CN118306460A - Transfer trolley - Google Patents

Abstract

The invention relates to the technical field of transportation means, and provides a transfer trolley which is used for transporting goods and moves in a traction way through a tractor, and comprises the following components: the vehicle body is provided with a mounting platform; the goods shelf is arranged on the mounting platform and is provided with a storage space; the lifting piece is arranged on the goods shelf; the expansion plate is hinged to the lifting piece, the expansion plate is located in the storage space, and the lifting piece is used for driving the expansion plate to longitudinally move along the storage space. Through above-mentioned technical scheme, solved the problem that most transfer trolley among the correlation technique does not have space expansion function, transfer trolley transportation ability is poor.

Description

Transfer trolley

Technical Field

The invention relates to the technical field of transportation means, in particular to a transfer trolley.

Background

The transfer trolley is mechanical equipment widely applied to various fields of industrial production, logistics transportation, warehouse management and the like, and has the main functions of being used for carrying and transferring various articles such as goods, heavy equipment, raw materials, parts and the like. Transfer trolleys are generally classified into self-transfer trolleys and traction transfer trolleys.

In daily use, the transfer trolley generally needs to transport articles with larger body shapes or transport more articles at a time, especially the transfer trolley for carrying out the transportation work indoors has smaller volume, less articles to be carried at a time, most of the transfer trolley does not have a space expansion function, and the practicability is poor.

Disclosure of Invention

The invention provides a transfer trolley, which solves the problem that most transfer trolleys in the related art do not have a space expansion function and have poor transportation capability.

The technical scheme of the invention is as follows:

Transfer trolley for transport goods, transfer trolley pulls the removal through the tractor, include:

The vehicle body is provided with a mounting platform;

The goods shelf is arranged on the mounting platform and is provided with a storage space;

The lifting piece is arranged on the goods shelf;

the expansion plate is hinged to the lifting piece, the expansion plate is located in the storage space, and the lifting piece is used for driving the expansion plate to longitudinally move along the storage space.

Preferably, the vehicle body includes:

the upper surface of the frame is provided with the mounting platform;

the first bridge is rotationally arranged at the bottom of the frame;

the second bridge is rotationally arranged at the bottom of the frame, and the first bridge and the second bridge are arranged in parallel;

the wheels are respectively arranged on the first bridge frame and the second bridge frame;

One end of the connecting rod is hinged to the first bridge frame, the other end of the connecting rod is hinged to the second bridge frame, and the connecting rod is obliquely arranged along the horizontal direction;

And one end of the traction part is arranged on the tractor, the other end of the traction part is arranged on the first bridge frame, and after the traction part deflects along the horizontal direction, the first bridge frame drives the second bridge frame to deflect through the connecting rod.

Preferably, the shelf includes:

the bottom plate is arranged on the mounting platform;

The enclosing baffle is arranged on the periphery of the bottom plate, and the object placing space is formed between the enclosing baffle and the bottom plate;

the enclosure includes:

The fixed cylinders are provided with a plurality of fixed cylinders, and the fixed cylinders are respectively arranged at the corners of the bottom plate;

the telescopic rod is movably arranged in the fixed cylinder;

The clamping piece is arranged on the telescopic rod, and the telescopic rod is clamped with the fixed cylinder through the clamping piece.

Preferably, the telescopic rod is far away from the one end of the fixed cylinder has a connecting groove, and further includes:

the reinforcing rods are arranged in the connecting grooves, each reinforcing rod is detachably arranged between the adjacent telescopic rods, and the end parts of the reinforcing rods are arranged in the connecting grooves;

The baffle has a plurality of, every the baffle articulates in between the adjacent fixed cylinder, the baffle to the bottom plate outside after expansion with bottom plate upper surface parallel and level.

Preferably, the lifting member includes:

The upright post is provided with an accommodating groove and is longitudinally arranged at one side of the bottom plate;

the expansion plate is arranged on the first driving piece, and the first driving piece is used for driving the expansion plate to expand or cancel expanding;

the second driving piece is arranged in the accommodating groove, the first driving piece is arranged on the second driving piece, and the second driving piece drives the first driving piece to longitudinally move along the upright post.

Preferably, the expansion board comprises:

the plate body is in a frame shape, and two sides of the plate body are provided with connecting parts;

the mounting seat is arranged on one side, close to the first driving piece, of the plate body and is hinged to the first driving piece.

Preferably, the traction portion includes:

one end of the traction rod is arranged on the first bridge, and the other end of the traction rod is provided with a clamping groove;

One end of the traction head is clamped in the clamping groove, and the other end of the traction head is arranged on the traction vehicle.

Preferably, the traction head comprises:

A frame having a limit portion;

the elastic rod is arranged on the limiting part in a sliding penetrating way, one end of the elastic rod is arranged in the clamping groove, and the other end of the elastic rod is arranged on the tractor;

The buffer is arranged on one side of the frame and hinged to the elastic rod, and the buffer is used for slowing down the deformation speed of the elastic rod.

Preferably, the frame has a chute, and the elastic rod includes:

The movable rod penetrates through the limiting part in a sliding manner;

the limiting bulge is fixedly sleeved on the movable rod;

One end of the spring is abutted with the limiting protrusion, and the other end of the spring is abutted with the limiting part;

The sliding rod is arranged in the sliding groove in a sliding way, the limiting protrusion is arranged on the side wall of the sliding rod, and the sliding rod is clamped in the clamping groove;

The connector is arranged at one end of the movable rod away from the sliding rod, and the connector is detachably arranged on the tractor.

Preferably, the buffer includes:

The damper is arranged on the frame;

And one end of the connecting rod group is arranged on the movable rod, and the other end of the connecting rod group is arranged on the damper.

The working principle and the beneficial effects of the invention are as follows:

The transfer trolley is particularly suitable for improving the transportation efficiency and enhancing the bearing capacity in a limited space. The goods shelf structure is arranged on the mounting platform and has enough height intervals to form a storage space, and the storage space can be used for stacking goods, so that transportation is realized. A lifting piece is arranged inside the goods shelf. The lifting piece is arranged at a proper position of the goods shelf and can act on the expansion board. The expansion board is connected to the inside of the goods shelf through a hinge, and can be folded or unfolded along the longitudinal direction of the goods shelf under the action of the lifting piece. When the loading area needs to be increased, the lifting piece is controlled to drive the expansion plate to expand, so that the original storage space can be expanded in the height direction, the multi-layer placement of objects is realized, and further more or larger-volume goods are accommodated. Conversely, when expansion is not needed, the expansion plate can be retracted, and the occupied space of the expansion plate is reduced. In addition, the whole transfer trolley is compact in design, can be flexibly operated in a narrow working environment, and meanwhile, the transportation efficiency of the transfer trolley can be obviously improved through expanding functions when necessary, so that the problem of insufficient loading capacity of the traditional small transfer trolley due to the limitation of the volume of the transfer trolley is greatly solved.

Drawings

The above features, technical features, advantages and implementation of the present invention will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.

FIG. 1 is a schematic diagram of the overall structure of a transfer trolley of the present invention;

FIG. 2 is a schematic view of the vehicle body structure of the present invention;

FIG. 3 is a schematic view of another view of the vehicle body according to the present invention;

FIG. 4 is a schematic view of the structure of the shelf of the present invention;

FIG. 5 is a schematic view of a lift structure according to the present invention;

fig. 6 is a schematic view of the traction unit structure of the present invention.

In the figure: 1. a vehicle body; 101. a frame; 1011. a mounting platform; 102. a first bridge; 103. a second bridge; 104. a wheel; 105. a connecting rod; 2. a goods shelf; 201. a storage space; 202. a bottom plate; 20. a surrounding baffle; 203. a fixed cylinder; 204. a telescopic rod; 2041. a connecting groove; 205. a reinforcing rod; 206. a clamping piece; 207. a baffle; 3. a lifting member; 31. a column; 301. a receiving groove; 302. a second driving member; 303. a first driving member; 4. an expansion plate; 41. a plate body; 401. a connection part; 402. a mounting base; 5. a traction section; 501. a frame; 5011. a chute; 5012. a limit part; 51. an elastic rod; 511. a movable rod; 512. a spring; 513. a limit protrusion; 514. a slide bar; 52. a buffer; 521. a damper; 522. a connecting rod assembly; 53. a connector; 6. a traction rod; 601. a clamping groove.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the invention are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. In addition, in order to simplify the drawings and facilitate understanding, components having the same structure or function in some drawings are only schematically illustrated in one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one", and "a number" includes "two" and "two or more".

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 6, for one embodiment of the present invention, a transfer trolley is provided for transporting goods, the transfer trolley being moved by traction of a tractor, including: a vehicle body 1 having a mounting platform 1011; a shelf 2 provided on the mounting platform 1011, the shelf 2 having a storage space 201; a lifting member 3 arranged on the shelf 2; the expansion plate 4 is hinged to the lifting piece 3, the expansion plate 4 is located in the object placing space 201, and the lifting piece 3 is used for driving the expansion plate 4 to longitudinally move along the object placing space 201.

In the above-described solution, the present invention provides an improved traction-type transfer trolley, particularly suitable for improving transport efficiency and enhancing load-carrying capacity in confined spaces. The whole transfer trolley is made of metal materials, and the trolley body 1 is firm and durable and has good bearing performance. The body 1 part includes a body frame 501, i.e., a mounting platform 1011, and the surface is subjected to an anti-slip treatment to increase the stability of the cargo during transportation. The shelf 2 is structurally disposed on the mounting platform 1011 with sufficient height spacing to form a storage space 201, the storage space 201 being available for stacking goods for transportation.

Inside the pallet 2 is arranged a set of lifting members 3 system. The lifting element 3 is mounted in a suitable position on the pallet 2 and can act on the expansion plate 4. The expansion board 4 is connected to the inside of the goods shelf 2 through a hinge, and can be folded or unfolded along the longitudinal direction of the goods shelf 2 under the action of the lifting piece 3. When the loading area needs to be increased, the lifting piece 3 is controlled to drive the expansion plate 4 to expand, so that the original storage space 201 can be expanded in the height direction, the multi-layer placement of objects is realized, and further more or larger-volume goods are accommodated. Conversely, when expansion is not needed, the expansion plate 4 can be retracted, and the occupied space of the expansion plate 4 is reduced.

In addition, the whole transfer trolley is compact in design, can be flexibly operated in a narrow working environment, and meanwhile, the transportation efficiency of the transfer trolley can be obviously improved through expanding functions when necessary, so that the problem of insufficient loading capacity of the traditional small transfer trolley due to the limitation of the volume of the transfer trolley is greatly solved.

The linkage mechanism between the lifting piece 3 and the expansion plate 4 adopts an electric control system, and an operator can precisely control the action of the lifting piece 3 through a remote controller or a vehicle-mounted controller, so that the automatic expansion and the folding of the expansion plate 4 are realized. After the expansion plate 4 is unfolded, loading planes of different layers are formed with the goods shelves 2, and the transportation capacity of the transfer trolley is enhanced. In addition, the bottom of the vehicle body 1 is also provided with a traction interface matched with a tractor, so that the transfer trolley can stably follow when pulled by the tractor, the flexibility requirement under the indoor complex environment is met, and the possibility of long-distance and large-batch transportation operation is also realized. The traction type transfer trolley provided by the invention effectively solves the problem of space limitation of the existing transfer trolley when larger or more cargoes are transported through reasonable design and innovative expansion functions, improves the transfer efficiency and space utilization rate, and meets the requirements of high-efficiency and flexible transfer tools in modern industrial production and logistics transportation.

Further, the vehicle body 1 includes: the frame 101, the upper surface of the frame 101 is a mounting platform 1011; the first bridge 102 is rotatably arranged at the bottom of the frame 101; the second bridge 103 is rotatably arranged at the bottom of the frame 101, and the first bridge 102 and the second bridge 103 are arranged in parallel; the wheels 104 are respectively arranged on the first bridge frame 102 and the second bridge frame 103; a connecting rod 105, one end of which is hinged on the first bridge 102, and the other end of which is hinged on the second bridge 103, the connecting rod 105 being arranged obliquely along the horizontal direction; and one end of the traction part 5 is arranged on the tractor, the other end of the traction part 5 is arranged on the first bridge frame 102, and after the traction part 5 deflects along the horizontal direction, the first bridge frame 102 drives the second bridge frame 103 to deflect through the connecting rod 105.

In the above-described aspect, the core components of the vehicle body 1 include the frame 101, the first bridge 102, the second bridge 103, the wheels 104, the connecting rods 105, and the like. First, the frame 101 is used as a basic supporting structure of the whole transfer trolley, the upper surface of the frame is flat and spacious, and the frame is designed as a mounting platform 1011 for placing and fixing cargoes, so that the stability and safety of the cargoes in the transportation process are ensured. The bottom of the frame 101 is provided with two rotatable first bridges 102 and second bridges 103 which are arranged in parallel, so that the stability of the transfer trolley in the travelling process is ensured. The first bridge 102 and the second bridge 103 are rotatable relative to the frame 101, which gives the transfer trolley better maneuverability and passability, especially when dealing with complex ground conditions or narrow passages.

The wheels 104 are respectively mounted on the first bridge frame 102 and the second bridge frame 103, and the number of the wheels can be set according to actual bearing requirements and site conditions so as to ensure that the transfer trolley has enough bearing capacity and running stability. A connecting rod 105 is also introduced, one end of which is mounted on the first bridge 102 by means of a hinge, the other end of which is likewise hinged on the second bridge 103. The connecting rod 105 is not horizontally arranged, but is inclined at a certain angle along the horizontal direction, so that the movement of the first bridge frame 102 can be effectively transmitted to the second bridge frame 103 through the lever principle, when the tractor turns, the first bridge frame 102 and the second bridge frame 103 synchronously rotate for moving the range, the whole bending angle of the transfer trolley is reduced, and the whole trafficability of the transfer trolley is increased.

The transfer trolley is further provided with a traction part 5, one end of which is fixed to the traction trolley, and the other end of which is connected to the first bridge 102. When the traction part 5 deflects in the horizontal direction, the first bridge frame 102 is driven to deflect along with the traction part, and the second bridge frame 103 is synchronously deflected through the transmission effect of the connecting rod 105. The linkage design ensures that the transfer trolley can keep consistent running direction with the tractor under the traction state, ensures balance and stability during turning, ensures that the transfer trolley meets basic transportation requirements, greatly improves adaptability and flexibility under various working environments, and improves transfer efficiency and operation convenience.

Further, the shelf 2 includes: a base plate 202 provided on the mounting platform 1011; the enclosure 20 is arranged on the periphery of the bottom plate 202, and an object placing space 201 is formed between the enclosure 20 and the bottom plate 202; the enclosure 20 includes: the fixed cylinders 203 are provided with a plurality of fixed cylinders 203, and the fixed cylinders 203 are respectively arranged at the corners of the bottom plate 202; the telescopic rod 204 is movably arranged in the fixed cylinder 203; the clamping piece 206 is arranged on the telescopic rod 204, and the telescopic rod 204 is clamped with the fixed cylinder 203 through the clamping piece 206.

In the above-described embodiment, the main structure of the shelf 2 includes two major parts, namely the bottom plate 202 and the enclosure 20. The base plate 202 is firmly mounted on the mounting platform 1011 of the vehicle body 1, which serves as a base surface for carrying goods, and the material and the size thereof are selected to sufficiently consider the carrying capacity and durability, thereby ensuring stable carrying performance even after long-term use. The enclosure 20 surrounds the bottom plate 202, and forms a closed or semi-closed storage space 201 together with the bottom plate 202 for storing goods. Specifically, the enclosure 20 is designed to include a combination of a fixed cylinder 203 and a telescopic rod 204. At four corners or other necessary positions of the base plate 202, a plurality of fixing cylinders 203 are provided, respectively, and these fixing cylinders 203 are fixed to the base plate 202 as supporting and guiding structures. The telescopic rod 204 is movably embedded into the fixed cylinder 203, so that the height of the enclosure 20 can be adjusted according to the size and shape of the goods. The telescopic rod 204 can be telescopic manually or automatically to adapt to the loading requirements of cargoes of different specifications. In addition, each telescopic rod 204 is provided with a clamping piece 206, when the telescopic rods 204 are adjusted to a required height, the clamping pieces 206 are clamped with corresponding structures inside the fixed cylinder 203, the enclosure 20 is ensured to be stable at the adjusted height, loosening of the enclosure 20 caused by jolting and other factors in the transportation process is avoided, and accordingly effective protection and fixation of goods in the storage space 201 are ensured. The goods shelf 2 of the invention not only provides flexible and changeable storage space 201, but also greatly improves the adaptability of the transfer trolley to different kinds and specifications of goods through the bottom plate 202 and the height-adjustable enclosure 20 structure, thereby optimizing the overall loading efficiency and the use experience.

Further, the end of the telescopic rod 204 away from the fixed cylinder 203 has a connecting groove 2041, and further includes: the reinforcing rods 205 are provided with a plurality of reinforcing rods 205, each reinforcing rod 205 is detachably arranged between the adjacent telescopic rods 204, and the end parts of the reinforcing rods 205 are arranged in the connecting grooves 2041; the baffle plates 207 are provided, each baffle plate 207 is hinged between the adjacent fixed cylinders 203, and the baffle plates 207 are unfolded towards the outer side of the bottom plate 202 and then are flush with the upper surface of the bottom plate 202.

In the above-mentioned scheme, specifically, the end of the telescopic rod 204 far away from the fixed cylinder 203 is provided with a connecting groove 2041, and a plurality of detachable reinforcing rods 205 are added on the connecting groove. The reinforcing rods 205 can be freely selected according to the weight and volume requirements of the actual loaded goods, and one ends of the reinforcing rods are inserted into the connecting grooves 2041 of the telescopic rods 204, so that strong support and connection are established between the telescopic rods 204, the load is effectively dispersed, and the overall bearing capacity of the goods shelf 2 is improved. In addition, the shelf 2 design also comprises a plurality of baffles 207, and each baffle 207 is hinged between adjacent fixed cylinders 203, so that the baffles 207 can be flexibly opened and closed. When the flap 207 is deployed outwardly, it may remain flush with the upper surface of the base 202, thereby creating a larger storage space 201 for larger items and larger numbers of items. Summarizing, the structure of the goods shelf 2 of the invention realizes comprehensive improvement of the stability, the bearing capacity and the multifunction of the goods shelf 2 by additionally arranging the detachable reinforcing rod 205 and the hinged baffle 207 on the basis of the original telescopic rod 204, so that the transfer trolley has reliability and practicability while meeting the loading requirements of various goods.

Further, the lifting member 3 includes: a column 31 having a receiving groove 301, the column 31 being disposed longitudinally on one side of the base plate 202; the first driving piece 303, the expansion board 4 is arranged on the first driving piece 303, and the first driving piece 303 is used for driving the expansion board 4 to be unfolded or cancel to be unfolded; the second driving member 302 is disposed in the accommodating groove 301, the first driving member 303 is disposed on the second driving member 302, and the second driving member 302 drives the first driving member 303 to move longitudinally along the upright 31.

In the above-described solution, the lifting member 3 is mainly composed of the upright 31, the first driving member 303 and the second driving member 302. The upright 31 is vertically installed at one side of the base plate 202, and has a receiving groove 301 therein to hide and protect the second driving member 302, and at the same time, reduce the overall volume of the lifting member 3, thereby facilitating more functional integration in a limited space. The first driving member 303 is an important actuator of the lifting member 3, on which the expansion plate 4 is mounted. The first driving member 303 has a function of expanding and canceling the expansion board 4, which means that when the loading space needs to be increased, the first driving member 303 can drive the expansion board 4 to transition from the storage state to the expanded state, thereby expanding the storage space 201; otherwise, when the expansion space is not needed, the expansion plate 4 can be retracted to restore the initial state. The second driving member 302 is disposed neatly within the receiving groove 301 in the interior of the upright 31 in a driving relationship with the first driving member 303. Specifically, the first driving member 303 is fixed to the second driving member 302, and the second driving member 302 is responsible for driving the first driving member 303 to move precisely along the longitudinal direction (i.e., up-down direction) of the upright 31. Therefore, when the frame-shaped second driving piece 302 is started, the expansion plate 4 can be regulated and controlled to be unfolded and folded, the position of the expansion plate 4 can be changed through longitudinal movement, the whole lifting process is more flexible and controllable, and the space utilization rate and the loading efficiency of the transfer trolley are greatly improved.

Further, the expansion board 4 includes: the plate 41 is provided with connecting parts 401 at two sides of the plate 41; the mounting base 402 is disposed on a side of the plate 41 near the first driving member 303, and the mounting base 402 is hinged to the first driving member 303.

In the above-mentioned scheme, expansion board 4 mainly includes two parts of board body 41 and mount 402. The plate body 41 is designed into a frame-shaped structure, and the structure ensures the stability and bearing capacity of the expanded plate 4 after being expanded, lightens the weight of the expanded plate and is convenient to expand and store quickly. The two sides of the plate 41 are provided with connecting parts 401, and after the plate is unfolded, other plate 41 can be additionally arranged, so that the area of the whole expansion plate 4 is increased, and the plate 41 and the connecting parts are firmly connected to form a larger loading plane. The mounting seat 402 is provided on a side of the plate 41 adjacent to the first driving member 303, and is closely coupled to the first driving member 303 by hinge. This hinged design allows the expansion plate 4 to be flipped or slid under the drive of the first drive member 303 for deployment and stowage purposes. When the first driving piece 303 is started, the installation seat 402 can accurately control the expansion angle and the expansion degree of the expansion plate 4 along with the driving signal, so that the expansion plate 4 can be adjusted to an optimal loading state according to actual requirements, and the space utilization rate and the transportation efficiency of the transfer trolley are greatly improved.

Further, the traction unit 5 includes: one end of the traction rod 6 is arranged on the first bridge 102, and the other end of the traction rod is provided with a clamping groove 601; one end of the traction head is clamped in the clamping groove 601, and the other end of the traction head is arranged on the traction vehicle.

In the above-described solution, the design of the traction section 5 aims at achieving an effective connection and a movement synchronization between the transfer trolley and the traction vehicle. The traction part 5 mainly comprises a traction rod 6 and a traction head. One end of the traction bar 6 is fixedly arranged on the first bridge 102, which ensures that the traction force can be directly transferred to the main structure of the transfer trolley when the traction vehicle applies a traction force. The other end of the drawbar 6 is designed with a clamping groove 601, and the clamping groove 601 plays a key role in connection and locking. The traction head is a part which is in butt joint with the traction rod 6, one end of the traction head is designed to be just clamped in a clamping groove 601 at the end part of the traction rod 6, and firm connection between the traction head and the traction rod is realized. The other end of the traction head is fixedly arranged on the traction vehicle, so that when the traction vehicle starts to run or turn, the traction head transmits force to the transfer trolley through the traction rod 6, and the traction head can move or change direction along with the traction vehicle. The design not only ensures that the transfer trolley has higher stability in the traction process, but also can flexibly and conveniently complete the connection and separation operation with the tractor.

Further, the traction head comprises: a frame 501 having a stopper 5012; an elastic rod 51 slidably penetrating through the limiting portion 5012, wherein one end of the elastic rod 51 is disposed in the clamping groove 601, and the other end of the elastic rod 51 is disposed on the tractor; the buffer 52 is arranged on one side of the frame 501, the buffer 52 is hinged on the elastic rod 51, and the buffer 52 is used for reducing the deformation speed of the elastic rod 51.

In the above-described solution, the traction head is mainly composed of three parts, namely a frame 501, an elastic rod 51 and a bumper 52. The frame 501 is a basic structure of the traction head, and has a limiting portion 5012 for limiting the sliding range of the elastic rod 51, and ensuring the stability and reliability of the traction head when connected to the traction rod 6. The elastic rod 51 is disposed on the limiting portion 5012 in a sliding penetrating manner, and one end of the elastic rod is precisely clamped in the clamping groove 601 at the end of the traction rod 6, so as to achieve tight coupling and dynamic connection with the traction rod 6. The other end of the elastic rod 51 is fixed on the tractor, when the tractor generates traction force or impact force, the elastic rod 51 can transmit force through elastic deformation of the elastic rod, and meanwhile, certain impact energy is absorbed, so that the risk of damage to a vehicle structure due to sudden stress is reduced, for example, when a traction head suddenly stops, under the action of the elastic rod 51 and the buffer 52, the transfer trolley can slowly stop, damage to the transfer trolley is avoided, and the transportation of cargoes is not influenced. The damper 52 is provided at one side of the frame 501 and is connected to the elastic rod 51 by a hinge. When the elastic rod 51 deforms under the stress condition, the buffer 52 starts to act, and the deformation speed of the elastic rod 51 is slowed down through the damping characteristic of the buffer, so that the instant impact force is effectively restrained, the stable transition in the traction process is ensured, the vibration and the noise are reduced, the service life of equipment is prolonged, and the safety in the transportation process is improved.

Further, the frame 501 has a slide slot 5011, and the elastic lever 51 includes: a movable lever 511 slidably penetrating the stopper 5012; the limiting bulge 513 is fixedly sleeved on the movable rod 511; a spring 512, one end of which abuts against the limit projection 513, and the other end of which abuts against the limit part 5012; the sliding rod 514 is arranged in the sliding groove 5011 in a sliding way, the limiting projection 513 is arranged on the side wall of the sliding rod 514, and the sliding rod 514 is clamped in the clamping groove 601; the connector 53 is disposed at one end of the movable rod 511 away from the sliding rod 514, and the connector 53 is detachably disposed on the tractor. The buffer 52 includes: the damper 521 is provided on the frame 501, one end is provided on the movable lever 511, and the other end is provided on the damper 521.

In the above-mentioned scheme, the frame 501 of the traction head contains a sliding slot 5011 inside for sliding fit of the sliding rod 514. The elastic rod 51 is actually composed of four parts of a movable rod 511, a limit projection 513, a spring 512 and a slide rod 514. The movable rod 511 penetrates through the limiting part 5012 and can slide in the range, the limiting protrusion 513 is fixedly sleeved on the movable rod 511, one end of the spring 512 is tightly attached to the limiting protrusion 513, the other end of the spring 512 is contacted with the limiting part 5012, and the movable rod 511 can generate certain buffering and rebound after receiving external force through the elastic force of the spring 512. The sliding rod 514 is slidably disposed in the sliding slot 5011 of the frame 501, the limiting protrusion 513 is disposed on a side wall of the sliding rod 514, and the end of the sliding rod 514 is designed to be clamped with the clamping slot 601 on the traction rod 6, so as to ensure tight and stable connection between the traction head and the traction rod 6. One end of the movable rod 511, which is far away from the sliding rod 514, is provided with a connector 53, and the connector 53 adopts a detachable design, so that the movable rod 511 can be conveniently assembled and disassembled with a tractor quickly and conveniently. The aspect of the damper 52 includes a damper 521 and. The damper 521 is fixedly provided on the frame 501, and one end is connected to the movable lever 511, and the other end is connected to the damper 521. When the movable rod 511 slides under the action of force, the damper 521 can effectively slow down the movement speed of the movable rod 511 by transmitting the movement to the damper 521, so that the deformation rate of the spring 512 is controlled, an excellent buffering and damping effect is achieved in the whole traction process, and the stability and safety of the traction process are improved.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims (10)

1. Transfer trolley for transport goods, transfer trolley pulls the removal through the tractor, its characterized in that includes:

a vehicle body (1) having a mounting platform (1011);

a shelf (2) disposed on the mounting platform (1011), the shelf (2) having a storage space (201);

a lifting piece (3) arranged on the goods shelf (2);

The expansion plate (4) is hinged to the lifting piece (3), the expansion plate (4) is located in the storage space (201), and the lifting piece (3) is used for driving the expansion plate (4) to longitudinally move along the storage space (201).

2. Transfer trolley according to claim 1, characterized in that the vehicle body (1) comprises:

the vehicle comprises a vehicle frame (101), wherein the upper surface of the vehicle frame (101) is provided with the mounting platform (1011);

The first bridge (102) is rotatably arranged at the bottom of the frame (101);

The second bridge frame (103) is rotatably arranged at the bottom of the frame (101), and the first bridge frame (102) and the second bridge frame (103) are arranged in parallel;

the wheels (104) are respectively arranged on the first bridge frame (102) and the second bridge frame (103);

A connecting rod (105), one end of which is hinged on the first bridge (102) and the other end of which is hinged on the second bridge (103), wherein the connecting rod (105) is obliquely arranged along the horizontal direction;

And one end of the traction part (5) is used for being arranged on the tractor, the other end of the traction part is arranged on the first bridge frame (102), and after the traction part (5) deflects along the horizontal direction, the first bridge frame (102) drives the second bridge frame (103) to deflect through the connecting rod (105).

3. Transfer trolley according to claim 1, characterized in that the shelf (2) comprises:

A base plate (202) provided on the mounting platform (1011);

The enclosure (20) is arranged on the circumference of the bottom plate (202), and the object placing space (201) is formed between the enclosure (20) and the bottom plate (202);

the enclosure (20) comprises:

the fixed cylinders (203) are provided with a plurality of fixed cylinders (203), and the fixed cylinders (203) are respectively arranged at corners of the bottom plate (202);

the telescopic rod (204) is movably arranged in the fixed cylinder (203);

the clamping piece (206) is arranged on the telescopic rod (204), and the telescopic rod (204) is clamped with the fixed cylinder (203) through the clamping piece (206).

4. A transfer trolley according to claim 3, characterized in that the end of the telescopic rod (204) remote from the fixed cylinder (203) has a connecting groove (2041), further comprising:

The reinforcing rods (205) are arranged, each reinforcing rod (205) is detachably arranged between the adjacent telescopic rods (204), and the end parts of the reinforcing rods (205) are arranged in the connecting grooves (2041);

The baffles (207) are provided with a plurality of baffles (207), each baffle (207) is hinged between the adjacent fixed cylinders (203), and the baffles (207) are unfolded towards the outer side of the bottom plate (202) and then are flush with the upper surface of the bottom plate (202).

5. A transfer trolley according to claim 3, characterized in that the lifting element (3) comprises:

A column (31) having a receiving groove (301), the column (31) being disposed longitudinally on one side of the base plate (202);

the expansion plate (4) is arranged on the first driving piece (303), and the first driving piece (303) is used for driving the expansion plate (4) to be unfolded or cancel to be unfolded;

the second driving piece (302) is arranged in the accommodating groove (301), the first driving piece (303) is arranged on the second driving piece (302), and the second driving piece (302) drives the first driving piece (303) to longitudinally move along the upright post (31).

6. Transfer trolley according to claim 5, characterized in that the expansion plate (4) comprises:

the plate body (41) is in a frame shape, and connecting parts (401) are arranged on two sides of the plate body (41);

the mounting seat (402) is arranged on one side, close to the first driving piece (303), of the plate body (41), and the mounting seat (402) is hinged to the first driving piece (303).

7. Transfer trolley according to claim 2, characterized in that the traction section (5) comprises:

One end of the traction rod (6) is arranged on the first bridge (102), and the other end of the traction rod is provided with a clamping groove (601);

One end of the traction head is clamped in the clamping groove (601), and the other end of the traction head is arranged on the tractor.

8. The transfer trolley of claim 7 wherein the traction head comprises:

a frame (501) having a limit part (5012);

An elastic rod (51) which is arranged on the limit part (5012) in a sliding penetrating way, wherein one end of the elastic rod (51) is arranged in the clamping groove (601), and the other end of the elastic rod (51) is arranged on the tractor;

and the buffer (52) is arranged on one side of the frame (501), the buffer (52) is hinged on the elastic rod (51), and the buffer (52) is used for reducing the deformation speed of the elastic rod (51).

9. The transfer trolley according to claim 8, characterized in that the frame (501) has a chute (5011), the elastic lever (51) comprising:

a movable lever (511) that slides through the limit part (5012);

a limit bulge (513) fixedly sleeved on the movable rod (511);

A spring (512) having one end abutting against the limit projection (513) and the other end abutting against the limit part (5012);

The sliding rod (514) is arranged in the sliding groove (5011) in a sliding manner, the limiting protrusion (513) is arranged on the side wall of the sliding rod (514), and the sliding rod (514) is clamped in the clamping groove (601);

The connector (53) is arranged at one end, far away from the sliding rod (514), of the movable rod (511), and the connector (53) is detachably arranged on the tractor.

10. The transfer trolley of claim 8, wherein the buffer (52) comprises:

A damper (521) provided on the frame (501);

and a connecting rod group, one end of which is arranged on the movable rod (511) and the other end of which is arranged on the damper (521).