A device and construction method for synchronous drilling of side formwork for large cross-section beams

Abstract

This invention discloses a device and construction method for synchronous drilling of side formwork for large cross-section beams, including a front-end stepping mechanism and a rear-end drilling mechanism, which are connected by an intermediate rod group. The stepping mechanism includes a stepping shaft, with a first pivot connecting seat rotatably connected to the middle of the stepping shaft. Each end of the stepping shaft is provided with a three-bar frame mechanism, which has three support legs evenly distributed circumferentially around the central axis of the stepping shaft. The drilling mechanism includes two sets of symmetrically distributed double-bar vertical rail frames, on which drills with outward-facing drill bits are installed. The two double-bar vertical rail frames are movably connected by a vertical rail adjustment rod group. This invention reduces the probability of positioning errors through the coordinated use of the stepping mechanism and the drilling mechanism. At the same time, it innovates the process and achieves precise and effective hole making through continuous rolling construction steps, while ensuring that the hole positions on both sides of the formwork are completely consistent.

Description

Technical Field

[0001] This invention relates to the field of template drilling technology, and in particular to a device and construction method for synchronous drilling of side templates for large cross-section beams. Background Technology

[0002] In current building construction, there are concrete structural beams with large interface dimensions that are required by design, especially in the primary structural construction stage of basements. Due to the high load-bearing capacity design requirements, large-interface concrete beams are often found. At the same time, the turnover rate of formwork is low, and wooden formwork is often used in on-site construction.

[0003] Patent CN202220004460.1 discloses a drilling device for processing aluminum alloy templates, including a workbench, a gantry frame above the workbench, and a drilling device installed on the gantry frame. The drilling device includes a drive motor, an output shaft connected to the drive motor, a connecting shaft detachably connected to the output shaft, a drill bit fixedly connected to the lower end of the connecting shaft, and a venting sleeve sleeved outside the connecting shaft. The venting sleeve is connected to an air supply hose. The connecting shaft and the venting sleeve are rotatably connected. A purge hole is provided below the venting sleeve.

[0004] When constructing wooden formwork, tie rods are typically used to reinforce the side formwork of large-section concrete beams. In existing technologies, there are generally two methods for creating the pre-drilled holes for the tie rods on the formwork. One method involves pre-drilling holes before the beam formwork is installed. This method allows for more accurate control of the hole location (height from the bottom edge, spacing), but it places higher demands on the subsequent formwork installation process, making formwork alignment and assembly difficult. The other method involves drilling holes after the beam formwork is installed, with workers using handheld hole-making machines to drill holes in the installed formwork. This method has a smaller working area, making manual hole drilling difficult. Furthermore, the tie rods require the horizontal and vertical positions of both sides of the formwork to be consistent, which is difficult to control manually, resulting in inaccurate positioning of the reinforcement holes on the formwork. This affects the installation of the tie rods, and manual single-sided visual drilling is inefficient and impacts formwork construction.

[0005] Therefore, there is an urgent need for a device and construction method for synchronous drilling of side formwork for large cross-section beams to solve the problems of uneven drilling on one side, asymmetry in drilling on both sides, and low efficiency. Summary of the Invention

[0006] To address the aforementioned problems in the existing technology, this invention provides a device and construction method for synchronous drilling of side formwork for large cross-section beams.

[0007] The technical solution of the present invention is as follows:

[0008] A device for synchronous drilling of side formwork for large cross-section beams includes a front-end stepping mechanism and a rear-end drilling mechanism, wherein the stepping mechanism and the drilling mechanism are connected by an intermediate rod group.

[0009] The stepping mechanism includes a stepping shaft, with a first pivot connecting seat rotatably connected to the middle of the stepping shaft. The three-bar linkage mechanism has three support legs evenly distributed circumferentially around the central axis of the stepping shaft.

[0010] The drilling mechanism includes two sets of symmetrically distributed double-rod rail frames. Drilling tools with outward-facing drill bits are installed on the double-rod rail frames. Traveling wheels are provided at the bottom of the double-rod rail frames on both sides. The double-rod rail frames on both sides are movably connected by a rail adjustment rod group.

[0011] Preferably, the stepper shaft is a double-ended screw, and three support legs are hinged to the ends of the double-ended screw. The three-bar frame mechanism also includes an adjusting nut screwed to the outer wall of the double-ended screw. A connecting ring is rotatably installed on one side of the adjusting nut. The connecting ring is fitted with a gap on the outer wall of the double-ended screw. Support leg connecting rods are respectively hinged between the outer walls of the three support legs and the outer walls of the connecting ring.

[0012] Preferably, the vertical rail adjusting rod assembly includes an adjusting sleeve fixedly connected to the bottom end of the double-rod vertical rail frame, a middle sliding rod movably passing between the two adjusting sleeves, a traveling wheel rotatably installed on the outer end of the adjusting sleeve, a second pivot connecting seat fixedly sleeved on the inner end of the outer wall of the adjusting sleeve, a third pivot connecting seat provided between the two double-rod vertical rail frames, a lower connecting rod hinged between the third pivot connecting seat and the two second pivot connecting seats, and the vertical rail adjusting rod assembly also includes a sliding seat slidably connected to the double-rod vertical rail frame, an upper connecting rod hinged between the third pivot connecting seat and the two sliding seats.

[0013] Preferably, each end of the stepper shaft is provided with a three-bar frame mechanism, the middle rod group includes a vertical diagonal brace and two horizontal diagonal braces that are symmetrical on the left and right. The two ends of the vertical diagonal brace are hinged between the first hub connecting seat and the third hub connecting seat, and the two ends of the horizontal diagonal brace are hinged between the first hub connecting seat and the second hub connecting seat.

[0014] Preferably, the punch is mounted on the double-rod vertical rail frame via a height-adjustable mounting bracket. The height-adjustable mounting bracket includes a mounting plate, on which the punch bit is fixedly mounted with its drill bit facing outward. Lifting sleeves are provided on both sides of the mounting plate, and the two lifting sleeves are respectively fitted onto the two uprights of the double-rod vertical rail frame. The middle section of the outer wall of the two uprights of the double-rod vertical rail frame is provided with external threads, and positioning nuts are screwed to the upper and lower ends of the lifting sleeves.

[0015] Preferably, the top of the punch is connected to a wire, the outer wall of the wire is covered with a wire sheath, and the upper end of the wire sheath is provided with a sheath fixing seat, which is slidably installed on the two uprights of the double-rod rail frame.

[0016] Preferably, the top of the double-bar vertical rail frame is equipped with an operating handle.

[0017] Preferably, the outer wall of the traveling wheel is provided with anti-slip teeth or anti-slip patterns.

[0018] A construction method utilizing a synchronous drilling device for side formwork of large-section beams, comprising the following specific construction steps:

[0019] Step 1: Place the device in the mold cavity of the large cross-section beam formwork, with the stepping mechanism of the device facing the front end of the construction movement;

[0020] Step 2: Adjust the step distance of the three-bar frame mechanism to one-third of a revolution according to the required hole spacing;

[0021] Step 3: Adjust the drill bit of the punch to the height of the side template hole using the height adjustment mounting bracket;

[0022] Step 4: Use the forward and backward translation device to adjust the drill bit of the punch to the horizontal position of the side template hole;

[0023] Step 5: Start the puncher and push the double-rod vertical rail frame outwards using the handles on both sides to drive the puncher to feed laterally and complete the punching operation on both sides of the side template;

[0024] Step Six: After completing the first set of holes, retract the drill bit and push the device forward until the drill bit reaches the position of the second set of holes. Repeat the drilling steps.

[0025] Step 7: Continue in this manner to complete drilling all the side templates.

[0026] Furthermore, in construction step two:

[0027] Let L1 be the required spacing between holes, and L2 be the step distance of the three-bar linkage mechanism rotating one-third of a revolution. Then L1 = n * L2, where n is a positive integer.

[0028] The present invention has the following beneficial effects:

[0029] 1. This invention reduces the probability of positioning errors by using a stepping mechanism and a drilling mechanism in combination. At the same time, the innovative process allows for precise and effective hole making through continuous rolling construction steps, while ensuring that the hole positions on both sides of the template are completely consistent. This invention is convenient, practical and quick to install, reduces the investment of manpower and material resources, and has strong on-site construction capabilities.

[0030] 2. This invention also adopts a two-stage mechanical structure to control the horizontal and vertical drilling positions. At the same time, with the help of the working surface of the beam bottom formwork, it innovatively adopts a "trolley-type" implementation method. The device position and size are adjusted once according to the design requirements, and subsequent construction can be carried out continuously, which is convenient and fast. The original process of drilling holes one by one on one side is optimized into continuous double-sided drilling, which not only improves work efficiency but also ensures construction quality. Attached Figure Description

[0031] Figure 1This is a three-dimensional schematic diagram of the overall structure of the device of the present invention;

[0032] Figure 2 Detailed component diagrams are shown to illustrate the overall structure of the device of the present invention;

[0033] Figure 3 This is the left view of the present invention;

[0034] Figure 4 This is a front view of the present invention.

[0035] The reference numerals in the figure are as follows:

[0036] 100. Stepping mechanism; 110. Stepping shaft; 120. First pivot connecting seat; 130. Three-bar linkage mechanism; 131. Support leg; 132. Adjusting nut; 133. Connecting ring; 134. Support leg connecting rod; 200. Drilling mechanism; 210. Double-bar vertical rail frame; 220. Drilling tool; 221. Wire; 222. Wire sheath; 223. Sheath fixing seat; 230. Traveling wheel; 240. Vertical 241. Adjusting rod assembly; 242. Adjusting sleeve; 243. Second hub connecting seat; 244. Third hub connecting seat; 245. Lower connecting rod; 246. Sliding seat; 247. Upper connecting rod; 248. Intermediate sliding rod; 250. Mounting bracket; 251. Mounting plate; 252. Lifting sleeve; 253. Positioning nut; 260. Operating handle; 300. Intermediate rod assembly; 310. Vertical diagonal brace; 320. Horizontal diagonal brace. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] See Figures 1 to 4 A device for synchronous drilling of side formwork for large cross-section beams includes a front-end stepping mechanism 100 and a rear-end drilling mechanism 200, wherein the stepping mechanism 100 and the drilling mechanism 200 are connected by an intermediate rod group 300.

[0039] The stepping mechanism 100 includes a stepping shaft 110, a first hub connecting seat 120 rotatably connected to the middle of the stepping shaft 110, and a three-bar linkage mechanism 130 having three support legs 131 evenly distributed circumferentially around the central axis of the stepping shaft 110.

[0040] The three-bar linkage mechanism 130 is set up to control the stepping distance of the device when drilling as needed;

[0041] The drilling mechanism 200 includes two sets of symmetrically distributed double-rod rail frames 210. A drill bit 220 with the drill bit facing outward is installed on the double-rod rail frame 210. Traveling wheels 230 are provided at the bottom of the double-rod rail frames 210 on both sides. The double-rod rail frames 210 on both sides are movably connected by a rail adjustment rod group 240.

[0042] Furthermore, the stepper shaft 110 is a double-ended screw, and three support legs 131 are hinged to the ends of the double-ended screw. The three-bar frame mechanism 130 also includes an adjusting nut 132 screwed to the outer wall of the double-ended screw. A connecting ring 133 is rotatably installed on one side of the adjusting nut 132. The connecting ring 133 is fitted with a gap on the outer wall of the double-ended screw. Support leg connecting rods 134 are respectively hinged between the outer walls of the three support legs 131 and the outer walls of the connecting ring 133.

[0043] The size of the circle formed by the free ends of the three support legs 131 is adjusted by adjusting the setting of nut 132, thereby limiting the horizontal spacing of the openings and making the opening spacing meet the specified requirements.

[0044] Furthermore, the vertical rail adjusting rod assembly 240 includes an adjusting sleeve 241 fixedly connected to the bottom end of the double-rod vertical rail frame 210, a middle sliding rod 247 movably passing between the two adjusting sleeves 241, a traveling wheel 230 rotatably mounted on the outer end of the adjusting sleeve 241, a second hub connecting seat 242 fixedly sleeved on the inner end of the outer wall of the adjusting sleeve 241, a third hub connecting seat 243 provided between the two double-rod vertical rail frames 210, a lower connecting rod 244 hinged between the third hub connecting seat 243 and the two second hub connecting seats 242, and the vertical rail adjusting rod assembly 240 also includes a sliding seat 245 slidably connected to the double-rod vertical rail frame 210, an upper connecting rod 246 hinged between the third hub connecting seat 243 and the two sliding seats 245;

[0045] By sliding and engaging each member of the vertical rail adjusting rod assembly 240 with its corresponding hinge seat, the horizontal spacing can be adjusted.

[0046] Furthermore, each end of the stepping shaft 110 is provided with a three-bar frame mechanism 130. The intermediate rod group 300 includes a vertical diagonal brace 310 and two horizontally symmetrical diagonal braces 320. The two ends of the vertical diagonal brace 310 are hinged between the first hub connecting seat 120 and the third hub connecting seat 243, and the two ends of the horizontal diagonal brace 320 are hinged between the first hub connecting seat 120 and the second hub connecting seat 242.

[0047] Furthermore, the punch 220 is mounted on the double-rod vertical rail frame 210 via a height-adjustable mounting bracket 250. The height-adjustable mounting bracket 250 includes a mounting plate 251. The punch 220 is fixedly mounted on the mounting plate 251 with the drill bit facing outward. Lifting sleeves 252 are provided on both sides of the mounting plate 251. The lifting sleeves 252 on both sides are respectively sleeved on the two uprights of the double-rod vertical rail frame 210. The middle section of the outer wall of the two uprights of the double-rod vertical rail frame 210 is provided with external threads, and positioning nuts 253 are screwed to the upper and lower ends of the lifting sleeves 252.

[0048] The height of the punch 220 is controlled by the positioning nut 253 and the height adjustment mounting bracket 250.

[0049] Furthermore, the top of the punch 220 is connected to a wire 221, the outer wall of the wire 221 is fitted with a wire sheath 222, and the upper end of the wire sheath 222 is provided with a sheath fixing seat 223, which is slidably installed on the two uprights of the double-rod vertical rail frame 210.

[0050] Protecting the conductor 221 with the conductor sheath 220 makes on-site construction safer and prevents accidents. The two ends of the conductor 221 can be thrown out through the sheath fixing seat 223 fixed on the two columns of the double rail frame 210. The overall operation is safer and the appearance of the device is simpler and more beautiful.

[0051] Furthermore, the top of the double-rod vertical rail frame 210 is equipped with an operating handle 260. By pushing the double-rod vertical rail frame 210 outward through the operating handles 260 on both sides, the puncher 220 is driven to feed laterally to complete the punching operation on both sides of the side template.

[0052] Furthermore, the outer wall of the traveling wheel 230 is provided with anti-slip teeth or anti-slip patterns, which makes the whole device more stable during travel.

[0053] A construction method utilizing a synchronous drilling device for side formwork of large-section beams, comprising the following specific construction steps:

[0054] Step 1: Place the device in the mold cavity of the large cross-section beam formwork, with the stepping mechanism 100 of the device facing the front end of the construction movement;

[0055] Step 2: Adjust the step distance of the three-bar frame mechanism 130 by one-third of a revolution according to the required drilling spacing;

[0056] Step 3: Adjust the drill bit of the punch 220 to the height of the side template hole using the height adjustment mounting bracket 250;

[0057] Step 4: Use the forward and backward translation device to adjust the drill bit of the punch 220 to the horizontal position of the side template hole;

[0058] Step 5: Start the puncher 220 and push the double rod vertical rail frame 210 outward through the operating handles 260 on both sides to drive the puncher 220 to feed laterally and complete the punching operation on both sides of the side template;

[0059] Step Six: After completing the first set of holes, retract the drill bit and push the device forward until the drill bit of the driller 220 reaches the position of the second set of holes. Repeat the drilling steps.

[0060] Step 7: Continue in this manner to complete drilling all the side templates.

[0061] Furthermore, in construction step two:

[0062] Let L1 be the required spacing of the holes, and L2 be the step distance of the three-bar linkage mechanism 130 rotating one-third of a revolution. Then L1 = n * L2, where n is a positive integer.

[0063] Working principle of the invention:

[0064] In this invention, the front-end stepping mechanism 100 and the rear-end drilling mechanism 200 are first assembled and connected together via an intermediate rod group 300. Then, the operator places the device in the mold cavity of the large-section beam template, with the stepping mechanism 100 facing the front end of the construction movement. Based on the required drilling spacing, the stepping distance of the three-bar frame mechanism 130 is adjusted by rotating one-third of a revolution. Furthermore, in this invention, the required drilling spacing is set to L1, and the stepping distance of the three-bar frame mechanism 130 rotating one-third of a revolution is set to L2. Then L1 = n * L2, where n is a positive integer; then, the drill bit of the puncher 220 is adjusted to the height of the side template hole position by using the height adjustment mounting bracket 250; next, the front and back translation device is used to adjust the drill bit of the puncher 220 to the horizontal position of the side template hole position; then the puncher 220 is started, and the double rod vertical rail frame 210 is pushed outward by the operating handles 260 on both sides to drive the puncher 220 to feed laterally and complete the punching operation on both sides of the side template; finally, the punching is repeated to complete the punching work of all side templates.

[0065] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for synchronous drilling of side formwork for large cross-section beams, characterized in that: It includes a front-end stepping mechanism (100) and a rear-end drilling mechanism (200), which are connected by an intermediate rod group (300). The stepping mechanism (100) includes a stepping shaft (110), and a three-bar frame mechanism (130) is provided at each end of the stepping shaft (110). The three-bar frame mechanism (130) has three support legs (131) evenly distributed circumferentially around the central axis of the stepping shaft (110). The drilling mechanism (200) includes two sets of symmetrically distributed double-rod rail frames (210). A drill bit-facing hole punch (220) is installed on the double-rod rail frame (210). The bottom ends of the double-rod rail frames (210) on both sides are provided with travel wheels (230). The double-rod rail frames (210) on both sides are movably connected by a rail adjustment rod group (240). The stepping shaft (110) is a double-ended screw, and the three support legs (131) are hinged to the ends of the double-ended screw. The three-bar frame mechanism (130) also includes an adjusting nut (132) screwed to the outer wall of the double-ended screw. A connecting ring (133) is rotatably installed on one side of the adjusting nut (132). The connecting ring (133) is fitted with a gap on the outer wall of the double-ended screw. Support leg connecting rods (134) are respectively hinged between the outer walls of the three support legs (131) and the outer walls of the connecting ring (133). The vertical rail adjusting rod assembly (240) includes an adjusting sleeve (241) fixedly connected to the bottom end of the double-rod vertical rail frame (210), a middle sliding rod (247) movably passing between the two adjusting sleeves (241), the traveling wheel (230) being rotatably installed on the outer end of the adjusting sleeve (241), a second hub connecting seat (242) fixedly sleeved on the inner end of the outer wall of the adjusting sleeve (241), a third hub connecting seat (243) being provided between the two double-rod vertical rail frames (210), a lower connecting rod (244) being hinged between the third hub connecting seat (243) and the two second hub connecting seats (242), the vertical rail adjusting rod assembly (240) also includes a sliding seat (245) slidably connected to the double-rod vertical rail frame (210), an upper connecting rod (246) being hinged between the third hub connecting seat (243) and the two sliding seats (245).

2. The device for synchronous drilling of side formwork for large cross-section beams as described in claim 1, characterized in that: The middle part of the stepping shaft (110) is rotatably connected to a first hub connecting seat (120). The intermediate rod group (300) includes a vertical diagonal brace (310) and two horizontally symmetrical diagonal braces (320). The two ends of the vertical diagonal brace (310) are hinged between the first hub connecting seat (120) and the third hub connecting seat (243). The two ends of the horizontal diagonal brace (320) are hinged between the first hub connecting seat (120) and the second hub connecting seat (242).

3. The device for synchronous drilling of side formwork for large cross-section beams as described in claim 1, characterized in that: The punch (220) is mounted on the double-rod rail frame (210) via a height-adjustable mounting bracket (250). The height-adjustable mounting bracket (250) includes a mounting plate (251). The punch (220) is fixedly mounted on the mounting plate (251) with the drill bit facing outward. Lifting sleeves (252) are provided on both sides of the mounting plate (251). The lifting sleeves (252) on both sides are respectively sleeved on the two uprights of the double-rod rail frame (210). The outer wall of the two uprights of the double-rod rail frame (210) is provided with external threads, and positioning nuts (253) are screwed to the upper and lower ends of the lifting sleeves (252).

4. The device for synchronous drilling of side formwork for large cross-section beams as described in claim 1, characterized in that: The top of the punch (220) is connected to a wire (221), and the outer wall of the wire (221) is fitted with a wire sheath (222). The upper end of the wire sheath (222) is provided with a sheath fixing seat (223), and the sheath fixing seat (223) is slidably installed on the two uprights of the double rod rail frame (210).

5. The device for synchronous drilling of side formwork for large cross-section beams as described in claim 3, characterized in that: The top of the double-rod vertical rail frame (210) is provided with an operating handle (260).

6. The device for synchronous drilling of side formwork for large cross-section beams as described in claim 1, characterized in that: The outer wall of the traveling wheel (230) is provided with anti-slip teeth or anti-slip patterns.

7. A construction method utilizing a synchronous drilling device for side formwork of large-section beams, characterized in that: The device for synchronous drilling of side formwork for large cross-section beams as described in claim 5 is used; the specific construction steps include: Step 1: Place the device in the mold cavity of the large cross-section beam formwork, with the stepping mechanism (100) of the device facing the front end of the construction movement; Step 2: Adjust the step distance of the three-bar frame mechanism (130) to one-third of a revolution according to the required hole spacing; Step 3: Adjust the drill bit of the punch (220) to the height of the side template hole position using the height adjustment mounting bracket (250); Step 4: Use the forward and backward translation device to adjust the drill bit of the punch (220) to the horizontal position of the side template hole; Step 5: Start the puncher (220) and push the double rod vertical rail frame (210) outward through the operating handles (260) on both sides to drive the puncher (220) to feed laterally and complete the punching operation on both sides of the side template; Step 6: After completing the first set of holes, retract the drill bit and push the device forward until the drill bit of the punch (220) reaches the position of the second set of holes, and repeat the drilling steps; Step 7: Continue in this manner to complete drilling all the side templates.

8. A construction method using a synchronous drilling device for side formwork of large-section beams as described in claim 7, characterized in that: In construction step two: Let L1 be the required spacing of the holes, and L2 be the step distance of the three-bar linkage mechanism (130) rotating one-third of a revolution. Then L1 = n * L2, where n is a positive integer.

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