Automobile luggage rack with expansion function

Abstract

The utility model relates to the technical field of automobile luggage rack, and disclose a kind of automobile luggage rack with expansion function, including connecting frame, the top of connecting frame is provided with guardrail, the inside of connecting frame is equipped with air bag, the outer surface of connecting frame is fixed with air pump, the output of air pump is through connecting frame, and the outer surface of air bag is equipped with the output of air pump, the inner wall of connecting frame is slidably connected with extension frame, this automobile luggage rack with expansion function, when needing to install guardrail and extension frame, L-shaped rod is inserted into butt joint groove, and the plane side of clamping block is in contact with fixed block, the stable limiting of guardrail and extension frame is realized, at this moment, normal bolt fixing can be carried out, and misoperation and skidding deviation do not occur, and installation efficiency is improved. When needing to release limiting, the clamping block is separated from the surface of fixed block and movable block by movable block cooperating with fixed block, L-shaped rod is separated from butt joint groove, and separation is completed.

Description

Technical Field

[0001] This utility model relates to the field of car roof rack technology, specifically a car roof rack with expandable functionality. Background Technology

[0002] A car roof rack is a bracket installed on the roof of a vehicle to facilitate the carrying of large items. It forms the basis of all roof-mounted solutions for cars, working in conjunction with roof boxes and roof frames to carry travel luggage, increasing interior space. It can also carry other sports equipment such as skis, bicycles, and sailboats.

[0003] According to a public notice (Announcement No.: CN221938141U) regarding an expandable car roof rack, the expandable car roof rack described in the above application, through the cooperation of an expansion cavity, airbag, connecting plate, hose, and air pump, can move the support rod and guardrail upwards, thereby expanding the placement space of the roof rack to meet the needs of users. At the same time, through the cooperation of rubber pads, extrusion plates, L-shaped fixing brackets, and bolts, the gap between the support rod and the fixing plate can be sealed to prevent rainwater from entering the expansion cavity and affecting the service life of the expansion components.

[0004] However, in the aforementioned application, when fixing the bolts, personnel need to first align the mounting holes between the extrusion plate and the L-shaped plate before the bolts can be fixed. Personnel need to continuously hold the extrusion plate. If there is accidental contact or slippage, the mounting holes will shift, requiring readjustment and affecting the bolt installation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a car roof rack with expandable functions to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a car luggage rack with an expandable function, including a connecting frame, a guardrail on the top of the connecting frame, an airbag installed inside the connecting frame, an air pump fixed on the outer surface of the connecting frame, the output end of the air pump passing through the connecting frame, and the outer surface of the airbag being installed at the output end of the air pump; an extension frame slidably connected to the inner wall of the connecting frame, and positioning components and protective components being provided on the outer surfaces of the extension frame and the guardrail; The positioning component includes: L-shaped bars are used to stabilize the various components on its surface; The movable block is used to release the limit switch to facilitate the separation of the guardrail and the extension frame; The fixing block is used in conjunction with the locking block for limiting movement.

[0007] Preferably, the L-shaped rod is disposed inside the guardrail, penetrates the guardrail, and is slidably connected to the guardrail. A movable block is slidably connected to the outer surface of the L-shaped rod. A magnet is fixed to the outer surface of the L-shaped rod and is magnetically connected to the movable block. A fixed block is fixed to the outer surface of the L-shaped rod. A cavity is formed inside the guardrail, and a magnet is fixed to the inner wall of the cavity. A connecting block is fixed to the outer surface of the L-shaped rod and is magnetically connected to the magnet. A docking groove is formed at the top of the extension frame. A sliding groove is formed on the inner wall of the docking groove. A locking block is slidably connected to the inner wall of the sliding groove. A spring is fixed to the outer surface of the locking block. The end of the spring away from the locking block is fixed to the inner wall of the sliding groove. When the L-shaped rod is inserted into the docking groove, the inclined surface of the fixed block pushes the locking block into the sliding groove and compresses the spring. When the locking block moves between the movable blocks, the spring is released, causing the flat side of the locking block to abut against the fixed block, thereby achieving stable positioning of the guardrail and the extension frame. When the limit switch needs to be released, pull down the L-shaped rod to cause the movable block to press against the locking block, causing it to slide to the outside of the movable block. At this time, pulling up the guardrail will cause the locking block to detach along the surface of the fixed block and the movable block, and the L-shaped rod will then detach from the docking groove, completing the separation. Finally, magnet one attracts the movable block to reset, and magnet two pulls the L-shaped rod to reset through the connecting block, preparing for the next installation.

[0008] Preferably, the protective component includes a baffle fixed to the outer surface of the guardrail. An L-shaped plate is slidably connected to the outer surface of the guardrail. A movable groove is formed at the top of the L-shaped plate, and a movable column is slidably connected to the inner wall of the movable groove. A second spring is fixed to the bottom of the movable column, and the bottom of the second spring is fixed to the bottom of the inner wall of the movable groove. A stabilizing groove is formed on the outer surface of the guardrail. When the outer surface of the L-shaped plate abuts against the inner side of the L-shaped rod, it can restrict the movement of the L-shaped rod, preventing accidental contact that could affect the limiting stability. After pulling the L-shaped plate to disengage it from the L-shaped rod, the movable column slides into the stabilizing groove, thus fixing the position of the L-shaped plate.

[0009] Preferably, the fixed block is a right-angled triangular block, the movable block is a right-angled trapezoidal block, and the end of the locking block away from the spring is a bevel. When the fixed block and the movable block are in contact with each other, it is easy to release the limit and facilitate separation. The bevel of the locking block is abutted, which allows the locking block to enter the slide groove without affecting normal docking.

[0010] Preferably, the end of the movable column away from the second spring is set in an arc shape, so that when the movable column moves with the L-shaped plate, it can move into the movable groove without affecting the normal movement of the L-shaped plate.

[0011] Preferably, the stabilizing groove is provided in two sets to facilitate the stabilization of the L-shaped plate.

[0012] Compared with the prior art, this utility model provides a car roof rack with an expandable function, which has the following beneficial effects: 1. This extendable car roof rack, through its positioning components, allows for stable positioning of the guardrail and extension frame when the guardrail and extension frame need to be installed. The L-shaped rod is inserted into the mating slot, and the flat side of the locking block abuts against the fixed block, ensuring the guardrail and extension frame are securely fixed. At this point, bolt fixing can be performed normally without accidental contact or slippage, improving installation efficiency. To release the positioning, the movable block engages with the fixed block, causing the locking block to detach along the surfaces of both blocks, and the L-shaped rod disengages from the mating slot, completing the separation.

[0013] 2. This car roof rack with extended functionality, through the protective components, can restrict the movement of the L-shaped rod when the outer surface of the L-shaped plate abuts against the inner side of the L-shaped rod, preventing accidental contact from affecting the stability of the limit. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a side sectional view of the present invention. Figure 3 This is a cross-sectional view of a portion of the positioning components of this utility model; Figure 4 This utility model Figure 3 Schematic diagram of the enlarged structure of A in the middle; Figure 5 This is a bottom view of the guardrail and stabilizing groove structure of this utility model.

[0015] In the diagram: 1. Connecting frame; 2. Guardrail; 3. Airbag; 4. Air pump; 5. Extension frame; 6. Positioning component; 60. L-shaped rod; 61. Movable block; 62. Fixed block; 63. Magnet one; 64. Cavity; 65. Magnet two; 66. Connecting block; 67. Docking groove; 68. Locking block; 69. Spring one; 600. Slide groove; 7. Protective component; 70. Baffle; 71. L-shaped plate; 72. Movable groove; 73. Movable column; 74. Spring two; 75. Stabilizing groove. Detailed Implementation

[0016] like Figures 1-5 As shown, this utility model provides a technical solution: a car luggage rack with an expandable function, including a connecting frame 1, a guardrail 2 on the top of the connecting frame 1, an airbag 3 installed inside the connecting frame 1, an air pump 4 fixed on the outer surface of the connecting frame 1, the output end of the air pump 4 passing through the connecting frame 1, and the output end of the air pump 4 being installed on the outer surface of the airbag 3, an extension frame 5 slidably connected to the inner wall of the connecting frame 1, and a positioning component 6 and a protective component 7 provided on the outer surface of the extension frame 5 and the guardrail 2; the positioning component 6 includes: an L-shaped rod 60, a movable block 61, a fixed block 62, a magnet 63, a cavity 64, a magnet 65, a connecting block 66, a docking groove 67, a locking block 68, and a sliding groove 600.

[0017] L-shaped rod 60 is installed inside guardrail 2, penetrating guardrail 2 and slidably connected to guardrail 2. A movable block 61 is slidably connected to the outer surface of L-shaped rod 60. A magnet 63 is fixed to the outer surface of L-shaped rod 60, magnetically connected to movable block 61. A fixing block 62 is fixed to the outer surface of L-shaped rod 60. A cavity 64 is opened inside guardrail 2, and a magnet 65 is fixed to the inner wall of cavity 64. A connecting block 66 is fixed to the outer surface of L-shaped rod 60, magnetically connected to magnet 65. A docking groove 67 is opened at the top of extension frame 5, and a sliding groove 600 is opened on the inner wall of docking groove 67. A locking block 68 is slidably connected to the inner wall of sliding groove 600. A spring 69 is fixed to the outer surface of locking block 68, with the end of spring 69 away from locking block 68 fixed to the inner wall of sliding groove 600. The fixing block 62 is a right-angled triangular block. Block 61 is set as a right-angled trapezoidal block, and the end of the locking block 68 away from the spring 69 is set as an inclined surface. The fixed block 62 is set as a right-angled triangular block, and the movable block 61 is set as a right-angled trapezoidal block. The end of the locking block 68 away from the spring 69 is set as an inclined surface. After the L-shaped rod 60 is inserted into the docking groove 67, the inclined surface of the fixed block 62 abuts against the locking block 68, pushing the locking block 68 into the slide groove 600 and compressing the spring 69. When the locking block 68 moves between the movable blocks 61, the spring 69 is released, so that the flat side of the locking block 68 abuts against the fixed block 62, realizing the stable positioning of the guardrail 2 and the extension frame 5, preventing accidental contact or displacement. Pulling down the L-shaped rod 60 will cause the movable block 61 to move towards the locking block 68. When the locking block 68 slides to the outside of the movable block 61, pulling up the guardrail 2 can drive the movable block 61 and the fixed block 62 to fit together, and finally make the locking block 68 disengage along the surface of the movable block 61 and the fixed block 62, releasing the positioning. At this time, the L-shaped rod 60 disengages from the docking slot 67, the guardrail 2 separates from the extension frame 5, and at the same time, magnet one 63 attracts the movable block 61 to reset, and magnet two 65 drives the L-shaped rod 60 to reset through the connecting block 66, which is convenient for the next installation.

[0018] The protective component 7 includes a baffle 70, which is fixed to the outer surface of the guardrail 2. An L-shaped plate 71 is slidably connected to the outer surface of the guardrail 2. A movable groove 72 is provided at the top of the L-shaped plate 71. A movable column 73 is slidably connected to the inner wall of the movable groove 72. A second spring 74 is fixed at the bottom of the movable column 73. The bottom of the second spring 74 is fixed to the bottom of the inner wall of the movable groove 72. A stabilizing groove 75 is provided on the outer surface of the guardrail 2. Two sets of stabilizing grooves 75 are provided. The outer surface of the L-shaped plate 71 abuts against the inner side of the L-shaped rod 60, which can limit the L-shaped rod 60 and prevent external accidental contact that could cause the L-shaped rod 60 to move, affecting the limiting stability of the guardrail 2 and the extension frame 5. Pulling the L-shaped plate 71 causes it to disengage from the L-shaped rod 60, allowing the movable column 73 to enter the stabilizing groove 75, thus stabilizing the L-shaped plate 71.

[0019] When installation is required, the L-shaped rod 60 is inserted into the mating groove 67. At this time, the surface of the fixing block 62 abuts against the inclined surface of the locking block 68, and the locking block 68 moves into the sliding groove 600, compressing the spring 69. When the locking block 68 is between the movable blocks 61, the spring 69 is released, and the side of the locking block 68 away from the inclined surface abuts against the flat side of the fixing block 62, thus limiting the fixing block 62. At this time, the guardrail 2 and the extension frame 5 are mutually limited and positioned, preventing accidental contact and slippage. At the same time, the outer surface of the L-shaped plate 71... When the L-shaped rod 60 comes into contact with its inner side, it can be limited, preventing accidental movement of the L-shaped rod 60 and affecting the limiting stability of the guardrail 2 and the extension frame 5. At this time, it can be normally fixed with bolts, improving installation efficiency. When it is necessary to expand the usable space, the air pump 4 inflates the airbag 3, causing the extension frame 5 to move upwards, which in turn moves the guardrail 2 upwards, thus expanding the usable space. When disassembly and maintenance are required, the bolts are removed, and the L-shaped plate 71 is pulled, causing the L-shaped plate 71 to detach from the L-shaped rod 60. When the L-shaped plate 71 moves, the outer surface of the movable column 73 abuts against the inner wall of the stabilizing groove 75, and the movable column 73 moves into the movable groove 72, compressing the spring 74. When the outer surface of the L-shaped plate 71 abuts against the baffle 70, the position of the movable column 73 is parallel to another set of stabilizing grooves 75, and the spring 74 is released, allowing the movable column 73 to enter the stabilizing groove 75, thus stabilizing the L-shaped plate 71. At this time, the L-shaped rod 60 is pulled down, and the movable block 61 moves closer to the locking block 68. When the locking block 68 is located away from the fixed block 61... When the fixed block 62 is on one side, the guardrail 2 is pulled up. The locking block 68 moves the movable block 61 closer to the fixed block 62. When the movable block 61 and the surface of the fixed block 62 are in contact, the locking block 68 moves along the surface of the movable block 61 and the fixed block 62, which releases the limit. At this time, the L-shaped rod 60 disengages from the docking groove 67, and the guardrail 2 and the extension frame 5 can be separated normally. At the same time, magnet 1 63 attracts the movable block 61 to reset, and magnet 2 65 attracts the connecting block 66 to reset, thereby driving the L-shaped rod 60 to reset synchronously, which facilitates the subsequent docking and installation.

[0020] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A car roof rack with expandable functionality, comprising a connecting frame (1), characterized in that: The top of the connecting frame (1) is provided with a guardrail (2), an airbag (3) is installed inside the connecting frame (1), an air pump (4) is fixed on the outer surface of the connecting frame (1), the output end of the air pump (4) passes through the connecting frame (1), and the output end of the air pump (4) is installed on the outer surface of the airbag (3). An extension frame (5) is slidably connected to the inner wall of the connecting frame (1), and a positioning component (6) and a protective component (7) are provided on the outer surface of the extension frame (5) and the guardrail (2). The positioning component (6) includes: L-shaped rod (60), L-shaped rod (60) is used to stabilize the various components on its surface; Movable block (61), movable block (61) is used to release the limit to facilitate the separation of guardrail (2) and extension frame (5); Fixed block (62) is used to cooperate with card block (68) for limiting.

2. The car roof rack with expandable function according to claim 1, characterized in that: The L-shaped rod (60) is installed inside the guardrail (2), the L-shaped rod (60) penetrates the guardrail (2), and the L-shaped rod (60) is slidably connected to the guardrail (2). A movable block (61) is slidably connected to the outer surface of the L-shaped rod (60). A magnet (63) is fixed to the outer surface of the L-shaped rod (60), and the magnet (63) is magnetically connected to the movable block (61). A fixing block (62) is fixed to the outer surface of the L-shaped rod (60). A cavity (64) is opened inside the guardrail (2), and the inner wall of the cavity (64) is... A magnet is fixed to the second magnet (65). A connecting block (66) is fixed to the outer surface of the L-shaped rod (60). The connecting block (66) is magnetically connected to the magnet (65). A docking groove (67) is provided at the top of the extension frame (5). A sliding groove (600) is provided on the inner wall of the docking groove (67). A locking block (68) is slidably connected to the inner wall of the sliding groove (600). A spring (69) is fixed to the outer surface of the locking block (68). The end of the spring (69) away from the locking block (68) is fixed to the inner wall of the sliding groove (600).

3. A car roof rack with an expandable function according to claim 1, characterized in that: The protective component (7) includes a baffle (70), which is fixed to the outer surface of the guardrail (2). An L-shaped plate (71) is slidably connected to the outer surface of the guardrail (2). A movable groove (72) is provided on the top of the L-shaped plate (71). A movable column (73) is slidably connected to the inner wall of the movable groove (72). A second spring (74) is fixed to the bottom of the movable column (73). The bottom of the second spring (74) is fixed to the bottom of the inner wall of the movable groove (72). A stabilizing groove (75) is provided on the outer surface of the guardrail (2).

4. A car roof rack with an expandable function according to claim 2, characterized in that: The fixed block (62) is set as a right-angled triangle block, the movable block (61) is set as a right-angled trapezoid block, and the end of the locking block (68) away from the spring (69) is set as an inclined surface.

5. A car roof rack with an expandable function according to claim 3, characterized in that: The end of the movable column (73) away from the second spring (74) is set to be arc-shaped.

6. A car roof rack with an expandable function according to claim 3, characterized in that: The stabilizing tank (75) is provided in two sets.

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