Multifunctional trailer with arc-shaped trailer head

Abstract

The utility model relates to the technical field of trailers, in particular to a multifunctional trailer with an arc-shaped trailer head. Comprising a chassis, a compartment and a control cabinet are arranged on the chassis in a spaced mode, a vehicle door and a top-hung window which can be opened and closed are arranged on the two side walls of the compartment respectively, the front end of the compartment is in a circular arc shape, the top-hung window comprises a window body rotationally installed on the side walls of the compartment, lapping rods are arranged on the two sides of the window body, and telescopic supporting rods are arranged on the lapping rods in a lapping mode. A barrel base is rotationally installed on the side wall of the compartment, the lower end of the supporting rod is inserted into the barrel base, a plurality of threaded knobs are arranged on the outer hanging edge of the window body at intervals, and threaded holes matched with the threaded knobs are formed in the outer wall of the compartment. During use, the lantern ring is sleeved on the lapping rod, and the end part of the lower rod is inserted into the cylinder seat, so that triangular support is formed, and outward support of the top-hung window is realized. After the lantern ring sleeves the lapping rod, the notch is laterally deviated relative to the limiting rod, so that the lantern ring cannot be easily separated from the lapping rod, and the lantern ring and the limiting rod are matched, so that the top-hung window is stably supported.

Description

Technical Field

[0001] This utility model relates to the field of trailer technology, and in particular to a multi-functional trailer with an arc-shaped front. Background Technology

[0002] Box trailers are one of the most common types of trailers used for cargo transportation and form the basic structure of RVs, catering trucks, and other functional vehicles. For functional vehicles such as catering trucks and sales trucks, the cargo box is equipped with doors and windows around its perimeter, and various household appliances, such as refrigerators, storage containers, and kitchenware (including but not limited to induction cookers and ovens), are installed inside to form an integrated living area to meet the user's lifestyle needs.

[0003] The existing vehicle windows (larger windows) of functional vehicles are mainly divided into three categories: casement windows, top-hung windows, and roller shutter windows.

[0004] Casement windows, also known as ordinary windows or operable windows, open by rotating inwards or outwards (to avoid interference with internal equipment and space occupation when the window is open, most vehicle windows are outward-swivel windows). Top-hung windows are windows that tilt upwards and are restrained by a support structure. Roller shutter windows are formed by connecting multiple panels to create a flexible door that can be rolled up from its own axis or pulled up along the side wall of the vehicle.

[0005] While casement windows and roller shutters are convenient to open and close, they lack the sunshade effect that top-hung windows provide when opened and extended outwards, which is ideal for functional vehicles. Therefore, many trailers use outward-hung windows for their large windows, such as those used for outdoor camping or other activities, where the window frame is supported by brackets to form a canopy.

[0006] Traditional outward-hung windows are typically raised using either a winch, hydraulic drive, or manual support rods. Using mechanical components results in either an unsightly exterior or an interior that occupies space for other parts. Manual support rods, either resting on the ground or against the side wall of the carriage, are not secure.

[0007] In addition, most existing trailers have box-shaped cargo boxes, which increase traction resistance and fuel consumption when the tractor is carrying a load due to the wind direction at the front end.

[0008] Therefore, this utility model provides a multi-functional trailer with an arc-shaped front, which sets the front of the trailer into an arc shape to reduce wind resistance; at the same time, the support structure of the external window is modified to improve the support stability and convenience of the external window. Utility Model Content

[0009] The purpose of this utility model is to solve the problems existing in the prior art by proposing a multi-functional trailer with an arc-shaped front.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A multi-functional trailer with an arc-shaped front end includes a chassis, on which a cargo box and a control cabinet are spaced apart. The two side walls of the cargo box are respectively provided with openable and closable doors and top-hung windows. The front end of the cargo box is arc-shaped. The top-hung window includes a window body rotatably mounted on the side wall of the cargo box. There are struts on both sides of the window body, and telescopic support rods are placed on the struts. A cylindrical seat is rotatably mounted on the side wall of the cargo box. The lower end of the support rod is inserted into the cylindrical seat. Multiple threaded knobs are spaced apart on the outer edge of the window body. The outer wall of the cargo box is provided with threaded holes that mate with the threaded knobs.

[0012] Multiple sets of auxiliary support equipment are also provided around the lower part of the chassis to support the chassis under static load; a traction device is provided on the front side of the chassis.

[0013] Preferably, the carriage has a circular cargo container arranged around the inner wall of the carriage, a washbasin and a refrigerated cabinet inside the carriage, a garbage recycling bin on the side of the washbasin on the cargo container, a side door corresponding to the garbage recycling bin on the side wall of the carriage, transparent windows around the outer wall of the carriage, and heating and ventilation equipment on the top wall of the carriage.

[0014] Preferably, the support rod includes an upper rod and a lower rod. The top end of the upper rod is provided with a collar that mates with the support rod, and the outer wall of the lower end of the upper rod is provided with external threads. The lower rod is a through hollow rod with internal threads that mate with the external threads.

[0015] Preferably, both the external thread and the internal thread are self-locking threads.

[0016] Preferably, the end of the connecting rod is provided with a limiting rod, and the side wall of the collar is provided with a notch for the limiting rod to pass through.

[0017] Preferably, the size difference between the notch and the limiting rod does not exceed 1 cm.

[0018] Preferably, the carriage is equipped with an insulation layer and a fireproof layer.

[0019] Preferably, the auxiliary support device includes a support base fixed to the chassis, and two connecting rods 1 are rotatably mounted on the lower end of the support base. The lower ends of the two connecting rods 1 are rotatably mounted with fastening sleeves, and the lower ends of the two fastening sleeves are rotatably mounted with connecting rods 2. The lower ends of the two connecting rods 2 are rotatably connected to a base.

[0020] It also includes a drive shaft, which has two external threads with opposite directions, and the two external threads are threadedly connected to two fastening sleeves respectively.

[0021] Preferably, the bottom end of the base is evenly distributed with several ground spikes.

[0022] Preferably, the support base is a pipe with an open bottom, and the pipe has limiting openings on both sides of the lower end.

[0023] Compared with the prior art, this utility model provides a multi-functional trailer with an arc-shaped front, which has the following advantages:

[0024] 1. In use, this utility model first passes the collar through one end of the limiting rod; then adjust its position so that the notch passes through the end of the limiting rod, allowing the collar to be fitted onto the support rod. Next, insert the end of the lower rod into the cylindrical base, forming a triangular support to achieve external support for the top-hung window. The upper rod's freedom of movement is restricted by the pressure of the cylindrical base and the top-hung window, preventing the support rod composed of the upper and lower rods from shifting; and after the collar is fitted onto the support rod, the notch is offset relative to the limiting rod, preventing the collar from easily detaching from the support rod. These two factors combined ensure stable support for the top-hung window. Twisting the lower rod controls the extension and retraction of the support rod, thereby controlling the opening angle of the top-hung window, making adjustments more convenient.

[0025] 2. In this utility model, the head of the carriage is an arc shape with a rounded head, which is used to reduce forward wind resistance.

[0026] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0027] Figure 1 This is a top-view three-dimensional schematic diagram of the left-side view axis of this utility model.

[0028] Figure 2 This is a top-view perspective schematic diagram of the right-side axis of this utility model.

[0029] Figure 3 This is a three-dimensional schematic diagram of the present invention viewed from below along the right-hand axis.

[0030] Figure 4 This is a rear view schematic diagram of the present invention.

[0031] Figure 5 This is a three-dimensional schematic diagram of the carriage 2 of this utility model after the roof has been removed.

[0032] Figure 6 For the present utility model Figure 1 A partial schematic diagram of point A.

[0033] Figure 7 This is a three-dimensional schematic diagram of the auxiliary support device of this utility model.

[0034] Figure 8 This is a plan view of the auxiliary support device of this utility model.

[0035] Figure 9 This is a schematic diagram of the externally suspended window support structure of this utility model.

[0036] In the diagram: 1. Chassis; 2. Cargo compartment; 3. Control cabinet; 4. Traction device; 5. HVAC equipment; 6. Washbasin; 7. Door; 8. Cargo container; 9. Refrigerated storage cabinet; 10. Warehouse door; 11. Window; 12. Cylinder seat; 13. Lower rod; 14. Upper rod; 15. Collar; 16. Connecting rod; 17. Threaded knob; 18. Support seat; 19. Connecting rod one; 20. Connecting rod two; 21. Fastening screw sleeve; 22. Base; 23. Limit opening; 24. Drive shaft; 25. Limit rod. Detailed Implementation

[0037] The following will refer to the appendix in the embodiments of this utility model. Figure 1-9 The technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0038] Example 1: To address the problems existing in the prior art, this example provides a multi-functional trailer with an arc-shaped cab, including a chassis 1. The chassis 1 is a steel frame welded together, and a metal base plate serving as a standing / supporting surface is welded and fixed onto the steel frame. Multiple sets of wheels are spaced apart on both the left and right sides of the lower end of the chassis 1 to facilitate trailer movement. A bridge is provided at the wheel mounting points for shock absorption.

[0039] The chassis 1 is provided with a carriage 2 and a control cabinet 3 at intervals.

[0040] The carriage 2 consists of a frame, filler material, and wall panels. The frame is a perforated structure made of welded and fixed stainless steel pipes. Insulation material is filled inside the frame for interior insulation. Fireproof layers are laid on both sides of the frame to prevent fire. The fireproof layers on both sides are then covered with wall panels made of stainless steel. This structure gives carriage 2 excellent insulation and fire resistance. The external shape of carriage 2 is: the head of carriage 2 is a rounded arc to reduce forward wind resistance.

[0041] The left side of the carriage 2, near the front of the vehicle, is equipped with an openable and closable door 7 for entering and exiting the carriage 2. The front and left side of the carriage 2 are equipped with multiple small casement windows for supplementary lighting and ventilation.

[0042] The right side of the carriage 2 is equipped with a floor-to-ceiling window. When the window is opened, it can form a canopy and may also expand the field of vision inside the vehicle.

[0043] The interior ceiling of the carriage 2 is equipped with lighting fixtures. These fixtures can be LED tubes (requiring lamp holders) or LED light strips can be installed around the perimeter of the interior ceiling. The LED light strips also allow for adjustable brightness. The lighting switches are located on the side of the interior door 7 for easy access.

[0044] The upper part of the carriage 2 is equipped with an air conditioner outdoor unit, and the carriage 2 is equipped with an air conditioner, forming a heating and ventilation system 5 for heating / cooling inside the carriage.

[0045] The carriage 2 has multiple sets of circular storage containers 8 arranged around its inner wall for storing goods. The containers 8 are assembled sequentially to form a circular shape, which is aesthetically pleasing and maximizes space utilization. The upper surface of the containers 8 forms a work surface (a serving board for food carts, and a cash register and goods rack for sales carts). The inner wall of the carriage 2 is equipped with multiple cabinets to further improve space utilization.

[0046] The inner wall of the carriage 2, above the container 8, is equipped with multiple sockets for connecting electrical appliances, such as ovens, induction cookers, and kettles.

[0047] Multiple washbasins 6 are distributed at the front of the carriage 2. Below each washbasin 6 are spaced water storage tanks, clean water tanks, and wastewater tanks, each with an inlet and an outlet. The inlet of the water storage tank is located outside the carriage 2 for easy filling; the outlet of the wastewater tank is also located outside the carriage 2 for easy drainage. Both the inlet of the water storage tank and the outlet of the wastewater tank are fitted with caps to control the opening and closing of the pipes. The water storage tank stores clean water, and its outlet is connected via a water pipe to a faucet located beside the washbasin 6. The inlet of the clean water tank is connected to the drain of the washbasin 6. The clean water tank contains a water purifier for simple purification of the discharged wastewater, such as using a filter basket to separate obvious solid debris from the water. The outlet of the clean water tank is connected to the wastewater tank, where the separated wastewater is stored.

[0048] The carriage 2 is equipped with a fire-fighting system: The first option is to install a coil on the roof with multiple fire sprinklers, connected to a wastewater tank. The purified wastewater is used for fire extinguishing, utilizing wastewater and saving space on an external fire tank. The second option is to install multiple fire extinguishers inside the carriage 2.

[0049] The compartment 2 is equipped with a refrigerated cabinet 9 located at the position of the external window. The external glass of the refrigerated cabinet 9 is transparent, making it easy to observe the items inside.

[0050] Inside the carriage 2, an elevated panel is located adjacent to the washbasin 6 and the overhead window. The panel has a flip-up end cap, and a garbage collection bin is located below the panel for collecting and disposing of garbage. A side door corresponding to the garbage collection bin is located on the right side of the carriage 2. The side door can be opened and closed, allowing the garbage collection bin to be removed from the side door, which facilitates garbage disposal and regular cleaning of the garbage collection bin.

[0051] The chassis 1 is equipped with a tow 4 at the front end. The tow 4 can be used to manually pull the carriage 2 directly, or to connect the carriage 2 to the power head to form a complete vehicle body, thereby realizing the movement and transfer of the carriage 2.

[0052] A control cabinet 3 is located on the chassis 1 between the traction device 4 and the carriage 2, and the electrical appliances inside the carriage 2 are controlled through the control cabinet 3.

[0053] The carriage 2 is equipped with a storage battery to store energy and power the various electrical appliances inside the carriage 2.

[0054] The rear side of the carriage 2 is equipped with an openable and closable door 10, which is larger than the carriage door 7. The door 10 is designed to provide space for equipment such as the container 8 to pass through after the carriage 2 is assembled. After the equipment inside the carriage 2 is installed, the door 10 is closed and not easily opened.

[0055] The outer perimeter of the carriage 2 is equipped with multiple yellow warning lights or warning strips for avoidance purposes.

[0056] Based on the above, a trailer system integrating functions such as washing, refrigeration, and heating / ventilation is thus formed.

[0057] To ensure greater stability of the external support when the top-hung window is open, this embodiment specifies the structure of the top-hung window and provides supporting components for it:

[0058] The top-hung window includes a window body 11. A window frame that mates with the window body 11 is located on the right side of the carriage 2. The window body 11 is rotatably mounted on the upper side of the window frame via a hinge structure. Multiple threaded knobs 17 are spaced apart on the outer edge of the window body 11, and threaded holes that mate with the threaded knobs 17 are located on the outer wall of the carriage 2. By engaging the threaded knobs 17 with the threaded holes, the window body 11 is secured to the window frame, thus achieving a tight closure of the top-hung window.

[0059] The support assembly consists of two sets, distributed on both sides of the top-hung window, providing dual support to improve stability. Each support assembly includes a cylindrical base 12, rotatably mounted below the frame. A lower rod 13 is inserted into the cylindrical base 12; the lower rod 13 is a through-hole rod with internal threads. An upper rod 14 is installed inside the hollow rod; the lower outer wall of the upper rod 14 has external threads, and the internal and external threads engage, allowing the upper rod 14 and lower rod 13 to form an extendable and retractable support rod for adjusting the opening angle of the top-hung window. A collar 15 is fixed to the upper end of the upper rod 14, and extended support rods 16 are provided on both sides of the window frame 11 at the outer cantilever ends. A limiting rod 25 is provided at the end of the support rod 16, and a notch is provided on the side wall of the collar 15 to allow the limiting rod 25 to pass through.

[0060] Based on the above technical solution:

[0061] In use, open the top-hung window and first pass the collar 15 through one end of the limiting rod 25. Then adjust its position so that the notch of the collar 15 corresponds to the other end of the limiting rod 25. Laterally deflect the support rod so that the notch passes through the end of the limiting rod 25, thus allowing the collar 15 to be fitted onto the support rod 16. Next, insert the end of the lower rod 13 into the cylinder seat 12 to form a triangular support, achieving external support for the top-hung window. The upper rod 14 is restricted in its degree of freedom by the cylinder seat 12 and the downward pressure of the top-hung window, preventing the support rod composed of the upper rod 14 and the lower rod 13 from shifting. Furthermore, after the collar 15 is fitted onto the support rod 16, the notch is laterally deflected relative to the limiting rod 25, preventing the collar 15 from easily detaching from the support rod 16. These two factors work together to ensure the top-hung window is stably supported. Twisting the lower rod 13 controls the extension and retraction of the support rod, thereby controlling the opening angle of the top-hung window, making adjustments more convenient.

[0062] In this embodiment, the size difference between the notch and the limiting rod 25 does not exceed 1 cm. This ensures that the limiting rod 25 passes through the notch while preventing the notch from being too large and causing the limiting ring to easily detach from the notch, thus improving the tightness of the connection between the collar 15 and the connecting rod 16.

[0063] In this embodiment, the thread between the upper rod 14 and the lower rod 13 has self-locking properties to prevent the support rod from retracting under force, thereby ensuring the support stability of the top-hung window.

[0064] In this embodiment, the collar 15 and the upper rod 14 can be rotatably connected, and the cylinder seat 12 has an internal thread and the lower end of the lower rod 13 has an external thread, so that the lower rod 13 and the cylinder seat 12 are threadedly connected. In this way, the cylinder seat 12, the lower rod 13, the upper rod 14, the collar 15, the connecting rod 16, and the upper window are stably connected, and even in windy weather, the lower rod 13 will not detach from the cylinder seat 12. The collar 15 is rotatably connected to the upper rod 14, so as not to affect the relative rotation between the upper rod 14 and the lower rod 13 to achieve contraction or extension.

[0065] In a further embodiment of this solution, in order to improve the stability of the carriage 2 under static load, multiple auxiliary support devices are evenly distributed around the lower end of the chassis. The auxiliary support devices include a support base 18 fixed to the chassis 1. Two connecting rods 19 are rotatably mounted on the lower end of the support base 18. Fastening sleeves 21 are rotatably mounted on the lower end of each of the two connecting rods 19. Connecting rods 20 are rotatably mounted on the lower end of each of the two fastening sleeves 21. The lower ends of the two connecting rods 20 are rotatably connected to a base 22.

[0066] It also includes a drive shaft 24, which has two external threads with opposite directions, and the two external threads are threadedly connected to two fastening sleeves 21 respectively.

[0067] By turning the drive shaft 24, the two fastening sleeves 21 move closer or further apart. When the two fastening sleeves 21 move closer together, the connecting rods 19 and 20 on both sides become nearly vertical and press against the base 22 on the ground, providing multiple supporting forces to the carriage 2, making the carriage 2 more stable after static load.

[0068] In this embodiment, the bottom end of the base 22 is evenly distributed with several ground spikes. This increases the connection with the ground and reduces the probability of sideslip.

[0069] In this embodiment, the support base 18 is a tube with an open lower end, and limiting openings 23 are provided on both sides of the lower end of the tube. By turning the drive shaft 24, the two fastening sleeves 21 move away from each other, and the connecting rods 19 and 20 on both sides become nearly horizontal. Connecting rod 19 abuts against the limiting openings 23 of the support base 18, thus realizing the retraction of the auxiliary support equipment. Furthermore, the connecting rod 19 abuts against the limiting openings 23, thereby limiting the auxiliary support equipment and preventing it from swaying with the movement of the carriage 2 after retraction.

[0070] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A circular arc-shaped car head multifunctional trailer, comprising a chassis (1), a carriage (2) and a control cabinet (3) are arranged on the chassis (1) in intervals, and the two side walls of the carriage (2) are respectively provided with openable doors (7) and upper suspended windows, characterized in that, The front end of the carriage (2) is arc-shaped, the upper-hung window comprises a window body (11) rotatably installed on the side wall of the carriage (2), a clamping rod (16) is arranged on each side of the window body (11), a telescopic supporting rod is arranged on each clamping rod (16), a cylinder seat (12) is rotatably installed on the side wall of the carriage (2), the lower end of the supporting rod is inserted into the cylinder seat (12), a plurality of threaded knobs (17) are arranged on the outer hanging edge of the window body (11) at intervals, and a threaded hole matched with the threaded knob (17) is arranged on the outer wall of the carriage (2); A plurality of groups of auxiliary supporting devices are further arranged on the periphery of the lower end of the chassis (1) and used for supporting the chassis (1) when static load is applied; and a tractor (4) is arranged on the front side of the chassis (1); The auxiliary supporting device comprises a supporting seat (18) fixed to the chassis (1), two connecting rods I (19) are rotatably and symmetrically installed at the lower end of the supporting seat (18), a fastening screw sleeve (21) is rotatably installed at the lower end of each connecting rod I (19), a connecting rod II (20) is rotatably installed at the lower end of each fastening screw sleeve (21), and a base (22) is rotatably connected to the lower ends of the two connecting rod IIs (20). A driving shaft (24) is further arranged, two external threads with opposite rotation directions are arranged on the driving shaft (24), and the two external threads are respectively threadedly connected with the two fastening screw sleeves (21).

2. The multi-functional round-nose trailer according to claim 1, wherein A circular cargo cabinet (8) is arranged around the inner wall of the carriage (2), a washing basin (6) and a cold storage cabinet (9) are arranged in the carriage (2), a garbage recycling box is arranged on the cargo cabinet (8) at the side of the washing basin (6), a side door corresponding to the garbage recycling box is arranged on the side wall of the carriage (2), a window is arranged on the periphery of the outer wall of the carriage (2), and a heating and ventilation device (5) is arranged on the top wall of the carriage (2).

3. The multi-functional round-nose trailer according to claim 1, wherein, The supporting rod comprises an upper rod (14) and a lower rod (13), a sleeve ring (15) matched with the clamping rod (16) is arranged at the top end of the upper rod (14), an external thread is arranged on the outer wall of the lower end of the upper rod (14), and the lower rod (13) is a hollow rod, and an internal thread matched with the external thread is arranged in the hollow rod.

4. The multi-functional round-nose trailer according to claim 3, wherein, The external thread and the internal thread are self-locking threads.

5. The multi-functional round-nose trailer as defined in claim 3, wherein, A limiting rod (25) is arranged at the end of the clamping rod (16), and a gap through which the limiting rod (25) passes is arranged on the side wall of the sleeve ring (15).

6. The multi-functional round-nose trailer according to claim 5, wherein, The size difference between the gap and the limiting rod (25) is not more than 1 cm.

7. The multi-functional round nose trailer of claim 1, wherein, The carriage (2) is provided with a heat preservation layer and a fireproof layer.

8. The multi-functional round nose trailer of claim 1, wherein, The bottom ends of the base (22) are uniformly provided with a plurality of ground spikes.

9. The multi-functional round nose trailer of claim 1, wherein, The supporting seat (18) is a pipe material with an open lower end, and limiting openings (23) are arranged on the two sides of the lower end of the pipe material.

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