CN207874432U - A kind of circular saw safe to use - Google Patents

Abstract

The utility model discloses a kind of circular saws safe to use, including metal saw blade, workbench, motor and pedestal, the motor is fixedly connected on the bottom of base inner wall, the pedestal is fixedly connected on the lower surface of workbench, the surface fixing sleeve of the motor output shaft is connected to drive pulley, the back side of the motor is fixedly connected with round bar, the output shaft of the motor and the surface of round bar are fixedly connected with the inner wall of first bearing, the quantity of the first bearing is two, the output shaft and round bar of the motor are connected with connecting rod by first bearing respectively, and the quantity of connecting rod is two, the fixation of the opposite face of two connecting rods is inlaid with second bearing.The utility model is by being arranged round bar, connecting rod, fixed link, the first motion bar, the second motion bar and gear, it is that a part for metal saw blade is constantly exposed to the top of workbench to solve circular saw used at present mostly, metal saw blade is very sharp, dangerous higher problem.

Description

A kind of circular saw safe to use

Technical field

The utility model is related to timber cutter device technical field, specially a kind of circular saw safe to use.

Background technology

Circular saw is relatively common in terms of timber processing, for timber to be processed into plank, usually drives disk by motor Timber is cut in the rotation of shape metal saw blade, since its is simple in structure, price economy, is favored by users.

Circular saw used at present is mostly that a part for metal saw blade is constantly exposed to the top of workbench, and metal saw blade is non- Chang Fengli is dangerous higher.

Utility model content

（One）The technical issues of solution

In view of the deficiencies of the prior art, the utility model provides a kind of circular saw safe to use, and solve makes at present Circular saw is mostly that a part for metal saw blade is constantly exposed to the top of workbench, and metal saw blade is very sharp, dangerous Higher problem.

（Two）Technical solution

To achieve the above object, the utility model provides the following technical solutions：A kind of circular saw safe to use, including steel Saw blade, workbench, motor and pedestal, the motor are fixedly connected on the bottom of base inner wall, and the pedestal is fixedly connected on work Make the lower surface of platform, the surface fixing sleeve of the motor output shaft is connected to drive pulley, and the back side of the motor is fixedly connected There are round bar, the output shaft of the motor and the surface of round bar to be fixedly connected with the inner wall of first bearing, the first bearing Quantity is two, and the output shaft and round bar of the motor are connected with connecting rod by first bearing respectively, and connecting rod Quantity is two, and the opposite faces of two connecting rods is fixed to be inlaid with second bearing, the inner wall of the second bearing with turn The surface of axis is fixedly connected, and the surface fixing sleeve of the shaft is connected to driven pulley, the drive pulley and follower belt Wheel is connected by belt transmission, and the metal saw blade is fixedly attached to the surface of shaft, and the front of the connecting rod is fixedly connected with Fixed link.

The bottom of the base inner wall offers the first limit hole and the second limit hole respectively, and first limit hole is located at The inner wall on the right side of the second limit hole, first limit hole is connect with the surface activity of the first motion bar, first activity The upper surface of bar and the surface of fixed link overlap, and the inner wall of second limit hole is connected with the second motion bar, and second Motion bar runs through workbench and extends to the outside of workbench, and the bottom of the base inner wall is fixedly connected with holder, the branch Frame is fixedly connected with 3rd bearing between the first motion bar and the second motion bar in the perforation that the holder front opens up, The inner wall of the 3rd bearing is fixedly connected with the surface of fixing axle, and the surface of the fixing axle has been fixedly attached gear, described The opposite face of first motion bar and the second motion bar offers tooth socket, and the tooth socket is engaged with gear.

Preferably, it is fixedly connected with guide pad at the position of bottom the first limit hole of correspondence of the base inner wall, it is described The inner wall of guide pad is connect with the surface activity of the first motion bar.

Preferably, the plane tangent of the left side and fixed link of first motion bar.

Preferably, it is fixedly connected with pressing plate at the top of second motion bar, and between the upper surface and workbench of pressing plate Distance be equal to metal saw blade and driven pulley radius difference.

Preferably, the front of second motion bar offers straight slot, the top and bottom of the straight slot inner wall respectively with The both ends of vertical bar are fixedly connected, and the surface activity of the vertical bar is socketed with resetting spring, and the both ends difference of resetting spring It is overlapped with the top and bottom of straight slot inner wall.

（Three）Advantageous effect

The utility model provides a kind of circular saw safe to use, has following advantageous effect：

（1）, the utility model by the way that round bar, connecting rod, fixed link, the first motion bar, the second motion bar and gear is arranged, Timber is transported to the upper surface of workbench, timber pushes down the second motion bar, and the second motion bar moves downward, and pushes timber to the right Movement, band moving gear rotate counterclockwise, and gear drives the first activity to move upwards by tooth socket, and the first motion bar, which pushes, to be fixed Bar so that connecting rod drives shaft to be rotated clockwise around round bar, and metal saw blade carries out timber through the through-hole of worktable upper surface Cutting, the second motion bar loses pressure after suiting, since gravity connecting rod and fixed link are pressed down against the first motion bar, the One motion bar drives the second motion bar to move upwards by gear, and metal saw blade returns to initial position, and metal saw blade is exposed to when use The upper surface of workbench, metal saw blade is retracted into the lower section of workbench after use, reaches metal saw blade auto-extending and contraction Effect, use is safer, and solving circular saw used at present mostly and be the part of metal saw blade, to be constantly exposed to work flat The top of platform, metal saw blade is very sharp, dangerous higher problem.

（2）, the utility model by the way that straight slot, vertical bar and resetting spring is arranged, after pressing plate loses pressure, connecting rod and turn For the structures such as axis since its own gravity can drive the first motion bar to move downward, shaft drives metal saw blade to move downward, and lives first When lever moves downward, the resetting spring in straight slot is shunk, and spring is due to therein tension force effect, the bottom of resetting spring at this time Bottom inside portion's support base so that the second motion bar is quickly sprung back, and the second motion bar moves upwards, and band moving gear is clockwise Rotation, gear drive the first motion bar to move downward, achieve the effect that metal saw blade can be withdrawn rapidly.

Description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is right view at the utility model motor position；

Fig. 3 is the utility model pedestal top cross-sectional view；

Fig. 4 is top cross-sectional view at the utility model guide pad position.

In figure：1 metal saw blade, 2 workbench, 3 motors, 4 pedestals, 5 drive pulleys, 6 round bars, 7 first bearings, 8 connecting rods, 9 second bearings, 10 shafts, 11 driven pulleies, 12 belts, 13 fixed links, 14 first limit holes, 15 second limit holes, 16 One motion bar, 17 second motion bars, 18 holders, 19 3rd bearings, 20 fixing axles, 21 gears, 22 tooth sockets, 23 guide pads, 24 pressures Plate, 25 straight slots, 26 vertical bars, 27 resetting springs.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

As shown in Figs 1-4, the utility model provides a kind of technical solution：A kind of circular saw safe to use, including hacksaw Piece 1, workbench 2, motor 3 and pedestal 4, timber move from left to right in the upper surface of workbench 2, and motor 3 is fixedly connected on bottom The bottom of 4 inner walls of seat, pedestal 4 are fixedly connected on the lower surface of workbench 2, and the power supply mode of motor 3 is external power supply, motor 3 The surface fixing sleeve of output shaft is connected to drive pulley 5, and drive pulley 5 drives shaft by belt 12 and driven pulley 11 The back side of 10 rotations, motor 3 is fixedly connected with round bar 6, and round bar 6 and the axis of 3 output shaft of motor are located at same straight line, motor 3 output shaft and the surface of round bar 6 are fixedly connected with the inner wall of first bearing 7, and the quantity of first bearing 7 is two, motor 3 Output shaft and round bar 6 connecting rod 8 is connected with by first bearing 7 respectively, and the quantity of connecting rod 8 is two, connection Bar 8 is used to support shaft 10 so that shaft 10 is parallel with round bar 6, and belt 12 is tight, and the opposite face of two connecting rods 8 is fixed It is inlaid with second bearing 9, the inner wall of second bearing 9 is fixedly connected with the surface of shaft 10, and the surface fixing sleeve of shaft 10 is connected to Driven pulley 11, drive pulley 5 and driven pulley 11 are sequentially connected by belt 12, and metal saw blade 1, which is fixedly attached to, to be turned The front on the surface of axis 10, connecting rod 8 is fixedly connected with fixed link 13, and the first motion bar 16, which moves upwards, pushes fixed link 13, So that connecting rod 8 is rotated around round bar 6, metal saw blade 1 passes through the through-hole of 2 upper surface of workbench to cut timber.

The bottom of 4 inner wall of pedestal offers the first limit hole 14 and the second limit hole 15 respectively, and the first limit hole 14 is used for Determine that the position of the first motion bar 16, the second limit hole 15 are used to determine the position of the second motion bar 17, the first limit hole 14 In the right side of the second limit hole 15, the inner wall of the first limit hole 14 is connect with the surface activity of the first motion bar 16, the first activity The plane tangent of the left side and fixed link 13 of bar 16 pushes fixed link 13 when first motion bar 16 moves upwards so that connection Bar 8 rotates clockwise, and fixed link 13 moves from left to right at the top of the first motion bar 16, and fixed link 13 will not lose the first work The thrust of lever 16, the bottom of 4 inner wall of pedestal correspond to and are fixedly connected with guide pad 23, guide pad at the position of the first limit hole 14 23 inner wall is connect with the surface activity of the first motion bar 16, and guide pad 23 is oriented to the movement of the first motion bar 16, makes The operation for obtaining the first motion bar 16 is more accurate, and the upper surface of the first motion bar 16 is overlapped with the surface of fixed link 13, the second limit The inner wall in position hole 15 is connected with the second motion bar 17, and the second motion bar 17 through workbench 2 and extends to workbench 2 The top of outside, the second motion bar 17 is fixedly connected with pressing plate 24, and pressing plate 24 is used to receive the pressure of timber application, and pressing plate 24 Upper surface and the distance between workbench 2 be equal to the difference of 11 radius of metal saw blade 1 and driven pulley, timber is downwards to pressing plate 24 Apply pressure, when the upper surface of pressing plate 24 keeps concordant with workbench 2, the cut portion of metal saw blade 1 is just exposed to workbench 2 Top, the front of the second motion bar 17 offers straight slot 25, the top and bottom of 25 inner wall of straight slot respectively with vertical bar 26 Both ends are fixedly connected, and for being oriented to the movement of resetting spring 27, the surface activity of vertical bar 26 is socketed with vertical bar 26 Resetting spring 27, and the both ends of resetting spring 27 respectively with the top and bottom of 25 inner wall of straight slot overlap, the second motion bar 17 to When lower movement, the bottom of resetting spring 27 is overlapped with the bottom of 4 inner wall of pedestal, and resetting spring 27 is shunk, and pressing plate 24 loses pressure Afterwards, resetting spring 27 supports the second motion bar 17, and the second motion bar 17 is driven to move upwards, and the first activity is driven by gear 21 Bar 16 moves downward so that metal saw blade 1 is withdrawn rapidly, and the bottom of 4 inner wall of pedestal is fixedly connected with holder 18, and holder 18 is located at the Between one motion bar 16 and the second motion bar 17,3rd bearing 19, holder are fixedly connected in the perforation that 18 front of holder opens up 18 are connected and fixed axis 20 by 3rd bearing 19, and fixing axle 20 is used to determine the position of gear 21, the inner wall of 3rd bearing 19 with The surface of fixing axle 20 is fixedly connected, and the surface of fixing axle 20 has been fixedly attached gear 21, the first motion bar 16 and the second activity The opposite face of bar 17 offers tooth socket 22, and tooth socket 22 is engaged with gear 21.

When in use, power on the rotation of rear metal saw blade 1, timber is transported to the upper surface of workbench 2, timber is to pressing plate 24 apply pressure, push timber, pressing plate 24 that the second motion bar 17 is driven to move downward to the right, and resetting spring 27 is shunk, and second lives Lever 17 is rotated counterclockwise with moving gear 21, and gear 21 drives the first motion bar 16 to be moved upwards along guide pad 23, and first lives Lever 16 pushes connecting rod 8 to be rotated clockwise around round bar 6 by fixed link 13, and metal saw blade 1 passes through the through-hole of 2 upper surface of workbench Timber is cut, after cutting, pressing plate 24 loses the pressure of timber, and resetting spring 27 drives the second motion bar 17 upwards Movement, gear 21 rotate clockwise, and the first motion bar 16 moves downward, and connecting rod 8 rotates counterclockwise, and metal saw blade 1 is retracted into work Make the lower section of platform 2.

It can to sum up obtain, the utility model is lived by the way that round bar 6, connecting rod 8, fixed link 13, the first motion bar 16, second is arranged Lever 17 and gear 21, the part for solving circular saw used at present mostly and be metal saw blade 1 are constantly exposed to workbench Top, metal saw blade 1 is very sharp, dangerous higher problem.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of circular saw safe to use, including metal saw blade（1）, workbench（2）, motor（3）And pedestal（4）, the motor （3）It is fixedly connected on pedestal（4）The bottom of inner wall, the pedestal（4）It is fixedly connected on workbench（2）Lower surface, feature It is：The motor（3）The surface fixing sleeve of output shaft is connected to drive pulley（5）, the motor（3）The back side be fixedly connected There is round bar（6）, the motor（3）Output shaft and round bar（6）Surface and first bearing（7）Inner wall be fixedly connected, institute State first bearing（7）Quantity be two, the motor（3）Output shaft and round bar（6）Pass through first bearing respectively（7）Activity It is connected with connecting rod（8）, and connecting rod（8）Quantity be two, two connecting rods（8）Opposite face fixation be inlaid with Second bearing（9）, the second bearing（9）Inner wall and shaft（10）Surface be fixedly connected, the shaft（10）Surface Fixing sleeve is connected to driven pulley（11）, the drive pulley（5）And driven pulley（11）Pass through belt（12）Transmission connects It connects, the metal saw blade（1）It is fixedly attached to shaft（10）Surface, the connecting rod（8）Front be fixedly connected with fixed link （13）；

The pedestal（4）The bottom of inner wall offers the first limit hole respectively（14）With the second limit hole（15）, first limit Position hole（14）Positioned at the second limit hole（15）Right side, first limit hole（14）Inner wall and the first motion bar（16）Table Face is flexibly connected, first motion bar（16）Upper surface and fixed link（13）Surface overlap joint, second limit hole （15）Inner wall be connected with the second motion bar（17）, and the second motion bar（17）Through workbench（2）And extend to work Platform（2）Outside, the pedestal（4）The bottom of inner wall is fixedly connected with holder（18）, the holder（18）Positioned at the first activity Bar（16）With the second motion bar（17）Between, the holder（18）It is fixedly connected with 3rd bearing in the perforation that front opens up （19）, the 3rd bearing（19）Inner wall and fixing axle（20）Surface be fixedly connected, the fixing axle（20）Surface it is solid Surely it is socketed with gear（21）, first motion bar（16）With the second motion bar（17）Opposite face offer tooth socket（22）, The tooth socket（22）With gear（21）Engagement.

2. a kind of circular saw safe to use according to claim 1, it is characterised in that：The pedestal（4）The bottom of inner wall Portion corresponds to the first limit hole（14）Position at be fixedly connected with guide pad（23）, the guide pad（23）Inner wall and first live Lever（16）Surface activity connection.

3. a kind of circular saw safe to use according to claim 1, it is characterised in that：First motion bar（16）'s Left side and fixed link（13）Plane tangent.

4. a kind of circular saw safe to use according to claim 1, it is characterised in that：Second motion bar（17）'s Top is fixedly connected with pressing plate（24）, and pressing plate（24）Upper surface and workbench（2）The distance between be equal to metal saw blade（1）With Driven pulley（11）The difference of radius.

5. a kind of circular saw safe to use according to claim 1, it is characterised in that：Second motion bar（17）'s Front offers straight slot（25）, the straight slot（25）The top and bottom of inner wall respectively with vertical bar（26）Both ends fix connect It connects, the vertical bar（26）Surface activity be socketed with resetting spring（27）, and resetting spring（27）Both ends respectively with straight slot （25）The top and bottom of inner wall overlap.