CN211031917U - Supporting leg for square tube three-leg lifting blackboard - Google Patents
Supporting leg for square tube three-leg lifting blackboard Download PDFInfo
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- CN211031917U CN211031917U CN201922034417.0U CN201922034417U CN211031917U CN 211031917 U CN211031917 U CN 211031917U CN 201922034417 U CN201922034417 U CN 201922034417U CN 211031917 U CN211031917 U CN 211031917U
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- blackboard
- leg
- groove
- supporting leg
- base
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Abstract
The utility model discloses a three leg supporting legs for blackboard that go up and down in side pipe, including base, set screw and blackboard, the side fixedly connected with supporting leg of base, the one end fixedly connected with blotter of base is kept away from to the supporting leg, the last fixed surface of base is connected with the fixed bolster, the front of fixed bolster is equipped with spacing bolt, spacing bolt runs through the fixed bolster and extends to its back, the lift groove has been seted up to the inboard of fixed bolster, lift groove and blackboard joint. The utility model discloses in, at first, this square pipe three legs supporting leg for blackboard that goes up and down has set up set screw, lift groove, spacing bolt and has realized the lift of blackboard, secondly, has strengthened the stability of blackboard through three supporting leg, and at last, it is fixed mostly to have solved current blackboard supporting leg, unable height-adjusting, and is convenient inadequately when using, the not high problem of stability moreover.
Description
Technical Field
The utility model relates to a supporting leg field especially relates to a square pipe three legs supporting leg for lift blackboard.
Background
The blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, is hard, and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk.
The existing blackboard supporting leg is mostly fixed, cannot adjust the height, is not convenient enough when in use, and has the problem of low stability.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a supporting leg for a square tube three-leg lifting blackboard.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a three leg lift supporting legs for blackboard in side pipe, includes base, set screw and blackboard, the side fixedly connected with supporting leg of base, the one end fixedly connected with blotter of base is kept away from to the supporting leg, the last fixed surface of base is connected with the fixed bolster, the front of fixed bolster is equipped with spacing bolt, spacing bolt runs through the fixed bolster and extends to its back, the lift groove has been seted up to the inboard of fixed bolster, lift groove and blackboard joint, the spacing groove has been seted up at the both ends of blackboard.
As a further description of the above technical solution:
the number of the limiting bolts is three, and the outer surface of one end, located on the back face of the fixed support, of each limiting bolt is sleeved with a nut.
As a further description of the above technical solution:
the limiting bolt is matched with the limiting groove and penetrates through the limiting groove.
As a further description of the above technical solution:
the material of blotter is the rubber material that has certain hardness.
As a further description of the above technical solution:
the positioning screw penetrates through the fixing support and extends to the inside of the lifting groove, and a threaded hole matched with the positioning screw is formed in the outer side of the fixing support.
As a further description of the above technical solution:
a clamping groove is formed in the lifting groove, and clamping blocks matched with the clamping groove are arranged at two ends of the blackboard.
Compared with the prior art, the beneficial effects of the utility model are that: at first, this square pipe three legs supporting leg for lift blackboard has set up set screw, lift groove, spacing bolt and has realized the lift of blackboard, and secondly, has strengthened the stability of blackboard through three supporting leg, and at last, it is fixed mostly to have solved current blackboard supporting leg, unable height-adjusting, and is convenient inadequately when using, the not high problem of stability moreover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the blackboard structure of the present invention;
FIG. 3 is a schematic view of the structure of the middle fixing bracket of the present invention;
fig. 4 is the structural schematic diagram of the middle limit bolt of the present invention.
In the figure: 1. a base; 2. supporting legs; 3. a cushion pad; 4. fixing a bracket; 5. a set screw; 6. a limit bolt; 7. a lifting groove; 8. a blackboard; 9. a limiting groove; 10. and (4) a nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-4, a square pipe three-leg goes up and down supporting leg for blackboard, including base 1, set screw 5 and blackboard 8, base 1's side fixedly connected with supporting leg 2, base 1's one end fixedly connected with blotter 3 is kept away from to supporting leg 2, base 1's last fixed surface is connected with fixed bolster 4, fixed bolster 4's front is equipped with spacing bolt 6, spacing bolt 6 runs through fixed bolster 4 and extends to its back, lifting groove 7 has been seted up to fixed bolster 4's inboard, lifting groove 7 and blackboard 8 joint, spacing groove 9 has been seted up at blackboard 8's both ends.
Furthermore, the number of the limit bolts 6 is three, and the outer surface of one end of the limit bolt 6, which is positioned on the back surface of the fixed support 4, is sleeved with a nut 10.
Furthermore, the limiting bolt 6 is matched with the limiting groove 9, and the limiting bolt 6 penetrates through the limiting groove 9.
Further, the cushion pad 3 is made of rubber having a certain hardness.
Furthermore, the positioning screw 5 penetrates through the fixing support 4 and extends into the lifting groove 7, and a threaded hole matched with the positioning screw 5 is formed in the outer side of the fixing support 4.
Furthermore, a clamping groove is formed in the lifting groove 7, and clamping blocks matched with the clamping groove are arranged at two ends of the blackboard 8.
The working principle is as follows: when the blackboard eraser is used, the two supporting devices are matched to be used, the two ends of the blackboard 8 are respectively installed on the two supporting devices, the two supporting devices are firstly clamped through the lifting groove 7, then the limiting bolts 6 and the nuts 10 are matched to limit, when the blackboard eraser needs to be lifted, the limiting bolts 6 are sequentially disassembled from bottom to top, and after the blackboard 8 reaches a specified height, the positioning screws 5 are screwed down to fix the blackboard 8.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a square pipe three legs supporting leg for lift blackboard, includes base (1), set screw (5) and blackboard (8), its characterized in that, side fixedly connected with supporting leg (2) of base (1), the one end fixedly connected with blotter (3) of base (1) are kept away from in supporting leg (2), the last fixed surface of base (1) is connected with fixed bolster (4), the front of fixed bolster (4) is equipped with spacing bolt (6), spacing bolt (6) run through fixed bolster (4) and extend to its back, lift groove (7) have been seted up to the inboard of fixed bolster (4), lift groove (7) and blackboard (8) joint, spacing groove (9) have been seted up at the both ends of blackboard (8).
2. The support leg for the square tube three-leg lifting blackboard according to claim 1, wherein the number of the limit bolts (6) is three, and a nut (10) is sleeved on the outer surface of one end of the limit bolt (6) located on the back of the fixed support (4).
3. The support leg for the square tube three-leg lifting blackboard according to claim 1, wherein the limit bolt (6) is matched with the limit groove (9), and the limit bolt (6) passes through the limit groove (9).
4. The support leg for the square tube three-leg lifting blackboard according to claim 1, wherein the cushion pad (3) is made of rubber with certain hardness.
5. The support leg for the square tube three-leg lifting blackboard according to claim 1, wherein the positioning screw (5) penetrates through the fixing support (4) and extends into the lifting groove (7), and a threaded hole matched with the positioning screw (5) is formed in the outer side of the fixing support (4).
6. The supporting leg for the square tube three-leg lifting blackboard according to claim 1, wherein a clamping groove is formed in the lifting groove (7), and clamping blocks matched with the clamping groove are arranged at two ends of the blackboard (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922034417.0U CN211031917U (en) | 2019-11-20 | 2019-11-20 | Supporting leg for square tube three-leg lifting blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922034417.0U CN211031917U (en) | 2019-11-20 | 2019-11-20 | Supporting leg for square tube three-leg lifting blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211031917U true CN211031917U (en) | 2020-07-17 |
Family
ID=71559260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922034417.0U Active CN211031917U (en) | 2019-11-20 | 2019-11-20 | Supporting leg for square tube three-leg lifting blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211031917U (en) |
-
2019
- 2019-11-20 CN CN201922034417.0U patent/CN211031917U/en active Active
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