The content of the invention
It is a primary object of the present invention to provide a kind of piggyback transport car, to solve piggyback transport car structure in the prior art
Complexity, the problem of cost is high.
To achieve these goals, included according to a kind of piggyback transport car provided by the invention, piggyback transport car:End fills
Put, support meanss and loading attachment, end fitting include end underframe and slide unit, slideway, loading attachment are provided with slide unit
It is arranged between end fitting and support meanss, loading attachment has the portion that is slidably matched coordinated with slideway, and loading attachment includes
Loading frame and the loading frame lowering or hoisting gear for lifting loading frame, first end and the end underframe of loading frame are detachably connected,
Second end of loading frame is supported in support meanss and the second end of loading frame can rotate around support meanss, loading frame lifting
Device and loading frame drive connection, the first end of loading frame by loading frame lowering or hoisting gear are down to ground after being separated with end underframe
Face.
Further, piggyback transport car also includes:Pivot driver device, coordinate with loading frame, the driving of pivot driver device
Loading frame is rotated so that the first end of loading frame can be slided along slideway around support meanss.
Further, end fitting and loading attachment are two, support meanss be one, one of end fitting with
One of loading attachment forms the first car, and another end fitting and another loading attachment form the second car, the first car and
Second car forms transport trainset, and support meanss are arranged between the first car and the second car, and transport trainset also includes joint connector,
Joint connector is arranged in support meanss, and the first car and the second car are movably connected by joint connector, the first car
Second end of loading frame and the second end of the loading frame of the second car can rotate around joint connector.
Further, slide unit includes:Mobile Slide, Mobile Slide are movably disposed in end underframe, Mobile Slide
With outer pendulum position and recovery position;Fixed slide unit, when Mobile Slide is in outer pendulum position, fixed slide unit and Mobile Slide
It is collectively forming slideway.
Further, Mobile Slide is two, and two Mobile Slides are separately positioned on the both sides of end underframe.
Further, Mobile Slide includes having hub switch side and outer in the Mobile Slide body of beam-like, Mobile Slide body
End is put, outer pendulum end is provided with Mobile Slide support meanss.
Further, end fitting also includes being used for the loading holder locking apparatus for connecting end underframe and loading frame, sets
In end underframe, and positioned at one end that end underframe connects towards loading frame, loading holder locking apparatus has the first solution lock-bit
Put with the first latched position, when load holder locking apparatus be in released state when, loading frame and end underframe are separated from each other, and work as dress
When carrier locking device is in the lock state, end underframe and loading frame are connected with each other.
Further, end fitting also includes being used for the Mobile Slide locking device for connecting end underframe and Mobile Slide,
Mobile Slide locking device is rotatably arranged in end underframe, and Mobile Slide locking device has the second unlocked position and the
Two latched positions, when Mobile Slide locking device is in the second unlocked position, Mobile Slide can opposed end chassis movement, when
When Mobile Slide locking device is in the second latched position, Mobile Slide is fixed in end underframe.
Further, end underframe includes:The longitudinal spacing portion vertically moved for limiting loading frame.
Further, end underframe includes:For limiting the cross spacing portion of loading frame transverse shifting.
Further, piggyback transport car also includes:End underframe support meanss, it is disposed movably in a vertical direction to hold
The lower section of portion's chassis, end underframe support meanss have the Support Position of supporting base end portion chassis, with loading frame opposed end bottom
Supporting base end portion chassis when frame moves.
Further, piggyback transport car also includes Mobile Slide drive device, and Mobile Slide is driven by Mobile Slide and filled
Put and swung;End underframe support meanss include Mobile Slide drive device bearing, are arranged in end underframe support meanss,
One end of Mobile Slide drive device is connected with Mobile Slide drive device bearing, and the second end of Mobile Slide drive device is with moving
Dynamic slide unit connection, when end underframe support meanss drop to precalculated position, Mobile Slide drive device driving Mobile Slide pendulum
It is dynamic.
Further, pivot driver device is arranged in end underframe.
Further, pivot driver device includes:Actuating unit;Executing agency, executing agency are driven by actuating unit, hold
Row mechanism drives loading frame to be rotated around support meanss.
Further, loading frame includes:Loading frame body;For limiting longitudinal auxiliary section of loading frame length travel, if
Put on loading frame body close to one end of end underframe.
Further, loading frame also includes:For limiting the horizontal auxiliary section of loading frame lateral displacement, loading frame is arranged on
Close to one end of end underframe on body.
Further, bow-backed transport vehicle also includes:The loading stopping means moved for limiting goods on loading frame, if
Put on loading frame.
Further, loading frame lowering or hoisting gear includes:Loading frame lowering or hoisting gear body, is movably disposed at loading frame
On;For moving the move portion of loading frame, it is arranged on loading frame lowering or hoisting gear body, loading frame is slided by move portion along slideway
Dynamic, move portion forms the portion that is slidably matched.
Further, loading frame lowering or hoisting gear also includes:For lifting the lifting unit of loading frame, loading frame lifting is arranged on
On device body, one end of lifting unit is connected with loading frame, and lifting unit is used as the strong point by move portion and loading frame is risen
Drop.
Further, in the horizontal direction, there is preset distance between lifting unit and move portion.
Further, the lifting unit bearing coordinated with lifting unit is provided with loading frame, lifting unit bearing is along loading frame sheet
Body upwardly extends to be formed, and lifting unit is connected to the top of lifting unit bearing.
Further, pivot driver device also includes:Transmission mechanism, it is arranged between actuating unit and executing agency.
Further, transmission mechanism is chain-wheel mechanism.
Further, chain-wheel mechanism includes the first chain wheel set and the second chain wheel set arranged in parallel, the first chain wheel set
Include with the second chain wheel set:Driving wheel, it is connected with the output end of actuating unit;Multiple driven pulleys;Chain, with driving wheel and
Multiple driven pulley connections, executing agency are arranged on chain.
Further, end underframe includes end underframe body, and end underframe body includes:Two relative to be arranged in parallel
End beam;Draw beam, it is arranged between two end beams;Two curb girders, two curb girders are arranged on two corresponding to two end beams
Between end;Sleeper beam, it is connected between draw beam and curb girder.
Further, end underframe support meanss include:Bottom plate for supporting base end portion chassis;For driving bottom plate to move
Bottom plate lift mechanism, one end of bottom plate lift mechanism is connected with bottom plate, and the other end and the end underframe of bottom plate lift mechanism connect
Connect.
Further, end underframe support meanss also include:Guide sleeve, it is vertically situated on bottom plate, bottom plate lift
Structure is arranged in guide sleeve.
Further, Mobile Slide locking device includes:Locking mechanism, locking mechanism include:Spacing supporting plate, spacing supporting plate
Middle part is hinged in end underframe, and the first end of spacing supporting plate forms sticking department;Operating mechanism, the first end and limit of operating mechanism
Second end of position supporting plate is hinged, and operating mechanism also has the abutting part coordinated with the supporting part being arranged in end underframe.
Further, operating mechanism includes:Action bars, including operation handle and connector, abutting part are formed in manipulator
On handle, connector is articulated with the first pin joint with end underframe;Pull bar, the first end of pull bar form the first end of operating mechanism simultaneously
It is hinged with the second end of spacing supporting plate, the second end of pull bar and connector are articulated with the second pin joint, and the second pin joint is positioned at the
One end of the remote operation handle of one pin joint.
Further, Mobile Slide locking device also includes:Rod bearing is connected, is arranged in end underframe;Connecting rod, can
It is rotatably arranged in connection rod bearing, the both ends of connecting rod are fixedly connected with two locking mechanisms respectively.
Further, loading holder locking apparatus includes:Two fixed seats and two lock pieces, one of fixed seat and its
In lock piece form the first lock assembly, another fixed seat and another lock piece form the second lock assembly, first
Lock assembly and the second lock assembly link, so that the first lock assembly and the second lock assembly are co-located on lock-out state or solution
Lock status.
Further, the first lock assembly and/or the second lock assembly are leverage.
Further, loading holder locking apparatus also includes cylinder lever connecting rod;First lock assembly is leverage, the first locking
Component also includes the first push rod and the first lever, and the first end of the first lever and the end of the first push rod are hinged, the first lever
Second end is connected with the first end of the lock piece of the first lock assembly;Second lock assembly is leverage, the second lock assembly
Also including the second push rod and the second lever, the first end of the second lever is connected with the end of the second push rod, and the second of the second lever
End is connected with the first end of the lock piece of the second lock assembly;Wherein, the first end of cylinder lever connecting rod and the first end of the first lever
It is connected, the second end of cylinder lever connecting rod is connected with the lock piece of the second lock assembly;Or one end of cylinder lever connecting rod and the second lever
First end be connected, the second end of cylinder lever connecting rod is connected with the lock piece of the first lock assembly.
The technical scheme provided using the present embodiment, end fitting and support meanss are set in piggyback transport car, can be right
Loading attachment is supported, wherein, first end and the end underframe of loading frame are detachably connected, and the second end of loading frame is rotatable
Ground is arranged in support meanss.When piggyback transport car loads goods, drive loading frame to be slided along slideway by drive device, make
Loading frame rotates, so that the first end exposing track of loading frame.After rotation terminates, by loading frame lowering or hoisting gear by loading frame
First end be down to ground, can so realize and directly drive semitrailer in loading frame into.After goods enters loading frame, pass through
Loading frame is risen to precalculated position by loading frame lowering or hoisting gear, then drives loading frame to turn round by drive device, and with end bottom
Frame is corresponding, loading frame is connected with end underframe, you can complete overall loading process.The back of the body is carried on the back by what the present embodiment provided
Transport vehicle, goods can be facilitated to load, the apparatus structure is simple and convenient to operate.The piggyback transport car of the present embodiment can be used in
The highway railway combined transport of the vehicle such as highway vehicle or semitrailer, substantially increases railway transport capacity.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Fig. 1 to Fig. 5 and Figure 22, the present embodiment piggyback transport car includes:End fitting, support meanss 5-100,
Loading attachment and pivot driver device 6-100.Wherein, end fitting includes end underframe 1-100, end underframe 1-100 tools
There is slide unit, slideway is provided with slide unit.Support meanss 5-100 is arranged on one end of end fitting, and loading attachment is arranged on end
Between device and support meanss 5-100.Loading attachment has the portion that is slidably matched coordinated with slideway, and loading attachment includes loading frame
2-100 and the first end of loading frame lowering or hoisting gear 2-200, loading frame 2-100 for lifting loading frame 2-100 and end bottom
Frame 1-100 is detachably connected, loading frame 2-100 the second end be supported on support meanss 5-100 and loading frame 2-100
Two ends can rotate around support meanss 5-100, loading frame lowering or hoisting gear 2-200 and loading frame 2-100 drive connections, loading frame 2-
100 first end by loading frame lowering or hoisting gear 2-200 is down to ground after being separated with end underframe 1-100.Pivot driver device
6-100 and loading frame 2-100 coordinates, and drives loading frame 2-100 to turn around support meanss 5-100 by pivot driver device 6-100
Move so that loading frame 2-100 first end can be slided along slideway.
The technical scheme provided using the present embodiment, end fitting and support meanss 5-100 are set in transport trainset, can
Loading attachment is supported, wherein, loading frame 2-100 first end and end underframe 1-100 are detachably connected, loading frame 2-
100 the second end is rotatably arranged on support meanss 5-100.When transport trainset loads goods, driven by drive device
Dynamic loading frame 2-100 slides along slideway, rotates loading frame 2-100, so that loading frame 2-100 first end exposing track.Treat
After rotation terminates, loading frame 2-100 first end is down to by ground by loading frame lowering or hoisting gear 2-200, can so be realized
Semitrailer is directly driven into loading frame 2-100.After goods enters loading frame 2-100, pass through loading frame lowering or hoisting gear 2-200
Loading frame 2-100 is risen into precalculated position, then loading frame 2-100 revolutions are driven by drive device, and with end underframe 1-
100 is corresponding, loading frame 2-100 is connected with end underframe 1-100, you can complete overall loading process.By this implementation
The piggyback transport car that example provides, can facilitate goods to load, the apparatus structure is simple and convenient to operate.Carrying on the back for the present embodiment is unlucky
Defeated car can be used in the highway railway combined transport of the vehicles such as highway vehicle or semitrailer, substantially increase railway transport capacity.
In embodiment provided by the invention, end fitting and loading attachment are two, and support meanss 5-100 is one
Individual, one of end fitting forms the first car with one of loading attachment, and another end fitting fills with another loading
The second car of composition is put, support meanss 5-100 is arranged between the first car and the second car, and transport trainset also includes joint connector 7-
100, joint connector 7-100 is arranged on support meanss 5-100, and the first car and the second car can by joint connector 7-100
It is movably connected with, the second end of the loading attachment of the first car and the second car can rotate around joint connector.Using above-mentioned two
The structure of car group make it that transport trainset is more flexible in marshalling.
The various pieces of the piggyback transport car of two car groups of the present embodiment are described in detail below with reference to accompanying drawing.
First, the concrete structure of the Mobile Slide of end fitting
As shown in Figure 6 and Figure 7, Mobile Slide 1-210 is movably disposed on end underframe 1-100, Mobile Slide 1-
210 have outer pendulum position and recovery position, and end underframe 1-100 has fixed slide unit 1-220, at Mobile Slide 1-210
When outer pendulum position, fixed slide unit 1-220 and Mobile Slide 1-210 is collectively forming slideway.So can be with loading frame 2-100
Slideway is that the strong point is lifted or pivoted.
Wherein, moved for the ease of loading frame 2-100, Mobile Slide 1-210 is arranged to two, two Mobile Slide 1-
210 are separately positioned on end underframe body 1-110 both sides.
Specifically, Mobile Slide 1-210 includes the Mobile Slide body 1-211, Mobile Slide body 1-211 in beam-like
With hub switch side 1-211a and outer pendulum end 1-211b, also, put outside on the 1-211b of end and be provided with Mobile Slide support meanss.It is sliding
Platform support meanss are preferably support cylinder.Mobile Slide body 1-211 can so be carried out by Mobile Slide support meanss
Support.
Wherein, Mobile Slide 1-210 also includes upper cover plate 1-212 and lower cover 1-214, and upper cover plate 1-212 is arranged on shifting
Dynamic slide unit body 1-211 upper surface, upper cover plate 1-212 are collectively forming the slideway with fixed slide unit 1-220.Lower cover 1-
214 relative upper cover plate 1-212 are arranged on Mobile Slide body 1-211 lower surface.
Mobile Slide 1-210 also includes gusset 1-215, and gusset 1-215 is arranged on Mobile Slide body 1-211, and position
Between upper cover plate 1-212 and lower cover 1-214.By gusset 1-215 to strengthen Mobile Slide 1-210 support strength.
Mobile Slide 1-210 also includes being used for the cylinder support 1-213 for connecting Mobile Slide drive device, the cylinder support
1-213 is arranged on Mobile Slide body 1-211.Wherein, the drive end of Mobile Slide drive device and cylinder support 1-213 phases
Even, rotated by Mobile Slide drive device drive cylinder bearing 1-213 around hub switch side 1-211a, to realize Mobile Slide body
1-211 rotation.
Specifically, Mobile Slide 1-210 also includes mounting part 1-216, in order to fixed Mobile Slide 1-210.
2nd, other structures of the end fitting in addition to Mobile Slide
As shown in Fig. 8 and Figure 34, end underframe 1-100 includes end underframe body 1-110.End fitting also includes dress
Carrier locking device 1-300, loading holder locking apparatus 1-300 are arranged on end underframe body 1-110, and are located at end bottom
For frame body 1-110 towards one end of loading frame 2-100 connections, loading holder locking apparatus 1-300 has the first unlocked position and the
One latched position, when loading holder locking apparatus 1-300 is in released state, loading frame 2-100 and end underframe body 1-110
It is separated from each other, when loading holder locking apparatus 1-300 is in the lock state, end underframe body 1-110 and loading frame 2-100 phases
Connect.The apparatus structure is simple, is easy to staff to control end underframe body 1-110 to connect and divide with loading frame 2-100
From.
As shown in figure 29, loading holder locking apparatus 1-300 includes:Two fixed seat 9-110 and two lock piece 9-
120a、9-120b.One of fixed seat 9-110 and one of lock piece 9-120a forms the first lock assembly, another
Fixed seat 9-110 and another lock piece 9-120b forms the second lock assembly, and the first lock assembly and the second lock assembly join
It is dynamic, so that the first lock assembly and the second lock assembly are co-located on lock-out state or released state.
In the present embodiment, loading frame is locked or unlocked by the first lock assembly and the second lock assembly, with reality
The now connection between loading frame and end underframe separates.Wherein, the first lock assembly and the second lock assembly are linkage structure,
So that staff is simultaneously right by manipulating i.e. achievable first lock assembly of one of lock assembly and the second lock assembly
Loading frame is locked or unlocked.The present embodiment is the locking or unblock of achievable loading frame by simple lockable mechanism, and is somebody's turn to do
Device is easy to operate, disclosure satisfy that the connection requirement of rail transporter.
Wherein, it is leverage by the first lock assembly and/or the second lock assembly in order to simplify structure.
Specifically, locking device also includes cylinder lever connecting rod 9-130, when the first lock assembly and the second lock assembly are thick stick
During linkage, the first lock assembly also includes the first push rod 9-210 and the first lever 9-220, the first lever 9-220 first end
It is hinged with the first push rod 9-210 end, the first lever 9-220 the second end is with the lock piece 9-120a's of the first lock assembly
First end connects.Second lock assembly also includes the second push rod 9-310 and the second lever 9-320, and the first of the second lever 9-320
End is connected with the second push rod 9-310 end, the second lever 9-320 the second end and the lock piece 9-120b of the second lock assembly
First end connection.Wherein, cylinder lever connecting rod 9-130 first end is connected with the first lever 9-220 first end, cylinder lever connecting rod 9-
130 the second end is connected with the lock piece 9-120b of the second lock assembly;Or cylinder lever connecting rod 9-130 one end and the second thick stick
Bar 9-320 first end is connected, and cylinder lever connecting rod 9-130 the second end is connected with the lock piece 9-120a of the first lock assembly.Such as
This can drive two lock pieces 9-120a, 9-120b to be locked or unlocked when operating any one push rod, greatly convenient
Staff is operated.
Wherein, the first lock assembly and the second lock assembly are arranged at intervals, also, the first lock assembly and the second locking group
Part is symmetrical arranged.So that the first lock assembly and the second lock assembly uniform stressed in lock-out state.
In order to facilitate installation, the first push rod 9-210 and the first lock assembly lock piece 9-120a are respectively positioned on the first thick stick
The lock piece 9-120b of bar 9-220 homonymy, the second push rod 9-310 and the second lock assembly is respectively positioned on the second lever 9-320's
Homonymy.
Operated for the ease of staff, specifically, by the first push rod 9-210 and the lock piece of the first lock assembly
9-120a is arranged on the first lever 9-220 outside, the lock piece 9-120b settings of the second push rod 9-310 and the second lock assembly
In the second lever 9-320 outside.
Wherein, locking device also includes:First in command 9-230 and second in command 9-330.Wherein, by first in command 9-230
It is arranged on the first push rod 9-210, second in command 9-330 is arranged on the second push rod 9-310.
In order to consolidate support, the locking device also includes:For be oriented to the first push rod 9-210 the first bearing 9-240 with
And for being oriented to the second push rod 9-310 the second bearing 9-340.Wherein, the first push rod 9-210 is movably disposed at first
In seat 9-240, the second push rod 9-310 is movably disposed in the second bearing 9-340.
Wherein, the first lock assembly and the second lock assembly also include:First limit assembly 9-410, including two first
Limiting plate, two the first limiting plates are spaced apart and arranged on the first push rod 9-210, and two the first limiting plates are located at the first bearing
9-240 both sides;Second limit assembly 9-420, including two the second limiting plates, two the second limiting plates are spaced apart and arranged in
On two push rod 9-310, and two the second limiting plates are located at the second bearing 9-340 both sides.By the first limit assembly 9-410 and
Second limit assembly 9-420 is to limit the first push rod 9-210 and the second push rod 9-310 displacement.
For the ease of locking, the locking device also includes:First baffle 9-250 and second baffle 9-350.Wherein, first
The lock piece 9-120a of baffle plate 9-250 and the first lock assembly the second end is arranged at intervals, second baffle 9-350 and the second locking
The lock piece 9-120b of component the second end is arranged at intervals.
Wherein, end underframe 1-100 also includes being used to guide the leading truck 1- that Mobile Slide 1-210 is vertically moved
120, it is arranged on end underframe body 1-110 side.So that Mobile Slide 1-210 passes through leading truck 1- in lifting process
120 adjustment lifting directions, carry out stablizing lifting.
As shown in Figure 26 to Figure 28, in the present invention, the end fitting also includes Mobile Slide locking device 1-400, moves
Dynamic slide unit locking device 1-400 is rotatably arranged on end underframe body 1-110, Mobile Slide locking device 1-400 tools
There are the second unlocked position and the second latched position, it is mobile to slide when Mobile Slide locking device 1-400 is in the second unlocked position
Platform can opposed end chassis body 1-110 movement, when Mobile Slide locking device 1-400 be in the second latched position, move
Slide unit is fixed on end underframe body 1-110.
Mobile Slide locking device 1-400 includes:End underframe body 1-110, locking mechanism and operating mechanism.Its
In, locking mechanism includes:It is hinged in the middle part of spacing supporting plate 1-420, spacing supporting plate 1-420 on end underframe body 1-110, it is spacing
Supporting plate 1-420 first end forms sticking department, and the first end of operating mechanism and spacing supporting plate 1-420 the second end are hinged, and operates
Mechanism also has the abutting part coordinated with the supporting part being arranged on end underframe body 1-110.
Wherein, by setting locking mechanism on end underframe body so that article to be fixed, and operating mechanism is passed through
Locking mechanism is controlled, to facilitate staff to operate locking mechanism, can so be passed through when without using Mobile Slide
Mobile Slide is fixed locking mechanism, is rocked with avoiding producing in transportation, and causes Mobile Slide to be damaged, so as to
The service life of Mobile Slide can be improved.
The operating mechanism includes:Action bars 1-430 and pull bar 1-440.Wherein, action bars 1-430 includes operation handle 1-
431 and connector 1-432, abutting part are formed on operation handle 1-431, and connector 1-432 and end underframe body 1-110 is cut with scissors
It is connected to the first pin joint 1-432a.Pull bar 1-440 first end forms the first end of operating mechanism and with spacing supporting plate 1-420's
Second end is hinged, and pull bar 1-440 the second end and connector 1-432 are articulated with the second pin joint 1-432b, the second pin joint 1-
432b is located at the first pin joint 1-432a remote operation handle 1-431 one end.
Wherein, spacing supporting plate 1-420 has unlocked position and latched position, and action bars 1-430 is rotated clockwise and passed through
Pull bar 1-440 drives spacing supporting plate 1-420 to swing, can be with Mobile Slide when spacing supporting plate 1-420 is rocked to horizontal level
On mounting part connection, mounting part is supported by spacing supporting plate 1-420, i.e., spacing supporting plate 1-420 is now placed in latched position, grasps
The abutting part for making bar 1-430 abuts with supporting part, continues to rotate clockwise to limit action bars 1-430, spacing so as to make
Supporting plate 1-420 is maintained at the latched position.
Specifically, in order that with needs, the locking device includes two locking mechanisms, and two locking mechanisms are respectively positioned at end
Portion chassis body 1-110 both sides.
Specifically, the locking device also includes:Connect rod bearing 1-411 and connecting rod 1-412.Wherein, rod bearing is connected
1-411 is arranged on end underframe body 1-110, and connecting rod 1-412 is rotatably arranged in connection rod bearing 1-411, even
Extension bar 1-412 both ends are fixedly connected with two locking mechanisms respectively.
By two locking mechanisms of connecting rod 1-412 connections, two locking mechanisms can be made while rotated, so as to facilitate work
Make personnel while operate two locking mechanisms.
Wherein, the locating part stopper section 1-433 coordinated with pull bar 1-440, locating part are additionally provided with action bars 1-430
Stopper section 1-433 is arranged in operation handle 1-431 side wall, and positioned at the side of pull bar 1-440 connections, locating part stopper section
1-433 contacts with pull bar 1-440 to be rotated further with limiting operation handle 1-431.Preferably, by locating part stopper section 1-433
For convex portion.
When Mobile Slide need not be fixed, by operation handle 1-431 rotate counterclockwises, so that spacing supporting plate 1-420 is suitable
Hour hands are rotated, and when spacing supporting plate 1-420 is located at vertical position, spacing supporting plate 1-420 is no longer supported to Mobile Slide, this
When, spacing supporting plate 1-420 is located at unlocked position.In order to avoid operation handle 1-431 and spacing supporting plate 1-420 are rotated further,
One convex portion is set in operation handle 1-431 side wall, and the convex portion is when spacing supporting plate 1-420 is located at unlocked position, with pull bar 1-
440 abut, and can so limit operation handle 1-431 and rotate counterclockwise, be located at released state with the spacing supporting plate 1-420 of fixation
When, spacing supporting plate 1-420 position.
As shown in figure 8, end underframe 1-100 also includes the longitudinal spacing portion that limitation loading frame 2-100 is vertically moved, this is vertical
It is arranged on to limiting section on end underframe body 1-110 towards loading frame 2-100 one end.
Specifically, the longitudinal spacing portion is longitudinal bracing seat 1-130, and longitudinal bracing seat 1-130 can be with loading frame 2-100
On longitudinal bracing frame 2-120 be adapted, longitudinal bracing frame 2-120 is plugged in longitudinal bracing seat 1-130, with limitation longitudinal direction branch
Support 2-120 is moved down or moved left and right.
Wherein, end underframe 1-100 also includes the cross spacing portion of limitation loading frame 2-100 transverse shiftings, and this is laterally limited
Position portion is arranged on end underframe body 1-110 towards loading frame 2-100 one end.
Specifically, cross spacing portion is on cross-brace seat 1-140, the cross-brace seat 1-140 and loading frame 2-100
Cross-brace frame 2-130 is adapted.Wherein, cross-brace seat 1-140 includes multiple hooks, multiple to link up with side by side and equidistantly set
Put, cross-brace frame 2-130 is connecting pole, when end underframe 1-100 and loading frame 2-100 be in connection status, hook and
Connecting pole mounts.
End underframe body 1-110 includes two the relative end beam 1-111 be arrangeding in parallel, draw beam 1-112, two sides
Beam 1-113 and sleeper beam 1-114.Draw beam 1-112 is arranged between two end beam 1-111.Two curb girder 1-113 are set
Put between both ends corresponding to the beam 1-111 of end.Sleeper beam 1-114 is connected between draw beam 1-112 and curb girder 1-113.Pass through
Said structure can improve end underframe body 1-110 rigidity and intensity.
Wherein, draw beam 1-112 is connected between two end beam 1-111 middle part, draw beam 1-112 and two ends
Portion beam 1-111 is vertical, and curb girder 1-113 is parallel to draw beam 1-112, to form sphere of movements for the elephants structure.
3rd, end underframe support meanss concrete structure
As shown in Fig. 9, Figure 10 and Figure 22, the transport trainset also includes end underframe support meanss 3-100, end underframe branch
Support arrangement 3-100 is disposed movably in a vertical direction to end underframe 1-100 lower section, end underframe support meanss 3-100
Support Position with supporting base end portion chassis 1-100, with the support end when loading frame 2-100 opposed end chassis 1-100 is moved
Portion chassis 1-100.Loading frame 2-100 can so be increased in lifting or moving process medial end portions chassis 1-100 support strength,
Make mechanism operation more stable.
Specifically, end underframe support meanss 3-100 includes:For supporting base end portion chassis 1-100 bottom plate 3-110 and
For the bottom plate lift mechanism for driving bottom plate 3-110 to move, one end of bottom plate lift mechanism is connected with bottom plate 3-110, bottom plate liter
The other end of descending mechanism is connected with end underframe 1-100.By driving bottom plate 3-110 to move downwardly to ground, with to end bottom
Frame 1-100 is supported.
End underframe support meanss 3-100 also includes guide sleeve 3-130, and guide sleeve 3-130 is vertically situated at bottom plate
On 3-110, bottom plate lift mechanism is arranged in guide sleeve 3-130.By guide sleeve 3-130 to fix bottom plate lift mechanism the bottom of at
Position on plate 3-110, and bottom plate 3-110 can be oriented to by guide sleeve 3-130, so that bottom plate 3-110 is vertical
Lifting.
In order to stablize bottom plate 3-110 vertical liftings, bottom plate lift mechanism and guide sleeve 3-130 are respectively provided with two, bottom plate
Elevating mechanism and guide sleeve 3-130 are with bottom plate 3-110 center symmetric setting on bottom plate 3-110.
End underframe support meanss 3-100 also includes limited block 3-140, and limited block 3-140 is arranged on guide sleeve 3-130
Lateral wall on.Limited block 3-140 is corresponded on end underframe 1-100 and is provided with postive stop baffle, limited block 3-140 and postive stop baffle
Coordinate to limit bottom plate 3-110 towards the farthest displacement away from the movement of end underframe 1-100 directions.
End underframe support meanss 3-100 also includes Mobile Slide bearing 3-150, and Mobile Slide bearing 3-150 is arranged on
Bottom plate 3-110 end, Mobile Slide 1-210 one end are rotatably arranged in Mobile Slide bearing 3-150, Mobile Slide
1-210 is synchronized with the movement by Mobile Slide bearing 3-150 and bottom plate 3-110 in the vertical directions.
End underframe support meanss 3-100 also includes connection pedestal 3-160 and pipeline fixed seat 3-170.Wherein, connect
Pedestal 3-160 is arranged on bottom plate 3-110 middle part, and pipeline fixed seat 3-170 is arranged on connection pedestal 3-160 towards loading frame 2-
In 100 side wall, by pipeline fixed seat 3-170 with connecting line in anchor portion device.
Transport trainset also includes Mobile Slide drive device, and Mobile Slide 1-210 is carried out by Mobile Slide drive device
Swing.End underframe support meanss 3-100 also includes Mobile Slide drive device bearing 3-180, is arranged on connection pedestal 3-160
On, one end of Mobile Slide drive device is connected with Mobile Slide drive device bearing 3-180, and the of Mobile Slide drive device
Two ends are connected with Mobile Slide 1-210, when end underframe support meanss 3-100 drops to precalculated position, Mobile Slide driving
Device driving Mobile Slide 1-210 is swung.
End underframe support meanss 3-100 is simple in construction, easy for installation, can be completed to end underframe by said structure
Support purpose, make overall structure reliable and stable.
4th, pivot driver device concrete structure
As shown in figure 11, pivot driver device 6-100 is arranged on end underframe 1-100, pivot driver device 6-100
Including:Actuating unit 6-110 and executing agency 6-120.Executing agency 6-120 is driven by actuating unit 6-110, executing agency 6-
120 are connected with loading frame 2-100, by executing agency 6-120 loading frame 2-100 can be driven to be rotated around support meanss 5-100.
To realize outside loading frame 2-100 outside pendulum to track or be withdrawn outside track.
Specifically, the pivot driver device also includes transmission mechanism 6-130, and transmission mechanism 6-130 is arranged on actuating unit
Between 6-110 and executing agency 6-120.Wherein, transmission mechanism 6-130 is preferably chain-wheel mechanism.
Chain-wheel mechanism includes the first chain wheel set and the second chain wheel set arranged in parallel, the first chain wheel set and the second sprocket wheel
Group includes:Driving wheel 6-131, multiple driven pulley 6-132 and executing agency 6-120.Wherein, driving wheel 6-131 and power
Mechanism 6-110 output end connection.Chain 6-133 is connected with driving wheel 6-131 and multiple driven pulley 6-132, executing agency 6-
120 are arranged on chain 6-133.First chain wheel set and the second chain wheel set also include:Tensioning wheel for tension chain 6-133.
The present invention can complete, to loading frame 2-100 driving functions, can so reduce cost, facilitate work by simple chain-wheel mechanism
Make personnel's installation and maintenance.
Wherein, executing agency 6-120 is arranged on chain 6-133, is provided with loading attachment with performing block to perform block
What is coordinated is performed portion 2-221, performs block drive and is performed portion 2-221 movements, so that loading frame 2-100 turns around pivoting centre
It is dynamic.
5th, the concrete structure of the loading frame of loading attachment
As shown in figure 12, loading frame 2-100 includes:Loading frame body 2-110, longitudinal auxiliary section and horizontal auxiliary section.
Longitudinal auxiliary section is arranged on close to end underframe 1-100 one end on loading frame body 2-110, for limiting loading frame 2-100
Length travel.Horizontal auxiliary section is arranged on loading frame body 2-110 close to end underframe 1-100 one end, for limiting dress
Carrier 2-100 lateral displacements.
Wherein, longitudinal auxiliary section is that end longitudinal bracing frame 2-120, loading frame body 2-110 and end underframe 1-100 connect
When connecing, end longitudinal bracing frame 2-120 is partially disposed in longitudinal bracing seat 1-130 and is fixed on end underframe 1-100,
When loading frame body 2-110 is pivoted, end longitudinal bracing frame 2-120 removes longitudinal bracing seat 1-130.
Horizontal auxiliary section is end cross support frame 2-130, and end cross support frame 2-130 includes connecting pole, works as end
When chassis 1-100 and loading frame 2-100 is in connection status, hooking connecting pole is linked up with, when loading frame 2-100 is in mobile status
When, end cross support frame 2-130 separates with cross-brace seat 1-140.
Wherein, for the ease of loading goods, loading frame 2-100 is arranged to concave frame, loading frame 2-100 also includes side plate
2-150, and side plate is arranged on to loading frame body 2-110 both sides, to form concave structure 2-151.
Loading frame 2-100 also includes buttress brace 2-160.Wherein, it is respectively provided with loading frame body 2-110 and side plate 2-150
There is buttress brace 2-160.Loading frame 2-100 can be reinforced by buttress brace 2-160, the structure for improving loading frame 2-100 itself is strong
Degree.In order that loading frame 2-100 structures are more aesthetically pleasing, and reduce its windage in the process of running, specifically, by buttress brace 2-
160 are arranged on loading frame body 2-110 inner side.
Loading frame 2-100 also includes body side bearer 2-170, and body side bearer 2-170 is arranged on loading frame body 2-110 away from end
Portion chassis 1-100 one end.
6th, the concrete structure of stopping means is loaded
As shown in Figure 13 to 19, transport trainset also includes spacing in the loading that loading frame 2-100 is moved for limiting goods
Device, load stopping means and be arranged on loading frame 2-100.
Wherein, loading stopping means includes stopper section 4-100, and stopper section 4-100 is rotatably arranged in loading frame body
On 2-110, stopper section 4-100 has the blocking position of limitation goods movement and avoids the avoidance position of goods movement.Specifically,
Stopper section 4-100 includes stopper section connecting plate 4-110, and stopper section connecting plate 4-110 one end is rotatably arranged in loading
On frame body 2-110, the stopper section connecting plate 4-110 other end has bending part 4-111, by bending part 4-111 to goods
Carry out backstop.Stopper section 4-100 also includes:Bending supporting plate 4-120, bending supporting plate 4-120 both ends are arranged at bending
Portion 4-111, backstop is carried out to goods by bending supporting plate 4-120.The said equipment is simple in construction, is easily installed and operates.It is excellent
Selection of land, stopping means is loaded to be multiple, to fix goods by multiple loading stopping means.
Position of the stopping means on loading frame 2-100 is loaded in order to facilitate adjustment, loading stopping means also includes:It is mobile
Guide rail 4-200 and mobile sliding block 4-300.Wherein, moving guide rail 4-200 is arranged on loading frame body 2-110.Mobile sliding block 4-
300 include the chute 4-310 with moving guide rail 4-200 cooperations, and bending supporting plate 4-120 is rotatably arranged in mobile sliding block 4-
On 300, coordinated by moving guide rail 4-200 and mobile sliding block 4-300 to adjust stopper section 4-100 in loading frame body 2-110
On position, wherein, mobile sliding block has mobile status and lock-out state on moving guide rail 4-200.Sliding block movement to be moved
During to precalculated position, locked with moving guide rail 4-200, so can be by the way that goods be fixed.
Wherein, one end away from bending part 4-111 on stopper section connecting plate 4-110 is provided with through hole 4-112, mobile sliding block
Be provided with pit 4-340 on the inside of the upper close loading frame body 2-110 of 4-300, load stopping means also include axis of guide 4-320 and
Limit shaft 4-330.Wherein, axis of guide 4-320 is vertically situated on mobile sliding block 4-300 and part is in pit 4-340,
Stopper section connecting plate 4-110 is connected by through hole 4-112 with axis of guide 4-320.Limit shaft 4-330 is arranged on mobile sliding block 4-
300 upper surface, the height on limit shaft 4-330 top of the spacing height less than axis of guide 4-320.Pass through limit shaft 4-330
Rotated with limit stop portion connecting plate 4-110 on axis of guide 4-320.Wherein, by stopper section connecting plate 4-110 to goods
When carrying out spacing, stopper section connecting plate 4-110 rises above limit shaft 4-330 position, rotational stop along axis of guide 4-320
Portion connecting plate 4-110, make bending part 4-111 towards on the inside of loading frame body 2-110, stopper section connecting plate 4-110 is along the axis of guide
4-320 is dropped in pit 4-340, and pit 4-340 is rotated by side wall limit stop portion connecting plate 4-110, stopper section connection
Plate 4-110 limits goods movement by bending part 4-111, when stopper section connecting plate 4-110 does not carry out spacing to goods, stopper section
Connecting plate 4-110 is arranged on mobile sliding block 4-300 upper surface and by limit shaft 4-330 limit stops portion connecting plate 4-110
Activity.
Wherein, for the ease of being triangle by through hole 4-112 by limit shaft 4-330 fixed stops portion connecting plate 4-110
Hole, when stopper section connecting plate 4-110 is located at mobile sliding block 4-300 upper surface, limit shaft 4-330 is articulated in through hole 4-112
Interior, limit shaft 4-330 and through hole 4-112 coordinates with limit stop portion connecting plate 4-110 activities.
Operated for the ease of staff and load stopping means, the loading stopping means also includes operation handle 4-400, grasps
Make handle 4-400 to be rotatably arranged on mobile sliding block 4-300.Wherein, loading frame 2-100 both sides are provided with side plate 2-
Jagged 2-150a is set on 150, side plate 2-150, and breach 2-150a respective operations handles 4-400 is set, to facilitate work
Personnel adjust operation handle 4-400 on the outside of loading frame 2-100.
7th, the loading frame lowering or hoisting gear concrete structure of loading attachment
As shown in Figure 20 to Figure 23, loading frame lowering or hoisting gear 2-200 includes:Loading frame lowering or hoisting gear body 2-210, movement
Portion 2-220 and lifting unit 2-230.
Loading frame lowering or hoisting gear body 2-210 is movably disposed on loading frame 2-100.Move portion 2-220 is arranged on
On loading frame lowering or hoisting gear body 2-210 and for moving loading frame 2-100, loading frame 2-100 is by move portion 2-220 along cunning
Road slides, and move portion 2-220 forms the portion that is slidably matched.Lifting unit 2-230 is arranged on loading frame lowering or hoisting gear body 2-210 simultaneously
For lifting loading frame 2-100.Lifting unit 2-230 one end is connected with loading frame 2-100, and lifting unit 2-230 passes through move portion
2-220 lifts as the strong point to loading frame 2-100.Loading frame lowering or hoisting gear 2-200 is simple in construction, is easily installed,
Loading frame 2-100 can be achieved by the structure to lift and swing on end underframe 1-100.
Specifically, in the horizontal direction, there is preset distance between lifting unit 2-230 and move portion 2-220.So cause
Interference is not produced between loading frame 2-100 lifting and move portion 2-220.
The lifting unit bearing coordinated with lifting unit 2-230 is provided with loading frame 2-100, lifting unit bearing is along loading frame sheet
Body upwardly extends to be formed, and lifting unit 2-230 is connected to the top of lifting unit bearing.Lifting unit is by the lifting unit bearing to drive
Loading frame 2-100 is lifted.
Specifically, loading frame lowering or hoisting gear body 2-210 includes the first connecting plate 2-211 and the second connecting plate 2-212.
Wherein, move portion 2-220 is arranged on the first connecting plate 2-211, the first connecting plate 2-211 side and the second connecting plate 2-
212 side vertical connection, lifting unit 2-230 are arranged on the second connecting plate 2-212.
Pivot driver device 6-100 includes executing agency 6-120, and move portion 2-220 includes being performed portion 2-221 and rolling
2-222 is taken turns, portion 2-221 is performed and is used to accommodate executing agency 6-120, roller 2-222 is arranged on below the portion that is performed, and the rolling
The pivotal orientation for taking turns 2-222 towards loading frame 2-100 rotates.Loading frame 2-100 when being moved on slideway, executing agency 6-120 with
Portion 2-221 cooperations are performed, torque is pivoted to be provided to loading frame 2-100, loading frame 2-100 is being held by roller 2-222
Moved on portion chassis 1-100.
Lifting unit 2-230 includes lifting support and loading frame elevating mechanism 2-232.Wherein, lifting support includes first
Seat 2-231, the first bearing 2-231 are arranged on 2-212 on the second connecting plate.Loading frame elevating mechanism 2-232 is arranged on first
On seat 2-231, loading frame elevating mechanism 2-232 telescopic end on loading frame 2-100 close to end underframe 1-100 one end with connecting
Connect, for loading frame 2-100 before pivot, loading frame elevating mechanism 2-232 driving loading frames 2-100 end rises to mobile position
Put, so that loading frame 2-100, during being pivoted, end underframe 1-100 can avoid loading frame 2-100, work as loading frame
When 2-100 end is in shift position, pivot driver device 6-100 driving loading frame 2-100, make it around support meanss 5-
100 pivot, and after loading frame 2-100 turns to precalculated position, loading frame elevating mechanism 2-232 driving loading frames 2-100 declines
To ground.
Specifically, lifting support also includes the second bearing 2-233.Second bearing 2-233 is arranged on loading frame 2-100 and leaned on
Close end chassis 1-100 one end, loading frame elevating mechanism 2-232 one end are connected with the first bearing 2-231, loading frame lifting
Mechanism 2-232 the second end is connected with the second bearing 2-233.Wherein, the second bearing 2-233 is lifting unit branch mentioned above
Seat.
Specifically, guide groove 2-233a is provided with second bearing 2-233, loading frame lowering or hoisting gear 2-200 is also wrapped
Loading frame lifting guide part 2-240 is included, loading frame lifting guide part 2-240 is arranged on the second connecting plate 2-212 towards loading frame
In side wall on the inside of 2-100, loading frame lifting guide part 2-240 and guide groove 2-233a coordinates, and is existed with boot-loader frame 2-100
Lifted on vertical direction.
Wherein, loading frame lifting guide part 2-240 includes:Lift directive wheel 2-241 and guide runner 2-242.Wherein,
Guide runner 2-242 is arranged on lifting directive wheel 2-241 both sides, and guide groove 2-233a cell wall is arranged on lifting directive wheel 2-
In space between 241 and guide runner 2-242.So guide part can be lifted by loading frame when loading frame 2-100 is lifted
2-240 and guide groove 2-233a, which coordinates, to be oriented to.
Wherein, loading frame lowering or hoisting gear 2-200 also includes mounting shelves 2-250.Mounting shelves 2-250 is arranged on the first connection
On plate 2-211, and positioned at the top for being performed portion 2-221.
8th, support meanss
As shown in FIG. 24 and 25, the support meanss are arranged between the first car and the second car.Wherein, support meanss include upper
Connecting portion 5-110 and lower connecting portion 5-120.Joint connector 7-100 is arranged on connecting portion 5-110, bogie 8-100 with
Lower connecting portion 5-120 connections.By support meanss to connect loading frame 2-100 and bogie 8-100, to pass through bogie 8-
100 couples of loading frame 2-100 are supported.
Wherein, upper connecting portion 5-110 includes upper connecting portion body 5-111 and for placing joint connector 7-100's
First center filler 5-112.First center filler 5-112 is arranged on connecting portion body 5-111 upper surface.Preferably, upper connection
Portion 5-110 also includes the first side bearing 5-113, wherein, loading frame 2-100 end set has body side bearer 2-170, passes through first
Side bearing 5-113 correspondingly connects body side bearer 2-170.
Wherein, lower connecting portion 5-120 includes lower connecting portion body 5-121, the second side bearing 5-124 and the second center filler
5-125.Wherein, the second side bearing 5-124 is arranged on lower connecting portion body 5-121 lower surface.Second center filler 5-125 is set
In lower connecting portion body 5-121 lower surface.Preferably, lower connecting portion body 5-121 both ends are provided with the second side bearing
5-124。
Preferably, lower connecting portion body 5-121 both ends are respectively arranged with two the second side bearing 5-124.
Preferably, lower connecting portion body 5-121 both ends are respectively arranged with a second center filler 5-125, and each second
Center filler 5-125 is correspondingly arranged between two the second side bearing 5-124.
By support meanss provided in an embodiment of the present invention, it is propped up while meeting that loading frame 2-100 is pivoted
Support.Enable loading frame 2-100 stable operations, the apparatus structure is simple, cost is low, is easy to staff to be installed and examined
Repair.
9th, joint connector
As shown in Fig. 5, Figure 30 to Figure 33, in the present embodiment, pass through joint connector 7- between the first car and the second car
100 link together.Wherein, the first car and the second car are connected by joint connector so that energy between the first car and the second car
It is enough to be relatively rotated by hub switch side of joint connector, multigroup transport of piggyback transport car can be so realized, in satisfaction the
One car and the second car substantially increase conevying efficiency while pivot.
Specifically, the first car, the second car and joint connector 7-100 are multiple first car, one of interconnection
Individual second car and a joint connector 7-100 form a car group.
It is convenient whole to piggyback transport car by the way that the first car, the second car and joint connector 7-100 are formed into a car group
Body is organized into groups, in order to manage.
Specifically, the first car includes:First end device and the first loading attachment coordinated with first end device;Second
Car includes:The second end device and the second loading attachment coordinated with the second end device, wherein, joint connector 7-100 is set
Put between the first loading attachment and the second loading attachment.It is arranged such so that the first loading attachment and the second loading attachment energy
It is enough to be pivoted using joint connector 7-100 as pivoting centre.
In the present embodiment, specifically, joint connector 7-100 includes:Recessed joint 7-110, axle ball 7-120 and convex pass
7-130 is saved, recessed joint 7-110 is connected with the first car, and buttknuckle 7-130 is connected with the second car, and recessed joint 7-110, which has, accommodates axle
Ball 7-120 accommodating chamber, axle ball 7-120 are movably installed in accommodating chamber, and buttknuckle 7-130, which has, is enclosed on axle ball 7-120
On connection ring.Two limit shaft 7-122 that axle ball 7-120 includes spheroid 7-121 and is arranged on spheroid 7-121, two limits
Position axle 7-122 is symmetrical arranged, and recessed joint 7-110 accommodating chamber has the two spacing recesses coordinated with two limit shaft 7-122.
Joint connector 7-100 is simple in construction, easy for installation, and cost is low.Installed for the ease of limit shaft 7-122, specifically, the limit
Position axle 7-122 has section.
The course of work of the present embodiment is as follows:
When piggyback transport car is loaded, first releases Mobile Slide locking device 1-400 and load holder locking apparatus 1-300
Locking, manipulation end underframe support device 3-100 drop to ground, by end underframe support meanss 3-100 to end bottom
Frame 1-100 is supported.Wherein, end underframe support meanss 3-100 drives Mobile Slide 1-210 to decline during decline,
When end underframe support meanss 3-100 drops to ground, Mobile Slide 1-210 is driven to turn by Mobile Slide drive device
It is dynamic, after rotateing in place, slideway is collectively forming by Mobile Slide 1-210 and fixed slide unit 1-220.
By loading frame lowering or hoisting gear 2-200, loading frame 2-100 first end is lifted, by loading frame 2-100 and end
It is separated from each other between portion chassis 1-100.When loading frame 2-100 is lifted, pass through the roller 2- on loading frame lowering or hoisting gear 2-200
222 with fixed slide unit 1-220 upper surfaces to support loading frame 2-100 to rise.Treat that loading frame 2-100 rises to predetermined altitude
Afterwards, control pivot driver device 6-100 is driven to loading frame 2-100, so that loading frame 2-100 first end is in slideway
Upper movement.
After loading frame 2-100 first end integrally removes slideway, stop pivot driver device 6-100 driving.Manipulation
Loading frame lowering or hoisting gear 2-200, loading frame 2-100 first end is set to drop to ground by loading frame lowering or hoisting gear 2-200.
During loading frame 2-100 first end drops to ground, pass through roller 2-222 and Mobile Slide 1-210 upper surfaces
To support loading frame 2-100 to decline.
After loading frame 2-100 first end drops to ground, now loading frame 2-100 is supported by ground.Afterwards,
Manipulation Mobile Slide drive device withdraws Mobile Slide 1-210, to facilitate lorry to drive into loading frame 2-100.Wait to have loaded
Bi Hou, Reverse Turning Control transport trainset reversely withdraw the inverse process that process is said process, herein not to withdraw loading frame 2-100
Repeating.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.