Electric hollow valve opener

Abstract

The utility model discloses an electric hollow valve opener which comprises a fixing frame and a valve opening power transmission mechanism, the fixing frame comprises a shell, a first fixing rod and a second fixing rod, the first fixing rod and the second fixing rod are arranged on the two sides of the shell, a cavity is formed in the upper portion of the shell, and the valve opening power transmission mechanism comprises a motor and a speed reducer which are arranged in the cavity. An output shaft of the speed reducer penetrates out of the bottom wall of the cavity and then is connected with a first gear, an annular frame is arranged on the side, away from the cavity, of the bottom of the shell, and a middle hole of the annular frame vertically penetrates through the shell. The valve opening device further comprises a second gear, a through hole is formed in the center of the second gear, the second gear is rotationally connected with the outer wall of the annular frame, the second gear is meshed with the first gear, a detachable valve opening connecting device is arranged at the bottom of the second gear, and the valve opening connecting device can be fixed to a switch component of the valve in the circumferential direction.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, and in particular to an electric hollow valve opener. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow of fluids in a fluid system. It enables or stops the flow of media (liquids, gases, powders) within piping and equipment, and can control their flow. It has functions such as diverting, shutting off, throttling, checking, diverting, or overflowing to relieve pressure. Electric-actuated valves are a common type of valve actuation. This type of actuator is usually called a valve actuator, also known as an electric valve switching tool.

[0003] The electric valve switching tool includes a fixing frame and a valve opening control mechanism. During operation, the fixing frame is held, and the valve opening power transmission mechanism is aligned and clamped with the valve's shaft hole or claw connecting component. Then the valve opening power transmission mechanism is opened to drive the switching component to rotate, thereby realizing the opening and closing of the valve. However, the existing electric valve switching tools have manual or fixed electric actuators. Due to their large size and heavy weight, they cannot be portable and mobile. They can only be opened one-to-one and have limited torque. It may be more laborious to open valves with large resistance. Moreover, the structures of the switching components of different types of valves are different, including handwheel type, handle type, key type, rising stem type, etc. The switching components of the existing electric valve switching tools are all single and fixed, and cannot be adapted according to the type of switching components. Summary of the Invention

[0004] The purpose of the present utility model is to provide an electric hollow valve opener to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: an electric hollow valve opener, comprising a fixing frame and a valve opening power transmission mechanism, the fixing frame comprising a shell and a first fixing rod and a second fixing rod arranged on both sides of the shell, a cavity is opened above the shell, the valve opening power transmission mechanism comprises a motor and a reducer arranged in the cavity, the output shaft of the reducer is connected to a first gear after passing through the bottom wall of the cavity, an annular frame is provided on the side away from the cavity at the bottom of the shell, the center hole of the annular frame passes through the shell up and down; it also includes a second gear, the center of the second gear is provided with a through hole and is rotatably connected to the outer wall of the annular frame, the second gear is meshed with the first gear, and a detachable valve opening connection device is provided at the bottom of the second gear, and the valve opening connection device can be circumferentially fixed to the switching component of the valve.

[0006] By adopting the above technical solution, when the valve opening operation is required, the fixing frame is held in hand, the valve opening connection device is clamped with the switching component of the valve and then fixed circumferentially therewith. If the valve to be opened is a rising stem type valve, the hollow part of the annular frame can be passed through, which increases adaptability and practicality. After the motor is turned on, the reducer drives the first gear to rotate, thereby driving the second gear to rotate. The second gear drives the valve opening connection device to rotate, and drives the switching component to rotate to realize the opening and closing of the valve. The reducer is set to reduce the speed of the motor and increase the output torque, which saves more effort when opening a valve with greater resistance. The valve opening connection device and the second gear are detachable, and different valve opening connection devices can be replaced to adapt to different types of switching components.

[0007] As a further optimization of the present invention, a plurality of threaded holes are provided at the bottom of the second gear, and the valve opening connection device is connected to the second gear by bolts.

[0008] As a further optimization of the present invention, the valve opening connection device is a multi-claw disc or a flange disc or a chuck.

[0009] With the above technical solution, when the valve switch component is a handwheel structure, a multi-claw disc can be used to drive the handwheel to rotate. When the valve switch component is a connecting key structure, a flange can be used to connect and fix it circumferentially. When the valve switch component is a handle structure, a claw disc can be used to clamp and fix it circumferentially.

[0010] As a further optimization of the present invention, a reinforcement strap is provided at the end of the first fixing rod.

[0011] By adopting the above technical solution, the reinforcing strap is fixed to the valve body, so that the valve body can remain stable during the valve opening operation, avoiding the dangerous situation where the valve opener is thrown off and rotated by the reaction force due to excessive reverse torque, thereby improving safety.

[0012] As a further optimization of the present invention, the second fixing rod is provided with a plurality of first adjustment holes at equal intervals along the length direction; it also includes an extension rod, which is provided with a plurality of second adjustment holes at equal intervals along the length direction, and the spacing between the plurality of second adjustment holes is the same as the spacing between the plurality of first adjustment holes.

[0013] By adopting the above technical solution, the extension rod and the second fixing rod can be connected by bolts, so as to adjust different longitudinal lengths and realize the telescopic function, which can be applied to locations with narrow spaces.

[0014] As a further optimization of the present invention, a plurality of mounting holes are provided on the first fixing rod.

[0015] By adopting the above technical solution, the installation hole is provided to install additional power switch components, such as a portable power supply.

[0016] The beneficial effects of the present invention are as follows: when the valve opening operation is required, the fixing frame is held in hand, the valve opening connecting device and the switching component of the valve are clamped and fixed to the circumference thereof; if the valve to be opened is a rising stem type valve, the hollow part of the annular frame can be passed through, thereby increasing adaptability and practicality; after the motor is turned on, the reducer drives the first gear to rotate, thereby driving the second gear to rotate, and the second gear drives the valve opening connecting device to rotate, driving the switching component to rotate to realize the opening and closing of the valve; the reducer is provided to reduce the speed of the motor and increase the output torque, which saves more effort when opening a valve with greater resistance; the valve opening connecting device and the second gear are detachable, and different valve opening connecting devices can be replaced to adapt to different types of switching components. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a multi-claw disk when viewed from above.

[0021] The meaning of the numbers in the figure are: 1. Shell; 11. Cavity; 21. First fixing rod; 211. Mounting hole; 22. Second fixing rod; 221. First adjustment hole; 3. Motor; 4. Reducer; 51. First gear; 52. Second gear; 521. Threaded hole; 6. Ring frame; 7. Reinforcement strap; 8. Extension rod; 82. Second adjustment hole; 9. Multi-claw disk. DETAILED DESCRIPTION

[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0023] See attached Figure 1-4 The embodiment disclosed in the present utility model further provides: an electric hollow valve opener, including a fixing frame and a valve opening power transmission mechanism, the fixing frame including a housing 1 and a first fixing rod 21 and a second fixing rod 22 provided on both sides of the housing 1, the end of the first fixing rod 21 is provided with a reinforcing strap 7, specifically, the reinforcing strap is an iron chain or a binding rope;

[0024] A cavity 11 is defined above the housing 1. The valve opening power transmission mechanism includes a motor 3 and a reducer 4 disposed within the cavity 11. The output shaft of the reducer passes through the bottom wall of the cavity 11 and is connected to a first gear 51. An annular frame 6 is defined at the bottom of the housing, on a side away from the cavity 11. The center hole of the annular frame 6 extends vertically through the housing 1. The mechanism also includes a second gear 52. The center of the second gear 52 is defined by a through hole and is rotatably connected to the outer wall of the annular frame 6. The second gear 52 meshes with the first gear 51.

[0025] A detachable valve opening connection device is provided at the bottom of the second gear 52. The valve opening connection device can be set as a multi-claw disk or a shaft hole flange or a chuck. The valve opening connection device can be circumferentially fixed to the valve switch component (handwheel or shaft). Specifically, a plurality of threaded holes 521 are provided at the bottom of the second gear 52. The valve opening connection device is connected to the second gear 52 by bolts. Specifically, the valve opening connection device is a multi-claw disk 9 or a flange or a chuck, all of which are existing technologies. The multi-claw disk can be a three-claw disk or a five-claw disk, which can be suitable for different handwheels.

[0026] Furthermore, a plurality of mounting holes 211 are provided on the first fixing rod 21 , and the mounting holes 211 can be used to install additional components, such as a portable power supply.

[0027] Furthermore, the second fixing rod 22 is provided with a plurality of first adjustment holes 221 at equal intervals along the length direction; it also includes an extension rod 8, which is provided with a plurality of second adjustment holes 82 at equal intervals along the length direction, and the spacing between the plurality of second adjustment holes 82 is the same as the spacing between the plurality of first adjustment holes 221. The extension rod 8 and the second fixing rod 22 can be connected by bolts to adjust different longitudinal lengths to realize the telescopic function, which can be suitable for locations with narrow space.

[0028] The principle of the present utility model is as follows: when the valve opening operation is required, the fixing frame is held in the hand, the valve opening connecting device is clamped to the switch component of the valve and then fixed to the circumference thereof, and the reinforcing strap 7 is fixed to the valve body, so that the valve body can remain stable during the valve opening operation, avoiding the dangerous situation that the valve opener is thrown off and rotated by the reaction force due to excessive reverse torque, thereby improving safety. If the valve to be opened is a rising stem type, the hollow part of the annular frame 6 can be passed through it, which increases adaptability and practicality. After the motor 3 is turned on, the reducer 4 drives the first gear 51 to rotate, thereby driving the second gear 52 to rotate, and the second gear 52 drives the valve opening connecting device to rotate, driving the switch component to rotate to realize the opening and closing of the valve. The reducer 4 is provided to reduce the speed of the motor 3 and increase the output torque, which is more labor-saving when opening a valve with large resistance;

[0029] The valve opening connection device and the second gear 52 are detachable, and different valve opening connection devices can be replaced to adapt to different types of switch components. When the valve switch component is a handwheel structure, a multi-claw disc can be used to drive the handwheel to rotate. When the valve switch component is a connecting key structure, a flange can be inserted and fixed circumferentially. When the valve switch component is a handle structure, a claw disc can be used to clamp and fix it circumferentially.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. An electric hollow valve opener, comprising a fixing frame and a valve opening power transmission mechanism, characterized in that: The fixing frame includes a shell (1) and a first fixing rod (21) and a second fixing rod (22) arranged on both sides of the shell (1); a cavity (11) is opened above the shell (1); the valve opening power transmission mechanism includes a motor (3) and a reducer (4) arranged in the cavity (11); the output shaft of the reducer passes through the bottom wall of the cavity (11) and is connected to a first gear (51); the bottom of the shell is provided with an annular frame (6) on the side away from the cavity (11); the center hole of the annular frame (6) passes through the shell (1) from top to bottom; and also includes a second gear (52); the center of the second gear (52) is provided with a through hole and is rotatably connected to the outer wall of the annular frame (6); the second gear (52) is meshed with the first gear (51); the bottom of the second gear (52) is provided with a detachable valve opening connection device, and the valve opening connection device can be circumferentially fixed to the switch component of the valve.

2. The electric hollow valve opener according to claim 1, characterized in that: The bottom of the second gear (52) is provided with a plurality of threaded holes (521), and the valve opening connection device is connected to the second gear (52) via bolts.

3. An electric hollow valve opener according to claim 1 or 2, characterized in that: The valve opening connection device is a multi-claw disc (9) or an axial hole flange or a chuck.

4. The electric hollow valve opener according to claim 1, characterized in that: A reinforcing strap piece (7) is provided at the end of the first fixing rod (21).

5. The electric hollow valve opener according to claim 1, characterized in that: The second fixing rod (22) is provided with a plurality of first adjustment holes (221) at equal intervals along the length direction; and further comprises an extension rod (8), wherein the extension rod (8) is provided with a plurality of second adjustment holes (82) at equal intervals along the length direction, and the spacing between the plurality of second adjustment holes (82) is the same as the spacing between the plurality of first adjustment holes (221).

6. An electric hollow valve opener according to claim 1 or 4, characterized in that: The first fixing rod (21) is provided with a plurality of mounting holes (211).

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