Desk with adjustable height

Abstract

The utility model discloses a height-adjustable desk which comprises a desk plate, a drawer is arranged at the bottom of the desk plate, supporting legs are arranged on the two sides of the drawer respectively, each supporting leg comprises a support, a supporting foot and an adjustable column, each adjustable column comprises an inner supporting pipe and an outer supporting pipe, each support is connected to the top of the corresponding inner supporting pipe, each supporting foot is connected to the bottom of the corresponding outer supporting pipe, and each supporting foot is connected to the top of the corresponding outer supporting pipe. The inner supporting pipe is provided with at least one row of gear holes arranged at equal intervals in the height direction, each row of gear holes is provided with an auxiliary hole in a matched mode, an elastic piece is arranged in each auxiliary hole, each elastic piece is provided with a gear protrusion embedded into the corresponding gear hole, the inner supporting pipe is further provided with a row of limiting holes matched with the gear holes in vertical height in a one-to-one mode, and the limiting holes are matched with the gear holes in a one-to-one mode. A side hole is formed in the side face of the outer supporting pipe, an inner threaded pipe fixedly connected with the outer supporting pipe is arranged outside the side hole, a limiting stud is connected into the inner threaded pipe in a threaded mode, and a rotary knob is arranged at one end of the limiting stud. The desk has the advantages of being adjustable in height, safe and convenient to adjust, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching supplies, and more particularly to a height-adjustable desk. Background Art

[0002] To make a desk suitable for students of different heights, it needs to be height-adjustable. Existing height-adjustable desks on the market, once the height limit is removed, allow the table and drawers to be freely adjusted in height. However, due to the heavy mass of the combined table and drawers, they will drop rapidly after the height limit is removed, posing a significant safety hazard during adjustment and resulting in poor overall performance. Accordingly, the present utility model provides a height-adjustable desk. Utility Model Content

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a height-adjustable desk, which has the characteristics of being height-adjustable and safe and convenient to adjust.

[0004] In order to solve the above technical problems, the purpose of the present invention is achieved as follows: the utility model relates to a height-adjustable desk, comprising a table top, a drawer is provided at the bottom of the table top, and support legs with adjustable height are provided on both sides of the drawer, the support legs include a bracket connected to the drawer, a support leg supported on the ground, and an adjustable column connected between the bracket and the support leg, the adjustable column includes an inner support tube and an outer support tube extending vertically up and down, the outer support tube is slidably connected to the outside of the inner support tube, the bracket is connected to the top of the inner support tube, the support leg is connected to the bottom of the outer support tube, and the inner support tube is provided with at least one row of height-adjustable support legs. The gear holes are arranged equidistantly, and each row of the gear holes is matched with at least one process hole opened on the outer support tube. A spring piece connected to the outer support tube is provided in the process hole, and a gear protrusion embedded in the gear hole is provided on the spring piece. The gear protrusion is spherical. A row of limiting holes that match the vertical height of the gear holes are also provided on the inner support tube. A side hole coaxially arranged with one of the limiting holes is provided on the side of the outer support tube. An internal threaded tube fixedly connected to the outer support tube is provided outside the side hole. The internal threaded tube is connected to a limiting stud that can be inserted into one of the limiting holes, and a knob for controlling rotation is provided at one end of the limiting stud.

[0005] The present invention is further configured as follows: the outer contour of the inner support tube matches the inner contour of the outer support tube, and the inner support tube is in a non-rotating column shape.

[0006] In summary, the utility model has the following beneficial effects: the height-adjustable desk involved in the utility model can make the inner support tube move up and down relative to the outer support tube by unscrewing the limit stud from the limit hole. During the movement, the elastic gear protrusion cooperates with the gear hole, so that the inner support tube cannot fall quickly relative to the outer support tube, and the stay position of each gear hole just aligns the side hole with the pipe mouth of the internal threaded tube, which is convenient for inserting the screwed-in limit stud. The height is adjustable, the adjustment is safe and convenient, the overall function is complete, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0008] Figure 2 It is a partial structural diagram of the utility model. DETAILED DESCRIPTION

[0009] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent claims of the present invention. Based on the examples in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0010] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0011] Example 1

[0012] See also Figure 1 and Figure 2As shown, a height-adjustable desk involved in this embodiment includes a table top 1, a drawer 2 is provided at the bottom of the table top 1, and support legs with adjustable height are provided on both sides of the drawer 2. The support legs include a bracket 3 connected to the drawer, a support leg 4 supported on the ground, and an adjustable column 5 connected between the bracket and the support leg. The adjustable column 5 includes an inner support tube 501 and an outer support tube 502 extending vertically up and down, and the outer support tube 502 is slidably connected to the outside of the inner support tube 501. The bracket 3 is connected to the top of the inner support tube 501, and the support leg 4 is connected to the bottom of the outer support tube 502. The inner support tube 501 is provided with at least one row of gear holes 503 arranged equidistantly along the height direction, and each row of the gear holes 503 has a gear hole 503 arranged equidistantly. 03 is matched with at least one process hole 504 opened on the outer support tube, and a spring piece 505 connected to the outer support tube is provided in the process hole 504, and a gear protrusion 506 embedded in the gear hole is provided on the spring piece 505, and the gear protrusion 506 is spherical. A row of limiting holes 507 that match the vertical height of the gear holes are also provided on the inner support tube 501, and a side hole 508 that is coaxial with one of the limiting holes is provided on the side of the outer support tube 502. An internal threaded tube 509 fixedly connected to the outer support tube is provided outside the side hole 508. The internal threaded tube 509 is connected to a limiting stud 510 that can be inserted into the limiting hole through an internal thread. A knob 511 for controlling the rotation is provided at one end of the limiting stud 510.

[0013] In this embodiment, the height adjustment function is achieved by rotating the limit screw 510 outward using the knob 511 until the limit screw 510 is removed from the limit hole 507. At this point, a slight upward or downward movement of the inner support tube 501 relative to the outer support tube 502 is performed. After the height adjustment is completed, the limit screw 510 is rotated inward using the knob 511 again until the limit screw 510 is inserted into the limit hole 507 again, restricting the inner support tube 501 from moving up and down relative to the outer support tube 502, thereby completing the height adjustment of the desk.

[0014] Example 2

[0015] See also Figure 1 and Figure 2 As shown, the height-adjustable desk involved in this embodiment is further configured on the basis of Example 1, in which the outer contour of the inner support tube 501 matches the inner contour of the outer support tube 502, and the inner support tube 501 is in a non-rotating columnar shape.

[0016] In this embodiment, by setting the outer contour of the inner support tube 501 to match the inner contour of the outer support tube 502, and setting the inner support tube 501 to a non-rotating columnar structure, a circumferential limiting effect is achieved on the inner support tube 501, limiting the relative rotation of the two.

[0017] The height-adjustable desk involved in the utility model can make the inner supporting tube move up and down relative to the outer supporting tube by unscrewing the limiting screw from the limiting hole. During the movement, the elastic gear protrusion cooperates with the gear hole, so that the inner supporting tube cannot fall quickly relative to the outer supporting tube, and each gear hole stays in a position that aligns the side hole with the pipe mouth of the internal threaded tube, making it convenient to insert the screwed-in limiting screw. The height is adjustable, the adjustment is safe and convenient, the overall function is complete, and the practicality is strong.

[0018] Unless otherwise specified, in the present invention, if there are terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationship, they are based on the orientation or positional relationship actually shown and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can combine the embodiments and understand the specific meanings of the above terms according to specific circumstances.

[0019] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0020] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A height-adjustable desk, comprising a table top, a drawer disposed at the bottom of the table top, and height-adjustable support legs disposed on either side of the drawer, the support legs comprising a bracket connected to the drawer, a support leg supported on the ground, and an adjustable column connected between the bracket and the support leg, characterized in that: The adjustable column comprises an inner support tube and an outer support tube extending vertically up and down, the outer support tube being slidably connected to the outside of the inner support tube, the bracket being connected to the top of the inner support tube, and the support leg being connected to the bottom of the outer support tube. The inner support tube is provided with at least one row of gear holes arranged equidistantly along the height direction, and each row of the gear holes is matched with at least one process hole opened on the outer support tube, the process hole is provided with a spring piece connected to the outer support tube, the spring piece is provided with a gear protrusion embedded in one of the gear holes, and the gear protrusion is spherical. The inner support tube is also provided with a row of limit holes that match the vertical height of the gear holes one by one. The side surface of the outer support tube is provided with a side hole coaxially arranged with one of the limit holes, and the side hole is provided with an internal threaded tube fixedly connected to the outer support tube, and the internal threaded tube is connected to a limit stud that can be inserted into one of the limit holes, and one end of the limit stud is provided with a knob for controlling rotation.

2. The height-adjustable desk according to claim 1, characterized in that: The outer contour of the inner support tube matches the inner contour of the outer support tube, and the inner support tube is in a non-rotating column shape.

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