Extension driving device of electric driver

Abstract

The utility model relates to the technical field of extension driving equipment, in particular to an extension driving device of an electric driver, which comprises a driving rod connected to ground driving equipment and a control rod connected to an underground valve, and the bottom end of the driving rod is connected with a transmission rod through a universal joint. The end, away from the driving rod, of the transmission rod extends into the ground and is connected with a power output rod through a universal joint, and the bottom of the power output rod and the top of the control rod are fixedly installed. By means of the driving rod, the universal joint, the transmission rod and the power output rod, power of ground electrically-driven equipment can be transmitted to a control rod of an underground pipeline valve, extended driving of the electric driver is achieved, and the electric driver can be conveniently used in the underground space which is too small and can be used for driving the underground pipeline valve. And meanwhile, the overground electric driving equipment can be better protected, and the situation that the service life of the electric driver is affected by the underground humid environment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of extended drive equipment technology, specifically an extended drive device for an electric drive. Background Technology

[0002] The main function of an electric actuator is to regulate the motor by controlling the operation of the equipment, thereby realizing the conversion of electrical energy into mechanical energy. For example, equipment such as valves can be controlled by electric actuators, making it convenient to remotely and quickly open or close the valves.

[0003] Pipelines in underground pipelines need to be equipped with valves to control water flow when needed. However, in the current technology, the electric actuators on the valves need to be installed underground along with the valves and pipelines. Underground space is limited, making it inconvenient to install electric actuators. In addition, the humid underground environment will affect the service life of the electric actuators. Utility Model Content

[0004] The purpose of this invention is to provide an extended drive device for an electric actuator to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An extended drive device for an electric actuator includes a drive rod connected to a ground drive device and a control rod connected to an underground valve. The bottom end of the drive rod is connected to a transmission rod via a universal joint. The end of the transmission rod away from the drive rod extends into the ground and is connected to a power output rod via a universal joint. The bottom of the power output rod and the top of the control rod are fixedly installed.

[0007] The outer surface of the power output rod is slidably connected to a movable ring, and the bottom of the movable ring is fixedly connected to a protective top cover. A positioning ring is provided on the control rod and below the protective top cover. A sealing gasket that works with the protective top cover is fixedly connected to the top of the positioning ring. A positioning pin arranged in a ring array is fixedly connected to the outer surface of the protective top cover. A positioning slot arranged in a ring array is provided on the positioning ring, and the positioning slot and the positioning pin are compatible.

[0008] Preferably, the bottom of the power output rod is fixedly connected to a first flange, and the top of the control rod is fixedly connected to a second flange. The first flange is provided with a ring array of mounting bolts. The bottom of the mounting bolts passes through the first flange and the second flange and is threadedly connected to a mounting nut. An anti-slip pad is provided above the mounting nut.

[0009] Preferably, a first sealing ring is fixedly connected to the movable ring, and a second sealing ring is fixedly connected to the positioning ring.

[0010] Preferably, a magnetic adsorption ring is fixedly connected to the outer surface of the power output rod, and the magnetic adsorption ring is positioned above the movable ring.

[0011] Preferably, a magnetic contact ring is fixedly connected to the inner surface of the protective top cover, and a contact steel ring that cooperates with the magnetic contact ring is fixedly connected to the top of the positioning ring.

[0012] Preferably, the bottom of the positioning ring is fixedly connected to a fixing lug, and the fixing lug has a fixing hole. The fixing lug is used to install onto the outer shell of the underground valve.

[0013] The beneficial effects of this utility model are:

[0014] This invention, through a drive rod, universal joint, transmission rod, and power output rod, can transmit the power of the ground-based electrically driven equipment to the control rod of the underground pipeline valve, thereby extending the drive of the electric actuator. This is convenient for use when the underground space is too small or inconvenient to install the electric actuator. At the same time, the electric drive equipment on the ground can be better protected, avoiding the impact of the underground humid environment on the service life of the electric actuator.

[0015] This invention protects the mounting connection between the power output rod and the control rod by using a protective top cover and a positioning ring, preventing corrosion at the bolt structure used to install and fix the power output rod and the control rod. This facilitates quick installation and disassembly of the drive structure and the control rod in the future, and will not affect the manual operation of the control rod after the electric drive is damaged. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure of the protective top cover;

[0019] Figure 3 This is a utility model Figure 2 Schematic diagram of the structure at the bottom of the second flange;

[0020] Figure 4 This is a utility model Figure 2 A schematic diagram of the structure at the bottom of the positioning ring.

[0021] The attached figures are labeled as follows:

[0022] 1. Drive rod; 2. Control rod; 3. Transmission rod; 4. Power output rod; 5. Movable ring; 6. Protective top cover; 7. Positioning ring; 8. Sealing gasket; 9. Positioning pin; 10. Positioning slot; 11. First flange; 12. Second flange; 13. Mounting bolt; 14. Mounting nut; 141. Anti-slip pad; 15. First sealing ring; 16. Second sealing ring; 17. Magnetic adsorption ring; 18. Magnetic contact ring; 19. Contact steel ring; 20. Fixing ear; 21. Fixing hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 and Figure 2 An extended drive device for an electric actuator includes a drive rod 1 connected to a ground drive device and a control rod 2 connected to an underground valve. The ground drive device is a motor or other rotary drive device that can drive the drive rod 1 to rotate. The control rod 2 is a component of a valve in the prior art. The rotation of the control rod 2 can control the movement of the valve core, thereby controlling the opening and closing of the valve and controlling the closure and connection in the underground pipeline. The bottom end of the drive rod 1 is connected to a transmission rod 3 through a universal joint. The end of the transmission rod 3 away from the drive rod 1 extends into the ground. There is an opening above the underground location of the valve, allowing the transmission rod 3 to extend into the ground. A power output rod 4 is connected to the transmission rod 4 through a universal joint. The bottom of the power output rod 4 and the top of the control rod 2 are fixedly installed and can rotate together.

[0025] like Figure 2 , Figure 3 and Figure 4 A movable ring 5 is slidably connected to the outer surface of the power output rod 4. A protective top cover 6 is fixedly connected to the bottom of the movable ring 5. A positioning ring 7 is provided on the control rod 2 and below the protective top cover 6. A sealing gasket 8 that works with the protective top cover 6 is fixedly connected to the top of the positioning ring 7. The sealing gasket 8 is located directly below the protective top cover 6. When the protective top cover 6 moves down, its bottom can fit perfectly against the top of the sealing gasket 8.

[0026] The outer surface of the protective top cover 6 is fixedly connected with a positioning pin 9 arranged in a ring. The positioning ring 7 is provided with a positioning slot 10 arranged in a ring. The positioning slot 10 and the positioning pin 9 are adapted to each other, so that the positioning pin 9 can be inserted into the positioning slot 10 when it moves down, and the protective top cover 6 and the positioning ring 7 are connected together by friction.

[0027] like Figure 2 and Figure 3 The bottom of the power output rod 4 is fixedly connected to a first flange 11, and the top of the control rod 2 is fixedly connected to a second flange 12. The first flange 11 is provided with mounting bolts 13 arranged in a ring array. The first flange 11 and the second flange 12 have openings. The bottom of the mounting bolts 13 passes through the first flange 11 and the second flange 12 and is threadedly connected to the mounting nuts 14, so that the first flange 11 and the second flange 12 are installed together, thereby achieving the fixed installation of the bottom of the power output rod 4 and the top of the control rod 2. An anti-slip pad 141 is provided above the mounting nut 14 to prevent the mounting nut 14 from loosening.

[0028] like Figure 2 and Figure 4 A first sealing ring 15 is fixedly connected to the movable ring 5, and a second sealing ring 16 is fixedly connected to the positioning ring 7.

[0029] like Figure 2 and Figure 4 A magnetic adsorption ring 17 is fixedly connected to the outer surface of the power output rod 4. The magnetic adsorption ring 17 is located above the movable ring 5. The magnetic adsorption ring 17 is a magnet, and the movable ring 5 is made of iron. The magnetic adsorption ring 17 can adsorb the movable ring 5.

[0030] like Figure 2 and Figure 4 A magnetic contact ring 18 is fixedly connected to the inner surface of the protective top cover 6. The magnetic contact ring 18 is a magnet. A contact steel ring 19, which is used in conjunction with the magnetic contact ring 18, is fixedly connected to the top of the positioning ring 7. The contact steel ring 19 is made of high carbon steel and can be attracted to the magnetic contact ring 18.

[0031] like Figure 2 and Figure 4 The bottom of the positioning ring 7 is fixedly connected to a fixing lug 20, and a fixing hole 21 is provided on the fixing lug 20. The fixing lug 20 is used to install onto the housing of the underground valve. By passing a bolt through the fixing hole 21, the fixing lug 20 can be installed onto the housing of the underground valve, thereby fixing the positioning ring 7.

[0032] The working principle of the extended drive device for an electric actuator provided by this utility model is as follows:

[0033] When the electric actuator located on the ground drives the drive rod 1 to rotate, the drive rod 1 drives the transmission rod 3 to rotate through the universal joint, the transmission rod 3 drives the power output rod 4 to rotate through the universal joint, and the power output rod 4 drives the valve control rod 2 to rotate, thereby realizing the control of the valve;

[0034] When it is necessary to install or separate the power output rod 4 and the control rod 2, the protective top cover 6 can be moved up and the protective top cover 6 can be attracted to the magnetic adsorption ring 17 through the movable ring 5, so that the positioning pin 9 and the positioning slot 10 are separated. At this time, the mounting bolt 13 can be removed to separate the power output rod 4 and the control rod 2.

[0035] Alternatively, the power output rod 4 and the control rod 2 can be installed together using mounting bolts 13. The protective top cover 6 can be lowered so that the positioning pin 9 can be inserted into the positioning slot 10. The bottom of the protective top cover 6 can fit perfectly above the sealing gasket 8, improving the sealing between the protective top cover 6 and the positioning ring 7. The mounting bolts 13, the first flange 11 and the second flange 12 used to install the power output rod 4 and the control rod 2 are protected between the protective top cover 6 and the positioning ring 7, providing moisture protection for the connection between the power output rod 4 and the control rod 2.

[0036] At the same time, the contact steel ring 19 will also be attracted together with the magnetic contact ring 18, improving the stability of the connection between the protective top cover 6 and the positioning ring 7.

[0037] Compared with related technologies, the extended drive device for an electric actuator provided by this utility model has the following advantages:

[0038] This utility model, through drive rod 1, universal joint, transmission rod 3 and power output rod 4, can transmit the power of the ground-based electrically driven equipment to the control rod 2 of the underground pipeline valve, thereby extending the drive of the electric actuator. This is convenient for use when the underground space is too small and it is inconvenient to install the electric actuator. At the same time, the electric drive equipment on the ground can be better protected, avoiding the impact of the underground humid environment on the service life of the electric actuator.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An extended drive device for an electric actuator, comprising a drive rod (1) connected to a ground drive device and a control rod (2) connected to an underground valve, characterized in that, The bottom end of the drive rod (1) is connected to the transmission rod (3) via a universal joint. The end of the transmission rod (3) away from the drive rod (1) extends into the ground and is connected to the power output rod (4) via a universal joint. The bottom of the power output rod (4) and the top of the control rod (2) are fixedly installed. The outer surface of the power output rod (4) is slidably connected to a movable ring (5), and the bottom of the movable ring (5) is fixedly connected to a protective top cover (6). A positioning ring (7) is provided on the control rod (2) and below the protective top cover (6). A sealing gasket (8) that works with the protective top cover (6) is fixedly connected to the top of the positioning ring (7). A positioning pin (9) arranged in a ring array is fixedly connected to the outer surface of the protective top cover (6). A positioning slot (10) arranged in a ring array is provided on the positioning ring (7). The positioning slot (10) and the positioning pin (9) are compatible.

2. The extended drive device for an electric actuator according to claim 1, characterized in that, The bottom of the power output rod (4) is fixedly connected to a first flange (11), and the top of the control rod (2) is fixedly connected to a second flange (12). The first flange (11) is provided with mounting bolts (13) arranged in a ring array. The bottom of the mounting bolts (13) passes through the first flange (11) and the second flange (12) and is threadedly connected to a mounting nut (14). An anti-slip pad (141) is provided above the mounting nut (14).

3. The extended drive device for an electric actuator according to claim 1, characterized in that, The movable ring (5) is fixedly connected to the first sealing ring (15), and the positioning ring (7) is fixedly connected to the second sealing ring (16).

4. The extended drive device for an electric actuator according to claim 3, characterized in that, A magnetic adsorption ring (17) is fixedly connected to the outer surface of the power output rod (4), and the magnetic adsorption ring (17) is positioned above the movable ring (5).

5. The extended drive device for an electric actuator according to claim 4, characterized in that, The inner surface of the protective top cover (6) is fixedly connected to a magnetic contact ring (18), and the top of the positioning ring (7) is fixedly connected to a contact steel ring (19) that works in conjunction with the magnetic contact ring (18).

6. The extended drive device for an electric actuator according to claim 1, characterized in that, The bottom of the positioning ring (7) is fixedly connected to a fixing ear (20), and a fixing hole (21) is provided on the fixing ear (20). The fixing ear (20) is used to be installed on the outer shell of the underground valve.

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