Folding device, charging bow and charging system
Technical field
The utility model, which belongs to, fills pantograph field more particularly to a kind of folding device, charging bow and charging system.
Background technique
Currently, charging bow is completed to fill the descending operation of pantograph often through folding device.
A kind of single arm pantograph is disclosed in Chinese utility model patent CN207257424U, by pedestal, I-shaped bracket, U
Type bracket, bow component, electric cylinder, short connecting rod, long connecting rod and control system box form;Described pedestal one end is equipped with electronic
Cylinder, the other end be equipped with connection sheet, I-shaped cantilever tip by connection sheet flexible connection on the base, I-shaped bracket tail end with it is U-shaped
Bracket is flexibly connected, and the end of u-bracket is connected with bow component;Work is additionally provided between the pedestal and u-bracket
It is dynamic to be connected with short connecting rod;Long connecting rod is connected between the I-shaped bracket and bow component;The electric cylinder it is defeated
Rod is connect with I-shaped cantilever tip, and control system box is fixed on the base, and control system is equipped in control system box;Pass through control
System processed gives electric cylinder motion command, promotion, and/pull-up I-shaped bracket simultaneously drives u-bracket and bow component to decline/packs up.
In above-mentioned patent in folding device, u-bracket is used, structure is relative complex, and technique and material cost are higher,
Its mounting means is relatively more fixed simultaneously, is only applicable to single installation environment.
Utility model content
The utility model for above-mentioned at high cost and mounting means monotechnics problem, propose a kind of structure it is simple, it is low at
Sheet and folding device flexible for installation, charging bow and charging system.
In order to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of folding device completes the first connecting rod of rotation including connecting with driving device, and described first can be followed to connect
The second connecting rod of bar rotation, and can be used to install the third connecting rod of the first connecting rod and the second connecting rod;The third
Connecting rod is rotatablely connected with the first connecting rod and the second connecting rod respectively;The installation of the first connecting rod and the second connecting rod
Position is in the same end of the third connecting rod;The first connecting rod is provided with the first fixed knot far from one end of the third connecting rod
Structure, the second connecting rod are provided with the second fixed structure far from one end of third connecting rod;The third connecting rod is far from described first
Connecting rod one end is provided with connection structure.
Preferably, the installation site of the first connecting rod is located at the second connecting rod installation site and the third connecting rod
Between central axes.
Preferably, be fixedly installed with the first rotating bracket on the third connecting rod, first rotating bracket with it is described
First connecting rod rotation connection.
Preferably, be fixedly installed with second rotating bracket on the third connecting rod, second rotating bracket with
The second connecting rod rotation connection.
Preferably, the first connecting rod, the second connecting rod and the third connecting rod are using in round tube or rectangular tube
Any one.
Preferably, the first connecting rod, the second connecting rod and the third connecting rod are using in solid tubes or hollow pipe
Any one.
Preferably, including foldable structure described in any of the above one, it can be used to drive the driving of the foldable structure
Device and bow component;The bow component is connect with the connection structure, the driving device and first fixed knot
Structure connection.
A kind of charging bow, it is characterised in that: bend including charging recited above, and with the charging bow cooperation by electricity
Bow.
Compared with prior art, it the advantages of the utility model and has the active effect that using linear type link mechanism, letter
The structure for having changed folding device, effectively reduces cost;The folding device small volume, connection type is simple, multiple foldings
Device can be used cooperatively, and can carry out independent maintenance to single folding device, and mounting means is flexible, and maintenance is convenient.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model folding device;
Fig. 2 is the structural schematic diagram of the utility model charging bow.
In upper figure: 1 is first connecting rod;11 be first fixed structure;2 be second connecting rod;21 be the second fixed structure;3 are
Third connecting rod;31 be the first rotating bracket;32 be the second rotating bracket;33 be connection structure, and 4 be driving device;5 be bow group
Part.
Specific embodiment
In the following, the utility model is specifically described by illustrative embodiment.It should be appreciated, however, that not having
In the case where being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated into other implementations
In mode.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The utility model devises one kind and fills pantograph folding device, including first connecting rod 1, second connecting rod 2, third connecting rod
3, first fixed structure 11, the second fixed structure 21.
As shown in Figure 1, third connecting rod 3 is linear structure, third connecting rod 3 is fixedly installed with the first rotating bracket 31 and the
Two rotating brackets 32.First rotating bracket, 31 one end is fixedly mounted on one end of third connecting rod 3,31 other end of the first rotating bracket
It is formed and is rotatablely connected with first connecting rod 1.Second rotating bracket 32 is fixedly mounted on third connecting rod 3, the second rotating bracket 32 peace
Holding position is ipsilateral 31 installation site of the first rotating bracket, and the first rotating bracket 31 is located at the second rotating bracket and third connecting rod
Between 3 central axes.Third connecting rod 3 is directly provided with the connection that can be used to install far from the first rotating bracket 31 and the second rotation
Structure 33.
First connecting rod 1 is provided with first fixed structure 11 far from 3 one end of third connecting rod, and first fixed structure 11 is cylindricality,
First fixed structure 11 is vertical with first connecting rod 1 to be connect.Second connecting rod 2 is provided with the second fixed knot far from 3 one end of third connecting rod
Structure 21, the second fixed structure 21 are cylindricality, and the second fixed structure 21 is vertical with second connecting rod 2 to be connect.
When filling the installation of pantograph folding device, first fixed structure 11 and the second fixed structure 21 are fixedly mounted on corresponding branch
On frame, after installation, the spacing between first fixed structure 11 and the second fixed structure 21 is remained unchanged.Wherein, the first fixed knot
Structure 11 is connect with driving device 4, and driving device 4 realizes first connecting rod 1 using 11 axis of first fixed structure as central axis.First
The rotation of connecting rod 1 drives third connecting rod 3 to be subjected to displacement by the first rotating bracket 31, direction of displacement and 1 rotation direction of first connecting rod
Unanimously, the displacement of third connecting rod 3 drives second connecting rod 2 to rotate.2 rotation direction of second connecting rod is consistent with 1 rotation direction of first connecting rod,
Second connecting rod 2 is using 21 axis of the second fixed structure as central axis.When folding device works, 2 edge of first connecting rod 1 and second connecting rod
Same direction rotation, folding device are completed to fold or be stretched.
The installation site of first rotating bracket 31 and the second rotating bracket 32 on third connecting rod 3 keeps certain spacing,
When first connecting rod 1 and second connecting rod 2 rotate, third connecting rod 3 follows rotation, and third connecting rod 3 carries out simultaneously in addition to circumferential rotation
Radial translation, the circumferential and radial movement of third connecting rod 3 effectively increase folding device folding and flexible range and
Flexibility keeps folding device more smooth in the process for folding and stretching.
First connecting rod 1, second connecting rod 2 and third connecting rod 3 can be using any one in round tube, rectangular tube in the application
Kind, above-mentioned can use solid tubes or hollow pipe according to specifically used scene.Wherein, hollow pipe profile or similar processing
Part is not limited to form such as rectangular tube, round tube.
In the prior art, U-shaped structure is mostly used to be rotatablely connected the third connecting rod 3 of first connecting rod 1 and second connecting rod 2,
This structural volume is larger, structure is complicated, is unfavorable for the installation of folding device and reduces cost.
A kind of charging bow, charging bow use above-mentioned foldable structure, further include driving device 4 and bow component 5.Driving dress
It sets 4 to connect with first fixed structure 11 in above-mentioned foldable structure, driving device 4 realizes the rotation of first connecting rod.In folding device
Third connecting rod 3 is connect with bow component 5, and the installation of folding device, mounting means spirit are only just completed by a connection structure 33
It is living, it can be used cooperatively according to concrete scene using multiple folding devices, increase can be independent while filling pantograph stability
One of folding device is repaired and replaced, the cost of overhaul for filling pantograph product can be effectively reduced.Existing skill
U-shaped structure in art in folding device is at least corresponding there are two connection structure, and mounting means is fixed, and applicability is poor;And it is U-shaped
The folding device of structure is more complicated with respect to the application structure, at high cost.
A kind of charging system, including charging recited above bow, and the pantograph with charging bow cooperation.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.