Spray pump propeller

Abstract

The utility model discloses a spray pump propeller which comprises a main body frame, a spiral propeller, a shunting device and a driving device, the main body frame comprises a support frame and a sealed cabin; the shunting device and the sealed cabin are respectively arranged on two sides of the support frame; a plurality of rectangular water inlets are formed in the side, close to the sealed cabin, of the supporting frame; the spiral propeller is arranged on one side of the supporting frame, and the driving device is arranged in the sealed cabin; the spiral propeller comprises a spiral blade, a transmission rod and a first bevel gear; the spiral blade is fixedly wound on the transmission rod; the first bevel gear is fixedly arranged at the end, away from the spiral blade, of the transmission rod. One end of the transmission rod is positioned in the support frame, and the other end penetrates through the support frame and extends into the sealed cabin; the spiral blade is located in the supporting frame and located on one side of the water inlet; according to the self-cleaning water inlet device, self-cleaning can be carried out on blockage of the water inlet, and the utilization efficiency of a motor of the self-cleaning water inlet device is higher.

Description

Technical Field

[0001] This utility model relates to the field of underwater propulsion, and in particular to a jet pump propulsion device. Background Technology

[0002] A waterjet propulsion system is a type of propulsion device in which the jetting part of the propulsion mechanism is immersed in water, and the reaction force generated by the jetting water propels the ship forward.

[0003] A search revealed Chinese patent number CN 208069990 U, which discloses a jet pump propulsion device for underwater operation. This device utilizes multiple water inlets distributed around the rear cover's sidewall to guide water into the rear cover's inner cavity. Even if a single water inlet becomes blocked, it will not affect the jet pump propulsion's ability to spray water, thus improving the reliability of the jet pump propulsion.

[0004] However, manual cleaning is still required when the water inlet becomes clogged. After prolonged use, there is still a risk of complete blockage even with multiple water inlets. Furthermore, the propulsion device is directly connected to the motor to transmit power. This method causes the propulsion device to rely entirely on the power of the motor to work, which does not allow the motor to be used to its full potential.

[0005] Therefore, in response to the problems mentioned above, this utility model proposes a jet pump propulsion device to solve the aforementioned problems. Summary of the Invention

[0006] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0007] To achieve the above objectives, the first aspect of this utility model provides a jet pump propulsion device, comprising: a main frame, a helical propulsion device, a flow diversion device, and a drive device, wherein: the main frame comprises: a support frame and a sealed chamber, wherein: the flow diversion device and the sealed chamber are respectively disposed on both sides of the support frame; the support frame has multiple rectangular water inlets on the side near the sealed chamber; the helical propulsion device is disposed on one side of the support frame, and the drive device is disposed within the sealed chamber; the helical propulsion device comprises: helical blades, a transmission rod, and a first bevel gear, wherein: the helical blades are fixedly wound around the transmission rod; the first bevel gear is fixedly disposed on the end of the transmission rod away from the helical blades; one end of the transmission rod is located within the support frame, and the other end extends through the support frame into the sealed chamber; the helical blades are located inside the support frame and on the side of the water inlets; the first bevel gear is located within the sealed chamber and meshes with the output end of the drive device.

[0008] In addition, the jet pump propulsion device proposed above according to this utility model may also have the following additional technical features:

[0009] Furthermore, a flow-blocking plate is provided on the transmission rod, wherein the flow-blocking plate is fixedly installed on the transmission rod and can be attached to the bottom of the water inlet at one end.

[0010] Furthermore, a partition is provided inside the sealed chamber.

[0011] Further, the driving device includes: a motor and a second bevel gear, wherein: the motor is fixedly mounted in the sealed long chamber on one side of the partition by a mounting bracket, and the output end of the motor passes through the partition and extends to one side; the second bevel gear is fixedly mounted on the extended end of the motor, and the second bevel gear meshes with the first bevel gear; the second bevel gear is larger than the first bevel gear.

[0012] Furthermore, the diversion device includes a rear cover and a guide plate, wherein: the rear cover is fixedly disposed at the open end of the support frame, and the rear cover is conical, with its diameter gradually increasing from the open end toward the support frame; the guide plate is disposed perpendicularly to each other inside the rear cover and is located on one side of the transmission rod.

[0013] According to the present invention, the pump propeller can be driven by a drive device to drive the screw propeller to work, thereby generating thrust for forward movement. When the screw propeller is working, the baffle plate set on the transmission rod will rotate with the transmission rod in the support frame, thereby causing the debris attached to the water inlet to be removed from the water inlet. The present invention can clean the blocked water inlet, and the transmission through gears greatly improves the efficiency of the motor.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of a jet pump propulsion device according to an embodiment of the present invention;

[0017] Figure 2 This is a side view of a jet pump propulsion device according to an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional internal structure diagram of a jet pump propulsion device according to an embodiment of the present invention;

[0019] Figure 4This is a schematic diagram of the internal structure of the support frame of a jet pump propulsion device according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of a jet pump propulsion device according to an embodiment of the present invention, showing the baffle plate on the transmission rod.

[0021] As shown in the figure:

[0022] 1. Main frame; 11. Support frame; 111. Inlet; 12. Sealed chamber; 121. Partition; 2. Propeller; 21. Propeller blade; 22. Transmission rod; 221. Baffle plate; 23. First bevel gear; 3. Diverter; 31. Rear cover; 32. Guide plate; 4. Drive unit; 41. Motor; 42. Second bevel gear. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] The jet pump propulsion device of this utility model embodiment will now be described with reference to the accompanying drawings.

[0025] like Figures 1 to 5 As shown, the jet pump propulsion device of this utility model embodiment may include: a main frame 1, a helical propulsion device 2, a flow splitting device 3, and a drive device 4.

[0026] Specifically, the main frame 1 includes a support frame 11 and a sealed chamber 12.

[0027] It should be noted that the diversion device 3 and the sealed chamber 12 are respectively located on both sides of the support frame 11, the screw propeller 2 is located on one side of the support frame 11, and the drive device 4 is located inside the sealed chamber 12.

[0028] It should be further noted that a partition 121 is provided inside the sealed chamber 12, and multiple rectangular water inlets 111 are provided on the side of the support frame 11 near the sealed chamber 12.

[0029] Understandably, the support frame 11 provides support for its propeller 2, while the sealed chamber 12 can protect the drive unit 4 located therein from oxidation due to contact with water flow, and the drive unit 4 can provide power to its propeller 2 to enable it to work.

[0030] Furthermore, the bulkhead 121 can provide support for its drive unit 4 and further provide it with a seal, while the water inlet 111 provided on the support frame 11 allows water to flow into one side of the propeller 2, thereby generating a reaction force through the propeller 2 to drive the ship forward.

[0031] Specifically, the propeller 2 includes: a helical blade 21, a transmission rod 22, and a first bevel gear 23.

[0032] It should be noted that the spiral blade 21 is fixedly wound on the transmission rod 22, and the first bevel gear 23 is fixedly mounted on the end of the transmission rod 22 away from the spiral blade 21. One end of the transmission rod 22 is inside the support frame 11, and the other end extends through the support frame 11 into the sealed chamber 12. The spiral blade 21 is inside the support frame 11 and is located on the side of the water inlet 111. The first bevel gear 23 is inside the sealed chamber 12 and meshes with the output end of the drive device 4.

[0033] It should be further noted that a baffle plate 221 is provided on the transmission rod 22, wherein the baffle plate 221 is fixedly installed on the transmission rod 22, and one end can be attached to the bottom of the inlet 111.

[0034] It is understandable that, since the first bevel gear 23 meshes with the output end of its drive device 4, when the drive device 4 is started, it will rotate through the first bevel gear 23, thereby causing the spiral blade 21 set on the transmission rod 22 to rotate, and the water entering through its inlet 111 will be sprayed out from the opening of the support frame 11.

[0035] It can be further understood that when the transmission rod 22 rotates, the baffle plate 221 set on it will rotate together. When a certain inlet 111 is blocked, when the baffle plate 221 rotates to this position, the inlet 111 is no longer receiving water due to the influence of the baffle plate 221. Thus, the blocked debris is no longer subject to the suction force generated by the rotation of the spiral blade 21. As a result, the blocked debris is affected by the water flow generated by the forward movement of this utility model and falls off the inlet 111. Furthermore, the rotating baffle plate 221 can further prevent the debris from entering the support frame 11 and affecting the operation of the spiral blade 21.

[0036] Specifically, the drive device 4 includes: a motor 41 and a second bevel gear 42.

[0037] It should be noted that the motor 41 is fixedly mounted in the sealed chamber 12 on one side of the partition 121 via a mounting bracket, and the output end of the motor 41 extends through the partition 121 to one side. The second bevel gear 42 is fixedly mounted on the extended end of the motor 41, and the second bevel gear 42 meshes with the first bevel gear 23. The number of teeth of the second bevel gear 42 is greater than that of the first bevel gear 23. It can be understood that when the motor 41 starts, it drives the second bevel gear 42 mounted on its drive end to rotate. Because the second bevel gear 42 meshes with the first bevel gear 23, the rotating second bevel gear 42 drives the first bevel gear 23 to rotate, thereby rotating the transmission rod 22. Since the second bevel gear 42 is larger than the first bevel gear 23, the transmission ratio is increased, thus improving the working efficiency of the motor 41.

[0038] Specifically, the diversion device 3 includes a rear cover 31 and a guide plate 32.

[0039] It should be noted that the rear cover 31 is fixedly provided with the opening end of the support frame 11, and the rear cover 31 is conical, with its diameter gradually increasing from the opening end toward the support frame 11. The guide plates 32 are arranged perpendicularly to each other inside the rear cover 31 and are located on one side of the transmission rod 22.

[0040] Understandably, because the rear cover 31 is conical, it compresses the water flow transported by the spiral blades 21 and finally flows out from the opening of the rear cover 31 through the guide plate 32, thus generating greater thrust.

[0041] In summary, the jet pump propulsion device according to the present invention can self-clean its inlet 111 from blockage and make more efficient use of its motor 41.

[0042] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A jet pump propulsion device, characterized in that, include: The main frame (1), the propeller (2), the diversion device (3), and the drive device (4) are as follows; The main frame (1) includes: a support frame (11) and a sealed chamber (12), wherein; The diversion device (3) and the sealed chamber (12) are respectively arranged on both sides of the support frame (11); The support frame (11) has multiple rectangular water inlets (111) on the side near the sealed chamber (12); The propeller (2) is disposed on one side of the support frame (11), and the drive device (4) is disposed inside the sealed chamber (12); The propeller (2) includes: a helical blade (21), a transmission rod (22), and a first bevel gear (23), wherein; The spiral blade (21) is fixedly wound around the transmission rod (22); The first bevel gear (23) is fixedly mounted on the end of the transmission rod (22) away from the helical blade (21); One end of the transmission rod (22) is located inside the support frame (11), and the other end extends through the support frame (11) into the sealed chamber (12); The spiral blade (21) is located inside the support frame (11) and on one side of the water inlet (111); The first bevel gear (23) is located inside the sealed chamber (12) and meshes with the output end of the drive device (4).

2. The jet pump propulsion device according to claim 1, characterized in that, A flow-blocking plate (221) is provided on the transmission rod (22), wherein the flow-blocking plate (221) is fixedly provided on the transmission rod (22), and one end can be attached to the bottom of the water inlet (111).

3. The jet pump propulsion device according to claim 1, characterized in that, The sealed chamber (12) is equipped with a partition (121).

4. A jet pump propulsion device according to claim 3, characterized in that, The drive device (4) includes: a motor (41) and a second bevel gear (42), wherein; The motor (41) is fixedly installed in the sealed chamber (12) on one side of the partition (121) by a mounting bracket, and the output end of the motor (41) passes through the partition (121) and extends to one side; The second bevel gear (42) is fixedly mounted on the extension end of the motor (41), and the second bevel gear (42) meshes with the first bevel gear (23); The second bevel gear (42) is larger than the first bevel gear (23).

5. A jet pump propulsion device according to claim 1, characterized in that, The diversion device (3) includes: a rear cover (31) and a guide plate (32), wherein; The rear cover (31) is fixedly mounted on the opening end of the support frame (11), and the rear cover (31) is conical, with its diameter gradually increasing from the opening end toward the support frame (11); The guide plates (32) are arranged perpendicularly to each other inside the rear cover (31) and are located on one side of the transmission rod (22).

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