CN214404870U - Electric actuating mechanism for valve - Google Patents

Abstract

The utility model relates to the technical field of valves, specifically be a valve electric actuator, including valve and shell, the shell is installed on the valve, be equipped with the thread bush in the shell, first gear is connected to the thread bush, shell inner wall installation motor mount pad, motor mount pad installation driving motor, driving motor connects the pivot, the shell is equipped with the recess, the recess is equipped with the spout, spout installation piece, the bearing is connected to installation piece bottom, installation connecting rod in the bearing, the connecting rod outer wall is equipped with the second gear, the connecting rod is equipped with the draw-in groove, pivot top integrated into one piece have with the fixture block of draw-in groove looks adaptation, installation piece outer wall connection round bar, round bar one end extends to the recess outside and connects the arm-tie. The utility model discloses an inseparable combination of each mechanism realizes that the electric control and the manual control of valve combine together, and the second gear can take out to lubricate it or change simultaneously, has improved gear drive's efficiency, has prolonged electric actuator's life.

Description

Electric actuating mechanism for valve

Technical Field

The utility model relates to the technical field of valves, specifically a valve electric actuator.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like.

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems.

The electric actuating mechanism of the existing valve mostly drives a plurality of gears through a motor to realize transmission, drives a valve rod in the valve to rotate, realizes the effect of opening and closing the valve, but the gears in the electric actuating mechanism work for a long time, and the surface is not lubricated, so that the transmission efficiency between the gears becomes low, and meanwhile, the electric actuating mechanism can not close the valve once the phenomena such as power failure occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve electric actuator to solve the long-time work of the gear of the electric actuator who provides in the above-mentioned background art, not lubricated, make gear drive inefficiency, electric actuator appears the problem that phenomenon such as having a power failure can't close the valve simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: an electric actuating mechanism of a valve comprises the valve and a shell, wherein the shell is arranged on the valve, a thread sleeve is arranged at the middle position inside the shell, a first gear is fixedly connected to the outer wall of the thread sleeve, a motor mounting seat is arranged on the inner wall of one side inside the shell, a driving motor is arranged on the motor mounting seat, the output end of the driving motor is coaxially connected with a rotating shaft, a groove extending to the inside of the shell is formed in one side of the shell, a chute is formed in the upper end of the groove, a mounting block is slidably arranged in the chute, a bearing is fixedly connected to the bottom of the mounting block, a connecting rod is arranged in the bearing, a second gear meshed with the first gear is arranged on the outer wall of the connecting rod, a clamping groove is formed in the bottom end of the connecting rod, a clamping block matched with the clamping groove is integrally formed at the top end of the rotating shaft, a round rod used for moving the mounting block is connected to the outer wall of one side of the mounting block, one end of the round rod extends to the outside of the groove and is coaxially connected with a pulling plate.

Optionally, the mounting block is internally provided with two springs, one end, opposite to the springs, of each spring is connected with a limiting block for limiting the position of the mounting block, the inner wall of each groove is provided with a limiting groove matched with the limiting block, the limiting block is close to one side outer wall of the limiting groove and provided with a circular groove, the shell is provided with through holes on two opposite side outer walls, the through holes are internally provided with butt rods in an inserted mode, one ends of the butt rods extend into the limiting grooves, and one end portions, extending into the limiting grooves, of the butt rods are inserted into the circular grooves.

Optionally, the upper end fixedly connected with valve rod of thread bush, the manual rotation handle is installed on the top of valve rod, the screw rod is installed to the thread bush internal thread, the bottom coaxial coupling of screw rod has the slide bar, the bottom fixedly connected with valve plug of slide bar.

Optionally, a mounting box for sliding to take out the second gear is mounted on the outer wall of one side of the shell, a pull groove for the pull plate to slide back and forth is formed in the top of the mounting box, and a cover plate is inserted into the top of the mounting box.

Compared with the prior art, the utility model provides a valve electric actuator possesses following beneficial effect:

the utility model discloses an inseparable combination of each mechanism has realized combining together the electric control and the manual control of valve, and the gear that the motor drove simultaneously can take out lubricate or change its surface, has improved gear drive's efficiency, has prolonged electric actuator's life, has that the function is complete, dependable performance, use and maintain convenient characteristics.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a cross-sectional view of the structure of FIG. 1;

FIG. 3 is a partial cross-sectional view of the structure of FIG. 1;

fig. 4 is a schematic view of the structure of the connection rod and the rotation shaft of the present invention.

In the figure: 1. a housing; 101. a valve; 102. manually rotating the handle; 103. mounting a box; 104. a cover plate; 105. a butting rod; 106. a chute; 107. a valve stem; 108. a threaded sleeve; 109. a screw; 110. a slide bar; 111. a valve plug; 112. a limiting groove; 113. a through hole; 114. a first gear; 115. a groove; 116. groove drawing; 2. a drive motor; 201. a rotating shaft; 202. a second gear; 203. a clamping block; 204. a motor mounting seat; 3. mounting blocks; 301. a card slot; 302. a connecting rod; 303. a limiting block; 304. a bearing; 305. pulling a plate; 306. a round bar; 307. a spring; 308. a circular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1-4, the present invention provides an electric actuator for a valve, including a valve 101 and a housing 1, the housing 1 is installed on the valve 101, a threaded sleeve 108 is installed at a central position inside the housing 1, a first gear 114 is fixedly connected to an outer wall of the threaded sleeve 108, a motor mounting seat 204 is installed on an inner wall of one side inside the housing 1, a driving motor 2 is installed on the motor mounting seat 204, a rotating shaft 201 is coaxially connected to an output end of the driving motor 2, a groove 115 extending into the housing 1 is formed on one side of the housing 1, a sliding groove 106 is formed in an upper end of the groove 115, an installation block 3 is slidably installed in the sliding groove 106, a bearing 304 is fixedly connected to a bottom of the installation block 3, a connecting rod 302 is installed in the bearing 304, a second gear 202 engaged with the first gear 114 is installed on an outer wall of the connecting rod 302, a slot 301 is formed in a bottom end of the connecting rod 302, top integrated into one piece of pivot 201 has the fixture block 203 with draw-in groove 301 looks adaptation, one side outer wall connection of installation piece 3 has the round bar 306 that is used for removing installation piece 3, the one end of round bar 306 extends to the outside and the coaxial coupling of recess 115 has arm-tie 305, through artifical pulling arm-tie 305, drive installation piece 3 and slide in recess 115, installation piece 3 slides to the tip of recess 115 in shell 1, draw-in groove 301 of the connecting rod 302 of installation piece 3 bottom just with the mutual joint of fixture block 203 on motor shaft 201 top, driving motor 2 rotates the second gear 202 that can drive connecting rod 302 this moment and rotates, and then drive engaged with first gear 114 through with second gear 202, driving motor 2 is just reversing motor, and then realize the switch of valve 101. Two springs 307 are arranged in the mounting block 3, the opposite ends of the springs 307 are connected with limit blocks 303 for limiting the positions of the mounting block 3, the inner wall of each groove 115 is provided with a limit groove 112 matched with the limit block 303, the outer wall of one side, close to the limit groove 112, of each limit block 303 is provided with a circular groove 308, the outer walls of two opposite sides of the shell 1 are provided with through holes 113, abutting rods 105 are inserted into the through holes 113, one end of each abutting rod 105 extends into the limit groove 112, the end part, extending into the limit groove 112, of each abutting rod 105 is inserted into the circular groove 308, the limit blocks 303 are arranged, when the mounting block 3 moves to the designated position of the groove 115, the abutting rods 105 on the outer wall of the shell 1 can be clamped in the limit grooves 112 through the limit blocks 303, the position of the mounting block 3 can be fixed, the motor 2 can drive the second gear 202 to rotate conveniently, and when the second gear 202 needs to be taken out, the abutting rods 105 on the outer wall of the shell 1 can be pressed, and then the limiting block 303 is pressed, the limiting block 303 is separated from the limiting groove 112 through the elastic action of the spring 307, and the pulling plate 305 is pulled outwards to move the mounting block 3 to the outside of the housing 1.

Referring to fig. 2-4, a valve rod 107 is fixedly connected to an upper end of a threaded sleeve 108, a manual rotation handle 102 is mounted at a top end of the valve rod 107, a screw 109 is mounted in the threaded sleeve 108, a sliding rod 110 is coaxially connected to a bottom end of the screw 109, and a valve plug 111 is fixedly connected to a bottom end of the sliding rod 110. The outer wall of one side on the shell 1 is provided with a mounting box 103 for taking out the second gear 202 in a sliding manner, the top of the mounting box 103 is provided with a pull groove 116 for the pull plate 305 to slide back and forth, and the top of the mounting box 103 is inserted with a cover plate 104.

The working principle is as follows: the utility model discloses when using, through artifical pulling arm-tie 305, it slides in recess 115 to drive installation piece 3, installation piece 3 slides to the tip of recess 115 in shell 1, draw-in groove 301 of the connecting rod 302 of 3 bottoms of installation piece just with the mutual joint of fixture block 203 on motor shaft 201 top, driving motor 2 rotates the second gear 202 that can drive connecting rod 302 this moment and rotates, and then through driving engaged with first gear 114 with second gear 202, driving motor 2 is just reversing motor, and then realize valve 101's switch. Set up stopper 303, can move to recess 115 assigned position when installing piece 3, can establish in spacing groove 112 through stopper 303 card, and then can live the rigidity of installing piece 3, it is rotatory to be convenient for motor 2 to drive second gear 202, when needing to take out second gear 202, press the butt rod 105 on the shell 1 outer wall, and then make stopper 303 receive pressure, through the elastic reaction of spring 307, make stopper 303 break away from spacing groove 112, outwards stimulate arm-tie 305 again, it can to install the outside that piece 3 removed to shell 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. An electric actuator of a valve is characterized in that: including valve (101) and shell (1), install on valve (101) shell (1), the position placed in the middle of shell (1) inside is equipped with thread bush (108), the outer wall fixedly connected with first gear (114) of thread bush (108), motor mount pad (204) are installed to one side inner wall of shell (1) inside, install driving motor (2) on motor mount pad (204), the output coaxial coupling of driving motor (2) has pivot (201), recess (115) that extend to shell (1) inside are seted up to one side on shell (1), spout (106) have been seted up to the upper end of recess (115), slidable mounting has installation piece (3) in spout (106), the bottom fixedly connected with bearing (304) of installation piece (3), install connecting rod (302) in bearing (304), the outer wall of connecting rod (302) is equipped with second gear (202) with first gear (114) engaged with, draw-in groove (301) have been seted up to the bottom of connecting rod (302), the top integrated into one piece of pivot (201) has fixture block (203) with draw-in groove (301) looks adaptation, one side outer wall connection of installation piece (3) has round bar (306) that are used for removing installation piece (3), the one end of round bar (306) extends to the outside and the coaxial coupling of recess (115) has arm-tie (305).

2. An electric actuator for a valve as defined in claim 1, wherein: the mounting structure is characterized in that two springs (307) are arranged in the mounting block (3), one ends, opposite to the springs (307), are connected with limit blocks (303) used for limiting the positions of the mounting block (3), limit grooves (112) matched with the limit blocks (303) are formed in the inner walls of the grooves (115), circular grooves (308) are formed in the outer walls, close to the limit grooves (112), of the limit blocks (303), through holes (113) are formed in the outer walls, opposite to the outer walls, of the two sides of the shell (1), abutting rods (105) are inserted into the through holes (113), one ends of the abutting rods (105) extend into the limit grooves (112), and one end portions, extending into the limit grooves (112), of the abutting rods (105) are inserted into the circular grooves (308).

3. An electric actuator for a valve as defined in claim 1, wherein: the upper end fixedly connected with valve rod (107) of thread bush (108), manual rotation handle (102) are installed on the top of valve rod (107), screw rod (109) are installed to thread bush (108) internal thread, the bottom coaxial coupling of screw rod (109) has slide bar (110), the bottom fixedly connected with valve plug (111) of slide bar (110).

4. An electric actuator for a valve as defined in claim 1, wherein: the outer wall of one side on the shell (1) is provided with a mounting box (103) used for taking out the second gear (202) in a sliding mode, the top of the mounting box (103) is provided with a pull groove (116) for the pull plate (305) to slide back and forth, and a cover plate (104) is inserted into the top of the mounting box (103).

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