A handle shell of a banana umbrella

Abstract

The utility model provides a kind of shake hand shell of banana umbrella, belong to sunshade hanging umbrella technical field.It solves the technical problem of inconvenient maintenance operation of the existing banana umbrella's shake hand shell wire wheel.This banana umbrella's shake hand shell includes half shell one and half shell two, which are both bowl-shaped, the middle part of half shell one has a through hole for the shake hand to pass through, half shell one and half shell two are buckled along the setting direction of the through hole, the shake hand shell further includes a cylindrical plug-in pipe, the end of the plug-in pipe is integrally connected to the rim of half shell one, and the plug-in pipe is in communication with the inner cavity of half shell one, the rim of half shell two has a gap for positioning, and the plug-in pipe is partially positioned and embedded in the gap.This banana umbrella's shake hand shell wire wheel maintenance is more labor-saving and convenient.

Description

Technical Field

[0001] This utility model belongs to the field of sunshade umbrella technology, and relates to a crank cover for a banana umbrella. Background Technology

[0002] Sun umbrellas have been widely used as a travel product, and banana umbrellas, as one of these products, are also very popular among users. Banana umbrellas are generally opened and closed by turning a wrench to drive the umbrella ropes set inside the iron pipe and tightening and loosening the umbrella ropes.

[0003] For example, patent application number CN200920118259.0 discloses a banana umbrella for sunshade, including a base, a support rod, a curved tube, and an umbrella frame. The umbrella frame is connected to one end of the curved tube via a bend assembly. The other end of the curved tube is connected to a rocking wheel assembly and connected to the support rod via a connecting rod and a sliding seat assembly. The rocking wheel assembly is connected to the umbrella canopy bracket via a control rope built into the body of the curved tube. A steering support mechanism is fixed at the upper end of the support rod, and the curved tube passes through the steering support mechanism and is movably fixed by the support mechanism.

[0004] However, the banana umbrella still has shortcomings: its rocking wheel assembly is composed of two half-shells that are fastened together. When maintaining the thread wheel, the two half-shells need to be disassembled to expose the thread wheel. However, since one end of the slanted bend tube is connected to the rocking wheel assembly, disassembling it for maintenance will inevitably cause the end of the slanted bend tube to lose its restraint. After maintenance, there are many parts that need to be reassembled, making maintenance inconvenient. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in existing technologies by providing a crank case for a banana umbrella. The technical problem this utility model aims to solve is that the existing crank cases for banana umbrellas make it inconvenient to operate the maintenance reel.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A crank case for a banana umbrella includes a bowl-shaped half-shell and a second half-shell. The first half-shell has a through hole in the middle for the crank to pass through. The first and second half-shells are interlocked along the direction of the through hole. The crank case also includes a cylindrical insertion tube. The insertion tube is characterized in that its end is integrally connected to the edge of the first half-shell and communicates with the inner cavity of the first half-shell. The second half-shell has a clearance notch at its edge, and the insertion tube is partially positioned and embedded in the clearance notch.

[0008] The space between half-shell one and half-shell two allows for the placement and positioning of the spool, enabling smooth rotation for take-up and take-out of the spool. A through-hole allows the end of the crank handle to pass through and connect to the spool, enabling control of the spool. A connecting tube allows the curved tube at the top of the banana umbrella to be inserted for positioning and assembly, ensuring the spool can stably pass through the curved tube. By integrating the entire cylindrical connecting tube at the edge of half-shell one, and providing a notch at the edge of half-shell two to fit the outer circumference of the connecting tube, the system ensures a secure and closed fit between half-shell one and half-shell two. For spool maintenance, users only need to disassemble half-shell two to expose the spool. Since the crank handle is located on one side of half-shell one, it does not need to be disassembled. Simultaneously, the curved tube at the top of the banana umbrella remains inserted into the connecting tube, without damaging or restoring the connection structure. After maintenance, only half-shell two needs to be re-fastened, making maintenance more effortless and convenient.

[0009] In the aforementioned banana umbrella handle housing, a U-shaped bracket is provided between the first and second half-shells. The bracket has a shaft hole coaxially arranged with the through hole in its center. Both ends of the bracket are inserted into the first half-shell and positioned circumferentially with it along the through hole. The two ends of the spool need to be supported and positioned to achieve rotation. This creates a positioning space between the bracket and the first half-shell for accommodating the spool, facilitating the rotational connection of one end of the spool to the bracket. This avoids the need for a shaft hole in the second half-shell, which would reduce the sealing effect. Furthermore, during positioning and assembly after spool maintenance, the bracket's pre-positioning allows operators to observe the spool assembly and connection through its semi-open structure, making maintenance convenient.

[0010] In the aforementioned banana umbrella handle housing, the inner side of the rim of half-shell one has a circumferentially arranged positioning arc groove, and the inner side of the rim of half-shell two has an arc-shaped protrusion, which is positioned and embedded in the positioning arc groove. This allows half-shell one and half-shell two to form a nested fit around the rim, improving the fastening stability and sealing effect.

[0011] In the aforementioned banana umbrella handle housing, the outer periphery of the insertion tube has an arc-shaped positioning groove, and the clearance notch is positioned within the positioning groove. This facilitates better positioning of the second half-shell and the outer periphery of the insertion tube along the axial direction of the insertion tube, ensuring the stability and sealing effect of the overall structure.

[0012] In the aforementioned banana umbrella handle housing, the inner wall of the insertion tube has an annular shoulder, and a coaxially arranged cylindrical positioning ring is located on the shoulder. The outer end of the positioning ring faces away from the second half-shell. This facilitates a more stable and reliable positioning of the bent tube at the top of the banana umbrella after it is inserted into the insertion tube, with the wall thickness of the bent tube embedded between the inner wall of the insertion tube and the positioning ring, thus making the structure more robust.

[0013] In the crank case of the banana umbrella described above, the inner wall of the outer end of the positioning protrusion ring is flared. This facilitates the contact between the flared conical surface of the inner wall of the positioning protrusion ring and the rope released from the reel when it is pulled after passing through the positioning protrusion ring and entering the bend, reducing the scratching and wear on the rope and thus reducing the maintenance frequency.

[0014] Compared with the prior art, the advantages of this utility model are as follows:

[0015] The crank housing of this banana umbrella allows users to expose the reel for maintenance simply by removing half-shell two. Since the crank is located on one side of half-shell one, there is no need to remove the crank. At the same time, the curved tube at the top of the banana umbrella can remain inserted into the insertion tube during maintenance without having to be removed, making maintenance more effortless and convenient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0017] Figure 2 This is a schematic diagram of the three-dimensional exploded structure of this embodiment.

[0018] Figure 3 This is a three-dimensional exploded structure diagram from another perspective of this embodiment.

[0019] Figure 4 This is a side view structural diagram of this embodiment.

[0020] Figure 5 yes Figure 4 A schematic diagram of the AA cross section.

[0021] Figure 6 yes Figure 5 Enlarged view of part B in the image.

[0022] In the figure, 1. Half shell one; 11. Through hole; 12. Positioning arc groove; 2. Half shell two; 21. Relief notch; 22. Protrusion strip; 3. Insert pipe; 31. Positioning groove; 32. Protruding shoulder; 33. Positioning protruding ring; 4. Bracket; 41. Shaft hole. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figure 1As shown, the crank case of this banana umbrella includes a bowl-shaped half-shell 1 and a second half-shell 2. Half-shell 1 and the second half-shell 2 are injection molded parts. Half-shell 1 has a through hole 11 in the middle for the crank to pass through. Half-shell 1 and the second half-shell 2 are interlocked along the direction of the through hole 11 and fixed together by four screws (not shown) arranged along the direction of the through hole 11. The crank case also includes a cylindrical insertion tube 3. The end of the insertion tube 3 is integrally connected to the edge of half-shell 1 and communicates with the inner cavity of half-shell 1. The space between half-shell 1 and the second half-shell 2 can accommodate and position the spool, so that the spool can rotate smoothly to take in and deliver the spool. The through hole 11 allows the end of the crank to pass through and connect to the spool to achieve control of the spool. The insertion tube 3 allows the curved tube at the top of the banana umbrella to be inserted for positioning and assembly, so that the spool can stably pass through the curved tube.

[0025] like Figure 2 , Figure 3 As shown, the edge of the second half-shell 2 has a semi-circular clearance notch 21, and the insertion tube 3 is partially positioned and embedded in the clearance notch 21. A U-shaped bracket 4 is provided between the first half-shell 1 and the second half-shell 2. The middle of the bracket 4 has a shaft hole 41 arranged coaxially with the through hole 11. Both ends of the bracket 4 are inserted into the first half-shell 1. Specifically, the inner wall of the first half-shell 1 has staggered reinforcing ribs, and the two ends of the bracket 4 are confined between the reinforcing ribs to restrict its movement space, so that the bracket 4 is positioned with the first half-shell 1 along the circumference of the through hole 11. The inner side of the edge of the first half-shell 1 has a circumferentially arranged positioning arc groove 12, the inner side of the edge of the second half-shell 2 has an arc-shaped protrusion 22, and the outer periphery of the insertion tube 3 has an arc-shaped positioning groove 31.

[0026] like Figure 4 , Figure 5 , Figure 6 As shown, the protrusion 22 is positioned and embedded in the positioning arc groove 12, and the edge of the clearance notch 21 is positioned and inserted into the positioning groove 31. The inner wall of the insertion tube 3 has an annular shoulder 32, and the shoulder 32 has a positioning protrusion 33 arranged coaxially in a cylindrical shape and facing away from the side of the second half shell 2. The inner wall of the outer end of the positioning protrusion 33 is flared.

[0027] When maintaining the reel, users only need to loosen the screws on half shell 2 to remove half shell 2, thereby exposing the reel between half shell 1 and bracket 4. Then, bracket 4 can be removed for maintenance. There is no need to disassemble the crank handle, and the insertion tube 3 maintains its structure without change, so that the curved tube at the top of the banana umbrella can remain in the insertion state during maintenance without disassembly, making maintenance more labor-saving and convenient.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A crank case for a banana umbrella, comprising a bowl-shaped first half-case (1) and a second half-case (2), wherein the first half-case (1) has a through hole (11) for the crank to pass through in the middle, the first half-case (1) and the second half-case (2) are fastened together along the direction of the through hole (11), and the crank case further comprises a cylindrical insertion tube (3), characterized in that, The end of the insertion tube (3) is integrally connected to the edge of the first half shell (1), and the insertion tube (3) communicates with the inner cavity of the first half shell (1). The edge of the second half shell (2) has a clearance notch (21), and the insertion tube (3) is partially positioned and embedded in the clearance notch (21).

2. The crank case of the banana umbrella according to claim 1, characterized in that, A U-shaped bracket (4) is provided between the first half shell (1) and the second half shell (2). The bracket (4) has a shaft hole (41) arranged coaxially with the through hole (11) in the middle. Both ends of the bracket (4) are inserted into the first half shell (1) and are positioned with the first half shell (1) along the circumference of the through hole (11).

3. The crank case of the banana umbrella according to claim 1 or 2, characterized in that, The first half-shell (1) has a circumferentially arranged positioning arc groove (12) on the inner side of its opening, and the second half-shell (2) has an arc-shaped protrusion (22) on the inner side of its opening, and the protrusion (22) is positioned and embedded in the positioning arc groove (12).

4. The crank case of the banana umbrella according to claim 1 or 2, characterized in that, The outer periphery of the insertion tube (3) has an arc-shaped positioning groove (31), and the edge of the clearance notch (21) is positioned and inserted into the positioning groove (31).

5. The crank case of the banana umbrella according to claim 1 or 2, characterized in that, The inner wall of the insertion tube (3) has an annular shoulder (32), and the shoulder (32) has a coaxially arranged cylindrical positioning ring (33), the outer end of which is positioned away from the second half shell (2).

6. The crank case of the banana umbrella according to claim 5, characterized in that, The inner wall of the outer end of the positioning protrusion (33) is flared.

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