CN214326929U - Device for hoisting wiring board from operation table to electrical cabinet for installation - Google Patents

Abstract

The utility model discloses a hang the device of seeing to installation in regulator cubicle with the wiring board from the operation panel, its device includes the suspension, steering mechanism and rocking arm mechanism, the suspension is installed before the gate of regulator cubicle, steering mechanism installs on the suspension, steering mechanism has the pivot, rocking arm mechanism fixed mounting can rotate along with the pivot in the pivot, rocking arm mechanism has the rocking arm part that one end was installed on rocking arm mechanism, during the use, the other end of rocking arm part catches on the upper end of wiring board down, rocking arm mechanism drive pivot is rotated, the one end from bottom to top that makes rocking arm part catch on the wiring board just is to the rotation in the regulator cubicle cabinet door, make the wiring board upper end upwards mention forward and send into in the cabinet door of regulator cubicle. The advantages are that: the wiring board is lifted from the wiring operation table, erected, pushed into the electric appliance cabinet and adjusted in height in the cabinet without manual labor, the actions can be easily, accurately and quickly completed, and the working efficiency is obviously improved.

Description

Device for hoisting wiring board from operation table to electrical cabinet for installation

Technical Field

The utility model relates to a hang the device of delivering to installation in regulator cubicle from the operation panel with the wiring board belongs to the assembler

The field of packaging.

Background

The wiring board in the electrical cabinet has complex circuits and components, the wiring and the operation of connecting wires and components are generally performed by placing the wiring board on a flat wiring operation table, and after the wiring and related operations are completed, the wiring board needs to be transferred into the electrical cabinet for installation. The traditional transfer installation mode is that a wiring board is lifted off a wiring operation table manually, then the wiring board is erected, then a sliding plate or a sliding bar which inclines towards the inside of a cabinet is placed at the bottom of an electric cabinet, the lower end of the wiring board is placed on the sliding plate or the sliding bar, and then the whole wiring board is pushed into the cabinet for installation.

Because the wiring board has great weight, the weight after installing a large amount of wires or electrical components additional is bigger, and the regulator cubicle inner space is narrow, especially wind-powered electricity generation class regulator cubicle, receive the space restriction of placing the regulator cubicle in the wind-powered electricity generation post, the installation space is more narrow and small in the regulator cubicle cabinet, be not convenient for stretch out one's hand and make power, mounting hole and the interior mounting hole of cabinet on the wiring board are extremely difficult to counterpoint for it is extremely inconvenient to carry out the operation of installing in the regulator cubicle to shift the wiring board, need many people in coordination and will consume a large amount of time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the problem that the wiring board is inconvenient to transfer into the electrical cabinet for installation due to the fact that the wiring board is heavy and the installation space in the electrical cabinet is small, and a large amount of time is consumed due to cooperation of multiple persons is needed.

To the above problem, the utility model provides a technical scheme is:

the device comprises a suspension, a steering mechanism and a rotating arm mechanism, wherein the suspension is installed in front of a door of an electrical cabinet, the steering mechanism is installed on the suspension, the steering mechanism is provided with a rotating shaft, the rotating arm mechanism is fixedly installed on the rotating shaft and can rotate along with the rotating shaft, the rotating arm mechanism is provided with a rotating arm component, one end of the rotating arm component is installed on the rotating arm mechanism, when the device is used, the other end of the rotating arm component hooks the upper end of the wiring board downwards, the rotating arm mechanism drives the rotating shaft to rotate, the rotating arm component hooks one end of the wiring board from bottom to top and rotates towards the inside of a cabinet door of the electrical cabinet, and the upper end of the wiring board is lifted forwards and upwards and is sent into the cabinet door of the electrical cabinet.

Furthermore, the steering mechanism further comprises a steering servo motor and a steering driving gear connected with an output shaft of the steering servo motor, wherein a rotating gear is arranged at one end of the rotating shaft, and the steering driving gear is meshed with the rotating gear.

Furthermore, the rotating arm mechanism also comprises a mounting seat, a telescopic servo motor and a rack driving gear connected with an output shaft of the telescopic servo motor, and a rotating arm part of the rotating arm mechanism comprises an arm sleeve, a telescopic arm and a rack axially fixed on the telescopic arm; the mounting seat is rectangular, a third rotating shaft hole is formed in one side of the mounting seat along the length direction, a rotating arm hole is formed in the other side of the mounting seat along the height direction, a rack groove is formed in the inner wall of the rotating arm hole along the axial direction, and a rack opening communicated with the inside and the outside is formed in the arm sleeve along the axial direction; the mounting seat is sleeved and fixed on the rotating shaft through a rotating arm hole, the arm sleeve is sleeved and fixed in the rotating arm hole of the mounting seat, the telescopic arm is sleeved in the arm sleeve, teeth of a rack fixed on the telescopic arm are exposed from a rack port of the arm sleeve and move in a rack groove of the rotating arm hole when the rack stretches out and draws back through the rotating arm hole, the telescopic servo motor is mounted on the upper top surface of the mounting seat, and teeth of a rack driving gear of the telescopic servo motor are meshed with teeth of a rack extending out of the upper top surface of the mounting seat.

Furthermore, the suspension is provided with a seat plate, a first downward rotating shaft support and a second downward rotating shaft support are respectively arranged at one end and the middle part of the bottom end face of the seat plate, a first rotating shaft hole and a second rotating shaft hole which are coaxial with core wires are respectively arranged at the lower ends of the two rotating shaft supports, one section of one end of each rotating shaft is sleeved in the first rotating shaft hole and the second rotating shaft hole, the other end of each rotating shaft extends out of the other side of the second rotating shaft hole, the rotating arm mechanism is fixed on the rotating shaft between the first rotating shaft support and the second rotating shaft support, and the rotating gear is fixed on the rotating shaft extending out of the other side of the second rotating shaft hole.

Furthermore, a distance is arranged between the rotating shaft and the bottom end face of the seat plate, and the size of the distance meets the maximum telescopic amount of the telescopic arm during telescopic operation.

Further, the rotating gear is a semicircular gear with a lower portion removed.

Further, the lower extreme of flexible arm is equipped with the even part of hanging of being connected with flexible arm, even hang the part including with flexible arm vertically ram with establish the hook piece at the ram both ends, the middle part of ram has the sleeve of being connected with flexible arm, has the internal thread in the sleeve, the lower extreme of flexible arm has the external screw thread, the ram utilizes the sleeve to be connected through screw-thread fit with the lower extreme of flexible arm.

Furthermore, the hook piece is formed by integrally connecting a sleeve seat with sleeve holes and the pin in a right-angle shape, the lower end of the pin is provided with a bolt hole, a bolt capable of being pulled out is arranged in the bolt hole, and the two sleeve seats are respectively sleeved at the two ends of the ram through the sleeve holes and can rotate around the ram so as to adapt to the angle change between the wiring board and the telescopic arm when the wiring board is lifted.

The pin is semi-cylindrical with more than half removed axially.

Furthermore, the suspension is a sliding frame with sliding blocks on two sides, a sliding rail frame is arranged above the suspension, and linear sliding rails for the suspension to transversely run are arranged on two sides of the sliding rail frame.

A method for hanging and delivering the wiring board from the working table to the electric cabinet for installation includes such steps as arranging a long rotary arm part on the rotary arm mechanism in front of the door of electric cabinet, hooking the upper end of the wiring board on the working table by the lower end of rotary arm part, and rotating the rotary arm part to rotate the lower end of rotary arm part from bottom to top and toward the electric cabinet.

The method comprises the steps of arranging a rotating arm part into an arm sleeve with a fixed length and a telescopic arm sleeved in the arm sleeve, wherein the lower end of the rotating arm part is hooked on the upper end of a wiring board, the lower end of the telescopic arm is hooked on the upper end of the wiring board, the telescopic arm is contracted before the rotating arm part rotates, the upper end of the wiring board is lifted to a certain height, then the rotating arm part is rotated to enable the lower end of the telescopic arm and the hooked wiring board to rotate towards the door of the electric cabinet to a mounting height, and then the telescopic arm is driven to adjust according to the distance between the wiring board and a mounting position.

The utility model has the advantages that: the wiring board is lifted from the wiring operation table, erected, pushed into the electric appliance cabinet and adjusted in height in the cabinet without manual labor, the actions can be easily, accurately and quickly completed, and the working efficiency is obviously improved.

Drawings

FIG. 1 is a schematic perspective view of the apparatus for lifting a wiring board from a work bench to an electrical cabinet for installation;

FIG. 2 is a schematic perspective view of the apparatus for lifting a wiring board from a work station to an electrical cabinet for installation, the lifted wiring board not showing complex circuitry and components;

fig. 3 is a schematic perspective view of the slide rail slider;

FIG. 4 is a perspective view of the suspension and associated components;

FIG. 5 is a schematic view showing the structural relationship between the rotary shaft, the arm sleeve, the telescopic arm, the rack, and the like on the mounting base;

FIG. 6 is a partial schematic view of FIG. 1;

FIG. 7 is a perspective view of the ram;

fig. 8 is a schematic view of the hook member and the latch being disassembled;

FIG. 9 is a schematic plan view of a corner of the upper end of the wiring board;

fig. 10 is a schematic perspective view of the electrical cabinet.

In the figure: 1. a suspension; 2. a seat plate; 3. a slider; 4. a slide rail; 5. a slide rail frame; 6. mounting a column; 7. a rotating shaft support I; 8. a rotating shaft support II; 9. a first rotating shaft hole; 10. a second rotating shaft hole; 11. a rotating shaft; 12. a rotating gear; 13. a steering servo motor; 14. a steering drive gear; 15. a mounting seat; 16. a rotating shaft hole III; 17. a swivel arm hole; 18. a rack slot; 19. a telescopic servo motor; 20. a rack drive gear; 21. an arm casing; 22. a rack opening; 23. a telescopic arm; 24. a rack; 25. a ram; 26. a sleeve; 27. a hook member; 28. a sleeve seat; 29. trepanning; 30. a pin; 31. a pin hole; 32. a bolt; 33. a wiring board; 34. a bolt mounting hole; 35. a semicircular hole; 36. an electrical cabinet.

Detailed Description

The invention will be further described with reference to the following examples and drawings:

as shown in fig. 9 and 10, the problem to be solved by the present invention is to vertically lift up and push away the wiring board 33 horizontally on the working table into the cabinet door of the electrical cabinet 36 without manual force and without changing the shape and structure of the wiring board 33 and the electrical cabinet 36, and the partial setting of the present invention is specially designed for the structural situation of the wiring board 33 after the shape and structure of the mounting structure and the wiring board finished product in the electrical cabinet 36 cabinet of the wind power generation and the wiring. The electrical cabinet 36 for wind power generation adopts a double-door design, and the wiring board 33 after completing the wiring operation needs to be mounted on a mounting frame close to a back plate in the electrical cabinet 36. Before the wiring board 33 mounting task is completed, the back plate of the electrical cabinet 36 is detached, so that a worker can conveniently perform mounting operation behind the back plate, and the back plate can be mounted after the mounting task is completed.

The wiring board 33 is made of an alloy, has a certain strength, and is elastically deformable to be restorable. The width of the wiring board 33 is slightly smaller than the width of a single door of the electrical cabinet 36, and hands cannot enter the electrical cabinet 36 together with the wiring board 33 from both sides of the wiring board 33 during installation. Bolt mounting holes 34 are provided at four corners of the wiring, and two round holes are provided below the two bolt mounting holes at the upper end of the wiring board, but the lower half of at least one round hole of the two round holes is shielded by a clamping groove mounted on the wiring board 33, so that the hooking round hole becomes a semicircular hole 35. The utility model discloses an application will use these two semicircle orifices 35, therefore has the setting to two semicircle orifices 35.

As shown in fig. 1, 2 and 10, the device for hoisting and delivering the wiring board from the workbench to the electrical cabinet comprises a suspension 1, a steering mechanism and a rotating arm mechanism, wherein the suspension 1 is installed in front of the door of the electrical cabinet 36, the steering mechanism is installed on the suspension 1, and the steering mechanism is provided with a rotating shaft 11. When in design, the height of the rotating shaft 11 is equal to or slightly lower than the height of the upper end of the cabinet door of the electrical cabinet 36. The rotating arm mechanism is fixedly arranged on the rotating shaft 11 and can rotate along with the rotating shaft 11, the rotating arm mechanism is provided with a rotating arm part, one end of the rotating arm part is arranged on the rotating arm mechanism, when the rotating arm mechanism is used, the other end of the rotating arm part hooks the upper end of the wiring board 33 downwards, the rotating arm mechanism drives the rotating shaft 11 to rotate, the rotating arm part hooks one end of the wiring board 33 to rotate from bottom to top and towards the inside of a cabinet door of an electric cabinet 36, and the upper end of the wiring board 33 is lifted forwards and upwards and is conveyed into the cabinet door of the electric cabinet 36. The principle of this is that the swivel arm part has a certain length, and when the swivel arm part is swiveled to the horizontal state, the wiring board 33 has been extended by the length of one swivel arm part directly into the cabinet door of the electrical cabinet 36. Through such setting, with the wiring board from wiring operation bench lift by crane, erect, carry out the wiring board propelling movement to the electrical apparatus cabinet in and carry out the height adjustment in the cabinet and need not artifical power, can light, accurate, quick completion above-mentioned action, show to improve work efficiency.

The following is a further improvement.

As shown in fig. 1, 2, 5 and 6, the steering mechanism further includes a steering servo motor 13 and a steering drive gear 14 connected to an output shaft of the steering servo motor 13, a rotating gear 12 is provided at one end of the rotating shaft 11, and the steering drive gear 14 is engaged with the rotating gear 12. Operating the steering servo motor 13 in this way enables precise rotation of the rotation shaft 11 by the amount of the rotation angle, thereby controlling the height at which the wiring board 33 is lifted.

The rotating arm mechanism further comprises a mounting seat 15, a telescopic servo motor 19 and a rack driving gear 20 connected with an output shaft of the telescopic servo motor 19, and a rotating arm part of the rotating arm mechanism comprises an arm sleeve 21, a telescopic arm 23 and a rack 24 axially fixed on the telescopic arm 23; the mounting seat 15 is cuboid, a third rotating shaft hole 16 is formed in one side of the mounting seat 15 along the length direction, a rotating arm hole 17 is formed in the other side of the mounting seat 15 along the height direction, a rack groove 18 is formed in the inner wall of the rotating arm hole 17 along the axial direction, and a rack opening 22 which is communicated with the inside and the outside is formed in the arm sleeve 21 along the axial direction; the mounting seat 15 is sleeved and fixed on a rotating shaft through a rotating arm hole 17, the arm sleeve 21 is sleeved and fixed in the rotating arm hole 17 of the mounting seat 15, the telescopic arm 23 is sleeved in the arm sleeve 21, teeth of a rack 24 fixed on the telescopic arm 23 are exposed from a rack port 22 of the arm sleeve, when the rack 24 is telescopic and passes through the rotating arm hole 17, the teeth of the rack 24 move in a rack groove 18 of the rotating arm hole 17, the telescopic servo motor 19 is mounted on the upper top surface of the mounting seat 15, and teeth of a rack driving gear 20 are meshed with teeth of the rack 24 extending out of the upper top surface of the mounting seat 15. Through the arrangement, the wiring board 33 is actually hung at the end part of the lower end of the telescopic arm 23, the telescopic servo motor 19 drives the telescopic arm 23 to retract, the wiring board 33 can be lifted to a certain height, then the arm sleeve 21 is rotated to enable the wiring board 33 to extend into a cabinet door of the electric cabinet 36, and finally the telescopic arm 23 of the telescopic servo motor 19 is controlled to extend forwards to a required position according to the distance between the wiring board 33 and an installation position in the cabinet. Here, the reason why the telescopic arm 23 is retracted and the wiring board is lifted up by a certain height is that the length of the arm from the lower end of the telescopic arm 23 to the rotating shaft can be greatly shortened, and the driving force required for driving the rotating shaft 11 by the steering servo motor 13 can be greatly reduced according to the lever principle.

The whole telescopic mechanism in the above arrangement comprises the telescopic servo motor 19 which rotates along with the rotating shaft 11, and as can be seen from the arrangement, the telescopic servo motor 19 is located above the rotating shaft 11, when the rotating shaft 11 rotates, the telescopic servo motor 19 descends downwards along with the wiring board 33 lifting upwards from one side of the rotating shaft 11, and as the telescopic servo motor 19 has a certain weight, a certain lifting force can be lifted and shared for the wiring board 33 according to the lever principle, so that the driving force required by the steering servo motor 13 to drive the rotating shaft 11 can be reduced.

As shown in fig. 4 and 5, the suspension 1 has a seat plate 2, a first downward rotating shaft support 7 and a second downward rotating shaft support 8 are respectively arranged at one end and the middle part of the bottom end face of the seat plate 2, a first rotating shaft hole 9 and a second rotating shaft hole 10 of coaxial core wires are respectively arranged at the lower ends of the two rotating shaft supports, one section of one end of the rotating shaft 11 is sleeved in the first rotating shaft hole 9 and the second rotating shaft hole 10, the other end of the rotating shaft 11 extends out of the other side of the second rotating shaft hole 10, the rotating arm mechanism is fixed on the rotating shaft between the first rotating shaft support 7 and the second rotating shaft support 8, and the rotating gear 12 is fixed on the rotating shaft 11 extending out of the other side of the second rotating shaft hole 10.

The distance between the rotating shaft 11 and the bottom end face of the seat plate 2 is required to satisfy the maximum expansion amount of the telescopic arm 23 during expansion.

As shown in fig. 6, the rotating gear 12 is a semicircular gear with a lower portion removed. This is because the rotary gear 12 is also rotated with the rotary shaft 11, and the wheel diameter of the rotary gear 12 is large (according to the lever principle, the larger the wheel diameter of the rotary gear 12 is, the smaller the driving force that needs to be provided by the steering servo motor 13), and heavy, and the function of the rotary gear can be the same as the function of the positioning of the steering servo motor 13, and a certain lift force can be shared for lifting the wiring board 33.

As shown in fig. 1, 2 and 7, a coupling member connected to the telescopic arm 23 is provided at a lower end of the telescopic arm 23, the coupling member includes a lever 25 perpendicular to the telescopic arm 23 and hook members 27 provided at both ends of the lever 25, a sleeve 26 connected to the telescopic arm 23 is provided at a middle portion of the lever 25, an internal thread is provided in the sleeve 26, an external thread is provided at a lower end of the telescopic arm 23, and the lever 25 is connected to the lower end of the telescopic arm 23 by the sleeve 26 through a screw-fit. The lever 25 is provided to simultaneously lift both sides of the upper end of the wiring board 33.

As shown in fig. 8, the hook member 27 is formed by integrally connecting a socket 28 having a socket hole 29 and a pin 30 in a right-angle shape, the pin 30 has a pin hole 31 at a lower end thereof, a pin 32 capable of being pulled out is provided in the pin hole 31, and the two sockets 28 are respectively sleeved on both ends of the ram 25 through the socket holes 29 and are both capable of rotating around the ram 25.

The pin 30 has a semi-cylindrical shape with more than half removed axially. This is because the two holes into which the pins 30 are to be inserted on the wiring board 33 are semicircular holes 35. When the connecting structure is used, the pins 30 at the two ends of the cantilever lever 25 are respectively inserted into the two semicircular holes 35 from the front surface of the wiring board, and then the pins 32 are inserted into the pin holes 31 of the pins 30, so that the cantilever lever 25 is connected with the wiring board 33.

As shown in fig. 1, 3 and 4, the suspension 1 is a carriage with sliders 3 mounted on both sides, a rail frame 5 is arranged above the suspension 1, and linear rails 4 for the suspension 1 to transversely run are arranged on both sides of the rail frame 5. Thus, after the wiring board 33 is lifted into the door of the electrical cabinet, the suspension 1 is pushed to move transversely, and the wiring board 33 is lifted into the door of the next door of the electrical cabinet 36. Pushing the suspension 1 to move laterally also enables lifting the wiring board 33 for the next laterally aligned electrical cabinet 36.

The slide rail frame 5 can be suspended on the ceiling of a workshop through a plurality of mounting columns 6.

As shown in fig. 1, 2 and 10, in a method for mounting a wiring board by lifting and delivering the wiring board from a workbench to an electrical cabinet, a boom member having a length is provided at a boom mechanism in front of a doorway of the electrical cabinet 36, and the upper end of the wiring board lying on the workbench is hooked downward from the lower end of the boom member, and then the boom member is driven to rotate, so that the lower end of the boom member facing downward rotates from the lower end to the upper end and toward the electrical cabinet, and the wiring board is lifted from the workbench upward and delivered into the electrical cabinet. The principle is that the arm part is arranged with a certain length, and when the arm part is rotated to a horizontal state, the wiring board 33 is extended by the length of one arm part directly into the cabinet door of the electrical cabinet 36. By the method, the wiring board is lifted from the wiring operation platform, erected, pushed into the electric appliance cabinet and adjusted in height in the cabinet without manual labor, so that the actions can be finished easily, accurately and quickly, and the working efficiency is obviously improved.

The method for hanging and delivering the wiring board from the operation table to the electric cabinet for installation is to arrange the rotating arm part into an arm sleeve 21 with a fixed length and a telescopic arm 23 sleeved in the arm sleeve 21, wherein the lower end of the rotating arm part hooks the upper end of the wiring board, the lower end of the telescopic arm 23 hooks the upper end of the wiring board, the telescopic arm 23 is contracted before the rotating arm part rotates, the upper end of the wiring board is lifted to a certain height, then the rotating arm part is rotated to enable the lower end of the telescopic arm 23 and the hooked wiring board 33 to rotate to the installation height in the door of the electric cabinet 36, and then the telescopic arm 23 is driven to adjust according to the distance between the wiring board 33 and the installation position. The purpose of this is to be able to shorten the length of the boom part when rotating, greatly reducing the driving force that needs to be applied when driving the rotating part.

In the above, the terms "upper" and "lower" in relation to the boom part are described in the state where the telescopic arms 23 of the arm socket 21 of the boom part are vertically faced downward.

The above embodiments are only for the purpose of more clearly describing the invention and should not be considered as limiting the scope of protection covered by the invention, any modification of the equivalent should be considered as falling within the scope of protection covered by the invention.

Claims (10)

1. The utility model provides a hang device of sending the wiring board to installation in the regulator cubicle from the operation platform which characterized in that: the wiring board turning mechanism comprises a suspension (1), a turning mechanism and a rotating arm mechanism, wherein the suspension (1) is installed in front of a door of an electric cabinet (36), the turning mechanism is installed on the suspension (1), the turning mechanism is provided with a rotating shaft (11), the rotating arm mechanism is fixedly installed on the rotating shaft (11) and can rotate along with the rotating shaft (11), the rotating arm mechanism is provided with a rotating arm part, one end of the rotating arm part is installed on the rotating arm mechanism, in use, the other end of the rotating arm part hooks the upper end of a wiring board (33) downwards, the rotating arm mechanism drives the rotating shaft (11) to rotate, one end of the rotating arm part, which hooks the wiring board (33), from bottom to top and rotates towards the inside of the cabinet door of the electric cabinet (36), and the upper end of the wiring board (33) is lifted forwards and upwards and is sent into the cabinet door of the electric cabinet (36).

2. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 1, wherein: the steering mechanism further comprises a steering servo motor (13) and a steering driving gear (14) connected with an output shaft of the steering servo motor (13), a rotating gear (12) is arranged at one end of the rotating shaft (11), and the steering driving gear (14) is meshed with the rotating gear (12).

3. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 2, wherein: the rotating arm mechanism further comprises a mounting seat (15), a telescopic servo motor (19) and a rack driving gear (20) connected with an output shaft of the telescopic servo motor (19), and a rotating arm part of the rotating arm mechanism comprises an arm sleeve (21), a telescopic arm (23) and a rack (24) axially fixed on the telescopic arm (23); the mounting seat (15) is rectangular, a third rotating shaft hole (16) is formed in one side of the mounting seat (15) along the length direction, a rotating arm hole (17) is formed in the other side of the mounting seat (15) along the height direction, a rack groove (18) is formed in the inner wall of the rotating arm hole (17) along the axial direction, and a rack opening (22) which is communicated with the inside and the outside is formed in the arm sleeve (21) along the axial direction; the mounting seat (15) is sleeved and fixed on a rotating shaft through a rotating arm hole (17), an arm sleeve (21) is sleeved and fixed in the rotating arm hole (17) of the mounting seat (15), a telescopic arm (23) is sleeved in the arm sleeve (21), teeth of a rack (24) fixed on the telescopic arm (23) are exposed from a rack opening (22) of the arm sleeve and move in a rack groove (18) of the rotating arm hole (17) when the rack (24) stretches and retracts through the rotating arm hole (17), a telescopic servo motor (19) is mounted on the upper top surface of the mounting seat (15), and teeth of a rack driving gear (20) are meshed with teeth of a rack (24) extending out of the upper top surface of the mounting seat (15).

4. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 3, wherein: the suspension has bedplate (2), is equipped with decurrent pivot support (7) and pivot support two (8) respectively in the one end and the middle part of bedplate (2) bottom face, and the lower extreme of two pivot supports is equipped with pivot hole one (9) and the pivot hole two (10) of coaxial heart yearn respectively, one section cover of the one end of pivot (11) is in pivot hole one (9) and pivot hole two (10), and the other end stretches out from the opposite side of pivot hole two (10), rocking arm mechanism fixes in the pivot between pivot support one (7) and pivot support two (8), running gear (12) are fixed in the pivot of stretching out from the opposite side of pivot hole two (10).

5. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 4, wherein: a distance is arranged between the rotating shaft (11) and the bottom end face of the seat plate (2), and the size of the distance meets the maximum telescopic amount of the telescopic arm (23) during telescopic.

6. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 4, wherein: the rotating gear (12) is a semicircular gear with a lower part removed.

7. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 3, wherein: the lower extreme of flexible arm (23) is equipped with the even parts of hanging of being connected with flexible arm (23), even parts of hanging include with flexible arm (23) vertically ram (25) with establish the hook piece at ram (25) both ends, the middle part of ram (25) has sleeve (26) of being connected with flexible arm (23), has the internal thread in sleeve (26), the lower extreme of flexible arm (23) has the external screw thread, ram (25) utilize sleeve (26) to be connected through screw-thread fit with the lower extreme of flexible arm (23).

8. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 7, wherein: the hook is formed by integrally connecting a sleeve seat (28) with sleeve holes (29) and a pin (30) in a right-angle shape, the lower end of the pin (30) is provided with a pin hole (31), a pin (32) capable of being pulled out is arranged in the pin hole (31), the two sleeve seats (28) are respectively sleeved at two ends of a ram (25) through the sleeve holes (29) and can rotate around the ram (25) so as to adapt to angle change between the wiring board and a telescopic arm (23) when the wiring board (33) is lifted.

9. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to claim 8, wherein: the pin (30) is semi-cylindrical with more than half removed axially.

10. The apparatus for lifting a wiring board from a work table to be mounted in an electrical cabinet according to any one of claims 1 to 9, wherein: the suspension (1) is a sliding frame with sliding blocks (3) arranged on two sides, a sliding rail frame (5) is arranged above the suspension (1), and linear sliding rails (4) for the suspension (1) to transversely run are arranged on two sides of the sliding rail frame (5).

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