Automobile luggage support with adjusting and limiting function

Abstract

The utility model relates to the technical field of automobile luggage rack, disclose a kind of automobile luggage support with adjusting limiting function, including underframe and support rod, the top of support rod is fixedly connected with top frame, the side surface of underframe is fixedly connected with cross bar, the surface of cross bar is provided with adjusting device, adjusting device includes adjusting plate, arc clip, annular sleeve, bearing frame, telescopic link, connecting seat, steering seat and rotating rod. The automobile luggage support with adjusting limiting function, multidimensional flexible adjustment is realized by adjusting device, annular sleeve is adjusted adjusting plate horizontal position along cross bar sliding, steering seat and rotating rod cooperation can realize adjusting plate 0 °-90 ° angle overturn, telescopic link can change support length by telescoping, the accurate adaptation of luggage of different sizes, shapes in three-dimensional space by the three synergies adjusting plate, solve the limitation that traditional luggage support supporting range is fixed, only can place the specific specification luggage, improve the flexibility and versatility of support use.

Description

Technical Field

[0001] This utility model belongs to the field of automobile luggage rack technology, specifically, it relates to an automobile luggage rack with adjustable limit function. Background Technology

[0002] With the increasing popularity of car travel, the demand for car roof racks is growing. Whether for carrying large items during daily commutes or transporting camping equipment and suitcases during outdoor travel, roof racks have become an important automotive accessory. However, existing car roof racks have many problems that urgently need to be solved in actual use, making it difficult to meet users' diverse and high-safety needs.

[0003] First, they have poor adaptability and cannot be compatible with luggage of different sizes. Traditional luggage racks are mostly fixed structures with no adjustable support range or angle. They can only hold luggage of a matching size. For oversized suitcases or irregularly shaped outdoor equipment (such as tents and backpacks), they often cannot be supported stably or placed at all. Users need to purchase special racks, which increases the cost of use and reduces the convenience of travel.

[0004] Secondly, insufficient positioning and stability pose significant safety hazards for luggage transportation. Some luggage racks are secured only by simple buckles or straps. During vehicle operation, road bumps and centrifugal forces during turns can easily cause the racks to shift and luggage to slide. This can lead to damage to the luggage and even cause road accidents due to luggage falling off. In addition, most racks have a rigid contact connection with the car roof, lacking an effective shock absorption structure. Long-term vibration can easily cause wear and tear on both the rack and the car roof, affecting the car's appearance and the lifespan of the rack.

[0005] In summary, existing car roof racks have significant shortcomings in terms of adjustability, stability, environmental adaptability, and durability, failing to meet users' growing demands for diverse and high-safety features. Therefore, developing a car roof rack with multi-dimensional adjustability, reliable limiting, strong environmental adaptability, and durability has significant practical importance and market value. Utility Model Content

[0006] The purpose of this invention is to provide a car luggage rack with adjustable limiting function to solve the problems mentioned in the background art.

[0007] A car luggage rack with adjustable limit function includes a base frame and a support rod fixedly connected to the top of the base frame. A top frame is fixedly connected to the top of the support rod, and a crossbar is fixedly connected to the side of the base frame. An adjustment device is provided on the surface of the crossbar.

[0008] The adjusting device includes an adjusting plate, an arc-shaped clamp, an annular sleeve, a load-bearing frame, a telescopic rod, a connecting seat, a steering seat, and a rotating rod. The arc-shaped clamp is fixedly connected to the back of the adjusting plate. The annular sleeve is fitted onto the outer surface of the crossbar. The load-bearing frame is fixedly connected to the top of the annular sleeve. The telescopic rod is installed inside the load-bearing frame. The connecting seat is fixedly connected to the end of the telescopic rod away from the load-bearing frame. The rotating rod is rotatably connected to the inside of the connecting seat. The steering seat is fixedly connected to both ends of the outer surface of the rotating rod.

[0009] In a preferred embodiment of this utility model, the arc-shaped clamp is snapped onto the outer surface of the top frame, the outer surface of the steering seat is fixedly connected to the back of the adjusting plate, and the connecting seat has an arc-shaped chamfer on the side near the adjusting plate.

[0010] In a preferred embodiment of this utility model, a heating wire is fixedly installed on the outer surface of the load-bearing frame, and a wire hole is provided on the side of the load-bearing frame. The heating wire is connected to the car power cable through a wire passing through the wire hole.

[0011] In a preferred embodiment of this utility model, a positioning post is fixedly connected to the top of the crossbar near the center, and a positioning plate is fixedly connected to the top of the adjusting plate. The surface of the positioning plate has a positioning hole with a diameter larger than that of the positioning post.

[0012] In a preferred embodiment of this utility model, a buffer column is fixedly connected to the bottom of the crossbar, and the bottom of the buffer column is fixedly connected to the car roof.

[0013] In a preferred embodiment of the present invention, a clamping seat is fixedly connected to the bottom of the base frame, and a clamping plate is fixedly connected to the bottom of the clamping seat. A limit plate is connected to the outer surface of the clamping plate by locking bolts.

[0014] In a preferred embodiment of this utility model, the surface of the adjusting plate is evenly provided with a plurality of anti-slip holes, and the inner edge of the anti-slip hole is rounded. Wear-resistant bushings are fitted on the outer sides of both ends of the rotating rod, and the wear-resistant bushings are made of polytetrafluoroethylene.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This car luggage rack with adjustable limit function can achieve multi-dimensional flexible adjustment through the adjustment device. The ring sleeve can slide along the crossbar to adjust the lateral position of the adjustment plate. The steering seat and the rotating rod can cooperate to realize the 0°-90° angle flip of the adjustment plate. The telescopic rod can change the support length. The three work together to make the adjustment plate accurately adapt to luggage of different sizes and shapes in three-dimensional space, which solves the limitation of the traditional luggage rack with fixed support range and can only place luggage of specific size, and improves the flexibility and versatility of the rack.

[0017] 2. This car luggage rack with adjustable limit function restricts the displacement of the positioning adjustment plate by cooperating with the positioning post and positioning plate, fixes the adjustment plate in the non-working state with the arc-shaped clamp, and locks the length of the telescopic rod with the elastic buckle, forming a multi-limit structure to prevent the adjustment plate from shifting while the vehicle is in motion. The clamping seat plate and the limit plate are clamped to the car roof by locking bolts, increasing the contact friction and preventing the entire rack from sliding.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the overall structure of the car luggage rack of this utility model;

[0021] Figure 2 This is a schematic diagram of the unfolded state of the adjustment plate of this utility model;

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0024] Figure 5 This is a schematic diagram of the adjustment plate of this utility model in a flat state;

[0025] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C;

[0026] Figure 7 This is a schematic diagram of the clamping seat structure of this utility model.

[0027] In the diagram: 1. Base frame; 2. Support rod; 3. Top frame; 4. Crossbar; 5. Clamping seat; 501. Clamping plate; 502. Limiting plate; 503. Locking bolt; 6. Adjusting plate; 601. Positioning plate; 602. Arc clamp; 603. Ring sleeve; 604. Load-bearing frame; 605. Telescopic rod; 606. Connecting seat; 607. Steering seat; 608. Rotating rod; 609. Heating wire; 610. Threading hole; 611. Positioning post; 7. Buffer post. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] Example 1: As Figures 1 to 7 As shown, a car luggage rack with adjustable limiting function includes a base frame 1 and a support rod 2 fixedly connected to the top of the base frame 1. A top frame 3 is fixedly connected to the top of the support rod 2. A crossbar 4 is fixedly connected to the side of the base frame 1. A buffer post 7 is fixedly connected to the bottom of the crossbar 4. The bottom of the buffer post 7 is fixedly connected to the car roof. A clamping seat 5 is fixedly connected to the bottom of the base frame 1. A clamping plate 501 is fixedly connected to the bottom of the clamping seat 5. A limiting plate 502 is connected to the outer surface of the clamping plate 501 by locking bolts 503. The buffer post 7 must be perpendicular to the crossbar 4, with a verticality deviation of no more than 0.5°. The bottom of the buffer post 7 must be completely in contact with the surface of the car roof. If there is a gap, it can be adjusted by adding rubber pads to ensure that the buffer post 7 can bear force evenly.

[0030] The bracket, consisting of a base frame 1, support rods 2, and a top frame 3, forms the core support framework. The clamping seat 5 at the bottom of the base frame 1 is fixed to the car roof, transferring the overall weight of the bracket and luggage to the car body. Crossbars 4 connect to the side of the base frame 1, enhancing the lateral stability of the frame and providing a mounting base for the adjustment device. The buffer pillars 7 are made of elastic material, absorbing vibrations from road bumps during vehicle operation, reducing the impact on the bracket and luggage, and preventing wear caused by hard contact between the bracket and the car roof.

[0031] The surface of the crossbar 4 is equipped with an adjustment device, which includes an adjustment plate 6, an arc-shaped clamp 602, an annular sleeve 603, a load-bearing frame 604, a telescopic rod 605, a connecting seat 606, a steering seat 607, and a rotating rod 608. The arc-shaped clamp 602 is fixedly connected to the back of the adjustment plate 6. The annular sleeve 603 is fitted onto the outer surface of the crossbar 4. The load-bearing frame 604 is fixedly connected to the top of the annular sleeve 603. The telescopic rod 605 is installed inside the load-bearing frame 604. The connecting seat 606 is fixedly connected to the end of the telescopic rod 605 away from the load-bearing frame 604. The rotating rod 608 is rotatably connected to the inside of the connecting seat 606. The steering seat 607 is fixedly connected to both ends of the outer surface of the rotating rod 608. The adjustment plate 6 has several anti-slip holes evenly distributed on its surface, and the inner edges of the anti-slip holes are rounded. Wear-resistant bushings made of polytetrafluoroethylene are fitted on the outer sides of both ends of the rotating rod 608.

[0032] The arc-shaped clamp 602 is snapped onto the outer surface of the top frame 3. The outer surface of the steering seat 607 is fixedly connected to the back of the adjusting plate 6. The connecting seat 606 has an arc-shaped chamfer on the side near the adjusting plate 6. The top of the crossbar 4 is fixedly connected to the center position with a positioning post 611. The top of the adjusting plate 6 is fixedly connected to a positioning plate 601. The surface of the positioning plate 601 has a positioning hole with a diameter larger than that of the positioning post 611.

[0033] Overall bracket installation process: First, determine the appropriate installation location for the car roof. Align the clamping seat 5 at the bottom of the base frame 1 with the installation area, ensuring the clamping plate 501 at the bottom of the clamping seat 5 fits against the edge of the car roof. Then, place the limiting plate 502 outside the clamping plate 501, ensuring that the limiting plate 502 and the clamping plate 501 together clamp the car roof structure. Next, use locking bolts 503 to pass through the pre-drilled holes in the clamping plate 501 and the limiting plate 502, and gradually tighten the bolts until the clamping seat 5 is firmly fixed. At this point, the base frame 1 achieves initial connection with the car through the clamping seat 5. After fixing the base frame 1, check the position of the bottom buffer post 7 of the crossbar 4, ensuring that the bottom of the buffer post 7 is in close contact with the surface of the car roof. The buffer post 7 is made of elastic material, which can adapt to the slight curvature of the car roof through its own deformation, further enhancing the overall stability of the bracket and preventing the bracket from shifting due to vibration during vehicle operation. The clamping plate 501 and the limiting plate 502 of the clamping seat 5 form a clamping structure through the locking bolt 503, which increases the contact area and friction with the car roof and effectively prevents the bracket from sliding laterally. The adjusting plate 6 and the top frame 3 together form a load-bearing plane with multiple support points, which distributes the weight of the luggage and avoids excessive local stress that could cause the bracket to deform. The elastic deformation of the buffer column 7 can attenuate vibration energy and reduce the relative movement between the luggage and the bracket, further ensuring the stability and safety of the luggage during transportation.

[0034] When installing the clamping seat 5, ensure that the clamping surfaces of the clamping plate 501 and the limiting plate 502 are parallel to the edge of the car roof, with a deviation of no more than 1°. When tightening the locking bolt 503, use a torque wrench and control the torque value between 25-30 N·m to avoid insufficient torque leading to insecure fixing or excessive torque damaging the paint and components of the car roof.

[0035] In its initial state, the adjusting plate 6 is secured to the outer surface of the top frame 3 by the arc-shaped clamp 602. When it is necessary to unfold the adjusting plate 6, first remove the arc-shaped clamp 602 from the top frame 3, and then push the adjusting plate 6. Since the annular sleeve 603 is fitted onto the outer surface of the crossbar 4, the adjusting plate 6 can drive the annular sleeve 603 to move along the axis of the crossbar 4. At the same time, through the rotational cooperation between the steering seat 607 and the rotating rod 608, the adjusting plate 6 can achieve multi-angle flipping.

[0036] After the adjusting plate 6 is adjusted to the desired position, move the positioning plate 601 on top of the adjusting plate 6 so that the positioning hole on the surface of the positioning plate 601 fits into the positioning post 611 on top of the crossbar 4. The diameter of the positioning hole is larger than the diameter of the positioning post 611, which allows for slight adjustments while restricting the lateral and longitudinal displacement of the adjusting plate 6, thus completing the initial positioning.

[0037] Adjust the telescopic rod 605 inside the load-bearing frame 604 according to the size and placement requirements of the luggage. Pulling the telescopic rod 605 outward extends the support range of the adjusting plate 6; pushing the telescopic rod 605 inward shortens the support range. The telescopic rod 605 and the load-bearing frame 604 are fitted with a clearance fit, and an internal elastic buckle structure is provided. When the telescopic rod 605 is adjusted to the appropriate length, the buckle automatically engages with the positioning hole of the load-bearing frame 604 to fix the length. Place the luggage on the support plane formed by the top frame 3 and the adjusting plate 6. According to the shape and size of the luggage, fine-tune the position of the adjusting plate 6 and the length of the telescopic rod 605 again to ensure that the luggage is effectively supported on all sides. If there is a risk of the luggage sliding, the reserved holes on the surface of the adjusting plate 6 can be used with ropes or other tools to tie and secure the luggage, further improving the stability of the luggage during transportation.

[0038] Through the cooperation of the steering seat 607 and the rotating rod 608, the adjustment plate 6 can achieve an angle flip of 0°-90°. 0° is the flat position, and 90° is the vertical position, meeting the placement needs of luggage of different heights. During the flipping process, lithium-based grease is applied to the mating area between the steering seat 607 and the rotating rod 608, and it needs to be replenished every six months to ensure smooth rotation.

[0039] The positioning hole spacing of the telescopic rod 605 is 50-80mm. During adjustment, the positioning hole can be precisely selected according to the length of the luggage to achieve precise control of the support range of the adjustment plate 6. After the telescopic rod 605 is adjusted to the target position, it is necessary to manually pull the telescopic rod 605 to check whether the buckle is fully engaged in the positioning hole and ensure that there is no looseness.

[0040] The diameter of the positioning hole of the positioning plate 601 is 1-2 mm larger than that of the positioning post 611. After the positioning hole is fitted into the positioning post 611, an elastic retaining ring of model GB / T894.1-2017 can be installed on the top of the positioning post 611 to further limit the axial displacement of the positioning plate 601 and improve the positioning stability.

[0041] Both the base frame 1 and the top frame 3 are made of high-strength aluminum alloy, with a thickness of 3-5mm and a rectangular cross-section, measuring 50-80mm in length and 30-40mm in width. This material combines lightweight design with high load-bearing capacity, capable of supporting luggage weights of 80-120kg while preventing corrosion issues caused by long-term use. Both surfaces undergo anodizing treatment, with an oxide film thickness of 8-12μm, effectively improving wear resistance and corrosion resistance, making them suitable for complex outdoor environments.

[0042] Support rod 2 is a cylindrical structure with a diameter of 15-20mm. It is also made of aluminum alloy and is fixed to the base frame 1 and top frame 3 by welding. The welding is done with a fish scale welding process and the weld height is not less than 5mm to ensure the connection strength and prevent the weld from breaking due to excessive luggage weight.

[0043] The crossbar 4 is made of stainless steel, with a diameter of 20-25mm and a length adapted to the width of the car roof, typically 1200-1500mm. Its surface is galvanized with a zinc layer thickness of 10-15μm to enhance its resistance to rainwater corrosion and prevent rust from long-term exposure.

[0044] Adjustable plate 6 is made of ABS engineering plastic with a thickness of 8-10mm. The surface has anti-slip texture with a texture depth of 0.5-1mm and a spacing of 3-5mm, which can increase the friction with luggage and prevent luggage from sliding. The length of adjustable plate 6 is 300-500mm and the width is 200-300mm. The load-bearing capacity of a single adjustable plate is not less than 30kg.

[0045] The 605 telescopic rod consists of two layers of aluminum alloy tubing. The outer tubing has a diameter of 18-22mm, and the inner tubing has a diameter of 15-19mm. The two layers are fitted with a clearance to ensure smooth extension and retraction. The internal elastic buckle is made of spring steel with an elastic coefficient of 15-20N / mm, and can withstand a tensile force of 5-8kg to prevent buckle failure during use.

[0046] The ring sleeve 603 is made of wear-resistant nylon material, with an inner diameter that matches the diameter of the crossbar 4 and a wall thickness of 5-8mm. It has a polytetrafluoroethylene wear-resistant layer inside, which can reduce the coefficient of friction between the ring sleeve 603 and the crossbar 4, extend the service life, and reduce the noise during sliding.

[0047] Both the clamping plate 501 and the limiting plate 502 are made of Q235 cold-rolled steel plate with a thickness of 4-6mm and an epoxy resin coating on the surface, providing good rust resistance. The locking bolt 503 is an M8×30mm stainless steel bolt, used in conjunction with spring washers and flat washers. The spring washer has an elastic coefficient of 8-12N / mm, which can prevent the bolt from loosening due to vibration during vehicle operation.

[0048] Buffer pillar: Buffer pillar 7 is made of natural rubber, with a diameter of 30-40mm, a height of 20-30mm, a Shore hardness of 50-60HA, and a compression capacity of 30%-50% of its own height. It can absorb an impact force of 5-10N and effectively dampen vibrations during vehicle operation.

[0049] Example 2: Based on Example 1, a heating wire 609 is fixedly installed on the outer surface of the load-bearing frame 604, and a wire hole 610 is provided on the side of the load-bearing frame 604. The heating wire 609 is connected to the car power cable through a wire passing through the wire hole 610.

[0050] In cold, rainy, or snowy weather, if luggage surfaces are prone to icing or require insulation, the heating wire 609 can be powered by the car's power supply. A wire passes through the wiring hole 610 on the side of the support frame 604, connecting the heating wire 609 to the car's power cord. Once the power is on, the heating wire 609 heats up, and the heat is transferred to the support frame and adjustment plate 6, effectively preventing luggage from icing and avoiding any impact of low temperatures on the support structure.

[0051] Working principle: The lateral position of the adjusting plate 6 is adjusted by sliding the annular sleeve 603. The angle of the adjusting plate 6 is flipped by the rotating pair of the steering seat 607 and the rotating rod 608. The support length of the adjusting plate 6 is adjusted by the telescopic movement of the telescopic rod 605. The three work together to make the adjusting plate 6 flexibly adjustable in three-dimensional space to adapt to the placement needs of luggage of different sizes and shapes.

[0052] The positioning post 611 and the positioning plate 601 cooperate to achieve the initial positioning of the adjusting plate 6 by utilizing the gap between the hole and shaft, thus limiting its main displacement direction; the arc-shaped clamp 602 fixes the adjusting plate 6 to the top frame 3 when the adjusting plate 6 is not in operation, thus preventing the adjusting plate 6 from shaking; the elastic buckle structure of the telescopic rod 605 achieves length fixation through mechanical engagement, ensuring that the adjusted position is stable and reliable, and preventing the telescopic rod 605 from extending or retracting on its own due to vehicle vibration.

[0053] The heating wire 609 uses resistance heating. When the car power is turned on, the current passes through the heating wire 609 to generate Joule heat. Since the heating wire 609 is fixed to the outer surface of the load-bearing frame 604, the heat can be quickly transferred to the load-bearing frame and the adjustment plate 6 to form a local heating area. This area can not only prevent the luggage surface from freezing, avoiding the extra load on the frame caused by the increase in luggage weight and volume change after freezing, but also protect the metal structure of the frame in low-temperature environments, preventing its strength from decreasing due to low-temperature brittleness.

[0054] For sedans, since the roof curvature is relatively small, the standard installation procedure can be followed directly. For SUVs, if the roof curvature is large, a wedge-shaped rubber pad with a thickness of 2-5mm can be added to the bottom of the buffer pillar 7, and the height of the buffer pillar 7 can be adjusted to ensure that the crossbar 4 remains horizontal.

[0055] For vehicles without pre-drilled mounting holes for roof racks: 3M double-sided adhesive (model 3M5952) can be added to the bottom of the clamping seat 5. The double-sided adhesive should be 1-2mm thick and the width should be the same as the bottom of the clamping seat 5 to enhance the adhesion between the clamping seat 5 and the car roof, while avoiding damage to the car paint.

[0056] When using the device in heavy rain, check for gaps at the connection between the adjustment plate 6 and the top frame 3. If gaps are found, apply waterproof tape to the gaps to prevent rainwater from seeping into the adjustment device and causing corrosion. Also, avoid placing paper, electronic, or other water-sensitive items on the device. If it is necessary to place them on the frame, pack them in a waterproof storage box first.

[0057] When using the product in hot weather, avoid placing plastic or rubber luggage directly on the adjustment plate 6 and top rack 3. You can place heat-insulating pads on the contact surfaces to prevent luggage from deforming due to high temperatures. At the same time, check whether the heating wire 609 circuit is disconnected to avoid accidentally activating the heating wire 609 and accelerating the aging of the components.

Claims

1. A car luggage rack with adjustable limiting function, comprising a base frame (1) and a support rod (2) fixedly connected to the top of the base frame (1), characterized in that: The top of the support rod (2) is fixedly connected to a top frame (3), and the side of the base frame (1) is fixedly connected to a crossbar (4). An adjustment device is provided on the surface of the crossbar (4). The adjustment device includes an adjustment plate (6), an arc-shaped clamp (602), an annular sleeve (603), a load-bearing frame (604), a telescopic rod (605), a connecting seat (606), a steering seat (607), and a rotating rod (608). The arc-shaped clamp (602) is fixedly connected to the back of the adjustment plate (6). The annular sleeve (603) is sleeved on the outer surface of the crossbar (4). The load-bearing frame (604) is fixedly connected to the top of the annular sleeve (603). The telescopic rod (605) is installed inside the load-bearing frame (604). The connecting seat (606) is fixedly connected to the end of the telescopic rod (605) away from the load-bearing frame (604). The rotating rod (608) is rotatably connected to the inside of the connecting seat (606). The steering seat (607) is fixedly connected to both ends of the outer surface of the rotating rod (608).

2. The car luggage rack with adjustable limiting function according to claim 1, characterized in that: The arc-shaped clamp (602) is snapped onto the outer surface of the top frame (3), the outer surface of the steering seat (607) is fixedly connected to the back of the adjusting plate (6), and the connecting seat (606) has an arc-shaped chamfer on the side near the adjusting plate (6).

3. A car luggage rack with adjustable limiting function according to claim 1, characterized in that: A heating wire (609) is fixedly installed on the outer surface of the load-bearing frame (604). A wire hole (610) is provided on the side of the load-bearing frame (604). The heating wire (609) is connected to the car power cable through a wire passing through the wire hole (610).

4. A car luggage rack with adjustable limiting function according to claim 1, characterized in that: A positioning post (611) is fixedly connected to the top of the crossbar (4) near the center, and a positioning plate (601) is fixedly connected to the top of the adjusting plate (6). The surface of the positioning plate (601) has a positioning hole with a diameter larger than that of the positioning post (611).

5. A car luggage rack with adjustable limiting function according to claim 1, characterized in that: The bottom of the crossbar (4) is fixedly connected to a buffer column (7), and the bottom of the buffer column (7) is fixedly connected to the car roof.

6. A car luggage rack with adjustable limiting function according to claim 1, characterized in that: The bottom of the base frame (1) is fixedly connected to a clamping seat (5), and the bottom of the clamping seat (5) is fixedly connected to a clamping plate (501). The outer surface of the clamping plate (501) is connected to a limiting plate (502) by a locking bolt (503).

7. A car luggage rack with adjustable limiting function according to claim 1, characterized in that: The surface of the adjustment plate (6) is evenly provided with several anti-slip holes, and the inner edge of the anti-slip hole is rounded. The outer sides of both ends of the rotating rod (608) are fitted with wear-resistant bushings, which are made of polytetrafluoroethylene.

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