CN211641694U - But angle regulation's foldable drawing board - Google Patents

Abstract

The utility model discloses an angle-adjustable folding drawing board in the field of students, which comprises a bottom plate and a circular plate, wherein the bottom plate is hinged with a third section of supporting leg, the third section of supporting leg is connected with a second section of supporting leg, a spring is arranged in the second section of supporting leg, the spring is connected with a hemispherical block, the second section of supporting leg is connected with a second bolt, the second bolt is provided with a first section of supporting leg, the top of the bottom plate is provided with a triangular groove and a clamping device, the clamping device comprises an arc-shaped push plate, a first nut, a fixed block and a first bolt, the first bolt is connected with a first nut, the first bolt passes through the fixed block to be connected with the arc-shaped push plate, the triangular groove is internally provided with a triangular prism, the top of the triangular prism is provided with a supporting rod, the supporting rod is rotatably connected with the circular plate, the circular plate is provided with a fixed rod, the guide bar is connected with the baffle, the utility model discloses simple structure is fit for different topography, but angle regulation draws simultaneously.

Description

A foldable drawing board with an adjustable angle

technical field

The utility model relates to the field of students, in particular to a folding drawing board with an adjustable angle.

Background technique

Art is an elegant subject with a long history of development. It plays an important role in people's cultural life and the spread of social customs and customs. In the current high school and university education, there are corresponding art courses. When sketching with an artist, you will bring a lot of related items, including buckets, drawing boards, brushes, etc. As we all know, drawing boards are one of the indispensable tools for art majors.

For example, the Chinese patent application number is CN201720678178.0 A foldable portable art drawing board, including a connecting seat, a third leg is installed around the connecting seat, a drawing board is installed on the left side of the third leg, and the sleeve The top end of the pipe is installed with a pressing claw, the top end of the outer wall of the sleeve is installed with a tightening nut, the inside of the sleeve is sleeved with a push rod, and the top end of the push rod is installed with a splint. The foldable portable art drawing board, through the cooperation of the connecting seat, the pressing claw and the tightening nut, twist the handle to drive the screw into the slot, the first leg and the second leg are fixed, the second leg and the third leg are fixed. The legs are fixed, loosen the tightening nut, the top rod can slide up and down, adjust according to the size of the drawing board, tighten the tightening nut, the height of the top rod is fixed, the drawing board groove is stuck at the bottom of the drawing board, and the splint clamps the top of the drawing board. , The support legs can adjust the height, can adapt to users of different heights, can hold different sizes of drawing boards, can meet the needs of users, but can not keep the drawing boards of different terrains in a horizontal state, and can not adjust the angle, so that the drawing is not easy to draw. convenient.

Based on this, the present invention designs a foldable drawing board with an adjustable angle to solve the above problems.

Utility model content

The purpose of the present invention is to provide a folding drawing board with an adjustable angle, so as to solve the problem that although it can adapt to users of different heights and can hold drawing boards of different sizes, it can meet the needs of users. , but it cannot solve the problem that the drawing boards of different terrains reach a horizontal state, and the angle cannot be adjusted at the same time, which makes it inconvenient to draw.

In order to achieve the above purpose, the utility model provides the following technical solutions: an adjustable angle foldable drawing board, including a bottom plate and a circular plate, the bottom plate is hinged with a third leg, and the third leg is slidably connected with a The second leg, the middle and upper ends of the second leg are symmetrically provided with springs, the springs are all connected with hemispherical blocks, the second leg is fixedly connected with a second bolt, and the second bolt is threaded A first leg is connected, a triangular groove is opened on the top of the bottom plate, and a clamping device is arranged at three corners of the triangular groove, and the clamping device includes an arc-shaped push plate, a first nut, a fixing block, A first bolt, one end of the first bolt is fixedly connected with a first nut, the thread of the first bolt is rotatably connected to the arc-shaped push plate through the fixing block, a triangular prism is arranged in the triangular groove, and the top of the triangular prism is fixed A support rod is connected, the support rod is rotatably connected with the circular plate, the circular plate is slidably connected with a drawing board bracket through the chute, a fixed rod is fixedly connected to one end of the top of the circular plate, and a splint is installed at the top of the fixed rod, The bottom surface of the splint is provided with a long hole, the top end of the fixing rod penetrates the long hole, a second nut is installed on the top end of the fixing rod, the second nut is threadedly connected with the fixing rod, and the right end of the splint is installed There is a curved plate, a guide rod is installed on the right outer wall of the fixed rod, a spring is sleeved on the outer wall of the guide rod, the right end of the guide rod penetrates the curved plate, and a baffle plate is installed on the right end of the guide rod.

Preferably, the shape of the bottom plate is a triangle, and the three sides of the bottom plate are hinged with a third leg.

Preferably, a T-shaped block is fixedly connected to the bottom of the second leg, and a zigzag rubber pad is fixedly connected to the bottom of the first leg.

Preferably, the bottom plate is slidably connected to a dovetail block at the bottom of the arc-shaped push plate through a dovetail groove, the first bolt is fixedly connected to a cylinder, and the cylinder rotates in the groove of the arc-shaped push plate.

Preferably, there are two drawing board supports, one end of the drawing board support is fixedly connected with a cable, the cable is connected with a spring, and the spring connected by the cable is fixedly connected with the inner wall of the chute in the circular plate.

Preferably, a cylinder is fixedly connected to the bottom of the circular plate, and the cylinder of the circular plate rotates in the groove of the support rod.

Compared with the prior art, the beneficial effects of the present utility model are: 1. The utility model uses the spring restoring force to return the drawing board support, and pushes the splint to move downward through the rotation of the second bolt, so that the drawing board is clamped tightly.

2. The utility model uses the circular plate to rotate on the support rod, so that the angle of the drawing board can be adjusted when drawing, which is convenient for drawing. will shake.

3. The utility model uses the second bolt at the bottom of the second leg to rotate in the first leg, so that the device can be fine-tuned according to the terrain, so that the drawing board is in a horizontal state, which is convenient for drawing.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the top view of the structure of the utility model;

2 is a schematic structural diagram of the device for placing a drawing board of the present invention;

Fig. 3 is the top view of the base structure of the utility model;

FIG. 4 is a cross-sectional view of the outrigger structure of the present utility model;

Fig. 5 is the top sectional view of the push plate structure of the present invention

In the accompanying drawings, the list of components represented by each number is as follows:

1. Sawtooth rubber pad 2. First leg 3. Second leg 4. Third leg 5. Bottom plate 6. Triangular groove 7. Arc push plate 8. First nut 9. Fixing block 10 .First bolt 101. Cylinder 11. Triangular prism 12. Support rod 13. Round plate 14. Drawing board bracket 15. Cable 16. Spring 17. Fixing rod 18. Splint 19. Hemispherical block 20. Second nut 21. Long hole 22 . Bending plate 23. Second bolt 24. Baffle plate 25. Guide rod.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: a folding drawing board with adjustable angle, including a bottom plate 5 and a circular plate 13, the bottom plate 1 is hinged with a third leg 4, the third leg 4. The second leg 3 is slidably connected. The upper end of the second leg 3 is symmetrically provided with a spring 16. The springs 16 are all connected with a hemispherical block 19. The second leg 3 is fixedly connected with a second bolt 23. The two bolts 23 are threadedly connected with the first leg 2, the top of the bottom plate 5 is provided with a triangular groove 6, and three corners of the triangular groove 6 are provided with clamping devices, the clamping devices include an arc-shaped push plate 7 and a first nut 8 , a fixing block 9, a first bolt 10, one end of the first bolt 10 is fixedly connected with a first nut 8, the thread of the first bolt 10 passes through the fixing block 9 and is rotatably connected with the arc-shaped push plate 7, and a triangular prism 11 is arranged in the triangular groove 6 , the top of the triangular prism 11 is fixedly connected with a support rod 12, the support rod 12 is rotatably connected with the circular plate 13, the circular plate 13 is slidably connected with a drawing board bracket 14 through the chute, and one end of the top of the circular plate 13 is fixedly connected with a fixed rod 17, the fixed rod 17 A splint 18 is installed on the top of the splint 18, a long hole 21 is provided on the lower surface of the splint 18, the top end of the fixing rod 17 penetrates the long hole 21, and the top end of the fixing rod 17 is installed with a second nut 20, and the second nut 20 is threadedly connected with the fixing rod 17 , a curved plate 22 is installed on the right end of the splint 18, a guide rod 25 is installed on the right outer wall of the fixed rod 17, the outer wall of the guide rod 25 is sleeved with a spring 16, the right end of the guide rod 25 penetrates the curved plate 22, and the right end of the guide rod 25 A baffle 24 is installed.

Wherein, the shape of the bottom plate 5 is a triangle, the three sides of the bottom plate 5 are hinged with the third leg 4, the bottom of the second leg 3 is fixedly connected with a T-shaped block, and the bottom of the first leg 2 is fixedly connected with a zigzag The rubber pad 1, the bottom plate 5 are slidably connected with the dovetail block at the bottom of the arc-shaped push plate 7 through the dovetail groove, the first bolt 10 is fixedly connected with a cylinder 101, and the cylinder 101 rotates in the groove of the arc-shaped push plate 7, and the drawing board bracket 14 has two parts. One end of the drawing board bracket 14 is fixedly connected with a cable 15, the cable 15 is connected with a spring 16, the spring 16 connected by the cable 15 is fixedly connected with the inner wall of the chute in the circular plate 13, the bottom of the circular plate 13 is fixedly connected with a cylinder 101, and the circular plate 13 The cylinder 101 rotates in the groove of the support rod 12.

A specific application of this embodiment is: when drawing, the second leg 3 is pulled out from the third leg 4, wherein the inner spring 16 of the second leg 3 pushes out the hemispherical block 17, and the hemispherical block 17 play a limiting role. According to the actual terrain, the first leg 2 and the second bolt 23 are rotated to make the bottom plate 5 in a horizontal state, and the serrated rubber pad 1 makes the device stable. Put the triangular prism 11 into the triangular groove 6 , turn the first bolt 10 through the three first nuts 8 , and push the arc push plate 7 to clamp the support rod 12 on the triangular prism 11 . The drawing board support 14 is pulled out from the circular plate 13, and the drawing board is placed between the drawing board support 14 and the splint 18, wherein the spring 16 restores the force, so that the drawing board support 14 clamps the bottom of the drawing board. In addition, turn the second nut 23 to make The splint 18 moves downward, and through the interaction of the guide rod 25, the spring 16 and the baffle 24, the splint 18 clamps the bottom of the drawing board. The cylinder 101 at the bottom of the circular plate 13 rotates in the groove at the top of the support rod 12, so that the drawing board can be adjusted to the required angle according to the actual situation.

In the description of this specification, description with reference to the terms "one embodiment", "example", "specific example", etc. means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention. in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details, nor do they limit the invention to only the described embodiments. Obviously, many modifications and variations are possible in light of the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides an angle-adjustable's foldable drawing board, includes bottom plate and plectane, its characterized in that: the bottom plate is hinged with a third section of supporting leg, the third section of supporting leg is connected with a second section of supporting leg in a sliding manner, springs are symmetrically arranged at the middle upper end of the second section of supporting leg, the springs are all connected with a hemispherical block, the second section of supporting leg is fixedly connected with a second bolt, the second bolt is in threaded connection with a first section of supporting leg, a triangular groove is formed in the top of the bottom plate, clamping devices are arranged at three corners of the triangular groove and comprise an arc-shaped push plate, a first nut, a fixed block and a first bolt, one end of the first bolt is fixedly connected with the first nut, the first bolt penetrates through the fixed block and is rotationally connected with the arc-shaped push plate, a triangular prism is arranged in the triangular groove, a supporting rod is fixedly connected to the top of the triangular prism, the supporting rod is rotationally connected with a circular plate, the circular plate is slidably connected with, splint are installed on the top of dead lever, the lower surface of splint is equipped with the slot hole, the slot hole is run through on the top of dead lever, the second nut is installed on the top of dead lever, second nut and dead lever threaded connection, the bent plate is installed to the right-hand member of splint, the guide bar is installed to the right side outer wall of dead lever, the spring has been cup jointed to the outer wall of guide bar, the right-hand member of guide bar runs through the bent plate, the baffle is installed to the right-hand member of guide bar.

2. The foldable drawing board capable of adjusting angles of claim 1, wherein: the shape of bottom plate is triangle-shaped, the trilateral third section landing leg that all articulates of bottom plate.

3. The foldable drawing board capable of adjusting angles of claim 1, wherein: the bottom of the second section of supporting leg is fixedly connected with a T-shaped block, and the bottom of the first section of supporting leg is fixedly connected with a sawtooth-shaped rubber pad.

4. The foldable drawing board capable of adjusting angles of claim 1, wherein: the bottom plate is connected with a dovetail block at the bottom of the arc-shaped push plate through a dovetail groove in a sliding mode, the first bolt is fixedly connected with a cylinder, and the cylinder rotates in the groove of the arc-shaped push plate.

5. The foldable drawing board capable of adjusting angles of claim 1, wherein: the drawing board support has two, drawing board support one end fixedly connected with hawser, the hawser is connected with the spring, the spring that the hawser is connected is fixed connection with the spout inner wall in the plectane.

6. The foldable drawing board capable of adjusting angles of claim 1, wherein: the bottom of the circular plate is fixedly connected with a cylinder, and the cylinder of the circular plate rotates in the groove of the supporting rod.

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