Time delay valve with pressure relief structure

Abstract

The utility model discloses a delay valve with a pressure relief structure, which comprises a valve body, the valve body is provided with a first cavity and a second cavity, the first cavity comprises a first upper cavity and a first lower cavity, a first water channel is arranged between the first upper cavity and the first lower cavity, and the first upper cavity is communicated with the first lower cavity through the first water channel. The first upper cavity is provided with a water inlet channel, the first lower cavity is provided with a water outlet channel, and water in the first upper cavity can flow to the first lower cavity through the second cavity; the time delay assembly is arranged on the first water channel, and the time delay assembly can move up and down in the first upper cavity along the axis of the first upper cavity so as to change the communication state of the first upper cavity and the first lower cavity; the pressure relief assembly is arranged in the second cavity, and the pressure relief assembly is used for changing the pressure difference between the first upper cavity and the first lower cavity and the communication state of the first upper cavity and the first lower cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of time-delay valves, in particular to a time-delay valve with a pressure relief structure. Background Art

[0002] The existing delay valve is affected by water pressure, and the user needs to exert great effort when pressing it. In addition, the existing delay valve generally utilizes an integrated design of a pressing rod and a shaft, and is composed of multiple sealing rings. However, after long-term use, the sealing rings age, which can easily lead to a deterioration in the sealing effect of the valve body and a high failure rate of the valve body. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a time-delay valve with a pressure relief structure, in which the pressing rod and the shaft are changed from the original integrated design to a split design, and are connected magnetically, a discharge port is arranged at the bottom of the base, and a water inlet is arranged on the side wall of the base, and when the user presses the rod body to move downward, the rod body sucks up the shaft, so that the bottom of the shaft no longer blocks the discharge port, thereby achieving drainage or exhaust, greatly reducing the effort required by the user during operation, and extending the service life of the valve body.

[0004] According to an embodiment of the utility model, a time delay valve with a pressure relief structure includes:

[0005] The valve body comprises a first cavity and a second cavity, the first cavity comprises a first upper cavity and a first lower cavity, a first water channel is arranged between the first upper cavity and the first lower cavity, the first water channel enables the first upper cavity and the first lower cavity to communicate, the first upper cavity is provided with a water inlet channel, the first lower cavity is provided with a water outlet channel, and the water in the first upper cavity can flow to the first lower cavity through the second cavity;

[0006] A delay component is arranged on the first water channel, and the delay component can move up and down along the axis of the first upper cavity to change the connection state between the first upper cavity and the first lower cavity;

[0007] The pressure relief component is arranged in the second cavity, and is used to change the pressure difference between the first upper cavity and the first lower cavity and the connection state between the first upper cavity and the first lower cavity.

[0008] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, the second cavity includes a second upper cavity and a second lower cavity, the second upper cavity and the second lower cavity are connected through a second water channel, and the pressure relief component is arranged on the second water channel.

[0009] According to an embodiment of the utility model, a time-delay valve with a pressure relief structure, the pressure relief component includes a fixed body, a pressing component and a movable rod, the fixed body is provided with an upper movable chamber and a lower movable chamber in sequence along the longitudinal direction, the pressing component is arranged in the upper movable chamber, the movable rod is arranged in the lower movable chamber, the end of the pressing component is magnetically connected to the end of the movable rod, the bottom of the lower movable chamber is provided with a water inlet connected to the second upper chamber and a water outlet connected to the lower movable chamber, the bottom of the movable rod is movably abutted against the water outlet to change the connection state between the lower movable chamber and the second lower chamber.

[0010] According to an embodiment of the utility model, a time-delay valve with a pressure relief structure, a pressing assembly includes a button, a mounting shell and a magnetic body, the mounting shell is plugged into the upper active cavity, the button is arranged outside the upper active cavity and fixedly connected to one end of the mounting shell, and the magnetic body is arranged in the upper active cavity and fixedly connected to the other end of the mounting shell.

[0011] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, a first spring is arranged between the button and the fixed body.

[0012] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, a second spring is arranged in the lower movable chamber, one end of the movable rod is plugged into the second spring, and one end of the second spring away from the upper movable chamber abuts against the limiting step of the movable rod.

[0013] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, a rubber particle is arranged at one end of the movable rod away from the pressing component.

[0014] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, the fixed body is a tubular structure with a hollow interior, and a partition plate is provided in the inner cavity of the fixed body to divide the inner cavity of the fixed body into an upper active cavity and a lower active cavity.

[0015] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, a sealing ring is arranged between the partition plate and the bottom of the upper active chamber.

[0016] According to a time delay valve with a pressure relief structure in an embodiment of the utility model, a third water channel is arranged between the first upper cavity and the second upper cavity, and a water inlet of the third water channel is arranged at the upper part of the first upper cavity.

[0017] A time-delay valve with a pressure relief structure according to an embodiment of the utility model has at least the following beneficial effects: during a normal time when pressure relief is not required, the first upper cavity of the first cavity is filled with water, while the first lower cavity is empty of water. At this time, the water pressure of the first upper cavity is greater than the water pressure of the first lower cavity. The water pressure difference between the two cavities presses the time-delay component against the water outlet of the first water channel to cut off the connection between the first upper cavity and the first lower cavity, and the pressure relief component in the second cavity also cuts off the connection between the first upper cavity and the first lower cavity.

[0018] When the user needs to use water, the user continues to press the button, so that the button drives the magnetic body to move downward until the magnetic body absorbs the movable rod so that the movable rod moves upward. At this time, the end of the movable rod no longer blocks the water outlet at the bottom of the lower movable chamber. At this time, the water in the first upper chamber can flow to the first lower chamber. The specific water flow direction is: the water in the first upper chamber flows to the second upper chamber through the third water channel, the water in the second upper chamber flows to the lower movable chamber through the second water channel, and the water in the lower movable chamber flows to the second lower chamber through the water outlet at the bottom of the lower movable chamber. Finally, the water in the second lower chamber flows to the first lower chamber, so that the water in the first lower chamber gradually increases, so that the water pressure difference between the first upper chamber and the first lower chamber gradually decreases. When the water pressure difference between the first upper chamber and the first lower chamber gradually decreases, the delay component also gradually moves upward due to the gradual decrease in the water pressure difference. At this time, the first water channel is opened, and the first upper chamber and the first lower chamber are connected. The water in the first upper chamber can quickly flow directly to the first lower chamber through the first water channel to achieve water outlet.

[0019] On the contrary, when the user turns off the water, the user only needs to stop pressing the button. The button moves upward under the resetting action of the first spring, driving the magnetic body to move upward, so that the movable rod is no longer magnetically attracted by the magnetic body, and the movable rod moves downward and resets under the action of the second spring, blocking the water outlet of the lower movable chamber, and cutting off the connection between the second upper chamber and the second lower chamber. At this time, since the amount of water in the first lower chamber gradually decreases, and the amount of water in the first upper chamber is greater than the amount of water in the first lower chamber, the water pressure in the first upper chamber is higher than the water pressure in the first lower chamber. At this time, the delay component slowly moves downward under the action of the water pressure and finally blocks the first water channel again. At this time, all water channels between the first upper chamber and the second lower chamber are cut off, and the water is turned off.

[0020] Among them, since the inner diameter of the third water channel and the inner diameter of the water outlet of the lower active chamber are relatively small, the water flow to the second lower chamber is small, so that the water pressure difference between the first upper chamber and the second lower chamber can change slowly, thereby achieving the effect of delayed water shut-off. In addition, the pressure relief component is started by magnetic connection, and the user does not need to press the button with much effort. The operation is simple, and the pressing force is stable. The user will not be affected by the change of water pressure when pressing the button. In addition, because the magnetic connection is reliable, there will be no failure in long-term use, and the structure is stable and reliable.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a structural exploded view of a time delay valve with a pressure relief structure according to an embodiment of the utility model;

[0024] Figure 2 This is a structural cross-sectional view of a time delay valve with a pressure relief structure according to an embodiment of the utility model;

[0025] Figure 3 It is a structural cross-sectional view of a pressure relief assembly according to an embodiment of the utility model;

[0026] Figure 4 This is a structural diagram of a valve body according to an embodiment of the utility model;

[0027] Figure 5 This is an axonometric view of a time delay valve with a pressure relief structure according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] Valve body 100; first upper cavity 110; water inlet channel 111; first lower cavity 120; water outlet channel 121; first water channel 130; second cavity 140; second upper cavity 141; second lower cavity 142; second water channel 143; third water channel 150;

[0030] Delay component 200;

[0031] Pressure relief assembly 300; fixed body 310; upper movable chamber 311; lower movable chamber 312; water inlet 3121; water outlet 3122; movable rod 320; rubber particle 321; button 330; mounting shell 340; magnetic body 350; first spring 360; partition plate 370; second spring 380. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of utility models, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as excluding the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 1 to 3The embodiment of the utility model provides a time-delay valve with a pressure relief structure, including a valve body 100, the valve body 100 has a first cavity and a second cavity 140, the first cavity includes a first upper cavity 110 and a first lower cavity 120, a first water channel 130 is arranged between the first upper cavity 110 and the first lower cavity 120, the first water channel 130 makes the first upper cavity 110 and the first lower cavity 120 communicate, the first upper cavity 110 is provided with a water inlet channel 111, the first lower cavity 120 is provided with a water outlet channel 121, the water in the first upper cavity 110 can pass through the second The liquid flows from the first upper cavity 110 to the first lower cavity 120; the delay component 200 is arranged on the first water channel 130, and the delay component 200 can move up and down along the axis of the first upper cavity 110 in the first upper cavity 110 to change the connection state between the first upper cavity 110 and the first lower cavity 120; the pressure relief component 300 is arranged in the second cavity 140, and the pressure relief component 300 is used to change the pressure difference between the first upper cavity 110 and the first lower cavity 120 and the connection state between the first upper cavity 110 and the first lower cavity 120.

[0037] According to some embodiments of the present application, the second cavity 140 includes a second upper cavity 141 and a second lower cavity 142 . The second upper cavity 141 and the second lower cavity 142 are connected through a second water channel 143 , and the pressure relief assembly 300 is disposed on the second water channel 143 .

[0038] According to some embodiments of the present application, Figure 1 As shown, the pressure relief assembly 300 includes a fixed body 310, a pressing assembly and a movable rod 320. The fixed body 310 is provided with an upper movable chamber 311 and a lower movable chamber 312 in sequence along the longitudinal direction. The pressing assembly is arranged in the upper movable chamber 311, and the movable rod 320 is arranged in the lower movable chamber 312. The end of the pressing assembly is magnetically connected to the end of the movable rod 320. The bottom of the lower movable chamber 312 is provided with a water inlet 3121 connected to the second upper chamber 141 and a water outlet 3122 connected to the lower movable chamber 312. The bottom of the movable rod 320 is movably abutted against the water outlet to change the connection state of the lower movable chamber 312 and the second lower chamber 142.

[0039] According to some embodiments of the present application, Figure 2 As shown, the pressing assembly includes a button 330, a mounting shell 340 and a magnetic body 350. The mounting shell 340 is plugged into the upper movable cavity 311. The button 330 is arranged outside the upper movable cavity 311 and fixedly connected to one end of the mounting shell 340. The magnetic body 350 is arranged inside the upper movable cavity 311 and fixedly connected to the other end of the mounting shell 340. Specifically, a first spring 360 is arranged between the button 330 and the fixed body 310, and the first spring 360 plays a role in resetting the button 330.

[0040] According to some embodiments of the present application, a second spring 380 is disposed in the lower movable cavity 312 , one end of the movable rod 320 is plugged into the second spring 380 , and one end of the second spring 380 away from the upper movable cavity 311 abuts against the limiting step of the movable rod 320 .

[0041] According to some embodiments of the present application, a rubber particle 321 is provided at one end of the movable rod 320 away from the pressing assembly, and the rubber particle 321 is used to improve the sealing performance of the movable rod 320 when blocking the water outlet 3122 of the lower movable cavity 312.

[0042] According to some embodiments of the present application, the fixed body 310 is a tubular structure with a hollow interior, and the inner cavity of the fixed body 310 is provided with a partition plate 370 to divide the inner cavity of the fixed body 310 into an upper movable cavity 311 and a lower movable cavity 312. Among them, the fixed body 310 is directly processed into a tubular structure, which can simplify the processing technology and reduce the production cost. Furthermore, a sealing ring is provided between the partition plate 370 and the bottom of the upper movable cavity 311, which can improve the sealing performance and prevent the water in the lower movable cavity 312 from penetrating into the upper movable cavity 311.

[0043] According to some embodiments of the present application, a third water channel 150 is disposed between the first upper cavity 110 and the second upper cavity 141 . Specifically, as shown in the figure, a water inlet of the third water channel 150 is disposed at the upper portion of the first upper cavity 110 .

[0044] During the normal time when pressure relief is not required, the first upper cavity 110 of the first cavity is filled with water, while the first lower cavity is empty. At this time, the water pressure of the first upper cavity 110 is greater than the water pressure of the first lower cavity 120. The water pressure difference between the two cavities presses the delay component 200 against the water outlet of the first water channel 130 to cut off the connection between the first upper cavity 110 and the first lower cavity 120. At this time, the pressure relief component 300 in the second cavity 140 also cuts off the connection between the first upper cavity 110 and the first lower cavity 120.

[0045] When the user needs to use water, the user continues to press the button 330, so that the button 330 drives the magnetic body 350 to move downward until the magnetic body 350 absorbs the movable rod 320 and makes the movable rod 320 move upward. At this time, the end of the movable rod 320 no longer blocks the water outlet at the bottom of the lower movable chamber 312. At this time, the water in the first upper chamber 110 can flow to the first lower chamber 120. The specific water flow direction is: the water in the first upper chamber 110 flows to the second upper chamber 141 through the third water channel 150, and the water in the second upper chamber 141 flows into the lower movable chamber 312 through the second water channel 143, and the water in the lower movable chamber 312 flows to the second lower chamber 142 through the water outlet 3122 at the bottom of the lower movable chamber 312. Finally, the water in the second lower chamber 142 flows into the first lower chamber 120, so that the water in the first lower chamber 120 gradually increases, so that the water pressure difference between the first upper chamber 110 and the first lower chamber 120 gradually decreases. When the water pressure difference between the first upper cavity 110 and the first lower cavity 120 gradually decreases, the delay component 200 also gradually moves upward due to the gradual decrease in the water pressure difference. At this time, the first water channel 130 is opened, and the first upper cavity 110 and the first lower cavity 120 are connected. The water in the first upper cavity 110 can flow directly to the first lower cavity 120 through the first water channel 130 to achieve water outlet.

[0046] On the contrary, when the user turns off the water, the user only needs to stop pressing the button 330. The button 330 moves upward under the resetting action of the first spring 360, driving the magnetic body 350 to move upward, so that the movable rod 320 is no longer magnetically attracted by the magnetic body 350. The movable rod 320 moves downward and resets under the action of the second spring 380, blocking the water outlet 3122 of the lower movable chamber 312, and cutting off the connection between the second upper chamber 141 and the second lower chamber 142. At this time, since the amount of water in the first lower chamber 120 gradually decreases, and the amount of water in the first upper chamber 110 is greater than the amount of water in the first lower chamber 120, the water pressure in the first upper chamber 110 is higher than the water pressure in the first lower chamber 120. At this time, the delay component 200 slowly moves downward under the action of the water pressure and finally blocks the first waterway 130 again. At this time, all waterways of the first upper chamber 110 and the second lower chamber 142 are cut off, and the water is turned off.

[0047] Among them, since the inner diameter of the third water channel 150 and the inner diameter of the water outlet 3122 of the lower active chamber 312 are relatively small, the water flow to the second lower chamber 142 is small, so that the water pressure difference between the first upper chamber 110 and the second lower chamber 142 can change slowly, thereby achieving the effect of delayed water shut-off. In addition, the pressure relief component 300 is started by magnetic connection, and the user does not need to press the button 330 with great effort, which is easy to operate and the pressing force is stable. The user will not be affected by the change of water pressure when pressing the button 330. In addition, since the magnetic connection is reliable, there will be no failure in long-term use, and the structure is stable and reliable.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A time delay valve with a pressure relief structure, characterized in that: include: A valve body, the valve body having a first cavity and a second cavity, the first cavity including a first upper cavity and a first lower cavity, a first water channel is provided between the first upper cavity and the first lower cavity, the first water channel enables the first upper cavity and the first lower cavity to communicate, the first upper cavity is provided with a water inlet channel, the first lower cavity is provided with a water outlet channel, and the water in the first upper cavity can flow to the first lower cavity through the second cavity; A delay component, the delay component is arranged on the first water channel, and the delay component can move up and down along the axis of the first upper cavity in the first upper cavity to change the connection state between the first upper cavity and the first lower cavity; A pressure relief component is disposed in the second cavity, and is used to change the pressure difference between the first upper cavity and the first lower cavity and the connection state between the first upper cavity and the first lower cavity.

2. A time delay valve with a pressure relief structure according to claim 1, characterized in that: The second cavity includes a second upper cavity and a second lower cavity, the second upper cavity and the second lower cavity are connected through a second water channel, and the pressure relief assembly is arranged on the second water channel.

3. A time delay valve with a pressure relief structure according to claim 2, characterized in that: The pressure relief assembly includes a fixed body, a pressing assembly and a movable rod. The fixed body is provided with an upper movable chamber and a lower movable chamber in sequence along the longitudinal direction. The pressing assembly is arranged in the upper movable chamber, and the movable rod is arranged in the lower movable chamber. The end of the pressing assembly is magnetically connected to the end of the movable rod. The bottom of the lower movable chamber is provided with a water inlet connected to the second upper chamber and a water outlet connected to the lower movable chamber. The bottom of the movable rod is movably abutted against the water outlet to change the connection state between the lower movable chamber and the second lower chamber.

4. The time delay valve with a pressure relief structure according to claim 3, characterized in that: The pressing assembly includes a button, a mounting shell and a magnetic body. The mounting shell is plugged into the upper movable cavity. The button is arranged outside the upper movable cavity and fixedly connected to one end of the mounting shell. The magnetic body is arranged in the upper movable cavity and fixedly connected to the other end of the mounting shell.

5. The time delay valve with a pressure relief structure according to claim 4, characterized in that: A first spring is arranged between the button and the fixed body.

6. The time delay valve with a pressure relief structure according to claim 4, characterized in that: A second spring is arranged in the lower movable chamber, one end of the movable rod is plugged into the second spring, and one end of the second spring away from the upper movable chamber abuts against the limiting step of the movable rod.

7. The time delay valve with a pressure relief structure according to claim 4, characterized in that: One end of the movable rod away from the pressing assembly is provided with rubber particles.

8. The time delay valve with a pressure relief structure according to claim 3, characterized in that: The fixed body is a tubular structure with a hollow interior, and a partition plate is provided in the inner cavity of the fixed body to divide the inner cavity of the fixed body into the upper active cavity and the lower active cavity.

9. The time delay valve with a pressure relief structure according to claim 8, characterized in that: A sealing ring is arranged between the partition plate and the bottom of the upper movable chamber.

10. The time delay valve with a pressure relief structure according to claim 2, characterized in that: A third water channel is arranged between the first upper cavity and the second upper cavity, and a water inlet of the third water channel is arranged at the upper part of the first upper cavity.

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