Rotating joint for umbrella

Abstract

The utility model discloses a rotary joint for an umbrella, which comprises a first connecting seat and a second connecting seat which are pivoted at the end part through a pivoting shaft, a plurality of positioning surfaces are arranged on the first connecting seat around the rotating direction of the second connecting seat, a threaded section is arranged on the second connecting seat, and a propping sleeve is in threaded fit with the threaded section. And the jacking sleeve rotates to jack the positioning surface so as to position the first connecting seat and the second connecting seat. The rotating joint for the umbrella is mounted between an upper rod and a lower rod of the umbrella, and is convenient to adjust, reliable in positioning and low in production and manufacturing cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of umbrellas, in particular to a rotary joint for umbrellas. Background Art

[0002] Umbrellas are a common tool for people to use outdoors for shade and shelter from the rain. Fishing umbrellas and beach umbrellas, in particular, are large and heavy, so they are typically secured to the ground directly via brackets or sockets. Most fishing umbrellas feature a connecting structure between the lower and upper poles, allowing them to be tilted at a specific angle, allowing for adjustable shade.

[0003] In the prior art, a commonly used structure is a universal joint for adjusting the angle, in which a bolt is pivoted between the connecting ends of the upper rod and the lower rod, and a nut is provided on the other side of the bolt. By tightening the nut, the upper rod and the lower rod are positioned at a certain angle. However, due to the heavy umbrella cover and the influence of wind, the angles of the upper rod and the lower rod are easily deflected.

[0004] Another example is CN220529464U, which discloses a fishing umbrella elbow. This elbow comprises a first connecting seat, one end of which is a male connector with a toothed structure and a first fixing hole provided on the male connector; a second connecting seat, one end of which is a connecting seat body; the connecting seat body is internally provided with a receiving cavity and a receiving groove, as well as a second fixing hole; and the surface of the connecting seat body is also provided with a first through-hole for mounting a button; a first spring is disposed within the receiving cavity; a slider is disposed within the receiving cavity, one end of which has meshing teeth that match the male connector; the middle portion of the slider body is a hollow structure for accommodating a connecting post at the bottom of the button; the male connector is inserted into the receiving groove and engages with the meshing teeth of the slider, and a fixing member passes through the fixing hole to connect the two connecting seats; the button is placed in the first through-hole; when the button is pressed, the connecting post drives the slider to move, separating or engaging with the male connector, thereby achieving a desired angle of the elbow. However, this fishing umbrella elbow has a complex structure, many parts, and high manufacturing costs. Summary of the Invention

[0005] The utility model aims to solve the problems in the prior art and provides a rotary joint for an umbrella. The rotary joint for an umbrella has the advantages of convenient structure adjustment, reliable positioning and low manufacturing cost.

[0006] In order to solve the above technical problems, the present invention solves them through the following technical solutions: a rotary joint for an umbrella, comprising a first connecting seat and a second connecting seat pivotally connected at the ends by a pivot axis, a plurality of positioning surfaces being provided on the first connecting seat around the rotation direction of the second connecting seat, a threaded section being provided on the second connecting seat, a tightening sleeve being threadedly fitted on the threaded section, and the tightening sleeve being rotated to tighten the positioning surfaces to position the first connecting seat and the second connecting seat. The swivel joint for an umbrella is installed between an upper rod and a lower rod of the umbrella, wherein the first connecting seat is connected to the upper rod and the second connecting seat is connected to the lower rod. In the positioning state, the tightening sleeve presses against the positioning surface, and the angles of the first connecting seat and the second connecting seat are fixed. When the angle of the umbrella needs to be adjusted, the tightening sleeve is rotated to move the tightening sleeve in a direction away from the first connecting seat, and then the first connecting seat can be rotated around the pivot axis. After the angle is adjusted, the tightening sleeve is rotated in the opposite direction to move the tightening sleeve in a direction close to the first connecting seat. After the tightening sleeve presses against the other positioning surface, the first connecting seat and the second connecting seat are fixed at another angle, thereby realizing the angle adjustment of the umbrella. The swivel joint structure for an umbrella is easy to adjust, has reliable positioning, and has low manufacturing cost.

[0007] In the above technical solution, preferably, a connecting shaft is axially provided on the second connecting seat, the connecting shaft extending into the first connecting seat, and is pivotally connected to the first connecting seat by a pivot shaft radially passing through the first connecting seat. A notch is provided at one end of the first connecting seat adjacent to the second connecting seat to accommodate the connecting shaft. This structure facilitates the pivotal installation of the first and second connecting seats.

[0008] In the above technical solution, preferably, the second connecting seat is axially provided with a connecting hole, the connecting shaft is inserted into the connecting hole, one end of the connecting shaft has a small-diameter threaded portion, the threaded portion axially passes through the connecting hole and is fixed by bolts, and the other end of the connecting shaft extends into the first connecting seat. This structure facilitates the installation of the connecting shaft to the second connecting seat. During installation, the small-diameter threaded portion of the connecting shaft is inserted into the connecting hole and fixed by bolts.

[0009] In the above technical solution, preferably, a gasket is provided between the connecting shaft and the second connecting seat and is sleeved on the outside of the threaded portion. This structure can effectively prevent the connecting shaft and the second connecting seat from loosening.

[0010] In the above technical solution, preferably, the outer periphery of the tightening sleeve is provided with an embossed pattern. This structure can increase the friction force outside the tightening sleeve and facilitate manual rotation of the tightening sleeve.

[0011] In the above technical solution, preferably, the end of the tightening sleeve close to the first connecting seat is an annular plane. The top of the tightening sleeve is an annular plane so that no matter what angle it rotates to, the positioning surface can always be stably pressed and positioned.

[0012] In the above technical solution, preferably, both the first connecting seat and the second connecting seat are provided with a limiting portion, and an extension sleeve for connecting the upper rod and the lower rod of the umbrella is provided outside the limiting portion.

[0013] Compared with the prior art, the utility model has the following beneficial effects: this umbrella rotary joint is installed between the upper rod and the lower rod of the umbrella, the first connecting seat is connected to the upper rod, and the second connecting seat is connected to the lower rod. In the positioning state, the tightening sleeve presses against the positioning surface, and the angles of the first connecting seat and the second connecting seat are fixed; when the angle of the umbrella needs to be adjusted, the tightening sleeve is rotated to move the tightening sleeve in a direction away from the first connecting seat, and then the first connecting seat can be rotated around the pivot axis. After the angle is adjusted, the tightening sleeve is rotated in the opposite direction to move the tightening sleeve in a direction close to the first connecting seat. After the tightening sleeve presses against the other positioning surface, the first connecting seat and the second connecting seat are fixed at another angle, thereby realizing the angle adjustment of the umbrella. This umbrella rotary joint structure is easy to adjust, has reliable positioning, and has low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0015] Figure 2 It is a schematic cross-sectional view of an embodiment of the present utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the embodiment of the utility model during bending and positioning.

[0017] Figure 4 This is a schematic diagram of the structure of the embodiment of the utility model when bent and positioned in another direction. DETAILED DESCRIPTION

[0018] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments: Figures 1 to 4A rotary joint for an umbrella includes a first connecting seat 1 and a second connecting seat 2 pivotally connected at the end by a pivot shaft 3. Four positioning surfaces 4 are provided on the first connecting seat 1 around the rotation direction of the second connecting seat 2. A threaded section 5 is provided on the second connecting seat 2. A tightening sleeve 6 is threadedly fitted on the threaded section 5. The tightening sleeve 6 can be rotated to tighten the positioning surface 4 to position the first connecting seat 1 and the second connecting seat 2. This umbrella rotary joint is installed between the upper rod 7 and the lower rod 8 of the umbrella, the first connecting seat 1 is connected to the upper rod 7, and the second connecting seat 2 is connected to the lower rod 8. In the positioning state, the tightening sleeve 6 presses the positioning surface 4, and the angle of the first connecting seat 1 and the second connecting seat 2 is fixed; when the angle of the umbrella needs to be adjusted, the tightening sleeve 6 is rotated to make the tightening sleeve 6 move in the direction away from the first connecting seat 1, and then the first connecting seat 1 can be rotated around the pivot axis 3. After adjusting the angle, the tightening sleeve 6 is rotated in the opposite direction to make the tightening sleeve 6 move in the direction close to the first connecting seat 1. After the tightening sleeve 6 presses the other positioning surface 4, the first connecting seat 1 and the second connecting seat 2 are fixed at another angle, thereby realizing the angle adjustment of the umbrella. This umbrella rotary joint structure is easy to adjust, reliable in positioning, and low in manufacturing cost.

[0019] In this embodiment, when one of the positioning surfaces 4 is pressed against the tightening sleeve 6, the first connecting seat 1 is kept upright around the second connecting seat 2, that is, Figure 1 Status, see Figure 1 , wherein two positioning surfaces 4 are located on the left side of the positioning surface 4 that is pressed against the tightening sleeve 6 in this state, and the other positioning surface 4 is located on the right side of the positioning surface 4 that is pressed against the tightening sleeve 6 in this state. The number and angle of the positioning surfaces 4 can be set according to needs.

[0020] In this embodiment, a connecting shaft 9 is axially disposed on the second connecting seat 2. The connecting shaft 9 extends into the first connecting seat 1 and is pivotally connected to the first connecting seat 1 by a pivot shaft 3 that radially passes through the first connecting seat 1. The pivot shaft 3 is radially and tightly penetrates the first connecting seat 1. A notch 10 is provided at the end of the first connecting seat 1 adjacent to the second connecting seat 2 to avoid the connecting shaft 9. This structure facilitates the pivotal installation of the first connecting seat 1 and the second connecting seat 2, and the provision of the notch 10 prevents the side of the first connecting seat 1 from interfering with the rotation of the connecting shaft 9.

[0021] In this embodiment, the second connecting base 2 is axially provided with a connecting hole 11, and the connecting shaft 9 is inserted into the connecting hole 11. One end of the connecting shaft 9 has a small-diameter threaded portion 12, which is axially extended through the connecting hole 11 and fixed by bolts 13. The other end of the connecting shaft 9 extends into the first connecting base 1. This structure facilitates the installation of the connecting shaft 9 onto the second connecting base 2. During installation, the small-diameter threaded portion 12 of the connecting shaft 9 is inserted into the connecting hole 11 and fixed by bolts 13.

[0022] A gasket 14 is provided between the connecting shaft 9 and the second connecting seat 2 and is sleeved on the outside of the threaded portion 12. This structure can effectively prevent the connecting shaft 9 and the second connecting seat 2 from loosening.

[0023] In this embodiment, the outer periphery of the tightening sleeve 6 is provided with an embossed pattern. This structure can increase the friction force outside the tightening sleeve 6 and facilitate manual rotation of the tightening sleeve 6.

[0024] In this embodiment, the end of the pressing sleeve 6 close to the first connecting seat 1 is an annular plane. The top of the pressing sleeve 6 is an annular plane so that no matter what angle it rotates to, the positioning surface 4 can always be stably pressed and positioned.

[0025] In this embodiment, both the first connecting base 1 and the second connecting base 2 are provided with a limiter 15. An extension sleeve 16 is disposed outside the limiter 15 for connecting the upper and lower rods 7 and 8 of the umbrella. The upper and lower rods 7 and 8 are respectively placed on the extension sleeves 16 on either side and secured with glue. In other embodiments, other fixing methods may also be used.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A rotary joint for an umbrella, characterized in that: The invention comprises a first connecting seat (1) and a second connecting seat (2) which are pivotally connected at the end through a pivot shaft (3); a plurality of positioning surfaces (4) are provided on the first connecting seat (1) around the rotation direction of the second connecting seat (2); a threaded section (5) is provided on the second connecting seat (2); a tightening sleeve (6) is threadedly engaged with the threaded section (5); the tightening sleeve (6) can be rotated to tighten the positioning surface (4) to position the first connecting seat (1) and the second connecting seat (2).

2. The umbrella rotary joint according to claim 1, characterized in that: A connecting shaft (9) is axially arranged on the second connecting seat (2), and the connecting shaft (9) extends into the first connecting seat (1). The connecting shaft (9) is pivotally connected to the first connecting seat (1) by a pivot shaft (3) radially passing through the first connecting seat (1). A notch (10) is provided at one end of the first connecting seat (1) close to the second connecting seat (2) to avoid the connecting shaft (9).

3. The umbrella rotary joint according to claim 2, characterized in that: The second connecting seat (2) is axially provided with a connecting hole (11), the connecting shaft (9) is inserted into the connecting hole (11), one end of the connecting shaft (9) has a threaded portion (12) with a small diameter, the threaded portion (12) axially passes through the connecting hole (11) and is fixed by a bolt (13), and the other end of the connecting shaft (9) extends into the first connecting seat (1).

4. The umbrella rotary joint according to claim 3, characterized in that: A gasket (14) sleeved on the outside of the threaded portion (12) is provided between the connecting shaft (9) and the second connecting seat (2).

5. The umbrella rotary joint according to claim 1, characterized in that: The outer periphery of the tightening sleeve (6) is provided with an embossed pattern.

6. The umbrella rotary joint according to claim 1, characterized in that: One end of the tightening sleeve (6) close to the first connecting seat (1) is an annular plane.

7. The umbrella rotary joint according to claim 1, characterized in that: A limiting portion (15) is provided on both the first connecting seat (1) and the second connecting seat (2), and an extension sleeve (16) for connecting the upper rod (7) and the lower rod (8) of the umbrella is provided outside the limiting portion (15).

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