CN210014081U - Piston type flow regulating valve - Google Patents
Piston type flow regulating valve Download PDFInfo
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- CN210014081U CN210014081U CN201822251591.6U CN201822251591U CN210014081U CN 210014081 U CN210014081 U CN 210014081U CN 201822251591 U CN201822251591 U CN 201822251591U CN 210014081 U CN210014081 U CN 210014081U
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- flow regulating
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Abstract
The utility model provides a piston type flow regulating valve, which comprises a valve body, a slider-crank mechanism and an opening-closing mechanism; the crank sliding block mechanism is arranged in the valve body; the opening and closing mechanism is connected with the slider-crank mechanism; the crank sliding block mechanism comprises a mechanism body, a valve block and a linkage rod; the mechanism body is erected in the valve body; the valve body comprises a water inlet and a water outlet; the valve block is erected between the water outlet and the mechanism body; the valve block is in transmission connection with the opening and closing mechanism through a linkage rod; a flow passage is formed between the valve body and the mechanism body; the sectional area of the flow channel from the water inlet to the water outlet is gradually reduced; the flow channel is divided into a plurality of small flow channels on average, so that the piston type flow regulating valve with simple structure, low maintenance cost and high stability is provided.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a piston flow regulating valve.
Background
The flow regulating and pressure regulating valve is the first choice valve for realizing flow and pressure control, and is widely used in large and medium cities all over the country as a mature product. The market use experience has been more than 10 years old and is generally favored. With the enlargement of urban water supply areas, the improvement of engineering requirements and the enhancement of automation degree in the future, the flow regulating and pressure regulating valve has to obtain a wider development space. The flow regulating pressure regulating valve is also called piston type multifunctional control valve, and has several control functions, such as water level control, pressure reducing control, pressure maintaining and releasing control, flow control, etc. and thus has no cavitation, no turbulence, no vibration, silt resistance and other functions, so that it is widely used in present large water supply engineering.
The product on the market at present has the following problems that 1, the transported raw water is easy to block when the product is operated at a small opening. 2. The moving parts are in the valve body, and the operation and maintenance are complex. 3. The stability is poor. 4. The valves have poor pressure regulating and cavitation resistance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, the maintenance cost is low, the piston flow control valve that stability is high.
In order to achieve the purpose, the utility model provides a piston type flow regulating valve, which comprises a valve body, a slider-crank mechanism and an opening-closing mechanism; the crank sliding block mechanism is erected in the valve body; the opening and closing mechanism is connected with the slider-crank mechanism;
the crank sliding block mechanism comprises a mechanism body, a valve block and a linkage rod; the mechanism body is erected in the valve body; the valve body comprises a water inlet and a water outlet; the valve block is erected between the water outlet and the mechanism body; the valve block is in transmission connection with the opening and closing mechanism through the linkage rod;
a flow passage is formed between the valve body and the mechanism body; the sectional area of the flow channel from the water inlet to the water outlet is gradually reduced; the flow channel is divided equally into a plurality of small flow channels.
Preferably, sealing rings are arranged between the valve body and the mechanism body and between the valve block.
Preferably, the mechanism body is provided with a through hole for inserting the valve block; the side wall of the through hole is provided with a guide block matched with the side wall of the valve block; the valve block is driven by the linkage rod to realize axial horizontal movement under the guiding action of the guide block.
Preferably, the linkage rod comprises a first transmission rod and a second transmission rod; one end of the first transmission rod is movably connected with the valve body; the other end of the first transmission rod is movably connected with one end of the second transmission rod, and the other end of the second transmission rod is in transmission link with the opening and closing mechanism.
Preferably, the opening and closing mechanism comprises an opening and closing mechanism body, a rotating handle and a guide rod; one end of the guide rod is connected with the linkage rod; the other end of the guide rod is connected with the rotating handle.
Preferably, the water inlet and the water outlet are both provided with flange plates.
Compared with the prior art, the utility model has the advantages that: the utility model discloses a valve wholeness structure is strong, and its intensity is high, and is longe-lived.
The sectional area of the flow channel from the water inlet to the water outlet is gradually reduced; therefore, the flow velocity of the fluid is gradually increased, the flow velocity is upgraded, the valve is not blocked by dirt, and the stability of the valve in long-term use is improved.
The runner is divided into a plurality of small runners on average, and the small runners form jet collision towards the center direction of the pipeline, so that the purpose of efficiency pressure reduction is achieved, the water flow impact force on the valve and the connecting pipeline is greatly reduced, and the service life of the valve is prolonged.
The internal structure of the valve greatly reduces the friction between the valve block and the valve body, reduces the noise of valve starting and reduces the abrasion of the valve.
Drawings
Fig. 1 is a side sectional view of a piston type flow regulating valve according to an embodiment of the present invention;
fig. 2 is a main sectional view of a piston type flow regulating valve according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.
As shown in fig. 1 and fig. 2, the utility model provides a piston type flow regulating valve, which comprises a valve body 1, a slider-crank mechanism 2 and an opening-closing mechanism 3; the crank sliding block mechanism 2 is erected in the valve body 1; the opening and closing mechanism 3 is connected with the slider-crank mechanism 2;
the crank block mechanism 2 comprises a mechanism body 21, a valve block 22 and a linkage rod 23; the mechanism body 21 is erected in the valve body 1; the valve body 1 comprises a water inlet and a water outlet; the valve block 22 is erected between the water outlet and the mechanism body 21; the valve block 22 is in transmission connection with the opening and closing mechanism 3 through a linkage rod 23;
a flow passage is formed between the valve body 1 and the mechanism body 21; the sectional area of the flow channel from the water inlet to the water outlet is gradually reduced; the flow channel is divided equally into a plurality of small flow channels 4.
The utility model discloses a valve wholeness structure is strong, and its intensity is high, and is longe-lived.
The sectional area of the flow channel from the water inlet to the water outlet is gradually reduced; therefore, the flow velocity of the fluid is gradually increased, the flow velocity is upgraded, the valve is not blocked by dirt, and the stability of the valve in long-term use is improved.
The runner is equally divided into a plurality of small runners 4, and the small runners 4 form jet collision towards the center direction of the pipeline, so that the purpose of efficiency pressure reduction is achieved, the water flow impact force on the valve and the connecting pipeline is greatly reduced, and the service life of the valve is prolonged.
The internal structure of the valve greatly reduces the friction between the valve block 22 and the valve body 1, reduces the noise of valve starting and reduces the abrasion of the valve.
In this embodiment, sealing rings are provided between the valve body 1 and the mechanism body 21 and the valve block 22, so as to realize bubble-level sealing and zero leakage.
In this embodiment, the mechanism body 21 is provided with a through hole for inserting the valve block 22; the side wall of the through hole is provided with a guide block matched with the side wall of the valve block 22; the valve block 22 is driven by the linkage rod 23 to realize axial horizontal movement under the guiding action of the guide block.
In the present embodiment, the linkage rod 23 includes a first transmission rod and a second transmission rod; one end of the first transmission rod is movably connected with the valve body 1; the other end of the first transmission rod is movably connected with one end of the second transmission rod, and the other end of the second transmission rod is in transmission link with the opening and closing mechanism 3.
In the present embodiment, the opening and closing mechanism 3 includes an opening and closing mechanism body 31, a rotating handle 32, and a guide rod 33; one end of the guide rod 33 is connected with the linkage rod 23; the other end of the guide bar 33 is connected to the turning handle 32.
In this embodiment, the water inlet and the water outlet are both provided with flanges connected to an external pipeline through the flanges.
In this embodiment, the utility model discloses a theory of operation does: an operator rotates the rotating handle 32 by screwing, so that the guide rod 33 is rotated, the guide rod 33 drives the second transmission rod to rotate, and the second transmission rod drives the valve to complete axial horizontal movement through the first transmission rod, so that the valve is opened and closed.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (6)
1. A piston type flow regulating valve is characterized by comprising a valve body, a slider-crank mechanism and an opening-closing mechanism; the crank sliding block mechanism is erected in the valve body; the opening and closing mechanism is connected with the slider-crank mechanism;
the crank sliding block mechanism comprises a mechanism body, a valve block and a linkage rod; the mechanism body is erected in the valve body; the valve body comprises a water inlet and a water outlet; the valve block is erected between the water outlet and the mechanism body; the valve block is in transmission connection with the opening and closing mechanism through the linkage rod;
a flow passage is formed between the valve body and the mechanism body; the sectional area of the flow channel from the water inlet to the water outlet is gradually reduced; the flow channel is divided equally into a plurality of small flow channels.
2. The piston-type flow regulating valve as claimed in claim 1, wherein sealing rings are provided between the valve body and said mechanism body and said valve block.
3. The piston type flow regulating valve according to claim 1, wherein a through hole for inserting the valve block is formed on the mechanism body; the side wall of the through hole is provided with a guide block matched with the side wall of the valve block; the valve block is driven by the linkage rod to realize axial horizontal movement under the guiding action of the guide block.
4. The piston-type flow regulating valve as defined in claim 1, wherein the linkage rod comprises a first drive rod and a second drive rod; one end of the first transmission rod is movably connected with the valve body; the other end of the first transmission rod is movably connected with one end of the second transmission rod, and the other end of the second transmission rod is in transmission link with the opening and closing mechanism.
5. The piston-type flow regulating valve according to claim 1, wherein the opening and closing mechanism comprises an opening and closing mechanism body, a rotating handle and a guide rod; one end of the guide rod is connected with the linkage rod; the other end of the guide rod is connected with the rotating handle.
6. The piston-type flow regulating valve as claimed in claim 1, wherein flanges are provided at both said water inlet and said water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251591.6U CN210014081U (en) | 2018-12-29 | 2018-12-29 | Piston type flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251591.6U CN210014081U (en) | 2018-12-29 | 2018-12-29 | Piston type flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210014081U true CN210014081U (en) | 2020-02-04 |
Family
ID=69312184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822251591.6U Active CN210014081U (en) | 2018-12-29 | 2018-12-29 | Piston type flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210014081U (en) |
-
2018
- 2018-12-29 CN CN201822251591.6U patent/CN210014081U/en active Active
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