Unpowered trailer capable of improving maintainability and manufacturability

Abstract

The utility model discloses an unpowered trailer capable of improving maintainability and manufacturability, which comprises a frame main body, a rear wheel frame and a rotary disc are mounted on the frame main body, a front wheel frame is mounted on the rotary disc, a rear roller is mounted on the rear wheel frame, a front roller is mounted on the front wheel frame, a mop is rotatably mounted on the front wheel frame, and a handle is mounted on the mop. A baffle is detachably installed on the frame body, and a plurality of cylinders which are located on the two sides of the baffle and arranged in an array mode are detachably installed on the frame body. The baffle and the cylinder are designed to be of a detachable structure, the frame body, the baffle and the cylinder are sprayed with different colors during spraying, and the baffle and the cylinder are directly assembled on the frame body after spraying is completed, so that the process of shielding operation during spraying can be avoided, and the overall spraying efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage trailers, in particular to a non-powered trailer with improved maintainability and processability. 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] The trailer includes a frame body and structures such as baffles and cylinders welded and fixed on the frame body. After manufacturing, the frame body, baffles and cylinders need to be sprayed with different colors. In the current trailer structure, the frame body, baffles and cylinders need to be covered with a masking cloth respectively during spraying to avoid color bleeding, which also reduces the spraying efficiency. Utility Model Content

[0004] 1. Technical issues

[0005] The utility model aims to provide a non-powered trailer with improved maintainability and processability, so as to solve the problem that the existing trailer structure needs to shield the spray separately during spraying, which reduces the spraying efficiency.

[0006] (II) Technical solution

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

[0008] A non-powered trailer with improved maintainability and processability comprises a frame body, a rear wheel frame and a turntable are mounted on the frame body, a front wheel frame is mounted on the turntable, a rear roller is mounted on the rear wheel frame, a front roller is mounted on the front wheel frame, a mop is rotatably mounted on the front wheel frame, a baffle is detachably mounted on the frame body, and a plurality of cylinders located on both sides of the baffle and arranged in an array are detachably mounted on the frame body.

[0009] Preferably, the surfaces of the baffle and the cylinder have a first spray coating, the surface of the frame body has a second spray coating, and the color of the first spray coating is different from the color of the second spray coating.

[0010] Preferably, the frame body includes a load-bearing frame, on which is provided at least one placement rack evenly distributed along its length direction, support plates are respectively provided at both ends of the load-bearing frame, and a plurality of rollers evenly distributed along the width direction of the load-bearing frame are rotatably provided between adjacent placement racks and support plates and between two adjacent placement racks.

[0011] Preferably, the frame body is provided with a drainage structure located at the recessed portion, the closed load-bearing portion and the closed connection portion, and the drainage structure includes a plurality of drainage holes arranged in an array and penetrating downward.

[0012] Preferably, the drainage structure comprises a guide plate, a middle portion of the guide plate has a concave collecting portion, and the drainage holes are arranged in the collecting portion.

[0013] Preferably, the drainage structure comprises a guide plate, a middle portion of the guide plate has an upwardly convex guide portion, and the drainage holes are arranged around the guide portion.

[0014] Preferably, a brake mechanism is installed on the front wheel frame, and the brake mechanism includes a rotating rod rotatably installed on the front wheel frame, a brake support plate corresponding to the front roller is installed on the rotating rod, a brake body is installed on the brake support plate, and a brake connecting plate is installed on the rotating rod; a push rod is slidably installed on the front wheel frame, one end of the push rod is rotatably connected to the brake connecting plate, and a brake push plate is installed on the other end of the push rod; a cam block is installed on the mop, and when the mop rotates upward, the cam block pushes the brake push plate to move.

[0015] Preferably, the push rod is sleeved with a return spring abutting against the front wheel frame, and the return spring is used for pushing the push rod to return and move.

[0016] Preferably, the front wheel frame is provided with a through hole corresponding to the brake support plate.

[0017] Preferably, the turntable includes an outer ring and an inner ring rotatably mounted on the outer ring, the outer ring is provided with a plurality of threaded holes evenly distributed along the circumferential direction, and the inner ring is provided with a plurality of countersunk holes evenly distributed along the circumferential direction; it also includes a first fastener and a second fastener, the first fastener passes through the frame body and is locked on the threaded hole, the second fastener passes through the countersunk hole and is locked on the front wheel frame, and the insertion direction of the first fastener and the second fastener is the same.

[0018] (III) Beneficial effects

[0019] By designing the baffle and cylinder as a detachable structure, the frame body, baffle and cylinder are sprayed with different colors respectively during spraying, and the baffle and cylinder are directly assembled to the frame body after spraying. This can avoid the process of shielding operation during spraying, improve the overall spraying efficiency, and speed up the assembly efficiency of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of a three-dimensional structure schematic diagram of an embodiment of the utility model;

[0021] Figure 2 This is a bottom-up three-dimensional structural schematic diagram of an embodiment of the utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0023] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure at B in the middle;

[0024] Figure 5 for Figure 2 A schematic diagram of the partially enlarged structure at C in the middle;

[0025] Figure 6 This is a schematic diagram of the structure of the rotary disk in the embodiment of the utility model;

[0026] exist Figures 1 to 6 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0027] Frame body 1, load-bearing frame 101, placement frame 102, support plate 103, roller 104, rear wheel frame 2, turntable 3, outer ring 31, inner ring 32, threaded hole 33, countersunk hole 34, front wheel frame 4, through hole 40, rear roller 5, front roller 6, mop 7, baffle 8, cylinder 9, drainage structure 10, brake mechanism 11, rotating rod 111, brake support plate 112, brake body 113, brake connecting plate 114, push rod 115, brake push plate 116, cam block 117, return spring 118. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-Figure 6As shown, in the embodiment of the utility model, a non-powered trailer with improved maintainability and processability is proposed, including a frame body 1, the frame body 1 is formed by welding a steel structure, and has good bearing strength as a whole. A rear wheel frame 2 and a turntable 3 are installed on the frame body 1, a front wheel frame 4 is installed on the turntable 3, a rear roller 5 is installed on the rear wheel frame 2, a front roller 6 is installed on the front wheel frame 4, and a mop 7 is rotatably installed on the front wheel frame 4, and multiple trailers are connected or the trailer is directly hung to the traction head vehicle through the mop 7, and the luggage is placed on the frame body 1 for transportation. When the entire trailer moves, it moves through the front roller 6 and the rear roller 5, and the front wheel frame 4 is installed on the frame body 1 through the turntable 3, which is convenient for angle adjustment when turning and changing direction. The turntable 3 allows the front roller 6 to have a certain angle adjustment range relative to the frame body 1, so as to achieve angle adjustment during transportation.

[0030] At the same time, because the baffle 8 and the cylinder 9 are welded to the frame body in the prior art, when spraying, due to the different colors from the frame body, it is necessary to distinguish and block each other for staggered spraying, which results in cumbersome procedures, low efficiency, and easy color mixing. In order to solve the above technical problems, a baffle 8 is detachably mounted on the frame body 1, and a plurality of cylinders 9 are detachably mounted on the frame body 1 and are located on both sides of the baffle 8 and arranged in an array. Generally, the colors of the baffle 8 and the cylinder 9 are red, while the frame body 1 is blue. The baffle 8 and the cylinder 9 are designed as detachable structures. After processing, the cylinder 9, the baffle 8 and the frame body 1 are sprayed separately, and then assembled. Through the above detachable structure improvement, each color is sprayed separately without blocking, which can not only ensure the uniformity of spraying but also avoid the occurrence of color mixing, but also simplify the process flow, improve assembly efficiency, and make later maintenance and replacement more convenient.

[0031] All parts of the frame body 1 with different colors can be designed as detachable structures.

[0032] Specifically, the surfaces of the baffle 8 and the cylinder 9 have a first spray layer, and the surface of the frame body 1 has a second spray layer. The color of the first spray layer is different from the color of the second spray layer. The color of the first spray layer is red, and the color of the second spray layer is blue. Of course, other colors can also be sprayed.

[0033] By spraying the surface color of the baffle plate 8 and the cylinder 9 in red, it can serve as a reminder during use, making it easier for workers to operate quickly.

[0034] Specifically, the frame body 1 is a welded structure as a whole, and the frame body 1 includes a load-bearing frame 101, and the load-bearing frame 101 is provided with at least one placement frame 102 evenly distributed along its length direction, and the two ends of the load-bearing frame 101 are respectively provided with support plates 103, and the placement frame 102 is composed of angle steel, steel plate, stopper, etc., and is the main part for placing luggage, and has a concave structure to limit the luggage, and can also be provided with structures such as sliding limit pins and rotating pressure blocks to achieve the limit of the luggage, and the support plate 103 can be directly welded to the load-bearing frame 101 using angle steel, and the load-bearing frame 101 is a frame structure, which provides bearing strength for the overall structure. Multiple rollers 104 evenly distributed along the width direction of the load-bearing frame 101 are rotatably provided between the adjacent placement frames 102 and the support plates 103 and between two adjacent placement frames 102, and the rollers 104 slide when loading luggage, thereby reducing the labor intensity of the staff.

[0035] Specifically, the number of the placement racks 102 can be changed according to the size of the trailer. For example, in the present embodiment, the number of the placement racks 102 is 3, and the corresponding rollers 104 are arranged in 4 rows. However, the specific number is not completely limited and can be optimized according to the luggage loading capacity.

[0036] Since the frame body 1 is formed by welding a steel structure, the entire frame body 1 has recessed parts, closed load-bearing parts and closed connecting parts, etc., and trailers are usually used outdoors, and water may accumulate in the above-mentioned parts after encountering rain, so it is necessary to drain the accumulated water in real time.

[0037] Specifically, the frame body 1 is provided with a drainage structure 10 located at the recessed portion, the closed load-bearing portion and the closed connection portion. The drainage structure 10 includes a plurality of drainage holes arranged in an array and penetrating downward. The drainage holes are directly provided on the bottom surface of the recessed portion, the closed load-bearing portion and the closed connection portion.

[0038] The above-mentioned arrangement of drainage holes may still not be able to drain the accumulated water quickly. Therefore, in another embodiment, the drainage structure 10 includes a guide plate, the middle part of the guide plate has a concave collecting portion, and the drainage holes are arranged in the collecting portion, wherein the guide plate is the bottom surface structure of the recessed portion, the closed bearing portion, and the closed connecting portion. The accumulated water is drained by arranging the concave collecting portion, and the drainage holes are arranged in the collecting portion to speed up the drainage.

[0039] At the same time, in another embodiment, a convex guide portion may be provided in the middle of the guide plate, and the drainage holes are arranged around the guide portion. The accumulated water flows rapidly around under the action of the guide portion, accelerating the outflow from the drainage holes.

[0040] When the trailer is parked, braking is required, so a brake mechanism 11 is installed on the front wheel frame 4, and the brake mechanism 11 includes a rotating rod 111 rotatably installed on the front wheel frame 4, and a brake support plate 112 corresponding to the front roller 6 is installed on the rotating rod 111, and a brake body 113 is installed on the brake support plate 112, and a brake connecting plate 114 is installed on the rotating rod 111. At the same time, a pushing rod 115 is slidably installed on the front wheel frame 4, and one end of the pushing rod 115 is rotatably connected to the brake connecting plate 114, and a brake push plate 116 is installed on the other end of the pushing rod 115. After the brake push plate 116 moves with the pushing rod 115, the brake connecting plate 114 and the rotating rod 111 are pulled to rotate, so that the brake body 113 on the brake support plate 112 abuts against the front roller 6 to form a friction force, thereby braking the front roller 6.

[0041] At the same time, in order to link the movement of the brake push plate 116 with the rotation of the mop 7, a cam block 117 is installed on the mop 7. When the mop 7 rotates upward, the cam block 117 pushes the brake push plate 116 to move. When the mop 7 rotates with the cam block 117, the convex part of the cam block 117 is pressed against the brake push plate 116 to push it. When the mop 7 rotates downward to be hung on the tractor, the brake push plate 116 is not subjected to the pushing force.

[0042] In order to accelerate the resetting of the push rod 115, allow the brake body 113 to rotate in the opposite direction and away from the front roller 6, and unlock the braking state, a return spring 118 is sleeved on the push rod 115 and abuts against the front wheel frame 4. The return spring 118 is used to push the push rod 115 to return and move. In the braking state, the return spring 118 is compressed, and in the unlocking state, the return spring 118 can accelerate the resetting movement of the push rod 115 when it is restored.

[0043] Since the brake support plate 112 and the brake body 113 are located inside the front wheel frame 4 during installation, they will be blocked by the front end of the front wheel frame 4 during assembly. In order to avoid installation from the bottom during assembly, a through hole 40 corresponding to the brake support plate 112 is opened on the front wheel frame 4. The through hole 40 is a waist-shaped structure. During installation, the brake body 113 and the brake support plate 112 are installed by inserting a tool through the through hole 40.

[0044] Specifically, the rotating disk 3 is used to install the front wheel frame 4 and the frame body 1. In order to realize the installation from the top of the frame body 1, the rotating disk 3 includes an outer ring 31 and an inner ring 32 rotatably mounted on the outer ring 31. The outer ring 31 is provided with a plurality of threaded holes 33 evenly distributed along the circumferential direction, and the inner ring 32 is provided with a plurality of countersunk holes 34 evenly distributed along the circumferential direction. The rotating disk 3 also includes a first fastener and a second fastener. The first fastener passes through the frame body 1 and is locked on the threaded hole 33. The second fastener passes through the countersunk hole 34 and is locked on the front wheel frame 4. The first fastener and the second fastener have the same insertion direction. The front wheel frame 4 is also provided with a connecting flange to lock the second fastener, and the connecting flange is fixed on the frame body 1. By arranging the threaded hole 33 and the countersunk hole 34 on the same side, the first fastener and the second fastener are installed by being inserted downward from the top of the frame body 1, without having to go under the frame body 1 to operate. It can improve assembly efficiency and avoid the workload of operators.

[0045] It should also be noted that the present embodiment mainly describes the improved technical solution, and other specific parts that need to be constructed in the trailer structure and are not described can be directly applied using existing technologies.

[0046] 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.

[0047] 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.

[0048] 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 non-powered trailer with improved maintainability and processability, comprising a frame body, a rear wheel frame and a turntable are mounted on the frame body, a front wheel frame is mounted on the turntable, a rear roller is mounted on the rear wheel frame, a front roller is mounted on the front wheel frame, and a mop is rotatably mounted on the front wheel frame, characterized in that: A baffle is detachably mounted on the frame body, and a plurality of columns located on both sides of the baffle and arranged in an array are detachably mounted on the frame body.

2. The unpowered trailer with improved maintainability and processability according to claim 1, characterized in that: The surfaces of the baffle and the cylinder have a first spray coating, the surface of the frame body has a second spray coating, and the color of the first spray coating is different from the color of the second spray coating.

3. The unpowered trailer with improved maintainability and processability according to claim 2, characterized in that: The frame body includes a load-bearing frame, on which is provided at least one placement rack evenly distributed along its length direction, support plates are respectively provided at both ends of the load-bearing frame, and a plurality of rollers evenly distributed along the width direction of the load-bearing frame are rotatably provided between adjacent placement racks and support plates and between two adjacent placement racks.

4. The unpowered trailer with improved maintainability and processability according to any one of claims 1 to 3, characterized in that: The frame body is provided with a drainage structure located at the recessed portion, the closed bearing portion and the closed connecting portion, and the drainage structure includes a plurality of drainage holes arranged in an array and penetrating downward.

5. The unpowered trailer with improved maintainability and processability according to claim 4, characterized in that: The drainage structure comprises a guide plate, a middle portion of the guide plate is provided with a concave collecting portion, and the drainage holes are arranged in the collecting portion.

6. The unpowered trailer with improved maintainability and processability according to claim 4, characterized in that: The drainage structure comprises a guide plate, the middle part of the guide plate is provided with an upwardly convex guide part, and the drainage holes are arranged around the guide part.

7. The unpowered trailer with improved maintainability and processability according to any one of claims 1 to 3, characterized in that: The front wheel frame is provided with a brake mechanism, the brake mechanism comprising a rotating rod rotatably mounted on the front wheel frame, a brake support plate corresponding to the front roller is mounted on the rotating rod, a brake body is mounted on the brake support plate, and a brake connecting plate is mounted on the rotating rod; A push rod is slidably mounted on the front wheel frame, one end of the push rod is rotatably connected to the brake connecting plate, and the other end of the push rod is mounted with a brake push plate; A cam block is installed on the mop, and when the mop rotates upward, the cam block pushes the brake push plate to move.

8. The unpowered trailer with improved maintainability and processability according to claim 7, characterized in that: The push rod is sleeved with a return spring abutting against the front wheel frame, and the return spring is used for pushing the push rod to return and move.

9. The unpowered trailer with improved maintainability and processability according to claim 7, characterized in that: The front wheel frame is provided with a through hole corresponding to the brake support plate.

10. The unpowered trailer with improved maintainability and processability according to any one of claims 1 to 3, characterized in that: The rotary disk comprises an outer ring and an inner ring rotatably mounted on the outer ring, the outer ring is provided with a plurality of threaded holes evenly distributed along the circumferential direction, and the inner ring is provided with a plurality of countersunk holes evenly distributed along the circumferential direction; It also includes a first fastener and a second fastener. The first fastener passes through the frame body and is locked on the threaded hole. The second fastener passes through the countersunk hole and is locked on the front wheel frame. The first fastener and the second fastener have the same insertion direction.

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