CN113089765A

CN113089765A - Secondary water supply anti-overflow water protection equipment

Info

Publication number: CN113089765A
Application number: CN202110427915.0A
Authority: CN
Inventors: 程立; 高晓昆; 刘新贵
Original assignee: Chongqing Xinsheng Environmental Protection Technology Co ltd
Current assignee: Chongqing Xinsheng Environmental Protection Technology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-07-09
Anticipated expiration: 2041-04-21
Also published as: CN113089765B

Abstract

The invention discloses a secondary water supply anti-overflow protection device, which comprises a channel steel base, wherein the back of the top of the channel steel base is fixedly connected with a support, the inner cavity of the support is fixedly connected with a water storage tank, the left side of the top of the water storage tank is fixedly connected with a vacuum suppressor, the right side of the top of the water storage tank is fixedly connected with a water inlet pipe, the middle part of the outer ring of the water inlet pipe is fixedly sleeved with a Y-shaped water filter, the right side of the outer ring of the water inlet pipe is fixedly sleeved with an electromagnetic valve, the middle part of the bottom of the water storage tank is fixedly connected with a first water outlet pipe, the front of the first water outlet pipe is fixedly connected with a water distribution pipe, the front of the outer ring of the water distribution pipe is fixedly connected with a branch pipe, one end of the front of the branch pipe is fixedly connected, through the cooperation of above-mentioned structure, can avoid the too high condition that appears the overflow of the water level in the water storage tank.

Description

Secondary water supply anti-overflow water protection equipment

Technical Field

The invention relates to the technical field of secondary water supply, in particular to an anti-overflow protection device for secondary water supply.

Background

The secondary water supply is a form of storing and pressurizing urban public water supply or self-built facility water supply and supplying the water to users or self-use through pipelines, so that the secondary water supply is the only selection mode of high-rise water supply. Whether the secondary water supply facility is built, designed and constructed according to the regulations or not is directly related to the quality of secondary water supply, water pressure and water supply safety, and is closely related to the normal and stable life of people.

The prior secondary water supply equipment adopts a frequency-pump constant pressure control system, a same frequency and same speed control system and the like, which have the advantages of soft start and stop, stable water supply pressure, electricity saving and the like, improve the reliability of the secondary water supply equipment, input water resources into a water storage tank and then carry out overall distribution of the water resources, monitor the water level of the water storage tank by using a liquid level sensor in the process, manually close a valve or close the valve by system control by staff when the water level reaches a certain height, and still have problems during execution, for example, the internal water level cannot be detected when the liquid level sensor fails or fails, and overflow can be caused, besides, the raw water contains a large amount of ions such as calcium, magnesium, sodium and the like, and precipitates which are difficult to dissolve in water are formed along with the rapid rise of the concentrations of calcium, magnesium and sodium, scale may form and may cause internal clogging that affects the useful life of the equipment.

Disclosure of Invention

The invention aims to provide secondary water supply anti-overflow protection equipment to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a secondary water supply anti-overflow water protection equipment, including the channel-section steel base, the back fixedly connected with support at channel-section steel base top, the inner chamber fixedly connected with water storage tank of support, the left side fixedly connected with vacuum suppressor at water storage tank top, the right side fixedly connected with inlet tube at water storage tank top, the fixed Y type water purifier that has cup jointed in middle part of inlet tube outer lane, the fixed solenoid valve that has cup jointed in right side of inlet tube outer lane, the first outlet pipe of middle part fixedly connected with of water storage tank bottom, the positive fixedly connected with distributive pipe of first outlet pipe, the positive fixedly connected with tributary pipe of the outer lane of distributive pipe, the positive one end fixedly connected with mechanism that draws water of tributary pipe, the middle part swing joint of water storage tank inner chamber bottom has adaptive control mechanism.

Preferably, the left side fixedly connected with switch board at channel-section steel base top back is provided with display screen and operating button on the switch board.

Preferably, the water pumping mechanism comprises a mounting plate, a straight-through pipe is fixedly connected to the middle of the top of the mounting plate, a second branch pipe is fixedly connected to the back of the outer ring of the straight-through pipe, a connector is fixedly connected to the back of the outer ring of the second branch pipe, the back of the inner cavity of the connector is connected with the water distribution pipe, first support rods are fixedly connected to four corners of the top of the mounting plate, a top plate is fixedly connected to the top of the first support rods, and a water suction pump is fixedly.

Preferably, adaptive control mechanism includes the vertical rod, the bottom of vertical rod and the bottom fixed connection of water storage tank inner wall, the top fixedly connected with stopper of vertical rod, the outer lane fixedly connected with floating block of vertical rod, the top fixedly connected with second branch of floating block, the top fixedly connected with of second branch holds the piece, the bellmouth has been seted up to the inner chamber that holds the piece, the bellmouth is the oblique opening, its bottom radius is less than the top radius, the lower part of vertical rod outer lane is provided with the active carbon adsorption piece.

Preferably, the bottom of inductor holds the piece and is the clinohedral, and the minimum radius of bellmouth is less than the radius of stopper, and the slope department diameter of bellmouth is greater than the diameter of stopper and its bottom radius is less than the top radius, and just corresponds with bellmouth position and size, and the position on inductor outer wall bottom inclined plane is seted up flutedly, and the inner chamber of recess is provided with the extrusion piece, and the back of extrusion piece is provided with the spring.

Preferably, the minimum radius of the socket is smaller than the radius of the limiting block, and the diameter of the inclined part of the socket is larger than that of the limiting block.

Preferably, the distance from the socket to the inductor at the uppermost end of the vertical rod is less than the distance from the limiting block to the inductor.

Compared with the prior art, the invention has the beneficial effects that:

1. this secondary water supply anti-overflow water protection equipment, at first switch on power supply starting equipment through the switch board, water gets into from the inlet tube, the fixed Y type water purifier that has cup jointed in middle part of inlet tube outer lane, the inner chamber of Y type water purifier is provided with the net that leads to water, the specification of the net that leads to water is 20-30 meshes, after liquid gets into the net that leads to water through being responsible for, solid impurity particle is blockked in leading to the water net, and clean fluid passes through the net that leads to water and is discharged by Y type water purifier export, then enter into the water storage tank, the first outlet pipe from the bottom is taken out again, then it is intraductal to divide the water pipe flow direction tributary, then discharge from each outlet pipe, provide clean no impurity water resource for the secondary water.

2. The secondary water supply anti-overflow protection equipment comprises a water inlet pipe, a water storage tank, a floating block, fan blades, an adsorption net, a vertical rod, a spiral line, an inner ring and an active carbon adsorption piece, wherein water enters the water storage tank through the water inlet pipe, the floating block rises along with the rising of the water level, the outer wall of the floating block is provided with the fan blades, the inner cavity of the fan blades is provided with the adsorption net, the spiral line is arranged outside the vertical rod, the inner ring of the floating block is provided with an inner thread, the inner thread is meshed and sleeved with the spiral line on the outer ring of the vertical rod, the floating block can slowly rotate and rise when the water level rises, the fan blades are driven to rotate, the air flow in fluid can be driven to move, a vortex is generated, trace dust carried in the fluid can be gathered; when the floating block rises to the position of the limiting block, the floating block is blocked by the limiting block, at the moment, the socket is contacted with the inductor, wherein the bearing port is an oblique opening, the bottom radius of the bearing port is smaller than the top radius, the bottom bearing block of the inductor is an inclined plane body and corresponds to the position and the size of the bearing port, a groove is arranged at the position of the bottom inclined plane of the outer wall of the inductor, an extrusion block is arranged in the inner cavity of the groove, a spring is arranged at the back of the extrusion block, the extrusion block is extruded by the inclined plane of the bearing port and shrinks to the inner cavity of the groove, and then the spring is extruded, when the extrusion block is completely accommodated in the groove, the spring can extrude the remote sensor arranged inside and trigger the remote sensor, the remote sensor in the electromagnetic valve is wirelessly connected with the remote sensor in the inductor, the remote sensor in the inductor can be started by triggering the remote sensor in the electromagnetic valve, then the electromagnetic valve is closed, and the condition that water in the water storage tank is overhigh and overflows is avoided.

3. This secondary water supply anti-overflow water protection equipment sets up the circuit at the active carbon adsorption piece, can electrolyze some chemicals that the aquatic contains after the switch-on circuit, through the anion and cation conversion of electricity, detach the calcium, magnesium, sodium plasma in the aquatic, can effectually prevent the incrustation scale, the life of extension equipment to can reach and soften quality of water, improve the effect of water supply quality.

4. This secondary water supply anti-overflow water protection equipment utilizes the negative pressure of water to make the floating block rise along the vertical pole rotation, drives the flabellum and rotates, drives the air current motion in the fluid then, produces the swirl, and at this in-process, the consumption that does not consume any electricity can the energy saving, filters the raw water with the adsorption net simultaneously, can not produce other harm quality of water and the particulate matter of equipment because of chemical reaction, green.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic diagram of the architecture of the adaptive control mechanism of the present invention;

FIG. 4 is a schematic view of an inductor according to the present invention;

FIG. 5 is a cross-sectional view of the water storage tank of the present invention.

In the figure: 1. a channel steel base; 2. a support; 3. a water storage tank; 4. a vacuum suppressor; 5. a water inlet pipe; 6. a Y-type water filter; 7. an electromagnetic valve; 8. a first water outlet pipe; 9. a water diversion pipe; 10. a bypass pipe; 11. a water pumping mechanism; 111. mounting a plate; 112. a straight-through pipe; 113. a second branch pipe; 114. a connector; 115. a first support bar; 116. a top plate; 117. a water pump; 12. an adaptive control mechanism; 121. a vertical rod; 122. a limiting block; 123. floating blocks; 124. a second support bar; 125. a bearing block; 126. a socket; 127. an activated carbon adsorption sheet; 13. an inductor; 131. a groove; 132. extruding the block; 14. a control cabinet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-5, the present invention provides a technical solution: a secondary water supply anti-overflow protection device comprises a channel steel base 1, a support 2 is fixedly connected to the back of the top of the channel steel base 1, a water storage tank 3 is fixedly connected to the support 2, a vacuum suppressor 4 is fixedly connected to the left side of the top of the water storage tank 3, a water inlet pipe 5 is fixedly connected to the right side of the top of the water storage tank 3, a Y-shaped water filter 6 is fixedly sleeved outside the water inlet pipe 5, a water through net is arranged in an inner cavity of the Y-shaped water filter 6, the water through net is 20-30 meshes in size, solid impurity particles are blocked in the water through net after liquid enters the water through a main pipe, clean fluid is discharged from an outlet of the Y-shaped water filter 6 through the water through net, an electromagnetic valve 7 is fixedly sleeved on the right side outside the water inlet pipe 5, a remote sensor is arranged in the electromagnetic valve 7, a first water outlet pipe 8 is fixedly connected to the middle of the bottom of the, the outer ring of the water distribution pipe 9 is fixedly connected with a branch pipe 10, and one end of the front surface of the branch pipe 10 is fixedly connected with a water pumping mechanism 11; the middle part of 3 inner chamber bottoms of water storage tank is provided with self-adaptation control mechanism 12, and the middle part fixedly connected with inductor 13 at 3 inner chamber tops of water storage tank is provided with the remote sensing ware equally in inductor 13's inside, and two remote sensing wares pass through wireless response and connect, and 1 top left side fixedly connected with switch board 14 of channel-section steel base is provided with display screen and operating button on the switch board 14.

The water pumping mechanism 11 comprises a mounting plate 111, a straight pipe 112 is fixedly connected to the middle of the top of the mounting plate 111, a second branch pipe 113 is fixedly connected to the back of the outer ring of the straight pipe 112, a connector 114 is fixedly connected to the back of the outer ring of the second branch pipe 113, the back of the inner cavity of the connector 114 is connected with the water distribution pipe 9, first support rods 115 are fixedly connected to four corners of the top of the mounting plate 111, a top plate 116 is fixedly connected to the top of the first support rods 115, a water pump 117 is fixedly connected to the top of the top plate 116, and a water outlet pipe is arranged.

In this embodiment, first switch on power supply opening equipment through switch board 14, water gets into from inlet tube 5, the fixed cup joint Y type water purifier 6 that has been put through in the middle part of inlet tube 5 outer lane, the inner chamber of Y type water purifier 6 is provided with the net that leads to water, the specification of the net that leads to water is 20-30 meshes, after liquid got into the net that leads to water through inlet tube 5, solid impurity particle was blockked in leading to the water net, and clean fluid passes through the net and is discharged by Y type water purifier 6 export through leading to the water, then get into in water storage tank 3, the first outlet pipe 8 of follow bottom is taken out again, then in water diversion pipe 9 flow direction branch flow tube 10, then discharge from each outlet pipe, provide clean water resource without impurity for the secondary water supply.

Wherein, the adaptive control mechanism 12 comprises a vertical rod 121, the bottom of the vertical rod 121 is fixedly connected with the bottom of the inner wall of the water storage tank 3, the top of the vertical rod 121 is fixedly connected with a limit block 122, the outer ring of the vertical rod 121 is provided with a floating block 123, the top of the floating block 123 is fixedly connected with a second supporting rod 124, the top of the second supporting rod 124 is fixedly connected with a receiving block 125, the inner cavity of the receiving block 125 is provided with a receiving port 126, the receiving port 126 is an oblique opening, the bottom radius of the receiving port is smaller than the top radius, the bottom radius of the receiving block of the inductor 13 is an inclined plane body, the bottom radius of the receiving block is smaller than the top radius and corresponds to the position and size of the receiving port 126, the position of the inclined plane at the bottom of the outer wall of the inductor 13 is provided with a groove 131, the inner cavity of the groove 131 is provided with an extrusion block 132, the back of the extrusion block, the lower part of the outer ring of the vertical rod 121 is provided with an activated carbon adsorption sheet 127.

Further, the distance from the socket 126 to the inductor 13 at the uppermost end of the vertical rod 121 is smaller than the distance from the limiting block 122 to the inductor 13, so that the floating block 123 does not fall off the limiting block 122 and lose the contact between the socket 126 and the inductor 13 to play a corresponding role.

In this embodiment, the adaptive control mechanism 12 is provided with a middle part of an inner cavity of the water storage tank 3, the bottom of the adaptive control mechanism is welded by a fixed steel plate, water enters the water storage tank 3 through the water inlet pipe 5, the floating block 123 rises along with the rise of the water level along with the continuous rise of the water level, as shown in fig. 3, the outer wall of the floating block 123 is provided with a fan blade, the inner cavity of the fan blade is provided with an adsorption net, the outer part of the vertical rod 121 is provided with spiral grains, the inner ring of the floating block 123 is provided with internal threads, the internal threads are meshed and sleeved with the spiral grains on the outer ring of the vertical rod 121, the floating block 123 slowly rotates and rises when the water level rises, namely the fan blade is driven to rotate, the air flow in the fluid can be driven to move, a vortex is generated, the middle part of trace dust carried in the fluid can be collected, then the activated carbon adsorption sheet 127 is used for adsorbing, carrying out secondary purification on the fluid; because the alkali-containing property in the rising water is high, a circuit can be arranged on the active carbon adsorption sheet 127, some chemical substances contained in the water can be electrolyzed after the circuit is switched on, calcium, magnesium, sodium and other ions in the water are removed through the conversion of electric anions and cations, incrustation can be effectively prevented, the softened water quality can be achieved, the quality of water supply is improved, when the floating block 123 rises to the position of the limiting block 122, the floating block 123 is blocked by the limiting block 122, the main function of the limiting block 122 is to prevent the floating block 123 from falling off from the upper part, at the moment, the bearing opening 126 is in contact with the inductor 13, wherein the bearing opening 126 is an inclined opening, the radius of the bottom of the bearing opening is smaller than that of the top, the bottom of the inductor 13 is an inclined body, the radius of the bottom of the inductor is smaller than that of the top, the position of the inclined surface of the outer wall of, the back of the extrusion block 132 is provided with a spring, the extrusion block 132 is extruded by the inclined plane of the receiving opening 126 and contracted into the inner cavity of the groove 131, then the spring is extruded, when the extrusion block 132 is completely accommodated in the groove 131, the spring can extrude a remote sensor arranged inside and trigger the remote sensor, the remote sensor in the electromagnetic valve 7 is wirelessly connected with the remote sensor in the inductor 13, the remote sensor in the inductor 13 triggers the remote sensor which can start the electromagnetic valve 7, then the electromagnetic valve 7 is closed, and the condition that the water level in the water storage tank 3 is too high and overflow occurs is avoided.

The working principle is as follows: firstly, a power supply starting device is switched on through a control cabinet 14, water enters from a water inlet pipe 5, a Y-shaped water filter 6 is fixedly sleeved in the middle of the outer ring of the water inlet pipe 5, a water passing net is arranged in the inner cavity of the Y-shaped water filter 6, the specification of the water passing net is 20-30 meshes, when liquid enters the water passing net through the water inlet pipe 5, solid impurity particles are blocked in the water passing net, and clean fluid is discharged from the outlet of the Y-shaped water filter 6 through the water passing net, so that particle impurities in a water supply source can be primarily filtered; then the water enters the water storage tank 3 and is pumped out from the first water outlet pipe 8 at the bottom; then the water passing pipe 9 flows into the branch flow pipe 10 and is discharged from each water outlet pipe, so as to provide clean and impurity-free water resources for secondary water supply; water enters the water storage tank 3 through the water inlet pipe 5, with the continuous rising of the water level, the outer wall of the floating block 123 is provided with fan blades, the inner cavity of the fan blades is provided with an adsorption net, the outer part of the vertical rod 121 is provided with spiral grains, the inner ring of the floating block 123 is provided with internal threads, the internal threads are meshed and sleeved with the spiral grains on the outer ring of the vertical rod 121, when the water level rises, the floating block 123 can slowly rotate to rise, namely the fan blades are driven to rotate, the air flow in the fluid can be driven to move, a vortex is generated, and trace dust carried in the fluid can be gathered at the middle part; then the active carbon adsorption sheets 127 are used for adsorbing the particles, and in the rotating process of the fan blades, the adsorption net in the fan blades can also be used for adsorbing trace particles in the raw water to purify the fluid for the second time; because the alkali-containing property in the rising water is higher, a circuit can be arranged on the active carbon adsorption sheet 127, some chemical substances contained in the water can be electrolyzed after the circuit is switched on, calcium ions, magnesium ions, sodium ions and the like in the water are removed through the conversion of electric anions and cations, the scale can be effectively prevented, the water quality can be softened, and the water supply quality is improved; when the floating block 123 rises to the position of the limiting block 122, the floating block is blocked by the limiting block 122, at this time, the socket 126 contacts with the inductor 13, wherein the socket 126 is an oblique opening, the minimum radius of the socket 126 is smaller than the radius of the limiting block 122, the diameter of the oblique part of the socket 126 is larger than the diameter of the limiting block 122, the bottom 125 of the inductor 13 is an inclined plane body, the radius of the bottom is smaller than the radius of the top and corresponds to the position and the size of the socket 126, a groove 131 is formed in the position of the inclined plane at the bottom of the outer wall of the inductor 13, a squeezing block 132 is arranged in the inner cavity of the groove 131, a spring is arranged on the back of the squeezing block 132, the squeezing block 132 is squeezed by the inclined plane of the socket 126 to contract into the inner cavity of the groove 131, then the spring is squeezed, when the squeezing block 132 is completely accommodated in the groove 131, the spring can squeeze the remote sensor arranged inside and, the remote sensor in the inductor 13 is triggered to start the remote sensor in the electromagnetic valve 7, and then the electromagnetic valve 7 is closed, so that the condition that the water level in the water storage tank 3 is too high and the water overflows is avoided.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a secondary water supply anti-overflow water protection equipment, includes channel-section steel base (1), its characterized in that: the back of the top of a channel steel base (1) is fixedly connected with a support (2), the support (2) is fixedly connected with a water storage tank (3), the left side of the top of the water storage tank (3) is fixedly connected with a vacuum suppressor (4), the right side of the top of the water storage tank (3) is fixedly connected with a water inlet pipe (5), the middle of the outer ring of the water inlet pipe (5) is fixedly sleeved with a Y-shaped water filter (6), the right side of the outer ring of the water inlet pipe (5) is fixedly sleeved with an electromagnetic valve (7), the middle of the bottom of the water storage tank (3) is fixedly connected with a first water outlet pipe (8), the front of the first water outlet pipe (8) is fixedly connected with a water diversion pipe (9), the front of the outer ring of the water diversion pipe (9) is fixedly connected with a branch pipe (10), the front end of the branch pipe (, the middle part of the top of the inner cavity of the water storage tank (3) is fixedly connected with an inductor (13).

2. The overflow preventing protection device for the secondary water supply as claimed in claim 1, wherein: the left side fixedly connected with switch board (14) at channel-section steel base (1) top back is provided with display screen and operating button on switch board (14).

3. The secondary water supply water flood prevention protection device according to claim 1 or 2, characterized in that: the water pumping mechanism (11) comprises a mounting plate (111), a straight-through pipe (112) is fixedly connected to the middle of the top of the mounting plate (111), a second branch pipe (113) is fixedly connected to the back of the outer ring of the straight-through pipe (112), a connector (114) is fixedly connected to the back of the outer ring of the second branch pipe (113), the back of the inner cavity of the connector (114) is connected with a water distribution pipe (9), first support rods (115) are fixedly connected to four corners of the top of the mounting plate (111), a top plate (116) is fixedly connected to the top of the first support rods (115), and a water pump (117) is fixedly connected to the.

4. The secondary water supply water flood prevention protection device according to claim 1 or 2, characterized in that: adaptive control mechanism (12) include vertical rod (121), the bottom of vertical rod (121) and the bottom fixed connection of water storage tank (3) inner wall, top fixedly connected with stopper (122) of vertical rod (121), outer lane fixedly connected with floating block (123) of vertical rod (121), the top fixedly connected with second branch (124) of floating block (123), the top fixedly connected with of second branch (124) holds piece (125), accept mouth (126) has been seted up to the inner chamber of holding piece (125), accept mouth (126) is the oblique opening, its bottom radius is less than the top radius, the lower part of vertical rod (121) outer lane is provided with active carbon adsorption piece (127).

5. A secondary water supply water flood prevention protection device according to claim 3, wherein: adaptive control mechanism (12) include vertical rod (121), top fixedly connected with stopper (122) of vertical rod (121), outer lane fixedly connected with floating block (123) of vertical rod (121), top fixedly connected with second branch (124) of floating block (123), the top fixedly connected with of second branch (124) holds piece (125), socket (126) have been seted up to the inner chamber of holding piece (125), socket (126) are the oblique opening, its bottom radius is less than the top radius, the lower part of vertical rod (121) outer lane is provided with active carbon adsorption piece (127).

6. An overflow preventing and protecting apparatus for a secondary water supply according to claim 1, 2 or 5, wherein: the bottom of inductor (13) holds the piece and is the sloping body, and its bottom radius is less than the top radius, and corresponds with bellmouth (126) position and size, and inductor (13) outer wall bottom inclined plane's position is seted up flutedly (131), and the inner chamber of flutedly (131) is provided with extrusion piece (132), and the back of extrusion piece (132) is provided with the spring.

7. A secondary water supply water flood prevention protection device according to claim 3, wherein: the bottom of inductor (13) holds the piece and is the sloping body, and its bottom radius is less than the top radius, and corresponds with bellmouth (126) position and size, and inductor (13) outer wall bottom inclined plane's position is seted up flutedly (131), and the inner chamber of flutedly (131) is provided with extrusion piece (132), and the back of extrusion piece (132) is provided with the spring.

8. The secondary water supply water flood prevention protection device according to claim 4, wherein: the bottom of inductor (13) holds the piece and is the sloping body, and its bottom radius is less than the top radius, and corresponds with bellmouth (126) position and size, and inductor (13) outer wall bottom inclined plane's position is seted up flutedly (131), and the inner chamber of flutedly (131) is provided with extrusion piece (132), and the back of extrusion piece (132) is provided with the spring.

9. A secondary water supply water flood prevention protection apparatus according to claim 1, 2, 5, 7 or 8, wherein: the minimum radius of the socket (126) is smaller than that of the limiting block (122), and the diameter of the inclined part of the socket (126) is larger than that of the limiting block (122).