CN211693547U

CN211693547U - Hydraulic control valve

Info

Publication number: CN211693547U
Application number: CN201922461651.1U
Authority: CN
Inventors: 陈�光
Original assignee: Tianjin Bovos Valve Co ltd
Current assignee: Tianjin Bovos Valve Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-16
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a hydraulic control valve, including the valve body, seted up in the valve body and be cylindric installation cavity, be provided with controlling means in the installation cavity, the half slot has been seted up to the installation cavity bottom, be provided with current limiting device in the half slot, the opening that flows that runs through the valve body is all seted up to the half slot left and right sides, is located and is provided with pressure conversion equipment on the left opening lateral wall that flows. The utility model discloses, slide mouthful effect through the arcuation that sets up in water inlet department, make the installation cavity reduce with the interior external pressure difference of inlet tube through the slider, make more convenience when adjusting, when the water hammer phenomenon takes place, realize buffering and absorbing the shock wave that the water hammer phenomenon produced through the intraoral slider of arcuation slide, thereby the valve body breaks in effectual preventing to appear, through setting up the rubber arc piece on conflict arc piece on closing the piece and the half slot, realize the cooperation through the pivot and rotate again, thereby it is inseparabler to make closing piece and half slot conflict, prevent to appear revealing.

Description

Hydraulic control valve

Technical Field

The utility model relates to a control valve technical field especially relates to hydraulic control valve.

Background

The hydraulic control valve can be divided into a diaphragm type and a piston type according to a control mode, the opening, the closing or the regulation and the control of the opening degree of the valve are mainly realized by means of a valve clack or an internal piston transmission mechanism, an execution mechanism of the hydraulic control valve is made of rigid materials, the deviation of an adjusting point and a working condition can cause the abnormal work of the control valve, the control procedures are excessive, the fault rate is increased, the structure is complex, the manufacturing process is complex, the manufacturing cost is high, the existing control valve is labor-consuming to close when the water flow is large, the sealing performance is poor, and moreover, the water hammer phenomenon is easily generated when the water flow is closed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing control valve is easy to break the valve body due to the water hammer phenomenon when being closed, and providing the hydraulic control valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the hydraulic control valve comprises a valve body, a cylindrical installation cavity is formed in the valve body, a control device is arranged in the installation cavity, a semicircular groove is formed in the bottom of the installation cavity, a current limiting device is arranged in the semicircular groove, flow openings penetrating through the valve body are formed in the left side and the right side of the semicircular groove, a connecting flange is fixedly connected to the side wall of the valve body and is located at the position of the flow openings, a connecting hole is formed in the connecting flange, and a pressure conversion device is arranged on the side wall of the flow openings and is located on the left side.

Preferably, the control device comprises a semicircular closing block arranged in the installation cavity, a cylindrical block is fixedly connected above the closing block, a rotating shaft is rotatably connected to the cylindrical block, a threaded hole penetrating through the side wall is formed in the top of the installation cavity, the rotating shaft penetrates through the threaded hole and extends outwards and is connected with a control handle, and the rotating shaft is in threaded connection with the threaded hole.

Preferably, the current limiting device comprises rubber arc blocks which are uniformly distributed in the semicircular groove, and a plurality of abutting arc blocks corresponding to the rubber arc blocks are fixedly connected to the outer side wall of the closing block.

Preferably, the pressure conversion device comprises an arc-shaped sliding opening which is formed in the side wall of the flow opening and penetrates through the flow opening to the installation cavity, the side walls at two ends of the arc-shaped sliding opening are respectively provided with a limiting ring, and the inner side wall of the arc-shaped sliding opening is connected with an arc-shaped sliding block in a sliding mode.

Preferably, the cylindrical block is provided with a trigger cavity, the bottom of the trigger cavity is provided with a cross groove, and the rotating shaft penetrates through the trigger cavity and is connected with the cross block.

Preferably, the upper end and the lower end of the threaded hole are both fixedly connected with a sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the arc-shaped sliding opening effect arranged at the water inlet, the pressure difference between the inside and the outside of the installation cavity and the water inlet pipe is reduced through the sliding block, so that the adjustment is more convenient.

2. Through setting up the rubber arc piece on conflict arc piece and the half slot on closing the piece, realize the cooperation through the pivot and rotate again to it is inseparabler to make to close piece and half slot conflict, prevents to appear revealing.

3. When the water hammer phenomenon occurs, the shock wave generated by the water hammer phenomenon is buffered and absorbed through the sliding block in the arc-shaped sliding port, so that the valve body is effectively prevented from being broken.

Drawings

Fig. 1 is a schematic structural diagram of a hydraulic control valve provided by the present invention;

fig. 2 is a schematic diagram of a partial top view structure of the hydraulic control valve provided by the present invention.

In the figure: the valve comprises a valve body 1, a mounting cavity 2, a semicircular groove 3, a connecting flange 4, a closing block 5, a cylindrical block 6, a rotating shaft 7, a control handle 8, a rubber arc block 9, a butting arc block 10, an arc sliding opening 11, a sliding block 12, a trigger cavity 13 and a cross block 14.

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.

Referring to fig. 1-2, the hydraulic control valve, including valve body 1, it is cylindric installation cavity 2 to have seted up in valve body 1, be provided with controlling means in the installation cavity 2, semicircular groove 3 has been seted up to installation cavity 2 bottom, the diameter of semicircular groove 3 is the same with the diameter of installation cavity, realize seamless connection, be provided with current limiting device in the semicircular groove 3, the mouth that flows that runs through valve body 1 is all seted up to the 3 left and right sides in semicircular groove, be located fixedly connected with flange 4 on the valve body 1 lateral wall of the mouth department that flows, flange 4 is prior art, do not do the repeated description here, the connecting hole has been seted up on flange 4, be located and be provided with pressure conversion equipment on the left mouth lateral wall that flows, wherein be located left flange 4 that flows the mouth department and be connected with the.

Further, controlling means is including setting up the half circular closing piece 5 in installation cavity 2, close 5 top fixedly connected with cylinder pieces 6 of piece, wherein be provided with the sealing ring of rubber material on the 6 lateral walls of cylinder piece, seal, close the external diameter of 5 and cylinder pieces 6 and the internal diameter looks adaptation of installation cavity, and in close contact with, it is connected with pivot 7 to rotate on the cylinder piece 6, the screw hole that runs through the lateral wall is seted up at 2 tops of installation cavity, pivot 7 runs through the screw hole and outwards extends and is connected with control handle 8, pivot 7 and screw hole threaded connection, the thread groove has been seted up to 7 lateral walls of pivot, through thread groove and screw hole inside wall threaded connection.

Further, current limiting device includes rubber arc piece 9 of evenly distributed in half slot 3, closes a plurality of conflict arc pieces 10 that correspond with rubber arc piece 9 of fixedly connected with on 5 lateral walls of piece, wherein its material of conflict arc piece 10 is rubber materials, and rubber arc piece 9 sets up for the slope with conflict arc piece 10, and its concrete shape please see fig. 2, and its effect is through rubber arc piece 9 and conflict arc piece 10 combined action realization conflict to realize sealed effect.

Further, the pressure conversion device comprises an arc-shaped sliding opening 11 which is formed in the side wall of the flow opening and penetrates through the mounting cavity 2, limiting rings are arranged on the side walls of two ends of the arc-shaped sliding opening 11, the movement of the sliding block 12 is limited through the limiting rings to prevent the sliding block from separating from the arc-shaped sliding opening 11, the inner side wall of the arc-shaped sliding opening 11 is connected with the sliding block 12 in an arc shape in a sliding mode, and the sliding block 12 enables the mounting cavity 12 to be isolated from the flow opening.

Furthermore, a trigger cavity 13 is formed in the cylindrical block 6, a cross groove is formed in the bottom of the trigger cavity 13, the rotating shaft 7 penetrates through the trigger cavity 13 and is connected with a cross block 14, a through hole is formed in the trigger cavity 13, and the inner side wall of the through hole is in sliding connection with the inner side wall of the rotating shaft 7.

Furthermore, the sealing rings are fixedly connected to the upper end and the lower end of the threaded hole, and the sealing performance in the installation cavity is guaranteed through the sealing rings.

In the utility model

When the valve is used, the connecting flange 4 on one side provided with the pressure conversion device is connected with the water inlet pipe, the connecting flange 4 on the other end is connected with the water outlet pipe, when water quantity control is carried out, the control handle 8 is rotated to enable the rotating shaft 7 connected with the control handle to rotate, so that the cylindrical block 6 connected with the control handle in a rotating mode is abutted against the closing block 5 to move downwards, at the moment, the cross block 14 is not limited in the trigger groove 13, the closing block 5 is not driven to rotate, the water pressure on the water inlet pipe acts on the sliding block 12 through the arc-shaped sliding opening 11 formed in the valve body 1, the sliding block 12 moves, certain air pressure is applied to the installation cavity 2, the difference between the internal pressure and the external pressure is reduced, and the valve is easily adjusted;

when the valve needs to be closed, the control handle 8 is continuously rotated to enable the rotating shaft 7 connected with the control handle to rotate, when the rotating shaft 7 pushes the closing block 5 into the semicircular groove 3, the rotating shaft 7 is continuously rotated to enable the cross block 14 positioned in the trigger cavity 13 to be positioned in the cross groove, so that the rotating shaft 7 is connected with the cylindrical block 6, and then the rotating shaft 7 is continuously rotated to enable the closing block 5 connected with the cylindrical block 6 to rotate, so that the pushing arc blocks 10 originally positioned between the rubber arc blocks 9 are pushed against the rubber arc blocks 9, so that the sealing is tighter, and the leakage is prevented;

furthermore, when the water hammer phenomenon occurs, the buffer is performed through the arc-shaped sliding port 11 arranged at the water inlet, when the closing block 5 moves downwards, the pressure in the mounting cavity 2 is reduced, so that the impact force acting on the valve body 1 when the water hammer phenomenon occurs can be offset through the movement of the sliding block 12 in the arc-shaped sliding port 11, and the valve body 1 is protected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Hydraulic control valve, including valve body (1), its characterized in that, set up in valve body (1) and be cylindric installation cavity (2), be provided with controlling means in installation cavity (2), semicircular groove (3) have been seted up to installation cavity (2) bottom, be provided with current limiting device in semicircular groove (3), the mouth that flows that runs through valve body (1) is all seted up to the semicircular groove (3) left and right sides, is located the mouth that flows fixedly connected with flange (4) on valve body (1) lateral wall, the connecting hole has been seted up on flange (4), is located left be provided with pressure conversion equipment on the mouth lateral wall that flows.

2. The hydraulic control valve according to claim 1, wherein the control device comprises a semicircular closing block (5) arranged in the installation cavity (2), a cylindrical block (6) is fixedly connected above the closing block (5), a rotating shaft (7) is rotatably connected to the cylindrical block (6), a threaded hole penetrating through the side wall is formed in the top of the installation cavity (2), the rotating shaft (7) extends outwards through the threaded hole and is connected with a control handle (8), and the rotating shaft (7) is in threaded connection with the threaded hole.

3. The hydraulic control valve according to claim 2, wherein the flow-limiting device comprises rubber arc blocks (9) uniformly distributed in the semicircular groove (3), and a plurality of abutting arc blocks (10) corresponding to the rubber arc blocks (9) are fixedly connected to the outer side wall of the closing block (5).

4. The hydraulic control valve according to claim 1, wherein the pressure conversion device comprises an arc-shaped sliding opening (11) formed in the side wall of the flow opening and penetrating through the mounting cavity (2), limiting rings are arranged on the side walls of two ends of the arc-shaped sliding opening (11), and an arc-shaped sliding block (12) is connected to the inner side wall of the arc-shaped sliding opening (11) in a sliding mode.

5. The hydraulic control valve according to claim 2, wherein the cylindrical block (6) is provided with a trigger cavity (13), the bottom of the trigger cavity (13) is provided with a cross-shaped groove, and the rotating shaft (7) penetrates through the trigger cavity (13) and is connected with a cross-shaped block (14).

6. The hydraulic control valve as recited in claim 2, wherein the threaded holes are fixedly connected with sealing rings at both upper and lower ends thereof.