CN116870559B

CN116870559B - Construction wastewater treatment device

Info

Publication number: CN116870559B
Application number: CN202311147562.4A
Authority: CN
Inventors: 陈尾凤; 李彬彬; 杨向超
Original assignee: Dezhou Yugong Environmental Protection Equipment Co ltd
Current assignee: Dezhou Yugong Environmental Protection Equipment Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2023-11-24
Anticipated expiration: 2043-09-07
Also published as: CN116870559A

Abstract

The application belongs to the technical field of filtration and separation, and particularly relates to a construction wastewater treatment device which comprises a shell, a filter press plate and an end cover; the filter press plate is arranged in the shell and used for press filtering sewage, the end cover is arranged at the lower position of the shell and can be unscrewed or screwed, the end cover is provided with a discharge through hole, and impurities filtered out of the shell can be discharged from the discharge through hole after the end cover is unscrewed. Impurities in the shell can be discharged from the discharge through hole of the end cover, so that the problem that impurities cannot be discharged out of the shell in the prior art, and further the follow-up normal use of the wastewater treatment equipment is affected is avoided.

Description

Construction wastewater treatment device

Technical Field

The application belongs to the technical field of separation and filtration, and particularly relates to a construction wastewater treatment device.

Background

The filtering device can filter impurities in the sewage. A large amount of wastewater is generated in the building construction process, and the wastewater contains a large amount of suspended matters, sediment and other substances, and if the wastewater is directly discharged without filtering treatment, the wastewater can cause damage to surrounding water, soil and other environments. It is necessary to filter the sediment and suspended matter contained in the slurry.

In the prior art, as chinese patent CN115920486B discloses a construction wastewater treatment device, it includes shell, filter vat and clearance scraper blade, can filter the impurity in the sewage through filter vat and clearance scraper blade, but the impurity after its filtration is piled up at the inside inconvenient discharge of shell easily, influences the follow-up use of device.

Disclosure of Invention

Based on the above, it is necessary to provide a construction wastewater treatment apparatus for solving the problem that the conventional wastewater treatment apparatus cannot discharge filtered impurities out of a housing, thereby affecting the subsequent normal use of the wastewater treatment apparatus.

The above purpose is achieved by the following technical scheme:

a construction wastewater treatment device comprises a shell, a filter press plate and an end cover; the housing has a first end and a second end in communication with each other, the first end being located above the second end; the outer edge of the filter pressing plate is arranged on the inner wall of the first end in a vertically sliding and sealing manner, and the filter pressing plate moves downwards relative to the first end and can press and filter sewage in the first end; a discharge hole is arranged below the second end part; the end cover is in threaded fit with the discharge hole, can move along the axial direction of the discharge hole in the rotation process of the end cover, is hollow, is communicated with the second end part, and is communicated with the first end part; a discharge through hole is formed in the vertical face of the bottom of the end cover; the end cover is provided with a first matching position and a second matching position relative to the discharge hole, when the end cover is in the first matching position, the inner wall of the discharge hole seals the discharge through hole, and when the end cover is in the second matching position, the inner space of the end cover is communicated with the outer space through the discharge through hole; the filter pressing plate moves downwards to enable impurities in the first end part to be filter pressed into the second end part and the end cover, the end cover is switched to the second matching position, and the impurities are discharged out of the shell from the discharge through hole.

Further, the construction wastewater treatment device further comprises a threaded rod vertically arranged in the shell and coaxial with the second end part; the threaded rod penetrates through the filter pressing plate; the threaded rod can be in anti-rotation fit with the end cover, the threaded rod rotates to drive the end cover to rotate, and the end cover is switched to the second fit position from the first fit position or is switched to the first fit position from the second fit position through rotation.

Further, a sliding hole is vertically formed in the lower end of the threaded rod, a sliding rod is slidably mounted in the sliding hole, a first elastic piece capable of stretching and rebounding is vertically mounted in the sliding hole, the first elastic piece exerts acting force on the sliding rod to enable the sliding rod to extend out of the sliding hole, and the threaded rod is in rotation-stopping fit with the end cover through the sliding rod; the sliding rod is in rotation-stopping fit with the inner wall of the sliding hole.

Further, a butt joint rod is vertically fixedly connected in the end cover, and the butt joint rod and the sliding rod are coaxially arranged; the sliding rod is in anti-rotation fit with the butt joint rod.

Further, the shell further comprises a third end part, wherein the third end part is of a truncated cone-shaped shell structure with a large upper part and a small lower part and is fixedly connected between the first end part and the second end part; the building construction wastewater treatment device also comprises a conical sleeve, wherein the conical sleeve is a round table-shaped shell with a large upper part and a small lower part, the upper end and the lower end of the conical sleeve are provided with openings, the conical sleeve is fixedly connected to the lower end of the threaded rod, and meanwhile, the conical sleeve is positioned below the filter pressing plate; the threaded rod moves downwards to drive the conical sleeve to move downwards, and the conical sleeve can be matched with the first end part and the third end part in sequence in the downward movement process; the conical sleeve is in anti-rotation fit with the first end, the conical sleeve is in rotation fit with the third end, and the outer wall of the conical sleeve can be abutted against the inner wall of the third end; the third end part is provided with a liquid inlet channel, and the third end part can be communicated with the outside through the liquid inlet channel; the tapered sleeve seals the liquid inlet channel when abutting against the third end portion.

Further, the construction wastewater treatment device also comprises a long gear, a first rack, a second rack and a first gear; the threaded rod penetrates through the filter pressing plate, and the filter pressing plate can slide up and down relative to the threaded rod; the first rack is vertically fixedly connected to the upper surface of the filter press plate, and the first gear is rotatably arranged in the shell through a shaft body; the first gear is meshed with the first rack; the long gear is in threaded fit with the threaded rod, and the long gear is positioned above the filter pressing plate; the second rack is an L-shaped structure formed by a horizontal rod body and a vertical rack, the horizontal rod body is rotatably arranged on the long gear, the vertical rack is meshed with the first gear, and the vertical rack is always meshed with the first gear in the rotation process of the long gear; the friction force between the filter pressing plate and the first end is greater than the friction force between the conical sleeve and the first end.

Further, the construction wastewater treatment device also comprises a motor and a second gear; the motor is fixedly connected to the upper end of the shell, the second gear is fixedly connected to the output end of the motor, and the second gear is meshed with the long gear; the thickness of the long gear in the vertical direction is greater than the length of the vertical rack of the second rack.

Further, the inner wall of the discharge hole is divided into a first matching part, a second matching part and a third matching part from bottom to top in sequence; the end cover is provided with a threaded part and a ring body part; the first matching part is provided with threads, and the end cover is in threaded fit with the first matching part; a telescopic shell is fixedly connected to the side wall of the ring body part, a telescopic head is horizontally and movably arranged in the telescopic shell, a second elastic piece capable of stretching and rebounding is arranged in the telescopic shell, the second elastic piece can apply acting force to the telescopic head, so that the telescopic head stretches out of the telescopic shell, and the telescopic head stretches out of the telescopic shell and can be abutted against the inner wall of the second matching part or the third matching part; the second matching part is a truncated cone-shaped cavity structure with a small diameter at the upper part and a large diameter at the lower part, and the third matching part is a truncated cone-shaped cavity structure with a small diameter at the lower part and a large diameter at the upper part; the first matching part, the second matching part and the third matching part are coaxially arranged; the included angle between the side face of the second matching part and the vertical direction is smaller than the included angle between the side face of the third matching part and the vertical direction.

Further, a guide groove is formed in the upper end face of the threaded portion, and the guide groove is communicated with the outside and the inside of the threaded portion.

Further, a cross protrusion is arranged on the lower end face of the sliding rod, a cross groove is arranged on the upper end face of the butt joint rod, and the cross protrusion is matched with the cross groove.

Or (b)

The sliding rod is characterized in that a cross groove is formed in the lower end face of the sliding rod, a cross protrusion is arranged on the upper end face of the butt joint rod, and the cross protrusion is matched with the cross groove.

The beneficial effects of the application are as follows:

1. impurities in the shell can be discharged from the discharge through hole of the end cover, so that the problem that impurities cannot be discharged out of the shell in the prior art, and further the follow-up normal use of the wastewater treatment equipment is affected is avoided.

2. When the end cover is at the second cooperation position, debris in the sewage can drop on the up end of end cover, and the end cover switches to the in-process of first cooperation position from the second cooperation position, and the end cover upwards moves, and debris can be crowded between the screw thread of first cooperation portion and end cover, gets into the screw thread cooperation effect that influences between first cooperation portion and the end cover, through the baffle box that sets up, can make debris between screw thread of first cooperation portion and the end cover get into screw thread portion inside from the baffle box after receiving the extrusion, and then prevent that debris from influencing the screw thread cooperation effect between first cooperation portion and the end cover.

3. The pressure filter plate, the conical sleeve and the end cover can be driven to move through the threaded rod and the long gear, so that the liquid inlet channel is plugged, the end cover is screwed and unscrewed to discharge impurities, reset and the like.

Drawings

FIG. 1 is a front view of a construction wastewater treatment apparatus according to an embodiment of the present application;

FIG. 2 is a schematic perspective view of a part of a construction wastewater treatment apparatus according to an embodiment of the present application;

FIG. 3 is a schematic perspective view of a construction wastewater treatment device according to an embodiment of the present application, in which the structures such as a housing are omitted;

FIG. 4 is a schematic perspective view of a construction wastewater treatment device according to an embodiment of the present application, including structures such as a filter press plate, a threaded rod, a long gear, and a tapered sleeve;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 1, showing the conical sleeve and press plate in an initial position;

FIG. 6 is a cross-sectional view of a construction wastewater treatment apparatus according to an embodiment of the present application, wherein an outer wall of a tapered sleeve abuts against an inner wall of a third end portion to block a liquid inlet channel;

FIG. 7 is a cross-sectional view of a construction wastewater treatment plant according to an embodiment of the present application, wherein the filter press plate abuts against the tapered sleeve;

FIG. 8 is a cross-sectional view of a construction wastewater treatment facility showing an end cap unscrewed and in a second mating position in accordance with an embodiment of the present application;

FIG. 9 is a partial enlarged view at B in FIG. 5;

FIG. 10 is a schematic perspective view of a part of a construction wastewater treatment device according to an embodiment of the present application, including threaded rods, tapered sleeves, and the like;

wherein:

100. a housing; 110. a first end; 120. a second end; 130. a third end; 140. a liquid inlet channel;

200. a discharge port; 210. a first mating portion; 220. a second mating portion; 230. a third mating portion;

300. a threaded rod; 310. a slide bar; 320. a first elastic member; 330. a conical sleeve;

400. a filter pressing plate;

500. an end cap; 510. a threaded portion; 520. a ring body portion; 530. a discharge through hole; 540. a butt joint rod; 550. a guide groove; 560. a second elastic member; 570. a telescoping housing; 580. a retractable head;

600. a long gear; 610. a first rack; 620. a second rack; 630. a first gear; 640. a second gear; 650. a motor;

700. cross-shaped bulges.

Detailed Description

The present application will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The construction wastewater treatment apparatus provided by the embodiment of the present application is described below with reference to fig. 1 to 10.

A construction wastewater treatment apparatus, which includes a housing 100, a filter press plate 400, and an end cap 500.

The housing 100 has a first end 110 and a second end 120 in communication with each other, the first end 110 being located above the second end 120; the outer edge of the filter press plate 400 is mounted on the inner wall of the first end 110 in a vertically sliding seal, and the filter press plate 400 moves downward relative to the first end 110 to press-filter the sewage in the first end 110. A discharge outlet 200 is provided below the second end 120. In detail, the first end 110 and the second end 120 of the housing 100 are each of a cylindrical sleeve structure having openings at both upper and lower ends, and the first end 110 and the second end 120 communicate with each other. The axis of the discharge opening 200 is in the vertical direction. The sewage in the housing 100 is at a position below the filter press plate 400, the filter press plate 400 moves downward to filter the sewage in the first end 110, and impurities in the sewage are filtered to a position below the filter press plate 400, and the filtered sewage is positioned above the filter press plate 400; a water pumping device is provided above the first end 110 of the housing 100, and is capable of pumping filtered sewage in the housing 100 out of the housing 100.

The end cover 500 is in threaded fit with the discharge port 200, and can move along the axial direction of the discharge port 200 in the rotation process of the end cover 500, the interior of the end cover 500 is hollow, the interior of the end cover 500 is communicated with the second end 120, and the second end 120 is communicated with the first end 110. The filtered impurities are pressed into the end cap 500 during the downward press movement of the press plate 400.

A discharge through hole 530 is arranged on the vertical surface at the bottom of the end cover 500; the end cap 500 has a first mating position and a second mating position with respect to the discharge port 200, and when the end cap 500 is in the first mating position, the inner wall of the discharge port 200 blocks the discharge through hole 530, and when the end cap 500 is in the second mating position, the inner space of the end cap 500 communicates with the outer space through the discharge through hole 530. The downward movement of the filter press plate 400 causes impurities in the first end 110 to press-filter into the second end 120 and the end cap 500, the end cap 500 switches to the second mating position, and impurities are discharged from the discharge through-holes 530 out of the housing 100.

The construction waste water treatment apparatus further includes a threaded rod 300, and the threaded rod 300 is vertically disposed within the housing 100 and coaxial with the second end 120.

Threaded rod 300 is threaded through filter press plate 400.

The threaded rod 300 can be in anti-rotation fit with the end cover 500, and the threaded rod 300 rotates to drive the end cover 500 to rotate, so that the end cover 500 is switched from the first fit position to the second fit position or from the second fit position to the first fit position through rotation. Specifically, the threaded rod 300 can move up and down relative to the housing 100, the end cover 500 is disposed on a path along which the threaded rod 300 moves up and down, the threaded rod 300 can move down to be in anti-rotation fit with the end cover 500 after being in abutment with the end cover 500, the anti-rotation fit can make the threaded rod 300 and the end cover 500 relatively stationary in a rotation direction, and when the threaded rod 300 is in anti-rotation fit with the end cover 500, the threaded rod 300 can be made to rotate to drive the end cover 500 to rotate.

The lower end of the threaded rod 300 is vertically provided with a sliding hole, a sliding rod 310 is slidably arranged in the sliding hole, a first elastic piece 320 capable of stretching and rebounding is vertically arranged in the sliding hole, and the first elastic piece 320 applies an acting force to the sliding rod 310 to enable the sliding rod 310 to extend out of the sliding hole. The sliding rod 310 is in anti-rotation fit with the inner wall of the sliding hole, so that the threaded rod 300 can rotate to drive the sliding rod 310 to rotate, specifically, the sliding rod 310 is matched with the sliding hole through a spline and a key groove, in some embodiments, the sliding rod 310 is provided with a spline and the inner wall of the sliding hole is provided with a key groove matched with the spline; in other embodiments, the sliding rod 310 is provided with a key groove and a spline matched with the key groove is fixedly connected on the inner wall of the sliding hole. By providing the first elastic member 320 and the sliding rod 310, when the threaded rod 300 and the tapered sleeve 330 move downward, the first elastic member 320 makes the sliding rod 310 extend out of the sliding hole, so that the sliding rod 310 is in a rotation-stopping fit with the end cover 500 in advance before the tapered sleeve 330 is separated from the first end 110; the first elastic member 320 lengthens the rotation-stopping engagement time of the sliding rod 310 with the cap 500 when the threaded rod 300 and the tapered sleeve 330 are moved upward.

A butt-joint rod 540 is vertically fixedly connected in the end cover 500, and the butt-joint rod 540 and the sliding rod 310 are coaxially arranged; the sliding bar 310 is in a non-rotational engagement with the docking bar 540.

The lower end surface of the sliding rod 310 is provided with a cross protrusion 700, the upper end surface of the docking rod 540 is provided with a cross groove, and the cross protrusion 700 is matched with the cross groove. In another embodiment, a cross groove is provided on the lower end surface of the sliding rod 310, and a cross protrusion 700 is provided on the upper end surface of the docking rod 540, and the cross protrusion 700 is engaged with the cross groove.

The sliding rod 310 and the docking rod 540 are in anti-rotation fit through the cross protrusion 700 and the cross groove, so that the sliding rod 310 rotates to drive the docking rod 540 to rotate.

The housing 100 further includes a third end 130, where the third end 130 is a truncated cone-shaped housing structure with a large top and a small bottom, and is fixedly connected between the first end 110 and the second end 120. Specifically, the third end 130 has different diameters at the upper and lower ends, and the large diameter end is located above the small diameter end.

The construction wastewater treatment device further comprises a conical sleeve 330, wherein the conical sleeve 330 is a round table-shaped shell with a large upper part and a small lower part, the upper end and the lower end of the conical sleeve 330 are provided with openings, the conical sleeve 330 is fixedly connected to the lower end of the threaded rod 300, and meanwhile, the conical sleeve 330 is positioned below the filter press plate 400.

The downward movement of the threaded rod 300 can drive the tapered sleeve 330 to move downward, and the tapered sleeve 330 can be matched with the first end 110 and the third end 130 in sequence during the downward movement. Specifically, initially, the tapered sleeve 330 is located in the first end 110, and the downward movement of the threaded rod 300 drives the tapered sleeve 330 to move downward, so that the tapered sleeve 330 slides from the first end 110 to the third end 130, and the outer wall of the tapered sleeve 330 abuts against the inner wall of the third end 130.

The tapered sleeve 330 is in a non-rotational engagement with the first end 110, the tapered sleeve 330 is in a rotational engagement with the third end 130 and an outer wall of the tapered sleeve 330 is capable of abutting an inner wall of the third end 130. Specifically, in some embodiments, the tapered sleeve 330 is provided with a key slot, the inner wall of the first end 110 is vertically provided with a guide key capable of being matched with the key slot, the tapered sleeve 330 is slidably matched with the guide key on the inner wall of the first end 110 through the key slot, and the tapered sleeve 330 and the first end 110 are relatively stationary in the rotation direction. In other embodiments, the inner wall of the first end 110 is vertically splined, and the tapered sleeve 330 is provided with a guide key that slidably engages the keyway.

The third end 130 is provided with a liquid inlet channel 140, and the third end 130 can be communicated with the outside through the liquid inlet channel 140; the tapered sleeve 330 seals off the feed channel 140 when abutting the third end 130. Specifically, the outer wall of the conical sleeve 330 abuts against the inner wall of the third end 130, so that the outer wall of the conical sleeve 330 seals the liquid inlet channel 140 formed on the third end 130, and the outer wall of the conical sleeve 330 prevents external sewage from entering the housing 100 from the liquid inlet channel 140. After the outer wall of the tapered sleeve 330 is separated from contact with the inner wall of the third end 130, the third end 130 is communicated with the external space through the liquid inlet channel 140, and external sewage can enter the third end 130 through the liquid inlet channel 140, i.e. external sewage can enter the housing 100 through the liquid inlet channel 140.

The liquid inlet channel 140 can be externally connected with other devices, such as a screen, a valve switch, a booster pump and/or the like.

The construction wastewater treatment apparatus further includes a long gear 600, a first rack 610, a second rack 620, and a first gear 630.

The threaded rod 300 is arranged through the filter pressing plate 400 in a penetrating way, and the filter pressing plate 400 can slide up and down relative to the threaded rod 300; the first rack 610 is vertically fixedly connected to the upper surface of the filter pressing plate 400, and the first gear 630 is rotatably installed in the housing 100 through a shaft body; the first gear 630 is engaged with the first rack 610. The filter press plate 400 is in rotation-stopping fit with the inner wall of the first end 110 through a spline, specifically, the filter press plate 400 is provided with a key groove, and the inner wall of the first end 110 is provided with a spline matched with the filter press plate 400; in some embodiments, the filter press plate 400 is provided with splines, and the inner wall of the first end 110 is provided with keyways that are in splined engagement with the filter press plate 400.

The long gear 600 is screw-engaged with the threaded rod 300, and the long gear 600 is located at an upper position of the filter press plate 400; the second rack 620 is an L-shaped structure formed by vertically fixedly connecting a horizontal rod body and a vertical rack, the horizontal rod body is rotatably installed on the long gear 600, the vertical rack is meshed with the first gear 630, and the vertical rack is always meshed with the first gear 630 in the rotation process of the long gear 600; specifically, a rotating ring is rotatably installed on the end face of the long gear 600, the rotating ring is sleeved on the threaded rod 300, the rotating ring and the long gear 600 are coaxial, the horizontal rod body is horizontally fixedly connected to the rotating ring, in some embodiments, the horizontal rod body is rotatably installed at the lower end of the long gear 600 through the rotating ring, and the vertical rack extends to the upper side of the horizontal rod body; in other embodiments, the horizontal rod is rotatably mounted at the lower end of the long gear 600 by a rotary ring, and the vertical rack extends downward of the horizontal rod. When the long gear 600 moves along the axial direction of the threaded rod 300 relative to the threaded rod 300, the second rack 620 can be driven to move along the axial direction of the threaded rod 300, the second rack 620 can drive the first gear 630 to rotate, and the first gear 630 rotates to drive the first rack 610 to move.

The friction force between the filter press plate 400 and the first end 110 is greater than the friction force between the tapered sleeve 330 and the first end 110.

Initially, the press plate 400 and the tapered sleeve 330 are positioned within the first end 110. The long gear 600 is in threaded fit with the threaded rod 300, and the long gear 600 and the threaded rod 300 can be mutually far away by forward rotation of the long gear 600 relative to the threaded rod 300; the threaded rod 300 applies an upward force to the long gear 600, and the long gear 600 applies a downward force to the threaded rod 300. The upward movement of the long gear 600 drives the second rack 620 to move upward, the upward movement of the second rack 620 drives the first rack 630 to rotate, the rotation of the first rack 630 drives the first rack 610 to move downward, the downward movement of the first rack 610 drives the filter press plate 400 to move downward, so that the upward movement of the long gear 600 can indirectly drive the filter press plate 400 to move downward through the first rack 610, the second rack 620 and the first rack 630, and in the same way, the upward movement trend of the long gear 600 due to the upward force is indirectly transmitted to the filter press plate 400, so that the downward movement trend of the filter press plate 400 is caused, the downward movement trend of the filter press plate 400 is caused by the upward reaction force exerted by the inner wall of the first end 110, the reaction force applied to the filter pressing plate 400 is transferred to the threaded rod 300 through the first rack 610, the second rack 620, the first gear 630 and the long gear 600, so that the threaded rod 300 receives a downward force, the threaded rod 300 is fixedly connected with the tapered sleeve 330, the tapered sleeve 330 receives a downward force applied by the threaded rod 300 and simultaneously receives an upward friction force applied by the first end 110, and since the friction force between the filter pressing plate 400 and the first end 110 is greater than the friction force between the tapered sleeve 330 and the first end 110, the tapered sleeve 330 and the threaded rod 300 move downward relative to the first end 110, and the tapered sleeve 330 moves downward to the third end 130, so that the tapered sleeve 330 is stationary in a vertical direction relative to the housing 100 when the outer wall of the tapered sleeve 330 is in contact with the inner wall of the third end 130. During the downward movement of the tapered sleeve 330 and threaded rod 300, the press plate 400 and the long pinion 600 are stationary in a vertical direction with respect to the housing 100. During the downward movement of the tapered sleeve 330, the sliding rod 310 and the docking rod 540 are in a rotationally locked engagement by the cross protrusion 700 and the cross recess.

The construction wastewater treatment apparatus further includes a motor 650 and a second gear 640; the motor 650 is fixedly connected to the upper end of the housing 100, the second gear 640 is fixedly connected to the output end of the motor 650, and the second gear 640 is meshed with the long gear 600; the thickness of the long gear 600 in the vertical direction is greater than the length of the vertical rack of the second rack 620.

Specifically, the motor 650 rotates in a reverse direction to drive the second gear 640 to rotate in a reverse direction, and the second gear 640 rotates in a reverse direction to drive the long gear 600 to rotate in a forward direction; the motor 650 rotates forward to drive the second gear 640 to rotate forward, and the second gear 640 rotates forward to drive the long gear 600 to rotate backward.

The inner wall of the discharge opening 200 is divided into a first fitting part 210, a second fitting part 220 and a third fitting part 230 in order from bottom to top.

The end cap 500 has a threaded portion 510 and a ring body portion 520.

The first fitting part 210 has threads, and the end cap 500 is screw-fitted with the first fitting part 210; the ring body part 520 is fixedly connected above the threaded part 510, the discharge through hole 530 is formed in the bottom vertical surface of the threaded part 510, the side wall of the ring body part 520 is fixedly connected with the telescopic shell 570, the telescopic head 580 is horizontally and dynamically arranged in the telescopic shell 570, meanwhile, the telescopic shell 570 is internally provided with a second elastic piece 560 capable of stretching and rebounding, the second elastic piece 560 can apply an acting force to the telescopic head 580, so that the telescopic head 580 stretches out of the telescopic shell 570, and the telescopic head 580 stretches out of the telescopic shell 570 and can be abutted against the inner wall of the second matching part 220 or the third matching part 230; specifically, during the forward rotation of the end cap 500, the end cap 500 moves downward relative to the housing 100, and during the downward movement of the end cap 500, the end cap 500 switches from the first mating position to the second mating position, and during the switching of the end cap 500 from the first mating position to the second mating position, the expansion head 580 will abut against the inner wall of the third end 130 and the inner wall of the second end 120 sequentially; the end cap 500 moves upward relative to the housing 100 during the reverse rotation of the end cap 500, and the end cap 500 moves upward to switch from the second mating position to the first mating position, and the expansion head 580 abuts against the inner wall of the second mating portion 220 and the inner wall of the third mating portion 230 sequentially during the upward movement of the end cap 500.

The second matching part 220 is a truncated cone-shaped cavity structure with a small diameter at the top and a large diameter at the bottom, and the third matching part 230 is a truncated cone-shaped cavity structure with a small diameter at the bottom and a large diameter at the top; the first engaging portion 210, the second engaging portion 220 and the third engaging portion 230 are coaxially opened; the included angle between the side surface of the second matching portion 220 and the vertical direction is smaller than the included angle between the side surface of the third matching portion 230 and the vertical direction, so that the friction force applied in the process that the telescopic head 580 is abutted against the inner wall of the third matching portion 230 to move downwards is greater than the friction force applied in the process that the telescopic head 580 is abutted against the inner wall of the second matching portion 220 to move upwards, and further the acting force applied by the end cover 500 when being switched from the first matching position to the second matching position is greater than the acting force applied by the end cover 500 when being switched from the second matching position to the first matching position.

A guide groove 550 is formed in the upper end face of the threaded portion 510, and the guide groove 550 is communicated with the outside and the inside of the threaded portion 510. In some embodiments, guide slots 550 are disposed in plurality along the axial direction of flight 510. Specifically, when the end cover 500 is at the second matching position, sundries in sewage can drop onto the upper end face of the end cover 500, the end cover 500 moves upwards in the process of switching from the second matching position to the first matching position, the sundries can be extruded between the threads of the first matching portion 210 and the end cover 500, the threaded matching effect between the first matching portion 210 and the end cover 500 is affected, and the impurities between the threads of the first matching portion 210 and the end cover 500 can enter the threaded portion 510 from the guide groove 550 after being extruded through the guide groove 550.

For ease of understanding, the following describes in detail the use of the device of the application.

(one) introducing sewage into the shell 100; (II) blocking the liquid inlet channel 140 by the conical sleeve 330; (III) the filter press plate 400 is used for carrying out filter press on sewage; (IV) discharging the filtered water out of the housing 100; (V) unscrewing the cap 500 to allow the filtered impurities to exit the cap 500; (six) screwing the end cap 500; (seventh), the press plate 400 and the tapered sleeve 330 are restored to the original positions.

Initially, the press plate 400 and tapered sleeve 330 are positioned over the first end 110; the end cap 500 is in the first mating position.

And (1) sewage is introduced into the outer shell 100:

external sewage enters the housing 100 through the inlet channel 140.

(II) blocking the feed channel 140 by the tapered sleeve 330:

the motor 650 is started, so that the motor 650 reversely rotates, the second gear 640 reversely rotates by the reverse rotation of the motor 650, the long gear 600 positively rotates by the reverse rotation of the second gear 640, the tapered sleeve 330 is in anti-rotation fit with the first end 110, the tapered sleeve 330 and the threaded rod 300 are enabled to be static relative to the long gear 600 in the rotation direction, the long gear 600 and the threaded rod 300 exert interaction force, the friction force between the filter pressing plate 400 and the first end 110 is larger than the friction force between the tapered sleeve 330 and the first end 110, the threaded rod 300 is enabled to downwards move to drive the tapered sleeve 330 to downwards move relative to the filter pressing plate 400 and the long gear 600, and the tapered sleeve 330 downwards moves into the third end 130 and blocks the liquid inlet channel 140.

And (III) the filter press plate 400 is used for carrying out filter press on sewage:

the tapered sleeve 330 stops moving downwards after abutting against the third end 130, the motor 650 continuously rotates reversely to enable the long gear 600 to rotate forwards, the long gear 600 moves forwards to enable the threaded rod 300 and the long gear 600 to be away from each other, when the tapered sleeve 330 abuts against the third end 130, the inner wall of the third end 130 stops moving downwards of the tapered sleeve 330, meanwhile, the end cover 500 abuts against the third matching part 230 through the telescopic head 580 to enable the threaded rod 300 to be static in the rotating direction, the tapered sleeve 330 further applies upward reaction force to the long gear 600 through the threaded rod 300, the long gear 600 moves upwards relative to the threaded rod 300 in the forward rotation process, the long gear 600 moves upwards to drive the second rack 620 to move upwards, the second rack 620 moves upwards and drives the first rack 610 to move downwards through the first gear 630, the first rack 610 moves downwards to drive the filter plate 400 to move downwards, and then the filter plate 400 is enabled to filter-press sewage in the first end 110 downwards, impurities in the sewage are enabled to be located below the filter plate 400, and the filtered sewage is located above the filter plate 400. Until the filter press plate 400 moves downwardly against the tapered sleeve 330, the filter press plate 400 is in the lowermost position at the first end 110. In the process of downward movement of the tapered sleeve 330, before the tapered sleeve 330 is separated from contact with the first end 110, the sliding rod 310 disposed below the threaded rod 300 abuts against the docking rod 540 on the end cover 500, the sliding rod 310 is in anti-rotation fit with the docking rod 540, after the tapered sleeve 330 abuts against the inner wall of the third end 130, the press-filter plate 400 moves downward, in the process of downward movement of the press-filter plate 400, the end cover 500 makes the threaded rod 300 stationary in the rotation direction, the telescopic head 580 abuts against the inner wall of the third mating part 230, friction between the third mating part 230 and the telescopic head 580 prevents the telescopic head 580 from moving downward relative to the third mating part 230, the end cover 500 moves downward in the forward rotation process, the third mating part 230 prevents the telescopic head 580 from moving downward and simultaneously prevents the end cover 500 from rotating, and further makes the end cover 500 stationary relative to the housing 100, and the end cover 500 stationary and the threaded rod 300 and the tapered sleeve 330 stationary in the rotation direction relative to the housing 100 through the docking rod 540 and the sliding rod 310.

(IV) discharging the filtered water out of the housing 100:

the motor 650 stops rotating, and the water in the casing 100 is discharged through the pumping device.

(V) unscrewing the end cap 500 to allow filtered impurities to exit the end cap 500:

the motor 650 is reversed, the motor 650 is reversed to drive the long gear 600 to rotate forward, the long gear 600 and the tapered sleeve 330 can be separated from each other by the forward rotation of the long gear 600, the tapered sleeve 330 is abutted against the third end 130, the long gear 600 moves upwards relative to the tapered sleeve 330, but the long gear 600 is static in the vertical direction because the filter pressing plate 400 is abutted against the position above the tapered sleeve 330, so that the threaded rod 300 and the long gear 600 synchronously rotate forward in the process of driving the long gear 600 to rotate forward by the reverse rotation of the motor 650, the driving force of the motor 650 is greater than the friction force of the third matching part 230 to the telescopic head 580, the motor 650 can drive the end cover 500 to rotate by the long gear 600 and the threaded rod 300, the threaded rod 300 rotates forward and drives the end cover 500 to rotate forward by the butt joint rod 540 and the sliding rod 310, the end cover 500 moves downwards relative to the housing 100 in the process of rotating and moves downwards to drive the telescopic head 580 to rotate and move downwards, and then the telescopic head 580 abuts against the third matching part 230 and the second matching part 220; the end cap 500 is switched from the first engagement position to the second engagement position during the downward movement, the discharge through-hole 530 is opened, and the foreign substances are discharged from the discharge through-hole 530.

And (six) screwing the end cover 500:

the motor 650 rotates forward, the motor 650 rotates forward to drive the second gear 640 to rotate forward, the second gear 640 rotates forward to drive the long gear 600 to rotate reversely, and the long gear 600 rotates reversely to enable the long gear 600 and the taper sleeve 330 to approach each other or to have a trend of approaching each other. The friction force between the threaded portion 510 of the end cap 500 and the first matching portion 210 of the discharge port 200 is smaller than that between the press filter 400 and the first end 110, so that the reverse rotation of the long gear 600 will drive the end cap 500 to be screwed, i.e. switch from the second matching position to the first matching position.

(seventh) the press plate 400 and the tapered sleeve 330 return to the original positions:

the reverse rotation of the long gear 600 will drive the end cap 500 to screw, and then the press plate 400 and the tapered sleeve 330 will move upwards synchronously to return to the original position.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. The construction wastewater treatment device is characterized by comprising a shell, a filter press plate and an end cover;

the housing has a first end and a second end in communication with each other, the first end being located above the second end; the outer edge of the filter pressing plate is arranged on the inner wall of the first end in a vertically sliding and sealing manner, and the filter pressing plate moves downwards relative to the first end and can press and filter sewage in the first end;

a discharge hole is arranged below the second end part;

the end cover is in threaded fit with the discharge hole, can move along the axial direction of the discharge hole in the rotation process of the end cover, is hollow, is communicated with the second end part, and is communicated with the first end part;

a discharge through hole is formed in the vertical face of the bottom of the end cover; the end cover is provided with a first matching position and a second matching position relative to the discharge hole, when the end cover is in the first matching position, the inner wall of the discharge hole seals the discharge through hole, and when the end cover is in the second matching position, the inner space of the end cover is communicated with the outer space through the discharge through hole; the filter pressing plate moves downwards to filter and press impurities in the first end part into the second end part and the end cover, the end cover is switched to the second matching position, the impurities are discharged out of the shell from the discharge through hole, and the construction wastewater treatment device further comprises a threaded rod which is vertically arranged in the shell and is coaxial with the second end part;

the threaded rod penetrates through the filter pressing plate;

the threaded rod can be in anti-rotation fit with the end cover, the threaded rod rotates to drive the end cover to rotate, the end cover is switched from the first fit position to the second fit position or from the second fit position to the first fit position through rotation, the shell further comprises a third end part, and the third end part is of a truncated cone-shaped shell structure with a large upper part and a small lower part and is fixedly connected between the first end part and the second end part;

the building construction wastewater treatment device also comprises a conical sleeve, wherein the conical sleeve is a round table-shaped shell with a large upper part and a small lower part, the upper end and the lower end of the conical sleeve are provided with openings, the conical sleeve is fixedly connected to the lower end of the threaded rod, and meanwhile, the conical sleeve is positioned below the filter pressing plate;

the threaded rod moves downwards to drive the conical sleeve to move downwards, and the conical sleeve can be matched with the first end part and the third end part in sequence in the downward movement process;

the conical sleeve is in anti-rotation fit with the first end, the conical sleeve is in rotation fit with the third end, and the outer wall of the conical sleeve can be abutted against the inner wall of the third end;

the third end part is provided with a liquid inlet channel, and the third end part can be communicated with the outside through the liquid inlet channel; the conical sleeve is abutted to the third end part to block the liquid inlet channel, and the building construction wastewater treatment device further comprises a long gear, a first rack, a second rack and a first gear;

the threaded rod penetrates through the filter pressing plate, and the filter pressing plate can slide up and down relative to the threaded rod; the first rack is vertically fixedly connected to the upper surface of the filter press plate, and the first gear is rotatably arranged in the shell through a shaft body; the first gear is meshed with the first rack;

the long gear is in threaded fit with the threaded rod, and the long gear is positioned above the filter pressing plate; the second rack is an L-shaped structure formed by a horizontal rod body and a vertical rack, the horizontal rod body is rotatably arranged on the long gear, the vertical rack is meshed with the first gear, and the vertical rack is always meshed with the first gear in the rotation process of the long gear;

the friction force between the filter pressing plate and the first end is greater than the friction force between the conical sleeve and the first end.

2. The construction wastewater treatment device according to claim 1, wherein a sliding hole is vertically formed in the lower end of the threaded rod, a sliding rod is slidably mounted in the sliding hole, a first elastic piece capable of stretching and rebounding is vertically mounted in the sliding hole, the first elastic piece applies a force to the sliding rod to enable the sliding rod to extend out of the sliding hole, and the threaded rod is in rotation-preventing fit with the end cover through the sliding rod; the sliding rod is in rotation-stopping fit with the inner wall of the sliding hole.

3. The construction wastewater treatment device according to claim 2, wherein a butt joint rod is vertically fixedly connected in the end cover, and the butt joint rod and the sliding rod are coaxially arranged;

the sliding rod is in anti-rotation fit with the butt joint rod.

4. The construction wastewater treatment apparatus according to claim 1, wherein the construction wastewater treatment apparatus further comprises a motor and a second gear;

the motor is fixedly connected to the upper end of the shell, the second gear is fixedly connected to the output end of the motor, and the second gear is meshed with the long gear;

the thickness of the long gear in the vertical direction is greater than the length of the vertical rack of the second rack.

5. The construction wastewater treatment device according to claim 1, wherein the inner wall of the discharge opening is divided into a first mating portion, a second mating portion and a third mating portion in order from bottom to top;

the end cover is provided with a threaded part and a ring body part;

the first matching part is provided with threads, and the end cover is in threaded fit with the first matching part; a telescopic shell is fixedly connected to the side wall of the ring body part, a telescopic head is horizontally and movably arranged in the telescopic shell, a second elastic piece capable of stretching and rebounding is arranged in the telescopic shell, the second elastic piece can apply acting force to the telescopic head, so that the telescopic head stretches out of the telescopic shell, and the telescopic head stretches out of the telescopic shell and can be abutted against the inner wall of the second matching part or the third matching part;

the second matching part is a truncated cone-shaped cavity structure with a small diameter at the upper part and a large diameter at the lower part, and the third matching part is a truncated cone-shaped cavity structure with a small diameter at the lower part and a large diameter at the upper part; the first matching part, the second matching part and the third matching part are coaxially arranged;

the included angle between the side face of the second matching part and the vertical direction is smaller than the included angle between the side face of the third matching part and the vertical direction.

6. The apparatus according to claim 5, wherein a guide groove is provided in an upper end surface of the screw portion, and the guide groove communicates with an outside and an inside of the screw portion.

7. The construction wastewater treatment device according to claim 3, wherein a cross protrusion is arranged on the lower end surface of the sliding rod, a cross groove is arranged on the upper end surface of the butt joint rod, and the cross protrusion is matched with the cross groove;

or (b)