Tiltable fixing and clamping structure of bicycle carrying frame

Abstract

An inclinable fixing and clamping structure of a bicycle carrying frame comprises a hollow middle rod, a sliding piece, a spring, a fixing seat and a hook-shaped clamping groove, the sliding piece is arranged in a sliding groove in the front end of the middle rod and slides towards the fixing seat under the thrust of the spring, and when the sliding piece slides into the hook-shaped clamping groove through a blocking corner part, stable clamping and positioning can be formed through the blocking corner part, and the sliding piece is fixed to the fixing seat through the hook-shaped clamping groove. And the sliding piece can be driven by the steel cable to be separated from the hook-shaped clamping groove so as to release the carrying frame, and the clamping structure has the effects of smooth guide-in, floating positioning, shock resistance, tripping prevention and the like.

Description

Technical Field

[0001] This invention relates to a vehicle carrying device structure, and more particularly to a tiltable and fixed locking structure for a vehicle carrying rack suitable for the rear end of a vehicle. This structure provides a stable position for the vehicle carrying rack during driving and allows for quick release of the locking mechanism after the user releases the device, enabling the vehicle carrying rack to tilt or rotate. It features easy operation and structural stability. Background Technology

[0002] Existing bike racks are typically installed at the rear of vehicles to carry bicycles, suitcases, or other items. Some designs even feature a tilting function for easier loading and unloading or to avoid the tailgate. However, to ensure stable positioning of the bike rack during travel, most existing devices employ mechanical locking structures such as hooks, pins, or bolts. Users must manually insert, tighten, or flip the rack to engage it, making the process cumbersome. Furthermore, because the components require a tight fit, issues such as loosening, wear, or jamming often arise.

[0003] On the other hand, although some designs attempt to use elastic elements for structural positioning, there is no guide structure between the locking parts and the support frame. Users need to spend more time aligning the structural locking position. Furthermore, if the vehicle frame is displaced due to vibration during vehicle operation, there is a possibility that the locking parts may loosen or fall off accidentally, affecting the safety of use.

[0004] Therefore, the industry urgently needs a locking structure that combines automatic insertion, stable positioning, and shock resistance to prevent slippage, while simplifying the user's operation process and improving the stability and convenience of using the bike frame. Summary of the Invention

[0005] This invention addresses the problems of existing vehicle carrier positioning structures, such as complicated operation, insufficient stability, and easy loosening due to vibration, by providing a tiltable fixing and engaging structure with automatic insertion, quick engagement, and anti-jumping functions.

[0006] Therefore, the structure of the present invention includes: a fixed seat disposed on the vehicle body, the fixed seat having a hook-shaped locking groove; a central rod disposed in the central section of the vehicle carrier body, the central rod being a hollow tube with a sliding groove at its front end; a sliding member disposed in the sliding groove and capable of sliding axially; a spring disposed inside the central rod, with one end hooked to the fixed section at the rear end of the central rod and the other end abutting against the sliding member, causing the sliding member to be pushed towards the fixed seat; and a steel cable connecting the sliding member and an operating unit (such as disposed below the license plate frame), which, when operated by the user, can pull the sliding member away from the hook-shaped locking groove.

[0007] The hook-shaped locking groove of the present invention has a stop angle portion and an inclined stop angle portion formed at the upper edge of the groove. When the sliding member slides into the groove under the push of the spring, it can automatically align and stably embed itself, forming a locking state with a floating accommodating space. This guide structure can tolerate a certain degree of error between structures and maintains a stable locking during vehicle vibration, preventing the sliding member from jumping out or loosening.

[0008] The beneficial effects of this invention are as follows: 1. The sliding component is pushed by the spring and can automatically align itself into the hook-shaped locking groove, improving the smoothness of operation.

[0009] 2. The hook-shaped groove has an inlet angle and a stop section, which makes it quick to lock and not easy to jump out.

[0010] 3. The sliding part can completely disengage from the groove when released, which facilitates the tilting action of the bicycle frame.

[0011] 4. The structure is simplified, with fewer parts, resulting in high durability and ease of installation. Attached Figure Description

[0012] Figure 1 : A perspective view of the present invention.

[0013] Figure 2 : An exploded perspective view of the structure of this invention.

[0014] Figure 3 : Locking state structure diagram of the present invention.

[0015] Figure 4 : The unlocking state structure diagram of the present invention.

[0016] Figure 5 : A schematic diagram of the use of this invention (I).

[0017] Figure 6 : Schematic diagram of the use of the present invention (II).

[0018] Figure 7 : A schematic diagram of the use of this invention (III).

[0019] Figure 8 : A schematic diagram of the use of this invention (IV).

[0020] Figure 9 : Schematic diagram of the angle of the stop corner of the fixed seat.

[0021] Explanation of reference numerals in the attached figures: 1: Center pole 11: Slide 2: Sliding component 3: Spring 4: Steel cable 5: Operation Unit 6: Fixture 61: Hook-shaped locking groove 611: Corner Stop 7: Carrying rack. Detailed Implementation

[0022] like Figures 1 to 3 As shown, this invention discloses a tiltable fixing and engaging structure disposed between a vehicle carrier frame 7 and a vehicle body. The vehicle carrier frame 7 is installed at the rear end of the vehicle, and its central section has a central rod 1. The central rod 1 is a hollow tube with a sliding groove 11 at its front end. A sliding member 2 that can slide axially is disposed in the sliding groove 11. The sliding member 2 abuts against a spring 3, which is disposed inside the central rod 1. One end of the spring 3 is hooked to the fixed section at the rear end of the central rod 1, and the other end abuts against the sliding member 2 to apply a forward pushing force to the sliding member 2.

[0023] The slider 2 is connected to a steel cable 4, which extends rearward and is connected to an operating unit 5, for example, located below the license plate frame. The user can pull the steel cable 4 by flicking or pressing the operating unit 5, thereby releasing the slider 2 and achieving the locking function.

[0024] like Figures 1 to 3 As shown, a fixed seat 6 is provided at the end of the vehicle body, and a hook-shaped locking groove 61 is provided at the front end of the center rod 1. The hook-shaped locking groove 61 has an inlet angle and an upwardly inclined stop angle 611. This structure is used to accommodate and position the sliding member 2 to form a stable engagement. Figure 9 As shown, the measured design angle of the stop corner 611 is approximately between 40 and 50 degrees, which can effectively guide the slider into the hook-shaped locking groove 61, balancing smooth insertion and stopping stability.

[0025] like Figure 3 As shown, the sliding member 2 is locked and positioned within the hook-shaped locking groove 61 of the fixed base 6, with its outer edge abutting against the stop corner 611, forming a stable locking state. At this time, the sliding member 2 is pushed and pressed against the inside of the groove by the spring 3, and the structure has completed its positioning.

[0026] like Figure 4 As shown, when the user operates the operating unit 5, the steel cable 4 pulls the slider 2 backward, causing it to disengage from the hook-shaped locking groove 61, and the carrying frame 7 begins to tilt and rotate, entering a tiltable state.

[0027] The above is an introduction to the various components of the present invention. Next, the usage of the present invention will be described.

[0028] like Figure 5As shown, when the user moves the carrying frame 7 towards the fixed base 6, the slider 2 will first abut against the stop angle 611 of the fixed base 6. This stop angle 611 is at a certain angle, guiding the slider 2 to align with the entrance of the hook-shaped locking groove 61. Due to the continuous force applied by the spring 3, the slider 2 will naturally slide down the guide surface to the vicinity of the hook-shaped locking groove 61. In this embodiment, the guide angle θ of the hook-shaped locking groove 61 is an inwardly concave angle between 10° and 20°.

[0029] like Figure 6 As shown, when the slider 2 contacts the opening of the hook-shaped locking groove 61, due to the tilt design and spring thrust, the slider 2 will slide into the groove and further enter the locking section.

[0030] like Figure 7 As shown, after the slider 2 enters the hook-shaped locking groove 61, the spring 3 will immediately push the slider 2 forward, so that it is in contact with the internal structure of the hook-shaped locking groove 61, presenting a dynamic positioning state.

[0031] like Figure 8 As shown, the sliding member 2 is fully engaged and stably positioned within the groove. In this state, even if the vehicle frame 7 shakes slightly due to vibrations during driving, the sliding member 2 will be pressed further against the hook-shaped locking groove 61 by the continuous force applied by the spring 3, producing a "the more it vibrates, the more it locks" stabilizing effect, significantly improving the reliability of anti-jumping and anti-loosening.

[0032] As can be seen from the above structural and operational relationships, the present invention has the following advantages: 1. The sliding component 2 can automatically engage with the hook-shaped locking groove 61, ensuring quick and precise engagement; 2. The 611 design of the guide angle and stop angle ensures stable positioning and prevents slippage; 3. The user can pull the steel cable 4 through the operating unit 5 to quickly release the engagement between the sliding part and the hook-shaped locking groove 61; 4. The self-locking effect of spring 3 and structural vibration response enhances resistance to loosening and safety.

[0033] It should be noted that the above description is a specific embodiment of the present invention and the technical principles used. Any changes made according to the concept of the present invention that do not exceed the spirit covered by the specification and drawings should be within the scope of the present invention and are hereby stated.

Claims

1. A tilting fixing and engaging structure of a carrying frame, comprising: a fixing base arranged at an end of a vehicle body and having a hook-shaped engaging recess; a middle rod arranged at a central section of a carrying frame body, the middle rod being a hollow pipe, and a front end of the middle rod being provided with a sliding groove; a sliding member arranged in the sliding groove and capable of sliding in the sliding groove; a spring arranged inside the middle rod, one end of the spring being hooked on a spring fixing section at a rear end of the middle rod, and the other end of the spring abutting against the sliding member and applying a pushing force to the sliding member towards the fixing base; characterized in that: the hook-shaped engaging recess has a stop corner for guiding the sliding member to slide into the hook-shaped engaging recess, and after the sliding member is positioned, the stop corner of the upper edge of the hook-shaped engaging recess prevents the sliding member from jumping out of the hook-shaped engaging recess under the condition of vibration, so that the sliding member is floatingly positioned in the engaged state, and the structure has the effects of quick engagement and anti-loosening; the spring provides a continuous pushing force, so that the sliding member is automatically pushed into the hook-shaped engaging recess, and a clear positioning feeling and feedback effect are generated during operation, and the use stability and operation convenience are improved.

2. The frame-carrying structure according to claim 1, wherein The sliding member is connected with an operation unit through a steel cable, the operation unit is arranged below the license plate bracket, and is used to drive the sliding member to disengage from the hook-shaped engaging recess, so as to release the carrying frame.

3. The frame-tilting fixing and engaging structure according to claim 1, wherein The sliding member is continuously pushed against the hook-shaped engaging recess by the spring in the engaged state, and even if vibration is generated during driving of the vehicle body, the sliding member will not jump out of the hook-shaped engaging recess.

4. The frame inclinable fixing and engaging structure according to claim 1, wherein The hook-shaped engaging recess is provided with a guide surface at an entrance section of the hook-shaped engaging recess, the guide surface is used to guide the sliding member to be naturally introduced into the hook-shaped engaging recess during the resetting process, so as to improve the engagement efficiency and fault tolerance.

5. The frame inclinable fixing and engaging structure according to claim 1, wherein The sliding member can generate a feedback of engagement positioning when being embedded in the hook-shaped engaging recess, so that an operator can judge the positioning completion state.

6. The frame inclinable fixing and engaging structure according to claim 1, wherein The sliding member is completely disengaged from the hook-shaped engaging recess when being released, so that the carrying frame can be rotated to a tilting state.

7. The frame inclinable fixing and engaging structure according to claim 1, wherein The stop corner θ of the hook-shaped engaging recess is between 40 degrees and 50 degrees.

Images