CN209251931U - A kind of English alphabet writes exercise device repeatedly - Google Patents

Abstract

The utility model relates to English teaching aid technical fields, it in particular is that a kind of English alphabet writes exercise device repeatedly, including firm banking, linkage part and cleaning device, the upper end that letter hangs patch is fixed between clamping plate and side plate, the lower end that letter hangs patch is fixed between stripper plate and side plate, the present apparatus can hang the difference of patch size according to letter and adjust, rotational lead screw II just adjusts the position of clamping plate, to which the letter for adapting to of different sizes hangs patch, child grows up quickly, height can increase quickly, according to the difference of child's height, turning gear wheel shaft, gear shaft drives helical gear I rotation by helical gear II, helical gear I drives rotating nut rotation, the rotating nut of rotation drives desktop to move up and down by lead screw I, to be suitable for the different child of height.

Description

A kind of English alphabet writes exercise device repeatedly

Technical field

The utility model relates to English teaching aid technical fields, are in particular that a kind of English alphabet writes practice dress repeatedly It sets.

Background technique

There are the English words memory practicing device of a Patent No. CN201720136278.0, including several letters now Block group, a practice box, each alphablock group are made of 7 cube-shaped alphablocks, carve respectively on four sides of each alphablock There is different English alphabets, be equipped with one layer of magnetosphere on another two side, seven alphablocks of each alphablock group contain 26 A different English alphabet；Practicing box includes box body and box cover, and a demarcation plate being alongst distributed is fixed in box body, The inner cavity of box body is divided into a parking space and a practice space, and the width of parking space is greater than 2 times of alphablock width, deposits One layer of irony layer is equipped between emptying on bottom surface, practices both ends in space and slidably connects a stripper plate, both ends stripper plate respectively Between form spelling gap, stripper plate is fixedly connected on by adjustable spring to be practiced on the corresponding inner sidewall of box.But this is practical new Type cannot be gone up and down according to the height of user, also be not easy to letter be hung patch fixation.

Summary of the invention

The utility model relates to English teaching aid technical fields, are in particular that a kind of English alphabet writes practice dress repeatedly It sets, including the fixed device in base fixture, lifting desk surface and upper end, the present apparatus can be adjusted with the growth of the height of child The height of whole desktop, and the height adjustment on four sides is to synchronize to rise or fall, it is convenient and efficient, it is solid patch can also to be hung to letter It is fixed, allow child while letter is seen on side, and write practice repeatedly on desktop.

The base fixture include fixed plate, connecting cylinder, bearing, rotating nut, helical gear I, bearing block I, Gear shaft, helical gear II, chamber, supporting leg and fixing bolt are slided, is fixedly connected with connecting cylinder, connecting cylinder and bearing in fixed plate Inner ring be fixedly connected, the lower end of rotating nut is fixedly connected with the outer ring of bearing, and helical gear is fixedly connected on rotating nut I is fixedly connected in fixed plate there are two bearing block I, and the both ends of gear shaft are rotatablely connected with two bearing block I respectively, gear shaft Right end be fixedly connected with helical gear II, helical gear II and helical gear I engaged transmission, on four angles of fixed plate upper and lower ends point It is not fixedly connected with sliding chamber and supporting leg, fixing bolt is connected through a screw thread with rotating nut；

The lifting desk surface includes desktop, lead screw I and traveller I, and the center of desktop lower surface is fixedly connected with silk Thick stick I is fixedly connected to traveller I on four angles of desktop lower surface, and lead screw I is connect with rotating nut by screw-driven, It is intracavitary that four traveller I are slidably connected at four cunnings respectively；

The fixed device in the upper end include side plate, limit slideway, bearing block II, lead screw II, spacing block set, loading plate, Slide plate, traveller II, clamping plate, hoistway, lifting convex block and spring, side plate are fixedly connected with desktop, are arranged on side plate limited Position slideway, the upper end for limiting slideway are fixedly connected with bearing block II, and lead screw II, loading plate and limit are rotatably connected on bearing block II Position convex block is fixedly connected, and spacing block set is slidably connected in limit slideway and with lead screw II by connecting in screw thread, on loading plate Setting is fixedly connected there are two convex block is gone up and down, two lifting convex blocks are slidably connected at two respectively there are two hoistway on clamping plate In a hoistway, the rear end of loading plate is fixedly connected with slide plate, and traveller II is slidably connected on slide plate, and traveller II and clamping plate are solid It is fixed to connect, it is inserted with spring on traveller II, spring is between slide plate and clamping plate.

As advanced optimizing for the technical program, a kind of English alphabet of the utility model is write repeatedly described in exercise device The fixed device in upper end further include sliding slot and slide opening, the lower end of side plate is provided with sliding slot and slide opening；

The fixing lower includes supporting plate, plate, stripper plate, traveller III and tension spring, is fixedly connected on supporting plate Plate and stripper plate, plate are slidably connected in sliding slot, and traveller III is fixedly connected with supporting plate, and traveller III is slidably connected at slide opening It is interior, tension spring is cased on traveller III, the left and right ends of tension spring are fixedly connected with side plate and supporting plate respectively.

As advanced optimizing for the technical program, a kind of English alphabet of the utility model is write repeatedly described in exercise device Limit component include vertical bar and cross bar, cross bar is fixedly connected on vertical bar, there are two the limit component settings, and two are perpendicular Item is respectively fixedly connected in the left and right ends of fixed plate.

As advanced optimizing for the technical program, a kind of English alphabet of the utility model is write repeatedly described in exercise device Base fixture further include rocking bar, rocking bar is fixedly connected on the left end of gear shaft.

As advanced optimizing for the technical program, a kind of English alphabet of the utility model is write repeatedly described in exercise device The fixed device in upper end further include handle and knob, handle is fixedly connected on the upper end of lead screw II, and knob is fixedly connected on traveller The rear end of II.

As advanced optimizing for the technical program, a kind of English alphabet of the utility model is write repeatedly described in exercise device Fixing lower further include limit annulus, limit annulus is fixedly connected on the front end of traveller III.

A kind of English alphabet of the utility model writes having the beneficial effect that for exercise device repeatedly

The upper end that letter hangs patch is fixed between clamping plate and side plate, the lower end that letter hangs patch is fixed on stripper plate and side Between plate, the present apparatus can hang the difference of patch size according to letter and adjust, and rotational lead screw II just adjusts the position of clamping plate, Patch is hung to adapt to letter of different sizes, child grows up quickly, and height can increase quickly, not according to child's height Together, turning gear wheel shaft, gear shaft drive helical gear I rotation by helical gear II, and helical gear I drives rotating nut rotation, rotation Rotating nut drive desktop to move up and down by lead screw I, to be suitable for the different child of height.

Detailed description of the invention

The utility model is described in more detail with specific implementation method with reference to the accompanying drawing.

Fig. 1 is the structural schematic diagram that a kind of English alphabet of the utility model writes exercise device repeatedly；

Fig. 2 is base fixture structural schematic diagram；

Fig. 3 is base fixture partial structure diagram；

Fig. 4 is lifting desk surface structural schematic diagram；

Fig. 5 is upper end fixture structure schematic diagram；

Fig. 6 is the fixed device partial structure diagram one in upper end；

Fig. 7 is the fixed device partial structure diagram two in upper end；

Fig. 8 is fixing lower structural schematic diagram；

Fig. 9 is fixing lower partial structure diagram.

In figure: base fixture 1；Fixed plate 1-1；Connecting cylinder 1-2；Bearing 1-3；Rotating nut 1-4；Helical gear I1-5；Bearing block I1-6；Gear shaft 1-7；Helical gear II1-8；Sliding chamber 1-9；Supporting leg 1-10；Rocking bar 1-11；Fixing bolt 1-12； Lifting desk surface 2；Desktop 2-1；Lead screw I2-2；Traveller I2-3；Device 3 is fixed in upper end；Side plate 3-1；Limit slideway 3-2；Bearing Seat II3-3；Lead screw II3-4；Spacing block set 3-5；Loading plate 3-6；Slide plate 3-7；Traveller II3-8；Clamping plate 3-9；Hoistway 3- 10；Go up and down convex block 3-11；Spring 3-12；Sliding slot 3-13；Slide opening 3-14；Handle 3-15；Shake hands 3-16；Fixing lower 4；Support Plate 4-1；Plate 4-2；Stripper plate 4-3；Traveller III4-4；Tension spring 4-5；Limit annulus 4-6；Limit component 5；Vertical bar 5-1；Cross bar 5-2。

Specific embodiment

Specific embodiment 1:

Illustrate present embodiment below with reference to Fig. 1-9, the utility model relates to ground cleaning technology fields, in particular It is that a kind of English alphabet writes exercise device, including firm banking 1, linkage part 2 and cleaning device 3 repeatedly, letter is hung patch Upper end be fixed between clamping plate 3-9 and side plate 3-1, letter hang patch lower end be fixed on stripper plate 4-3 and side plate 3-1 it Between, the present apparatus can hang the difference of patch size according to letter and adjust, and rotational lead screw II3-4 just adjusts the position of clamping plate 3-9 It sets, so that adapting to letter of different sizes hangs patch, child grows up quickly, and height can increase quickly, according to child's height Difference, turning gear wheel shaft 1-7, gear shaft 1-7 drive helical gear I1-5 rotation by helical gear II1-8, and helical gear I1-5 drives The rotating nut 1-4 of rotating nut 1-4 rotation, rotation drives desktop 2-1 to move up and down by lead screw I2-2, to be suitable for The different child of height；

The base fixture 1 includes fixed plate 1-1, connecting cylinder 1-2, bearing 1-3, rotating nut 1-4, helical teeth Take turns I1-5, bearing block I1-6, gear shaft 1-7, helical gear II1-8, sliding chamber 1-9, supporting leg 1-10 and fixing bolt 1-12, fixed plate 1-1 plays the role of bearer connection, and connecting cylinder 1-2 is fixedly connected on fixed plate 1-1, and connecting cylinder 1-2 can give bearing 1-3 provides a fixed space, and connecting cylinder 1-2 is fixedly connected with the inner ring of bearing 1-3, and bearing 1-3 can give rotation spiral shell Female 1-4 limit, rotating nut 1-4 can only be rotated around the axis of itself, the lower end of rotating nut 1-4 and the outer ring of bearing 1-3 It is fixedly connected, the rotating nut 1-4 of rotation can drive lead screw I2-2 to move up and down, and be fixedly connected on rotating nut 1-4 tiltedly Gear I1-5, helical gear I1-5 can drive rotating nut 1-4 to rotate, and be fixedly connected with that there are two bearing block I1- on fixed plate 1-1 6, two bearing block I1-6 can be limited to gear shaft 1-7, and gear shaft 1-7 can only be rotated around the axis of itself, can also allow Gear shaft 1-7 is rotated more stable, and the both ends of gear shaft 1-7 are rotatablely connected with two bearing block I1-6 respectively, and gear shaft 1-7 can To drive helical gear II1-8 to rotate, the right end of gear shaft 1-7 is fixedly connected with helical gear II1-8, and helical gear II1-8 can band Dynamic helical gear I1-5 is rotated, helical gear II1-8 and helical gear I1-5 engaged transmission, on four angles of fixed plate 1-1 upper and lower ends It is respectively fixedly connected with sliding chamber 1-9 and supporting leg 1-10, sliding chamber 1-9 can provide the space of a sliding, supporting leg to traveller I2-3 The lower end of 1-10 is pasted with rubber pad, in this way increasing frictional force, will not generate sliding, fixing bolt 1-12 and rotating nut 1-4 It is connected through a screw thread, the front end of fixing bolt 1-12 is pasted with rubber, and when rubber and lead screw I2-2 are contacted, lead screw I2-2 is just not It can be rotated in rotating nut 1-4, the fixation of desktop 2-1 has been achieved；It can be made by rotary fixing screw bolt 1-12 Rubber is contacted or is separated with lead screw I2-2.

The lifting desk surface 2 includes desktop 2-1, lead screw I2-2 and traveller I2-3, and child can be on desktop 2-1 The literary style of letter is repeated, the center of the lower surface desktop 2-1 is fixedly connected with lead screw I2-2, and lead screw I2-2 can drive table Panel 2-1 is moved up and down, and traveller I2-3, lead screw I2-2 and rotation are fixedly connected on four angles of the lower surface desktop 2-1 Nut 1-4 is connected by screw-driven, and four traveller I2-3 are slidably connected at respectively in four sliding chamber 1-9, as four traveller I2- 3 when being slidably connected in four sliding chamber 1-9 respectively, and desktop 2-1 will be limited, desktop 2-1 at this moment can only on move down Dynamic, for the present apparatus when lead screw I2-2 is gone up and down, lead screw I2-2 can drive four traveller I2-3 to slide in four sliding chamber 1-9 simultaneously, Desktop 2-1 in this way would not can save the time of adjustment desktop 2-1 there is a phenomenon where injustice in this way；

The fixed device 3 in the upper end includes side plate 3-1, limit slideway 3-2, bearing block II3-3, lead screw II3-4, limit Convex block 3-5, loading plate 3-6, slide plate 3-7, traveller II3-8, clamping plate 3-9, hoistway 3-10, lifting convex block 3-11 and spring 3- 12, side plate 3-1 is fixedly connected with desktop 2-1, and side plate 3-1 plays the role of bearer connection, and limit is provided on side plate 3-1 and is slided Road 3-2, limit slideway 3-2 can provide a fixed space to bearing block II3-3, can also provide to spacing block set 3-5 The upper end in the space of one sliding, limit slideway 3-2 is fixedly connected with bearing block II3-3, and bearing block II3-3 can give lead screw II3-4 limit, lead screw II3-4 can only be rotated around the axis of itself, lead screw II3-4 is rotatably connected on bearing block II3-3, turns Dynamic lead screw II3-4 can drive spacing block set 3-5 to move up and down in limit slideway 3-2, loading plate 3-6 and spacing block set 3- 5 are fixedly connected, and loading plate 3-6 plays the role of bearer connection, spacing block set 3-5 be slidably connected in limit slideway 3-2 and with Lead screw II3-4 is by connection in screw thread, and when spacing block set 3-5 is slidably connected in limit slideway 3-2, loading plate 3-6 will It is limited, loading plate 3-6 at this moment can only be moved up and down, and there are two hoistway 3-10, hoistways for setting on loading plate 3-6 3-10 can give lifting convex block 3-11 to provide the space of a sliding, be fixedly connected on clamping plate 3-9 there are two lifting convex block 3-11, Clamping plate 3-9 can fix the upper end that English hangs patch, and two lifting convex block 3-11 are slidably connected at two hoistway 3- respectively In 10, when two lifting convex block 3-11 are slidably connected at respectively in two hoistway 3-10, clamping plate 3-9 is limited, at this moment It can only be moved forward and backward, the rear end of loading plate 3-6 is fixedly connected with slide plate 3-7, and slide plate 3-7 can provide a cunning to slide plate 3-7 Dynamic space slidably connects traveller II3-8 on slide plate 3-7, and traveller II3-8 is fixedly connected with clamping plate 3-9, on traveller II3-8 It is inserted with spring 3-12, spring 3-12 utilizes the elastic potential energy of spring 3-12, spring 3-12 between slide plate 3-7 and clamping plate 3-9 Rear end limited by slide plate 3-7, spring 3-12 will head on clamping plate 3-9 and side plate 3-1 and fit together.

Specific embodiment 2:

Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment one described The fixed device 3 in upper end further includes sliding slot 3-13 and slide opening 3-14, and the lower end of side plate 3-1 is provided with sliding slot 3-13 and slide opening 3-14, Sliding slot 3-13 can provide the space of a sliding to plate 4-2, and slide opening 3-14 can provide a sliding to traveller III4-4 Space；

The fixing lower 4 includes supporting plate 4-1, plate 4-2, stripper plate 4-3, traveller III4-4 and tension spring 4-5, It is fixedly connected with plate 4-2 and stripper plate 4-3 on supporting plate 4-1, the lower end that letter hangs patch can be fixed on stripper plate 4-3 and side Between plate 3-1, plate 4-2 is slidably connected in sliding slot 3-13, when plate 4-2 is slidably connected in sliding slot 3-13, supporting plate 4-1 It will be limited, supporting plate 4-1 at this moment can only slide back and forth, and traveller III4-4 is fixedly connected with supporting plate 4-1, and traveller III4-4 is sliding It is dynamic to be connected in slide opening 3-14, be cased with tension spring 4-5 on traveller III4-4, the left and right ends of tension spring 4-5 respectively with side plate 3-1 and support Plate 4-1 is fixedly connected, and using the pulling force of tension spring 4-5, tension spring 4-5 can drive supporting plate 4-1 to move backward to drive stripper plate 4-3 fits together with side plate 3-1, realizes that letter hangs the fixation of patch.

Specific embodiment 3:

Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment one described Limit component 5 includes vertical bar 5-1 and cross bar 5-2, and cross bar 5-2 is fixedly connected on vertical bar 5-1, and the limit component 5 is arranged There are two, two vertical bar 5-1 are respectively fixedly connected in the left and right ends of fixed plate 1-1, although the present apparatus can be gone up and down, It is to rise and have the limit, when desktop 2-1 and two cross bar 5-2 is contacted, the present apparatus cannot move up again, limit Component 5 plays the role of limit.

Specific embodiment 4:

Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment two described Base fixture 1 further includes rocking bar 1-11, and rocking bar 1-11 is fixedly connected on the left end of gear shaft 1-7, and shaking rocking bar 1-11 can It is rotated with easily band movable gear shaft 1-7.

Specific embodiment 5:

Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment two described The fixed device 3 in upper end further includes that handle 3-15 and knob 3-16, handle 3-15 are fixedly connected on the upper end of lead screw II3-4, is rotated Handle 3-15 can easily drive lead screw II3-4 to rotate, and knob 3-16 is fixedly connected on the rear end of traveller II3-8, pull Knob 3-16 can easily drive traveller II3-8 to slide.

Specific embodiment 6:

Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment two described Fixing lower 4 further includes limit annulus 4-6, and limit annulus 4-6 is fixedly connected on the front end of traveller III4-4, limits annulus 4-6 plays the role of limit, prevents traveller III4-4 from slipping away slide opening 3-14.

A kind of English alphabet of the utility model writes the working principle of exercise device repeatedly:

When use device, pull knob 3-16, knob 3-16 that traveller II3-8 is driven to move backward, traveller II3-8 drives folder Plate 3-9 is moved backward, and the upper end that letter hangs patch is put between clamping plate 3-9 and side plate 3-1, the elastic potential of spring 3-12 is utilized Can, the rear end of spring 3-12 is limited by slide plate 3-7, and spring 3-12 will head on clamping plate 3-9 and side plate 3-1 and fit together, this When can letter hang patch upper end be fixed between clamping plate 3-9 and side plate 3-1, forward push traveller III4-4, traveller III4-4 drives stripper plate 4-3 to move backward by supporting plate 4-1, and the lower end that letter hangs patch is put into stripper plate 4-3 and side plate 3-1 Between, using the pulling force of tension spring 4-5, tension spring 4-5 can drive supporting plate 4-1 to move backward to drive stripper plate 4-3 and side plate 3-1 fits together, and the present apparatus can hang the difference of patch size according to letter and adjust, rotational handle 3-15, handle 3- 15 drive lead screw II3-4 rotation, and the lead screw II3-4 of rotation adjusts the position of clamping plate 3-9 by spacing block set 3-5, to adapt to Letter of different sizes hangs patch, and child grows up quickly, and height can increase quickly, and according to the difference of child's height, rotation is solid Determine bolt 1-12, fixing bolt 1-12 is allowed not contact with lead screw I2-2, shakes rocking bar 1-11, rocking bar 1-11 band movable gear shaft 1-7 It is rotated on two bearing block I1-6, helical gear II1-8 and helical gear I1-5 engaged transmission, gear shaft 1-7 pass through helical gear II1-8 drives helical gear I1-5 rotation, and helical gear I1-5 is fixedly connected on rotating nut 1-4, and helical gear I1-5 drives rotation Nut 1-4 rotation, thick stick I2-2 are connect with rotating nut 1-4 by screw-driven, and the rotating nut 1-4 of rotation passes through lead screw I2-2 Desktop 2-1 is driven to move up and down, to be suitable for the different child of height, when desktop 2-1 is adjusted to suitable height Afterwards, fixing bolt 1-12 is rotated, fixing bolt 1-12 is allowed to contact with lead screw I2-2, lead screw I2-2 at this moment would not be in rotation spiral shell Rotation, has been achieved the fixation of desktop 2-1 in female 1-4.

Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to In the protection scope of the utility model.

Claims (6)

1. a kind of English alphabet writes exercise device repeatedly, including base fixture (1), lifting desk surface (2) and upper end are fixed Device (3), it is characterised in that: the base fixture (1) includes fixed plate (1-1), connecting cylinder (1-2), bearing (1- 3), rotating nut (1-4), helical gear I (1-5), bearing block I (1-6), gear shaft (1-7), helical gear II (1-8), sliding chamber (1- 9), supporting leg (1-10) and fixing bolt (1-12) are fixedly connected with connecting cylinder (1-2), connecting cylinder in fixed plate (1-1) (1-2) is fixedly connected with the inner ring of bearing (1-3), and the lower end of rotating nut (1-4) is fixedly connected with the outer ring of bearing (1-3), It is fixedly connected with helical gear I (1-5), is fixedly connected in fixed plate (1-1) there are two bearing block I (1- on rotating nut (1-4) 6), the both ends of gear shaft (1-7) are rotatablely connected with two bearing block I (1-6) respectively, and the right end of gear shaft (1-7) is fixedly connected Have helical gear II (1-8), helical gear II (1-8) and helical gear I (1-5) engaged transmission, four of fixed plate (1-1) upper and lower ends Sliding chamber (1-9) and supporting leg (1-10) are respectively fixedly connected on angle, fixing bolt (1-12) and rotating nut (1-4) pass through screw thread Connection；

The lifting desk surface (2) includes desktop (2-1), lead screw I (2-2) and traveller I (2-3), the lower surface desktop (2-1) Center be fixedly connected with lead screw I (2-2), be fixedly connected to traveller I (2-3) on four angles of the lower surface desktop (2-1), Lead screw I (2-2) is connect with rotating nut (1-4) by screw-driven, and four traveller I (2-3) are slidably connected at four cunnings respectively In chamber (1-9)；

The upper end fixed device (3) includes side plate (3-1), limit slideway (3-2), bearing block II (3-3), lead screw II (3- 4), spacing block set (3-5), loading plate (3-6), slide plate (3-7), traveller II (3-8), clamping plate (3-9), hoistway (3-10), Lifting convex block (3-11) and spring (3-12), side plate (3-1) are fixedly connected with desktop (2-1), are arranged on side plate (3-1) limited The upper end of position slideway (3-2), limit slideway (3-2) is fixedly connected with bearing block II (3-3), the company of rotation on bearing block II (3-3) It is connected to lead screw II (3-4), loading plate (3-6) is fixedly connected with spacing block set (3-5), and spacing block set (3-5) is slidably connected at limit By connecting in screw thread in position slideway (3-2) and with lead screw II (3-4), there are two hoistway (3- for setting on loading plate (3-6) 10) it, is fixedly connected on clamping plate (3-9) there are two convex block (3-11) is gone up and down, two lifting convex blocks (3-11) are slidably connected at respectively In two hoistways (3-10), the rear end of loading plate (3-6) is fixedly connected with slide plate (3-7), is slidably connected on slide plate (3-7) Have traveller II (3-8), traveller II (3-8) is fixedly connected with clamping plate (3-9), and spring (3-12), spring are inserted on traveller II (3-8) (3-12) is located between slide plate (3-7) and clamping plate (3-9).

2. a kind of English alphabet according to claim 1 writes exercise device repeatedly, it is characterised in that: a kind of English words It further includes fixing lower (4) that mother writes exercise device repeatedly, and the upper end fixed device (3) further include sliding slot (3-13) With slide opening (3-14), the lower end of side plate (3-1) is provided with sliding slot (3-13) and slide opening (3-14)；

The fixing lower (4) includes supporting plate (4-1), plate (4-2), stripper plate (4-3), traveller III (4-4) and draws Spring (4-5) is fixedly connected with plate (4-2) and stripper plate (4-3) on supporting plate (4-1), and plate (4-2) is slidably connected at sliding slot In (3-13), traveller III (4-4) is fixedly connected with supporting plate (4-1), and traveller III (4-4) is slidably connected in slide opening (3-14), It is cased on traveller III (4-4) tension spring (4-5), the left and right ends of tension spring (4-5) are fixed with side plate (3-1) and supporting plate (4-1) respectively Connection.

3. a kind of English alphabet according to claim 1 writes exercise device repeatedly, it is characterised in that: a kind of English words It further includes limit component (5) that mother writes exercise device repeatedly, and the limit component (5) includes vertical bar (5-1) and cross bar (5- 2) it, is fixedly connected with cross bar (5-2) on vertical bar (5-1), there are two the limit component (5) settings, two vertical bars (5-1) point It is not fixedly connected on the left and right ends of fixed plate (1-1).

4. a kind of English alphabet according to claim 1 writes exercise device repeatedly, it is characterised in that: the bottom is solid Determining device (1) further includes rocking bar (1-11), and rocking bar (1-11) is fixedly connected on the left end of gear shaft (1-7).

5. a kind of English alphabet according to claim 1 writes exercise device repeatedly, it is characterised in that: the upper end is solid Determining device (3) further includes handle (3-15) and knob (3-16), and handle (3-15) is fixedly connected on the upper end of lead screw II (3-4), Knob (3-16) is fixedly connected on the rear end of traveller II (3-8).

6. a kind of English alphabet according to claim 2 writes exercise device repeatedly, it is characterised in that: the lower end is solid Determining device (4) further includes limit annulus (4-6), and limit annulus (4-6) is fixedly connected on the front end of traveller III (4-4).