CN216364177U

CN216364177U - Lifting adjusting device of student desk and chair

Info

Publication number: CN216364177U
Application number: CN202122783035.5U
Authority: CN
Inventors: 胡晓光
Original assignee: Guangdong Yidinghao Furniture Co ltd
Current assignee: Guangdong Yidinghao Furniture Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-26
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a lifting adjusting device of a student desk and chair, which relates to the technical field of student desk and chair and comprises a chair panel, wherein two vertical posts are fixedly connected to the bottom surface of the chair panel, outer vertical tubes are respectively connected to the outer surfaces of the two vertical posts in a sliding manner, base assemblies are respectively installed at the bottom ends of the two outer vertical tubes, a connecting frame is fixedly connected between the two outer vertical tubes, a lifting adjusting assembly is arranged below the chair panel, two guide mechanisms are installed between the connecting frame and the chair panel, and a group of air holes are formed in the upper surface of the chair panel. It can set up through the cooperation between chair face board, upstand, outer standpipe, connection frame and the lift adjustment subassembly, utilizes and adjusts lift assembly, can carry out lift adjustment to the chair face board, and the device uses the mode that the screw goes up and down, and the wearing and tearing that produce when can avoiding using button and draw-in groove can improve the stability of table chair, the security when guaranteeing the table chair use.

Description

Lifting adjusting device of student desk and chair

Technical Field

The utility model relates to the technical field of student desk and chair, in particular to a lifting adjusting device of a student desk and chair.

Background

A desk and chair is a desk and chair used by students in class, and is also called a student desk and chair and a school desk and chair. The desk and chair can be divided into a plurality of groups according to age, materials and functions, the height difference of the statures of students is large, in order to meet the requirements of students with different statures, the desk and chair capable of adjusting the lifting is developed in recent years so as to meet the requirements of students with different heights, and a lifting adjusting device is required to be arranged on the desk and chair capable of adjusting the lifting.

At present, the prior art discloses a lifting adjusting device of student's desk and chair, and its patent number is: CN203851999U, wherein a group of lifting adjusting devices are respectively arranged on the vertical rods at the left and right sides, when the desk and the chair lift, the left and right inner vertical tubes fall down simultaneously, so as to avoid deflection and ensure smooth lifting; the descending action has spring buffering, and the whereabouts is slow, stable, guarantees operator personal safety, and the promotion action need not to press the button, convenient operation, but it mainly comes to carry on spacingly to interior standpipe through button and draw-in groove, uses the back for a long time, and button and draw-in groove all can produce wearing and tearing for the joint effect of button and draw-in groove is not good, appears damaging easily, and the stability that leads to the table chair is relatively poor, influences the security when table chair uses. Therefore, the lifting adjusting device for the student desk and chair solves the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims to make up for the defects of the prior art and provides a lifting adjusting device of a student desk and chair.

II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a lift adjustment device of student's desk chair, includes the chair faceplate, two upstands of the bottom surface fixedly connected with of chair faceplate, two the equal sliding connection of surface of upstand has outer standpipe, two the base subassembly is all installed to the bottom of outer standpipe, two fixedly connected with connecting frame between the outer standpipe, the below of chair faceplate is provided with lift adjustment subassembly, the connecting frame with install two guiding mechanism between the chair faceplate, a set of bleeder vent has been seted up to the upper surface of chair faceplate, the left surface fixedly connected with back of chair faceplate, the right flank mounting of back has the protruding grain of a set of rubber.

Further, the base subassembly including fixed connection in the horizontal pole of outer standpipe bottom, the surface of horizontal pole with install two strengthening ribs between the surface of outer standpipe.

Furthermore, the surface mounting of horizontal pole has two silica gel pieces, two a set of anti-skidding line has all been seted up to the bottom surface of silica gel piece.

Furthermore, the lifting adjusting assembly comprises two threaded holes, the two threaded holes are respectively formed in the two vertical columns, threaded rods are connected to the inner walls of the two threaded holes in a threaded mode, and bevel gears I are mounted on the outer surfaces of the two threaded rods.

Furthermore, a connecting rod is arranged between the two threaded rods and located inside the connecting frame, two ends of the connecting rod are respectively connected with the outer surfaces of the two outer vertical pipes in a rotating mode, two ends of the connecting rod are respectively and fixedly connected with a second bevel gear, the second bevel gear is respectively meshed with the first bevel gear, and a third bevel gear is fixedly connected to the outer surface of the connecting rod.

Further, the top of connecting rod is provided with the dwang, the dwang with the upper surface of coupling frame rotates and connects, bevel gear four is installed to the bottom of dwang, bevel gear four and bevel gear three-phase meshing, the turning block is installed on the top of dwang.

Further, two the both sides of screw hole all are provided with two spouts, and every two spouts are seted up respectively in the inner wall of two outer standpipes, every the equal sliding connection of inner wall of spout has the slider, and the surface fixed connection of slider and upstand.

Furthermore, guiding mechanism including fixed connection in the guide cylinder of connecting frame upper surface, the inner wall sliding connection of guide cylinder has the guide bar, the top of guide bar with the bottom surface fixed connection of chair faceplate.

Thirdly), the beneficial effects are as follows:

compared with the prior art, this lift adjustment device of student's desk chair possesses following beneficial effect:

according to the device, the chair panel can be adjusted in a lifting mode by adjusting the lifting component through the matching arrangement of the chair panel, the vertical column, the outer vertical tube, the connecting frame and the lifting adjusting component, and the device can avoid abrasion generated when a button and a clamping groove are used in a threaded lifting mode, so that the stability of a table and a chair can be improved, and the safety of the table and the chair in use can be ensured.

According to the utility model, through the matching arrangement of the threaded hole, the threaded rod, the first bevel gear, the connecting rod, the second bevel gear, the third bevel gear, the rotating rod, the fourth bevel gear, the rotating block, the sliding groove and the sliding block, the rotating block can be rotated to drive the rotating rod and the fourth bevel gear to rotate, so that the third bevel gear and the connecting rod can be driven to rotate, the connecting rod can drive the second bevel gear to rotate, the second bevel gear can drive the first bevel gear and the threaded rod to rotate, and the threaded rod rotates to enable the vertical column to move, so that the height of the chair panel can be changed, and the chair panel can be lifted.

Drawings

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

FIG. 2 is a schematic perspective view of the present invention in a bottom view;

FIG. 3 is a front view of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention;

FIG. 6 is an enlarged view of the structure at C in FIG. 4 according to the present invention.

In the figure: 1. a chair panel; 2. a vertical post; 3. an outer vertical tube; 4. a base assembly; 401. a cross bar; 402. reinforcing ribs; 403. a silica gel block; 404. anti-skid lines; 5. a connecting frame; 6. a lift adjustment assembly; 601. a threaded hole; 602. a threaded rod; 603. a first bevel gear; 604. a connecting rod; 605. a second bevel gear; 606. a third bevel gear; 607. rotating the rod; 608. a fourth bevel gear; 609. rotating the block; 610. a chute; 611. a slider; 7. a guide mechanism; 701. a guide cylinder; 702. a guide bar; 8. air holes are formed; 9. a backrest; 10. and (5) protruding rubber particles.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the present invention provides a technical solution: the utility model provides a student desk chair's lift adjusting device, includes chair faceplate 1, two symmetrical upstands 2 of bottom surface fixedly connected with of chair faceplate 1, the equal sliding connection of surface of two upstands 2 has outer standpipe 3, upstand 2 can support chair faceplate 1, and upstand 2 can slide at the inner wall of standpipe 3 outside, can highly adjust chair faceplate 1, realize the lift to chair faceplate 1.

Base component 4 is all installed to the bottom at two outer standpipes 3, and base component 4 includes the horizontal pole 401 of fixed connection in outer standpipe 3 bottom, installs two symmetrical strengthening ribs 402 between the surface of horizontal pole 401 and the surface of outer standpipe 3.

The horizontal pole 401 of setting can increase the frictional force between outer standpipe 3 and the ground, can guarantee the device's stability, and the strengthening rib 402 of setting can strengthen the structural strength between horizontal pole 401 and the outer standpipe 3 for the device is more firm when using.

There are two symmetrical silica gel pieces 403 on the surface of horizontal pole 401, and the bottom surface of two silica gel pieces 403 all sets up the anti-skidding line 404 that a set of equidistance was arranged, and the silica gel piece 403 that sets up can protect and cushion horizontal pole 401, can reduce the noise that the friction produced between horizontal pole 401 and the ground, and the anti-skidding line 404 that sets up can make silica gel piece 403 antiskid more.

Fixedly connected with carriage 5 between two outer standpipes 3, the carriage 5 of setting, can strengthen the structural strength between two outer standpipes 3, the below of chair faceplate 1 is provided with lift adjustment subassembly 6, lift adjustment subassembly 6 includes two symmetrical screw hole 601, two screw hole 601 are seted up respectively in the inside of two upstands 2, the equal threaded connection of inner wall of two screw hole 601 has threaded rod 602, the bottom of threaded rod 602 rotates with the interior diapire of outer standpipe 3 to be connected, bevel gear 603 is all installed to the surface of two threaded rod 602.

Utilize the screw-thread fit between threaded rod 602 and the screw hole 601, rotate two threaded rods 602, can make two upstands 2 slide at the inner wall of two outer standpipes 3 respectively to can carry out lift adjustment to chair face board 1.

A connecting rod 604 is arranged between the two threaded rods 602, the connecting rod 604 is located inside the connecting frame 5, two ends of the connecting rod 604 are respectively rotatably connected with the outer surfaces of the two outer vertical pipes 3, two ends of the connecting rod 604 are both fixedly connected with a second bevel gear 605, the two second bevel gears 605 are respectively meshed with the first bevel gears 603, and the outer surface of the connecting rod 604 is fixedly connected with a third bevel gear 606.

The two ends of the connecting rod 604 respectively penetrate through the outer surfaces of the two outer vertical pipes 3 and extend into the outer vertical pipes 3, the connecting rod 604 can drive the two bevel gears 605 to rotate, and the bevel gears 603 and the threaded rods 602 can be driven to rotate by rotating the connecting rod 604 and utilizing the matching between the bevel gears 605 and the bevel gears 603.

A rotating rod 607 is arranged above the connecting rod 604, the rotating rod 607 is rotatably connected with the upper surface of the connecting frame 5, a bevel gear four 608 is arranged at the bottom end of the rotating rod 607, the bottom end of the rotating rod 607 extends into the connecting frame 5, the bevel gear four 608 is meshed with the bevel gear three 606, and a rotating block 609 is arranged at the top end of the rotating rod 607.

The rotating block 609 can drive the rotating rod 607 and the bevel gear four 608 to rotate, and the bevel gear four 608 can drive the bevel gear three 606 and the connecting rod 604 to rotate by utilizing the matching between the bevel gear four 608 and the bevel gear three 606, so that the vertical column 2 can be conveniently lifted.

Two symmetrical sliding grooves 610 are arranged on two sides of each threaded hole 601, each two sliding grooves 610 are respectively arranged on the inner walls of the two outer vertical pipes 3, a sliding block 611 is connected to the inner wall of each sliding groove 610 in a sliding mode, and the sliding blocks 611 are fixedly connected with the outer surfaces of the vertical columns 2.

When the upstand 2 slides on the inner wall of the outer vertical pipe 3, the sliding block 611 can slide on the inner wall of the sliding groove 610, the upstand 2 can be guided and limited, and the stability of the upstand 2 in moving can be guaranteed.

Two symmetrical guide mechanisms 7 are installed between the connecting frame 5 and the chair panel 1, each guide mechanism 7 comprises a guide cylinder 701 fixedly connected to the upper surface of the connecting frame 5, the inner wall of each guide cylinder 701 is connected with a guide rod 702 in a sliding mode, and the top end of each guide rod 702 is fixedly connected with the bottom surface of the chair panel 1.

When the seat panel 1 moves up and down, the guide rod 702 can slide on the inner wall of the guide cylinder 701, the seat panel 1 can be guided, and the stability of the device can be ensured.

Set up a set of bleeder vent 8 that the equidistance was arranged at the upper surface of chair panel 1, the bleeder vent 8 of setting can guarantee the gas permeability of the upper surface of chair panel 1, the left surface fixedly connected with back 9 of chair panel 1, the protruding grain 10 of rubber that a set of equidistance was arranged is installed to the right flank of back 9, the back 9 of setting can support student's back, the protruding grain 10 of rubber of setting can guarantee student's back travelling comfort.

The working principle is as follows: when the device is used, the arranged base component 4 can support a table and a chair, so that the friction force between the table and the chair and the ground is increased, and the stability of the table and the chair in use is ensured, when the table and the chair are required to be lifted, firstly, the rotating block 609 is rotated, the rotating block 609 can drive the rotating rod 607 and the bevel gear four 608 to rotate, so that the bevel gear three 606 and the connecting rod 604 can be driven to rotate, the connecting rod 604 can drive the two bevel gear two 605 to rotate, by utilizing the matching arrangement between the bevel gear two 605 and the bevel gear one 603, the bevel gear two 605 can drive the bevel gear one 603 and the threaded rod 602 to rotate, by utilizing the threaded matching between the threaded rod 602 and the threaded hole 601, the threaded rod 602 rotates, so that the vertical column 2 can move downwards in the guide of the sliding groove 610 and the sliding block 611, so that the height of the chair panel 1 can be changed, and the lifting effect of the chair panel 1 can be obtained, the guide rod 702 can slide on the inner wall of the guide cylinder 701 while the seat panel 1 moves up and down, and the seat panel 1 can be guided.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "fixedly," "mounted," "connected," and "connected" are to be construed broadly, e.g., "mounted" may be fixedly connected, or detachably connected, or integrally connected; "connected" may be mechanically or electrically connected; "connected" may be directly connected or indirectly connected through an intermediate member, or may be internal or external to two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lifting adjusting device of student's desk chair, includes chair surface board (1), its characterized in that: two upstands (2) of bottom surface fixedly connected with of chair panel (1), two there are outer standpipe (3) the equal sliding connection in surface of upstand (2), two base subassembly (4) are all installed to the bottom of outer standpipe (3), two fixedly connected with connection frame (5) between outer standpipe (3), the below of chair panel (1) is provided with lift adjustment subassembly (6), connection frame (5) with install two guiding mechanism (7) between chair panel (1), a set of bleeder vent (8) have been seted up to the upper surface of chair panel (1), left surface fixedly connected with back (9) of chair panel (1), the right flank mounting of back (9) has a set of protruding grain of rubber (10).

2. The lifting adjusting device of student desk and chair according to claim 1, characterized in that: the base assembly (4) comprises a cross rod (401) fixedly connected to the bottom end of the outer vertical pipe (3), and two reinforcing ribs (402) are installed between the outer surface of the cross rod (401) and the outer surface of the outer vertical pipe (3).

3. The lifting adjusting device of student desk and chair according to claim 2, characterized in that: the outer surface mounting of horizontal pole (401) has two silica gel pieces (403), two a set of anti-skidding line (404) have all been seted up to the bottom surface of silica gel piece (403).

4. The lifting adjusting device of student desk and chair according to claim 1, characterized in that: the lifting adjusting assembly (6) comprises two threaded holes (601), the two threaded holes (601) are respectively formed in the two vertical columns (2), threaded rods (602) are connected to the inner walls of the two threaded holes (601) in a threaded mode, and bevel gears I (603) are mounted on the outer surfaces of the two threaded rods (602).

5. The lifting adjusting device of student desk and chair according to claim 4, characterized in that: two be provided with connecting rod (604) between threaded rod (602), connecting rod (604) are located the inside of linking frame (5), the both ends of connecting rod (604) rotate with the surface of two outer standpipes (3) respectively and are connected, the equal fixedly connected with bevel gear two (605) in both ends of connecting rod (604), two bevel gear two (605) mesh with two bevel gear one (603) respectively mutually, the fixed surface of connecting rod (604) is connected with bevel gear three (606).

6. The lifting adjusting device of student desk and chair according to claim 5, characterized in that: the top of connecting rod (604) is provided with dwang (607), dwang (607) with the upper surface of coupling frame (5) rotates and connects, bevel gear four (608) are installed to the bottom of dwang (607), bevel gear four (608) and bevel gear three (606) mesh mutually, turning block (609) are installed on the top of dwang (607).

7. The lifting adjusting device of student desk and chair according to claim 4, characterized in that: two both sides of screw hole (601) all are provided with two spout (610), and every two spout (610) are seted up respectively in the inner wall of two outer standpipes (3), every the equal sliding connection of inner wall of spout (610) has slider (611), and the surface fixed connection of slider (611) and upstand (2).

8. The lifting adjusting device of student desk and chair according to claim 1, characterized in that: guiding mechanism (7) including fixed connection in guide cylinder (701) of connecting frame (5) upper surface, the inner wall sliding connection of guide cylinder (701) has guide bar (702), the top of guide bar (702) with the bottom surface fixed connection of chair face board (1).