Counter weight type hydraulic control butterfly valve

Abstract

The utility model relates to the field of butterfly valves, in particular to a heavy hammer type hydraulic control butterfly valve which comprises a valve body used for bearing opening and closing of a valve plate, a control cavity arranged on one side of the valve body and used for adjusting the angle of the valve plate, and a driving shaft arranged in the control cavity. The counter weight type hydraulic control butterfly valve is provided with the hydraulic cylinder, the hydraulic rod, the fixed sliding rail, the fixed sliding sleeve, the adjusting abutting plate, the wedge-shaped transverse pulling block and the fixed bolt, and when the counter weight type hydraulic control butterfly valve is in an open state, the wedge-shaped transverse pulling block can be pulled to move left and right outside the control cavity; the wedge-shaped transverse pulling block drives the adjusting abutting plate to move through the fixing sliding sleeve, the adjusting abutting plate can directly abut against the lower portion of the driving rod to limit the driving rod, and therefore after telescopic abutting of the hydraulic cylinder and the hydraulic rod on the driving rod is lost, an external heavy hammer cannot press the driving rod downwards to drive the sealing valve disc to close the valve body. And the whole heavy hammer type hydraulic control butterfly valve is in a smooth state.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valves, in particular to a heavy hammer type hydraulically controlled butterfly valve. Background Art

[0002] A butterfly valve is a common fluid control valve used to open, close or regulate the flow of fluid. The main feature of a butterfly valve is its simple structure. Its closing disc or butterfly plate is a disc that rotates around the valve axis to control the flow of the fluid. When the butterfly plate is aligned with the pipeline, the fluid can pass freely, and when the butterfly plate is perpendicular to the pipeline, the valve is closed to prevent the passage of the fluid. The heavy hammer type hydraulically controlled butterfly valve is also one of the many butterfly valves. The heavy hammer type hydraulically controlled butterfly valve is a flow diversion, confluence or flow direction switching device. The heavy hammer type hydraulically controlled butterfly valve is suitable for the pump outlet pipeline with water as the medium. As a closed-circuit pump and check valve, it is used to avoid and reduce the backflow of the medium in the pipeline system and the generation of excessive water hammer to protect the pipeline system.

[0003] After searching, a heavy hammer type hydraulically controlled slow closing check butterfly valve with a publication number of CN205101612U specifically discloses a heavy hammer type hydraulically controlled slow closing check butterfly valve, including a heavy hammer transmission mechanism, a travel switch system, a butterfly plate and a valve stem arranged on the valve body, and a valve body, and the valve stem is connected to the travel switch system through a bearing; the travel switch system includes a travel switch box, a travel switch group, a bump block, an angular travel transmitter, a temperature and humidity sensor, and a dehumidification heater; the travel switch box is arranged on the valve body, and the travel switch group, the bump block, the angular travel transmitter, the temperature and humidity sensor, and the dehumidification heater are all arranged in the travel switch box, and the temperature and humidity sensor and the dehumidification heater are arranged at a position outside the activity range of the bump block. The utility model can feedback the temperature and humidity inside the travel system, and perform heating and dehumidification through the dehumidification heater, so as to adjust the corresponding temperature and humidity due to changes in the working environment, ensure the normal operation of the travel system, prevent problems such as damage to the travel system caused by moisture, excessive humidity, and low temperature, and extend the service life of the travel switch.

[0004] When the hydraulic cylinder is in operation, the valve disc is forced to retract and the valve is retracted, which in turn causes the valve disc to move downwards, causing the valve disc to move out of the way and causing the valve disc to move out of the way.

[0005] Therefore, it is necessary to invent a heavy hammer type hydraulically controlled butterfly valve to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a heavy hammer type hydraulically controlled butterfly valve, which can realize manual adjustment through a hydraulic cylinder, a hydraulic rod, a fixed slide rail, a fixed slide sleeve, an adjusting contact plate, a wedge-shaped horizontal pull block and a fixing bolt to keep the entire heavy hammer type hydraulically controlled butterfly valve in a smooth state, thereby avoiding the problem that the hydraulic cylinder needs to be kept in a telescopic state all the time, which will cause certain wear to the hydraulic cylinder after a long time, thereby reducing the probability of the closed valve disc being unable to open and close due to a malfunction of the hydraulic cylinder. At the same time, the service life of the entire heavy hammer type hydraulically controlled butterfly valve is also extended under long-term use, saving a certain amount of maintenance cost, so as to solve the problem of the existing technology During the use of the medium-heavy hammer hydraulically controlled butterfly valve, the opening and closing angle of the closing valve disc inside the valve body is controlled by the hydraulic pressure of the hydraulic cylinder. If the heavy hammer hydraulically controlled butterfly valve is in an open state for a long time, the hydraulic cylinder needs to remain in an extended and retracted state. This will cause certain wear to the hydraulic cylinder for a long time, resulting in a hydraulic cylinder failure and the closing valve disc cannot be opened and closed. In addition, the above-mentioned comparative case also lacks a way to fix the closing valve disc after opening and closing. This not only reduces the service life of the overall heavy hammer hydraulically controlled butterfly valve under long-term use, but also increases the maintenance cost of the severely worn hydraulic cylinder.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy hammer type hydraulically controlled butterfly valve, comprising a valve body for carrying the valve plate to open and close;

[0008] A control chamber is provided on one side of the valve body and is used to adjust the valve plate angle. A driving shaft is provided inside the control chamber. A transmission rod is fixedly installed on one end of the driving shaft. A closed valve disc is fixedly installed on the outside of the transmission rod. An auxiliary flow valve sleeve is fixedly installed on one side of the closed valve disc.

[0009] The fixed slide rails are arranged on both sides of the control cavity and are used to connect the fixed slide sleeve to adjust the position. The fixed slide rails are movably connected to the outside of the fixed slide sleeve. An adjustment resistance plate is fixedly installed at one end of the fixed slide sleeve. A wedge-shaped cross-pull block is fixedly installed above the fixed slide sleeve. A fixing bolt passes through the outside of the wedge-shaped cross-pull block.

[0010] Preferably, a front flange is fixedly installed on the outside of the valve body, a connecting screw hole is opened on the outside of the front flange, a support column is fixedly installed on the bottom of the valve body, and an I-shaped mounting seat is fixedly installed on the bottom of the support column.

[0011] Preferably, a connecting frame is fixedly mounted on the outside of the driving shaft, an external weight is fixedly mounted on one end of the connecting frame, and a driving rod is arranged on the outside of the connecting frame.

[0012] Preferably, the closed valve disc is movably connected to the valve body, and the center line of the driving shaft coincides with the center line of the transmission rod.

[0013] Preferably, a hydraulic cylinder is fixedly installed inside the control chamber, and a hydraulic rod is movably connected inside the hydraulic cylinder.

[0014] Preferably, the adjustment contact plate is slidably connected to the control cavity, and the fixed sliding sleeve is used in conjunction with a fixed sliding rail.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] When the heavy hammer type hydraulic control butterfly valve is in the open state, the wedge-shaped horizontal pull block can be pulled left and right outside the control chamber to drive the adjusting contact plate to move its position through the fixed sleeve, and the adjusting contact plate can directly contact under the driving rod to limit the driving rod. In this way, after the hydraulic cylinder and the hydraulic rod lose the extension and retraction of the driving rod, the external heavy hammer cannot press down the driving rod to drive the closed valve disc to close the valve body, so that the whole heavy hammer type hydraulic control butterfly valve is in a smooth state. In this way, the coordinated use avoids the need for the hydraulic cylinder to keep the extension and retraction state all the time, which will cause certain wear to the hydraulic cylinder after a long time, thereby reducing the probability of the closed valve disc failing to open and close due to a malfunction of the hydraulic cylinder. At the same time, the service life of the whole heavy hammer type hydraulic control butterfly valve is extended under long-term use, saving certain maintenance costs.

[0017] 2. The utility model is provided with a valve body, a front flange, connecting screw holes, a supporting column and an I-shaped mounting seat. When the heavy hammer type hydraulically controlled butterfly valve is used, the front flange and the connecting screw holes can be used to conveniently connect the heavy hammer type hydraulically controlled butterfly valve and other different types of pipelines, thereby expanding the overall installation and use range of the device. At the same time, the supporting column and the I-shaped mounting seat also raise the valve body for a certain distance, which is not only convenient for the installation and use of the heavy hammer type hydraulically controlled butterfly valve in special environments, but also can prevent water accumulation at the bottom of the valve body. At the same time, the overall structure is simple, the opening and closing operation is quick and convenient, and if a fault occurs, it is also convenient for maintenance personnel to carry out repairs in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the I-shaped mounting seat structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the external weight hammer of the utility model;

[0022] Figure 4 This is a schematic diagram of the closed valve disc structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the adjusting resistance plate of the utility model.

[0024] Description of reference numerals:

[0025] 1. Valve body; 2. Front flange; 3. Connecting screw hole; 4. Support column; 5. I-shaped mounting seat; 6. Control chamber; 7. Active shaft; 8. Transmission rod; 9. Connecting frame; 10. External weight; 11. Drive rod; 12. Hydraulic cylinder; 13. Hydraulic rod; 14. Closed valve disc; 15. Auxiliary flow valve sleeve; 16. Fixed slide rail; 17. Fixed slide sleeve; 18. Adjustment contact plate; 19. Wedge-shaped cross pull block; 20. Fixing bolt. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 A heavy hammer type hydraulically controlled butterfly valve shown includes a valve body 1 for supporting the opening and closing of a valve plate;

[0028] A control chamber 6 is provided at one side of the valve body 1 and is used to adjust the valve plate angle. A driving shaft 7 is provided inside the control chamber 6. A transmission rod 8 is fixedly installed at one end of the driving shaft 7. A closed valve disc 14 is fixedly installed outside the transmission rod 8. An auxiliary flow valve sleeve 15 is fixedly installed at one side of the closed valve disc 14.

[0029] The fixed slide rail 16 is arranged on both sides of the interior of the control chamber 6 and is used to connect the fixed slide sleeve 17 to adjust the position, and the fixed slide rail 16 is movably connected to the outside of the fixed slide rail 16. An adjusting contact plate 18 is fixedly installed at one end of the fixed slide sleeve 17, and a wedge-shaped horizontal pull block 19 is fixedly installed above the fixed slide sleeve 17. The outside of the wedge-shaped horizontal pull block 19 is penetrated by a fixing bolt 20, and the wedge-shaped horizontal pull block 19 can be pulled to move left and right outside the control chamber 6, so that the wedge-shaped horizontal pull block 19 drives the adjusting contact plate 18 to move its position through the fixed slide sleeve 17. The adjusting contact plate 18 can directly contact the driving rod 11 to limit the driving rod 11. In this way, after the hydraulic cylinder 12 and the hydraulic rod 13 lose the telescopic contact with the driving rod 11, the external weight 10 cannot press down the driving rod 11 to drive the closing valve disc 14 to close the valve body 1, so that the entire weight-type hydraulically controlled butterfly valve is in a smooth state.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a front flange 2 is fixedly installed on the outside of the valve body 1, and a connecting screw hole 3 is opened on the outside of the front flange 2. A support column 4 is fixedly installed on the bottom of the valve body 1, and an I-shaped mounting seat 5 is fixedly installed on the bottom of the support column 4. The front flange 2 and the connecting screw hole 3 can be used to facilitate the connection of the heavy hammer type hydraulically controlled butterfly valve and other different types of pipelines, thereby expanding the overall installation and use range of the device. A connecting frame 9 is fixedly installed on the outside of the active shaft 7, and an external heavy hammer 10 is fixedly installed on one end of the connecting frame 9. A driving rod 11 is arranged on the outside of the connecting frame 9. When the heavy hammer type hydraulically controlled butterfly valve is closed, the control of the hydraulic cylinder 12 and the hydraulic rod 13 can be released, so that the external heavy hammer 10 can drive the connecting frame 9 to press down the driving rod 11, and the active shaft 7 can be rotated to close the heavy hammer type hydraulically controlled butterfly valve.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, the closed valve disc 14 is movably connected to the valve body 1, the center line of the active shaft 7 coincides with the center line of the transmission rod 8, the closed valve disc 14 can be completely fitted inside the valve body 1 to complete the opening and closing of the valve body 1, a hydraulic cylinder 12 is fixedly installed inside the control chamber 6, and a hydraulic rod 13 is movably connected inside the hydraulic cylinder 12. The power of the hydraulic cylinder 12 and the hydraulic rod 13 is sufficient to complete the extension and retraction of the drive rod 11, so that the closed valve disc 14 can be adjusted in angle in the valve body 1 to realize the opening and closing of the heavy hammer type hydraulic control butterfly valve, the adjusting contact plate 18 is slidably connected to the control chamber 6, the fixed sliding sleeve 17 is used in conjunction with the fixed sliding rail 16, and the adjusting contact plate 18 can directly contact under the drive rod 11 to limit the drive rod 11. In this way, after the hydraulic cylinder 12 and the hydraulic rod 13 lose the extension and retraction contact with the drive rod 11, the external heavy hammer 10 cannot press down the drive rod 11 to drive the closed valve disc 14 to close the valve body 1.

[0032] Working principle of the utility model: firstly, connect the external power supply, and according to the use environment where the heavy hammer type hydraulic control butterfly valve needs to be installed, first connect the heavy hammer type hydraulic control butterfly valve with other different types of pipelines through the front flange 2 and the connecting screw hole 3, and then, if the heavy hammer type hydraulic control butterfly valve needs to be opened for use, the switch of the hydraulic cylinder 12 can be turned on, and the hydraulic cylinder 12 and the hydraulic rod 13 can be extended and retracted to resist the pressing driving rod 11, and then one end of the driving rod 11 is affected by the downward pressure, and the other end is tilted to drive the connecting frame 9 and the external heavy hammer 10 to rise The driving shaft 7 rotates under the influence of the lifting of the connecting frame 9, and the linkage transmission rod 8 and the closed valve disc 14 complete the angle adjustment on the valve body 1, so that the valve body 1 is opened, so that the liquid entering the heavy hammer type hydraulic control butterfly valve from other pipelines can flow, and then when the heavy hammer type hydraulic control butterfly valve is in an open state, the wedge-shaped horizontal pull block 19 can be pulled to move left and right outside the control chamber 6, so that the wedge-shaped horizontal pull block 19 drives the adjusting contact plate 18 to move its position through the fixed sliding sleeve 17, and then the adjusting contact plate 18 can directly contact Under the driving rod 11, the driving rod 11 is limited. In this way, after the hydraulic cylinder 12 and the hydraulic rod 13 lose the extension and retraction resistance to the driving rod 11, the external weight 10 cannot press down the driving rod 11 to drive the closed valve disc 14 to close the valve body 1, so that the entire weight-type hydraulically controlled butterfly valve is in a smooth state, which is convenient for the circulation and use of the weight-type hydraulically controlled butterfly valve. In this way, it is avoided that the hydraulic cylinder 12 needs to be kept in the extended state all the time, which will cause certain wear to the hydraulic cylinder 12 after a long time. Then, when the weight-type hydraulically controlled butterfly valve needs to be closed , just twist out the fixing bolt 20 that fixes the position of the wedge-shaped horizontal pull block 19, pull the wedge-shaped horizontal pull block 19 outward, let the adjustment contact plate 18 leave the internal space of the control chamber 6, and then let the hydraulic cylinder 12 and the hydraulic rod 13 extend and retract to close the heavy hammer type hydraulic control butterfly valve. Finally, after completing the installation and opening and closing of all the heavy hammer type hydraulic control butterfly valves according to the above operations, perform daily maintenance on the device, and cut off the external power supply if it is not used for a long time. In this way, the use process of the connecting parts of the heavy hammer type hydraulic control butterfly valve is completed.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heavy hammer type hydraulically controlled butterfly valve, characterized in that: include A valve body (1) is used to support the opening and closing of the valve plate; A control chamber (6) is arranged at one side of the valve body (1) and is used to adjust the angle of the valve plate. A driving shaft (7) is arranged inside the control chamber (6). A transmission rod (8) is fixedly mounted on one end of the driving shaft (7). A closed valve disc (14) is fixedly mounted on the outside of the transmission rod (8). An auxiliary flow valve sleeve (15) is fixedly mounted on one side of the closed valve disc (14). A fixed slide rail (16) is arranged on both sides of the control chamber (6) and is used to connect to a fixed slide sleeve (17) to adjust the position, and the fixed slide rail (16) is movably connected to the fixed slide sleeve (17) on the outside, an adjustment contact plate (18) is fixedly installed on one end of the fixed slide sleeve (17), a wedge-shaped horizontal pull block (19) is fixedly installed above the fixed slide sleeve (17), and a fixing bolt (20) penetrates the outside of the wedge-shaped horizontal pull block (19).

2. A weight-type hydraulically controlled butterfly valve according to claim 1, characterized in that: A front flange (2) is fixedly mounted on the outside of the valve body (1), a connection screw hole (3) is provided on the outside of the front flange (2), a support column (4) is fixedly mounted on the bottom of the valve body (1), and an I-shaped mounting seat (5) is fixedly mounted on the bottom of the support column (4).

3. A heavy hammer type hydraulically controlled butterfly valve according to claim 1, characterized in that: A connecting frame (9) is fixedly mounted on the outside of the driving shaft (7), an external weight (10) is fixedly mounted on one end of the connecting frame (9), and a driving rod (11) is arranged on the outside of the connecting frame (9).

4. A weight-type hydraulically controlled butterfly valve according to claim 1, characterized in that: The closed valve disc (14) is movably connected to the valve body (1), and the center line of the driving shaft (7) coincides with the center line of the transmission rod (8).

5. The heavy hammer type hydraulically controlled butterfly valve according to claim 1, characterized in that: A hydraulic cylinder (12) is fixedly installed inside the control chamber (6), and a hydraulic rod (13) is movably connected inside the hydraulic cylinder (12).

6. A weight-type hydraulically controlled butterfly valve according to claim 1, characterized in that: The adjusting contact plate (18) is slidably connected to the control chamber (6), and the fixed sliding sleeve (17) is used in conjunction with the fixed sliding rail (16).

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