Filter convenient for replacing filter material

Abstract

The filter comprises a filter body, the upper end of the filter body is connected with a filtrate inlet pipe, the lower end of the filter body is connected with a filtrate outlet pipe, and a drawer type filtering device is arranged in the filter body in an intercepting manner, so that an unfiltered space is formed above the filter body, and a filtered space is formed below the filter body; the drawer type filtering device is internally provided with a placing space for placing a filter material, the placing space is internally provided with a pressing assembly for pressing the filter material, the filter material of the filter is placed in the drawer type filtering device, and the filter material pressing assembly is arranged, so that the filter material can be fixed, and meanwhile, the squeezing tightness of the filter material can be adjusted by rotating a screw cap; the whole structure is simple and convenient to replace; a sealing ring and a locking assembly are arranged, so that the sealing performance of the device is improved, the water seepage situation possibly caused by the arrangement of a drawer type filtering device is relieved, and the operation stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a filter which is convenient for replacing filter materials. Background Art

[0002] With the rapid development of urbanization, population concentration has greatly increased the amount of domestic water treatment, while the pipelines for transporting domestic water are difficult to repair and replace, resulting in a decline in the quality of domestic water. People are prone to getting sick after drinking tap water. Therefore, people need to use filters to load filter materials to purify domestic water. In order to give full play to the filtering effect of the filter and ensure the purification effect of water quality, it is necessary to frequently replace the filter materials in the filter. When replacing the existing filter materials, most of them are manually replaced. After all the filtrate is released, the filter is disassembled to replace the filter materials. This is not only time-consuming and laborious, but also the filtering speed of the filter can only be adjusted by replacing different filter materials. Therefore, it is very necessary to design a filter that is easy to replace the filter material and can adjust the filtering speed. Utility Model Content

[0003] The utility model aims to provide a filter which is convenient for replacing filter materials, thereby solving the problem that the existing filter is not convenient when replacing filter materials or adjusting filtering speed.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A filter that is easy to replace filter media, comprises a filter body, wherein the upper end of the filter body is connected to a filtrate inlet pipe, and the lower end is connected to a filtrate outlet pipe, a drawer-type filtering device is intercepted and arranged inside the filter body, so that an unfiltered space is formed above the filter body and a filtered space is formed below the filter body, a placement space for placing filter media is arranged in the drawer-type filtering device, and a pressing assembly for pressing the filter media is arranged in the placement space.

[0006] Furthermore, a first mesh plate is fixedly provided on the bottom surface of the placement space, and a second mesh plate is detachably provided on the top surface of the placement space, and filter material is placed between the first mesh plate and the second mesh plate.

[0007] Furthermore, the clamping assembly includes a locking hole provided on the first mesh plate, a slide groove opened on the second mesh plate and extending in a direction parallel to the locking hole, and an L-shaped rod movably provided in the slide groove, wherein the outer surface of the L-shaped rod is provided with a thread and is connected to a nut through the thread.

[0008] Furthermore, there are a plurality of symmetrically arranged clamping assemblies.

[0009] Furthermore, a locking assembly for locking the drawer-type filter device is disposed in the filter body, the locking assembly comprises a spring latch, and a corresponding latch hole is disposed on the drawer-type filter device.

[0010] Furthermore, a sealing ring is provided at the connection between the drawer-type filtering device and the filter body to prevent leakage of the filtrate.

[0011] The beneficial effects of the utility model are as follows: (1) The filter material of the filter is placed in a drawer-type filter device, and a filter material pressing assembly is provided. While fixing the filter material, the tightness of the filter material being squeezed can be adjusted by rotating the nut, thereby adjusting the interception rate of the filter material. The overall structure is simple and easy to replace. (2) A sealing ring and a locking assembly are provided to improve the sealing of the device, reduce water seepage that may be caused by the drawer-type filter device, and improve the operating stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the drawer-type filtering device of the utility model;

[0014] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle spring latch;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the clamping assembly of the utility model.

[0016] In the figure: 1. filter body; 2. water inlet pipe; 3. water outlet pipe; 4. drawer-type filter device; 5. unfiltered space; 6. filtered space; 7. placement space; 8. first mesh plate; 9. second mesh plate; 10. lock hole; 11. slide groove; 12. L-shaped rod; 13. nut; 14. spring latch; 15. latch hole; 16. sealing ring. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] like Figure 1-4As shown, a filter that is easy to replace filter media includes a filter body 1, the upper end of the filter body 1 is connected to a filtrate inlet pipe 2, and the lower end is connected to a filtrate outlet pipe 3, and a drawer-type filtering device 4 is intercepted and arranged inside the filter body 1, so that an unfiltered space 5 is formed above the filter body 1, and a filtered space 6 is formed below the filter body 1, and a placement space 7 for placing filter media is arranged in the drawer-type filtering device 4, and a clamping assembly for compressing the filter media is arranged in the placement space 7.

[0019] Working principle: the water inlet pipe 2 and the water outlet pipe 3 are both provided with switch valves for controlling the opening and closing of the pipelines. The unfiltered space 5 is used for liquid intake and storage of unfiltered filtrate, and the filtered space 6 is used for liquid discharge and storage of filtered filtrate. The drawer-type filter device 4 is slidably arranged in the filter body 1. When the filter material in the drawer-type filter device 4 needs to be replaced: first, the water inlet pipe 2 is closed by the switch valve to cut off the liquid intake of the unfiltered space 5, and then the water outlet pipe 3 is opened by the switch valve to release the filtrate in the filtered space 6. At the same time, the filtrate remaining in the unfiltered space 5 can also be filtered by the drawer-type filter device 4 and discharged through the water outlet pipe 3. The unfiltered space 5 is preferably provided with a drain pipe at the lowest point. When the effect of the drawer-type filter device 7 is poor, the filtrate that is difficult to filter clean can be released to the outside of the filter for treatment through the drain pipe. After the water level in the filter is lower than the drawer-type filter device 4, it is preferably released All the filtrate in the filtered space 6, take out the drawer-type filter device 4 to replace the filter material, and the pressing assembly can enhance the filtering effect of the filter material by pressing the filter material.

[0020] Preferably, a first mesh plate 8 is fixedly provided on the bottom surface of the placement space 7, and a second mesh plate 9 is detachably provided on the top surface of the placement space 7. The filter material is placed between the first mesh plate 8 and the second mesh plate 9. The first mesh plate 8 and the second mesh plate 9 are made of stainless steel and are passivated, so they are corrosion-resistant and harmless to the human body.

[0021] Preferably, the clamping assembly includes a locking hole 10 provided on the first mesh plate 8, a slide groove 11 opened on the second mesh plate 9 and extending in a direction parallel to the locking hole, and an L-shaped rod 12 movably provided in the slide groove 11, the outer surface of the L-shaped rod 12 is provided with a thread, and a nut 13 is connected by the thread. The filter material is usually filter cotton with a certain elasticity. The placement space 7 is, from top to bottom, the nut 13, the second mesh plate 9, the filter cotton and the first mesh plate 8. The tightness of the filter cotton clamped by the first mesh plate 8 and the second mesh plate 9 can be adjusted by rotating the nut 13, so that the water filtering pore size of the filter cotton is adjusted. For example, the smaller the pore size, the smaller the impurities with smaller particles can be intercepted, thereby making the overall interception rate higher to meet higher filtering requirements; at the same time, when the nut 13 is screwed to a looser position, the setting of the slide groove 11 enables the L-shaped rod 12 to slide laterally and disengage from the locking hole 10, so that the second mesh plate 9 can be directly removed, which is convenient for removing the filter cotton in the drawer-type filter device 4. The diameters of the locking hole 10 and the L-shaped rod 12 at the connection should fit closely to maintain a good locking effect. After the filter cotton is squeezed and its volume becomes smaller, it will maintain a tendency to expand outward, making the connection between the L-shaped rod 12 and the first mesh plate 8 through the locking hole 10 more secure.

[0022] Preferably, the clamping assemblies are symmetrically arranged in several pieces, and the lock holes 10, L-shaped rods 12, slide grooves 11 and nuts 13 are preferably arranged in four groups, which are respectively located at the four sides or four corners of the drawer-type filtering device 4, so as to make the overall fixing effect of the clamping assembly better.

[0023] Preferably, a locking assembly for locking the drawer-type filter device 4 is provided in the filter body 1, and the locking assembly includes a spring latch 14, and a corresponding latch hole 15 is provided on the drawer-type filter device 4. Preferably, two locking assemblies are provided, which are respectively located on both sides of the drawer-type filter device 4, and the toggle position of the spring latch 14 is outside the filter body 1. When the drawer-type filter device 4 needs to be put in or taken out, the spring latch 14 can be opened upwards. When the drawer-type filter device 4 is filtering normally, the spring latch 14 is lowered and inserted into the latch hole 15, which can ensure that the drawer-type filter device 4 will not separate from the filter body 1 due to tilting or transportation, thereby improving the operating stability of the device.

[0024] Preferably, a sealing ring 16 is provided at the connection between the drawer-type filter device 4 and the filter body 1 to prevent leakage of the filtrate. The sealing ring 16 can improve the sealing effect after the drawer-type filter device 4 is placed in the filter body 1, thereby avoiding excessive water leakage in the filter body 1.

[0025] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A filter for easily replacing filter material, comprising a filter body (1), wherein the upper end of the filter body (1) is connected to a filtrate inlet pipe (2), and the lower end is connected to a filtrate outlet pipe (3), characterized in that: A drawer-type filter device (4) is intercepted and arranged inside the filter body (1), so that an unfiltered space (5) is formed above the filter body (1) and a filtered space (6) is formed below the filter body (1); a placement space (7) for placing filter material is arranged inside the drawer-type filter device (4); and a compression assembly for compressing the filter material is arranged inside the placement space (7).

2. A filter for easy replacement of filter material according to claim 1, characterized in that: A first mesh plate (8) is fixedly provided on the bottom surface of the placement space (7), and a second mesh plate (9) is detachably provided on the top surface of the placement space (7); filter material is placed between the first mesh plate (8) and the second mesh plate (9).

3. A filter for easy replacement of filter material according to claim 2, characterized in that: The clamping assembly comprises a locking hole (10) arranged on the first mesh plate (8), a slide groove (11) opened on the second mesh plate (9) and extending in a direction parallel to the locking hole, and an L-shaped rod (12) movably arranged in the slide groove (11), wherein the outer surface of the L-shaped rod (12) is provided with a thread and is connected to a nut (13) through the thread.

4. A filter for easy replacement of filter material according to claim 3, characterized in that: The clamping components are arranged in a symmetrical manner.

5. The filter for easy replacement of filter material according to claim 1, characterized in that: A locking assembly for locking the drawer-type filter device (4) is arranged in the filter body (1), the locking assembly comprising a spring latch (14), and a corresponding latch hole (15) is arranged on the drawer-type filter device (4).

6. The filter for easy replacement of filter material according to claim 1, characterized in that: A sealing ring (16) is provided at the connection between the drawer-type filter device (4) and the filter body (1) for preventing the filtrate from leaking out.

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