CN219911866U - Combined swing check valve convenient to overhaul and replace internal device - Google Patents

Abstract

The utility model belongs to the technical field of check valves, and particularly relates to a combined swing check valve capable of conveniently overhauling and replacing internal devices, which comprises a valve body, wherein a valve clack is arranged in the valve body, a pin shaft is arranged above the valve clack, a rocker arm is arranged on one side of the pin shaft, a top cover is arranged above the valve body, a first limiting piece is arranged on one side of the top cover, a second limiting piece is arranged below the first limiting piece, a notch is arranged in the second limiting piece, a limiting pin is arranged above the notch, and a thread bush is arranged above the limiting pin; according to the utility model, the top cover, the first limiting piece, the second limiting piece and the limiting pin are arranged, when the swing check valve is overhauled, a plurality of groups of threads are screwed out from the thread groove respectively, then the thread sleeve is rotated to drive the limiting pin to move upwards from the notch, and the top cover is taken down, so that the device inside the valve body can be overhauled and replaced, and the device inside the valve body can be overhauled and replaced conveniently.

Description

Combined swing check valve convenient to overhaul and replace internal device

Technical Field

The utility model relates to the technical field of check valves, in particular to a combined swing check valve capable of conveniently overhauling and replacing internal devices.

Background

The check valve is a valve which is used for automatically opening and closing a valve plate and preventing media from flowing backwards by means of flowing, is mainly used for a pipeline through which media flows unidirectionally, is opened under the action of fluid pressure flowing in one direction, and is closed on a valve seat by the fluid pressure, the dead weight of the valve plate and a torsion spring when the fluid flows reversely, so that fluid is cut off.

The prior art has the following problems:

1. the valve body of the existing combined swing check valve is easy to generate gaps after long-time impact of fluid, so that the tightness is reduced, and the fluid backflow phenomenon occurs;

2. when the existing combined swing check valve overhauls and replaces the internal device of the valve body, time and labor are wasted, and convenient overhauling or replacement cannot be achieved, so that the follow-up use is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the combined swing check valve for conveniently overhauling and replacing the internal device, and solves the problem that the existing swing check valve cannot be overhauled or replaced conveniently.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a convenient combination formula swing check valve that overhauls change internal device, includes the valve body, the inside of valve body is provided with the valve clack, the top of valve clack is provided with the round pin axle, one side of round pin axle is provided with the rocking arm, the top of valve body is provided with the top cap, one side of top cap is provided with first locating part, the below of first locating part is provided with the second locating part, the inside of second locating part is provided with the notch, the top of notch is provided with the spacer pin, the top of spacer pin is provided with the thread bush, the inside wall of valve body is provided with dismantles the cover, the inboard of dismantlement cover is provided with the sealing washer.

As a preferable technical scheme of the utility model, the outer surface wall of the top cover is provided with a thread groove, an upper cover is arranged above the top cover, and a lifting lug is fixedly connected above the upper cover.

As a preferable technical scheme of the utility model, a semitransparent window is arranged in the upper cover, the inside of the valve body can be observed, and the lifting lug can be connected with an external component.

As a preferable technical scheme of the utility model, the first limiting piece and the second limiting piece are two groups and are symmetrical at two sides of the top cover.

As a preferable technical scheme of the utility model, the limiting pin penetrates through the first limiting piece, and the limiting pin is in threaded connection with the notch.

As a preferable technical scheme of the utility model, the outer surface wall of the thread bush is in a thread shape, and the thread bush is fixedly connected with the limiting pin.

As a preferable technical scheme of the utility model, the disassembly sleeve is embedded in the inner wall of the valve body, and the sealing ring is detachable.

Compared with the prior art, the utility model provides the combined swing check valve for conveniently overhauling and replacing the internal devices, which has the following beneficial effects:

1. this a convenient combination formula swing check valve who overhauls change internal device through setting up valve clack, round pin axle, rocking arm, dismantlement cover and sealing washer, when using combination formula swing check valve, the valve body operation, and fluid gets into in the valve body, and round pin axle and rocking arm cooperation valve clack carry out a series of work, and sealing washer realization sealed effect, the dismantlement cover of setting can be changed the sealing washer, and the leakproofness is good, can not appear the fluid reflux phenomenon.

2. This a convenient combination formula swing check valve of changing interior device that overhauls is through setting up top cap, first locating part, second locating part and spacer pin, overhauls when swing check valve, unscrews the multiunit screw thread from the screw thread inslot respectively, and the rethread thread bush drives the spacer pin and upwards moves from the notch, takes off the top cap, can overhaul and change the interior device of valve body, but the interior device of portable maintenance change valve body facilitates the use.

Drawings

FIG. 1 is a schematic plan view of the present utility model;

FIG. 2 is a schematic view of a valve cover according to the present utility model;

FIG. 3 is a schematic view of a limiting member according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of the portion a of the present utility model.

In the figure: 1. a valve body; 2. a valve flap; 3. a pin shaft; 4. a rocker arm; 5. a top cover; 51. a thread groove; 52. an upper cover; 53. lifting lugs; 6. a first limiting member; 7. a second limiting piece; 8. a notch; 9. a limiting pin; 10. a thread sleeve; 11. disassembling the sleeve; 12. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, in the present embodiment: the utility model provides a convenient combination formula swing check valve who overhauls change internal device, including valve body 1, the inside of valve body 1 is provided with valve clack 2, valve clack 2 is used for valve body 1 operation, the top of valve clack 2 is provided with round pin axle 3, one side of round pin axle 3 is provided with rocking arm 4, round pin axle 3 and rocking arm 4 are used for cooperating valve clack 2 and work, the top of valve body 1 is provided with top cap 5, one side of top cap 5 is provided with first locating part 6, the below of first locating part 6 is provided with second locating part 7, first locating part 6 and second locating part 7 are used for fixed top cap 5, the inside of second locating part 7 is provided with notch 8, the top of notch 8 and locating pin 9 are used for fixed first locating part 6 and second locating part 7, the top of locating pin 9 is provided with thread bush 10, the inside wall of valve body 1 is provided with dismantles cover 11, the inboard of dismantlement cover 11 is provided with sealing washer 12, dismantlement cover 11 and sealing washer 12 are used for realizing the change of sealing washer 12.

In the embodiment, the outer surface wall of the top cover 5 is provided with a thread groove 51, an upper cover 52 is arranged above the top cover 5, a lifting lug 53 is fixedly connected above the upper cover 52, and the inner device of the valve body 1 can be conveniently overhauled by arranging the top cover 5; a semitransparent window is arranged in the upper cover 52, the inside of the valve body 1 can be observed, the lifting lug 53 can be connected with an external component, and the external component can be connected by arranging the lifting lug 53; the first limiting piece 6 and the second limiting piece 7 are two groups, are symmetrical on two sides of the top cover 5, and can fix the top cover 5 by arranging the first limiting piece 6 and the second limiting piece 7; the limiting pin 9 penetrates through the first limiting piece 6, the limiting pin 9 is in threaded connection with the notch 8, and the first limiting piece 6 and the second limiting piece 7 can be fixed through the notch 8 and the limiting pin 9; the outer surface wall of the thread bush 10 is in a thread shape, the thread bush 10 is fixedly connected with the limiting pin 9, and the limiting pin 9 can be rotated by arranging the thread bush 10; the disassembly sleeve 11 is embedded in the inner wall of the valve body 1, the sealing ring 12 is detachable, and the replacement of the sealing ring 12 can be realized by arranging the disassembly sleeve 11 and the sealing ring 12.

The working principle and the using flow of the utility model are as follows: when the combined swing check valve is used, the valve body 1 operates, fluid enters the valve body 1, the pin shaft 3 and the rocker arm 4 cooperate with the valve clack 2 to perform a series of operations, the sealing ring 12 achieves a sealing effect, the arranged dismounting sleeve 11 can replace the sealing ring 12, when the swing check valve is overhauled, a plurality of groups of bolts are respectively screwed out of the thread grooves 51, the thread sleeve 10 is rotated to drive the limiting pin 9 to move upwards from the notch 8, the top cover 5 is taken down, so that the internal devices of the valve body 1 can be overhauled and replaced, the internal devices of the valve body 1 can be overhauled conveniently, and the use is convenient; the sealing performance is good, and the phenomenon of fluid backflow can not occur.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a convenient combination formula swing check valve who overhauls change internal device, includes valve body (1), its characterized in that: the inside of valve body (1) is provided with valve clack (2), the top of valve clack (2) is provided with round pin axle (3), one side of round pin axle (3) is provided with rocking arm (4), the top of valve body (1) is provided with top cap (5), one side of top cap (5) is provided with first locating part (6), the below of first locating part (6) is provided with second locating part (7), the inside of second locating part (7) is provided with notch (8), the top of notch (8) is provided with spacer pin (9), the top of spacer pin (9) is provided with thread bush (10), the inside wall of valve body (1) is provided with dismantles cover (11), the inboard of dismantlement cover (11) is provided with sealing washer (12).

2. The combination swing check valve for easy access replacement of internal components of claim 1, wherein: screw thread groove (51) have been seted up to the outward appearance wall of top cap (5), and the top of top cap (5) is provided with upper cover (52), the top fixedly connected with lug (53) of upper cover (52).

3. The combination swing check valve for easy access replacement of internal components of claim 2, wherein: a semitransparent window is arranged in the upper cover (52) and can be used for observing the inside of the valve body (1), and the lifting lug (53) can be connected with an external component.

4. The combination swing check valve for easy access replacement of internal components of claim 1, wherein: the first limiting piece (6) and the second limiting piece (7) are two groups and are symmetrical on two sides of the top cover (5).

5. The combination swing check valve for easy access replacement of internal components of claim 1, wherein: the limiting pin (9) penetrates through the first limiting piece (6), and the limiting pin (9) is in threaded connection with the notch (8).

6. The combination swing check valve for easy access replacement of internal components of claim 1, wherein: the outer surface wall of the thread sleeve (10) is in a thread shape, and the thread sleeve (10) is fixedly connected with the limiting pin (9).

7. The combination swing check valve for easy access replacement of internal components of claim 1, wherein: the disassembly sleeve (11) is embedded in the inner wall of the valve body (1), and the sealing ring (12) is detachable.