Drawing workbench

Abstract

The utility model discloses a drawing workbench, relates to the technical field of workbenches, and solves the problem that an ultra-long drawing workbench cannot pass through a narrow door frame when needing to be moved, so that the whole drawing workbench needs to be disassembled. A drawing workbench comprises a main drawing workbench. Outer stretching frames are arranged on the two sides of the main drawing workbench. An extension working surface is arranged at the upper part of the outer extension frame; the lower portion of the outer stretching frame is fixedly connected with a lower stretching connecting strip, a U-shaped buckle vertically slides in the middle of the lower stretching connecting strip, an upper supporting spring is fixed to the top of the U-shaped buckle, a middle connecting sliding groove is formed in the middle of the lower stretching connecting strip, and a rear connecting sliding column is fixed to the rear portion of the outer stretching frame. The stretching working face is stored and embedded in the lower stretching storage frame, the overall length of the workbench is shortened, and the workbench can conveniently move to penetrate through a narrow door frame to be moved and carried.

Description

Technical Field

[0001] The utility model belongs to the technical field of workbenches, and more specifically, particularly relates to a drawing workbench. Background Art

[0002] A drawing workbench is a workbench used by design drafters. When doing hand-drawing work, the drafters place the drawing paper on the drawing workbench. The currently used drawing workbench is integrally fixedly installed. In order to accommodate the laying of large-size drawing papers, the length of the drawing workbench is set very long. Increasing the length of the drawing workbench, at the same time, the ultra-long length causes the drawing workbench to be unable to pass through a narrow door frame when it needs to be moved, resulting in the need to completely disassemble the drawing workbench when moving it. Both the movement and handling are very troublesome, and the screws generated during disassembly are also prone to being lost. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a drawing workbench to solve the problem that in order to accommodate the laying of large-size drawing papers, the length of the drawing workbench is set very long, and at the same time, the ultra-long length causes the drawing workbench to be unable to pass through a narrow door frame when it needs to be moved, resulting in the need to completely disassemble the drawing workbench when moving it. Both the movement and handling are very troublesome, and the screws generated during disassembly are also prone to being lost.

[0004] The purpose and effect of a drawing workbench of the utility model are achieved by the following specific technical means:

[0005] A drawing workbench includes a main drawing workbench. Outer extension frames are provided on both sides of the main drawing workbench. An extended working surface is arranged on the upper part of the outer extension frame. A lower extension storage rack is fixedly arranged at the bottom of the main drawing workbench. Lower extension connecting bars are horizontally slidably connected to both sides of the lower extension storage rack. By pushing the outer extension frame, the extended working surface is moved to the inner side of the lower extension storage rack. A lower extension connecting bar is fixedly connected to the lower part of the outer extension frame. A U-shaped buckle vertically slides in the middle of the lower extension connecting bar. An upper support spring is fixed to the top of the U-shaped buckle. A middle connecting sliding groove is formed in the middle of the lower extension connecting bar. A rear connecting sliding column is fixed to the rear part of the outer extension frame. The top of the upper support spring is fixedly connected to the lower extension connecting bar. The rear connecting sliding column and the main drawing workbench are horizontally slidably sleeved. The rear connecting sliding column provides auxiliary support for the outer extension frame. Lower support bars are rotatably connected to both sides of the bottom of the extended working surface. The tails of the lower support bars are rotatably connected to middle connecting columns. The side surface of the extended working surface and the outer extension frame are vertically slidable. Both ends of the middle connecting column are slidably connected to the middle connecting sliding groove. The head end of the middle connecting column is slidably clamped and connected to the U-shaped buckle. Both sides of the groove in the middle of the U-shaped buckle are arranged as vertical surfaces to limit and fix the forward and backward movement of the middle connecting column, locking the position of the extended working surface. When the middle connecting column is clamped with the U-shaped buckle, the top of the extended working surface, the top of the main drawing workbench and the top of the outer extension frame are flush. The extended working surface and the main drawing workbench are connected to expand the working area for drawing, adapting to the placement of larger-sized drawings, improving the compatibility with different-sized drawings, and meeting the needs of different working areas. After the lower extension connecting bar slides to the middle of the lower extension storage rack, the extended working surface is inside the lower extension storage rack, the extended working surface is below the main drawing workbench, the outer side of the main drawing workbench is attached to the outer extension frame, the middle connecting column of the outer extension frame and the extended working surface are received and embedded inside the lower extension storage rack, and the outer extension frame is below the extended working surface.

[0006] The utility model has at least the following beneficial effects:

[0007] 1. In the utility model, by extending the outer extension frame outward, the extended working surface moves upward to be flush with the top of the main drawing workbench. The extended working surface and the main drawing workbench are connected to expand the working area for drawing, adapting to the placement of larger-sized drawings, improving the compatibility with different-sized drawings, and meeting the needs of different working areas.

[0008] 2. In the utility model, by receiving and embedding the extended working surface inside the lower extension storage rack, the overall length of the workbench is shortened, facilitating the movement and handling of the workbench through a narrow door frame. When moving and handling the workbench, it is not necessary to disassemble the whole, reducing the difficulty of movement and handling, and avoiding the situation that the connecting screws are easily lost during disassembly and installation. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of the whole utility model.

[0010] Figure 2It is a schematic structural diagram of the main drawing workbench of the present utility model.

[0011] Figure 3 It is a schematic semi-sectional structural diagram of the main drawing workbench of the present utility model.

[0012] Figure 4 It is a schematic structural diagram of the extended working surface of the present utility model.

[0013] Figure 5 It is a schematic disassembled structural diagram of the present utility model.

[0014] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0015] 1. Main drawing workbench; 101. Lower extension storage rack; 2. Outer extension rack; 201. Lower extension connecting bar; 202. U-shaped buckle; 203. Upper support spring; 204. Middle connecting chute; 205. Rear connecting slide column; 3. Extended working surface; 301. Lower support rod; 302. Middle connecting column. Specific embodiments

[0016] The following further describes the embodiments of the present utility model in detail with reference to the drawings and examples.

[0017] Example:

[0018] As shown in Figure 1 to Figure 5 shown:

[0019] The utility model provides a drawing workbench, which includes a main drawing workbench 1; a lower extension storage rack 101 is fixedly arranged at the bottom of the main drawing workbench 1, and lower extension connecting bars 201 are horizontally slidably connected to both sides of the lower extension storage rack 101. By pushing the outer extension frame 2, the extension working surface 3 is moved to the inside of the lower extension storage rack 101; outer extension frames 2 are arranged on both sides of the main drawing workbench 1, the lower part of the outer extension frame 2 is fixedly connected with the lower extension connecting bar 201, a cylindrical sliding rack arranged in the middle of the lower extension connecting bar 201 vertically slides with a U-shaped buckle 202, a upper support spring 203 is fixed at the top of the U-shaped buckle 202, a middle connecting chute 204 is opened in the middle of the lower extension connecting bar 201, a rear connecting sliding column 205 is fixed at the rear part of the outer extension frame 2, the top of the upper support spring 203 is fixedly connected with the lower extension connecting bar 201, and the rear connecting sliding column 205 is horizontally slidably sleeved with the main drawing workbench 1, and the rear connecting sliding column 205 provides auxiliary support for the outer extension frame 2; an extension working surface 3 is arranged at the upper part of the outer extension frame 2, the extension working surface 3 is of a flat plate structure, the front parts of the outer extension frame 2, the main drawing workbench 1 and the extension working surface 3 are flush, both sides of the bottom of the extension working surface 3 are rotatably connected with lower support rods 301, the tails of the lower support rods 301 are rotatably connected with middle connecting columns 302, the side surface of the extension working surface 3 vertically slides with the outer extension frame 2, both ends of the middle connecting column 302 are slidably connected with the middle connecting chute 204, the head end of the middle connecting column 302 is slidably clamped and connected with the U-shaped buckle 202, and both sides of the groove in the middle of the U-shaped buckle 202 are vertically arranged to limit and fix the forward and backward movement of the middle connecting column 302, and the position of the extension working surface 3 is locked.

[0020] Among them, when the middle connecting column 302 is clamped with the U-shaped buckle 202, the tops of the extension working surface 3, the main drawing workbench 1 and the outer extension frame 2 are flush. The extension working surface 3 and the main drawing workbench 1 are connected and extended to expand the working area for drawing, so as to adapt to the placement of larger-size drawings or the placement of more drawing tools, and improve the compatibility with different-size drawings.

[0021] Among them, after the lower extension connecting bar 201 slides to the middle of the lower extension storage rack 101, the extension working surface 3 is inside the lower extension storage rack 101, the extension working surface 3 is below the main drawing workbench 1, the outside of the main drawing workbench 1 is attached to the outer extension frame 2, the middle connecting column 302 of the outer extension frame 2 and the extension working surface 3 are received and embedded inside the lower extension storage rack 101, the outer extension frame 2 is below the extension working surface 3, and the length of the workbench as a whole is shortened after being received, which is convenient for the movement and handling of the workbench through a narrow door frame.

[0022] The specific usage method and function of this embodiment are as follows:

[0023] In the present utility model, drawing work is carried out above the main drawing workbench 1. The bottom of the lower extensible storage rack 101 can be connected to the electric lifting table legs as needed and has a lifting function. The lower extensible storage rack 101 can also be connected to the table legs by a rotating shaft, so that the lower extensible storage rack 101 and the main drawing workbench 1 have the function of adjusting the tilt angle. Different functional models such as lifting and tilting are set by selecting the table legs. When the working surface of the main drawing workbench 1 cannot meet the use requirements, the external extensible rack 2 is pulled outwards by hand. The lower extension connecting strip 201 slides outwards along the slide rail of the lower extensible storage rack 101, and the rear connecting slide column 205 slides outwards synchronously. After the external extensible rack 2 extends outwards to the maximum, the extended working surface 3 moves upwards and is flush with the top of the main drawing workbench 1. During the upward movement of the extended working surface 3, the lower support rod 301 is pulled to move synchronously. The lower support rod 301 drives the middle connecting column 302 at the end to move along the middle connecting chute 204. The middle connecting column 302 contacts the inclined surface at the front of the U-shaped buckle 202. The U-shaped buckle 202 moves upwards and compresses the upper support spring 203. The middle connecting column 302 moves along the middle connecting chute 204. The middle connecting column 302 is snapped into the middle groove of the U-shaped buckle 202. Both sides of the middle groove of the U-shaped buckle 202 are set as vertical surfaces to limit and fix the forward and backward movement of the middle connecting column 302. The position of the extended working surface 3 is locked, and the extended working surface 3 cannot move downwards. The extended working surface 3 and the main drawing workbench 1 are connected to expand the working area for drawing, adapt to the placement of larger-sized drawings or the placement of more drawing tools, improve the compatibility with different-sized drawings, and meet the needs of different working areas;

[0024] When the workbench needs to be moved to different rooms, the U-shaped buckle 202 and the middle connecting column 302 are pulled upwards to be separated. The extended working surface 3 drops vertically. The external extensible rack 2 is pushed to move the extended working surface 3 to the inside of the lower extensible storage rack 101. The middle connecting column 302 of the external extensible rack 2 and the extended working surface 3 are received and embedded inside the lower extensible storage rack 101. The external extensible rack 2 is located below the extended working surface 3. After being received, the length of the shortened workbench as a whole is reduced, which facilitates the movement and handling of the workbench through a narrow door frame, reduces the difficulty of movement and handling, enables the workbench to be moved and handled without being completely disassembled, and also eliminates the process of reinstallation after movement. It avoids the situation that the screw holes are prone to screws due to repeated disassembly and installation, and the situation that the connecting screws are easily lost during disassembly and installation.

Claims

1. A drawing workbench, characterized in that: The drawing workbench comprises a main drawing workbench (1); external extension frames (2) are provided on both sides of the main drawing workbench (1); an extension work surface (3) is provided on the upper part of the external extension frame (2); a lower extension connecting strip (201) is fixedly connected to the lower part of the external extension frame (2); a U-shaped buckle (202) is vertically slidably provided in the middle of the lower extension connecting strip (201); an upper supporting spring (203) is fixedly provided on the top of the U-shaped buckle (202); a middle connecting slide groove (204) is provided in the middle of the lower extension connecting strip (201); a rear connecting slide column (205) is fixedly provided at the rear of the external extension frame (2); a lower extension storage rack (101) is fixedly provided at the bottom of the main drawing workbench (1); and both sides of the lower extension storage rack (101) are horizontally slidably connected to the lower extension connecting strip (201).

2. A drawing workbench as claimed in claim 1, characterized in that: The top of the upper support spring (203) is fixedly connected to the lower extension connecting strip (201), and is then connected to the sliding column (205) and the main drawing workbench (1) to slide horizontally.

3. A drawing workbench as claimed in claim 1, characterized in that: Both sides of the bottom of the extension work surface (3) are rotatably connected to lower support rods (301), the tail of the lower support rod (301) is rotatably connected to the middle connecting column (302), and the side of the extension work surface (3) and the outer extension frame (2) slide vertically.

4. A drawing workbench as claimed in claim 3, characterized in that: Both ends of the middle connecting column (302) are slidably connected to the middle connecting sliding groove (204), and the head end of the middle connecting column (302) is slidably engaged with the U-shaped buckle (202).

5. A drawing workbench as claimed in claim 3, characterized in that: When the middle connecting column (302) and the U-shaped buckle (202) are engaged, the top of the extension work surface (3) is flush with the top of the main drawing workbench (1) and the top of the external extension frame (2).

6. A drawing workbench as claimed in claim 3, characterized in that: After the lower extension connection strip (201) slides to the middle of the lower extension storage rack (101), the extension work surface (3) is located inside the lower extension storage rack (101), the extension work surface (3) is located below the main drawing workbench (1), and the outer side of the main drawing workbench (1) is in contact with the outer extension rack (2).

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