CN105710942B - A kind of anticreep electric hand saw - Google Patents
A kind of anticreep electric hand saw Download PDFInfo
- Publication number
- CN105710942B CN105710942B CN201610295594.2A CN201610295594A CN105710942B CN 105710942 B CN105710942 B CN 105710942B CN 201610295594 A CN201610295594 A CN 201610295594A CN 105710942 B CN105710942 B CN 105710942B
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- CN
- China
- Prior art keywords
- backplate
- saw
- electric hand
- anticreep
- protective cover
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G17/00—Manually-operated tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
- B27G19/04—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mining & Mineral Resources (AREA)
- Sawing (AREA)
Abstract
The invention provides a kind of anticreep electric hand saw, including guard section and cut portion, the guard section includes base, arc protective cover and anticreep arm device, the cut portion is fixed on base by support, spring A is provided with outside the arc protective cover, the spring A is connected with backplate, the cut portion includes saw blade, backplate and motor, the motor is fixed on backplate, the outside of backplate is provided with handle, backplate is connected by bearing with support, saw blade is fixed on motor output shaft, the anticreep arm device includes distance-sensor, controller, power supply module and switch module, the distance-sensor is located on the inside of handle, the controller electrically connects with distance-sensor and power supply module respectively, the power supply module also electrically connects with switch module, the switch module electrically connects with motor.The anticreep electric hand saw of the present invention, it is safe, the safety of operating personnel is can effectively ensure that, there is higher practical value and market popularization value.
Description
Technical field
The present invention relates to a kind of electric saw, more particularly to a kind of anticreep electric hand saw.
Background technology
Electric saw due to its fly-cutting and it is time saving and energy saving the advantages of, be widely used in industry, agricultural and national defense construction field.
The electric saw of prior art is universal all heavier, the danger that may cause hand fatigue in use or even slip out of the hand, takes off
Uncontrollable electric saw after hand, thus be easy to that unexpected injury occurs, threaten the security of the lives and property of operating personnel.
The content of the invention
In order to solve the above problems, the invention provides a kind of anticreep electric hand saw.
Technical scheme is as follows：A kind of anticreep electric hand saw, including guard section and cut portion, the protection department
Dividing includes base and arc protective cover, and the cut portion is fixed on base by support, is set outside the arc protective cover
There are spring A, the spring A to be connected with backplate, the cut portion includes saw blade, backplate and motor, and the motor is fixed on shield
On plate, the outside of backplate is provided with handle, and backplate is connected by bearing with support, and saw blade is fixed on motor output shaft, described anti-
Shield part also includes anticreep arm device, and the anticreep arm device includes distance-sensor, controller, power supply module and switching molding
Block, the distance-sensor are located on the inside of handle, and the controller electrically connects with distance-sensor and power supply module respectively, described
Power supply module also electrically connects with switch module, and the switch module also electrically connects with motor.
Technical solution of the present invention also includes, and the arc protective cover includes fixed part and extendable portion, the fixation
Slide rail is provided with internal partial wall, the extendable portion is arranged on slide rail, and the extendable portion slides along slide rail, described
Extendable portion is divided into metalwork, and electromagnet, the electromagnet and the switch in anticreep arm device are set on the inside of the fixed part
Module electrically connects.Due to lacking brake gear, stopping operation rear saw blade and generally requiring the several seconds can just stop, and be needed next time before technique
Wait, easy upspring in ground is put into busy and causes human injury or sawed-off circuit to cause to stop work, and then influences work
Make efficiency.When power is off, switch module disconnects under the control of the controller, electromagnet is lost magnetism, and then makes extendable portion
Point slid by slide rail due to Action of Gravity Field, protect the security of the lives and property of user, slide rail can ensure that extendable portion moves
Dynamic direction, and avoid coming off for extendable portion.
Technical solution of the present invention also includes, and the electromagnet quantity is two groups, and two groups of electromagnet are arranged in juxtaposition, can be with
Strengthen magnetic, ensure the suction to extendable portion.
Technical solution of the present invention also includes, and the lower end of the extendable portion outer is provided with push jack.When in power-off shape
State, extendable portion branch block saw blade, it is necessary to during using electric saw, push back extendable portion in fixed part using push jack
Side, then proceed to carry out the work.
Technical solution of the present invention also includes, and the extendable portion is divided into aluminium alloy and is made.Aluminium alloy has light weight, hardness
The advantages of higher, and cheap, it is ensured that extendable portion after being powered by electromagnet caused magnetic hold, enter
And the inner side of arc protective cover fixed part is fixed on, ensure normally to work and be not easy to be cut by saw blade to be broken, and then ensure
The safety of operating personnel.
Technical solution of the present invention also includes, and heat emission hole is provided with the backplate, and the heat emission hole is located at around motor, side
Help motor to be radiated, in order to avoid being powered off because temperature is too high, and then ensure operating efficiency.
Technical solution of the present invention also includes, and the guard section also includes counnter attack diving board, and the counnter attack diving board is located at base
Lower end, after preventing arc protective cover extendable portion from breaking down or be pierced, the saw blade of rotation is sent out after being contacted with ground
Raw bounce-back.
Technical solution of the present invention also includes, and the guard section also includes the U-shaped protective cover positioned at base rear portion, the U
Type protective cover is the U-shape structure of front opening, and the U-shaped protective cover is arranged on saw blade rear end.Saw blade rear end is corresponded on base
One U-shaped protective cover is installed, effectively to prevent material chips from, along saw tail splashes, causing casualty accident.
Technical solution of the present invention also includes, and the guard section also includes fan, and the fan is located on the outside of saw blade, described
Fan is fixed on motor output shaft, and fan outer rim is provided with ring shaped retainers.Fan is installed on the outside of saw blade, makes the same of work piece cut
When saw blade is cooled, effectively to prevent that workpiece deforms caused by temperature is too high.
Technical solution of the present invention also includes, and the guard section also includes brake apparatus, and the brake apparatus includes braking
Button, the locking key are connected with spring B one end, and the spring B other end is connected with connecting rod front end, the connecting rod
Rear end is connected with arc pressuring plate front end, and the rear end of the arc pressuring plate is located at the outside of ring shaped retainers.Braking is set on handle
Device, drive arc pressuring plate to compress the ring shaped retainers of fan outer rim by pressing locking key after the completion of cutting, connect fan
Stopped the rotation with motor output shaft, so as to which the saw blade ensured on motor output shaft can quickly stop, avoid it is busy during saw
Piece does not stop in time causes to cut off electric wire or bounce-back such as is hurted sb.'s feelings at the generation of accident, while shortens waiting time, improves operating efficiency.
Beneficial effects of the present invention are：A kind of anticreep electric hand saw provided by the invention, increases on the basis of existing technology
Anticreep arm device, when electric saw is started working, anticreep arm device connects simultaneously, over time, if operating personnel because
Hand fatigue causes electric saw to be slipped out of the hand, and distance-sensor detection disengaging handle in one's hands goes beyond the scope, and is informed about controller, controller
Order will be sent powers off motor by switch module, so that saw blade stops the rotation, the saw blade for avoiding rotating at a high speed is dropping
When threaten the life and health of operating personnel, while coordinate the extendable portion of arc protective cover, can effectively block saw blade, avoid
Still hurted sb.'s feelings in the saw blade of rotation.Anticreep electric hand saw provided by the invention, it is simple in construction, it is safe, it can effectively ensure that behaviour
Make the safety of personnel, there is higher practical value and market popularization value.
Brief description of the drawings
Fig. 1 is anticreep arm device workflow diagram；
Fig. 2 is anticreep electric hand saw structural representation of the present invention；
Fig. 3 is arc protective cover structural representation；
Fig. 4 is brake device structure schematic diagram.
Wherein, 1, base；2nd, support；3rd, saw blade；4th, backplate；5th, motor；6th, handle；7th, bearing；8th, camber protective cover；9、
Arc slide rail；10th, spring A；11st, U-shaped protective cover；12nd, fan；13rd, ring shaped retainers；14th, camber pressing plate；15th, connecting rod；16、
Spring B；17th, locking key；18th, counnter attack diving board, 19, distance-sensor, 20, controller, 21, power supply module, 22, switching molding
Block, 23, fixed part, 24, extendable portion, 25, slide rail, 26, electromagnet, 27, heat emission hole, 28, push jack, 29, iron core.
Embodiment
Below according to accompanying drawing and a kind of preferably embodiment is combined, technical scheme is further described.
A kind of anticreep electric hand saw, including guard section and cut portion, the guard section includes base 1 and arc protects
Cover 8, the cut portion is fixed on base 1 by support 2, and the outside of arc protective cover 9 is provided with spring A10, the bullet
Spring A10's is connected with backplate 4, and the cut portion includes saw blade 3, backplate 4 and motor 5, and the motor 5 is fixed on backplate 4,
The outside of backplate 4 is provided with handle 6, and backplate 4 is connected by bearing 7 with support 2, and saw blade 3 is fixed on the output shaft of motor 5, institute
State arc protective cover 8 to divide for fixed part 23 and extendable portion 24, as shown in figure 3, setting on the inwall of the fixed part 23
There is slide rail 25, the extendable portion 24 is arranged on slide rail 25, and the extendable portion 24 slides along slide rail 25, described to prolong
Extending portion point 24 is metalwork, and the inner side of fixed part 23 sets electromagnet 26, and the guard section also includes anticreep arm device,
The anticreep arm device includes distance-sensor 19, controller 20, power supply module 21 and switch module 22, the distance-sensor
19 electrically connect with distance-sensor 19 and power supply module 21 respectively positioned at the inner side of handle 6, the controller 20, the power supply module
21 also electrically connect with switch module 22, and the switch module 22 also electrically connects with motor 5 and electromagnet 26 respectively, its workflow
Figure is as shown in Figure 1.The metallic channel passed through for wire, the wire of the metallic channel connection arc protective cover are provided with the backplate
Export, the wire wound on the electromagnet passes through arc protective cover and metallic channel coupling cock module, is set in the handle
There is the path passed through for wire, the distance-sensor is connected by path and metallic channel with switch module.
When electric saw is started working, anticreep arm device connects simultaneously, over time, if operating personnel are tired because of hand
Labor causes electric saw to be slipped out of the hand, and distance-sensor 19 detects disengaging handle 6 in one's hands and exceeds 3~5mm, is informed about controller 20, controls
Device 20 can send order after signal is received makes switch module 22 disconnect power supply of the power supply module 21 to motor 5, loses saw blade
Power, the life and health that speed slows down to avoid the saw blade 3 rotated at a high speed from threatening operating personnel when dropping.It is simultaneously raw using electricity
The principle of magnetic, magnetic field is produced when electromagnet 26 is powered can be fixed on extendable portion 24 inner side of fixed part 23, work as power-off
When（Switch module disconnects）Electromagnet 26 can lose magnetism, and extendable portion 24 blocks because Action of Gravity Field can slide along slide rail 25
Saw blade 3, and then unexpected generation is prevented, the quantity of electromagnet 26 is two groups, and two groups of electromagnet 26 are arranged in juxtaposition.Institute
The lower end for stating the outer of extendable portion 24 is provided with push jack 28.When saw blade 3 can be blocked in off-position, extendable portion 24,
When needing to use electric saw, extendable portion 24 is pushed back into the inner side of fixed part 23 using push jack 28, then proceedes to carry out the work.
Iron core 29 is inserted in electromagnet 26, iron core 29 can be assembled and strengthen its magnetic force, and obvious magnetic pole is especially formed in end, and
Electromagnet 26 can be fixed on fixed part.
The extendable portion 24 is made up of aluminium alloy.Aluminium alloy has light weight, hardness higher and cheap
Advantage, it is ensured that caused magnetic is held after extendable portion can be powered by electromagnet 26, and then is fixed on arc protection
The inner side of cover fixed part 23, ensure normally to work and be not easy to cut fracture by saw blade 3, and then ensure the peace of operating personnel
Entirely.
The guard section also includes counnter attack diving board 18 and the U-shaped protective cover 11 positioned at the rear portion of base 1, the counnter attack diving board
18 are located at the lower end of base 1, after preventing the extendable portion 24 of arc protective cover 8 from breaking down or be pierced, the saw blade 3 of rotation
Rebounded after being contacted with ground.The U-shaped protective cover 11 is the U-shape structure of front opening, and the U-shaped protective cover 11 is arranged at
The rear end of saw blade 3.The rear end of saw blade 3 is corresponded on base 1 one U-shaped protective cover 11 is installed, effectively to prevent material chips along saw tail
Splashes, cause casualty accident.As shown in Fig. 2 the guard section also includes fan 12, the fan 12 is located at outside saw blade
Side, the fan 12 are fixed on motor output shaft, and the outer rim of fan 12 is provided with ring shaped retainers.Fan 12 is installed on the outside of saw blade,
Make to cool to saw blade 3 while work piece cut, effectively to prevent that workpiece deforms caused by temperature is too high.Set on the backplate
Heat emission hole 27 is equipped with, helps motor 5 to be radiated, in order to avoid being powered off because temperature is too high, and then ensures operating efficiency.
As shown in figure 4, the guard section also includes brake apparatus, the brake apparatus is by locking key 17, spring
B16, connecting rod 15 and arc pressuring plate 14 are formed, and the locking key is connected with spring B one end, the other end of spring B 16 with
The front end of connecting rod 15 is connected, and the rear end of the connecting rod 15 is connected with the front end of arc pressuring plate 14, the rear end of the arc pressuring plate 14
Positioned at the outside of ring shaped retainers.Brake apparatus is set on handle, arc is driven by pressing locking key 17 after the completion of cutting
Pressing plate 14 compresses the ring shaped retainers of the outer rim of fan 12, fan 12 is stopped the rotation together with the output shaft of motor 5, so as to ensure motor
Saw blade 3 on 5 output shafts can quickly stop, avoid it is busy during saw blade 3 do not stop in time and cause to cut off electric wire or bounce-back
The generation for the accident such as hurt sb.'s feelings, while shorten waiting time, improve operating efficiency.
Anticreep electric hand saw provided by the invention, adds anticreep arm device on the basis of existing technology, when electric saw starts
During work, anticreep arm device connects simultaneously, over time, if operating personnel because hand fatigue causes electric saw to be slipped out of the hand, away from
Disengaging handle in one's hands is detected from inductor 19 to go beyond the scope, and is informed about controller 20, controller 20, which will send order, makes electricity
Machine 5 powers off, so that saw blade 3 stops the rotation, the saw blade 3 for avoiding rotating at a high speed threatens the life and health of operating personnel when dropping,
Coordinate arc protective cover 8 simultaneously, can effectively block saw blade 3, avoid the saw blade 3 of rotation from hurting sb.'s feelings.The present invention is simple in construction, safety
Property it is high, can effectively ensure that the safety of operating personnel, there is higher practical value and market popularization value.
Front end described in description of the invention is close to user one end, and rear end is away from user one end.
It is described above, only it is presently preferred embodiments of the present invention, any formal limitation is not done to the present invention, it is all at this
All any modification, equivalent and improvement etc. are done within the spirit and principle of invention, should be included in protection scope of the present invention
Within.
Claims (9)
1. a kind of anticreep electric hand saw, including guard section and cut portion, it is characterised in that：The guard section include base and
Arc protective cover, the cut portion are fixed on base by support, described provided with spring A outside the arc protective cover
Spring A is connected with backplate, and the cut portion includes saw blade, backplate and motor, and the motor is fixed on backplate, outside backplate
Side is provided with handle, and backplate is connected by bearing with support, and saw blade is fixed on motor output shaft, and the guard section also includes anti-
Slip out of the hand device, the anticreep arm device includes distance-sensor, controller, power supply module and switch module, and the distance perspective should
Device is located on the inside of handle, and the controller electrically connects with distance-sensor and power supply module respectively, and the power supply module is also with opening
Module electrical connection is closed, the switch module also electrically connects with motor, and the arc protective cover includes fixed part and extendable portion
Point, slide rail is provided with the fixed part inwall, the extendable portion is arranged on slide rail, and the extendable portion edge is sliding
Rail slides, and the extendable portion is divided into metalwork, and electromagnet, the electromagnet and the dress that prevents it from being out of hand are set on the inside of the fixed part
Switch module electrical connection in putting.
A kind of 2. anticreep electric hand saw as claimed in claim 1, it is characterised in that：The electromagnet quantity is two groups, two groups of electricity
Magnet is arranged in juxtaposition.
A kind of 3. anticreep electric hand saw as claimed in claim 2, it is characterised in that：The lower end of the extendable portion outer is set
There is push jack.
A kind of 4. anticreep electric hand saw as claimed in claim 2, it is characterised in that：The extendable portion is divided into aluminium alloy and is made.
A kind of 5. anticreep electric hand saw as described in Claims 1-4 is any, it is characterised in that：Radiating is provided with the backplate
Hole, the heat emission hole are located at around motor.
A kind of 6. anticreep electric hand saw as claimed in claim 5, it is characterised in that：The guard section also includes counnter attack diving board,
The counnter attack diving board is located at base lower end.
A kind of 7. anticreep electric hand saw as claimed in claim 5, it is characterised in that：The guard section is also included after being located at base
The U-shaped protective cover in portion, the U-shaped protective cover are the U-shape structure of front opening, and the U-shaped protective cover is arranged on saw blade rear end.
A kind of 8. anticreep electric hand saw as claimed in claim 5, it is characterised in that：The guard section also includes fan, described
Fan is fixed on motor output shaft, and the fan is located on the outside of saw blade, and fan outer rim is provided with ring shaped retainers.
A kind of 9. anticreep electric hand saw as claimed in claim 8, it is characterised in that：The guard section also includes brake apparatus,
The brake apparatus includes locking key, and the locking key is connected with spring B one end, the spring B other end and connecting rod
Front end is connected, and the rear end of the connecting rod is connected with arc pressuring plate front end, and the rear end of the arc pressuring plate is located at ring shaped retainers
It is outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295594.2A CN105710942B (en) | 2016-05-06 | 2016-05-06 | A kind of anticreep electric hand saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295594.2A CN105710942B (en) | 2016-05-06 | 2016-05-06 | A kind of anticreep electric hand saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105710942A CN105710942A (en) | 2016-06-29 |
| CN105710942B true CN105710942B (en) | 2018-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295594.2A Active CN105710942B (en) | 2016-05-06 | 2016-05-06 | A kind of anticreep electric hand saw |
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| CN (1) | CN105710942B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114431919A (en) * | 2022-01-11 | 2022-05-06 | 查明福 | Special intelligent orthopedics saw of bone surgery |
| CN115625800B (en) * | 2022-10-25 | 2023-09-26 | 天元建设集团有限公司 | Grooving equipment for building hydropower installation |
| CN116423675A (en) * | 2023-03-24 | 2023-07-14 | 徐州振丰新型墙体材料有限公司 | Wall body production cutting device |
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|---|---|---|---|---|
| US4334357A (en) * | 1980-08-08 | 1982-06-15 | Black & Decker Inc. | Safety braking apparatus for a portable chain saw |
| US4553326A (en) * | 1983-01-14 | 1985-11-19 | Mcculloch Corporation | Chain saw braking system |
| US4793064A (en) * | 1986-05-02 | 1988-12-27 | Kioritz Corporation | Chain saw safety braking device |
| CN2542420Y (en) * | 2001-04-23 | 2003-04-02 | 吴艺鹏 | Induction machine type electric circular saw |
| CN1460054A (en) * | 1999-10-01 | 2003-12-03 | Sd3有限责任公司 | Safety systems for power equipment |
| CN201636518U (en) * | 2010-01-08 | 2010-11-17 | 陈辉成 | Safety device of electric appliance |
| CN202742353U (en) * | 2012-06-19 | 2013-02-20 | 浙江信源电器制造有限公司 | Safety protection device for electric tool |
-
2016
- 2016-05-06 CN CN201610295594.2A patent/CN105710942B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4334357A (en) * | 1980-08-08 | 1982-06-15 | Black & Decker Inc. | Safety braking apparatus for a portable chain saw |
| US4553326A (en) * | 1983-01-14 | 1985-11-19 | Mcculloch Corporation | Chain saw braking system |
| US4793064A (en) * | 1986-05-02 | 1988-12-27 | Kioritz Corporation | Chain saw safety braking device |
| CN1460054A (en) * | 1999-10-01 | 2003-12-03 | Sd3有限责任公司 | Safety systems for power equipment |
| CN2542420Y (en) * | 2001-04-23 | 2003-04-02 | 吴艺鹏 | Induction machine type electric circular saw |
| CN201636518U (en) * | 2010-01-08 | 2010-11-17 | 陈辉成 | Safety device of electric appliance |
| CN202742353U (en) * | 2012-06-19 | 2013-02-20 | 浙江信源电器制造有限公司 | Safety protection device for electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105710942A (en) | 2016-06-29 |
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