Construction hoisting and drilling apparatus

Abstract

The application provides an engineering construction lifting drilling device, which comprises a support assembly and a drilling machine driving mechanism, a fixed vertical sleeve is vertically installed on the upper side of the middle part of the bottom plate of the support assembly, a first telescopic sleeve is respectively matched and sleeved in the vertical inner cavity of the fixed vertical sleeve, the telescopic rod of the drilling machine driving mechanism is sleeved in the first telescopic sleeve of the fixed vertical sleeve, a fixed pendulum rod is hinged on the top of the telescopic sleeve, a hinge seat is fixed on the top of the telescopic rod, a vertical electric drill fixing frame is fixed on the upper part of the hinge seat, an electric drill is fixedly sleeved on the upper end of the electric drill fixing frame, a movable pendulum rod is hinged on the hinge seat through a pin shaft, the lower end of the movable pendulum rod is hinged with the fixed pendulum rod, and a driving handle is connected with the tail end of the movable pendulum rod or the fixed pendulum rod. The improved scheme can realize more accurate drilling and higher working efficiency, reduces the operation difficulty, and can realize dust reduction and environmental protection performance after the dust collection system is arranged, so that the green construction requirement is met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of engineering construction lifting drilling tools, and particularly relates to an engineering construction lifting drilling equipment. BACKGROUND

[0002] The lifting drilling equipment used in engineering construction is used for drilling holes in various materials (such as wood, metal, concrete, etc.). It mainly consists of a drill bit driven by an electric or manual motor and a lifting mechanism that can lift or lower the drill bit along a vertical axis. The operator needs to accurately control the depth and position of the drill bit, and also make the drill bit be lifted to a safe position when not needed. During the operation, the operator can control the lifting of the drilling shaft through the handle or electric motor, so as to drill holes of the required depth and position on the workpiece.

[0003] In the prior art, the lifting drilling equipment often encounters some problems in the construction process, for example, in the lifting process of the traditional lifting drilling tool, the shaft center often deviates due to mechanical errors or operation problems. The shaft center deviation will reduce the drilling accuracy, and even may affect the safety of the building structure. In the traditional drilling equipment, the drilling position is mainly positioned by the operator through the naked eye. This method is not only cumbersome to operate, but also difficult to ensure the positioning accuracy. Especially in large-scale engineering, because the working range is large, the positioning of this method is more difficult. The traditional drilling equipment may move during drilling due to vibration or uneven ground, which will reduce the drilling accuracy and may cause safety problems to the workers.

[0004] A high-picking house ceiling roof drilling device is disclosed in CN203863076U. The device is provided with a four-bar linkage device connected with an electric drill. The four-bar linkage device mainly consists of upright long and short rods and upper and lower parallel rods. The upright long and short rods and the upper and lower parallel rods are parallel to each other. The lower parts of the upright long rods are connected with the same ends of the upper and lower parallel rods through A and B movable bolts respectively. The upper parts of the upright short rods are connected with the other ends of the upper and lower parallel rods through C and D movable bolts respectively. The upper end of the upright long rod is connected with the electric drill. This scheme and other existing technologies generally use a parallel four-bar linkage to drive the drill to lift. Although the parallel four-bar linkage can ensure that the drill always lifts vertically, the shaft center of the drill will deviate left and right during lifting. The vertical lifting of the drill and the left and right deviation are synchronous. When the drill rod of the drill is rotated into the ceiling drilling, the continuously rising drill also has a lateral deviation force. Obviously, this scheme will damage the drill rod, easily break the drill rod, and even cannot effectively push the drill upward.

[0005] In addition, the prior art generally does not adopt effective drilling positioning technology, resulting in drilling work in a rough range during work, affecting construction precision, and easily leading to inconsistent problems of drilling after construction. SUMMARY

[0006] In view of the problems of axial deviation and lack of drill positioning during the lifting of the existing lifting drill, the present application provides an engineering construction lifting drilling equipment, which realizes coaxial lifting of the drill, laser positioning and linkage transfer function, is simple to operate, high in precision, and improves construction efficiency and construction quality.

[0007] The technical problem of the present application is solved by adopting an engineering construction lifting drilling equipment, which comprises a support assembly and a drilling machine driving mechanism. The support assembly comprises a bottom plate, support arms, universal wheels, a fixed vertical sleeve and telescopic sleeves. The support arms are fixedly arranged on the periphery of the bottom plate. The lower ends of the support arms are respectively provided with the universal wheels. The upper side of the middle part of the bottom plate is vertically provided with the fixed vertical sleeve. The fixed vertical sleeve has at least one vertical inner cavity. The first telescopic sleeve is matched and sleeved in the vertical inner cavity. The upper end port side wall of the vertical inner cavity is provided with a lock wire for fixing the telescopic sleeve inside. The drilling machine driving mechanism comprises a telescopic rod, a hinged seat, a fixed swing rod, a movable swing rod, a driving handle, an electric drill and an electric drill fixing frame. The telescopic rod is sleeved in the first telescopic sleeve of the fixed vertical sleeve. The top of the telescopic sleeve is hingedly provided with the fixed swing rod. The top of the telescopic rod is fixedly provided with the hinged seat. The upper part of the hinged seat is fixedly provided with the vertical electric drill fixing frame. The upper end of the electric drill fixing frame is fixedly sleeved with the electric drill. The hinged seat is hingedly provided with the movable swing rod through a pin shaft. The lower end of the movable swing rod is hingedly connected with the fixed swing rod. The ends of the movable swing rod or the fixed swing rod are extendedly connected with the driving handle. By pressing the driving handle upward or downward, the included angle between the fixed swing rod and the movable swing rod can be changed, and the telescopic degree of the telescopic rod in the first telescopic sleeve is changed, so that the electric drill along the same axis is lifted.

[0008] Preferably, the auxiliary frame assembly comprises a fixed horizontal rod, a handrail frame, a hand brake rod, a brake line pipe and a brake mechanism. The fixed horizontal rod is fixedly arranged on both sides of the fixed vertical sleeve. The fixed horizontal rod is fixedly provided with the U-shaped handrail frame. The U-shaped handrail frame comprises two side rods and a hand rod. The inner walls of the two side rods are provided with sliding holes. The hand brake rod is sleeved in the two side sliding holes. The two ends of the hand brake rod are connected with the hand rod through springs to make the hand brake rod away from the hand rod. The brake mechanism is arranged on one or more universal wheels. The two ends of the hand brake rod are connected with the brake mechanism through the brake line pipe.

[0009] Preferably, the fixed vertical sleeve comprises a composite sleeve with two vertical inner cavities. The first telescopic sleeve and the second telescopic sleeve are matched and sleeved in the vertical inner cavities, respectively. The upper end port side wall of each vertical inner cavity is provided with a lock wire for fixing the telescopic sleeve inside.

[0010] Preferably, a support seat is fixed on the top of the second telescopic sleeve parallel to the telescopic rod, which includes a fixed sleeve, a connecting rod and a guide sleeve, the telescopic rod is sleeved in the guide sleeve, and the support seat forms a lower limit blocking relationship with the articulated seat to prevent the articulated seat from falling excessively.

[0011] Preferably, a laser positioning mechanism is installed on the top of the second telescopic sleeve parallel to the telescopic rod, which includes a fixed sleeve, a rotating rod, a swing arm, an assembly sleeve and a laser, the fixed sleeve is fixed on the top of the second telescopic sleeve, the rotating rod is matched and sleeved in the fixed sleeve, the bottom of the fixed sleeve is fixed with a base, the side and back of the base are respectively provided with a side plate and a back plate, the positioning seat is fixed on the side plate, and a torsional spring is installed between the rotating rod and the fixed sleeve to make the rotating rod naturally deviate to the side plate direction and be supported in the positioning groove of the positioning seat; the swing arm is vertically fixed on the top of the rotating rod, the assembly sleeve is vertically fixed on the end of the swing arm, and the laser is matched and sleeved in the assembly sleeve; under the action of the torsional spring, the laser is located on the upper side of the drilling tool, and the axis of the laser is consistent with the axis of the drilling tool drill rod; the linkage transfer mechanism is arranged on the back plate, when the drilling tool moves upward, the linkage transfer mechanism drives the rotating rod to carry the laser to transfer to one side of the back plate to avoid the drilling tool.

[0012] Preferably, the linkage transfer mechanism includes a wire tube and a pull wire, the upper end of the wire tube is supported in the rear side seat of the wire hole one of the back wall, the upper end of the pull wire is fixedly connected with the front end of the rotating rod after penetrating through the wire hole one, the lower side of the connecting rod is provided with a pipe seat, the center of the pipe seat is provided with a wire hole two, the lower end of the wire tube is supported in the wire hole two of the pipe seat, and the lower end of the pull wire is fixed on the side wire seat of the articulated seat after penetrating through the wire hole two.

[0013] Preferably, an end head is fixed on the end of the pull wire, and a compensation spring is sleeved on the outer side of the pull wire between the end head and the side wire seat, which is used to compensate the error caused by the difference between the telescopic height of the drilling tool and the rotating distance of the end of the rotating rod.

[0014] The improved lifting drilling equipment not only solves the problems existing in the traditional equipment, but also provides many other beneficial effects, including more accurate drilling, higher work efficiency, longer equipment life and lower operation difficulty. After setting the dust collection system, the dust reduction environmental protection performance can be realized, which meets the green construction requirements.

[0015] 1. Precise positioning: By using the laser positioning mechanism, the drilling position can be accurately determined, effectively improving the accuracy of drilling. This is very important for projects with high accuracy requirements in construction engineering, such as the construction of bridges or high-rise buildings.

[0016] 2. Prevents axis deviation: The design and driving mechanism of the device can ensure that the drill always rises along the same axis, effectively preventing axis deviation and improving the quality of drilling.

[0017] 3. Automatic obstacle avoidance: Through the linkage transfer mechanism, the device can automatically adjust the position of the laser to avoid the rising drill, reducing the wear and tear of the device and prolonging its service life.

[0018] 4. High efficiency: By driving the drill with the handle, users can easily control the drilling depth and speed, greatly improving the efficiency of drilling.

[0019] 5. Stability: By using the hand brake lever to control the brake mechanism, the stability of the device during drilling can be ensured, reducing errors caused by device movement.

[0020] 6. Easy to operate: The entire operation process of the device is simple and easy to understand and master, reducing the difficulty of operation and learning cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of the drilling device of the present application;

[0022] Figure 2 is a side view of the bracket part of Figure 1 ;

[0023] Figure 3 is an enlarged view of the drilling device part in Figure 1 ;

[0024] Figure 4 is a diagram of the linkage transfer mechanism and the drill device cooperation relationship one;

[0025] Figure 5 is a diagram of the linkage transfer mechanism and the drill device cooperation relationship two.

[0026] The figure mark: 1, support assembly; 11, bottom plate; 12, support arm; 13, universal wheel; 14, fixed vertical sleeve; 15, first telescopic sleeve; 16, second telescopic sleeve; 17, lock wire; 2, auxiliary frame assembly; 21, fixed horizontal rod; 22, handrail frame; 23, hand brake lever; 24, brake cable tube; 25, sliding hole; 26, brake mechanism; 3, drilling machine driving mechanism; 31, telescopic rod; 32, hinged seat; 33, fixed swing rod; 34, movable swing rod; 35, driving handle; 36, electric drill; 37, electric drill fixing frame; 4, support seat; 41, fixed sleeve; 42, connecting rod; 43, guide sleeve; 6, laser positioning mechanism; 61, fixed sleeve; 62, rotating rod; 63, swing arm; 64, assembly sleeve; 65, laser; 66, rear plate; 67, side plate positioning seat; 7, linkage transfer mechanism; 71, wire tube; 72, pull wire; 73, end; 74, compensation spring; 75, tube seat; 8, dust collection system; 81, dust collection cover; 82, suction pipe; 83, dust collector. Embodiment

[0027] The application will be further described below in conjunction with the drawings and examples.

[0028] Example 1: An engineering construction lifting drilling device, mainly aiming at the existing lifting drilling device, which has the problems of axial deflection and lack of drilling device positioning during lifting, is improved. The drilling device mainly includes a support assembly 1, an auxiliary frame assembly 2, a drilling machine driving mechanism 3, a laser positioning mechanism 6 and a linkage transfer mechanism 7. The scheme can ensure that the drilling device always moves along the same axis upward or downward, and adopts laser positioning, linkage transfer and precise and reliable. Further, after the dust collection system 8 is additionally provided, the dust reduction and environmental protection performance can be realized, which meets the green construction requirements.

[0029] As shown in Figure 1 , the support assembly 1 includes a bottom plate 11, a support arm 12, a universal wheel 13, a fixed vertical sleeve 14, a telescopic sleeve and a lock wire 17. The support arm 12 is fixedly extended outward around the bottom plate 11, the universal wheel 13 is installed at the lower end of each support arm 12, the fixed vertical sleeve 14 is vertically installed on the upper side of the middle part of the bottom plate 11, the fixed vertical sleeve 14 is a composite sleeve with two vertical inner cavities, the first telescopic sleeve 15 and the second telescopic sleeve 16 are respectively matched and sleeved in the two vertical inner cavities, and the lock wire 17 is installed on the upper end port side wall of each vertical inner cavity for fixing the telescopic sleeve inside.

[0030] As shown in Figure 1 , the auxiliary frame assembly 2 includes a fixed horizontal rod 21, a handrail frame 22, a hand brake lever 23, a brake cable tube 24, a sliding hole 25 and a brake mechanism 26. As shown in Figure 1As shown, vertical fixing sleeve 14 is fixed with fixing horizontal rod 21 on both sides, and the U-shaped handrail 22 is fixed on the fixing horizontal rod 21, which includes two side rods and a hand rod, and a sliding hole 25 is arranged on the inner wall of the two side rods, and a hand brake rod 23 is sleeved in the two sliding holes 25, and the two ends of the hand brake rod 23 are respectively connected with the hand rod through a spring to make the hand brake rod 23 away from the hand rod, and a brake mechanism is arranged on one or more universal wheels 13, and the two ends of the hand brake rod are connected with the brake mechanism 26 through the brake line pipe 24,

[0031] As shown in Figure 1 and Figure 2 , the drill driving mechanism 3 includes a telescopic rod 31, a hinged seat 32, a fixed swing rod 33, a movable swing rod 34, a driving handle 35, an electric drill 36, and an electric drill fixing frame 37. The telescopic rod 31 is sleeved in the first telescopic sleeve 15 of the fixed vertical sleeve 14, and the fixed swing rod 33 is hinged at the top of the telescopic sleeve. The hinged seat 32 is fixed at the top of the telescopic rod 31, and the electric drill fixing frame 37 is fixed at the upper part of the hinged seat 32. The electric drill 36 is sleeved and fixed at the upper end of the electric drill fixing frame 37. The movable swing rod 34 is hinged on the hinged seat 32 through a pin shaft, and the lower end of the movable swing rod 34 is hinged with the fixed swing rod 33. The driving handle 35 is connected at the end of the movable swing rod 34 or the fixed swing rod 33. By pressing the driving handle 35 upward or downward, the included angle between the fixed swing rod 33 and the movable swing rod 34 can be changed, and the telescopic degree of the telescopic rod 31 in the first telescopic sleeve 15 can be changed, so as to change the lifting of the electric drill along the same axis.

[0032] The support seat 4 is fixed at the upper part of the second telescopic sleeve 16 parallel to the telescopic rod 31, as shown in Figure 1 , which includes a fixed sleeve 41, a connecting rod 42 and a guide sleeve 43. The upper part of the telescopic rod 31 is sleeved in the guide sleeve 43, and the support seat forms a lower limit blocking relationship with the hinged seat to prevent the hinged seat from falling excessively.

[0033] As shown in Figure 3As shown, a laser positioning mechanism 6 is installed on the top of the second telescopic sleeve 16 parallel to the telescopic rod 31. The mechanism includes a fixed sleeve 61, a rotating rod 62, a swing arm 63, a mounting bracket 64, a laser 65, a rear plate 66, and a side plate positioning seat 67. A fixed sleeve 61 is fixed to the top of the second telescopic sleeve 16. A rotating rod 62 is fitted inside the fixed sleeve 61. A base is fixed to the bottom of the fixed sleeve. The side and rear of the base have a side plate and a rear plate 66, respectively. A side plate positioning seat 67 is fixed to the side plate. A torsion spring is installed between the rotating rod and the fixed sleeve to cause the rotating rod to naturally deflect towards the side plate and be supported in the positioning groove of the side plate positioning seat 67. A swing arm 63 is vertically fixed to the top of the rotating rod 62. A mounting bracket 64 is vertically fixed to the end of the swing arm 63. A laser 65 is fitted inside the mounting bracket 64. Under the action of the torsion spring, the laser 65 is located on the upper side of the electric drill 36, and the axis of the laser 65 is consistent with the axis of the drill rod. A linkage transfer mechanism 7 is provided on the rear plate 66. When the drill moves upward, the linkage transfer mechanism 7 drives the rotating rod 62 to carry the laser to the side of the rear plate to avoid the drill.

[0034] like Figure 4 As shown, the linkage transfer mechanism 7 includes a conduit 71, a pull wire 72, an end cap 73, a compensating spring 74, and a tube seat 75. The upper end of the conduit 71 is supported in the rear support of the first through hole of the rear plate 66. The upper end of the pull wire 72 passes through the first through hole and is fixedly connected to the front end of the rotating rod 62. The tube seat 75 is provided on the lower side of the connecting rod 42. The second through hole is provided in the center of the tube seat 75. The lower end of the conduit 71 is supported on the lower end of the second through hole of the tube seat 75. The lower end of the pull wire 72 passes through the second through hole and is fixed on the side wire seat of the hinge seat 32.

[0035] like Figure 3 In the middle, an end cap 73 is fixed at the end of the pull line 72. A compensation spring 74 is fitted on the outside of the pull line between the end cap and the side line seat. It is used to compensate for the error caused by the unequal difference between the height difference of the drill string extension and the rotation distance difference at the end of the rotating rod. Normally, the height difference of the drill string extension and the rotation distance difference at the end of the rotating rod should be set to be equal. However, if the two are not equal, it will cause problems such as the laser not being able to avoid in time or the drill string extension distance being limited. The compensation spring 74 can make up for this problem.

[0036] like Figure 4 and Figure 5 As shown, the usage process of this embodiment is as follows:

[0037] 1. Equipment Positioning: First, place the equipment at the work site using the support assembly 1. Using the laser 65 of the laser positioning mechanism 6, project a laser marker onto the top surface of the building. Based on the position of the laser marker, the operator moves the support assembly 1 to ensure that the laser marker aligns with the predetermined drilling position.

[0038] 2. Equipment fixation: the brake mechanism 26 is controlled by the hand brake lever 23 to make the support assembly 1 stable in position, preventing the equipment from moving during operation.

[0039] 3. Starting the drilling process: after the equipment is fixed in position, the operator controls the lifting of the telescopic rod 31 by driving the handle 35, so that the electric drill 36 rises. It should be noted that before starting drilling, the axis of the laser 65 should be consistent with the axis of the electric drill 36 in the lower position, to ensure the accuracy of drilling.

[0040] 4. Drilling guidance and automatic obstacle avoidance: during the upward movement of the electric drill 36, the laser positioning mechanism 6 maintains accurate guidance. At the same time, the linkage transfer mechanism 7 automatically shifts the laser 65 to avoid the rising electric drill 36, preventing the two from colliding. This process continues until the height of the electric drill 36 exceeds the height of the original laser 65.

[0041] 5. Completion of drilling: after drilling is completed, the operator can lower the electric drill 36 by driving the handle 35, then release the hand brake lever 23, move the equipment to the next predetermined drilling position, and repeat the above steps.

[0042] The above-mentioned scheme of the embodiment has automatic obstacle avoidance and easy-to-operate equipment control through precise laser positioning, effectively solving the problems of axis deviation during lifting and lack of drill positioning in traditional drilling equipment, greatly improving the efficiency and accuracy of drilling operations.

[0043] The above specific embodiments of the present application are only used for illustrative or explanatory purposes, and do not constitute a limitation on the present application. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. For example, a dust collection system 8 can be provided below the drill rod of the electric drill in the Figure 1 The dust collection system 8 includes a dust collection cover 81, a suction pipe 82, and a dust collector 83, wherein the dust collection cover 81 or dust bag is fixed to the upper part of the electric drill 36 below the drill rod, the suction pipe 82 is fixed to the electric drill fixing frame 37, and the dust collector 83 is installed in the shell of the dust collector 83. A dust collection motor is installed in the shell of the dust collector 83. The bottom of the dust collection cover 81 is communicated with the inlet of the dust collection motor through the suction pipe 82, the outlet of the dust collection motor is communicated with the dust storage hopper, the sidewall of the dust storage hopper is provided with an exhaust port, and a filter screen is sleeved on the inside of the exhaust port. Thus, the dust reduction and environmental protection performance is realized, meeting the requirements of green construction.

Claims

1. A drilling and hoisting device for engineering construction, characterized in that, The system includes a support assembly (1) and a drilling rig drive mechanism (3). The support assembly (1) includes a base plate (11), support arms (12), casters (13), a fixed vertical sleeve (14), a first telescopic sleeve, and a second telescopic sleeve. Support arms (12) are fixedly extended outward from the base plate (11). Casters (13) are installed below the ends of each support arm (12). A fixed vertical sleeve (14) is vertically installed on the upper side of the middle part of the base plate (11). The first telescopic sleeve (15) and the second telescopic sleeve (16) are respectively fitted into the vertical inner cavity of the fixed vertical sleeve (14). Locking wires (17) are installed on the upper side wall of the vertical inner cavity for fixing the first telescopic sleeve (15) and the second telescopic sleeve (16) inside. The drilling rig drive mechanism (3) includes a telescopic rod (31), a hinge seat (32), a fixed swing rod (33), a movable swing rod (34), a drive handle (35), an electric drill (36), and an electric drill mounting bracket. 37), the telescopic rod (31) is fitted into the first telescopic sleeve (15) of the fixed vertical sleeve (14), a fixed swing rod (33) is hinged to the top of the first telescopic sleeve (15), a hinge seat (32) is fixed to the top of the telescopic rod (31), a vertical electric drill fixing frame (37) is fixed to the upper part of the hinge seat (32), an electric drill (36) is fixedly fitted to the upper end of the electric drill fixing frame (37), and a movable swing rod is hinged to the hinge seat (32) by a pin. 34), the lower end of the movable swing rod (34) is hinged to the fixed swing rod (33), and a drive handle (35) extends from the end of the movable swing rod (34) or the fixed swing rod (33). By pressing the drive handle (35) up or down, the angle between the fixed swing rod (33) and the movable swing rod (34) can be changed, thereby changing the extension degree of the telescopic rod (31) in the first telescopic sleeve (15) to achieve the purpose of changing the electric drill to rise and fall along the same axis; A laser positioning mechanism (6) is installed on the top of the second telescopic sleeve (16) parallel to the telescopic rod (31). The mechanism includes a fixed sleeve (61), a rotating rod (62), a swing arm (63), a mounting bracket (64), and a laser (65). The fixed sleeve (61) is fixed to the top of the second telescopic sleeve (16). The rotating rod (62) is fitted inside the fixed sleeve (61). A base is fixed to the bottom of the fixed sleeve. The side and rear of the base have side plates and a rear plate (66), respectively. A side plate is fixed to the side plate. A plate positioning seat (67) is provided, and a torsion spring is installed between the rotating rod and the fixed sleeve to cause the rotating rod to naturally deflect towards the side plate and be supported in the positioning groove of the side plate positioning seat (67); a swing arm (63) is vertically fixed at the top of the rotating rod (62), and a mounting kit (64) is vertically fixed at the end of the swing arm (63). A laser (65) is fitted inside the mounting kit (64). Under the action of the torsion spring, the laser (65) is located on the upper side of the electric drill (36), and the axis of the laser (65) is aligned with the axis of the electric drill. With the same intention, a linkage transfer mechanism (7) is set on the rear plate (66). When the electric drill moves upward, the linkage transfer mechanism (7) drives the rotating rod (62) to carry the laser to one side of the rear plate to avoid the electric drill. The linkage transfer mechanism (7) includes a conduit (71) and a pull wire (72). The upper end of the conduit (71) is supported in the rear support of the wire hole one of the rear plate (66). The upper end of the pull wire (72) passes through the wire hole one and is fixedly connected to the front end of the rotating rod (62). It also includes a tube The seat (75) has a second through hole in the center. The lower end of the conduit (71) is supported on the lower end of the second through hole in the seat (75). The lower end of the pull wire (72) passes through the second through hole and is fixed on the side wire seat of the hinge seat (32). An end (73) is fixed at the end of the pull wire (72). A compensating spring (74) is fitted on the outside of the pull wire between the end and the side wire seat to compensate for the error caused by the unequal difference between the height difference of the electric drill extension and the rotation distance difference at the end of the rotating rod.

2. The engineering construction lifting drilling equipment according to claim 1, characterized in that, It also includes an auxiliary frame assembly (2), which includes a fixed crossbar (21), a handrail frame (22), a handbrake lever (23), a brake cable (24), and a brake mechanism (26). The fixed crossbar (21) is vertically fixed on both sides of the fixed vertical sleeve (14). The fixed crossbar (21) is fixed with a U-shaped handrail frame (22). The U-shaped handrail frame (22) includes two side bars and a hand bar. Sliding holes (25) are provided on the inner walls of the two side bars. The handbrake lever (23) is fitted inside the sliding holes (25) on both sides. Springs are connected between the two ends of the handbrake lever (23) and the hand bar to make the handbrake lever (23) move away from the hand bar. At the same time, a brake mechanism is provided on one or more casters (13). The two ends of the handbrake lever are connected to the brake mechanism (26) through the brake cable (24).

3. The engineering construction lifting drilling equipment according to claim 1, characterized in that, A support seat (4) is fixed on the upper part of the second telescopic sleeve (16) parallel to the telescopic rod (31). The support seat includes a fixed sleeve (41), a connecting rod (42) and a guide sleeve (43). The upper part of the telescopic rod (31) is fitted into the guide sleeve (43), and the support seat forms a lower limit blocking relationship with the hinge seat to prevent the hinge seat from falling excessively. The tube seat (75) is set on the lower side of the connecting rod (42).

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