Trolley

Abstract

The utility model discloses a cart which comprises a chassis, a moving wheel set, a jacking assembly, a vertical frame, a vertical moving part, a conveying platform, a first inclined strut assembly and / or a second inclined strut assembly, and the moving wheel set is connected to the chassis and used for moving on the ground. The jacking assembly is arranged on the chassis and used for jacking the chassis till the moving wheel sets are suspended. The vertical frame is connected to the base plate in the vertical direction. The vertical moving part is in transmission connection with the vertical frame and can move in the vertical direction; the conveying platform is connected to the vertical moving part, can be driven by the vertical moving part to ascend and descend, and is used for transferring the battery pack; the first inclined strut assembly is connected to the side, away from the conveying platform, of the vertical frame and can obliquely support the vertical frame. And / or the second inclined strut assembly is connected to the side, facing the conveying platform, of the vertical frame and can obliquely support the vertical frame. The cart can reduce the toppling risk and improve the use safety, and is applied to transport instruments.

Description

Technical Field

[0001] The utility model relates to the field of transportation equipment, in particular to a cart. Background Art

[0002] Energy storage boxes are used to store electrical energy. They usually contain multiple battery packs and require regular maintenance and repair. Energy storage power stations are usually located outdoors or in factory areas and are generally not equipped with professional transfer equipment. When the battery pack needs to be transported, a forklift is often used to move the battery pack on the tooling to the battery hatch corresponding to the energy storage box, or hoist it to the battery hatch corresponding to the energy storage box, and then push it in by hand. Since the battery packs weigh more than several hundred kilograms, the higher the battery hatch, the less power the operator will have standing on the stepladder, and the more difficult it will be to push. Uneven force can easily cause the machine to tilt and create safety hazards. In addition, when the battery pack is rising, the center of gravity of the transfer equipment will rise. When the weight of the transfer equipment is not enough, there is a risk of tipping over. The increase in the weight of the transfer equipment not only increases the cost, but also increases the difficulty of transferring the transfer equipment, making it inconvenient to use. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a cart that can reduce the risk of tipping over and improve the safety of use.

[0004] The cart according to the embodiment of the utility model comprises:

[0005] Chassis;

[0006] A moving wheel set, connected to the chassis, for moving on the ground;

[0007] A lifting assembly, provided on the chassis, for lifting the chassis until the moving wheel set is suspended in the air;

[0008] A stand, connected to the chassis in a vertical direction;

[0009] A vertical moving member, which is transmission-connected to the stand and can move along the vertical direction;

[0010] A conveying platform, connected to the vertical moving member, capable of being raised and lowered under the drive of the vertical moving member, and the conveying platform is used to transfer the battery pack;

[0011] A first diagonal brace assembly is connected to a side of the stand away from the conveying platform and can tilt and support the stand, the first diagonal brace assembly includes a first fixed rod and a first telescopic rod that can extend relative to the first fixed rod, the first telescopic rod has a first position and a second position that can be fixed to the first fixed rod;

[0012] The first telescopic rod is configured to: retract to the first fixed rod in the first position; extend to the first fixed rod in the second position, and the first diagonal support assembly tilts to support the stand, and the lifting assembly lifts the chassis until the moving wheel assembly is suspended in the air;

[0013] and / or,

[0014] A second diagonal brace assembly is connected to a side of the stand facing the conveying platform and is capable of tilting and supporting the stand, the second diagonal brace assembly comprising a second fixed rod and a second telescopic rod capable of extending relative to the second fixed rod, the second telescopic rod having a third position and a fourth position capable of being fixed to the second fixed rod;

[0015] The second telescopic rod is configured to be: retracted to the second fixed rod in the third position; and extended to the second fixed rod in the fourth position, and the second diagonal support assembly supports the stand, and the lifting assembly lifts the chassis until the moving wheel group is suspended in the air.

[0016] The cart according to the embodiment of the utility model has at least the following beneficial effects: when the conveying platform of the cart needs to be raised by the vertical moving part and the battery pack is transferred, the jacking assembly lifts the chassis until the moving wheel group is suspended in the air, and supports the vertical frame through the first diagonal brace assembly and the second diagonal brace assembly to balance the force applied to the conveying platform during the movement of the battery pack, thereby improving the overall stability of the cart, reducing the risk of tipping over of the cart, and improving the safety and reliability of the cart when in use.

[0017] According to some embodiments of the utility model, the first telescopic rod includes a telescopic rod portion and a sliding sleeve portion connected to one end of the telescopic rod portion, the sliding sleeve portion is slidably sleeved on the outer circumference of the first fixed rod, the outer circumference of the sliding sleeve portion is provided with a first through hole, the outer circumference of the first fixed rod is provided with a first limiting hole and a second limiting hole that can be aligned with the first through hole, and the first diagonal brace assembly also includes a fixing pin for fixing the first telescopic rod and the first fixed rod;

[0018] The fixing pin is configured such that: when the first telescopic rod is fixed at the first position, the fixing pin is inserted into the first through hole and the first limiting hole; when the first telescopic rod is fixed at the second position, the fixing pin is inserted into the first through hole and the second limiting hole.

[0019] According to some embodiments of the utility model, the first telescopic rod further includes a limiting portion, the limiting portion is arranged on the outer peripheral surface of the sliding sleeve portion, and the limiting portion has a limiting state and a relaxed state;

[0020] The limiting portion is configured as follows: in the limiting state, when the first telescopic rod is fixed at the first position, the fixing pin is limited to be disengaged from the first through hole and the first limiting hole, or when the first telescopic rod is fixed at the second position, the fixing pin is limited to be disengaged from the first through hole and the second limiting hole; in the relaxed state, the fixing pin is not restricted to be disengaged from the first through hole and the first limiting hole, or the fixing pin is not restricted to be disengaged from the first through hole and the second limiting hole.

[0021] According to some embodiments of the utility model, the limiting portion is a buckle lock body, and the end surface of the fixing pin that is not inserted into the first through hole is provided with a lock hook, and the buckle lock body can be locked with the lock hook;

[0022] The limiting portion is configured such that: in the limiting state, the buckle lock body is locked to the lock hook; in the released state, the buckle lock body is not locked to the lock hook.

[0023] According to some embodiments of the present utility model, the first fixing rod comprises a fixing rod portion and a first stop portion provided on an outer peripheral surface of the fixing rod portion, and the first stop portion is configured to: stop the sliding sleeve portion at the first position;

[0024] And / or, the first fixing rod includes a fixing rod portion and a second stopping portion provided on an outer peripheral surface of the fixing rod portion, and the second stopping portion is configured to stop the sliding sleeve portion at the second position.

[0025] According to some embodiments of the present invention, the first diagonal support assembly further includes a first diagonal support leg, and the first diagonal support leg is rotatably connected to the extended end of the first telescopic rod.

[0026] According to some embodiments of the utility model, the first diagonal support leg includes a support layer and a friction layer connected to the bottom surface of the support layer, the support layer is rotatably connected to the protruding end, and the friction layer is used to increase the friction force during diagonal support.

[0027] According to some embodiments of the present utility model, the first telescopic rod includes a telescopic rod portion and a third stop portion provided on an outer peripheral surface of the telescopic rod portion, and the third stop portion is configured to: stop the first fixed rod in the first position;

[0028] And / or, the first fixing rod includes a fixing rod portion and a fourth stopping portion provided on an outer peripheral surface of the fixing rod portion, and the fourth stopping portion is configured to stop the first telescopic rod at the first position.

[0029] According to some embodiments of the utility model, the chassis includes a main body and an extension portion arranged on the opposite side of the main body, the jacking assembly is arranged on the extension portion, the jacking assembly includes a jacking support foot, a jacking adjustment rod, a jacking adjustment piece and a jacking adjustment handle, the jacking adjustment rod is passed through the extension portion, the bottom end of the jacking adjustment rod is connected to the jacking support foot, the top end of the jacking adjustment rod is connected to the jacking adjustment handle, the jacking adjustment piece is threadedly connected to the outer peripheral surface of the jacking adjustment rod and is located below the extension portion, and the jacking adjustment piece can be moved along the axial direction of the jacking adjustment rod through a thread to lift and lower the chassis.

[0030] According to some embodiments of the utility model, the conveying platform includes a base for placing a battery pack, a push-pull seat provided on the base, and a pulling member for detachably connecting the battery pack, the push-pull seat can reciprocate along a first direction and a second direction opposite to the first direction, and can push the battery pack along the first direction, the push-pull seat is provided with a mounting portion, and a portion of the pulling member can be limitedly mounted on the mounting portion so as to be pulled by the push-pull seat along the second direction;

[0031] The push-pull seat is configured to: push out the battery pack in the base when moving along the first direction; and pull the pulling member and the battery pack to the base through the mounting portion when moving along the second direction and the pulling member is connected to the battery pack and mounted on the mounting portion.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0034] Figure 1 This is a schematic structural diagram of a cart according to an embodiment of the utility model from a first viewing angle;

[0035] Figure 2 This is a schematic structural diagram of a cart according to an embodiment of the utility model from a second viewing angle;

[0036] Figure 3 This is a structural schematic diagram of a lifting assembly of a cart according to an embodiment of the utility model;

[0037] Figure 4 This is a structural schematic diagram of a first diagonal support assembly of a cart according to an embodiment of the utility model;

[0038] Figure 5 for Figure 4A partial enlarged schematic diagram of part A;

[0039] Figure 6 It is a structural schematic diagram of a first telescopic rod of a first diagonal support assembly of a cart according to an embodiment of the utility model being transferred between a first position and a second position;

[0040] Figure 7 This is a schematic structural diagram of a conveying platform of a cart according to an embodiment of the utility model;

[0041] Figure 8 The present invention is a structural schematic diagram of a push-pull seat installation portion of a conveying platform of a cart according to an embodiment of the present invention when a pulling member is installed.

[0042] Figure Number:

[0043] Chassis 100; main body 110; extension 120;

[0044] Moving wheel set 200;

[0045] Lifting assembly 300; lifting support leg 310; lifting adjustment rod 320; lifting adjustment member 330; lifting adjustment handle 340;

[0046] Stand 400;

[0047] Vertical moving member 500;

[0048] Conveying platform 600; base 610; push-pull seat 620; mounting portion 621; pulling member 630;

[0049] The first diagonal support assembly 700; the first fixing rod 710; the first limiting hole 711; the second limiting hole 712; the first telescopic rod 720; the telescopic rod portion 721; the sliding sleeve portion 722; the first through hole 7221; the fixing pin 723; the locking hook 7231; the limiting portion 724; the first diagonal support leg 725; the third stop portion 726;

[0050] A second diagonal brace assembly 800 ; a second fixing rod 810 ; and a second telescopic rod 820 . DETAILED DESCRIPTION

[0051] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] In the description of the present utility model, "several" refers to one or more, and "multiple" refers to two or more. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0054] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0055] Reference Figures 1 to 8As shown, a cart of an embodiment of the utility model comprises: a chassis 100, a moving wheel group 200 connected to the chassis 100, a lifting assembly 300 arranged on the chassis 100, a stand 400 connected to the chassis 100 in a vertical direction, a vertical moving member 500 connected to the stand 400 in a transmission manner, a conveying platform 600 connected to the vertical moving member 500, and a first diagonal support assembly 700 connected to a side of the stand 400 away from the conveying platform 600 and / or connected to the stand 400 toward the conveying platform 600. 00, the second diagonal support assembly 800 on one side, the moving wheel group 200 is used to move on the ground; the lifting assembly 300 is used to lift the chassis 100 until the moving wheel group 200 is suspended in the air; the vertical moving member 500 can move in the vertical direction; the conveying platform 600 can be raised and lowered under the drive of the vertical moving member 500, and the conveying platform 600 is used to transfer the battery pack; the first diagonal support assembly 700 can tilt and support the stand 400, and the first diagonal support assembly 700 includes a first fixing rod 710 and a fixing rod 710 that can be relatively The first telescopic rod 720 is extended, and the first telescopic rod 720 has a first position and a second position that can be fixed to the first fixed rod 710; wherein the first telescopic rod 720 is configured as follows: in the first position, it is retracted to the first fixed rod 710; in the second position, it is extended from the first fixed rod 710, and the first diagonal support assembly 700 tilts to support the stand 400, and the lifting assembly 300 lifts the chassis 100 until the moving wheel group 200 is suspended; the second diagonal support assembly 800 can tilt to support the stand 400, and the second diagonal support assembly 800 can tilt to support the stand 400, and the second diagonal support assembly 800 can tilt to support the stand 400. The assembly 800 includes a second fixed rod 810 and a second telescopic rod 820 that can be extended relative to the second fixed rod 810, and the second telescopic rod 820 has a third position and a fourth position that can be fixed to the second fixed rod 810; wherein the second telescopic rod 820 is configured to: retract to the second fixed rod 810 in the third position; and extend from the second fixed rod 810 in the fourth position, and the second diagonal brace assembly 800 supports the stand 400, and the lifting assembly 300 lifts the chassis 100 until the moving wheel assembly 200 is suspended in the air. The cart in this embodiment enhances the stability of the cart and reduces the risk of tipping over of the cart through the lifting assembly 300, the first diagonal brace assembly 700 and the second diagonal brace assembly 800, making the cart safer to use.

[0056] In this embodiment, refer to Figure 1 and Figure 2 As shown, the chassis 100 includes a plurality of steel pipes, which are surrounded to form a rectangular frame to form the chassis 100, and the moving wheel set 200 includes four moving pulleys, which are respectively arranged at the four corners of the rectangular frame, so that the chassis 100 can move in a horizontal plane, wherein two adjacent moving pulleys have a steering function, and each moving pulley has a brake structure, and the moving pulley can stop on the ground through the brake structure. Two adjacent moving pulleys are universal wheels with brakes, and the other two adjacent moving pulleys are one-way wheels with brakes.

[0057] Reference Figure 3 As shown, the lifting assembly 300 is arranged on the chassis 100 and has the function of lifting and lowering in the vertical direction. The lifting assembly 300 moves vertically downward, so that the lifting assembly 300 lifts the chassis 100, and then the moving wheel group 200 is suspended. It should be noted that even if the moving wheel group 200 has a brake structure, the locking force of the brake structure is limited, and the moving pulley is in line contact with the ground, there is a risk of slippage, and it will still cause the cart to tip over. Therefore, by lifting the chassis 100 through the lifting assembly 300, the risk of slippage of the moving wheel group 200 can be effectively reduced.

[0058] Reference Figure 1 and Figure 2 As shown, the stand 400 includes two columns arranged at the same end of the chassis 100, the two columns are opposite and spaced apart, the tops of the two columns are connected by a connecting column, and the space between the two columns and the connecting column is used to arrange a linear reciprocating mechanism that drives the vertical moving member 500 to reciprocate in the vertical direction. The linear stroke of the linear reciprocating mechanism is arranged along the vertical direction. The linear reciprocating mechanism can be a mechanism with a linear movement stroke such as a screw slider mechanism, a pulley transmission mechanism, a sprocket transmission mechanism, and a telescopic rod mechanism. In this embodiment, a sprocket transmission mechanism is adopted. The transmission force of the sprocket transmission structure is greater, and it can reliably drive a battery pack weighing hundreds of kilograms, and the sprocket transmission structure The structure is mature, the cost is low, and the maintenance is convenient. The sprocket transmission mechanism includes a vertical driving source, a driving gear, a transmission gear and a transmission chain. The vertical moving member 500 is fixedly connected to the transmission chain. The center position of the driving gear is transmission-connected to the vertical driving source, the outer peripheral surface of the driving gear is transmission-connected to the transmission chain, and the transmission gear is transmission-connected to the transmission chain. All the transmission gears and the driving gears tighten the transmission chain to form a circular return chain. The rotation direction of the driving gear is controlled by the vertical driving source, and then the transmission chain is controlled to move in the vertical direction, so that the vertical moving member 500 reciprocates in the vertical direction. The vertical driving source is a device with rotational power such as a motor, an electric motor or a combustion engine.

[0059] Reference Figure 2 As shown, the conveying platform 600 is connected to the vertical moving member 500, and moves in the vertical direction driven by the vertical moving member 500. When a plurality of battery compartments are provided in the height direction of the battery cabinet, the conveying platform 600 can be moved to align with each battery compartment through the vertical moving member 500, thereby transferring the battery pack of the conveying platform 600 into the battery compartment, or pulling out the battery pack in the battery compartment to the conveying platform 600.

[0060] Reference Figure 1 and Figure 2As shown, the first diagonal support assembly 700 is tilted to support the side of the stand 400 away from the conveying platform 600 to increase the stability of the cart. When the first telescopic rod 720 is in the first position, the first telescopic rod 720 retracts to the first fixed rod 710, so that the first diagonal support assembly 700 will not contact the ground, which is convenient for the transfer of the cart; and when the first telescopic rod 720 is in the second position, the first telescopic rod 720 extends out of the first fixed rod 710, so that the extended end of the first telescopic rod 720 abuts against the ground or other fixed objects, so that the first diagonal support assembly 700 supports the stand 400, thereby improving the stability of the cart.

[0061] Reference Figure 1 and Figure 2 As shown, the structure of the second diagonal brace assembly 800 is the same as that of the first diagonal brace assembly 700, with only the supporting direction being opposite. The structure of the second diagonal brace assembly 800 will not be described in detail herein. The second diagonal brace assembly 800 can support the side of the vertical frame 400 toward the conveying platform 600, thereby improving the supporting effect on the vertical frame 400, and the first diagonal brace assembly 700 is opposite to the second diagonal brace assembly 800, thereby further improving the stability of the cart.

[0062] It is worth understanding that when the conveying platform 600 of the cart needs to rise through the vertical moving part 500 and transfer the battery pack, the jacking assembly 300 lifts the chassis 100 until the moving wheel group 200 is suspended in the air, and supports the vertical frame 400 through the first diagonal brace assembly 700 and the second diagonal brace assembly 800 to balance the force applied to the conveying platform 600 during the movement of the battery pack, thereby improving the overall stability of the cart, reducing the risk of tipping over of the cart, and improving the safety and reliability of the cart when in use.

[0063] Reference Figure 4 , Figure 5 and Figure 6 As shown, in some specific embodiments of the present invention, the first telescopic rod 720 includes a telescopic rod portion 721 and a sliding sleeve portion 722 connected to one end of the telescopic rod portion 721, the sliding sleeve portion 722 is slidably sleeved on the outer circumferential surface of the first fixed rod 710, the outer circumferential surface of the sliding sleeve portion 722 is provided with a first through hole 7221, the outer circumferential surface of the first fixed rod 710 is provided with a first limiting hole 711 and a second limiting hole 712 that can be aligned with the first through hole 7221, the first diagonal support assembly 700 also includes a fixing pin 723 for fixing the first telescopic rod 720 and the first fixed rod 710; the fixing pin 723 is configured as follows: when the first telescopic rod 720 is fixed at the first position, the fixing pin 723 is inserted into the first through hole 7221 and the first limiting hole 711; when the first telescopic rod 720 is fixed at the second position, the fixing pin 723 is inserted into the first through hole 7221 and the second limiting hole 712.

[0064] It is worth understanding that the telescopic rod portion 721 is staggered with the first fixed rod 710, and is sleeved on the outer circumferential surface of the first fixed rod 710 through the sliding sleeve portion 722. The sliding sleeve portion 722 and the first fixed rod 710 are fixed by a fixing pin 723. Only simple teaching is required for users to understand, and there are no cumbersome usage steps, making it simpler and more convenient to use.

[0065] Reference Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the first telescopic rod 720 also includes a limiting portion 724, which is arranged on the outer peripheral surface of the sliding sleeve portion 722, and the limiting portion 724 has a limiting state and a relaxed state; the limiting portion 724 is configured as follows: in the limiting state, when the first telescopic rod 720 is fixed at the first position, the limiting fixing pin 723 is disengaged from the first through hole 7221 and the first limiting hole 711, or when the first telescopic rod 720 is fixed at the second position, the limiting fixing pin 723 is disengaged from the first through hole 7221 and the second limiting hole 712; in the relaxed state, the fixing pin 723 is not restricted from being disengaged from the first through hole 7221 and the first limiting hole 711, or the fixing pin 723 is not restricted from being disengaged from the first through hole 7221 and the second limiting hole 712.

[0066] It is worth understanding that the limiting portion 724 limits the fixing pin 723 from coming out, thereby preventing the fixing pin 723 from falling off due to an accident, improving the reliability of the fixing pin 723 when in use, and improving the reliability and safety of the cart when in use.

[0067] In this embodiment, the fixing pin 723 includes a pin rod portion and a pin cap portion connected to one end of the pin rod portion, the pin rod portion is inserted into the first through hole 7221 and the first limiting hole 711 or the first through hole 7221 and the second limiting hole 712, and the pin cap portion abuts against the outer circumferential surface of the sliding sleeve portion 722, and the pin cap portion is limited by the limiting portion 724, so that the fixing pin 723 is limited. When the limiting portion 724 is in a limited state, the fixing pin 723 will not fall out, and the fixing pin 723 can only fall out when the limiting portion 724 is in a relaxed state, thereby improving the safety and reliability during use.

[0068] Reference Figure 4 , Figure 5 and Figure 6 As shown, in some specific embodiments of the present utility model, the limiting portion 724 is a buckle lock body, and the end surface of the fixing pin 723 that is not inserted into the first through hole 7221 is provided with a lock hook 7231, and the buckle lock body can be locked with the lock hook 7231;

[0069] The limiting portion 724 is configured such that: in a limiting state, the buckle lock body is locked to the lock hook 7231 ; in a released state, the buckle lock body is not locked to the lock hook 7231 .

[0070] It is worth understanding that the position limitation of the fixing pin 723 is achieved by locking the hasp lock body with the lock hook 7231, making the use of the fixing pin 723 more reliable. The hasp is a commonly used locking structure, and its structure will not be described in detail here.

[0071] As another embodiment, the limiting portion 724 can also be a limiting rotating rod rotatably connected to the outer circumference of the sliding sleeve portion 722, and the limiting rotating rod can be rotated to the end of the pin cap portion away from the pin rod portion. In the limited state, it is rotated to the end of the pin cap portion away from the pin rod portion; and in the relaxed state, it is not rotated to the end of the pin cap portion away from the pin rod portion. The rotation of the limiting rotating rod is a damping rotation, that is, the limiting rotating rod needs to overcome the friction force to rotate, and after the rotation, it is fixed by the friction force, and the rotation position of the limiting rotating rod can be kept fixed. Specifically, the rotating rod portion of the limiting rotating rod is rotatably connected to the sliding sleeve portion 722 through a rubber sleeve.

[0072] In some specific embodiments of the present invention, the first fixed rod 710 includes a fixed rod portion and a first stop portion provided on the outer peripheral surface of the fixed rod portion, and the first stop portion is configured to: stop the sliding sleeve portion 722 in the first position; and / or, the first fixed rod 710 includes a fixed rod portion and a second stop portion provided on the outer peripheral surface of the fixed rod portion, and the second stop portion is configured to: stop the sliding sleeve portion 722 in the second position.

[0073] It is worth understanding that the first stop portion and / or the second stop portion are used to quickly locate the position of the sliding sleeve portion 722, so that the first telescopic rod 720 can be quickly moved to the first position and / or the second position, and aligned with the first limiting hole 711 and / or the second limiting hole 712 of the first fixed rod 710, which is more convenient to use.

[0074] Reference Figure 4 and Figure 6 As shown, in some embodiments of the present invention, the first diagonal support assembly 700 further includes a first diagonal support leg 725 , and the first diagonal support leg 725 is rotatably connected to the extended end of the first telescopic rod 720 .

[0075] It is worth understanding that the contact area between the first telescopic rod 720 and the ground is increased by the first oblique support leg 725, thereby increasing the support strength, and the first oblique support leg 725 is rotatably connected to the extended end of the first telescopic rod 720, so that the first oblique support leg 725 can adapt to the ground at different angles, is suitable for more usage scenarios, and is more convenient to use.

[0076] In this embodiment, the first oblique support leg 725 is plate-shaped, and the first oblique support leg 725 includes a bottom surface and a top surface facing each other. The bottom surface is used to contact the ground, and the top surface is provided with two opposite and spaced protrusions. The extended end of the first telescopic rod 720 is placed between the two protrusions. The rotating shaft rotates to pass through the two protrusions and the first telescopic rod 720 between the two protrusions, thereby realizing the rotational connection between the first oblique support leg 725 and the first telescopic rod 720.

[0077] Reference Figure 4 and Figure 6 As shown, in some specific embodiments of the present invention, the first diagonal support leg 725 includes a support layer and a friction layer connected to the bottom surface of the support layer, the support layer is rotatably connected to the protruding end, and the friction layer is used to increase the friction force during diagonal support.

[0078] It is worth understanding that the support layer increases the structural strength and the friction layer increases the friction with the ground, thereby improving the stability of the first oblique support leg 725, so that the first oblique support leg 725 can provide more stable and reliable support.

[0079] In this embodiment, the side of the support layer away from the friction layer is the top surface of the first oblique support leg 725, and the side of the friction layer away from the support layer is the bottom surface of the first oblique support leg 725. The support layer is formed by a plate-like component, such as a steel plate, etc., the friction layer is composed of a rubber material, and the friction layer has grooves and / or protrusions to further increase the friction between the friction layer and the ground.

[0080] Reference Figure 4 and Figure 6 As shown, in some specific embodiments of the present invention, the first telescopic rod 720 includes a telescopic rod portion 721 and a third stop portion 726 provided on the outer peripheral surface of the telescopic rod portion 721, and the third stop portion 726 is configured to: stop the first fixed rod 710 at the first position; and / or, the first fixed rod 710 includes a fixed rod portion and a fourth stop portion provided on the outer peripheral surface of the fixed rod portion, and the fourth stop portion is configured to: stop the first telescopic rod 720 at the first position.

[0081] It is worth understanding that the first telescopic rod 720 can also limit the first position of the first telescopic rod 720 by the third stop portion 726 and / or the fourth stop portion of the first fixed rod 710, so that the first telescopic rod 720 can be quickly adjusted to the first position, which facilitates the recovery of the first telescopic rod 720 and is more convenient to use.

[0082] In this embodiment, the third stop portion 726 is a protrusion on the outer peripheral surface of the telescopic rod portion 721, and the third stop portion 726 is arranged on the side of the telescopic rod portion 721 facing the first fixed rod 710, so that the third stop portion 726 stops at the end surface of the first fixed rod 710, and the fourth stop portion is a protrusion on the outer peripheral surface of the fixed rod portion, and the fourth stop portion is arranged on the side of the fixed rod portion facing the first telescopic rod 720, so that the fourth stop portion stops the other end of the first telescopic rod 720 relative to the protruding end.

[0083] Reference Figure 1 , Figure 2 and Figure 3 As shown, in some specific embodiments of the present invention, the chassis 100 includes a main body 110 and an extension portion 120 arranged on the opposite side of the main body 110, the jacking assembly 300 is arranged on the extension portion 120, the jacking assembly 300 includes a jacking support foot 310, a jacking adjustment rod 320, a jacking adjustment member 330 and a jacking adjustment handle 340, the jacking adjustment rod 320 is passed through the extension portion 120, the bottom end of the jacking adjustment rod 320 is connected to the jacking support foot 310, the top end of the jacking adjustment rod 320 is connected to the jacking adjustment handle 340, the jacking adjustment member 330 is threadedly connected to the outer peripheral surface of the jacking adjustment rod 320, and is located below the extension portion 120, the jacking adjustment member 330 can move along the axial direction of the jacking adjustment rod 320 through a thread to lift the chassis 100.

[0084] It is worth understanding that by increasing the distance from the lifting assembly 300 to the center of the chassis 100 through the extension 120, and the center of mass is generally located at a point on the central plane of the chassis 100, the supporting torque of the lifting assembly 300 on the chassis 100 is increased, thereby increasing the stability of the chassis 100.

[0085] In this embodiment, four steel pipes are connected to form a main frame, and two parallel steel pipes are connected between the other two parallel steel pipes and close to the middle position of the other two parallel steel pipes, so that both ends of the other two parallel steel pipes extend out of the two parallel steel pipes, and the extended part forms an extension part 120, and the unextended part forms a rectangular main body 110 with the two parallel steel pipes.

[0086] As another implementation, four steel pipes may be combined to form a rectangle to form the main body 110 , and four extended steel pipes may be welded at four angles of the rectangle to form the extension 120 .

[0087] Reference Figure 7 and Figure 8As shown, in some specific embodiments of the present utility model, the conveying platform 600 includes a base 610 for placing a battery pack, a push-pull seat 620 provided on the base 610, and a pulling member 630 for detachably connecting the battery pack, the push-pull seat 620 can reciprocate along a first direction and a second direction opposite to the first direction, and can push the battery pack along the first direction, the push-pull seat 620 is provided with a mounting portion 621, and a portion of the pulling member 630 can be limitedly mounted on the mounting portion 621 to be pulled by the push-pull seat 620 along the second direction;

[0088] The push-pull seat 620 is configured to: push out the battery pack in the base 610 when moving along the first direction; and when moving along the second direction, the pulling member 630 is connected to the battery pack and installed on the mounting portion 621, and the pulling member 630 and the battery pack are pulled to the base 610 through the mounting portion 621.

[0089] It is worth understanding that the battery pack is pushed out by the push-pull seat 620. Through the cooperation between the push-pull seat 620 and the pull rod, when the pull rod is connected to the battery pack and installed in the installation part 621, the push-pull seat 620 pulls the battery pack through the pull rod, so that the battery pack is pulled into the base 610, realizing the semi-automatic transfer of the battery pack, improving the transfer efficiency of the battery pack, reducing the manual labor intensity during the transfer of the battery pack, and improving work efficiency.

[0090] In this embodiment, the base 610 has a frame formed by connecting a plurality of steel pipes. The frame-shaped base 610 has a lower deadweight and is lightweight. The base 610 can also be composed of a whole plate, and a groove or through slot is opened on the plate to place other structures. A plurality of rollers are arranged in the frame and spaced along the first direction. Each roller is sleeved with at least one unpowered roller. The rolling of the unpowered roller assists the movement of the battery pack, and the contact line between all the unpowered rollers and the battery pack forms the table surface of the base 610. The frame includes a main frame with a rectangular outline and a sub-frame connected to one end of the main frame along the first direction. The size of the sub-frame is smaller than that of the main frame. The sub-frame and the main frame are axially symmetrically distributed. Unpowered rollers are arranged on the sub-frame and the main frame. The sub-frame makes it easier to load the battery pack. The end of the main frame away from the sub-frame is fixedly connected to the vertical moving member 500.

[0091] The push-pull seat 620 is formed by a linear reciprocating mechanism that has the ability to move repeatedly in a first direction and a second direction. The linear reciprocating mechanism can be a mechanism with a linear movement stroke, such as a screw slider mechanism, a pulley transmission mechanism, a sprocket transmission mechanism, and a telescopic rod mechanism. In this embodiment, a sprocket transmission mechanism is adopted. The sprocket transmission structure has a larger transmission force and can reliably drive a battery pack weighing hundreds of kilograms. In addition, the sprocket transmission structure has a mature structure, low cost, and easy maintenance. The sprocket transmission mechanism includes a first driving source, a driving gear, a transmission gear, and a transmission chain. The push-pull seat 620 is fixedly connected to the transmission chain. The center position of the driving gear is transmission-connected to the first driving source, and the outer peripheral surface of the driving gear is transmission-connected to the transmission chain. The transmission gear is transmission-connected to the transmission chain. All transmission gears and driving gears tighten the transmission chain to form a circular return chain. The rotation direction of the driving gear is controlled by the first driving source, and then the transmission chain is controlled to move in the first direction or the second direction, so that the push-pull seat 620 moves in the first direction or the second direction. The first driving source is a device with rotational power, such as a motor, an electric motor, or a combustion engine.

[0092] The pulling member 630 is a pulling rod, including a main rod and branch rods connected to both ends of the main rod, the axes of the two branch rods extend in the same direction perpendicular to the axis of the main rod, or the axes of the branch rods and the axis of the main rod are set at an angle, the two branch rods extend from the same side of the main rod, the ends of the two branch rods are used to connect the battery pack, and the main rod is used to be installed on the installation part 621, so that the push-pull seat 620 is connected to the battery pack. The pulling rod can be a cylindrical rod or a square rod. The pulling member 630 can also be a flexible member, such as a pull rope.

[0093] The following is an exemplary description of an application scenario in which the conveying platform 600 is used to transfer the battery packs in the battery cabinet. The following content does not constitute a specific limitation to the present invention:

[0094] First, the conveying platform 600 is moved to the battery transfer position of the battery cabinet. When there is a height difference between the conveying platform 600 and the battery compartment in the vertical direction, the lifting assembly 300 is used to lift the chassis 100, and the first telescopic rod 720 of the first diagonal bracing assembly 700 is fixed at the second position, and the second telescopic rod 820 of the second diagonal bracing assembly 800 is fixed at the second position, so that the chassis 100 is supported and more stable when used;

[0095] Next, the vertical moving member 500 drives the conveying platform 600 to rise until the conveying platform 600 is aligned with the battery compartment.

[0096] Finally, after the conveying platform 600 is aligned with the battery compartment, when the battery pack placed on the conveying platform 600 needs to be transferred to the battery compartment in the battery cabinet, the push-pull seat 620 in the conveying platform 600 moves along the first direction, and pushes the battery pack placed on the table top of the base 610 to move along the first direction, so that the battery pack is pushed out into the battery compartment along the first direction; when the battery pack in the battery compartment needs to be transferred to the conveying platform 600, it is necessary to manually connect the pulling member 630 to the battery pack, and install the pulling member 630 in the installation portion 621 of the push-pull seat 620. After installation, the push-pull seat 620 moves along the second direction, driving the pulling member 630 to pull the battery pack along the second direction, so that the battery pack is pulled to the table top of the base 610, and the conveying platform 600 can continue to transfer the battery pack subsequently.

[0097] In the above application scenario, the lifting assembly 300, the first diagonal brace assembly 700 and the second diagonal brace assembly 800 are manually deployed to improve the stability of the cart. The conveying platform 600 manually connects the pulling member 630 with the battery pack and installs the pulling member 630 on the installation portion 621. The other transfer work is completed by the push-pull seat 620, realizing the semi-automatic transfer of the battery pack, reducing the labor intensity, and the mechanical transfer of the battery pack is more efficient, which improves the work efficiency of the workers.

[0098] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A cart, characterized in that: include: Chassis; A moving wheel set, connected to the chassis, for moving on the ground; A lifting assembly, provided on the chassis, for lifting the chassis until the moving wheel set is suspended in the air; A stand, connected to the chassis in a vertical direction; A vertical moving member, which is transmission-connected to the stand and can move along the vertical direction; A conveying platform, connected to the vertical moving member, capable of being raised and lowered under the drive of the vertical moving member, and the conveying platform is used to transfer the battery pack; A first diagonal brace assembly is connected to a side of the stand away from the conveying platform and can tilt and support the stand, the first diagonal brace assembly includes a first fixed rod and a first telescopic rod that can extend relative to the first fixed rod, the first telescopic rod has a first position and a second position that can be fixed to the first fixed rod; The first telescopic rod is configured to: retract to the first fixed rod in the first position; extend to the first fixed rod in the second position, and the first diagonal support assembly tilts to support the stand, and the lifting assembly lifts the chassis until the moving wheel assembly is suspended in the air; and / or, A second diagonal brace assembly is connected to a side of the stand facing the conveying platform and is capable of tilting and supporting the stand, the second diagonal brace assembly comprising a second fixed rod and a second telescopic rod capable of extending relative to the second fixed rod, the second telescopic rod having a third position and a fourth position capable of being fixed to the second fixed rod; Wherein, the second telescopic rod is configured to: retract to the second fixed rod in the third position; extend to the second fixed rod in the fourth position, and the second diagonal support assembly supports the stand, and the lifting assembly lifts the chassis until the moving wheel group is suspended in the air.

2. The cart according to claim 1, characterized in that: The first telescopic rod comprises a telescopic rod portion and a sliding sleeve portion connected to one end of the telescopic rod portion, the sliding sleeve portion is slidably sleeved on the outer circumference of the first fixed rod, the outer circumference of the sliding sleeve portion is provided with a first through hole, the outer circumference of the first fixed rod is provided with a first limiting hole and a second limiting hole both of which can be aligned with the first through hole, and the first diagonal bracing assembly further comprises a fixing pin for fixing the first telescopic rod and the first fixed rod; The fixing pin is configured such that: when the first telescopic rod is fixed at the first position, the fixing pin is inserted into the first through hole and the first limiting hole; when the first telescopic rod is fixed at the second position, the fixing pin is inserted into the first through hole and the second limiting hole.

3. The cart according to claim 2, characterized in that: The first telescopic rod further comprises a limiting portion, which is arranged on the outer peripheral surface of the sliding sleeve portion, and has a limiting state and a relaxed state; The limiting portion is configured as follows: in the limiting state, when the first telescopic rod is fixed at the first position, the fixing pin is limited to be disengaged from the first through hole and the first limiting hole, or when the first telescopic rod is fixed at the second position, the fixing pin is limited to be disengaged from the first through hole and the second limiting hole; in the relaxed state, the fixing pin is not restricted to be disengaged from the first through hole and the first limiting hole, or the fixing pin is not restricted to be disengaged from the first through hole and the second limiting hole.

4. The cart according to claim 3, characterized in that: The limiting part is a buckle lock body, and the end surface of the fixing pin that is not inserted into the first through hole is provided with a lock hook, and the buckle lock body can be locked with the lock hook; The limiting portion is configured such that: in the limiting state, the buckle lock body is locked to the lock hook; in the released state, the buckle lock body is not locked to the lock hook.

5. The cart according to claim 2, characterized in that: The first fixing rod comprises a fixing rod portion and a first stop portion provided on an outer peripheral surface of the fixing rod portion, wherein the first stop portion is configured to: stop the sliding sleeve portion at the first position; And / or, the first fixing rod includes a fixing rod portion and a second stopping portion provided on an outer peripheral surface of the fixing rod portion, and the second stopping portion is configured to stop the sliding sleeve portion at the second position.

6. The cart according to claim 1, characterized in that: The first diagonal support assembly also includes a first diagonal support leg, which is rotatably connected to the extended end of the first telescopic rod.

7. The cart according to claim 6, characterized in that: The first oblique support leg comprises a support layer and a friction layer connected to the bottom surface of the support layer, the support layer is rotatably connected to the protruding end, and the friction layer is used to increase the friction force during the oblique support.

8. The cart according to claim 1, characterized in that: The first telescopic rod comprises a telescopic rod portion and a third stop portion provided on an outer peripheral surface of the telescopic rod portion, wherein the third stop portion is configured to: stop the first fixed rod at the first position; And / or, the first fixing rod includes a fixing rod portion and a fourth stopping portion provided on an outer peripheral surface of the fixing rod portion, and the fourth stopping portion is configured to stop the first telescopic rod at the first position.

9. The cart according to claim 1, characterized in that: The chassis includes a main body and an extension portion arranged on the opposite side of the main body, the jacking assembly is arranged on the extension portion, the jacking assembly includes a jacking support foot, a jacking adjustment rod, a jacking adjustment member and a jacking adjustment handle, the jacking adjustment rod is passed through the extension portion, the bottom end of the jacking adjustment rod is connected to the jacking support foot, the top end of the jacking adjustment rod is connected to the jacking adjustment handle, the jacking adjustment member is threadedly connected to the outer peripheral surface of the jacking adjustment rod and is located below the extension portion, and the jacking adjustment member can be moved along the axial direction of the jacking adjustment rod through a thread to lift and lower the chassis.

10. The cart according to claim 1, characterized in that: The conveying platform includes a base for placing a battery pack, a push-pull seat provided on the base, and a pulling member for detachably connecting the battery pack, the push-pull seat can reciprocate along a first direction and a second direction opposite to the first direction, and can push the battery pack along the first direction, the push-pull seat is provided with a mounting portion, and a portion of the pulling member can be limitedly mounted on the mounting portion so as to be pulled by the push-pull seat along the second direction; The push-pull seat is configured to: push out the battery pack in the base when moving along the first direction; and pull the pulling member and the battery pack to the base through the mounting portion when moving along the second direction and the pulling member is connected to the battery pack and mounted on the mounting portion.

Images