CN205282418U - Operating device of switch - Google Patents

Abstract

An operating mechanism for a switch belongs to the technical field of low-voltage electrical appliances. Including: mounting plate, driven part and driving part, one end of the driven part cooperates with the driving part, and the other end cooperates with the operating handle of the circuit breaker, and the operating handle moves between closing and reclosing positions to realize the closing, Opening and re-buckle; Features: The driven part includes a lever and a push rod and a sliding connection device arranged between the lever and the push rod; the sliding connection device is a pin cavity matching structure, which includes first, second and third container Cavities, and respectively corresponding to the first, second and third shaft pins in the first, second and third cavities, the first, second and third shaft pins can be respectively relative to the first, second and third shaft pins The third cavity moves linearly, and among the three linear motion tracks, at least one linear motion track is parallel to the other two. It solves the failure of switching on and off due to excessive matching clearance and the jamming situation caused by excessive friction, with large operating stroke and small operating force.

Description

A switch operating mechanism

technical field

The utility model belongs to the technical field of low-voltage electrical appliances, in particular to an operating mechanism of a switch.

Background technique

The operating mechanism of the switch is mainly used for the closing and opening operations of the switch body. When there is a problem with the circuit, the opening of the switch body is realized by manual or electric operation. After the circuit fault is eliminated, the closing of the switch body is realized by manual or electric operation. . In the prior art, such as the "automatic transfer switch equipment and its mechanical interlocking transmission device" provided by the Chinese utility model patent authorization announcement number CN201167039Y, it includes: a bottom plate; a driving disc arranged on the bottom plate; The first crank and the second crank arranged symmetrically on the driving disk can be driven by the driving disk to rotate around their respective rotation axes; the first switch and the second switch arranged symmetrically on the bottom plate relative to the driving disk can respectively Closing and opening are performed by rotating the first and second cranks. In the above technical solution (specifically in conjunction with Fig. 4 of this patent document), the tripping slider is embedded in the opening formed on the main body of the first crank and can slide in the opening. The section of the tripping slider is " The two sides of the trip slider are respectively provided with grooves, and the main body of the crank is set in a plate shape, which is embedded in the grooves on both sides of the trip slider. When the trip slider slides relative to the crank body, A surface-to-surface contact is formed between the inner surface of the groove and the crank body. This structure has the following disadvantages: due to the surface-to-surface contact will generate a large surface friction force during the sliding process, in order to reduce friction, a fitting gap is designed between the mating surface of the trip slider and the crank body, and the fitting gap Although it can reduce friction, when the driving part acts on the trip slider, the trip slider will deflect relative to the crank body. When the driving part acts on the trip slider, it will drive the crank body to actuate the switch handle , The effective stroke of the crank body is reduced, resulting in failure of the switch to close and open; and too small a fit gap is likely to cause jamming between the trip slider and the crank body, and the trip slider cannot be reset under the action of the spring force.

In view of the above prior art, it is necessary to reasonably improve the structure of the operating mechanism of the existing switch. For this reason, the applicant has made a beneficial design, and the technical solution to be introduced below is produced under this background.

Contents of the invention

The purpose of this utility model is to provide an operating mechanism of a switch, which reduces the surface friction force during the sliding process through the sliding structure of point-surface contact, so as to solve the failure of closing and opening of the switch caused by excessive matching clearance. And the stuck situation caused by excessive friction, and the operating stroke is large and the operating force is small.

The purpose of this utility model is achieved in this way, an operating mechanism of a switch, including: a mounting plate, a driven part pivotally connected to the mounting plate through a rotary shaft, and a drive member pivotally connected to the mounting plate and driven by a motor to rotate One end of the driven part is matched with the driving part, and the other end of the driven part is matched with the operating handle of the circuit breaker. The operating handle moves between the closing and re-closing positions to realize the closing and opening of the switch. brake, re-buckle; the driven part includes a lever and a push rod and a sliding connection device arranged between the lever and the push rod; the sliding connection device is a pin-cavity matching structure, which includes a first cavity, a second The second cavity and the third cavity, and the first pivot pin, the second pivot pin and the third pivot pin respectively correspondingly accommodated in the first cavity, the second cavity and the third cavity, the first pivot pin The first pivot pin, the second pivot pin and the third pivot pin can move linearly relative to the first cavity, the second cavity and the third cavity respectively. The linear movement track of the first pivot pin and the second pivot pin In the linear motion trajectory of the first pin and the linear motion trajectory of the third shaft pin, at least one linear motion trajectory is parallel to the other two.

In a specific embodiment of the present utility model, the three linear motion trajectories are not on the same straight line.

In another specific embodiment of the present invention, two of the three linear motion trajectories are located on the same straight line, and the other linear motion trajectory is parallel to the above-mentioned straight line.

In yet another specific embodiment of the present utility model, the first pivot pin, the second pivot pin and the third pivot pin are arranged on the push rod, and the first cavity, the second cavity and the first cavity The three chambers are arranged on the lever.

In yet another specific embodiment of the present utility model, the first pivot pin, the second pivot pin and the third pivot pin are arranged on the lever, and the first cavity, the second cavity and the third cavity The cavity is arranged on the push rod.

In a further specific embodiment of the present utility model, the first cavity and the third cavity are respectively arranged on both sides of the second cavity, and two sides facing each other along the length direction are formed in the second cavity. The set action wall 1 and action wall 2 form a front action wall along one side of the length direction in the first cavity, and form a rear action wall along the length direction side of the third cavity; the sliding connection device Also includes a spring to return the push rod.

In yet another specific embodiment of the present utility model, the rotary shaft is located on the straight line where the linear motion track of the second pivot pin is located, and the push rod has front sliding surfaces respectively arranged on both sides of the rotary shaft , the rear sliding surface, and the closing surface and the buckle surface respectively arranged on both sides of the front sliding surface and the rear sliding surface.

In yet another specific embodiment of the present utility model, the lever includes an upper lever and a lower lever, and the above-mentioned push rod is stacked with the upper lever and the lower lever in sequence, and the spring includes a The front spring between the first shaft pin and the upper lever and the rear spring suspended between the third shaft pin and the upper lever, the first cavity, the second cavity and the third cavity are opened on the upper lever On the lower lever, there are front holes and rear holes respectively corresponding to the first cavity and the third cavity, and the front holes and the rear holes are respectively used for accommodating the front spring and the rear spring.

In yet another specific embodiment of the present utility model, the push rod is fixed to the ends of the first pivot pin, the second pivot pin and the third pivot pin, and the first pivot pin, the second pivot pin The respective intermediate bosses of the third shaft pin and the third shaft pin are respectively accommodated in the first cavity, the second cavity and the third cavity, and the respective lower bosses of the first shaft pin, the second shaft pin and the third shaft pin Respectively abutting against the bottom of the upper lever, the respective lower bosses on the first pivot pin, the second pivot pin and the third pivot pin respectively form a stepped shape with the respective middle bosses.

In the operating mechanism of the switch described in the utility model, a sliding connection device composed of a pin-cavity matching structure is arranged between the push rod and the lever, which includes a first cavity, a second cavity and a third cavity, and corresponding The first pivot pin, the second pivot pin and the third pivot pin accommodated in the first cavity, the second cavity and the third cavity, the first pivot pin, the second pivot pin and the third pivot pin The pins can move linearly relative to the first cavity, the second cavity and the third cavity respectively, the linear motion track of the first pin, the linear track of the second pin and the linear motion of the third pin Among the trajectories, at least one linear motion trajectory is parallel to the other two. Through this sliding connection device, the push rod is slidably connected above the lever, and when the push rod moves relative to the lever, at any moment there are only two pivot pins and the action walls one and two (the length along the length in the second cavity) One of the walls of the front acting wall (one side along the length direction in the first cavity) and one of the walls of the rear acting wall (one side along the length direction in the second cavity) are in contact , to achieve point-to-surface contact sliding along the cavity, which effectively reduces the surface friction during the sliding process. Compared with the surface-to-surface contact in the prior art, it eliminates the jamming or fit caused by the large surface-to-surface contact friction The switch closing and opening failure caused by the large gap, and the operation stroke is large and the operation force is small.

Description of drawings

Fig. 1 is a front view of an automatic transfer switch formed by cooperation of the operating mechanism of the switch described in the present invention and the switch body.

Fig. 2 is a side view of an automatic transfer switch formed by cooperation of the operating mechanism of the switch described in the present invention and the switch body.

Fig. 3 is a three-dimensional exploded view of the operating mechanism of the switch described in the present invention.

Fig. 4 is a perspective view of the driven part of the present invention.

Fig. 5 is a three-dimensional exploded view of the driven part of the present invention.

Fig. 6a is a schematic plan view of the push rod of the present invention.

Fig. 6b is a diagram of a preferred embodiment of the upper lever described in the present invention.

Fig. 6c is another embodiment diagram of the upper lever according to the invention.

Fig. 6d is a diagram of another embodiment of the upper lever according to the invention.

Fig. 6e is a diagram of another embodiment of the upper lever according to the invention.

Fig. 7 is a reverse schematic diagram of the cooperation between the push rod and the upper lever according to the utility model.

Fig. 8 is a schematic plan view of the driving disc of the present invention.

Fig. 9 is a perspective view of the driving disc of the present invention.

Fig. 10 is a front view of the limiting disc of the present invention.

Fig. 11 is a perspective view of the gear of the present invention.

Fig. 12a is a schematic front view of the manual operation shaft described in the present invention.

Fig. 12b is a schematic bottom view of the manual operation shaft described in the present invention.

Fig. 13 is a diagram of the common closing standby opening state when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 14 is a schematic diagram of the first opening movement commonly used when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 15 is a schematic diagram of the second opening movement commonly used when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 16 is a schematic diagram of the switch operating mechanism and the switch body of the utility model cooperating to form an automatic transfer switch, which is commonly used to open the gate, and the backup corresponds to the first drive shaft to push the right follower push rod.

Fig. 17 is a schematic diagram of the standby first closing movement when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 18 is a schematic diagram of the transition from the standby first closing movement to the standby second closing movement when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 19 is a schematic diagram of the standby second closing movement when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 20 is a schematic diagram of the final closing position of the standby switch when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 21 is a diagram of the common tripping standby opening state when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 22 is a schematic diagram of the commonly used re-buckle process when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 23 is a schematic diagram of the second re-buckle process commonly used when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

Fig. 24 is a schematic diagram of three commonly used re-buckle processes when the operating mechanism of the switch described in the present invention cooperates with the switch body to form an automatic transfer switch.

In the figure: 1. Upper mounting plate, 11. Upper rotary shaft hole 1, 12. Upper rotary shaft hole 2, 13. Upper rotary shaft hole 3, 14. Upper rotary shaft hole 4; 2. Lower mounting plate, 21. Lower Rotary shaft hole one, 22. Lower rotary shaft hole two, 23. Lower rotary shaft hole three, 24. Lower rotary shaft hole four; 3. Motor, 31. Motor output shaft, 32. Through hole; 4. Gear shaft, 41 .limiting shaft end, 42. open shaft end; 5. manual operation shaft, 501. operation hole, 502. groove, 504a. first cavity, 504b. second cavity, 506. screw hole, 507. drive Cam; 20. driven part, 201a. first handle driving roller, 201b. second handle driving roller, 202. rotary shaft, 203. push rod, 2031. closing surface, 2032. buckle surface, 2033. forward slide Entry surface, 2034. Rear sliding surface, 204a. First push shaft, 204b. Second push shaft, 205. Lower lever, 2051. Arc gap, 206. Upper lever, 2061. First cavity, 20611. Front Action wall, 2062. second cavity, 2062a. action wall one, 2062b. action wall two, 2063. third cavity, 20631. rear action wall, 207. first pivot pin, 208. second pivot pin, 209 .Third shaft pin, 207891. Middle boss, 207892. Lower boss, 210. Driving slot, 211a. Front spring, 211b. Rear spring, 212. Shaft, 213a. Front axle, 213b. Rear axle, 214a. Front bar Hole, 214b. Rear hole, 215a. Upper hole, 215b. Lower hole; 40. Driving part, 401. Driving disc, 402. Gear, 4021. Shaft hole, 4022. Upper shaft head, 4023. Driving boss surface, 4024 .Installation boss surface, 4025. Installation surface, 4026. Tooth body, 4027. Hole, 403. Limit plate, 4031. Front edge, 4032. Waist-shaped limit groove, 4033. Rear edge, 4034. Limit plate hole, 4035. Screw through hole, 405a. First drive shaft, 405b. Second drive shaft, 4061. Waist groove, 4062. Drive plate hole, 4063. Drive head, 4064. Arc connection surface, 4065a. First transition surface , 4065b. second transition surface, 4066a. first push surface, 4066b. second push surface; 100. operating device, 101. circuit breaker, 1011. operating handle, 102. circuit breaker, 1021. operating handle.

detailed description

The applicant will describe in detail the specific implementation of the present invention below in conjunction with the accompanying drawings, but the applicant's description of the embodiments is not a restriction on the technical solution, and any changes based on the concept of the present invention in form rather than in substance should be regarded as Protection scope of the present utility model.

Please refer to Fig. 1 to Fig. 12, the operating mechanism of the switch of the utility model cooperates with the molded case circuit breaker as the switch body to form an embodiment of an automatic transfer switch. In this embodiment, the mounting plate includes the upper mounting plate 1, Lower mounting plate 2. Between the upper mounting plate 1 and the lower mounting plate 2, a driving part 40, a pair of driven parts 20 and a gear shaft 4 arranged symmetrically on the left and right sides of the driving part 40 are installed, and a motor 3 is installed below the lower mounting plate 2. A manual operation shaft 5 is installed above the upper mounting plate 1 . The upper mounting plate 1 is provided with an upper rotary shaft hole 11, an upper rotary shaft hole 2 12, an upper rotary shaft hole 3 13 and an upper rotary shaft hole 4 14. Correspondingly, the lower mounting plate 2 is provided with There are lower rotary shaft hole 1 21, lower rotary shaft hole 2 22, lower rotary shaft hole 3 23 and lower rotary shaft hole 4 24, wherein the driven part on the left side in a pair of driven parts 20 is installed on the upper side through the rotary shaft 202. Between the rotary shaft hole two 12 and the lower rotary shaft hole two 22, the driven part on the right side is installed between the upper rotary shaft hole one 11 and the lower rotary shaft hole one 21 through the rotary shaft 202 . The motor 3 is fixed below the lower mounting plate 2, and the motor output shaft 31 on the motor 3 passes through the lower rotary shaft hole 3 23 on the lower mounting plate 2 upwards, and the motor output shaft 31 is designed to be flat It is circular and has a through hole 32 in the radial direction. The driving part 40 is fitted on the motor output shaft 31 through the oblate shaft hole 4021 in the middle of the gear 402 axially, and the spring pin traverses the through hole 32 on the motor output shaft 31 and the gear 402 hole 4027, as shown in Figure 11. The upper shaft head 4022 of the gear 402 is installed in the upper rotary shaft hole three 13 . The gear shaft 4 passes through the waist-shaped groove 4061 (as shown in FIG. 9 ) on the driving part 40, and is installed between the upper rotary shaft hole 414 and the lower rotary shaft hole 424. The upper end of the gear shaft 4 is provided with an open shaft end 42, and the lower end of the gear shaft 4 is provided with a limit shaft end 41. The limit shaft end 41 is accommodated in the waist-shaped groove 4061, and the open shaft The end 42 protrudes upwards from the upper mounting plate 1. The manual operation shaft 5 is provided with a first cavity 504a and a second cavity 504b matching the open shaft end 42 of the gear shaft 4. The manual operation shaft 5 passes through The first cavity 504 a and the second cavity 504 b are fitted on the open shaft end 42 of the gear shaft 4 and fixed by screws and screw holes 506 . A square operation hole 501 is formed at the end of the manual operation shaft 5 . A drive cam 507 protrudes from the outer peripheral surface of the manual operation shaft 5, and is used to cooperate with a signal output device (not shown in the figure, known technology) fixed on the upper mounting plate 1, and the drive signal is output through the drive cam 507. The device can judge whether the dual power switch is in the double-off position, or combine the auxiliary signal inside the switch to judge whether the switch is in contact adhesion fault. The shaft body of the manual operation shaft 5 is provided with a groove 502 for cooperating with an isolating locking device (not shown in the figure, known technology) to realize isolating and locking in the double-off position of the dual power switch.

The drive component 40 includes a drive plate 401, the above-mentioned gear 402 and a limit plate 403, as shown in Figures 8, 9, 10 and 11, the gear 402 also has a tooth body 4026, The mounting surface 4025, the mounting boss surface 4024 and the driving boss surface 4023, the tooth body 4026 is used to mesh with the gear shaft 4 to realize the linkage with the manual operation shaft 5, the installation boss surface 4024 and the limit plate 403 The limit disc hole 4034 on the top is compatible, and the installation surface 4025 abuts against the limit disc 403 . Set the drive plate 401 on the mounting boss surface 4024 of the gear 402 through the drive plate hole 4062 in the middle, and make the drive boss surface 4023 match the drive plate hole 4062, and at the same time make the waist-shaped groove 4061 on the drive plate 401 and the limit plate The waist-shaped limit groove 4032 on the 403 is aligned, and finally the three are fixed into one body by screws. The limit plate 403 has an arc-shaped front edge 4031 and a rear edge 4033, and the adjacent parts form steps. The front edge 4031 is a limiting surface, which is used to cooperate with the arc notch 2051 on the driven part 20 to realize the interlocking function, and the rear edge 4033 is a working notch, which is used to prevent the driving part 40 from moving in the positions shown in Fig. 18 and Fig. 20 . Interference with the driven part 20 occurs, and finally the limiting disc 403 and the driving disc 401 are fixed together by screws passing through the screw through holes 4035 .

The drive disc 401 is provided with a pair of drive heads 4063, and a certain angle is separated between the pair of drive heads 4063. This angle requires that the drive head 4063 on the left drive the left driven part 20 to close in place, and the drive head 4063 on the right The drive head 4063 should not affect the left driven part 20 trip indication. The drive head 4063 is mainly composed of a first push surface 4066a, a second push surface 4066b and an arc connection surface 4064, and the first push surface 4066a, the second push surface 4066b and the arc connection surface 4064 are respectively passed through a first The transition surface 4065a and the second transition surface 4065b make a smooth transition. The outermost distance H (shown in FIG. 8 ) of the driving head 4063 must be smaller than the minimum distance L (shown in FIG. 4 ) inside the first push shaft 204a and the second push shaft 204b of the driven part 20, that is, H<L, in a The driving head 4063 is respectively provided with a first driving shaft 405a and a second driving shaft 405b. The first driving shaft 405a and the second driving shaft 405b are designed in the form of rollers, preferably with rolling bearings in this embodiment column, the outer distance between the first drive shaft 405a and the second drive shaft 405b should be smaller than the outermost distance H of the drive head 4063, and the inner distance between the first drive shaft 405a and the second drive shaft 405b should be greater than the push rod 203 the outer distance.

The driven part 20 includes a lever and a push rod 203 and a sliding connection device arranged between the lever and the push rod 203; the sliding connection device is a pin-cavity matching structure, which includes a first cavity 2061, a second cavity The cavity 2062 and the third cavity 2063, and the first pivot pin 207, the second pivot pin 208 and the third pivot pin respectively accommodated in the first cavity 2061, the second cavity 2062 and the third cavity 2063 The pin 209, the first shaft pin 207, the second shaft pin 208 and the third shaft pin 209 can move linearly relative to the first cavity 2061, the second cavity 2062 and the third cavity 2063 respectively, and the described Among the linear motion tracks of the first pin 207 , the linear motion track of the second pin 208 and the linear motion track of the third pin 209 , at least one linear motion track is parallel to the other two.

In this embodiment, the three linear motion trajectories are not on the same straight line, that is, the linear motion trajectory of the first pivot pin 207, the linear motion trajectory of the second pivot pin 208 and the linear motion trajectory of the third pivot pin 209 They are respectively located on three different straight lines parallel to each other. In this embodiment, the arrangement of the first cavity 2061, the second cavity 2062 and the third cavity 2063 is as follows: the first cavity 2061, Both the second cavity 2062 and the third cavity 2063 are arranged in a straight long groove structure, and the three are arranged parallel to each other on the lever. The first cavity 2061 and the third cavity 2063 are respectively arranged on both sides of the second cavity 2062, In the second cavity 2062, two sides along the length direction of the straight groove are formed with an action wall 1 2062a and an action wall 2062b facing each other. The front acting wall 20611 forms a rear acting wall 20631 along one side of the length direction of the straight groove in the third cavity 2063; The push rod 203 has a front slide-in surface 2033 and a rear slide-in surface 2034 on both sides of the rotary shaft 202 and a closing surface 2031 on both sides of the front slide-in surface 2033 and the rear slide-in surface 2034. surface 2032, the first pivot pin 207, the second pivot pin 208 and the third pivot pin 209 are arranged on the push rod 203; The front spring 211a and the rear spring 211b suspended between the third pivot pin 209 and the lever; when the driving part 40 acts on the front sliding surface 2033, the second pivot pin 208 slides on the action wall two 2062b, and at the same time , the third shaft pin 209 slides on the rear action wall 20631; when the driving part 40 acts on the rear sliding surface 2034, the second shaft pin 208 slides on the action wall one 2062a, and at the same time, the first shaft pin 207 is at the front Slide on the action wall 20611; when the driving part 40 acts on the closing surface 2031, the second shaft pin 208 pushes the action wall 2062b, and at the same time, the third shaft pin 209 pushes the rear action wall 20631, and the left driven The action of the component 20 drives the operating handle 1021 to move to the closing position; when the driving component 40 acts on the re-fastening surface 2032, the second pivot pin 208 pushes the action wall 1 2062a, and at the same time, the first pivot pin 207 pushes the front action wall 20611, the action of the driven part 20 on the left drives the operating handle 1021 to move to the re-clamping position.

The lever includes an upper lever 206 and a lower lever 205. The aforementioned push rod 203, upper lever 206 and lower lever 205 are stacked in sequence, and the first cavity 2061, the second cavity 2062 and the third cavity 2063 are arranged on the upper lever. The upper lever 206 and the lower lever 205 are provided with a front hole 214a and a rear hole 214b respectively corresponding to the first cavity 2061 and the third cavity 2063, and the front hole 214a and the rear hole 214b are respectively used to accommodate the front spring 211a and rear spring 211b. The push rod 203 is fixed to the ends of the first pivot pin 207, the second pivot pin 208 and the third pivot pin 209, and the respective first pivot pin 207, the second pivot pin 208 and the third pivot pin 209 The middle bosses 207891 are respectively accommodated in the first cavity 2061, the second cavity 2062 and the third cavity 2063, while the respective lower bosses of the first pivot pin 207, the second pivot pin 208 and the third pivot pin 209 207892 abut against the bottom of the upper lever 206 respectively, the respective lower bosses 207892 on the first shaft pin 207, the second shaft pin 208 and the third shaft pin 209 respectively form a stepped shape with the respective middle bosses 207891, The push rod 203 is limited in the height direction of the switch operating mechanism (that is, the axial direction of the shaft pin). Front axle 213a, rear axle 213b are riveted on the upper lever 206, and one end of front spring 211a, rear spring 211b is fixed on front axle 213a, rear axle 213b, and the other end of front spring 211a, rear spring 211b is fixed on the first axle. pin 207 and the third shaft pin 209, so that the push rod 203 can return to its original position under the elastic force of the front spring 211a and the rear spring 211b after being pushed away. The first push shaft 204a and the second push shaft 204b are fixed on one end of the lower lever 205, and the middle of the other end of the lower lever 205 and the upper lever 206 forms a drive slot 210 for matching with the switch body handle. The shaft 204a and the second pushing shaft 204b adopt a roller design, and in this embodiment, a column with a rolling bearing is preferably used. The head of the push rod 203 is located between the first push shaft 204a and the second push shaft 204b. The first handle driving roller 201 a and the second handle driving roller 201 b are respectively sleeved on the shaft 212 , the roller material can be plastic or metal, and the upper lever 206 and the lower lever 205 are fixed together by the shaft 212 . The rotary shaft 202 is fixed in the middle of the upper lever 206 and the lower lever 205 after passing through the upper hole 215a on the upper lever 206 and the lower hole 215b on the lower lever 205 . The first push shaft 204a, the second push shaft 204b, the first handle driving roller 201a, and the second handle driving roller 201b are located on two sides of the rotary shaft 202, respectively. The lower lever 205 of the driven part 20 is provided with an arc notch 2051 on the end close to the driving part 40 to match the front edge 4031 of the driving part 40 . The operating handle 1021 of the circuit breaker 101 is located in the driving slot 210 .

The distance between the first push shaft 204a and the second push shaft 204b is related to the distance between the two drive heads 4063, as shown in Figure 13, when the common circuit breaker is in the closing state and the backup circuit breaker is in the opening state, If the handle of the common circuit breaker is manually moved to the direction of the opening position, the handle of the common circuit breaker pushes the second handle driving roller 201b, so that the driven part 20 on the left side rotates counterclockwise around the rotary shaft 202, and the first push shaft 204a pushes the right The driving head 4063 on the side makes the driving part 40 rotate clockwise. As shown in FIG. If the handle of the commonly used circuit breaker is manually driven to continue to move toward the opening position, the first push shaft 204a pushes the drive head 4063 on the right side, and the clockwise rotation of the drive part 40 makes the second push shaft 204b meet the drive head 4063 on the right side. 4063 is engaged to form a lock, which hinders the continued rotation of the driven part 20 on the left side, thereby hindering the movement of the manual toggle handle to the opening position.

The head of the push rod 203 is composed of a plurality of inclined surfaces, which are respectively a closing surface 2031 , a locking surface 2032 , a front sliding surface 2033 , and a rear sliding surface 2034 . Multiple slopes transition through arc surfaces. Wherein, the front sliding surface 2033 , the closing surface 2031 , the rear sliding surface 2034 , and the buckle surface 2032 are respectively arranged on two sides of the second cavity 2062 .

The operating device 100 is installed between two circuit breakers 102 (normal circuit breaker) and circuit breaker 101 (standby circuit breaker), so that the operating handle 1011 of the circuit breaker 101 is located at the first handle of the driven part 20 on the right Between the driving roller 201a and the second handle driving roller 201b, the operating handle 1021 of the circuit breaker 102 is located between the first handle driving roller 201a and the second handle driving roller 201b of the driven part 20 on the left.

The operation process of the entire switch device is shown in Figure 13 to Figure 20: when the common switch is closed and the standby switch is opened, the waist-shaped groove 4061 of the driving part 40 is against the limit shaft end 41 at the lower end of the gear shaft 4, and the left side The driven part 20 is separated from the driving part 40, and the arc-shaped notch 2051 on the right driven part 20 is close to the arc-shaped front edge 4031 of the driving part 40, preventing the right driven part 20 from driving the circuit breaker 101 Closing is performed to realize mechanical interlocking, so that only one switch of the circuit breaker 101 and the circuit breaker 102 is in the closing state.

When the normal power supply fails, the motor 3 drives the gear 402 to rotate clockwise, and the gear 402 drives the drive disc 401 to rotate together through the drive boss surface 4023, so that the second drive shaft 405b on the drive disc 401 follows the rear of the push rod 203 The sliding surface 2034 pushes away the push rod 203, because the second drive shaft 405b produces a component force along the direction of the chute on the upper lever 6 on the rear sliding surface 2034, so that the second shaft pin 208 acts on the front wall 2062a Sliding up, the first pivot pin 207 slides on the front action wall 20611, during this process, the third pivot pin 209 has no interaction with the rear action wall 30631, the push rod 203 slides away from the driving disc 40, the second drive shaft 405b pushes away the push rod 203 along the rear sliding surface 2034 on the push rod 203. During this process, the first shaft pin 207, the second shaft pin 208, and the third shaft pin 209 are located in the first cavity 2061, the second shaft pin, respectively. In the second cavity 2062 and the third cavity 2063, and there is relative movement between the first pivot pin 207 and the first cavity 2061, the first pivot pin 207 has a linear motion track, the second pivot pin 208 and the second cavity There is relative motion between the cavities 2062, the second shaft pin 208 has a linear motion track, there is relative motion between the third shaft pin 209 and the third cavity 2063, the third shaft pin 209 has a straight line motion track, and the three shafts The motion trajectories of the straight lines produced by the pins are parallel to each other and not on the same straight line. Next, the first push surface 4066a on the drive head 4063 on the left side engages with the first push shaft 204a on the driven part 20 on the left side, thereby Push the left driven part 20 to rotate counterclockwise, and the first handle driving roller 201a and the second handle driving roller 201b on the driving groove 210 of the left driven part 20 drive the circuit breaker handle 1021 to move to the opening position . After the second drive shaft 405b is separated from the push rod 203, the push rod 203 returns to its original position under the spring force of the front spring 211a and the rear spring 211b.

The driving part 40 continues to drive the left driven part 20 to rotate clockwise around the rotary shaft 202 until the first pushing surface 4066a on the left driving head 4063 disengages from the first pushing shaft 204a, and the left driving head 4063 The upper drive surface transitions from the first push surface 4066a to the first transition surface 4065a. At this time, the first opening movement of the switch body is completed, and the first drive shaft 405a on the left drive head 4063 and the push rod 203 The re-button surface 2032 contacts and enters into an engaged state. Since the component force generated by the first driving shaft 405a on the re-fastening surface 2032 is opposite to the moving direction of the push rod 203, the first shaft pin 207 pushes the front action wall 20611, and the second shaft pin 208 pushes the action wall 1 2062a, The push rod 203 remains stationary relative to the lever, and the action of the driven part 20 on the left side drives the handle 1021 to move to the re-buckle position until the first drive shaft 405a is disengaged from the push rod 203, and the second opening movement of the switch body is completed. The first drive shaft 405a is disengaged from the left driven part 20 after crossing the re-fastening surface 2032 .

Now, the first drive shaft 405a on the drive head 4063 on the right side pushes away the push rod 203 on the right driven part 20 along the front slide-in surface 2033, because the first drive shaft 405a is on the front slide-in surface 2033 Generate a component force along the direction of the chute on the upper lever 206, the first drive shaft 405a acts on the front sliding surface 2033, so that the second shaft pin 208 slides on the action wall 2 2062b, and the third shaft pin 209 is behind Sliding on the action wall 20631, during this process, the first pivot pin 207 has no interaction with the front action wall 20611, and the push rod 203 slides in the direction away from the drive plate 40 along the direction of the chute on the upper lever 206, so that the right side The second push surface 4066b on the drive head 4063 of the drive head 4063 is engaged with the second push shaft 204b on the driven part 20 on the right side. When the second drive shaft 405b is disengaged from the push rod 203, the push rod 203 is pushed forward by the front spring 211a. , Return to the original position under the spring force of the rear spring 211b. At this time, since the driving part 40 is disengaged from the left driven part 20, the left driven part 20 remains in its original state, and the circuit breaker 102 is in an open state.

The second pushing surface 4066b on the driving head 4063 on the right acts on the second pushing shaft 204b on the driven part 20 on the right, so that the driven part 20 on the right rotates counterclockwise and drives the second operating handle 1011 to close. The brake position moves until the second push surface 4066b is disengaged from the second push shaft 204b, and the drive surface on the right drive head 4063 transitions from the second push surface 4066b to the second transition surface 4065b. At this time, the switch body is completed In the first closing movement, the second drive shaft 405b contacts the closing surface 2031 on the push rod 203, and enters the meshing state. The second drive shaft 405b acts on the closing surface 2031 of the push rod 203 on the driven part 20 on the right side. Since the component force generated by the second drive shaft 405b on the closing surface 2031 is opposite to the direction of movement of the push rod 203, The second shaft pin 208 pushes the action wall 2062b, and the third shaft pin 209 pushes the rear action wall 20631, so that the driven part 20 on the right side can be reliably driven to continue to rotate, and the handle of the drive switch body continues to move toward the closing position. , until the second drive shaft 405b disengages from the push rod 203 on the right driven part 20, the second closing movement of the switch body is completed. When the second driving shaft 405b crosses the closing surface 2031 , it disengages from the driven part 20 on the right side, and makes the waist-shaped groove 4061 on the driving part 40 abut against the limiting shaft end 41 of the gear shaft 4 . The arc notch 2051 on the left driven part 20 is close to the arc-shaped front edge 4031 of the drive part 40, preventing the left driven part 20 from driving the circuit breaker 102 to close, and realizing mechanical interlocking.

As shown in Figure 13, when the switch is tripped in the closed state, the operating handle 1021 of the circuit breaker 102 moves downward, driving the driven part 20 on the left side to rotate rapidly around the rotary shaft 202, as shown in Figures 21 to 24 , the operating handle 1021 stops at the tripping position, and the first push shaft 204a on the driven part 20 on the left side abuts against the driving head 4063 on the right side due to the limit of the driving head 4063 on the right side of the driving disc 401 On the first pushing surface 4066a on the upper side, the rotation of the driven part 20 on the left side is limited.

When buckling again, the driving part 40 rotates clockwise, so that the driving head 4063 on the right side is gradually disengaged from the first pushing shaft 204a, and the driven part 20 on the left side can be free because there is a gap between the handle driving groove 210 and the operating handle 1021. Activity. In order to make the operating handle 1021 be buckled smoothly again, the arc connecting surface 4064 on the left driving head 4063 is first in contact with the second pushing shaft 204b, and at this time the second pushing shaft 204b drives the left side along the arc connecting surface 4064 The driven part 20 rotates clockwise, so that the rear sliding surface 2034 on the push rod 203 and the second drive shaft 405b are close to each other, and pushes away the push rod 203 along the rear sliding surface 2034, so that the first pushing surface 4066a is in contact with the second drive shaft 405b. The first pushing shaft 204a is in contact with each other and enters the re-clamping state. And start to drive the driven part 20 on the left side to rotate counterclockwise, so as to realize the re-locking of the operating handle 1021 .

In the above-mentioned embodiment, the operating device 100 of the present utility model is applied to the dual-power automatic transfer switch as shown in FIG. The driven part 20 is a circuit breaker 101 and a circuit breaker 102 respectively driven in cooperation with the two driven parts 20 . The operating device 100 of the present utility model is not limited to the above-mentioned application mode, and can also be used to form an operating mechanism for driving a single switch, such as a molded case circuit breaker. A driving head 4063 is provided, and a driven part 20 is correspondingly provided. One side of the driven part 20 cooperates with the driving head 4063, and the other side cooperates with the switch handle.

The above-mentioned embodiment is that the utility model is preferably provided with a first cavity 2061, a second cavity 2062, and a third cavity 2063 on the upper lever 206, and the three cavities are all composed of closed straight long grooves. A front action wall 20611 is formed on the first cavity 2061, and a rear action wall 20631 is formed on the third cavity 2063, as shown in Fig. 6b. The structure of the upper lever 206 of the present invention is not limited to the above-mentioned embodiment, as Fig. Another embodiment of the novel upper lever 206, wherein the second cavity 2062 is formed by a closed straight long groove, while the first cavity 2061 and the third cavity 2063 are open cavity, that is, by the upper lever 206 The two sides respectively form the first cavity 2061 and the third cavity 2063, and the two sides of the upper lever 206 respectively form the front action wall 20611 and the rear action wall 20631, the first pivot pin 207 cooperates with the front action wall 20611, and the third axis The pin 209 cooperates with the rear acting wall 20631. Figure 6d is another embodiment of the upper lever 206 of the present invention, wherein the first cavity 2061, the second cavity 2062 and the third cavity 2063 are all formed by closed straight long grooves, and the first cavity 2061 1. The position of the second chamber 2062 on the lever is located on the same straight line, and the straight line where the third chamber 2063 is located is parallel to the aforementioned straight line. Under this structure, when the push rod 203 slides relative to the lever, the first pivot pin 207 , the second shaft pin 208 and the third shaft pin 209 make linear motions relative to the first cavity 2061, the second cavity 2062 and the third cavity 2063 respectively, the linear motion track of the first shaft pin 207 and the second shaft pin 208 The rectilinear motion trajectory of the third pivot pin 209 is on the same straight line, and the linear motion trajectory of the third pivot pin 209 is parallel to the above-mentioned straight line. Figure 6e is another embodiment of the upper lever 206 of the present invention, wherein the first cavity 2061, the second cavity 2062 and the third cavity 2063 are all formed by closed straight long grooves, and the first cavity 2061 1. The positions of the third cavity 2063 on the lever are located on the same straight line. The straight line where the second cavity 2062 is located is parallel to the aforementioned straight line. Under this structure, when the push rod 203 slides relative to the lever, the first pivot pin 207, the second pivot pin 208 and the third pivot pin 209 are respectively relative to the first pivot pin 207. The cavity 2061, the second cavity 2062 and the third cavity 2063 perform linear motion, the linear motion track of the first pivot pin 207 and the linear motion track of the third pivot pin 209 are located on the same straight line, the straight line of the second pivot pin 208 The motion trajectory is parallel to the above-mentioned straight line. It can be seen that the specific embodiment of the present utility model has various structures, and the setting positions and modes of the three cavities only need to satisfy: the linear motion trajectory of the first pivot pin 207, the linear motion trajectory of the second pivot pin 208 and the first pivot pin 208. Among the linear motion trajectories of the three-axis pin 209, at least one linear motion trajectory is parallel to the other two, that is, the three linear motion trajectories are not on the same straight line in the embodiment shown in Figure 6b and Figure 6c described in the above description; As well as the embodiment shown in Fig. 6d and Fig. 6e described in the above description, two of the three linear motion trajectories are located on the same straight line, and the other linear motion trajectory is parallel to the above-mentioned straight line. In addition, the three pins in the sliding connection device of the present invention can also be fixed on the lever, and the three cavities can also be set on the push rod 203 .

Claims (9)

1. An operating mechanism of a switch, comprising: a mounting plate, a driven part (20) pivotally connected to the mounting plate through a rotary shaft (202), and a driving member pivotally connected to the mounting plate and driven to rotate by a motor (3) part (40), one end of the driven part (20) is matched with the driving part (40), the other end of the driven part (20) is matched with the operating handle (1021) of the circuit breaker, and the operating handle is The switch can be moved between the positions of the brake and re-buckle to realize the closing, opening and re-buckle of the switch; it is characterized in that: the driven part (20) includes a lever and a push rod (203) and is arranged on the lever and the push rod (203 ) between the sliding connection device; the sliding connection device is a pin-cavity matching structure, which includes a first cavity (2061), a second cavity (2062) and a third cavity (2063), and respectively corresponding to the cavity The first pivot pin (207), the second pivot pin (208) and the third pivot pin (209) fitted in the first cavity (2061), the second cavity (2062) and the third cavity (2063) , the first shaft pin (207), the second shaft pin (208) and the third shaft pin (209) can be opposite to the first cavity (2061), the second cavity (2062) and the third cavity respectively (2063) performing linear motion, among the linear motion trajectory of the first pivot pin (207), the linear trajectory of the second pivot pin (208) and the linear motion trajectory of the third pivot pin (209), at least one straight line The motion trajectory is parallel to the other two. 2. The operating mechanism of a switch according to claim 1, characterized in that none of the three linear motion trajectories is on the same straight line. 3 . The switch operating mechanism according to claim 1 , wherein two of the three linear motion tracks are located on the same straight line, and the other linear motion track is parallel to the above-mentioned straight line. 4 . 4. The operating mechanism of a switch according to claim 1, characterized in that the first pivot pin (207), the second pivot pin (208) and the third pivot pin (209) are arranged on the push rod ( 203), the first cavity (2061), the second cavity (2062) and the third cavity (2063) are arranged on the lever. 5. The operating mechanism of a switch according to claim 1, characterized in that said first pivot pin (207), second pivot pin (208) and third pivot pin (209) are arranged on a lever, The first cavity (2061), the second cavity (2062) and the third cavity (2063) are arranged on the push rod (203). 6. The operating mechanism of a switch according to claim 4, characterized in that the first cavity (2061) and the third cavity (2063) are respectively arranged on both sides of the second cavity (2062), In the second cavity (2062) along the two sides of the length direction, there are two action walls (2062a) and two (2062b) facing each other, and one side of the first cavity (2061) is formed along the length direction. The front acting wall (20611) forms a rear acting wall (20631) along one side of the length direction in the third cavity (2063); the sliding connection device also includes a spring for restoring the push rod (203). 7. The operating mechanism of a switch according to claim 6, characterized in that said rotary shaft (202) is located on the straight line where the linear motion track of the second shaft pin (208) is located, and said push rod (203 ) has a front slide-in surface (2033) and a rear slide-in surface (2034) on both sides of the rotary shaft (202), and a combination of front slide-in surface (2033) and rear slide-in surface (2034) Gate surface (2031), buckle surface (2032) again. 8. The operating mechanism of a switch according to claim 7, characterized in that said lever comprises an upper lever (206), a lower lever (205), said push rod (203) and said upper lever ( 206), the lower lever (205) is stacked successively, and the spring includes a front spring (211a) suspended between the first pivot pin (207) and the upper lever (206) and a front spring (211a) suspended between the third pivot pin ( 209) and the rear spring (211b) between the upper lever (206), the first cavity (2061), the second cavity (2062) and the third cavity (2063) are set on the upper lever (206) On the lower lever (205), there are front holes (214a) and rear holes (214b) respectively corresponding to the first chamber (2061) and the third chamber (2063). The front holes (214a) and The rear bar holes (214b) are respectively used to accommodate the front spring (211a) and the rear spring (211b). 9. The operating mechanism of a switch according to claim 8, characterized in that the push rod (203) is connected with the first pivot pin (207), the second pivot pin (208) and the third pivot pin (209) ) is fixed at the end, and the intermediate bosses (207891) of the first shaft pin (207), the second shaft pin (208) and the third shaft pin (209) are respectively accommodated in the first cavity (2061) , the second cavity (2062) and the third cavity (2063), and the respective lower bosses (207892) of the first pivot pin (207), the second pivot pin (208) and the third pivot pin (209) Respectively against the bottom of the upper lever (206), the respective lower bosses (207892) on the first pivot pin (207), the second pivot pin (208) and the third pivot pin (209) are respectively connected with the respective The intermediate boss (207891) forms a stepped shape.