Liftable desk

Abstract

The utility model discloses a liftable desk which comprises a desk panel, lifting frames are fixedly installed at the positions, close to the two ends, of the lower surface of the desk panel, trundles are fixedly installed at the positions, close to the two ends, of the lower surfaces of the lifting frames, a semicircular sliding groove is formed in the upper surface of the desk panel, and a book frame is arranged in the semicircular sliding groove. The lifting frame comprises a bottom plate, a supporting rod, a sleeve, a transverse rod, a sliding sleeve, a telescopic spring and a plug pin pile. According to the liftable desk, the height of the desk panel can be adjusted through the lifting frame, so that the desk can ascend and descend, the adjusting process is more convenient, the adjusting mode is simpler, bolts do not need to be frequently screwed, and the position, direction and inclination angle of a clamped and fixed book can be adjusted through the semicircular sliding grooves and the book frame; the adjusting process is easy, the lower end position of a read and watched book is fixed, a page is clamped, and the clamping position can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of desk structure technology, and in particular to a height-adjustable desk. Background Technology

[0002] A desk provides a quiet and tidy space for studying and working. Whether it's a child completing schoolwork or an adult handling work tasks, a desk is an indispensable tool that helps people focus on reading, writing, calculating, and thinking. At a desk, people can engage in various learning and self-improvement activities, such as reading books and learning new knowledge. A desk provides a focused and comfortable learning environment that helps people grow and progress. Desks also often have other functions, such as serving as a dining table, work table, or leisure table, to meet people's diverse life needs.

[0003] The basic structure of a desk consists of a desktop, legs, and possibly drawers and other accessories. These parts together constitute a complete and practical desk system. In existing technology, desks are height-adjusted by adjusting the bolts on the legs and the height of the desktop. When reading, the books need to be laid flat on the desktop. Several problems exist in the use of desks: first, when raising or lowering the desktop, the bolts need to be frequently tightened and loosened, which is not convenient or labor-saving; second, there is no book clamping bracket on the desktop, so the position, direction, and tilt angle of the clamped books cannot be adjusted. Utility Model Content

[0004] The main purpose of this utility model is to provide a height-adjustable desk, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A height-adjustable desk includes a desk panel, a lifting frame fixedly installed on the lower surface of the desk panel near both ends, casters fixedly installed on the lower surface of the lifting frame near both ends, and a semi-circular groove provided on the upper surface of the desk panel, with a book shelf inside the semi-circular groove.

[0007] Preferably, the lifting frame includes a base plate, support rods, sleeves, crossbars, sliding sleeves, telescopic springs, and pins.

[0008] Preferably, the support rod is fixedly installed on the upper surface of the base plate near both ends, the sleeve is fixedly installed on the lower surface of the desk panel near both ends, and the upper end of the support rod is inserted into the sleeve.

[0009] Preferably, the sliding sleeve is fitted on the outside of the crossbar, the telescopic spring is located inside the sliding sleeve, and there are two pins. One pin is fixedly installed at the rear end of the crossbar, and the other pin is fixedly installed at the front end of the sliding sleeve. The front end of the pin passes through the through hole on the outside of the sleeve and is inserted into the through hole at the upper end of the support rod. There are several through holes on the outside of the sleeve, and the through holes on the outside of the sleeve are evenly distributed.

[0010] Preferably, the book shelf includes a limiting slide plate, a limiting sleeve, a movable base, a four-sided pin, a limiting pin sleeve, a rubber collar, a book back plate, a limiting slide groove, a sponge pad, a slider, a book pressing strip, a semi-circular sponge block, and a semi-circular rubber ring.

[0011] Preferably, the limiting slide plate is disposed inside the semi-circular slide groove, the limiting sleeve is fixedly installed on the upper surface of the limiting slide plate, the movable base is disposed inside the limiting sleeve, the four-sided pin is fixedly installed at both ends of the movable base, the limiting pin sleeve is inserted into the through holes on both sides of the limiting sleeve, the rubber collar is fixedly installed inside the limiting pin sleeve at the front end, the limiting pin sleeve is sleeved on the outside of the four-sided pin, the triangular retaining strip on the outside of the limiting pin sleeve is engaged in the retaining groove of the through hole on the side of the limiting sleeve, and the limiting sleeve has several retaining grooves in the through hole, which are evenly distributed.

[0012] Preferably, the book backrest is fixedly installed on the upper surface of the movable base, the limiting groove is opened on the front surface of the book backrest, the sponge pad is fixedly installed on the inner front surface of the book backrest, the slider is located inside the limiting groove near both ends, the lower end of the book pressure strip is fixedly installed inside the slider, the semi-circular sponge block is fixedly installed on the front surface of the book pressure strip at the upper end, the semi-circular rubber ring is fixedly installed on the outer side of the semi-circular sponge block, and the outer side of the semi-circular rubber ring has vertical grooves. There are five vertical grooves on the outer side of the semi-circular rubber ring, and the vertical grooves on the outer side of the semi-circular rubber ring are evenly distributed.

[0013] This utility model features a lifting frame that allows for adjusting the height of the desk panel, making the desk more convenient and simpler to adjust without the need for frequent screwing.

[0014] The semi-circular slide and book shelf allow for adjustment of the position, direction, and tilt angle of the book being held in place. The adjustment process is easy, the bottom of the book being read and viewed is fixed, the pages are held in place, and the holding position can be adjusted. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a height-adjustable desk according to the present invention;

[0016] Figure 2 This is an exploded view of the lifting frame structure of a height-adjustable desk according to the present invention;

[0017] Figure 3 This is an exploded view of the bookcase structure of a height-adjustable desk according to this utility model;

[0018] Figure 4 This utility model relates to a height-adjustable desk. Figure 2 Enlarged diagram of part A in the middle;

[0019] Figure 5 This utility model relates to a height-adjustable desk. Figure 3 Enlarged diagram of section B;

[0020] Figure 6 This utility model relates to a height-adjustable desk. Figure 3 Enlarged diagram of section C.

[0021] In the diagram: 1. Desk panel; 2. Lifting frame; 201. Base plate; 202. Support rod; 203. Sleeve; 204. Crossbar; 205. Sliding sleeve; 206. Telescopic spring; 207. Pin post; 3. Casters; 4. Semi-circular slide groove; 5. Book shelf; 501. Limiting slide plate; 502. Limiting sleeve; 503. Movable base; 504. Four-sided pin; 505. Limiting pin sleeve; 506. Rubber collar; 507. Book backrest; 508. Limiting slide groove; 509. Sponge pad; 510. Slider; 511. Book pressing strip; 512. Semi-circular sponge block; 513. Semi-circular rubber ring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-6 As shown, a height-adjustable desk includes a desk panel 1. A lifting frame 2 is fixedly installed on the lower surface of the desk panel 1 near both ends. Casters 3 are fixedly installed on the lower surface of the lifting frame 2 near both ends. A semi-circular groove 4 is formed on the upper surface of the desk panel 1. A book shelf 5 is provided inside the semi-circular groove 4. The lifting frame 2 can adjust the height of the desk panel 1, making the desk height-adjustable. The adjustment process is more convenient and simpler, without the need for frequent tightening of bolts. The semi-circular groove 4 and the book shelf 5 allow the position, direction, and tilt angle of the book being held and fixed to be adjusted. The adjustment process is easy. The lower end of the book for reading and viewing is fixed, and the pages are held and the holding position can be adjusted.

[0024] In this embodiment, the lifting frame 2 includes a base plate 201, a support rod 202, a sleeve 203, a crossbar 204, a sliding sleeve 205, a telescopic spring 206, and a pin 207.

[0025] In this embodiment, the support rod 202 is fixedly installed on the upper surface of the base plate 201 near both ends, and the sleeve 203 is fixedly installed on the lower surface of the desk panel 1 near both ends, with the upper end of the support rod 202 inserted into the sleeve 203.

[0026] In this embodiment, the sliding sleeve 205 is sleeved on the outside of the crossbar 204, the telescopic spring 206 is disposed inside the sliding sleeve 205, and two pins 207 are provided. One pin 207 is fixedly installed at the rear end of the crossbar 204, and the other pin 207 is fixedly installed at the front end of the sliding sleeve 205. The front end of the pin 207 passes through the through hole on the outside of the sleeve 203 and inserts into the through hole at the upper end of the support rod 202. Several through holes are provided on the outside of the sleeve 203. The side through holes are evenly distributed. When adjusting the height of the desk panel 1, pull the crossbar 204 so that the front end of the crossbar 204 is inserted into the inside of the sliding sleeve 205. The telescopic spring 206 is compressed, allowing the front end of the pin 207 to be pulled out from the through hole at the upper end of the support rod 202. After adjusting the position of the desk panel 1, let the front end of the pin 207 pass through the corresponding through hole on the outside of the sleeve 203 and insert it into the through hole at the upper end of the support rod 202. Release the crossbar 204, and the telescopic spring 206 inside the sliding sleeve 205 returns to its original state.

[0027] In this embodiment, the book shelf 5 includes a limiting slide plate 501, a limiting sleeve 502, a movable base 503, a four-sided pin 504, a limiting pin sleeve 505, a rubber collar 506, a book backing plate 507, a limiting slide groove 508, a sponge pad 509, a slider 510, a book pressing strip 511, a semi-circular sponge block 512, and a semi-circular rubber ring 513.

[0028] In this embodiment, the limiting slide plate 501 is disposed inside the semi-circular slide groove 4, the limiting sleeve 502 is fixedly installed on the upper surface of the limiting slide plate 501, the movable base 503 is disposed inside the limiting sleeve 502, the four-sided pin 504 is fixedly installed at both ends of the movable base 503, the limiting pin sleeve 505 is inserted into the through holes on both sides of the limiting sleeve 502, the rubber collar 506 is fixedly installed inside the limiting pin sleeve 505 at the front end, the limiting pin sleeve 505 is sleeved on the outside of the four-sided pin 504, the triangular retaining strip on the outside of the limiting pin sleeve 505 is engaged in the retaining groove of the through hole on the side of the limiting sleeve 502, and the through hole of the limiting sleeve 502 is... The inner slot has several slots, which are evenly distributed in the through hole of the limiting sleeve 502. When adjusting the position, direction and tilt angle of the book for reading, the limiting pin sleeve 505 is pulled out from the through hole on the side of the limiting sleeve 502. After adjusting the tilt angle of the movable base 503, the limiting pin sleeve 505 is inserted into the through hole on the side of the limiting sleeve 502. The triangular strip on the outside of the limiting pin sleeve 505 is inserted into the corresponding slot in the through hole of the limiting sleeve 502. The rubber collar 506 plays a role in anti-slip. The tilt angle of the movable base 503 is fixed by the four-sided pin 504. The limiting slide plate 501 can slide inside the semi-circular slide groove 4.

[0029] In this embodiment, the book backrest 507 is fixedly installed on the upper surface of the movable base 503, the limiting groove 508 is formed on the front surface of the book backrest 507, the sponge pad 509 is fixedly installed on the inner front surface of the book backrest 507, the slider 510 is located inside the limiting groove 508 near both ends, the lower end of the book pressure strip 511 is fixedly installed inside the slider 510, the semi-circular sponge block 512 is fixedly installed on the upper end of the front surface of the book pressure strip 511, and the semi-circular rubber ring 513 is fixedly installed on the outer side of the semi-circular sponge block 512. The outer side of the semi-circular rubber ring 513 has a vertical groove. Five vertical grooves are provided on the outer side of the rubber ring 513. The vertical grooves on the outer side of the semi-circular rubber ring 513 are evenly distributed. When a book is to be clamped, the book is inserted into the book backing plate 507. The sponge pad 509 presses down on the bottom of the book, and the front end of the book pressing strip 511 presses down on the page. The slider 510 can slide within the limiting groove 508, which can adjust the position of the book pressing strip 511. The position of pressing down on the page also changes accordingly. The semi-circular sponge block 512 makes the semi-circular rubber ring 513 fit the page surface more closely. The semi-circular rubber ring 513 plays a role in anti-slip. The vertical grooves of the semi-circular rubber ring 513 increase the friction.

[0030] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.

Claims

1. A height adjustable desk, characterized by: The desk panel (1) includes a lifting frame (2) fixedly installed on the lower surface of the desk panel (1) near both ends, and casters (3) fixedly installed on the lower surface of the lifting frame (2) near both ends. A semi-circular groove (4) is provided on the upper surface of the desk panel (1), and a book shelf (5) is provided inside the semi-circular groove (4).

2. The lift desk of claim 1, wherein: The lifting frame (2) includes a base plate (201), a support rod (202), a sleeve (203), a crossbar (204), a sliding sleeve (205), a telescopic spring (206), and a pin (207).

3. A height adjustable desk as claimed in claim 2, wherein: The support rod (202) is fixedly installed on the upper surface of the base plate (201) near both ends, and the sleeve (203) is fixedly installed on the lower surface of the desk panel (1) near both ends. The upper end of the support rod (202) is inserted into the sleeve (203).

4. A height adjustable desk as claimed in claim 3, wherein: The sliding sleeve (205) is sleeved on the outside of the crossbar (204), the telescopic spring (206) is located inside the sliding sleeve (205), and there are two pins (207). One of the pins (207) is fixedly installed at the rear end of the crossbar (204), and the other pin is fixedly installed at the front end of the sliding sleeve (205). The front end of the pin (207) passes through the through hole on the outside of the sleeve (203) and is inserted into the through hole at the upper end of the support rod (202). There are several through holes on the outside of the sleeve (203), and the through holes on the outside of the sleeve (203) are evenly distributed.

5. A height adjustable desk as claimed in claim 4, wherein: The book shelf (5) includes a limiting slide plate (501), a limiting sleeve (502), a movable base (503), a four-sided pin (504), a limiting pin sleeve (505), a rubber collar (506), a book backing plate (507), a limiting slide groove (508), a sponge pad (509), a slider (510), a book pressing strip (511), a semi-circular sponge block (512), and a semi-circular rubber ring (513).

6. A height adjustable desk as claimed in claim 5, wherein: The limiting slide plate (501) is located inside the semi-circular slide groove (4). The limiting sleeve (502) is fixedly installed on the upper surface of the limiting slide plate (501). The movable base (503) is located inside the limiting sleeve (502). The four-sided pin (504) is fixedly installed at both ends of the movable base (503). The limiting pin sleeve (505) is inserted into the through holes on both sides of the limiting sleeve (502). The rubber collar (506) is fixedly installed inside the limiting pin sleeve (505) at the front end. The limiting pin sleeve (505) is sleeved on the outside of the four-sided pin (504). The triangular clip on the outside of the limiting pin sleeve (505) is inserted into the slot of the through hole on the side of the limiting sleeve (502). The limiting sleeve (502) has several slots in the through hole, and the slots in the through hole are evenly distributed.

7. A height adjustable desk as claimed in claim 6, wherein: The book backrest (507) is fixedly installed on the upper surface of the movable base (503). The limiting slide groove (508) is opened on the front surface of the book backrest (507). The sponge pad (509) is fixedly installed on the inner front surface of the book backrest (507). The slider (510) is located inside the limiting slide groove (508) near both ends. The lower end of the book pressing strip (511) is fixedly installed inside the slider (510). The semi-circular sponge block (512) is fixedly installed on the upper end of the front surface of the book pressing strip (511). The semi-circular rubber ring (513) is fixedly installed on the outer side of the semi-circular sponge block (512). The outer side of the semi-circular rubber ring (513) has a vertical groove. There are five vertical grooves on the outer side of the semi-circular rubber ring (513). The vertical grooves on the outer side of the semi-circular rubber ring (513) are evenly distributed.

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