CN209903613U - Construction electric drilling machine with shock-absorbing function - Google Patents

Abstract

The utility model relates to the technical field of building construction equipment, in particular to a construction electric drilling machine with a damping function, which comprises a walking machine base, a constant force air spring, a supporting base, a drilling motor and a guide frame, wherein one end of the supporting base is connected with one end of the top of the walking machine base through an elastic buffer part, the constant force air spring is arranged outside the left side of the supporting base, the drilling motor is arranged on the front side surface of the supporting base in an inverted manner, the guide frame can be movably sleeved at the free end of the supporting base, the inner side surface of the guide frame is fixedly connected with the outer part of the drilling motor, the back side of the supporting base is provided with a manual lower pressing part, the left side and the right side of the walking machine base are respectively provided with a pressure boosting reset part, the inner side of the guide frame is elastically matched with two pressure boosting reset parts, the left, and the vibration force during working is buffered, and the drilling quality and efficiency are improved.

Description

Construction electric drilling machine with shock-absorbing function

Technical Field

The utility model relates to a construction equipment technical field specifically, relates to a construction electric drill with shock-absorbing function.

Background

Electric drilling machines are special tools for drilling holes in construction equipment. The electric drilling machine has wide application range. Most of electric drilling machines are handheld in the market at present, the electric drilling machines have different weights according to different powers, the traditional medium-sized electric drilling machine has larger weight, the labor intensity is high when the electric drilling machine is manually held for drilling, and the requirement on physical ability of a user is high; in addition, the electric drilling machine can generate large vibration in the working process, and the vibration sense can be transmitted to an operator, so that the operation stability of the operator is influenced, and the drilling quality is influenced; and because some construction sites are too big, drilling quantity is too much, need frequent moving electric drill, electric drill self weight is big, needs artifical hand to carry, has also strengthened operator's intensity of labour like this.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a construction electric drill with shock-absorbing function.

The utility model discloses a construction electric drilling machine with shock-absorbing function, which comprises a walking frame, a constant force air spring, a supporting seat, a drilling motor and a guide frame, wherein one end of the supporting seat is connected with one end of the top of the walking frame through an elastic buffer part, the constant force air spring is arranged outside the left side of the supporting seat and is used for matching the free end of the supporting seat to rotate upwards to 90 degrees, the drilling motor is arranged on the front side surface of the supporting seat when the supporting seat is in a vertical posture in an inverted manner, the guide frame can be movably sleeved at the free end of the supporting seat, the inner side surface of the guide frame is fixedly connected with the outside of the drilling motor, the back side surface of the supporting seat is provided with a manual pressing piece in transmission connection with the guide frame, the left side and the right side of the walking frame are respectively provided with a vertical through groove, each vertical through groove is, the left side and the right side of the walking machine base are respectively provided with a damping piece which can be vertically adjusted.

Furthermore, an output main shaft of the drilling motor is provided with a drill bit, and the drill bit is in transmission connection with the drilling motor through a gearbox.

Further, the rod body end of the constant-force air spring is in shaft joint fit with one end, far away from the elastic buffer piece, of the walking machine base, the piston rod end of the constant-force air spring is hinged with a compensation shaft, a protruding block is arranged on the back side of the supporting seat, a buffer shaft coaxial with the compensation shaft is hinged on the protruding block, and the buffer shaft is elastically connected with the compensation shaft through an anti-vibration spring.

Further, the pressure boost piece that resets includes the movable block, goes up spring and lower spring, the vertical clearance fit of groove face that the movable block and vertical logical inslot led to, the movable block still with the medial surface fixed connection of leading truck, the top and the bottom of movable block are respectively through last spring and lower spring and the vertical roof and the diapire elastic connection that lead to the inslot.

Further, the arc-shaped cavity used for containing the drilling motor body is formed in the front side face of the supporting seat, the top plate is installed at the free end of the supporting seat, the large spring is arranged at the bottom of the top plate, the top plate is elastically connected with the end portion of the drilling motor body through the large spring, and the contraction direction of the large spring is the same as the contraction direction of the upper spring and the lower spring.

Furthermore, the manual lower pressing piece comprises a fixed rack, a movable gear and a lower pressing rod, the fixed rack is vertically fixedly connected with the guide frame, the movable gear is connected to the side of the fixed rack in a shaft mode and meshed with the fixed rack, one end of the lower pressing rod is fixedly connected with the movable rack in a coaxial mode, and when the large spring, the upper spring and the lower spring are all located under the normal state, the free end of the lower pressing rod is vertically located above the fixed rack.

Further, the shock attenuation piece includes the lead screw, the shock attenuation mobile jib, auxiliary rod and roll bulb, the through-hole has been seted up to the upper surface of supporting seat free end, through-hole top-down runs through the supporting seat, the lead screw sets up in the through-hole, and set up the helicla flute with lead screw matched with in the through-hole, the coaxial bottom at the lead screw of fixing at the shock attenuation mobile jib, the auxiliary rod is in under the shock attenuation mobile jib, and pass through damping spring elastic connection between the two, roll bulb hub joint is in the bottom of auxiliary rod, the top of lead screw is located the through-hole top all the time, auxiliary rod and a drill bit in two shock attenuation pieces constitute an isosceles triangle, the centre of a circle of two auxiliary rods and the three.

Further, elastic buffer includes U template and cross type piece, and cross type groove has been seted up at the top of walking frame, and the cross type inslot that locates that the cross type piece can be movable, four tip of cross type piece respectively through a fine motion spring and the inslot face elastic connection in cross type groove, and the U template is the top of horizontal installation at the cross type piece, and the axle-receiving end of supporting seat articulates in the opening of U template.

Furthermore, a fixed block which is opposite to the shaft connecting end of the supporting seat is arranged in the opening of the U-shaped plate, a horizontal positioning bolt rod is installed on the fixed block, and a bolt hole which is opposite to the positioning bolt rod is formed in the shaft connecting end of the supporting seat.

Has the advantages that: the utility model discloses a construction electric drill with shock-absorbing function, when carrying out the drilling operation to ground, the manual work is through the constant force air spring with the supporting seat upset to 90 degrees gestures, ensure that it is vertical, then adjust two shock attenuation pieces to ground contact again, then in screw in the positioning bolt pole to the helicla flute, ensure the stability that the supporting seat is vertical gesture, alleviate the operating pressure of constant force air spring, then the manual work is promoted and cooperate the pressure boost reset piece to make the guide piece drive drilling motor and implement the slow-down decline through the manual lower pressure member, impel drilling motor can drive the drill bit high-speed rotation, and contact ground and implement drilling; in the process, the depth distance of the drill bit is observed manually by naked eyes, and then the manual pressing piece is slowly controlled to drive the drill bit to descend; when the drill bit works, part of the generated vibration force is counteracted by the damping piece, and the rest part is counteracted by the elastic damping piece; when the wall surface is drilled, the whole body of the utility model can be installed on the screw rod lifter, the supporting seat does not need to be turned over at the moment and is in a horizontal posture, and the damping piece is manually adjusted to be in contact with the wall surface; in addition no matter need be right at ground or wall when the practicality removes, need not to adjust the damper, can directly remove through the rotation nature of roll bulb, the intensity of labour of the reduction drilling operation that this practicality can be very big to the vibrational force of buffering during operation improves drilling quality and operating efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic plan view of the present invention;

fig. 3 is a schematic perspective view of the second embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is an enlarged view of FIG. 3 at B;

fig. 6 is a schematic view of a partial three-dimensional structure of the present invention;

fig. 7 is a schematic three-dimensional structure diagram of the present invention;

description of reference numerals: a traveling machine base 1 and a cross-shaped groove 1 a.

A constant-force gas spring 2, a compensation shaft 2a, a convex block 2b and a shock-absorbing spring 2 c.

Supporting seat 3, vertical logical groove 3a, leading truck 3b, big spring 3 d.

The U-shaped plate 4, a cross-shaped block 4a, a micro-motion spring 4b and a positioning bolt rod 4 c.

A fixed rack 5, a moving gear 5a and a lower pressing rod 5 b.

An upper spring 6 and a lower spring 6 a.

The damping device comprises a screw rod 7, a damping main rod 7a, an auxiliary rod 7b, a rolling ball head 7c and a damping spring 7 d.

A drilling motor 8 and a drill bit 8 b.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 7, a construction electric drilling machine with a shock absorption function comprises a walking machine base 1, a constant force air spring 2, a supporting base 3, a drilling motor 8 and a guide frame 3b, wherein one end of the supporting base 3 is connected with one end of the top of the walking machine base 1 through an elastic buffer part, the constant force air spring 2 is installed outside the left side of the supporting base 3 and is used for matching the free end of the supporting base 3 to rotate upwards to 90 degrees, the drilling motor 8 is inversely arranged on the front side surface of the supporting base 3 in a vertical posture, the guide frame 3b can be movably sleeved on the free end of the supporting base 3, the inner side surface of the guide frame 3b is fixedly connected with the outer part of the drilling motor 8, the back side surface of the supporting base 3 is provided with a manual pressing piece in transmission connection with the guide frame 3b, the left side and the right side of the walking machine base 1 are respectively provided with a vertical through groove 3, the inboard and two pressure boost of leading truck 3b reset the piece elastic fit, are equipped with the shock attenuation piece that can vertically adjust in the left and right sides of walking frame 1 respectively.

An output main shaft of the drilling motor 8 is provided with a drill bit 8b, and the drill bit 8b is in transmission connection with the drilling motor 8 through a gearbox.

The end part of the rod body of the constant-force gas spring 2 is in shaft joint fit with one end of the walking machine base 1, which is far away from the elastic buffer part, the end part of the piston rod of the constant-force gas spring 2 is hinged with a compensation shaft 2a, the back side of the supporting seat 3 is provided with a convex block 2b, the convex block 2b is hinged with a buffer shaft which is coaxial with the compensation shaft 2a, and the buffer shaft is elastically connected with the compensation shaft 2a through a shock-absorbing spring 2 c; the constant-force gas spring 2 is used for matching with the turning of the supporting seat 3, and when the ground object is drilled, the supporting seat 3 is turned to a vertical posture, namely, the supporting seat and the walking machine base 1 form a right-angle matching posture; at the moment, the drilling motor 8 and the drill bit 8b are both positioned right above the ground, and drilling operation can be carried out; meanwhile, in the overturning process, the acting force of the constant-force gas spring 2 is needed, and the inertia force in the overturning or resetting process is relieved, so that the constant-force gas spring has a certain damping and guiding function, the force needed for manually overturning the supporting seat 3 is reduced, and the inertia force is avoided; meanwhile, when the drilling motor 8 works, the vibration force generated by the drilling motor prevents the influence on the installation relation of the constant-force gas spring 2 and the supporting seat 3, so that the shock-absorbing spring 2c between the buffer shaft and the compensation shaft 2a can offset most of the vibration force; while also not affecting the synchronous movement of the buffer and compensation shafts 2 a.

The pressurizing reset piece comprises a movable block, an upper spring 6 and a lower spring 6a, the movable block is vertically and movably matched with the groove surface in the vertical through groove 3a, the movable block is also fixedly connected with the inner side surface of the guide frame 3b, and the top and the bottom of the movable block are respectively and elastically connected with the top wall and the bottom wall in the vertical through groove 3a through the upper spring 6 and the lower spring 6 a; when the manual pressing piece is used for promoting the guide frame 3b to directly move with the drilling motor 8, the guide frame 3b is prevented from generating inertia force at the moment, so that the upper spring 6 and the lower spring 6a are arranged, the movable block is used as the guide force of the movable stroke of the guide frame 3b, and the stability of the guide frame 3b during movement is ensured.

An arc-shaped concave cavity used for accommodating the machine body of the drilling motor 8 is formed in the front side face of the supporting seat 3, a top plate is installed at the free end of the supporting seat 3, a large spring 3d is arranged at the bottom of the top plate, the top plate is elastically connected with the machine body end portion of the drilling motor 8 through the large spring 3d, and the contraction direction of the large spring 3d is the same as that of the upper spring 6 and the lower spring 6 a; big spring 3d is used for cooperating upper spring 6 and lower spring 6a, and the purpose of three is the same promptly, and big spring 3d prevents because gravity problem, drilling motor 8 self weight problem mainly when supporting seat 3 is in vertical gesture for the work load of upper spring 6 and lower spring 6a is too big, and it is used for alleviateing the operating pressure of big spring 3d and lower spring 6a promptly.

The manual pressing piece comprises a fixed rack 5, a movable gear 5a and a pressing rod 5b, the fixed rack 5 is vertically and fixedly connected with the guide frame 3b, the movable gear 5a is connected to the side of the fixed rack 5 in a shaft mode and meshed with the fixed rack 5a, one end of the pressing rod 5b is coaxially and fixedly connected with the movable rack, and when the large spring 3d, the upper spring 6 and the lower spring 6a are all in a normal state, the free end of the pressing rod 5b is vertically positioned above the fixed rack 5; the free end of the lower pressing rod 5b is manually held by a hand, and the free end is slowly pulled to rotate, so that the movable gear 5a rotates in the process and further engages with the fixed rack 5 to enable the fixed rack 5 to drive the guide frame 3b to linearly move, and the mode is labor-saving; meanwhile, in the rotating process of manually holding the lower pressing rod 5b, the manual work can observe the travel of the guide frame 3b with the drilling motor 8 to move through naked eyes, and whether the drilling work of the drill bit 8b is synchronized or not is judged.

The damping part comprises a screw rod 7, a damping main rod 7a, an auxiliary rod 7b and a rolling ball head 7c, a through hole is formed in the upper surface of the free end of the supporting seat 3, the through hole penetrates through the supporting seat 3 from top to bottom, the screw rod 7 is arranged in the through hole, a spiral groove matched with the screw rod 7 is formed in the through hole, the damping main rod 7a is coaxially fixed at the bottom end of the screw rod 7, the auxiliary rod 7b is positioned under the damping main rod 7a and is elastically connected with the damping main rod 7a through a damping spring 7d, the rolling ball head 7c is connected to the bottom end of the auxiliary rod 7b in a shaft mode, the top end of the screw rod 7 is always positioned above the through hole, the auxiliary rods 7b and a drill bit 8b in the two damping parts form an isosceles triangle, and the circle centers of the; when the drilling motor 8 performs drilling operation on the ground or the wall, after the support base 3 is adjusted by a worker, namely, after the support base is opposite to an operation target, the screw rod 7 is rotated to promote the screw rod 7 to generate axial displacement in the through hole, so that the damping main rod 7a, the auxiliary rod 7b and the rolling ball head 7c are promoted to contact the surface of an operation object; and keep certain hugging closely, then impel leading truck 3b to take drilling motor 8 and drill bit 8b to move the back through manual pushing down the piece, drill bit 8b contacts the construction object, realize drilling, simultaneously because the vibration that the drilling operation produced, then the part is offset by damping spring 7d between sub-pole 7b and the shock attenuation mobile jib 7a in the shock attenuation piece, drilling and two sub-pole 7 b's isosceles triangle set up, make drill bit 8b when the drilling operation, it is more stable, when rolling bulb 7c has satisfied drilling whole equipment and has relied on the operation unit to carry out the micro-displacement, satisfied the displacement demand, and need not adjust the shock attenuation piece.

The elastic buffer part comprises a U-shaped plate 4 and a cross-shaped block 4a, a cross-shaped groove 1a is formed in the top of the walking machine base 1, the cross-shaped block 4a can be movably arranged in the cross-shaped groove 1a, four end parts of the cross-shaped block 4a are respectively and elastically connected with a groove surface in the cross-shaped groove 1a through a micro-motion spring 4b, the U-shaped plate 4 is horizontally arranged at the top of the cross-shaped block 4a, and a shaft-connecting end of the supporting seat 3 is hinged in an opening of the U-shaped plate 4; after the drill bit 8b starts to operate, the vibration force can be partially transmitted to the supporting seat 3, the supporting seat 3 is transmitted to the U-shaped plate 4, in order to ensure the stability of the shaft connection end of the supporting seat 3, the broken shaft is prevented from occurring, the U-shaped plate 4 can depend on the cross-shaped block 4a to generate irregular synchronous shaking according to the vibration force, the cross-shaped block 4a depends on the micro-spring 4b to perform irregular movement in the cross-shaped groove 1a, and the safety of the shaft connection end of the supporting seat 3 is ensured.

A fixed block which is over against the axial connection end of the supporting seat 3 is arranged in the opening of the U-shaped plate 4, a horizontal positioning bolt rod 4c is arranged on the fixed block, and a bolt hole which is over against the positioning bolt rod 4c is arranged at the axial connection end of the supporting seat 3; when needs implement drilling to ground, 3 upset of supporting seat are to vertical gesture back promptly, in order to alleviate the operating pressure of constant force air spring 2, artifical rotatable positioning bolt pole 4c, make it take place axial displacement, and then partial screw in to the bolt hole, the butt joint has been constituted, at 2 effort of cooperation constant force air spring, effectively make supporting seat 3 be in vertical gesture, and simultaneously, the free end right side of supporting seat 3 also can set up the handle, during the drilling operation, for safety consideration, the manual work can be in handheld handle and ensure stability.

The working principle is as follows: when drilling on the ground, manually overturning the supporting seat 3 to a 90-degree posture through the constant-force air spring 2 to ensure that the supporting seat is vertical, then adjusting the two damping parts to be in contact with the ground, screwing the positioning bolt rod 4c into the spiral groove to ensure the stability of the vertical posture of the supporting seat 3, relieving the working pressure of the constant-force air spring 2, manually enabling the guide part to drive the drilling motor 8 to slowly descend by pushing the pressing part manually and matching with the pressurizing reset part, and enabling the drilling motor 8 to drive the drill bit 8b to rotate at a high speed and to be in contact with the ground to drill; in the process, the depth distance of the drill bit 8b is manually observed by naked eyes, and then the manual pressing piece is slowly controlled to drive the drill bit 8b to descend; when the drill bit 8b works, part of the generated vibration force is counteracted by the shock absorption piece, and the rest part is counteracted by the elastic buffer piece; when the wall surface is drilled, the whole body of the utility model can be installed on the screw rod lifter, at the moment, the supporting seat 3 does not need to be turned over and is in a horizontal posture, and the damping piece is manually adjusted to be in contact with the wall surface; in addition, when the utility model is moved on the ground or the wall, the damping piece is not required to be adjusted, and the ball head can be moved directly through the rotation of the rolling ball head 7 c.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. The utility model provides a construction electric drill with shock-absorbing function which characterized in that: comprises a walking machine base (1), a constant-force air spring (2), a supporting seat (3), a drilling motor (8) and a guide frame (3b), wherein one end of the supporting seat (3) is connected with one end of the top of the walking machine base (1) through an elastic buffer part in a shaft way, the constant-force air spring (2) is arranged outside the left side of the supporting seat (3) and is used for matching the free end of the supporting seat (3) to rotate upwards to 90 degrees, the drilling motor (8) is arranged on the front side surface of the supporting seat (3) in a vertical posture in an inverted way, the guide frame (3b) can be movably sleeved at the free end of the supporting seat (3), the inner side surface of the guide frame (3b) is fixedly connected with the outer part of the drilling motor (8), the back side surface of the supporting seat (3) is provided with a manual pressing part in transmission connection with the guide frame (3b), the outer parts of the left side and, all be equipped with a pressure boost in every vertical logical groove (3a) and reset the piece, the inboard and two pressure boosts of leading truck (3b) reset a piece elastic fit, are equipped with a damping piece that can vertically adjust in the left and right sides of walking frame (1) respectively.

2. The construction electric drill with the shock absorption function as claimed in claim 1, wherein: an output main shaft of the drilling motor (8) is provided with a drill bit (8b), and the drill bit (8b) is in transmission connection with the drilling motor (8) through a gearbox.

3. The construction electric drill with the shock absorption function as claimed in claim 1, wherein: the end part of the rod body of the constant-force air spring (2) is in shaft joint fit with one end, far away from the elastic buffer part, of the walking machine base (1), the end part of the piston rod of the constant-force air spring (2) is hinged with a compensation shaft (2a), a convex block (2b) is arranged on the back side of the supporting base (3), a buffer shaft coaxial with the compensation shaft (2a) is hinged on the convex block (2b), and the buffer shaft is elastically connected with the compensation shaft (2a) through an anti-vibration spring (2 c).

4. The construction electric drill with the shock absorption function as claimed in claim 1, wherein: the pressure boost resets and includes movable block, upper spring (6) and lower spring (6a), the vertical clearance fit of groove face in movable block and the vertical logical groove (3a), the movable block still with the medial surface fixed connection of leading truck (3b), the top and the bottom of movable block are respectively through upper spring (6) and lower spring (6a) and roof and diapire elastic connection in the vertical logical groove (3 a).

5. The construction electric drill with the shock absorption function as claimed in claim 4, wherein: the arc-shaped concave cavity used for containing the drilling motor (8) body is formed in the front side face of the supporting seat (3), the top plate is installed at the free end of the supporting seat (3), a large spring (3d) is arranged at the bottom of the top plate, the top plate is elastically connected with the end portion of the body of the drilling motor (8) through the large spring (3d), and the contraction direction of the large spring (3d) is the same as that of the upper spring (6) and the lower spring (6 a).

6. The construction electric drill with the shock absorption function as claimed in claim 5, wherein: manual pushing down the piece including decide rack (5), move gear (5a) and depression bar (5b) down, decide rack (5) be vertical and leading truck (3b) fixed connection, move gear (5a) coupling in the side of deciding rack (5), and the two meshes mutually, the one end and the movable rack coaxial fixed connection of depression bar (5b) down, big spring (3d), when going up spring (6) and lower spring (6a) all are in the normality down, the free end of depression bar (5b) is the vertical top that is located decide rack (5) down.

7. The construction electric drill with the shock absorption function as claimed in claim 1, wherein: the damping piece comprises a screw rod (7), a damping main rod (7a), an auxiliary rod (7b) and a rolling ball head (7c), the upper surface of the free end of the supporting seat (3) is provided with a through hole, the through hole penetrates through the supporting seat (3) from top to bottom, the screw rod (7) is arranged in the through hole, a spiral groove matched with the screw rod (7) is arranged in the through hole, the damping main rod (7a) is coaxially fixed at the bottom end of the screw rod (7), the auxiliary rod (7b) is positioned under the damping main rod (7a), the two shock-absorbing parts are elastically connected through a shock-absorbing spring (7d), a rolling ball head (7c) is connected to the bottom end of an auxiliary rod (7b) in a shaft mode, the top end of a screw rod (7) is located above the through hole all the time, the auxiliary rod (7b) and a drill bit (8b) in the two shock-absorbing parts form an isosceles triangle, and the circle centers of the two auxiliary rods (7b) and the circle center of the drill bit (8b) are respectively three vertexes of the isosceles triangle.

8. The construction electric drill with the shock absorption function as claimed in claim 1, wherein: elastic buffer member includes U template (4) and cross type piece (4a), cross type groove (1a) have been seted up at the top of walking frame (1), locate in cross type groove (1a) that cross type piece (4a) can move about, four tip of cross type piece (4a) are respectively through groove face elastic connection in a fine motion spring (4b) and cross type groove (1a), U template (4) are the top of horizontal installation in cross type piece (4a), the axle joint end of supporting seat (3) articulates in the opening of U template (4).

9. The construction electric drill with the shock absorbing function as set forth in claim 8, wherein: a fixed block which is just opposite to the shaft connecting end of the supporting seat (3) is arranged in the opening of the U-shaped plate (4), a horizontal positioning bolt rod (4c) is installed on the fixed block, and a bolt hole which is just opposite to the positioning bolt rod (4c) is formed in the shaft connecting end of the supporting seat (3).

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