Construction method of micro hole forming device

Abstract

The invention discloses a construction method of a miniature hole forming device. The construction method comprises the following steps that a drill rod mechanism on a lifting drill frame is manually hammered into a soil body; a lifting pulley mechanism between the walking rack and the lifting drilling frame is freely retracted and released, and a reciprocating hammering mechanism on the lifting drilling frame exerts a periodic hammering effect on the drill rod mechanism, so that the drill rod mechanism is hammered into a soil body; after the hammering operation of one section is completed, a lifting power mechanism on the walking rack provides retracting and releasing power for a lifting pulley mechanism, the lifting pulley mechanism takes up a wire to drive a lifting drilling frame and a drilling rod mechanism to be lifted on the walking rack, and meanwhile, the drilling rod mechanism is subjected to extension rod extension; the fourth step and the fifth step are repeated for hole forming operation; and when the hole depth reaches the designed depth, hole forming operation is stopped, and the drill rod mechanism is dismounted. The device has the beneficial effects that the device is simple in overall structure, light in weight and small in occupied area, micro holes can be opened and used at any time, flexible transition of the device is achieved, and rapid operation is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of hole-forming construction, and specifically relates to a construction method of a micro-hole-forming device. Background Art

[0002] Hammer drilling is a common hole-drilling construction method. Currently, most of the equipment used for hammer drilling is large or medium-sized, powered by hydraulic cylinders, fuel engines, etc., which can meet the construction needs of large and medium-sized holes. However, for micro holes, these devices are too bulky and cannot achieve flexible and fast operations. In addition, the cost is relatively high and there are many disadvantages. Summary of the invention

[0003] The purpose of the present application is to provide a construction method for a micro-hole forming device, which solves the problem of flexible and rapid construction of micro-holes.

[0004] The purpose of this application is achieved through the following technical solutions:

[0005] A construction method of a micro-hole forming device comprises the following steps:

[0006] The first step is to measure and locate the hole.

[0007] The second step is to move the hole-forming device to the hole-forming position;

[0008] The third step is to manually hammer the drill rod mechanism on the lifting drill frame into the soil;

[0009] In the fourth step, the lifting pulley mechanism between the walking frame and the lifting drill frame is freely retracted and released, and the reciprocating hammer mechanism on the lifting drill frame applies a periodic hammering action to the drill rod mechanism, hammering the drill rod mechanism into the soil;

[0010] Step 5: After completing the hammering operation of one section, the lifting power mechanism on the walking frame provides the lifting pulley mechanism with the power to retract and release. The lifting pulley mechanism retracts and drives the lifting drill frame and the drill rod mechanism to be lifted on the walking frame, and the drill rod mechanism is extended by connecting rods at the same time.

[0011] Step 6, repeating steps 4 and 5 to perform hole forming operation;

[0012] Step 7. When the hole depth reaches the designed depth, stop the drilling operation and remove the drill rod mechanism.

[0013] Furthermore, the walking frame includes a bottom frame, walking wheels, legs, a portal frame, diagonal braces and a handrail; the front end of the bottom frame is provided with walking wheels, the rear end of the bottom frame is provided with legs, the rear end of the walking frame is lifted until the legs leave the ground, and the device is transferred by the rolling of the walking wheels; the middle part of the bottom frame is provided with a portal frame, and a diagonal brace is provided between the bottom frame and the portal frame, and a rearward extending handrail is provided on the portal frame and the diagonal brace, and the device is transferred by operating the handrail.

[0014] Furthermore, lifting slide rails are provided on both sides of the lifting drill frame, and the lifting slide rails are slidably matched with the door-type vertical frames on the walking frame to realize the lifting and sliding movement of the lifting drill frame on the walking frame.

[0015] Furthermore, the drill rod mechanism includes a hammer cap and a drill rod, the hammer cap is arranged on the lifting drill frame, and the hammer cap and the drill rod are detachably connected; the hammer cap is used to buffer the transition of the hammering effect of the heavy hammer to prevent the heavy hammer from directly hammering the drill rod and causing damage; when extending the drill rod, the old drill rod and the hammer cap are removed, and then the lifting drill frame and the hammer cap are lifted, and the new drill rod is connected between the hammer cap and the old drill rod.

[0016] Furthermore, the lifting pulley mechanism includes an upper fixed pulley, a lower movable pulley, a pull rope and a drum; the upper fixed pulley is arranged on the walking frame, the lower movable pulley is arranged on the lifting drill frame, one end of the pull rope is fixed on the walking frame or the lifting drill frame, the pull rope alternately passes around the upper fixed pulley and the lower movable pulley, the other end of the pull rope is wound around the drum, and the drum is connected to the lifting power mechanism; when the drum rotates to reel in the pull rope, the lifting drill frame is lifted, and when the drum is not subjected to force, it rotates freely, and the lifting drill frame descends by gravity.

[0017] Furthermore, the lifting power mechanism includes a clutch tumbler, a pedal rod, a spring, a first winch, a first belt and a first pulley. The clutch tumbler is hinged on the walking frame and moves between a tensioned position and a relaxed position. A pedal rod is provided on the clutch tumbler. A spring that provides a movement trend from the tensioned position to the relaxed position is provided between the clutch tumbler and the walking frame. A first winch is provided on the clutch tumbler. The first winch is connected to the first pulley through a first belt, and the first pulley is connected to the lifting pulley mechanism. Under normal circumstances, due to the elastic force of the spring, the clutch tumbler is in the relaxed position and the first belt is relaxed. When the operator steps on the pedal rod to press down the clutch tumbler, the clutch tumbler overcomes the elastic force of the spring and moves to the tensioned position. The first winch pulls the first belt to tighten, and the first winch provides power for the lifting pulley mechanism.

[0018] Furthermore, the reciprocating hammer mechanism includes a weight, a weight track, a chain power assembly, a first sprocket, a second sprocket and a circulating chain. A vertically arranged weight track is provided on the lifting drill frame. The weight is slidably arranged in the weight track. The chain power assembly is connected to the first sprocket or the second sprocket. A circulating chain is provided between the first sprocket and the second sprocket. A sprocket hanging point is provided on the circulating chain. A weight hook is provided on the weight. The weight hook is located on the lifting path of the sprocket hanging point. During the cyclic movement of the sprocket hanging point, when the sprocket hanging point moves to the low point of the lifting path, the sprocket hanging point is supported under the weight hook and lifted with the weight. When the sprocket hanging point moves to the high point of the lifting path, the lifting effect of the sprocket hanging point on the weight hook is released, and the weight falls under the action of its own gravity, hammering the drill rod mechanism at the lower limit position, and then the sprocket hanging point enters the descending path cycle for the next lifting.

[0019] Furthermore, the weight track is a V-shaped structure.

[0020] Furthermore, the chain power assembly includes a second winch, a second belt and a second pulley, the second winch is connected to the second pulley via the second belt, and the second pulley is connected to the first sprocket or the second sprocket.

[0021] Furthermore, a winch platform is provided on the weight track, the second winch is arranged on the winch platform, a sprocket bearing seat is provided on the weight track, and the first sprocket and the second sprocket are respectively arranged on the sprocket bearing seats.

[0022] Beneficial effects of this application:

[0023] (1) The overall structure of the device is simple, light, and occupies a small area. It can realize the opening and use of micro holes, realize flexible transfer of the device, and ensure rapid operation.

[0024] (2) The pulley block is used to raise or lower the drill rig, which can distribute the overall weight of the drill rig to multiple points for stress, ensuring the stability of the drill rig and completing the load-bearing function of the pull rope on the drill rig.

[0025] (3) The clutch action of the lifting power mechanism on the lifting pulley mechanism is completed through the pedal-type lifting power mechanism, which has a relatively simple structure and is also convenient for operators to operate on site.

[0026] (4) The reciprocating hammering of the heavy hammer is completed through a circulating chain. The structure is simpler than that of hydraulic cylinders, fuel engines, etc., and the hammering periodicity and stability are better.

[0027] The aforementioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application; and in the present application, (non-conflicting options) can also be freely combined with each other and with other options. After understanding the scheme of the present application, those skilled in the art can understand that there are many combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural stereogram of the present application (right view).

[0029] Figure 2 It is a structural stereogram of the present application (left view).

[0030] Figure 3 It is a structural side view of this application.

[0031] Figure 4 It is a rear view of the structure of this application.

[0032] Figure 5 It is a top view of the structure of this application.

[0033] Figure 6 It is a structural schematic diagram of the lifting power mechanism of the present application.

[0034] Figure 7 It is a structural schematic diagram of the reciprocating hammer mechanism of the present application.

[0035] In the figure: 10-travel frame, 20-lifting drill frame, 30-drill rod mechanism, 40-lifting pulley mechanism, 50-lifting power mechanism, 60-reciprocating hammer mechanism; 101-bottom frame, 102-travel wheel, 103-support leg, 104-door frame, 105-diagonal support rod, 106-handrail rod; 201-lifting slide rail; 301-hammer cap, 302-drill rod; 401-upper fixed pulley, 402-lower movable pulley, 403-pull rope, 404-drum, 405-drum shaft Bearing seat; 501-clutch rotating frame, 502-pedal rod, 503-spring, 504-first winch, 505-first belt, 506-first pulley; 601-weight, 602-weight track, 603-second winch, 604-winch platform, 605-second belt, 606-second pulley, 607-first sprocket, 608-second sprocket, 609-circular chain, 6010-sprocket bearing seat, 6011-sprocket hanging point, 6012-weight hook. DETAILED DESCRIPTION

[0036] The following non-limiting examples are provided to illustrate the present application.

[0037] Example 1

[0038] refer to Figure 1 to Figure 7 As shown, a construction method of a micro-hole forming device includes a walking frame 10, a lifting drill frame 20, a drill rod mechanism 30, a lifting pulley mechanism 40, a lifting power mechanism 50 and a reciprocating hammer mechanism 60.

[0039] The walking frame 10 is the main body of the device, which has the function of walking and transferring, and is mainly used for the placement and fixation of other mechanisms. The walking frame 10 is provided with a lifting drill frame 20, and the lifting drill frame 20 is the main frame for drilling holes. A lifting pulley mechanism 40 is provided between the walking frame 10 and the lifting drill frame 20, and the lifting pulley mechanism 40 itself is retracted and extended to realize the lifting and lowering of the lifting drill frame 20. The walking frame 10 is provided with a lifting power mechanism 50, which provides power for the retraction and extension of the lifting pulley mechanism 40, and the lifting power mechanism 50 controls the lifting and lowering of the lifting drill frame 20 through the lifting pulley mechanism 40.

[0040] The lifting drill frame 20 is provided with a drill rod mechanism 30 and a reciprocating hammer mechanism 60, and the drill rod mechanism 30 is used to drill the ground. The lower limit position of the reciprocating hammer mechanism 60 is the drill rod mechanism 30, and the reciprocating hammer mechanism 60 is used to provide continuous and periodic downward pressure to the drill rod mechanism 30, so that the drill rod mechanism 30 is pressed into the soil. The lifting function of the lifting drill frame 20 is to drive the drill rod mechanism 30 to lift and extend the connecting rod of the drill rod mechanism 30.

[0041] The method comprises the following steps:

[0042] The first step is to measure and locate the hole.

[0043] The second step is to move the hole-forming device to the hole-forming position.

[0044] The third step is to manually hammer the drill rod mechanism 30 on the lifting drill frame 20 into the soil. The drill rod 302 of the drill rod mechanism 30 is hammered 50-100 cm to temporarily fix the drill rod, while ensuring the verticality of the initial hammering.

[0045] In the fourth step, the lifting pulley mechanism 40 between the walking frame 10 and the lifting drill frame 20 is freely retracted and extended, and the reciprocating hammer mechanism 60 on the lifting drill frame 20 applies a periodic hammering action to the drill rod mechanism 30, hammering the drill rod mechanism 30 into the soil.

[0046] The fifth step is to complete the hammering operation of one section, and provide the lifting pulley mechanism 40 with the power for retracting and extending through the lifting power mechanism 50 on the walking frame 10. The lifting pulley mechanism 40 retracts and drives the lifting drill frame 20 and the drill rod mechanism 30 to be lifted on the walking frame 10, and at the same time, the drill rod mechanism 30 is extended by connecting rods.

[0047] Step 6: Repeat steps 4 and 5 to perform hole-forming operations.

[0048] Step 7: When the hole depth reaches the designed depth, the hole forming operation is stopped, the drill rod mechanism 30 is pulled out, the drill rod mechanism 30 is removed, and the standard drill rod is removed.

[0049] The walking frame 10 includes a bottom frame 101, walking wheels 102, legs 103, a door-type vertical frame 104, diagonal braces 105 and handrails 106. The bottom frame 101 is a rectangular frame structure formed by welding rectangular tubes. The front end of the bottom frame 101 is provided with rolling walking wheels 102, and the rear end of the bottom frame 101 is welded with legs 103. The rear end of the walking frame 10 is lifted until the legs 103 leave the ground, and the device is transferred and moved by the rolling of the walking wheels 102.

[0050] A portal frame 104 is welded to the middle of the bottom frame 101, and a diagonal brace 105 is welded between the front and rear ends of the bottom frame 101 and the portal frame 104 to strengthen the structure of the portal frame 104. The portal frame 104 is used to place the lifting and lowering drilling frame 20, and a rearward extending handrail 106 is welded to the portal frame 104 and the diagonal brace 105, and the handrail 106 is operated to push the device to move the site.

[0051] The lifting drill frame 20 is a rectangular frame welded by rectangular tubes and channel steels. Lifting slide rails 201 are provided on both sides of the lifting drill frame 20. The lifting slide rails 201 slide in cooperation with the door-type vertical frame 104 on the walking frame 10. The U-shaped structure of the lifting slide rails 201 is matched with the rectangular tube of the door-type vertical frame 104 to realize the lifting and sliding movement of the lifting drill frame 20 on the walking frame 10 and perform a guiding and limiting function.

[0052] The drill rod mechanism 30 includes a hammer cap 301 and a drill rod 302. The hammer cap 301 is fixed on the lifting drill frame 20 and is detachably connected to the drill rod 302 through a thread. The hammer cap 301 is used to buffer the transition of the hammering action of the heavy hammer 601, so as to prevent the heavy hammer 601 from directly hammering the drill rod 302 and causing damage. When the drill rod 302 is extended, the old drill rod 302 and the hammer cap 301 are removed, and then the lifting drill frame 20 and the hammer cap 301 are lifted, and the new drill rod 302 is connected between the hammer cap 301 and the old drill rod 302.

[0053] The lifting pulley mechanism 40 includes an upper fixed pulley 401, a lower movable pulley 402, a pull rope 403, a drum 404 and a drum bearing seat 405. The upper fixed pulley 401 is fixedly arranged at the uppermost end of the door-type vertical frame 104 of the walking frame 10, the lower movable pulley 402 is fixedly arranged at the uppermost end of the lifting drill frame 20, one end of the pull rope 403 is fixed to the walking frame 10 or the lifting drill frame 20, the pull rope 403 alternately passes around the upper fixed pulley 401 and the lower movable pulley 402, the other end of the pull rope 403 is wound around the drum 404, the drum 404 is rotatably mounted on the bottom frame 101 of the walking frame 10 through the drum bearing seat 405, and the drum 404 is connected to the lifting power mechanism 50. When the drum 404 rotates to reel in the pull rope 403, the lifting drill frame 20 is lifted, and when the drum 404 is not subjected to a force, it rotates freely, and the lifting drill frame 20 descends by gravity.

[0054] Specifically, one end of the pull rope 403 of the present embodiment is fixed to the uppermost end of the portal frame 104 of the walking frame 10, and after winding around a plurality of upper fixed pulleys 401 and a lower movable pulley 402, it is finally wound around the drum 404. Through the winding action of multiple sets of pulleys, the load of the lifting drill frame 20 can be dispersed to multiple pulleys, thereby reducing the burden during lifting at a single or a small number of lifting points, ensuring the stability of the lifting of the lifting drill frame 20, and at the same time, due to the load dispersion, the strength requirement of the pull rope 403 can be reduced, optimizing the cost of materials.

[0055] The lifting power mechanism 50 includes a clutch rotating frame 501, a pedal rod 502, a spring 503, a first winch 504, a first belt 505 and a first pulley 506. The clutch rotating frame 501 is a rectangular frame formed by welding a rectangular tube. The clutch rotating frame 501 is hinged to the bottom frame 101 of the walking frame 10 through a hinge, and the clutch rotating frame 501 moves between a tightening position and a loosening position. A pedal rod 502 is welded on the clutch rotating frame 501, and the pedal rod 502 is extended backward to facilitate the operator to step on it.

[0056] A spring 503 is provided between the clutch swivel 501 and the walking frame 10 to provide a movement tendency of the clutch swivel 501 from the tensioned position to the relaxed position. That is, under normal circumstances, due to the elastic force of the spring 503, the clutch swivel 501 is in the relaxed position. When the operator steps on the pedal rod 502 to press down the clutch swivel 501, the clutch swivel 501 overcomes the elastic force of the spring 503 and moves to the tensioned position.

[0057] A first winch 504 is fixedly provided on the clutch turret 501, and the first winch 504 is connected to the first pulley 506 through the first belt 505, and the first pulley 506 is connected to the lifting pulley mechanism 40. Under normal circumstances, due to the elastic force of the spring 503, the clutch turret 501 is in the relaxed position, the first belt 505 is relaxed, and the first winch 504 cannot provide the drum 404 of the lifting pulley mechanism 40 with the power to reel in the pull rope 403. When the connecting rod is extended or the operation is stopped, the second winch of the chain power assembly is turned off, the first winch is turned on, and the operator steps on the pedal 502 to press down the clutch turret 501, and the clutch turret 501 overcomes the elastic force of the spring 503 and moves to the tensioning position, and the first winch 504 pulls the first belt 505 to tighten, and the first winch 504 provides the drum 404 of the lifting pulley mechanism 40 with the power to reel in the pull rope 403.

[0058] The reciprocating hammer mechanism 60 includes a weight 601, a weight track 602, a chain power assembly (including a second winch 603, a second belt 605 and a second pulley 606), a winch platform 604, a first sprocket 607, a second sprocket 608, an endless chain 609 and a sprocket bearing seat 6010.

[0059] A vertically arranged weight rail 602 is welded on the lifting drill frame 20, and the weight 601 is slidably arranged in the weight rail 602. The weight 601 between the two weight rails 602 is lifted and slid to complete the reciprocating hammering process. The weight rail 602 is a V-shaped structure, and the two sides of the weight 601 are also V-shaped structures. The V-shaped structure can maintain the stability of the weight 601 when it is lifted and lowered.

[0060] The chain power assembly is connected to the first sprocket 607 or the second sprocket 608, the first sprocket 607 is located at the top, the second sprocket 608 is located at the bottom, and a circulating chain 609 is arranged between the first sprocket 607 and the second sprocket 608, that is, the chain power assembly is used to realize the continuous movement of the circulating chain 609. The circulating chain 609 is fixed with sprocket hanging points 6011 located on both sides, and the weight 601 is fixed with weight hooks 6012 located on both sides, and the weight hooks 6012 are located on the lifting path of the sprocket hanging points 6011.

[0061] During the cyclic movement of the sprocket hanging point 6011, when the sprocket hanging point 6011 moves to the low point of the lifting path, the sprocket hanging point 6011 is supported under the weight hook 6012 and lifted with the weight 601. When the sprocket hanging point 6011 moves to the high point of the lifting path, the lifting effect of the sprocket hanging point 6011 on the weight hook 6012 is released, and the weight 601 falls under the action of its own gravity, hammering the drill rod mechanism at the lower limit position, and then the sprocket hanging point 601 enters the descending path cycle for the next lifting, and the circulating chain 609 carries the weight 601 to free fall once every time it rotates.

[0062] The chain power assembly includes a second winch 603, a second belt 605 and a second pulley 606. The second winch 603 is connected to the second pulley 606 through the second belt 605. The second pulley 606 is coaxially connected to the first sprocket 607 or the second sprocket 608. In this embodiment, the second pulley 606 is connected to the first sprocket 607 above. A winch platform 604 is welded on the weight track 602, and the second winch 603 is arranged on the winch platform 604. A sprocket bearing seat 6010 is fixed on the weight track 602, and the first sprocket 607 and the second sprocket 608 are respectively arranged on the sprocket bearing seat 6010 to realize the rotation placement of the sprocket. When performing reciprocating hammering, the power is turned on and the second winch 603 is turned on to provide power for the weight 601.

[0063] The aforementioned basic examples and their further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed for protection in this application. In the scheme of this application, each selected example can be arbitrarily combined with any other basic examples and selected examples.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A construction method of a micro-hole forming device, characterized in that: The steps include: The first step is to measure and locate the hole. The second step is to move the hole-forming device to the hole-forming position; The third step is to manually hammer the drill rod mechanism (30) on the lifting drill frame (20) into the soil; In the fourth step, the lifting pulley mechanism (40) between the walking frame (10) and the lifting drill frame (20) is freely retracted and extended, and the reciprocating hammer mechanism (60) on the lifting drill frame (20) applies a periodic hammering action to the drill rod mechanism (30), so that the drill rod mechanism (30) is hammered into the soil; In the fifth step, after completing the hammering operation of one section, the lifting power mechanism (50) on the walking frame (10) provides the lifting pulley mechanism (40) with the power for retracting and releasing, and the lifting pulley mechanism (40) retracts the wire to drive the lifting drill frame (20) and the drill rod mechanism (30) to be lifted on the walking frame (10), and at the same time, the drill rod mechanism (30) is extended by connecting the rods; Step 6, repeating steps 4 and 5 to perform hole forming operation; Step 7: When the hole depth reaches the designed depth, the hole forming operation is stopped and the drill rod mechanism (30) is removed.

2. The construction method of the micro-hole forming device according to claim 1, characterized in that: The walking frame (10) comprises a base frame (101), walking wheels (102), legs (103), a door-type frame (104), a diagonal brace (105) and a handrail (106); the front end of the base frame (101) is provided with walking wheels (102), the rear end of the base frame (101) is provided with legs (103), the rear end of the walking frame (10) is lifted until the legs (103) leave the ground, and the device is transferred by rolling the walking wheels (102); the middle part of the base frame (101) is provided with a door-type frame (104), the diagonal brace (105) is provided between the base frame (101) and the door-type frame (104), and the door-type frame (104) and the diagonal brace (105) are jointly provided with a rearward extending handrail (106), and the device is pushed to transfer by operating the handrail (106).

3. The construction method of the micro-hole forming device according to claim 1 or 2, characterized in that: Lifting rails (201) are provided on both sides of the lifting drill frame (20), and the lifting rails (201) are slidably matched with the door-type vertical frame (104) on the walking frame (10) to realize the lifting and sliding movement of the lifting drill frame (20) on the walking frame (10).

4. The construction method of the micro-hole forming device according to claim 1, characterized in that: The drill rod mechanism (30) comprises a hammer cap (301) and a drill rod (302), wherein the hammer cap (301) is arranged on a lifting drill frame (20), and the hammer cap (301) and the drill rod (302) are detachably connected; the hammer cap (301) is used to buffer the transition of the hammering action of the heavy hammer (601), so as to prevent the heavy hammer (601) from directly hammering the drill rod (302) and causing damage; when extending the drill rod (302), the old drill rod (302) and the hammer cap (301) are removed, and then the lifting drill frame (20) and the hammer cap (301) are lifted, and the new drill rod (302) is connected between the hammer cap (301) and the old drill rod (302).

5. The construction method of the micro-hole forming device according to claim 1, characterized in that: The lifting pulley mechanism (40) comprises an upper fixed pulley (401), a lower movable pulley (402), a pull rope (403) and a drum (404); the upper fixed pulley (401) is arranged on the walking frame (10), the lower movable pulley (402) is arranged on the lifting drill frame (20), one end of the pull rope (403) is fixed on the walking frame (10) or the lifting drill frame (20), the pull rope (403) alternately passes around the upper fixed pulley (401) and the lower movable pulley (402), the other end of the pull rope (403) is wound around the drum (404), and the drum (404) is connected to the lifting power mechanism (50); when the drum (404) rotates to reel in the pull rope (403), the lifting drill frame (20) is lifted, and when the drum (404) is not subjected to a force, it rotates freely, and the lifting drill frame (20) descends by gravity.

6. The construction method of the micro-hole forming device according to claim 1 or 5, characterized in that: The lifting power mechanism (50) comprises a clutch rotating frame (501), a pedal rod (502), a spring (503), a first winch (504), a first belt (505) and a first pulley (506); the clutch rotating frame (501) is hinged on the walking frame (10) and moves between a tightening position and a relaxing position; the clutch rotating frame (501) is provided with a pedal rod (502); a spring (503) providing a movement trend from the tightening position to the relaxing position is provided between the clutch rotating frame (501) and the walking frame (10); the clutch rotating frame (501) is provided with a first winch (504); the first winch (505) 504) is connected to the first pulley (506) through the first belt (505), and the first pulley (506) is connected to the lifting pulley mechanism (40); under normal circumstances, due to the elastic force of the spring (503), the clutch rotating frame (501) is located in the relaxed position, and the first belt (505) is relaxed. When the operator steps on the pedal (502) to press down the clutch rotating frame (501), the clutch rotating frame (501) overcomes the elastic force of the spring (503) and moves to the tightened position. The first winch (504) pulls the first belt (505) to be tightened, and the first winch (504) provides power for the lifting pulley mechanism (40).

7. The construction method of the micro-hole forming device according to claim 1, characterized in that: The reciprocating hammer mechanism (60) comprises a weight (601), a weight track (602), a chain power assembly, a first sprocket (607), a second sprocket (608) and a circulating chain (609). A vertically arranged weight track (602) is provided on the lifting drill frame (20). The weight (601) is slidably arranged in the weight track (602). The chain power assembly is connected to the first sprocket (607) or the second sprocket (608). A circulating chain (609) is provided between the first sprocket (607) and the second sprocket (608). A sprocket hanging point (6011) is provided on the circulating chain (609). A weight hook (6012) is provided on the weight (601). The hammer hook (6012) is located on the lifting path of the sprocket hanging point (6011); during the cyclic movement of the sprocket hanging point (6011), when the sprocket hanging point (6011) moves to the low point of the lifting path, the sprocket hanging point (6011) is supported under the heavy hammer hook (6012) and lifted together with the heavy hammer (601). When the sprocket hanging point (6011) moves to the high point of the lifting path, the lifting effect of the sprocket hanging point (6011) on the heavy hammer hook (6012) is released, and the heavy hammer (601) falls under the action of its own gravity, and hammers the drill rod mechanism at the lower limit position, and then the sprocket hanging point (6011) enters the descending path cycle for the next lifting.

8. The construction method of the micro-hole forming device according to claim 7, characterized in that: The weight track (602) is a V-shaped structure.

9. The construction method of the micro-hole forming device according to claim 7, characterized in that: The chain power assembly comprises a second winch (603), a second belt (605) and a second pulley (606); the second winch (603) is connected to the second pulley (606) via the second belt (605); the second pulley (606) is connected to the first sprocket (607) or the second sprocket (608).

10. The construction method of the micro-hole forming device according to claim 9, characterized in that: A hoisting machine platform (604) is provided on the weight track (602), and the second hoisting machine (603) is arranged on the hoisting machine platform (604). A sprocket bearing seat (6010) is provided on the weight track (602), and the first sprocket (607) and the second sprocket (608) are respectively arranged on the sprocket bearing seat (6010).

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