CN202895479U - Folding wall board saw - Google Patents
Folding wall board saw Download PDFInfo
- Publication number
- CN202895479U CN202895479U CN 201220518210 CN201220518210U CN202895479U CN 202895479 U CN202895479 U CN 202895479U CN 201220518210 CN201220518210 CN 201220518210 CN 201220518210 U CN201220518210 U CN 201220518210U CN 202895479 U CN202895479 U CN 202895479U
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- Prior art keywords
- saw blade
- handle
- saw
- alignment pin
- groove
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Abstract
The utility model discloses a folding wall board saw and overcomes the defect that a saw web of an existing wall board saw can not be hidden, so that the wall board saw is not convenient to carry and easily cuts a tool bag open. The folding wall board saw comprises a saw web and a handle. The saw web is hinged with the handle through a hinge shaft. A saw web containing groove is arranged in the handle. The saw web forms a first unfolding position and a second folding position by rotating around the hinge shaft. When the saw web is in the first unfolding position, the folding wall board saw is used for cutting. When the saw web is in the second folding position, the saw web is folded into the handle. The saw web rotates around the hinge shaft and is folded with the handle. After the saw web is folded, saw teeth are hidden in the saw web containing groove so that the saw is convenient to carry and does not cut a tool bag open. When the saw wed is folded, a positioning groove is matched with a positioning pin of the handle to lock the saw web tightly so that the saw web is prevented from rotating back by force and use safety is improved. The shape of the positioning groove and the positional relation between the positioning groove and the positioning pin enable the saw wed to be in a reverse rotation inclination and a self-locking state of the positioning pin is ensured.
Description
Technical field
The utility model relates to a kind of saw structure, the folding folding wallboard saw that also can play protection of especially a kind of energy.
Background technology
In the time of interior decoration, need to separate the room, at this moment can use wallboard, wallboard has the size of standard, can not adapt to whole body of wall fully, will cut apart wallboard when therefore fitting up.According to the requirement of design, also possibly perforate on wallboard is such as the position that reserves the wall cabinet.
During finishing, existing wallboard is cut apart the mode that mostly adopts cutting, and the instrument that uses large cutter and so on to have straight blade cuts, but this mode of operation is slow, and more serious to the wearing and tearing of blade.This instrument is generally all thinner, therefore not too conveniently exerts all one's strength, and operation inconvenience easily makes the cutter hub fracture, affects wallboard and cuts apart, and operating efficiency is lower.
Therefore people propose to come wallboard is cut apart with a kind of instrument with sawtooth, and for the ease of directly utilizing the perforate on wallboard of this instrument, the tip shape is processed in the end of the saw blade of this instrument, by the mode that pierces through saw blade is inserted in the wallboard.
Such as: Patent Office of the People's Republic of China has announced a CN301631408S patent on August 3rd, 2011, name is called the wallboard saw, and the side of saw blade has sawtooth, and the front end of saw blade has the tip.
But the strength of existing wallboard saw for guaranteeing to pierce through, saw blade and hand grip control are integral fixedly shape, and saw blade can not rotate and hiding relative to handle, and this just carries to the workman and has caused trouble, easily packaging bag or kit bag is isolated.
Summary of the invention
The utility model has solved existing wallboard saw can not hide saw blade, is inconvenient to carry and the easy defective that kit bag is isolated, and a kind of folding wallboard saw is provided, and the sawtooth section of saw blade can be hidden in the handle, is convenient for carrying, and also can not isolate kit bag.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of folding wallboard saw, comprise saw blade and the handle that is connected with saw blade, saw blade is hinged by jointed shaft and handle, be provided with the saw blade holding tank on the handle, saw blade rotates around jointed shaft and forms the first expanded position and the second reception position, be used for carrying out cutting work when saw blade is in the first expanded position, saw blade is received in the handle when saw blade is in the second reception position.Saw blade and handle are hinged, and saw blade closes up by jointed shaft rotational and handle, close up rear saw blade and are hidden in the saw blade holding tank, are convenient for carrying, and also can not isolate kit bag; The knife back is exposed to outside the saw blade holding tank, is convenient to launch to stretch saw blade in running order.
As preferably, be provided with locating slot on the periphery of the end that saw blade and handle are hinged, the knife back of locating slot and saw blade is perpendicular, be provided with the locking member that is compressed by flexible member by turning cylinder on the handle, on the locking member with alignment pin, when saw blade launched to be in the work shape, alignment pin snapped onto saw blade and handle formation locking in the locating slot.When saw blade launches, alignment pin snaps onto in the locating slot saw blade is locked, prevent the stressed revolution of saw blade, locking member promotes alignment pin and contacts with the periphery of saw blade hinged end all the time under the effect of flexible member, release could be deviate from alignment pin under the External Force Acting that only has in locating slot, under the effect of flexible member, alignment pin and locating slot are realized accurately location.
As preferably, when handle and saw blade locking, line direction between the axle center of alignment pin and the locking member turning cylinder axle center and alignment pin be subjected between the force direction shape in an angle, this angle so that the force direction that is subjected to of alignment pin be between the turning cylinder of the jointed shaft of saw blade and locking member.The design of this angle guarantees to be positioned at the state that is in self-locking in the stressed situation, automatically produces the trend of rotation to the jointed shaft direction of saw blade around the turning cylinder of locking member, further guarantees to use safety, prevents the saw blade revolution.
As preferably, when handle and saw blade locking, the line between the jointed shaft axle center of alignment pin axle center and saw blade and alignment pin be subjected to force direction perpendicular; Perhaps the relative jointed shaft of alignment pin is partial to turning cylinder one side.
As preferably, bottom being, locating slot is the V-arrangement of arcuation, the coefficient of friction between the corresponding alignment pin of the angle of V-arrangement and the saw blade, the V-arrangement angle is directly proportional with coefficient of friction.The V-arrangement of locating slot, assurance locating slot and alignment pin are accurately located, and can not produce the gap after the cooperation, reduce saw blade and rock, and the angle of V-arrangement mainly is to decide according to coefficient of friction, guarantees can not produce under the saw blade stressing conditions the also reliably self-locking of sliding.
As preferably, the hinged end of saw blade and handle is circular, is provided with groove near on the position of locating slot on the knife back of saw blade, and this groove is the continuity of described circle, and the end of this groove and locking member matches.This groove can prevent that the locking member end from contacting with the knife back of saw blade, so that alignment pin can not accurately be located with locating slot.
As preferably; be provided with the protection draw-in groove on the circumference of the end that saw blade and handle are hinged; be provided with the locking member with alignment pin on the handle; when the protection draw-in groove cooperates with alignment pin; saw blade and handle are in the bending state; the angle of bending is between saw blade and between handle closed up and saw blade and handle launch, the angle of bending guaranteed that sawtooth can not hurt hand.The protection draw-in groove cooperates with alignment pin and forms the second protection, especially alignment pin and locating slot disengagement, and when saw blade turned round, alignment pin snapped onto the protection draw-in groove, prevented from that saw blade is turned back to close up state, protected user's hand, played the effect of an insurance; Can increase simultaneously the quantity of the alignment pin on the locking member, in the time of can guaranteeing the fracture of the first alignment pin, the second alignment pin can play the safeguard protection effect.
As preferably, protect the width of draw-in groove greater than the diameter of alignment pin, form matched in clearance between protection draw-in groove and the alignment pin.Protection draw-in groove and alignment pin are matched in clearance, so that saw blade is in vibrating state when this protective position, can not use under this state by reminding user, guarantee safety.
As preferably, be provided with on the circumference of the end that saw blade is hinged and close up draw-in groove, be provided with the locking member with alignment pin on the handle, when saw blade and handle close up, close up draw-in groove and match with alignment pin.Close up draw-in groove and cooperate with alignment pin, saw blade can freely not rotate, and need to carry out release to locking member, adopts saw blade is launched, and guarantees safe to carry.
As preferably, the side of saw blade is provided with sawtooth, and the front end of saw blade is provided with the oblique sword with the tip, and the lateral cross section of saw blade is trapezoidal, and the thickness of the knife back one side is less than the thickness of sawtooth one side.The thickness of the knife back is little, and in perforate, the knife back can not be jammed, and is easy to use.
The beneficial effects of the utility model are: saw blade and handle are hinged, and saw blade closes up by jointed shaft rotational and handle, close up rear sawtooth and are hidden in the saw blade holding tank, are convenient for carrying, and also can not isolate kit bag; Be provided with locating slot on the saw blade, after saw blade launched, locating slot cooperated with alignment pin on the handle, locks saw blade, prevents the stressed revolution of saw blade, the raising safety in utilization; And the shape of locating slot and with the position relationship of alignment pin so that saw blade produces the trend of counter-rotating, guarantee that also alignment pin is in self-locking state simultaneously; Protection draw-in groove on the saw blade plays the effect of second protection.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is a kind of cutaway view of the utility model;
Fig. 3 is a kind of transverse sectional view of the utility model;
Fig. 4 is a kind of saw-blade structure schematic diagram of the utility model;
Fig. 5 is the structural representation of a kind of handle of the utility model;
Fig. 6 is the upward view of the utility model handle shown in Figure 5;
Fig. 7 is the cross-sectional end view of the utility model handle shown in Figure 5;
Fig. 8 is a kind of intermediate insurance view of the utility model;
Fig. 9 is a kind of view of closing up of the utility model;
Among the figure: 1, saw blade, 2, turning cylinder, 3, locking member, 4, handle, 5, jointed shaft, 6, sawtooth; 7, oblique sword, 8, mounting groove, 9, spring cavity, 10, spring, 11, the saw blade holding tank, 12, groove; 13, locating slot, 14, the protection draw-in groove, 15, close up draw-in groove, 16, projection, 17, alignment pin.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of folding wallboard saw (referring to accompanying drawing 1 accompanying drawing 2 accompanying drawings 3) comprises that handle 4 and handle are by the hinged saw blade 1 of jointed shaft 5.The side of saw blade is provided with sawtooth 6, and the front end of saw blade is provided with the oblique sword 7 with the tip, and the side of handle is provided with the saw blade holding tank 11 that can hold sawtooth, and sawtooth is hidden in the saw blade holding tank, and the knife back of saw blade is exposed to outside the saw blade holding tank.
One end place of the hinged saw blade of handle is provided with mounting groove 8(referring to accompanying drawing 5 accompanying drawings 6 accompanying drawings 7), pass through turning cylinder 2 hinged locking members 3 in the mounting groove.Locking member is flute profile, is fixed with inner sleeve in the groove, is fixed with alignment pin 17 between the two side of inner sleeve, and the other end of locking member is provided with spring cavity 9.The outer setting of locking member has anti-skidding burr.The position of the corresponding spring cavity in the bottom of handle mounting groove is provided with projection 16, is connected with spring 10 between spring cavity and the projection, and an end of spring is nested with on the projection.The saw blade holding tank of handle is trapezoidal shape, and the width of the opening of saw blade holding tank is greater than the width of saw blade holding tank inside, the saw blade holding tank at the width of handle tail end greater than the width at the handle front end.The position of the oblique sword of the corresponding saw blade of saw blade holding tank is arranged to skewed.
The lateral cross section of saw blade is trapezoidal, and the thickness of the knife back one side is provided with the handle hole of arch less than the thickness of sawtooth one side near the position of the knife back on the saw blade.The hinged end periphery of saw blade and handle is circular arc (referring to accompanying drawing 4); be provided with three grooves on the periphery of circular arc; three grooves are respectively locating slot 13, protection draw-in groove 14 and close up draw-in groove 15, and respectively the bending state of deployed condition, the saw blade of corresponding saw blade and saw blade close up state.The knife back of locating slot and saw blade is perpendicular, and when saw blade launched to be in the work shape, alignment pin snapped onto saw blade and handle formation locking in the locating slot, and this moment, saw blade was in the first expanded position.Locating slot is the bottom and is the V-arrangement of arcuation, the coefficient of friction between the corresponding alignment pin of the angle of V-arrangement and the saw blade, and the V-arrangement angle is directly proportional with coefficient of friction.When saw blade launches rear and handle locking, line direction between the axle center of alignment pin 17 and locking member turning cylinder 2 axle center and alignment pin be subjected between the force direction shape in an angle, this angle so that the force direction that is subjected to of bayonet lock be between the turning cylinder of the jointed shaft of saw blade and locking member.During the locking of handle and saw blade, the line between the jointed shaft axle center of alignment pin axle center and saw blade and alignment pin be subjected to force direction perpendicular.Be provided with groove 12 near on the position of locating slot on the knife back of saw blade, this groove is the continuity of described circle, and the end of this groove and locking member 3 matches.When protection draw-in groove 14 cooperated with alignment pin, saw blade and handle were in bending state (referring to accompanying drawing 8), and this bending state is 90 °, and this state is the intermediate insurance state that wallboard is sawed.The width of protection draw-in groove forms matched in clearance greater than the diameter of alignment pin between protection draw-in groove and the alignment pin.When saw blade and handle close up, close up draw-in groove 15 and match with alignment pin by (referring to accompanying drawing 9), this moment, saw blade was in the second reception position.After saw blade closed up, sawtooth was hidden in the saw blade holding tank, and tiltedly sword is over against the skewed position of saw blade holding tank.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (10)
1. a folding wallboard is sawed, comprise saw blade (1) and the handle that is connected with saw blade (4), it is characterized in that saw blade passes through jointed shaft (5) and is hinged with handle, be provided with saw blade holding tank (11) on the handle, saw blade rotates around jointed shaft and forms the first expanded position and the second reception position, be used for carrying out cutting work when saw blade is in the first expanded position, saw blade is received in the handle when saw blade is in the second reception position.
2. folding wallboard according to claim 1 is sawed, it is characterized in that being provided with locating slot (13) on the periphery of the end that saw blade and handle are hinged, the knife back of locating slot and saw blade is perpendicular, be provided with the locking member (3) that is compressed by flexible member by turning cylinder on the handle, on the locking member with alignment pin (17), when saw blade launched to be in the work shape, alignment pin snapped onto saw blade and handle formation locking in the locating slot.
3. folding wallboard according to claim 2 is sawed, when it is characterized in that the locking of handle and saw blade, line direction between the axle center of alignment pin and the locking member turning cylinder axle center and alignment pin be subjected between the force direction shape in an angle, this angle so that the force direction that is subjected to of alignment pin be between the turning cylinder of the jointed shaft of saw blade and locking member.
4. folding wallboard saw according to claim 2, when it is characterized in that handle and saw blade are locked, the line between the jointed shaft axle center of alignment pin axle center and saw blade and alignment pin be subjected to force direction perpendicular; Perhaps the relative jointed shaft of alignment pin is partial to turning cylinder one side.
5. according to claim 2 or 3 or 4 described folding wallboards saws, it is characterized in that locating slot is the bottom and be the V-arrangement of arcuation, the angle correspondence alignment pin of V-arrangement and the coefficient of friction between the saw blade, the V-arrangement angle is directly proportional with coefficient of friction.
6. folding wallboard according to claim 5 is sawed, it is characterized in that the hinged end of saw blade and handle is for circular, be provided with groove (12) near on the position of locating slot on the knife back of saw blade, this groove is the continuity of described circle, and the end of this groove and locking member matches.
7. folding wallboard according to claim 1 and 2 is sawed; it is characterized in that being provided with on the circumference of the end that saw blade and handle are hinged protection draw-in groove (14); be provided with the locking member with alignment pin on the handle; when the protection draw-in groove cooperates with alignment pin; saw blade and handle are in the bending state; the angle of bending is between saw blade and between handle closed up and saw blade and handle launch, the angle of bending guaranteed that sawtooth can not hurt hand.
8. folding wallboard saw according to claim 7 is characterized in that protecting the width of draw-in groove greater than the diameter of alignment pin, forms matched in clearance between protection draw-in groove and the alignment pin.
9. folding wallboard saw according to claim 1 and 2 is characterized in that being provided with on the circumference of the end that saw blade is hinged and closes up draw-in groove (15), is provided with the locking member with alignment pin on the handle, when saw blade and handle close up, closes up draw-in groove and matches with alignment pin.
10. folding wallboard saw according to claim 1 is characterized in that the side of saw blade is provided with sawtooth (6), and the front end of saw blade is provided with the oblique sword (7) with the tip, and the lateral cross section of saw blade is trapezoidal, and the thickness of the knife back one side is less than the thickness of sawtooth one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518210 CN202895479U (en) | 2012-10-10 | 2012-10-10 | Folding wall board saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518210 CN202895479U (en) | 2012-10-10 | 2012-10-10 | Folding wall board saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202895479U true CN202895479U (en) | 2013-04-24 |
Family
ID=48116189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220518210 Expired - Fee Related CN202895479U (en) | 2012-10-10 | 2012-10-10 | Folding wall board saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202895479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950110A (en) * | 2014-04-18 | 2014-07-30 | 常熟市奇冠模塑有限公司 | Multifunctional saw |
-
2012
- 2012-10-10 CN CN 201220518210 patent/CN202895479U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950110A (en) * | 2014-04-18 | 2014-07-30 | 常熟市奇冠模塑有限公司 | Multifunctional saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170428 Address after: The foreign Integrated Development Zone South Haining agriculture of Jiaxing city in Zhejiang province 314423 Patentee after: ZHEJIANG JUXING TOOL CO., LTD. Address before: 310019 Jianggan District economic and Technological Park, Zhejiang, No. nine Ring Road, No. 35 Patentee before: Hangzhou GreatStar Industrial Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20201010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |