Transport vehicle structure

Abstract

The invention discloses a transport vehicle structure, and relates to the technical field of transport vehicles, the transport vehicle structure comprises a moving underframe, a mounting rack and a supporting rack, the moving underframe is provided with a first underframe end and a second underframe end in a first direction, one end of the mounting rack is rotatably mounted above the first underframe end along an axis extending in a second direction, and the other end of the mounting rack is rotatably mounted above the second underframe end along an axis extending in a second direction; wherein the first direction and the second direction are two directions perpendicular to each other in the horizontal plane, one end of the supporting frame is rotationally installed above the second bottom frame end along the axis extending in the second direction, and the other end of the supporting frame is connected to the installation frame through a detachable hinge installation structure. According to the transport vehicle structure, the vehicle body structure can be unfolded and adjusted according to specific use scenes, the problem of inconvenience in the television carrying process is effectively solved, meanwhile, the collision problem in the television carrying process is effectively reduced, and the transport vehicle structure has good application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of transport vehicles, and in particular to a transport vehicle structure. Background Art

[0002] As the size of TV sets increases, it becomes increasingly difficult for TV sets to enter elevators and user doors, especially when they are packed. As the size of TV sets increases, the size of the packaging also increases. Under the condition of meeting the mechanical test and logistics transportation standards, the size of the packaging is limited and cannot be very small. However, the size of residential civil elevators is standard and will not change due to the entry and exit of TV sets. Now there are more and more high-rise residential areas, and it is very difficult for after-sales workers to carry large and heavy TV sets up stairs to dozens of floors, and it is very easy to damage the TV sets. At present, after-sales personnel often unpack and carry the bare TV sets into the elevator downstairs. TV sets are large and heavy. Without protection, they often scrape against elevators, bottom surfaces, etc. during the process, which may cause scratches on the exterior parts or cracks on the LCD glass, resulting in large losses. This scheme proposes a transport vehicle structure to solve the above-mentioned inconveniences in the traditional TV handling process. Summary of the invention

[0003] The main purpose of the present invention is to provide a transport vehicle structure, which aims to solve the problem that the television is inconvenient to carry and easily damaged during door-to-door installation.

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

[0005] A mobile chassis having a first chassis end and a second chassis end in a first direction;

[0006] a mounting frame, one end of which is rotatably mounted above the first base frame along an axis extending in a second direction, wherein the first direction and the second direction are two mutually perpendicular directions in a horizontal plane; and

[0007] A support frame, one end of which is rotatably mounted above the second bottom frame end along an axis extending in the second direction, and the other end of which is connected to the mounting frame via a detachable hinged mounting structure;

[0008] The transport vehicle structure has a plurality of mutually switchable use states, wherein the plurality of use states include a first folding state, a second folding state and an unfolding state;

[0009] In the first folding state, the mounting frame and the supporting frame are both stacked on top of the mobile base frame; in the second folding state, one of the mounting frame and the supporting frame is stacked on top of the mobile base frame, and the other of the mounting frame and the supporting frame is used to drag the mobile base frame; in the unfolding state, the mounting frame is flipped and stood up, and the other end of the supporting frame is supported on the mounting frame, so that the mounting frame is used to install the object to be transported.

[0010] In one embodiment, a hanging portion and a connecting portion are formed on the mounting frame. In the unfolded state, the hanging portion and the connecting portion are spaced apart in the vertical direction, and the hanging portion is used for hanging the transported object.

[0011] The transport vehicle structure also includes an inclination adjustment structure, which is used to adjust the distance between the connecting portion and the object to be transported along the first direction, so that the object to be transported can rotate with the hanging portion as the rotation center, and the size of the horizontal inclination angle formed between it and the horizontal plane can be adjusted.

[0012] In one embodiment, the transport vehicle structure includes a hanging rack, and the hanging rack 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 one embodiment, the tilt adjustment structure includes a push arm rotatably mounted on the connecting portion along an axis extending in the up-down direction, the push arm having an avoidance position and a push position, and corresponding to the avoidance position, the push arm avoids the setting of the hanger so that the hanger is attached to the connecting portion;

[0015] Corresponding to the push position, the push arm is supported between the connecting portion and the hanging bracket.

[0016] In one embodiment, the inclination adjustment structure includes a first push rod, one end of which is connected to the connecting portion of the mounting frame, and has a first push rod section protruding from the mounting frame, the end of the first push rod section is used to abut against the hanging bracket, and the length of the first push rod section is adjustable.

[0017] In one embodiment, the first push rod comprises a first screw member, a threaded hole is formed on the connecting portion, and the first screw member is threadedly installed in the threaded hole;

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

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

[0020] In one embodiment, the mounting frame includes an upper mounting frame and a lower mounting frame, the upper mounting frame and the lower mounting frame can be relatively rotatably mounted along an axis extending in the second direction, and the hanging portion is formed on the upper mounting frame;

[0021] The tilt angle adjustment structure comprises a second screw member, one end of which is rotatably mounted on the upper mounting frame;

[0022] A threaded sleeve is provided on the support frame, and the end of the second screw rod is threadably installed in the threaded sleeve.

[0023] In one embodiment, the transport vehicle structure includes a hanger, a hanging body is provided on the hanger, the hanging body is formed with a hanging slot, and the hanger is clamped on the hanging portion through the hanging slot;

[0024] The transport vehicle structure also includes a first height adjustment structure, which includes an abutment portion movably installed in the hanging body along the up and down directions, and the abutment portion is used to abut on the hanging portion, wherein the length of the abutment portion protruding outside the hanging slot is adjustable so that the height of the hanger can be adjusted.

[0025] In one embodiment, the first height adjustment structure further includes a push screw, one end of which is rotatably mounted on the hanging body, and the other end of which is connected to the abutting portion.

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

[0027] The transport vehicle structure further includes a second height adjustment structure, and the second height adjustment structure is used to adjust the position of the hanging portion in the up and down direction.

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

[0029] The second height adjustment structure is disposed between the upper base frame and the lower base frame so that at least the position of the mounting frame in the up-down direction can be adjusted.

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

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

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

[0033] The technical solution of the present invention adopts the transport vehicle structure, which can be folded and placed on the vehicle during transportation without taking up space. After arriving at the user community, the trolley can be partially unfolded to assist in transporting the packaging box to the elevator door, and the trolley can be fully unfolded and reassembled to assist in entering the elevator. After the TV is unpacked, the TV can be hung obliquely on the trolley, and the inclination is just the diagonal position of the elevator door, making full use of the principle that the diagonal of a quadrilateral is the longest, and the TV passing rate is higher; for some large-size TVs, even if the naked machine enters obliquely, it is the limit to enter, and the elevator stop position error will also have a great impact on safe entry. To address this problem, the trolley has functions such as angle adjustment and height adjustment. Before entering the elevator, the position of the TV is accurately adjusted, and entering the elevator is safer, thereby effectively solving the inconvenience problem in the process of transporting the TV, and effectively reducing the risk of bumping during the transportation of the TV, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

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

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

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

[0038] Figure 4 for Figure 1 The enlarged structural diagram at A in the middle;

[0039] Figure 5 for Figure 1 The enlarged structural diagram at B in the middle;

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

[0041] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0042] Figure 8 for Figure 6 The enlarged structural diagram at D in the middle;

[0043] Fig. 9 for Figure 6 The enlarged structural diagram at E in the middle;

[0044] Fig.10 for Figure 6 A cross-sectional structural diagram of a plane along the axis direction of the first adjusting screw;

[0045] Fig.11 for Fig.10 Enlarged structural diagram at F in the middle.

[0046] Description of Figure Numbers:

[0047] 1. Mobile chassis; 11. Lower chassis; 12. Upper chassis; 13. Spring; 2. Mounting frame; 21. Upper mounting frame; 22. Lower mounting frame; 23. Intermediate rod; 24. Slide slot hole; 3. Support frame; 4. Hanging frame; 41. Hanging body; 411. Long round hole; 412. Hanging slot; 42. Push screw; 43. Abutment; 431. Protrusion; 51. Push arm; 52. First push rod; 53. Sleeve member; 61. Second screw member; 62. Threaded sleeve member; 63. Mounting seat structure; 64. Mounting block; 71. Connecting plate; 72. Pin structure; 81. Through hole; 82. Bracket member; 821. First bracket member; 822. Second bracket member; 83. First adjusting screw; 84. Nut member; 9. Hanging ear.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] As the size of TV sets increases, it becomes increasingly difficult for TV sets to enter elevators and user doors, especially when they are packed. As the size of TV sets increases, the size of the packaging also increases. Under the condition of meeting the mechanical test and logistics transportation standards, the size of the packaging is limited and cannot be very small. However, the size of residential civil elevators is standard and will not change due to the entry and exit of TV sets. Now there are more and more high-rise residential areas, and it is very difficult for after-sales workers to carry large and heavy TV sets up stairs to dozens of floors, and it is very easy to damage the TV sets. At present, after-sales personnel often unpack and carry the bare TV sets into the elevator downstairs. TV sets are large and heavy. Without protection, they often scrape against elevators, bottom surfaces, etc. during the process, which may cause scratches on the exterior parts or cracks on the LCD glass, resulting in large losses. This scheme proposes a transport vehicle structure to solve the above-mentioned inconveniences in the traditional TV handling process.

[0053] The invention provides a transport vehicle structure.

[0054] See also Figures 1 to 11In one embodiment of the present invention, the transport vehicle structure is mainly configured as a foldable structure. In actual use, the mobile chassis 1 is the bottom support structure of the entire transport vehicle structure, and a plurality of universal wheel structures are provided on its lower end, which can facilitate the movement of the entire structure. The mobile chassis 1 is mainly provided with a mounting frame 2 and a support frame 3. One end of the mounting frame 2 and the support frame 3 are rotatably mounted on the first chassis end and the second chassis end, respectively, and the other ends of the mounting frame 2 and the support frame 3 are connected by a detachable hinged mounting structure, so that the mounting frame 2 and the support frame 3 together with the mobile chassis 1 form a triangular support structure. The hinged mounting structure is specifically configured as a pin-hole connection structure in this embodiment. Corresponding hole structures are provided on one end of the mounting frame 2 and the support frame 3. When the hole structures correspond, the mounting frame 2 and the support frame 3 can be hinged by connecting them through a pin to achieve the ends of the mounting frame 2 and the support frame 3. The triangular support structure formed is the unfolded state of the entire transport vehicle structure. In this state, the mounting frame 2 is used to install the transported object, and the support frame 3 is used to provide support for the mounting frame 2. When the transported object is a TV, the TV structure without the outer packaging can be fixed on the side surface of the mounting frame 2 to transport it. In addition to the above unfolded state, the transport vehicle structure also includes a first folding state and a second folding state. Specifically, the first folding state is a fully folded state. In this state, the mounting frame 2 and the support frame 3 can be folded horizontally above the mobile chassis 1. In order to achieve the above-mentioned horizontal folding state, at least one of the ends of the mounting frame 2 and the support frame 3 connected to the mobile chassis 1 has a higher vertical height than the other, so that the horizontal folding can be achieved, so that the entire structure can have a smaller footprint when it is in the storage state, and the structure is relatively flat, and 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 folded and attached to the upper end surface of the mobile chassis 1, and the other frame structure is in an unfolded state. In this state, one of the frame structures in the unfolded state forms a handle structure. At this time, the TV structure with packaging can be placed on the top of the above-mentioned stacked frames, and the whole body structure is driven to move by the other frame, so that it is convenient to drive the whole TV structure to the elevator entrance during the delivery process. Because the outer packaging structure of the TV is large, it will increase the external size of the entire TV as a whole. For a larger TV structure, it is generally difficult to deliver it to the elevator together with the outer packaging. Therefore, the master usually removes the outer packaging of the TV and then delivers it to the elevator during the delivery and installation process. The relevant structure in this embodiment can make the transportation of the TV more convenient by switching between the above three states, and effectively solves the problem of difficult door-to-door installation of large-size TVs.

[0055] The television is transported in the above-mentioned unfolded state. In the actual fixing process, a hanging part is provided on the upward end of the mounting frame 2. The television is placed on the hanging part by hanging. At this time, the outer packaging of the television has been removed. In order to facilitate the hanging of the television, a corresponding hanging structure is generally provided on the wall-hanging hole of the rear shell of the television. During the specific installation, the television is hung on one end of the mounting frame 2 through the hanging structure, and the downward end of the television is supported by the connecting part under the hanging part. Considering that the television may pass through various door frame structures during transportation, in order to improve the passability of the television through the hole structure, an inclination adjustment structure is provided on the transport vehicle structure. The inclination adjustment structure can adjust the spacing of the connecting part relative to the transported object along the first direction (horizontal plane direction), so that the transported object can rotate with the hanging part as the rotation center, and the size of the horizontal inclination formed between it and the horizontal plane can be adjusted.

[0056] The above-mentioned inclination adjustment structure needs to be set according to the actual shape of the triangular support structure. For example, when the mounting frame 2 is set as follows Figure 1 The structure shown, that is, when the mounting frame 2 is in the unfolded state and its supporting height is difficult to meet the actual length of the TV, it is necessary to install the TV with the help of a bracket 4 (equivalent to the above-mentioned hanging structure). Specifically, the bracket 4 is arranged in a long strip structure. When installed, its length direction corresponds to the length direction of the TV. The two ends of the bracket 4 are provided with mounting hole structures corresponding to the wall-hanging holes of the TV. The bracket 4 is first installed on the back cover of the TV by means of bolts and other structures, so that the bracket 4 and the TV form an integral structure that can be hung. Then, the hanging body 41 on the bracket 4 is placed on the hanging part on the end of the mounting frame 2, so that the TV is hung with the help of the bracket 4. When the inclination angle of the TV is adjusted, the place where the hanging groove 412 on the hanging body 41 contacts the hanging part serves as the rotation center of the bracket 4 and the TV.

[0057] Specifically, the tilt adjustment structure includes a coarse adjustment structure and a fine adjustment structure. The structure of the coarse adjustment part mainly includes a push arm 51, which is installed on the connecting part. The push arm 51 has a certain length. When in the avoidance position, the push arm 51 can be rotated to not contact the bracket 4. At this time, the bracket 4 is in contact with the connecting part, and the horizontal tilt angle of the bracket 4 and the TV is large. When in the push position, the push arm 51 rotates until its end is in contact with the bracket 4. At this time, the bracket 4 rotates with the position of the hanging groove 412 as the center, and the side wall of the downward end of the bracket 4 is synchronously separated from the connecting part. At this time, the horizontal tilt angle of the bracket 4 and the TV is small. When the coarse adjustment is performed through the push arm 51, the rotation angle of the bracket 4 and the TV is larger than that of the fine adjustment structure. Considering that the vertical height of the above-mentioned mounting frame 2 is relatively small, the rotation center of the bracket 4 may be located below the middle position of the bracket 4. In order to prevent the bracket 4 and the TV from tipping over toward the other side of the mounting frame 2, a spring 13 is provided on the movable base frame 1. When the push arm 51 and the bracket 4 are in contact with each other, one end of the spring 13 is synchronously connected to the downward end of the bracket 4. Through the force of the spring 13, the push arm 51 and the side wall of the bracket 4 can maintain a stable contact relationship, thereby effectively preventing the bracket 4 from tipping over, and further improving the stability of the entire vehicle structure during transportation.

[0058] The fine adjustment structure mainly includes a first push rod 52, which is installed on the connecting portion. One end of the first push rod 52 corresponds to the side wall of the downward end of the hanger 4. The first push rod 52 corresponding to a section of the hanger 4 is an adjustable structure, that is, the length of one side of the first push rod 52 corresponding to the hanger 4 is adjustable. When one end of the first push rod 52 moves toward the hanger 4, it can push the hanger 4 to rotate a certain inclination angle on the mounting frame 2. In order to make the first push rod 52 self-locking and avoid the first push rod 52 from resetting in the case of non-human contact, in this embodiment, the first push rod 52 is specifically set as a first screw member, which is installed at the threaded hole on the connecting portion. When the first screw member rotates, the length of the part of the rod of the first screw member located between the connecting portion and the hanger 4 can be changed, thereby pushing the hanger 4 to rotate to different degrees. Of course, it is conceivable that during the adjustment of the first screw member, the stability of the bracket 4 during the inclination adjustment process can also be ensured by the spring 13 .

[0059] Corresponding to different TV structures, the position of the wall-mounted hole may be different. In order to ensure that the push arm 51 and one end of the first screw member can always correspond to the downward end side wall of the bracket 4, the connecting portion is also set to be adjustable in horizontal position. Specifically, the mounting frame 2 is provided with an intermediate rod portion 23 arranged along the second direction (perpendicular to the first direction on the horizontal plane), and the connecting portion is specifically set as a sleeve member 53. The sleeve member 53 is slidably installed on the intermediate rod portion 23. The push arm 51 and the first screw member are both installed on the sleeve member 53. There is a certain contact force between the sleeve member 53 and the intermediate rod portion 23. It is difficult to produce relative movement without manual adjustment. When the specifications of the TV change and the position of the wall hole changes at the same time, the actual position of the sleeve member 53 on the intermediate rod portion 23 can be adjusted, so that the inclination adjustment structure can correspond to the position of the bracket 4. It can be imagined that the bracket 4 should be set to at least two to achieve stable suspension and fixation of the TV. Figure 1 As shown, no further elaboration will be given here.

[0060] Another situation is that Figure 6As shown, when the overall specification of the mounting frame 2 is larger, it can meet the hanging requirements of the TV alone. At this time, the TV can be hung on the hanging part on the end of the mounting frame 2 with the help of the hanging ear 9. The hanging ear 9 is still installed at the wall hole position of the TV. In the actual operation process, the hanging ear 9 can be first installed at the wall hole of the TV through the screw structure. Then the TV is hung as a whole on the upper end of the mounting frame 2. In addition, in this embodiment, a corresponding inclination adjustment structure is also provided. The inclination adjustment structure adjusts the horizontal inclination of the mounting frame 2 by adjusting the angle between the mounting frame 2 and the support frame 3. Specifically, a slide slot hole 24 is provided on the mounting frame 2, and the upward end of the support frame 3 is slidably installed in the slide slot hole 24, so that relative movement can be generated between the mounting frame 2 and one end of the support frame 3. Two corresponding mounting seat structures 63 are respectively provided on the mounting frame 2 and the supporting frame 3. The mounting seat structure 63 on the mounting frame 2 is provided with a mounting block 64 rotatably connected thereto. The second screw member 61 in the inclination adjustment structure is rotatably mounted on the mounting block 64 on the mounting frame 2. A threaded socket 62 is provided on the mounting seat structure 63 on the supporting frame 3. The end of the second screw member 61 is threadedly mounted in the threaded socket 62. A handwheel structure is also provided on one end of the second screw member 61 corresponding to the threaded socket 62. By rotating the handwheel structure, one end of the supporting frame 3 can be driven to move in the slide slot hole 24 of the mounting frame 2, so that one end of the supporting frame 3 produces an effect of pushing and pulling the mounting frame 2, thereby adjusting the actual horizontal inclination of the mounting frame 2.

[0061] It should be noted 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 rate when in the folded state, in actual implementation, the mounting frame 2 includes an upper mounting frame 21 and a 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 unfolded, 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 to form a whole. Similarly, the support frame 3 can also be set as a two-part frame structure. When actually unfolded, a stable connection relationship can be formed between the two frames in the above manner, so that the connection position of the mounting frame 2 and the support frame 3 is set on the upper mounting frame 21 as much as possible, thereby improving the support center of gravity of the entire frame structure, thereby improving the stability of the entire frame structure during transportation. Combined with the design of the scheme in this embodiment, the slide slot hole 24 and the mounting seat structure 63 are both set on the upper mounting frame 21. As mentioned above, the mounting frame 2 and the supporting frame 3 are both composed of two frame structures. When actually folding, after releasing the connection and fixation of the connecting plate 71 and the latch structure 72, the mounting frame 2 and the supporting frame 3 can still maintain a compact folded state, thereby maximizing the convenience of the entire transport vehicle structure.

[0062] During the transportation of the television by the transport vehicle structure, the television structure is in a suspended state, and its downward end is relatively close to the ground. Since the external transportation environment may have undulating roads, in order to avoid the downward end of the television from contacting the ground and causing damage to the television body, a height adjustment structure is also provided on the transport vehicle structure, and the height adjustment structure is also specifically provided in two types for the above-mentioned two types of mounting frame 2 structures.

[0063] Specifically, the first height adjustment structure corresponds to the above-mentioned smaller hanging height, and the mounting frame 2 for hanging the TV is hung by the hanging bracket 4, such as Figure 1 and Figure 5As shown, the first height adjustment structure specifically includes an abutment portion 43, which is installed on the inner side of the hanging body 41 and has a movement stroke along the tilting direction of the mounting bracket 2. During the movement of the abutment portion 43, the convex portion 431 on its side wall and the oblong hole 411 on the hanging body 41 cooperate to guide. Specifically, the downward end of the abutment portion 43 abuts on the hanging portion, and the upward end thereof is connected to the end of the push screw 42 installed on the hanging body 41. When the push screw 42 rotates, it can cooperate with the gravity of the TV itself to drive the abutment portion 43 to move inside the hanging body 41, so that the hanging bracket 4 as a whole generates a certain movement in the vertical direction, thereby adjusting the ground clearance of the lower end of the TV.

[0064] In addition, the second height adjustment structure corresponds to Figure 6 The mounting frame 2 shown in the figure has the hanging portion at a relatively high position. If the above embodiment is still used, the hanging height of the TV is adjusted at a specific hanging position, because the entire hanging position has a relatively high vertical position height, so when performing the adjustment operation, it is definitely not convenient enough. Therefore, in this embodiment, the second height adjustment structure is arranged on the mobile chassis 1.

[0065] Specifically, the movable chassis 1 is configured as a double-layer structure, which includes an upper chassis 12 and a lower chassis 11. The upper chassis 12 and the lower chassis 11 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 mounted on the upper chassis 12, and the lower chassis 11 is connected to the second height adjustment structure, and the second height adjustment structure is used to adjust the opening size of the upper chassis 12 and the lower chassis 11 at the end of the second chassis corresponding to the opening size of the upper chassis 12 and the lower chassis 11 at the end of the second chassis. When the opening size of the upper chassis 12 and the lower chassis 11 at the end of the second chassis changes, the mounting frame 2 on the upper chassis 12 can be driven to move in the vertical direction, thereby adjusting the height of the hanging portion.

[0066] Among them, corresponding through holes 81 are opened on the upper base frame 12 and the lower base frame 11 in the up and down directions, and the second height adjustment structure includes a bracket member 82, a nut member 84 and a first adjusting screw 83. The bracket member 82 is installed in the upper base frame 12 corresponding to the through hole 81, and the bracket member 82 is provided with a first adjusting screw 83 rotatably connected thereto. The nut member 84 is rotatably installed on the inner side of the through hole 81 of the lower base frame 11, and the threaded portion of the first adjusting screw 83 cooperates with the nut member 84. The bracket member 82 and the nut member 84 are rotatably installed along two axes in the second direction respectively. When the first adjusting screw 83 is rotated by the adjusting hand wheel, the nut member 84 is installed on the lower chassis 11, and the position of the nut member 84 remains unchanged, and it rotates along the axis in the second direction. At the same time, the first adjusting screw 83 generates vertical movement during the rotation process, so that the lower chassis 11 and the upper chassis 12 are separated from each other at one end corresponding to the end of the second chassis, so as to adjust the opening position size of the upper chassis 12 and the lower chassis 11, and then adjust the ground clearance of the lower end of the TV. Thereby improving the transportation stability of the entire transport vehicle structure on the undulating ground, and effectively reducing the risk of damage to the TV. It can be imagined that the angle between the axis and the horizontal plane of the first adjusting screw 83 changes during the rotation around its axis. The two ends of the first adjusting screw 83 are arranged on the outer sides of the lower chassis 11 and the upper chassis 12. In order to avoid the first adjusting screw 83, the through hole 81 is set as an oblong hole 411 along the first direction. In order to facilitate the installation of the first adjusting screw 83 on the bracket member 82, the bracket member 82 in this embodiment is configured as two parts, a first bracket member 821 and a second bracket member 822. An arc groove is provided on the opposite ends of the two bracket members 82. The two arc grooves cooperate to form a mounting hole structure, so that the first adjusting screw 83 is installed in the middle of the mounting hole structure, thereby improving the convenience of installing the first adjusting screw 83.

[0067] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transport vehicle structure, characterized in that: include: A mobile chassis having a first chassis end and a second chassis end in a first direction; a mounting frame, one end of which is rotatably mounted above the first base frame along an axis extending in a second direction, wherein the first direction and the second direction are two mutually perpendicular directions in a horizontal plane; and A support frame, one end of which is rotatably mounted above the second bottom frame end along an axis extending in the second direction, and the other end of which is connected to the mounting frame via a detachable hinged mounting structure; The transport vehicle structure has a plurality of mutually switchable use states, wherein the plurality of use states include a first folding state, a second folding state and an unfolding state; In the first folded state, the mounting frame and the supporting frame are both stacked on top of the mobile base frame; In the second folding state, one of the mounting frame and the supporting frame is stacked on top of the mobile base frame, and the other of the mounting frame and the supporting frame is used to tow the mobile base frame; in the unfolding state, the mounting frame is flipped and stood up, and the other end of the supporting frame is supported on the mounting frame, so that the mounting frame is used to install the object to be transported.

2. The transport vehicle structure according to claim 1, characterized in that: A hanging portion and a connecting portion are formed on the mounting frame. In the unfolded state, the hanging portion and the connecting portion are arranged at intervals in the up-down direction, and the hanging portion is used for hanging the transported object. The transport vehicle structure also includes an inclination adjustment structure, which is used to adjust the distance between the connecting portion and the object to be transported along the first direction, so that the object to be transported can rotate with the hanging portion as the rotation center, and the size of the horizontal inclination angle formed between it and the horizontal plane can be adjusted.

3. The transport vehicle structure according to claim 2, characterized in that: The transport vehicle structure includes a hanging rack, and the hanging rack is hung on the hanging part of the mounting frame; The inclination adjustment structure is used to adjust the distance between the connecting portion and the hanger.

4. The transport vehicle structure according to claim 3, characterized in that: The tilt angle adjustment structure includes a push arm rotatably mounted on the connecting portion along an axis extending in the up-down direction, the push arm having an avoidance position and a push position, and corresponding to the avoidance position, the push arm avoids the setting of the hanger so that the hanger is attached to the connecting portion; Corresponding to the push position, the push arm is supported between the connecting portion and the hanging bracket.

5. The transport vehicle structure according to claim 3, characterized in that: The inclination adjustment structure includes a first push rod, one end of which is connected to the connecting part of the mounting frame, and has a first push rod section protruding from the mounting frame, the end of the first push rod section is used to abut against the hanging bracket, and the length of the first push rod section is adjustable.

6. The transport vehicle structure according to claim 5, characterized in that: The first push rod comprises a first screw member, a threaded hole is formed on the connecting portion, and the first screw member is threadedly installed in the threaded hole; The first push rod segment includes a portion of the first screw rod member protruding out of the threaded hole.

7. The transport vehicle structure according to claim 2, characterized in that: The distance between the connecting portion and the mounting frame in the second direction is adjustable.

8. The transport vehicle structure according to claim 2, characterized in that: The mounting frame comprises an upper mounting frame and a lower mounting frame, the upper mounting frame and the lower mounting frame can be relatively rotatably mounted along an axis extending in the second direction, and the hanging portion is formed on the upper mounting frame; The tilt angle adjustment structure comprises a second screw member, one end of which is rotatably mounted on the upper mounting frame; A threaded sleeve is provided on the support frame, and the end of the second screw rod is threadably installed in the threaded sleeve.

9. The transport vehicle structure according to claim 1, characterized in that: The transport vehicle structure comprises a hanger, a hanging body is arranged on the hanger, a hanging groove is formed on the hanging body, and the hanger is clamped on the hanging part through the hanging groove; The transport vehicle structure also includes a first height adjustment structure, which includes an abutment portion movably installed in the hanging body along the up and down directions, and the abutment portion is used to abut on the hanging portion, wherein the length of the abutment portion protruding outside the hanging slot is adjustable so that the height of the hanger can be adjusted.

10. The transport vehicle structure according to claim 9, characterized in that: The first height adjustment structure further includes a push screw, one end of which is rotatably mounted on the hanging body, and the other end of which is connected to the abutting portion.

11. The transport vehicle structure according to claim 1, characterized in that: A hanging portion is formed on the mounting frame; The transport vehicle structure further includes a second height adjustment structure, and the second height adjustment structure is used to adjust the position of the hanging portion in the up and down direction.

12. The transport vehicle structure according to claim 11, characterized in that: The mobile chassis includes 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 disposed between the upper base frame and the lower base frame so that at least the position of the mounting frame in the up-down direction can be adjusted.

13. The transport vehicle structure according to claim 12, characterized in that: The upper chassis and the lower chassis are rotatably connected along an axis extending in a second direction corresponding to an end portion of the first chassis; The second height adjustment structure is used to adjust the opening size of the upper chassis and the lower chassis corresponding to the end of the second chassis.

14. The transport vehicle structure according to claim 13, characterized in that: The second height adjustment structure further includes a third screw member, 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.

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