Non-pressure water cut-off valve

Abstract

The utility model relates to the technical field of valves, and discloses a non-pressure water cut-off valve, which comprises a valve shell part, a valve core part and a positioning seat frame, a reset pressure rod piece of which the lower end is welded with a plugging valve body is movably inserted and mounted on an upper shell, a magnetic tube seat is arranged in the upper shell, and a pore plate is welded in a lower shell. When water comes, the upward jacking force of the water pressure to the plugging valve body is smaller than the pressure of the reset pressing rod piece, so that the plugging valve body is downwards pressed on the pore plate to plug the communicating hole, and when water comes, the upward jacking force of the water pressure to the plugging valve body is smaller than the pressure of the reset pressing rod piece, so that the plugging valve body cannot move upwards; the reset pressing rod piece can only be pulled up manually, the downward pressure of the reset pressing rod piece is counteracted under the combined action of the upward jacking force of water pressure on the plugging valve body and the magnetic attraction force of the magnetic pipe base on the plugging valve body, manual opening of the communicating hole is achieved, and the phenomenon that water flows out of the faucet after water supply is stopped is completely eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a pressure-free water shut-off valve. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems and have functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief.

[0003] The existing water valves are often used because the water supply system of buildings is often cut off. When water is supplied again, faucets that are not closed or closed tightly will leak water. There is an urgent need for a valve that needs to be manually opened after the water is cut off to prevent the faucet from leaking water due to the water outage. Utility Model Content

[0004] The utility model provides a pressure-free water shut-off valve to solve the problems in the prior art.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] A non-pressure water shut-off valve, comprising:

[0007] A valve housing portion, the valve housing portion comprising a lower housing and an upper housing detachably mounted on the lower housing, an orifice plate being welded in the lower housing, and a magnetic pipe seat being arranged in the upper housing;

[0008] A valve core part, the valve core part comprises a reset pressure rod part movably plugged and installed on the upper shell body and a blocking valve body fixedly welded at the lower end of the reset pressure rod part, and the blocking valve body is arranged in the valve shell part;

[0009] A positioning seat frame is installed on the upper end of the upper shell body, and the upper end of the reset pressure rod is positioned and inserted on the positioning seat frame.

[0010] In a specific embodiment, the lower shell includes a shell cavity and a connecting pipe head fixedly welded on one side of the shell cavity, and the connecting pipe head is connected to the shell cavity;

[0011] The upper shell and the lower shell are configured the same.

[0012] In a specific embodiment, a sealing gasket is fixedly installed in a hole at the upper end of the upper shell for inserting the reset pressure rod.

[0013] In a specific embodiment, the reset pressure rod includes a column rod inserted and installed on the upper shell body and a retaining ring fixedly welded on the column rod, the column rod is provided with a reset spring, the lower end of the reset spring is welded to the retaining ring, the upper end of the reset spring is welded to the positioning seat frame, and a retaining head is welded on the top end of the column rod.

[0014] In a specific embodiment, the blocking valve body includes a reinforcing plate welded to the lower end of the column rod and a rubber plug valve fixedly connected to the lower end surface of the reinforcing plate;

[0015] The rubber plug valve blocks the communicating hole of the orifice plate, and the magnetic pipe seat magnetically attracts the reinforcing plate.

[0016] In a specific embodiment, the positioning seat frame includes a frame body detachably mounted on the upper shell body by screws, and a socket for positioning and plugging the column rod is opened on the frame body.

[0017] In a specific embodiment, the diameter of the column rod matches the diameter of the insertion hole, and the diameter of the column rod matches the inner diameter of the magnetic tube seat.

[0018] The beneficial effects of the utility model are:

[0019] The reset pressure rod member welded with the sealing valve body at the lower end is movably plugged and installed on the upper shell body, and a magnetic pipe seat is arranged in the upper shell body, and an orifice plate is welded in the lower shell body. During normal use, the water pressure is maintained, and the water pressure pushes up the sealing valve body and the magnetic pipe seat adsorbs the sealing valve body, so that the connecting hole of the orifice plate is opened. When the water is cut off and the pressure is lost, the sealing valve body is no longer subjected to the upward force, and the magnetic attraction force of the magnetic pipe seat on the sealing valve body is less than the pressure of the reset pressure rod member, so that the sealing valve body is pressed down on the orifice plate to block the connecting hole. When water comes, the upward force of the water pressure on the sealing valve body is less than the pressure of the reset pressure rod member, and the sealing valve body cannot be moved up, and the reset pressure rod member can only be manually pulled up. Under the combined action of the upward force of the water pressure on the sealing valve body and the magnetic attraction force of the magnetic pipe seat on the sealing valve body, the downward pressure of the reset pressure rod member is offset, so that the connecting hole is manually opened, and the phenomenon of water leakage caused by the faucet after the water is cut off is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0023] Figure 3 The utility model is a structural schematic diagram of the rubber plug valve when blocking the connecting hole of the orifice plate.

[0024] Figure 4 It is a schematic diagram of the structure when the rubber plug valve of the utility model does not block the communicating hole of the orifice plate.

[0025] In the figure: 100, valve shell; 110, lower shell; 111, shell cavity; 112, connecting pipe head; 120, upper shell; 121, sealing gasket; 101, orifice plate; 102, magnetic tube seat; 200, valve core; 210, reset pressure rod; 211, column rod; 212, retaining ring; 213, reset spring; 214, retaining head; 220, blocking valve body; 221, reinforcing plate; 222, rubber plug valve; 300, positioning seat frame; 310, frame body; 320, socket. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like 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 application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] Reference Figure 1-4 As shown, the utility model provides a non-pressure water shut-off valve, comprising:

[0034] The valve housing 100 includes a lower housing 110 and an upper housing 120 detachably mounted on the lower housing 110 , an orifice plate 101 is welded in the lower housing 110 , and a magnetic pipe seat 102 is arranged in the upper housing 120 ;

[0035] The valve core part 200 includes a reset pressure rod 210 movably plugged and installed on the upper housing 120 and a blocking valve body 220 fixedly welded to the lower end of the reset pressure rod 210. The blocking valve body 220 is arranged in the valve housing part 100;

[0036] The positioning frame 300 is installed on the upper end of the upper shell 120 , and the upper end of the reset pressure rod 210 is positioned and plugged on the positioning frame 300 .

[0037] In normal use, the water pressure is maintained, and the water pressure pushes up the blocking valve body 220 and the magnetic pipe seat 102 adsorbs the blocking valve body 220, so that the connecting hole of the orifice plate 101 is opened;

[0038] When the water supply is cut off and the pressure is lost, the blocking valve body 220 is no longer subjected to the upward force, and the magnetic attraction force of the magnetic pipe seat 102 on the blocking valve body 220 is smaller than the pressure of the reset pressure rod 210, so that the blocking valve body 220 is pressed down on the orifice plate 101 to block the connecting hole;

[0039] When water comes, the upward force of the water pressure on the blocking valve body 220 is smaller than the pressure of the reset pressure rod 210, and the blocking valve body 220 cannot be moved upward. The reset pressure rod 210 can only be pulled up manually. The upward force of the water pressure on the blocking valve body 220 and the magnetic attraction of the magnetic pipe seat 102 on the blocking valve body 220 offset the downward pressure of the reset pressure rod 210, thereby realizing manual opening of the connecting hole and preventing the faucet from leaking water after water is cut off.

[0040] As a further preferred embodiment of the above embodiment, the lower shell 110 includes a shell cavity 111 and a connecting pipe head 112 fixedly welded to one side of the shell cavity 111, and the connecting pipe head 112 is connected to the shell cavity 111;

[0041] The upper housing 120 is configured similarly to the lower housing 110 .

[0042] As a further preferred embodiment of the above embodiment, a sealing gasket ring 121 is fixedly installed in the hole at the upper end of the upper shell 120 for inserting the reset pressure rod 210, and the sealing gasket ring 121 can improve the sealing performance.

[0043] As a further preference of the above embodiment, the reset pressure rod 210 includes a column 211 inserted and installed on the upper shell 120 and a retaining ring 212 fixedly welded to the column 211, the column 211 is provided with a reset spring 213, the lower end of the reset spring 213 is welded to the retaining ring 212, the upper end of the reset spring 213 is welded to the positioning frame 300, and the top of the column 211 is welded with a retaining head 214.

[0044] As a further preferred embodiment of the above embodiment, the blocking valve body 220 includes a reinforcing plate 221 welded to the lower end of the column rod 211 and a rubber plug valve 222 fixedly connected to the lower end surface of the reinforcing plate 221;

[0045] The rubber stopper valve 222 blocks the communicating hole of the orifice plate 101 , and the magnetic tube holder 102 magnetically attracts the reinforcing plate 221 .

[0046] The upward force of the water pressure on the blocking valve body 220 is less than the pressure of the return spring 213, and the blocking valve body 220 cannot be moved upward. The column rod 211 can only be pulled up manually. The upward force of the water pressure on the blocking valve body 220 and the magnetic attraction of the magnetic pipe seat 102 on the blocking valve body 220 offset the downward pressure of the return spring 213, thereby realizing manual opening of the connecting hole and preventing the faucet from leaking water after water outage.

[0047] As a further preferred embodiment of the above embodiment, the positioning bracket 300 includes a bracket body 310 detachably mounted on the upper shell 120 by screws, and a socket 320 for positioning and plugging the column 211 is provided on the bracket body 310 .

[0048] Furthermore, the diameter of the column rod 211 matches the diameter of the insertion hole 320 , and the diameter of the column rod 211 matches the inner diameter of the magnetic tube holder 102 .

[0049] A silent rubber ring can be installed in the insertion hole 320 , and the column 211 is inserted in the silent rubber ring. When the column 211 moves up and down, the silent rubber ring can reduce the noise generated by friction and reduce the friction damage to the column 211 .

[0050] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A non-pressure water shut-off valve, characterized in that: include: A valve housing (100), the valve housing (100) comprising a lower housing (110) and an upper housing (120) detachably mounted on the lower housing (110), an orifice plate (101) being welded inside the lower housing (110), and a magnetic pipe seat (102) being arranged inside the upper housing (120); A valve core part (200), the valve core part (200) comprising a reset pressure rod (210) movably plugged and mounted on the upper housing (120) and a blocking valve body (220) fixedly welded to the lower end of the reset pressure rod (210), the blocking valve body (220) being arranged in the valve housing part (100); A positioning seat frame (300) is installed on the upper end of the upper shell (120), and the upper end of the reset pressure rod (210) is positioned and plugged into the positioning seat frame (300).

2. A non-pressure water shut-off valve according to claim 1, characterized in that: The lower shell (110) comprises a shell cavity (111) and a connecting pipe head (112) fixedly welded to one side of the shell cavity (111), and the connecting pipe head (112) is in communication with the shell cavity (111); The upper shell (120) and the lower shell (110) are configured in the same manner.

3. A non-pressure water shut-off valve according to claim 2, characterized in that: A sealing gasket ring (121) is fixedly installed in a hole at the upper end of the upper shell (120) for inserting the reset pressure rod (210).

4. The non-pressure water shut-off valve according to claim 1, characterized in that: The reset pressure rod (210) comprises a column (211) inserted and installed on the upper shell (120) and a retaining ring (212) fixedly welded to the column (211); the column (211) is provided with a reset spring (213); the lower end of the reset spring (213) is welded to the retaining ring (212); the upper end of the reset spring (213) is welded to the positioning seat (300); and the top end of the column (211) is welded with a retaining head (214).

5. The non-pressure water shut-off valve according to claim 4, characterized in that: The blocking valve body (220) comprises a reinforcing plate (221) welded to the lower end of the column rod (211) and a rubber plug valve (222) fixedly connected to the lower end surface of the reinforcing plate (221); The rubber stopper valve (222) blocks the communicating hole of the orifice plate (101), and the magnetic tube seat (102) magnetically attracts the reinforcing plate (221).

6. A non-pressure water shut-off valve according to claim 5, characterized in that: The positioning seat frame (300) comprises a frame body (310) detachably mounted on the upper shell (120) by means of screws, and a plug hole (320) for positioning and plugging the column rod (211) is provided on the frame body (310).

7. The non-pressure water shut-off valve according to claim 6, characterized in that: The diameter of the column rod (211) matches the diameter of the insertion hole (320), and the diameter of the column rod (211) matches the inner diameter of the magnetic tube seat (102).

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