Pedal device with paddling function

Abstract

The invention belongs to the technical field of paddling equipment, and provides a pedal device with a paddling function. The pedal mechanism is provided with a paddling piece; the paddle and the return spring are rotatably arranged on the base mechanism, the bottom face of the base mechanism is matched with the extending end of the return spring in an abutting mode, and the other part of the return spring extends in the same direction as the swinging direction of the paddle. Compared with the prior art, linkage between the pedal mechanism, the paddling piece and the like is arranged, the structure can be used only by installing the first plug pin, the pedal paddle, the fixed hole and the movable hole in a matched mode, and the structure is simple and convenient; the pedal paddling device has a paddling function, saves more components, can greatly simplify the pedal paddling device, reduces the manufacturing cost, and is beneficial to popularization and application of products.

Description

Technical Field

[0001] The invention belongs to the technical field of paddling equipment, and in particular relates to a pedal device with a paddling function. Background Art

[0002] At present, in the prior art, there are two types of water manpower pedal propellers known to the public: one is a propeller type, and the other is a paddle wheel type. The propeller can only show its thrust advantage when it is running at a high speed.

[0003] For example, a Chinese utility model patent discloses a rowing device and a boat including the rowing device, with the publication number CN203345189U and specifically discloses that “the rowing device comprises: a base; an intermediate rod, which is centrally mounted on the base through an intermediate pivot and has a first rod segment and a second rod segment; a first connecting rod, one end of which is pivotally connected to the end of the first rod segment; a second connecting rod, an outer end of which is pivotally connected to the other end of the first connecting rod, and an inner end of which is mounted on the base through a first pivot, and the base, the first rod segment, the first connecting rod, and the second connecting rod define a first four-bar linkage mechanism. The invention relates to a paddle mechanism comprising a first connecting rod and a second connecting rod, wherein the first connecting rod is a connecting rod with a third connecting rod, and the second connecting rod is a connecting rod with a fourth connecting rod. The first connecting rod comprises a connecting rod with a third connecting rod, and the second connecting rod comprises a connecting rod with a fourth connecting rod. The connecting rod comprises a connecting rod with a third connecting rod, and a connecting rod with a fourth connecting rod. The connecting rod comprises a connecting rod with a third connecting rod, and a connecting rod with a fourth connecting rod. The connecting rod comprises a connecting rod with a third connecting rod, and a connecting rod with a third ...

[0004] To this end, the present invention provides a pedal device with a paddling function. Summary of the invention

[0005] In view of the above problems existing in the prior art, an object of the present invention is to provide a pedal device with a paddling function to solve at least one technical problem raised by the background technology.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A pedal device with a paddling function, comprising an air bag;

[0008] A pedal mechanism and a base mechanism with a paddling member; the paddling member includes a paddle and a return spring rotatably arranged on the base mechanism, the bottom surface of the base mechanism abuts against the extended end of the return spring, and the other part of the return spring extends in the same direction as the swinging direction of the paddle.

[0009] As a preferred technical solution of the present invention, the base mechanism includes ears with fixing holes, the paddle includes a pedal paddle and a first latch, the pedal paddle includes a foot pedal, a column and a paddle plate extending from the column away from the foot pedal, and the column is provided with a movable hole;

[0010] The end of the first latch is inserted into the movable hole from the fixing hole of the ear. When the foot pedal is stepped on, the pedal paddle can be movably arranged on the ear, so that the paddle plate of the pedal paddle can achieve paddling and drive the airbag to move in the forward direction.

[0011] As a preferred technical solution of the present invention, it also includes a rotating mechanism, which includes an inner shaft that can rotate along the circumferential direction, an outer shaft that can rotate along the circumferential direction, and at least two connecting members, the outer shaft is rotatably sleeved on the outer side wall of the inner shaft, one end of one of the connecting members is assembled at the side end of the inner shaft, and one end of the other connecting member is assembled at the other side end of the inner shaft, and the other ends of the two connecting members extend upward along the top side wall of the outer shaft;

[0012] One end of the paddle is sleeved on the side wall of the outer shaft, and the other end extends in a direction opposite to the pedal mechanism and the end of the paddle is in contact with water. A portion of the return spring is sleeved on the side wall of the outer shaft at the front and rear sides of the paddle, and another portion of the return spring extends in the same direction as the swing direction of the paddle.

[0013] A base mechanism, the two ends of which are detachably arranged between the two connecting members; the pedal mechanism comprises a first plate arm, a foot pedal and a second plate arm, the first plate arm is symmetrically arranged with the second plate arm along the radial center line of the outer shaft, one end of the first plate arm is rotatably sleeved on the front side wall of the outer shaft, the other end of the first plate arm is fixed to one end of the foot pedal, one end of the second plate arm is rotatably sleeved on the rear side wall of the outer shaft, and the other end of the second plate arm is fixed to the other end of the foot pedal;

[0014] When the operator steps on the foot pedal, the outer shaft can be driven to rotate circumferentially around the inner shaft, thereby enabling the paddle blades to swing and paddle.

[0015] As a preferred technical solution of the present invention, the first plate arm and the second plate arm are both in the shape of a wedge-shaped plate;

[0016] The area of ​​the first plate arm sleeved on the side wall of the outer shaft gradually decreases toward the direction approaching the foot pedal, and the area of ​​the second plate arm sleeved on the side wall of the outer shaft gradually decreases toward the direction approaching the foot pedal.

[0017] As a preferred technical solution of the present invention, the projection areas of the first plate arm and the second plate arm toward the side plane are triangular-like surfaces with arcs at both ends.

[0018] As a preferred technical solution of the present invention, the base mechanism comprises a base plate and at least two base ears, and the base plate is arranged on the top plane of two base ears arranged at intervals;

[0019] The two base ear pieces are respectively connected to the corresponding connecting pieces through a detachable structure, and the detachable structure includes a second pin. A first plug hole is provided on each of the two connecting pieces, and second plug holes are provided on both the front and rear end surfaces of the base ear piece. The second pin passes through the first plug hole and is inserted and fixed in the second plug hole, so that the front and rear ends of the base ear piece are fixed to the corresponding connecting pieces by insertion.

[0020] As a preferred technical solution of the present invention, the base plate is a rectangular or square flat plate.

[0021] As a preferred technical solution of the present invention, the return spring is a plate made of elastic material;

[0022] The return spring includes a spring winding portion and a spring extension portion, the spring winding portion is wound and fixed on the side wall of the outer shaft located on the front and rear sides of the blade, the spring extension portion is abutted and matched with the lower surface of the base mechanism, and the bent end of the spring extension portion is in swinging contact with the blade.

[0023] As a preferred technical solution of the present invention, the paddle blade includes a paddle connection portion and a paddle fan plate portion extending from the end of the paddle connection portion toward a direction away from the outer axis, and the paddle blade is an integral piece made of light corrosion-resistant plastic; the paddle fan plate portion is used for contacting and cooperating with water;

[0024] The surface of the propeller plate is provided with a plurality of long strip-shaped recessed grooves.

[0025] As a preferred technical solution of the present invention, the number of the sinking grooves is three;

[0026] The three recessed grooves extend outward from the end close to the side wall of the outer shaft toward the direction away from the outer shaft, and there is a distance between the end portions of the three recessed grooves away from the outer shaft and the end surface wall of the propeller plate portion.

[0027] As described above, the pedal device with paddling function according to the present invention has the following beneficial effects:

[0028] After utilizing the above-mentioned foot pedal device with paddling function, compared with the prior art, the present invention sets a linkage between the foot pedal mechanism and the paddling part, and when the user steps on or releases the foot pedal (foot pedal mechanism), the paddle blade can achieve repeated up and down swinging motion, thereby making the device applied for by the present invention have a paddling function. The entire device omits the complex structure composed of more components used in the prior art, such as the first connecting rod, the second connecting rod, etc., which can greatly simplify the foot-operated paddling device, reduce manufacturing costs, and is conducive to the promotion and application of the product.

[0029] The present invention will be further described below in conjunction with specific implementation modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The foot pedal device with paddling function applied for by the present invention is a structural schematic diagram of embodiment 1 after being assembled;

[0031] Figure 2 This is a schematic diagram of the structure of the pedal paddle in Example 1 of the present invention;

[0032] Figure 3 The foot pedal device with paddling function applied for by the present invention is a side view of Embodiment 2 from a first perspective after being assembled;

[0033] Figure 4 This is a partial structural diagram of Example 2 of the present invention;

[0034] Figure 5 This is a schematic diagram of the partial structure of the base plate in Example 2 of the present invention.

[0035] Rotating mechanism 1A;

[0036] Inner shaft 1;

[0037] External axis 2;

[0038] Connecting member 3; first plug hole 30;

[0039] Pedal mechanism 4B; first plate arm 40; foot pedal 41; second plate arm 42; foot paddle 43, first latch 44; foot pedal 430; column 431; paddle plate 432; movable hole 433;

[0040] Paddling 5C;

[0041] Paddle 5;

[0042] Paddle connecting portion 50; paddle fan plate portion 51; sinking groove portion 510;

[0043] Return spring 6;

[0044] Spring winding portion 60; Spring extension portion 61;

[0045] Base mechanism 7D;

[0046] Base plate 70; base ear piece 71; ear 72; fixing hole 720;

[0047] Second latch 8; airbag 9. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may include the first feature being directly below and obliquely below the second feature, or may simply mean that the first feature is

[0052] One feature has a smaller horizontal height than a second feature.

[0053] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0054] The present invention provides a pedal device with a paddling function, please refer to Figure 1 ,to Figure 5 As shown, the pedal device with paddling function includes an air bag 9; and also includes

[0055] A pedal mechanism 4B and a base mechanism 7D having a paddling member 5C; the paddling member 5C includes a paddle 5 and a return spring 6 rotatably arranged on the base mechanism 7D, the bottom surface of the base mechanism 7D abuts against the extended end of the return spring 6, and the other part of the return spring 6 extends in the same direction as the swinging direction of the paddle 5.

[0056] The present invention application has many embodiments, and two preferred specific embodiments are provided here, but are not limited thereto. The specific structure is shown below.

[0057] Example 1

[0058] Please combine Figure 1 and Figure 2 As shown, the base mechanism 7D includes an ear 72 with a fixing hole 720, the pedal mechanism 4B includes a pedal paddle 43 and a first latch 44, the pedal paddle 43 includes a foot pedal 430, a column 431 and a paddle plate 433 extending from the column away from the foot pedal 430, and the column is provided with a movable hole 433;

[0059] The end of the first pin is inserted into the movable hole 433 from the fixing hole 720 of the ear 72. When the foot pedal 430 is stepped on, the pedal paddle 43 can be movably arranged on the ear 72, so that the paddle plate 433 of the pedal paddle 43 can achieve paddling and drive the airbag 9 to move in the forward direction.

[0060] When using, combine Figure 1 and Figure 2 As shown, the operator only needs to step on the foot pedal 430, and through the above-mentioned structure, paddling can be achieved to drive the airbag 9 to move in the forward direction. The structure of the above-mentioned embodiment 1 only needs a first pin, a pedal paddle, a fixing hole and a movable hole to be installed together for use, which is simple and convenient.

[0061] Example 2

[0062] In this embodiment, a rotating mechanism 1A is also included, which includes an inner shaft 1 that can rotate along the circumferential direction, an outer shaft 2 that can rotate along the circumferential direction, and at least two connecting members 3, wherein the outer shaft 2 is rotatably sleeved on the outer side wall of the inner shaft 1, wherein one end of one of the connecting members 3 is assembled at the side end of the inner shaft 1, and one end of the other connecting member 3 is assembled at the other side end of the inner shaft 1, and the other ends of the two connecting members 3 both extend upward along the top side wall direction of the outer shaft 2;

[0063] One end of the paddle 5 is sleeved on the side wall of the outer shaft 2, and the other end extends in the direction opposite to the pedal mechanism 4B, and the end of the paddle 5 is in contact with water. A part of the return spring 6 is sleeved on the side wall of the outer shaft 2 at the front and rear sides of the paddle 5, and the other part of the return spring 6 extends in the same direction as the swing direction of the paddle 5.

[0064] The base mechanism 7D has two ends detachably disposed between the two connecting members 3 .

[0065] The pedal mechanism 4B is specifically: Figures 3 to 5 As shown, the pedal mechanism 4B includes a first plate arm 40, a foot pedal 41 and a second plate arm 42, wherein the first plate arm 40 is symmetrically arranged with the second plate arm 42 along the radial center line of the outer shaft 2, one end of the first plate arm 40 is rotatably sleeved on the front side wall of the outer shaft 2, the other end of the first plate arm 40 is fixed to one end of the foot pedal 42, one end of the second plate arm 42 is rotatably sleeved on the rear side wall of the outer shaft 2, and the other end of the second plate arm 42 is fixed to the other end of the foot pedal 41;

[0066] When the operator steps on the foot pedal 41 , the outer shaft 2 can be driven to rotate circumferentially around the inner shaft 1 , thereby enabling the paddle blades 5 to swing and paddle.

[0067] When using, combine Figures 3 to 5 As shown, the user (or operator) steps on the foot pedal (pedal mechanism 4B) of the present invention with his or her foot. Since the foot pedal mechanism 4B is arranged at both ends of the front and rear side walls of the outer shaft 2, the outer shaft 2 is driven to rotate in the circumferential direction with the inner shaft 1 as the rotation center. At the same time, since the paddle 5 of the paddling member 5C is arranged in the opposite direction to the direction of the foot pedal mechanism 4B, and one end of the paddle 5 is sleeved on the side wall of the outer shaft 2, the paddle 5 can also be driven to swing in the direction opposite to the pedaling direction. After the user releases the foot, the paddle 5 can return to the original position under the action of the return spring 6. In this way, when the user steps on or releases the foot pedal (pedal mechanism 4B), the paddle 5 can achieve repeated up and down swinging motion, so that the device of the present invention has a paddling function. The entire device omits the complex structure composed of more components used in the prior art, such as the first connecting rod, the second connecting rod, etc., which can greatly simplify the foot-operated paddling device, reduce the manufacturing cost, and is conducive to the promotion and application of the product.

[0068] Combination Figure 3 and Figure 4 As shown, in this embodiment, the first plate arm 40 and the second plate arm 42 are both wedge-shaped;

[0069] The area of ​​the first plate arm 40 sleeved on the side wall of the outer shaft 2 gradually decreases toward the foot pedal 41, and the area of ​​the second plate arm 42 sleeved on the side wall of the outer shaft 2 gradually decreases toward the foot pedal 41. With the first plate arm 40 and the second plate arm 42 of the aforementioned structure, the user can achieve the paddling effect by applying less force during operation, so that the user's operation is labor-saving and worry-free.

[0070] In this embodiment, the projection areas of the first plate arm 40 and the second plate arm 42 toward the side plane are triangular-like surfaces with arcs at both ends.

[0071] In this embodiment, the base mechanism 7D is specifically: combined with Figure 3 , Figure 4 as well as Figure 5 As shown, the base mechanism 7D includes a base plate 70 and at least two base ear pieces 71, and the base plate 70 is arranged on the top plane of two base ear pieces 71 arranged at intervals;

[0072] The two base ear pieces 71 are respectively connected to the corresponding connecting members 3 through a detachable structure, and the detachable structure includes a second pin 8. A first plug hole 30 is provided on each of the two connecting members 3. Second plug holes are provided on both the front and rear end surfaces of the base ear piece 71 (not shown in the figure, the same applies below). The second pin 8 passes through the first plug hole 30 and is inserted into the second plug hole, so that the front and rear ends of the base ear piece 71 are fixed to the corresponding connecting member 3 by insertion.

[0073] In this embodiment, the base plate 70 is a rectangular or square planar plate.

[0074] Combination Figure 3 As shown, in this embodiment, the return spring 6 is a plate made of elastic material;

[0075] The return spring 6 includes a spring winding portion 60 and a spring extension portion 61. The spring winding portion 60 is wound and fixed on the side wall of the outer shaft 2 located on the front and rear sides of the blade 5. The spring extension portion 61 is abutted and matched with the lower surface of the base mechanism 7D, and the bent end of the spring extension portion 61 is in swinging contact with the blade 5.

[0076] Combination Figure 3 and Figure 4 As shown, in this embodiment, the paddle 5 includes a paddle connection portion 50 and a paddle fan plate portion 51 extending from the end of the paddle connection portion 50 toward a direction away from the outer axis, and the paddle 5 is an integral piece made of light corrosion-resistant plastic; the paddle fan plate portion 51 is used for contacting with water;

[0077] The surface of the paddle fan plate 51 is provided with a plurality of long grooves 510. The above-mentioned grooves 510 can increase the contact area between the paddle and the water during the contact between the paddle and the water, so as to facilitate the paddle to slide forward and be convenient to use.

[0078] Combination Figures 3 to 5 As shown, in this embodiment, there are three sinking grooves 510;

[0079] The three recessed grooves 510 extend outward from the end close to the side wall of the outer shaft toward the direction away from the outer shaft 2, and the ends of the three recessed grooves 510 away from the outer shaft are spaced from the end wall of the paddle fan plate 51. It should be noted that the number of the aforementioned recessed grooves 510 can also be designed to be other suitable ones, and no excessive restrictions are made here, and the direction of the recessed grooves 510 can also be designed to be the same as the arc direction of the paddle fan plate 51.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0081] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A pedal device with a paddling function, comprising an air bag (9); characterized in that: Also includes A pedal mechanism (4B) and a base mechanism (7D) having a paddling member (5C); the paddling member (5C) comprises a paddle (5) and a return spring (6) rotatably arranged on the base mechanism (7D); the bottom surface of the base mechanism (7D) is abutted against an extended end of the return spring (6); another part of the return spring (6) extends in the same direction as the swinging direction of the paddle (5).

2. A pedal device with paddling function as claimed in claim 1, characterized in that: The base mechanism (7D) includes an ear (72) with a fixing hole (720), the paddle (5) includes a pedal paddle (43) and a first latch (44), the pedal paddle (43) includes a foot pedal (430), a column (431) and a paddle plate (432) extending from the column away from the foot pedal (430), and the column is provided with a movable hole (433); The end of the first latch is inserted into the movable hole (433) from the fixing hole (720) of the ear (72). When the foot pedal (430) is stepped on, the pedal paddle (43) is movably arranged on the ear (72), so that the paddle plate (432) of the pedal paddle (43) can achieve paddling and drive the airbag (9) to move in the forward direction.

3. A pedal device with paddling function as claimed in claim 1, characterized in that: It also comprises a rotating mechanism (1A), which comprises an inner shaft (1) rotatable in a circumferential direction, an outer shaft (2) rotatable in a circumferential direction, and at least two connecting members (3), wherein the outer shaft (2) is rotatably sleeved on the outer side wall of the inner shaft (1), wherein one end of one of the connecting members (3) is assembled at a side end of the inner shaft (1), and one end of the other connecting member (3) is assembled at the other side end of the inner shaft (1), and the other ends of the two connecting members (3) both extend upward along the top side wall direction of the outer shaft (2); One end of the paddle (5) is sleeved on the side wall of the outer shaft (2), and the other end extends in a direction opposite to the pedal mechanism (4B) and the end of the paddle (5) is in contact with water; a portion of the return spring (6) is sleeved on the side wall of the outer shaft (2) at the front and rear sides of the paddle (5), and another portion of the return spring (6) extends in the same direction as the swing direction of the paddle (5); A base mechanism (7D), the two ends of which are detachably arranged between the two connecting members (3); the pedal mechanism (4B) comprises a first plate arm (40), a foot pedal (41) and a second plate arm (42), the first plate arm (40) being symmetrically arranged with the second plate arm (42) along the radial center line of the outer shaft (2), one end of the first plate arm (40) being rotatably sleeved on the front side wall of the outer shaft (2), the other end of the first plate arm (40) being fixed to one end of the foot pedal (41), one end of the second plate arm (42) being rotatably sleeved on the rear side wall of the outer shaft (2), the other end of the second plate arm (42) being fixed to the other end of the foot pedal (41); When an operator steps on the foot pedal (41), the outer shaft (2) can be driven to rotate in a circumferential direction around the inner shaft (1), thereby enabling the paddle blade (5) to swing and paddle.

4. A pedal device with paddling function as claimed in claim 3, characterized in that: The first plate arm (40) and the second plate arm (42) are both in the shape of wedge-shaped plates; The area of ​​the first plate arm (40) sleeved on the side wall of the outer shaft (2) gradually decreases towards the direction approaching the foot pedal (41), and the area of ​​the second plate arm (42) sleeved on the side wall of the outer shaft (2) gradually decreases towards the direction approaching the foot pedal (41).

5. A pedal device with paddling function as claimed in claim 4, characterized in that: The projection areas of the first plate arm (40) and the second plate arm (42) in the direction of the side plane are respectively triangular-shaped surfaces with arcs at both ends.

6. A pedal device with paddling function as claimed in any one of claims 3 to 5, characterized in that: The base mechanism (7D) comprises a base plate (70) and at least two base ear pieces (71), wherein the base plate (70) is arranged on the top plane of two base ear pieces (71) arranged at intervals; The two base ear pieces (71) are respectively connected to the corresponding connecting piece (3) through a detachable structure, the detachable structure comprising a second plug pin (8), the two connecting pieces (3) are both provided with a first plug hole (30), the front and rear end surfaces of the base ear piece (71) are both provided with a second plug hole, the second plug pin (8) passes through the first plug hole (30) and is inserted and fixed in the second plug hole, so that the front and rear ends of the base ear piece (71) are fixed to the corresponding connecting piece (3) by means of insertion and fixing.

7. A pedal device with paddling function as claimed in claim 6, characterized in that: The base plate (70) is a rectangular or square flat plate.

8. A pedal device with paddling function as claimed in claim 1, characterized in that: The return spring (6) is a plate made of elastic material; The return spring (6) comprises a spring winding portion (60) and a spring extension portion (61); the spring winding portion (60) is wound and sleeved on the side wall of the outer shaft (2) located at the front and rear sides of the blade (5); the spring extension portion (61) is in abutment with the lower surface of the base mechanism (7D); and the bent end of the spring extension portion (61) is in swinging contact with the blade (5).

9. A pedal device with paddling function as claimed in any one of claims 1 to 5, characterized in that: The paddle (5) comprises a paddle connection portion (50) and a paddle fan plate portion (51) extending from the end of the paddle connection portion (50) in a direction away from the outer shaft (2); the paddle (5) is an integral part made of a light corrosion-resistant plastic; and the paddle fan plate portion (51) is used for contacting with water; The surface of the propeller plate portion (51) is provided with a plurality of long strip-shaped recessed groove portions (510).

10. A pedal device with paddling function as claimed in claim 9, characterized in that: The sinking grooves (510) are three in number; The three recessed grooves (510) extend outward from the side wall end close to the outer shaft (2) toward a direction away from the outer shaft (2), and there is a distance between the end portions of the three recessed grooves (510) away from the outer shaft (2) and the end surface wall of the paddle plate portion (51).

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