Universal self-locking connector

Abstract

The utility model relates to a general self-locking plug connector, belong to electric tool technical field. The general self-locking plug connector includes the left, right half shell of closing and fixedly connected, the left, right half shell has the cavity of containing and fixing standard power plug at least partially after closing respectively, and the elastic dog of the corresponding clamping groove of the electric tool power supply socket is inserted and held when plugging. After adopting the utility model, the left, right half shell of closing and fixedly connected contain and fix the standard power plug, when plugging the standard power plug and the electric tool power supply socket, with the elastic dog of the left, right half shell, the corresponding clamping groove of the electric tool power supply socket can be inserted and held, and the required anti -drop function is realized.

Description

Technical Field

[0001] This utility model relates to a universal self-locking connector, and more particularly to a universal self-locking connector for power tools, belonging to the field of power tool technology. Background Technology

[0002] Handheld AC power tools such as electric sanders require reliable connection to their power cables. To avoid disturbance to the electrical connection during operation and to maintain a reliable power supply, Chinese patent document application number 94103268.x discloses a power cable connector for electric equipment and tools. The plug connected to the power cable consists of two halves that are joined together. An elastic retaining wall is installed on the outside of the plug, and a screw secures them together in the middle. The plug is properly inserted into the socket by engaging the retaining groove on the plug.

[0003] The existing technology has limitations in its use, requiring the use of specially designed power cable connectors, and is not compatible with general power cable plugs. Utility Model Content

[0004] The purpose of this utility model is to address the limitations of the existing technology by proposing a universal self-locking connector that not only has a good anti-detachment effect but is also compatible with universal power cable plugs, thereby bringing more convenience to users.

[0005] To achieve the above objectives, the basic technical solution of this utility model's universal self-locking connector is as follows: It includes left and right half shells that are fixed together, each half shell having a cavity that at least partially contains a standard power plug after being fitted together, and elastic claws that are inserted into the corresponding slots of the power plug of the power tool when plugged in.

[0006] With this invention, the left and right halves of the combined shell enclose and fix the standard power plug. When the standard power plug is plugged into the power socket of the power tool, the elastic claws of the left and right halves can be inserted into the corresponding slots at the power socket of the power tool to achieve the required anti-dislodgement function.

[0007] A further improvement of this utility model is that the outer sides of the left and right half shells are respectively provided with elastic claws with barbs at the ends; when the plug end of the standard power plug is inserted into the power socket of the power tool, the elastic claws of the left and right half shells are respectively inserted into the slots on both sides of the power socket, and the barbs of the elastic claws are locked into the slot holes on the side walls of the corresponding slots.

[0008] A further improvement to this utility model is that the left and right halves of the shell each have a number of perforated protrusions that can be fixed together by means of fasteners.

[0009] The present invention is further improved in that: the left and right halves of the shell respectively have a slot and a hook that are interlocked and fixed together when they are engaged.

[0010] The present invention is further improved in that: one side of the left and right half shells respectively has a slot and a hook that are fastened together when they are engaged, and the other side respectively has a pin and a hinge pin that form a hinge when they are engaged. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a three-dimensional exploded structural diagram of Embodiment 1 of this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure after the left and right halves of the shell are joined and fixed in the embodiment.

[0014] Figure 3 yes Figure 1 A three-dimensional structural diagram of the embodiment where the left and right halves of the shell are joined together and the power cable is plugged into the power tool.

[0015] Figure 4 This is a three-dimensional exploded structural diagram of Embodiment 2 of this utility model.

[0016] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure after the left and right halves of the shell are joined and fixed in the embodiment.

[0017] Figure 6 This is a three-dimensional exploded structural diagram of Embodiment 3 of this utility model.

[0018] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure after the left and right halves of the shell are joined and fixed in the embodiment.

[0019] Figure 8 yes Figure 6 A cross-sectional view of the embodiment. Detailed Implementation Example 1

[0020] The basic structure of the universal self-locking connector for power tools in this embodiment is as follows: Figure 1 As shown, the standard power plug 1 has a plug end 1-1 that is adapted to the power socket 2-1 of the power tool 2, a lead end 1-4, a frustoconical body middle part 1-2 that tapers from the plug end toward the lead end, and a corrugated connecting section 1-3 between the body middle part 1-2 and the lead end 1-4.

[0021] The left half-shell 3 and the right half-shell 4 each have cavities that, when aligned, enclose the central part 1-2 of the standard power plug body and the corrugated connecting section 1-3. They also each have several through-hole protrusions 3-1 and 4-1 that can be fixed together by screws 5. The inner contour of the cavities matches the shape of the central part 1-2 and the corrugated connecting section 1-3. Therefore, when the left half-shell 3 and the right half-shell 4 are aligned, the standard power plug 1 can be reliably clamped and secured, leaving only the plug end 1-1 and the lead end 1-4 exposed (see...). Figure 2 ).

[0022] The outer sides of the left half-shell 3 and the right half-shell 4 respectively have elastic claws 3-2 and 4-2 with barbs 3-3 and 4-3 at their ends. When using a power tool, when the plug end 1-1 of the standard power plug 1 is inserted into the power socket 2-1 of the power tool 2, the elastic claws 3-2 and 4-2 of the left half-shell 3 and the right half-shell 4 are simultaneously inserted into the slots 2-2 on both sides of the power socket 2-1. Under the action of elastic deformation, the barbs 3-3 and 4-3 of the elastic claws 3-2 and 4-2 respectively engage with the corresponding slot holes 2-3 on the side wall of the slot 2-2 (see...). Figure 3 Therefore, it can effectively prevent the power plug from slipping off after being disturbed. When it is necessary to unplug the power plug, simply pinch the base of the elastic claws 3-2 and 4-2, and the barbs 3-3 and 4-3 will disengage from the card hole 2-3 on the side wall of the card slot 2-2, so that the power plug 1 can be easily pulled out from the power socket 2-1.

[0023] Therefore, by adopting this embodiment, the standard power plug 1 can be directly inserted into the power socket 2-1 of the power tool for power supply, or the left half shell 3 and the right half shell 4 can be joined together to clamp and fix the standard power plug 1 to achieve the required anti-disconnection connection, which is flexible and convenient. Example 2

[0024] The universal self-locking connector for power tools in this embodiment is as follows: Figure 4 As shown, the basic structure is the same as in Embodiment 1. The difference is that the left half-shell 3 and the right half-shell 4 each have several slots 3-1' and hooks 4-1' that can be interlocked and fixed together when they are engaged. This eliminates the need for additional fasteners such as screws 5, making assembly very convenient (see [link]). Figure 5 ). Example 3

[0025] The universal self-locking connector for power tools in this embodiment is as follows: Figure 6 As shown, the basic structure is the same as in Embodiment 1. The difference is that one side of the left half-shell 3 and the right half-shell 4 respectively has a slot 3-1' and a hook 4-1' that can be locked together when they are joined, while the other side has a pin 3-1" and a hinge pin 4-1" that can form a hinge connection structure when they are joined. Therefore, during assembly, they can be hinged first and then locked together, which is more convenient and reliable (see Figure 7 , Figure 8 ).

[0026] In addition to the embodiments described above, this utility model may have other implementations. For example, the slots of the power tool socket are not located on both sides, but are positioned at the top and bottom, with the barbed elastic claws of the left and right half-shells rotating 90° respectively; or, the left and right half-shells are joined not by screws, but by ultrasonic welding. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A universal self-locking connector, characterized in that: It includes left and right half shells that are fixed together, each half shell having a cavity that at least partially contains a standard power plug after being fitted together, and elastic claws that are inserted into the corresponding slots of the power plug of the power tool when plugged in.

2. The universal self-locking connector according to claim 1, characterized in that: The outer sides of the left and right halves of the shell each have elastic claws with barbs at the ends; when the plug end of the standard power plug is inserted into the power socket of the power tool, the elastic claws of the left and right halves of the shell are respectively inserted into the slots on both sides of the power socket, and the barbs of the elastic claws are locked into the slot holes on the side walls of the corresponding slots.

3. The universal self-locking connector according to claim 1 or 2, characterized in that: The left and right halves of the shell each have several perforated protrusions that can be fixed together by fasteners.

4. The universal self-locking connector according to claim 1 or 2, characterized in that: The left and right halves of the shell each have a slot and a hook that are locked together when they are aligned.

5. The universal self-locking connector according to claim 1 or 2, characterized in that: The left and right halves of the shell each have a slot and a hook on one side that are locked together when they are engaged, and a pin and a hinge pin on the other side that are hinged together when they are engaged.

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