Counter weight type ejector rod electro-hydraulic valve

Abstract

The utility model relates to a counter weight type ejector rod electro-hydraulic valve which comprises a valve body and a valve plate arranged in the valve body, the valve body is provided with a valve cavity, the valve plate is connected with the valve body in a rotating mode, the valve plate is located in the valve cavity, a valve outer sealing ring is arranged in the valve body, and a valve inner sealing ring is arranged on the outer ring of the valve plate. One side of the valve plate is provided with a rotating shaft rotationally connected with the valve body, the other side of the valve plate is provided with an executing shaft rotating with the valve body, a driving connecting seat is fixedly connected outside the valve body, an executing hydraulic cylinder is rotationally connected to the driving connecting seat, a crank is arranged on the executing shaft, a balance weight is arranged at the tail end of the crank, and a hydraulic rod of the executing hydraulic cylinder is hinged to the crank. The crank is provided with a vertically-extending opening position and a horizontally-extending closing position. The hydraulic cylinder and the balance weight are connected to the same crank, opening and closing of the valve are achieved, the structure is simple and compact, and maintenance is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve actuator, especially a heavy hammer type ejector rod electrohydraulic valve. BACKGROUND

[0002] In the current water treatment valve industry, there are valves that need to act quickly, even if the power is lost, the angle rotation type safety valve can ensure the action and function, for example, pump after quick closing slow closing protection valve, burst pipe protection valve, water turbine inlet safety valve, quick opening drain valve, etc., the actuator thereof is usually an energy storage type actuator, which is usually a heavy hammer type electrohydraulic actuator or a nitrogen energy storage tank type electrohydraulic actuator. Both of these actuators are usually large in size, complex in structure, high in cost and difficult to maintain. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model aims at providing a heavy hammer type ejector rod electrohydraulic valve.

[0004] The utility model discloses a heavy hammer type ejector rod electrohydraulic valve that adopts the technical scheme of solving its technical problem, which comprises a valve body, a valve plate arranged in the valve body, a valve chamber arranged in the valve body, the valve plate being rotatably connected with the valve body, the valve plate being arranged in the valve chamber, a valve outer sealing ring arranged in the valve body, a valve inner sealing ring arranged on the outer ring of the valve plate, a rotating shaft rotatably connected with the valve body and arranged on one side of the valve plate, a rotating actuating shaft rotatably connected with the valve body and arranged on the other side of the valve plate, a driving connecting seat fixedly connected with the valve body, an actuating hydraulic cylinder rotatably connected with the driving connecting seat, a crank arranged on the actuating shaft, a counterweight arranged at the end of the crank, a hydraulic rod of the actuating hydraulic cylinder being hingedly connected with the crank, and the crank having an open position extending vertically and a closed position extending horizontally.

[0005] As a further improvement of the design, the cylinder head of the actuating hydraulic cylinder is rotatably connected with the driving connecting seat.

[0006] As a further improvement of the design, support plates are arranged on the driving connecting seat on both sides of the actuating hydraulic cylinder, a connecting plate is detachably connected between the ends of the support plates, and a driving rotating shaft is rotatably connected with the connecting plate and the driving connecting seat on the cylinder of the actuating hydraulic cylinder.

[0007] As a further improvement of the design, the driving connecting seat extends obliquely downward, the crank extends forward upward during rotation, and the connecting point of the hydraulic rod of the actuating hydraulic cylinder and the crank is located between the counterweight and the rotating axis of the crank.

[0008] As a further improvement of the design, the counterweight is a stacked counterweight plate, the crank is provided with a counterweight connecting bolt, the counterweight plate is provided with a mounting gap on the edge of the opposite side, the counterweight connecting bolt penetrates the mounting gap, the counterweight connecting bolt is provided with a counterweight nut, and the counterweight plate is clamped between the counterweight nut and the crank.

[0009] As a further improvement of the design, the valve body is provided with an execution shaft seat, the drive connecting seat is connected to the end of the execution shaft seat, the crank is provided with a stabilizing sleeve at one end connected with the execution shaft, the stabilizing sleeve is coaxial with the execution shaft and is rotationally connected with the drive connecting seat, and the counterweight plates are respectively located on both sides of the drive connecting seat.

[0010] The utility model has the advantages that the utility model is connected with the same crank through the hydraulic cylinder and the counterweight, realizes the opening and closing of the valve, and has the advantages of simple and compact structure and easy maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model will be further described below in combination with the drawings and embodiments.

[0012] Figure 1 It is the overall three-dimensional structure schematic diagram of the utility model.

[0013] Figure 2 It is the overall cross section schematic diagram of the utility model.

[0014] Figure 3 It is the crank position schematic diagram when the utility model is opened.

[0015] Figure 4 It is the crank position schematic diagram when the utility model is closed.

[0016] In the drawing, 1. valve body, 2. valve plate, 3. outer sealing ring, 4. execution shaft seat, 5. crank, 6. counterweight, 7. counterweight connecting bolt, 8. mounting gap, 9. connecting plate, 10. execution hydraulic cylinder, 11. drive rotating shaft, 12. support plate, 13. drive connecting seat, 14. valve chamber, 15. stabilizing sleeve, 16. valve inner sealing ring, 17. rotating shaft, 18. execution shaft, 19. counterweight nut. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with the drawings and embodiments. The illustrative embodiments and the description are only used to explain the utility model, but not as the limitation of the utility model.

[0018] Embodiment: a heavy hammer type top rod electro-hydraulic valve, comprising a valve body 1, a valve plate 2 arranged in the valve body 1, the valve body 1 is provided with a valve chamber 14, the valve plate 2 is rotationally connected with the valve body 1, the valve plate 2 is located in the valve chamber 14, the valve body 1 is provided with a valve outer sealing ring 3, the valve plate 2 is provided with a valve inner sealing ring 16, one side of the valve plate 2 is provided with a rotating shaft 17 rotationally connected with the valve body 1, the other side of the valve plate 2 is provided with a rotating execution shaft 18 rotationally connected with the valve body 1, the valve body 1 is fixedly connected with a driving connecting seat 13, the driving connecting seat 13 is rotationally connected with an execution hydraulic cylinder 10, the execution shaft 18 is provided with a crank 5, the crank 5 is provided with a counterweight 6 at the end, the hydraulic rod of the execution hydraulic cylinder 10 is hinged with the crank 5, the crank 5 has a vertical extension opening position and a horizontal extension closing position.

[0019] By connecting the hydraulic cylinder and the counterweight 6 to the same crank 5, the opening and closing of the valve are realized, the structure is simple and compact, easy to maintain, has a larger closing force on the valve, and reduces the size of the execution hydraulic cylinder 10.

[0020] Please refer to Figure 1 , the cylinder head of the execution hydraulic cylinder 10 is rotationally connected with the driving connecting seat 13, reducing the bending and torsional force between the execution hydraulic cylinder 10 and the driving connecting seat 13, effectively protecting the execution hydraulic cylinder 10, and the structure is more compact.

[0021] In order to further improve the stability of the connection between the execution hydraulic cylinder 10 and the driving connecting seat 13, the driving connecting seat 13 on both sides of the execution hydraulic cylinder 10 is provided with a support plate 12, the ends of the support plate 12 are detachably connected with a connecting plate 9, and the cylinder body of the execution hydraulic cylinder 10 is provided with a driving rotating shaft 11 rotationally connected with the connecting plate 9 and the driving connecting seat 13.

[0022] In order to further simplify the structure and improve the energy efficiency of the execution hydraulic cylinder 10, the driving connecting seat 13 extends obliquely forward and downward, the crank 5 extends forward and upward during rotation, and the connection point of the hydraulic rod of the execution hydraulic cylinder 10 and the crank 5 is located between the counterweight 6 and the rotation axis of the crank 5.

[0023] In order to facilitate the installation and adjustment of the counterweight 6, the counterweight 6 is a stacked counterweight plate, the crank 5 is provided with a counterweight connecting bolt 7, the edge of the counterweight plate on one side is provided with a mounting gap 8, the counterweight connecting bolt 7 penetrates the mounting gap 8, the counterweight connecting bolt 7 is provided with a counterweight nut 19, and the counterweight plate is clamped between the counterweight nut 19 and the crank 5. When adjusting, only the counterweight nut 19 needs to be loosened.

[0024] In order to offset the bending force of the crank 5 at the rotating position, reduce the wear of the rotating part, the valve body 1 is provided with an actuator shaft 18 seat 4, the drive connection seat 13 is connected to the end of the actuator shaft 18 seat 4, the crank 5 is provided with a stabilizing sleeve 15 at one end connected with the actuator shaft 18, the stabilizing sleeve 15 is coaxial with the actuator shaft 18 and is rotationally connected with the drive connection seat 13, and the counterweight plates are respectively located on both sides of the drive connection seat 13.

[0025] When opening, please refer to Figure 3 , the hydraulic rod of the hydraulic cylinder 10 is extended, the crank 5 is rotated upward to the vertical position, and the counterweight 6 is lifted; when closing, please refer to Figure 4 , the hydraulic rod of the hydraulic cylinder 10 is retracted, and the crank 5 is rotated downward to the horizontal position under the joint action of the hydraulic cylinder 10 and the counterweight 6.

[0026] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by utilizing the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A counterweight-type electro-hydraulic valve, comprising a valve body and a valve plate disposed within the valve body, the valve body having a valve chamber, the valve plate being rotatably connected to the valve body and located within the valve chamber, an outer valve sealing ring being disposed within the valve body, an inner valve sealing ring being disposed around the outer ring of the valve plate, a rotating shaft rotatably connected to the valve body being disposed on one side of the valve plate, and an actuating shaft rotatably connected to the valve body being disposed on the other side of the valve plate, characterized in that... The valve body is externally fixedly connected to a drive connection seat, and an actuating hydraulic cylinder is rotatably connected to the drive connection seat. A crank is provided on the actuating shaft, and a counterweight is provided at the end of the crank. The hydraulic rod of the actuating hydraulic cylinder is hinged to the crank. The crank has a vertically extending open position and a horizontally extending closed position.

2. The counterweight-type push rod electro-hydraulic valve according to claim 1, characterized in that, The cylinder head of the hydraulic cylinder is rotatably connected to the drive connecting seat.

3. The counterweight-type push rod electro-hydraulic valve according to claim 2, characterized in that, The hydraulic cylinder is provided with a support plate on the drive connecting seat on both sides, and a connecting plate is detachably connected between the ends of the support plate. The cylinder body of the hydraulic cylinder is provided with a drive shaft that is rotatably connected to the connecting plate and the drive connecting seat.

4. The counterweight-type push rod electro-hydraulic valve according to claim 1, characterized in that, The drive connecting seat extends obliquely forward and downward, the crank extends forward and upward during rotation, and the connection point between the hydraulic rod of the actuator hydraulic cylinder and the crank is located between the counterweight and the crank rotation axis.

5. A counterweight-type push rod electro-hydraulic valve according to claim 1, characterized in that, The counterweight is a stacked counterweight plate. The crank is provided with a counterweight connecting bolt. The edge of the counterweight plate on the opposite side is provided with an installation notch. The counterweight connecting bolt passes through the installation notch. The counterweight connecting bolt is provided with a counterweight nut. The counterweight plate is sandwiched between the counterweight nut and the crank.

6. A counterweight-type push rod electro-hydraulic valve according to claim 5, characterized in that, The valve body is provided with an actuator shaft seat, the drive connection seat is connected to the end of the actuator shaft seat, the crank is connected to the actuator shaft end with a stabilizing sleeve, the stabilizing sleeve is coaxial with the actuator shaft and rotatably connected to the drive connection seat, and the counterweight plates are respectively located on both sides of the drive connection seat.

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