CN213933807U

CN213933807U - Visual water quality monitoring device based on wireless communication network tracking

Info

Publication number: CN213933807U
Application number: CN202021719100.7U
Authority: CN
Inventors: 孔卫强; 许为民; 陶伟; 李铭海; 房海勇
Original assignee: Xinjiang Herun Water Industry Co ltd
Current assignee: Xinjiang Herun Water Industry Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-08-10
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a visual water quality monitoring device based on wireless communication network trails, which comprises a ship body, the left side of hull set up first through-hole, connect the rotation axis through sealed bearing in the first through-hole, the left side fixed mounting screw of rotation axis periphery, be equipped with wireless signal transceiver module in the controller, the battery respectively with the motor, water quality monitoring device, a water pump, the motorised valve, first multistage electric telescopic handle, the multistage electric telescopic handle of second and controller pass through circuit connection, the output of controller respectively with the motor, a water pump, the motorised valve, first multistage electric telescopic handle, the multistage electric telescopic handle of second passes through circuit connection, the controller passes through wireless signal transceiver module and uses wireless signal with long-range visual monitoring platform. This device can carry out large-scale monitoring, can increase work efficiency, avoids monitoring devices to soak in aqueous always, can take a sample when monitoring sewage and preserve to follow-up further analysis to sewage.

Description

Visual water quality monitoring device based on wireless communication network tracking

Technical Field

The utility model belongs to the monitoring devices field, specifically speaking are visual water quality monitoring device based on wireless communication network trails.

Background

Water quality monitoring is one of the main means of water resource management and pollution control, the purpose is to master the current situation and the development trend of water quality, provide the basis for taking pollution control countermeasures, also provide basic data and means for carrying out water resource quality evaluation, prediction and forecast, make water quality supervision in time, effectual expansion, alleviate the harm that water pollution caused, and in current water quality monitoring device, often can't carry out large-scale monitoring to waters on a large scale, can only carry out sampling monitoring to some regions, cause the sample quantity too little, the data statistics inaccuracy, and in current waters water quality monitoring, adopt artifical water sample collection figure few, work efficiency is low, adopt the monitoring facilities who floats in aqueous despite work efficiency is high, but monitoring device long-time soaking in aqueous can lead to the life who influences monitoring device. And monitored unqualified water cannot be stored for further analysis of pollution, and due to the flowing of the water body, the subsequent manually sampled water and the monitored water are not the same part, so that the subsequent further analysis of the polluted water quality is influenced, and therefore the visual water quality monitoring device based on wireless communication network tracking is designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a visual water quality monitoring device based on wireless communication network trails for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

a visual water quality monitoring device based on wireless communication network tracking comprises a ship body, wherein a first through hole is formed in the left side of the ship body, a rotating shaft is connected into the first through hole through a sealing bearing, a propeller is fixedly installed on the left side of the periphery of the rotating shaft, a motor is fixedly installed on the left side of the inner wall of the ship body through a connecting rod, the left end of a rotating shaft of the motor is fixedly connected with the right end of the rotating shaft, a second through hole is formed in the left side of the bottom surface of the ship body, a rudder blade is installed in the second through hole through the sealing bearing, the top end of the rudder blade is fixedly connected with a reversing device, a cylinder body is fixedly installed on the rear side of the middle part of the inner wall of the ship body, a water quality monitoring device is fixedly installed in the middle part of the inner wall of the cylinder body, the right side of the top surface of the ship body is fixedly connected with the left side of the bottom surface of a water pump, a first multi-stage electric telescopic rod is fixedly installed on the right side of the bottom surface of the water pump, a water inlet pipe of the water pump is a telescopic pipe, and the lower end of the telescopic pipe is fixedly connected with the lower end of the first multi-stage electric telescopic rod, the outer end of a water outlet pipe of the water pump is positioned in the barrel, water outlets are respectively formed in the left side and the right side of the bottom surface of the inner wall of the barrel, electric valves are respectively and fixedly installed in the water outlets, the water outlet of the electric valve on the left side is fixedly connected with one end of a water drainage short pipe, the water outlet of the electric valve on the right side is fixedly connected with a water drainage long pipe, the outer end of the water drainage long pipe is positioned on the outer side of the hull, a second multi-stage electric telescopic rod is fixedly installed on the right side of the inner wall of the hull, a transverse plate is fixedly installed at the left end of the second multi-stage electric telescopic rod, a row of a plurality of sampling bottles are arranged on the top surface of the transverse plate, a row of a plurality of screw holes are transversely formed in the top surface of the transverse plate, external threads are respectively formed in the bottom sides of the peripheries of the sampling bottles, the external threads of the sampling bottles can be in threaded connection with the screw holes, a controller and a storage battery are fixedly installed on the inner wall of the hull, and a wireless signal receiving and sending module is arranged in the controller, and the storage battery is respectively connected with a motor, a water quality monitoring device, The water pump, the motorised valve, first multistage electric telescopic handle, the multistage electric telescopic handle of second and controller pass through circuit connection, and the input and the water quality monitoring device of controller pass through circuit connection, and the output of controller passes through circuit connection with motor, water pump, motorised valve, first multistage electric telescopic handle, the multistage electric telescopic handle of second respectively, and the controller passes through wireless signal transceiver module and uses wireless signal connection with long-range visual monitoring platform.

As above a visual water quality monitoring device based on wireless communication network trails, the switching-over device include that the bearing is installed at the first gear of hull inner wall left side downside, the first helical gear of the right side fixed mounting suit of first gear, the left side bearing installation second helical gear of hull inner wall bottom surface, first helical gear and the meshing cooperation of second helical gear, second helical gear top surface off-centre position fixed mounting quarter butt, the articulated left end of connecting first horizontal pole of periphery of quarter butt, the articulated left end of connecting the second horizontal pole of right-hand member of first horizontal pole, the right-hand member of second horizontal pole and the top fixed connection of rudder leaf, the right-hand member fixed connection square bar's of rotation axis periphery left end, the right-hand member of square bar and the left end fixed connection of motor shaft, the incomplete gear tooth that the periphery suit of square bar can only remove can cooperate with first gear meshing.

As the visual water quality monitoring device based on wireless communication network tracking, the right side bearing of incomplete gear install the ring, the right side fixed mounting electric telescopic handle of ring, the right side of electric telescopic handle periphery and the bottom surface fixed connection of motor.

According to the visual water quality monitoring device based on wireless communication network tracking, the right side of the periphery of the movable rod of the electric telescopic rod is fixedly provided with the fixed needle.

As the visual water quality monitoring device based on wireless communication network tracking, the top surface of the sampling bottle is fixedly connected with the lower end of the ball valve respectively, the upper end of the ball valve can be in sliding contact fit with the lower end of the drainage short pipe, the second gear is fixedly installed on the rear side of the ball valve rotating handle, the two sides of the drainage short pipe are provided with the first rack and the second rack respectively, and the periphery of the second gear can be in meshing fit with the top surface of the first rack and the bottom surface of the second rack respectively.

According to the visual water quality monitoring device based on wireless communication network tracking, the filter screen is fixedly installed on the lower side of the inner wall of the water inlet pipe of the water pump, and the outer end of the long drainage pipe is communicated with the inside of the water inlet pipe of the water pump.

The utility model has the advantages that: this device can carry out large-scale monitoring, can increase work efficiency, avoids monitoring devices to soak in aqueous always, can take a sample when monitoring sewage and preserve to follow-up further analysis to sewage. When the device is used, the motor is started to drive the rotating shaft and the propeller to rotate, the moving direction of the ship body in water is controlled through the rudder blade, when monitoring is needed, the first multi-stage electric telescopic rod is extended to drive the lower end of the water inlet pipe of the water pump to be positioned at a proper depth, the water pump is started to pump water, water is injected into the cylinder body, the water quality monitoring device is immersed, the water quality monitoring device monitors the water quality, when the water quality is qualified, the electric valve on the right side is controlled by the controller to be opened, the water is discharged through the long drainage pipe, when the water quality is unqualified, the controller controls the second multi-stage electric telescopic rod to be extended by one section (the length of each section of the second multi-stage electric telescopic rod is the same as the length between two adjacent sampling bottles), the corresponding sampling bottle is positioned below the short drainage pipe, the controller controls the electric valve on the left side to be opened for one second, the unqualified water is injected into the sampling bottle, then the electric valve on the right side is opened to discharge the rest water, can accomplish once the monitoring, through the continuous removal in aqueous of hull, both increased monitoring range, can increase monitoring quantity again, not monitoring time measuring simultaneously, there is not water in the barrel, avoids water quality monitoring device to soak always in aqueous influence life, can collect the save to unqualified water for follow-up can be to this part unqualified water do further analysis.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; fig. 2 is an enlarged view of a portion I of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A visual water quality monitoring device based on wireless communication network tracking comprises a ship body 1, wherein a first through hole 2 is formed in the left side of the ship body 1, a rotating shaft 3 is connected into the first through hole 2 through a sealing bearing, a propeller 4 is fixedly installed on the left side of the periphery of the rotating shaft 3, a motor 5 is fixedly installed on the left side of the inner wall of the ship body 1 through a connecting rod, the left end of the rotating shaft of the motor 5 is fixedly connected with the right end of the rotating shaft 3, a second through hole 6 is formed in the left side of the bottom surface of the ship body 1, a rudder blade 7 is installed in the second through hole 6 through a sealing bearing, a reversing device 8 is fixedly connected with the top end of the rudder blade 7, a cylinder body 9 is fixedly installed on the rear side of the middle part of the inner wall of the ship body 1, a water quality monitoring device 10 is fixedly installed in the middle part of the inner wall of the cylinder body 9, the right side of the top surface of the ship body 1 is fixedly connected with the left side of a water pump 12, and a first multi-stage electric telescopic rod 13 is fixedly installed on the right side of the bottom surface of the water pump 12, the water inlet pipe of the water pump 12 is a telescopic pipe, the lower end of the water inlet pipe is fixedly connected with the lower end of a first multi-stage electric telescopic rod 13, the outer end of the water outlet pipe of the water pump 12 is positioned in a cylinder 9, the left side and the right side of the bottom surface of the inner wall of the cylinder 9 are respectively provided with a water outlet 11, the inside of the water outlet 11 is respectively and fixedly provided with an electric valve 14, the water outlet of the electric valve 14 at the left side is fixedly connected with one end of a short water outlet pipe 15, the water outlet of the electric valve 14 at the right side is fixedly connected with a long water outlet pipe 16, the outer end of the long water outlet pipe 16 is positioned at the outer side of a ship body 1, the right side of the inner wall of the ship body 1 is fixedly provided with a second multi-stage electric telescopic rod 17, the left end of the second multi-stage electric telescopic rod 17 is fixedly provided with a transverse plate 18, the top surface of the transverse plate 18 is provided with a row of a plurality of sampling bottles 19, the top surface of the transverse row of the transverse holes 25 are respectively provided with external threads, the external threads at the periphery of the sampling bottles 19, fixed installation controller 23 of inner wall of hull 1 and battery 24, be equipped with wireless signal transceiver module in the controller 23, battery 24 respectively with motor 5, water quality monitoring device 10, water pump 12, motorised valve 14, first multistage electric telescopic handle 13, second multistage electric telescopic handle 17 and controller 23 pass through circuit connection, controller 23's input passes through circuit connection with water quality monitoring device 10, controller 23's output respectively with motor 5, water pump 12, motorised valve 14, first multistage electric telescopic handle 13, second multistage electric telescopic handle 17 passes through circuit connection, controller 23 uses wireless signal with long-range visual monitoring platform through wireless signal transceiver module to be connected. This device can carry out large-scale monitoring, can increase work efficiency, avoids monitoring devices to soak in aqueous always, can take a sample when monitoring sewage and preserve to follow-up further analysis to sewage. When the device is used, the motor 5 is started to drive the rotating shaft 3 and the propeller 4 to rotate, the moving direction of the ship body 1 in water is controlled through the rudder blade 7, when monitoring is needed, the first multi-stage electric telescopic rod 13 is extended to drive the lower end of the water inlet pipe of the water pump 12 to be positioned at a proper depth, the water pump 12 is started to pump water, the water is injected into the barrel 9, the water quality monitoring device 10 is immersed, the water quality monitoring device 10 monitors the water quality, when the water quality is qualified, the controller 23 controls the electric valve 14 on the right side to be opened, the water is discharged through the long water discharge pipe 16, when the water quality is unqualified, the controller 23 controls the second multi-stage electric telescopic rod 17 to be extended by one section (the length of each section of the second multi-stage electric telescopic rod 17 is the same as the length between two adjacent sampling bottles 19), the corresponding sampling bottle 19 is positioned below the short water discharge, in pouring into the sampling bottle with unqualified water, open later that the motorised valve 14 on right side discharges remaining water, can accomplish a monitoring, through the continuous removal in aqueous of hull 1, both increased monitoring range, can increase monitoring quantity again, when not monitoring simultaneously, there is not water in the barrel 9, avoid water quality monitoring device 10 to soak always in aqueous influence life, can collect the save unqualified water, make follow-up can do further analysis to this partial unqualified water.

Specifically, as shown in the figure, the reversing device 8 according to the present embodiment includes a first gear 81 bearing-mounted on the lower left side of the inner wall of the hull 1, a first helical gear 82 fixedly mounted on the right side of the first gear 81 in a sleeved manner, a second helical gear 83 bearing-mounted on the left side of the bottom surface of the inner wall of the hull 1, the first helical gear 82 meshing-fitted with the second helical gear 83, a short bar 84 fixedly mounted on the eccentric position of the top surface of the second helical gear 83, the outer periphery of the short bar 84 is hinged to the left end of a first cross bar 85, the right end of the first cross bar 85 is hinged to the left end of a second cross bar 86, the right end of the second cross bar 86 is fixedly connected to the top end of the rudder blade 7, the right end of the outer periphery of the rotating shaft 3 is fixedly connected to the left end of a square bar 87, the right end of the square bar 87 is fixedly connected to the left end of the rotating shaft of the motor 5, the outer periphery of the square bar 87 is sleeved with an incomplete gear 88 capable of moving only left and right, and the gear teeth of the incomplete gear 88 can mesh-right with the first gear 81. The periphery of the incomplete gear 88 is only provided with 1 gear tooth, the motor 5 rotates to gradually drive the first gear 81 to rotate so as to further drive the first helical gear 82 and the second helical gear 83 to rotate, the second helical gear 83, the short rod 84, the first cross rod 85, the second cross rod 86 and the rudder blade 7 form a double-rocker mechanism, the rudder blade 7 can swing when the second helical gear 83 rotates, the position of the rudder blade 7 can be adjusted, and when the ship is in a longer water area such as a river channel, the ship body 1 can move forwards in an S shape in the river channel by meshing and matching the gear teeth of the incomplete gear 88 with the first gear 81, so that the measurement area is increased; in a narrow area, the rudder blade 7 is parallel to the rotary shaft 5, that is, the hull 5 can be moved linearly, and in a wide water area such as a lake or a pond, the position of the rudder blade 7 is adjusted so that the rudder blade 7 is not parallel to the rotary shaft 5, the hull 1 can be moved in an underwater circular manner, and the movement locus of the device can be adjusted in accordance with the water area.

Specifically, as shown in the figure, the right side bearing of the incomplete gear 88 of the present embodiment is provided with a circular ring 89, the right side of the circular ring 89 is fixedly provided with an electric telescopic rod 810, and the right side of the outer periphery of the electric telescopic rod 810 is fixedly connected with the bottom surface of the motor 5. When the electric telescopic rod 810 extends, the incomplete gear 88 is pushed to move leftwards on the periphery of the square rod 87, and the gear teeth of the incomplete gear 88 are not meshed with the first gear 81 any more, so that the first gear 81 is not driven to rotate.

Further, as shown in the figure, a fixed needle 811 is fixedly installed on the right side of the periphery of the movable rod of the electric telescopic rod 810 according to the embodiment. When the electric telescopic rod 810 extends, the bottom end of the fixing needle 811 can be inserted into the gear teeth of the first gear 81 when the gear teeth of the incomplete gear 88 are no longer meshed with the first gear 81, so that the first gear 81 can be fixed, and the influence on the normal running track of the ship body caused by the rotation of the rudder blade 7 under the impact of water flow is avoided.

Furthermore, as shown in the figure, the top surface of the sampling bottle 19 of the present embodiment is fixedly connected to the lower end of the ball valve 20, the upper end of the ball valve 20 can be in sliding contact with and fit with the lower end of the drainage short pipe 15, the rear side of the rotating handle of the ball valve 20 is fixedly provided with a second gear 26, two sides of the drainage short pipe 15 are provided with a first rack 21 and a second rack 22, respectively, and the periphery of the second gear 26 can be engaged with and fit with the top surface of the first rack 21 and the bottom surface of the second rack 22, respectively. When the transverse plate 18 moves leftwards, the periphery of the corresponding second gear 26 is meshed and matched with the top surface of the first rack 21, the second gear 26 rotates, the corresponding ball valve 20 is opened, the upper end of the ball valve 20 is in sliding contact and matched with the lower end of the drainage short pipe 15, unqualified water can be injected into the sampling bottle 19, the transverse plate 18 moves leftwards again, the periphery of the second gear 26 is meshed and matched with the bottom surface of the second rack 22, the second gear 26 rotates reversely, the corresponding ball valve 20 is closed, the ball valve 20 can be opened during water injection, the ball valve 20 is closed after the water injection is completed, and the situation that water in the sampling bottle is shaken on the water surface of the ship body 1 is avoided.

Furthermore, as shown in the drawings, a filter screen is fixedly installed on the lower side of the inner wall of the water inlet pipe of the water pump 12 according to the embodiment, and the outer end of the long drain pipe 16 is communicated with the inside of the water inlet pipe of the water pump 12. Through the filter screen, can avoid when drawing water with the rubbish and the floater suction of aquatic in barrel 9, through drainage long tube 16, when carrying out the drainage, can carry out the backwash to the filter screen, avoid the filter screen to block up.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a visual water quality monitoring device based on wireless communication network trails, includes hull (1), its characterized in that: the water quality monitoring device is characterized in that a first through hole (2) is formed in the left side of a ship body (1), a rotating shaft (3) is connected in the first through hole (2) through a sealing bearing, a propeller (4) is fixedly installed on the left side of the periphery of the rotating shaft (3), a motor (5) is fixedly installed on the left side of the inner wall of the ship body (1) through a connecting rod, the left end of the rotating shaft of the motor (5) is fixedly connected with the right end of the rotating shaft (3), a second through hole (6) is formed in the left side of the bottom surface of the ship body (1), a rudder blade (7) is installed in the second through hole (6) through a sealing bearing, a reversing device (8) is fixedly connected to the top end of the rudder blade (7), a cylinder body (9) is fixedly installed on the rear side of the middle part of the inner wall of the ship body (1), a water quality monitoring device (10) is fixedly installed in the middle part of the inner wall of the cylinder body (9), a left side of the right side of the top surface of the ship body (1) is fixedly connected with the bottom surface of a water pump (12), a first multi-stage electric telescopic rod (13) is fixedly installed on the right side of the bottom surface of the water pump (12), a water inlet pipe of a water pump (12) is a telescopic pipe, the lower end of the water inlet pipe is fixedly connected with the lower end of a first multi-stage electric telescopic rod (13), the outer end of a water outlet pipe of the water pump (12) is positioned in a barrel body (9), water outlet ports (11) are respectively formed in the left side and the right side of the bottom surface of the inner wall of the barrel body (9), electric valves (14) are respectively and fixedly installed in the water outlet ports (11), a water outlet port of the electric valve (14) on the left side is fixedly connected with one end of a short water outlet pipe (15), a water outlet port of the electric valve (14) on the right side is fixedly connected with a long water outlet pipe (16), the outer end of the long water outlet pipe (16) is positioned outside a ship body (1), a second multi-stage electric telescopic rod (17) fixedly installed on the right side of the inner wall of the ship body (1) is fixedly installed on the left side of the second multi-stage electric telescopic rod (17), a transverse plate (18) is fixedly installed on the left side, a row of the transverse plate (18) is provided with a plurality of sampling bottles (19), a row of screw holes (25) transversely formed on the top surface of the transverse plate (18), the external screw thread is seted up respectively to the bottom side of sampling bottle (19) periphery, the external screw thread of sampling bottle (19) periphery can with screw (25) threaded connection, the fixed installation controller (23) of inner wall of hull (1) and battery (24), be equipped with wireless signal transceiver module in controller (23), battery (24) respectively with motor (5), water quality monitoring device (10), water pump (12), motorised valve (14), first multistage electric telescopic handle (13), second multistage electric telescopic handle (17) and controller (23) pass through circuit connection, the input and the water quality monitoring device (10) of controller (23) pass through circuit connection, the output of controller (23) respectively with motor (5), water pump (12), motorised valve (14), first multistage electric telescopic handle (13), second multistage electric telescopic handle (17) pass through circuit connection, controller (23) use wireless signal with long-range visual monitoring platform through wireless signal transceiver module And (4) connecting.

2. The visual water quality monitoring device based on wireless communication network tracking according to claim 1, characterized in that: the reversing device (8) comprises a first gear (81) which is arranged on the left lower side of the inner wall of the ship body (1) through a bearing, a first helical gear (82) which is fixedly arranged on the right side of the first gear (81) in a sleeved mode, a second helical gear (83) which is arranged on the left side of the bottom surface of the inner wall of the ship body (1) through a bearing, the first helical gear (82) is meshed with the second helical gear (83) in a matched mode, a short rod (84) is fixedly arranged on the top surface of the second helical gear (83) in an eccentric mode, the periphery of the short rod (84) is hinged and connected with the left end of a first cross rod (85), the right end of the first cross rod (85) is hinged and connected with the left end of a second cross rod (86), the right end of the second cross rod (86) is fixedly connected with the top end of a rudder blade (7), the right end of the periphery of a rotating shaft (3) is fixedly connected with the left end of a square rod (87), the right end of the square rod (87) is fixedly connected with the left end of a rotating shaft of a motor (5), and an incomplete gear (88) which can only move left and right is sleeved on the periphery of the square rod (87), the gear teeth of the incomplete gear (88) can be meshed with the first gear (81).

3. The visual water quality monitoring device based on wireless communication network tracking according to claim 2, characterized in that: the right side bearing installation ring (89) of incomplete gear (88), the right side fixed mounting electric telescopic handle (810) of ring (89), the right side of electric telescopic handle (810) periphery and the bottom surface fixed connection of motor (5).

4. The visual water quality monitoring device based on wireless communication network tracking according to claim 3, characterized in that: and a fixed needle (811) is fixedly arranged on the right side of the periphery of the movable rod of the electric telescopic rod (810).

5. The visual water quality monitoring device based on wireless communication network tracking according to claim 1, characterized in that: the top surface of sampling bottle (19) lower extreme of fixed connection ball valve (20) respectively, the upper end of ball valve (20) can with the lower extreme sliding contact cooperation of drainage nozzle stub (15), the rear side fixed mounting second gear (26) of ball valve (20) turning handle, the effect both sides of drainage nozzle stub (15) are equipped with first rack (21) and second rack (22) respectively, the periphery of second gear (26) can respectively with the top surface of first rack (21) and the bottom surface meshing cooperation of second rack (22).

6. The visual water quality monitoring device based on wireless communication network tracking according to claim 1, characterized in that: the lower side of the inner wall of the water inlet pipe of the water pump (12) is fixedly provided with a filter screen, and the outer end of the long drainage pipe (16) is communicated with the inside of the water inlet pipe of the water pump (12).