CN218440807U - Integral type butterfly valve check valve - Google Patents

Abstract

The utility model discloses an integrated butterfly valve check valve, belonging to the technical field of valves, comprising a butterfly valve body and a check valve body which are connected in an integrated manner; the method is characterized in that: butterfly valve body one end is the entrance point, and one side that the check valve body is close to the entrance point is provided with the check valve case, and the check valve spring holder is worn to establish by check valve case axle, has seted up on the check valve spring holder and has dismantled the limbers, and one side of check valve spring holder is provided with the extension axle sleeve, the beneficial effects of the utility model are that: the valve body and the spring seat of the check valve are matched, so that the function of the check valve of the integrated butterfly valve is realized, the disassembly and the cleaning are convenient, and the sealing grade requirement of the sealing gasket of the valve plate is lower; boss, spring and extension axle sleeve cooperation can realize that the check valve case axle wears to establish the check valve spring holder, carries out the encapsulated situation switching of valve plate, can also further avoid the spring slope to lead to the sealing performance decline of the valve plate of opposite side, lead to the problem of leaking.

Description

Integral type butterfly valve check valve

The technical field is as follows:

the utility model belongs to the technical field of the valve, especially, relate to an integral type butterfly valve check valve.

Background art:

the integrated check butterfly valve has one part of valve clack opened and closed automatically by medium flowing to prevent medium back flow, and the other part of valve comprising butterfly valve, which is one automatic valve and one manual valve for preventing medium back flow, reverse rotation of pump and driving motor and discharge of container medium.

Integral type butterfly valve check valve on the market also appears, as the national utility model patent of patent number 201620445728.X discloses integral type butterfly valve check valve, is comparatively classic a structure, but this kind of structure has some defects, for example: the end of intaking of this structure is to check valve body, in case need clear up in the check valve body, can only dismantle from the outside of check valve body valve plate, because this department sealed requirement structure is comparatively complicated, frequent dismantlement can lead to the sealing performance of valve plate to descend moreover, leads to the problem of leaking to produce.

The position of the water inlet and the water outlet is simply adjusted, and the valve cannot be used due to the principle that the valve clack is automatically opened and closed by the flowing of the medium to prevent the medium from flowing backwards.

The utility model has the following contents:

in order to solve the problems and overcome the defects of the prior art, the utility model provides an integrated butterfly valve check valve;

the first technical problem to be solved is that: the end is intake to current integral type butterfly valve check valve is the check valve body, in case need clear up in the check valve body, can only dismantle from the outside of check valve body valve plate, because the sealed requirement structure of this department is comparatively complicated, frequent dismantlement can lead to the sealing performance decline of valve plate moreover, leads to the problem of leaking to produce.

The utility model provides a concrete technical scheme of above-mentioned technical problem does: the integrated butterfly valve check valve comprises a butterfly valve body and a check valve body which are integrally connected; the method is characterized in that: one end of the butterfly valve body is an inlet end, one end of the check valve body is an outlet end,

one side that the check valve body is close to the entrance point is provided with the check valve case, the check valve case include the valve plate, the entrance point sealing fit of seal gasket and check valve body is passed through to valve plate one side, the valve plate opposite side is provided with the check valve spool, the spring is established to the outside cover of check valve spool, spring one end offsets with the check valve spring holder, the check valve spring holder is worn to establish by the check valve spool, has seted up on the check valve spring holder and has dismantled the limbers, the check valve spring holder is connected with the exit end of check valve case.

Further, an elongated boss is provided at one side of the check valve spring seat.

Furthermore, the extension shaft sleeve is perpendicular to the end face of the check valve spring seat, the check valve core shaft penetrates through the inner side of the extension shaft sleeve, and the spring is sleeved on the outer side of the extension shaft sleeve.

Further, the check valve spool shaft is provided with a boss, the check valve spool shaft is connected with the valve plate through the boss, and the spring is sleeved on the boss.

Further, the check valve spring seat is connected with the outlet end of the check valve spool by a screw thread.

Further, the inlet end of the butterfly valve body is connected with a flange.

The beneficial effects of the utility model are that:

one advantage of the present invention is that an integrated butterfly valve check valve is provided that includes a butterfly valve body and a check valve body that are integrally connected; one end of the butterfly valve body is an inlet end, one end of the check valve body is an outlet end, and the outlet end is matched with the check valve body and the check valve spring seat, so that the function of the integrated butterfly valve check valve is realized, the disassembly and the cleaning are convenient, particularly the disassembly end is arranged on the check valve spring seat, and the sealing grade requirement of a sealing gasket of the valve plate is low;

one advantage of the utility model is that an extension shaft sleeve is arranged on one side of the check valve spring seat, so as to avoid the problem of water leakage caused by the reduction of the sealing performance of the valve plate on the other side due to the inclination of the spring;

the utility model discloses an advantage lies in providing the check valve spool and is provided with the boss, and boss, spring and extension axle sleeve cooperation can realize that the check valve spool wears to establish the check valve spring holder, carry out the encapsulated situation switching of valve plate, can also further avoid the spring slope to lead to the sealing performance decline of the valve plate of opposite side, lead to the problem of leaking.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the fitting structure of the check valve core and the check valve spring seat of the present invention; in the drawings:

1. a butterfly valve body; 2. a check valve body; 3. sealing gaskets; 4. a valve plate; 5. a spring; 6. a check valve spool shaft; 7. a check valve spring seat; 8. disassembling the limber holes; 9. a boss; 10. an elongated shaft sleeve.

The specific implementation mode is as follows:

in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses a concrete implementation mode: the integrated butterfly valve check valve comprises a butterfly valve body 1 and a check valve body 2 which are connected integrally; the butterfly valve body 1 and the check valve body 2 of the integral butterfly valve check valve as one embodiment of the present invention can be obtained by a shaft cutting process or by welding, which belongs to the common knowledge in the art and is not the protection category of the present invention, and will not be described herein;

one end of the butterfly valve body 1 is an inlet end, one end of the check valve body 2 is an outlet end,

especially, one side of the check valve body 2 close to the inlet end is provided with a check valve core, the check valve core comprises a valve plate 4, one side of the valve plate 4 is in sealing fit with the inlet end of the check valve body 2 through a sealing gasket 3, the other side of the valve plate 4 is provided with a check valve core shaft 6, the outer side of the check valve core shaft 6 is sleeved with a spring 5, one end of the spring 5 is propped against a check valve spring seat 7, the check valve core shaft 6 penetrates through the check valve spring seat 7, the check valve spring seat 7 is connected with the outlet end of the check valve core, when the check valve is in normal use, fluid media enter the valve body of the butterfly valve through a flange, the valve body and the valve core of the butterfly valve are of common valve body structures on the market, the flow state of the valve core is adjusted through manually rotating a rotating handle of the butterfly valve, the fluid media pass through the valve body of the butterfly valve and enter the integrated check valve body 2,

one side of the valve plate 4 is in sealing fit with the inlet end of the check valve body 2 through the sealing gasket 3, and the spring is positioned on the other side, namely one end of the spring 5 is abutted against the check valve spring seat 7 at the outlet end, so that the valve plate 4 is automatically opened and closed under the action of the medium flowing per se and the spring, particularly, the check valve spring seat 7 is connected with the outlet end of the check valve core through threads, and the check valve spring seat 7 is provided with a disassembly water through hole 8 for facilitating disassembly and cleaning, particularly, the disassembly end is arranged at the check valve spring seat 7, so that the sealing grade requirement of the sealing gasket 3 of the valve plate 4 is lower;

in a preferred embodiment of the present invention, an extension shaft sleeve 10 is provided on one side of the check valve spring seat 7, the extension shaft sleeve 10 is perpendicular to the end surface of the check valve spring seat 7, the check valve spool 6 is inserted into the extension shaft sleeve 10, and the spring 5 is fitted to the extension shaft sleeve 10. The running state of the spring 5 is stabilized, and the problem of water leakage caused by the fact that the sealing performance of the valve plate on the other side is reduced due to the fact that the spring 5 inclines is solved;

as another preferred scheme of this practicality, check valve spool 6 is provided with boss 9, and check valve spool 6 links to each other with valve plate 4 through boss 9, and spring 5 is established to the boss 9 cover, and spring 5, boss 9 and extension axle sleeve 10 cooperation like this can realize that check valve spool 6 wears to establish check valve spring holder 7, carry out the encapsulated situation switching of valve plate 4, can also further avoid the spring 5 slope to lead to the sealing performance of the valve plate of opposite side to descend, lead to the problem of leaking.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. An integrated butterfly valve check valve comprises a butterfly valve body (1) and a check valve body (2) which are connected integrally; the method is characterized in that: one end of the butterfly valve body (1) is an inlet end, one end of the check valve body (2) is an outlet end,

one side that check valve body (2) are close to the entrance point is provided with the check valve case, the check valve case include valve plate (4), the entrance point sealing fit of seal gasket (3) and check valve body (2) is passed through to valve plate (4) one side, valve plate (4) opposite side is provided with check valve case axle (6), spring (5) are established to the outside cover of check valve case axle (6), spring (5) one end offsets with check valve spring holder (7), check valve spring holder (7) are worn to establish in check valve case axle (6), seted up on check valve spring holder (7) and dismantled limbers (8), check valve spring holder (7) are connected with the exit end of check valve case through the screw thread.

2. The integrated butterfly valve check valve according to claim 1, characterized in that one side of the check valve spring seat (7) is provided with an elongated boss (10).

3. The integrated butterfly valve check valve according to claim 2, characterized in that the elongated bushing (10) is perpendicular to the end face of the check valve spring seat (7), the check valve spool shaft (6) is inserted inside the elongated bushing (10), and the spring (5) is inserted outside the elongated bushing (10).

4. The integrated butterfly valve check valve according to claim 3, characterized in that the check valve spool shaft (6) is provided with a boss (9), the check valve spool shaft (6) is connected with the valve plate (4) through the boss (9), and the spring (5) is sleeved on the boss (9).

5. The integrated butterfly valve check valve according to claim 1, characterized in that a flange is connected to the inlet end of the butterfly valve body (1).

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