Anti-freezing filter element and filter applying same

Abstract

The utility model provides an anti-freezing filter element and a filter applying the same. The anti-freezing filter element comprises a shell, a piston and an elastic piece, the shell is provided with an accommodating cavity, one end of the accommodating cavity is a filtering end, a first water passing hole is formed in the end part of the filtering end, and a second water passing hole is formed in the peripheral part of the filtering end; the piston is installed in the installation cavity in a sliding mode and divides the installation cavity into two parts, one part is a filling cavity used for being filled with filter materials and communicated with the first water passing hole and the second water passing hole, the other part is a floating cavity, and the elastic piece is arranged in the floating cavity and abuts against the piston. According to the utility model, the piston and the elastic piece are arranged in the filter element, so that the space for filling the filter material in the filter element can be further expanded when the internal water is frozen, thereby avoiding the situation that the shell is burst due to the freezing of the internal water, namely the filter element has an anti-freezing function; the piston and the elastic piece are arranged, so that the gradually consumed filter materials can be extruded, the filter materials can be concentrated together and are in better contact with water, and the water treatment effect of the filter materials is prevented from being reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to an antifreeze filter element and a filter using the same. Background Art

[0002] Antifreeze filters are often equipped with an antifreeze mechanism. For example, the patent with the patent number CN206027218U provides an antifreeze and water hammer pre-filter, which has an additional antifreeze mechanism on the filter, which can be compressed when the water inside the filter freezes, so as to provide more space and prevent the filter from freezing and cracking. At present, most antifreeze filters on the market use the above structure. However, for filters without antifreeze function, if you want to upgrade, you can only completely replace the existing filter. Not only is the replacement cost high, but there is often a situation where the interface between the new filter and the water channel is not suitable during replacement, making replacement difficult. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides a filter element structure with an antifreeze function.

[0004] In a first aspect, an antifreeze filter element is provided, comprising a housing, a piston and an elastic member, specifically,

[0005] The housing is provided with a receiving cavity, one end of which is a filter end, the end of which is provided with a first water hole, and the periphery of which is provided with a second water hole. The piston is slidably installed in the installation cavity, and the installation cavity is divided into two parts, one part is a filling cavity for filling filter material, which is connected with the first water hole and the second water hole, and the other part is a floating cavity, the elastic member is arranged in the floating cavity, and supports the piston.

[0006] During installation, the antifreeze filter element provided by the utility model replaces the traditional filter element and is directly installed in the filter. When the water inside the filter freezes, as the volume of the ice cubes increases, the piston is further squeezed, thereby causing the elastic part to be compressed, and the piston moves toward the floating cavity. The floating cavity releases space, allowing the volume of the filling cavity to increase, and it can accommodate the ice cubes or filter materials with increased volume.

[0007] The utility model provides a piston and an elastic member inside the filter element so that the space inside the filter element for filling the filter material can be further expanded when the internal water freezes, thereby avoiding the situation where the shell is broken due to the internal water freezing, that is, the filter element has an antifreeze function. In addition, the piston and the elastic member can also squeeze the gradually consumed filter material so that it can be concentrated together and better contact with water, thereby avoiding a reduction in the treatment effect of the filter material on water.

[0008] Preferably, the first water hole is a water outlet hole, and the second water hole is a water inlet hole.

[0009] Preferably, in order to improve the uniformity of contact between water and filter material, there are multiple first water holes evenly distributed at the end of the accommodating cavity, and there are multiple second water holes distributed around the circumference of the accommodating cavity.

[0010] Preferably, the other end of the accommodating cavity is open or closed.

[0011] Preferably, the shell and the accommodating cavity are both cylindrical, the periphery of the piston is provided with an annular groove, and a sealing ring is sleeved in the annular groove, thereby preventing water from entering the floating cavity and causing the antifreeze function to fail.

[0012] Preferably, reinforcing ribs are distributed on the periphery of the shell to improve the strength of the shell.

[0013] Preferably, the elastic member is a spring, which has a simple structure, a large compression space and good elasticity.

[0014] Preferably, a convex ring is provided at one end of the piston facing the floating chamber, and the end of the spring is sleeved outside the convex ring to avoid misalignment between the spring and the piston, thereby preventing the piston from being unable to provide a restoring force.

[0015] In a second aspect, a filter is provided, comprising a water inlet joint, an installation cavity and a water outlet joint which are connected in sequence, wherein the antifreeze filter element described in the first aspect is installed in the installation cavity, the water inlet joint is connected to one of the first water hole and the second water hole, and the water outlet joint is connected to the other of the first water hole and the second water hole.

[0016] Preferably, the filter body comprises a filter body and an end cover, the end cover is assembled with the filter body through threads, the mounting cavity is arranged between the filter body and the end cover, and the end cover presses the antifreeze filter element into the filter body.

[0017] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0018] The utility model arranges a piston and an elastic member inside the filter element so that the space inside the filter element for filling the filter material can be further expanded when the internal water freezes, thereby avoiding the situation where the shell is broken due to the internal water freezing, that is, the filter element has an antifreeze function;

[0019] The piston and the elastic member can also squeeze the gradually consumed filter material, so that it can be gathered together and better contact with water, thereby avoiding the reduction of the treatment effect of the filter material on water;

[0020] The piston is provided with a convex ring at one end facing the floating chamber, which is used to clamp the spring, so as to prevent the spring and the piston from being misaligned and unable to provide a restoring force to the piston;

[0021] The other end of the accommodating cavity can be opened or closed, which can be flexibly selected;

[0022] The utility model provides a filter element with an antifreeze function, which can replace a traditional ordinary filter element, allowing an ordinary filter to be upgraded to a filter with an antifreeze function. During the upgrade process, there is no need to replace the existing filter, the upgrade cost is high, and the lifting process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] in:

[0025] Figure 1 Axonometric view of an antifreeze filter element Figure 1 ;

[0026] Figure 2 Axonometric view of an antifreeze filter element Figure 2 ;

[0027] Figure 3 It is an exploded view of an antifreeze filter element;

[0028] Figure 4 This is a front view of an antifreeze filter element;

[0029] Figure 5 It is a cross-sectional view of an antifreeze filter element; (About Figure 4 AA)

[0030] Figure 6 is an axonometric view of a filter;

[0031] Figure 7 It's an explosion of filters Figure 1 ;

[0032] Figure 8 It's an explosion of filters Figure 2 ;

[0033] Fig. 9 It is a front view of a filter;

[0034] Fig.10 is a cross-sectional view of a filter; (About Fig. 9 BB)

[0035] Figures 1 to 10The symbols are: shell 1, accommodating chamber 11, filling chamber 111, floating chamber 112, first water hole 12, second water hole 13, piston 2, elastic member 3, filter body 4, water inlet connector 41, installation chamber 42, water outlet connector 43, end cover 5. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer and more understandable, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] See also Figures 1 to 5 , an antifreeze filter element, comprising a housing 1, a piston 2 and an elastic member 3, specifically,

[0038] The housing 1 is provided with a receiving chamber 11, one end of the receiving chamber 11 is a filter end, the end of the filter end is provided with a first water hole 12, and the periphery is provided with a second water hole 13. In one embodiment, the outer periphery of the housing 1 is provided with reinforcing ribs to improve the strength of the housing 1 and make it less prone to freezing and cracking.

[0039] The piston 2 is slidably installed in the installation cavity 42, and the installation cavity 42 is divided into two parts, one part is a filling cavity 111 for filling filter material, which is connected to the first water hole 12 and the second water hole 13, and the other part is a floating cavity 112. The elastic member 3 is arranged in the floating cavity 112 and supports the piston 2. Preferably, the elastic member 3 is a spring with a simple structure, a large compression space and good elasticity. In addition, a convex ring is provided at one end of the piston 2 facing the floating cavity 112, and the end of the spring is sleeved outside the convex ring to avoid the spring and the piston 2 from being offset and unable to provide a reset force to the piston 2.

[0040] In one embodiment, the first water hole 12 is a water outlet hole, and the second water hole 13 is a water inlet hole. In addition, in order to improve the uniformity of contact between water and filter material, there are multiple first water holes 12, which are evenly distributed at the end of the accommodating cavity 11, and there are multiple second water holes 13, which are distributed around the periphery of the accommodating cavity 11.

[0041] In this embodiment, the other end of the accommodating chamber 11 is closed, which can effectively prevent water from entering the floating chamber 112. In other embodiments, the other end of the accommodating chamber 11 can also be open, as long as a sealing ring or a sealing structure is provided on the outer periphery of the end of the accommodating chamber 11 during installation to prevent water from entering the floating chamber 112 from the open end. In addition, in order to improve the sealing performance of the floating chamber 112, in another embodiment, the housing 1 and the accommodating chamber 11 are both cylindrical, and an annular groove is provided on the periphery of the piston 2. A sealing ring is sleeved in the annular groove, thereby preventing water from entering the floating chamber 112 and causing the antifreeze function to fail.

[0042] During installation, the antifreeze filter element provided by the utility model replaces the traditional filter element and is directly installed in the filter. When the water inside the filter freezes, as the volume of the ice cubes increases, the piston 2 is further squeezed, thereby causing the elastic member 3 to be compressed, and the piston 2 moves toward the floating chamber 112. The floating chamber 112 releases space, allowing the volume of the filling chamber 111 to increase, thereby accommodating the ice cubes or filter materials with increased volume.

[0043] Based on the above embodiments, the utility model provides a filter, please refer to Figures 6 to 10 , provided with a water inlet joint 41, an installation cavity 42 and a water outlet joint 43 which are connected in sequence, the above-mentioned antifreeze filter element is installed in the installation cavity 42, the water inlet joint 41 is connected to one of the first water hole 12 and the second water hole 13, and the water outlet joint 43 is connected to the other of the first water hole 12 and the second water hole 13.

[0044] Specifically, the filter body 4 includes a filter body 4 and an end cover 5 , the end cover 5 is assembled with the filter body 4 through threads, the installation cavity 42 is arranged between the filter body 4 and the end cover 5 , and the end cover 5 presses the antifreeze filter element into the filter body 4 .

[0045] The utility model provides a piston 2 and an elastic member 3 inside the filter element so that the space inside the filter element for filling the filter material can be further expanded when the internal water freezes, thereby avoiding the situation where the shell 1 is broken due to the internal water freezing, that is, the filter element has an antifreeze function. In addition, the piston 2 and the elastic member 3 can also squeeze the gradually consumed filter material so that it can be concentrated together and better contact with water, thereby avoiding a reduction in the treatment effect of the filter material on water.

[0046] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An antifreeze filter element, characterized in that: It includes a housing, a piston and an elastic member; The shell is provided with a accommodating cavity, one end of the accommodating cavity is a filtering end, the end of the filtering end is provided with a first water through hole, and the periphery is provided with a second water through hole; the piston is slidably installed in the installation cavity, and the installation cavity is divided into two parts, one part is a filling cavity for filling filter material, which is connected with the first water through hole and the second water through hole, and the other part is a floating cavity, the elastic member is arranged in the floating cavity, and supports the piston.

2. The antifreeze filter element according to claim 1, characterized in that: The first water hole is a water outlet hole, and the second water hole is a water inlet hole.

3. The antifreeze filter element according to claim 1, characterized in that: There are a plurality of first water holes evenly distributed at the end of the accommodating cavity, and there are a plurality of second water holes distributed around the circumference of the accommodating cavity.

4. The antifreeze filter element according to claim 1, characterized in that: The other end of the accommodating cavity is open or closed.

5. The antifreeze filter element according to claim 1, characterized in that: The housing and the accommodating cavity are both cylindrical, an annular groove is arranged on the periphery of the piston, and a sealing ring is sleeved in the annular groove.

6. The antifreeze filter element according to claim 5, characterized in that: Reinforcement ribs are distributed on the outer periphery of the shell.

7. The antifreeze filter element according to claim 1, characterized in that: The elastic member is a spring.

8. The antifreeze filter element according to claim 7, characterized in that: A convex ring is arranged at one end of the piston facing the floating chamber, and the end of the spring is sleeved outside the convex ring.

9. A filter, characterized in that: A water inlet joint, an installation cavity and a water outlet joint which are connected in sequence are provided, the antifreeze filter element according to any one of claims 1 to 8 is installed in the installation cavity, the water inlet joint is connected to one of the first water hole and the second water hole, and the water outlet joint is connected to the other of the first water hole and the second water hole.

10. A filter according to claim 9, characterized in that: The filter comprises a filter body and an end cover, wherein the end cover is assembled with the filter body through threads, the mounting cavity is arranged between the filter body and the end cover, and the end cover presses the antifreeze filter element into the filter body.

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