CN210432233U

CN210432233U - Automatically controlled cabinet of hydraulic turbine with overspeed monitoring function

Info

Publication number: CN210432233U
Application number: CN201921198796.0U
Authority: CN
Inventors: 马金璐
Original assignee: Tianjin Tianfa Tianzhong Power Equipment Manufacturing Co Ltd
Current assignee: Tianjin Tianfa Tianzhong Power Equipment Manufacturing Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-28
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a hydraulic turbine electric cabinet with overspeed monitoring function, including the base and the cabinet body, be fixed with jointly on the internal a week lateral wall of cabinet and bear the frame, the upper end that bears the frame is fixed with servo motor and containing box, servo motor's output shaft runs through one side of containing box and extends to in the containing box, servo motor's output shaft end is fixed with the impeller. The utility model discloses an effect that carries out drying process to the air that gets into automatically controlled cabinet has promoted the humidity resistance of device, can arrange in order the wire that gets into in the automatically controlled cabinet, uses more pleasing to the eye, safety, still can effectively cushion the vibrational force that the transmission when the hydraulic turbine functions comes, adjusts the installation that is applicable to the electrical components of equidimension not through the position to the mounting panel, has promoted the suitability and the shock resistance performance of device, excellent in use effect.

Description

Automatically controlled cabinet of hydraulic turbine with overspeed monitoring function

Technical Field

The utility model relates to an automatically controlled cabinet technical field of the hydraulic turbine especially relates to an automatically controlled cabinet of the hydraulic turbine with overspeed monitoring function.

Background

The hydraulic turbine is a power machine which converts the energy of water flow into rotary mechanical energy, belongs to the turbine machinery in fluid machinery, most of the hydraulic turbines are installed in a hydropower station and are used for driving a generator to generate electricity, the hydraulic turbine is provided with an electric control cabinet, a circuit can be switched on or switched off by a manual or automatic switch during normal operation, the circuit is switched off or an alarm is given by a protective electric appliance during fault or abnormal operation, the electric control cabinet of the hydraulic turbine has the overspeed monitoring function and is connected with a guide vane of a speed regulator through an opening displacement sensor, the actual opening value of the guide vane of the speed regulator is sensed and measured and sent to a PLC speed regulation control system, the PLC speed regulation control system compares the acquired actual opening value of the guide vane of the speed regulator with the set value of an opening signal, when the comparison result meets the preset overspeed alarm condition, the PLC speed regulation control system sends, the water turbine unit can be controlled in real time to prevent the water turbine unit from being out of control due to overspeed, timely judgment is made, safety protection is carried out, the occurrence of overspeed of the water turbine unit is effectively restrained in time, the accident is prevented from being enlarged, and the use is safe.

In the prior art, a lot of reports are reported for packaging boxes, and patent number CN203450501U discloses an electric control cabinet, which automatically controls a driving motor to start through a temperature sensor, so as to ensure that the inside of the electric control cabinet is always at a proper temperature, accelerate the fluidity of air in the cabinet body, further lower the temperature in the cabinet body, and further have a dustproof effect.

The invention of patent number CN206685718U discloses an electric control cabinet, which is provided with an insect-proof component, can effectively prevent insects and rats from entering the cabinet body through the wire inlet or the wire outlet, avoids the occurrence of damage to the wiring structure in the cabinet body and the occurrence of damage to the wires and the like, further ensuring the safety of the electric control cabinet in long-term use, but researches show that the invention can only achieve the effect of preventing insects and rats and does not have good damping performance, because the water turbine is a power machine for converting the energy of water flow into rotary mechanical energy, when in operation, the water turbine impeller rotates to generate certain vibration force, and the vibration force is used as an electric control cabinet for controlling the water turbine, and part of the vibration force is transferred to the electric control cabinet under the influence of the operation of the water turbine, so that the electric control cabinet generates certain loss under the action of the vibration force, and this automatically controlled cabinet can't adjust to the electrical components of equidimension not, has the poor problem of suitability.

In conclusion, how to avoid causing certain influence to the electric components inside the electric control cabinet due to humidity and how to avoid the electric control cabinet to walk the line difficultly, prevent to lead to unsightly and possess certain potential safety hazard because of the wire confusion, how to reduce the influence of vibrational force to the electric control cabinet and the problem that the suitability is poor because of unable regulation, therefore, we provide an electric control cabinet of a water turbine with overspeed monitoring function to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the automatically controlled cabinet of hydraulic turbine with overspeed monitoring function that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water turbine electric control cabinet with an overspeed monitoring function comprises a base and a cabinet body, wherein a bearing frame is fixed on a circle of side walls in the cabinet body, a servo motor and a containing box are fixed at the upper end of the bearing frame, an output shaft of the servo motor penetrates through one side of the containing box and extends into the containing box, an impeller is fixed at the tail end of the output shaft of the servo motor, the upper end of the containing box penetrates through the top in the cabinet body, the upper end and one side of the containing box are arranged in a penetrating manner, a protective net is fixed on the circle of side walls at the upper end in the containing box, a fixing pipe penetrates through and is fixed on one side of the cabinet body, a dehumidifying device is arranged at one end of the fixing pipe, an installation device is arranged in the cabinet body, a mounting groove is arranged at the upper end of the base, four fixing blocks are fixed at the bottom in the mounting groove, and fixing rods, and the four fixing rods are provided with buffer devices together.

Preferably, buffer establishes two first sleeves and second spring, eight on four dead levers including establishing respectively the cover the one end of second spring is fixed respectively in eight first telescopic one end, and wherein the other end of four second springs is fixed respectively in one side of four fixed blocks, and the other end of four other second springs is fixed respectively on the both ends lateral wall in the mounting groove, eight first telescopic upper end is all rotated and is connected with the connecting rod, rotates jointly with four connecting rods of one side and is connected with the second connecting block, two the upper end of second connecting block all is fixed with two lifter.

Preferably, dehydrating unit is including fixing the fixed box in fixed pipe one end, one side of fixed box is connected with the intake pipe, the both sides of fixed box all are equipped with a plurality of second ventholes, and wherein a plurality of second ventholes and the intake pipe of one side are corresponding, and a plurality of second ventholes and the fixed pipe of opposite side are corresponding, placed in the fixed box and placed the box, it has the drier to place the box splendid attire, the both sides of placing the box all are equipped with a plurality of first ventholes, upper end one side of fixed box articulates there is the closing cap.

Preferably, the installation device is including fixing the installation pole on the internal both ends lateral wall of cabinet respectively, two the impartial interval in one side of installation pole is equipped with the screw thread blind hole more than two, the internal four mounting panels that are equipped with of cabinet, four the both sides of mounting panel all are fixed with first connecting block, eight all run through on the first connecting block and are equipped with two screws, the one end screw thread of screw cup joints in the screw thread blind hole that corresponds.

Preferably, a fixed plate is jointly fixed to a circumferential side wall in the mounting groove, two grooves are formed in the upper end of the fixed plate, two openings are formed in the bottoms of the two grooves, moving blocks are installed in the four openings, bearing blocks are jointly fixed to the upper ends of the two moving blocks on the same side, the upper ends of the two bearing blocks are fixedly arranged at the lower end of the cabinet body, a second sleeve is fixedly arranged at the lower ends of the four moving blocks, limiting blocks are installed in the four second sleeves, the upper ends of the four lifting rods extend into the four second sleeves respectively and are fixedly arranged at the lower ends of the four limiting blocks respectively, first springs are sleeved on the second sleeves and the lifting rods on the same side, the upper ends of the four first springs are fixedly arranged at the lower ends of the four moving blocks respectively, and the lower ends of the four first springs are fixedly arranged at the upper ends.

Preferably, one side of the upper end of the cabinet body is provided with a plurality of second fixing cylinders in a penetrating manner, the second fixing cylinders are provided with wires in a penetrating manner, one side of the upper end of the bearing frame is provided with a first fixing cylinder in a penetrating manner, the first fixing cylinder is provided with a plurality of wires, one end of each wire is provided with a water turbine in a penetrating manner, and the other end of each wire is connected with the water turbine.

Preferably, the both sides of base all are fixed with the limiting plate, the both sides of the cabinet body all are fixed with four gag lever posts, and the limiting plate is run through respectively and extend to one side of limiting plate to the one end of four gag lever posts with one side.

Preferably, a filter screen is jointly fixed on the side wall of the circumference in the air inlet pipe.

Preferably, the drying agent adopts allochroic silica gel.

Preferably, the partition plates are fixed on the opposite side walls in the placing box together.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the matching of the servo motor, the impeller, the placing box, the drying agent and other components, the air entering the cabinet body is convenient to dry, the problem that internal electrical components are easily affected with damp and damaged due to the fact that the working environment of the water turbine is wet is solved, the moisture resistance of the device is improved, and the internal electrical components are effectively protected;

2. through the matching of the base, the first spring, the second spring, the bearing block and other components, the vibration force transmitted when the water turbine operates can be effectively buffered, the problem that the electric control cabinet generates certain loss under the action of the vibration force because part of the vibration force is transmitted to the electric control cabinet when the water turbine operates is solved, the anti-seismic performance of the device is improved, the loss of the device is reduced, and the service life of the device is prolonged;

3. through the matching of the cabinet body, the first fixing cylinder, the second fixing cylinder and other parts, the arrangement of the wires entering the cabinet body is facilitated, the problems that the wires in the existing electric control cabinet are disordered and not attractive in use and have certain potential safety hazards are solved, and the interior of the electric control cabinet is more attractive and safer in use;

4. the positions of the mounting plates are convenient to adjust through the matching of the mounting rods, the first connecting blocks, the mounting plates and other components, so that the electric control cabinet is suitable for mounting electric elements with different sizes, the problems that the existing electric control cabinet is difficult to adjust aiming at the electric elements with different sizes and poor in applicability are solved, the applicability of the electric control cabinet is improved, and the electric control cabinet is more flexible to use;

to sum up, the utility model discloses an effect that carries out drying process to the air that gets into automatically controlled cabinet has promoted the humidity resistance of device, can arrange the wire that gets into in the automatically controlled cabinet in order, uses more pleasing to the eye, safety, still can effectively cushion the vibrational force that the transmission when the hydraulic turbine functions comes, adjusts the installation that is applicable to the electrical components of equidimension not through the position to the mounting panel, has promoted the suitability and the shock resistance performance of device, excellent in use effect.

Drawings

Fig. 1 is an external structural schematic view of a water turbine electric control cabinet with an overspeed monitoring function provided by the utility model;

fig. 2 is a schematic view of an internal structure of a cabinet body of a water turbine electric control cabinet with an overspeed monitoring function provided by the utility model;

fig. 3 is a schematic view of an internal structure of a first sleeve of a water turbine electric control cabinet with an overspeed monitoring function provided by the present invention;

fig. 4 is an external structural schematic view of a fixing plate of a water turbine electric control cabinet with an overspeed monitoring function provided by the utility model;

fig. 5 is an enlarged view of a structure at a position a of the electric control cabinet of the water turbine with the overspeed monitoring function provided by the utility model;

fig. 6 is an enlarged view of a structure at a position B of the electric control cabinet of the water turbine with the overspeed monitoring function provided by the utility model;

in the figure: the device comprises a base 1, a first spring 2, a bearing block 3, a cabinet 4, a limiting rod 5, a limiting plate 6, a first connecting block 7, a bearing frame 8, a first fixing barrel 9, a second fixing barrel 10, an impeller 11, a servo motor 12, a mounting plate 13, a mounting rod 14, a moving block 15, a connecting rod 16, a second spring 17, a first sleeve 18, a fixing block 19, a fixing plate 20, a sealing cover 21, a second sleeve 22, a lifting rod 23, a limiting block 24, a second connecting block 25, a fixing rod 26, an opening 27, a box for placing 28, a fixing box 29, an air inlet pipe 30, a water turbine 31, a first vent hole 32, a partition plate 33, a drying agent 34 and a second vent hole 35.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1, 2, 3, 4, 5, 6, an automatically controlled cabinet of hydraulic turbine with overspeed monitoring function, including base 1 and the cabinet body 4, be fixed with jointly on the one week lateral wall of the internal 4 cabinet and bear frame 8, the upper end that bears frame 8 is fixed with servo motor 12 and containing box, servo motor 12's output shaft runs through one side of containing box and extends to in the containing box, servo motor 12's output shaft end is fixed with impeller 11, the output shaft that conveniently passes through servo motor 12 drives impeller 11 and rotates, thereby with the air escape in the cabinet body 4, make the internal negative pressure that produces of cabinet.

The utility model discloses in, the top in the cabinet body 4 is run through to the upper end of containing box, and the upper end and one side of containing box all link up the setting, and the impeller 11 of being convenient for is discharged the air, is fixed with the protection network jointly on a week lateral wall of upper end in the containing box, can prevent that debris from getting into, and one side of the cabinet body 4 is run through and is fixed with fixed pipe, and the one end of fixed pipe is equipped with dehydrating unit, is convenient for carry out drying process to the air that gets into in the cabinet body 4, avoids the internal electrical components of cabinet body 4 to wet the damage.

The utility model discloses in, be equipped with installation device in the cabinet body 4, be convenient for adjust the installation that is applicable to the electrical components of equidimension not to the position of mounting panel 13, the suitability is strong, base 1's upper end is equipped with the mounting groove, bottom in the mounting groove is fixed with four fixed blocks 19, one side of four fixed blocks 19 is fixed with dead lever 26 with the both ends lateral wall in the mounting groove jointly respectively, be equipped with buffer on four dead levers 26 jointly, can cushion the vibrational force that the transmission when the hydraulic turbine 31 functions comes, the consume of device has been reduced, the service life of device has been prolonged.

The utility model discloses in, buffer establishes two first sleeves 18 and second spring 17 on four dead levers 26 including establishing respectively, extrudees second spring 17 through first sleeve 18, under second spring 17's spring action, cushions the vibrational force that the transmission when hydraulic turbine 31 functions.

The utility model discloses in, the one end at eight first sleeves 18 is fixed respectively to eight second spring 17's one end, and wherein four second spring 17's the other end is fixed respectively in one side of four fixed blocks 19, and the other end of four second springs 17 is fixed respectively on the both ends lateral wall in the mounting groove, the stable installation of the second spring 17 of being convenient for.

The utility model discloses in, eight first sleeves 18's upper end is all rotated and is connected with connecting rod 16, rotates jointly with four connecting rods 16 of one side and is connected with second connecting block 25, and two second connecting block 25's upper end all is fixed with two lifter 23, is convenient for extrude second connecting block 25 through lifter 23 to second connecting block 25 passes through connecting rod 16 and drives first sleeve 18 and remove, and first sleeve 18 extrudes second spring 17.

The utility model discloses in, dehydrating unit is connected with intake pipe 30 including fixing the fixed box 29 in fixed pipe one end, one side of fixed box 29, the entering of the air of being convenient for, and the both sides of fixed box 29 all are equipped with a plurality of second ventholes 35, and wherein a plurality of second ventholes 35 and the intake pipe 30 of one side are corresponding, and a plurality of second ventholes 35 of opposite side are corresponding with fixed pipe, the entering of the air of being convenient for.

The utility model discloses in, place and place box 28 in the fixed box 29, place and to have drier 34 in the box 28, drier 34 can be with the moisture absorption in the air, with air drying processing, the both sides of placing box 28 all are equipped with a plurality of first air vents 32, and upper end one side of fixed box 29 articulates there is closing cap 21, makes things convenient for fixed box 29 sealed, still is convenient for change drier 34.

The utility model discloses in, installation device is including fixing the installation pole 14 on the lateral wall of the internal both ends of cabinet 4 respectively, and the impartial interval in one side of two installation poles 14 is equipped with the screw thread blind hole more than two, the installation of the mounting panel 13 of being convenient for, and the internal four mounting panels 13 that are equipped with of cabinet 4, the mounting panel 13 is convenient for install electrical components.

The utility model discloses in, four mounting panel 13's both sides all are fixed with first connecting block 7, all run through on eight first connecting blocks 7 and are equipped with two screws, and the one end screw thread of screw cup joints in the screw blind hole that corresponds, through the cooperation of screw and screw blind hole, is convenient for adjust the installation that is applicable to the electrical components of equidimension not to mounting panel 13's position, and the suitability is strong.

The utility model discloses in, a week lateral wall in the mounting groove is fixed with fixed plate 20 jointly, and the upper end of fixed plate 20 is equipped with two recesses, and the bottom in two recesses all is equipped with two openings 27, all installs movable block 15 in four openings 27, and opening 27 is convenient for the removal of movable block 15, is fixed with carrier block 3 jointly with the upper end of two movable blocks 15 of one side, and the lower extreme at the cabinet body 4 is all fixed to the upper end of two carrier blocks 3, can be with cabinet body 4 stabilizing support.

The utility model discloses in, the lower extreme of four movable blocks 15 all is fixed with second sleeve 22, all installs stopper 24 in four second sleeves 22, and the upper end of four lifter 23 extends to respectively in four second sleeves 22 and fixes respectively at the lower extreme of four stopper 24, and the lifter 23 of being convenient for is flexible in second sleeve 22.

The utility model discloses in, the common cover of second sleeve 22 and lifter 23 with one side is equipped with first spring 2, and when lifter 23 is flexible in second sleeve 22, the lower extreme at four movable blocks 15 is fixed respectively to the upper end of four first springs 2, and the upper end at second connecting block 25 is fixed respectively to the lower extreme of four first springs 2, can cushion partial vibrational force through the flexible of first spring 2.

Example 2

In the utility model, one side of the upper end of the cabinet body 4 is provided with a plurality of second fixed cylinders 10, a plurality of wires are arranged in the second fixed cylinders 10, one side of the upper end of the bearing frame 8 is provided with a first fixed cylinder 9, one end of the plurality of wires is arranged in the first fixed cylinder 9, the other end of the plurality of wires is connected with a water turbine 31, both sides of the base 1 are fixed with the limiting plates 6, both sides of the cabinet body 4 are fixed with four limiting rods 5, one end of each of the four limiting rods 5 on the same side is respectively arranged through the limiting plate 6 and extends to one side of the limiting plate 6, compared with the embodiment 1, this embodiment can arrange the wire that gets into in the automatically controlled cabinet through first fixed section of thick bamboo 9 and the fixed section of thick bamboo 10 of second, uses more pleasing to the eye, has solved because of the wire confusion has the problem of potential safety hazard, has still promoted the stability of the cabinet body 4 through gag lever post 5, excellent in use effect.

Example 3

The utility model discloses in, be fixed with the filter screen jointly on the a week lateral wall in the intake pipe 30, drier 34 adopts allochroic silica gel, it has baffle 33 to place to be fixed jointly on the relative lateral wall in the box 28, compare with embodiment 2, this embodiment can effectually filter the dust in the air through the filter screen, the cleanness in the cabinet body 4 has been guaranteed, excellent in use effect, allochroic silica gel has stronger adsorptivity, moisture-proof effect is good, can judge its relative humidity through the change of allochroic silica gel colour, whether convenient judgement needs to change drier 34, still can come used repeatedly through drying, can extend long time when air and drier 34 contact through baffle 33, moisture-proof effect is good.

In the utility model, when in use, the wires entering the electric control cabinet can be arranged through the first fixed cylinder 9 and the second fixed cylinder 10, the use is more beautiful, the position of the mounting plate 13 can be conveniently adjusted through the matching of the first connecting block 7, the mounting rod 14, the screw and the threaded blind hole, so as to be suitable for the installation of electric elements with different sizes, the applicability is strong, when the output shaft of the servo motor 12 drives the impeller 11 to rotate, the air in the cabinet body 4 is discharged under the rotation action of the impeller 11, the negative pressure is generated in the cabinet body 4, thereby the air outside the cabinet body 4 enters through the air inlet pipe 30, when the air flows through the drying agent 34, the drying agent 34 absorbs the moisture contained in the air, the air is dried, the electric elements in the cabinet body 4 are prevented from being affected with damp and damaged, when the vibration force generated when the hydraulic turbine 31 operates is transmitted to the base 1 and the cabinet body 4, the cabinet body 4 is driven by the two bearing blocks 3 to slightly move at the upper, thereby fixed plate 20 drives second sleeve 22 through four movable blocks 15 and removes, and then second sleeve 22 drives second connecting block 25 through lifter 23 and removes, and then second connecting block 25 drives first sleeve 18 through connecting rod 16 and removes, and first sleeve 18 extrudes second spring 17, under the spring action of second spring 17, the vibrational force that the transmission when operating hydraulic turbine 31 comes cushions, has reduced the consume of device, has prolonged the life of device.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatically controlled cabinet of hydraulic turbine with overspeed monitoring function, includes base (1) and the cabinet body (4), its characterized in that: the utility model discloses a cabinet, including cabinet body (4), a week lateral wall in the cabinet body (4) is fixed with jointly and bears frame (8), the upper end that bears frame (8) is fixed with servo motor (12) and containing box, the output shaft of servo motor (12) runs through one side of containing box and extends to in the containing box, the output shaft end of servo motor (12) is fixed with impeller (11), the top in the cabinet body (4) is run through to the upper end of containing box, the upper end and one side of containing box all link up the setting, be fixed with the protection network jointly on a week lateral wall of upper end in the containing box, one side of the cabinet body (4) is run through and is fixed with fixed pipe, the one end of fixed pipe is equipped with dehydrating unit, be equipped with installation device in the cabinet body (4), the upper end of base (1) is equipped with the mounting groove, bottom in the mounting groove is fixed with four fixed blocks (19), four one side of fixed block (19) respectively with the And buffering devices are arranged on the four fixing rods (26) together.

2. The water turbine electric control cabinet with an overspeed monitoring function as claimed in claim 1, wherein: buffer establishes two first sleeves (18) and second spring (17) on four dead levers (26), eight including establishing respectively the one end at eight first sleeves (18) is fixed respectively to the one end of second spring (17), and wherein the other end of four second springs (17) is fixed respectively in one side of four fixed blocks (19), and the other end of four second springs (17) is fixed respectively on the both ends lateral wall in the mounting groove, eight the upper end of first sleeve (18) all rotates and is connected with connecting rod (16), and four connecting rod (16) with one side rotate jointly and are connected with second connecting block (25), two the upper end of second connecting block (25) all is fixed with two lifter (23).

3. The water turbine electric control cabinet with an overspeed monitoring function as claimed in claim 1, wherein: the dehumidifying device is including fixing fixed box (29) in fixed pipe one end, one side of fixed box (29) is connected with intake pipe (30), the both sides of fixed box (29) all are equipped with a plurality of second ventholes (35), and wherein a plurality of second ventholes (35) and intake pipe (30) of one side are corresponding, and a plurality of second ventholes (35) and the fixed pipe of opposite side are corresponding, place box (28) in fixed box (29), place and have placed drier (34) in box (28), the both sides of placing box (28) all are equipped with a plurality of first ventholes (32), the upper end one side of fixed box (29) articulates there is closing cap (21).

4. The water turbine electric control cabinet with an overspeed monitoring function as claimed in claim 1, wherein: the mounting device is including fixing installation pole (14), two on the lateral wall of the both ends in the cabinet body (4) respectively the impartial interval in one side of installation pole (14) is equipped with the screw thread blind hole more than two, be equipped with four mounting panel (13) in the cabinet body (4), four the both sides of mounting panel (13) all are fixed with first connecting block (7), eight all run through on first connecting block (7) and are equipped with two screws, the one end screw thread of screw cup joints in the screw thread blind hole that corresponds.

5. The water turbine electric control cabinet with an overspeed monitoring function as claimed in claim 2, wherein: a fixed plate (20) is jointly fixed on the side wall of one circle in the mounting groove, two grooves are formed in the upper end of the fixed plate (20), two openings (27) are formed in the bottoms of the two grooves, moving blocks (15) are installed in the four openings (27), bearing blocks (3) are jointly fixed on the upper ends of the two moving blocks (15) on the same side, the upper ends of the two bearing blocks (3) are fixed at the lower end of the cabinet body (4), second sleeves (22) are fixed at the lower ends of the four moving blocks (15), limiting blocks (24) are installed in the four second sleeves (22), the upper ends of the four lifting rods (23) respectively extend into the four second sleeves (22) and are respectively fixed at the lower ends of the four limiting blocks (24), and a first spring (2) is sleeved on the second sleeve (22) and the lifting rod (23) on the same side, the upper ends of the four first springs (2) are respectively fixed at the lower ends of the four moving blocks (15), and the lower ends of the four first springs (2) are respectively fixed at the upper end of the second connecting block (25).

6. The water turbine electric control cabinet with an overspeed monitoring function as claimed in claim 1, wherein: the upper end one side of the cabinet body (4) runs through and is equipped with a plurality of second solid fixed cylinder (10), and is a plurality of all run through in the second solid fixed cylinder (10) and be equipped with the wire, bear upper end one side of frame (8) and run through and be equipped with first solid fixed cylinder (9), and is a plurality of in the one end of wire all runs through first solid fixed cylinder (9), it is a plurality of the other end of wire is connected with hydraulic turbine (31) jointly.

7. The water turbine electric control cabinet with an overspeed monitoring function as claimed in claim 1, wherein: the both sides of base (1) all are fixed with limiting plate (6), the both sides of the cabinet body (4) all are fixed with four gag lever post (5), and limiting plate (6) are run through respectively and extend to one side of limiting plate (6) to the one end of four gag lever post (5) with one side.

8. The electric control cabinet of the water turbine with the overspeed monitoring function as claimed in claim 3, wherein: and a filter screen is jointly fixed on the side wall of the circumference in the air inlet pipe (30).

9. The electric control cabinet of the water turbine with the overspeed monitoring function as claimed in claim 3, wherein: the drying agent (34) adopts allochroic silica gel.

10. The electric control cabinet of the water turbine with the overspeed monitoring function as claimed in claim 3, wherein: the opposite side walls in the placing box (28) are jointly fixed with a partition plate (33).