A foldable storage trailer frame

Abstract

The utility model discloses a folding and storage trailer frame, including horizontal bearing part, vertical limit part and setting the roller on the bearing part and setting the pull rod on the limit part, and the limit part is hinged on the bearing part, and the pull rod is hinged on the limit part, the bearing part is equipped with the hinge seat of the limit part rotation angle, the pull rod is equipped with the elastic telescopic link, and the limit part is equipped with the positioning hole, and the elastic telescopic link can protrude the pull rod and the positioning hole cooperation laterally, and the pull rod is equipped with the drive assembly that can drive the elastic telescopic link retraction. When the trailer frame is idle, or, the trailer frame itself is used as the transportation object, the pull rod and the limit part can be folded on the horizontal bearing part, and the occupied space of the trailer frame is saved. The trailer frame can transport the energy storage battery outdoors, and the load capacity reaches 200KG.

Description

Technical Field

[0001] This utility model relates to transportation vehicles, specifically to a battery storage trailer frame. Background Technology

[0002] A trailer frame for transporting energy storage batteries includes a horizontal load-bearing section and a vertical limiting section. The object to be transported is located on the load-bearing section and limited by the limiting section. The load-bearing section is equipped with rollers, and the limiting section is equipped with a pull rod. When the operator tilts the trailer frame, it acts on the pull rod, driving the trailer frame to move and achieve the transportation purpose.

[0003] For ease of operation, the pull rod has a certain height. When not in use, or when the trailer itself is used for transportation, the presence of the pull rod and limiting parts increases the space occupied by the trailer. Utility Model Content

[0004] The technical problem solved by this utility model is that when the trailer frame is idle, or when the trailer frame itself is used as a transport object, the presence of the tie rod and the limiting part increases the space occupied by the trailer frame.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a foldable trailer rack, including a horizontal supporting part, a vertical limiting part, and rollers disposed on the supporting part and a pull rod disposed on the limiting part. The limiting part is hinged to the supporting part, and the pull rod is hinged to the limiting part. The supporting part is provided with a hinge seat that limits the rotation angle of the limiting part. The pull rod is provided with an elastic telescopic rod, and the limiting part is provided with a positioning hole. The elastic telescopic rod can protrude laterally and cooperate with the positioning hole. The pull rod is provided with a drive component that can drive the elastic telescopic rod to retract.

[0006] When using the trailer frame, rotate the limiting part upwards until it abuts against the hinge seat and is in an upright position. Rotate the pull rod relative to the limiting part until the elastic telescopic rod aligns with the positioning hole and inserts into it, placing the pull rod in an upright position. At this point, the trailer frame is in use.

[0007] When folding up the trailer frame, activate the drive assembly to retract the elastic telescopic rod, disengaging it from the positioning hole. Rotate the pull rod to bring it closer to the limiting part. Then, rotate the limiting part in the opposite direction to lower it, bringing it closer to the load-bearing part. The load-bearing part then causes the pull rod to lower as well. Thus, the limiting part and pull rod lie on the load-bearing part, and the trailer frame is in a folded state.

[0008] The elastic telescopic rod is movably fitted within a fixed cylinder, which is fixedly mounted on the pull rod. The drive assembly includes a drive component fixedly mounted on the elastic telescopic rod and a rotating cylinder movably fitted onto the fixed cylinder. The fixed cylinder has a helical groove, and the rotating cylinder has a strip groove. The drive component passes through the helical groove and the strip groove. When the operator rotates the rotating cylinder, the strip groove drives the drive component to rotate. The drive component rotates along the helical groove, causing the elastic telescopic rod to rotate helically. The elastic telescopic rod then retracts into the fixed cylinder and disengages from the positioning hole.

[0009] The fixed cylinder is equipped with a telescopic spring, and elastic telescopic rods are located at both ends of the fixed cylinder. The telescopic spring is situated between the opposite ends of the two elastic telescopic rods. Under the elastic force of the telescopic spring, the two elastic telescopic rods tend to protrude from the fixed cylinder. However, because the driving component is fitted into the spiral groove and the strip groove, the tendency of the elastic telescopic rods to protrude from the fixed cylinder is limited.

[0010] The fixed cylindrical component has two helical grooves with opposite directions of rotation; the rotating cylindrical component has two strip grooves, which are used in conjunction with the two helical grooves. The operator rotates the rotating cylindrical component, using the two strip grooves to simultaneously drive two driving components to move along their respective helical grooves. Each driving component drives a corresponding elastic telescopic rod to rotate.

[0011] As an improvement, the limiting part is fixedly provided with a pull rod limiting piece. When the pull rod is rotated to abut against the pull rod limiting piece, the elastic telescopic rod is aligned with the positioning hole.

[0012] Alternatively, the positioning hole is provided on the positioning member, and the positioning member is fixedly installed on the limiting part.

[0013] A foot pedal is provided between the hinged seats of the load-bearing section. The operator can easily tilt the trailer frame by holding the lever and stepping on the foot pedal.

[0014] A large roller is provided on the side of the load-bearing part that is close to the limit part, and a swivel wheel is provided on the side of the load-bearing part that is far away from the limit part.

[0015] Technical effects of this utility model:

[0016] First, when the trailer frame is not in use, or when the trailer frame itself is used for transportation, the tie rods and limiting parts can be folded onto the horizontal load-bearing part, saving the space occupied by the trailer frame;

[0017] Second, the elastic telescopic rod is driven by rotation, making it easy to operate;

[0018] Third, the pull rod is positioned by using an elastic telescopic rod in conjunction with the positioning hole. Since the elastic telescopic rod can penetrate deep into the positioning hole, the positioning of the pull rod is stable.

[0019] Fourth, the combination of large rollers and swivel casters makes it easy for the trailer frame to move when tilted and turn when upright;

[0020] Fifth, this utility model can transport energy storage batteries outdoors with a load capacity of up to 200KG. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of a trailer frame;

[0023] Figure 2 A diagram illustrating the storage of the rear trailer rack;

[0024] Figure 3 for Figure 1 A diagram from another perspective;

[0025] Figure 4 This is a schematic diagram of lever 30;

[0026] Figure 5 for Figure 4 A magnified view of a portion of the image, in which the rotating cylinder 42 is hidden.

[0027] Figure 6 for Figure 5 Exploded view.

[0028] Explanation of symbols in the diagram:

[0029] 10. Load-bearing component; 11. Hinge mount; 12. Foot pedal; 13. Large casters; 14. Casters;

[0030] 20. Limiting part; 21. Positioning hole; 22. Pull rod limiting piece; 23. Positioning component;

[0031] 30. Tie rod; 31. Elastic telescopic rod; 32. Fixed cylinder; 320. Spiral groove; 33. Telescopic spring;

[0032] 40. Drive assembly; 41. Drive component; 42. Rotating cylinder; 420. Slot. Detailed Implementation

[0033] like Figure 1 , Figure 2A foldable trailer rack includes a horizontal support portion 10, a vertical limiting portion 20, and rollers disposed on the support portion and a pull rod 30 disposed on the limiting portion. The limiting portion is hinged to the support portion, and the pull rod is hinged to the limiting portion. The support portion is provided with a hinge seat 11 that limits the rotation angle of the limiting portion. The pull rod is provided with an elastic telescopic rod 31, and the limiting portion is provided with a positioning hole 21. The elastic telescopic rod can protrude laterally and cooperate with the positioning hole. The pull rod is provided with a drive assembly 40 that can drive the elastic telescopic rod to retract.

[0034] like Figures 4 to 6 The elastic telescopic rod 31 is movably fitted in the fixed cylinder 32, which is fixedly mounted on the pull rod 30. The drive assembly 40 includes a drive component 41 fixedly mounted on the elastic telescopic rod and a rotating cylinder 42 movably sleeved on the fixed cylinder. The fixed cylinder is provided with a spiral groove 320, and the rotating cylinder is provided with a strip groove 420. The drive component passes through the spiral groove and the strip groove.

[0035] The fixed cylinder 32 is provided with a telescopic spring 33, and elastic telescopic rods 31 are provided at both ends of the fixed cylinder. The telescopic spring is located between the opposite ends of the two elastic telescopic rods. Under the elastic force of the telescopic spring, the two elastic telescopic rods tend to protrude from the fixed cylinder.

[0036] The fixed cylinder 32 has two spiral grooves 320, and the two spiral grooves rotate in opposite directions; the rotating cylinder 42 has two strip grooves 420, which are used in conjunction with the two spiral grooves respectively.

[0037] like Figure 3 The limiting part 20 is fixedly provided with a pull rod limiting piece 22. When the pull rod 30 is rotated to abut against the pull rod limiting piece, the elastic telescopic rod 31 is aligned with the positioning hole 21.

[0038] like Figure 2 The positioning hole 21 is provided on the positioning member 23, and the positioning member is fixedly installed on the limiting part 20.

[0039] like Figure 1 A foot pedal 12 is provided between the hinge seats 11 of the load-bearing part 10.

[0040] A large roller 13 is provided on the side of the load-bearing part 10 that is close to the limiting part 20, and a caster wheel 14 is provided on the side of the load-bearing part that is far away from the limiting part.

[0041] When using the trailer frame, rotate the limiting part upwards until it abuts against the hinge seat and is in an upright position. Rotate the pull rod relative to the limiting part until the elastic telescopic rod aligns with the positioning hole and inserts into it, placing the pull rod in an upright position. At this point, the trailer frame is in use. (Refer to...) Figure 1 , Figure 3 .

[0042] When folding up the trailer frame, activate the drive assembly 40 to retract the elastic telescopic rod 31, disengaging it from the positioning hole 21. Rotate the pull rod 30 to bring it closer to the limiting part 20. Then, rotate the limiting part in the opposite direction to make it lie down, bringing it closer to the supporting part 20. The supporting part then causes the pull rod 30 to lie down as well. Thus, the limiting part 20 and the pull rod 30 lie down on the supporting part, and the trailer frame is in a folded state. (Refer to...) Figure 2 .

[0043] The operator rotates the rotating cylinder 42, and the strip groove 420 drives the driving component 41 to rotate. The driving component rotates along the spiral groove 320, which drives the elastic telescopic rod 31 to rotate spirally. The elastic telescopic rod retracts into the fixed cylinder 32 and disengages from the positioning hole 21.

[0044] The operator rotates the rotating cylinder 42, using the two strip grooves 420 to simultaneously drive the two driving members 41 to move along the corresponding spiral grooves 320, and each driving member 41 drives the corresponding elastic telescopic rod 31 to rotate.

[0045] The operator can easily tilt the trailer frame by holding the lever 30 and stepping on the foot pedal 12.

[0046] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A foldable trailer rack, comprising a horizontal support portion (10), a vertical limiting portion (20), and rollers disposed on the support portion and a pull rod (30) disposed on the limiting portion, characterized in that: The limiting part is hinged to the load-bearing part, and the tie rod is hinged to the limiting part; The bearing part is provided with a hinge seat (11) to limit the rotation angle of the limiting part; The pull rod is provided with an elastic telescopic rod (31), and the limiting part is provided with a positioning hole (21). The elastic telescopic rod can protrude laterally and cooperate with the positioning hole. The pull rod is provided with a drive component (40) that can drive the elastic telescopic rod to retract.

2. The foldable trailer rack as described in claim 1, characterized in that: The elastic telescopic rod (31) is movably fitted in the fixed cylinder (32), and the fixed cylinder is fixedly mounted on the pull rod (30). The drive assembly (40) includes a drive member (41) fixedly mounted on the elastic telescopic rod and a rotating cylinder (42) movably sleeved on the fixed cylinder. The fixed cylinder is provided with a spiral groove (320), and the rotating cylinder is provided with a strip groove (420). The drive member passes through the spiral groove and the strip groove.

3. The foldable trailer rack as described in claim 2, characterized in that: The fixed cylinder (32) is provided with a telescopic spring (33), and elastic telescopic rods (31) are provided at both ends of the fixed cylinder. The telescopic spring is located between the opposite ends of the two elastic telescopic rods. Under the elastic force of the telescopic spring, the two elastic telescopic rods tend to protrude from the fixed cylinder.

4. The foldable trailer rack as described in claim 3, characterized in that: The fixed cylinder (32) has two spiral grooves (320), and the two spiral grooves have opposite directions of rotation; the rotating cylinder (42) has two strip grooves (420), which are used in conjunction with the two spiral grooves respectively.

5. The foldable trailer rack as described in claim 1, characterized in that: The limiting part (20) is fixedly provided with a pull rod limiting piece (22). When the pull rod (30) rotates to abut against the pull rod limiting piece, the elastic telescopic rod (31) aligns with the positioning hole (21).

6. The foldable trailer rack as described in claim 1, characterized in that: The positioning hole (21) is provided on the positioning member (23), and the positioning member is fixedly installed on the limiting part (20).

7. The foldable trailer rack as described in claim 1, characterized in that: A foot pedal (12) is provided between the hinge seats (11) of the load-bearing part (10).

8. The foldable trailer rack as described in claim 1, characterized in that: A large roller (13) is provided on the side of the load-bearing part (10) close to the limiting part (20), and a caster wheel (14) is provided on the side of the load-bearing part away from the limiting part.

Images