CN215869086U

CN215869086U - Knob switch of electric actuator

Info

Publication number: CN215869086U
Application number: CN202121656220.1U
Authority: CN
Inventors: 薛洪恩
Original assignee: SHANGHAI HAIWEI INDUSTRY CONTROL CO LTD
Current assignee: SHANGHAI HAIWEI INDUSTRY CONTROL CO LTD
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-02-18
Anticipated expiration: 2031-07-20

Abstract

The application relates to a knob switch of electric actuator, it includes executor casing and installs the hall switch at the inboard top of executor casing, its characterized in that: the outer terminal surface of executor casing is seted up there is the knob groove, and knob inslot rotation is installed the spiral cover, and the spiral cover is one end open-ended lid, is provided with the magnet steel in the spiral cover, and the open end of spiral cover outwards is provided with the spacing ring, and the spacing ring is located the knob inslot, and the limiting plate is installed to the notch in knob groove, and the bottom butt of limiting plate is at the top of spacing ring. This application sets up the spacing ring through the outside at the spiral cover, at the knob inslot set up the limiting plate, utilizes the limiting plate with spacing at the knob inslot, makes the spiral cover take place to rotate at the knob inslot only, prevents that the spiral cover from taking place the axial float at rotatory in-process, has improved the stability of knob switch and executor casing connection, has solved the unstable problem of knob switch installation.

Description

Knob switch of electric actuator

Technical Field

The application relates to the technical field of electric actuators, in particular to a knob switch of an electric actuator.

Background

An electric actuator is a drive device that provides linear or rotational motion, driven by electrical energy and operated under some control signal. Electric actuators use electric power and convert the electric energy into drive action through an electric motor. In order to control the electric actuator, a knob switch for controlling the on/off of the whole circuit of the electric actuator is usually arranged on the electric actuator, and the knob switch is a switch for turning a transmission mechanism by using the rotation of a knob to make or break a movable contact and a stationary contact and realize the circuit switching.

Because the use scene of electric actuator is generally abominable, in order to prevent outside the executor corrosive liquid from flowing into inside the executor through the switch position, the switch of electric actuator uses magnetism knob switch under general condition. Chinese utility model patent that application number is CN201821981802.5 discloses an intelligence electric actuator keeps off position knob, magnetism knob switch includes the pivot, keep off position instruction apron, the baffle, the magnet steel, keep off position knob shell and hall switch, executor shell top is provided with the axle boss, processing has the screw thread blind hole in the axle boss, be provided with the pivot in the screw thread blind hole, the pivot upper end is inlayed and is equipped with the gear and indicates the apron, gear instruction apron closely cooperates with the pivot upper end, gear instruction apron below is equipped with the baffle, be equipped with the guide rail in the baffle, fixed mounting has the magnet steel in the guide rail, control box top inboard is equipped with hall switch. Through the arrangement of the magnetic steel and the Hall switch, the magnetic steel forms a permanent magnetic field, and the permanent magnetic field is used for inducing and switching on the Hall switch to realize the local, remote and stop function control of the actuator gear knob and the adjustability of the actuator gear knob.

Aiming at the related technologies, the inventor finds that because the gear indicating cover plate is only connected with the shell of the electric actuator through the shaft pin, the knob switch can generate axial movement in the using process, so that the shaft pin can generate looseness in the threaded blind hole after the knob is used for a period of time, the knob switch is easy to fall off from the shell of the actuator, and the problem of instable knob switch installation exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of instable installation of the knob switch, the application provides the knob switch of the electric actuator.

The application provides an electric actuator's knob switch adopts following technical scheme:

the utility model provides an electric actuator's knob switch, includes executor casing and installs the hall switch at the inboard top of executor casing which characterized in that: the outer terminal surface of executor casing is seted up there is the knob groove, knob inslot rotation installs the spiral cover, the spiral cover is one end open-ended lid, be provided with the magnet steel in the spiral cover, the open end of spiral cover outwards is provided with the spacing ring, the spacing ring is located the knob inslot, the limiting plate is installed to the notch in knob groove, the bottom butt of limiting plate is in the top of spacing ring.

By adopting the technical scheme, when the knob switch is installed, the rotary cover is installed in the knob groove, then the limiting plate is fixedly connected to the actuator shell, and the limiting ring fixedly connected with the rotary cover is limited. This application sets up the spacing ring through the outside at the spiral cover, at the knob inslot set up the limiting plate, utilizes the limiting plate with spacing at the knob inslot, makes the spiral cover take place to rotate at the knob inslot only, prevents that the spiral cover from taking place the axial float at rotatory in-process, has improved the stability of knob switch and executor casing connection, has solved the unstable problem of knob switch installation.

Optionally, a support spring is arranged inside the screw cap, one end of the support spring abuts against the end face of the screw cap, and the other end of the support spring abuts against the outer wall of the actuator housing.

Through adopting above-mentioned technical scheme, utilize supporting spring to support spiral cover and executor casing, make the spacing ring butt all the time on the limiting plate, reduce the spiral cover and receive external factor influence when needs are fixed and produce pivoted risk, guarantee knob switch job stabilization nature.

Optionally, the limiting ring is close to the end face of the limiting plate is provided with an annular convex edge, the limiting plate is close to the end face of the limiting ring, a convex edge groove is formed in the end face of the limiting ring, and the annular convex edge is rotatably installed in the convex edge groove.

Through adopting above-mentioned technical scheme, because there is the gap between spacing ring and the knob groove, utilize protruding arris groove to carry on spacingly to cyclic annular bead to spacing ring and spiral cover carry on spacingly, weaken the rotatory in-process of spiral cover and rock at the knob inslot, improved the stability of spiral cover at rotatory in-process.

Optionally, a dustproof gasket is arranged between the limiting plate and the screw cap.

Through adopting above-mentioned technical scheme, the dust washer reduces outside dust and debris and gets into the knob inslot along the gap between limiting plate and the spiral cover, and the dust can lead to the spiral cover can't rotate with debris to reduce debris and dust to knob switch's influence.

Optionally, a mounting hole is formed in the limiting plate in a penetrating manner, a mounting screw penetrates through the mounting hole, and the mounting screw penetrates through the mounting hole and is fixedly connected with the actuator shell.

Through adopting above-mentioned technical scheme, use mounting screw with limiting plate fixed mounting on the executor casing, the fixed mode of screwed connection has improved the stability of limiting plate and executor casing installation, has reduced the risk that the limiting plate drops from the casing, has guaranteed the spacing effect of limiting plate to the spacing ring.

Optionally, the mounting holes are provided in plurality and are uniformly arranged on the limiting plate.

Through adopting above-mentioned technical scheme, set up the quantity of mounting hole on the limiting plate into a plurality ofly, effectively improved the stability that limiting plate and executor casing are connected, prevent that the limiting plate from coming off from the knob inslot, the atress that the mounting hole evenly set up messenger's limiting plate is more even, produces the risk that stress concentration phenomenon leads to the limiting plate to become invalid on the reduction limiting plate.

Optionally, the end of the rotary cover away from the opening of the rotary cover is provided with a rotary handle which facilitates rotation of the knob switch.

Through adopting above-mentioned technical scheme, set up rotatory handle on the terminal surface of spiral cover, when the rotary knob switch of rotating, only permit the rotary knob handle can, rotatory handle has improved the convenience that rotary knob switch used, and the person of facilitating the use operates electric actuator's switch.

Optionally, an indication block is formed on a side wall of the screw cap.

Through adopting above-mentioned technical scheme, the operating condition of the more audio-visual reaction electric actuator of the directional position of instruction piece, the person of facilitating the use is to electric actuator operating condition's discernment and judgement, and the person of facilitating the use is more accurate to electric actuator's regulation simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the limiting ring is arranged on the outer side of the rotary cover, the limiting plate is arranged on the notch of the knob groove, and the limiting ring is limited in the knob groove by the limiting plate, so that the rotary cover can only rotate in the knob groove, the rotary cover is prevented from axially moving in the rotating process, the stability of the connection between the rotary switch and the actuator shell is improved, and the problem of unstable installation of the rotary switch is solved;

2. the support spring is arranged in the screw cap, and the screw cap and the actuator shell are supported by the support spring, so that the limit ring is always abutted against the limit plate, the risk that the screw cap is influenced by external factors to rotate when needing to be fixed is reduced, and the working stability of a knob switch is ensured;

3. the end face of the limiting ring close to the limiting plate is provided with the annular convex edge, and the annular convex edge is limited by the convex edge groove, so that the limiting ring and the screw cap are limited, the shaking of the screw cap in the rotary process in the knob groove is weakened, and the stability of the screw cap in the rotary process is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view illustrating a stop collar according to an embodiment of the present disclosure.

Fig. 3 is an exploded view illustrating the assembly relationship of the rotary switch according to the embodiment of the present application.

Description of reference numerals: 1. an actuator housing; 2. a Hall switch; 3. a knob slot; 4. screwing a cover; 5. magnetic steel; 6. a limiting ring; 7. a limiting plate; 8. a support spring; 9. an annular rib; 10. a convex edge groove; 11. a dust-proof gasket; 12. mounting holes; 13. mounting screws; 14. rotating the handle; 15. the block is indicated.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a knob switch of an electric actuator.

Referring to fig. 1 and 2, a rotary switch of an electric actuator includes an actuator housing 1 and a hall switch 2 mounted on the top of the inner side of the actuator housing 1 by using bolts, a rotary cover 4 is provided on the outer end face of the actuator housing 1, and a magnetic steel 5 is mounted in the rotary cover 4 in an embedded manner.

The spiral cover 4 is a cover body with an opening at one end, and the magnetic steel 5 is embedded and installed at the position of the spiral cover 4 close to the opening. The tip that the magnet steel 5 was kept away from to spiral cover 4 is provided with rotatory handle 14, and rotatory handle 14 has improved the convenience that knob switch used, and the person of facilitating the use operates electric actuator's switch. The lateral wall of spiral cover 4 is gone up integrated into one piece has instruction piece 15, instructs piece 15 and makes user's regulation to electric actuator more accurate.

Referring to fig. 2 and 3, a knob groove 3 is formed in the outer end face of the actuator housing 1, a limiting plate 7 is mounted on a notch screw of the knob groove 3, a plurality of mounting holes 12 are formed in the limiting plate 7 in a penetrating manner along the central axis direction of the knob groove 3, mounting screws 13 penetrate through the mounting holes 12, and are connected with the actuator housing 1 through screws, preferably, the number of the mounting holes 12 and the number of the mounting screws 13 are all set to 6, and the mounting holes 7 are evenly arranged. Use a plurality of mounting screws 13 to connect limiting plate 7 and executor, effectively improved the stability that limiting plate 7 and executor casing 1 are connected, mounting hole 12 evenly sets up the atress that makes limiting plate 7 more even, reduces to produce the risk that stress concentration phenomenon leads to limiting plate 7 to become invalid on the limiting plate 7.

The outside integrated into one piece of open end of spiral cover 4 has spacing ring 6, and limiting plate 7 is spacing 6 spacing at knob inslot 3 with spacing ring, makes spacing ring 6 take place to rotate only in knob inslot 3, prevents that spiral cover 4 from taking place the axial float at rotatory in-process, has solved the unstable problem of knob switch installation. The terminal surface integrated into one piece that spacing ring 6 is close to limiting plate 7 has annular bead 9, and limiting plate 7 has been seted up near the terminal surface of spacing ring 6 convex edge groove 10, and annular bead 9 rotates to be installed in convex edge groove 10, utilizes convex edge groove 10 to carry on spacingly to annular bead 9, weakens rocking of the rotatory in-process of spiral cover 4 in knob inslot 3, has improved the stability of spiral cover 4 at rotatory in-process.

The internally mounted of spiral cover 4 has supporting spring 8, and supporting spring 8's one end butt is on the terminal surface of spiral cover 4, and the other end butt is on the outer wall of executor casing 1, and supporting spring 8 makes spacing ring 6 and limiting plate 7 be in all the time and supports tight state, prevents that spiral cover 4 from taking place to rotate. A dustproof gasket 11 is arranged at a gap between the limiting plate 7 and the rotary cover 4, the dustproof gasket 11 reduces external dust and sundries from entering the rotary knob groove 3 along the gap between the limiting plate 7 and the rotary cover 4, and the influence of the sundries and the dust on the rotary knob switch is reduced.

The implementation principle of the knob switch of the electric actuator is as follows: when the knob switch is installed, the Hall switch 2 is installed at the top of the inner side of the actuator shell 1 through the bolt, the magnetic steel 5 is installed on the rotary cover 4 in an embedded mode, then the supporting spring 8 is installed at the bottom of the rotary cover 4, the limiting ring 6 is installed in the rotary cover groove 3, the limiting plate 7 is installed at the groove opening of the rotary cover groove 3 through the fixing bolt, the limiting plate 7 limits the limiting ring 6 to prevent the limiting ring from generating axial movement, and the installation effect is guaranteed. At the moment, two ends of the supporting spring 8 are respectively abutted against the screw cap 4 and the actuator shell 1, the limiting ring 6 is abutted against the limiting plate 7 under the action of the supporting spring 8, and the annular convex edge 9 is inserted into the convex edge groove 10.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The knob switch of the electric actuator comprises an actuator shell (1) and a Hall switch (2) arranged at the top of the inner side of the actuator shell (1), and is characterized in that: offer knob groove (3) on the outer terminal surface of executor casing (1), rotary cover (4) are installed to knob groove (3) internal rotation, rotary cover (4) are one end open-ended lid, be provided with magnet steel (5) in rotary cover (4), the open end of rotary cover (4) outwards is provided with spacing ring (6), spacing ring (6) are located in knob groove (3), limiting plate (7) are installed to the notch in knob groove (3), the bottom butt of limiting plate (7) is in the top of spacing ring (6).

2. The rotary switch of an electric actuator according to claim 1, wherein: and a supporting spring (8) is arranged in the screw cap (4), one end of the supporting spring (8) is abutted against the end face of the screw cap (4), and the other end of the supporting spring is abutted against the outer wall of the actuator shell (1).

3. The rotary switch of an electric actuator according to claim 1, wherein: spacing ring (6) are close to the terminal surface of limiting plate (7) is provided with cyclic annular bead (9), limiting plate (7) are close to protruding arris groove (10) have been seted up to the terminal surface of spacing ring (6), install in cyclic annular bead (9) rotation protruding arris groove (10).

4. The rotary switch of an electric actuator according to claim 1, wherein: and a dustproof gasket (11) is arranged between the limiting plate (7) and the screw cap (4).

5. The rotary switch of an electric actuator according to claim 1, wherein: the limiting plate (7) is provided with a mounting hole (12) in a penetrating mode, a mounting screw (13) penetrates through the mounting hole (12), and the mounting screw (13) penetrates through the mounting hole (12) and the actuator shell (1) to be fixedly connected.

6. The rotary switch of an electric actuator according to claim 5, wherein: the mounting holes (12) are arranged in a plurality and are uniformly distributed on the limiting plate (7).

7. The rotary switch of an electric actuator according to claim 1, wherein: the end part of the rotary cover (4) far away from the opening of the rotary cover is provided with a rotary handle (14) which is convenient for rotating the knob switch.

8. The rotary switch of an electric actuator according to claim 1, wherein: an indication block (15) is formed on the side wall of the screw cap (4).