Construction of portable hand tool interface adapter plate

Abstract

The utility model discloses portable hand tool interface adapter plate's structure, by motor body, work module, interface adapter plate module, star hole conversion sleeve and link block composition, this adapter plate module sets up between motor body and work module, and one end of star hole conversion sleeve is inserted in the output shaft of motor, and the other end of star hole conversion sleeve is connected in the input shaft of work module, link block is arranged in one side of fixed plate, and is combined with a work handle, and fixed plate is equipped with an assembly area, and is combined with link block through a plurality of jointing elements and is worn in the assembly area. Through above-mentioned modular design, the utility model can promote installation efficiency, maintenance convenience and system integration elasticity, has good versatility and expansibility.

Description

Technical Field

[0001] This utility model relates to a structural improvement of a portable hand tool, particularly a portable hand tool connection interface adapter plate that can be quickly installed and stably driven by motors of different specifications. It is combined with a conversion sleeve and a connecting block with a star-shaped slot structure to improve module integration efficiency and operational stability. It belongs to the field of assembly and connection technology of portable power tools. Background Technology

[0002] Portable hand tools often require a fixed connection and power transmission between the drive motor (DD direct drive motor) and the front-end working module (such as machining mechanism, cutting module, etc.).

[0003] Traditional structures often use custom-molded fixed bases or connecting plates, and their structural designs are usually made for specific motor specifications (i.e., electric motors or engines), lacking compatibility with different motor models. If the motor specification needs to be changed, the entire fixed base and transmission joint must often be redesigned and manufactured, resulting in a complex production process and increased development costs.

[0004] In addition, traditional motors and tool modules are often connected by welding or direct rigid connection of the shaft. When there is a slight eccentricity or tolerance error between the motor shaft and the input shaft of the working module, it will cause an imbalance when the tool is running, which will result in vibration and shaking, affecting the operational stability and service life.

[0005] To avoid the above problems, traditional construction methods usually require additional dynamic balancing correction procedures, which increases assembly steps and time costs.

[0006] Furthermore, the existing devices are inadequate in terms of wire management. The wires are often exposed on the motor body and handle, which not only looks messy but also poses a risk of being pulled and damaged or accidentally touched by the user, affecting the overall practicality and safety.

[0007] In summary, existing hand tools still have many areas for improvement in terms of motor interface integration, module compatibility, dynamic balance stability, and wire shielding design. Utility Model Content

[0008] The main purpose of this utility model is to address the shortcomings of the existing technology by providing a portable hand tool interface adapter board with a modular design that allows for quick assembly and positioning of different modules, stable power transmission between the motor and the working end, and also provides space for wire configuration and a guiding structure to improve safety and modular integration capabilities.

[0009] To achieve the above objectives, this utility model provides a connecting interface adapter plate module between the motor and the working module of a portable hand tool. This module includes a fixing plate and a guide plate, which are combined to achieve positioning and connection. It also includes a star-shaped hole conversion sleeve to correct any potential eccentricity between the motor output shaft and the working module input shaft, thereby stabilizing the overall torque transmission effect.

[0010] In addition, this invention can also adopt a single-board adapter structure, in which a connecting interface adapter plate is directly set between the motor and the working module, with corresponding joint areas at both ends, which can simplify the manufacturing process and reduce costs. Users can flexibly choose between a separate or single-board structure according to their actual needs.

[0011] Technical solution: The portable hand tool interface adapter board is composed of the following components:

[0012] A connector interface module is disposed between a motor and a working module. The connector interface module includes:

[0013] A fixing plate is provided with at least one fixing part, and at least one connecting element passes through the fixing part to fix the fixing plate to the motor;

[0014] A guide plate is disposed at one end of the working module and connected to the fixing plate by means of multiple positioning elements, so that the motor and the working module form a coaxial connection.

[0015] A star-shaped hole conversion sleeve, one end of which is inserted into the output shaft of the motor, and the other end of which is connected to the input shaft of the working module;

[0016] A connecting block is disposed on one side of the fixing plate and is connected to a working handle. The fixing plate has an assembly area, through which multiple connecting elements are inserted to connect with the connecting block.

[0017] By utilizing the interface adapter plate module, star-shaped hole conversion sleeve, and connecting block, rapid assembly, stable transmission, and modular application between different motors and tool modules can be achieved.

[0018] Furthermore, the corresponding mating surfaces of the fixing plate and the guide plate are provided with a concave-convex mating structure, which consists of a protrusion / groove structure provided on the fixing plate and a groove / protrusion structure provided on the guide plate.

[0019] Furthermore, the star-shaped bore adapter sleeve has a star-shaped bore inside, which has a symmetrical toothed structure. This is used to improve the shaft alignment capability and reduce rotational runout.

[0020] Furthermore, the star-shaped hole of the star-shaped hole conversion sleeve is provided with a guide angle at the entrance of the star-shaped hole.

[0021] Furthermore, the connecting block has an accommodating space inside, for the power supply line to be led out from the motor and embedded inside the connecting block, and guided to a working handle connected thereto.

[0022] Furthermore, at least one foot is provided below the connecting interface adapter board module.

[0023] Furthermore, the working module is one of a cutting module, a drilling module, and a polishing module.

[0024] The portable hand tool interface adapter board consists of the following components:

[0025] A connecting interface adapter plate is disposed between a motor and a working module. The connecting interface adapter plate is provided with at least one fixing part, and at least one connecting element passes through the fixing part to fix the connecting interface adapter plate to the motor.

[0026] A star-shaped hole conversion sleeve, one end of which is inserted into the output shaft of the motor, and the other end of which is connected to the input shaft of the working module;

[0027] A connecting block is disposed on one side of the connecting interface adapter plate and is connected to a working handle. The connecting interface adapter plate is provided with an assembly area, through which multiple connecting elements are inserted to connect with the connecting block.

[0028] By utilizing the interface adapter plate, star-shaped hole conversion sleeve, and connecting block, rapid assembly, stable transmission, and modular application between different motors and tool modules can be achieved.

[0029] Furthermore, the star-shaped bore adapter sleeve has a star-shaped bore inside, which has a symmetrical toothed structure. This is used to improve the shaft alignment capability and reduce rotational runout.

[0030] Furthermore, the star-shaped hole of the star-shaped hole conversion sleeve is provided with a guide angle at the entrance of the star-shaped hole.

[0031] Furthermore, the connecting block has an accommodating space inside, for the power supply line to be led out from the motor and embedded inside the connecting block, and guided to a working handle connected thereto.

[0032] Furthermore, at least one foot is provided below the connecting interface adapter plate.

[0033] Furthermore, the working module is one of a cutting module, a drilling module, and a polishing module.

[0034] Beneficial effects: The portable hand tool connector interface adapter plate disclosed in this utility model has the following beneficial effects:

[0035] 1. It can quickly adapt to motors of different specifications, improving the compatibility of tool modules and mass production efficiency;

[0036] 2. The star-shaped hole conversion sleeve has guiding and balancing characteristics, eliminating the need for traditional dynamic balancing and correction operations;

[0037] 3. The connector block design effectively conceals the wires, improving safety and overall aesthetic consistency;

[0038] 4. Modular design facilitates installation and maintenance, reducing production and maintenance costs. Attached Figure Description

[0039] Figure 1 This is a three-dimensional view of the overall assembly of the first embodiment disclosed in this utility model.

[0040] Figure 2 for Figure 1 A schematic diagram of the structure after the casing has been removed.

[0041] Figure 3 This is an exploded perspective view of the present invention.

[0042] Figure 4 This is a diagram showing the concave-convex fit structure between the fixing plate and the guide plate.

[0043] Figure 5 This is a perspective view of a connector interface adapter module with feet.

[0044] Figure 6 This is a cross-sectional view of the structure of this utility model.

[0045] Figure 7 This is a three-dimensional view of the star-shaped hole conversion sleeve.

[0046] Figure 8 This is a schematic diagram of the structure after the connecting block and the working handle are combined.

[0047] Figure 9 This is a structural diagram of the second embodiment disclosed in this utility model.

[0048] Figure 10 This is a schematic diagram illustrating the actual application of this utility model.

[0049] 10-Motor body

[0050] 20-Work Module

[0051] 30-Connection Interface Adapter Board Module

[0052] 31-Fixing Plate

[0053] 311-Fixing Part

[0054] 312-Protruding Structure

[0055] 313 - Assembly Area

[0056] 32-Guide Plate

[0057] 321-Positioning Element

[0058] 322-groove structure

[0059] 33-foot base

[0060] 40-Star-shaped hole conversion sleeve

[0061] 41-Star-shaped hole

[0062] 41a - Guiding Angle

[0063] 50-Connecting Block

[0064] 51-Accommodation Space

[0065] 511-Through-through-channel

[0066] 60-Work handle

[0067] 70-Wire

[0068] 30'-Connecting Interface Adapter Board

[0069] 301-First Integration Zone

[0070] 302 - Second Integration Zone Detailed Implementation

[0071] The specific embodiments of this utility model are described in detail below.

[0072] First Embodiment

[0073] Please refer to Figure 1 and Figure 2 A portable hand tool interface adapter plate is constructed from a motor body 10, a working module 20, an interface adapter plate module 30, a star-shaped hole conversion sleeve 40, and a connecting block 50, wherein:

[0074] like Figure 1 and Figure 2As shown, the interface adapter plate module 30 is disposed between the motor body 10 and the working module 20. The interface adapter plate module 30 enables structural integration and shaft alignment between the motor body 10 and the working module 20, thereby achieving a stable power transmission effect. Through the modular design of this utility model, the motor body 10 and the working module 20 can be quickly assembled. This modular design also makes assembly and disassembly faster, improving overall efficiency and ease of replacement.

[0075] Furthermore, the working module 20 is a cutting module. In another embodiment, the working module 20 is a drilling module. In yet another embodiment, the working module 20 is a polishing module.

[0076] like Figure 3 and Figure 4 As shown, the interface adapter plate module 30 includes a fixing plate 31 and a guide plate 32. The fixing plate 31 has at least one fixing part 311, and at least one connecting element (not shown) passes through the fixing part 311 to fix the fixing plate 31 to the motor body 10. The guide plate 32 is disposed at one end of the working module 20 and is connected to the fixing plate 31 by a plurality of positioning elements 321, so that the motor body 10 and the working module 20 form a coaxial connection state, ensuring that the power output direction is consistent, thereby improving the stability of the overall transmission.

[0077] like Figure 4 As shown, to ensure precise positioning between the fixing plate 31 and the guide plate 32, and to achieve axial alignment between the motor body 10 and the working module 20, the surfaces of the fixing plate 31 and the guide plate 32 that are correspondingly engaged are respectively provided with a protruding structure 312 and a groove structure 322, which fit together. The protruding structure 312 can be accurately embedded in the groove structure 322, automatically guiding the relative position of the fixing plate 31 and the guide plate 32 during assembly, effectively improving the accuracy of the coaxial connection and avoiding rotational wobble or assembly errors. In another embodiment, it is largely the same as the first embodiment, except that the groove structure is provided on the fixing plate and the protruding structure is provided on the guide plate, which fit together.

[0078] like Figure 5 As shown, the bottom of the connecting interface adapter plate module 30 is provided with multiple feet 33, which are respectively located at the lower edges of the fixing plate 31 and the guide plate 32. These feet 33 support the motor body 10 and the working module 20, enabling the entire device to stand stably upright on the working surface. This effectively prevents accidental contact or falls due to equipment tipping, and improves safety and stability during use.

[0079] like Figure 6 and Figure 7As shown, the star-shaped hole conversion sleeve 40 is used to connect the output shaft 11 of the motor body 10 and the input shaft 21 of the working module 20. One end of the star-shaped hole conversion sleeve 40 is inserted into the output shaft 11 of the motor body 10, and the other end of the star-shaped hole conversion sleeve 40 is connected to the input shaft 21 of the working module 20. The conversion sleeve 40 has a star-shaped hole 41 inside, which is formed by multiple symmetrically distributed grooves to provide excellent shaft centering effect, thereby improving transmission stability and reducing rotational runout.

[0080] To optimize assembly efficiency and ease of operation, a guide angle 41a is provided at the entrance of the star-shaped hole 41, allowing users to directly push the star-shaped hole conversion sleeve 40 into the output shaft 11 without precise alignment, thus quickly completing the connection. The cooperation between the guide angle 41a and the star-shaped hole 41 not only simplifies the installation process but also improves the installation stability and reliability of the module. The star-shaped hole conversion sleeve 40 has an internal star-shaped hole 41 with a symmetrical toothed structure, which can precisely engage with the output shaft of the motor body 10 and the input shaft of the working module 20. This symmetrical toothed structure effectively improves the torque transmission efficiency between the two shafts and ensures the stability of the rotational power output, thereby reducing sway and transmission losses during operation.

[0081] like Figures 1 to 3 and Figure 8 As shown, the connecting block 50 is disposed on one side of the connecting interface adapter plate module 30. The fixing plate 31 has an assembly area 313, through which multiple connecting elements 314 are inserted for engaging with the connecting block 50 and connecting to a working handle 60. The connecting block 50 has an internal accommodating space 51 for providing the configuration and embedding of wires 70. The wires 70 can connect the electrical control system or sensing elements between the motor body 10 and the working module 20 to achieve signal transmission and power supply functions.

[0082] The accommodating space 51 has a through-hole 511, which allows the wire 70 to extend from the connecting block 50 to the inside of the working handle 60 or other module sections, which facilitates circuit integration and wiring organization, thereby improving the overall modular integration capability and appearance simplicity of the tool.

[0083] Furthermore, by combining the connecting block 50 with the working handle 60, the corresponding handle type can be selected according to different application scenarios, which improves the flexibility of operation and the convenience of users, and strengthens the application advantages of modular design.

[0084] Second Embodiment

[0085] like Figure 9As shown, this utility model can also adopt another structural form to constitute the second embodiment. In this embodiment, the connecting interface adapter plate module is a single-structure connecting interface adapter plate 30', which is disposed between the motor body 10 and the working module 20. Its two ends are respectively provided with a first coupling area 301 and a second coupling area 302, so that the motor body 10 and the working module 20 can be directly fixed to the connecting interface adapter plate 30' by coupling elements.

[0086] Compared to the modular structure composed of the fixing plate 31 and the guide plate 32 in the first embodiment, the second embodiment adopts an integrally formed connecting interface adapter plate 30', which simplifies the overall structural design and effectively reduces the manufacturing and assembly costs of parts.

[0087] In summary, this utility model can flexibly choose to adopt a separate design of the guiding and positioning structure (first embodiment) or a single-board structure as described in this embodiment to simplify the manufacturing process, based on actual application needs and cost considerations, so as to balance the convenience and economy of module integration and enhance the practical value of portable hand tools.

[0088] like Figure 10 The diagram shown illustrates the practical application of this invention. The motor body 10 is connected to the working module 20 via a connecting interface adapter plate module 30 (or connecting interface adapter plate 30' (not shown in the figure)) to form a complete assembly structure for a portable hand tool. Through the modular design of this invention, users can quickly replace different models of the motor body 10 or the working module 20 with different functions (such as a cutting module, drilling module, polishing module, etc.) according to their operational needs, thus achieving the flexibility of a single tool architecture corresponding to multiple operational functions.

[0089] Furthermore, the design of the star-shaped adapter sleeve 40 and the connecting block 50 not only improves the coaxiality and transmission stability of the input / output shafts, but also allows for the integration of wiring for the wires 70 through the accommodating space 51, extending to the work handle 60 to accommodate different electronic control components and operating interfaces. Combined with the feet 33 located at the bottom of the adapter module, this ensures the tool remains stable and upright during temporary placement, preventing tipping or accidental contact that could damage equipment and pose safety risks, thus enhancing overall safety and ease of operation.

[0090] As can be seen from the above description, the usage and advantages of this utility model are as follows:

[0091] 1. The interface adapter board module 30 has a modular hole design, which can be used for motor body 10 and working module 20 of different sizes, effectively achieving quick replacement and assembly, and improving the system integration flexibility and multi-adaptability.

[0092] 2. The star-shaped hole conversion sleeve 40 is provided with a guide angle 41a and a polygonal groove structure 322, which can accurately fit the output shaft of the motor body 10 and the input shaft of the working module 20. It has the function of correcting eccentricity and stabilizing the shaft center, effectively reducing rotational wobble, improving transmission stability and assembly efficiency.

[0093] 3. The connecting block 50 has an accommodating space 51 and a through hole 511 inside, which can be used as a channel for placing the wire 70 and connected to the inside of the working handle 60, so that the wire 70 can be hidden inside, avoiding exposure, wire tangling, or interference with operation, improving safety and appearance.

[0094] 4. All components (such as fixing plate 31, guide plate 32, connecting block 50, star hole conversion sleeve 40, etc.) adopt modular design, can be disassembled and replaced independently, the assembly process is simple, maintenance is convenient, and it is suitable for modular integration applications of various hand tool platforms.

[0095] 5. The motor body 10 can be of different external size or power specifications. Installation can be quickly completed by simply adjusting the joint area through the connecting interface adapter plate module 30 or the connecting interface adapter plate 30' of the second embodiment.

[0096] The embodiments of this utility model have been described in detail above. However, this utility model is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of this utility model.

Claims

1. The structure of a portable hand tool interface adapter plate, characterized in that, It consists of the following components: A connector interface module is disposed between a motor and a working module. The connector interface module includes: A fixing plate is provided with at least one fixing part, and at least one connecting element passes through the fixing part to fix the fixing plate to the motor; A guide plate is disposed at one end of the working module and connected to the fixing plate by means of multiple positioning elements, so that the motor and the working module form a coaxial connection. A star-shaped hole conversion sleeve, one end of which is inserted into the output shaft of the motor, and the other end of which is connected to the input shaft of the working module; A connecting block is disposed on one side of the fixing plate and is connected to a working handle. The fixing plate has an assembly area through which multiple connecting elements are inserted to connect with the connecting block.

2. The structure of the portable hand tool interface adapter plate as described in claim 1, characterized in that, The corresponding mating surfaces of the fixing plate and the guide plate are provided with a concave-convex mating structure, which consists of a protrusion / groove structure provided on the fixing plate and a groove / protrusion structure provided on the guide plate.

3. The structure of the portable hand tool interface adapter plate as described in claim 1, characterized in that, The star-shaped hole conversion sleeve has a star-shaped hole inside, and the star-shaped hole has a symmetrical toothed structure.

4. The structure of the portable hand tool interface adapter plate as described in claim 3, characterized in that, The star-shaped hole of the star-shaped hole conversion sleeve is provided with a guide angle at the entrance of the star-shaped hole.

5. The structure of the portable hand tool interface adapter plate as described in claim 1, characterized in that, The connecting block has an internal accommodating space for the power supply line, after being led out from the motor, to be embedded inside the connecting block and guided to a connected working handle, and / or The connector interface adapter board module has at least one foot on its lower side.

6. The structure of a portable hand tool interface adapter plate, characterized in that, It consists of the following components: A connecting interface adapter plate is disposed between a motor and a working module. The connecting interface adapter plate is provided with at least one fixing part, and at least one connecting element passes through the fixing part to fix the connecting interface adapter plate to the motor. A star-shaped hole conversion sleeve, one end of which is inserted into the output shaft of the motor, and the other end of which is connected to the input shaft of the working module; A connecting block is disposed on one side of the connecting interface adapter plate and is combined with a working handle. The connecting interface adapter plate is provided with an assembly area, through which multiple connecting elements are inserted to combine with the connecting block.

7. The structure of the portable hand tool interface adapter plate as described in claim 6, characterized in that, The star-shaped hole conversion sleeve has a star-shaped hole inside, and the star-shaped hole has a symmetrical toothed structure.

8. The structure of the portable hand tool interface adapter plate as described in claim 7, characterized in that, The star-shaped hole of the star-shaped hole conversion sleeve is provided with a guide angle at the entrance of the star-shaped hole.

9. The structure of the portable hand tool interface adapter plate as described in claim 6, characterized in that, The connecting block has an internal accommodating space for the power supply line to be led out from the motor and embedded inside the connecting block, and guided to a working handle connected thereto.

10. The structure of the portable hand tool interface adapter plate as described in claim 6, characterized in that, The connector adapter plate is provided with at least one foot.

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