Narrow-distance installation tool

Abstract

The utility model discloses a narrow-distance installation tool, which belongs to the technical field of hand tools, and comprises a first wrench and a second wrench, the first wrench comprises a wrench handle, two ends of the wrench handle are respectively provided with a force arm part and a wrench part, the wrench part is provided with a bayonet matched with the outline of a nut, the force arm part is provided with a sleeve hole, and the sleeve hole is communicated with the wrench handle. One end of the second wrench can be inserted into the sleeve hole and drive the first wrench to rotate. The first wrench is placed in the narrow space, one end of the first wrench is connected to the nut in a clamped mode, the other end of the first wrench is connected with the second wrench, an operator can apply force to the second wrench in a spacious place, then the nut in the narrow space can be quickly screwed or loosened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hand tools and relates to a narrow-pitch installation tool for maintaining a mid-mounted motor. Background Art

[0002] Power-assisted bicycles are becoming increasingly popular due to their energy-saving, environmentally friendly, and rider-assisting features. The mid-mounted motor, a key power component in power-assisted bicycles, is crucial for overall vehicle performance.

[0003] In practice, installing a mid-mounted motor on a power-assisted bicycle frame presents numerous inconveniences: Due to the frame structure and the specific mounting location of the mid-mounted motor, a narrow space exists where the adjustment nut on the mid-mounted motor is located.

[0004] like Figure 1 In the existing installation situation shown, after the mid-mounted motor 2' is installed on the vehicle frame 1', when the height is adjusted through the adjustment mechanism 3', since the adjustment mechanism 3' is close to the mid-mounted motor housing, it is extremely difficult to disassemble and assemble the adjustment nut thereon using a conventional wrench. This not only affects the debugging efficiency of the mid-mounted motor, but also brings inconvenience to subsequent repair and maintenance work. Utility Model Content

[0005] The purpose of the utility model is to provide a narrow-space installation tool, a set of installation tools designed for narrow spaces, and solve the technical problems in the background technology.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A narrow-gauge installation tool consists of a first wrench and a second wrench. The first wrench includes a wrench handle, and a force arm portion and a wrench portion are respectively provided at both ends of the wrench handle. The wrench portion is provided with a bayonet that matches the nut profile, and the force arm portion is provided with a sleeve hole. One end of the second wrench can be inserted into the sleeve hole and drive the first wrench to rotate.

[0008] As a further improvement of an embodiment of the present invention, the second wrench is a hexagonal wrench, the sleeve hole is adapted to the hexagonal wrench structure, and one end of the second wrench is inserted into and clamped in the sleeve hole.

[0009] As a further improvement of an embodiment of the present invention, the wrench handle, the lever arm portion and the wrench portion are integrally formed.

[0010] As a further improvement of an embodiment of the present utility model, the force arm portion and the wrench portion are distributed on the same side of the wrench handle.

[0011] As a further improvement of an embodiment of the present invention, the force arm portion and the wrench portion are distributed on both sides of the wrench handle.

[0012] As a further improvement of an embodiment of the present invention, the force arm portion and the wrench handle are arranged at a right angle, and the wrench portion and the wrench handle are arranged at a right angle.

[0013] The above technical solution has the following beneficial effects: by placing the first wrench in a narrow space with one end of the wrench clamped on the nut and the other end connected to the second wrench, the operator can apply force on the second wrench in a spacious place, thereby quickly tightening or loosening the nut in the narrow space, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0016] Figure 1 This is a schematic diagram of the installation of an existing mid-mounted motor on a vehicle frame.

[0017] Figure 2 This is a structural diagram of the installation tool provided by the utility model in use status.

[0018] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle.

[0019] Figure 4 This is a schematic diagram of the assembly structure of the first wrench and the second wrench provided by the utility model.

[0020] Figure 5 This is a three-dimensional schematic diagram of the first wrench provided by the utility model.

[0021] In the picture:

[0022] 1', 1-frame;

[0023] 2', 2-mid-mounted motor;

[0024] 3', 3-adjusting mechanism; 31-nut;

[0025] 4-first wrench; 41-wrench handle; 42-wrench portion; 43-arm portion; 44-hole;

[0026] 5- Second wrench. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention. Example

[0030] See also Figure 2-Figure 5 As shown, a narrow-gauge installation tool is designed to solve the problem of inconvenience in disassembling and installing the adjustment nut after the mid-mounted motor is installed on the power-assisted bicycle. The tool consists of a first wrench 4 and a second wrench 5.

[0031] The first wrench 4 includes a handle 41, with a lever portion 43 and a wrench portion 42 at either end. The wrench portion 42 is provided with a bayonet adapted to the nut profile, securely securing the adjustment nut. The lever portion 43 is provided with a sleeve hole 44, providing a key connection point for subsequent engagement.

[0032] One end of the second wrench 5 can be inserted into the sleeve hole 44. When the second wrench 5 is operated, it can drive the first wrench 4 to rotate. In this way, even in cramped spaces such as where the mid-mounted motor adjustment mechanism is close to the housing and the adjustment nut is in a narrow gap, where conventional wrenches are difficult to use, this narrow-gauge installation tool can be flexibly operated to conveniently complete the disassembly and installation of the adjustment nut, effectively improving the efficiency of mid-mounted motor commissioning and subsequent maintenance.

[0033] In this embodiment, the first wrench 4 utilizes an integrally molded handle 41, lever arm 43, and wrench portion 42. This not only ensures the overall structural stability but also enhances durability. The lever arm 43 and wrench portion 42 are located on the same side of the handle 41. This layout allows for more convenient application of force to disassemble and assemble the nut. Furthermore, this structure allows the first wrench 4 to be manufactured directly on a machine tool, simplifying the manufacturing process.

[0034] Of course, it should be noted that the positions of the lever portion 43 and the wrench portion 42 are not fixed, for example, they can also be distributed on both sides of the wrench handle 41. Different distribution methods can be flexibly selected according to specific usage scenarios and needs, further enhancing the applicability of the wrench under different working conditions.

[0035] In this embodiment, the force arm portion 43 of the first wrench 4 is arranged at a right angle to the wrench handle 41. This layout allows the lever principle to be used more effectively during force application, allowing the user to achieve a larger torque output with less force, making it easier to disassemble and assemble nuts in inconvenient locations such as narrow gaps.

[0036] Likewise, the wrench portion 42 and the wrench handle 41 are also arranged at right angles, thereby ensuring the stability and accuracy of the wrench portion when clamping the nut.

[0037] At the same time, the second wrench 5 is designed as an internal hexagonal wrench, and the sleeve hole 44 has a corresponding internal hexagonal structure. In actual operation, the operator can easily and accurately insert one end of the second wrench 5 into the sleeve hole 44 and firmly engage it. Then, by operating the second wrench 5, the first wrench 4 is rotated, achieving efficient and convenient nut removal and installation.

[0038] like Figure 2 、 3 As shown, when the position of the central motor 2 on the vehicle frame 1 needs to be adjusted, the first wrench 4 is first moved to the side of the adjustment mechanism 3 and the bayonet on the first wrench 4 is aligned with the nut 31 on the adjustment mechanism so that the two are locked together. Then, one end of the second wrench 5 is inserted into the sleeve hole 44 to secure it. The operator can apply force to the second wrench 5 in a spacious space to quickly tighten or loosen the nut in a narrow space, thereby improving work efficiency.

[0039] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A narrow-pitch installation tool, characterized in that: It consists of a first wrench and a second wrench. The first wrench includes a wrench handle. A force arm portion and a wrench portion are respectively provided at both ends of the wrench handle. The wrench portion is provided with a bayonet adapted to the nut profile. The force arm portion is provided with a sleeve hole. One end of the second wrench can be inserted into the sleeve hole and drive the first wrench to rotate.

2. The narrow-gap installation tool according to claim 1, wherein: The second wrench is a hexagonal wrench, the sleeve hole is adapted to the hexagonal wrench structure, and one end of the second wrench is inserted into and clamped in the sleeve hole.

3. The narrow-gap installation tool according to claim 1, wherein: The wrench handle, the lever arm portion and the wrench portion are integrally formed.

4. The narrow-gap installation tool according to claim 3, characterized in that: The force arm portion and the wrench portion are distributed on the same side of the wrench handle.

5. The narrow-gap installation tool according to claim 3, characterized in that: The force arm portion and the wrench portion are distributed on both sides of the wrench handle.

6. The narrow-gap installation tool according to claim 4 or 5, characterized in that: The force arm portion and the wrench handle are arranged at a right angle, and the wrench portion and the wrench handle are arranged at a right angle.

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