Wall grooving tool
By designing a wall groove tool equipped with leakage protection circuit and removable blade, different line requirements and safety hazards are solved, and a highly adaptable, safe, reliable and efficient groove operation is achieved.
Patent Information
- Application Number
- CN202421283458.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When laying indoor circuit wiring, slotted tools are difficult to adapt to the width and depth requirements of different lines, and are prone to safety accidents due to sparks and leakage.
A wall groove tool is designed, including a machine body, a detachable blade and a water spray device. The machine body is equipped with a leakage protection circuit, the blade can be replaced according to demand, and the water spray device is used to reduce dust and heat.
The tool is highly adaptable, safe and reliable, significantly improves work efficiency, and effectively protects the safety and environment of the work site.
Smart Images
Figure CN222571256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electric tool, in particular to a wall grooving tool. Background Art
[0002] When laying indoor circuit wiring, for safety reasons, it is generally required to go hidden. That is, it is necessary to make grooves on the wall, and then bury the wire tubes, and the wires pass through the buried wire tubes. The grooving process is labor-intensive, time-consuming and labor-intensive. Because different lines have different requirements for the width and depth of the grooves, it is necessary to constantly replace the grooving tools. It is also easy to generate sparks due to the blade cutting the steel bars in the wall, or to generate a large amount of floating dust due to long-term operation. Furthermore, long-term high-intensity and high-vibration operations will also cause the internal connections of the cutting tools to loosen and cause leakage, further causing construction safety accidents. Therefore, this kind of construction site urgently needs a safe, reliable, adaptable, efficient and convenient grooving tool. Summary of the invention
[0003] In order to solve the above technical problems, the utility model provides a wall grooving tool, including a machine body, a detachable blade, and a water spraying device, characterized in that a power connection line is connected to the rear end of the machine body, an operating handle is provided on the machine body, and a blade mounting interface and a water spraying device are provided at the front end, the blade mounting interface is connected to the detachable blade, the blade mounting interface is connected to the motor inside the machine body, the motor is connected to the leakage protection circuit pre-set inside the machine body, and then connected to the power switch, and then connected to the external power supply through the power cord.
[0004] Furthermore, the leakage protection circuit includes a current transformer, a rectifier, an excitation release and a switch connected to the excitation release, and the above components are electrically connected, wherein the current transformer is used to detect leakage current, the rectifier is used to rectify the induced current formed in the transformer after the leakage current is detected into direct current and transmit it to the excitation release, the excitation release connection switch is used to cut off and connect the main power supply of the wall grooving tool, and the rectifier is a transistor rectifier.
[0005] Furthermore, a detachable transfer rod is installed outside the blade mounting interface arranged on the front end of the machine body, and the detachable transfer rod is a cylinder with an internal thread. A lower pressure plate and a gasket are installed between the blade mounting interface and the detachable transfer rod. The detachable blade is installed on the detachable transfer rod, and then the gasket is installed, and it is reinforced with a bolt with an external thread that is compatible with the internal thread of the detachable transfer rod.
[0006] Furthermore, the detachable blades can be assembled in multiple pieces, with each two blades being separated by a gasket.
[0007] Furthermore, the water spraying device includes a metal nozzle, a universal corrugated water pipe, a dripping switch valve and a water inlet pipe. The metal nozzle, the universal corrugated water pipe, the dripping switch valve and the water inlet pipe are connected at one time, wherein an atomizing baffle is arranged in the metal nozzle, and the dripping switch valve can adjust the water output of the metal nozzle.
[0008] The beneficial effects of the utility model are: strong adaptability, safety and reliability, and the ability to significantly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of the utility model
[0010] Figure 2 Leakage protection circuit diagram
[0011] Figure 3 A diagram of a mechanism for a detachable blade. DETAILED DESCRIPTION
[0012] The utility model is described in detail below in conjunction with the accompanying drawings.
[0013] like Figure 1 , 3 As shown, a wall slotting tool includes a machine body 1, a detachable blade 2, and a water spraying device 3. The tail end of the machine body 1 is connected to a power connection line, the machine body 1 is provided with an operating handle 1-1, and the front end is provided with a blade installation interface and a water spraying device 3. The blade installation interface is connected to the detachable blade 2, and the blade installation interface is connected to the motor inside the machine body 1. After the motor is connected to the leakage protection circuit pre-set inside the machine body, it is connected to the power switch, and then connected to the external power supply through the power line. Through the above structure, the utility model can adaptably replace the detachable blade 2 according to different requirements, such as different slotting depths and widths.
[0014] like Figure 2As shown, the leakage protection circuit includes a current transformer L, a rectifier UR, an excitation release J and a switch K1 connected to the excitation release, and the above components are electrically connected, wherein the rectifier UR is a transistor rectifier. In actual operation, when the main design switch K is turned on, the design circuit is energized. If the utility model has leakage due to aging or damage, the current transformer L can detect the current outside the design circuit, and rectify the current formed in the transformer due to the induced current into direct current through the rectifier UR, and excite the excitation release J through the connecting line. The coil in the excitation release J generates magnetic attraction because it receives the transmitted direct current, and the armature of the normally closed contact of the suction switch K1 disconnects K1 to achieve the effect of disconnecting the design circuit. Turn off the main switch K of the design circuit, when the leakage current disappears, the rectified direct current in the rectifier UR disappears, the coil in the excitation release J loses magnetic attraction, the armature in the switch K1 is reset, the contact is restored to the normally closed state, and the connection of the design circuit is further restored.
[0015] A detachable transfer rod is installed outside the blade mounting interface provided on the front end of the machine body 1. The detachable transfer rod is a cylinder with internal threads. A lower pressure plate and a gasket are installed between the blade mounting interface and the detachable transfer rod. The lower pressure plate here can be a bearing or other rotatable parts to ensure that there is no friction between the blade and the machine body and that the installation is firm. The detachable blade is mounted on the detachable transfer rod, and then the gasket is mounted, and it is reinforced with a bolt with an external thread that is compatible with the internal thread of the detachable transfer rod. Through the installation method of the detachable blade designed in this way, the blade can be packaged firmly, and the number of blades can be increased or decreased as needed to meet the needs of different scenarios. Because the blade mounting interface and the installation and connection of multiple blades are relatively simple, they are not described in detail here.
[0016] Similarly, the detachable blades can be set in multiple pieces, and each pair is separated by a gasket. A small gap is reserved between adjacent blades by the gasket, which can effectively rub the cut solid during operation, and the vibration generated during the operation of the equipment reduces the difficulty of cleaning the subsequent grooves.
[0017] In order to reduce the dust generated during operation and the overheating caused by the friction of the blade during long-term operation, the water spraying device includes a metal nozzle, a universal corrugated water pipe, a dripping switch valve and a water inlet pipe. The metal nozzle, the universal corrugated water pipe, the dripping switch valve and the water inlet pipe are connected at one time, wherein an atomizing baffle is provided in the metal nozzle, and the dripping switch valve can adjust the water output of the metal nozzle. The water spray mist or water flow can be adjusted according to different requirements, and its size can also be controlled, which can effectively meet the needs of the site while saving water.
[0018] During the actual construction work, there is no need to mark lines in advance. You only need to install the appropriate blade according to the needs of the site to start grooving. The addition of the leakage protection circuit not only protects the personal safety of the operator, but also avoids safety hazards to other equipment due to leakage. By starting the water spray device, the heat and dust generated by the operation can be effectively curbed, which not only increases the work efficiency, but also provides protection for the work site environment.
Claims
1. A wall grooving tool, comprising a machine body, a detachable blade, and a water spray device, characterized in that: A power connection line is connected to the rear end of the machine body, an operating handle is provided on the machine body, and a blade mounting interface and a water spray device are provided at the front end. The blade mounting interface is connected to a detachable blade, and the blade mounting interface is connected to a motor inside the machine body. After the motor is connected to a leakage protection circuit pre-set inside the machine body, the power switch is connected, and then the external power supply is connected through the power cord.
2. A wall grooving tool as claimed in claim 1, characterized in that: The leakage protection circuit includes a current transformer, a rectifier, an excitation release and a switch connected to the excitation release. The above components are electrically connected, wherein the current transformer is used to detect leakage current, the rectifier is used to rectify the induced current formed in the transformer after the leakage current is detected into direct current and transmit it to the excitation release, the excitation release connection switch is used to cut off and connect the main power supply of the wall grooving tool, and the rectifier is a transistor rectifier.
3. A wall grooving tool as claimed in claim 2, characterized in that: A detachable transfer rod is installed outside the blade mounting interface arranged on the front end of the machine body. The detachable transfer rod is cylindrical with an internal thread. A lower pressure plate and a gasket are installed between the blade mounting interface and the detachable transfer rod. The detachable blade is installed on the detachable transfer rod, and then the gasket is installed, and it is reinforced with a bolt with an external thread that is compatible with the internal thread of the detachable transfer rod.
4. A wall grooving tool as claimed in claim 3, characterized in that: The detachable blades can be assembled in multiple pieces, with each two blades separated by a gasket.
5. A wall grooving tool as claimed in any one of claims 1 to 4, characterized in that: The water spraying device includes a metal nozzle, a universal corrugated water pipe, a dripping switch valve and a water inlet pipe. The metal nozzle, the universal corrugated water pipe, the dripping switch valve and the water inlet pipe are connected at one time. An atomizing baffle is arranged in the metal nozzle, and the dripping switch valve can adjust the water output of the metal nozzle.