Adjustable drawing positioning device

Abstract

The utility model relates to the technical field of drawing, and discloses an adjustable drawing positioning device which comprises a device body, the device body comprises a supporting frame and a workbench, a positioning assembly is arranged at the top end of the workbench, the positioning assembly comprises a cavity, the cavity is formed in the top end of the workbench, and the supporting frame is arranged on the supporting frame. A cavity is formed in the workbench, a double-end lead screw is installed on one side of the inner wall of the cavity through a bearing, the other end of the double-end lead screw movably penetrates and extends to the outside of the workbench, movable bases are installed on the outer sides of the two ends of the double-end lead screw through threads, and installation frames are fixedly installed at the top ends of the movable bases. According to the drawing positioning device, the positioning assembly is arranged, when the drawing positioning device is used, a drawing is placed on the top of the workbench, the double-end lead screw is rotated to enable the mounting frames to move close to each other or away from each other, adaptive adjustment can be conducted according to the width of the drawing, and rapid positioning of the drawing is achieved through abutting of the roller and the top of the drawing.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing drawing, and more specifically to an adjustable drawing positioning device. Background Art

[0002] When designing, it is often necessary to draw drawings by hand, place the drawings on the drawing table, and use tools such as paperweights to press the paper. For drawing drawings of large areas, multiple paper pressing tools are needed, which are not convenient to set up and use. Therefore, there is an urgent need to design an adjustable drawing positioning device. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adjustable drawing positioning device to solve the problems existing in the above-mentioned background technology.

[0004] The cam is secured to the top of the workbench with a secure connection to the workbench, and the cam is secured to the top of the workbench with a secure connection to the workbench.

[0005] Furthermore, the number of the chambers and double-ended screws is two, and chains are installed on the outer sides of the ends of the two double-ended screws through sprockets to increase the stability of the movement of the mounting frame.

[0006] Furthermore, there are two compression springs at the top of the inner surface of the mounting bracket, and the two compression springs are symmetrically installed on both sides of the top of the fixing bracket. The mounting bracket and the fixing bracket are connected by the compression springs. According to the thickness of the drawing, the fixing bracket can be allowed to move up and down inside the mounting bracket. The design of the two compression springs increases the stability of the connection of the fixing bracket.

[0007] Furthermore, a guide rod is fixedly installed on the top of the fixing frame, and the guide rod movably extends through the outside of the top of the mounting frame to provide stable guidance for the up and down movement of the fixing frame.

[0008] Furthermore, the ejection assembly includes a groove, which is opened at the top of the workbench. An ejection plate is placed inside the groove, and a connecting rod is fixedly installed at the bottom end of the ejection plate. The connecting rod movably passes through the groove and extends to the outside of the bottom of the workbench. The connecting rod is held and pulled upward, so that the ejection plate protrudes from the groove, lifting the drawing to facilitate the removal of the drawing.

[0009] Furthermore, a knob is fixedly mounted on the bottom end of the connecting rod.

[0010] The technical effects and advantages of this utility model are:

[0011] 1. The utility model is provided with a positioning component. This design brings about that when in use, the drawing is placed on the top of the workbench, and the mounting frames are moved closer or farther away from each other by rotating the double-headed screw. The adaptability can be adjusted according to the width of the drawing, and the roller and the top of the drawing are abutted to achieve rapid positioning of the drawing.

[0012] 2. The utility model is provided with an ejector assembly. With this design, after the drawing is completed, the double-headed screw is rotated to make the mounting frames move away from each other until the roller no longer abuts against the drawing. The connecting rod is held and moved upward, so that the ejector plate protrudes from the inside of the groove, and the drawing is lifted up by the ejector plate, making it easy to remove the drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic front cross-sectional view of the structure of the present invention.

[0014] Figure 2 It is a schematic top view of the structure of the present invention.

[0015] Figure 3 It is a side view schematic diagram of the movable seat structure of the present utility model.

[0016] Figure 4 For the utility model Figure 1 A magnified schematic diagram of the local structure at point A.

[0017] The accompanying drawings are marked as follows: 100, device body; 110, support frame; 111, workbench; 200, positioning assembly; 210, chamber; 211, double-headed screw; 212, movable seat; 213, mounting frame; 214, compression spring; 215, fixed frame; 216, roller; 217, guide rod; 218, chain; 300, ejection assembly; 310, groove; 311, ejection plate; 312, connecting rod. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings of the present invention.

[0019] Example 1: Reference Figure 1-4 The utility model provides an adjustable drawing positioning device, including a device body 100, the device body 100 includes a support frame 110 and a workbench 111, a positioning assembly 200 is provided on the top of the workbench 111, and the positioning assembly 200 includes a chamber 210, the chamber 210 is opened at the top of the workbench 111, a double-headed screw 211 is installed on one side of the inner wall of the chamber 210 through a bearing, the other end of the double-headed screw 211 is movable through and extends to the outside of the workbench 111, and a movable seat 212 is installed on the outer side of both ends of the double-headed screw 211 through a thread, and a mounting bracket 213 is fixedly installed on the top of the movable seat 212, and the inner surface top of the mounting bracket 213 is fixed. A compression spring 214 is fixedly installed, and a fixing frame 215 is fixedly installed at the bottom of the compression spring 214. A roller 216 is rotatably installed at the bottom of the fixing frame 215. An ejection assembly 300 is provided at the top of the workbench 111. There are two chambers 210 and two double-headed screws 211. A chain 218 is installed on the outer side of the end of the two double-headed screws 211 through a sprocket. There are two compression springs 214 at the top of the inner surface of the mounting frame 213. The two compression springs 214 are symmetrically installed on both sides of the top of the fixing frame 215. A guide rod 217 is fixedly installed on the top of the fixing frame 215, and the guide rod 217 movably extends through and extends to the outer side of the top of the mounting frame 213.

[0020] The working principle of the first embodiment of the present invention is as follows: when in use, the drawing is placed on the top of the workbench 111, and the end of the double-headed screw 211 is held and rotated. Due to the engagement of the chain 218, the double-headed screw 211 rotates synchronously, and then the two movable seats 212 on both sides move closer to or away from each other. During the movement of the mounting frame 213, the roller 216 and the top of the workbench 111 roll and fit together until the roller 216 and the top of the drawing are pressed and positioned, and then drawing can be carried out.

[0021] Example 2:

[0022] The difference between Example 2 and Example 1 is that the ejection assembly 300 includes a groove 310, which is opened at the top of the workbench 111, and an ejection plate 311 is placed inside the groove 310. A connecting rod 312 is fixedly installed at the bottom end of the ejection plate 311. The connecting rod 312 movably passes through the groove 310 and extends to the outside of the bottom of the workbench 111. A knob is fixedly installed at the bottom end of the connecting rod 312. After drawing is completed, the double-headed screw 211 is rotated to make the mounting frame 213 move away from each other until the roller 216 no longer abuts against the drawing. The connecting rod 312 is held and moved upward, so that the ejection plate 311 protrudes from the inside of the groove 310, and the drawing is lifted up by the ejection plate 311 to facilitate the removal of the drawing.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable drawing positioning device, comprising a device body (100), wherein the device body (100) comprises a support frame (110) and a workbench (111), characterized in that: The top of the workbench (111) is provided with a positioning assembly (200), and the positioning assembly (200) includes a chamber (210), and the chamber (210) is opened at the top of the workbench (111), and a double-headed screw (211) is installed on one side of the inner wall of the chamber (210) through a bearing, and the other end of the double-headed screw (211) is movably extended to the outside of the workbench (111), and the outer sides of both ends of the double-headed screw (211) are both installed with a movable seat (212) through a thread, and the top of the movable seat (212) is fixedly installed with a mounting frame (213), and the top of the inner surface of the mounting frame (213) is fixedly installed with a compression spring (214), and the bottom of the compression spring (214) is fixedly installed with a fixing frame (215), and the bottom of the fixing frame (215) is rotatably installed with a roller (216), and the top of the workbench (111) is provided with an ejection assembly (300).

2. The adjustable drawing positioning device according to claim 1, characterized in that: The number of the chambers (210) and the double-ended screws (211) is two, and chains (218) are installed on the outer sides of the ends of the two double-ended screws (211) via sprockets.

3. The adjustable drawing positioning device according to claim 1, characterized in that: There are two compression springs (214) on the top of the inner surface of the mounting frame (213), and the two compression springs (214) are symmetrically mounted on both sides of the top of the fixing frame (215).

4. The adjustable drawing positioning device according to claim 1, characterized in that: A guide rod (217) is fixedly mounted on the top of the fixing frame (215), and the guide rod (217) is movably extended through the top of the mounting frame (213).

5. The adjustable drawing positioning device according to claim 1, characterized in that: The ejection assembly (300) includes a groove (310), the groove (310) is opened at the top of the workbench (111), an ejection plate (311) is placed inside the groove (310), and a connecting rod (312) is fixedly installed at the bottom end of the ejection plate (311), and the connecting rod (312) movably passes through the groove (310) and extends to the outside of the bottom of the workbench (111).

6. The adjustable drawing positioning device according to claim 5, characterized in that: A knob is fixedly mounted on the bottom end of the connecting rod (312).

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