Drain pipe cleaning device for subway air conditioner

Abstract

The utility model provides a drainage pipe cleaning device for a subway air conditioner. The drainage pipe cleaning device comprises a cleaning box, a first plugging piece, a second plugging piece and an air suction assembly. The cleaning box is arranged in a subway carriage and connected with an air conditioner drainage pipe, and the cleaning box is used for collecting condensate water in the drainage pipe. The first plugging piece is connected with a water outlet of the air conditioner drainage pipe, and a first avoiding hole and a first air outlet are formed in the first plugging piece; the second plugging piece is rotationally connected with the first plugging piece, and a second air outlet is formed in the second plugging piece; the air suction assembly is arranged on the inner wall of the cleaning box and communicates with the second air outlet; and the second plugging piece has a first state that the second plugging piece rotates to plug the first avoiding hole and enables the first air outlet to be aligned and communicated with the second air outlet, and also has a second state that the second plugging piece rotates to open the first avoiding hole and plugs the first air outlet. According to the drain pipe cleaning device for the subway air conditioner, the workload of operators can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of subway air conditioning technology, specifically relating to a drainage pipe cleaning device for subway air conditioning. Background Technology

[0002] The main functions of subway air conditioning are cooling and ventilation. During operation, subway air conditioning systems produce condensate, and excessive condensate can affect subway operation. Typically, condensate is collected or treated using water storage pans or centralized drainage systems to prevent direct discharge into the surrounding environment and to provide reusable water resources.

[0003] During the process of condensate flowing from the air conditioner into the water storage pan, particulate impurities in the condensate can easily adhere to the inner wall of the drain pipe. Over time, this can cause blockages in the drain pipe, making it difficult for the condensate flowing through it to drain. The accumulation of condensate can lead to leaks in the subway air conditioner.

[0004] In existing technology, when the drain pipe of a subway air conditioner becomes clogged, operators need to disassemble the drain pipe filter, unclog the drain pipe, and then reinstall the drain pipe filter after unclogging. The process of unclogging the pipe is cumbersome, and due to the large number of subway cars, the workload for operators is enormous. Utility Model Content

[0005] This utility model provides a cleaning device for drainage pipes of subway air conditioners, which aims to optimize the operation of unblocking subway air conditioner drainage pipes and reduce the workload of operators.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cleaning device for a subway air conditioning drain pipe is provided, comprising a cleaning box, a first sealing member, a second sealing member, and an air intake assembly; the cleaning box is located at the bottom of the subway car and connected to the air conditioning drain pipe, and is used to collect condensate from the drain pipe; the first sealing member is connected to the outlet of the air conditioning drain pipe, and has a first clearance hole and a first air outlet; the second sealing member is rotatably connected to the first sealing member, and has a second air outlet; the air intake assembly is located on the inner wall of the cleaning box and is connected to the second air outlet; wherein, the second sealing member has a first state of rotating to block the first clearance hole and aligning the first air outlet with the second air outlet, and a second state of rotating to open the first clearance hole and block the first air outlet.

[0007] In one possible implementation, the first sealing element includes a first sealing ring and a first sealing disc. The first sealing ring is sleeved on the air conditioning drain pipe, and the first sealing disc is connected to the first sealing ring. The first sealing disc is provided with a first clearance hole and a first air outlet, and the first air outlet is coaxial with the first sealing disc.

[0008] In one possible implementation, the second sealing element includes a second sealing ring, a second sealing disc, and an air outlet pipe; the second sealing ring is rotatably connected to the first sealing ring; the second sealing disc is connected to the second sealing ring and fits tightly against the first sealing disc, the second sealing disc is provided with a second clearance hole and a second air outlet, the second air outlet is coaxial with the second sealing disc; the air outlet pipe is connected to the second sealing disc, one end of the air outlet pipe is connected to the second air outlet, and the other end is connected to the suction assembly.

[0009] In one possible implementation, the second air outlet has a sealing surface inside, and when the second sealing element is in the second state, the sealing surface blocks the first air outlet.

[0010] In one possible implementation, the air intake assembly includes an air pump and an air intake tube. The air pump is located on the inner wall of the cleaning chamber and its output end is connected to the air intake tube. The air intake tube is rotatably connected to the air outlet tube.

[0011] In one possible implementation, the subway air conditioning drain pipe cleaning device also includes a rotary drive, the output end of which is connected to the air outlet pipe, and the rotary drive is used to control the rotation of the air outlet pipe.

[0012] In one possible implementation, the exhaust pipe is connected to the output end of the rotary drive via a transmission component.

[0013] In one possible implementation, the transmission component includes a first gear and a second gear. The first gear is sleeved on the air outlet pipe, and the second gear is connected to the output end of the rotary drive component. The first gear and the second gear are meshed together.

[0014] In one possible implementation, a filter is provided on the second air outlet.

[0015] In one possible implementation, the cleaning box contains a collection bucket located below the outlet of the air conditioner drain pipe.

[0016] The beneficial effects of the subway air conditioner drain pipe cleaning device provided by this utility model are as follows: Compared with the prior art, this utility model provides a first sealing member with a first clearance hole and a first air outlet at the outlet of the air conditioner drain pipe, and switches between a first state and a second state via a second sealing member rotatably connected to the first sealing member to achieve the closure and opening of the outlet. When the second sealing member is in the first state, the first sealing member cooperates with the second sealing member to block the outlet of the drain pipe, and the air suction component connects the second air outlet and the first air outlet to suck up the drain pipe, thereby clearing the blockage. After clearing, rotating the second sealing member switches it to the second state, opening the first clearance hole to discharge the condensate in the drain pipe. The relative rotation of the first and second sealing members achieves the closure and opening of the drain pipe outlet, which, in conjunction with the air suction component, allows for rapid clearing of the drain pipe when it is blocked, reducing the workload of operators and improving work efficiency. Attached Figure Description

[0017] Figure 1 A front view structural schematic diagram of the subway air conditioning drain pipe cleaning device provided in this embodiment of the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the first sealing component used in an embodiment of the present utility model;

[0019] Figure 3 This is an exploded structural diagram of the sealing component used in an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the air intake component used in the embodiment of this utility model.

[0021] In the diagram: 10. Cleaning box; 11. Collection bucket; 20. First sealing component; 21. First sealing ring; 22. First sealing disc; 221. First clearance hole; 222. First air outlet; 30. Second sealing component; 31. Second sealing ring; 32. Second sealing disc; 321. Second clearance hole; 322. Second air outlet; 3221. Sealing surface; 3222. Filter screen; 33. Air outlet pipe; 40. Suction assembly; 41. Air pump; 42. Suction pipe; 50. Rotary drive component; 60. Transmission component; 61. First gear; 62. Second gear; 70. Air conditioner drain pipe; 80. Subway car. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0024] Please refer to the following: Figures 1 to 4 The cleaning device for drain pipes of subway air conditioners provided by this utility model will now be described. The subway air conditioning drain pipe cleaning device includes a cleaning box 10, a first sealing member 20, a second sealing member 30, and an air intake assembly 40. The cleaning box 10 is located at the bottom of the subway car 80 and connected to the air conditioning drain pipe 70. The cleaning box 10 is used to collect condensate in the drain pipe. The first sealing member 20 is connected to the outlet of the air conditioning drain pipe 70. The first sealing member 20 is provided with a first clearance hole 221 and a first air outlet 222. The second sealing member 30 is rotatably connected to the first sealing member 20. The second sealing member 30 is provided with a second air outlet 322. The air intake assembly 40 is located on the inner wall of the cleaning box 10 and is connected to the second air outlet 322. The second sealing member 30 has a first state in which it rotates to block the first clearance hole 221 and aligns the first air outlet 222 with the second air outlet 322. It also has a second state in which it rotates to open the first clearance hole 221 and block the first air outlet 222.

[0025] It should be noted that the subway air conditioner is located on the roof of the subway car 80, and the air conditioner drain pipe 70 is located in the interlayer of the side wall of the subway car 80, with one end connected to the subway air conditioner and the other end extending into the cleaning box 10. The condensate water generated by the subway air conditioner enters the cleaning box 10 for collection, providing reusable water resources. The second sealing member 30 is rotatably connected to the first sealing member 20. When the second sealing member 30 is in the first state, it can block the first clearance hole 221 and connect the first air outlet 222 with the second air outlet 322. When the air conditioner drain pipe 70 is blocked, the second sealing member 30 is in the first state, which can block the first clearance hole 221 and form a sealed space inside the air conditioner drain pipe 70. The air intake component 40 draws air from the drain pipe through the connection to the second air outlet 322, creating a negative pressure between the blocked part and the outlet of the air conditioner drain pipe 70, causing the particulate impurities accumulated at the blocked part to disperse and flow into the cleaning box 10. After the air conditioner drain pipe 70 is cleared, the second sealing member 30 is rotated and switched to the second state, which allows the first clearance hole 221 to open, allowing the condensate in the air conditioner drain pipe 70 to enter the cleaning box 10 through the first clearance hole 221.

[0026] The beneficial effects of the subway air conditioner drain pipe cleaning device provided by this utility model are as follows: Compared with the prior art, this utility model provides a first sealing member 20 with a first clearance hole 221 and a first air outlet 222 at the outlet of the air conditioner drain pipe 70, and achieves the closing and opening of the outlet by switching between a first state and a second state through a second sealing member 30 rotatably connected to the first sealing member 20. When the second sealing member 30 is in the first state, the first sealing member 20 cooperates with the second sealing member 30 to block the outlet of the drain pipe, and the second air outlet 322 and the first air outlet 222 are connected by the suction component 40 to draw out the drain pipe, thereby clearing the blockage. After clearing, the second sealing member 30 is rotated to switch to the second state, and the first clearance hole 221 opens to drain the condensate in the drain pipe. The relative rotation of the first sealing member 20 and the second sealing member 30 enables the opening and closing of the drain outlet, which works in conjunction with the suction component 40 to clear blockages. This allows for rapid unblocking of the drain pipe when it is clogged, reducing the workload of operators and improving work efficiency.

[0027] In one possible implementation, please refer to Figure 2 The first sealing component 20 includes a first sealing ring 21 and a first sealing disc 22. The first sealing ring 21 is sleeved on the air conditioning drain pipe 70. The first sealing disc 22 is connected to the first sealing ring 21. The first sealing disc 22 is provided with a first clearance hole 221 and a first air outlet 222. The first air outlet 222 is coaxial with the first sealing disc 22.

[0028] It should be noted that the first sealing disc 22 can be circular, the first clearance hole 221 can be fan-shaped, and the first air outlet 222 can also be fan-shaped. After the first sealing ring 21 is fitted onto the air conditioner drain pipe 70, the second sealing member 30 and the first sealing disc 22 rotate relative to each other. When the air conditioner drain pipe 70 is blocked, the second sealing member 30 switches to the first state. The second sealing member 30 can block the first clearance hole 221 and connect the first air outlet 222 with the second air outlet 322, so that a sealed space is formed inside the drain pipe, which facilitates the suction assembly 40 to perform suction and unblocking.

[0029] In one possible implementation, please refer to Figure 3 The second sealing component 30 includes a second sealing ring 31, a second sealing disc 32, and an air outlet pipe 33; the second sealing ring 31 is rotatably connected to the first sealing ring 21; the second sealing disc 32 is connected to the second sealing ring 31 and fits tightly against the first sealing disc 22, the second sealing disc 32 is provided with a second clearance hole 321 and a second air outlet 322, the second air outlet 322 is coaxial with the second sealing disc 32; the air outlet pipe 33 is connected to the second sealing disc 32, one end of the air outlet pipe 33 is connected to the second air outlet 322; the other end is connected to the suction assembly 40.

[0030] It should be noted that the second sealing ring 31 is rotatably connected to the first sealing ring 21 on the same axis. When the second sealing member 30 is in the first state, the first sealing disc 22 blocks the second clearance hole 321, the second sealing disc 32 blocks the first clearance hole 221, and the second air outlet 322 communicates with the first air outlet 222; when the second sealing member 30 is in the second state, the first clearance hole 221 is aligned with the second clearance hole 321, and the second sealing member 30 blocks the first air outlet 222. The second sealing disc 32 is tightly fitted to the first sealing disc 22, and a sealing ring is affixed inside the second sealing disc 32 to prevent outside gas from entering the air outlet pipe 33 through the connection gap between the first sealing disc 22 and the second sealing disc 32 when the suction assembly 40 is sucking gas from the air conditioner drain pipe 70, thus ensuring the effectiveness of the air conditioner drain pipe 70 unblocking operation.

[0031] In one possible implementation, please refer to Figure 3 The second air outlet 322 has a sealing surface 3221 inside. When the second sealing member 30 is in the second state, the sealing surface 3221 seals the first air outlet 222.

[0032] It should be noted that when the air conditioner drain pipe 70 is not blocked, the second sealing member 30 is in the second state, the first clearance hole 221 is aligned with the second clearance hole 321, and the sealing part is used to block the first air outlet 222. The condensate in the drain pipe can enter the collection chamber through the first clearance hole 221 and the second clearance hole 321, while preventing the condensate from entering the air outlet pipe 33 through the first air outlet 222 and the second air outlet 322. After the air conditioner drain pipe 70 is blocked, the second sealing member 30 switches to the first state, and the second sealing plate 32 rotates relative to the first sealing plate 22. The first sealing plate 22 blocks the second clearance hole 321, and the second sealing plate 32 blocks the first clearance hole 221. The second air outlet 322 is connected to the first air outlet 222. At this time, a sealed space is formed inside the air conditioner drain pipe 70. The air suction component 40 connects to the inside of the air conditioner drain pipe 70 to perform suction and clear the air conditioner drain pipe 70.

[0033] In one possible implementation, please refer to Figure 1 and Figure 4 The suction assembly 40 includes an air pump 41 and a suction pipe 42. The air pump 41 is located on the inner wall of the cleaning box 10 and its output end is connected to the suction pipe 42. The suction pipe 42 is rotatably connected to the air outlet pipe 33.

[0034] It should be noted that the air pump 41 can be a miniature suction pump. The air pump 41 is connected to the suction pipe 42, which connects to the exhaust pipe 33 and draws air from the air conditioner drain pipe 70. This creates negative pressure between the blocked area and the drain outlet, breaking down the accumulated blockages inside the air conditioner drain pipe 70 and clearing the blockage. The suction pipe 42 is rotatably connected to the exhaust pipe 33 to prevent deformation of the suction pipe 42 due to rotation of the exhaust pipe 33, which could affect the suction of air from the air intake assembly 40.

[0035] In one possible implementation, please refer to Figure 1 and Figure 4 The subway air conditioning drain pipe cleaning device also includes a rotary drive 50, the output end of which is connected to the air outlet pipe 33, and the rotary drive 50 is used to control the rotation of the air outlet pipe 33.

[0036] It should be noted that the rotary drive 50 can be a servo motor, capable of controlling the rotation angle to precisely control the switching of the working state of the second sealing component 30. The rotary drive 50 is located on the inner wall of the cleaning box 10 and is spaced apart from the air pump 41. The output end of the rotary drive 50 is connected to the air outlet pipe 33, and can control the rotation of the air outlet pipe 33 by outputting rotational force, thereby driving the second sealing component 30 to switch working states, so that the air conditioning drain pipe 70 can be automatically unblocked.

[0037] In one possible implementation, please refer to Figure 1 and Figure 4 The exhaust pipe 33 is connected to the output end of the rotary drive 50 via the transmission component 60.

[0038] It should be noted that the water outlet pipe is connected to the air pump 41, so the output end of the rotary drive 50 is not directly connected to the air outlet pipe 33. The direction of the output end of the rotary drive 50 is changed by the transmission component 60, and the rotation of the air outlet pipe 33 is indirectly controlled by transmitting the rotational force output by the rotary drive 50.

[0039] In one possible implementation, please refer to Figure 4 The transmission component 60 includes a first gear 61 and a second gear 62. The first gear 61 is sleeved on the air outlet pipe 33, and the second gear 62 is connected to the output end of the rotary drive component 50. The first gear 61 and the second gear 62 are meshed together.

[0040] It should be noted that the first gear 61 is sleeved on the air outlet pipe 33, and the second gear 62 is connected to the output end of the rotary drive component 50. The rotary drive component 50 drives the second gear 62 to rotate. The second gear 62 meshes with the first gear 61 and can drive the first gear 61 to rotate, transmitting the rotational force provided by the rotary drive component 50 to the air outlet pipe 33 to make the air outlet pipe 33 rotate.

[0041] In one possible implementation, please refer to Figure 3 A filter screen 3222 is provided on the second air outlet 322.

[0042] It should be noted that when the air intake assembly 40 draws air from the air conditioner drain pipe 70, the filter 3222 can prevent impurities in the air conditioner drain pipe 70 from entering the air outlet pipe 33, thus preventing impurities from entering the air pump 41 through the air outlet pipe 33 and causing the air pump 41 to malfunction.

[0043] In one possible implementation, please refer to Figure 1 The cleaning box 10 has a collection bucket 11 inside, which is located below the water outlet of the air conditioner drain pipe 70.

[0044] It should be noted that the collection tank 11 may have a filter layer. After the condensate enters the collection tank 11 through the outlet, the filter layer can filter out impurities in the condensate. Operators can collect and discharge the condensate in the collection tank 11 regularly to obtain reusable water resources and prevent the condensate in the collection tank 11 from entering the subway car 80 and affecting the subway operation.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning device for drain pipes used in subway air conditioning systems, characterized in that, include: A cleaning box is located at the bottom of the subway car and connected to the air conditioning drain pipe. The cleaning box is used to collect the condensate in the drain pipe. The first sealing component is connected to the outlet of the air conditioner drain pipe, and the first sealing component is provided with a first clearance hole and a first air outlet; The second sealing element is rotatably connected to the first sealing element, and the second sealing element is provided with a second air outlet; An air intake assembly is disposed on the inner wall of the cleaning chamber, and the air intake assembly is connected to the second air outlet. The second sealing member has a first state in which it is rotated to block the first clearance hole and aligns the first air outlet with the second air outlet, and a second state in which it is rotated to open the first clearance hole and block the first air outlet.

2. The subway air conditioning drain pipe cleaning device as described in claim 1, characterized in that, The first sealing component includes a first sealing ring and a first sealing disc. The first sealing ring is sleeved on the air conditioner drain pipe. The first sealing disc is connected to the first sealing ring. The first sealing disc is provided with a first clearance hole and a first air outlet. The first air outlet is coaxial with the first sealing disc.

3. The subway air conditioning drain pipe cleaning device as described in claim 2, characterized in that, The second sealing component includes: The second sealing ring is rotatably connected to the first sealing ring; The second sealing disc is connected to the second sealing ring and fits tightly with the first sealing disc. The second sealing disc is provided with a second clearance hole and a second air outlet. The second air outlet is coaxial with the second sealing disc. An air outlet pipe is connected to the second sealing plate, with one end of the air outlet pipe communicating with the second air outlet and the other end connected to the air intake assembly.

4. The subway air conditioning drain pipe cleaning device as described in claim 3, characterized in that, The second air outlet has a sealing surface inside. When the second sealing member is in the second state, the sealing surface blocks the first air outlet.

5. The subway air conditioning drain pipe cleaning device as described in claim 3, characterized in that, The air intake assembly includes an air pump and an air intake pipe. The air pump is located on the inner wall of the cleaning chamber and its output end is connected to the air intake pipe. The air intake pipe is rotatably connected to the air outlet pipe.

6. The subway air conditioning drain pipe cleaning device as described in claim 3, characterized in that, The subway air conditioning drain pipe cleaning device also includes a rotary drive component, the output end of which is connected to the air outlet pipe, and the rotary drive component is used to control the rotation of the air outlet pipe.

7. The subway air conditioning drain pipe cleaning device as described in claim 6, characterized in that, The air outlet pipe is connected to the output end of the rotary drive component via a transmission component.

8. The subway air conditioning drain pipe cleaning device as described in claim 7, characterized in that, The transmission component includes a first gear and a second gear. The first gear is sleeved on the air outlet pipe, and the second gear is connected to the output end of the rotary drive component. The first gear and the second gear are meshed together.

9. The subway air conditioning drain pipe cleaning device as described in claim 1, characterized in that, A filter screen is provided on the second air outlet.

10. The subway air conditioning drain pipe cleaning device as described in any one of claims 1-9, characterized in that, The cleaning box is equipped with a collection bucket, which is located below the outlet of the air conditioner drain pipe.

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