CN220185932U - Novel slow-closing check valve - Google Patents

Abstract

The utility model belongs to the field of check valves, in particular to a novel slow-closing check valve, which comprises a water inlet; the water hammer remover is characterized in that a shell main body is arranged above the water inlet, a water outlet is arranged on the side face of the shell main body, one end of a side pipe is connected to the side face of the water inlet, a water hammer remover is connected to the other end of the side pipe, an adjusting device is arranged on the top face of the inner wall of the shell main body in a penetrating manner, and a non-return device is arranged on the inner wall of the shell main body; when the valve is suddenly closed, the non-return plate and the slide tube descend, the contact area between the through hole on the side surface of the slide tube and the inner wall of the shell main body is reduced, and redundant water sources in the water inlet enter the shell main body through the through holes with gradually reduced contact area, so that the non-return plate has a slow descending effect, the water hammer eliminating effect of the device is improved, the threaded column is driven to descend by rotating the hand wheel, different pressure effects are generated by extruding the spring, and the situation that the non-return plate cannot be normally opened or closed due to too low pressure or too much pressure is reduced.

Description

Novel slow-closing check valve

Technical Field

The utility model relates to the field of check valves, in particular to a novel slow-closing check valve.

Background

The slow-closing check valve is also called as a check valve, and has the main function of preventing medium in a pipeline from flowing backwards, and is a valve which is opened or closed by a start-stop element by the medium flow and the force so as to prevent the medium from flowing backwards. The working principle of the slow-closing check valve is as follows: the hydraulic control pipe connecting system slow-closing check valve is composed of a main valve, a one-way valve, a needle valve, a ball valve, a micro-filter and a pressure gauge, and the main valve is automatically operated by utilizing the hydraulic power to obtain the most proper opening or closing speed so as to avoid the generation of water hammer, thereby achieving the effects of slow-closing and silencing.

One chinese patent with publication No. CN210566639U discloses a slow-closing check valve convenient for adjust, including slow-closing check valve body, the bottom fixed mounting of slow-closing check valve body has the rectangular plate, the lower surface of rectangular plate sets up flutedly, the recess is provided with two sets of, and two sets of recess symmetry sets up the lower surface at the rectangular plate, the bottom plate groove has been seted up to the one end of recess, just the other end of recess is connected with the telescopic link through the pivot rotation, the one end fixedly connected with bottom plate of telescopic link, just the telescopic link includes first branch and second branch, the bottom and the bottom plate fixed connection of first branch are in the same place, just the screw groove has been seted up to the upper end of first branch, the inside upper end opening part of screw groove is equipped with the baffle, just the inside threaded connection of screw groove has the external screw thread post, and the horizontal installation of slow-closing check valve can reach effectively and play fixed work to slow-closing check valve on the pipeline, and its technical scheme is characterized by:

with respect to the above and related art, the inventors believe that there are often the following drawbacks: the utility model is not easy to achieve, further increases the effect of eliminating the water hammer of the device, and is not easy to achieve, thereby being convenient for adapting to the working conditions of different pressures.

Therefore, a novel slow-closing check valve is provided for the problems.

Disclosure of Invention

In order to solve the problems that the water hammer eliminating effect of the device is further increased and the working conditions of different pressures are convenient to adapt to in the prior art, the utility model provides a novel slow-closing check valve.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a novel slow-closing check valve, which comprises a water inlet; the water hammer remover is characterized in that a shell main body is arranged above the water inlet, a water outlet is arranged on the side face of the shell main body, one end of a side pipe is connected to the side face of the water inlet, a water hammer remover is connected to the other end of the side pipe, an adjusting device is arranged on the top face of the inner wall of the shell main body in a penetrating mode, and a non-return device is arranged on the inner wall of the shell main body.

Preferably, the adjusting device comprises a hand wheel, a threaded column is fixedly arranged on the bottom surface of the hand wheel, a sleeve is clamped on the outer wall of the threaded column, and a spring is placed on the inner wall of the sleeve.

Preferably, the spring is smaller than the size of the sleeve, which is fixedly mounted to the top surface of the inner wall of the housing body.

Preferably, the non-return device comprises a non-return plate, a slide tube is fixedly arranged at the bottom of the non-return plate, and a through hole is formed in the surface of the slide tube.

Preferably, the number of the through holes is four, and the through holes are equidistantly distributed on the side face of the slide tube in a surrounding mode.

Preferably, the shape of the non-return device is matched with the shape of the bottom of the inner wall of the shell main body, and the size of the adjusting device is matched with the size of the non-return device.

Preferably, the upper end and the lower end of the threaded column are both provided with baffles, and the size of the baffles at the bottom of the threaded column is identical with the size of the inner wall of the sleeve.

The utility model has the advantages that:

1. according to the utility model, a water source enters the inner wall of the shell main body through the water inlet, when the water pressure reaches a certain degree, the water source props up the non-return plate and flows out of the water outlet through the through hole, when the valve is suddenly closed, the non-return plate descends with the slide tube, the contact area between the through hole on the side surface of the slide tube and the inner wall of the shell main body is reduced, and the redundant water source in the water inlet enters the shell main body through the through hole with gradually reduced contact area, so that the non-return plate generates a slow descending effect, and the water hammer eliminating effect of the device is increased;

2. according to the utility model, the threaded column is driven to descend by rotating the hand wheel, different pressure effects are generated by extruding the spring, the situation that the non-return plate cannot be normally opened or closed due to too low pressure or too much pressure is reduced, and the adaptability of the device in the working condition facing different pressures is increased.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a main structure of a housing according to the present utility model;

FIG. 2 is a schematic view of a water inlet structure of the present utility model;

FIG. 3 is a schematic view of the structure of the check device of the present utility model;

fig. 4 is a schematic structural view of an adjusting device of the present utility model.

In the figure: 1. a water inlet; 2. a housing main body; 3. a water outlet; 4. a side pipe; 5. a water hammer eliminator; 6. an adjusting device; 601. a hand wheel; 602. a threaded column; 603. a spring; 604. a sleeve; 7. a non-return device; 701. a non-return plate; 702. a slide tube; 703. and a through hole.

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. 1-4, a novel slow-closing check valve comprises a water inlet 1; a shell main body 2 is arranged above the water inlet 1, a water outlet 3 is arranged on the side surface of the shell main body 2, one end of a side pipe 4 is connected to the side surface of the water inlet 1, a water hammer eliminator 5 is connected to the other end of the side pipe 4, an adjusting device 6 is arranged on the top surface of the inner wall of the shell main body 2 in a penetrating way, and a non-return device 7 is arranged on the inner wall of the shell main body 2;

further, the adjusting device 6 comprises a hand wheel 601, a threaded column 602 is fixedly arranged on the bottom surface of the hand wheel 601, a sleeve 604 is clamped on the outer wall of the threaded column 602, and a spring 603 is arranged on the inner wall of the sleeve 604;

when in operation, the device has the function of adapting to the working conditions of different pressures.

Further, the spring 603 is smaller than the sleeve 604 in size, and the sleeve 604 is fixedly mounted on the top surface of the inner wall of the housing main body 2;

in operation, the spring 603 is arranged smaller than the sleeve 604, so that the adjusting device 6 is stably connected with the non-return device 7.

Further, the non-return device 7 comprises a non-return plate 701, wherein a slide tube 702 is fixedly arranged at the bottom of the non-return plate 701, and a through hole 703 is formed in the surface of the slide tube 702;

when the device works, the effect of eliminating the water hammer can be further improved by setting the device.

Further, the number of the through holes 703 is four, and the through holes 703 are equidistantly distributed around the side surface of the slide tube 702;

in operation, water source uniformly enters the interior of the housing main body 2 through the distribution positions of the through holes 703.

Further, the shape of the non-return device 7 is matched with the shape of the bottom of the inner wall of the shell main body 2, and the size of the adjusting device 6 is matched with the size of the non-return device 7;

in operation, the device can run at a constant speed and stably by the arrangement that the shape of the non-return device 7 is matched with the shape of the bottom of the inner wall of the shell main body 2.

Further, baffles are arranged at the upper end and the lower end of the threaded column 602, and the size of the baffle at the bottom of the threaded column 602 is identical to the size of the inner wall of the sleeve 604;

in operation, the device is adjusted to a proper section by providing baffles at both the upper and lower ends of the threaded post 602.

Working principle: when the water pressure reaches a certain degree, the water source props up the non-return plate 701, the water flows out of the water outlet 3 through the through hole 703, when the valve is suddenly closed, the non-return plate 701 descends with the slide tube 702, the contact area between the through hole 703 on the side surface of the slide tube 702 and the inner wall of the shell main body 2 is reduced, the redundant water source in the water inlet 1 enters the inside of the shell main body 2 through the through hole 703 with gradually reduced contact area, the non-return plate 701 generates a slow descending effect, the water hammer eliminator 5 connected by the side tube 4 further increases the effect of eliminating the water hammer, the threaded column 602 is driven to descend by rotating the hand wheel 601 when working conditions of different pressures are faced, the extrusion spring 603 generates different pressure effects, and the effect that the non-return plate 701 cannot be normally opened or closed due to too low pressure or too much is reduced.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (7)

1. A novel slow-closing check valve which is characterized in that: comprising a water inlet (1); the water hammer is characterized in that a shell main body (2) is arranged above the water inlet (1), a water outlet (3) is arranged on the side face of the shell main body (2), one end of a side pipe (4) is connected to the side face of the water inlet (1), a water hammer eliminator (5) is connected to the other end of the side pipe (4), an adjusting device (6) is arranged on the top face of the inner wall of the shell main body (2) in a penetrating mode, and a non-return device (7) is arranged on the inner wall of the shell main body (2).

2. The novel slow-closing check valve according to claim 1, wherein: the adjusting device (6) comprises a hand wheel (601), a threaded column (602) is fixedly arranged on the bottom surface of the hand wheel (601), a sleeve (604) is clamped on the outer wall of the threaded column (602), and a spring (603) is arranged on the inner wall of the sleeve (604).

3. The novel slow-closing check valve according to claim 2, wherein: the spring (603) is smaller than the sleeve (604), and the sleeve (604) is fixedly arranged on the top surface of the inner wall of the shell main body (2).

4. The novel slow-closing check valve according to claim 1, wherein: the non-return device (7) comprises a non-return plate (701), a slide tube (702) is fixedly arranged at the bottom of the non-return plate (701), and a through hole (703) is formed in the surface of the slide tube (702).

5. The novel slow-closing check valve according to claim 4, wherein: the number of the through holes (703) is four, and the through holes (703) are equidistantly distributed on the side surface of the slide tube (702) in a surrounding mode.

6. The novel slow-closing check valve according to claim 1, wherein: the shape of the non-return device (7) is matched with the shape of the bottom of the inner wall of the shell main body (2), and the size of the adjusting device (6) is matched with the size of the non-return device (7).

7. The novel slow-closing check valve according to claim 2, wherein: baffles are arranged at the upper end and the lower end of the threaded column (602), and the size of the baffle at the bottom of the threaded column (602) is matched with the size of the inner wall of the sleeve (604).