Light-load unpowered trailer

Abstract

The utility model discloses a light load type unpowered trailer which comprises a trailer frame and a bearing frame, a first rotary disc is installed on the trailer frame, the bearing frame is installed on the first rotary disc, and a second rotary disc and a front wheel frame installed on the second rotary disc are installed on the trailer frame. A rear wheel is mounted on the frame, and a front wheel is mounted on the front wheel frame; a mop is rotationally installed on the front wheel frame, a pedal mechanism used for stopping the bearing frame from rotating is installed on the frame, the pedal mechanism comprises a pedal, and the extending height of the pedal is aligned with the frame; the bearing frame is installed on the frame through the first rotary disc so that the angle of the bearing frame relative to the frame can be adjusted, the bearing frame needs to be stopped through the pedal mechanism in the transportation process, when adjustment is needed, the pedal mechanism unlocks the bearing frame by treading the pedal, the extending height of the pedal is aligned to the frame, and therefore adjustment is achieved. The height of the pedal is increased, so that friction caused by contact with the ground during treading is avoided, and the extension length of the pedal is shortened, so that collision caused by the outside is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage trailers, in particular to a light-loaded unpowered trailer. Background Art

[0002] In the transportation management of the airport, on the one hand, passengers need to be guided or transported to the aircraft to be boarded, and on the other hand, the luggage and other items of the passengers need to be transported to the aircraft for random transportation, or taken out of the aircraft to the luggage carousel for passengers to take away. In the existing transportation process, the luggage is mainly transported in batches by non-powered trailers, and the tractor head is used for towing and transportation.

[0003] Unpowered trailers are divided into heavy-loaded unpowered trailers and light-loaded unpowered trailers according to the load conditions. In existing light-loaded unpowered trailers, a load-bearing frame is rotatably installed on the frame, and a structure for stopping the load-bearing frame is installed on the frame. The load-bearing frame is extended a long distance from the frame and is close to the ground. It is easy to contact the ground and generate friction when pedaling. In addition, due to the long extension distance, it is easy to collide and be damaged. Utility Model Content

[0004] 1. Technical issues

[0005] The utility model aims to provide a light-loaded unpowered trailer, which solves the problem that the structure for stopping the load-bearing frame in the trailer has a long extension length and is close to the ground, which easily causes collision with ground obstacles and causes damage.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A light-loaded non-powered trailer comprises a frame and a load-bearing frame, wherein a first turntable is mounted on the frame, the load-bearing frame is mounted on the first turntable, a second turntable and a front wheel frame mounted on the second turntable are mounted on the frame; a rear wheel is mounted on the frame, and a front wheel is mounted on the front wheel frame; a mop is rotatably mounted on the front wheel frame, a pedal mechanism for stopping the rotation of the load-bearing frame is mounted on the frame, the pedal mechanism comprises a pedal, and an extended height of the pedal is aligned with the frame.

[0009] Preferably, the pedal mechanism includes a first rotating rod rotatably mounted on the frame, the pedals are respectively fixed at both ends of the first rotating rod, a first connecting plate is mounted on the first rotating rod, a latch is also slidably mounted on the frame, the lower end of the latch is rotatably connected to the first connecting plate; limit blocks are provided at intervals on the carrier frame, the upper end of the latch extends between the limit blocks; a first spring is sleeved on the latch, and one end of the first spring abuts against the frame.

[0010] Preferably, the pedal is in a "Z"-shaped structure, and the length of the pedal extending away from the frame is 10 cm-20 cm.

[0011] Preferably, a limiting member is provided on the front wheel frame, and a limiting hook is rotatably installed on the mop; when the mop rotates upward, the limiting hook is hooked and matched with the limiting member.

[0012] Preferably, the end portion of the limiting hook extending outward is located on the inner side of the end surface of the front wheel frame.

[0013] Preferably, the supporting frame includes a supporting frame and at least two supporting plates spaced apart on the supporting frame, a plurality of rollers evenly distributed along the width direction of the supporting frame are rotatably arranged between the two supporting plates; a supporting plate is laid on the supporting plate between two adjacent rows of rollers; and a fixed stop block located at one end of the supporting plate and a movable stop block located at the other end of the supporting plate are provided on the supporting frame.

[0014] Preferably, the structural dimensions of the roller are universal dimensions.

[0015] Preferably, a brake mechanism is provided on the front wheel frame, and the brake mechanism includes a second rotating rod rotatably mounted on the front wheel frame, and a brake support plate and a brake body mounted on the brake support plate are respectively mounted on both ends of the second rotating rod; a sliding rod extending toward one side of the mop is slidably provided on the front wheel frame, and a second connecting plate is fixed on the second rotating rod, and the sliding rod is rotatably connected to the second connecting plate; a fork plate is rotatably mounted on the front wheel frame, and the lower end of the fork plate is rotatably connected to the sliding rod, and a bearing is rotatably mounted on the upper end of the fork plate; when the mop rotates upward, it pushes the fork plate to rotate.

[0016] Preferably, a second spring is sleeved on the sliding rod, and one end of the second spring abuts against the front wheel frame.

[0017] Preferably, a tail bracket extending outward is provided at the rear end of the frame, and a tail hook assembly is installed at the end of the tail bracket.

[0018] (III) Beneficial effects

[0019] The carrier is mounted on the frame by the first rotating disk, and the angle of the carrier relative to the frame can be adjusted. During transportation, the carrier needs to be stopped by the pedal mechanism. When adjustment is required, the pedal mechanism is unlocked by stepping on the pedal, and the extended height of the pedal is aligned with the frame, thereby increasing the height of the pedal to avoid contact with the ground and friction when stepping on it, and shortening the extended length of the pedal to avoid collision with the outside.

[0020] At the same time, the front wheel frame is mounted on the vehicle frame through the second turntable, so that the angle of the front wheel frame can be adjusted during the entire trailer movement to achieve steering control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a three-dimensional structure from a first viewing angle of an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of a second perspective three-dimensional structure of an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a three-dimensional structure from a third viewing angle of an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of a three-dimensional structure from a fourth viewing angle of an embodiment of the utility model;

[0025] exist Figures 1 to 4 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0026] Frame 1, load-bearing frame 2, support frame 21, support plate 22, roller 23, load-bearing plate 24, fixed block 25, movable block 26, first turntable 3, second turntable 4, front wheel frame 5, rear wheel 6, front wheel 7, mop 8, pedal mechanism 9, pedal 91, first rotating rod 92, first connecting plate 93, latch 94, limit block 95, first spring 96, limit member 10, limit hook 11, brake mechanism 12, second rotating rod 121, brake support plate 122, brake body 123, sliding rod 124, second connecting plate 125, fork plate 126, bearing 127, second spring 128, tail bracket 13, tail hook assembly 14. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] See also Figure 1-Figure 4As shown, in an embodiment of the utility model, a light-loaded unpowered trailer is proposed, including a frame 1 and a load-bearing frame 2, wherein a first turntable 3 is installed on the frame 1, and the load-bearing frame 2 is installed on the first turntable 3, and a second turntable 4 and a front wheel frame 5 installed on the second turntable 4 are installed on the frame 1; and a rear wheel 6 is installed on the frame 1, and a front wheel 7 is installed on the front wheel frame 5, and the entire trailer is moved by the front wheel 7 and the rear wheel 6, and the angle of the load-bearing frame 2 relative to the frame 1 can be adjusted under the action of the first turntable 3, so as to facilitate the convenience of adjusting the luggage, and at the same time, the angle of the front wheel frame 5 can be adjusted relative to the frame 1 through the action of the second turntable 4, thereby enabling steering during the movement of the trailer.

[0029] At the same time, a mop 8 is rotatably mounted on the front wheel frame 5, and the trailer can be hung on the tractor through the mop 8, and multiple adjacent trailers can be connected. A pedal mechanism 9 for stopping the rotation of the carrier frame 2 is installed on the frame 1, and the pedal mechanism 9 includes a pedal 91. The extension height of the pedal 91 is aligned with the frame 1. The locking state of the carrier frame 2 is adjusted by the pedal mechanism 9, which is convenient for adjusting the angle of the carrier frame 2. After the extension height of the pedal 91 is increased, the thin pedal 91 is away from the ground to reduce external leakage, and is located on the inner side of the frame 1 to avoid being completely exposed close to the ground and being damaged by collision with external obstacles.

[0030] Specifically, the pedal mechanism 9 includes a first rotating rod 92 rotatably mounted on the frame 1, the pedal 91 is respectively fixed at both ends of the first rotating rod 92, a first connecting plate 93 is mounted on the first rotating rod 92, a latch 94 is also slidably mounted on the frame 1, the lower end of the latch 94 is rotatably connected to the first connecting plate 93, and a limit block 95 is provided on the support frame 2 at intervals, the upper end of the latch 94 extends between the limit blocks 95, and a first spring 96 is sleeved on the latch 94, one end of the first spring 96 abuts against the frame 1, and by stepping on the pedal 91, the first rotating rod 92 rotates with the first connecting plate 93 and pulls the latch 94 to move downward and disengage from the limit block 95, so that the support frame 2 rotates relative to the frame 1 under the action of the first rotating disk 3. After the adjustment is completed, the latch 94 is pulled back to the position by the action of the first spring 96 and inserted between the limit blocks 95 for limiting.

[0031] At the same time, the pedal 91 is in a "Z" shape, and the length of the pedal 91 extending away from the frame 1 is 10cm-15cm. By setting the pedal 91 in a Z-shaped structure, the height of the pedal 91 can be effectively increased and the length can be shortened, so that the thin pedal 91 is away from the ground to reduce external leakage, and is located on the inner side of the frame 1 to avoid being completely exposed close to the ground and being damaged by collision with external obstacles.

[0032] Specifically, the mop 8 needs to be limited after it rotates, and a limiting member 10 is provided on the front wheel frame 5, and a limiting hook 11 is rotatably installed on the mop 8; when the mop 8 rotates upward, the limiting hook 11 is hooked and cooperated with the limiting member 10; the mop 8 is limited by the limiting hook 11 hooking with the limiting member 10, and when unlocking is required, the limiting hook 11 is rotated to disengage from the limiting member 10 to unlock the rotatability of the mop 8.

[0033] At the same time, the end of the limiting hook 11 extending outward is located on the inner side of the end surface of the front wheel frame 5, so that the extension length of the limiting hook 11 will not extend out of the end surface of the front wheel frame 5, thereby avoiding external collision with the limiting hook 11.

[0034] Specifically, the carrier 2 can load luggage, and the carrier 2 includes a support frame 21 and at least two support plates 22 arranged at intervals on the support frame 21. A plurality of rollers 23 evenly distributed along the width direction of the carrier 2 are rotatably arranged between the two support plates 22. A support plate 24 is laid on the support plate 22 between two adjacent rows of rollers 23. The rollers 23 can facilitate the dragging of luggage, and the support plate 24 can support the luggage. Furthermore, a fixed stopper 25 located at one end of the support plate 24 and a movable stopper 26 located at the other end of the support plate 24 are provided on the carrier 2. The fixed stopper 25 and the movable stopper 26 are used to limit the luggage, and the movable stopper 26 can adjust the stop state, so as to facilitate the operation when the luggage needs to be unloaded.

[0035] Specifically, in order to make the roller 23 universal, the structural dimensions of the roller 23 are made universal, for example, 60 mm×440 mm×15 mm×3 mm, so that it can be universal on different trailers.

[0036] Specifically, after the trailer is moved into position, braking is required, and a brake mechanism 12 is provided on the front wheel frame 5, and the brake mechanism 12 includes a second rotating rod 121 rotatably mounted on the front wheel frame 5, and the two ends of the second rotating rod 121 are respectively mounted with a brake support plate 122 and a brake body 123 mounted on the brake support plate 122, and at the same time, a sliding rod 124 extending toward one side of the mop 8 is slidably provided on the front wheel frame 5, and a second connecting plate 125 is fixed on the second rotating rod 121, and the sliding rod 124 is rotatably connected to the second connecting plate 125; and a fork plate 126 is rotatably mounted on the front wheel frame 5, and the lower end of the fork plate 126 is rotatably connected to the sliding rod 124, and the upper end of the fork plate 126 is rotatably mounted with a bearing 127, and at the same time, when the mop 8 rotates upward, the fork plate 126 is pushed to rotate. After the trailer is moved into position, the mop 8 is rotated upward to push the fork plate 126 to rotate, and the traction sliding rod 124 moves forward to pull the second connecting plate 125 and the second rotating rod 121 to rotate, so that the brake body 123 presses and limits the front wheel 7 to achieve braking.

[0037] The bearing 127 is provided to reduce the sliding friction between the fork plate 126 and the mop 8 .

[0038] At the same time, a second spring 128 is sleeved on the sliding rod 124, and one end of the second spring 128 abuts against the front wheel frame 5. The second spring 128 can push the sliding rod 124 to slide backward and reset, so that the brake body 123 is separated from the front wheel 7 and contact braking.

[0039] When connecting multiple trailers, it is necessary to set a connecting structure at the rear end of the frame 1. Specifically, a tail bracket 13 extending outward is provided at the rear end of the frame 1, and a tail hook assembly 14 is installed at the end of the tail bracket 13. The tail bracket 13 is extended backward, and the tail hook assembly 14 cooperates with the mop 8 to achieve a hook connection between two adjacent trailers. The tail hook assembly 14 has a rotatable limiting structure to prevent automatic unlocking and improve traction stability.

[0040] It should also be noted that the existing technology can continue to be used in the parts that constitute the necessary structure of the trailer but are not mentioned in this embodiment.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A light-loaded unpowered trailer, characterized in that: It comprises a vehicle frame and a bearing frame, wherein a first rotating disk is mounted on the vehicle frame, the bearing frame is mounted on the first rotating disk, a second rotating disk and a front wheel frame mounted on the second rotating disk are mounted on the vehicle frame; The rear wheel is installed on the frame, and the front wheel is installed on the front wheel frame; A mop is rotatably mounted on the front wheel frame, and a pedal mechanism for stopping the rotation of the carrier frame is mounted on the frame. The pedal mechanism comprises a pedal, and the extended height of the pedal is aligned with the frame.

2. A light-loaded unpowered trailer according to claim 1, characterized in that: The pedal mechanism comprises a first rotating rod rotatably mounted on the frame, the pedals are respectively fixed at both ends of the first rotating rod, a first connecting plate is mounted on the first rotating rod, a latch is slidably mounted on the frame, and the lower end of the latch is rotatably connected to the first connecting plate; Limit blocks are arranged at intervals on the carrier, and the upper end of the latch extends between the limit blocks; A first spring is sleeved on the latch, and one end of the first spring abuts against the vehicle frame.

3. A light-loaded unpowered trailer according to claim 1, characterized in that: The pedal is in a "Z"-shaped structure, and the length of the pedal extending away from the frame is 10cm-20cm.

4. A light-loaded unpowered trailer according to claim 1, characterized in that: The front wheel frame is provided with a limiting piece, and the mop is rotatably mounted with a limiting hook; when the mop rotates upward, the limiting hook is hooked and matched with the limiting piece.

5. A light-loaded unpowered trailer according to claim 4, characterized in that: The end portion of the limiting hook extending outward is located on the inner side of the end surface of the front wheel frame.

6. A light-loaded unpowered trailer according to any one of claims 1 to 5, characterized in that: The carrier frame comprises a support frame and at least two support plates spaced apart on the support frame, and a plurality of rollers evenly distributed along the width direction of the carrier frame are rotatably arranged between the two support plates; A bearing plate is laid on the support plate between two adjacent rows of rollers; The carrier frame is provided with a fixed stopper located at one end of the carrier plate and a movable stopper located at the other end of the carrier plate.

7. A light-loaded unpowered trailer according to claim 6, characterized in that: The structural dimensions of the roller are universal dimensions.

8. A light-loaded unpowered trailer according to any one of claims 1 to 5, characterized in that: The front wheel frame is provided with a brake mechanism, which includes a second rotating rod rotatably mounted on the front wheel frame, and the two ends of the second rotating rod are respectively provided with a brake support plate and a brake body mounted on the brake support plate; A sliding rod extending toward one side of the mop is slidably provided on the front wheel frame, a second connecting plate is fixed on the second rotating rod, and the sliding rod is rotatably connected to the second connecting plate; A fork plate is rotatably mounted on the front wheel frame, the lower end of the fork plate is rotatably connected to the sliding rod, and a bearing is rotatably mounted on the upper end of the fork plate; When the mop rotates upward, the fork plate is pushed to rotate.

9. A light-loaded unpowered trailer according to claim 8, characterized in that: A second spring is sleeved on the sliding rod, and one end of the second spring abuts against the front wheel frame.

10. A light-loaded unpowered trailer according to any one of claims 1 to 5, characterized in that: The rear end of the frame is provided with a rear bracket extending outward, and a tail hook assembly is installed at the end of the rear bracket.

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