Portable drawing protection box

Abstract

The utility model relates to the related technical field of automobiles, in particular to a portable drawing protection box which comprises an inner cylinder, an outer cylinder, a paper collecting assembly and a connecting assembly, the outer wall of the inner cylinder is in threaded connection with the outer cylinder, the inner diameter of one side of the outer cylinder is the same as the inner diameter of the inner cylinder, the paper collecting assembly is arranged in the inner cylinder, and the connecting assembly is connected with the paper collecting assembly. A connecting assembly is arranged on the side, with the small inner diameter, of the outer cylinder. When drawings of different sizes are placed in the protection box, a worker manually moves a sleeve base to move towards the direction adjacent to an outer cylinder, a connecting groove in the middle of the sleeve base is connected with a spline of a connecting rod, then the sleeve base rotates, a sleeve drives a plurality of sliding rods to move in the circumferential direction, and the sliding rods drive the outer cylinder to rotate; and the sleeve base can drive the connecting rod to rotate at the same time, so that the distance between the outer barrel and the sleeve and the distance between the sealing plate and the barrel cover are adjusted at the same time, and drawing paper of different sizes is stored and protected.

Description

Technical Field

[0001] This utility model relates to the field of automotive-related technology, specifically a portable drawing protection box. Background Technology

[0002] In the automotive industrial design process, drawing is the most important step. The drawings accurately represent the mechanical structure, shape, size, working principle and technical requirements. It is also necessary to ensure the accuracy of the design and verification of the drawings. In order to prevent the drawings from being affected by the external environment after they are drawn, which may cause the part dimensions or structural shape on the drawings to be contaminated and affect the designers' judgment on the accuracy of subsequent drawings, a portable drawing protection box is needed.

[0003] However, in the process of industrial design and drafting, there are many different sizes of drawings required for the design, and the existing portable drawing protection boxes have a relatively simple axial length that cannot be adjusted, making it impossible for them to store and protect drawings of different sizes. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing technologies cannot store and protect drawings of different sizes, and to propose a portable drawing protection box.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a portable drawing protection box, including an inner cylinder, an outer cylinder, a paper receiving assembly, and a connecting assembly. The outer cylinder is threaded to the outer wall of the inner cylinder, and the inner diameter of one side of the outer cylinder is the same as the inner diameter of the inner cylinder. The paper receiving assembly is disposed inside the inner cylinder, and the connecting assembly is disposed on the side of the outer cylinder with the smaller inner diameter.

[0007] Preferably, the paper receiving assembly includes a tube cover, a screw, a sleeve, a connecting rod, and a sealing plate;

[0008] The middle section of the cylinder cover is fixedly connected to the sleeve, and the axis of the sleeve is on the same axis as the cylinder cover. Screws are provided on both sides of the cylinder cover, and a connecting rod is provided on the inner wall of the sleeve. A sealing plate is rotatably provided on the side of the connecting rod away from the cylinder cover.

[0009] Preferably, the outer wall of the sealing plate is fitted to the side of the outer cylinder with the smaller inner diameter, and the inner wall of the cylinder cover is fitted to the outer side of the outer wall of the inner cylinder;

[0010] The outer wall of the connecting rod is threaded, the inner wall of the sleeve is threaded to the connecting rod, the side of the connecting rod near the sealing plate is provided with a spline, and the side of the sleeve cover near the screw is provided with a threaded connection hole, which can be threaded to the screw.

[0011] Preferably, a threaded positioning hole is provided on the side of the inner cylinder adjacent to the cylinder cover, the axis of the threaded positioning hole can be in the same straight line as the axis of the threaded connection hole, and the threaded positioning hole can be threadedly connected to the screw.

[0012] Preferably, the outer cylinder has multiple sliding cavities on the side away from the cylinder cover.

[0013] Preferably, the connecting assembly includes a sleeve, a slide bar, and a spring;

[0014] Multiple sliding rods are fixedly installed at one end of the sleeve. A spring is installed at the extended end of each sliding rod. The outer wall of the sliding rod matches the sliding cavity. The spring is installed inside the sliding cavity. The two ends of the spring are fixedly connected to the sliding rod and the outer cylinder, respectively. The inner wall of the sleeve fits against the outer cylinder. A connecting groove is provided in the middle of the sleeve. The shape and size of the connecting groove are exactly the same as the shape and size of the spline. The connecting groove can match the spline.

[0015] The portable drawing protection box proposed in this utility model has the following advantages: When placing drawings of different sizes into the protection box, the operator manually moves the sleeve towards the adjacent outer cylinder. The connecting groove in the middle of the sleeve is connected to the spline of the connecting rod. Then, by rotating the sleeve, the sleeve drives multiple sliding rods to move circumferentially. The sliding rods drive the outer cylinder to rotate. The sleeve can simultaneously drive the connecting rod to rotate, so that the distance between the outer cylinder and the sleeve and the distance between the sealing plate and the cylinder cover can be adjusted at the same time, thus realizing the storage and protection of drawings of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of A in the middle;

[0019] Figure 4 This is a schematic diagram of the connecting rod structure of this utility model.

[0020] In the diagram: 1. Inner cylinder; 101. Threaded positioning hole; 2. Outer cylinder; 201. Slide cavity; 3. Paper receiving assembly; 301. Cylinder cover; 3011. Threaded connection hole; 302. Screw; 303. Sleeve; 304. Connecting rod; 3041. Spline; 305. Sealing plate; 4. Connecting assembly; 401. Sleeve base; 4011. Connecting groove; 402. Slide rod; 403. Spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] This embodiment proposes a portable drawing protection box, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 It includes an inner cylinder 1, an outer cylinder 2, a paper receiving assembly 3, and a connecting assembly 4. The outer cylinder 2 is threadedly connected to the outer wall of the inner cylinder 1. During the rotation of the outer cylinder 2 along the inner cylinder 1, the inner diameter of the outer cylinder 2 on one side is the same as the inner diameter of the inner cylinder 1. The paper receiving assembly 3 is installed inside the inner cylinder 1, and the connecting assembly 4 is installed on the side of the outer cylinder 2 with the smaller inner diameter.

[0023] The paper receiving assembly 3 includes a tube cover 301, a screw 302, a sleeve 303, a connecting rod 304, and a sealing plate 305. The middle section of the tube cover 301 is fixedly connected to the sleeve 303, and the axis of the sleeve 303 is on the same axis. Screws 302 are respectively provided on both sides of the tube cover 301. A connecting rod 304 is provided on the inner wall of the sleeve 303. The sealing plate 305 is rotatably provided on the side of the connecting rod 304 away from the tube cover 301. The tube cover 301 can drive the sleeve 303 to rotate, and the sleeve 303 drives the connecting rod 304 to rotate along the sealing plate 305. The outer diameter of one side of the connecting rod 304 is the same as the outer diameter of the sleeve 303, which is used to fix one end of the drawing to the connecting rod 304 and the outer wall of the sleeve 303.

[0024] The outer wall of the sealing plate 305 fits against the side of the outer cylinder 2 with the smaller inner diameter. A sealing ring is provided between the sealing plate 305 and the outer cylinder 1 to ensure the sealing performance between the sealing plate 305 and the outer cylinder 2. A sealing ring is provided between the cylinder cover 301 and the inner cylinder 1 to ensure the sealing performance between the inner cylinder 1 and to prevent the external environment from affecting the inner cylinder 1. The inner wall of the cylinder cover 301 fits against the outer side of the outer wall of the inner cylinder 1. By rotating the connecting rod 304, the connecting rod 304 can move along the sleeve 303. The outer wall of the connecting rod 304 is threaded. The inner wall of 303 is threadedly connected to the connecting rod 304. The connecting rod 304 is provided with a spline 3041 on the side near the sealing plate 305. The cylinder cover 301 is provided with a threaded connection hole 3011 on the side near the screw 302. The threaded connection hole 3011 can be threadedly connected to the screw 302. The inner cylinder 1 is provided with a threaded positioning hole 101 on the side near the cylinder cover 301. The axis of the threaded positioning hole 101 can be aligned with the axis of the threaded connection hole 3011. The threaded positioning hole 101 can be threadedly connected to the screw 302.

[0025] Multiple sliding cavities 201 are provided on the side of the outer cylinder 2 away from the cylinder cover 301.

[0026] The connecting assembly 4 includes a sleeve 401, a slide rod 402, and a spring 403. The sleeve 401 moves towards the outer cylinder 1. The connecting groove 4011 in the middle of the sleeve 401 connects to the spline 3041 of the connecting rod 304. Simultaneously, the sleeve 401 drives the slide rod 402 to move along the sliding cavity 2011 and compresses the spring 403. Then, by rotating the sleeve 401, the sleeve 401 drives multiple slide rods 402 to move circumferentially. The slide rods 402 drive the outer cylinder 2 to rotate. The sleeve 401 simultaneously drives the connecting rod 304 to rotate, thus adjusting the distance between the outer cylinder 2 and the sleeve 1, and the sealing plate 305. The distance between the sleeve and the cover 301 is adjusted simultaneously. One end of the sleeve 401 is fixedly provided with multiple slide rods 402. The extended end of the slide rod 402 is provided with a spring 403. The outer wall of the slide rod 402 matches the slide cavity 201. The spring 403 is located inside the slide cavity 201. The two ends of the spring 403 are fixedly connected to the slide rod 402 and the outer cylinder 2, respectively. The inner wall of the sleeve 401 fits against the outer cylinder 2. The middle part of the sleeve 401 is provided with a connecting groove 4011. The shape and size of the connecting groove 4011 are exactly the same as the shape and size of the spline 3041. The connecting groove 4011 can match the spline 3041.

[0027] Specifically, when placing drawings of different sizes in the protective box, the operator manually moves the sleeve 401 towards the outer cylinder 1. The connecting groove 4011 in the middle of the sleeve 401 connects with the spline 3041 of the connecting rod 304. Subsequently, the sleeve 401 rotates, causing the sleeve 401 to drive multiple sliding rods 402 to move circumferentially. The sliding rods 402 drive the outer cylinder 2 to rotate. Simultaneously, the sleeve 401 can drive the connecting rod 304 to rotate, thus increasing the distance between the outer cylinder 2 and the sleeve 1. The distance between the sealing plate 305 and the cylinder cover 301 is adjusted simultaneously to a suitable length. Then, the screws 302 on both sides are rotated to separate the screws 302 from the threaded positioning hole 101. The sleeve 303 and the connecting rod 304 are pulled out to the outside of the inner cylinder 1 through the cylinder cover 301. The drawing is rolled up outside the sleeve 303 and the connecting rod 304 and inserted into the inside of the inner cylinder 1. The cylinder cover 301 is fixed to the inner cylinder 1 by the screws 302 to protect the drawing.

[0028] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A portable drawing protection box, characterized in that: It includes an inner cylinder, an outer cylinder, a paper receiving assembly, and a connecting assembly. The outer cylinder is threaded to the outer wall of the inner cylinder, and the inner diameter of one side of the outer cylinder is the same as the inner diameter of the inner cylinder. The paper receiving assembly is installed inside the inner cylinder, and the connecting assembly is installed on the side of the outer cylinder with the smaller inner diameter.

2. A portable drawing protection box according to claim 1, characterized in that: The paper receiving assembly includes a tube cover, a screw, a sleeve, a connecting rod, and a sealing plate; The middle section of the cylinder cover is fixedly connected to the sleeve, and the axis of the sleeve is on the same axis as the cylinder cover. Screws are provided on both sides of the cylinder cover, and a connecting rod is provided on the inner wall of the sleeve. A sealing plate is rotatably provided on the side of the connecting rod away from the cylinder cover.

3. A portable drawing protection box according to claim 2, characterized in that: The outer wall of the sealing plate is fitted to the side of the outer cylinder with the smaller inner diameter, and the inner wall of the cylinder cover is fitted to the outer side of the inner cylinder's outer wall; The outer wall of the connecting rod is threaded, the inner wall of the sleeve is threaded to the connecting rod, the side of the connecting rod near the sealing plate is provided with a spline, and the side of the sleeve cover near the screw is provided with a threaded connection hole, which can be threaded to the screw.

4. A portable drawing protection box according to claim 1, characterized in that: The inner cylinder is provided with a threaded positioning hole on the side adjacent to the cylinder cover. The axis of the threaded positioning hole can be aligned with the axis of the threaded connection hole, and the threaded positioning hole can be threadedly connected to the screw.

5. A portable drawing protection box according to claim 1, characterized in that: The outer cylinder has multiple sliding cavities on the side away from the cylinder cover.

6. A portable drawing protection box according to claim 1, characterized in that: The connecting assembly includes a sleeve, a slide bar, and a spring; Multiple sliding rods are fixedly installed at one end of the sleeve. A spring is installed at the extended end of each sliding rod. The outer wall of the sliding rod matches the sliding cavity. The spring is installed inside the sliding cavity. The two ends of the spring are fixedly connected to the sliding rod and the outer cylinder, respectively. The inner wall of the sleeve fits against the outer cylinder. A connecting groove is provided in the middle of the sleeve. The shape and size of the connecting groove are exactly the same as the shape and size of the spline. The connecting groove can match the spline.

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