CN216344123U

CN216344123U - Filterable check valve

Info

Publication number: CN216344123U
Application number: CN202121820257.3U
Authority: CN
Inventors: 龙绍伦
Original assignee: Liaoyang Water Supply And Drainage Equipment Valve Co ltd
Current assignee: Liaoyang Water Supply And Drainage Equipment Valve Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-04-19
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses a filterable check valve, which comprises a check valve, wherein a threaded disc is in threaded connection with the left side of the inner surface of the check valve, water inlet meshes are formed in the surface of the threaded disc, a guide plate is fixedly connected to the inner surface of the check valve and positioned on the right side of the threaded disc, a through hole is formed in the right side of the inner cavity of the guide plate, and a floating ball is arranged on the left side of the inner cavity of the check valve and positioned on the right side of the guide plate. According to the utility model, the floating ball, the connecting plate, the sliding groove, the sliding block, the connecting block, the spring, the filter screen disc, the movable rod, the fixed rod, the guide plate, the mounting rod, the first brush, the second brush, the sliding rod, the flow guide pipe and the sealing cover are arranged and matched for use, so that the problems that the existing check valve does not have the function of filtering impurities, the impurities are easily blocked in the check valve after the check valve is used for a long time, the damage of the check valve is caused, certain defects exist, the requirements of users cannot be met, and the practicability of the check valve is reduced are solved.

Description

Filterable check valve

Technical Field

The utility model relates to the technical field of check valves, in particular to a filterable check valve.

Background

The check valve is a valve whose opening and closing member is a circular valve flap and can be actuated by self weight and medium pressure to block back flow of medium, belonging to the field of automatic valve, also called check valve, one-way valve, backflow valve or isolating valve, and its valve flap movement mode can be divided into lift type and swing type, the lift type check valve is similar to the structure of stop valve, and only lacks valve rod for driving valve flap, the medium can be flowed in from inlet end (lower side) and flowed out from outlet end (upper side), when the inlet pressure is greater than the sum of valve flap weight and its flow resistance, the valve can be opened, otherwise, when the medium is back-flowed, the valve can be closed, and the swing type check valve has a valve flap which is obliquely placed and can be rotated around shaft, and its working principle is similar to that of lift type check valve, and its check valve can be used as bottom valve of water-pumping device, and can block back flow of water. The check valve and the stop valve are used in combination, so that the safety isolation effect can be achieved, and the defects that the resistance is large and the sealing performance is poor when the valve is closed are overcome.

In the pipe connection, can use the check valve often, current check valve does not have the function of filtering impurity, uses the check valve for a long time and easily leads to impurity to block up in the check valve to cause the damage of check valve, there is certain drawback, can't satisfy user's demand, reduced the practicality of check valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a filterable check valve, which has the advantage of filtering impurities and solves the problems that the existing check valve does not have the function of filtering impurities, the impurities are easily blocked in the check valve after the existing check valve is used for a long time, the damage of the check valve is caused, certain defects exist, the requirements of users cannot be met, and the practicability of the check valve is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: a filterable check valve comprises a check valve, wherein a threaded disc is in threaded connection with the left side of the inner surface of the check valve, water inlet meshes are formed in the surface of the threaded disc, a guide plate is fixedly connected with the inner surface of the check valve and positioned on the right side of the threaded disc, a through hole is formed in the right side of the inner cavity of the guide plate, a floating ball is arranged on the left side of the inner cavity of the check valve and positioned on the right side of the guide plate, connecting plates are fixedly connected to the top and the bottom of the floating ball, chutes are formed in the top and the left sides of the bottom of the inner cavity of the check valve, sliding blocks are slidably connected to the left side of the inner cavity of the chutes, one sides of the two sliding blocks, which are opposite to the two connecting plates, connecting blocks are fixedly connected to the left side of the top and the left side of the bottom of the inner surface of the check valve and positioned on the right sides of the connecting plates, springs are fixedly connected to the left side of the connecting blocks, the left side of check valve internal surface just is located the right side fixedly connected with filter screen dish of connecting block, top and the bottom on floater right side all have the movable rod through pivot swing joint, the fixedly connected with dead lever of center department on floater right side, the right side fixedly connected with baffle of dead lever, the equal fixedly connected with installation pole in front side and the rear side on baffle right side, the first brush of right side fixedly connected with of installation pole, one side that the floater was kept away from to the movable rod has the second brush through pivot swing joint, the left side at check valve inner chamber top just is located the vertical fixedly connected with slide bar in left side of filter screen dish, and the left side intercommunication of check valve inner chamber bottom has the honeycomb duct, the bottom threaded connection on honeycomb duct surface has sealed lid.

Preferably, the center of the left side of the threaded disc is fixedly connected with a handle, and the aperture of the filter screen disc is smaller than that of the water inlet mesh.

Preferably, the bottom of the sliding rod penetrates through the bottom of the second brush and is fixedly connected with the bottom of the inner cavity of the check valve, and the surface of the sliding rod is connected with the second brush in a sliding mode.

Preferably, the flange piece is all installed to the both sides of check valve, the right side of second brush and the left side contact of filter screen dish.

Preferably, the right side of the surface of the fixing rod is fixedly connected with a reinforcing rib, and one side, far away from the fixing rod, of the reinforcing rib is fixedly connected with the surface of the guide plate.

Preferably, the top of the sealing cover is fixedly connected with a sealing gasket in the inner cavity of the flow guide pipe, and the outer surface of the sealing gasket is in sealing contact with the inner surface of the flow guide pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the floating ball, the connecting plate, the sliding groove, the sliding block, the connecting block, the spring, the filter screen disc, the movable rod, the fixed rod, the guide plate, the mounting rod, the first brush, the second brush, the sliding rod, the flow guide pipe and the sealing cover are arranged and matched for use, so that the problems that the existing check valve does not have the function of filtering impurities, the impurities are easily blocked in the check valve after the check valve is used for a long time, the damage of the check valve is caused, certain defects exist, the requirements of users cannot be met, and the practicability of the check valve is reduced are solved.

2. According to the utility model, the strength of the contact surface of the fixed rod and the guide plate can be increased by arranging the reinforcing ribs, water can be prevented from seeping out through the sealing cover by arranging the sealing gasket, smaller particles of impurities can be filtered by arranging the filter screen disc with the aperture smaller than that of the water inlet mesh, a user can conveniently rotate the threaded disc by arranging the handle, and the impact force of water flow on the floating ball can be increased by arranging the guide plate and the through hole to be matched for use, so that the floating ball can conveniently move rightwards.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the threaded disk structure of the present invention;

FIG. 3 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 4 is a left side cross-sectional view of the check valve structure of the present invention.

In the figure: 1 check valve, 2 thread plate, 3 water inlet mesh holes, 4 guide plates, 5 through holes, 6 floating balls, 7 connecting plates, 8 sliding grooves, 9 sliding blocks, 10 connecting blocks, 11 springs, 12 filter screen plates, 13 movable rods, 14 fixed rods, 15 guide plates, 16 mounting rods, 17 first brushes, 18 second brushes, 19 sliding rods, 20 guide pipes and 21 sealing covers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The check valve 1, the threaded disc 2, the water inlet mesh 3, the guide plate 4, the through hole 5, the floating ball 6, the connecting plate 7, the sliding groove 8, the sliding block 9, the connecting block 10, the spring 11, the filter screen disc 12, the movable rod 13, the fixed rod 14, the guide plate 15, the mounting rod 16, the first brush 17, the second brush 18, the sliding rod 19, the guide pipe 20, the sealing cover 21 and other parts in the utility model are all universal standard parts or parts known by those skilled in the art, and the structure and principle of the parts can be known by technical manuals or conventional experimental methods.

Referring to fig. 1-4, a filterable check valve includes a check valve 1, flange pieces are installed on both sides of the check valve 1, a threaded disc 2 is connected to the left side of the inner surface of the check valve 1 through threads, a handle is fixedly connected to the center of the left side of the threaded disc 2, the threaded disc 2 can be rotated by a user conveniently by setting the handle, a water inlet mesh 3 is formed on the surface of the threaded disc 2, a flow guide plate 4 is fixedly connected to the inner surface of the check valve 1 and positioned on the right side of the threaded disc 2, a through hole 5 is formed on the right side of the inner cavity of the flow guide plate 4, a floating ball 6 is arranged on the left side of the inner cavity of the check valve 1 and positioned on the right side of the flow guide plate 4, the impact force of water flow on the floating ball 6 can be increased by arranging the flow guide plate 4 and the through hole 5 for use, the floating ball 6 is convenient for moving rightwards, connecting plates 7 are fixedly connected to the top and the bottom of the floating ball 6, chutes 8 are formed on the top and the left sides of the bottom of the inner cavity of the check valve 1, the left side of the inner cavity of the sliding groove 8 is slidably connected with a sliding block 9, one side opposite to the two sliding blocks 9 is fixedly connected with one side opposite to the two connecting plates 7, the left side of the top and the bottom of the inner surface of the check valve 1 is fixedly connected with a connecting block 10 positioned on the right side of the connecting plate 7, the left side of the connecting block 10 is fixedly connected with a spring 11, the left side of the spring 11 is fixedly connected with the right side of the connecting plate 7, the left side of the inner surface of the check valve 1 is fixedly connected with a filter screen disc 12 positioned on the right side of the connecting block 10, the aperture on the filter screen disc 12 is smaller than that on the water inlet mesh 3, small-particle impurities can be filtered by setting the aperture on the filter screen disc 12 to be smaller than that on the water inlet mesh 3, the top and the bottom of the right side of the floating ball 6 are both movably connected with a movable rod 13 through a rotating shaft, the center of the right side of the floating ball 6 is fixedly connected with a fixed rod 14, and the right side of the surface of the fixed rod 14 is fixedly connected with a reinforcing rib, the right side of the fixed rod 14 is fixedly connected with a guide plate 15, one side of the reinforcing rib, which is far away from the fixed rod 14, is fixedly connected with the surface of the guide plate 15, the strength of the contact surface of the fixed rod 14 and the guide plate 15 can be increased by arranging the reinforcing rib, the front side and the rear side of the right side of the guide plate 15 are fixedly connected with an installation rod 16, the right side of the installation rod 16 is fixedly connected with a first brush 17, one side of the movable rod 13, which is far away from the floating ball 6, is movably connected with a second brush 18 through a rotating shaft, the right side of the second brush 18 is contacted with the left side of the filter screen disc 12, the left side of the top of the inner cavity of the check valve 1 is vertically and fixedly connected with a sliding rod 19, the bottom of the sliding rod 19 penetrates through to the bottom of the second brush 18 and is fixedly connected with the bottom of the inner cavity of the check valve 1, the surface of the sliding rod 19 is connected with the joint of the second brush 18, and the left side of the bottom of the inner cavity of the check valve 1 is communicated with a guide pipe 20, the bottom of the surface of the draft tube 20 is in threaded connection with a sealing cover 21, the top of the sealing cover 21 is fixedly connected with a sealing gasket in the inner cavity of the draft tube 20, the outer surface of the sealing gasket is in sealing contact with the inner surface of the draft tube 20, by arranging the sealing gasket, water can be prevented from seeping out through the sealing cover 21, and by arranging the floating ball 6, the connecting plate 7, the sliding groove 8, the sliding block 9, the connecting block 10, the spring 11, the filter screen disc 12, the movable rod 13, the fixed rod 14, the guide plate 15, the mounting rod 16, the first hairbrush 17, the second hairbrush 18, the sliding rod 19, the flow guide pipe 20 and the sealing cover 21 to be matched for use, the problem that the existing check valve does not have the function of filtering impurities is solved, the check valve is easy to cause the impurities to be blocked in the check valve after being used for a long time, thereby cause the damage of check valve, have certain drawback, can't satisfy user's demand, reduced the problem of check valve practicality.

When the check valve 1 is used, a user installs the check valve 1 at a proper position through a flange plate, water enters the check valve 1 through the left side of the check valve 1, impurities entering water in the check valve 1 are filtered under the action of the water inlet mesh 3 and the filter screen disc 12, when the filter screen disc 12 is cleaned, the user firstly rotates the sealing cover 21 reversely, the sealing cover 21 rotates out to be separated from the draft tube 20, then the check valve 1 is controlled to be opened for a certain time and then closed, the check valve 1 is opened to enable water flow to enter the guide plate 4 through the left side of the check valve 1, the water in the guide plate 4 enters the right side of the water inlet mesh 3 in the check valve 1 through the through hole 5, when the water enters the right side of the water inlet mesh 3 in the check valve 1, the water impacts the floating ball 6 to enable the floating ball 6 to drive the connecting plate 7 and the sliding block 9 to move to the right, slider 9 moves to the right and makes spout 8 compressed, and floater 6 moves to the right simultaneously and drives movable rod 13 and dead lever 14 move to the right, and movable rod 13 moves to the right and drives second brush 18 and move outward, and second brush 18 moves outward and clears up filter screen disc 12, and dead lever 14 moves to the right simultaneously and finally drives first brush 17 and moves to the right, and first brush 17 moves to the right and clears up filter screen disc 12 with filter screen disc 12 contact, and finally the impurity and the water of being cleared up on filter screen disc 12 flow through honeycomb duct 20, finally accomplish the clearance to filter screen disc 12.

In summary, the following steps: this filterable check valve, through setting up the floater 6, the connecting plate 7, spout 8, slider 9, connecting block 10, spring 11, filter screen dish 12, movable rod 13, the dead lever 14, baffle 15, installation pole 16, first brush 17, second brush 18, slide bar 19, honeycomb duct 20 and sealed lid 21 cooperation are used, the function that current check valve does not have filtering impurity has been solved, use the check valve for a long time and easily lead to impurity blocking up in the check valve, thereby cause the damage of check valve, there is certain drawback, can't satisfy user's demand, the problem of check valve practicality has been reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A filterable check valve, comprising a check valve (1), characterized in that: the left side threaded connection of check valve (1) internal surface has threaded disc (2), inlet mesh (3) have been seted up on the surface of threaded disc (2), the internal surface of check valve (1) just is located right side fixedly connected with guide plate (4) of threaded disc (2), through-hole (5) have been seted up on the right side of guide plate (4) inner chamber, the left side of check valve (1) inner chamber and the right side that is located guide plate (4) are provided with floater (6), the top and the equal fixedly connected with connecting plate (7) in bottom of floater (6), spout (8) have all been seted up in the left side of check valve (1) inner chamber top and bottom, the left side sliding connection of spout (8) inner chamber has slider (9), one side fixed connection that two sliders (9) are relative and two connecting plates (7) are opposite, the left side of check valve (1) internal surface top and bottom just is located the right side fixedly connected with connecting block (10) of connecting plate (7) in the left side of connecting plate (10) ) The utility model discloses a floating ball's (6) is kept away from in the center of floater (6) and is located the right side fixedly connected with filter screen dish (12) of connecting block (10), the left side fixedly connected with spring (11) of spring (11) and the right side fixed connection of connecting plate (7), the left side of check valve (1) internal surface and the right side fixedly connected with filter screen dish (12) that are located connecting block (10), top and the bottom on floater (6) right side all have movable rod (13) through pivot swing joint, fixedly connected with dead lever (14) are located to the center on floater (6) right side, the right side fixedly connected with baffle (15) of dead lever (14), the equal fixedly connected with installation pole (16) in front side and the rear side on baffle (15) right side, the first brush (17) of right side fixedly connected with of installation pole (16), one side that floater (6) were kept away from in movable rod (13) has second brush (18) through pivot swing joint, the left side at check valve (1) inner chamber top just is located the vertical fixedly connected with in left side of filter screen dish (12) The left side of the bottom of the inner cavity of the check valve (1) is communicated with a guide pipe (20), and the bottom of the surface of the guide pipe (20) is in threaded connection with a sealing cover (21).

2. A filterable check valve according to claim 1, wherein: fixedly connected with handle is located in the left center of threaded disc (2), aperture on filter screen dish (12) is less than the aperture on the mesh of intaking (3).

3. A filterable check valve according to claim 1, wherein: the bottom of the sliding rod (19) penetrates through the bottom of the second brush (18) and is fixedly connected with the bottom of the inner cavity of the check valve (1), and the surface of the sliding rod (19) is connected with the second brush (18) in a sliding mode.

4. A filterable check valve according to claim 1, wherein: the flange pieces are installed on two sides of the check valve (1), and the right side of the second brush (18) is in contact with the left side of the filter screen disc (12).

5. A filterable check valve according to claim 1, wherein: the right side of the surface of the fixed rod (14) is fixedly connected with a reinforcing rib, and one side, far away from the fixed rod (14), of the reinforcing rib is fixedly connected with the surface of the guide plate (15).

6. A filterable check valve according to claim 1, wherein: the top of the sealing cover (21) is fixedly connected with a sealing gasket in the inner cavity of the draft tube (20), and the outer surface of the sealing gasket is in sealing contact with the inner surface of the draft tube (20).