Domestic sewage grid grit chamber

Abstract

The utility model discloses a domestic sewage grating grit chamber, and relates to the technical field of domestic sewage grating grit chambers, the domestic sewage grating grit chamber comprises a grit chamber and a sand pushing mechanism, lifting mechanisms are mounted on the upper surfaces of the two sides of the grit chamber, grating filtering mechanisms are mounted on the upper surfaces of the lifting mechanisms, and each grating filtering mechanism comprises a top plate; the two ends of the lower surface of the top plate are fixedly connected with springs, the ends, away from the top plate, of the springs are fixedly connected with a connecting plate, the two ends of the lower surface of the connecting plate are fixedly connected with vertical plates, the ends, away from the connecting plate, of the vertical plates extend into the inner side wall of the grit chamber and then are fixedly connected with grids, and a vibration motor is installed in the middle of the lower surface of the connecting plate; an overflow pipe fixedly communicates with the middle of the inner wall of the left side of the grit chamber, an annular threaded groove is formed in the outer wall of the left side, close to the overflow pipe, of the grit chamber, a sleeve is in threaded connection with the inner surface of the annular threaded groove, and a filter screen is fixedly connected to an opening in the left end of the sleeve; through cooperation of the structures, the sewage discharge and sand setting effects are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of domestic sewage grille grit settling tanks, in particular to a domestic sewage grille grit settling tank. Background Art

[0002] Sewage refers to the water discharged from life and production that has been polluted to a certain extent. Water that has lost its original use function is simply called sewage. Sewage contains not only sediment but also some large particles, such as leaves, paper, cloth, plastic bags and other suspended matter and large solid pollutants. If these pollutants directly enter the subsequent treatment unit, they may damage the machine pump or process pipeline.

[0003] The utility model with the announcement number CN212790103U discloses a domestic sewage screen sand settling tank, including a sand settling tank, bases are fixedly arranged on the left and right sides of the bottom of the sand settling tank, a water inlet pipe is fixedly arranged on the top of the right wall of the sand settling tank, a drain pipe is fixedly arranged on the left wall of the sand settling tank, a receiving groove is opened at the bottom of the right wall of the inner cavity of the sand settling tank, an outer casing corresponding to the receiving groove is fixedly arranged on the right wall of the sand settling tank, a guide plate is slidably arranged in the outer casing, a protection box is fixedly arranged on the right end of the outer casing, a first motor is fixedly arranged in the protection box, and the first motor A screw is fixedly assembled on the output end, and the other end of the screw extends to the inner cavity of the guide plate and is screwed and assembled with the guide plate, and a pushing plate matched with the accommodating groove is fixedly assembled on the left end of the guide plate, and a sand discharge pipe is fixedly assembled on the left side of the bottom of the sand settling tank, and a mounting seat corresponding to the drain pipe is fixedly arranged on the left side wall of the inner cavity of the sand settling tank, and a grille is screwed on the outer end of the mounting seat, and a second motor is fixedly arranged on the left side wall of the sand settling tank, and the output end of the second motor extends to the inner cavity of the sand settling tank and is fixedly assembled with a mounting cylinder, and a cleaning brush matched with the grille is evenly fixedly assembled on the outer wall of the mounting cylinder.

[0004] In the process of implementing this application, it was found that the technology has the following problems: when the sewage is treated for sand settling in the above patent documents, the sewage is directly poured into the sand settling tank for sedimentation, and the sand settling tank is closed. During the treatment, the sewage will contain some floating garbage, which may float on the water surface. When the sewage overflows from the drain pipe, these floating objects may stick to the grille on the left wall, affecting the discharge of sewage from the drain pipe; on the other hand, although the cleaning brush can be used to clean the grille in the above patents, the cleaning brush is set on the inner wall of the sealed sand settling tank after all. Once used for a long time, the cleaning brush will become dirty and even entangled with some suspended matter, and the grille cannot be cleaned well, which may cause the grille to be blocked later, thereby affecting the sewage discharge and sand settling effect.

[0005] For this reason, a domestic sewage screen sand settling tank is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a domestic sewage grid sand settling tank in order to improve the sewage discharge and sand settling effects.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A domestic sewage screen sand settling tank, comprising a sand settling tank and a sand pushing mechanism, wherein lifting mechanisms are installed on the upper surfaces of both sides of the sand settling tank, a screen filter mechanism is installed on the upper surface of the lifting mechanism, the screen filter mechanism comprises a top plate, springs are fixedly connected to both ends of the lower surface of the top plate, an end of the spring away from the top plate is fixedly connected to a connecting plate, vertical plates are fixedly connected to both ends of the lower surface of the connecting plate, an end of the vertical plate away from the connecting plate extends into the inner wall of the sand settling tank and is fixedly connected to the screen, and a vibration motor is installed in the middle of the lower surface of the connecting plate;

[0009] An overflow pipe is fixedly connected to the middle of the left inner wall of the sand settling tank, a sealing gasket is bonded to the outer surface of the overflow pipe, a solenoid valve is installed at the right end opening of the overflow pipe, an annular threaded groove is opened on the left outer wall of the sand settling tank near the overflow pipe, a sleeve is threadedly connected to the inner surface of the annular threaded groove, and the inner surface of the sleeve is in contact with the outer surface of the sealing gasket, and a filter is fixedly connected to the left end opening of the sleeve.

[0010] Furthermore, the lifting mechanism includes a load-bearing plate, which is fixedly connected to the upper outer wall of the sand settling tank. The upper surface of the load-bearing plate is fixedly connected to a hydraulic cylinder. A lifting column is installed at the output end of the upper surface of the hydraulic cylinder. The end of the lifting column away from the hydraulic cylinder is fixedly connected to both ends of the lower surface of the top plate.

[0011] Furthermore, the inner wall of the left lower end of the sand settling tank is fixedly connected to a sand discharge groove, and a valve is installed on the outer surface of the sand discharge groove.

[0012] Furthermore, the sand pushing mechanism includes a cylinder, which is fixedly connected to the right outer wall of the sand settling tank, and the inner wall of the cylinder is fixedly connected to an electric cylinder, a piston rod is installed at the output end of the electric cylinder, and the end of the piston rod away from the electric cylinder is fixedly connected to a push rod, and the end of the push rod away from the piston rod is fixedly connected to a sand pushing plate.

[0013] Furthermore, a second sealing gasket is bonded to the outer surface of the push rod, and the outer surface of the second sealing gasket is in contact with the inner surface of the cylinder.

[0014] Furthermore, input ends of the electric cylinder and the vibration motor are electrically connected to an external power source.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. In the utility model, after the domestic sewage is introduced into the grit chamber, after the sewage falls into the grit chamber, the grille can filter the larger impurities and some floating objects in the sewage; at the same time, the spring is used and the vibration motor is started to drive the grille to vibrate through the vertical plate to prevent floating objects or other larger debris from piling up and affecting the sewage from passing through the grille; and when there are many larger impurities and floating objects on the upper surface of the grille, the lifting mechanism can be used to lift the grille to the outside for cleaning; through the cooperation of the above structures, the sedimentary sand in the sewage can be separated from the floating objects and larger impurities, which is convenient for the subsequent discharge of the sewage after the grit is settled.

[0017] 2. In the utility model, after the sleeve is rotated and inserted into the annular thread groove, the inner surface of the sleeve can be fitted with the outer surface of the sealing gasket 1. At this time, the sealing gasket 1 can improve the sealing between the sleeve and the sleeve. The solenoid valve is opened to allow the overflow sewage after sand settling to be discharged from the overflow pipe and discharged to the outside through the filter screen, and the filter screen can block some deposited sand. When the filter screen is blocked, the sleeve can be rotated to be removed for cleaning and then reinstalled. The cooperation of the above structure improves the sewage discharge and sand settling effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0021] Figure 4 It is a structural schematic diagram of the sand pushing mechanism in the utility model.

[0022] Markings in the figure: 1-sand settling tank, 2-sand pushing mechanism, 3-lifting mechanism, 4-grid filtering mechanism, 11-sand discharge trough, 12-valve, 13-annular threaded groove, 14-overflow pipe, 15-solenoid valve, 16-sealing gasket 1, 17-casing, 18-filter screen, 21-cylinder, 22-electric cylinder, 23-piston rod, 24-push rod, 25-sealing gasket 2, 26-sand pushing plate, 31-load-bearing plate, 32-hydraulic cylinder, 33-lifting column, 41-top plate, 42-spring, 43-connecting plate, 44-vibration motor, 45-vertical plate, 46-grid. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] Reference Figure 1-Figure 4 A domestic sewage screen sand settling tank comprises a sand settling tank 1 and a sand pushing mechanism 2. Lifting mechanisms 3 are installed on the upper surfaces of both sides of the sand settling tank 1. A screen filter mechanism 4 is installed on the upper surface of the lifting mechanism 3. The screen filter mechanism 4 comprises a top plate 41. Springs 42 are fixedly connected to both ends of the lower surface of the top plate 41. One end of the spring 42 away from the top plate 41 is fixedly connected to a connecting plate 43. Both ends of the lower surface of the connecting plate 43 are fixedly connected to vertical plates 45. One end of the vertical plate 45 away from the connecting plate 43 extends into the inner wall of the sand settling tank 1 and is fixedly connected to a screen 46. A vibration motor 44 is installed in the middle of the lower surface of the connecting plate 43. The input end of the vibration motor 44 is electrically connected to an external power supply. After the domestic sewage is introduced into the grit chamber 1, after the sewage falls into the grit chamber 1, the grille 46 can filter the larger impurities and some floating objects in the sewage; at the same time, the spring 42 is used and the vibration motor 44 is started to drive the connecting plate 43 to drive the grille 46 to vibrate through the vertical plate 45 to prevent floating objects or other larger debris from piling up and affecting the sewage from passing through the grille 46; and when there are many larger impurities and floating objects on the upper surface of the grille 46, the lifting mechanism 3 can be used to lift the grille 46 to the outside for cleaning; through the cooperation of the above structure, the sedimentary sand in the sewage can be separated from the floating objects and larger impurities, so as to facilitate the subsequent discharge of the sewage after the grit is settled.

[0025] Reference Figure 1-Figure 4 The lifting mechanism 3 includes a load-bearing plate 31, which is fixedly connected to the upper outer wall of the sand settling tank 1. A hydraulic cylinder 32 is fixedly connected to the upper surface of the load-bearing plate 31. A lifting column 33 is installed at the upper surface output end of the hydraulic cylinder 32. The end of the lifting column 33 away from the hydraulic cylinder 32 is fixedly connected to the two ends of the lower surface of the top plate 41. Specifically, when there are many large impurities and floating objects on the upper surface of the grille 46, the hydraulic cylinder 32 can be started to make the lifting column 33 drive the top plate 41 to move upward, and then lift the grille 46 to the outside for cleaning.

[0026] Reference Figure 1-Figure 4The middle of the left inner wall of the sand settling tank 1 is fixedly connected with an overflow pipe 14, and a sealing gasket 16 is bonded to the outer surface of the overflow pipe 14. A solenoid valve 15 is installed at the right end opening of the overflow pipe 14. An annular thread groove 13 is opened on the left outer wall of the sand settling tank 1 near the overflow pipe 14. The inner surface of the annular thread groove 13 is threadedly connected with a sleeve 17, and the inner surface of the sleeve 17 is in contact with the outer surface of the sealing gasket 16. A filter screen 18 is fixedly connected to the left end opening of the sleeve 17; specifically, the sleeve 17 is rotated and inserted into the annular After the threaded groove 13, the inner surface of the sleeve 17 can be fitted with the outer surface of the sealing gasket 16. At this time, the sealing gasket 16 can improve the sealing between the sleeve 17, and the solenoid valve 15 can be opened to allow the overflow sewage after sand settling to be discharged from the overflow pipe 14 and discharged to the outside through the filter screen 18, and the filter screen 18 can block some deposited sand. When the filter screen 18 is blocked, the sleeve 17 can be rotated to be removed for cleaning and then reinstalled; the cooperation of the above structure can improve the sewage discharge and sand settling effects.

[0027] Reference Figure 1-Figure 4 The inner wall of the lower left end of the sand settling tank 1 is fixedly connected with a sand discharge groove 11, and a valve 12 is installed on the outer surface of the sand discharge groove 11. The sand pushing mechanism 2 includes a cylinder 21, and the cylinder 21 is fixedly connected to the outer wall of the right side of the sand settling tank 1. The inner wall of the cylinder 21 is fixedly connected to an electric cylinder 22, and a piston rod 23 is installed at the output end of the electric cylinder 22. The end of the piston rod 23 away from the electric cylinder 22 is fixedly connected to a push rod 24, and the end of the push rod 24 away from the piston rod 23 is fixedly connected to a sand push plate 26. The outer surface of the push rod 24 A sealing gasket 25 is bonded to the surface, and the outer surface of the sealing gasket 25 fits with the inner surface of the cylinder 21. The input end of the electric cylinder 22 is electrically connected to the external power supply. Specifically, when the sand deposited at the bottom of the sand settling tank 1 needs to be discharged, the valve 12 can be opened, and then the electric cylinder 22 can be started to make the piston rod 23 drive the push rod 24 to move to the left. Moving the push rod 24 to the left can drive the sand pushing plate 26 to slide along the inner bottom surface of the sand settling tank 1, thereby discharging the sand deposited at the bottom of the sand settling tank 1 from the sand discharge trough 11.

[0028] The implementation principle of a domestic sewage screen grit chamber embodiment of the present application is:

[0029] When using the device, first connect to an external power source, and then guide the domestic sewage into the grit chamber 1. After the sewage falls into the grit chamber 1, the grille 46 can filter larger impurities and some floating objects in the sewage; at the same time, the spring 42 is used to cooperate and start the vibration motor 44 to make the connecting plate 43 drive the grille 46 to vibrate through the vertical plate 45 to prevent floating objects or other larger debris from piling up and affecting the sewage from passing through the grille 46; and when there are many larger impurities and floating objects on the upper surface of the grille 46, the hydraulic cylinder 32 can be started to make the lifting column 33 drive the top plate 41 to move upward, and then lift the grille 46 to the outside for cleaning; through the cooperation of the above structure, the sedimentary sand in the sewage can be separated from the floating objects and larger impurities, which is convenient for the subsequent discharge of the sewage after the sand settling.

[0030] On the other hand, after the sleeve 17 is rotated and inserted into the annular thread groove 13, the inner surface of the sleeve 17 can be fitted with the outer surface of the sealing gasket 16. At this time, the sealing gasket 16 can improve the sealing between the sleeve 17, and the solenoid valve 15 can be opened to allow the overflow sewage after sand settling to be discharged from the overflow pipe 14 and discharged to the outside through the filter screen 18, and the filter screen 18 can block some deposited sand. When the filter screen 18 is blocked, the sleeve 17 can be rotated to be removed for cleaning and then reinstalled; the cooperation of the above structure can improve the sewage discharge and sand settling effects.

[0031] When the sand deposited at the bottom of the sand settling tank 1 needs to be discharged, the valve 12 can be opened, and then the electric cylinder 22 can be started to make the piston rod 23 drive the push rod 24 to move to the left. Moving the push rod 24 to the left can drive the sand pushing plate 26 to slide along the inner bottom surface of the sand settling tank 1, thereby discharging the sand deposited at the bottom of the sand settling tank 1 from the sand discharge trough 11.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A domestic sewage screen grit chamber, comprising a grit chamber (1) and a sand pushing mechanism (2), characterized in that: A lifting mechanism (3) is installed on the upper surfaces of both sides of the grit chamber (1), a grille filtering mechanism (4) is installed on the upper surface of the lifting mechanism (3), the grille filtering mechanism (4) comprises a top plate (41), springs (42) are fixedly connected to both ends of the lower surface of the top plate (41), one end of the spring (42) away from the top plate (41) is fixedly connected to a connecting plate (43), vertical plates (45) are fixedly connected to both ends of the lower surface of the connecting plate (43), one end of the vertical plate (45) away from the connecting plate (43) extends into the inner wall of the grit chamber (1) and is fixedly connected to a grille (46), and a vibration motor (44) is installed in the middle of the lower surface of the connecting plate (43); An overflow pipe (14) is fixedly connected to the middle of the left inner wall of the grit chamber (1), a sealing gasket (16) is bonded to the outer surface of the overflow pipe (14), a solenoid valve (15) is installed at the right end opening of the overflow pipe (14), an annular thread groove (13) is opened on the left outer wall of the grit chamber (1) close to the overflow pipe (14), a sleeve (17) is threadedly connected to the inner surface of the annular thread groove (13), and the inner surface of the sleeve (17) is in contact with the outer surface of the sealing gasket (16), and a filter screen (18) is fixedly connected to the left end opening of the sleeve (17).

2. A domestic sewage screen grit chamber as claimed in claim 1, characterized in that: The lifting mechanism (3) comprises a load-bearing plate (31), the load-bearing plate (31) being fixedly connected to the upper outer wall of the grit chamber (1), the upper surface of the load-bearing plate (31) being fixedly connected to a hydraulic cylinder (32), a lifting column (33) being installed at the output end of the upper surface of the hydraulic cylinder (32), and one end of the lifting column (33) away from the hydraulic cylinder (32) being fixedly connected to both ends of the lower surface of the top plate (41).

3. A domestic sewage screen grit chamber as claimed in claim 1, characterized in that: The inner wall of the lower left end of the grit chamber (1) is fixedly connected to a sand discharge groove (11), and a valve (12) is installed on the outer surface of the sand discharge groove (11).

4. A domestic sewage screen grit chamber as claimed in claim 1, characterized in that: The sand pushing mechanism (2) comprises a cylinder (21), the cylinder (21) being fixedly connected to the right outer wall of the sand settling tank (1), the inner wall of the cylinder (21) being fixedly connected to an electric cylinder (22), the output end of the electric cylinder (22) being provided with a piston rod (23), the end of the piston rod (23) away from the electric cylinder (22) being fixedly connected to a push rod (24), and the end of the push rod (24) away from the piston rod (23) being fixedly connected to a sand pushing plate (26).

5. A domestic sewage screen grit chamber as claimed in claim 4, characterized in that: A second sealing gasket (25) is bonded to the outer surface of the push rod (24), and the outer surface of the second sealing gasket (25) is in contact with the inner surface of the cylinder (21).

6. A domestic sewage screen grit chamber as claimed in claim 5, characterized in that: Input ends of the electric cylinder (22) and the vibration motor (44) are electrically connected to an external power source.

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