Umbrella rib joint structure

Abstract

The utility model discloses an umbrella rib joint structure which comprises a first base and a second base which are arranged on two umbrella ribs respectively, the first base and the second base are rotationally connected through a first rotating shaft, the second base is provided with a first limiting part and a second limiting part, the first limiting part faces the arc-shaped unfolding direction of the second base, and the second limiting part faces the arc-shaped unfolding direction of the second base. The second limiting part faces the arc-shaped folding direction of the second base, and the first base is provided with a limiting piece which is detachably blocked on the second limiting part; the first base is provided with a third limiting part abutting against the first limiting part, and therefore the umbrella ribs are locked in the unfolded state. The umbrella has the advantages that after the umbrella ribs are unfolded, the umbrella ribs can abut against the second limiting parts through the limiting pieces, the third limiting parts abut against the first limiting parts, the unfolding state of the first base and the unfolding state of the second base are firmly locked, and the unfolding state of the first base and the unfolding state of the second base are also the locking state of the adjacent umbrella ribs. The locking state is the locking state of the adjacent umbrella ribs.

Description

Technical Field

[0001] The invention belongs to the field of umbrellas, and in particular relates to an umbrella rib joint structure. Background Art

[0002] Umbrellas are commonly used rainproof tools in daily life. Their main structure includes two parts: umbrella cloth and umbrella ribs. As an important component of supporting the umbrella cloth, umbrella ribs directly affect the service life and functionality of the umbrella. Most umbrella rib structures on the market currently adopt the traditional opening and closing design, that is, the opening and closing of the umbrella are realized through a certain mechanical structure. This type of umbrella rib structure is usually composed of multiple umbrella ribs connected by joints, so that the umbrella cloth can be unfolded when opened and folded when folded. For example, in the patent with announcement number CN221105023U and invention name "A rib structure of a hand-pushing umbrella", it is disclosed that one end of the second connecting rod is hinged to the connecting sleeve, which enables the umbrella to be folded and stored.

[0003] However, the traditional opening and closing umbrella rib structure has some obvious defects. First, due to improper design of the connection mechanism at the joint or long-term use, the ribs are prone to get stuck or damaged when opening or closing, which greatly shortens the service life of the umbrella. Secondly, when the opening and closing structure is closed, the ribs are often unable to be firmly locked in a certain position, which can easily cause unnecessary loosening of the umbrella cloth or looseness of the overall structure, affecting the appearance and comfort of the umbrella.

[0004] Therefore, how to design a new type of umbrella rib joint structure that can effectively solve the above problems and improve the service life and stability of the umbrella has become one of the important directions of current umbrella rib technology research. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an umbrella rib joint structure which can firmly lock the unfolded state of the umbrella ribs after the umbrella ribs are unfolded, in view of the current status of the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: an umbrella rib joint structure, comprising a first base and a second base respectively arranged on two umbrella ribs, the first base and the second base are rotatably connected through a first rotating shaft, the second base is provided with a first limiting part, a second limiting part, and a movable limiting member; the first limiting part faces the direction of arc-shaped expansion of the second base, the second limiting part faces the direction of arc-shaped folding of the second base, the first base is provided with a removable limiting member blocking the second limiting part; the first base is provided with a third limiting part pressed against the first limiting part, so that the umbrella rib is locked in the expanded state. The advantage is that after the umbrella rib is expanded, the limiting member can press against the second limiting part, and the third limiting part presses against the first limiting part, so as to firmly lock the expanded state of the first base and the second base, that is, the locked state of the adjacent umbrella ribs.

[0007] In a preferred solution, the first base is further provided with an elastic reset member capable of pressing the limiter against the limit portion, so that the limiter can automatically rebound and press against the limit portion after the ribs are fully unfolded. The elastic reset member can be made of elastic rubber, spring, torsion spring, etc.

[0008] In a preferred solution, a second rotating shaft is provided between the first base and the limiting member, the second rotating shaft is perpendicular to the first rotating shaft, and the limiting portion is located on a folded side of the second base.

[0009] In another solution, the second limiting portion is located on a side where the second base is unfolded.

[0010] In a preferred solution, a second rotating shaft is provided between the first base and the limiting member, and the second rotating shaft is parallel to the first rotating shaft.

[0011] In a preferred solution, a protrusion is provided on the second base, and the first limiting portion and the second limiting portion are respectively located on the protrusion, so that it is not easy to slip.

[0012] In addition to using a raised structure, a recessed structure may also be provided, that is, the second limiting portion is a recessed portion provided on the second base, and after the ribs are fully unfolded, the limiting member is pressed against the second limiting portion; the limiting member is provided with an arc surface matching the second limiting portion.

[0013] The lever-type limiting member includes a pressing end protruding from the first base, which is used to drive the limiting member to separate from the limiting portion by utilizing the lever principle after being pressed.

[0014] In addition to the lever-type limiting member, there is also a pin-type limiting member, which is provided with a sliding hole on the first base for the limiting member to slide, and the second limiting part is located on the folded side of the second base.

[0015] In a preferred solution, the elastic reset member is a spring sleeved on the limiting member and clamped between the limiting member and the first base.

[0016] In summary, compared with the prior art, the present invention has the advantage of being able to firmly lock the expanded state after the umbrella ribs are expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the second base of the first embodiment when it is unfolded;

[0018] Figure 2 yes Figure 1 Schematic diagram of the decomposition of

[0019] Figure 3 is a schematic diagram of the working principle of the limiting member of the first embodiment being separated from the second limiting portion;

[0020] Figure 4 is a schematic diagram of the structure of the second base of the first embodiment when it is folded;

[0021] Figure 5 is a schematic diagram of a locked state of Embodiment 2;

[0022] Figure 6 yes Figure 5 Schematic diagram of the decomposition of

[0023] Figure 7 is a schematic diagram of the unlocked state of the rotation limiter of the third embodiment;

[0024] Figure 8 is a schematic diagram of locking the second base in Embodiment 3;

[0025] Fig. 9 It is a schematic diagram of the structure in which the limiting member is locked on the limiting portion in the fourth embodiment. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0027] The accompanying drawings are marked as follows: first base 1, sliding hole 11, second base 2, limiting member 3, pressing end 31, elastic reset member 4, first rotating shaft 5, second rotating shaft 6, protrusion 7, first limiting portion 71, second limiting portion 72, third limiting portion 73.

[0028] Embodiment 1, as Figures 1 to 4 As shown, an umbrella rib joint structure comprises a first base 1 and a second base 2 respectively arranged on two umbrella ribs, the first base 1 and the second base 2 are rotatably connected by a first rotating shaft 5, the second base 2 is provided with a first limiting portion 71, a second limiting portion 72, and a movable limiting member 3; the first limiting portion 71 faces the direction of arc-shaped expansion of the second base 2, the second limiting portion 72 faces the direction of arc-shaped folding of the second base 2, the first base 1 is provided with a removable limiting member 3 blocking the second limiting portion 72; the first base 1 is provided with a third limiting portion 73 pressed against the first limiting portion 71, so that the umbrella rib is locked in the expanded state. The advantage is that after the umbrella rib is expanded, the limiting member 3 can press against the second limiting portion 72, and the third limiting portion 73 presses against the first limiting portion 71, so as to firmly lock the expanded state of the first base 1 and the second base 2, that is, the locked state of the adjacent umbrella ribs.

[0029] In the embodiment, an elastic reset member 4 capable of pressing the limit member 3 against the limit portion is further provided on the first base 1, so that the limit member 3 can automatically rebound and press against the limit portion after the umbrella ribs are fully unfolded.

[0030] In the embodiment, the second limiting portion 72 is located at a side where the second base 2 is unfolded.

[0031] In a preferred solution, a second rotating shaft 6 is provided between the first base 1 and the limiting member 3 , and the second rotating shaft 6 is parallel to the first rotating shaft 5 , which is a lever-type limiting member 3 .

[0032] In a preferred solution, a protrusion 7 is provided on the second base 2, and the first limiting portion 71 and the second limiting portion 72 are respectively located on the protrusion 7, so that it is not easy to slip.

[0033] The lever-type limiting member 3 includes a pressing end 31 protruding from the first base 1, which is used to drive the limiting member 3 to separate from the limiting portion by lever principle after being pressed.

[0034] The process of the first embodiment is as follows: Figure 4 As shown, the second base 2 gradually unfolds around the first rotation axis 5. Figure 3 As shown, the protrusion 7 pushes the limiter 3, and the limiter 3 compresses the elastic reset member 4 at the same time. Figure 1 As shown, when the protrusion 7 hits the third limiting portion 73 , the limiting member 3 returns to its original position to press against the protrusion 7 , thereby completing the unfolding and locking of the second base 2 .

[0035] Embodiment 1 Folding and storage process: Figure 3 As shown, the pressing end 31 is moved to disengage the limiting member 3 from the second limiting portion 72, and the second base 2 loses its limit in the folding and retracting direction, and the second base 2 can be freely rotated and folded and retracted, as shown in FIG. Figure 4 shown.

[0036] Embodiment 2: The structure of embodiment 2 is similar to that of embodiment 1 except that there is no protrusion 7. Figure 5 , 6 As shown, the second limiting portion 72 is a pit provided on the second base 2, and after the ribs are fully unfolded, the limiting member 3 presses against the second limiting portion 72; the limiting member 3 is provided with an arc surface matching the second limiting portion 72; the first limiting portion 71 is located on the outer wall of the second base 2, and the first limiting portion 71 is located on any contact surface on the first base 1 that presses against the second base 2. The unfolding and folding storage process of the second embodiment is the same as that of the first embodiment.

[0037] Embodiment 3: A second rotating shaft 6 is also provided between the first base 1 and the stopper 3 of Embodiment 3, but the difference from Embodiment 1 and Embodiment 2 is that the second rotating shaft 6 is perpendicular to the first rotating shaft 5, and the stopper is located on the side where the second base 2 is folded. Figure 7 and Figure 8 The unfolding and folding process of the third embodiment is the same as that of the first embodiment.

[0038] In the fourth embodiment, in addition to the lever-type limiting member 3, there is also a pin-type limiting member 3, which is provided with a sliding hole 11 for the limiting member 3 to slide on the first base 1, and the second limiting portion 72 is located on the folded side of the second base 2, such as Fig. 9 shown.

[0039] In the embodiment, the elastic reset member 4 is a spring sleeved on the limiting member 3 and is sandwiched between the limiting member 3 and the first base 1 .

[0040] The unfolding process of the fourth embodiment is as follows: first, the limiting member 3 is pushed out of the path range of the second base 2, and then the second base 2 is gradually unfolded around the first rotation axis 5. When the second base 2 is pressed against the first base 1, the limiting member 3 is reset to press against the protrusion 7, completing the unfolding and locking of the second base 2.

[0041] Embodiment 4 The folding and storage process: Remove the limiting member 3 to complete the folding and storage of the second base 2.

[0042] In the first to fourth embodiments, the elastic reset member 4 can be made of elastic rubber, a spring, a torsion spring, etc., as long as it can push the limiting member 3 against the second limiting portion 72.

[0043] The best embodiment of the present invention has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of the present invention.

[0044] The best embodiment of the present invention has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of the present invention.

Claims

1. An umbrella rib joint structure, comprising a first base (1) and a second base (2) respectively arranged on two umbrella ribs, wherein the first base (1) and the second base (2) are rotatably connected via a first rotating shaft (5), and wherein: The second base (2) is provided with a first limiting portion (71) and a second limiting portion (72), the first limiting portion (71) faces the direction of the arc-shaped expansion of the second base (2), and the second limiting portion (72) faces the direction of the arc-shaped folding of the second base (2), the first base (1) is provided with a limiting member (3) which is removably blocked on the second limiting portion (72); the first base (1) is provided with a third limiting portion (73) which is pressed against the first limiting portion (71), so that the umbrella ribs are locked in the expanded state.

2. The umbrella rib joint structure according to claim 1, characterized in that: The first base (1) is also provided with an elastic reset member (4) capable of pressing the limit member (3) against the limit portion.

3. The umbrella rib joint structure according to claim 2, characterized in that: A second rotating shaft (6) is provided between the first base (1) and the limiting member (3), the second rotating shaft (6) is perpendicular to the first rotating shaft (5), and the second limiting portion (72) is located on the folded side of the second base (2).

4. The umbrella rib joint structure according to claim 2, characterized in that: The second limiting portion (72) is located on the unfolded side of the second base (2).

5. The umbrella rib joint structure according to claim 4, characterized in that: A second rotating shaft (6) is provided between the first base (1) and the limiting member (3), and the second rotating shaft (6) is parallel to the first rotating shaft (5).

6. The umbrella rib joint structure according to claim 5, characterized in that: The second base (2) is provided with a protrusion (7), and the first limiting portion (71) and the second limiting portion (72) are respectively located on the protrusion (7).

7. The umbrella rib joint structure according to claim 5, characterized in that: The second limiting portion (72) is a recessed pit arranged on the second base (2); after the ribs are fully unfolded, the limiting member (3) is pressed against the second limiting portion (72); and the limiting member (3) is provided with an arc surface matching the second limiting portion (72).

8. An umbrella rib joint structure according to any one of claims 4 to 7, characterized in that: The limiting member (3) comprises a pressing end (31) protruding from the first base (1), which is used to drive the limiting member (3) to separate from the limiting portion by utilizing the principle of a lever after being pressed.

9. The umbrella rib joint structure according to claim 2, characterized in that: The first base (1) is provided with a sliding hole (11) for the limiting member (3) to slide, and the second limiting portion (72) is located on the folded side of the second base (2).

10. The umbrella rib joint structure according to claim 9, characterized in that: The elastic reset member (4) is a spring sleeved on the limiting member (3) and is sandwiched between the limiting member (3) and the first base (1).

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