Jet type self-priming centrifugal pump

Abstract

The utility model relates to the technical field of self-priming centrifugal pumps, in particular to a jet type self-priming centrifugal pump which comprises a driving part, a transfer mechanism arranged on the driving part, a pressure reduction and drainage mechanism arranged in the transfer mechanism and a turbine water suction mechanism arranged in the pressure reduction and drainage mechanism. The transfer mechanism comprises an outer bin and a sealing column head movably installed in a hole in the outer end of the outer bin. A bin body structure of a traditional integral structure is arranged to be the transfer mechanism and the pressure reduction and drainage mechanism which are of a quick-assembly structure, and the turbine water absorption mechanism capable of being passively separated is arranged in the pressure reduction and drainage mechanism, so that when the pump body is used for a long time and clogging or impeller damage exists, the turbine water absorption mechanism can be quickly separated from a transmission shaft in a motor, and the pump body is prevented from being damaged. At the moment, the pressure reducing and water draining mechanism can quickly take out the separated turbine water absorbing mechanism, and at the moment, the device can clean and quickly maintain all structures of the impeller and the inner cavity of the pump body without tedious loading and unloading operation.

Description

Technical Field

[0001] This utility model relates to the field of self-priming centrifugal pump technology, specifically a jet-type self-priming centrifugal pump. Background Technology

[0002] The jet-type self-priming centrifugal pump is composed of a centrifugal pump and a jet pump (live ejector). This device relies on the jetting device to create a vacuum at the nozzle, thereby achieving the suction state.

[0003] Currently, the casing of jet-type self-priming centrifugal pumps is an integral structure. This type of casing has good sealing performance, but it also has certain defects. With the long-term use of the impeller inside the pump body, it is subject to wear from foreign objects in the water flow and accumulation of foreign objects in the pump body cavity. In severe cases, this can cause impeller failure and insufficient head pressure. To address this problem, the pump body assembly and disassembly procedures are extremely cumbersome, and maintenance is difficult.

[0004] In view of this, a jet-type self-priming centrifugal pump was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A jet-type self-priming centrifugal pump includes a drive component, a transfer mechanism mounted on the drive component, a pressure-reducing and drainage mechanism disposed within the transfer mechanism, and a turbine suction mechanism disposed within the pressure-reducing and drainage mechanism. The transfer mechanism includes an outer chamber and a sealing column movably installed in a hole at the outer end of the outer chamber. The pressure-reducing and drainage mechanism includes a sealing cover installed in a groove on the outer side of the outer chamber. The sealing cover has symmetrically distributed inlet and outlet chambers, and each inlet and outlet chamber has a filter screen. The turbine suction mechanism includes a shaft movably installed within the two filter screens. One end of the shaft has a pre-installation hole, and a rod is inserted into the pre-installation hole. An impeller is installed on the outside of the shaft.

[0008] In a preferred embodiment, the present invention can be further configured such that: a concave hole is provided at the other end of the shaft, and a through hole is provided in the middle of the shaft;

[0009] Furthermore, a lead screw is provided inside the through hole, one end of which is movably installed inside the insert rod, and the threaded section at the other end of the lead screw is adapted to penetrate into the concave hole;

[0010] A hexagonal pin is installed on the other end of the lead screw;

[0011] The shaft has a threaded hole inside that is adapted to engage with the threaded section of the lead screw.

[0012] In a preferred embodiment, the present invention can be further configured such that the pressure-reducing and water-draining mechanism also includes four overflow prevention plates, wherein two overflow prevention plates are disposed on the water inlet chamber and the other two overflow prevention plates are disposed on the drainage chamber.

[0013] Both the outer end of the water inlet chamber and the outer end of the drainage chamber are provided with annular grooves, and two washers are provided in the two annular grooves.

[0014] Both the inlet and outlet chambers are equipped with horizontal protective sleeves.

[0015] In a preferred embodiment, the present invention can be further configured such that the transfer mechanism also includes a clamp mounted on the outer chamber and a spring disposed between the clamp and the sealing column head;

[0016] Two symmetrically distributed sleeves are installed on the outer compartment;

[0017] One of the sleeves has an inlet pipe installed inside, and the other sleeve has a drain pipe installed inside.

[0018] In a preferred embodiment, the present invention can be further configured such that the transfer mechanism also includes two main rings and two auxiliary rings;

[0019] The inner sides of the two sub-rings are provided with slots for clamping the water inlet and the water outlet.

[0020] In a preferred embodiment, the present invention can be further configured such that the driving component includes a motor disposed on the outer compartment;

[0021] The outer end of the internal drive shaft of the motor is provided with a socket adapted to the insertion rod.

[0022] In a preferred embodiment, the present invention can be further configured such that the inner end of the water inlet pipe is adapted to penetrate into the interior of one of the sleeves;

[0023] The inner end of the drain pipe is adapted to penetrate into the interior of another sleeve;

[0024] The inner ends of the inlet and outlet pipes are flush with the inner ends of the two sleeves.

[0025] In a preferred embodiment, the present invention can be further configured such that the inner walls at both ends of the outer chamber are respectively provided with pre-installed insertion holes adapted to snap into the ports of the water inlet chamber and the water outlet chamber.

[0026] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0027] 1. This utility model transforms the traditional prefabricated housing structure into a quick-assembly transfer mechanism and a pressure-reducing and drainage mechanism. Inside the pressure-reducing and drainage mechanism, a passively separable turbine suction mechanism is installed. When the pump body is used for a long time and there is blockage or impeller damage, the turbine suction mechanism can be quickly separated from the internal drive shaft of the motor. At this time, the pressure-reducing and drainage mechanism can quickly remove the separated turbine suction mechanism. Thus, the device can clean and quickly maintain all the structures of the impeller and the pump body cavity without cumbersome loading and unloading operations. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0029] Figure 2 This utility model Figure 1 A schematic diagram of the dispersion;

[0030] Figure 3 This is a schematic diagram of the transfer mechanism of this utility model;

[0031] Figure 4 This is an exploded schematic diagram of the pressure-reducing and water-draining mechanism of this utility model;

[0032] Figure 5 This utility model Figure 4 Internal diagram;

[0033] Figure 6 This is a partial schematic diagram of the turbine water suction mechanism of this utility model.

[0034] Figure label:

[0035] 100. Drive component; 110. Motor; 120. Socket;

[0036] 200. Transfer mechanism; 210. Outer compartment; 220. Main ring; 230. Secondary ring; 240. Sealing head; 250. Clamp; 260. Spring; 270. Sleeve; 280. Inlet pipe; 290. Drain pipe;

[0037] 300. Pressure-reducing and drainage mechanism; 310. Sealing cover; 320. Water inlet chamber; 330. Drainage chamber; 340. Overflow plate; 350. Washer; 360. Filter screen; 370. Protective sleeve;

[0038] 400, turbine suction mechanism; 410, shaft; 420, impeller; 430, screw hole; 440, pre-installation hole; 450, insertion rod; 460, lead screw; 470, hexagonal spur head. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0040] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0041] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a jet-type self-priming centrifugal pump. Example 1

[0042] Combination Figures 1-6 As shown, the present invention provides a jet-type self-priming centrifugal pump, including a drive component 100, a transfer mechanism 200 disposed on the drive component 100, a pressure-reducing and drainage mechanism 300 disposed within the transfer mechanism 200, and a turbine suction mechanism 400 disposed within the pressure-reducing and drainage mechanism 300. The drive component 100 is used to provide kinetic energy to the turbine suction mechanism 400, the transfer mechanism 200 is used to provide a quick-release platform for the pressure-reducing and drainage mechanism 300, and the pressure-reducing and drainage mechanism 300 is used to provide a self-priming channel for the turbine suction mechanism 400.

[0043] The transfer mechanism 200 includes an outer chamber 210 and a sealing head 240 that is movably installed in an outer end hole of the outer chamber 210;

[0044] The drive unit 100 includes a motor 110 disposed on the outer compartment 210;

[0045] The pressure-reducing and drainage mechanism 300 includes four overflow plates 340 and a sealing cover 310 installed in the outer slot of the outer chamber 210. The sealing cover 310 has symmetrically distributed water inlet chambers 320 and drainage chambers 330 inside, and filter screens 360 are installed inside both water inlet chambers 320 and drainage chambers 330.

[0046] Two overflow baffles 340 are installed on the inlet chamber 320, and the other two overflow baffles 340 are installed on the drain chamber 330.

[0047] Both the outer end of the water inlet chamber 320 and the outer end of the drainage chamber 330 are provided with annular grooves, and two washers 350 are provided in the two annular grooves.

[0048] Both the inlet chamber 320 and the outlet chamber 330 are equipped with horizontally placed protective sleeves 370;

[0049] The turbine suction mechanism 400 includes a shaft 410 movably installed in two filter screens 360. One end of the shaft 410 is provided with a pre-installation hole 440, and a rod 450 is provided in the pre-installation hole 440. An impeller 420 is installed on the outside of the shaft 410.

[0050] The outer end of the internal drive shaft of the motor 110 is provided with a socket 120 adapted to the plug rod 450;

[0051] After the device is assembled, it needs to be tested in advance. By starting the motor 110, when the water flows in from the inlet pipe 280 and is released from the drain pipe 290, the sealing performance of the pump body structure cavity is tested by observing the output water head and water pressure. When the head is low and the water pressure is insufficient, the two gaskets 350 need to be replaced. At the same time, a sealing gasket can be installed between the two ports where the inlet chamber 320 and the drain chamber 330 meet.

[0052] After the test is completed, the socket wrench can be used to adjust the hexagonal head 470 to rotate clockwise until the screw 460 pushes the insertion rod 450 into the insertion hole 120. Then, the socket wrench is removed, and the motor 110 is started. At this time, the impeller 420 can perform self-priming of water in the closed cavity formed by the water inlet chamber 320 and the drainage chamber 330, while the two filters 360 can filter the dirt in the water flow during the drainage process.

[0053] By regularly cleaning the inner cavities of the inlet chamber 320 and the outlet chamber 330 to remove impurities and dirt, wear on the impeller 420 can be reduced, and the cost of subsequent pump maintenance can also be reduced. Example 2

[0054] Combination Figures 3-5 As shown, based on Embodiment 1, the transfer mechanism 200 also includes two main ring buckles 220 and two auxiliary ring buckles 230, a clamp 250 installed on the outer chamber 210, and a spring 260 disposed between the clamp 250 and the sealing column head 240.

[0055] Two symmetrically distributed sleeves 270 are installed on the outer compartment 210;

[0056] One of the sleeves 270 has an inlet pipe 280 installed inside, and the other sleeve 270 has a drain pipe 290 installed inside.

[0057] Preferably, the assembly of the inlet pipe 280 and the outlet pipe 290 with the two sheaths 370 can be configured with a sealing layer at the contact points between the inlet pipe 280, the outlet pipe 290 and the two sheaths 370 according to actual sealing requirements, thereby effectively improving the constant pressure of water input and water output.

[0058] The inner sides of the two secondary ring buckles 230 are provided with slots for clamping the water inlet chamber 320 and the drainage chamber 330;

[0059] The inner end of the inlet pipe 280 is adapted to penetrate into the interior of one of the sleeves 270;

[0060] The inner end of the drain pipe 290 is adapted to penetrate into the interior of another sleeve 270;

[0061] The inner ends of the inlet pipe 280 and the outlet pipe 290 are flush with the inner ends of the two sleeves 270;

[0062] The inner walls at both ends of the outer compartment 210 are respectively provided with pre-installed insertion holes for fitting into the ports of the inlet compartment 320 and the outlet compartment 330.

[0063] Preferably, the four overflow plates 340, together with the water inlet chamber 320 and the drainage chamber 330, can isolate the cavities separated at both ends of the outer chamber 210, so as to avoid the pressure reduction problem in the various cavities separated in the outer chamber 210, and at the same time effectively reduce the problem of water overflow caused by excessive pressure. Example 3

[0064] Combination Figure 5 and Figure 6 As shown, based on Embodiment 1, a concave hole is provided at the other end of the shaft 410, and a through hole is provided in the middle of the shaft 410.

[0065] Furthermore, a lead screw 460 is provided inside the through hole. One end of the lead screw 460 is movably installed inside the insert 450, and the threaded section of the other end of the lead screw 460 is adapted to penetrate into the concave hole.

[0066] Preferably, the shaft 410 is made entirely of stainless steel, and the shafts at both ends of the shaft 410 are assembled with the holes inside the two filter screens 360 through two bearings. After the water inlet chamber 320 and the drain chamber 330 are connected, the inner wall of the cavity is adapted to fit the outer end of the impeller 420 blades to improve the self-priming strength of the water flow, thereby improving the water pressure strength.

[0067] A hexagonal spool 470 is installed on the other end of the lead screw 460;

[0068] The shaft 410 has a threaded hole 430 inside that is adapted to mesh with the threaded section of the lead screw 460.

[0069] Preferably, the hexagonal spur head 470 mainly provides a stable platform for the rotation of the lead screw 460. Depending on the stable state of the lead screw 460 after adjustment, a pad that is engaged with the hexagonal spur head 470 can also be provided in the middle of the hole at the inner end of the sealing spur head 240 to prevent the lead screw 460 from loosening after adjustment.

[0070] The working principle and usage process of this utility model: When the lever motor 110 is powered on and started, the insertion hole 120 opened at the outer end of its internal transmission shaft will engage with the outer end of the insertion rod 450. At this time, the insertion rod 450 will drive the shaft 410 and the impeller 420 to rotate. At this time, the impeller 420 will rotate in the water inlet chamber 320 and the drainage chamber 330 that form a sealed space.

[0071] When the two external water pipes are connected to the outer ends of the inlet pipe 280 and the drain pipe 290 respectively, the water flow connected to the outer end of the inlet pipe 280 will be sucked into the inner cavity of the drain chamber 330 and the inlet chamber 320. At this time, the water flow will be sucked from the inlet chamber 320 and transferred into the drain chamber 330, and finally released from the drain pipe 290 to the water pipe at its outer end. During this process, foreign objects carried in the water flow will be blocked by the two filters 360, thereby preventing foreign objects from damaging the blades of the impeller 420.

[0072] When the head or water pressure inside the device is insufficient, insert the socket wrench into the hole inside the clamp 250 and the sealing head 240 until the socket wrench is engaged on the hexagonal head 470. Adjust the hexagonal head 470 and the screw 460 to rotate counterclockwise until the insertion rod 450 is fully retracted into the cavity of the pre-installed hole 440. At this time, the shaft 410 can be disengaged from the drive shaft inside the motor 110. When the main ring 220 and the secondary ring 230 are separated, the sealing cover 310 can be pulled out. At this time, the turbine suction mechanism 400, which is in absolute isolation, can be removed.

[0073] At this time, the pressure reducing and drainage mechanism 300 can be quickly inspected and repaired, and the accumulated dirt inside can be quickly cleaned. At this time, the new jet self-priming centrifugal pump can quickly maintain the turbine suction mechanism 400 without complicated loading and unloading, so as to reduce the maintenance cost of the device and improve the service life of the device.

[0074] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0075] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0076] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. 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.

[0077] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A jet-type self-priming centrifugal pump, comprising a drive component (100), characterized in that, It also includes a transfer mechanism (200) disposed on the drive unit (100), a pressure reducing and drainage mechanism (300) disposed within the transfer mechanism (200), and a turbine water suction mechanism (400) disposed within the pressure reducing and drainage mechanism (300). The transfer mechanism (200) includes an outer chamber (210) and a sealing head (240) that is movably installed in the outer end hole of the outer chamber (210); The pressure-reducing and water-draining mechanism (300) includes a sealing cover (310) installed in the outer slot of the outer chamber (210). The sealing cover (310) has symmetrically distributed water inlet chambers (320) and drainage chambers (330) inside. Both the water inlet chamber (320) and the drainage chamber (330) are equipped with filter screens (360). The turbine suction mechanism (400) includes a shaft (410) movably installed in two filter screens (360), one end of the shaft (410) is provided with a pre-installation hole (440), a plug rod (450) is provided in the pre-installation hole (440), and an impeller (420) is installed on the outside of the shaft (410).

2. The jet-type self-priming centrifugal pump according to claim 1, characterized in that, The other end of the shaft (410) is provided with a concave hole, and the middle part of the shaft (410) is provided with a through hole; A lead screw (460) is provided in the through hole. One end of the lead screw (460) is movably installed in the insert (450), and the threaded section of the other end of the lead screw (460) is adapted to penetrate into the concave hole. A hexagonal spur head (470) is installed on the other end of the lead screw (460). The shaft (410) has a screw hole (430) inside that is adapted to engage with the threaded section of the lead screw (460).

3. The jet-type self-priming centrifugal pump according to claim 1, characterized in that, The pressure-reducing and drainage mechanism (300) also includes four overflow plates (340), two of which are installed on the water inlet chamber (320) and the other two are installed on the drainage chamber (330); Both the outer end of the water inlet chamber (320) and the outer end of the drainage chamber (330) are provided with annular grooves, and two washers (350) are provided in the two annular grooves. Both the inlet chamber (320) and the outlet chamber (330) are equipped with horizontal protective sleeves (370).

4. A jet-type self-priming centrifugal pump according to claim 1, characterized in that, The transfer mechanism (200) also includes a clamp (250) mounted on the outer chamber (210) and a spring (260) disposed between the clamp (250) and the sealing head (240). Two symmetrically distributed sleeves (270) are installed on the outer compartment (210); One of the sleeves (270) has an inlet pipe (280) installed inside, and the other sleeve (270) has a drain pipe (290) installed inside.

5. A jet-type self-priming centrifugal pump according to claim 1, characterized in that, The transfer mechanism (200) also includes two main rings (220) and two auxiliary rings (230); The inner sides of the two sub-rings (230) are provided with slots for clamping the water inlet chamber (320) and the drainage chamber (330).

6. A jet-type self-priming centrifugal pump according to claim 1, characterized in that, The drive unit (100) includes a motor (110) mounted on the outer compartment (210); The outer end of the transmission shaft inside the motor (110) is provided with a socket (120) adapted to the insertion rod (450).

7. A jet-type self-priming centrifugal pump according to claim 1, characterized in that, The inner end of the water inlet pipe (280) is adapted to penetrate into the interior of one of the sleeves (270); The inner end of the drain pipe (290) is adapted to penetrate into the interior of another sleeve (270); The inner ends of the inlet pipe (280) and the outlet pipe (290) are flush with the inner ends of the two sleeves (270).

8. A jet-type self-priming centrifugal pump according to claim 1, characterized in that, The inner walls at both ends of the outer chamber (210) are respectively provided with pre-installed insertion holes that are adapted to be snapped into the ports of the water inlet chamber (320) and the drainage chamber (330).

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