A putty knife

Abstract

The utility model provides a kind of putty knife, including blade body and the handle of cooperation with blade body, handle has handle portion and joint, handle is connected with blade body by joint, handle portion is used to provide holding position;Two ends of blade body form blade edge portion and connecting portion respectively, connecting portion cooperates with joint;The edge of blade edge portion forms blade edge, and there is included angle α between the center line of blade edge and handle portion, and 45 ° ≤ α < 90 °;Two sides of blade body are equipped with first side and second side, two ends of first side connect blade edge portion and connecting portion, and two ends of second side connect blade edge portion and connecting portion respectively.The putty knife of the utility model avoids that operator is mistaken to touch material when using putty knife to extend into to the material scraping of storage spare, so as to cause material to be contaminated, operator skin is soiled or damaged, operator clothing is soiled or damaged etc.

Description

Technical Field

[0001] This utility model relates to the field of tool technology, and in particular to a putty knife. Background Technology

[0002] A putty knife is a multi-functional tool that can be used for wall finishing, vehicle repair, painting, and artistic creation. A putty knife typically consists of two parts: the blade and the handle. The operator controls the blade by holding the handle.

[0003] The cutting edge of the blade at the end furthest from the handle is usually perpendicular to the center line of the handle. In scenarios where a putty knife needs to be inserted into a storage container to scrape material, especially when scraping material near the bottom of the container, the operator is prone to accidentally touching the material, resulting in material contamination, skin soiling or injury to the operator, and soiling or damaging the operator's clothing.

[0004] Therefore, how to design a putty knife to overcome the above-mentioned technical problems is a question. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a putty knife that prevents operators from accidentally touching materials when scraping them from inside the storage container, thus avoiding contamination of the materials, dirt or injury to the operator's skin, or dirt or damage to the operator's clothing.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A putty knife includes a blade and a handle that cooperates with the blade.

[0008] The handle has a handle portion and a connecting portion, the handle is connected to the blade via the connecting portion, and the handle portion is used to provide a gripping position;

[0009] The blade has a cutting edge and a connecting part at each end, and the connecting part mates with the joint. The edge of the cutting edge forms a cutting edge, and the cutting edge has an angle α with the center line of the handle, where 45°≤α<90°. The blade has a first side and a second side on both sides, with the first side connecting the cutting edge and the connecting part at both ends, and the second side connecting the cutting edge and the connecting part at both ends.

[0010] In one embodiment, the second side has a main body section and an extension section, the extension section being located at the cutting edge of the blade and perpendicular to the cutting edge.

[0011] In one embodiment, the blade and the handle are an integral structure.

[0012] In one embodiment, the connecting portion is detachably connected to the joining portion.

[0013] In one embodiment, the joint is provided with a splicing groove, the connecting part is received in the splicing groove, and the connecting part is fixed to the joint by a fastener. The connecting part is provided with a positioning hole adapted to the fastener.

[0014] In one embodiment, the connecting part is provided with a pin, and the joining part is provided with a pin hole adapted to the pin. The connecting part and the joining part are connected and fixed by the cooperation of the pin and the pin hole.

[0015] In one embodiment, the outer surface of the handle portion is provided with anti-slip texture.

[0016] In one embodiment, the handle portion is provided with an anti-slip element and a mounting groove, the anti-slip element is at least partially disposed in the mounting groove, and the anti-slip element is made of plastic; the number of anti-slip elements is at least two, and the number of mounting grooves is the same as the number of anti-slip elements.

[0017] In one embodiment, the blade is provided with an auxiliary component, which is detachably mounted on the blade portion. One end of the auxiliary component forms an auxiliary cutting edge, and when the auxiliary component engages with the blade portion, the auxiliary component completely covers the cutting edge.

[0018] In one embodiment, the auxiliary cutting edge is perpendicular to the center line of the handle portion.

[0019] In summary, the putty knife of this invention effectively prevents operators from accidentally touching the material when scraping it from inside the storage container, thus avoiding contamination of the material, dirt or injury to the operator's skin, or dirt or damage to the operator's clothing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0021] Figure 1 A perspective view of a putty knife as an exemplary embodiment of the present invention;

[0022] Figure 2 for Figure 1 The front view of the putty knife shown;

[0023] Figure 3 for Figure 1 The diagram shows the usage status of the putty knife;

[0024] Figure 4 An exploded view of a putty knife, which is another exemplary embodiment of the present invention;

[0025] Figure 5 An exploded view of a putty knife, which is another exemplary embodiment of this utility model;

[0026] Figure 6 An exploded view of a putty knife, which is another exemplary embodiment of this utility model;

[0027] Figure 7 An exploded view of a putty knife, which is an exemplary embodiment of this utility model.

[0028] The above figures include the following reference numerals:

[0029] 10. Putty knife; 110. Blade; 111. Blade edge; 1111. Blade rim; 112. Connecting part; 1121. Positioning hole; 1122. Pin; 113. First side; 114. Second side; 1141. Main body section; 1142. Extension section; 120. Handle; 121. Handle part; 1211. Center line; 122. Joint; 1221. Splicing groove; 123. Mounting groove; 124. Anti-slip part; 130. Auxiliary part; 131. Auxiliary blade rim; 20. Storage part; 210. Side wall of storage part; 220. Bottom wall of storage part. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms "upper," "lower," "left," "right," and "middle," etc., used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships are also considered within the scope of implementation of this utility model without substantial changes to the technical content.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] An embodiment of this utility model provides a putty knife. The following will describe in detail an embodiment of this utility model with reference to the accompanying drawings.

[0033] To gain a comprehensive understanding of this invention, a brief description of the putty knife will be provided first:

[0034] A putty knife mainly consists of a blade, a handle, and the connecting parts between the two. The blade is usually made of a thin, flexible metal (such as stainless steel or carbon steel), and is often rectangular or trapezoidal in shape, with a smooth and sharp cutting edge. The handle is generally made of wood, plastic, or metal, providing a comfortable grip. Of course, the handle can also be constructed using other methods. Putty knives are primarily used for mixing and applying putty, plaster, and other paste-like materials. In the construction and decoration industry, they can be used for filling, leveling, and repairing wall and wood surfaces, and are also commonly used to remove old paint, stains, cement, and other adhering substances. When using a putty knife to apply putty, plaster, or other paste-like materials, the knife must first be inserted into the storage compartment to scrape the material. The blade edge of existing putty knives used for scraping materials is usually perpendicular to the handle. This causes the operator's skin or clothing to be too close to the material when scraping, which can easily lead to accidental contact with the material, resulting in contamination of the material, dirt on the operator's skin, and dirt on the operator's clothing. If the material is corrosive, toxic, or irritating, it may also cause skin damage or damage to the operator's clothing.

[0035] See also Figure 1 and Figure 2The putty knife 10 includes a blade 110 and a handle 120 that cooperates with the blade 110. The handle 120 has a grip portion 121 and a connecting portion 122. The handle 120 is connected to the blade 110 via the connecting portion 122, and the grip portion 121 provides a holding position. The blade 110 has a cutting edge 111 and a connecting portion 112 at its two ends, respectively, with the connecting portion 112 cooperating with the connecting portion 122. The edge of the cutting edge 111 forms a cutting edge 1111, and there is an included angle α between the cutting edge 1111 and the center line 1211 of the handle portion 121, where 45° ≤ α < 90°. For example, the included angle α can be 45°, 75°, 89°, etc. The blade 110 has a first side 113 and a second side 114 on both sides. The two ends of the first side 113 are connected to the blade part 111 and the connecting part 112, and the two ends of the second side 114 are connected to the blade part 111 and the connecting part 112, respectively.

[0036] In practical use, the operator can hold the handle 120 to control the blade 111 to perform the operation;

[0037] See Figure 3 When using the putty knife 10 to scrape the material on the side wall 210 of the storage unit, after the blade edge 1111 is pressed against the side wall 210 of the storage unit to scrape the material, since there is an angle α between the blade edge 1111 and the center line 1211 of the handle part 121, the handle 120 can be tilted upward relative to the bottom wall 220 of the storage unit, thereby moving away from the bottom wall 220 of the storage unit. This ensures that the operator's hand is relatively away from the bottom wall 220 of the storage unit, thus avoiding the operator accidentally touching the material on the bottom wall 220 of the storage unit.

[0038] Similarly, when using the putty knife 10 to scrape the material on the bottom wall 220 of the storage unit, after the blade edge 1111 is pressed against the bottom wall 220 of the storage unit to scrape the material, since there is an angle α between the blade edge 1111 and the center line 1211 of the handle 121, the handle 120 can be tilted relative to the side wall 210 of the storage unit, thereby moving away from the side wall 210 of the storage unit. This ensures that the operator's hand can be kept away from the side wall 210 of the storage unit, avoiding the operator from accidentally touching the material on the side wall 210 of the storage unit.

[0039] It should be emphasized that the putty knife 10 of this utility model has an included angle α between the blade edge 1111 and the center line 1211 of the handle part 121. When the putty knife 10 is inserted into the storage part 20 to scrape the material, it can ensure that the operator is relatively far away from the material, thereby avoiding the operator from accidentally touching the material, which could lead to material contamination, dirt or injury to the operator's skin, dirt or damage to the operator's clothing, etc.

[0040] In one embodiment, the included angle α is 83°. This effectively ensures that the operator is relatively far away from the material, thereby avoiding the operator's easy accidental contact with the material, which could lead to material contamination, dirt or injury to the operator's skin, dirt or damage to the operator's clothing, etc.

[0041] Understandably, the storage container 20 can be a paint bucket, putty bucket, etc.

[0042] The blade 110 can be designed in a trumpet shape (i.e., a gradually narrowing shape where the blade 111 is wider and the blade 110 is narrower near the handle 120). In this way, when the operator holds the handle 120, only a small force is needed to generate a large scraping pressure through the wider surface of the blade 111, which is especially suitable for scenarios that require strong pushing force, such as removing old paint or applying thick layers of putty.

[0043] Further, see Figure 2 The second side 114 has a main body section 1141 and an extension section 1142. The extension section 1142 is located at the cutting edge 111 of the blade body 110, and the extension section 1142 is perpendicular to the cutting edge 1111. When using the putty knife 10 to scrape material on the side wall 210 of the storage component, after the cutting edge 1111 is pressed against the side wall 210 of the storage component to scrape the material, the extension section 1142 can press against the bottom wall 220 of the storage component, which can provide positioning during operation. At the same time, it can scrape the material located in the gap between the side wall 210 and the bottom wall of the storage component, reducing material waste.

[0044] When using the putty knife 10 to scrape material from the bottom wall 220 of the storage unit, after the blade edge 1111 abuts against the bottom wall 220 of the storage unit to scrape the material, the extended section 1142 can abut against the side wall 210 of the storage unit, which can provide positioning during the operation and scrape the material located in the gap between the side wall 210 and the bottom wall of the storage unit, reducing material waste.

[0045] In some embodiments, in conjunction with reference Figure 1 and Figure 2 The blade 110 and the handle 120 are integrated into one piece. This effectively ensures the structural strength of the putty knife 10 and prevents it from being easily damaged during operation.

[0046] For example, the blade 110 and the handle 120 can be integrally molded into a single structure.

[0047] For example, the blade 110 and the handle 120 can be manufactured separately, and then the blade 110 and the handle 120 can be integrated into a single structure by means of welding or the like.

[0048] Of course, the blade 110 and the handle 120 can also be constructed as a single unit in other ways.

[0049] Specifically, the blade 110 and handle 120 can be made of the same material to facilitate a one-piece construction. For example, both the blade 110 and handle 120 can be made of carbon steel. Carbon steel has the characteristics of high hardness and resistance to deformation. Of course, the blade 110 and handle 120 can also be made of different materials. For example, the blade 110 can be made of carbon steel, and the handle 120 can be made of hardwood.

[0050] In some embodiments, in conjunction with reference Figure 4 and Figure 5 The connecting part 112 and the joining part 122 are detachably connected. In this way, when either the blade 110 or the handle 120 is worn or damaged, only the blade 110 or the handle 120 can be replaced, reducing maintenance costs.

[0051] For example, see Figure 4 The joint 122 has a splicing groove 1221, and the connecting part 112 is received within the splicing groove 1221. The connecting part 112 is fixed to the joint 122 by a fastener (not shown). The connecting part 112 has a positioning hole 1121 that matches the fastener. Thus, the splicing groove 1221 can position the connecting part 112, facilitating the connection between the joint 122 and the connecting part 112. To connect the joint 122 and the connecting part 112, simply align the connecting part 112 with the splicing groove 1221 and insert it into place before installing the fastener; to separate the joint 122 and the connecting part 112, simply remove the fastener. The operation is simple and convenient. Specifically, the fastener can be a screw, bolt, etc.

[0052] For example, see Figure 5 The connecting portion 112 is provided with a pin 1122, and the engaging portion 122 has a pin hole (not shown) adapted to the pin 1122. The connecting portion 112 and the engaging portion 122 are connected and fixed by the engagement of the pin 1122 and the pin hole. This facilitates the assembly and disassembly of the connecting portion 112 and the engaging portion 122. Specifically, the pin 1122 can be formed by extending the connecting portion 112 outward. During the manufacturing process, the connecting portion 112 and the pin 1122 can be manufactured by integral molding, which facilitates processing while ensuring the firmness of the connection between the connecting portion 112 and the pin 1122.

[0053] For example, the joint 122 may have a threaded hole (not shown), and the connecting part 112 may have a thread that mates with the threaded hole. Specifically, for ease of machining, the wall of the threaded hole may have an internal thread, and the connecting part 112 may have an external thread that mates with the internal thread. In this way, the connection between the joint 122 and the connecting part 112 can be achieved through the mating of the internal and external threads, and the operation is simple and the connection is firm.

[0054] Understandably, the connecting portion 112 and the joining portion 122 can also be configured as other structures or achieve a detachable connection through other structures.

[0055] See Figure 1 and Figure 2 The outer surface of the handle portion 121 is provided with anti-slip texture (not shown). This increases the coefficient of friction when the operator grips the handle 120, making it easier for the operator to hold. The anti-slip texture can be machined during the machining of the handle portion 121, or it can be formed by milling after the handle portion 121 is machined. Furthermore, the anti-slip texture can be constructed as an uneven structure, which can further increase the coefficient of friction, allowing the operator to grip more securely. Specifically, the anti-slip texture can be constructed as a scale-like uneven structure, ensuring both anti-slip effect and aesthetics. Of course, the anti-slip texture can also be constructed as a two-dimensional texture. Understandably, only the anti-slip effect needs to be ensured, and the structural characteristics of the anti-slip texture are not subject to excessive constraints.

[0056] See Figure 6 The handle portion 121 is provided with an anti-slip element 124 and a mounting groove 123. The anti-slip element 124 is at least partially disposed within the mounting groove 123, and the anti-slip element 124 is made of plastic. Thus, when the operator grips the handle 120, the anti-slip element 124 increases the coefficient of friction, making it easier for the operator to grip. Simultaneously, the mounting groove 123 provides positioning for the anti-slip element 124, facilitating its installation. Specifically, the anti-slip element 124 can be disposed within the mounting groove 123 by means of adhesive bonding or other methods.

[0057] Furthermore, the number of anti-slip elements 124 is at least two, for example, two, three, four, etc. The number of mounting grooves 123 is the same as the number of anti-slip elements 124. This further ensures the anti-slip effect. In some embodiments, see [reference needed]. Figure 6 The number of anti-slip parts 124 and mounting grooves 123 can both be two. The two mounting grooves 123 can be respectively located on both sides of the handle, and the two anti-slip parts 124 are respectively located within the two mounting grooves 123 (due to viewing angle, the anti-slip parts 124 and mounting grooves 123 located on the back of the putty knife 10 are not shown). In this way, the anti-slip effect of the anti-slip parts 124 is effectively guaranteed while maintaining a simple structure.

[0058] See Figure 7 The blade has an auxiliary component 130, which is detachably mounted on the blade edge 111. One end of the auxiliary component 130 forms an auxiliary cutting edge 131. When the auxiliary component 130 engages with the blade edge 111, it completely covers the cutting edge 1111. Thus, the auxiliary component 130 provides protection for the blade edge 111.

[0059] In one embodiment, the auxiliary cutting edge 131 is parallel to the cutting edge 1111. Thus, in some applications where the cutting edge 1111 needs to contact hard materials, the auxiliary member 130 can be fitted onto the cutting edge 1111 to protect it from damage.

[0060] In one embodiment, the auxiliary cutting edge 131 is perpendicular to the center line 1211 of the handle portion 121. Thus, in some usage scenarios where the cutting edge 1111 and the center line of the handle portion 121 need to be perpendicular to each other, the auxiliary member 130 can be fitted onto the cutting edge 111 to adapt to different usage scenarios, and since it does not change the operator's original usage habits, it is convenient for the operator to use.

[0061] Specifically, the auxiliary component 130 can be made of hard materials such as carbon steel or soft materials such as plastic. Understandably, different auxiliary components 130 can be used for different usage scenarios, thereby effectively improving the applicability of the putty knife 10 and enhancing the user experience.

[0062] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A putty knife, comprising a blade and a handle for use with the blade, characterized in that, The handle has a handle portion and a connecting portion, the handle is connected to the blade via the connecting portion, and the handle portion is used to provide a gripping position; The blade has a cutting edge and a connecting part at each end, and the connecting part mates with the joint. The edge of the cutting edge forms a cutting edge, and the cutting edge has an angle α with the center line of the handle, where 45°≤α<90°. The blade has a first side and a second side on both sides, with the first side connecting the cutting edge and the connecting part at both ends, and the second side connecting the cutting edge and the connecting part at both ends.

2. The putty knife according to claim 1, characterized in that, The second side has a main body section and an extension section. The extension section is located at the blade edge of the blade and is perpendicular to the blade edge.

3. The putty knife according to claim 1, characterized in that, The blade and the handle are an integral structure.

4. The putty knife according to claim 1, characterized in that, The connecting part and the joining part are detachably connected.

5. The putty knife according to claim 4, characterized in that, The joint is provided with a splicing groove, the connecting part is received in the splicing groove, and the connecting part is fixed to the joint by fasteners. The connecting part is provided with positioning holes that are adapted to the fasteners.

6. The putty knife according to claim 4, characterized in that, The connecting part is provided with a pin, and the joining part is provided with a pin hole adapted to the pin. The connecting part and the joining part are connected and fixed by the cooperation of the pin and the pin hole.

7. The putty knife according to claim 1, characterized in that, The outer surface of the handle is provided with anti-slip texture.

8. The putty knife according to claim 1, characterized in that, The handle is provided with anti-slip components and mounting grooves. The anti-slip components are at least partially disposed in the mounting grooves and are made of plastic. There are at least two anti-slip components, and the number of mounting grooves is the same as the number of anti-slip components.

9. The putty knife according to claim 1, characterized in that, The blade is provided with an auxiliary component, which is detachably mounted on the blade. One end of the auxiliary component forms an auxiliary edge. When the auxiliary component is engaged with the blade, it completely covers the blade edge.

10. The putty knife according to claim 9, characterized in that, The auxiliary cutting edge is perpendicular to the center line of the handle portion.

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