Double-suction non-sealing self-sucking pump

Abstract

The utility model discloses a double-suction sealing-free self-sucking pump which comprises a pump body, a water inlet end is fixedly arranged on one side of the surface of the pump body, a water outlet end is arranged on the side, away from the water inlet end, of the pump body, a flow dividing mechanism is arranged on one side of the water inlet end, and the flow dividing mechanism comprises a flow dividing bin, a rotating shaft, a guide plate, an electric push rod and a rotating arm. A flow dividing bin is arranged on one side of the water inlet end, a rotating shaft is movably arranged in the middle of the inner side of the flow dividing bin through a bearing, and a guide plate is fixedly arranged on the outer side surface of the rotating shaft. The double-suction sealing-free self-sucking pump is good in using effect, the flow dividing mechanism is arranged at the liquid inlet end of a traditional double-suction sealing-free self-sucking pump, the flow channel on one side can be closed at any time when needed, water can enter the flow channel on one side at the moment, the filter element of the flow channel on the other side can be detached, replaced and cleaned, and therefore the overall water pumping efficiency of the device cannot be affected; therefore, the use effect of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of spindle support structure technology, specifically a double-suction, seal-free self-priming pump. Background Technology

[0002] A seal-less, self-priming pump is a power device used for water conveyance. It primarily relies on the pump's own action to draw water up. The pump chamber contains a liquid storage chamber and a gas-liquid separation chamber. Before the pump starts, there is a certain amount of liquid inside the pump body. After the pump starts, due to the rotation of the impeller, the air in the intake pipe is fully mixed with the liquid inside the pump body and then discharged into the gas-liquid separation chamber. The air in the gas-liquid separation chamber escapes from the top, while the liquid returns to the impeller inlet from the bottom. The remaining air in the intake pipe is mixed again and continues to circulate until the air in the intake pipe is discharged and self-priming is completed.

[0003] Double-suction seal-less self-priming pumps are an important type of seal-less self-priming centrifugal pump, widely used in engineering due to their high head and large flow rate. The impeller of this type of pump is actually composed of two back-to-back impellers, with the water flowing out of the impellers converging into a single volute. Double-suction pumps have the following characteristics: they are equivalent to two single-suction impellers of the same diameter working simultaneously, doubling the flow rate for the same impeller outer diameter; the pump casing is horizontally split, facilitating inspection and maintenance; the inlet and outlet of the double-suction pump are in the same direction and perpendicular to the pump shaft, which is beneficial for the arrangement and installation of the pump and inlet / outlet pipes; the impeller structure of the double-suction pump is symmetrical, with no axial force, resulting in smoother operation.

[0004] In existing technologies, such double-suction sealless self-priming pumps can double the flow rate with the same impeller outer diameter. The large suction volume makes the filter element at the inlet very easy to clog, especially when working in complex waters. Once the filter element is clogged, replacing or cleaning it will affect the working efficiency of the entire equipment. Therefore, a double-suction sealless self-priming pump is needed to address this problem. Utility Model Content

[0005] The purpose of this invention is to provide a double-suction, seal-free self-priming pump to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-suction, seal-free self-priming pump, comprising a pump body, an inlet end fixedly disposed on one side of the pump body surface, an outlet end disposed on the side of the pump body away from the inlet end, a diversion mechanism disposed on one side of the inlet end, the diversion mechanism comprising a diversion chamber, a rotating shaft, a guide plate, an electric push rod, and a rotating arm, the diversion chamber disposed on one side of the inlet end, the rotating shaft being movably disposed in the middle of the inner side of the diversion chamber via a bearing, the guide plate being fixedly disposed on the outer surface of the rotating shaft, the electric push rod being disposed on the surface of the diversion chamber, the rotating arm being fixedly disposed at one end of the rotating shaft, the movable end of the electric push rod being movably connected to the rotating arm via the rotating shaft, and a connecting pipe being disposed on one side of the diversion chamber.

[0007] Preferably, a fixing block is fixedly installed on one side of the diversion chamber surface, and a connecting shaft is movably installed on the inner side of the fixing block via a bearing. The end of the connecting shaft near the electric push rod is movably connected to the electric push rod. The rotatable connecting shaft facilitates the retraction of the electric push rod to cooperate with the rotating arm to drive the rotating shaft to rotate, thereby driving the guide plate to rotate. When the guide plate rotates and contacts the sealing strip, it can block one side of the connecting pipe. When the guide plate is in the middle of the diversion chamber, both sides of the connecting pipe can be connected.

[0008] Preferably, a sealing strip is fixedly provided on the inner side wall of the diversion chamber. When the guide plate and the sealing strip on one side are tightly fitted, the connecting pipe on that side can be sealed, thereby preventing water from flowing through.

[0009] Preferably, a connecting flange is provided between the diversion chamber and the water inlet. The connecting flange allows for easy fixed connection between the diversion chamber and the water inlet, and can also be disassembled at any time when needed, thus facilitating the overall inspection and maintenance of the device.

[0010] Preferably, a filter element is provided at the end of the connecting pipe away from the diversion chamber. The filter element (not shown in the figure) can be used to filter the water flowing into the connecting pipe. When the filter element needs to be cleaned, since the device has two connecting pipes, there are two filter elements. One can be cleaned first while ensuring that the other can still receive water normally. This will not affect the overall pumping efficiency of the device, thereby improving the performance of the device.

[0011] Preferably, a drive shaft is movably mounted in the middle of the pump body via a bearing. The drive shaft can be easily connected to an electric motor, thereby driving the impellers on both sides inside the pump body to rotate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When the filter element needs cleaning, this device has two connecting pipes, which means there are two filter elements. One can be cleaned first while ensuring that the other can still receive water normally. This will not affect the overall pumping efficiency of the device, thereby improving its performance.

[0014] When cleaning a particular side of the filter element is required, the electric push rod extends or retracts to bring the guide plate into contact with the sealing strip on one side, thereby forming a seal between the guide plate and the sealing strip. This ensures that the connecting pipe on that side is sealed, thus preventing water from flowing through. As such, this device is easy to operate and can be widely used. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a double-suction, seal-free self-priming pump according to the present invention;

[0016] Figure 2 This is a cross-sectional view of the overall structure of a double-suction, seal-free self-priming pump according to this utility model;

[0017] Figure 3 This is a side view of the overall structure of a double-suction, seal-free self-priming pump according to this utility model.

[0018] In the diagram: 1. Pump body; 2. Inlet end; 3. Outlet end; 4. Diverter chamber; 5. Rotating shaft; 6. Guide plate; 7. Electric push rod; 8. Rotating arm; 9. Fixing block; 10. Connecting shaft; 11. Sealing strip; 12. Connecting flange; 13. Drive shaft; 14. Connecting pipe. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3This utility model provides a technical solution: a double-suction, seal-free self-priming pump, including a pump body 1. A water inlet end 2 is fixedly provided on one side of the surface of the pump body 1, and a water outlet end 3 is provided on the side of the pump body 1 away from the water inlet end 2. A diversion mechanism is provided on one side of the water inlet end 2. The diversion mechanism includes a diversion chamber 4, a rotating shaft 5, a guide plate 6, an electric push rod 7, and a rotating arm 8. The diversion chamber 4 is provided on one side of the water inlet end 2. The rotating shaft 5 is movably provided in the middle of the inner side of the diversion chamber 4 through a bearing. The guide plate 6 is fixedly provided on the outer surface of the rotating shaft 5. The electric push rod 7 is provided on the surface of the diversion chamber 4. The rotating arm 8 is fixedly provided at one end of the rotating shaft 5. The movable end of the electric push rod 7 is movably connected to the rotating arm 8 through a rotating shaft. A connecting pipe 1414 is provided on one side of the diversion chamber.

[0021] A fixing block 9 is fixedly installed on one side of the surface of the diversion chamber 4. A connecting shaft 10 is movably installed on the inner side of the fixing block 9 through a bearing. The end of the connecting shaft 10 near the electric push rod 7 is movably connected to the electric push rod 7. The rotatable connecting shaft 10 facilitates the retraction of the electric push rod 7 to cooperate with the rotating arm 8 to drive the rotating shaft 5 to rotate, thereby driving the guide plate 6 to rotate. When the guide plate 6 rotates and contacts the sealing strip 11, it can block one side of the connecting pipe 14. When the guide plate 6 is in the middle of the diversion chamber 4, both sides of the connecting pipe 14 can be connected.

[0022] A sealing strip 11 is fixedly installed on the inner side wall of the diversion chamber 4. When the guide plate 6 and the sealing strip 11 on one side are tightly fitted, the connecting pipe 14 on this side can be sealed, thereby preventing water from flowing through.

[0023] A connecting flange 12 is provided between the diversion chamber 4 and the water inlet 2. The diversion chamber 4 and the water inlet 2 can be easily fixedly connected by the connecting flange 12, and can also be disassembled at any time when needed; so as to facilitate the inspection and maintenance of the whole device.

[0024] A filter element is provided at the end of the connecting pipe 14 away from the diversion chamber 4. The water flowing into the connecting pipe 14 can be easily filtered through the filter element (not shown in the figure). When the filter element needs to be cleaned, since this device has two connecting pipes 14, there are two filter elements. One can be cleaned first while ensuring that the other can still receive water normally. This will not affect the overall pumping efficiency of the device, thereby improving the performance of the device.

[0025] A drive shaft 13 is movably mounted in the middle of the pump body 1 via a bearing. The drive shaft 13 can be easily connected to an electric motor, thereby driving the impellers on both sides inside the pump body 1 to rotate.

[0026] Working principle: When using this device, the water entering the pump body 1 can be filtered through the filter element at one end of the connecting pipe 14. When the guide plate 6 is in the middle of the diversion chamber 4 during the initial use of this device, both connecting pipes 14 on both sides can be connected.

[0027] When the filter needs to be cleaned, this device has two connecting pipes 14, which means there are two filter elements. One can be cleaned first while ensuring that the other can still receive water normally. This will not affect the overall pumping efficiency of the device, thereby improving the performance of the device.

[0028] When a filter element on one side needs to be cleaned, the electric push rod 7 extends or retracts to bring the guide plate 6 into contact with the sealing strip 11 on one side, thereby forming a seal between the guide plate 6 and the sealing strip 11. This ensures that the connecting pipe 14 on that side is sealed, thus preventing water from flowing through. This device is easy to operate and can be widely used.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0030] 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 double-suction, seal-free self-priming pump, comprising a pump body (1), characterized in that: A water inlet end (2) is fixedly provided on one side of the surface of the pump body (1), and a water outlet end (3) is provided on the side of the pump body (1) away from the water inlet end (2). A diversion mechanism is provided on one side of the water inlet end (2). The diversion mechanism includes a diversion chamber (4), a rotating shaft (5), a guide plate (6), an electric push rod (7), and a rotating arm (8). A diversion chamber (4) is provided on one side of the water inlet end (2). A rotating shaft (5) is movably provided in the middle of the inner side of the diversion chamber (4) through a bearing. A guide plate (6) is fixedly provided on the outer surface of the rotating shaft (5). An electric push rod (7) is provided on the surface of the diversion chamber (4). A rotating arm (8) is fixedly provided at one end of the rotating shaft (5). The movable end of the electric push rod (7) is movably connected to the rotating arm (8) through a rotating shaft. A connecting pipe (14) is provided on one side of the diversion chamber.

2. The double-suction, seal-free self-priming pump according to claim 1, characterized in that: A fixing block (9) is fixedly installed on one side of the surface of the diversion chamber (4). A connecting shaft (10) is movably installed on the inner side of the fixing block (9) through a bearing. The end of the connecting shaft (10) near the electric push rod (7) is movably connected to the electric push rod (7).

3. The double-suction, seal-free self-priming pump according to claim 1, characterized in that: A sealing strip (11) is fixedly installed on the inner side wall of the diversion chamber (4).

4. The double-suction, seal-free self-priming pump according to claim 1, characterized in that: A connecting flange (12) is provided between the diversion chamber (4) and the inlet end (2).

5. A double-suction, seal-free self-priming pump according to claim 1, characterized in that: A filter element is provided at the end of the connecting pipe (14) away from the diversion chamber (4).

6. A double-suction, seal-free self-priming pump according to claim 1, characterized in that: A drive shaft (13) is movably mounted in the middle of the pump body (1) via a bearing.

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