Portable rubber and plastic plate cutting auxiliary device

Abstract

The utility model provides a portable rubber and plastic plate cutting auxiliary device which comprises at least two base plates, hinges are arranged among the base plates in a hinged mode, linear scales are arranged on the base plates, scribing grooves are formed in the base plates, a cutter can be embedded into the scribing grooves in a sliding mode, the scribing grooves comprise linear grooves and curved grooves, the linear grooves are perpendicular to the linear scales, and the curved grooves are perpendicular to the curved scales. The curve groove is communicated with one end, far away from the linear ruler, of the linear groove, and the shape of the curve groove is a curve of a single-section mitre elbow expansion graph; a protruding plate is perpendicularly arranged on one side edge of the base plate, an angle scale is slidably connected to the protruding plate, and the length direction of the angle scale is perpendicular to the length direction of the protruding plate.

Description

Technical Field

[0001] This utility model relates to cutting auxiliary tools, specifically a portable rubber and plastic sheet cutting auxiliary device. Background Technology

[0002] For pipes with a diameter of DN150 or larger, rubber and plastic sheets are often used to wrap the pipes. Due to the wide construction area of ​​the pipes, the rubber and plastic sheets are cut on-site and laid out for insulation while the pipes are being insulated. When rubber and plastic sheets are used to insulate pipe bends, a 4-5 section "shrimp bend" is used for insulation. The development diagram of a single section "shrimp bend" needs to be drawn and laid out.

[0003] Regarding the aforementioned technologies, the processing site for rubber and plastic sheets is not fixed. The rubber sheets need to be moved frequently on the construction site as the pipeline extends. The insulation material for the pipe bends needs to be specially marked and processed each time. Since the ground on the construction site is often uneven and the processing conditions are poor, it is easy to cause non-standard marking, layout and cutting, resulting in poor quality of rubber and plastic sheet cutting and processing. Utility Model Content

[0004] The purpose of this invention is to provide a portable rubber and plastic sheet cutting auxiliary device to solve the problem of poor cutting quality of rubber and plastic sheets.

[0005] To achieve the above objectives, this utility model provides a portable rubber and plastic sheet cutting auxiliary device, which adopts the following technical solution:

[0006] A portable rubber and plastic sheet cutting aid includes at least two pads, with hinges connecting the pads. Each pad has a straight ruler and a marking groove for a cutting blade to slide into. The marking groove includes a straight groove and a curved groove. The straight groove is perpendicular to the straight ruler, and the curved groove connects to the end of the straight groove furthest from the straight ruler. The curved groove is shaped like a curve in the unfolded diagram of a single-section curved tube. A protruding plate is perpendicularly arranged on one side of each pad, and an angle ruler is slidably connected to the protruding plate. The length direction of the angle ruler is perpendicular to the length direction of the protruding plate.

[0007] As an optimization of a portable rubber and plastic sheet cutting auxiliary device, the cross section of the angle scale is an isosceles trapezoid, and the vertex angle of the isosceles trapezoid is 135°.

[0008] As an optimization of a portable rubber and plastic sheet cutting auxiliary device, one end of the angle scale is provided with a groove, the extension direction of the groove is perpendicular to the length direction of the angle scale, and the protruding plate is slidably connected to the inner wall of the groove.

[0009] As an optimization of a portable rubber and plastic sheet cutting auxiliary device, the length of the curved groove is one-quarter of the complete curve of a single-section shrimp bend unfolded diagram.

[0010] As an optimization of a portable rubber and plastic sheet cutting auxiliary device, the shape of the curved groove includes at least one of the following: the unfolded curve of a single-section shrimp-shaped bend tube, which is DN200, DN250, DN300 and DN350.

[0011] As an optimization of a portable rubber and plastic sheet cutting aid, the pad uses a rigid plastic sheet.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This device has a scribing groove to guide the cutting of rubber and plastic sheets, which reduces the difficulty of drawing curves, makes it easy for operators to get started, makes the drawing and layout more accurate, and improves the processing quality of rubber and plastic sheet cutting. At the same time, this device can be folded or unfolded, and the size of each pad is only one-quarter of that of the prior art, which reduces the footprint, improves flexibility and convenience, and makes it easy to carry and store. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the cutting aid device according to an embodiment of this application;

[0015] Figure 2 This is a planar unfolded schematic diagram of the cutting auxiliary device according to an embodiment of this application.

[0016] In the diagram: 1. Pad; 2. Hinge; 3. Straight ruler; 4. Marking groove; 41. Straight groove; 42. Curved groove; 5. Protruding plate; 6. Angle ruler; 61. Groove. Detailed Implementation

[0017] To make the technical solution and advantages of this utility model clearer, the present utility model and its beneficial effects will be described in further detail below with reference to specific embodiments and accompanying drawings. However, the embodiments of this utility model are not limited thereto.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0020] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail below.

[0021] This application provides a portable rubber and plastic sheet cutting auxiliary device, which adopts the following technical solution:

[0022] Reference Figure 1 and Figure 2 The portable rubber and plastic sheet cutting auxiliary device includes at least two pads 1. In this embodiment, three pads 1 are used as an example for illustration. The pads 1 are made of rigid materials, preferably rigid plastic. Laying the rubber and plastic pads 1 on the pads 1 for cutting can reduce the interference of uneven ground on the cutting of rubber and plastic sheets and help improve the processing quality.

[0023] Reference Figure 1 and Figure 2 Multiple pads 1 are hinged together by hinges 2. The multiple pads 1 can be folded to the size of a single pad 1 for transport, or fully unfolded for marking and laying out rubber and plastic sheets of different sizes. Each pad 1 is marked with a straight ruler 3, which extends along the length of the pad 1 and has markings indicating the cutting length of the rubber and plastic sheet. Each pad 1 also has one or more scribing grooves 4 for inserting a cutting blade. By driving the cutting blade to slide along the scribing groove 4, the rubber and plastic sheet can be cut quickly and accurately. The scribing groove 4 includes a straight groove 41 and a curved groove 42. The straight groove 41 is located at one end of the straight ruler 3 and extends in a direction perpendicular to the straight ruler 3. The curved groove 42 connects to the end of the straight groove 41 away from the straight ruler 3, and the shape of the curved groove 42 is a curve resembling the unfolded shape of a single-section shrimp-shaped bend.

[0024] Reference Figure 1 and Figure 2 A protruding plate 5 is integrally formed vertically on one side of the pad 1. The protruding plate 5 serves as abutment for the side of the rubber and plastic sheet, ensuring the sheet is placed correctly on the pad 1 for cutting, thus improving the cutting quality. An angle scale 6 is slidably connected to the protruding plate 5, extending along one end perpendicular to the length of the protruding plate 5. Specifically, a groove 61 is formed at one end of the angle scale 6, extending along the length of the angle scale 6. The protruding plate 5 is slidably connected to the inner wall of the groove 61, allowing the angle scale 6 to slide along the protruding plate 5, facilitating its movement to any position to assist the cutting blade in alignment.

[0025] When it is necessary to cut a straight line on the rubber and plastic sheet, slide the angle ruler 6 along the protruding plate 5 to align with the straight groove 41, and drive the cutter to slide along the straight groove 41 to cut the side of the rubber and plastic sheet, so that the rubber and plastic sheet has a straight side with an angle in the cross section; when it is necessary to cut a curve on the rubber and plastic sheet, drive the cutter to slide along the curve groove 42, and cut out the shape of a single section of shrimp bend pipe on the rubber and plastic sheet. Join and glue the cut-out side of the rubber and plastic sheet to form the shape of a single section of shrimp bend pipe, thereby achieving the wrapping and insulation of the pipe.

[0026] In a preferred embodiment of this application, the cross-section of the angle ruler 6 is an isosceles trapezoid, and the vertex angle of the isosceles trapezoid is 135°. Therefore, the supplementary angle on the outer side of the angle ruler 6 is 45°. The cutter is placed against the side of the angle ruler 6, and the cutter cuts the side of the rubber and plastic sheet at 45° along the angle of the angle ruler 6. Then, the other side of the rubber and plastic sheet is also cut at 45° in the same way. The two side angles of the rubber and plastic sheet are complementary, so that when the rubber and plastic sheet is rolled up to wrap the water pipe, the joint is more tightly connected.

[0027] In a preferred embodiment of this application, the length of the curved groove 42 is one-quarter of the complete curve of the single-section shrimp-bend unfolded diagram. By sliding the cutter once within the groove 4, one-quarter of the curve can be cut on the rubber and plastic sheet. By rotating the rubber and plastic sheet and repeating the cutting step three times, a complete single-section shrimp-bend unfolded diagram curve can be cut. By reducing the cutting length of the curve, the size of the pad 1 is reduced, which not only reduces costs but also improves the portability of the device.

[0028] Furthermore, referring to Figure 2 The shape and specifications of the curved groove 42 include at least one of the specifications of a single section of shrimp bend pipe, namely DN200, DN250, DN300 and DN350. Different pads 1 correspond to different specifications of single section shrimp bend pipe. At the same time, the same pad 1 can also include, thus integrating multiple specifications of marking and layout specifications on a set of devices to meet different usage needs on the construction site and improve processing efficiency.

[0029] The experimental principle of this embodiment is as follows: When it is necessary to cut rubber and plastic sheets at the construction site, multiple pads 1 are unfolded, and the rubber and plastic sheets are aligned with the protruding plate 5 and placed on the pads 1. The length of the rubber and plastic sheet to be cut is determined by the straight ruler 3. Then, the cutter is embedded in the scribing groove 4. First, the cutter is driven to slide against the angle ruler 6 in the straight groove 41 to cut out the angled side of the rubber and plastic sheet. Then, the cutter is driven to slide in the curved groove 42 to cut out one-quarter of the unfolded curve of the single-section shrimp bend. The rubber and plastic sheet is rotated, and the above cutting steps are repeated three times to obtain a rubber and plastic sheet with a complete curve. The two sides of the rubber and plastic sheet are spliced ​​together to form a tight seam, so that the rubber and plastic sheet wraps around the single-section shrimp bend to form an insulation layer. The space required for cutting rubber and plastic sheets is one-quarter of that of the prior art, which is convenient for folding and carrying, improving the convenience and practicality of the tool. Moreover, the scribing operation of this device is simple and accurate, which helps to improve the cutting and processing quality of rubber and plastic sheets.

[0030] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A portable rubber and plastic sheet cutting auxiliary device, characterized in that, The device includes at least two pads (1), with hinges (2) connecting the multiple pads (1). A straight ruler (3) is provided on each pad (1), and a scribing groove (4) is provided on each pad (1). The scribing groove (4) is for a cutting knife to slide into. The scribing groove (4) includes a straight groove (41) and a curved groove (42). The straight groove (41) is perpendicular to the straight ruler (3), and the curved groove (42) is connected to the end of the straight groove (41) away from the straight ruler (3). The shape of the curved groove (42) is a curve of the unfolded diagram of a single-section shrimp-shaped tube. A protruding plate (5) is vertically provided on one side of the pad (1), and an angle ruler (6) is slidably connected on the protruding plate (5). The length direction of the angle ruler (6) is perpendicular to the length direction of the protruding plate (5).

2. The portable rubber and plastic sheet cutting auxiliary device according to claim 1, characterized in that, The cross section of the angle scale (6) is an isosceles trapezoid, and the vertex angle of the isosceles trapezoid is 135°.

3. The portable rubber and plastic sheet cutting auxiliary device according to claim 1, characterized in that, One end of the angle scale (6) is provided with a groove (61), the extension direction of the groove (61) is perpendicular to the length direction of the angle scale (6), and the protruding plate (5) is slidably connected to the inner wall of the groove (61).

4. The portable rubber and plastic sheet cutting auxiliary device according to claim 1, characterized in that, The length of the curved groove (42) is one-quarter of the complete curve of the single-section shrimp bend unfolded diagram.

5. The portable rubber and plastic sheet cutting auxiliary device according to claim 4, characterized in that, The shape of the curved groove (42) includes at least one of the following: the unfolded curve of a single-section shrimp bend pipe of DN200, DN250, DN300 and DN350.

6. The portable rubber and plastic sheet cutting auxiliary device according to claim 1, characterized in that, The pad (1) is made of rigid plastic sheet.

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