A multi-angle adjustable handrail structure

Abstract

This utility model provides a multi-angle adjustable handrail structure, comprising a mounting cylinder, an handrail base rotatably connected to the upper end of the mounting cylinder, a handrail structure slidably mounted on the handrail base, and a ball joint structure mounted below the handrail base. The ball joint structure is rotatably connected to the upper end of the mounting cylinder, and a fastening structure for fixing the ball joint structure is installed inside the upper end of the mounting cylinder. The ball joint structure includes a ball, and a connecting rod is fixed to the outer periphery of the ball. The other end of the connecting rod is connected to the lower end of the handrail base. The upper end of the mounting cylinder is provided with a constriction opening to prevent the ball from dislodging. This utility model is reasonably designed; through the ball joint structure and the sliding cooperation between the handrail structure and the handrail base, the entire handrail can be adjusted to a suitable position according to the passenger's requirements.

Description

Technical Field

[0001] This utility model relates to a handrail structure that can be adjusted at multiple angles. Background Technology

[0002] With the continuous development of the automotive industry, consumers have increasingly higher requirements for the comfort of car seats. As an important component, car seat armrests provide passengers with convenient arm support and improve comfort. However, most existing seats can only be adjusted up and down or forward and backward, which cannot meet the personalized needs of passengers and cannot well adapt to the placement of passengers' arms in different sitting positions. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a new type of car armrest for car seats. The armrest is reasonably designed and, through the ball joint structure and the sliding cooperation between the armrest structure and the armrest base, the entire armrest can be adjusted to a suitable position according to the passenger's requirements.

[0004] This utility model is achieved by the following scheme: a handrail structure that can be adjusted at multiple angles: including a mounting cylinder, wherein a handrail base is rotatably connected to the upper end of the mounting cylinder, and a handrail structure is slidably attached to the handrail base.

[0005] Furthermore, a ball joint structure is installed under the armrest base, the ball joint structure is rotatably connected to the upper end of the mounting cylinder, and a fastening structure for fixing the ball joint structure is installed in the upper end of the mounting cylinder.

[0006] Furthermore, the spherical joint structure includes a sphere, a connecting rod is fixed on the outer periphery of the sphere, the other end of the connecting rod is connected to the lower end of the handrail base, and the upper end of the mounting cylinder is provided with a constriction for preventing the sphere from falling out.

[0007] Furthermore, the fastening structure includes a base washer, which is screwed into the mounting cylinder, and the ball abuts against the base washer. A groove is provided on the upper surface of the base washer corresponding to the ball.

[0008] Furthermore, the fastening structure also includes an elastic locking ring, which is installed inside the mounting cylinder and above the base washer. A locking knob is screwed onto the outer wall of the mounting cylinder. The locking knob includes a cap, and a stud is installed on the inner side of the cap. The mounting cylinder has a screw hole corresponding to the elastic locking ring that mates with the stud.

[0009] Furthermore, the handrail structure includes a handrail base, a handrail cover plate is installed on the handrail base, and a limiting sliding structure that cooperates with the handrail base is installed on the handrail base.

[0010] Furthermore, a sliding track groove is provided on the middle of the lower surface of the armrest base, and the limiting sliding connection structure slides into the sliding track groove.

[0011] Furthermore, the sliding track groove is composed of a straight track groove segment and a wavy track groove segment, and the limiting sliding connection structure includes a track clamp plate, which slides in the sliding track groove. A clamping block is clamped in the middle of the track clamp plate, and the clamping block and the track clamp plate are screwed onto the handrail base.

[0012] Furthermore, the narrowest distance of the wavy track groove segment is greater than the width of the straight track groove segment. The track clamping plate includes a rectangular plate body, the width of which corresponds to the width of the straight track groove segment. On the left and right sides of one end of the rectangular plate body, corresponding to the wavy track groove segment, there are snap-fit ​​protrusions.

[0013] Furthermore, the locking block is a rhombus-shaped block, and a cross-shaped groove is provided on the middle of one side plate of the rhombus-shaped block. A cross-shaped locking block is provided on the handrail base corresponding to the cross-shaped groove, and a locking groove is provided on the middle of the track plate corresponding to the rhombus-shaped block.

[0014] Compared with the prior art, the present invention has the following advantages: it is reasonably designed, and through the ball joint structure and the sliding cooperation between the handrail structure and the handrail base, the entire handrail can be adjusted to a suitable position according to the passenger's requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection structure between the armrest base and the limiting sliding joint structure in an embodiment of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0019] Figure 5 This is a usage diagram of an embodiment of the present invention.

[0020] In the diagram: 1-Installation cylinder; 2-Handrail base; 3-Handrail structure; 4-Spherical joint structure; 5-Fastening structure; 6-Sphere; 7-Connecting rod; 8-Constriction; 9-Base washer; 10-Groove; 11-Elastic locking ring; 12-Arc-shaped hole; 13-Locking knob; 14-Cap; 15-Stud; 16-Handrail base; 17-Handrail cover plate; 18-Limiting sliding joint structure; 19-Sliding track groove; 20-Straight track groove segment; 21-Wave track groove segment; 22-Track clamping plate; 23-Clamping block; 25-Cross-shaped clamping block; 26-Clamping groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] like Figure 1-5 As shown, a multi-angle adjustable handrail structure includes a mounting cylinder 1, with a handrail base 2 rotatably connected to the upper end of the mounting cylinder, and a handrail structure 3 slidably attached to the handrail base. In use, the handrail structure can be extended by sliding the handrail structure, and the entire handrail can be adjusted to a suitable position according to the passenger's requirements by rotating and fixing the sway position of the handrail base.

[0025] In this embodiment, to achieve the swaying motion of the armrest base, a ball joint structure 4 is installed under the armrest base. The ball joint structure is rotatably connected to the upper end of the mounting cylinder. A fastening structure 5 for fixing the ball joint structure is installed in the upper end of the mounting cylinder. In use, the fastening structure is first loosened, allowing the ball joint structure to rotate in the upper end of the mounting cylinder, thereby achieving the swaying of the armrest base. When it sways to a suitable position, the fastening structure fixes the ball joint structure, thus fixing the armrest base. The ball joint structure of the body is as follows: The ball joint structure includes a ball 6, and a connecting rod 7 is fixed on the outer periphery of the ball. The other end of the connecting rod is connected to the lower end of the handrail base, that is, the ball is rotatably connected to the mounting cylinder. The connecting rod extends out of the mounting cylinder and connects to the handrail base. At the same time, the upper end of the mounting cylinder is provided with a constriction 8 to prevent the ball from falling out. That is, the diameter of the constriction is smaller than the diameter of the ball to prevent the ball from falling out of the upper end of the mounting cylinder. At the same time, the diameter of the constriction is larger than the diameter of the connecting rod, giving the connecting rod a range of motion.

[0026] In this embodiment, to fix the ball joint structure, the fastening structure includes a base washer 9, which is screwed into the mounting cylinder. The ball abuts against the base washer, and a groove 10 is provided on the upper surface of the base washer corresponding to the ball. The base washer is fixed to the upper end of the mounting cylinder by bolts. The base washer can be annular, and an arc-shaped groove matching the ball is provided in the center of its upper surface, allowing the ball to rotate within the groove. The fastening structure also includes an elastic locking ring 11, which is installed in the mounting cylinder above the base washer. Specifically, the elastic locking ring can be an annular piece with an arc-shaped hole in the center corresponding to the outer wall of the ball, and a notch is provided on its side. The arc-shaped hole 12 inside the opening allows the arc-shaped hole in the elastic locking ring to be enlarged or reduced, thus locking or releasing the ball. The elastic locking ring can be made of existing elastic rubber material, or other elastic materials. A locking knob 13 is screwed onto the outer wall of the mounting cylinder. The locking knob includes a cap 14, and a stud 15 is installed on the inner side of the cap. The mounting cylinder has a screw hole corresponding to the elastic locking ring that mates with the stud. The stud extends into the screw hole and abuts against the outside of the elastic locking ring. When locking is required, the cap is rotated, causing the stud to advance and compress the elastic locking ring, thus fixing the spherical joint structure. The ball is limited by the base washer, the elastic locking ring, and the narrowing opening.

[0027] In this embodiment, in order to achieve the sliding of the handrail structure, the handrail structure includes a handrail base 16, a handrail cover plate 17 is installed on the handrail base, and a limiting sliding connection structure 18 that cooperates with the handrail base is installed on the handrail base. Through the limiting sliding connection structure, the handrail base can slide on the handrail base. Furthermore, the handrail base is plate-shaped, and a sliding track groove 19 is opened in the middle of the lower surface of the handrail base. The sliding track groove does not penetrate the handrail base, and the limiting sliding connection structure slides in the sliding track groove. That is, the sliding of the handrail structure is achieved by the cooperation of the sliding track groove and the limiting sliding connection structure.

[0028] In this embodiment, the specific sliding track groove structure is as follows: the sliding track groove is composed of a straight track groove segment 20 and a wavy track groove segment 21, that is, one end of the straight track groove segment and the wavy track groove segment are connected to form a sliding track groove. The limiting sliding connection structure includes a horizontally arranged track plate 22, which slides in the sliding track groove. A locking block 23 is locked in the middle of the track plate. The locking block and the track plate are screwed onto the handrail base. In use, the track plate is fixed on the handrail base and slides in the sliding track groove to realize the sliding of the handrail structure.

[0029] In this embodiment, to enable the handrail structure to slide to a suitable position and be fixed, the wavy track groove segment is composed of two symmetrically arranged wavy walls. The narrowest distance of the wavy track groove segment is greater than the width of the straight track groove segment, that is, the distance between the midpoints of the concave segments in the two wavy walls is greater than the width of the straight track groove segment. The track clamping plate includes a rectangular plate body, the width of which corresponds to the width of the straight track groove segment. On the left and right sides of one end of the rectangular plate body, corresponding to the wavy track groove segment, there are locking protrusions. That is, the rectangular plate body slides into the straight track groove segment, and the locking protrusion slides into the wavy track groove segment. The left and right outer walls of the locking protrusion are both convex wavy shapes. The convex wavy shapes can lock the convex waves of the wavy track groove segment, thus achieving fixation. Since there are multiple convex wavy shapes along the sliding direction on the wavy track groove segment, it can be fixed at the required position. At the same time, for reasonable design, the entire track clamping plate can be made of elastic plastic material, which is convenient to replace if worn.

[0030] In this embodiment, in order to fix the track plate and facilitate replacement, the locking block is a rhombus-shaped block. A cross-shaped groove is provided on the middle of one side of the rhombus-shaped block. A cross-shaped locking block 25 is provided on the handrail base corresponding to the cross-shaped groove. The rhombus-shaped block is limited by the cross-shaped groove and the cross-shaped locking block. A locking groove 26 is provided on the middle of the track plate corresponding to the rhombus-shaped block. That is, both the track plate and the rhombus-shaped block are fixed on the handrail base. The track plate is a replacement part. After wear, only the track plate needs to be replaced.

[0031] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0032] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0033] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0034] Furthermore, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in any of the technical solutions disclosed in this utility model are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this utility model include shapes that are similar to, close to, or approximate with it.

[0035] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A multi-angle adjustable handrail structure, characterized by: It includes a mounting cylinder, the upper end of which is rotatably connected to a handrail base, and a handrail structure is slidably attached to the handrail base.

2. The handrail structure of claim 1, wherein: A spherical joint structure is installed under the handrail base. The spherical joint structure is rotatably connected to the upper end of the mounting cylinder. A fastening structure for fixing the spherical joint structure is installed in the upper end of the mounting cylinder.

3. A handrail structure according to claim 2, characterised in that: The spherical joint structure includes a sphere, a connecting rod fixed to the outer periphery of the sphere, the other end of the connecting rod being connected to the lower end of the handrail base, and a constriction opening provided at the upper end of the mounting cylinder to prevent the sphere from falling out.

4. The handrail structure according to claim 3, characterized in that: The fastening structure includes a base washer, which is screwed into the mounting cylinder. The ball abuts against the base washer, and a groove is provided on the upper surface of the base washer corresponding to the ball.

5. A handrail structure according to claim 4, characterised in that: The fastening structure also includes an elastic locking ring, which is installed inside the mounting cylinder and above the base washer. A locking knob is screwed onto the outer wall of the mounting cylinder. The locking knob includes a cap, and a stud is installed on the inner side of the cap. The mounting cylinder has a screw hole corresponding to the elastic locking ring that mates with the stud.

6. The handrail structure of claim 1, wherein: The handrail structure includes a handrail base, a handrail cover plate is installed on the handrail base, and a limiting sliding structure that cooperates with the handrail base is installed on the handrail base.

7. A handrail structure according to claim 6, characterised in that: A sliding track groove is provided on the lower surface of the armrest base, and the limiting sliding joint structure slides into the sliding track groove.

8. The handrail structure of claim 7, wherein: The sliding track groove is composed of a straight track groove segment and a wavy track groove segment. The limiting sliding connection structure includes a track clamp plate, which slides in the sliding track groove. A clamping block is clamped in the middle of the track clamp plate, and the clamping block and the track clamp plate are screwed onto the handrail base.

9. A handrail structure according to claim 8, characterised in that: The narrowest distance of the wavy track groove segment is greater than the width of the straight track groove segment. The track clamping plate includes a rectangular plate body, the width of which corresponds to the width of the straight track groove segment. On the left and right sides of one end of the rectangular plate body, there are snap-fit ​​protrusions corresponding to the wavy track groove segment.

10. A handrail structure according to claim 8 or 9, characterised in that: The locking block is a rhombus-shaped block. A cross-shaped groove is provided on the middle of one side plate of the rhombus block. A cross-shaped locking block is provided on the handrail base corresponding to the cross-shaped groove. A locking groove is provided on the middle of the track plate corresponding to the rhombus block.

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