Middle axle shelter trailer capable of running in remote control mode in non-traction state

Abstract

The utility model discloses a mid-axle shelter trailer capable of being remotely controlled to run in a non-traction state, which comprises a cross-country trailer and a mid-axle trailer main body positioned on the rear side of the cross-country trailer, the top end of the mid-axle trailer main body is connected with a connecting tow hook, and the top end of the connecting tow hook is connected with a hook on the rear side of the cross-country trailer. An equipment box and a diesel engine set are arranged at the position, close to the top end, of the upper portion of the middle axle trailer body. The utility model relates to a middle axle shelter trailer capable of running in a remote control mode in a non-traction state. According to the cross-country trailer, the telescopic lifting driving steering wheel is additionally arranged near the traction rod, so that short-distance transition movement and the like in narrow and small spaces such as a storeroom are achieved, the lifting mechanism is in a contraction state during traction driving, it is guaranteed that the steering wheel body has enough ground clearance, and train driving is not affected; in a non-traction state, the lifting mechanism is in an extension state, it is guaranteed that the steering wheel body can tightly press the ground, and then remote control running including advancing, retreating, steering and the like is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to automobile components, in particular to a mid-axle square cabin trailer which can be driven by remote control in a non-traction state. Background Art

[0002] Typically, a mid-axle trailer relies on the power provided by the vehicle in front when towing, enabling it to follow the vehicle's power source and travel off-road. However, when unhooked, when the trailer lacks a traction source, short-distance maneuvers such as relocation require manual labor or the use of other small vehicles. This is particularly challenging inside a warehouse, where the space is confined. A self-powered trailer that can be driven remotely could address this issue, ensuring it can follow the vehicle in front for off-road travel while also utilizing its own power for flexible and maneuverable relocation. Utility Model Content

[0003] The purpose of the utility model is to provide a mid-axle box trailer that can be remotely driven in a non-towing state, so as to solve the problem raised in the above background technology that the mid-axle trailer currently on the market cannot be flexibly converted after being uncoupled from the front vehicle.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mid-axle box cabin trailer that can be remotely controlled in a non-towing state, comprising an off-road trailer and a mid-axle trailer body at the rear side thereof, the top of the mid-axle trailer body being connected with a connecting hook, and the top of the connecting hook being connected with a hook at the rear side of the off-road trailer, an equipment box and a diesel engine unit being arranged at a top position above the mid-axle trailer body, and the equipment box and the diesel engine unit being arranged symmetrically, a box cabin body being arranged at a rear position above the mid-axle trailer body, a driving steering wheel being further provided at the bottom of the mid-axle trailer body, the driving steering wheel comprising a steering wheel body and a lifting mechanism, the top of the lifting mechanism being connected to the bottom of the mid-axle trailer body, and the bottom of the lifting mechanism being connected to the steering wheel body, a hydraulic tail plate being provided at the bottom of the box cabin body, and a moving main wheel being further provided at the middle position of the bottom of the mid-axle trailer body.

[0005] Preferably, two groups of driving steering wheels are symmetrically arranged front and back at the bottom of the center axle trailer body, which are used for stable movement of the entire center axle trailer body.

[0006] Preferably, the lifting mechanism includes a fixed housing and a rotating ball screw, and the fixed housing bearing is fixed to the outside of the rotating ball screw to protect the rotating ball screw.

[0007] Preferably, the external thread of the rotating ball screw is connected to a moving sleeve, and the bottom of the moving sleeve is connected to the mounting bracket at the top of the steering wheel body, and the top of the rotating ball screw is connected to the driving gear.

[0008] Preferably, a meshing gear is provided on the outer side of the driving gear and is arranged perpendicularly thereto, and the top end of the meshing gear is connected to the inner top end bearing of the fixed housing.

[0009] Preferably, the driving gear and the meshing gear are both arranged in a conical structure, and a polygonal through-hole is provided on the top of the driving gear, and the position of the through-hole is connected to the hand-cranked socket on the surface of the fixed shell.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the mid-axle box trailer can be remotely controlled in a non-traction state; the off-road trailer adds a retractable and liftable driving steering wheel near the towing rod to achieve short-distance transfer and movement in a narrow space such as a warehouse. Since the trailer is an off-road type, the longitudinal passing angle of the trailer train must be considered to avoid affecting the maneuverability of the vehicle. Taking into account cost and reliability factors, the off-road trailer is a mature product in the market. By adding a lifting mechanism, the lifting mechanism is in a retracted state during towing, ensuring that the steering wheel body has sufficient ground clearance and does not affect the train travel; in the non-traction state, the lifting mechanism is in an extended state, ensuring that the steering wheel body can press against the ground, thereby achieving remote control travel, including forward, backward, turning, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the driving steering wheel of the utility model;

[0013] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the main cross-sectional structure of the driving steering wheel of the utility model.

[0015] In the figure: 1. Off-road trailer; 2. Connecting hook; 3. Diesel engine; 4. Driving steering wheel; 41. Steering wheel body; 42. Lifting mechanism; 421. Fixed housing; 422. Rotating ball screw; 423. Moving sleeve; 424. Meshing gear; 425. Driving gear; 5. Center axle trailer body; 6. Cabin body; 7. Equipment box; 8. Hydraulic tail plate; 9. Hand crank socket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-4 The utility model provides a technical solution: a mid-axle cabin trailer that can be remotely driven in a non-towing state, comprising an off-road trailer 1 and a mid-axle trailer body 5 at the rear side thereof, the top of the mid-axle trailer body 5 is connected with a connecting hook 2, and the top of the connecting hook 2 is connected to the hook at the rear side of the off-road trailer 1, an equipment box 7 and a diesel engine set 3 are arranged at the top of the mid-axle trailer body 5, and the equipment box 7 and the diesel engine set 3 are arranged symmetrically, a cabin body 6 is arranged at the upper rear side of the mid-axle trailer body 5, a driving steering wheel 4 is further provided at the bottom of the mid-axle trailer body 5, the driving steering wheel 4 includes a steering wheel body 41 and a lifting mechanism 42, the top of the lifting mechanism 42 is connected to the bottom of the mid-axle trailer body 5, and the bottom of the lifting mechanism 42 is connected to the steering wheel body 41, a hydraulic tail plate 8 is provided at the bottom of the cabin body 6, and a moving main wheel 10 is also provided at the middle position of the bottom of the mid-axle trailer body 5;

[0018] The present application provides a mid-axle box trailer with a lifting mechanism 42. Specifically, when in use, first, when the entire mid-axle trailer body 5 needs to be connected to the off-road trailer 1 in front, it is only necessary to take the external connecting hook 2 and connect it to the hook at the rear of the off-road trailer 1. Then, the lifting mechanism 42 is activated, so that the lifting mechanism 42 contracts and drives the steering wheel body 41 at the bottom thereof to move upward. Therefore, when the off-road trailer 1 outside is moving, it can drag the mid-axle trailer body 5 under the action of the moving main wheels 10 to move, thereby ensuring that the steering wheel body 41 has sufficient ground clearance and does not affect the normal driving of the off-road trailer 1.

[0019] When the entire mid-axle trailer body 5 is in a non-towing state with the off-road trailer 1, the connecting hook 2 is in a separated state from the off-road trailer 1. Therefore, at this time, in order to ensure that the entire mid-axle trailer body 5 can also move flexibly, it is necessary to control the lifting mechanism 42 to be in an extended state, thereby ensuring that the steering wheel body 41 on the driving steering wheel 4 can be pressed against the ground, and then under the action of the diesel engine unit 3 and the equipment box 7, remote control driving, including forward, backward, steering, etc., can be achieved.

[0020] In this application, according to Figure 2and Figure 4 As shown,

[0021] Two groups of driving steering wheels 4 are symmetrically arranged front and back at the bottom of the center axle trailer body 5 to ensure stable movement of the entire center axle trailer body 5.

[0022] The lifting mechanism 42 includes a fixed housing 421 and a rotating ball screw 422 . The fixed housing 421 is fixed to the outside of the rotating ball screw 422 with a bearing for protecting the rotating ball screw 422 .

[0023] The external thread of the rotating ball screw 422 is connected to the moving sleeve 423 , and the bottom of the moving sleeve 423 is connected to the mounting frame at the top of the steering wheel body 41 , and the top of the rotating ball screw 422 is connected to the driving gear 425 .

[0024] A meshing gear 424 is provided on the outer side of the driving gear 425 and is arranged perpendicular thereto. The top end of the meshing gear 424 is connected to the top end bearing inside the fixed housing 421 .

[0025] The driving gear 425 and the meshing gear 424 are both arranged in a conical structure, and a polygonal through-hole is provided at the top of the driving gear 425, and the position of the through-hole is connected to the hand crank socket 9 on the surface of the fixed housing 421;

[0026] Specifically, when the lifting mechanism 42 is controlled to start, it is necessary to take the external hand crank through the hand crank socket 9 and engage it with the polygonal through-hole on the driving gear 425. After that, the external hand crank is controlled to rotate. When the hand crank rotates, the driving gear 425 rotates, and then it engages with the meshing gear 424, thereby rotating the meshing gear 424. When the meshing gear 424 rotates, it drives the rotating ball screw 422 coaxially connected thereto to rotate. When the rotating ball screw 422 rotates again, it is threadedly connected to the moving sleeve 423, thereby causing the moving sleeve 423 to drive the steering wheel body 41 at its bottom to move up and down, thereby completing the folding and extension work of the lifting mechanism 42.

[0027] In this application, a limiting slider is provided on the outside of the movable sleeve 423, and it performs up and down movement limiting work in the slide groove inside the fixed shell 421. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mid-axle box trailer that can be remotely driven in a non-traction state, comprising an off-road trailer (1) and a mid-axle trailer body (5) located at the rear of the off-road trailer, characterized in that: The top of the center-axle trailer body (5) is connected to a connecting hook (2), and the top of the connecting hook (2) is connected to a hook at the rear side of the off-road trailer (1). An equipment box (7) and a diesel engine set (3) are provided at a position slightly above the top of the center-axle trailer body (5), and the equipment box (7) and the diesel engine set (3) are symmetrically arranged. A cabin body (6) is provided at a position slightly above the rear of the center-axle trailer body (5). A driving steering wheel (4) is also provided at the bottom of the cabin body (6), and the driving steering wheel (4) includes a steering wheel body (41) and a lifting mechanism (42). The top of the lifting mechanism (42) is connected to the bottom of the mid-axle trailer body (5), and the bottom of the lifting mechanism (42) is connected to the steering wheel body (41). A hydraulic tail plate (8) is provided at the bottom of the cabin body (6), and a moving main wheel (10) is also provided at the middle position of the bottom of the mid-axle trailer body (5).

2. The mid-axle shelter trailer capable of remote-controlled travel in a non-towing state according to claim 1, characterized in that: The driving steering wheels (4) are symmetrically arranged in two groups at the bottom of the center axle trailer body (5) in the front and rear directions, and are used for the stable movement of the entire center axle trailer body (5).

3. The mid-axle box trailer capable of remote control travel in a non-towing state according to claim 1, characterized in that: The lifting mechanism (42) comprises a fixed housing (421) and a rotating ball screw (422); the fixed housing (421) bearing is fixed to the outside of the rotating ball screw (422) for protecting the rotating ball screw (422).

4. The mid-axle shelter trailer capable of remote-controlled travel in a non-towing state according to claim 3, characterized in that: The external thread of the rotating ball screw (422) is connected to a movable sleeve (423), and the bottom of the movable sleeve (423) is connected to the mounting frame at the top of the steering wheel body (41), and the top of the rotating ball screw (422) is connected to the driving gear (425).

5. The mid-axle shelter trailer capable of remote-controlled travel in a non-towing state according to claim 4, characterized in that: The outer side of the driving gear (425) is provided with a meshing gear (424) arranged perpendicularly thereto, and the top end of the meshing gear (424) is connected to the inner top end bearing of the fixed housing (421).

6. The mid-axle shelter trailer capable of remote-controlled travel in a non-towing state according to claim 5, characterized in that: The driving gear (425) and the meshing gear (424) are both arranged in a conical structure, and a polygonal through-hole is provided at the top of the driving gear (425), and the position of the through-hole is connected to the hand crank socket (9) on the surface of the fixed housing (421).

Images