Transporter structure

Abstract

The application discloses a kind of transport vehicle structures, it is related to transport vehicle technical field, wherein, transport vehicle structure includes mobile chassis, mounting frame and strutting frame, mobile chassis has the first chassis end and second chassis end in the first direction, one end of the mounting frame is rotationally mounted in the second direction along the axis of extension above the first chassis end, wherein, the first direction and the second direction are two mutually perpendicular directions in horizontal plane, one end of the strutting frame is rotationally mounted in the second direction along the axis of extension above the second chassis end, the other end of the strutting frame is connected to the mounting frame by detachable hinged mounting structure;The transport vehicle structure provided by the application can be adjusted according to the specific use scene of the vehicle body structure, effectively solve the inconvenience problem in the process of moving TV, while effectively reducing the problem of knocking in the process of moving TV, with good application prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transport vehicles, in particular to a transport vehicle structure. BACKGROUND

[0002] With the continuous increase in the size of televisions, it becomes increasingly difficult for televisions to enter elevators and user doors, especially with packaging. As televisions increase in size, packaging also increases. In order to meet the mechanical test and logistics transportation standards, the packaging size is limited and cannot be made very small. However, the size of the residential elevator is standard and will not change due to the entry and exit of the television. At present, there are more and more high-rise residential areas, and it is very difficult for after-sales workers to carry a larger and heavier television up the stairs to dozens of floors, and the television is easily damaged. At present, after-sales personnel often unpack the machine at the bottom of the building and carry it into the elevator. The television is large and heavy, and in the absence of protection, it is often scratched with the elevator, bottom surface, etc. during the process, which may cause scratches on the appearance parts, or even break the liquid crystal glass, resulting in a large loss. The present application proposes a transport vehicle structure to solve the above-mentioned inconvenience problems in the process of carrying the traditional television. SUMMARY

[0003] The main purpose of the present application is to provide a transport vehicle structure to solve the problem of inconvenience and damage in the process of carrying the television during the installation of the television.

[0004] To achieve the above-mentioned purpose, the transport vehicle structure provided by the present application comprises:

[0005] A moving chassis has a first chassis end and a second chassis end in a first direction;

[0006] An installation frame is rotatably installed above the first chassis end along an axis extending in a second direction, wherein the first direction and the second direction are two perpendicular directions in a horizontal plane; and

[0007] A supporting frame is rotatably installed above the second chassis end along an axis extending in the second direction, and the other end of the supporting frame is connected to the installation frame through a detachable hinged mounting structure;

[0008] The transport vehicle structure has multiple use states that can be switched with each other, and the multiple use states include a first folding state, a second folding state and an unfolded state.

[0009] In the first folding state, the mounting frame and the supporting frame are stacked above the mobile base; in the second folding state, one of the mounting frame and the supporting frame is stacked above the mobile base, and the other of the mounting frame and the supporting frame is used to pull the mobile base; and in the unfolded state, the mounting frame is flipped up, and the other end of the supporting frame is supported on the mounting frame, so that the mounting frame is used to mount the piece to be transported.

[0010] In an embodiment, a hanging portion and a connecting portion are formed on the mounting frame, and the hanging portion and the connecting portion are arranged in a vertical direction in correspondence with the unfolded state, and the hanging portion is used to hang the piece to be transported.

[0011] The transport vehicle structure further comprises an inclination adjustment structure, which is used to adjust the distance between the connecting portion and the piece to be transported in a first direction, so that the piece to be transported can rotate around the hanging portion as a rotation center, and the horizontal inclination angle formed between the piece to be transported and a horizontal plane can be adjusted.

[0012] In an embodiment, the transport vehicle structure comprises a hanger, which is hung on the hanging portion of the mounting frame.

[0013] The inclination adjustment structure is used to adjust the distance between the connecting portion and the hanger.

[0014] In an embodiment, the inclination adjustment structure comprises a pushing arm, which is rotatably mounted on the connecting portion along an axis extending in a vertical direction, and the pushing arm has a retracted position and a pushing position, in correspondence with the retracted position, the pushing arm is retracted from the hanger, so that the hanger is attached to the connecting portion.

[0015] In correspondence with the pushing position, the pushing arm is supported between the connecting portion and the hanger.

[0016] In an embodiment, the inclination adjustment structure comprises a first pushing rod, one end of the first pushing rod is connected to the connecting portion of the mounting frame, and the first pushing rod has a first pushing rod segment protruding from the mounting frame, an end of the first pushing rod segment is used to abut against the hanger, and the length of the first pushing rod segment is adjustable.

[0017] In an embodiment, the first pushing rod comprises a first screw member, a threaded hole is formed on the connecting portion, and the first screw member is threadedly mounted in the threaded hole.

[0018] The first pushing rod segment comprises a portion of the first screw member protruding out of the threaded hole.

[0019] In an embodiment, the distance between the connecting portion and the mounting frame in the second direction is adjustable.

[0020] In an embodiment, the mounting frame comprises an upper mounting frame and a lower mounting frame, the upper mounting frame and the lower mounting frame are rotatably mounted along an axis extending in the second direction, the mounting portion is formed on the upper mounting frame;

[0021] The inclination adjusting structure comprises a second screw member, one end of the second screw member is rotatably mounted on the upper mounting frame;

[0022] A threaded sleeve member is provided on the supporting frame, the end of the second screw member is threadedly mounted in the threaded sleeve member.

[0023] In an embodiment, the transport trolley structure comprises a hanger, a mounting body is provided on the hanger, the mounting body is formed with a mounting groove, the hanger is clamped on the mounting portion through the mounting groove;

[0024] The transport trolley structure further comprises a first height adjusting structure, the first height adjusting structure comprises an abutting portion movably mounted in the mounting body in the up-down direction, the abutting portion is used to abut on the mounting portion, wherein the length of the portion of the abutting portion protruding out of the mounting groove is adjustable, so that the height of the hanger is adjustable.

[0025] In an embodiment, the first height adjusting structure further comprises a pushing screw, one end of the pushing screw is rotatably mounted on the mounting body, the other end of the pushing screw is connected with the abutting portion.

[0026] In an embodiment, a mounting portion is formed on the mounting frame;

[0027] The transport trolley structure further comprises a second height adjusting structure, the second height adjusting structure is used to adjust the position of the mounting portion in the up-down direction.

[0028] In an embodiment, the moving chassis comprises an upper chassis and a lower chassis provided below the upper chassis, the mounting frame and the supporting frame are both connected to the upper chassis;

[0029] The second height adjusting structure is provided between the upper chassis and the lower chassis, so that at least the position of the mounting frame in the up-down direction is adjustable.

[0030] In an embodiment, the upper chassis and the lower chassis are rotatably connected along an axis extending in the second direction corresponding to one end of the first chassis end;

[0031] The second height adjusting structure is used to adjust the opening size of the upper chassis and the lower chassis corresponding to the second chassis end.

[0032] In one embodiment, the second height adjustment structure further includes a third screw, one end of which is rotatably mounted on the upper base frame, and the other end of which is threadedly connected to the lower base frame.

[0033] The technical solution of this invention, by adopting the aforementioned transport vehicle structure, allows the vehicle to be folded and placed on it during transportation, saving space. Upon arrival at the user's community, the trolley can be partially unfolded to assist in transporting the packaged box to the elevator entrance. The trolley can also be fully unfolded and reassembled to assist in entering the elevator. After unpacking, the television can be hung diagonally on the trolley, with the angle precisely aligned with the diagonal of the elevator door, fully utilizing the principle that the diagonal of a quadrilateral is the longest, resulting in a higher pass rate for the television. For some large-sized televisions, even entering at an angle with the bare unit is a limit, and errors in the elevator's stopping position can significantly affect safe entry. To address this issue, the trolley has angle and height adjustment functions, allowing for precise adjustment of the television's position before entering the elevator, making entry safer. This effectively solves the inconvenience of transporting televisions and significantly reduces the risk of bumps and knocks during transport, demonstrating promising application prospects. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a structural embodiment of the transport vehicle structure provided by the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram of the first folded state of the transport vehicle structure;

[0037] Figure 3 for Figure 1 A schematic diagram of the second folded state of the transport vehicle structure;

[0038] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle;

[0039] Figure 5 for Figure 1 Enlarged structural diagram at point B;

[0040] Figure 6 for Figure 1 A schematic diagram of another embodiment of the transport vehicle structure;

[0041] Figure 7 For Figure 6 Enlarged structural schematic view at C;

[0042] Figure 8 For Figure 6 Enlarged structural schematic view at D;

[0043] Figure 9 For Figure 6 Enlarged structural schematic view at E;

[0044] Figure 10 For Figure 6 Sectional view of one plane along the direction of the first adjusting screw axis;

[0045] Figure 11 For Figure 10 Enlarged structural schematic view at F.

[0046] BRIEF DESCRIPTION OF DRAWINGS

[0047] 1, mobile chassis; 11, lower chassis; 12, upper chassis; 13, spring; 2, mounting frame; 21, upper mounting frame; 22, lower mounting frame; 23, middle rod part; 24, sliding slot hole; 3, supporting frame; 4, hanging frame; 41, hanging body; 411, long round hole; 412, hanging slot; 42, pushing screw; 43, abutting part; 431, protruding part; 51, pushing arm; 52, first pushing rod; 53, sleeve piece; 61, second screw piece; 62, threaded sleeve piece; 63, mounting seat structure; 64, mounting block; 71, connecting plate; 72, bolt structure; 81, through hole; 82, support piece; 821, first support piece; 822, second support piece; 83, first adjusting screw; 84, nut piece; 9, hanging lug.

[0048] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0050] It should be noted that if the embodiment of the present application involves directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, motion condition, etc. between components in a certain posture, and if the certain posture changes, the directionality indication also changes accordingly.

[0051] In addition, if the embodiment of the present application involves the description of "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0052] With the continuous increase of the size of the television, it becomes more and more difficult for the television to enter the elevator and the user door, especially with the package, with the increase of the size of the television, the package also increases, under the condition of meeting the mechanical test, the logistics transportation standard, the package size is limited and cannot be very small, but the size of the residential elevator is standard, and will not change because of the entry and exit of the television; and now there are more and more high-rise communities, and it is very difficult for the after-sales workers to carry the larger and heavier television to dozens of floors by the stairs, and the television is easily damaged, at present, the after-sales personnel often unpack the machine in the elevator, the television is larger and heavier, and in the absence of protection, it is often scratched with the elevator, the bottom surface, etc. during the process, which may scratch the appearance part, or even break the liquid crystal glass, resulting in great loss. The present scheme provides a transport vehicle structure for solving the above-mentioned inconvenience problem in the traditional television carrying process.

[0053] The present application provides a transport vehicle structure.

[0054] Please refer to Figures 1 to 11In an embodiment of the present application, the transport trolley structure is mainly provided as a foldable structure. In actual use, the moving base 1 is a bottom support structure of the entire transport trolley structure, and a plurality of universal wheel structures are arranged on the lower end of the moving base 1, which can facilitate the movement of the entire structure. The mounting frame 2 and the supporting frame 3 are arranged on the moving base 1. One end of the mounting frame 2 and the supporting frame 3 is rotatably mounted on the first base end and the second base end respectively, and the other end of the mounting frame 2 and the supporting frame 3 is connected through a detachable hinge mounting structure, so that the mounting frame 2 and the supporting frame 3 together with the moving base 1 form a triangular support structure. In this embodiment, the hinge mounting structure is specifically provided as a pin hole connection structure. Corresponding hole structures are arranged on one end of the mounting frame 2 and the supporting frame 3. When the hole structures correspond, the hinge connection of the end of the mounting frame 2 and the supporting frame 3 can be achieved by inserting a pin. The triangular support structure formed thereby is in an unfolded state of the entire transport trolley structure. In this state, the mounting frame 2 is used to mount the transport piece, and the supporting frame 3 is used to provide support for the mounting frame 2. When the transport piece is a television, the television structure without outer packaging can be fixed on the side end face of the mounting frame 2, so as to be transported. In addition to the unfolded state, the transport trolley structure also includes a first folding state and a second folding state. Specifically, the first folding state is a full folding state. In this state, the mounting frame 2 and the supporting frame 3 can be folded in a horizontal state above the moving base 1. In order to achieve the above horizontal folding state, at least one of the mounting frame 2 and the supporting frame 3 has a higher vertical height of the mounting position than the other one, so as to achieve horizontal folding. When the entire structure is in a storage state, it can have a smaller floor space, and the structure is relatively flat. The storage and use process is also more convenient. For the second folding state, one of the mounting frame 2 and the supporting frame 3 is in a folded state and is attached to the upper end face of the moving base 1, and the other frame structure is in an unfolded state. In this state, the frame structure in the unfolded state forms a handle structure. At this time, the television structure with packaging can be placed above the stacked frame structure, and the other frame body drives the entire trolley structure to move, so as to facilitate the movement of the entire television structure to the elevator port during delivery. Because the outer packaging structure of the television is large, it will increase the size of the entire television. For large television structures, it is generally difficult to deliver them to the elevator together with the outer packaging. Therefore, during the delivery and installation process, the outer packaging of the television is usually removed and then delivered to the elevator. The related structure in this embodiment can switch among the above three states, so as to make the transportation of the television more convenient and effectively solve the problem of difficult installation of large size televisions.

[0055] In the process of transporting the television in its unfolded state, a hanging part is provided on the upward end of the mounting bracket 2 during the actual fixing process. The television is suspended on this hanging part. At this time, the outer packaging of the television has been removed. To facilitate the hanging of the television, a corresponding hanging structure is generally provided on the wall mounting hole on the back of the television. During specific installation, the television is hung on one end of the mounting bracket 2 through the hanging structure, while the downward end of the television is supported by the connecting part below the hanging part. Considering that the television may pass through various door frame structures during transportation, a tilt adjustment structure is provided on the transport vehicle structure to improve the passage of the television through hole structures. The tilt adjustment structure can adjust the distance between the connecting part and the object to be transported in the first direction (horizontal plane direction), so that the object to be transported can rotate around the hanging part as the rotation center, and the size of the horizontal tilt angle formed between it and the horizontal plane can be adjusted.

[0056] The tilt adjustment structure described above needs to be set according to the actual shape of the triangular support structure. For example, when the mounting bracket 2 is set as follows... Figure 1 The structure shown indicates that when the mounting bracket 2 is in the unfolded state and its support height is insufficient to meet the actual length of the television, a wall mount 4 (equivalent to the aforementioned suspension structure) is needed to install the television. Specifically, the wall mount 4 is a long strip structure, and its length direction corresponds to the length direction of the television during installation. The two ends of the wall mount 4 are provided with mounting holes corresponding to the wall mounting holes of the television. The wall mount 4 is first installed on the back cover of the television using bolts or other structures, so that the wall mount 4 and the television form a suspended integral structure. Then, the mounting body 41 on the wall mount 4 is placed on the mounting part at the end of the mounting bracket 2, thereby suspending the television with the help of the wall mount 4. When adjusting the tilt angle of the television, the place where the mounting groove 412 on the mounting body 41 contacts the mounting part serves as the rotation center of the wall mount 4 and the television.

[0057] Specifically, the inclination adjustment structure includes two parts of a coarse adjustment structure and a fine adjustment structure. The coarse adjustment structure mainly includes a pushing arm 51 mounted on the connecting part, the pushing arm 51 having a certain length, and being rotatable to be out of contact with the hanger 4 in an avoiding position, at which time the hanger 4 is in contact with the connecting part, and the horizontal inclination angle of the hanger 4 and the television set is large. When in a pushing position, the pushing arm 51 is rotated to abut against the hanger 4 at the end thereof, at which time the hanger 4 is rotated about the position of the hanging groove 412, and the downward end part of the hanger 4 is synchronously separated from the connecting part, at which time the horizontal inclination angle of the hanger 4 and the television set is small. When the pushing arm 51 is used for coarse adjustment, the rotation angle of the hanger 4 and the television set relative to the fine adjustment structure is large, and considering that the vertical height of the mounting rack 2 is small, the rotation center of the hanger 4 can be below the middle position of the hanger 4. In order to avoid the hanger 4 and the television set from being tilted toward the other side of the mounting rack 2, a spring 13 is arranged on the moving base 1, and when the pushing arm 51 abuts against the hanger 4, one end of the spring 13 is synchronously connected to the downward end part of the hanger 4. Through the force of the spring 13, the pushing arm 51 and the side wall of the hanger 4 can be kept in stable contact, thereby effectively preventing the hanger 4 from being tilted, and further improving the stability of the whole vehicle structure during transportation.

[0058] The fine adjustment structure mainly includes a first pushing rod 52 mounted on the connecting part, one end of the first pushing rod 52 corresponding to the downward end part of the side wall of the hanger 4, and a section of the first pushing rod 52 corresponding to the hanger 4 being adjustable, that is, the length of one side of the first pushing rod 52 corresponding to the hanger 4 is adjustable. When the one end of the first pushing rod 52 moves toward the hanger 4, the hanger 4 can be pushed to rotate a certain inclination angle on the mounting rack 2. In order to make the first pushing rod 52 have self-locking property and avoid the first pushing rod 52 from being reset without human contact, in this embodiment, the first pushing rod 52 is specifically a first screw member mounted on a threaded hole on the connecting part. When the first screw member is rotated, the length of the section of the first screw member between the connecting part and the hanger 4 can be changed, thereby pushing the hanger 4 to rotate by different degrees. It can be understood that the stability of the hanger 4 during inclination adjustment can also be ensured by the spring 13 during adjustment of the first screw member.

[0059] Corresponding to different television structure, the position of the hole in the wall can be different, in order to ensure that the push arm 51 and the first screw part of one end can always and the downward end of the side wall of the bracket 4 corresponding, the connecting part is also set to horizontal position adjustable. Specifically, the mounting frame 2 is provided with the intermediate rod part 23 arranged along the second direction (horizontal plane and the first direction perpendicular), the connecting part is specifically set to sleeve piece 53, the sleeve piece 53 is slidingly installed on the intermediate rod part 23, the push arm 51 and the first screw part are all installed on the sleeve piece 53, the sleeve piece 53 and the intermediate rod part 23 have certain contact force, under the condition of non-human adjustment, it is difficult to produce relative motion, when the specification of the television changes, while the position of the hole in the wall changes, the actual position of the sleeve piece 53 on the intermediate rod part 23 can be adjusted, so that the inclination adjusting structure can be corresponding to the position of the bracket 4. It can be thought that the bracket 4 should be provided with at least two, in order to realize the stable suspension of the television, such as Figure 1 As shown, here will not be too much repetition.

[0060] Another case is, as Figure 6As shown, the overall size of the mounting frame 2 is large, which can meet the requirements of the television hanging alone. At this time can be hung on the mounting frame 2 end of the ear 9 on the hanging part, the ear 9 is also installed in the wall hole position of the TV, the actual operation process, the ear 9 can be installed in the wall hole of the TV through the screw structure. Then the whole television is suspended on the upper end of the mounting frame 2. In addition, the embodiment is also provided with the corresponding inclination adjusting structure, which adjusts the horizontal inclination of the mounting frame 2 by adjusting the included angle between the mounting frame 2 and the support frame 3. Specifically, the sliding groove hole 24 is provided on the mounting frame 2, and the upper end of the support frame 3 is slidingly installed in the sliding groove hole 24, so that the relative movement between the mounting frame 2 and the upper end of the support frame 3 can be realized. Two corresponding mounting seat structures 63 are respectively provided on the mounting frame 2 and the support frame 3. The mounting seat structure 63 on the mounting frame 2 is provided with a mounting block 64 rotatably connected thereto, and the second screw rod 61 in the inclination adjusting structure is rotatably installed on the mounting block 64 on the mounting frame 2. The mounting seat structure 63 on the support frame 3 is provided with a threaded sleeve 62, and the end of the second screw rod 61 is threadedly installed in the threaded sleeve 62. The hand wheel structure is further provided on the end of the second screw rod 61 corresponding to the threaded sleeve 62. By rotating the hand wheel structure, the end of the support frame 3 can be moved in the sliding groove hole 24 of the mounting frame 2, so that the end of the support frame 3 can push and pull the mounting frame 2, thereby adjusting the actual horizontal inclination of the mounting frame 2.

[0061] It is to be explained that, in the above embodiment, the support height of the mounting frame 2 is relatively high, in order to ensure that the entire transport vehicle structure has a small space occupancy when it is folded, in actual implementation, the mounting frame 2 includes two parts of the upper mounting frame 21 and the lower mounting frame 22, one end of the upper mounting frame 21 is rotatably mounted on the lower mounting frame 22, and the two can be folded. When fully expanded, the upper mounting frame 21 and the lower mounting frame 22 can be fixedly connected by the connecting plate 71 and the pin hole structure, so as to form an integral whole therebetween. Similarly, the supporting frame 3 can also be provided as a two-part frame structure, and in actual expansion, the two frame bodies can also be stably connected by the above-mentioned manner, so as to arrange the connection position of the mounting frame 2 and the supporting frame 3 on the upper mounting frame 21 as much as possible, thereby improving the support gravity center of the entire frame structure, and improving the stability of the entire frame structure during transportation. In combination with the scheme design in the embodiment, the sliding groove hole 24 and the mounting seat structure 63 are arranged on the upper mounting frame 21. As described above, the mounting frame 2 and the supporting frame 3 are both composed of two frame structures, and after the connection between the connecting plate 71 and the latch structure 72 is released, the mounting frame 2 and the supporting frame 3 can still maintain a compact folded state, thereby improving the convenience of the entire transport vehicle structure as much as possible.

[0062] During the transportation of the television on the transport vehicle structure, the television structure is in a suspended state, and the downward end thereof is relatively close to the ground. Since the external transportation environment may have a road surface undulation, in order to avoid the downward end of the television from contacting the ground and causing damage to the television body. Therefore, a height adjusting structure is further arranged on the transport vehicle structure, and the height adjusting structure is also arranged as two kinds for the above-mentioned two kinds of mounting frame 2 structures.

[0063] Specifically, the first height adjusting structure corresponds to the above-mentioned small suspension height, and the mounting frame 2 for suspending the television by the hanger 4 is suspended, such as Figure 1 and Figure 4As shown, the first height adjustment structure specifically includes an abutting portion 43, which is mounted inside the hanging body 41 and has a movement stroke along the tilting direction of the mounting frame 2. During the movement of the abutting portion 43, the abutting portion 43 is guided by the cooperation between the convex portion 431 on the side wall of the abutting portion 43 and the oblong hole 411 on the hanging body 41. Specifically, the lower end of the abutting portion 43 abuts against the hanging portion, and the upper end of the abutting portion 43 is connected to the end of the pushing screw 42 mounted on the hanging body 41. When the pushing screw 42 rotates, the abutting portion 43 can be driven to move inside the hanging body 41 in cooperation with the gravity of the television set, so as to make the mounting frame 4 as a whole move in the vertical direction, thereby adjusting the ground clearance of the lower end of the television set.

[0064] In addition, the second height adjustment structure corresponds to the mounting frame 2 as shown in the drawings. Figure 6 If the suspension height of the television set is adjusted at the specific suspension position in the above embodiment, the adjustment operation is not convenient enough because the entire suspension position already has a relatively high vertical position height. Therefore, in the embodiment, the second height adjustment structure is arranged on the mobile base frame 1.

[0065] Specifically, the mobile base frame 1 is arranged in a double-layer structure and includes an upper base frame 12 and a lower base frame 11. The upper base frame 12 and the lower base frame 11 are connected to each other along the axis extending in the second direction at one end of the first base frame end. The second height adjustment structure is mounted on the upper base frame 12, and the lower base frame 11 is connected to the second height adjustment structure. The second height adjustment structure is used to adjust the opening size of the upper base frame 12 and the lower base frame 11 at the second base frame end. When the opening size of the upper base frame 12 and the lower base frame 11 at the second base frame end changes, the mounting frame 2 on the upper base frame 12 can be driven to move in the vertical direction, thereby achieving the adjustment of the height of the hanging portion.

[0066] The upper chassis 12 and the lower chassis 11 are provided with corresponding through holes 81 along the vertical direction, the second height adjusting structure comprises a bracket 82, a nut 84 and a first adjusting screw 83, the bracket 82 is installed in the upper chassis 12 corresponding to the through hole 81, the bracket 82 is provided with a first adjusting screw 83 rotatably connected thereto, the nut 84 is rotatably installed on the inner side of the through hole 81 of the lower chassis 11, the threaded part of the first adjusting screw 83 cooperates with the nut 84, and the bracket 82 and the nut 84 are rotatably installed along two axes in the second direction respectively. When the first adjusting screw 83 is rotated by the adjusting handle, the nut 84 is installed on the lower chassis 11, the position of the nut 84 does not change, and it rotates along the axis in the second direction, at the same time, the first adjusting screw 83 moves vertically during rotation, so that the lower chassis 11 and the upper chassis 12 are separated from each other at one end corresponding to the second chassis end, so that the gap between the lower end of the television and the ground is adjusted by adjusting the opening position of the upper chassis 12 and the lower chassis 11. Thus, the transportation stability of the entire transportation vehicle structure on the undulating ground is improved, and the risk of damage to the television is effectively reduced. It is conceivable that the angle between the axis of the first adjusting screw 83 and the horizontal plane changes during rotation of the first adjusting screw 83 about its axis, and the two ends of the first adjusting screw 83 are arranged outside the lower chassis 11 and the upper chassis 12. In order to avoid the first adjusting screw 83, the through hole 81 is arranged as an oblong hole 411 along the first direction. In order to facilitate the installation of the first adjusting screw 83 on the bracket 82, the bracket 82 is arranged as two parts, the first bracket 821 and the second bracket 822 in the embodiment, and the opposite ends of the two brackets 82 are provided with arc-shaped grooves. The mounting hole structure is formed by the cooperation of the two arc-shaped grooves, so that the first adjusting screw 83 is installed in the middle of the mounting hole structure, and the convenience of installation of the first adjusting screw 83 is improved.

[0067] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A transport vehicle structure, characterized by, The utility model relates to a transport trolley structure, comprising: a mobile chassis having a first chassis end and a second chassis end in a first direction; a mounting frame rotatably mounted above the first chassis end along an axis extending in a second direction, wherein the first direction and the second direction are two perpendicular directions in a horizontal plane; and a supporting frame rotatably mounted above the second chassis end along an axis extending in the second direction, the other end of the supporting frame being connected to the mounting frame by a detachable hinged mounting structure; the transport trolley structure has multiple use states that can be switched with each other, and the multiple use states include a first folded state, a second folded state and an unfolded state; in the first folded state, the mounting frame and the supporting frame are both stacked above the mobile chassis; in the second folded state, one of the mounting frame and the supporting frame is stacked above the mobile chassis, and the other of the mounting frame and the supporting frame is used to pull the mobile chassis; in the unfolded state, the mounting frame is turned up, and the other end of the supporting frame is supported on the mounting frame, so that the mounting frame is used to mount a piece to be transported; a hanging part is formed on the mounting frame; the transport trolley structure further comprises a second height adjustment structure for adjusting the position of the hanging part in the up-down direction; the mobile chassis comprises an upper chassis and a lower chassis arranged below the upper chassis, and the mounting frame and the supporting frame are both connected to the upper chassis; the second height adjustment structure is arranged between the upper chassis and the lower chassis, so that the position of at least the mounting frame in the up-down direction can be adjusted; the upper chassis and the lower chassis are rotatably connected along an axis extending in the second direction corresponding to one end of the first chassis end; the second height adjustment structure is used to adjust the opening size of the upper chassis and the lower chassis at the second chassis end; corresponding through holes are formed on the upper chassis and the lower chassis in the up-down direction, the second height adjustment structure comprises a bracket, a nut and a first adjusting screw, the bracket is mounted in the upper chassis corresponding to the through hole, the first adjusting screw is rotatably connected to the bracket, the nut is rotatably mounted on the inner side of the through hole of the lower chassis, the threaded part of the first adjusting screw cooperates with the nut, and the bracket and the nut are rotatably mounted along two axes in the second direction respectively; the through hole is arranged as an oblong hole in the first direction.

2. The cart structure of claim 1, wherein, a hanging part and a connecting part are formed on the mounting frame, and the hanging part and the connecting part are arranged in the up-down direction in the unfolded state, the hanging part is used to hang the piece to be transported; the transport trolley structure further comprises an inclination adjustment structure for adjusting the distance of the connecting part relative to the piece to be transported in the first direction, so that the piece to be transported can rotate around the hanging part as the rotation center and the size of the horizontal inclination angle formed between the piece to be transported and the horizontal plane can be adjusted.

3. The cart structure of claim 2, wherein, The transport trolley structure comprises a hanger, which is hung on the hanging part of the mounting frame; The inclination adjusting structure is used to adjust the distance between the connecting part and the hanger.

4. The cart structure of claim 3, wherein, The inclination adjusting structure comprises a pushing arm, which is rotatably installed on the connecting part along the axis extending in the up-down direction, and has an avoiding position and a pushing position. Corresponding to the avoiding position, the pushing arm avoids the hanger, so that the hanger is attached to the connecting part.

5. The cart structure of claim 3, wherein, Corresponding to the pushing position, the pushing arm is arranged between the connecting part and the hanger.

6. The cart structure of claim 5, wherein, The inclination adjusting structure comprises a first pushing rod, one end of which is connected to the connecting part of the mounting frame, and has a first pushing rod segment protruding from the mounting frame. The first pushing rod segment has an end portion used to abut against the hanger, and the length of the first pushing rod segment is adjustable.

7. The cart structure of claim 2, wherein, The first pushing rod comprises a first screw rod, and a threaded hole is formed on the connecting part.

8. The cart structure of claim 2, wherein, The first pushing rod segment comprises the part of the first screw rod protruding from the threaded hole. The distance between the connecting part and the mounting frame in the second direction is adjustable. The mounting frame comprises an upper mounting frame and a lower mounting frame, which are rotatably mounted relative to each other along the axis extending in the second direction.

9. The cart structure of claim 2, wherein, The hanging part is formed on the upper mounting frame. The inclination adjusting structure comprises a second screw rod, one end of which is rotatably installed on the upper mounting frame.

10. The cart structure of claim 9, wherein, A threaded sleeve is arranged on the supporting frame, and the end portion of the second screw rod is threadedly installed in the threaded sleeve. The transport trolley structure comprises a hanger, which is hung on the hanging part of the mounting frame; The transport trolley structure further comprises a first height adjusting structure, which comprises an abutting part movably installed in the hanging body in the up-down direction. The abutting part is used to abut against the hanging part, wherein the length of the part of the abutting part protruding from the hanging slot is adjustable, so that the height of the hanger is adjustable. The first height adjusting structure further comprises a pushing screw rod, one end of which is rotatably installed on the hanging body, and the other end of which is connected to the abutting part.

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