Rocking handle connecting structure and foldable umbrella

Abstract

The rocking handle connecting structure comprises an umbrella handle, the umbrella handle is provided with a hollow umbrella handle cavity, and a receding hole communicated with the umbrella handle cavity is formed in the single side of the umbrella handle in the left-right direction; the fixing seat is arranged in a hollow mode, the fixing seat is arranged outside the umbrella handle in a sleeving mode, and a fixing seat hole penetrating through the umbrella handle cavity and the receding hole is formed in the single side, in the left-right direction, of the fixing seat; at least part of the rocking handle structure penetrates through the fixing seat hole and the receding hole and is located in the umbrella handle cavity, the rocking handle structure is arranged around the axis of the rocking handle in a rotating mode relative to the umbrella handle, and at least one end of the rocking handle structure in the left-right direction is not exposed out of the umbrella handle.

Description

Technical Field

[0001] The utility model relates to the technical field of umbrellas, in particular to a crank connection structure and a foldable umbrella. Background Art

[0002] Some foldable umbrellas are often larger in size to provide better sun and rain protection. However, due to the larger frame or higher handle, these foldable umbrellas are time-consuming and laborious to open and close, which is particularly difficult for users of short height. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a crank connection structure with a novel structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A crank connection structure, comprising:

[0006] An umbrella handle, wherein the umbrella handle has a hollow umbrella handle cavity, and a clearance hole is opened on one side of the umbrella handle in the left and right directions and is connected to the umbrella handle cavity;

[0007] A fixing seat, wherein the fixing seat is hollow and is sleeved outside the umbrella handle. A fixing seat hole penetrating the umbrella handle cavity and the clearance hole is opened on one side of the fixing seat in the left and right directions;

[0008] A crank structure, at least a portion of which passes through the fixing seat hole and the clearance hole and is located in the umbrella handle cavity, the crank structure is rotatable relative to the umbrella handle around the crank axis, and at least one end of the crank structure in the left and right directions is not exposed outside the umbrella handle.

[0009] In one embodiment, the crank structure includes a crank body, a rotating shaft and a connecting member, the rotating shaft extends in the left and right directions and has a first end and a second end respectively arranged at the left and right ends, the first end is clamped on the outer wall of the umbrella handle and the outer wall of the fixed seat, the second end is connected to the crank body, and at least part of the connecting member is arranged on the crank body and the rotating shaft.

[0010] In one embodiment, the crank structure includes a bearing seat and a bearing seat connector, the bearing seat is sleeved on the rotating shaft, and the bearing seat connector is passed through the outer wall of the umbrella handle, the outer wall of the fixing seat and the bearing seat to fix the three together.

[0011] In one embodiment, the crank connection structure further includes two bearings, which are sleeved on the rotating shaft and disposed on both sides of the bearing seat.

[0012] In one embodiment, the bearing seat is located outside the umbrella handle cavity and between the crank body and the clearance hole.

[0013] In one embodiment, the fixing seat includes a fixing seat body extending in the up-down direction and a protrusion protruding from the fixing seat body to one side in the left-right direction, and the fixing seat hole is formed on the protrusion.

[0014] In one embodiment, the crank structure includes a friction assembly, which includes a ratchet, a pawl and a pawl elastic member. The pawl is rotatably connected to the fixed seat or the umbrella handle. The ratchet is sleeved on the rotating shaft. The pawl is abutted against the ratchet. The pawl elastic member is used to provide the elastic force required to keep the pawl always abutted against the ratchet.

[0015] In one embodiment, the friction assembly further includes a friction member, and the friction member is in frictional contact with the ratchet.

[0016] In one embodiment, the crank connection structure further includes an elastic member and a fixed sleeve, the fixed sleeve and the elastic member are both passed through the rotating shaft, the elastic member is abutted against the fixed sleeve, and the elastic member is used to make the friction member close to the ratchet.

[0017] In one embodiment, the crank connection structure further includes a first limit pin, which is inserted into the rotating shaft. The first limit pin is arranged adjacent to the fixing sleeve, so that the elastic member is always pressed against the fixing sleeve.

[0018] In one embodiment, the crank connection structure further includes a second limiting pin, which is inserted into the rotating shaft and is disposed adjacent to the crank body.

[0019] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a foldable umbrella with a novel structure.

[0020] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0021] A foldable umbrella comprises: the crank handle connection structure as described above, a linkage rope, and an umbrella frame that can be opened and folded relative to the umbrella handle, one end of the linkage rope is arranged in the umbrella handle cavity and fixedly connected to the rotating shaft, and the other end of the linkage rope is connected to the umbrella frame.

[0022] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0023] The crank connection structure of the present invention includes an umbrella handle, a fixing seat and a crank structure. The fixing seat is arranged outside the umbrella handle, and a through hole is only opened on one side of the fixing seat and the umbrella handle in the left and right directions for the crank structure to pass through, so that at least one end of the crank structure in the left and right directions is not exposed outside the umbrella handle, making the appearance of the entire crank connection structure simple, reducing the possibility of scratching the user, and improving safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a foldable umbrella in an open state according to an embodiment of the present invention;

[0025] Figure 2 This is a front view of a foldable umbrella in an embodiment of the present invention in a folded state;

[0026] Figure 3 This is a schematic diagram of a foldable umbrella in one embodiment of the present invention when it is transformed from a folded state to an open state;

[0027] Figure 4 This is a schematic diagram of a foldable umbrella in one embodiment of the present invention when it is converted from an open state to a folded state;

[0028] Figure 5 This is an exploded view of the umbrella handle and crank structure in one embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional view of the umbrella handle and crank structure in one embodiment of the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of part A;

[0031] The attached figures are as follows:

[0032] 1-umbrella handle; 11-umbrella handle cavity; 12-yield hole; 2-fixing seat; 21-fixing seat body; 22-protrusion; 23-fixing seat hole; 31-crank handle body; 32-rotating shaft; 321-first end; 322-second end; 33-connecting piece; 34-bearing seat; 35-bearing seat connecting piece; 36-bearing; 41-ratchet; 42-pawl; 43-pawl elastic piece; 44-friction piece; 51-elastic piece; 52-fixing sleeve; 53-first limit pin; 54-second limit pin; 61-linking rope; 62-umbrella rod; 63-support rod; 64-movable seat. DETAILED DESCRIPTION

[0033] The following describes in detail preferred embodiments of the present invention in conjunction with the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0034] See also Figure 1-7 As shown, the crank connection structure of the present invention includes an umbrella handle 1, a fixing base 2, and a crank structure, specifically:

[0035] The umbrella handle 1 extends in the vertical direction, and the outer wall of the umbrella handle 1 is surrounded by a hollow umbrella handle cavity 11. In one embodiment, the umbrella handle 1 is cylindrical, and a clearance hole 12 that penetrates the umbrella handle cavity 11 is opened on one side of the umbrella handle 1 in the left and right directions. In one embodiment, the clearance hole 12 is opened on the right side of the umbrella handle 1.

[0036] The mounting base 2 includes a mounting base body 21 extending vertically and a protrusion 22 that protrudes from the mounting base body 21 in a single, left-right direction. The mounting base 2 is hollow and fits over the umbrella handle 1. A mounting base hole 23 is defined on one side of the mounting base 2 in the left-right direction. Specifically, the mounting base hole 23 is defined in the protrusion 22 and extends through the umbrella handle cavity 11 and the clearance hole 12. In one embodiment, the protrusion 22 extends rightward from the mounting base body 21, and the mounting base hole 23 is defined on the right side of the protrusion 22.

[0037] At least part of the crank structure passes through the fixing seat hole 23 and the clearance hole 12 and is located in the umbrella handle cavity 11. The crank structure is rotatable relative to the umbrella handle around the crank axis. The crank axis extends in the left and right directions, and at least one end of the crank structure in the left and right directions is not exposed outside the umbrella handle 1. Specifically, the crank structure includes a crank body 31, a rotating shaft 32, and a connecting member 33. The crank body 31 extends vertically as a whole. Its upper end extends from right to left and is inserted into the protrusion 22 through a hole in the fixing base 23. Its lower end extends from left to right to form a grip. The rotating shaft 32 extends horizontally and has a first end 321 and a second end 322, respectively, disposed on the left and right ends. The first end 321 is secured to the outer wall of the umbrella handle 1 and the outer wall of the fixing base 2, while the second end 322 is connected to the upper end of the crank body 31. At least a portion of the connecting member 33 is disposed on the crank body 31 and the rotating shaft 32. In one embodiment, the connecting member 33 is a screw that screws the second end 322 and the crank body 31 together. To prevent the rotating shaft 32 from dislodging from the crank body 31, a second stopper 54 may be inserted into the rotating shaft 32. The second stopper 54 is disposed adjacent to the crank body 31 and located on the left side of the crank body 31.

[0038] The crank structure also includes a bearing seat 34, a bearing seat connector 35 and two bearings 36. The bearing seat 34 is sleeved on the rotating shaft 32 and is located outside the umbrella handle cavity 11. Specifically, the bearing seat 34 is located in the protrusion 22 and is between the crank body 31 and the makeshift hole 12. The bearing seat connector 35 is provided with two upper and lower parts, specifically screws. Each bearing seat connector 35 is passed through the outer wall of the umbrella handle 1, the outer wall of the fixed seat 2 and the bearing seat 34 for fixing the three together. The two bearings 36 are sleeved on the rotating shaft 32 and are respectively arranged on both sides of the bearing seat 34, and the bearing 36 on the right is arranged adjacent to the second limit pin 54.

[0039] The crank handle structure also includes a friction assembly, comprising a ratchet 41, a pawl 42, a pawl elastic member 43, and a friction member 44. The pawl 42 is rotatably connected to the fixed base 2 or the umbrella handle 1 and is rotatably disposed relative to the fixed base 2 about an axis extending in the left-right direction. The ratchet 41 is sleeved on the rotating shaft 32, and the pawl 42 abuts against the ratchet 41. The pawl elastic member 43 is used to provide the elastic force required to maintain the pawl 42 against the ratchet 41. Two friction members 44 are provided, one on each side of the ratchet 41 and in frictional contact with the ratchet 41. In one embodiment, to ensure that the friction member 44 always rotates synchronously with the rotating shaft 32, the cross-section of the portion of the rotating shaft 32 that mates with the friction member 44 is configured to be non-circular, with its upper and lower edges being horizontally disposed. The cross-sectional shape of the central opening of the friction member 44 is the same as that of the rotating shaft 32.

[0040] The crank structure also includes an elastic member 51, a fixed sleeve 52 and a first limit pin 53. The fixed sleeve 52 and the elastic member 51 are both inserted into the rotating shaft 32. The first limit pin 53 is inserted into the rotating shaft 32. The first limit pin 53, the fixed sleeve 53 and the elastic member 51 are arranged adjacent to each other from left to right, so that the left end of the elastic member 51 is pressed against the fixed sleeve 52, and the right end of the elastic member 51 is pressed against the friction member 44, so that the friction member 44 is tightly against the ratchet 42.

[0041] like Figure 1-4 As shown, the crank connection structure of the present invention can be used for a foldable umbrella, which also includes a linkage rope 61 and an umbrella frame that can be opened and folded relative to the umbrella handle. One end of the linkage rope 41 is arranged in the umbrella handle cavity 11 and is fixedly connected to the rotating shaft 32. The other end of the linkage rope 41 is connected to the umbrella frame. The umbrella frame includes an umbrella rod 62, a support rod 63 and a movable seat 64 slidably arranged on the umbrella handle 1, the upper end of the umbrella rod 62 is rotatably connected to the upper end of the umbrella handle 1, one end of the support rod 63 is rotatably connected to the umbrella rod 62, and the other end of the support rod 63 is rotatably connected to the movable seat 64.

[0042] How it works:

[0043] The foldable umbrella has an open state and a folded state, such as Figure 2-3 As shown, when switching from the folded state to the open state, the crank body 31 is rotated clockwise, which drives the rotating shaft 32, the connecting member 33, the two friction members 44, the first limit pin 53, and the second limit pin 54 to rotate around the crank axis. Since the pawl 42 can only prevent the ratchet 41 from rotating counterclockwise, the ratchet 41 also rotates clockwise around the crank axis. As the rotating shaft 32 rotates, the linkage rope 61 gradually increases its length around the rotating shaft 32, shortening the linkage rope 61. As the linkage rope 61 shortens, the movable seat 64 slides upward relative to the umbrella handle 1 under the pull of the linkage rope 61, and the umbrella rod 62 gradually moves away from the umbrella handle 2. Figure 4 As shown, when switching from the open state to the folded state, the crank body 31 is rotated counterclockwise, so that the crank body 31 drives the rotating shaft 32, the connecting member 33, the two friction members 44, the first limit pin 53, and the second limit pin 54 to rotate around the crank axis. The ratchet 41 cannot rotate counterclockwise around the crank axis due to the setting of the pawl 42. At this time, the user needs to overcome the friction resistance generated between the friction member 44 and the ratchet 41 to switch the foldable umbrella to the folded state. The linkage rope is gradually reduced from the rotating shaft 32 due to the rotation of the rotating shaft 32, the linkage rope 61 is stretched, and the movable seat 64 slides downward relative to the umbrella handle 1 under the action of gravity due to the stretching of the linkage rope 61, and the umbrella surface rod 62 gradually approaches the umbrella handle 1.

[0044] In the description of the present invention, the directions involved such as "front", "back", "left", "right", "up", and "down" are defined with reference to the directions observed by the user when using the foldable umbrella, that is, Figure 1 As shown, the left direction in the figure is "left", the right direction in the figure is "right", the upper direction in the figure is "up", the lower direction in the figure is "down", and the directions perpendicular to the viewing angle in the figure are "front" and "back". The definitions of the above directions are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A crank connection structure, characterized in that: include: An umbrella handle, wherein the umbrella handle has a hollow umbrella handle cavity, and a clearance hole is opened on one side of the umbrella handle in the left and right directions and is connected to the umbrella handle cavity; A fixing seat, wherein the fixing seat is hollow and is sleeved outside the umbrella handle. A fixing seat hole penetrating the umbrella handle cavity and the clearance hole is opened on one side of the fixing seat in the left and right directions; A crank structure, at least a portion of which passes through the fixing seat hole and the clearance hole and is located in the umbrella handle cavity, the crank structure is rotatable relative to the umbrella handle around the crank axis, and at least one end of the crank structure in the left and right directions is not exposed outside the umbrella handle.

2. The crank connection structure according to claim 1, characterized in that: The crank structure includes a crank body, a rotating shaft and a connecting piece. The rotating shaft extends in the left and right directions and has a first end and a second end respectively arranged at the left and right ends. The first end is clamped on the outer wall of the umbrella handle and the outer wall of the fixing seat, and the second end is connected to the crank body. At least part of the connecting piece is arranged on the crank body and the rotating shaft.

3. The crank connection structure according to claim 2, characterized in that: The crank structure includes a bearing seat and a bearing seat connector. The bearing seat is sleeved on the rotating shaft. The bearing seat connector is passed through the outer wall of the umbrella handle, the outer wall of the fixing seat and the bearing seat to fix the three together.

4. The crank connection structure according to claim 3, characterized in that: The crank connection structure further includes two bearings, which are sleeved on the rotating shaft and are respectively arranged on both sides of the bearing seat.

5. The crank connection structure according to claim 3, characterized in that: The bearing seat is located outside the umbrella handle cavity and between the crank body and the clearance hole.

6. The crank connection structure according to claim 1, characterized in that: The fixing seat includes a fixing seat body extending in the up-down direction and a protrusion protruding from the fixing seat body to one side in the left-right direction, and the fixing seat hole is formed on the protrusion.

7. The crank connection structure according to claim 2, characterized in that: The crank structure includes a friction assembly, which includes a ratchet, a pawl and a pawl elastic member. The pawl is rotatably connected to the fixed seat or the umbrella handle. The ratchet is sleeved on the rotating shaft. The pawl is abutted against the ratchet. The pawl elastic member is used to provide the elastic force required to keep the pawl always abutted against the ratchet.

8. The crank connection structure according to claim 7, characterized in that: The friction assembly further includes a friction member in frictional contact with the ratchet.

9. The crank connection structure according to claim 8, characterized in that: The crank connection structure further includes an elastic member and a fixed sleeve. The fixed sleeve and the elastic member are both passed through the rotating shaft. The elastic member is abutted against the fixed sleeve. The elastic member is used to make the friction member close to the ratchet.

10. The crank connection structure according to claim 9, characterized in that: The crank connection structure further includes a first limit pin, which is inserted into the rotating shaft. The first limit pin is arranged adjacent to the fixing sleeve, so that the elastic member is always pressed against the fixing sleeve.

11. The crank connection structure according to claim 2, characterized in that: The crank connection structure further includes a second limiting pin, which is inserted into the rotating shaft and is arranged adjacent to the crank body.

12. A foldable umbrella, characterized in that: include: The crank connection structure, linkage rope and umbrella stand that can be opened and folded relative to the umbrella handle as described in any one of claims 1 to 11, one end of the linkage rope is arranged in the umbrella handle cavity and fixedly connected to the rotating shaft, and the other end of the linkage rope is connected to the umbrella stand.

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