Excavator trailer

Abstract

The present application relates to the field of trailers, and specifically discloses an excavator trailer, comprising a trailer frame and wheels mounted on the trailer frame, and is characterized in that: a guide frame is mounted at the rear end of the trailer frame, one end of the guide frame is hinged to the trailer frame, and the other end is a free end; a locking pin is fixed to the guide frame, a positioning plate is mounted on the trailer frame, a locking hole is provided on the positioning plate, and the locking pin is inserted into the locking hole when the guide frame is rotated to a vertical position; and a hydraulic rod is also included, one end of the hydraulic rod is hinged to the trailer frame, and the other end is hinged to the guide frame.

Description

Technical Field

[0001] The present application relates to the field of trailers, and in particular to an excavator trailer. Background Art

[0002] A trailer is a vehicle that has no power device and is towed by a tractor. A trailer is generally used to transport vehicles with damaged wheels or special vehicles. For example, a trailer disclosed in publication number CN102806953A includes a frame, wheels and a handle.

[0003] The flap at the rear end of the existing frame needs to be turned over manually, which is laborious. Summary of the invention

[0004] In order to improve the above-mentioned problems, the present application provides an excavator trailer.

[0005] The excavator trailer provided in this application adopts the following technical solution:

[0006] An excavator trailer comprises a trailer frame and wheels mounted on the trailer frame, and is characterized in that: a guide frame is installed at the rear end of the trailer frame, one end of the guide frame is hinged to the trailer frame, and the other end is a free end; a locking pin is fixed to the guide frame, a positioning plate is installed on the trailer frame, a locking hole is opened on the positioning plate, and the locking pin is inserted into the locking hole when the guide frame is rotated to vertical; and a hydraulic rod is also included, one end of the hydraulic rod is hinged to the trailer frame, and the other end is hinged to the guide frame.

[0007] By adopting the above technical solution, this solution sets a rotatable guide frame, which can facilitate the excavator to drive into the trailer frame through the guide frame, and the setting of the hydraulic rod facilitates the rotation of the guide frame. The locking hole on the positioning plate and the fixing pin on the guide frame are used together to lock the guide frame after it is retracted.

[0008] Optionally, the positioning plate is connected to the trailer frame via bolts and nuts, and the bolts pass through the positioning plate and the trailer frame and are connected to the nuts.

[0009] By adopting the above technical solution, the bolt and nut method facilitates the installation of the positioning plate.

[0010] Optionally, the trailer frame includes a front frame and a rear frame, the wheels are mounted on the rear frame, the front frame portion is located below the rear frame, one end of the front frame located below the rear frame is hinged to the rear frame, and the front frame and the rear frame are locked and connected via a locking mechanism.

[0011] By adopting the above technical solution, when the locking mechanism is unlocked, the front frame can rotate relative to the rear frame.

[0012] Optionally, the locking mechanism includes a mounting seat fixed on the front frame, a latch inserted into the mounting seat, and a spring for inserting the latch toward the rear frame, and a socket corresponding to the latch is provided on the rear frame.

[0013] By adopting the above technical solution, the elasticity of the spring allows the bolt to be inserted into the socket when not subjected to external force, and the bolt is manually pulled out of the socket when unlocking.

[0014] Optionally, the locking mechanisms are symmetrically arranged in two groups.

[0015] By adopting the above technical solution, the connection force is more stable.

[0016] Optionally, a handle is hinged on the front frame, a connecting buckle is hinged on the handle, a rotation axis of the connecting buckle and the handle is parallel to and spaced from a rotation axis of the handle and the front frame, and a connecting hook is fixed on the rear frame.

[0017] By adopting the above technical solution, the above device can further connect the front frame and the rear frame.

[0018] Optionally, auxiliary wheels are installed on the front frame.

[0019] By adopting the above technical solution, the auxiliary wheels are used to support the front frame.

[0020] Optionally, a support frame is fixed to the bottom of the guide frame.

[0021] By adopting the above technical solution, when the rear frame is kept horizontal, one end of the guide frame is in contact with the ground, and at this time the support frame is spaced apart from the ground; when the front end of the rear frame is tilted, the angle between the guide frame and the ground becomes smaller, and at this time the support frame is in contact with the ground. Since the angle between the guide frame and the ground becomes smaller at this time, it is easier for the excavator to enter the rear frame through the guide frame.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: the present solution facilitates the rotation of the guide frame by designing a hydraulic rod; by dividing the frame into a front frame and a rear frame, it is convenient to lift the front end of the rear frame to lower the slope of the guide frame, making it easier for the excavator to get on the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application. Figure 1 ;

[0024] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0025] Figure 3 yes Figure 1 A magnified schematic diagram of part B;

[0026] Figure 4 This is a schematic diagram of the overall structure of the embodiment of the present application. Figure 2 ;

[0027] Figure 5 yes Figure 4 A magnified schematic diagram of part C;

[0028] Figure 6 It is a schematic diagram of the frame.

[0029] Figure numerals: 11, front frame; 12, rear frame; 13, wheel; 14, first rotating shaft; 2, mounting seat; 21, latch; 211, pin head; 212, connecting column; 213, handle; 22, spring; 31, handle; 32, connecting buckle; 33, connecting hook; 4, guide frame; 41, locking pin; 5, positioning plate; 51, locking hole; 6, supporting frame; 7, reinforcing rod; 8, hydraulic rod; 91, auxiliary wheel mounting frame; 92, auxiliary wheel. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] The embodiment of the present application discloses an excavator trailer, including a trailer frame and wheels 13 mounted on the trailer frame. The trailer frame is divided into a front frame 11 and a rear frame 12. The front frame 11 is a triangular frame structure as a whole when viewed from a top view, and the rear frame 12 is a rectangular frame structure as a whole when viewed from a top view. The front frame 11 is made of Q235 steel. The wheels 13 are all mounted on the rear frame 12, and the number is configured according to the designed load. In the present application, there are four wheels. For the convenience of subsequent introduction, they are divided into two front wheels and two rear wheels.

[0036] The rear end portion of the front frame 11 extends into the front end portion of the rear frame 12, and the rear end portion of the front frame 11 is hinged to the front end portion of the rear frame 12 through a first rotating shaft 14. The front frame 11 is located below the rear frame 12 and the two are in contact with each other. The front frame 11 and the rear frame 12 are locked and connected through a locking mechanism. The locking mechanism includes a mounting seat 2 fixed on the front frame 11, a latch 21 inserted on the mounting seat 2, and a spring 22 for inserting the latch 21 in the direction of the rear frame 12, and a socket corresponding to the latch 21 is provided on the rear frame 12. The mounting seat 2 is a U-shaped structure, and the latch 21 is composed of a pin head 211, a connecting column 212 and a handle 213 formed in one piece. The spring 22 is sleeved on the connecting column 212, and one end of the spring 22 is in contact with the pin head 211, and the other end is in contact with the mounting seat 2. The diameter of the pin head 211 is larger than the diameter of the connecting column 212 , and the handle 213 is L-shaped and fixed to the end of the connecting column 212 .

[0037] The locking mechanism is symmetrically arranged in two groups, so that the front frame 11 and the rear frame 12 are locked more reliably. The two latches 21 are force-shared and are not easily damaged.

[0038] A connecting assembly is also provided in the middle of the two locking mechanisms, and the connecting assembly includes a handle 31 hinged on the front frame 11, and a connecting buckle 32 is hinged on the handle 31, and the connecting buckle 32 is a rectangular ring structure. The rotation axis of the connecting buckle 32 and the handle 31 is parallel to the rotation axis of the handle 31 and the front frame 11 and is arranged at intervals. A connecting hook 33 is fixed on the rear frame 12, and the connecting hook 33 has a hook groove. The connection between the front frame 11 and the rear frame 12 is completed by hooking the connecting buckle 32 in the hook groove.

[0039] An auxiliary wheel 92 is installed on one side of the front frame 11, and an auxiliary wheel mounting frame 91 is fixed to the side of the front frame 11, and the auxiliary wheel 92 is rotatably mounted on the auxiliary wheel mounting frame 91. The auxiliary wheel 92 is always supported on the ground.

[0040] A guide frame 4 is installed at the rear end of the rear frame 12. One end of the guide frame 4 is hinged to the trailer frame, and the other end is a free end for contacting the ground. In order to facilitate the flipping of the guide frame 4, a hydraulic rod 8 is provided. One end of the hydraulic rod 8 is hinged to the rear frame 12, and the other end is hinged to the guide frame 4. A locking pin 41 is fixed on the guide frame 4, and a positioning plate 5 is installed on the trailer frame. A locking hole 51 is provided on the positioning plate 5. When the guide frame 4 is rotated to a vertical state, the locking pin 41 is inserted into the locking hole 51. The positioning plate 5 is connected to the trailer frame by bolts and nuts. The bolts pass through the positioning plate 5 and the rear trailer frame 12 and are connected to the nuts. A support frame 6 is also fixed to the bottom of the guide frame 4. The support frame 6 is vertically arranged with the guide frame 4. A reinforcing rod 7 is also fixed to the support frame 6. The two ends of the reinforcing rod 7 are respectively fixed to the support frame 6 and the guide frame 4 to form a triangular reinforcement structure.

[0041] The implementation principle of an excavator trailer in the embodiment of the present application is as follows: when the excavator needs to be put on the vehicle, the bolts and nuts are loosened, and the positioning plate 5 is removed, so that the locking pin 41 is disengaged from the locking hole 51. The guide frame 4 rotates to the ground at one end, at which time the wheels 13 are all in contact with the ground, and the support frame 6 is spaced apart from the ground. When the excavator cannot be driven up, the locking mechanism and the connecting assembly can be unlocked to separate the front frame 11 from the rear frame 12. Due to the weight of the excavator, the front end of the rear frame 12 is tilted (the rear wheels are in contact with the ground, and the front wheels are off the ground), and the support frame 6 is in contact with the ground. The front frame 11 is used to connect with the front of the vehicle.

[0042] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An excavator trailer, comprising a trailer frame and wheels (13) mounted on the trailer frame, characterized in that: A guide frame (4) is installed at the rear end of the trailer frame, one end of the guide frame (4) is hinged to the trailer frame, and the other end is a free end; a locking pin (41) is fixed on the guide frame (4), a positioning plate (5) is installed on the trailer frame, a locking hole (51) is opened on the positioning plate (5), and the locking pin (41) is inserted into the locking hole (51) when the guide frame (4) is rotated to a vertical position; and a hydraulic rod (8) is also included, one end of the hydraulic rod (8) is hinged to the trailer frame, and the other end is hinged to the guide frame (4).

2. The excavator trailer according to claim 1, characterized in that: The positioning plate (5) is connected to the trailer frame via bolts and nuts, and the bolts pass through the positioning plate (5) and the trailer frame and are connected to the nuts.

3. The excavator trailer according to claim 1, characterized in that: The trailer frame comprises a front frame (11) and a rear frame (12), the wheel (13) is mounted on the rear frame (12), a portion of the front frame (11) is located below the rear frame (12), one end of the front frame (11) located below the rear frame (12) is hinged to the rear frame (12), and the front frame (11) and the rear frame (12) are locked and connected via a locking mechanism.

4. The excavator trailer according to claim 3, characterized in that: The locking mechanism comprises a mounting seat (2) fixed on the front frame (11), a latch (21) inserted on the mounting seat (2), and a spring (22) for inserting the latch (21) in the direction of the rear frame (12); and a socket corresponding to the latch (21) is provided on the rear frame (12).

5. The excavator trailer according to claim 3, characterized in that: The locking mechanisms are symmetrically arranged in two groups.

6. The excavator trailer according to claim 3, characterized in that: The front frame (11) is also hinged with a handle (31), the handle (31) is hinged with a connecting buckle (32), the rotation axis of the connecting buckle (32) and the handle (31) is parallel to the rotation axis of the handle (31) and the front frame (11) and is spaced apart, and the rear frame (12) is fixed with a connecting hook (33).

7. The excavator trailer according to claim 3, characterized in that: An auxiliary wheel (92) is installed on the front frame (11).

8. The excavator trailer according to claim 1, characterized in that: A support frame (6) is fixed to the bottom of the guide frame (4).

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