Temperature difference and humidity self-adaptive regulation and control device for computer server room

Abstract

The invention discloses a computer server room temperature difference and humidity self-adaptive regulation and control device, and relates to the technical field of room temperature and humidity regulation and control. According to the temperature difference and humidity self-adaptive regulation and control device for the computer server room, an annular air supply frame is arranged in an air supply pipeline, and the annular air supply frame can be driven to rotate in the air supply pipeline in the air supply process, so that air can be outwards conveyed in a fan shape through a plurality of exhaust outlets; and meanwhile, when the exhaust outlet is in a sealed state, air can be continuously conveyed along the air supply pipeline until the air passes through the next open exhaust outlet to be exhausted, the air conveying and exhausting uniformity is effectively improved, the heat dissipation efficiency in the machine room is guaranteed, meanwhile, the air conditioner can be suitable for a large-area place, and the using effect of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of temperature and humidity control in a computer room, and in particular to a temperature difference and humidity self-adaptive control device for a computer server room. Background Art

[0002] Too high or too low temperature and humidity in the computer room will affect the normal operation of the equipment. Therefore, it is necessary to adjust the temperature and humidity through regulating equipment. Referring to the Chinese patent, the announcement number is "CN203928230U" "A temperature and humidity control system in a base station computer room", the patent points out that the connection structure between the existing fresh air fan and the wall of the base station computer room is unreasonable, and there is a gap between the connection between the air outlet of the fresh air fan and the wall, so that external foreign matter will enter the computer room base station, causing the environment in the computer room to deteriorate, and then endangering the normal operation of the communication equipment in the base station computer room, and even causing damage to the communication equipment; but the equipment still has the problem of poor air supply uniformity, which affects the temperature and humidity control inside the computer room. In this regard, we propose a temperature difference and humidity adaptive control device for a computer server computer room to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a device for adaptively controlling temperature difference and humidity in a computer server room, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A temperature difference and humidity adaptive control device for a computer server room, comprising a body, an induced draft fan and a humidity controller are respectively installed inside the body, a main pipeline is connected to the outside of the body, a plurality of air supply terminals are fixed to the outside of the main pipeline, and a plurality of air supply pipelines are connected through the air supply terminals;

[0005] The corresponding air supply ducts are connected with connecting ducts, and a plurality of exhaust ports are provided below the ends of the air supply ducts for conveying air to the interior of the machine room;

[0006] A transmission shaft is rotatably mounted inside the air supply duct, and a transmission blade is fixedly sleeved on the end of the transmission shaft, which is used to drive the transmission shaft to rotate inside the corresponding air supply duct during air supply, and an annular air supply frame is fixedly mounted on one end of the transmission shaft away from the transmission blade;

[0007] A plurality of air supply ports are provided on the outer side of the annular air supply frame, and a counterweight is fixedly mounted on one side of the annular air supply frame away from the air supply ports.

[0008] Preferably, a temperature and humidity monitor is fixedly installed at the bottom of each of the plurality of air supply ducts to monitor the temperature and humidity inside the machine room.

[0009] Preferably, a limiting frame is fixedly installed inside the air supply duct, and the transmission shaft is rotatably connected inside the corresponding limiting frame.

[0010] Preferably, a plurality of fixed shafts are fixedly installed on the inner side of the annular air supply frame, and ends of the plurality of fixed shafts are fixedly connected to the transmission shaft.

[0011] Preferably, a plurality of cleaning brushes are fixedly mounted on the outer side of the annular air supply frame, and the cleaning brushes are used to clean the exhaust port as the annular air supply frame runs.

[0012] Preferably, a baffle is fixedly installed on the outer side of the body to block debris.

[0013] Preferably, a filter assembly is installed inside the main pipeline for filtering the transported air, and the filter assembly includes a filter frame fixed below the main pipeline, a positioning ring is fixed inside the filter frame, and an elastic filter net is fixed inside the positioning ring.

[0014] Preferably, a plurality of positioning bolts are installed between the main pipeline and the filter frame for locking the main pipeline and the filter frame.

[0015] Preferably, a storage cavity is provided inside the filter frame for storing filtered dust, an arc-shaped sealing plate is slidably installed inside the filter frame, and a transmission convex plate is fixedly installed on the top surface of the arc-shaped sealing plate for driving the arc-shaped sealing plate to slide inside the filter frame during air supply to seal the storage cavity, and a support spring is fixedly installed between the end of the arc-shaped sealing plate and the filter frame for driving the arc-shaped sealing plate to reset.

[0016] Preferably, a cleaning shaft is rotatably installed inside the filter frame, and a driving motor is fixedly installed on the outside of the filter frame to drive the cleaning shaft to rotate inside the filter frame, and one end of the cleaning shaft located inside the filter frame is fixedly sleeved with a fixing ring, and a plurality of elastic connecting ropes are fixedly installed on the outside of the fixing ring, and spherical cleaning parts are installed at the ends of the elastic connecting ropes for cleaning the elastic filter net.

[0017] The present invention provides a temperature difference and humidity adaptive control device for a computer server room. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The temperature difference and humidity adaptive control device for the computer server room, through the annular air supply frame provided inside the air supply duct, can simultaneously drive the annular air supply frame to rotate inside the air supply duct during the air supply process, so that the air can be transported outward in a fan shape through multiple exhaust ports. At the same time, when the exhaust ports are in a sealed state, the air can be continuously transported along the air supply duct until it is discharged through the next open exhaust port, thereby effectively improving the uniformity of air transportation and discharge, ensuring the heat dissipation efficiency inside the computer room, and being applicable to places with a larger area, thereby improving the use effect of the equipment.

[0019] (2) The temperature difference and humidity adaptive control device for the computer server room is equipped with a ring-shaped air supply frame. When the air supply stops, as the counterweight block rotates to the bottom, multiple air supply ports and corresponding exhaust ports can be staggered with each other, making the exhaust ports sealed, further preventing external debris from entering the air supply duct, ensuring the normal operation of the equipment while improving the convenience of equipment maintenance.

[0020] (3) The temperature difference and humidity adaptive control device for the computer server room can filter the air through an elastic filter net during the air supply process through the setting of the filter component. When the air supply stops, it can reset along with the elastic filter net and run through the transmission shaft to drive multiple spherical cleaning parts to hit the elastic filter net, so that the attached impurities fall into the storage chamber and are automatically collected, thereby improving the maintenance convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Side view;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the machine body of the present invention;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter frame of the present invention;

[0025] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0026] Figure 6 For the present invention Figure 4 Side view;

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the air supply duct of the present invention;

[0028] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0029] Fig. 9 It is a schematic cross-sectional structure diagram of the annular air supply frame of the present invention.

[0030] In the figure: 1. body; 101. baffle; 2. induced draft fan; 3. humidity controller; 4. main duct; 401. air supply terminal; 5. filter frame; 501. storage chamber; 6. drive motor; 7. positioning bolt; 8. positioning ring; 801. elastic filter; 9. arc sealing plate; 901. transmission convex plate; 902. support spring; 10. cleaning shaft; 11. fixing ring; 1101. elastic connecting rope; 1102. spherical cleaning piece; 12. air supply duct; 1201. exhaust port; 13. connecting duct; 14. temperature and humidity monitor; 15. transmission shaft; 1501. limit frame; 16. transmission blade; 17. annular air supply frame; 1701. air supply port; 1702. fixing shaft; 18. counterweight; 19. cleaning brush. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 9 The present invention provides two technical solutions, which specifically include the following embodiments:

[0033] Embodiment 1:

[0034] In the embodiment of the present invention, please refer to Figure 1-Figure 9 A temperature difference and humidity adaptive control device for a computer server room comprises a body 1, an induced draft fan 2 and a humidity controller 3 are respectively installed inside the body 1, a main pipeline 4 is connected to the outside of the body 1, a plurality of air supply terminals 401 are fixed to the outside of the main pipeline 4, and a plurality of air supply pipelines 12 are connected through the air supply terminals 401;

[0035] In the embodiment of the present invention, specifically, the induced draft fan 2 is an existing device, which is used to transport outdoor air to the interior of the machine room;

[0036] In the embodiment of the present invention, specifically, the humidity controller 3 is an existing device for adjusting the humidity of the delivered air;

[0037] In the embodiment of the present invention, specifically, the induced draft fan 2 and the humidity controller 3 are both controlled based on the existing PLC control module;

[0038] In the embodiment of the present invention, further, a connecting pipe 13 is connected between the corresponding air supply pipes 12, and a plurality of exhaust ports 1201 are provided below the ends of the air supply pipes 12 for conveying air to the interior of the machine room;

[0039] Through the operation of the induced draft fan 2, air can be transported to the inside of the main duct 4, and then transported to the inside of the computer room through multiple air supply ducts 12 and multiple exhaust ports 1201, ensuring the heat dissipation effect inside the computer room;

[0040] For further reference, Figure 2 , Figure 7-Figure 9 A transmission shaft 15 is rotatably installed inside the air supply duct 12, and a transmission blade 16 is fixedly sleeved on the end of the transmission shaft 15, which is used to drive the transmission shaft 15 to rotate inside the corresponding air supply duct 12 during the air supply process. An annular air supply frame 17 is fixedly installed on one end of the transmission shaft 15 away from the transmission blade 16, and a plurality of air supply ports 1701 are opened on the outer side of the annular air supply frame 17. A counterweight block 18 is fixedly installed on one side of the annular air supply frame 17 away from the air supply port 1701;

[0041] During the air supply process, as the transmission blades 16 are forced to drive the transmission shaft 15 to rotate inside the air supply duct 12, the annular air supply frame 17 can be driven to rotate inside it at the same time. As the annular air supply frame 17 rotates, when the air supply port 1701 rotates to the position of the exhaust port 1201, the air can be transported outward in a fan shape through multiple exhaust ports 1201. When the position of the air supply port 1701 rotates to be staggered with the exhaust port 1201, the exhaust port 1201 is in a sealed state, and the air can be continuously transported along the air supply duct 12 until it is discharged through the next open exhaust port 1201, thereby effectively improving the uniformity of air transportation and discharge, ensuring the heat dissipation efficiency inside the computer room, and at the same time being suitable for places with a larger area, thereby improving the use effect of the equipment.

[0042] Specifically, through the setting of the counterweight block 18, when the air supply stops, as the transmission blade 16 stops being stressed, the annular air supply frame 17 can rotate inside the air supply duct 12 through the cooperation of the counterweight block 18, until the counterweight block 18 rotates to the bottom of the annular air supply frame 17, at this time, the multiple air supply ports 1701 and the corresponding air exhaust ports 1201 are staggered with each other, and the air exhaust ports 1201 are in a sealed state, further preventing external debris from entering the air supply duct 12, ensuring the normal operation of the equipment while improving the convenience of equipment maintenance;

[0043] Specifically, a temperature and humidity monitor 14 is fixedly installed at the bottom of each of the plurality of air supply ducts 12. The temperature and humidity monitor 14 is an existing device, which is controlled based on a PLC control module and is used to monitor the temperature and humidity inside the computer room;

[0044] Specifically, a limit frame 1501 is fixedly installed inside the air supply duct 12, and the transmission shaft 15 is rotatably connected inside the corresponding limit frame 1501;

[0045] Specifically, a plurality of fixed shafts 1702 are fixedly installed on the inner side of the annular air supply frame 17, and the ends of the plurality of fixed shafts 1702 are fixedly connected to the transmission shaft 15;

[0046] Specifically, a plurality of cleaning brushes 19 are fixedly installed on the outer side of the annular air supply frame 17. The cleaning brushes 19 are used to clean the exhaust port 1201 as the annular air supply frame 17 runs, thereby improving the maintenance convenience of the equipment.

[0047] Specifically, a baffle 101 is fixedly installed on the outer side of the body 1 to block debris;

[0048] Specifically, a control valve is disposed inside each of the plurality of air supply ends 401 . The control valve is controlled based on a PLC control module and is used to control the air volume entering the air supply duct 12 .

[0049] Embodiment 2: Based on Embodiment 1, in the embodiment of the present invention, please refer to Figure 1-Figure 9 A temperature difference and humidity adaptive control device for a computer server room comprises a body 1, an induced draft fan 2 and a humidity controller 3 are respectively installed inside the body 1, a main pipeline 4 is connected to the outside of the body 1, a plurality of air supply terminals 401 are fixed to the outside of the main pipeline 4, and a plurality of air supply pipelines 12 are connected through the air supply terminals 401;

[0050] In the embodiment of the present invention, specifically, the induced draft fan 2 is an existing device, which is used to transport outdoor air to the interior of the machine room;

[0051] In the embodiment of the present invention, specifically, the humidity controller 3 is an existing device for adjusting the humidity of the delivered air;

[0052] In the embodiment of the present invention, specifically, the induced draft fan 2 and the humidity controller 3 are both controlled based on the existing PLC control module;

[0053] In the embodiment of the present invention, further, a connecting pipe 13 is connected between the corresponding air supply pipes 12, and a plurality of exhaust ports 1201 are provided below the ends of the air supply pipes 12 for conveying air to the interior of the machine room;

[0054] Through the operation of the induced draft fan 2, air can be transported to the inside of the main duct 4, and then transported to the inside of the computer room through multiple air supply ducts 12 and multiple exhaust ports 1201, ensuring the heat dissipation effect inside the computer room;

[0055] For further reference, Figure 2 , Figure 7-Figure 9A transmission shaft 15 is rotatably installed inside the air supply duct 12, and a transmission blade 16 is fixedly sleeved on the end of the transmission shaft 15, which is used to drive the transmission shaft 15 to rotate inside the corresponding air supply duct 12 during the air supply process. An annular air supply frame 17 is fixedly installed on one end of the transmission shaft 15 away from the transmission blade 16, and a plurality of air supply ports 1701 are opened on the outer side of the annular air supply frame 17. A counterweight block 18 is fixedly installed on one side of the annular air supply frame 17 away from the air supply port 1701;

[0056] During the air supply process, as the transmission blades 16 are forced to drive the transmission shaft 15 to rotate inside the air supply duct 12, the annular air supply frame 17 can be driven to rotate inside it at the same time. As the annular air supply frame 17 rotates, when the air supply port 1701 rotates to the position of the exhaust port 1201, the air can be transported outward in a fan shape through multiple exhaust ports 1201. When the position of the air supply port 1701 rotates to be staggered with the exhaust port 1201, the exhaust port 1201 is in a sealed state, and the air can be continuously transported along the air supply duct 12 until it is discharged through the next open exhaust port 1201, thereby effectively improving the uniformity of air transportation and discharge, ensuring the heat dissipation efficiency inside the computer room, and at the same time being suitable for places with a larger area, thereby improving the use effect of the equipment.

[0057] Specifically, through the setting of the counterweight block 18, when the air supply stops, as the transmission blade 16 stops being stressed, the annular air supply frame 17 can rotate inside the air supply duct 12 through the cooperation of the counterweight block 18, until the counterweight block 18 rotates to the bottom of the annular air supply frame 17, at this time, the multiple air supply ports 1701 and the corresponding air exhaust ports 1201 are staggered with each other, and the air exhaust ports 1201 are in a sealed state, further preventing external debris from entering the air supply duct 12, ensuring the normal operation of the equipment while improving the convenience of equipment maintenance;

[0058] Specifically, a temperature and humidity monitor 14 is fixedly installed at the bottom of each of the plurality of air supply ducts 12. The temperature and humidity monitor 14 is an existing device, which is controlled based on a PLC control module and is used to monitor the temperature and humidity inside the computer room;

[0059] Specifically, a limit frame 1501 is fixedly installed inside the air supply duct 12, and the transmission shaft 15 is rotatably connected inside the corresponding limit frame 1501;

[0060] Specifically, a plurality of fixed shafts 1702 are fixedly installed on the inner side of the annular air supply frame 17, and the ends of the plurality of fixed shafts 1702 are fixedly connected to the transmission shaft 15;

[0061] Specifically, a plurality of cleaning brushes 19 are fixedly installed on the outer side of the annular air supply frame 17. The cleaning brushes 19 are used to clean the exhaust port 1201 as the annular air supply frame 17 runs, thereby improving the maintenance convenience of the equipment.

[0062] Specifically, a baffle 101 is fixedly installed on the outer side of the body 1 to block debris;

[0063] Furthermore, a filter assembly is installed inside the main pipe 4 for filtering the transported air. The filter assembly includes a filter frame 5, which is fixed below the main pipe 4. A positioning ring 8 is fixed inside the filter frame 5, and an elastic filter net 801 is fixed inside the positioning ring 8.

[0064] Specifically, refer to Figure 3-Figure 6 At this time, it is in the air supply state, and the elastic filter 801 is forced to open outward. When the air supply stops, the elastic filter 801 is reset and opens inward, which is symmetrical with the existing shape, making it easy to collect and clean the filtered impurities;

[0065] A plurality of positioning bolts 7 are installed between the main pipe 4 and the filter frame 5, which are used to lock the main pipe 4 and the filter frame 5, so as to facilitate the disassembly and maintenance of the filter frame 5;

[0066] Furthermore, a storage chamber 501 is provided inside the filter frame 5 for storing filtered dust, an arc-shaped sealing plate 9 is slidably installed inside the filter frame 5, and a transmission convex plate 901 is fixedly installed on the top surface of the arc-shaped sealing plate 9, which is used to drive the arc-shaped sealing plate 9 to slide inside the filter frame 5 during the air supply process to block the storage chamber 501, and a support spring 902 is fixedly installed between the end of the arc-shaped sealing plate 9 and the filter frame 5, which is used to drive the arc-shaped sealing plate 9 to reset, refer to Figure 3-Figure 6 At this time, it is in the air supply state, and the arc-shaped sealing plate 9 is located above the storage chamber 501 to seal it. When the air supply stops, the arc-shaped sealing plate 9 is reset by the supporting spring 902, and the storage chamber 501 is opened. As the elastic filter 801 is reset, the impurities filtered on its surface can fall into the storage chamber 501, completing the collection of impurities and improving the maintenance convenience of the equipment. At the same time, the arc-shaped sealing plate 9 realizes the sealing of the storage chamber 501, which can effectively prevent the impurities in the storage chamber 501 from being taken out during the air supply process, further ensuring the filtering effect;

[0067] Furthermore, a cleaning shaft 10 is rotatably installed inside the filter frame 5, and a driving motor 6 is fixedly installed on the outside of the filter frame 5 for driving the cleaning shaft 10 to rotate inside the filter frame 5. A fixing ring 11 is fixedly sleeved on one end of the cleaning shaft 10 located inside the filter frame 5, and a plurality of elastic connecting ropes 1101 are fixedly installed on the outside of the fixing ring 11, and spherical cleaning parts 1102 are installed at the ends of the elastic connecting ropes 1101 for cleaning the elastic filter 801. When the air supply stops, the driving motor 6 runs, which can drive the cleaning shaft 10 to rotate. At this time, the spherical cleaning part 1102 can be driven to run through the elastic connecting rope 1101. As the spherical cleaning part 1102 contacts the reset elastic filter 801, the elastic filter 801 can be hit to cause impurities attached to its surface to fall into the storage chamber 501, thereby further improving the use effect of the equipment.

[0068] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0069] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A temperature difference and humidity adaptive control device for a computer server room, comprising a body (1), wherein an induced draft fan (2) and a humidity controller (3) are respectively installed inside the body (1), characterized in that: The outside of the machine body (1) is connected to a main pipeline (4), a plurality of air supply terminals (401) are fixed to the outside of the main pipeline (4), and a plurality of air supply pipelines (12) are connected via the air supply terminals (401); A connecting pipe (13) is connected between the corresponding air supply pipes (12), and a plurality of exhaust ports (1201) are provided below the ends of the air supply pipes (12) for conveying air to the interior of the machine room; A transmission shaft (15) is rotatably mounted inside the air supply duct (12), and a transmission blade (16) is fixedly sleeved on the end of the transmission shaft (15) for driving the transmission shaft (15) to rotate inside the corresponding air supply duct (12) during air supply, and an annular air supply frame (17) is fixedly mounted on one end of the transmission shaft (15) away from the transmission blade (16); A plurality of air supply ports (1701) are provided on the outer side of the annular air supply frame (17), and a counterweight block (18) is fixedly mounted on a side of the annular air supply frame (17) away from the air supply ports (1701).

2. A computer server room temperature difference and humidity adaptive control device according to claim 1, characterized in that: A temperature and humidity monitor (14) is fixedly installed at the bottom of each of the plurality of air supply ducts (12) for monitoring the temperature and humidity inside the machine room.

3. The temperature difference and humidity adaptive control device for a computer server room according to claim 1, characterized in that: A limiting frame (1501) is fixedly installed inside the air supply duct (12), and the transmission shaft (15) is rotatably connected inside the corresponding limiting frame (1501).

4. The temperature difference and humidity adaptive control device for a computer server room according to claim 1, characterized in that: A plurality of fixed shafts (1702) are fixedly mounted on the inner side of the annular air supply frame (17), and the ends of the plurality of fixed shafts (1702) are fixedly connected to the transmission shaft (15).

5. The temperature difference and humidity adaptive control device for a computer server room according to claim 1, characterized in that: A plurality of cleaning brushes (19) are fixedly mounted on the outer side of the annular air supply frame (17), and the cleaning brushes (19) are used to clean the air outlet (1201) as the annular air supply frame (17) moves.

6. The temperature difference and humidity adaptive control device for a computer server room according to claim 1, characterized in that: A baffle (101) is fixedly mounted on the outer side of the machine body (1) to block debris.

7. The temperature difference and humidity adaptive control device for a computer server room according to claim 1, characterized in that: A filter assembly is installed inside the main pipeline (4) for filtering the transported air. The filter assembly comprises a filter frame (5). The filter frame (5) is fixed below the main pipeline (4). A positioning ring (8) is fixed inside the filter frame (5). An elastic filter net (801) is fixed inside the positioning ring (8).

8. The temperature difference and humidity adaptive control device for a computer server room according to claim 7, characterized in that: A plurality of positioning bolts (7) are installed between the main pipeline (4) and the filter frame (5) for locking the main pipeline (4) and the filter frame (5).

9. The temperature difference and humidity adaptive control device for a computer server room according to claim 7, characterized in that: The filter frame (5) is provided with a storage chamber (501) for storing filtered dust. An arc-shaped sealing plate (9) is slidably mounted inside the filter frame (5). A driving convex plate (901) is fixedly mounted on the top surface of the arc-shaped sealing plate (9) for driving the arc-shaped sealing plate (9) to slide inside the filter frame (5) during air supply to seal the storage chamber (51). A supporting spring (902) is fixedly mounted between the end of the arc-shaped sealing plate (9) and the filter frame (5) for driving the arc-shaped sealing plate (9) to reset.

10. A computer server room temperature difference and humidity adaptive control device according to claim 9, characterized in that: A cleaning shaft (10) is rotatably mounted inside the filter frame (5), and a driving motor (6) is fixedly mounted on the outside of the filter frame (5) for driving the cleaning shaft (10) to rotate inside the filter frame (5). One end of the cleaning shaft (10) located inside the filter frame (5) is fixedly sleeved with a fixing ring (11), and a plurality of elastic connecting ropes (1101) are fixedly mounted on the outside of the fixing ring (11), and spherical cleaning parts (1102) are mounted at the ends of the elastic connecting ropes (1101) for cleaning the elastic filter net (801).

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