CN213271167U

CN213271167U - Valve fitting capable of stopping water return

Info

Publication number: CN213271167U
Application number: CN202022048644.1U
Authority: CN
Inventors: 刘笑含
Original assignee: Tianjin Kairuilin Valve Co ltd
Current assignee: Tianjin Kairuilin Valve Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-05-25
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a valve fitting capable of stopping water return, which belongs to the technical field of valve fittings and comprises a valve body, one side of the inner side wall of the valve body is provided with a water inlet, the other side of the inner side wall of the valve body is provided with a water outlet, the middle part of the inner side wall of the valve body is provided with a valve groove, the inner side wall of the valve groove is connected with a valve block, the bottom of the valve block is welded with a limiting plate, the outer side wall of the limiting plate is welded with a guide pillar, the outer side wall of the guide pillar is sleeved with a spring, the lower part of the outer side wall of the guide pillar is slidably connected with the axis of a fixed strip through the fixed strip groove, the top and the bottom of the fixed strip are both provided with external threads and are rotatably connected with the inner side wall of the water, and maintenance or part replacement is facilitated.

Description

Valve fitting capable of stopping water return

Technical Field

The utility model relates to a valve accessories technical field especially relates to a can end valve accessories of return water.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is widely applied to control systems of water paths, gas paths, oil paths and the like, can see the figure of the valve in places such as automobile industry, traditional houses, factories, various corners of cities and the like, provides good service for our lives, is the closest to people and the most common water path valve in the valve, is provided with a valve for controlling the water path in each family, is convenient for people to control domestic water in daily life, but along with the development of the society, the water path is more and more complicated, and the families have various complicated pipeline lines such as a water purifying pipeline, a hot water pipeline, a cold water pipeline and the like, the connection control of the lines needs the valve, but the traditional valve has certain limitation when in use, because it does not possess the function of stagnant water, often take place along with the closure of valve when using, water pressure reduces and leads to the condition of water backward flow to take place, not only cause the impact to valve and equipment, and it mixes with non-purified water to take place the purified water easily, the condition that cold water and hot water mix, influence people's normal use, and traditional solution is exactly to install the check valve additional and controls, not only it is not pleasing to the eye but also the volume is great, influence the space utilization of family, if later stage transformation still need carry out cutting again to the pipeline, very inconvenient.

201822092554.5 discloses a valve fitting capable of stopping water return, which is provided with a valve connecting pipe, the fitting and the valve can be conveniently and quickly installed and connected through a connecting external thread arranged on the outer wall of the valve connecting pipe, the valve can have the function of stopping water return without additionally installing a check valve, the cost is saved, the installation and maintenance are quick and convenient, the later-stage reconstruction and utilization of the valve are facilitated, the cost of water channel reconstruction is reduced, a check assembly is arranged, a sealing ball valve and a sealing ring in the check assembly are in a normally closed state when no water flows through, the sealing ball valve, a sealing spring and a sealing ring are arranged in the check assembly, when the valve closes water to flow back, the pressure of the water pressure on the sealing ball valve makes the sealing ball valve and the sealing ring closed more tightly, the check effect is achieved, when water enters, the tension of the sealing spring is overcome by the water, with sealed ball valve jack-up for sealed ball valve and sealing washer are opened, make rivers pass through, and valve connecting pipe, casing and play water are integrated into one piece design between the connecting pipe, have guaranteed the fastness of accessory and the performance of protecting against shock when using, guarantee the security in valve and water route.

The existing valve fittings capable of stopping water return have the following disadvantages: 1. the existing valve fittings capable of stopping water return have poor water return performance, long service time, easy water leakage due to water erosion at the connecting gap and short service life; 2. the existing valve fittings capable of stopping water are designed in an integrated mode and cannot be disassembled, and when the internal parts of the valve are damaged, the valve fittings are inconvenient to disassemble for maintenance or replacement; therefore, the valve fitting capable of stopping water is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a valve fitting capable of stopping water return, which has good water return stopping performance and good leakage-proof performance, water enters the valve body from the water inlet of the valve body, the valve block is backwashed under the action of water pressure to make the valve block leave the valve groove, a guide post welded at the bottom of a limiting plate of the valve block slides backwards along a fixed strip groove of a fixed strip axle center, a spring is compressed, when water flow is stopped and no water enters the valve body from the water inlet, the spring extends to rebound and reset to drive the valve block to be tightly pressed on the inner side wall of the valve groove, when the water at the water outlet flows backwards, the water at the water outlet flows backwards to generate reverse water pressure to tightly press the valve block to the valve groove, the backflow-proof performance and the leakage-proof performance are stronger, the valve fitting capable of stopping water return is convenient to assemble and disassemble and maintain, when parts of the valve body are damaged, such as the spring is damaged, the valve body is disassembled, because the external screw thread has all been seted up to fixed strip top and bottom and has been rotated with the delivery port inside wall through external screw thread and internal thread and be connected, directly unscrew the delivery port with the fixed strip, take off the spring, install new can, non-integral type is convenient for maintain or the renewal part.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of can end valve accessories of return water, which comprises a valve body, the water inlet has been seted up to valve body inside wall one side, the delivery port has been seted up to valve body inside wall opposite side, the valve pocket has been seted up at valve body inside wall middle part, the valve pocket inside wall is connected with the valve block, the welding of valve block bottom has the limiting plate, the welding of limiting plate lateral wall has the guide pillar, the spring has been cup jointed to the guide pillar lateral wall, the guide pillar lateral wall lower part is through fixed strip groove and fixed strip axle center department sliding connection, the external screw thread has all been seted up to fixed strip top and bottom and has been rotated with.

Optionally, internal threads are formed in the inner side wall of the water inlet and the inner side wall of the water outlet.

Optionally, the cross sections of the valve groove and the valve block are isosceles trapezoids.

Optionally, a sealing ring is installed at the bottom of the valve block, and the sealing ring is made of rubber.

Optionally, the valve body is made of stainless steel.

The utility model has the advantages as follows:

the embodiment of the utility model provides a can end valve accessory of return water:

1. the utility model discloses can end the valve accessory of return water and end return water performance good, the leak protection performance is good, water gets into the valve body from the water inlet of valve body, with the valve block backward towards under hydraulic effect, make the valve block leave the valve pocket, the limiting plate bottom welded guide pillar of valve block slides backward along the fixed strip groove in fixed strip axle center, the spring is compressed, terminate when rivers, no water gets into the valve body from the water inlet, spring extension resilience resets and drives the valve block and compress tightly at the valve pocket inside wall, during the water backward flow of delivery port, the water reverse flow of delivery port produces reverse water pressure, compress tightly the valve block to the valve pocket, anti-reflux, the leak protection performance is stronger, solve the problem that the valve accessory that can end the return water performance is poor.

2. The utility model discloses can end the valve accessories of return water and be convenient for assemble, the maintenance is got off in convenient dismantlement, when the part of valve body damages, for example, the spring damages, dismantle the valve body from the pipeline both ends, because the external screw thread has all been seted up to fixed strip top and bottom and the internal thread is rotated with the delivery port inside wall through external screw thread and internal thread and is connected, directly twist out the delivery port with the fixed strip, take off the spring, install new can, the non-integral type, be convenient for maintain or the renewal part, solve the current valve accessories integral type design that can end the return water, part non-detachable problem.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a valve fitting capable of stopping water return according to an embodiment of the present invention;

fig. 2 is a top view of a valve fitting capable of stopping water according to an embodiment of the present invention.

In the figure: 1. a valve body; 2. a water inlet; 3. a valve block; 4. a seal ring; 5. a limiting plate; 6. a guide post; 7. a spring; 8. a fixing strip; 9. a valve spool; 10. an internal thread; 11. an external thread; 12. a water outlet; 13. and fixing the strip groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

A valve fitting capable of stopping water according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1 and 2, the embodiment of the utility model provides a can end valve accessory of return water, including valve body 1, water inlet 2 has been seted up to 1 inside wall one side of valve body, delivery port 12 has been seted up to 1 inside wall opposite side of valve body, valve groove 9 has been seted up at 1 inside wall middle part of valve body, valve groove 9 inside wall is connected with

valve block

3, 3 welding bottom of valve block have limiting

plate

5, 5 welding of limiting plate lateral wall have guide pillar 6, 6 lateral walls of guide pillar have cup jointed spring 7, 6 lateral walls lower parts of guide pillar are through

fixed strip groove

13 and 8 axle center sliding connection of fixed strip, 8 tops of fixed strip and bottom have all been seted up external screw thread 11 and have been rotated with delivery port 12 inside wall through external screw thread 11 and internal thread 10 and be.

By way of example, the valve fitting capable of stopping water return of the utility model has good water return stopping performance and good leakage-proof performance, water enters the valve body 1 from the water inlet 2 of the valve body 1, the valve block 3 is backwashed under the action of water pressure, the valve block 3 is separated from the valve groove 9, the guide post 6 welded at the bottom of the limiting plate 5 of the valve block 3 slides backwards along the fixing strip groove 13 at the axis of the fixing strip 8, the spring 7 is compressed, when the water flow is stopped and no water enters the valve body 1 from the water inlet 2, the spring 7 extends to rebound and reset to drive the valve block 3 to be tightly pressed on the inner side wall of the valve groove 9, when the water at the water outlet 12 flows backwards, the water at the water outlet 12 flows backwards to generate reverse water pressure, the valve block 3 is tightly pressed towards the valve groove 9, the backflow-proof performance and the leakage-proof performance are stronger, the valve fitting capable of stopping water return is convenient to assemble and disassemble and maintain, when the parts of the valve body, because external screw thread 11 has all been seted up to 8 tops of fixed strip and bottom and has been rotated with 12 inside walls of delivery port through external screw thread 11 and internal thread 10 and be connected, directly unscrew delivery port 12 with fixed strip 8, take off spring 7, install new can, the non-integral type is convenient for maintain or the renewal part.

Referring to fig. 1, the inner side wall of the water inlet 2 and the inner side wall of the water outlet 12 are both provided with internal threads 10.

The example, internal thread 10 has all been seted up to 2 inside walls of water inlet and 12 inside walls of delivery port, and when installation valve body 1, install the oral siphon at water inlet 2 through the screw thread of 1 water inlet 2 of valve body, install the outlet pipe at delivery port 12 through the screw thread of 1 delivery port 12 of valve body, and threaded connection's mode is comparatively firm and easy to assemble and dismantlement.

Referring to fig. 1, the cross sections of the valve slot 9 and the valve block 3 are isosceles trapezoids.

Illustratively, the cross sections of the valve slot 9 and the valve block 3 are both isosceles trapezoids, the trapezoid structure has certain stability, the stability of the trapezoid is between a triangle and a parallelogram, the stability is related to the length relationship between an upper bottom and a lower bottom, when the upper bottom is gradually close to 0, the whole trapezoid is gradually close to the triangle, then the trapezoid has more and more stability, or the stability is stronger and stronger, and when the upper bottom is gradually close to the lower bottom, the whole trapezoid is gradually close to the parallelogram, then the trapezoid is more and more easily deformed, so that the stability is weaker and weaker, compared with the structure with a common longitudinal section of a rectangle, the structure is stable.

Referring to fig. 1, a sealing ring 4 is installed at the bottom of the valve block 3, and the sealing ring 4 is made of rubber.

In the example, the sealing ring 4 is made of rubber, the rubber is soft and elastic, and can rebound rapidly under the pressure at normal temperature, and the sealing performance is good.

Referring to fig. 1, the valve body 1 is made of stainless steel.

Illustratively, stainless steel is less susceptible to corrosion and rust, increasing the service life of the valve body 1.

When the water-saving valve is used, a water inlet pipe is arranged at a water inlet 2 through the thread of the water inlet 2 of a valve body 1, a water outlet pipe is arranged at a water outlet 12 through the thread of the water outlet 12 of the valve body 1, water enters the valve body 1 from the water inlet 2 of the valve body 1, a valve block 3 is backwashed under the action of water pressure, the valve block 3 leaves a valve groove 9, a guide post 6 welded at the bottom of a limiting plate 5 of the valve block 3 slides backwards along a fixing strip groove 13 on the axis of a fixing strip 8, a spring 7 is compressed, when water flow is stopped and no water enters the valve body 1 from the water inlet 2, the spring 7 expands to rebound and reset to drive the valve block 3 to be pressed on the inner side wall of the valve groove 9, when the water at the water outlet 12 flows backwards, the water at the water outlet 12 flows backwards to generate reverse water pressure to press the valve block 3 to the valve groove 9, the backflow preventing performance and the leakage preventing, because external screw thread 11 has all been seted up to 8 tops of fixed strip and bottom and has been rotated with 12 inside walls of delivery port through external screw thread 11 and internal thread 10 and be connected, directly unscrew delivery port 12 with fixed strip 8, take off spring 7, install new can, the non-integral type is convenient for maintain or the renewal part.

The utility model relates to a valve fitting capable of stopping water return, which comprises a valve body 1; 2. a water inlet; 3. a valve block; 4. a seal ring; 5. a limiting plate; 6. a guide post; 7. a spring; 8. a fixing strip; 9. a valve spool; 10. an internal thread; 11. an external thread; 12. a water outlet; 13. the fastening strips and the components are all standard parts or parts known to the person skilled in the art, the structure and the principle of which are known to the person skilled in the art by means of technical manuals or by means of routine experimentation.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A valve fitting capable of stopping water return comprises a valve body (1) and is characterized in that a water inlet (2) is formed in one side of the inner side wall of the valve body (1), a water outlet (12) is arranged on the other side of the inner side wall of the valve body (1), a valve groove (9) is arranged in the middle of the inner side wall of the valve body (1), the inner side wall of the valve groove (9) is connected with the valve block (3), the bottom of the valve block (3) is welded with a limiting plate (5), the outer side wall of the limiting plate (5) is welded with a guide post (6), the outer side wall of the guide post (6) is sleeved with a spring (7), the lower part of the outer side wall of the guide post (6) is connected with the axle center of the fixed strip (8) in a sliding way through a fixed strip groove (13), external screw thread (11) have all been seted up to fixed strip (8) top and bottom and have been connected with delivery port (12) inside wall rotation through external screw thread (11) and internal thread (10).

2. The valve fitting capable of stopping water return according to claim 1, wherein the inner side wall of the water inlet (2) and the inner side wall of the water outlet (12) are both provided with internal threads (10).

3. The valve fitting capable of stopping the return water as claimed in claim 1, wherein the cross sections of the valve groove (9) and the valve block (3) are isosceles trapezoids.

4. The valve fitting capable of stopping water return according to claim 1, wherein a sealing ring (4) is installed at the bottom of the valve block (3), and the sealing ring (4) is made of rubber.

5. Valve fitting according to claim 1, characterized in that said valve body (1) is made of stainless steel.