CN212088865U

CN212088865U - Device for moving student desk and chair

Info

Publication number: CN212088865U
Application number: CN202020478162.7U
Authority: CN
Inventors: 杜海峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-12-08
Anticipated expiration: 2030-04-03

Abstract

The utility model belongs to the technical field of equipment, a device for student's desk chair removes is disclosed to solve the problem that exists in the middle of the prior art desk chair, the device is including inlaying the landing leg of dress in desk or chair leg lower extreme, the lower extreme of landing leg be equipped with the installation cavity of landing leg structure as an organic whole, be equipped with in the installation cavity and guarantee the flexible subassembly of desk or chair removal of being convenient for. The utility model discloses a device for student's desk chair removes is through this device of lower extreme installation at desk or chair leg, makes the desk chair when using, and the elastic expansion subassembly shrink guarantees that the desk chair can use steadily, and when needs remove, the elastic expansion subassembly stretches out, and supplementary desk chair is convenient to be removed.

Description

Device for moving student desk and chair

Technical Field

The utility model relates to the technical field of equipment, concretely relates to a device that is used for student's desk chair to remove.

Background

At present, school students' desks and chairs need to be moved frequently due to various reasons such as examinations, particularly, stools of students move frequently in a small range when going up and down, students usually do not move the stools but move the stools by pushing, a glaring sound can be heard through floors every time the students go up and down, great noise is generated, damages to the desks, the floors of classrooms and the like are large, and the technical problems cannot be solved by the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device for student's desk chair removal that simple structure, can guarantee that the desk chair is light to be removed and reliable and stable in order to solve the technical problem that exists in prior art school student's desk chair.

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

a device for moving the desk and chair of student is composed of a supporting leg embedded in the lower end of desk or chair, a mounting cavity integrated with said supporting leg, and an elastic telescopic unit in said mounting cavity for moving the desk or chair.

Further, the landing leg inlays the lower extreme of dress in the chair leg, the chair removal of can being convenient for of elastic stretching subassembly, the elastic stretching subassembly is fixed with spring stop device including installing the spring in the installation cavity in the top of spring, and the inboard cover of lower extreme of spring is equipped with spacing spherical shell, and the roll is installed the steel ball in the spacing spherical shell, and the both sides of spacing spherical shell are equipped with the spacing section of spherical shell, the bottom of installation cavity is equipped with the bottom plate that is used for restricting the spacing section of spherical shell.

Further, the landing leg inlays the lower extreme of dress in desk leg, the desk that can be convenient for to the elastic expansion subassembly removes, the elastic expansion subassembly is fixed with the spring limiting plate including installing the spring in the installation cavity at the top of spring, the top of spring limiting plate is fixed with can make the flexible power device of spring, and the inboard cover of lower extreme of spring is equipped with spacing spherical shell, and roll in the spacing spherical shell and install the steel ball, and the both sides of spacing spherical shell are equipped with the spacing section of spherical shell, the bottom of installation cavity is equipped with the bottom plate that is used for restricting the spacing section of spherical shell.

Furthermore, the landing leg inlays the lower extreme of dress in the chair leg, the flexible subassembly of elasticity can be convenient for the chair and remove, the flexible subassembly of elasticity includes spacing spherical shell, and the roll is installed the steel ball in the spacing spherical shell, and the edge of spacing spherical shell is fixed with planar spring, and planar spring's outward flange is fixed in the lower part of installation cavity.

Furthermore, the landing leg inlays the lower extreme of dress in the desk leg, the desk that can be convenient for to the elastic expansion subassembly removes, the elastic expansion subassembly includes spacing spherical shell, and the roll is installed the steel ball in the spacing spherical shell, and the edge of spacing spherical shell is fixed with planar spring, and planar spring's outward flange is fixed in the lower part of installation cavity, the top of spacing spherical shell is equipped with the power device who is used for extrudeing spacing spherical shell.

Further, the spring limiting device comprises a spring limiting plate fixed at the upper end of the spring, and a limiting screw used for limiting the spring limiting plate is installed on the installation cavity.

Furthermore, the power device comprises a square shaft arranged on the side part of the table, the end part of the square shaft penetrates into the mounting cavity, the matching mounting position of the square shaft and the mounting cavity is a round shaft, an eccentric wheel is arranged on the square shaft in the mounting cavity in a matching manner, and a power plate is arranged on the square shaft between the two table legs.

Furthermore, a bearing seat is installed on one side inside the installation cavity, a shaft end of the square shaft is installed in the bearing seat in a matched mode, and a square shaft clamping device is installed on the other side inside the installation cavity.

Furthermore, the square shaft position clamping device comprises an upper fixed seat and a lower fixed seat which are fixed in the installation cavity, spring pieces are fixed between two ends of the fixed seats, and the square shaft is located between the two spring pieces.

Furthermore, a bearing plate is fixedly arranged on the outer side of the top of the limiting spherical shell.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a device for student's desk chair removes is through this device of lower extreme installation at desk or chair leg, makes the desk chair when using, and the elastic expansion subassembly shrink guarantees that the desk chair can use steadily, and when needs remove, the elastic expansion subassembly stretches out, and supplementary desk chair is convenient to be removed.

The utility model discloses at the installation the device of chair leg, when not sitting the people, the spring makes the lower part of steel ball stretch out the installation cavity under the effect of spring force, then promotes the chair and removes, and the steel ball rolls the removal of the chair of being convenient for, and when sitting the people, people's weight makes the steel ball extrusion shrink, does not influence normal use.

The utility model discloses when using the device on the desk leg, when needs remove the desk, pull the power board, make the eccentric wheel rotate the extrusion steel ball, stretch out from the installation cavity in the lower part of steel ball, then promote the desk and remove, the steel ball rolls the removal of the desk of being convenient for.

Drawings

Fig. 1 is a schematic view of a person who uses the device on a leg of the chair.

Fig. 2 is a schematic view of the chair legs of the present invention after sitting on a person using the device.

Fig. 3 is a schematic view of the table leg of the present invention when the device is used to move.

Fig. 4 is a schematic view of the table leg of the present invention when the device is used without moving.

Fig. 5 is another schematic structural diagram of the device on the legs of the chair of the present invention for people not sitting on the device.

Fig. 6 is another schematic structural view of the chair leg with the device when sitting on a person.

Fig. 7 is another schematic view of the table leg of the present invention when the device is used without moving.

Fig. 8 is a schematic view of the square shaft stopper of the present invention.

Fig. 9 is a schematic view of the eccentric wheel of the present invention.

Fig. 10-11 are schematic views of the planar spring of the present invention.

The reference numerals have the following meanings: 1. a support leg; 2. a limit screw; 3. a spring; 4. a limiting spherical shell; 5. a spherical shell limiting section; 6. a base plate; 7. a steel ball; 8. a mounting cavity; 9. a spring limiting plate; 10. an eccentric wheel; 11. a bearing seat; 12. a square shaft clamping device; 13. a square shaft; 14. a power plate; 15. a planar spring; 16. reinforcing rib plates; 17. a fixed seat; 18. spring leaf, 19 bearing plate.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1: the device is used on a chair leg.

As shown in figures 1-2, the device for moving the student desk and chair comprises a supporting leg 1 which is embedded and fixed at the lower end of a chair leg, wherein the lower end of the supporting leg 1 is provided with an installation cavity 8 which is integrated with the supporting leg 1 into a whole, and an elastic telescopic component which can ensure that the chair is convenient to move is arranged in the installation cavity 8. The elastic telescopic assembly comprises a spring 3 installed in an installation cavity 8, a spring limiting plate 9 is fixed at the upper end of the spring 3, and a limiting screw 2 used for limiting the spring limiting plate 9 is installed on the installation cavity 8. The inboard cover of lower extreme of spring 3 is equipped with spacing spherical shell 4, and rolling installation has steel ball 7 in the spacing spherical shell 4, (spacing spherical shell 4 is many hemispheroids, can guarantee that steel ball 3 rolls and can not fall out) the both sides of spacing spherical shell 4 be equipped with spacing spherical shell 4 spacing section 5 of structure as an organic whole, the bottom of installation cavity 8 be equipped with installation cavity 8 be the bottom plate 6 that structure as an organic whole is used for limiting spacing section 5 of spherical shell, the mountable rubber pad in the bottom of bottom plate 6.

When a student sits on the chair, the steel ball 7 and the limiting ball shell 4 are extruded under the action of the gravity of the student, the spring 3 is compressed, the steel ball 7 is extruded into the mounting cavity 8, and the bottom plate 6 is in contact with the ground at the moment, so that the student can be stably supported. When the chair needs to be moved, after a student gets up, gravity disappears, the spring 3 is recovered under the action of the spring force, the steel ball 3 is popped up (the spring force of the spring 3 is greater than the gravity of the chair), and when the chair is pushed, the chair can be moved more conveniently and rapidly under the rolling action of the steel ball 3.

Example 2: when the table legs are used.

As shown in fig. 3-4 and 7-9, the device for moving the student desk and chair comprises a supporting leg 1 which is embedded and fixed at the lower end of a desk leg, wherein the lower end of the supporting leg 1 is provided with an installation cavity 8 which is integrated with the supporting leg 1, an elastic telescopic component which can ensure that the desk leg is convenient to move is arranged in the installation cavity 8, the elastic telescopic component comprises a spring 3 which is arranged in the installation cavity 8, the top of the spring 3 is fixed with a spring limiting plate 9, and a power device which can make the spring 3 telescopic is fixed above the spring limiting plate 9.

Power device is including installing the square shaft 13 at the desk lateral part, the tip of square shaft 13 penetrates in installation cavity 8, and

square shaft

13 and 8 cooperation installations departments of installation cavity are the round axle and are convenient for square shaft 13 and rotate, bearing frame 11 is equipped with through bolt or fixed in inside one side of installation cavity 8, the axle head that square shaft 13 was equipped with in the cooperation in the bearing frame 11, square shaft screens ware 12 is equipped with to the inside opposite side of installation cavity 8, square shaft screens ware 14 is including fixing two upper and lower fixing bases 17 in installation cavity 8, be fixed with spring leaf 18 between the fixing base 17 both ends, square shaft 13 is located between two spring leaves 18. The square shaft stopper 12 can ensure that the square shaft 13 can rotate and can also ensure that the square shaft stays at a fixed angle under the limit of the two spring pieces 18. An eccentric wheel 10 is arranged on a square shaft 13 positioned in the mounting cavity 8 in a matching way, and a power plate 14 is fixedly arranged on the square shaft 13 positioned between the two table legs. (the power plate 14 is positioned at the lower part of the two sides of the table, and does not influence the normal use of the table)

The inboard cover of lower extreme of spring 3 is equipped with spacing spherical shell 4, and rolling installation has steel ball 7 in the spacing spherical shell 4, and the both sides of spacing spherical shell 4 are equipped with the spacing section 5 of spherical shell as an organic whole structure with spacing spherical shell 4, and the bottom of installation cavity 8 is equipped with and just is used for restricting the bottom plate 6 of the spacing section 5 of spherical shell as an organic whole structure with installation cavity 8, and the bottom mountable rubber pad of bottom plate 6.

When the desk needs to be moved, the square shaft 13 is rotated by the power plate 14, the square shaft 13 drives the eccentric wheel 10 to rotate, the spring limiting plate 9 is extruded when the eccentric wheel 10 rotates, the extrusion spring 3 and the steel ball 7 are driven, the lower part of the steel ball 7 extends out of the mounting cavity 8, then the desk is pushed, and the desk can be moved more conveniently and rapidly under the rolling action of the steel ball 3. (as shown in fig. 3) when the desk does not need to be moved, the square shaft 13 is rotated by the power plate 14, the square shaft 13 drives the eccentric wheel 10 to rotate, the spring 3 rebounds under the action of the spring force, the steel ball 7 enters the mounting cavity 8, and the desk can be stably used in the state. (see fig. 4)

Example 3: another way to facilitate movement of the chair legs.

As shown in figures 5-6, the device for moving the student desk and chair comprises a supporting leg 1 which is embedded and fixed at the lower end of a chair leg, wherein the lower end of the supporting leg 1 is provided with an installation cavity 8 which is integrated with the supporting leg 1 into a whole, and an elastic telescopic component which can ensure that the chair is convenient to move is arranged in the installation cavity 8. The elastic telescopic assembly comprises a limiting spherical shell 4, a steel ball 7 is mounted in the limiting spherical shell 4 in a rolling mode, a plane spring 15 is fixed to the edge of the limiting spherical shell 4, and the outer edge of the plane spring 15 is fixed to the lower portion of the mounting cavity 8. (the flat spring 15 may be square or round, depending on the shape of the legs of the table and chair, as shown in fig. 10-11), a reinforcing rib plate 16 may be fixed in the installation cavity 8 to improve the strength of the installation cavity 8.

When a student sits on the chair, the steel ball 7 and the limiting ball shell 4 are extruded under the action of gravity of the student, the planar spring 15 deforms, the steel ball 7 is extruded into the installation cavity 8, and the bottom of the installation cavity 8 is in contact with the ground at the moment, so that the student can be stably supported. When the chair needs to be moved, after a student gets up, gravity disappears, the plane spring 15 recovers under the action of the spring force, the steel ball 3 pops up (the spring force of the plane spring 15 is greater than the gravity of the chair), and when the chair is pushed, the chair can be moved more conveniently and rapidly under the rolling action of the steel ball 3.

Example 4: another way to facilitate the movement of the desk legs.

As shown in figures 7-9, a device for moving the desk and chair of students comprises a supporting leg 1 embedded and fixed at the lower end of the desk leg, the lower end of the supporting leg 1 is provided with an installation cavity 8 which is integrated with the supporting leg 1, an elastic expansion component which can ensure the desk leg to move conveniently is arranged in the installation cavity 8,

the elastic telescopic assembly comprises a limiting spherical shell 4, a bearing plate 19 is fixedly welded on the outer side of the top of the limiting spherical shell 4, a steel ball 7 is mounted in the limiting spherical shell 4 in a rolling mode, a plane spring 15 is fixed at the edge of the limiting spherical shell 4, the outer edge of the plane spring 15 is fixed on the lower portion of the mounting cavity 8, and a power device used for extruding the limiting spherical shell 4 is arranged above the limiting spherical shell 4. The power plant has the same structure as that of the power plant of embodiment 2, and the description thereof will not be repeated.

When the desk needs to be moved, the square shaft 13 is rotated by the power plate 14, the square shaft 13 drives the eccentric wheel 10 to rotate, the bearing plate 19 at the top of the limiting spherical shell 4 is extruded when the eccentric wheel 10 rotates, the steel ball 7 is driven to be extruded, the lower part of the steel ball 7 extends out of the mounting cavity 8, then the desk is pushed, and the desk can be moved more conveniently and rapidly under the rolling action of the steel ball 3. When the desk does not need to be moved, the square shaft 13 is rotated by the power plate 14, the square shaft 13 drives the eccentric wheel 10 to rotate, the plane spring 15 rebounds under the action of the spring force, the steel ball 7 enters the mounting cavity 8, and the desk can be stably used in the state.

The design is mainly used for school student desks and chairs, and can also be used for restaurant chairs and other desks and chairs which need to be moved frequently.

Claims

1. The utility model provides a device that is used for student's desk chair to remove, characterized by: the leg support comprises a leg support (1) embedded at the lower end of a desk or chair leg, wherein the lower end of the leg support (1) is provided with a mounting cavity (8) which is integrated with the leg support (1), and an elastic telescopic component capable of ensuring that the desk or chair is convenient to move is arranged in the mounting cavity (8).

2. A device for moving student desks and chairs according to claim 1, characterised by: landing leg (1) inlays the lower extreme of adorning in the chair leg, the chair removal of can being convenient for of elastic stretching subassembly, the elastic stretching subassembly is fixed with spring stop device including spring (3) of installing in installation cavity (8) in the top of spring (3), and the inboard cover of lower extreme of spring (3) is equipped with spacing spherical shell (4), and roll in spacing spherical shell (4) and install steel ball (7), and the both sides of spacing spherical shell (4) are equipped with spacing section of spherical shell (5), the bottom of installation cavity (8) is equipped with bottom plate (6) that are used for restricting spacing section of spherical shell (5).

3. A device for moving student desks and chairs according to claim 1, characterised by: landing leg (1) inlays the lower extreme of adorning in desk leg, the desk that can be convenient for of elastic expansion subassembly removes, elastic expansion subassembly is fixed with spring limiting plate (9) including spring (3) of installing in installation cavity (8) at the top of spring (3), and the top of spring limiting plate (9) is fixed with can make the flexible power device of spring (3), and the inboard cover of lower extreme of spring (3) is equipped with spacing spherical shell (4), and roll in spacing spherical shell (4) and install steel ball (7), and the both sides of spacing spherical shell (4) are equipped with spacing section of spherical shell (5), the bottom of installation cavity (8) is equipped with bottom plate (6) that are used for restricting spacing section of spherical shell (5).

4. A device for moving student desks and chairs according to claim 1, characterised by: landing leg (1) inlays the lower extreme of dress in the chair leg, the chair removal of can being convenient for of elastic stretching subassembly, the elastic stretching subassembly includes spacing spherical shell (4), and roll in spacing spherical shell (4) is installed steel ball (7), and the edge of spacing spherical shell (4) is fixed with planar spring (15), and the lower part in installation cavity (8) is fixed to the outward flange of planar spring (15).

5. A device for moving student desks and chairs according to claim 1, characterised by: landing leg (1) inlays the lower extreme of adorning in desk leg, the desk of can being convenient for of elastic stretching subassembly removes, elastic stretching subassembly includes spacing spherical shell (4), and roll in spacing spherical shell (4) and install steel ball (7), and the edge of spacing spherical shell (4) is fixed with flat spring (15), and the lower part in installation cavity (8) is fixed to the outward flange of flat spring (15), the top of spacing spherical shell (4) is equipped with the power device who is used for extrudeing spacing spherical shell (4).

6. A device for moving student desks and chairs according to claim 2, characterised in that: the spring limiting device comprises a spring limiting plate (9) fixed at the upper end of the spring (3), and a limiting screw (2) used for limiting the spring limiting plate (9) is arranged on the mounting cavity (8).

7. A device for the movement of student desks and chairs according to claim 3 or 5 characterised by: the power device comprises a square shaft (13) arranged on the side of the table, the end of the square shaft (13) penetrates into the mounting cavity (8), the square shaft (13) and the mounting cavity (8) are matched and mounted to form a round shaft, an eccentric wheel (10) is arranged on the square shaft (13) in the mounting cavity (8) in a matched mode, and a power plate (14) is arranged on the square shaft (13) between the two table legs.

8. The device as claimed in claim 7, wherein the device is used for moving student desks and chairs, and is characterized in that: a bearing seat (11) is installed on one side of the inside of the installation cavity (8), a shaft end of a square shaft (13) is installed in the bearing seat (11) in a matched mode, and a square shaft clamping device (12) is installed on the other side of the inside of the installation cavity (8).

9. A device for moving student desks and chairs according to claim 8, characterised in that: the square shaft clamping device (12) comprises an upper fixed seat (17) and a lower fixed seat (17) which are fixed in the installation cavity (8), a spring piece (18) is fixed between the two ends of each fixed seat (17), and the square shaft (13) is located between the two spring pieces (18).

10. The device as claimed in claim 5, wherein the device is used for moving student desks and chairs, and is characterized in that: and a bearing plate (19) is fixedly arranged on the outer side of the top of the limiting spherical shell (4).