CN220937175U

CN220937175U - Desk height-adjusting mechanism

Info

Publication number: CN220937175U
Application number: CN202322131852.1U
Authority: CN
Inventors: 景艾宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-05-14
Anticipated expiration: 2033-08-09

Abstract

The utility model relates to the technical field of desks, in particular to a desk heightening mechanism which comprises a bottom leg and a desk plate, wherein a first fixed leg and a second fixed leg are fixedly arranged on the left side and the right side of the middle of the top end of the bottom leg respectively, a desk bucket is fixedly arranged at the bottom end of the desk plate, and the bottom end of the desk bucket is fixedly connected with the top ends of the first fixed leg and the second fixed leg; the device is provided with the spout, slider and screw hole, through fixed leg one in the slider of fixed leg two outsides with slider two at spout inside movable mounting, not traditional direct with leg welding, can make fixed leg one slide on the bottom leg in fixed leg two, then use the bolt to aim at the screw hole and fix and can spacing, make things convenient for the classmates of different bodily forms to adjust.

Description

Desk height-adjusting mechanism

Technical Field

The utility model relates to the technical field of desks, in particular to a desk height-adjusting mechanism.

Background

The desk is used for school and school study, the desk is divided into two marks of No. 4 and No. 5, and is respectively used for students in junior middle school and primary school grades, the desk is suggested that the desk and chair of No. 4 are mainly used for students in junior middle school grades, the desk top height of the desk of No. 4 is 67 cm, and for students with special heights, the school can additionally allocate desks and stools;

The prior school desk for middle school students usually uses bolts and holes to adjust and lock when the height is adjusted, the adjusting mechanism has the problems of complex operation and inaccurate adjustment, the students need to repeatedly rotate the bolts and match proper hole positions to lock the height of the school desk, and the process is time-consuming and labor-consuming, not flexible enough and cannot be accurately adjusted to the optimal height suitable for the students;

Secondly, the existing desk has a problem that the desk cannot be moved back and forth to adjust the position of the desk, which is a challenge for students with different body shapes, and certain students may need to get close to or far away from the body of the student to achieve better learning posture and comfort, however, the desk cannot be freely moved back and forth due to the fixability of the design of the bottom legs of the desk;

therefore, a novel desk height adjusting mechanism is provided to solve the problems that the height of a desk cannot be conveniently adjusted and the front and back positions of the desk cannot be adjusted in the prior art.

Disclosure of utility model

The utility model aims to provide a desk height adjusting mechanism which solves the problems that the height of a desk cannot be conveniently adjusted and the front and back positions of the desk cannot be adjusted in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the desk height-adjusting mechanism comprises a bottom leg and a desk plate, wherein a first fixed leg and a second fixed leg are fixedly arranged on the left side and the right side of the middle of the top end of the bottom leg respectively, a desk bucket is fixedly arranged at the bottom end of the desk plate, and the bottom end of the desk bucket is fixedly connected with the top ends of the first fixed leg and the second fixed leg;

the utility model discloses a desk, including the bottom leg, the bottom leg is inboard, the inboard front and back both sides of bottom leg are all fixed mounting has the locating piece, telescopic leg one and telescopic leg two are respectively movable mounting on the top of fixed leg one and fixed leg two, mounting hole one and mounting hole two have been seted up respectively to telescopic leg one and telescopic leg two's top middle part, the equal fixed mounting in bottom left and right sides of desk board has the mounting bracket, the middle part of mounting bracket run through be provided with the bolt with mounting hole two threaded connection, the dead side upside rotation of fixed leg two installs the dwang, the dwang runs through the dead side setting of fixed leg two, the inside bottom rotation of fixed leg two installs the lead screw.

Preferably, the inner sides of the bottom legs are provided with sliding grooves, the outer sides of the first fixing leg and the second fixing leg are respectively fixedly provided with a first sliding block and a second sliding block, and the first sliding block and the second sliding block respectively slide in the sliding grooves.

Preferably, the left end surface and the right end surface of the bottom leg are respectively provided with a first threaded hole in an equidistant manner, the middle parts of the first sliding block and the second sliding block are respectively and transversely provided with a second threaded hole and a third threaded hole in a penetrating manner, and the diameters of the first threaded hole, the second threaded hole and the third threaded hole are consistent.

Preferably, the rotating rod is located at one end of the second fixing leg, a first gear is fixedly installed at the top end of the screw rod, the first gear is meshed with the second gear, and a rotating wheel is fixedly installed at one end, away from the second fixing leg, of the rotating rod.

Preferably, the inside bottom fixed mounting of flexible leg two has the screw thread piece, the screw thread groove has been seted up at the screw thread piece middle part, screw thread piece and lead screw threaded connection, square groove has been vertically seted up at the front middle part of flexible leg two, the width of square groove is greater than the diameter of dwang.

Preferably, the back fixed mounting of fixed leg one and fixed leg two has the extension frame, the extension frame is the U type setting, the grid is installed in the bottom rotation of extension frame, the junction of extension frame and grid is provided with the pivot.

Preferably, the first telescopic leg and the second telescopic leg are fixedly arranged at one end, far away from the table plate, of the hook, through holes are formed in the left end and the right end of the table bucket, and two limiting columns are arranged at the inner bottom end of the table bucket, close to the opening part.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the desk height-adjusting mechanism, the sliding groove, the sliding block and the threaded hole are formed, the first fixing leg is arranged on the outer side of the second fixing leg, the first sliding block and the second sliding block are movably arranged in the sliding groove, the traditional welding between the first fixing leg and the second fixing leg is omitted, the first fixing leg can slide on the bottom leg, and then the first fixing leg and the second fixing leg are fixed by using the bolt to align the threaded hole, so that the desk height-adjusting mechanism can be limited, and is convenient for students of different shapes to adjust.

2. Secondly, this kind of desk height-adjusting mechanism through being provided with fixed leg and flexible leg, when needs adjustment desk height, rotates the runner and drives the dwang and rotate, and then drive the gear one on the dwang and rotate, and gear one drives the gear two on lead screw top and rotate, and the screw rotates the screw thread piece that drives flexible leg two inside bottom and reciprocates, and then takes flexible leg two inside reciprocating in fixed leg two, and flexible leg two goes up and down to rise at this moment, through the drive of extension frame and table fill, goes up and down flexible leg one inside fixed leg one simultaneously, and then carries out altitude mixture control to the table, and convenience personnel operation is simple easy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structures of a second fixed leg and a second telescopic leg of the present utility model;

FIG. 3 is a schematic diagram of the transmission structure of the present utility model;

FIG. 4 is a schematic view of the bottom leg structure of the present utility model;

In the figure: 1. a bottom leg; 101. a positioning block; 102. a chute; 103. a first threaded hole; 2. a first fixed leg; 201. a first telescopic leg; 202. a first mounting hole; 203. a first sliding block; 204. a threaded hole II; 3. a second fixed leg; 301. a second telescopic leg; 302. a second mounting hole; 303. a second slide block; 304. a threaded hole II; 305. a square groove; 306. a hook; 307. a screw block; 4. a table plate; 401. a groove; 402. a mounting frame; 5. a table bucket; 501. a through hole; 502. a limit column; 6. a rotating lever; 601. a gear; 602. a rotating wheel; 7. a screw rod; 8. an extension frame; 801. a grille; 802. a rotating shaft.

Detailed Description

Referring to fig. 1-2, in an embodiment of the present utility model;

Example 1: a desk height-adjusting mechanism comprises a bottom leg 1 and a desk plate 4, wherein a first fixed leg 2 and a second fixed leg 3 are fixedly arranged on the left side and the right side of the middle of the top end of the bottom leg 1 respectively, a desk bucket 5 is fixedly arranged at the bottom end of the desk plate 4, and the bottom end of the desk bucket 5 is fixedly connected with the top ends of the first fixed leg 2 and the second fixed leg 3;

The front side and the rear side of the inner side of the bottom leg 1 are fixedly provided with positioning blocks 101, the top ends of the first fixing leg 2 and the second fixing leg 3 are respectively movably provided with a first telescopic leg 201 and a second telescopic leg 301, the middle parts of the top ends of the first telescopic leg 201 and the second telescopic leg 301 are respectively provided with a first mounting hole 202 and a second mounting hole 302, the left side and the right side of the bottom end of the table plate 4 are fixedly provided with mounting frames 402, the middle part of each mounting frame 402 is provided with a bolt 403 in a penetrating manner in a threaded manner, the first mounting hole 202 is in threaded connection with the second mounting hole 302, the upper side of the front face of the second fixing leg 3 is rotatably provided with a rotating rod 6, the rotating rod 6 is arranged in a penetrating manner in the front face of the second fixing leg 3, and the inner bottom end of the second fixing leg 3 is rotatably provided with a screw rod 7;

The inner sides of the bottom legs 1 are provided with sliding grooves 102, the outer sides of the first fixing leg 2 and the second fixing leg 3 are fixedly provided with a first sliding block 203 and a second sliding block 303 respectively, and the first sliding block 203 and the second sliding block 303 slide in the sliding grooves 102 respectively;

The left end surface and the right end surface of the bottom leg 1 are respectively provided with a threaded hole I103 in an equidistant way, the middle parts of a sliding block I203 and a sliding block II 303 are respectively and transversely provided with a threaded hole II 204 and a threaded hole III 304 which are penetrated and provided with the same diameters;

A hook 306 is fixedly arranged at one end of the first telescopic leg 201 and the second telescopic leg 301 far away from the table plate 4, through holes 501 are formed at the left end and the right end of the table bucket 5, and two limit posts 502 are arranged at the position, close to the mouth, of the inner bottom end of the table bucket 5;

The bottom end of the desk plate 4 is provided with the groove 401, various pens can be temporarily placed in the groove 401, the school bag can be hung at two ends through the hooks 306, the school bag is convenient to use, meanwhile, the two ends of the desk bucket 5 are provided with the through holes 501 for ventilation, and the two limit posts 502 are arranged for limiting books stored in the desk bucket 502 and preventing the books from falling out; when the position of the desk on the bottom leg 1 needs to be adjusted, the bolts are only required to be unscrewed to push the desk, so that the first fixed leg 2 and the second fixed leg 3 move, at this time, the first sliding block 203 and the second sliding block 303 outside the first fixed leg 2 and the second fixed leg 3 are slidably adjusted in the sliding groove 102, and after the adjustment is completed, the bolts penetrate through the first threaded hole 103, the second threaded hole 204 and the third threaded hole 304 to be locked.

Example 2: as can be seen by referring to fig. 2 to 4 of the specification, embodiment 2 differs from embodiment 1 in that: one end of the rotating rod 6 positioned in the second fixed leg 3 is fixedly provided with a first gear 601, the top end of the screw rod 7 is fixedly provided with a second gear 701, the first gear 601 is meshed with the second gear 701, and one end of the rotating rod 6 away from the second fixed leg 3 is fixedly provided with a rotating wheel 602;

a threaded block 307 is fixedly arranged at the bottom end of the inner part of the second telescopic leg 301, a threaded groove is formed in the middle of the threaded block 307, the threaded block 307 is in threaded connection with the screw rod 7, a square groove 305 is vertically formed in the middle of the front surface of the second telescopic leg 301, and the width of the square groove 305 is larger than the diameter of the rotating rod 6;

the back surfaces of the first fixed leg 2 and the second fixed leg 3 are fixedly provided with an extension frame 8, the extension frame 8 is U-shaped, the bottom end of the extension frame 8 is rotatably provided with a grating 801, and the joint of the extension frame 8 and the grating 801 is provided with a rotating shaft 802;

when the height of the desk needs to be adjusted, the rotating wheel 602 drives the rotating rod 6 to rotate, the first gear 601 on the rotating rod 6 is driven to rotate, the first gear 601 on the rotating rod 6 drives the second gear 701 on the top end of the screw rod 7 to rotate, the screw rod 7 at this time rotates to drive the threaded block 307 at the bottom end inside the second telescopic leg 301 to move up and down, the second telescopic leg 301 is further moved up and down inside the second fixed leg 3, at this time, the second telescopic leg 301 is lifted and heightened, and the first telescopic leg 201 is lifted and lowered inside the first fixed leg 2 simultaneously by the driving of the extension frame 8 and the desk bucket 5, so that the height of the desk 4 is adjusted, and the desk is convenient for personnel to operate, and is simple and easy.

Claims

1. The utility model provides a desk height-adjusting mechanism, includes bottom leg (1) and table (4), the left and right sides at the top middle part of bottom leg (1) is fixed mounting respectively and is fixed leg one (2) and fixed leg two (3), the bottom fixed mounting of table (4) has a table bucket (5), the bottom of table bucket (5) with fixed leg one (2), the top fixed connection of fixed leg two (3);

The novel telescopic table is characterized in that positioning blocks (101) are fixedly arranged on the front side and the rear side of the inner side of the bottom leg (1), a telescopic leg I (201) and a telescopic leg II (301) are movably arranged on the top ends of the fixed leg I (2) and the fixed leg II (3) respectively, a mounting hole I (202) and a mounting hole II (302) are formed in the middle of the top ends of the telescopic leg I (201) and the telescopic leg II (301) respectively, mounting frames (402) are fixedly arranged on the left side and the right side of the bottom end of the table plate (4), bolts (403) are arranged in the middle of the mounting frames (402) in a penetrating mode, the first mounting holes (202) are in threaded connection with the second mounting holes (302), a rotating rod (6) is installed on the upper side of the front face of the fixed leg II (3) in a rotating mode, the rotating rod (6) penetrates through the front face of the fixed leg II (3), and a screw rod (7) is installed on the bottom end inside the fixed leg II (3).

2. The desk elevating mechanism as set forth in claim 1, wherein: the sliding grooves (102) are formed in the inner sides of the bottom legs (1), the first sliding block (203) and the second sliding block (303) are fixedly arranged on the outer sides of the first fixing leg (2) and the second fixing leg (3) respectively, and the first sliding block (203) and the second sliding block (303) slide in the sliding grooves (102) respectively.

3. A desk elevating mechanism as set forth in claim 2, wherein: the left end face and the right end face of the bottom leg (1) are respectively provided with a first threaded hole (103) in an equidistant mode, the middle parts of the first sliding block (203) and the second sliding block (303) are respectively and transversely provided with a second threaded hole (204) and a third threaded hole (304) in a penetrating mode, and the diameters of the first threaded hole (103), the second threaded hole (204) and the third threaded hole (304) are consistent.

4. The desk elevating mechanism as set forth in claim 1, wherein: the rotating rod (6) is located at one end inside the fixed leg II (3) and is fixedly provided with a first gear (601), the top end of the screw rod (7) is fixedly provided with a second gear (701), the first gear (601) is meshed with the second gear (701), and one end, far away from the fixed leg II (3), of the rotating rod (6) is fixedly provided with a rotating wheel (602).

5. The desk elevating mechanism as set forth in claim 1, wherein: the telescopic leg two (301) is characterized in that a threaded block (307) is fixedly arranged at the bottom end of the interior of the telescopic leg two (301), a threaded groove is formed in the middle of the threaded block (307), the threaded block (307) is in threaded connection with a screw rod (7), a square groove (305) is vertically formed in the middle of the front face of the telescopic leg two (301), and the width of the square groove (305) is larger than the diameter of the rotating rod (6).

6. The desk elevating mechanism as set forth in claim 1, wherein: the novel lifting device is characterized in that an extension frame (8) is fixedly arranged on the back sides of the first fixing leg (2) and the second fixing leg (3), the extension frame (8) is in a U-shaped arrangement, a grid (801) is rotatably arranged at the bottom end of the extension frame (8), and a rotating shaft (802) is arranged at the joint of the extension frame (8) and the grid (801).

7. The desk elevating mechanism as set forth in claim 1, wherein: one end of the first telescopic leg (201) and one end of the second telescopic leg (301) which are far away from the table plate (4) are fixedly provided with hooks (306), the left end and the right end of the table bucket (5) are respectively provided with a through hole (501), and two limiting columns (502) are arranged at the position, close to the opening, of the inner bottom end of the table bucket (5).