CN218127702U - Pedal lifting adjusting structure of chair - Google Patents

Abstract

The utility model provides a pedal lifting adjusting structure of a chair, which comprises a fixed seat and a pedal main body; one of the fixed seat and the pedal main body is provided with a longitudinal sliding sleeve, and the other one of the fixed seat and the pedal main body is provided with a longitudinal sliding support piece; the sliding support piece is in sliding fit in the sliding sleeve; an adjusting switch exposed outside is rotatably arranged on the sliding sleeve and is provided with a pressing part and a locking part; the locking part is provided with a lock pin, and the sliding support part is correspondingly provided with a lock hole; in the locking state, the locking part is attached to the sliding sleeve, and the lock pin is inserted into the lock hole; in an unlocking state, the extrusion acts on the pressing part to enable the adjusting switch to rotate so as to enable the lock pin to exit from the lock hole, and the sliding support piece can move up and down relative to the sliding sleeve; when the height of the pedal main body is adjusted, only the pressing part of the adjusting switch needs to be directly pressed, so that the adjusting operation is very easy and labor-saving.

Description

Pedal lifting adjusting structure of chair

Technical Field

The utility model relates to a thing to sit on field, in particular to pedal lift adjustment structure of chair.

Background

The attention degree of the current society and families to the learning and learning environment of children is higher and higher, numerous lifting learning table and chair brands appear in the market, and the learning table and chair and the children are endowed with the function of jointly growing to adapt to the learning of each stage of the children. However, not all families can fully understand the using functions of the lifting learning table and chair and purchase the lifting learning table and chair as a necessary product for healthy growth and learning of children, so that a few children are still provided with learning environments in the mode of a traditional desk. Most parents can purchase and configure a whole set of desks and chairs for children after contacting with lifting learning desks and chairs, but some parents do not want to directly abandon the existing traditional desks which are not lifted due to various factors.

Since the conventional desk is designed according to the height of an adult and has a high height, children often need to use adult chairs or adjust the chairs to be high when using the desk, and thus, feet are difficult to contact the ground. In order to facilitate the use of children, the learning chair is also provided with pedals on the chair feet of the chair, so that the children can conveniently step on the chair feet; however, most of the existing learning chairs can not adjust the height of the pedals, and can not adapt to children of different school ages and different heights; the pedal becomes a furnishing with low practicability along with the growth of the age and the height of the children.

CN201620460166.6, the utility model provides "a chair leg with height-adjustable pedal and a learning chair using the same", wherein the chair leg comprises a chair leg main body and a plurality of support legs; the supporting legs are arranged around the chair leg main body in a divergent mode; wherein, two connected feet are respectively provided with a pedal for a user to put on the feet; each pedal comprises a pedal, a connecting rod, at least one cushion block and a hand wheel; wherein the pedal is positioned above the support leg and connected with the connecting rod; the cushion block is arranged on the connecting rod in a penetrating way; the connecting rod passes through the supporting leg from top to bottom; the hand wheel is positioned below the supporting foot and is connected with the connecting rod. The learning chair with the chair legs with the height-adjustable pedals can simply and conveniently adjust the height of the pedals, can meet the requirement that children with different ages and different heights can learn and use in the traditional non-lifting traditional desk environment, and can protect the health of the children. Although the height of the pedals can be adjusted, the adjusting steps are complicated, the pedals on the two support legs are sequentially detached, then the cushion blocks are added or reduced, and then the pedals are sequentially locked; the operation is undoubtedly very troublesome and inconvenient, and the science and technology sense is not strong.

In view of the above problems, it is desirable to design a height-adjustable pedal, and the adjustment operation is very simple and convenient.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a pedal lifting adjusting structure of a chair; the height of the pedal main body can be adjusted through the matching of the sliding support piece and the sliding sleeve; and the sliding support piece is controlled to slide, lock and unlock through the adjusting switch, so that when the height of the pedal main body is adjusted, only the pressing part of the adjusting switch is directly pressed, and the adjusting operation is very easy and labor-saving.

The technical scheme of the utility model is realized like this:

a pedal lifting adjusting structure of a chair comprises a fixed seat and a pedal main body; one of the fixed seat and the pedal main body is provided with a longitudinal sliding sleeve, and the other one of the fixed seat and the pedal main body is provided with a longitudinal sliding support piece; the sliding support piece is in sliding fit in the sliding sleeve; an adjusting switch which is exposed outside is rotatably arranged on the sliding sleeve and is provided with a pressing part and a locking part; the locking part is provided with a lock pin, and the sliding support part is correspondingly provided with a lock hole; in the locking state, the locking part is attached to the sliding sleeve, and the lock pin is inserted into the lock hole; under the unlocking state, the extrusion acts on the pressing part to enable the adjusting switch to rotate so as to enable the lock pin to exit from the lock hole, and the sliding support piece can move up and down relative to the sliding sleeve.

Preferably, a plurality of longitudinally spaced lock holes are arranged on the sliding support; a through hole for avoiding the lock pin to pass through is correspondingly formed in the sliding sleeve; under the locking state, the lock pin penetrates through the through hole and is inserted into the lock hole. So that the pedal body has a plurality of adjustment positions.

Preferably, the sliding sleeve is concavely provided with a longitudinal installation caulking groove, and the regulating switch is embedded and rotatably installed in the installation caulking groove; the adjusting switch further comprises a rotating matching part located between the pressing part and the locking part, rotating protrusions are further respectively arranged on two sides, located on the installation embedding groove, of the sliding sleeve, and the rotating matching part is rotatably connected between the two rotating protrusions. The adjusting switch can rotate in the mounting caulking groove, so that the adjusting switch does not completely protrude out of the sliding sleeve; so that the structure connection is compact, simple and beautiful.

Preferably, a spring for acting on the pressing part is arranged between the sliding sleeve and the pressing part; the spring is configured to provide a tendency for the adjustment switch to rotate at all times to insert the locking pin into the locking hole. The spring is arranged, so that the pressing part has good damping hand feeling when being extruded; and after the pressing part is loosened, the adjusting switch can automatically rotate and reset to lock the sliding support.

Preferably, the sliding support is a tubular structure with a hollow interior, a first reinforcing rib is arranged on the inner wall of the sliding support on one side of the lock hole, and the lock hole extends into the first reinforcing rib. When the lock is locked, the length of the inserting part of the lock pin and the lock hole can be increased, so that the locking structure is more stable in a locking state; the structure design is ingenious.

Preferably, the sliding support is embedded in the sliding sleeve; a plurality of spaced sliding convex strips which are longitudinally arranged are arranged on the outer wall of the sliding support piece along the circumferential direction of the sliding support piece; a longitudinal sliding groove is arranged at the corresponding position of the inner wall of the sliding sleeve; the sliding support piece is embedded in the sliding sleeve and enables the sliding convex strip to be embedded in the sliding groove in a sliding mode. Thereby the sliding support piece and the sliding sleeve are tightly matched, the sliding between the sliding support piece and the sliding sleeve is very smooth, and the phenomenon of blocking can not occur; so that the adjustment is very easy.

Preferably, the sliding support is provided at the bottom end of the pedal body and extends downward; the sliding sleeve is correspondingly arranged on the fixed seat and extends upwards; the width of the sliding support piece is 10-20cm, and correspondingly, the width of the sliding sleeve is 11-21cm. Sliding support piece and sliding sleeve respectively are the part of a whole width broad, and the tradition of comparing needs to set up about two slip external members, this structural support is more stable, and goes up and down to slide more smoothly, avoids controlling the unsynchronized card pause that produces in both sides.

Preferably, the adjusting switch is arranged on the front end face of the sliding sleeve. The child can conveniently sit on the chair, and the parents can help to adjust the chair.

Preferably, a detachable reinforcing screw is further assembled between the sliding support and the rear end of the sliding sleeve; the sliding sleeve is provided with a mounting hole, and the sliding support piece is correspondingly provided with connecting holes which are longitudinally spaced and can be aligned with the mounting hole; the reinforcing screw penetrates through the mounting hole and is connected in the connecting hole. When the height adjustment of the sliding support is completed and is in the locked state, the reinforcing screw can be further assembled, thereby enhancing the structural strength of the foothold body.

Preferably, the sliding support part is of a tubular structure, a second reinforcing rib is arranged on the inner wall of the sliding support part, which is positioned on one side of the connecting hole, and a nut is embedded in the position, corresponding to the connecting hole, of the second reinforcing rib. Therefore, the reinforcing screw is detachably connected between the reinforcing screw and the reinforcing screw by the bolt, and the reinforcing screw is convenient and quick to assemble and disassemble; and set up the second and strengthen the fin, can increase the structural strength of junction.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

the utility model discloses a pedal lifting adjusting structure of a chair, which realizes sliding fit between a pedal main body and a fixed seat through a sliding sleeve and a sliding support piece, so that the pedal main body can move up and down to adjust the height of the pedal main body; an adjusting switch is arranged on the sliding sleeve in a rotating mode, a lock pin is arranged on the adjusting switch, and longitudinally spaced lock holes are correspondingly formed in the sliding support; when the pedal main body is locked, the lock pin is inserted into the lock hole to play a locking role; when the height of the pedal main body needs to be adjusted, only the pressing part needs to be directly pressed to drive the adjusting switch to rotate, the adjusting switch rotates to enable the lock pin to exit from the lock hole, and then the pedal main body can be adjusted in a sliding mode; the adjustment operation is very easy and labor-saving; and still be equipped with the spring between sliding sleeve and the regulating switch for after pedal main part altitude mixture control is good, directly loosen regulating switch, the spring can act on regulating switch automatic rotation and reset in order to lock sliding support spare once more.

Secondly, a plurality of longitudinally arranged sliding convex strips are arranged on the outer wall of the sliding support piece at intervals along the circumferential direction of the sliding support piece; a longitudinal sliding groove is arranged at the corresponding position of the inner wall of the sliding sleeve; the sliding support piece is embedded in the sliding sleeve and enables the sliding convex strip to be embedded in the sliding groove in a sliding mode; thereby the sliding support piece and the sliding sleeve are tightly matched, the sliding between the sliding support piece and the sliding sleeve is very smooth, and the phenomenon of blocking can not occur; so that the adjustment is very easy.

Moreover, in order to further improve the structural stability of the pedal main body; a detachable reinforcing screw is also assembled between the sliding support piece and the rear end of the sliding sleeve; when the height adjustment of the sliding support is completed and is in the locked state, the reinforcing screw can be further assembled, thereby enhancing the structural strength of the foothold body.

Drawings

FIG. 1 is a schematic perspective view of the embodiment of the present invention, wherein the fixing base and the pedal body are mounted on the base of the chair;

fig. 2 is a schematic perspective view of the adjusting switch in an unlocked state according to an embodiment of the present invention;

fig. 3 is a schematic perspective view illustrating a rising of the sliding support relative to the sliding sleeve according to the embodiment of the present invention;

FIG. 4 is an exploded view of the embodiment of the present invention in which the fixing base is connected to the pedal body;

fig. 5 is a schematic perspective view of the reinforcing screw connection according to the embodiment of the present invention;

fig. 6 is a schematic perspective view of the sliding support member and the sliding sleeve of the present invention.

The figures are numbered: a fixed seat 1; a pedal body 2; a sliding sleeve 3; a sliding support 4; a sliding rib 5; a sliding groove 6; an adjustment switch 7; a rotation fitting portion 7a; a pressing portion 7b; a locking portion 7c; installing a caulking groove 8; the rotating boss 9; a lock pin 10; a lock hole 11; a via 12; a spring mounting hole 13; a spring 14; the first reinforcing ribs 15; a reinforcing screw 16; mounting holes 17; a connecting hole 18; and second reinforcing ribs 19.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present embodiment is described with reference to the orientation of the various components, such as front, rear, etc., in a normal use condition with the user seated in the seat.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1-6, the pedal lifting adjusting structure of the chair provided by the present invention comprises a fixing base 1 and a pedal main body 2; the fixing seat 1 is arranged on a base of a chair (particularly a children chair), and after a child sits on the chair, two feet can step on the pedal main body 2 to avoid suspension; and the pedal body 2 can be adjusted to be lifted relative to the fixed seat 1 to adapt to children with different heights.

Further, the following steps are carried out: as shown in fig. 2-6, a sliding sleeve 3 extending longitudinally and upwardly is disposed on the fixing base 1, and a sliding support 4 extending longitudinally and downwardly is correspondingly disposed at the bottom end of the pedal body 2; the sliding support 4 is in sliding fit in the sliding sleeve 3; as shown in fig. 6, a plurality of longitudinally spaced sliding protruding strips 5 are arranged on the outer wall of the sliding support 4 along the circumferential direction of the sliding support 4, and correspondingly, sliding grooves 6 are arranged at corresponding positions on the inner wall of the sliding sleeve 3; the sliding support piece 4 is downwards embedded in the sliding sleeve 3, and the sliding convex strip 5 is in sliding fit in the sliding groove 6; thereby make sliding support piece 4 and sliding sleeve 3 be connected closely, and when making the pedal main part 2 of effect 1 lifting operation of relative fixing base, sliding support piece 4 slides very smoothly relative sliding sleeve 3, can not appear the card phenomenon.

In addition, the front end of the sliding sleeve 3 is also rotatably provided with an adjusting switch 7 exposed outside, and the pedal main body 2 and the fixed seat 1 can be locked or unlocked in a sliding manner by acting on the adjusting switch 7; specifically, the method comprises the following steps: a longitudinal installation caulking groove 8 is concavely arranged at the front end of the sliding sleeve 3, and the regulating switch 7 is embedded in the installation caulking groove 8; and the front end of the sliding sleeve 3 is positioned on both sides of the installation caulking groove 8 and is also respectively provided with a rotating bulge 9 protruding forwards, the middle part of the regulating switch 7 is provided with a rotating matching part 7a, and the rotating matching part 7a is rotatably connected between the two rotating bulges 9, so that the regulating switch 7 can rotate and move in the installation caulking groove 8. And the adjustment switch 7 further includes a pressing portion 7b located below the rotation-fitting portion 7a and a locking portion 7c located above the rotation-fitting portion 7 a. The locking part 7c is provided with a lock pin 10 extending towards the sliding sleeve 3, the front end of the sliding support 4 is correspondingly provided with lock holes 11 at intervals longitudinally, the upper end of the installation caulking groove 8 is correspondingly provided with a through hole 12 for avoiding the lock pin 10 to pass through, and the lock pin 10 can pass through the through hole 12 and is in inserted fit with the lock holes 11; the aperture of the via hole 12 is larger than that of the lock hole 11. As shown in fig. 4, a spring mounting hole 13 is further provided at the lower end of the mounting caulking groove 8, a spring 14 for acting on the pressing portion 7b is provided in the spring mounting hole 13, and the spring 14 is arranged so that the lock pin 10 tends to be always inserted into the lock hole 11. Then, as shown in fig. 1, in the locked state, the locking portion 7c is attached to the sliding sleeve 3, the lock pin 10 is inserted into the lock hole 11, the sliding support 4 is slidably locked with the sliding sleeve 3, and the pedal body 2 is fixed relative to the fixing base 1. As shown in fig. 2 and 3, when the height of the pedal body 2 needs to be adjusted, only the pressing portion 7b needs to be directly pressed to rotate the adjustment switch 7 relative to the sliding sleeve 3, and the locking portion 7c moves away from the sliding sleeve 3, so that the lock pin 10 exits from the lock hole 11; then, the sliding body 2 can be lifted relative to the fixed seat 1 to adjust the height of the pedal body 2, and after the adjustment is completed, the pressing portion 7b is only required to be loosened, and the adjusting switch 7 can enable the lock pin 10 to be inserted into the lock hole 11 again under the action of the spring 14, so that the pedal body 2 is locked again. So that the adjustment mode of the pedal main body 2 is very convenient, and only the adjusting switch 7 needs to be directly pressed; the operation is quick and labor-saving, and the science and technology feeling is given.

As shown in fig. 6, the sliding support 4 is a tubular structure with a hollow interior, a longitudinal first reinforcing rib 15 is further provided on the inner wall of the front end of the interior of the sliding support 4, and the locking hole 11 extends into the first reinforcing rib 15. When the lock is locked, the length of the inserting part of the lock pin 10 and the lock hole 11 can be increased, so that the locking structure is more stable in a locking state; the structure design is ingenious.

As shown in fig. 5 and 6, in order to further improve the structural stability, a detachable reinforcing screw 16 is further assembled between the sliding support 4 and the rear end of the sliding sleeve 3; the method specifically comprises the following steps: the rear end of the sliding sleeve 3 is provided with a mounting hole 17, and the rear end of the sliding support 4 is correspondingly provided with connecting holes 18 which are longitudinally spaced and can be aligned with the mounting hole 17; a longitudinal second reinforcing convex rib 19 is arranged on the inner wall of the rear end in the sliding support piece 4, and a nut is embedded in the second reinforcing convex rib 19 at a position corresponding to the connecting hole 18; then, after the height adjustment of the sliding support 4 is completed and is in the locked state, the reinforcing screw 16 can be further connected, thereby enhancing the structural strength of the foothold body 2; and the reinforcing screw 16 is detachable, so that the connection is very convenient.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. A pedal lift adjustment structure of chair which characterized in that: comprises a fixed seat and a pedal main body; one of the fixed seat and the pedal main body is provided with a longitudinal sliding sleeve, and the other one of the fixed seat and the pedal main body is provided with a longitudinal sliding support piece; the sliding support piece is in sliding fit in the sliding sleeve; an adjusting switch exposed outside is rotatably arranged on the sliding sleeve and is provided with a pressing part and a locking part; the locking part is provided with a lock pin, and the sliding support part is correspondingly provided with a lock hole; in the locking state, the locking part is attached to the sliding sleeve, and the lock pin is inserted into the lock hole; under the unlocking state, the extrusion acts on the pressing part to enable the adjusting switch to rotate so as to enable the lock pin to exit from the lock hole, and the sliding support piece can move up and down relative to the sliding sleeve.

2. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: a plurality of longitudinally spaced lock holes are arranged on the sliding support; a through hole for avoiding the lock pin to pass through is correspondingly formed in the sliding sleeve; under the locking state, the lock pin passes through the through hole and is inserted in the lock hole.

3. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: a longitudinal installation caulking groove is concavely arranged on the sliding sleeve, and the adjusting switch is embedded and rotatably installed in the installation caulking groove; the regulating switch further comprises a rotating matching part positioned between the pressing part and the locking part, rotating protrusions are respectively arranged on two sides of the sliding sleeve, which are positioned in the installation caulking groove, and the rotating matching part is rotatably connected between the two rotating protrusions.

4. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: a spring used for acting on the pressing part is arranged between the sliding sleeve and the pressing part; the spring is configured to provide a tendency for the adjustment switch to rotate at all times to insert the locking pin into the locking hole.

5. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: the sliding support piece is of a hollow tubular structure, a first reinforcing rib is arranged on the inner wall, located on one side of the lock hole, of the sliding support piece, and the lock hole extends into the first reinforcing rib.

6. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: the sliding support piece is embedded in the sliding sleeve; a plurality of spaced sliding convex strips which are longitudinally arranged are arranged on the outer wall of the sliding support piece along the circumferential direction of the sliding support piece; a longitudinal sliding groove is arranged at the corresponding position of the inner wall of the sliding sleeve; the sliding support piece is embedded in the sliding sleeve and enables the sliding convex strip to be embedded in the sliding groove in a sliding mode.

7. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: the sliding support piece is arranged at the bottom end of the pedal main body and extends downwards; the sliding sleeve is correspondingly arranged on the fixed seat and extends upwards; the width of the sliding support piece is 10-20cm, and correspondingly, the width of the sliding sleeve is 11-21cm.

8. The structure of claim 1, wherein the pedal elevation adjusting mechanism comprises: the adjusting switch is arranged on the front end face of the sliding sleeve.

9. The structure of claim 8, wherein the step-up-down adjusting mechanism comprises: a detachable reinforcing screw is also assembled between the sliding support piece and the rear end of the sliding sleeve; the sliding sleeve is provided with a mounting hole, and the sliding support piece is correspondingly provided with connecting holes which are longitudinally spaced and can be aligned with the mounting hole; the reinforcing screw penetrates through the mounting hole and is connected in the connecting hole.

10. The structure of claim 9, wherein the pedal elevation adjusting means comprises: the sliding support piece is of a tubular structure, a second reinforcing convex rib is arranged on the inner wall of the sliding support piece, which is positioned on one side of the connecting hole, and a nut is pre-embedded in the position, corresponding to the connecting hole, of the second reinforcing convex rib.

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