CN114055571B - Dual-purpose hand saw of cutting saw - Google Patents
Dual-purpose hand saw of cutting saw Download PDFInfo
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- CN114055571B CN114055571B CN202111436939.9A CN202111436939A CN114055571B CN 114055571 B CN114055571 B CN 114055571B CN 202111436939 A CN202111436939 A CN 202111436939A CN 114055571 B CN114055571 B CN 114055571B
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- saw
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- saw blade
- saw frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
- B27C9/005—Multi-purpose machines; Universal machines; Equipment therefor portable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G3/00—Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses a dual-purpose hand saw for cutting and sawing, which belongs to the technical field of hand saws and comprises a saw blade, a Jiong-shaped saw frame and a handle arranged at the rear part of the saw frame; a blade is arranged in the saw frame; the saw blade is characterized in that one side of the saw blade, which is far away from the sawteeth, is provided with a positioning groove which is clamped and positioned with the cutting edge of the blade, the front end of the saw blade is rotatably connected with the lower end of the front part of the saw frame, the rear end of the saw blade is provided with a clamping hook, and the rear part of the saw frame is provided with a locking mechanism which is clamped and locked with the clamping hook. The locking mechanism enables the saw blade to be clamped and attached to the lower edge of the blade, and the saw blade is supported and positioned through the blade, so that the bending deformation of the saw blade in the sawing operation is avoided, the service life of the saw blade and the quality of the sawing operation are ensured, the operation efficiency is improved, and the use safety is ensured; and through dismantling the saw blade, can directly use the blade to realize cutting, the operation of chopping, the function is various, improves variety and the convenience of using.
Description
Technical Field
The invention belongs to the technical field of hand saws, and particularly relates to a dual-purpose hand saw for cutting and sawing.
Background
The hand saw is a common tool, and can rapidly saw off materials through the saw teeth on the saw blade, and is commonly used for processing wood.
In the timber processing process, the hand saw can only realize the sawing operation of the timber usually, and the function is single.
The traditional handsaw saw blade is connected with a saw frame through screws, and the saw blade is straightened through the tightness adjusted by the screws on the opposite side; in the process of pressing down the saw blade, the middle of the saw blade is suspended, so that the saw blade is easy to bend and deform under stress, even the saw blade is broken, and the saw mouth is easy to incline, so that the cutting quality is reduced, and the operating efficiency of the handsaw is influenced.
On the other hand, when the wood is subjected to the sawing process, a large amount of wood chips are generated, and great influence is generated on operators.
Disclosure of Invention
In order to solve the problems, the invention provides the dual-purpose hand saw for cutting and sawing, which has the functions of cutting and sawing and is convenient and fast to use; and in the operation of the drag saw, the blades support and position the saw blades, so that the stress bending of the saw blades is effectively avoided, the operation quality is ensured, and the operation efficiency is improved.
The invention is realized by the following technical scheme:
a dual-purpose hand saw for cutting and sawing comprises a saw blade, a Jiong-shaped saw frame and a handle arranged at the rear part of the saw frame; a blade is arranged in the saw frame; the saw blade is characterized in that one side of the saw blade, which is far away from the sawteeth, is provided with a positioning groove which is clamped and positioned with the cutting edge of the blade, the front end of the saw blade is rotatably connected with the lower end of the front part of the saw frame, the rear end of the saw blade is provided with a clamping hook, and the rear part of the saw frame is provided with a locking mechanism which is clamped and locked with the clamping hook.
The invention is further improved in that the section of the positioning groove is V-shaped, and the inner side of the positioning groove is covered with a protective layer.
The invention is further improved in that the lower end of the front part of the saw frame is provided with two oppositely arranged positioning plates, and the front end of the saw frame is clamped between the two positioning plates and is rotatably installed by inserting and combining positioning bolts.
The invention further improves that the locking mechanism comprises a rotating frame, a connecting shaft and a connecting rod; the rotating frame is of a V-shaped bending structure, and the bending part of the rotating frame is rotationally connected with the saw frame through a rotating shaft; one end of the rotating frame is rotatably connected with the connecting rod through a connecting shaft, and one end of the connecting rod, which is far away from the rotating frame, is provided with a clamping shaft which is clamped and positioned with the clamping hook; and the saw frame is provided with a limiting part for limiting the rotation limiting position of the rotating frame.
The invention is further improved in that a groove is formed in the rear part of the saw frame, and a limiting part for limiting the rotation of the rotating frame is formed on the front side wall of the groove.
The invention further improves that a handle is arranged at one end of the rotating frame far away from the connecting shaft.
The invention is further improved in that the clamping shaft is provided with a limiting block for limiting the clamping hook in the left-right direction.
The invention is further improved in that an air duct with the same shape as the saw frame is arranged in the saw frame; an air suction opening communicated with the air duct is formed in the rear side of the front part of the saw frame, and a discharge opening is formed in the lower end of the front side of the front part of the saw frame; an air outlet is formed in the front side of the rear part of the saw frame; a fan is arranged in the air duct.
The invention is further improved in that the air outlet is inclined in a front-low and back-high manner, and the air suction inlet is inclined in a front-high and back-low manner.
The invention further improves the structure that a filtering device is arranged on one side of the fan close to the air suction opening, and a first baffle and a second baffle for stopping sawdust are arranged on the upper side of the air suction opening.
According to the technical scheme, the invention has the beneficial effects that:
the whole structure is simple, and the practicability is good. Locking mechanism makes the attached edge under the blade of saw blade block, supports the location through the blade to the saw blade, avoids saw blade bending deformation in the drag saw operation, guarantees the life of saw blade and the quality of drag saw operation, improves the operating efficiency, guarantees the security of using. And through dismantling the saw blade, can directly use the blade to realize cutting, the operation of chopping, the function is various, improves variety and the convenience of using.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the description will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a second directional structural diagram of the embodiment of the present invention.
Fig. 3 is a third directional structural diagram according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a blade and a saw blade according to an embodiment of the present invention.
FIG. 5 is a schematic view of an air duct arrangement according to an embodiment of the present invention.
In the drawings: 1. saw frame, 2, blade, 3, saw blade, 31, constant head tank, 32, pothook, 4, handle, 5, locking mechanism, 51, connecting rod, 52, revolving rack, 53, pivot, 54, connecting shaft, 55, handle, 56, card axle, 57, stopper, 6, inlet scoop, 7, air outlet, 8, first baffle, 9, second baffle, 10, filter equipment, 11, fan, 12, wind channel, 13, recess, 14, escape orifice, 15, shutoff stopper, 16, locating plate, 17, positioning bolt, 18, anticollision piece, 19, shift knob.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments in this patent without making creative efforts, shall fall within the protection scope of this patent.
As shown in FIGS. 1-4, the invention discloses a dual-purpose hand saw for cutting and sawing, comprising a bar-shaped saw blade 3, a Jiong-shaped saw frame 1 and a handle 4 arranged at the rear part of the saw frame 1; the Jiong-shaped saw frame 1 comprises an upright front part, a horizontal middle part and an upright rear part; the blade 2 is fixedly arranged on the inner side of the saw frame 1, and the cutting edge of the blade 2 faces downwards; the upper side of the saw blade 3 is provided with a positioning groove 31 which is clamped and positioned with the cutting edge of the blade 2, the front end of the saw blade 3 is rotatably connected with the lower end of the front part of the saw frame 1, the rear end of the saw blade 3 is provided with a clamping hook 32, and the rear part of the saw frame 1 is provided with a locking mechanism 5 which is clamped and locked with the clamping hook 32.
The locking mechanism 5 with backward upward tensile force enables the saw blade 3 to be clamped and attached to the lower edge of the blade 2, the blade 2 supports and positions the saw blade 3, the saw blade 3 is prevented from bending and deforming in the drag saw operation, the service life of the saw blade 3 and the quality of the drag saw operation are guaranteed, the operation efficiency is improved, and the use safety is guaranteed. And through dismantling saw blade 3, can directly use blade 2 to realize cutting, the operation of chopping, the function is various, improves variety and the convenience of using. The whole structure is simple, and the practicability is good.
The grip 4 comprises a horizontal chopping grip and a vertical push-pull grip. The convenience of the chopping operation using the blade 2 and the sawing operation using the saw blade 3 is realized.
As shown in fig. 1-3, the handle 4 and the rear portion of the saw frame 1 form a closed square structure. Has higher structural strength and ensures the use reliability.
As shown in fig. 4, the positioning groove 31 has a V-shaped cross section, and a protective layer is covered on the inner side of the positioning groove. The cutting edge of the blade 2 is inserted into the V-shaped positioning groove 31, and the tightness of the attachment is improved through the protective layer, so that the reliable and stable supporting effect of the blade 2 on the saw blade 3 is ensured.
As shown in fig. 3, two positioning plates 16 are arranged at the lower end of the front part of the saw frame 1, the two positioning plates 16 are arranged oppositely left and right, and the front end of the saw frame 1 is clamped between the two positioning plates 16 and is rotatably mounted by inserting and combining positioning bolts 17. The positioning bolt 17 penetrates through the positioning plate 16 and the round hole at the front end of the saw blade 3 in a sliding mode and is locked through the nut, and therefore reliable rotating connection of the front end of the saw blade 3 can be achieved.
As shown in fig. 2-3, the locking mechanism 5 comprises a rotating frame 52, a connecting shaft 54 and a connecting rod 51; the rotating frame 52 is of a V-shaped bent structure, and the bent part of the rotating frame is rotatably connected with the rear part of the saw frame 1 through a rotating shaft 53; the lower end of the rotating frame 52 is rotatably connected with the connecting rod 51 through a connecting shaft 54, the lower end of the connecting rod 51 is provided with a clamping shaft 56 which is clamped and positioned with the clamping hook 32, and the clamping hook 32 is of a downward-bent arc structure; the saw frame 1 is provided with a limiting part for limiting the rotation limit position of the rotating frame 52. The rotating frame 52 rotates anticlockwise, the upper end of the connecting rod 51 is driven to be pulled backwards and upwards through the connecting shaft 54, and when the rotating shaft 53 is positioned on a connecting line of the connecting shaft 54 and the clamping shaft 56, the saw blade 3 has the maximum tension; at this time, the rotating frame 52 continues to rotate counterclockwise by a small angle, and is abutted against and limited by the limiting piece and the rotating frame 52, so that the saw blade 3 is firmly locked and positioned, and the saw blade 3 is tensioned in the length direction and stably supported by the blade 2 on the saw blade 3.
As shown in fig. 2 to 3, the rotating frames 52 and the connecting rods 51 are arranged in pairs and are arranged in bilateral symmetry with respect to the saw frame 1, so as to effectively ensure the structural stability of the locking mechanism 5 and the firmness of locking the saw blade 3.
As shown in fig. 1, 2, 3, and 5, grooves 13 are formed in the left and right sides of the rear portion of the saw frame 1, and a limiting member for limiting the rotation of the rotating frame 52 is formed on the front side wall of each groove 13. The two connecting rods 51 and the two rotating frames 52 are arranged in the groove 13, so that the space occupation is saved, and the size is small; the front side wall of the groove 13 is abutted and limited on the rotating frame 52, so that the locking reliability of the locking mechanism 5 on the saw blade 3 is ensured.
As shown in fig. 2-3, a handle 55 is arranged at one end of the rotating frame 52 far from the connecting shaft 54, the handle 55 is connected with the end parts of the two rotating frames 52, and the rotating frame 52 can be conveniently pushed, pulled and rotated by the handle 55, so that the convenience of operation is ensured; and the structural stability of the two rotating frames 52 is improved.
As shown in fig. 3, the two limit blocks 57 are sleeved on the clamping shaft 56, and a notch engaged with the hook 32 is formed between the two limit blocks 57, so that the accurate limit of the left and right positions of the hook 32 is realized, the clamping of the hook 32 on the middle position of the clamping shaft 56 is ensured, and the balance of the left and right stress of the clamping shaft 56 is ensured.
When the saw blade 3 is detached and then is hacked and cut, a pressing block can be clamped and locked between the clamping shaft 56 and the lower end of the rear part of the saw frame 1, the locking mechanism 5 is ensured to be in a locking state, and the normal operation is prevented from being influenced by shaking.
As shown in fig. 5, an air duct 12 with a shape consistent with that of the saw frame 1 is arranged inside the saw frame; an air suction opening 6 communicated with an air duct 12 is formed in the rear side of the front part of the saw frame 1, and a discharge opening 14 for discharging sawdust is formed in the lower end of the front side of the front part of the saw frame; an air outlet 7 is formed in the front side of the rear part of the saw frame 1; the fan 11 is arranged in the middle of the air duct 12. Rotate through fan 11, provide the wind-force after the past and flow, at the chain saw in-process, blow forward the saw-dust through air outlet 7, absorb the collection to the saw-dust through inlet scoop 6 to discharge through 14 landing of escape orifice, can effectively realize the clearance to the saw-dust, avoid the saw-dust to rear portion operator's influence. Wherein the drain opening 14 can be closed by means of a closure plug 15 when not in use.
As shown in fig. 5, the air outlet 7 is inclined in a front-low and rear-high manner, and the air suction opening 6 is inclined in a front-high and rear-low manner. And the air outlet 7 and the air suction opening 6 are both in a gradually reducing shape along the wind direction. The good saw dust of the saw position of guaranteeing to pull is clear away, reduces the influence to the operation personnel.
As shown in fig. 5, a filter device 10 is disposed at the front side of the fan 11, a filter screen is disposed in the filter device 10, and the filter device 10 is slidably inserted into the air duct 12 from top to bottom and locked. The upper side of the air suction opening 6 is provided with a first baffle 8 and a second baffle 9 for stopping the wood chips. The first baffle 8 and the second baffle 9 are reasonably arranged in an inclined manner, so that the sawdust can be effectively blocked and can slide down from the discharge hole 14 at the lower end as far as possible; the filter screen on the filter device 10 blocks and filters tiny saw dust, avoids the saw dust to exert an influence on the fan 11, avoids exerting an influence on the operating personnel at the rear part, and guarantees the safety of use.
As shown in fig. 5, the handle 4 is provided with a switch button 19 for controlling the on/off, rotation speed, and forward/reverse rotation of the fan 11.
When the adsorbed saw-dust is too much on filter equipment 10, accessible shift knob 19 control fan 11 reversal, realize carrying out the back-blowing clearance to the filter screen on filter equipment 10, guarantee the life of filter screen. After long-term use, the filter device 10 can be drawn out upwards to replace the filter screen.
As shown in fig. 1, 2 and 5, the saw frame 1 is provided with an anti-collision block 18 at the front upper corner position. Through the shock absorption and buffering of the anti-collision block 18, the collision and damage to the saw frame 1 in the drag saw operation are avoided, and the safety is good.
The dual-purpose hand saw for cutting and sawing has simple integral structure and good practicability. Locking mechanism makes the attached edge under the blade of saw blade block, supports the location through the blade to the saw blade, avoids saw blade bending deformation in the drag saw operation, guarantees the life of saw blade and the quality of drag saw operation, improves the operating efficiency, guarantees the security of using. And through dismantling the saw blade, can directly use the blade to realize cutting, the operation of chopping, the function is various, improves variety and the convenience of using.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A dual-purpose hand saw for cutting and sawing is characterized by comprising a saw blade (3), a Jiong-shaped saw frame (1) and a handle (4) arranged at the rear part of the saw frame (1); a blade (2) is arranged in the saw frame (1); a positioning groove (31) which is clamped and positioned with the cutting edge of the blade (2) is formed in one side, away from the sawteeth, of the saw blade (3), the front end of the saw blade (3) is rotatably connected with the lower end of the front part of the saw frame (1), a clamping hook (32) is arranged at the rear end of the saw blade (3), and a locking mechanism (5) which is clamped and locked with the clamping hook (32) is arranged at the rear part of the saw frame (1); the section of the positioning groove (31) is V-shaped, and a protective layer is covered on the inner side of the positioning groove; the grip (4) comprises a horizontal chopping grip part and a vertical push-pull grip part; an air duct (12) with the same shape as the saw frame (1) is arranged in the saw frame; an air suction opening (6) communicated with the air duct (12) is formed in the rear side of the front part of the saw frame (1), and a discharge opening (14) is formed in the lower end of the front side of the front part of the saw frame; an air outlet (7) is formed in the front side of the rear part of the saw frame (1); a fan (11) is arranged in the air duct (12); the air outlet (7) is inclined in a front-low and rear-high manner, and the air suction opening (6) is inclined in a front-high and rear-low manner; one side of the fan (11) close to the air suction opening (6) is provided with a filtering device (10), and the upper side of the air suction opening (6) is provided with a first baffle (8) and a second baffle (9) for stopping sawdust.
2. The dual-purpose hand saw for cutting and sawing as claimed in claim 1, wherein the lower end of the front part of the saw frame (1) is provided with two oppositely arranged positioning plates (16), and the front end of the saw frame (1) is clamped between the two positioning plates (16) and is rotatably mounted by inserting and combining positioning bolts (17).
3. The dual-purpose hand saw as claimed in claim 1, characterized in that said locking mechanism (5) comprises a rotating frame (52), a connecting shaft (54) and a connecting rod (51); the rotating frame (52) is of a V-shaped bent structure, and the bent part of the rotating frame is rotatably connected with the saw frame (1) through a rotating shaft (53); one end of the rotating frame (52) is rotatably connected with the connecting rod (51) through a connecting shaft (54), and one end of the connecting rod (51) far away from the rotating frame (52) is provided with a clamping shaft (56) clamped and positioned with the clamping hook (32); the saw frame (1) is provided with a limiting part for limiting the rotation limit position of the rotating frame (52).
4. The dual-purpose hand saw for cutting and sawing as claimed in claim 3, wherein a groove (13) is formed in the rear portion of the saw frame (1), and a limiting member for limiting the rotation of the rotating frame (52) is formed on the front side wall of the groove (13).
5. A dual purpose hand saw as claimed in claim 3, wherein the end of the turret (52) remote from the shaft (54) is provided with a handle (55).
6. The dual-purpose hand saw as claimed in claim 3, wherein the latch shaft (56) is provided with a stopper (57) for limiting the hook (32) in the left-right direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436939.9A CN114055571B (en) | 2021-11-29 | 2021-11-29 | Dual-purpose hand saw of cutting saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436939.9A CN114055571B (en) | 2021-11-29 | 2021-11-29 | Dual-purpose hand saw of cutting saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114055571A CN114055571A (en) | 2022-02-18 |
| CN114055571B true CN114055571B (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111436939.9A Active CN114055571B (en) | 2021-11-29 | 2021-11-29 | Dual-purpose hand saw of cutting saw |
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| CN (1) | CN114055571B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0226646D0 (en) * | 2002-11-15 | 2002-12-24 | B & Q Plc | Saw blade support |
| TWM296124U (en) * | 2006-02-24 | 2006-08-21 | Bing-Sen Chen | Quick-release structure for handsaw |
| EP2393642A4 (en) * | 2009-02-05 | 2013-07-03 | Milwaukee Electric Tool Corp | Hand saw |
| TWM406512U (en) * | 2011-01-21 | 2011-07-01 | K & W Tools Co Ltd | Saw blade assembling and adjusting structure of a bow saw |
| CN203680504U (en) * | 2013-12-10 | 2014-07-02 | 重庆思贝肯节能技术开发有限公司 | Auxiliary structure for saw blade in foam cement insulation board blank-cutting system |
| CN107309490A (en) * | 2017-08-15 | 2017-11-03 | 中山市德丰科技服务有限公司 | Saw bow device with dust collection component |
| CN214925154U (en) * | 2021-07-15 | 2021-11-30 | 嘉达荣家居(惠州)有限公司 | Furniture production is with hand power saw of being convenient for change saw blade |
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2021
- 2021-11-29 CN CN202111436939.9A patent/CN114055571B/en active Active
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| CN114055571A (en) | 2022-02-18 |
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