Safe improved unpowered trailer

Abstract

The utility model relates to the technical field of unpowered trailers, in particular to a safe improved unpowered trailer which comprises a trailer body, and the trailer body comprises a frame and a baffle assembly arranged on the surface of the frame and located in the middle of the side edge. The baffle assembly comprises a dragging rod, a stabilizing structure, a baffle arranged on the dragging rod in a sleeving mode and a first spring. The stabilizing structure is fixedly arranged on the frame, a through hole is formed in the stabilizing structure, the baffle is fixedly arranged on the dragging rod, the stabilizing structure and the frame are fixedly connected to form a limiting groove, and the dragging rod rotates and moves in the through hole to drive the baffle to be clamped in the limiting groove or be separated from the limiting groove; one end of the first spring is fixedly connected with the baffle, and the other end is fixedly connected with the stabilizing structure. According to the safe improved unpowered trailer, the safety of the trailer can be improved, and the service life of the baffle can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of unpowered trailers, in particular to a safety-improved unpowered trailer. Background Art

[0002] In the transportation management of the airport, the luggage of passengers is mainly carried by non-powered trailers, which are towed and transported by tractor locomotives.

[0003] As the scale of airports continues to grow and the time of airport operation increases, the number of unpowered equipment in airports is increasing, which has a great impact on airport management. In the design of existing unpowered trailers, due to the small amount of previous use, a relatively primitive steel structure design is often used. However, with the increasing number of unpowered trailers configured at airports, the increase in usage time and the increase in usage intensity, the existing trailers cannot meet the actual needs in terms of equipment reliability and safety of use.

[0004] At present, during the use of existing trailers, as the trailers are used for a long time, the safety of the trailers decreases, and the fenders on the trailers may be damaged due to rust, collision, etc., resulting in a short service life and low safety. Summary of the invention

[0005] In order to overcome the above-mentioned technical problems existing in the prior art, an embodiment of the present invention provides a safety-improved non-powered trailer, aiming to improve the safety of the trailer and extend the service life of the baffle on the trailer.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Preferably, the safety-improved non-powered trailer comprises a trailer body, the trailer body comprises a frame, and further comprises a baffle assembly disposed on the surface of the frame in the middle of the side edge;

[0008] The baffle assembly includes a towing rod, a stabilizing structure, a baffle sleeved on the towing rod, and a first spring, wherein the stabilizing structure is fixedly arranged on the vehicle frame, a through hole is arranged on the stabilizing structure, and the towing rod is arranged through the through hole;

[0009] The stabilizing structure includes a first substructure fixedly connected to the frame, a second substructure fixedly connected to the first substructure, and a third substructure arranged corresponding to the first substructure, the baffle is fixedly arranged on the towing rod, the second substructure is fixedly connected to the frame to form a limiting groove, and the towing rod rotates and moves in the through hole to drive the baffle to be clamped in the limiting groove or to be separated from the limiting groove;

[0010] A side of the baffle away from the second substructure is connected to one end of the first spring, the other end of the first spring is connected to the third substructure, and the third substructure is fixedly connected to the vehicle frame.

[0011] Preferably, the first substructure and the third substructure are both provided with a plurality of welding surfaces, and the first substructure and the third substructure are both fixedly connected to the vehicle frame via at least two welding surfaces.

[0012] Preferably, the second substructure includes a supporting portion and a protrusion arranged on the top of the supporting portion, the protrusion is arranged on the side of the supporting portion close to the baffle, one end of the supporting portion abuts against the first partition of the frame, and the end of the supporting portion away from the first partition abuts against the second partition of the frame, the bottom of the supporting portion is fixedly connected to the frame, and the side of the supporting portion away from the baffle is fixedly connected to the first substructure, and the protrusion, the supporting portion and the first partition enclose the limiting groove.

[0013] Preferably, a groove matching the protruding portion is formed on the top of the supporting portion, and the protruding portion is fixedly installed in the groove.

[0014] Preferably, the supporting portion includes a transverse abutting portion and a longitudinal abutting portion, one side of the transverse abutting portion is fixedly connected to the first partition, the transverse abutting portion is arranged between the first substructure and the longitudinal abutting portion, and is fixedly connected to the first substructure and the longitudinal abutting portion, the longitudinal abutting portion abuts against the first partition and the second partition respectively, and the bottom of the longitudinal abutting portion is fixedly connected to the frame.

[0015] Preferably, the lateral abutment portion is rectangular or triangular.

[0016] Preferably, the safety-improved non-powered trailer further comprises a traction head connected to one end of the trailer body, the traction head comprises a fork assembly, the fork assembly is connected to the bottom of the trailer body, the fork assembly comprises a cross bar, a second spring and a first movable locking assembly, one end of the cross bar is connected to the frame, and the other end is connected to the traction head, the second spring is sleeved on the cross bar, one end of the second spring abuts against the first movable locking assembly, and the other end is connected to the frame;

[0017] The first movable locking assembly includes a first nut and a second nut. A first thread is arranged on the cross bar in an area corresponding to the travel range of the second spring. The first nut and the second nut are both arranged on the cross bar through the first thread, and the first nut and the second nut fit tightly.

[0018] Preferably, the safety-improved non-powered trailer further comprises a pedal assembly arranged at the bottom of the trailer body, the pedal assembly comprises a horizontally arranged support rod, a transmission component is arranged in the middle of the support rod, the transmission component is connected to the bottom of a vertically arranged support shaft, the support shaft is sequentially sleeved with a second movable locking assembly, a third spring and a support sleeve from top to bottom, and the top of the support shaft abuts against the trailer body;

[0019] The second movable locking component is a third nut, a second thread is arranged in an area on the support shaft corresponding to the third spring travel, the third nut moves up and down on the support shaft through the second thread, and the support sleeve is fixedly arranged at the bottom of the support shaft.

[0020] Through the technical solution provided by the present invention, the present invention has at least the following technical effects:

[0021] The utility model provides a safety improved non-powered trailer, wherein a baffle assembly is provided with a first substructure, a second substructure and a third substructure, and the first substructure, the second substructure and the third substructure are all fixedly connected to the vehicle frame; when the baffle assembly is in use, the first substructure, the second substructure and the third substructure can all withstand the pressure transmitted to the baffle assembly by the cargo on the trailer, thereby enhancing the force bearing capacity of the baffle assembly.

[0022] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementation methods, they are used to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention.

[0024] In the attached picture:

[0025] Figure 1 It is a structural schematic diagram of a safety-improved unpowered trailer proposed in one embodiment of the present application;

[0026] Figure 2 It is a schematic diagram of a top view of a baffle assembly in a safety-improved non-powered trailer proposed in one embodiment of the present application;

[0027] Figure 3 It is a structural schematic diagram of a baffle assembly in a safety-improved non-powered trailer proposed in one embodiment of the present application;

[0028] Figure 4 It is a structural schematic diagram of a fork assembly in a safety-improved unpowered trailer proposed in one embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of a pedal assembly in a safety-improved unpowered trailer proposed in one embodiment of the present application.

[0030] Description of Reference Numerals

[0031] 1. Frame; 11. First partition; 12. Second partition; 2. Baffle assembly; 21. Drag rod; 22. Baffle; 221. First mounting hole; 23. First spring; 24. Stabilizing structure; 241. First substructure; 242. Second substructure; 2421. Transverse abutment; 2422. Protrusion; 2423. Longitudinal abutment; 2424. Groove; 243. Third substructure; 3. Towing head; 31. Fork assembly; 311. Crossbar; 312. Second spring; 313. First movable locking assembly; 3131. First nut; 3132. Second nut; 4. Pedal assembly; 41. Support rod; 42. Support shaft; 43. Third spring; 44. Third nut; 45. Support sleeve; 46. Transmission component. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Embodiment 1

[0034] The present application embodiment provides a safety-improved unpowered trailer, such as Figure 1 As shown, the unpowered trailer includes a trailer body, which includes a frame 1. A baffle assembly 2 is provided at the middle of the side of the frame 1 surface. The baffle assembly 2 is used to fix the cargo on the trailer to prevent the cargo on the trailer from falling when the trailer is moving.

[0035] To expand on this, Figure 2 and Figure 3 As shown, the baffle assembly 2 includes a drag rod 21, a stabilizing structure 24, a baffle 22 sleeved on the drag rod 21, and a first spring 23; a first mounting hole 221 is opened at one end of the baffle 22, and a second mounting hole is opened on the drag rod 21 at a position corresponding to the first mounting hole 221 on the baffle 22, and the baffle 22 and the drag rod 21 are fixedly connected by bolts passing through the first mounting hole 221 and the second mounting hole.

[0036] The baffle assembly 2 is fixedly arranged on the frame 1 through a stabilizing structure 24. The stabilizing structure 24 includes a first substructure 241, a second substructure 242 and a third substructure 243. The first substructure 241 and the third substructure 243 both have multiple welding surfaces. The first substructure 241 and the third substructure 243 are both welded and fixed to the frame 1 through at least two welding surfaces. For example, a partition of the frame 1 is arranged on the left side of the first substructure 241, and the left side of the first substructure 241 is welded to the partition. Another partition of the frame 1 is arranged on the right side of the third substructure 243, and the right side of the third substructure 243 is welded to the partition. The bottom surfaces of the first substructure and the second substructure are both welded to the frame, and the first substructure 241 and the third substructure 243 are welded to the frame 1 correspondingly. Through holes are opened on the first substructure 241, the second substructure 242 and the third substructure 243, and the towing rod 21 passes through the through holes and rotates and moves in the through holes, thereby driving the baffle 22 to rotate and move.

[0037] The second substructure 242 includes a supporting portion and a protrusion 2422, one end of the supporting portion abuts against the first partition 11 on the frame 1, and the end of the supporting portion away from the first partition 11 abuts against the second partition 12 of the frame 1, the bottom of the supporting portion is welded to the frame 1, and the top of the supporting portion is provided with a groove 2424 matching the protrusion 2422, the protrusion 2422 is welded in the groove 2424, and the protrusion 2422 is located on a side of the supporting portion close to the baffle 22, and the side of the supporting portion away from the protrusion 2422 is welded to the first substructure 241, and the protrusion 2422, the supporting portion and the first partition 11 enclose a limiting groove.

[0038] The first spring 23 is sleeved on the drag rod 21, one end of the first spring 23 is welded and fixed to the third substructure 243, and the other end is welded and fixed to one side of the baffle 22. When the drag rod 21 moves horizontally along the length direction of the rod in the through hole, the first spring 23 is driven to telescopically move along the length direction of the drag rod 21, and at the same time drives the baffle 22 to move into the limiting groove or the baffle 22 moves out of the limiting groove.

[0039] In the embodiment of the present application, the supporting portion of the second substructure 242 includes a transverse abutment portion 2421 and a longitudinal abutment portion 2423, the transverse abutment portion 2421 is located between the first substructure 241 and the longitudinal abutment portion 2423, and one end of the transverse abutment portion 2421 is welded and fixed to the first substructure 241, and one end of the transverse abutment portion 2421 away from the first substructure 241 is welded and fixed to the longitudinal abutment portion 2423, and one side of the transverse abutment portion 2421 is welded to the first partition of the frame 1, and the shape of the transverse abutment portion 2421 can be adjusted in time according to the structure of the trailer frame 1 , which can be set to a triangle or a rectangle; the bottom of the longitudinal abutment portion 2423 is welded to the frame 1, and the longitudinal abutment portion 2423 is respectively abutted and fixed to the first baffle 11 and the second baffle 12, and the top of the longitudinal abutment portion 2423 is provided with a groove 2424 matching the protrusion 2422, the protrusion 2422 is welded in the groove 2424, and the protrusion 2422 is arranged on the side of the longitudinal abutment portion 2423 close to the baffle 22, the protrusion 2422, the first baffle 11 and the longitudinal abutment portion 2423 enclose a limit groove into which the baffle 22 can be inserted or disengaged.

[0040] The improved safety non-powered trailer provided in the embodiment of the present application, when the trailer is loaded with cargo, the towing rod 21 is pulled, so that the towing rod 21 moves in the through holes of the first substructure 241, the second substructure 242 and the third substructure 243, at this time, the first spring 23 is correspondingly compressed or stretched, and the baffle 22 on the towing rod 21 also moves until the baffle 22 is stuck in the limit groove, and the pulling of the towing rod 21 stops. The baffle 22 fixes the cargo on the trailer. At this time, the baffle 22 and the towing rod 21 will be subjected to the pressure transmitted by the cargo, and the first substructure 241, the second substructure 242 and the third substructure 243 will bear the pressure together, sharing the pressure on the baffle 22 and the towing rod 21, thereby greatly improving the force-bearing capacity of the baffle assembly 2, so that the baffle assembly 2 can better fix the cargo, improve the safety of the trailer, and further extend the service life of the baffle 22.

[0041] In the embodiment of the present application, the trailer further comprises a traction head 3 connected to one end of the trailer body, and the traction head 3 comprises a fork assembly 31, such as Figure 4 As shown, the plug-in assembly is connected to the bottom of the trailer body, the fork assembly 31 includes a cross bar 311, a second spring 312 and a first movable locking assembly 313, one end of the cross bar 311 is fixedly connected to the frame 1 by bolts, and the other end is fixedly connected to the traction head 3 by bolts, the second spring 312 is sleeved on the cross bar 311, one end of the second spring 312 is fixedly connected to the frame 1, and the other end is connected to the first movable locking assembly 313.

[0042] Furthermore, the first movable locking assembly 313 includes a first nut 3131 and a second nut 3132, and a first thread is set in an area on the cross bar 311 corresponding to the travel range of the second spring 312. The first nut 3131 and the second nut 3132 are both threadedly connected to the cross bar 311 through the first thread, and the first nut 3131 and the second nut 3132 move within the area of ​​the first thread, and the first nut 3131 and the second nut 3132 are tightly fitted, and the end of the second spring 312 away from the frame 1 is connected to the first nut 3131.

[0043] In the safety improved non-powered trailer provided by the embodiment of the present application, when the spring of the fork assembly 31 has been used for a long time, the elastic force of the spring decays, and the position of the first nut 3131 is adjusted to shorten the travel range of the spring, and then the position of the second nut 3132 is adjusted so that the first nut 3131 and the second nut 3132 fit closely, and the second nut 3132 supports and fixes the first nut 3131 to prevent the first nut 3131 from rotating, thereby adjusting the elastic force of the spring so that the spring has sufficient elastic force. In this way, the elastic force of the fork assembly 31 can be adjusted to ensure reliable resetting of the fork assembly 31, and the first nut 3131 and the second nut 3132 occupy little space, which can save space while ensuring that the first nut 3131 is fixed.

[0044] In the embodiments of the present application, Figure 5 As shown, the trailer also includes a pedal assembly 4 arranged at the bottom of the trailer body, the pedal assembly 4 includes a horizontally arranged support rod 41, a transmission component 46 is arranged on the support rod 41, one end of the transmission component 46 is provided with a mounting hole, the support rod 41 passes through the mounting hole and is fixedly connected to the transmission component 46, and the transmission component 46 is located in the middle of the support rod 41, one end of the transmission component 46 away from the support rod 41 is fixedly connected to the bottom of the vertically arranged support shaft 42 through an axle pin, the top of the support shaft 42 is fixedly abutted against the trailer body, and the support shaft A third nut 44, a third spring 43 and a support sleeve 45 are sequentially sleeved on the support shaft 42. The support sleeve 45 is located at the bottom of the support shaft 42 and is welded and fixed to the frame body. The support sleeve 45 is provided with an accommodating space, which can accommodate part of the third spring 43. One end of the third spring 43 abuts against the bottom of the support sleeve 45, and the other end is fixedly connected to the third nut 44. A second thread is arranged in an area on the support shaft 42 corresponding to the travel range of the third spring 43, and the third nut 44 moves up and down on the support shaft 42 through the second thread.

[0045] The improved safety non-powered trailer provided in the embodiment of the present application has pedals fixedly welded at both ends of the support rod 41 of the pedal assembly 4. When the pedal is stepped on, the support rod 41 rotates, driving the transmission component 46 to rotate, further driving the support shaft 42 to move up and down, and the third spring 43 on the support shaft 42 is compressed or stretched along the length direction of the support shaft 42. After the pedal assembly 4 has been used for a long time, the elastic force of the third spring 43 decays, and there is no need to replace the spring assembly. A second thread is provided in the travel range of the third spring 43 on the support shaft 42, and a third nut 44 is fixedly connected to the end of the third spring 43 away from the support sleeve 45. The position of the third nut 44 is directly adjusted to shorten the travel range of the third spring 43, so that the third spring 43 maintains sufficient elastic force, thereby allowing the pedal assembly 4 to continue to achieve the established function.

[0046] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical scheme of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0048] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0049] It should also be noted that, in this article, the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application 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 application. In addition, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. Without more restrictions, an element defined by the phrase "comprising a ..." does not exclude the existence of other identical elements in the process, method, article or terminal device comprising the element.

[0050] The technical solution provided by the present application is described in detail above. The principle and implementation method of the present application are described in this article using specific examples. The description of the above embodiments is only used to help understand the present application, and the content of this specification should not be understood as limiting the present application. At the same time, for those of ordinary skill in the art, according to the present application, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present application.

Claims

1. A safety-improved unpowered trailer, comprising a trailer body, wherein the trailer body comprises a frame (1), characterized in that: The safety-improved non-powered trailer further comprises a baffle assembly (2) arranged on the surface of the frame (1) in the middle of the side edge; The baffle assembly (2) comprises a towing rod (21), a stabilizing structure (24), a baffle (22) sleeved on the towing rod (21), and a first spring (23); the stabilizing structure (24) is fixedly arranged on the vehicle frame (1); a through hole is arranged on the stabilizing structure (24); and the towing rod (21) passes through the through hole; The stabilizing structure (24) comprises a first substructure (241) fixedly connected to the vehicle frame (1), a second substructure (242) fixedly connected to the first substructure (241), and a third substructure (243) arranged corresponding to the first substructure (241); the baffle (22) is fixedly arranged on the towing rod (21); the second substructure (242) is fixedly connected to the vehicle frame (1) to form a limiting groove; the towing rod (21) rotates and moves in the through hole to drive the baffle (22) to be fixed in the limiting groove or to be separated from the limiting groove; A side of the baffle (22) away from the second substructure (242) is connected to one end of the first spring (23), the other end of the first spring (23) is connected to the third substructure (243), and the third substructure (243) is fixedly connected to the vehicle frame (1).

2. The safety-improved non-powered trailer according to claim 1, characterized in that: The first substructure (241) and the third substructure (243) are both provided with a plurality of welding surfaces, and the first substructure (241) and the third substructure (243) are both fixedly connected to the vehicle frame (1) via at least two welding surfaces.

3. The safety-improved non-powered trailer according to claim 1, characterized in that: The second substructure (242) comprises a support portion and a protrusion (2422) arranged on the top of the support portion, the protrusion (2422) being arranged on a side of the support portion close to the baffle (22), one end of the support portion being in contact with the first baffle (11) of the frame (1), and the end of the support portion away from the first baffle (11) being in contact with the second baffle (12) of the frame (1), the bottom of the support portion being fixedly connected to the frame (1), and the side of the support portion away from the baffle (22) being fixedly connected to the first substructure (241), and the protrusion (2422), the support portion and the first baffle (11) enclose the limiting groove.

4. The safety-improved non-powered trailer according to claim 3, characterized in that: The top of the support portion is provided with a groove (2424) matching the protruding portion (2422), and the protruding portion (2422) is fixedly installed in the groove (2424).

5. The safety-improved non-powered trailer according to claim 3, characterized in that: The support portion comprises a transverse abutment portion (2421) and a longitudinal abutment portion (2423); one side of the transverse abutment portion (2421) is fixedly connected to the first baffle (11); the transverse abutment portion (2421) is arranged between the first substructure (241) and the longitudinal abutment portion (2423), and is fixedly connected to the first substructure (241) and the longitudinal abutment portion (2423); the longitudinal abutment portion (2423) abuts against the first baffle and the second baffle respectively; and the bottom of the longitudinal abutment portion (2423) is fixedly connected to the vehicle frame (1).

6. The safety-improved non-powered trailer according to claim 5, characterized in that: The lateral abutment portion (2421) is rectangular or triangular.

7. The safety-improved non-powered trailer according to claim 1, characterized in that: The safety-improved non-powered trailer further comprises a traction head (3) connected to one end of the trailer body, the traction head (3) comprising a fork assembly (31), the fork assembly (31) being connected to the bottom of the trailer body, the fork assembly (31) comprising a cross bar (311), a second spring (312) and a first movable locking assembly (313), one end of the cross bar (311) being connected to the vehicle frame (1), and the other end being connected to the traction head (3), the second spring (312) being sleeved on the cross bar (311), one end of the second spring (312) being in contact with the first movable locking assembly (313), and the other end being connected to the vehicle frame (1); The first movable locking assembly (313) comprises a first nut (3131) and a second nut (3132); a first thread is provided on the cross bar (311) in an area corresponding to the travel range of the second spring (312); the first nut (3131) and the second nut (3132) are both provided on the cross bar (311) via the first thread, and the first nut (3131) and the second nut (3132) are tightly fitted.

8. The safety-improved non-powered trailer according to claim 1, characterized in that: The safety-improved non-powered trailer further comprises a pedal assembly (4) arranged at the bottom of the trailer body, the pedal assembly (4) comprising a horizontally arranged support rod (41), a transmission component (46) being arranged in the middle of the support rod (41), the transmission component (46) being connected to the bottom of a vertically arranged support shaft (42), the support shaft (42) being sleeved with a second movable locking assembly, a third spring (43) and a support sleeve (45) in sequence from top to bottom, the top of the support shaft (42) being in contact with the trailer body; The second movable locking component is a third nut (44); a second thread is provided on the support shaft (42) in an area corresponding to the travel of the third spring (43); the third nut (44) moves up and down on the support shaft (42) via the second thread; and the support sleeve (45) is fixedly provided at the bottom of the support shaft (42).

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