Connecting structure of umbrella rod

Abstract

The utility model relates to the technical field of sunshade structural members, in particular to an umbrella rod connecting structure which comprises a sleeve, a locking wrench, a locking clamp, a first rotating shaft and a protective ring. A mounting groove is formed in the periphery of the middle of the sleeve, and the protective ring is coaxially arranged in the sleeve and corresponds to the mounting groove in position. The protective ring is arranged in the mounting groove, the locking clamp is movably arranged in the mounting groove and is in surface contact with the protective ring, the locking wrench is rotationally arranged in the mounting groove and on the outer side of the locking clamp through a first rotating shaft, and at least part of the locking wrench is pressed against the locking clamp. And the umbrella rod can be prevented from being damaged by the connecting structure due to too large pressing force.

Description

Technical Field

[0001] This utility model relates to the technical field of sunshade umbrella structural components, specifically to a connection structure for an umbrella pole. Background Technology

[0002] Sun umbrellas are a common outdoor accessory for sun, rain, and wind protection. For ease of use, existing sun umbrellas typically feature extendable tubular shafts, allowing users to adjust the shaft length to suit different usage scenarios. Existing technology, such as the patent with publication number CN2438361Y, discloses a shaft connection locking device. This device uses a movable handle and locking block on a sleeve. Rotating the handle presses the locking block against the outer wall of the shaft, locking the shaft in place. However, this patent has a drawback: the contact area between the locking block and the shaft's outer wall is too small. In actual use, to prevent slippage due to excessive weight of the umbrella head, the handle needs to be tightened more forcefully to increase the pressure between the locking block and the shaft. This can easily cause excessive pressure on the shaft's outer wall, leading to deformation and damage to the paint. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a connecting structure for umbrella poles that can increase the contact surface between the connecting structure and the outer periphery of the umbrella pole. This not only prevents slipping but also avoids damage to the umbrella pole caused by excessive pressure on the connecting structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a connecting structure for an umbrella pole, comprising a sleeve, a locking wrench, a locking clamp, a first rotating shaft, and a protective ring; the sleeve has an installation groove on its outer periphery in the middle, the protective ring is coaxially disposed inside the sleeve and corresponds to the position of the installation groove; the locking clamp is movably disposed inside the installation groove and in surface contact with the protective ring, the locking wrench is rotatably disposed inside the installation groove and outside the locking clamp via the first rotating shaft, and the locking wrench is at least partially pressed against the locking clamp.

[0005] Preferably, it further includes a second rotating shaft; the first end of the locking clamp is rotatably connected to the sleeve via the second rotating shaft; the first rotating shaft is located on the opposite side of the second rotating shaft; the first end of the locking wrench presses against the tail end of the locking clamp.

[0006] Preferably, the locking clamp is an arc-shaped plate structure.

[0007] Preferably, a limiting groove is formed on the inner side of the sleeve; the protective ring is disposed in the limiting groove.

[0008] Preferably, the limiting groove corresponds to the mounting groove.

[0009] Preferably, the outer diameter of the retaining ring is larger than the inner diameter of the sleeve body, and the inner diameter of the retaining ring is not larger than the inner diameter of the sleeve body.

[0010] Preferably, the locking clamp tail end is located between the first rotating shaft and the sleeve.

[0011] Preferably, a slot is provided on the inner side of the rear end of the sleeve.

[0012] Preferably, the mounting groove has a C-shaped structure with an arc shape.

[0013] Preferably, the retaining ring is made of rubber or silicone.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a locking wrench, a locking clamp, and a soft protective ring on the sleeve, wherein the protective ring is located on the inner side of the sleeve, the locking clamp is located on the outer periphery of the sleeve and in surface contact with the sleeve, and the locking wrench is located on the outer side of the locking clamp, rotating the locking wrench can press the locking clamp, and the locking clamp, when compressed, presses the protective ring, and the protective ring retracts to clamp the umbrella shaft. Under the action of the locking clamp, the contact area between the protective ring and the outer periphery of the umbrella shaft is greatly increased. This connection structure not only has the advantages of being non-slip and easy to use, but also avoids the situation where the umbrella shaft is dented and deformed due to the insufficient pressing area and damage to the paint surface of the outer wall of the umbrella shaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0016] Figure 2 This is a schematic diagram of the sleeve structure of this utility model;

[0017] Figure 3 A schematic diagram of the connection structure of this utility model after removing the fastening wrench;

[0018] Figure 4 This is a schematic diagram of the connection structure of this utility model in use.

[0019] In the diagram: 1. Sleeve, 2. Locking wrench, 3. Locking clamp, 4. First rotating shaft, 5. Second rotating shaft, 6. Protective ring, 7. Lower umbrella pole, 8. Upper umbrella pole, 11. Mounting groove, 12. Limiting groove, 13. Connecting slot. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0021] See Figure 1-4In one embodiment of this utility model, a connecting structure for an umbrella pole includes: a sleeve 1, a locking wrench 2, a locking clamp 3, a first rotating shaft 4, a second rotating shaft 5, and a protective ring 6. The protective ring 6 is located inside the sleeve 1. The locking clamp 3 is movably mounted on the sleeve 1 via the second rotating shaft 5, and the locking clamp 3 is in surface contact with the protective ring 6. The locking wrench 2 is an eccentric wrench, which is movably mounted on the sleeve 1 via the first rotating shaft 4 and located outside the locking clamp 3. In use, by rotating the locking wrench 2, under the action of eccentricity, the locking wrench 2 gradually presses the locking clamp 3. After being squeezed, the locking clamp 3 presses the protective ring 6, causing the inner diameter of the protective ring 6 to shrink, thereby locking the umbrella pole inserted into the inner side of the protective ring 6.

[0022] Specifically, the umbrella pole consists of a lower umbrella pole 7 and an upper umbrella pole 8. Through this connecting structure, the lower umbrella pole 7 and the upper umbrella pole 8 can be retractably connected.

[0023] The sleeve 1 is generally tubular in shape, with an installation groove 11 on the outer side of its middle part that communicates with the inner space. The installation groove 11 is opened along the axis of the sleeve 1 and is approximately a C-shaped structure with a large arc. A limiting groove 12 is opened on the inner side of the sleeve 1 opposite to the installation groove 11. The axial dimension of the limiting groove 12 is adapted to the axial dimension of the protective ring 6. The protective ring 6 is located in the limiting groove 12. The outer diameter of the protective ring 6 is larger than the inner diameter of the sleeve 1, and the inner diameter of the protective ring 6 is not larger than the inner diameter of the sleeve 1 body. This dimensional limiting makes the position of the protective ring 6 relatively stable. It can be understood that the protective ring 6 can rotate circumferentially relative to the sleeve 1 in the limiting groove 12 but cannot slide axially.

[0024] The first rotating shaft 4 and the second rotating shaft 5 are both installed in the limiting groove 12, and the first rotating shaft 4 and the second rotating shaft 5 are respectively placed on both sides of the shaft of the sleeve 1.

[0025] A slot 13 is provided on the inner side of the rear end of the sleeve 1. The slot 13 is coaxial with the body of the sleeve 1. The slot 13 forms a limiting step on the inner side of the sleeve 1. In use, the lower umbrella rod 7 is inserted into the sleeve 1, and the end of the lower umbrella rod 7 is pressed against the limiting step, which is the bottom of the slot 13. Figure 4 As can be seen, the outer diameter of the lower umbrella rod 7 is larger than the inner diameter of the front end of the sleeve 1 and must be compatible with the inner diameter of the rear end of the sleeve 1. In this way, the connection structure can achieve initial positioning.

[0026] The locking clip 3 is movably mounted in the mounting groove 11 via the second rotating shaft 5, ensuring the inner ring of the sleeve 1 is intact. In other words, the locking clip 3 needs to have a slightly curved plate structure. At the same time, the inner side of the locking clip 3 and the outer circumference of the protective ring 6 are in surface contact with each other. The protective ring 6 is stabilized in the limiting groove under the action of the locking clip 3. Furthermore, in order to provide sufficient retraction space, the first end of the locking clip 3 is rotatably connected to the sleeve 1 via the second rotating shaft 5, and the tail end of the locking clip 3 extends between the first rotating shaft 4 and the sleeve 1. The tail end of the locking clip 3 can move within a limited range between the first rotating shaft 4 and the sleeve 1 to meet the retraction requirements of the protective ring 6.

[0027] The locking wrench 2 is movably covered in the mounting groove 11. The head end of the locking wrench 2 is rotatably connected to the sleeve 1 through the first rotating shaft 4. At the same time, the head end of the locking wrench 2 is at least partially pressed against the tail end of the locking clamp 3. The head end of the locking wrench 2 is eccentric. The locking clamp 3 can be pressed by rotating the locking wrench 2, which is convenient and quick.

[0028] In one embodiment, the retaining ring 6 can be made of elastic rubber or silicone.

[0029] In use, one end of the upper umbrella pole 8 is inserted into the sleeve 1 and extends into the lower umbrella pole 7. At this time, the protective ring 6 is fitted onto the upper umbrella pole 8. Rotating the locking wrench 2 can press the locking clip 3. After the locking clip 3 is compressed, it presses the protective ring 6, causing the inner diameter of the protective ring 6 to shrink and keep the upper umbrella pole 8 fixed. Releasing the locking wrench 2 can release the lock, and the lower umbrella pole 7 and the upper umbrella pole 8 will resume their sliding connection. This allows the length of the umbrella pole to be adjusted to achieve the telescopic function. Through this connection structure, the length of the umbrella pole can be easily adjusted so that the sun umbrella can adapt to different usage scenarios.

[0030] This technical solution involves installing a locking wrench, a locking clamp, and a flexible protective ring on the sleeve. The protective ring is located inside the sleeve, the locking clamp is located on the outer periphery of the sleeve and makes surface contact with the sleeve, and the locking wrench is located outside the locking clamp. Rotating the locking wrench can tighten the locking clamp, and the locking clamp, when compressed, tightens the protective ring. The protective ring retracts and clamps the umbrella shaft. Under the action of the locking clamp, the contact area between the protective ring and the outer periphery of the umbrella shaft is greatly increased. This not only provides the advantages of anti-slip and ease of use, but also avoids the situation where the umbrella shaft is dented and deformed due to insufficient pressing area and damage to the paint surface of the outer wall of the umbrella shaft.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A connecting structure for an umbrella pole, characterized in that: It includes a sleeve (1), a locking wrench (2), a locking clamp (3), a first rotating shaft (4), and a retaining ring (6); the sleeve (1) has an installation groove (11) on its outer periphery in the middle, and the retaining ring (6) is coaxially disposed in the sleeve (1) and corresponds to the position of the installation groove (11); the locking clamp (3) is movably disposed in the installation groove (11) and is in surface contact with the retaining ring (6); the locking wrench (2) is rotatably disposed in the installation groove (11) and outside the locking clamp (3) through the first rotating shaft (4), and the locking wrench (2) is at least partially pressed against the locking clamp (3).

2. The connecting structure for an umbrella pole according to claim 1, characterized in that: It also includes a second rotating shaft (5); the first end of the locking clamp (3) is rotatably connected to the sleeve (1) through the second rotating shaft (5); the first rotating shaft (4) is located on the opposite side of the second rotating shaft (5); the first end of the locking wrench (2) is pressed against the tail end of the locking clamp (3).

3. The connecting structure for an umbrella pole according to claim 1, characterized in that: The locking clamp (3) is an arc-shaped plate structure.

4. The connecting structure for an umbrella pole according to claim 1, characterized in that: A limiting groove (12) is provided on the inner side of the sleeve (1); the protective ring (6) is provided in the limiting groove (12).

5. The connecting structure for an umbrella pole according to claim 4, characterized in that: The limiting groove (12) corresponds to the mounting groove (11).

6. The connecting structure for an umbrella pole according to claim 4, characterized in that: The outer diameter of the protective ring (6) is greater than the inner diameter of the sleeve (1) body, and the inner diameter of the protective ring (6) is not greater than the inner diameter of the sleeve (1) body.

7. The connecting structure for an umbrella pole according to claim 2, characterized in that: The tail end of the locking clamp (3) is located between the first rotating shaft (4) and the sleeve (1).

8. The connecting structure for an umbrella pole according to claim 1, characterized in that: The sleeve (1) has a slot (13) on the inner side of its rear end.

9. The connecting structure for an umbrella pole according to claim 1, characterized in that: The mounting groove (11) has a C-shaped structure with an arc shape.

10. The connecting structure of an umbrella pole according to claim 1, characterized in that: The protective ring (6) is made of rubber or silicone.

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