CN218408658U

CN218408658U - Low flow resistance check valve

Info

Publication number: CN218408658U
Application number: CN202222737961.3U
Authority: CN
Inventors: 卢泾杉; 王子嵩
Original assignee: Heilongjiang Muling Power Station Valve Co ltd
Current assignee: Heilongjiang Muling Power Station Valve Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-31
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a low flow resistance check valve, include: a valve housing and an adjustment mechanism; a plate body is fixedly connected to the inner side wall of the valve shell, a movable rod is connected to the inside of the plate body in a sliding mode, one end of the movable rod is fixedly connected with a check valve, the check valve is tightly attached to the inner side wall of the valve shell, a second spring is sleeved on the movable rod, and two ends of the second spring are fixedly connected with the check valve and the plate body respectively; according to the low-flow-resistance check valve, the adjusting mechanism is arranged on the valve shell, so that after the rotating shaft drives the rod body to rotate through the driving bevel gear and the driven bevel gear, the threaded rod can drive the barrel to move, so that a gap between the movable block and the inner wall of the valve shell can be changed, water flow inside the valve shell can be controlled, and after the outer wall of the movable block is attached to the valve shell, the inside of the valve shell can be separated, so that a function of stopping water flow can be achieved; through the above arrangement, the waste of water resources is avoided, and the service function of the check valve is improved.

Description

Low flow resistance check valve

Technical Field

The utility model relates to the technical field of valves, specifically be a low flow resistance check valve.

Background

As is well known, a check valve is a valve in which an opening and closing member is a circular valve flap and operates by its own weight and pressure of a medium to block the reverse flow of the medium. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve.

Through retrieval, by the patent of chinese patent net publication No. CN209245371U, a low flow resistance vertical check valve is disclosed, including the valve body, the inner wall of valve body links firmly seal assembly, seal assembly include with the coaxial disk seat, sealing washer, guide holder, case, reset spring that sets up of valve body, the disk seat links firmly the guide holder head, the disk seat with the centre gripping is fixed between the guide holder the sealing washer, the case includes sealing portion and bracing piece, sealing portion adaptation the sealing washer, the bracing piece suit is in the guide hole of guide holder afterbody, reset spring is located sealing portion with between the guide holder. The utility model discloses it is sealed reliable, simple structure, easy to assemble, sealed non-maintaining can effectively solve prior art's valve installation inconvenient, reveal easily, flow backwards scheduling problem.

However, the above patents have disadvantages in that: when the low flow resistance check valve that mentions in this patent uses in the high-rise building feedwater network management, because this check valve function is comparatively single, the user of being not convenient for comes the function of control regulation to the flow of water according to the demand of water consumption to also do not possess the function that carries out ending to rivers, and then cause the waste of water resource easily, thereby make the service function of check valve remain to promote, for this reason, we provide a low flow resistance check valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low flow resistance check valve to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a low flow resistance check valve comprising: a valve housing and an adjustment mechanism;

a plate body is fixedly connected to the inner side wall of the valve shell, a movable rod is connected to the inside of the plate body in a sliding mode, one end of the movable rod is fixedly connected with a check valve, the check valve is tightly attached to the inner side wall of the valve shell, a second spring is sleeved on the movable rod, and two ends of the second spring are fixedly connected with the check valve and the plate body respectively;

the adjusting mechanism is characterized in that the adjusting mechanism is used for packaging a rotating shaft which is rotationally connected to the inside of the valve shell and a supporting plate which is fixedly connected to the inner side wall of the valve shell, the inside of the supporting plate is rotationally connected with a rod body, one end of the rod body is fixedly connected with a driven bevel gear, the outer side of the driven bevel gear is engaged and connected with a driving bevel gear, one side of the driving bevel gear is fixedly connected with the rotating shaft, the adjusting mechanism further comprises a barrel which is movably connected to the inner side wall of the valve shell, the inner wall of the barrel is in threaded connection with a threaded rod, one end of the rod body extends to the inside of the barrel and is fixedly connected with the threaded rod, and one end of the barrel is fixedly connected with a movable block; the adjusting mechanism is used for adjusting and controlling the water flow in the valve body.

By adopting the technical scheme, when water flows enter the interior of the valve shell, the water flow can impact the check valve, so that the check valve can drive the movable rod to move on the plate body towards the direction of the interior of the valve shell, the water flows can enter the interior of the valve shell, and when the water flows stop, the movable rod can reset under the action of the spring, so that the check valve can restore to the initial position, and the water in the interior of the valve shell can not flow back; when needs are controlled the inside discharge of getting into the valve casing, can drive initiative conical tooth wheel clockwise or anticlockwise rotation through the pivot to make driven conical tooth wheel drive the body of rod and rotate, the body of rod can drive the threaded rod and rotate, makes the barrel can drive the movable block under the threaded rod effect and remove, makes the gap between movable block and the valve casing change, and then makes discharge can obtain controlling.

Preferably, the spout has been seted up to the inside wall of valve casing, the inside wall sliding connection of spout has the slider, one side of slider is through connecting plate fixed connection on the lateral wall of barrel.

Through adopting above-mentioned technical scheme, can make the barrel move on the valve casing more steadily.

Preferably, the fixed cover of outer wall of pivot is equipped with limit gear, the lateral wall of valve casing is connected with the clamp splice through the support rotation, insert in the crack of limit gear tooth one side of clamp splice, the first spring of opposite side fixedly connected with of clamp splice, the one end and the valve casing fixed connection of first spring.

By adopting the technical scheme, the clamping block can be inserted into a gear gap of the limiting gear under the action of the stretching force of the first spring in a normal state, so that the limiting gear is fixed, the rotating shaft cannot rotate, and the position of the movable block can be positioned; when the position of the movable block needs to be changed, the clamping block can be pulled out from the gear seam of the limiting gear, and then the rotating shaft can normally rotate.

Preferably, one side of the clamping block is fixedly connected with a handle.

Through adopting above-mentioned technical scheme, can be convenient for pull the clamp splice.

Preferably, one end of the rotating shaft, which is positioned outside the valve housing, is fixedly connected with a knob.

Through adopting above-mentioned technical scheme, can be convenient for rotate the countershaft.

Preferably, the cover is equipped with first sealing washer in the pivot, first sealing washer fixed connection is on the inside wall of valve casing, the cover is equipped with the second sealing washer on the body of rod, second sealing washer fixed connection is on the inside wall of barrel.

Through adopting above-mentioned technical scheme, can avoid water to enter into the gap of pivot and valve casing, also can avoid water to enter into inside the barrel.

Preferably, a third sealing ring is fixedly sleeved on the outer side of the movable block.

Through adopting above-mentioned technical scheme, when the outer wall of movable block and valve casing inner wall laminated completely, the third sealing washer can play sealed effect, and then can realize the function of stop valve.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the low-flow-resistance check valve, the adjusting mechanism is arranged on the valve shell, so that after the rotating shaft drives the rod body to rotate through the driving bevel gear and the driven bevel gear, the threaded rod can drive the barrel to move, so that a gap between the movable block and the inner wall of the valve shell can be changed, water flow inside the valve shell can be controlled, and after the outer wall of the movable block is attached to the valve shell, the inside of the valve shell can be separated, so that a function of stopping water flow can be achieved; through the above arrangement, the waste of water resources is avoided, and the service function of the check valve is improved.

Drawings

FIG. 1 is a schematic structural view of a low flow resistance check valve of the present invention;

FIG. 2 is an enlarged view of the area A of the structure of the low flow resistance check valve of the present invention;

FIG. 3 is an enlarged schematic view of the area B of the structural schematic view of the low flow resistance check valve of the present invention;

fig. 4 is a schematic structural view of the movable block and the cylinder in the low flow resistance check valve of the present invention.

In the figure: 1. a valve housing; 2. an adjustment mechanism; 20. a support plate; 21. a rotating shaft; 22. a driving bevel gear; 23. a driven bevel gear; 24. a rod body; 25. a threaded rod; 26. a barrel; 27. a connecting plate; 28. a movable block; 29. a limit gear; 201. a support; 202. a clamping block; 203. a first spring; 204. a handle; 205. a knob; 206. a first seal ring; 207. a chute; 208. a slider; 209. a second seal ring; 210. a third seal ring; 3. a check flap; 4. a second spring; 5. a movable rod; 6. a plate body.

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. 1-4, the present invention provides a technical solution: a low flow resistance check valve comprising: a valve housing 1 and an adjusting mechanism 2; the adjusting mechanism 2 is used for adjusting and controlling the water flow in the valve body;

firstly, when water flows enter the valve casing 1, the check valve 3 can be impacted, so that the check valve 3 can drive the movable rod 5 to move on the plate body 6 towards the direction inside the valve casing 1, the water flows can enter the valve casing 1, when the water flows stop, the movable rod 5 can reset under the action of a spring, the check valve 3 can be restored to the initial position, and the water inside the valve casing 1 cannot flow back; a plate body 6 is fixedly connected to the inner side wall of the valve casing 1, a movable rod 5 is slidably connected to the inside of the plate body 6, one end of the movable rod 5 is fixedly connected with a check valve 3, the check valve 3 is tightly attached to the inner side wall of the valve casing 1, a second spring 4 is sleeved on the movable rod 5, and two ends of the second spring 4 are fixedly connected with the check valve 3 and the plate body 6 respectively;

secondly, when the water flow entering the valve casing 1 needs to be controlled, the rotating shaft 21 can drive the driving bevel gear 22 to rotate clockwise or anticlockwise, so that the driven bevel gear 23 can drive the rod body 24 to rotate, the rod body 24 can drive the threaded rod 25 to rotate, the cylinder 26 can drive the movable block 28 to move under the action of the threaded rod 25, the gap between the movable block 28 and the valve casing 1 can be changed, and the water flow can be controlled; the adjusting mechanism 2 is used for packaging a rotating shaft 21 which is rotatably connected to the inside of the valve casing 1 and a supporting plate 20 which is fixedly connected to the inner side wall of the valve casing 1, the inside of the supporting plate 20 is rotatably connected with a rod body 24, one end of the rod body 24 is fixedly connected with a driven bevel gear 23, the outer side of the driven bevel gear 23 is meshed with a driving bevel gear 22, one side of the driving bevel gear 22 is fixedly connected with the rotating shaft 21, the adjusting mechanism 2 further comprises a barrel 26 which is movably connected to the inner side wall of the valve casing 1, the inner wall of the barrel 26 is in threaded connection with a threaded rod 25, one end of the rod body 24 extends into the barrel 26 and is fixedly connected with the threaded rod 25, and one end of the barrel 26 is fixedly connected with a movable block 28; in order to enable the cylinder 26 to move on the valve housing 1 more stably, the inner side wall of the valve housing 1 is provided with a sliding groove 207, the inner side wall of the sliding groove 207 is connected with a sliding block 208 in a sliding manner, and one side of the sliding block 208 is fixedly connected to the outer side wall of the cylinder 26 through a connecting plate 27; in order that the clamping block 202 can be inserted into the tooth gap of the limiting gear 29 under the action of the stretching force of the first spring 203 under the normal state, the limiting gear 29 is fixed, the rotating shaft 21 cannot rotate, and the position of the movable block 28 can be positioned; when the position of the movable block 28 needs to be changed, the clamping block 202 can be pulled out from the tooth gap of the limit gear 29, so that the rotating shaft 21 can normally rotate, the limit gear 29 is fixedly sleeved on the outer wall of the rotating shaft 21, the outer side wall of the valve casing 1 is rotatably connected with the clamping block 202 through the support 201, one side of the clamping block 202 is inserted into the tooth gap of the limit gear 29, the other side of the clamping block 202 is fixedly connected with the first spring 203, and one end of the first spring 203 is fixedly connected with the valve casing 1; in order to facilitate pulling of the clamping block 202, a handle 204 is fixedly connected to one side of the clamping block 202; in order to facilitate the rotation of the rotating shaft 21, a knob 205 is fixedly connected to one end of the rotating shaft 21, which is located outside the valve housing 1; in order to prevent water from entering a gap between the rotating shaft 21 and the valve casing 1 and also prevent water from entering the cylinder 26, a first sealing ring 206 is sleeved on the rotating shaft 21, the first sealing ring 206 is fixedly connected to the inner side wall of the valve casing 1, a second sealing ring 209 is sleeved on the rod body 24, and the second sealing ring 209 is fixedly connected to the inner side wall of the cylinder 26; in order to ensure that the third sealing ring 210 can perform a sealing function when the outer wall of the movable block 28 is completely attached to the inner wall of the valve housing 1, and further realize the function of a stop valve, the third sealing ring 210 is fixedly sleeved on the outer side of the movable block 28.

According to the technical scheme, the working steps of the scheme are summarized and carded: when water flows enter the valve casing 1, the check valve 3 can be impacted, so that the check valve 3 can drive the movable rod 5 to move on the plate body 6 towards the direction inside the valve casing 1, the water flows can enter the valve casing 1, when the water flows stop, the movable rod 5 can reset under the action of the spring, the check valve 3 can be restored to the initial position, and the water inside the valve casing 1 cannot flow back; when the water flow entering the valve casing 1 needs to be controlled, the driving bevel gear 22 can be driven to rotate clockwise or anticlockwise through the rotating shaft 21, so that the driven bevel gear 23 can drive the rod body 24 to rotate, the rod body 24 can drive the threaded rod 25 to rotate, the cylinder body 26 can drive the movable block 28 to move under the action of the threaded rod 25, a gap between the movable block 28 and the valve casing 1 can be changed, and the water flow can be controlled; in addition, when the outer wall of the movable block 28 is completely attached to the inner wall of the valve housing 1, the third seal ring 210 can perform a sealing function, and thus can perform a function of blocking the inside of the valve housing 1.

To sum up: according to the low-flow-resistance check valve, the adjusting mechanism 2 is arranged on the valve casing 1, so that after the rotating shaft 21 drives the rod body 24 to rotate through the driving bevel gear 22 and the driven bevel gear 23, the threaded rod 25 can drive the cylinder body 26 to move, the gap between the movable block 28 and the inner wall of the valve casing 1 can be changed, the water flow inside the valve casing 1 can be controlled, and after the outer wall of the movable block 28 is attached to the valve casing 1, the inside of the valve casing 1 can be separated, so that the function of stopping the water flow can be achieved; through the above arrangement, the waste of water resources is avoided, and the service function of the check valve is improved.

The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. 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 low flow resistance check valve, comprising: a valve shell (1) and an adjusting mechanism (2);

a plate body (6) is fixedly connected to the inner side wall of the valve casing (1), a movable rod (5) is connected to the inner portion of the plate body (6) in a sliding mode, a check valve (3) is fixedly connected to one end of the movable rod (5), the check valve (3) is tightly attached to the inner side wall of the valve casing (1), a second spring (4) is sleeved on the movable rod (5), and two ends of the second spring (4) are fixedly connected with the check valve (3) and the plate body (6) respectively;

adjustment mechanism (2) packing is rotated and is connected backup pad (20) on valve casing (1) inside pivot (21) and fixed connection on valve casing (1) inside wall, the inside rotation of backup pad (20) is connected with the body of rod (24), the driven conical gear (23) of the one end fixedly connected with of the body of rod (24), the outside meshing of driven conical gear (23) is connected with initiative conical gear (22), one side and pivot (21) fixed connection of initiative conical gear (22), adjustment mechanism (2) still include barrel (26) of swing joint on valve casing (1) inside wall, the inner wall threaded connection of barrel (26) has threaded rod (25), the one end of the body of rod (24) extends to the inside of barrel (26) and with threaded rod (25) fixed connection, the one end fixedly connected with movable block (28) of barrel (26).

2. A low flow resistance check valve as claimed in claim 1 wherein: spout (207) have been seted up to the inside wall of valve casing (1), the inside wall sliding connection of spout (207) has slider (208), one side of slider (208) is through connecting plate (27) fixed connection on the lateral wall of barrel (26).

3. A low flow resistance check valve as claimed in claim 1 wherein: the fixed cover of outer wall of pivot (21) is equipped with limit gear (29), the lateral wall of valve casing (1) is rotated through support (201) and is connected with clamp splice (202), insert in the crack of limit gear (29) one side of clamp splice (202), the first spring of opposite side fixedly connected with (203) of clamp splice (202), the one end and valve casing (1) fixed connection of first spring (203).

4. A low flow resistance check valve as claimed in claim 3 wherein: one side of the clamping block (202) is fixedly connected with a handle (204).

5. A low flow resistance check valve as claimed in claim 3 wherein: the one end fixedly connected with knob (205) that pivot (21) are located valve casing (1) outside.

6. The low flow resistance check valve of claim 5 wherein: the cover is equipped with first sealing washer (206) in pivot (21), first sealing washer (206) fixed connection is on the inside wall of valve casing (1), the cover is equipped with second sealing washer (209) on the body of rod (24), second sealing washer (209) fixed connection is on the inside wall of barrel (26).

7. A low flow resistance check valve as claimed in claim 1 wherein: and a third sealing ring (210) is fixedly sleeved on the outer side of the movable block (28).