Filtering device for municipal water supply and drainage

Abstract

The utility model relates to the technical field of filtering devices, and discloses a filtering device for municipal water supply and drainage, which comprises a filtering box internally provided with a filtering cavity, a plurality of groups of filtering plates are arranged in the filtering cavity, long strip blocks are oppositely arranged on the opposite side walls of the filtering cavity, sliding grooves are formed in the long strip blocks, and the two sides of each filtering plate extend into the corresponding sliding grooves in a sliding manner. Locking assemblies are oppositely arranged on the outer side wall of the filter box; the locking assembly comprises a locking block, a locking cavity is formed in the locking block in the length direction of the locking block, a telescopic locking rod is arranged in the locking cavity, one end of the locking rod extends into the filter plate and is used for positioning the filter plate, and a limiting assembly used for limiting the locking rod is further arranged in the locking cavity. A locking rod is pulled outwards, and an abutting ring compresses a first spring, so that the locking rod can be separated from a limiting hole, and positioning of the filter plate is cancelled; when the extending end of the locking rod stops being pulled outwards, the locking rod extends into the limiting hole to position the filter plate under the action of the first spring, so that the filter plate is relatively convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, and more specifically, to a filtering device for municipal water supply and drainage. Background Art

[0002] Municipal water supply and drainage generally refer to the urban water supply system and drainage system. The drainage project consists of a human domestic sewage and various wastewater in production, a drainage pipe system, a wastewater treatment plant and final treatment facilities. Filtering devices need to be used for filtering the water pipes in municipal water supply and drainage.

[0003] For example, a clogging-proof filtering device for municipal water supply and drainage disclosed in the patent with the publication number of CN221131369U. Although the filtering device is provided with a cleaning plate and a sundry collection box, the cleaning plate can clean the sundries on the filter screen, so that the sundries fall into the interior of the sundry collection box. The sundry collection box is slidably connected to the filter box, which is convenient for cleaning the sundries inside the sundry collection box. When the drainage system is blocked, it is convenient to clean. However, when the filtering device is actually used, the cleaning plate is driven by a hydraulic cylinder to scrape the filter screen to prevent the filter screen from being blocked. The cleaning effect of this cleaning method is limited, which affects the filtering effect of the filter screen. Therefore, the filter screen needs to be removed from the filter box for cleaning. Since the side wall of the filter screen is fixedly installed on the inner side wall of the filter box, generally fixed by fixing parts such as bolts, when the filter plate needs to be removed from the filter box, the fixing parts such as bolts need to be screwed multiple times, and the operation is relatively cumbersome, so it needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a filtering device for municipal water supply and drainage to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A filtering device for municipal water supply and drainage includes a filter box with a filtering cavity inside. A plurality of filter plates are installed in the filtering cavity. Long strip blocks are oppositely arranged on the opposite side walls of the filtering cavity. Sliding grooves are provided on the long strip blocks. Both sides of the filter plate slide into the corresponding sliding grooves. Locking components for positioning the filter plates are oppositely arranged on the outer side wall of the filter box. The locking component includes a lock block. A locking cavity is arranged along the length direction inside the lock block. A telescopic lock rod is arranged in the locking cavity. One end of the lock rod extends into the filter plate to position the filter plate. A limiting component for limiting the lock rod is also arranged in the locking cavity.

[0007] Furthermore, both ends of the locking cavity are open. A locking cylinder is provided at the opening position of one end. The locking rod passes through the locking cylinder and extends out. An abutting ring that moves within the locking cavity is provided on the locking rod at the opening position of the other end. A first spring is provided on the locking rod between the abutting ring and the locking cylinder. The first spring is used to push one end of the locking rod into the side wall of the filter plate.

[0008] Furthermore, a placement cavity communicating with the locking cavity is vertically provided in the locking block within the locking cavity. The limiting component includes a limiting post disposed in the placement cavity through a third spring. The third spring is used to push the limiting post upward so that the limiting post cooperates with the abutting ring to retract the locking rod within the locking cavity.

[0009] Furthermore, a cavity penetrating the placement cavity is also provided in the locking block parallel to the locking rod. An installation cavity is provided on the limiting post corresponding to the cavity. A first inclined surface is provided on the bottom wall of the installation cavity. A driving rod that can slide and one end of which extends into the installation cavity is provided in the cavity. A second inclined surface adapted to the first inclined surface is provided on the end of the driving rod extending into the installation cavity. When the driving rod slides into the cavity, it is used to drive the second inclined surface to squeeze the first inclined surface to move the limiting post downward.

[0010] Furthermore, the locking cylinder is slidably installed within the locking cavity and one end extends out of the locking cavity. A retaining ring is provided on the extending end of the locking cylinder. A second spring is provided on the locking cylinder between the retaining ring and the side wall of the locking block. The second spring is used to push the locking cylinder out of the locking block. The retaining ring is connected to the driving rod through a driving plate.

[0011] Furthermore, a sliding groove is provided on the outer side wall of the locking cylinder along its length direction. A connecting block that slides within the sliding groove is provided on the side wall of the locking cavity.

[0012] Furthermore, a limiting block is provided on the upper end surface of the limiting post. A third inclined surface is provided on the limiting block. A fourth inclined surface adapted to the third inclined surface is provided on the outer side wall of the abutting ring.

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

[0014] 1. In the present utility model, through the arrangement of the locking component, when the locking rod is pulled outward, the locking rod drives the abutting ring to move and compress the first spring. Furthermore, the locking rod extending into the limiting hole can be disengaged from the limiting hole, thereby canceling the locking and fixing of the filter plate. When the pulling of the extending end of the locking rod stops, under the action of the first spring, the abutting ring can drive the locking rod to move away from the locking cylinder, so that the locking rod can extend into the limiting hole to lock and fix the filter plate. The disassembly and assembly operation of the filter plate is simple and convenient for actual use.

[0015] 2. In the present utility model, through the arrangement of the limiting component, the third spring can push the limiting post upward, so that the limiting post extends into the locking cavity, and then the side wall of the abutting ring can abut against the side wall of the limiting post, thereby enabling the limiting component to always keep the locking component from positioning the filter plate, making it more convenient to take out and place the filter plate in the filtering cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a filtering device for municipal water supply and drainage in the present utility model.

[0017] Figure 2 It is a schematic structural diagram of the locking component in the present utility model.

[0018] Figure 3 It is a schematic sectional structure diagram of the locking component in the present utility model.

[0019] Figure 4 It is a schematic structural diagram of the limiting component in the present utility model.

[0020] Figure 5 It is a schematic structural diagram of the limiting post in the present utility model.

[0021] The meanings of the reference numerals in the figure are as follows: 100, filter box; 110, water inlet pipe; 140, lock block;

[0022] 200, filtering cavity; 210, water outlet pipe; 220, filter plate; 230, long strip;

[0023] 300, lock rod; 310, lock cylinder; 320, second spring; 330, retaining ring; 340, driving plate; 350, driving rod;

[0024] 400, locking cavity; 410, sliding groove; 420, connecting block; 430, abutting ring; 440, first spring; 450, placement cavity; 460, second inclined surface;

[0025] 500, fourth inclined surface; 510, limiting post; 520, third spring;

[0026] 600, first inclined surface; 610, installation cavity; 620, third inclined surface; 630, limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To further understand the content of the present utility model, the present utility model will be described in detail in combination with 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 be further described in detail with reference to the Figures 1-5 present embodiment.

[0029] Combined Figures 1-5 As shown in Figures 1-5 , a filtering device for municipal water supply and drainage in this embodiment includes a filtering box 100 with a filtering cavity 200 inside. A plurality of filter plates 220 are installed in the filtering cavity 200. Long strip blocks 230 are oppositely provided on the opposite side walls of the filtering cavity 200. Sliding grooves are provided on the long strip blocks 230. The two sides of the filter plate 220 slide into the corresponding sliding grooves. Locking components for positioning the filter plate 220 are oppositely provided on the outer side wall of the filtering box 100. The locking component includes a lock block 140. A locking cavity 400 is provided along the length direction of the lock block 140. A retractable lock rod 300 is provided in the locking cavity 400. One end of the lock rod 300 extends into the filter plate 220 for positioning the filter plate 220. A limiting component for limiting the lock rod 300 is also provided in the locking cavity 400.

[0030] When this embodiment is actually used, the upper end of the filtering cavity 200 is open. Water inlet pipes 110 and water outlet pipes 210 are provided on the side walls at the front and rear ends of the filtering box 100. Through the water inlet pipes 110 and the water outlet pipes 210, this filtering device can be connected to the water pipes in municipal water supply and drainage. The sewage in the water pipe enters the filtering cavity 200 through the water inlet pipes 110 and is discharged through the water outlet pipes 210. Among them, a plurality of filter plates 220 are distributed in the filtering cavity 200 in the front-rear direction. Thus, the sewage flowing in the filtering cavity 200 can be better filtered, enabling the filter plates 220 to filter and separate the impurities in the sewage from the sewage, so that the impurities can stay in the filtering cavity 200 for collection.

[0031] When it is actually used, the long strip blocks 230 are connected to the opposite side walls of the filtering cavity 200 by welding along the height direction of the filtering box 100. The sliding grooves are arranged along the length direction of the long strip blocks 230. Thus, the filter plates 220 extend into the filtering cavity 200 from the opening of the filtering cavity 200, and the two sides of the filter plates 220 slide into the corresponding sliding grooves, enabling the filter plates 220 to be slidably installed in the filtering cavity 200.

[0032] Among them, through the settings of the lock block 140, the locking cavity 400 and the lock rod 300, when the lock block 140 is fixed on the outer side wall of the filtering box 100, the lock rod 300 extends and retracts in the locking cavity 400, and one end of it inserts into the filter plate 220 that has slid into the corresponding sliding groove, enabling the filter plate 220 to be positioned in the sliding groove, preventing the filter plate 220 from shaking and causing a gap between its bottom wall and the bottom wall of the filtering cavity 200, which affects the filtering effect.

[0033] Among them, through the setting of the limiting component, the lock rod 300 can always retract into the locking cavity 400, and thus the lock rod 300 can always cancel the positioning of the filter plate 220, facilitating the operator to install the filter plate 220.

[0034] CombinedFigures 3-4 As shown, in this embodiment, both ends of the locking cavity 400 are open. A locking cylinder 310 is provided at one open end. The locking rod 300 passes through the locking cylinder 310 and extends out. A contact ring 430 that moves within the locking cavity 400 is provided on the locking rod 300 at the other open end. A first spring 440 is provided on the locking rod 300 between the contact ring 430 and the locking cylinder 310. The first spring 440 is used to push one end of the locking rod 300 into the side wall of the filter plate 220.

[0035] During actual use, a limiting hole for one end of the locking rod 300 to extend into is provided on the side wall of the filter plate 220. One end of the first spring 440 abuts against the end wall of the locking cylinder 310, and the other end abuts against the side wall of the contact ring 430. When the extended end of the locking rod 300 is pulled outwards, the locking rod 300 drives the contact ring 430 to move towards one side of the locking cylinder 310, and the contact ring 430 compresses the first spring 440, so that the locking rod 300 extending into the limiting hole can be disengaged from the limiting hole, thereby canceling the positioning of the filter plate 220.

[0036] Among them, when stopping pulling out the extended end of the locking rod 300, the first spring 440 resets and pushes the contact ring 430 to drive the locking rod 300 to move away from the locking cylinder 310, so that the locking rod 300 can extend into the limiting hole to position the filter plate 220. Compared with the existing method of removing the filter plate 220 from the filter box 100 by screwing bolts and other fixing parts, in this embodiment, by pulling out the locking rod 300 outwards, the locking rod 300 extending into the limiting hole can be disengaged from the limiting hole, thereby canceling the positioning of the filter plate 220. The operation is relatively simple and convenient for actual use.

[0037] Among them, the locking cylinder 310 is adapted to the locking cavity 400, and the side wall of the contact ring 430 fits with the side wall of the locking cavity 400, so that the locking rod 300 can be aligned with the limiting hole, and under the action of the first spring 440, it can preferably extend into the limiting hole to position the filter plate 220.

[0038] Combined Figures 3-5 As shown, in this embodiment, a placement cavity 450 communicating with the locking cavity 400 is vertically provided in the locking block 140 with respect to the locking cavity 400. The limiting component includes a limiting post 510 provided in the placement cavity 450 through a third spring 520. The third spring 520 is used to push the limiting post 510 upwards so that the limiting post 510 cooperates with the contact ring 430 to realize the retraction of the locking rod 300 in the locking cavity 400.

[0039] During actual use of this embodiment, a limiting block 630 is provided on the upper end surface of the limiting post 510. A third inclined surface 620 is provided on the limiting block 630. A fourth inclined surface 500 adapted to the third inclined surface 620 is provided on the outer side wall of the contact ring 430.

[0040] During actual use, the placement cavity 450 is located between the lock cylinder 310 and the abutting ring 430. When the lock rod 300 is pulled outwards, the lock rod 300 can drive the abutting ring 430 to move towards one side of the lock cylinder 310. During the movement of the abutting ring 430, the fourth inclined surface 500 can be driven to abut against and squeeze the third inclined surface 620 to move downwards, so that the limiting block 630 can drive the limiting column 510 to move downwards. When the lock rod 300 is continuously pulled outwards and the abutting ring 430 moves to one side wall of the limiting block 630, the fourth inclined surface 500 stops squeezing the third inclined surface 620, so that the third spring 520 can push the limiting column 510 to move upwards. Furthermore, the limiting column 510 can drive the limiting block 630 to move upwards, so that the side wall of the abutting ring 430 can abut against the side wall of the limiting block 630, thereby enabling the lock rod 300 to always retract into the locking cavity 400;

[0041] In this embodiment, a cavity penetrating the placement cavity 450 is further provided in the lock block 140 in parallel with the lock rod 300. An installation cavity 610 is provided on the limiting column 510 corresponding to the cavity. A first inclined surface 600 is provided on the bottom wall of the installation cavity 610. A driving rod 350 that can slide and one end of which extends into the installation cavity 610 is provided in the cavity. A second inclined surface 460 adapted to the first inclined surface 600 is provided at one end of the driving rod 350 extending into the installation cavity 610. When the driving rod 350 slides towards the cavity, it is used to drive the second inclined surface 460 to squeeze the first inclined surface 600, realizing the downward movement of the limiting column 510.

[0042] Among them, by pushing the driving rod 350 to move towards one side of the installation cavity 610, the driving rod 350 can drive the second inclined surface 460 to slide and squeeze the first inclined surface 600. Furthermore, the limiting column 510 can be driven to move downwards by compressing the third spring 520, so that the limiting column 510 can retract into the placement cavity 450, canceling the limitation on the abutting ring 430. Under the action of the first spring 440, the lock rod 300 can extend into the limiting hole to position the filter plate 220;

[0043] Among them, when the driving rod 350 stops being pushed, the third spring 520 can push the limiting column 510 to move upwards. Furthermore, the limiting column 510 can push the limiting block 630 to move upwards. When the first inclined surface 600 moves upwards, it can push the second inclined surface 460 to drive the driving rod 350 to move towards the cavity side, so that when the limiting column 510 moves upwards, its upper end can extend into the locking cavity 400;

[0044] In this embodiment, the lock cylinder 310 is slidably installed in the locking cavity 400 and one end thereof extends out of the locking cavity 400. A retaining ring 330 is provided on the extending end of the lock cylinder 310. A second spring 320 is provided on the lock cylinder 310 between the retaining ring 330 and the side wall of the lock block 140. The second spring 320 is used to push the lock cylinder 310 to extend out of the lock block 140. The retaining ring 330 is connected to the driving rod 350 through a driving plate 340.

[0045] During actual use, a sliding groove 410 is provided on the outer side wall of the lock cylinder 310 along its length direction. A connecting block 420 that slides in the sliding groove 410 is provided on the side wall of the locking cavity 400, so that the lock cylinder 310 can be slidably installed in the locking cavity 400;

[0046] During actual use, one end of the second spring 320 abuts against the side wall of the retaining ring 330, and the other end abuts against the side wall of the lock block 140. By pushing the lock cylinder 310 inward, the lock cylinder 310 can drive the retaining ring 330 to move toward the inside of the locking cavity 400 and compress the second spring 320. At the same time, the retaining ring 330 can drive the driving plate 340 to push the driving rod 350 to move toward the side of the installation cavity 610, so that the driving rod 350 can drive the second inclined surface 460 to slide and press the first inclined surface 600, so that the limiting column 510 can move downward by compressing the third spring 520, so that the limiting column 510 can retract into the placement cavity 450, so that under the action of the first spring 440, the lock rod 300 can extend into the limiting hole to limit the filter plate 220;

[0047] Among them, through the settings of the sliding groove 410 and the connecting block 420, when pushing the lock cylinder 310 stops, the second spring 320 resets and pushes the lock cylinder 310 outward, so that the lock cylinder 310 can slide in the locking cavity 400, so that the connecting block 420 can move along the sliding groove 410. When the connecting block 420 slides to the side wall at the end of the sliding groove 410, at this time the lock cylinder 310 stops sliding in the locking cavity 400, thereby preventing the lock cylinder 310 from sliding out of the locking cavity 400.

[0048] Among them, the lock block 140 is formed by splicing in half, so that the third spring 520 and the limiting column 510 can be installed in the placement cavity 450, so that the limiting component can be installed in the lock block 140.

[0049] Working principle: When positioning the filter plate 220 is required, push the lock cylinder 310 inward, so that the retaining ring 330 can drive the driving plate 340 to push the driving rod 350 to move toward the installation cavity 610 side, so that the driving rod 350 can drive the second inclined surface 460 to slide and squeeze the first inclined surface 600, and further enable the limiting column 510 to compress the third spring 520 downward to move downward, so that the limiting column 510 can retract into the placement cavity 450, cancel the limit on the abutting ring 430. At this time, the first spring 440 pushes the abutting ring 430 to drive the lock rod 300 to extend into the limiting hole to lock and fix the filter plate 220; When it is necessary to cancel the positioning of the filter plate 220, pull the extended end of the lock rod 300 outward, so that the lock rod 300 can drive the abutting ring 430 to drive the fourth inclined surface 500 to move toward the lock cylinder 310 side. During the movement, the fourth inclined surface 500 can squeeze the third inclined surface 620 to move downward, so that the limiting block 630 can drive the limiting column 510 to move downward. Continue to pull the lock rod 300 outward. When the abutting ring 430 moves to the side wall of the limiting block 630, the fourth inclined surface 500 stops squeezing the third inclined surface 620, so that the third spring 520 can push the limiting column 510 to move upward. Furthermore, the limiting column 510 can drive the limiting block 630 to move upward, so that the side wall of the abutting ring 430 can abut against the side wall of the limiting block 630, thereby releasing the positioning of the filter plate 220.

[0050] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

Claims

1. A filtering device for municipal water supply and drainage, comprising a filter box (100) having a filter chamber (200) therein, wherein a plurality of filter plates (220) are installed in the filter chamber (200), characterized in that: Long strips (230) are arranged on the opposite side walls of the filter cavity (200), and sliding grooves are arranged on the long strips (230). The two sides of the filter plate (220) slide and extend into the corresponding sliding grooves. The outer side walls of the filter box (100) are arranged on the opposite side walls for positioning the filter plate (220). The locking assembly comprises a locking block (140), and a locking cavity (400) is arranged in the locking block (140) along its length direction. A retractable locking rod (300) is arranged in the locking cavity (400), and one end of the locking rod (300) extends into the filter plate (220) for positioning the filter plate (220). A limiting assembly for limiting the locking rod (300) is also arranged in the locking cavity (400).

2. A filter device for municipal water supply and drainage according to claim 1, characterized in that: The locking cavity (400) is provided with openings at both ends, a lock cylinder (310) is provided at one end of the opening, a lock rod (300) extends through the lock cylinder (310), an abutment ring (430) is provided on the lock rod (300) at the other end of the opening and is located and moves in the locking cavity (400), a first spring (440) is provided on the lock rod (300) between the abutment ring (430) and the lock cylinder (310), and the first spring (440) is used to push one end of the lock rod (300) to extend into the side wall of the filter plate (220).

3. A filter device for municipal water supply and drainage according to claim 2, characterized in that: A vertical locking cavity (400) is provided in the locking block (140) with a placement cavity (450) which is in communication with the locking cavity (400). The limiting assembly includes a limiting column (510) which is arranged in the placement cavity (450) via a third spring (520). The third spring (520) is used to push the limiting column (510) upward so that the limiting column (510) cooperates with the abutment ring (430) to realize the retraction of the locking rod (300) in the locking cavity (400).

4. A filter device for municipal water supply and drainage according to claim 3, characterized in that: The parallel locking rod (300) in the locking block (140) is also provided with a cavity that passes through the placement cavity (450); the limiting column (510) is provided with an installation cavity (610) corresponding to the cavity; a first inclined surface (600) is provided on the bottom wall of the installation cavity (610); a slidable driving rod (350) is provided in the cavity and one end of the driving rod (350) extends into the installation cavity (610); a second inclined surface (460) that is compatible with the first inclined surface (600) is provided on the end of the driving rod (350) that extends into the installation cavity (610); the driving rod (350) slides into the cavity to drive the second inclined surface (460) to squeeze the first inclined surface (600), thereby realizing the downward movement of the limiting column (510).

5. A filter device for municipal water supply and drainage according to claim 2, characterized in that: The lock cylinder (310) is slidably installed in the locking cavity (400) and one end thereof extends out of the locking cavity (400). A retaining ring (330) is provided on the extended end of the lock cylinder (310). A second spring (320) is provided on the lock cylinder (310) between the retaining ring (330) and the side wall of the locking block (140). The second spring (320) is used to push the lock cylinder (310) to extend out of the locking block (140). The retaining ring (330) is connected to the driving rod (350) via the driving plate (340).

6. A filter device for municipal water supply and drainage according to claim 5, characterized in that: A sliding groove (410) is provided on the outer wall of the lock cylinder (310) along its length direction, and a connecting block (420) is provided on the side wall of the locking cavity (400) and is located and slidable in the sliding groove (410).

7. A filter device for municipal water supply and drainage according to claim 4, characterized in that: A limiting block (630) is provided on the upper end surface of the limiting column (510), a third inclined surface (620) is provided on the limiting block (630), and a fourth inclined surface (500) matched with the third inclined surface (620) is provided on the outer side wall of the abutting ring (430).

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