Water injection device of self-service washing machine

Abstract

The utility model discloses a water injection device of a self-service washing machine. A center counter bore is formed in the top face of a base body, and a plurality of water injection grooves extending outwards from the center counter bore are formed in the top face of the base body. Water injection holes are formed in the tail ends of the water injection grooves; the cover body is in sealing fit connection with the top surface of the seat body; a water inlet hole communicated with the central counter bore is formed in the cover body; a penetrating hole communicated with the tail end of the water injection groove is formed in the cover body; the cover body is provided with a transparent tube which is butted and communicated with the upper end of the penetrating hole; the floating piece comprises a rod body movably inserted into the insertion hole, a first floating ball arranged at the first end of the rod body and located in the transparent pipe, and a second floating ball arranged at the second end of the rod body and located in the water injection groove; the second floating ball has a floating position away from the water injection hole and a sinking position for sealing the water injection hole. The water injection process can be displayed in real time, observation is convenient, a consumer can find the situation that water is not injected into the washing machine in time, and the actual application requirement of clothes washing is effectively met.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a water filling device for a self-service washing machine. Background Technology

[0002] Currently, self-service commercial washing machines are installed in schools, factories, apartments, and other locations to meet laundry needs. These machines are generally top-loading washing machines. A water injection device is installed on the lid of the top-loading washing machine to fill the inner drum with water. In practice, situations may arise where water cannot be injected due to blockage of the water injection device, improper operation, or machine malfunction. Consumers may not notice this in time, delaying the washing of their clothes. Furthermore, even after the water injection device has finished filling, residual water remains inside, which can easily breed bacteria, making the washing process unhygienic and failing to meet the actual needs of laundry. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a water filling device for a self-service washing machine that can display the water filling process in real time and is easy to observe, so that consumers can promptly detect when the washing machine is not filled with water, effectively meeting the practical application needs of washing clothes.

[0004] The technical solution of this utility model is achieved as follows: a water injection device for a self-service washing machine, comprising a base, a cover, and a floating component;

[0005] The top surface of the base is provided with a central countersunk hole and a plurality of water injection grooves extending outward from the central countersunk hole; the end of each water injection groove is provided with a water injection hole that penetrates to the bottom surface of the base.

[0006] The cover covers the base and is sealed to the top surface of the base.

[0007] The cover has a water inlet hole that communicates with the central recess; the cover has an insertion hole that communicates with the end of the water injection tank and runs through the cover from top to bottom; the cover has a transparent tube that connects with the upper end of the insertion hole.

[0008] The floating component is located at the end of the water injection tank and includes a rod that is movably inserted into the insertion hole, a first float located at the first end of the rod and inside the transparent tube, and a second float located at the second end of the rod and inside the water injection tank. The second float is buoyantly located inside the water injection tank and has a floating position away from the water injection hole and a sinking position that closes the water injection hole.

[0009] Furthermore, the bottom surface of the water injection tank is arranged at an angle, with its upper angled end connected to the central sinkhole.

[0010] Furthermore, the water injection tank is provided with at least one set of perforated plates; the perforated plates are intercepted within the water injection tank; filter holes are distributed on the perforated plates, and a notch is provided on the bottom end of the perforated plates near the bottom surface of the water injection tank.

[0011] Furthermore, the perforated plate is inserted into the base body for a vertical connection.

[0012] Furthermore, the water injection tank has an oblique opening at the edge of the water injection hole; in the sunken position, the oblique opening communicates with the interior of the water injection hole.

[0013] Furthermore, the bottom surface of the base is provided with a boss structure corresponding to each water injection hole; the boss structure is provided with a flared part communicating with the water injection hole; the flared part extends downward from the water injection hole and the diameter gradually increases.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] 1. This utility model utilizes a floating component. During the water filling process, the floating component rises as a whole and opens the water filling hole, allowing observation of the first float's movement through a transparent tube, thus enabling observation of the water filling process. When the first float does not float, it is determined that the washing machine has not performed a water filling operation. This method allows for real-time display of the water filling process and convenient observation, enabling consumers to promptly detect situations such as the washing machine not filling with water or internal blockages in the water filling device, effectively meeting the practical application needs of clothing washing.

[0016] 2. In this utility model, during the water injection process, the injected water is diverted by several water injection tanks and then enters the inner drum of the washing machine through the water injection hole. By diverting the injected water into several branches, the water can be evenly sprinkled in the inner drum of the washing machine, and the filter screens in each water injection tank will not be blocked at the same time, ensuring that the water injection process is carried out smoothly and helping to extend the service life of the washing machine.

[0017] 3. This utility model arranges the bottom surface of the water injection tank at an angle, so that the water in the water injection tank can be guided to the water injection hole and discharged, preventing water accumulation in the water injection tank and preventing bacterial growth, which is highly practical.

[0018] 4. In this utility model, after water filling is completed, the second float moves to the sinking position and seals the water filling hole to prevent external dust from entering the water filling tank, which is highly practical. Attached Figure Description

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 A sectional view of the structure;

[0022] Figure 3 for Figure 1 Exploded view;

[0023] Figure 4 This is a cross-sectional view of the base of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the bottom surface of the base of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the cover of this utility model;

[0026] Figure 7 This is a schematic diagram of the perforated plate of this utility model;

[0027] Figure 8 This is a schematic diagram of the water injection device of this utility model being assembled on the washing machine lid;

[0028] The components are as follows: 1. Base; 11. Central countersunk hole; 12. Water inlet trough; 13. Water inlet hole; 14. Slanted opening; 15. Boss structure; 16. Flared opening; 3. Perforated plate; 31. Filter hole; 32. Notch; 2. Cover; 21. Water inlet hole; 22. Through hole; 4. Floating component; 41. Rod; 42. First float; 43. Second float; 5. Transparent tube. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] like Figure 1-8The image shows a water injection device for a self-service washing machine according to this embodiment. This device is installed on the lid of the washing machine to inject water into the inner tub. The device includes a base 1, a cover 2, and a floating component 4. The base 1 is a cylindrical structure with a central countersunk hole 11 machined on its top surface. Several water injection grooves 12 extending outward from the central countersunk hole 11 are machined on the top surface of the base 1. The number of water injection grooves 12 depends on the actual design; in this embodiment, there are four sets of water injection grooves 12. A water injection hole 13 is machined at the end of each water injection groove 12 (the end furthest from the central countersunk hole 11) extending to the bottom surface of the base 1. The cover 2 covers the base 1, and its inner top surface is sealed to the top surface of the base 1, thereby sealing the water injection grooves 12 and the central countersunk hole 11. The base 1 and the cover 2 are connected by bolts, allowing them to be disassembled. Through the above structural design, during the water injection process, water enters the central sinkhole 11 through the water inlet hole 21, and then exits from the water injection hole 13 through each water injection tank 12.

[0031] The cover 2 has a water inlet hole 21 that communicates with the central countersunk hole 11. A through hole 22 is machined at the end of each water injection tank 12, penetrating the cover 2 vertically. The through hole 22 communicates with the end of the water injection tank 12. A transparent tube 5 is arranged on the cover 2 corresponding to each through hole 22. The transparent tube 5 is made of transparent material, with one end open and the other end closed. The transparent tube 5 is located on the outside of the cover 2, with its open end threadedly connected to the cover 2 to connect with the through hole 22. The aforementioned floating component 4 is arranged at the end of the water injection tank 12, including a rod 41, a first float 42 installed at the first end of the rod 41, and a second float 43 installed at the second end of the rod 41. The rod 41 moves vertically through the through hole 22, and the outer diameter of the rod 41 matches the inner diameter of the through hole 22. A first float 42 is disposed within a transparent tube 5, and a second float 43 is disposed within a water inlet 12. Both the first float 42 and the second float 43 have a hollow structure and are relatively lightweight. The rod body 41, the first float 42, and the second float 43 are all made of plastic. The second float 43 is buoyantly disposed within the water inlet 12. When water enters the water inlet 12, the second float 43 floats within the water inlet 12, achieving a floating position away from the water inlet hole 13. When water is drained from the water inlet 12, the second float 43 descends, achieving a sunken position that closes the water inlet hole 13. In this embodiment, at this sunken position, the second float 43 does not completely close the water inlet hole 13, leaving a certain gap, allowing water to drain through this gap. The second float 43 moves to the sunken position and seals the water inlet hole 13 to prevent external dust from entering the water inlet 12. When water in the water tank 12 enters the transparent tube 5 through the through hole 22, the first float 42 can float.

[0032] The aforementioned water injection tank 12 has a bevel 14 machined at the edge of the water injection hole 13. When the second float 43 is in the submerged position, it will not cover the bevel 14, allowing the bevel 14 to remain in communication with the interior of the water injection hole 13. Through this structural design, when the second float 43 is in the submerged position, water in the water injection tank 12 can be discharged through the bevel 14, preventing water accumulation in the water injection tank 12.

[0033] The aforementioned base 1 has a boss structure 15 machined on its bottom surface corresponding to each water injection hole 13. A flared portion 16 is machined on this boss structure 15. The smaller end of the flared portion 16 communicates with the water injection hole 13. The flared portion 16 extends downward from the water injection hole 13, and its diameter gradually increases. This flared portion guides the water discharged from the water injection hole 13 to disperse and fall downwards.

[0034] In this embodiment, the bottom surface of the water injection tank 12 is arranged at an angle, and its inclined upper end is connected to the central sink hole 11, so that the water in the water injection tank 12 can be guided to the water injection hole 13 and discharged, preventing water accumulation in the water injection tank 12 and preventing bacterial growth.

[0035] In this embodiment, at least one set of perforated plates 3 are installed inside the water injection tank 12. The perforated plates 3 are positioned within the water injection tank 12, and filter holes 31 are machined onto them. These filter holes 31 allow water in the water injection tank 12 to be filtered. A notch 32 is machined on the bottom end of the perforated plate 3 near the bottom surface of the water injection tank 12. This notch 32 allows water in the water injection tank 12 to pass completely through. Slots are machined on the side walls of opposite sides of the water injection tank 12. The perforated plates 3 engage with these slots for disassembly.

[0036] In practical use, during the water filling process, water enters the central sink hole 11 through the water inlet 21, is diverted through several water inlet holes 13, and then discharged from the water inlet holes 13. The water in the water inlet tank 12 is filtered by the filter plate during transport. During the water filling process, the floating components 4 at each position rise as a whole and open the water inlet holes 13. The consumer can observe the floating status of the first float ball 42 through the transparent tube 5 to observe the water filling process. When the first float ball 42 does not float, it is determined that the washing machine has not performed a water filling operation, or when the filter screen is clogged, the floating height of the first float ball 42 at the corresponding position is limited or it does not float. The combination of the above methods allows for real-time display of the water filling process and convenient observation, enabling consumers to promptly detect situations where the washing machine has not been filled with water or where the water filling device is clogged. The injected water is evenly distributed in the inner drum of the washing machine, and the filter screens in each water inlet tank 12 will not be clogged simultaneously, ensuring a smooth water filling process, extending the service life of the washing machine, and effectively meeting the practical application needs of clothing washing.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water filling device of a self-service washing machine, comprising a base body, a cover body and a floating member; characterized in that: a central through hole is arranged on the top surface of the base body, and a plurality of water filling grooves extending outward from the central through hole are arranged on the top surface of the base body; the end of each water filling groove is provided with a water filling hole penetrating through the bottom surface of the base body; the cover body covers the base body and is sealingly connected with the top surface of the base body; an inlet hole is arranged on the cover body and communicates with the central through hole; a through hole is arranged on the cover body and communicates with the end of each water filling groove and penetrates the cover body from top to bottom; a transparent tube is arranged on the cover body and communicates with the upper end of the through hole; the floating member is arranged at the end of each water filling groove and comprises a rod body movably inserted into the through hole, a first floating ball arranged at the first end of the rod body and located in the transparent tube, and a second floating ball arranged at the second end of the rod body and located in the water filling groove; the second floating ball is movably arranged in the water filling groove and has a floating position away from the water filling hole and a sinking position closing the water filling hole.

2. The water filling device of the self-service washing machine according to claim 1, characterized in that: the bottom surface of each water filling groove is arranged in an inclined manner, and the inclined upper end of the water filling groove is connected with the central through hole.

3. The water filling device of the self-service washing machine according to claim 1, characterized in that: at least one set of hole plates is arranged in each water filling groove; the hole plates are arranged in the water filling groove; the hole plates are provided with filter holes distributed thereon, and the bottom end of each hole plate close to the bottom surface of the water filling groove is provided with a notch.

4. The water filling device of the self-service washing machine according to claim 3, characterized in that: the hole plates are inserted into the base body in an upward-downward manner.

5. The water filling device of the self-service washing machine according to claim 1, characterized in that: a bevel is arranged at the edge position of the water filling hole in each water filling groove; in the sinking position, the bevel communicates with the inside of the water filling hole.

6. The water filling device of the self-service washing machine according to claim 1, characterized in that: a boss structure is arranged on the bottom surface of the base body corresponding to each water filling hole; an expanded portion communicating with the water filling hole is arranged on the boss structure; the expanded portion extends downward from the water filling hole, and the diameter gradually increases.

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