Sewage pretreatment structure for municipal water supply and drainage design

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage pretreatment structure for municipal water supply and drainage design, which comprises a treatment box, a treatment cavity with an opening at the upper end is arranged in the treatment box, a plurality of detachable filter plates are arranged in the treatment cavity, and a plurality of clamping grooves are uniformly formed in opposite outer side walls of the treatment box along the height direction of the treatment box. Clamping blocks extending into the corresponding clamping grooves are arranged on the two sides of the filter plate, first fixing holes and second fixing holes are formed in the opposite side walls of the clamping grooves, fixing assemblies are arranged on the clamping blocks and comprise first fixing blocks capable of extending into the first fixing holes, and a liftable supporting assembly is arranged on the lower end face of the treatment box. According to the sewage pretreatment structure, the filter plate is detachably arranged, so that after the filter plate is used for a period of time and when the filter plate is damaged, the filter plate in the treatment cavity can be detached, the filter plate can be conveniently maintained or replaced, subsequent use is prevented from being influenced, and compared with the prior art, the sewage pretreatment structure can more conveniently maintain and replace the filter plate.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pretreatment, in particular to a sewage pretreatment structure for municipal water supply and drainage design. Background Art

[0002] Municipal sewage treatment refers to the process of treating sewage in a city to achieve the purification requirements of a certain water body or to enable it to be reused. Before sewage treatment, the sewage will first pass through a filter to filter out impurities in the sewage to achieve sewage pretreatment.

[0003] For example, a municipal sewage treatment equipment disclosed in the patent with announcement number CN216023423U includes a treatment tank and a driving motor, a water inlet is installed on the top of the treatment tank, a drain outlet is installed below the right end of the treatment tank, a driving motor is installed in the middle of the right end of the treatment tank, a leaf collecting frame is provided on the left side of the treatment tank, a partition net is integrally connected to the right side of the leaf collecting frame, a connecting shaft is fixed to the left end of the driving motor, a stirring blade is fixedly connected to the surface of the connecting shaft, a dirt drain plug is installed below the treatment tank, a filter net is installed inside the treatment tank, and a cleaning mechanism is provided on the surface or one end of the filter net. Although the municipal sewage treatment equipment separates branches and leaves from domestic garbage in sewage through the partition net on the right end of the leaf collecting frame, and the garbage can be discharged through the openings when it rotates and discharges, thereby improving the effect of the equipment on sewage pretreatment, the filter net may be damaged when used for a long time, affecting the filtering effect on sewage and requiring replacement of the filter net. The filter net in the municipal sewage treatment equipment is connected to the inside of the treatment tank by welding, which makes it inconvenient to repair and replace the filter net, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage pretreatment structure for municipal water supply and drainage design to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sewage pretreatment structure for municipal water supply and drainage design comprises a treatment box, a treatment chamber with an upper opening is arranged in the treatment box, a plurality of detachable filter plates are arranged in the treatment chamber, a plurality of slots are evenly arranged at the opposite outer side walls of the treatment box along its height direction, blocks are arranged on both sides of the filter plates and extend into the corresponding slots, a first fixing hole and a second fixing hole are arranged at the opposite side walls of the slots, a fixing assembly is arranged on the block, the fixing assembly comprises a first fixing block which can extend into the first fixing hole, the fixing assembly also comprises a second fixing block which can extend into the second fixing hole, and a lifting and lowering support assembly is arranged at the lower end surface of the treatment box.

[0007] Preferably, a driving cavity with an opening at one end is provided in the card block, and a blocking plate is provided at the opening of the driving cavity. The fixing component includes a rotating shaft which is arranged in the driving cavity and can rotate, and a gear is provided on the rotating shaft. A movable first rack and a second rack are relatively provided in the driving cavity, and the first rack and the second rack are respectively meshed with the gear. The first fixing block is provided at one end of the first rack, and the second fixing block is provided at one end of the second rack. The rotation of the gear is used to drive the first rack and the second rack to move relative to each other. A driving component for driving the gear to rotate is also provided in the driving cavity.

[0008] Preferably, a lifting cavity with an upper opening is provided at the upper end of the filter plate along its width direction, connecting grooves communicating with the corresponding drive cavity are provided at both ends of the lifting cavity, and a cover plate is provided at the opening of the lifting cavity; the driving assembly includes a third rack that can be lifted and lowered in the connecting groove, the third rack is meshed with the corresponding gear, a lifting plate that can be lifted and lowered is provided in the lifting cavity, the upper end of the third rack is connected to the lifting plate, and a handle that extends through the cover plate is provided on the lifting plate.

[0009] Preferably, a first limiting groove is provided on the side wall of the driving cavity along the moving direction of the first rack, and a first sliding block is provided on the first rack and slides in the first limiting groove.

[0010] Preferably, a detachable second limiting block is provided on the side wall of the second rack.

[0011] Preferably, the support assembly comprises a first leg arranged relative to the lower end surface of the processing box and located at the four corners, a telescopic cavity is provided in the first leg, and a movable second leg is provided in the telescopic cavity.

[0012] Preferably, a movable groove is provided at the side wall opposite to the first leg, a connecting rod is provided between the oppositely arranged second legs, both ends of the connecting rod are extended from the movable groove, and a nut is threadedly connected to the extended end of the connecting rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model adopts the detachable setting of the filter plate, so that after a period of use, when the filter plate is damaged, the filter plate can be removed for repair or replacement to avoid affecting the subsequent filtering effect. Compared with the existing ones, the sewage pretreatment structure can be more convenient for maintenance and repair of the filter plate in actual use, and is more applicable.

[0015] 2. The utility model can adjust the height of the treatment box from the ground through the liftable setting of the support component. When the water inlet pipe and the water outlet pipe have a certain height difference when docking with the municipal water supply and drainage pipeline, the support height of the treatment box can be adjusted by adjusting the support component, so that the treatment box can be docked and installed on the municipal water supply and drainage pipeline, which is more convenient to use. Description of the Drawings

[0016] Figure 1 This is the overall structural schematic diagram of a sewage pretreatment structure for municipal water supply and drainage design in the present utility model.

[0017] Figure 2 This is the structural schematic diagram of the treatment tank, the first leg, and the second leg in the present utility model.

[0018] Figure 3 This is the structural schematic diagram of the filter plate in the present utility model.

[0019] Figure 4 It is Figure 3 the enlarged view of part A in

[0020] Figure 5 This is the exploded view of the filter plate, the moving plate, and the handle in the present utility model.

[0021] The meanings of the reference numerals in the figure are as follows:

[0022] 100, treatment tank; 101, water inlet pipe; 102, second leg; 103, first leg; 104, connecting rod; 110, treatment chamber; 105, moving groove; 120, filter plate;

[0023] 200, clamping groove; 210, water outlet pipe; 220, nut;

[0024] 300, clamping block; 301, handle; 310, filter hole; 320, first fixing block;

[0025] 400, driving chamber; 401, plug plate; 410, second rack; 411, second fixing block; 413, second limiting block; 420, rotating shaft; 421, gear; 430, first rack; 431, first limiting groove; 440, third rack;

[0026] 500, lifting chamber; 510, cover plate; 521, lifting plate. Detailed Description of the Preferred Embodiment

[0027] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the drawings and embodiments. It should be understood that the embodiments are only for explaining the present utility model and not for limiting it.

[0028] The following will further elaborate on this embodiment with reference to the attached Figures 1-5 drawings.

[0029] Please refer to Figures 1-4, A sewage pretreatment structure for municipal water supply and drainage design in this embodiment includes a treatment tank 100. There is a treatment chamber 110 with an open upper end in the treatment tank 100, and a plurality of detachable filter plates 120 are arranged in the treatment chamber 110; on the opposite outer side walls of the treatment tank 100, a plurality of card slots 200 are arranged along its height direction. On both sides of the filter plate 120, there are card blocks 300 extending into the corresponding card slots 200. At the opposite side walls of the card slots 200, there are a first fixing hole and a second fixing hole. On the card block 300, there is a fixing component. The fixing component includes a first fixing block 320 that can extend into the first fixing hole. The fixing component also includes a second fixing block 411 that can extend into the second fixing hole. At the lower end surface of the treatment tank 100, there is a liftable support component.

[0030] In this embodiment, a water inlet pipe 101 communicating with the treatment chamber 110 is arranged on one side wall of the treatment tank 100, and a water outlet pipe 210 communicating with the treatment chamber 110 is arranged on the other side wall of the treatment tank 100. Through the water inlet pipe 101 and the water outlet pipe 210, the treatment tank 100 can be preferably docked and installed on the pipeline of municipal water supply and drainage; the sewage to be treated enters the treatment chamber 110 through the water inlet pipe 101. A plurality of filter holes 310 are arranged on the filter plate 120. Through the above structure, the filter plate 120 can filter the impurities in the sewage in the treatment chamber 110, realizing the pretreatment of the sewage.

[0031] In this embodiment, the apertures of the filter holes 310 on the filter plate 120 are different, so that the treatment tank 100 can perform multi-stage filtration on the sewage therein, improving the filtration effect.

[0032] Among them, through the open upper end setting of the treatment chamber 110, the filter plate 120 can be inserted and removed in the treatment chamber 110. At the same time, after the treatment tank 100 is used for a period of time, it is convenient to clean the impurities in the treatment chamber 110.

[0033] Among them, through the detachable setting of the filter plate 120, when the filter plate 120 is damaged after being used for a period of time, the filter plate 120 in the treatment chamber 110 can be removed for maintenance or replacement, so as not to affect the subsequent filtration effect. Compared with the existing ones, the sewage pretreatment structure in this embodiment can be more convenient for maintaining and replacing the filter plate 120 during actual use, and is more applicable.

[0034] Among them, through the settings of the card slot 200 and the card block 300, when disassembling and assembling the filter plate 120 in the processing box 100, the card block 300 can be inserted into the corresponding card slot 200. At this time, the filter plate 120 is fixed in the height direction of the processing box 100. In order to prevent the filter plate 120 from being impacted by the flowing sewage during subsequent use and also causing it to lift and sway along the card slot 200, affecting the filtering effect, by inserting the first fixing block 320 into the first fixing hole and the second fixing block 411 into the second fixing hole, the filter plate 120 can be fixed to prevent the filter plate 120 from being lifted.

[0035] Of course, in order to improve the sealing effect of the filter plate 120, a sealing gasket that fits the side wall of the processing chamber 110 is provided on the outer side wall of the filter plate 120.

[0036] Among them, through the liftable setting of the support assembly, the ground clearance height of the processing box 100 can be adjusted. When there is a certain height difference between the water inlet pipe 101 and the water outlet pipe 210 and the pipeline of the municipal water supply and drainage, the support height of the processing box 100 can be adjusted by adjusting the support assembly, so that the processing box 100 can be butt - installed on the pipeline of the municipal water supply and drainage, making it more convenient to use.

[0037] As Figures 3-4 shown, in this embodiment, a driving cavity 400 with one - end open is provided in the card block 300. A plug plate 401 is provided at the opening of the driving cavity 400. The fixing assembly includes a rotatable rotating shaft 420 provided in the driving cavity 400. A gear 421 is provided on the rotating shaft 420. Oppositely - arranged movable first rack 430 and second rack 410 are provided in the driving cavity 400. The first rack 430 and the second rack 410 are respectively engaged with the gear 421. The first fixing block 320 is provided at one end of the first rack 430, and the second fixing block 411 is provided at one end of the second rack 410. The rotation of the gear 421 is used to drive the relative movement of the first rack 430 and the second rack 410. A driving assembly for driving the rotation of the gear 421 is also provided in the driving cavity 400.

[0038] In this embodiment, both ends of the rotating shaft 420 are rotatably connected to the side wall of the driving cavity 400 through bearings, realizing the rotational installation of the rotating shaft 420 in the driving cavity 400. The rotation of the rotating shaft 420 drives the rotation of the gear 421, and further drives the relative movement of the first rack 430 and the second rack 410. The first fixing block 320 and the second fixing block 411 are both telescopically arranged in the driving cavity 400. During actual use, one end of the first fixing block 320 is fixedly connected to one end of the first rack 430, and the other end extends out of the driving cavity 400 and inserts into the first fixing hole. One end of the second fixing block 411 is fixedly connected to one end of the second rack 410, and the other end extends out of the driving cavity 400 and inserts into the second fixing hole. At this time, the clamping block 300 is fixed, that is, the filter plate 120 is fixed.

[0039] Among them, through the setting of the driving component, the rotation of the rotating shaft 420 can be controlled to fix or release the fixing of the filter plate 120.

[0040] As Figure 4 shown, in this embodiment, a first limiting groove 431 is provided on the side wall of the driving cavity 400 along the moving direction of the first rack 430, and a first slider located in the first limiting groove 431 is provided on the first rack 430.

[0041] In this embodiment, the cross-sections of the first slider and the first limiting groove 431 are both T-shaped. Through the setting of the first slider and the first limiting groove 431, the moving direction of the first rack 430 is restricted, enabling it to be slidably installed in the driving cavity 400.

[0042] Among them, a second limiting groove is provided in the driving cavity 400 along the moving direction of the second rack 410, and a second slider located in the second limiting groove is provided on the second rack 410. The cross-sections of the second slider and the second limiting groove are also T-shaped, and the second slider can function to limit the moving direction of the second rack 410.

[0043] As Figure 4 shown, in this embodiment, a detachable second limiting block 413 is provided on the side wall of the second rack 410.

[0044] In this embodiment, through the setting of the second limiting block 413, when the moving distance of the second rack 410 is restricted, that is, when the second limiting block 413 contacts the side wall of the driving cavity 400, the second rack 410 cannot move, and further enables the second rack 410 and the gear 421 to always maintain an engaged state.

[0045] Among them, the second limiting block 413 is detachably connected to the second rack 410 through screws. After the second rack 410 extends into the driving cavity 400 through the second through hole, the second limiting block 413 is connected to the second rack 410.

[0046] In actual use of this embodiment, a detachable first limit block is provided on the first rack 430, and the first limit block is used to limit the moving distance of the first rack 430;

[0047] In actual use of this embodiment, the blocking plate 401 is detachably connected to the clamping block 300 by screws. After the rotating shaft 420, the gear 421, the first rack 430, the second rack 410, the first limit block and the second limit block 413 are installed in the driving cavity 400, the blocking plate 401 is used to close the opening of the driving cavity 400 to prevent external debris from entering the driving cavity 400.

[0048] like Figures 3-5 As shown, in this embodiment, a lifting cavity 500 with an upper opening is provided at the upper end of the filter plate 120 along its width direction, and connecting grooves communicating with the corresponding driving cavity 400 are provided at both ends of the lifting cavity 500, and a cover plate 510 is provided at the opening of the lifting cavity 500;

[0049] The driving assembly includes a third rack 440 that can be raised and lowered in the connecting groove. The third rack 440 is meshed with the corresponding gear 421. A lifting plate 521 that can be raised and lowered is provided in the lifting chamber 500. The upper end of the third rack 440 is connected to the lifting plate 521. The lifting plate 521 is provided with a handle 301 that extends through the cover plate 510.

[0050] In this embodiment, the connecting groove limits the third rack 440, that is, the third rack 440 can only move along the extension direction of the connecting groove, preventing the third rack 440 from shaking during movement, and better maintaining engagement with the corresponding gear 421; in the initial state, the lifting plate 521 and the third rack 440 move downward under the action of gravity, driving the gear 421 to rotate, driving the first fixed block 320 and the second fixed block 411 to extend, when the lifting handle 301 drives the lifting plate 521 to move upward in the lifting chamber 500, driving the gear 421 to rotate, so that the first fixed block 320 and the second fixed block 411 retract, at this time, the fixation of the filter plate 120 is released, and the handle 301 is continued to be lifted to realize the filter plate 120 being pulled out of the opening of the processing chamber 110, which is simple and convenient to operate and easy to use.

[0051] In actual use, the third rack 440 and the first rack 430 and the second rack 410 contact the gear 421 at different positions respectively. Through this structure, the third rack 440 and the first rack 430 and the second rack 410 will not interfere with each other when moving.

[0052] like Figure 1As shown, in this embodiment, the support assembly includes a first leg 103 disposed relative to the lower end surface of the processing box 100 and located at the four corners, a telescopic cavity is disposed in the first leg 103, and a movable second leg 102 is disposed in the telescopic cavity.

[0053] In this embodiment, by configuring the first leg 103, the second leg 102 and the telescopic cavity, when the height of the processing box 100 from the ground needs to be adjusted, the distance that the second leg 102 extends out of the telescopic cavity can be adjusted.

[0054] like Figures 1-2 As shown, in this embodiment, a movable groove 105 is provided at the side wall opposite to the first leg 103, and a connecting rod 104 is provided between the opposite second legs 102. Both ends of the connecting rod 104 extend out from the movable groove 105, and a nut 220 is threadedly connected to the extended end of the connecting rod 104.

[0055] In this embodiment, when it is necessary to adjust the length of the second leg 102 extending out of the telescopic cavity, the processing box 100 is lifted with the assistance of a jack, and then the nuts 220 on the same side are loosened in turn, and the second leg 102 is driven to move by moving the connecting rod 104. When it moves to the desired position, the nuts 220 on the same side are tightened in turn to fix the position of the second leg 102. When it is necessary to adjust the second leg 102 on the other side, the above operation is repeated.

[0056] Working principle: When sewage pretreatment is required, first, the treatment box 100 is moved to the vicinity of the sewage pipe, and then the length of the second leg 102 extending out of the telescopic cavity is adjusted to align the water inlet pipe 101 with the sewage pipe, and the water inlet pipe 101 is connected to the sewage pipe by bolts. The filter plate 120 can filter impurities in the sewage. When the filter plate 120 is damaged after being used for a period of time and affects its filtering effect, the handle 301 can be moved up to drive the first fixed block 320 and the second fixed block 411 to retract into the drive cavity 400 to release the fixation of the filter plate 120. At this time, the handle 301 is continued to be moved up to drive the filter plate 120 to move up and out of the treatment cavity 110, and the damaged filter plate 120 can be repaired or replaced.

[0057] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A sewage pretreatment structure for municipal water supply and drainage design, including a treatment tank (100), wherein a treatment chamber (110) with an open upper end is arranged in the treatment tank (100), and it is characterized in that: The processing chamber (110) is provided with a plurality of detachable filter plates (120). A plurality of clamping grooves (200) are evenly arranged along the height direction at the opposite outer side walls of the processing box (100). Clamping blocks (300) extending into the corresponding clamping grooves (200) are arranged on both sides of the filter plate (120). First fixing holes and second fixing holes are arranged at the opposite side walls of the clamping groove (200). A fixing component is arranged on the clamping block (300). The fixing component includes a first fixing block (320) that can extend into the first fixing hole. The fixing component further includes a second fixing block (411) that can extend into the second fixing hole. A liftable support component is arranged at the lower end surface of the processing box (100).

2. The sewage pretreatment structure for municipal water supply and drainage design according to claim 1, characterized in that: A driving cavity (400) with an open end is arranged in the clamping block (300). A plug plate (401) is arranged at the opening of the driving cavity (400). The fixing component includes a rotating shaft (420) arranged in the driving cavity (400) and capable of rotating. A gear (421) is arranged on the rotating shaft (420). A movable first rack (430) and a second rack (410) are oppositely arranged in the driving cavity (400). The first rack (430) and the second rack (410) are respectively engaged with the gear (421). The first fixing block (320) is arranged at one end of the first rack (430). The second fixing block (411) is arranged at one end of the second rack (410). The rotation of the gear (421) is used to drive the first rack (430) and the second rack (410) to move relatively. A driving component for driving the gear (421) to rotate is further arranged in the driving cavity (400).

3. A sewage pretreatment structure for municipal water supply and drainage design according to claim 2, characterized in that: At the upper end part of the filter plate (120), a lifting cavity (500) with an upper opening is arranged along the width direction. Connecting grooves communicating with the corresponding driving cavities (400) are arranged at both ends of the lifting cavity (500). A cover plate (510) is arranged at the opening of the lifting cavity (500). The driving component includes a third rack (440) that can be lifted and arranged in the connecting groove. The third rack (440) is engaged with the corresponding gear (421). A liftable lifting plate (521) is arranged in the lifting cavity (500). The upper end of the third rack (440) is connected to the lifting plate (521). A handle (301) extending through the cover plate (510) is arranged on the lifting plate (521).

4. A sewage pretreatment structure for municipal water supply and drainage design according to claim 2, characterized in that: A first limiting groove (431) is arranged on the side wall of the driving cavity (400) along the moving direction of the first rack (430). A first slider located in the first limiting groove (431) and sliding is arranged on the first rack (430).

5. A sewage pretreatment structure for municipal water supply and drainage design according to claim 4, characterized in that: A detachable second limiting block (413) is arranged at the side wall of the second rack (410).

6. A sewage pretreatment structure for municipal water supply and drainage design according to claim 1, characterized in that: The support component includes first legs (103) oppositely arranged at the lower end surface of the processing box (100) and located at the four corners. A telescopic cavity is arranged in the first leg (103). A movable second leg (102) is arranged in the telescopic cavity.

7. A sewage pretreatment structure for municipal water supply and drainage design according to claim 6, characterized in that: Moving grooves (105) are arranged at the opposite side walls of the first legs (103). A connecting rod (104) is arranged between the relatively arranged second legs (102). Both ends of the connecting rod (104) extend out through the moving grooves (105). Nuts (220) are threadedly connected to the extending ends of the connecting rod (104).

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