An angle-adjustable knuckle

Abstract

This utility model discloses an angle-adjustable steering knuckle, relating to the field of umbrella accessory technology. It includes a stop clip for connecting the umbrella pole, a base for connecting the ground pole, a toothed head, and a drive component. The stop clip is rotatably connected to the upper part of the base. A vertically formed through-cavity is provided inside the base, and the toothed head is slidably disposed within the cavity to prevent rotation. The drive component is movably sleeved on the outside of the base and is connected to the toothed head via a transmission connection. It has the ability to drive the toothed head to reciprocate and lock in a lifting and lowering motion, so that the toothed head can be limited to contact or separate from the stop clip. In the locked state, the toothed head is limited to contact the stop clip to restrict the rotation of the stop clip relative to the base. In the rotating state, the toothed head is separated from the stop clip, allowing the stop clip to rotate freely. The drive component structure of this utility model features high locking stability, providing a more reliable locking force for the umbrella steering knuckle.

Description

Technical Field

[0001] This utility model relates to the field of umbrella accessories technology, specifically an angle-adjustable steering knuckle. Background Technology

[0002] Fishing enthusiasts use umbrellas for sun and rain protection while fishing. To adapt to varying degrees of sunlight and weather conditions, and to maximize the use of the umbrella's surface area, existing technologies often incorporate a swivel joint on the umbrella shaft to adjust the canopy's orientation. However, the swivel joints used in these technologies have relatively low strength, resulting in an unstable overall structure. After the angle adjustment is locked, the joints tend to loosen, affecting the user experience. Furthermore, existing swivel joints do not make efficient use of the shaft's space, leading to a bulky adjustment structure that is inconvenient for storage and transport. Additionally, the adjustment structure disrupts the umbrella's structural integrity, impacting its overall aesthetics. Utility Model Content

[0003] To address the issues of poor stability, large size, and unattractive appearance of existing umbrella steering knuckles mentioned in the background section, an angle-adjustable steering knuckle is proposed, which achieves stable angle adjustment while maintaining a high level of aesthetic appeal.

[0004] This utility model discloses an angle-adjustable steering knuckle, comprising a shift lever for connecting an umbrella pole, a base for connecting a ground pole, a toothed head, and a driving component; the shift lever is rotatably connected to the upper part of the base; a vertical through-cavity is formed inside the base, and the toothed head is slidably disposed within the cavity to prevent rotation; the driving component is movably sleeved on the outside of the base, and the driving component is connected to the toothed head for transmission, having the ability to drive the toothed head to reciprocate and lock up and down, so that the toothed head and the shift lever are limited to abutment or separation; in the locked state, the toothed head and the shift lever are limited to abutment, thereby restricting the rotation of the shift lever relative to the base; in the rotating state, the toothed head and the shift lever are separated, and the shift lever can rotate freely.

[0005] As a further improvement of this utility model, the driving component includes a rotating sleeve and a lifting sleeve; the lifting sleeve is disposed inside the rotating sleeve, and the inner side of the rotating sleeve and the outer periphery of the lifting sleeve are provided with matching threads, and the two are connected by thread engagement; the lifting sleeve is sleeved on the outer side of the base and has a fixed connection with the tooth head, the lifting sleeve is driven by the thread engagement of the rotating sleeve, and can drive the tooth head to slide back and forth along the axial direction of the base, and in the non-driving state, the threaded connection between the rotating sleeve and the lifting sleeve has the ability to lock the sliding movement of the tooth head.

[0006] As a further improvement of this utility model, the base includes an outer sleeve and a core seat; the core seat is coaxially arranged with the outer sleeve and is fixedly connected to the upper end of the outer sleeve; the upper end of the core seat has a downwardly extending groove along the axial direction, and the tooth head is slidably embedded in the groove.

[0007] As a further improvement of this utility model, it also includes a cap and a rivet; the cap is movably sleeved on the upper end of the core seat and located above the driving component, and the gear shift card is clamped inside the upper end of the slide groove of the core seat and located directly above the tooth; the gear shift card, the upper end of the base and the cap have overlapping parts in the horizontal direction, and the rivet horizontally penetrates the overlapping part of the three and serves as the rotation axis of the gear shift card.

[0008] As a further improvement of this utility model, a first step is formed on the lower outer side of the base, and a second step is formed on the sleeve portion of the cap and the base. The two ends of the rotating sleeve abut against the first step and the second step respectively, and cannot slide along the axial direction of the base.

[0009] As a further improvement of this utility model, the gear shifter is provided with a number of evenly spaced gear shifter teeth around the rotation axis. Any gear shifter tooth abutting against the tooth head can restrict the rotation of the gear shifter around the rivet.

[0010] As a further improvement of this utility model, the upper end of the cap and the core seat is an arc-shaped ear with the rivet as the axis, so as to avoid the rotation space required by the umbrella rod connected to the gear position card.

[0011] As a further improvement of this utility model, the upper end of the cap is provided with a downwardly extending clearance groove, which is vertically aligned with the slide groove and the groove width is not narrower than the slide groove, so as to avoid the rotational movement path of the gear shifter.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention uses a threaded engagement drive component composed of a rotating sleeve and a lifting sleeve to control the locking or unlocking of the gear head and the shift lever. The threaded engagement drive structure has a self-locking characteristic, therefore, the drive component structure has the characteristics of high locking stability and self-locking protection, providing a more reliable locking force than the umbrella steering knuckle in the prior art. In addition, the steering knuckle structure of this invention makes full use of the umbrella pole space. Without compromising the overall appearance and contour of the umbrella pole, a large-sized drive locking structure component is designed, ensuring the overall aesthetics of the umbrella while ensuring structural strength with a large-sized component. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0015] Figure 2 This is an exploded view of the steering knuckle part of this utility model;

[0016] Figure 3 This is a cross-sectional view of the internal structure of the steering knuckle of this utility model;

[0017] Figure 4This is a cross-sectional view of the steering knuckle of the present invention in the locked state of the gear position card and the tooth head.

[0018] Figure 5 This is a cross-sectional view of the steering knuckle of the present invention in the state of separation and loosening of the gear shift and tooth.

[0019] Figure 6 This is a schematic diagram showing the structure and assembly of the lifting sleeve and core seat of the steering knuckle of this utility model;

[0020] Figure 7 This is a schematic diagram of the gear shift lever of the steering knuckle of this utility model and the umbrella rod connected to it, which is locked when rotated to different positions.

[0021] Figure 8 This is a schematic diagram showing the assembly relationship between the first step, the second step, and the rotating sleeve of the steering knuckle of this utility model.

[0022] 1. Gear shifter; 101. Gear shifter tooth; 2. Base; 21. Outer sleeve; 210. First step; 22. Core seat; 221. Slide groove; 3. Tooth head; 4. Drive component; 41. Rotating sleeve; 42. Lifting sleeve; 5. Cap head; 510. Second step; 511. Clearance groove; 6. Rivet. Detailed Implementation

[0023] Specific Implementation Example 1: Please refer to the appendix Figure 1 - Appendix Figure 8 ,

[0024] An adjustable steering knuckle includes a gear shift lever 1, a base 2, a toothed head 3, a drive component 4, a cap 5, and a rivet 6. From bottom to top, the components are: base 2, drive component 4, toothed head 3, cap 5, gear shift lever 1, and rivet 6. The drive component 4 is sleeved on the outside of the base 2 and has a threaded connection with the toothed head 3, enabling it to drive the toothed head 3 to move axially back and forth. The rivet 6 passes through the cap 5, the upper end of the base 2, and the lower end of the gear shift lever 1, keeping their horizontal heights relatively fixed. The gear shift lever 1 can rotate about the rivet 6 as an axis.

[0025] The base 2 consists of an outer sleeve 21 and a core seat 22. Both the outer sleeve 21 and the core seat 22 are vertical cylinders with a central shaft hole. The lower end of the outer sleeve 21 is fixedly connected to the supporting ground rod. The lower diameter of the core seat 22 is less than or equal to the inner diameter of the outer sleeve 21. The lower end of the core seat 22 passes through the hollow inner cavity of the outer sleeve 21 and is fixedly connected to the inner cavity of the outer sleeve 21 as one piece (in this embodiment, welding is used for fixing). The core seat 22 has a slot extending downward along the axial direction from the top, dividing the upper part of the core seat 22 into two independent and symmetrical arc-shaped vertical walls. At the separation of the two arc-shaped vertical walls, two sliding grooves 221 parallel to the central axis are formed (e.g., Figure 6 (The thickened outline of the core seat 22 is shown).

[0026] The tooth 3 is a plate with a thickness not greater than the width of the groove 211. The tooth 3 is movably disposed in the hollow cavity of the core seat 22. The left and right ends of the tooth 3 are embedded in two grooves 221, and can slide back and forth along the extension direction of the grooves 221 (i.e., the axial direction of the base 2). The top of the tooth 3 has a downward tooth-shaped recess.

[0027] The driving component 4 consists of a rotating sleeve 41 and a lifting sleeve 42. Both the rotating sleeve 41 and the lifting sleeve 42 are cylindrical parts with a vertically protruding central shaft hole. The inner wall of the rotating sleeve 41 and the outer wall of the lifting sleeve 42 are fitted with matching threads. The lifting sleeve 42 is screwed into the rotating sleeve 41. The inner diameter of the lifting sleeve 42 is not less than the upper diameter of the core seat 22. The lifting sleeve 42, screwed into the rotating sleeve 41, is slidably sleeved on the outer side of the upper end of the core seat 22. The inner wall of the lifting sleeve 42 is connected and fixed to the left and right ends of the tooth head 3, enabling it to move up and down synchronously along the direction of the slide groove 221. The lower end of the rotating sleeve 41 abuts against the upper end of the outer sleeve 21.

[0028] The shifting plate 1 is a plate of the same thickness as the tooth 3. It is positioned above the tooth 3 and lies on the same vertical plane. The lower end of the shifting plate 1 is also embedded within the space of the two sliding grooves 221 of the core seat 22. The lower end of the shifting plate 1 has an arc-shaped profile, and protruding shifting teeth 101 are evenly spaced along the arc, corresponding to the tooth-shaped recesses of the tooth 3. The upper end of the shifting plate 1 extends vertically and is fixedly connected to the umbrella shaft of the umbrella whose angle needs to be adjusted.

[0029] The cap head 5 is a cylindrical part with a vertically protruding central shaft hole. A non-through slot is formed at the top of the cap head 5 along the central axis, creating two clearance grooves 511 parallel to the central axis. The inner diameter of the cap head 5 is larger than the upper diameter of the core seat 22. The cap head 5 is fitted onto the upper end of the core seat 22, with the two clearance grooves 511 spaced apart and corresponding to the two sliding grooves 221 on the core seat 22. The lower end of the stop clip 1 is embedded and confined within the space of the two sliding grooves 221 of the core seat 22, and also within the space of the two clearance grooves 511 of the cap head 5. The lower end of the cap head 5 abuts against the upper end of the rotating sleeve 41.

[0030] Furthermore, the lower end of the gear shift 1, the upper end of the core seat 22 (the arc-shaped vertical wall portion), and the upper end of the cap 5 overlap in the horizontal direction. The rivet 6, along the horizontal axis of the lower end of the gear shift 1, passes through the portion of the upper end of the cap 5 without the clearance groove 511, the upper end of the arc-shaped vertical wall of the core seat 22, and the lower end center of the gear shift 1, thus confining the three to the same horizontal height. The position where the rivet 6 penetrates the lower end of the gear shift 1 passes through the center of the arc of the gear shift teeth 101 arranged in a ring. The gear shift 1 can rotate around the rivet 6. The sliding groove 221 of the core seat 22 and the clearance groove 511 of the cap 5 can provide clearance space for the upper part of the gear shift 1 when the gear shift 1 rotates to the side.

[0031] Furthermore, such as Figure 7 and Figure 8 As shown, the upper ends of the core seat 22 and the cap 5 are both arc-shaped ears with the rivet 6 as the axis, and the lower end of the gear position card 1 is an upward concave arc. When the gear position card 1 needs to be rotated to the side, the arc-shaped ear contour and the lower end contour of the gear position card 1 form the clearance space required for rotation.

[0032] Angle adjustment principle:

[0033] like Figure 8 As shown, a first step 210 is formed at the junction of the outer sleeve 21 and the core seat 22, and a second step 510 is formed at the junction of the lower end of the cap 5 and the core seat 22. The two ends of the rotating sleeve 41 abut against the first step 210 and the second step 510 respectively, preventing axial sliding movement. When the user rotates the rotating sleeve 41, the lifting sleeve 42, which is engaged with the rotating sleeve 41, will have a corresponding rotational tendency. The lifting sleeve 42 and the tooth 3 are fixedly connected. The tooth 3 cannot rotate due to the limiting effect of the sliding groove 221, thus correspondingly restricting the rotation of the lifting sleeve 42. The lifting sleeve 42 cannot rotate and therefore moves up and down with the thread engagement. The tooth 3 and the lifting sleeve 42 move up and down together. Figure 4 As shown, when the toothed head 3 rises with the lifting sleeve 42 until it engages with the gear position tooth 101 on the gear position card 1, it restricts the rotational movement of the gear position card 1 around the rivet 6, locks the swing angle of the gear position card 1, and thus fixes the angle of the umbrella rod fixedly connected to the gear position card 1; Figure 5 As shown, when the toothed head 3 descends with the lifting sleeve 42 to the toothed recessed area where it loosens and separates from the gear position card 1, the gear position card 1 can... Figure 7 Rotate the umbrella to the side to adjust the orientation angle of the connected umbrella rod, and then drive the tooth 3 to abut against the locking position card 1 to complete the locking after angle adjustment.

[0034] The above description is only a preferred embodiment of the present utility model and is intended to illustrate the principle and effect of the present utility model, and is not intended to limit the present utility model. All variations, modifications and substitutions within the spirit and principle of the present design are within the protection scope of the present utility model.

Claims

1. An angle-adjustable steering knuckle, characterized in that: It includes a shift lever (1) for connecting the umbrella pole, a base (2) for connecting the ground pole, a tooth (3) and a drive component (4); the shift lever (1) is rotatably connected to the upper part of the base (2); a vertical through chamber is opened inside the base (2), and the tooth (3) is slidably disposed in the chamber without rotation; the drive component (4) is movably sleeved on the outside of the base (2), and the drive component (4) is connected to the tooth (3) for transmission, and has the ability to drive the tooth (3) to reciprocate and lock up and down, so that the tooth (3) and the shift lever (1) are limited to abutment or separation; in the locked state, the tooth (3) and the shift lever (1) are limited to abutment, so as to restrict the rotation of the shift lever (1) relative to the base (2); in the rotating state, the tooth (3) and the shift lever (1) are separated, and the shift lever (1) can rotate freely.

2. The angle-adjustable steering knuckle according to claim 1, characterized in that: The driving component (4) includes a rotating sleeve (41) and a lifting sleeve (42); the lifting sleeve (42) is located inside the rotating sleeve (41), and the inner side of the rotating sleeve (41) and the outer periphery of the lifting sleeve (42) are fitted with matching threads, and the two are connected by thread engagement; the lifting sleeve (42) is sleeved on the outer side of the base (2) and has a fixed connection with the tooth (3). The lifting sleeve (42) is driven by the thread engagement of the rotating sleeve (41), and can drive the tooth (3) to slide back and forth along the axial direction of the base (2). In the non-driving state, the threaded connection between the rotating sleeve (41) and the lifting sleeve (42) has the ability to lock the sliding movement of the tooth (3).

3. The angle-adjustable steering knuckle according to claim 1, characterized in that: The base (2) includes an outer sleeve (21) and a core seat (22); the core seat (22) is coaxially arranged with the outer sleeve (21), and the core seat (22) is fixedly connected to the upper end of the outer sleeve (21); the upper end of the core seat (22) is provided with a downwardly extending groove (221) along the axial direction, and the tooth (3) is slidably embedded in the groove (221).

4. The angle-adjustable steering knuckle according to claim 3, characterized in that: It also includes a cap (5) and a rivet (6); the cap (5) is movably sleeved on the upper end of the core seat (22) and located above the drive member (4), and the gear position card (1) is clamped on the inner side of the upper end slide groove (221) of the core seat (22) and located directly above the tooth head (3); the gear position card (1), the upper end of the base (2) and the cap (5) have overlapping parts in the horizontal direction, and the rivet (6) horizontally penetrates the overlapping part of the three and serves as the rotation axis of the gear position card (1).

5. The angle-adjustable steering knuckle according to claim 4, characterized in that: A first step (210) is formed on the outer side of the lower end of the base (2), and a second step (510) is formed on the sleeve part of the cap (5) and the base (2). The two ends of the rotating sleeve (41) abut against the first step (210) and the second step (510) respectively, and cannot slide along the axial direction of the base (2).

6. The angle-adjustable steering knuckle according to claim 4, characterized in that: The gear position card (1) has several evenly spaced gear position teeth (101) arranged around the rotation axis. Any gear position tooth (101) abuts against the tooth head (3) and can restrict the gear position card (1) from rotating around the rivet (6).

7. The angle-adjustable steering knuckle according to claim 4, characterized in that: The upper ends of the cap (5) and the core seat (22) are arc-shaped ears with the rivet (6) as the axis, so as to avoid the rotation space required by the umbrella rod connected to the gear position card (1).

8. The angle-adjustable steering knuckle according to claim 4, characterized in that: The upper end of the cap (5) is provided with a downward extending clearance groove (511), which is vertically corresponding to the slide groove (221) and the groove width is not narrower than the slide groove (221) in order to avoid the rotational movement path of the gear shift card (1).

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