Jet pump, surfboard and ship

Abstract

The injection pump comprises a pump body, a flow guide cover and a driving source, the flow guide cover and the driving source are arranged in the pump body, and a water inlet and a water outlet of the flow guide cover extend out of the pump body to form a first drainage channel; wherein the pump body is provided with a water inlet and a water outlet, the water inlet, the water outlet and the pump body form a second water drainage channel, the driving source is arranged in the second water drainage channel, and the second water drainage channel is not communicated with the first water drainage channel. Correspondingly, the invention further discloses a surfboard and a ship, and both the surfboard and the ship are provided with the injection pump. On the basis, the jet pump designed according to the technical scheme has very excellent drainage and heat dissipation performance, the overheating problem caused by long-time work of the driving source can be avoided, it is ensured that the working temperature of the driving source is stable, then the service life is prolonged, the use experience is improved, and the jet pump has good popularization prospects and application value.

Description

Technical Field

[0001] The present invention relates to the field of driving technology, and particularly to an injection pump, a surfboard and a ship. Background Art

[0002] As is well known, surfing is popular among people due to its excitement and effectiveness in exercising the body. Currently, traditional surfboards must rely on the thrust of wind and waves to be used. When there is no wind or waves are small, the surfboard loses its due function. For this reason, in order to surf even when there is no wind or waves are small, some manufacturers have started to research and design self-driven surfboards.

[0003] It is found that currently existing self-driven surfboards generally include a board body and a jet pump structure provided on the board body. This jet pump structure can be arranged underwater to utilize a driving member provided in the jet pump, such as a motor, etc., to output a driving force, so as to drive water to enter from the water inlet of the jet pump and spray out from the water outlet, thereby providing the power for surfing on water by means of the reaction force of the water flow. Thus, the jet pump is the core power component of the above self-driven surfboard and is also a popular research and development direction.

[0004] However, it is found that in currently existing self-driven surfboards, since the jet pump will be immersed in water and dissipate heat to a certain extent, current R & D personnel do not focus on the heat dissipation problem of the driving source in the jet pump; however, in the actual use process, once this self-driven surfboard is used for a long time, that is, the jet pump works for a long time, it will cause the driving source to overheat, and it is easy to evaporate seawater under the overheated condition, so that the salt in the seawater crystallizes, affecting the subsequent normal operation and service life of the driving source. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: to provide an injection pump, a surfboard and a ship to solve the problem that the driving source in the existing injection pump is prone to overheat, affecting subsequent driving work and reducing the service life.

[0006] To solve the above technical problem, the technical solution adopted by the present invention is: an injection pump, which includes: a pump body, a flow guide cover and a driving source provided in the pump body, and the water inlet and water outlet of the flow guide cover respectively extend out of the pump body to form a first drainage channel; wherein, a water inlet and a drainage port are opened on the pump body, and the water inlet, the drainage port and the pump body constitute a second drainage channel, the driving source is arranged in the second drainage channel, and the second drainage channel is not communicated with the first drainage channel.

[0007] Further, in the jet pump of the present invention, a receiving cavity is provided in the pump body, and the receiving cavity includes a first chamber and a second chamber arranged in sequence along the length direction of the pump body; wherein, the driving source is arranged in the first chamber, and the flow guide cover is arranged in the second chamber.

[0008] Further, in the jet pump of the present invention, the first chamber communicates with the second chamber, and the water inlet communicates with the first chamber, and the drain outlet communicates with the second chamber.

[0009] Further, in the jet pump of the present invention, the water inlet of the flow guide cover extends out from the lower bottom surface of the pump body, and the water inlet is opened on the lower bottom surface of the pump body.

[0010] Further, in the jet pump of the present invention, a filter screen is provided at the water inlet of the flow guide cover and / or at the water inlet.

[0011] Further, in the jet pump of the present invention, the water outlet of the flow guide cover extends out from one end of the pump body far away from the driving source in the length direction.

[0012] Further, in the jet pump of the present invention, a propeller assembly is further included. The propeller assembly is arranged in the flow guide cover, and the power output end of the driving source extends into the flow guide cover and is connected to the propeller assembly to drive the propeller assembly to rotate.

[0013] Further, in the jet pump of the present invention, a fairing is further included. The fairing is detachably connected to the water outlet of the flow guide cover; wherein, a plurality of fins are provided in the fairing, and the fins are used to rectify the rotating flow of water into a linear flow of water.

[0014] Correspondingly, the present invention also discloses a surfboard, which is specifically implemented based on the above jet pump of the present invention. The above jet pump of the present invention is provided on the surfboard to use the above jet pump as the core power output mechanism.

[0015] Meanwhile, the present invention also discloses a ship, which is specifically implemented based on the above jet pump of the present invention. The above jet pump of the present invention is provided on the ship to use the above jet pump as the core power output mechanism. Of course, in some other embodiments, the above jet pump of the present invention can also be specifically installed on a sea jet ski or other water sports equipment for power output. The present invention does not make special limitations on the specific application scenarios of the jet pump, and users can select according to actual needs.

[0016] The beneficial effect of the present invention is that the present invention designs a brand-new jet pump, which can solve the problem that the driving source in the existing jet pump is prone to overheating, affecting the subsequent driving work and reducing the service life. The jet pump designed by the present invention optimizes the arrangement of two drainage channels in the pump body, namely the first drainage channel and the second drainage channel. The two drainage channels are independent of each other, so that the first drainage channel is used to spray water and form a reverse thrust to realize the driving function, and the water flowing in the second drainage channel is used to take away the heat generated when the driving source is working, so as to realize drainage and heat dissipation; the jet pump designed by the present invention can greatly improve the heat dissipation effect of the driving source, and it has very excellent drainage and heat dissipation performance, and can avoid the overheating problem caused by the long-term operation of the driving source, ensure the stability of the working temperature of the driving source, thereby extending the service life and improving the use experience, and it has good promotion prospects and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the jet pump of the present invention in one embodiment from one viewing angle;

[0018] Figure 2 It is a schematic structural diagram of the jet pump of the present invention in another perspective under one embodiment;

[0019] Figure 3 A top view of the structure of the jet pump according to one embodiment of the present invention;

[0020] Figure 4 AA cross-sectional view of the jet pump according to the present invention in one embodiment;

[0021] Figure 5 This is a schematic structural diagram of the jet pump of the present invention in one embodiment with part of the pump body hidden;

[0022] Figure 6 It is a structural explosion diagram of the jet pump according to the present invention in one embodiment;

[0023] Figure 7 for Figure 6 A partial enlarged view of position B of the jet pump shown;

[0024] Figure 8 The assembly diagram of installing the jet pump according to the present invention on a surfboard is schematically shown.

[0025] Description of labels:

[0026] 1. Jet pump; 11. Power input interface; 12. Switch button;

[0027] 2. Pump body; 21. Water inlet; 22. Water outlet; 23. First chamber; 24. Second chamber;

[0028] 3. Fairing; 31. Water inlet; 32. Water outlet;

[0029] 4. Filter screen;

[0030] 5. Propeller assembly;

[0031] 6. Fairing; 61. Fins;

[0032] 7. Driving source; 71. Output shaft; 72. Rotating rod;

[0033] 8. Surfboard. Detailed implementation mode

[0034] To describe in detail the technical content, achieved purpose and effects of the present invention, the following is described in conjunction with the implementation modes and with reference to the accompanying drawings.

[0035] As Figures 1-7 shown, in this embodiment, the present invention designs a jet pump 1 with a brand-new structure, which includes: a pump body 2 and a fairing 3 and a driving source 7 arranged in the above-mentioned pump body 2. Among them, in this jet pump 1, the space in the pump body 2 can be divided by using the above-mentioned fairing 3 to set up two independent drainage channels, namely the first drainage channel and the second drainage channel, to perform different functions respectively.

[0036] Referring to Figure 3 、 Figure 4 and Figure 5 shown, in this embodiment, the above-mentioned fairing 3 is specifically arranged in the pump body 2, and the water inlet 31 and the water outlet 32 of the fairing 3 respectively extend out from the pump body 2 to form the first drainage channel, that is, the flow channel in the above-mentioned fairing 3 is used as the above-mentioned first drainage channel alone. By arranging a propeller assembly 5 in this first drainage channel, the rotation of the propeller assembly 5 is used to drive the water flow to enter the first drainage channel from the water inlet 31 of the fairing 3 and spray out from the water outlet 32 of the fairing 3, and form a reaction force to achieve the driving function.

[0037] Correspondingly, referring to Figure 2 、 Figure 3 and Figure 4 shown, in this embodiment, a water inlet 21 and a water outlet 22 are also opened on the pump body 2 to form a second drainage channel by using the space formed by the self-shell of the pump body 2 and the above-mentioned water inlet 21 and water outlet 22; at this time, the above-mentioned driving source 7 can be arranged in the second drainage channel, and the heat generated during the operation of the driving source 7 is taken away by the water flow flowing in the second drainage channel to achieve drainage and heat dissipation.

[0038] It should be emphasized that, in the present embodiment, in order to achieve effective heat dissipation of the driving source 7 without affecting the water flow in the first drainage channel of the jet pump 1 and avoiding affecting the output power, the jet pump 1 also specifically arranges that the first drainage channel and the second drainage channel are not connected, and the two have independent water inlet and outlet.

[0039] like Figure 4 As shown, in the present embodiment, in order to ensure structural stability, ensure that the operation of the driving source 7 is not affected by the reaction force, and at the same time specifically improve the heat dissipation effect of the driving source 7, the jet pump 1 also limits the setting position of the deflector 3 and the driving source 7 arranged in its own pump body 2; wherein, in the present embodiment, the pump body 2 is provided with a accommodating cavity, and the accommodating cavity is divided into a first chamber 23 and a second chamber 24, wherein the first chamber 23 and the second chamber 24 can be respectively arranged along the length direction of the pump body 2, the driving source 7 is correspondingly arranged in the first chamber 23, and the deflector 3 is correspondingly arranged in the second chamber 24.

[0040] In actual application, the water outlet 32 of the above-mentioned deflector 3 can extend from one end of the pump body 2 away from the above-mentioned driving source 7 in the length direction, so that the driving source 7 can be as far away from the water outlet 32 of the above-mentioned deflector 3 as possible to avoid vibration caused by the impact of water flow at the water outlet 32, which affects the stable operation of the driving source 7.

[0041] Accordingly, in the present embodiment, the drain port 22 provided in the second drain channel can also be arranged as far away from the above-mentioned driving source 7 as possible to avoid affecting the operation of the driving source 7; at the same time, it can also reserve a second drain channel space of a sufficiently long size in the pump body 2, so as to control the water flow rate in the second drain channel and ensure the stability of the jet pump 1 in practical application. Therefore, in the present embodiment, the above-mentioned first chamber 23 and the second chamber 24 are specifically arranged to be connected to each other, and some through holes can be preset between the two to establish a connection relationship, and the water inlet 21 of the second drain channel is connected to the first chamber 23, and the drain port 22 of the second drain channel is connected to the second chamber 24, so as to reserve a sufficient distance between the water inlet 21 and the drain port 22, so that the water flow in the second drain channel can better take away the heat of the driving source 7.

[0042] It should be noted that if Figure 3 As shown, in order to ensure that the water flow can enter the first drainage channel and the second drainage channel from the water inlet 31 of the deflector 3 and the water inlet 21 of the pump body 2 respectively when the jet pump 1 is working normally, in the present embodiment, the water inlet 31 of the deflector 3 is specifically arranged to extend from the lower bottom surface of the pump body 2, and the water inlet 21 of the pump body 2 is opened on the lower bottom surface of the pump body 2, so that when the jet pump 1 is actually installed on the surfboard 8 or ship equipment, the water inlet 31 and the water inlet 21 can be immersed in water.

[0043] Meanwhile, in the jet pump 1 of the present invention, it is difficult to ensure the water area environment during actual application. There may be a lot of garbage on the water area, and this garbage may block the above-mentioned first drainage channel or the second drainage channel. Therefore, during actual application, a filter screen 4 can be provided at the water inlet 31 of the flow guide cover 3 and / or the water inlet 21 of the pump body 2 to filter out garbage with larger external dimensions by using the filter screen 4 to ensure the normal use of the jet pump 1. For example: as Figure 3 shown, in this embodiment, a filter screen 4 is provided at the inlet of the flow guide cover 3. The filter screen 4 can be detachably connected to the flow guide cover 3 or the pump body 2 to facilitate subsequent replacement or cleaning by the user.

[0044] Of course, in this embodiment, although no filter screen 4 is provided at the water inlet 21 of the pump body 2, a baffle is provided inside the pump body 2. The baffle is arranged at a preset interval in the vertical height direction from the water inlet 21 of the pump body 2 to prevent the water flow in the water area from directly entering the first chamber 23, that is, the baffle can block the water flow to a certain extent and deflect the water flow. For example: in this embodiment, the vertically upward flowing water flow will be blocked and deflected by the above-mentioned baffle, so as to reduce the flow rate and change the flow direction of the water flow entering the first chamber 23 to prevent the water flow from impacting the drive source 7 in the first chamber 23. Of course, in some preferred embodiments, the size of the water inlet 21 of the pump body 2 can also be limited by using the baffle to prevent large-sized garbage from entering the pump body 2.

[0045] See Figure 4 , in this embodiment, in order to effectively output water flow, a propeller assembly 5 is also provided in the flow guide cover 3 of the jet pump 1, that is, the propeller assembly 5 is specifically arranged in the first drainage channel. The output shaft 71 of the above-mentioned drive source 7 can extend into the flow guide cover 3 and be connected to the above-mentioned propeller assembly 5 to drive the propeller assembly 5 to rotate, so as to generate a rotating water flow by using the rotation of the propeller assembly 5 and spray it out from the water outlet 32 of the first drainage channel to generate a reaction force to push the jet pump 1 to move on the water area.

[0046] At this time, when the above-mentioned jet pump 1 moves on the water area, affected by the movement of the jet pump 1, the water inlet 21 of the second drainage channel immersed in the water will automatically intake water, so that the water flow flows into the second drainage channel and takes away the heat of the drive source 7 to achieve the heat dissipation effect on the drive source 7.

[0047] Among them, it should be particularly emphasized that in order to prevent the water flow in the fairing 3 from flowing into the second drainage channel when the output shaft 71 of the above driving source 7 extends into the fairing 3, in actual application, the connection between the two can be sealed. Of course, the output shaft 71 of the driving source 7 may not extend into the fairing 3, and it may be detachably connected to the rotating rod 72 extending from the fairing 3, for example: a fitting connection. The rotating rod 72 is provided with a propeller assembly 5 to drive the rotation of the propeller assembly 5 while facilitating the subsequent disassembly of the propeller assembly 5 and the rotating rod 72 for maintenance.

[0048] Correspondingly, referring to Figure 7 the content shown, in the jet pump 1 designed by the present invention, a fairing 6 is further provided, and the fairing 6 can be detachably connected to the water outlet 32 of the fairing 3; among them, a plurality of fins 61 are provided in the fairing 6, and these fins 61 are used to rectify the rotating water flow into a linear water flow. The reason for setting the fairing 6 is that the water flow driven by the rotation of the propeller assembly 5 is specifically a rotating water flow, and its application effect is not good; the fins 61 in the fairing 6 can rectify the rotating water flow into a linear water flow to ensure that the water flow quickly discharges from the fairing 6 and achieve a better kinetic energy output effect.

[0049] And, referring to Figure 8 the content shown, the jet pump 1 designed by the present invention can be effectively applied to a surfboard 8. The driving source 7 of the jet pump 1 can be specifically selected as an electric motor, and the output shaft 71 of the electric motor extends into the fairing 3 and is connected to the propeller assembly 5 in the fairing 3, so as to drive the propeller assembly 5 to rotate around the axis of the output shaft 71 to drive the water flow to spray out from the water outlet 32 of the fairing 3 to generate a reaction force. A battery pack can be specifically provided on the surfboard 8, and the jet pump 1 is provided with a power input interface 11 for electrically connecting to the battery pack (referring to Figure 2 the content shown) to supply power to the jet pump 1 of the present invention by using the above battery pack to ensure the normal operation of the electric motor as the driving source 7.

[0050] Of course, in actual application, the above jet pump 1 of the present invention can also be specifically installed on a ship, a sea jet ski or other water sports equipment to use the above jet pump 1 as a core power output mechanism for power output. The present invention does not make special limitations on the specific application scenarios of the jet pump 1, and users can select according to actual needs.

[0051] In addition, it should also be noted that the jet pump 1 designed by the present invention also has the advantages of a compact structure and a small installation space. It can integrate the drive source 7, the propeller assembly 5, and the fairing 3 into the pump body 2 for assembly, so as to reduce the installation space of the jet pump 1 and ensure the structural compactness when it is subsequently installed on a surfboard 8 or other main body, providing conditions for installing a battery pack with a larger volume on the subsequent surfboard 8, thereby enabling the surfboard 8 to obtain a more lasting endurance.

[0052] In addition, it should also be noted that the jet pump 1 designed by the present invention can also be provided with an independent control module and a switch button 12. That is, the above control module can be arranged in the pump body 2 of the jet pump 1 to control the start and stop of the drive source 7. For example, the start and stop of the motor. That is, in actual application, each jet pump 1 can be independently controlled. It does not need to arrange the control module on an external main body. It adopts a modular design, the jet pump 1 has strong versatility and wide applicability.

[0053] As can be seen from the above, the use of the jet pump 1 designed by the present invention can greatly improve the heat dissipation effect of the drive source 7 in the jet pump 1. It has very excellent drainage and heat dissipation performance, and can avoid the overheating problem caused by the long-term operation of the drive source 7, ensure the stable working temperature of the drive source 7, and then extend the service life and improve the use experience. It has good promotion prospects and application value.

[0054] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent transformations made by using the content of the specification and drawings of the present invention, directly or indirectly applied in the related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A jet pump, characterized in that, Comprising: A pump body, a flow guide cover disposed in the pump body, and a driving source. The water inlet and the water outlet of the flow guide cover extend out of the pump body respectively to form a first drainage channel. Wherein, a water inlet and a drainage outlet are formed on the pump body, and the water inlet, the drainage outlet and the pump body form a second drainage channel. The driving source is disposed in the second drainage channel, and the second drainage channel is not communicated with the first drainage channel.

2. The jet pump according to claim 1, characterized in that, A receiving cavity is provided in the pump body. The receiving cavity includes a first chamber and a second chamber arranged in sequence along the length direction of the pump body. Wherein, the driving source is disposed in the first chamber, and the flow guide cover is disposed in the second chamber.

3. The jet pump according to claim 2, characterized in that, The first chamber and the second chamber are communicated with each other, the water inlet is communicated with the first chamber, and the drainage outlet is communicated with the second chamber.

4. The jet pump according to claim 1, characterized in that, The water inlet of the flow guide cover extends out of the lower bottom surface of the pump body, and the water inlet is formed on the lower bottom surface of the pump body.

5. The jet pump according to claim 1, characterized in that, A filter screen is provided at the water inlet of the flow guide cover and / or at the water inlet.

6. The jet pump according to claim 1, characterized in that, The water outlet of the flow guide cover extends out of one end of the pump body far from the driving source in the length direction.

7. The jet pump according to claim 1, characterized in that, Further comprising a propeller assembly. The propeller assembly is disposed in the flow guide cover. The power output end of the driving source extends into the flow guide cover and is connected to the propeller assembly to drive the propeller assembly to rotate.

8. The jet pump according to claim 7, characterized in that, Further comprising a fairing. The fairing is detachably connected to the water outlet of the flow guide cover. Wherein, a plurality of fins are provided in the fairing, and the fins are used for rectifying the rotating flow of water into a linear flow of water.

9. A surfboard, characterized in that, The surfboard is provided with the jet pump according to any one of claims 1-8.

10. A ship, characterized in that, The ship is provided with the jet pump according to any one of claims 1-8.

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