Angle-adjustable anchor rod support

Abstract

The angle-adjustable anchor rod support comprises a base plate, a pressure bearing part and a telescopic part, the pressure bearing part and the telescopic part are hinged to the first surface of the base plate in a spaced mode, and the ends, away from the base plate, of the pressure bearing part and the telescopic part are hinged; the side face, away from the base plate, of the pressure bearing part forms a pressure bearing face, and an anchor rod body of the anchor rod can freely penetrate through the first anchor rod cavity of the base plate and the second anchor rod cavity of the pressure bearing part. The length of the telescopic part is adjustable, and the axial direction of the anchor rod body can be perpendicular to the pressure bearing face by adjusting the length of the telescopic part. By arranging the telescopic part with the adjustable length, before the anchor rod body is tensioned, the anchor rod body firstly penetrates through the first anchor rod cavity and the second anchor rod cavity, and the length of the telescopic part is accurately adjusted, so that the axial direction of the anchor rod body is perpendicular to the pressure bearing surface; by means of the anchor rod support, the angle of the anchor rod support does not need to be adjusted by adopting a steel plate padding method, the perpendicularity of the axial direction of the anchor rod body and the pressure bearing face can be improved, angle adjustment of the anchor rod support is completed at a time, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of foundation pit and slope support technology in geotechnical engineering, and particularly to an angle-adjustable anchor support. Background Technology

[0002] In deep foundation pit and high slope support engineering, walers are often used as deformation control components. These walers require anchor bolts for fixation and to provide reaction force. Since anchor bolts are often installed at an angle, anchor bolt supports are needed to ensure stable support. To improve construction efficiency, the anchor bolt inclination angle is typically divided into several levels, and the anchor bolt supports are prefabricated according to the inclination angle. However, in actual construction, there are unavoidable angular deviations in anchor bolt drilling. If prefabricated anchor bolt supports are used directly, the anchor bolt body cannot be tensioned axially, causing bending during tensioning and leading to significant deviations in prestress measurements. Therefore, steel plates of different thicknesses need to be placed on one side between the tensioning equipment and the anchor bolt support to adjust the tensioning direction. However, the steel plates often cannot fully meet the requirements, only reducing the angular deviation during anchor bolt tensioning. Therefore, it is essential to enable precise adjustment of the anchor bolt supports according to the actual construction needs. Summary of the Invention

[0003] To address the problem of angle deviation in existing anchor bolt supports, which makes it difficult to adjust the tensioning direction of tensioning equipment, this application proposes an angle-adjustable anchor bolt support. This support includes a base plate, a pressure-bearing portion and a telescopic portion hinged at intervals on a first surface of the base plate. The pressure-bearing portion and the telescopic portion are hinged together at their ends furthest from the base plate. The side of the pressure-bearing portion away from the base plate forms a pressure-bearing surface. The anchor bolt body can freely pass through the first anchor bolt cavity of the base plate and the second anchor bolt cavity of the pressure-bearing portion. The length of the telescopic portion is adjustable; adjusting the length of the telescopic portion allows the axial direction of the anchor bolt body to be perpendicular to the pressure-bearing surface.

[0004] The bearing surface of the pressure-bearing section supports the tensioning equipment for tensioning the anchor bolt body. During tensioning, the axial direction of the anchor bolt body should be as perpendicular as possible to the bearing surface so that during tensioning, the anchor bolt body deforms only axially, generating prestress and preventing bending deformation. This application utilizes an adjustable telescopic section. Before tensioning the anchor bolt body, it first passes through the first and second anchor bolt cavities, and the length of the telescopic section is precisely adjusted to ensure the axial direction of the anchor bolt body is perpendicular to the bearing surface. Using this application, there is no need to use steel plates to adjust the tensioning direction of the tensioning equipment. This not only ensures the perpendicularity of the anchor bolt body's axial direction to the bearing surface but also allows for one-time angle adjustment of the anchor bolt support, improving operational efficiency. When adjusting the tensioning direction of a tensioning device by using steel plates as pads, only the required thickness of the steel plates can be estimated. Therefore, in actual operation, it is often necessary to make multiple adjustments and use multiple steel plates of different thicknesses to complete the adjustment of the tensioning direction of the tensioning device, which is quite cumbersome.

[0005] Specifically, the telescopic part includes a stud, an adjusting rod, and a swing member connected in sequence. The two ends of the adjusting rod have an internal threaded hole and a plug, respectively. One end of the stud is hinged to the base plate, and the other end of the stud is screwed into the internal threaded hole. One end of the swing member is hinged to the end of the pressure bearing part away from the base plate. The end of the swing member away from the pressure bearing part has a circular insertion hole, and the plug of the adjusting rod is freely inserted into the insertion hole. By turning the adjusting rod, the length of the telescopic part can be adjusted.

[0006] In this design, the relative position of the adjusting rod and the stud can be adjusted simply by turning the adjusting rod, thereby adjusting the length of the telescopic part and thus the angle between the pressure-bearing part and the base plate. This allows for adjustment of the angle between the axial direction of the anchor rod and the pressure-bearing surface, ultimately ensuring that the axial direction of the anchor rod is perpendicular to the pressure-bearing surface. Utilizing the stepless adjustment function of the thread on the stud, continuous adjustment of the angle between the pressure-bearing part and the base plate is achieved, ensuring that the axial direction of the anchor rod is completely perpendicular to the pressure-bearing surface.

[0007] Furthermore, the telescopic part also includes a first hinge shaft, on which the stud is vertically fixed, and the stud is hinged to the base plate via the first hinge shaft. Utilizing the first hinge shaft improves the basic service life. Although the stud can be directly hinged to the base plate, in actual construction, two studs are usually required to provide relatively stable support for the pressure-bearing part. If the two studs are directly hinged to the base plate, the contact area between the stud and the base plate is small, which can easily lead to deformation of the base plate during the tensioning process of the anchor bolt. However, when hinged to the base plate via the hinge shaft, the stress-bearing area of ​​the base plate can be effectively increased, the deformation of the base plate can be reduced, and the service life of the anchor bolt support can be improved.

[0008] Furthermore, to facilitate the installation of the hinge shaft, a first support protruding from the first surface of the substrate is provided on the substrate, and the first hinge shaft is hinged to the first support.

[0009] Furthermore, the first support has a first inclined surface extending obliquely relative to the substrate and toward the pressure-bearing portion, the end of the first inclined surface away from the substrate extending obliquely away from the pressure-bearing portion; the first hinge groove of the first support has an inner surface with a superior arc shape, the first hinge groove is formed by the first inclined surface, the first hinge shaft includes a first hinge portion extending along its axial direction, the outer peripheral surface of the first hinge portion includes a first arc surface with a superior arc shape and a first plane closing both ends of the first arc surface, the first arc surface protruding in a direction away from the stud; or the outer peripheral surface of the first hinge portion is cylindrical; the first hinge portion is hinged in the first hinge groove.

[0010] The first inclined surface facing the pressure-bearing part allows the telescopic part to swing within the desired angle, preventing the first support from interfering with the swing of the telescopic part. This application sets the inner surface of the first hinge groove to a superior arc, giving the first hinge groove a radial notch. Utilizing the superior arc-shaped inner surface of the first hinge groove, the first hinge shaft can be stably held within the first hinge groove, and the radial notch of the first hinge groove becomes a channel for connecting the stud. A protrusion extending outward from the radial notch can be directly provided on the hinge shaft, allowing the stud to be connected to the protrusion. Alternatively, the stud can be directly connected to the first hinge part of the first hinge shaft via the radial notch.

[0011] Specifically, the stud is connected to the first hinge shaft by welding, screwing, or plugging.

[0012] When the stud is connected to the first hinge shaft by screwing or plugging, the first hinge shaft has a hole for the stud, which is formed by a recess in the first plane. When the stud is connected by screwing, the stud hole is an internally threaded hole; when the stud is connected by plugging, the inner circumferential surface of the stud hole is polygonal, and one end of the stud has a plug-in post with an outer circumferential surface that has the same shape as the inner circumferential surface of the stud hole. In specific construction, a more appropriate stud connection method can be selected according to the specific situation.

[0013] Furthermore, a locking nut is screwed onto the stud. This locking nut is located on the side of the adjusting rod away from the swinging component. Tightening this locking nut allows it to press tightly against the end face of the adjusting rod away from the swinging component, locking the relative position of the adjusting rod and the stud. During construction, vibrations generated by various construction equipment can cause the adjusting rod to rotate relative to the stud. Under the pressure of the anchor bolt, the length of the expansion joint shortens, reducing the angle between the pressure-bearing part and the base plate. The prestress of the anchor bolt also decreases accordingly. By tightly pressing the locking nut against the adjusting rod, a double-nut anti-loosening structure is formed, thereby reducing the probability of relative rotation between the adjusting rod and the stud.

[0014] Furthermore, to improve operational convenience, a positioning element is provided on the second surface of the substrate opposite to the first surface. This positioning element is used to connect to the waler. The positioning element can be a hook, bolt, or straight rod. When the positioning element is a hook, the waler has a corresponding hook portion, and the hook can be hooked onto the hook portion. When the positioning element is a bolt, the waler has a corresponding bolt hole, and the bolt can be screwed into the bolt hole. When the positioning element is a straight rod, the waler has a corresponding straight hole, and the straight rod can be inserted into the straight hole.

[0015] Since the base plate of the anchor bolt support often needs to be tilted or vertically set, without positioning components, workers need to manually support the anchor bolts and adjust their positions, which requires more personnel to participate in the operation. With the positioning components installed, there is no need to manually support the anchor bolts, reducing the number of workers required.

[0016] In specific construction, different shapes of positioning components can be used depending on the material and shape of the waler. For example, when H-beams are used as walers and the web of the H-beams is set horizontally, hooks can be used as positioning components, with the flanges of the H-beams serving as hooks. Of course, when the web of the H-beams is set horizontally, a vertical plate specifically for hooking anchor rod supports can also be welded onto the H-beams as a hook. When concrete walers are used, internally threaded steel pipes or unthreaded plain pipes can be pre-embedded in the concrete walers, and bolts or round steel can be used as positioning components.

[0017] Specifically, the pressure-bearing part includes a pressure-bearing plate, with a second hinge shaft and a second hinge end at opposite ends. The second hinge shaft is hinged to the base plate, and the second hinge end is hinged to the swing member. By using the second hinge shaft to hinge the pressure-bearing part to the base plate, the contact area between the pressure-bearing part and the base plate can be effectively increased, and the deformation of the base plate can be reduced.

[0018] Furthermore, a second support protruding from the first surface of the substrate is provided on the substrate, and the second hinge shaft is hinged to the second support.

[0019] The second support has a second inclined surface that extends obliquely relative to the substrate and toward the telescopic portion. The end of the second inclined surface away from the substrate extends obliquely away from the telescopic portion. The second hinge groove of the second support has an inner surface with a superior arc shape. The first hinge groove is formed by the first inclined surface. The second hinge shaft has a second hinge portion that extends along its axial direction. The second hinge portion has a second arc surface with a superior arc shape, and the second arc surface protrudes in a direction away from the second hinge end. Alternatively, the outer peripheral surface of the second hinge portion is cylindrical. The second hinge portion is hinged in the second hinge groove.

[0020] A second inclined surface facing the telescopic part is provided on the second support, which allows the pressure-bearing part to swing within the desired angle, avoiding interference from the second support on the swing of the pressure-bearing part. This application sets the inner surface of the second hinge groove to a superior arc, giving the second hinge groove a radial notch. Utilizing the superior arc-shaped inner surface of the second hinge groove, the second hinge shaft can be stably held within the second hinge groove, and the radial notch of the second hinge groove becomes a channel for connecting the pressure plate. A protrusion extending outward from the radial notch can be directly provided on the hinge shaft, allowing the pressure plate to be connected to the protrusion, or the pressure plate can be directly connected to the second hinge part of the second hinge shaft via the radial notch. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of one embodiment of an anchor bolt support.

[0022] Figure 2 for Figure 1 A perspective view of the embodiment shown.

[0023] Figure 3 This is a split diagram of the first hinge shaft and the stud.

[0024] Figure 4 This is a schematic diagram of the adjusting rod.

[0025] Figure 5 for Figure 1 The diagram shows the working state of the embodiment.

[0026] Figure 6 for Figure 5 A three-dimensional image. Detailed Implementation

[0027] The angle-adjustable anchor bracket 100 in this application is described in detail below. Please refer to [link / reference]. Figures 1-4 For clarity, Figure 2The adjusting rod 33 in the figure is deleted. The first arrow X in the attached figure indicates a first direction, and the second arrow Y indicates a second direction. The first and second directions are perpendicular. The anchor bracket 100 includes a base plate 11, a pressure-bearing portion 20 and a telescopic portion 30 hinged at intervals to a first surface 111 of the base plate 11. The pressure-bearing portion and the telescopic portion are hinged together at their ends away from the base plate 11. In this embodiment, the base plate is a rectangular steel plate, with its length extending along the second direction and its width extending along the first direction.

[0028] The two surfaces of the substrate in the thickness direction are referred to as the first surface 111 and the second surface 112, respectively. Two supports are provided on the first surface 111 of the substrate, namely the first support 12 and the second support 13, and the two supports are spaced apart along the second direction.

[0029] The telescopic part 30 includes a first hinge shaft 31, a stud 32, an adjusting rod 33, and a swing member 34 connected in sequence. Two studs and two adjusting rods are provided, and each stud corresponds to one adjusting rod. The two ends of the adjusting rod 33 have an internal threaded hole 333 and a plug 332, respectively. The internal threaded hole extends axially along the adjusting rod and passes through the end face of the adjusting rod away from the plug. One end of the stud is hinged to a first support via the first hinge shaft 31, that is, the stud is indirectly hinged to the first surface of the substrate via the first hinge shaft and the first support. The other end of the stud is screwed into the internal threaded hole of the corresponding adjusting rod. To facilitate screwing the adjusting rod, a screwing part is provided on the adjusting rod. In this embodiment, the screwing part is two opposing cut surfaces 334 provided on the outer wall of the adjusting rod. Tools such as wrenches can be held on the two cut surfaces to screw the adjusting rod to adjust the length of the telescopic part 30. Of course, in other embodiments, the screwing part can also be a regular hexagonal protrusion or groove similar to the shape of a nut. This application does not limit the specific structure of the screwing part, as long as it facilitates the screwing of the adjusting rod.

[0030] One end of the swing member has a hinge lug 341, which is hinged to one end of the pressure-bearing part 20. The end of the swing member away from the hinge lug has two circular insertion holes 342, spaced apart along a first direction. Each insertion hole corresponds to an adjusting rod 33, the plug of which is freely inserted into the corresponding insertion hole; in this embodiment, the plug is cylindrical. Twisting the adjusting rod allows adjustment of the length of the telescopic part.

[0031] A locking nut 35 is screwed onto each stud. The locking nut is located on the side of the adjusting rod away from the swinging part. Tightening the locking nut can make the locking nut press tightly against the end face of the adjusting rod away from the swinging part, locking the relative position of the adjusting rod and the stud.

[0032] In this embodiment, the first hinge shaft 31 includes a first hinge portion 311 and a first flat portion 312 extending along its axial direction. The first hinge portion 311 and the first flat portion 312 are integrally formed. The outer peripheral surface of the first hinge portion 311 includes a first arc surface 313 in the shape of a superior arc and a first plane 315 closing both ends of the first arc surface. Since the first hinge portion 311 and the first flat portion 312 are integrally formed, the first plane 315 forms the interface between the first hinge portion and the first flat portion. For clarity, in... Figure 3 In the diagram, the first plane 315 is represented by a dashed line.

[0033] The first hinge shaft has a stud hole 314 for connecting a stud. The stud hole is formed by a recess in the outer wall surface of the first flat plate portion 312 away from the first hinge portion 311. In this embodiment, the inner circumferential surface of the stud hole 314 is square, and one end of the stud has a plug 321. The outer circumferential surface of the plug 321 is the same shape as the inner circumferential surface of the stud hole 314. The stud hole is perpendicular to the first flat plate portion, and the plug 321 is inserted into the stud hole, so that the stud is vertically fixed on the first hinge shaft, and the first arc surface protrudes in the direction away from the stud. It can be understood that in other embodiments, the stud hole 314 may also be an equilateral triangle, a regular hexagon, or a rectangle, an asymmetric triangle, or other non-regular polygon. That is, in this embodiment, the stud is connected to the first hinge shaft by plugging, or the stud is indirectly connected to the first hinge shaft by plugging.

[0034] It is understood that in another embodiment, the stud can also be connected to the first hinge shaft by screwing. When the stud is screwed to the first hinge shaft, the stud hole is an internal thread hole, and the stud is directly screwed into the internal thread hole. The plug pin is eliminated, or the plug pin is replaced with a screw rod, which is screwed into the internal thread hole that serves as the stud hole. That is, the stud is indirectly screwed to the first hinge shaft.

[0035] Of course, in another embodiment, the stud can also be directly welded to the first plate portion, that is, the stud can be indirectly installed on the first hinge shaft via the first plate portion.

[0036] In this embodiment, the first hinge shaft includes a first hinge portion and a first flat plate portion. The first flat plate portion mainly expands the radial dimension of the first hinge shaft so that the stud hole has sufficient depth to meet the connection strength between the stud and the first hinge shaft. It can be understood that in other embodiments, when the radial dimension of the first hinge shaft can meet the depth of the stud hole, the first flat plate portion can be omitted, that is, the stud hole is formed by the first plane recess, that is, the stud is directly connected to the first hinge portion.

[0037] In this embodiment, the first support 12 includes two first support plate groups spaced apart along a first direction. Each first support plate group includes two first support plates 120. Each first support plate 120 has a first inclined surface 121 that extends obliquely relative to the substrate and toward the pressure-bearing portion. The end of the first inclined surface away from the substrate extends obliquely in a direction away from the pressure-bearing portion. All first inclined surfaces are coplanar.

[0038] Each first support plate has a first arcuate groove 122. The bottom surface of the first arcuate groove is an arcuate surface with a superior arc shape. The first arcuate groove is formed by the indentation of a first inclined surface, giving the first arcuate groove a first radial notch. The first inclined surfaces of all the first support plates together form the first inclined surface of the first support, and the first arcuate grooves of all the first support plates together form the first hinge groove of the first support. That is, the first hinge groove of the first support has an inner surface with a superior arc shape, and the first hinge groove is formed by the indentation of the first inclined surface. The first hinge shaft of the first hinge part is rotatably inserted into the first hinge groove, so that the first hinge part is hinged in the first hinge groove, and the first flat plate part 312 extends radially outward from the first radial notch into the first hinge groove.

[0039] This application does not impose specific restrictions on the number of first support plate groups or the number of first support plates in each first support plate group. The number of first support plates can be set according to specific needs. For example, only one first support plate group with only one first support plate can be set; or more first support plate groups can be set, and each first support plate group has only one first support plate or more first support plates.

[0040] In this embodiment, the structure of the second support 13 is the same as that of the first support and they are symmetrically arranged. The second support 13 includes two second support plate groups spaced apart along a first direction. Each second support plate group includes two second support plates 130. Each second support plate 130 has a second inclined surface 131 that extends obliquely relative to the substrate and faces the telescopic portion. The end of the second inclined surface away from the substrate extends obliquely away from the telescopic portion. All second inclined surfaces are coplanar.

[0041] Each of the second support plates has a second arcuate groove 132. The bottom surface of the second arcuate groove is an arcuate surface with a superior arc shape. The second arcuate groove is formed by the indentation of the second inclined surface, giving the second arcuate groove a second radial notch. The second inclined surfaces of all the second support plates together form the second inclined surface of the second support, and the second arcuate grooves of all the second support plates together form the second hinge groove of the second support. That is, the second hinge groove of the second support has an inner surface with a superior arc shape, and the second hinge groove is formed by the indentation of the second inclined surface. The second hinge shaft 22 described below is rotatably inserted into the second hinge groove, such that the second hinge shaft is hinged in the second hinge groove, and the second plate portion extends radially outward from the second radial notch into the second hinge groove.

[0042] In this embodiment, the pressure-bearing part 20 includes a pressure-bearing plate 21. The two opposite ends of the pressure-bearing plate have a second hinge shaft 22 and a second hinge end, respectively. The second hinge end has two lugs 23 protruding away from the second hinge shaft. The two lugs are spaced apart along a first direction, and a receiving groove 231 is formed between the two lugs. The hinge ear 341 extends into the receiving groove 231. After the pin shaft 41 passes through the lug and the hinge ear, the swing member 34 is hinged to the pressure-bearing plate via the pin shaft, thereby hinged the telescopic part 30 to the pressure-bearing part 20.

[0043] In this embodiment, the second hinge shaft 22 has a structure that is substantially the same as that of the first hinge shaft 31. The structure of the second hinge shaft can be found in the appendix corresponding to the first hinge shaft 31. Figure 3 The second hinge shaft 22 includes a second hinge portion 221 and a second flat plate portion 222 extending along the axial direction. The second hinge portion 221 and the second flat plate portion 222 are integrally formed. The outer peripheral surface of the second hinge portion 221 includes a second arc surface in the shape of an arc and a second plane that closes both ends of the second arc surface. Since the second hinge portion and the second flat plate portion are integrally formed, the second plane is formed as the interface between the second hinge portion and the second flat plate portion.

[0044] The pressure plate 21 is generally U-shaped and has two support arms extending from the second hinge end toward the second hinge axis. Both support arms are welded to the side of the second flat plate portion 222 opposite to the second hinge portion 221, causing the second hinge portion to protrude in the direction opposite to the second hinge end. The space enclosed by the two support arms, the second hinge end, and the second hinge axis forms a second anchor bolt cavity 212. The side of the pressure plate 21 opposite to the substrate forms a pressure-bearing surface 211, and a first anchor bolt cavity 113 in the form of a through hole is formed on the substrate.

[0045] It is understood that in other embodiments, the second plate portion may be omitted, and the support arm may be directly welded onto the second plane.

[0046] The anchor body 81 of the anchor rod can freely pass through the first anchor cavity of the base plate and the second anchor cavity of the pressure bearing part, and the length of the telescopic part can be adjusted so that the axial direction of the anchor body is perpendicular to the pressure bearing surface.

[0047] Since anchor bolt supports are often installed on vertical planes or inclined planes, to prevent the anchor bolt supports from sliding and affecting work efficiency, in this embodiment, a positioning member 14 is provided on the second surface 112 of the substrate. This positioning member is used to connect to the waler 88. Please refer to... Figure 5 and Figure 6In this embodiment, the waler 88 is composed of two horizontally extending and parallel H-beams. The web of the H-beams is horizontally positioned, and the positioning element 14 is a hook formed by angle steel welded to the base plate. The hook can hook onto the flange of the H-beam, wherein the flange of the H-beam forms the hooking part. This eliminates the need for operator support for the anchor bolt support, freeing the operator's hands, improving work efficiency, and preventing the anchor bolt support from falling due to errors. When the anchor bolt support is installed on the waler, the pressure-bearing part is located above the telescopic part.

[0048] It is understood that in other embodiments, when using concrete walers, plain tubes or threaded tubes can be pre-embedded in the concrete walers, and straight rods or bolts can be used as positioning elements to insert the straight rods into the pre-embedded plain tubes or to screw the bolts into the threaded tubes.

[0049] Before tensioning the anchor bolt body, the pad 86 is first inserted onto the anchor bolt body and supported on the bearing surface 211. Then, the adjusting rod is turned to adjust the length of the telescopic part 30 until the axial direction of the anchor bolt body is perpendicular to the bearing surface. Next, the locking nut is turned to press against the end face of the adjusting rod away from the swinging component, locking the relative position of the adjusting rod and the stud. The anchor bolt body is then tensioned using a jack, and after tensioning is complete, the anchor bolt body is locked using the anchor 87. The pad 86 is a steel plate of uniform thickness. The pad is not used to adjust the tensioning direction of the jack, but only to increase the contact area between the jack and the bearing surface.

[0050] In this embodiment, the outer peripheral surfaces of the first hinge portion and the second hinge portion are both composed of a curved arc surface and a plane. It can be understood that in other embodiments, round steel or round tubes can be directly used to make the first hinge portion and the second hinge portion, and the outer peripheral surfaces of the first hinge portion and the second hinge portion can be kept cylindrical.

Claims

1. An angle-adjustable anchor bolt support, characterized in that, It includes a substrate, a pressure-bearing part and a telescopic part that are hinged to a first surface of the substrate at intervals. The pressure-bearing part and the telescopic part are hinged together at their ends away from the substrate. The side of the pressure-bearing part away from the substrate is formed as a pressure-bearing surface. The anchor body of the anchor rod can freely pass through the first anchor rod cavity of the substrate and the second anchor rod cavity of the pressure-bearing part. The length of the telescopic part is adjustable. By adjusting the length of the telescopic part, the axial direction of the anchor body can be made perpendicular to the pressure-bearing surface.

2. The anchor bolt support according to claim 1, characterized in that, The telescopic part includes a stud, an adjusting rod, and a swing member connected in sequence. The two ends of the adjusting rod have an internal threaded hole and a plug, respectively. One end of the stud is hinged to the base plate, and the other end of the stud is screwed into the internal threaded hole. One end of the swing member is hinged to the end of the pressure bearing part away from the base plate. The end of the swing member away from the pressure bearing part has a circular insertion hole, and the plug of the adjusting rod is freely inserted into the insertion hole. By turning the adjusting rod, the length of the telescopic part can be adjusted.

3. The anchor bolt support according to claim 2, characterized in that, The telescopic part also includes a first hinge shaft, on which a stud is vertically fixed and hinged to the substrate via the first hinge shaft.

4. The anchor bolt support according to claim 3, characterized in that, A first support protruding from the first surface of the substrate is provided on the substrate, and a first hinge shaft is hinged to the first support.

5. The anchor bolt support according to claim 4, characterized in that, The first support has a first inclined surface extending at an angle relative to the substrate and toward the pressure-bearing portion. The end of the first inclined surface away from the substrate extends at an angle away from the pressure-bearing portion. The first hinge groove of the first support has an inner surface with a superior arc shape. The first hinge groove is formed by the recess of the first inclined surface. The first hinge shaft includes a first hinge portion extending along its axial direction. The outer peripheral surface of the first hinge portion includes a first arc surface with a superior arc shape and a first plane closing both ends of the first arc surface. The first arc surface protrudes in a direction away from the stud. Alternatively, the outer peripheral surface of the first hinge portion is cylindrical. The first hinge portion is hinged in the first hinge groove.

6. The anchor bolt support according to claim 3, characterized in that, The stud is connected to the first hinge shaft by welding, screwing, or plugging.

7. The anchor bolt support according to claim 2, characterized in that, A locking nut is screwed onto the stud. The locking nut is located on the side of the adjusting rod away from the swinging part. Tightening the locking nut will cause it to press tightly against the end face of the adjusting rod away from the swinging part, thus locking the relative position of the adjusting rod and the stud.

8. The anchor bolt support according to claim 1, characterized in that, A positioning element is provided on a second surface of the substrate that is opposite to the first surface. The positioning element is used to connect to the waler. The positioning component can be a hook, bolt, or straight rod. When the positioning component is a hook, there is a corresponding hook part on the waler, and the hook can be hooked onto the hook part. When the positioning component is a bolt, there is a corresponding bolt hole on the waler, and the bolt can be screwed into the bolt hole. When the positioning component is a straight rod, there is a corresponding straight hole on the waler, and the straight rod can be inserted into the straight hole.

9. The anchor bolt support according to claim 1, characterized in that, The pressure-bearing part includes a pressure plate, and the two opposite ends of the pressure plate have a second hinge shaft and a second hinge end, respectively. The second hinge shaft is hinged to the base plate, and the second hinge end is hinged to the swing member.

10. The anchor bolt support according to claim 9, characterized in that, A second support protruding from the first surface of the substrate is provided on the substrate, and a second hinge shaft is hinged to the second support. The second support has a second inclined surface that extends obliquely relative to the substrate and toward the telescopic portion. The end of the second inclined surface away from the substrate extends obliquely away from the telescopic portion. The second hinge groove of the second support has an inner surface with a superior arc shape. The first hinge groove is formed by the first inclined surface. The second hinge shaft has a second hinge portion that extends along its axial direction. The second hinge portion has a second arc surface with a superior arc shape, and the second arc surface protrudes in a direction away from the second hinge end. Alternatively, the outer peripheral surface of the second hinge portion is cylindrical. The second hinge portion is hinged in the second hinge groove.

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