CN216758261U

CN216758261U - Semi-automatic small thread drilling machine

Info

Publication number: CN216758261U
Application number: CN202220401900.7U
Authority: CN
Inventors: 戴超超; 崔毅; 栾兆富; 蔡威威
Original assignee: Shanghai Xin Di Marine Engineering Technology Co ltd
Current assignee: Shanghai Xin Di Marine Engineering Technology Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-06-17
Anticipated expiration: 2032-02-25

Abstract

The application discloses a semi-automatic small-thread drilling machine, which comprises a handheld platform, a motor, a speed controller, a drill bit and a plurality of drill rods, wherein the motor, the speed controller, the drill bit and the plurality of drill rods are arranged on the handheld platform; and the handheld platform is also provided with a clamping mechanism used for clamping the drill rod when the drill rod is added on the periphery of the lower rod hole. The application has the effect of improving the problem that the drill rod of the part which is drilled into the ground in the drilling process lacks support and causes the trouble of rod adding operation.

Description

Semi-automatic small thread drilling machine

Technical Field

The application relates to the field of drilling equipment, in particular to a semi-automatic small thread drilling machine.

Background

An auger boring machine is a drilling machine in which a cutting blade is provided at the lower part of a drill, and a cut pattern rises along a spiral blade on a drill rod and is discharged from the ground, and the drill hole can be used for exploration sampling. The small-thread drilling machine is field portable drilling equipment and is suitable for plain filling soil, creek filling soil, cohesive soil, silt soil and sandy soil of shallow parts.

The small screw drilling machine generally comprises a handheld platform, a motor, a speed controller, a drill bit and a plurality of drill rods, wherein the motor, the speed controller, the drill bit and the drill rods are arranged on the handheld platform; during the use, the handheld platform is handed to the staff, the starter motor, and through the rotational speed of speed controller control motor speed and then control the rotational speed of drilling rod, the drilling rod rotates and drives the drill bit and bores the realization drilling.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: in order to be convenient to carry, the small thread drilling machine is used for drilling a drill rod body in a drilling mode, the drill rod body is formed by connecting a plurality of drill rods in a threaded mode, when the drilling and sampling are conducted in the field, if the length of the drill rod body assembled in advance is not enough, another drill rod is required to be connected with the drill rod body, which is separated from the output end of the motor, on the rear portion of the drill rod, which is arranged on the uppermost layer, in a threaded mode, the drill rod body is lengthened, the portion, which is drilled into the ground in the lengthening process, cannot be well supported due to the fact that the portion is separated from the output end of the motor, and therefore the operation of adding the drill rod is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the operation of adding a drill rod is troublesome due to the fact that the drill rod of a part which is drilled into the ground in the drilling process is lack of support, the application provides a semi-automatic small-thread drilling machine.

The application provides a little thread drilling machine of semi-automatic adopts following technical scheme:

a semi-automatic small thread drilling machine comprises a handheld platform, a motor arranged on the handheld platform, a speed controller, a drill bit and a plurality of drill rods, wherein the drill rods are connected with the drill bit, the output end of the motor and other drill rods through threads; and the handheld platform is also provided with a clamping mechanism used for clamping the drill rod when the drill rod is added on the periphery of the lower rod hole.

By adopting the technical scheme, when the drill rod needs to be lengthened, the drill rod and the motor output end are separated firstly, then the drill rod which is drilled downwards is clamped by the clamping mechanism arranged on the handheld platform, then the motor is lifted by the lifting mechanism, a gap for adding the rod is reserved between the motor output end and the drill rod which is drilled downwards, the rod is added again, the clamping mechanism is loosened after the rod is added, the motor height is adjusted by the lifting mechanism, then the motor output end is connected with the newly lengthened drill rod, the drilling can be continued, and the rotating speed of the motor is controlled by the speed controller so as to control the drilling speed; the drill rod which is drilled downwards in the rod adding process is clamped by the clamping mechanism, so that the operation is convenient and fast.

Optionally, the clamping mechanism includes two clamping blocks, linear grooves are formed in the handheld platform at two opposite positions of the lower rod hole, the length direction of each linear groove is the radial direction of the lower rod hole, the clamping blocks are connected to the linear grooves in a sliding manner, and when the clamping blocks slide to one ends of the linear grooves, which are close to the lower rod hole, one sides of the clamping blocks, which are close to the lower rod hole, are abutted to the drill rod, which is in inserted fit with the lower rod hole;

the handheld platform starts to be provided with arc wire grooves at two opposite positions of the lower rod hole, the arc wire grooves are communicated with one ends of the straight line grooves close to the lower rod hole, the clamping blocks are connected with one ends of the lower rod hole in a sliding mode through the arc wire grooves, one sides of the lower rod hole, far away from the arc wire grooves, are fixedly connected with limiting blocks, when the clamping blocks slide to the arc wire grooves and far away from one ends of the straight line grooves, the clamping blocks are close to one sides of the lower rod hole and matched with the lower drilling hole in an inserting mode, the drill rod butt is abutted to the clamping blocks, and one sides of the lower rod hole and the limiting blocks are abutted to the clamping blocks.

By adopting the technical scheme, when the drill rod needs to be lengthened, the two clamping blocks slide along the linear grooves to be abutted against the drill rod arranged in the lower drill hole, then continue to slide into the arc-shaped groove, and the clamping blocks are abutted against the side wall of the drill rod through the limiting blocks, so that the two clamping blocks clamp the drill rod which is drilled downwards, and the drill rod is conveniently lengthened; when drilling needs to be continued, the clamping block is slid to the end, far away from the lower drilling hole, of the linear groove, the drill rod which is drilled downwards can be loosened, meanwhile, the motor is lowered to the original position, the lengthened drill rod extends out of the handheld platform, and then the drilling machine can continue drilling.

Optionally, a clamping groove is formed in one side, close to the lower rod hole, of the arc-shaped wire groove, the clamping groove is communicated with one end, far away from the linear groove, of the arc-shaped wire groove, and the clamping block is connected to the clamping groove in a sliding manner from one end, far away from the linear groove, of the arc-shaped wire groove; the limiting block is further provided with a clamping component used for driving the clamping block to tightly abut against the drill rod from the clamping groove.

Through adopting above-mentioned technical scheme, when the rod diameter of drilling rod is less than the aperture of drilling down, support tight subassembly and can order about the grip block and slide and get into the screens groove, and then reduce the distance between grip block and drilling down, support the grip block tightly in the less drilling rod of rod diameter through supporting tight subassembly, and then make the grip block carry out the centre gripping to the drilling rod of multiple rod diameter.

Optionally, a placing groove is formed in one side, close to the lower rod hole, of the limiting block, the abutting assembly comprises an elastic telescopic rod arranged in the placing groove, the elastic telescopic rod stretches along the lower rod hole in the radial direction, the stretching end of the elastic telescopic rod is fixedly connected with an abutting ball, and an abutting groove matched with the abutting ball in a clamping mode is formed in one side, close to the limiting block, of the clamping block.

By adopting the technical scheme, when the drill rod needs to be lengthened, the clamping block slides to one end of the arc-shaped wire groove, which is far away from the linear groove, and at the moment, the elastic telescopic rod drives the abutting ball to be clamped in the abutting groove, so that the clamping block abuts against the drill rod; when drilling needs to be continued, the clamping block is spherical, when sliding from the arc-shaped groove to the linear groove, the side wall of the clamping groove drives the elastic telescopic rod to compress, so that the clamping ball is separated from the clamping groove, when the clamping block slides to the end, far away from the lower drilling hole, of the linear groove, the clamping block is separated from the drill rod, and the small thread drilling machine can be prevented from being influenced by the continuous drilling.

Optionally, the lifting mechanism comprises a support and two slide rails arranged at two opposite positions on the handheld platform, the two sides of the support are connected with the two slide rails in a sliding manner, the motor is arranged on the support, and the handheld platform is further provided with a driving assembly for driving the support to slide on the slide rails.

By adopting the technical scheme, the driving component drives the support to slide along the sliding rail, so that the motor arranged on the support is driven to lift; when the drill rod needs to be added, the driving assembly drives the motor to ascend to reserve a rod adding space for the lengthened drill rod, and the motor is lowered to enable the drill rod connected with the output end of the motor to extend out of the handheld platform to facilitate drilling when drilling is needed.

Optionally, the driving assembly comprises a worm arranged on one side of the sliding rail, two ends of the worm are respectively engaged with worm gears, the center of each worm gear is in threaded connection and penetrates through a threaded lifting rod, and one end, far away from the handheld platform, of each threaded lifting rod is fixedly connected with one end of the support; the handheld platform is also provided with a guide piece which is used for enabling the thread lifting rod to move only along the axial direction of the thread lifting rod.

By adopting the technical scheme, the worm is rotated, the worm drives the two worm gears which are in meshed connection with the worm to rotate, the threaded lifting rod with threads penetrating through the centers of the worm gears can only move axially along the threaded lifting rod due to the limitation of the guide piece, and then the support fixedly connected to the top end of the threaded lifting rod is driven to move axially along the threaded lifting rod, namely, the motor arranged on the support is driven to do lifting motion; meanwhile, the worm drives the two worm gears to synchronously rotate, so that the two threaded lifting rods synchronously lift, the two ends of the bracket synchronously lift, the output end of the motor is always vertical to the table top of the handheld platform, and the output end of the motor can be vertical to the ground by controlling the handheld platform to be parallel to the ground, so that the drilling work is facilitated; and due to the self-locking property of the worm gear and worm transmission, the phenomenon that the rising bracket slides down to influence the rod adding operation can be avoided as much as possible.

Optionally, the guide piece is including setting up the guide bar on the slide rail, screw thread lifter week side has seted up the guide way, the guide bar with guide way slip adaptation.

Through adopting above-mentioned technical scheme, the guide bar is pegged graft in the guide way, makes the screw thread lifter can't rotate along screw thread lifter axial together with the worm wheel, and then makes the screw thread lifter do elevating movement along its axial.

Optionally, a threaded hole is further formed in the peripheral wall of the handheld platform, a pressure lever is movably arranged on the handheld platform, and the pressure lever is connected to the handheld platform through the threaded hole in a threaded manner.

Through adopting above-mentioned technical scheme, during normal use, the staff holds handheld platform both ends and drills, and when the rig was unable when soil resistance was great creeps into smoothly, with the depression bar through threaded hole connection in handheld platform after, other staff can press down handheld platform through the supplementary power of depression bar, the rig of being convenient for continues to creep into.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the drill rod needs to be lengthened, the drill rod and the output end of the motor are separated, the drill rod which is drilled downwards is clamped by the clamping mechanism arranged on the handheld platform, then the motor is lifted by the lifting mechanism, a gap for adding the rod is reserved between the output end of the motor and the drill rod which is drilled downwards, the rod is added, the clamping mechanism is loosened after the rod is added, the output end of the motor is connected with the newly lengthened drill rod after the height of the motor is adjusted by the lifting mechanism, the drilling can be continued, the drill rod which is drilled downwards is clamped by the clamping mechanism in the rod adding process, and the operation is convenient;

2. when the drill rod needs to be lengthened, the two clamping blocks slide to abut against the drill rod arranged in the lower drill hole along the straight line grooves, then continue to slide into the arc line grooves, the clamping blocks abut against the side walls of the drill rod through the limiting blocks, and then the two clamping blocks clamp the drill rod which is drilled downwards, so that the drill rod is conveniently lengthened; when drilling is needed to be continued, the clamping block is slid to one end, away from the lower drilling hole, of the linear groove, the drill rod which is drilled down can be loosened, meanwhile, the motor is lowered to the original position, the lengthened drill rod extends out of the handheld platform, and then the drilling machine can continue to drill;

3. the worm rotates to drive the two worm gears which are in meshed connection with the worm to rotate, the threaded lifting rod with threads penetrating through the centers of the worm gears can only move axially along the threaded lifting rod due to the limitation of the guide piece, and then the support fixedly connected to the top end of the threaded lifting rod is driven to move axially along the threaded lifting rod, namely, the motor arranged on the support is driven to do lifting motion; meanwhile, the worm drives the two worm gears to synchronously rotate, so that the two thread lifting rods synchronously lift, the two ends of the support synchronously lift, the output end of the motor is always perpendicular to the table surface of the handheld platform, and the handheld platform is controlled to be parallel to the ground, so that the output end of the motor is perpendicular to the ground, and drilling work is facilitated.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram mainly used for showing a clamping mechanism in an embodiment of the application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

Reference numerals: 111. a handheld platform; 112. a handle; 12. a motor; 13. a drill bit; 14. a drill stem; 15. a lower rod hole; 2. a lifting mechanism; 21. a slide rail; 22. a support; 23. a drive assembly; 231. a support plate; 232. a support block; 233. a worm; 234. a worm gear; 235. a threaded lifting rod; 24. a guide bar; 25. a guide groove; 26. a handle; 3. a clamping mechanism; 311. a clamping block; 312. a long groove; 313. a glue layer; 32. a linear groove; 33. an arc wire groove; 34. a clamping groove; 35. a limiting block; 36. a propping component; 361. a placement groove; 362. an elastic telescopic rod; 363. tightly pressing the ball; 364. abutting against the groove; 41. a threaded hole; 42. a pressure lever.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses semi-automatic little screw thread drilling machine. Referring to fig. 1, the semi-automatic small thread drilling machine includes a hand-held platform 111, a motor 12 provided on the hand-held platform 111, a speed controller (not shown in the drawings) for controlling the rotation speed of the motor 12, a drill bit 13, and a plurality of drill rods 14; the handheld platform 111 in the embodiment of the application is a rectangular plate, handles 112 convenient for workers to hold are fixedly connected to two ends of the handheld platform 111, and the joints between the drill rod 14 and the drill rod 14, between the drill rod 14 and the drill bit 13, and between the drill rod 14 and the output end of the motor 12 are all in threaded connection with screws along the radial direction of the joints, so that the drill rod 14 and/or the drill bit 13 are prevented from loosening as far as possible when the output end of the motor 12 rotates; a lower rod hole 15 inserted with the drill rod 14 is formed in the handheld platform 111 in a penetrating mode, and one end, far away from the output end of the motor 12, of the drill rod 14 extends out of the handheld platform 111 from the lower rod hole 15 and is connected with the drill bit 13 for drilling; the handheld platform 111 is provided with a lifting mechanism 2 for driving the motor 12 to lift on the handheld platform 111, and the lifting direction of the motor 12 is perpendicular to the table top of the handheld platform 111; the hand-held platform 111 is further provided with a clamping mechanism 3 on the periphery of the lower rod hole 15 for clamping the drill rod 14 during rod adding.

Referring to fig. 2, the gripping mechanism 3 comprises two gripping blocks 311, and for convenience of illustration the gripping blocks 311 are in different positions when gripping the drill rod 14 and when drilling down the drilling machine, the two gripping blocks 311 in fig. 2 are in a position for gripping the drill rod 14 and in a position for avoiding interference with the drill rod 14 when drilling.

Specifically, the handheld platform 111 is provided with linear grooves 32 at two opposite positions of the lower rod hole 15, the length direction of the linear grooves 32 is the radial direction of the lower rod hole 15, and the clamping block 311 is connected to the linear grooves 32 in a sliding manner; arc-shaped line grooves 33 are formed in the handheld platform 111 at two opposite positions of the lower rod hole 15, the arc-shaped line grooves 33 are communicated with one ends of the linear grooves 32 close to the lower rod hole 15, and the clamping blocks 311 are connected with the arc-shaped line grooves 33 in a sliding mode from one ends of the linear grooves 32 close to the lower rod hole 15; one side of the arc line groove 33 close to the lower rod hole 15 is provided with a clamping groove 34, the clamping groove 34 is communicated with one end of the arc line groove 33 far away from the linear groove 32, and the clamping block 311 is connected to the clamping groove 34 in a sliding manner from one end of the arc line groove 33 far away from the linear groove 32.

A limiting block 35 is fixedly connected to one side of the arc line groove 33 far away from the lower rod hole 15, and a tightening assembly 36 for driving the clamping block 311 to tighten against the drill rod 14 from the clamping groove 34 is further arranged on the limiting block 35. In this application embodiment, the standing groove 361 has been seted up to one side that stopper 35 is close to lower pole hole 15, supports tight subassembly 36 and includes that the rigid coupling keeps away from the elastic telescopic rod 362 on the inner wall of lower pole hole 15 in standing groove 361, and elastic telescopic rod 362 is radially flexible along lower pole hole 15, and the flexible end rigid coupling of elastic telescopic rod 362 supports tight ball 363, and the clamping block 311 is close to one side of stopper 35 and is seted up and support tight groove 364 of tight ball 363 joint adaptation.

When the drilling machine drills, the two clamping blocks 311 in the embodiment of the application are positioned at one end of the linear groove 32 far away from the lower rod hole 15, so that the influence on drilling caused by interference with the drill rod 14 during drilling can be avoided as much as possible; when the lengthened drill rod 14 needs to be clamped by the clamping mechanism 3 on the drill rod 14 which is drilled downwards, firstly, two clamping blocks 311 slide to one end, close to the lower rod hole 15, of the linear groove 32, in order to enable the clamping blocks 311 to have a good clamping effect on the drill rod 14, one side, close to the lower rod hole 15, of each clamping block 311 is an arc surface, and when the clamping blocks 311 slide to one end, close to the lower rod hole 15, of each linear groove 32, one side, close to the lower rod hole 15, of each clamping block 311 is coplanar with the hole wall of one side of the lower rod hole 15, and at the moment, each clamping block 311 can abut against the drill rod 14 which is in inserted fit with the lower rod hole 15; then the clamping block 311 is slid to enable the clamping block 311 to enter the arc line groove 33 to the end, far away from the linear groove 32, of the arc line groove 33, at the moment, one side, far away from the lower rod hole 15, of the clamping block 311 is abutted against one side, close to the lower rod hole 15, of the limiting block 35, the clamping block 311 is abutted against the drill rod 14 through the limiting block 35, and at the moment, the clamping block 311 can be used for clamping the drill rod 14 in insertion fit with the lower rod hole 15.

Further, when the clamping block 311 slides to the end of the arc line groove 33 far away from the straight line groove 32, the elastic expansion rod 362 on the limiting block 35 stretches and retracts to enable the abutting ball 363 to be clamped in the abutting groove 364, and when the clamping block 311 is used for clamping the drill rod 14 in plug fit with the lower rod hole 15, the elastic expansion rod 362 can improve the abutting capacity of the clamping block 311; when the clamping block 311 is used for clamping the drill rod 14 with a rod diameter smaller than the diameter of the lower rod hole 15, the elastic expansion rod 362 extends to enable the abutting ball 363 to drive the clamping block 311 to slide into the clamping groove 34 until the clamping block 311 abuts against the drill rod 14.

When the drill rod 14 needs to be lengthened, the clamping block 311 is made to clamp the drill rod 14 which is drilled down by sliding the clamping block 311, and the drill rod can be conveniently lengthened. With reference to fig. 2, in the embodiment of the present application, a glue layer 313 is attached to one side of the clamping block 311 close to the lower rod hole 15, so that a friction force between the clamping block 311 and the drill rod 14 can be effectively improved, and a clamping effect of the clamping block 311 on the drill rod 14 is further improved; meanwhile, the straight line groove 32, the arc line groove 33 and the clamping groove 34 in the embodiment of the application are all T-shaped grooves, the clamping block 311 is connected to the straight line groove 32, the arc line groove 33 and the clamping groove 34 in a sliding manner through a sliding block (not shown in the figure) in sliding fit with the T-shaped grooves, and the T-shaped grooves can effectively prevent the clamping block 311 from falling off from the straight line groove 32, the arc line groove 33 and the clamping groove 34; furthermore, the upper end surface of the clamping block 311 is provided with a long groove 312 for facilitating sliding of the clamping block 311, and in the embodiment of the present application, the upper end surface of each clamping block 311 is provided with two long grooves 312.

When adding the rod, the clamping mechanism 3 is used for clamping the drill rod 14 which is drilled down, and meanwhile, the motor 12 also needs to move upwards to reserve a space for adding the rod for the drill rod 14 to be lengthened.

Therefore, referring to fig. 1 and fig. 3, the lifting mechanism 2 in the embodiment of the present application includes a bracket 22 and two slide rails 21 fixed to two opposite positions on the handheld platform 111, two sides of the bracket 22 are slidably connected to the two slide rails 21, respectively, and the motor 12 is fixed to one side of the bracket 22 away from the handheld platform 111; the slide rails 21 in the embodiment of the application are T-shaped rails, and can limit the position of the support 22 in the horizontal direction, so as to prevent the slide rails 21 of the support 22 from slipping as much as possible, meanwhile, the length direction of the slide rails 21 is perpendicular to the table-board direction of the handheld platform 111, and the two slide rails 21 are respectively arranged at two opposite positions on two sides of the lower rod hole 15; the handheld platform 111 is further provided with a driving assembly 23 for driving the bracket 22 to slide on the slide rail 21.

Specifically, referring to fig. 3, the driving assembly 23 includes a worm 233 disposed on one side of the slide rail 21, one end of the worm 233 is further fixedly connected to a handle 26 facilitating rotation thereof, one side of the slide rail 21 is fixedly connected to a supporting block 232, the worm 233 is rotatably connected to the slide rail 21 through the supporting block 232, two ends of the worm 233 are respectively engaged with a worm wheel 234, one side of the two slide rails 21 close to each other is fixedly connected to a supporting plate 231, the worm wheel 234 is rotatably connected to the slide rail 21 through the supporting plate 231, meanwhile, a threaded lifting rod 235 is disposed through a central thread of the worm wheel 234, the threaded lifting rod 235 penetrates through the supporting plate 231, and one end of the threaded lifting rod 235 far away from the handheld platform 111 is fixedly connected to one end of the bracket 22 close to the handheld platform 111; the hand-held platform 111 is also provided with a guide for moving the screw lifter 235 only in its axial direction.

The guide piece is a guide rod 24 fixedly connected to the slide rail 21, a guide groove 25 is formed in one side, close to the slide rail 21, of the threaded lifting rod 235, the length direction of the guide groove 25 is the axial direction of the threaded lifting rod 235, and the guide rod 24 is in sliding fit with the guide groove 25; the periphery of the guide rod 24 in the embodiment of the present application is provided with a thread, and the thread on one side of the guide rod 24, which is far away from the thread lifting rod 235 from the slide rail 21, penetrates through the slide rail 21 and extends into the guide groove 25.

After the worker rotates the worm 233, the worm 233 drives the two worm gears 234 engaged with the worm 233 to rotate synchronously, and the screw lifting rod 235 screwed to the centers of the worm gears 234 cannot rotate along with the worm gears 234 due to the limitation of the guide rods 24 and the guide grooves 25, so that the screw lifting rod 235 performs lifting motion along the axial direction thereof, and further drives the bracket 22 fixedly connected to the top ends of the screw lifting rods 235 and the motor 12 fixedly connected to the bracket 22 to perform lifting motion.

Referring back to fig. 1, a threaded hole 41 is further formed in the peripheral wall of the handheld platform 111, a pressing rod 42 is movably arranged on the handheld platform 111, and the pressing rod 42 is connected to the handheld platform 111 through the threaded hole 41 in a threaded manner. In the embodiment of the application, the two sides of the handheld platform 111, which are perpendicular to the ground and not provided with the handle 112, are respectively provided with the threaded holes 41, and each side is provided with two threaded holes 41 at two opposite positions, when the drilling machine cannot smoothly drill when the soil resistance is large, the pressing rod 42 is connected to the handheld platform 111 through the threaded holes 41, and other workers can press the handheld platform 111 with assistance of the pressing rod 42, so that the drilling machine can continuously drill.

In another possible embodiment, the threaded hole 41 is opened at the side of the handheld platform 111 where the clamping mechanism 3 is disposed, and the pressing rod 42 is an L-shaped rod in order to facilitate the worker to press down the handheld platform 111 through the pressing rod 42.

The implementation principle of the semi-automatic small-thread drilling machine in the embodiment of the application is as follows: when a rod needs to be added, firstly, the output ends of the drill rod 14 and the motor 12 are separated, then the two clamping blocks 311 are slid, the two clamping blocks 311 are abutted against the drill rod 14, then the abutting ball 363 is driven to be clamped in the abutting groove 364 through the elastic telescopic rod 362, so that the clamping blocks 311 are abutted against the drill rod 14, clamping of the clamping blocks 311 on the drill rod 14 is realized, then the worm 233 is driven to rotate through the handle 26, the worm 233 drives the worm wheel 234 meshed with the worm wheel 233 to rotate, the threaded lifting rod 235 in threaded connection with the center of the worm wheel 234 cannot rotate along with the worm wheel 234 due to the limitation of the guide rod 24, and then the threaded lifting rod rises in the direction perpendicular to the table top of the handheld platform 111, the support 22 and the motor 12 are sequentially driven to rise, and a rod adding space is reserved; after the rod is added, the worm 233 is rotated in the opposite direction, so that the threaded lifting rod 235 descends, the support 22, the motor 12 and the drill rod 14 connected to the output end of the motor 12 are sequentially driven to descend, and after the lengthened drill rod 14 extends out of the handheld platform 111, drilling can be continued.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A semi-automatic small thread drilling machine comprises a handheld platform (111), a motor (12) arranged on the handheld platform (111), a speed controller, a drill bit (13) and a plurality of drill rods (14), wherein the drill rods (14) are connected with the drill bit (13), the output end of the motor (12) and other drill rods (14) through threads, and the semi-automatic small thread drilling machine is characterized in that: a lower rod hole (15) which is inserted into the drill rod (14) is formed in the handheld platform (111), a lifting mechanism (2) which is used for driving the motor (12) to lift on the handheld platform (111) is arranged on the handheld platform (111), and the lifting direction of the motor (12) is perpendicular to the table surface of the handheld platform (111); and a clamping mechanism (3) used for clamping the drill rod (14) during rod adding is further arranged on the handheld platform (111) on the periphery of the lower rod hole (15).

2. A semi-automatic small screw drilling machine according to claim 1, characterized in that: the clamping mechanism (3) comprises two clamping blocks (311), linear grooves (32) are formed in the handheld platform (111) at two opposite positions of the lower rod hole (15), the length direction of each linear groove (32) is the radial direction of the lower rod hole (15), the clamping blocks (311) are connected to the linear grooves (32) in a sliding mode, and when the clamping blocks (311) slide to one ends, close to the lower rod hole (15), of the linear grooves (32), one sides, close to the lower rod hole (15), of the clamping blocks (311) are abutted to the drill rods (14) matched with the lower rod hole (15) in an inserted mode;

arc-shaped wire grooves (33) are arranged on the handheld platform (111) at two opposite positions of the lower rod hole (15), the arc-shaped wire groove (33) is communicated with one end of the straight line groove (32) close to the lower rod hole (15), the clamping block (311) is connected with the arc-shaped wire groove (33) in a sliding way from one end of the straight line groove (32) close to the lower rod hole (15), a limiting block (35) is fixedly connected to one side of the arc line groove (33) far away from the lower rod hole (15), when the clamping block (311) slides to one end of the arc-shaped groove (33) far away from the linear groove (32), one side of the clamping block (311) close to the lower rod hole (15) is abutted against the drill rod (14) in splicing fit with the lower rod hole (15), and one side of the clamping block (311) far away from the lower rod hole (15) is abutted against the limiting block (35).

3. A semi-automatic small screw drilling machine according to claim 2, characterized in that: a clamping groove (34) is formed in one side, close to the lower rod hole (15), of the arc-shaped line groove (33), the clamping groove (34) is communicated with one end, far away from the linear groove (32), of the arc-shaped line groove (33), and the clamping block (311) is connected to the clamping groove (34) in a sliding mode from one end, far away from the linear groove (32), of the arc-shaped line groove (33); the limiting block (35) is further provided with a pressing component (36) for driving the clamping block (311) to tightly press against the drill rod (14) from the clamping groove (34).

4. A semi-automatic small screw drilling machine according to claim 3, characterized in that: the clamping device is characterized in that a placing groove (361) is formed in one side, close to the lower rod hole (15), of the limiting block (35), the abutting assembly (36) comprises an elastic telescopic rod (362) arranged in the placing groove (361), the elastic telescopic rod (362) stretches along the lower rod hole (15) in the radial direction, an abutting ball (363) is fixedly connected to the stretching end of the elastic telescopic rod (362), and an abutting groove (364) matched with the abutting ball (363) in a clamping mode is formed in one side, close to the limiting block (35), of the clamping block (311).

5. A semi-automatic small screw drilling machine according to claim 1, characterized in that: elevating system (2) include support (22) and set up in slide rail (21) of two relative position on handheld platform (111), support (22) both sides respectively with two slide rail (21) slide and connect, motor (12) set up in on support (22), still be provided with on handheld platform (111) and be used for driving about support (22) are in slide rail (21) go up drive assembly (23) that slide.

6. A semi-automatic small screw drilling machine according to claim 5, characterized in that: the driving assembly (23) comprises a worm (233) arranged on one side of the sliding rail (21), two ends of the worm (233) are respectively connected with a worm wheel (234) in a meshed mode, the center of the worm wheel (234) is connected with a threaded lifting rod (235) in a penetrating mode through a threaded connection mode, and one end, far away from the handheld platform (111), of the threaded lifting rod (235) is fixedly connected with one end of the support (22); the handheld platform (111) is also provided with a guide piece used for enabling the threaded lifting rod (235) to move only along the axial direction of the threaded lifting rod.

7. A semi-automatic small screw drilling machine according to claim 6, characterized in that: the guide piece is including setting up guide bar (24) on slide rail (21), guide way (25) have been seted up to screw thread lifter (235) week side, guide bar (24) with guide way (25) sliding fit.

8. A semi-automatic small screw drill according to any one of claims 1 to 7, characterized in that: the peripheral wall of the handheld platform (111) is further provided with a threaded hole (41), a pressure lever (42) is movably arranged on the handheld platform (111), and the pressure lever (42) is in threaded connection with the handheld platform (111) through the threaded hole (41).