Rotary connecting mechanism of supporting device

Abstract

The utility model discloses a rotary connecting mechanism of a supporting device, which is characterized by comprising a first supporting piece, a second supporting piece, a positioning sleeve and a rotary connecting piece, the rotary connecting piece is provided with two elastic clamping arms which are oppositely arranged, and the bottom ends of the two elastic clamping arms are connected through an arc-shaped connecting wall. An installation concave cavity which is through in the front-back direction and provided with an opening in the upper portion is formed between the two elastic clamping arms and the connecting wall, anti-disengaging limiting convex ribs are arranged on the opposite end faces of the two elastic clamping arms in a protruding mode respectively, and the installation concave cavity is divided into an upper connecting cavity and a lower connecting cavity from top to bottom through the anti-disengaging limiting convex ribs. The mounting end of the second supporting piece is mounted in the upper connecting cavity, the positioning sleeve is fixedly mounted on the first supporting piece and rotatably mounted in the lower connecting cavity, an opening is formed between the two anti-falling limiting convex ribs, and the width of the opening in the left-right direction is smaller than the outer diameter of the positioning sleeve. The device has the advantages of simple structure and easy assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary connection mechanism, especially a rotary connection mechanism of a supporting device. BACKGROUND

[0002] The supporting device is a device for supporting a main part, such as a supporting frame for an outdoor sun umbrella or a canopy, which is usually composed of a first supporting part and a second supporting part, and the second supporting part is connected with the first supporting part through a corresponding connecting mechanism. In order to adjust the angle of the main part to be supported, the connecting mechanism needs to realize the relative rotatable connection between the first supporting part and the second supporting part, and then the mechanism is defined as a rotary connection mechanism. The existing rotary connection mechanism has a relatively complex structure and is composed of at least three or more components to realize the rotatable connection between the two supporting parts, which makes the manufacturing and assembly process more complex and results in a higher use cost. SUMMARY

[0003] The utility model provides a rotary connection mechanism of a supporting device, which has a simple structure, is easy to manufacture and assemble, and has a lower use cost.

[0004] The utility model adopts the technical scheme that:

[0005] The rotary connection mechanism of the supporting device comprises a first supporting part, a second supporting part, a positioning sleeve and a rotary connecting part. The rotary connecting part has two opposite elastic clamping arms. The bottom ends of the two elastic clamping arms are connected through an arc-shaped connecting wall. An installation concave cavity that is open at the top and penetrates from front to back is formed between the two elastic clamping arms and the connecting wall. Anti-disengagement limiting ribs are protrusively arranged on the opposite end faces of the two elastic clamping arms. The anti-disengagement limiting ribs divide the installation concave cavity into an upper connecting chamber and a lower connecting chamber from top to bottom. The installation end of the second supporting part is installed in the upper connecting chamber. The positioning sleeve is fixedly installed on the first supporting part and rotatably installed in the lower connecting chamber. An opening is formed between the two anti-disengagement limiting ribs. The width of the opening in the left-right direction is smaller than the outer diameter of the positioning sleeve.

[0006] The front end and the rear end of the positioning sleeve are respectively protrusively provided with limiting rings. The rotary connecting part is arranged between the two limiting rings, and the front and rear limiting installation of the rotary connecting part is realized through the two limiting rings.

[0007] At least one end face of the limiting ring is provided with a scale for indicating the rotation angle. An indicating arrow is correspondingly arranged on the end face of the connecting wall.

[0008] Two said anti-off limiting ribs are opposite and set up directly.

[0009] The vertical distance between the protruding top of the anti-off limiting rib and the bottom end of the connecting wall in the up-down direction is less than the outer diameter of the positioning sleeve.

[0010] The outer wall surface of the positioning sleeve is axially protruded with a positioning rib, the outer wall surface of the positioning sleeve forms a C-shaped concave ring, and the anti-off limiting rib is embedded in the C-shaped concave ring.

[0011] The upper end surface of the anti-off limiting rib is an inclined end surface that inclines inward from top to bottom.

[0012] The lower end surface of the anti-off limiting rib is an arc-shaped wall surface that converges inward from bottom to top.

[0013] The mounting end of the second support is rotatably mounted between the two elastic clamping arms.

[0014] Compared with the prior art, the mechanism for realizing the rotational connection and installation of the first support and the second support is only composed of a positioning sleeve and a rotational connecting piece, the structure is simple, and the mechanism is easy to manufacture and assemble, specifically, the positioning sleeve is first fixedly installed on the first support, then the positioning sleeve with the first support is clamped into the rotational connecting piece, the positioning sleeve is limitedly installed in the lower connecting chamber through the two anti-off limiting ribs, finally, the mounting end of the second support is installed into the upper connecting chamber, and the overall assembly is completed, the number of parts is small, the assembly efficiency is high, and the use cost is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a first cross-sectional structure schematic view of the utility model in which the rotational connecting piece and the positioning sleeve are connected in cooperation;

[0017] Figure 3 It is a cross-sectional structure schematic view of the utility model in which the rotational connecting piece is connected in cooperation;

[0018] Figure 4 It is a second cross-sectional structure schematic view of the utility model in which the rotational connecting piece and the positioning sleeve are connected in cooperation;

[0019] Figure 5 It is a three-dimensional structure schematic view of the utility model in which the positioning sleeve is connected in cooperation;

[0020] Figure 6 It is a cross-sectional structure schematic view of the utility model in which the positioning sleeve is connected in cooperation;

[0021] Fig. 7 (a) and (b) are sectional view structure schematic diagrams of the rotating connecting piece and the positioning sleeve cooperating connection at different rotating angles of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be described in further detail below in combination with the embodiment of the drawings.

[0023] As shown in the figure, a rotating connecting mechanism of a supporting device, comprising a first supporting piece 1, a second supporting piece 2, a positioning sleeve 3 and a rotating connecting piece 4, the rotating connecting piece 4 has two opposite elastic clamping arms 41, the bottom ends of the two elastic clamping arms 41 are connected through an arc-shaped connecting wall 42, a front and rear through and upper opening installation concave cavity 40 is formed between the two elastic clamping arms 41 and the connecting wall 42, the opposite end faces of the two elastic clamping arms 41 are respectively provided with anti-disengagement limiting protruding ribs 43, the anti-disengagement limiting protruding ribs 43 divide the installation concave cavity 40 into an upper connecting chamber 401 and a lower connecting chamber 402 from top to bottom, the installation end of the second supporting piece 2 is installed in the upper connecting chamber 401, the positioning sleeve 3 is fixedly installed on the first supporting piece 1 and rotatably installed in the lower connecting chamber 402, an opening 430 is formed between the two anti-disengagement limiting protruding ribs 43, and the width L of the opening 430 in the left-right direction is less than the outer diameter D of the positioning sleeve 3.

[0024] In this embodiment, in order to prevent the disengagement of the rotating connecting piece 4 and the positioning sleeve 3 in the front and rear directions, limiting rings 31 are respectively provided on the front end and the rear end of the positioning sleeve 3, so that the rotating connecting piece 4 is installed between the two limiting rings 31, thereby realizing the stable rotating connection and installation of the two.

[0025] In this embodiment, in order to realize the intuitive visualization of the rotating angle, a scale 311 for indicating the rotating angle is arranged on the end face of at least one limiting ring 31, and a corresponding indicating arrow 421 is arranged on the corresponding end face of the connecting wall 42, and through the cooperation of the indicating arrow 421 and the scale 311 for indicating the rotating angle, the rotating angle can be intuitively read.

[0026] In this embodiment, the two anti-disengagement limiting protruding ribs 43 are oppositely arranged in the left-right direction. It is easy to manufacture, and it is easy to form a cavity for the rotating installation of the positioning sleeve 3.

[0027] In this embodiment, the vertical distance H between the protruding top end of the anti-disengagement limiting protruding rib 43 and the bottom end of the connecting wall 42 in the up-down direction is less than the outer diameter D of the positioning sleeve 3. Part of the positioning sleeve 3 is located in the upper connecting chamber 401, and through the anti-disengagement limiting protruding rib 43, the anti-disengagement and limiting of the installation of the positioning sleeve 3 are realized, and at the same time, the positioning sleeve 3 cannot move in the up-down direction, that is, it is ensured that the positioning sleeve 3 can only rotate in the rotating connecting piece 4.

[0028] In this specific embodiment, the outer wall surface of the positioning sleeve 3 is axially provided with a positioning rib 32, which forms a C-shaped concave ring 33 in the outer wall surface of the positioning sleeve 3, and the anti-disengagement limiting rib 43 is embedded in the C-shaped concave ring 33. Through the arrangement of the positioning rib 32, the rotation has a certain positioning, rather than unlimited 360° arbitrary rotation.

[0029] In this specific embodiment, in order to facilitate the easy installation of the positioning sleeve 3, the upper end surface 431 of the anti-disengagement limiting rib 43 is designed as an inclined end surface that is inclined inward from top to bottom.

[0030] In this specific embodiment, in order to better fit the lower connecting chamber 402 with the outer wall surface of the positioning sleeve 3, the lower end surface 432 of the anti-disengagement limiting rib 43 is designed as an arc-shaped wall surface that is inwardly folded from bottom to top.

[0031] In this specific embodiment, the mounting end of the second support 2 is rotatably mounted between the two elastic clamping arms 41. The hinged installation of the second support 2 is achieved, forming multi-azimuth angle adjustment.

[0032] In this specific embodiment, the first support 1 and the positioning sleeve 3 are detachably fixedly connected through a detachable connecting member such as a rivet or a screw, which is installed in the rotating connecting member 4, realizing the hidden installation of these detachable connecting members, and improving the overall structural compactness and aesthetics.

[0033] In this specific embodiment, the installation position of the detachable connecting member is arranged on the positioning rib 32, which has sufficient strength and does not affect the rotation of the positioning sleeve 3.

Claims

1. A rotating connection mechanism of a supporting device, characterized in that The rotatable connecting member comprises a first support member, a second support member, a positioning sleeve and a rotating connecting member, wherein the rotating connecting member has two elastic clamping arms arranged opposite to each other, the bottom ends of the two elastic clamping arms are connected by an arc-shaped connecting wall, and a mounting cavity that is through-through and open at the top is formed between the two elastic clamping arms and the connecting wall, and anti-slip limiting ribs are respectively raised on the opposite end surfaces of the two elastic clamping arms, and the anti-slip limiting ribs separate the mounting cavity from top to bottom into an upper connecting chamber and a lower connecting chamber, and the mounting end of the second support member is mounted in the upper connecting chamber, the positioning sleeve is fixedly mounted on the first support member and rotatably mounted in the lower connecting chamber, and an opening is formed between the two anti-slip limiting ribs, and the width of the opening in the left and right directions is smaller than the outer diameter of the positioning sleeve.

2. A rotary connection mechanism for a support device according to claim 1, characterized in that The front and rear ends of the positioning sleeve are respectively provided with raised limit rings, and the rotating connector is arranged between the two limit rings. The front and rear limit installation of the rotating connector is achieved through the two limit rings.

3. A rotary connection mechanism for a supporting device according to claim 2, characterized in that A scale for indicating the rotation angle is provided on the end face of at least one of the limiting rings, and an indicating arrow is correspondingly provided on the end face of the connecting wall.

4. The rotary connection mechanism of a support device according to claim 1, characterized in that The two anti-slip limiting ribs are arranged opposite to each other on the left and right sides.

5. A rotary connection mechanism for a supporting device according to claim 4, characterized in that The vertical distance between the protruding top of the anti-slip limiting rib and the bottom end of the connecting wall in the up-down direction is smaller than the outer diameter of the positioning sleeve.

6. A rotary connection mechanism for a supporting device according to claim 5, characterized in that The outer wall surface of the positioning sleeve is provided with a positioning rib along the axial protrusion. The positioning rib forms a C-shaped concave ring on the outer wall surface of the positioning sleeve. The anti-slip limiting rib is embedded in the C-shaped concave ring.

7. The rotary connection mechanism of a support device according to claim 1, characterized in that The upper end surface of the anti-slip limiting rib is an oblique end surface that tilts inward from top to bottom.

8. A rotary connection mechanism for a supporting device according to claim 1 or 7, characterized in that The lower end surface of the anti-slip limiting rib is an arc-shaped wall surface that converges inward from bottom to top.

9. The rotary connection mechanism of a support device according to claim 1, characterized in that The mounting end of the second support member can be rotatably mounted between the two elastic clamping arms.

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