Intelligent electric hammer

Abstract

The utility model relates to the technical field of electric tools, and discloses an intelligent electric hammer which comprises a machine body, a front impact section on the front portion of the machine body and a rear handle section at the rear end of the machine body, a switch is arranged on the rear handle section, and a reverse-twist automatic-stop and pulse punching function plate and function buttons are installed on the lower portion of the rear handle section. A brushless motor controller and a brushless motor are arranged in a motor shell of the lower section of the machine body, a damping device is arranged between the front impact section and the rear handle section, and the damping device comprises a damping connecting rod and a damping cover. The device is additionally provided with an anti-twist automatic stop function, anti-twist is generated when the device is used for hitting a reinforcing steel bar or is clamped, the controller receives an angle change signal of the gyroscope, the chip sends an instruction, the MOS switches off the machine, the machine can be stopped in time, the safety of the machine is improved, an operator is prevented from being sprained, and the personal safety is guaranteed. The device is provided with a damping device, damping connecting rods are arranged at the top of the device, impact of stress on the machine body is reduced, vibration of the device in use is reduced, and the service life of the device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of electric tools, in particular to an intelligent electric hammer. Background Art

[0002] In daily operation, electric hammers are generally used to drill holes in hard materials such as concrete, bricks, and stones. Now they are also mostly used to drill holes in materials such as tiles. Generally, when using electric hammers, if the drilling encounters a hard material, the electric hammer is easy to rotate, causing the operator to be easily sprained. Safety performance needs to be improved.

[0003] The patent application with publication number CN116476008A discloses an electric hammer with an anti-accidental injury safety device, including an electric hammer and functional parts. The electric hammer is equipped with a brushless motor, a transmission component, an impact component, a rotating component and a shock-absorbing component. A clamping component and an operating component are respectively provided at the front and rear ends of the electric hammer. The shock-absorbing component has a primary anti-torsion system, the operating component is provided with a secondary anti-torsion system, and the electric hammer is provided with an angular velocity sensor as a three-level anti-torsion system. The working axes of the clamping component, the functional parts and the impact sleeve and the rotation center of the operating component are located on the same axis, and the center of gravity of the electric hammer coincides with the axis, thereby realizing protection for the human body in a twisted state after the functional parts of the electric hammer are locked, with higher safety performance. The triple anti-torsion system can achieve the goal of avoiding the harm to the body caused by the twisting of the electric hammer in different situations.

[0004] The prior art device realizes the protection of the human body in the reverse torsion state of the electric hammer by the cooperation of multiple transmission components. The structure is complicated and component failure is prone to occur, which affects the use of the device.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide an intelligent electric hammer, which generates reverse twisting when the device hits a steel bar or gets stuck. The controller receives the angle change signal of the gyroscope, the chip sends a command, and the MOS shuts down the machine, which can stop in time, greatly increasing the safety of the machine and avoiding sprains of operators.

[0007] The technical solution adopted by the utility model is:

[0008] An intelligent electric hammer comprises a body, a front impact section at the front of the body, and a rear handle at the rear end, wherein a switch is arranged on the rear handle, and a reverse torque automatic stop and pulse punching function board and function button are installed at the lower part, a brushless motor controller and a brushless motor are arranged in a motor housing at the lower section of the body, a shock absorbing device is arranged between the front impact section and the upper section of the rear handle, and the shock absorbing device comprises a shock absorbing connecting rod and a shock absorbing cover.

[0009] By adopting the above structure, the device adds an anti-twist self-stop function. When the device hits a hard object or a stuck column, it can stop in time, thereby improving safety and avoiding sprains of operators. A shock absorbing device is provided to reduce the impact of the force on the machine body.

[0010] Preferably, the shock absorbing device includes a shock absorbing connecting rod connecting the front impact section and the upper part of the rear handlebar, and a shock absorbing cover covered on the shock absorbing connecting rod, and both ends of the shock absorbing connecting rod are rings, and the rings are connected and fixed by a connecting rod.

[0011] By adopting the above structure, when the device is in use, the shock absorbing device can reduce the impact of the force on the body, reduce the vibration of the device when in use, and extend the service life of the device.

[0012] Preferably, the collar is an annular waist hole, which is sleeved on the casing column inside the body.

[0013] By adopting the above structure and the annular waist hole, a moving space for the casing column is reserved, thereby improving the use effect of the shock absorbing device.

[0014] Preferably, a rubber ring is arranged between the collar and the casing column, and the rubber ring is sleeved on the casing column.

[0015] By adopting the above structure and using the rubber ring, the friction damage of the device can be reduced.

[0016] Preferably, there is a gap between the front impact section of the machine body and the upper part of the rear handlebar, and the shock-absorbing cover is installed in the gap, with both ends connected to the front impact section and the rear handlebar.

[0017] By adopting the above structure and arranging the shock-absorbing cover, the vibration of the device during use can be better reduced.

[0018] Preferably, the MCU main control chip, the anti-torsion automatic stop control chip, and the pulse punching control circuit are controlled in the body through function buttons, anti-torsion automatic stop and pulse punching function boards. The anti-torsion automatic stop control chip is a U4SC7122 control chip. Two capacitors are connected between VDDIO and VDD on the chip, and a ground is set between the two capacitors. SDA, SCL and CS are connected to resistors respectively, and the two pins of SDA and SCL are respectively connected to the corresponding pins on the MCU main control chip.

[0019] By adopting the above structure, the device adopts a gyroscope solution for reverse torsion self-stop. Through the above control chip, reverse torsion is generated when the device hits a steel bar or gets stuck. At this time, the controller receives the gyroscope angle change signal, the chip sends a command, and the MOS shuts down the machine, which greatly increases the safety of the machine and ensures personal safety.

[0020] Preferably, the pulse punching control circuit includes an interface J1, pin 2 of interface J1 is respectively connected to R11 of 10K and R8 of 100K, R11 is connected to SPEED on the MCU main control chip, R11 is connected to the capacitor of the MCU main control chip, the capacitor is connected to R8 and grounded, pin 3 and pin 4 are respectively connected to R6 of 200R and R9 of 10K, R6 and R9 are connected to the power supply, pin 4 is connected to DIRCTION on the MCU main control chip through R10 of 10K at the front end of R9, pin 8 is connected to the transistor through R56 of 1K, the transistor is connected to the LED on the MCU main control chip through R35 of 2K, and the transistor is grounded, R35 and the grounded front end are connected to R36 of 10K.

[0021] By adopting the above structure, a pulse signal is sent out through the MCU main control chip, and the controller realizes pulse mode operation, thereby reducing the impact force and ensuring that the holes in the tiles will not crack.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The utility model device adds a reverse-twist self-stop function. When the device hits a steel bar or gets stuck, reverse twisting occurs. The controller receives the gyroscope angle change signal, the chip sends a command, and the MOS shuts down the machine, which can stop in time, greatly increasing the safety of the machine, avoiding sprains of operators, and ensuring personal safety.

[0024] 2. The utility model device is provided with a shock absorbing device. By arranging a shock absorbing connecting rod on the top of the device, the impact of the force on the body is reduced, the vibration of the device when in use is reduced, and the service life of the device can be extended.

[0025] 3. The device of the utility model is provided with a pulse punching control circuit. When in use, the working mode is switched to reduce the impact force, and the holes in the tiles are ensured not to crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the shock absorbing device of the utility model;

[0028] Figure 3 This is the circuit schematic diagram of the MCU main control chip of the utility model;

[0029] Figure 4 This is the circuit schematic diagram of the anti-torque automatic stop control chip of the utility model;

[0030] Figure 5 The figure is a circuit schematic diagram of the pulse punching control circuit of the utility model.

[0031] Among them: 1. Machine body; 2. Front impact section; 3. Rear handle; 4. Shock-absorbing connecting rod; 5. Shock-absorbing cover; 6. Casing column; 7. Rubber ring; 8. Anti-torsion automatic stop and pulse punching function board; 9. Brushless motor controller; 10. Motor housing; 11. Brushless motor; 12. Switch; 13. Function button; 14. Ring; 15. Connecting rod. DETAILED DESCRIPTION

[0032] like Figure 1-3 As shown, an intelligent electric hammer comprises a body 1 and a front impact section 2 at the front of the body 1, a rear handle 3 at the rear end, a switch 12 is arranged on the rear handle 3, a reverse torque self-stop and pulse punching function board 8 and a function button 13 are installed at the lower part, a brushless motor controller 9 and a brushless motor 11 are arranged in the motor housing 10 at the lower part of the body 1, a shock absorbing device is arranged between the front impact section 2 and the upper part of the rear handle 3, and the shock absorbing device comprises a shock absorbing connecting rod 4 and a shock absorbing cover 5. The device adds a reverse torque self-stop function, and reverse torque is generated when the device is used to hit a steel bar or is stuck, the controller receives the gyroscope angle change signal, the chip sends a command, and the MOS shuts down the machine, which can stop in time, greatly increasing the safety of the machine, avoiding sprains of operators, and ensuring personal safety.

[0033] The shock absorbing device includes a shock absorbing connecting rod 4 connecting the front impact section 2 and the upper part of the rear handle 3, and a shock absorbing cover 5 covered on the shock absorbing connecting rod 4. The two ends of the shock absorbing connecting rod 4 are sleeves 14, and the sleeves 14 are connected and fixed by a connecting rod 15. The sleeve 14 is an annular waist hole, which is sleeved on the casing column 6 inside the body 1. A rubber ring 7 is arranged between the sleeve 14 and the casing column 6, and the rubber ring 7 is sleeved on the casing column 6. The device is provided with a shock absorbing device, and by arranging the shock absorbing connecting rod 4 on the top of the device, the impact of the force on the body 1 is reduced, and the vibration when the device is used is reduced, which can extend the service life of the device.

[0034] There is a gap between the front impact section 2 of the machine body 1 and the upper part of the rear handle section 3 , and the shock absorbing cover 5 is installed in the gap, and its two ends are connected to the front impact section 2 and the rear handle section 3 .

[0035] like Figure 4 , 5As shown, the body 1 controls the MCU main control chip, the anti-torsion automatic stop control chip, and the pulse punching control circuit through the function button 13, the anti-torsion automatic stop and the pulse punching function board 8. The anti-torsion automatic stop control chip is a U4SC7122 control chip. Two capacitors are connected between VDDIO and VDD on the chip. A ground is set between the two capacitors. SDA, SCL and CS are connected to resistors respectively, and the two pins SDA and SCL are respectively connected to the corresponding pins on the MCU main control chip. The pulse punching control circuit includes an interface J1, wherein pin 2 of the interface J1 is respectively connected to R11 of 10K and R8 of 100K, R11 is connected to SPEED on the MCU main control chip, R11 is connected to a capacitor on the MCU main control chip, the capacitor is connected to R8 and grounded, pins 3 and 4 are respectively connected to R6 of 200R and R9 of 10K, R6 and R9 are connected to a power supply, pin 4 is connected to DIRCTION on the MCU main control chip through R10 of 10K at the front end of R9, pin 8 is connected to a transistor through R56 of 1K, the transistor is connected to an LED on the MCU main control chip through R35 of 2K, and the transistor is grounded, and R35 and the grounded front end are connected to R36 of 10K.

[0036] When the device is used: the brushless motor controller 9 of the brushless motor 11 realizes functions such as motor driving, constant speed, and pulse mode punching. After adding a gyroscope, an anti-torsion self-stop function is added; the anti-torsion self-stop adopts a gyroscope solution, and the controller chip collects signals of the gyroscope at different angles, issues corresponding instructions, and performs corresponding response actions through the MOS on the main controller; a plastic panel is arranged above the switch 12 of the function operation circuit board of the electric hammer, and the switch button part is leaking. Using the elasticity of the plastic itself, a button label is arranged on the panel. When the operator uses it, the switch on the button label triggers the button on the plastic panel. The button part structure is a cantilever, and plastic can be used; when the device hits the steel bar or gets stuck, it will produce anti-torsion. At this time, the brushless motor controller 9 receives the gyroscope angle change signal, the chip issues an instruction, and the MOS shuts down the machine, which greatly increases the safety of the machine and ensures personal safety; when the device adopts the pulse mode for punching, the function button 13 is used in combination with the anti-torsion self-stop and pulse punching function board 8, and the control chip sends a pulse signal, and the brushless motor controller 9 realizes the pulse mode operation, reduces the impact force, and the hole on the tile is guaranteed not to crack.

[0037] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should be included in the protection scope determined by the claims of the present invention.

Claims

1. An intelligent electric hammer, comprising a body, a front impact section at the front of the body, and a rear handle at the rear, characterized in that: A switch is arranged on the rear handle, and a reverse-torsion automatic stop and pulse punching function panel and function button are installed at the lower part. A brushless motor controller and a brushless motor are arranged in the motor housing of the lower section of the machine body. A shock absorbing device is arranged between the front impact section and the upper section of the rear handle, and the shock absorbing device includes a shock absorbing connecting rod and a shock absorbing cover.

2. The intelligent electric hammer according to claim 1, characterized in that: The shock absorbing device comprises a shock absorbing connecting rod connecting the front impact section and the upper part of the rear handle and a shock absorbing cover arranged on the shock absorbing connecting rod. Both ends of the shock absorbing connecting rod are sleeve rings, and the sleeve rings are connected and fixed by a connecting rod.

3. The intelligent electric hammer according to claim 2, characterized in that: The sleeve ring is an annular waist hole and is sleeved on the casing column inside the machine body.

4. The intelligent electric hammer according to claim 3, characterized in that: A rubber ring is arranged between the sleeve ring and the casing column, and the rubber ring is sleeved on the casing column.

5. The intelligent electric hammer according to claim 1, characterized in that: There is a gap between the front impact section of the machine body and the upper part of the rear handlebar, and the shock-absorbing cover is installed in the gap, and the two ends are connected with the front impact section and the rear handlebar.

6. The intelligent electric hammer according to claim 1, characterized in that: The MCU main control chip, the anti-torsion automatic stop control chip, and the pulse punching control circuit are controlled in the body through function buttons, anti-torsion automatic stop and pulse punching function boards. The anti-torsion automatic stop control chip is a U4SC7122 control chip. Two capacitors are connected between VDDIO and VDD on the chip, and a ground is set between the two capacitors. SDA, SCL and CS are connected to resistors respectively, and the two pins SDA and SCL are respectively connected to the corresponding pins on the MCU main control chip.

7. The intelligent electric hammer according to claim 6, characterized in that: The pulse punching control circuit includes an interface J1, wherein pin 2 of the interface J1 is respectively connected to R11 of 10K and R8 of 100K, R11 is connected to SPEED on the MCU main control chip, R11 is connected to a capacitor on the MCU main control chip, the capacitor is connected to R8 and grounded, pins 3 and 4 are respectively connected to R6 of 200R and R9 of 10K, R6 and R9 are connected to a power supply, pin 4 is connected to DIRCTION on the MCU main control chip through R10 of 10K at the front end of R9, pin 8 is connected to a transistor through R56 of 1K, the transistor is connected to an LED on the MCU main control chip through R35 of 2K, and the transistor is grounded, and R35 and the grounded front end are connected to R36 of 10K.

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