Domestic sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treatment device which comprises a pretreatment mechanism used for intercepting large-size solid garbage in sewage; the solid-liquid separation mechanism is arranged under the pretreatment mechanism, is communicated with the bottom of the pretreatment mechanism and is used for filtering smaller particles. According to the domestic sewage treatment device, through cooperative arrangement of the screening box, the grating and the material pushing unit, large-size solid garbage in domestic sewage can be intercepted, the device is prevented from being blocked, the first motor is started to drive the push plate to push out the solid garbage accumulated on the grating from the discharging opening, and the labor intensity of workers is reduced. Through cooperative arrangement of a separation box, an annular filter screen, a gear ring, a second motor, a third belt pulley with teeth, a fourth belt pulley with teeth, a round rod, a second transmission belt and a gear, the annular filter screen further intercepts and removes some smaller solid particles and suspended solids in sewage, and more favorable conditions are provided for subsequent biological treatment or deep treatment.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treatment device. Background Art

[0002] Domestic sewage refers to the water that has been polluted to a certain extent and has lost its original use function during the daily life and production process of residents. If the sewage is directly discharged to the outside, it will cause serious pollution to the environment and is not in line with the concept of environmental protection. Therefore, the sewage needs to be treated accordingly before being discharged;

[0003] Based on the findings in the prior art, domestic sewage often includes some solid waste, which can easily cause blockage if directly put into the domestic sewage treatment device for filtration. Manual cleaning is also time-consuming and labor-intensive. In addition, there are many solid debris in the sewage, which can easily affect the subsequent treatment of the sewage. Summary of the invention

[0004] The object of the present invention is to provide a domestic sewage treatment device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A domestic sewage treatment device, comprising:

[0007] Pre-treatment mechanism to intercept larger solid waste in sewage;

[0008] A solid-liquid separation mechanism is arranged directly below the pretreatment mechanism and is connected to the bottom of the pretreatment mechanism to filter smaller particles;

[0009] The storage box is arranged below the solid-liquid separation mechanism, with its bottom surface in contact with the ground, and is used for storing the solid separated by the solid-liquid separation mechanism.

[0010] Preferably: the pre-treatment mechanism comprises:

[0011] The screening box has support columns fixedly connected to the four corners of the bottom surface, a discharge port is opened on the end side, and a drainage pipe is set on the bottom surface;

[0012] A guide groove, located directly below the discharge port, with a side wall fixedly connected to the side wall of the screening box;

[0013] A grille, disposed inside the screening box, for intercepting solid waste;

[0014] The pushing unit is rotatably connected to the interior of the screening box and is located above the grille.

[0015] Furthermore, the outer wall of the screening box near the discharge port is rotatably connected to a box door through a hinge, and the two outer sides of the box door near the bottom are rotatably connected to an electric telescopic rod, and the other ends of the two electric telescopic rods are respectively rotatably connected to the two outer side walls of the screening box.

[0016] Further, the pushing unit comprises:

[0017] A screw rod 1, one end of which is rotatably connected to the inner wall of the screening box, and the other end of which passes through the end of the outer wall of the screening box and is sleeved and fixed with a toothed pulley 2;

[0018] The second screw rod is symmetrical with the first screw rod, one end of which is rotatably connected to the inner wall of the screening box, and the other end of which penetrates through the end of the outer wall of the screening box and is sleeved and fixed with a toothed pulley one;

[0019] The push plate has two moving blocks symmetrically fixedly connected to the top surface, the two moving blocks are respectively screwed and connected to the outer walls of the screw rod 1 and the screw rod 2, and the bottom surface of the push plate contacts the inner bottom surface of the grille.

[0020] Furthermore, the outer wall of the screening box is fixedly connected with a mounting seat, the top surface of the mounting seat is fixedly connected with a motor 1, the motor shaft of the motor 1 is transmission connected to the end of the screw rod 1, and the toothed pulley 1 and the toothed pulley 2 are transmission connected through a transmission belt 1.

[0021] Further, the solid-liquid separation mechanism comprises:

[0022] The separation box has a water inlet on the top surface connected to the drain pipe, and a water outlet pipe is arranged on the outer wall near the bottom;

[0023] The bottom surface of the annular filter screen is rotatably connected to the inner bottom surface of the separation box, and a gear ring is sleeved and fixed on the outer wall.

[0024] Furthermore, the outer wall of the separation box is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a motor 2, the motor shaft of the motor 2 is transmission-connected to a toothed pulley 3, the toothed pulley 3 is transmission-connected to a toothed pulley 4 through a transmission belt 2, the inner wall of the toothed pulley 4 is plugged and fixed with a round rod rotatably connected to the fixing frame, the bottom end of the round rod is fixedly connected to a gear, and the gear and the gear ring are meshed for transmission.

[0025] Furthermore, the bottom surface of the fixing frame is fixedly connected with an electric telescopic rod 2 extending into the annular filter, the bottom end of the electric telescopic rod 2 is fixedly connected with a baffle, and the outer arc surface of the baffle is in contact with the inner arc surface of the annular filter.

[0026] Preferably, the top surface of the storage box is fixedly connected to the bottom ends of four support columns, a slide groove is provided inside the storage box, a sundries box is slidably inserted into the slide groove, and two handles are symmetrically fixed to the outer wall of the sundries box.

[0027] Preferably, the top surface of the storage box and the bottom surface of the separation box are both provided with round holes matching the size of the baffle.

[0028] The present invention also provides an operating method of a domestic sewage treatment device, which specifically comprises the following steps:

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Through the coordination of the screening box, the grille, the screw rod 1, the screw rod 2, the toothed pulley 1, the toothed pulley 2, the transmission belt 1, the motor 1 and the push plate, the larger solid waste in the domestic sewage can be intercepted to avoid clogging the device. Then, starting the motor 1 can drive the push plate to move along the screw rod 1 and the screw rod 2, so that the solid waste accumulated on the grille can be pushed out from the discharge port, reducing the labor intensity of the workers.

[0031] 2. Through the matching arrangement among the separation box, the annular filter, the gear ring, the second motor, the third toothed pulley, the fourth toothed pulley, the round rod, the second transmission belt and the gear, the second motor can be started to make the gear mesh with the gear ring for transmission, so that the annular filter drives the sewage in the annular filter to make centrifugal motion, further intercepting and removing slightly smaller solid particles and suspended matter in the sewage, improving the clarity and water quality of the effluent, and providing more favorable conditions for subsequent biological treatment or deep treatment. Then, through the matching arrangement among the second electric telescopic rod, the baffle and the storage box, the intercepted solid particles can fall into the storage box, which is convenient for workers to clean up. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a domestic sewage treatment device of the present invention;

[0033] Figure 2 It is a schematic diagram of the internal structure of a domestic sewage treatment device of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the pretreatment mechanism in the present invention;

[0035] Figure 4 It is a schematic diagram of the combined structure of the solid-liquid separation mechanism and the storage box in the present invention;

[0036] Figure 5 It is a schematic diagram of the internal structure of the solid-liquid separation mechanism in the present invention.

[0037] In the figure: 100, pre-treatment mechanism; 110, screening box; 111, support column; 112, discharge port; 113, guide groove; 114, mounting seat; 115, drain pipe; 120, box door; 121, electric telescopic rod 1; 130, push unit; 131, screw rod 1; 132, screw rod 2; 133, toothed pulley 1; 134, toothed pulley 2; 135, transmission belt 1; 136, motor 1; 137, push plate; 140, grid Grid; 200, solid-liquid separation mechanism; 210, separation box; 211, water inlet; 212, water outlet pipe; 220, annular filter; 221, gear ring; 230, fixing frame; 231, motor 2; 232, toothed pulley 3; 233, toothed pulley 4; 234, round rod; 235, transmission belt 2; 236, gear; 237, electric telescopic rod 2; 238, baffle; 300, storage box; 310, sundries box; 311, handle. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 5 In an embodiment of the present invention, a domestic sewage treatment device includes a pretreatment mechanism 100 for intercepting larger solid waste in sewage, a solid-liquid separation mechanism 200 is arranged directly below the pretreatment mechanism 100, the solid-liquid separation mechanism 200 is connected to the bottom of the pretreatment mechanism 100, and is used to filter smaller particles, a storage box 300 is arranged below the solid-liquid separation mechanism 200, the bottom surface of the storage box 300 is in contact with the ground, and is used to store solids separated by the solid-liquid separation mechanism 200, and the pretreatment mechanism 100 includes A screening box 110, wherein four corners of the bottom surface of the screening box 110 are fixedly connected with support columns 111, a discharge port 112 is opened at the end side of the screening box 110, a drainage pipe 115 is arranged on the bottom surface of the screening box 110, a guide groove 113 is arranged directly below the discharge port 112, and the side wall of the guide groove 113 is fixedly connected to the side wall of the screening box 110; a grille 140 for intercepting solid waste is arranged inside the screening box 110, and a pushing unit 130 is rotatably connected to the top of the grille 140 inside the screening box 110.

[0040] Specifically, domestic sewage first enters the screening box 110. The grille 140 provided in the screening box 110 intercepts and removes larger solid waste in the sewage, such as garbage bags, paper, etc. After the larger solid waste is removed, the domestic sewage flows into the solid-liquid separation mechanism 200 through the drain pipe 115 for solid-liquid separation. The residual water on the solid waste remaining on the grille 140 will gradually disappear, thereby reducing the water content of the intercepted solid waste, which is convenient for subsequent treatment.

[0041] Embodiment 1

[0042] like Figure 3 As shown, in this embodiment, the outer wall of the screening box 110 near the discharge port 112 is rotatably connected to the box door 120 through a hinge, and the two outer sides of the box door 120 near the bottom are rotatably connected to the electric telescopic rod 121, and the other ends of the two electric telescopic rods 121 are respectively rotatably connected to the two outer side walls of the screening box 110, and the pushing unit 130 includes a screw rod 131 and a screw rod 2 132, one end of the screw rod 131 is rotatably connected to the inner wall of the screening box 110, and the other end passes through the end of the outer wall of the screening box 110 and is sleeved and fixed with a toothed pulley 2 134, the screw rod 2 132 is symmetrical with the screw rod 1 131, and one end is connected to the screening box 1 The inner wall of the screening box 110 is rotatably connected, and the other end passes through the end of the outer wall of the screening box 110 and is sleeved and fixed with a toothed pulley 133; the outer walls of the screw rod 131 and the screw rod 2 132 are both screwed and connected with moving blocks, and a push plate 137 is fixedly connected between the two moving blocks, and the bottom surface of the push plate 137 contacts the inner bottom surface of the grid 140, the outer wall of the screening box 110 is fixedly connected with a mounting seat 114, and the top surface of the mounting seat 114 is fixedly connected with a motor 136, the motor shaft of the motor 136 is transmission-connected to the end of the screw rod 131, and the toothed pulley 133 and the toothed pulley 2 134 are transmission-connected through a transmission belt 135.

[0043] In this embodiment, the push plate 137 is usually close to the inner wall of the screening box 110 away from the discharge port 112, and the two electric telescopic rods 121 are controlled to extend to expand the box door 120, and the motor 136 is started, so that the motor shaft of the motor 136 is transmitted to the screw rod 131, so that the push plate 137 moves along the screw rod 131 toward the discharge port 112, thereby pushing the solid waste accumulated on the grille 140 toward the discharge port 112, and finally the solid waste leaves the screening box 110 along the guide groove 113, avoiding the complexity of manual cleaning. The toothed pulley 134, the toothed pulley 133 and the transmission belt 135 form a synchronous pulley group for use, which is used to make the screw rod 132 and the screw rod 131 rotate synchronously. The synchronous pulley group is a technology well known to technicians in this technical field and is a commonly used device in this technical field, which will not be described here.

[0044] like Figure 2 and Figure 4-5 As shown, in this embodiment, the solid-liquid separation mechanism 200 includes a separation box 210, the top surface of the separation box 210 is provided with a water inlet 211 connected to the drain pipe 115, the outer wall of the separation box 210 near the bottom is provided with a water outlet pipe 212, the inner bottom surface of the separation box 210 is rotatably connected to an annular filter screen 220, the outer wall of the annular filter screen 220 is sleeved and fixed with a gear ring 221, the outer wall of the separation box 210 is fixedly connected to a fixing frame 230, the fixing frame 230 is fixedly connected to a second motor 231, the motor shaft of the second motor 231 is transmission-connected to a toothed pulley three 232, The toothed pulley three 232 is connected to the toothed pulley four 233 through the transmission belt two 235. The inner wall of the toothed pulley four 233 is fixed with a round rod 234 that is rotatably connected to the fixed frame 230. The bottom end of the round rod 234 is fixedly connected with a gear 236. The gear 236 and the gear ring 221 are meshed for transmission. The bottom surface of the fixed frame 230 is fixedly connected with an electric telescopic rod two 237 that extends into the annular filter 220. The bottom end of the electric telescopic rod two 237 is fixedly connected with a baffle 238. The outer arc surface of the baffle 238 fits the inner arc surface of the annular filter 220.

[0045] During specific implementation, the domestic sewage treated by the pretreatment mechanism 100 falls into the annular filter 220 from the drain pipe 115, and the motor 231 is started, so that the motor shaft of the motor 231 is transmitted to the toothed pulley 3 232, and the toothed pulley 3 232 is transmitted to the toothed pulley 4 233 through the transmission belt 235, so that the gear 236 rotates and meshes with the ring gear 221 for transmission, so that the annular filter 220 rotates and performs centrifugal motion, and slightly smaller solid particles and suspended matter are intercepted inside the annular filter 220, and the sewage filtered by the annular filter 220 is discharged from the outlet pipe 212, which is convenient for subsequent sewage treatment operations.

[0046] Embodiment 2

[0047] like Figure 5 As shown, in this embodiment, the top surface of the storage box 300 is fixedly connected to the bottom ends of the four support columns 111, a slide groove is provided inside the storage box 300, a sundries box 310 is slidably inserted into the slide groove, two handles 311 are symmetrically fixed to the outer wall of the sundries box 310, and a circular hole matching the size of the baffle 238 is provided on the top surface of the storage box 300 and the bottom surface of the separation box 210.

[0048] During specific implementation, when the electric telescopic rod 237 is in a retracted state, the bottom of the baffle 238 is flush with the bottom of the annular filter 220, so that the intercepted solid particles are retained in the annular filter 220. When the solid particles in the annular filter 220 accumulate to a certain amount, the electric telescopic rod 237 is controlled to extend downward and no longer block the annular filter 220. The baffle 238 is shaped like an inverted cone, so that the solid particles on the baffle 238 fall into the debris box 310 in the storage box 300 along the arc surface, making it convenient for subsequent workers to directly open the debris box 310 and take out the impurities.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A domestic sewage treatment device, characterized in that: include: A pre-treatment mechanism (100) is used to intercept larger solid waste in sewage; A solid-liquid separation mechanism (200) is disposed directly below the pretreatment mechanism (100) and is connected to the bottom of the pretreatment mechanism (100) for filtering smaller particles; The storage box (300) is arranged below the solid-liquid separation mechanism (200), with its bottom surface in contact with the ground, and is used to store the solid separated by the solid-liquid separation mechanism (200).

2. The domestic sewage treatment device according to claim 1, characterized in that: The pre-treatment mechanism (100) comprises: The screening box (110) has support columns (111) fixedly connected to the four corners of the bottom surface, a discharge port (112) is provided at the end side, and a drainage pipe (115) is provided on the bottom surface; A guide groove (113) is located directly below the discharge port (112), and a side wall thereof is fixedly connected to a side wall of the screening box (110); A grille (140) is disposed inside the screening box (110) and is used to intercept solid waste; The pushing unit (130) is rotatably connected to the inside of the screening box (110) and is located above the grid (140).

3. The domestic sewage treatment device according to claim 2, characterized in that: The outer wall of the screening box (110) above the material discharge port (112) is rotatably connected to a box door (120) via a hinge, and two outer sides of the box door (120) near the bottom are rotatably connected to electric telescopic rods (121), and the other ends of the two electric telescopic rods (121) are respectively rotatably connected to the two outer side walls of the screening box (110).

4. The domestic sewage treatment device according to claim 2, characterized in that: The pushing unit (130) comprises: A screw rod (131) has one end rotatably connected to the inner wall of the screening box (110), and the other end passes through the end of the outer wall of the screening box (110) and is sleeved and fixed with a toothed pulley (134); The second screw rod (132) is symmetrical to the first screw rod (131), one end of which is rotatably connected to the inner wall of the screening box (110), and the other end of which passes through the end of the outer wall of the screening box (110) and is sleeved and fixed with a toothed pulley (133); The push plate (137) has two movable blocks symmetrically fixedly connected to the top surface, and the two movable blocks are respectively screwed and connected to the outer walls of the first screw rod (131) and the second screw rod (132). The bottom surface of the push plate (137) contacts the inner bottom surface of the grille (140).

5. The domestic sewage treatment device according to claim 4, characterized in that: The outer wall of the screening box (110) is fixedly connected to a mounting seat (114), the top surface of the mounting seat (114) is fixedly connected to a motor 1 (136), the motor shaft of the motor 1 (136) is transmission-connected to the end of the screw rod 1 (131), and the toothed pulley 1 (133) and the toothed pulley 2 (134) are transmission-connected via a transmission belt 1 (135).

6. The domestic sewage treatment device according to claim 1, characterized in that: The solid-liquid separation mechanism (200) comprises: The separation box (210) has a water inlet (211) on the top surface thereof connected to the drain pipe (115), and a water outlet pipe (212) is arranged on the outer wall near the bottom; The bottom surface of the annular filter screen (220) is rotatably connected to the inner bottom surface of the separation box (210), and a gear ring (221) is sleeved and fixed on the outer wall.

7. The domestic sewage treatment device according to claim 6, characterized in that: The outer wall of the separation box (210) is fixedly connected to a fixing frame (230), the fixing frame (230) is fixedly connected to a second motor (231), the motor shaft of the second motor (231) is transmission-connected to a third toothed pulley (232), the third toothed pulley (232) is transmission-connected to a fourth toothed pulley (233) via a second transmission belt (235), the inner wall of the fourth toothed pulley (233) is plugged and fixed with a round rod (234) rotationally connected to the fixing frame (230), the bottom end of the round rod (234) is fixedly connected to a gear (236), and the gear (236) and the gear ring (221) are meshed for transmission.

8. The domestic sewage treatment device according to claim 7, characterized in that: The bottom surface of the fixing frame (230) is fixedly connected to a second electric telescopic rod (237) extending into the annular filter (220), and the bottom end of the second electric telescopic rod (237) is fixedly connected to a baffle (238), and the outer arc surface of the baffle (238) is in contact with the inner arc surface of the annular filter (220).

9. The domestic sewage treatment device according to claim 1, characterized in that: The top surface of the storage box (300) is fixedly connected to the bottom ends of the four support columns (111), a slide groove is provided inside the storage box (300), a sundry box (310) is slidably inserted in the slide groove, and two handles (311) are symmetrically fixed to the outer wall of the sundry box (310).

10. The domestic sewage treatment device according to claim 9, characterized in that: The top surface of the storage box (300) and the bottom surface of the separation box (210) are both provided with circular holes matching the size of the baffle (238).

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