CN202571474U - Novel manual steel saw - Google Patents
Novel manual steel saw Download PDFInfo
- Publication number
- CN202571474U CN202571474U CN 201220130424 CN201220130424U CN202571474U CN 202571474 U CN202571474 U CN 202571474U CN 201220130424 CN201220130424 CN 201220130424 CN 201220130424 U CN201220130424 U CN 201220130424U CN 202571474 U CN202571474 U CN 202571474U
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- CN
- China
- Prior art keywords
- saw
- bow
- saw blade
- saw bow
- arm
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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 provides a manual steel saw which comprises a saw bow and a saw blade, wherein the saw bow comprises a front arm and a rear arm; a semi-open and semi-closed dead-end tube is formed at the front part of the rear arm of the saw bow; a spring is arranged at the dead end in the dead-end tube; the rear part of the front arm of the saw bow is hermetically inserted in the dead-end tube, and compresses the spring in the dead-end tube; two ends of the saw blade are respectively connected with the front part of the front arm of the saw bow and the rear part of the rear arm of the saw bow; and the saw blade slightly moves in the extension direction of the saw blade under the action of a strong external force. According to the manual steel saw, the spring mounted on the saw bow is used for tightening the saw blade and reducing the influence on the saw blade caused by the impact of the external force, so that the saw blade is protected effectively.
Description
Technical field
The utility model relates to a kind of hardware & tools, specifically, relates to a kind of Arm saw.
Background technology
As everyone knows, this hardware & tools of Arm saw has obtained utilization widely in fields such as repair of machine, material cut.Fig. 1 is the structural representation of a common Arm saw.As shown in Figure 1, usually, common Arm saw 1 is made up of saw bow 2, saw blade 3 and saw handle 4, and wherein, the two ends of saw blade 3 are connected with two ends of saw bow 2, and saw handle 4 is fixed on the saw bow 2, is used to hand.Under situation about having, there is not saw handle 4 in the Arm saw 1, in use, the part of saw bow 2 can be used as saw handle, supplies hand-held usefulness.
In common Arm saw 1, saw bow mostly 2 is the fixing integral body of a structure, and the two ends of saw blade 3 form porose, and the two ends of saw bow 2 are provided with pin 6, inserts in the hole through making pin 6, and saw blade 3 hangs over the two ends of saw bow 2.End at saw bow 2 is provided with screw 7, so that 6 tensions of the pin that will hold, thereby with saw blade 3 tensions.
The advantage of common Arm saw shown in Figure 1 be simple in structure, cost is low and applied widely, its shortcoming is, when using for a long time, the screw 7 easy stripped threads of tension saw blade 3; And in use, because the saw bow 2 of Arm saw is a rigid unitary, when situation such as saw blade 3 gets stuck, saw blade 3 is fracture suddenly easily.
The utility model content
The utility model is made for solving the problems of the technologies described above, and its purpose is to provide a kind of novel Arm saw, and this Arm saw can reduce the saw blade possibility of fracture suddenly greatly.
To achieve these goals, the utility model provides a kind of Arm saw, and this Arm saw comprises saw bow and saw blade; Wherein, Said saw bow comprises saw bow forearm and saw bow postbrachium, and the front portion of this saw bow postbrachium forms the blind pipe of half-open semi-closure, and the cecum in this blind pipe is provided with spring; The driving fit ground, rear portion of this saw bow forearm inserts in the said blind pipe, and compresses the said spring in this blind pipe; And the two ends of said saw blade are connected with the front portion of said saw bow forearm and the rear portion of said saw bow postbrachium respectively, and this saw blade down can be slightly mobile along the saw blade bearing of trend in the effect of strong external force.
Preferably, said saw bow can be processed by stainless steel or galvanized steel.
According to an embodiment; Preferably, the two ends of said saw blade can be respectively equipped with the hole, and the rear portion of the front portion of said saw bow forearm and said saw bow postbrachium can be respectively equipped with pin; Through said pin is inserted in the said hole; The two ends of said saw blade are connected with the front portion of said saw bow forearm and the rear portion of said saw bow postbrachium respectively, and wherein, the size in the cross section of at least one said pin is less than the diameter in said hole.
Can know that from top description and practice the described Arm saw of the utility model is utilized in the spring of installing on the saw bow and strains saw blade and reduce the influence of external impacts to saw blade, thereby effectively protects saw blade.Because the screw that adopts spring to replace in the common Arm saw is strained saw blade, therefore, the problem that the screw in the common Arm saw is prone to stripped thread has not just existed.In addition,, therefore just cushioned the effect of external force widely under the effect of strong external force, made the unlikely unexpected fracture of saw blade saw blade because saw blade can slightly move along the saw blade bearing of trend.
Description of drawings
Fig. 1 is the structural representation of a common Arm saw; And
Fig. 2 is the structural representation of the described Arm saw of embodiment of the utility model.
In the accompanying drawings,
The common Arm saw of 1-; The 2-saw bow; The 3-saw blade; The 4-saw handle; The 6-pin; The 7-screw; The Arm saw of 100-the utility model; 21-saw bow forearm; The front portion of 21a-saw bow forearm; The rear portion of 21b-saw bow forearm; 22-saw bow postbrachium; The front portion of 22a-saw bow postbrachium; The rear portion of 22b-saw bow postbrachium; The 23-spring.
The specific embodiment
An embodiment of the described Arm saw of the utility model is described below with reference to accompanying drawing.Those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.In addition, in this manual, identical Reference numeral is represented same or analogous part.
Fig. 2 is the structural representation of the described Arm saw of embodiment of the utility model.As shown in Figure 2, the described Arm saw 100 of an embodiment of the utility model comprises saw bow and saw blade 3.Wherein, said saw bow comprises saw bow forearm 21 and saw bow postbrachium 22.The anterior 22a of saw bow postbrachium 22 forms the blind pipe of half-open semi-closure (promptly an end is worn-out mouthful, other end sealing), and the cecum in this blind pipe is provided with spring 23.The 21b driving fit ground, rear portion of saw bow forearm 21 inserts in the said blind pipe, and compresses the spring 23 in this blind pipe.The anterior 21a of saw bow forearm 21 and the rear portion 22b of saw bow postbrachium 22 are respectively equipped with pin 6.
The two ends of saw blade 3 are respectively equipped with the hole.Through the pin 6 on saw bow forearm 21 and the saw bow postbrachium 22 is inserted respectively in the hole at saw blade 3 two ends, the two ends of saw blade 3 are connected with the anterior 21a of saw bow forearm 21 and the rear portion 22b of saw bow postbrachium 22 respectively.In the present embodiment, the undersized in the cross section of at least one pin 6 is in the diameter in the hole at saw blade 3 two ends.
As shown in Figure 2, because saw bow forearm 21 makes the spring 23 in the saw bow postbrachium 22 produce compression, therefore, spring 23 has just been strained saw blade 3 through reaction force.Like this, spring 23 just can replace the screw (like the screw 7 of Fig. 1) that is used for straining saw blade 3 on the common Arm saw.The stripped thread phenomenon of the screw 7 that therefore, exists in the common Arm saw has not just existed.When saw blade 3 was installed, as long as slightly press saw bow forearm 21, the borehole jack that just can make saw blade 3 two ends unclamped saw bow forearm 21 then on the pin 6 at saw bow two ends, by spring 23 tension saw blades 3.
When using the described Arm saw 100 of the utility model, if the situation that gets stuck suddenly of saw blade for example, have very strong external force this moment so and act on the saw blade 3.Because the cross dimension of described at least one pin 6 of present embodiment is slightly less than the diameter in the hole at saw blade 3 two ends, therefore, saw blade 3 just has along the saw blade bearing of trend does slight space of moving.So this strong external force is compression spring 23 further, thereby saw blade 3 is slightly moved along its bearing of trend, like this, external force is just dissolved the impact of saw blade 3, finally makes saw blade 3 avoid unexpected fracture.
Should be noted that the coefficient of stiffiness of spring 23 can not be too little on the one hand, otherwise spring 23 just can not be strained saw blade 3, thereby saw blade 3 is in use fractureed more easily.On the other hand, the coefficient of stiffiness of spring 23 can not be too big, otherwise when external impacts saw blade 3, spring 23 deforms hardly, so just do not had the effect of buffering.The size of the coefficient of stiffiness of spring 23 will make and act on 3 last times of saw blade when the strong external force external force of saw blade 3 (promptly when saw blade 3 is fixed, be enough to fracture) that tangible distortion can take place spring 23.
In order to prevent that saw bow from deforming after long-time the use, saw bow can be processed by stainless steel or galvanized steel.
In the above embodiments, specifically described saw bow and be connected situation with saw blade.But the method for attachment of saw bow and saw blade is not limited to the foregoing description.Those of skill in the art are easy to expect other equivalent connection configuration.For example, the hole at saw blade 3 two ends can form horizontal prolate shape, does slight mobile thereby be convenient to saw blade 3 down with respect to pin 6 in the strong external force external force of saw blade 3 (promptly when saw blade 3 is fixed, be enough to fracture) effect.Again such as, pin 6 can be set under strong external force effect, can slightly move.Therefore; These equivalences connect the protection domain that configuration also belongs to the utility model; As long as with after the rear portion 22b of the anterior 21a of saw bow forearm 21 and saw bow postbrachium 22 is connected, this saw blade can be along slight mobile the getting final product of saw blade bearing of trend under the effect of strong external force respectively for the two ends of saw blade 3.
Can know that from top description and practice the described Arm saw of the utility model is utilized in the spring tension saw blade of installing on the saw bow and reduces the influence of external impacts to saw blade, thereby effectively protects saw blade.Because the screw that adopts spring to replace in the common Arm saw is strained saw blade, therefore, the problem that the screw in the common Arm saw is prone to stripped thread has not just existed.In addition,, therefore just cushioned the effect of external force widely under the effect of strong external force, made the unlikely unexpected fracture of saw blade saw blade because saw blade can slightly move along the saw blade bearing of trend.
It will be appreciated by those skilled in the art that the Arm saw that proposes for above-mentioned the utility model, can also on the basis that does not break away from the utility model content, make various improvement and combination.Therefore, the protection domain of the utility model should be confirmed by the content of appending claims.
Claims (3)
1. an Arm saw comprises saw bow and saw blade, it is characterized in that,
Said saw bow comprises saw bow forearm and saw bow postbrachium; Wherein, the front portion of said saw bow postbrachium forms the blind pipe of half-open semi-closure, and the cecum in this blind pipe is provided with spring; The driving fit ground, rear portion of said saw bow forearm inserts in the said blind pipe, and compresses the said spring in this blind pipe; And
The two ends of said saw blade are connected with the front portion of said saw bow forearm and the rear portion of said saw bow postbrachium respectively, and this saw blade can slightly move along the saw blade bearing of trend under the effect of strong external force.
2. Arm saw according to claim 1 is characterized in that,
Said saw bow is processed by stainless steel or galvanized steel.
3. Arm saw according to claim 1 is characterized in that,
The two ends of said saw blade are respectively equipped with the hole; The rear portion of the front portion of said saw bow forearm and said saw bow postbrachium is respectively equipped with pin; Through said pin is inserted in the said hole; The two ends of said saw blade are connected with the front portion of said saw bow forearm and the rear portion of said saw bow postbrachium respectively, and wherein, the size in the cross section of at least one said pin is less than the diameter in said hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130424 CN202571474U (en) | 2012-03-30 | 2012-03-30 | Novel manual steel saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130424 CN202571474U (en) | 2012-03-30 | 2012-03-30 | Novel manual steel saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571474U true CN202571474U (en) | 2012-12-05 |
Family
ID=47240926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220130424 Expired - Lifetime CN202571474U (en) | 2012-03-30 | 2012-03-30 | Novel manual steel saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191040A (en) * | 2014-09-12 | 2014-12-10 | 李欲晓 | Hacksaw |
| CN116690723A (en) * | 2023-08-04 | 2023-09-05 | 常州赫田新材料科技有限公司 | Cutting equipment convenient to receive material |
-
2012
- 2012-03-30 CN CN 201220130424 patent/CN202571474U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191040A (en) * | 2014-09-12 | 2014-12-10 | 李欲晓 | Hacksaw |
| CN116690723A (en) * | 2023-08-04 | 2023-09-05 | 常州赫田新材料科技有限公司 | Cutting equipment convenient to receive material |
| CN116690723B (en) * | 2023-08-04 | 2023-11-07 | 常州赫田新材料科技有限公司 | Cutting equipment convenient to receive material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |