CN113878550A - Safety device for hand-held electric tool - Google Patents
Safety device for hand-held electric tool Download PDFInfo
- Publication number
- CN113878550A CN113878550A CN202111293741.XA CN202111293741A CN113878550A CN 113878550 A CN113878550 A CN 113878550A CN 202111293741 A CN202111293741 A CN 202111293741A CN 113878550 A CN113878550 A CN 113878550A
- Authority
- CN
- China
- Prior art keywords
- socket
- hand
- controller
- shell
- plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a safety device of a handheld electric tool.A pressure sensing part is connected with a controller through a connecting cable, and the controller and a socket unit carry out wireless communication and output control; the pressure sensing part comprises a binding belt, a sensing touch disc, a pressure sensor, a resistance voltage conversion module and a cable interface, wherein the binding belt is arranged at each of two ends of the pressure sensing part, the sensing touch disc is connected with the binding belt, the pressure sensor is arranged below the sensing touch disc, the pressure sensor is connected with the resistance voltage conversion module, and the resistance voltage conversion module is used for connecting the converted high-low level signals with a connecting cable through the cable interface; the controller receives the signal transmitted by the pressure sensing part, judges whether the pressure of the hand is lower than a preset value or not, and controls the power supply output of the socket unit to be turned on and off according to the judgment. The invention realizes the safe and reliable pressure detection of whether the hand-held electric tool is held by the handle when the hand-held electric tool is used, and simultaneously, the power of the electric tool is cut off in time when the hand-held electric tool is judged to be unsafe.
Description
Technical Field
The invention belongs to the technical field of electricians, and relates to a safety device of a handheld electric tool.
Background
When using a hand-held power tool, many safety hazards, such as injury to the workpiece or injury to the operator, may result from an unstable hand grip. The existing products in the market at present are remote control 220V sockets or intelligent wireless sockets and the like, only comprise a wireless control function, do not have a handle pressure sensing unit and other functions in a control unit, and cannot realize the safety control of the handheld electric tool.
Disclosure of Invention
In order to solve the problems, the technical scheme of the invention is as follows:
a safety device for a hand-held power tool includes a pressure sensing part, a connection cable, a controller, and a socket unit, wherein,
the pressure sensing part is connected with the controller through a connecting cable, and the controller and the socket unit are in wireless communication and output control;
the pressure sensing part comprises a binding belt, a sensing touch pad, a pressure sensor, a resistance voltage conversion module and a cable socket, wherein the binding belt is arranged at each of two ends of the pressure sensing part, so that the sensing touch pad is fixed at the handheld position of the handheld electric tool and is connected with the binding belt;
the controller receives the signal transmitted by the pressure sensing part, judges whether the pressure of the hand grip is lower than a preset value or not, and controls the power supply output of the socket unit to be turned on and off according to the judgment.
Preferably, the pressure sensor is a resistive flexible membrane pressure sensor.
Preferably, the connection cable comprises a sensing part plug connector, a wire and a controller plug connector which are sequentially connected, wherein the sensing part plug connector is connected with a cable plug interface of the pressure sensing part, and the controller plug connector is connected with the controller.
Preferably, the controller comprises a control shell, a control panel, a rechargeable battery, a viscous elastic cushion layer and a strong magnet, wherein the control panel and the rechargeable battery are arranged in the shell, the viscous elastic cushion layer and the strong magnet are arranged on the lower surface of the shell, and the control panel is connected with the rechargeable battery.
Preferably, the control housing includes a fastening bolt, an upper cover, and a bottom case, and the upper cover and the bottom case are assembled by tightening the fastening bolt.
Preferably, the control panel includes a control circuit, a wireless module, a charging circuit, a control indicator light and a cable plug, wherein the control circuit outputs a control signal for turning on and off the power supply of the socket unit through the wireless module, the charging circuit charges the rechargeable battery, the control indicator light displays the working state, and the cable plug is connected with the connection cable and also serves as a charging interface for the rechargeable battery.
Preferably, the socket unit comprises a socket shell, an output socket, a socket control board and a plug copper sheet, wherein the output socket is arranged on the upper surface of the socket shell, the socket control board is arranged inside the socket shell, and the plug copper sheet is arranged on the lower surface of the socket shell; the plug copper sheet is connected with the universal socket, and the socket control panel receives a power supply opening and closing control signal sent by the controller, so that the power supply output of the output socket is correspondingly opened and closed.
Preferably, the socket housing includes a socket key for performing a manual emergency power-off of a power output of the socket unit and for communicating with the controller as a function key, an upper case, a lower case, and a socket bolt, and the upper case and the lower case are assembled together by being screwed by the socket bolt.
Preferably, a socket copper sheet, a socket frame and a socket bolt are arranged below the output socket, and the socket copper sheet is fixed on the socket frame by the socket bolt.
Preferably, a plug frame and a plug screw are arranged above the plug copper sheet, and the plug screw is screwed to fasten the plug frame on the lower shell, so that the plug copper sheet is fixed below the lower shell.
Compared with the prior art, the invention has the beneficial effects that at least:
(1) the pressure of the hand is sensed by the pressure sensing part, the bridle and the resistance-type flexible film pressure sensor can be suitable for the grips of most of hand-held electric tools, pressure data is transmitted to the controller through the resistance voltage conversion unit in real time, and the controller judges whether the pressure is in a safe grip range;
(2) a connecting cable is arranged to stably and electrically connect the pressure sensing part with the controller;
(3) the adhesive elastic cushion layer and the powerful magnet are arranged below the controller, so that the controller and the electric tool are ensured to be fixed;
(4) the socket unit is in effective wireless connection and control with the controller, and safe and reliable control is carried out on power output.
Drawings
FIG. 1 is a schematic structural diagram of a safety device of a hand-held power tool according to an embodiment of the present invention;
FIG. 2 is a diagram of the application of the safety device of a hand-held power tool in accordance with an embodiment of the present invention;
FIG. 3 is a diagram of the application of the safety device of a hand-held power tool in accordance with yet another embodiment of the present invention;
FIG. 4 is a schematic diagram of a pressure sensing portion of a safety device of a hand-held power tool according to an embodiment of the present invention;
FIG. 5 is a block diagram of a controller for a safety device of a hand held power tool in accordance with an embodiment of the present invention;
FIG. 6 is a block diagram of a socket unit of the safety device of the hand held power tool according to the embodiment of the present invention;
fig. 7 is a side view of a socket unit of a safety device of a hand-held power tool in accordance with an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Referring to fig. 1 to 3, a structure of a safety device of a handheld electric tool and an application example thereof are shown, including a pressure sensing part 10, a connection cable 20, a controller 30 and a socket unit 40, wherein the pressure sensing part 10 is connected to the controller 30 through the connection cable 20, and the controller 30 and the socket unit 40 perform wireless communication and output control. Further referring to fig. 4, the pressure sensing portion 10 includes a strap 11, a sensing pad 12, a pressure sensor 13, a resistance-voltage conversion module 14, and a cable socket 15, where the strap 11 is respectively disposed at two ends of the pressure sensing portion 10, the sensing pad 12 is connected to the strap 11, in a specific embodiment, the strap is connected at a vertical angle, the pressure sensor 13 is disposed below the sensing pad 12, the pressure sensor 13 is connected to the resistance-voltage conversion module 14, and the resistance-voltage conversion module 14 connects the converted voltage to the connection cable 20 through the cable socket 15. The controller 30 receives the signal transmitted from the pressure sensing part 10, determines whether the pressure of the hand is lower than a preset value, and controls the power output of the outlet unit 40 to be turned on or off according to the determination.
The induction touch pad 12 is made of flexible waterproof dustproof insulating materials (such as silica gel and the like), a resistance-type flexible thin film pressure sensor 13 and a resistance voltage conversion module 14 are arranged in the induction touch pad, and the bridle 11 is made of flexible high-elasticity materials and is used for fixing the induction touch pad 12 on a handle 51 of a handheld electric tool and can be conveniently detached so as to be used for other electric tools 50; the connecting cable 20 is a lead 22 with two ends provided with connectors, the sensing part connector 21 at one end is connected with the pressure sensing part 10, and the controller connector 23 at the other end is connected with the controller 30; the control shell 31 of the controller 30 is made of dustproof and waterproof insulating materials and is internally provided with a control panel 36, the control panel 36 comprises a control circuit, a wireless module, a charging circuit, a control indicator lamp 33 and a cable plug-in connector 37, wherein the control circuit outputs on and off control signals to the power supply of the socket unit 40 through the wireless module, the charging circuit charges the rechargeable battery 35, the control indicator lamp 33 displays the working state, the cable plug-in connector 37 is connected with the connecting cable 20 and is also used as a charging interface for the rechargeable battery 35, and the bottom of the bottom shell 312 is provided with an adhesive elastic cushion layer 32 and a strong magnet 38 which are used for firmly attaching the controller 30 to the shell of the handheld electric tool; the socket unit 40 is internally provided with a socket control board 4536, the socket control board 4536 receives a wireless signal from the controller 30 and controls the power supply of the output socket 43 to be turned on and off, the socket unit 40 is externally provided with a key and a socket indicator lamp 42, the key can be used for manually and emergently turning on or turning off the power supply of the output socket 43, and the socket indicator lamp 42 is used for indicating the working state of the socket unit 40.
The resistance voltage conversion module 14 converts the resistance value into the voltage value by applying a certain pressure to the resistance-type flexible film pressure sensor 13 in the pressure sensing part 10 fixed on the handle 51 of the hand-held electric tool by the strap 11, and the connection cable 20 transmits the output high-low level signal to the controller 30, and the controller 30 directly connects the socket control board 45 located in the socket unit 40 by a wireless signal, so as to control the power supply of the output socket 43 of the socket unit 40 to be turned on and off, thereby achieving the purpose that the electric tool 50 can be started only by firmly holding the electric tool 50, and the holding pressure reduction (such as slipping, releasing hands, carelessness and the like) of the electric tool 50 caused by various reasons in the using process can also stop the electric tool 50, thereby achieving the purpose of safe use. In both types of electric tools 50 shown in fig. 2 and 3, the pressure sensing portion 10 can be pressed against the grip 51 by the strap 11, and the controller 30 does not fall outside the electric tool 50.
In a specific embodiment, the pressure sensor 13 is a flexible film resistor.
The connection cable 20 includes a sensing part plug 21, a wire 22 and a controller plug 23 connected in sequence, wherein the sensing part plug 21 is connected with the cable plug 15 of the pressure sensing part 10, and the controller plug 23 is connected with the controller 30.
Referring to fig. 5, the controller 30 includes a control case 31, a control board 36, a rechargeable battery 35, an adhesive elastic pad 32, and a strong magnet 38, wherein the control board 36 and the rechargeable battery 35 are disposed in the case, the adhesive elastic pad 32 and the strong magnet 38 are disposed on a lower surface of the control case 31, and the control board 36 is connected to the rechargeable battery 35. The control housing 31 includes fastening bolts 34, an upper cover 311, and a bottom case 312, and the upper cover 311 and the bottom case 312 are assembled by tightening the fastening bolts 34.
Referring to fig. 6 and 7, the socket unit 40 includes a socket housing 41, an output jack 43, a socket control board 45 and a plug copper sheet 481, the output jack 43 is disposed on the upper surface of the socket housing 41, the socket control board 45 is disposed inside the socket housing 41, and the plug copper sheet 481 is disposed on the lower surface of the socket housing 41; the plug copper sheet 481 is connected to a universal socket, and the socket control board 45 receives a power on/off control signal sent by the controller 30, so as to correspondingly switch on/off the power output of the output socket 43. The socket housing 41 includes a socket key 44, an upper case 411, a lower case 412, and a socket bolt 46, the socket key 44 performs a manual emergency power-off of the power output of the socket unit 40, and the upper case 411 and the lower case 412 are assembled by screwing the socket bolt 46. Below the output socket 43, a socket copper plate 471, a socket frame 472 and a socket bolt 473 are disposed, and the socket bolt 473 fixes the socket copper plate 471 to the socket frame 472. A plug frame 482 and plug screws 483 are provided above the plug copper sheet 481, and the plug screws 483 are screwed to fasten the plug frame 482 to the lower case 412, thereby fixing the plug copper sheet 481 below the lower case 412.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A safety device for a hand-held power tool, comprising: comprises a pressure sensing part, a connecting cable, a controller and a socket unit, wherein,
the pressure sensing part is connected with the controller through a connecting cable, and the controller and the socket unit are in wireless communication and output control;
the pressure sensing part comprises a binding belt, a sensing touch pad, a pressure sensor, a resistance voltage conversion module and a cable socket, wherein the binding belt is arranged at each of two ends of the pressure sensing part, so that the sensing touch pad is fixed at the handheld position of the handheld electric tool and is connected with the binding belt;
the controller receives the signal transmitted by the pressure sensing part, judges whether the pressure of the hand grip is lower than a preset value or not, and controls the power supply output of the socket unit to be turned on and off according to the judgment.
2. The safety device for a hand-held power tool according to claim 1, wherein: the pressure sensor is a resistance-type flexible film pressure sensor.
3. The safety device for a hand-held power tool according to claim 1, wherein: the connecting cable comprises a sensing part plug connector, a wire and a controller plug connector which are sequentially connected, wherein the sensing part plug connector is connected with a cable plug interface of the pressure sensing part, and the controller plug connector is connected with the controller.
4. The safety device for a hand-held power tool according to claim 1, wherein: the controller comprises a control shell, a control panel, a rechargeable battery, a viscous elastic cushion layer and a strong magnet, wherein the control panel and the rechargeable battery are arranged in the shell, the viscous elastic cushion layer and the strong magnet are arranged on the lower surface of the shell, and the control panel is connected with the rechargeable battery.
5. The hand-held power tool safety device of claim 4, wherein: the control shell comprises a fastening bolt, an upper cover and a bottom shell, and the upper cover and the bottom shell are assembled together by screwing the fastening bolt.
6. The hand-held power tool safety device of claim 4, wherein: the control panel comprises a control circuit, a wireless module, a charging circuit, a control indicator lamp and a cable plug connector, wherein the control circuit outputs a starting and closing control signal to the power supply of the socket unit through the wireless module, the charging circuit charges the rechargeable battery, the control indicator lamp displays the working state, and the cable plug connector is connected with the connecting cable and also serves as a charging interface for the rechargeable battery.
7. The safety device for a hand-held power tool according to claim 1, wherein: the socket unit comprises a socket shell, an output socket, a socket control board and a plug copper sheet, wherein the output socket is arranged on the upper surface of the socket shell, the socket control board is arranged in the socket shell, and the plug copper sheet is arranged on the lower surface of the socket shell; the plug copper sheet is connected with the universal socket, and the socket control panel receives a power supply opening and closing control signal sent by the controller, so that the power supply output of the output socket is correspondingly opened and closed.
8. The hand-held power tool safety device of claim 7, wherein: the socket shell comprises a socket key, an upper shell, a lower shell and a socket bolt, the socket key is used for manually and emergently cutting off the power output of the socket unit and is used as a function key to communicate with the controller, and the upper shell and the lower shell are assembled together by screwing the socket bolt.
9. The hand-held power tool safety device of claim 7, wherein: and a socket copper sheet, a socket frame and a socket bolt are arranged below the output socket, and the socket copper sheet is fixed on the socket frame by the socket bolt.
10. The hand-held power tool safety device of claim 8, wherein: and a plug rack and a plug screw are arranged above the plug copper sheet, and the plug rack is fastened on the lower shell by screwing the plug screw, so that the plug copper sheet is fixed below the lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293741.XA CN113878550B (en) | 2021-11-03 | 2021-11-03 | Safety device for hand-held electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293741.XA CN113878550B (en) | 2021-11-03 | 2021-11-03 | Safety device for hand-held electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113878550A true CN113878550A (en) | 2022-01-04 |
| CN113878550B CN113878550B (en) | 2023-06-16 |
Family
ID=79016206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111293741.XA Active CN113878550B (en) | 2021-11-03 | 2021-11-03 | Safety device for hand-held electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113878550B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07220563A (en) * | 1994-02-03 | 1995-08-18 | Otax Kk | Trigger switch for power tool |
| EP1083652A2 (en) * | 1999-09-07 | 2001-03-14 | Shop Vac Corporation | Intelligent switch control circuit |
| WO2015147331A1 (en) * | 2014-03-28 | 2015-10-01 | Hitachi Koki Co., Ltd. | Electric tool |
| CN206401656U (en) * | 2016-12-26 | 2017-08-11 | 河北华网计算机技术有限公司 | A kind of smart jack being used in network system implementation process |
| CN107853790A (en) * | 2017-11-24 | 2018-03-30 | 常州信息职业技术学院 | A kind of Intelligent worn device and its method based on radio communication |
| CN208569335U (en) * | 2018-01-05 | 2019-03-01 | 苏州坚崧电子科技有限公司 | A kind of device for controlling power tool |
| CN209088192U (en) * | 2018-11-26 | 2019-07-09 | 江西同为科技有限公司 | A kind of pair of electric vehicle carries out the socket of intelligent charge |
| CN110653765A (en) * | 2018-06-28 | 2020-01-07 | 苏州宝时得电动工具有限公司 | Electric tool and control device thereof |
| CN111112692A (en) * | 2019-05-28 | 2020-05-08 | 深圳市度彼电子有限公司 | Pressure control speed regulation electric drill |
| CN211484654U (en) * | 2019-12-28 | 2020-09-15 | 西安交通大学 | Monitoring device for manual pressure application and pressure balance on surface of ultrasonic probe |
| CN112197896A (en) * | 2020-10-28 | 2021-01-08 | 西北农林科技大学 | Wearable 16 way pressure data acquisition gloves |
-
2021
- 2021-11-03 CN CN202111293741.XA patent/CN113878550B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07220563A (en) * | 1994-02-03 | 1995-08-18 | Otax Kk | Trigger switch for power tool |
| EP1083652A2 (en) * | 1999-09-07 | 2001-03-14 | Shop Vac Corporation | Intelligent switch control circuit |
| WO2015147331A1 (en) * | 2014-03-28 | 2015-10-01 | Hitachi Koki Co., Ltd. | Electric tool |
| CN206401656U (en) * | 2016-12-26 | 2017-08-11 | 河北华网计算机技术有限公司 | A kind of smart jack being used in network system implementation process |
| CN107853790A (en) * | 2017-11-24 | 2018-03-30 | 常州信息职业技术学院 | A kind of Intelligent worn device and its method based on radio communication |
| CN208569335U (en) * | 2018-01-05 | 2019-03-01 | 苏州坚崧电子科技有限公司 | A kind of device for controlling power tool |
| CN110653765A (en) * | 2018-06-28 | 2020-01-07 | 苏州宝时得电动工具有限公司 | Electric tool and control device thereof |
| CN209088192U (en) * | 2018-11-26 | 2019-07-09 | 江西同为科技有限公司 | A kind of pair of electric vehicle carries out the socket of intelligent charge |
| CN111112692A (en) * | 2019-05-28 | 2020-05-08 | 深圳市度彼电子有限公司 | Pressure control speed regulation electric drill |
| CN211484654U (en) * | 2019-12-28 | 2020-09-15 | 西安交通大学 | Monitoring device for manual pressure application and pressure balance on surface of ultrasonic probe |
| CN112197896A (en) * | 2020-10-28 | 2021-01-08 | 西北农林科技大学 | Wearable 16 way pressure data acquisition gloves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113878550B (en) | 2023-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050072278A1 (en) | Ergonomic electronic torque wrench | |
| EP3785862A1 (en) | Tool with wireless switch | |
| WO2006095353A3 (en) | Portable battery operated power supply | |
| US6376938B1 (en) | Power supply interface device | |
| US7225490B1 (en) | Multi-functional wire stripper | |
| CN113878550B (en) | Safety device for hand-held electric tool | |
| CN206365585U (en) | A kind of luggage hand handle with function of weighing | |
| CN216332484U (en) | Display instrument of electric power-assisted bicycle | |
| CN210429533U (en) | Voltage transformer capable of working under high voltage environment | |
| CN212059179U (en) | Handheld temperature measuring device | |
| CN218513060U (en) | Portable infrared remote control learning device of central control host | |
| CN206161716U (en) | Simple structure's ampere meter | |
| CN210535130U (en) | Light sense experiment demonstration device | |
| JP4095500B2 (en) | Live line detection driver | |
| CN214392740U (en) | Novel soldering tin rifle for electronic engineering | |
| CN214096376U (en) | Handheld infrared thermometer | |
| CN215281581U (en) | Multifunctional vice | |
| CN214502537U (en) | Induction type device based on remote control humiture | |
| CN220691013U (en) | Converter harmonic detection mechanism | |
| CN212445261U (en) | Mechanical arm control device | |
| CN218213193U (en) | Power network harmonic detection device | |
| CN212277570U (en) | Identification system of intelligent mobile terminal Type-C interface | |
| CN219643599U (en) | Portable energy storage power supply with multiple interfaces | |
| CN209926318U (en) | Waterproof joint for connecting lamp bodies | |
| CN210221275U (en) | Indicating value device of electronic scale |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |