Disassembly-free and chiseling-free bolt embedded hole structure and construction method

Abstract

The invention discloses a disassembly-free and chiseling-free bolt embedded hole structure and a construction method, and relates to the technical field of building construction. The disassembly-free and chiseling-free bolt embedded hole structure comprises an annular steel plate and straight ribs, the annular steel plate comprises a plurality of flexible splicing pieces, each flexible splicing piece is provided with a clamping piece and a clamping groove, each clamping piece is provided with a locking piece, the annular steel plate and the straight ribs are sleeved with metal pieces, fins are arranged on the surfaces of the metal pieces, and the fins are arranged on the surfaces of the metal pieces. And a binding piece for binding the annular steel plate is arranged outside the metal sheet. The construction method of the disassembly-free and chiseling-free bolt embedded hole comprises the steps that the flexible splicing pieces and the straight ribs are manufactured, then the metal pieces and the binding pieces are installed, finally, the disassembly-free and chiseling-free bolt embedded hole structure and an embedded reinforcement cage are welded and fixed, then cement is poured, and after the cement is solidified, a bolt embedded hole is formed in a cavity in the disassembly-free and chiseling-free bolt embedded hole structure. The disassembly-free and chiseling-free bolt embedded hole structure and the construction method have the advantages that the construction efficiency is high, wood pattern materials are saved, and the quality of the bolt embedded hole is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a bolt embedded hole structure and construction method that do not require demolition and chiseling. Background Art

[0002] A water pump unit is a core device that converts the mechanical energy of a prime mover into liquid conveying energy and is widely used in industries, agriculture, municipal administration and other fields. At present, bolt connections are used at the upper, middle and lower connection parts of the water pump unit with concrete. For example, for a water pump unit with the model 3480HLQ-40, the diameter of the bolt to be fixed is 36 mm, the diameter of the bolt embedded hole is 200 mm, and the hole depth is 60 cm.

[0003] The current construction process uses wooden formwork cut strips to be pieced together into a cylindrical shape and is welded and reinforced on the structural steel bar mesh with 10 mm round steel. After the concrete has finally set, the wooden formwork needs to be removed for chiseling. Since the cross-section of the designed bolt embedded hole is circular, it is difficult to assemble and reinforce the wooden formwork. In addition, it is necessary to remove and chisel later. The chiseling space is narrow, and the large hole depth makes the chiseling difficult. The entire construction process is time-consuming and laborious. And the wooden formwork is generally removed by crushing. After the wooden formwork is crushed, it is almost impossible to be reused and can only be treated as construction waste, so it causes a certain amount of material waste. If the operation is not careful during the process of the drill breaking the wooden formwork, the drill bit contacting the concrete easily causes cracks in the concrete, affecting the effect of fixing the water pump unit.

[0004] Therefore, the existing technology needs to be improved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that it is difficult to chisel the bolt embedded hole in the existing technology, there is material waste, and it is easy to affect the quality of the concrete. The purpose is to provide a bolt embedded hole structure and construction method that do not require demolition and chiseling. By adopting corresponding technical solutions, it has the advantages of high construction efficiency, saving wooden formwork materials, and ensuring the quality of the bolt embedded hole.

[0006] The present invention is achieved through the following technical solutions: In a first aspect, the present invention provides a bolt embedded hole structure that does not require demolition and chiseling, which includes an annular steel plate. A plurality of vertical straight ribs are arranged along the circumferential direction of the annular steel plate. The annular steel plate is fixedly connected to the embedded reinforcement cage. The annular steel plate includes a plurality of flexible splicing pieces that are pieced together into a ring. Clips are arranged on the front and back of the flexible splicing piece near one end. A clamping groove adapted to the clip is arranged on the front and / or back of the flexible splicing piece near the other end. The clip is provided with a locking member connected to the flexible splicing piece. A metal sheet is sleeved outside the annular steel plate and the straight ribs. Fins inclined upward are arranged on the inner and outer surfaces of the metal sheet. A binding member for binding the annular steel plate is arranged outside the metal sheet.

[0007] Furthermore, in the present invention, the flexible splicing piece is provided with a mounting groove near one end portion, the clip is provided in the mounting groove, and the mounting groove and the clamping slot are located on the same side.

[0008] Furthermore, in the present invention, the thickness of the flexible splicing piece at the above-mentioned slot is the same as the distance between the two clips.

[0009] Furthermore, in the present invention, the locking member is configured as a bolt, and the clip and the slot are provided with a locking hole for the bolt to pass through.

[0010] Furthermore, in the present invention, a telescopic top round rod is provided inside the annular steel plate, and the end of the telescopic top round rod abuts against the straight rib.

[0011] Furthermore, in the present invention, the telescopic top round rod comprises a fixed portion and a telescopic rod, and the fixed portion is provided with a strain gauge for detecting force.

[0012] Furthermore, in the present invention, a threaded sleeve is provided at the end of the above-mentioned fixing portion, the threaded sleeve is threadedly connected to one end of the telescopic rod, and the threads at both ends of the threaded sleeve have opposite rotation directions, and a twisting portion is provided on the outside of the threaded sleeve.

[0013] Furthermore, in the present invention, the fixing portion and the end of the telescopic rod are provided with semicircular sleeves.

[0014] Furthermore, in the present invention, the above-mentioned binding member is configured as a clamp.

[0015] In a second aspect, the present invention further provides a method for constructing a pre-buried bolt hole without disassembly or chiseling, which adopts the pre-buried bolt hole structure without disassembly or chiseling as claimed in claim 1, and further includes the following method: First, scrap steel bars from the construction site are collected as straight bars, and scrap steel plates from the construction site are collected as flexible splicing sheets. The straight bars are cut into appropriate lengths according to the depth of the bolt pre-embedded holes, and the flexible splicing sheets are cut into appropriate sizes according to the size of the bolt pre-embedded holes. Slots are then cut on the surface of the flexible splicing sheets using a slotting machine. Then, the clips are welded to the front and back of the flexible splicing piece, and the two ends of the straight reinforcement are welded and fixed to the two flexible splicing pieces. Multiple flexible splicing pieces are spliced by inserting the clips into the card slots. Multiple flexible splicing pieces are sequentially connected end to end to form a circular steel plate. Then, wrap the metal sheet around the outside of the annular steel plate and the straight reinforcement, and use binding parts to fix the metal sheet and the annular steel plate together; Finally, the bolt embedded hole structure that does not require disassembly or chiseling is welded and fixed to the embedded steel reinforcement cage, and then cement is poured. After the cement solidifies, the cavity inside the bolt embedded hole structure that does not require disassembly or chiseling forms a bolt embedded hole.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention provides a bolt embedded hole structure that does not require disassembly or chiseling and a construction method. A cylindrical structure fixedly connected to the embedded steel reinforcement cage is composed of an annular steel plate, straight steel bars, and metal sheets. After the poured concrete solidifies, the internal cavity of the bolt embedded hole structure that does not require disassembly or chiseling forms a bolt embedded hole. Since the bolt embedded hole structure that does not require disassembly or chiseling can be prepared in advance before construction and replaces the wooden formwork in the prior art, it plays a role in saving wooden formwork materials. And after the poured concrete solidifies, the bolt embedded hole structure that does not require disassembly or chiseling does not need to be removed. The fixing bolts of the water pump unit can be installed in the bolt embedded hole structure that does not require disassembly or chiseling, saving the work processes of removal and chiseling, and having the advantage of high construction efficiency. At the same time, the work process of using a crushing drill to break the wooden formwork is also saved, which will not affect the quality of the bolt embedded hole, and thus ensures the fixing effect of the water pump unit. The bolt embedded hole structure that does not require disassembly or chiseling can also adjust the number of flexible splicing pieces in an annular steel plate according to actual needs. The more the number of flexible splicing pieces, the larger the diameter of the annular steel plate, which is suitable for making bolt embedded holes of different sizes and has a wider application scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings: Figure 1 is a schematic external view of the bolt embedded hole structure that does not require disassembly or chiseling according to an embodiment of the present invention; Figure 2 is a schematic view of the flexible splicing piece according to an embodiment of the present invention; Figure 3 is a partial cross-sectional schematic view of the connection of the flexible splicing pieces according to an embodiment of the present invention; Figure 4 is a schematic view of the end of the annular steel plate according to an embodiment of the present invention; Figure 5 is a schematic view of the telescopic top round rod according to an embodiment of the present invention.

[0018] Reference numerals in the drawings and corresponding component names: 1 - annular steel plate, 101 - flexible splicing piece, 102 - clip, 103 - card slot, 104 - installation groove, 105 - locking hole, 2 - straight rib, 3 - metal sheet, 301 - fin inclined upward, 4 - locking member, 5 - bundling member, 6 - telescopic top round rod, 601 - fixing part, 602 - telescopic rod, 603 - stress gauge, 604 - threaded sleeve, 605 - screwing part, 606 - semi-circular retaining sleeve. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the embodiments and the drawings. The illustrative embodiments and descriptions thereof of the present invention are only used to explain the present invention and shall not be construed as limiting the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] Embodiment 1 Combined with Figures 1 to 5 As shown, an embedded hole structure for bolts without disassembly and chiseling provided by Embodiment 1 of the present invention is described in detail as follows.

[0022] Referring to Figure 1 As shown, the embedded hole structure for bolts without disassembly and chiseling in Embodiment 1 mainly includes three parts: an annular steel plate 1, a straight rib 2, and a metal sheet 3. Among them, the annular steel plate 1 can be made of waste steel plates on the construction site, and the straight rib 2 can be made of waste steel bars on the construction site. Recycling waste steel reduces waste of raw materials and conforms to the sustainable construction concept of green environmental protection. The metal sheet 3 is directly purchased as a thinner sheet than the annular steel plate 1, which is convenient for wrapping the outside of the annular steel plate 1 and the straight rib 2, and the embedded hole structure for bolts without disassembly and chiseling is relatively easy to manufacture.

[0023] In this embodiment, in combination with Figure 1 and Figure 2 as shown, the top and bottom of the structure of the bolt embedded hole without demolition and chiseling of the hair have a circular steel plate 1 respectively. The circular steel plate 1 is in a circular shape, and each circular steel plate 1 is composed of a plurality of flexible splicing pieces 101. As Figure 4 shown, the circular steel plate 1 of this embodiment is successively composed of four flexible splicing pieces 101 connected end to end. The waste steel plate itself has a certain flexibility and can be bent under the action of external force, which is convenient for splicing.

[0024] Furthermore, in order to enable the plurality of flexible splicing pieces 101 to be spliced with each other, as Figure 2 shown, a clamping piece 102 is fixedly installed on the front and back of the left end of the flexible splicing piece 101 respectively. The fixing method can be welding. A rectangular clamping groove 103 is formed on the front of the right end of the flexible splicing piece 101. The upper and lower widths of the clamping groove 103 are the same as the upper and lower widths of the clamping piece 102. When the clamping piece 102 is inserted into the clamping groove 103 during installation, the clamping groove 103 restricts the up and down movement of the clamping piece 102, thereby aligning the adjacent two flexible splicing pieces 101 up and down.

[0025] It should be noted that, in combination with Figure 2 and Figure 3 shown, an installation groove 104 is formed on the front of the left end of the flexible splicing piece 101, and the front clamping piece is fixedly installed in the installation groove 104. The installation groove 104 and the clamping groove 103 have the same groove depth. Therefore, the thickness of the flexible splicing piece 101 at the clamping groove 103 is the same as the distance between the two clamping pieces 102, which is convenient for connecting the clamping pieces 102.

[0026] In this embodiment, in combination with Figure 2 and Figure 3 shown, in order to make the connection between the two flexible splicing pieces 101 firm, a through locking hole 105 is formed on the clamping piece 102, and a through locking hole 105 is also formed at the corresponding position of the clamping groove 103. When the clamping piece 102 is inserted into the clamping groove 103 of the flexible splicing piece 101, the locking holes 105 are aligned and communicated, and then a locking member 4 is inserted for fixed connection.

[0027] It should be noted that the locking member 4 can be a bolt, which has the advantages of simple structure and firm connection.

[0028] In this embodiment, since the circular steel plate 1 is composed of a plurality of flexible splicing pieces 101 and the circular steel plate 1 needs to bear the pressure of the concrete after the concrete is poured, in order to prevent the flexible splicing pieces 101 from deforming greatly, the structure of the bolt embedded hole without demolition and chiseling of the hair also uses a telescopic top round rod 6 for support.

[0029] Furthermore, in combination with Figure 4 and Figure 5As shown, the telescopic top round rod 6 includes four parts: a fixed part 601, a telescopic rod 602, a strain gauge 603, and a threaded sleeve 604. The strain gauge 603 is installed on the fixed part 601. By analyzing the force data of the fixed part 601 collected by the strain gauge 603, the force condition of the telescopic top round rod 6 can be understood. Figure 5 As shown, the right end of the fixed portion 601 is threaded, and the left end of the telescopic rod 602 is also threaded. The threaded sleeve 604 has threads at both ends, threadedly connected to the fixed portion 601 and the telescopic rod 602, respectively. The threads at both ends of the threaded sleeve 604 have opposite rotation directions. A twisting portion 605 is provided on the outside of the threaded sleeve 604. The twisting portion 605 has a regular hexagonal cross-section, which facilitates the insertion of a twist wrench into the threaded sleeve 604.

[0030] In combination Figure 4 and Figure 5 As shown, the outer ends of the fixing portion 601 and the telescopic rod 602 are provided with semicircular clamping sleeves 606, which can match the straight rib 2, and the straight rib 2 is embedded in the semicircular clamping sleeves 606 to provide stable support.

[0031] To install the telescopic top round rod 6, first rotate the threaded sleeve 604 to adjust the overall length of the telescopic top round rod 6. Then, connect the semicircular ferrules 606 at both ends of the telescopic top round rod 6 to the straight bar 2. Finally, rotate the threaded sleeve 604 to tighten the telescopic top round rod 6 and the straight bar 2. The pre-buried bolt hole structure that does not require disassembly or roughening requires at least two telescopic top round rods 6 to be installed, and the two telescopic top round rods 6 are arranged in a cross shape, tightening the annular steel plate 1 into a circular shape. After pouring concrete, the data collected by the strain gauge 603 is used to determine whether additional telescopic top round rods 6 are needed for support.

[0032] In this embodiment, combined with Figure 1 As shown, the metal sheet 3 is made of galvanized sheet metal and has upward-facing fins 301 on its surface. These fins 301 increase the contact area with the concrete, providing a more secure fixation. The metal sheet 3 is wrapped around the annular steel plate 1 and the straight bars 2, and secured with a binding 5. The binding 5 is a clamp, offering a simple structure and effective fixation.

[0033] Example 2 This embodiment 2 provides a method for constructing pre-buried bolt holes that do not require disassembly or chiseling, and adopts the pre-buried bolt hole structure that does not require disassembly or chiseling in embodiment 1.

[0034] First, scrap steel bars from the construction site are collected as straight bars 2, and scrap steel plates from the construction site are collected as flexible splicing sheets 101. The straight bars 2 are cut into appropriate lengths according to the depths of the pre-embedded bolt holes, and the flexible splicing sheets 101 are cut into appropriate sizes according to the sizes of the pre-embedded bolt holes. A slotting machine is used to open slots 103 on the surface of the flexible splicing sheets 101. Then, the clips 102 are welded to the front and back of the flexible splicing piece 101, and the two ends of the straight rib 2 are welded and fixed to the two flexible splicing pieces 101. Multiple flexible splicing pieces 101 are spliced together by inserting the clips 102 into the card slots 103. Multiple flexible splicing pieces 101 are sequentially connected end to end to form an annular steel plate 1; Then, wrap the metal sheet 3 around the annular steel plate 1 and the straight rib 2, and use the binding piece 5 to securely connect the metal sheet 3 and the annular steel plate 1. Finally, the disassembly-free and roughening-free bolt embedded hole structure is welded and fixed to the embedded steel cage, and then cement is poured. After the cement solidifies, the cavity inside the disassembly-free and roughening-free bolt embedded hole structure forms a bolt embedded hole.

[0035] The working principle of the disassembly-free and chiseling-free bolt embedded hole structure and construction method of the present invention is as follows: A cylindrical structure consisting of an annular steel plate 1, straight bars 2, and metal sheets 3, fixedly connected to a pre-embedded steel cage, allows for the internal cavity bolt holes of the non-disassembly and non-roughening bolt hole structure to be secured after the poured concrete solidifies. Because the non-disassembly and non-roughening bolt hole structure can be prepared in advance of construction, it replaces the wooden formwork used in the prior art and saves on wooden formwork material. Furthermore, after the poured concrete solidifies, the non-disassembly and non-roughening bolt hole structure does not need to be removed, allowing the pump unit's fixing bolts to be installed within the non-disassembly and non-roughening bolt hole structure, eliminating the need for removal and roughening, resulting in high construction efficiency. This also eliminates the need for a drill to break up the wooden formwork, which does not affect the quality of the bolt holes and thus ensures the proper securing of the pump unit. The non-disassembly and non-roughening bolt hole structure also allows for the number of flexible splicing pieces 101 within the annular steel plate 1 to be adjusted according to actual needs. A greater number of flexible splicing pieces 101 results in a larger diameter of the annular steel plate 1, making it suitable for creating bolt holes of varying sizes and offering a wider range of applications.

[0036] To sum up, the present invention provides a disassembly-free and roughening-free bolt embedded hole structure, which includes an annular steel plate 1, and the annular steel plate 1 is provided with a plurality of vertical straight ribs 2 along its annular direction. The annular steel plate 1 is fixedly connected to the embedded steel cage. The annular steel plate 1 includes a plurality of flexible splicing pieces 101 assembled into a circular ring, and the front and back sides of the flexible splicing piece 101 near one end are provided with clips 102, and the front and / or back sides of the flexible splicing piece 101 near the other end are provided with a card groove 103 adapted to the clip 102, and the clip 102 is provided with a locking piece 4 connected to the flexible splicing piece 101, and the outer part of the annular steel plate 1 and the straight rib 2 is provided with a metal sheet 3, and the inner and outer surfaces of the metal sheet 3 are provided with fins 301 inclined upward, and the outside of the metal sheet 3 is provided with a binding piece 5 for tightening the annular steel plate 1. The flexible splicing piece 101 is provided with a mounting groove 104 near one end, and the clip 102 is provided in the mounting groove 104, and the mounting groove 104 and the card slot 103 are located on the same side. The thickness of the flexible splicing piece 101 at the card slot 103 is the same as the distance between the two clips 102. The locking member 4 is configured as a bolt, and the clip 102 and the card slot 103 are provided with a locking hole 105 for the bolt to pass through. A telescopic top round rod 6 is provided inside the annular steel plate 1, and the end of the telescopic top round rod 6 abuts against the straight rib 2. The telescopic top round rod 6 includes a fixed part 601 and a telescopic rod 602, and the fixed part 601 is provided with a stress gauge 603 for detecting force. A threaded sleeve 604 is provided at the end of the fixed part 601, and the threaded sleeve 604 is threadedly connected to one end of the telescopic rod 602, and the threads at the two ends of the threaded sleeve 604 are in opposite directions. A twisting part 605 is provided on the outside of the threaded sleeve 604. The ends of the fixing portion 601 and the telescopic rod 602 are provided with semicircular clamping sleeves 606. The binding member 5 is configured as a clamp.

[0037] The present invention also provides a method for constructing a pre-buried bolt hole without disassembly or roughening, which adopts the pre-buried bolt hole structure without disassembly or roughening as claimed in claim 1, and also includes the following method: first, collecting scrap steel bars on the construction site as straight bars 2, collecting scrap steel plates on the construction site as flexible splicing pieces 101, cutting the straight bars 2 into appropriate lengths according to the depth of the pre-buried bolt holes, cutting the flexible splicing pieces 101 into appropriate sizes according to the size of the pre-buried bolt holes, and using a slotting machine to open a card slot 103 on the surface of the flexible splicing piece 101; then, welding the clip 102 to the positive side of the flexible splicing piece 101 The front and back surfaces are provided, and the two ends of the straight reinforcement 2 and the two flexible splicing pieces 101 are welded and fixed. Multiple flexible splicing pieces 101 are spliced by inserting the clips 102 into the slots 103. Multiple flexible splicing pieces 101 are connected end to end in sequence to form an annular steel plate 1; then, the metal sheet 3 is wrapped around the outside of the annular steel plate 1 and the straight reinforcement 2, and the binding piece 5 is used to fix the metal sheet 3 and the annular steel plate 1; finally, the disassembly-free and roughening-free bolt embedded hole structure is welded and fixed to the embedded steel cage, and then cement is poured. After the cement solidifies, the cavity inside the disassembly-free and roughening-free bolt embedded hole structure forms a bolt embedded hole.

[0038] Therefore, the disassembly-free and roughening-free bolt embedded hole structure and construction method provided by the present invention have the advantages of high construction efficiency, saving wooden formwork materials, and ensuring the quality of the bolt embedded holes.

[0039] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structure of a bolt embedded hole that does not require disassembly or chiseling of the surface, characterized in that, It includes a ring-shaped steel plate (1), several vertical straight ribs (2) are arranged along the circumferential direction of the ring-shaped steel plate (1), the ring-shaped steel plate (1) is fixedly connected to the embedded steel reinforcement cage, the ring-shaped steel plate (1) includes several flexible splicing pieces (101) that are pieced together to form a ring, clamping pieces (102) are arranged on the front and back of the flexible splicing piece (101) near one end, and a clamping groove (103) adapted to the clamping piece (102) is arranged on the front and / or back of the flexible splicing piece (101) near the other end, the clamping piece (102) is provided with a locking member (4) connected to the flexible splicing piece (101), a metal sheet (3) is sleeved outside the ring-shaped steel plate (1) and the straight rib (2), inclined upward fins (301) are arranged on the inner and outer surfaces of the metal sheet (3), and a binding member (5) for binding the ring-shaped steel plate (1) is arranged outside the metal sheet (3).

2. The structure of the bolt embedded hole that does not require disassembly and chiseling according to claim 1, wherein An installation groove (104) is arranged at one end of the flexible splicing piece (101) near one side, the clamping piece (102) is arranged in the installation groove (104), and the installation groove (104) and the clamping groove (103) are on the same side.

3. The bolt embedded hole structure that can be installed and roughened without disassembly according to claim 2, wherein The thickness of the flexible splicing piece (101) at the clamping groove (103) is the same as the distance between the two clamping pieces (102).

4. The structure of the bolt embedded hole that does not require disassembly or chiseling of the surface according to claim 1, characterized in that, The locking member (4) is configured as a bolt, and the clamping piece (102) and the clamping groove (103) are provided with locking holes (105) for the bolt to pass through.

5. The bolt embedded hole structure that can be installed and roughened without disassembly according to claim 1, characterized in that, A telescopic top round rod (6) is arranged inside the ring-shaped steel plate (1), and the end of the telescopic top round rod (6) abuts against the straight rib (2).

6. The bolt embedded hole structure that does not require disassembly or chiseling of the hair, according to claim 5, is characterized in that The telescopic top round rod (6) includes a fixed part (601) and a telescopic rod (602), and a stress gauge (603) for detecting the force is arranged on the fixed part (601).

7. The bolt embedded hole structure without disassembly and chiseling described in claim 6, characterized in that, A threaded sleeve (604) is arranged at the end of the fixed part (601), the threaded sleeve (604) is threadedly connected to one end of the telescopic rod (602), and the threads at both ends inside the threaded sleeve (604) have opposite helix directions, and a turning part (605) is arranged outside the threaded sleeve (604).

8. The bolt embedded hole structure that does not require disassembly or chiseling of the hair, according to claim 7, is characterized in that, Semicircular clamping sleeves (606) are arranged at the ends of the fixed part (601) and the telescopic rod (602).

9. The bolt embedded hole structure that does not require demolition and chiseling of the hairpin according to claim 1, characterized in that, The binding member (5) is configured as a hoop.

10. A construction method for pre-buried bolt holes without disassembly and chiseling, characterized in that, Adopting the bolt embedded hole structure that does not need to be disassembled and chiseled as described in claim 1, the following method is also included. First, collect the waste steel bars on the construction site as the straight ribs (2), collect the waste steel plates on the construction site as the flexible splicing pieces (101), cut the straight ribs (2) into appropriate lengths according to the depth of the bolt embedded hole, cut the flexible splicing pieces (101) into appropriate sizes according to the size of the bolt embedded hole, and use grooving machinery to cut the clamping grooves (103) on the surface of the flexible splicing pieces (101). Then, the clamping pieces (102) are welded to the front and back of the flexible splicing pieces (101), and both ends of the straight ribs (2) and the two flexible splicing pieces (101) are welded and fixed. Multiple flexible splicing pieces (101) are spliced by inserting the clamping pieces (102) into the card slots (103). After multiple flexible splicing pieces (101) are connected end to end in sequence, an annular steel plate (1) is formed; Then, the metal sheet (3) is wrapped outside the annular steel plate (1) and the straight ribs (2), and the binding piece (5) is used to fixedly connect the metal sheet (3) and the annular steel plate (1); Finally, the bolt pre-embedded hole structure without demolition and chiseling is welded and fixed to the pre-embedded reinforcement cage, and then cement is poured. After the cement solidifies, a bolt pre-embedded hole is formed in the cavity inside the bolt pre-embedded hole structure without demolition and chiseling.

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