CN217396353U - Hydraulic cylinder backward-pushing carriage with return device and vehicle - Google Patents

Hydraulic cylinder backward-pushing carriage with return device and vehicle Download PDF

Info

Publication number
CN217396353U
CN217396353U CN202220962488.6U CN202220962488U CN217396353U CN 217396353 U CN217396353 U CN 217396353U CN 202220962488 U CN202220962488 U CN 202220962488U CN 217396353 U CN217396353 U CN 217396353U
Authority
CN
China
Prior art keywords
carriage
oil cylinder
push plate
cylinder
return
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202220962488.6U
Other languages
Chinese (zh)
Inventor
邱承刚
庞喜波
邱显坤
邱显赫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Tonghua Special Vehicle Co ltd
Original Assignee
Shandong Tonghua Special Vehicle Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Tonghua Special Vehicle Co ltd filed Critical Shandong Tonghua Special Vehicle Co ltd
Priority to CN202220962488.6U priority Critical patent/CN217396353U/en
Application granted granted Critical
Publication of CN217396353U publication Critical patent/CN217396353U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, including carriage, push pedal, hydro-cylinder and return means, the push pedal transversely sets up in the inside in carriage, its characterized in that: the oil cylinder is a one-way acting oil cylinder, the front end of the carriage is fixedly provided with an oil cylinder front base, the rear end of the oil cylinder is hinged with the push plate through an oil cylinder and push plate connecting pin shaft, and the front end of the oil cylinder is hinged on the oil cylinder front base; the return device is arranged at the front end of the carriage and is connected with the push plate through a steel wire rope; the return device pulls the push plate to move from back to front by winding the steel wire rope so as to realize the return of the push plate. The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder owing to adopted one-way hydro-cylinder, required oil pressure when having reduced to unload, convenient return has both reduced manufacturing cost, has reduced manufacturing process, has reduced weight, has solved the installation difficulty again, has also significantly reduced because of the huge cost that brings after sale, and beneficial effect is showing.

Description

Hydraulic cylinder backward-pushing carriage with return device and vehicle
Technical Field
The utility model relates to a carriage and vehicle, more specifically the theory that says so especially relates to a shallow carriage and vehicle behind hydraulic cylinder with return means.
Background
At present, in the transportation industry, in a vehicle model using an oil cylinder for pushing back, an existing hydraulic oil cylinder is a bidirectional acting oil cylinder, so that the function of extending to push a push plate to unload materials can be realized, and the function of reversely flowing an oil way and retracting an oil cylinder rod can also be realized after unloading the goods.
Disclosure of Invention
The utility model discloses an overcome above-mentioned technical problem's shortcoming provides a shallow railway carriage or compartment and vehicle behind hydraulic cylinder with return means.
The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, including carriage, push pedal, hydro-cylinder and return means, the inside of carriage is the cavity of storage goods, and the rear end of carriage is provided with the back door, and the push pedal transversely sets up in the inside of carriage, and the goods in the carriage are lifted off from the back door to the push pedal in the process of the front-to-back motion; the method is characterized in that: the oil cylinder is a one-way oil cylinder, the front end of the carriage is fixedly provided with an oil cylinder front base, the rear end of the oil cylinder is hinged with the push plate through an oil cylinder and push plate connecting pin shaft, and the front end of the oil cylinder is hinged on the oil cylinder front base; the return device is arranged at the front end of the carriage and is connected with the push plate through a steel wire rope; the telescopic link extension of hydro-cylinder is used for ordering about the push pedal and unloads by preceding to the back motion, and return means realizes the push pedal return by the backward forward motion through the winding pulling push pedal to wire rope.
The utility model discloses a hydraulic cylinder rear pushing carriage with a return device, a cylinder base mounting rack is fixed on the push plate, and the end of a steel wire rope is fixedly connected with the push plate or the cylinder base mounting rack through a steel wire rope and a push plate connecting shaft; the side of the oil cylinder base mounting frame is provided with a carriage middle guide limiting wheel, two side walls of the carriage are provided with carriage middle guide limiting grooves consistent with the length direction of the carriage, and the carriage middle guide limiting wheel is located in the carriage middle guide limiting grooves.
The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, the bottom of hydro-cylinder base mounting bracket is fixed with push pedal lower part direction stopper, and the both sides of the upper end of hydro-cylinder base mounting bracket all are provided with carriage upper portion direction stopper.
The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, including hydro-cylinder protection device, hydro-cylinder protection device is by the fixing base, support the horizontal pole and support the montant and constitute, and the fixing base is fixed in the front end of hydro-cylinder telescopic link, and the both sides of fixing base all are fixed with the horizontally and support the horizontal pole, all are fixed with support montant down on supporting horizontal pole and the fixing base, and the end of supporting the horizontal pole is provided with the side supporting wheel that the top touched on the carriage lateral wall, and the lower extreme of supporting the montant is fixed with the bottom suspension strut that the top touched on the carriage bottom plate.
The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, include the hydraulic system who comprises oil tank, distributing valve, filter equipment and oil pipe, the oil tank is connected with the distributing valve through oil pipe, and the distributing valve is connected with the hydro-cylinder through oil pipe, and filter equipment sets up on oil pipe.
The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, the push pedal lower part is provided with outstanding hydro-cylinder guard shield in its rear end face, and the cylinder body of hydro-cylinder is located the hydro-cylinder guard shield.
The utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder with return means, return means is one or more, return means sets up in the left side of hydro-cylinder, right side or below.
The utility model discloses a vehicle with a return device and a hydraulic oil cylinder backward-pushing carriage, which comprises a frame, a carriage, a suspension, an axle and wheels, wherein the carriage is arranged on the frame, the suspension is arranged at the bottom of the frame, and the wheels are arranged on the suspension through the axle; the carriage adopts a hydraulic oil cylinder rear cart carriage with a return device, and comprises a carriage, a push plate, an oil cylinder and the return device, wherein a cavity for storing goods is arranged inside the carriage, a rear door is arranged at the rear end of the carriage, the push plate is transversely arranged inside the carriage, and the goods in the carriage are unloaded from the rear door in the process of the forward-backward movement of the push plate; the method is characterized in that: the oil cylinder is a one-way acting oil cylinder, the front end of the carriage is fixedly provided with an oil cylinder front base, the rear end of the oil cylinder is hinged with the push plate through an oil cylinder and push plate connecting pin shaft, and the front end of the oil cylinder is hinged on the oil cylinder front base; the return device is arranged at the front end of the carriage and is connected with the push plate through a steel wire rope; the telescopic link extension of hydro-cylinder is used for ordering about the push pedal by preceding to the back motion and unloads, and return means realizes the push pedal return by the back forward motion through the winding pulling push pedal to wire rope.
The utility model has the advantages that: the utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder through set up push pedal, hydro-cylinder and return means on the relevant position in carriage, and the hydro-cylinder be the one-way effect hydro-cylinder, orders about the push pedal under hydraulic system's effect and by the motion of carriage front end to the rear end, can unload the goods in carriage from the back door, then through the forward movement of return means pulling the push pedal to realize the push pedal return. It can be seen that, the utility model discloses a shallow railway carriage or compartment behind hydraulic cylinder owing to adopted one-way hydro-cylinder, required oil pressure when having reduced to unload, convenient return has both reduced manufacturing cost, has reduced manufacturing process, has reduced weight, has solved the installation difficulty again, has also significantly reduced because of the huge cost that brings after sale, and beneficial effect is showing.
Drawings
Fig. 1 is a front view of a hydraulic cylinder rear cart compartment of the present invention;
FIG. 2 is a left side view of the hydraulic cylinder rear cart box of the present invention;
fig. 3 is a top view of the hydraulic cylinder rear push carriage of the present invention;
FIG. 4 is a cross-sectional view of section A-A of FIG. 2;
fig. 5 and 6 are perspective views of the hydraulic oil cylinder rear pushing carriage of the utility model;
fig. 7 is a schematic structural view of the middle return device of the present invention below the oil cylinder;
FIG. 8 is a schematic structural view of the present invention using two return devices;
FIG. 9 is a schematic view of the structure of the present invention using a return device and located below the oil cylinder;
fig. 10 is a schematic view of the middle compartment of the present invention being rectangular and provided with two return devices;
FIG. 11 is a schematic view of the utility model with a round carriage and two return devices;
fig. 12 is a partially enlarged view of the area a in fig. 5.
In the figure: 1 oil cylinder front base, 2 oil cylinders, 3 oil cylinder and push plate connecting pin shafts, 4 push plates, 5 carriages, 6 oil cylinder base mounting frames, 7 returning devices, 8 steel wire ropes, 9 steel wire rope and push plate connecting shafts, 10 frames, 11 oil cylinder rear bases, 12 carriage upper side beams, 13 push plate lower part guide limiting blocks, 14 carriage upper part guide limiting blocks, 15 carriage middle guide limiting wheels, 16 carriage middle guide limiting grooves, 17 oil cylinder shields, 18 carriage rear columns, 19 rear door lifting systems, 20 rear doors, 21 lower supporting wheels, 22 side supporting wheels, 23 distribution valves, 24 filtering devices, 25 oil tanks, 26 oil cylinder telescopic rods, 27 fixing seats, 28 supporting cross rods and 29 supporting vertical rods.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a front view, left side view and plan view of shallow railway carriage or compartment behind hydraulic cylinder are given respectively, fig. 4 gives the cross-section view of A-A cross-section in fig. 2, fig. 5 and fig. 6 all give its stereogram, shallow railway carriage or compartment behind shown hydraulic cylinder comprises carriage 5, push pedal 4, hydro-cylinder 2, return means 7, wire rope 8, hydro-cylinder base mounting bracket 6 and hydraulic system, the inside of carriage 5 is the cavity of storage goods, carriage 5 sets up on frame 10, in order to form firm carriage structure, carriage 5 comprises lower boundary beam, carriage roof beam 12, carriage rear column 18, front column and railway carriage board. The push plate 4 is transversely arranged in the carriage 5, the rear end of the oil cylinder 2 is hinged with the push plate 4 through an oil cylinder and push plate connecting pin shaft 3, the front end of the oil cylinder 2 is hinged to the oil cylinder front base 1, the oil cylinder front base 1 is fixed on a frame 10 at the front end of the carriage 5, and in the process that the oil cylinder 2 moves from the front end of the carriage to the rear end under the driving action of a hydraulic system, goods in the carriage 5 can be unloaded from a carriage rear door 20.
The return device 7 is fixed on a frame 10 at the front end of the carriage 5, the return device 7 adopts a hydraulic motor or a motor, one end of the steel wire rope 8 is fixed and wound on the return device 7, and the other end of the steel wire rope is fixedly connected with the push plate 4 through the steel wire rope and the push plate connecting shaft 9, so that after the push plate 4 is pushed to the rear end of the carriage 5 to finish discharging, the return device 7 pulls the push plate 4 to return to the front end of the carriage from the rear end of the carriage through winding of the steel wire rope 8 so as to reload cargos and subsequently discharge.
The rear end face of the push plate 4 towards the rear end of the carriage is an inclined face, the push plate 4 is fixed with an oil cylinder base mounting frame 6 towards the end face of the front end of the carriage 5, and firmness of the push plate 4 can be effectively improved by additionally arranging the oil cylinder base mounting frame 6. The oil cylinder and push plate connecting pin shaft 3 and the steel wire rope and push plate connecting shaft 9 can be fixed on the oil cylinder base mounting frame 6. The two sides of the shown oil cylinder base mounting frame 6 are provided with two carriage middle guide limiting wheels 15, two inner walls of the carriage 5 are provided with carriage middle guide limiting grooves 16, the carriage middle guide limiting wheels 15 are arranged in the carriage middle guide limiting grooves 16, and therefore the guide and the limitation in the motion process of the push plate 4 can be realized through the rolling of the carriage middle guide limiting wheels 15 in the carriage middle guide limiting grooves 16, and the stability of the motion of the push plate is facilitated. The lower part of the oil cylinder base mounting frame 6 is provided with a plurality of push plate lower part guiding limiting blocks 13, the upper part of the oil cylinder base mounting frame is provided with a carriage upper part guiding limiting block 14, and limiting and guiding of the push plate 4 in the motion process are further achieved.
In general, the length of the carriage 5 is long (usually more than 7 m), which requires that the length of the telescopic rod of the oil cylinder 2 after being completely extended is long, and the oil cylinder with the long telescopic rod may be bent to some extent in the long-term working process, so as to affect the normal working and the service life of the oil cylinder 2, and therefore, an oil cylinder protection device for preventing the oil cylinder from being bent is provided.
As shown in fig. 12, the cylinder protection device is composed of a fixed seat 27, a supporting cross bar 28, a supporting vertical bar 29, a lower supporting wheel 21 and a side supporting wheel 22, wherein the fixed seat 27 is sleeved at the front end of the cylinder telescopic rod 26 and fixed, so that the normal extension and retraction of the cylinder telescopic rod 26 are not affected because the fixed seat 17 is fixed at the front end of the cylinder telescopic rod 26. The two sides of the fixed seat 27 are both fixed with a supporting cross bar 28, and the outer end of the supporting cross bar 28 is fixed with a side supporting wheel 22 supported on the inner wall of the carriage 5. The supporting cross rod 28 and the fixing seat 17 are both fixed with downward supporting vertical rods 29, and the lower ends of the supporting vertical rods 29 are fixed with lower supporting wheels 21 supported on the bottom plate of the carriage 5, so that in the telescopic process of the oil cylinder 2, the lower supporting wheels 21 and the side supporting wheels 22 respectively move on the bottom plate and the side walls of the carriage 5 and always support the oil cylinder telescopic rod 26, the oil cylinder telescopic rod 26 is prevented from being bent, and the normal telescopic of the oil cylinder 2 is ensured and the service life of the oil cylinder is prolonged.
The return device 7 is driven by a hydraulic or electric motor as a power source, and is driven by a hydraulic motor or an electric motor when the return device is driven by the electric motor. The frame 10 at the front end of the carriage 5 is shown provided with a hydraulic system, which consists of an oil tank 25, a distribution valve 23, a filter device 24 and oil pipes, wherein the oil tank 25 is connected with the distribution valve 23 through the oil pipes, the distribution valve 23 is connected with the oil cylinder 2 through the oil pipes, and the filter device 24 is arranged on the oil pipes. The hydraulic system provides power source for the oil cylinder 2 and the return device 7 when adopting a hydraulic motor.
The number of the return devices 7 is one or two, the return devices 7 can be arranged on one side or two sides of the oil cylinder 2, or can be arranged above or below the oil cylinder 2, as shown in fig. 7, the return devices 7 are arranged below the oil cylinder 2, and the number of the return devices 7 in fig. 1-6 is one and is arranged on one side of the oil cylinder 2. The number of the returning devices 7 shown in fig. 8 is two and they are respectively arranged at both sides of the cylinder 2, and the number of the returning devices 7 shown in fig. 9 is one and they are arranged below the cylinder 2. The shape of the carriage 5 is not limited, the cross section of the carriage 5 shown in fig. 10 is rectangular, 4 corners of the carriage are all arc-shaped transitions, and the number of the return devices 7 in fig. 10 is 2. The cross section of the car 5 shown in fig. 11 is operational, the number of return devices 7 in fig. 11 also being 2.
The hydraulic oil cylinder rear trolley carriage with the return device and the vehicle are not limited to hydraulic power return in protection, the size of the hydraulic device is not limited in protection, and the function of returning a heavy trolley can be realized; not limited to electric power return; the size of the electric device is not limited to be protected, and the return function of the heavy vehicle can be realized; the device is not limited to various vehicles, and is suitable for various vehicles, semitrailers, special vehicles and special vehicles, and the combination of an independent carriage and a container semitrailer; the appearance of the carriage is not limited, and the carriage is suitable for carriages with various appearances, vertical corrugated structures, horizontal tile structures, tank-shaped structures, flat plates and bent pieces, and various appearance carriages combined by the flat plates and pipes. The carriage is not limited to carriages with various shapes, such as square, round, rectangular and round carriages with various irregular shapes; the installation position, the number and the size of the return devices are not limited; the oil cylinder is not limited to be installed in various types and sizes; the size, the position and the number of the supporting wheels of the oil cylinder guide supporting rod are not limited; and is not limited to the pattern, size, or shape of the pusher plate.
The number of the oil cylinders is not limited, and the oil cylinders are combined for use, such as a single-stage oil cylinder, a double-stage oil cylinder, a multi-stage oil cylinder and the like; the use right is not limited to the front door style and the rear door style; protection not limited to use and location installation of dispensing valves, filtration devices, fuel tank devices or in-store devices; the use right that the return device is arranged on the upper part of the oil cylinder or on the lower part of the oil cylinder is not limited; the use right is not limited to the style, size, number and installation position of the push plate guide limiting device; the structure is not limited to a hollow type bottom plate structure, a full-sealing bottom plate structure and frame bottom plate structures in various combination modes such as a tile bottom plate and the like; style and structural use not limited to header style; the design of the structure such as the style, the size, the gradient and the like of the push plate is not limited; not limited to the wire rope, or the pattern and number of the chains.

Claims (8)

1. A hydraulic oil cylinder rear trolley carriage with a return device comprises a carriage (5), a push plate (4), an oil cylinder (2) and the return device (7), wherein a cavity for storing goods is formed inside the carriage, a rear door (20) is arranged at the rear end of the carriage, the push plate is transversely arranged inside the carriage, and the goods in the carriage are unloaded from the rear door in the process of front-to-rear movement of the push plate; the method is characterized in that: the oil cylinder (2) is an oil cylinder with a one-way effect, the front end of the carriage is fixedly provided with an oil cylinder front base (1), the rear end of the oil cylinder is hinged with the push plate (4) through an oil cylinder and push plate connecting pin shaft (3), and the front end of the oil cylinder is hinged on the oil cylinder front base (1); the return device (7) is arranged at the front end of the carriage and is connected with the push plate (4) through a steel wire rope (8); the telescopic link extension of hydro-cylinder is used for ordering about the push pedal by preceding to the back motion and unloads, and return means realizes the push pedal return by the back forward motion through the winding pulling push pedal to wire rope.
2. The hydraulic oil cylinder back pushing carriage with the return device as claimed in claim 1, characterized in that: an oil cylinder base mounting frame (6) is fixed on the push plate (4), and the tail end of a steel wire rope (8) is fixedly connected with the push plate (4) or the oil cylinder base mounting frame through a steel wire rope and push plate connecting shaft (9); the side of the oil cylinder base mounting frame (6) is provided with a carriage middle guide limiting wheel (15), two side walls of the carriage (5) are provided with carriage middle guide limiting grooves (16) consistent with the length direction of the carriage middle guide limiting wheels, and the carriage middle guide limiting wheel (15) is located in the carriage middle guide limiting groove (16).
3. The hydraulic oil cylinder back pushing carriage with the return device as claimed in claim 2, characterized in that: the bottom of the oil cylinder base mounting frame (6) is fixed with a push plate lower part guide limiting block (13), and carriage upper part guide limiting blocks (14) are arranged on two sides of the upper end of the oil cylinder base mounting frame (6).
4. The hydraulic oil cylinder rear pushing carriage with the return device as claimed in claim 1 or 2, characterized in that: including the hydro-cylinder protection device, the hydro-cylinder protection device comprises fixing base (27), support horizontal pole (28) and support montant (29), the fixing base is fixed in the front end of hydro-cylinder telescopic link (26), the both sides of fixing base all are fixed with horizontally support horizontal pole (28), all be fixed with support montant (29) down on support horizontal pole and the fixing base, the end of support horizontal pole is provided with the top and touches side supporting wheel (22) on carriage (5) lateral wall, the lower extreme of support montant is fixed with the top and touches lower support wheel (21) on the carriage bottom plate.
5. The hydraulic ram pushback carriage with return means according to claim 1 or 2, characterized in that: the oil tank is connected with the distribution valve through the oil pipe, the distribution valve is connected with the oil cylinder (2) through the oil pipe, and the filtering device is arranged on the oil pipe.
6. The hydraulic ram pushback carriage with return means according to claim 1 or 2, characterized in that: the lower part of the push plate (4) is provided with an oil cylinder protective cover (17) protruding out of the rear end face of the push plate, and the cylinder body of the oil cylinder (2) is positioned in the oil cylinder protective cover (17).
7. The hydraulic ram pushback carriage with return means according to claim 1 or 2, characterized in that: the number of the return devices (7) is one or more, and the return devices (7) are arranged on the left side, the right side or the lower side of the oil cylinder (2).
8. The utility model provides a vehicle that pushes away carriage behind hydraulic cylinder with return means which characterized in that: the electric bicycle comprises a frame (10), a carriage, a suspension, an axle and wheels, wherein the carriage is arranged on the frame, the suspension is arranged at the bottom of the frame, and the wheels are arranged on the suspension through the axle; the vehicle compartment of claim 1.
CN202220962488.6U 2022-04-25 2022-04-25 Hydraulic cylinder backward-pushing carriage with return device and vehicle Active CN217396353U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220962488.6U CN217396353U (en) 2022-04-25 2022-04-25 Hydraulic cylinder backward-pushing carriage with return device and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220962488.6U CN217396353U (en) 2022-04-25 2022-04-25 Hydraulic cylinder backward-pushing carriage with return device and vehicle

Publications (1)

Publication Number Publication Date
CN217396353U true CN217396353U (en) 2022-09-09

Family

ID=83143255

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220962488.6U Active CN217396353U (en) 2022-04-25 2022-04-25 Hydraulic cylinder backward-pushing carriage with return device and vehicle

Country Status (1)

Country Link
CN (1) CN217396353U (en)

Similar Documents

Publication Publication Date Title
US5051046A (en) Semi trailer convertible for hauling automobiles
CN204198338U (en) A kind of vehicle-mounted floating formula vehicle maintenance and repair lifting machine
CN105329803A (en) Vehicle-mounted flow type automobile maintenance lifting machine
CN217396353U (en) Hydraulic cylinder backward-pushing carriage with return device and vehicle
US5527138A (en) Semi-trailer for automotive vehicle transportation
CN110884407B (en) Semitrailer reequiping is with pulling dolly
AU582544B2 (en) A support assembly
CN111452813B (en) Middle underframe lifting device for automobile-container dual-purpose concave bottom transport vehicle
CN109532620A (en) Land commutative case automobile and handling method
US2004439A (en) Automobile loading and carrying means
CN217227415U (en) Car rear bucket equipment for lifting and carrying car roof tent
CN202480938U (en) Flat-bottom compartment of horizontal sliding dumper
CN212738065U (en) Fast-transport movable side wall box wagon with large side opening door
CN209739102U (en) Jacking device and cage vehicle applying same
CN217227414U (en) Electric lifting vehicle-mounted luggage rack
CN111942410A (en) Fast-transport movable side wall box wagon with large side opening door
CN212685133U (en) Automobile rear trailer with multiple storage spaces
CN212023583U (en) Vehicle transportation frame used in container
RU60039U1 (en) CAR TRANSPORT FOR CARRIAGE OF PASSENGER CARS
CN212500069U (en) Vehicle protection device mounted on cargo compartment of mining dump truck and mining dump truck
CN205131048U (en) Precast concrete spare transport vechicle
CN208746858U (en) A kind of material frame for holding vehicles bumper spare part
CN112297997A (en) Two rows of shared bicycle transport vechicles of putting
CN216969849U (en) Embedded towed skip
CN109532619A (en) Land loading and unloading type exchange vehicle and handling method

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant