Novel pedal type lever machine

Abstract

The utility model provides a novel pedal type lever machine, which belongs to the technical field of lever devices and is characterized in that a lever comprises a driving rod and a driven rod, the driving rod is connected with the driven rod through a one-way rotating component, and the one-way rotating component comprises a rotating part and a limiting plate. The driving rod and the driven rod are rotatably connected through the rotating piece, the limiting plate is arranged at the bottom of the driving rod or the driven rod and located below the rotating piece, the flexible connecting piece comprises an elastic belt and hinge pieces arranged at the two ends of the elastic belt, and the hinge pieces are connected with the elastic belt. One group of hinging pieces is connected with the curved bar, and the other group of hinging pieces is connected with the pedal piece. Due to the fact that the deformable elastic belt is adopted, the inertia effect of the driving rod is counteracted through elastic deformation of the elastic belt, the inertia effect of the driving rod is prevented from directly acting on the rotating position of the bent lever, and abrasion of the rotating position of the bent lever is relieved.

Description

Technical Field

[0001] This utility model belongs to the field of lever device technology, and specifically relates to a novel foot-operated lever mechanism. Background Technology

[0002] With the rapid development of science and technology, people use electricity everywhere. Various power generation equipment is constantly being upgraded, and power generation methods have become more diversified, such as thermal power generation, hydropower generation, nuclear power generation, wind power generation, geothermal power generation, etc. With the changes of the times, low-carbon living has gradually been integrated into people's daily lives. How to use energy or devices with little impact on the environment to achieve power generation and other tasks has become a goal pursued by people.

[0003] For example, Chinese utility model patent application number CN202223254611.8 discloses a foot-operated lever mechanism, including a lever mechanism body and a foot pedal mechanism. The foot pedal mechanism is fixedly connected to the lever mechanism body. The movement of the foot pedal mechanism drives the lever mechanism body to move. The lever mechanism body includes a drive unit and a power unit. The drive unit is connected to the power unit and drives the power unit to rotate. The drive unit includes a main shaft, a bearing seat, a crank, a hinge, a lever, and a moving guide rail assembly. The foot pedal mechanism includes a crank rod, a flexible connector, a foot pedal, and a fixed seat. The worker steps on the foot pedal mechanism, using the strength of their thigh to drive the entire lever mechanism to move. The worker only needs to step on the foot pedal mechanism from top to bottom to drive the entire lever mechanism to move. Compared with the worker pushing the lever by hand to drive the lever mechanism, it can reduce the labor intensity of the worker.

[0004] In actual use, this foot-operated lever mechanism has a chain link that drives the chain link to move because the lever is a single unit. However, when the lever swings up and down, it causes the chain link and the crank to become tense when it swings to the highest point. Due to the inertia of the lever swinging upward, the crank is prone to wear. As the wear intensifies, the rotation distance of the crank increases. The crank rotation generates a lot of noise due to friction and collision, which affects the use of the machine. Utility Model Content

[0005] Based on this, the present invention provides a novel foot-operated lever mechanism to solve the technical problems existing in the prior art, where, during the up-and-down swinging process of the lever, when it swings upward to the highest point, it causes the chain link and the crank to tighten against each other, and due to the inertia of the lever swinging upward, the rotating position of the crank is prone to wear. As the wear intensifies, the rotation distance of the crank position increases, and the crank rotation generates a lot of noise due to friction and collision, which affects the operation of the user.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A novel foot-operated lever mechanism includes a lever body and a foot pedal mechanism. The lever body includes a drive unit and a power unit. The drive unit includes a main shaft, a bearing seat, a crank, a hinge, a lever, and a moving guide rail assembly. The foot pedal mechanism includes a crank rod, a flexible connector, a foot pedal, and a fixed base. The lever includes a driving rod and a driven rod. The driving rod and the driven rod are connected by a one-way rotation assembly. The one-way rotation assembly includes a rotating component and a limiting plate. The driving rod and the driven rod are rotatably connected by the rotating component. The limiting plate is disposed at the bottom of the driving rod or the driven rod and is located below the rotating component. The flexible connector includes an elastic belt and hinges disposed at both ends of the elastic belt. One set of hinges is connected to the crank rod, and the other set of hinges is connected to the foot pedal.

[0008] Preferably, the rotating component includes a rotating seat and a rotating rod. The rotating seat is disposed at one end of the driven rod. A first through hole is provided on the rotating seat. A second through hole is provided at one end of the driving rod. The rotating rod passes through the first through hole and the second through hole and is disposed on the rotating seat.

[0009] Preferably, the rotating rod is a screw, and nuts are fitted at both ends of the screw.

[0010] Preferably, the hinge includes a sleeve, a locking ring, and a locking rod. The sleeve is fitted onto the end of the elastic belt, the locking member is snapped onto the sleeve, and the locking rod passes through the locking ring and is detachably connected to the sleeve.

[0011] Preferably, the elastic belt is an elastic rubber belt.

[0012] Preferably, reinforcing strips are evenly distributed on the outer wall of the elastic belt.

[0013] Preferably, a rubber pad is provided on the outer surface of the limiting plate, and the rubber pad is located on the side near the bottom of the active rod.

[0014] Preferably, the limiting plate is provided with rounded corners, and the rounded corners are connected to the driving rod or the driven rod.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] Because of the use of the deformable elastic belt, the inertia of the upward movement of the drive rod is transferred to the elastic belt. The elastic deformation of the elastic belt counteracts the inertia of the drive rod, preventing the inertia of the drive rod from directly affecting the rotational position of the crank, thus slowing down the wear of the crank's rotational position. This not only extends the service life of the crank's rotational position but also reduces the loud noise generated by friction and collision at the crank's rotational position. Furthermore, previously, when chain links were used, they were in a slack state at their lowest point, causing them to collide and rub against each other, producing noise. With the elastic belt, when at its lowest point, it only undergoes elastic bending, preventing the chain links from colliding and rubbing against each other and generating noise. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of a novel foot-operated lever mechanism.

[0018] Figure 2 This is a front view (first state) of a novel foot-operated lever machine.

[0019] Figure 3 This is a front view (second state) of a novel foot-operated lever machine.

[0020] Figure 4 for Figure 1 -A magnified view of a specific area.

[0021] Figure 5 for Figure 1 -B is a magnified view of a specific area.

[0022] In the diagram: foot pedal mechanism 100, crank rod 110, foot pedal component 120, fixed seat 130, lever 200, driving rod 210, driven rod 220, one-way rotation assembly 230, rotating component 231, rotating seat 2311, rotating rod 2312, limiting plate 232, rubber pad 2321, rounded corner 2322, flexible connector 300, elastic belt 310, reinforcing strip 311, hinge 320, sleeve 321, locking ring 322, locking rod 323. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0024] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] Please refer to Figures 1 to 5 A novel foot-operated lever mechanism includes a lever 200 body and a foot pedal mechanism 100. The lever 200 body includes a drive unit and a power unit. The drive unit includes a main shaft, a bearing seat, a crank, a hinge, a lever 200, and a moving guide rail assembly. The foot pedal mechanism 100 includes a crank 110, a flexible connector 300, a foot pedal 120, and a fixed base 130. The lever 200 includes a driving rod 210 and a driven rod 220, which are connected by a one-way rotation assembly 230. Component 230 includes a rotating component 231 and a limiting plate 232. The driving rod 210 and the driven rod 220 are rotatably connected through the rotating component 231. The limiting plate 232 is disposed at the bottom of the driving rod 210 or the driven rod 220, and the limiting plate 232 is located below the rotating component 231. The flexible connector 300 includes an elastic belt 310 and hinges 320 disposed at both ends of the elastic belt 310. One set of hinges 320 is connected to the crank rod 110, and the other set of hinges 320 is connected to the foot pedal 120.

[0026] The unidirectional rotation assembly 230 includes a rotating component 231 and a limiting plate 232. When the driving rod 210 and the driven rod 220 are connected through the rotating component 231, the driving rod 210 can rotate freely up and down around one end of the driven rod 220. When the limiting plate 232 is provided at the bottom of the driving rod 210 or the driven rod 220, specifically, the limiting plate 232 is provided at the bottom of the driving rod 210, and the limiting plate 232 is connected to the driving rod 210 by welding to enhance the connection. Connection strength; when the driving rod 210 rotates upward around the driven rod 220, the limiting plate 232 does not have a limiting function, and the driving rod 210 can rotate upward relative to the driven rod 220. When the driving rod 210 rotates downward around the driven rod 220, the limiting plate 232 will fit against the bottom of the driven rod 220, playing a limiting role. Then, the driving rod 210 synchronously drives the driven rod 220 to rotate downward, thereby realizing unidirectional rotation between the driving rod 210 and the driven rod 220.

[0027] Specifically, to facilitate the fitting of the limiting plate 232 to the bottom of the driven rod 220, the driven rod 220 is made of square tubing.

[0028] The movement process is as follows:

[0029] The motion process of this novel foot-operated lever mechanism is the same as that of a foot-operated lever mechanism with application number CN202223254611.8, both having a first motion state and a second motion state. For details, please refer to the motion process of a foot-operated lever mechanism 200; (specifically, in the first state: see...) Figure 2 When the lever 200 is rotated to its highest position, the foot pedal mechanism 100 is in the following motion state: Figure 2 As shown, since the lever 200 is tilted downwards, one end of the crank 110 connected to the lever 200 is also tilted forwards and downwards. Under the drive of the crank 110, the flexible connector 300 is taut. Under the drive of the flexible connector 300, the foot pedal 120430 is tilted forwards and upwards. When the worker steps on the foot pedal 120, the foot pedal 120 rotates in the direction of forwards and downwards. After the foot pedal 120 rotates, it drives the flexible connector 300 to move. The movement of the flexible connector 300 drives the crank 110 to rotate. The movement of the crank 110 drives the lever 200 to move on the moving guide rail assembly. The movement of the lever 200 drives the crank to rotate. The rotation of the crank drives the main shaft to rotate. The rotation of the main shaft drives the power unit to rotate.

[0030] In the second state: see Figure 3 When the lever 200 is rotated to its lowest position, the foot pedal mechanism 100 is in the following motion state: Figure 3 As shown, since the lever 200 is tilted upwards, one end of the crank 110 connected to the lever 200 is also tilted forward and upwards. Under the influence of the crank 110, the flexible connector 300 is in a relaxed state. Under the influence of the flexible connector 300, the foot pedal 120 tilts forward and upwards. At this time, the foot pedal 120 cannot rise. This foot pedal mechanism 100 is defined as the first foot pedal mechanism 100. It needs to move through another foot pedal mechanism connected to the main shaft. This other foot pedal mechanism 100 is defined as the second foot pedal mechanism 100. The second foot pedal mechanism 100 is in the first state. Stepping on the second foot pedal mechanism 100 causes the foot pedal 120 to move forward and downwards. The movement of the second foot pedal mechanism 100 drives the first foot pedal mechanism 100 to move backward and upwards. The movement trajectory of the first foot pedal mechanism 100 is exactly opposite to that of the second foot pedal mechanism.

[0031] In the first state of motion, see Figure 1 and Figure 4 Since the lever 200 is divided into two sections, namely the driving rod 210 and the driven rod 220, and connected by the one-way rotation assembly 230, when the lever 200 moves to its highest point, the driving rod 210 will continue to rotate upward under inertia. The limiting plate 232 separates from the bottom of the driven rod 220. Since the elastic belt 310 is elastic and can be stretched, the driving rod 210 will stretch the elastic belt 310 through the crank rod 110, producing a slight elastic deformation. At this time, the driving rod 210 rotates around the driven rod 220 through the rotating member 231. When the rotational inertia of the driving rod 210 is offset by the traction force of the elastic belt 310, the elastic belt... 310 restores its initial shape and pulls the active rod 210 downward to rotate, causing the limiting plate 232 to fit against the bottom of the driven rod 220. In the second movement state, when a person steps on the foot pedal mechanism 100, the active rod 210 moves downward. Since the limiting plate 232 limits the driven rod 220, the driven rod 220 rotates downward synchronously with the active rod 210, achieving integrated rotation. When the movement reaches the lowest point, because a chain link was previously used, the chain link is in a loose state and will collide and rub against each other, producing noise. However, with the elastic belt 310, when the elastic belt 310 is at the lowest point, it will only produce elastic bending, avoiding the collision and friction between the chain links and the production of noise.

[0032] Because of the use of the deformable elastic belt 310, the inertia of the upward movement of the drive rod 210 is transferred to the elastic belt 310. The elastic deformation of the elastic belt 310 counteracts the inertia of the drive rod 210, preventing the inertia of the drive rod 210 from directly affecting the rotational position of the crank rod 110. This reduces wear on the rotational position of the crank rod 110, extending its service life and reducing the loud noise generated by friction and collision. Furthermore, previously, when chain links were used, they were in a slack state at their lowest point, causing them to collide and rub against each other, generating noise. With the elastic belt 310, when at its lowest point, it only undergoes elastic bending, preventing the chain links from colliding and rubbing against each other and generating noise.

[0033] Further, see Figure 4 The rotating component 231 includes a rotating seat 2311 and a rotating rod 2312. The rotating seat 2311 is disposed at one end of the driven rod 220. A first through hole is formed on the rotating seat 2311, and a second through hole is formed at one end of the driving rod 210. The rotating rod 2312 passes through the first through hole and the second through hole and is disposed on the rotating seat 2311. When the driving rod 210 is sleeved on the rotating rod 2312, the driving rod 210 can rotate around the rotating rod 2312. Through the mutual cooperation between the rotating seat 2311 and the rotating rod 2312, the relative rotation between the driving rod 210 and the driven rod 220 is realized.

[0034] Furthermore, the rotating rod 2312 is a screw, with nuts fitted at both ends. The screw passes through the first and second through holes, and is then fixed to the rotating seat 2311 by the nuts. This method is simple and convenient to use, and easy to disassemble.

[0035] For further description, see Figure 5 The hinge 320 includes a sleeve 321, a locking ring 322, and a locking rod 323. The sleeve 321 is fitted onto the end of the elastic belt 310, and the locking member is snapped onto the sleeve 321. The locking rod 323 passes through the locking ring 322 and is detachably connected to the sleeve 321. The sleeve 321 is fixed to both ends of the elastic belt 310 to prevent the sleeve 321 from being pulled apart from the elastic belt 310. Specifically, the sleeve 321 and the elastic belt 310 can be fixed together by pins. The locking ring 322 is fitted onto the crank 110 and can rotate relative to the crank 110. The detachable connection between the locking rod 323 and the sleeve 321 can be a stud connection or a pin connection.

[0036] Furthermore, the elastic belt 310 is an elastic rubber belt. This elastic rubber belt is made of high-strength rubber, such as tractor drive belts or agricultural vehicle drive belts, to prevent the elastic belt 310 from breaking during stretching.

[0037] Furthermore, reinforcing strips 311 are uniformly arranged on the outer wall of the elastic belt 310. The reinforcing strips 311 are provided to enhance the tensile strength of the elastic belt 310.

[0038] Specifically, the flexible connector 300 is provided in two sets to enhance its tensile strength.

[0039] Further, see Figure 5 To prevent the limiting plate 232 and the driven rod 220 from colliding and generating noise during contact, a rubber pad 2321 is provided on the outer surface of the limiting plate 232, located near the bottom of the driving rod 210. The rubber pad 2321 significantly reduces the collision noise between the limiting plate 232 and the driven rod 220.

[0040] Furthermore, the limiting plate 232 is provided with a rounded corner 2322, which is connected to the driving rod 210 or the driven rod 220. Specifically, the rounded corner 2322 is connected to the driving rod 210. By providing a rounded corner 2322 at the edge where the limiting plate 232 and the driving rod 210 meet, the connection strength between the limiting plate 232 and the driving rod 210 can be enhanced, preventing cracking between the limiting plate 232 and the driving rod 210.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel foot-operated lever mechanism, comprising a lever mechanism body and a foot pedal mechanism, wherein the lever mechanism body includes a drive unit and a power unit, the drive unit includes a lever, and the foot pedal mechanism includes a crank rod, a flexible connector, a foot pedal, and a fixed base, characterized in that, The lever includes a driving rod and a driven rod, which are connected by a one-way rotation assembly. The one-way rotation assembly includes a rotating component and a limiting plate. The driving rod and the driven rod are rotatably connected by the rotating component. The limiting plate is disposed at the bottom of the driving rod or the driven rod and is located below the rotating component. The flexible connector includes an elastic belt and hinges disposed at both ends of the elastic belt. One set of hinges is connected to the crank rod, and the other set of hinges is connected to the foot pedal.

2. The novel foot-operated lever mechanism as described in claim 1, characterized in that, The rotating component includes a rotating seat and a rotating rod. The rotating seat is disposed at one end of the driven rod. A first through hole is provided on the rotating seat. A second through hole is provided at one end of the driving rod. The rotating rod passes through the first through hole and the second through hole and is disposed on the rotating seat.

3. A novel foot-operated lever mechanism as described in claim 2, characterized in that, The rotating rod is a screw, and nuts are fitted at both ends of the screw.

4. A novel foot-operated lever mechanism as described in claim 1, characterized in that, The hinge includes a sleeve, a locking ring, and a locking rod. The sleeve is fitted onto the end of the elastic belt, the locking rod is snapped onto the sleeve, and the locking rod passes through the locking ring and is detachably connected to the sleeve.

5. A novel foot-operated lever mechanism as described in claim 1, characterized in that, The elastic belt is an elastic rubber belt.

6. A novel foot-operated lever mechanism as described in claim 5, characterized in that, Reinforcing strips are evenly distributed on the outer wall of the elastic belt.

7. A novel foot-operated lever mechanism as described in claim 1, characterized in that, A rubber pad is provided on the outer surface of the limiting plate, and the rubber pad is located on the side near the bottom of the active rod.

8. A novel foot-operated lever mechanism as described in claim 7, characterized in that, The limiting plate is provided with rounded corners, which are connected to the driving rod or the driven rod.

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