阅读说明：本技术 活塞推进器及活塞推进设备 (Piston propeller and piston propelling equipment ) 是由 孙立 于 2019-10-08 设计创作，主要内容包括：本申请涉及推进器领域,公开一种活塞推进器,包括设有出水口的压水仓,还包括柔性导水件、柔性牵引件以及变向器,柔性导水件,具有与出水口连通的对接端和供水喷出的自由端；柔性牵引件,一端与柔性导水件连接,另一端与变向器连接；变向器,被配置为通过驱动柔性牵引件使柔性导水件在任意方向弯曲。通过柔性牵引件带动柔性导水件弯曲,可控制喷水方向,提供不同方向驱动力。本申请还公开一种活塞推进设备。(The application relates to the field of thrusters and discloses a piston thruster, which comprises a water pressing bin with a water outlet, a flexible water guide piece, a flexible traction piece and a direction changer, wherein the flexible water guide piece is provided with a butt joint end communicated with the water outlet and a free end for spraying water; one end of the flexible traction piece is connected with the flexible water guide piece, and the other end of the flexible traction piece is connected with the direction changer; a direction changer configured to bend the flexible water guide in an arbitrary direction by driving the flexible traction member. The flexible water guide piece is driven to bend by the flexible traction piece, so that the water spraying direction can be controlled, and driving forces in different directions can be provided. The present application further discloses a piston advancing apparatus.)

1. A piston propeller comprises a water pressing bin provided with a water outlet, and is characterized by also comprising a flexible water guide piece, a flexible traction piece and a direction changer,

the flexible water guide piece is provided with a butt joint end communicated with the water outlet and a free end for spraying water;

one end of the flexible traction piece is connected with the flexible water guide piece, and the other end of the flexible traction piece is connected with the direction changer;

the direction changer is configured to bend the flexible water guide in any direction by driving the flexible traction member.

2. The piston pusher according to claim 1, characterized in that said deviator comprises:

the circumferential traction mechanism is positioned at the water outlet end of the water pressing bin, is movably connected with the flexible traction piece, and is configured to change the bending direction of the flexible water guide piece during bending by drawing the flexible traction piece to rotate along the circumferential direction of the water outlet.

3. The piston pusher of claim 2, wherein said circumferential traction mechanism comprises:

the rotating device is coaxially arranged at the water outlet end of the water pressing bin and can rotate around the axis of the water outlet, the flexible traction piece is movably connected to the outer periphery of the rotating device, and when the rotating device rotates, the position of the movable connection point arranged on the outer periphery is changed;

the first power device is in transmission connection with the rotating device and is configured to drive the rotating device to rotate.

4. The piston pusher according to claim 1, characterized in that said deviator comprises:

an axial traction mechanism connected with the other end of the flexible traction member and configured to change the bending degree of the flexible water guide member by traction movement of the flexible traction member.

5. The piston pusher of claim 4, wherein said axial traction mechanism comprises:

a winch connected to the other end of the flexible traction member, the flexible traction member being driven by rotation of the winch to change a degree of bending of the flexible water guide member;

and the second power device is in transmission connection with the winch and is configured to drive the winch to rotate.

6. The piston thruster of claim 1, wherein the number of the flexible traction members is two or more, and the two or more flexible traction members are sequentially connected with the flexible water guiding member along the axis of the flexible water guiding member.

7. The piston thruster of claim 6, wherein the connection points of two or more flexible traction members and the flexible water guiding member are connected in sequence to form a straight line.

8. The piston pusher of claim 7, further comprising:

the linkage piece is arranged on the surface of the flexible water guide piece, is movably connected with the flexible traction piece connected between the linkage piece and the free end of the flexible water guide piece, and is configured to move under the driving of the flexible traction piece so as to pull the flexible water guide piece to bend.

9. Piston propulsion device, characterized in that it comprises two or more piston propellers according to any of claims 1 to 8.

10. Piston propulsion arrangement according to claim 9, characterised in that when the piston pusher comprises an axial traction mechanism, different piston pushers share one axial traction mechanism.

Technical Field

The application relates to the technical field of jet propellers, for example to a piston propeller and piston propelling equipment.

Background

At present, most of underwater equipment propellers are of propeller structures, and the structure has the defects of high noise, easiness in abrasion, inconvenience for keeping the posture of a robot and the like, so that part of underwater equipment is replaced by a water-spraying propeller instead of the original propeller. The direction of the water jet propeller is controlled mainly by changing the direction of water jet by changing the orientation of the propeller, so that driving force in different directions is provided.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the existing water-spraying type propeller cannot flexibly control the water spraying direction.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a piston propeller to solve the technical problem that the existing water-spraying propeller cannot flexibly control the water spraying direction.

In some embodiments, the piston thruster comprises a water pressing bin provided with a water outlet, a flexible water guide piece, a flexible traction piece and a direction changer; the flexible water guide piece is provided with a butt joint end communicated with the water outlet and a free end for spraying water; one end of the flexible traction piece is connected with the flexible water guide piece, and the other end of the flexible traction piece is connected with the direction changer; a direction changer configured to bend the flexible water guide in an arbitrary direction by driving the flexible traction member.

The piston propeller provided by the embodiment of the disclosure can realize the following technical effects: the flexible traction piece is driven by the direction changer to drive the flexible water guide piece to bend, so that the water spraying direction is changed. Because the water guide piece is flexible, the water guide piece can be bent in any direction under the action of the direction changer, the water spraying direction can be changed in any direction, and the control is more flexible.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic view of an overall structure of a piston thruster provided by an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a partial structure of a piston thruster provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a partial structure of a piston thruster provided by an embodiment of the present disclosure;

fig. 4 is a schematic view of an overall structure of a piston thruster provided by an embodiment of the disclosure

Reference numerals:

1: a water pressing bin; 2: a flexible water guide; 3: a flexible traction member; 4: a direction changer; 5: a linkage member; 6: an axial traction mechanism; 61: a winch; 62: and a second power device.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

In one aspect of the present invention, as shown in fig. 1, the disclosed embodiment provides a piston propeller, which includes a pressurized water chamber 1 provided with a water outlet, and further includes a flexible water guiding member 2, a flexible traction member 3 and a direction changer 4, wherein the flexible water guiding member 2 has a butt joint end communicated with the water outlet and a free end for spraying water; one end of the flexible traction piece 3 is connected with the flexible water guide piece 2, and the other end of the flexible traction piece is connected with the direction changer 4; and a direction changer 4 configured to bend the flexible water guide 2 in an arbitrary direction by driving the flexible traction member 3.

The pressurized water bin 1 can be cylindrical, and is provided with a cylindrical cavity allowing a piston to reciprocate along the axis of the pressurized water bin 1, one end of the pressurized water bin is a water outlet end connected with a water guide piece, and the other end of the pressurized water bin is an open end.

Optionally, the piston and the water outlet end are provided with one-way valves, when the piston moves towards the water outlet end, the one-way valve of the piston is closed, the one-way valve of the water outlet end is opened, and the piston presses out the water in the water pressing bin 1 from the water outlet end; when the piston moves towards the opening end, the check valve of the piston is opened, the check valve of the water outlet end is closed, and water flows into the pressurized water bin 1 from the check valve of the piston under the action of negative pressure in the cylindrical cavity. Therefore, water always enters from the open end of the water pressing bin 1 and flows out from the water outlet end, so that the piston propeller keeps one direction by the reaction force of the water, and the propelling force generated by the piston propeller is smoother.

Optionally, a tubular water inlet auxiliary part is arranged parallel to the axis of the pressurized water bin 1, one end of the water inlet auxiliary part is close to the water outlet of the water guide part, and the other end of the water inlet auxiliary part exceeds the open end of the pressurized water bin 1. When the piston moves towards the water outlet end, the piston presses out the water in the water pressing bin 1 from the water outlet end; when the piston moves to the open end, negative pressure is generated in the cylindrical cavity, and at the moment, water at the open end flows into the water outlet of the water guide piece through the water inlet auxiliary piece under the action of the water inlet auxiliary piece, and then flows into the water pressing bin 1 through the water guide piece. Therefore, most of water enters the pressurized water bin 1 from the open end of the pressurized water bin 1 and flows out from the water outlet end, so that the piston propeller keeps a direction by the reaction force of the water, and the propelling force generated by the piston propeller is smoother.

The flexible water guide 2 is a tubular structure capable of flexibly bending in any direction, and may be a pipe made of a flexible material (e.g., a rubber pipe) or a bendable structure made of a hard material (e.g., a corrugated pipe made of a metal material). When water is sprayed out along the free end of the flexible water guide 2, the flexible water guide 2 is also subjected to the reaction force (propelling force) of the water, and the direction of the force is the same as the spraying direction of the water, so that the flexible water guide 2 can be bent in any direction, and the propelling force in any direction can be generated.

The bending of the flexible water guide 2 may be accomplished under the traction of the flexible traction member 3. The flexible traction element 3 may be any elongated flexible element capable of transmitting traction force, such as a wire, a chain, a steel cable, etc., and one end of the flexible traction element is connected to the flexible water guiding element 2 to pull the flexible water guiding element 2 to bend. Wherein, in order to guarantee the precision of pulling, the flexible piece 3 that pulls can be rigid connection with flexible water guide 2's connection, and like this, the traction force that the flexible piece 3 was pulled is directly exerted on flexible water guide 2 to the action volume that the flexible piece 3 was pulled also directly reacts on flexible water guide 2, makes the degree of curvature of flexible water guide 2 foreseeable, and control is more accurate. Meanwhile, the flexible traction piece 3 and the flexible water guide piece 2 can be connected in an elastic mode, so that when the flexible traction piece 3 and the flexible water guide piece 2 are clamped, the elastic connection can play a buffering role, and the flexible traction piece 3 or the flexible water guide piece 2 is prevented from being damaged.

Optionally, the connection point of the flexible traction element 3 and the flexible water guide element 2 is arranged at the free end of the flexible water guide element 2, and the orientation of the propelling force is directly determined by the orientation of the free end of the flexible water guide element 2, so that the connection point is arranged at the free end of the flexible water guide element 2, the orientation of the connection point can be directly controlled, and the control is more accurate.

Optionally, the number of the flexible traction members 3 is more than two, and the more than two flexible traction members 3 are sequentially connected with the flexible water guide member 2 along the axis of the flexible water guide member 2. The flexible water guide 2 is ideally curved such that the axis of the flexible water guide 2 is curved in a smooth arc, so that the energy loss of water flowing in the flexible water guide 2 is small. In order to bend the axis of the flexible water guide 2 into a smooth arc, the flexible water guide 2 needs to be pulled at multiple points at the same time, and the more pulling points, the smoother the arc, so that a plurality of flexible pulling members 3 need to be arranged along the axis of the flexible water guide 2.

Optionally, the connection points of more than two flexible traction members 3 and the flexible water guide member 2 are connected in sequence to form a straight line. In this way, the storage and the arrangement of the flexible traction piece 3 are facilitated. Furthermore, a containing ring can be arranged on the surface of the flexible water guide piece 2, and all the flexible traction pieces 3 penetrate through the containing ring to pull the flexible water guide piece 2, so that the different flexible traction pieces 3 are prevented from interfering with each other.

In some embodiments, further comprising: the linkage piece 5 is arranged on the surface of the flexible water guide piece 2, is movably connected with the flexible traction piece 3 connected between the linkage piece 5 and the free end of the flexible water guide piece 2, and is configured to move under the driving of the flexible traction piece 3 so as to pull the flexible water guide piece 2 to bend. In this way, the number of flexible traction members 3 can be reduced while ensuring that the axis of the flexible water guide 2 is bent in a smooth arc. The flexible traction piece 3 passes through the linkage piece 5, and when the flexible traction piece 3 is subjected to traction force, the linkage piece 5 can be driven to move, so that the flexible traction piece 3 is bent.

The linkage piece 5 can be a circular ring arranged on the surface of the flexible water guide piece 2, the flexible traction piece 3 penetrates through the circular ring, and when the flexible water guide piece 2 is bent, the flexible traction piece 3 is bent by taking the circular ring as a fulcrum, and at the moment, if traction force is applied to the flexible traction piece 3, part of force is applied to the linkage piece 5 through the fulcrum, so that the flexible water guide piece 2 connected with the linkage piece is driven to bend.

The movement of the free end of the flexible water guide 2 can be decomposed into bending movement of the axis of the flexible water guide and rotating movement around the axis of the water pressing bin 1, and the movement of the flexible water guide 2 in any direction can be realized.

In some embodiments, to achieve a rotational movement of the free end of the flexible water deflector 2 around the axis of the pressurized water tank 1, the optional deflector 4 comprises: the circumferential traction mechanism is positioned at the water outlet end of the water pressing bin 1, is movably connected with the flexible traction piece 3, and is configured to change the bending direction of the flexible water guide piece 2 during bending by drawing the flexible traction piece 3 to rotate along the circumferential direction of the water outlet. The circumferential traction mechanism is coaxially arranged with the pressurized water bin 1 and can rotate around the axis of the pressurized water bin 1, an opening is arranged on the circumference of the circumferential traction mechanism, and the flexible traction piece 3 is connected with the flexible water guide piece 2 through the opening. Thus, as the circumferential traction mechanism rotates, the angle of the opening relative to the surge tank 1 changes, and the angle of the flexible traction member 3 passing through the opening relative to the surge tank 1 also changes. Because the flexible water guide 2 is bent under the traction action of the flexible traction piece 3, the bending direction of the flexible water guide 2 always faces the flexible traction piece 3, and thus, the rotation of the circumferential traction mechanism changes the angle of the flexible water guide 2 to the pressurized water bin 1, and the bending direction of the flexible water guide 2 is also changed.

Wherein, the periphery of the circumferential traction mechanism can be provided with an opening or an annular structure, and all the structures which can realize the reciprocating motion and allow the flexible traction piece 3 to pass through can be realized.

In some embodiments, the circumferential traction mechanism comprises: the rotating device is coaxially arranged at the water outlet end of the water pressing bin 1 and can rotate around the axis of the water outlet, the flexible traction piece 3 is movably connected to the outer periphery of the rotating device, and when the rotating device rotates, the position of a movable connection point arranged on the outer periphery is changed; and the first power device is in transmission connection with the rotating device and is configured to drive the rotating device to rotate.

The first power device can be a power unit capable of realizing rotary motion, such as a hydraulic motor, an electric motor and the like, and can be in a belt transmission mode, a gear transmission mode and the like with the rotating device to drive the rotating device to rotate; the first power device may be a power unit capable of realizing reciprocating motion, such as a cylinder, an electromagnetic relay device, and the like, and the rotating device may be connected to the first power device through a link mechanism to convert the reciprocating motion of the power unit into the rotating motion of the rotating device. Therefore, the first power device drives the rotating device to rotate, so that the response time is shorter and the control is more flexible.

In some embodiments, the deviator 4 comprises: and the axial traction mechanism is connected with the other end of the flexible traction piece 3 and is configured to change the bending degree of the flexible water guide piece 2 by drawing the flexible traction piece 3 to move.

The bending of the axis of the flexible water guide piece 2 is realized by the tightening or loosening of the flexible traction piece 3, and when the flexible traction piece 3 is tightened, the flexible water guide piece 2 is driven to bend; when the flexible traction member 3 is relaxed, the flexible water guide 2 is restored from the bent state. The axial traction mechanism is connected with the flexible traction member 3 to provide traction force and change the loosening or tightening state of the flexible traction member 3.

Wherein, the axial traction mechanism can be a connecting rod mechanism for realizing reciprocating motion and is provided with a connecting rod connected with the flexible traction piece 3, and the connecting rod reciprocates to drive the flexible traction piece 3 connected with the connecting rod to reciprocate, thereby realizing the tightening or loosening of the flexible traction piece 3.

In some embodiments, the axial traction mechanism comprises: a winch 61 connected to the other end of the flexible traction member 3, the flexible traction member 3 being driven by rotation of the winch 61 to change the degree of bending of the flexible water guide 2; and a second power device 62, which is in transmission connection with the winch 61 and is configured to drive the winch 61 to rotate.

The second power device 62 may be a power unit capable of realizing a revolving motion, such as a hydraulic motor, an electric motor, etc., and the winch 61 may be in a belt transmission, a gear transmission, etc., to drive the winch 61 to rotate; the second power unit 62 may be a power unit capable of performing a reciprocating motion, such as an air cylinder or an electromagnetic relay device, and the winch 61 may convert the reciprocating motion of the power unit into a rotational motion of the winch 61 through a link mechanism. In this way, the capstan 61 is driven to rotate by the second power device 62, so that the response time is shorter and the control is more flexible.

The connection point is provided on the periphery of the winch 61 to be connected with the flexible traction member 3, so that the flexible traction member 3 can be wound on the connection point when the winch 61 rotates in the forward direction, thereby tightening the flexible traction member 3 and forcing the flexible water guide member 2 connected thereto to be bent, and the flexible traction member 3 reduces the part wound on the connection point when the winch 61 rotates in the reverse direction, thereby loosening the flexible water guide member 2, and the flexible water guide member 2 is partially or completely restored from the bent state.

In another aspect of the invention, a piston propulsion device is provided, comprising more than two piston propellers as described above.

The piston propulsion device is formed by more than two piston propellers, the driving force can be increased, different piston propellers can generate the propulsion force in different directions, and the combination of the propulsion force in different directions can enable the piston propulsion device to generate different motion modes. For example, when one of the piston pushers generates a leftward thrust and the other pusher generates a rightward thrust that is not collinear with the thrust, the piston propulsion device generates a torsional force that causes the piston propulsion device to rotate.

Wherein, the pressurized-water bins 1 of different piston propellers are arranged in parallel, and the water outlet ends are uniformly arranged on the same side.

In some embodiments, when the piston pusher comprises an axial traction mechanism, different piston pushers share one axial traction mechanism. For simplifying piston propulsion equipment, different piston propellers can share the same axial traction mechanism, a flexible traction piece 3 storage plate is arranged, and all flexible traction pieces 3 are stored and then connected to the axial traction mechanism.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. Each embodiment may be described with emphasis on differences from other embodiments, and like parts may be referred to each other between the respective embodiments. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the first element are renamed consistently and all occurrences of the second element are renamed consistently. The first and second elements are both elements, but may not be the same element.