Water inlet mechanism and double-barrel washing machine

Abstract

The application discloses a water inlet mechanism and a double-barrel washing machine, and relates to the technical field of washing machines, which comprises a sleeve, two ends of which are respectively provided with end plates; a filter screen cylinder is coaxially fixedly connected in the sleeve, an annular channel is formed between the outer periphery of the filter screen cylinder and the inner wall of the sleeve, and the two ends of the annular channel are closed; an annular piston is slidably arranged in the annular channel along the axial direction of the sleeve, and a water inlet cavity is formed between the annular piston and one end of the annular channel; one end of a water inlet pipe is connected to the lateral side of the sleeve and communicates with the water inlet cavity; and a water outlet pipe penetrates through one of the end plates and communicates with one end of the filter screen cylinder. In the application, even if the water quality is polluted or too many impurities exist, the whole filter screen cylinder will not be completely blocked, once the part of the filter screen cylinder located in the water inlet cavity is blocked and the water flow is difficult to pass, the annular piston only needs to be moved to increase the space of the water inlet cavity, and the filter screen cylinder which is not blocked can participate in filtering the water flow, so that the period of cleaning or replacing the filter screen cylinder can be greatly prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing machines, in particular to a water inlet mechanism and a double-barrel washing machine. BACKGROUND

[0002] Some user households contain impurities such as silt and sand in tap water. The silt and sand impurities are removed before the tap water enters the washing machine to ensure the water washing cycle inside the washing machine. The washing machine in the prior art is provided with a filter screen at the position where the water inlet pipe is connected to the faucet. The filter screen filters silt and the like. The filter screen has many disadvantages. For example, after a long period of filtration, the sand accumulates at the filter screen or the sand sharp corners are embedded in the filter screen holes, which easily clogs the water inlet of the washing machine, causing slow or even no water inflow. This requires frequent cleaning of the filter screen, and the cleaning requires disassembly and reinstallation of the water inlet pipe on the faucet, which is inconvenient to operate.

[0003] For example, the patent with publication number CN204097759U and the name of "washing machine water inlet filter device and washing machine" includes a housing, the housing includes a sealingly fitted upper shell and lower shell, the upper shell is provided with a water inlet, the lower shell is provided with a water outlet, the housing is provided with a filter screen, a water distribution plate and a filter cylinder from top to bottom, the filter cylinder is connected with the water outlet, the filter cylinder includes a cylinder body and an upper cover. By setting the filter screen, the water distribution plate and the filter cylinder in the housing, and the filter cylinder including the cylinder body and the upper cover; in this way, the washing water entering from the water inlet falls through the filter screen, and is distributed and falls through the water distribution plate. Part of the water is filtered through the upper cover of the filter cylinder and enters the water outlet, and the other part of the water is filtered through the cylinder body of the filter cylinder and enters the water outlet. This speeds up the washing water through the filter cylinder, saves time, and avoids the problem of water congestion at the filter cylinder due to slow filtering speed of the filter cylinder.

[0004] In the prior art such as the above patent, although the design of the filter cylinder increases the filtering area, due to factors such as tap water source, pipeline maintenance, etc., the water quality will appear turbid and impurities will increase from time to time, which will easily cause the filter cylinder to be blocked, and ultimately lead to poor water inflow and shorten the period of cleaning or replacing the filter cylinder. SUMMARY

[0005] The purpose of the present application is to provide a water inlet mechanism and a double-barrel washing machine to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a water inlet mechanism, comprising: a sleeve, both ends of which are respectively provided with end plates; a filter screen cylinder coaxially fixedly connected in the sleeve, an annular channel being formed between the outer periphery of the filter screen cylinder and the inner wall of the sleeve, both ends of the annular channel being closed; an annular piston slidably arranged in the annular channel along the axial direction of the sleeve, a water inlet cavity being formed between the annular piston and one end of the annular channel; a water inlet pipe, one end of which is connected to the lateral side of the sleeve and communicates with the water inlet cavity; and a water outlet pipe, one end of which penetrates one of the end plates and communicates with one end of the filter screen cylinder.

[0007] Further, the lateral side of the sleeve is provided with a collecting assembly at the bottom for collecting sand and stones.

[0008] Further, the collecting assembly comprises a necked portion and a collecting bottle, one end of the necked portion communicating with the water inlet cavity and the other end communicating with the collecting bottle.

[0009] Further, the inner lateral side of the annular piston and the filter screen cylinder and / or the annular piston and the inner wall of the sleeve have damping.

[0010] Further, the end plate of the sleeve is movably connected with a sliding rod at the dynamic seal, one end of the sliding rod being fixedly connected with the annular piston, and a locking assembly being arranged between the end plate and the sliding rod.

[0011] Further, the locking assembly comprises a sliding block, the sliding block being slidably connected to the end plate, the sliding block having a locking station abutting against the sliding rod in the sliding stroke of the sliding block, a spring being arranged between the sliding block and the end plate, the spring driving the sliding block to slide to the locking station in the process of restoring deformation.

[0012] Further, the cleaning assembly is further arranged, and the cleaning assembly is used for cleaning the sand and stones embedded on the filter screen cylinder.

[0013] Further, the cleaning assembly comprises a central rod, the central rod being slidably connected in the water outlet pipe along the axial direction of the filter screen cylinder through a connecting rod, a plurality of scraping rings being arranged on the central rod along the length direction, the lateral side of each scraping ring movably abutting against the inner periphery of the filter screen cylinder, one end of the central rod being fixedly connected with a resistance disc located in the water outlet pipe, an elastic unit being arranged between the central rod and the water outlet pipe, the elastic force of the elastic unit acting on the central rod in the direction opposite to the water flow.

[0014] Further, the scraping rings are fixedly connected to the central rod through a plurality of connecting rods, the elastic unit is a compression spring, the compression spring being sleeved on the central rod, one end of the compression spring abutting against the connecting rod and the other end abutting against the connecting rod close to the connecting rod.

[0015] A double-barrel washing machine, comprising a water inlet valve and the above-mentioned water inlet mechanism, the water outlet pipe of the water inlet mechanism communicating with the water inlet valve.

[0016] In the technical scheme, the water inflow mechanism is provided, water flows into the water inflow cavity through the water inflow pipe, then passes through the filter screen cylinder to enter the filter screen cylinder, and then enters the washing machine through the water outflow pipe. The annular piston is designed so that the filter screen cylinder only in the part of the water inflow cavity plays a filtering role, and other parts of the filter screen cylinder do not play a filtering role. This makes it possible that even if the water quality is polluted or the impurities are too much, the entire filter screen cylinder will not be completely blocked. Once the part of the filter screen cylinder in the water inflow cavity is blocked and the water flow is difficult to pass, the annular piston only needs to be moved to increase the space of the water inflow cavity, so that the filter screen cylinder that is not blocked can participate in filtering the water flow, thereby greatly prolonging the period of cleaning or replacing the filter screen cylinder.

[0017] Since the water inflow mechanism has the above technical effects, the double-barrel washing machine containing the water inflow mechanism should also have corresponding technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0019] Fig. 1 The structural schematic diagram provided for the embodiments of the present application;

[0020] Figs. 2-3 The structural sectional view provided for the embodiments of the present application;

[0021] Figs. 4-5 The structural sectional view provided for another embodiment of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, sleeve; 2, end plate; 3, filter screen cylinder; 4, annular piston; 5, water inflow pipe; 6, water outflow pipe; 7, neck-in part; 8, collection bottle; 9, sliding rod; 10, sliding block; 11, spring; 12, center rod; 13, scraping ring; 14, resistance disc; 15, elastic unit. DETAILED DESCRIPTION

[0024] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0025] Please refer to Figs. 1-5The water inlet mechanism provided by the embodiment of the present application comprises a sleeve 1, a filter screen cylinder 3, an annular piston 4, a water inlet pipe 5 and a water outlet pipe 6, wherein the sleeve 1 is in the shape of a cylindrical tube, the sleeve 1 is provided with end plates 2 at two ends respectively, the filter screen cylinder 3 is coaxially fixedly connected in the sleeve 1, specifically, the two end plates 2 are each provided with a limiting ring, the two ends of the filter screen cylinder 3 are each sleeved with a limiting ring, the diameter of the filter screen cylinder 3 is preferably 1 / 2-2 / 3 of the diameter of the sleeve 1, an annular channel is formed between the outer periphery of the filter screen cylinder 3 and the inner wall of the sleeve 1, the two ends of the annular channel are closed, specifically, the end plates 2 can achieve the closing effect, the annular piston 4 is slidably arranged in the annular channel along the axial direction of the sleeve 1, a water inlet cavity is formed between the annular piston 4 and one end of the annular channel, the inner diameter of the annular piston 4 is matched with the outer diameter of the filter screen cylinder 3, the outer diameter of the annular piston 4 is matched with the inner diameter of the sleeve 1, one end of the water inlet pipe 5 is fixedly connected on the lateral side of the sleeve 1 and is communicated with the water inlet cavity, the water outlet pipe 6 is communicated with one end of the filter screen cylinder 3 after penetrating through one of the end plates 2, and the water outlet pipe 6 is coaxial with the filter screen cylinder 3.

[0026] In the above technical solution, the water inlet mechanism provided by the present application is characterized in that water flows into the water inlet cavity through the water inlet pipe 5, then passes through the filter screen cylinder 3 into the filter screen cylinder 3, and then enters the washing machine through the water outlet pipe 6, the design of the annular piston 4 makes the filter screen cylinder 3 only located in the part of the water inlet cavity play a filtering role, and the other part of the filter screen cylinder 3 does not play a filtering role, which makes even if there is a stage of water pollution and too much impurity, the entire filter screen cylinder 3 will not be completely blocked, once the part of the filter screen cylinder 3 located in the water inlet cavity is blocked so that the water flow is difficult to pass, it is only necessary to move the annular piston 4 to increase the space of the water inlet cavity, so that the filter screen cylinder 3 which is not blocked can participate in filtering the water flow, thereby the period of cleaning or replacing the filter screen cylinder 3 can be greatly prolonged.

[0027] As a preferred technical solution of the present application, the lateral side of the sleeve 1 is provided with a collecting assembly for collecting sand and stones. Specifically, the collecting assembly comprises a neck-reducing part 7 and a collecting bottle 8, one end of the neck-reducing part 7 is communicated with the water inlet cavity, and the other end is communicated with the collecting bottle 8, for example, the bottle opening of the collecting bottle 8 is threadedly connected with the bottom of the neck-reducing part 7. The neck-reducing part 7 is configured to have a radial dimension smaller than that of the collecting bottle 8, the neck-reducing part 7 is arranged to prevent the water flow from carrying the sand and impurities already collected in the collecting bottle 8 into the water inlet cavity when the water flow passes through the water inlet cavity due to the flow rate of the water flow, thereby increasing the filtering burden of the filter screen, the neck-reducing part 7 can be in the shape of a sandglass or a funnel, and the collecting bottle 8 is preferably in a transparent structure, for example, a transparent glass bottle or a transparent plastic bottle, the sand in the collecting bottle 8 can be directly observed by the naked eye, so that the collecting bottle 8 can be cleaned in time when the sand in the collecting bottle 8 is full or about to be full.

[0028] As a preferred technical scheme of the present application, the end plate 2 of the sleeve 1 is connected with a sliding rod 9 through dynamic sealing, the sliding rod 9 can slide relative to the end plate 2, one end of the sliding rod 9 is fixedly connected with the annular piston 4, a locking assembly is arranged between the end plate 2 and the sliding rod 9, the locking assembly can lock and unlock the sliding rod 9 relative to the end plate 2, specifically, the locking assembly comprises a sliding block 10, the sliding block 10 is slidably connected on the end plate 2, the sliding block 10 has a locking position abutting against the sliding rod 9 in the sliding stroke of the sliding block 10, a spring 11 is arranged between the sliding block 10 and the end plate 2, the spring 11 drives the sliding block 10 to slide to the locking position in the process of restoring deformation, one end of the sliding block 10 is provided with a rubber pad, when the sliding block 10 abuts against the locking sliding rod 9, the rubber pad is tightly attached to the sliding rod 9, the friction force between the rubber pad and the sliding rod 9 can prevent the sliding rod 9 from sliding relative to the sliding block 10. The sliding block 10 is slid against the elastic force of the spring 11, so that the sliding block 10 no longer abuts against the locking sliding rod 9, at this time, the sliding rod 9 can be slid, the sliding rod 9 can drive the annular piston 4 to slide in the annular channel, so as to increase the space of the water inlet cavity, and the area of the filter screen cylinder 3 participating in filtration is increased, then the sliding block 10 is loosened, the elastic force of the spring 11 makes the sliding block 10 abut against the locking sliding rod 9 again. The area of the filter screen cylinder 3 participating in filtration can be continuously increased by periodically repeating the above operation, so that the period of cleaning or replacing the filter screen cylinder 3 can be greatly prolonged.

[0029] As another preferred technical scheme of the present application, the inner circumferential side of the annular piston 4 and the filter screen cylinder 3 and / or the annular piston 4 and the inner wall of the sleeve 1 have damping, the damping can come from the sliding friction force between the inner circumferential side of the annular piston 4 and the filter screen cylinder 3 and / or the annular piston 4 and the inner wall of the sleeve 1, the effect brought is that once the part of the filter screen cylinder 3 located in the water inlet cavity is blocked so that the water flow is difficult to pass, the water pressure in the water inlet cavity is greater than the water pressure in the annular channel except the water inlet cavity, so that the water pressure in the water inlet cavity can overcome the sliding damping of the annular piston 4 to drive the annular piston 4 to move, the space of the water inlet cavity is expanded, that is, the filter screen cylinder 3 which is not blocked participates in filtering water flow, so that the adaptive sliding of the annular piston 4 and the filtering area of the new filter screen cylinder 3 are realized, the whole process does not need to be actively operated by personnel, the present application is automatically adapted, the structure is ingenious, the practicality is strong, and the period of cleaning or replacing the filter screen cylinder 3 can be greatly prolonged.

[0030] In still another embodiment of the present application, a cleaning assembly is further provided for cleaning the sand embedded in the filter screen cylinder 3. Specifically, the cleaning assembly comprises a central rod 12 which is slidably connected in the water outlet pipe 6 along the axial direction of the filter screen cylinder 3 through a connecting rod, and a plurality of scraping rings 13 are arranged along the length direction of the central rod 12, the peripheral side of each scraping ring 13 is movably attached to the inner periphery of the filter screen cylinder 3, one end of the central rod 12 is fixedly connected with a resistance disc 14 which is located in the water outlet pipe 6, the diameter of the resistance disc 14 is smaller than that of the water outlet pipe 6, and an elastic unit 15 is arranged between the central rod 12 and the water outlet pipe 6, the elastic force of the elastic unit 15 acts on the central rod 12 in the direction opposite to the water flow. Further, the scraping rings 13 are fixedly connected to the central rod 12 through a plurality of connecting rods, and the elastic unit 15 is preferably a compression spring which is sleeved on the central rod 12, one end of the compression spring abuts against the connecting rod, and the other end abuts against the connecting rod close to the connecting rod. In this technical solution, when the washing machine starts to take water so that the water flow passes through the filter screen cylinder 3, the impact force of the water flow on the resistance disc 14 makes the resistance disc 14 move downstream of the water flow, the resistance disc 14 moves the scraping rings 13 to move synchronously through the central rod 12 against the elastic force of the elastic unit 15, the scraping rings 13 scrape on the inner wall of the filter screen cylinder 3 to remove the impurities attached to the inner wall of the filter screen cylinder 3, and most importantly, the sand embedded in the filter screen cylinder 3 is loosened, so that the loosened sand can be settled in the collecting bottle 8; when the washing machine stops taking water, the resistance disc 14, the central rod 12 and the scraping rings 13 are reversely slidably reset under the elastic force of the elastic unit 15, so that the scraping rings 13 are scraped again from the inner wall of the filter screen cylinder 3, and the cleaning assembly plays a role of dredging the filter screen cylinder 3.

[0031] The present application further provides a double tub washing machine which comprises a water inlet valve and the above-mentioned water inlet mechanism, and the water outlet pipe 6 of the water inlet mechanism is communicated with the water inlet valve.

[0032] Since the above-mentioned water inlet mechanism has the above-mentioned technical effects, the double tub washing machine comprising the water inlet mechanism should also have corresponding technical effects.

[0033] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is self-evident that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A water inlet mechanism, characterized in that, include: A sleeve (1) has end plates (2) at both ends; The filter cylinder (3) is coaxially fixed inside the sleeve (1). An annular channel is formed between the outer periphery of the filter cylinder (3) and the inner wall of the sleeve (1), and the two ends of the annular channel are closed. An annular piston (4) is slidably disposed in an annular channel along the axial direction of the sleeve (1), and a water inlet chamber is formed between the annular piston (4) and one end of the annular channel; The water inlet pipe (5) has one end connected to the circumference of the sleeve (1) and communicates with the water inlet cavity; The water outlet pipe (6) passes through one end plate (2) and is connected to one end of the filter screen cylinder (3); The sleeve (1) has a sliding rod (9) dynamically sealed on the end plate (2). One end of the sliding rod (9) is fixedly connected to the annular piston (4). A locking assembly is provided between the end plate (2) and the sliding rod (9). The locking assembly includes a sliding block (10), which is slidably connected to the end plate (2). The sliding block (10) has a locking position that abuts against the sliding rod (9) during its sliding stroke. A spring (11) is provided between the sliding block (10) and the end plate (2). The process of the spring (11) restoring its deformation drives the sliding block (10) to slide to the locking position. It also includes a cleaning component for cleaning sand and gravel embedded in the filter cylinder (3); The cleaning assembly includes a central rod (12), which is slidably connected to the outlet pipe (6) along the axial direction of the filter cylinder (3) via a connecting rod. Multiple scraper rings (13) are arranged in an array along the length direction at the center. The peripheral side of each scraper ring (13) is movably attached to the inner circumference of the filter cylinder (3). One end of the central rod (12) is fixedly connected to a resistance plate (14) located in the outlet pipe (6). An elastic unit (15) is provided between the central rod (12) and the outlet pipe (6). The elastic force of the elastic unit (15) acts on the central rod (12) in the opposite direction of the water flow.

2. The water inlet mechanism according to claim 1, characterized in that, The bottom of the peripheral side of the sleeve (1) is provided with a sand and gravel collection component.

3. The water inlet mechanism according to claim 2, characterized in that, The collection assembly includes a constricted neck (7) and a collection bottle (8), one end of the constricted neck (7) is connected to the water inlet chamber and the other end is connected to the collection bottle (8).

4. The water inlet mechanism according to claim 1, characterized in that, The annular piston (4) has damping between its inner circumference and the filter cylinder (3) and / or between its inner wall and the sleeve (1).

5. The water inlet mechanism according to claim 1, characterized in that, The scraper ring (13) is fixedly connected to the central rod (12) by multiple connecting rods. The elastic unit (15) is a compression spring, which is sleeved on the central rod (12). One end of the compression spring abuts against the connecting rod, and the other end abuts against the connecting rod near the connecting rod.

6. A twin-tub washing machine, comprising a water inlet valve, characterized in that, It also includes the water inlet mechanism as described in any one of claims 1-5, wherein the water outlet pipe (6) of the water inlet mechanism is connected to the water inlet valve.

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