CN217991143U

CN217991143U - Portable hand-operated table base saw bow

Info

Publication number: CN217991143U
Application number: CN202221807537.5U
Authority: CN
Inventors: 吴俊杰; 曾庆; 杨攀; 李森全
Original assignee: Panzhihua University
Current assignee: Panzhihua University
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-12-09
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses portable hand pedestal bow belongs to the cutting tool field, and the purpose makes things convenient for when the material is fixed to be favorable to improving the sawing precision. Comprises a workbench, a fixed frame and a saw blade; the top surface of the bottom plate of the workbench is provided with four upright posts; mounting seats are respectively fixed on the bottom surfaces of the two ends of the mounting plate along the length direction of the mounting plate of the fixing frame, and through holes are formed in the mounting seats; the support rods at the two ends of the saw blade are movably inserted into the through holes respectively; a driving mechanism for driving the saw blade to do linear reciprocating motion is arranged; the mounting plate is movably connected with the vertical rod along the vertical direction of the vertical rod; a lifting rod and a lower pressure rod are movably arranged between the two vertical rods positioned on the same side of the saw blade. The material is tightly pressed on the lifting rod through the lower pressure rod, so that the material is more conveniently fixed and has better stability; the two ends of the lower pressing rod are movably connected with the vertical rod, so that the sawing machine is suitable for sawn materials with different heights; the driving mechanism drives the saw blade to linearly reciprocate, so that phenomena of saw blade deviation and the like are avoided, and the cutting precision and the regularity of the section are improved.

Description

Portable hand-rocking table-base saw bow

Technical Field

The utility model belongs to the cutting tool field specifically is portable hand bench seat bow.

Background

A conventional manual saw bow includes a support frame and a saw blade mounted on the support frame. When the traditional manual bow saw is used for sawing materials, firstly, the materials to be sawn are inconvenient to fix, and the materials to be sawn are usually needed to be stepped by feet, so that the operation intensity of workers is high, and the material fixing stability is poor; secondly, when the material sawing machine is used, a user holds the support frame or the armrest part independently arranged on the support frame by hands to perform reciprocating motion to saw materials, the phenomenon of deflection is easy to occur, the accurate cutting position and angle of the saw blade are difficult to control during material sawing, the linear cutting of the saw blade is difficult to ensure, the cutting precision is low, and the cutting section is irregular.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a portable hand crank pedestal saw bow in order to solve the inconvenient problem of material fixation when current saw bow saw material, be favorable to improving the saw material precision when making things convenient for the material fixed.

The utility model adopts the technical proposal that: the portable hand-cranking base saw bow comprises a workbench, a fixing frame and a saw blade; the workbench comprises a bottom plate which is horizontally arranged, supporting legs which are used for supporting the bottom plate are arranged at the bottom of the bottom plate, and four upright rods which are distributed in a square shape and are vertical to the bottom plate are arranged on the top surface of the bottom plate; the fixing frame comprises a horizontally arranged mounting plate, mounting seats are respectively fixed on the bottom surfaces of two ends of the mounting plate along the length direction of the mounting plate, and through holes penetrating along the length direction of the mounting plate are formed in the mounting seats; two ends of the saw blade are respectively provided with a support rod; the support rods at the two ends of the saw blade are respectively inserted into the through holes on the corresponding mounting seats and are movably matched with the through holes along the axial direction of the through holes; a driving mechanism for driving the saw blade to do linear reciprocating motion is arranged; the mounting plate is movably connected with the vertical rod along the vertical direction of the vertical rod; a lifting rod and a lower pressing rod are arranged between two vertical rods which are positioned on the same side of the saw blade along the length direction of the saw blade; two ends of the lifting rod are movably connected with the vertical rod; the lower pressing rod is positioned above the lifting rod, and two ends of the lower pressing rod are movably connected with the vertical rod along the vertical direction of the vertical rod.

Furthermore, a through slideway which extends vertically along the vertical rod is arranged on the vertical rod; the two ends of the lower pressure lever are provided with bending parts, and the bending parts and the vertical rods are movably connected through bolts and nuts which penetrate through the slide ways and the bending parts.

Furthermore, a sliding hole is formed in the mounting plate corresponding to the vertical rod, and the vertical rod is movably inserted into the sliding hole along the vertical direction.

Furthermore, a limit plate which is vertically movably matched with the upright rod is sleeved on the upright rod, and a telescopic spring is arranged between the limit plate and the top surface of the mounting plate; and a limiting bolt is arranged in the slide way of the upright rod and abuts against the top surface of the limiting plate to limit the limiting plate.

Furthermore, the driving mechanism comprises a guide rail which is fixed at the right end of the saw blade and is vertically arranged, a support which is fixed at the bottom surface of the right end of the mounting plate, a vertically arranged disc which can rotate and a handle which drives the disc to rotate; the guide rail is provided with a through chute which extends vertically along the guide rail; the disc is movably arranged on the support through a rotating shaft, a sliding block is arranged on the other side of the disc adjacent to the support, and the sliding block is inserted in the sliding groove of the guide rail and is movably matched with the sliding groove along the extending direction of the sliding groove; the handle is connected with the other end of the rotating shaft connected with the disc.

Furthermore, slide rails are arranged on two opposite side edges of the bottom plate, and moving blocks movably connected with the slide rails along the extension direction of the slide rails are arranged on the slide rails; the top ends of the supporting legs are hinged to the bottom surface of the bottom plate, an inclined strut sliding rod is arranged between the supporting legs and the bottom plate, one end of the inclined strut sliding rod is hinged to the middle of the supporting legs, and the other end of the inclined strut sliding rod is connected with a moving block on the bottom plate in an intersecting mode.

The utility model has the advantages that: the lifting rod and the lower pressing rod are arranged between the two vertical rods which are positioned on the same side of the saw blade along the length direction of the saw blade, and the lower pressing rod presses down from the top of the material to tightly press the material on the lifting rod, so that the material is prevented from being stepped by feet during material gathering, and the material is more conveniently fixed and has better stability;

the two ends of the lower pressing rod are movably connected with the vertical rod along the vertical direction of the vertical rod, so that the lower pressing rod can move up and down along the vertical direction to adapt to materials to be sawn at different heights;

the driving mechanism drives the saw blade to linearly reciprocate, so that phenomena such as deviation of the saw blade are avoided, the accurate cutting position and angle of the saw blade are controlled, and the cutting precision and the regularity of a cutting section are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention.

In the figure, a bottom plate 1, a vertical rod 2, a slideway 2A, a supporting leg 3, a mounting plate 4, a sliding hole 4A, a mounting seat 5, a through hole 5A, a lifting rod 6, a lower pressing rod 7, a bending part 7A, a limiting plate 8, a telescopic spring 9, a limiting bolt 10, a guide rail 11, a sliding groove 11A, a support 12, a disc 13, a sliding block 13A, a handle 14, a sliding rail 15, a moving block 16, an inclined strut sliding rod 17, a saw blade 18 and a supporting rod 19.

Detailed Description

The invention is further described below with reference to the following figures and examples:

a portable hand-table pedestal saw bow, as shown in fig. 1 and 2, comprising a worktable, a fixed frame and a saw blade 18; the workbench comprises a bottom plate 1 which is horizontally arranged, supporting legs 3 which are used for supporting the bottom plate 1 are arranged at the bottom of the bottom plate 1, and four upright rods 2 which are distributed in a square shape and are vertical to the bottom plate 1 are arranged on the top surface of the bottom plate 1; the fixing frame comprises a horizontally arranged mounting plate 4, mounting seats 5 are respectively fixed on the bottom surfaces of two ends of the mounting plate 4 along the length direction of the mounting plate 4, and through holes 5A penetrating along the length direction of the mounting plate 4 are formed in the mounting seats 5; two ends of the saw blade 18 are respectively provided with a support rod 19; the support rods 19 at the two ends of the saw blade 18 are respectively inserted into the through holes 5A on the corresponding mounting seats 5 and are movably matched with the through holes 5A along the axial direction; a drive mechanism is provided for driving the saw blade 18 to reciprocate linearly.

Mounting panel 4 is along 2 vertical and 2 swing joint of pole setting, and mounting panel 4 can be along 2 vertical removal of pole setting promptly, so sets up for mounting panel 4 can be through reciprocating the regulation with the not quilt saw material of co-altitude of adaptation, and mounting panel 4 can move down along with the deepening of the 18 sawing depths of saw blade, satisfies the requirement of sawing the material completely.

In order to clamp materials, a lifting rod 6 and a lower pressing rod 7 are arranged between two vertical rods 2 which are positioned on the same side of a saw blade 18 along the length direction of the saw blade 18; two ends of the lifting rod 6 are movably connected with the upright rod 2; the lower pressure rod 7 is positioned above the lifting rod 6, and two ends of the lower pressure rod are vertically movably connected with the vertical rod 2 along the vertical rod 2. This structure, the material can be followed the horizontal direction of perpendicular to saw blade 18 and put into the top of holding in the palm lifter 6, holds in the palm the material through two 6 material bottoms of lifter for there is certain interval between material and the bottom plate 1, avoids saw blade 18 saw off the sawtooth touching bottom plate 1 behind the material, leads to the damage. The lower pressure rod 7 is pressed downwards from the top of the material to tightly press the material on the lifting rod 6, so that the sawed material is prevented from moving when being sawed. And two ends of the lower pressing rod 7 are movably connected with the vertical rod 2 along the vertical direction of the vertical rod 2, and the lower pressing rod 7 can vertically move up and down along the vertical direction to adapt to sawn materials with different heights.

The driving mechanism drives the saw blade 18 to do linear reciprocating motion, so that the phenomena of deviation of the saw blade 18 and the like are avoided, the accurate cutting position and angle of the saw blade 18 are favorably controlled, and the cutting precision and the cutting section regularity are improved.

The upright rod 2 is provided with a through slideway 2A which vertically extends along the upright rod 2, and the end part of the lower press rod 7 is inserted in the slideway 2A to realize the movable fit of the two. In the embodiment, a through slideway 2A which extends vertically along the upright 2 is arranged on the upright 2; the two ends of the lower pressure lever 7 are provided with bending parts 7A, and the bending parts 7A are movably connected with the upright rod 2 through bolts and nuts which penetrate through the slideway 2A and the bending parts 7A. The bending part 7A not only plays a role in connection with the vertical rod 2, but also can play a role in reinforcing the lower press rod 7.

Of course, the position of the lifting rod 6 can be fixed inconveniently, and the same structure as the lower pressing rod 7 can be adopted.

A sliding hole 4A is arranged on the mounting plate 4 corresponding to the upright rod 2, and the upright rod 2 is movably inserted into the sliding hole 4A along the vertical direction. The upright stanchion 2 is movably inserted with the slide hole 4A, so that the aim of adjusting the position of the mounting plate 4 on the upright stanchion 2 is fulfilled, the structure is simple, and the manufacture is convenient.

In order to further ensure that the mounting plate 4 can move downwards along with the deepening of the sawing depth of the saw blade 18, the requirement of material gathering is met. Preferably, a limit plate 8 which is vertically and movably matched with the upright rod 2 is sleeved on the upright rod, and a telescopic spring 9 is arranged between the limit plate 8 and the top surface of the mounting plate 4; a limiting bolt 10 is arranged in the slide way 2A of the upright rod 2, and the limiting bolt 10 abuts against the top surface of the limiting plate 8 to limit the limiting plate 8.

At whole material in-process that gathers, expanding spring 9 is in compression state, along with gathering deepening gradually of material degree of depth, expanding spring 9 follows the extension, promotes saw blade 18 decline and continuously contacts the material, guarantees gathering going on smoothly of material.

The saw blade 18 can be directly pushed to and fro manually and linearly to saw materials, but the operation intensity of workers is higher, in the utility model, the driving mechanism comprises a guide rail 11 which is fixed at the right end of the saw blade 18 and is vertically arranged, a support 12 which is fixed at the bottom surface of the right end of the mounting plate 4, a vertically arranged self-rotating disc 13 and a handle 14 which drives the disc 13 to rotate; a through chute 11A is arranged on the guide rail 11 and extends vertically along the guide rail; the disc 13 is movably mounted on the support 12 through a rotating shaft, a sliding block 13A is arranged on the other side of the disc 13 adjacent to the support 12, and the sliding block 13A is inserted into the sliding groove 11A of the guide rail 11 and is movably matched with the sliding groove 11A along the extending direction of the sliding groove 11A; the handle 14 is connected to the other end of the rotating shaft connected to the disc 13.

According to the structure, the rotary handle 14 drives the disc 13 to rotate, the sliding block 13A on the disc 13 rotates along with the disc, and meanwhile, the sliding block 13A vertically and linearly moves in the sliding groove 11A of the sliding block 13A relative to the sliding groove 11A, so that the saw blade 18 is driven to linearly reciprocate in the horizontal direction, and cutting is realized.

The saw blade 18 is pushed to move linearly back and forth by rotating the handle 14, an operator can operate the saw blade with one hand, and the operation is simple by rotating the handle 14, so that the smoothness of the movement of the saw blade 18 is better controlled, and the cutting precision is improved.

For the convenience of storage, preferably, slide rails 15 are arranged on two opposite sides of the bottom plate 1, and a moving block 16 movably connected with the slide rails 15 along the extending direction of the slide rails 15 is installed on the slide rails 15; the top end of the supporting leg 3 is hinged with the bottom surface of the bottom plate 1, an inclined strut slide bar 17 is arranged between the supporting leg 3 and the bottom plate 1, one end of the inclined strut slide bar 17 is hinged to the middle of the supporting leg 3, and the other end of the inclined strut slide bar 17 is connected with a moving block 16 on the bottom plate 1 in a cross mode. The landing leg 3 of this setting is foldable structure, and is small after folding, practices thrift occupation space, conveniently receive and releases.

Claims

1. Portable hand bench seat bow, its characterized in that: comprises a workbench, a fixing frame and a saw blade (18); the workbench comprises a bottom plate (1) which is horizontally arranged, supporting legs (3) which are used for supporting the bottom plate (1) are arranged at the bottom of the bottom plate (1), and four upright rods (2) which are distributed in a square shape and are vertical to the bottom plate (1) are arranged on the top surface of the bottom plate (1);

the fixing frame comprises a horizontally arranged mounting plate (4), mounting seats (5) are respectively fixed on the bottom surfaces of two ends of the mounting plate (4) along the length direction of the mounting plate (4), and through holes (5A) penetrating along the length direction of the mounting plate (4) are formed in the mounting seats (5);

two ends of the saw blade (18) are respectively provided with a support rod (19); the support rods (19) at the two ends of the saw blade (18) are respectively inserted into the through holes (5A) on the corresponding mounting seats (5) and are movably matched with the through holes (5A) along the axial direction of the through holes (5A); a driving mechanism for driving the saw blade (18) to do linear reciprocating motion is arranged;

the mounting plate (4) is movably connected with the upright rod (2) along the vertical direction of the upright rod (2);

a lifting rod (6) and a lower pressing rod (7) are arranged between two upright rods (2) which are positioned at the same side of the saw blade (18) along the length direction of the saw blade (18); two ends of the lifting rod (6) are movably connected with the upright rod (2); the lower pressing rod (7) is positioned above the lifting rod (6), and two ends of the lower pressing rod are vertically movably connected with the vertical rod (2) along the vertical rod (2).

2. A portable hand bench saw bow according to claim 1, wherein: a through slideway (2A) is arranged on the upright rod (2) and vertically extends along the upright rod (2);

the two ends of the lower pressure lever (7) are provided with bending parts (7A), and the bending parts (7A) are movably connected with the upright stanchions (2) through bolts and nuts which penetrate through the slide ways (2A) and the bending parts (7A).

3. A portable hand bench saw bow according to claim 2, wherein: a sliding hole (4A) is formed in the mounting plate (4) corresponding to the upright rod (2), and the upright rod (2) is movably inserted into the sliding hole (4A) in the vertical direction.

4. A portable hand bench saw bow according to claim 3, wherein: a limiting plate (8) which is vertically and movably matched with the upright rod (2) is sleeved on the upright rod, and a telescopic spring (9) is arranged between the limiting plate (8) and the top surface of the mounting plate (4); a limiting bolt (10) is arranged in a slide way (2A) of the vertical rod (2), and the limiting bolt (10) abuts against the top surface of the limiting plate (8) to limit the limiting plate (8).

5. A portable hand bench saw bow according to any one of claims 1-4, wherein: the driving mechanism comprises a guide rail (11) which is fixed at the right end of the saw blade (18) and is vertically arranged, a support (12) which is fixed at the bottom surface of the right end of the mounting plate (4), a vertically arranged self-rotating disc (13) and a handle (14) which drives the disc (13) to rotate;

a through chute (11A) is arranged on the guide rail (11) and extends vertically along the guide rail;

the disc (13) is movably mounted on the support (12) through a rotating shaft, a sliding block (13A) is arranged on the other side, adjacent to the support (12), of the disc (13), and the sliding block (13A) is inserted into a sliding groove (11A) of the guide rail (11) and is movably matched with the sliding groove (11A) along the extending direction of the sliding groove (11A); the handle (14) is connected with the other end of the rotating shaft connected with the disc (13).

6. A portable hand bench saw bow according to any one of claims 1-4, wherein:

the opposite two sides of the bottom plate (1) are provided with slide rails (15), and the slide rails (15) are provided with moving blocks (16) movably connected with the slide rails along the extension direction of the slide rails (15);

the top end of the supporting leg (3) is hinged with the bottom surface of the bottom plate (1), an inclined strut sliding rod (17) is arranged between the supporting leg (3) and the bottom plate (1), one end of the inclined strut sliding rod (17) is hinged to the middle of the supporting leg (3), and the other end of the inclined strut sliding rod is connected with a moving block (16) on the bottom plate (1).