CN211562109U - Pre-pump filter - Google Patents

Abstract

The utility model discloses a filter before pump belongs to filtration equipment technical field, which comprises a housin the inside top of casing is provided with the second water inlet, the inside bottom of casing is provided with the second delivery port, the inside threaded rod that runs through the screw hole both ends that sets up of screw hole, the inside intermediate position department of casing is provided with the stopper, the one end that the stopper was kept away from to the support ring is provided with the filter screen. The utility model discloses a filter screen is frustum type structure, increases the area of contact of liquid and filter screen, makes first apron and second apron and casing separation, lets in the second water inlet with water, washes the filter screen, discharges the casing from the second delivery port with filterable impurity, through rotating the threaded rod, makes support ring and stopper separation, takes out the filter screen from the casing, and the leakproofness of filter before making the pump better through the sealed pad between second water inlet and first apron and second delivery port and the second apron.

Description

Pre-pump filter

Technical Field

The utility model relates to a filtration equipment technical field specifically is a pre-pump filter.

Background

Centrifugal pump, magnetic drive pump etc. are afraid of idle running once when using, and two are afraid of and contain solid impurity in the liquid material, cause the pump body to damage easily, so install the pre-pump filter before centrifugal pump, magnetic drive pump import often, the pre-pump filter makes the liquid that gets into the pump when passing through filter inner chamber filter screen, makes probably to block up or harm the impurity deposit of pump on the filter screen, with impurity thorough filtering.

Present filter before pump, filter area is less, leads to filtration efficiency lower, influences the use of pump, and long-time use filter screen can be blockked up by impurity, and the clearance is comparatively troublesome, when the filter screen damages, needs to change the filter screen, and current filter before pump trades filter screen step loaded down with trivial details, can not change even a bit.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the filter efficiency of a pre-pump filter is low, the filter screen is troublesome to clean and the filter screen is complex to replace, the pre-pump filter is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a pre-pump filter comprises a shell, a first water inlet is arranged on one side of the shell, a first water outlet is arranged on one side of the shell far away from the first water inlet, a second water inlet is arranged at the top end in the shell, a second water outlet is arranged at the bottom end in the shell, a first cover plate is arranged at the top of the shell, a second cover plate is arranged at the bottom of the shell, a fixing ring is arranged at one end of the interior of the shell, which is close to the first water inlet, the interior of the fixed ring is provided with a threaded hole which penetrates through two ends of the fixed ring, the interior of the threaded hole is provided with a threaded rod which penetrates through two ends of the threaded hole, a limiting block is arranged in the middle of the inside of the shell, a supporting ring is arranged above the limiting block, the one end that the stopper was kept away from to the support ring is provided with the filter screen, the one end that the support ring was kept away from to the filter screen is provided with the backup pad.

Preferably, the outside at casing both ends is provided with multiunit screw hole, the outside of first apron and second apron is provided with the inside bolt of multiunit through thread hole, and the figure of bolt is eight groups, the outside that the bolt is close to screw hole one end is provided with the nut.

Preferably, the inboard of support ring is provided with the recess, the filter screen passes through support ring and recess and can dismantle with the stopper and be connected, the outside that casing one end was kept away from to first delivery port and first water inlet connects to be provided with the multiunit screw hole.

Preferably, the second water outlet is detachably connected with the second cover plate through a bolt and a nut, and the second water inlet is detachably connected with the first cover plate through a bolt and a nut.

Preferably, the outside of threaded rod is provided with the external screw thread, the threaded rod passes through external screw thread and screw hole and solid fixed ring threaded connection, the filter screen is frustum type structure.

Preferably, a sealing gasket is arranged between the second water inlet and the first cover plate, and a sealing gasket is arranged between the second water outlet and the second cover plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a mould the filter screen with backup pad and support ring, make the filter screen be frustum type structure, increase the area of contact of liquid and filter screen, thereby increase filtration area, improve the filtration efficiency of pre-pump filter, through using the spanner to rotate the nut, take off the bolt, thereby make first apron and second apron and casing separation, let water into the second water inlet, wash the filter screen, discharge the impurity filtered from the second water outlet casing, can wash the filter screen without dismantling the filter screen, the problem that the filter screen clearance was loaded down with trivial details is solved, the practicality of pre-pump filter is improved, through rotating the threaded rod, make support ring and stopper separation, take out the filter screen from the casing, can realize the quick assembly disassembly of filter screen, make things convenient for people's use, make the leakproofness of pre-pump filter better through the second water inlet and the sealed pad between first apron and second water outlet and the second apron, thereby the use effect is better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the filter screen of the present invention.

In the figure: 1. a housing; 2. a first water inlet; 3. a first water outlet; 4. a second water inlet; 5. a second water outlet; 6. a first cover plate; 7. a second cover plate; 8. a fixing ring; 9. A threaded hole; 10. a threaded rod; 11. a filter screen; 12. a limiting block; 13. a support plate; 14. a bolt; 15. a nut; 16. and (3) supporting the ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a pre-pump filter includes a casing 1, a first water inlet 2 is disposed at one side of the casing 1, a first water outlet 3 is disposed at one side of the casing 1 away from the first water inlet 2, a second water inlet 4 is disposed at the top end of the casing 1, a second water outlet 5 is disposed at the bottom end of the casing 1, a first cover plate 6 is disposed at the top of the casing 1, a second cover plate 7 is disposed at the bottom of the casing 1, a fixing ring 8 is disposed at one end of the casing 1 close to the first water inlet 2, a threaded hole 9 penetrating through two ends of the fixing ring 8 is disposed inside the fixing ring 8, a threaded rod 10 penetrating through two ends of the threaded hole 9 is disposed inside the threaded hole 9, a limiting block 12 is disposed at an intermediate position of the casing 1, a support ring 16 is disposed above the limiting block 12, a filter screen 11 is disposed at one end of.

In the implementation: threaded rod 10 through threaded hole 9 both ends is run through to inside setting of screw hole 9, 1 inside intermediate position department of casing is provided with stopper 12, the laminating condition between support ring 16 and stopper 12 can be realized to rotation threaded rod 10, thereby be convenient for carry out the dismouting to filter screen 11, mould the type to filter screen 11 through backup pad 13 and support ring 16, make filter screen 11 be frustum type structure, the filtration efficiency of pre-pump filter has been improved, 1 inside intermediate position department of casing is provided with stopper 12, stopper 12 plays spacing effect to filter screen 11, be convenient for fixed filter screen 11.

Please refer to fig. 1 and fig. 2, the outer sides of the two ends of the casing 1 are provided with a plurality of groups of threaded holes 9, the outer sides of the first cover plate 6 and the second cover plate 7 are provided with a plurality of groups of bolts 14 penetrating through the inner parts of the threaded holes 9, and the number of the bolts 14 is eight, so that the first cover plate 6 and the second water inlet 4 are fixed more firmly, the second cover plate 7 and the second water outlet 5 are fixed firmly, and the outer side of one end of the bolt 14 close to the threaded hole 9 is provided with a nut 15, which is convenient for the disassembly and the fixation of the first cover plate 6 and the second cover plate 7.

Please refer to fig. 2 and fig. 3, the inner side of the supporting ring 16 is provided with a groove, the filter screen 11 is detachably connected with the limiting block 12 through the supporting ring 16 and the groove, which plays a role of limiting the filter screen 11 and facilitates the disassembly and assembly of the filter screen 11, and the outer sides of the first water outlet 3 and the first water inlet 2 far away from the shell 1 are provided with a plurality of groups of threaded holes 9 for facilitating the butt joint with a water pump or a water pipe.

Please refer to fig. 1 and fig. 2, the second water outlet 5 is detachably connected to the second cover plate 7 through the bolt 14 and the nut 15, so as to facilitate the detachment of the second water outlet 5 from the second cover plate 7, and the second water inlet 4 is detachably connected to the first cover plate 6 through the bolt 14 and the nut 15, so as to facilitate the detachment of the second water inlet 4 from the first cover plate 6.

Please refer to fig. 2 and fig. 3, an external thread is disposed on an outer side of the threaded rod 10, the threaded rod 10 is in threaded connection with the fixing ring 8 through the external thread and the threaded hole 9, so that the support ring 16 is tightly attached to the limit block 13, and the filter screen 11 is also convenient to disassemble and assemble, the filter screen 11 is in a frustum structure, the filter area is increased, and the filter efficiency of the pre-pump filter is improved.

Please refer to fig. 1 and 2, a sealing gasket is disposed between the second water inlet 4 and the first cover plate 6, and a sealing gasket is disposed between the second water outlet 5 and the second cover plate 7, so that the sealing effect between the second water inlet 4 and the second water outlet 5 is better, and the using effect of the pre-pump filter is better.

The working principle is as follows: before use, the filter screen 11 is placed in the shell 1, the support ring 16 is tightly attached to the limiting block 12, the threaded rod 10 is rotated to fix the filter screen 11, the second water inlet 4 and the sealing gasket are fixedly connected with the first cover plate 6 through the four groups of bolts 14 and nuts 15, the second water outlet 5 and the sealing gasket are fixedly connected with the second cover plate 7 through the other four groups of bolts 14 and nuts 15, the first water inlet 2 is fixedly connected with the water pipe through the bolts 14 and nuts 15, the first water outlet 3 is fixedly connected with the pump through the bolts 14 and nuts 15, when the water purifier is used, water is conveyed to the first water inlet 2 through the water pipe, is filtered through the frustum-shaped filter screen 11 and then flows into the first water outlet 3 to be conveyed into the pump, when the filter screen 11 needs to be cleaned, the second cover plate 7 of the second water outlet 5 is taken down and the first cover plate 6 of the second water inlet 4 is taken down, be connected water pipe and second water inlet 4 again, and let in water in casing 1, wash filter screen 11, make impurity discharge from 5 departments of second delivery port, the people of being convenient for wash filter screen 11, when filter screen 11 damages, rotatable shank of bolt 10, make support ring 16 and stopper 12 separable, take out filter screen 11 again, install new filter screen 11 at the stopper 12 inboard at last, rotate threaded rod 10 again and make support ring 16 closely laminate with stopper 12, can easily carry out the dismouting to filter screen 11, the practicality of filter before the pump has been improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A pre-pump filter comprising a housing (1), characterized in that: one side of the shell (1) is provided with a first water inlet (2), one side, away from the first water inlet (2), of the shell (1) is provided with a first water outlet (3), the top end of the interior of the shell (1) is provided with a second water inlet (4), the bottom end of the interior of the shell (1) is provided with a second water outlet (5), the top of the shell (1) is provided with a first cover plate (6), the bottom of the shell (1) is provided with a second cover plate (7), one end, close to the first water inlet (2), of the interior of the shell (1) is provided with a fixing ring (8), a threaded hole (9) penetrating through the two ends of the fixing ring (8) is formed in the interior of the fixing ring (8), a threaded rod (10) penetrating through the two ends of the threaded hole (9) is formed in the interior of the threaded hole (9), and, the top of stopper (12) is provided with support ring (16), the one end that stopper (12) were kept away from in support ring (16) is provided with filter screen (11), the one end that support ring (16) were kept away from in filter screen (11) is provided with backup pad (13).

2. A pre-pump filter according to claim 1, wherein: the outside at casing (1) both ends is provided with multiunit screw hole (9), the outside of first apron (6) and second apron (7) is provided with multiunit and runs through inside bolt (14) of screw hole (9), and the figure of bolt (14) is eight groups, the outside that bolt (14) are close to screw hole (9) one end is provided with nut (15).

3. A pre-pump filter according to claim 1, wherein: the inboard of support ring (16) is provided with the recess, filter screen (11) can be dismantled with stopper (12) through support ring (16) and recess and be connected, the outside that casing (1) one end was kept away from in first delivery port (3) and first water inlet (2) is provided with multiunit screw hole (9).

4. A pre-pump filter according to claim 1, wherein: the second water outlet (5) is detachably connected with the second cover plate (7) through a bolt (14) and a nut (15), and the second water inlet (4) is detachably connected with the first cover plate (6) through the bolt (14) and the nut (15).

5. A pre-pump filter according to claim 1, wherein: the outside of threaded rod (10) is provided with the external screw thread, threaded rod (10) are through external screw thread and screw hole (9) and solid fixed ring (8) threaded connection, filter screen (11) are frustum type structure.

6. A pre-pump filter according to claim 1, wherein: a sealing gasket is arranged between the second water inlet (4) and the first cover plate (6), and a sealing gasket is arranged between the second water outlet (5) and the second cover plate (7).

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