CN211034949U

CN211034949U - Discharging system applied to construction crane

Info

Publication number: CN211034949U
Application number: CN201922022001.7U
Authority: CN
Inventors: 刘易勇; 张小红; 周海鹏
Original assignee: Xi'an Youlai Test Technology Co ltd
Current assignee: Liu Yiyong
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-17
Anticipated expiration: 2029-11-21

Abstract

The utility model provides a discharging system applied to a construction crane, which comprises a discharging rod and a grounding monitoring box; the discharge rod comprises a main rod and a connecting piece arranged at the top end of the main rod; a first binding post penetrating through the box wall is arranged on one side of the grounding monitoring box, and a second binding post penetrating through the box wall is arranged on the other opposite side of the grounding monitoring box; the grounding monitoring box is internally provided with a grounding monitoring module, and the grounding monitoring module is provided with an input interface and an output interface; the part of the first binding post, which is positioned outside the box, is electrically connected with the connecting piece, and the part, which is positioned inside the box, is electrically connected with the input interface; the part of the second binding post positioned in the box is electrically connected with the output interface, and the part positioned outside the box is grounded. The utility model discloses can release the electric charge of accumulation on the crane hook fast to the personal safety of the operation personnel of unloading, feeding is protected, and easy operation.

Description

Discharging system applied to construction crane

Technical Field

The utility model relates to a construction technical field, concretely relates to be applied to construction crane's discharge system.

Background

During construction site construction, because there is the radio frequency electromagnetic signal emission source near the construction site, can produce induced voltage on the all kinds of cranes of construction, receive the influence of electric charge skin effect and most effect, most electric charges can accumulate in the lifting hook position of hoist, when the hoist and mount material, thereby the operating personnel touches the lifting hook very easily and is burnt by the electricity. In the related art, an operator is generally required to wear the insulating gloves, but the insulating gloves with better quality are not flexible after being worn, so that the normal operation of the operator is influenced, and the operation efficiency of the operator is greatly reduced.

It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned existing equipment, the utility model aims to provide a be applied to construction crane's discharge system can discharge the accumulated charge on the crane hook fast to the personal safety of the operation personnel of unloading, feeding is protected.

In order to realize the purpose, the utility model adopts the following technical scheme:

the discharging system applied to the construction crane comprises a discharging rod and a grounding monitoring box;

the discharge rod comprises a main rod body and a connecting piece arranged at the top end of the main rod body;

a first binding post penetrating through the box wall is arranged on one side of the grounding monitoring box, and a second binding post penetrating through the box wall is arranged on the other opposite side of the grounding monitoring box; the grounding monitoring box is internally provided with a grounding monitoring module, and the grounding monitoring module is provided with an input interface and an output interface;

the part of the first binding post, which is positioned outside the box, is electrically connected with the connecting piece, and the part, which is positioned inside the box, is electrically connected with the input interface; the part of the second binding post, which is positioned in the box, is electrically connected with the output interface, and the part, which is positioned outside the box, is electrically connected with the grounding body.

Furthermore, an alarm indicating unit is further arranged on the grounding monitoring box and electrically connected with the grounding monitoring module. When the discharging system is connected with the grounding body and then is in poor connection, the alarm indicating unit gives an alarm to prompt an operator to check whether the discharging system is in good grounding.

Furthermore, the connecting piece is a U-shaped copper hook, and the U-shaped copper hook is convenient to be connected with a lifting hook of a crane.

Furthermore, the part of the first binding post, which is positioned outside the box, is electrically connected with the connecting piece through a copper wire, and the part of the first binding post, which is positioned inside the box, is electrically connected with the input interface through a copper wire.

Furthermore, the part of the second binding post inside the box is electrically connected with the output interface through a copper wire, and the part of the second binding post outside the box is electrically connected with the grounding body through a copper wire.

Further, the copper wire is a twin-core copper wire.

Further, the grounding resistance detection value of the grounding monitoring module is less than or equal to 50 ohms.

Further, the grounding monitoring module is powered by a lithium battery.

Further, the voltage of the lithium battery is 3.6V.

Further, the grounding monitoring module works at a current of 25mA when alarming and works at a current of 0.5mA when not alarming.

The utility model has the advantages that:

the utility model has the advantages of simple structure, the quality is light, and the removal of being convenient for is used, discharges rapidly, and insulating nature is good, and easy operation can discharge the accumulated charge on the hoist lifting hook fast to the personal safety of the operation personnel of unloading is loaded in the protection.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the connection relationship between the present invention and the crane.

In the figure: 1 is the discharge pole, 11 is the main part pole, 12 is the connecting piece, 2 is ground connection monitoring box, 21 is first terminal, 22 is the second terminal, 23 is ground connection monitoring module, 24 is input interface, 25 is output interface, 26 is alarm indication unit, 3 is the grounding body, 4 is the hoist, 41 is the lifting hook.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the invention, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

As shown in fig. 1 and 2, the discharging system applied to the construction crane may include a discharging rod 1 and a ground monitoring box 2; the discharge rod 1 comprises a main rod 11 and a connecting piece 12 arranged at the top end of the main rod 11, wherein the connecting piece 12 can be a U-shaped copper hook; a first binding post 21 penetrating through the box wall is arranged on one side of the grounding monitoring box 2, and a second binding post 22 penetrating through the box wall is arranged on the opposite side; the grounding monitoring box 2 is internally provided with a grounding monitoring module 23, and the grounding monitoring module 23 is provided with an input interface 24 and an output interface 25; wherein, the part of the first binding post 21 outside the box is electrically connected with the connecting piece 12, and the part inside the box is electrically connected with the input interface 24; the part of the second terminal 22 located inside the case is electrically connected to the output port 25, and the part located outside the case is electrically connected to the ground body 3.

The ground monitoring box 2 may further be provided with an alarm indication unit 26, and the alarm indication unit 26 is electrically connected with the ground monitoring module 23. The alarm indication unit 26 may be an alarm indication lamp for reminding an operator of timely checking when the discharging system is not connected with the grounding body 3.

As shown in fig. 3, the working principle of the present invention is as follows:

when the grounding monitoring box is used, the discharging system and the grounding body 3 are electrically connected and grounded, specifically, the part of the second binding post 22 on the grounding monitoring box 2, which is positioned outside the box, is connected with the grounding body 3 through a double-core copper wire, when the discharging system and the grounding body 3 are badly connected, the grounding monitoring module 23 can send out an alarm prompt sound, meanwhile, an alarm indicator lamp on the grounding monitoring box 2 can be lightened, and whether grounding is good or not needs to be checked.

After the reliable connection of the discharging system and the grounding body 3 is determined, before an operator loads and unloads the crane, the U-shaped copper hook at the top end of the discharging rod 1 is used for hooking a lifting hook 41 of the crane 4 or a steel cable below the lifting hook 41; at this time, since the U-shaped copper hook at the top end of the discharge rod 1 is electrically connected to the first terminal 21 of the ground monitoring box 2, and the second terminal 22 of the ground monitoring box 2 is electrically connected to the grounding body 3, the electric charge accumulated on the hook is quickly discharged through the discharge system connected to the grounding body 3, the level on the hook 41 is forcibly and quickly lowered, the operator is close to the potential of the hook 41 of the crane 4, and the operator is prevented from being burnt by electric shock of the electric charge accumulated on the hook 41 to a certain extent.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims

1. An electric discharge system for a construction crane, comprising:

the discharge rod (1) comprises a main body rod (11) and a connecting piece (12) arranged at the top end of the main body rod (11);

the grounding monitoring box comprises a grounding monitoring box (2), wherein one side of the grounding monitoring box (2) is provided with a first binding post (21) penetrating through the box wall, and the other opposite side of the grounding monitoring box is provided with a second binding post (22) penetrating through the box wall; a grounding monitoring module (23) is arranged in the grounding monitoring box (2), and an input interface (24) and an output interface (25) are arranged on the grounding monitoring module (23);

wherein the part of the first binding post (21) positioned outside the box is electrically connected with the connecting piece (12), and the part positioned inside the box is electrically connected with the input interface (24); the part of the second binding post (22) positioned in the box is electrically connected with the output interface (25), and the part positioned outside the box is electrically connected with the grounding body (3).

2. The discharging system applied to the construction crane as recited in claim 1, wherein an alarm indicating unit (26) is further disposed on the ground monitoring box (2), and the alarm indicating unit (26) is electrically connected with the ground monitoring module (23).

3. Discharge system according to claim 2, characterized in that the connecting piece (12) is a U-shaped copper hook.

4. The discharge system according to claim 3, wherein the portion of the first terminal (21) located outside the tank is electrically connected to the connector (12) by a copper wire, and the portion of the first terminal (21) located inside the tank is electrically connected to the input interface (24) by a copper wire.

5. The discharge system according to claim 4, wherein the portion of the second terminal (22) located inside the tank is electrically connected to the output port (25) by a copper wire, and the portion of the second terminal (22) located outside the tank is electrically connected to the ground body (3) by a copper wire.

6. The discharge system of claim 4 or 5, wherein the copper wire is a two-core copper wire.

7. The discharging system applied to the construction crane according to claim 6, wherein the grounding resistance detection value of the grounding monitoring module (23) is less than or equal to 50 ohms.

8. Discharging system applied to construction cranes, according to claim 7, characterized in that the grounding monitoring module (23) is powered by a lithium battery.

9. The discharging system applied to the construction crane according to claim 8, wherein the voltage of the lithium battery is 3.6V.

10. The discharge system applied to the construction crane, as recited in claim 9, wherein the grounding monitoring module (23) operates with 25mA of current when alarming and 0.5mA of current when not alarming.