An air conditioning duct filter cleaning device

Abstract

This utility model discloses an air conditioning duct filter cleaning device, belonging to the field of cleaning appliance technology. The utility model includes a housing, a hose connector, and a shower head. A base sleeve is connected to the bottom of the housing, and a brush and a water hole are fixed to the bottom of the base sleeve. A bracket is fixed to one side of the housing, and a pressure rod passes through the top side of the housing. A handle is fixed to the other side of the housing, and a water inlet connector is connected to one side of the handle. This utility model, through the arrangement of the handle, water inlet connector, brush, and water hole, features a 1 / 4-point external thread design for direct and stable connection to the hose connectors of most shower heads, eliminating the need for additional adapters and significantly reducing the difficulty of water supply connection. The brush and water hole are integrated simultaneously at the bottom of the base sleeve, allowing for simultaneous water spraying during brushing, improving the rinsing effect of impurities and avoiding the cumbersome operation of separating the brush and water sprayer. This achieves integrated and convenient cleaning operation.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a cleaning device for air conditioning duct filters. Background Technology

[0002] Air conditioning ducts are the key channels responsible for air delivery in air conditioning systems. One end connects to the air inlet of the indoor unit and the other end connects to the indoor air outlet. Because they are in a state of constant air circulation, dust, fibers and other impurities in the air can easily accumulate inside the duct. Therefore, filter components need to be installed at the air inlet to maintain the cleanliness of the delivered air and the cleanliness of the duct.

[0003] Air conditioning filters are filtering components installed at the air inlet of air conditioning ducts, commonly made of nylon or non-woven fabric. Their main function is to trap dust, hair, and particulate impurities in the air, preventing them from entering the air conditioner and damaging core components such as the fan and heat exchanger. They also reduce indoor air pollutants and ensure good indoor air quality. Filter sizes vary significantly depending on the application; household air conditioner filters are smaller, while filters for larger systems like central air conditioning systems are typically larger.

[0004] Air conditioning filters gradually accumulate impurities during use. If not cleaned regularly, this can increase airflow resistance and reduce the air conditioner's heat exchange efficiency, thus requiring regular cleaning. Current cleaning methods primarily involve brushes and faucets or showerheads: small filters can be placed directly under a fixed faucet in a sink or similar location and brushed, which is relatively convenient. However, for large filters such as central air conditioning filters, a fixed faucet cannot cover the entire cleaning area. Workers must use one hand to hold a brush and the other to spray water, which lacks effective restraint and can cause the filter to move during brushing, increasing the difficulty of the operation and potentially resulting in incomplete cleaning. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an air conditioning duct filter cleaning device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air conditioning duct filter cleaning device, comprising a housing, a hose connector and a spray nozzle, wherein a bottom sleeve is connected to the bottom of the housing, and a brush and a water hole are respectively fixed to the bottom of the bottom sleeve; a bracket is fixed to one side of the housing, and a pressure rod passes through the top side of the housing; a handle is fixed to the other side of the housing, and a water inlet connector is connected to one side of the handle.

[0007] By adopting the above technical solution, the water spraying component and the brushing component can be integrated into the same device. At the same time, the handle can be used to achieve one-handed operation or the spray head can be limited by the bracket and the pressure rod. The operator does not need to hold the brush and the spray head with both hands separately, which effectively solves the problem of the filter screen moving easily and the operation being cumbersome when cleaning large-size filter screens, and achieves an integrated cleaning effect of spraying water and brushing at the same time.

[0008] Furthermore, the longitudinal section of the bottom sleeve is U-shaped, and the inner ring of the bottom sleeve is threadedly connected to the outer ring of the outer shell.

[0009] By adopting the above technical solution, the threaded connection method facilitates the disassembly of the bottom sleeve in the later stage. When the brush is worn or the water hole is blocked, the brush can be replaced quickly or the water hole can be cleaned, reducing the difficulty and cost of device maintenance.

[0010] Furthermore, multiple brushes are provided, and the multiple brushes are distributed in a circular array.

[0011] By adopting the above technical solution, the multiple brushes distributed in a ring array increase the coverage area of ​​the brushes. When the staff holds the handle and moves the device, they can simultaneously brush different parts of the filter screen, improving the comprehensiveness and efficiency of the filter screen brushing.

[0012] Furthermore, the water holes are provided in multiple locations, and the multiple water holes are distributed at equal intervals in a firework pattern.

[0013] By adopting the above technical solution, the firework-shaped equidistantly distributed water holes can make the water flow diffuse and spray out evenly. The water spray range can be adapted to the ring array of brushes, ensuring that while the brushes are cleaning the filter screen, the water flow can simultaneously rinse away impurities in the cleaning area, reducing impurity residue and further enhancing the cleaning effect.

[0014] Furthermore, the water inlet connector is a 1 / 4-point male thread connector, and the hose connector is a standard 1 / 4-point female thread connector. The hose connector and the water inlet connector are connected and disconnected by means of threads.

[0015] By adopting the above technical solution, the combination of 1 / 4-point external thread and 1 / 4-point internal thread can be directly adapted to most shower hoses on the market without the need for additional adapters. Staff can quickly connect or disconnect the water inlet connector and the hose, reducing the difficulty of adapting the device to the water supply components.

[0016] Furthermore, the longitudinal section of the pressure bar is in the shape of an inverted "T".

[0017] By adopting the above technical solution, the inverted T-shaped pressure bar increases the contact area between the bottom and the shower head, forming a stable contact surface and improving the stability of the shower head's positioning.

[0018] Furthermore, the pressure rod is threadedly connected to the outer casing, and the pressure rod and bracket abut against the spray nozzle.

[0019] By adopting the above technical solution, the threaded connection allows the pressure rod to move up and down along the outer shell. The operator can adjust the distance between the pressure rod and the bracket by rotating the pressure rod, thereby accommodating more sizes of spray heads. The pressure rod and the bracket limit the contact of the spray head, eliminating the need for the operator to hold the spray head with their hands, further freeing up their hands and ensuring that the device can be operated with one hand to complete the cleaning.

[0020] Furthermore, a handwheel is connected to the top of the pressure rod.

[0021] By adopting the above technical solution, the handwheel can increase the contact area between the operator and the pressure bar, reduce the force on the hand when rotating the pressure bar, and avoid the problem of hand slippage or uneven force caused by directly rotating the pressure bar, making the adjustment of the pressure bar more labor-saving and convenient.

[0022] Furthermore, rubber pads are attached to the top of the bracket and the bottom of the pressure rod, and the spray nozzles are in contact with the rubber pads.

[0023] By adopting the above technical solution, the rubber pad has an elastic buffering effect, which can avoid hard contact between the bracket, pressure rod and the spray head, and reduce the wear on the surface of the spray head; at the same time, the rubber pad can increase the friction with the spray head, further improve the stability of the spray head fixation, and reduce the possibility of the spray head shifting or being crushed during the cleaning process.

[0024] In summary, the present invention has the following main advantages: 1. This utility model features a handle, water inlet connector, brush, and water hole. The water inlet connector uses a 1 / 4-point external thread design, which can be directly and stably connected to the hose connectors of most shower heads without the need for additional adapters, greatly reducing the difficulty of water supply connection. The brush and water hole are integrated into the bottom of the base, allowing water to spray simultaneously during the brushing process, which not only improves the removal of impurities but also avoids the cumbersome operation of separating the brush and water spray tool. The handle allows the operator to hold the device with one hand for cleaning while simultaneously supporting the filter screen with the other hand, effectively reducing the movement of the filter screen during the brushing process, reducing the difficulty of operation, and improving cleaning efficiency. This achieves integrated and convenient cleaning operation. 2. This utility model, through the design of the outer shell and the base sleeve, with the base sleeve and the outer shell connected by threads, allows for easy replacement of the entire device when the brush wears out due to long-term use. Simply unscrew the base sleeve to replace the brush and the water hole. This simplifies operation and reduces subsequent maintenance costs. If the water hole is clogged, it can be cleared by using a round rod with a diameter smaller than the water hole, such as a toothpick. This design balances structural stability with ease of maintenance. 3. This utility model, through the setting of the bracket and the pressure rod, allows the spray shower head to be placed on the top of the bracket for some non-standard shower head hose connectors. By rotating the pressure rod, the pressure rod moves down to cooperate with the bracket to abut and limit the spray shower head. It also eliminates the need to hold the device with one hand and the spray shower head with the other, breaking through the limitation of only being compatible with standard connectors. It expands the applicability of the device and ensures safety and portability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the flexible hose connector structure of this utility model; Figure 5 This is a schematic diagram of the structure of the spray shower head of this utility model.

[0026] In the picture: 1. Outer shell; 2. Hose connector; 3. Shower head; 4. Handle; 5. Water inlet connector; 6. Base sleeve; 7. Brush; 8. Water hole; 9. Bracket; 10. Pressure bar. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] Example 1: An air conditioning duct filter cleaning device, such as Figures 1-4As shown, the device includes a housing 1, a hose connector 2, and a shower head 3. A base sleeve 6 is connected to the bottom of the housing 1. The base sleeve 6 has a U-shaped longitudinal section. The inner ring of the base sleeve 6 is threaded to the outer ring of the housing 1. A brush 7 and water holes 8 are fixed to the bottom of the base sleeve 6. Multiple brushes 7 are arranged in a circular array, and multiple water holes 8 are arranged in a firework-like, equidistant pattern. During cleaning, the multiple circular array brushes 7 on the bottom of the base sleeve 6 adhere to the filter screen surface. As the handle 4 is moved, the brushes 7 brush the impurities on the filter screen. Simultaneously, water from inside the housing 1 flows into the base sleeve 6, which is threaded to the housing 1, and is evenly sprayed out through the firework-like, equidistant water holes 8 on the bottom of the base sleeve 6, ensuring precise overlap between the spray area and the brush 7 brushing area. The device operates simultaneously by brushing and spraying water. A handle 4 is fixed to the other side of the outer casing 1, allowing the operator to control the entire device with one hand while naturally supporting the filter screen to be cleaned with the other, effectively reducing the filter screen's movement during brushing. A water inlet connector 5 is connected to one side of the handle 4. The water inlet connector 5 is a 1 / 2 inch male thread connector, while the hose connector 2 is a standard 1 / 2 inch female thread connector. The hose connector 2 and the water inlet connector 5 are connected and disconnected via threads. If the working environment uses a standard 1 / 2 inch female thread hose connector 2, the operator can directly connect and disconnect it to the 1 / 2 inch male thread water inlet connector 5 on the device via threads, allowing external water to enter the outer casing 1 sequentially through the hose connector 2 and the water inlet connector 5, creating a pathway for subsequent water spraying.

[0030] See Figure 1 , Figure 2 , Figure 3 and Figure 5 In the above embodiment, a bracket 9 is fixed on one side of the outer shell 1, and a pressure rod 10 passes through the top side of the outer shell 1. The longitudinal section of the pressure rod 10 is inverted "T" shape. The pressure rod 10 is threadedly connected to the outer shell 1. The pressure rod 10 and the bracket 9 abut against the shower head 3. If a non-standard shower head 3 hose connector 2 cannot be directly connected to the water inlet connector 5, the operator can place the shower head 3 on the top of the bracket 9 fixed on one side of the outer shell 1. Since the pressure rod 10 is threadedly connected to the outer shell 1 and the longitudinal section is inverted "T", the operator can rotate the pressure rod 10 to make it move down along the threaded trajectory and form an upper and lower abutment with the bracket 9, thereby stably limiting the shower head 3 between the bracket 9 and the pressure rod 10.

[0031] Example 2: Based on the above embodiment 1, the following settings are made to facilitate the rotation of the pressure rod 10.

[0032] See Figure 1 , Figure 2 , Figure 3 and Figure 5In the above embodiment, a handwheel is connected to the top of the pressure rod 10. Since the pressure rod 10 is connected to the top of the handwheel, the operator can rotate the pressure rod 10 by turning the handwheel, which is less strenuous than directly turning the pressure rod 10.

[0033] Example 3: Based on the above embodiment 1, in order to reduce the occurrence of the shower head 3 being crushed by the pressure rod 10, the following settings are now implemented.

[0034] See Figure 1 , Figure 2 , Figure 3 and Figure 5 In the above embodiment, rubber pads are attached to the top of the bracket 9 and the bottom of the pressure rod 10. The spray head 3 is in contact with the rubber pads. When the pressure rod 10 and the bracket 9 cooperate to limit the spray head 3, the rubber pads will directly contact the spray head 3 for buffering, reducing the risk of the spray head 3 being crushed.

[0035] The implementation principle of this utility model is as follows: First, the outer shell 1, handle 4 and bracket 9 are formed by injection molding. The internal water channel can be formed by core pulling of mold or by milling and drilling. The water inlet connector 5 is fixed to one side of the handle 4 by thread and sealant. The bottom sleeve 6 is injection molded separately, and the water outlet 8 is processed by drilling. Then, the bristles of the brush 7 are fixed to the bottom sleeve 6 by a bristle implantation machine for traditional brush processing. Before using this device to clean the air conditioning duct filter, the operator removes the filter from the air inlet of the air conditioning duct. Then, the operator first connects the water supply and secures the spray nozzle 3. If the working environment uses a standard 1 / 2-inch internal thread hose connector 2, the operator can directly connect it to the 1 / 2-inch external thread water inlet connector 5 on the device via threaded connection, allowing external water to enter the housing 1 through the hose connector 2 and water inlet connector 5, creating a path for subsequent water spraying. If a non-standard spray nozzle 3 hose connector 2 cannot be directly connected to the water inlet connector 5, the operator can place the spray nozzle 3 on top of the bracket 9 fixed to one side of the housing 1, due to pressure... The rod 10 is threaded to the outer casing 1 and has an inverted T-shaped longitudinal section. The operator can rotate the rod 10 to move it downwards along the threaded path. Since a handwheel is connected to the top of the rod 10, the operator can rotate the rod 10 by turning the handwheel, which is less strenuous than directly rotating the rod 10. This creates an upper and lower contact with the bracket 9, thus stably limiting the shower head 3 between the bracket 9 and the rod 10. Simultaneously, rubber pads are attached to the top of the bracket 9 and the bottom of the rod 10. When the rod 10 and bracket 9 work together to limit the shower head 3, the rubber pads directly contact and cushion the shower head 3, reducing the risk of the shower head 3 being crushed. The operator does not need to hold both the device and the shower head 3 simultaneously. After the water supply and spray head 3 are fixed, the operator can hold the handle 4. At this time, the operator can control the operation direction of the entire device with one hand, and the other hand can naturally support the filter screen to be cleaned, effectively reducing the situation where the filter screen moves due to force during the brushing process. During the cleaning operation, the multiple ring array of brushes 7 at the bottom of the base sleeve 6 are attached to the surface of the filter screen. As the operator moves the handle 4, the brushes 7 can brush the impurities on the filter screen. At the same time, the water source inside the outer shell 1 will flow into the interior of the base sleeve 6 which is threaded to the outer shell 1, and be evenly sprayed out through the firework-shaped water holes 8 at equal intervals at the bottom of the base sleeve 6, so that the water spraying area and the brushing area of ​​the brushes 7 are precisely overlapped, realizing the simultaneous operation of brushing and spraying water. This not only improves the flushing effect of impurities, but also avoids the cumbersome operation of separating the brushes 7 and the water spraying tools in traditional cleaning, achieving integrated cleaning. After prolonged use, if the brush 7 becomes worn and its cleaning effect decreases, or if the water hole 8 becomes clogged due to the accumulation of impurities, the staff only needs to unscrew the bottom sleeve 6 to replace the brush 7 entirely, as the bottom sleeve 6 is threadedly connected to the outer shell 1. There is no need to replace the entire device. If the water hole 8 is clogged, staff can use an object with a diameter smaller than the water hole 8, such as a toothpick, to unclog it. This is simple to operate and has low maintenance costs. Furthermore, it can not only be used to unclog the water hole 8 and replace damaged brushes 7, but also allows for the selection of different brush materials for different filter materials. For example, for high-strength metal filters, harder bristles such as stiff nylon can be selected, while for lower-strength materials such as nylon and polyester, softer bristles such as soft nylon can be selected. Throughout the entire process, the device does not rely on water pumps, motors, or other electrical components, avoiding the safety hazard of electric leakage. Its lightweight overall structure also makes it easier for cleaning service personnel to carry and operate flexibly on-site.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An air conditioning duct filter cleaning device, comprising a housing (1), a hose connector (2), and a spray nozzle (3), characterized in that: The bottom of the outer shell (1) is connected to a bottom sleeve (6), and a brush (7) and a water hole (8) are fixed to the bottom of the bottom sleeve (6); a bracket (9) is fixed to one side of the outer shell (1), and a pressure rod (10) passes through the top side of the outer shell (1); a handle (4) is fixed to the other side of the outer shell (1), and a water inlet connector (5) is connected to one side of the handle (4).

2. The air conditioning duct filter cleaning device according to claim 1, characterized in that: The longitudinal section of the bottom sleeve (6) is U-shaped, and the inner ring of the bottom sleeve (6) is threadedly connected to the outer ring of the outer shell (1).

3. The air conditioning duct filter cleaning device according to claim 1, characterized in that: Multiple brushes (7) are provided, and the multiple brushes (7) are distributed in a ring array.

4. The air conditioning duct filter cleaning device according to claim 1, characterized in that: The water holes (8) are provided in multiple ways, and the multiple water holes (8) are distributed at equal intervals in a firework pattern.

5. The air conditioning duct filter cleaning device according to claim 1, characterized in that: The water inlet connector (5) is a 1 / 4-point male thread connector, and the hose connector (2) is a standard 1 / 4-point female thread connector. The hose connector (2) and the water inlet connector (5) are connected and disconnected by means of threads.

6. The air conditioning duct filter cleaning device according to claim 1, characterized in that: The longitudinal section of the pressure bar (10) is in the shape of an inverted "T".

7. The air conditioning duct filter cleaning device according to claim 6, characterized in that: The pressure rod (10) is threadedly connected to the outer shell (1), and the pressure rod (10) and the bracket (9) abut against the spray nozzle (3).

8. The air conditioning duct filter cleaning device according to claim 6, characterized in that: A handwheel is connected to the top of the pressure rod (10).

9. The air conditioning duct filter cleaning device according to claim 7, characterized in that: Rubber pads are attached to the top of the bracket (9) and the bottom of the pressure rod (10), and the spray nozzle (3) is in contact with the rubber pads.

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