Filtering equipment convenient for replacing filter screen

Abstract

The utility model relates to filtering equipment, in particular to filtering equipment convenient for replacing a filter screen, which comprises a filter, a water inlet pipe, a drain pipe, a flange cover, a filter basket, a limiting rod and the like, the filter is communicated with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are oppositely arranged, the top of the filter is connected with a flange cover, a filter basket for filtering liquid entering the filter is movably arranged in an inner cavity of the filter, and the liquid flows into the filter through the water inlet pipe and then flows into the water outlet pipe after being filtered by the filter basket. The bottom center end of the filter basket is connected with a limiting rod. The push rod moves upwards to extrude the clamping block, the clamping block is far away from the clamping groove, the limiting effect of the clamping block on the limiting rod is relieved, at the moment, the filter basket can be taken out of the filter by lifting the filter basket upwards, and therefore the effect of conveniently taking out the filter basket is achieved, and the function of conveniently replacing the filter basket is achieved.

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a filtering device convenient for replacing a filter screen. Background Art

[0002] The basket-type filtering device is a common industrial filtering device, mainly used to remove solid particles in the liquid to protect downstream equipment from pollution and damage. The filter basket, as the filter screen in the basket-type filtering device, during its long-term use, impurities in the fluid will block the filtering holes of the filter basket. After the filtering holes of the filter basket are blocked, it is necessary to replace the new filter basket or take out the filter basket from the filtering device for cleaning, and then reinstall it into the filter after cleaning.

[0003] Since the existing filter baskets are generally installed in the filtering device by a fixed installation method or are embedded in the filtering device by a clamping structure, when it is necessary to replace the filter basket or clean it, there is a defect that the filter basket is difficult to take out.

[0004] Based on this, it is necessary to design a filtering device for replacing the filter screen. Summary of the Utility Model

[0005] The technical implementation scheme of the utility model is as follows: A filtering device convenient for replacing a filter screen, comprising a filter, a water inlet pipe, a drain pipe, a flange cover, a filter basket, a limiting rod, a clamping component and a pushing component. The filter is communicated with the water inlet pipe and the drain pipe. The top of the filter is connected with the flange cover. A filter basket for filtering the liquid entering the filter is movably arranged in the inner cavity of the filter. The liquid flows into the filter through the water inlet pipe and then flows into the drain pipe after being filtered by the filter basket. The central end of the bottom of the filter basket is connected with a limiting rod, and the limiting rod slidably penetrates through the filter. A clamping component for clamping the limiting rod to fix the filter basket in the filter is arranged at the bottom of the filter, and a pushing component for pushing the limiting rod to move upward to release the limiting effect of the clamping component on the limiting rod is arranged at the bottom of the filter.

[0006] In a preferred embodiment of the utility model, the clamping component comprises a convex block, a limiting rod, a clamping block, a sliding rod and a first spring. Slots are opened on both symmetric sides of the limiting rod extending out of the filter. Two convex blocks are symmetrically arranged at the bottom of the outer wall of the filter. Sliding rods are slidably connected to both convex blocks. One end of the sliding rods close to each other is connected with a clamping block that can be inserted into the slot to limit the limiting rod. A first spring is arranged between the clamping block and the convex block, and the first spring is wound around the sliding rod.

[0007] In a preferred embodiment of the utility model, the pushing component comprises a push rod, a guiding rod and a second spring. Guiding rods are symmetrically arranged at the bottom of the outer wall of the filter. A push rod is slidably connected to the guiding rods together. A second spring is arranged between the push rod and the filter, and the second spring is wound around the guiding rod.

[0008] In a preferred embodiment of the present utility model, it further includes a sewage discharge pipe and a valve. The lower part of the filter is connected to the sewage discharge pipe, and a valve for controlling the on-off of its inner cavity is arranged on the sewage discharge pipe.

[0009] In a preferred embodiment of the present utility model, it further includes positioning blocks. At least two positioning blocks are evenly spaced on the outer wall of the bottom circumference of the filter basket, and positioning grooves adapted to the positioning blocks are evenly spaced on the inner bottom of the filter.

[0010] In a preferred embodiment of the present utility model, a T-shaped lifting rod is arranged in the filter basket for easy lifting.

[0011] Beneficial effects: When the push rod moves upward to squeeze the clamping block, the clamping block moves away from the clamping groove, thereby releasing the limiting effect of the clamping block on the limiting rod. At this time, the filter basket can be taken out of the filter by lifting it upward. Thus, the effect of conveniently taking out the filter basket is achieved, and the convenient replacement function of the filter basket is realized. Description of the Drawings

[0012] Figure 1 It is a three-dimensional structure diagram of the present utility model.

[0013] Figure 2 It is a sectional three-dimensional structure diagram of the filter, the water inlet pipe, the drain pipe and the flange cover of the present utility model.

[0014] Figure 3 For the present utility model Figure 2 of the partial three-dimensional structure diagram.

[0015] Figure 4 It is a three-dimensional structure diagram of the filter basket, the limiting rod, the T-shaped lifting rod and the positioning block of the present utility model.

[0016] Figure 5 For the present utility model Figure 3 of the partial three-dimensional structure diagram.

[0017] Figure 6 It is a three-dimensional structure diagram of the clamping block, the first spring and the push rod of the present utility model.

[0018] The marks of each component in the drawings are as follows: 1. Filter, 101. Convex block, 2. Water inlet pipe, 3. Drain pipe, 4. Flange cover, 5. Filter basket, 6. Limiting rod, 60. Clamping groove, 61. Clamping block, 611. Slide rod, 62. First spring, 7. Push rod, 71. Guide rod, 72. Second spring, 8. Sewage discharge pipe, 81. Valve, 9. T-shaped lifting rod, 10. Positioning block. Detailed Embodiments

[0019] The following describes the present utility model in detail with reference to the drawings and specific embodiments, but it is not a limitation to the present utility model.

[0020] Embodiment: A filtering device facilitating the replacement of a filter screen, as Figures 1-5 shown, includes a filter 1, a water inlet pipe 2, a drain pipe 3, a flange cover 4, a filter basket 5, a limiting rod 6, a clamping component, and a pushing component. The filter 1 is connected to the water inlet pipe 2 and the drain pipe 3. The water inlet pipe 2 and the drain pipe 3 are arranged oppositely. The top of the filter 1 is connected with a flange cover 4 which is used to seal the top of the filter 1. A filter basket 5 for filtering the liquid entering the filter 1 is movably arranged in the inner cavity of the filter 1. The lowest point of the top opening of the filter basket 5 is below the connection point of the water inlet pipe 2 and the filter 1, and the highest point of the top opening of the filter basket 5 is below the connection point of the drain pipe 3 and the filter 1. Thus, after the liquid flows into the filter 1 through the water inlet pipe 2, it is filtered by the filter basket 5, then flows into the drain pipe 3 and is discharged to the outside of the filter 1 through the drain pipe 3. The center end of the bottom of the filter basket 5 is connected with a limiting rod 6 which slidably penetrates through the center point of the bottom of the filter 1. A clamping component for clamping the limiting rod 6 to fix the filter basket 5 in the filter 1 is arranged at the bottom of the filter 1, and a pushing component for pushing the limiting rod 6 to move upward to release the limitation of the clamping component on the limiting rod 6 is arranged at the bottom of the filter 1.

[0021] As Figures 2-6 shown, the clamping component includes a convex block 101, a limiting rod 6, a clamping block 61, a sliding rod 611, and a first spring 62. Slots 60 are formed on both symmetric sides of the limiting rod 6 extending outside the filter 1. Two convex blocks 101 are symmetrically arranged at the bottom of the outer wall of the filter 1. The midpoint of the perpendicular line between the two convex blocks 101 coincides with the center point of the bottom of the filter 1. Sliding rods 611 are slidably connected to both convex blocks 101. A clamping block 61 which can be inserted into the slot 60 to limit the limiting rod 6 is connected to the mutually approaching ends of the sliding rods 611. The clamping block 61 has a "C"-shaped structure. A first spring 62 is arranged between the clamping block 61 and the convex block 101. The first spring 62 is wound around the sliding rod 611. The first spring 62 is a compression spring, and its initial state is as Figure 6 shown.

[0022] As Figure 2 , Figure 3 and Figure 6 shown, the pushing component includes a push rod 7, a guiding rod 71, and a second spring 72. Guiding rods 71 are symmetrically arranged at the bottom of the outer wall of the filter 1. The connecting line between the guiding rods 71 is perpendicular to and intersects with the perpendicular line between the two convex blocks 101, and the intersection point coincides with the center point of the bottom of the filter 1. A push rod 7 is slidably connected to the guiding rods 71 together. A second spring 72 is arranged between the push rod 7 and the filter 1. The second spring 72 is wound around the guiding rod 71, and both ends of the second spring 72 are respectively connected to the filter 1 and the push rod 7.

[0023] As Figure 1 and Figure 2As shown, it also includes a drain pipe 8 and a valve 81. The lower part of the filter 1 is connected to the drain pipe 8. The drain pipe 8 is used to discharge the sewage at the lower inner part of the filter 1 to the outside of the filter 1. The drain pipe 8 is provided with a valve 81 to control the opening and closing of its inner cavity.

[0024] If Figure 4 and Figure 5 As shown, it also includes positioning blocks 10. Three positioning blocks 10 are evenly spaced on the circumferential outer wall of the bottom of the filter basket 5. The number of positioning blocks 10 can also be appropriately increased according to design and use needs. Positioning grooves that are compatible with the positioning blocks 10 are evenly spaced at the bottom of the inner side of the filter 1.

[0025] If Figure 2 As shown in , a T-shaped lifting rod 9 is provided inside the filter basket 5 for easy lifting, and the T-shaped lifting rod 9 is connected to the center point of the bottom inner side of the filter basket 5.

[0026] When in use, water enters the filter 1 through the water inlet pipe 2 and flows into the filter basket 5 for filtration. The water filtered by the filter basket 5 flows out through the drain pipe 3, and impurities are blocked in the filter basket 5. When there are too many impurities in the filter basket 5, the filtering effect of the filter basket 5 becomes poor. At this time, the filter basket 5 needs to be taken out for cleaning or replacement; when the filter basket 5 needs to be replaced, the water inlet pipe 2 is blocked from conveying water to the filter 1, and the waste water remaining in the filter 1 is discharged to the outside of the filter 1 through the sewage pipe 8. Then, the flange cover 4 is opened, and the push rod 7 is pushed upward. The push rod 7 moves upward and compresses the second spring 72. The push rod 7 moves upward to squeeze the block 61. Under the squeezing action of the push rod 7, the block 61 The two blocks 61 move away from the slot 60 through the slide bar 611 and compress the first spring 62, thereby releasing the engagement between the block 61 and the slot 60, thereby releasing the limiting effect of the block 61 on the limiting rod 6; at this time, the T-shaped lifting rod 9 is pulled upward, and the filter basket 5 is lifted upward through the T-shaped lifting rod 9, so as to remove the filter basket 5 from the filter 1; a new filter basket 5 is placed in the filter 1, and the filter basket 5 is conveniently installed at the bottom of the filter 1 through the cooperation of the positioning block 10 and the positioning groove in the filter 1. Through the elastic force of the first spring 62, the block 61 is re-engaged in the slot 60, so as to limit the limiting rod 6 and fix the filter basket 5.

[0027] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who have benefited from this disclosure will appreciate that various other embodiments may be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention shall be limited only by the appended claims.​

Claims

1. A filtering device for easily replacing a filter screen, comprising a filter (1), a water inlet pipe (2), a drain pipe (3), a flange cover (4) and a filter basket (5), wherein the filter (1) is connected to the water inlet pipe (2) and the drain pipe (3), the top of the filter (1) is connected to the flange cover (4), the inner cavity of the filter (1) is movably provided with a filter basket (5) for filtering liquid entering the filter (1), the liquid flows into the filter (1) through the water inlet pipe (2), and then flows into the drain pipe (3) after being filtered by the filter basket (5), wherein the filter (1) is characterized in that: The filter basket (5) further comprises a limit rod (6), a clamping assembly and a pushing assembly. The center end of the bottom of the filter basket (5) is connected to the limit rod (6). The limit rod (6) slides through the filter (1). The bottom of the filter (1) is provided with a clamping assembly for clamping the limit rod (6) to fix the filter basket (5) in the filter (1). The bottom of the filter (1) is provided with a pushing assembly for pushing the limit rod (6) upward to release the limiting effect of the clamping assembly on the limit rod (6).

2. A filter device for facilitating replacement of a filter screen according to claim 1, characterized in that: The clamping assembly comprises a protrusion (101), a limiting rod (6), a clamping block (61), a sliding rod (611) and a first spring (62); the limiting rod (6) is extended out of the filter (1) and has clamping grooves (60) on both symmetrical sides thereof; the bottom of the outer wall of the filter (1) is symmetrically provided with two protrusions (101); the two protrusions (101) are slidably connected to the sliding rod (611); one end of the sliding rod (611) close to each other is connected with a clamping block (61) which can be inserted into the clamping groove (60) to limit the limiting rod (6); a first spring (62) is provided between the clamping block (61) and the protrusion (101); the first spring (62) is wound around the sliding rod (611).

3. A filter device for facilitating replacement of a filter screen according to claim 2, characterized in that: The pushing assembly comprises a push rod (7), a guide rod (71) and a second spring (72); the guide rod (71) is symmetrically arranged at the bottom of the outer wall of the filter (1); the push rod (7) is slidably connected to the guide rod (71); a second spring (72) is arranged between the push rod (7) and the filter (1); and the second spring (72) is wound around the guide rod (71).

4. A filtering device for facilitating replacement of a filter screen according to claim 3, characterized in that: It also includes a sewage discharge pipe (8) and a valve (81). The lower part of the filter (1) is connected to the sewage discharge pipe (8), and the sewage discharge pipe (8) is provided with a valve (81) for controlling the opening and closing of its inner cavity.

5. A filtering device for facilitating replacement of a filter screen according to claim 4, characterized in that: It also includes positioning blocks (10), at least two positioning blocks (10) are evenly spaced on the circumferential outer wall of the bottom of the filter basket (5), and positioning grooves adapted to the positioning blocks (10) are evenly spaced on the inner bottom of the filter (1).

6. A filter device for facilitating replacement of a filter screen according to claim 5, characterized in that: A T-shaped lifting rod (9) is arranged inside the filter basket (5) for easy lifting.

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