Improved integrated valve structure

Abstract

The utility model relates to an improved integrated valve structure which comprises a water outlet elbow, a check valve and a butterfly valve, one end of the water outlet elbow is connected with the check valve, the other end of the water outlet elbow is connected with the butterfly valve, the water outlet elbow, the check valve and the butterfly valve are connected into a whole, a check valve rod and a check valve seat are arranged in the check valve, the check valve rod is installed in the check valve seat, and the butterfly valve is installed in the check valve seat. The check valve seat is in sealed connection with one end of the water outlet elbow, the butterfly valve comprises a butterfly valve seat and a butterfly valve plate, the butterfly valve plate is arranged between the water outlet elbow and the butterfly valve seat, sealing grooves are designed in the two sides of the butterfly valve plate, sealing rings are installed in the sealing grooves, and the butterfly valve plate is in sealed connection with the water outlet elbow and the butterfly valve seat through the sealing grooves and the sealing rings respectively. A filter screen is arranged at the bottom in the water outlet elbow, and a drain outlet is formed in a water outlet of the water outlet elbow; according to the utility model, the water outlet elbow, the butterfly valve and the check valve are tightly combined together to form a whole, so that the cost is reduced, and the valve is convenient to maintain and replace.

Description

[Technical field]

[0001] The utility model relates to the technical field of valve equipment, in particular to an improved integrated valve structure used in the water supply industry. [Background Technology]

[0002] In the existing water supply industry, the water outlet of the water pump is generally equipped with a check valve and a butterfly valve. For the convenience of installation, a soft joint is generally required between the butterfly valve and the check valve for buffer connection, and its installation is relatively complicated. In order to reduce the floor space of the entire water supply equipment, an elbow needs to be installed at the outlet of the water pump, which is an increase in cost for the equipment. In addition, when the check valve is connected to the on-site pipeline, the flange is generally fixed, and the precision requirements are relatively high; the check valve is easy to get stuck when the water pressure is too high or there are impurities in the medium; the check valve and the butterfly valve are inconvenient to repair and replace in the later stage due to the complex structure. In addition, there is no filtering device at the outlet of the water pump. After the water pump has been running for a long time, it is easy to be filled with impurities at the outlet, affecting the safety of water use and the safety of the water pump. [Contents of the utility model]

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies and provide an improved integrated valve structure, which combines the outlet elbow, butterfly valve and check valve relatively tightly together to form a whole, which is conducive to cost reduction and convenient valve maintenance and replacement.

[0004] In order to achieve the above purpose, an improved integrated valve structure is designed, including a water outlet elbow 3, a check valve 4 and a butterfly valve, wherein one end of the water outlet elbow 3 is connected to the check valve 4, and the other end of the water outlet elbow 3 is connected to the butterfly valve, the water outlet elbow 3, the check valve 4 and the butterfly valve are connected as a whole, the check valve 4 includes a check valve stem 401 and a check valve seat 402, the check valve stem 401 is installed in the check valve seat 402, the check valve seat 402 is sealed with one end of the water outlet elbow 3, and the butterfly valve includes a butterfly valve seat 1 and a butterfly valve plate 2, the butterfly valve plate 2 is arranged between the water outlet elbow 3 and the butterfly valve seat 1, sealing grooves 201 are designed on both sides of the butterfly valve plate 2, and a sealing ring is installed in the sealing groove 201. The butterfly valve plate 2 is sealed and connected with the water outlet elbow 3 and the butterfly valve seat 1 respectively through the sealing groove 201 and the sealing ring, a filter screen 301 is arranged at the bottom of the water outlet elbow 3, and a sewage outlet 302 is arranged at the water outlet of the water outlet elbow 3, and the sewage outlet 302 is arranged between the filter screen 301 and the butterfly valve plate 2.

[0005] Furthermore, the check valve stem 401 is in an inverted T-shaped structure, and a serrated protrusion 404 is provided on the outer wall of the guide rod of the check valve stem 401, and a serrated groove 406 matching the serrated protrusion 404 is provided in the guide rod seat 405 in the middle of the check valve seat 402, thereby effectively solving the inconvenience of guiding the check valve back and forth and greatly increasing the working continuity.

[0006] Furthermore, an annular inclined surface 407 is provided at the bottom of the check valve stem 401, and the annular inclined surface 407 is matched and connected with the inclined connecting surface at the upper inner part of the water outlet elbow 3, so that the connection is more reliable.

[0007] Furthermore, an annular groove is provided on the inner side of the top of the water outlet elbow 3 , a sealing ring 403 is installed in the annular groove, and the check valve seat 402 and the water outlet elbow 3 are sealed and connected via the sealing ring 403 .

[0008] Furthermore, a movable flange 5 is installed on the check valve seat 402, and a mating flange 6 is connected to the movable flange 5. The movable flange 5 is connected to the mating flange 6 by bolts, so that when it is fixed with the matching flange, there is no need for high precision and the angle can be adjusted by rotation, which greatly shortens the assembly time and the efficiency of replacement and maintenance.

[0009] Furthermore, the butterfly valve plate 2 has a T-shaped structure in longitudinal section, and the left and right sides of the butterfly valve plate 2 are fixedly connected with the water outlet elbow 3 and the butterfly valve seat 1 in a clamping manner, which further makes it more convenient and quick to repair the butterfly valve.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] (1) The matching part of the valve stem and the valve seat of the utility model is designed as a serrated structure, and the guide rod in the middle of the valve stem is a convexity, which can effectively solve the inconvenience of the back and forth guidance of the check valve, solve the problem that the water pressure is too high or if there are impurities in the medium, the passability of the valve stem is affected, and greatly increase the working continuity;

[0012] (2) The utility model has a filter screen at the bottom of the outlet elbow and a sewage outlet at the return water, so that impurities can be better intercepted at the outlet. The sewage outlet can be cleaned regularly and can also prevent impurities from entering the water pump and causing instability in the operation of the water pump.

[0013] (3) The outlet elbow and the butterfly valve plate of the utility model are sandwiched by the butterfly valve seat, so when repairing the butterfly valve, only the valve seat needs to be opened for replacement, which is convenient and quick;

[0014] (4) The outlet flange of the utility model is designed to be movable. When it is fixed with the matching flange, it does not need to be too precise. The angle can be adjusted by rotation, which greatly shortens the assembly time and the efficiency of replacement and maintenance, and has interchangeability.

[0015] (5) The utility model combines the outlet elbow, butterfly valve and check valve together relatively tightly to form a whole, which is conducive to cost reduction and convenient valve maintenance and replacement;

[0016] In summary, the utility model has a novel structure and a reasonable design. It combines the water outlet elbow, butterfly valve, filter and check valve very well. It has a simple structure, fixed size, beautiful and practical appearance, and is conducive to promotion and application in the water supply industry. [Drawings]

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a front structural schematic diagram of the valve stem of the check valve of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view of the valve stem of the check valve of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the check valve seat of the utility model from a top view;

[0021] Figure 5 It is a schematic diagram of the internal structure of the check valve seat of the utility model;

[0022] In the figure: 1, butterfly valve seat 2, butterfly valve plate 3, water outlet elbow 4, check valve 5, movable flange 6, docking flange 201, sealing groove 301, filter screen 302, sewage outlet 401, check valve stem 402, check valve seat 403, sealing ring 404, serrated protrusion 405, guide rod seat 406, serrated groove 407, annular inclined surface. [Specific implementation method]

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] As attached Figure 1 To Attachment Figure 4As shown, the utility model provides an improved integrated valve structure, including a water outlet elbow 3, a check valve 4 and a butterfly valve. One end of the water outlet elbow 3 is connected to the check valve 4, and the other end of the water outlet elbow 3 is connected to the butterfly valve. The water outlet elbow 3, the check valve 4 and the butterfly valve are connected as a whole. The check valve 4 includes a check valve stem 401 and a check valve seat 402. The check valve stem 401 is installed in the check valve seat 402. The check valve seat 402 is sealed with one end of the water outlet elbow 3. The butterfly valve includes a butterfly valve stem Seat 1 and butterfly valve plate 2, the butterfly valve plate 2 is arranged between the water outlet elbow 3 and the butterfly valve seat 1, sealing grooves 201 are designed on both sides of the butterfly valve plate 2, and sealing rings are installed in the sealing grooves 201. The butterfly valve plate 2 is sealed and connected with the water outlet elbow 3 and the butterfly valve seat 1 through the sealing grooves 201 and the sealing rings respectively, a filter screen 301 is arranged at the bottom of the water outlet elbow 3, and a sewage outlet 302 is arranged at the water outlet of the water outlet elbow 3, and the sewage outlet 302 is arranged between the filter screen 301 and the butterfly valve plate 2.

[0025] The butterfly valve plate 2 has a T-shaped longitudinal section, and the butterfly valve plate 2 is clamped and fixedly connected with the outlet elbow 3 and the butterfly valve seat 1 on both sides, which makes it more convenient and quick to repair the butterfly valve. An annular groove is provided on the inner side of the top of the outlet elbow 3, and a sealing ring 403 is installed in the annular groove. The check valve seat 402 and the outlet elbow 3 are sealed and connected by the sealing ring 403. The check valve stem 401 is in an inverted T-shaped structure. A serrated protrusion 404 is provided on the outer wall of the guide rod of the check valve stem 401. A serrated groove 406 matching the serrated protrusion 404 is provided in the guide rod seat 405 in the middle of the check valve seat 402, thereby effectively solving the inconvenience of the check valve guiding back and forth and greatly increasing the working continuity. An annular inclined surface 407 is provided at the bottom of the check valve stem 401, and the annular inclined surface 407 is matched with the inclined connecting surface of the upper inner part of the water outlet elbow 3, thereby making the connection more reliable. A movable flange 5 is installed on the check valve seat 402, and a docking flange 6 is connected to the movable flange 5. The movable flange 5 is connected to the docking flange 6 by bolts, so that when fixing with the matching flange, there is no need for high precision, and the angle can be adjusted by rotation, which greatly shortens the assembly time and the efficiency of replacement and maintenance.

[0026] In the integrated valve structure described in the utility model, the butterfly valve seat 1 is connected to the water outlet elbow 3, with the butterfly valve plate 2 in the middle. Sealing grooves 201 are designed on both sides of the butterfly valve plate 2, and sealing rings are installed in the sealing grooves 201, which can effectively ensure the sealing of both sides of the valve plate, reduce material costs, and facilitate the replacement of the butterfly valve. The water outlet elbow 3 contains a filter screen 301, and a sewage outlet 302 is designed between the filter screen 301 and the butterfly valve plate 2. Impurities and sediments can be cleaned and discharged regularly from here. If larger particles are encountered, they can be taken out together when repairing the butterfly valve. A groove design is made between the check valve seat 402 and the check valve body, and a sealing ring 403 is designed, which facilitates the replacement and maintenance of the check valve seat 402. There is a movable flange 5 on the check valve seat 402, and the movable flange 5 and the docking flange 6 are connected by bolts, which reduces the matching accuracy and facilitates installation. The check valve seat 402 and the check valve stem 401 are designed with a new structure - serrated, which increases guidance and is more reasonable in coordination, which is more conducive to the convenience of the check valve working back and forth.

[0027] The utility model makes the outlet elbow 3 and the check valve 4 into a whole, wherein the check valve 4 contains a check valve seat 402 and a check valve stem 401, and a new type of sawtooth structure is designed at the matching part of the check valve stem 40 and the check valve seat 402, and the middle guide rod of the valve stem is a protrusion, which can effectively solve the inconvenience of the check valve guiding back and forth, solve the problem of excessive water pressure or impurities in the medium affecting the passability of the valve stem, and greatly increase the continuity of its work. A filter screen 301 is designed at the bottom of the water outlet elbow, and a sewage outlet 302 is designed at the return water, mainly for the purpose of containing tiny impurities and sediments in the municipal water medium. The filter screen 301 can better intercept these impurities at the water outlet, and the sewage outlet can be cleaned regularly, and it can also prevent impurities from entering the water pump, causing instability in the operation of the water pump, and causing damage to the water pump.

[0028] The outlet elbow 3 and the butterfly valve plate 2 are made into a clamped type through the butterfly valve seat, so that when repairing the butterfly valve, only the butterfly valve seat 1 needs to be opened to replace it, which is convenient and quick; when large impurities cannot be discharged from the sewage outlet 302, they can be discharged together when repairing the butterfly valve, which is convenient and quick. The outlet elbow water outlet movable flange 5 is designed to be movable. When it is fixed with the matching flange 6, it does not need to be too precise. Its angle can be adjusted by rotation, so it is convenient to connect with the matching flange, greatly shortening the assembly time and the efficiency of replacement and maintenance, and it has interchangeability.

[0029] In summary, the utility model provides a new type of integrated valve, which combines the outlet elbow, butterfly valve, filter device and check valve well to form a whole, improves its matching degree, and optimizes the valve seat and valve stem of the check valve to strengthen the guidance of the valve stem, prevent impurities in the medium from affecting the smoothness of its operation. At the same time, a filter screen is added in the elbow to effectively discharge small impurities, reduce manufacturing costs, and facilitate installation.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0031] The present invention is not limited to the above-mentioned implementation modes, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. An improved integrated valve structure, comprising a water outlet elbow (3), a check valve (4) and a butterfly valve, characterized in that: One end of the water outlet elbow (3) is connected to the check valve (4), and the other end of the water outlet elbow (3) is connected to the butterfly valve. The water outlet elbow (3), the check valve (4) and the butterfly valve are connected as a whole. The check valve (4) contains a check valve stem (401) and a check valve seat (402). The check valve stem (401) is installed in the check valve seat (402). The check valve seat (402) is sealed with one end of the water outlet elbow (3). The butterfly valve comprises a butterfly valve seat (1) and a butterfly valve plate (2). The butterfly valve plate (2) is arranged at the outlet. A sealing groove (201) is designed on both sides of the butterfly valve plate (2) between the water elbow (3) and the butterfly valve seat (1), a sealing ring is installed in the sealing groove (201), the butterfly valve plate (2) is sealedly connected to the water outlet elbow (3) and the butterfly valve seat (1) through the sealing groove (201) and the sealing ring, a filter screen (301) is arranged at the bottom of the water outlet elbow (3), a sewage outlet (302) is arranged at the water outlet of the water outlet elbow (3), and the sewage outlet (302) is arranged between the filter screen (301) and the butterfly valve plate (2).

2. The improved integrated valve structure according to claim 1, characterized in that: The check valve stem (401) is in an inverted T-shaped structure. A sawtooth-shaped protrusion (404) is provided on the outer wall of the guide rod of the check valve stem (401). A sawtooth-shaped groove (406) matching the sawtooth-shaped protrusion (404) is provided in the guide rod seat (405) in the middle of the check valve seat (402).

3. The improved integrated valve structure according to claim 1, characterized in that: The bottom of the check valve stem (401) is provided with an annular inclined surface (407), and the annular inclined surface (407) is cooperatively connected with the inclined connecting surface at the upper inner portion of the water outlet elbow (3).

4. The improved integrated valve structure according to claim 1, characterized in that: An annular groove is provided on the inner side of the top of the water outlet elbow (3), a sealing ring (403) is installed in the annular groove, and the check valve seat (402) and the water outlet elbow (3) are sealed and connected via the sealing ring (403).

5. The improved integrated valve structure according to any one of claims 1 to 4, characterized in that: A movable flange (5) is installed on the check valve seat (402), a docking flange (6) is connected to the movable flange (5), and the movable flange (5) and the docking flange (6) are connected by bolts.

6. The improved integrated valve structure according to any one of claims 1 to 4, characterized in that: The butterfly valve plate (2) has a T-shaped structure in longitudinal section, and the left and right sides of the butterfly valve plate (2) are fixedly connected with a water outlet elbow (3) and a butterfly valve seat (1) in a clamping manner.

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