CN210770322U

CN210770322U - Check valve suitable for self priming pump

Info

Publication number: CN210770322U
Application number: CN201921830033.3U
Authority: CN
Inventors: 孙乃东
Original assignee: Zibo Dongyi Environmental Protection Technology Co ltd
Current assignee: Zibo Dongyi Environmental Protection Technology Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-16
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a check valve suitable for self-priming pump, including the valve pipe, the upper surface of valve pipe is equipped with the square bulge, through the bolt fixedly connected with square lid in the square bulge, the lower extreme surface of square lid is equipped with articulated seat, articulated in the articulated seat have articulated piece, the articulated department in upper end of articulated piece has cup jointed the torsional spring, the both ends of torsional spring are fixed connection respectively in articulated seat and articulated piece, the lower extreme rear side surface of articulated piece is fixedly connected with the valve block, the valve block adopts toper circle block structure, the inboard surface of valve pipe is equipped with trapezoidal ring arch, the valve block rear end surface is blocked at the inboard surface of the front end of trapezoidal ring arch through the torsional force extrusion of torsional spring, through the valve block of articulated toper circle block structure of articulated seat, can carry out the location upset, can not be inaccurate, can improve sealing performance, through installing the valve block structure in inserting the square bulge, the external assembly and disassembly are convenient, and the maintenance and the replacement are convenient.

Description

Check valve suitable for self priming pump

Technical Field

The utility model relates to a check valve field, more specifically says, relates to a check valve suitable for self priming pump.

Background

The check valve is a valve with a round valve clack and acts by self weight and medium pressure to block the medium from flowing backwards;

check valve on the self priming pump adopts circular valve gap to block up the sealed upper and lower chucking of influent stream mouth through the valve block that rebounds through the spring more, but the spring is unstable structure when using, shakes easily when using for a long time and leads to the inaccurate feed inlet of valve block card, and its sealing performance is low, is mostly built-in structure simultaneously, the installation and the dismantlement of the valve block mechanism of being not convenient for, inconvenience during the maintenance.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a check valve suitable for self priming pump, through the valve block of articulated toper circle piece structure of articulated seat, twist reverse the valve block through the side torsion of torsional spring and plug up the protruding front end of trapezoidal ring to articulated seat is articulated to be fixed a position the upset, can not be to inaccurate, can improve sealing performance, through installing the valve block structure in the injection side tang, the external assembly and the dismantlement of being convenient for are convenient for maintain the change.

In order to solve the above problems, the utility model adopts the following technical proposal.

A check valve suitable for a self-priming pump comprises a valve tube, wherein a square convex opening is formed in the upper surface of the valve tube, a square cover is fixedly connected in the square convex opening through a bolt, a hinge seat is formed in the surface of the lower end of the square cover, a hinge block is hinged in the hinge seat, a torsion spring is sleeved at the hinge position of the upper end of the hinge block, two ends of the torsion spring are fixedly connected in the hinge seat and the hinge block respectively, a valve block is fixedly connected to the rear side surface of the lower end of the hinge block, a conical round block structure is adopted by the valve block, a trapezoidal ring bulge is arranged on the inner side surface of the valve tube, the rear end surface of the valve block is clamped on the inner side surface of the front end of the trapezoidal ring bulge through the extrusion of the torsion force of the torsion spring, the valve block is blocked by the side torsion force of the torsion spring through the hinge seat, and the hinge seat, can improve sealing performance, through the installation valve block structure in the square flange of injecting, the outside assembly and the dismantlement of being convenient for, the maintenance of being convenient for is changed.

Furthermore, the rubber layer covers the outer surface of the rear end of the valve plate, and sealing performance is improved when the valve plate is clamped and blocked.

Furthermore, a square ring rubber pad is placed in the square convex opening, and the sealing performance is improved after the square cover is installed.

Furthermore, the bolt adopts hexagon socket head cap screw, and the bolt upper end is embedded in the upper end circular slot of square cover, and the surface is flat, does not have the protrusion, and the outside is pleasing to the eye.

Furthermore, the trapezoidal ring protrusion of the valve tube adopts a double-sided trapezoidal ring structure, the left end can be connected with the valve plate in a matched mode, the rear end can guide water flow, and meanwhile, the water flow impact force can be improved in a closing-up state.

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

(1) through the valve block of articulated toper circle piece structure of articulated seat, twist reverse the valve block through the side torsion of torsional spring and plug up the protruding front end of trapezoidal ring to articulated seat is articulated can fix a position the upset, can not be to inaccurate, can improve sealing performance, through installing the valve block structure in injecting the side tang, the outside assembly and the dismantlement of being convenient for, the maintenance of being convenient for is changed.

(2) The rubber layer covers on the outer surface of the rear end of the valve plate, and when the valve plate is clamped and plugged, the sealing performance is improved.

(3) A square ring rubber pad is arranged in the square convex opening, and the sealing performance is improved after the square cover is installed.

(4) The bolt adopts hexagon socket head cap screw, and the upper end of bolt is embedded in the upper end circular slot of square lid, and the surface is flat, does not have the protrusion, and the outside is pleasing to the eye.

(5) The trapezoidal ring protrusion of valve pipe adopts two-sided trapezoidal ring structure, and the left end can be connected with the valve block cooperation, and the rear end can guide rivers, is the binding off state simultaneously, can improve rivers impact force.

Drawings

Fig. 1 is a schematic overall structural view (section) of the present invention;

fig. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a right end side view of the overall structure of the present invention;

FIG. 4 is a left side sectional view of the connection relationship between the hinge block and the hinge seat and the valve plate of the present invention;

fig. 5 is a right end side view of the valve plate local structure of the present invention.

The reference numbers in the figures illustrate:

the valve comprises a valve pipe 1, a square convex opening 2, a bolt 3, a square cover 4, a hinge seat 5, a hinge block 6, a torsion spring 60, a valve plate 7, a trapezoid ring bulge 8, a torsion spring 60, a rubber layer 70 and a square ring rubber pad 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1-5, a check valve suitable for a self-priming pump, comprising a valve tube 1, wherein a square convex port 2 is arranged on the upper surface of the valve tube 1, a square cover 4 is fixedly connected in the square convex port 2 through a bolt 3, a hinged seat 5 is arranged on the lower end surface of the square cover 4, a hinged block 6 is hinged in the hinged seat 5, a torsion spring 60 is sleeved at the hinged position of the upper end of the hinged block 6, two ends of the torsion spring 60 are respectively and fixedly connected in the hinged seat 5 and the hinged block 6, a valve plate 7 is fixedly connected to the lower end rear side surface of the hinged block 6, the valve plate 7 adopts a conical round block structure, a trapezoidal ring protrusion 8 is arranged on the inner side surface of the inner side of the trapezoidal ring protrusion 8, and the rear end surface of the valve plate 7 is clamped on.

Referring to fig. 1-5, the rubber layer 70 covers the outer surface of the rear end of the valve plate 7, when the valve plate 7 is clamped and sealed, the sealing performance is improved, the square-ring rubber gasket 20 is placed in the square convex opening 2, the sealing performance is improved after the square cover 4 is installed, the bolt 3 is an inner hexagon bolt, the upper end of the bolt 3 is embedded in a circular groove (not shown) at the upper end of the square cover 4, the surface is flat, no protrusion exists, the exterior is attractive, the trapezoidal ring protrusion 8 of the valve tube 1 is of a double-sided trapezoidal ring structure, the left end can be connected with the valve plate 7 in a matched mode, the rear end can guide water flow, and meanwhile, in a closing state, the impact.

When in use, a square convex opening 2 is arranged on the upper surface of a valve pipe 1, a square cover 4 is fixedly connected in the square convex opening 2 through a bolt 3, a hinge block 6 is hinged on the lower surface of the square cover 4 through a hinge seat 5, a valve plate 7 is fixedly connected on the rear side surface of the lower end of the hinge block 6, the valve plate 7 adopts a conical round block structure, a torsional spring 60 is arranged outside the hinge block 6, the rear end surface of the valve plate 7 is extruded and clamped on the inner side surface of the front end of a ladder-shaped ring bulge 8 through the torsional force of the torsional spring 60, when water flows into the valve pipe 1, the valve plate 7 can be pushed open through impacting the valve plate 7, the water flows, when the water flow stops, the valve plate 7 is driven to be turned back to block the front end of the ladder-shaped ring bulge 8 through the torsional force of the torsional spring 60, a rubber layer 70 is arranged for sealing, the sealing performance is improved, when the valve pipe is turned, sealing is improved;

directly inject in the square flange 2 through valve block 7 mechanism, fix through 3 installation square covers 4 of bolt, the outside assembly and the dismantlement of being convenient for, the maintenance of being convenient for is changed.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. A check valve suitable for self priming pump, includes valve tube (1), its characterized in that: the upper surface of valve pipe (1) is equipped with square bead (2), through bolt (3) fixedly connected with square lid (4) in square bead (2), the lower extreme surface of square lid (4) is equipped with articulated seat (5), articulated in articulated seat (5) have articulated piece (6), torsional spring (60) have been cup jointed to the articulated department in upper end of articulated piece (6), the both ends of torsional spring (60) are fixed connection respectively in articulated seat (5) and articulated piece (6), the lower extreme rear side surface fixedly connected with valve block (7) of articulated piece (6), valve block (7) adopt toper circle block structure, the interior side surface of valve pipe (1) is equipped with trapezoidal ring arch (8), valve block (7) rear end surface extrudees the front end interior side surface of trapezoidal ring arch (8) through the torsional spring (60) torsional force extrusion card.

2. The check valve adapted for use in a self-primer pump of claim 1, wherein: and a rubber layer (70) is coated on the outer surface of the rear end of the valve plate (7).

3. The check valve adapted for use in a self-primer pump of claim 1, wherein: a square ring rubber pad (20) is arranged in the square convex opening (2).

4. The check valve adapted for use in a self-primer pump of claim 1, wherein: the bolt (3) adopts an inner hexagon bolt, and the upper end of the bolt (3) is embedded in the upper end circular groove of the square cover (4).

5. The check valve adapted for use in a self-primer pump of claim 1, wherein: the ladder-shaped ring bulge (8) of the valve pipe (1) adopts a double-sided ladder-shaped ring structure.