CN113833892A

CN113833892A - Manual and electric switching device and electric actuating mechanism

Info

Publication number: CN113833892A
Application number: CN202111246984.8A
Authority: CN
Inventors: 郭刚; 殷允杰; 陈铜静; 罗兵
Original assignee: Jiangsu Aode Intelligent Control Technology Co ltd
Current assignee: Jiangsu Aode Intelligent Control Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2021-12-24
Anticipated expiration: 2041-10-26
Also published as: CN113833892B

Abstract

The invention belongs to the technical field of electric actuating mechanisms, and discloses a manual and electric switching device which comprises an electric actuator and a switching mechanism, wherein the switching mechanism is arranged on the electric actuator and comprises a fixed frame, a hand wheel, a worm shaft and a positioning assembly, the worm shaft is arranged in the electric actuator, the hand wheel is connected to the fixed frame, the positioning assembly is used for connecting the hand wheel and the worm shaft, a movable rod is arranged in a channel, one end of the movable rod is fixedly connected with a sliding block, and the positioning shaft is arranged in a chuck, the switching is efficient and stable, and the using effect is excellent.

Description

Manual and electric switching device and electric actuating mechanism

Technical Field

The invention belongs to the technical field of electric actuating mechanisms, and particularly relates to a manual and electric switching device and an electric actuating mechanism.

Background

The actuator is defined most broadly as a drive device that provides linear or rotary motion using some form of drive power and operating under some form of control signal, the actuator uses liquid, gas, electricity or other power and is converted to drive by a motor, cylinder or other means, the basic actuator is used to drive the valve to a fully open or fully closed position, and in some hazardous situations, the automated actuator device reduces human injury.

All can be equipped with manual electric switching device on the electric actuator on the existing market, can be when electric drive mechanism breaks down or has a power failure through the device, adopt manual mode operation valve switch, in order to ensure the normal operating of equipment, but current manual electric switching device is when the in-service use, be difficult to quick accurate completion location between hand wheel tip and the worm axle and be connected, very easily take place the card and pause and drop, joint strength is poor, thereby lead to valve switch unstability under the manual state, very influence the security, excellent in use effect.

Disclosure of Invention

The invention aims to provide a manual and electric switching device and an electric actuating mechanism, and aims to solve the problems that a hand wheel and a worm shaft are difficult to position quickly and accurately and safety is affected in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a manual and electric switching device comprises an electric actuator and a switching mechanism, wherein the switching mechanism is installed on the electric actuator and comprises a fixing frame, a hand wheel, a worm shaft and a positioning assembly, the worm shaft is installed in the electric actuator, the hand wheel is connected to the fixing frame, and the positioning assembly is used for connecting the hand wheel and the worm shaft; locating component including be fixed in the dop on the hand wheel, set up in the epaxial draw-in groove of worm, set up passageway between dop and hand wheel, connect slider, movable rod, symmetry in the passageway and articulate in jack catch, location axle of slider both sides, set up spout and constant head tank on the jack catch, wherein the movable rod is installed in the passageway, and the one end and the slider fixed connection of movable rod, the other end of movable rod extends to the outside of hand wheel, the location axle is installed in the dop, and spout and location axle sliding connection, the tip in the draw-in groove is seted up to the constant head tank.

Preferably, the device comprises a limiting component; the limiting assembly comprises a limiting frame fixed on the hand wheel, a limiting column, a first spring installed in the limiting frame, a pull rod and a limiting hole formed in the movable rod, wherein the limiting column penetrates through one end of the limiting frame, the pull rod penetrates through the other end of the limiting frame, the limiting column is fixedly connected with the pull rod, and the first spring is sleeved on the outer portion of the pull rod.

Preferably, the reinforcing component; the reinforcing component comprises a groove arranged on the clamping head, a second spring, a cavity groove arranged in the clamping groove and a convex block, wherein the second spring is arranged in the cavity groove, one end of the convex block is fixedly connected with the second spring, and the other end of the convex block is abutted to the groove.

Preferably, the guide assembly; the guide assembly comprises a guide block and a guide groove, wherein the guide block is fixed on the sliding block, the guide groove is formed in the channel, and the sliding block is connected with the channel in a sliding mode.

Preferably, the device further comprises a support component; the supporting component comprises a supporting plate arranged in the fixing frame, a fixing plate connected to the hand wheel and a torsion spring, and the torsion spring is connected with the fixing plate.

Preferably, the inner wall of the limiting hole is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

Preferably, the channel comprises a first cavity and a second cavity, and the aperture of the first cavity is larger than that of the second cavity.

Preferably, a rotating block is installed at one end of the movable rod and is located outside the channel.

Preferably, the outer wall of the bump is smooth, and arc chamfers are arranged at two ends of the inner wall of the groove.

An electric actuator comprises the manual and electric switching device.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, through the matching of the structures such as the movable rod, the sliding block, the channel and the clamping jaws, the two clamping jaws can be outwards opened and clamped in the positioning groove, so that the clamping head can be locked in the clamping groove, the quick positioning connection of the hand wheel and the worm shaft can be realized, the movable rod can be outwards pulled to quickly contact the locking state, the switching is efficient and stable, and the using effect is excellent.

(2) According to the invention, the movable rod can be limited and fixed through the matching of the structures such as the pull rod, the limiting column, the limiting frame and the first spring, so that the movable rod is prevented from moving, the stability of the hand wheel and the worm shaft in a locking or releasing state is greatly enhanced, the operation is simple and convenient, and the safety coefficient is improved.

(3) According to the invention, through the matching of the convex block, the second spring, the cavity groove and the groove, the connection strength between the hand wheel and the worm shaft can be further enhanced, and the chuck can slide out of the groove again during separation, so that the normal use is not influenced, and the use effect of the device is greatly improved.

(4) According to the invention, the guide block and the guide groove are additionally arranged, so that the slide block drives the guide block to stably slide in the guide groove, the stability of the slide block during movement is enhanced, the stability of the clamping jaw during opening and closing is further ensured, the vibration and shaking are reduced, and the control effect is greatly improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the fixing frame according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

in the figure: 1. an electric actuator; 21. a fixing frame; 22. a hand wheel; 23. a worm shaft; 3. a support assembly; 41. clamping a head; 42. a card slot; 43. a channel; 44. a slider; 45. a movable rod; 46. a claw; 47. positioning the shaft; 48. a chute; 49. positioning a groove; 51. a limiting frame; 52. a limiting column; 53. a first spring; 54. a pull rod; 55. a limiting hole; 61. a groove; 62. a second spring; 63. a cavity groove; 64. a bump; 71. a guide block; 72. a guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a manual and electric switching device comprises an electric actuator 1 and a switching mechanism, wherein the switching mechanism is installed on the electric actuator 1 and comprises a fixed frame 21, a hand wheel 22, a worm shaft 23 and a positioning assembly, the worm shaft 23 is installed in the electric actuator 1, the hand wheel 22 is connected to the fixed frame 21, and the positioning assembly is used for connecting the hand wheel 22 and the worm shaft 23; the positioning assembly comprises a chuck 41 fixed on the hand wheel 22, a clamping groove 42 arranged on the worm shaft 23, a channel 43 arranged between the chuck 41 and the hand wheel 22, a sliding block 44 connected in the channel 43, a movable rod 45, clamping jaws 46 symmetrically hinged on two sides of the sliding block 44, a positioning shaft 47, sliding grooves 48 arranged on the clamping jaws 46 and positioning grooves 49, wherein the movable rod 45 is arranged in the channel 43, one end of the movable rod 45 is fixedly connected with the sliding block 44, the other end of the movable rod 45 extends to the outside of the hand wheel 22, the positioning shaft 47 is arranged in the chuck 41, the sliding grooves 48 are in sliding connection with the positioning shaft 47, the positioning grooves 49 are arranged at the end part of the clamping groove 42, the hand wheel 22 is stressed when switching is performed, then the chuck 41 is inserted into the chuck 41, the movable rod 45 is simultaneously pushed, the movable rod 45 drives the sliding block 44 to slide in the channel 43, then the sliding block 44 drives the two clamping jaws 46 to move, and the sliding grooves 48 on the clamping jaws 46 slide along the positioning shaft 47, then two jack catchs 46 are outwards opened and are blocked in the locating slot 49, thus make dop 41 lock and die in draw-in groove 42, and then can realize hand wheel 22 and worm shaft 23's quick positioning connection, and outwards stimulate movable rod 45 and can contact the lock state fast, switch high-efficiently stably, the security when having improved the use greatly.

Furthermore, the device comprises a limiting component; the limiting component comprises a limiting frame 51 fixed on the hand wheel 22, a limiting column 52, a first spring 53 arranged in the limiting frame 51, a pull rod 54 and a limiting hole 55 arranged on the movable rod 45, wherein the position-limiting column 52 penetrates through one end of the position-limiting frame 51, the pull rod 54 penetrates through the other end of the position-limiting frame 51, the position-limiting column 52 is fixedly connected with the pull rod 54, the first spring 53 is sleeved outside the pull rod 54, the position-limiting column 52 can enter the position-limiting frame 51 by pulling the pull rod 54, then the first spring 53 is pressed by the limiting column 52, so that the first spring 53 keeps the power storage state, at the moment, the movable rod 45 can be pushed and pulled, so as to adjust the locking or releasing state between the hand wheel 22 and the worm shaft 23, and after the pull rod 54 is loosened, the limit column 52 can be clamped into the limit hole 55 again, and then can carry out spacing fixed to the movable rod 45, prevent that movable rod 45 from taking place the activity, improved the stability of structure greatly.

Further, a reinforcement assembly; the reinforcing component comprises a groove 61, a second spring 62, a cavity groove 63 and a projection 64, wherein the groove 61 is formed in the clamping head 41, the second spring 62 is arranged in the cavity groove 63, one end of the projection 64 is fixedly connected with the second spring 62, and the other end of the projection 64 is abutted against the groove 61, when the clamping head 41 is inserted into the clamping groove 42, the projection 64 can extrude the second spring 62 and enter the cavity groove 63 under the extrusion of the clamping head 41, after the clamping head 41 stops moving, the clamping head 41 can reset and enter the groove 61 under the elastic action of the second spring 62, so that the connection strength between the hand wheel 22 and the worm shaft 23 can be further enhanced, and the clamping head 41 can slide out of the groove 61 again during separation, so that the normal use is not influenced, and the use effect of the device is greatly improved.

Specifically, a guide assembly; the guide assembly comprises a guide block 71 and a guide groove 72, wherein the guide block 71 is fixed on the sliding block 44, the guide groove 72 is formed in the channel 43, the sliding block 44 is connected with the channel 43 in a sliding mode, the sliding block 44 can drive the guide block 71 to slide stably in the guide groove 72 by additionally arranging the guide block 71 and the guide groove 72, and therefore stability of the sliding block 44 during moving is enhanced, stability of the clamping jaw 46 during opening and closing is guaranteed, vibration swing is reduced, and control effect is greatly improved.

Specifically, the device further comprises a support component; the supporting component comprises a supporting plate arranged in the fixed frame 21, and a fixing plate and a torsion spring which are connected to the hand wheel 22, the torsion spring is connected with the fixing plate, and the hand wheel 22 can be supported and reinforced through the supporting component, so that the stability of the hand wheel 22 during movement is improved.

Specifically, the inner wall of the limiting hole 55 is provided with a rubber pad, the rubber pad has an anti-skid effect, and the outer wall of the rubber pad is provided with an anti-skid groove.

Specifically, the channel 43 includes a first cavity and a second cavity, and the aperture of the first cavity is larger than the aperture of the second cavity.

Specifically, a rotating block is installed at one end of the movable rod 45, the movable rod 45 is conveniently pushed and pulled through the rotating block, and the rotating block is located outside the channel 43.

Specifically, the outer wall of the bump 64 is smooth, and the two ends of the inner wall of the groove 61 are both provided with arc chamfers, so that the bump 64 can conveniently enter and exit the groove 61 through the arc chamfers.

An electric actuating mechanism comprises a manual and electric switching device.

The working principle and the using process of the invention are as follows: when the invention is used, firstly, the hand wheel 22 is stressed, then the chuck 41 is inserted into the chuck 41, meanwhile, the pull rod 54 is pulled to enable the limit column 52 to enter the limit frame 51, then the limit column 52 extrudes the first spring 53 to enable the first spring 53 to keep a power storage state, then the movable rod 45 is pushed, the movable rod 45 drives the slide block 44 to slide in the channel 43, then the slide block 44 drives the two clamping jaws 46 to move, the slide grooves 48 on the clamping jaws 46 slide along the positioning shaft 47, then the two clamping jaws 46 are outwards opened and clamped in the positioning groove 49, so that the chuck 41 is locked in the clamping groove 42, further, the quick and accurate positioning of the hand wheel 22 and the worm shaft 23 can be realized, meanwhile, after the pull rod 54 is loosened, the limit column 52 can be clamped in the limit hole 55 again, further, the movable rod 45 can be limited and fixed, the movable rod 45 is prevented from moving, and the movable rod 45 is pulled outwards to be quickly contacted and locked, switch high-efficient stable, the security when having improved the use greatly, in addition, through addding guide block 71 and guide way 72, can make slider 44 drive guide block 71 and slide in guide way 72, stability when can reinforcing slider 44 removes, and then stability when having guaranteed jack catch 46 and opening and shutting, it rocks to have reduced vibrations, through the lug, the cooperation of second spring 62 and recess, the joint strength between hand wheel 22 and worm axle 23 can be further strengthened, and dop 41 roll-off recess 61 once more during the separation, from not influencing normal use, the result of use of device has been improved greatly.

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

1. A manual/electric switching device, comprising:

the electric actuator comprises an electric actuator (1) and a switching mechanism, wherein the switching mechanism is installed on the electric actuator (1) and comprises a fixed frame (21), a hand wheel (22), a worm shaft (23) and a positioning assembly, the worm shaft (23) is installed in the electric actuator (1), the hand wheel (22) is connected to the fixed frame (21), and the positioning assembly is used for connecting the hand wheel (22) and the worm shaft (23);

the positioning assembly comprises a chuck (41) fixed on a hand wheel (22), a clamping groove (42) arranged on a worm shaft (23), a channel (43) arranged between the chuck (41) and the hand wheel (22), a sliding block (44) connected in the channel (43), a movable rod (45), clamping jaws (46) symmetrically hinged on two sides of the sliding block (44), a positioning shaft (47), sliding grooves (48) arranged on the clamping jaws (46) and a positioning groove (49), wherein the movable rod (45) is arranged in the channel (43), one end of the movable rod (45) is fixedly connected with the sliding block (44), the other end of the movable rod (45) extends to the outside of the hand wheel (22), the positioning shaft (47) is arranged in the chuck (41), and the sliding groove (48) is connected with the positioning shaft (47) in a sliding manner, and the positioning groove (49) is arranged at the end part of the clamping groove (42).

2. A manual and electrical switching apparatus according to claim 1 and further comprising: comprises a limiting component;

the limiting assembly comprises a limiting frame (51) fixed on the hand wheel (22), a limiting column (52), a first spring (53) and a pull rod (54) which are installed in the limiting frame (51), and a limiting hole (55) formed in the movable rod (45), wherein the limiting column (52) penetrates through one end of the limiting frame (51), the pull rod (54) penetrates through the other end of the limiting frame (51), the limiting column (52) is fixedly connected with the pull rod (54), and the first spring (53) is sleeved outside the pull rod (54).

3. A manual and electrical switching apparatus according to claim 1 and further comprising: the reinforcing component;

strengthen the subassembly including offering recess (61), second spring (62) on dop (41), offering cavity groove (63) and lug (64) in draw-in groove (42), wherein second spring (62) are installed in cavity groove (63), the one end and the second spring (62) fixed connection of lug (64), and the other end and the recess (61) of lug (64) are inconsistent.

4. A manual and electrical switching apparatus according to claim 1 and further comprising: the guide assembly;

the guide assembly comprises a guide block (71) and a guide groove (72), wherein the guide block (71) is fixed on the sliding block (44), the guide groove (72) is formed in the channel (43), and the sliding block (44) is in sliding connection with the channel (43).

5. A manual and electrical switching apparatus according to claim 1 and further comprising: the device also comprises a supporting component;

the supporting component comprises a supporting plate arranged in the fixing frame (21), a fixing plate connected to the hand wheel (22) and a torsion spring, and the torsion spring is connected with the fixing plate.

6. A manual and electrical switching apparatus according to claim 2 and further comprising: the inner wall of the limiting hole (55) is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

7. A manual and electrical switching apparatus according to claim 1 and further comprising: the channel (43) comprises a first cavity and a second cavity, and the aperture of the first cavity is larger than the aperture of the second cavity.

8. A manual and electrical switching apparatus according to claim 1 and further comprising: the rotating block is installed at one end of the movable rod (45) and is located outside the channel (43).

9. A manual and electrical switching apparatus according to claim 3 and further comprising: the outer wall of the convex block (64) is smooth, and arc chamfers are arranged at two ends of the inner wall of the groove (61).

10. An electric actuator, characterized in that: a manual-electric switching apparatus comprising any one of claims 1 to 9.