CN112952935B

CN112952935B - Charging connecting piece, charging device and method and crane

Info

Publication number: CN112952935B
Application number: CN202110154941.0A
Authority: CN
Inventors: 郑潜; 谭树康
Original assignee: Sany Automobile Hoisting Machinery Co Ltd
Current assignee: Sany Automobile Hoisting Machinery Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-11-15
Anticipated expiration: 2041-02-04
Also published as: CN112952935A

Abstract

The invention provides a charging connecting piece, a charging device, a charging method and a crane, wherein the charging device is suitable for being installed on a telescopic arm of the crane, the telescopic arm of the crane comprises a basic arm, an arm head and a movable arm, at least the basic arm and the arm head are provided with the charging connecting piece, and the charging connecting pieces on the basic arm and the arm head are respectively suitable for being electrically connected with a power supply and a wireless communication device; when the telescopic arm of the crane is in a retraction state, all the charging connecting pieces are sequentially abutted and electrically connected to charge the wireless communication device by the power supply, and when the telescopic arm of the crane is in an extension state, at least two charging connecting pieces are mutually separated. In the invention, the charging connecting pieces arranged on the telescopic arm of the crane are matched with each other, so that the wireless communication device can be connected with the power supply through the charging connecting pieces which are electrically connected in sequence, and the power of the power supply is transmitted to the battery of the wireless communication device through the charging connecting pieces.

Description

Charging connecting piece, charging device and method and crane

Technical Field

The invention relates to the technical field of cranes, in particular to a charging connecting piece, a charging device, a charging method and a crane.

Background

The communication device of the existing crane arm head mostly depends on the wired mode of cable drum type devices and the like for supplying power, but the telescopic arm of the crane needs to do telescopic work, so that the cable line is easy to interfere with the operation of the crane arm or the cable line is easy to be pulled and broken and the like. In addition, the application demand of the wireless communication device of the crane jib head is gradually increased, but because the crane application field is not fixed, and the crane jib head has large volume and weight and high height away from the ground, the charging operation of the wireless communication device of the crane jib head is difficult, and the wireless communication device of the crane jib head cannot be popularized and implemented in a large range.

Disclosure of Invention

The problem solved by the invention is that the charging operation of the wireless communication device of the crane arm head is difficult.

In order to solve at least one aspect of the above problems, the present invention firstly provides a charging connector, adapted to be installed on a telescopic boom of a crane, where the telescopic boom of the crane includes a basic boom, a boom head, and a plurality of movable booms sequentially sleeved between the basic boom and the boom head, at least the basic boom and the boom head are installed with the charging connector, the charging connector on the basic boom is adapted to be electrically connected to a power supply, and the charging connector on the boom head is adapted to be electrically connected to a wireless communication device; when the telescopic arm of the crane is in a retraction state, all the charging connecting pieces are sequentially abutted and electrically connected.

Compared with the prior art, the charging connecting piece is matched with each charging connecting piece on the basic arm, the arm head and each movable arm of the telescopic arm of the crane or directly matched with each other by the charging connecting pieces on the basic arm and the arm head of the telescopic arm of the crane, so that the wireless communication device can be connected with a power supply through the charging connecting pieces which are electrically connected in sequence, and the electricity of the power supply is transmitted to a battery of the wireless communication device through the charging connecting pieces, and the charging connecting piece has a simple structure and is convenient to realize; the wireless communication device is charged and disconnected by fully utilizing the retracting and extending operating characteristics of the crane telescopic arm, when the crane telescopic arm is in a retracting state, the wireless communication device is charged through the charging connecting pieces which are sequentially and electrically connected, and when the crane telescopic arm is in an extending state, the wireless communication device is disconnected from the charging connecting pieces which are mutually separated, so that the wireless communication device is suitable for large-scale popularization and application on a crane; and each charging connecting piece is conflict electric connection each other, has saved cable wire connection, and this has not only eliminated the cable and to the interference problem of hoist and mount work, also ensures that the hoist does not have the cable risk of hanging up when the during operation, greatly reduced cost of maintenance.

Optionally, the charging connector comprises a connecting seat, the connecting seat is respectively provided with a first connecting part and a second connecting part on the front side wall and the rear side wall of the extension direction of the crane telescopic arm, the first connecting part is arranged close to the arm head compared with the second connecting part, and the shape of the first connecting part is matched with that of the second connecting part; the inner wall of the right-angle surface of the connecting seat is connected with the crane telescopic arm, and the first connecting part of the charging connecting piece is located on one side, close to the crane telescopic arm, of the second connecting part.

Compared with the prior art, the charging connecting piece has the advantages that the first connecting part and the second connecting part which are matched in shape are arranged on the front side and the rear side of the connecting seat of the charging connecting piece, so that the charging route of the wireless communication device can be switched on and off by utilizing the retracting and extending operating characteristics of the telescopic arm of the crane, other additional auxiliary operations are not needed, and the charging connecting piece is convenient to implement; the charging device is not limited by the number of sections of the telescopic arm of the crane, the purpose of charging the wireless communication device can be realized only by additionally arranging a charging connecting piece on each section of arm, and the charging device is suitable for large-scale popularization and application; the inner wall of the right-angle surface of the connecting seat is connected with the crane telescopic arm, the first connecting portion of the charging connecting piece is arranged on one side, close to the crane telescopic arm, of the second connecting portion, the overall structure of the charging device can be matched with the appearance structure of the crane telescopic arm when the crane telescopic arm is in the retraction state, and the charging device is mounted on the crane telescopic arm and then is more compact and reliable in structure.

Optionally, the first connecting portion is a tapered column protruding forward from a front side wall of the connecting seat, and the second connecting portion is a tapered hole recessed forward from a rear side wall of the connecting seat.

Compared with the prior art, the charging connecting piece has the advantages that the first connecting part and the second connecting part are respectively provided with the tapered column and the tapered hole which are matched with each other in shape, the structure is simple and reliable, and the requirement on size precision when the first connecting part and the second connecting part are matched with each other can be reduced due to the conical shape, so that the front charging connecting piece and the rear charging connecting piece can be conducted with each other.

Optionally, the inner wall of the tapered bore and/or the outer wall of the tapered post are resilient.

Compared with the prior art, at least one of the inner wall of the tapered hole and the tapered column is designed to be of an elastic structure, so that the tapered column and the tapered hole can be tightly attached to each other when being mutually abutted and electrically connected, and the conductive efficiency of the charging device is ensured.

Optionally, the connecting seat is magnetically connected with the crane telescopic arm.

Compared with the prior art, the charging connecting piece is in a magnetic connection structure between the connecting seat and the telescopic arm of the crane, so that the charging connecting piece is convenient to mount and dismount, the number of sections of the movable arm is convenient to increase and decrease, the charging connecting piece can be directly fixed on the arm in a magnetic connection mode under the condition that the number of the movable arms is increased and the movable arms are not required to be additionally structurally designed, the transformation cost is low, and the charging connecting piece is suitable for large-scale popularization and application.

Optionally, the connecting seat is of an L-shaped structure, the connecting seat includes a first body and a second body that are connected perpendicularly to each other, the first connecting portion is located on the front side of the first body, and the second connecting portion is located on the rear side of the second body.

Compared with the prior art, the connecting seat of the charging connecting piece is designed into an L-shaped structure, so that when the telescopic arm of the crane is in a retraction state, two adjacent charging connecting pieces are connected and have a certain length, and the connection charging can be smoothly realized under the condition that the front parts of all sections of arms are separated from each other by a certain distance when the movable arm and the arm head are retracted into the basic arm; and set up first connecting portion in the front side of the first body of L type structure, set up the rear side of the second body of L type structure with the second connecting portion to it is more convenient to make the fixed mounting of charging connecting piece.

Optionally, an L-shaped slide rail is arranged between the first body and the second body, the L-shaped slide rail includes a first slide rail and a second slide rail which are connected in a mutually perpendicular manner, the first body is provided with a first sliding groove matched with the first slide rail, and the second body is provided with a second sliding groove matched with the second slide rail.

Compared with the prior art, the charging connecting piece is additionally provided with the L-shaped sliding rail between the first body and the second body, and the sliding grooves matched with the L-shaped sliding rail are respectively formed in the first body and the second body, so that the connecting seat can be adjustable in length in two directions, and the application range of the charging connecting piece is wider.

In addition, the invention provides a charging device which comprises a plurality of charging connecting pieces, wherein the charging connecting pieces are sequentially arranged in the extending direction of the telescopic arm of the crane, and when the telescopic arm of the crane is in a retracting state, all the charging connecting pieces are sequentially abutted and electrically connected.

Compared with the prior art, the charging device and the charging connecting piece have the same advantages compared with the prior art, and are not described again.

In addition, the present invention provides a charging method based on the charging device as described above, including the steps of: when the telescopic arm of the crane is in a retraction state, all the charging connecting pieces are sequentially butted and electrically connected with each other, so that the charging of the wireless communication device is realized; when the telescopic arm of the crane is in an extending state, at least two charging connecting pieces are separated from each other.

Compared with the prior art, the charging method of the present invention has the same advantages as the charging connector described above compared with the prior art, and is not described herein again.

In addition, the invention provides a crane, which comprises the charging device.

Compared with the prior art, the crane and the charging connecting piece have the same advantages compared with the prior art, and are not described again.

Drawings

Fig. 1 is a structural view of a charging connector according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a charging device according to an embodiment of the present invention in a charging state;

fig. 3 is a structural diagram of a charging device according to an embodiment of the present invention in a charging state;

FIG. 4 is a partial block diagram of a crane according to an embodiment of the present invention;

fig. 5 is a structural diagram of a charging connector according to another embodiment of the present invention.

Description of reference numerals:

1-telescopic arm of crane, 11-basic arm, 12-arm head, 13-movable arm, 2-charging connecting piece, 21-connecting seat, 211-first body, 212-second body, 22-conical column, 23-conical hole, 24-L type slide rail, 241-first slide rail, 242-second slide rail and 3-wireless communication device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" or "the" and similar referents in the description and claims of the present invention also do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. The word "comprising" or "comprises", and the like, means that the element or item preceding the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. In the drawings of the embodiment of the invention, a coordinate system XYZ is provided, wherein the forward direction of an X axis represents the left direction, the reverse direction of the X axis represents the right direction, the forward direction of a Y axis represents the front direction, the reverse direction of the Y axis represents the rear direction, the Y axis is the extending direction of a telescopic arm of a crane, the forward direction of a Z axis represents the upper direction, and the reverse direction of the Z axis represents the lower direction.

In addition, in the description of the present invention, it should be noted that the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The embodiment of the invention provides a charging connector, which is shown in fig. 2, fig. 3 and fig. 4 and is suitable for being installed on a crane telescopic boom 1, wherein the crane telescopic boom 1 comprises a basic boom 11, a boom head 12 and a plurality of movable booms 13 sequentially sleeved between the basic boom 11 and the boom head 12, at least the basic boom 11 and the boom head 12 are provided with the charging connector 2, the charging connector 2 on the basic boom 11 is suitable for being electrically connected with a power supply (not shown in the figures), and the charging connector 2 on the boom head 12 is suitable for being electrically connected with a wireless communication device 3; the telescopic crane boom 1 is provided with a retraction state and an extension state, when the telescopic crane boom 1 is in the retraction state, all the charging connecting pieces 2 are sequentially abutted and electrically connected to realize that the power supply supplies the wireless communication device 3 for charging, and when the telescopic crane boom 1 is in the extension state, at least two charging connecting pieces 2 are mutually separated to realize the disconnection and charging of the wireless communication device 3.

In the embodiment, one charging connector 2 may be installed on each of the basic arm 11, the arm head 12 and each movable arm 13, or only one charging connector 2 may be installed on each of the basic arm 11 and the arm head 12, and the specific selection may be designed according to the shape and size of the charging connector 2 and the actual design requirement; the power supply is arranged on the basic arm 11, the wireless communication device 3 is arranged on the arm head 12, a battery is arranged on the wireless communication device 3, and the power supply supplies power to the battery through the charging device; the arm head 12, the plurality of movable arms 13, and the basic arm 11 are sequentially sleeved in the front-rear direction, that is, the sections of the arm head 12, the plurality of movable arms 13, and the basic arm 11 perpendicular to the telescopic direction are all square, the area of the square section of the arm head 12 is the smallest, the area of the square section of the basic arm 11 is the largest, the areas of the square sections of the plurality of movable arms 13 are sequentially increased from front to rear, and it should be noted that the telescopic direction refers to the front-rear direction.

When the telescopic arm 1 of the crane needs to retract, the arm head 12 and the plurality of movable arms 13 both move backwards and retract into the basic arm 11, when the telescopic arm 1 of the crane is in a retracted state, a part of the front part of the arm head 12 protrudes forwards relative to the front side surface of the movable arm 13 positioned behind the arm, a part of the front part of the movable arm 13 positioned ahead the arm 13 positioned behind the arm also protrudes forwards relative to the front side surface of the movable arm 13 positioned behind the arm, and similarly, a part of the front part of the movable arm 13 adjacent to the basic arm 11 protrudes forwards relative to the front side surface of the basic arm 11, so that each charging connector 2 is smoothly mounted on the telescopic arm 1 of the crane and the charging connectors 2 are also conveniently connected with each other, and when the arm head 12 and all the movable arms 13 retract to the right position, all the charging connectors 2 are mutually butted and electrically connected, and the power supply is used for charging the wireless communication device 3.

When the crane telescopic boom 1 needs to extend, generally, the movable boom 13 closest to the basic boom 11 extends forward first, so that the charging connectors 2 on the movable boom 13 and the charging connectors 2 on the basic boom 11 are separated from each other, when the crane telescopic boom 1 continues to extend forward, the other charging connectors 2 are separated from each other from back to front in sequence, and it needs to be noted that when the two charging connectors 2 are separated from each other, the wireless communication device 3 can be disconnected from charging.

The charging connecting pieces 2 are in butt electrical connection with each other, namely, the charging connecting pieces 2 are not connected by using cable wires, so that the risk of hanging up the cable is avoided when the crane works; the charging connector 2 has conductivity, and when all the charging connectors 2 are connected in an abutting manner, the charging connectors 2 are connected to form a wire, the wire is communicated with the power supply and the wireless communication device 3, and when the charging connector is charged, the power supply transmits electricity to the wireless communication device 3 through the guide formed by connecting the charging connectors 2, so that the charging operation of the wireless communication device 3 is realized.

In the charging connecting piece in the embodiment, the charging connecting pieces 2 arranged on the basic arm 11, the arm head 12 and the movable arms 13 of the telescopic arm 1 of the crane are matched with each other, so that the wireless communication device 3 can be connected with a power supply through the charging connecting pieces 2 which are electrically connected in sequence, and the power of the power supply is transmitted to a battery of the wireless communication device 3 through the charging connecting pieces 2, and the charging connecting piece is simple in structure and convenient to realize; the charging and disconnection charging operation of the wireless communication device 3 is realized by fully utilizing the retracting and extending operation characteristics of the crane telescopic arm 1, when the crane telescopic arm 1 is in a retracting state, the wireless communication device 3 is charged through the charging connecting pieces 2 which are sequentially and electrically connected, and when the crane telescopic arm 1 is in an extending state, the wireless communication device 3 is charged through the charging connecting pieces 2 which are mutually separated, so that the crane telescopic arm is suitable for large-scale popularization and application on a crane; and each charging connecting piece 2 is conflict electricity between each other and is connected, has saved cable wire connection, and this problem of interference of cable to hoist and mount work has not only been eliminated, also ensures that the hoist does not have the risk of cable hang-up at the during operation, greatly reduced cost of maintenance.

Optionally, as shown in fig. 1, fig. 2 and fig. 3, the charging connector 2 includes a connecting seat 21, the connecting seat 21 is in the front and back both sides wall of the extending direction of the telescopic arm 1 of the crane is respectively provided with a first connecting portion and a second connecting portion matched with the first connecting portion in shape, the first connecting portion is compared with the second connecting portion close to the arm head 12, when two adjacent charging connectors 2 are in conflict electrical connection, the first connecting portion of the charging connector 2 at the rear and the second connecting portion of the charging connector 2 in front are in conflict electrical connection.

The front-back direction is the telescopic direction of the telescopic arm 1 of the crane, and the shape matching means that the shape of the first connecting part is complementary to the shape of the second connecting part; in this embodiment, the number of the movable arms 13 is three, so that the number of the charging connecting pieces 2 is five, and the charging connecting pieces are respectively arranged on the basic arm 11, the arm head 12 and the three movable arms 13, when the crane telescopic arm 1 retracts, the five charging connecting pieces 2 approach to each other until the second connecting part of each charging connecting piece 2 positioned in front is in interference connection with the first connecting part of the charging connecting piece 2 positioned behind, and when the five charging connecting pieces 2 are in interference connection with each other, the electric energy of the power supply is transmitted to the battery of the wireless communication device 3 through the five charging connecting pieces 2, so as to realize charging; when the crane telescopic boom 1 extends out, at least two of the five charging connectors 2 are disconnected with each other, namely the wireless communication device 3 is disconnected with the power supply. The number of the movable arms 13 may be increased or decreased as necessary.

In the charging connecting piece in the embodiment, the first connecting part and the second connecting part which are matched in shape are arranged on the front side and the rear side of the connecting seat 21 of the charging connecting piece 2, so that the charging route of the wireless communication device 3 can be switched on and off by utilizing the retracting and extending operating characteristics of the crane telescopic arm 1, other additional auxiliary operations are not needed, and the convenience is realized; the charging device is not limited by the number of sections of the telescopic arm 1 of the crane, the purpose of charging the wireless communication device 3 can be achieved only by additionally arranging the charging connecting piece 2 on each section of the arm, and the charging device is suitable for large-scale popularization and application.

Optionally, as shown in fig. 1, the first connecting portion is a tapered pillar 22 protruding forward from a front side wall of the connecting seat 21, the second connecting portion is a tapered hole 23 recessed forward from a rear side wall of the connecting seat 21, and when the crane telescopic boom 1 is in the retracted state, an outer wall of the tapered pillar 22 of the charging connector 2 located on the rear side is in abutting electrical connection with an inner wall of the tapered hole 23 of the charging connector 2 located on the front side.

The minimum diameter (foremost position) of the tapered column 22 is smaller than the maximum diameter (rearmost position) of the tapered hole 23, but the minimum diameter of the tapered column 22 is larger than the minimum diameter (foremost position) of the tapered hole 23, so that the tapered column 22 can be conveniently and smoothly inserted into the tapered hole 23, and the tapered column 22 can be smoothly in interference connection with the inner wall of the tapered hole 23 after being inserted into the tapered hole 23.

The charging connecting piece in the embodiment is characterized in that the first connecting part and the second connecting part are respectively provided with the conical column 22 and the conical hole 23 which are matched in shape, the structure is simple and reliable, and the size precision requirement when the first connecting part and the second connecting part are matched with each other can be reduced by the conical shape, so that the front charging connecting piece 2 and the rear charging connecting piece 2 can be conducted with each other.

Optionally, as shown in fig. 1, the inner wall of the tapered hole 23 and/or the outer wall of the tapered column 22 has elasticity.

Wherein, be provided with the cushion that has electrically conductive function on the inner wall of bell mouth 23, conical column 22 wraps up the elastic sheet that has electrically conductive function outward, perhaps, whole charging connecting piece 2 is processed by the elastic material that has electrically conductive function.

In the charging connector in this embodiment, at least one of the inner wall of the tapered hole 23 and the tapered post 22 is designed to have an elastic structure, so that the tapered post 22 and the tapered hole 23 can be tightly attached to each other when being butted and electrically connected with each other, thereby ensuring the conductive efficiency of the charging device.

Optionally, as shown in fig. 1, the connection seat 21 is an L-shaped structure, the L-shaped structure includes a first body 211 and a second body 212 that are vertically connected to each other, the first connection portion is located at a front side of the first body 211, and the second connection portion is located at a rear side of the second body 212.

The first connecting part is preferably a tapered column 22, the second connecting part is preferably a tapered hole 23, and the tapered column 22 is located on the front side of the first body 211, which means that the tapered column 22 protrudes forwards and is arranged on the front side of the first body 211; the tapered hole 23 is located at the rear side of the second body 212, meaning that the tapered hole 23 is recessed forward from the rear side of the second body 212; the first body 211 and the second body 212 each have a certain width, thickness and length. In addition, the tapered pillar 22 may be disposed at the rear side of the first body 211, and the tapered hole 23 may be disposed at the front side of the second body 212.

In the charging connecting piece in the embodiment, the connecting seat 21 is designed into an L-shaped structure, so that when the crane telescopic boom 1 is in a retraction state, two adjacent charging connecting pieces 2 are connected and have a certain length, and connection charging can be smoothly realized under the condition that the front parts of all sections of booms are spaced at a certain distance when the movable boom 13 and the boom head 12 are retracted into the basic boom 11; and the tapered column 22 is disposed at the front side of the first body 211 of the L-shaped structure, and the tapered hole 23 is disposed at the rear side of the second body 212 of the L-shaped structure, so that the fixed mounting of the charging connector 2 is more convenient.

In other embodiments, referring to fig. 5, an L-shaped sliding rail 24 is disposed between the first body 211 and the second body 212, the L-shaped sliding rail 24 includes a first sliding rail 241 and a second sliding rail 242 that are vertically connected to each other, the first body 211 is provided with a first sliding slot that is engaged with the first sliding rail 241, and the second body 212 is provided with a second sliding slot that is engaged with the second sliding rail 242.

The L-shaped slide rail 24 can be clamped at any position relative to the first body 211 and the second body 212, for example, saw teeth matched with each other are arranged on the L-shaped slide rail 24, the first slide groove of the first body 211 and the second slide groove of the second body 212, so that the charging connecting member 2 can be extended inward and extended backward, the inward refers to a position on the charging connecting member 2 closer to the central axis of the basic arm 11; specifically, the charging connector 2 can be smoothly installed when the inward extension of the charging connector 2 meets the requirement of different distances between the arms in the inward and outward directions, because the arms are sleeved with each other and have a certain distance in the inward and outward directions, and the distances may be different; the extension of the charging connector 2 to the rear side is to satisfy the requirement that the charging connector 2 can be smoothly installed under the condition that the distances between the arms in the front-rear direction are different, because after the arms are sleeved with each other, a certain distance is reserved in the front of each arm, and the distances may be different.

In the charging connector in this embodiment, the L-shaped sliding rail 24 is additionally arranged between the first body 211 and the second body 212, and the sliding grooves matched with the L-shaped sliding rail 24 are respectively formed in the first body 211 and the second body 212, so that the connecting seat can be adjustable in length in two directions, and the application range of the charging connector 2 is wider.

Optionally, as shown in fig. 3 and 4, the inner wall of the right-angle surface of the connecting seat is connected to the crane telescopic boom 1, and the first connecting portion of each charging connecting member 2 is located on one side of the second connecting portion, which is close to the crane telescopic boom.

The first connecting part is preferably a conical column 22, the second connecting part is preferably a conical hole 23, and the side close to the telescopic arm of the crane refers to the position, closer to the central axis of the basic arm 11, on the charging connecting part 2; when the telescopic arm 1 of the crane is in a retraction state, the charging device is integrally arranged from front to back and from high to low in a step shape, and the arrangement shape of the charging device is just matched with the external shape of each section of arm on the telescopic arm 1 of the crane after the section of arm retracts to the basic arm 11; the connecting seat of the charging connecting piece 2 is arranged at the edge position of the front part of each section of arm, so that one side arm of the connecting seat is just attached to the outer wall of the arm; the section of the crane telescopic arm 1 in the vertical direction is a square surface, and the inner wall of the right-angle surface of the connecting seat is connected with the outer wall surface where one side of the square surface is located; the protruding conical column 22 is aligned with the telescopic direction, and does not interfere with the telescopic operation of the telescopic arm 1 of the crane.

The connecting piece that charges in this embodiment is connected the inner wall of the right angle face of connecting seat and the flexible arm 1 of hoist, and sets up the toper post 22 of connecting piece 2 that charges in the inboard of bell mouth 23 for charging device's overall structure can match with the appearance structure of the flexible arm 1 of hoist when the flexible arm 1 of hoist is in the state of withdrawing, makes charging device install 1 back structure of the flexible arm of hoist compacter and reliable.

Optionally, as shown in fig. 3 and 4, the connection seat 21 is magnetically connected with the crane telescopic arm 1.

Wherein, the flexible arm 1 of hoist generally is made for steel material, sets up magnet on the inner wall of the right-angle face of connecting seat 21, just can carry out magnetic connection with flexible arm 1 of hoist with charging connector 2.

The connecting piece that charges in this embodiment, with the structure of being connected for magnetism of design between connecting seat 21 and the flexible arm 1 of hoist, the installation and the dismantlement of connecting piece 2 conveniently charge, the increase and decrease of the movable arm 13 festival number of being convenient for can increase and need not to carry out under the condition of structural design in addition to movable arm 13, just can be with charging connecting piece 2 through the mode snap-on of magnetism connection to the arm, reform transform with low costs, be suitable for popularization and application on a large scale.

Another embodiment of the invention provides a charging device, which comprises a plurality of charging connecting pieces as described above, wherein the plurality of charging connecting pieces 2 are sequentially arranged in the extending direction of the crane telescopic boom 1, and when the crane telescopic boom 1 is in a retracting state, all the charging connecting pieces 2 are sequentially abutted and electrically connected.

Another embodiment of the present invention provides a charging method based on the charging device, where the charging method includes the following steps:

when the crane telescopic boom 1 is in a retraction state, the charging connecting pieces 2 respectively arranged on the basic boom 11, the movable boom 13 and the boom head 12 of the crane telescopic boom 1 are sequentially butted and electrically connected with each other, so that the charging of the wireless communication device 3 is realized;

when the crane telescopic boom 1 is in an extending state, at least two charging connecting pieces 2 are separated from each other, and disconnection charging of the wireless communication device 3 is realized. It should be noted that, when the telescopic boom 1 of the crane works, the extending lengths may be different, but as long as the movable boom 13 or the boom head 12 extends forward from the inside of the base boom 11, the two charging connectors 2 are separated from each other, so that the charging device is disconnected, and the disconnection charging of the wireless communication device 3 is realized.

Another embodiment of the present invention provides a crane, including the charging device as described above.

In the crane in the embodiment, the charging connecting pieces 2 arranged on the basic arm 11, the arm head 12 and the movable arms 13 of the telescopic arm 1 of the crane are matched with each other, so that the wireless communication device 3 can be connected with a power supply through the charging connecting pieces 2 which are electrically connected in sequence, and the power of the power supply is transmitted to a battery of the wireless communication device 3 through the charging connecting pieces 2, and the crane is simple in structure and convenient to implement; the charging and disconnection charging operation of the wireless communication device 3 is realized by fully utilizing the retracting and extending operation characteristics of the crane telescopic arm 1, when the crane telescopic arm 1 is in a retracting state, the wireless communication device 3 is charged through the charging connecting pieces 2 which are sequentially and electrically connected, and when the crane telescopic arm 1 is in an extending state, the wireless communication device 3 is charged through the charging connecting pieces 2 which are mutually separated, so that the crane telescopic arm is suitable for large-scale popularization and application on a crane; and each charging connecting piece 2 is conflict electricity between each other and is connected, has saved cable wire connection, and this problem of interference of cable to hoist and mount work has not only been eliminated, also ensures that the hoist does not have the risk of cable hang-up at the during operation, greatly reduced cost of maintenance.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. A charging connecting piece is suitable for being installed on a crane telescopic arm (1), the crane telescopic arm (1) comprises a basic arm (11), an arm head (12) and a plurality of movable arms (13) sequentially sleeved between the basic arm (11) and the arm head (12), the charging connecting piece (2) is installed on at least the basic arm (11) and the arm head (12), the charging connecting piece (2) on the basic arm (11) is suitable for being electrically connected with a power supply, and the charging connecting piece (2) on the arm head (12) is suitable for being electrically connected with a wireless communication device (3); when the crane telescopic arm (1) is in a retraction state, all the charging connecting pieces (2) are sequentially abutted and electrically connected;

the charging connecting piece (2) comprises a connecting seat (21), a first connecting part and a second connecting part are respectively arranged on the front side wall and the rear side wall of the connecting seat (21) in the extending direction of the telescopic arm (1) of the crane, the first connecting part is arranged close to the arm head (12) compared with the second connecting part, and the first connecting part and the second connecting part of the connecting seat (21) are suitable for abutting electric connection;

the connecting seat (21) is of an L-shaped structure, the connecting seat (21) comprises a first body (211) and a second body (212) which are vertically connected with each other, the first connecting part is positioned on the front side of the first body (211), and the second connecting part is positioned on the rear side of the second body (212);

an L-shaped sliding rail (24) is arranged between the first body (211) and the second body (212), the L-shaped sliding rail (24) comprises a first sliding rail (241) and a second sliding rail (242) which are vertically connected with each other, the first body (211) is provided with a first sliding groove matched with the first sliding rail (241), and the second body (212) is provided with a second sliding groove matched with the second sliding rail (242);

the inner wall of the right-angle surface of the connecting seat (21) is connected with the crane telescopic arm (1), and the first connecting part of the charging connecting piece (2) is located on one side, close to the crane telescopic arm (1), of the second connecting part.

2. The charging connector of claim 1, wherein the shape of the first connection portion and the shape of the second connection portion match each other.

3. The charging connector according to claim 2, wherein the first connecting portion is a tapered post (22) protruding forward from a front side wall of the connecting base (21), and the second connecting portion is a tapered hole (23) recessed forward from a rear side wall of the connecting base (21).

4. Charging connection according to claim 3, characterized in that the inner wall of the conical hole (23) and/or the outer wall of the conical post (22) is elastic.

5. Charging connection according to claim 2, characterized in that the connection socket (21) is magnetically connected with the crane telescopic boom (1).

6. A charging device, comprising a plurality of charging connectors according to any one of claims 1 to 5, wherein the plurality of charging connectors (2) are sequentially arranged in the extending direction of the crane telescopic boom (1), and when the crane telescopic boom (1) is in the retracting state, all the charging connectors (2) are sequentially abutted against and electrically connected.

7. A charging method based on the charging device of claim 6, comprising the steps of:

when the crane telescopic boom (1) is in a retraction state, all the charging connecting pieces (2) are sequentially abutted against each other and electrically connected to realize the charging of the wireless communication device (3);

when the crane telescopic arm (1) is in an extending state, at least two charging connecting pieces (2) are mutually separated.

8. A crane, comprising a charging device as claimed in claim 6.