CN201097784Y - height adjustable folding table - Google Patents

Abstract

A folding table with adjustable desktop height comprises a desktop panel (1) and a foldable support frame thereof, wherein the support frame comprises: a base (21), a vertical rod (22) fixed on the base (21), the desktop panel (1) being movably connected to the vertical rod (22) via a cantilever device (23); the cantilever device (23) is provided with a vertical rod hinge end tensioning device (24), and the horizontal height of the desktop panel (1) can be adjusted within a certain range by loosening the vertical rod hinge end tensioning device (24), and the horizontal height of the desktop panel (1) can be fixed by tightening the vertical rod hinge end tensioning device (24). The folding table with adjustable desktop height of the utility model can adjust the height of the desktop panel within a large range, is simple and quick to operate, is easy to fold, and has a small storage volume. It is very suitable for use as a temporary workbench in airports, stations, kitchens, bedrooms, etc., and is particularly suitable for placing laptops.

Description

height adjustable folding table

technical field

The utility model relates to a workbench, in particular to a folding table with an adjustable tabletop height.

Background technique

In daily life, the use of laptop computers has become more and more popular, but when people are waiting at airports and stations, or when they want to use laptop computers in bedrooms, kitchens and other places, it is difficult to find a suitable work surface, so people have to use laptop computers. Laptops are rested on laps, seat armrests or kitchen panels, but this is very inconvenient to operate, and the laptop may fall to the ground due to unstable placement, so people urgently need a It is a simple and convenient folding table, and the height of the working surface of the folding table can be adjusted in a large range so that people can operate it conveniently when standing or sitting down. And the existing folding table with adjustable desktop height has a lifting mechanism on the four table legs, but its height adjustment range of the folding table of this structure is limited, and it is very inconvenient to use to adjust the four table legs respectively. For example, the Chinese utility model patent whose application number is 03231809.X is to set a row of buckles at the bottom of the desktop from the inside to the outside, and a movable support frame of the desktop is respectively buckled with these buckles to achieve the purpose of adjusting the height of the desktop. Although the folding table of this structure can adjust the desktop height easily, its height adjustment range is very limited, and it cannot satisfy people's needs equally.

Utility model content

The technical problem to be solved by the utility model is to provide a height-adjustable folding table that can adjust the height of the tabletop in a wide range and is convenient to use.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is to design and manufacture a folding table with an adjustable tabletop height, including a tabletop board and a foldable support frame thereof, wherein:

The support frame includes: a base, a vertical rod fixed on the base, and the desktop board is movably connected with the vertical rod through a cantilever device;

One end of the cantilever device is hinged to the vertical rod, and the other end is connected to the desktop board. The cantilever device is provided with an elastic device at the hinged end of the vertical rod, and the elastic device at the hinged end of the vertical rod can be adjusted within a certain range The horizontal height of the desktop board, tightening the elastic device at the hinged end of the vertical rod will make the horizontal height of the desktop board fixed.

The cantilever device includes an upper cantilever, a lower cantilever and a coupling block parallel to each other; the inner ends of the upper and lower cantilever are respectively hinged with the vertical rod, and the outer ends of the upper and lower cantilever are respectively hinged with the connecting The upper and lower ends of the rear part of the block, the desktop board is clamped on the front part of the connecting block, this structure can keep the horizontal angle of the desktop board unchanged when the height of the desktop board is adjusted up and down.

A first clamp that is sleeved on the vertical rod is installed below the hinged end of the vertical rod and the upper cantilever, and the inner end of the lower cantilever is hinged to the first clamp; when the first clamp is released, The first clamp can slide up and down along the pole so that it can be folded up conveniently.

The elastic device at the hinged end of the vertical rod is a threaded adjustment handle acting on the hinge of the upper cantilever and the vertical rod, which is very convenient to operate.

The connecting block is composed of two vertical plates on the left and right, and is connected to the desktop board through a clamping block. The front part of the clamping block has a U-shaped clamping groove that can clamp the desktop board, and a vertical connection is fixed on the rear part. The vertical connecting plate is hinged between the left and right vertical plates of the connecting block.

In addition, the utility model also includes a desktop inclination adjustment device, which includes a vertical eccentric wheel and a control handle, the vertical eccentric wheel is hinged between the left and right vertical plates of the connecting block, and is hinged to the vertical connecting plate The top surface behind the point is against the top surface, and the control handle is fixedly connected with the vertical eccentric wheel and protrudes outside the coupling block. The inclination angle of the desktop board can be adjusted according to the user's needs by turning the control handle.

There are two through holes on the left and right on the bottom plate of the U-shaped clamping groove of the clamp block, and two shrapnels are respectively arranged on the horizontal and vertical directions on the desktop board, and the bottom of the shrapnel is fixed with a spring that can just extend into the through hole. The positions of the protrusions at the bottom of the horizontal and vertical elastic pieces correspond to the positions of the two through holes at the bottom of the U-shaped clip groove. In this way, the desktop board can be conveniently and firmly clamped at the clamping groove, and the desktop board can be placed horizontally or vertically as required.

The base includes a T-shaped transverse bar and a longitudinal bar, the bottom of the vertical bar and the rear part of the longitudinal bar are connected to the middle part of the transverse bar, and an oblique bar is connected between the vertical bar and the longitudinal bar. The structure of the base allows the user's legs to be stretched conveniently.

A second clamp that can clamp or loosen the longitudinal rod is installed on the longitudinal rod, the upper end of the oblique rod is hinged to the lower part of the vertical rod, and the lower end is detachably hinged to the second clamp;

The inner end of the longitudinal rod is slidably socketed on the transverse rod, and a guide bump is fixed on the inner end, and the surface of the transverse rod is provided with an oblique chute at a position connected with the longitudinal rod, The inclined chute runs from the front of the horizontal bar through the bottom to the side of the vertical bar, and the guide lug at the inner end of the longitudinal bar just fits into the inclined chute so that the longitudinal bar can be retracted from bottom to back. Fold to one side of the pole to further reduce the folding volume.

In order to be more convenient for users, the utility model also includes a clothes hanger fixedly installed on the top of the pole.

Compared with the prior art, the height-adjustable folding table of the utility model can quickly and conveniently adjust the height of the desktop board through the threaded adjustment handle at the inner end of the elastic cantilever, and the height adjustable range is large, allowing the user to adjust the height of the tabletop in different postures. It can be used conveniently at any time; in addition, it also has a desktop tilt adjustment device, which can adjust the tilt of the desktop according to needs; its foldable support frame adopts a clamp-type sliding or fixed structure, which is convenient to open or fold the support frame , its storage volume is small, easy to carry and easy to use; and its base is T-shaped, which is convenient for users to place their feet at will; there is also a clothes hanger on the top of the pole, showing humanized design everywhere, especially convenient at the airport Temporary use of laptops in different occasions such as , stations, docks, kitchens, bedrooms, etc.

Description of drawings

Fig. 1 is the schematic diagram when the desktop is at the lowest position of the folding table with adjustable desktop height of the utility model;

Fig. 2 is a schematic diagram of the height-adjustable folding table of the utility model when the desktop is at the highest position;

Fig. 3 is a schematic diagram of the height-adjustable folding table of the utility model when the table top is in the middle position;

Fig. 4 is a schematic diagram of the height-adjustable folding table of the utility model in a folded state;

FIG. 5 is an exploded view of the connection between the connecting block 233 and the desktop clamping block 5;

FIG. 6 is an enlarged view of the rear middle part of the transverse bar 211 .

Detailed ways

Below in conjunction with the best embodiment shown in the accompanying drawings, it will be further described in detail.

As shown in Fig. 1 , the height-adjustable folding table of the utility model is mainly composed of a desktop board 1 and a foldable support frame thereof, and the support frame includes: a base 21, a cylindrical A pole 22, and a cantilever device 23 that movably connects the desktop board 1 to the pole 22. A clothes hanger 8 is also fixed on the top of the pole 22 .

As shown in FIG. 1 , the cantilever device 23 further includes an upper cantilever 231 , a lower cantilever 232 and a coupling block 233 parallel to each other. The inner end of the upper cantilever 231 is hinged on the vertical rod 22 through the first sleeve 31 fixedly sleeved on the upper part of the vertical rod 22 , and a sleeve is installed below the first sleeve 31 and is sleeved on the vertical rod 22 . The inner end of the lower cantilever 232 is hinged on the first clamp 32 , and when the first clamp 32 is released, the first clamp 32 can slide up and down along the vertical rod 22 .

As shown in FIG. 5 , the connecting block 233 is composed of two roughly triangular vertical plates on the left and right. The upper and lower ends of the rear bottom of the coupling block 233 , the desktop board 1 is clamped at the front of the coupling block 233 . In this way, the rear bottom edge of the upright bar 22, the upper and lower cantilever arms 231 and 232, and the coupling block 233 forms a four-corner hinged parallelogram structure, and the outer end of the cantilever device 23 can be adjusted in height up and down substantially without causing damage Change the horizontal angle of table top 1. In order to fix the cantilever device 23 at the desired height, there is a vertical rod hinged end elastic device 24 arranged on it, and the vertical rod hinged end elastic device 24 is a threaded adjustment handle acting on the hinge of the upper cantilever 231 and the vertical rod 22. When the threaded adjustment handle 24 is loosened, the height of the desktop board 1 can be adjusted up and down to the lowest position (as shown in Figure 1), the highest position (as shown in Figure 2), or the middle position (as shown in Figure 3); When the handle 24 is in place, the inner end of the upper cantilever 231 is compressed on the outwardly extending tongue of the first sleeve 31, and the entire cantilever device 23 and the desktop board 1 are fixed. For firm positioning, the upper cantilever 231 The hinged part of the inner end is made into a rough non-slip surface.

As shown in Figure 5, the desktop board 1 is hinged to the front part of the connecting block 233 through a clamping block 5. The front part of the clamping block 5 has a U-shaped clamping groove 51 that can clamp the desktop board 1, and the rear part is fixed with a A vertical connecting plate 52 is hinged between the left and right vertical plates of the connecting block 233 . In order to meet the usage habits and needs of different users, a desktop inclination adjustment device is also provided on the connecting block 233, including a vertical eccentric wheel 61 and a control handle 62, and the vertical eccentric wheel 61 is hinged on the left and right sides of the connecting block 233 Between the vertical plates and against the top surface behind the hinge point of the vertical connecting plate 52 , the control handle 62 is fixedly connected to the vertical eccentric wheel 61 and protrudes outside the connecting block 233 . Turn the control handle 62, and the eccentric wheel 61 rotates synchronously, because the distance between its circumference and its axis of rotation is different, so the clamping block 5 will be within a certain angle range with the hinge point of the vertical connecting plate 52 as the lever fulcrum. Swing up and down to adjust the inclination angle of the desktop board 1 it clamps.

As shown in Figure 5, there are two through holes 53 on the left and right on the bottom plate of the U-shaped clamping groove 51 of the clamp block 5. groove, so that the part in the U-shaped through groove forms an elastic piece 11 with a certain bending ability, and the bottom of the elastic piece 11 is fixed with a bump 12 that can just extend into the through hole 53, and the two elastic pieces 11 in the horizontal and vertical directions The positions of the protrusions 12 at the bottom correspond to the positions of the two through holes 53 at the bottom of the U-shaped clamp groove 51 . The buckle between the protrusion 12 and the through hole 53 can conveniently and stably clamp the desktop board 1 in the U-shaped clamping groove 51 of the clamping block 5, and also clamp the desktop board 1 horizontally or vertically as required.

As shown in Figure 1, 2 or 3, the base 21 is composed of a bottom transverse bar 211 and a longitudinal bar 212 to form a T-shaped structure, and the bottom of the vertical bar 22 and the rear part of the longitudinal bar 212 are connected to the middle part of the transverse bar 211 , and a slanting bar 25 is connected between the upright bar 22 and the longitudinal bar 212, so that the base 21 can firmly support the weight of the upright bar 22 and the desktop board 1 during operation. The second clamp 34 that can clamp or loosen the longitudinal rod 212 is installed on the longitudinal rod 212, the upper end of the oblique rod 25 is hinged with the second sleeve 33 fixed on the lower part of the vertical rod 22, and the lower end is connected with the second sleeve 33 at the bottom of the vertical rod 22. The second clamp 34 is detachably hinged. The inner end of the longitudinal rod 212 is slidably sleeved on the transverse rod 211, and the inner end is fixed with a guide lug, as shown in Figure 6, the surface of the transverse rod 211 is connected with the longitudinal rod 212 There is an inclined chute 2111 at the position, and the inclined chute 2111 leads from the front of the transverse bar 211 through the bottom to the side of the vertical bar 22, and a stopper is provided at the end of the inclined chute 2111 Block 2112, the guide protrusion at the inner end of the longitudinal rod 212 just fits into the inclined chute so that the longitudinal rod 212 can be folded from bottom to rear to one side of the vertical rod 22 until the guide protrusion and The stop block 2112 is offset.

When folding, loosen the first clamp 32 at the inner end of the lower cantilever 232 and slide down until the elastic bump provided in the first clamp 32 is aligned with the positioning hole 221 (as shown in FIG. 2 ) provided at the bottom of the vertical rod 22. The upper and lower cantilever arms 231 and 232 can be unfolded into a straight line and folded to the vertical rod 22, and then the desktop board 1 is folded upwards close to the vertical rod 22; finally, the connection between the inclined rod 25 and the second clamp 34 At the hinge, the longitudinal bar 212 is folded back to one side of the vertical bar 22, and the whole table can be folded into a state as shown in Figure 4, and its storage volume is quite small and light, and is easy to carry. And during use, reversely open the support frame and get final product, very simple and convenient and easy to adjust, also can take overcoat on the described clothes hanger 8, make things convenient for people to use laptop computer anytime and anywhere.

Claims (10)

1. the folding table that height of table top is adjustable comprises desktop (1) and Collapsible support frame thereof, it is characterized in that:

Support frame as described above comprises: base (21), be fixed on the vertical rod (22) on the described base (21), described desktop (1) flexibly connects by cantilever arrangement (23) and described vertical rod (22);

Described cantilever arrangement (23) one ends and described vertical rod (22) are hinged, and the other end is connected with described desktop (1), and described cantilever arrangement (23) is provided with vertical rod hinged end take-up (24).

2. the adjustable folding table of height of table top according to claim 1 is characterized in that: described cantilever arrangement (23) comprises upper cantilever (231) and lower cantalever (232) and the coupling block (233) that is parallel to each other; The inner end of described upward lower cantalever (231 and 232) is hinged with described vertical rod (22) respectively one on the other, described outer end of going up lower cantalever (231 and 232) is articulated in the two ends up and down at described coupling block (233) rear portion respectively, and described desktop (1) is clamped in the front portion of described coupling block (233).

3. the adjustable folding table of height of table top according to claim 2, it is characterized in that: described vertical rod (22) is equipped with first anchor clamps (32) that are socketed in the described vertical rod (22) with upper cantilever (231) hinged end below, and the inner of described lower cantalever (232) and this first anchor clamps (32) are hinged; When unclamping described first anchor clamps (32), first anchor clamps (32) can slide up and down along vertical rod (22).

4. the adjustable folding table of height of table top according to claim 2 is characterized in that: described vertical rod hinged end take-up (24) is for acting on the threaded adjusting handle of upper cantilever (231) and vertical rod (22) hinged place.

5. according to the adjustable folding table of each described height of table top of claim 2 to 4, it is characterized in that: described coupling block (233) by about two risers form, and be connected with described desktop (1) by a fixture block (5), this fixture block (5) but the front portion has the U type clip slot (51) of clamping desktop (1), the rear portion is fixed with a vertical connecting plate (52), and this vertical connecting plate (52) is articulated between the left and right sides riser of described coupling block (233).

6. the adjustable folding table of height of table top according to claim 5, it is characterized in that: also comprise a desktop gradient adjusting device, it comprises a vertical eccentric wheel (61) and joystick (62), described vertical eccentric wheel (61) is articulated between the left and right sides riser of coupling block (233), and offset with the end face at the pin joint rear of vertical connecting plate (52), described joystick (62) is affixed and be stretched on described coupling block (233) outside with vertical eccentric wheel (61).

7. the adjustable folding table of height of table top according to claim 5, it is characterized in that: two through holes (53) about having on the base plate of the U type clip slot (51) of described fixture block (5), horizontal and vertical two shell fragments (11) that respectively are provided with in described desktop (1) upper edge, described shell fragment (11) bottom is fixed with the projection (12) that just in time can put in the described through hole (53), and the position of the projection (12) of horizontal and vertical two shell fragments (11) bottom is corresponding with the position of two through holes (53) of described U type clip slot (51) bottom.

8. according to the adjustable folding table of each described height of table top of claim 1 to 4, it is characterized in that: described base (21) comprises transverse bar (211) and the longitudinal rod (212) of forming a T shape, the rear portion of described vertical rod (22) bottom and longitudinal rod (212) is connected in transverse bar (211) middle part, and is connected with brace (25) between described vertical rod (22) and the longitudinal rod (212).

9. the adjustable folding table of height of table top according to claim 8, it is characterized in that: second anchor clamps (34) that can clamp or unclamp this longitudinal rod (212) are installed on the described longitudinal rod (212), the upper end of described brace (25) and described vertical rod (22) lower hinge, lower end and described second anchor clamps (34) self-mountable ﹠ dismountuble are hinged;

The inner slip cap of described longitudinal rod (212) is connected on the described transverse bar (211), and be installed with guiding projection on this inner end, described transverse bar (211) surface is provided with oblique chute (2111) in the position that is connected with longitudinal rod (212), this oblique chute (2111) is from the anterior side that leads directly to through the bottom to vertical rod (22) of transverse bar (211) backward, and the inner guiding projection of described longitudinal rod (212) just in time embeds and makes in this oblique chute that described longitudinal rod (212) can be from being folded to a side of described vertical rod (22) down backward.

10. according to the adjustable folding table of each described height of table top of claim 1 to 4, it is characterized in that: also comprise the clothes hanger (8) that is fixedly mounted on described vertical rod (22) top.

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