CN215445276U

CN215445276U - Straight-through one-way check valve

Info

Publication number: CN215445276U
Application number: CN202121484707.6U
Authority: CN
Inventors: 葛本祥; 杨新
Original assignee: Juchuang Shanghai Fluid Technology Co ltd
Current assignee: Juchuang Shanghai Fluid Technology Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-01-07
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a straight-through one-way check valve. The straight-through one-way check valve comprises a valve body, a clamping cylinder, at least one guide rod, at least one plugging rod, a lifting plate, a first spring, water outlets matched with the plugging rods one by one, a check ring, a connecting rod and a floating ball. The screens cylinder is installed inside the valve body, and the middle part has seted up drainage channel. The guide rod is vertically arranged, and one end of the guide rod is fixedly arranged on the clamping cylinder. One end of the plugging rod is fixedly arranged on the clamping cylinder. The lifting plate is sleeved on the guide rod in a sliding manner. The first spring is sleeved on the guide rod between the lifting plate and the clamping cylinder. The water outlet is arranged on the lifting plate. One end of the connecting rod is fixedly arranged on the lifting plate. The floating ball is fixedly sleeved outside the connecting rod and is matched with the check ring. Through forming the two-stage non return, improved the leakproofness greatly, prevent against the current, simultaneously, the two-stage non return is opened in step when having rivers process, does not influence normal rivers and passes through, has improved the practicality.

Description

Straight-through one-way check valve

Technical Field

The utility model relates to the technical field of valve equipment, in particular to a straight-through one-way check valve.

Background

The check valve functions to allow a medium to flow in one direction only and to prevent the medium from flowing in the opposite direction, and generally, the valve automatically operates such that a valve flap is opened by a fluid pressure flowing in one direction, and a valve seat is acted on by the fluid pressure and the valve flap's own weight to shut off the flow when the fluid flows in the opposite direction.

At present, most of straight-through check valves are generally only provided with one-stage check, when sealing is in problem, incomplete truncation can occur during circulation, and leakage can be caused.

SUMMERY OF THE UTILITY MODEL

Therefore, a straight-through one-way check valve is needed to solve the problems of incomplete cutting and leakage when the existing one-stage check valve has a sealing problem.

A straight-through one-way check valve. The straight-through one-way check valve comprises a valve body, a clamping cylinder, at least one guide rod, at least one plugging rod, a lifting plate, a first spring, water outlets matched with the plugging rods one by one, a check ring, a connecting rod and a floating ball.

The clamping cylinder is arranged inside the valve body, and the middle part of the clamping cylinder is provided with a drainage channel; the guide rod is vertically arranged, and one end of the guide rod is fixedly arranged on the clamping cylinder; one end of the plugging rod is fixedly arranged on the clamping cylinder. The rod diameter of the blocking rod is gradually reduced from one end close to the clamping cylinder to the other end; the lifting plate is sleeved on the guide rod in a sliding manner; the first spring is sleeved on the guide rod between the lifting plate and the clamping cylinder; the water outlet is arranged on the lifting plate, and the aperture of the water outlet is gradually reduced from one side close to the plugging rod to the other side; the check ring is arranged at one end of the clamping cylinder and communicated with the drainage channel; the connecting rod and the check ring are coaxially arranged, and one end of the connecting rod is fixedly arranged on the lifting plate; the floating ball is fixedly sleeved outside the connecting rod and is matched with the check ring.

Above-mentioned lifter plate passes through the guide arm and first spring is connected with the screens cylinder, when rivers are by drainage channel through the check ring, the pressure of rivers drives the floater decline, make the lifter plate descend, thereby the shutoff pole breaks away from the delivery port, rivers are discharged via check ring and delivery port, when not having rivers, under the effect of first spring, the lifter plate resets, shutoff pole shutoff delivery port, floater shutoff check ring, form the two-stage non return, the leakproofness has been improved greatly, prevent against the current, and simultaneously, the two-stage non return is opened in step when having rivers process, do not influence normal rivers and pass through, and the practicality is improved.

Specifically, a sealing ring is arranged on the outer wall of the plugging rod.

In one embodiment, a fixing rod is installed at one end, far away from the clamping cylinder, of the guide rod, a lower ejector rod is installed at one side, close to the lifting plate, of the fixing rod, and the lower ejector rod and the water outlet are coaxially arranged.

In one embodiment, a lower pressing rod is fixedly installed at one end, close to the lifting plate, of the blocking rod, and the lower pressing rod is arranged coaxially with the water outlet.

Specifically, the lower ejector rod and the lower pressing rod are provided with sharp corners at the ends close to the water outlet.

In one embodiment, an anti-blocking component is arranged between the clamping cylinder and the connecting rod, and comprises a cavity, a first through hole, a water outlet and filter plates which are symmetrical along the center of the connecting rod; the cavity is arranged in the clamping cylinder; the first through hole is formed in the clamping cylinder; the first through hole is used for communicating the cavity with the drainage channel; the water outlet is formed in the clamping cylinder and located below the first through hole, and a filter screen is arranged at the water outlet; the water outlet is used for communicating the cavity with the water drainage channel; the filter plates are centrosymmetric along the connecting rod. The filter plate includes: the sleeve, the sliding plate and the second spring are obliquely arranged; one end of the sleeve, which is positioned at the high position, is fixedly arranged at one end of the connecting rod, which is far away from the lifting plate, and the other end, which is positioned at the low position, is provided with a sliding groove; the sleeve is in sliding contact with the inner wall of the drainage channel; one end of the sliding plate is arranged in the sliding groove in a sliding mode, and the other end of the sliding plate is bent towards one side far away from the connecting rod and is in sliding contact with the inner wall of the drainage channel; the second spring is disposed between the sleeve and the sliding plate.

Wherein, the sleeve and the sliding plate are both provided with water holes for draining water.

In one embodiment, the aperture of the drainage channel is gradually reduced along the direction from the clamping cylinder to the lifting plate.

In one embodiment, the valve body comprises an upper valve body and a lower valve body, wherein the upper valve body and the lower valve body are respectively provided with a matched assembling hole and are connected through assembling holes and bolts.

Specifically, first holding tank has been seted up to the last valve body, the second holding tank has been seted up to lower valve body, screens cylinder activity card is established in first holding tank and second holding tank.

Specifically, a sealing gasket is arranged between the clamping cylinder and the upper valve body.

Compared with the prior art, the utility model has the following effects:

Drawings

Fig. 1 is a schematic structural view of a straight-through one-way check valve.

FIG. 2 is a top view of a straight-through one-way check valve.

Fig. 3 is a schematic view showing the structure of a filter plate in the straight-through one-way check valve.

Fig. 4 is an enlarged view of the straight one-way check valve at a.

Description of the main elements

1-valve body, 2-upper valve body, 3-clamping cylinder, 4-first through hole, 5-cavity, 6-water outlet, 7-lower valve body, 8-connecting rod, 9-sealing ring, 10-check ring, 11-floating ball, 12-blocking rod, 13-lifting plate, 14-water outlet, 15-fixing rod, 16-lower ejector rod, 17-guide rod, 18-first spring, 19-lower pressing rod, 20-assembling hole, 21-drainage channel, 22-filter plate, 2201-sleeve plate, 2202-sliding groove, 2203-second spring, 2204-sliding plate, 23-sealing pad, 24-first accommodating groove and 25-second accommodating groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a straight one-way check valve. The straight-through one-way check valve comprises a valve body 1, a clamping cylinder 3, at least one guide rod 17, at least one blocking rod 12, a lifting plate 13, a first spring 18, water outlets 14 matched with the blocking rods one by one, a check ring 10, a connecting rod 8, a floating ball 11 and the like. Of course, valve body 1 is the integral type or split type all can, and in this embodiment, the valve body is split type, and valve body 1 includes valve body 2 and lower valve body 7, goes up valve body 2 and lower valve body 7 and dismantles the connection, is convenient for wash valve body inside. In this embodiment, the upper valve body 2 and the lower valve body 7 are provided with assembly holes 20, and the upper valve body and the lower valve body can be fixed by bolting through the assembly holes 20.

The screens cylinder 3 is installed inside the valve body 1, and the middle part is provided with a drainage channel 21. Considering that the check structure influences the passing of the water body, in the embodiment, the hole diameter of the drainage channel 21 is gradually reduced along the direction from the clamping cylinder 3 to the lifting plate 13, so that the pressure of the water flow is increased, and the water body can conveniently pass through the check structure.

The guide rod 17 is vertically arranged, and one end of the guide rod is fixedly arranged on the clamping cylinder 3. Meanwhile, the guide rod 17 movably penetrates through the lifting plate 13. The first spring 18 is movably sleeved outside the guide rod 17, and two ends of the first spring are respectively connected with the lifting plate 13 and the clamping cylinder 3, and the first spring is used for resetting the lifting plate 13 when water flows through the lifting plate.

In the present embodiment, one end of the blocking rod 12 is fixedly mounted on the locking cylinder 3. Of course, the rod diameter of the plugging rod 12 gradually decreases from one end close to the clamping cylinder to the other end. The delivery port 14 is opened on the lifter plate 13, the aperture of the delivery port 14 is gradually reduced from one side close to the plugging rod 12 to the other side, and when the water flow is stopped, the plugging rod 12 is continuously attached to the delivery port 14 along with the continuous rising of the lifter plate 13, so that the primary stopping is realized. Of course, a sealing treatment may be performed to improve the sealing property, and in this embodiment, the sealing ring 9 is provided outside the stem 12 to improve the sealing property. In consideration of the normal flow of water, in this embodiment, the size and the number of the water outlets 14 may be adjusted according to actual needs.

In this embodiment, the check ring 10 is installed at one end of the locking cylinder 3 and is communicated with the drainage channel 21. The connecting rod 8 and the check ring 10 are coaxially arranged, and one end of the connecting rod is fixedly arranged on the lifting plate 13. The floating ball 11 is fixedly sleeved outside the connecting rod 8 and is matched with the check ring 10, and when the lifting plate 13 ascends, the floating ball 11 can block the check ring 10.

The lifter plate 13 of this embodiment is connected with screens cylinder 3 through guide arm 17 and first spring 18, when rivers are by drainage channel 21 through check ring 10, the pressure of rivers drives floater 11 and descends, make lifter plate 13 descend, thereby shutoff pole 12 breaks away from delivery port 14, rivers discharge via check ring 10 and delivery port 14, when not having rivers, under first spring 18's effect, lifter plate 13 resets, shutoff pole 12 shutoff delivery port 14, floater 11 shutoff check ring 10, form the two-stage non return, the leakproofness has been improved greatly, prevent against the current, simultaneously, the two-stage non return is opened in step when having rivers to pass through, do not influence normal rivers and pass through, the practicality has been improved.

Example 2

The embodiment is improved on the basis of embodiment 1, and the improvement is that: and a fixed rod 15 is arranged at one end of the guide rod 17 far away from the clamping cylinder 3. The fixing rod 15 is provided with a lower mandril 16 at one side close to the lifting plate 13. The lower mandril 16 and the water outlet 14 are coaxially arranged. When garbage is blocked in the water outlet 14, the pressure of the water flow of the lifting plate 13 is continuously increased to drive the lifting plate 13 to descend, so that the lower ejector rod 16 can eject the garbage, the water flow is released, and the practicability is improved. Of course, the lower prop 16 has the best effect when the end near the water outlet 14 is provided with a sharp corner, so that the garbage can be damaged and can pass through the water outlet 14.

In this embodiment, a lower pressing rod 19 is fixedly installed at one end of the blocking rod 12 close to the lifting plate 13, and the lower pressing rod 19 is coaxial with the water outlet 14. Considering that the lower ejector rod 16 can eject the garbage, the garbage is still accumulated above the lifting plate 13, and the water outlet 14 is blocked by the garbage after the water flow flows away, at this time, the lower ejector rod 19 is arranged, and the garbage can be extruded by the lower ejector rod 19 when the lifting plate 13 is reset. Of course, when the end of the lower press rod 19 close to the water outlet 14 is provided with a sharp corner, the effect is best, the garbage can be damaged, and the influence of the garbage on the next valve body through which water flows is avoided.

According to the embodiment, by arranging the lower ejector rod 16 and the lower pressing rod 19, when garbage exists in water flow and the water outlet 14 is blocked, the lower ejector rod 16 and the lower pressing rod 19 can help the water flow to normally pass through the water outlet 14, the garbage is extruded from the water outlet 14, and the valve body is ensured not to influence the normal passing of the water flow.

Example 3

Referring to fig. 3, the difference between the present embodiment and embodiment 2 is: be provided with between screens cylinder 3 and the connecting rod 8 and prevent stifled subassembly, prevent stifled subassembly including cavity 5, first through-hole 4, outlet 6 and along connecting rod centrosymmetric filter 22 etc.. The cavity 5 is arranged in the clamping cylinder 3. The first through hole 4 is opened on the screens cylinder 3. The first through hole 4 is for communicating the cavity 5 with the drain passage 21. The water outlet 6 is arranged on the clamping cylinder 3 and is positioned below the first through hole 4, and a filter screen is arranged at the water outlet 6; the drain port is used for communicating the cavity 5 with the drain passage 21.

In this embodiment, the filter plate 22 includes an obliquely disposed sleeve 2201, a slide plate 2204, and a second spring 2203. The sleeve 2201 is located the eminence one end fixed mounting and is kept away from lifter plate 13 one end at connecting rod 8, is located low department one end and has seted up spout 2202. The sleeve 2201 is in sliding contact with the inner wall of the drainage passage 21. One end of the sliding plate 2204 is slidably disposed in the sliding groove 2202, and the other end is bent to the side away from the connecting rod 8 and is in sliding contact with the inner wall of the drainage channel 21. The second spring is disposed between the sleeve and the sliding plate. Wherein, the sleeve 2201 and the sliding plate 2204 are provided with water holes for draining water. When the lifting plate 13 is reset, the connecting rod 8 drives the filter plate 22 to ascend, one end of the sliding plate 2204 is always in contact with the inner wall of the drainage channel 21 under the action of the second spring 2203, the garbage in the water flow is continuously improved and enters the cavity 5 through the first through hole 4, meanwhile, the water flow can also directly enter the cavity 5 through the first through hole 4 and then is discharged from the water outlet 6, and the garbage is filtered by a filter screen in the water outlet 6.

Please refer to fig. 4, further, the upper valve body 2 and the lower valve body 7 are respectively provided with a first receiving groove 24 and a second receiving groove 25, the clamping cylinder 3 is clamped in the first receiving groove 24 and the second receiving groove 25, and when the upper valve body 2 and the lower valve body 7 are opened, the garbage in the cavity 5 can be cleaned. Of course, a sealing gasket 23 can also be provided between the locking cylinder 3 and the upper valve body 2 in order to improve the sealing.

In the embodiment, the anti-blocking component is arranged, when the lifting plate 13 is reset, the connecting rod 8 drives the filter plate 22 to ascend, one end of the sliding plate 2204 is always in contact with the inner wall of the drainage channel 21 under the action of the second spring 2203, the garbage in the water flow is continuously improved to enter the cavity 5 through the first through hole 4, meanwhile, the water flow can also directly enter the cavity 5 through the first through hole 4 and is discharged through the water outlet 6, and the garbage filtering is performed on the filter screen in the water outlet 6, so that the practicability is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A straight-through one-way check valve, which comprises a valve body (1), and is characterized by further comprising:

the clamping cylinder (3) is arranged inside the valve body (1), and the middle part of the clamping cylinder is provided with a drainage channel (21);

at least one guide rod (17) which is vertically arranged and one end of which is fixedly arranged on the clamping cylinder (3);

one end of the blocking rod (12) is fixedly arranged on the clamping cylinder (3), and the rod diameter of the blocking rod (12) is gradually reduced from one end close to the clamping cylinder (3) to the other end;

the lifting plate (13) is sleeved on the guide rod (17) in a sliding manner;

the first spring (18) is sleeved on the guide rod (17) between the lifting plate (13) and the clamping cylinder (3);

the water outlets (14) are matched with the plugging rods (12) one by one and are arranged on the lifting plate (13), and the aperture of each water outlet (14) is gradually reduced from one side close to the plugging rod (12) to the other side;

the check ring (10) is arranged at one end of the clamping cylinder (3) and communicated with the drainage channel (21);

the connecting rod (8) is coaxially arranged with the check ring (10), and one end of the connecting rod is fixedly arranged on the lifting plate (13); and

and the floating ball (11) is fixedly sleeved outside the connecting rod (8) and is matched with the check ring (10).

2. A straight-through one-way check valve according to claim 1, characterized in that the outer wall of the plugging rod (12) is provided with a sealing ring (9).

3. A straight-through one-way check valve according to claim 1, characterized in that a fixing rod (15) is installed at one end of the guide rod (17) far away from the clamping cylinder (3), a lower mandril (16) is installed at one side of the fixing rod (15) close to the lifting plate (13), and the lower mandril (16) is coaxially arranged with the water outlet (14).

4. A straight-through one-way check valve according to claim 3, characterized in that a lower pressing rod (19) is fixedly arranged at one end of the blocking rod (12) close to the lifting plate (13), and the lower pressing rod (19) is coaxially arranged with the water outlet (14).

5. A straight-through one-way check valve according to claim 4, characterized in that the lower ejector rod (16) and the lower pressure rod (19) are provided with sharp corners at the ends close to the water outlet (14).

6. A straight-through one-way check valve according to claim 1, characterized in that an anti-blocking assembly is arranged between the blocking cylinder (3) and the connecting rod (8), the anti-blocking assembly comprising:

the cavity (5) is arranged in the clamping cylinder (3);

the first through hole (4) is formed in the clamping cylinder (3) and is used for communicating the cavity (5) with the drainage channel (21);

the water outlet (6) is formed in the clamping cylinder (3) and is positioned below the first through hole (4), and a filter screen is arranged at the water outlet (6); the water outlet (6) is used for communicating the cavity (5) with the water drainage channel (21); and

along connecting rod (8) centrosymmetric filter plate (22), it includes:

the sleeve (2201) is obliquely arranged, one end of the sleeve, which is positioned at the high position, is fixedly arranged at one end, which is far away from the lifting plate (13), of the connecting rod (8), and the other end, which is positioned at the low position, is provided with a sliding groove (2202); the sleeve (2201) is in sliding contact with the inner wall of the drainage channel (21);

a sliding plate (2204) with one end arranged in the sliding groove (2202) in a sliding way and the other end bent to the side far away from the connecting rod (8) and in sliding contact with the inner wall of the drainage channel (21); and

a second spring (2203) disposed between the sleeve (2201) and the sliding plate (2204);

wherein, the sleeve (2201) and the sliding plate (2204) are provided with water holes for draining water.

7. Straight-through one-way check valve according to claim 1, characterized in that the aperture of the drainage channel (21) decreases gradually along the detent cylinder (3) in the direction of the lifting plate (13).

8. A straight-through one-way check valve according to claim 1, wherein the valve body (1) comprises an upper valve body (2) and a lower valve body (7), the upper valve body (2) and the lower valve body (7) are provided with matching assembly holes (20) and are connected through the assembly holes (20) by bolts.

9. A straight-through one-way check valve according to claim 8, wherein the upper valve body (2) is provided with a first receiving groove (24), the lower valve body (7) is provided with a second receiving groove (25), and the clamping cylinder (3) is movably clamped in the first receiving groove (24) and the second receiving groove (25).

10. A straight-through one-way check valve according to claim 9, characterized in that a sealing gasket (23) is arranged between the detent cylinder (3) and the upper valve body (2).