CN211021415U - Support frame and desk and chair thereof - Google Patents
Support frame and desk and chair thereof Download PDFInfo
- Publication number
- CN211021415U CN211021415U CN201921142017.5U CN201921142017U CN211021415U CN 211021415 U CN211021415 U CN 211021415U CN 201921142017 U CN201921142017 U CN 201921142017U CN 211021415 U CN211021415 U CN 211021415U
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- branch
- screw rod
- synchronizing shaft
- support frame
- chair
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Abstract
The utility model relates to a support frame and desk and chair thereof, including two first branch poles that the symmetry set up, the bottom of first branch pole is provided with the sill bar, the inside cover of first branch pole is equipped with the second branch pole that can slide along its axial, the inside of first branch pole is provided with the screw rod, the inside fixed of second branch pole is provided with the guide block that cooperates with the screw rod, the inside of horizontal pole is provided with the synchronizing shaft that drives two the screw rod inside the second branch pole and rotate in step, the tip of synchronizing shaft extends to the outside of second branch pole along its axial, and is provided with the regulating part at this tip rather than concentric; the height of the supporting frame can be adjusted by rotating the adjusting part, so that the adjustment is convenient; the screw rod is matched with the guide block to drive the second supporting rod to lift, so that the adjusting precision is high; the table and the chair adopting the support frame are convenient to adjust, the adjusting precision is high, children can be helped to keep a good sitting posture through proper height, and the incidence rate of myopia is reduced.
Description
Technical Field
The utility model belongs to the technical field of lift desk chair, concretely relates to support frame and desk and chair thereof.
Background
A lifting student desk is a desk with adjustable desk height. The student desk that goes up and down at present mainly adopts the screw to go up and down, the screw goes up and down, adopt the round hole cooperation that high strength screw and lift position are different to be connected and realize going up and down, need two people to cooperate during the regulation and just can accomplish, carry out the altitude mixture control on upper portion alone, carry out the screw adjustment alone, the desk chair of also going up and down is one of the important reason of fixed desk chair in the school at present, and adjustable minimum distance is the distance between two adjacent round holes, the regulation precision is low, the travelling comfort is poor.
Disclosure of Invention
To the deficiency that exists among the prior art, the utility model provides a support frame of convenient regulation, regulation precision, and adopt desk and chair of this support frame.
The technical scheme of the utility model is that: the support frame, two first branches including the symmetry sets up, the bottom of first branch is provided with the sill bar, the inside cover of first branch is equipped with can follow its endwise slip's second branch, the inside of first branch is provided with the screw rod, the inside of second branch fixed be provided with screw rod matched with guide block, the inside of horizontal pole is provided with the drive two inside the second branch the synchronous pivoted synchronizing shaft of screw rod, the tip of synchronizing shaft extends to the outside of second branch along its axial to be provided with the regulating part rather than with one heart at this tip.
The adjusting part and the end part of the synchronizing shaft are concentrically provided with an inner hexagonal groove or a polygonal convex block.
The bottom of screw rod is provided with first conical gear, the cover is equipped with on the synchronizing shaft with the second conical gear of first conical gear engaged with.
And a shaft seat matched with the screw rod is fixedly arranged in the first supporting rod.
The sleeve of synchronizing shaft is equipped with the bearing, the bearing is fixed to be inlayed on the lateral wall of first branch.
And a graduated scale is fixedly arranged on the second supporting rod.
A table comprising a support stand as described above.
The chair comprises the support frame.
The utility model has the advantages that:
(1) the height of the supporting frame can be adjusted by rotating the adjusting part, so that the adjustment is convenient;
(2) the screw rod is matched with the guide block to drive the second supporting rod to lift, so that the adjusting precision is high;
(3) the table and the chair adopting the support frame are convenient to adjust, the adjusting precision is high, children can be helped to keep a good sitting posture through proper height, and the incidence rate of myopia is reduced.
Drawings
Fig. 1 is an external structural schematic diagram of the middle support frame of the present invention.
Fig. 2 is a schematic view of the internal structure of the middle support frame of the present invention.
Fig. 3 is a schematic structural view of the middle table of the present invention.
Fig. 4 is a schematic structural view of the chair of the present invention.
Detailed Description
The following describes the embodiments of the present invention with reference to the drawings and examples.
The support frame as shown in fig. 1 and 2 comprises two first support rods 2 which are symmetrically arranged, a bottom rod 1 is arranged at the bottom of each first support rod 2, the bottom rod 1 supports the first support rods 2, a second support rod 3 which can slide along the axial direction of each first support rod 2 is sleeved in each first support rod 2, a screw 5 is arranged in each first support rod 2, a guide block 6 which is matched with the screw 5 is fixedly arranged in each second support rod 3, the guide block 6 is in threaded connection with the screw 5, the guide block 6 can be driven by the screw 5 to rotate forward or backward to drive the second support rods 3 to move upward or downward, a synchronizing shaft 9 which drives the screw 5 in each second support rod 3 to rotate synchronously is arranged in each cross rod 4, the end part of each synchronizing shaft 9 extends to the outer side of the corresponding second support rod 3 along the axial direction of the end part, a concentric adjusting part 10 is arranged at the end part, the synchronizing shaft 9 can be rotated by the rotating adjusting part 10, the synchronizing shaft 9 drives the screw 5, the heights of the two second struts 3 are adjusted synchronously.
Further, as some embodiments of the adjusting part 10, the adjusting part 10 may be disposed at both ends or one end of the synchronizing shaft 9, the adjusting part 10 may be a hexagon socket opened at an end of the synchronizing shaft 9, and the height of the top of the second supporting rod 3 may be adjusted by rotating the synchronizing shaft 9 with a hexagon socket wrench; in addition, the adjusting portion 10 may also be a polygonal bump, a triangular bump, a quadrangular bump, a pentagonal bump, a hexagonal bump, etc. which is disposed at the end of the synchronizing shaft 10 and is integrated with the same, the height of the top of the second supporting rod 3 can be adjusted by rotating the synchronizing shaft 9 by clamping the polygonal bump with a clamp, and when the polygonal bump is a hexagonal bump, the adjusting portion can also be adjusted by rotating a wrench adapted to the polygonal bump.
As a transmission mode of the screw rod 5 and the synchronizing shaft 9, a first bevel gear 7 is arranged at the bottom end of the screw rod 5, a second bevel gear 8 meshed with the first bevel gear 7 is sleeved on the synchronizing shaft 9, a shaft seat 11 matched with the screw rod 5 is fixedly arranged inside the first supporting rod 2, and the shaft seat 11 and the inner wall of the first supporting rod 2 are welded into an integral structure.
Further, the tip of synchronizing shaft 9 is connected with the lateral wall of first branch pole 2 through bearing 12, and bearing 12 is fixed to be inlayed on the lateral wall of first branch pole 2, and bearing 12's outer lane and first branch pole 2 weld an organic whole structure.
In the above embodiment, in order to determine the height of the second support rod 3 in the adjusting process and improve the convenience of use, the metal scale 13 is fixedly embedded in the second support rod 3, the precision of the scale 13 is 1mm, the upper end of the scale 13 is an initial point, and the initial point is the total height of the support frame and the top support thereof when the upper end of the first support rod 2 is aligned with the initial point.
In order to solve the same technical problem, the present invention further provides a table, as shown in fig. 3, including the above-mentioned support frame, the table hopper 20 of the table is fixedly disposed on the top of the second support rod 3 in the above-mentioned support frame.
In addition, in order to solve the same technical problem, the present invention further provides a chair, as shown in fig. 4, including the above-mentioned support frame, a top portion of the second support rod 3 in the above-mentioned support frame is fixedly arranged on a chair plate 30 of the chair.
To sum up, the utility model relates to a support frame and desk and chair thereof, compared with the prior art, drive synchronizing shaft 9 through rotating regulating part 10 and rotate, synchronizing shaft 9 passes through two conical gear 8 and meshes two screw rods 5 of drive in step with first conical gear 7 mutually and rotates, two screw rods 5 rotate in step and can drive guide block 6 and drive second branch 3 and adjust, through just, reverse rotation regulating part 10, adjustable second branch 3 is to the top, the lower movement, realize the quick adjustment to the support frame height, promote the convenience of use, be applied to the desk with this support frame, the chair can be fast to the desk, the height of chair is adjusted.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The support frame, its characterized in that, including two first branches that the symmetry set up and set up two horizontal pole between the first branch, the bottom of first branch is provided with the sill bar, the inside cover of first branch is equipped with can follow its endwise slip's second branch, the inside of first branch is provided with the screw rod, the inside fixed be provided with of second branch with screw rod matched with guide block, the inside of horizontal pole is provided with the drive two inside the second branch the synchronous pivoted synchronizing shaft of screw rod, the tip of synchronizing shaft extends to the outside of second branch along its axial to be provided with the regulating part rather than concentric at this tip.
2. The support bracket of claim 1, wherein: the adjusting part and the end part of the synchronizing shaft are concentrically provided with an inner hexagonal groove or a polygonal convex block.
3. The support bracket of claim 1, wherein: the bottom of screw rod is provided with first conical gear, the cover is equipped with on the synchronizing shaft with the second conical gear of first conical gear engaged with.
4. The support bracket of claim 1, wherein: and a shaft seat matched with the screw rod is fixedly arranged in the first supporting rod.
5. The support bracket of claim 1, wherein: the tip of synchronizing shaft is connected with the lateral wall of first branch through the bearing, the bearing is fixed to be inlayed on the lateral wall of first branch.
6. The support frame of any one of claims 1 to 5, wherein: and a graduated scale is fixedly arranged on the second supporting rod.
7. A table comprising the support of any one of claims 1 to 6.
8. A chair comprising a support as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921142017.5U CN211021415U (en) | 2019-07-19 | 2019-07-19 | Support frame and desk and chair thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921142017.5U CN211021415U (en) | 2019-07-19 | 2019-07-19 | Support frame and desk and chair thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211021415U true CN211021415U (en) | 2020-07-17 |
Family
ID=71559753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921142017.5U Active CN211021415U (en) | 2019-07-19 | 2019-07-19 | Support frame and desk and chair thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211021415U (en) |
-
2019
- 2019-07-19 CN CN201921142017.5U patent/CN211021415U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |