Folding mechanism for surfboard

Abstract

The utility model discloses a folding mechanism for a surfboard. Comprising a connecting pipe, a folding base and a driving device, a connecting groove is formed in the top of the folding base, the bottom of the connecting pipe is rotationally connected with the connecting groove through a rotating shaft, sliding arc grooves are symmetrically formed in the left side wall and the right side wall of the connecting groove, and each sliding arc groove comprises an arc groove and limiting grooves symmetrically formed in the front end and the rear end of the arc groove; sliding holes are symmetrically formed in the left side and the right side of the lower portion of the connecting pipe, the sliding holes and the sliding arc grooves are in one-to-one correspondence, the sliding holes and the connecting pipe are consistent in trend, and a limiting rod is arranged in the connecting pipe; the two ends of the limiting rod penetrate through the sliding holes in the corresponding sides and extend into the sliding arc grooves in the corresponding sides, the two ends of the limiting rod can slide in the sliding arc grooves in the corresponding sides, and the driving device is used for driving the limiting rod to slide along the sliding holes. The folding table has the advantages of being convenient to store and transport.

Description

Technical Field

[0001] The utility model relates to the technical field of surfboard components, in particular to a folding mechanism for a surfboard. Background Art

[0002] Surfboards can be used as sports equipment for surfing enthusiasts at the seaside, on lakes, and on rivers, and battery-powered surfboards are particularly popular among enthusiasts. The built-in battery can provide strong kinetic energy for the built-in electric motor. Battery-powered surfboards are more convenient than boats and jet boards, and can be used for rescue purposes to achieve rapid emergency rescue at the seaside and lakes. In order to stabilize the body shape of the user on the surfboard, a surfboard operating tube with an integrated control device is often provided at the front end of the surfboard. The user can stand safely on the surfboard by holding the control board with both hands and keeping his feet close to the surface of the surfboard. However, the current surfboards with surfboard operating tubes are relatively large in size, and the control board and the surfboard are an integrated structure, which is not convenient for storage and transportation. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides a folding mechanism for a surfboard, which has the advantages of being easy to store and transport.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a folding mechanism for a surfboard, comprising a connecting tube for connecting with an operating tube of a surfboard, a folding base for connecting with a board body of the surfboard and a driving device, wherein a connecting groove is provided at the top of the folding base, a bottom of the connecting tube is rotatably connected with the connecting groove by a rotating shaft, sliding arc grooves are symmetrically provided on the left and right side walls of the connecting groove, the sliding arc groove comprises an arc groove and limiting grooves symmetrically provided at the front and rear ends of the arc groove, the limiting groove is communicated with a corresponding end of the arc groove, sliding holes are symmetrically provided on the left and right sides of the lower part of the connecting tube, the sliding holes correspond to the sliding arc grooves one by one, the sliding holes and the connecting tube have the same direction, a limiting rod is provided in the connecting tube, two ends of the limiting rod pass through the sliding holes on the corresponding side and extend into the sliding arc groove on the corresponding side, the two ends of the limiting rod can slide in the sliding arc groove on the corresponding side, and the driving device is used to drive the limiting rod to slide along the sliding holes.

[0006] The driving device drives the limiting rod to move downward along the sliding hole so that the two ends of the limiting rod move into the limiting grooves on the corresponding rear side of the sliding arc groove. At this time, the connecting tube and the surfboard operating tube are closely attached to the surfboard body, and the surfboard is folded. The overall volume of the folded surfboard is small, which is convenient for storage and transportation.

[0007] Preferably, the center of the circular arc groove is located on the axis of the rotating shaft.

[0008] Preferably, the extension line of the limiting groove intersects with the axis of the rotating shaft.

[0009] Preferably, the driving device includes a reset assembly and a lifting assembly, the reset assembly includes a fixing rod laterally arranged in the connecting tube, the fixing rod is located directly below the limiting rod, a pull-down spring is arranged between the fixing rod and the limiting rod, and the lifting assembly is used to drive the limiting rod to rise.

[0010] Preferably, the lifting assembly includes a control rope, a flap and a flap seat, the control rope is arranged in the surfboard operating tube, the connecting tube is arranged at the bottom of the surfboard operating tube, the flap seat is arranged at the front side of the upper part of the surfboard operating tube, the flap seat extends into the surfboard operating tube, the flap cover is arranged at the opening of the flap seat and is rotatably connected to the flap seat, a return torsion spring is provided between the flap and the flap seat, the return torsion spring is used to make the flap cover be arranged at the opening of the flap seat, a pull opening is provided on the front side of the flap, the top of the control rope is fixedly connected to the flap, and the bottom of the control rope is fixedly connected to the limit rod.

[0011] The flap is pulled through the pull opening to rotate the flap. When the flap turns over, the operating rope is pulled upward in the connecting pipe, so that the bottom of the operating rope drives the limit rod to slide upward in the sliding hole, and the limit rod drives the pull-down spring to enter a stretched state.

[0012] Preferably, the lifting assembly also includes a guide module, which includes a guide shaft arranged in a connecting tube, the guide shaft is located directly above the limiting rod, a first through hole vertically passing through the guide shaft is provided, a second through hole is provided at the bottom of the flap seat, the top of the operating rope is fixedly connected to the flap via the second through hole, and the bottom of the operating rope is fixedly connected to the limiting rod via the first through hole.

[0013] Preferably, a rope loop is provided on the operating rope, and the rope loop is located between the flap seat and the guide shaft.

[0014] A rope loop is arranged on the operating rope, and the rope loop is located between the flap seat and the guide shaft, and the guide shaft is located at the top of the inner wall of the first tube body, so as to avoid the operating rope from being worn and broken during the process of pulling and resetting.

[0015] Preferably, a cavity is provided in the flap, the cavity passes through the flap left and right, the cavity is arranged in an up-and-down direction, a sliding shaft that can slide along the cavity is provided in the cavity, a notch is provided at the bottom of the cavity, and the top of the control rope is fixedly connected to the sliding shaft through the notch.

[0016] The beneficial effects of the utility model are as follows: the connecting tube and the folding base can realize the folding of the surfboard; the pulling component can pull the control rope; the resetting component can pull down the control rope to reset; the guiding module can guide and protect the control rope to prevent the control rope from being worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the connecting pipe and the folding base in the utility model;

[0019] Figure 3 yes Figure 2 Side view of

[0020] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0021] Figure 5 It is a cross-sectional view of the lifting assembly in the utility model.

[0022] In the figure: 1, folding base, 11, connecting groove, 12, sliding arc groove, 121, arc groove, 122, limiting groove, 2, connecting pipe, 21, sliding hole, 22, limiting rod, 3, reset assembly, 31, fixing rod, 32, pull-down spring, 4, pulling assembly, 41, operating rope, 42, flap, 43, flap seat, 44, rope loop, 5, guide module, 51, guide shaft, 52, sliding shaft, 6, surfboard operating tube, 61, surfboard body, 62, reset torsion spring, 63, cavity. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0024] Embodiment: A folding mechanism for a surfboard in this embodiment, such as Figures 1 to 5 As shown, it includes a connecting pipe 2 for connecting to a surfboard operating pipe 6, a folding base 1 for connecting to a surfboard body 61, and a driving device. A connecting groove 11 is provided on the top of the folding base 1. The bottom of the connecting pipe 2 is rotatably connected to the connecting groove 11 through a rotating shaft. The left and right side walls of the connecting groove 11 are symmetrically provided with sliding arc grooves 12. The sliding arc groove 12 includes an arc groove 121 and limiting grooves 122 symmetrically provided at the front and rear ends of the arc groove 121. The limiting groove 122 is connected to the corresponding end of the arc groove 121. A sliding hole 21 is symmetrically provided on the left and right sides of the lower part of the connecting tube 2. The sliding holes 21 correspond to the sliding arc groove 12 one by one. The sliding holes 21 and the connecting tube 2 have the same direction. A limiting rod 22 is provided in the connecting tube 2. Both ends of the limiting rod 22 pass through the sliding hole 21 on the corresponding side and extend into the sliding arc groove 12 on the corresponding side. Both ends of the limiting rod 22 can slide in the sliding arc groove 12 on the corresponding side. The center of the circular arc groove 121 is located on the axis of the rotating shaft, and the extension line of the limiting groove 122 intersects with the axis of the rotating shaft.

[0025] The driving device includes a reset assembly 3 and a lifting assembly 4. The reset assembly 3 includes a fixing rod 31 transversely arranged in the connecting tube 2. The fixing rod 31 is located directly below the limiting rod 22. A pull-down spring 32 is arranged between the fixing rod 31 and the limiting rod 22.

[0026] The lifting assembly 4 includes a control rope 41, a flap 42 and a flap seat 43. The control rope 41 is arranged in the surfboard operating tube 6, the connecting tube 2 is arranged at the bottom of the surfboard operating tube 6, the flap seat 43 is arranged on the upper front side of the surfboard operating tube 6, the flap seat 43 extends into the surfboard operating tube 6, the flap 42 covers the opening of the flap seat 43 and is rotatably connected to the flap seat 43, a return torsion spring 62 is provided between the flap 42 and the flap seat 43, the return torsion spring 62 is used to make the flap 42 cover the opening of the flap seat 43, a pull opening is provided on the front side of the flap 42, the top of the control rope 41 is fixedly connected to the flap 42, and the bottom of the control rope 41 is fixedly connected to the limit rod 22.

[0027] The lifting assembly 4 further includes a guide module 5, which includes a guide shaft 51 disposed in the connecting tube 2, the guide shaft 51 being located directly above the limiting rod 22, a first through hole vertically penetrating the guide shaft 51, a second through hole being provided at the bottom of the flap seat 43, the top of the operating rope 41 being fixedly connected to the flap 42 through the second through hole, and the bottom of the operating rope 41 being fixedly connected to the limiting rod 22 through the first through hole. A rope loop 44 is sleeved on the operating rope 41, and the rope loop 44 is located between the flap seat 43 and the guide shaft 51.

[0028] A cavity 63 is provided in the flap 42. The cavity 63 passes through the flap 42 from left to right and is arranged in an up-and-down direction. A sliding shaft 52 that can slide along the cavity 63 is provided in the cavity 63. A notch is provided at the bottom of the cavity 63. The top of the operating rope 41 is fixedly connected to the sliding shaft 52 through the notch.

[0029] In the present solution, when the surfboard is in the unfolded state, the two ends of the limit rod are respectively located in the limit grooves on the front side of the sliding arc groove on the corresponding side, the connecting tube is connected to the bottom of the surfboard operating tube, and the folding base is detachably connected to the front side of the top of the surfboard body. When the surfboard needs to be folded, the flap is pulled to rotate forward, and when the flap is turned over, the control rope is pulled upward in the connecting tube and the surfboard operating tube, so that the bottom of the control rope drives the limit rod to slide upward in the sliding hole, and the limit rod drives the pull-down spring to enter the stretched state. During the upward sliding process of the limit rod, the two ends of the limit rod slide from the limit grooves on the front side of the corresponding sliding arc groove to the arc groove. At this time, the surfboard operating tube is pulled backward to make the surfboard operating tube bring The movable connecting tube rotates backward around the rotating axis, and the connecting tube drives the limiting rod to slide backward in the arc groove. During the sliding process of the limiting rod in the arc groove, the flap is loosened so that the flap is re-covered at the opening of the flap seat through the return torsion spring. When the connecting tube rotates to the top of the board surface of the surfboard and is close to the board surface of the surfboard, the two ends of the limiting rod are located at the top of the limiting groove on the rear side of the corresponding sliding arc groove, the flap is released, and the limiting rod moves downward under the downward pulling force of the pull-down spring, and the two ends of the limiting rod move to the bottom of the limiting groove on the rear side of the sliding arc groove on the corresponding side respectively. At this time, the connecting tube and the surfboard operating tube are close to the surfboard body, and the surfboard is folded. The overall volume of the folded surfboard is small, which is convenient for storage and transportation.

[0030] The operating rope is worn and broken during the lifting and resetting process. A rope loop is provided on the operating rope, and the rope loop is located between the flap seat and the guide shaft. The guide shaft is located at the top of the inner wall of the first tube body, thereby avoiding the operating rope from being worn and broken during the lifting and resetting process.

[0031] The control rope will be damaged when the flap rotates excessively. In order to avoid the control rope being damaged due to excessive stretching of the flap, after the flap rotates beyond the preset angle, the top of the control rope drives the sliding shaft to slide downward along the cavity. At this time, the total stretching length of the control rope remains unchanged and will not be affected by the tension after the flap rotates excessively.

Claims

1. A folding mechanism for a surfboard, characterized in that: The invention comprises a connecting pipe (2) for connecting to a surfboard operating pipe (6), a folding base (1) for connecting to a surfboard body (61), and a driving device, wherein a connecting groove (11) is provided at the top of the folding base (1), and the bottom of the connecting pipe (2) is rotatably connected to the connecting groove (11) via a rotating shaft, and sliding arc grooves (12) are symmetrically provided on the left and right side walls of the connecting groove (11), and the sliding arc groove (12) comprises an arc groove (121) and limiting grooves (122) symmetrically provided at the front and rear ends of the arc groove (121), and the limiting grooves (122) and the arc groove (121) are symmetrically provided. ) is connected to the corresponding end, the lower left and right sides of the connecting tube (2) are symmetrically provided with sliding holes (21), the sliding holes (21) correspond to the sliding arc grooves (12) one by one, the sliding holes (21) and the connecting tube (2) have the same direction, a limiting rod (22) is provided in the connecting tube (2), both ends of the limiting rod (22) pass through the sliding holes (21) on the corresponding side and extend into the sliding arc groove (12) on the corresponding side, the two ends of the limiting rod (22) can slide in the sliding arc groove (12) on the corresponding side, and the driving device is used to drive the limiting rod (22) to slide along the sliding holes (21).

2. The folding mechanism for a surfboard according to claim 1, characterized in that: The center of the circular arc groove (121) is located on the axis of the rotating shaft.

3. The folding mechanism for a surfboard according to claim 2, characterized in that: An extension line of the limiting groove (122) intersects with the axis of the rotating shaft.

4. The folding mechanism for a surfboard according to claim 2, characterized in that: The driving device comprises a reset assembly (3) and a lifting assembly (4); the reset assembly (3) comprises a fixing rod (31) arranged transversely in the connecting tube (2); the fixing rod (31) is located directly below the limiting rod (22); a pull-down spring (32) is arranged between the fixing rod (31) and the limiting rod (22); and the lifting assembly (4) is used for driving the limiting rod (22) to rise.

5. The folding mechanism for a surfboard according to claim 4, characterized in that: The lifting assembly (4) comprises a control rope (41), a flap (42) and a flap seat (43); the control rope (41) is arranged in a surfboard operating tube (6); the connecting tube (2) is arranged at the bottom of the surfboard operating tube (6); the flap seat (43) is arranged at the front side of the upper part of the surfboard operating tube (6); the flap seat (43) extends into the surfboard operating tube (6); the flap (42) is covered at the opening of the flap seat (43) and is rotatably connected to the flap seat (43); a return torsion spring (62) is arranged between the flap (42) and the flap seat (43); the return torsion spring (62) is used to make the flap (42) cover the opening of the flap seat (43); a pull opening is arranged at the front side of the flap (42); the top of the control rope (41) is fixedly connected to the flap (42); and the bottom of the control rope (41) is fixedly connected to the limit rod (22).

6. The folding mechanism for a surfboard according to claim 5, characterized in that: The lifting assembly (4) also includes a guide module (5), and the guide module (5) includes a guide shaft (51) arranged in the connecting tube (2), and the guide shaft (51) is located directly above the limiting rod (22). A first through hole is vertically penetrated in the guide shaft (51), and a second through hole is provided at the bottom of the flap seat (43). The top of the operating rope (41) is fixedly connected to the flap (42) through the second through hole, and the bottom of the operating rope (41) is fixedly connected to the limiting rod (22) through the first through hole.

7. The folding mechanism for a surfboard according to claim 6, characterized in that: The control rope (41) is sleeved with a rope loop (44), and the rope loop (44) is located between the flap seat (43) and the guide shaft (51).

8. The folding mechanism for a surfboard according to claim 5, characterized in that: A cavity (63) is provided in the flap (42), and the cavity (63) is arranged in an up-and-down direction. A sliding shaft (52) that can slide along the cavity (63) is provided in the cavity (63). A notch is provided at the bottom of the cavity (63), and the top of the operating rope (41) is fixedly connected to the sliding shaft (52) through the notch.

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