CN211259749U

CN211259749U - Adjustable split type rubber flap check valve

Info

Publication number: CN211259749U
Application number: CN201921773951.7U
Authority: CN
Inventors: 孙立明
Original assignee: Tianjin Mingtao Technology Development Co ltd
Current assignee: Tianjin Yujian Technology Development Co.,Ltd.
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-08-14
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses an adjustable split type rubber lamella check valve, include: the utility model relates to a valve technical field, after fastening valve gap and valve body through the bolt, when water gets into the valve body from the left side, through the valve clack atress that adjusts the non return structure rises, carries out liquid conveying; the valve clack can be always kept in an open state by adjusting a hand wheel in the non-return structure, so that the flowing speed of liquid is increased; the design not only improves the service life of the valve clack, but also is convenient to disassemble and maintain, and can control the opening degree of the valve clack and adjust the liquid flowing speed.

Description

Adjustable split type rubber flap check valve

Technical Field

The utility model relates to the technical field of valves, specifically be an adjustable split type rubber lamella check valve.

Background

The design of the parts of the rubber flap check valve mainly comprises three main parts, namely a valve body, a valve cover and a rubber flap; the rubber flap in the valve is made of steel plates, steel bars and reinforced nylon cloth as a substrate, the outer layer is coated with rubber, and the service life of the valve flap can reach 100 ten thousand times; the check valve can be arranged at the water outlet of the water pump to prevent backflow and damage of a water hammer to the pump, and can also be arranged on a bypass pipe of a water inlet and outlet pipe of a reservoir to prevent the water in the reservoir from flowing back to a water supply system;

most of the existing rubber flap check valves adopt a flap to move, and the flap is easy to collide and flap with a valve body in the use process, so that the service life of the flap check valve is shortened, and the flap check valve is inconvenient to maintain; the existing check valve also plays a role in checking when in use, but when liquid flows through, if the water pressure is low and the water flow speed is low, the valve flap cannot be opened for use, and meanwhile, the opening degree of the valve flap cannot be controlled to adjust the liquid flow speed; therefore, aiming at the problems, an adjustable split type rubber flap check valve is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable split type rubber lamella check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an adjustable split flapper check valve comprising: the valve comprises a valve body, a base, a valve cover and two pairs of bolts with the same structure; the left side and the right side of the bottom end of the valve body are of hollow pipeline structures, the center of the valve body is of a cylindrical uncovered hollow barrel-shaped structure and communicated with each other, two pairs of first threaded holes with the same structure are formed in the upper wall of the top end of the valve body along an equal distance, the base is welded on the lower wall of the valve body and is positioned at the center, first circular through holes matched with the first threaded holes are formed in the valve cover at an equal distance, the valve cover is arranged at the top end of the valve body, the first circular through holes are matched with the first threaded holes, a second threaded hole is formed in the center of the valve cover, one ends of two pairs of bolts respectively penetrate through the first circular through holes, are inserted into the first threaded holes of the valve body and are in threaded connection with the threaded holes, and adjustable non-;

the adjustable check structure includes: the valve comprises a valve clack, an outer sleeve, a threaded rod, a nut, a spring and a hand wheel;

the valve clack inlays the dress in valve body central point department, and its central point department has seted up the circular through-hole of second, the outer tube is hollow tube dress structure, its one end of outer tube welds in the valve clack upper wall face, and is located central point department to be located the circular through-hole of second, its both ends of threaded rod are the helicitic texture, and the center is branch column structure, its one end cartridge of threaded rod is in the outer tube, and runs through in the valve clack, and its other end cartridge is in valve gap second screwed hole, and connects soon mutually with second screw hole screw thread, nut suit is served at the threaded rod, and connects soon mutually with the threaded rod screw thread mutually, suit one end suit is on the outer tube, and its other end suit is on the threaded rod, and is located between valve clack upper wall and the valve gap lower wall face, the hand wheel.

Preferably, a sealing gasket is sleeved on the lower wall of the valve clack.

Preferably, the left end inlet pipeline of the valve body is lower than the right end outlet pipeline.

Preferably, the threaded rod is smaller in diameter than the outer sleeve.

Preferably, a movable seal is arranged between one end of the threaded rod and the valve clack.

Preferably, the base is of a convex structure.

Compared with the prior art, the beneficial effects of the utility model are that: according to the adjustable split type rubber flap check valve, after the valve cover and the valve body are fastened through the bolt, when water enters from the left side, the pressure is high, the valve flap sealed by the sealing pad is stressed, the valve flap is limited by the threaded rod and moves upwards on the threaded rod through the outer sleeve, the spring is compressed, and then liquid flows into the right side through a space where the valve flap rises; when the water supply is stopped, the pressure on the left side is reduced, and the valve clack is closed by the action of a spring, so that the water on the right side cannot flow back; when the valve is used, the threaded rod can be rotated forwards through the hand wheel, so that the threaded rod moves upwards, the valve clack is stressed to move upwards through screwing of the nut, the interior of the valve body is opened, the valve body is kept in an open state all the time, and the flowing speed of liquid is increased; the design not only improves the service life of the valve clack, but also is convenient to disassemble and maintain, and can control the opening degree of the valve clack and adjust the liquid flowing speed.

Drawings

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

FIG. 2 is a schematic view of the appearance structure of the present invention;

FIG. 3 is a schematic view of a partially enlarged structure A of the present invention;

fig. 4 is a schematic top view of the present invention.

In the figure: 1. the valve comprises a valve body, 2, a base, 3, a valve cover, 4, a bolt, 5, a valve clack, 6, an outer sleeve, 7, a threaded rod, 8, a nut, 9, a spring, 10, a hand wheel, 11 and a sealing gasket.

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: an adjustable split flapper check valve comprising: the valve comprises a valve body 1, a base 2, a valve cover 3 and two pairs of bolts 4 with the same structure; the left side and the right side of the bottom end of the valve body 1 are of hollow pipeline structures, the center part of the valve body 1 is of a cylindrical uncovered hollow barrel-shaped structure and is communicated with each other, the upper wall of the top end of the valve body 1 is provided with two pairs of first threaded holes with the same structure along an equal distance, the base 2 is welded on the lower wall of the valve body 1 and is positioned at the center part, the valve cover 3 is provided with first circular through holes matched with the first threaded holes at an equal distance, the valve cover 3 is arranged at the top end of the valve body 1, the first circular through holes are matched with the first threaded holes, the center part of the valve cover is provided with second threaded holes, one ends of two pairs of bolts 4 respectively penetrate through the first circular through holes and are inserted into the first threaded holes of the valve body 1 and are in threaded; an adjustable check structure comprising: the valve clack 5, an outer sleeve 6, a threaded rod 7, a nut 8, a spring 9 and a hand wheel 10; the valve clack 5 is embedded in the center of the valve body 1, a second circular through hole is formed in the center of the valve body, the outer sleeve 6 is of a hollow tube structure, one end of the outer sleeve 6 is welded on the upper wall surface of the valve clack 5 and is positioned in the center and on the second circular through hole, two ends of the threaded rod 7 are of threaded structures, the center of the threaded rod is of a support rod-shaped structure, one end of the threaded rod 7 is inserted into the outer sleeve 6 and penetrates through the valve clack 5, the other end of the threaded rod is inserted into the second threaded hole of the valve cover 3 and is screwed with the second threaded hole, the nut 8 is sleeved on one end of the threaded rod 7 and is screwed with the threaded rod 7, one end of the threaded rod is sleeved on the outer sleeve 6, the other end of the threaded rod is sleeved on the threaded rod 7 and is positioned between the upper wall; through adjustable non return structure, can close automatically, prevent to flow against the current to fall back, can make it continuously open the certain degree simultaneously by hand, increase flow speed.

Preferably, the lower wall of the valve flap 5 is further provided with a sealing gasket 11 for sealing when the liquid leaks.

As preferred scheme, still further, valve body 1 left end inlet pipeline is lower than right-hand member outlet pipeline for satisfy the design demand, make it have the effect of non return.

Preferably, the threaded rod 7 is smaller in diameter than the outer sleeve 6, so that the outer sleeve can be conveniently mounted and can move on the threaded rod 7 in a limiting mode.

Preferably, a movable seal is arranged between one end of the threaded rod 7 and the valve clack 5, so that the adjustment movement is convenient, and the leakage is prevented.

As preferred scheme, further, base 2 is protruding type structure, and the installation of being convenient for makes it stably put.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from the attached figures 1-4 of the specification, firstly, after all parts are installed, the valve cover 3 is fastened with the valve body 1 through the bolt 4, and the valve body 1 is stably placed through the base 2; when water enters the valve body 1 through the left side, the internal pressure is high, the valve clack 5 sealed by the sealing gasket 11 is stressed, the valve clack 5 moves upwards on the threaded rod 7 through the outer sleeve 6 through the limit of the threaded rod 7, the spring 9 is compressed, and then the liquid flows into the right side through the space after the valve clack 5 rises and is discharged; when the water supply is stopped, the internal pressure on the left side is reduced, and the valve clack 5 is closed by the acting force of the spring 9, so that the water on the right side cannot flow back into the water supply equipment; when the valve is used, the hand wheel 10 can also rotate in the positive direction to drive the threaded rod 7 to rotate in a driven manner through the second threaded hole in the valve cover 3, and the threaded rod 7 drives the valve clack 5 to move upwards under stress through screwing and fixing of the nut 8, so that the interior of the valve body 1 is opened, the valve body is kept in an open state all the time, and the flowing speed of liquid is increased; the device can also be opened for use under the conditions of insufficient pressure and low flow rate.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; meanwhile, unless explicitly specified or limited otherwise, the terms "inserting", "embedding", "penetrating", "welding", "screwing", and the like are to be broadly understood, and for example, the terms may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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. An adjustable split flapper check valve comprising: the valve comprises a valve body (1), a base (2), a valve cover (3) and two pairs of bolts (4) with the same structure; it is characterized in that the left side and the right side of the bottom end of the valve body (1) are hollow pipeline structures, the central part of the valve body is a cylindrical uncovered hollow barrel-shaped structure, and are communicated with each other, two pairs of first threaded holes with the same structure are arranged on the upper wall of the top end of the valve body (1) along equal distance, the base (2) is welded on the lower wall of the valve body (1), and is positioned at the central part, the valve cover (3) is equidistantly provided with first round through holes matched with the first threaded holes, the valve cover (3) is arranged at the top end of the valve body (1), the first round through hole is matched with the first threaded hole, a second threaded hole is arranged at the central part of the valve body, one end of each of the two pairs of bolts (4) respectively penetrates through the first round through hole and is inserted into the first threaded hole of the valve body (1), the valve body (1) is internally provided with an adjustable non-return structure;

the adjustable check structure includes: the valve comprises a valve clack (5), an outer sleeve (6), a threaded rod (7), a nut (8), a spring (9) and a hand wheel (10);

the valve clack (5) is embedded in the center of the valve body (1), a second circular through hole is formed in the center of the valve clack, the outer sleeve (6) is of a hollow tube structure, one end of the outer sleeve (6) is welded to the upper wall surface of the valve clack (5), is positioned in the center and is positioned on the second circular through hole, two ends of the threaded rod (7) are of a threaded structure, the center of the threaded rod is of a strut-shaped structure, one end of the threaded rod (7) is inserted into the outer sleeve (6) and penetrates through the valve clack (5), the other end of the threaded rod is inserted into the second threaded hole of the valve cover (3) and is screwed with the second threaded hole, the nut (8) is sleeved on one end of the threaded rod (7) and is screwed with the threaded rod (7), one end of the sleeved on the outer sleeve (6), the other end of the sleeved on the threaded rod (7) and is positioned between the upper wall of the valve clack (5) and, the hand wheel (10) is arranged on the other end of the threaded rod (7).

2. The adjustable split type flapper check valve of claim 1, wherein: the lower wall of the valve clack (5) is sleeved with a sealing gasket (11).

3. The adjustable split type flapper check valve of claim 1, wherein: the inlet pipeline at the left end of the valve body (1) is lower than the outlet pipeline at the right end.

4. The adjustable split type flapper check valve of claim 1, wherein: the diameter of the threaded rod (7) is smaller than that of the outer sleeve (6).

5. The adjustable split type flapper check valve of claim 1, wherein: and a movable seal is arranged between one end of the threaded rod (7) and the valve clack (5).

6. The adjustable split type flapper check valve of claim 1, wherein: the base (2) is of a convex structure.