A detachable and easy-to-clean clean room air conditioning circulation pipeline and its disassembly and assembly method

Abstract

The present invention relates to the technical field of clean rooms, specifically to a detachable and easy-to-clean clean room air conditioning circulation pipeline and a disassembly and assembly method thereof, comprising an air conditioning circulation pipeline and a pipeline quick connector, wherein one end of the pipeline quick connector is provided with a pipeline fixing clamping groove, one side of the pipeline fixing clamping groove is provided with a pipeline movable fixing part, a positioning cylinder is provided inside the pipeline quick connector, and both the pipeline fixing clamping groove and the pipeline movable clamping groove are provided with airbag sealing mechanisms. The pipeline quick connector on the air conditioning circulation pipeline of the present invention can first recycle the coolant inside the air conditioning circulation pipeline to improve the utilization rate of resources, remove the pipeline movable fixing part from the pipeline quick connector, and then separate the positioning cylinder from the air conditioning circulation pipeline, and then directly remove the air conditioning circulation pipeline horizontally from the pipeline quick connector, without the need to frequently use a wrench, and the air conditioning circulation pipeline will not be deformed, which greatly improves the service life of the air conditioning circulation pipeline and the efficiency of disassembly and assembly.

Description

Technical Field

[0001] The invention relates to an air conditioning circulation pipeline and a disassembly and assembly method thereof, in particular to a detachable and easy-to-clean clean room air conditioning circulation pipeline and a disassembly and assembly method thereof, belonging to the technical field of clean rooms. Background Art

[0002] A clean room refers to an environment with a low pollution level. The pollution sources here include dust, airborne microorganisms, suspended particles and chemical volatile gases. The existence of a clean room is to remove pollutants such as dust particles in the air within the space, so as to obtain a relatively clean environment. However, during the long-term use of the pipeline, more impurities will accumulate inside the pipeline, so the pipeline needs to be cleaned to prevent blockage;

[0003] During the disassembly process of traditional air-conditioning pipes, a certain amount of coolant will remain in the pipes, which cannot be recycled. Therefore, a certain amount of waste will be caused during the disassembly process. Direct discharge into the air will also cause certain environmental pollution. In addition, during the disassembly process of the pipes, a wrench needs to be used to remove the nuts from the air conditioner one by one, which wastes a lot of time and causes varying degrees of wear on the joints of the pipes. In the case of severe wear, the pipes can only be cut, and in severe cases they will be directly discarded, thus greatly reducing the service life of the pipes and causing unnecessary economic losses.

[0004] Therefore, it is urgent to improve the clean room air conditioning circulation pipeline to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a clean room air-conditioning circulation pipe which is easy to disassemble and clean and a disassembly and assembly method thereof. The pipe quick joint on the air-conditioning circulation pipe can first recycle the coolant inside the air-conditioning circulation pipe, thereby reducing environmental pollution and improving resource utilization. After the pipe movable fixing part is removed from the air-conditioning circulation pipe and the positioning cylinder is separated from the pipe quick joint, the air-conditioning circulation pipe can be directly removed horizontally from the pipe quick joint without the need to frequently use a wrench, and the air-conditioning circulation pipe will not be deformed, thereby greatly improving the service life of the air-conditioning circulation pipe and the efficiency of disassembly and assembly.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] A detachable and easy-to-clean clean room air conditioning circulation pipeline, comprising an air conditioning circulation pipeline and pipeline quick connectors connected at both ends of the air conditioning circulation pipeline, the other end of the pipeline quick connector is connected to an air conditioner, one pipeline quick connector is connected to a joint electromagnetic air leakage valve, the other pipeline quick connector is connected to a refrigerant recovery mechanism, the joint electromagnetic air leakage valve and the refrigerant recovery mechanism are both connected to a central processing unit (CPU) through a wire, when the pipeline needs to be disassembled, the coolant inside the air conditioning circulation pipeline can be firstly recovered through the pipeline quick connector on the air conditioning circulation pipeline, and stored inside the refrigerant recovery mechanism, so that no loss of the coolant is caused, and while reducing environmental pollution, the utilization rate of resources is improved;

[0008] Among them, the pipe quick connectors on the air conditioning circulation pipe are installed on the outdoor unit and the indoor unit of the air conditioner respectively, that is to say, the pipe quick connector is pre-fixed on the air conditioner, and the air conditioning circulation pipe can be disassembled and installed relatively quickly, specifically:

[0009] The air conditioning circulation pipe is installed on the pipe quick joint. A pipe fixing clamping groove is provided at one end of the pipe quick joint close to the air conditioning circulation pipe. The pipe fixing clamping groove is provided with symmetrically distributed pipe fixing positioning plates. One side of the pipe fixing clamping groove is provided with a pipe movable fixing piece slidably connected to the pipe fixing positioning plate. The two ends of the air conditioning circulation pipe can be directly and horizontally placed into the interior of the pipe fixing clamping groove without bending the air conditioning circulation pipe, thereby avoiding deformation of the air conditioning circulation pipe and prolonging the service life of the air conditioning circulation pipe. Then, the pipe movable positioning plate on the pipe movable fixing piece is aligned with the pipe fixed positioning plate, and the positioning slider on the pipe movable positioning plate is slid into the interior of the positioning slide groove to achieve the function of fixing the positioning cylinder guide slider;

[0010] The pipeline quick connector is provided with a positioning cylinder for internal sliding, and a symmetrically distributed limiting guide block is fixedly provided inside the pipeline quick connector. A positioning cylinder guide slider is fixedly provided on the outer side of the positioning cylinder. The positioning cylinder guide slider is slidingly provided inside the limiting guide block. The positioning cylinder slides horizontally inside the pipeline quick connector. The limiting guide block inside the pipeline quick connector corresponds to the positioning cylinder guide slider on the positioning cylinder, so that a certain guiding effect can be played on the positioning cylinder to prevent the positioning cylinder from tilting and improve the stability of the positioning cylinder operation. A driving mechanism is rotatably provided on the outer side of the pipeline quick connector. During the horizontal movement of the positioning cylinder, the positioning cylinder is horizontally moved by the driving mechanism. The driving mechanism includes a manual driving wheel and a driving gear connected by a rotor transmission shaft. The manual driving The driving wheel is arranged on the outside of the pipeline quick connector, and the driving gear is arranged on the inside of the pipeline quick connector. By rotating the manual driving wheel on the driving mechanism, the driving gear is rotated synchronously at the same time. A positioning cylinder driving bin corresponding to the driving mechanism is arranged on the outer side of the positioning cylinder, and a positioning cylinder driving strip is fixedly arranged inside the positioning cylinder driving bin. The driving gear is meshed and connected with the positioning cylinder driving bin. When the driving gear rotates, the positioning cylinder driving strip meshed with the driving gear moves. In the process of rotating the manual driving wheel counterclockwise, the positioning cylinder driving strip is pushed outward, and the positioning cylinder is pushed outward and stuck into the port of the air-conditioning circulation pipe, so as to improve the sealing performance of the air-conditioning circulation pipe. The driving mechanism is used for horizontally moving the positioning cylinder, and the positioning cylinder is connected to the port of the air-conditioning circulation pipe. On the same horizontal axis, when the positioning cylinder moves horizontally along the direction of the air-conditioning circulation duct, one end of the positioning cylinder is engaged with the inside of the air-conditioning circulation duct, that is, the port of the positioning cylinder is directly inserted into the port of the air-conditioning circulation duct. On the one hand, the sealing between the air-conditioning circulation duct and the duct quick connector can be improved, and on the other hand, the stability of the air-conditioning circulation duct can be improved. The positioning cylinder slides horizontally inside the duct quick connector through the positioning cylinder guide slider. The positioning cylinder drive bins are symmetrically distributed on the positioning cylinder, and the driving gear is rotatably arranged inside the positioning cylinder drive bin. The positioning cylinder drive bin on the lower side is fixedly connected to the positioning cylinder drive strip through a driving strip connecting plate. The upper end of the driving gear does not contact the inner side surface of the positioning cylinder drive bin on the upper side. When the moving gear rotates, it is only meshed and connected with the positioning cylinder driving strip inside the positioning cylinder driving bin, and does not contact the upper side surface inside the positioning cylinder driving bin, thereby improving the stability of the driving gear rotation. At the same time, the rotor transmission shaft on the driving mechanism is rotatably set on the pipeline quick joint through the bearing. A double-output shaft motor is fixedly arranged between the manual driving wheel and the driving gear. The rotor transmission shaft on the driving mechanism is rotatably set inside the double-output shaft motor, which is equivalent to the rotor of the motor. Therefore, the double-output shaft motor can drive the rotor transmission shaft to rotate, and then can drive the manual driving wheel and the driving gear to rotate synchronously. No manual operation is required by workers, which improves the convenience of use. The double-output shaft motor is fixedly arranged on the inner side of the pipeline quick joint. The double-output shaft motor is used to rotate the rotor transmission shaft.The double-shaft motor establishes a communication connection with the central processing unit through a wire, and the double-shaft motor establishes a communication connection with the central processing unit through a wire, which has a high degree of automation and improves the efficiency of installation and disassembly;

[0011] A positioning cylinder plug is fixedly provided at one end of the positioning cylinder, and the inner diameter of the positioning cylinder plug is smaller than the inner diameter of the air-conditioning circulation pipe. A positioning cylinder plug is fixedly provided at one end of the positioning cylinder. During the movement of the positioning cylinder, the positioning cylinder plug is directly inserted into the interior of the air-conditioning circulation pipe to seal and fix the air-conditioning circulation pipe. When the positioning cylinder moves in a direction away from the air-conditioning circulation pipe, the port of the positioning cylinder does not contact the interface of the air-conditioning. When the positioning cylinder moves in the reverse direction, the other end of the positioning cylinder does not contact the interface of the air-conditioning, thereby preventing the positioning cylinder from causing wear to the air-conditioning interface and improving the service life of the pipe quick joint. After removing the pipe movable fixing from the pipe quick joint and separating the positioning cylinder from the air-conditioning circulation pipe, the air-conditioning circulation pipe can be directly removed horizontally from the pipe quick joint without the need to frequently use a wrench, and the air-conditioning circulation pipe will not be deformed, thereby greatly improving the service life of the air-conditioning circulation pipe and the efficiency of disassembly and assembly.

[0012] In addition, a pipeline movable clamping groove is provided inside the pipeline movable fixing part, and airbag sealing mechanisms are fixedly arranged inside the pipeline fixed clamping groove and the pipeline movable clamping groove. The airbag sealing mechanism is used to seal the air-conditioning circulation pipeline. The airbag sealing mechanism is fixedly arranged inside the pipeline fixed clamping groove and the pipeline movable clamping groove. The airbag sealing mechanism is an arc structure, and the outer side of the airbag sealing mechanism is fixedly connected to the pipeline fixed clamping groove or the pipeline movable clamping groove by gluing. Both airbag sealing mechanisms can increase the friction between the air-conditioning circulation pipeline and the stability of the air-conditioning circulation pipeline. The airbag sealing mechanism includes an airbag and a rubber gasket arranged inside the airbag. The rubber gasket plays a certain supporting role on the airbag. The airbag is connected to an air pump through an air pipe. The air pump is fixedly arranged on the outer side of the pipeline quick connector. After the pipeline movable fixing part is installed, the airbag is filled with gas by starting the air pump to expand the airbag and squeeze the air-conditioning circulation pipeline, thereby improving the sealing between the air-conditioning circulation pipeline and the pipeline quick connector. The air pump establishes a communication connection with the central processor through a wire, has a high degree of automation, and improves the convenience of use.

[0013] Preferably, the pipeline fixed positioning plate protrudes from the pipeline quick joint, and the pipeline movable fixing part is provided with a symmetrically distributed pipeline movable positioning plate, the pipeline movable positioning plate corresponds to the pipeline fixed positioning plate, and a positioning slider is fixedly provided on the pipeline movable positioning plate, and the positioning slider is horizontally slidably connected with the positioning slide groove, and the positioning slider on the pipeline movable positioning plate can directly slide into the positioning slide groove of the pipeline fixed positioning plate. The structure is simple, and the pipeline movable fixing part can be quickly removed from the pipeline quick joint by horizontally sliding the pipeline movable fixing part, and then the air-conditioning circulation pipeline can be quickly removed from the pipeline quick joint, thereby improving the convenience of disassembly and installation, and a plurality of evenly distributed electromagnet grooves are provided on the inner side surface of the pipeline fixed positioning plate, and the electromagnet groove is arranged below the pipeline fixed positioning plate, and an electromagnet assembly is fixedly arranged inside the electromagnet groove, and an electromagnet assembly is fixedly arranged on the inner side surface of the pipeline fixed positioning plate, and the electromagnet assembly is fixedly arranged on the electromagnet groove. Internally, the electromagnet assembly includes an iron core metal sheet and an iron core fixed on the iron core metal sheet, a coil is wound on the iron core, and after the pipeline movable fixture is slid onto the pipeline quick connector, the coil wound on the iron core generates magnetic force on the iron core and the iron core metal sheet after the power is turned on, and the coil establishes a communication connection with the central processor through a wire, an iron sheet groove corresponding to the electromagnet groove is provided on the inner side of the pipeline movable fixture, a positioning metal sheet is fixedly provided inside the iron sheet groove, the positioning metal sheet corresponds to the iron core metal sheet, a positioning metal sheet corresponding to the iron core metal sheet is fixedly provided on the pipeline movable positioning plate, and the positioning metal sheet is attracted and fixed when the iron core metal sheet generates magnetic force, thereby improving the stability of the pipeline movable fixture, and a movable positioning plate handle is fixedly provided on the outer side of the pipeline movable fixture, and the pipeline movable fixture is slid by the movable positioning plate handle on the pipeline movable fixture, thereby improving the convenience of use;

[0014] In addition, a fixed pipe sealing joint is fixedly provided at the port of the pipe fixed clamping groove, and a movable pipe sealing joint that is clamped and connected to the fixed pipe sealing joint is provided on one side of the pipe movable fixing part, and the movable pipe sealing joint is clamped on the fixed pipe sealing joint, so as to further improve the sealing between the pipe movable fixing part and the pipe quick joint, and a first electrical connecting piece is fixedly provided on the pipe fixed positioning plate, and a second electrical connecting piece corresponding to the first electrical connecting piece is provided on the pipe movable positioning plate, and the first electrical connecting piece and the second electrical connecting piece are electrically connected to the electromagnet assembly, wherein the electromagnet assembly generates magnetic force when the first electrical connecting piece contacts the second electrical connecting piece, and the first electrical connecting piece and the second electrical connecting piece are corresponding to the upper setting, and are equivalent to the switch of the electromagnet assembly, and when the first electrical connecting piece contacts the second electrical connecting piece, the coil on the electromagnet assembly is connected, the degree of automation is high, and the convenience of use is improved.

[0015] Further preferably, the refrigerant recovery mechanism includes a water pump and a liquid storage tank, the water pump and the liquid storage tank are connected, the water pump is connected to the inside of the pipeline quick connector through the second connecting pipe, the water pump and the liquid storage tank are connected through the first connecting pipe, the coolant inside the air-conditioning circulation pipeline can be recovered by the water pump on the refrigerant recovery mechanism, and stored in the liquid storage tank, so as to avoid the coolant being directly discharged into the air and improve the utilization rate of resources, the refrigerant recovery mechanism is fixedly provided with an exhaust valve connected to the refrigerant recovery mechanism, in the process of storing the coolant, the liquid storage tank on the liquid storage tank plays a role of balancing the air pressure to prevent the pressure inside the liquid storage tank from being too high, and the water pump and the exhaust valve are both connected to the central processing unit through wires to establish a communication connection;

[0016] At the same time, a nut groove is provided at the end of the pipe quick connector away from the air-conditioning circulation pipe, a nut limiting ring is fixedly arranged at the end of the nut groove away from the air-conditioning circulation pipe, a fastening nut is rotatably arranged between the nut groove and the nut limiting ring, and the fastening nut is connected to the air-conditioning interface by threaded engagement. While fixing the air-conditioning circulation pipe, the pipe quick connector is first fixed to the air conditioner, and the pipe quick connector is fixed to the joint of the air conditioner by the fastening nut on the nut groove. The structure is simple and the stability of the pipe quick connector is improved.

[0017] A method for disassembling and assembling a clean room air conditioning circulation pipeline that is easy to disassemble and clean, comprising the following steps:

[0018] Step 1: Coolant extraction: first stop the air conditioner, close the valve, start the refrigerant recovery mechanism and the electromagnetic air release valve on the pipeline quick connector through the central processor, and draw the coolant inside the air conditioner circulation pipeline into the liquid storage tank on the refrigerant recovery mechanism, and start the exhaust valve on the liquid storage tank as needed to store the coolant inside the liquid storage tank;

[0019] Step 2: Unseal and remove the plate, start the air pump through the central processor to extract the air inside the airbag, then cut off the power supply of the wire on the electromagnet assembly through the central processor, and slide the pipeline movable fixture horizontally from the pipeline quick connector through the iron sheet groove on the pipeline movable fixture;

[0020] Step 3: Release the positioning cylinder, start the double-shaft motor on the drive mechanism and rotate the manual drive wheel clockwise to remove the positioning cylinder plug on the positioning cylinder from the inside of the air conditioning circulation pipe;

[0021] Step 4: Take out the circulation pipe, and remove the two ends of the air conditioning circulation pipe horizontally from the pipe fixing clamping grooves on the pipe quick connector.

[0022] The present invention has at least the following beneficial effects:

[0023] 1. The quick-connect pipe joints on the air-conditioning circulation pipes can first recycle the coolant inside the air-conditioning circulation pipes to improve resource utilization. After removing the movable pipe fixings from the quick-connect pipe joints and separating the positioning cylinder from the air-conditioning circulation pipes, the air-conditioning circulation pipes can be directly removed horizontally from the quick-connect pipe joints. There is no need to use wrenches frequently, and the air-conditioning circulation pipes will not be deformed, which greatly improves the service life of the air-conditioning circulation pipes and the efficiency of disassembly and assembly.

[0024] 2. The driving mechanism is used to horizontally move the positioning cylinder. When the positioning cylinder moves horizontally along the direction of the air-conditioning circulation pipe, one end of the positioning cylinder is engaged and connected with the inside of the air-conditioning circulation pipe, that is, the port of the positioning cylinder is directly inserted into the port of the air-conditioning circulation pipe. On the one hand, it can improve the sealing between the air-conditioning circulation pipe and the pipe quick joint, and on the other hand, it can improve the stability of the air-conditioning circulation pipe.

[0025] 3. The air bag is connected to an air pump through an air pipe. The air pump is fixed on the outer side of the pipe quick connector. After the movable pipe fixture is installed, the air bag is filled with gas by starting the air pump to expand the air bag and squeeze the air-conditioning circulation pipe, thereby improving the sealing between the air-conditioning circulation pipe and the pipe quick connector. The air pump establishes a communication connection with the central processor through a wire, with a high degree of automation, which improves the convenience of use.

[0026] 4. A positioning metal sheet corresponding to the iron core metal sheet is fixedly arranged on the pipeline movable positioning plate. When the iron core metal sheet generates magnetic force, the positioning metal sheet is attracted and fixed, thereby improving the stability of the pipeline movable fixing. A movable positioning plate handle is fixedly arranged on the outer side of the pipeline movable fixing. The pipeline movable fixing is slid by the movable positioning plate handle on the pipeline movable fixing, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 This is a structural diagram of the pipeline quick connector of the present invention;

[0029] Figure 2 For the effect of the present invention Figure 1 ;

[0030] Figure 3 This is a structural diagram of a pipeline movable fixing member of the present invention;

[0031] Figure 4 It is the structural diagram of the positioning tube of the present invention;

[0032] Figure 5 A three-dimensional diagram of the pipeline quick connector of the present invention;

[0033] Figure 6 It is a structural diagram of the driving mechanism of the present invention;

[0034] Figure 7 It is a structural diagram of the refrigerant recovery mechanism of the present invention;

[0035] Figure 8 A three-dimensional diagram of a pipeline movable fixing member of the present invention;

[0036] Fig. 9 For the effect of the present invention Figure 2 ;

[0037] Fig.10 It is a structural diagram of the fastening nut of the present invention;

[0038] Fig.11 It is the electrical schematic diagram of the present invention.

[0039] In the figure, 1-air conditioning circulation pipe, 2-pipe quick connector, 201-pipe fixed card slot, 202-pipe fixed positioning plate, 203-positioning slide, 204-fixed pipe sealing joint, 205-limiting guide block, 206-nut slot, 207-nut limiting ring, 208-electromagnet slot, 3-pipe movable fixing part, 301-pipe movable card slot, 302-pipe movable positioning plate, 303-positioning slider, 304-movable pipe sealing joint, 305-iron sheet slot, 306-movable positioning plate handle, 4-positioning cylinder, 401-positioning cylinder guide slider, 402-positioning cylinder drive bin, 403-drive bar connecting plate, 404-positioning cylinder drive bar, 405-positioning cylinder Plug, 5-driving mechanism, 501-manual driving wheel, 502-driving gear, 503-rotor transmission shaft, 504-double-output shaft motor, 505-bearing, 6-refrigerant recovery mechanism, 601-water pump, 602-liquid storage tank, 603-first connecting pipe, 604-exhaust valve, 605-second connecting pipe, 7-electromagnet assembly, 701-iron core metal sheet, 702-iron core, 703-coil, 704-positioning metal sheet, 8-airbag sealing mechanism, 801-airbag, 802-rubber gasket, 803-trachea, 804-air pump, 9-connector electromagnetic drain valve, 10-fastening nut, 11-central processing unit, 12-first electrical connecting piece, 13-second electrical connecting piece. DETAILED DESCRIPTION

[0040] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0041] like Figure 1-Figure 11 As shown, the detachable and easy-to-clean clean room air conditioning circulation pipeline provided in this embodiment includes an air conditioning circulation pipeline 1 and a pipeline quick connector 2 connected at both ends of the air conditioning circulation pipeline 1, and the other end of the pipeline quick connector 2 is connected to the air conditioner. Figure 2 and Figure 6 In the embodiment, one of the pipe quick connectors 2 is connected to a joint electromagnetic air leakage valve 9, and the other pipe quick connector 2 is connected to a refrigerant recovery mechanism 6. The joint electromagnetic air leakage valve 9 and the refrigerant recovery mechanism 6 are both connected to a central processing unit 11 through a wire. In the process of disassembling the pipe, the coolant inside the air conditioning circulation pipe 1 can be first recovered through the pipe quick connector 2 on the air conditioning circulation pipe 1, and stored in the refrigerant recovery mechanism 6, so that the coolant will not be lost, and the environmental pollution is reduced while improving the utilization rate of resources;

[0042] The pipe quick connector 2 on the air conditioning circulation pipe 1 is respectively installed on the outdoor unit and the indoor unit of the air conditioning, that is, the pipe quick connector 2 is pre-fixed on the air conditioning, and the air conditioning circulation pipe 1 can be disassembled and installed relatively quickly, specifically:

[0043] The air conditioning circulation pipe 1 is installed on the pipe quick connector 2. The pipe quick connector 2 is provided with a pipe fixing clamping groove 201 at one end close to the air conditioning circulation pipe 1. The pipe fixing clamping groove 201 is provided with symmetrically distributed pipe fixing positioning plates 202. One side of the pipe fixing clamping groove 201 is provided with a pipe movable fixing member 3 which is slidably connected with the pipe fixing positioning plate 202. Figure 1 and Figure 3 In the embodiment, both ends of the air conditioning circulation pipe 1 can be directly and horizontally placed into the pipe fixed clamping groove 201, without bending the air conditioning circulation pipe 1, so as to avoid deformation of the air conditioning circulation pipe 1 and improve the service life of the air conditioning circulation pipe 1, and then align the pipe movable positioning plate 302 on the pipe movable fixing member 3 with the pipe fixed positioning plate 202, and slide the positioning slider 303 on the pipe movable positioning plate 302 into the positioning slide groove 203, so as to fix the positioning cylinder guide slider 2;

[0044] The interior of the pipeline quick connector 2 is provided with a positioning cylinder 4 for sliding movement. Figure 4In the embodiment, the interior of the pipeline quick connector 2 is fixedly provided with symmetrically distributed limiting guide blocks 205, the outer side surface of the positioning cylinder 4 is fixedly provided with a positioning cylinder guide slider 401, the positioning cylinder guide slider 401 is slidably provided inside the limiting guide block 205, the positioning cylinder 4 slides horizontally inside the pipeline quick connector 2, the limiting guide block 205 inside the pipeline quick connector 2 corresponds to the positioning cylinder guide slider 401 on the positioning cylinder 4, so it can play a certain guiding role on the positioning cylinder 4, prevent the positioning cylinder 4 from being skewed, and improve the stability of the operation of the positioning cylinder 4, the outer side surface of the pipeline quick connector 2 is rotatably provided with a driving mechanism 5, during the horizontal movement of the positioning cylinder 4, the positioning cylinder 4 is horizontally moved by the driving mechanism 5, Figure 6In the embodiment, the driving mechanism 5 includes a manual driving wheel 501 and a driving gear 502 connected by a rotor transmission shaft 503. The manual driving wheel 501 is arranged on the outside of the pipeline quick connector 2, and the driving gear 502 is arranged on the inside of the pipeline quick connector 2. By rotating the manual driving wheel 501 on the driving mechanism 5, the driving gear 502 is synchronously rotated at the same time. The outer side of the positioning cylinder 4 is provided with a positioning cylinder driving chamber 402 corresponding to the driving mechanism 5, and the interior of the positioning cylinder driving chamber 402 is fixedly provided with a positioning cylinder driving strip 404. The driving gear 502 is meshed and connected with the positioning cylinder driving chamber 402. When the driving gear 502 rotates, the positioning cylinder driving strip 404 meshed and connected with the driving gear 502 moves. When the manual driving wheel 501 is rotated counterclockwise, the driving gear 502 is rotated counterclockwise. During the process of driving the driving wheel 501, the positioning cylinder driving bar 404 is pushed outward, and the positioning cylinder 4 is pushed outward and stuck into the port of the air-conditioning circulation duct 1, thereby improving the sealing of the air-conditioning circulation duct 1. The driving mechanism 5 is used to horizontally move the positioning cylinder 4, and the positioning cylinder 4 and the port of the air-conditioning circulation duct 1 are on the same horizontal axis. Among them, when the positioning cylinder 4 moves horizontally along the direction of the air-conditioning circulation duct 1, one end of the positioning cylinder 4 is engaged with the inside of the air-conditioning circulation duct 1, that is, the port of the positioning cylinder 4 is directly inserted into the port of the air-conditioning circulation duct 1. On the one hand, the sealing between the air-conditioning circulation duct 1 and the pipeline quick connector 2 can be improved, and on the other hand, the stability of the air-conditioning circulation duct 1 can be improved. The positioning cylinder 4 slides horizontally in the duct through the positioning cylinder guide slider 401 Inside the pipeline quick connector 2, the positioning cylinder drive bin 402 is symmetrically distributed on the positioning cylinder 4, and the driving gear 502 is rotatably set inside the positioning cylinder drive bin 402, wherein the positioning cylinder drive bin 402 on the lower side is fixedly connected to the positioning cylinder drive bar 404 through the driving bar connecting plate 403, and the upper end of the driving gear 502 does not contact the inner side surface of the upper positioning cylinder drive bin 402. When the driving gear 502 on the driving mechanism 5 rotates, it is only meshed and connected with the positioning cylinder drive bar 404 inside the positioning cylinder drive bin 402, and does not contact the upper side surface inside the positioning cylinder drive bin 402, thereby improving the rotation stability of the driving gear 502. At the same time, the rotor transmission shaft 503 on the driving mechanism 5 is rotatably set on the pipeline quick connector through the bearing 505 2, a double-shaft motor 504 is fixedly arranged between the manual driving wheel 501 and the driving gear 502, and the rotor transmission shaft 503 on the driving mechanism 5 is rotatably arranged inside the double-shaft motor 504, which is equivalent to the rotor of the motor. Therefore, the double-shaft motor 504 can drive the rotor transmission shaft 503 to rotate, and then drive the manual driving wheel 501 and the driving gear 502 to rotate synchronously, without the need for manual operation by workers, thereby improving the convenience of use. The double-shaft motor 504 is fixedly arranged on the inner side of the pipeline quick connector 2, and the double-shaft motor 504 is used to rotate the rotor transmission shaft 503. The double-shaft motor 504 establishes a communication connection with the central processor 11 through a wire, and the double-shaft motor 504 establishes a communication connection with the central processor 11 through a wire.High degree of automation, improving the efficiency of installation and disassembly;

[0045] A positioning cylinder plug 405 is fixedly provided at one end of the positioning cylinder 4, and the inner diameter of the positioning cylinder plug 405 is smaller than the inner diameter of the air-conditioning circulation pipe 1. A positioning cylinder plug 405 is fixedly provided at one end of the positioning cylinder 4. During the movement of the positioning cylinder 4, the positioning cylinder plug 405 is directly inserted into the interior of the air-conditioning circulation pipe 1 to seal and fix the air-conditioning circulation pipe 1. When the positioning cylinder 4 moves in a direction away from the air-conditioning circulation pipe 1, the port of the positioning cylinder 4 does not contact the interface of the air-conditioner. When the positioning cylinder 4 moves in the reverse direction, the other end of the positioning cylinder 4 does not contact the interface of the air-conditioner, thereby preventing the positioning cylinder 4 from causing wear to the air-conditioning interface and improving the service life of the pipe quick connector 2. After the pipe movable fixing part 3 is removed from the pipe quick connector 2 and the positioning cylinder 4 is separated from the air-conditioning circulation pipe 1, the air-conditioning circulation pipe 1 can be directly removed horizontally from the pipe quick connector 2 without the need to frequently use a wrench, and the air-conditioning circulation pipe 1 will not be deformed, which greatly improves the service life of the air-conditioning circulation pipe 1 and the efficiency of disassembly and assembly;

[0046] In addition, Figure 3 In the embodiment, a pipeline movable clamping groove 301 is provided inside the pipeline movable fixing part 3, and airbag sealing mechanisms 8 are fixedly arranged inside the pipeline fixed clamping groove 201 and the pipeline movable clamping groove 301. The airbag sealing mechanisms 8 are used to seal the air-conditioning circulation pipeline 1. Airbag sealing mechanisms 8 are fixedly arranged inside the pipeline fixed clamping groove 201 and the pipeline movable clamping groove 301. The airbag sealing mechanisms 8 are arc-shaped structures, and the outer side surfaces of the airbag sealing mechanisms 8 are fixedly connected to the pipeline fixed clamping groove 201 or the pipeline movable clamping groove 301 by gluing. The two airbag sealing mechanisms 8 can both increase the friction between the air-conditioning circulation pipeline 1 and the stability of the air-conditioning circulation pipeline 1. The bag sealing mechanism 8 includes an air bag 801 and a rubber gasket 802 arranged inside the air bag 801. The rubber gasket 802 plays a certain supporting role on the air bag 801. The air bag 801 is connected to an air pump 804 through an air pipe 803. The air pump 804 is fixedly arranged on the outer side of the pipe quick connector 2. After the movable pipe fixing part 3 is installed, the air bag 801 is filled with gas by starting the air pump 804 to expand the air bag 801 and squeeze the air-conditioning circulation pipe 1, thereby improving the sealing between the air-conditioning circulation pipe 1 and the pipe quick connector 2. The air pump 804 establishes a communication connection with the central processor 11 through a wire, has a high degree of automation, and improves the convenience of use.

[0047] Further, such as Figure 1 and Figure 3As shown, the pipeline fixed positioning plate 202 protrudes from the pipeline quick connector 2, and the pipeline movable fixing part 3 is provided with symmetrically distributed pipeline movable positioning plates 302, which correspond to the pipeline fixed positioning plate 202, and the pipeline movable positioning plate 302 is fixedly provided with a positioning slider 303, and the positioning slider 303 is horizontally slidably connected with the positioning slide groove 203, and the positioning slider 303 on the pipeline movable positioning plate 302 can directly slide into the positioning slide groove 203 of the pipeline fixed positioning plate 202, which has a simple structure and can be quickly adjusted by horizontally sliding the pipeline movable fixing part 3. The pipeline movable fixing part 3 is removed from the pipeline quick connector 2, and then the air conditioning circulation pipeline 1 can be quickly removed from the pipeline quick connector 2, which improves the convenience of disassembly and installation. The inner side surface of the pipeline fixing positioning plate 202 is provided with a plurality of evenly distributed electromagnet grooves 208, and the electromagnet grooves 208 are arranged below the pipeline fixing positioning plate 202. The electromagnet assembly 7 is fixedly arranged inside the electromagnet grooves 208. The electromagnet assembly 7 is fixedly arranged on the inner side surface of the pipeline fixing positioning plate 202. The electromagnet assembly 7 is fixedly arranged inside the electromagnet grooves 208. The pipe movable fixing part 3 includes an iron core metal sheet 701 and an iron core 702 fixedly arranged on the iron core metal sheet 701, and a coil 703 is wound around the iron core 702. After the pipeline movable fixing part 3 is slid onto the pipeline quick connector 2, the coil 703 wound around the iron core 702 generates magnetic force on the iron core 702 and the iron core metal sheet 701 after the power is turned on. The coil 703 establishes a communication connection with the central processor 11 through a wire. The inner side surface of the pipeline movable fixing part 3 is provided with an iron sheet groove 305 corresponding to the electromagnet groove 208, and a positioning device is fixedly arranged inside the iron sheet groove 305. The metal sheet 704, the positioning metal sheet 704 corresponds to the iron core metal sheet 701, and the positioning metal sheet 704 corresponding to the iron core metal sheet 701 is fixedly arranged on the pipeline movable positioning plate 302, and the positioning metal sheet 704 is attracted and fixed when the iron core metal sheet 701 generates magnetic force, so that the stability of the pipeline movable fixing part 3 can be improved, and the outer side surface of the pipeline movable fixing part 3 is fixedly arranged with a movable positioning plate handle 306, and the pipeline movable fixing part 3 is slid by the movable positioning plate handle 306 on the pipeline movable fixing part 3, so as to improve the convenience of use;

[0048] In addition, a fixed pipe sealing joint 204 is fixedly provided at the end of the pipe fixed clamping groove 201, and a movable pipe sealing joint 304 is provided on one side of the pipe movable fixing part 3 to be clamped and connected with the fixed pipe sealing joint 204. The movable pipe sealing joint 304 is clamped on the fixed pipe sealing joint 204 to further improve the sealing between the pipe movable fixing part 3 and the pipe quick joint 2. A first electrical connecting piece 12 is fixedly provided on the pipe fixed positioning plate 202, and a second electrical connecting piece 12 corresponding to the first electrical connecting piece 12 is provided on the pipe movable positioning plate 302. Two electrical connecting pieces 13, the first electrical connecting piece 12 and the second electrical connecting piece 13 are electrically connected to the electromagnet assembly 7, wherein the electromagnet assembly 7 generates magnetic force when the first electrical connecting piece 12 contacts the second electrical connecting piece 13, 12 set on 202 corresponds to 302 set on 302, the first electrical connecting piece 12 and the second electrical connecting piece 13 are equivalent to the switch of the electromagnet assembly 7, when the first electrical connecting piece 12 contacts the second electrical connecting piece 13, the coil 703 on the electromagnet assembly 7 is connected, the degree of automation is high, and the convenience of use is improved.

[0049] Further, if Figure 2 , Figure 7 as well as Fig.10 As shown, the refrigerant recovery mechanism 6 includes a water pump 601 and a liquid storage tank 602, the water pump 601 and the liquid storage tank 602 are connected, the water pump 601 is connected to the inside of the pipeline quick connector 2 through the second connecting pipe 605, and the water pump 601 and the liquid storage tank 602 are connected through the first connecting pipe 603. The water pump 601 on the refrigerant recovery mechanism 6 can recover the coolant inside the air-conditioning circulation pipeline 1 and store it in the liquid storage tank 602 to avoid the coolant being directly discharged into the air, thereby improving the utilization rate of resources. The refrigerant recovery mechanism 6 is fixedly provided with an exhaust valve 604 connected to the refrigerant recovery mechanism 6. In the process of storing the coolant, the liquid storage tank 602 on the liquid storage tank 602 plays a role in balancing the air pressure to prevent the pressure inside the liquid storage tank 602 from being too high. The water pump 601 and the exhaust valve 604 are both connected to the central processor 11 through wires.

[0050] At the same time, a nut groove 206 is opened at the end of the pipe quick connector 2 away from the air-conditioning circulation pipe 1, and a nut limiting ring 207 is fixedly arranged at the end of the nut groove 206 away from the air-conditioning circulation pipe 1. A fastening nut 10 is rotatably arranged between the nut groove 206 and the nut limiting ring 207. The fastening nut 10 is connected to the air-conditioning interface through a threaded connection. While fixing the air-conditioning circulation pipe 1, the pipe quick connector 2 is first fixed to the air conditioner, and the pipe quick connector 2 is fixed to the joint of the air conditioner through the fastening nut 10 on the nut groove 206. The structure is simple and the stability of the pipe quick connector 2 is improved.

[0051] like Figure 1-Figure 11As shown, the method for disassembling and assembling the clean room air conditioning circulation pipe that is easy to disassemble and clean provided in this embodiment includes the following steps:

[0052] Step 1: Coolant extraction, first stop the air conditioner, close the valve, start the refrigerant recovery mechanism 6 and the joint electromagnetic air release valve 9 on the pipeline quick connector 2 through the central processor 11, and draw the coolant inside the air conditioning circulation pipeline 1 into the liquid storage tank 602 on the refrigerant recovery mechanism 6, and start the exhaust valve 604 on the liquid storage tank 602 as needed to store the coolant inside the liquid storage tank 602;

[0053] Step 2: Unpack and remove the plate, start the air pump 804 through the central processor 11 to extract the air inside the airbag 801, then cut off the power supply of the coil 703 on the electromagnet assembly 7 through the central processor 11, and slide the pipeline movable positioning plate 302 horizontally from the pipeline quick connector 2 through the iron sheet groove 305 on the pipeline movable positioning plate 302;

[0054] Step 3: Release the positioning cylinder by starting the double-shaft motor 504 on the driving mechanism 5 to rotate the manual driving wheel 501 clockwise, so that the positioning cylinder plug 405 on the positioning cylinder 4 is removed from the inside of the air conditioning circulation pipe 1;

[0055] Step 4: Take out the circulation pipe. Take out the two ends of the air-conditioning circulation pipe 1 from the pipe fixing clamping grooves 201 on the pipe quick connector 2 in sequence.

[0056] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0057] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0058] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art shall not depart from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A detachable and easy-to-clean clean room air conditioning circulation pipeline, comprising an air conditioning circulation pipeline (1) and pipeline quick connectors (2) connected to both ends of the air conditioning circulation pipeline (1), characterized in that: The other end of the pipeline quick connector (2) is connected to an air conditioner, one of the pipeline quick connectors (2) is connected to a connector electromagnetic air release valve (9), and the other pipeline quick connector (2) is connected to a refrigerant recovery mechanism (6), and the connector electromagnetic air release valve (9) and the refrigerant recovery mechanism (6) are both connected to a central processing unit (11) via a wire; The pipe quick connector (2) is provided with a pipe fixing clamping groove (201) at one end close to the air conditioning circulation pipe (1), and symmetrically distributed pipe fixing positioning plates (202) are arranged on the pipe fixing clamping groove (201). A pipe movable fixing member (3) slidably connected to the pipe fixing positioning plate (202) is arranged on one side of the pipe fixing clamping groove (201). A positioning cylinder (4) is slidably arranged inside the pipe quick connector (2), and symmetrically distributed limiting guide blocks (205) are fixedly arranged inside the pipe quick connector (2). A positioning cylinder guide slider (401) is fixedly arranged on the outer side surface of the positioning cylinder (4), and the positioning cylinder guide slider (401) is slidably arranged inside the limiting guide block (205). A driving mechanism (5) is rotatably arranged on the outer side surface of the pipe quick connector (2), and the driving mechanism (5) comprises a rotor transmission shaft (503) which is connected to the pipe quick connector (2). a manual drive wheel (501) and a drive gear (502) connected thereto, the manual drive wheel (501) being arranged outside the pipe quick connector (2), the drive gear (502) being arranged inside the pipe quick connector (2), the outer side surface of the positioning cylinder (4) being provided with a positioning cylinder drive chamber (402) corresponding to the drive mechanism (5), the interior of the positioning cylinder drive chamber (402) being fixedly provided with a positioning cylinder drive bar (404), the drive gear (502) being meshingly connected with the positioning cylinder drive chamber (402), the drive mechanism (5) being used for horizontally moving the positioning cylinder (4), the positioning cylinder (4) and the port of the air-conditioning circulation pipe (1) being located on the same horizontal axis, wherein when the positioning cylinder (4) is horizontally moved along the direction of the air-conditioning circulation pipe (1), one end of the positioning cylinder (4) is snap-fittedly connected with the interior of the air-conditioning circulation pipe (1); The pipeline movable fixing part (3) is provided with a pipeline movable clamping groove (301) inside, and the pipeline fixed clamping groove (201) and the pipeline movable clamping groove (301) are both fixedly provided with airbag sealing mechanisms (8), and the airbag sealing mechanism (8) is used to seal the air conditioning circulation pipeline (1), the pipeline fixed positioning plate (202) protrudes from the pipeline quick connector (2), and the pipeline movable fixing part (3) is provided with symmetrically distributed pipeline movable positioning plates (302), and the pipeline movable positioning plates (302) correspond to the pipeline fixed positioning plates (202), and a positioning slider (303) is fixedly provided on the pipeline movable positioning plate (302), The positioning slide block (303) is horizontally slidably connected to the positioning slide groove (203); the inner side surface of the pipeline fixing positioning plate (202) is provided with a plurality of evenly distributed electromagnet grooves (208); the electromagnet grooves (208) are arranged below the pipeline fixing positioning plate (202); an electromagnet assembly (7) is fixedly arranged inside the electromagnet groove (208); the electromagnet assembly (7) comprises an iron core metal sheet (701) and an iron core (702) fixedly arranged on the iron core metal sheet (701); a coil (703) is wound around the iron core (702); and the coil (703) establishes a communication connection with the central processing unit (11) via a wire; An iron sheet groove (305) corresponding to the electromagnet groove (208) is formed on the inner side surface of the pipeline movable positioning plate (302), and a positioning metal sheet (704) is fixedly arranged inside the iron sheet groove (305), and the positioning metal sheet (704) corresponds to the iron core metal sheet (701); A movable positioning plate handle (306) is fixedly provided on the outer side surface of the pipeline movable fixing member (3); the positioning cylinder (4) slides horizontally inside the pipeline quick connector (2) via the positioning cylinder guide slider (401); the positioning cylinder drive bin (402) is symmetrically distributed on the positioning cylinder (4), and the drive gear (502) is rotatably arranged inside the positioning cylinder drive bin (402); the positioning cylinder drive bin (402) on the lower side is fixedly connected to the positioning cylinder drive bar (404) via a drive bar connecting plate (403); and the upper end of the drive gear (502) does not contact the inner side surface of the positioning cylinder drive bin (402) on the upper side; A positioning cylinder plug (405) is fixedly provided at one end of the positioning cylinder (4), the inner diameter of the positioning cylinder plug (405) being smaller than the inner diameter of the air conditioning circulation pipe (1), wherein when the positioning cylinder (4) moves in a direction away from the air conditioning circulation pipe (1), the port of the positioning cylinder (4) does not contact the interface of the air conditioner, the rotor transmission shaft (503) on the driving mechanism (5) is rotatably arranged on the pipe quick connector (2) via a bearing (505), a double-outlet shaft motor (504) is fixedly arranged between the manual driving wheel (501) and the driving gear (502), the double-outlet shaft motor (504) is fixedly arranged on the inner side surface of the pipe quick connector (2), and the double-outlet shaft motor (504) is used to rotate the rotor transmission shaft (503); The dual-shaft motor (504) establishes a communication connection with the central processor (11) via a wire, the refrigerant recovery mechanism (6) comprises a water pump (601) and a liquid storage tank (602), the water pump (601) and the liquid storage tank (602) are connected, the water pump (601) is connected to the inside of the pipeline quick connector (2) via a second connecting pipe (605), and the water pump (601) and the liquid storage tank (602) are connected via a first connecting pipe (603); The refrigerant recovery mechanism (6) is fixedly provided with an exhaust valve (604) connected to the refrigerant recovery mechanism (6); the water pump (601) and the exhaust valve (604) are both connected to the central processor (11) through a wire; the airbag sealing mechanism (8) is an arc-shaped structure, and the outer side surface of the airbag sealing mechanism (8) is fixedly connected to the pipeline fixed clamping groove (201) or the pipeline movable clamping groove (301) by gluing; The airbag sealing mechanism (8) comprises an airbag (801) and a rubber gasket (802) arranged inside the airbag (801); the airbag (801) is connected to an air pump (804) via an air pipe (803); the air pump (804) is fixedly arranged on the outer side of the pipeline quick connector (2); the air pump (804) establishes a communication connection with the central processor (11) via a wire. The method for disassembling and assembling the clean room air conditioning circulation pipeline that is easy to disassemble and clean comprises the following steps: Step 1: extracting the coolant. First, the air conditioner is shut down and the valve is closed. Then, the refrigerant recovery mechanism (6) and the joint electromagnetic air release valve (9) on the pipeline quick connector (2) are activated through the central processor (11). The coolant inside the air conditioner circulation pipeline (1) is extracted into the liquid storage tank (602) on the refrigerant recovery mechanism (6). The exhaust valve (604) on the liquid storage tank (602) is activated as needed to store the coolant inside the liquid storage tank (602). Step 2: Unpack and remove the plate, start the air pump (804) through the central processor (11) to extract the air inside the air bag (801), then cut off the power supply of the coil (703) on the electromagnet assembly (7) through the central processor (11), and slide the pipeline movable fixing part (3) horizontally off the pipeline quick connector (2) through the iron sheet groove (305) on the pipeline movable fixing part (3); Step 3: Release the positioning cylinder by starting the double-shaft motor (504) on the driving mechanism (5) to rotate the manual driving wheel (501) clockwise, so that the positioning cylinder plug (405) on the positioning cylinder (4) is removed from the inside of the air conditioning circulation pipe (1); Step 4: Take out the circulation pipe. Take out the two ends of the air conditioning circulation pipe (1) from the pipe fixing clamping grooves (201) on the pipe quick connector (2) in sequence and transversely.

2. The easily dismantled and easily cleaned clean room air conditioning circulation duct according to claim 1, characterized in that: A nut groove (206) is provided at one end of the pipe quick connector (2) away from the air conditioning circulation pipe (1); a nut limiting ring (207) is fixedly provided at one end of the nut groove (206) away from the air conditioning circulation pipe (1); a fastening nut (10) is rotatably provided between the nut groove (206) and the nut limiting ring (207); and the fastening nut (10) is screwed together with the air conditioning interface via a thread.

3. The easily dismantled and easily cleaned clean room air conditioning circulation duct according to claim 2, characterized in that: A fixed pipe sealing joint (204) is fixedly arranged at the end of the pipe fixed clamping groove (201); a movable pipe sealing joint (304) is provided on one side of the pipe movable fixing member (3) and is engaged with the fixed pipe sealing joint (204); a first electrical connection piece (12) is fixedly arranged on the pipe fixed positioning plate (202); a second electrical connection piece (13) corresponding to the first electrical connection piece (12) is arranged on the pipe movable positioning plate (302); the first electrical connection piece (12) and the second electrical connection piece (13) are electrically connected to the electromagnet assembly (7); and when the first electrical connection piece (12) and the second electrical connection piece (13) are in contact, the electromagnet assembly (7) generates magnetic force.

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