CN210178998U

CN210178998U - Swing check valve

Info

Publication number: CN210178998U
Application number: CN201920828707.XU
Authority: CN
Inventors: Inventor Has Waived The Right To Be Mentioned The; 不公告发明人
Original assignee: Jiujiang Dechang Hardware Electromechanical Co Ltd
Current assignee: Jiujiang Dechang Hardware Electromechanical Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-03-24
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a swing check valve, which comprises a check valve main body, wherein a fixed ring is fixedly arranged on the left side of the inner side wall of the check valve main body, a fixed shaft is fixedly arranged on the inner side wall of the check valve main body, a rotating plate is sleeved on the outer side wall of the fixed shaft, a connecting plate is fixedly arranged on the lower side wall of the rotating plate, a plugging plate is fixedly arranged on the left side wall of the connecting plate, and an auxiliary rotating device is arranged on the lower side wall of the plugging plate in a sliding way, so that the utility model drives the plugging plate to rotate under the action of medium flow to realize the circulation, and the joint of the plugging plate and the fixing ring can increase the sealing performance, and in addition, under the structural action of the auxiliary rotating device, when the medium reflows to drive the plugging plate to plug, the contact area between the plugging plate and the reflowing medium is increased, the rotating speed of plugging by the plugging plate is increased, and the backflow outflow quantity of the medium is greatly reduced.

Description

Swing check valve

Technical Field

The utility model relates to a check valve technical field specifically is a swing check valve.

Background

The check valve belongs to the automatic valve class, which is a valve which is automatically opened or closed by medium flow and force to prevent medium backflow, and is mainly used on a pipeline with unidirectional medium flow, only allows the medium to flow towards one direction to prevent accidents.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a swing check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a swing check valve, includes the check valve main part, the inside wall left side fixed mounting of check valve main part has solid fixed ring, the inside wall fixed mounting of check valve main part has the fixed axle, the rotor plate has been cup jointed to the lateral wall of fixed axle, the lower lateral wall fixed mounting of rotor plate has the connecting plate, the left side wall fixed mounting of connecting plate has the shutoff board, and the left side wall laminating of shutoff board in solid fixed ring's right side wall, the lower lateral wall sliding of shutoff board is equipped with supplementary slewer.

Preferably, the auxiliary rotating device comprises a movable plate, a groove body is formed in the lower side wall of the movable plate, a rectangular groove is formed in the upper side wall of the movable plate, a baffle is fixedly mounted on the inner side wall of the rectangular groove, a sliding groove is formed in the upper side wall of the baffle, a connecting block is fixedly mounted on the lower side wall of the blocking plate and is inserted into the sliding groove, a sliding block is fixedly mounted on the lower side wall of the connecting block and is inserted into the rectangular groove.

Preferably, the right side wall of the fixing ring is uniformly provided with clamping grooves, the left side wall of the plugging plate is uniformly and fixedly provided with clamping blocks, and the clamping blocks are inserted into the clamping grooves.

Preferably, a rubber pad is fixedly mounted at the upper right end of the inner cavity of the check valve main body.

Preferably, a buffer ring is fixedly installed between the inner side wall of the check valve body and the left side wall of the fixing ring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a check valve main part, fixed pipe, the fixed axle, the rotor plate, the structure of connecting plate and shutoff board, under the effect that the medium flows, it rotates to drive the shutoff board, realize the circulation of this check valve and close, and the laminating of shutoff board and solid fixed ring can increase the leakproofness, in addition under supplementary slewer's structural action, drive the shutoff board shutoff in-process when the medium backward flow, increase the area of contact of shutoff board department with the medium of backward flow, increase the slew velocity of shutoff board shutoff, the volume that greatly reduced medium backward flow flows out.

Drawings

Fig. 1 is a front sectional view of the utility model for plugging.

Fig. 2 is a front sectional view of the utility model during circulation.

Fig. 3 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. the check valve comprises a check valve body, 2, a fixing ring, 3, a fixing shaft, 4, a rotating plate, 5, a connecting plate, 6, a blocking plate, 7, an auxiliary rotating device, 71, a movable plate, 72, a groove body, 73, a rectangular groove, 74, a baffle, 75, a sliding groove, 8, a connecting block, 9, a sliding block, 10, a clamping groove, 11, a clamping block, 12, a rubber pad, 13 and a buffer ring.

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.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a swing check valve comprises a check valve main body 1, a fixed ring 2 is fixedly installed on the left side of the inner side wall of the check valve main body 1, the fixed ring 2 is made of rubber, when a plugging plate 6 is attached to the fixed ring 2, the sealing performance between the plugging plate 6 and the fixed ring 2 is improved, medium backflow is avoided, the check valve is in a plugging state at the moment, a fixed shaft 3 is fixedly installed on the inner side wall of the check valve main body 1, a rotating plate 4 is sleeved on the outer side wall of the fixed shaft 3, the rotating plate 4 can rotate along the fixed shaft 3, a connecting plate 5 is fixedly installed on the lower side wall of the rotating plate 4, the strength of the plugging plate 6 is improved by the connecting plate 5, a plugging plate 6 is fixedly installed on the left side wall of the connecting plate 5, the connecting plate 5 and the plugging plate 6 are driven to rotate when the rotating plate 4 rotates, the left side wall of the plugging plate 6, supplementary slewer 7 can be at the lower extreme lateral shifting of shutoff board 6, when the medium circulation, supplementary slewer 7 can be in the state shown in figure 2, consequently when the medium stops, shutoff board 6 is in can rotate to the solid fixed ring 2's of laminating state under the action of gravity, realize the shutoff, if when the backward flow state appears in the medium, supplementary slewer 7's structure has increased the area that shutoff board 6 and medium contacted, and then increased the speed of 6 departments of shutoff board gyration, supplementary slewer 7 can block the medium of backward flow simultaneously, greatly reduced the backward flow and the volume of the medium that passes through, make the completion non return work that this check valve can be better.

Specifically, the auxiliary rotating device 7 includes a movable plate 71, a groove body 72 is formed in a lower side wall of the movable plate 71, the groove body 72 is a groove with an arc surface, the contact area between the groove body 72 and a medium during backflow is increased, a rectangular groove 73 is formed in an upper side wall of the movable plate 71, a baffle 74 is fixedly mounted on an inner side wall of the rectangular groove 73, a sliding groove 75 is formed in an upper side wall of the baffle 74, a connecting block 8 is fixedly mounted on a lower side wall of the blocking plate 6, the connecting block 8 is inserted into the sliding groove 75, a slider 9 is fixedly mounted on a lower side wall of the connecting block 8, the slider 9 is inserted into the rectangular groove 73, and the auxiliary rotating device 7 can move at the lower end of the blocking plate 6 through the connecting.

Particularly, draw-in groove 10 has evenly been seted up to solid fixed ring 2's right side wall, and the even fixed mounting of left side wall of shutoff board 6 has fixture block 11, and fixture block 11 is the rubber material, and in fixture block 11 pegs graft in draw-in groove 10, and the position of rotating solid fixed ring 2 department to shutoff board 6 is injectd, increases the leakproofness between shutoff board 6 and solid fixed ring 2 simultaneously.

Specifically, the upper right end of the inner cavity of the check valve main body 1 is fixedly provided with a rubber pad 12, and when the plugging plate 6 rotates to the highest position, the connecting plate 5 contacts with the rubber pad 12, so that the connecting plate 5 and the inner wall of the check valve main body 1 are protected.

Specifically, a buffer ring 13 is fixedly installed between the inner side wall of the check valve body 1 and the left side wall of the fixing ring 2, so that the medium is prevented from being accumulated on the left side of the fixing ring 2.

The working principle is as follows: when the medium flows from the left side to the right side, the flow and the force of the medium drive the plugging plate 6 to rotate towards the right side until the connecting plate 5 contacts the rubber pad 12, at the moment, under the action of gravity, the auxiliary rotating device 7 moves and is in a state shown in figure 2, when the medium stops flowing, the plugging plate 6 can reset under the action of gravity and contact the fixed ring 2 to realize the plugging of the check valve, when the medium reflows, due to the blocking effect of the auxiliary rotating device 7, the pushing effect of the medium on the plugging plate 6 is increased, the speed of the plugging plate 6 rotating to the fixed ring 2 is accelerated, meanwhile, the auxiliary rotating device 7 can reduce the medium backflow amount, so that the rotating speed of the plugging plate 6 can be increased, the medium backflow amount can be reduced, and finally the medium backflow amount is greatly reduced, so that the check valve can be smoothly carried out.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A swing check valve characterized in that: including check valve main part (1), the inside wall left side fixed mounting of check valve main part (1) has solid fixed ring (2), the inside wall fixed mounting of check valve main part (1) has fixed axle (3), rotor plate (4) have been cup jointed to the lateral wall of fixed axle (3), the lower lateral wall fixed mounting of rotor plate (4) has connecting plate (5), the left side wall fixed mounting of connecting plate (5) has closure plate (6), and the left side wall laminating of closure plate (6) is in the right side wall of solid fixed ring (2), the lower lateral wall sliding of closure plate (6) is equipped with supplementary slewer (7).

2. A swing check valve as claimed in claim 1, wherein: the auxiliary rotating device (7) comprises a movable plate (71), a groove body (72) is formed in the lower side wall of the movable plate (71), a rectangular groove (73) is formed in the upper side wall of the movable plate (71), a baffle (74) is fixedly mounted on the inner side wall of the rectangular groove (73), a sliding groove (75) is formed in the upper side wall of the baffle (74), a connecting block (8) is fixedly mounted on the lower side wall of a plugging plate (6), the connecting block (8) is connected in the sliding groove (75) in an inserting mode, a sliding block (9) is fixedly mounted on the lower side wall of the connecting block (8), and the sliding block (9) is connected in the rectangular groove (73) in an inserting.

3. A swing check valve as claimed in claim 1, wherein: clamping grooves (10) are uniformly formed in the right side wall of the fixing ring (2), clamping blocks (11) are uniformly and fixedly mounted on the left side wall of the blocking plate (6), and the clamping blocks (11) are inserted into the clamping grooves (10).

4. A swing check valve as claimed in claim 1, wherein: and a rubber pad (12) is fixedly arranged at the upper right end of the inner cavity of the check valve main body (1).

5. A swing check valve as claimed in claim 1, wherein: a buffer ring (13) is fixedly installed between the inner side wall of the check valve body (1) and the left side wall of the fixing ring (2).