CN215125440U - Computer desk with adjustable height - Google Patents

Abstract

The utility model belongs to the technical field of computer desks, in particular to a computer desk with adjustable height, which comprises a bottom frame; the pair of first telescopic devices are oppositely arranged; the movable ends of the two first telescopic devices can be rotatably connected with a placing mechanism, one of the two first telescopic devices can be connected to the underframe in a sliding manner, and the other first telescopic device is arranged on the underframe; wherein, each first telescoping device is used for driving corresponding placing mechanism and removes along vertical direction, and each placing mechanism is used for driving the thing of placing on it and rotates to the adaptation user. Therefore, the height of the computer desk is adjusted, so that the height of the notebook computer and the computer peripheral relative to the ground is adjusted, the use and use requirements of any person are met, people do not need to look up or lean down to see the content on the computer, and the comfort level of a user and the practicability of the computer desk are greatly improved.

Description

Computer desk with adjustable height

Technical Field

The utility model belongs to the technical field of the desk, especially, relate to a but height-adjusting's desk.

Background

The computer desk is used for placing a computer and is an important and common office and living article. Ideally, the screen of the computer should be perpendicular to the user's sight line, that is, the user can comfortably read the contents displayed on the computer screen in a correct sitting posture, however, in the current society, people often need to look down at the display when using the computer, and after a long time, the neck of the person is unreasonably bent, and the probability of the occurrence of cervical spondylosis is greatly increased, so that some people can use other objects to cushion the display, but the display is unstable and the effect is unsatisfactory. In the prior art, most computer desks cannot be lifted, so that the same computer desk cannot meet the use requirements of all people, and the practicability is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but height-adjusting's desk aims at solving the unable height-adjusting of desk among the prior art in order to adapt to user's technical problem.

In order to achieve the above object, an embodiment of the present invention provides a computer desk with adjustable height, which includes a bottom frame; the pair of first telescopic devices are oppositely arranged; the movable ends of the two first telescopic devices can be rotatably connected with a placing mechanism, one of the two first telescopic devices can be connected to the underframe in a sliding mode, and the other first telescopic device is arranged on the underframe; each first telescopic device is used for driving the corresponding placing mechanism to move along the vertical direction, and each placing mechanism is used for driving a placed object on the placing mechanism to rotate so as to adapt to a user.

Optionally, the first telescopic device includes a first movable rod, a first fixed rod, and a first fixed structure disposed on the first fixed rod and used for fixing the first movable rod; the first fixed structure is close to the top end of the first fixed rod, the first fixed rod is provided with an inner cavity, the first movable rod is movably connected in the first fixed rod, and the placing mechanism is rotatably connected to the first movable rod; one of the two first fixing rods is fixedly connected to the bottom frame, and the other first fixing rod is slidably connected to the bottom frame.

Optionally, the first fixing structure is a first threaded hole formed in the first fixing rod and a first bolt pre-installed in the first threaded hole, and the first threaded hole is communicated with an inner cavity of the first fixing rod.

Optionally, the placing mechanism comprises a placing plate, a baffle plate and a connecting piece; the baffle is arranged at the top end of the placing plate to prevent the computer or the computer peripheral from falling; the connecting piece install in place the bottom of board, and with first movable rod rotatable coupling.

Optionally, the connecting member includes a fixing seat, a sleeve, and a third fixing structure disposed on the sleeve; the fixed seat is detachably connected to the bottom surface of the placing plate, and one end of the sleeve is fixedly connected with the fixed seat; the sleeve is sleeved on the first movable rod and can rotate relative to the first movable rod; the third fixing structure is used for fixing the sleeve to prevent the sleeve from rotating.

Optionally, the sleeve has an opening, and the opening penetrates through the left and right end faces of the sleeve in the axial direction of the sleeve; the two ends of the opening are fixedly provided with connecting sheets, the third fixing structure is a third through hole formed in each connecting sheet, a third bolt penetrating through the two third through holes and a nut preassembled on the third bolt.

Optionally, the first movable rod is of a hollow structure, an elastic sheet with a movable end is fixedly arranged in the first movable rod, a pressing part is arranged at the movable end of the elastic sheet, correspondingly, a first through hole for the pressing part to penetrate through is formed in the first movable rod, the pressing part can move relative to the first through hole in the first movable rod, and the first through hole and the elastic sheet are both located at the tail part of the first movable rod; the head of the first fixing rod is provided with a first limiting hole for the pressing part to penetrate through.

Optionally, the height-adjustable computer desk further comprises at least one second telescopic device, wherein a second fixing structure is arranged on the second telescopic device and used for fixing the movable end of the second telescopic device, and the fixed end and the movable end of the second telescopic device are respectively fixedly connected with the first telescopic device.

Optionally, an outer contour of the first fixing rod is circular.

Optionally, an outer contour of the first movable bar is rectangular or circular.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the height-adjustable desk have one of following technological effect at least: in this embodiment, the placing mechanism on the first telescopic device capable of sliding relative to the bottom frame is used for placing a notebook computer, and the placing mechanism on the other first telescopic device fixed on the bottom frame is used for placing computer peripherals such as a keyboard, a mouse and the like or other articles. During the use, the user accessible is adjusted two first telescoping devices and is come two drive respectively and place the mechanism, and then drives notebook computer and computer peripheral hardware respectively and remove along vertical direction to make the user need not to face up the head or the low head just can watch the content on the notebook computer. In addition, the user can also rotate the notebook computer or the computer peripheral equipment by an angle through rotating the placing mechanism, so that the notebook computer or the computer peripheral equipment can better adapt to the user, and the flexibility of the computer desk with adjustable height is greatly improved. Therefore, the height of the computer desk is adjusted, so that the height of the notebook computer and the computer peripheral relative to the ground is adjusted, the use and use requirements of any person are met, people do not need to look up or lean down to see the content on the computer, and the comfort level of a user and the practicability of the computer desk are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a computer desk with adjustable height according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a first telescopic device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a placement mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a connecting member (third bolt and nut are omitted) according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a tail portion (including an elastic piece and a pressing portion) of a first movable rod according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-underframe 20-first telescoping device 30-placing mechanism

40-guide rail sliding block component 21-first movable rod 22-first fixed rod

23-first bolt 31-placing plate 32-baffle

33-connecting piece 331-fixing seat 332-sleeve

333-third through hole 334-third bolt 335-nut

3321 opening 3322 connecting piece 211 elastic piece

2111-pressing part 221-first limiting hole 50-second telescopic device

51-second bolt 52-second movable rod 53-second fixed rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1, there is provided a computer desk with adjustable height, comprising a bottom frame 10; a pair of oppositely arranged first telescopic devices 20 is also included; the movable ends of the two first telescopic devices 20 can be rotatably connected with a placing mechanism 30, one of the two first telescopic devices 20 can be slidably connected to the underframe 10, and the other first telescopic device 20 is arranged on the underframe 10; each of the first telescopic devices 20 is configured to drive the corresponding placing mechanism 30 to move in a vertical direction, and each placing mechanism 30 is configured to drive a placed object thereon to rotate so as to adapt to a user.

Specifically, in the present embodiment, the placing mechanism 30 on the first telescopic device 20 capable of sliding relative to the bottom frame 10 is used for placing a notebook computer, and the other placing mechanism 30 on the first telescopic device 20 fixed on the bottom frame 10 is used for placing a computer peripheral such as a keyboard, a mouse, or other objects. When the portable computer is used, a user can adjust the two first telescopic devices 20 to respectively drive the two placing mechanisms 30, so that the portable computer and the computer peripheral are respectively driven to move in the vertical direction, and the user can watch contents on the portable computer without raising or lowering the head. In addition, the user can rotate the placing mechanism 30 to rotate the notebook computer or the computer peripheral at an angle to better adapt to the user, and the flexibility of the computer desk with adjustable height is greatly improved. Therefore, the height of the computer desk is adjusted, so that the height of the notebook computer and the computer peripheral relative to the ground is adjusted, the use and use requirements of any person are met, people do not need to look up or lean down to see the content on the computer, and the comfort level of a user and the practicability of the computer desk are greatly improved.

In another embodiment of the present invention, as shown in fig. 2, the first telescopic device 20 includes a first movable rod 21, a first fixed rod 22, and a first fixing structure disposed on the first fixed rod 22 and used for fixing the first movable rod 21; the first fixed structure is close to the top end of the first fixed rod 22, the first fixed rod 22 is provided with an inner cavity, the first movable rod 21 is movably connected in the first fixed rod 22, and the placing mechanism 30 is rotatably connected on the first movable rod 21; one of the two first fixing levers 22 is fixedly connected to the base frame 10, and the other first fixing lever 22 is slidably connected to the base frame 10.

Specifically, in the present embodiment, the first movable bar 21 is in a T shape, and the first movable bar 21 includes a vertically arranged vertical bar and a horizontally arranged horizontal bar, the vertical bar is slidably connected to the first fixed bar 22, and the placing mechanism 30 is rotatably connected to the horizontal bar. During adjustment, the fixing structure is released, and the first movable bar 21 is movable in a vertical direction with respect to the first fixed bar 22. The user can raise the first movable rod 21 or lower the first movable rod 21 according to actual conditions, so as to drive the placing mechanism 30 to move upwards or downwards, thus realizing the effect of adjusting the height of the notebook computer or the computer peripheral relative to the ground, and adapting to different people. After the height is adjusted, the first movable rod 21 is fixed by using the fixing structure, the stability of the first movable rod 21 when a user uses a notebook computer or a computer peripheral is ensured, and the first movable rod 21 is prevented from falling, so that the notebook computer or the computer peripheral is damaged, and the practicability and the safety are greatly improved.

In addition, the relative sliding between the first telescopic device 20 and the bottom frame 10 can be realized by the guide rail sliding block assembly 40, the guide rail is fixedly installed on the bottom frame 10, and the bottom end of the first telescopic device 20 is fixedly connected with the sliding block, because the guide rail sliding block assembly 40 is the prior art and is mature, the details are not repeated here. When the computer peripheral does not need to be used, the first telescopic device 20 and the placing mechanism 30 thereon can slide to the user through the guide rail sliding block assembly 40, so that the distance between the user and the notebook computer is shortened, the user can see the computer more clearly, and the practicability is greatly improved.

In another embodiment of the present invention, as shown in fig. 1-2, the first fixing structure is a first threaded hole formed on the first fixing rod 22 and a first bolt 23 pre-installed in the first threaded hole, and the first threaded hole communicates with the inner cavity of the first fixing rod 22.

Specifically, the first threaded hole is near the top end of the first fixing rod 22. During adjustment, the first bolt 23 is screwed out, so that the first movable rod 21 can move relative to the first fixed rod 22, after adjustment, the first bolt 23 is screwed, the first movable rod 21 is fixed through the jacking force of the first bolt 23, and the first movable rod 21 is ensured not to move when a user uses the notebook computer or the computer peripheral. The fixing structure is quite common, is simple to process and assemble, is convenient and quick to use, and is beneficial to reducing the production cost. It is worth mentioning that the closer the first fixing structure is to the top end of the first fixing rod 22, the larger the adjustable range of the first telescopic device 20 is. It can be understood that, when the adjustment ranges are the same, the closer the first fixing structure is to the top end of the first fixing rod 22, the shorter the first movable rod 21 can be, which is beneficial to saving materials and reducing production cost.

In another embodiment of the present invention, as shown in fig. 3, the placing mechanism 30 includes a placing plate 31, a baffle 32, and a connecting member 33; the baffle 32 is arranged at the top end of the placing plate 31 to prevent the computer or the computer peripheral from falling; the connecting member 33 is mounted at the bottom end of the placing plate 31 and is rotatably connected to the first movable rod 21.

Specifically, the direction of the height-adjustable computer desk moving towards the user is taken as the front direction, and the direction is taken as the back direction otherwise. The baffle 32 is close to the front end face of the placing plate 31, and further, the front end face of the baffle 32 is flush with the front end face of the placing plate 31, so that the placing plate 31 has a larger range for placing more articles. Furthermore, an elastic member, such as sponge, is arranged on the rear end face of the baffle 32, so that the notebook computer and the computer peripheral are in non-rigid contact with the baffle 32, and the damage caused by collision of the notebook computer and the computer peripheral is reduced. During the use, thereby place board 31 and be located this and place the foreign object rotation on board 31 through rotating connecting piece 33 drive, like this, but this height-adjusting's desk can adjust notebook computer and computer peripheral hardware outside for the height on ground, can also adjust for the angle on ground, has improved the practicality greatly.

In another embodiment of the present invention, as shown in fig. 4, the connecting member 33 includes a fixing base 331, a sleeve 332, and a third fixing structure disposed on the sleeve 332; the fixed seat 331 is detachably connected to the bottom surface of the placing plate 31, and one end of the sleeve 332 is fixedly connected to the fixed seat 331; the sleeve 332 is sleeved on the first movable rod 21 and can rotate relative to the first movable rod 21; the third fixing structure is used to fix the sleeve 332 so as to prevent the sleeve 332 from rotating.

Specifically, the fixing base 331 is provided with a through hole, correspondingly, the bottom of the placing plate 31 is provided with a threaded hole, and the fixing base 331 is fixed at the bottom of the placing plate 31 through a bolt, so that the fixing base 331 is detachably connected. Not only can reduce the processing degree of difficulty, shorten process time, can also reach the effect of changing alone and placing board 31 or connecting piece 33. It should be noted that, the length direction of the fixing base 331 is perpendicular to the axial direction of the sleeve 332, and there are two through holes on the fixing base 331, and the two through holes are arranged along the length direction of the fixing base 331 and located at two ends of the fixing base 331 respectively, so as to ensure that the fixing base 331 is connected stably and prevent the bolt from interfering with the first movable rod 21 during assembly. During the use, loosen the third fixed knot and construct, thereby it is rotatory to rotate sleeve 332 and drive fixing base 331, placing mechanism 30 and should place the article on the mechanism 30, treats the back of adjusting, fixes connecting piece 33 through the third fixed knot structure, avoids its relative first movable rod 21 to rotate.

Further, two connecting pieces 33 are symmetrically installed on the bottom of each placing plate 31 and are respectively located on two sides of the vertical rod of the first movable rod 21, which is beneficial to improving the stability of the placing plate 31.

Further, in two connecting pieces 33, there is and only one has the third fixed knot to construct, that is to say another connecting piece 33 need not set up the third fixed knot and construct, like this, when adjusting, only need loosen a third fixed knot and just can rotate and place mechanism 30, saved the regulation time greatly to the practicality has been improved.

In another embodiment of the present invention, as shown in fig. 4, the sleeve 332 has an opening 3321, and the opening 3321 penetrates through the left and right end surfaces of the sleeve 332 in the axial direction of the sleeve 332; the two ends of the opening 3321 are fixedly provided with a connecting piece 3322, and the third fixing structure is a third through hole 333 formed in each connecting piece 3322, a third bolt 334 simultaneously passing through the two third through holes 333, and a nut 335 pre-installed on the third bolt 334.

Specifically, the sleeve 332 may be manufactured through a bending process or a fusion casting process or a powder metallurgy process, and the sleeve 332 may be welded to the fixing base 331 through electric welding. The sleeve 332 with the opening 3321 has certain elasticity, and when opposite forces are simultaneously applied to the two connecting pieces 3322, the sleeve 332 deforms. Therefore, when the nut 335 on the third bolt 334 is tightened, the two connecting pieces 3322 move inwards, and the sleeve 332 is deformed to clamp the horizontal rod of the first movable rod 21 under the driving of the connecting pieces 3322, and at this time, the sleeve 332 is fixed and cannot rotate. When the angle needs to be adjusted, the nut 335 is loosened, the two connecting pieces 3322 are reset, and the sleeve 332 is also reset, at this time, the sleeve 332 can rotate relative to the horizontal rod of the first movable rod 21. Thus, the rotatable placement mechanism 30 is realized, the flexibility and the practicability are greatly improved, and the structures of the sleeve 332 and the third fixing structure are extremely simple, so that the production cost is favorably reduced.

In another embodiment of the present invention, as shown in fig. 5, the first movable rod 21 is a hollow structure, an elastic sheet 211 with a movable end is fixedly disposed in the first movable rod 21, a pressing portion 2111 is disposed at a movable end of the elastic sheet 211, correspondingly, a first through hole for the pressing portion 2111 to penetrate is disposed on the first movable rod 21, the pressing portion 2111 can move relative to the first through hole on the first movable rod 21, and the first through hole and the elastic sheet 211 are both located at the tail portion of the first movable rod 21; the head of the first fixing rod 22 is provided with a first limiting hole 221 through which the pressing portion 2111 passes.

Specifically, the elastic sheet 211 has elasticity and is in an inverted V shape, one end of the elastic sheet 211 is fixedly connected in the first movable rod 21, the other end is suspended and can displace, the pressing portion 2111 is a circular boss arranged at one suspended end of the elastic sheet 211, and the circular boss penetrates through a first through hole in the first movable rod 21 and abuts against an inner wall of the first fixing rod 22. First spacing hole 221 is used for supplying circular boss to wear to establish to avoid taking first movable rod 21 out with too big hard when removing first movable rod 21, thereby lead to placing the condition that the article on the mechanism 30 was broken, also avoid first movable rod 21 to bruise the user's the condition, improved safety in utilization. Then, the user can press the circular boss, and under the characteristic of the elastic piece 211, the circular boss moves inwards until the circular boss is separated from the first stopper hole 221, so that the first movable bar 21 can slide in the first fixed bar 22. The elastic piece 211 and the first through hole are disposed at the tail of the first movable rod 21, which is beneficial to expanding the adjustment range of the first telescopic device 20.

Further, a chamfer or a fillet is provided at the top end of the circular boss, and the circular boss is more easily separated from the first limit hole 221 under the guidance of the chamfer or the fillet.

In another embodiment of the present invention, as shown in fig. 1, the height-adjustable computer desk further includes at least one second expansion device 50, the second expansion device 50 is provided with a second fixing structure for fixing the movable end of the second expansion device 50, and the fixed end and the movable end of the second expansion device 50 are respectively fixedly connected to the first expansion device 20.

Specifically, the second telescopic device 50 includes a second fixed rod 53 and a second movable rod 52, the second movable rod 52 is slidably connected in the second fixed rod 53, and the second fixed structure is a second threaded hole provided on the second fixed rod 53 and a second bolt 51 pre-installed in the second threaded hole. The second fixed rod 53 is fixedly connected to the first telescopic device 20 fixedly connected to the base frame 10, and the second movable rod 52 is fixedly connected to the first telescopic device 20 slidably connected to the base frame 10. During adjustment, the second bolt 51 is loosened, the first telescoping device 20 is moved, so that the placing mechanism 30 and the notebook computer on the placing mechanism 30 are driven to move, after the adjustment is carried out to a proper range, the second bolt 51 is screwed, and the second movable rod 52 is fixed through jacking force. Therefore, the practicability of the computer desk with the adjustable height is greatly improved. The two first telescoping devices 20 are connected together through the second telescoping device 50, which is beneficial to improving the overall stability and reducing the vibration amplitude of the first telescoping device 20 after collision, namely the shaking degree. It is worth mentioning that if two or more second telescopic devices 50 are provided, only one second fixing structure may be retained, so that the adjustment efficiency may be improved.

In addition, the second fixing structure may also be an elastic sheet 211 disposed in the second movable rod 52, a circular boss disposed on the elastic sheet 211, a through hole disposed on the second movable rod 52 corresponding to the circular boss, and a plurality of spacing holes disposed at intervals on the second fixing rod 53. This structure is prior art and has been mentioned previously and its working principle will not be described here.

In another embodiment of the present invention, as shown in fig. 1 to 2, the outer contour of the first fixing rod 22 is circular. Specifically, the first fixing rod 22 is cylindrical, and compared with the first fixing rod 22 having a rectangular shape, the cylindrical first fixing rod 22 is smooth and has no edges and corners, so that the injury of a user from the computer desk with adjustable height can be reduced, and the use safety is improved.

In another embodiment of the present invention, as shown in fig. 1-2, the outer contour of the first movable bar 21 is rectangular or circular. In particular, the amount of the solvent to be used,

in the first embodiment, the inner cavity of the first fixing rod 22 is circular, the outer contour of the first movable rod 21 is rectangular or circular, at this time, the first movable rod 21 can not only move along the vertical direction, but also rotate relative to the first fixing rod 22, that is, the placing mechanism 30 and the notebook computer or the computer peripheral located on the placing mechanism 30 can both rotate under the driving of the first movable rod 21, so that the practicability of the computer desk with adjustable height is greatly improved.

In the second embodiment, the inner cavity of the first fixed rod 22 is rectangular, the outer contour of the first movable rod 21 is rectangular, and the first movable rod 21 can only move in the vertical direction.

Third, the inner chamber of the first fixed rod 22 is rectangular, and when the outer contour of the first movable rod 21 is circular, the first movable rod 21 can not only move along the vertical direction, but also rotate relative to the first fixed rod 22, thereby greatly improving the practicability of the computer desk with adjustable height.

In summary, it can be easily understood that, when the inner cavity of the first fixing rod 22 is circular, the first movable rod 21 can rotate relative to the first fixing rod 22 no matter whether the outer contour of the first movable rod 21 is rectangular or circular. This is certainly a point of failure for some users who do not need to turn the first movable lever 21. The popularization of the computer desk with adjustable height is greatly limited. When the inner cavity of the first fixing rod 22 is rectangular, it has two situations as described above, that is, manufacturers can produce two kinds of first movable rods 21 with different outlines according to actual situations, so as to adapt to different groups, thereby greatly expanding the market.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a but height-adjusting's desk, includes the chassis, its characterized in that: the pair of first telescopic devices are oppositely arranged; the movable ends of the two first telescopic devices can be rotatably connected with a placing mechanism, one of the two first telescopic devices can be connected to the underframe in a sliding mode, and the other first telescopic device is arranged on the underframe; each first telescopic device is used for driving the corresponding placing mechanism to move along the vertical direction, and each placing mechanism is used for driving a placed object on the placing mechanism to rotate so as to adapt to a user.

2. The height adjustable computer desk of claim 1, wherein: the first telescopic device comprises a first movable rod, a first fixed rod and a first fixed structure which is arranged on the first fixed rod and used for fixing the first movable rod; the first fixed structure is close to the top end of the first fixed rod, the first fixed rod is provided with an inner cavity, the first movable rod is movably connected in the first fixed rod, and the placing mechanism is rotatably connected to the first movable rod; one of the two first fixing rods is fixedly connected to the bottom frame, and the other first fixing rod is slidably connected to the bottom frame.

3. The height adjustable computer desk of claim 2, wherein: the first fixing structure comprises a first threaded hole formed in the first fixing rod and a first bolt pre-installed in the first threaded hole, and the first threaded hole is communicated with an inner cavity of the first fixing rod.

4. A computer table with adjustable height according to any one of claims 1 to 3, wherein: the placing mechanism comprises a placing plate, a baffle plate and a connecting piece; the baffle is arranged at the top end of the placing plate to prevent the computer or the computer peripheral from falling; the connecting piece install in place the bottom of board, and with first movable rod rotatable coupling.

5. The height adjustable computer desk of claim 4, wherein: the connecting piece comprises a fixed seat, a sleeve and a third fixing structure arranged on the sleeve; the fixed seat is detachably connected to the bottom surface of the placing plate, and one end of the sleeve is fixedly connected with the fixed seat; the sleeve is sleeved on the first movable rod and can rotate relative to the first movable rod; the third fixing structure is used for fixing the sleeve to prevent the sleeve from rotating.

6. The height adjustable computer desk of claim 5, wherein: the sleeve is provided with an opening which penetrates through the left end surface and the right end surface of the sleeve along the axial direction of the sleeve; the two ends of the opening are fixedly provided with connecting sheets, the third fixing structure is a third through hole formed in each connecting sheet, a third bolt penetrating through the two third through holes and a nut preassembled on the third bolt.

7. The height adjustable computer desk of claim 2, wherein: the first movable rod is of a hollow structure, an elastic sheet with a movable end is fixedly arranged in the first movable rod, a pressing part is arranged at the movable end of the elastic sheet, correspondingly, a first through hole for the pressing part to penetrate through is formed in the first movable rod, the pressing part can move relative to the first through hole in the first movable rod, and the first through hole and the elastic sheet are both positioned at the tail part of the first movable rod; the head of the first fixing rod is provided with a first limiting hole for the pressing part to penetrate through.

8. The height adjustable computer desk of claim 1, wherein: but height-adjusting's desk still includes at least one second telescoping device, be provided with the second fixed knot on the second telescoping device and construct for fixing the expansion end of second telescoping device, the stiff end and the expansion end of second telescoping device respectively with two first telescoping device fixed connection.

9. The height adjustable computer desk of claim 2, wherein: the outer contour of the first fixing rod is circular.

10. The height adjustable computer desk of claim 2, wherein: the outer contour of the first movable rod is rectangular or circular.

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