Electric tool

Abstract

The utility model provides an electric tool which comprises a shell, a power source, a power source, a power source, a power source, a power source and a power source. The mounting part is provided with a guide rail which is used for being matched with the battery pack, and at least the guide rail is of a solid structure. According to the electric tool, the guide rail of the mounting part is arranged to be of the solid structure, the abrasion resistance of the guide rail is improved, the service life of the guide rail and the mounting part is prolonged, and then the service life of the electric tool is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of tools, and in particular to an electric tool. Background Art

[0002] Various power tools are often used in engineering construction, for example, electric wrenches are used to tighten and loosen bolts and nuts. Existing power tools usually have grooves designed on the mounting part to prevent the surface from shrinking due to excessive wall thickness. However, the grooves will reduce the wear resistance of the mounting part, thereby affecting the life of the mounting part. Summary of the invention

[0003] In view of this, the purpose of the present application is to provide an electric tool for improving the wear resistance of the mounting portion, thereby increasing the life of the electric tool.

[0004] In order to achieve the above object, the present application provides an electric tool, which includes:

[0005] A housing, wherein one end of the housing is formed with a mounting portion, and the mounting portion is used to mount external electrical components;

[0006] The mounting portion has a guide rail, and the guide rail is used to mate with the outer packaged electrical component, wherein at least the guide rail is a solid structure.

[0007] As a further improvement of the implementation manner of the present application, the material of the guide rail includes nylon and glass fiber; wherein the weight of the glass fiber accounts for more than 25% of the total weight of the guide rail.

[0008] As a further improvement of the implementation manner of the present application, the weight of the glass fiber accounts for 25% to 60% of the total weight of the guide rail.

[0009] As a further improvement of the implementation manner of the present application, the wall thickness of the mounting portion is 2mm-10mm.

[0010] As a further improvement of the implementation manner of the present application, a modification structure is provided on the outer surface of the mounting portion.

[0011] As a further improvement of the implementation manner of the present application, the modified structure includes a modified film layer, and the method of forming the modified film layer includes labeling and / or laser engraving.

[0012] As a further improvement of the implementation manner of the present application, the thickness range of the modified film layer includes 0.5-5 mm.

[0013] As a further improvement of the implementation manner of the present application, the modified structure includes a concave-convex structure.

[0014] As a further improvement to the implementation manner of the present application, a friction reducing structure is provided in at least a portion of the area where the guide rail contacts the outsourced electrical component.

[0015] As a further improvement of the embodiment of the present application, the friction reducing structure includes a metal friction reducing pad.

[0016] The electric tool provided in the present application improves the wear resistance of the guide rail by configuring the guide rail of the mounting portion to be a solid structure, thereby increasing the life of the guide rail and the mounting portion, and thereby increasing the life of the electric tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of an electric tool provided in one embodiment of the present application Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of an electric tool provided in one embodiment of the present application Figure 2 ;

[0019] Figure 3 A schematic structural diagram of an electric tool provided in another embodiment of the present application.

[0020] Marking Description:

[0021] 100. Shell; 110. Mounting portion; 111. Guide rail; 112. Accommodating cavity; 120. Modification structure; 130. Friction reduction structure; 140. Output shaft; 150. Grip portion; 200. Battery pack. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Reference Figure 1 and 2As shown, an embodiment of the present application provides an electric tool, including a housing 100, with a mounting portion 110 formed at one end of the housing 100, and the mounting portion 110 is used to mount external electrical components. When the electric tool is a DC electric tool, the external electrical component is a battery pack 200, and the battery pack 200 is mounted on the mounting portion 110 to power the electric tool. When the battery pack 200 is low on power, the battery pack 200 can be replaced, and when the electric tool is not used for a long time, the battery pack 200 can be removed to avoid leakage.

[0025] When the power tool is an AC / DC dual-purpose power tool, the external electrical components include a battery pack 200 or an adapter. When the power tool is used in a scenario where it is difficult to obtain AC power, such as when used outdoors, the matching battery pack 200 can be installed on the mounting portion 110 to power the power tool. When the power tool is used in a scenario where it is easier to obtain AC power, such as when used indoors, the adapter can be installed on the mounting portion 110 and the adapter can be directly connected to the AC power to supply AC power (AC power) to the power tool.

[0026] Furthermore, in this embodiment, the mounting portion 110 has a guide rail 111, and the guide rail 111 is used to mate with the external electrical component. Specifically, the mounting portion 110 is provided with a receiving cavity 112, and the guide rail 111 is formed on the side wall of the mounting portion 110 opposite to the receiving cavity 112. When the external electrical component is mounted on the mounting portion 110, after the external electrical component is aligned with the mounting portion 110, it is slid along the extension direction of the guide rail 111 to the locking position, and then the external electrical component is locked by the locking structure.

[0027] The accommodating cavity 112 is usually provided with a connecting terminal for connecting to a connecting terminal on an external electrical component so as to transmit the electrical energy of the external electrical component to the electric tool.

[0028] The housing 100 may also be provided with a gripping portion 150 for the operator to hold the tool with his hands and perform operations. The mounting portion 110 may be provided below the gripping portion 150 to ensure that the center of gravity of the power tool is low and the stability of the power tool during operation is ensured.

[0029] Taking the electric tool as an impact wrench / screwdriver as an example, a motor, a gear reduction mechanism and an impact device are usually arranged in the housing 100. The motor has an output shaft that provides a rotational output, the gear reduction mechanism is used to reduce the output shaft before rotating the output shaft, and the impact device includes an active impact block driven by the output shaft of the gear reduction mechanism, a passive impact block meshed with the active impact block, and a working shaft connected to the passive impact block and driven to rotate by the passive impact block, and a working head is installed on the working shaft. The drive of the motor is transmitted to the working head through the gear reduction mechanism and the impact device to tighten or remove the nut / screw. During the impact process, the impact wrench / screwdriver will generate a large impact force, and the impact wrench / screwdriver will generate a large vibration under the action of the impact force, so that during the operation of the impact wrench / screwdriver, the wear at the connection between the guide rail 111 and the external electrical components increases.

[0030] In addition, taking the electric hammer as an example of an electric tool, the electric hammer generally includes three functional modes, one is an impact mode (hammer mode) that outputs linear reciprocating motion, the other is a drilling mode that outputs rotational motion, and a hammer-drill mode that realizes both impact and rotation. The housing of the electric hammer is usually provided with a motor, a gear reduction mechanism, an impact mechanism, a drilling mechanism, a clutch mechanism and other devices, and the above devices work together to enable the electric hammer to switch between the above modes. In any working mode, the electric hammer will generate large vibrations, which increases the wear of the connection between the guide rail 111 and the external electrical components during the operation of the electric hammer.

[0031] Therefore, in this embodiment, at least the guide rail 111 is a solid structure to solve the above problem. The detailed principle is as follows:

[0032] Similar to the power tools described above, due to the large vibrations generated during operation, the wear at the connection between the guide rail 111 and the external electrical components increases. In addition, the repeated plugging and unplugging of the external electrical components will also cause the mounting portion 110 to be frequently worn, which reduces the life of the power tool. For this reason, it is necessary to improve the wear resistance of the mounting portion 110. The power tool provided in this embodiment, by setting the guide rail 111 of the mounting portion 110 as a solid structure, improves the wear resistance of the guide rail 111 compared to the structure of setting a groove on the guide rail 111 in the prior art, and improves the life of the guide rail 111 and the mounting portion 110, thereby improving the life of the power tool.

[0033] In addition, in order to further improve the wear resistance without affecting the overall aesthetics and saving costs, the wall thickness of the mounting portion 110 needs to be set within an appropriate range. According to research by technicians, in this embodiment, the wall thickness of the mounting portion 110 is 2mm-10mm, for example, it can be 2mm, 3mm, 5mm, 8mm, 10mm, etc. Among them, setting the wall thickness of the mounting portion 110 to 2mm-10mm can effectively ensure the structural strength, improve the wear resistance of the guide rail 111, and improve the life of the guide rail 111 and the mounting portion 110, thereby improving the life of the power tool, while avoiding excessive costs.

[0034] Although the solid structure of the mounting portion 110 can reduce the wear of the guide rail and increase the life of the power tool, the technicians found that when the wall thickness is thicker, the mounting portion 110 shrinks seriously, so the technicians conducted a series of studies to further improve the shrinkage problem based on the solid structure of the mounting portion 110.

[0035] In one embodiment, the material forming the mounting portion 110 includes nylon and glass fiber (glass fiber), wherein glass fiber is a high-strength, low-density fiber material, and adding it to nylon can significantly improve the mechanical properties of the material. This material has many advantages, such as high strength, high rigidity, wear resistance, high temperature resistance, etc., so a certain proportion of glass fiber is usually added to the nylon material to form a high-strength, high-rigidity, wear-resistant, and high-temperature resistant electric housing.

[0036] Research by technicians has found that when the weight of the glass fiber accounts for more than 25% of the total weight of the guide rail 111, such as 25%, 50%, 70%, 90%, etc., the surface shrinkage problem of the mounting portion 110 can be effectively solved.

[0037] In one embodiment, the weight of the glass fiber accounts for 25% to 60% of the total weight of the guide rail 111, for example, it can be 35%, 40%, 45%, 60%, etc. Among them, if the weight of the glass fiber accounts for too low a proportion of the total weight of the guide rail 111, it is not conducive to improving the mechanical properties of the material. If the weight of the glass fiber accounts for too high a proportion of the total weight of the guide rail 111, it will also affect the toughness and impact resistance of the material. In addition, too high a proportion of glass fiber may also increase the difficulty of material processing. For example, higher injection pressure and temperature may be required during injection molding. At the same time, problems such as glass fiber exposure and surface roughness may also occur. Therefore, in this embodiment, the weight of the glass fiber is set to account for 25% to 60% of the total weight of the guide rail 111. At this ratio, the surface shrinkage problem of the mounting portion 110 can be better solved while ensuring the mechanical properties of the material.

[0038] In addition, another embodiment of the present application provides a solution for solving the problem of poor aesthetics of the outer surface of the mounting portion 110 caused by shrinkage of the mounting portion 110. Figure 1 and 2 As shown, in this embodiment, a decorative structure 120 is provided on the outer surface of the mounting portion 110. The decorative structure 120 is provided in the shrunk area of ​​the mounting portion 110 to enhance the recognition and aesthetics of the electric tool.

[0039] In one embodiment, the modified structure 120 includes a modified film layer, and the modified film layer is formed by labeling and / or laser engraving.

[0040] Among them, various patterns, texts or logos can be formed on the surface of the product through laser engraving, which can increase the personalization and brand value of the product. Secondly, the modified film layer formed by laser engraving usually has high wear resistance and corrosion resistance, which can improve the service life and stability of the product. This is very important for some products that are often in contact with the external environment or need to be used for a long time. In addition, laser engraving technology also has the characteristics of high processing precision and high efficiency. It can quickly and accurately form a film layer on the surface of the product, which is suitable for large-scale production. Moreover, the film layer formed by laser engraving can also add some special functions to the product, such as anti-slip, anti-reflective, etc. This can improve the safety and convenience of product use.

[0041] Among them, it is more economical to form a modified film layer by labeling, especially in large-scale production. At the same time, labeling can be customized with various patterns, colors and texts, so as to achieve personalized design and meet different needs. In addition, if the content or design of the film needs to be changed, it is only necessary to replace the label, which is relatively simple to operate. Furthermore, labeling generally does not cause damage to the original surface of the product, so it is suitable for some products with high surface quality requirements. Moreover, labeling can also convey relevant information of the product, such as brand, model, instructions for use, etc.

[0042] In one embodiment, the thickness of the modified film layer ranges from 0.5 to 5 mm, such as 0.5, 1, 2 mm, 3 mm, 5 mm, etc. The thickness of the modified film layer is set to 0.5 to 5 mm, which can ensure the durability of the modified film layer and avoid the modified film layer being too thick, thereby increasing the volume of the product and affecting the normal use of the product.

[0043] In one embodiment, the modification structure 120 includes a concave-convex structure, which is used to increase the recognition and aesthetics of the product. The concave-convex structure can be arbitrarily combined and arranged as needed, and is not specifically limited.

[0044] Reference Figure 3As shown, in one embodiment, in order to further reduce the wear at the connection between the guide rail 111 and the external electrical component, at least a portion of the area where the guide rail 111 contacts the external electrical component is provided with a friction-reducing structure 130, and the friction-reducing structure 130 can further reduce the wear caused by vibration and / or plugging and unplugging of the external electrical component. In this embodiment, by providing the friction-reducing structure 130 at least a portion of the area where the guide rail 111 contacts the external electrical component, the wear when contacting the external electrical component can be effectively reduced, thereby increasing the life of the guide rail 111.

[0045] In one embodiment, the friction reduction structure 130 includes a metal friction reduction gasket. When the external electrical component is removed and reinstalled, the metal friction reduction gasket is used to contact the external electrical component to prevent the external electrical component from directly contacting the guide rail 111. The wear resistance of the metal friction reduction gasket can effectively reduce the wear of the guide rail 111. Further, the metal friction reduction gasket can be connected to the guide rail 111 through a connecting member, wherein the connecting member can be a screw, a screw, etc. The metal friction reduction gasket can protrude from the surface of the guide rail 111 to contact the external electrical component to prevent the external electrical component from directly contacting the guide rail 111, thereby effectively reducing the wear of the guide rail 111.

[0046] It should be noted that "some body" or "some part" can be a part of the corresponding "component", that is, "some body" or "some part" can be integrally formed with the "other parts of the component"; it can also be an independent component that can be separated from the "other parts of the component", that is, "some body" or "some part" can be manufactured independently and then combined with the "other parts of the component" into a whole. The expression of the above-mentioned "some body" or "some part" in this application is only one of the implementation methods, for the convenience of reading, and not to limit the scope of protection of this application. As long as it contains the above-mentioned features and has the same function, it should be understood as an equivalent technical solution of this application.

[0047] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown to achieve the desired results.

[0048] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; based on the concept of the present application, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0049] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. An electric tool, characterized in that: include: A housing, wherein one end of the housing is formed with a mounting portion, and the mounting portion is used to mount external electrical components; The mounting portion has a guide rail, and the guide rail is used to be matched with the external electrical component, wherein at least the guide rail is a solid structure.

2. The electric tool according to claim 1, characterized in that: The guide rail is made of nylon and glass fiber, wherein the weight of the glass fiber accounts for more than 25% of the total weight of the guide rail.

3. The electric tool according to claim 2, characterized in that: The weight of the glass fiber accounts for 25% to 60% of the total weight of the guide rail.

4. The electric tool according to claim 1, characterized in that: The wall thickness of the mounting portion is 2mm-10mm.

5. The electric tool according to claim 1, characterized in that: The outer surface of the mounting portion is provided with a modification structure.

6. The electric tool according to claim 5, characterized in that: The modified structure includes a modified film layer, and the modified film layer is formed by labeling and / or laser engraving.

7. The electric tool according to claim 6, characterized in that: The thickness of the modified film layer ranges from 0.5 to 5 mm.

8. The electric tool according to claim 5, characterized in that: The modified structure includes a concave-convex structure.

9. The electric tool according to claim 1, characterized in that: At least a portion of the area where the guide rail contacts the external electrical component is provided with a friction reducing structure.

10. The electric tool according to claim 9, characterized in that: The friction reducing structure comprises a metal friction reducing pad.

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