Tower crane verticality laser detection device

Abstract

The utility model relates to the technical field of tower crane detection, in particular to a tower crane perpendicularity laser detection device which comprises a tower crane assembly, a structural member, a detection member arranged on one side of the structural member, a mounting assembly, an adjusting member arranged on one side of the structural member, a pressing member arranged on one side of the adjusting member and a fixing member arranged in the structural member. According to the utility model, the laser emitter in the tower crane assembly is used for emitting laser to detect the verticality of the tower crane; and meanwhile, the arranged mounting assembly comprises an adjusting part arranged on one side of the structural part, a pressing part arranged on one side of the adjusting part and a fixing part arranged in the structural part and is used for rapidly fixing and mounting the laser transmitter, tools such as a screwdriver are not needed during mounting, mounting is convenient, and the danger of mounting personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane detection, in particular to a laser detection device for the verticality of tower cranes. Background Technique

[0002] In order to improve the safety of tower cranes, after the tower crane is assembled, a verticality detection device is needed to monitor its state in real time. The verticality detection device mainly consists of a laser emission end installed on the surface of the tower crane and a receiving end vertically arranged above the ground. The verticality of the tower crane is detected by the irradiation position of the laser emitted by the laser emission end. Due to the high height of the tower crane, when installing the laser emitter using bolts or other means, installation tools such as bolts are required, which is time-consuming and laborious, thus increasing the danger of installers and making it difficult to quickly fix and install the laser emitter, bringing great inconvenience. Content of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the name of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the name of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] In view of the problems that occur in the above-mentioned laser detection device for the verticality of tower cranes during use, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a laser detection device for the verticality of tower cranes.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: including a tower crane assembly, comprising a structural member and a detection member disposed on one side of the structural member;

[0007] An installation assembly, comprising an adjusting member disposed on one side of the structural member, a pressing member disposed on one side of the adjusting member, and a fixing member disposed inside the structural member;

[0008] The adjusting member includes a rotating ring rotatably disposed inside the structural member and an arc-shaped convex block disposed on the outer surface of the rotating ring;

[0009] The pressing member includes an installation frame disposed outside the structural member and a pressing block rotatably disposed inside the installation frame.

[0010] As a preferred scheme of the laser detection device for the verticality of tower cranes of the present utility model, wherein: the structural member includes a tower crane horizontal plate, an installation plate disposed on one side of the tower crane horizontal plate, and an installation frame disposed on one side of the installation plate;

[0011] The detection member includes a laser emitter disposed on one side of the mounting frame, a plug post disposed on one side of the laser emitter, and a fixing plate disposed outside the plug post.

[0012] As a preferred embodiment of the tower crane verticality laser detection device of the present utility model, wherein: the adjusting member includes a rotating ring rotatably disposed on one side of the mounting frame, an arc-shaped convex block disposed on the circumferential side of the rotating ring, and a push rod slidably disposed on one side of the mounting block;

[0013] The push rod contacts the arc-shaped surface of the arc-shaped convex block.

[0014] As a preferred embodiment of the tower crane verticality laser detection device of the present utility model, wherein: the pressing member includes a mounting bracket disposed on one side of the mounting frame, a rotating shaft rotatably disposed on one side of the mounting bracket, and a pressing block disposed outside the rotating shaft, and one side of the pressing block contacts the fixing plate.

[0015] As a preferred embodiment of the tower crane verticality laser detection device of the present utility model, wherein: the pressing member further includes a return spring sleeved outside the push rod and a compression spring disposed on one side of the pressing block;

[0016] Both ends of the return spring are respectively connected to the inner side wall of the mounting frame and the side wall of the rotating ring, and both ends of the compression spring are respectively connected to the side wall of the pressing block and the side wall of the mounting frame.

[0017] As a preferred embodiment of the tower crane verticality laser detection device of the present utility model, wherein: the adjusting member further includes an adjusting block disposed on one side of the rotating ring and a turning handle disposed on one side of the adjusting block;

[0018] One end of the adjusting block extends out of the mounting plate.

[0019] As a preferred embodiment of the tower crane verticality laser detection device of the present utility model, wherein: the fixing member includes an inner cavity opened on one side of the rotating ring, a fixing ring disposed inside the mounting frame, a telescopic frame slidably disposed on one side of the fixing ring, and a plug rod disposed on one side of the telescopic frame, and the fixing ring penetrates through the inner cavity of the side wall of the rotating ring.

[0020] As a preferred embodiment of the tower crane verticality laser detection device of the present utility model, wherein: a slot matching the plug rod is opened on the circumferential side of the plug post, the plug rod extends into the slot and is slidably disposed therein, through holes matching both ends of the telescopic frame are opened on the side walls of the fixing ring and the rotating ring, and both ends of the telescopic frame can extend into the through holes and be slidably disposed therein.

[0021] As a preferred embodiment of the laser detection device for the verticality of the tower crane of the present utility model, wherein: the fixing member further includes a special-shaped top block disposed on one side of the inner cavity, an arc-shaped inclined surface disposed on one side of the special-shaped top block, a horizontal surface disposed on one side of the special-shaped top block, and a vertical surface disposed on one side of the special-shaped top block.

[0022] As a preferred embodiment of the laser detection device for the verticality of the tower crane of the present utility model, wherein: the fixing member further includes a sliding rod disposed on one side of the telescopic frame and a sliding rod disposed on the circumferential side of the fixing ring. The sliding rod is disposed in the inner cavity and passes through the telescopic frame and is slidably disposed therewith;

[0023] The fixing member further includes a tension spring sleeved outside the sliding rod and an anti-disengagement plate disposed on one side of the sliding rod.

[0024] The beneficial effects of the present utility model: The laser emitter in the tower crane assembly of the present utility model is used to emit laser to detect the verticality of the tower crane. At the same time, the installation assembly includes an adjusting member disposed on one side of the structural member, a pressing member disposed on one side of the adjusting member, and a fixing member disposed in the structural member for quickly fixing and installing the laser emitter. When installing, tools such as screwdrivers are not required, and the installation is convenient. When installing the laser emitter by using bolts or the like, installation tools such as bolts are required, which is time-consuming and laborious, thus increasing the danger of the installers and making it difficult to quickly fix and install the laser emitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0026] Figure 1 is a structural schematic diagram of the present utility model.

[0027] Figure 2 is a bottom view of the present utility model.

[0028] Figure 3 is a front view of the present utility model.

[0029] Figure 4 is a cross-sectional view of the installation frame in the present utility model.

[0030] Figure 5 is a cross-sectional view of the rotating ring in the present utility model.

[0031] Figure 6 is Figure 5 the enlarged view of the structure at A in Detailed implementation manners

[0032] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present utility model with reference to the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0035] Thirdly, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples, which should not limit the protection scope of the present utility model herein. In addition, in actual production, the three-dimensional spatial dimensions of length, width and depth should be included.

[0036] Embodiment 1

[0037] Referring to Figures 1 - 3 , there is provided a schematic diagram of the overall structure of a laser detection device for the verticality of a tower crane. A laser detection device for the verticality of a tower crane includes a tower crane assembly, including a structural member 101 and a detection member 102 provided on one side of the structural member 101;

[0038] An installation assembly 200, including an adjusting member 201 provided on one side of the structural member 101, a pressing member 202 provided on one side of the adjusting member 201, and a fixing member 203 provided in the structural member 101. The detection member 102 includes a laser emitter 102a provided on one side of the installation frame 101c, a plug post 102b provided on one side of the laser emitter 102a, and a fixing plate 102c provided on the outer side of the plug post 102b. When installing the laser emitter 102a, insert the plug post 102b into the installation frame 101c. After insertion, the fixing plate 102c contacts one side wall of the installation frame 101c;

[0039] The adjusting member 201 includes a rotating ring 201a rotatably arranged inside the structural member 101 and an arc-shaped convex block 201b arranged on the outer surface of the rotating ring 201a. When the rotating ring 201a rotates, it drives the arc-shaped convex block 201b to rotate, thereby driving the pressing member 202 to press and fix the fixing plate 102c.

[0040] The pressing member 202 includes a mounting bracket 202a arranged outside the structural member 101 and a pressing block 202c rotatably arranged inside the mounting bracket 202a. During installation, the pressing block 202c closely adheres to the fixing plate 102c for pressing and fixing treatment.

[0041] Specifically, the structural member 101 includes a tower crane cross plate 101a arranged on one side of the tower crane, a mounting plate 101b arranged on one side of the tower crane cross plate 101a, and a mounting frame 101c arranged on one side of the mounting plate 101b.

[0042] Operation process: Before installation, insert the plug post 102b into the mounting frame 101c. After insertion, the fixing plate 102c contacts one side wall of the mounting frame 101c. At this time, start the adjusting member 201, drive the pressing member 202 to move through the adjusting member 201, thereby driving the pressing block 202c to rotate and pressing and fixing the fixing plate 102c. At the same time, when the adjusting member 201 rotates, drive the fixing member 203 to clamp and fix the plug post 102b inserted into the interior of the mounting frame 101c, thereby realizing the rapid fixing and installation treatment of the laser emitter 102a. At this time, start the laser emitter 102a, and quickly detect the verticality of the tower crane through the receiving device arranged on the bottom surface.

[0043] Embodiment 2

[0044] Refer to Figures 2 - 5 This embodiment is different from the first embodiment in that the adjusting member 201 includes a rotating ring 201a rotatably arranged on one side of the mounting frame 101c, an arc-shaped convex block 201b arranged on the circumferential side surface of the rotating ring 201a, a top rod 201c slidably arranged on one side of the mounting block, the top rod 201c contacts the arc-shaped surface of the arc-shaped convex block 201b, the adjusting member 201 further includes an adjusting block 202f arranged on one side of the rotating ring 201a and an adjusting rotating handle 202g arranged on one side of the adjusting block 202f. One end of the adjusting block 202f extends out of the mounting plate 101b. By rotating the rotating handle 202g, the adjusting block 202f can be driven to rotate, thereby driving the rotating ring 201a to rotate. When the rotating ring 201a rotates, it drives the arc-shaped convex block 201b to rotate. In the initial state, the top rod 201c contacts the lowest point of the arc-shaped convex block 201b. When the arc-shaped convex block 201b rotates, the top cover slides on the arc-shaped surface of the arc-shaped convex block 201b and is driven by the extrusion of the arc-shaped convex block 201b to drive the top rod 201c to slide outwards.

[0045] Specifically, the pressing member 202 includes a mounting bracket 202a disposed on one side of the mounting frame 101c, a rotating shaft 202b rotatably disposed on one side of the mounting bracket 202a, and a pressing block 202c disposed on the outer side of the rotating shaft 202b. One side of the pressing block 202c contacts the fixing plate 102c. The pressing member 202 further includes a return spring 202d sleeved on the outer side of the ejector rod 201c and a compression spring 202e disposed on one side of the pressing block 202c. When the ejector rod 201c slides, it will squeeze the lower end of the pressing block 202c, driving the pressing block 202c to rotate around the rotating shaft 202b, so that the upper end of the pressing block 202c rotates towards the fixing plate 102c of the laser emitter 102a and finally tightly adheres to the fixing plate 102c, realizing the pressing and fixing of it.

[0046] Both ends of the return spring 202d are respectively connected to the inner side wall of the mounting frame 101c and the side wall of the rotating ring 201a. Both ends of the compression spring 202e are respectively connected to the side wall of the pressing block 202c and the side wall of the mounting frame 101c. The return spring 202d and the compression spring 202e are used to perform a reset driving process on the pressing block 202c, so that the pressing block 202c can be quickly rotated and adjusted after the pressing and fixing of the fixing plate 102c by the pressing block 202c is released.

[0047] The remaining structures are the same as those in Embodiment 1.

[0048] Operation process: When the plug post 102b of the laser emitter 102a is inserted into the mounting frame 101c, at this time the fixing plate 102c closely adheres to one side wall of the mounting frame 101c. Rotating the turning handle 202g can drive the adjusting block 202f to rotate, thereby driving the rotating ring 201a to rotate. When the rotating ring 201a rotates, it drives the arc-shaped convex block 201b to rotate. In the initial state, the ejector rod 201c contacts the lowest point of the arc-shaped convex block 201b. When the arc-shaped convex block 201b rotates, the top cover slides on the arc-shaped surface of the arc-shaped convex block 201b and drives the ejector rod 201c to slide outwards under the extrusion of the arc-shaped convex block 201b. When the ejector rod 201c slides, it will squeeze the lower end of the pressing block 202c, driving the pressing block 202c to rotate around the rotating shaft 202b, so that the upper end of the pressing block 202c rotates towards the fixing plate 102c of the laser emitter 102a and finally tightly adheres to the fixing plate 102c, realizing the pressing and fixing of it.

[0049] When it is necessary to release the pressing and fixing of the fixing plate 102c, continue to rotate the rotating ring 201a. When it rotates until the ejector rod 201c passes over the arc-shaped convex block 201b, at this time the ejector rod 201c loses the extrusion force of the arc-shaped convex block 201b and is driven by the resilience of the return spring 202d and the compression spring 202e to perform a reset sliding, thereby driving the pressing block 202c to rotate in the reverse direction and releasing the pressing and fixing of the fixing plate 102c.

[0050] Embodiment 3

[0051] Reference Figures 1 - 6 , this embodiment is different from the above embodiments in that: the fixing member 203 includes an inner cavity 203a opened on one side of the rotating ring 201a, a fixing ring 203b arranged on the inner side of the mounting frame 101c, a telescopic frame 203c slidably arranged on one side of the fixing ring 203b, and a plug rod 203d arranged on one side of the telescopic frame 203c. The fixing ring 203b penetrates through the inner cavity 203a on the side wall of the rotating ring 201a, and the fixing ring 203b is arranged on one inner wall of the mounting frame 101c. During the rotation of the rotating ring 201a, the fixing ring 203b will not rotate therewith.

[0052] Specifically, a slot matching the plug rod 203d is opened on the circumferential side of the plug post 102b. The plug rod 203d extends into the slot and is slidably arranged therewith. The plug rod 203d inserted into the slot of the plug post 102b can realize the clamping and fixing of the plug post 102b, so as to realize the fixed installation of the laser emitter 102a. Through holes 203e matching the two ends of the telescopic frame 203c are opened on both the fixing ring 203b and the side wall of the rotating ring 201a. The two ends of the telescopic frame 203c can extend into the through holes 203e and are slidably arranged therewith, so that the telescopic frame 203c can slide along the direction of the plug rod 203d.

[0053] Furthermore, the fixing member 203 further includes a special-shaped top block 203f arranged on one side of the inner cavity 203a, an arc-shaped inclined surface 203g arranged on one side of the special-shaped top block 203f, a horizontal plane 203h arranged on one side of the special-shaped top block 203f, and a vertical plane 203i arranged on one side of the special-shaped top block 203f. The fixing member 203 further includes a sliding rod 203j arranged on one side of the telescopic frame 203c. The sliding rod 203j is fixedly arranged on the side wall of the telescopic frame 203c, and a sliding rod 203k arranged on the circumferential side of the fixing ring 203b. The sliding rod 203k is arranged in the inner cavity 203a and the sliding rod 203k penetrates through the telescopic frame 203c and is slidably arranged therewith. In the initial state, one end of the sliding rod 203j contacts the arc-shaped inclined surface 203g at the lowest point of the special-shaped top block 203f. When the rotating ring 201a rotates, during the process that the sliding rod 203j slides from the arc-shaped inclined surface 203g to the horizontal plane 203h, under the extrusion of the special-shaped top block 203f, the telescopic frame 203c is driven to slide towards the center of the fixing ring 203b, thereby driving the plug rod 203d to slide inwards. When the sliding rod 203j slides to the horizontal plane 203h on the side wall of the special-shaped top block 203f, the plug rod 203d slides inwards to the end position. At this time, the plug rod 203d has been inserted into the deepest part of the plug post 102b, realizing the clamping and fixing of the plug post 102b. At this time, when the rotating ring 201a continues to rotate, the special-shaped top block 203f will no longer generate an extrusion force on the sliding rod 203j.

[0054] Preferably, the fixing member 203 further includes a tension spring 203l sleeved outside the sliding rod 203k and an anti - detachment plate 203m arranged on one side of the sliding rod 203k. The two ends of the tension spring 203l are respectively connected to the side wall of the fixed ring 203b and the side wall of the telescopic frame 203c. The tension spring 203l is used to drive the telescopic frame 203c to reset. When the rotating ring 201a continues to rotate, when the sliding rod 203j slides to the vertical plane 203i of the special - shaped top block 203f, at this time, the sliding rod 203j loses the extrusion force of the special - shaped top block 203f, and the telescopic frame 203c starts to slide in the reverse direction under the reset force of the tension spring 203l, driving the plug rod 203d to slide to the slot of the plug post 102b, releasing the stuck - fixing of the plug post 102b. At the same time, the arranged anti - detachment plate 203m can be used to reduce the possibility of the telescopic frame 203c falling off.

[0055] The remaining structures are the same as those in Embodiment 2.

[0056] Operation process: When the rotating ring 201a drives the pressing block 202c to press and fix the fixing plate 102c, the sliding rod 203j inside the rotating ring 201a also slides from the arc - shaped inclined plane 203g towards the horizontal plane 203h. During the sliding process, it is extruded by the special - shaped top block 203f, driving the telescopic frame 203c to slide towards the center of the fixed ring 203b, thereby driving the plug rod 203d to slide inwards. When the sliding rod 203j slides to the horizontal plane 203h on the side wall of the special - shaped top block 203f, the plug rod 203d slides inwards to the end position. At this time, the plug rod 203d has been inserted into the deepest part of the plug post 102b, realizing the stuck - fixing of the plug post 102b. At this time, the clamping block also completes the pressing and fixing of the fixing plate 102c. When the rotating ring 201a continues to rotate at this time, the special - shaped top block 203f will no longer generate an extrusion force on the sliding rod 203j. Through the cooperation of pressing and the clamping of the plug rod 203d inserted into the plug post 102b, the quick fixing and installation of the laser emitter 102a are realized.

[0057] When quick disassembly is required, continue to rotate the rotating ring 201a in the same direction. When the ejector rod 201c rotates past the arc-shaped bump 201b, at this time, the ejector rod 201c loses the extrusion force of the arc-shaped bump 201b, and is driven by the resilience of the return spring 202d and the compression spring 202e to drive the ejector rod 201c to perform a reset slide, thereby driving the pressing block 202c to rotate in the reverse direction, releasing the pressing and fixing of the fixing plate 102c. At the same time, when the sliding rod 203j slides to the vertical surface 203i of the special-shaped top block 203f, at this time, the sliding rod 203j loses the extrusion force of the special-shaped top block 203f, and the telescopic frame 203c starts to slide in the reverse direction under the reset force of the tension spring 203l, driving the insertion rod 203d to slide to the slot of the insertion column 102b, releasing the stuck fixing of the insertion column 102b. At this time, the laser emitter 102a can be directly pulled out to achieve its quick disassembly.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A laser detection device for the verticality of a tower crane, characterized in that: It includes a tower crane assembly, which includes a structural member (101) and a detection member (102) arranged on one side of the structural member (101); An installation assembly (200), which includes an adjusting member (201) arranged on one side of the structural member (101), a pressing member (202) arranged on one side of the adjusting member (201), and a fixing member (203) arranged inside the structural member (101); The adjusting member (201) includes a rotating ring (201a) rotatably arranged inside the structural member (101) and an arc-shaped convex block (201b) arranged on the outer surface of the rotating ring (201a); The pressing member (202) includes a mounting bracket (202a) arranged outside the structural member (101) and a pressing block (202c) rotatably arranged inside the mounting bracket (202a).

2. The tower crane verticality laser detection device according to claim 1, characterized in that: The structural member (101) includes a tower crane cross plate (101a), a mounting plate (101b) arranged on one side of the tower crane cross plate (101a), and a mounting frame (101c) arranged on one side of the mounting plate (101b); The detection member (102) includes a laser emitter (102a) arranged on one side of the mounting frame (101c), a plug post (102b) arranged on one side of the laser emitter (102a), and a fixing plate (102c) arranged outside the plug post (102b).

3. The tower crane verticality laser detection device according to claim 2, characterized in that: The adjusting member (201) includes a rotating ring (201a) rotatably arranged on one side of the mounting frame (101c), an arc-shaped convex block (201b) arranged on the circumferential side of the rotating ring (201a), and a top rod (201c) slidably arranged on one side of the mounting block; The top rod (201c) contacts the arc-shaped surface of the arc-shaped convex block (201b).

4. The tower crane verticality laser detection device according to claim 2 or 3, characterized in that: The pressing member (202) includes a mounting bracket (202a) arranged on one side of the mounting frame (101c), a rotating shaft (202b) rotatably arranged on one side of the mounting bracket (202a), and a pressing block (202c) arranged outside the rotating shaft (202b), and one side of the pressing block (202c) contacts the fixing plate (102c).

5. The tower crane verticality laser detection device according to claim 4, characterized in that: The pressing member (202) further includes a return spring (202d) sleeved outside the top rod (201c) and a compression spring (202e) arranged on one side of the pressing block (202c); Both ends of the return spring (202d) are respectively connected to the inner side wall of the mounting frame (101c) and the side wall of the rotating ring (201a), and both ends of the compression spring (202e) are respectively connected to the side wall of the pressing block (202c) and the side wall of the mounting frame (101c).

6. The tower crane verticality laser detection device according to claim 5, characterized in that: The adjusting member (201) further includes an adjusting block (202f) arranged on one side of the rotating ring (201a) and an adjusting turning handle (202g) arranged on one side of the adjusting block (202f); One end of the adjusting block (202f) extends out of the mounting plate (101b).

7. The tower crane verticality laser detection device according to claim 6, characterized in that: The fixing member (203) includes an inner cavity (203a) opened on one side of the rotating ring (201a), a fixing ring (203b) arranged inside the mounting frame (101c), a telescopic frame (203c) slidably arranged on one side of the fixing ring (203b), and a plug rod (203d) arranged on one side of the telescopic frame (203c). The fixing ring (203b) penetrates through the inner cavity (203a) on the side wall of the rotating ring (201a).

8. The tower crane verticality laser detection device according to claim 7, wherein: A slot matching the plug rod (203d) is opened on the circumferential side surface of the plug post (102b). The plug rod (203d) extends into the slot and is slidably arranged therein. Through holes (203e) matching the two ends of the telescopic frame (203c) are opened on the side wall of the fixing ring (203b) and the rotating ring (201a). The two ends of the telescopic frame (203c) can extend into the through holes (203e) and are slidably arranged therein.

9. The tower crane verticality laser detection device according to claim 8, characterized in that: The fixing member (203) further includes a special-shaped top block (203f) arranged on one side of the inner cavity (203a), an arc-shaped inclined surface (203g) arranged on one side of the special-shaped top block (203f), a horizontal surface (203h) arranged on one side of the special-shaped top block (203f), and a vertical surface (203i) arranged on one side of the special-shaped top block (203f).

10. The tower crane verticality laser detection device according to claim 9, wherein: The fixing member (203) further includes a sliding rod (203j) arranged on one side of the telescopic frame (203c), and a sliding rod (203k) arranged on the circumferential side surface of the fixing ring (203b). The sliding rod (203k) is arranged in the inner cavity (203a) and penetrates through the telescopic frame (203c) and is slidably arranged therein; The fixing member (203) further includes a tension spring (203l) sleeved outside the sliding rod (203k) and an anti-detachment plate (203m) arranged on one side of the sliding rod (203k).

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