Security filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a security filter which comprises a filter main body, a blow-off pipe is arranged at the bottom of the filter main body in a penetrating manner, a second screw ring is arranged on a circular plate in a penetrating manner, a second screw rod is in threaded connection in the second screw ring, and four groups of through holes are formed in the circular plate in a penetrating manner. And a rotating handle is fixedly arranged at the top of the second screw rod. According to the utility model, by installing the second screw rod and the through hole, when excessive dirt is left on the filter element of the security filter, the second screw rod is driven to rotate when a person rotates the rotary handle, the second screw rod drives a second screw ring to move when rotating, and the dirt stained on the filter cotton is scraped off by the circular plate through the arrangement of the through hole, so that the filter element of the security filter is cleaned. And then the dirt falls to the bottom of the filter main body and is discharged out of the device through the blow-off pipe, so that the technical problems that the water permeability of the filter element is reduced due to the increase of pollutants on the surface of the filter element and the replacement and installation are relatively complicated are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a security filter. Background Art

[0002] A filter is a device used to purify water. It can remove impurities, particles, germs and chemicals in the water to provide cleaner and safer drinking water. The filter uses a precision filter membrane to separate particles, microorganisms and colloids in the water at low pressure. It can remove bacteria, viruses, suspended matter and organic matter in the water to provide high-quality water. It can effectively remove odor and taste in the water and provide cleaner drinking water.

[0003] Patent document CN210699019U discloses a security filter, "including an outer shell, a lower head arranged at the bottom of the outer shell, an upper cover covering the top of the outer shell, and a water inlet arranged on a side wall of one side of the outer shell, and the upper pressure plate is provided with filter element holes evenly distributed. The security filter also includes a filter element sleeved on the top of the lower porous plate, and the end of the filter element away from the lower porous plate passes through the filter element hole and is placed above the upper pressure plate. The upper pressure plate is also slidably connected with a touch pressure cylinder, and the touch pressure cylinder is arranged on the outside of the filter element. The touch pressure cylinder specifically includes a cylindrical cylinder and a conical cylinder fixed at the bottom of the cylindrical cylinder; the utility model clamps the top end of the filter element on the limit column, and the limit column is clamped in the cylindrical cylinder, and the filter element is further fixed by the conical cylinder. The utility model adopts the form of clamping to achieve the fixation of the filter element, thereby avoiding the adverse effects of the traditional fixed connection method on the filter element."

[0004] However, the security filter disclosed in the above-mentioned public document does not take into account that during the long-term use of most existing security filters, pollutants are likely to remain on the surface of the filter element. As the pollutants on the filter element surface increase, the water permeability of the filter element will decrease. When it decreases to a certain level, the filter element needs to be replaced, which reduces the service life of the filter element, is inconvenient for people to use, and the replacement and installation are relatively cumbersome. Therefore, it is necessary to develop a security filter that can effectively solve the problems raised above. Utility Model Content

[0005] The utility model aims to provide a safety filter to solve the technical problems in the background technology mentioned above that the increase of pollutants on the filter element surface will reduce the water permeability of the filter element, making it inconvenient for people to use and the replacement and installation is relatively cumbersome.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a security filter, comprising a filter body, a sewage pipe is arranged through the bottom of the filter body, a circular plate is arranged inside the filter body, a second screw ring is arranged through the circular plate, a second screw is threadedly connected to the second screw ring, four groups of through holes are opened through the circular plate, a waterproof bearing is arranged at the bottom of the second screw, and the waterproof bearing is arranged at the bottom inner wall of the filter body, and a rotating handle is fixedly arranged on the top of the second screw.

[0007] Preferably, a water inlet is provided through the filter body, a water outlet is provided through the filter body, and the water outlet is symmetrically arranged above the water inlet.

[0008] Preferably, a sealing cover is provided on the top of the filter body, and the rotating handle is located above the sealing cover.

[0009] Preferably, a mounting plate is provided in the filter body, and the second screw rod is connected to the mounting plate through-and-through.

[0010] Preferably, there are four groups of filter cottons on the mounting plate, and the filter cottons extend through the interior of the through holes.

[0011] Preferably, a fixing seat is provided at the bottom of the filter body, four sets of fixing plates are fixedly provided on the outer surface of the fixing seat, and mounting holes are through-set on the fixing plates.

[0012] Preferably, two groups of square grooves are symmetrically provided in the fixing seat, and an extrusion plate is movably provided in the square groove.

[0013] Preferably, two groups of first screw rings are symmetrically arranged on the fixing seat, a first screw rod is passed through the first screw ring, one end of the first screw rod is movably connected to the extrusion plate, and a rotating torsion is fixedly arranged on the other end of the first screw rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is equipped with a waterproof bearing, a rotating handle, a drain pipe, a circular plate, a second spiral ring, a second screw and a through hole. When too much dirt remains on the filter element of the security filter during use, the circular plate is provided to fix the second spiral ring and the second screw. The through hole is smaller than the filter cotton. The waterproof bearing is provided to provide a smooth rotation of the second screw. When a person turns the rotating handle, the second screw will be driven to rotate at the same time. When the second screw rotates, the second spiral ring will be driven to move. The movement of the second spiral ring can drive the circular plate to move. The circular plate will scrape off the dirt stained on the filter cotton through the provision of the through hole. Then the dirt will fall to the bottom of the filter body and be discharged through the drain pipe. This effectively solves the technical problems of an increase in pollutants on the surface of the filter element, a decrease in the water permeability of the filter element, inconvenience for people to use, and cumbersome replacement and installation.

[0016] 2. The utility model is equipped with a fixing seat, a fixing plate, a mounting hole, a first screw ring, a second screw ring, a rotating twist, a square groove and an extrusion plate. The fixing seat is used to stably install the filter body. The sewage pipe runs through the bottom of the fixing seat. The setting of the fixing plate and the mounting hole plays a role in fixing the entire device. The square groove is provided for providing the function of installing the extrusion plate. The first screw ring plays a role in penetrating and connecting the first screw. After the filter body is placed in the fixing seat, the first screw rod can be driven to rotate by turning the rotating twist. The first screw will push the extrusion plate to move. The extrusion plate can form an effect of squeezing and fixing the filter body, which plays a role in facilitating the disassembly and maintenance of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the mounting plate structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the filter cotton structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the fixing seat structure of the utility model;

[0021] Figure 5 For the utility model Figure 3 A schematic diagram of the enlarged structure in the middle;

[0022] Figure 6 For the utility model Figure 4 A magnified schematic diagram of structure B in the middle.

[0023] In the figure: 1. filter body; 11. water inlet; 111. water outlet; 112. sealing cover; 12. drain pipe; 13. mounting plate; 131. filter cotton; 2. fixing seat; 21. fixing plate; 211. mounting hole; 212. first screw ring; 213. first screw rod; 214. rotating knob; 22. square groove; 221. extrusion plate; 3. circular plate; 31. second screw ring; 311. second screw rod; 312. through hole; 313. waterproof bearing; 314. rotating handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 A security filter comprises a filter body 1, a sewage pipe 12 is provided at the bottom of the filter body 1, a circular plate 3 is provided inside the filter body 1, a second screw ring 31 is provided on the circular plate 3, a second screw 311 is threadedly connected to the second screw ring 31, four groups of through holes 312 are provided on the circular plate 3, a waterproof bearing 313 is provided at the bottom of the second screw 311, and the waterproof bearing 313 is provided at the bottom inner wall of the filter body 1, and a rotating handle 314 is fixedly provided on the top of the second screw 311.

[0026] When the security filter is used, water flows into the interior of the filter body 1 through the water inlet 11 and then penetrates into the interior of the filter element through the filter cotton 131. The filter cotton 131 absorbs and filters the impurities carried by the water flow, and then the filtered water flow is discharged to the top of the mounting plate 13 through the top of the filter element. The diameter of the mounting plate 13 is the same as the diameter inside the filter body 1 to form a sealing effect on the water flow, and the mounting plate 13 is lower than the water outlet 111. The filtered water flow will be discharged through the water outlet 111. The middle part of the circular plate 3 is used to stably install the second spiral ring 31 and the second screw 311. The through hole 312 is set smaller than the filter cotton 131. The waterproof bearing 313 is provided to provide the second screw The rod 311 rotates smoothly. When a person turns the rotating handle 314, the second screw 311 will be driven to rotate at the same time. When the second screw 311 rotates, the second screw ring 31 will be driven to move. The movement of the second screw ring 31 can drive the circular plate 3 to move. Through the setting of the through hole 312, the circular plate 3 will scrape off the dirt contaminated on the filter cotton 131, and then the dirt will fall to the bottom of the filter body 1, and the drain pipe 12 will no longer be sealed. The water flow discharged through the water inlet 11 will flush the dirt at the bottom of the filter body 1 and discharge it through the drain pipe 12. This effectively solves the problem of the increase of pollutants on the surface of the filter element, the water permeability of the filter element will decrease, which is inconvenient for people to use, and the replacement and installation are more cumbersome.

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 A water inlet 11 is provided through the filter body 1, a water outlet 111 is provided through the filter body 1, and the water outlet 111 is symmetrically arranged above the water inlet 11, a sealing cover 112 is provided on the top of the filter body 1, and the rotating handle 314 is located above the sealing cover 112, a mounting plate 13 is provided in the filter body 1, and the second screw 311 is connected with the mounting plate 13 through, four groups of filter cotton 131 are on the mounting plate 13, and the filter cotton 131 extends through the interior of the through hole 312, the water inlet 11 and the water outlet 111 are existing structures and therefore no further description is made, the sealing cover 112 is a detachable connection that plays a sealing role, the mounting plate 13 is used to stably install the filter cotton 131, and the filter cotton 131 can remove impurities and particulate matter in the water and improve the water quality.

[0028] See also Figure 1 , Figure 4 and Figure 6A fixing seat 2 is provided at the bottom of the filter body 1, and four groups of fixing plates 21 are fixedly provided on the outer surface of the fixing seat 2, and mounting holes 211 are provided through the fixing plates 21, and two groups of square grooves 22 are symmetrically provided in the fixing seat 2, and extrusion plates 221 are movably provided in the square grooves 22, and two groups of first spiral rings 212 are symmetrically provided on the fixing seat 2, and a first screw rod 213 is passed through the first spiral ring 212, and one end of the first screw rod 213 is movably connected to the extrusion plate 221, and a rotating toggle 214 is fixedly provided on the other end of the first screw rod 213.

[0029] When using the security filter, the fixing seat 2 is used to stably install the filter body 1. The sewage pipe 12 passes through the bottom of the fixing seat 2. The setting of the fixing plate 21 and the mounting hole 211 plays a role in fixing the entire device. The square groove 22 is provided to provide the function of installing the extrusion plate 221. The first screw ring 212 plays the role of penetrating and connecting the first screw 213. After the filter body 1 is placed in the fixing seat 2, the first screw 213 will be driven to rotate by turning the rotating knob 214. The first screw 213 will push the extrusion plate 221 to move. The extrusion plate 221 can form the effect of squeezing and fixing the filter body 1, which plays a role in facilitating the disassembly and maintenance of the entire device.

[0030] Working principle: when there is too much dirt left on the filter element of the security filter, the water flows into the interior of the filter body 1 through the water inlet 11 and then penetrates into the interior of the filter element through the filter cotton 131. The filter cotton 131 absorbs and filters the impurities carried by the water flow, and then the filtered water flow is discharged into the top of the mounting plate 13 through the top of the filter element. The diameter of the mounting plate 13 is the same as the diameter inside the filter body 1 to form a sealing effect on the water flow, and the mounting plate 13 is lower than the water outlet 111. The filtered water flow will be discharged through the water outlet 111. The middle part of the circular plate 3 is used to stably install the second spiral ring 31 and the second screw 311. The through hole 312 is set smaller than the filter cotton 131. The waterproof bearing 313 is set to provide the second screw 311 with a smooth rotation. When the personnel rotates the rotating handle 314, the second screw 311 will be driven to rotate at the same time. When the second screw 311 rotates, it will drive the second spiral ring 31 to move. The movement of the second spiral ring 31 can drive the circular plate 3 to move, and through the setting of the through hole 312 The circular plate 3 will scrape off the dirt stained on the filter cotton 131, and then the dirt will fall to the bottom of the filter body 1. The drain pipe 12 is no longer sealed, and the water flow discharged through the water inlet 11 will flush the dirt at the bottom of the filter body 1 and discharge the device through the drain pipe 12, which effectively solves the increase of pollutants on the surface of the filter element. The water permeability of the filter element will decrease, which is inconvenient for people to use and has the technical problem of cumbersome replacement and installation. The fixing seat 2 is used to stably install the filter body 1, and the setting of the fixing plate 21 and the mounting hole 211 plays the role of fixing the entire device. The square groove 22 is provided to provide the function of installing the extrusion plate 221. The first screw ring 212 plays the role of penetrating and connecting the first screw 213. After the filter body 1 is placed in the fixing seat 2, the first screw 213 will be driven to rotate by turning the rotating knob 214, and the first screw 213 will push the extrusion plate 221 to move. The extrusion plate 221 can form the effect of extruding and fixing the filter body 1, which facilitates the disassembly and maintenance of the entire device.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A security filter, comprising a filter body (1), Features: A sewage pipe (12) is provided through the bottom of the filter body (1), a circular plate (3) is provided inside the filter body (1), a second screw ring (31) is provided through the circular plate (3), a second screw rod (311) is internally threadedly connected to the second screw ring (31), four groups of through holes (312) are provided through the circular plate (3), a waterproof bearing (313) is provided at the bottom of the second screw rod (311), and the waterproof bearing (313) is arranged on the bottom inner wall of the filter body (1), and a rotating handle (314) is fixedly provided at the top of the second screw rod (311).

2. A security filter according to claim 1, Features: The filter body (1) is provided with a water inlet (11) extending therethrough, and the filter body (1) is provided with a water outlet (111) extending therethrough, and the water outlet (111) is symmetrically arranged above the water inlet (11).

3. A security filter according to claim 2, Features: A sealing cover (112) is provided on the top of the filter body (1), and a rotating handle (314) is located above the sealing cover (112).

4. A security filter according to claim 2, Features: A mounting plate (13) is provided in the filter body (1), and the second screw rod (311) is connected to the mounting plate (13) through-and-through.

5. A security filter according to claim 4, Features: Four groups of filter cotton (131) are provided on the mounting plate (13), and the filter cotton (131) extends through the interior of the through hole (312).

6. A security filter according to claim 2, Features: A fixing seat (2) is arranged at the bottom of the filter body (1), four groups of fixing plates (21) are fixedly arranged on the outer surface of the fixing seat (2), and mounting holes (211) are arranged through the fixing plates (21).

7. A security filter according to claim 6, Features: Two groups of square grooves (22) are symmetrically provided in the fixing seat (2), and a pressing plate (221) is movably arranged in the square groove (22).

8. A security filter according to claim 7, Features: Two groups of first screw rings (212) are symmetrically arranged on the fixing seat (2), a first screw rod (213) is inserted into the first screw ring (212), one end of the first screw rod (213) is movably connected to the extrusion plate (221), and a rotating knob (214) is fixedly arranged on the other end of the first screw rod (213).

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