CN2726777Y - Handsaw with instant changeable saw blade - Google Patents
Handsaw with instant changeable saw blade Download PDFInfo
- Publication number
- CN2726777Y CN2726777Y CN 200420090399 CN200420090399U CN2726777Y CN 2726777 Y CN2726777 Y CN 2726777Y CN 200420090399 CN200420090399 CN 200420090399 CN 200420090399 U CN200420090399 U CN 200420090399U CN 2726777 Y CN2726777 Y CN 2726777Y
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- CN
- China
- Prior art keywords
- saw blade
- rolling cover
- handsaw
- mode
- connecting rod
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a handsaw with an instant changeable saw blade, comprising a frame body molded in a pressure casting mode. The frame body is provided with a frame beam, a support arm, and a grip; the support arm is connected to a backward curved member through a pin shaft in a pin mode; the backward curved member can rotate in a radian mode regarding the pin shaft as a lower pivot point; the lower end of the frame body and the lower end of the backward curved member are respectively provided with a drawing nail; the inner wall of the grip is provided with symmetrical grip concave grooves which support a movable shaking cap provided with shaking cap projecting columns; the shaking cap is provided with symmetrical shaking cap projecting columns which are arranged in the symmetrical grip concave grooves in a matching mode, and accordingly, the shaking cap can rotate in a radian mode regarding the grip concave grooves as upper pivot points; a shaking cap circular hole is arranged on a middle rail which is connected in a span mode on the gap section of the shaking cap above the shaking cap projecting columns; the upper end section of the connecting rod in the grip is arranged in the shaking cap circular hole in a string mode, and the lower end section of the connecting rod is connected on a shoulder in a screw mode on the outward concave hole of the backward curved member embedded with a spring and tightly presses on the screw nut of the spring; the backward curved member is controlled to be exactly positioned through the compressing and the stretching of the spring, the changed saw blade can still clamp the drawing nail with weak force, and accordingly, the saw blade is changed without falling off.
Description
Technical field
The utility model relates to handsaw, particularly safe and efficient whenever and wherever possible replacing saw blade, and can when the position that runs into less dead angle or highly be restricted, also can make things convenient for the handsaw of the instantaneously changing saw blade of sawing.
Background technology
This hand tools of handsaw is generally used during the sawing material in repair of machine, assembling.Traditional handsaw is a steel design, handsaw wherein an end one screw and nut are arranged, play tension and unclamp the saw blade effect, when promptly not sharp or fracture need to be changed when saw blade, need unscrew nut, saw blade is got from handsaw, load onto new saw blade then, again with nut screwing clamping.Thereby when changing saw blade, a pine one is tight, and promptly trouble is time-consuming again.
The applying date is that " a kind of saw frame " (notification number is CN2508920 Y) of the Chinese utility model patent ZL01271894.7 in December 05 calendar year 2001 discloses the handsaw (seeing accompanying drawing 3) that a kind of hand saws material is used.Front end at saw frame (2) has a blind rivet (9), the other end has a circular seat (11), in the seat hole (12) is arranged, the front end of rolling cover (3) is connected with hole (12) by two protruded stigmas, in rolling cover (3), be provided with fulcrum (6), support brace (7) is provided with open slot, open slot is enclosed within on the fulcrum (6), and be welded with nut (5) in the upper end of groove, be provided with adjustment screw (4) in nut (5), the front end of support brace (7) passes the breach of rolling cover (3) bottom and stretches in the outside of saw frame (2), is provided with blind rivet (10) at its extension and forms, when changing or during the new clothes saw blade, only need to adjust adjustment screw (4), rolling cover (3) toward drop-down, is fixed on saw blade-holder on blind rivet (9) and (10) according to length of saw blade, then rolling cover (3) is upwards closed, can use.It is simple in structure, make things convenient for during use, save time, but operation is careless slightly when changing saw blade, can cause saw blade to come off, fall and hurt sb.'s feelings or the equipment that falls into causes mechanical breakdown, and the profile of this handsaw mostly be rectangle, run into the position that less dead angle is arranged or highly be restricted, just can not operation.
Summary of the invention
Technical problem to be solved in the utility model is the handsaw that the instantaneously changing saw blade of safe and efficient whenever and wherever possible replacing saw blade is provided at above-mentioned prior art deficiency.
Another technical problem to be solved in the utility model is at above-mentioned prior art deficiency, and the handsaw that can also can make things convenient for the instantaneously changing saw blade of sawing when the position that runs into less dead angle or highly be restricted is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the handsaw of instantaneously changing saw blade, comprise support body through casting forming, support body have set a roof beam in place, the handle of support arm and hollow; The support arm lower surface is connected with palintrope spare by bearing pin, and palintrope spare is that lower fulcrum can be done the radian rotation with the bearing pin; The support body lower end and the palintrope spare lower end of phase obvolvent place respectively are shaped on the blind rivet that is used to install saw blade, and the technical measures of taking comprise: the handle inwall is shaped on symmetrical handle groove; This handle groove supporting is shaped on the movable rolling cover of rolling cover protruded stigma, and rolling cover is a monolithic molding member, and the rolling cover protruded stigma matching seat that rolling cover is shaped on symmetry drops in the handle groove of symmetry, and making rolling cover is that last fulcrum can be done the radian rotation with the handle groove; Be positioned on the crosspiece of rolling cover notch part bridging of rolling cover protruded stigma top and be shaped on a rolling cover circular hole, the small end portion string that is positioned at handle is contained in this rolling cover circular hole, the connecting rod bottom then outside the palintrope spare that is embedded with spring shrinkage pool place line be connected on shoulder and be pressed on the nut of spring.
For optimizing technique scheme, the measure of being taked also comprises:
The profile that handsaw is set a roof beam in place becomes an acute angle with Front-end Design, as runs into less dead angle or during the position that highly is restricted, also can make things convenient for sawing; Above-mentioned setting a roof beam in place forms an acute angle between anterior ennation and saw blade bearing of trend support body lower end.
Wide for making it adaptive scope, the connecting rod bottom is passed the outer shrinkage pool line of palintrope spare and is connected on the nut; Also but the nut head passes the outer shrinkage pool line of palintrope spare and is connected on the described connecting rod bottom.
For guaranteeing the rotation of fulcrum radian flexibly; The handle groove is semicircle, and the rolling cover protruded stigma is for can mate the cylindrical of described handle groove.
For the handsaw overall appearance is coordinated, rolling cover have can with support body the upper end embedding and the outer rim of coincideing mutually.
Compared with prior art, the utility model is by being shaped on symmetrical handle groove at the handle inwall; This handle groove supporting is shaped on the movable rolling cover of rolling cover protruded stigma, and rolling cover is a monolithic molding member, and the rolling cover protruded stigma matching seat that rolling cover is shaped on symmetry drops in the handle groove of symmetry, and making rolling cover is that last fulcrum can be done the radian rotation with the handle groove; Be positioned on the crosspiece of rolling cover notch part bridging of rolling cover protruded stigma top and be shaped on a rolling cover circular hole, the small end portion string that is positioned at handle is contained in this rolling cover circular hole, the connecting rod bottom then outside the palintrope spare that is embedded with spring shrinkage pool place line be connected on shoulder and be pressed on the nut of spring, need only during use and regulate nut in advance, pack into behind the saw blade, only need rolling cover is pressed toward next, can make the saw blade tension in running order.Compression by spring and stretch and control the precise displacement of palintrope spare makes the saw blade of replacing still have faint strength to block blind rivet, changes saw blade and does not come off.The profile that handsaw is set a roof beam in place becomes an acute angle with Front-end Design, as when running into less dead angle or height and position and being restricted, also can make things convenient for sawing.
Description of drawings
Fig. 1 is the local cross-sectional structural representation of the utility model;
Fig. 2 is an equipped front schematic view among Fig. 1;
Fig. 3 is the equipped schematic diagram of existing patent.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 to Fig. 2 illustrates, and the handsaw of instantaneously changing saw blade comprises the support body 1 through casting forming, and support body 1 has the handle 1c of the 1a that sets a roof beam in place, support arm 1b and hollow; Support body 1 can be steel or aluminum or aluminum alloy structure; The profile that handsaw is set a roof beam in place becomes an acute angle with Front-end Design, as runs into less dead angle or during the position that highly is restricted, also can make things convenient for sawing; So form an acute angle between support body 1 lower end of anterior ennation of the 1a that sets a roof beam in place and saw blade 9 bearing of trends.Support body support arm 1b lower surface is connected with palintrope spare 6 by bearing pin 8, and palintrope spare 6 is that lower fulcrum can be done the radian rotation with bearing pin 8, and palintrope spare 6 is done the certain angle rotation along bearing pin 8 centers, to reach saw blade 9 degree of tightness functions; Support body 1 lower end and palintrope spare 6 lower ends of phase obvolvent place respectively are shaped on the blind rivet 7 that is used to install saw blade 9, and handle 1c inwall is shaped on symmetrical handle groove 1d; This handle groove 1d supporting is shaped on the movable rolling cover 2 of rolling cover protruded stigma 2a, rolling cover 2 is a monolithic molding member, the rolling cover protruded stigma 2a matching seat that rolling cover 2 is shaped on symmetry drops in the handle groove 1d of symmetry, and making rolling cover 2 is that last fulcrum can be done the radian rotation with handle groove 1d; Be positioned on the crosspiece of rolling cover notch part bridging of rolling cover protruded stigma 2a top and be shaped on a rolling cover circular hole 2b, flexible for guaranteeing the rotation of fulcrum radian; Handle groove 1d is semicircle, and rolling cover protruded stigma 2a is for can mate the cylindrical of described handle groove 1d.The connecting rod 3 upper ends string that is positioned at handle 1 is contained in this rolling cover circular hole 2b, connecting rod 3 bottoms then outside the palintrope spare 6 that is embedded with spring 5 shrinkage pool place line be connected on shoulder and be pressed on the nut 4 of spring 5, wide for making it adaptive scope, connecting rod 3 bottoms are passed palintrope spare 6 outer shrinkage pool lines and are connected on the nut 4; Also but nut 4 heads pass palintrope spare 6 outer shrinkage pool lines and are connected on connecting rod 3 bottoms.
When changing saw blade, as long as it is loosening and raise rolling cover 2, rolling cover 2 can handle groove 1d be that last fulcrum can be done the radian rotation promptly, and it is that last fulcrum is done the radian rotation with handle groove 1d also that the drive string is contained in this rolling cover circular hole 2b inside connecting rod 3 upper ends, thereby gives 3 one downward thrusts of connecting rod; And be positioned at the spring 5 at palintrope spare 6 outer shrinkage pool places, withstand and give 4 one downward thrusts of nut, therefore drive the connecting rod 3 that line is connected on the nut 4 and move down, thereby also give 3 one downward pulling force of connecting rod; It is that lower fulcrum is done the certain angle rotation with bearing pin 8 that the connecting rod 3 that moves down drives palintrope spare 6, to reach degree of tightness and to change saw blade 9 functions, connecting rod 3 moves down compression and the stretching that distance is controlled by spring 5 in design, thereby the precise displacement of control link 3 is controlled the displacement of palintrope spare 6, realize changing the saw blade saw blade and still have faint strength to block blind rivet 7, simultaneously also can more convenient replacing saw blade.
As long as regulate nut 4 in advance, behind the saw blade of packing into, only need rolling cover is pressed toward next during use, can make the saw blade tension in running order.It is changed, and saw blade is safe and efficient, applicability is strong.
Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (6)
1, the handsaw of instantaneously changing saw blade comprises the support body (1) through casting forming, and support body (1) has the handle (1c) of set a roof beam in place (1a), support arm (1b) and hollow; Support arm (1b) lower surface is connected with palintrope spare (6) by bearing pin (8), and palintrope spare (6) is that lower fulcrum can be done the radian rotation with bearing pin (8); The support body of phase obvolvent place (1) lower end and palintrope spare (6) lower end respectively are shaped on the blind rivet (7) that is used to install saw blade (9), it is characterized in that: described handle (1c) inwall is shaped on symmetrical handle groove (1d); This handle groove (1d) supporting is shaped on the movable rolling cover (2) of rolling cover protruded stigma (2a), rolling cover (2) is a monolithic molding member, rolling cover protruded stigma (2a) matching seat that rolling cover (2) is shaped on symmetry drops in the handle groove (1d) of symmetry, makes rolling cover (2) can do the radian rotation with handle groove (1d) for last fulcrum; Be positioned on the crosspiece of rolling cover notch part bridging of rolling cover protruded stigma (2a) top and be shaped on a rolling cover circular hole (2b), connecting rod (3) the upper end string that is positioned at handle (1) is contained in this rolling cover circular hole (2b), connecting rod (3) bottom then outside the palintrope spare that is embedded with spring (5) (6) shrinkage pool place line be connected on shoulder and be pressed on the nut (4) of spring (5).
2, the handsaw of instantaneously changing saw blade according to claim 1 is characterized in that: form an acute angle between support body (1) lower end of anterior ennation of described setting a roof beam in place (1a) and described saw blade (9) bearing of trend.
3, the handsaw of instantaneously changing saw blade according to claim 1 is characterized in that: described connecting rod (3) bottom is passed the outer shrinkage pool line of palintrope spare (6) and is connected on the described nut (4).
4, the handsaw of instantaneously changing saw blade according to claim 1 is characterized in that: described nut (4) head passes palintrope spare 6 outer shrinkage pool lines and is connected on described connecting rod (3) bottom.
5, according to the handsaw of the described instantaneously changing saw blade of the arbitrary claim of claim 1 to 4, it is characterized in that: described handle groove (1d) is for semicircle, and described rolling cover protruded stigma (2a) is for can mate the cylindrical of described handle groove (1d).
6, the handsaw of instantaneously changing saw blade according to claim 5 is characterized in that: described rolling cover have can with support body (1) the upper end embedding and the outer rim of coincideing mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090399 CN2726777Y (en) | 2004-09-23 | 2004-09-23 | Handsaw with instant changeable saw blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090399 CN2726777Y (en) | 2004-09-23 | 2004-09-23 | Handsaw with instant changeable saw blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2726777Y true CN2726777Y (en) | 2005-09-21 |
Family
ID=35042800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090399 Expired - Lifetime CN2726777Y (en) | 2004-09-23 | 2004-09-23 | Handsaw with instant changeable saw blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2726777Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335214C (en) * | 2004-09-23 | 2007-09-05 | 邬贤波 | Hand saw capable of instantaneously changing saw blade |
-
2004
- 2004-09-23 CN CN 200420090399 patent/CN2726777Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335214C (en) * | 2004-09-23 | 2007-09-05 | 邬贤波 | Hand saw capable of instantaneously changing saw blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040923 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040923 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20080402 Pledge (preservation): Preservation |