Visual device of tower crane cab

Abstract

The utility model relates to a tower crane cab visual device, and belongs to the technical field of tower cranes, the tower crane cab visual device comprises a support frame, a suspension arm, a cab and a hoisting mechanism, the cab and the hoisting mechanism are arranged on the suspension arm, and the hoisting mechanism comprises a walking structure capable of moving relative to the suspension arm, a hanging scaffold arranged on the walking structure and a lifting hook installed on the hanging scaffold. According to the visual device for the tower crane cab, the camera is installed at the position, located on one side of the lifting hook, of the hanging scaffold for lifting of the tower crane, so that the position of the lifting hook can be accurately and visually judged within the capturing range of the camera, and the judgment accuracy of a driver can be improved by cooperating with a high-definition displayer located in the cab; and in addition, the mode that a clamping block is controlled to clamp and assemble the camera through external rotation is achieved by arranging a connecting disc on the protection box and a shear type piece in the protection box, the mounting and dismounting convenience of the camera can be improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tower cranes, and specifically to a visual device for a tower crane cab. Background Art

[0002] A mobile tower crane is a tower crane with a walking function. It is usually used for hoisting and handling operations on construction sites. The mobile tower crane has a large lifting capacity and a large working range, and can efficiently complete various hoisting tasks. The mobile tower crane is usually composed of a tower body, a boom, a hoisting mechanism, a walking mechanism, etc., and is easy to operate, safe and reliable, and is one of the common hoisting equipment on construction sites.

[0003] The tower crane selects a boom with an appropriate length according to the construction site environment. In the application of a long boom, since the tower crane cab is at a relatively long distance from the hook on the boom for hoisting, at this time, the operator's ability to observe and judge the hook decreases, making the hoisting and disassembling during the hoisting work of the tower crane relatively slow, reducing the use efficiency of the tower crane. For this reason, a visual device for a tower crane cab is proposed to solve the above-mentioned problems. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the present application provides a visual device for a tower crane cab, which has the advantages of facilitating real-time visual observation of the hook in the tower crane cab and improving the hoisting efficiency.

[0005] To achieve the above object, the present application provides the following technical solution: A visual device for a tower crane cab, comprising a support frame, a boom, a cab and a hoisting mechanism arranged on the boom, the hoisting mechanism comprising a walking structure movable relative to the boom, a hanging plate arranged on the walking structure, and a hook installed on the hanging plate;

[0006] A camera is arranged on the hanging plate, and a connection structure is arranged between the camera and the hanging plate.

[0007] Further, the connection structure comprises a connection plate, a protective box fixedly connected to the connection plate, and a scissor member built in the protective box, and the base of the camera is fixedly connected to the bottom of the protective box.

[0008] Further, a stepped groove is formed at the top of the connection plate, the groove penetrates through the connection plate, and a clamping block for clamping and fixing outside the hanging plate is slidably connected in the groove.

[0009] Further, the clamping block is triangular, and reinforcing ribs are arranged outside the clamping block.

[0010] Furthermore, a vertical frame extending into the protective box is fixedly installed at the bottom of the connection plate. The scissor member includes a sliding plate slidably installed between vertically arranged frames arranged front and back, and scissor rods rotatably connected between the front and rear side walls of the sliding plate and the clamping block.

[0011] Furthermore, sliders are fixedly installed on the front, rear, left, and right sides of both ends of the sliding plate. Through grooves are formed in the vertical frame, and the sliders are slidably connected to the through grooves.

[0012] Furthermore, a fixing plate is fixedly connected to the bottom end of the vertical frame. A threaded rod threadedly connected to the fixing plate is fixedly installed at the bottom of the connection plate. Guide rods located on both sides of the threaded rod are also fixedly installed at the bottom of the connection plate, and the guide rods are slidably connected to the fixing plate.

[0013] Furthermore, a worm gear is rotatably installed on the inner bottom wall of the protective box. The worm gear is fixedly connected to the threaded rod. A worm is rotatably installed between the left and right side walls of the fixing plate, and the worm meshes with the worm gear.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] For this tower crane cab visual device, by arranging the camera at the position of the hanging plate lifted by the tower crane on one side of the hook, within the capture range of the camera, the position of the hook can be accurately visually judged. Cooperating with the high-definition display in the cab, the judgment accuracy of the driver can be improved, thereby improving the lifting efficiency. In addition, by arranging the connection plate on the protective box and the scissor member in the protective box to realize the external rotation control of the clamping block to clamp and assemble the camera, the installation and disassembly convenience of the camera can be improved, and the practicability of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present application;

[0017] Figure 2 is for the present application Figure 1 is the enlarged structural view of part A in;

[0018] Figure 3 is the structural schematic diagram of the protective box of the present application;

[0019] Figure 4 is the longitudinal sectional three-dimensional view of the connection plate of the present application.

[0020] In the figure: 1, support frame; 2, jib; 3, cab; 4, traveling structure; 5, hanging tray; 6, hook; 7, connecting plate; 8, protective box; 9, camera; 10, groove; 11, vertical frame; 12, sliding plate; 13, slider; 14, chute; 15, scissors rod; 16, threaded rod; 17, guide rod; 18, fixing plate; 19, worm gear; 20, worm; 21, clamping block. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0022] Please refer to Figures 1 to 4 , a visual device for a tower crane cab in this embodiment includes a support frame 1, a jib 2, a cab 3 and a hoisting mechanism arranged on the jib 2. The hoisting mechanism includes a traveling structure 4 that can move relative to the jib 2, a hanging tray 5 arranged on the traveling structure 4, and a hook 6 installed on the hanging tray 5.

[0023] In this embodiment, a camera 9 is arranged on the hanging tray 5, and a connection structure is arranged between the camera 9 and the hanging tray 5 for connection and installation. A high-definition display screen adapted to the camera 9 is installed in the cab 3. The camera 9 is self-powered by an internal power supply and can transmit visual information in real time on site through Bluetooth or wireless network.

[0024] In the present application, the camera 9 is assembled on the hanging tray 5 and moves together with the hoisting mechanism, so that the position information of the hook 6 obtained by the camera 9 is directly displayed on the high-definition display screen in the cab 3, thereby facilitating the driver in the cab 3 to visually observe the position information of the hook 6 at a relatively long distance, helping to improve the judgment speed and accelerating the on-site hoisting efficiency.

[0025] It should be noted that the connection structure is used to install and connect the camera 9 and has the characteristics of quick installation and disassembly to adapt to the installation of hanging trays 5 of different sizes.

[0026] In this embodiment, the connection structure includes a connecting plate 7, a protective box 8 fixedly connected to the connecting plate 7, and a scissor member built in the protective box 8. The base of the camera 9 is fixedly connected to the bottom of the protective box 8.

[0027] In this embodiment, a stepped groove 10 is formed at the top of the connecting plate 7. The groove 10 penetrates through the connecting plate 7, and a clamping block 21 for clamping and fixing on the outside of the hanging tray 5 is slidably connected in the groove 10.

[0028] Preferably, the clamping block 21 is triangular, and the outside of the clamping block 21 is provided with reinforcing ribs for improving the self-strength and clamping stability of the clamping block 21.

[0029] It should be noted that a vertical frame 11 extending into the protective box 8 is fixedly installed at the bottom of the connecting disk 7. There are four vertical frames 11 in total, and the four vertical frames 11 are located at the four vertex positions of the bottom of the connecting disk 7.

[0030] Furthermore, the scissor member includes a sliding plate 12 slidably installed between the vertically arranged front and rear vertical frames 11 and scissor rods 15 rotatably connected between the front and rear side walls of the sliding plate 12 and the clamping block 21.

[0031] Preferably, sliding blocks 13 are fixedly installed on both the front and rear sides of both ends of the sliding plate 12. A sliding groove 14 is formed through the vertical frame 11, and the sliding blocks 13 are slidably connected to the sliding groove 14. By restricting the sliding of the sliding blocks 13 relative to the sliding groove 14, the movement stability of the sliding plate 12 can be improved.

[0032] In a specific implementation, by changing the height position of the sliding plate 12 relative to the vertical frame 11, the scissor rod 15 can be made to push the vertical frame 11 to slide and change its position in the groove 10.

[0033] In this embodiment, a fixing plate 18 is fixedly connected to the bottom end of the vertical frame 11, and a threaded rod 16 threadedly connected to the fixing plate 18 is fixedly installed at the bottom of the connecting disk 7. By rotating the threaded rod 16, the fixing plate 18 can be made to slide and change its position between the vertical frames 11.

[0034] Preferably, guide rods 17 are also fixedly installed on both sides of the threaded rod 16 at the bottom of the connecting disk 7. The guide rods 17 are slidably connected to the fixing plate 18, and the sliding stability of the fixing plate 18 can be further improved through the guide rods 17.

[0035] In this embodiment, a worm gear 19 is also rotatably installed on the inner bottom wall of the protective box 8. The worm gear 19 is fixedly connected to the threaded rod 16. Through the fixed connection between the threaded rod 16 and the worm gear 19, the worm gear 19 can drive the threaded rod 16 to rotate when rotating.

[0036] It should be noted that a worm 20 is also rotatably installed between the left and right side walls of the fixing plate 18. The worm 20 meshes with the worm gear 19. By the worm 20 pulling the worm gear 19 to rotate, the rotational pulling of the threaded rod 16 can be realized, and through the mutual meshing of the worm gear 19 and the worm 20, the rotational self-locking of the adjusted threaded rod 16 can also be realized.

[0037] The working principle of the above embodiment is as follows:

[0038] By installing a camera 9 on the hanging tray 5 in the assembled hoisting mechanism of the tower crane, the high-definition display in the cab 3 can perform visual operations on the hook 6. By fitting the camera 9 together with the protective box 8 and the connecting plate 7 on the camera 9 to the hanging tray 5, and by pulling the worm 20 extending to one side of the protective box 8, an electric wrench tool can be selected to drive the worm 20 to rotate in the protective box 8. When the worm 20 rotates, it meshes with the worm gear 19, causing the worm gear 19 to rotate synchronously. When the worm gear 19 rotates, the fixedly connected threaded rod 16 rotates synchronously. At this time, the fixing plate 18 in the protective box 8 slides and changes its position relative to the vertical frame 11 through threaded cooperation with the threaded rod 16. After the fixing plate 18 changes its position, the scissors rod 15 rotatably connected between the fixing plate 18 and the clamping block 21 rotates to pull the clamping block 21 closer, thereby realizing the rapid assembly of the camera 9.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0040] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A visual device for a tower crane cab, comprising a support frame (1), a boom (2), a cab (3) provided on the boom (2), and a hoisting mechanism, characterized in that: The hoisting mechanism includes a traveling structure (4) that can move relative to the boom (2), a hanging plate (5) provided on the traveling structure (4), and a hook (6) installed on the hanging plate (5); A camera (9) is provided on the hanging plate (5), and a connecting structure is provided between the camera (9) and the hanging plate (5).

2. The visual device for a tower crane cab according to claim 1, characterized in that: The connecting structure includes a connecting plate (7), a protective box (8) fixedly connected to the connecting plate (7), and a scissor member built in the protective box (8). The base of the camera (9) is fixedly connected to the bottom of the protective box (8).

3. The visual device for a tower crane cab according to claim 2, wherein: A stepped groove (10) is formed at the top of the connecting plate (7), the groove (10) penetrates through the connecting plate (7), and a clamping block (21) for clamping and fixing to the outside of the hanging plate (5) is slidably connected in the groove (10).

4. The visual device for the tower crane cab according to claim 3, characterized in that: The clamping block (21) is triangular, and the outside of the clamping block (21) is provided with reinforcing ribs.

5. The visual device for a tower crane cab according to claim 3, characterized in that: A vertical frame (11) extending into the protective box (8) is fixedly installed at the bottom of the connecting plate (7). The scissor member includes a sliding plate (12) slidably installed between the vertically arranged front and rear vertical frames (11), and scissor rods (15) rotatably connected between the front and rear side walls of the sliding plate (12) and the clamping block (21).

6. The visual device for a tower crane cab according to claim 5, characterized in that: Sliding blocks (13) are fixedly installed on both the front and rear sides of both ends of the sliding plate (12). A sliding groove (14) is formed through the vertical frame (11), and the sliding blocks (13) are slidably connected to the sliding groove (14).

7. The visual device for a tower crane cab according to claim 5, wherein: A fixing plate (18) is fixedly connected to the bottom end of the vertical frame (11). A threaded rod (16) threadedly connected to the fixing plate (18) is fixedly installed at the bottom of the connecting plate (7). Guide rods (17) located on both sides of the threaded rod (16) are also fixedly installed at the bottom of the connecting plate (7), and the guide rods (17) are slidably connected to the fixing plate (18).

8. The visual device for a tower crane cab according to claim 7, characterized in that: A worm gear (19) is rotatably installed on the inner bottom wall of the protective box (8), the worm gear (19) is fixedly connected to the threaded rod (16), and a worm (20) is rotatably installed between the left and right side walls of the fixing plate (18), and the worm (20) meshes with the worm gear (19).

Images