Centrifugal pump using propeller for boosting

Abstract

The centrifugal pump comprises a base, the base is rotationally connected with a fixing plate through a rotating hinge, a connecting mechanism is arranged above the fixing plate, the inner wall of the base is connected with a second shell through a screw, and the inner wall of the second shell is connected with a screw. The inner wall of the second shell is fixedly connected with a water outlet, the inner wall of the second shell is provided with an internal thread, the inner wall of the base is movably connected with a first shell, the outer wall of the first shell is provided with a threaded connection part, a handle is welded to the front surface of the first shell, and the fixing plate is movably connected with the first shell. By means of the structure, the fixing plate and the base can be fixed and restrained through the clamping effect of the fixing handle, the clamping hook and the fixing block, meanwhile, movement of the first shell and the second shell is further fixed, and the movement stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-priming centrifugal pumps, in particular to a centrifugal pump with propeller power enhancement. Background Art

[0002] A propeller-assisted centrifugal pump is a centrifugal pump that uses a propeller to increase the kinetic energy of a liquid. Typically, a centrifugal pump accelerates the liquid and generates pressure by rotating an impeller, while a propeller is a device more commonly found in fields such as ships and wind turbines that rotates to generate propulsion or driving force. Combining a propeller with a centrifugal pump gives it the characteristics of high efficiency and large flow.

[0003] After searching, the applicant found that a Chinese patent disclosed a "centrifugal pump with propeller boost", and its publication (announcement) number is "CN207315723U". The patent mainly uses a centrifugal pump with propeller boost. The centrifugal pump has a centrifugal impeller, one end of the impeller has a shaft, the shaft has a shaft sealing unit, the other end of the impeller has a water inlet, and a propeller is at the water inlet. The impeller and the propeller are coaxial. The propeller has no central axis and is empty in the middle. Its propulsion blades are fixed on the outer circle. At the water inlet of the impeller, the propulsion blades are rigidly connected to the impeller. In the method of using a centrifugal pump with propeller boost, when the impeller rotates, the propeller is driven to rotate synchronously, and the water is pushed by two-stage boost. The first stage is that the propeller's blades rotate in the water, converting the rotational force into propulsion force. The propeller blades continuously push water to the water inlet of the impeller, and the thrust direction is parallel to the axis; the water entering the impeller in the second stage is accelerated and pushed out by the centrifugal force of the impeller, and the thrust direction is the tangent direction of the impeller circumference. It can improve efficiency, increase flow rate and increase lift.

[0004] However, this structure is relatively fixed and needs to be disassembled and installed or transported, which is time-consuming and laborious. At the same time, the structure is prone to clogging and scaling when used for a long time. It is inconvenient to disassemble and cannot be quickly disassembled, cleaned, and maintained. For this reason, we propose a centrifugal pump with propeller booster that is easy to disassemble and maintain. Utility Model Content

[0005] The utility model aims to provide a centrifugal pump with propeller booster to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, a centrifugal pump with propeller power boost is provided, the centrifugal pump with propeller power boost includes a base, the base is rotatably connected to a fixed plate by a rotating hinge, a connecting mechanism is arranged above the fixed plate, the inner wall of the base is connected to a second shell by screws, the inner wall of the second shell is fixedly connected to a water outlet, the inner wall of the second shell is provided with an internal thread, the inner wall of the base is movably connected to a first shell, the outer wall of the first shell is provided with a threaded connection, a handle is welded on the front surface of the first shell, and the fixed plate is movably connected to the first shell.

[0007] Preferably, a mounting hole is provided on the inner wall of the rear side of the second housing, and the main shaft is rotatably connected in the mounting hole. The main shaft is provided to facilitate the use of a motor to drive the rotation.

[0008] Preferably, an impeller is fixedly connected to the outer wall of the main shaft, and a propeller blade is connected to the outer wall of the main shaft. The propeller is provided so that the centrifugal pump with propeller power can drive the propeller by utilizing the flow of liquid, thereby saving energy costs.

[0009] Preferably, the connection mechanism comprises: a fixed handle, a fixed seat, a hook, a connecting shaft, and a fixed block, the lower part of the fixed handle is cam-shaped, and the inner wall of the fixed block is provided with a cam groove suitable for the fixed handle. The fixed handle is provided to facilitate manual unlocking.

[0010] Preferably, the fixed handle is fixedly connected to the outer wall of the connecting shaft, and the outer wall of the fixed block is provided with a groove adapted to the shape of the hook.

[0011] Preferably, the fixing seat is fixedly connected to the upper surface of the base, and the fixing block is fixedly connected to the upper surface of the base.

[0012] Preferably, the connecting shaft is rotatably connected to the inner wall of the fixing seat, and the hook is rotatably connected to the outer wall of the connecting shaft.

[0013] The present application includes the following beneficial technical effects: by setting a threaded connection, the internal thread can connect the first shell and the second shell through a thread, thereby facilitating disassembly with a handle; by setting a rotating hinge, the fixed plate can be easily rotated; by setting a connecting mechanism, the fixing handle, the hook, and the fixing block can be used to achieve fixed constraints on the fixed plate and the base, and at the same time, it is also for further fixing the movement of the first shell and the second shell to improve the stability of the movement of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the main schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the connecting mechanism in the utility model.

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0017] Figure 4 It is an exploded view of the utility model.

[0018] Figure 5 It is a schematic diagram of one side of the propeller of the utility model.

[0019] The symbols in the figure are:

[0020] 1. Base; 2. Connecting mechanism; 21. Fixed handle; 22. Fixed seat; 23. Hook; 24. Connecting shaft; 25. Fixed block; 3. Fixed plate; 4. Rotating hinge; 5. First shell; 6. Handle; 7. Water outlet; 8. Second shell; 9. Threaded connection; 10. Internal thread; 11. Main shaft; 12. Impeller; 13. Propeller blades. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0022] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example:

[0024] Reference Figures 1 to 5The centrifugal pump with propeller booster according to the embodiment of the utility model comprises a base 1, the base 1 is rotatably connected with a fixing plate 3 through a rotating hinge 4, a connecting mechanism 2 is arranged above the fixing plate 3, the inner wall of the base 1 is connected with a second shell 8 through screws, the inner wall of the second shell 8 is fixedly connected with a water outlet 7, the inner wall of the second shell 8 is provided with an internal thread 10, the inner wall of the base 1 is movably connected with a first shell 5, the outer wall of the first shell 5 is provided with a threaded connection 9, a handle 6 is welded on the front surface of the first shell 5, the fixing plate 3 is movably connected with the first shell 5, a rubber cushion is arranged between the threaded connection 9 and the internal thread 10 to improve the sealing performance, a threaded through hole is arranged on the outer wall of the base 1, a driving assembly is connected to the outer wall of the main shaft 11, which can be an engine or a motor, a hose mounting hole is arranged on the outer wall of the first shell 5, and the hose is installed to input the liquid to be extracted.

[0025] A mounting hole is provided on the inner wall of the rear side of the second shell 8, and the main shaft 11 is rotatably connected in the mounting hole. The outer wall of the main shaft 11 is fixedly connected with the impeller 12, and the outer wall of the main shaft 11 is connected with the propeller blade 13. The connecting mechanism 2 includes: a fixed handle 21, a fixed seat 22, a hook 23, a connecting shaft 24, and a fixed block 25. The lower part of the fixed handle 21 is cam-shaped, and the inner wall of the fixed block 25 is provided with a cam groove suitable for the fixed handle 21. The fixed handle 21 is fixedly connected to the outer wall of the connecting shaft 24, and the outer wall of the fixed block 25 is provided with a groove adapted to the shape of the hook 23. The fixed seat 22 is fixedly connected to the upper surface of the base 1, and the fixed block 25 is fixedly connected to the upper surface of the base 1. The connecting shaft 24 is rotatably connected to the inner wall of the fixed seat 22, and the hook 23 is rotatably connected to the outer wall of the connecting shaft 24. A rubber pad is provided at the groove of the fixed block 25 to increase friction so that the hook 23 has a fixing effect even after being worn in time.

[0026] Working principle: When in use, water is sucked through the hose installed on the inner wall of the first shell 5. The water flow is brought into the inner wall of the second shell 8 by the rotation of the propeller blades 13 and the impeller 12 under the rotation of the main shaft 11, and then discharged from the water outlet 7, thereby achieving the effect of water absorption.

[0027] During regular maintenance, first hold the fixed handle 21 and rotate the fixed handle 21. The cam end of the fixed handle 21 is separated from the fixed block 25, and then the hook 23 is separated from the fixed block 25. Then the fixed plate 3 and the base 1 can be rotated, and then the first shell 5 is rotated by holding the two handles 6. Since it is a threaded connection, the first shell 5 and the second shell 8 can be separated. Then, the interior is cleaned with a water gun or a detergent, and then the above principle is used for installation, thereby solving the problem of internal scaling and blockage that is difficult to maintain.

[0028] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifugal pump with propeller boost, characterized in that: The centrifugal pump with propeller boost comprises a base (1), the base (1) is rotatably connected to a fixing plate (3) via a rotating hinge (4), a connecting mechanism (2) is arranged above the fixing plate (3), the inner wall of the base (1) is connected to a second shell (8) via screws, the inner wall of the second shell (8) is fixedly connected to a water outlet (7), the inner wall of the second shell (8) is provided with an internal thread (10), the inner wall of the base (1) is movably connected to a first shell (5), the outer wall of the first shell (5) is provided with a threaded connection (9), a handle (6) is welded to the front surface of the first shell (5), and the fixing plate (3) is movably connected to the first shell (5).

2. The centrifugal pump with propeller boost according to claim 1, characterized in that: A mounting hole is provided on the rear inner wall of the second shell (8), and the main shaft (11) is rotatably connected in the mounting hole.

3. The centrifugal pump with propeller boost according to claim 2, characterized in that: An impeller (12) is fixedly connected to the outer wall of the main shaft (11), and a propeller blade (13) is connected to the outer wall of the main shaft (11).

4. The centrifugal pump with propeller boost according to claim 1, characterized in that: The connecting mechanism (2) comprises: a fixed handle (21), a fixed seat (22), a hook (23), a connecting shaft (24), and a fixed block (25); the lower part of the fixed handle (21) is cam-shaped, and the inner wall of the fixed block (25) is provided with a cam groove suitable for the fixed handle (21).

5. The centrifugal pump with propeller boost according to claim 4, characterized in that: The fixed handle (21) is fixedly connected to the outer wall of the connecting shaft (24), and the outer wall of the fixed block (25) is provided with a groove in the shape of an adaptable hook (23).

6. The centrifugal pump with propeller boost according to claim 4, characterized in that: The fixing seat (22) is fixedly connected to the upper surface of the base (1), and the fixing block (25) is fixedly connected to the upper surface of the base (1).

7. The centrifugal pump with propeller boost according to claim 4, characterized in that: The connecting shaft (24) is rotatably connected to the inner wall of the fixing seat (22), and the hook (23) is rotatably connected to the outer wall of the connecting shaft (24).

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