CN210930442U

CN210930442U - Simple telescopic foot stool

Info

Publication number: CN210930442U
Application number: CN201921637090.XU
Authority: CN
Inventors: 苏致诚
Original assignee: Dongguan Howen Plactic & Metal Products Co ltd
Current assignee: Dongguan Howen Plactic & Metal Products Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-07
Anticipated expiration: 2029-09-29

Abstract

A simple telescopic foot stool comprises a mounting frame, a telescopic rod arranged on the mounting frame and a pedal plate arranged on the telescopic rod. The mounting bracket is installed on the seat, the telescopic link can contract in the mounting bracket from outside to inside, and this running-board not only can overturn and fold up in cushion portion below, and can extend in cushion portion front side by different angles to the bracket. The telescopic foot rest of the utility model not only can be used for telescopic adjustment back and forth and can reflect section sensing difference and real-time sensing pulling concrete position, but also can realize the adjustment of the angle of the pedal plate through simple external rotation, and the adjustment of the rotation angle and the front and back positions can be set with multi-section adjustment according to requirements; thereby enabling the user to better adjust to the most comfortable supporting position according to the user's own needs. Furthermore, the utility model has the advantages of simple structure, easy and simple to handle, the practicality is strong, has stronger popularization meaning.

Description

Simple telescopic foot stool

Technical Field

The utility model relates to the field of furniture, especially, relate to a simple and easy flexible foot rest.

Background art:

in the life of modern people, the chair can not be used for rest, work or entertainment. Along with the increasing living standard of people, the requirement of people on the comfort level of the chair is higher and higher, so that the chair with the foot rest fixedly arranged below the chair seat is available on the market, and the foot rest is provided with the pedal. When people sit on the chair, the feet can be placed on the pedals, so that a more comfortable sitting posture is obtained.

However, the existing foot stool has the following disadvantages: 1. the extension length of the foot rest is fixed and single, and the foot rest cannot be stretched in a sectional manner; 2. when the foot rest needs to be used, the foot rest is usually pulled out from the lower part of the seat, and the pedal plate can be turned over from inside to outside to the upper part and then rotated to the outer side to be in a plane state, so that the use is complicated; 3. the traditional pedal can only be in a plane state when in use, cannot be adjusted in angle, and is not good enough in comfort and flexibility.

The utility model has the following contents:

therefore, the main objective of the present invention is to provide a simple telescopic foot rest to solve the problem that the conventional foot rest is inconvenient to use and the angle of the pedal cannot be adjusted.

In order to achieve the above purpose, the utility model mainly adopts the following technical scheme:

a simple telescopic foot stool comprises a mounting frame, two telescopic rods arranged on the mounting frame, a rotating shaft arranged between the two telescopic rods and a pedal arranged on the rotating shaft; the telescopic rod moves telescopically relative to the mounting frame to extend out of a required length, an outer mounting part is arranged on the inner side surface of the telescopic rod, a first-order boss and a second-order boss are arranged on the inner side surface of the outer mounting part, a plurality of lugs are arranged on the first-order convex end surface outside the second-order boss, a middle groove, a first step groove and a second step groove which are distributed annularly are arranged on the inner side end surface of the second-order boss, a sectional step is arranged on one side surface of the same side of the first step groove and the second step groove, and a guide inclined surface is arranged on the other side surface of the same; the pedal comprises a plate body and an adjusting component, the adjusting component is sleeved on the rotating shaft, and the plate body is arranged on the adjusting component; the adjusting assembly comprises a connecting fluted disc, a steering fluted disc, a pressure spring and a bayonet lock which are sequentially arranged on the rotating shaft from outside to inside, a clamping groove corresponding to the lug is arranged on the end surface of the outer side of the connecting fluted disc, the width of the clamping groove is larger than that of the lug, a plurality of limiting grooves are arranged on the end surface of the inner side of the connecting fluted disc, the inner side walls of the limiting grooves are provided with guiding surfaces in the same direction, and limiting bosses are arranged at the tops of the guiding surfaces; the outer surface of the steering fluted disc is provided with clamping blocks which correspond to the limiting grooves one by one; a first limiting tooth and a second limiting tooth which correspond to the first stepped groove and the second stepped groove are arranged on the outer side end face of the steering fluted disc; the positions of the first limiting teeth and the second limiting teeth, which correspond to the subsection steps, are provided with limiting steps, and the positions, which correspond to the guide inclined planes, are provided with guide surfaces; in addition, the pedal plate is provided with a folding position and an upper sectional use position and a lower sectional use position;

when the pedal is in the folding position, the second limiting tooth is clamped in the limiting groove, and the first limiting tooth is supported on the guide inclined surface of the second stepped groove; when the steering gear is used, the pedal plate is rotated outwards, the pedal plate drives the steering gear disc to move to a lower subsection using position, at the moment, the second limiting tooth is clamped into a subsection step in the second stepped groove, and the first limiting tooth is clamped into the subsection step in the first stepped groove; continuing to rotate upwards to the upper subsection using position, wherein the first limiting tooth is completely clamped into the first stepped groove, and the second limiting tooth is completely clamped into the second stepped groove; continuing to rotate upwards to enable the steering fluted disc to be separated from the first stepped groove and the second stepped groove, clamping blocks of the first steering fluted disc are clamped on the side surfaces of the limiting lugs on the side where the guide surfaces are located, then rotating downwards in the opposite direction, pushing the connecting fluted disc to rotate downwards by the steering fluted disc through the limiting lugs until the lugs stop the connecting fluted disc, and separating the steering fluted disc from the connecting fluted disc; continue to rotate downwards to the folding position.

Further, be equipped with two inner sliding sleeves on the mounting bracket, be equipped with the accent slot hole that extends along the flexible direction of running-board on the inner sliding sleeve, be equipped with the fixed area on the accent slot hole, this fixed area is equipped with a plurality of constant head tanks along its extending direction, be equipped with the locating part on the telescopic link, the locating part can be followed the accent slot hole and removed and block and locate in the constant head tank of demand in order to carry out the flexible regulation of segmentation

Further, the mounting bracket still includes two outer sliding sleeves and connects in a plurality of support frames of two outer sliding sleeves, the inner sliding sleeve is installed in the outer sliding sleeve, and the inner sliding sleeve includes the interior slide sleeve shell that the bisymmetry set up, the slot hole of adjusting a position sets up on interior slide sleeve shell.

Furthermore, the position adjusting long hole comprises a fixing area arranged on one side of the pedal and a moving area far away from one side of the pedal; the upper side and the lower side of the fixed area are both provided with a fixed sheet, and a hole gap is formed between the fixed sheet and the inner side wall of the position adjusting long hole.

Further, the constant head tank sets up in spacing section, still be provided with a plurality of enhancement pieces between stationary blade and the accent slot hole medial surface, the enhancement piece is connected on the stationary blade of accent slot hole inside wall and constant head tank middle part position.

Furthermore, the maximum distance between the corresponding positioning grooves on the two fixing sheets of the limiting section is the same as the distance between the upper side wall and the lower side wall of the moving area; and the distance between other positions between the two fixing sheets is smaller than the distance between the upper side wall and the lower side wall of the moving area.

Further, the plate body comprises a body part, a side plate part arranged on one side of the body part and a connecting piece connected with the body part and the side plate part, inner installation parts are arranged on the body part and the side plate part, installation holes are formed in the inner installation parts, and the rotating shaft penetrates through the two installation holes simultaneously.

Furthermore, three clamping grooves which are circularly distributed and extend from the inside to the outside are arranged on the outer side end face of the mounting hole, and the clamping block on the outer side of the steering gear disc is clamped in the corresponding clamping groove.

Furthermore, the adjusting assembly further comprises a gasket sleeved on the rotating shaft, a fixing groove is formed in one side, away from the steering fluted disc, of the clamping pin, and the gasket is clamped in the fixing groove.

Furthermore, a semi-annular limiting boss and a limiting groove are arranged on the end face of the inner side of the mounting hole, the bayonet lock is clamped in the limiting groove, and the limiting boss limits the bayonet lock.

In summary, the telescopic foot rest of the utility model not only can be used for telescopic adjustment back and forth and embodying section sensing difference and real-time sensing pulling concrete position, but also can realize the adjustment of the angle of the pedal plate through simple external rotation, and the adjustment angle and the back and forth position adjustment can be set with multi-section adjustment according to requirements; thereby enabling the user to better adjust to the most comfortable supporting position according to the user's own needs. Furthermore, the utility model has the advantages of simple structure, easy and simple to handle, the practicality is strong, has stronger popularization meaning.

Drawings

FIG. 1 is a schematic view showing three states of the simple telescopic leg of the present invention mounted on a seat;

FIG. 2 is a schematic view of the stand of FIG. 1;

FIG. 3 is an exploded view of the stand of FIG. 2;

FIG. 4 is a schematic structural view of the inner sliding sleeve in FIG. 3;

FIG. 5 is a schematic view of the pedal and the retractable rod shown in FIG. 3;

FIG. 6 is a schematic view of the rear structure of the foot pedal and the telescopic rod shown in FIG. 5;

FIG. 7 is an exploded view of the foot pedal and the telescoping rod of FIG. 5;

FIG. 8 is a schematic structural view of the outer mounting portion of the extension pole of FIG. 7;

FIG. 9 is a structural view of the connecting chainring of FIG. 7;

FIG. 10 is a schematic view of the steering chainring of FIG. 7;

FIG. 11 is a schematic view showing the installation relationship between the steering gear and the connecting gear when the pedal is not in use, but in both use states;

fig. 12 is a schematic sectional view of the installation position of the pedal and the telescopic rod in fig. 5.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 12, the present invention provides a seat with a simple telescopic leg, which comprises a main body 10, a cushion part 20 mounted on the main body, and a telescopic leg mounted under the cushion part 20. The telescopic horse comprises a mounting frame 30, a telescopic rod 40 arranged on the mounting frame 30 and a pedal plate 50 arranged on the telescopic rod 40. The mounting frame 30 is installed on the bottom surface of the cushion portion 20, the retractable rod 40 can be retracted into the mounting frame 30 from the outside to the inside, and the pedal plate 50 can be folded under the cushion portion 20 in a rotatable manner and can be extended to the front side of the cushion portion 20 at different angles, so as to support the feet.

The mounting frame 30 includes two outer sliding sleeves 31, a plurality of support frames 32 connected to the two outer sliding sleeves 31, and an inner sliding sleeve 33 installed inside the outer sliding sleeve 31. The support frame 32 is installed below the cushion part 20. The outer sliding sleeve 31 is in a hollow tubular shape, and the two outer sliding sleeves 31 are in parallel arrangement. The inner sliding sleeve 33 comprises two inner sliding sleeve shells 331 which are symmetrically arranged, and the two inner sliding sleeve shells 331 enclose the inner sliding sleeve 33. The inner slide sleeve 331 is provided with a positioning slot 332 penetrating inside and outside along the extending direction thereof, and the positioning slot 332 includes a fixing area a arranged on one side of the pedal plate 50 and a moving area b far away from one side of the pedal plate 50. The upper side and the lower side of the fixed area a are both provided with a fixing sheet 333, the fixing sheet 333 and the inner side wall of the position adjusting long hole 332 are arranged at intervals, and two ends of the fixing sheet 333 are connected to the inner side surface of the position adjusting long hole 332.

The fixing plate 333 includes a transition section 336 and a limit section 337, the transition section 336 is connected to the side wall of the position adjusting slot 332 of the moving area b and the limit section 337, and the transition section 336 is inclined downwards from the moving area b to the limit section 337, and the limit section 337 is arranged horizontally. The limiting section 337 is provided with a plurality of positioning slots 334, and the positioning slots 334 of the upper and lower fixing pieces 333 are arranged in a one-to-one correspondence manner. A plurality of reinforcing pieces 335 are further arranged between the fixing pieces 333 and the inner side surfaces of the positioning long holes 332, and the reinforcing pieces 335 are connected to the inner side walls of the positioning long holes 332 and the fixing pieces 333 corresponding to the middle parts of the positioning grooves 334 so as to improve the strength of the fixing pieces 333. In addition, the distance between the lowest positions of the corresponding positioning slots 334 on the upper and lower fixing plates 333 is the same as the distance between the upper and lower side walls of the long positioning holes 332 in the moving area b; and the distances between the other corresponding positions between the upper fixing plate 33 and the lower fixing plate 33 are smaller than the distances between the upper side wall and the lower side wall of the position adjusting long hole 332 in the moving area b.

The end of one side of the telescopic rod 40 far from the pedal plate 50 is provided with a limiting member 41, and the limiting member 41 is provided with a limiting boss extending from one or both sides of the left and right sides of the telescopic rod 40. In this embodiment, the limiting members 41 are limiting screws, the limiting bosses are cylindrical and perpendicular to the telescopic rods 40, and the number of the telescopic rods 40 is two. In addition, the outer diameter of the limit boss is the same as the maximum distance between the corresponding limit grooves on the upper and lower fixing pieces 333. During installation, the telescopic rod 40 penetrates into the inner sliding sleeve 33, and the limiting boss of the limiting part 41 is clamped into the positioning groove 334 of the inner sliding sleeve 33.

When the length of the foot pedal 50 extending out of the seat needs to be adjusted, the expansion link 40 is pulled from the inner sliding sleeve 33, and the expansion link 40 slides forwards in the inner sliding sleeve 33 and can stop at any position of the designated moving area b. When the limiting member 41 of the telescopic rod 40 moves to the fixing region a, the limiting member 41 presses the fixing pieces 333 to the upper and lower sides until moving to the position of the positioning slot 334, the fixing pieces 333 do not press the limiting member 41 any more, the limiting member 41 can be stably clamped in the positioning slot 334 without moving, and a user can clamp the limiting member 41 into any positioning slot 334 as required. The hole width of the fixing area a is gradually reduced, so that a user can obviously perceive each position, thereby perceiving the specific position of the pedal, realizing the telescopic length adjustment and reflecting the difference of paragraph feeling; so that the most comfortable supporting position can be realized by adjusting different lengths according to different heights of users.

The other end of telescopic link 40 still is equipped with outer installation department 42, be equipped with first-order boss 421 on the outer installation department 42 and set up in the second order boss 422 at first-order boss 421 terminal surface middle part, first-order boss 421 still is equipped with two lugs 423 in the second order boss 422 outside. An intermediate groove 424, a first stepped groove 425 and a second stepped groove 426 are formed in the end surface of the step boss 422, and the depth of the intermediate groove 424 is smaller than that of the first stepped groove 425 and that of the second stepped groove 426. The first stepped groove 425 and the second stepped groove 426 are provided with a stepped step 427 on the same rotation direction side, and a guide slope 428 on the side opposite to the stepped step 427. In addition, the first stepped groove 425 and the intermediate groove 424 are disposed at an acute angle, and the first stepped groove 425 and the second stepped groove 426 are disposed at an obtuse angle.

The pedal 50 comprises a plate body 51, two adjusting components 52 and a rotating shaft 53, wherein the two adjusting components 52 are sleeved on the rotating shaft 53, and the plate body 51 is arranged on the adjusting components 52 in a penetrating manner; the outer mounting portions 42 of the two telescopic rods 40 are respectively mounted on both ends of the rotating shaft 52. The plate body 51 includes a main body 511, a side plate 512 installed at one side of the main body 511, and a connecting member 513 connected to the main body 511 and the side plate 512, wherein inner mounting portions 518 are respectively disposed on the main body 511 and the side plate 512, a mounting hole 514 passing through the inner mounting portions 518 in the transverse direction is disposed on the inner mounting portions 518, and the rotating shaft 53 simultaneously passes through the two mounting holes 514. The outer side end face of the mounting hole 514 is provided with three inner and outer extending clamping grooves 515 which are circularly distributed, the inner side end face of the hole wall of the mounting hole 514 is provided with a position adjusting groove 516 and a limiting boss 517, and the position adjusting groove 516 and the limiting boss 517 are both arranged in a semi-annular shape.

The adjusting assembly 52 is installed in the mounting hole 514 and includes a connecting fluted disc 521, a steering fluted disc 522, a pressure spring 523, a detent 524 and a gasket 525 which are sequentially arranged from outside to inside, the connecting fluted disc 522 is sleeved on an outer side surface of the second-order boss 422, the steering fluted disc 522 of the second-order boss 422 is sleeved on the rotating shaft 53 and engaged with the connecting fluted disc 521, and the detent 524 is installed on the rotating shaft 53 and extends outside the rotating shaft 53. Two clamping grooves 526 are formed in the end face of the outer side of the connecting fluted disc 521, three limiting grooves 527 are formed in the end face of the inner side of the connecting fluted disc 521, a guide surface 528 is formed in one side face of each limiting groove 527, and a limiting boss 529 is arranged at the top of each guide surface 528. In this embodiment, the guide surface 528 is inclined in a direction opposite to the direction of rotation of the guide ramp 428 on the outer mounting portion 42.

A third clamping block 530 is disposed on an outer surface of the steering toothed disc 522, a first limiting tooth 531 and a second limiting tooth 532 are disposed on an outer side end surface of the steering toothed disc 522, the first limiting tooth 531 is disposed corresponding to the first stepped groove 425, and the second limiting tooth 532 is disposed corresponding to the second stepped groove 426. And the two limit teeth are provided with corresponding limit steps 533 corresponding to the positions of the segmented steps 427 on the first step groove 425 and the second step groove 426, and are provided with leading-in surfaces 534 corresponding to the positions of the leading inclined surfaces 428. Furthermore, an annular groove (not shown) is disposed on an inner end surface of the steering gear plate 522, and an outer end surface of the compression spring 523 is mounted in the annular groove. The rotating shaft 53 includes a middle portion 531 and fitting portions 532 disposed at both sides of the middle portion, and the outer diameter of the fitting portions 532 is smaller than that of the middle portion. The adjusting unit 52 is mounted on the mounting portion 532, the spacer 525 is mounted on the mounting portion 532 on the side of the middle portion 531, and the middle portion 531 limits the spacer 525.

When the pedal plate 50 is installed, the inner mounting portion 518 of the pedal plate 50 is first fitted to the rotating shaft 53, and then the washer 525, the compression spring 523, the steering gear 522, the connecting gear 521, and the outer mounting portion 42 of the telescopic rod 40 are sequentially fitted to the rotating shaft 53 outside the inner mounting portion 518. The pin 524 extends into the positioning groove 516 of the inner mounting portion 518, and the pin 524 and the upper limiting boss 517 of the inner mounting portion 518 of the pedal plate 50 can further limit the pedal plate 50, so that the pedal plate 50 is prevented from being rotated too much. In this embodiment, the foot pedal 50 has a folded state A and two-segment use states B, C (shown in FIG. 1).

When the footrest 50 is not in use, the retractable rod 40 is retracted in the inner sliding sleeve 33, and the footrest 50 is rotated inward to a position under the seat. At this time, the second limit tooth 532 is engaged in the intermediate groove 424, the first limit tooth 531 is engaged in the second stepped groove 426, and at this time, the guiding inclined surface 428 in the second stepped groove 426 not only plays a role of guiding, but also plays a role of supporting the limit tooth 531.

When the foot pedal 50 is needed, the retractable rod 40 can be pulled out first, or the foot pedal 50 can be rotated first. The method specifically comprises the following steps: when the footrest 50 is rotated outward, the steering gear plate 522 is rotated, and the guide surface 528 of the steering gear plate 522 is rotated along the inclined guide surface 428 of the outer mounting portion 42 until the second limiting tooth 532, which is originally engaged in the intermediate groove 424, is engaged with the stepped step 427 in the second stepped groove 426, and the first limiting tooth 531 in the second stepped groove 426 is engaged with the stepped step 427 in the first stepped groove 425. At this time, the foot board 50 is positioned at the B position.

When the pedal 50 needs to be adjusted to the C position, the pedal 50 is still rotated outward and upward until the first limiting tooth 531 is completely engaged in the first stepped groove 425 and the second limiting tooth 532 is completely engaged in the second stepped groove 426, so that the pedal 50 can be positioned at the C position.

When the pedal plate 50 needs to be retracted to the seat lower side, the pedal plate 50 continues to rotate upward, and the second-order boss 422 lifts the steering toothed disc 522 until the latch 530 on the steering toothed disc 522 is latched onto the inner side surface of the limiting boss 529. The pedal 50 is rotated downwards in the opposite direction, the steering gear 522 drives the connecting gear 521 to rotate, and when the connecting gear 521 rotates by a certain angle, the connecting gear 521 does not rotate any more because the protrusions 423 and the engaging grooves 526 are matched to limit the connecting gear 521. At this time, the engaging block of the steering gear 522 can continue to rotate beyond the limiting protrusion 529 until the second limiting tooth 532 is engaged with the middle groove 424, the first limiting tooth 531 is engaged with the second stepped groove 426, and at this time, the pedal plate 50 returns to the position a.

The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A simple telescopic foot stool is characterized in that: comprises a mounting frame, two telescopic rods arranged on the mounting frame, a rotating shaft arranged between the two telescopic rods and a pedal arranged on the rotating shaft; the telescopic rod moves telescopically relative to the mounting frame to extend out of a required length, an outer mounting part is arranged on the inner side surface of the telescopic rod, a first-order boss and a second-order boss are arranged on the inner side surface of the outer mounting part, a plurality of lugs are arranged on the first-order convex end surface outside the second-order boss, a middle groove, a first step groove and a second step groove which are distributed annularly are arranged on the inner side end surface of the second-order boss, a sectional step is arranged on one side surface of the same side of the first step groove and the second step groove, and a guide inclined surface is arranged on the other side surface of the same; the pedal comprises a plate body and an adjusting component, the adjusting component is sleeved on the rotating shaft, and the plate body is arranged on the adjusting component; the adjusting assembly comprises a connecting fluted disc, a steering fluted disc, a pressure spring and a bayonet lock which are sequentially arranged on the rotating shaft from outside to inside, a clamping groove corresponding to the lug is arranged on the end surface of the outer side of the connecting fluted disc, the width of the clamping groove is larger than that of the lug, a plurality of limiting grooves are arranged on the end surface of the inner side of the connecting fluted disc, the inner side walls of the limiting grooves are provided with guiding surfaces in the same direction, and limiting bosses are arranged at the tops of the guiding surfaces; the outer surface of the steering fluted disc is provided with clamping blocks which correspond to the limiting grooves one by one; a first limiting tooth and a second limiting tooth which correspond to the first stepped groove and the second stepped groove are arranged on the outer side end face of the steering fluted disc; the positions of the first limiting teeth and the second limiting teeth, which correspond to the subsection steps, are provided with limiting steps, and the positions, which correspond to the guide inclined planes, are provided with guide surfaces; in addition, the pedal plate is provided with a folding position and an upper sectional use position and a lower sectional use position;

2. A simple telescopic horse as claimed in claim 1, characterized in that: the pedal telescopic adjusting device is characterized in that two inner sliding sleeves are arranged on the mounting frame, position adjusting long holes extending along the telescopic direction of the pedal are formed in the inner sliding sleeves, fixing areas are arranged on the position adjusting long holes, a plurality of positioning grooves are formed in the fixing areas along the extending direction of the fixing areas, a limiting part is arranged on the telescopic rod, and the limiting part can move along the position adjusting long holes and is clamped in the required positioning grooves to be adjusted in a telescopic mode in a segmented mode.

3. A simple telescopic horse as claimed in claim 2, characterized in that: the mounting bracket further comprises two outer sliding sleeves and a plurality of supporting frames connected to the two outer sliding sleeves, the inner sliding sleeves are arranged in the outer sliding sleeves and comprise inner sliding sleeve shells symmetrically arranged, and the position adjusting long holes are formed in the inner sliding sleeve shells.

4. A simple telescopic horse as claimed in claim 2, characterized in that: the position adjusting long hole comprises a fixed area arranged on one side of the pedal and a moving area far away from one side of the pedal; the upper side and the lower side of the fixed area are both provided with a fixed sheet, and a hole gap is formed between the fixed sheet and the inner side wall of the position adjusting long hole.

5. A simple telescopic foot rest as claimed in claim 4, characterized in that: the constant head tank sets up in spacing section, still be provided with a plurality of enhancement pieces between stationary blade and the accent slot hole medial surface, the enhancement piece is connected on the stationary blade of accent slot hole inside wall and constant head tank middle part position.

6. A simple telescopic foot rest as claimed in claim 5, characterized in that: the maximum distance between the corresponding positioning grooves on the two fixing pieces of the limiting section is the same as the distance between the upper side wall and the lower side wall of the moving area; and the distance between other positions between the two fixing sheets is smaller than the distance between the upper side wall and the lower side wall of the moving area.

7. A simple telescopic horse as claimed in claim 1, characterized in that: the plate body comprises a body part, a side plate part arranged on one side of the body part and a connecting piece connected with the body part and the side plate part, wherein inner installation parts are arranged on the body part and the side plate part, installation holes are formed in the inner installation parts, and the rotating shaft penetrates through the two installation holes.

8. A simple telescopic horse as claimed in claim 7, characterized in that: the outer side end face of the mounting hole is provided with three inner and outer extending clamping grooves which are circularly distributed, and the clamping block on the outer side of the steering fluted disc is clamped in the corresponding clamping groove.

9. A simple telescopic horse as claimed in claim 7, characterized in that: the adjusting component further comprises a gasket sleeved on the rotating shaft, a fixing groove is formed in one side, away from the steering fluted disc, of the clamping pin, and the gasket is clamped in the fixing groove.

10. A simple telescopic horse as claimed in claim 9, characterized in that: the clamping pin is clamped in the limiting groove, and the limiting boss limits the clamping pin.