Filter with filter element quick replacement structure

Abstract

The utility model provides a filter with a quick filter element replacement structure, which comprises an outer shell, a butt joint ring and a spring, an end cover component is arranged at the top of the outer shell, a base is arranged below the outer shell, and a filter cavity is arranged in the outer shell. Compared with the prior art, the utility model has the following beneficial effects: by arranging the butt-joint ring, the butt-joint cylinders, the butt-joint holes, the pressing rod, the elastic cavity and the spring, after the filter element is downwards put into the filter cavity, the filter element is slightly rotated to be adjusted, and when the filter element is felt to have obvious downward pause feeling, the six groups of butt-joint cylinders are upwards inserted into the six groups of butt-joint holes, so that the filter element is adjusted; after the filter is assembled, the filter element is in a state of downwards extruding the butt joint ring in the filter cavity, the butt joint ring downwards extrudes the three groups of springs through the three groups of pressing rods, and when the filter element is not subjected to pressure any more, the three groups of springs rebound to upwards eject the butt joint ring, so that the filter element is upwards ejected; and the filter element can be conveniently taken out and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and particularly relates to a filter with a structure for quickly replacing a filter element. Background Art

[0002] A filter is a device used to remove impurities and pollutants from liquids or gases, and is widely used in fields such as automobiles, industrial equipment, air purification, and water supply systems. Through physical or chemical methods, the filter can effectively intercept particulate matter, sediment, and other harmful components, thereby protecting the normal operation of the system and extending the service life of the equipment. Although filters play an important role in many applications, there are also disadvantages. As the use time extends, the filter element of the filter will gradually be blocked by impurities, resulting in a decrease in fluid flux and a reduction in the filtering effect. The conventional solution is to clean the filter element regularly. Regular cleaning can extend its service life and reduce the replacement frequency. However, the disadvantage of this method is that although regular cleaning extends the service life of the filter element, the cleaning process requires special equipment and manpower, and it is inconvenient to maintain and replace. Therefore, a new structure is proposed to solve the above problems. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a filter with a structure for quickly replacing a filter element.

[0004] The utility model is realized through the following technical solutions: A filter with a structure for quickly replacing a filter element, comprising: an outer shell, a docking ring, and a spring. A end cover assembly is provided at the top of the outer shell, a base is provided below the outer shell, and a filtering chamber is provided inside the outer shell;

[0005] A filter element is provided inside the filtering chamber. The filter element is composed of a paper bundle ring and filter paper. Six groups of docking holes are equidistantly arranged at the bottom of the paper bundle ring with the center of the circle as the base point. A docking ring is provided below the paper bundle ring, and six groups of docking cylinders are equidistantly arranged at the top of the docking ring with the center of the circle as the base point;

[0006] Two handle grips are symmetrically provided at the top of the docking ring, and three pressure rods are symmetrically provided at the bottom of the docking ring with the center of the circle as the base point. Three elastic chambers are symmetrically opened at the top of the base with the center of the circle as the base point, and a spring is installed below each elastic chamber.

[0007] As a preferred embodiment, the top of the docking cylinder is of a hemispherical structure. The height of the docking cylinder is greater than the depth of the docking hole, and the bottom of the docking cylinder is welded and fixed to the docking ring.

[0008] As a preferred embodiment, the materials of the docking cylinder and the docking ring are both stainless steel, and the radius length of the docking cylinder is less than the radius length of the docking hole.

[0009] As a preferred embodiment, the bottom of the docking ring is fixedly welded to the top of the pressure rod. The pressure rod is made of stainless steel, and the radius length of the pressure rod matches the radius length of the opening at the top of the elastic cavity.

[0010] As a preferred embodiment, the length of the pressure rod is greater than the depth of the elastic cavity. The bottom of the pressure rod contacts the top of the spring, and the bottom of the spring is fixedly glued to the bottom of the elastic cavity. During actual use, an external tool such as a hook is inserted into the filter cavity, and then the two hooks are respectively hooked to the inner sides of the two lifting handles symmetrically distributed at the top of the docking ring, and the two hooks are lifted upward simultaneously, so as to lift the docking ring and the three pressure rods upward along the filter cavity. Since the radius length of the docking ring is equal to the radius length of the paper-binding ring, the docking ring and the three pressure rods can also be taken out from the top of the filter cavity, thus facilitating the maintenance and replacement of the docking ring and the pressure rod, and being convenient to use.

[0011] As a preferred embodiment, an oil seal is provided on the outer side of the opening at the top of the elastic cavity. The radius length of the inner circle of the oil seal matches the radius length of the pressure rod. The radius length of the docking ring is equal to the radius length of the paper-binding ring. During actual use, the filter element is placed into the filter cavity inside the outer housing, and the filter element is slowly rotated and slightly pressed down. When it is felt that there is an obvious sense of pause during the rotation of the filter element, at this time, the six docking cylinders are inserted upward into the six docking holes, so that the docking ring and the paper-binding ring are connected. Then the end cover assembly is assembled to complete the overall assembly of the filter. At this time, the filter element presses the docking ring downward inside the filter cavity. The docking ring presses the three springs inside the three elastic cavities downward through the three pressure rods, forcing the springs to be in a compressed state inside the elastic cavities. The oil seal on the outer side of the top of the elastic cavity can prevent fuel from entering the elastic cavity when the filter element filters the fuel. When the filter element needs to be replaced, first open the end cover assembly. When the end cover assembly is removed, the filter element is no longer under extrusion pressure inside the filter cavity. At this time, the three springs inside the three elastic cavities rebound and push the three pressure rods upward, so as to push the docking ring upward through the three pressure rods, and then push the filter element upward inside the filter cavity, thus facilitating the quick replacement of the filter element and being convenient to use.

[0012] After adopting the above technical solution, the beneficial effect of the utility model is that by setting the docking ring, the docking cylinder, the docking hole, the pressure rod, the elastic cavity and the spring, after the filter element is placed downward into the filter cavity, the filter element is slightly rotated for adjustment. When it is felt that there is an obvious sense of pause for the filter element, at this time, the six docking cylinders are inserted upward into the six docking holes, so as to complete the connection between the docking ring and the paper-binding ring. When the filter is assembled, at this time, the filter element is in a state of pressing the docking ring downward inside the filter cavity. The docking ring presses the three springs downward through the three pressure rods. When the filter element is no longer under pressure, the three springs rebound and push the docking ring upward, so as to push the filter element upward, thus facilitating the removal and replacement of the filter element. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of a filter with a quick filter element replacement structure according to the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of a filter with a quick filter element replacement structure according to the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the docking hole in a filter with a quick filter element replacement structure according to the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the docking ring in a filter with a quick filter element replacement structure according to the present invention.

[0018] In the figure, 100 - outer housing, 110 - end cap assembly, 120 - base, 130 - filtration chamber, 140 - filter paper, 150 - paper bundle ring;

[0019] 160 - docking ring, 170 - docking cylinder, 180 - pressing rod, 190 - elastic cavity, 200 - spring;

[0020] 210 - oil seal, 220 - docking hole, 230 - handle. Detailed Embodiments

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 4 : A filter with a quick filter element replacement structure, including: an outer housing 100, a docking ring 160, and a spring 200. An end cap assembly 110 is provided at the top of the outer housing 100, a base 120 is provided below the outer housing 100, and a filtration chamber 130 is provided inside the outer housing 100;

[0023] Inside the filtering chamber 130, there is a filter element, which is composed of a paper-binding ring 150 and a filter paper 140. At the bottom of the paper-binding ring 150, six groups of docking holes 220 are equidistantly arranged with the center of the circle as the base point. Below the paper-binding ring 150, there is a docking ring 160. At the top of the docking ring 160, six groups of docking cylinders 170 are equidistantly arranged with the center of the circle as the base point.

[0024] On the top of the docking ring 160, two groups of handles 230 are symmetrically arranged. On the bottom of the docking ring 160, three groups of pressing rods 180 are symmetrically arranged with the center of the circle as the base point. On the top of the base 120, three groups of elastic chambers 190 are symmetrically arranged with the center of the circle as the base point. Inside each elastic chamber 190, a spring 200 is installed at the lower part.

[0025] The top of the docking cylinder 170 is of a hemispherical structure. The height of the docking cylinder 170 is greater than the depth of the docking hole 220. The bottom of the docking cylinder 170 is welded and fixed to the docking ring 160.

[0026] The materials of the docking cylinder 170 and the docking ring 160 are both stainless steel. The radius length of the docking cylinder 170 is less than the radius length of the docking hole 220.

[0027] The bottom of the docking ring 160 is welded and fixed to the top of the pressing rod 180. The material of the pressing rod 180 is stainless steel. The radius length of the pressing rod 180 matches the radius length of the opening at the top of the elastic chamber 190.

[0028] The length of the pressing rod 180 is greater than the depth of the elastic chamber 190. The bottom of the pressing rod 180 contacts the top of the spring 200. The bottom of the spring 200 is adhesively fixed to the bottom of the elastic chamber 190. During actual use, an external tool such as a hook is inserted into the inside of the filtering chamber 130, and then the two hooks are respectively hooked on the inner sides of the two groups of handles 230 symmetrically distributed on the top of the docking ring 160, and the two hooks are lifted upward simultaneously, so as to lift the docking ring 160 and the three groups of pressing rods 180 upward along the filtering chamber 130. Since the radius length of the docking ring 160 is equal to the radius length of the paper-binding ring 150, the docking ring 160 and the three groups of pressing rods 180 can also be taken out from the top of the filtering chamber 130, thus facilitating the maintenance and replacement of the docking ring 160 and the pressing rods 180, and being convenient to use.

[0029] An oil seal 210 is provided on the outer side of the top opening of the elastic cavity 190. The radius length of the inner ring of the oil seal 210 matches the radius length of the pressure rod 180. The radius length of the docking ring 160 is equal to the radius length of the paper binding ring 150. During actual use, the filter element is placed inside the filter cavity 130 of the outer housing 100, and the filter element is slowly rotated and slightly pressed down. When it is felt that there is an obvious downward pause during the rotation of the filter element, at this time, the six docking cylinders 170 are inserted upward into the six docking holes 220, so that the docking ring 160 and the paper binding ring 150 are connected. Then the end cover assembly 110 is assembled to complete the overall assembly of the filter. At this time, the filter element presses down the docking ring 160 inside the filter cavity 130, and the docking ring 160 presses down the spring 200 inside the three elastic cavities 190 through the three pressure rods 180, forcing the spring 200 to be in a compressed state inside the elastic cavity 190. The oil seal 210 on the outer side of the top of the elastic cavity 190 can prevent fuel from entering the elastic cavity 190 when the filter element filters the fuel. When the filter element needs to be replaced, first open the end cover assembly 110. When the end cover assembly 110 is removed, the filter element is no longer under extrusion force inside the filter cavity 130. At this time, the spring 200 inside the three elastic cavities 190 rebounds and pushes up the three pressure rods 180, thereby pushing the docking ring 160 to move upward through the three pressure rods 180, and then pushing the filter element to move upward inside the filter cavity 130, which can facilitate the quick replacement of the filter element and is convenient to use.

[0030] Embodiment 1: Please refer to Figures 1 to 4 , during actual use, first ensure that the outer housing 100 and the base 120 are in a vertical state, then hold the paper binding ring 150 at the top of the filter element, place the filter element inside the filter cavity 130 of the outer housing 100, slowly rotate the filter element and slightly press down. When it is felt that there is an obvious downward pause during the rotation of the filter element, at this time, the six docking cylinders 170 are inserted upward into the six docking holes 220, so that the docking ring 160 and the paper binding ring 150 are connected. Then the end cover assembly 110 is assembled to complete the overall assembly of the filter. At this time, the filter element presses down the docking ring 160 inside the filter cavity 130, and the docking ring 160 presses down the spring 200 inside the three elastic cavities 190 through the three pressure rods 180, forcing the spring 200 to be in a compressed state inside the elastic cavity 190. The oil seal 210 on the outer side of the top of the elastic cavity 190 can prevent fuel from entering the elastic cavity 190 when the filter element filters the fuel;

[0031] When the filter element needs to be replaced, first open the end cover assembly 110. After the end cover assembly 110 is removed, the filter element in the filter chamber 130 is no longer under extrusion pressure. At this time, the springs 200 in the three elastic chambers 190 rebound and push the three pressure rods 180 upward, thereby pushing the docking ring 160 upward through the three pressure rods 180, and then pushing the filter element upward in the filter chamber 130, which can facilitate the quick replacement and installation of the filter element and is convenient to use.

[0032] Embodiment 2: Please refer to Figure 4 , after the filter element is taken out, the docking ring 160 can be taken out continuously. At this time, use an external tool such as a hook to extend into the filter chamber 130, and then use two hooks to respectively hook the inner sides of the two lifting handles 230 symmetrically distributed at the top of the docking ring 160, and lift the two hooks upward simultaneously, so as to lift the docking ring 160 and the three pressure rods 180 upward along the filter chamber 130. Since the radius length of the docking ring 160 is equal to the radius length of the paper binding ring 150, the docking ring 160 and the three pressure rods 180 can also be taken out from the top of the filter chamber 130, which is convenient for maintaining and replacing the docking ring 160 and the pressure rods 180 and is convenient to use.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter with a filter element quick replacement structure, comprising: An outer shell (100), a docking ring (160) and a spring (200), characterized in that an end cover assembly (110) is provided at the top of the outer shell (100), a base (120) is provided below the outer shell (100), and a filter chamber (130) is provided inside the outer shell (100); A filter element is provided inside the filter cavity (130), the filter element comprising a paper bundle ring (150) and filter paper (140), the bottom of the paper bundle ring (150) being provided with six groups of docking holes (220) equidistantly with the center of the circle as a base point, a docking ring (160) being provided below the paper bundle ring (150), and the top of the docking ring (160) being provided with six groups of docking cylinders (170) equidistantly with the center of the circle as a base point; Two groups of handles (230) are symmetrically arranged on the top of the docking ring (160), three groups of pressure rods (180) are symmetrically arranged on the bottom of the docking ring (160) with the center of the circle as the base point, and three groups of elastic cavities (190) are symmetrically opened on the top of the base (120) with the center of the circle as the base point, and a group of springs (200) are installed at the bottom of each group of elastic cavities (190).

2. A filter with a filter element quick-change structure as claimed in claim 1, characterized in that: The top of the docking cylinder (170) is a hemispherical structure, the height of the docking cylinder (170) is greater than the depth of the docking hole (220), and the bottom of the docking cylinder (170) is welded and fixed to the docking ring (160).

3. A filter with a filter element quick-change structure as claimed in claim 2, characterized in that: The docking cylinder (170) and the docking ring (160) are both made of stainless steel, and the radius length of the docking cylinder (170) is smaller than the radius length of the docking hole (220).

4. A filter with a filter element quick-change structure as claimed in claim 2, characterized in that: The bottom of the docking ring (160) is welded and fixed to the top of the pressure rod (180); the pressure rod (180) is made of stainless steel; and the radius length of the pressure rod (180) matches the radius length of the top opening of the elastic cavity (190).

5. A filter with a filter element quick-change structure as claimed in claim 4, characterized in that: The length of the pressure rod (180) is greater than the depth of the elastic cavity (190), the bottom of the pressure rod (180) contacts the top of the spring (200), and the bottom of the spring (200) is glued and fixed to the bottom of the elastic cavity (190).

6. A filter with a filter element quick-change structure as claimed in claim 1, characterized in that: An oil seal (210) is provided on the outside of the top opening of the elastic cavity (190); the radius length of the inner ring of the oil seal (210) matches the radius length of the pressure rod (180); and the radius length of the docking ring (160) is equal to the radius length of the paper bundle ring (150).

Images