CN202862252U - Electric jig saw - Google Patents
Electric jig saw Download PDFInfo
- Publication number
- CN202862252U CN202862252U CN 201220526391 CN201220526391U CN202862252U CN 202862252 U CN202862252 U CN 202862252U CN 201220526391 CN201220526391 CN 201220526391 CN 201220526391 U CN201220526391 U CN 201220526391U CN 202862252 U CN202862252 U CN 202862252U
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- CN
- China
- Prior art keywords
- motor
- reciprocating lever
- jig saw
- eccentric gear
- driving shaft
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Abstract
The utility model provides an electric jig saw and belongs to the technical field of electric tools. The electric jig saw solves the problem that a saw blade of an existing jig saw is not stable in movement. The electric jig saw comprises a base plate, a machine shell, a motor, an eccentric gear and a reciprocating lever, wherein the motor, the eccentric gear and the reciprocating lever are arranged in the machine shell. The eccentric gear is connected with a driving shaft of the motor, a saw blade is connected with the lower end of the reciprocating lever, and the driving rod is vertically arranged on one side, deviating from the center of the eccentric gear, of the eccentric gear. The reciprocating lever is driven to move up and down through the driving rod by the eccentric gear, a balancing block is arranged on the driving shaft of the motor in a sleeved mode, and the balancing block is provided with a driving hole and a limiting hole. The balancing block is arranged on the driving shaft of the motor through the limiting hole in a sleeved mode, the other side of the eccentric gear faces the balancing block and is provided with an eccentric convex block, and the convex block is arranged in the driving hole of the balancing block in a clamped mode. According to the electric jig saw, the balancing block is additionally added, and the balancing block moves cooperating with the reciprocating lever along the reverse direction in an up-down mode in a working process, so vibration is eliminated, and the movement of the reciprocating lever is enabled to be stable.
Description
Technical field
The utility model belongs to the electric tool technical field, relates to a kind of electric jig saw.
Background technology
Sweep-saw is the common tool in the timber process, and particularly in decoration industry during processing profiled member, it is indispensable specific purpose tool, so sweep-saw is widely used in the curvilinear cut that the abnormity such as timber, plastics make up.Although various electric jig saws occur in the market, the phenomenon such as its transmission mechanism is complicated, and saw blade motion is unstable, and the curvilinear cut effect is undesirable in use makes troubles to the operator.
Summary of the invention
The purpose of this utility model is for existing sweep-saw existing the problems referred to above in use, and has proposed a kind of reduction vibrations, improves the electric jig saw of Stability of blade.
The purpose of this utility model can realize by following technical proposal: a kind of electric jig saw, comprise base plate, casing and the motor that is arranged in the casing, eccentric wheel and reciprocating lever, eccentric wheel is connected with the driving shaft of motor, the lower end of reciprocating lever is connected with saw blade, a described eccentric lateral deviation vertically is provided with drive rod from its home position place, eccentric wheel drives reciprocating lever by this drive rod and moves up and down, it is characterized in that, be arranged with a balance weight on the described motor driving shaft, offer drive hole and spacing hole on the balance weight, balance weight is set on the driving shaft of motor by spacing hole, the eccentric wheel another side is to balance weight and be provided with eccentric projection, and projection is fastened in the drive hole of balance weight.
In above-mentioned a kind of electric jig saw, described spacing hole is bar shaped, and vertically arranges.
In above-mentioned a kind of electric jig saw, described projection is rounded, and the width of drive hole is greater than the projection diameter, and the height of drive hole and projection diameter are complementary.
In above-mentioned a kind of electric jig saw, described eccentric wheel and driving shaft engagement.
Compared with prior art, this electric jig saw has been set up balance weight, with reciprocating lever reverse routing motion one on the other, eliminates vibrations in the course of work, makes the motion of reciprocating lever more stable, thereby guarantees the stability of saw blade when cutting material.
Description of drawings
Fig. 1 is structural representation provided by the utility model.
Fig. 2 is the internal structure schematic diagram of this electric jig saw.
Fig. 3 is eccentric structural representation.
Fig. 4 is the structural representation of balance weight.
Among the figure, 1, base plate; 2, casing; 3, motor; 31, driving shaft; 4, eccentric wheel; 41, drive rod; 42, projection; 5, reciprocating lever; 6, saw blade; 7, balance weight; 71, drive hole; 72, spacing hole.
The specific embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As depicted in figs. 1 and 2, this electric jig saw comprises base plate 1, casing 2 and is arranged on motor 3, eccentric wheel 4 and reciprocating lever 5 in the casing 2, driving shaft 31 engagements of eccentric wheel 4 and motor 3, and the lower end of reciprocating lever 5 is connected with saw blade 6.
As shown in Figure 3, the front of eccentric wheel 4 vertically is provided with drive rod 41 departing from its home position place, and drive rod 41 is inserted in the hole of reciprocating lever 5, and the back side of eccentric wheel 4 is provided with round bump 42 at eccentric position, projection 42 and drive rod 41 be 180 ° opposed.
As shown in Figure 4, offer drive hole 71 and spacing hole 72 on the balance weight 7, spacing hole 72 and drive hole 71 are strip, and spacing hole 72 vertically arranges, and drive hole 71 is horizontally disposed with.Balance weight 7 is set in motor 3 driving shafts 31 by spacing hole 72 and is close on the eccentric wheel 4, and the projection 42 of eccentric wheel 4 is fastened in the drive hole 71, and the width of drive hole 71 is greater than projection 42 diameters, and the height of drive hole 71 and projection 42 diameters are complementary.
During work, the driving shaft 31 band movable eccentric wheels 4 of motor 3 rotate, eccentric wheel 4 will rotatablely move to become by drive rod 41 and drive the straight reciprocating motion of reciprocating lever 5 in perpendicular, reciprocating lever 5 drives saw blade 6 cuttings, and the projection 42 at eccentric wheel 4 back sides is with dynamic balance weight 7 to pump with eccentric wheel 4 rotations.Since projection 42 and drive rod 41 be 180 ° opposed, when reciprocating lever 5 moved upward, balance weight 7 moved downward; Otherwise.When reciprocating lever 5 moved downward, balance weight 7 moved upward, and both are counter motion all the time, eliminated vibrations, improved cutting stability.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. electric jig saw, comprise base plate (1), casing (2) and be arranged on motor (3) in the casing (2), eccentric wheel (4) and reciprocating lever (5), eccentric wheel (4) is connected with the driving shaft (31) of motor (3), the lower end of reciprocating lever (5) is connected with saw blade (6), one lateral deviation of described eccentric wheel (4) vertically is provided with drive rod (41) from its home position place, eccentric wheel (4) drives reciprocating lever (5) by this drive rod (41) and moves up and down, it is characterized in that, be arranged with a balance weight (7) on described motor (3) driving shaft (31), offer drive hole (71) and spacing hole (72) on the balance weight (7), balance weight (7) is set on the driving shaft (31) of motor (3) by spacing hole (72), eccentric wheel (4) another side is to balance weight (7) and be provided with eccentric projection (42), and projection (42) is fastened in the drive hole (71) of balance weight (7).
2. a kind of electric jig saw according to claim 1 is characterized in that, described spacing hole (72) is bar shaped, and vertically arranges.
3. a kind of electric jig saw according to claim 1 and 2 is characterized in that, described projection (42) is rounded, and the width of drive hole (71) is greater than projection (42) diameter, and the height of drive hole (71) and projection (42) diameter are complementary.
4. a kind of electric jig saw according to claim 1 and 2 is characterized in that, described eccentric wheel (4) and driving shaft (31) engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526391 CN202862252U (en) | 2012-10-15 | 2012-10-15 | Electric jig saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526391 CN202862252U (en) | 2012-10-15 | 2012-10-15 | Electric jig saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202862252U true CN202862252U (en) | 2013-04-10 |
Family
ID=48029004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526391 Expired - Fee Related CN202862252U (en) | 2012-10-15 | 2012-10-15 | Electric jig saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202862252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459032A (en) * | 2014-09-12 | 2016-04-06 | 苏州宝时得电动工具有限公司 | Power tool |
-
2012
- 2012-10-15 CN CN 201220526391 patent/CN202862252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459032A (en) * | 2014-09-12 | 2016-04-06 | 苏州宝时得电动工具有限公司 | Power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131015 |