Check water valve inspection device and inspection system

Abstract

The invention discloses a check water valve inspection device and system, the check water valve inspection device comprises a support, a detection assembly and a moving assembly, the detection assembly comprises a shell, a liquid discharge part and a detection part, a sealing cavity is formed in the shell, a first opening communicated with the sealing cavity is formed in the shell, the shell is in sliding connection with the support, and the liquid discharge part is arranged in the first opening; the liquid inlet end of the liquid discharging part communicates with the sealing cavity and is used for emptying liquid in the sealing cavity, the detection part is connected to the interior of the shell and is used for detecting the internal air pressure of the sealing cavity, and the moving assembly is connected to the support and is used for driving the support and the detection assembly to move. According to the invention, the problem that whether the check water valve is damaged or not still needs to be judged by manual underwater operation because the underwater check water valve repairing machine can only realize maintenance and cleaning of the check water valve and cannot accurately judge whether the check valve is damaged or not can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater operation robots, and particularly relates to a check valve inspection device and an inspection system for a check valve with backflow prevention. Background Art

[0002] To reduce manual underwater operations and achieve automated cleaning and maintenance of the check valve with backflow prevention in the water channel, relevant automated underwater operation robots have emerged.

[0003] For example, the Chinese invention patent with the publication number: CN116902183A, titled "An underwater check valve repair machine", includes a submersible. A check valve detection device and a check valve maintenance device are provided on the submersible. The check valve maintenance device includes a flip mechanism for opening the check valve cover, a cleaning mechanism for cleaning the check valve cavity, a ball replacement mechanism for replacing the check valve ball, and a cover grasping mechanism for resetting the check valve cover. By arranging the check valve detection device on the submersible, the position of the check valve can be detected and determined. The opening of the check valve cover can be achieved through the flip mechanism installed on the submersible, the check valve cavity can be cleaned and maintained through the cleaning mechanism, the check valve ball can be replaced through the ball replacement mechanism, and the check valve cover can be reset through the cover grasping mechanism. The above-mentioned mechanisms are all brought to the working position by the submersible, thus solving the problems of high maintenance and replacement costs and poor safety of underwater check valves.

[0004] However, the underwater check valve repair machine can only achieve the maintenance and cleaning of the check valve with backflow prevention, and cannot accurately judge whether the check valve is damaged, resulting in the still need for manual underwater operations to judge whether the check valve with backflow prevention is damaged. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies, and propose a check valve inspection device and an inspection system for a check valve with backflow prevention, so as to solve the technical problem that in the prior art, because the underwater check valve repair machine can only achieve the maintenance and cleaning of the check valve with backflow prevention and cannot accurately judge whether the check valve is damaged, it still requires manual underwater operations to judge whether the check valve with backflow prevention is damaged.

[0006] To achieve the above technical purpose, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a check valve inspection device for a check valve with backflow prevention, including: A support; A detection assembly, including a housing, a liquid discharge member, and a detection member. A sealed cavity is formed inside the housing, and a first opening communicating with the sealed cavity is provided. The housing is slidably connected to the support. The liquid inlet end of the liquid discharge member is communicated with the sealed cavity, and is used for emptying the liquid in the sealed cavity. The detection member is connected inside the housing and is used for detecting the internal air pressure of the sealed cavity; and A moving component, connected to the support, is used to drive the support and the detection component to move.

[0007] In some embodiments, the detection component further includes a first seal and a first linear drive. The first seal is connected to the open end of the first opening. The first linear drive is connected to the housing and the support, and is used to drive the housing to slide relative to the support, and to make the first seal tightly abut against the bottom of the water channel.

[0008] In some embodiments, the detection component further includes a partition and a second seal. The partition is annular and is connected to the inner wall of the housing. The partition divides the sealed cavity into an independent connection cavity and a detection cavity. The second seal is connected to the partition and can tightly abut against the bottom of the water channel. The detection piece is built in the detection cavity.

[0009] In some embodiments, the liquid discharging component includes a first pump body. The first pump body is connected to the support, and the liquid inlet end of the first pump body is communicated with the inside of the connection cavity.

[0010] In some embodiments, the liquid discharging component further includes a second pump body. The second pump body is connected to the support, and the liquid inlet end of the second pump body is communicated with the inside of the connection cavity.

[0011] In some embodiments, the detection piece includes a pressure sensor. The pressure sensor is connected to the inner wall of the detection cavity and is used to detect the pressure in the detection cavity.

[0012] In some embodiments, an installation groove for installing a check valve for preventing water from flowing back is formed at the bottom of the water channel. The check valve inspection device further includes a replacement component. The replacement component includes a connecting frame, a breaking head, a clamping piece and a second linear drive. The connecting frame is connected to the support. The breaking head is arranged opposite to the installation groove and is slidably connected to the connecting frame. The breaking head can move closer to or away from the bottom of the water channel, and can insert into the check valve or take out the check valve in the installation groove. The clamping piece is connected to the connecting frame and is provided with a clamping channel for clamping the check valve. The second linear drive has a fixed end and a telescopic end. The fixed end of the second linear drive is connected to the connecting frame, and the telescopic end is slidably built in the clamping channel and is used to push the check valve out of the clamping channel and slide into the installation groove.

[0013] In some embodiments, the replacement component further includes a slide rail and two sliding tables. The slide rail is connected to the connecting frame. The two sliding tables are arranged at intervals and are both slidably connected to the slide rail. The two sliding tables are respectively connected to the breaking head and the clamping piece.

[0014] In some embodiments, the replacement component further includes a driving motor and a third linear driving member. The output shaft of the driving motor is connected to the crushing head, and the fixed end of the third linear driving member is connected to one of the sliding tables, and the telescopic end is connected to the fixed end of the driving motor.

[0015] In a second aspect, the present invention further provides a check valve inspection system for preventing backflow of water, including an image acquisition module, a control module, and the check valve inspection device for preventing backflow of water as described above. The image acquisition module includes a first camera and a second camera. Both the first camera and the second camera are connected to the support for assisting the movement of the moving component. The control module is configured to be in communication connection with the moving component, the first camera, the second camera, the first linear driving member, the second linear driving member, the third linear driving member, the first pump body, the second pump body, the driving motor, and the sliding table.

[0016] Compared with the prior art, the beneficial effects of the check valve inspection device for preventing backflow of water and the inspection system provided by the present invention include: The support is connected to the moving component, enabling free movement. The housing is provided with a housing, a liquid discharging member, and a detecting member. A sealed cavity is formed inside the housing, and a first opening communicating with the sealed cavity is provided. The housing can be in sealed contact with the bottom of the water channel and cover the check valve for preventing backflow of water. The liquid discharging member is used to empty the liquid in the sealed cavity, and the detecting member is built into the housing for detecting the air pressure in the sealed cavity. Compared with the prior art, this device can automatically move above the check valve for preventing backflow of water through the moving component, and use the housing to be in sealed contact with the bottom of the water channel to enable the liquid discharging member to empty the liquid in the sealed cavity, and then use the detecting member to detect the air pressure in the sealed cavity, and judge whether the check valve for preventing backflow of water is normal through the change of the air pressure in the sealed cavity. It can replace manual underwater operations, and has a high judgment accuracy. It can solve the technical problem in the prior art that because the underwater check valve repair machine can only perform maintenance and cleaning on the check valve for preventing backflow of water and cannot accurately judge whether the check valve is damaged, resulting in the still need for manual underwater operations to judge whether the check valve for preventing backflow of water is damaged. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of a check valve inspection device for preventing backflow of water provided by an embodiment of the present invention; Figure 2 is a three-dimensional view of the connection of the support, the detection component, and the moving component provided by an embodiment of the present invention; Figure 3 is another three-dimensional view of the connection of the support, the detection component, and the moving component provided by an embodiment of the present invention; Figure 4 is still another three-dimensional view of the connection of the support, the detection component, and the moving component provided by an embodiment of the present invention; Figure 5It is a three-dimensional diagram showing the connection of a support, a detection component, and an image acquisition module of a mobile component provided by an embodiment of the present invention; Figure 6 It is a three-dimensional diagram of a replacement component provided by an embodiment of the present invention; Figure 7 It is a three-dimensional diagram showing the connection of a sliding table, a second linear drive member, a crushing sleeve, and a crushing head provided by an embodiment of the present invention; Figure 8 It is a three-dimensional diagram of a drive motor provided by an embodiment of the present invention; Figure 9 It is a three-dimensional diagram showing the connection of a sliding table, a third linear drive member, and a clamping member provided by an embodiment of the present invention; Figure 10 It is a three-dimensional diagram of a third linear drive member provided by an embodiment of the present invention; Figure 11 It is a schematic electrical connection diagram of an anti-backflow check valve inspection system provided by an embodiment of the present invention.

[0018] Explanation of reference numerals: Support 100; Detection component 200; Housing 210; Drainage member 220; First pump body 221; Second pump body 222; First Venturi tube 224; Water and gas pipe 225; Detection member 230; Pressure sensor 231; Data monitoring box 232; First seal 240; First linear drive member 250; Partition 260; Second seal 270; Mobile component 300; Crawler mobile platform 310; Transmission member 311; Drive part 312; Replacement component 400; Connecting frame 410; Crushing head 420; Clamping member 430; Clamping cylinder 431; Baffle 432; Second linear drive member 440; Slide rail 450; Sliding table 460; Drive motor 470; Third linear drive member 480; Crushing sleeve 490; Image acquisition module 500; First camera 510; Second camera 520; Third camera 530; Control module 600. Detailed implementation manners

[0019] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In order to solve the technical problem that since the underwater check valve repair machine can only perform maintenance and cleaning on the check valve and cannot accurately determine whether the check valve is damaged, resulting in the need for manual underwater operation to determine whether the check valve is damaged, the present invention provides a check valve inspection device and an inspection system, which can automatically move above the check valve through the moving component 300, and use the housing 210 to be in sealed contact with the bottom of the water channel, so that the liquid discharging component 220 empties the liquid in the sealed cavity, and then use the detection component 230 to detect the air pressure in the sealed cavity, and determine whether the check valve is normal through the change of the air pressure in the sealed cavity, which can replace manual underwater operation and has a high judgment accuracy rate.

[0021] Please refer to Figures 1 to 10 , Figure 1 FIG. is a schematic structural diagram of a check valve inspection device and an inspection system in an embodiment of the present invention. The check valve inspection device includes: a support 100, a detection component 200 and a moving component 300. The detection component 200 includes a housing 210, a liquid discharging component 220 and a detection component 230. A sealed cavity is formed inside the housing 210, and a first opening communicating with the sealed cavity is provided. The housing 210 is slidably connected to the support 100. The liquid inlet end of the liquid discharging component 220 is connected to the inside of the sealed cavity for emptying the liquid in the sealed cavity. The detection component 230 is connected to the inside of the housing 210 for detecting the internal air pressure of the sealed cavity. The moving component 300 is connected to the support 100 for driving the support 100 and the detection component 200 to move.

[0022] In this device, it automatically moves above the check valve through the moving component 300, and uses the housing 210 to be in sealed contact with the bottom of the water channel, so that the liquid discharging component 220 empties the liquid in the sealed cavity, and then uses the detection component 230 to detect the air pressure in the sealed cavity, and determines whether the check valve is normal through the change of the air pressure in the sealed cavity. It can replace manual underwater operation and has a high judgment accuracy rate, and can solve the technical problem in the prior art that since the underwater check valve repair machine can only perform maintenance and cleaning on the check valve and cannot accurately determine whether the check valve is damaged, resulting in the need for manual underwater operation to determine whether the check valve is damaged.

[0023] Furthermore, in this device, the housing 210 is a common and easily purchasable sealed pressure-resistant container in the market, which is a conventional setting well-known to those skilled in the art, and will not be elaborated here too much.

[0024] In this embodiment, as Figures 1 to 5As shown in the figure, the moving component 300 in the present device includes two crawler moving platforms 310, which are respectively arranged on both sides of the support 100. The moving platform includes a transmission member 311 and a driving part 312. The driving part 312 is installed at the tail of the support 100 to provide power for the inspection and replacement device applicable to the check valve at the bottom of the water channel. The transmission member 311 is installed on both sides of the support 100. The transmission member 311 includes an end crawler, a power transmission wheel, and a steering transmission wheel. The driving part 312 includes a power motor and a wired cable. Here, the crawler moving platform 310 belongs to the conventional settings well-known to those skilled in the art, and will not be elaborated here.

[0025] Furthermore, the crawler moving platform 310 can be communicatively connected to the control module 600, and the control module 600 is used to control the free movement of the crawler moving platform 310, which will not be elaborated here.

[0026] In this embodiment, as Figures 2 to 5 shown, the detection component 200 further includes a first seal 240, a first linear drive 250, a partition 260 and a second seal 270. The liquid discharge member 220 includes a first pump body 221 and a second pump body 222. The detection member 230 includes a pressure sensor 231.

[0027] Among them, the first seal 240 is connected to the opening end of the first opening. The first linear drive 250 is connected to the housing 210 and the support 100, and is used to drive the housing 210 to slide relative to the support 100, so that the first seal 240 is sealingly abutted against the bottom of the water channel.

[0028] The first seal 240 is used to realize the sealed connection between the opening end of the first opening of the housing 210 and the bottom of the water channel. Driven by the first linear drive 250, the opening end of the first opening of the housing 210 can move relative to the bottom of the water channel. Here, the first linear drive 250 is a common and easily purchasable push rod motor on the market, and can also be a hydraulic cylinder, a cylinder, and a linear drive structure similar to a ball screw nut pair, which will not be elaborated here.

[0029] Furthermore, here the first seal 240 is annular and elastic. The first seal 240 is a common and purchasable device on the market, such as: a corrugated pipe or a sealing rubber ring. Here, the first seal 240 belongs to the conventional settings well-known to those skilled in the art, and will not be elaborated here.

[0030] In one of the embodiments, please refer to Figure 4 、 Figure 5, the partition 260 is annular and connected to the inner wall of the housing 210. The partition 260 divides the sealing cavity into an independent connection cavity and a detection cavity. The second seal 270 is connected to the partition 260 and can be in sealing contact with the bottom of the water channel. The detection member 230 is disposed in the detection cavity.

[0031] The partition 260 divides the sealing cavity into an independent connection cavity and a detection cavity. The connection cavity is used to achieve a sealed connection between the housing 210 and the bottom of the water channel, and the detection cavity is used to achieve communication with the check valve for backwater prevention.

[0032] Furthermore, adopting a partitioned sealing structure can effectively improve the sealing effect and enhance the accuracy of detection.

[0033] Here, the second seal 270 is annular and elastic. The second seal 270 is a common and purchased device in the market, such as a bellows or a sealing rubber ring. Here, the second seal 270 belongs to the conventional settings known to those skilled in the art and will not be elaborated further here.

[0034] In one embodiment, please refer to Figure 4 , Figure 5 , the first pump body 221 is connected to the support 100, and the liquid inlet end of the first pump body 221 is communicated with the inside of the connection cavity.

[0035] The first pump body 221 is connected to the housing 210, and the liquid inlet end of the first pump body 221 is communicated with the inside of the connection cavity, used to discharge the liquid in the connection cavity and form a negative pressure in the connection cavity, so that the housing 210 can be stably connected to the bottom of the water channel.

[0036] Furthermore, a first Venturi tube 224 is also provided between the housing 210 and the liquid inlet end of the first pump body 221. The fluid effect generated by the Venturi tube can accelerate the emptying or injection of liquid, which will not be elaborated further here.

[0037] In one embodiment, please refer to Figure 4 , Figure 5 , the second pump body 222 is connected to the support 100, and the liquid inlet end of the second pump body 222 is communicated with the inside of the connection cavity.

[0038] The second pump body 222 is connected to the housing 210, and the liquid inlet end of the second pump body 222 is communicated with the inside of the connection cavity, used to discharge the liquid in the connection cavity and form a negative pressure in the connection cavity, so that the housing 210 can be stably connected to the bottom of the water channel.

[0039] Furthermore, both the first pump body 221 and the second pump body 222 are conventional and easily purchasable pressure regulating pumps in the market, belonging to the conventional settings known to those skilled in the art and will not be elaborated further here.

[0040] In addition, in some embodiments, a water and gas pipe 225 is further provided between the housing 210 and the liquid inlet end of the second pump body 222, and the second pump body 222 and the water and gas pipe 225 are used to adjust the pressure in the detection cavity.

[0041] Furthermore, two first Venturi tubes 224 and two water and gas pipes 225 are respectively provided on the housing. The first pump body 221 and the second pump body 222 can be respectively connected to the inside of the connection cavity or the detection cavity via the first Venturi tube 224 or the water and gas pipe 225, and details are not described herein again.

[0042] In one of the embodiments, please refer to Figure 5 , the pressure sensor 231 is connected to the inner wall of the detection cavity for detecting the pressure in the detection cavity.

[0043] The pressure sensor 231 is used to accurately judge the pressure change in the detection cavity, and the second pump body 222 is used to continuously adjust the pressure in the detection cavity to achieve the purpose of monitoring whether the check valve is normal.

[0044] Specifically, the second pump body 222 can change the internal pressure in the detection cavity. First, the second pump body 222 pressurizes. If the internal pressure of the detection cavity cannot rise normally, the check valve performance damage condition is met. If the internal pressure of the detection cavity can rise normally, then the second pump body 222 decompresses. If the internal pressure of the detection cavity cannot drop normally after the second pump body 222 decompresses, the check valve performance damage condition is met. If the internal pressure of the detection cavity can drop normally after the second pump body 222 decompresses, the check valve performance damage condition is not met.

[0045] Furthermore, the detection member 230 further includes a data monitoring box 232. The data monitoring box 232 is connected to the support 100 and can be electrically connected to the pressure sensor 231 for feedback and processing of the pressure change signals collected by the pressure sensor 231. Here, the data monitoring box 232 is a common and easily purchasable device in the market and is a conventional setting well-known to those skilled in the art, and details are not described herein again.

[0046] In this embodiment, as Figure 1 , Figures 6 to 10As shown, an installation groove for installing a check and return valve is formed at the bottom of the water channel. The inspection device for the check and return valve further includes a replacement assembly 400. The replacement assembly 400 includes a connecting frame 410, a breaking head 420, a clamping member 430, and a second linear driving member 440. The connecting frame 410 is connected to the support 100. The breaking head 420 is disposed opposite to the installation groove and is slidably connected to the connecting frame 410. The breaking head 420 can move closer to or away from the bottom of the water channel, and can be inserted into the check and return valve or take out the check and return valve in the installation groove. The clamping member 430 is connected to the connecting frame 410 and is provided with a clamping channel for clamping the check and return valve. The second linear driving member 440 has a fixed end and a telescopic end. The fixed end of the second linear driving member 440 is connected to the connecting frame 410, and the telescopic end is slidably disposed inside the clamping channel for pushing the check and return valve out of the clamping channel and sliding it into the installation groove.

[0047] By using the breaking head 420, the clamping member 430, and the second linear driving member 440, the automatic replacement of the damaged check and return valve can be realized, reducing manual underwater construction and labor intensity.

[0048] Furthermore, the connecting frame 410 is hinged to the support 100 to prevent the connecting frame 410 from affecting the free movement of the support 100 and the moving assembly 300. The connecting frame 410 is disposed at the tail of the support 100 and moves together with the support 100, which will not be elaborated here.

[0049] Furthermore, when it is detected by the detection member 230 that the check and return valve is damaged and needs to be replaced, first, the moving assembly 300 drives the connecting frame 410 to move, and the breaking head 420 is disposed opposite to the check and return valve. The breaking head 420 can slide closer to the check and return valve and be inserted into the check and return valve. As the breaking head 420 slides upward, the damaged check and return valve can be pulled out of the installation groove. Then, the clamping member 430 moves to be disposed opposite to the installation groove. Driven by the telescopic end of the second linear driving member 440, a new check and return valve placed inside the clamping channel is pushed out and the new check and return valve is pushed into the installation groove.

[0050] In one embodiment, please refer to Figures 6 to 10 , the replacement assembly 400 further includes a slide rail 450, two slide tables 460, a driving motor 470, a third linear driving member 480, and a breaking sleeve 490. The clamping member 430 includes a clamping cylinder 431 and two baffles 432.

[0051] Among them, the slide rail 450 is connected to the connecting frame 410. The two slide tables 460 are spaced apart from each other and are both slidably connected to the slide rail 450. The two slide tables 460 are respectively connected to the breaking head 420 and the clamping member 430.

[0052] The breaker head 420 and the clamping member 430 are spaced apart from each other, and are respectively slidably connected to the slide rail 450 via two sliding platforms 460, so that the breaker head 420 and the clamping member 430 can be respectively arranged relative to the installation groove, thereby realizing the removal of the old check valve and the installation of the new check valve.

[0053] Further, the sliding platform 460 and the slide rail 450 are connected here, and the sliding platform 460 can move automatically relative to the slide rail 450, which belongs to conventional and easily purchasable equipment on the market and is a conventional setting well-known to those skilled in the art, so no more details will be given here.

[0054] In one embodiment, please refer to Figures 6 to 10 , the crushing sleeve 490 is connected to a sliding platform 460, the breaker head 420 is rotatably connected to the crushing sleeve 490, the output shaft of the driving motor 470 is connected to the breaker head 420, and the fixed end of the third linear driving member 480 is connected to a sliding platform 460 and the telescopic end is connected to the fixed end of the driving motor 470.

[0055] Driven by the output shaft of the driving motor 470, the breaker head 420 can rotate relative to the sliding platform 460 and the crushing sleeve 490 and drill into the old check valve. The telescopic end of the third linear driving member 480 can drive the breaker head 420 to insert into the old check valve, or slide away from the installation groove to take out the old check valve from the installation groove.

[0056] Further, the surface of the breaker head 420 is formed with threads. The breaker head 420 drilled into the old check valve forms an integral body with the old check valve, and can take out the old check valve from the installation groove under the drive of the telescopic end of the third linear driving member 480. The principle is similar to using a corkscrew to take out the cork from a wine bottle, so no more details will be given here.

[0057] In one embodiment, please refer to Figure 6 、 Figure 9 , the clamping member 430 includes a clamping cylinder 431 and two baffles 432. A clamping channel is formed inside the clamping cylinder 431, and a feed port and a discharge port communicating with the clamping channel are respectively formed at both ends of the clamping cylinder 431. The two baffles 432 are respectively arranged at the opening ends of the discharge port and are hinged to the clamping cylinder 431 via torsion springs. The telescopic end of the third linear driving member 480 can insert into the clamping cylinder 431, push out the new check valve located in the clamping channel, and insert it into the installation groove.

[0058] Further, the first linear driving member 250, the second linear driving member 440 and the third linear driving member 480 here are push rod motors that are conventional and easily purchasable on the market and are conventional settings well-known to those skilled in the art, so no more details will be given here.

[0059] like Figure 11 As shown, the present invention also provides a check valve inspection system, including an image acquisition module 500, a control module 600 and a check valve inspection device, the image acquisition module 500 includes a first camera 510 and a second camera 520, the first camera 510 and the second camera 520 are both connected to the support 100, for assisting the movement of the moving component 300, the control module 600 is configured to be communicatively connected with the driving part 312 of the moving component 300, the first camera 510, the second camera 520, the first linear drive member 250, the second linear drive member 440, the third linear drive member 480, the first pump body 221, the second pump body 222, the drive motor 470 and the slide 460.

[0060] The user can use the control module 600 to remotely control the moving assembly 300 to move to the installation location of the check valve, and use the first camera 510 and the second camera 520 to assist in controlling and completing the inspection and replacement of the check valve.

[0061] Furthermore, the control module 600 here is a common and easily purchased upper machine position in the market, having a PLC controller and a memory, which are conventional settings well known to those skilled in the art and will not be described in detail here.

[0062] In one embodiment, see Figure 1 , Figure 3 and Figure 4 The image acquisition module 500 also includes a third camera 530. The first camera 510 is arranged at the front end of the support 100, and is used to assist the moving component 300 to move and assist in locating the installation position of the check valve. The second camera 520 is arranged at the rear end of the support 100, and is used to assist the moving component 300 to move and assist in locating the installation position of the check valve. The third camera 530 is arranged relative to the crushing head 420 and the clamping member 430 on the connecting frame 410, which can facilitate the user to observe and control the crushing and replacement operations of the check valve.

[0063] Furthermore, the first camera 510, the second camera 520 and the third camera 530 are all common and easily purchased devices on the market, and belong to conventional settings well known to those skilled in the art, and will not be described in detail here.

[0064] In order to better understand the present invention, the following Figures 1 to 11 The technical solution of the present invention is described in detail: The support 100 is connected to the moving assembly 300 and can be moved freely. The housing 210 is provided with a housing 210, a liquid discharge member 220 and a detection member 230. A sealed cavity is formed inside the housing 210 and a first opening communicating with the sealed cavity is provided. The housing 210 can be sealed and abutted with the bottom of the water channel and covered on the non-return valve. The liquid discharge member 220 is used to empty the liquid in the sealed cavity. The detection member 230 is built in the housing 210 and is used to detect the air pressure in the sealed cavity. Compared with the prior art, the device can automatically move to the top of the non-return valve through the moving assembly 300, and the housing 210 is sealed and abutted with the bottom of the water channel so that the liquid discharge member 220 empties the liquid in the sealed cavity, and then the detection member 230 is used to detect the air pressure in the sealed cavity. The non-return valve can be judged whether it is normal by the change of the air pressure in the sealed cavity, which can replace manual underwater operations and has a high judgment accuracy.

[0065] The specific working process of the present invention is to first move to the vicinity of the underwater check valve through the crawler mobile platform 310. The process is as follows: the inspection device moves from the shore to the bottom of the channel through the crawler mobile platform 310, and then the first camera 510 scans the channel bottom environment and completes the positioning of the check valve. Then the inspection device moves to the vicinity of the check valve through the crawler mobile platform 310, and the process ends.

[0066] Next, the check valve is inspected visually, and the process is as follows: the first camera 510 locks the check valve, and then the first camera 510 captures the visual image of the check valve, and adjusts parameters by comparison to make the captured visual image clearer, and the process ends.

[0067] Furthermore, to determine whether the condition for apparent damage of the check valve is met, the process is as follows: the apparent image of the check valve taken by the first camera 510 is clarified and compared with the image of the normal check valve. If the apparent image of the check valve shows problems such as valve body damage, valve cover detachment, and valve body congestion, it means that the check valve meets the condition for apparent damage of the check valve. If the apparent image of the check valve does not show problems such as valve body damage, valve cover detachment, and valve body congestion, it means that the check valve does not meet the condition for apparent damage of the check valve, and the process ends.

[0068] Then, the performance of the check valve is tested, and the process is as follows: the inspection device moves the support 100 to the top of the check valve through the crawler mobile platform 310, and then the shell 210 moves downward, so that the detection chamber completely covers the check valve and the first seal 240 is in contact with the ground, and the first pump body 221 is used to pump water to form a pressure difference between the shell 210 and the outside to achieve an anchoring effect, and the second pump body 222 is used to change the internal pressure of the detection chamber to perform a performance test of the check valve, and the process ends.

[0069] Further, it is determined whether the check valve performance damage condition is met. The process is as follows: The second pump body 222 is pressurized. If the internal pressure of the detection chamber cannot rise normally, the check valve performance damage condition is met. If the internal pressure of the detection chamber can rise normally, then the second pump body 222 is depressurized. If the internal pressure of the detection chamber cannot drop normally after the second pump body 222 is depressurized, the check valve performance damage condition is met. If the internal pressure of the detection chamber can drop normally after the second pump body 222 is depressurized, the check valve performance damage condition is not met, and the process ends.

[0070] Finally, for crushing and replacement, the process is as follows: The inspection device moves the crushing head 420 to above the check valve return water valve through the crawler mobile platform 310. Subsequently, the spiral crushing drill bit moves to directly above the check valve return water valve through the horizontally arranged slide rail 450 and the slide table 460. The spiral crushing head 420 moves downward to contact the check valve return water valve and rotates into the check valve return water valve to damage the internal structure of the check valve return water valve. As the spiral crushing drill bit is retracted upward, the damaged check valve is taken out.

[0071] Further, the clamping member 430 moves the new check valve return water valve to directly above the check valve return water valve through the horizontally arranged slide rail 450 and the slide table 460. Subsequently, under the push of the third linear drive member 480, the new check valve return water valve moves downward, and the new check valve return water valve can be embedded at the installation groove where the original check valve is located, and the process ends.

[0072] The device reaches the surroundings of the underwater check valve return water valve through the crawler mobile platform 310, and then the image acquisition module 500 performs an apparent inspection on the check valve return water valve. If the appearance of the check valve return water valve is significantly damaged, the replacement component 400 is used to crush and replace the failed check valve return water valve. If the appearance of the check valve return water valve is good, the detection component 200 is used to perform a performance inspection on the check valve return water valve. If the check valve performance is damaged, the replacement component 400 is used to crush and replace the failed check valve. If the check valve performance is good, the inspection and replacement of the next check valve return water valve are carried out. Through the mutual cooperation of the control module 600, the signal and power transmission module, and the underwater operation module, the problems of low efficiency, poor effect, high cost, and high risk caused by manual underwater inspection and replacement of the check valve return water valve at the bottom of the water channel are solved.

[0073] With the above structure and system, the device can solve the technical problem in the prior art that since the underwater check valve repair machine can only perform maintenance and cleaning on the check valve return water valve and cannot accurately determine whether the check valve is damaged, it still requires manual underwater operation to determine whether the check valve return water valve is damaged.

[0074] The specific embodiments of the present invention described above do not limit the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A check valve inspection device for preventing backflow, characterized in that, Comprising: A support; A detection component, including a housing, a liquid discharging member and a detection member. An internal sealed cavity is formed inside the housing, and a first opening communicating with the sealed cavity is provided. The housing is slidably connected to the support. The liquid inlet end of the liquid discharging member communicates with the sealed cavity for emptying the liquid in the sealed cavity. The detection member is connected inside the housing for detecting the internal air pressure of the sealed cavity; And A moving component, connected to the support for driving the support and the detection component to move.

2. The non-return water return valve inspection device according to claim 1, characterized in that The detection component further includes a first sealing member and a first linear driving member. The first sealing member is connected to the opening end of the first opening. The first linear driving member is connected to the housing and the support for driving the housing to slide relative to the support and enabling the first sealing member to be sealingly abutted against the bottom of the water channel.

3. The check device for the non-return backwater valve according to claim 2, characterized in that, The detection component further includes a partition plate and a second sealing member. The partition plate is annular and connected to the inner wall of the housing. The partition plate divides the sealed cavity into an independent connection cavity and a detection cavity. The second sealing member is connected to the partition plate and can be sealingly abutted against the bottom of the water channel. The detection member is built in the detection cavity.

4. The check device for the non-return backwater valve according to claim 3, characterized in that The liquid discharging member includes a first pump body. The first pump body is connected to the support, and the liquid inlet end of the first pump body communicates with the inside of the connection cavity.

5. The non-return water valve inspection device according to claim 4, characterized in that, The liquid discharging member further includes a second pump body. The second pump body is connected to the support, and the liquid inlet end of the second pump body communicates with the inside of the connection cavity.

6. The non-return water valve inspection device according to claim 3, characterized in that, The detection member includes a pressure sensor. The pressure sensor is connected to the inner wall of the detection cavity for detecting the pressure in the detection cavity.

7. The non-return water valve inspection device according to claim 1, characterized in that An installation groove for installing a check valve for preventing backflow is formed at the bottom of the water channel. The check valve inspection device further includes a replacement component. The replacement component includes a connecting frame, a breaking head, a clamping member and a second linear driving member. The connecting frame is connected to the support. The breaking head is disposed opposite to the installation groove and slidably connected to the connecting frame. The breaking head can move closer to or away from the bottom of the water channel and insert into the check valve or take out the check valve in the installation groove. The clamping member is connected to the connecting frame and is provided with a clamping channel for clamping the check valve. The second linear driving member has a fixed end and a telescopic end. The fixed end of the second linear driving member is connected to the connecting frame, and the telescopic end is slidably disposed inside the clamping channel for pushing the check valve out of the clamping channel and sliding into the installation groove.

8. The check valve inspection device for preventing backflow according to claim 7, characterized in that, The replacement component further includes a slide rail and two sliding platforms. The slide rail is connected to the connecting frame. The two sliding platforms are spaced apart from each other and are both slidably connected to the slide rail. The two sliding platforms are respectively connected to the breaking head and the clamping member.

9. The check valve inspection device for preventing backflow according to claim 8, wherein, The replacement component further includes a driving motor and a third linear driving member. The output shaft of the driving motor is connected to the breaking head. The fixed end of the third linear driving member is connected to one of the sliding platforms, and the telescopic end is connected to the fixed end of the driving motor.

10. A check valve inspection system for preventing backflow, characterized in that, It includes an image acquisition module, a control module, and a check valve inspection device for preventing backflow as described in any one of claims 1-9. The image acquisition module includes a first camera and a second camera. Both the first camera and the second camera are connected to the support for assisting the movement of the moving component. The control module is configured to be communicatively connected to the moving component, the first camera, the second camera, the first linear drive, the second linear drive, the third linear drive, the first pump, the second pump, the drive motor, and the slide table.

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