Anchor bolt and anchor disc countersunk head trepanning device for building heat preservation system and construction method of anchor bolt and anchor disc countersunk head trepanning device

Abstract

The invention discloses an anchor bolt and anchor disc countersunk head trepanning device for a building heat preservation system and a construction method. The device comprises a drill bit clamp, a trepanning tool and a trepanning depth limiting baffle. The drill bit clamp is clamped and fixed on the drill bit through a clamping block, the trepanning cutter is matched and positioned with a positioning groove in the drill bit clamp through a positioning block and is fixed through a screw, a cutting part of the trepanning cutter comprises an outer cutting cylinder, an inner cutting cylinder and a cutting radial plate, and a chip removal opening is formed in the outer cutting cylinder; the tapping depth limiting baffle is of an annular structure and is fixedly assembled with an outer cutting cylinder of the tapping tool through a lug plate and a screw, and the depth of a counter bore is adjusted by adjusting the axial position of the tapping depth limiting baffle. The countersunk head trepanning device and the construction method are suitable for countersunk head construction of anchor bolts and anchor plates of all types, the problems that in an existing construction technology, operation is tedious, the construction difficulty is large, and the fatigue performance of anchor bolts is reduced are effectively solved, the overall heat bridge breaking effect of a building external thermal insulation system is achieved, and meanwhile the weather resistance of the anchor bolts is improved.

Description

Technical Field

[0001] This invention belongs to the field of building insulation technology, and in particular relates to an anchor bolt and anchor plate countersunk hole opening device and construction method for building insulation systems. Background Technology

[0002] As an important component of building energy conservation systems, building external insulation systems play a crucial role in reducing building energy consumption. With the increasing national requirements for building energy conservation standards, the treatment of detailed thermal bridge structures in building external wall insulation systems is particularly critical.

[0003] External building insulation systems are located on the exterior surface of buildings and are typically formed by anchoring insulation boards to the building structure using anchors. Anchors generally consist of a metal core and a plastic expansion sleeve. The heat transfer performance of the metal core has a significant impact on the insulation system. Furthermore, the plastic anchor plate of the anchor is located on the surface of the external insulation system and is subject to the effects of natural stress changes such as temperature over the years, as well as erosion. This makes it prone to aging and deformation, which in turn reduces its weather resistance and makes it unable to provide a safe anchoring force for the external building insulation system.

[0004] To address the above issues, the commonly used technique of recessed anchor bolts and discs is adopted, which allows the anchor discs to be deeply embedded within the insulation system. Even though the anchor discs are inside the insulation material, they can both prevent thermal bridging in the insulation system and protect the anchor discs from natural stress changes and erosion, thereby improving their overall weather resistance.

[0005] In current construction operations, the common practice is to first drill countersunk holes (grooves) in the insulation board and then drill holes in the base layer to install anchor bolts, or to use anchor plates to compress and recess the surface of the insulation board to achieve the purpose of anchor plate embedment depth.

[0006] However, the aforementioned construction methods generally suffer from drawbacks such as cumbersome operation, high construction difficulty, and reduced anchor bolt fatigue performance. Therefore, improving construction efficiency and ensuring the mechanical and thermal bridging properties of the anchor bolts have become crucial issues that urgently need to be addressed. Summary of the Invention

[0007] To address the problems existing in the prior art, this invention provides a countersunk hole opening device and construction method for anchor plates in building insulation systems. It is applicable to the countersunk construction of all types of anchor plates and effectively solves the defects of existing construction processes, such as cumbersome operation, high construction difficulty, and reduced anchor fatigue. It achieves the overall thermal bridging effect of the building external insulation system and improves the weather resistance of the anchor.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a countersunk hole drilling device for anchor bolts and anchor plates in a building insulation system, comprising a drill bit clamp, a hole-drilling tool, and a hole-drilling depth limiting baffle; the drill bit clamp is fixedly installed on the drill bit, the hole-drilling tool is fixedly installed on the drill bit clamp, and the hole-drilling depth limiting baffle is fixedly installed on the hole-drilling tool.

[0009] The drill bit chuck adopts a double-lobed structure, including a No. 1 chuck block and a No. 2 chuck block. The No. 1 chuck block and the No. 2 chuck block have the same structure and are fastened together to form a cylindrical drill bit chuck.

[0010] The axial center hole of the drill bit chuck is set as the drill bit clamping hole, and the drill bit chuck is clamped and fixed to the drill bit through the drill bit clamping hole.

[0011] A hole-opening tool positioning groove is provided on the convex ridge surface in the middle of the No. 1 clamping block / No. 2 clamping block. The hole-opening tool positioning groove is parallel to the drill bit clamping hole. A type II threaded hole is provided at the bottom of the hole-opening tool positioning groove.

[0012] Type I threaded holes and Type I smooth holes are respectively provided on the two wings of the No. 1 clamping block and the No. 2 clamping block. When the No. 1 clamping block and the No. 2 clamping block are fastened together to form a drill bit clamp, the Type I threaded hole of the No. 1 clamping block and the Type I smooth hole of the No. 2 clamping block are directly opposite each other, and the Type I smooth hole of the No. 1 clamping block and the Type I threaded hole of the No. 2 clamping block are directly opposite each other. The directly opposite Type I threaded hole and Type I smooth hole are connected and fixed by Type I fastening screws.

[0013] The drilling tool includes an outer cutting cylinder, an inner cutting cylinder, a cutting spoke, and a drilling tool positioning block. The outer cutting cylinder is coaxially mounted on the outside of the inner cutting cylinder, and the outer cutting cylinder and the inner cutting cylinder are fixedly connected by the cutting spoke. The inner cutting cylinder is coaxially mounted on the outside of the drill bit. The cutting edges of the outer cutting cylinder, the inner cutting cylinder, and the cutting spoke are distributed on the same side. The drilling tool positioning block is fixedly set on the inside of the outer cutting cylinder and located at the non-cutting edge cylinder opening. The number of drilling tool positioning blocks and drilling tool positioning slots are the same and their positions correspond one-to-one. The drilling tool positioning blocks and drilling tool positioning slots are inserted and matched.

[0014] A type II optical hole is provided on the hole-opening tool positioning block. The type II optical hole and the type II threaded hole are directly opposite each other. The type II optical hole and the type II threaded hole are connected and fixed by a type II fastening screw.

[0015] Chip discharge ports are evenly distributed circumferentially in the middle of the outer cutting cylinder. Type III threaded holes are arranged in a linear array between adjacent chip discharge ports. The center line of the Type III threaded holes is parallel to the axial center line of the outer cutting cylinder.

[0016] The hole depth limiting baffle adopts a circular structure and is coaxially fitted on the outside of the outer cutting cylinder. Ear plates are evenly distributed and fixed along the circumference on the inner hole side of the hole depth limiting baffle. The number of ear plates is the same as the number of lines of type III threaded holes and their positions correspond one-to-one. Type III light holes are opened on the ear plates. The type III light holes are directly opposite the type III threaded holes. The directly opposite type III light holes and type III threaded holes are connected and fixed by type III fastening screws.

[0017] The construction method for the anchor bolt and anchor plate countersunk hole device for the building insulation system includes the following steps:

[0018] Step 1: Attach the No. 1 and No. 2 clamps of the drill bit chuck to the drill bit, so that the drill bit is clamped in the drill bit clamping hole of the drill bit chuck. Then, insert the Type I fastening screw between the opposite Type I threaded hole and Type I smooth hole, and then tighten the Type I fastening screw to clamp and fix the drill bit chuck to the drill bit.

[0019] Step 2: Insert the inner cutting sleeve of the hole-opening tool into the drill bit until the hole-opening tool positioning block is accurately inserted into the hole-opening tool positioning groove, so that the Type II smooth hole and the Type II threaded hole coincide. Then, install the Type II fastening screw between the opposite Type II smooth hole and the Type II threaded hole, and then tighten the Type II fastening screw to fix the hole-opening tool on the drill bit holder.

[0020] Step 3: Insert the hole depth limiting baffle onto the outer cutting cylinder of the hole-opening tool. Adjust the axial position of the hole depth limiting baffle according to the preset hole depth so that the Type III smooth hole on the ear plate coincides with the Type III threaded hole at the corresponding axial position. Then, insert the Type III fastening screw between the opposite Type III smooth hole and the Type III threaded hole, and then tighten the Type III fastening screw to fix the hole depth limiting baffle onto the hole-opening tool.

[0021] Step 4: Install the drill bit equipped with the countersunk hole-opening device onto the drilling machine, then start the drilling machine to drive the drill bit and its countersunk hole-opening device to rotate synchronously, so that the drill bit drills into the insulation board and the base wall in sequence, and the hole-opening tool then drills into the insulation board until the hole-opening depth limit baffle contacts the insulation board. At this time, the hole-opening depth reaches the design requirements, and the drilling in the base wall is completed simultaneously.

[0022] Step 5: Pull the drill bit out of the drilled hole, and then install the anchor bolt inside the drilled hole. At this time, the anchor plate is directly sunk into the countersunk hole of the insulation board. Then, fill and seal the countersunk hole on the insulation board, keeping the filler flush with the outer surface of the insulation board.

[0023] The beneficial effects of this invention are:

[0024] The present invention relates to a countersunk hole device and construction method for anchor plates in building insulation systems. It is applicable to the countersunk construction of all types of anchor plates and effectively solves the defects of existing construction processes, such as cumbersome operation, high construction difficulty, and reduced anchor fatigue. It achieves the overall thermal bridging effect of the building external insulation system and improves the weather resistance of the anchor. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a countersunk hole device for an anchor bolt and anchor plate in a building insulation system according to the present invention (view 1);

[0026] Figure 2 This is a schematic diagram of the structure of a countersunk hole device for an anchor bolt and anchor plate in a building insulation system according to the present invention (view 2);

[0027] Figure 3 This is a structural schematic diagram (view 1) of an anchor bolt and anchor plate countersunk hole opening device (explosion) for a building insulation system according to the present invention;

[0028] Figure 4 This is a structural schematic diagram (view 1) of an anchor bolt and anchor plate countersunk hole opening device (explosion) for a building insulation system according to the present invention;

[0029] Figure 5 This is a schematic diagram of the drill bit clamp of the present invention;

[0030] Figure 6 This is a schematic diagram of the drill bit clamp (type I fastening screw not shown) of the present invention;

[0031] Figure 7 This is a schematic diagram of the No. 1 clamping block structure of the drill bit clamp of the present invention (view 1);

[0032] Figure 8 This is a schematic diagram of the No. 2 clamping block structure of the drill bit clamp of the present invention (view 2);

[0033] Figure 9 This is a schematic diagram of the hole-opening tool of the present invention (view 1);

[0034] Figure 10 This is a schematic diagram of the hole-opening tool of the present invention (viewpoint two);

[0035] Figure 11 This is a schematic diagram of the opening depth limiting baffle of the present invention (view 1);

[0036] Figure 12 This is a schematic diagram of the opening depth limiting baffle of the present invention (view 2);

[0037] In the diagram, 1—drill bit chuck, 2—hole-making tool, 3—hole-making depth limiting baffle, 4—drill bit, 5—clamping block ①, 6—clamping block ②, 7—drill bit holding hole, 8—hole-making tool positioning groove, 9—Type I threaded hole, 10—Type I smooth hole, 11—Type I fastening screw, 12—Type II threaded hole, 13—outer cutting cylinder, 14—inner cutting cylinder, 15—cutting spoke, 16—hole-making tool positioning block, 17—Type II smooth hole, 18—Type II fastening screw, 19—chip removal port, 20—Type III threaded hole, 21—ear plate, 22—Type III smooth hole, 23—Type III fastening screw. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1-12 As shown, a countersunk hole drilling device for anchor plates in a building insulation system includes a drill bit chuck 1, a drilling tool 2, and a drilling depth limiting baffle 3. The drill bit chuck 1 is fixedly mounted on a drill bit 4, the drilling tool 2 is fixedly mounted on the drill bit chuck 1, and the drilling depth limiting baffle 3 is fixedly mounted on the drilling tool 2. Specifically, the drill bit chuck 1, the drilling tool 2, and the drilling depth limiting baffle 3 are made of metal or non-metal composite materials.

[0040] The drill bit chuck 1 adopts a double-lobed structure, including a ① chuck block 5 and a ② chuck block 6. The ① chuck block 5 and the ② chuck block 6 have the same structure and are fastened together to form a cylindrical drill bit chuck 1.

[0041] The axial center hole of the drill bit chuck 1 is set as the drill bit clamping hole 7, and the drill bit chuck 1 is clamped and fixed on the drill bit 4 through the drill bit clamping hole 7.

[0042] A hole-opening tool positioning groove 8 is provided on the convex ridge surface of the first clamping block 5 / second clamping block 6. The hole-opening tool positioning groove 8 is parallel to the drill bit clamping hole 7. A type II threaded hole 12 is provided at the bottom of the hole-opening tool positioning groove 8.

[0043] Type I threaded holes 9 and Type I smooth holes 10 are respectively provided on the two wings of the No. ① clamping block 5 and No. ② clamping block 6. When the No. ① clamping block 5 and No. ② clamping block 6 are fastened together to form the drill bit chuck 1, the Type I threaded hole 9 of the No. ① clamping block 5 and the Type I smooth hole 10 of the No. ② clamping block 6 are directly opposite each other. The directly opposite Type I threaded hole 9 and Type I smooth hole 10 are connected and fixed by Type I fastening screws 11.

[0044] The drilling tool 2 includes an outer cutting cylinder 13, an inner cutting cylinder 14, a cutting spoke 15, and a drilling tool positioning block 16. The outer cutting cylinder 13 is coaxially fitted onto the outside of the inner cutting cylinder 14, and the outer cutting cylinder 13 and the inner cutting cylinder 14 are fixedly connected by the cutting spoke 15. The inner cutting cylinder 14 is coaxially fitted onto the outside of the drill bit 4. The cutting edges of the outer cutting cylinder 13, the inner cutting cylinder 14, and the cutting spoke 15 are distributed on the same side. The drilling tool positioning block 16 is fixedly installed inside the outer cutting cylinder 13 and located at the non-cutting edge opening. The number of drilling tool positioning blocks 16 and drilling tool positioning slots 8 are the same, and their positions correspond one-to-one. The drilling tool positioning blocks 16 and drilling tool positioning slots 8 are inserted into each other. Specifically, the outer diameter of the outer cutting cylinder 13 is greater than or equal to the diameter of the anchor plate.

[0045] A type II light hole 17 is provided on the hole-opening tool positioning block 16. The type II light hole 17 is directly opposite to the type II threaded hole 12. The type II light hole 17 and the type II threaded hole 12 are connected and fixed by a type II fastening screw 18.

[0046] Chip discharge ports 19 are evenly distributed circumferentially in the middle of the outer cutting cylinder 13. Type III threaded holes 20 are arranged in a linear array between adjacent chip discharge ports 19. The center line of the Type III threaded holes 20 is parallel to the axial center line of the outer cutting cylinder 13.

[0047] The opening depth limiting baffle 3 adopts a circular structure and is coaxially fitted on the outside of the outer cutting cylinder 13. Ear plates 21 are evenly distributed and fixed along the circumference on the inner hole side of the opening depth limiting baffle 3. The number of ear plates 21 is the same as the number of lines of type III threaded holes 20 and their positions correspond one-to-one. Type III light holes 22 are opened on the ear plates 21. Type III light holes 22 are directly opposite to type III threaded holes 20. The directly opposite type III light holes 22 and type III threaded holes 20 are connected and fixed by type III fastening screws 23.

[0048] The construction method for the anchor bolt and anchor plate countersunk hole device for the building insulation system includes the following steps:

[0049] Step 1: Attach the first clamping block 5 and the second clamping block 6 of the drill bit chuck 1 to the drill bit 4, so that the drill bit 4 is clamped in the drill bit clamping hole 7 of the drill bit chuck 1. Then, insert the type I fastening screw 11 between the opposite type I threaded hole 9 and type I smooth hole 10, and then tighten the type I fastening screw 11 to clamp and fix the drill bit chuck 1 on the drill bit 4.

[0050] Step 2: Insert the inner cutting cylinder 14 of the hole-opening tool 2 onto the drill bit 4 until the hole-opening tool positioning block 16 is accurately inserted into the hole-opening tool positioning groove 8, so that the type II smooth hole 17 and the type II threaded hole 12 coincide. Then, insert the type II fastening screw 18 between the opposite type II smooth hole 17 and the type II threaded hole 12, and then tighten the type II fastening screw 18 to fix the hole-opening tool 2 onto the drill bit holder 1.

[0051] Step 3: Insert the hole depth limiting baffle 3 onto the outer cutting cylinder 13 of the hole-opening tool 2. Adjust the axial position of the hole depth limiting baffle 3 according to the preset hole depth so that the type III smooth hole 22 on the ear plate 21 coincides with the type III threaded hole 20 at the corresponding axial position. Then, insert the type III fastening screw 23 between the opposite type III smooth hole 22 and the type III threaded hole 20. Then tighten the type III fastening screw 23 to fix the hole depth limiting baffle 3 onto the hole-opening tool 2.

[0052] Step 4: Install the drill bit 4 with the countersunk hole-opening device onto the drilling machine, then start the drilling machine to drive the drill bit 4 and its countersunk hole-opening device to rotate synchronously, so that the drill bit 4 drills into the insulation board and the base wall in sequence, and the hole-opening tool 2 then drills into the insulation board until the hole-opening depth limit baffle 3 contacts the insulation board. At this time, the hole-opening depth reaches the design requirements, and the drilling in the base wall is completed simultaneously.

[0053] Step 5: Remove drill bit 4 from the drilled hole, and then install the anchor bolt inside the hole. At this point, the anchor plate is directly sunk into the countersunk hole of the insulation board. Then, fill and seal the countersunk hole on the insulation board, ensuring the filler is flush with the outer surface of the insulation board. Specifically, the filler in the countersunk hole can be the same material as the insulation board or other thermal insulation materials.

[0054] The solutions described in the embodiments are not intended to limit the scope of patent protection of this invention. All equivalent implementations or modifications that do not depart from the scope of this invention are included in the patent scope of this case.

Claims

1. A countersunk hole device for anchor bolts and anchor plates in a building insulation system, characterized in that: It includes a drill bit chuck, a hole-opening tool, and a hole-opening depth limiting baffle; the drill bit chuck is fixedly mounted on the drill bit, the hole-opening tool is fixedly mounted on the drill bit chuck, and the hole-opening depth limiting baffle is fixedly mounted on the hole-opening tool.

2. The anchor bolt countersunk hole opening device for a building insulation system according to claim 1, characterized in that: The drill bit chuck adopts a double-lobed structure, including a No. 1 chuck block and a No. 2 chuck block. The No. 1 chuck block and the No. 2 chuck block have the same structure and are fastened together to form a cylindrical drill bit chuck.

3. The anchor bolt countersunk hole opening device for a building insulation system according to claim 1, characterized in that: The axial center hole of the drill bit chuck is set as the drill bit clamping hole, and the drill bit chuck is clamped and fixed to the drill bit through the drill bit clamping hole.

4. The anchor bolt countersunk hole opening device for a building insulation system according to claim 2, characterized in that: A hole-opening tool positioning groove is provided on the convex ridge surface in the middle of the No. 1 clamping block / No. 2 clamping block. The hole-opening tool positioning groove is parallel to the drill bit clamping hole. A type II threaded hole is provided at the bottom of the hole-opening tool positioning groove.

5. The anchor bolt countersunk hole opening device for a building insulation system according to claim 2, characterized in that: Type I threaded holes and Type I smooth holes are respectively provided on the two wings of the No. 1 clamping block and the No. 2 clamping block. When the No. 1 clamping block and the No. 2 clamping block are fastened together to form a drill bit clamp, the Type I threaded hole of the No. 1 clamping block and the Type I smooth hole of the No. 2 clamping block are directly opposite each other, and the Type I smooth hole of the No. 1 clamping block and the Type I threaded hole of the No. 2 clamping block are directly opposite each other. The directly opposite Type I threaded hole and Type I smooth hole are connected and fixed by Type I fastening screws.

6. The anchor bolt countersunk hole opening device for a building insulation system according to claim 4, characterized in that: The drilling tool includes an outer cutting cylinder, an inner cutting cylinder, a cutting spoke, and a drilling tool positioning block. The outer cutting cylinder is coaxially mounted on the outside of the inner cutting cylinder, and the outer cutting cylinder and the inner cutting cylinder are fixedly connected by the cutting spoke. The inner cutting cylinder is coaxially mounted on the outside of the drill bit. The cutting edges of the outer cutting cylinder, the inner cutting cylinder, and the cutting spoke are distributed on the same side. The drilling tool positioning block is fixedly set on the inside of the outer cutting cylinder and located at the non-cutting edge cylinder opening. The number of drilling tool positioning blocks and drilling tool positioning slots are the same and their positions correspond one-to-one. The drilling tool positioning blocks and drilling tool positioning slots are inserted and matched.

7. The anchor bolt countersunk hole device for a building insulation system according to claim 6, characterized in that: A type II optical hole is provided on the hole-opening tool positioning block. The type II optical hole and the type II threaded hole are directly opposite each other. The type II optical hole and the type II threaded hole are connected and fixed by a type II fastening screw.

8. The anchor bolt countersunk hole opening device for a building insulation system according to claim 6, characterized in that: Chip discharge ports are evenly distributed circumferentially in the middle of the outer cutting cylinder. Type III threaded holes are arranged in a linear array between adjacent chip discharge ports. The center line of the Type III threaded holes is parallel to the axial center line of the outer cutting cylinder.

9. The anchor bolt countersunk hole opening device for a building insulation system according to claim 1, characterized in that: The hole depth limiting baffle adopts a circular structure and is coaxially fitted on the outside of the outer cutting cylinder. Ear plates are evenly distributed and fixed along the circumference on the inner hole side of the hole depth limiting baffle. The number of ear plates is the same as the number of lines of type III threaded holes and their positions correspond one-to-one. Type III light holes are opened on the ear plates. The type III light holes are directly opposite the type III threaded holes. The directly opposite type III light holes and type III threaded holes are connected and fixed by type III fastening screws.

10. A construction method using the countersunk hole device for anchor bolts and anchor plates in a building insulation system as described in claim 1, characterized in that... Includes the following steps: Step 1: Attach the No. 1 and No. 2 clamps of the drill bit chuck to the drill bit, so that the drill bit is clamped in the drill bit clamping hole of the drill bit chuck. Then, insert the Type I fastening screw between the opposite Type I threaded hole and Type I smooth hole, and then tighten the Type I fastening screw to clamp and fix the drill bit chuck to the drill bit. Step 2: Insert the inner cutting sleeve of the hole-opening tool into the drill bit until the hole-opening tool positioning block is accurately inserted into the hole-opening tool positioning groove, so that the Type II smooth hole and the Type II threaded hole coincide. Then, install the Type II fastening screw between the opposite Type II smooth hole and the Type II threaded hole, and then tighten the Type II fastening screw to fix the hole-opening tool on the drill bit holder. Step 3: Insert the hole depth limiting baffle onto the outer cutting cylinder of the hole-opening tool. Adjust the axial position of the hole depth limiting baffle according to the preset hole depth so that the Type III smooth hole on the ear plate coincides with the Type III threaded hole at the corresponding axial position. Then, insert the Type III fastening screw between the opposite Type III smooth hole and the Type III threaded hole, and then tighten the Type III fastening screw to fix the hole depth limiting baffle onto the hole-opening tool. Step 4: Install the drill bit equipped with the countersunk hole-opening device onto the drilling machine, then start the drilling machine to drive the drill bit and its countersunk hole-opening device to rotate synchronously, so that the drill bit drills into the insulation board and the base wall in sequence, and the hole-opening tool then drills into the insulation board until the hole-opening depth limit baffle contacts the insulation board. At this time, the hole-opening depth reaches the design requirements, and the drilling in the base wall is completed simultaneously. Step 5: Pull the drill bit out of the drilled hole, and then install the anchor bolt inside the drilled hole. At this time, the anchor plate is directly sunk into the countersunk hole of the insulation board. Then, fill and seal the countersunk hole on the insulation board, keeping the filler flush with the outer surface of the insulation board.

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