Tower crane overload protection device

Abstract

The utility model discloses a tower crane overload protection device which comprises a tower crane frame body and an overload protector, a fixed support is arranged above a tower body of the tower crane frame body, a cross frame is arranged at the top of the tower crane frame body, a cab is arranged at one end of the interior of the cross frame, a crane carriage is arranged at the other end of the lower portion of the interior of the cross frame, and the overload protector is arranged on the crane carriage. A steel wire rope is arranged on the lower portion of the interior of the crane carriage, and a hook is arranged at the bottom end of the steel wire rope. The locking cover is arranged to be of a rotatable opening and closing structure, the locking cover can be opened or closed more easily through the structure, the overload protector can be directly clamped and fixed to the steel wire rope through the method, when the overload protector is installed, installation parts do not need to be detached, the installation parts can be reserved in the locking cover, and therefore the installation parts are prevented from being lost, and the installation efficiency is improved. And the installation position of the overload protector can be rapidly positioned, the installation steps are simplified, and the overload protector can be more conveniently installed or disassembled.

Description

Technical Field

[0001] This utility model relates to the field of tower cranes, specifically to a tower crane overload protection device. Background Technology

[0002] Tower cranes, also known as tower hoists, are lifting equipment used in construction. They are mainly used for concrete pouring and other vertical transportation operations in high-rise buildings. Tower cranes typically consist of a tower body, jib, counterweight jib, tower cap, foundation, slewing mechanism, traveling mechanism, hoisting mechanism, and electrical system. They can be flexibly arranged on different construction sites to adapt to various complex construction environments. Generally speaking, tower cranes can be divided into the following parts according to their functions: foundation, tower body, jacking, slewing, hoisting, counterweight jib, jib, trolley, tower top, operator's cab, luffing mechanism, etc.

[0003] Existing technologies for tower crane overload protection devices still have certain drawbacks in use. Traditional overload protection devices are usually installed using bolts. During the installation process, the installation parts need to be disassembled, and the disassembled parts are easy to lose, making it inconvenient to install the overload protection device. Utility Model Content

[0004] The purpose of this utility model is to provide a tower crane overload protection device to solve the problem mentioned in the background art that traditional overload protection devices are usually installed using bolts. During the installation process, the installation parts need to be disassembled, and the disassembled parts are easy to lose, making it inconvenient to install the overload protection device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tower crane overload protection device, comprising a tower crane frame and an overload protector. A fixed support is provided above the tower body of the tower crane frame. A crossbeam is provided at the top of the tower crane frame. An operator's cab is located at one end of the crossbeam, and a lifting trolley is located at the lower end of the crossbeam. A wire rope is located at the lower part of the lifting trolley, and a hook is provided at the bottom of the wire rope. The overload protector is located at the top of one side of the wire rope. A connecting cable is located at the bottom of the overload protector. A fixing plate is located on one side of the overload protector. Wire rope locking grooves are provided at the upper and lower ends of the fixing plate. A locking cover is located on one side of the fixing plate. A wire rope positioning card is located in the middle of the locking cover. An anti-slip pad is located in the center of the wire rope positioning card. Locking slots are provided at the upper and lower ends of the locking cover. A sensor head is located in the center of the fixing plate. Positioning slots are provided on both sides of the sensor head. Locking bolts are located at the four corners of the middle of the fixing plate.

[0006] In a further embodiment, one side of the locking cover is hinged to the fixing plate via a fixed hinge, and the other side of the locking cover is fixedly connected to the fixing plate via a clip and a slot.

[0007] In a further embodiment, the top of the locking bolt is provided with an annular handle, and the locking bolt and the locking groove are connected by an inlay.

[0008] In a further embodiment, the anti-slip pad and the steel wire rope positioning card are connected by adhesive bonding, and the anti-slip pad is designed to be circular.

[0009] In a further embodiment, the wire rope positioning card and the positioning slot are connected by a snap-fit, and the wire rope positioning card is made of steel.

[0010] In a further embodiment, the wire rope positioning card and the locking cover are fixedly connected by fastening bolts, and the cross-section of the wire rope positioning card is designed as a trapezoidal structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the locking cover is designed as a rotatable opening and closing structure, which makes it easier to open or close the locking cover. Using this method, the overload protector can be directly clamped to the wire rope. When installing the overload protector, it is not necessary to disassemble the installation parts, as the installation parts will be retained inside the locking cover, thereby avoiding the loss of the installation parts. The installation position of the overload protector can be quickly located, simplifying the installation steps and making it easier to install or remove the overload protector. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the tower crane frame of this utility model;

[0013] Figure 2 This is a side view of the overload protector of this utility model;

[0014] Figure 3 This is a rear view of the overload protector of this utility model;

[0015] Figure 4 This is a schematic diagram of the opening structure of the locking cover of this utility model;

[0016] Figure 5 This is a front view of the wire rope positioning card of this utility model.

[0017] In the diagram: 1. Tower crane frame; 2. Fixed support; 3. Operator's cab; 4. Cross frame; 5. Lifting trolley; 6. Wire rope; 7. Overload protector; 8. Hook; 9. Connecting cable; 10. Wire rope clamping groove; 11. Locking bolt; 12. Fastening bolt; 13. Locking cover; 14. Fixing plate; 15. Fixed hinge; 16. Clamp; 17. Locking slot; 18. Wire rope positioning card; 19. Anti-slip pad; 20. Clamping slot; 21. Positioning slot; 22. Sensor head. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figure 1-5 This utility model provides an embodiment of a tower crane overload protection device, comprising a tower crane frame 1 and an overload protector 7. A fixed support 2 is provided above the tower body of the tower crane frame 1. A crossbeam 4 is provided at the top of the tower crane frame 1. An operator's cab 3 is located at one end of the interior of the crossbeam 4, and a lifting trolley 5 is located at the lower end of the interior of the crossbeam 4. A wire rope 6 is located at the lower interior of the lifting trolley 5, and a hook 8 is provided at the bottom end of the wire rope 6. The overload protector 7 is located at the top of one side of the wire rope 6. The bottom of the protector 7 is equipped with a connecting cable 9. A fixing plate 14 is located on one side of the overload protector 7. Steel wire rope locking grooves 10 are located at the upper and lower ends of the fixing plate 14. A locking cover 13 is located on one side of the fixing plate 14. A steel wire rope positioning card 18 is located in the middle of the interior of the locking cover 13. An anti-slip rubber pad 19 is located in the center of the interior of the steel wire rope positioning card 18. Locking slots 17 are located at both the upper and lower ends of the locking cover 13. A sensor head 22 is located in the center of the interior of the fixing plate 14. The sensor 22 has positioning slots 21 on both sides, and locking bolts 11 are provided at the four corners of the middle position of the fixing plate 14; the lifting trolley 5 is used to control the lifting of the wire rope 6, the wire rope 6 is used to suspend goods, the overload protector 7 is used to protect the wire rope 6 from overload, the connecting cable 9 is used to connect the overload protector 7 to the controller for power supply, the wire rope locking groove 10 is used to restrict and fix the installation position of the wire rope 6 and the overload protector 7, and the locking cover 13 is used for... The overload protector 7 and the wire rope 6 are clamped and positioned at the installation location. The wire rope positioning card 18 is used to tighten and adjust the connection position between the wire rope 6 and the overload protector 7. The anti-slip pad 19 is used to increase the anti-slip properties of the inner wall of the wire rope positioning card 18. The locking slot 17 is used to reserve the installation space for the locking bolt 11. The positioning slot 21 is used to install the wire rope positioning card 18. The locking bolt 11 is used to fix the position of the closed locking cover 13.

[0020] One side of the locking cover 13 is hinged to the fixing plate 14 via a fixing hinge 15, and the other side of the locking cover 13 is fixedly connected to the fixing plate 14 via a clip 16 and a slot 20. The fixing hinge 15 facilitates the opening or closing of the locking cover 13 for adjustment.

[0021] The top of the locking bolt 11 is provided with an annular handle, and the locking bolt 11 and the locking slot 17 are connected by an inlay. The annular handle makes it easy to lock the position of the locking bolt 11 and the locking slot 17, and the inlay connection makes it easy to adjust the locking bolt 11 and the locking slot 17.

[0022] The anti-slip pad 19 and the wire rope positioning card 18 are connected by adhesive bonding. The anti-slip pad 19 has a circular shape, and the adhesive bonding facilitates the installation of the anti-slip pad 19 and the wire rope positioning card 18. The wire rope positioning card 18 is connected to the positioning slot 21 by snap-fitting. The wire rope positioning card 18 is made of steel, and the snap-fitting connection facilitates the connection between the wire rope positioning card 18 and the positioning slot 21 and fixes the position of the wire rope positioning card 18. The wire rope positioning card 18 is fixedly connected to the locking cover 13 by fastening bolts 12. The cross-section of the wire rope positioning card 18 is a trapezoidal structure, and the fastening bolts 12 are used to fix the wire rope positioning card 18 and the locking cover 13.

[0023] Working principle: In use, rotate the locking bolt 11 to align it parallel to the locking slot 17. Open the locking cover 13 to one side and install it on the top of one side of the wire rope 6, so that the wire rope 6 is secured inside the wire rope securing groove 10. Then close the locking cover 13 to the other side and fix the closed position of the locking cover 13 by connecting the clamp head 16 and the clamp 20. Tighten the locking bolt 11 by rotating it so that the locking bolt 11 and the locking slot 17 are staggered, and fix the locking cover 13. Then tighten the fastening bolt 12 so that the wire rope positioning card 18 is embedded in the positioning slot 21. The wire rope 6 is pressed and fixed by the wire rope positioning card 18.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tower crane overload protection device, comprising a tower crane frame body (1) and an overload protector (7), characterized in that: The tower crane frame (1) has a fixed support (2) above the tower body, a crossbeam (4) at the top of the tower crane frame (1), a driver's cab (3) at one end of the crossbeam (4), a crane trolley (5) at the other end of the crossbeam (4), a wire rope (6) at the bottom of the crane trolley (5), a hook (8) at the bottom of the wire rope (6), an overload protector (7) at the top of one side of the wire rope (6), a connecting cable (9) at the bottom of the overload protector (7), and a fixing plate (14) on one side of the overload protector (7). 4) The upper and lower ends are provided with wire rope clamping grooves (10), the side of the fixing plate (14) is provided with a locking cover (13), the middle position inside the locking cover (13) is provided with a wire rope positioning card (18), the center position inside the wire rope positioning card (18) is provided with an anti-slip rubber pad (19), the upper and lower positions inside the locking cover (13) are provided with locking slots (17), the center position inside the fixing plate (14) is provided with a sensor head (22), the two sides of the sensor head (22) are provided with positioning slots (21), and the four corners of the middle position of the fixing plate (14) are provided with locking bolts (11).

2. The tower crane overload protection device of claim 1, wherein: One side of the locking cover (13) is hinged to the fixing plate (14) via a fixing hinge (15), and the other side of the locking cover (13) is fixedly connected to the fixing plate (14) via a clip (16) and a slot (20).

3. The tower crane overload protection device of claim 1, wherein: The top of the locking bolt (11) is provided with an annular handle, and the locking bolt (11) and the locking slot (17) are connected by inlay.

4. The tower crane overload protection device of claim 1, wherein: The anti-slip pad (19) is connected to the steel wire rope positioning card (18) by adhesive bonding, and the anti-slip pad (19) is designed to be circular.

5. The tower crane overload protection device of claim 1, wherein: The wire rope positioning card (18) is connected to the positioning slot (21) by a snap-fit, and the wire rope positioning card (18) is made of steel.

6. The tower crane overload protection device of claim 1, wherein: The wire rope positioning card (18) and the locking cover (13) are fixedly connected by fastening bolts (12), and the cross-section of the wire rope positioning card (18) is set as a trapezoidal structure.

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