Frame with tail arc-shaped track

By designing a chassis with a rear curved track, and utilizing a sliding loading/unloading assembly and a damper for cushioning, the problem of inconvenient loading and unloading of existing roof racks has been solved, enabling fast and safe loading and unloading of goods and roof width adjustment to adapt to different vehicle models.

CN223764350UActive Publication Date: 2026-01-06ANHUI BOXING MASCH CO LTD
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Patent Information

Application Number
CN202520448712.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-01-06
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Existing roof racks are inconvenient and unsafe for loading and unloading large items, especially for items such as tents, where loading and unloading operations are complicated.

Method used

A chassis with a rear arc-shaped track was designed, including a fixed cylinder, a movable slide rail, an arc-shaped slide rail, a damper, and an adjustment assembly. Through the design of the sliding unloading assembly and the combination of pallets, a fast and safe loading and unloading process is achieved, and the damper buffers the impact force and adapts to the adjustment of different vehicle roof widths.

Benefits of technology

It enables fast and safe loading and unloading of large items such as tents, adapts to the roof width of different vehicle models, and improves operability and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a frame with a tail arc-shaped track, and relates to the technical field of roof racks. The device comprises fixed cylinders and further comprises movable sliding rails arranged at the two ends between the tops of the fixed cylinders, and brackets are arranged at the tops of the movable sliding rails. The sliding taking and unloading assembly is arranged at the top of the fixing cylinder, when objects such as tents and bags are taken and unloaded, the arc-shaped sliding rails are aligned with the movable sliding rails respectively, meanwhile, the combined clamping plates are inserted into the connecting buckles and limited through the limiting clamping strips, and the purpose that the arc-shaped sliding rails are stably installed on one sides of the movable sliding rails can be achieved; after the fixed rope is unbound, the bracket slides towards one side of the arc-shaped sliding rail until the bracket descends along the arc-shaped sliding rail, meanwhile, the movable guide wheels roll in the movable sliding rail and the arc-shaped sliding rail to guide and stabilize the bracket, and the damper is used for damping and buffering impact force generated when the bracket descends; therefore, the purpose that the tent can be conveniently, rapidly, safely and stably taken out of the roof rack is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of vehicle roof rack technology, and in particular relates to a vehicle frame with a rear arc-shaped track. Background Technology

[0002] A roof rack is a bracket installed on the roof of a vehicle to secure and carry large items that cannot fit in the trunk. It is commonly used for outdoor activities such as off-roading and camping to load large items such as tents, thus saving interior space while allowing people to rest outdoors and increasing the enjoyment of outdoor activities.

[0003] A roof rack, as disclosed in utility model patent CN215361177U, includes longitudinal bars, crossbeams, and connecting devices. The longitudinal bars have sliding channels along their length on their side walls, and the sliding channels have spaced-apart holes along their length. The connecting devices include connecting ends, ball bearings, springs, and bolts. The connecting ends are respectively fitted onto both ends of the crossbeams, each with a built-in mounting cavity. The outer wall of the connecting ends has an outlet corresponding to the mounting cavity, and through holes are located on both sides of the mounting cavity. This allows for adjustment of the crossbeam position and locking between the crossbeam and longitudinal bars, meeting user needs. However, in practice, this roof rack is installed on the top of the vehicle, and it is inconvenient to remove or unload items such as tents mounted on it. This presents a technical problem: it cannot easily, quickly, safely, and stably remove large items such as tents mounted on the roof rack. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a vehicle frame with a rear arc-shaped track, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a vehicle frame with a rear arc-shaped track, comprising a fixed cylinder, and further comprising: movable slide rails provided at both ends between the top of the fixed cylinder, a bracket provided at the top of the movable slide rails, a latch provided at the outer end of the bottom of the fixed cylinder, an arc-shaped slide rail provided on one side of the movable slide rails, a damper provided at the bottom end of the arc-shaped slide rails, a slide seat provided at one end of the bottom of the bracket, a movable guide wheel provided on one side of the slide seat, connecting buckles provided on one side of both ends of the movable slide rails, a combined locking plate provided at the top of both ends of the arc-shaped slide rails, a limiting locking strip provided at one end of the outer side of the combined locking plate, and an adjustment assembly provided inside the fixed cylinder.

[0007] Furthermore, the arc-shaped slide rails are parallel to each other, and the slide block and the movable guide wheel are fitted into the inner side of the movable slide rail, allowing the slide block and the movable guide wheel to move within the inner side of the movable slide rail.

[0008] Furthermore, the combined card plate is L-shaped and is inserted into the inside of the connecting buckle.

[0009] Furthermore, the fixed cylinders are parallel to each other, and the latches are symmetrically arranged at the bottom of the fixed cylinders.

[0010] Furthermore, the adjusting assembly includes a telescopic adjusting rod, which is inserted into the interior of the fixed cylinder. A pre-reserved groove is provided at the top end of the interior of the fixed cylinder. Connecting studs are provided at both ends of the top of the telescopic adjusting rod. The top end of the connecting studs penetrates the interior of the pre-reserved groove. A fastening nut is provided on the outside of the connecting studs at the top of the fixed cylinder.

[0011] Furthermore, the connecting studs are symmetrically arranged at the top of the telescopic adjustment rod, the diameter of the connecting studs is smaller than the width of the reserved groove, and the connecting studs can move relatively within the reserved groove.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model features a sliding unloading assembly at the top of the fixed cylinder. When unloading items such as tent bags from the roof rack, the arc-shaped slide rail is aligned with the moving slide rail, and the combination plate is inserted into the connecting buckle. The assembly is then secured by the limiting strip, thus achieving stable installation of the arc-shaped slide rail on one side of the moving slide rail. After untying the fixing rope, the bracket is slid towards the arc-shaped slide rail until it descends along the arc-shaped slide rail. Simultaneously, the moving guide wheel rolls within the moving and arc-shaped slide rails to guide and stabilize the bracket. A damper is used to dampen and buffer the impact force generated when the bracket carrying the tent bag descends. This allows for convenient, quick, safe, and stable unloading of tents from the roof rack. The arc-shaped slide rail can then be disassembled by pressing the combination plate inward and pulling out the connecting buckle. The design is highly operable.

[0014] 2. This utility model has an adjustment component inside the fixed cylinder. When in use, the spacing of the fixed cylinder sleeved on the outside of the telescopic adjustment rod can be adjusted by loosening the fastening nut. At the same time, the connecting stud moves and stabilizes the fixed cylinder in the reserved groove. After adjusting the fixed cylinder to the appropriate spacing, tightening the fastening nut can secure the connection between the fixed cylinder and the telescopic adjustment rod. This achieves the purpose of conveniently and quickly adjusting the width of the frame to suit the roof width of different vehicles, making the frame suitable for more vehicle models and more practical. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point B.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Fixed cylinder; 2. Telescopic adjustment rod; 3. Sliding slide rail; 4. Lock; 5. Bracket; 6. Arc-shaped slide rail; 7. Connecting buckle; 8. Damper; 9. Reserved groove; 10. Fastening nut; 11. Connecting stud; 12. Limiting strip; 13. Combination plate; 14. Moving guide wheel; 15. Slide base. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4As shown, this utility model is a vehicle frame with a rear arc-shaped track, including a fixed cylinder 1, and further including: movable slide rails 3 are provided at both ends between the top of the fixed cylinder 1, a bracket 5 is provided at the top of the movable slide rail 3, a buckle 4 is provided at the outer end of the bottom of the fixed cylinder 1, the fixed cylinders 1 are parallel to each other, the buckles 4 are symmetrically arranged at the bottom of the fixed cylinder 1, an arc-shaped slide rail 6 is provided on one side of the movable slide rail 3, a connecting buckle 7 is provided on one side of both ends of the movable slide rail 3, and an "L"-shaped combination clamping plate 13 is provided at the top of both ends of the arc-shaped slide rail 6. The combination clamping plate 13 is inserted into the inner side of the connecting buckle 7, and a limiting strip 12 is provided at one end of the outer side of the combination clamping plate 13. By inserting the combination clamping plate 13 into the interior of the connecting buckle 7 and limiting it by the limiting strip 12, the arc-shaped slide rail 6 can be stably installed on one side of the movable slide rail 3. The curved slide rails 6 are parallel to each other. A slide seat 15 is provided at one end of the bottom of the bracket 5. A movable guide wheel 14 is provided on one side of the slide seat 15. The slide seat 15 and the movable guide wheel 14 are embedded in the inside of the movable slide rail 3. The slide seat 15 and the movable guide wheel 14 can move inside the movable slide rail 3. After untying the fixing rope, the bracket 5 is slid to one side of the curved slide rail 6 until it is lowered along the curved slide rail 6. At the same time, the movable guide wheel 14 rolls inside the movable slide rail 3 and the curved slide rail 6 to guide and stabilize the bracket 5. A damper 8 is provided at the bottom of the inside of the curved slide rail 6. The damper 8 is used to dampen and buffer the impact force generated when the bracket 5 loaded with the tent bag is lowered, thereby realizing the purpose of conveniently, quickly and safely and stably taking the tent off the roof rack. Then, the curved slide rail 6 can be disassembled by pressing the combination plate 13 inward and pulling out the connecting buckle 7. It is highly operable.

[0024] When unloading the tent mounted on the roof rack, align the curved slide rail 6 with the movable slide rail 3 respectively, insert the combination plate 13 into the inside of the connecting buckle 7, and limit it with the limiting strip 12. The curved slide rail 6 can then be stably installed on one side of the movable slide rail 3. After untying the tent fixing ropes, slide the bracket 5 to one side of the curved slide rail 6 until it descends along the curved slide rail 6. At the same time, the movable guide wheel 14 rolls in the movable slide rail 3 and the curved slide rail 6 to guide and stabilize the bracket 5. The damper 8 is used to dampen and buffer the impact force generated when the bracket 5 loaded with the tent bag descends, so that the tent can be quickly and safely unloaded.

[0025] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, an adjustment assembly is provided inside the fixed cylinder 1. The adjustment assembly includes a telescopic adjustment rod 2, which is inserted into the interior of the fixed cylinder 1. A pre-reserved groove 9 is provided at the top of the interior of the fixed cylinder 1. Connecting studs 11 are provided at both ends of the top of the telescopic adjustment rod 2. The connecting studs 11 are symmetrically arranged at the top of the telescopic adjustment rod 2. The top of the connecting stud 11 penetrates the interior of the pre-reserved groove 9. The diameter of the connecting stud 11 is smaller than the inner width of the pre-reserved groove 9. The connecting studs 11 can move relative to each other within the pre-reserved groove 9. The width of the roof rack can be adjusted by adjusting the spacing of the fixed cylinders 1 sleeved on the outside of the telescopic adjustment rod 2. A fastening nut 10 is provided on the outside of the connecting studs 11 at the top of the fixed cylinder 1. After adjusting the fixed cylinder 1 to a suitable spacing, tightening the fastening nut 10 can secure the connection between the fixed cylinder 1 and the telescopic adjustment rod 2. This achieves the purpose of conveniently and quickly adjusting the width of the frame to suit the roof width of different vehicles, making the frame suitable for more vehicle models and more practical.

[0026] Working principle: When using the frame, first loosen the fastening nut 10 to adjust the spacing of the fixing cylinder 1 sleeved on the outside of the telescopic adjustment rod 2 to suit the width of the vehicle roof where the frame needs to be installed. At the same time, the connecting stud 11 moves and stabilizes the fixing cylinder 1 within the reserved slot 9. After adjusting the fixing cylinder 1 to the appropriate spacing, tighten the fastening nut 10 to secure the connection between the fixing cylinder 1 and the telescopic adjustment rod 2. Then, position the frame on the roof of the vehicle and lock it in place using the latch 4. Load and tie large items such as tents onto the frame. When it is necessary to remove or unload the tent loaded on the roof frame, align the arc-shaped slide rail 6 with the moving slide rail 3 respectively. Simultaneously, insert the combination plate 13 into the inside of the connecting buckle 7 and limit it with the limiting strip 12. This allows the arc-shaped slide rail 6 to be stably installed on one side of the moving slide rail 3. After untying the tent fixing ropes, slide the bracket 5 to one side of the arc-shaped slide rail 6 until it descends along the arc-shaped slide rail 6. At the same time, the moving guide wheel 14 rolls in the moving slide rail 3 and the arc-shaped slide rail 6 to guide and stabilize the bracket 5. The damper 8 is used to dampen and buffer the impact force generated when the bracket 5 carrying the tent bag descends. This allows for quick and safe unloading of the tent. After unloading the tent, press the combination plate 13 inward and pull out the connecting buckle 7 to disassemble the arc-shaped slide rail 6.

[0027] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A carriage with a tail arc track, comprising a fixing cylinder (1), characterized in that, Also include: The both ends between the top of the fixed cylinder (1) are provided with moving slide rails (3), the top of the moving slide rails (3) is provided with a bracket (5), the outer end of the bottom of the fixed cylinder (1) is provided with a lock buckle (4), one side of the moving slide rails (3) is provided with an arc-shaped slide rail (6), the bottom end inside the arc-shaped slide rail (6) is provided with a damper (8), one end of the bottom of the bracket (5) is provided with a sliding seat (15), one side of the sliding seat (15) is provided with a moving guide wheel (14), one side of the both ends of the moving slide rails (3) is provided with a connecting buckle (7), the top of the both ends of the arc-shaped slide rail (6) is provided with a combined clamping plate (13), one end of the outer side of the combined clamping plate (13) is provided with a limiting clamping strip (12), the inside of the fixed cylinder (1) is provided with an adjusting assembly.

2. A vehicle frame with a tail arc track according to claim 1, characterized in that, The arc-shaped slide rails (6) are parallel to each other, the sliding seat (15) and the moving guide wheel (14) are embedded into the inner side of the moving slide rails (3), and the sliding seat (15) and the moving guide wheel (14) can move in the inner side of the moving slide rails (3).

3. The frame with tail arc track according to claim 1, characterized in that, The combined clamping plate (13) is in the shape of "L", and the combined clamping plate (13) is inserted into the inner side of the connecting buckle (7).

4. The frame with tail arc track according to claim 1, characterized in that, The fixed cylinders (1) are parallel to each other, and the lock buckles (4) are symmetrically arranged at the bottom of the fixed cylinders (1).

5. The frame with tail arc track according to claim 1, characterized in that, The adjusting assembly comprises a telescopic adjusting rod (2), the telescopic adjusting rod (2) is inserted between the inside of the fixed cylinder (1), the top end of the inside of the fixed cylinder (1) is provided with a reserved slot (9), the both ends of the top of the telescopic adjusting rod (2) are provided with connecting studs (11), the top end of the connecting studs (11) penetrates the inside of the reserved slot (9), and the connecting studs (11) outside the top of the fixed cylinder (1) are provided with fastening nuts (10).

6. A vehicle frame with a tail arc track according to claim 5, characterized in that, The connecting studs (11) are symmetrically arranged on the top of the telescopic adjusting rod (2), the diameter of the connecting studs (11) is smaller than the width of the reserved slot (9), and the connecting studs (11) can move relatively in the reserved slot (9).

Citation Information

Patent Citations

  • Roof rack

    CN215361177U