CN214222173U

CN214222173U - Stroke control mechanism of valve electric device

Info

Publication number: CN214222173U
Application number: CN202022665452.5U
Authority: CN
Inventors: 丁协波; 杨健; 王叶龙
Original assignee: Changzhou Huanuo Automation Equipment Co ltd
Current assignee: Changzhou Huanuo Automation Equipment Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-09-17
Anticipated expiration: 2030-11-17

Abstract

The utility model relates to the technical field of valve electric devices, and discloses a stroke control mechanism of a valve electric device, which comprises a bottom plate and a stroke shaft, the stroke shaft is rotatably arranged in the left side of the bottom plate, the upper end of the stroke shaft is fixedly sleeved with a turntable, a fixed block is fixedly arranged in the middle of the upper surface of the bottom plate, a through groove is arranged in the fixed block, a fixed rod is arranged in the through groove, a limit rod is fixedly sleeved on the rod wall of the fixed rod, the limiting rod is matched with the through groove, the right side of the fixed rod is fixedly provided with a push block, the left end of the fixed rod is fixedly provided with a push plate, a push ring is fixedly arranged on the left side of the push plate, a round pin is fixedly arranged on the upper surface of the turntable, the upper end of round pin extends to the inside of pushing away the ring, the upper surface right side of bottom plate is fixed with two curb plates. The utility model discloses extrusion micro-gap switch that can be stable, the convenience carries out quick convenient change to micro-gap switch.

Description

Stroke control mechanism of valve electric device

Technical Field

The utility model relates to a valve electric actuator technical field especially relates to a valve electric actuator's stroke control mechanism.

Background

The valve electric actuator is a highly electromechanical integrated industrial mechanical device which is matched with a valve for use and controls the opening and closing of the valve. The control mechanism of the valve electric device is a main control component, and the control mechanism has the functions of controlling the terminal position of the valve switch and transmitting signals of the position to a control room in a point contact mode and the like, thereby realizing the automatic control and the centralized program control of the electric valve.

The traditional stroke control mechanism of the valve electric device adopts a cam and mechanical type micro-switch combination mode, the contact area of a cam piece and a micro-switch is small, the debugging difficulty is increased, the precision of transmitting stroke state signals can be influenced, the micro-switch is in a long-term compression state in some occasions, the micro-switch is easy to fail and cannot be connected with a loop to drive the valve, and the micro-switch is fixedly installed through a plurality of screws and is inconvenient to disassemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art valve electric actuator's stroke control mechanism cam piece and micro-gap switch area of contact less, having increaseed the debugging degree of difficulty, still can influence the precision of transmission stroke state signal and inconvenient micro-gap switch to the damage and change the problem, and the stroke control mechanism of a valve electric actuator who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stroke control mechanism of a valve electric device comprises a bottom plate and a stroke shaft, wherein the stroke shaft is rotatably arranged inside the left side of the bottom plate, a turntable is fixedly sleeved at the upper end of the stroke shaft, a fixed block is fixedly arranged in the middle of the upper surface of the bottom plate, a through groove is formed in the fixed block, a fixed rod is arranged inside the through groove, a limiting rod is fixedly sleeved on the rod wall of the fixed rod and matched with the through groove, a push block is fixedly arranged on the right side of the fixed rod, a push plate is fixedly arranged at the left end of the fixed rod, a push ring is fixedly arranged on the left side of the push plate, a round pin is fixedly arranged on the upper surface of the turntable, the upper end of the round pin extends into the push ring, two side plates are fixedly arranged on the right side of the upper surface of the bottom plate, a micro switch is arranged below the inner sides of the two side plates in a propping manner, and a movable arm is fixedly arranged on the left side of the micro switch, the push block is abutted against the movable arm, and a pressing mechanism for fixing the microswitch is arranged on the upper surface of the bottom plate and is positioned on the right side of the microswitch.

Preferably, the pressing mechanism comprises two supporting blocks and connecting rods, the two connecting rods are arranged on the inner sides of the right ends of the corresponding side plates and are rotatably connected with the corresponding side plates through rotating shafts, the supporting blocks are fixedly arranged at one ends of the inner sides of the two connecting rods, the inner sides of the two supporting blocks are respectively abutted against the microswitch, and the two supporting blocks are fixedly connected through threaded rods in a threaded fastening mode.

Preferably, the cross sections of the limiting rod and the through groove are square.

Preferably, the two abutting blocks are made of rubber materials.

Preferably, the push block is arranged in a cylindrical shape.

Preferably, the middle end of the threaded rod is fixedly sleeved with a rotating wheel.

Compared with the prior art, the utility model provides a valve electric actuator's stroke control mechanism possesses following beneficial effect:

1. according to the stroke control mechanism of the valve electric device, the round pin is driven to rotate through the turntable, so that the round pin pushes the push ring, the cylindrical push block moves towards the right side in a straight line manner to push the movable arm, the microswitch can be stably extruded, and the stability of a transmission stroke state signal state is improved.

2. This valve electric actuator's stroke control mechanism makes two support the piece for the separation state through rotating the threaded rod, can rotate two connecting rods to can realize carrying out quick convenient dismantlement to micro-gap switch, thereby the convenience is changed micro-gap switch.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses extrusion micro-gap switch that can be stable, the convenience carries out quick convenient change to micro-gap switch.

Drawings

Fig. 1 is a schematic structural diagram of a stroke control mechanism of a valve electric actuator according to the present invention;

fig. 2 is a schematic perspective view of the supporting block in fig. 1.

In the figure: the device comprises a base plate 1, a microswitch 2, a movable arm 3, a stroke shaft 4, a rotary table 5, a fixed block 6, a fixed rod 7, a limiting rod 8, a push block 9, a push plate 10, a push ring 11, a round pin 12, a side plate 13, a rotating shaft 14, a connecting rod 15, a butting block 16, a threaded rod 17 and a rotating wheel 18.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a stroke control mechanism of a valve electric actuator comprises a bottom plate 1 and a stroke shaft 4, wherein the stroke shaft 4 is rotatably arranged inside the left side of the bottom plate 1, a rotary plate 5 is fixedly sleeved at the upper end of the stroke shaft 4, a fixed block 6 is fixedly arranged in the middle of the upper surface of the bottom plate 1, a through groove is formed inside the fixed block 6, a fixed rod 7 is arranged inside the through groove, a limit rod 8 is fixedly sleeved on the rod wall of the fixed rod 7, the limit rod 8 is matched with the through groove, a push block 9 is fixedly arranged on the right side of the fixed rod 7, a push plate 10 is fixedly arranged at the left end of the fixed rod 7, a push ring 11 is fixedly arranged on the left side of the push plate 10, a round pin 12 is fixedly arranged on the upper surface of the rotary plate 5, the upper end of the round pin 12 extends to the inside of the push ring 11, two side plates 13 are fixedly arranged on the right side of the upper surface of the bottom plate 1, and a microswitch 2 is abutted against the lower inner sides of the two side plates 13, a movable arm 3 is fixedly arranged on the left side of the microswitch 2, a push block 9 is abutted against the movable arm 3, and a pressing mechanism for fixing the microswitch 2 is arranged on the upper surface of the bottom plate 1 and positioned on the right side of the microswitch 2.

The pressing mechanism comprises abutting blocks 16 and connecting rods 15, the two connecting rods 15 are arranged on the inner sides of the right ends of the corresponding side plates 13, the two connecting rods 15 are rotatably connected with the corresponding side plates 13 through rotating shafts 14, the abutting blocks 16 are fixedly arranged at one ends of the inner sides of the two connecting rods 15, the inner sides of the two abutting blocks 16 are abutted against the micro switch 2, and the two abutting blocks 16 are in threaded fastening connection through threaded rods 17.

The cross section of gag lever post 8 and logical groove is square, prevents that gag lever post 8 from rotating.

The two abutting blocks 16 are made of rubber materials, so that the microswitch 2 is prevented from being damaged by pressure.

The push block 9 is arranged in a cylindrical shape, so that the push block 9 is in more stable contact with the microswitch 2.

The middle end of the threaded rod 17 is fixedly sleeved with a rotating wheel 18, so that the threaded rod 17 can be conveniently rotated.

The utility model discloses in, during the use, drive round pin 12 through carousel 5 and rotate, make round pin 12 promote throw-out collar 11, thereby make cylindric ejector pad 9 be the straight line and promote swing arm 3 to the right side removal, thereby extrusion micro-gap switch 2 that can be stable, improve the stability of transmission stroke state signal state, when micro-gap switch 2 damages when needing to be changed, make two support 16 for the separation state through rotating threaded rod 17, can rotate and open two connecting rods 15, make two support 16 and micro-gap switch 2 separation, thereby can realize carrying out quick convenient dismantlement to micro-gap switch 2, thereby the convenience is changed micro-gap switch 2.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The stroke control mechanism of the valve electric device comprises a bottom plate (1) and a stroke shaft (4), and is characterized in that the stroke shaft (4) is rotatably arranged inside the left side of the bottom plate (1), a turntable (5) is fixedly sleeved on the upper end of the stroke shaft (4), a fixed block (6) is fixedly arranged in the middle of the upper surface of the bottom plate (1), a through groove is formed in the fixed block (6), a fixed rod (7) is arranged inside the through groove, a limiting rod (8) is fixedly sleeved on the rod wall of the fixed rod (7), the limiting rod (8) is matched with the through groove, a push block (9) is fixedly arranged on the right side of the fixed rod (7), a push plate (10) is fixedly arranged at the left end of the fixed rod (7), a push ring (11) is fixedly arranged on the left side of the push plate (10), a round pin (12) is fixedly arranged on the upper surface of the turntable (5), the upper end of round pin (12) extends to the inside of pushing away ring (11), the fixed two curb plates (13) that are provided with in upper surface right side of bottom plate (1), two the inboard below counterbalance of curb plate (13) is provided with micro-gap switch (2), the fixed movable arm (3) that are provided with in left side of micro-gap switch (2), ejector pad (9) offsets with movable arm (3), the upper surface of bottom plate (1) and the right side that is located micro-gap switch (2) are provided with fixedly micro-gap switch (2)'s hold-down mechanism.

2. The stroke control mechanism of the electric device of the valve as claimed in claim 1, wherein the pressing mechanism comprises two abutting blocks (16) and two connecting rods (15), the two connecting rods (15) are respectively arranged at the inner sides of the right ends of the corresponding side plates (13), the two connecting rods (15) are respectively rotatably connected with the corresponding side plates (13) through rotating shafts (14), the abutting blocks (16) are respectively fixedly arranged at one ends of the inner sides of the two connecting rods (15), the inner sides of the two abutting blocks (16) are respectively abutted against the micro switch (2), and the two abutting blocks (16) are fixedly connected through threads of threaded rods (17).

3. The stroke control mechanism of an electric device of a valve according to claim 1, characterized in that the cross section of the limiting rod (8) and the cross section of the through groove are both square.

4. The stroke control mechanism of an electric device of a valve as claimed in claim 2, wherein both of the two abutting blocks (16) are made of rubber material.

5. The stroke control mechanism of an electric device of a valve as claimed in claim 1, wherein the push block (9) is disposed in a cylindrical shape.

6. The stroke control mechanism of an electric device of a valve as claimed in claim 2, wherein a runner (18) is fixedly sleeved at the middle end of the threaded rod (17).