Electric tool

Abstract

The utility model relates to an electric tool which comprises a shell, a motor and a control module. The electric tool further comprises an angle detection module, the angle detection module is connected with the control module and is configured to collect the working angle of the electric tool, the control module is configured to set the angle perpendicular to the ground as a judgment benchmark, and when the offset between the working angle and the judgment benchmark changes, the angle detection module detects the working angle of the electric tool. The control module controls the rotating speed of the motor to keep stable. According to the utility model, the working angle is detected through the angle detection module, and the control module controls and adjusts the rotating speed of the motor to keep stable according to the offset of the working angle, so as to ensure that the glue output amount or the gas output amount is kept unchanged when working at different angles.

Description

Technical Field

[0001] The utility model relates to the field of electric tools, in particular to an electric tool with adjustable working angle. Background Art

[0002] Electric tools are widely used in industries such as building decoration, electronic appliances, and automotive parts. Compared with manual tools, electric tools have a high degree of automation and are relatively labor-saving. However, existing electric tools have some defects. For example, electric glue guns and electric dust removal guns, which can pump out fluids or gases, will affect the amount of fluid or gas pumped out per unit time. When gluing or dusting at a downward angle such as toward the ground, due to the effect of gravity, more glue or gas will be pumped out per unit time than at an upward angle, which can easily lead to inconsistent glue or gas output per unit time at different angles.

[0003] Please refer to Chinese utility model patent No. CN216678893U published on June 7, 2022, which discloses a multi-component glue precision extrusion device, which controls the speed of piston movement by controlling the rotation speed of the servo motor, thereby controlling the glue extrusion flow rate. By setting different rotation speeds for the servo motor, the amount of glue extruded in the same time is proportional to the rotation speed of the servo motor, thereby achieving flexible and variable proportions of glue extrusion and precise control of glue extrusion. However, this control method can only change the glue output as the motor speed changes, but cannot solve the problem of inconsistent glue output at different gluing angles. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a device that can detect the working angle through an angle detection module, and the control module controls and adjusts the speed of the motor to keep it stable according to the offset of the working angle, so as to ensure that the glue output or gas output remains unchanged when working at different angles.

[0005] The technical solution adopted by the utility model to solve the problems of the prior art is: an electric tool, comprising: a shell, a motor accommodated in the shell and a control module connected to the motor; the electric tool also includes an angle detection module, the angle detection module is connected to the control module and is configured to collect the working angle of the electric tool, the control module is configured to set the angle perpendicular to the ground as a judgment reference, when the offset between the working angle and the judgment reference changes, the control module controls the rotation speed of the motor to remain stable.

[0006] A further improved solution is: the electric tool further includes a working head and an output module, and the output module is connected to the working head and the motor respectively.

[0007] A further improvement is as follows: the working head is used to discharge the material required by the user, and the motor rotates to drive the output module to work, so that the material flows out from the working head.

[0008] A further improvement is that the angle detection module is a posture sensor, and the posture sensor senses the working angle of the working head of the electric tool.

[0009] A further improvement is that the range of the offset is set to be greater than or equal to 0 degrees and less than or equal to 180 degrees.

[0010] A further improvement is: when the offset is 0 degrees, the extension direction of the working head is perpendicular to the ground along a first direction, and the user can work on the workpiece placed on the ground.

[0011] A further improvement is that when the offset is 180 degrees, the extension direction of the working head is perpendicular to the ground along a second direction completely opposite to the first direction, and the user can work on the workpiece placed on the top.

[0012] A further improvement is as follows: when the offset is 90 degrees, the extension direction of the working head is parallel to the ground, and the control module controls the motor to rotate at a predetermined speed, wherein the predetermined speed is stored in the control module.

[0013] A further improved solution is: when the offset is at any angle between 0 degrees and 180 degrees, the control module controls the speed of the motor to automatically adjust to the predetermined speed.

[0014] A further improvement is that the electric tool is an electric glue gun or an electric dust removal gun.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the working angle is detected by the angle detection module, and the control module controls and adjusts the motor speed to keep it stable according to the offset of the working angle, so as to ensure that the glue output or gas output remains unchanged when working at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0017] Figure 1 This is a diagram of the first embodiment of the electric tool of the utility model;

[0018] Figure 2 A cross-sectional view of a first embodiment of the electric tool of the utility model;

[0019] Figure 3 This is a circuit diagram of the first embodiment of the electric tool of the utility model;

[0020] Power tool 100 Housing 1

[0021] Transmission module 2 Drive module 3

[0022] Control module 4 Angle detection module 5

[0023] Bracket 11 Output module 12

[0024] Main switch 13 Unlock switch 14

[0025] Speed ​​switch 15 Travel switch 16

[0026] Travel switch push rod 17 Spring 18 DETAILED DESCRIPTION

[0027] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] See also Figures 1 to 3 As shown, it is the whole machine diagram, cross-sectional view and circuit principle of the first embodiment of the electric tool of the utility model. In this embodiment, the electric tool is preferably an electric glue gun. The electric tool 100 includes a housing 1, a transmission module 2 accommodated in the housing 1, a driving module 3 driving the transmission module 2, and a control module 4 connected to the driving module 3. The housing 1 is formed with a bracket 11, an output module 12 and a switch module. The bracket 11 is configured to install a hose (not shown in the figure), and the hose stores colloid; the electric glue gun 100 also includes a working head (not shown in the figure), the output module 12 is supported by the housing 1 and is respectively connected to the working head and the transmission module 2, the output module 12 includes a push rod, and the transmission module 2 includes a motor. The motor 2 drives the push rod 12 to slide forward along the extension direction of the push rod 12, thereby squeezing the colloid out of the working head.

[0029] The switch module includes a main switch 13, an unlocking switch 14, a speed control switch 15 and a travel switch 16; the main switch 13 is configured to be operated by a user to start the power tool 100, and preferably, the main switch 13 is a trigger; the unlocking switch 14 is configured to trigger the unlocking switch 14 after the power tool 100 completes the gluing operation, and the user can manually pull the push rod 12 back to the initial position; the speed control switch 15 is configured to be operated by a user to switch different gears; the travel switch 16 is connected to the travel switch push rod 17, and the travel switch 16 is connected to the travel switch push rod 17 through a spring 18. When the motor 2 drives the push rod 12 to slide forward, when the push rod 12 abuts against the travel switch push rod 17, the travel switch 16 is triggered. At this time, the push rod 12 has advanced to the limit position, and the control module 4 controls the push rod 12 to move in reverse.

[0030] The electric tool 100 further includes an angle detection module 5, which is connected to the control module 4 and the motor 2. Preferably, the angle detection module 5 is a posture sensor, which senses the gluing angle of the electric tool 100. The control module 4 is configured to set the angle perpendicular to the ground as a judgment reference, and when the offset between the gluing angle and the judgment reference changes, the control module 4 controls the speed of the motor 2 to remain stable, wherein the glue output of the electric tool 100 is proportional to the speed.

[0031] In this embodiment, the range of the offset is set to be greater than or equal to 0 degrees and less than or equal to 180 degrees. When the offset is 0 degrees, the extension direction of the hose is perpendicular to the ground along the first direction, and the user can apply glue to the workpiece placed on the ground; when the offset is 180 degrees, the extension direction of the hose is perpendicular to the ground along the second direction completely opposite to the first direction, and the user can apply glue to the workpiece placed on the top; when the offset is 90 degrees, the extension direction of the hose is parallel to the ground, and the control module 4 controls the motor 2 to rotate at a predetermined speed; when the offset is at any angle between 0 degrees and 180 degrees, the control module 4 controls the speed of the motor 2 to automatically adjust to the predetermined speed, so as to control the speed of the motor 2 to remain stable, and the glue output of the electric glue gun 100 is proportional to the speed, so that the glue output at different gluing angles per unit time is consistent, further ensuring that the user applies glue evenly during operation. Wherein, the predetermined speed is stored in the control module 4.

[0032] In another embodiment of the utility model, the electric tool 100 is preferably an electric dust removal gun (not shown). When the user holds the electric dust removal gun 100 for dust removal, the air output of the electric dust removal gun 100 will also change with the change of the working angle. The air output when the user removes dust at an angle perpendicular to the ground downward is much larger than the air output when the user removes dust at an angle perpendicular to the ground upward. By setting a posture sensor 5, when the air outlet angle of the electric dust removal gun 100 changes, the control module 4 controls the speed of the motor 2 to automatically adjust to the predetermined speed, so as to control the speed of the motor 2 to remain stable, and the air output of the electric dust removal gun 100 is proportional to the speed, so that the air output at different working angles per unit time remains consistent, further ensuring that the user can better remove dust during operation.

[0033] The utility model electric tool detects the working angle through the angle detection module, and the control module controls and adjusts the rotation speed of the motor to keep it stable according to the offset of the working angle, so as to ensure that the glue output or gas output remains unchanged when working at different angles.

[0034] The utility model is not limited to the above specific implementations. Those skilled in the art can easily understand that there are many alternatives to the control method of the utility model without departing from the principle and scope of the utility model. The protection scope of the utility model shall be based on the content of the claims.

Claims

1. An electric tool comprising: A shell, a motor accommodated in the shell and a control module connected to the motor; characterized in that: the electric tool also includes an angle detection module, the angle detection module is connected to the control module and is configured to collect the working angle of the electric tool, the control module is configured to set the angle perpendicular to the ground as a judgment reference, when the offset between the working angle and the judgment reference changes, the control module controls the speed of the motor to remain stable.

2. The electric tool according to claim 1, characterized in that: The electric tool further comprises a working head and an output module, wherein the output module is connected to the working head and the motor respectively.

3. The electric tool according to claim 2, characterized in that: The working head is used to discharge materials required by the user, and the motor rotates to drive the output module to work, so that the materials flow out of the working head.

4. The electric tool according to claim 3, characterized in that: The angle detection module is a posture sensor, and the posture sensor senses the working angle of the working head of the electric tool.

5. The electric tool according to claim 4, characterized in that: The range of the offset is set to be greater than or equal to 0 degrees and less than or equal to 180 degrees.

6. The electric tool according to claim 5, characterized in that: When the offset is 0 degrees, the extension direction of the working head is perpendicular to the ground along the first direction, and the user can operate on the workpiece placed on the ground.

7. The electric tool according to claim 6, characterized in that: When the offset is 180 degrees, the extension direction of the working head is perpendicular to the ground along a second direction completely opposite to the first direction, and the user can work on the workpiece placed on the top.

8. The electric tool according to claim 7, characterized in that: When the offset is 90 degrees, the extension direction of the working head is parallel to the ground, and the control module controls the motor to rotate at a predetermined speed, wherein the predetermined speed is stored in the control module.

9. The electric tool according to claim 8, characterized in that: When the offset is at any angle between 0 degrees and 180 degrees, the control module controls the rotation speed of the motor to automatically adjust to the predetermined rotation speed.

10. The electric tool according to claim 9, characterized in that: The electric tool is an electric glue gun or an electric dust removal gun.

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