CN216580741U - Vehicle-mounted expandable carriage - Google Patents

Abstract

The utility model discloses a vehicle-mounted expandable carriage, which comprises a main carriage body, wherein the main carriage body is longitudinally distributed; the left side and the right side of the main body compartment are respectively provided with a compartment expansion port which is longitudinally distributed; each carriage expansion port is respectively provided with an expansion carriage capable of transversely moving left and right; electric cylinder mounting brackets which are longitudinally distributed are welded on the inner side of the top of the main body compartment; the electric cylinder mounting bracket is positioned between the two carriage expansion ports; the left end and the right end of the electric cylinder mounting bracket are respectively arranged corresponding to the two carriage expansion ports; the bottom of the electric cylinder mounting bracket is provided with an expansion carriage pushing electric cylinder assembly; and the expansion carriage pushing electric cylinder assembly is used for pushing the two expansion carriages to transversely move left and right in the carriage expansion opening. The utility model has scientific structural design, and can conveniently and reliably expand the internal space of the carriage when the carriage stays at the destination, so that a user can conveniently carry out various operations with larger occupied space, such as equipment assembly operation and the like in the carriage.

Description

Vehicle-mounted expandable carriage

Technical Field

The utility model relates to the technical field of vehicle-mounted carriage design, in particular to a vehicle-mounted expandable carriage.

Background

During road transport, a vehicle (e.g., a container) is transported to a destination, typically by a trailer of an automobile.

The internal space of an existing car (such as a container) is a space with a fixed size, and the size of the space is kept unchanged all the time during the transportation process of the goods and the whole process of reaching the destination.

However, some mechanical equipment components (e.g., part of a launch vehicle) placed in a vehicle cabin are generally required to be used after being assembled in the vehicle cabin after being transported to a destination.

Because a plurality of equipment subassemblies need occupy a large amount of inner space in the assembling process to the volume of finished product or semi-finished product after the equipment is assembled is great usually, and the inner space size of original carriage is fixed limitedly, can't satisfy the equipment demand of equipment subassembly in the carriage usually. If the equipment assembly is assembled in an environment outside a vehicle compartment, the equipment assembly requirements of users cannot be met due to the influence of factors such as climate and the like and the factors such as technical secrecy and the like.

Therefore, there is a need for a vehicle cabin that can easily and reliably expand the internal space of the vehicle cabin when the vehicle cabin stays at a destination, so that a user can perform various operations such as assembling equipment components in the vehicle cabin that take up a large space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vehicle-mounted expandable carriage aiming at the technical defects in the prior art.

Therefore, the utility model provides a vehicle-mounted expandable carriage which comprises a hollow main body carriage, wherein the hollow main body carriage is longitudinally distributed;

the left side and the right side of the main body compartment are respectively provided with a compartment expansion port which is longitudinally distributed;

each carriage expansion port is respectively provided with an expansion carriage capable of transversely moving left and right;

the left side and the right side of the front end of the main body compartment are respectively provided with an openable compartment door;

the shape of the main body compartment is a cuboid;

electric cylinder mounting brackets which are longitudinally distributed are welded on the inner side of the top of the main body compartment;

the electric cylinder mounting bracket is positioned between the two carriage expansion ports;

the left end and the right end of the electric cylinder mounting bracket are respectively arranged corresponding to the two carriage expansion ports;

the bottom of the electric cylinder mounting bracket is provided with an expansion carriage pushing electric cylinder assembly;

the left end and the right end of the electric cylinder assembly are pushed by the expansion carriage and are respectively connected with one expansion carriage;

and the expansion carriage pushing electric cylinder assembly is used for pushing the two expansion carriages to transversely move left and right in the carriage expansion opening.

Preferably, for the main body compartment, the front end and the rear end of the left side of the bottom of the electric cylinder mounting bracket and the front end and the rear end of the right side of the bottom are respectively welded with a transversely distributed hanging rail;

the four carriage side vertical beams are vertically and fixedly arranged in the main carriage;

the front side and the rear side of each carriage expansion opening are respectively connected with the outer side edge of one carriage side vertical beam;

for two carriage side vertical beams positioned in the front side and the rear side of the carriage expansion port, a first bearing mounting seat and a first idler wheel guide rail are respectively arranged at the upper end and the lower end of the opposite side and are used for connecting the upper end and the lower end of the outer side of a scissor fork structure.

Preferably, the four corners of the top of the main body compartment are respectively provided with an upper hoisting interface;

the four corners of the bottom of the main body compartment are respectively provided with a bottom hoisting interface;

and hoisting holes are formed in the center positions of the upper hoisting connector and the bottom hoisting connector.

Preferably, the two expansion carriages respectively comprise a longitudinally distributed expansion carriage main body frame;

the two expanded carriage main body frames are symmetrically distributed from left to right;

the front end and the rear end of the inner side of each expanded compartment main body frame are respectively and vertically connected with an expanded compartment side frame which is transversely distributed, and the upper parts of the opposite sides of the two expanded compartment side frames are connected through a hanging rail pulley mounting beam which is longitudinally distributed;

each expanded carriage main body frame and the outer surface of the expanded carriage side surface frame connected with the expanded carriage main body frame are covered with a composite plate with a skin;

a hanging rail pulley is respectively arranged at the front end and the rear end of the top of each hanging rail pulley mounting beam;

and the upper end and the lower end of the inner side of the side frame of the expanded carriage are respectively provided with a second bearing mounting seat and a second idler guide rail which are used for connecting the upper end and the lower end of the inner side of a scissor fork structure.

Preferably, the lateral length of each of the expanded compartment side frames is less than or equal to one-half of the lateral length of the main compartment.

Preferably, the scissor structure is positioned between the side frame of the extended carriage and the side vertical beam in the main carriage;

the two sides of the scissors structure are respectively connected with the adjacent side frames of the extended carriage and the side vertical beams in the main carriage.

Preferably, the scissors structure comprises a first cross connecting rod and a second cross connecting rod which are distributed in a cross way;

the middle parts of the first cross connecting rod and the second cross connecting rod are hinged;

the upper ends of the first cross connecting rod and the second cross connecting rod are respectively provided with a bearing with a seat;

the bottom ends of the first cross connecting rod and the second cross connecting rod are respectively pivoted with an idler wheel;

the upper end and the lower end of the outer side of the scissor structure are provided with a bearing with a seat and an idler wheel which are respectively and correspondingly connected with a first bearing mounting seat and a first idler wheel guide rail in the carriage side vertical beam;

the upper end and the lower end of the inner side of the scissor structure are provided with a bearing with a seat and an idler wheel which are respectively and correspondingly connected with a second bearing mounting seat and a second idler wheel guide rail in the extended carriage side frame.

Preferably, for two extended carriage side frames connected to the front end and the rear end of each extended carriage main body frame, the servo electric cylinder mounting seats are respectively welded on the lower parts of the opposite sides of the two extended carriage side frames;

and each servo electric cylinder mounting seat is provided with one servo electric cylinder.

Preferably, the expansion carriage pushing electric cylinder assembly comprises four expansion carriage pushing electric cylinders;

two transversely distributed expansion carriages are respectively arranged at the front end and the rear end of the bottom of the electric cylinder mounting bracket in a bilateral symmetry manner to push the electric cylinder;

the electric cylinder mounting bracket is positioned on the inner side of the top of the main body carriage;

each expansion carriage pushes a moving end arranged on the outer side of the electric cylinder to be respectively connected with the inner sides of the adjacent expansion carriages.

Preferably, the four expansion carriages push the transmission control input end of the electric cylinder to be in linkage connection with the power output end of a servo motor;

for the four extended carriage pushing electric cylinders, the two extended carriages positioned at the rear push the transmission control input ends arranged at the inner sides of the electric cylinders and are connected with the two output ends of the one-in two-out commutator;

the input end of the one-in two-out commutator is connected with one output end of the one-in three-out commutator through a connecting shaft and a coupler;

the other two output ends of the one-in three-out commutator are connected with transmission control input ends which are arranged at the inner sides of the two expansion carriages positioned in front and used for pushing the electric cylinder;

and the input end on the front side of the one-in three-out commutator is connected with the power output end of the servo motor.

Compared with the prior art, the vehicle-mounted expandable carriage has scientific structural design, can conveniently and reliably expand the internal space of the carriage when the carriage stays at the destination, is convenient for a user to carry out various operations with larger occupied space, such as equipment assembly operation and the like in the carriage, and has great practical significance.

Drawings

Fig. 1a is a schematic perspective view of a vehicle-mounted expandable car provided by the present invention, when in an expanded state, and a rear car panel of a main car (i.e. a car panel in a direction of a car head for dragging the car) is removed;

fig. 1b is a schematic perspective view of the vehicle-mounted expandable car provided by the present invention when in a contracted state and the rear car panel of the main car (i.e. the car panel in the direction of the car head for dragging the car) is removed;

fig. 1c is a rear view of the vehicle-mounted expandable car provided by the present invention, when the rear car panel of the main car (i.e. the car panel located in the direction of the car head for dragging the car) is removed, the expanded car is in the process of unfolding;

fig. 1d is a rear view of a vehicle-mounted expandable carriage according to the present invention, when a rear carriage panel (i.e., a carriage panel located in a direction of a vehicle head for dragging the carriage) of a main carriage is removed, the expandable carriage is completely expanded, and a scissor structure is in a retracted state;

fig. 1e is a left side view of a vehicle-mounted expandable car provided by the present invention;

fig. 1f is a rear view of the two expanded carriages when they are contracted, where the rear carriage panel of the main carriage (i.e., the carriage panel in the direction of the car head for dragging the carriage) is removed;

FIG. 1g is a top view of a vehicle mounted expandable car body with a roof panel of the body car body removed according to the present invention;

fig. 1h is a top view of the vehicle-mounted expandable car body of the present invention, when the top cover of the main car body is removed, the scissor structure is contracted;

fig. 2a is a schematic perspective view of a main body compartment in a vehicle-mounted expandable compartment according to the present invention;

fig. 2b is a front view (i.e., a front view) of a main body compartment in the vehicle-mounted expandable vehicle compartment provided by the present invention;

fig. 2c is a rear view of a main body compartment of the vehicle-mounted expandable car according to the present invention;

fig. 2d is a top view of a main body compartment of the vehicle-mounted expandable car provided by the present invention;

fig. 3a is a left side view of a main body compartment in the vehicle-mounted expandable vehicle compartment provided by the present invention;

FIG. 3b is a view taken along line A-A of FIG. 3 a;

FIG. 3c is a top view of a main body compartment with a roof panel removed, in a vehicle-mounted expandable compartment according to the present invention;

fig. 4a is a schematic perspective view of an expanded car located on the left side in a vehicle-mounted expandable car provided by the present invention;

fig. 4b is a right side view of the left side expanded car in the vehicle-mounted expandable car provided by the present invention;

fig. 4c is a front view (i.e., a front view) of an expanded car located on the left side in the vehicle-mounted expandable car provided by the present invention;

fig. 4d is a front view (i.e., a front view) of the expanded wagon on the left side of the vehicle-mounted expandable wagon provided by the present invention after removing the composite plate 203 with the skin (i.e., the expanded wagon body frame 201 and the expanded wagon side frame 202 are not covered);

fig. 4e is a top view of the left expanded car in the vehicle-mounted expandable car provided by the present invention;

fig. 5a is a schematic diagram showing a first state of the engagement between a hanger rail pulley of the expansion car 2 and a hanger rail 1001 in the main car 1 in the vehicle-mounted expandable car provided by the present invention;

fig. 5b is a schematic diagram of a matching state between a hanger rail pulley of the expansion car 2 and a hanger rail 1001 in the main car 1 in the vehicle-mounted expandable car provided by the present invention;

fig. 6a is a schematic front structural diagram of a scissor structure 3 for connecting the extended wagon side frame 202 and the side vertical beam 103 inside the main wagon 1 between the extended wagon side frame 202 located in front and the side vertical beam 103 inside the main wagon 1 in the vehicle-mounted expandable wagon provided by the utility model;

fig. 6b is a schematic side structure diagram of a scissor structure 3, which is located between the extended wagon side frame 202 and the side vertical beam 103 inside the main wagon 1, and is used for connecting the extended wagon side frame 202 and the side vertical beam 103 inside the main wagon 1 in the vehicle-mounted expandable wagon provided by the utility model;

FIG. 7 is a schematic perspective view of an electric cylinder assembly pushed by an expanded carriage in a vehicle-mounted expandable carriage according to the present invention;

fig. 8 is a top view of the electric cylinder assembly pushed by the vehicle-mounted expandable carriage provided by the utility model.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1a to 8, the present invention provides a vehicle-mounted expandable car body, which includes a longitudinally distributed hollow main body car body 1;

the left side and the right side of the main body compartment 1 are respectively provided with a compartment expansion port 100 which is longitudinally distributed;

each compartment expansion port 100 is respectively provided with an expansion compartment 2 which can move horizontally and leftwards and rightwards;

the left side and the right side of the front end of the main body compartment 1 are respectively provided with an openable compartment door 6;

the car door 6 may be hinged to the left and right sides of the front end of the main body car 1 by a hinge or a hinge, which is a conventional structure.

In the present invention, the shape of the main body compartment 1 is a rectangular parallelepiped;

electric cylinder mounting brackets 101 which are longitudinally distributed are welded on the inner side of the top of the main body compartment 1;

an electric cylinder mounting bracket 101 located between the two carriage expansion ports 100;

the left end and the right end of the electric cylinder mounting bracket 101 are respectively arranged corresponding to the two carriage expansion ports 100;

the bottom of the electric cylinder mounting bracket 101 is provided with an expansion carriage for pushing the electric cylinder assembly 5;

the left end and the right end of the electric cylinder component 5 are pushed by the expansion carriage and are respectively connected with one expansion carriage 2;

the extended carriage pushing electric cylinder assembly 5 is used for pushing the two extended carriages 2 to transversely move left and right in the carriage extended opening 100.

In the concrete implementation, to main body carriage 1, the front and rear ends on the left side of the bottom of electric cylinder mounting bracket 101 and the front and rear ends on the right side of the bottom are respectively welded with a transversely-distributed hanger rail 1001 (specifically, a steel hanger rail). Four steel overhead rails are counted;

four carriage-side vertical beams 103 vertically and fixedly arranged inside the main carriage 1;

the front side and the rear side of each compartment expansion opening 100 are respectively connected (welded) with the outer side edge of a compartment side upright beam 103;

for two carriage side vertical beams 103 located in the front and rear directions of the carriage expansion opening 100, the upper and lower ends of the opposite side are respectively provided with a first bearing mounting seat 104 and a first idler wheel guide rail 105 for connecting the upper and lower ends of one side (specifically, the outer side direction, that is, the side away from the central axis of the main carriage 1) of one scissor structure 3;

in concrete implementation, the main body compartment frame 106 is vertically provided on each of the left and right sides of the main body compartment 1, and on each of the front and rear sides of each compartment extension opening 100.

In particular, four corners of the top of the main body compartment 1 are respectively provided with an upper hoisting interface 1010;

four corners of the bottom of the main body compartment 1 are respectively provided with a bottom hoisting interface 102;

hoisting holes are formed in the center positions of the upper hoisting interface 1010 and the bottom hoisting interface 102;

in the concrete realization, the bottom middle section of main part carriage 1 still is provided with a plurality of fork truck holes that transversely link up to satisfy fork truck's fork dress requirement.

In the present invention, two expanded compartments 2 each include an expanded compartment main body frame 201 longitudinally distributed;

two expanded compartment main body frames 201 which are distributed symmetrically left and right;

the front end and the rear end of the inner side of each expanded compartment main body frame 201 are respectively and vertically connected with an expanded compartment side frame 202 which is transversely distributed, and the upper parts of the opposite sides of the two expanded compartment side frames 202 are connected through a hanging rail pulley mounting beam 2001 which is longitudinally distributed;

an extended compartment side frame 202 inserted into the compartment extension opening 100;

the outer surface of each expanded compartment main body frame 201 and the outer surface of the expanded compartment side surface frame 202 connected with the expanded compartment main body frame are covered with a composite plate 203 with a skin;

the upper end and the lower end of the inner side of the extended carriage side frame 202 are respectively provided with a second bearing mounting seat 204 and a second idler guide rail 205, which are used for connecting the upper end and the lower end of the other side (specifically, the inner side direction, that is, the side close to the central axis of the main carriage 1) of the scissor structure 3;

the front and rear ends of the top of each overhead rail carrier mounting beam 2001 are provided with an overhead rail carrier 207, respectively.

In a specific implementation, the lateral length of each extended compartment side frame 202 is less than or equal to one-half of the lateral length (i.e., the compartment width) of the main compartment 1.

In the concrete implementation, the scissor structure 3 is positioned between the side frame 202 of the extended carriage and the side vertical beam 103 in the main carriage 1;

the two sides of the scissors structure 3 are respectively connected with the adjacent extended compartment side frame 202 and the side vertical beam 103 inside the main compartment 1.

In particular, the scissors structure 3 comprises a first cross connecting rod 31 and a second cross connecting rod 32 which are distributed in a cross manner;

the middle parts of the first cross connecting rod 31 and the second cross connecting rod 32 are hinged (through a hinge shaft or a bearing with a seat);

the upper ends of the first cross connecting rod 31 and the second cross connecting rod 32 are respectively provided with a bearing 33 with a seat;

the bottom ends of the first cross connecting rod 31 and the second cross connecting rod 32 are respectively provided with an idler wheel 34 in a pivoted mode (for example, an idler wheel shaft 35);

it should be noted that, for any scissors structure 3, the pedestal bearing 33 and the idle wheel 34 at the upper and lower ends of one side (specifically, the outer side) of the scissors structure 3 are respectively connected with the first bearing mounting seat 104 and the first idle wheel guide rail 105 in the car side vertical beam 103;

the belt seat bearing 33 and the idle wheel 34 at the upper end and the lower end of the other side (specifically, the inner side) of the scissors structure 3 are respectively and correspondingly connected with the second bearing mounting seat 204 and the second idle wheel guide rail 205 in the extended carriage side frame 202.

In the utility model, the front side and the rear side of the expanded carriage 2 are provided with the scissors structures for stabilizing and guiding the expansion and the nesting of the expanded carriage.

In particular, it should be noted that each of the rail pulleys 207 includes a pulley holder 2072 and four pulleys 2071, the two ends of the top of the pulley holder 2072 are pivotally connected (i.e. rotatably connected) to each other by four pulleys (two sets of pulleys, each set of pulleys being symmetrically distributed in front and back), and a connecting column at the lower portion of the pulley holder 2072 is in threaded connection with the top of each rail pulley mounting beam 2001 by a thread.

The head block 207 of each head block mounting beam 2001 is correspondingly connected to a head block 1001 of the bottom of the electric cylinder mounting bracket 101 in the main body trunk 1.

It should be noted that the rail carrier 207 is a common structure, and is not described herein.

A steel hanger rail 1001 is welded to the top of the main body car 1 and to the bottom of the electric cylinder mounting bracket 101, a hanger rail carrier is connected to the extension car by a screw, and the hanger rail carrier is slidable in the steel hanger rail 1001 by a wheel structure provided thereon.

It should be noted that, according to the present invention, the wheel structure on the rail block at the top of the extended car side frame 202 is matched with the rail 1001 at the bottom of the electric cylinder mounting bracket 101 in the main car 1, so as to hoist the extended car 2 (including the extended car main frame 201 and the extended car side frame 202), so that the extended car 2 slides in the main car 1, thereby completing the extending and nesting operations.

In the specific implementation, for two extended carriage side frames 202 connected to the front end and the rear end of each extended carriage main body frame 201, a servo electric cylinder mounting seat 208 (specifically, a secondary servo electric cylinder mounting seat) is welded to the lower part of the opposite side of each extended carriage side frame 202;

each servo electric cylinder mounting seat 208 is provided with one servo electric cylinder 4 (specifically, a secondary servo electric cylinder).

It should be noted that the push-out end planes of the four servo electric cylinders 4 (the push-out ends are located at the lower sides of the servo electric cylinders 4, and are oriented vertically downward) can contact the ground below the extended carriage side frame 202, thereby playing a role in leveling and supporting the four corners of the two extended carriages 2 (including the extended carriage main body frame 201 and the extended carriage side frame 202).

In concrete realization, servo electronic jar can adopt current common servo electronic jar, for example current second grade servo electronic jar or other multistage servo electronic jars, no longer gives unnecessary details here.

In particular, the shape and size of the expanded wagon body frame 201 are matched with the shape and size of the wagon expansion opening 100 correspondingly.

In particular, in order to reduce the weight of the expanded vehicle compartment, the expanded vehicle compartment main body frame 201 and the expanded vehicle compartment side frame 202 are both lattice-like frame structures. Meanwhile, the interior of the expanded compartment can be used for placing various articles through a lattice structure.

In concrete implementation, a plurality of supporting plates 210 which are longitudinally spaced and horizontally distributed are respectively and vertically connected to the inner side surface of each expanded compartment main body frame 201, so that after the compartment space is expanded, articles such as mechanical equipment components and the like can be placed on the supporting plates 210. The plurality of support plates 210 further have partition plates vertically staggered with respect to each other.

In the utility model, in a specific implementation, the extended carriage-pushing electric cylinder assembly 5 is of a quadruple electric cylinder structure and specifically comprises four extended carriage-pushing electric cylinders 501;

two transversely distributed expansion carriages are respectively arranged at the front end and the rear end of the bottom of the electric cylinder mounting bracket 101 in a bilateral symmetry manner to push the electric cylinder 501;

note that the electric cylinder mounting bracket 101 is located inside the top of the main body compartment 1.

Each expansion carriage pushes the moving end provided outside the electric cylinder 501 to be connected to the inside of the adjacent expansion carriage 2 (specifically, the electric cylinder moving end mounting seat 209 on the top of the expansion carriage main body frame 201 in the expansion carriage 2).

In a specific implementation, a top baffle 206 which is vertically distributed is arranged at the top of each expanded compartment main body frame 201;

it should be noted that the electric cylinder moving end mounting seat 209 is mounted on the top beam of the expanded car body frame 201 (specifically, may be a bolt).

In the concrete implementation, both ends around the inboard of top baffle 206 at every extension carriage main body frame 201 top are provided with an electronic jar respectively and remove end mount pad 209 for install the extension carriage and promote the removal end that the electronic jar was promoted in the extension carriage promotion electric cylinder subassembly 5, as before, should expand the carriage and promote the electronic jar installing support 101 bottom that the electric cylinder subassembly 5 lies in the inboard welded in top of main body carriage 1.

In particular, in order to realize the linkage control of the four expanded carriages pushing the electric cylinder 501, the transmission control input end of the four expanded carriages pushing the electric cylinder 501 is linked and connected with the power output end of one servo motor 502.

In the concrete implementation, for the four extended carriage-pushing electric cylinders 501, the transmission control input ends arranged at the inner sides of the two extended carriage-pushing electric cylinders 501 at the rear are connected with the two output ends of the one-in two-out commutator 503;

the input end of the one-in two-out commutator 503 is connected with one output end of the one-in three-out commutator 506 through a connecting shaft 504 and a coupler 505;

the other two output ends of the one-in three-out commutator 506 are connected with transmission control input ends arranged at the inner sides of the two expansion carriage pushing electric cylinders 501 positioned in front;

the input end (i.e., the input end) of the one-in-three-out commutator 506 on the front side is connected to the power output end of the servo motor 502.

It should be noted that, for the electric cylinder 501 pushed by the expanded car, an existing well-known electric cylinder, such as various existing electric cylinders designed by using a screw pair transmission, may be used, and details are not described here.

In a specific implementation, when the connecting shafts 504 are multiple, two adjacent connecting shafts 504 are connected by a coupling 505. If the connecting shaft is too long, an auxiliary belt seat bearing 507 is arranged in the middle of the connecting shaft and is connected with the electric cylinder mounting bracket 101 through the auxiliary belt seat bearing 507, so that the stability during torque transmission can be ensured.

In particular, for each expansion carriage pushing the electric cylinder 501, an end face connection seat 508 is arranged on the outer end of the expansion carriage, and is connected with the bottom of the electric cylinder mounting bracket 101 through the end face connection seat 508.

In a specific implementation, for each expansion car pushing electric cylinder 501, the inner end of the expansion car is connected with the corresponding one-in two-out commutator 503 or one-in three-out commutator 506 through the existing commutator connecting seat 509.

In order to more clearly understand the technical solution of the present invention, the following describes the operation of the present invention.

Firstly, expanding the working mode.

For the vehicle-mounted expandable carriage provided by the utility model, the vehicle-mounted expandable carriage can be mounted on a trailer of an automobile or other traction mounting platforms, and can be rapidly unfolded after the automobile arrives at a destination, so that a larger working space can be provided, and the specific operation steps are as follows:

firstly, the extended carriages 2 on the left and right sides of the main body carriage 1 are pushed out in the outward direction synchronously by pushing the electric cylinder 501 through four extended carriages in the extended carriage pushing electric cylinder assemblies 5, so that the extended carriages 2 on the left and right sides are unfolded

Then, the four servo electric cylinders 4 are controlled by the servo electric cylinder 4 at the bottom of the expanded carriage 2, so that the pushable end plane of the servo electric cylinder 4 touches the ground, the four-corner leveling supporting operation of the expanded carriage 2 is completed, the expanded operation of the carriage is finally completed, and a larger working space can be provided for a user in the vehicle-mounted expandable carriage.

And secondly, a nesting (combination) working mode.

For the vehicle-mounted expandable carriage provided by the utility model, when various operations in the vehicle-mounted expandable carriage are finished and normal maneuvering movement along with the vehicle needs to be continued, the specific operation steps are as follows:

firstly, four servo electric cylinders 4 at the bottom of an expanded carriage 2 are controlled in a linkage manner, and four-corner leveling support legs (namely the push-out ends of the servo electric cylinders 4) are retracted;

then, four of the expanded car pushing electric cylinders 501 in the expanded car pushing electric cylinder assemblies 5 are controlled to simultaneously contract in the inward direction, so that the expanded cars 2 on the left and right sides are driven to retract along the car expanding openings 100 on the left and right sides of the main car 1 and are sleeved (combined) together again.

If the vehicle-mounted expandable carriage is not arranged on the transportation platforms such as the trailer, the vehicle-mounted expandable carriage can be hoisted to the transportation platforms such as the trailer through external equipment such as a crane.

It should be noted that, in the present invention, in consideration of the convenience of the use mode and the transportation mode and the economic efficiency of development, the vehicle-mounted expandable car is used as the main platform, and the internal space of the platform is expanded by the expanded car structure, in order to restrict the miniaturization and the lightweight layout of the expanded car structure. In order to more reasonably and fully utilize the limited space, an electric cylinder structure is adopted, and the space is created for each functional module through the push-pull of the electric cylinder, and the actions such as the unfolding of the left and right side carriages, the leveling and supporting of four corners and the like are realized by adopting the cooperative work of a plurality of electric cylinders.

As can be seen from the above technical solutions, according to the present invention, the interior space of the vehicle compartment is expanded by the unfolded vehicle compartment structure, so that various articles can be disposed in the vehicle compartment, and various machining operations can be performed.

According to the utility model, the carriage is divided into a main carriage, a left side expansion carriage and a right side expansion carriage, and the driving is realized through multiple cylinders. In the transport state, the main body compartment and the left and right side compartments are in an engaged (i.e., combined) state. In order to more reasonably and fully utilize the limited space, an electric cylinder structure is adopted, and the space is created for each functional module through pushing and pulling of the electric cylinder. The actions such as unfolding of the left and right side compartments, leveling and supporting of four corners and the like are realized by adopting the cooperation of multiple cylinders.

In the present invention, when various operations such as assembling of equipment components and the like are required to be performed in the interior of the vehicle, the left and right sides of the vehicle are pushed out by the electric cylinder to be in the expanded state, and the entire width of the vehicle in the expanded state is 1.5 to 2 times as large as that before the expansion as compared with the interior space of the vehicle in the transport state.

Compared with the prior art, the vehicle-mounted expandable carriage provided by the utility model has the following beneficial effects:

1. the carriage not only can provide a larger moving space, but also has convenient and reliable forking, hoisting and transferring interfaces;

2. when the carriage runs normally along with the automobile, the main carriage and the left and right extended carriages are in a sleeved state, so that the road running requirement is met;

3. according to the carriage, when a user needs to perform various operations such as equipment assembly operation and the like in the carriage, which occupy larger space, the electric cylinder in the electric cylinder assembly is pushed by the expanded carriage, so that the expanded carriages on the left and right sides of the main carriage can be pushed out and quickly expanded, a larger working space can be provided, and the whole width of the carriage is 1.5 times to 2 times of that before expansion;

4. after the carriage is unfolded, the four-corner leveling supporting action is realized through the cooperation of the multiple electric cylinders;

5. the carriage can perform accurate linkage control on a plurality of electric cylinders to complete a multi-cylinder coordination task.

6. For each electric cylinder in the utility model, each electric cylinder (specifically, a servo motor in the electric cylinder) can be controlled independently and can also be coordinated to work in a unified way, so that a multi-electric cylinder coordination task is completed.

In summary, compared with the prior art, the vehicle-mounted expandable carriage provided by the utility model has a scientific structural design, can conveniently and reliably expand the internal space of the carriage when the carriage stays at the destination, so that a user can conveniently perform various operations with large occupied space, such as equipment assembly assembling operation, in the carriage, and the like, and has great practical significance.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A vehicle-mounted expandable carriage is characterized by comprising a hollow main body carriage (1) which is longitudinally distributed;

the left side and the right side of the main body compartment (1) are respectively provided with a compartment expansion port (100) which is longitudinally distributed;

each carriage expansion port (100) is respectively provided with an expansion carriage (2) which can move transversely and leftwards and rightwards;

the left side and the right side of the front end of the main body compartment (1) are respectively provided with an openable compartment door (6);

the shape of the main body compartment (1) is a cuboid shape;

electric cylinder mounting brackets (101) which are longitudinally distributed are welded on the inner side of the top of the main body compartment (1);

the electric cylinder mounting bracket (101) is positioned between the two carriage expansion ports (100);

the left end and the right end of the electric cylinder mounting bracket (101) are respectively arranged corresponding to the two carriage expansion ports (100);

the bottom of the electric cylinder mounting bracket (101) is provided with an expansion carriage pushing electric cylinder assembly (5);

the left end and the right end of the electric cylinder component (5) are pushed by the expansion carriage and are respectively connected with one expansion carriage (2);

and the expansion carriage pushing electric cylinder assembly (5) is used for pushing the two expansion carriages (2) to transversely move left and right in the carriage expansion port (100).

2. The vehicle-mounted expandable car according to claim 1, wherein for the main body car (1), the front and rear ends of the bottom left side and the front and rear ends of the bottom right side of the electric cylinder mounting bracket (101) are respectively welded with a transversely distributed hanger rail (1001);

the four carriage side vertical beams (103) are vertically and fixedly arranged in the main carriage (1);

the front side and the rear side of each carriage expansion opening (100) are respectively connected with the outer side of a carriage side vertical beam (103);

for two carriage side vertical beams (103) positioned in the front and rear sides of the carriage expansion opening (100), a first bearing mounting seat (104) and a first idler guide rail (105) are respectively arranged at the upper end and the lower end of the opposite side and are used for connecting the upper end and the lower end of the outer side of a scissor fork structure (3).

3. The vehicle-mounted expandable car according to claim 1, wherein the four corners of the top of the main car (1) are respectively provided with an upper hoisting interface (1010);

the four corners of the bottom of the main body compartment (1) are respectively provided with a bottom hoisting interface (102);

the center positions of the upper hoisting interface (1010) and the bottom hoisting interface (102) are provided with hoisting holes.

4. The vehicle-mounted expandable car according to claim 2, wherein two expansion cars (2) each comprise a longitudinally distributed expansion car body frame (201);

two expanded compartment main body frames (201) which are distributed symmetrically left and right;

the front end and the rear end of the inner side of each expanded compartment main body frame (201) are respectively and vertically connected with an expanded compartment side frame (202) which is transversely distributed, and the upper parts of the opposite sides of the two expanded compartment side frames (202) are connected through a hanging rail pulley mounting beam (2001) which is longitudinally distributed;

the outer surface of each expanded compartment main body frame (201) and the outer surface of the expanded compartment side surface frame (202) connected with the expanded compartment main body frame are covered with a composite plate (203) with a skin;

the front end and the rear end of the top of each hanging rail pulley mounting beam (2001) are respectively provided with a hanging rail pulley (207);

and the upper end and the lower end of the inner side of the expanded carriage side frame (202) are respectively provided with a second bearing mounting seat (204) and a second idler wheel guide rail (205) which are used for connecting the upper end and the lower end of the inner side of a scissor fork structure (3).

5. The vehicle-mounted expandable car according to claim 4, wherein the lateral length of each of the expansion car side frames (202) is less than or equal to one-half of the lateral length of the main car (1).

6. The vehicle-mounted expandable car according to claim 4, wherein the scissor structure (3) is located between the side frame (202) of the expanded car and the side vertical beams (103) inside the main body car (1);

two sides of the scissors structure (3) are respectively connected with the adjacent side frame (202) of the expanded carriage and the side vertical beam (103) in the main carriage (1).

7. The vehicle-mounted expandable car according to claim 6, wherein the scissor structure (3) comprises a first cross connecting rod (31) and a second cross connecting rod (32) which are distributed in a cross manner;

the middle parts of the first cross connecting rod (31) and the second cross connecting rod (32) are hinged;

the upper ends of the first cross connecting rod (31) and the second cross connecting rod (32) are respectively provided with a bearing (33) with a seat;

the bottom ends of the first cross connecting rod (31) and the second cross connecting rod (32) are respectively pivoted with an idler wheel (34);

the upper end and the lower end of the outer side of the scissor structure (3) are provided with a bearing (33) with a seat and an idler wheel (34), which are respectively and correspondingly connected with a first bearing mounting seat (104) and a first idler wheel guide rail (105) in the carriage side vertical beam (103);

the upper end and the lower end of the inner side of the scissor structure (3) are provided with a bearing (33) with a seat and an idler wheel (34) which are respectively and correspondingly connected with a second bearing mounting seat (204) and a second idler wheel guide rail (205) in the side frame (202) of the expanded compartment.

8. The vehicle-mounted expandable car according to claim 4, wherein for two expansion car side frames (202) connected with the front end and the rear end of each expansion car main body frame (201), a servo electric cylinder mounting seat (208) is welded on the lower part of the opposite side of each expansion car side frame (202);

each servo electric cylinder mounting seat (208) is provided with a servo electric cylinder (4).

9. The vehicle-mounted expandable car according to any of the claims 1 to 8, characterized in that the expanded car pushing electric cylinder assembly (5), in particular comprising four expanded car pushing electric cylinders (501);

two expansion carriages which are transversely distributed are symmetrically arranged at the front end and the rear end of the bottom of the electric cylinder mounting bracket (101) to push the electric cylinders (501);

the electric cylinder mounting bracket (101) is positioned on the inner side of the top of the main body compartment (1);

each expansion carriage pushes a moving end arranged on the outer side of the electric cylinder (501) to be connected with the inner side of the adjacent expansion carriage (2).

10. The vehicle-mounted expandable car according to claim 9, wherein the transmission control input ends of the four expandable cars push the electric cylinders (501) and are linked with the power output end of a servo motor (502);

for the four extended carriage pushing electric cylinders (501), the transmission control input ends arranged at the inner sides of the two extended carriage pushing electric cylinders (501) positioned at the rear are connected with two output ends of a one-in two-out commutator (503);

the input end of the one-in two-out commutator (503) is connected with one output end of the one-in three-out commutator (506) through a connecting shaft (504) and a coupling (505);

the other two output ends of the one-in three-out commutator (506) are connected with transmission control input ends arranged at the inner sides of two expansion carriage pushing electric cylinders (501) positioned in front;

the input end of the front side of the one-in three-out commutator (506) is connected with the power output end of the servo motor (502).

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