Hydraulic driving equipment for butterfly valve

Abstract

The utility model relates to the technical field of butterfly valve driving structures, and discloses butterfly valve hydraulic driving equipment which comprises a butterfly valve body, a box body is placed on one side of the butterfly valve body, and a barrel body is placed on one side of the box body. A valve plate is integrally and movably mounted in the middle of the butterfly valve body, a valve rod movably penetrates through one side wall of the butterfly valve body, and the valve rod is connected with the valve plate; the outer end of the valve rod movably penetrates through the box body. The hydraulic cylinder, the arc-shaped plates and the box body are arranged, the movable block can be moved outwards by applying force, the arc-shaped plates penetrate through the opening to enter the box body, then the hydraulic cylinder drives the sliding block to move in the sliding rail, the two sets of arc-shaped plates are clamped on the outer side of the end of the valve rod in the box body until the anti-skid pad sufficiently abuts against the valve rod, and then the hand wheel is rotated, so that the valve rod is fixed. The hydraulic driving device is taken away and stored after adjustment is completed, and the bald valve rod is located in the box body and is matched with the driving device to be taken away, so that maloperation adjustment of other people can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve driving structures, and specifically relates to a hydraulic driving device for a butterfly valve. Background Technique

[0002] In the control of pipeline medium switching, butterfly valves are often used. A butterfly valve, also called a flap valve, is a simple regulating valve. Its general working principle is: the valve plate is driven by a power component to move, and the valve plate reciprocates and rotates in the butterfly valve to open or close the channel in the butterfly valve. Due to the low cost and good sealing performance of the butterfly valve, it is widely used.

[0003] In the process of implementing the present utility model, the inventor found that the following problems in the prior art have not been solved: Most of the existing butterfly valve driving devices are external handwheels and valve stems. The user rotates the handwheel to drive the valve stem to rotate to realize the adjustment of the valve plate. However, the external design of the handwheel and valve stem is prone to misoperation by non-professionals. Some use a form of separate disassembly of the handwheel, and its valve stem is exposed. Although it has a certain anti-misoperation effect, the anti-misoperation effect is not ideal and needs to be improved urgently. Therefore, we propose a hydraulic driving device for a butterfly valve. Content of the Utility Model

[0004] The purpose of the present utility model is to provide a hydraulic driving device for a butterfly valve, which solves the problems raised in the background technique.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A hydraulic driving device for a butterfly valve, including a butterfly valve body. A box body is placed on one side of the butterfly valve body, and a cylinder body is placed on one side of the box body;

[0006] A valve plate is integrally and movably installed in the middle of the butterfly valve body. A valve stem movably penetrates through one side wall of the butterfly valve body, and the valve stem is connected to the valve plate;

[0007] The outer end of the valve stem movably penetrates through the box body, and an opening is provided on one side of the box body;

[0008] A receiving groove is provided in the cylinder body. A movable block is placed on one side in the receiving groove. T-shaped rods are fixedly installed at both inner ends of the movable block. The T-shaped rods movably penetrate through the side wall of the limiting frame, and the limiting frame is fixedly connected to the cylinder body;

[0009] A slide rail is fixedly installed on one side in the movable block. Sliders are movably clamped on both sides inside the slide rail. The sliders are fixedly connected to the transmission shaft of the hydraulic cylinder, and the hydraulic cylinder is fixed on the inner wall of the movable block;

[0010] An arc-shaped plate is fixedly installed on the outer side of the slider, and an anti-slip pad is fixedly installed on the inner side of the arc-shaped plate;

[0011] A handwheel is fixedly installed on one side of the cylinder body away from the box body. The components such as the hydraulic cylinder, the arc plate, and the box body can be used in cooperation. During the use of the hydraulic drive device, the movable block can be moved outward by applying force, and the arc plate can pass through the opening and enter the inside of the box body. Subsequently, the hydraulic cylinder drives the slider to move in the slide rail, so that the two arc plates clamp the outside of the end of the valve stem in the box body until the anti-slip pad presses sufficiently. Then, the handwheel is rotated, and the valve stem can be driven to rotate in cooperation with the cylinder body. After the adjustment is completed, the hydraulic drive device is taken away and stored. Since the bare valve stem is located in the box body and the drive device is taken away in cooperation, it can effectively prevent others from accidentally adjusting.

[0012] As an alternative embodiment of the technical solution of the present application, a rod groove is formed at the top of the movable block, and a screw hole is formed on the side wall of the cylinder body, and a screw is screwed in the screw hole. The components such as the rod groove and the screw can be used in cooperation. Before carrying or storing the drive device, the movable block can be moved by applying force until it contacts the limit frame. At this time, the screw is rotated, and the screw extends inward and is clamped in the rod groove, so that the arc plate can be limited in the accommodating groove of the cylinder body, which can avoid the arc plate protruding outward and being damaged by impact deformation, and has a good protection effect.

[0013] As an alternative embodiment of the technical solution of the present application, a storage battery is fixedly installed on the front side of the cylinder body. Wire holes are formed on one side of the movable block close to the slide rail and on the side wall of the cylinder body, and the storage battery is electrically connected to the hydraulic cylinder through a wire. The electric energy can be provided by the storage battery, so there is no need to pull a long wire, which meets the power supply requirements of the mobile and handheld device.

[0014] As an alternative embodiment of the technical solution of the present application, flanges are fixedly installed on both the front and rear sides of the butterfly valve body. A plurality of groups of uniformly arranged positioning holes are formed in the flanges. Bolts can pass through the positioning holes of the flanges and be screwed with a preset threaded structure outside, for the stable and detachable limit of the butterfly valve.

[0015] As an alternative embodiment of the technical solution of the present application, an indicator plate is fixedly installed on the side of the cylinder body facing away from the storage battery, and the indicator plate is fixed by welding. The corresponding procedures can be informed to the operator through the guiding words on the indicator plate, which is convenient for different personnel to operate and use.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. A hydraulic driving device for a butterfly valve of the present utility model is provided with a hydraulic cylinder, an arc plate and a box body. During the use of the hydraulic driving device, the movable block can be moved outwards by applying force, and the arc plate can pass through the opening and enter the inside of the box body. Subsequently, the hydraulic cylinder drives the slider to move in the slide rail, so that the two arc plates are clamped outside the end of the valve stem in the box body until the anti-slip pad presses sufficiently. Then, the hand wheel is rotated, and the valve stem can be driven to rotate in cooperation with the cylinder body. After the adjustment is completed, the hydraulic driving device is taken away and stored. Since the bare valve stem is located in the box body and the driving device is taken away in cooperation, it can effectively prevent others from adjusting it by mistake.

[0018] 2. A hydraulic driving device for a butterfly valve of the present utility model is provided with a rod groove and a screw rod. Before carrying or storing the driving device, the movable block can be moved by applying force and made to contact the limiting frame. At this time, the screw rod is rotated, and the screw rod extends inwards and is clamped in the rod groove, so that the arc plate can be limited in the accommodating groove of the cylinder body, and the arc plate can be prevented from protruding and being damaged by impact deformation, having a good protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0020] Figure 1 It is a schematic front view structure diagram of the whole hydraulic driving device for a butterfly valve of the present utility model;

[0021] Figure 2 It is a schematic cross-sectional structure diagram of the cylinder body part of the hydraulic driving device for a butterfly valve of the present utility model;

[0022] Figure 3 It is a schematic cross-sectional structure diagram of the positional relationship between the box body and the valve stem of the hydraulic driving device for a butterfly valve of the present utility model.

[0023] In the figure: 1, butterfly valve body; 11, valve plate; 12, valve stem; 13, flange; 14, positioning hole; 2, box body; 21, opening; 3, hand wheel; 4, cylinder body; 41, screw rod; 42, screw hole; 43, accommodating groove; 44, limiting frame; 45, T-shaped rod; 5, movable block; 51, rod groove; 52, slide rail; 53, arc plate; 54, anti-slip pad; 55, hydraulic cylinder; 56, slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please refer to Figures 1 - 3, the present utility model provides a technical solution: a butterfly valve hydraulic drive device, including a butterfly valve body 1. Flanges 13 are fixedly installed on both the front and rear sides of the butterfly valve body 1. A number of uniformly arranged positioning holes 14 are opened in the flanges 13. Bolts can pass through the positioning holes 14 of the flanges 13 and be screwed with a preset threaded structure outside, for the stable and detachable limit of the butterfly valve. A box body 2 is placed on one side of the butterfly valve body 1, and a cylinder body 4 is placed on one side of the box body 2; A valve plate 11 is integrally formed and movably installed in the middle of the butterfly valve body 1. A valve rod 12 movably penetrates through one side wall of the butterfly valve body 1, and the valve rod 12 is connected to the valve plate 11; The outer end of the valve rod 12 movably penetrates through the box body 2, and an opening 21 is opened on one side of the box body 2; A receiving groove 43 is opened in the cylinder body 4. A movable block 5 is placed on one side in the receiving groove 43. T-shaped rods 45 are fixedly installed at both inner ends of the movable block 5. The T-shaped rods 45 movably penetrate through the side wall of the limiting frame 44, and the limiting frame 44 is fixedly connected to the cylinder body 4; A slide rail 52 is fixedly installed on one side inside the movable block 5. Sliders 56 are movably clamped on both sides inside the slide rail 52. The sliders 56 are fixedly connected to the transmission shaft of the hydraulic cylinder 55, and the hydraulic cylinder 55 is fixed on the inner wall of the movable block 5. A storage battery is fixedly installed on the front side of the cylinder body 4. Line holes are opened on one side of the movable block 5 close to the slide rail 52 and on the side wall of the cylinder body 4. The storage battery is electrically connected to the hydraulic cylinder 55 through a wire. Electric energy can be provided by the storage battery, so there is no need to pull long wires, meeting the power supply requirements of mobile and handheld devices. A sign is fixedly installed on the side of the cylinder body 4 facing away from the storage battery, and the sign is fixed by welding. The corresponding procedures can be informed to the operator through the guiding words on the sign, facilitating the operation and use by different personnel; An arc-shaped plate 53 is fixedly installed on the outer side of the slider 56, and an anti-slip pad 54 is fixedly installed on the inner side of the arc-shaped plate 53; A handwheel 3 is fixedly installed on the side of the cylinder body 4 away from the box body 2.

[0026] In this technical solution, components such as the hydraulic cylinder 55, the arc-shaped plate 53 and the box body 2 can be used in cooperation. During the use of the hydraulic drive device, the movable block 5 can be moved outward by applying force, and the arc-shaped plate 53 can pass through the opening 21 and enter the inside of the box body 2. Subsequently, the hydraulic cylinder 55 drives the slider 56 to move in the slide rail 52, so that the two arc-shaped plates 53 clamp the outside of the end of the valve rod 12 in the box body 2 until the anti-slip pad 54 presses sufficiently. Then, the handwheel 3 is rotated, and the valve rod 12 can be driven to rotate by cooperating with the cylinder body 4. After the adjustment is completed, the hydraulic drive device is taken away and stored. Since the bare valve rod 12 is located in the box body 2 and the drive device is taken away in cooperation, it can effectively prevent others from accidentally moving and adjusting.

[0027] In some technical solutions, a rod groove 51 is opened at the top of the movable block 5, a screw hole 42 is opened on the side wall of the cylinder body 4, and a screw rod 41 is screwed in the screw hole 42.

[0028] In this technical solution, components such as the rod groove 51 and the screw rod 41 can be used in cooperation. Before carrying or storing the driving device, the movable block 5 can be moved by applying force and made to contact the limiting frame 44. At this time, the screw rod 41 is rotated. The screw rod 41 extends inward and is clamped in the rod groove 51, so that the arc-shaped plate 53 can be limited in the accommodation groove 43 of the cylinder body 4, and the arc-shaped plate 53 can be prevented from protruding outward and being damaged by impact deformation, having a good protection effect.

[0029] Working principle: It should be noted that the present utility model is a hydraulic driving device for a butterfly valve. The components are all common standard parts or parts known to those skilled in the art. Its structure and principle can be known by those skilled in the art through technical manuals or obtained through conventional test methods.

[0030] When a hydraulic driving device for a butterfly valve is in use, the butterfly valve is carried to the assembly station, and then fixed through the flange 13 and its positioning holes. During this period, by rotating the valve stem 12, the valve plate 11 is driven to rotate to open and close the butterfly valve for adjustment.

[0031] By providing the hydraulic cylinder 55, the arc-shaped plate 53 and the box body 2, during the use of the hydraulic driving device, the movable block 5 can be moved outward by applying force, and the arc-shaped plate 53 can be made to pass through the opening 21 and enter the inside of the box body 2. Subsequently, the hydraulic cylinder 55 drives the slider 56 to move in the slide rail 52, so that the two arc-shaped plates 53 are clamped outside the end of the valve stem 12 in the box body 2 until the anti-slip pad 54 is sufficiently pressed. Then, the rotary handwheel 3 is used, and the cylinder body 4 can be used to drive the valve stem 12 to rotate. After the adjustment is completed, the hydraulic driving device is taken away and stored. Since the bare valve stem 12 is located in the box body 2 and the driving device is taken away in cooperation, it can effectively prevent others from adjusting it by mistake. By providing the rod groove 51 and the screw rod 41, before carrying or storing the driving device, the movable block 5 can be moved by applying force and made to contact the limiting frame 44. At this time, the screw rod 41 is rotated. The screw rod 41 extends inward and is clamped in the rod groove 51, so that the arc-shaped plate 53 can be limited in the accommodation groove 43 of the cylinder body 4, and the arc-shaped plate 53 can be prevented from protruding outward and being damaged by impact deformation, having a good protection effect.

Claims

1. A butterfly valve hydraulic drive device, characterized in that: It includes a butterfly valve body (1), a box body (2) is placed on one side of the butterfly valve body (1), and a cylinder body (4) is placed on one side of the box body (2); A valve plate (11) is integrally formed and movably installed in the middle of the butterfly valve body (1), a valve rod (12) movably penetrates through one side wall of the butterfly valve body (1), and the valve rod (12) is connected to the valve plate (11); The outer end of the valve rod (12) movably penetrates through the box body (2), and an opening (21) is provided on one side of the box body (2); A receiving groove (43) is provided in the cylinder body (4), a movable block (5) is placed on one side in the receiving groove (43), T-shaped rods (45) are fixedly installed at both ends of the inner side of the movable block (5), the T-shaped rods (45) movably penetrate through the side wall of the limiting frame (44), and the limiting frame (44) is fixedly connected to the cylinder body (4); A slide rail (52) is fixedly installed on one side in the movable block (5), both sides in the slide rail (52) are movably clamped with sliders (56), the sliders (56) are fixedly connected to the transmission shaft of the hydraulic cylinder (55), and the hydraulic cylinder (55) is fixed on the inner wall of the movable block (5); An arc-shaped plate (53) is fixedly installed on the outer side of the slider (56), and an anti-slip pad (54) is fixedly installed on the inner side of the arc-shaped plate (53); A handwheel (3) is fixedly installed on one side of the cylinder body (4) away from the box body (2).

2. A butterfly valve hydraulic drive device according to claim 1, characterized in that: A rod groove (51) is provided at the top of the movable block (5), a screw hole (42) is provided on the side wall of the cylinder body (4), and a screw (41) is screwed in the screw hole (42).

3. A butterfly valve hydraulic drive device according to claim 2, characterized in that: A storage battery is fixedly installed on the front side of the cylinder body (4), wire holes are provided on one side of the movable block (5) close to the slide rail (52) and on the side wall of the cylinder body (4), and the storage battery is electrically connected to the hydraulic cylinder (55) through a wire.

4. A butterfly valve hydraulic drive device according to claim 1, characterized in that: Flanges (13) are fixedly installed on both the front and rear sides of the butterfly valve body (1), and a number of uniformly arranged positioning holes (14) are provided in the flanges (13).

5. A butterfly valve hydraulic drive device according to claim 1, characterized in that: A signboard is fixedly installed on one side of the cylinder body (4) facing away from the storage battery, and the signboard is fixed by welding.

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