CN217583346U

CN217583346U - Actuator

Info

Publication number: CN217583346U
Application number: CN202221105526.2U
Authority: CN
Inventors: 乔洪生
Original assignee: Ningbo Junlei Instrument Technology Co ltd
Current assignee: Ningbo Junlei Instrument Technology Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-10-14
Anticipated expiration: 2032-05-10

Abstract

The utility model discloses an actuator, be in including executor casing and setting executor subassembly in the executor casing, the executor subassembly includes the base plate, on this base plate fixed setting limit switch, rotates the valve shaft and the motor shaft that set up on the base plate, and the upper end of valve shaft is fixed with the driving lever be provided with highly different and angle spaced first bellying and second bellying on the driving lever, limit switch includes at vertical interval distribution's first limit switch and second limit switch, and first limit switch and second limit switch's height corresponds with the height of first bellying and second bellying. The utility model discloses the executor only need set up two limit switch that pile up can. The installation space that limit switch took has significantly reduced. And the installation is more convenient.

Description

Actuator

Technical Field

The utility model relates to an executor, more specifically relates to the executor that uses in the water gauge.

Background

With the urbanization process of the society and the increase of labor cost, the traditional manual meter reading is slowly replaced by remote meter reading, and furthermore, the valve can be remotely opened and closed according to the use condition of a user, so that the management is convenient. The water meter used here is a valve-controlled water meter, which adopts a water meter module to control a motor actuator, and the motor controls the rotation of a ball valve through a gear set, thereby opening/closing the valve.

The patent application number is "CN201320101747.7", discloses in the utility model patent of "intelligent water gauge plastic gear executor" an executor structure, its be equipped with on the punch holder with fix the limit switch that the epaxial driving lever cooperation of gear wheel was used, wherein limit switch sets up the interval and is provided with two sets ofly, two sets of limit switch set up corotation direction extreme position and the reverse extreme position at the driving lever respectively, its position condition that is used for monitoring and the sector gear that the driving lever is connected. However, the limit switches arranged at intervals between the two sets occupy the installation space inside the actuator, and the installation is also inconvenient.

Based on the above problems, there is a need for improvement of the prior art.

Disclosure of Invention

An object of the utility model is to overcome the defect that exists among the prior art, provide an executor.

The utility model discloses a realize through following technical scheme: an actuator comprises an actuator shell and an actuator assembly arranged in the actuator shell, wherein the actuator assembly comprises a base plate, a limit switch fixedly arranged on the base plate, a valve shaft and a motor shaft, the valve shaft and the motor shaft are rotatably arranged on the base plate, the motor shaft is driven by a driving motor, a driving gear is fixed at one end of the motor shaft, the valve shaft is provided with an end part extending out of the actuator shell, a sector gear is fixed on the valve shaft, and the driving gear and the sector gear are in transmission connection through a gear set;

the upper end of the valve shaft is fixed with a shifting lever, a first protruding portion and a second protruding portion which are different in height and spaced in angle are arranged on the shifting lever, the limit switches comprise a first limit switch and a second limit switch which are distributed longitudinally at intervals, and the heights of the first limit switch and the second limit switch correspond to the heights of the first protruding portion and the second protruding portion.

In the above technical solution, an angle between the first protruding portion and the second protruding portion is 120 ° to 160 °.

In the above technical solution, an interval angle between the first protruding portion and the second protruding portion is 140 °.

In the above technical solution, the base plate is provided with a first blocking portion and a second blocking portion in a protruding manner, and the first blocking portion and the second blocking portion are used for limiting a rotation angle of the sector gear.

Among the above-mentioned technical scheme, the main casing body includes the upper end opening, is provided with on above-mentioned opening to be used for with opening confined upper cover, is equipped with spacing post in the lower terminal surface epirelief of upper cover, limit switch upper end be provided with spacing hole of spacing post fixed fit.

The utility model discloses following beneficial effect has: the utility model discloses the executor only need set up two limit switch that pile up can. The installation space that limit switch took has significantly reduced. And the installation is more convenient.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure in the bottom view direction of the present invention.

Fig. 3 is a perspective view of the actuator assembly.

Fig. 4 is a schematic view of the actuator in another direction.

Fig. 5 is a schematic plan view of the actuator.

Fig. 6 is a perspective view of the main housing.

Fig. 7 is a schematic structural view of the shift lever.

Fig. 8 is a schematic perspective view of the upper cover.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 8, an actuator comprises an actuator housing 1 and an actuator assembly 2 disposed in the actuator housing 1, wherein the actuator assembly 2 includes a base plate 20, a limit switch 21 fixedly disposed on the base plate 20, a valve shaft 22 rotatably disposed on the base plate 20, and a motor shaft 23, wherein the motor shaft 23 is driven by a driving motor 24, a driving gear 25 is fixed at one end of the motor shaft 23, the valve shaft 22 has an end portion 100 protruding from the actuator housing, and a sector gear 26 is fixed on the valve shaft 22, the driving gear 25 and the sector gear 26 are in transmission connection through a gear set (in the prior art, not shown in the drawings), a lever 3 is fixed at an upper end portion of the valve shaft 22, a first protruding portion 31 and a second protruding portion 32 having different heights and angularly spaced are disposed on the lever 3, the limit switch 21 includes a first limit switch 211 and a second limit switch 212 stacked in a longitudinal direction, and the heights of the first limit switch 211 and the second limit switch 212 correspond to the heights of the first protruding portion 31 and the second protruding portion 32.

The structure is matched with two groups of first limit switches 211 and second limit switches 212 arranged on the limit switch 21 through the first protruding part 31 and the second protruding part 32 which are arranged on the shift lever 3 and have different heights and are arranged at intervals; only two stacked limit switches need to be arranged. The installation space that limit switch took has significantly reduced. And the installation is more convenient.

Wherein the first and

second protrusions

31 and 32 are spaced apart by an angle R of 120 ° to 160 °. Most preferably, the first and

second protrusions

31 and 32 are spaced apart by an angle of 140 °.

The base plate is provided with a first blocking portion 101 and a second blocking portion 102 in a protruding manner, and the first blocking portion 101 and the second blocking portion 102 are used for limiting the rotation angle of the sector gear.

Specifically, actuator housing 1 includes main casing body 10 that has the inside appearance chamber, and main casing body 10 includes the upper end opening, is provided with on above-mentioned opening to be used for with opening confined upper cover 11, specifically, is provided with first step seat 101 and second step seat 102 on main casing body 10's inner wall, upper cover 11 erects on first step seat 101, and the edge of upper cover 11 is provided with a protruding muscle 110 by interior position, protruding muscle 110 with be formed with channel 111 between the main casing body 10. A plurality of spaced notch grooves 112 are provided on one side of the upper cover 11, and the notch ends of the notch grooves 112 are pressed against the inner wall of the main housing 10, so that the notch grooves 112 form a wire passing hole for passing a wire. And glue can be injected on the channel 111 to further seal the actuator shell 1 and prevent liquid from leaking to components inside the actuator shell.

The base plate 20 is erected on a second step seat 102, end surfaces of one ends of the first stopper portion 101 and the second stopper portion 102 are flush with a sidewall surface of the base plate 20, a positioning groove 103 is arranged on the second step seat 102, and when the base plate 20 and the geothermal step seat 102 are matched, one ends of the first stopper portion 101 and the second stopper portion 102 are respectively located in the positioning groove 103 to form positioning.

A circle of guide ring 104 is arranged outside a through hole of the actuator shell, through which the valve shaft 22 penetrates, a plurality of sealing grooves 22a are arranged on the part, located in the guide ring 104, of the valve shaft 22, and sealing elements are arranged in the sealing grooves 22a to improve the sealing property between the valve shaft 22 and the actuator shell.

Further preferably, the lower end surface of the upper cover 11 is convexly provided with a limit post 11a, the upper end of the limit switch 21 is provided with a limit hole fixedly matched with the limit post 11a, that is, the lower end of the limit switch 21 is fixed through the substrate, and then the upper end of the limit switch 21 is simultaneously fixed through the matching of the limit post 11a and the limit hole on the upper end of the limit switch 21, so that the position change of the limit switch 21 when receiving an external force can be effectively prevented.

The main housing 10 and the upper cover 11 are fixed by a set fastener, and the substrate 20 and the main housing 10 are also fixed by a set fastener, in this embodiment, the main housing 10 and the upper cover 11, and the main housing and the substrate 20 may also be fixed by other known fixing methods, which are not described again in this embodiment.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and description of the invention have been provided in the present application for the purpose of illustrating the principles of the invention and is subject to various changes and modifications without departing from the spirit and scope of the invention. All such variations and modifications are intended to be within the scope of the claimed invention.

Claims

1. An executor, includes executor casing (1) and sets up executor subassembly (2) in executor casing (1), executor subassembly (2) include base plate (20), limit switch (21) of fixed setting on this base plate (20), rotate valve axle (22) and motor shaft (23) that set up on base plate (20), wherein motor shaft (23) are driven through driving motor (24), are fixed with driving gear (25) in the one end of motor shaft (23), valve axle (22) have from the tip (100) that stretches out in the executor casing, and be fixed with sector gear (26) on valve axle (22), connect through gear train transmission between driving gear (25) and sector gear (26), its characterized in that:

the upper end of the valve shaft (22) is fixed with a shifting lever (3), a first protruding portion (31) and a second protruding portion (32) which are different in height and spaced in angle are arranged on the shifting lever (3), the limit switch (21) comprises a first limit switch (211) and a second limit switch (212) which are distributed longitudinally at intervals, and the height of the first limit switch (211) and the height of the second limit switch (212) correspond to the height of the first protruding portion (31) and the height of the second protruding portion (32).

2. An actuator as claimed in claim 1, wherein: the first convex part (31) and the second convex part (32) are separated by an angle of 120-160 degrees.

3. An actuator according to claim 2, wherein: the first convex part (31) and the second convex part (32) are separated by an angle of 140 degrees.

4. An actuator according to claim 1, wherein: the base plate is convexly provided with a first stopping part (101) and a second stopping part (102), and the first stopping part (101) and the second stopping part (102) are used for limiting the rotation angle of the sector gear.

5. An actuator according to claim 1, wherein: the main casing body (10) includes the upper end opening, is provided with on above-mentioned opening and is used for with opening confined upper cover (11), is equipped with spacing post (11 a) in the lower terminal surface epirelief of upper cover (11), limit switch (21) upper end be provided with spacing hole of spacing post (11 a) fixed fit.