CN210880024U - Reciprocating saw functional head - Google Patents
Reciprocating saw functional head Download PDFInfo
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- CN210880024U CN210880024U CN201921302096.1U CN201921302096U CN210880024U CN 210880024 U CN210880024 U CN 210880024U CN 201921302096 U CN201921302096 U CN 201921302096U CN 210880024 U CN210880024 U CN 210880024U
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- saw blade
- guide wheel
- saw
- functional head
- connecting rod
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Abstract
The utility model provides a reciprocating saw functional head, which belongs to the technical field of reciprocating saws and comprises a shell, wherein an eccentric wheel turntable is arranged in the shell, a driving device is arranged to drive the eccentric wheel turntable to rotate, an eccentric convex part of the eccentric wheel turntable is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with the tail part of a saw blade, the eccentric wheel turntable rotates to drive the connecting rod to drive the saw blade to reciprocate, at least three guide wheels are arranged in the shell, a toothless part at the tail end of the saw blade is in contact with the guide wheels, wherein at least two guide wheels are arranged at the back side of the saw blade, at least one guide wheel is arranged at the edge side of the saw blade, the guide wheels are divided into a fixed guide wheel and a movable guide wheel, the movable guide wheel can be adjusted to approach the saw blade, and the locking structure is arranged to limit the position of the movable guide wheel, a plurality of plastic strips are arranged in the shell, the cross section of the shell is blocked by the plastic strips, and the plastic strips are tightly attached to the saw blade. The utility model discloses the heat production of saw blade in reciprocating motion process reduces, and has slowed down the wearing and tearing of saw blade, has prolonged saw blade life.
Description
Technical Field
The utility model relates to a reciprocating saw technical field, especially a reciprocating saw functional head.
Background
An electric reciprocating saw is an electric tool for sawing by a reciprocating saw blade, is one kind of electric saw and generally comprises a casing, a motor, a transmission mechanism, a cutter lifting mechanism, a saw blade, a switch and the like.
The reciprocating motion of the saw blade is realized by adopting the most common crank-connecting rod mechanism transmission, which converts the rotation of a crank into the reciprocating motion of a reciprocating rod on a straight line, a bearing and a gearwheel form the crank, one end of a connecting rod is connected with the reciprocating rod through a universal joint, and the other end of the connecting rod is connected with the crank; the motor drives the bull gear to rotate, and the reciprocating rod is driven to reciprocate back and forth through the connecting rod.
The spacing stopper that generally adopts of current electronic reciprocating saw to the saw blade, the saw blade can produce a large amount of heats at reciprocating motion's in-process, and the saw blade oxidation is very severe, will be worn and torn in the short time, has increased consumptive material cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem of current, provide a reciprocating saw functional head.
The purpose of the utility model can be realized by the following technical proposal: a functional head of reciprocating saw is composed of a casing, a rotary eccentric wheel with a drive unit for driving said rotary eccentric wheel to rotate, a connecting rod hinged to the convex part of said rotary eccentric wheel, a saw blade with another end hinged to tail of saw blade, and a connecting rod driven by said rotary eccentric wheel to reciprocate,
it is characterized in that the preparation method is characterized in that,
at least three guide wheels are arranged in the shell, bearings are arranged in the guide wheels, the toothless part at the tail end of the saw blade is in contact with the guide wheels, at least two guide wheels are positioned at the back side of the saw blade, at least one guide wheel is positioned at the edge side of the saw blade,
the guide wheel is divided into a fixed guide wheel and a movable guide wheel, the movable guide wheel can be adjusted towards the saw blade direction, and a locking structure is arranged to limit the position of the movable guide wheel,
the casing is internally provided with a plurality of plastic strips, the cross section of the casing is blocked by the plastic strips, and the plastic strips are tightly attached to the saw blade.
The locking structure comprises a bolt, and the guide wheel and the shell are connected in a bolt fastening mode.
The shell is provided with a hexagonal slotted hole and a regular hexagonal slotted hole, a bolt is inserted into the regular hexagonal slotted hole and is connected with the fixed guide wheel, a bolt is inserted into the hexagonal slotted hole and is connected with the movable guide wheel, and the bolt can slide in the hexagonal slotted hole.
The guide wheels are even in number, and the fixed guide wheels and the movable guide wheels are arranged on two sides of the saw blade in a group.
The plastic strip comprises a first-level plastic strip and a second-level plastic strip.
An elongated slot is formed in the opening of the shell, a primary plastic strip is inserted into the elongated slot, and the primary plastic strip is tightly attached to the saw blade and the shell.
The second grade plastic strip is the arc and distributes at the connecting rod front end, when the connecting rod rotated to parallel with the saw blade, the connecting rod had the interval with the second grade plastic strip, the second grade plastic strip closely laminates with saw blade and casing.
Two circular grooves are symmetrically arranged in the shell, the two circular grooves are arranged on two sides of the saw blade, and the fastener of the secondary plastic strip is inserted into the circular grooves.
The outside of the shell is provided with radiating fins, and the side edge of the shell is provided with a hook.
The guide wheel is a spool, and the saw blade is clamped between the spools.
Compared with the prior art, the utility model provides a be equipped with at least three leading wheels in the casing, be equipped with the bearing in the leading wheel, the toothless position of saw blade tail end contacts with the leading wheel, and the casing outside is equipped with radiating fin, makes the heat production of saw blade in reciprocating motion process reduce, and slowed down the wearing and tearing of saw blade, prolonged saw blade life; a plurality of plastic strips are arranged in the shell, and wood dust enters the shell in the plastic strip blocking operation process; the leading wheel divide into decides the leading wheel and moves the leading wheel, moves the leading wheel and can be close to the regulation to the saw blade direction, makes the saw blade assembly simpler, and adjustable movable leading wheel compresses tightly the saw blade when the saw blade takes place slight wearing and tearing.
Drawings
Fig. 1 is an internal structure diagram of the present invention.
Fig. 2 is an internal structure diagram of the present invention.
Fig. 3 is a back structure view of the present invention.
In the figure: 1. a connecting rod; 2. a circular groove; 3. a second-level plastic strip; 4. a hook; 5. a long groove; 6. a first-level plastic strip; 7. a saw blade; 8. a housing; 9. a guide wheel; 10. an eccentric wheel turntable; 11. a fastener; 12. an eccentric lobe; 13. a hexagonal slotted hole; 14. a movable guide wheel; 15. a right hexagonal slot; 16. a fixed guide wheel; 17. and (4) radiating fins.
Detailed Description
The invention is further described with reference to the following figures and examples.
Fig. 1-3 show that the utility model discloses a casing 8 is equipped with eccentric wheel carousel 10 in the casing 8, is equipped with drive arrangement drive eccentric wheel carousel 10 and rotates, and eccentric convex part 12 of eccentric wheel carousel 10 is articulated with 1 one end of connecting rod, and the connecting rod 1 other end is articulated with 7 afterbody of saw blade, and eccentric wheel carousel 10 rotates and drives connecting rod 1 drive saw blade 7 reciprocating motion.
Four guide wheels 9 are arranged in the shell 8, bearings are arranged in the guide wheels 9, the toothless part at the tail end of the saw blade 7 is in contact with the guide wheels 9, the guide wheels 9 are I-shaped wheels, the saw blade 7 is clamped in the middle of the I-shaped wheels, wherein two guide wheels 9 are arranged at the back side of the saw blade 7, two guide wheels 9 are arranged at the edge side of the saw blade 7, the guide wheel 9 is divided into a fixed guide wheel 16 and a movable guide wheel 14, the movable guide wheel 14 can be adjusted to approach the direction of the saw blade 7, and a locking structure is arranged to limit the position of the movable guide wheel 14, the locking structure comprises a bolt, the guide wheel 9 is tightly connected with the shell 8 through the bolt, the casing 8 is provided with a hexagonal long slotted hole 13 and a regular hexagonal slotted hole 15, a bolt is inserted into the regular hexagonal slotted hole 15 and is connected with a fixed guide wheel 16, the bolt is inserted into the hexagonal long slotted hole 13 and is connected with a movable guide wheel 14, the bolt can slide in the hexagonal long slotted hole 13, and the fixed guide wheel 16 and the movable guide wheel 14 are a group and are arranged at two sides of the saw blade 7.
A plurality of plastic strips are arranged in the shell 8, the cross section of the shell 8 is blocked by the plastic strips, the plastic strips are tightly attached to the saw blade 7, and the plastic strips comprise a primary plastic strip 6 and a secondary plastic strip 3; an elongated slot 5 is formed in an opening of the shell 8, a primary plastic strip 6 is inserted into the elongated slot 5, and the primary plastic strip 6 is tightly attached to the saw blade 7 and the shell 8; the secondary plastic strips 3 are arc-shaped and distributed at the front ends of the connecting rods 1, when the connecting rods 1 rotate to be parallel to the saw blades 7, the connecting rods 1 and the secondary plastic strips 3 have intervals, the secondary plastic strips 3 are tightly attached to the saw blades 7 and the shell 8, two circular grooves 2 are symmetrically arranged in the shell 8, the two circular grooves 2 are arranged at two sides of the saw blades 7, and fastening pieces 11 of the secondary plastic strips 3 are inserted into the circular grooves 2; the first-level plastic strip 6 and the second-level plastic strip 3 are used for preventing wood dust from entering the shell 8 in the wood sawing process.
The 8 outsides of casing are equipped with radiating fin 17, and 8 sides of casing are equipped with hook 4, and hook 4 can be handled the log twig of sawing.
The utility model discloses saw blade 7 has two kinds of different assembly methods:
firstly, a guide wheel 9 is fastened on a shell 8, a saw blade 7 is inserted between the guide wheels 9 from an opening of the shell 8, and the saw blade 7 is assembled with a connecting rod 1;
and secondly, the movable guide wheel 14 is outwards adjusted along the hexagonal long slotted hole 13, the saw blade 7 is inserted along the fixed guide wheel 16, the saw blade 7 is assembled with the connecting rod 1, and the movable guide wheel 14 is close to and adjusted towards the saw blade 7 along the hexagonal long slotted hole 13, so that the saw blade 7 is tightly contacted with the guide wheel 9.
When the saw blade 7 is worn in a small area after being used for a long time, the movable guide wheel 14 is adjusted to be close to the saw blade 7 along the hexagonal long slotted hole 13, so that the saw blade 7 is tightly contacted with the guide wheel 9.
All the embodiments are not limited to this, and the embodiments are only explained as specific examples of the above aspects of the invention.
Claims (10)
1. A functional head of reciprocating saw is composed of a casing, a rotary eccentric wheel with a drive unit for driving said rotary eccentric wheel to rotate, a connecting rod hinged to the convex part of said rotary eccentric wheel, a saw blade with another end hinged to tail of saw blade, and a connecting rod driven by said rotary eccentric wheel to reciprocate,
it is characterized in that the preparation method is characterized in that,
at least three rotatable guide wheels are arranged in the shell, the toothless part at the tail end of the saw blade is in contact with the guide wheels, wherein at least two guide wheels are positioned at the back side of the saw blade, at least one guide wheel is positioned at the edge side of the saw blade,
the guide wheel is divided into a fixed guide wheel and a movable guide wheel, the movable guide wheel can be adjusted towards the saw blade direction, and a locking structure is arranged to limit the position of the movable guide wheel,
the casing is internally provided with a plurality of plastic strips, the cross section of the casing is blocked by the plastic strips, and the plastic strips are tightly attached to the saw blade.
2. The reciprocating saw functional head according to claim 1, wherein the locking structure comprises a bolt, and the guide wheel and the housing are connected in a bolt-tight manner.
3. The functional head of a reciprocating saw as claimed in claim 2, wherein the housing has a hexagonal slot and a right hexagonal slot, the right hexagonal slot is inserted with a bolt and connected with the fixed guide wheel, the hexagonal slot is inserted with a bolt and connected with the movable guide wheel, and the bolt can slide in the hexagonal slot.
4. The functional head of a reciprocating saw as defined in claim 1, wherein said guide wheels are provided in an even number, and a set of fixed guide wheels and movable guide wheels are provided on both sides of the saw blade.
5. The reciprocating saw functional head according to claim 1, wherein the plastic strips comprise a primary plastic strip and a secondary plastic strip.
6. The functional head of a reciprocating saw as defined in claim 5, wherein the opening of the housing has a slot, and a primary plastic strip is inserted into the slot, the primary plastic strip being in close contact with the saw blade and the housing.
7. The functional head of a reciprocating saw as defined in claim 5, wherein the secondary plastic strip is curved and disposed at a front end of the connecting rod, and when the connecting rod is rotated to be parallel to the saw blade, the connecting rod is spaced from the secondary plastic strip, and the secondary plastic strip is closely attached to the saw blade and the housing.
8. The functional head of a reciprocating saw as defined in claim 7, wherein two circular grooves are symmetrically formed in the housing, the two circular grooves are formed on both sides of the saw blade, and the fastener of the secondary plastic strip is inserted into the circular grooves.
9. The functional head of a reciprocating saw as defined in claim 1, wherein the housing is provided with heat dissipating fins on the outside and hooks on the sides of the housing.
10. The functional head of a reciprocating saw of claim 1, wherein the guide wheel is a spool, and the saw blade is sandwiched between the spools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302096.1U CN210880024U (en) | 2019-08-12 | 2019-08-12 | Reciprocating saw functional head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302096.1U CN210880024U (en) | 2019-08-12 | 2019-08-12 | Reciprocating saw functional head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210880024U true CN210880024U (en) | 2020-06-30 |
Family
ID=71315914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921302096.1U Active CN210880024U (en) | 2019-08-12 | 2019-08-12 | Reciprocating saw functional head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210880024U (en) |
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2019
- 2019-08-12 CN CN201921302096.1U patent/CN210880024U/en active Active
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