Rocking handle connecting structure and foldable umbrella

Abstract

The utility model discloses a rocking handle connecting structure, which comprises an umbrella handle, an umbrella handle connecting piece, an umbrella handle connecting piece, an umbrella handle connecting piece, an umbrella handle connecting piece, an umbrella handle connecting piece, an umbrella handle connecting piece, an umbrella handle connecting piece and an umbrella handle connecting piece, and is characterized in that the umbrella handle is provided with a hollow umbrella handle cavity; at least part of the rocking handle structure penetrates through the receding hole, the rocking handle structure rotates around the axis of the rocking handle relative to the umbrella handle, at least one end of the rocking handle structure in the left-right direction is arranged in the umbrella handle cavity, and the utility model further relates to a foldable umbrella.

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 for better sun and rain protection. However, due to the large umbrella frame or high umbrella handle, it is time-consuming and laborious to open and close the umbrella, especially for users with 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 foldable umbrella with a novel structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model 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 communicating with the umbrella handle cavity is opened on one side of the umbrella handle in the left-right direction;

[0007] A crank structure, at least part of which passes through the clearance hole, the crank structure is rotatably arranged 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 arranged in the umbrella handle cavity.

[0008] In one embodiment, the crank connection structure also includes a connecting seat, which is fixedly arranged in the umbrella handle cavity. The crank structure includes a crank body that is at least partially arranged outside the umbrella handle cavity and a crank connection part that is at least partially arranged in the umbrella handle cavity. The crank connection part is fixedly connected to the crank body, at least part of the crank structure passes through the connecting seat, the crank structure is rotatably connected to the connecting seat around the crank axis, and a limit piece is provided on the outer wall of the crank connection part. The limit piece is arranged in the umbrella handle cavity and cooperates with the connecting seat, and the limit piece is used to limit the crank structure from escaping from the give way hole.

[0009] In one embodiment, the crank connection portion includes a crank fixing shaft and a crank connecting piece, the crank fixing shaft is provided with the limit piece, the limit piece is cooperated with the connecting seat, and the crank connecting piece is arranged between the crank fixing shaft and the crank body for fixedly connecting the crank fixing shaft and the crank body.

[0010] In one embodiment, the connecting seat and the inner wall of the umbrella handle are arranged to form a rotation space, the crank fixing shaft includes a crank fixing shaft body and a crank fixing shaft cap body fixedly arranged at one end of the crank fixing shaft body, the crank fixing shaft cap body is the limiting member, the crank fixing shaft cap body is arranged in the rotation space, and the crank fixing shaft body passes through the connecting seat.

[0011] In one embodiment, a connecting groove is provided at the other end of the crank fixing shaft body, and the crank connecting member is fixedly connected to the crank fixing shaft through the connecting groove.

[0012] In order to solve the above technical problems, another technical solution adopted by the utility model is:

[0013] A foldable umbrella, comprising:

[0014] An umbrella handle, wherein the umbrella handle has a hollow umbrella handle cavity, and a clearance hole communicating with the umbrella handle cavity is opened on one side of the umbrella handle in the left-right direction;

[0015] An umbrella frame, which can be opened and closed relative to the umbrella handle;

[0016] A crank structure, at least a portion of which passes through the clearance hole, the crank structure is rotatably arranged relative to the umbrella handle around the crank axis, and at least one end of the crank structure in the left and right direction is arranged in the umbrella handle cavity;

[0017] The foldable umbrella has an open state and a folded state. When in the open state, the umbrella frame is opened relative to the umbrella handle, and when in the folded state, the umbrella frame is folded relative to the umbrella handle. When the crank structure rotates relative to the umbrella handle around the axis of the crank, the foldable umbrella switches between the open state and the folded state.

[0018] In one embodiment, the foldable umbrella also includes a connecting seat, which is fixedly arranged in the umbrella handle cavity, and the crank structure includes a crank body that is at least partially arranged outside the umbrella handle cavity and a crank connecting part that is at least partially arranged in the umbrella handle cavity, the crank connecting part is fixedly connected to the crank body, at least part of the crank structure passes through the connecting seat, the crank structure is rotatably connected to the connecting seat around the crank axis, and the outer wall of the crank connecting part is provided with a limit member, which is arranged in the umbrella handle cavity and cooperates with the connecting seat, and the limit member is used to limit the crank structure from escaping from the clearance hole.

[0019] In one embodiment, the crank connecting portion includes a crank fixed shaft and a crank connecting member. The crank fixed shaft is provided with the limiting member, and the limiting member is in abutting cooperation with the connecting seat. The crank connecting member is disposed between the crank fixed shaft and the crank body and is used for fixedly connecting the crank fixed shaft and the crank body.

[0020] In one embodiment, the collapsible umbrella further includes a friction assembly, and the friction assembly is used to provide a one-way frictional force when the collapsible umbrella is converted from the opened state to the collapsed state.

[0021] In one embodiment, the friction assembly includes a ratchet wheel, a pawl and a pawl elastic member. The pawl is rotatably connected to the connecting seat. The ratchet wheel is sleeved on the crank fixed shaft, and the pawl abuts against the ratchet wheel. The pawl elastic member is used to provide the elastic force required to keep the pawl always abutting against the ratchet wheel. When converting from the opened state to the collapsed state, the crank fixed shaft, the crank body and the crank connecting member rotate around the crank axis, and the pawl prevents the ratchet wheel from rotating around the crank axis. When converting from the collapsed state to the opened state, the crank fixed shaft, the crank body, the crank connecting member and the ratchet wheel rotate around the crank axis.

[0022] In one embodiment, the friction assembly further includes a first friction member, and the first friction member is in frictional contact with the ratchet wheel. The first friction member is used to increase the frictional resistance when the crank connecting portion rotates relative to the ratchet wheel around the crank axis. When converting between the opened state and the collapsed state, the first friction member rotates around the crank axis. The collapsible umbrella further includes an elastic member, and the elastic member is disposed between the crank body and the first friction member, and the elastic member is used to make the first friction member closely adhere to the ratchet wheel.

[0023] In one embodiment, the collapsible umbrella further includes a second friction member, and the second friction member is in frictional contact with the crank fixed shaft. The second friction member is used to reduce the frictional resistance when the crank connecting portion rotates relative to the connecting seat around the crank axis.

[0024] In one embodiment, both the first friction member and the second friction member are sleeved on the crank fixed shaft, and the first friction member cannot rotate relative to the crank fixed shaft around the crank axis.

[0025] In one embodiment, there are two first friction members and also two second friction members. The two first friction members are respectively disposed on the left and right sides of the ratchet wheel, and the two second friction members are respectively disposed on the left and right sides of the connecting seat.

[0026] In one embodiment, the connecting seat has a hollow connecting seat cavity, the upper part of the connecting seat cavity is not closed, at least part of the crank fixing shaft is arranged in the connecting seat cavity, and the foldable umbrella also includes a linkage rope, one end of the linkage rope is arranged in the connecting seat cavity and connected to the crank fixing shaft, and the other end of the linkage rope is connected to the umbrella frame.

[0027] In one embodiment, a linkage rope groove is provided on the umbrella handle, a portion of the linkage rope is arranged in the umbrella handle cavity, and another portion of the linkage rope passes through the linkage rope groove and is arranged outside the umbrella handle cavity.

[0028] In one embodiment, the foldable umbrella further comprises a matching seat, the matching seat is arranged between the crank body and the umbrella handle, at least a part of the matching seat is clamped in the clearance hole, and the matching seat is fixedly connected to the umbrella handle.

[0029] In one embodiment, the foldable umbrella further comprises a mating friction member, wherein the mating friction member is disposed between the mating seat and the crank body, and the mating friction member is used to reduce the friction resistance when the crank structure rotates around the crank axis relative to the connecting seat.

[0030] In one embodiment, the umbrella frame includes an umbrella cover rod, a support rod and a movable seat, one end of the support rod is rotatably connected to the umbrella cover rod, the other end of the support rod is rotatably connected to the movable seat, the upper end of the umbrella cover rod is rotatably connected to the upper end of the umbrella handle, and the movable seat is slidably arranged on the umbrella handle.

[0031] In one embodiment, the foldable umbrella also includes a linkage rope and a pulley, wherein the pulley is fixedly disposed on the umbrella handle, the linkage rope is wound around the pulley, one end of the linkage rope is connected to the crank handle connecting portion, and the other end of the linkage rope is connected to the movable seat.

[0032] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0033] The crank connection structure of the utility model comprises a crank structure and an umbrella handle. The umbrella handle is provided with a clearance hole for the crank structure to pass through only one side in the left-right direction. At least one end of the crank structure in the left-right direction is arranged in the umbrella handle cavity and is not exposed outside the umbrella handle. This makes the appearance of the entire crank connection structure simple and beautiful, reduces the possibility of scratching the user, and improves the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of a foldable umbrella in one embodiment of the utility model when it is transformed from a folded state to an open state;

[0035] Figure 2 Schematic diagram of the convertible umbrella of the present utility model when converting from the open state to the closed state;

[0036] Figure 3 Exploded view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model;

[0037] Figure 3a is Figure 3 Enlarged view of the connecting seat in;

[0038] Figure 4 Cross-sectional view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model;

[0039] Figure 4a is Figure 4 Enlarged view of part A in;

[0040] Figure 5a Schematic diagram of the umbrella handle and the rocking handle structure of the convertible umbrella of the present utility model when converting between the open state and the closed state Figure 1 ;

[0041] Figure 5b Rear view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 1 ; Figure 5c Left view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 1 ;

[0042] Figure 5d Front view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 1 ;

[0043] Figure 5e Right view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 1 ;

[0044] Figure 5f Bottom view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 1 ;

[0045] Figure 5g Top view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 1 ;

[0046] Figure 6a Schematic diagram of the umbrella handle and the rocking handle structure of the convertible umbrella of the present utility model when converting between the open state and the closed state Figure 2 ;

[0047] Figure 6b Rear view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 2 ;

[0048] Figure 6c The left view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 2 ;

[0049] Figure 6d The front view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 2 ;

[0050] Figure 6e The right view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 2 ;

[0051] Figure 6f The bottom view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 2 ;

[0052] Figure 6g The top view of the umbrella handle and the rocking handle structure in an embodiment of the present utility model Figure 2 ;

[0053] Figure 7a The rear view of the collapsible umbrella in the open state in an embodiment of the present utility model;

[0054] Figure 7b The left view of the collapsible umbrella in the open state in an embodiment of the present utility model;

[0055] Figure 7c The front view of the collapsible umbrella in the open state in an embodiment of the present utility model;

[0056] Figure 7d The right view of the collapsible umbrella in the open state in an embodiment of the present utility model;

[0057] Figure 7e The top view of the collapsible umbrella in the open state in an embodiment of the present utility model;

[0058] Figure 7f The bottom view of the collapsible umbrella in the open state in an embodiment of the present utility model;

[0059] Figure 8a The rear view of the collapsible umbrella in the collapsed state in an embodiment of the present utility model;

[0060] Figure 8b The left view of the collapsible umbrella in the collapsed state in an embodiment of the present utility model;

[0061] Figure 8c The front view of the collapsible umbrella in the collapsed state in an embodiment of the present utility model;

[0062] Figure 8d The right view of the collapsible umbrella in the collapsed state in an embodiment of the present utility model;

[0063] Figure 8e This is a top view of the collapsible umbrella in the collapsed state in an embodiment of the present utility model;

[0064] Figure 8f This is a bottom view of the collapsible umbrella in the collapsed state in an embodiment of the present utility model;

[0065] Wherein the reference numerals in the attached drawings:

[0066] 1 - umbrella handle; 11 - umbrella handle cavity; 12 - relief hole; 13 - linkage rope groove; 14 - inner wall of the umbrella handle; 2 - umbrella frame; 21 - umbrella surface rod; 22 - support rod; 23 - movable seat; 31 - linkage rope; 32 - pulley; 4 - connecting seat; 41 - connecting seat cavity; 42 - left side wall; 43 - right side wall; 44 - through hole of the connecting seat; 45 - rotation space; 5 - crank structure; 51 - crank body; 52 - crank connecting part; 521 - crank fixing shaft; 5211 - crank fixing shaft body; 5212 - crank fixing shaft cap body (limiting part); 5213 - connecting groove; 522 - crank connecting member; 523 - linkage rope hole; 53 - handle fixing shaft; 54 - screw; 55 - handle sleeve; 56 - outer wall of the crank connecting part; 61 - ratchet; 611 - one-way step; 62 - pawl; 63 - pawl elastic member; 64 - first friction member; 641 - kidney-shaped hole; 65 - second friction member; 651 - circular hole; 66 - elastic member; 67 - rivet; 71 - mating seat; 72 - mating friction member; 8 - crank axis; 9 - pawl axis. Detailed implementation manners

[0067] The following elaborates on the preferred embodiments of the present utility model in conjunction with the attached drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art. It should be noted here that the description of these embodiments is for helping to understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0068] See Figures 1 - 5g As shown in FIGS. 7a - 8f, the collapsible umbrella has an open state and a collapsed state, and specifically includes an umbrella handle 1, an umbrella frame 2, a linkage rope 31, a pulley 32, a connecting seat 4, a crank structure 5, a friction assembly, a mating seat 71 and a mating friction member 72.

[0069] The umbrella handle 1 extends in the up and down direction and is cylindrical as a whole. In other embodiments, the umbrella handle can also be set in the shape of a cuboid or other shapes. In some embodiments, the cross-sectional area of the umbrella handle is consistent at different heights, that is, the thickness of the whole umbrella handle is the same. In other embodiments, the cross-sectional area of the umbrella handle can also be set to be inconsistent at different heights, that is, the thickness of the whole umbrella handle can be different. The umbrella handle 1 has a hollow umbrella handle cavity 11. A relief hole 12 communicating with the umbrella handle cavity 11 is provided on one side of the umbrella handle 1 in the left and right direction. The relief hole 12 is used to cooperate with the crank structure 5. That is, to set the crank structure 5, only a relief hole 12 needs to be provided on one side of the umbrella handle 1 in the left and right direction, and no other holes for cooperating with the crank structure need to be provided on the other side of the umbrella handle 1 in the left and right direction. In this embodiment, the relief hole 12 is provided on the right side of the umbrella handle 1 and is arranged close to the bottom end of the umbrella handle 1, so as to facilitate the user to operate the crank structure 5.

[0070] The umbrella frame 2 includes umbrella surface rods 21, support rods 22 and movable seats 23. One end of the support rod 22 is rotatably connected to the umbrella surface rod 21, the other end of the support rod 22 is rotatably connected to the movable seat 23, the upper end of the umbrella surface rod 21 is rotatably connected to the upper end of the umbrella handle 1, and the movable seat 23 is slidably arranged on the umbrella handle 1. As Figure 2 shown, in this embodiment, the rotation connection point of the umbrella surface rod 21 and the support rod 22 is above half of the overall height of the umbrella surface rod 21. The movable seat 23 is sleeved on the umbrella handle 1 and can slide up and down relative to the umbrella handle 1. By adjusting the up and down position of the movable seat 23 on the umbrella handle 1, the umbrella surface rod 21 can be controlled to move away from or close to the umbrella handle 1, so that the umbrella frame 2 can be opened or closed relative to the umbrella handle 1. The umbrella surface rod 21 is specifically set to 4, and the support rod 22 is also four. In other embodiments, the umbrella surface rod 21 and the support rod 22 can also be set to other numbers. In other embodiments, each group of umbrella surface rods can also be set as an upper umbrella surface rod (not shown in the figure), a lower umbrella surface rod (not shown in the figure) and a linkage rod (not shown in the figure). In each group of umbrella surface rods, the upper ends of the upper umbrella surface rod and the lower umbrella surface rod are respectively rotatably connected to the umbrella handle, the linkage rod is respectively rotatably connected to the upper umbrella surface rod and the lower umbrella surface rod, and the linkage rod, the upper umbrella surface rod, the umbrella handle and the lower umbrella surface rod form a four-bar linkage mechanism, and the support rod is rotatably connected to the lower umbrella surface rod.

[0071] The pulley 32 is fixedly arranged at the upper end of the umbrella handle 1. The linkage rope 31 is wound around and passes through the pulley 32. One end of the linkage rope 31 is connected to the crank structure 5, and the other end of the linkage rope 31 is connected to the movable seat 23. In this embodiment, a linkage rope groove 13 is provided on the umbrella handle 1. A part of the linkage rope 31 is arranged in the umbrella handle cavity 11, and the other part of the linkage rope 31 passes through the linkage rope groove 13 and is arranged outside the umbrella handle cavity 11.

[0072] The connection seat 4 is fixedly arranged in the umbrella handle cavity 11, specifically at the clearance hole 12, and the connection seat 4 has a hollow connection seat cavity 41, the upper part of the connection seat cavity 41 is not closed, and in one embodiment, the lower part of the connection seat cavity 41 is also not closed, and the connection seat 4 includes a left side wall 42 and a right side wall 43, and the left side wall 42 and the right side wall 43 are arranged to form the connection seat cavity 41, wherein the left side wall 42 is roughly semicircular, and the right side wall 43 is vertically extended in the up-down direction, and the connection seat 4 is provided with a connection seat through hole 44 that passes through the left side wall 42, the right side wall 43 and the connection seat cavity 41 in the left-right direction. A part of the left side wall 42 is arranged to fit the inner wall 14 of the umbrella handle, and the other part of the left side wall 42 is recessed to the right, so as to form a rotation space 45 with the inner wall 14 of the umbrella handle.

[0073] The crank structure 5 is used to control the opening and closing of the umbrella frame 2 relative to the umbrella handle 1. At least one end of the crank structure 5 in the left and right directions is arranged in the umbrella handle cavity 11. In this embodiment, the left end of the crank structure 5 is arranged in the umbrella handle cavity 11, and the left end of the crank structure 5 is not exposed outside the umbrella handle 1, so that the entire umbrella handle has a simple appearance and reduces the possibility of scratching the user. The crank structure 5 includes a crank body 51 at least partially arranged outside the umbrella handle cavity 11 and a crank connection part 52 at least partially arranged in the umbrella handle cavity 11, and the crank connection part 52 is fixedly connected to the crank body 51. The crank structure 5 passes through the clearance hole 12 and the connecting seat 4, and the crank structure 5 is rotatably connected to the connecting seat 4 around the crank axis 8, and the crank axis 8 extends in the left and right direction.

[0074] Specifically, Figure 3 As shown, the crank structure 5 also includes a handle fixing shaft 53, a screw 54 and a handle cover 55. One end of the crank body 51 is connected to the crank connecting portion 52, and the other end of the crank body 51 is fixedly connected to the handle fixing shaft 53 by a screw 54. The handle cover 55 is sleeved on the handle fixing shaft 53. In some embodiments, the handle cover 55 can be set to a soft material, which provides a better experience for the user when gripping. The crank body 51 and the crank connecting portion 52 are approximately at an angle of 90 degrees, and the handle fixing shaft 53 and the crank body 51 are also approximately at an angle of 90 degrees.

[0075] The crank connecting portion 52 extends in the left - right direction. A limiting member is provided on the outer wall 56 of the crank connecting portion. Specifically, the crank connecting portion 52 includes a crank fixed shaft 521 and a crank connecting member 522. The crank fixed shaft 521 includes a crank fixed shaft body 5211, a crank fixed shaft cap body 5212 (limiting member) fixedly provided at one end of the crank fixed shaft body 5211, and a connecting groove 5213 provided at the other end of the crank fixed shaft body 5211. In this embodiment, the crank fixed shaft cap body 5212 is the left end portion of the crank structure 5. The crank connecting member 522 is provided between the crank fixed shaft 521 and the crank body 51 to fixedly connect the crank fixed shaft 521 and the crank body 521. In one embodiment, the crank connecting member 522 is fixedly connected to the crank fixed shaft 521 through the connecting groove 5213. In one embodiment, the crank connecting member 522 is a screw. The crank fixed shaft body 5211 passes through the connecting seat through - hole 44, and part of the crank fixed shaft body 5211 is arranged in the connecting seat cavity 41. The crank fixed shaft cap body 5212 is arranged in the umbrella handle cavity 11 and is specifically arranged in the rotating space 45. The crank fixed shaft cap body 5212 is in abutting cooperation with the left side wall 42 of the connecting seat 4 to prevent the crank connecting portion 52 from disengaging from the connecting seat 4. It should be noted that the abutting cooperation here includes both direct abutting and indirect abutting. In other embodiments, the limiting member can also be set as a limiting groove (not shown in the figure) opened on the crank fixed shaft 521, and the connecting seat 4 has a convex block (not shown in the figure) arranged in the limiting groove. The rotational connection between the crank structure 5 and the connecting seat 4 is realized through the cooperation of the limiting groove and the convex block. A linkage rope hole 523 is opened on the crank fixed shaft body 5211 for the linkage rope 31 to pass through, so that the linkage rope 31 is fixedly connected to the crank fixed shaft 521. The arrangement of the connecting seat cavity 41 facilitates the passing of the linkage rope 31 and also facilitates the winding of the linkage rope 31 around the crank fixed shaft 521 when the crank structure 5 controls the opening and closing of the umbrella frame 2, providing space for the linkage rope 31 to wind around the crank fixed shaft 521.

[0076] The friction assembly is used to provide a one - way frictional force when the collapsible umbrella is converted from the open state to the closed state. The friction assembly includes a ratchet 61, a pawl 62, a pawl elastic member 63, and a first friction member 64.

[0077] The pawl 62 is rotatably connected to the connecting seat 4. The ratchet wheel 61 is sleeved on the shank fixing shaft body 5211. The pawl 62 abuts against the ratchet wheel 61. The pawl elastic member 63 is used to provide the elastic force required to keep the pawl 62 always abutting against the ratchet wheel 61. In one embodiment, the pawl 62 is rotatably connected to the upper part of the right side wall 43 around the pawl axis line 9 extending in the left-right direction. The pawl 62 is rotatably arranged on the right side wall 43 through a rivet 67. The pawl axis line 9 is parallel to the shank axis line 8. The pawl elastic member 63 is specifically a torsion spring. One end of the torsion spring abuts against the connecting seat 4, and the other end abuts against the pawl 62. A one-way step 611 is provided on the ratchet wheel 61. Through the cooperation of the one-way step 611 and the pawl 62, the ratchet wheel 61 can only rotate unidirectionally around the shank axis line 8. In one embodiment, the ratchet wheel 61 can only rotate clockwise unidirectionally.

[0078] In one embodiment, the friction assembly includes two first friction members 64. The two first friction members 64 are respectively arranged on the left and right sides of the ratchet wheel 61. The first friction member 64 is in frictional contact with the ratchet wheel 61. The first friction member 64 is used to increase the frictional resistance when the shank connecting portion 52 rotates relative to the ratchet wheel 61 around the shank axis line 8.

[0079] In one embodiment, the collapsible umbrella includes two second friction members 65, which are respectively arranged on the left and right sides of the connecting seat 4. The second friction member 65 is in frictional contact with the shank fixing shaft 521. The second friction member 65 is used to reduce the frictional resistance when the shank connecting portion 52 rotates relative to the connecting seat 4 around the shank axis line 8. In one embodiment, the material of the first friction member 64 is set as a rough iron sheet, and the material of the second friction member 65 is set as a smooth plastic sheet. In one embodiment, the collapsible umbrella further includes an elastic member 66. The elastic member 66 is arranged between the shank body 51 and the first friction member 64. The elastic member 66 is used to make the first friction member 64 closely adhere to the ratchet wheel 61, so as to increase the frictional resistance between the first friction member 64 and the ratchet wheel 61. Both the first friction member 64 and the second friction member 65 are sleeved on the shank fixing shaft 521. The first friction member 64 cannot rotate relative to the shank fixing shaft 521 around the shank axis line 8. Specifically in one embodiment, both of the two first friction members 64 are provided with kidney-shaped holes 641, and the part of the shank fixing shaft 521 passing through the first friction member 64 is also kidney-shaped. The ratchet wheel 61 and the two second friction members 65 are provided with circular holes 651. Through the setting of the friction assembly, the collapsible umbrella is more stable when being converted from the opened state to the collapsed state, and will not suddenly collapse due to the gravity of the umbrella frame 2, avoiding accidental injuries.

[0080] The fitting seat 71 is disposed between the crank handle connecting portion 52 and the umbrella handle 1. At least a part of the fitting seat 71 is clamped in the relief hole 12, and a part of the fitting seat 71 is disposed outside the umbrella handle 1. The fitting seat 71 is fixedly connected to the umbrella handle 1. The fitting friction member 72 is in frictional contact with the crank handle body 51. Specifically, in one embodiment, the fitting friction member 72 is disposed between the crank handle body 51 and the fitting seat 71. The fitting friction member 72 is used to reduce the frictional resistance when the crank handle connecting portion 52 rotates relative to the connecting seat 4 around the crank handle axis 8. In one embodiment, the material of the fitting friction member 72 is set as a smooth plastic sheet. In one embodiment, the cross section of the crank handle body 51 is T-shaped. A part of the crank handle body 51 passes through the fitting seat 71, and a part of the crank handle body 51 abuts against the fitting friction member 72. The fitting seat 71 forms an obstruction to the elastic member 66 to prevent the elastic member 66 from being exposed.

[0081] Thus, as Figure 4 shown, the inner wall 14 of the umbrella handle, the crank handle fixing shaft cap body 5212, the second friction member 65, and the left side wall 42 of the connecting seat 4 are sequentially arranged from left to right. The right side wall 43 of the connecting seat 4, the second friction member 65, the first friction member 64, the ratchet 61, and the first friction member 64 are also sequentially arranged from left to right.

[0082] As Figures 7a - 7f , when in the open state, the umbrella frame 2 is opened relative to the umbrella handle 1. Specifically, the movable seat 23 is located relatively above the umbrella handle 1, and the umbrella surface rod 21 is disposed away from the umbrella handle 1. At this time, the linkage rope 31 is wound around the crank handle fixing shaft body 5211 more; as Figures 8a - 8f , when in the retracted state, the umbrella frame 2 is retracted relative to the umbrella handle 1. Specifically, the movable seat 23 is located relatively below the umbrella handle 1, and the umbrella surface rod 21 is disposed close to the umbrella handle 1. At this time, the linkage rope 31 is wound around the crank handle fixing shaft body 5211 less; when the collapsible umbrella is switched from the open state to the retracted state, as Figure 2 shown, the user operates the crank handle structure 5, so that the crank handle body 51, the crank handle connecting member 522, and the crank handle fixing shaft 521 all rotate counterclockwise around the crank handle axis 8 relative to the connecting seat 4. The two first friction members 64 also rotate counterclockwise around the crank handle axis 8 relative to the connecting seat 4. Due to the arrangement of the pawl 62, the ratchet 61 cannot rotate counterclockwise around the crank handle axis 8 relative to the connecting seat 4. At this time, the user needs to overcome the frictional resistance generated between the first friction member 64 and the ratchet 61 to switch the collapsible umbrella to the retracted state. The linkage rope 31 gradually reduces the winding around the crank handle fixing shaft body 5211 due to the rotation of the crank handle fixing shaft body 5211. The linkage rope 31 elongates. The movable seat 23 slides downward relative to the umbrella handle 1 under the action of gravity due to the elongation of the linkage rope 31, and the umbrella surface rod 21 gradually approaches the umbrella handle 1; when the collapsible umbrella is switched from the retracted state to the open state, as Figure 1As shown, the user operates the crank structure 5, causing the crank body 51, the crank connecting member 522, and the crank fixing shaft 521 to rotate clockwise relative to the connecting seat 4 around the crank axis 8. The two first friction members 64 also rotate clockwise relative to the connecting seat 4 around the crank axis 8. Since the ratchet pawl 62 can only prevent the counterclockwise rotation of the ratchet wheel 61, the ratchet wheel 61 also rotates clockwise relative to the connecting seat 4 around the crank axis 8. The linkage rope 31 gradually winds around the crank fixing shaft body 5211 and increases its winding due to the rotation of the crank fixing shaft body 5211, and the linkage rope 31 shortens. The movable seat 23 slides upward relative to the umbrella handle 1 under the pulling of the linkage rope 31 due to the shortening of the linkage rope 31, and the umbrella surface rod 21 gradually moves away from the umbrella handle 1.

[0083] As Figures 6a - 6g shown, the difference between this embodiment and Figures 5a - 5g the embodiment mainly lies in that in this embodiment, the shape of the handle sleeve 55 in the crank structure 5 is different. In this embodiment, the handle sleeve 55 is shorter in length and has uneven structures on the outside to increase the frictional force for the user to grip.

[0084] In the description of the present utility model, the directions such as "front", "rear", "left", "right", "up", and "down" involved are all defined with reference to the directions observed by the user when using the collapsible umbrella. That is, as Figure 7c shown, the left side direction in the figure is "left", the right side direction in the figure is "right", the upper side direction in the figure is "up", the lower side direction in the figure is "down", and the directions perpendicular to the viewing angle in the figure are "front" and "rear". The definition of the above directions is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0085] The above embodiments are only for illustrating the technical concept and features of the present utility model, and their purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly. It should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

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 communicating with the umbrella handle cavity is opened on one side of the umbrella handle in the left-right direction; A crank structure, at least part of which passes through the clearance hole, the crank structure is rotatably arranged 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 arranged in the umbrella handle cavity.

2. The crank connection structure according to claim 1, characterized in that: The crank connection structure also includes a connecting seat, which is fixedly arranged in the umbrella handle cavity. The crank structure includes a crank body that is at least partially arranged outside the umbrella handle cavity and a crank connection part that is at least partially arranged in the umbrella handle cavity. The crank connection part is fixedly connected to the crank body, and at least part of the crank structure passes through the connecting seat. The crank structure is rotatably connected to the connecting seat around the crank axis. A limiting member is provided on the outer wall of the crank connection part. The limiting member is arranged in the umbrella handle cavity and cooperates with the connecting seat. The limiting member is used to limit the crank structure from escaping from the clearance hole.

3. The crank connection structure according to claim 2, characterized in that: The crank connection part includes a crank fixing shaft and a crank connecting piece, the crank fixing shaft is provided with the limit piece, the limit piece is abutted against the connecting seat, and the crank connecting piece is arranged between the crank fixing shaft and the crank body for fixedly connecting the crank fixing shaft and the crank body.

4. The crank connection structure according to claim 3, characterized in that: The connecting seat and the inner wall of the umbrella handle are arranged to form a rotation space, the crank fixing shaft includes a crank fixing shaft body and a crank fixing shaft cap body fixedly arranged at one end of the crank fixing shaft body, the crank fixing shaft cap body is the limiting member, the crank fixing shaft cap body is arranged in the rotation space, and the crank fixing shaft body passes through the connecting seat.

5. The crank connection structure according to claim 4, characterized in that: The other end of the crank fixing shaft body is provided with a connecting groove, and the crank connecting piece is fixedly connected to the crank fixing shaft through the connecting groove.

6. A foldable umbrella, characterized in that: include: An umbrella handle, wherein the umbrella handle has a hollow umbrella handle cavity, and a clearance hole communicating with the umbrella handle cavity is opened on one side of the umbrella handle in the left-right direction; An umbrella frame, which can be opened and closed relative to the umbrella handle; A crank structure, at least a portion of which passes through the clearance hole, the crank structure is rotatably arranged relative to the umbrella handle around the crank axis, and at least one end of the crank structure in the left and right direction is arranged in the umbrella handle cavity; The foldable umbrella has an open state and a folded state. When in the open state, the umbrella frame is opened relative to the umbrella handle, and when in the folded state, the umbrella frame is folded relative to the umbrella handle. When the crank structure rotates relative to the umbrella handle around the axis of the crank, the foldable umbrella switches between the open state and the folded state.

7. The foldable umbrella according to claim 6, characterized in that: The foldable umbrella also includes a connecting seat, which is fixedly arranged in the umbrella handle cavity. The crank structure includes a crank body that is at least partially arranged outside the umbrella handle cavity and a crank connecting part that is at least partially arranged in the umbrella handle cavity. The crank connecting part is fixedly connected to the crank body, at least part of the crank structure passes through the connecting seat, and the crank structure is rotatably connected to the connecting seat around the crank axis. A limiting member is provided on the outer wall of the crank connecting part, and the limiting member is arranged in the umbrella handle cavity and cooperates with the connecting seat. The limiting member is used to limit the crank structure from escaping from the clearance hole.

8. The foldable umbrella according to claim 7, characterized in that: The crank connection part includes a crank fixing shaft and a crank connecting piece, the crank fixing shaft is provided with the limit piece, the limit piece is abutted against the connecting seat, and the crank connecting piece is arranged between the crank fixing shaft and the crank body for fixedly connecting the crank fixing shaft and the crank body.

9. The foldable umbrella according to claim 8, characterized in that: The foldable umbrella further comprises a friction assembly, and the friction assembly is used to provide a unidirectional friction force when the foldable umbrella is converted from the open state to the folded state.

10. The foldable umbrella according to claim 9, characterized in that: The friction assembly includes a ratchet, a pawl and a pawl elastic member, the pawl is rotatably connected to the connecting seat, the ratchet is sleeved on the crank handle fixed shaft, the pawl is abutted against the ratchet, and the pawl elastic member is used to provide the elastic force required to make the pawl always abut against the ratchet. When switching from the open state to the retracted state, the crank handle fixed shaft, the crank handle body and the crank handle connecting member rotate around the crank handle axis center line, and the pawl prevents the ratchet from rotating around the crank handle axis center line. When switching from the retracted state to the open state, the crank handle fixed shaft, the crank handle body, the crank handle connecting member and the ratchet rotate around the crank handle axis center line.

11. The foldable umbrella according to claim 10, characterized in that: The friction assembly also includes a first friction member, which is in frictional contact with the ratchet. The first friction member is used to increase the friction resistance when the crank connection portion rotates around the crank axis relative to the ratchet. When switching between the open state and the folded state, the first friction member rotates around the crank axis. The foldable umbrella also includes an elastic member, which is arranged between the crank body and the first friction member. The elastic member is used to make the first friction member close to the ratchet.

12. The foldable umbrella according to claim 11, characterized in that: The foldable umbrella further comprises a second friction member, which is in frictional contact with the crank fixing shaft, and is used to reduce the friction resistance when the crank connection portion rotates relative to the connection seat around the crank axis.

13. The foldable umbrella according to claim 12, characterized in that: The first friction member and the second friction member are both sleeved on the crank fixing shaft, and the first friction member cannot rotate around the crank axis relative to the crank fixing shaft.

14. The foldable umbrella according to claim 12, characterized in that: There are two first friction members and two second friction members. The two first friction members are respectively arranged on the left and right sides of the ratchet wheel, and the two second friction members are respectively arranged on the left and right sides of the connecting seat.

15. The foldable umbrella according to claim 8, characterized in that: The connecting seat has a hollow connecting seat cavity, the upper part of which is not closed, and at least part of the crank fixing shaft is arranged in the connecting seat cavity. The foldable umbrella also includes a linkage rope, one end of which is arranged in the connecting seat cavity and connected to the crank fixing shaft, and the other end of the linkage rope is connected to the umbrella frame.

16. The foldable umbrella according to claim 15, characterized in that: A linkage rope groove is provided on the umbrella handle, a part of the linkage rope is arranged in the umbrella handle cavity, and another part of the linkage rope passes through the linkage rope groove and is arranged outside the umbrella handle cavity.

17. The foldable umbrella according to claim 7, characterized in that: The foldable umbrella further comprises a matching seat, which is arranged between the crank body and the umbrella handle, at least a part of the matching seat is clamped in the evacuation hole, and the matching seat is fixedly connected to the umbrella handle.

18. The foldable umbrella according to claim 17, characterized in that: The foldable umbrella further comprises a matching friction member, which is arranged between the matching seat and the crank body, and is used to reduce the friction resistance when the crank structure rotates relative to the connecting seat around the crank axis.

19. The foldable umbrella according to claim 6, characterized in that: The umbrella frame includes an umbrella cover rod, a support rod and a movable seat, one end of the support rod is rotatably connected to the umbrella cover rod, the other end of the support rod is rotatably connected to the movable seat, the upper end of the umbrella cover rod is rotatably connected to the upper end of the umbrella handle, and the movable seat is slidably arranged on the umbrella handle.

20. The foldable umbrella according to claim 19, characterized in that: The foldable umbrella also includes a linkage rope and a pulley, wherein the pulley is fixedly arranged on the umbrella handle, the linkage rope is wound around the pulley, one end of the linkage rope is connected to the crank handle connecting part, and the other end of the linkage rope is connected to the movable seat.

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