CN210854987U

CN210854987U - Tower crane with safety protection device

Info

Publication number: CN210854987U
Application number: CN201921659470.3U
Authority: CN
Inventors: 崔恒文; 薛居孝; 劳洪峰
Original assignee: Zhichang Enterprise Service Shandong Co ltd; Zibo City Huantai Lifting Machinery Factory
Current assignee: Zhichang Enterprise Service Shandong Co ltd; Zibo City Huantai Lifting Machinery Factory
Priority date: 2019-10-01
Filing date: 2019-10-01
Publication date: 2020-06-26
Anticipated expiration: 2029-10-01

Abstract

The utility model discloses a tower crane with a safety protection device, which comprises a tower body, a tower tip and a tower arm fixedly arranged on the tower tip, wherein the tower arm comprises a crane boom and a balance arm, the crane boom is provided with a crane trolley in a sliding way, the crane trolley is connected with a lifting hook through a steel wire, the lifting hook is internally provided with an anti-drop structure for preventing a heavy object from dropping off, the anti-drop structure comprises a stop block and a telescopic rod, one end of the stop block is hinged with the lifting hook, the other end of the stop block is hinged with the free end of the telescopic rod, the fixed end of the telescopic rod is hinged with the lifting hook, the outer part of the telescopic rod is sleeved with a spring, the problem that the steel wire rope hung on the lifting hook drops off from the lifting hook can be effectively prevented by arranging the anti-drop structure on the lifting hook, the weight limiter, the safety of operators is ensured by arranging the safety air bag.

Description

Tower crane with safety protection device

Technical Field

The utility model relates to a construction machinery equipment specifically is a tower crane with safety arrangement.

Background

The existing tower crane is not provided with a safety protection device for preventing a heavy object from falling off on a lifting hook, when a crane trolley moves on a crane boom, a steel wire and a vertical direction form a certain angle due to inertia, a steel wire rope hung on the lifting hook can fall off from the lifting hook, and therefore the high-altitude falling accident occurs, and serious consequences are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tower crane with safety arrangement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a tower crane with safety arrangement, includes body of the tower, tower point and the tower arm of fixed mounting on the tower point, the tower arm includes jib loading boom and balance arm, and the slip is provided with the trolley on the jib loading boom, and trolley is connected with the lifting hook through the steel wire, be provided with the anti-drop structure that prevents the heavy object and drop in the lifting hook, the anti-drop structure includes dog and telescopic link, it is articulated between the one end of dog and the lifting hook, articulated between the other end of dog and the free end of telescopic link, articulated between the stiff end of telescopic link and the lifting hook, the outside cover of telescopic link is equipped with.

As a further aspect of the present invention: the tower body fixed mounting is subaerial, the tip of the tower passes through rotation mechanism and is connected with rotating between the tower body, is provided with the driver's cabin on the tip of the tower, fixed mounting has balanced heavy on the balance arm.

As a further aspect of the present invention: the trolley is also provided with a weight limiter and a camera.

As a further aspect of the present invention: an air bag is arranged in the cab.

As a further aspect of the present invention: and a lightning rod is fixedly arranged at the top of the tower tip.

As a further aspect of the present invention: two tower body pull rods are fixedly connected between the tower body and the ground, two crane boom pull rods are fixedly connected between the crane boom and the tower tip, and a balance arm pull rod is fixedly connected between the balance arm and the tower tip.

Compared with the prior art, the beneficial effects of the utility model are that:

through setting up anti-drop structure on the lifting hook, can effectually prevent when trolley moves on the jib loading boom, because inertia leads to the steel wire to be certain angle with vertical direction, probably leads to hanging the problem that wire rope drops from the lifting hook on the lifting hook to avoid the emergence of accident, anti-drop device simple structure, the practicality is strong, sets up the weight limiter and can prevent that the heavy object that hangs is overweight, takes place danger, and the camera can make the operating personnel in the driver's cabin have a better field of vision, guarantees operator safety operation, sets up air bag in the driver's cabin and guarantees operating personnel's safety. Through setting up tower body pull rod, jib loading boom pull rod and balance arm pull rod, guarantee the stable in structure of this device, prevent that this device from collapsing because of the unstable structure of causing in long-term operation, taking place serious accident.

Drawings

Fig. 1 is a schematic structural diagram of a tower crane with a safety protection device.

Fig. 2 is a schematic structural diagram of a tower crane A with a safety protection device.

In the figure: 1-tower body, 101-tower body pull rod, 102-slewing mechanism, 2-tower tip, 201-lightning rod, 3-crane boom, 301-crane trolley, 302-weight limiter, 303-steel wire, 304-lifting hook, 305-block, 306-telescopic rod, 307-spring, 308-crane boom pull rod, 309-camera, 4-balance arm, 401-balance weight, 402-balance arm pull rod and 5-cab.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-2, a tower crane with a safety protection device includes a tower body 1, a tower tip 2 and a tower arm fixedly installed on the tower tip 2, the tower arm includes a boom 3 and a balance arm 4, the boom 3 is slidably provided with a trolley 301, the trolley 301 is connected to a hook 304 through a steel wire 303, the hook 304 is internally provided with an anti-drop structure for preventing a heavy object from dropping, the anti-drop structure includes a stopper 305 and a telescopic rod 306, one end of the stopper 305 is hinged to the hook 304, the other end of the stopper 305 is hinged to a free end of the telescopic rod 306, a fixed end of the telescopic rod 306 is hinged to the hook 304, the telescopic rod 306 is externally sleeved with a spring 307, the spring 307 is always in a compressed state under a normal state, and the telescopic rod 306 pushes up the stopper 305 under the action of an elastic force, so that when the trolley 301 moves on the boom 3, because inertia leads to steel wire 303 to be certain angle with vertical direction, probably leads to hanging the problem that drops from lifting hook 304 on the wire rope on lifting hook 304 to avoid the emergence of accident, anti-drop device simple structure, the practicality is strong.

The tower body 1 is fixedly installed on the ground, the tower tip 2 is rotatably connected with the tower body 1 through the swing mechanism 102, a cab 5 is arranged on the tower tip 2, and a balance weight 401 is fixedly installed on the balance arm 4.

The trolley 301 is also provided with a weight limiter 302 and a camera 309, the weight limiter 302 can prevent the suspended heavy object from being overweight and dangerous, and the camera 309 can enable an operator in the cab 5 to have a better view and ensure the safe operation of the operator.

In order to ensure the safety of operators, an air bag is arranged in the cab 5, and once an accident occurs in the operation, the air bag is automatically inflated, so that the safety of the operators is ensured.

In order to guarantee the safety of equipment, the top fixed mounting of tower point 2 has lightning rod 201, and when thunderstorm weather, through setting up lightning rod 201, prevent this device from suffering the thunderbolt.

The working principle of the embodiment is as follows: through setting up anti-drop structure on lifting hook 304, can effectually prevent when trolley 301 moves on jib loading boom 3, because inertia leads to steel wire 303 to be certain angle with vertical direction, probably leads to hanging the problem that wire rope on lifting hook 304 drops from lifting hook 304 to avoid the emergence of accident, anti-drop device simple structure, the practicality is strong, sets up weight limiter 302 and can prevent that the heavy object that hangs is overweight, takes place danger, and camera 309 can make the operating personnel in driver's cabin 5 have a better field of vision, guarantees operator's safe operation, sets up air bag in driver's cabin 5 and guarantees operating personnel's safety.

Example 2

This example is a further improvement on example 1, and compared with example 1, the main difference is that: the tower comprises a tower body 1, a tower tip 2 and a tower body, wherein the tower body 1 is fixedly connected with the ground through two tower body pull rods 101, the crane boom 3 is fixedly connected with the tower tip 2 through two crane boom pull rods 308, the balance arm 4 is fixedly connected with the tower tip 2 through a balance arm pull rod 402, the tower body pull rod 101, the crane boom pull rod 308 and the balance arm pull rod 402 are arranged, the structural stability of the device is guaranteed, and the device is prevented from collapsing and serious accidents caused by unstable structure in long-term operation.

The working principle of the embodiment is as follows: the structure of the device is more stable by fixedly connecting two tower body pull rods 101 between the tower body 1 and the ground, fixedly connecting two crane boom pull rods 308 between the crane boom 3 and the tower tip 2 and fixedly connecting a balance arm pull rod 402 between the balance arm 4 and the tower tip 2.

In summary, the following steps: tower crane with safety arrangement through set up anti-drop structure on the lifting hook, can effectually prevent when trolley moves on the jib loading boom, because inertia leads to the steel wire to be certain angle with vertical direction, probably leads to hanging the problem that wire rope drops from the lifting hook on the lifting hook to avoid the emergence of accident, anti-drop device simple structure, the practicality is strong, sets up the weight limiter and can prevent that the heavy object that hangs is overweight, takes place dangerously, and the camera can make the operating personnel in the driver's cabin have a better field of vision, guarantees operator's safe operation, sets up air bag in the driver's cabin and guarantees operating personnel's safety. Through setting up tower body pull rod, jib loading boom pull rod and balance arm pull rod, guarantee the stable in structure of this device, prevent that this device from collapsing because of the unstable structure of causing in long-term operation, taking place serious accident.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a tower crane with safety arrangement, includes body of the tower (1), tower point (2) and the tower arm of fixed mounting on tower point (2), the tower arm includes jib loading boom (3) and balance arm (4), and it is provided with trolley (301) to slide on jib loading boom (3), and trolley (301) is connected with lifting hook (304) through steel wire (303), its characterized in that, be provided with the anti-drop structure that prevents the heavy object and drop in lifting hook (304), the anti-drop structure includes dog (305) and telescopic link (306), it is articulated between the one end of dog (305) and lifting hook (304), articulate between the other end of dog (305) and the free end of telescopic link (306), articulate between the stiff end of telescopic link (306) and lifting hook (304), and telescopic link (306) outside cover is equipped with spring (307).

2. The tower crane with the safety protection device according to claim 1, wherein the tower body (1) is fixedly installed on the ground, the tower tip (2) is rotatably connected with the tower body (1) through a slewing mechanism (102), a cab (5) is arranged on the tower tip (2), and a counterweight (401) is fixedly installed on the balance arm (4).

3. The tower crane with safety protection device according to claim 2, wherein the trolley (301) is further provided with a weight limiter (302) and a camera (309).

4. A tower crane with safety arrangement according to claim 3, characterised in that an airbag is arranged in the cab (5).

5. The tower crane with the safety protection device according to claim 4, wherein a lightning rod (201) is fixedly installed on the top of the tower tip (2).

6. The tower crane with the safety protection device according to claim 5, wherein two tower body pull rods (101) are fixedly connected between the tower body (1) and the ground, two boom pull rods (308) are fixedly connected between the boom (3) and the tower tip (2), and a balance arm pull rod (402) is fixedly connected between the balance arm (4) and the tower tip (2).