CN220102178U - Novel swing check valve - Google Patents

Abstract

The utility model provides a novel swing check valve, wherein flange plates are fixedly connected to two sides of a check valve main body, an end cover is fixedly connected to the top of the check valve main body, a fixing sleeve is fixedly connected to one side of the check valve main body, a hexagonal bolt is connected to one end of the fixing sleeve in a threaded manner, a valve rod is rotatably connected to the outer side surface of the fixing sleeve, a limiting mechanism is arranged at the top of the end cover, a check protection structure is arranged at one end of the valve rod, a valve seat can be opened by manually rotating the valve rod to enable fluid to pass through, the valve rod is limited through a limiting rod, the valve seat is always kept in an open state, the limiting rod rotates around a rotating shaft and is installed in an installation groove through the rotating shaft, the limiting rod is limited by a first limiting groove and a second limiting groove formed in the top of the end cover, the limiting rod cannot move after limiting the valve rod limits the valve rod, the valve rod drives the valve seat to always keep an open state, and the effect that the fluid can pass through the check valve under the condition of insufficient flow is achieved.

Description

Novel swing check valve

Technical Field

The utility model relates to the technical field related to swing check valves, in particular to a novel swing check valve.

Background

The utility model provides a swing check valve, the effect is that the medium in the pipeline is prevented flowing backwards, the piece is opened by oneself or is closed by medium flow and strength to prevent the medium backflow's valve to call the check valve, the check valve belongs to automatic valve class, generally be used for medium unidirectional flow's pipeline, only allow medium to flow to one direction, in order to prevent the accident, this class valve should generally be installed horizontally in the pipeline, swing check valve is also known as one-way valve or check valve, its effect is that the medium in the prevention pipeline flows backwards, the piece is opened by oneself or is closed by medium flow and strength, so as to prevent the valve of medium backflow to call the check valve, the check valve belongs to automatic valve class, mainly be used for medium unidirectional flow's pipeline, only allow medium to flow to one direction in the valve body, prevent the occurrence of backflow in order to prevent the accident, this class valve should generally be installed horizontally in the pipeline, all pieces of valve are all installed inside the valve body, outside the flange position is used for sealing washer and sealing washer, outside, the whole no leak point of penetrating, it can be used for preventing the valve outside, the valve flap can be used for the valve flap, the valve flap is opened by medium flow and strength is by oneself to open or close by force, the valve flap is used for the valve of certain degree of rotation, the valve is suitable for the valve is opened by a certain degree of flow, the medium is not needed to be opened by the valve, and is full in the valve is opened by the valve, and is suitable for the valve is opened by the valve, and is opened by a valve, and is full in the valve, and has a certain degree flow to be opened, and can be opened by a certain degree flow and has a certain degree flow.

When the check valve is an existing swing check valve, most of swing check valves are in use, because the fluid in the check valve is required to prop up the valve clack, the valve clack rotates to allow the fluid to pass through, and sometimes the flow rate of the fluid is insufficient to push the valve clack open, so that the fluid cannot pass through the check valve.

Disclosure of Invention

The utility model aims to provide a novel swing check valve, which solves the problems that in the prior art, most of swing check valves are required to push up a valve clack by fluid in the swing check valve in the use process, so that the valve clack rotates to allow the fluid to pass through, and the flow of the fluid is insufficient to push up the valve clack sometimes, so that the fluid cannot pass through the check valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel swing check valve, includes check valve main part and stop gear, wherein stop gear is including mounting groove, pivot, gag lever post, handle, first spacing groove and second spacing groove, the both sides fixedly connected with ring flange of check valve main part, the top fixedly connected with end cover of check valve main part, one side fixedly connected with fixed sleeve of check valve main part, fixed sleeve's one end threaded connection has hexagonal bolt, fixed sleeve's outside surface rotates and is connected with the valve rod, the top of end cover is provided with stop gear, the one end of valve rod is provided with the check protection architecture.

Preferably, the stop gear is including mounting groove, pivot, gag lever post, handle, first spacing groove and second spacing groove, the mounting groove has been seted up to the outside surface of end cover, the inboard fixedly connected with pivot of mounting groove, the outside surface rotation of pivot is connected with the gag lever post, the outside fixedly connected with handle of gag lever post, the mounting groove has been seted up to the outside surface of end cover, the mounting groove has the second spacing groove has been seted up to the outside surface of end cover.

Preferably, the mounting groove is penetrated by a first limit groove, and the first limit groove, a second limit groove and the limit rod are matched for use.

Preferably, the check protection structure comprises a valve seat, a valve core, an elastic gasket and an elastic sleeve, wherein one end of the valve seat is fixedly connected with the valve core, the elastic gasket is sleeved on the outer side surface of the valve core, and the elastic sleeve is sleeved on the outer side surface of the valve rod.

Preferably, the elastic gasket is made of rubber, and the elastic sleeve is made of rubber.

Compared with the prior art, the utility model has the beneficial effects that: this novel swing check valve, through mounting groove, the pivot, the gag lever post, the handle, the setting of first spacing groove and second spacing groove, at the in-process of using, can open the disk seat through manual rotation valve rod, make fluid pass through, and it is spacing with the valve rod through the gag lever post, make the disk seat keep open state always, the gag lever post revolutes the pivot rotatory and installs inside the mounting groove through the pivot, the gag lever post is spacing by first spacing groove and the second spacing groove of seting up at the end cover top, make the gag lever post can not remove after to the valve rod spacing, make the valve rod drive the disk seat and keep open state always, the effect that also can make fluid pass through the check valve under the condition of insufficient flow has been reached.

Drawings

FIG. 1 is a schematic side view of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the internal structure of the present utility model;

FIG. 3 is a schematic side view of the internal structure of the present utility model;

FIG. 4 is a schematic side view of the internal structure of the present utility model;

FIG. 5 is a schematic side view of the valve core and elastic washer matching structure of the present utility model;

FIG. 6 is a schematic side view of the valve stem and elastomeric sleeve mating structure of the present utility model;

FIG. 7 is an enlarged view of the utility model at A in FIG. 3;

fig. 8 is an enlarged view of fig. 4 at B in accordance with the present utility model.

In the figure: 1. a check valve body; 2. a flange plate; 3. an end cap; 4. a fixed sleeve; 5. a hexagonal bolt; 6. a valve stem; 7. a limiting mechanism; 701. a mounting groove; 702. a rotating shaft; 703. a limit rod; 704. a handle; 705. a first limit groove; 706. the second limit groove; 8. a non-return protection structure; 801. a valve seat; 802. a valve core; 803. an elastic washer; 804. an elastic sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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. 1-8, the present utility model provides a technical solution: the utility model provides a novel swing check valve, including check valve main part 1 and stop gear 7, wherein stop gear 7 is including mounting groove 701, pivot 702, gag lever post 703, handle 704, first spacing groove 705 and second spacing groove 706, the both sides fixedly connected with ring flange 2 of check valve main part 1, the top fixedly connected with end cover 3 of check valve main part 1, one side fixedly connected with fixed sleeve 4 of check valve main part 1, the one end threaded connection of fixed sleeve 4 has hex bolts 5, the outside surface rotation of fixed sleeve 4 is connected with valve rod 6, the top of end cover 3 is provided with stop gear 7, the one end of valve rod 6 is provided with check protection architecture 8.

Further, stop gear 7 is including mounting groove 701, pivot 702, gag lever post 703, handle 704, first spacing groove 705 and second spacing groove 706, mounting groove 701 has been seted up on the outside surface of end cover 3, the inboard surface fixedly connected with pivot 702 of mounting groove 701, the outside surface rotation of pivot 702 is connected with gag lever post 703, the outside surface fixedly connected with handle 704 of gag lever post 703, mounting groove 701 has first spacing groove 705 has been seted up on the outside surface of end cover 3, mounting groove 701 has second spacing groove 706 has been seted up on the outside surface of end cover 3, through the setting of mounting groove 701, pivot 702, gag lever post 703, handle 704, first spacing groove 705 and second spacing groove 706, can open disk seat 801 through manual rotation valve rod 6, make fluid pass through, and it is spacing with valve rod 6 through gag lever post 703, make disk seat 801 keep open state always, gag lever post 703 is rotatory and install in mounting groove 701 inside, the gag lever post 703 is spacing by first spacing groove 705 and second spacing groove 706 of end cover 3 top, make gag lever post 703 can not remove 6, can make valve seat 801 keep open state constantly after the disk seat 801 has reached under the circumstances that the check valve seat is opened, the effect of using, can not be reached under the circumstances.

Further, the mounting groove 701 is penetrated by the first limiting groove 705, the second limiting groove 706 and the limiting rod 703 are matched for use, and the limiting rod 703 is limited by the first limiting groove 705 and the second limiting groove 706 formed in the top of the end cover 3, so that the limiting rod 703 does not move after limiting the valve rod 6.

Further, the check protection structure 8 comprises a valve seat 801, a valve core 802, an elastic gasket 803 and an elastic sleeve 804, wherein one end of the valve seat 801 is fixedly connected with the valve core 802, the elastic gasket 803 is sleeved on the outer side surface of the valve core 802, the elastic sleeve 804 is sleeved on the outer side surface of the valve rod 6, the valve seat 801, the valve core 802, the elastic gasket 803 and the elastic sleeve 804 are arranged, when the fluid flow is overlarge in the use process, the fluid rapidly washes the valve seat 801 out to drive the valve rod 6 to rapidly knock against the inner wall, the elastic sleeve 804 wrapped on the outer side surface of the valve rod 6 reduces the stress of the valve rod 6, so that the loss of the valve rod 6 is reduced, and the valve rod 6 is reduced under the influence of liquid corrosion, and when the valve seat 801 drives the valve core 802 to open and close, the elastic gasket 803 reduces the force of the valve core 802 to collide against the inner wall of the check valve body 1, so that the loss is reduced and the influence of liquid corrosion is reduced.

Further, the elastic gasket 803 is made of rubber, the elastic sleeve 804 is made of rubber, the elastic gasket 803 and the elastic sleeve 804 protect the valve seat 801, the valve core 802 and the valve stem 6, reduce the force applied during impact, and have a certain corrosion resistance.

Working principle: the flange plate 2 is fixedly connected to two sides of the check valve main body 1, the end cover 3 is fixedly connected to the top of the check valve main body 1, the fixing sleeve 4 is fixedly connected to one side of the check valve main body 1, one end of the fixing sleeve 4 is in threaded connection with the hexagon bolt 5, the valve rod 6 is rotatably connected to the outer side surface of the fixing sleeve 4, the limit mechanism 7 is arranged at the top of the end cover 3, the check protection structure 8 is arranged at one end of the valve rod 6, the limit mechanism 7 comprises a mounting groove 701, a rotating shaft 702, a limit rod 703, a handle 704, a first limit groove 705 and a second limit groove 706, the valve seat 801 can be opened by manually rotating the valve rod 6, fluid can pass through, the valve rod 6 is limited by the limit rod 703, the valve seat 801 is always kept in an open state, the limit rod 703 rotates around the rotating shaft 702 and is mounted inside the mounting groove 701 through the rotating shaft 702, the limit rod 703 is limited by the first limit groove 705 and the second limit groove 706 formed at the top of the end cover 3, so that the limit rod 703 can not move after limiting the valve rod 6, the valve rod 6 can drive the valve seat 801 to keep an open state all the time, the effect that fluid can pass through the check valve under the condition of insufficient flow is achieved, the check protection structure 8 comprises the valve seat 801, the valve core 802, the elastic gasket 803 and the elastic sleeve 804, when the fluid flow is overlarge, the fluid can quickly flush the valve seat 801, drive the valve rod 6 to quickly push against the inner wall, the elastic sleeve 804 wrapped on the outer side surface of the valve rod 6 can reduce the stress of the valve rod 6, the loss of the valve rod 6 is reduced, and the influence of liquid corrosion is reduced by the valve rod 6, when the valve seat 801 drives the valve core 802 to open and close, the elastic gasket 803 reduces the force of the valve core 802 to impact the inner wall of the check valve body 1, the loss is reduced and the influence of liquid corrosion is reduced, thus, a novel swing check valve is completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a novel swing check valve, includes check valve main part (1) and stop gear (7), and wherein stop gear (7) are including mounting groove (701), pivot (702), gag lever post (703), handle (704), first spacing groove (705) and second spacing groove (706), its characterized in that: the novel check valve comprises a check valve body (1), wherein flange plates (2) are fixedly connected to two sides of the check valve body (1), an end cover (3) is fixedly connected to the top of the check valve body (1), a fixing sleeve (4) is fixedly connected to one side of the check valve body (1), a hexagonal bolt (5) is connected to one end of the fixing sleeve (4) in a threaded mode, a valve rod (6) is connected to the outer side surface of the fixing sleeve (4) in a rotating mode, a limiting mechanism (7) is arranged at the top of the end cover (3), and a check protection structure (8) is arranged at one end of the valve rod (6).

2. The novel swing check valve according to claim 1, wherein: stop gear (7) are including mounting groove (701), pivot (702), gag lever post (703), handle (704), first spacing groove (705) and second spacing groove (706), mounting groove (701) have been seted up on the outside surface of end cover (3), the inboard fixedly connected with pivot (702) of mounting groove (701), the outside surface rotation of pivot (702) is connected with gag lever post (703), the outside fixedly connected with handle (704) of gag lever post (703), mounting groove (701) have first spacing groove (705) have been seted up on the outside surface of end cover (3), mounting groove (701) have second spacing groove (706) have been seted up on the outside surface of end cover (3).

3. The novel swing check valve according to claim 2, wherein: the mounting groove (701) is penetrated by a first limit groove (705), and the first limit groove (705), a second limit groove (706) and the limit rod (703) are matched for use.

4. The novel swing check valve according to claim 1, wherein: the check protection structure (8) comprises a valve seat (801), a valve core (802), an elastic gasket (803) and an elastic sleeve (804), wherein one end of the valve seat (801) is fixedly connected with the valve core (802), the elastic gasket (803) is sleeved on the outer side surface of the valve core (802), and the elastic sleeve (804) is sleeved on the outer side surface of the valve rod (6).

5. The novel swing check valve according to claim 4, wherein: the elastic gasket (803) is made of rubber, and the elastic sleeve (804) is made of rubber.