CN213572246U - Waterproof drainage device of hydraulic engineering construction - Google Patents
Waterproof drainage device of hydraulic engineering construction Download PDFInfo
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- CN213572246U CN213572246U CN202021704449.3U CN202021704449U CN213572246U CN 213572246 U CN213572246 U CN 213572246U CN 202021704449 U CN202021704449 U CN 202021704449U CN 213572246 U CN213572246 U CN 213572246U
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- drainage device
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Abstract
本申请涉及一种水利工程施工防水排水装置，其包括设置在围堰内的排水装置，围堰上开设有排水槽，排水装置放置在排水槽内，排水装置包括闸门，闸门上设置有用于升降闸门的升降电机和螺纹杆，闸门的一侧设置有过滤组件，过滤组件包括第一滤网和第二滤网，第一滤网和第二滤网并排设置，排水槽的两侧壁上均开设有两条第一滑槽，第一滑槽的长度方向与闸门的长度方向一致，第一滤网和第二滤网的两侧分别与两条第一滑槽滑动配合，围堰上设置有用于提升第一滤网和第二滤网的提升组件。本申请具有便于清理过滤组件的效果。
The present application relates to a water conservancy project construction waterproof and drainage device, which includes a drainage device arranged in a cofferdam, a drainage groove is opened on the cofferdam, the drainage device is placed in the drainage groove, and the drainage device includes a gate, and the gate is provided with a sluice for lifting and lowering. The lift motor and threaded rod of the gate are provided with a filter assembly on one side of the gate. The filter assembly includes a first filter screen and a second filter screen. The first filter screen and the second filter screen are arranged side by side. There are two first chutes, the length direction of the first chutes is consistent with the length direction of the gate, the two sides of the first filter screen and the second filter screen are slidingly matched with the two first chutes respectively, and the cofferdam is provided with There are lift assemblies for lifting the first screen and the second screen. The present application has the effect of facilitating cleaning of the filter assembly.
Description
Technical Field
The application relates to the field of construction equipment, in particular to a waterproof and drainage device for hydraulic engineering construction.
Background
The hydraulic engineering construction is one of engineering construction, along with the development of modern science and technology, novel building material and large-scale special construction machinery constantly appear and improve day by day, hydraulic engineering has gradually turned to mechanized construction by traditional manpower construction, in the hydraulic engineering work progress, need carry out waterproof and drainage work to the job site to constructor carries out the construction, in waterproof drainage, generally can add to set up the filter screen and filter the water, in order to avoid the downstream waters of debris pollution that the construction produced.
The current chinese patent with an authorization notice number CN210421025U discloses a water-proof drainage device for hydraulic engineering construction, the key points of which lie in: the bottom plate comprises a base plate, two backup pads of top fixedly connected with of bottom plate, two first through-hole and second through-hole have been seted up respectively to the top fixedly connected with diaphragm of backup pad, two first spout and second spout have all been seted up to the opposite face of backup pad, sliding connection has the filter screen in the second spout, the filter screen is located the second through-hole and through the top fixed connection of bolt and diaphragm.
In view of the above-mentioned related art, the inventors consider that there is a drawback that it is inconvenient to clean the filter screen when the filter screen is clogged.
SUMMERY OF THE UTILITY MODEL
In order to facilitate the clearance filtering component, this application provides a waterproof drainage device of hydraulic engineering construction.
The utility model provides a pair of hydraulic engineering construction water-proof drainage device adopts following technical scheme, including setting up the drainage device in the cofferdam, the water drainage tank has been seted up on the cofferdam, drainage device places in the water drainage tank, drainage device includes the gate, be provided with elevator motor and the threaded rod that is used for the lift gate on the gate, one side of gate is provided with filtering component, filtering component includes first filter screen and second filter screen, first filter screen and second filter screen set up side by side, two first spouts have all been seted up on the both sides wall of water drainage tank, the length direction of first spout is unanimous with the length direction of gate, the both sides of first filter screen and second filter screen respectively with two first spout sliding fit, be provided with the promotion subassembly that is used for promoting first filter screen and second filter screen on the cofferdam.
Through adopting above-mentioned technical scheme, the gate is used for the drainage, the filter assembly who sets up in gate one side is used for filtering the debris of aquatic, make the debris that the construction produced difficult down-flow basin of flowing through the gate, produce the pollution to the water, when absorbent debris is too much on first filter screen, the staff can promote first filter screen to the cofferdam through promoting the subassembly, then use the clearance subassembly to clear up first filter screen, when clearing up first filter screen, the second filter screen can play the filter effect to the water, set up first filter screen and second filter screen alternative work, when clearing up one of them filter screen, drain still has the filter effect, it clears up filter assembly to set up promotion subassembly and clearance subassembly, the advantage of the clearance filter assembly of being convenient for has.
Preferably, the hoisting component comprises two fixed vertical rods arranged on the cofferdam and two vertical rods respectively arranged on two sides of the drainage groove, the length direction of each vertical rod is consistent with the length direction of the first filter screen and is provided with a connecting plate, the connecting plates are provided with two winches in a rotating mode, the winches are provided with connecting ropes, two through holes for the connecting ropes to penetrate through the connecting plates are formed in the connecting plates, one ends of the connecting ropes, far away from the winches, are fixedly provided with hooks, the top ends of the first filter screen and the second filter screen are provided with hanging rings, the hooks are in clearance fit with the hanging rings, and rotating components used for rotating the winches are further arranged on the connecting plates.
Through adopting above-mentioned technical scheme, when lifting first filter screen and second filter screen, at first the couple that will set up on the connection rope is connected with the link on first filter screen or the second filter screen, then rotate the capstan winch, the capstan winch rotates and makes two connection ropes all twine on the capstan winch, thereby shorten the length of two connection ropes, when the couple is hung on first filter screen, first filter screen is promoted, when hanging on the second filter screen, the second filter screen is promoted, the connecting plate provides supporting role for the capstan winch, the montant has prolonged the distance between connecting plate and first filter screen and the second filter screen, the length of montant is than filter assembly's height length, make the promotion subassembly can promote first filter screen and second filter screen out water drainage tank completely.
Preferably, the rotating assembly comprises a rotating shaft, the two winches are fixedly arranged on the rotating shaft, the connecting plate is further provided with a driving motor, and the rotating shaft is fixedly connected with an output shaft of the driving motor.
Through adopting above-mentioned technical scheme, axis of rotation and driving motor's output shaft, the capstan winch setting is in the axis of rotation, driving motor during operation, the axis of rotation rotates, the capstan winch that sets up in the axis of rotation is being driven and is rotating, makes then connect the rope and twine on the capstan winch, and then promotes first filter screen or second filter screen, uses driving motor and axis of rotation to rotate the capstan winch, has convenient to use, practices thrift staff intensity of labour's effect.
Preferably, the cofferdam is provided with a cleaning assembly, the cleaning assembly comprises a scraper, one end of the scraper is provided with a sliding block, the cofferdam is provided with a supporting plate and a supporting frame, the supporting frame is vertically arranged on the cofferdam, the supporting plate is fixedly arranged at the top end of the supporting frame, the length direction of the supporting plate is consistent with the length direction of the cofferdam, the lower surface of the supporting plate is provided with a second sliding groove along the length direction, a screw rod is rotatably arranged in the second sliding groove, and the sliding block is sleeved on the screw rod.
Through adopting above-mentioned technical scheme, the scraper blade is used for clearing up first filter screen or second filter screen towards the inside one side of cofferdam, slider and the lead screw-thread fit that sets up on the scraper blade, because the slider is fixed in the spout by second spout and lead screw, so the slider only can move at the length direction of second spout, and can not drop the spout, when the lead screw rotates, the slider receives the effort of lead screw, at second spout internal motion, thereby drive the scraper blade motion of setting in the slider below, make the reciprocal scraping of scraper blade on first filter screen or second filter screen, thereby clear up first filter screen or second filter screen, set up scraper blade clearance filter screen, it is convenient to have the clearance, advantage that the clearance efficiency is high.
Preferably, the bearings are arranged at the two ends of the second sliding groove, the two ends of the screw rod are in interference fit with the inner rings of the two bearings respectively, the support plate extends out of one end, away from the water drainage groove, of the screw rod, the servo motor is fixedly arranged at one end, away from the water drainage groove, of the support plate, and the output shaft of the servo motor is fixedly connected with one end, away from the water drainage groove, of the screw rod.
Through adopting above-mentioned technical scheme, the both ends of lead screw respectively with the inner circle interference fit of two bearings, the bearing makes the lead screw can realize normal rotation under the condition that is fixed in the second spout, driving motor's output shaft is connected with the one end of lead screw, servo motor during operation, the lead screw is driven and is taken place the rotation to drive the slider work, drive the scraper blade then and clear up the work.
Preferably, a third sliding chute is formed in the cofferdam, the third sliding chute is located right below the second sliding chute, and the length direction of the third sliding chute is consistent with the length direction of the second sliding chute.
Through adopting above-mentioned technical scheme, the third spout is used for placing the filtering component who promotes to the cofferdam upper surface, and the third spout sets up under the second spout for the slider that sets up in the second spout is when sliding, and the scraper blade on the slider can laminate mutually with the first filter screen of placing in the third spout or the filterable filtration face of second, thereby clears up the filtration face, and first filter screen and second filter screen homoenergetic can slide in the third spout.
Preferably, the scraper is provided with rigid bristles.
Through adopting above-mentioned technical scheme, when clearing up first filter screen or second filter screen, the cleaning performance of scraper blade can be strengthened to the scratch that sets up on the scraper blade, has the advantage of reinforcing clearance effect.
Preferably, all be provided with the handle on first filter screen and the second filter screen, the handle is located one side that first filter screen and second filter screen are close to the clearance subassembly.
Through adopting above-mentioned technical scheme, after first filter screen or second filter screen were lifted by the hoisting component, the staff can hold the handle with the hand to drag first filter screen or second filter screen and get into the third spout and slide in the third spout, set up the effect that the handle has convenient to use.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the cofferdam cleaning device, the lifting assembly is arranged on the cofferdam and used for lifting the filtering assembly, and the cleaning assembly is arranged for cleaning the filtering assembly lifted to the cofferdam, so that the effect of cleaning the filtering assembly is facilitated;
2. according to the filter assembly, the first filter screen and the second filter screen are arranged on the filter assembly, so that when one filter screen is cleaned, the other filter screen can continue to work, and a water discharge port always has a filtering effect;
3. this application has the clearance convenience through servo motor, slider and the lead screw that sets up the scraper blade and drive the scraper blade and move in the direction of second spout, has the advantage that the clearance is efficient.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic diagram of a lifting assembly according to one embodiment of the present application;
FIG. 3 is a schematic structural diagram of a cleaning assembly according to one embodiment of the present application;
FIG. 4 is a schematic diagram of the structure of the scraper, the lead screw, the driving motor, the slider and the bearing according to one embodiment of the present application.
Description of reference numerals: 1. cofferdam; 11. a water discharge tank; 12. a first chute; 13. a third chute; 2. a drainage device; 21. a gate; 211. a lifting motor; 212. a threaded rod; 22. a filter assembly; 221. a first filter screen; 222. a second filter screen; 223. hanging a ring; 224. a handle; 3. a lifting assembly; 31. a vertical rod; 32. a connecting plate; 321. a through hole; 33. a winch; 331. connecting ropes; 332. hooking; 4. a rotating assembly; 41. a rotating shaft; 42. a drive motor; 5. cleaning the assembly; 51. a squeegee; 511. hard bristles; 52. a slider; 53. a support frame; 54. a support plate; 541. a second chute; 55. a lead screw; 56. a bearing; 57. a servo motor.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses waterproof drainage device of hydraulic engineering construction. Referring to fig. 1, the cofferdam comprises a drainage device 2 arranged in a cofferdam 1, wherein a drainage channel 11 is arranged on the cofferdam 1, the drainage channel 11 is a notch on the cofferdam 1, water in the cofferdam 1 is drained out of the cofferdam 1 through the drainage channel 11, the drainage device 2 is arranged in the drainage channel 11, and two sides of the drainage device 2 are abutted against the drainage channel 11, so that the drainage flow of the drainage channel 11 is conveniently controlled; the drainage device 2 comprises a gate 21, wherein a lifting motor 211 and a threaded rod 212 for lifting the gate 21 are arranged on the gate 21, the lifting of the gate 21 can control the water flow out of the drainage tank 11, the gate 21 is controlled by the lifting motor 211 and the threaded rod 212, the threaded rod 212 is connected with the top end of the gate 21, and the lifting motor 211 can control the threaded rod 212 to move up and down; one side of gate 21 is provided with filtering component 22, and filtering component 22 is used for filtering the water, is provided with lifting means 3 and clearance subassembly 5 on the cofferdam 1, and lifting means 3 is used for promoting filtering component 22 on cofferdam 1, and clearance subassembly 5 is used for clearing up filtering component 22.
Referring to fig. 1 and 2, the filtering assembly 22 includes a first filter screen 221 and a second filter screen 222, the first filter screen 221 and the second filter screen 222 are arranged in the drainage tank 11 side by side, when a large amount of impurities are adsorbed on the first filter screen 221 and need to be cleaned, the lifting assembly 3 lifts the first filter screen 221 onto the cofferdam 1, the second filter screen 222 can continue to play a filtering role at the drainage tank 11, after the first filter screen 221 is cleaned, the second filter screen 222 is cleaned, and the first filter screen 221 and the second filter screen 222 are arranged to work alternately, so that the filtering assembly 22 can also play a filtering role when one of the filter screens is cleaned, and the cleaning effect is convenient; handles 224 are arranged on the first filter screen 221 and the second filter screen 222, the handles 224 are positioned on one side of the first filter screen 221 and the second filter screen 222 close to the cleaning assembly 5, and the handles 224 on the first filter screen 221 and the second filter screen 222 enable an operator to move the first filter screen 221 or the second filter screen 222 through the handles 224 when the first filter screen 221 or the second filter screen 222 is lifted onto the cofferdam 1; two first chutes 12 have been all seted up on the both sides wall of water drainage tank 11, the length direction of first chute 12 is unanimous with the length direction of gate 21, the both sides of first filter screen 221 and second filter screen 222 respectively with two first chutes 12 sliding fit, set up first chute 12, make first filter screen 221 and second filter screen 222 both can slide on vertical direction, first chute 12 fixes first filter screen 221 and second filter screen 222 in water drainage tank 11, also be convenient for promote subassembly 3 and promote first filter screen 221 or second filter screen 222.
Referring to fig. 2, the lifting assembly 3 includes two vertical rods 31 fixedly disposed on the cofferdam 1, the two vertical rods 31 are respectively located at two sides of the drainage channel 11, the vertical rods 31 play a supporting role in the lifting assembly 3, the length direction of the two vertical rods 31 is consistent with the length direction of the first filter screen 221, when the filtering assembly 22 is lifted, the first filter screen 221 and the second filter screen 222 are lifted from the bottom end of the drainage channel 11 to between the two vertical rods 31, and the height of the two vertical rods 31 is longer than the length of the filtering assembly 22; a connecting plate 32 is fixedly arranged between the two vertical rods 31, a rotating shaft 41, a driving motor 42 and two winches 33 are arranged on the connecting plate 32, the two winches 33 are fixedly arranged on the rotating shaft 41, the rotating shaft 41 is directly connected with an output shaft of the driving motor 42, the rotating shaft 41 provides a supporting function for the two winches 33, and the output shaft of the driving motor 42 provides a supporting function for the rotating shaft 41; the winch 33 is wound with a connecting rope 331, the connecting rope 331 is used for lifting the filter component 22, two through holes 321 for the connecting rope 331 to penetrate through the connecting plate 32 are formed in the connecting plate 32, and the connecting rope 331 is connected with the filter component 22 through the through holes 321, so that the friction force between the connecting rope 331 and the connecting plate 32 when the connecting rope 331 is shortened is reduced; connect rope 331 and keep away from the fixed couple 332 that is provided with of one end of capstan winch 33, the top of first filter screen 221 and second filter screen 222 all is provided with link 223, couple 332 and link 223 clearance fit, when needing to promote filter component 22 and clear up first filter screen 221, be connected couple 332 and the link 223 on the first filter screen 221, when needing to clear up second filter screen 222, be connected couple 332 and the link 223 on the second filter screen 222, when starting driving motor 42, two capstan winches 33 all can rotate, thereby promote first filter screen 221 or second filter screen 222.
Referring to fig. 3 and 4, a support plate 54 and a support frame 53 for placing the scrapers 51 are arranged on the cofferdam 1, the support frame 53 provides a supporting function for the support plate 54, the support frame 53 is vertically arranged on the cofferdam 1, the support frame 53 comprises a first filter screen 221 or a second filter screen 222 which can be placed on the support frame 53, the support plate 54 is fixedly arranged at the top end of the support frame 53, and the support plate 54 provides a supporting function for the cleaning assembly 5; the lower surface of the supporting plate 54 is provided with a second sliding groove 541 along the length direction, one end of the scraper 51 is provided with a sliding block 52, the scraper 51 can slide on the lower surface of the supporting plate 54 due to the matching of the sliding block 52 and the second sliding groove 541, the scraper 51 is provided with hard bristles 511, and the cleaning effect of the scraper 51 is enhanced due to the hard bristles 511; the cofferdam 1 is provided with a third chute 13, the third chute 13 is positioned under the second chute 541, the length direction of the third chute 13 is consistent with that of the second chute 541, when the filtering component 22 is cleaned, a worker firstly lifts the first filtering screen 221 or the second filtering screen 222 to the cofferdam 1 through the lifting component 3, then holds the handle 224 to slide the first filtering screen 221 or the second filtering screen 222 to the third chute 13, the first filtering screen 221 or the second filtering screen 222 can be abutted against one side of the support frame 53 to be parallel to the scraper 51, and the scraper 51 can clean the first filtering screen 221 or the second filtering screen 222 conveniently.
Referring to fig. 3 and 4, a lead screw 55 is rotatably disposed in the second chute 541, the slider 52 is sleeved on the lead screw 55, the slider 52 is limited in the second chute 541 by the lead screw, so that the slider 52 can only move in the length direction of the lead screw 55, and a plurality of side surfaces of the slider 52 are limited by the second chute 541, the slider 52 cannot rotate, and when the lead screw 55 rotates, the slider 52 in threaded fit with the lead screw 55 is driven by the lead screw 55 to move in the second chute 541 along the length direction of the lead screw 55; both ends of second spout 541 all are provided with bearing 56, lead screw 55's both ends respectively with the inner circle interference fit of two bearing 56, bearing 56 makes lead screw 55 realize normal rotation under the condition of being fixed in second spout 541, lead screw 55 keeps away from the one end of water drainage tank 11 and extends backup pad 54, backup pad 54 keeps away from the fixed servo motor 57 that is provided with of one end of water drainage tank 11, the output shaft of servo motor 57 and the one end fixed connection of water drainage tank 11 are kept away from to lead screw 55, use servo motor 57 to drive lead screw 55 and rotate, lead screw 55 rotates and drives slider 52 and slide in second spout 541, thereby drive scraper blade 51 clearance filter assembly 22, it is convenient to have the clearance, practice thrift the effect of staff's physical power.
The implementation principle of the waterproof drainage device 2 for hydraulic engineering construction in the embodiment of the application is as follows: when cleaning the filtering assembly 22, firstly hanging the hook 332 in the hanging ring 223 at the top end of the first filter screen 221 or the second filter screen 222 to be cleaned, then starting the driving motor 42 to rotate the winch 33 to lift the first filter screen 221 or the second filter screen 222 to the same height as the cofferdam 1, then holding the handle 224 on the first filter screen 221 or the second filter screen 222, sliding the first filter screen 221 or the second filter screen 222 into the third chute 13, then starting the servo motor 57, the servo motor 57 operating to drive the lead screw 55 arranged in the second chute 541 to rotate, the lead screw 55 rotating to drive the slide block 52 to move in the second chute 541, the scraper 51 scraping the first filter screen 221 or the second filter screen 222 to complete the cleaning operation, after the cleaning operation, sliding the first filter screen 221 or the second filter screen 222 to the vicinity of the drainage chute 11, and then hanging the hook 332 on the connecting rope 331 in the hanging ring 223, and starting the driving motor 42 to enable the first filter screen 221 or the second filter screen 222 to slide in the first chute 12, completing the homing of the first filter screen 221 or the second filter screen 222, and repeating the steps to clean the part which is not cleaned in the filter assembly 22.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a hydraulic engineering construction water-proof drainage device, is including setting up drainage device (2) in cofferdam (1), drain tank (11) have been seted up on cofferdam (1), drainage device (2) are placed in drain tank (11), drainage device (2) are including gate (21), be provided with elevator motor (211) and threaded rod (212) that are used for lift gate (21) on gate (21), its characterized in that: one side of gate (21) is provided with filtering component (22), filtering component (22) include first filter screen (221) and second filter screen (222), first filter screen (221) and second filter screen (222) set up side by side, two first spout (12) have all been seted up on the both sides wall of water drainage tank (11), the length direction of first spout (12) is unanimous with the length direction of gate (21), the both sides of first filter screen (221) and second filter screen (222) respectively with two first spout (12) sliding fit, be provided with promotion subassembly (3) that are used for promoting first filter screen (221) and second filter screen (222) on cofferdam (1).
2. The waterproof drainage device of hydraulic engineering construction according to claim 1, characterized in that: the lifting assembly (3) comprises two vertical rods (31) fixedly arranged on the cofferdam (1), the two vertical rods (31) are respectively positioned at two sides of the drainage groove (11), the length direction of the two vertical rods (31) is consistent with that of the first filter screen (221), a connecting plate (32) is fixedly arranged between the two vertical rods (31), two winches (33) are arranged on the connecting plate (32) in a rotating manner, a connecting rope (331) is wound on the winches (33), two through holes (321) for the connecting rope (331) to pass through the connecting plate (32) are formed in the connecting plate (32), a hook (332) is fixedly arranged at one end, far away from the winches (33), of the connecting rope (331), a hanging ring (223) is arranged at the top ends of the first filter screen (221) and the second filter screen (222), and the hook (332) is in clearance fit with the hanging ring (223), and a rotating assembly (4) for rotating the winch (33) is also arranged on the connecting plate (32).
3. The waterproof drainage device of hydraulic engineering construction according to claim 2, characterized in that: the rotating assembly (4) comprises a rotating shaft (41), the two winches (33) are fixedly arranged on the rotating shaft (41), a driving motor (42) is further arranged on the connecting plate (32), and the rotating shaft (41) is fixedly connected with an output shaft of the driving motor (42).
4. The waterproof drainage device of hydraulic engineering construction according to claim 1, characterized in that: the cofferdam comprises a cofferdam body (1), and is characterized in that a cleaning assembly (5) is arranged on the cofferdam body (1), the cleaning assembly (5) comprises scrapers (51), a sliding block (52) is arranged at one end of each scraper (51), a supporting plate (54) and a supporting frame (53) which are used for placing the scrapers (51) are arranged on the cofferdam body (1), the supporting frame (53) is vertically arranged on the cofferdam body (1), the supporting plate (54) is fixedly arranged at the top end of the supporting frame (53), the length direction of the supporting plate (54) is consistent with that of the cofferdam body (1), a second sliding groove (541) is formed in the lower surface of the supporting plate (54) along the length direction of the lower surface, a lead screw (55) is rotatably arranged in the second sliding groove (541), and the.
5. The waterproof drainage device of hydraulic engineering construction according to claim 4, characterized in that: both ends of second spout (541) all are provided with bearing (56), the both ends of lead screw (55) respectively with the inner circle interference fit of two bearing (56), the one end that drain tank (11) were kept away from in lead screw (55) extends backup pad (54), the fixed servo motor (57) that is provided with of one end that drain tank (11) were kept away from in backup pad (54), the output shaft of servo motor (57) and the one end fixed connection of keeping away from drain tank (11) of lead screw (55).
6. The waterproof drainage device of hydraulic engineering construction according to claim 1, characterized in that: the cofferdam (1) is provided with a third sliding chute (58), the third sliding chute (58) is positioned under the second sliding chute (541), and the length direction of the third sliding chute (58) is consistent with that of the second sliding chute (541).
7. The waterproof drainage device of hydraulic engineering construction according to claim 4, characterized in that: the scraping plate (51) is provided with hard brush hair (511).
8. The waterproof drainage device of hydraulic engineering construction according to claim 1, characterized in that: all be provided with handle (224) on first filter screen (221) and second filter screen (222), handle (224) are located one side that first filter screen (221) and second filter screen (222) are close to clearance subassembly (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021704449.3U CN213572246U (en) | 2020-08-14 | 2020-08-14 | Waterproof drainage device of hydraulic engineering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021704449.3U CN213572246U (en) | 2020-08-14 | 2020-08-14 | Waterproof drainage device of hydraulic engineering construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213572246U true CN213572246U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021704449.3U Active CN213572246U (en) | 2020-08-14 | 2020-08-14 | Waterproof drainage device of hydraulic engineering construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213572246U (en) |
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Effective date of registration: 20251201 Granted publication date: 20210629 |