CN111570078B

CN111570078B - Civil engineering is concrete waste recovery device for subway construction

Info

Publication number: CN111570078B
Application number: CN202010382265.8A
Authority: CN
Inventors: 张海军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-08-10
Anticipated expiration: 2040-05-08
Also published as: CN111570078A

Abstract

The utility model provides a civil engineering subway construction is with concrete waste recovery device, including lower extreme open-ended square tube, the feed inlet is seted up at the top of square tube, the bottom fixedly connected with funnel of square tube, the upper end opening of funnel is the rectangle, the lower extreme opening of funnel is circular, the bottom fixedly connected with upper end open-ended drum of funnel, the closing plate is installed to the lower extreme inner wall fixed fit of drum, drum bottom center department bearing is connected with vertical first pivot, first pivot is driven by power device, the upper end of first pivot upwards passes the first lead screw of fixedly connected with behind the closing plate. The universal nozzle drives the first rotating shaft to rotate through the power device, so that multiple functions are realized, sewage in concrete smoothly passes through the first filtering holes, dirt is prevented from depositing on the upper side of the second filtering plate to block the second filtering plate, water sprayed out of the universal nozzle can comprehensively flush the concrete, and the separation effect of the components of the concrete is better.

Description

Civil engineering is concrete waste recovery device for subway construction

Technical Field

The invention belongs to the field of concrete waste recovery devices, and particularly relates to a concrete waste recovery device for civil engineering subway construction.

Background

The premixed concrete is a concrete mixture which is sold by metering and mixing cement, stone, sand, water, an additive and a mineral admixture according to needs in a mixing station according to a certain proportion, is transported to a use place within a specified time by adopting a transport vehicle, is usually required to be used in the subway construction process, but concrete waste materials are often generated in the concrete use process due to various reasons, not only can cause great waste, but also can cause harm to the environment to a certain extent, reasonable recovery of the waste materials is more and more important, most of the existing concrete waste material recovery equipment uses a large amount of water to wash the concrete, so that the waste of water is caused, and when part of the concrete waste material recovery equipment is used for classifying and recovering sand and broken stones, a filter device in the concrete waste material recovery equipment is easy to block, there are major drawbacks.

Disclosure of Invention

The invention provides a concrete waste recovery device for civil engineering subway construction, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

a concrete waste recovery device for civil engineering subway construction comprises a square barrel with an opening at the lower end, a feed inlet is formed in the top of the square barrel, a funnel is fixedly connected to the bottom of the square barrel, the opening at the upper end of the funnel is rectangular, the opening at the lower end of the funnel is circular, a cylinder with an opening at the upper end is fixedly connected to the bottom of the funnel, a sealing plate is fixedly matched and installed on the inner wall of the lower end of the cylinder, a vertical first rotating shaft is connected to a bearing at the center of the bottom of the cylinder, the first rotating shaft is driven by a power device, a first lead screw is fixedly connected to the upper end of the first rotating shaft after the upper end of the first rotating shaft upwards penetrates through the sealing plate, the first rotating shaft is in sealing connection with the sealing plate, a first piston block is sleeved on the outer ring at the upper end of the first rotating shaft, a first lead screw joint is matched and sleeved on the first lead screw, vertical first sliding chutes are symmetrically formed in the left and right directions of the inner side wall of the cylinder, a first slide block is arranged in the first slide groove in a matching way, one end of each of the two first slide blocks is connected with the corresponding first slide groove in a sliding way in a matching way, the other end of each of the two first slide blocks is fixedly connected with a first lead screw joint, the bottom of each first slide block is fixedly connected with the top of a first piston block through a connecting rod, the upper end of each first lead screw is fixedly connected with a second rotating shaft, a second filter plate is sleeved on the outer ring of each second rotating shaft, the second filter plate is fixedly connected with the inner wall of the upper end of the cylinder in a sealing way, the second filter plate is connected with the second rotating shaft through a sealing bearing, the second filter plate is positioned on the upper side of the first piston block, a second through hole is arranged on the side wall of the cylinder between the second filter plate and the first piston block, a second lead screw is fixedly connected with the upper end of the second rotating shaft, the second lead screw is positioned in the square cylinder, vertical second slide grooves are symmetrically arranged on the front side wall and the back side wall of the square cylinder, the same connecting plate is arranged in a sliding way in a matching way, the center of the surface of the connecting plate is provided with a threaded hole, a second lead screw penetrates through the threaded hole on the connecting plate and is in threaded fit connection with the threaded hole, the left and right side walls of the connecting plate are symmetrically hinged and connected with expansion plates, the inner ends of the expansion plates are hinged and connected with the connecting plate, the outer ends of the expansion plates are respectively hinged and connected with the corresponding inner walls of the square cylinders, the movable plate surface of each expansion plate is uniformly provided with a plurality of vertical first filtering holes, the two expansion plates and the surface of the connecting plate can jointly block the inner cavity of the square cylinder, the middle parts of the left and right side walls of the square cylinder are symmetrically provided with first inclined holes which are inclined downwards, the first inclined holes are positioned on the upper sides of the expansion plates, openable sand screening devices are respectively arranged in the first inclined holes, the left and right symmetrical positions of the side walls of the cylinders, which are close to the tops of the sealing plates, are provided with first through holes, the first through holes are positioned on the lower sides of the first piston blocks, the outer ends of the first through holes on the right sides are matched and provided with one-way water inlet valves, the one-way water inlet valve is fixedly connected and communicated with the second through hole through a second connecting pipe, the outer end of the first through hole in the left side is matched with and provided with the one-way water outlet valve, an annular hole is formed in the inner side wall of the upper end of the square cylinder and located on the upper side of the first inclined hole, the annular hole is fixedly connected and communicated with the one-way water outlet valve through the first connecting pipe, the inner side of the annular hole is uniformly and fixedly connected and communicated with a plurality of universal nozzles, and the universal nozzles are located inside the square cylinder.

According to the concrete waste recycling device for civil engineering subway construction, the expansion plate is composed of the movable plate and the fixed sleeve, the second piston block is installed in the fixed sleeve in a matched mode, the movable plate is fixedly installed at the end, far away from the connecting plate, of the second piston block, the first filter holes are uniformly distributed in the plate surface of the movable plate, transverse blind holes are formed in the positions, corresponding to every two rows of first filter holes, of the second piston block and the movable plate, the blind holes are communicated with the corresponding first filter holes, and the fourth filter plates are fixedly installed in the positions, close to the first filter holes, of the channel.

According to the concrete waste recycling device for civil engineering subway construction, the scrapers are fixedly mounted at the ends, far away from the connecting plate, of the fixing sleeves, and the bottoms of the scrapers are in contact fit with the top surfaces of the corresponding movable plates.

According to the civil engineering subway construction concrete waste recovery device, the sand screening device comprises two gates, two gate opening and closing devices and a third filter plate, the gates are arranged at the left end and the right end of the first inclined hole in a matched mode, the first inclined hole can be blocked in a sealed mode by the gates, the middle of the gate positioned on the inner side of the square cylinder corresponds to the opening of the first inclined hole, the third filter plate is fixedly installed in the opening of the gate positioned on the inner side of the square cylinder in a matched mode, and the gate opening and closing devices are fixedly installed on the upper sides of all the gates.

According to the concrete waste recycling device for civil engineering subway construction, the gate opening and closing device is an electric telescopic rod, a fixed rod of the electric telescopic rod is fixedly installed on the corresponding side wall of the square cylinder, and a movable rod of the electric telescopic rod is fixedly connected with the corresponding gate.

According to the concrete waste recycling device for civil engineering subway construction, the vertical pipe is installed in the feed inlet in a matched mode, the conveying auger is arranged in the vertical pipe, and the lower end of the auger shaft of the conveying auger is fixedly connected with the upper end of the second lead screw.

According to the concrete waste recycling device for civil engineering subway construction, the stirring blades are uniformly and fixedly mounted on the outer ring of the lower end of the second rotating shaft, the bottoms of the stirring blades are in contact fit with the top surface of the second filter plate, the side wall of the cylinder corresponds to the second filter plate and is provided with the second inclined hole, the second inclined hole is located on the upper side of the second filter plate, and the outer end of the second inclined hole is fixedly matched with the drain valve.

According to the concrete waste recycling device for civil engineering subway construction, the power device comprises a motor, a first gear and a second gear, the first gear is fixedly sleeved on the outer ring of the lower end of the first rotating shaft and located on the lower side of the sealing plate, the motor with an upward output shaft is fixedly installed on one side of the bottom in the cylinder, the second gear is fixedly sleeved on the output shaft of the motor, and the second gear is meshed with the first gear.

The invention has the advantages that: when the concrete waste is required to be recycled by using the invention, a certain amount of water is poured into the square barrel, the water passes through the funnel and then continuously passes through the second filter plate to enter the upper cavity of the barrel, then the concrete waste is poured into the square barrel, then the power device is started to drive the first rotating shaft to rotate clockwise, the first rotating shaft drives the first screw rod, the second rotating shaft and the second screw rod to rotate clockwise, the second screw rod is in threaded connection with the connecting plate, the connecting plate moves upwards in the second chute when the second screw rod rotates clockwise, the movable plates of the telescopic plates stretch, the telescopic plates on the left side and the right side incline downwards in the direction far away from the connecting plate, so that the concrete falls onto the upper sides of the movable plates along the telescopic plates, and the first screw rod is in matched connection with the first screw rod joint, when the first screw rod rotates clockwise, the first screw rod joint drives the first piston block to move upwards, the inner cavity between the first piston block and the sealing plate generates negative pressure, so that the inner cavity sucks water in the cavity at the upper end of the cylinder into the inner cavity through the one-way water inlet valve, the power device drives the first rotating shaft to rotate clockwise for a certain time, then the power device is controlled to drive the first rotating shaft to rotate anticlockwise, the connecting plate drives the inner end of the expansion plate to move downwards, so that concrete rolls along the inclined direction of the expansion plate, meanwhile, the first screw rod connector pushes the first piston block downwards, so that the first piston block extrudes the water into the annular hole through the one-way water outlet valve, and then the water is sprayed out from each universal nozzle, the sprayed water washes the concrete on the expansion plate, so that broken stones, sand and slurry are separated, and meanwhile, the power device controls the first rotating shaft to rotate intermittently and positively and negatively, so that the connecting plate drives the expansion plate to move up and down in a reciprocating manner, thereby make the concrete of expansion plate upside roll about continuous, when the concrete rolls on one side, on one side by the water washing of spun in the universal shower nozzle, thereby make rubble in the concrete, the sand, the muddy water is separated, muddy water enters into the upper portion cavity of drum through the first filtration pore of crossing on the expansion plate, muddy water is stopped when passing the second filter, water then enters into the upside cavity of first piston piece, thereby make first piston piece can take out water when extrudeing downwards, rubble and sand then stay the upside at the expansion plate, along with the reciprocal upwards downward sloping of expansion plate, rubble and the continuous and sand screening device of sand take place the contact, sand after the washing passes through the sand screening device and gets into in the first inclined hole, only remain the rubble at the expansion plate upside at last, after the concrete separation finishes, take out the sand earlier, then open the sand screening device, thereby make the connecting plate upward movement to the upper end of second lead screw thereby make the expansion plate towards keeping away from the connecting plate One side of the telescopic plate is inclined, so that the broken stones on the telescopic plate are poured out; the first function is to reciprocate the concrete left and right along the inclined direction of the expansion plate through the vertical reciprocating motion of the connecting plate, so that the sewage in the concrete smoothly passes through the first filtering hole; the second function is that when the connecting plate drives the expansion plate to move downwards to impact water in the funnel and the square cylinder, sewage in the funnel and the square cylinder is vibrated, so that the second filter plate has the function of preventing dirt from depositing on the upper side of the second filter plate to block the second filter plate; function its third is through first screw joint's up-and-down motion can be with the filterable water suction to first piston piece downside in the drum when making first piston piece upward movement, when first screw joint area first piston piece downstream, first piston piece is spun in extruding the universal shower nozzle of the water in its downside cavity, thereby wash the concrete on the expansion plate, and because the concrete on the expansion plate is reciprocating motion about, thereby make the interior spun water of universal shower nozzle carry out comprehensive washing to the concrete, make the composition matter separation effect of concrete better.

Drawings

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

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion of FIG. 1 from direction A; FIG. 3 is an enlarged view of I of FIG. 1; FIG. 4 is an enlarged view of II of FIG. 1; fig. 5 is an enlarged view of iii of fig. 2.

Detailed Description

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

A concrete waste recovery device for civil engineering subway construction comprises a square tube 1 with an opening at the lower end, a feed inlet 25 is arranged at the top of the square tube 1, a funnel 2 is fixedly connected to the bottom of the square tube 1, the upper end opening of the funnel 2 is rectangular, the lower end opening of the funnel 2 is circular, a cylinder 3 with an opening at the upper end is fixedly connected to the bottom of the funnel 2, a sealing plate 4 is fixedly matched and installed on the inner wall of the lower end of the cylinder 3, a vertical first rotating shaft 5 is connected to the center of the bottom of the cylinder 3 through a bearing, the first rotating shaft 5 is driven by a power device, a first lead screw 46 is fixedly connected to the upper end of the first rotating shaft 5 after the upper end of the first rotating shaft 5 upwards passes through the sealing plate 4, the first rotating shaft 5 is in sealing connection with the sealing plate 4, a first piston block 6 is sleeved on the outer ring of the upper end of the first rotating shaft 5, the first piston block 6 is connected with the first rotating shaft 5 through a sealing ring, a first lead screw joint 7 is sleeved on the first lead screw 46 in a matching manner, the inner side wall of the cylinder 3 is bilaterally symmetrically provided with vertical first chutes 8, first sliding blocks 9 are installed in the first chutes 8 in a matching manner, one ends of the two first sliding blocks 9 are connected with the corresponding first chutes 8 in a sliding fit manner, the other ends of the two first sliding blocks 9 are fixedly connected with a first lead screw connector 7, the bottoms of the first sliding blocks 9 are fixedly connected with the top of a first piston block 6 through connecting rods, the upper end of a first lead screw 46 is fixedly connected with a second rotating shaft 35, the outer ring of the second rotating shaft 35 is sleeved with a second filter plate 22, the second filter plate 22 is fixedly connected with the inner wall of the upper end of the cylinder 3 in a sealing manner, the second filter plate 22 is connected with the second rotating shaft 35 through a sealing bearing, the second filter plate 22 is positioned on the upper side of the first piston block 6, the side wall of the cylinder 3 between the second filter plate 22 and the first piston block 6 is provided with a second through hole 23, the upper end of the second rotating shaft 35 is fixedly connected with a second lead screw 10, the second screw rod 10 is positioned inside the square tube 1, the front side wall and the rear side wall of the square tube 1 are symmetrically provided with vertical second chutes 12, the front second chute 12 and the rear second chute 12 are provided with a same connecting plate 11 in a sliding fit manner, the center of the plate surface of the connecting plate 11 is provided with a threaded hole, the second screw rod 10 passes through the threaded hole on the connecting plate 11 and is in threaded fit connection with the threaded hole, the left side wall and the right side wall of the connecting plate 11 are symmetrically hinged with expansion plates 13, the inner ends of the expansion plates 13 are hinged with the connecting plate 11, the outer ends of the expansion plates 13 are respectively hinged with the inner walls of the corresponding square tube 1, the movable plate surface of the expansion plates 13 is uniformly provided with a plurality of vertical first filtering holes 14, the two expansion plates 13 and the plate surface of the connecting plate 11 can block the inner cavity of the square tube 1 together, the middle parts of the left side wall and the right side wall of the square tube 1 are symmetrically provided with downward first inclined holes 15, the first inclined holes 15 are positioned at the upper side of the expansion plates 13, the sand screening device capable of being opened is arranged in each first inclined hole 15, first through holes 16 are symmetrically formed in the left and right sides of the side wall of the cylinder 3 close to the top of the sealing plate 4, the first through holes 16 are located on the lower side of the first piston block 6, a one-way water inlet valve 18 is installed at the outer end of the first through hole 16 on the right side in a matched mode, the one-way water inlet valve 18 is fixedly connected and communicated with a second through hole 23 through a second connecting pipe 24, a one-way water outlet valve 17 is installed at the outer end of the first through hole 16 on the left side in a matched mode, an annular hole 19 is formed in the inner portion of the side wall of the upper end of the square tube 1, the annular hole 19 is located on the upper side of the first inclined hole 15, the annular hole 19 is fixedly connected and communicated with the one-way water outlet valve 17 through a first connecting pipe 20, a plurality of universal nozzles 21 are evenly and fixedly connected and communicated with the inner side of the annular hole 19, and the universal nozzles 21 are located in the square tube 1. When the concrete waste is required to be recycled by using the invention, a certain amount of water is poured into the square barrel 1, the water continuously passes through the second filter plate 22 after passing through the funnel 2 and enters the upper cavity of the cylinder 3, then the concrete waste is poured into the square barrel 1, then the power device is started to drive the first rotating shaft 5 to rotate clockwise, the first rotating shaft 5 drives the first screw 46, the second rotating shaft 35 and the second screw 10 to rotate clockwise, the second screw 10 is in threaded connection with the connecting plate 11, the connecting plate 11 moves upwards in the second chute 12 when the second screw 10 rotates clockwise, the movable plates of the telescopic plates 13 extend, the telescopic plates 13 on the left side and the right side are inclined downwards towards the direction far away from the connecting plate 11, so that the concrete falls to the upper sides of the movable plates along the telescopic plates 13, and the first screw 46 is in matched connection with the first screw joint 7, when the first lead screw 46 rotates clockwise, the first lead screw joint 7 drives the first piston block 6 to move upwards, the inner cavity between the first piston block 6 and the sealing plate 4 generates negative pressure, so that the inner cavity sucks water in the cavity at the upper end of the cylinder 3 through the one-way water inlet valve 18, the power device drives the first rotating shaft 5 to rotate clockwise for a certain time, then the power device is controlled to drive the first rotating shaft 5 to rotate anticlockwise, the connecting plate 11 drives the inner end of the expansion plate 13 to move downwards, so that concrete rolls along the inclined direction of the expansion plate 13, meanwhile, the first lead screw joint 7 pushes the first piston block 6 downwards, so that the first piston block 6 extrudes water into the annular hole 19 through the one-way water outlet valve 17, and then the water is sprayed out of the universal nozzles 21, and the sprayed water washes the concrete on the expansion plate 13, so that crushed stone is crushed, The sand and the slurry are separated, meanwhile, the first rotating shaft 5 is driven to intermittently rotate forward and backward by the control of a power device, so that the connecting plate 11 drives the expansion plate 13 to do up-and-down reciprocating motion, the concrete on the upper side of the expansion plate 13 continuously rolls left and right, the concrete is washed by the water sprayed from the universal spray head 21 while rolling, so that the broken stone, the sand and the muddy water in the concrete are separated, the muddy water enters the upper cavity of the cylinder 3 through the first filtering holes 14 on the expansion plate 13, the mud is blocked when the muddy water passes through the second filtering plate 22, the water enters the upper cavity of the first piston block 6, the water can be pumped out by the first piston block 6 when the first piston block is extruded downwards, the broken stone and the sand are left on the upper side of the expansion plate 13, and along with the reciprocating upward and downward inclination of the expansion plate 13, the broken stone and the sand are continuously contacted with a sand screening device, the cleaned sand enters the first inclined hole 15 through the sand screening device, and finally only broken stones remain on the upper side of the expansion plate 13, after concrete separation is completed, the sand is taken out firstly, then the sand screening device is opened, and then the connecting plate 11 moves upwards to the upper end of the second screw 10, so that the expansion plate 13 inclines towards one side far away from the connecting plate 11, and the broken stones on the expansion plate 13 are poured out; the invention has reasonable design, realizes a plurality of functions by driving the first rotating shaft 5 to rotate through one power device, has more compact structure and is convenient for installation and later maintenance work, and one of the functions is to make the concrete reciprocate left and right along the inclined direction of the expansion plate 13 through the up-and-down reciprocating motion of the connecting plate 11, so that the sewage in the concrete smoothly passes through the first filtering hole 14; the second function is that when the connecting plate 11 drives the expansion plate 13 to move downwards to impact water in the funnel 2 and the square tube 1, sewage in the connecting plate vibrates, so that the sewage is prevented from depositing on the upper side of the second filter plate 22 to block the second filter plate; function its third is that the up-and-down reciprocating motion through first screw joint 7 makes first piston piece 6 during upward movement can be with the filterable water suction to first piston piece 6 downside in the drum 3, when first screw joint 7 area first piston piece 6 downstream, first piston piece 6 is spun in extruding the universal shower nozzle 21 with the water in its downside cavity, thereby wash the concrete on the expansion plate 13, and because the concrete on the expansion plate 13 is reciprocating motion about, thereby make the interior spun water of universal shower nozzle 21 can carry out comprehensive washing to the concrete, make the composition material separation effect of concrete better.

Specifically, as shown in the figure, the expansion plate 13 described in this embodiment is composed of a movable plate 26 and a fixed sleeve 28, a second piston block 27 is installed in the fixed sleeve 28 in a matching manner, the movable plate 26 is fixedly installed at one end of the second piston block 27 far away from the connecting plate 11, first filter holes 14 are uniformly distributed on the plate surface of the movable plate 26, transverse blind holes 51 are respectively formed in the positions, corresponding to every two rows of the first filter holes 14, of the second piston block 27 and the movable plate 26, channels 52 are formed between the blind holes 51 and the corresponding first filter holes 14 and are communicated with each other, and fourth filter plates 31 are fixedly installed in the channels 52 at positions, close to the first filter holes 14. When the movable plate 26 of the expansion plate 13 extends out of the fixed sleeve 28, the inner cavity between the second piston block 27 and the inner bottom of the fixed sleeve 28 is enlarged and negative pressure is generated in the inner cavity, because the blind hole 52 is communicated with the corresponding first filtering hole 14 through the channel 52, water and sludge continuously pass through the first filtering hole 14, so that the inner cavity between the second piston block 27 and the inner bottom of the fixed sleeve 28 sucks water, the sludge is blocked by the fourth filtering plate 31, when the movable plate 26 of the expansion plate 13 is extruded into the fixed sleeve 28, the water in the fixed sleeve 28 is sprayed out of the blind hole 51 and each channel 52 to clean all the first filtering holes 14, and the phenomenon that the first filtering holes 14 are blocked is effectively prevented.

Specifically, as shown in the drawings, the ends of the fixing sleeves 28 far away from the connecting plate 11 are fixedly provided with scrapers 40, and the bottoms of the scrapers 40 are in contact fit with the top surfaces of the corresponding movable plates 26. The scraper 40 scrapes dirt on the top surface of the movable plate 26 once every time the movable plate 26 and the fixed sleeve 28 move relatively, so that the first filter holes 14 are not easily blocked.

Further, as shown in the figure, the sand sieving device described in this embodiment includes two gates 30, two gate opening and closing devices, a third filter 32, the gate 30 is equipped with in the cooperation of both ends all about first inclined hole 15, the gate 30 can block first inclined hole 15 is sealed, the gate 30 middle part that is located the square tube 1 inboard corresponds first inclined hole 15 opening, the gate 30 that is located the square tube 1 inboard is open-ended internal fixation cooperation installation third filter 32, the equal fixed mounting of upside of all gates 30 has a gate opening and closing device. When the expansion plate 13 throws the primarily separated concrete to the surface of the third filter plate 32, the cleaned sand in the concrete passes through the third filter plate 32 and enters the first inclined hole 15, the broken stone in the concrete is thrown and stays on the expansion plate 13, after the separation of the sand and the broken stone in the concrete is finished, the gate 30 on the outer side of the square tube 1 is opened through the gate opening and closing device, so that the sand in the first inclined hole 15 is discharged along the inclined hole, then all the gates 30 are opened, the broken stone on the expansion plate 13 is discharged along the first inclined hole 15, and after the separated broken stone and the sand are respectively discharged, all the gates 30 are closed by controlling the gate opening and closing device, so that the concrete is recovered and treated again.

Furthermore, as shown in the figure, the gate opening and closing device according to the embodiment is an electric telescopic rod 33, a fixed rod of the electric telescopic rod 33 is fixedly installed on a corresponding side wall of the square tube 1, and a movable rod of the electric telescopic rod 33 is fixedly connected with a corresponding gate 30. The gate 30 is opened and closed through the electric telescopic rod 33, the operation is simple and fast, and the labor is saved.

Furthermore, as shown in the figure, a vertical pipe 50 is fittingly installed in the feeding port 25, a conveying auger 34 is installed in the vertical pipe 50, and the lower end of an auger shaft of the conveying auger 34 is fixedly connected with the upper end of the second lead screw 10. Before the concrete is put into the square barrel 1, the concrete and water are mixed and poured into the vertical pipe 50, the conveying auger 34 on the inner side of the vertical pipe 50 conveys the concrete to the inside of the square barrel 1 and simultaneously enables the concrete and the water to be fully and rotatably stirred, and accordingly broken stones, sand and mud in the concrete are preliminarily separated.

Furthermore, as shown in the figure, the outer ring of the lower end of the second rotating shaft 35 is uniformly and fixedly provided with the stirring blade 36, the bottom of the stirring blade 36 is in contact fit with the top surface of the second filter plate 22, the side wall of the cylinder 3 is provided with a second inclined hole 37 corresponding to the second filter plate 22, the second inclined hole 37 is located on the upper side of the second filter plate 22, and the outer end of the second inclined hole 37 is fixedly provided with the blowoff valve 38 in a fit manner. Drive second pivot 35 rotatory when power device drives first pivot 5 rotatory, second pivot 35 drives stirring vane 36 and rotates the stirring, prevent that the easy sediment of mud of separating in the concrete from leading to blockking up second filter 22, and stirring vane 36 is continuous scrapes the mud at second filter 22 top with the adhesion, thereby make second filter 22 be difficult to more blockked up, when needs blowdown, open blowoff valve 38, thereby control stirring vane 36 is rotatory to pass through the second inclined hole 37 with mud and discharge.

Furthermore, as shown in the figure, the power device according to the embodiment includes a motor 41, a first gear 42, and a second gear 43, the first gear 42 is fixedly sleeved on the outer ring of the lower end of the first rotating shaft 5, the first gear 42 is located on the lower side of the sealing plate 4, the motor 41 with an upward output shaft is fixedly installed on one side of the bottom inside the cylinder 3, the second gear 43 is fixedly sleeved on the output shaft of the motor 41, and the second gear 43 is engaged with the first gear 42. The first rotating shaft 5 is driven to rotate through the structural combination of the motor and the gear, so that the first rotating shaft 5 can rotate more stably.

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

Claims

1. The utility model provides a civil engineering is concrete waste recovery device for subway construction which characterized in that: comprises a square tube (1) with an opening at the lower end, a feed inlet (25) is arranged at the top of the square tube (1), a funnel (2) is fixedly connected to the bottom of the square tube (1), the upper end opening of the funnel (2) is rectangular, the lower end opening of the funnel (2) is circular, a cylinder (3) with an opening at the upper end is fixedly connected to the bottom of the funnel (2), a sealing plate (4) is fixedly matched and installed on the inner wall of the lower end of the cylinder (3), a vertical first rotating shaft (5) is connected to the center of the bottom of the cylinder (3) through a bearing, the first rotating shaft (5) is driven by a power device, a first lead screw (46) is fixedly connected to the upper end of the first rotating shaft (5) after the first rotating shaft upwards penetrates through the sealing plate (4), the first rotating shaft (5) is hermetically connected with the sealing plate (4), a first piston block (6) is sleeved on the outer ring at the upper end of the first rotating shaft (5), the first piston block (6) is connected with the first rotating shaft (5) through a sealing ring, the first screw rod (46) is sleeved with a first screw rod connector (7) in a matching manner, vertical first sliding chutes (8) are symmetrically arranged on the left side and the right side of the inner side wall of the cylinder (3), first sliding blocks (9) are installed in the first sliding chutes (8) in a matching manner, one ends of the two first sliding blocks (9) are connected with the corresponding first sliding chutes (8) in a sliding fit manner, the other ends of the two first sliding blocks (9) are fixedly connected with the first screw rod connector (7), the bottoms of the first sliding blocks (9) are fixedly connected with the top of a first piston block (6) through connecting rods, the upper end of the first screw rod (46) is fixedly connected with a second rotating shaft (35), a second filter plate (22) is sleeved on the outer ring of the second rotating shaft (35), the second filter plate (22) is fixedly connected with the inner wall of the upper end of the cylinder (3) in a sealing manner, and the second filter plate (22) is connected with the second rotating shaft (35) through a sealing bearing, the second filter plate (22) is positioned at the upper side of the first piston block (6), the side wall of the cylinder (3) between the second filter plate (22) and the first piston block (6) is provided with a second through hole (23), the upper end of the second rotating shaft (35) is fixedly connected with a second lead screw (10), the second lead screw (10) is positioned inside the square cylinder (1), the front side wall and the rear side wall of the square cylinder (1) are symmetrically provided with vertical second chutes (12), the front and the rear second chutes (12) are internally provided with the same connecting plate (11) in sliding fit, the center of the surface of the connecting plate (11) is provided with a threaded hole, the second lead screw (10) passes through the threaded hole on the connecting plate (11) and is in threaded fit connection with the threaded hole, the left side wall and the right side wall of the connecting plate (11) are symmetrically hinged with expansion plates (13), the inner ends of the expansion plates (13) are hinged with the connecting plate (11), the outer ends of the expansion plates (13) are respectively hinged with the inner walls of the corresponding square cylinders (1), a plurality of vertical first filtering holes (14) are uniformly formed in the surface of a movable plate of each expansion plate (13), the surfaces of the two expansion plates (13) and a connecting plate (11) can block an inner cavity of a square tube (1) together, first inclined holes (15) which are inclined downwards are symmetrically formed in the middle of the left side wall and the right side wall of the square tube (1), the first inclined holes (15) are located on the upper side of the expansion plates (13), openable sand screening devices are arranged in the first inclined holes (15), first through holes (16) are symmetrically formed in the left side position and the right side position, close to the top of a sealing plate (4), of the side wall of a cylinder (3), the first through holes (16) are located on the lower side of a first piston block (6), one-way water inlet valves (18) are installed in the outer ends of the first through holes (16) on the right side in a matched mode, the one-way water inlet valves (18) and the second through holes (23) are fixedly connected and communicated through second through valves (24), one-way water outlet valves (17) are installed in the outer ends of the first through holes (16) on the left side in a matched mode, annular hole (19) have been seted up to the lateral wall inside of square tube (1) upper end, and annular hole (19) are located the upside of first inclined hole (15), through first connecting pipe (20) fixed connection and intercommunication between annular hole (19) and one-way outlet valve (17), and the even fixed connection and the intercommunication of inboard of annular hole (19) have several universal shower nozzle (21), and universal shower nozzle (21) all are located the inside of square tube (1).

2. The concrete waste recycling device for civil engineering subway construction according to claim 1, characterized in that: expansion plate (13) by a fly leaf (26), a fixed cover (28) are constituteed, fixed cover (28) fit in installation second piston piece (27), one end fixed mounting fly leaf (26) of connecting plate (11) are kept away from in second piston piece (27), the face evenly distributed of fly leaf (26) has first filtration hole (14), horizontal blind hole (51) have all been seted up to the inside of second piston piece (27) and fly leaf (26) and correspond every two rows of first filtration hole (14) between the position, passageway (52) intercommunication each other has been seted up to blind hole (51) and correspond between first filtration hole (14), be close to the equal fixed mounting fourth filter (31) in position of first filtration hole (14) in passageway (52).

3. The concrete waste recycling device for civil engineering subway construction according to claim 2, characterized in that: the scraper plates (40) are fixedly mounted at one ends, far away from the connecting plate (11), of the fixing sleeves (28), and the bottoms of the scraper plates (40) are in contact fit with the top surfaces of the corresponding movable plates (26).

4. The concrete waste recycling device for civil engineering subway construction according to claim 1, characterized in that: the sand screening device comprises two gates (30), two gate opening and closing devices and a third filter plate (32), wherein the gates (30) are arranged at the left end and the right end of a first inclined hole (15) in a matched mode, the first inclined hole (15) can be blocked in a sealed mode by the gates (30), the middle of the gate (30) located on the inner side of a square tube (1) corresponds to an opening of the first inclined hole (15), the third filter plate (32) is fixedly matched and installed in the opening of the gate (30) located on the inner side of the square tube (1), and the gate opening and closing devices are fixedly installed on the upper sides of all the gates (30).

5. The concrete waste recycling device for civil engineering subway construction according to claim 4, characterized in that: the gate opening and closing device is an electric telescopic rod (33), a fixed rod of the electric telescopic rod (33) is fixedly installed on the corresponding side wall of the square barrel (1), and a movable rod of the electric telescopic rod (33) is fixedly connected with the corresponding gate (30).

6. The concrete waste recycling device for civil engineering subway construction according to claim 1, characterized in that: feed inlet (25) fit in and install standpipe (50), be equipped with in standpipe (50) and carry auger (34), carry the auger axle lower extreme of auger (34) and the upper end fixed connection of second lead screw (10).

7. The concrete waste recycling device for civil engineering subway construction according to claim 1, characterized in that: the even fixed mounting in lower extreme outer lane of second pivot (35) have stirring vane (36), the bottom of stirring vane (36) and the top surface contact cooperation of second filter (22), second inclined hole (37) have been seted up to the lateral wall of drum (3) corresponding second filter (22), second inclined hole (37) are located the upside of second filter (22), blowoff valve (38) are installed to the outer end fixed cooperation of second inclined hole (37).

8. The concrete waste recycling device for civil engineering subway construction according to claim 1, characterized in that: the power device comprises a motor (41), a first gear (42) and a second gear (43), the first gear (42) is fixedly sleeved on the outer ring of the lower end of the first rotating shaft (5), the first gear (42) is located on the lower side of the sealing plate (4), the motor (41) with an upward output shaft is fixedly installed on one side of the bottom in the cylinder (3), the second gear (43) is fixedly sleeved on the output shaft of the motor (41), and the second gear (43) is meshed with the first gear (42).