Gear shifting mechanism and waterway vehicle

Abstract

The utility model provides a gear shifting mechanism and a waterway traffic tool, and relates to the technical field of waterway traffic tools. The utility model provides a gear shifting mechanism. The gear shifting mechanism comprises a gear shifting control assembly, a transmission assembly and a shielding assembly movably connected to a two-way spray pump. The bidirectional spray pump is provided with a first pump port and a second pump port and has a positive and negative rotation switching function, so that one of the first pump port and the second pump port is used for feeding water, and the other one is used for discharging water; the gear shifting control assembly is in transmission connection with the shielding assembly through the transmission assembly. In the first station state, the shielding assembly shields the first pump opening or the second pump opening; and in the second station state, the shielding assembly avoids the first pump opening and the second pump opening. When a reverse gear is engaged, floating objects are prevented from being reversely sucked into the spray pump through the shielding assembly, then paddles of the pump are prevented from being wound, the power reliability is improved, and the spray pump has the technical advantages of being compact in structure and easy to operate and control and is particularly suitable for being used for small ship bodies such as a kalting ship.

Description

Technical Field

[0001] This utility model relates to the field of waterway transportation technology, and in particular to a gear shifting mechanism and a waterway transportation vehicle. Background Technology

[0002] Water transport vehicles typically use jet pumps to propel the water flow, which in turn propels the vehicle forward or backward. During this process, steering and guiding structures can be used to change the direction of the water flow, thus achieving steering. Water transport vehicles operating in waters with a large amount of floating debris usually need to eliminate reverse gear. Furthermore, even when equipped with reverse gear, engaging it often results in power loss or even damage to the jet pump due to floating debris being sucked back into the pump. Utility Model Content

[0003] The purpose of this invention is to provide a gear shifting mechanism and a waterway transportation vehicle to alleviate the technical problem in the prior art where floating objects are easily adsorbed by the spray pump when the waterway transportation vehicle is engaged in reverse gear.

[0004] In a first aspect, the shifting mechanism provided by this utility model includes: a shifting control component, a transmission component, and a shielding component movably connected to the bidirectional injection pump;

[0005] The bidirectional spray pump has a first pump port and a second pump port, and the bidirectional spray pump has a forward and reverse switching function, so that one of the first pump port and the second pump port can be used for water intake and the other for water output.

[0006] The shift control component is connected to the shielding component via the transmission component, and the shielding component has a first working position state and a second working position state.

[0007] In the first working position state, the shielding component shields the first pump port or the second pump port;

[0008] In the second working state, the shielding component avoids the first pump port and the second pump port.

[0009] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the bidirectional injection pump is equipped with a bracket;

[0010] The shielding assembly includes a filter element connected to the transmission assembly and movably connected to the bracket.

[0011] In conjunction with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein the filter element includes: a first filter plate and a second filter plate, the first filter plate and the second filter plate being respectively hinged to the bracket;

[0012] Furthermore, the first filter plate and the second filter plate are respectively connected to the transmission assembly, and an openable and closable flow port is formed between the first filter plate and the second filter plate;

[0013] When the flow port is closed in the first working position state, the first filter plate and the second filter plate together shield the first pump port or the second pump port.

[0014] In the second working state, the flow port is open, and the first filter plate and the second filter plate are respectively rotated to the side of the first pump port or the second pump port.

[0015] In conjunction with the second possible implementation of the first aspect, this utility model provides a third possible implementation of the first aspect, wherein the first filter plate is hinged to the first push-pull rod, the second filter plate is hinged to the second push-pull rod, and the first push-pull rod and the second push-pull rod are respectively connected to the transmission assembly.

[0016] In conjunction with the first aspect, this utility model provides a fourth possible implementation of the first aspect, wherein the transmission assembly includes: a flexible shaft cable and a transmission seat;

[0017] One end of the flexible shaft cable is connected to the gear shift control component, and the other end of the flexible shaft cable is connected to the transmission seat, which is connected to the shielding component.

[0018] In conjunction with the fourth possible implementation of the first aspect, this utility model provides a fifth possible implementation of the first aspect, wherein the flexible shaft pull wire is connected to the transmission seat through a shaft and a threaded component;

[0019] The flexible shaft is connected to the shaft rod by a pull wire, the threaded component is installed on the transmission seat, and the threaded component is connected to the shaft rod.

[0020] In conjunction with the fifth possible implementation of the first aspect, this utility model provides a sixth possible implementation of the first aspect, wherein the shaft is slidably fitted to the sleeve, and the sleeve is installed on the fuselage of the water vehicle.

[0021] In conjunction with the fourth possible implementation of the first aspect, this utility model provides a seventh possible implementation of the first aspect, wherein the gear shifting control component includes: a gear shifter housing, a gear shift disc, a handle, and a gear position switch;

[0022] The shift disc is rotatably connected to the shifter housing, and the flexible shaft cable is connected to the shift disc;

[0023] The handle extends radially along the shift disc and is connected to the shift disc to drive the shift disc to rotate and adjust the length of the flexible shaft cable wound around the shift disc.

[0024] The gear position switch is installed inside the gear shifter housing, and the gear shift plate or the handle is provided with a trigger part corresponding to the gear position switch.

[0025] In conjunction with the seventh possible implementation of the first aspect, this utility model provides an eighth possible implementation of the first aspect, wherein the handle is provided with an elastic locking member, and the gear shift housing is provided with a limiting part adapted to the elastic locking member.

[0026] Secondly, the waterway transportation vehicle provided by this utility model is equipped with the gear shifting mechanism described in the first aspect.

[0027] The present invention provides the following beneficial effects: a shielding component is movably connected to a bidirectional spray pump, wherein the bidirectional spray pump has a first pump port and a second pump port, and the bidirectional spray pump has a forward and reverse switching function, so that one of the first pump port and the second pump port can be used for water intake and the other for water output. The shift control component is connected to the shielding component via a transmission component, and the shielding component has a first working state and a second working state. In the first working state, the shielding component shields the first pump port or the second pump port, and in the second working state, the shielding component avoids the first pump port and the second pump port. The second working state corresponds to the working state of the spray pump in forward gear, and the first working state corresponds to the reverse working state of the spray pump in reverse gear. By blocking floating objects from being sucked into the spray pump in the reverse direction through the shielding component, the impeller of the pump is prevented from being entangled, thus improving the reliability of the power. It has the technical advantages of compact structure and easy operation, and is especially suitable for use on small boats such as go-karts.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the gear shifting mechanism provided in an embodiment of this utility model;

[0031] Figure 2A schematic diagram of the shifting mechanism provided in the embodiment of this utility model in the first working position state;

[0032] Figure 3 A schematic diagram of the shifting mechanism provided in the embodiment of this utility model in the second working position;

[0033] Figure 4 This is a schematic diagram of the shift control assembly of the shift mechanism provided in an embodiment of the present utility model, with the shifter housing removed.

[0034] Icons: 100 - Gear shift control assembly; 110 - Gear shifter housing; 120 - Gear shift disc; 130 - Handle; 140 - Gear position switch; 200 - Transmission assembly; 210 - Flexible shaft cable; 220 - Transmission seat; 230 - Shaft; 240 - Threaded part; 250 - Sleeve; 300 - Shielding assembly; 310 - First filter plate; 320 - Second filter plate; 330 - First push-pull rod; 340 - Second push-pull rod; 400 - Two-way spray pump; 500 - Bracket. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] like Figure 1 As shown, the shifting mechanism provided in this embodiment of the present invention includes: a shifting control component 100, a transmission component 200, and a shielding component 300 movably connected to a bidirectional spray pump 400; the bidirectional spray pump 400 has a first pump port and a second pump port, and the bidirectional spray pump 400 has a forward and reverse switching function, so that one of the first pump port and the second pump port can be used for water inlet and the other for water outlet; the shifting control component 100 is connected to the shielding component 300 via the transmission component 200, and the shielding component 300 has a first working state and a second working state; in the first working state, the shielding component 300 shields the first pump port or the second pump port; in the second working state, the shielding component 300 avoids the first pump port and the second pump port.

[0039] The shielded end of the shielding component 300 serves as the water inlet of the bidirectional spray pump 400 in reverse gear. In forward gear, the shift control component 100 drives the shielding component 300 to avoid the pump inlet of the bidirectional spray pump 400 via the transmission component 200, so that the water can be sprayed out quickly, thereby generating greater thrust. In reverse gear, the shift control component 100 drives the shielding component 300 to switch from the second position to the first position via the transmission component 200, with the shielded end of the first and second pump inlets placed at the rear of the water vehicle. Water is drawn in from the rear and thrust forward, driving the water vehicle backward. During this process, the shielding component 300 blocks the flow of water, preventing floating debris such as aquatic plants from being sucked into the bidirectional spray pump 400, thus preventing the blades of the bidirectional spray pump 400 from becoming entangled and causing power failure.

[0040] In this embodiment of the utility model, the bidirectional spray pump 400 is equipped with a bracket 500; the shielding component 300 includes a filter element, which is connected to the transmission component 200 and is movably connected to the bracket 500.

[0041] In an optional embodiment, the shielding component 300 may also include devices such as a grille, which can typically shield most of the floating objects in the water and prevent them from being sucked into the bidirectional spray pump 400.

[0042] See Figure 2 and Figure 3In an optional embodiment, the filter element includes a first filter plate 310 and a second filter plate 320, which are respectively hinged to the bracket 500. The first filter plate 310 and the second filter plate 320 are respectively connected to the transmission assembly 200, and an openable / closable flow port is formed between the first filter plate 310 and the second filter plate 320. In the first working state, the flow port is closed, and the first filter plate 310 and the second filter plate 320 together shield the first pump port or the second pump port (see...). Figure 2 In the second working state, the flow port is open, and the first filter plate 310 and the second filter plate 320 are respectively rotated to the side of the first pump port or the second pump port (see...). Figure 3 ).

[0043] It should be noted that the shift control component 100 can generate point signal transformation to provide control signals to the controller, thereby regulating the running direction of the bidirectional injection pump 400 to achieve the switching between forward and reverse gears. On the other hand, the shift control component 100 can be driven by the transmission component 200 to synchronously drive the first filter plate 310 and the second filter plate 320 to rotate, thereby switching to the second working state when the forward gear is engaged and switching to the first working state when the reverse gear is engaged.

[0044] In an optional embodiment, the first filter plate 310 is hinged to the first push-pull rod 330, and the second filter plate 320 is hinged to the second push-pull rod 340. The first push-pull rod 330 and the second push-pull rod 340 are respectively connected to the transmission assembly 200. The transmission assembly 200 can not only transmit tension to pull the first push-pull rod 330 and the second push-pull rod 340 respectively, thereby driving the first filter plate 310 and the second filter plate 320 to close relative to each other to block the water inlet of the bidirectional spray pump 400 in reverse, but also transmit thrust through the first push-pull rod 330 and the second push-pull rod 340 to drive the first filter plate 310 and the second filter plate 320 to open relative to each other in forward gear, thereby avoiding the water outlet of the bidirectional spray pump 400 in forward gear.

[0045] In an optional embodiment, an elastic reset device may be added to connect the first filter plate 310 and the second filter plate 320. The elastic force gives the first filter plate 310 and the second filter plate 320 a tendency to close relative to each other, so that when reverse gear is engaged, the first filter plate 310 and the second filter plate 320 can close quickly and block the pump port of the bidirectional injection pump 400.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, the transmission assembly 200 includes: a flexible shaft cable 210 and a transmission seat 220; one end of the flexible shaft cable 210 is connected to the shift control assembly 100, the other end of the flexible shaft cable 210 is connected to the transmission seat 220, and the transmission seat 220 is connected to the shielding assembly 300.

[0047] The first push-pull rod 330 and the second push-pull rod 340 are respectively hinged to the transmission seat 220. The transmission seat 220 is connected by a flexible shaft cable 210. The flexible shaft cable 210 is a metal flexible shaft that slides in conjunction with the support tube. The metal flexible shaft moves back and forth along the axial direction of the support tube, thereby generating push and pull forces, which can push and pull the transmission seat 220 to move.

[0048] like Figure 2 and Figure 3 As shown, the flexible shaft cable 210 is connected to the transmission seat 220 via the shaft 230 and the threaded component 240. The flexible shaft cable 210 connects to the shaft 230, and the threaded component 240 is installed on the transmission seat 220 and connected to the shaft 230. When the threaded component 240 is tightened, the shaft 230 can approach or move away from the transmission seat 220 along the axial direction of the threaded component 240, thereby adjusting the tension of the flexible shaft cable 210.

[0049] Furthermore, the shaft 230 is slidably fitted to the sleeve 250, which is installed on the fuselage of the water vehicle. The sleeve 250 restricts the degree of freedom of the shaft 230 so that the shaft 230 can only reciprocate along the axial direction of the sleeve 250. The sleeve 250 and the bidirectional spray pump 400 are respectively connected to the fuselage, thereby ensuring that the relative position of the bidirectional spray pump 400 and the transmission assembly 200 is stable.

[0050] In addition, sealing rings and other devices can be added between the shaft 230 and the sleeve 250 to prevent water from seeping into the transmission assembly 200 along the sleeve 250.

[0051] like Figure 1 and Figure 4 As shown, the gear shift control assembly 100 includes: a gear shift housing 110, a gear shift disc 120, a handle 130, and a gear position switch 140; the gear shift disc 120 is rotatably connected inside the gear shift housing 110, and a flexible shaft cable 210 is connected to the gear shift disc 120; the handle 130 extends radially along the gear shift disc 120 and is connected to the gear shift disc 120 to drive the gear shift disc 120 to rotate and adjust the length of the flexible shaft cable 210 wound around the gear shift disc 120; the gear position switch 140 is installed inside the gear shift housing 110, and the gear shift disc 120 or the handle 130 is provided with a trigger part corresponding to the gear position switch 140.

[0052] The gear position switch 140 may include a forward gear micro switch and a reverse gear micro switch. The forward gear micro switch and the reverse gear micro switch are spaced apart around the shift disc 120. When the operating handle 130 swings around the axis of the shift disc 120, the shift disc 120 rotates synchronously. This not only enables the pulling or pushing of the flexible shaft cable 210, but also allows the protrusion on the shift disc 120 or the handle 130 to trigger the forward gear micro switch or the reverse gear micro switch accordingly. The working direction of the bidirectional injection pump 400 is controlled according to the state of the forward gear micro switch and the reverse gear micro switch.

[0053] In an alternative implementation, the shift control assembly 100 may employ an existing manual throttle cable controller for excavators or harvesters, which can unlock and operate the lever tilt to pull or release the flexible shaft cable 210, and can lock the lever to remain in a specific gear.

[0054] In an optional embodiment, the handle 130 is provided with an elastic locking element, and the shifter housing 110 is provided with a limiting part adapted to the elastic locking element. The limiting part can be configured as a groove, teeth, or a limiting block, etc. The handle 130 slides radially along the shifter disc 120 to overcome the elastic force of the elastic locking element and temporarily disengage the elastic locking element from the limiting part. After the handle 130 has completed its rotation and is released, the elastic locking element can spring back and re-engage with the corresponding limiting part, thereby achieving gear locking. This can be referenced to the existing gear lever locking mechanism of ships, and will not be elaborated upon here.

[0055] The waterway vehicle provided in this embodiment of the utility model is equipped with the shifting mechanism described in the above embodiments. The waterway vehicle may include a towboat, a lure boat, a kayak, a surfboard, and a go-kart, etc. Because the shifting mechanism has a compact structure and small size, it is especially suitable for small boats such as go-karts.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gear shifting mechanism, characterized in that, include: The gear shift control assembly (100), the transmission assembly (200), and the shielding assembly (300) movably connected to the bidirectional injection pump (400); The bidirectional spray pump (400) has a first pump port and a second pump port, and the bidirectional spray pump (400) has a forward and reverse switching function so that one of the first pump port and the second pump port can be used for water intake and the other for water output. The shift control component (100) is connected to the shielding component (300) via the transmission component (200), and the shielding component (300) has a first working position state and a second working position state. In the first working position state, the shielding component (300) shields the first pump port or the second pump port; In the second working state, the shielding component (300) avoids the first pump port and the second pump port.

2. The shifting mechanism according to claim 1, characterized in that, The bidirectional injection pump (400) is equipped with a bracket (500); The shielding assembly (300) includes a filter element connected to the transmission assembly (200) and movably connected to the bracket (500).

3. The shifting mechanism according to claim 2, characterized in that, The filter element includes a first filter plate (310) and a second filter plate (320), wherein the first filter plate (310) and the second filter plate (320) are respectively hinged to the bracket (500); Furthermore, the first filter plate (310) and the second filter plate (320) are respectively connected to the transmission assembly (200), and an openable and closable flow port is formed between the first filter plate (310) and the second filter plate (320); When the flow port is closed in the first working position state, the first filter plate (310) and the second filter plate (320) together shield the first pump port or the second pump port; In the second working state, the flow port is open, and the first filter plate (310) and the second filter plate (320) are respectively rotated to the side of the first pump port or the second pump port.

4. The shifting mechanism according to claim 3, characterized in that, The first filter plate (310) is hinged to the first push-pull rod (330), the second filter plate (320) is hinged to the second push-pull rod (340), and the first push-pull rod (330) and the second push-pull rod (340) are respectively connected to the transmission assembly (200).

5. The shifting mechanism according to any one of claims 1-4, characterized in that, The transmission assembly (200) includes: a flexible shaft cable (210) and a transmission seat (220); One end of the flexible shaft cable (210) is connected to the gear shift control assembly (100), and the other end of the flexible shaft cable (210) is connected to the transmission seat (220). The transmission seat (220) is connected to the shielding assembly (300).

6. The shifting mechanism according to claim 5, characterized in that, The flexible shaft cable (210) is connected to the transmission seat (220) via a shaft (230) and a threaded component (240); The flexible shaft cable (210) is connected to the shaft (230), the threaded part (240) is installed on the transmission seat (220), and the threaded part (240) is connected to the shaft (230).

7. The shifting mechanism according to claim 6, characterized in that, The shaft (230) is slidably fitted to the sleeve (250), which is installed on the fuselage of the water vehicle.

8. The shifting mechanism according to claim 5, characterized in that, The shift control assembly (100) includes: a shift housing (110), a shift disc (120), a handle (130), and a gear switch (140); The shift disc (120) is rotatably connected to the shifter housing (110), and the flexible shaft cable (210) is connected to the shift disc (120); The handle (130) extends radially along the shift plate (120) and is connected to the shift plate (120) to drive the shift plate (120) to rotate and adjust the length of the flexible shaft cable (210) wound around the shift plate (120). The gear position switch (140) is installed inside the gear shift housing (110), and the gear shift plate (120) or the handle (130) is provided with a trigger part corresponding to the gear position switch (140).

9. The shifting mechanism according to claim 8, characterized in that, The handle (130) is provided with an elastic locking member, and the shifter housing (110) is provided with a limiting part adapted to the elastic locking member.

10. A waterway transportation vehicle, characterized in that, The waterway vehicle is equipped with a gear shifting mechanism as described in any one of claims 1-9.

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