CN110994864B - Protection device for motor underwater work - Google Patents
Protection device for motor underwater work Download PDFInfo
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- CN110994864B CN110994864B CN201911201630.4A CN201911201630A CN110994864B CN 110994864 B CN110994864 B CN 110994864B CN 201911201630 A CN201911201630 A CN 201911201630A CN 110994864 B CN110994864 B CN 110994864B
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- motor
- water
- ring
- protective housing
- floating plate
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a protection device for underwater work of a motor, relates to the field of motor protection, and aims to solve the problem of poor waterproof effect of the traditional motor in underwater work, and the technical scheme is as follows: including fixing the protective housing at the river bottom, still including setting up the support in the protective housing bottom, connecting in the motor of support, set up in the protective housing bottom and prevent the waterproof mechanism of motor flooding, set up in the protective housing bottom and be used for with infiltration water exhaust drainage mechanism, connect in the protective housing top and communicate the heat dissipation mechanism of surface of water top. The protection device for underwater work of the motor has the advantages of being good in protection effect and reducing the water inlet probability of the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a protection device for underwater work of a motor.
Background
The motor is one of the most commonly used power sources, and plays a great role in production and life. Under some special conditions, the motor must be placed in water to operate, the self waterproof performance of the existing motor can not meet the requirement, so that the waterproof effect must be achieved by means of some external tools, but under the condition, the motor is usually sealed under the water, the heat dissipation performance of the motor is very poor, the normal operation of the motor is influenced, and even potential safety hazards can be brought.
Chinese patent publication No. CN105958709A discloses an electric shock shield, which comprises a shield for placing a motor, at least two ventilation pipes are arranged on the top surface of the shield, a ventilation cover is arranged at the outlet of the ventilation pipes, a plurality of ventilation holes are arranged on the ventilation cover, and a rotating shaft of the motor extends out from the side surface of the shield.
The above prior art solutions have the following drawbacks: although the ventilation and heat dissipation in the protective cover are ensured, the side wall of the protective cover still has an opening gap, when the external water pressure is large, a small amount of external water still extrudes into the protective cover from the gap, and when excessive water is accumulated in the protective cover, the motor is damaged.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a protection device for underwater work of a motor, which has the advantage of protecting the motor.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a protector of motor underwater work, is including fixing the protective housing at the bottom of a river, still including setting up the support in the protective housing bottom, connect in the motor of support, set up in the protective housing bottom and prevent the waterproof mechanism of motor flooding, set up in the protective housing bottom and be used for the drainage mechanism with infiltration water drainage, connect in the protective housing top and communicate the heat dissipation mechanism of surface of water top.
Through adopting above-mentioned technical scheme, the protective housing that will be equipped with the motor is put under water, when leading to the protective housing seepage because other factors, waterproofing mechanism at first contacts water and upwards lifting, when waterproofing mechanism rises the take the altitude, drainage mechanism starts and carries out the drainage in to the protective housing, if too big drainage mechanism of inflow comes not too much with the water discharge, can guarantee under waterproofing mechanism's protection that the motor does not fall by the water logging, thereby play the effect of protection motor, because the motor can produce a large amount of heats of working under the relative confined environment under water, dispel the heat to the motor in the protective housing through setting up heat dissipation mechanism, guarantee the ventilation cooling in the protective housing.
The invention is further configured to: waterproof mechanism includes sealing connection in the solid fixed ring of support lateral wall, connects in solid fixed ring outer wall and the outside bracing piece that extends, it is annular floating plate to have set up on the bracing piece, be connected with flexible tarpaulin between floating plate and the solid fixed ring, annular mounting groove has been seted up to the floating plate upper surface, be provided with in the mounting groove and be used for the cladding mechanism to motor cladding.
Through adopting above-mentioned technical scheme, when the guard box was intake, the floating plate received ascending buoyancy and upwards floated along with the liquid level in the guard box, along with the floating plate rebound, can upwards draw the tarpaulin to make the tarpaulin from bottom to top play certain guard action around to the motor, cladding mechanism carries out the cladding gradually to the motor from upper portion simultaneously, leads to the motor directly to contact with water when avoiding the water yield too big.
The invention is further configured to: cladding mechanism is including setting up the pivot in the mounting groove, the pivot is followed the diametric (al) setting of floating ring perpendicular to motor shaft, still including being that the semicircle ring sets up and both ends pass through torsional spring rotation and connect in the traction ring of pivot, the traction ring has the trend towards motor front end pivoted all the time, traction ring cup joints and coats the cloth, the other end fixed connection of coating cloth is close to in one side of motor afterbody in the mounting groove, the connection of after section of motor has and is used for controlling traction ring pivoted control assembly, the one end that the floating ring is close to the motor output shaft is provided with seal assembly.
Through adopting above-mentioned technical scheme, touch control assembly when the floating plate rises to when the floating plate rises, control assembly control traction ring rotates towards the output shaft direction of motor, thereby makes the cladding cloth cover the motor from the upper end, and liquid level descends when the protective housing, and floating plate descends and drive control assembly, drives the tail end rotation of traction ring towards the motor, thereby opens the cladding cloth from the motor upper end, does benefit to the heat dissipation of motor.
The invention is further configured to: the control assembly comprises a control wire connected to the tail of the motor and a pull ring connected to the floating plate and close to the tail of the motor, and the control wire bypasses the pull ring and is bent upwards to be connected to the center of the traction ring.
Through adopting above-mentioned technical scheme, when the floating plate upwards lifts up, the tip through traction ring pulling control line rotates towards the output shaft direction of motor under the effect of torsional spring to carry out the cladding with the motor from the top through the cladding cloth, when the decline of water level drove the floating plate and descend, through pull ring pulling control line shrink downwards, thereby the pulling traction ring rotates to the cladding cloth towards the motor tail end and opens, realizes the effect of linkage, improves the heat dissipation of motor.
The invention is further configured to: the sealing assembly comprises an embedded groove which is arranged at one end, close to the motor output shaft, of the floating plate and is semicircular, the opening of the embedded groove faces upwards, a catching groove corresponding to the embedded groove is formed in the middle of the traction ring, the catching groove and the embedded groove are spliced to form a circular through hole through which the circular power supply motor output shaft extends, and rubber pads are arranged on the inner wall surfaces of the catching groove and the embedded groove.
Through adopting above-mentioned technical scheme, when the traction ring rotated towards motor output shaft direction like this, through the through-hole that catching groove and caulking groove formed for the output shaft of motor stretches out by the through-hole, thereby guarantees the closure of cladding cloth.
The invention is further configured to: the motor shell is connected with a sleeve, one end of the sleeve is connected to the motor shell, the other end of the sleeve is connected to the inner wall of the protective box in a sealing mode, and an output shaft of the motor penetrates through the sleeve and extends out of the protective box.
Through adopting above-mentioned technical scheme, when the traction ring rotates to motor output shaft one end like this, caulking groove inner wall and catching groove inner wall butt in sleeve outer wall to guarantee sealedly through the rubber pad, and separate with motor output shaft, avoid high-speed pivoted motor output shaft to touch floating plate and traction ring.
The invention is further configured to: drainage mechanism is including setting up in the suction pump of protective housing bottom, setting up in motor afterbody and its sense terminal proximity switch down, and the proximity switch electricity is connected with the controller, and the controller electricity is connected in the suction pump and is controlled opening and close of suction pump, the protective housing lateral wall is connected with the cable pipe that is used for supplying the cable to pass.
Through adopting above-mentioned technical scheme, when intaking in the protective housing and the water level surpassed half of support height, the floating plate rose, and proximity switch detects the floating plate and rises to send detected signal to the controller, the controller is handled the signal and is sent execution signal to the suction pump, and the control suction pump is outwards taken water, thereby outwards discharges the water in the protective housing.
The invention is further configured to: the heat dissipation mechanism is including connecting in the air-supply line at protection box top, the air-supply line upwards stretches out the surface of water and is connected with the air-blower, the protection box lateral wall is connected with out the tuber pipe, it upwards stretches out the surface of water to go out the tuber pipe.
Through adopting above-mentioned technical scheme, when the motor during operation, the air-blower is to the interior ancient wind of protective housing, and the air that lets in flows through going out the tuber pipe, takes out the high temperature gas in the protective housing, realizes the heat dissipation to the motor.
The invention is further configured to: the top surface of the protection box is fixedly connected with a water retaining cover, and the water retaining cover is located above the motor and is arranged in a convex arc surface.
Through adopting above-mentioned technical scheme, when the protective housing top leaked, the upper surface that the water that leaks at first fell the manger plate cover, and because the manger plate cover upper surface upwards sets up to the protrusion to make rivers along manger plate cover upper surface to dispersion all around, avoid directly falling on the motor, cause the damage to the motor.
In conclusion, the beneficial technical effects of the invention are as follows:
the protection box provided with the motor is placed under water, when the protection box leaks due to other factors, the waterproof mechanism firstly contacts water and lifts upwards, when the waterproof mechanism rises to a certain height, the drainage mechanism is started and drains water in the protection box, if the water inflow is too large, the drainage mechanism does not discharge the water in time, the motor can be prevented from being submerged under the protection of the waterproof mechanism, so that the motor is protected, a large amount of heat can be generated due to the fact that the motor works in a relatively closed environment under water, and the motor in the protection box is cooled by arranging the cooling mechanism, so that ventilation and cooling in the protection box are guaranteed;
when the floating plate is lifted upwards, the end part of the control line is pulled by the traction ring to rotate towards the direction of the output shaft of the motor under the action of the torsion spring, so that the motor is coated from the upper part through the coating cloth, when the floating plate is driven to descend by the descending of the water level, the control line is pulled by the pull ring to contract downwards, so that the traction ring is pulled to rotate towards the tail end of the motor to the opening of the coating cloth, the linkage effect is realized, and the heat dissipation of the motor is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view in a front cross section of the present invention.
Fig. 3 is a side sectional structural schematic view of the present invention.
In the figure, 1, a protective box; 2. a support; 3. a motor; 4. a waterproof mechanism; 5. a drainage mechanism; 6. a heat dissipation mechanism; 7. a fixing ring; 8. a support bar; 9. a floating plate; 10. waterproof cloth; 11. mounting grooves; 12. a coating mechanism; 13. a rotating shaft; 14. a traction ring; 15. coating cloth; 16. a control component; 17. a seal assembly; 18. a control line; 19. a pull ring; 20. caulking grooves; 21. buckling grooves; 22. a sleeve; 23. a water pump; 24. a proximity switch; 25. a cable tube; 26. an air inlet pipe; 27. a blower; 28. an air outlet pipe; 29. a water retaining cover; 30. a guide bar; 31. a guide ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the underwater motor protection device disclosed by the invention comprises a protection box 1 fixed at the bottom of a river, wherein the protection box 1 is arranged in a closed box body, a support 2 is fixed at the bottom of the protection box 1, a motor 3 is fixed at the upper end of the support 2 through a bolt, a waterproof mechanism 4 is further arranged at the bottom of the protection box 1, when water enters the protection box 1, the waterproof mechanism 4 can be lifted to protect the motor 3, a drainage mechanism 5 is arranged at the bottom of the protection box 1, when excessive water seeps in the protection box 1, the drainage mechanism 5 can drain the water in the protection box 1, and a heat dissipation mechanism 6 is further arranged on the protection box 1. Put protecting box 1 that will be equipped with motor 3 under water, when leading to protecting box 1 seepage because other factors, waterproofing mechanism 4 at first contacts water and upwards lifting, when waterproofing mechanism 4 rises a take the altitude, drainage mechanism 5 starts and carries out the drainage in to protecting box 1, if too big drainage mechanism 5 of inflow comes not to reach the water discharge, can guarantee under waterproofing mechanism 4's protection that motor 3 does not fall by the water logging, thereby play the effect of protection motor 3, because motor 3 can produce a large amount of heats in the work under the relative confined environment under water, dispel the heat to motor 3 in protecting box 1 through setting up heat dissipation mechanism 6, guarantee the ventilation cooling in the protecting box 1.
As shown in fig. 2, the waterproof mechanism 4 includes a fixing ring 7 hermetically connected to the side wall of the bracket, and a support rod 8 connected to the outer wall of the fixing ring 7 and extending outward, an annular floating plate 9 is erected on the support rod 8, the floating plate 9 here is a foam plate or a hollow plastic plate with light mass, the height of the fixing ring 7 is half of the height of the support 2, a flexible waterproof cloth 10 is connected between the floating plate 9 and the fixing ring 7, the middle part of the waterproof cloth 10 surrounds to form a closed space, so that the periphery of the motor 3 can be surrounded from bottom to top, an annular mounting groove 11 is formed in the upper surface of the floating plate 9, and a coating mechanism 12 for coating the motor 3 is arranged in the mounting groove 11; when the protective box 1 intakes water, the floating plate 9 is upwards floated along with the liquid level in the protective box 1 by upward buoyancy, and the waterproof cloth 10 can be upwards pulled up along with the upward movement of the floating plate 9, so that the waterproof cloth 10 plays a certain protection role around the motor 3 from bottom to top, and meanwhile, the motor 3 is gradually coated by the coating mechanism 12 from the upper part, and the motor 3 is directly contacted with water when the water amount is too large.
As shown in fig. 2 and 3, the coating mechanism 12 includes a rotating shaft 13 disposed in the mounting groove 11, the rotating shaft 13 is disposed along a diameter direction of the floating ring perpendicular to the shaft of the motor 3, and further includes a traction ring 14 disposed in a semicircular shape and having two ends rotatably connected to the rotating shaft 13 through a torsion spring, the traction ring 14 tends to rotate toward the front end of the motor 3 all the time under the action of the torsion spring, a coating cloth 15 is sleeved on the traction ring 14, the other end of the coating cloth 15 is fixedly connected to one side of the mounting groove 11 and close to the tail of the motor 3, the tail of the motor 3 is connected to a control assembly 16 for controlling the rotation of the traction ring 14, and a sealing assembly 17 is disposed at one end of the floating ring close to the output shaft; when the floating plate 9 rises, the control component 16 is triggered, so that when the floating plate 9 rises, the control component 16 controls the traction ring 14 to rotate towards the output shaft of the motor 3, so that the wrapping cloth 15 covers the motor 3 from the upper end, and when the liquid level in the protective box 1 falls, the floating plate 9 falls and drives the control component 16 to drive the traction ring 14 to rotate towards the tail end of the motor 3, so that the wrapping cloth 15 is opened from the upper end of the motor 3, and the heat dissipation of the motor 3 is facilitated.
As shown in fig. 2, the control assembly 16 includes a control wire 18 connected to the rear portion of the motor 3, the end of the control wire 18 being higher than the floating plate 9, and a pull ring 19 connected to the floating plate 9 near the rear portion of the motor 3, the control wire 18 being bent upward around the pull ring 19 and connected to the center of the pull ring 14; when the floating plate 9 is lifted upwards, the end part of the control line 18 is pulled by the traction ring 14 to rotate towards the direction of the output shaft of the motor 3 under the action of the torsion spring, so that the motor 3 is coated from the upper part through the coating cloth 15, when the floating plate 9 is driven to descend by the descending of the water level, the control line 18 is pulled by the pull ring 19 to contract downwards, so that the traction ring 14 is pulled to rotate towards the tail end of the motor 3 until the coating cloth 15 is opened, and the heat dissipation of the motor 3 is improved.
As shown in fig. 2, the sealing assembly 17 includes a semi-circular caulking groove 20 opened at one end of the floating plate 9 close to the output shaft of the motor 3, the caulking groove 20 has an upward opening, a fastening groove 21 corresponding to the caulking groove 20 is provided at the middle part of the traction ring 14, the fastening groove 21 and the caulking groove 20 are spliced to form a circular through hole for the output shaft of the motor 3 to extend out, and rubber pads are provided on the inner wall surfaces of the fastening groove 21 and the caulking groove 20; thus, when the traction ring 14 rotates towards the direction of the output shaft of the motor 3, the output shaft of the motor 3 is extended out of the through hole through the through hole formed by the catching groove 21 and the embedding groove 20, thereby ensuring the closing of the wrapping cloth 15.
As shown in fig. 1, a guide rod 30 is vertically fixed on the ground of the protection box 1, a guide ring 31 is connected to the floating plate 9, the guide ring 31 is inserted into the guide rod 30 and ascends and descends along the guide rod 30, so that when the water level rises, the floating plate 9 ascends along the vertical direction, and the caulking groove 20 and the catching groove 21 are ensured to be just aligned with the output shaft of the motor 3.
As shown in fig. 2, a sleeve 22 is welded to a shell of the motor 3 in a sealing manner, one end of the sleeve 22 is connected to the shell of the motor 3, the other end of the sleeve 22 is welded to the inner wall of the protective box 1 in a sealing manner, an output shaft of the motor 3 penetrates through the sleeve 22 and extends out of the protective box 1, and the output shaft of the motor 3 is in rotary sealing with the side wall of the protective box 1 through a sealing ring; when the traction ring 14 rotates to one end of the output shaft of the motor 3, the inner wall of the caulking groove 20 and the inner wall of the buckling groove 21 abut against the outer wall of the sleeve 22, sealing is guaranteed through a rubber pad, the caulking groove is separated from the output shaft of the motor 3, and the output shaft of the motor 3 rotating at a high speed is prevented from touching the floating plate 9 and the traction ring 14.
As shown in fig. 1, the drainage mechanism 5 includes a water pump 23 disposed at the bottom of the protective box 1, and a proximity switch 24 (indicated in fig. 2) disposed at the tail of the motor 3 and having a detection end facing downward, the proximity switch 24 is electrically connected to a controller, the controller is disposed on the ground, the controller is electrically connected to the water pump 23 and controls the water pump 23 to open and close, and a cable pipe 25 for a cable to pass through is connected to a side wall of the protective box 1; when water enters the protective box 1 and the water level exceeds half of the height of the support 2, the floating plate 9 rises, the proximity switch 24 detects that the floating plate 9 rises and sends a detection signal to the controller, the controller processes the signal and sends an execution signal to the water suction pump 23 to control the water suction pump 23 to suck water outwards, and therefore the water in the protective box 1 is discharged outwards.
As shown in fig. 1, the heat dissipation mechanism 6 includes an air inlet pipe 26 connected to the top of the protection box 1, the air inlet pipe 26 extends upward out of the water surface and is connected with an air blower 27, the side wall of the protection box 1 is connected with an air outlet pipe 28, and the air outlet pipe 28 extends upward out of the water surface; when motor 3 during operation, air-blower 27 is to the interior ancient wind of protective housing 1, and the air that lets in flows out through air-out pipe 28, takes out the high temperature gas in the protective housing 1, realizes the heat dissipation to motor 3.
As shown in fig. 1, the top surface of the protection box 1 is fixedly connected with a water-retaining cover 29, and the water-retaining cover 29 is positioned above the motor 3 and is arranged in an upward-convex arc surface; when the top of the protection box 1 leaks water, the leaked water firstly falls on the upper surface of the water retaining cover 29, and the upper surface of the water retaining cover 29 is arranged in an upward protruding mode, so that water flow is dispersed around along the upper surface of the water retaining cover 29, and damage to the motor 3 caused by the water flow directly falling on the motor 3 is avoided.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a protector of motor underwater work, is including fixing protective housing (1) at the bottom of a river, its characterized in that: the device is characterized by also comprising a support (2) arranged at the bottom of the protective box (1), a motor (3) connected to the support (2), a waterproof mechanism (4) arranged at the bottom of the protective box (1) and used for preventing the motor (3) from being soaked in water, a drainage mechanism (5) arranged at the bottom of the protective box (1) and used for draining the seeped water, and a heat dissipation mechanism (6) connected to the top of the protective box (1) and communicated with the upper part of a water surface; the waterproof mechanism (4) comprises a fixing ring (7) hermetically connected to the side wall of the support (2) and a supporting rod (8) connected to the outer wall of the fixing ring (7) and extending outwards, an annular floating plate (9) is erected on the supporting rod (8), flexible waterproof cloth (10) is connected between the floating plate (9) and the fixing ring (7), an annular mounting groove (11) is formed in the upper surface of the floating plate (9), and a coating mechanism (12) used for coating the motor (3) is arranged in the mounting groove (11); cladding mechanism (12) are including setting up pivot (13) in mounting groove (11), pivot (13) are along the diameter direction setting of floating ring perpendicular to motor (3) axle, still including being that semicircle ring setting and both ends rotate through the torsional spring and connect in traction ring (14) of pivot (13), traction ring (14) have all the time towards motor (3) front end pivoted trend, traction ring (14) have cup jointed cladding cloth (15), the other end fixed connection of cladding cloth (15) is close to in one side of motor (3) afterbody in mounting groove (11), the end connection of motor (3) is used for controlling traction ring (14) pivoted control assembly (16), the one end that the floating ring is close to motor (3) output shaft is provided with seal assembly (17).
2. The protection device for underwater operation of the motor according to claim 1, wherein: the control assembly (16) comprises a control wire (18) connected to the tail part of the motor (3) and a pull ring (19) connected to the floating plate (9) and close to the tail part of the motor (3), and the control wire (18) bypasses the pull ring (19) and is bent upwards to be connected to the center of the traction ring (14).
3. The protection device for underwater operation of the motor according to claim 1, wherein: sealing assembly (17) are close to motor (3) output shaft one end and are semicircular ring shape caulking groove (20) including seting up in floating plate (9), caulking groove (20) opening up, traction ring (14) middle part is provided with catching groove (21) that correspond with caulking groove (20), circular and power supply machine (3) output shaft circular through-hole that stretches out is constituteed in catching groove (21) and caulking groove (20) concatenation, catching groove (21) and caulking groove (20) internal face all are provided with the rubber pad.
4. A protection device for underwater operation of an electric motor according to claim 3, characterized in that: the motor (3) shell is connected with sleeve (22), sleeve (22) one end is connected in motor (3) shell, and other end sealing connection is in protective housing (1) inner wall, the output shaft of motor (3) passes sleeve (22) and stretches out protective housing (1).
5. The protection device for underwater operation of the motor according to claim 1, wherein: drainage mechanism (5) including set up in suction pump (23) of protective housing (1) bottom, set up in motor (3) afterbody and proximity switch (24) that its sense terminal is down, proximity switch (24) electricity is connected with the controller, and the controller electricity is connected in suction pump (23) and control opening and close of suction pump (23), protective housing (1) lateral wall is connected with cable pipe (25) that are used for supplying the cable to pass.
6. The protection device for underwater operation of the motor according to claim 1, wherein: heat dissipation mechanism (6) are including connecting in air-supply line (26) at protective housing (1) top, air-supply line (26) upwards stretch out the surface of water and are connected with air-blower (27), protective housing (1) lateral wall is connected with out tuber pipe (28), it upwards stretches out the surface of water to go out tuber pipe (28).
7. The protection device for underwater operation of the motor according to claim 1, wherein: the top surface of the protection box (1) is fixedly connected with a water retaining cover (29), and the water retaining cover (29) is located above the motor (3) and is arranged in a convex arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911201630.4A CN110994864B (en) | 2019-11-29 | 2019-11-29 | Protection device for motor underwater work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911201630.4A CN110994864B (en) | 2019-11-29 | 2019-11-29 | Protection device for motor underwater work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110994864A CN110994864A (en) | 2020-04-10 |
| CN110994864B true CN110994864B (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911201630.4A Active CN110994864B (en) | 2019-11-29 | 2019-11-29 | Protection device for motor underwater work |
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| Country | Link |
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| CN (1) | CN110994864B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112671167A (en) * | 2020-12-20 | 2021-04-16 | 宜都市天弘机械工程服务有限公司 | Motor protection device with waterproof and overheat protection dual function |
| CN114141170B (en) * | 2021-08-27 | 2023-07-18 | 上海金笔达标识标牌工程有限公司 | Outdoor lamp house drainage device that is blocked light |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140077499A1 (en) * | 2012-09-14 | 2014-03-20 | Eegen Co., Ltd. | Underwater electric rotating device having waterproofing structure and underwater generator using the same |
| CN102852115B (en) * | 2012-10-15 | 2014-08-27 | 河海大学 | Waterproof device for protecting small underwater motor for hydraulic model |
| CN203491825U (en) * | 2013-08-15 | 2014-03-19 | 北京国润通达科技有限公司 | Underground waterproof communication device cabin |
| CN105958709A (en) * | 2016-06-14 | 2016-09-21 | 溧水县得瑞微型电机厂 | Motor protecting cover |
| CN209200803U (en) * | 2018-11-21 | 2019-08-02 | 江西锦锋诚电器有限公司 | A kind of novel small machine is placed in underwater water-tight device |
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2019
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| Publication number | Publication date |
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| CN110994864A (en) | 2020-04-10 |
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