CN213088834U

CN213088834U - Rubber lamella check valve with protect function

Info

Publication number: CN213088834U
Application number: CN202021833097.1U
Authority: CN
Inventors: 张荣武; 刘姗姗; 李洪圆
Original assignee: Tongling Wusong Valve Co ltd
Current assignee: Tongling Wusong Valve Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-30
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a rubber lamella check valve with protect function relates to check valve installation technical field, passes through bolt sealing connection to current means, influences the leakproofness that the pipeline valve body is connected, leads to liquid transport unstability, causes the seepage, influences the normal use scheduling problem of check valve, at present proposes following scheme, including the valve body, the valve gap is installed at the top of valve body, the inner wall of valve body is equipped with the valve clack that the slope set up, the connecting pipe is installed at the both ends of valve body, the outer lane welding of connecting pipe has the lug, the both ends fixedly connected with fixed plate of valve body, the spout has been seted up to the inner wall of fixed plate, the inner wall slip of spout is equipped with the slider, the one end of slider is connected with splint. The utility model discloses simple structure is novel, protects interface department, and multiple sealing connection prevents that the bolt from becoming flexible sealed variation, improves the result of use, ensures that liquid transport is stable, is fit for promoting.

Description

Rubber lamella check valve with protect function

Technical Field

The utility model relates to a check valve installation technical field especially relates to a rubber lamella check valve with protect function.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The disadvantages are high resistance and poor sealing performance when closed. Rubber lamella check valve can effectual prevention liquid backward flow for liquid directional transport, but the valve body lies in the pipe connection time, and current means is through a plurality of bolted connection to carry out sealing connection through the sealing washer, but the bolt looseness or the corrosion can lead to the leakproofness of pipeline valve body connection to reduce in long-term use, lead to liquid transport unstability, cause the seepage, influence the normal use of check valve, for this reason we propose a rubber lamella check valve with protect function.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of rubber lamella check valve with protect function has solved current means and has passed through bolt sealing connection, influences the leakproofness that the pipeline valve body is connected, leads to liquid transport unstable, causes the seepage, influences the normal use scheduling problem of check valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rubber lamella check valve with protect function, includes the valve body, the valve gap is installed at the top of valve body, the inner wall of valve body is equipped with the valve clack that the slope set up, the connecting pipe is installed at the both ends of valve body, the outer lane welding of connecting pipe has the lug, the both ends fixedly connected with fixed plate of valve body, the spout has been seted up to the inner wall of fixed plate, the inner wall slip of spout is equipped with the slider, the one end of slider is connected with splint, one side of splint is rotated and is connected with the dwang, the other end welding of dwa.

Preferably, a convex block is welded at the outer ring of one end of the connecting pipe, a connecting bolt is rotatably connected between the convex block and the valve body, and a sealing ring is arranged between the convex block and the outer wall of one end of the valve body.

Preferably, the vertical section of the fixing plate is of an n-shaped structure, a sealing gasket is bonded on the inner wall of the top of the fixing plate, and one side of the sealing gasket is bonded with the outer wall of one end of the valve body.

Preferably, a through hole is formed in one side wall of the fixing plate, an internal thread is arranged in the through hole, an external thread is arranged on the outer ring of the rotating rod, and the internal thread is matched with the external thread.

Preferably, the vertical sections of the sliding block and the sliding groove are both of a T-shaped structure, and an anti-slip block is arranged on one side of the clamping plate close to the convex block.

Preferably, the top of the valve clack is rotationally connected with the inner wall of the valve body, and the sealing ring and the sealing gasket are elastic rubber pads.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an installation valve body, valve gap, valve clack, connecting pipe, connecting bolt, sealing washer, fixed plate, sealed pad, spout, slider, splint, dwang, lug and carousel isotructure, wherein install connecting pipe and valve body through connecting bolt and be connected, seal it through the sealing washer, through splint and the dwang that runs through the fixed plate in the fixed plate, promote splint to one side near the lug for connecting pipe and valve body extrude once more fixedly, ensure its connection leakproofness once more through sealed pad; the device simple structure is novel, protects interface department, and multiple sealing connection prevents the bolt not hard up sealed variation, improves the result of use, ensures that liquid transport is stable, is fit for promoting.

Drawings

Fig. 1 is a schematic front view of a rubber flap check valve with a protection function according to the present invention;

fig. 2 is an enlarged schematic view of a structure at a position B of a rubber flap check valve with a protection function according to the present invention;

fig. 3 is the utility model provides a connecting pipe and valve body of rubber lamella check valve with protect function look sideways at the schematic diagram.

In the figure: 1 valve body, 2 valve covers, 3 valve clacks, 4 connecting pipes, 5 connecting bolts, 6 sealing rings, 7 fixing plates, 8 sealing gaskets, 9 sliding grooves, 10 sliding blocks, 11 clamping plates, 12 rotating rods, 13 bumps and 14 rotating discs.

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.

Referring to fig. 1-3, a rubber lamella check valve with protect function, including valve body 1, valve gap 2 is installed at the top of valve body 1, the inner wall of valve body 1 is equipped with the valve clack 3 that the slope set up, connecting pipe 4 is installed at the both ends of valve body 1, the outer lane welding of connecting pipe 4 has lug 13, the both ends fixedly connected with fixed plate 7 of valve body 1, spout 9 has been seted up to the inner wall of fixed plate 7, the inner wall of spout 9 slides and is equipped with slider 10, the one end of slider 10 is connected with splint 11, one side of splint 11 is rotated and is connected with dwang 12, the other end welding of.

The welding of the one end outer lane of connecting pipe 4 has lug 13, it is connected with connecting bolt 5 to rotate between lug 13 and the valve body 1, be equipped with sealing washer 6 between the one end outer wall of lug 13 and valve body 1, the vertical cross-section of fixed plate 7 is "n" font structure, and the top inner wall of fixed plate 7 bonds and has sealed pad 8, the one side and the bonding of 1 one end outer wall of valve body of sealed pad 8, the through-hole has been seted up to a curb plate wall of fixed plate 7, and be equipped with the internal thread in the through-hole, the outer lane of dwang 12 is equipped with the external screw thread, and internal thread and external screw thread looks adaptation, slider 10 is "T" font structure with the vertical cross-section of spout 9, splint 11 are close to one side of lug 13 and are equipped with.

In this embodiment, first, the convex block 13 at one end of the connecting pipe 4 is rotated to the inner wall of the fixing plate 7, so that the bolt through hole on the pipe wall of the connecting pipe 4 is aligned with the through hole on the valve body 1, at this time, the connecting bolt 5 penetrates through the bolt through hole, so that the valve body 1 is primarily fixedly connected with the connecting pipe 4, at this time, the rotary plate 14 is rotated so that the rotary rod 12 is rotated, the rotary rod 12 pushes the clamping plate 11 to one side close to the convex block 13, at this time, the sliding block 10 and the sliding groove 9 play a role of guiding the clamping plate 11, so as to prevent the clamping plate 11 from rotating, when the clamping plate 11 is tightly attached to the convex block 13, the rotary plate 14 is stopped rotating, at this time, the clamping plate 11 seals and fixes the connecting pipe 4 and the valve body 1 again, the valve clack 3 carries out directional liquid conveying when in use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a rubber lamella check valve with protect function, includes valve body (1), its characterized in that, valve gap (2) are installed at the top of valve body (1), the inner wall of valve body (1) is equipped with valve clack (3) that the slope set up, connecting pipe (4) are installed at the both ends of valve body (1), the outer lane welding of connecting pipe (4) has lug (13), the both ends fixedly connected with fixed plate (7) of valve body (1), spout (9) have been seted up to the inner wall of fixed plate (7), the inner wall slip of spout (9) is equipped with slider (10), the one end of slider (10) is connected with splint (11), one side of splint (11) is rotated and is connected with dwang (12), the other end welding of dwang (12) has carousel (14).

2. The rubber flap check valve with the protection function according to claim 1, characterized in that a projection (13) is welded on the outer ring of one end of the connecting pipe (4), a connecting bolt (5) is rotatably connected between the projection (13) and the valve body (1), and a sealing ring (6) is arranged between the projection (13) and the outer wall of one end of the valve body (1).

3. The rubber flap check valve with the protection function as claimed in claim 2, wherein the vertical section of the fixing plate (7) is of an n-shaped structure, a sealing gasket (8) is bonded to the inner wall of the top of the fixing plate (7), and one side of the sealing gasket (8) is bonded to the outer wall of one end of the valve body (1).

4. The rubber flap check valve with the protection function of claim 1, wherein a through hole is formed in one side wall of the fixing plate (7), an internal thread is formed in the through hole, an external thread is formed on an outer ring of the rotating rod (12), and the internal thread is matched with the external thread.

5. The rubber flap check valve with the protection function of claim 1, characterized in that the vertical sections of the sliding block (10) and the sliding groove (9) are both T-shaped structures, and one side of the clamping plate (11) close to the convex block (13) is provided with an anti-slip block.

6. The rubber flap check valve with protection function of claim 3, characterized in that the top of the valve flap (3) is rotatably connected with the inner wall of the valve body (1), and the sealing ring (6) and the sealing pad (8) are elastic rubber pads.