A dry land dragon boat foot propulsion device

Abstract

A kind of dry land dragon boat foot propulsion device, including the power system being arranged in the cockpit of hull, with power system connection and ball hinge installation on the hull on the oar, auxiliary training device and prop up device;Power system includes fixedly installed support frame on the hull, foot pedal assembly installed on support frame, power transmission assembly, and corresponding oar setting, installation in the belt drive structure in the hull;The top of oar is ball hinge connected with the transmission belt corresponding to the belt drive structure;Auxiliary training device includes fixedly installed on the hull, and the limiting rod of limiting sliding block is slidably installed on the rod, and the adjusting sliding block is slidably installed on the oar rod, and the elastic rope is connected between limiting sliding block and adjusting sliding block;The present application realizes free advancing, retreating and accurate turning, and can prop up the hull in narrow training site, simulate the resistance of oar when real contact ground, so as to realize the training of foot propulsion in the case where hull does not move.

Description

Technical Field

[0001] This invention relates to the field of land dragon boat technology, and in particular to a foot-pedal propulsion device for land dragon boats. Background Technology

[0002] Land-based dragon boats, with their advantage of not being restricted by water, have become a new medium for inheriting dragon boat culture and promoting the sport, and are widely loved by the public. Among the many propulsion methods, the design of using a foot pedal to drive the paddle attempts to combine the traditional dragon boat paddling motion with the energy-saving characteristics of foot pedaling, hoping to bring a unique sporting experience and competitive fun.

[0003] However, existing land-based dragon boats, which use foot pedals to drive the paddles, have many structural and performance defects, making it difficult to meet diverse usage needs. In terms of motion control, existing devices can only achieve forward movement in one direction, lacking a flexible forward and backward control mechanism, and cannot simulate the scenario of a real dragon boat turning flexibly in water. When turning, it mostly relies on manual pushing or adjusting the direction of the dragon boat, which is inconvenient to operate and has poor steering accuracy, making it difficult to achieve precise and smooth turning maneuvers, which greatly limits the diversity and fun of training and competition.

[0004] Furthermore, due to limitations in training environments (such as small spaces where land dragon boats cannot travel long distances), existing land dragon boat pedal devices cannot meet the training needs of athletes.

[0005] To overcome the shortcomings of existing technologies, there is an urgent need to develop a foot-operated propulsion device for land-based dragon boats that can move freely forward and backward, turn precisely and flexibly, and can also lift the hull and simulate the paddling motion of real oars. Summary of the Invention

[0006] To address the above problems, this invention proposes a foot-operated propulsion device for dryland dragon boats, and the technical solution used is as follows:

[0007] A foot-operated propulsion device for a land-based dragon boat includes a power system installed in the cabin of the boat, a pair of paddles connected to the power system and ball-jointed to the boat, and a support device installed at the bottom of the boat.

[0008] The power system includes a support frame fixedly installed on the hull, a foot pedal assembly installed on the support frame, a power transmission assembly, and a belt drive structure corresponding to the propeller and installed in the cabin of the hull; the top of the propeller is connected to the drive belt ball joint of the corresponding belt drive structure.

[0009] The power transmission assembly includes a first mounting shaft, a second mounting shaft, and a third mounting shaft rotatably mounted inside the ship's cockpit, as well as a gear set; the second mounting shaft, the third mounting shaft, and the gear set are all configured with corresponding belt drive structures; the foot pedal assembly drives the first mounting shaft to rotate;

[0010] Each of the gear sets comprises an adjusting plate slidingly mounted on the support frame and slidingly and rotatably mounted on the second mounting frame, input gear one and input gear two coaxially fixedly mounted on the first mounting shaft, transition gear two coaxially fixedly mounted on the corresponding second mounting shaft and engaged with the input gear two, transition gear one rotatably mounted on the adjusting plate and intermittently engaged with the input gear one, transmission gear one coaxially fixedly mounted on the corresponding second mounting shaft, transmission gear two rotatably mounted in the cabin of the ship body and synchronously transmissionally connected with the transmission gear one, friction block one slidingly mounted on the corresponding third mounting shaft and rotatably connected with the adjusting plate, friction block two fixedly mounted on the transmission gear two, output gear coaxially fixedly mounted on the corresponding third mounting shaft and intermittently engaged with the transition gear one, and drive gear coaxially fixedly mounted on the corresponding belt transmission mechanism pulley and engaged with the output gear.

[0011] The supporting device comprises a mounting frame fixedly mounted on the bottom of the ship body, a supporting leg arranged on the mounting frame, and a roller mounted at the bottom end of the supporting leg.

[0012] Further, the foot pedal assembly comprises a toothed disc rotatably mounted on the support frame, a crank fixedly mounted on the toothed disc, a foot pedal mounted on the crank, and a flywheel coaxially fixedly mounted on the first mounting shaft and synchronously transmissionally connected with the toothed disc through a chain.

[0013] Further, a shock absorber is mounted on the supporting leg.

[0014] Further, an auxiliary training device is further included; the auxiliary training device comprises a limiting rod fixedly mounted on the ship body and slidingly mounted on the rod body, an adjusting sliding block slidingly mounted on the rod body, and an elastic rope connected between the limiting sliding block and the adjusting sliding block.

[0015] Further, the supporting device further comprises a bidirectional screw rod rotatably mounted on the mounting frame, a bottom plate, and a connecting plate rotatably mounted at the top end on a bidirectional screw rod nut and rotatably mounted at the bottom end on the bottom plate.

[0016] Further, a paddle holder is rotatably mounted at the bottom end of the oar; a clamping rod is slidingly and elastically mounted on the bottom end of the oar, a plurality of clamping grooves are arranged on the paddle holder corresponding to the clamping rod, a rope shaft is rotatably mounted on the paddle holder, and a rope hook is mounted on the rope end of the rope shaft.

[0017] A supporting rod is fixedly mounted on the paddle holder, and a shaft sleeve is slidingly and elastically mounted on the supporting rod; a spline is arranged on the rope shaft and matched with the shaft sleeve; and a carabiner is fixedly mounted on the bottom plate corresponding to the rope hook.

[0018] Further, the paddle frame is fixedly provided with an arc-shaped paddle, and a plurality of friction strips are slidably and elastically arranged on the bottom surface of the arc-shaped paddle.

[0019] Due to the above technical scheme, the present application has the following advantages:

[0020] 1. The present application realizes free forward movement, backward movement and precise turning in the motion control function through the cooperation of the power system and the paddle, completely changing the single mode of the traditional dry land dragon boat movement. The athlete can flexibly control the forward and backward movement of the dragon boat through the power system without manual assistance, greatly improving the operation autonomy.

[0021] 2. The present application can lift the hull in a narrow training site through the cooperation of the auxiliary training device and the lifting device, simulate the resistance of the paddle when it actually contacts the ground, and thus realize the training of foot-pedal propulsion without moving the hull, so that the athlete can deeply experience the mechanical properties of the paddle supporting the ground and accurately master the operation essentials of supporting the ground. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The present application is an overall structure diagram installed on the hull.

[0023] Figure 2 The present application is an assembly structure diagram of the power system, the paddle and the auxiliary training device.

[0024] Figure 3 The present application is an assembly structure diagram of the power system and the paddle.

[0025] Figure 4 The present application is a partial enlarged structure diagram of A in the present application. Figure 3

[0026] Figure 5 The present application is a structure diagram of the power system without support frame.

[0027] Figure 6 The present application is a partial structure diagram of the power system.

[0028] Figure 7 The present application is a partial structure diagram of the power system.

[0029] Figure 8 The present application is an assembly structure diagram of the paddle and the auxiliary training device.

[0030] Figure 9 The present application is a structure diagram of the auxiliary training device.

[0031] Figure 10 The present application is a structure diagram of the bottom end of the paddle. ​

[0032] Figure 11 Figure 1 is a schematic diagram of the assembly structure of the paddle blade holder, the arc-shaped paddle blade, the friction strip and the clamping rod of the present application.

[0033] Figure 12 Figure 2 is a schematic diagram of the assembly structure of the rope shaft, the shaft sleeve, the supporting rod and the rope hook of the present application.

[0034] Figure 13 Figure 3 is a schematic diagram of the structure of the supporting device of the present application.

[0035] Figure 14 Figure 4 is a schematic diagram of the partial structure of the supporting device of the present application.

[0036] Reference signs:

[0037] 1 - hull;

[0038] 2 - power system; 201 - supporting frame; 202 - toothed disc; 203 - crank; 204 - foot pedal; 205 - chain; 206 - flywheel; 207 - first mounting shaft; 208 - second mounting shaft; 209 - third mounting shaft; 210 - input gear one; 211 - input gear two; 212 - transition gear one; 213 - transition gear two; 214 - output gear; 215 - transmission gear one; 216 - transmission gear two; 217 - friction block one; 218 - friction block two; 219 - adjusting plate; 220 - driving gear; 221 - belt transmission mechanism;

[0039] 3 - paddle; 301 - paddle blade holder; 3011 - clamping groove; 302 - arc-shaped paddle blade; 303 - friction strip; 304 - clamping rod; 305 - rope shaft; 306 - shaft sleeve; 307 - supporting rod; 308 - rope hook;

[0040] 4 - auxiliary training device; 401 - limiting rod; 4011 - limiting sliding block; 402 - adjusting sliding block; 403 - elastic rope;

[0041] 5 - supporting device; 501 - mounting frame; 502 - bidirectional screw rod; 503 - connecting plate; 504 - bottom plate; 505 - carabiner; 506 - supporting leg; 507 - shock absorber; 508 - roller. DETAILED DESCRIPTION

[0042] The technical solutions of the present application are further specifically described below by examples in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application, but the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, therefore the present application is not limited by the specific examples disclosed below.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "in", "out", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] Embodiment:

[0045] The present embodiment provides a kind of dry land dragon boat pedal propulsion device, as shown in Figure 1 It includes power system 2, oar 3, auxiliary training device 4 and prop device 5 arranged on hull 1;Power system 2 is arranged in the cockpit of hull 1, and a pair of oar 3 is arranged on each group of power system 2, which is arranged on the side of hull 1, and the shaft of oar 3 is ball hinge installed on the side of hull 1;Prop device 5 is installed on the bottom plate of hull 1.

[0046] As shown in Figures 2-7 Power system 2 includes support frame 201, pedal assembly, power transmission assembly and belt drive structure 221;Support frame 201 is fixedly installed on hull 1, pedal assembly is arranged on support frame 201, and power transmission assembly provides power for belt drive structure 221;Belt drive structure 221 is arranged corresponding to oar 3, and is installed in the cockpit of hull 1, which is composed of transmission belt and belt wheel, the top end of oar 3 is ball hinge connected with the transmission belt corresponding to belt drive structure 221, and the movement of transmission belt will drive oar 3 to paddle, realizing the propulsion of dry land dragon boat;

[0047] Pedal assembly includes tooth disc 202, crank 203, pedal 204, chain 205 and flywheel 206;Tooth disc 202 is rotatably installed on support frame 201, two cranks 203 are fixedly installed on tooth disc 202, pedal 204 is installed on each crank 203, and tooth disc 202 and flywheel 206 are synchronously connected by chain 205, and power is transmitted from flywheel 206 to power transmission assembly;

[0048] Power transmission assembly includes a first mounting shaft 207, two second mounting shafts 208, two third mounting shafts 209 and two sets of gear sets corresponding to belt drive structure 221;Each set of gear set includes input gear one 210, input gear two 211, transition gear one 212, transition gear two 213, output gear 214, transmission gear one 215, transmission gear two 216, friction block one 217, friction block two 218, adjusting plate 219 and drive gear 220;

[0049] The first installation shaft 207 is rotatably installed in the cockpit of the hull 1, the flywheel 206 is coaxially fixedly installed at the center of the first installation shaft 207, and the input gear one 210 and the input gear two 211 of the two sets of gear groups are coaxially fixedly installed on the first installation shaft 207;

[0050] The second installation shaft 208 is rotatably installed in the cockpit of the hull 1, the transition gear two 213 is coaxially fixedly installed on the second installation shaft 208 and is in mesh with the input gear two 211 of the same gear group, the adjusting plate 219 is slidably and rotatably installed on the second installation shaft 208, the transition gear one 212 is rotatably installed on the adjusting plate 219 and can be driven by the adjusting plate 219 to slide on the second installation shaft 208 and intermittently mesh with the input gear one 210;

[0051] The transmission gear one 215 is coaxially fixedly installed on the second installation shaft 208, and the transmission gear two 216 is rotatably installed in the cockpit of the hull 1 and is in synchronous transmission connection with the transmission gear one 215 through a synchronous belt;

[0052] The third installation shaft 209 is rotatably installed in the cockpit of the hull 1, the friction block one 217 is slidably installed on the third installation shaft 209, and the friction block two 218 is fixedly installed on the transmission gear two 216; the friction block one 217 is rotatably connected with the adjusting plate 219 and can be driven by the adjusting plate 219 to slide on the third installation shaft 209 and intermittently abut against the friction block two 218;

[0053] The output gear 214 is coaxially fixedly installed on the third installation shaft 209 and is intermittently in mesh with the transition gear one 212, and the drive gear 220 is coaxially fixedly installed on the pulley of the belt transmission mechanism 221 and is in mesh with the output gear 214;

[0054] The adjusting plate 219 is slidably installed on the support frame 201, and by sliding the adjusting plate 219, the positions of the transition gear one 212 and the friction block one 217 are controlled to control the direction of the paddle 3, and the specific principle is as follows:

[0055] When the transition gear 212 meshes with the input gear 210 and the output gear 214 simultaneously, the friction block 217 disengages from the friction block 218 (there is no interaction between the transmission gear 216 and the third mounting shaft 209). The flywheel 206 drives the first mounting shaft 207 to rotate, the input gear 210 rotates accordingly and drives the transition gear 212 to rotate, the transition gear 212 drives the output gear 214 to rotate, and the output gear 214 drives the drive gear 220 to rotate, thereby providing power to the belt drive mechanism 221 and driving the oar 3 to paddle (for clarity, this paddle direction is taken as forward). It is worth noting that the input gear 211 rotates synchronously when the input gear 210 rotates, and drives the transition gear 213 to rotate. The transition gear 213 drives the transmission gear 215 to rotate, and the transmission gear 215 drives the transmission gear 216 to rotate. Since the transition gear 212 does not rotate with the second mounting shaft 208, the transition gear 212 will not be interfered with.

[0056] When the movable adjustment plate 219 moves, the transition gear 212 disengages from the input gear 210 and the output gear 214, the friction block 217 moves and finally comes into close contact with the friction block 218, the transmission gear 216 can drive the third mounting shaft 209 to rotate, thereby driving the output gear 214 to rotate, the output gear 214 drives the drive gear 220 to rotate, thereby providing power to the belt drive mechanism 221, driving the oar 3 to paddle, and the paddle direction at this time is backward;

[0057] When one side of the oar 3 moves forward and the other side moves backward, the hull 1 can turn.

[0058] like Figures 1-2 and Figures 8-9 As shown, the auxiliary training device 4 includes a limiting rod 401, an adjusting slider 402, and an elastic rope 403; each paddle 3 corresponds to two limiting rods 401, the limiting rods 401 are fixedly installed on the hull 1, and each limiting rod 401 is movably mounted with a limiting slider 4011; the adjusting slider 402 is slidably installed on the shaft of the paddle 3, and an elastic rope 402 is provided between the adjusting slider 402 and the limiting slider 4011;

[0059] A threaded rod is installed on the adjusting slider 402, and several limiting holes are provided on the body of the paddle 3 corresponding to the threaded rod of the adjusting slider 402, so as to facilitate the adjustment and fixation of the position of the adjusting slider 402;

[0060] The limiting rod 401 can be fixed to the limiting rod 401 by means of a pin connection, and the limiting rod 401 is provided with several pin holes;

[0061] Two ends of the elastic rope 402 are fixedly provided with connecting blocks which are fixed on the limiting sliding block 4011 or the adjusting sliding block 402 through pin connection, facilitating installation and dismounting.

[0062] As shown in Figure 1 and Figures 13-14 , the lifting device 5 comprises a mounting frame 501, a bidirectional screw rod 502, a connecting plate 503, a bottom plate 504, a supporting leg 506, a shock absorber 507 and a roller 508; the mounting frame 501 is fixedly installed at the bottom of the ship body 1, two supporting legs 506 are arranged on the mounting frame 501, the roller 508 is installed at the bottom end of each supporting leg 506, and the shock absorber 507 is installed on each supporting leg 506;

[0063] The bidirectional screw rod 502 is rotatably installed on the mounting frame 501, and the connecting plate 503 is rotatably installed on the nut at each end of the bidirectional screw rod 502; the two connecting plates 503 are rotatably installed at the bottom end of the same bottom plate 504; the bidirectional screw rod 502 can be driven to rotate by a motor, and can also be manually driven to rotate; Figure 13 As shown in

[0064] When the ship body 1 needs to be lifted, the bidirectional screw rod 502 is rotated to drive the two connecting plates 503 to move close to each other, the bottom plate 504 moves downward and contacts the ground, and the supporting leg 506 is lifted, so that the entire ship body 1 is lifted.

[0065] As shown in Figure 3 , Figure 8 and Figures 10-12 , the bottom end of the oar 3 is rotatably installed with an oar blade frame 301; the oar blade frame 301 is in the shape of L as a whole, and the two branches intermittently downward, an arc-shaped oar blade 302 is fixedly installed on one branch, and a rope shaft 305 is rotatably installed on the other branch; the oar blade frame 301 is provided with two clamping grooves 3011 corresponding to the two downward states of the branches, and a clamping rod 304 is elastically installed on the bottom end of the oar 3 by a compression spring and slides in the clamping grooves 3011, so that the oar blade frame 301 is fixed;

[0066] A plurality of friction strips 303 are elastically installed on the bottom surface of the arc-shaped oar blade 302 by a compression spring, so as to increase the friction between the oar 3 and the ground;

[0067] The paddle frame 301 is fixedly provided with a supporting rod 307, and the supporting rod 307 is slidably and elastically provided with a shaft sleeve 306 through a compression spring; the rope shaft 305 is provided with a spline matched with the shaft sleeve 306, when the shaft sleeve 306 is sleeved on the spline, the rope shaft 305 can no longer rotate, when the shaft sleeve 306 is actuated to be separated from the spline, the rope shaft 305 can freely rotate; the rope end of the rope shaft 305 is provided with a rope hook 308, as shown in Figure 13 the bottom plate 504 is fixedly provided with a shackle 505 corresponding to the rope hook 308 (the style of the rope hook 308 and the shackle 505 in the drawings is only for illustration).

[0068] As a specific embodiment of the present embodiment, as shown in Figure 1 the power system 2 and the matched paddle 3 and the auxiliary training device 4 can be provided with multiple groups, and the power system can be provided in the same direction or oppositely.

[0069] The present embodiment is used for the propulsion of the land dragon boat, when the training site is small, and the boat body 1 cannot be moved for a long distance, the boat body 1 can be lifted by the supporting device 5, the position of the limiting sliding block 4011 and the adjusting sliding block 402 is adjusted, and after the elastic rope 403 is installed, the elastic rope 403 can simulate the resistance of the paddle 3 when it actually contacts the ground, so that the training of the foot-pedal propulsion under the condition that the boat body 1 does not move can be realized; during the training, the paddle frame 301 can be rotated, the branch where the rope shaft 305 is located is downward, the rope of the rope shaft 305 is pulled out, the rope hook 308 is hung on the shackle 505, and the resistance is formed, so that the actual rowing condition of the paddle 3 is further simulated.

Claims

1. A dry land dragon boat foot propulsion device characterized by, The power system is arranged in the seat of the ship body, the pair of ship paddles are arranged on the ship body and connected with the power system and ball-joint mounted on the ship body, and the supporting device is arranged at the bottom of the ship body; The power system comprises a supporting frame fixedly mounted on the ship body, a pedal assembly mounted on the supporting frame, a power transmission assembly, and a belt transmission structure arranged in the seat of the ship body and corresponding to the ship paddle; the top end of the ship paddle is ball-joint connected with the transmission belt of the corresponding belt transmission structure; The power transmission assembly comprises a first mounting shaft, a second mounting shaft and a third mounting shaft rotatably mounted in the seat of the ship body, and a gear set; the second mounting shaft, the third mounting shaft and the gear set are arranged corresponding to the belt transmission structure; the pedal assembly drives the first mounting shaft to rotate; Each gear set comprises an adjusting plate slidably and rotatably mounted on the supporting frame and the second mounting frame, an input gear one and an input gear two coaxially fixedly mounted on the first mounting shaft, a transition gear two coaxially fixedly mounted on the corresponding second mounting shaft and meshing with the input gear two, a transition gear one rotatably mounted on the adjusting plate and intermittently meshing with the input gear one, a transmission gear one coaxially fixedly mounted on the corresponding second mounting shaft, a transmission gear two rotatably mounted in the seat of the ship body and synchronously transmission connected with the transmission gear one, a friction block one slidably mounted on the corresponding third mounting shaft and rotatably connected with the adjusting plate, a friction block two fixedly mounted on the transmission gear two, an output gear coaxially fixedly mounted on the corresponding third mounting shaft and intermittently meshing with the transition gear one, and a drive gear coaxially fixedly mounted on the corresponding belt wheel of the belt transmission structure and meshing with the output gear; The supporting device comprises a mounting frame fixedly mounted at the bottom of the ship body, a supporting leg arranged on the mounting frame, and a roller mounted at the bottom end of the supporting leg.

2. The device as claimed in claim 1, wherein, The pedal assembly comprises a toothed disc rotatably mounted on the supporting frame, a crank fixedly mounted on the toothed disc, a pedal plate mounted on the crank, and a flywheel coaxially fixedly mounted on the first mounting shaft and synchronously transmission connected with the toothed disc through a chain.

3. The device as claimed in claim 1, wherein, A shock absorber is mounted on the supporting leg.

4. The device according to any one of claims 1-3, wherein, An auxiliary training device is further included; the auxiliary training device comprises a limiting rod fixedly mounted on the ship body and having a limiting sliding block slidably mounted on the rod, an adjusting sliding block slidably mounted on the rod of the ship paddle, and an elastic rope connected between the limiting sliding block and the adjusting sliding block.

5. The device as claimed in claim 4, wherein, The supporting device further comprises a bidirectional screw rod rotatably mounted on the mounting frame, a bottom plate, and a connecting plate rotatably mounted on a bidirectional screw nut at the top end and rotatably mounted on the bottom plate at the bottom end.

6. The device as claimed in claim 5, wherein, A paddle frame is rotatably mounted at the bottom end of the ship paddle; a clamping rod is slidably and elastically mounted on the bottom end of the ship paddle, and a plurality of clamping grooves are arranged on the paddle frame corresponding to the clamping rod; a rope shaft is rotatably mounted on the paddle frame, and a rope hook is mounted on the rope end of the rope shaft; A supporting rod is fixedly mounted on the paddle frame, and a shaft sleeve is slidably and elastically mounted on the supporting rod; a spline is arranged on the rope shaft corresponding to the shaft sleeve; a carabiner is fixedly mounted on the bottom plate corresponding to the rope hook.

7. The device according to claim 6, wherein, An arc-shaped paddle is fixedly mounted on the paddle frame, and a plurality of friction strips are slidably and elastically mounted on the bottom surface of the arc-shaped paddle.

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