CN211130363U

CN211130363U - Novel intelligent easel

Info

Publication number: CN211130363U
Application number: CN201921650720.7U
Authority: CN
Inventors: 刘皓
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-31
Anticipated expiration: 2029-09-30

Abstract

The utility model belongs to the technical field of drawing tools, in particular to a novel intelligent easel, which comprises a seat, a master switch and a frame; seat and back link to each other, back and seat setting are on the seat support arm, the seat support arm is connected with a frame one end, the frame other end links to each other with drawing board support front boom, set up total switch on the frame, drawing board support front boom lower extreme is equipped with the spout, it is equipped with the slide to go up, support arm links to each other with the upset magic block before the drawing board, the upset magic block links to each other with movable drawing board support, the slide has set gradually on the movable drawing board support, movable drawing board holds in the palm, locating plate and movable drawing board clamp link to each other through drawing board clamp tensioning spring, and convenient to carry, high durability and convenient use, make things convenient for the painter, art class drawing.

Description

Novel intelligent easel

Technical Field

The invention belongs to the technical field of drawing tools, and particularly relates to a novel intelligent easel.

Background

The main part of the existing easel is mostly a triangular support frame which is composed of two side supporting legs and a rear supporting leg, an upper transverse connecting rod and a lower transverse connecting rod are connected between the two side supporting legs, a middle supporting leg for erecting a drawing board supporting plate is fixed through the upper transverse connecting rod and the lower transverse connecting rod, the rear supporting leg is connected with the upper part of the middle supporting leg in an angle-adjustable hinged mode through a connecting rod, and the drawing board supporting plate is fixed with the middle supporting leg through a locking block. There are problems in that: the drawing board layer board only has a fixed point and in the centre of drawing board layer board, and the drawing board layer board is unstable, and the drawing board can be unstable when leading to the drawing, can the horizontal hunting. With the continuous development of science and technology, multifunctional easels are also common like bamboo shoots in spring after rain, are convenient to use, can be folded and are convenient to carry, and can be used for outdoor sketching, however, although the cost of the multifunctional easels is increased, the price of the easels is greatly increased, in addition, the multifunctional easels in the prior art, a plurality of easels can only be added with lamps, wheels, storage racks and the like, are still inconvenient to use, and especially when a user needs to allocate and select dyes, the traditional multifunctional easels are particularly clumsy and need to be allocated by the user, so that the multifunctional easels are very inconvenient; in recent years, manual easels and automatic easels are continuously appeared, but due to the fact that the structure and the function are single, not only can the requirements of users in various aspects be not met, but also a great deal of inconvenience is brought to the users.

Disclosure of Invention

In order to solve the technical problem, the invention provides a novel intelligent easel.

The invention provides a novel intelligent easel, which adopts the following technical scheme:

the novel intelligent easel comprises a seat, a main switch and a frame; the key points are that the seat is connected with the backrest, the backrest and the seat are arranged on a seat support arm, the seat support arm is connected with one end of a frame, the other end of the frame is connected with a front support arm of a drawing board frame, a main switch is arranged on the frame, a sliding groove is arranged at the lower end of the front support arm of the drawing board frame, a sliding way is arranged on the front support arm, the front support arm of the drawing board frame is connected with a turnover magic block, the turnover magic block is connected with a movable drawing board frame, the movable drawing board frame is sequentially provided with the sliding way, a movable drawing board support, a positioning plate and a movable drawing board clamp; the turnover magic block is connected with the lifting and retracting rod of the drawing board frame through the lock hook; the lifting and retracting rod of the drawing board frame is connected with one end of a driving rod through a connecting shaft, the other end of the driving rod is connected with one end of a connecting rod, the other end of the connecting rod is connected with one end of a seat folding rod, and the other end of the seat folding rod is connected with a seat backrest; the middle part of the deflector rod is connected with a rear leg strut through a shaft, the rear leg strut is connected with one end of a push rod through a positioning chute, the other end of the push rod is connected with a rear leg, and the rear leg is provided with a caster wheel; the middle part of the drawing board frame lifting and receiving rod is connected with a front supporting leg through a shaft, one end of the front supporting leg is provided with a power circuit box and a front foot, the other end of the front supporting leg is connected with a frame, the front supporting leg is provided with a motor, the motor is connected with a manual magic block through a lead screw, the manual magic block is arranged on the drawing board frame lifting and receiving rod, two sides of the front supporting arm of the drawing board frame are connected with a color box and a tool box through fixing discs arranged on fixing clamps, a turning deflector rod is arranged on the fixing discs, the turning deflector rod is connected with the color box and the tool box turning connecting rod, and the other ends of the; the color box and the tool box are connected with each other in a rotating mode, the upper end of the tool box is connected with the color box and the tool box rotating connecting rod in a rotating mode, the color box and the tool box rotating connecting rod are arranged on the front support arm of the drawing board in a sliding mode, the color box and the tool box rotating connecting rod are connected with the color box and the tool box rotating shifting rod, the other end of the color box and the tool box rotating shifting rod is connected with the overturning magic block, the color box and the tool box are connected with the color box and the tool box rotating sliding rail in a sliding mode, the color box and the tool box sliding rail are arranged.

The fixing clip is provided with a lock catch, and the lock catch is connected with the front support arm of the drawing board frame through a lock handle.

Upset magic block one end be provided with movable drawing board frame, movable drawing board frame one end is provided with the lock shelves and cooperates with the upset magic block, the other end and the pull rod of lock shelves link to each other, the pull rod is connected with drawing board frame lift receiving rod.

The manual magic block comprises a guide cylinder, a mounting hole and a guide wheel, the mounting hole is formed in the side wall surface of the guide cylinder, and the guide cylinder is meshed with two wire pressing blocks with the same structure through a fixed shaft and rear engaging teeth.

The middle of the two wire pressing blocks with the same structure is provided with a spring, one side of the manual magic block is provided with a guide wheel, one end of a manual pull wire penetrates through the pressing surfaces contacted with the two guide wheels to be connected with the wire pressing blocks, and the other end of the manual pull wire is connected with a manual wrench.

The turnover magic block is provided with a lock hook, the lock hook is connected with a drawing board frame lifting and retracting rod, the drawing board frame lifting and retracting rod is rotatably connected with a pull rod, and the pull rod is connected with the lower part of the lock gear.

The movable drawing board frame is connected with one end of the turnover magic block, but is not limited to the turnover mode of the turnover magic block.

The turning magic block can be replaced by a component with the same turning function.

The combination mode of the internal components of the manual magic block can optimize and freely combine according to the functional requirements.

The motor is connected with the manual magic block through a lead screw.

Compared with the related art, the invention has the following technical effects:

the multifunctional folding easel can be manually or automatically used by a user according to the requirements of the user, meanwhile, the manual or automatic switching mode is simple, the operation is easy, the motor design is ingenious, the multifunctional operation can be realized, the working efficiency of the user is effectively improved, the folded easel is smaller and more convenient to carry, the overall structure is more reasonable, and the stability of the easel is also improved.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic structural view of the color box and tool box rotating link, the color box and tool box turning link, and the color box and tool box rotating slide rail;

FIG. 4 is a schematic structural view of the lock catch, the lock handle and the front support arm of the easel;

FIG. 5 is a schematic view of the fixing clip;

FIG. 6 is a schematic structural view of a movable drawing board frame;

FIG. 7 is a schematic diagram showing the positional relationship between the front arm of the easel and the hand wrench;

fig. 8 is a schematic structural view of a manual magic block;

FIG. 9 is a schematic view showing a positional relationship between a guide cylinder and a mounting hole;

FIG. 10 is a schematic view of the easel configuration shown in a standing position in accordance with the present invention;

FIG. 11 is a schematic view of the present invention in a stowed position;

FIG. 12 is a schematic view showing a connection structure of the shift lever and the link;

in the figure: 1 backrest, 2 seats, 3 main switches, 4 frames, 5 easel front arms, 6 chutes, 7 turning magic blocks, 8 movable easel, 9 movable easel clamps, 10 easel clamp tensioning springs, 11 positioning plates, 12 movable easel supports, 13 manual wrenches, 14 color boxes and tool box rotating connecting rods, 15 easel lifting and retracting rods, 16 manual pull wires, 17 manual magic blocks, 18 shift rods, 19 connecting rods, 20 seat folding rods, 21 seat support arms, 22 rear legs, 23 push rods, 24 positioning chutes, 25 rear leg supporting rods, 26 casters, 27 lead screws, 28 motors, 29 front support legs, 30 power circuit boxes, 31 front legs, 32 color boxes, 33 tool boxes, 34 water buckets, 35 color boxes and tool box turning connecting rods, 36 color boxes and tool box rotating slide rails, 37 fixing cards, 38 color boxes and tool box rotating shift rods, 39 latches, 40 lock handles, 41 turning shift rods, 42 fixing disks, 43 pull rods, 44 lock stoppers, 45 latch hooks, 46 connecting shafts, 47 guide cylinders, 48 mounting holes, 49 wire pressing blocks, 50 fixing shafts, 51 springs and 52 guide wheels.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The novel intelligent easel comprises a seat 2, a main switch 3, a frame 4, a seat 2 and a backrest 1, wherein the lower end of the backrest 1 is bent; the backrest 1 and the seat 2 are arranged on a seat support arm 21, the seat support arm 21 is connected with one end of a frame 4, the other end of the frame 4 is connected with a drawing board frame front support arm 5, a main switch 3 is arranged on the frame 4, a sliding groove 6 is arranged at the lower end of the drawing board frame front support arm 5, a sliding way is arranged on the sliding way, the drawing board frame front support arm 5 is connected with a turnover magic block 7, the turnover magic block 7 is connected with a movable drawing board frame 8, a sliding way, a movable drawing board support 12, a positioning plate 11 and a movable drawing board clamp 9 are sequentially arranged on the movable drawing board frame, and the positioning plate 11 and the movable drawing board clamp 9 are connected through; the turnover magic block 7 is connected with the drawing board frame lifting and retracting rod 15 through a lock hook 45; the drawing board frame lifting and retracting rod 15 is connected with one end of a deflector rod 18 through a connecting shaft; the other end of the deflector rod 18 is connected with one end of a connecting rod 19; the other end of the connecting rod 19 is connected with one end of a seat folding rod 20; the other end of the seat folding rod 20 is connected with the seat back 1; the middle part of the deflector rod 18 is connected with a rear leg support rod 25 through a shaft, the rear leg support rod 25 is connected with one end of a push rod 23 through a positioning chute 24, the other end of the push rod 23 is connected with a rear leg 22, and a caster 26 is arranged on the rear leg 22; the middle part of the drawing board frame lifting and receiving rod 15 is connected with a front supporting leg 29 through a shaft, one end of the front supporting leg 29 is provided with a power supply circuit box 30 and a front foot 31, the other end of the front supporting leg 29 is connected with a frame 4, the front supporting leg 29 is provided with a motor 28, the motor 28 is connected with a manual magic block 17 through a lead screw 27, the manual magic block 17 is arranged on the drawing board frame lifting and receiving rod 15, two sides of a drawing board frame front supporting arm 5 are connected with a color box 32 and a tool box 33 through fixing discs 42 arranged on fixing clamps 37, the fixing discs 42 are provided with turnover deflector rods 41, the turnover deflector rods 41 are connected with the color box and a tool box turnover connecting rod 35, and the other ends of the color box and the; the upper ends of the color box 32 and the tool box 33 are rotatably connected with the color box and tool box rotating connecting rod 14, the lower ends of the color box and tool box rotating connecting rod are connected with the color box and tool box rotating slide rail 36 in a sliding mode, the color box and tool box rotating connecting rod 14 is arranged on the front support arm 5 of the drawing board in a sliding mode, the color box and tool box rotating connecting rod 14 is connected with the color box and tool box rotating shifting rod 38, and the other end of the color box and tool box rotating shifting rod 38 is connected with the overturning magic block 7.

The top end of the easel lifting and retracting rod 15 is provided with a manual wrench 13 in an extending mode, the manual wrench 13 is connected with a manual pull wire 16, the other end of the manual pull wire 16 is connected with a manual magic block 17, the manual magic block 17 comprises a guide cylinder 47, a mounting hole 48 and a guide wheel 52, the side wall surface of the guide cylinder 47 is provided with the mounting hole 48, the guide cylinder 47 is connected with two wire pressing blocks 49 with the same structure through a fixing shaft 50, the two wire pressing blocks 49 with the same structure are meshed through rear engaging teeth, a spring 51 is arranged between the two wire pressing blocks 49 with the same structure, one side of the manual magic block 17 is provided with the guide wheel 52, the other end of the manual pull wire 16 is connected with the manual wrench 13, the tool box 33 is connected with a water bucket 34, and the water bucket 34; the shift lever 18 is rotatably connected to the rear leg strut 25 via a connecting shaft 46.

The fixing clip 37 is provided with a lock catch 39, and the lock catch 39 is connected with the front support arm 5 of the drawing board frame through a lock handle 40; one end of the turnover magic block 7 is provided with a movable drawing board frame 8, one end of the movable drawing board frame 8 is provided with a lock rail 44 matched with the turnover magic block 7, the other end of the lock rail 44 is connected with a pull rod 43, and the pull rod 43 is connected with a drawing board frame lifting and retracting rod 15; a spring 51 is arranged between the two wire pressing blocks 49 with the same structure, one side of the manual magic block 17 is provided with a guide wheel 52, one end of a manual pull wire 16 penetrates through the pressing surface contacted with the two guide wheels 52 and is connected with the wire pressing blocks 49, and the other end of the manual pull wire 16 is connected with the manual wrench 13; the turning magic block 7 is provided with a locking hook 45, the locking hook 45 is connected with the drawing board frame lifting and retracting rod 15, the drawing board frame lifting and retracting rod 15 is rotatably connected with a pull rod 43, and the pull rod 43 is connected with the lower part of the locking stopper 44.

The movable drawing board frame 8 is connected with one end of the turning magic block 7, but is not limited to the turning mode of the turning magic block 7; the overturning magic block 7 can be replaced by a component with the same overturning function; the combination mode of the internal components of the manual magic block 17 can be optimized and freely combined according to the functional requirements; the motor 28 is connected with the manual magic block 17 through the lead screw 27.

A first automatic sitting start procedure: when the multifunctional folding seat is used, the sitting key on the main switch 3 is pressed, the motor 28 supplies power through the computer board of the power circuit box 30, the screw rod 27 is driven to rotate reversely, the manual magic block 17 moves towards the motor 28, when the manual magic block 17 moves towards the motor 28, the drawing board frame lifting and retracting rod 15 is driven, the shaft point on the front supporting leg 29 is overturned, the overturning magic block 7 is overturned due to the change of the angle, and the movable drawing board frame 8 is driven to change the angle and open; when the turning magic block 7 rotates, the connected color box and tool box rotating deflector rod 38 is matched, so that the color box and tool box rotating connecting rod 14 is displaced along the front support arm 5 of the drawing board frame, the color box and tool box rotating connecting rod 14 is pushed to move towards the frame 4, and the color box 32 and the tool box 33 are driven to change the angle along the color box and tool box rotating slide rail 36 until the color box and tool box are completely unfolded; when the drawing board frame lifting and retracting rod 15 is turned over, the driving rod 18 is driven, the driving rod 18 enables the rear leg supporting rod 25 to be opened along the axial point on the rear leg 22 under the action of the positioning sliding groove 24, and due to the fact that the driving rod 18 and the rear leg supporting rod 25 are synchronous, the connecting rod 19 drives the seat folding rod 20 to be changed in angle along the axial point on the rear leg 22 under the action of the driving rod 18, the bottom on the backrest 1 is linked, the seat folding rod is opened and positioned, and the whole seat folding device is opened completely.

A second automatic stand-up start-up procedure: when the stand type key on the main switch 3 is pressed in use, firstly, after the whole easel is in a sitting state, the motor 28 does not stop working and continues to rotate reversely, the lead screw 27 drives the manual magic block 17 to continue moving downwards, at this time, the angle between the push rod 23 and the rear leg support rod 25 is changed, and the push rod 23 drives the positioning chute 24 to move towards the rear leg 22; the deflector rod 18 is separated from the control of the positioning chute 24 and rotates along the crossed axial point of the rear leg strut 25, one end of the connecting rod 19 is lifted, when the connecting rod 19 is lifted, the angle of the seat folding rod 20 is changed, the bottom foot of the backrest 1 is supported, and the backrest 1 is folded; when the drawing board frame lifting and retracting rod 15 is turned, the upper chute 6 on the pull rod 43 is driven to be straightened and moved backwards, and the lock catch 44 is opened to enable the movable drawing board frame 8 to rotate along the axial point on the turning magic block 7 until the front support arm 5 of the drawing board frame is parallel to a plane; when the drawing board frame lifting and retracting rod 15 moves downwards, the angle between the front support arm 5 and the front support leg 29 of the drawing board frame is pushed to be increased along the sliding chute 6; the included angle between the drawing board frame lifting and retracting rod 15 and the connecting rod 19 is reduced simultaneously; thus, the whole easel becomes a stable state close to the vertical state; meanwhile, the color box 32 and the tool box 33 form a large included angle with the front support arm 5 of the drawing board frame under the action of the color box and tool box turning connecting rod 35 and the turning deflector rod 41, are parallel to the ground and change along with the size of the drawing board; the movable drawing board support 12, the color box 32 and the tool box 33 can be adjusted in a vertical translation mode at will; the drawing board clamp tensioning spring 10 can fasten the drawing board, and drawing is convenient.

When the automatic sitting type and the automatic standing type are folded, the folding key on the main switch 3 is pressed, the motor 28 rotates forwards, the lead screw 27 drives the manual magic block 17 to push upwards, at the moment, a series of magic blocks rotate in the opposite direction to the opening direction until the magic blocks are combined into a suitcase, and the folding is finished.

The third manual sitting working process: the manual wrench 13 is wrenched, so that the manual pull wire 16 is driven to enable the manual magic block 17 to be guided by the guide wheel 52, the two ends of the wire pressing block 49 are lifted under the meshing action of the rear engaging teeth through the wire pressing blocks 49 on the two sides of the fixed shaft 50, the wire pressing block 49 is separated from the lead screw 27, and the lead screw 27 is not controlled by the wire pressing block 49 and can freely slide up and down in the guide cylinder 47; the movable drawing board frame 8 is opened under the action of gravity, the movable drawing board frame 8 drives the other end of the overturning magic block 7, namely, a certain included angle is formed between the other end of the overturning magic block 7 and the drawing board frame lifting and retracting rod 15 and the front support arm 5 of the drawing board frame, the connecting rod 19 is also driven to change the angle while the drawing board frame lifting and retracting rod 15 changes the angle, the rear leg support rod 25 and the connecting rod 19 are integrated into a whole under the action of the push rod 23 and the positioning sliding groove 24, and the connecting rod 19 enables the folding rod 20 of the seat to change the angle, so that the backrest 1 is overturned; under the action of the turning magic block 7, the color box and tool box rotating rod 38 pushes the color box and tool box rotating connecting rod 14 to displace, so that the color box 32 and the tool box 33 are rotated and unfolded until the opening is completed.

The fourth manual standing type working process comprises the following steps: in the sitting state, the drawing board frame lifting and retracting rod 15 is pushed to one side of the front support arm 5 of the drawing board frame to move downwards along the upper sliding groove 6, and the pull rod 43 is driven to straighten and displace, so that the locking point of the lock stop 44 is opened to separate from the overturning magic block 7, and the lower end of the movable drawing board frame 8 is driven to rotate along the axial point of the overturning magic block 7 until the movable drawing board frame 8 and the front support arm 5 of the drawing board frame are unfolded in parallel until the end.

Manual retraction: in the vertical state, one end of a movable drawing board clamp 9 of a movable drawing board frame 8 is pulled by fingers to approach the front support arm 5 of the drawing board frame, and the drawing board frame is in a sitting mode under the action of linkage; meanwhile, the top end of the backrest 1 is pulled to approach the seat support arm 21 by the other hand, at this time, the color box 32 and the tool box 33 are also rotated and reset under the pushing of the turnover magic block 7, and the color box 32 and the tool box 33 are parallel to the front support arm 5 of the drawing board frame through the turnover connecting rod 35 of the color box and the tool box until the folding is completed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A novel intelligent easel comprises a seat, a master switch and a frame; the movable drawing board frame is characterized in that a seat is connected with a backrest, the backrest and the seat are arranged on a seat support arm, the seat support arm is connected with one end of a frame, the other end of the frame is connected with a front support arm of a drawing board frame, a main switch is arranged on the frame, a sliding groove is arranged at the lower end of the front support arm of the drawing board frame, a sliding way is arranged on the front support arm, the front support arm of the drawing board frame is connected with a turnover magic block, the turnover magic block is connected with a movable drawing board frame, the movable drawing board frame is sequentially provided with the sliding way, a movable drawing board support, a positioning plate; the turnover magic block is connected with the lifting and retracting rod of the drawing board frame through the lock hook; the lifting and retracting rod of the drawing board frame is connected with one end of a driving rod through a connecting shaft, the other end of the driving rod is connected with one end of a connecting rod, the other end of the connecting rod is connected with one end of a seat folding rod, and the other end of the seat folding rod is connected with a seat backrest; the middle part of the deflector rod is connected with a rear leg strut through a shaft, the rear leg strut is connected with one end of a push rod through a positioning chute, the other end of the push rod is connected with a rear leg, and the rear leg is provided with a caster wheel; the middle part of the drawing board frame lifting and receiving rod is connected with a front supporting leg through a shaft, one end of the front supporting leg is provided with a power circuit box and a front foot, the other end of the front supporting leg is connected with a frame, the front supporting leg is provided with a motor, the motor is connected with a manual magic block through a lead screw, the manual magic block is arranged on the drawing board frame lifting and receiving rod, two sides of the front supporting arm of the drawing board frame are connected with a color box and a tool box through fixing discs arranged on fixing clamps, a turning deflector rod is arranged on the fixing discs, the turning deflector rod is connected with the color box and the tool box turning connecting rod, and the other ends of the; the color box and the tool box are connected with each other in a rotating mode, the upper end of the tool box is connected with the color box and the tool box rotating connecting rod in a rotating mode, the color box and the tool box rotating connecting rod are arranged on the front support arm of the drawing board in a sliding mode, the color box and the tool box rotating connecting rod are connected with the color box and the tool box rotating shifting rod, the other end of the color box and the tool box rotating shifting rod is connected with the overturning magic block, the color box and the tool box are connected with the color box and the tool box rotating sliding rail in a sliding mode, the color box and the tool box sliding rail are arranged.

2. A novel intelligent easel according to claim 1, wherein the fixing clip is provided with a lock catch, and the lock catch is connected with the front support arm of the easel bracket through a lock handle.

3. A novel intelligent easel as claimed in claim 1, wherein one end of the flip magic block is provided with a movable easel frame, one end of the movable easel frame is provided with a lock catch to cooperate with the flip magic block, the other end of the lock catch is connected with a pull rod, and the pull rod is connected with the easel lifting and retracting rod.

4. The novel intelligent easel according to claim 1, wherein the manual magic block comprises a guide cylinder, a mounting hole and a guide wheel, the side wall surface of the guide cylinder is provided with the mounting hole, and the guide cylinder is meshed with two wire pressing blocks with the same structure through a fixed shaft through a rear engaging tooth.

5. A novel intelligent easel as claimed in claim 4, wherein a spring is provided between two thread pressing blocks with the same structure, one side of the manual magic block is provided with a guide wheel, one end of the manual pull wire passes through the pressing surface of the two guide wheels and is connected with the thread pressing block, and the other end of the manual pull wire is connected with a manual wrench.

6. A novel intelligent easel as claimed in claim 3, wherein the turning magic block is provided with a locking hook, the locking hook is connected with the easel lifting and retracting rod, the easel lifting and retracting rod is rotatably connected with a pull rod, and the pull rod is connected with the lower part of the locking stopper.

7. A novel intelligent easel according to claim 3, wherein the movable easel bracket is connected to one end of the flip magic block, but not limited to the flip style of the flip magic block.

8. A novel intelligent easel according to claim 7, wherein the flip magic blocks can be replaced with components having the same flip function.

9. A novel intelligent easel according to claim 4, wherein the combination of the internal components of the manual magic blocks can be optimized and freely combined according to the functional requirements.

10. A novel intelligent easel according to claim 1, wherein the motor is connected to the manual magic block through a lead screw.