CN215568197U

CN215568197U - Swing check valve

Info

Publication number: CN215568197U
Application number: CN202121890919.4U
Authority: CN
Inventors: 吴雪莲
Original assignee: Jiangsu Qianghong Valve Co ltd
Current assignee: Jiangsu Qianghong Valve Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-18
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a swing check valve which comprises a protection mechanism and a filtering mechanism, wherein the protection mechanism comprises a check valve body, a connector, a first telescopic rod and a first spring, the check valve body is fixedly connected with a connecting flange, the check valve body is fixedly connected with a valve top cover, the connector is in threaded connection with the valve top cover, the connector is in threaded connection with a connecting screw rod, the connecting screw rod is fixedly connected with a protective cover, the first telescopic rod is fixedly connected with the protective cover, the first telescopic rod is fixedly connected with a first connecting plate, the first spring is fixedly connected with the protective cover, the first spring is fixedly connected with a first connecting plate, the first connecting plate is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with a protective ceiling. Restore deformation through No. two telescopic links and No. two springs and promote the inserted bar, this moment the inserted bar pegs graft with the filtration pore on filter surface, clears up the impurity in the filtration pore, avoids the filtration pore jam on filter surface.

Description

Swing check valve

Technical Field

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

Background

The check valve is a valve whose opening and closing part is a circular valve clack and acts by self weight and medium pressure to block medium backflow, belonging to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve, the valve clack motion mode is divided into lifting type and swing type, the lifting type check valve is similar to the structure of the stop valve, only lacks a valve rod for driving the valve clack, the medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side).

Traditional check valve lacks protection machanism, leads to the valve body to receive external environmental impact easily when using to lead to the valve body to damage and ageing with higher speed, and most check valves lack the filtration measure, can't filter the impurity in the flow medium. Therefore, a swing check valve is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a swing check valve for solve prior art and stop the check valve and lack protection machanism, lead to the valve body to receive external environmental impact easily when using and lead to the valve body to damage and ageing with higher speed, and most check valves lack the filtration measure, can't filter the problem to the impurity in the flowing medium.

According to one aspect of the utility model, the swing check valve comprises a protection mechanism and a filtering mechanism, wherein the protection mechanism comprises a check valve body, a connector, a first telescopic rod and a first spring, the check valve body is fixedly connected with a connecting flange, the check valve body is fixedly connected with a valve top cover, the connector is in threaded connection with the valve top cover, the connector is in threaded connection with a connecting screw, the connecting screw is fixedly connected with a protective cover, the first telescopic rod is fixedly connected with the protective cover, the first telescopic rod is fixedly connected with a first connecting plate, the first spring is fixedly connected with the protective cover, the first spring is fixedly connected with a first connecting plate, the first connecting plate is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with a protective ceiling;

The filter mechanism comprises a filter plate, a sliding groove, a second telescopic rod, a second spring and a second connecting plate, the filter plate is fixedly connected with the check valve body, the sliding groove is slidably connected with the sliding block, the second telescopic rod is fixedly connected with the sliding groove, the second telescopic rod is fixedly connected with the sliding block, the second spring is fixedly connected with the sliding groove, the second spring is fixedly connected with the sliding block, and the second connecting plate is fixedly connected with the sliding block.

Further, the valve top cover is fixedly connected with the check valve body through connecting bolts, a plurality of connecting bolts are arranged on the surface of the valve top cover, the connecting bolts are evenly distributed on the surface of the valve top cover in an annular mode, and a sealing ring is arranged between the valve top cover and the check valve body.

Further, the protection casing surface is provided with a plurality of telescopic links, and is a plurality of telescopic link evenly distributed is on the protection casing surface, and a telescopic link is located inside a spring.

Furthermore, a plurality of bracing pieces are arranged on the surface of the first connecting plate, and the bracing pieces are annularly distributed on the surface of the first connecting plate.

Further, the internal surface of the check valve body is provided with two sliding grooves, and the two sliding grooves are symmetrically distributed on the internal surface of the check valve body.

Furthermore, No. two connecting plate surfaces are provided with a plurality of inserted bars, inserted bar evenly distributed is on No. two connecting plate surfaces, and the inserted bar is with the filtration pore one-to-one on filter surface, and the inserted bar is pegged graft with the jack on filter surface.

According to the embodiment of the utility model, the check valve body is protected by the protection mechanism, the check valve body is prevented from being damaged in the use process, the aging speed of the check valve body is reduced, and the filtering performance of the check valve body is improved by filtering impurities in the medium by the filtering mechanism.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to an embodiment of the present invention;

fig. 4 is a schematic front view of a second connecting plate according to an embodiment of the present invention.

In the figure: 1. check valve body, 2, flange, 3, protection casing, 4, protection ceiling, 5, connector, 6, connecting screw, 7, telescopic link, 8, a spring, 9, a connecting plate, 10, bracing piece, 11, valve top cap, 12, sealing washer, 13, connecting bolt, 14, No. two connecting plates, 15, inserted bar, 16, filter, 17, spout, 18, slider, 19, No. two telescopic links, 20, No. two springs.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The protection mechanism in the present embodiment may be applied to various check valve devices, for example, a swing check valve is provided in the present embodiment, and the protection mechanism in the present embodiment may be used to protect the check valve.

A swing check valve comprises a check valve body, a limiting groove, a valve, a rotating shaft, a bevel gear, a connecting rod, a water wheel, a filter screen, a vertical rod, a brush, a limiting rod, a collecting frame, a knob, a handle and a valve cover, wherein the limiting groove is arranged at the bottom of the inner side of the check valve body, the valve is movably hinged at the left side inside the check valve body, and the right side bearing in the check valve body is connected with a rotating shaft, a conical gear is fixed on the outer side of the middle of the rotating shaft, a connecting rod is fixed at the left end of the conical gear, a water wheel is welded at the left end of the connecting rod, a vertical rod is connected with the outer side of the connecting rod through a screw, a brush is fixed on the right side of the vertical rod, a limiting rod is clamped at the bottom of the inner side of the check valve body, a collecting frame is arranged on the outer side of the limiting rod, a knob is welded at the upper end of the limiting rod, and collect frame outside top screwed connection and have the handle, the valve gap is installed on check valve body top simultaneously. The spacing groove is "T" word shape, and spacing groove and gag lever post are the block structure, and the design of above-mentioned structure for the gag lever post can effectually be fixed at the spacing inslot side, has increased the steadiness. Pivot and connecting rod mutually perpendicular, and connecting rod outside bearing is connected with the filter screen to the filter screen is the loop configuration, the design of above-mentioned structure for the filter screen is effectual to liquid impurity filters, has increased the usability. The brush equidistance distributes on the right side of montant, and the brush right side contacts with the filter screen left side, and the design of above-mentioned structure when the montant drives the brush rotation for the effectual filter screen of clearing up of brush has avoided the filter screen to produce the phenomenon of jam in long-term use. The gag lever post runs through in collecting the frame, and the gag lever post is connected for the bearing with collecting the frame to collect the frame and be the slope form, the design of above-mentioned structure makes the filter screen collect by the effectual frame of collecting of impurity that the brush was brushed off, has increased the convenience.

Of course, the present embodiment may also be used to provide service to other check valve devices. Here, a description will be given below of a swing check valve according to an embodiment of the present invention.

Referring to fig. 1-4, a swing check valve includes a protection mechanism and a filtering mechanism, the protection mechanism comprises a check valve body 1, a connector 5, a first telescopic rod 7 and a first spring 8, the check valve body 1 is fixedly connected with a connecting flange 2, the check valve body 1 is fixedly connected with the valve top cover 11, the connector 5 is connected with the valve top cover 11, the connector 5 is in threaded connection with the connecting screw 6, the connecting screw 6 is fixedly connected with the protective cover 3, the first telescopic rod 7 is fixedly connected with the protective cover 3, the first telescopic rod 7 is fixedly connected with the first connecting plate 9, the first spring 8 is fixedly connected with the protective cover 3, the first spring 8 is fixedly connected with the first connecting plate 9, the first connecting plate 9 is fixedly connected with the supporting rod 10, and the supporting rod 10 is fixedly connected with the protective ceiling 4;

filtering mechanism includes filter 16, spout 17, No. two telescopic links 19, No. two springs 20 and No. two connecting plates 14,

filter

16 and 1 fixed connection of check valve body,

spout

17 and 1 fixed connection of check valve body, and

spout

17 and 18 sliding connection of slider, No. two telescopic links 19 and spout 17 fixed connection, and No. two

telescopic links

19 and 18 fixed connection of slider, No. two

springs

20 and 17 fixed connection, and No. two

springs

20 and 18 fixed connection of slider, No. two connecting

plates

14 and 18 fixed connection protect check valve body 1 through protection mechanism, avoid it to take place to damage in the use, reduce its ageing rate simultaneously, filter the impurity in the medium through filtering mechanism, increase check valve body 1's filtering quality.

The valve top cover 11 is fixedly connected with the check valve body 1 through connecting bolts 13, a plurality of connecting bolts 13 are arranged on the surface of the valve top cover 11, the connecting bolts 13 are annularly and uniformly distributed on the surface of the valve top cover 11, a sealing ring 12 is arranged between the valve top cover 11 and the check valve body 1, a plurality of first telescopic rods 7 are arranged on the surface of the protective cover 3, the plurality of first telescopic rods 7 are uniformly distributed on the surface of the protective cover 3, the first telescopic rods 7 are positioned inside the first springs 8, a plurality of supporting rods 10 are arranged on the surface of the first connecting plate 9, the plurality of supporting rods 10 are annularly distributed on the surface of the first connecting plate 9, two sliding grooves 17 are arranged on the inner surface of the check valve body 1, the two sliding grooves 17 are symmetrically distributed on the inner surface of the check valve body 1, and a plurality of inserting rods 15 are arranged on the surface of the second connecting plate 14, the inserted bars 15 are uniformly distributed on the surface of the second connecting plate 14, the inserted bars 15 correspond to the filter holes on the surface of the filter plate 16 one by one, and the inserted bars 15 are inserted into the insertion holes on the surface of the filter plate 16.

When the utility model is used, the top of the check valve body 1 is protected by the protective ceiling 4, the check valve body 1 is prevented from being injured by falling of external objects, the external objects fall to the surface of the protective ceiling 4, the impact force is transmitted to the first telescopic rod 7 and the first spring 8 through the protective ceiling 4, the impact force is absorbed through the telescopic deformation of the first telescopic rod 7 and the first spring 8, the check valve body 1 is fully protected, the top of the check valve body 1 is protected against water through the protective cover 3, the contact between rainwater and the surface of the valve top cover 11 is avoided, and the accelerated aging of parts such as the valve top cover 11, the connecting bolt 13 and the like is caused, the connecting bolt 6 is in threaded connection with the connecting head 5, the installation and the disassembly of the protective mechanism are convenient, the circulating medium is filtered through the filter plate 16 when the check valve body 1 is used, and when the medium flows, the inserted bar 15 is ejected from the surface of the filter plate 16 by the pressure of medium flow, the second spring 20 and the second telescopic rod 19 are in a compression state at the moment, the sliding block 18 slides along the sliding groove 17, the stability of one end of the second connecting plate 14 is ensured, the check valve body 1 is closed when the medium does not flow, the inserted bar 15 is pushed by restoring deformation through the second telescopic rod 19 and the second spring 20, the inserted bar 15 is plugged with the filter hole in the surface of the filter plate 16 at the moment, impurities in the filter hole are cleaned, and the filter hole blockage in the surface of the filter plate 16 is avoided.

The utility model has the advantages that:

1. the top of the check valve body is protected through the protective ceiling, the check valve body is prevented from being injured by external objects due to falling, the external objects fall onto the surface of the protective ceiling, the impact force is transmitted to the first telescopic rod and the first spring through the protective ceiling, the impact force is absorbed through the telescopic deformation of the first telescopic rod and the first spring, the check valve body is fully protected, the top of the check valve body is protected from water through the protective cover, rainwater is prevented from contacting the surface of the valve top cover, accelerated aging of components such as the valve top cover and a connecting bolt is avoided, and the connecting screw is in threaded connection with the connector, so that the protective mechanism is convenient to install and disassemble;

2. the filter plate is reasonable in structure, circulating media are filtered through the filter plate, when the media flow, the inserted rod is ejected out of the surface of the filter plate by the flowing pressure of the media, the second spring and the second telescopic rod are in a compressed state at the moment, the second spring and the second telescopic rod slide along the sliding groove through the sliding block, the stability of one end of the second connecting plate is guaranteed, when the media do not flow, the return valve body is closed, the inserted rod is pushed by the second telescopic rod and the second spring after being restored to deform, the inserted rod is inserted into the filter holes in the surface of the filter plate, impurities in the filter holes are cleaned, and the filter holes in the surface of the filter plate are prevented from being blocked.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A swing check valve characterized in that: comprises a protection mechanism and a filtering mechanism, wherein the protection mechanism comprises a check valve body (1), a connector (5), a first telescopic rod (7) and a first spring (8), the check valve body (1) is fixedly connected with a connecting flange (2), the check valve body (1) is fixedly connected with a valve top cover (11), the connector (5) is connected with the valve top cover (11), the connector (5) is in threaded connection with a connecting screw (6), the connecting screw (6) is fixedly connected with a protective cover (3), the first telescopic rod (7) is fixedly connected with the protective cover (3), the first telescopic rod (7) is fixedly connected with a first connecting plate (9), the first spring (8) is fixedly connected with the protective cover (3), the first spring (8) is fixedly connected with the first connecting plate (9), the first connecting plate (9) is fixedly connected with a support rod (10), the supporting rod (10) is fixedly connected with the protective ceiling (4);

Filter mechanism includes filter (16), spout (17), No. two telescopic links (19), No. two springs (20) and No. two connecting plates (14), filter (16) and check valve body (1) fixed connection, spout (17) and check valve body (1) fixed connection, and spout (17) and slider (18) sliding connection, No. two telescopic links (19) and spout (17) fixed connection, and No. two telescopic links (19) and slider (18) fixed connection, No. two springs (20) and spout (17) fixed connection, and No. two springs (20) and slider (18) fixed connection, No. two connecting plates (14) and slider (18) fixed connection.

2. A swing check valve as claimed in claim 1, wherein: valve top cap (11) pass through connecting bolt (13) and check valve body (1) fixed connection, and valve top cap (11) surface is provided with a plurality of connecting bolt (13), connecting bolt (13) are annular evenly distributed on valve top cap (11) surface, be provided with sealing washer (12) between valve top cap (11) and check valve body (1).

3. A swing check valve as claimed in claim 1, wherein: protection casing (3) surface is provided with a plurality of telescopic link (7), and is a plurality of telescopic link (7) evenly distributed is on protection casing (3) surface, and inside telescopic link (7) are located spring (8).

4. A swing check valve as claimed in claim 1, wherein: a plurality of supporting rods (10) are arranged on the surface of the first connecting plate (9), and the supporting rods (10) are annularly distributed on the surface of the first connecting plate (9).

5. A swing check valve as claimed in claim 1, wherein: the check valve is characterized in that two sliding grooves (17) are formed in the inner surface of the check valve body (1), and the two sliding grooves (17) are symmetrically distributed in the inner surface of the check valve body (1).

6. A swing check valve as claimed in claim 1, wherein: no. two connecting plate (14) surfaces are provided with a plurality of inserted bars (15), inserted bar (15) evenly distributed is on No. two connecting plate (14) surfaces, and inserted bar (15) and filter hole one-to-one on filter (16) surface, and inserted bar (15) are pegged graft with the jack on filter (16) surface.