CN221762677U - A channel anti-reverse valve and channel structure - Google Patents

Abstract

The utility model discloses a channel non-return valve, which comprises a pipe body and an inner pipe, wherein the inner pipe is fixed in the pipe body, a valve core is arranged in the inner pipe in a sliding manner and is provided with a spring, a valve seat is arranged at the inner end of the inner pipe, a baffle cover is detachably arranged at the outer end of the inner pipe, a water inlet is arranged in the middle of the valve seat, a water outlet is arranged in the middle of the baffle cover, a filtering part is arranged between the inner pipe and the baffle cover, the spring is abutted between the filtering part and the valve core, the valve core is abutted on the valve seat, a protective cover is detachably arranged at the water outlet end of the pipe body, and a water drain hole is arranged at the side part of the protective cover. The utility model also discloses a channel structure, including the channel, there is the mounting hole on the lateral wall of channel, installs the channel check valve in the mounting hole, and the body wears to locate in the mounting hole, and the safety cover is in the channel, and the body stretches to the outside one end of channel and blocks up and be equipped with the filtration sand heap. This channel check valve and channel structure can prevent that filter element from receiving the influence of external environment such as exploding and shining, easy dismounting, inside clearance of inner tube and spring change are convenient.

Description

A channel anti-reverse valve and channel structure

Technical Field

The utility model relates to the technical field of channel engineering, in particular to a channel anti-reverse valve and a channel structure.

Background Art

During the channel construction process, it is necessary to consider how to allow water in the external soil to flow into the channel and how to prevent water in the channel from seeping into the external soil. Especially for hillside channel construction, if the water in the external soil of the channel cannot flow into the channel smoothly, it is easy to cause landslide disasters in heavy rain. The existing method is to install an anti-seepage channel reverse drainage check valve at the bottom of the channel to allow water outside the channel to flow into the channel and prevent the water inside the channel from flowing into the external soil.

The anti-seepage channel reverse drainage check valve with existing application number 200620006928.1 is equipped with a combined valve core with a water filter installed in a tubular valve body through a threaded connection. The combined valve core is a pipe seat with a shoulder at the outer end, and a valve core seat is installed in the pipe seat at the other end through a threaded connection. The center of the base of the valve core seat has a drainage screw hole, and the drainage pipe of the water filter is connected to the drainage screw hole of the base. A valve core tube with an outer diameter smaller than the inner diameter of the pipe seat is arranged on the upper part of the base of the valve core seat, an internal thread is arranged in the upper end of the valve core tube, and drainage holes are evenly arranged on the lower side wall of the valve core tube. A valve core controlled by a limit spring is installed in the valve core tube, and the valve core cooperates with the joint surface of the base of the core seat. The drain check valve has the following disadvantages: first, the filter is arranged on the outer port of the pipe seat, which is easily affected by the external environment, such as damage by exposure to the sun; second, the pipe seat and internal components need to be disassembled and assembled as a whole, which is inconvenient, and it is inconvenient to clean the inside of the valve core tube and replace the limit spring.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a channel anti-reverse valve and a channel structure which can prevent the filter components from being affected by external environments such as exposure to the sun, is easy to disassemble and assemble, and is convenient for cleaning the inside of the inner tube and replacing the spring.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A channel anti-return valve comprises a tube body and an inner tube, wherein the inner tube is fixed in the tube body and the outer diameter of the inner tube is smaller than the inner diameter of the tube body, a valve core is slidably arranged in the inner tube, and a spring is arranged therein, the tube body is provided with a valve seat at the inner end of the inner tube, and a baffle is detachably arranged at the outer end of the inner tube, a water inlet is arranged in the middle of the valve seat, a drain outlet is arranged in the middle of the baffle, a filter component is pressed between the inner tube and the baffle, the spring is pressed between the filter component and the valve core, the valve core is pressed against the valve seat to block the water inlet, a protective cover is detachably arranged at the water outlet end of the tube body, and a drain hole is arranged on the side of the protective cover.

As a further improvement of the above technical solution:

The protection cover is provided with an expansion port, one side of the expansion port is hinged with a door plate for opening and closing the expansion port, and the other side of the expansion port is provided with a limiting portion for blocking the limiting door plate.

The side surface of the door panel away from the hinged side is set as a blocking inclined surface, and the limiting part is provided with a blocking inclined surface adapted to the blocking inclined surface.

The door panel is perpendicular to the central axis of the tube body in a closed state.

The protective cover is threadedly connected to the pipe body.

The blocking cover is threadedly connected to the tube body.

The drain port is hexagonal.

The valve seat is provided with a sealing gasket at the periphery of the water inlet, and the valve core is tightly pressed against the sealing gasket.

A through hole is provided on the side wall of the inner tube.

A channel structure comprises a channel, wherein a mounting hole is penetrated through the side wall of the channel, the above-mentioned channel anti-return valve is installed in the mounting hole, the pipe body is penetrated in the mounting hole, the protective cover faces the inside of the channel, and a filter sand pile is blocked at one end of the pipe body extending outside the channel.

Compared with the prior art, the advantages of the utility model are:

The utility model of the channel anti-return valve, firstly, the channel anti-return valve is detachably provided with a protective cover at the water outlet end of the pipe body, and the protective cover is arranged outside the filter component, which can prevent the filter component from being affected by external environments such as exposure to the sun, thereby increasing the service life. Secondly, when cleaning the inside of the inner tube and the filter component, and when cleaning or replacing the spring, first remove the protective cover, then remove the baffle, and then take out the filter component and the spring, that is, the inside of the inner tube and the filter component can be cleaned, and the spring can be cleaned or replaced. Compared with the prior art, the valve core tube and all the components thereon are disassembled as a whole, and the disassembly and assembly are more convenient, and the cleaning of the inner tube and the replacement of the spring are more convenient.

The channel anti-return valve of the utility model is installed in the channel for use, with the water outlet end of the pipe body facing the channel, the protective cover facing the channel, the door panel tilted, and the side of the door panel away from the hinged side resting on the limiting part under the action of gravity. In this way, when a large amount of water flow infiltrates into the soil outside the channel, the water flow through the channel anti-return valve can push open the door panel to expand the drainage volume.

The channel structure of the utility model, firstly, a protective cover is detachably provided at the water outlet end of the pipe body, the protective cover faces the inside of the channel and is provided outside the filter component, which can prevent the filter component from being affected by external environments such as exposure to the sun, thereby increasing the service life. Secondly, when cleaning the inside of the inner tube and the filter component, and when cleaning or replacing the spring, the protective cover is first removed, then the baffle is removed, and then the filter component and the spring are taken out, so that the inside of the inner tube and the filter component can be cleaned, and the spring can be cleaned or replaced. Compared with the prior art, the valve core tube and all the components thereon are disassembled as a whole, and the disassembly and assembly is more convenient, and the cleaning of the inside of the inner tube and the replacement of the spring are more convenient. A filter sand pile is provided at one end of the pipe body extending outside the channel to prevent large particles of debris from entering the pipe body and causing blockage.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a channel anti-reverse valve according to the present invention.

FIG. 2 is an enlarged schematic diagram of the structure at point A in FIG. 1 .

FIG. 3 is an enlarged structural schematic diagram of point B in FIG. 1 .

FIG. 4 is a schematic diagram of the structure of the channel structure of the present utility model.

FIG. 5 is an enlarged schematic diagram of the structure at point C in FIG. 4 .

The symbols in the figure represent:

1. Tube body; 2. Inner tube; 21. Through hole; 3. Valve core; 4. Valve seat; 41. Water inlet; 42. Sealing gasket; 43. Clamp; 5. Blocking cover; 51. Drain outlet; 6. Filter component; 7. Spring; 8. Protective cover; 81. Drain hole; 9. Expansion outlet; 91. Door panel; 911. Blocking slope; 92. Limiting part; 921. Blocking slope; 10. Channel; 11. Mounting hole; 12. Filter sand pile.

DETAILED DESCRIPTION

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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 the present invention can be understood according to specific circumstances.

Embodiment 1:

Fig. 1 to Fig. 3 show an embodiment of the channel anti-return valve of the utility model. The channel anti-return valve of the utility model comprises a pipe body 1 and an inner pipe 2. The inner pipe 2 is fixed in the pipe body 1, and the outer diameter of the inner pipe 2 is smaller than the inner diameter of the pipe body 1. A valve core 3 and a spring 7 are slidably arranged in the inner pipe 2. The pipe body 1 is provided with a valve seat 4 at the inner end of the inner pipe 2, and a stop cover 5 is detachably arranged at the outer end of the inner pipe 2. A water inlet 41 is arranged in the middle of the valve seat 4, and a drain port 51 is arranged in the middle of the stop cover 5. A filter component 6 is pressed between the inner pipe 2 and the stop cover 5. The spring 7 is pressed between the filter component 6 and the valve core 3. The valve core 3 is pressed against the valve seat 4 to block the water inlet 41. A protective cover 8 is detachably arranged at the water outlet end of the pipe body 1, and a drain hole 81 is arranged on the side of the protective cover 8. One end of the inner pipe 2 facing the water outlet end of the pipe body 1 is the outer end of the inner pipe 2, and the other end is the inner end.

First, the anti-return valve of the channel is detachably provided with a protective cover 8 at the water outlet end of the pipe body 1. The protective cover 8 is provided outside the filter component 6, which can prevent the filter component 6 from being affected by external environments such as exposure to the sun, thereby increasing the service life. Secondly, when cleaning the inside of the inner tube 2 and the filter component 6, and when cleaning or replacing the spring 7, first remove the protective cover 8, then remove the baffle 5, and then take out the filter component 6 and the spring 7, that is, the inside of the inner tube 2 and the filter component 6 can be cleaned, and the spring 7 can be cleaned or replaced. Compared with the prior art, the valve core tube and all the components thereon are disassembled as a whole, and the disassembly and assembly is more convenient, and the cleaning of the inside of the inner tube 2 and the replacement of the spring 7 are more convenient.

Further, as shown in Fig. 1 and Fig. 2, in this embodiment, the protective cover 8 is provided with an expansion port 9, one side of the expansion port 9 is hinged with a door plate 91 for opening and closing the expansion port 9, and the other side of the expansion port 9 is provided with a limiting portion 92 for blocking the limiting door plate 91. When the channel anti-return valve is installed in the channel 10 for use, the water outlet end of the pipe body 1 faces the channel 10, the protective cover 8 faces the channel 10, the door plate 91 is tilted, and the side of the door plate 91 away from the hinged side rests on the limiting portion 92 under the action of gravity. In this way, when the water flow infiltrates a large amount of the soil outside the channel 10, the water flow through the channel anti-return valve can push open the door plate 91 to expand the drainage volume.

Further, as shown in FIG. 2 , in this embodiment, the side of the door panel 91 away from the hinge side is set as a blocking slope 911, and the limiting portion 92 is provided with a blocking slope 921 adapted to the blocking slope 911. When the channel anti-reverse valve is installed in the channel 10 for use, the door panel 91 is tilted, and the blocking slope 911 of the door panel 91 away from the hinge side is placed on the blocking slope 921 under the action of gravity. At this time, the blocking slope 921 blocks the door panel 91 in the closed state, but does not prevent the door panel 91 from flipping up and opening.

Furthermore, in this embodiment, the door plate 91 is perpendicular to the central axis of the tube body 1 in the closed state.

Furthermore, in this embodiment, the protective cover 8 is threadedly connected to the pipe body 1. Preferably, the water outlet end of the pipe body 1 is provided with an external thread, and the protective cover 8 is threadedly connected to the external thread of the water outlet end of the pipe body 1, which is convenient for disassembly and assembly.

Furthermore, in this embodiment, the blocking cover 5 is threadedly connected to the pipe body 1. Preferably, the water outlet end of the pipe body 1 is provided with an internal thread, and the blocking cover 5 is threadedly connected to the internal thread of the water outlet end of the pipe body 1, which is convenient for disassembly and assembly.

Furthermore, in this embodiment, the drain port 51 is hexagonal, which is convenient for operation with existing wrenches. Of course, the drain port 51 can also be polygonal, such as an octagon, or other shapes that match existing wrenches.

Further, as shown in FIG. 1 and FIG. 3 , in this embodiment, the valve seat 4 is provided with a sealing gasket 42 at the periphery of the water inlet 41, and the valve core 3 is pressed against the sealing gasket 42. The valve core 3 is pressed against the sealing gasket 42 under the elastic force of the spring 7, so that the water in the pipe body 1 can only flow in from the water inlet end and out from the water outlet end, but cannot flow in from the water outlet end and out from the water inlet end. The valve core 3 is in contact with the sealing gasket 42 to improve the sealing performance. Preferably, the sealing gasket 42 is a flexible gasket, such as a rubber gasket.

Furthermore, in this embodiment, a through hole 21 is provided on the side wall of the inner tube 2 to facilitate water flow through and improve water flow efficiency.

Furthermore, in this embodiment, a clamping seat 43 is provided on the side of the valve seat 4 facing the valve core 3 at the periphery of the water inlet 41, and the sealing gasket 42 is clamped on the clamping seat 43 for easy replacement. Preferably, the valve seat 4 is fixed to the inner wall of the pipe body 1 as a whole, such as by threaded connection or welding, and the clamping seat 43 is fixed to the valve seat 4 as a whole.

Embodiment 2:

Figures 4 and 5 show an embodiment of the channel structure of the utility model. The channel structure of this embodiment includes a channel 10. A mounting hole 11 is penetrated on the side wall of the channel 10. The channel anti-return valve of the first embodiment is installed in the mounting hole 11. The pipe body 1 is penetrated in the mounting hole 11, and the protective cover 8 faces the channel 10. The end of the pipe body 1 extending outside the channel 10 is blocked with a filter sand pile 12.

First, the water outlet end of the pipe body 1 is detachably provided with a protective cover 8, which faces the channel 10 and covers the outside of the filter component 6, so as to prevent the filter component 6 from being affected by external environments such as exposure to the sun, thereby increasing the service life. Secondly, when cleaning the interior of the inner tube 2 and the filter component 6, and when cleaning or replacing the spring 7, first remove the protective cover 8, then remove the baffle 5, and then take out the filter component 6 and the spring 7, so that the interior of the inner tube 2 and the filter component 6 can be cleaned, and the spring 7 can be cleaned or replaced. Compared with the prior art, the valve core tube and all the components thereon are disassembled as a whole, and the disassembly and assembly is more convenient, and the cleaning of the interior of the inner tube 2 and the replacement of the spring 7 are more convenient. One end of the pipe body 1 extending outside the channel 10 is blocked with a filter sand pile 12 to prevent large particles of debris from entering the pipe body 1 and causing blockage.

Furthermore, in the present embodiment, the outlet end of the pipe body 1 faces the inside of the channel 10, the protective cover 8 faces the inside of the channel 10, the door panel 91 is tilted, and the side of the door panel 91 away from the hinged side rests on the limiting portion 92 under the action of gravity. In this way, when a large amount of water penetrates into the soil outside the channel 10, the water flow through the anti-return valve of the channel can push open the door panel 91 to expand the drainage volume.

Furthermore, in this embodiment, the outer wall of the pipe body 1 is bonded to the inner wall of the mounting hole 11, such as by slurry bonding. The pipe body 1 can be used as a mold rod for the mounting hole 11 when the channel 10 is cast, or the mounting hole 11 can be formed first and the pipe body 1 can be installed later.

Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims (10)

1. A channel anti-return valve, comprising a pipe body (1) and an inner pipe (2), wherein the inner pipe (2) is fixed in the pipe body (1) and the outer diameter of the inner pipe (2) is smaller than the inner diameter of the pipe body (1), characterized in that: a valve core (3) is slidably provided in the inner pipe (2) and a spring (7), the pipe body (1) is provided with a valve seat (4) at the inner end of the inner pipe (2), a stop cover (5) is detachably provided at the outer end of the inner pipe (2), and an inlet is provided in the middle of the valve seat (4). A water inlet (41), a drainage outlet (51) is provided in the middle of the stop cover (5), a filter component (6) is pressed between the inner tube (2) and the stop cover (5), the spring (7) is pressed between the filter component (6) and the valve core (3), the valve core (3) is pressed against the valve seat (4) to block the water inlet (41), and a protective cover (8) is detachably provided at the water outlet end of the tube body (1), and a drainage hole (81) is provided on the side of the protective cover (8). 2. The channel anti-return valve according to claim 1 is characterized in that: the protective cover (8) is provided with an expansion outlet (9), one side of the expansion outlet (9) is hinged with a door plate (91) for opening and closing the expansion outlet (9), and the other side of the expansion outlet (9) is provided with a limiting portion (92) for blocking the limiting door plate (91). 3. The channel anti-return valve according to claim 2 is characterized in that: the side surface of the door plate (91) away from the hinge side is set as a blocking slope (911), and the limiting part (92) is provided with a blocking slope (921) adapted to the blocking slope (911). 4. The channel anti-return valve according to claim 2, characterized in that: the door plate (91) is perpendicular to the central axis of the pipe body (1) in the closed state. 5. The channel anti-return valve according to any one of claims 1 to 4, characterized in that the protective cover (8) is threadedly connected to the pipe body (1). 6. The channel anti-return valve according to any one of claims 1 to 4, characterized in that the blocking cover (5) is threadedly connected to the pipe body (1). 7. The channel anti-return valve according to claim 6, characterized in that the drain outlet (51) is hexagonal. 8. The channel anti-return valve according to any one of claims 1 to 4, characterized in that: the valve seat (4) is provided with a sealing gasket (42) at the periphery of the water inlet (41), and the valve core (3) is tightly pressed against the sealing gasket (42). 9. The channel anti-return valve according to any one of claims 1 to 4, characterized in that a through hole (21) is opened on the side wall of the inner tube (2). 10. A channel structure, comprising a channel (10), characterized in that: a mounting hole (11) is penetrated through the side wall of the channel (10), a channel anti-return valve according to any one of claims 1 to 9 is installed in the mounting hole (11), the pipe body (1) is penetrated in the mounting hole (11), the protective cover (8) faces the inside of the channel (10), and a filter sand pile (12) is provided at one end of the pipe body (1) extending outside the channel (10).