Novel single-steering long shaft pump

Abstract

The utility model relates to the technical field of long shaft pumps, and discloses a novel single-steering long shaft pump which comprises a water pumping pipe, one end of the water pumping pipe is fixedly connected with a motor, the output end of the motor is fixedly connected with a transmission shaft through a first coupler, and every two adjacent transmission shafts are connected through a second coupler. The output end of the transmission shaft is fixedly connected with an impeller, the impeller is arranged in the water pumping pipe, a waterproof pipe is arranged outside the transmission shaft, one end of the waterproof pipe is connected with the water pumping pipe, and the other end of the waterproof pipe is arranged on the upper portion of the impeller. The problem that sewage erodes the transmission rod of the long-shaft pump and the joint of the transmission rod is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of long shaft pumps, specifically a novel single-steering long shaft pump. Background Technology

[0002] Long-shaft pumps are a variant of centrifugal pumps, and their working principle is based on the centrifugal force generated by the rotation of the impeller. When the pump starts, the motor drives the long shaft to rotate, which in turn drives the impeller to rotate. Fluid is drawn into the center of the impeller, and under the high-speed rotation of the impeller, the fluid gains a huge centrifugal force, thus being thrown out of the impeller, forming a continuous fluid flow. This converts mechanical energy into the pressure energy of the fluid, realizing the transportation of the fluid.

[0003] Long-shaft pumps typically consist of multiple segmented shafts and connecting components, and these connections are the weakest points in the overall pump structure. Under the influence of sewage corrosion, the metal materials of these connecting components will experience intergranular corrosion and pitting, leading to a significant decrease in the material's strength and toughness. Because long-shaft pumps are usually installed in inaccessible locations such as underground or underwater, routine inspection and maintenance are relatively difficult. If signs of sewage corrosion are not detected and addressed in time, these components may struggle to withstand normal mechanical stress and vibration, causing cracks and ultimately leading to breakage at the connections. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel single-direction long-shaft pump. By adding a waterproof pipe to the outside of the drive shaft, the drive shaft does not come into contact with sewage, thus solving the problem of sewage erosion of the drive rod and its connection points in the long-shaft pump.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel single-direction long-shaft pump includes a pumping pipe, one end of which is fixedly connected to a motor. The output end of the motor is fixedly connected to a drive shaft via a first coupling. Two adjacent drive shafts are connected via a second coupling. The output end of the drive shaft is fixedly connected to an impeller, which is disposed inside the pumping pipe.

[0009] A waterproof pipe is installed on the outside of the drive shaft. One end of the waterproof pipe is connected to the water pumping pipe, and the other end of the waterproof pipe is located on the upper part of the impeller. The waterproof pipe protects the drive shaft and the second coupling.

[0010] Preferably, an air inlet is fixedly connected to one side of the waterproof pipe, a blower is installed at one end of the air inlet, the air inlet passes through the water pumping pipe, and several air outlets are opened at the bottom of the waterproof pipe.

[0011] Preferably, a one-way valve is fixed to the outside of the air outlet, and the other end of the one-way valve is connected to a diversion chamber, the exhaust port of the diversion chamber being located inside the water pumping pipe.

[0012] Preferably, a waterproof joint is provided between two adjacent waterproof pipes.

[0013] Preferably, the waterproof connector includes a threaded connector, a threaded sleeve, a waterproof gasket, and a limiting block. A limiting block is provided on the outer side of one end of the waterproof pipe, and a threaded sleeve is fitted onto the outside of the waterproof pipe. A threaded connector is installed at one end of the other waterproof pipe, and the threaded connector is adapted to the threaded sleeve. The waterproof gasket is installed on one side of the limiting block.

[0014] Preferably, the water pumping pipe includes a straight pipe and an L-shaped pipe, and the straight pipe and the L-shaped pipe are fixedly connected by screws.

[0015] Preferably, in the novel single-steering long-shaft pump according to claim 1, the upper part of the L-shaped pipe is provided with a connecting pipe, the upper part of the connecting pipe is fixedly connected with a baffle, and the drive shaft passes through the baffle.

[0016] Preferably, a fixing device is provided between the straight pipe and the L-shaped pipe, and the fixing device is fixedly connected to the waterproof pipe.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a novel single-steering long-shaft pump, which has the following beneficial effects:

[0019] A novel single-direction long-shaft pump, during operation, features a waterproof pipe installed outside the drive shaft. The connection of the waterproof pipe is secured by a limit block on the outside of one end of the waterproof pipe. A threaded sleeve is fitted onto the outside of the waterproof pipe, and a threaded connector is installed at one end of the other waterproof pipe. The threaded connector is compatible with the threaded sleeve. A waterproof gasket is installed on one side of the limit block to prevent sewage from corroding the drive shaft and its connection.

[0020] Furthermore, during the pumping process, the blower is started, and the blower inflates the waterproof pipe. Under the action of the blower, the air pressure inside the waterproof pipe increases, and the gas is discharged through the air outlet into the one-way valve. It then enters the interior of the diversion chamber through the one-way valve, causing the gas to blow the water inside the pumping pipe through the diversion chamber. Since the outlet of the diversion chamber is opened upward, the flow of water is further enhanced. Attached Figure Description

[0021] Figure 1 This is a partial structural schematic diagram of the present invention.

[0022] Figure 2This is an enlarged structural diagram of point A in this utility model.

[0023] Figure 3 This is a partial cross-sectional view of the present invention.

[0024] Figure 4 This is an enlarged structural diagram of part B of the present invention.

[0025] Figure 5 This is a schematic diagram of the diversion compartment of this utility model.

[0026] In the diagram: 1. Pumping pipe; 11. Straight pipe; 12. L-shaped pipe; 121. Connecting pipe; 122. Baffle; 2. Motor; 21. First coupling; 22. Drive shaft; 23. Second coupling; 24. Impeller; 3. Waterproof pipe; 31. Waterproof joint; 311. Threaded joint; 312. Threaded sleeve; 313. Waterproof gasket; 314. Limiting block; 32. Blower; 33. Air outlet; 34. Air inlet; 4. Check valve; 41. Diverter compartment; 5. Fixing device. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0029] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0030] Furthermore, 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Example 1:

[0032] This embodiment provides a vacuum distillation apparatus for separation and purification, which has the following technical features.

[0033] Please see Figure 1-5 A novel single-direction long-shaft pump includes a pumping pipe 1, one end of which is fixedly connected to a motor 2. The output end of the motor 2 is fixedly connected to a drive shaft 22 via a first coupling 21. Two adjacent drive shafts 22 are connected via a second coupling 23. The output end of the drive shaft 22 is fixedly connected to an impeller 24, which is disposed inside the pumping pipe 1.

[0034] A waterproof pipe 3 is provided on the outside of the drive shaft 22. One end of the waterproof pipe 3 is connected to the water pumping pipe 1, and the other end of the waterproof pipe 3 is located on the upper part of the impeller 24. The waterproof pipe 3 protects the drive shaft 22 and the second coupling 23.

[0035] It should be noted that when the motor 2 starts, it drives the impeller 24 to rotate through the drive shaft 22, thereby drawing water upward inside the waterproof pipe 3. Since the drive shaft 22 is equipped with a waterproof pipe 3, water is prevented from entering the interior of the waterproof pipe 3, thus preventing water from corroding the drive shaft 22 and increasing the safety of the device.

[0036] In an optional embodiment, an air inlet 34 is fixedly connected to one side of the waterproof pipe 3, and a blower 32 is installed at one end of the air inlet 34. The air inlet 34 passes through the water pumping pipe 1, and several air outlets 33 are opened at the bottom of the waterproof pipe 3.

[0037] Furthermore, since the air inlet 34 is connected to the waterproof pipe 3, the air blower 32 inflates the inside of the waterproof pipe 3 and then discharges it from the air outlet 33 of the waterproof pipe 3, further ensuring that the inside of the waterproof pipe 3 is free of water.

[0038] In an optional embodiment, a one-way valve 4 is fixed to the outside of the air outlet 33, and the other end of the one-way valve 4 is connected to a diversion chamber 41, the exhaust port of the diversion chamber 41 being located inside the water pumping pipe 1.

[0039] Furthermore, the outlet of the diversion chamber 41 is opened upwards. By setting up a one-way valve 4, water is prevented from entering the interior of the waterproof pipe 3 through the diversion chamber 41. Meanwhile, the gas inside the waterproof pipe 3 is discharged into the diversion chamber 41 through the one-way valve 4. At the same time, the water inside the pumping pipe 1 can be blown through the diversion chamber 41. Since the outlet of the diversion chamber 41 is opened upwards, the flow of water is further enhanced.

[0040] In an optional embodiment, a waterproof joint 31 is provided between two adjacent waterproof pipes 3.

[0041] In an optional embodiment, the waterproof connector 31 includes a threaded connector 311, a threaded sleeve 312, a waterproof gasket 313, and a limiting block 314. The limiting block 314 is provided on the outer side of one end of the waterproof pipe 3, the threaded sleeve 312 is sleeved on the outside of the waterproof pipe 3, and the threaded connector 311 is installed on one end of the other waterproof pipe 3. The threaded connector 311 is adapted to the threaded sleeve 312, and the waterproof gasket 313 is installed on one side of the limiting block 314.

[0042] Furthermore, by setting the waterproof connector 31, the waterproof gasket 313 is placed inside the threaded sleeve 312, and then the end of the waterproof pipe 3 with the threaded connector 311 is placed on the end with the threaded sleeve 312, so that the threaded connector 311 presses against the waterproof gasket 313 on one side of the limiting block 314. Then, by rotating the threaded sleeve 312, the threaded sleeve 312 is fitted onto the threaded connector 311, thereby connecting the two waterproof pipes 3 and preventing water from entering the interior of the waterproof pipe 3.

[0043] In an optional embodiment, the water pump 1 includes a straight pipe 11 and an L-shaped pipe 12, which are fixedly connected by screws.

[0044] In an optional embodiment, a connecting pipe 121 is provided on the upper part of the L-shaped pipe 12, and a baffle 122 is fixedly connected to the upper part of the connecting pipe 121, with the drive shaft 22 passing through the baffle 122.

[0045] Furthermore, the highest point of the connecting pipe 121 is higher than the highest point of the pumping pipe 1 to prevent water from entering the connecting pipe 121 through the L-shaped pipe 12. The baffle 122 is also set to prevent water from being discharged through the connecting pipe 121 and causing damage to the motor 2.

[0046] In an optional embodiment, a retainer 5 is provided between the straight pipe 11 and the L-shaped pipe 12, and the retainer 5 is fixedly connected to the waterproof pipe 3.

[0047] Furthermore, the waterproof pipe 3 is fixed by the retainer 5. Since the drive shaft 22 is located inside the waterproof pipe 3, the drive shaft 22 is limited by the waterproof pipe 3.

[0048] Working principle: During installation, based on the height of the sump, the drive shaft 22 is connected to the corresponding length via the second coupling 23. Multiple waterproof pipes 3 are then passed through the drive shaft 22 sequentially. Finally, multiple L-shaped pipes 12, the fixing device 5, and the straight pipe 11 are installed together in sequence, ensuring their length matches the length of the drive shaft 22. The impeller 24 is installed at one end of the drive shaft 22, allowing the drive shaft 22 to rotate and drive the impeller 24. The motor 2 is then connected to the drive shaft 22 via the first coupling 21. The blower 32 is connected to the air inlet 34, completing the installation of the long-shaft pump. In use, the blower 3 is started first. 2. The blower 32 inflates the inside of the waterproof pipe 3. Under the action of the blower 32, the air pressure inside the waterproof pipe 3 increases. The gas is discharged through the air outlet 33 and enters the one-way valve 4. It then enters the interior of the diversion chamber 41 through the one-way valve 4. The gas blows the water inside the water pumping pipe 1 through the diversion chamber 41. Under the action of the one-way valve 4, water is prevented from entering the interior of the waterproof pipe 3 through the air inlet 34, thus ensuring that the interior of the waterproof pipe 3 is in a water-free state. The motor 2 is started. When the motor 2 is working, it drives the impeller 24 to rotate through the transmission shaft 22. The impeller 24 draws the water in the water pumping pit into the water pumping pipe 1 and discharges the water through the water pumping pipe 1.

[0049] In summary, during operation, a novel single-steering long-shaft pump utilizes a waterproof pipe 3 installed outside the drive shaft 22. A limiting block 314 is installed on the outer side of one end of the waterproof pipe 3 at its connection point. A threaded sleeve 312 is fitted onto the outside of the waterproof pipe 3. A threaded connector 311 is installed at one end of the other waterproof pipe 3, and the threaded connector 311 is compatible with the threaded sleeve 312. A waterproof gasket 313 is installed on one side of the limiting block 314 to prevent sewage from corroding the second coupling 23 of the drive shaft 22.

[0050] Furthermore, during the pumping process, the blower 32 is started. When the blower 32 is working, it inflates the waterproof pipe 3. Under the action of the blower 32, the air pressure in the waterproof pipe 3 increases. The gas is discharged through the air outlet 33 into the one-way valve 4, and then enters the interior of the diversion chamber 41 through the one-way valve 4. The gas blows the water inside the pumping pipe 1 through the diversion chamber 41. Since the outlet of the diversion chamber 41 is opened upward, it further increases the power of the water flow.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel single-direction long-shaft pump, comprising a pumping pipe (1), one end of which is fixedly connected to a motor (2), the output end of which is fixedly connected to a drive shaft (22) via a first coupling (21), two adjacent drive shafts (22) being connected via a second coupling (23), the output end of which is fixedly connected to an impeller (24), the impeller (24) being disposed inside the pumping pipe (1), characterized in that: A waterproof pipe (3) is provided on the outside of the drive shaft (22). One end of the waterproof pipe (3) is connected to the pumping pipe (1), and the other end of the waterproof pipe (3) is located on the upper part of the impeller (24). The waterproof pipe (3) protects the drive shaft (22) and the second coupling (23).

2. The novel single-steering long-shaft pump according to claim 1, characterized in that, An air inlet (34) is fixedly connected to one side of the waterproof pipe (3), and a blower (32) is installed at one end of the air inlet (34). The air inlet (34) passes through the water pumping pipe (1), and several air outlets (33) are opened at the bottom of the waterproof pipe (3).

3. A novel single-steering long-shaft pump according to claim 2, characterized in that, The air outlet (33) has an external fixed one-way valve (4), and the other end of the one-way valve (4) is connected to a diversion chamber (41). The exhaust port of the diversion chamber (41) is located inside the water pumping pipe (1).

4. A novel single-steering long-shaft pump according to claim 1, characterized in that, A waterproof joint (31) is provided between two adjacent waterproof pipes (3).

5. A novel single-steering long-shaft pump according to claim 4, characterized in that, The waterproof connector (31) includes a threaded connector (311), a threaded sleeve (312), a waterproof gasket (313), and a limiting block (314). A limiting block (314) is provided on the outer side of one end of the waterproof pipe (3). A threaded sleeve (312) is sleeved on the outside of the waterproof pipe (3). A threaded connector (311) is installed on one end of the other waterproof pipe (3). The threaded connector (311) is adapted to the threaded sleeve (312). The waterproof gasket (313) is installed on one side of the limiting block (314).

6. A novel single-steering long-shaft pump according to claim 1, characterized in that, The water pumping pipe (1) includes a straight pipe (11) and an L-shaped pipe (12), which are fixedly connected by screws.

7. A novel single-steering long-shaft pump according to claim 6, characterized in that, The upper part of the L-shaped tube (12) is provided with a connecting tube (121), and a baffle (122) is fixedly connected to the upper part of the connecting tube (121). The drive shaft (22) passes through the baffle (122).

8. A novel single-steering long-shaft pump according to claim 6, characterized in that, A fastener (5) is provided between the straight pipe (11) and the L-shaped pipe (12), and the fastener (5) is fixedly connected to the waterproof pipe (3).

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