CN102825302B - Double-microswitch protection system for bench drills - Google Patents
Double-microswitch protection system for bench drills Download PDFInfo
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- CN102825302B CN102825302B CN201210341262.5A CN201210341262A CN102825302B CN 102825302 B CN102825302 B CN 102825302B CN 201210341262 A CN201210341262 A CN 201210341262A CN 102825302 B CN102825302 B CN 102825302B
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- pivoted housing
- microswitch
- goggle
- locating
- rotary sleeve
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Abstract
The invention discloses a double-microswitch protection system for bench drills, which comprises a shield with a first microswitch and a protective glass unit with a second microswitch, and the first microswitch is connected in series with the second microswitch; the protective glass unit comprises a fixed base board, a rotary sleeve holder, the second microswitch, an upper rotary sleeve, a lower rotary sleeve, a steel ball, a compressed spring, a set screw, a knob, a protective glass rod, a piece of protective glass and a cover plate; the second microswitch comprises a microswitch contact; the rotary sleeve holder is fixedly connected with the fixed base board; the outside of the upper rotary sleeve is provided with a positioning slot, which is matched with the steel ball; a boss is also provided with a lower positioning plane, the upper rotary sleeve is provided with an upper positioning plane and a positioning claw, and the positioning claw is matched with the raised plane of the rotary sleeve holder; the microswitch contact is mounted on the rotary sleeve holder, and the upper rotary sleeve is provided with a transitional plane, which is matched with the microswitch contact. When the shield or the protective glass is opened, the microswitches can be triggered to cut off power, so that a safety protection effect is achieved.
Description
Technical field
The present invention relates to a kind of electric tool accessory, be specifically related to a kind of double protecting device of the guard shield goggle band microswitch for bench drill.
Background technology
Existing bench drill, goggle is equipped with at drill bit place, in the time of bit change more, need turn off power supply and goggle is opened, and installs after drill bit, then by goggle playback opening power, then processes.In use there is following defect in this bench drill: first open and close power supply more loaded down with trivial details, secondly in the situation that operating personnel forget powered-down, maloperation meeting produces potential safety hazard.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of dual crack protective device of bench drill.
For achieving the above object, the technical solution used in the present invention is: a kind of dual crack protective device of bench drill, comprise the guard shield that the first microswitch is installed and the protective glass device that the second microswitch is installed, described the first microswitch and the second microswitch are in series; Protective glass device comprises fixed base plate, pivoted housing seat, the second microswitch, upper pivoted housing, lower pivoted housing, steel ball, stage clip, holding screw, handles knob, goggle bar, goggle and cover plate; Described the second microswitch comprises microswitch contact; Described pivoted housing seat is connected mutually with fixed base plate, and fixed base plate is connected mutually with bench drill casing; Described pivoted housing seat is provided with boss, and boss is provided with cylindrical hole, places successively steel ball, stage clip in cylindrical hole; Described upper pivoted housing outside is provided with locating slot, and locating slot and steel ball are suitable; On described boss, be also provided with lower locating surface, described upper pivoted housing is provided with locating surface and locating detent, and described upper locating surface and lower locating surface are suitable, and the raised face (RF) of described locating detent and pivoted housing seat is suitable; Described microswitch contact is arranged on pivoted housing seat, and described upper pivoted housing is provided with transition face, and transition face and microswitch contact are suitable; Described upper pivoted housing is provided with locating button, and described lower pivoted housing is provided with locating hole, and described locating button and locating hole are suitable, and the mating surface of described upper pivoted housing and lower pivoted housing and pivoted housing seat is that the face of cylinder, fits kind are matched in clearance; Described lower pivoted housing lower end is provided with the hole of handling knob, handle knob hole with handle knob suitable; Described goggle bar is connected mutually with goggle.
As preferably, described goggle bar upper end is provided with screwed hole, and the screw for goggle bar being fixed on to upper pivoted housing and lower pivoted housing is installed in described screwed hole, and the mating surface of described goggle bar and upper pivoted housing and lower pivoted housing is triangle square or with fillet.
As preferably, cylindrical hole on described boss is outside locks with an interior hexagonal holding screw, stops spring, steel ball.
As preferably, described cover plate is connected mutually with upper pivoted housing.
Beneficial effect: the present invention is on the bench drill of original almuce belt microswitch, increase the microswitch on goggle, two microswitch series connection, in opening guard shield or goggle, touch automatic cut-off power of microswitch, make operation easier, effectively avoided operator's danger that more maloperation of bit change brings in the time there is no powered-down simultaneously.
Brief description of the drawings
Fig. 1 is the fractionation structural representation of the goggle in the present invention;
The state diagram of bench drill when Fig. 2 is the goggle closure in the present invention;
Fig. 3 is the state diagram of the bench drill while opening of the goggle in the present invention;
The state diagram of microswitch contact and transition face cooperation position when Fig. 4 is the goggle closure in the present invention;
The cooperation schematic diagram of upper locating surface and lower locating surface when Fig. 5 is the goggle closure in the present invention;
Fig. 6 is the state diagram of microswitch contact and the transition face cooperation position while opening of the goggle in the present invention;
Fig. 7 is the cooperation schematic diagram of locating detent and the pivoted housing seat projection while opening of the goggle in the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the amendment of the various equivalent form of values of the present invention.
Refer to shown in Fig. 1 to Fig. 7, the present invention discloses a kind of dual crack protective device of bench drill, comprises the guard shield that the first microswitch is installed and the protective glass device that the second microswitch is installed, and described the first microswitch and the second microswitch are in series; Protective glass device comprises fixed base plate 1, pivoted housing seat 2, the second microswitch, upper pivoted housing 4, lower pivoted housing 5, steel ball 6, stage clip, holding screw, handle knob 7, goggle bar 8, goggle 9 and cover plate; Described the second microswitch comprises microswitch contact 3; Described pivoted housing seat 2 is connected mutually with fixed base plate 1, and fixed base plate 1 is connected mutually with bench drill casing; Described pivoted housing seat 2 is provided with boss, and boss is provided with cylindrical hole, places successively steel ball 6, stage clip in cylindrical hole; Described upper pivoted housing 4 outsides are provided with locating slot, and locating slot and steel ball 6 are suitable; On described boss, be also provided with lower locating surface 21, described upper pivoted housing 4 is provided with locating surface 41 and locating detent 44, and described upper locating surface 41 is suitable with lower locating surface 21, and described locating detent 44 is suitable with the raised face (RF) of pivoted housing seat 2; Described microswitch contact 3 is arranged on pivoted housing seat 2, and described upper pivoted housing 4 is provided with transition face 43, and transition face 43 is suitable with microswitch contact 3; Described upper pivoted housing 4 is provided with locating button 42, and described lower pivoted housing 5 is provided with locating hole 51, and described locating button 42 is suitable with locating hole 51, and described upper pivoted housing 4 and lower pivoted housing 5 are that the face of cylinder, fits kind are matched in clearance with the mating surface of pivoted housing seat 2; Described lower pivoted housing 5 lower ends are provided with the hole of handling knob, handle knob hole with handle knob 7 suitable; Described goggle bar 8 is connected mutually with goggle 9.
In the present embodiment, described goggle bar 8 upper ends are provided with screwed hole, screw for goggle bar 8 being fixed on to upper pivoted housing 4 and lower pivoted housing 5 is installed in described screwed hole, and described goggle bar 8 is triangle square or with fillet with the mating surface of upper pivoted housing 4 and lower pivoted housing 5.Cylindrical hole outside on described boss stops spring and steel ball with an interior hexagonal holding screw.Described cover plate is connected mutually with upper pivoted housing 4.
The present invention is in when work, when bench drill start work in the state shown in Fig. 2.Now guard shield closure, goggle 9 closures, upper locating surface 41 and lower locating surface 21 match, as shown in Figure 5.Because upper pivoted housing 4 and lower pivoted housing 5 is matched in clearance with pivoted housing seat 2, small vibrations may affect the mated condition of locating surface 41 and lower locating surface 21, so the present invention is provided with steel ball positioner, the position of matching at the upper and lower locating surface 41 of duty and the lower locating surface 21 of bench drill, steel ball 6 snaps in locating slot.Microswitch contact 3 now does not contact with upper pivoted housing 4, its state as shown in Figure 4, power supply opening, machine work.
When operating personnel need bit change more, or when having opened goggle 9 due to maloperation, goggle bar 8 drives lower pivoted housing 5, upper pivoted housing 4 and cover plate to rotate with goggle 9, and state has as shown in Figure 2 turned to the state shown in Fig. 3.Now guard shield closure, goggle 9 is opened, and separately, steel ball 6 and locating slot depart from for upper locating surface 41 and lower locating surface 21, upper pivoted housing 4 turns over certain angle, and transition face 43 turns over microswitch contact 3, and upper pivoted housing 4 is depressed microswitch contact 3, as shown in Figure 6, power-off, machine quits work.When upper pivoted housing 4, lower pivoted housing 5, goggle bar 8 turn to extreme position together with goggle 9, locating detent 44 contacts with the raised face (RF) of pivoted housing seat 2, as shown in Figure 7.
The second microswitch is "on" position under normal condition, when stressed closure, is off-position.
In the course of work of bench drill, open guard shield or goggle 9 can cause power-off, more effectively play safety protection function.
Claims (4)
1. a dual crack protective device for bench drill, is characterized in that: comprise the guard shield that the first microswitch is installed and the protective glass device that the second microswitch is installed, described the first microswitch and the second microswitch are in series; Protective glass device comprises fixed base plate (1), pivoted housing seat (2), the second microswitch, upper pivoted housing (4), lower pivoted housing (5), steel ball (6), stage clip, handle knob (7), goggle bar (8), goggle (9) and cover plate; Described the second microswitch comprises microswitch contact (3); Described pivoted housing seat (2) is connected mutually with fixed base plate (1), and fixed base plate (1) is connected mutually with bench drill casing; Described pivoted housing seat (2) is provided with boss, and boss is provided with cylindrical hole, places successively steel ball (6), stage clip in cylindrical hole; Described upper pivoted housing (4) outside is provided with locating slot, and locating slot and steel ball (6) are suitable; On described boss, be also provided with lower locating surface (21), described upper pivoted housing (4) is provided with locating surface (41) and locating detent (44), described upper locating surface (41) is suitable with lower locating surface (21), and described locating detent (44) is suitable with the raised face (RF) of pivoted housing seat (2); It is upper that described microswitch contact (3) is arranged on pivoted housing seat (2), and described upper pivoted housing (4) is provided with transition face (43), and transition face (43) is suitable with microswitch contact (3); Described upper pivoted housing (4) is provided with locating button (42), described lower pivoted housing (5) is provided with locating hole (51), described locating button (42) is suitable with locating hole (51), and described upper pivoted housing (4) and lower pivoted housing (5) are that the face of cylinder, fits kind are matched in clearance with the mating surface of pivoted housing seat (2); Described lower pivoted housing (5) lower end is provided with the hole of handling knob, and the hole of handling knob is suitable with handle knob (7); Described goggle bar (8) is connected mutually with goggle (9).
2. the dual crack protective device of bench drill according to claim 1; it is characterized in that: described goggle bar (8) upper end is provided with screwed hole; screw for goggle bar (8) being fixed on to upper pivoted housing (4) and lower pivoted housing (5) is installed in described screwed hole, and described goggle bar (8) is triangle square or with fillet with the mating surface of upper pivoted housing (4) and lower pivoted housing (5).
3. the dual crack protective device of bench drill according to claim 1, is characterized in that: the cylindrical hole on described boss is outside with an interior hexagonal holding screw locking.
4. the dual crack protective device of bench drill according to claim 1, is characterized in that: described cover plate is connected mutually with upper pivoted housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341262.5A CN102825302B (en) | 2012-09-14 | 2012-09-14 | Double-microswitch protection system for bench drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341262.5A CN102825302B (en) | 2012-09-14 | 2012-09-14 | Double-microswitch protection system for bench drills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102825302A CN102825302A (en) | 2012-12-19 |
| CN102825302B true CN102825302B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210341262.5A Active CN102825302B (en) | 2012-09-14 | 2012-09-14 | Double-microswitch protection system for bench drills |
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| CN (1) | CN102825302B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774589A (en) * | 2020-06-03 | 2020-10-16 | 广州市淞滨工程技术有限公司 | Perforating device with power-off protection function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004003323U1 (en) * | 2004-03-01 | 2004-07-01 | Maxion Werkzeuge Und Maschinen Gmbh | Safety protector on drilling machines etc comprises telescopic elements adjustable to length of drill and able to pivot sideways round drill axis to surround drill on three sides |
| CN2723085Y (en) * | 2003-09-18 | 2005-09-07 | 苏州宝时得电动工具有限公司 | Drill machine |
| CN102601411A (en) * | 2012-03-08 | 2012-07-25 | 扬州和益电动工具有限公司 | Gobe with vernier device for bench drill |
| CN102601394A (en) * | 2012-03-26 | 2012-07-25 | 徐州工业职业技术学院 | Safety protection device of common lathe |
| CN202861462U (en) * | 2012-09-14 | 2013-04-10 | 江苏金飞达电动工具有限公司 | Double micro-opening protective device of bench drill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7901164B2 (en) * | 2004-05-07 | 2011-03-08 | Skradski Thomas J | Debris shield for a rotary tool or machine |
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2012
- 2012-09-14 CN CN201210341262.5A patent/CN102825302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2723085Y (en) * | 2003-09-18 | 2005-09-07 | 苏州宝时得电动工具有限公司 | Drill machine |
| DE202004003323U1 (en) * | 2004-03-01 | 2004-07-01 | Maxion Werkzeuge Und Maschinen Gmbh | Safety protector on drilling machines etc comprises telescopic elements adjustable to length of drill and able to pivot sideways round drill axis to surround drill on three sides |
| CN102601411A (en) * | 2012-03-08 | 2012-07-25 | 扬州和益电动工具有限公司 | Gobe with vernier device for bench drill |
| CN102601394A (en) * | 2012-03-26 | 2012-07-25 | 徐州工业职业技术学院 | Safety protection device of common lathe |
| CN202861462U (en) * | 2012-09-14 | 2013-04-10 | 江苏金飞达电动工具有限公司 | Double micro-opening protective device of bench drill |
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| Publication number | Publication date |
|---|---|
| CN102825302A (en) | 2012-12-19 |
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