memory spring and the return spring are fitted onto the outside of the rod sleeve.

[0008] Furthermore, the lower end of the valve stem passes through the base and then protrudes from the lower end of the sleeve. The sealing assembly includes a plug fixed to the lower end of the valve stem and a first sealing gasket, with the first sealing gasket resting against the top of the plug.

[0009] Furthermore, the lower end of the sleeve has a through hole that extends vertically and allows the valve stem to pass through. When the second outlet is in the open state, the first sealing gasket blocks the opening at the lower end of the through hole.

[0010] Furthermore, the lower outer side of the plug has a bevel, and the upper end of the second outlet has a through groove. When the second outlet is closed, the lower end of the plug extends into the through groove, and the bevel contacts the inner wall of the through groove, so that the plug blocks the second outlet.

[0011] Furthermore, the sealing assembly also includes a second sealing gasket, which is installed between the bottom of the plug and the outer wall of the valve stem.

[0012] Furthermore, the memory spring is a nickel-titanium alloy spring.

[0013] The beneficial effects of the hot water valve provided by this utility model are as follows: When the water temperature is too high, exceeding 60 degrees Celsius, the memory spring will extend, increasing its elasticity. The return spring will be compressed, and the memory spring will drive the sleeve and valve stem to move downwards together, causing the plug to move downwards. The plug will block the second outlet, preventing water from the second inlet from flowing out of the second outlet, thus completing the cutoff. When the water temperature decreases, the elasticity of the memory spring decreases, and the return spring will drive the sleeve and valve stem to move upwards to reset. Compared with the traditional control method using a solenoid valve, this reduces complex components such as solenoid coils, simplifies the product structure, and eliminates the need for power consumption. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0017] Figure 4 This is a schematic diagram showing the state when the plug of this utility model blocks the second water outlet.

[0018] As shown in the figure: 1—valve body, 11—first inlet, 12—first outlet, 13—second inlet, 14—second outlet, 141—through groove, 2—top cover, 3—sleeve, 31—through hole, 4—valve stem, 5—stem sleeve, 51—convex ring, 6—base, 7—memory spring, 8—reset spring, 9—sealing assembly, 91—plug, 911—sloping surface, 92—first sealing gasket, 93—second sealing gasket. Detailed Implementation

[0019] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0020] like Figure 1 — Figure 4 As shown, the hot water valve includes a valve body 1. The upper end of the valve body 1 has a first inlet 11 and a first outlet 12 that are interconnected. The lower end of the valve body 1 has a second inlet 13 and a second outlet 14 that are interconnected. A top cover 2 is fixed to the top of the valve body 1. A sleeve 3 is fixed inside the valve body 1. A vertically extending valve stem 4 is placed inside the sleeve 3. A vertically extending rod sleeve 5 is fixed outside the valve stem 4. A base 6 is fixed to the lower end of the sleeve 3. A protruding ring 51 is provided on the outer wall of the lower end of the rod sleeve 5. A vertically extending memory spring 7 is installed between the top of the protruding ring 51 and the bottom of the top cover 2. A vertically extending return spring 8 is installed between the bottom of the protruding ring 51 and the top of the base 6. A sealing assembly 9, located above the second outlet 14 and used to open or close the second outlet 14, is fixed to the lower end of the valve stem 4. Both the memory spring 7 and the return spring 8 are sleeved on the outside of the rod sleeve 5.

[0021] like Figure 3 As shown, the lower end of the valve stem 4 passes through the base 6 and then exits from the lower end of the sleeve 3 (the base 6 has a hole in the middle for the valve stem 4 to pass through). The sealing assembly 9 includes a plug 92 fixed to the lower end of the valve stem 4 and a first sealing gasket 92, with the first sealing gasket 92 resting against the top of the plug 92. The lower end of the sleeve 3 has a through hole 31 that extends vertically and allows the valve stem 4 to pass through. When the second outlet 14 is in the open state, the first sealing gasket 92 blocks the lower opening of the through hole 31. Because the first sealing gasket 92 blocks the through hole 31, the water flowing in from the first inlet 11 will not flow from the through hole 31 to the second outlet 14.

[0022] like Figure 4 As shown, the plug 92 is made of soft material, and its lower outer end has a bevel 911. The upper end of the second outlet 14 has a through groove 141. When the second outlet 14 is closed, the lower end of the plug 92 extends into the through groove 141, and the bevel 911 contacts the inner wall of the through groove 141, thus blocking the second outlet 14. The sealing assembly 9 also includes a second sealing gasket 93, which is installed between the bottom of the plug 92 and the outer wall of the valve stem 4. The second sealing gasket 93 is provided to prevent water from flowing into the second outlet 14 through the gap between the valve stem 4 and the plug 92.

[0023] The memory spring 7 is a nickel-titanium alloy spring. The memory temperature of the nickel-titanium alloy spring is not a fixed value, but can be adjusted by changing the formula ratio of the alloy components. For example, in this invention, the memory temperature is adjusted to 60 degrees Celsius.

[0024] When the memory spring 7 of this invention is in a low temperature state, its elastic force is less than that of the return spring 8, so the memory spring 7 is compressed. Therefore, when the water temperature exceeds 60 degrees, the memory spring 7 will stretch back to its original length.

[0025] The hot water valve provided by this utility model, when the water temperature is too high, exceeding 60 degrees Celsius, the memory spring 7 will extend, the elastic force of the memory spring 7 will increase, the return spring 8 will be compressed, the memory spring 7 will drive the sleeve rod and valve stem 4 to move downward together, causing the plug 92 to move downward, the plug 92 will block the second outlet 14, and the water in the second inlet 13 will not flow out of the second outlet 14, thus completing the cut-off. When the water temperature drops, the elastic force of the memory spring 7 will decrease, and the return spring 8 will drive the sleeve 5 and valve stem 4 to move upward to reset. Compared with the traditional control method using a solenoid valve, it reduces complex components such as solenoid coils, simplifies the product structure, and does not consume electrical energy.

[0026] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. A hot water valve, comprising a valve body, wherein the upper end of the valve body has a first inlet and a first outlet communicating with each other, the lower end of the valve body has a second inlet and a second outlet communicating with each other, and a top cover is fixed to the top of the valve body, characterized in that: A sleeve is fixed inside the valve body. A valve stem extending vertically is placed inside the sleeve. A rod sleeve extending vertically is fixed outside the valve stem. A base is fixed at the lower end of the sleeve. A protruding ring is provided on the outer wall of the lower end of the rod sleeve. A memory spring extending vertically is installed between the top of the protruding ring and the bottom of the top cover. A reset spring extending vertically is installed between the bottom of the protruding ring and the top of the base. A sealing component located above the second outlet and used to open or close the second outlet is fixed at the lower end of the valve stem.

2. The hot water valve according to claim 1, characterized in that: Both the memory spring and the return spring are sleeved on the outside of the rod sleeve.

3. The hot water valve according to claim 1, characterized in that: The lower end of the valve stem passes through the base and then protrudes from the lower end of the sleeve. The sealing assembly includes a plug fixed to the lower end of the valve stem and a first sealing gasket, with the first sealing gasket resting against the top of the plug.

4. The hot water valve according to claim 3, characterized in that: The lower end of the sleeve has a through hole that runs vertically through the valve stem. When the second outlet is open, the first sealing gasket blocks the opening at the lower end of the through hole.

5. The hot water valve according to claim 3, characterized in that: The lower end of the plug has a beveled surface, and the upper end of the second outlet has a through groove. When the second outlet is closed, the lower end of the plug extends into the through groove, and the beveled surface contacts the inner wall of the through groove, so that the plug blocks the second outlet.

6. The hot water valve according to claim 5, characterized in that: The sealing assembly also includes a second sealing gasket, which is installed between the bottom of the plug and the outer wall of the valve stem.

7. The hot water valve according to claim 1, characterized in that: The memory spring is a nickel-titanium alloy spring.

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