CN221267242U - Backflushing sand and stone filter - Google Patents

Abstract

The utility model relates to the field of filters, in particular to a backflushing sand filter which comprises an outer cylinder, a flushing mechanism and a disassembly and assembly mechanism, wherein the inner part of the upper end of the outer cylinder is provided with the rotatable flushing mechanism, the lower end of the outer cylinder is internally provided with a filter cover, an inner groove is formed in the filter cover, a filter cylinder is inserted into the inner groove, and the two sides of the lower end of the filter cylinder are provided with the disassembly and assembly mechanisms for independently installing or disassembling the filter cylinder. When the filter is backwashed, the motor is controlled to operate to drive the gear to rotate, the gear ring is meshed to drive the gear ring to rotate, the backwashed cleaning effect is achieved under the limit of the limit ring embedded in the limit groove, when the filter cylinder is required to be thoroughly cleaned, the clamping plate is driven to slide in the clamping groove and separate from the outer wall of the fixing rod by pulling the pulling plate twice in opposite directions, potential energy is generated by extrusion of the spring, and the filter cylinder is pulled downwards to separate from the inner groove to be independently disassembled, so that the filter cylinder is independently and thoroughly cleaned.

Description

Backflushing sand and stone filter

Technical Field

The utility model relates to the field of filters, in particular to a backflushing sand filter.

Background

The sand filter is a filter which is used for three-dimensional deep filtration by forming a sand bed by quartz sand with uniform particle size as a filtration carrier and is commonly used for primary filtration. The sand filter mainly adopts sand as a filter material for filtering, and the sand bed is three-dimensional, has stronger dirt capturing capability, and is suitable for deep well water filtration, agricultural water treatment, pretreatment of various water treatment processes and the like. The inside bilayer structure that adopts of backwash water sand filter, filter plate upper portion are sand bed and impurity reserve space, and the lower part is clear water circulation space. And a drain outlet is reserved at the bottom of the tank, so that dirt possibly deposited at the bottom of the tank can be removed from the bottom end at any time.

The existing backflushing filter has some defects: when the back flushing is needed, the water inlet end and the water outlet end connected with the filter are closed, then the back flushing nozzle is controlled to feed flushing liquid, the filter core is reversely flushed, and the flushed liquid is discharged from the independent liquid discharge pipe;

However, the existing backflushing nozzle is fixed in position, and when backflushing is performed, a backflushing water inlet always enters from one direction, so that covering type flushing cannot be performed on the periphery of the filter element, a backflushing blind area is caused, and the backflushing effect is influenced.

Disclosure of utility model

The utility model aims to provide a backflushing sand filter, which is used for solving the problems that the backflushing sand filter is fixed in position, a backflushing water inlet always enters from one direction during backflushing, covering flushing cannot be performed on the periphery of a filter element, a backflushing blind area is caused, and the backflushing effect is influenced.

Therefore, the utility model provides a backflushing sand filter, which comprises an outer cylinder, a flushing mechanism and a disassembly and assembly mechanism, wherein the inner part of the upper end of the outer cylinder is provided with the rotatable flushing mechanism, the lower end of the outer cylinder is internally provided with a filter cover, an inner groove is formed in the filter cover, a filter cylinder is inserted into the inner groove, and the two sides of the lower end of the filter cylinder are provided with the disassembly and assembly mechanisms for independently installing or disassembling the filter cylinder.

Preferably: the flushing mechanism comprises a water inlet pipe, a pipe groove is formed in the water inlet pipe, a pipe is embedded in the pipe groove in an inner rotating mode at the lower end of the pipe groove, a limit groove is formed in the side wall of the pipe groove, a limit ring is arranged on the outer wall of the upper end of the pipe, a toothed ring is sleeved on the outer wall of the middle section of the pipe, an outer plate is arranged on the outer wall of the right end of the water inlet pipe, a motor is arranged at the upper end of the outer plate, a gear is arranged at the lower end of the motor, and a spray pipe is arranged at the lower end of the pipe.

Preferably: the dismounting mechanism comprises a bottom groove and a clamping groove, wherein a fixing rod is arranged in the bottom groove, a spring is sleeved on the outer wall of the fixing rod, a clamping plate is sleeved on the outer side of the spring, a pulling plate is arranged at the lower end of the clamping plate, and the clamping groove is formed in the side wall of the lower end of the inner groove.

Preferably: the cross section size of the limiting groove is matched with the cross section size of the limiting ring.

Preferably: the toothed ring is meshed with the gear.

Preferably: the cross section size of the clamping plate is matched with the cross section size of the clamping groove.

Preferably: the cardboard is connected one end of spring, the other end of spring is connected at the kerve lateral wall.

When the filter is backwashed, the motor is controlled to operate to drive the gear to rotate, the gear ring is meshed to drive the gear ring to rotate, the embedded pipe is enabled to rotate in the pipe groove under the limit of the limit groove embedded in the limit ring, the spray pipe at the lower end is driven to rotate around the filter cover, cleaning water is sent into the pipe groove and the embedded pipe from the water inlet pipe, cleaning water is sprayed into the filter cover while the spray pipe rotates, sand and stone residues remained on the inner wall of the filter cylinder are backwashed, the backwashing cleaning effect is achieved, when the filter cylinder is required to be thoroughly cleaned, the pull plate is pulled for two times in opposite directions to drive the clamping plate to slide towards the outer wall of the fixed rod, potential energy is generated by extrusion of the spring, and the filter cylinder is pulled downwards to be separated from the inner groove, so that the filter cylinder can be independently and thoroughly cleaned.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is an enlarged view of part of the A of FIG. 1 in accordance with the present utility model;

Fig. 3 is an enlarged view of part B of fig. 1 in accordance with the present utility model.

In the figure:

1. An outer cylinder; 201. a water inlet pipe; 202. a tube groove; 203. embedding a pipe; 204. a limit groove; 205. a limiting ring; 206. a toothed ring; 207. an outer plate; 208. a motor; 209. a gear; 210. a spray pipe; 3. a filter cover; 4. an inner tank; 5. a filter cartridge; 601. a bottom groove; 602. a fixed rod; 603. a spring; 604. a clamping plate; 605. pulling a plate; 606. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, a recoil sand filter according to a preferred embodiment of the present utility model includes an outer cylinder 1, a flushing mechanism and a dismounting mechanism, wherein the rotatable flushing mechanism is disposed in the upper end of the outer cylinder 1, a filter cover 3 is mounted in the lower end of the outer cylinder 1, an inner groove 4 is formed in the filter cover 3, a filter cartridge 5 is inserted in the inner groove 4, and dismounting mechanisms for mounting or dismounting the filter cartridge 5 are disposed on two sides of the lower end of the filter cartridge 5.

It should be noted that: the scheme flushing mechanism and the dismounting mechanism improve the backflushing cleaning effect of the filter.

The flushing mechanism comprises a water inlet pipe 201, a pipe groove 202 is formed in the water inlet pipe 201, a pipe embedded 203 is rotatably arranged in the lower end of the pipe groove 202, a limiting groove 204 is formed in the side wall of the pipe groove 202, a limiting ring 205 is arranged on the outer wall of the upper end of the pipe embedded 203, a toothed ring 206 is sleeved on the outer wall of the middle section of the pipe embedded 203, an outer plate 207 is arranged on the outer wall of the right end of the water inlet pipe 201, a motor 208 is arranged at the upper end of the outer plate 207, a gear 209 is arranged at the lower end of the motor 208, and a spray pipe 210 is arranged at the lower end of the pipe embedded 203.

It should be noted that: this scheme is convenient for fully recoil washing to the filter core.

Wherein, the cross section size of the limit groove 204 is matched with the cross section size of the limit ring 205.

It should be noted that: this scheme is convenient for stable rotatory washing.

Wherein the toothed ring 206 intermeshes with a gear 209.

It should be noted that: this scheme efficient rotatory washing.

Example 2

Referring to fig. 1-3, the dismounting mechanism includes a bottom groove 601 and a clamping groove 606, a fixing rod 602 is mounted in the bottom groove 601, a spring 603 is sleeved on the outer wall of the fixing rod 602, a clamping plate 604 is sleeved on the outer side of the spring 603, a pull plate 605 is mounted at the lower end of the clamping plate 604, and the clamping groove 606 is formed in the side wall of the lower end of the inner groove 4.

It should be noted that: this scheme is convenient for dismantle alone washs high-efficiently.

Wherein, the cross-sectional dimension of the clamping plate 604 is matched with the cross-sectional dimension of the clamping groove 606.

It should be noted that: this scheme is convenient for firm installation.

Wherein, cardboard 604 connects the one end of spring 603, the other end of spring 603 is connected at the bottom tank 601 lateral wall.

It should be noted that: this scheme is convenient for efficient dismouting.

The working flow and principle of the utility model are as follows: when the filter is backwashed, the motor 208 is controlled to operate to drive the gear 209 to rotate, the gear ring 206 is meshed to drive the gear ring to rotate, the embedded pipe 203 rotates in the pipe groove 202 under the limit of the limit groove 204 embedded in the limit ring 205, the spray pipe 210 at the lower end is driven to rotate around the filter cover 3, cleaning water is sent into the pipe groove 202 and the embedded pipe 203 from the water inlet pipe 201, cleaning water is sprayed into the filter cover 3 while the spray pipe 210 rotates, residual sand and stone residues on the inner wall of the filter cylinder 5 are backwashed, the backwashed cleaning effect is achieved, when the filter cylinder 5 is required to be thoroughly cleaned, the clamp plate 604 is driven to slide towards the outer wall of the fixed rod 602 by pulling the pull plate 605 in opposite directions, potential energy is generated by extruding the spring 603, and the filter cylinder 5 is pulled downwards to be separated from the inner groove 4, and the filter cylinder can be independently disassembled.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims (7)

1. A backflushing sand filter, characterized by: including urceolus (1), washing mechanism and dismouting mechanism, urceolus (1) upper end inside is provided with rotatable washing mechanism, urceolus (1) lower extreme internally mounted has filter mantle (3), inside groove (4) have been seted up in filter mantle (3), inside cartridge (5) of having inserted of inside groove (4), cartridge (5) lower extreme both sides are provided with the dismouting mechanism that is used for installing its alone or dismantle.

2. A backflushing sand filter according to claim 1 wherein: the flushing mechanism comprises a water inlet pipe (201), a pipe groove (202) is formed in the water inlet pipe (201), a pipe embedded (203) is installed in the pipe groove (202) through inner rotation, a limit groove (204) is formed in the side wall of the pipe groove (202), a limit ring (205) is installed on the outer wall of the upper end of the pipe embedded (203), a toothed ring (206) is sleeved on the outer wall of the middle section of the pipe embedded (203), an outer plate (207) is installed on the outer wall of the right end of the water inlet pipe (201), a motor (208) is installed on the upper end of the outer plate (207), a gear (209) is installed at the lower end of the motor (208), and a spray pipe (210) is installed at the lower end of the pipe embedded (203).

3. A backflushing sand filter according to claim 1 wherein: the dismounting mechanism comprises a bottom groove (601) and a clamping groove (606), wherein a fixing rod (602) is arranged in the bottom groove (601), a spring (603) is sleeved on the outer wall of the fixing rod (602), a clamping plate (604) is sleeved on the outer side of the spring (603), a pulling plate (605) is arranged at the lower end of the clamping plate (604), and the clamping groove (606) is formed in the side wall of the lower end of the inner groove (4).

4. A backflushing sand filter according to claim 2 wherein: the cross section size of the limiting groove (204) is matched with the cross section size of the limiting ring (205).

5. A backflushing sand filter according to claim 2 wherein: the toothed ring (206) is intermeshed with a gear (209).

6. A backflushing sand filter according to claim 3 wherein: the cross-sectional dimension of the clamping plate (604) is matched with the cross-sectional dimension of the clamping groove (606).

7. A backflushing sand filter according to claim 3 wherein: the clamping plate (604) is connected with one end of the spring (603), and the other end of the spring (603) is connected with the side wall of the bottom groove (601).