Antiskid plastic ruler

Abstract

The utility model discloses an anti-skidding plastic ruler which comprises a ruler body and an anti-skidding device, the ruler body is made of hard plastic, and the anti-skidding device is made of soft plastic. The anti-skid device is fused with the external area of the corner of the ruler body, the anti-skid device is distributed along the edge of the ruler body, the anti-skid device can bend and deform, the bending angle is adjustable, and a user can adjust the bending degree of the anti-skid device according to needs so as to adapt to different use scenes and operation requirements; the antiskid device made of soft materials and the rigid plastic ruler body are integrally designed, and through distribution and function optimization of the antiskid device and the rigid plastic ruler body, the antiskid performance of the ruler is improved, the operation convenience is enhanced, and the durability is improved; in addition, the deformable taking area is designed at the corner of the ruler body, so that the problem that a traditional ruler is prone to sliding is solved, and the experience of a user in the taking, placing and using processes is optimized.

Description

Technical Field

[0001] This utility model relates to a plastic ruler, and more particularly to an anti-slip plastic ruler, which adds an anti-slip function to the plastic ruler to eliminate its self-slip properties. Background Technology

[0002] Plastic rulers are widely used in drafting and measuring tools due to their lightweight, transparency, and ease of manufacture. However, traditional plastic rulers suffer from a common problem in practical use: the self-lubricating nature of plastic makes them prone to slipping, leading to inaccurate drafting or measurement. To address this issue, many improved designs have been proposed, primarily focusing on enhancing anti-slip functionality. Below are two typical anti-slip plastic ruler designs and their associated problems.

[0003] Prior art document 1 (CN 86 2 07050 U) proposes a design to enhance anti-slip performance by molding or attaching anti-slip devices to the back of a plastic ruler. This design, by adding strip-shaped, block-shaped, or circular anti-slip devices to the back of the ruler, makes the ruler more stable during use and reduces slippage. Furthermore, the thickness of the anti-slip devices creates a gap between the bottom of the ruler and the paper, preventing ink from seeping under the ruler during tracing and thus keeping the drawing clean.

[0004] However, this design has two main problems: inaccurate line drawing: because the anti-slip device is glued to the back of the ruler, a certain gap will be created between the ruler and the paper. This gap will cause the pen tip to not make a tight contact with the paper when drawing lines, thus affecting the accuracy of the lines. Anti-slip device is easy to fall off: the glued anti-slip device may fall off during use due to frequent friction or external force, affecting the anti-slip effect and lifespan of the ruler.

[0005] Prior art document 2 (CN 202557080 U) proposes a design for an anti-slip corner ruler. This design enhances anti-slip performance by machining evenly distributed adhesive holes on the four sides of the short ruler and inserting adhesive granules into these holes. This design allows the corner ruler to have better adhesion when in contact with smooth surfaces, effectively preventing slippage.

[0006] However, the main problem with this design is that the anti-slip function is limited to the base: the anti-slip device is only located on the four sides of the short ruler, not the entire ruler itself. This means that the long ruler section is still prone to slipping, especially in situations requiring precise measurement or marking. Limited applicability: This design is mainly suitable for corner rulers and is not applicable to other types of rulers such as straight rulers and set squares, thus limiting its versatility. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a non-slip plastic ruler that can prevent slippage and ensure accurate marking.

[0008] The core technical concept of this utility model lies in integrating a soft anti-slip device with a rigid plastic ruler body into a single design. Through optimized distribution and function, the ruler's anti-slip performance, ease of operation, and durability are improved. Furthermore, by designing deformable gripping areas at the corners of the ruler body, not only is the problem of traditional rulers easily slipping solved, but the user experience during handling and use is also optimized.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a non-slip plastic ruler, including a ruler body and at least one non-slip corner, wherein the ruler body is made of rigid plastic and the non-slip corner is made of soft plastic;

[0010] The anti-slip angle is located at the corner of the ruler body, and the anti-slip angle is integrally formed with the ruler body at the corner of the ruler body through injection molding process;

[0011] The thickness of the anti-slip angle is consistent with the thickness of the ruler body, so that the bonding surface on the back of the anti-slip plastic ruler can be stably bonded to the working plane;

[0012] The anti-slip angle is the picking area, and the picking area can be deformed;

[0013] In the first state, the back of the picking area is attached to the working plane of the anti-slip plastic ruler; in the second state, the picking area is deformed relative to the working plane to allow the user to hold and operate it.

[0014] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: the soft plastic is distributed along the edge of the back of the ruler, or the back of the ruler is covered with soft plastic.

[0015] Furthermore, the outer edge of the soft plastic does not extend beyond the outer edge of the ruler body.

[0016] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: at least a portion of the soft plastic at the corner of the ruler body and the soft plastic covering the back of the ruler body are continuously transitioned.

[0017] The soft plastic material includes one or both of silicone and TPU.

[0018] The ruler body includes at least one of a ruler, a protractor, a right-angled triangle ruler, and an isosceles triangle ruler;

[0019] The ruler is made of transparent plastic and has scale lines on it;

[0020] The soft plastic at the corner of the ruler forms the anti-slip corner.

[0021] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: When the anti-slip plastic ruler is used to adhere to the working surface, the bonding surface covered with soft plastic on the back of the ruler body and the bonding surface not covered with soft plastic are smoothly transitioned to ensure that the bonding surface on the back of the anti-slip plastic ruler can be stably attached to the working surface.

[0022] Another technical solution adopted by this utility model to solve the above-mentioned technical problems is: a non-slip plastic ruler, including a ruler body and a non-slip device, wherein the ruler body is made of hard plastic and the non-slip device is made of soft plastic;

[0023] The anti-slip device is integrated with the outer area of ​​at least one corner of the ruler body, the anti-slip device is distributed along the edge of the ruler body, and the anti-slip device is capable of bending deformation and the bending angle is adjustable.

[0024] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: the anti-slip device and the ruler body are integrally formed by injection molding process to ensure a firm connection between the anti-slip device and the ruler body;

[0025] The surface of the anti-slip device is textured to enhance the anti-slip effect;

[0026] The ruler is made of transparent plastic and has scale lines on it. The scale lines and the anti-slip device have a clear color contrast, making it easy to read.

[0027] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is that the thickness of the anti-slip device is 0.5mm to 2mm, so as to ensure that the gap between the ruler and the paper is appropriate and to avoid ink penetration when marking lines.

[0028] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: the anti-slip device is distributed along the edge of the back of the ruler body, or the back of the ruler body is covered with the anti-slip device.

[0029] The outer edge of the anti-slip device does not extend beyond the outer edge of the ruler.

[0030] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: the ruler body includes at least one of a ruler, a protractor, a right-angled triangle ruler and an isosceles triangle ruler, and the anti-slip device of each ruler body is customized according to its shape;

[0031] The anti-slip device is made of silicone or TPU and has wear-resistant and aging-resistant properties, ensuring stability for long-term use.

[0032] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: the corner of the ruler body incorporating the anti-slip device forms a picking area, and the picking area can be deformed;

[0033] In the first state, the back of the picking area is attached to the working plane of the ruler body; in the second state, the picking area is deformed relative to the working plane to allow the user to hold and operate it.

[0034] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: When the anti-slip plastic ruler is used to adhere to the working surface, the contact surface of the ruler body corner covered with the anti-slip device on the back area of ​​the anti-slip plastic ruler transitions smoothly with the contact surface of the ruler body without the anti-slip device, so as to ensure that the contact surface of the entire back of the anti-slip plastic ruler can be stably attached to the working surface.

[0035] Another technical solution adopted by this utility model to solve the above-mentioned technical problems is: a non-slip plastic ruler, including a ruler body and at least one non-slip corner, wherein the ruler body is made of rigid plastic and the non-slip corner is made of soft plastic;

[0036] The anti-slip angle is located at the corner of the ruler body, and the anti-slip angle is integrally formed with the ruler body at the corner of the ruler body through injection molding process;

[0037] The soft plastic is distributed along the edge of the back of the ruler, or the back of the ruler is covered with soft plastic.

[0038] Furthermore, at least a portion of the soft plastic at the corner of the ruler body is continuously connected to the soft plastic covering the back of the ruler body.

[0039] The anti-slip angle is the picking area, and the picking area can be deformed.

[0040] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problem is that the outer edge of the soft plastic covering the back of the ruler does not extend beyond the outer edge of the ruler.

[0041] The soft plastic material includes one or both of silicone and TPU.

[0042] The ruler body includes at least one of a ruler, a protractor, a right-angled triangle ruler, and an isosceles triangle ruler;

[0043] The ruler is made of transparent plastic and has scale lines on it;

[0044] In the first state, the back of the picking area is attached to the working plane of the anti-slip plastic ruler; in the second state, the picking area is deformed relative to the working plane to allow the user to hold and operate it.

[0045] Another technical solution adopted by this utility model to solve the above-mentioned technical problems is: a non-slip plastic ruler, including a ruler body and at least one non-slip corner, wherein the ruler body is made of rigid plastic and the non-slip corner is made of soft plastic;

[0046] The anti-slip angle is located at the corner of the ruler body, and the anti-slip angle is integrally formed with the ruler body at the corner of the ruler body through injection molding process;

[0047] The soft plastic is distributed along the edge of the back of the ruler;

[0048] Furthermore, at least a portion of the soft plastic at the corner of the ruler body is continuously connected to the soft plastic covering the back of the ruler body.

[0049] The anti-slip angle is the picking area, and the picking area can be deformed;

[0050] When using the anti-slip plastic ruler against the work surface, the back of the ruler with the soft plastic covering and the uncovered soft plastic covering should have a smooth transition to ensure that the back of the anti-slip plastic ruler can stably adhere to the work surface.

[0051] Another preferred technical solution adopted by this utility model to solve the above-mentioned technical problem is:

[0052] The outer edge of the soft plastic covering the back of the ruler does not extend beyond the outer edge of the ruler itself.

[0053] In the first state, the back of the picking area is attached to the working plane of the anti-slip plastic ruler; in the second state, the picking area is deformed relative to the working plane to allow the user to hold and operate it.

[0054] Compared with existing technologies, the advantages of this invention are: by integrating the anti-slip device with the ruler body, this invention cleverly solves the core problems of traditional anti-slip devices being prone to detachment and inaccurate marking. This technical solution not only enhances the stability of the ruler during use, but also ensures a tight fit between the ruler and the working surface through optimized thickness of the anti-slip device and a smooth transition of the contact surface, thereby significantly improving the accuracy of measurement and drawing.

[0055] In addition, the choice of materials for the anti-slip device (such as silicone or TPU) further enhances its wear resistance and aging resistance, allowing the ruler to maintain stable performance during long-term use.

[0056] From a user experience perspective, the adjustable bending mechanism of the anti-slip device is a key innovation of this technical solution. By allowing the anti-slip device to deform and adjust according to the usage scenario, the ruler can better adapt to different users' grip habits and operational needs. This not only reduces fatigue caused by frequent ruler handling but also avoids damage or measurement errors due to slipping, significantly improving the tool's usability and comfort. Furthermore, this is further demonstrated by the optimized handling area, which enhances the user's operating experience and ensures excellent adaptability in various usage scenarios.

[0057] Furthermore, this technical solution utilizes environmentally friendly silicone or TPU materials. These materials not only conform to modern environmental protection concepts but also possess excellent wear resistance and aging resistance. This material selection not only extends the ruler's lifespan but also enhances its stability in complex environments, further strengthening the product's market competitiveness. Through this user-centric design approach, this utility model not only meets the needs of professionals in high-precision drafting and measurement but is also suitable for ordinary users in their daily learning and work scenarios, truly achieving universality and efficiency in tool design.

[0058] In summary, this utility model's anti-slip plastic ruler achieves dual optimization of function and user experience through innovative structural design and material selection. Its technical effectiveness not only solves traditional problems (such as anti-slip device detachment and inaccurate marking), but also further enhances the product's durability and market competitiveness through its adjustable bending design and the use of environmentally friendly materials. This holistic design approach not only meets users' needs in different scenarios but also provides new ideas and directions for modern tool design. Attached Figure Description

[0059] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0060] Figure 1 Schematic diagram of the overall structure of the plastic anti-slip ruler Figure 1 ;

[0061] Figure 2 Schematic diagram of the overall structure of the plastic anti-slip ruler Figure 2 ;

[0062] Figure 3 A diagram illustrating the separation of the anti-slip device from the ruler body. Figure 1 ;

[0063] Figure 4 A diagram illustrating the separation of the anti-slip device from the ruler body. Figure 2 ;

[0064] Figure 5 A schematic diagram showing the distribution of soft plastic along the edge of the back of the ruler. Figure 1 ;

[0065] Figure 6 A schematic diagram showing the distribution of soft plastic along the edge of the back of the ruler. Figure 2 ;

[0066] Figure 7 Front view of the ruler with flexible plastic body distributed on the back. Figure 1 ;

[0067] Figure 8 Front view of the ruler with flexible plastic body distributed on the back. Figure 2 ;

[0068] Figure 9 Enlarged view of the layout of the area for retrieving the anti-slip plastic ruler;

[0069] Figure 10 A schematic diagram showing the anti-slip angle formed between the soft plastic and the ruler body;

[0070] Figure 11 This is a magnified view of the back of the soft plastic body that is fitted with the ruler. Detailed Implementation

[0071] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0072] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0073] like Figures 1 to 4 As shown, a non-slip plastic ruler 100 includes a ruler body 10 and a non-slip device 20. The ruler body 10 is made of rigid plastic, and the non-slip device 20 is made of soft plastic. The non-slip device 20 is integrated with the outer area of ​​at least one corner of the ruler body. The ruler body 10 is made of rigid plastic to ensure that the ruler maintains sufficient rigidity and accuracy during operations such as drawing and measuring. The non-slip device 20 is made of soft plastic and is cleverly integrated with the outer area of ​​at least one corner of the ruler body 10 and distributed along the edge of the ruler body 10.

[0074] This unique technical approach not only effectively solves the slippage problem caused by the material properties of traditional plastic rulers, but also, through the bendable deformation and adjustable bending angle of the anti-slip device 20, gives the ruler greater adaptability and operational flexibility. Users can freely adjust the bending degree of the anti-slip device 20 according to different usage scenarios and specific operational needs, making it easier to pick up and put down the plastic ruler. This reduces user fatigue from frequent ruler handling and avoids damage or measurement errors caused by the ruler slipping, thus significantly improving the tool's usability and user experience. Details will be elaborated below.

[0075] Preferably, the anti-slip device 20 and the ruler body 10 are integrally molded using an injection molding process, ensuring a firm connection between them. This technique not only ensures a secure connection between the anti-slip device and the ruler body but also significantly improves the overall performance and lifespan of the product. Injection molding, as a highly efficient molding method, offers advantages such as fast production speed, high efficiency, high dimensional accuracy, and the ability to process complex shapes. Through this integral molding technology, the anti-slip device 20 and the ruler body 10 do not require additional bonding or assembly steps during production, thus avoiding the detachment problems that may occur in traditional processes.

[0076] Preferably, the thickness of the anti-slip device 20 is 0.5mm to 2mm to ensure that the gap between the ruler 10 and the paper surface is appropriate and to prevent ink from seeping in when marking lines.

[0077] Preferably, the surface of the anti-slip device 20 has a textured surface to enhance the anti-slip effect. By controlling the thickness of the anti-slip device within this range, a suitable gap can be ensured between the ruler 10 and the paper surface. This gap design is neither too large, which would affect the tight fit between the ruler and the paper, nor too small, which would increase the resistance when drawing lines or cause ink to seep under the ruler, thus effectively avoiding stains and errors that may occur when drawing or writing.

[0078] Preferably, such as Figure 3 and Figure 4 As shown, the ruler 10 is made of transparent plastic and has graduation lines. The graduation lines and the anti-slip device 20 have a clear color contrast, making it easy to read. The color matching between the graduation lines and the anti-slip device 20 has been optimized to create a clear contrast. This color contrast design effectively reduces visual errors, allowing users to quickly and accurately read the graduations during use, even in low-light or complex operating environments, making it easy to complete measurement and drawing tasks.

[0079] Specifically, such as Figures 5 to 7 As shown, the anti-slip device 20 can be distributed along the edge of the back of the ruler 10 to form a continuous anti-slip ring, which can provide stable support when the ruler 10 contacts the working surface and effectively prevent the ruler from sliding. In addition, the anti-slip device 20 can also cover the entire back contact surface of the ruler 10, thereby providing more comprehensive anti-slip protection, especially suitable for usage scenarios that require higher stability.

[0080] Regardless of the layout, the outer edge of the anti-slip device 20 is designed not to extend beyond the outer edge of the ruler body 10. This detail not only maintains the integrity and aesthetics of the ruler body 10, avoiding dimensional deviations or visual inconsistencies caused by exposed anti-slip devices, but also ensures the accuracy and consistency of the ruler body during use.

[0081] The ruler body 10 is designed to encompass a variety of common drawing and measuring tools, including rulers, protractors, right-angled triangle rulers, and isosceles triangle rulers. These ruler bodies 10 are widely used in education, engineering design, architectural drawing, and daily study and office settings. To meet the usage needs and functional characteristics of different ruler bodies, the anti-slip device 20 is customized according to the shape and purpose of each ruler body, ensuring that its anti-slip performance is perfectly combined with the function of the ruler body.

[0082] Furthermore, the anti-slip device 20 is made of either silicone or thermoplastic polyurethane (TPU). Both materials are renowned for their excellent flexibility, anti-slip properties, and abrasion resistance. Silicone has good elasticity, providing excellent adhesion to various surfaces while remaining soft and not damaging the contact surface; while TPU has high strength and durability, able to withstand frequent friction and wear from long-term use. These characteristics enable the anti-slip device 20 to not only provide reliable anti-slip effects in the short term but also maintain stability and durability during long-term use, thereby extending the lifespan of the ruler.

[0083] It is important to emphasize that, such as Figure 9 and Figure 10 As shown, the corner of the ruler body, which incorporates the anti-slip device 20, forms a retrieval area f, which can deform. This technology not only improves the anti-slip performance of the ruler but also cleverly solves the problem of user convenience when picking up and operating the ruler, demonstrating a deep integration of function and user experience.

[0084] Specifically, the design of the retrieval area f cleverly solves the inconvenience of traditional plastic rulers in terms of retrieval and use. The retrieval area f is deformable and can switch between two states according to usage needs: in the first state (fitted state), its back is tightly fitted to the working plane of the ruler body 10, ensuring the flatness and stability of the ruler during use.

[0085] In the second state (holding state), this area can deform outward to form a grip that is easy for the user to hold, thus facilitating access and operation. This innovative technology not only reduces user fatigue when frequently picking up and putting down the ruler, but also avoids damage or measurement errors caused by the ruler slipping, significantly improving the tool's usability and user experience. Through the integrated design of the anti-slip device 20 and the ruler body 10, the ruler maintains its overall flatness and aesthetics when not in use, while providing a stable grip when needed, further optimizing the ruler's applicability in different scenarios.

[0086] Preferably, when the anti-slip plastic ruler 100 is used in close contact with the working surface, the contact surface of the back area of ​​the anti-slip plastic ruler, covering the corner of the ruler body with the anti-slip device 20, transitions smoothly to the contact surface of the ruler body without the anti-slip device 20. This ensures that the contact surface of the entire back of the anti-slip plastic ruler maintains a high degree of flatness and stability when in contact with the working surface, thereby avoiding slippage or measurement errors caused by local protrusions or unevenness. It should be explained that, in this utility model, the term "contact surface" is used to describe the area of ​​the back of the plastic ruler that contacts the object being measured or the working surface during actual use.

[0087] In summary, the anti-slip device 20 not only provides the necessary anti-slip function but also integrates perfectly with the structure of the ruler body 10, ensuring the integrity and consistency of the ruler during use. This technical detail not only improves the ruler's measurement accuracy and drawing stability but also further optimizes the user experience, enabling the anti-slip plastic ruler 100 to exhibit excellent performance and reliability in various usage scenarios.

[0088] In other words, from the perspective of the functional integration of the anti-slip angle s and the ruler body 10, the anti-slip plastic ruler 100 includes a ruler body 10 made of rigid plastic and at least one anti-slip angle s made of soft plastic m. As the main measuring and drawing tool, the rigid plastic material of the ruler body 10 ensures the rigidity and stability of the ruler during use, providing a basic guarantee for accurate measurement and drawing.

[0089] The anti-slip angle 's' utilizes the properties of the soft plastic 'm' to provide additional anti-slip performance for the ruler, effectively solving the problem of inaccurate measurement or drawing caused by slippage during use of traditional plastic rulers. This combination of rigid and soft plastic not only optimizes the ruler's functionality but also enhances its stability and reliability in practical use.

[0090] The anti-slip angle s is located at the corner of the ruler body 10 and is integrally molded with the ruler body 10 through injection molding. This not only ensures a firm connection between the anti-slip angle s and the ruler body 10 but also avoids structural weaknesses caused by bonding or splicing. The thickness of the anti-slip angle s is consistent with that of the ruler body 10, allowing the contact surface on the back of the anti-slip plastic ruler to fit tightly against the working surface during use, thereby providing stable support and ensuring the accuracy of measurement and drawing.

[0091] In addition, the anti-slip corner s also functions as the gripping area f. This area fits snugly against the ruler body 10 when not in use, but deforms when needed, providing a convenient grip and further enhancing the ruler's usability and ease of operation. Other technical effects have already been described above and will not be repeated here.

[0092] It should be noted that the anti-slip angle s region, with its thickness consistent with the ruler body thickness, is specifically manifested as follows: Figure 10 This means that when the ruler body 10 only contains the anti-slip angle s and does not have an extended area of ​​soft plastic m, the thickness of the anti-slip angle s is the same as the thickness of the ruler body 10.

[0093] Preferably, the soft plastic m is distributed along the edge of the back surface of the ruler 10, or the entire back surface of the ruler 10 is covered with soft plastic m; and the outer edge of the soft plastic m does not extend beyond the outer edge of the ruler 10. The technical effects of this method have been described above and will not be repeated here.

[0094] In a more preferred embodiment, at least a portion of the soft plastic m at the corner of the ruler body transitions seamlessly with at least a portion of the soft plastic m covering the back of the ruler body. This design not only ensures the integrity and consistency between the anti-slip angle s and the ruler body 10, but also further enhances the stability and anti-slip performance of the ruler during use. In fact, the soft plastic m located at the corner of the ruler body forms the aforementioned anti-slip angle s.

[0095] Similarly, when the anti-slip plastic ruler 100 is used in close contact with the working surface, the contact surface on the back of the ruler 10 covered with soft plastic m transitions smoothly with the contact surface not covered with soft plastic m, so as to ensure that the contact surface on the back of the anti-slip plastic ruler can stably adhere to the working surface. The specific technical effects and objectives have been described above and will not be repeated here.

[0096] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0097] This invention provides an anti-slip plastic ruler. Specific examples are used to illustrate the principle and implementation of this invention. The descriptions of the embodiments are merely for the purpose of helping to understand this invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A non-slip plastic ruler comprising a ruler body and at least one non-slip corner, characterised in that: The ruler body is made of hard plastic, and the anti-skid corner is made of soft plastic; The anti-skid corner is located at the corner of the ruler body, and the anti-skid corner is integrally formed with the ruler body at the corner of the ruler body by an injection molding process; The thickness of the anti-skid corner is consistent with the thickness of the ruler body, so that the fitting surface of the back of the anti-skid plastic ruler can be stably fitted on the working plane; The anti-skid corner is a taking area, and the taking area can be deformed; In the first state, the back of the taking area is fitted on the working plane where the anti-skid plastic ruler is located; in the second state, the taking area is deformed outward relative to the working plane to be held and operated by a user.

2. The anti-slip plastic ruler according to claim 1, wherein: The soft plastic is distributed along the edge of the back of the ruler body, or the fitting surface of the back of the ruler body is covered with soft plastic; And the outer edge of the soft plastic does not exceed the outer edge of the ruler body.

3. The slip resistant plastic ruler of claim 1, wherein: The soft plastic at the corner of the ruler body is continuously connected with at least a part of the soft plastic covering the back of the ruler body; The material of the soft plastic includes one or both of silica gel and TPU, The ruler body includes at least one of a ruler, a protractor, a right triangle ruler, and an isosceles triangle ruler; The ruler body is made of transparent plastic, and the ruler body is provided with scale lines; The soft plastic at the corner of the ruler body forms the anti-skid corner.

4. The anti-skid plastic ruler according to claim 1, wherein: When the anti-skid plastic ruler is used by being closely attached to a working plane, the fitting surface of the back of the anti-skid plastic ruler, which is covered with soft plastic, and the fitting surface of the back of the anti-skid plastic ruler, which is not covered with soft plastic, are flatly connected, so that the fitting surface of the back of the anti-skid plastic ruler can be stably fitted on the working plane.

5. A non-slip plastic ruler comprising a ruler body and a non-slip device, characterized in that: The ruler body is made of hard plastic, and the anti-skid device is made of soft plastic; The anti-skid device is fused with the outer area of at least one corner of the ruler body, the anti-skid device is distributed along the edge of the ruler body, and the anti-skid device can be bent and deformed and the bending angle is adjustable.

6. The non-slip plastic ruler of claim 5, wherein: The anti-skid device is integrally formed with the ruler body by an injection molding process, so as to ensure the firm connection between the anti-skid device and the ruler body; The surface of the anti-skid device is provided with concave-convex textures, so as to enhance the anti-skid effect. The ruler body is made of transparent plastic, and the ruler body is provided with scale lines, and the color contrast between the scale lines and the anti-skid device is obvious, so as to facilitate reading.

7. The non-slip plastic ruler of claim 5, wherein: The thickness of the anti-skid device is 0.5 mm to 2 mm, so as to ensure that the gap between the ruler body and the paper surface is moderate, and the ink penetration is avoided when the line is drawn.

8. The non-slip plastic ruler of claim 5, wherein: The anti-skid device is distributed along the edge of the back of the ruler body, or the fitting surface of the back of the ruler body is covered with the anti-skid device. The outer edge of the anti-skid device does not exceed the outer edge of the ruler body.

9. The non-slip plastic ruler of claim 5, wherein: The ruler body includes at least one of a ruler, a protractor, a right triangle ruler, and an isosceles triangle ruler, and the anti-skid device of each ruler body is customized according to the shape of the ruler body. The material of the anti-skid device is silica gel or TPU, and has the characteristics of wear resistance and aging resistance, so as to ensure the stability of long-term use.

10. The non-slip plastic ruler of claim 5, wherein: The corner of the ruler body fused with the anti-skid device forms a taking area, and the taking area can be deformed; In the first state, the back of the taking area is fitted on the working plane where the ruler body is located; in the second state, the taking area is deformed outward relative to the working plane to be held and operated by a user.

11. The non-slip plastic ruler of claim 5, wherein: The anti-skid plastic ruler is used by sticking to a working plane, and the sticking surface of the back of the anti-skid plastic ruler and the sticking surface of the corner of the ruler body covered with the anti-skid device are flatly connected, so that the sticking surface of the back of the anti-skid plastic ruler can be stably stuck to the working plane.

12. A non-slip plastic ruler comprising a ruler body and at least one non-slip corner, characterized in that: The ruler body is made of hard plastic, and the anti-skid corner is made of soft plastic. The anti-skid corner is located at the corner of the ruler body, and the anti-skid corner is integrally formed with the ruler body at the corner of the ruler body by an injection molding process. The soft plastic is distributed along the edge of the back of the ruler body, or the sticking surface of the back of the ruler body is covered with the soft plastic. The soft plastic at the corner of the ruler body is continuously connected with at least part of the soft plastic covering the back of the ruler body. The anti-skid corner is a taking area, and the taking area can be deformed.

13. The non-slip plastic ruler of claim 12, wherein: The outer edge of the soft plastic covering the back of the ruler body does not exceed the outer edge of the ruler body. The material of the soft plastic includes one or both of silica gel and TPU. The ruler body includes at least one of a ruler, a protractor, a right triangle ruler, and an isosceles triangle ruler. The ruler body is made of transparent plastic, and the ruler body is provided with a scale line. In the first state, the back of the taking area is stuck to the working plane where the anti-skid plastic ruler is located.

14. A non-slip plastic ruler comprising a ruler body and at least one non-slip corner, characterized in that: In the first state, the back of the taking area is stuck to the working plane where the anti-skid plastic ruler is located. The ruler body is made of hard plastic, and the anti-skid corner is made of soft plastic. The anti-skid corner is located at the corner of the ruler body, and the anti-skid corner is integrally formed with the ruler body at the corner of the ruler body by an injection molding process. The soft plastic is distributed along the edge of the back of the ruler body. The soft plastic at the corner of the ruler body is continuously connected with at least part of the soft plastic covering the back of the ruler body. The anti-skid corner is a taking area, and the taking area can be deformed. The anti-skid plastic ruler is used by sticking to a working plane, and the sticking surface of the back of the anti-skid plastic ruler and the sticking surface of the corner of the ruler body covered with the anti-skid device are flatly connected, so that the sticking surface of the back of the anti-skid plastic ruler can be stably stuck to the working plane.

15. The anti-skid plastic ruler according to claim 14, wherein: The outer edge of the soft plastic covering the back of the ruler body does not exceed the outer edge of the ruler body. In the first state, the back of the taking area is stuck to the working plane where the anti-skid plastic ruler is located. In the second state, the taking area is deformed outward relative to the working plane to be held and operated by a user.

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