A laser detection device for preventing anchor bolts from deviating during construction

Abstract

The present invention relates to the field of anchor bolt detection technology, and proposes a laser detection device for preventing the displacement of anchor bolts during construction, comprising a base, a cross bar, a rack, a slide and a laser emitter, wherein the slide comprises a box body, a gear, a screw and a limiting mechanism, wherein the gear is rotatably arranged on the box body and meshes with the rack; the limiting mechanism is used to control the gear to rotate in only one direction; the laser emitter is fixedly arranged on the box body and is used to emit a laser for detecting the position of the anchor bolt. The present invention sets a rack, a gear and a limiting mechanism, and utilizes their cooperation, so that when the laser emitter slides in the opposite direction at the installation position, the laser emitter can be fixed to the cross bar, so that the laser emitter will not be displaced relative to the cross bar when the screw is turned, thereby improving the accuracy of the installation position of the laser emitter on the cross bar and the accuracy of the laser detection device.

Description

Technical Field

[0001] The invention relates to the technical field of anchor bolt detection, and in particular to a laser detection device for preventing anchor bolts from being displaced during construction. Background Art

[0002] Anchor bolts are widely used in offshore wind power and other engineering structures. Their close combination with concrete can enhance the overall stability and safety of the engineering structure. During the installation of anchor bolts, detection devices are required to detect them to avoid deviation during construction.

[0003] The invention patent with patent publication number CN106555407A discloses an anchor bolt alignment device, including a horizontal X-axis cross bar and a horizontal Y-axis cross bar arranged vertically and crosswise in the middle, and a support rod vertically arranged at the intersection of the X-axis cross bar and the Y-axis cross bar; an X-axis vertical plane laser emitter is arranged on the X-axis cross bar, and a Y-axis vertical plane laser emitter is arranged on the Y-axis cross bar; the structure of the X-axis vertical plane laser emitter and the Y-axis vertical plane laser emitter includes a cylindrical shell, an upper cover and a transparent column connected between the shell and the upper cover, a conical groove is opened on the transparent column, a laser beam emitter is arranged in the shell, the beam laser emitted by the laser beam emitter is facing the tip of the conical groove, and a reflective layer is coated on the inner wall of the conical groove.

[0004] In the above technical scheme, in order to avoid the displacement of the anchor bolts during construction and to align the anchor bolts, a cross bar and multiple laser emitters are set, so that the lasers emitted by the multiple laser emitters are in a grid shape, and each intersection in the grid is the installation position of the anchor bolt. However, when detecting the anchor bolts of different engineering structures, it is necessary to adaptively adjust the position of the laser emitter, and the laser emitter and the cross bar are usually fixed with bolts. When the laser emitter is moved to the appropriate position of the cross bar, tightening the bolts will cause the laser emitter to slide slightly on the cross bar, thereby affecting the accuracy of the detection results of the anchor bolt detection device. Summary of the invention

[0005] In view of this, the present invention proposes a laser detection device for preventing the displacement of anchor bolts during construction, which can improve the accuracy of the installation position of the laser transmitter on the cross bar and ensure the accuracy of the laser detection device.

[0006] The technical solution of the present invention is implemented as follows: The present invention provides a laser detection device for preventing the displacement of anchor bolts during construction, comprising a base, a crossbar, a rack, a slide seat and a laser transmitter, wherein:

[0007] The cross bar is fixedly arranged on the base;

[0008] The rack is fixedly arranged on the peripheral side of the cross bar;

[0009] The slide seat comprises a box body, a gear, a screw and a limit mechanism, wherein the box body is slidably arranged on the cross bar; the gear is rotatably arranged on the box body and meshes with the rack; the screw is connected to the box body through threaded fitting and is fixed against the cross bar; the limit mechanism is used to control the gear to rotate only in one direction;

[0010] The laser emitter is fixedly arranged on the box body and is used for emitting laser for detecting the position of the anchor bolt.

[0011] On the basis of the above technical solution, preferably, the gear includes a center disk and a plurality of convex teeth, and the limiting mechanism includes a fixed seat and a plurality of abutting rods, wherein:

[0012] The center disk is rotatably arranged on the box body, the protruding teeth are fixedly arranged on the peripheral side of the center disk, and a plurality of the protruding teeth are arranged in a circular array around the center line of the center disk;

[0013] The fixing seat is detachably fixed to the box body, one end of the supporting rod is fixedly arranged on the fixing seat, and the other end is supported by the protruding teeth, and a plurality of the supporting rods and a plurality of the protruding teeth are supported on the same side of the rotation direction of the center disk to prevent the box body from sliding in a direction away from the base.

[0014] More preferably, the limiting mechanism further includes a sliding rod and a first spring, wherein:

[0015] The sliding rod is fixedly arranged on a side of the box body away from the base, and the fixing seat is slidably arranged on the sliding rod;

[0016] The first spring is fixedly arranged on the sliding rod, and one end of the first spring abuts against a side of the fixing seat away from the base.

[0017] On the basis of the above technical solution, preferably, a slide groove is opened on the circumferential side of the cross bar, the rack is fixedly arranged in the slide groove, and the thickness of the gear is equal to the length of the slide groove along the thickness direction of the gear.

[0018] More preferably, the base includes a support frame and a limit block, wherein:

[0019] The support frame is provided with a fixing hole, and the cross bar is slidably arranged in the fixing hole;

[0020] The limiting block is fixedly arranged in the fixing hole;

[0021] There are two slide grooves, which respectively penetrate the two ends of the cross bar, the center lines of the two slide grooves coincide with each other, and the two slide grooves are not connected to each other, and the limit block is slidably arranged in one of the slide grooves;

[0022] The slide seat and the laser emitter are both provided in plurality, and the two correspond to each other one by one, and a plurality of the slide seats are provided in each slide groove.

[0023] More preferably, a connecting groove and a self-checking groove are provided on the peripheral side of the cross bar, the self-checking groove, the connecting groove and one of the slide grooves are connected in sequence, and the limit block is selectively slidably arranged in the self-checking groove, the connecting groove and the slide groove, wherein,

[0024] When the limit block is slidably disposed in the slide groove, the laser emitted by the laser emitter is parallel to the horizontal plane;

[0025] When the limit block is slidably disposed in the self-inspection groove, the laser emitted by the laser emitter is perpendicular to the horizontal plane.

[0026] On the basis of the above technical solution, preferably, the base includes a support frame, a bottom plate and a height adjustment mechanism, wherein:

[0027] The cross bar is fixedly arranged on the support frame;

[0028] The height adjustment mechanism is arranged between the base plate and the support frame. At least three height adjustment mechanisms are arranged. The height of the height adjustment mechanism is adjustable, and the plurality of height adjustment mechanisms are arranged in a circular array along the center line of the support frame.

[0029] More preferably, the height adjustment mechanism comprises a column, a second spring and at least one set of adjustment rings, wherein:

[0030] The support frame is provided with a movable hole, and the upright column is fixedly arranged on the bottom plate and passes through the movable hole;

[0031] The second spring is fixedly arranged on the column, and one end of the second spring abuts against a side of the support frame away from the bottom plate;

[0032] Each group of adjustment rings is provided with two, and the two adjustment rings located at both ends of the multiple adjustment rings are respectively abutted against the support frame and the bottom plate, and a plurality of height adjustment planes parallel to the horizontal plane are provided on one side of the adjustment ring close to another adjustment ring in the same group, and the plurality of height adjustment planes on the same group of adjustment rings are arranged in a spiral step shape; the multiple adjustment rings are coaxial and abutted, and the two adjustment rings in the same group are arranged opposite to each other.

[0033] More preferably, the adjustment rings are provided in a plurality of groups, and the distances between two adjacent height adjustment planes in different groups of the adjustment rings are different.

[0034] On the basis of the above technical solution, preferably, it also includes a detection box, which is a rectangular parallelepiped structure, and target lines are arranged on its four peripheral sides, and a fixing groove for inserting the anchor bolt is opened on the bottom side of the detection box.

[0035] The laser detection device for preventing the displacement of anchor bolts during construction of the present invention has the following beneficial effects compared with the prior art:

[0036] (1) By setting a rack, a gear and a limit mechanism, when the laser emitter slides in the opposite direction at the installation position, the laser emitter can be fixed to the cross bar, so that when the screw is turned, the laser emitter will not be displaced relative to the cross bar, thereby improving the accuracy of the installation position of the laser emitter on the cross bar and the accuracy of the laser detection device;

[0037] (2) By providing a plurality of abutting rods, different convex teeth can be abutted respectively, thereby improving the anti-reverse effect of the limit mechanism;

[0038] (3) By setting an adjustment ring and setting multiple height adjustment planes on the adjustment ring, the horizontal state of the cross bar can be adjusted. By making the height adjustment plane parallel to the horizontal direction, the height adjustment of the height adjustment mechanism can be adjusted in a step-by-step manner to ensure the adjustment accuracy of the height adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A three-dimensional diagram of a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0041] Figure 2 A cross-sectional view of a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0042] Figure 3 It is a cross-sectional view of a state in which a limiting mechanism of a laser detection device for preventing the displacement of anchor bolts during construction of the present invention is separated from a box body;

[0043] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0044] Figure 5 for Figure 2 The enlarged view of point B in the middle;

[0045] Figure 6 A three-dimensional diagram of a slide seat in a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0046] Figure 7 An exploded view of a crossbar in a laser detection device for preventing anchor bolts from being misaligned during construction according to the present invention;

[0047] Figure 8 It is a partial front view of a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0048] Fig. 9 It is a cross-sectional view of a height adjustment mechanism in a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0049] Fig.10 A stereogram of different groups of adjustment rings in a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0050] Fig.11 It is a front view of two adjustment rings in the same group in different adjustment states in a laser detection device for preventing the displacement of anchor bolts during construction according to the present invention;

[0051] Fig.12 A three-dimensional diagram of a detection box in a laser detection device for preventing anchor bolts from being misaligned during construction according to the present invention;

[0052] Fig.13 The present invention is a schematic diagram of the use of a laser detection device for preventing the displacement of anchor bolts during construction.

[0053] Among them: 1. base; 11. support frame; 12. bottom plate; 13. height adjustment mechanism; 131. column; 132. second spring; 133. adjustment ring; 14. limit block; 101. fixed hole; 102. movable hole; 103. height adjustment plane; 2. cross bar; 201. slide groove; 202. connecting groove; 203. self-inspection groove; 3. rack; 4. slide seat; 41. box body; 42. gear; 421. center disk; 422. convex tooth; 43. screw; 44. limit mechanism; 441. fixed seat; 442. holding rod; 443. sliding rod; 444. first spring; 5. laser transmitter; 6. detection box; 601. target line; 602. fixed groove; 7. anchor bolt. DETAILED DESCRIPTION

[0054] The following will be combined with the specific implementation of the present invention to clearly and completely describe the technical solution in the present invention. Obviously, the described implementation is only a part of the implementation of the present invention, not all of the implementation. Based on the implementation of the present invention, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] like Figure 1-13 As shown, a laser detection device for preventing the displacement of anchor bolts during construction of the present invention comprises a base 1, a cross bar 2, a rack 3, a slide seat 4, a laser emitter 5 and a detection box 6.

[0056] The base 1 is used to carry other components and is fixedly connected to the detection position.

[0057] The cross bar 2 is used to carry the slide 4. The cross bar 2 is fixedly arranged on the base 1. When the base 1 is fixed at the detection position, the cross bar 2 is arranged along the horizontal direction.

[0058] The rack 3 is used to limit the movement of the slide 4 , and the rack 3 is fixedly arranged on the peripheral side of the cross bar 2 .

[0059] The slide 4 is used to carry the laser emitter 5. The slide 4 includes a box body 41, a gear 42, a screw 43 and a limit mechanism 44. The box body 41 is slidably set on the cross bar 2; the gear 42 is rotatably set on the box body 41 and meshes with the rack 3. The meshing of the gear 42 and the rack 3 maintains the sliding stability of the slide 4; the screw 43 is connected to the box body 41 through threaded cooperation and is abutted and fixed with the cross bar 2. When the screw 43 is loosened, it is separated from the cross bar 2, so that the slide 4 can slide relative to the cross bar 2 to adjust the position of the slide 4, and when the screw 43 is tightened, it is abutted and fixed with the cross bar 2, so that the slide 4 is fixed on the cross bar 2 to fix the slide 4 at the detection position; the limit mechanism 44 is used to control the gear 42 to rotate only in one direction , but cannot rotate in the direction opposite to this direction, that is, to prevent the gear 42 from reversing, to prevent the slide 4 from sliding in the opposite direction, and to achieve an anti-reverse effect; since a certain force will be applied to the slide 4 during the process of twisting the screw 43, it is easy for the box body 41 to slide slightly relative to the cross bar 2, affecting the accuracy of the laser detection device. The laser detection device is provided with a limit mechanism 44. When the box body 41 slides to the installation position on the cross bar 2, a force opposite to the sliding direction is applied to the box body 41. The anti-reverse effect of the limit mechanism 44 can be used to prevent the box body 41 from sliding relative to the cross bar 2. During this force application process, tightening the screw 43 can ensure that the position of the box body 41 relative to the cross bar 2 remains unchanged, thereby improving the accuracy of the installation position of the slide 4 and the accuracy of the laser detection device.

[0060] The laser emitter 5 is used to emit laser for detecting the position of the anchor bolt 7 , and the laser emitter 5 is fixedly disposed on the box body 41 .

[0061] like Figure 5 As shown, the gear 42 includes a center disk 421 and a plurality of protruding teeth 422. The center disk 421 is rotatably disposed on the box body 41, and the protruding teeth 422 are fixedly disposed on the circumference of the center disk 421. The plurality of protruding teeth 422 are arranged in a circular array around the center line of the center disk 421, as shown in FIG. Figure 2 As shown, the limiting mechanism 44 includes a fixed seat 441 and a plurality of abutting rods 442. The fixed seat 441 is detachably fixed to the box body 41. One end of the abutting rod 442 is fixedly arranged on the fixed seat 441, and the other end abuts against the convex tooth 422. The abutment between the abutting rod 442 and the convex tooth 422 is used to prevent the gear 42 from reversing. Figure 5 As shown, multiple abutting rods 442 abut against multiple protruding teeth 422 on the same side of the rotation direction of the center disk 421, that is, different abutting rods 442 abut against different parts of different protruding teeth 422, which can improve the anti-reversal effect and anti-reversal stability of the limiting mechanism 44.

[0062] like Figure 1 and Figure 2 As shown, the abutment between the abutment rod 442 and the convex tooth 422 prevents the box body 41 from sliding in the direction away from the base 1. When the cross bar 2 is installed on the base 1, the slide 4 can be easily slid into the installation position on the cross bar 2 and prevent the slide 4 from being separated from the cross bar 2 during use. When the inspection is completed, the fixed seat 441 and the box body 41 are disassembled to achieve the separation of the slide 4 and the cross bar 2.

[0063] like Figure 2-Figure 5 As shown, the limiting mechanism 44 also includes a sliding rod 443 and a first spring 444. The sliding rod 443 is fixedly arranged on the side of the box body 41 away from the base 1, and the fixed seat 441 is slidably arranged on the sliding rod 443; the first spring 444 is fixedly arranged on the sliding rod 443, and one end thereof abuts against the side of the fixed seat 441 away from the base 1, as shown in FIG. Figure 2 As shown, in the natural state, the first spring 444 can be used to support the fixing seat 441 to always support the box body 41, so that the supporting rod 442 can always support the convex tooth 422, as shown in FIG. Figure 3 As shown, when the fixed seat 441 is slid to the left, the supporting rod 442 will be separated from the protruding tooth 422, so that the time limit mechanism 44 loses the anti-reverse effect on the gear 42. At the same time, sliding the fixed seat 441 to the left will also apply a leftward force to the box body 41, so as to facilitate the entire slide 4 to move out of the cross bar 2 (the figure shows the slide 4 on the left side of the base 1, so a leftward force is applied to it, and the same applies to the slide 4 on the right side of the base 1).

[0064] like Figure 2 As shown, a slide groove 201 is opened on the circumferential side of the cross bar 2, the rack 3 is fixedly arranged in the slide groove 201, and the thickness of the gear 42 is equal to the length of the slide groove 201 along the thickness direction of the gear 42, thereby preventing the slide seat 4 from rotating along the circumference of the cross bar 2 and ensuring that the emission direction of the laser is horizontal.

[0065] like Figure 1 and Figure 7 As shown, the base 1 includes a support frame 11 and a limit block 14. The support frame 11 is provided with a fixing hole 101, and the cross bar 2 is slidably set in the fixing hole 101; the limit block 14 is fixedly set in the fixing hole 101; there are two slide grooves 201, which respectively penetrate the two ends of the cross bar 2, the center lines of the two slide grooves 201 coincide with each other, and the two slide grooves 201 are not connected to each other, the limit block 14 is slidably set in one of the slide grooves 201, and selectively abuts against the end of the slide groove 201 to prevent the cross bar 2 from rotating relative to the base 1 during use; there are multiple slide seats 4 and laser emitters 5, and the two correspond one to one, and multiple slide seats 4 are set in each slide groove 201.

[0066] like Fig.13 As shown, the present laser detection device needs to be provided with two, the arrangement directions of the two cross bars 2 are parallel to the horizontal plane, and the two cross bars 2 are perpendicular to each other. However, when the present laser detection device is installed, since a plurality of laser emitters 5 are installed on the present laser detection device, there will be a problem that the lasers emitted by the plurality of laser emitters 5 are not located on the same plane or the lasers emitted by the laser emitters 5 on the two cross bars 2 are not perpendicular to each other.

[0067] like Figure 7 As shown, a connecting groove 202 and a self-checking groove 203 are provided on the circumferential side of the crossbar 2, and the self-checking groove 203, the connecting groove 202 and one of the slide grooves 201 are connected in sequence, and the limit block 14 is selectively slidably arranged in the self-checking groove 203, the connecting groove 202 and the slide groove 201, wherein, as Figure 1 As shown, when the limit block 14 is slidably disposed in the slide groove 201, the laser emitted by the laser emitter 5 is parallel to the horizontal plane; Figure 8 As shown, when the limit block 14 is slidably set in the self-inspection groove 203, the laser emitted by the laser emitter 5 is perpendicular to the horizontal plane. Before deploying the laser detection device, two mutually perpendicular layout lines are drawn on the ground at the detection position. When multiple laser emitters 5 emit lasers in a vertically downward manner, the lasers emitted by two laser detection devices are respectively coincident with the two layout lines, thereby ensuring that the lasers emitted by the laser emitters 5 on the two cross bars 2 are perpendicular to each other.

[0068] like Figure 8As shown, the base 1 includes a support frame 11, a bottom plate 12 and a height adjusting mechanism 13, wherein the cross bar 2 is fixedly arranged on the support frame 11; the height adjusting mechanism 13 is arranged between the bottom plate 12 and the support frame 11, at least three height adjusting mechanisms 13 are arranged, the height of the height adjusting mechanism 13 is adjustable, and a plurality of height adjusting mechanisms 13 are arranged in a circular array along the center line of the support frame 11. When the bottom plate 12 is fixed to the detection position, by adjusting the plurality of height adjusting mechanisms 13, the cross bar 2 can be placed on the same plane, that is, the lasers emitted by the plurality of laser emitters 5 can be placed on the same plane.

[0069] like Fig. 9 As shown, the height adjustment mechanism 13 includes a column 131, a second spring 132 and at least one group of adjustment rings 133, wherein a movable hole 102 is opened on the support frame 11, the column 131 is fixedly arranged on the bottom plate 12 and passes through the movable hole 102, and the inner diameter of the movable hole 102 is larger than the outer diameter of the column 131; the second spring 132 is fixedly arranged on the column 131, and one end thereof abuts against the side of the support frame 11 away from the bottom plate 12; each group of adjustment rings 133 is provided with two, and the two adjustment rings 133 located at the two ends of the plurality of adjustment rings 133 abut against the support frame 11 and the bottom plate 12 respectively, and a plurality of height adjustment planes 103 parallel to the horizontal plane are provided on the side of the adjustment ring 133 close to another adjustment ring 133 of the same group, as shown in FIG. Fig.10 As shown, the multiple height adjustment planes 103 on the same group of adjustment rings 133 are arranged in a spiral step shape; the multiple adjustment rings 133 are coaxially and abuttingly arranged, and the two adjustment rings 133 of the same group are arranged oppositely, such as Fig.11 As shown, by rotating the adjusting ring 133, the height of each group of adjusting rings 133 is adjusted by making the height adjustment planes 103 between the two adjusting rings 133 of the same group abut against each other different, and then with the support of the second spring 132, the distance between the support frame 11 and the base plate 12 is adjusted to adjust the horizontality of the support frame 11 and the cross bar 2.

[0070] like Fig.11 As shown, since the height adjustment plane 103 is parallel to the horizontal plane, when the adjustment ring 133 is rotated, the height change of the height adjustment mechanism 13 is not continuous, but a stage-by-stage transient change. Therefore, the stability of the height difference of the height adjustment mechanism 13 can be guaranteed, and the adjustment ring 133 can be prevented from being slightly deflected by external vibrations and the like, thereby affecting the accuracy of the laser emission angle.

[0071] like Fig. 9 and Fig.10As shown, there are multiple groups of adjustment rings 133, and the distances between two adjacent height adjustment planes 103 in different groups of adjustment rings 133 are different. A group of adjustment rings 133 with a large distance between two adjacent height adjustment planes 103 drives a larger change in the height of the height adjustment mechanism 13 when rotating, and thus can be used as a choice for quick adjustment. A group of adjustment rings 133 with a small distance between two adjacent height adjustment planes 103 drives a smaller change in the height of the height adjustment mechanism 13 when rotating, and thus can be used for fine adjustment of the height adjustment mechanism 13, thereby ensuring both the accuracy of the height adjustment mechanism 13 and the adjustment efficiency of the height adjustment mechanism 13.

[0072] The detection box 6 is used to provide a reference for the laser. The detection box 6 is a rectangular structure. A fixing groove 602 for inserting the anchor bolt 7 is provided on the bottom side of the detection box 6, which is used to fix the detection box 6 to the upper end of the anchor bolt 7. Target lines 601 are provided on the four sides of the detection box 6. Laser is irradiated to different scale positions on the target line 601 to determine whether the anchor bolt 7 is deflected.

[0073] The method for using the laser detection device for preventing the deviation of the anchor bolt during construction of the present invention is as follows:

[0074] like Fig.13 As shown, first, a detection box 6 is set on each anchor bolt 7, and the corresponding sides of the multiple detection boxes 6 are parallel. Then, two laser detection devices are taken out, and the corresponding number of slides 4 and laser emitters 5 are installed on each cross bar 2 according to the number of anchor bolts 7. The position of the slide 4 on the corresponding cross bar 2 is adjusted according to the position of the anchor bolt 7. Then, the two laser detection devices are installed on the sides of the anchor bolt 7 in a mutually perpendicular manner, so that the lasers emitted by the multiple laser emitters 5 are in a grid shape, and the position of each intersection in the grid is the standard installation position of the anchor bolt 7. Finally, the position of the target line 601 and the laser on each detection box 6 is observed to determine whether the anchor bolt 7 is offset. During the adjustment of the position of the slide 4 and the cross bar 2, when the slide 4 moves to the fixed position of the cross bar 2, the slide 4 is pushed in the direction opposite to its sliding direction, so that the slide 4 is limited by the limiting mechanism 44 and remains motionless, thereby avoiding sliding of the slide 4 when tightening the screw 43, thereby ensuring the accuracy of the detection result of the laser detection device.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser detection device for preventing the displacement of anchor bolts during construction, characterized in that: It comprises a base (1), a crossbar (2), a rack (3), a slide seat (4) and a laser transmitter (5), wherein: The cross bar (2) is fixedly arranged on the base (1); The rack (3) is fixedly arranged on the circumferential side of the cross bar (2); The slide seat (4) comprises a box body (41), a gear (42), a screw rod (43) and a limiting mechanism (44); the box body (41) is slidably arranged on the cross bar (2); the gear (42) is rotatably arranged on the box body (41) and meshes with the rack (3); the screw rod (43) is connected to the box body (41) by threaded engagement and is abutted and fixed to the cross bar (2); the limiting mechanism (44) is used to control the gear (42) to rotate in only one direction; The laser emitter (5) is fixedly arranged on the box body (41) and is used to emit laser light for detecting the position of the anchor bolt (7); The gear (42) comprises a central disk (421) and a plurality of protruding teeth (422); the limiting mechanism (44) comprises a fixing seat (441) and a plurality of abutting rods (442), wherein: The central disk (421) is rotatably arranged on the box body (41), the protruding teeth (422) are fixedly arranged on the circumference of the central disk (421), and a plurality of the protruding teeth (422) are arranged in a circular array around the center line of the central disk (421); The fixing seat (441) is detachably fixed to the box body (41); one end of the abutting rod (442) is fixedly disposed on the fixing seat (441); the other end abuts against the protruding teeth (422); and a plurality of the abutting rods (442) and a plurality of the protruding teeth (422) abut against each other along the same side of the rotation direction of the center disk (421), thereby preventing the box body (41) from sliding in a direction away from the base (1).

2. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 1, characterized in that: The limiting mechanism (44) further comprises a sliding rod (443) and a first spring (444), wherein: The sliding rod (443) is fixedly arranged on a side of the box body (41) away from the base (1), and the fixing seat (441) is slidably arranged on the sliding rod (443); The first spring (444) is fixedly arranged on the sliding rod (443), and one end of the first spring abuts against a side of the fixing seat (441) away from the base (1).

3. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 1, characterized in that: A sliding groove (201) is provided on the circumferential side of the crossbar (2), the rack (3) is fixedly arranged in the sliding groove (201), and the thickness of the gear (42) is equal to the length of the sliding groove (201) along the thickness direction of the gear (42).

4. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 3, characterized in that: The base (1) comprises a support frame (11) and a limit block (14), wherein: The support frame (11) is provided with a fixing hole (101), and the cross bar (2) is slidably arranged in the fixing hole (101); The limiting block (14) is fixedly disposed in the fixing hole (101); Two slide grooves (201) are provided and respectively penetrate through the two ends of the cross bar (2); the center lines of the two slide grooves (201) coincide with each other, and the two slide grooves (201) are not connected to each other; the limit block (14) is slidably provided in one of the slide grooves (201); The slide seats (4) and the laser emitters (5) are both provided in plurality, and the two correspond to each other one by one, and each slide groove (201) is provided with a plurality of the slide seats (4).

5. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 4, characterized in that: A connecting groove (202) and a self-checking groove (203) are provided on the circumferential side of the crossbar (2); the self-checking groove (203), the connecting groove (202) and one of the slide grooves (201) are connected in sequence, and the limit block (14) is selectively slidably arranged in the self-checking groove (203), the connecting groove (202) and the slide groove (201), wherein: When the limit block (14) is slidably disposed in the slide groove (201), the laser emitted by the laser emitter (5) is parallel to the horizontal plane; When the limit block (14) is slidably disposed in the self-inspection groove (203), the laser emitted by the laser emitter (5) is perpendicular to the horizontal plane.

6. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 1, characterized in that: The base (1) comprises a support frame (11), a bottom plate (12) and a height adjustment mechanism (13), wherein: The cross bar (2) is fixedly arranged on the support frame (11); The height adjustment mechanism (13) is arranged between the base plate (12) and the support frame (11), at least three height adjustment mechanisms (13) are arranged, the height of the height adjustment mechanism (13) is adjustable, and the plurality of height adjustment mechanisms (13) are arranged in a circular array along the center line of the support frame (11).

7. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 6, characterized in that: The height adjustment mechanism (13) comprises a column (131), a second spring (132) and at least one set of adjustment rings (133), wherein: The support frame (11) is provided with a movable hole (102), and the upright column (131) is fixedly arranged on the bottom plate (12) and passes through the movable hole (102); The second spring (132) is fixedly arranged on the column (131), and one end of the second spring is in contact with a side of the support frame (11) away from the bottom plate (12); Each group of the adjustment rings (133) is provided with two adjustment rings (133), and the two adjustment rings (133) located at both ends of the plurality of adjustment rings (133) are respectively in contact with the support frame (11) and the bottom plate (12); a plurality of height adjustment planes (103) parallel to the horizontal plane are provided on one side of the adjustment ring (133) close to another adjustment ring (133) in the same group; the plurality of height adjustment planes (103) on the same group of adjustment rings (133) are arranged in a spiral step shape; the plurality of adjustment rings (133) are coaxial and in contact with each other, and the two adjustment rings (133) in the same group are arranged opposite to each other.

8. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 7, characterized in that: The adjustment rings (133) are provided in multiple groups, and the distances between two adjacent height adjustment planes (103) in different groups of the adjustment rings (133) are different.

9. A laser detection device for preventing the displacement of anchor bolts during construction as claimed in claim 1, characterized in that: It also comprises a detection box (6), the detection box (6) being a rectangular parallelepiped structure, and having target lines (601) arranged on its four peripheral sides, and a fixing groove (602) for inserting the anchor bolt (7) being provided on the bottom side of the detection box (6).

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