A protective housing for a drainage pump

Abstract

This utility model relates to the field of drainage pump protection technology, specifically a protective shell for a drainage pump, including a drainage pump body, an inlet pipe and a drain pipe for water intake and drainage, and a flexible hose installed on the inlet pipe and the drain pipe. The inlet pipe and the drain pipe are fixed to the drainage pump body. Two sets of protective shells are fitted on the outside of the drainage pump body, and the two sets of protective shells are connected by bolts. Rubber pads are fixed to the inner rings of the two sets of protective shells respectively. Fastening structures are provided on the outside of the inlet pipe and the drain pipe, and the fastening structures compress the flexible hose. The beneficial effect is that by fitting the two sets of protective shells on the drainage pump shell and the flexible hose around the inlet pipe and the drain pipe, and then by attaching the two ends of the first fixing ring and the second fixing ring, the pressure strips on the inner rings of the first fixing ring and the second fixing ring are pressed into the flexible hose due to the flexibility of the rubber strip. The locking pin on the second fixing ring rotates and engages with the locking groove of the first fixing ring, thereby effectively fixing the flexible hose.

Description

Technical Field

[0001] This utility model relates to the field of drainage pump protection, specifically a protective housing for drainage pumps. Background Technology

[0002] In the home appliance industry, drain pumps are commonly used in washing machines. A drain pump typically consists of a pump casing, impeller, motor, inlet pipe, drain pipe, and shaft. The drain pump is responsible for promptly discharging wastewater after washing and rinsing outside the machine to ensure efficient operation of the entire machine. However, due to being in a humid environment with water flow impact and fiber impurities for a long time, it is very easy for impurities to clog, leak, or the motor to get damp, which will affect its service life. Therefore, a protective casing is usually installed on the outside of the drain pump.

[0003] However, in the existing technology, due to the elastic clamps connecting the drain pipe and the water inlet pipe, it is necessary to use pliers to clamp them, making it more troublesome and laborious to install and remove the hose. Utility Model Content

[0004] The purpose of this invention is to provide a protective housing for a drainage pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a drainage pump body, an inlet pipe and a drain pipe for water intake and drainage, a flexible hose installed on the inlet pipe and the drain pipe, the inlet pipe and the drain pipe being fixed on the drainage pump body, two sets of protective shells being fitted on the outside of the drainage pump body, and the two sets of protective shells being connected by bolts, with rubber pads fixed to the inner rings of the two sets of protective shells respectively, and fastening structures being provided on the outside of both the inlet pipe and the drain pipe, the fastening structures pressing the flexible hose together.

[0006] Preferably, the two sets of protective shells have different shapes, and the two sets of protective shells enclose the main body of the drainage pump.

[0007] Preferably, the inner ring of the rubber pad and the outer shell of the drain pump body are tightly fitted together.

[0008] Preferably, four sets of protrusions are fixed on the outer surface of the protective shell, wherein three sets of protrusions are fixed on one set of protective shells and the other set of protrusions is fixed on another set of protective shells. The four sets of protrusions are located on both sides of the water inlet pipe and the water outlet pipe, and the number of protrusions corresponding to the water inlet pipe and the water outlet pipe is two sets respectively.

[0009] Preferably, the fastening structure includes a rubber strip, a first fixing ring, a second fixing ring, a pressure strip, a groove, and a pin. The lower surface of the rubber strip is connected to the upper surface of the protrusion, and the rubber strip and the protrusion correspond one-to-one. The first fixing ring and the second fixing ring are respectively fixed to the upper surface of the rubber strip. There are two sets of the first fixing ring and the second fixing ring. One set of the first fixing ring and the second fixing ring are located on both sides of the water inlet pipe, and the other set of the first fixing ring and the second fixing ring are located on both sides of the drain pipe. The pressure strip is fixed to the inner ring of the first fixing ring and the second fixing ring. There are multiple sets of pressure strips, and the pressure strips are arranged in a circumferential array around the central axis of the hose. The inner ring of the pressure strip is tightly fitted to the hose. The groove has a semi-circular structure, and the pin has a rectangular "C" shape structure. The two ends of the pin rotate in the groove opened on the surface of the second fixing ring, and the long side of the pin is locked in the groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The protective housing for the drainage pump proposed in this utility model involves placing two sets of protective housings over the outer shell of the drainage pump, and then placing the hose around the inlet and outlet pipes. By attaching the two ends of fixing ring one and fixing ring two together, the flexibility of the rubber strip allows fixing ring one and fixing ring two to swing freely, causing the pressure strips on the inner rings of fixing ring one and fixing ring two to press the hose together. The locking pin on fixing ring two rotates and engages with the locking groove of fixing ring one, thereby effectively fixing the hose. Disassembly can be completed simply by moving the locking pin. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This utility model Figure 1 A schematic diagram of the exploded structure;

[0014] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0015] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0016] Figure 5 This is a schematic diagram of the fixing ring structure of this utility model;

[0017] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B.

[0018] In the diagram: 1. Main body of the drainage pump; 2. Inlet pipe; 3. Drain pipe; 4. Protective shell; 5. Hose; 6. Rubber pad; 7. Protrusion; 8. Rubber strip; 9. Fixing ring one; 10. Fixing ring two; 11. Locking pin; 12. Locking groove; 13. Pressure strip. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1

[0021] Please see Figures 1-6 This utility model provides a technical solution: a protective shell for a drainage pump, including a drainage pump body 1, an inlet pipe 2 and a drain pipe 3 for water intake and drainage, a flexible hose 5 installed on the inlet pipe 2 and the drain pipe 3, the inlet pipe 2 and the drain pipe 3 being fixed on the drainage pump body 1, two sets of protective shells 4 being fitted on the outside of the drainage pump body 1, the two sets of protective shells 4 having different shapes, the two sets of protective shells 4 wrapping around the drainage pump body 1, and the two sets of protective shells 4 being connected by bolts, the inner rings of the two sets of protective shells 4 being respectively fixed with rubber pads 6, the inner rings of the rubber pads 6 being tightly fitted with the outer shell of the drainage pump body 1;

[0022] Specifically, the drain pump is usually used inside the back shell of the washing machine. The main body 1 of the drain pump usually consists of a pump casing, impeller, motor, inlet pipe 2, drain pipe 3, and shaft. Washing wastewater flows into the drain pipe through the drain pipe 3 at the bottom of the inner tub of the washing machine. The wastewater flows into the hose 5 through the drain pipe 3 at the bottom of the inner tub of the washing machine, and then flows into the pump casing through the inlet pipe 2. The impeller inside the pump casing is driven by the motor to rotate at high speed through the shaft. When the impeller blades rotate, they use centrifugal force to throw the water flow towards the peripheral wall of the pump casing, so that the water flow flows from the center to the outer edge, and is discharged from the drain pipe 3 under the guidance of the flow channel of the pump casing. Two sets of protective shells 4 are fitted around the drain pump main body 1 and connected by bolts. At this time, the internal rubber gasket 6 presses the drain pump main body 1, thereby protecting the drain pump main body 1 from external impacts or collisions.

[0023] Example 2

[0024] Based on Embodiment 1, in order to protect the drainage pump, four sets of protrusions 7 are fixed to the outer surface of the protective shell 4. Three sets of protrusions 7 are fixed to one set of protective shell 4, and another set of protrusions 7 is fixed to another set of protective shell 4. The four sets of protrusions 7 are located on both sides of the inlet pipe 2 and the drain pipe 3, and the number of protrusions 7 corresponding to the inlet pipe 2 and the drain pipe 3 is two sets respectively. Fastening structures are provided on the outer sides of the inlet pipe 2 and the drain pipe 3. The fastening structures press the hose 5. The fastening structures include rubber strips 8, fixing ring 1 9, fixing ring 2 10, pressure strips 13, grooves 12 and pins 11. The lower surface of the rubber strip 8 is connected to the upper surface of the protrusions 7, and the rubber strip 8 and the protrusions 7 correspond one-to-one. Fixing ring 19 and fixing ring 20 are respectively fixed on the upper surface of rubber strip 8. There are two sets of fixing ring 19 and fixing ring 20. One set of fixing ring 19 and fixing ring 20 is located on both sides of water inlet pipe 2, and the other set of fixing ring 19 and fixing ring 20 is located on both sides of drain pipe 3. Pressure strip 13 is fixed on the inner ring of fixing ring 19 and fixing ring 20. There are multiple sets of pressure strip 13, and pressure strip 13 is arranged in a circular array around the central axis of hose 5. The inner ring of pressure strip 13 is tightly attached to hose 5. The slot 12 has a semi-circular structure, and the pin 11 has a rectangular "C" shaped structure. The two ends of the pin 11 rotate in the groove opened on the surface of fixing ring 20, and the long side of the pin 11 is locked in the slot 12.

[0025] Specifically, two sets of protective shells 4 are fitted onto the outer shell 1 of the drain pump, and the hose 5 is fitted around the inlet pipe 2 and the drain pipe 3. Then, by attaching the two ends of the fixing ring 1 9 and the fixing ring 2 10, the flexibility of the rubber strip 8 allows the fixing ring 1 9 and the fixing ring 2 10 to swing, so that the pressure strip 13 on the inner ring of the fixing ring 1 9 and the fixing ring 2 10 presses the hose 5. The locking pin 11 on the fixing ring 2 10 rotates and locks into the locking groove 12 of the fixing ring 1 9, thereby effectively fixing the hose 5. At the same time, disassembly is completed by simply moving the locking pin 11. The rubber strip 8 is made of silicone rubber, which is resistant to aging and has good flexibility.

[0026] In use, the two sets of protective shells 4 are placed on the outer shell 1 of the drain pump, and the hose 5 is placed around the inlet pipe 2 and the drain pipe 3. Then, by attaching the two ends of the fixing ring 1 9 and the fixing ring 2 10, the flexibility of the rubber strip 8 allows the fixing ring 1 9 and the fixing ring 2 10 to swing, so that the pressure strip 13 on the inner ring of the fixing ring 1 9 and the fixing ring 2 10 presses the hose 5. The locking pin 11 on the fixing ring 2 10 rotates and locks into the locking groove 12 of the fixing ring 1 9, thereby effectively fixing the hose 5. At the same time, when disassembling, only the locking pin 11 needs to be moved to complete the disassembly. The rubber strip 8 is made of silicone rubber, which is resistant to aging and has good flexibility.

[0027] 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 protective housing for a drainage pump, comprising a drainage pump body (1), an inlet pipe (2) and a drain pipe (3) for water intake and drainage, a flexible hose (5) installed on the inlet pipe (2) and the drain pipe (3), the inlet pipe (2) and the drain pipe (3) being fixed to the drainage pump body (1), characterized in that: The main body (1) of the drainage pump is fitted with two sets of protective shells (4) on the outside, and the two sets of protective shells (4) are connected by bolts. The inner rings of the two sets of protective shells (4) are respectively fixed with rubber pads (6). The outer sides of the water inlet pipe (2) and the drain pipe (3) are provided with fastening structures, and the fastening structures are pressed into the hose (5).

2. The protective housing for a drainage pump according to claim 1, characterized in that: The two sets of protective shells (4) have different shapes, and the two sets of protective shells (4) enclose the main body of the drainage pump (1).

3. The protective housing for a drainage pump according to claim 1, characterized in that: The inner ring of the rubber pad (6) and the outer shell of the drain pump body (1) are tightly fitted together.

4. The protective housing for a drainage pump according to claim 1, characterized in that: The outer surface of the protective shell (4) is fixed with four sets of protrusions (7), three sets of protrusions (7) are fixed on one set of protective shell (4), and another set of protrusions (7) is fixed on another set of protective shell (4). The four sets of protrusions (7) are located on both sides of the water inlet pipe (2) and the drain pipe (3), and the number of protrusions (7) corresponding to the water inlet pipe (2) and the drain pipe (3) is set to two sets respectively.

5. A protective housing for a drainage pump according to claim 4, characterized in that: The fastening structure includes a rubber strip (8), a first fixing ring (9), a second fixing ring (10), a pressure strip (13), a groove (12), and a locking pin (11). The lower surface of the rubber strip (8) is connected to the upper surface of the protrusion (7), and the rubber strip (8) and the protrusion (7) correspond one-to-one. The first fixing ring (9) and the second fixing ring (10) are respectively fixed on the upper surface of the rubber strip (8). There are two sets of the first fixing ring (9) and the second fixing ring (10). One set of the first fixing ring (9) and the second fixing ring (10) are located on both sides of the water inlet pipe (2), and the other set of the first fixing ring (9) and the second fixing ring (10) are located on both sides of the water inlet pipe (2). (9) and the second fixing ring (10) are located on both sides of the drain pipe (3). The pressure strip (13) is fixed in the inner ring of the first fixing ring (9) and the second fixing ring (10). The pressure strip (13) is provided in multiple sets, and the pressure strip (13) is arranged in a circular array around the central axis of the hose (5). The inner ring of the pressure strip (13) is tightly attached to the hose (5). The slot (12) has a semi-circular structure, and the pin (11) has a rectangular "C" shape structure. The two ends of the pin (11) rotate in the groove opened on the surface of the second fixing ring (10), and the long side of the pin (11) is stuck in the slot (12).

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