Search

US-12617065-B1 - Multifunctional electric tool with the function of easy head replacement

US12617065B1US 12617065 B1US12617065 B1US 12617065B1US-12617065-B1

Abstract

The present application relates to the technical field of electric tools, and specifically discloses a multifunctional electric tool with the function of easy head replacement, comprising at least one tool head, characterized in that it also includes a control mechanism, a power mechanism, an upper connecting head, a quick-connect and quick-disconnect mechanism and a shell, which can realize quick disassembly and quick installation, realize quick replacement of the tool head, and is more convenient to use.

Inventors

  • Donghua Chen

Assignees

  • Donghua Chen

Dates

Publication Date
20260505
Application Date
20250304

Claims (8)

  1. 1 . A multifunctional electric tool with the function of easy head replacement, comprising at least one tool head, a control mechanism, a power mechanism, an upper connecting head, a quick-connect and quick-disconnect mechanism, and a shell; wherein the tool head is mounted on the upper connecting head in a detachable manner, a limit plate is provided on the outer wall of the lower end of the upper connecting head, and a connecting groove is symmetrically provided on the inner wall of the lower end of the upper connecting head; wherein the quick-connect and quick-release mechanism is arranged on the upper inner part of the shell, and the front and rear ends of the inner wall of the upper end of the shell are provided with inclined guide plates, and the guide plates at the front and rear ends of the shell are symmetrical about the midpoint of the shell end; wherein the guide grooves are provided on both sides of the lower end of the tool head, and the tool head slides with the corresponding guide plates through the guide grooves, and the upper connecting head is connected and matched with the connecting groove, the limit plate and the quick-connect and quick-release mechanism to achieve quick release and quick connection; wherein the power mechanism is arranged in the shell, and the control mechanism is arranged in the shell; wherein the quick-connect and quick-release mechanism includes a limit adjustment ring, an external connecting tube and a spring, an unlocking button is provided on the outer side of one end of the limit adjustment ring, a first hole is provided on the outer shell at a position corresponding to the unlocking button, the unlocking button extends from the first hole, a spring connecting part is provided on the outer side of the other end of the limit adjustment ring, the spring is sleeved on the spring connecting part, and the other end of the spring is against the inner wall of the outer shell, a limit part is provided on the inner side of one end of the limit adjustment ring provided with the spring connecting part, the limit part cooperates with the limit plate to limit and fix the upper connecting head, arc-shaped protrusions are symmetrically provided on the external connecting tube, the external connecting tube is arranged in the limit adjustment ring, the lower end of the upper connecting head is sleeved on the external connecting tube, and the arc-shaped protrusion cooperates with the connecting groove; wherein the lower end of the outer connecting tube is symmetrically provided with a connecting plug board, and the inner wall of the outer shell is symmetrically provided with a installation groove; and the outer connecting tube is installed in the outer shell through the cooperation of the connecting plug board and the installation groove.
  2. 2 . The multifunctional electric tool with the function of easy head replacement of claim 1 , wherein the power mechanism comprising a battery, a motor and an internal connecting tube, wherein the battery is arranged at the lower inner part of the outer shell, the motor is arranged in the outer shell and is located above the battery, a plurality of limiting edges are evenly arranged on the outer periphery of the lower end of the internal connecting tube, a connecting hole is arranged at the lower end of the outer connecting tube, a plurality of limiting grooves are evenly arranged on the inner wall of the connecting hole, the internal connecting tube is arranged in the connecting hole, and the limiting edges are connected and matched with the corresponding limiting grooves, the rotating shaft of the motor extends from the internal connecting tube to the inner part of the outer connecting tube, and the lower end of the outer connecting tube abuts against the motor.
  3. 3 . The multifunctional electric tool with the function of easy head replacement of claim 2 , wherein the internal connecting tube is provided with a matching connector, the upper end of which extends into the tool head to drive the tool head to move.
  4. 4 . The multifunctional electric tool with the function of easy head replacement of claim 3 , wherein the upper end of the upper connecting head is provided with a positioning sleeve, the upper end of the upper connecting head is symmetrically supplied with a card slot, the positioning sleeve is symmetrically supplied with a card board, the card board and the card slot cooperate to position the positioning sleeve, the upper end of the connector passes through the positioning sleeve and is rotatably connected with the positioning sleeve.
  5. 5 . The multifunctional electric tool with the function of easy head replacement of claim 1 , wherein the control mechanism includes a control panel, a power switch, and an adjustment button; wherein the control panel is arranged in the shell; the power switch is welded on the control panel; the adjustment button is welded on the control panel; wherein a second hole is placed on the shell at a position corresponding to the power switch; the power switch extends from the second hole; wherein a notch is arranged on the shell at a position corresponding to the adjustment button; wherein the adjustment button extends from the notch.
  6. 6 . The multifunctional electric tool with the function of easy head replacement of claim 5 , wherein the control panel is provided with a charging socket at the lower end, the charging socket extends from the lower end of the shell, the lower end of the shell is provided with a lamp, the control panel is provided with a lamp switch, the shell is provided with a third hole at a position corresponding to the lamp switch, the lamp switch extends from the third hole.
  7. 7 . The multifunctional electric tool with the function of easy head replacement of claim 1 , wherein the upper end of the upper connecting head is symmetrically provided with slots, and the tool head can be connected to the upper connecting head through the slots and fixed by bolts.
  8. 8 . The multifunctional electric tool with the function of easy head replacement of claim 1 , wherein the lower end of the upper connecting head is symmetrically provided with a positioning block, and the inner wall of the limit adjustment ring is symmetrically provided with a positioning groove; wherein the positioning block and the positioning groove cooperate.

Description

FIELD OF THE APPLICATION The present application relates to the technical field of electric tools, and in particular to a multifunctional electric tool with the function of easy head replacement. BACKGROUND With the advancement of industrial technology, the variety of power tools available today is increasing, and their applications are becoming increasingly diverse. Typically, these power tools consist of a drive motor, a transmission device connected to the motor, and a tool head that is driven by the transmission device. Different types of tool heads serve various functions. For example, a saber saw cuts through materials using the reciprocating motion of a saw blade, an electric saw cuts wood by means of a rotating chain, and an electric drill is used for drilling holes. In the past, power tools for each specific function came with a complete set of tool heads, which not only wasted materials but also occupied a lot of space and made storage inconvenient. The patent with application number CN201811349487.9 in the prior art describes a multifunctional electric tool featuring a quick-change connector. This tool consists of a body and at least one tool head. The body is connected to the tool head through a quick-release connector assembly. Inside the body, there is at least one motor, which is linked to at least one output shaft. The end of the output shaft connects to the quick-change connector assembly. This assembly includes a connecting shaft that is detachably connected to the output shaft. Correspondingly, the tool head has a matching connecting hole designed for the connecting shaft. Additionally, the assembly features a fixed connector that is securely attached to the body, located around the perimeter of the connecting shaft. It also includes a movable connector: one end of this connector attaches to the tool head, while the other end connects detachably and securely to the fixed connector. Once the tool head is connected to the connecting hole, it is subsequently affixed to the fixed connector through the movable connector. Although this technology allows for the tool head to be connected via a movable connector, making disassembly and replacement easier, the connection method is relatively complex. Consequently, the process of connecting and replacing the tool head can be cumbersome, and achieving one-button disassembly and assembly is not possible. To address these issues, a multifunctional electric tool that facilitates easy head replacement has been designed. SUMMARY The technical problem to be solved by the present application is to overcome the defects of the above-mentioned technology and provide a multifunctional electric tool that is easy to replace the head. In order to solve the above technical problems, the technical solution provided by the present application is a multifunctional electric tool with an easy-to-replace head, comprising at least one tool head, a control mechanism, a power mechanism, an upper connecting head, a quick-connect and a quick-disconnect mechanism and a shell. The tool head is mounted on the upper connecting head in a detachable manner, a limit plate is provided on the outer wall of the lower end of the upper connecting head, and a connecting groove is symmetrically provided on the inner wall of the lower end of the upper connecting head. The quick-connect and quick-release mechanism is arranged on the upper inner part of the shell, and the front and rear ends of the inner wall of the upper end of the shell are provided with inclined guide plates, and the guide plates at the front and rear ends of the shell are symmetrical about the midpoint of the shell end. Guide grooves are provided on both sides of the lower end of the tool head, and the tool head slides with the corresponding guide plates through the guide grooves, and the upper connecting head is connected and matched with the connecting groove, the limit plate and the quick-connect and quick-release mechanism to achieve quick release and quick connection. The power mechanism is arranged in the shell, and the control mechanism is arranged in the shell. The quick-connect and quick-release mechanism includes a limit adjustment ring, an external connecting tube and a spring, an unlocking button is provided on the outer side of one end of the limit adjustment ring, a first hole is provided on the outer shell at a position corresponding to the unlocking button, the unlocking button extends from the first hole, a spring connecting part is provided on the outer side of the other end of the limit adjustment ring, the spring is sleeved on the spring connecting part, and the other end of the spring is against the inner wall of the outer shell, a limit part is provided on the inner side of one end of the limit adjustment ring provided with the spring connecting part, the limit part cooperates with the limit plate to limit and fix the upper connecting head, arc-shaped protrusions are symmetrically provided on the ex