A filtering structure used in lost foam production of electric power fittings

Abstract

The invention discloses a filtering structure used in lost foam production of electric power hardware, belonging to the field of lost foam casting, comprising a first main runner, wherein the lower end of the first main runner is movably connected to a second main runner, the lower end of the first main runner is provided with a filtering component, the filtering component is used to filter impurities, the filtering component comprises a filtering shell fixedly connected to the lower end of the first main runner, a filter screen is rotatably connected inside the filtering shell, a motor is fixedly connected to the upper end of the filtering shell, a rotating rod is fixedly connected to the output end of the motor, the filter screen filters the metal liquid, and the filtered impurities are brought out by rotating the filter screen, the reciprocating screw rod enables the first slider to drive the pushing block to continuously move left and right, and then the impurities can be pushed into the inside of the collecting box, so that the impurities will not stay on the upper end of the filter screen during the filtering work, thereby ensuring the filtering effect of the filter screen and enabling the device to work continuously.

Description

Technical Field

[0001] The invention relates to the field of lost foam casting, and more particularly to a filtering structure used in lost foam production of electric power fittings. Background Art

[0002] Lost foam casting is a new casting technology that combines negative pressure technology with solid casting. When lost foam is applied to the production process of power fittings, most of the fittings have to withstand large tensile forces and crimping assembly during operation, and at the same time, good electrical contact is required. It is related to the safety of wires or towers. As long as one of them is damaged, it may also cause line failure. Therefore, the intrinsic quality of the fittings is particularly important.

[0003] Lost foam casting is different from the previous sand mold or investment casting. Lost foam casting requires the replacement of the mold cavity by molten iron. The metal impurities and non-metallic inclusions generated in this process seriously affect the intrinsic quality of the power hardware casting products. The existing filtering mechanism will leave impurities at the upper end of the filter after filtering, which will cause blockage during continuous work, thereby affecting work efficiency.

[0004] Therefore, a filtering structure for lost foam production of electric power fittings is proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a filtering structure for use in the lost foam production of electrical hardware, which can filter the molten metal and continuously discharge impurities, so that the device can work continuously.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A filtering structure used in the production of lost foam for electric power fittings, comprising a first main runner, the lower end of the first main runner is movably connected to a second main runner, the lower end of the first main runner is provided with a filtering component, the filtering component is used to filter impurities;

[0008] The filtrating mechanism that this filter element is used for isolating is fixedly connected with the filter housing, and the filter housing upper end is fixedly connected with the motor, and the output end of the motor is fixedly connected with the rotating rod, and the lower end of the rotating rod is fixedly connected with the upper end of the filter screen, and the rod wall of the rotating rod is fixedly connected with the first bevel gear, and the inner wall of the filter housing is provided with a first slide groove on the right side, and the inner wall of the first slide groove is rotatably connected with a reciprocating screw rod, and the left side of the reciprocating screw rod is fixedly connected with the second bevel gear meshing with the first bevel gear, and the inner wall of the first slide groove is slidably connected with a first slider, and the inner wall of the first slider is meshingly connected with the rod wall of the reciprocating screw rod, and the lower end of the first slider is movably connected with a pushing block, and the inner wall of the filter housing is movably connected with a scraper, and the right side of the filter housing is fixedly connected with a collecting box, and the lower end of the first main runner is located at two millimeters above the upper end of the filter screen.

[0009] Preferably, a cover plate is rotatably connected to the right side of the collection box.

[0010] Preferably, a support block is fixedly connected to the inner wall of the lower end of the filter shell, a groove is opened at the upper end of the support block, a knocking block is slidably connected inside the groove, a first spring is fixedly connected to the lower end of the knocking block, and a protrusion is evenly fixedly connected to the lower end of the filter screen.

[0011] Preferably, the inner rear end of the first sliding block is rotatably connected to a rod, the upper end of the rod is fixedly connected to the first gear, the inner wall rear end of the first sliding groove is evenly fixedly connected to a first tooth block, the first tooth block is meshed with the first gear, the lower end of the rod is rotatably connected to a round block, the inner wall of the round block is evenly provided with a rectangular groove, the inside of the rectangular groove is slidably connected with an arc block, one side of the arc block is evenly fixedly connected to a second spring, the rod wall of the rod is evenly provided with a clamping groove, the clamping groove is clamped with the arc block, the lower end of the round block is fixedly connected to the pushing block, and both sides of the lower end of the first sliding block are fixedly connected to limit rods.

[0012] Preferably, second sliding grooves are opened at the front and rear positions of the inner wall of the collection box, the second sliding groove is slidably connected to the inside of the second sliding groove, a cleaning roller is fixedly connected to the opposite sides of the two second sliding blocks, a third spring is fixed to the right side of the second sliding block, the cleaning roller is fixedly connected to the front and rear positions, the second tooth block is evenly fixedly connected to the upper end of the second sliding groove, and the second tooth block is meshingly connected to the outer side of the second gear.

[0013] Preferably, movable grooves are evenly formed on the outer side of the cleaning roller, a scraper block is slidably connected inside the movable groove, and a fourth spring is fixedly connected to one side of the scraper block.

[0014] Preferably, a telescopic rod is fixedly connected to the inner wall of the upper end of the filter housing, a fifth spring is fixedly connected inside the telescopic rod, and the lower end of the telescopic rod is fixedly connected to the upper end of the scraper.

[0015] Preferably, a flow reducing block is fixedly connected to the interior of the first main runner.

[0016] Preferably, the first main runner and the filter shell are both arranged inclined.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The filter screen filters the metal liquid and removes the filtered impurities by rotating the filter screen. The reciprocating screw causes the first slider to drive the push block to move left and right continuously, thereby pushing the impurities into the collection box. In this way, the impurities will not stay on the upper end of the filter screen during the filtering work, thereby ensuring the filtering effect of the filter screen and enabling the device to work continuously.

[0019] (2) The filter drives the convex block to move, and the convex block contacts the knocking block when moving, causing the knocking block to move toward the inside of the groove. When the knocking block and the convex block are misaligned, the knocking block moves upward rapidly under the action of the first spring, and then knocks on the lower end of the filter screen to generate vibration, which makes the scraper more effective in cleaning impurities.

[0020] (3) The rotation of the push block is limited by the limit rod. Under the action of the first gear and the first tooth block, when the push block moves to the right, the push block can be perpendicular to the scraper. When the push block moves to the left, the push block rotates and tilts and does not contact the scraper. In this way, when cleaning impurities, the push block can act on the impurities in a unidirectional manner, thereby achieving a better cleaning effect of the impurities.

[0021] (4) The pushing block moves to the right and contacts the cleaning roller, pushing the cleaning roller to move, causing the second slider to move to the right inside the second slide groove, while compressing the third spring. The cleaning roller moves to the right and drives the second gear to move to the right. The second gear rotates under the action of the second tooth block, and the second gear drives the cleaning roller to rotate. The scraping block can be extended and retracted relative to the inside of the moving groove, so that when the scraping block moves, it can just contact the pushing block, thereby improving the cleaning effect of the pushing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0024] Figure 3 For the present invention Figure 2The enlarged structural diagram at A in the middle;

[0025] Figure 4 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0026] Figure 5 It is a schematic diagram of the meshing structure of the reciprocating screw rod and the first sliding block of the present invention;

[0027] Figure 6 It is a schematic diagram of the first gear and rod structure of the present invention;

[0028] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the collection box of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the cleaning roller of the present invention;

[0031] Fig.10 It is a schematic diagram of the telescopic rod structure of the present invention.

[0032] Description of the numbers in the figure:

[0033] 1. Filter housing; 2. First main runner; 3. Second main runner; 4. Motor; 5. Collecting box; 6. Cover plate; 7. Reciprocating screw; 8. First slideway; 9. Flow reducing block; 10. Bump; 11. Fourth spring; 12. Filter screen; 13. Rotating rod; 14. First bevel gear; 15. Moving groove; 16. Scraper; 17. First tooth block; 18. First gear; 19. Second bevel gear; 20. Pushing block; 21. Support block ; 22. knocking block; 23. first spring; 24. groove; 25. limit rod; 26. first slider; 27. rod; 28. slot; 29. ​​round block; 30. rectangular slot; 31. second spring; 32. arc block; 33. second slide slot; 34. third spring; 35. second gear; 36. second slider; 37. second gear block; 38. cleaning roller; 39. scraper block; 40. telescopic rod; 41. fifth spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 10A filtering structure used in the production of lost foam for electric power fittings comprises a first main runner 2, the lower end of the first main runner 2 is movably connected to a second main runner 3, and the lower end of the first main runner 2 is provided with a filtering component, and the filtering component is used to filter impurities;

[0036] The filter assembly includes a filter shell 1 fixedly connected to the lower end of the first main runner 2, and the filter shell 1 is internally rotatably connected to a filter screen 12, and the filter screen 12 is used for the filter plate function. The upper end of the filter shell 1 is fixedly connected to a motor 4, and the motor 4 is a driving device. In the prior art, the output end of the motor 4 is fixedly connected to a rotating rod 13, and the output end of the motor 4 rotates to drive the rotating rod 13 to rotate, and the lower end of the rotating rod 13 is fixedly connected to the upper end of the filter screen 12. The rotating rod 13 rotates to drive the filter screen 12 to rotate, and the rod wall of the rotating rod 13 is fixedly connected to a first bevel gear 14. A first slide groove 8 is provided on the right side of the inner wall of the filter shell 1, and a reciprocating screw rod 7 is internally rotatably connected to the first slide groove 8. The left side of the reciprocating screw rod 7 is fixedly connected to a second bevel gear 19 meshing with the first bevel gear 14. The rotation of the first bevel gear 14 drives the second bevel gear 19 to rotate, and the first slide groove 8 is internally slidably connected to a first slider 26, and the first slider 26 moves inside the first slide groove 8. The interior of the first slider 26 is meshed with the rod wall of the reciprocating screw rod 7, and the second bevel gear 19 rotates to drive the reciprocating screw rod 7 to rotate, so that the first slider 26 moves left and right. The lower end of the first slider 26 is movably connected with a pushing block 20, and the interior of the filter shell 1 is movably connected with a scraper 16. The first slider 26 drives the pushing block 20 to move left and right. The right side of the filter shell 1 is fixedly connected with a collecting box 5, and the collecting box 5 is used to collect impurities. The right side of the collecting box 5 is rotatably connected with a cover plate 6, and the impurities inside the collecting box 5 are discharged by opening the cover plate 6. The lower end of the first main runner 2 is located two millimeters above the upper end of the filter screen 12 to prevent excessive metal liquid from overflowing. The interior of the first main runner 2 is fixedly connected with a flow reducing block 9, and the flow of the metal liquid is blocked by the flow reducing block 9, thereby reducing the flow rate of the metal liquid. The first main runner 2 and the filter shell 1 are both inclined to prevent the metal liquid from rotating when the filter screen 12 rotates.

[0037] During operation, the metal liquid enters the interior of the filter shell 1 through the first main runner 2, and the impurities mixed with the metal liquid are filtered through the filter shell 1. At this time, the motor 4 is energized to drive the rotating rod 13 to rotate. When the rotating rod 13 rotates, it drives the filter screen 12 to rotate. When the filter screen 12 rotates, it drives the impurities to move. The filter screen 12 rotates under the action of the scraper 16 to block the impurities on the upper end of the filter screen 12. The rotating rod 13 drives the first bevel gear 14 to rotate. The rotation of the first bevel gear 14 drives the second bevel gear 19 to rotate. The second bevel gear 19 drives the reciprocating screw rod 7 to rotate, thereby rotating the first slider 26 The first slider 26 moves left and right inside the first chute 8, and the push block 20 is driven to move, thereby pushing the impurities into the collecting box 5. In this way, the filter screen 12 is rotated, so that the impurities are continuously taken out by the filter screen 12, and then the impurities are pushed out by the push block 20. In this way, during operation, the impurities will not remain on the upper end of the filter screen 12, ensuring that the metal can pass easily. The radius of the filter screen 12 is greater than the diameter of the first main runner 2, and under the action of the flow reduction block 9, the metal solution will not flow to the right side of the filter shell 1 when flowing, ensuring the normal operation.

[0038] like Figure 2 and Figure 4 As shown, a support block 21 is fixedly connected to the inner wall of the lower end of the filter shell 1, a groove 24 is provided at the upper end of the support block 21, a knocking block 22 is slidably connected inside the groove 24, a first spring 23 is fixedly connected to the lower end of the knocking block 22, the first spring 23 has a certain supporting effect on the knocking block 22, and a protrusion 10 is evenly fixedly connected to the lower end of the filter screen 12.

[0039] When the filter 12 rotates, the protrusion 10 is driven to move. When the protrusion 10 moves, it contacts the knocking block 22, causing the knocking block 22 to move toward the inside of the groove 24 and compress the first spring 23. When the knocking block 22 is misaligned with the protrusion 10, the knocking block 22 moves upward quickly under the action of the first spring 23, and then knocks the lower end of the filter 12 to generate vibration, so that the scraper 16 can better clean impurities.

[0040] like Figure 3 , Figure 5-Figure 7As shown, the inner rear end of the first slider 26 is rotatably connected with a rod 27, and the movement of the first slider 26 drives the rod 27 to move. The upper end of the rod 27 is fixedly connected with the first gear 18, and the inner wall rear end of the first slide groove 8 is evenly fixedly connected with the first tooth block 17, and the first tooth block 17 is meshed and connected with the first gear 18. The first gear 18 moves and rotates under the action of the first tooth block 17, and the lower end of the rod 27 is rotatably connected with a round block 29, and the inner wall of the round block 29 is evenly provided with a rectangular groove 30, and the inside of the rectangular groove 30 is slidably connected with an arc block 32, and one side of the arc block 32 is evenly fixedly connected with a second spring 31, and the second spring 31 has a certain supporting force on the arc block 32, and the rod wall of the rod 27 is evenly provided with a clamping groove 28, and the clamping groove 28 is clamped with the arc block 32, and the lower end of the round block 29 is fixedly connected with the push block 20, and both sides of the lower end of the first slider 26 are fixedly connected with the limit rod 25, and the limit rod 25 is used to limit the rotation amplitude of the push block 20;

[0041] When the first slider 26 moves, it drives the rod 27 to move. When the rod 27 moves, it drives the first gear 18 to move. Under the action of the first tooth block 17, the first gear 18 rotates. When the first gear 18 moves to the right, the first gear 18 drives the rod 27 to rotate counterclockwise, thereby rotating the push block 20. When the push block 20 rotates, under the action of the limiting rod 25 on the right, the push block 20 is perpendicular to the scraper 16 to push the impurities. When the limiting rod 25 limits the movement of the push block 20, the push block 20 can no longer rotate. The rod 27 continues to rotate, so that a relative torsion occurs between the round block 29 and the rod 27. The rotation of the rod 27 causes the arc block 32 to be aligned with the slot 2 8 thrust, under the action of the second spring 31, the arc block 32 is again stuck in the inside of the slot 28, so that the rod 27 and the round block 29 can rotate relative to each other, and there is a certain mutual force between them, so that when the push block 20 is perpendicular to the scraper 16, it will not be interfered by the rotating rod 13. When the first slider 26 drives the push block 20 to move to the left, the rod 27 is flipped under the action of the first gear 18, so that the push block 20 rotates. Under the action of the limit rod 25, the push block 20 and the scraper 16 are in an inclined state, so that the push block 20 has less effect on impurities at this time. In this way, when cleaning impurities, the push block 20 can act on the impurities unidirectionally, so that the impurity cleaning effect is better.

[0042] like Figure 8 and Fig. 9As shown, second slide grooves 33 are provided at the front and rear positions of the inner wall of the collecting box 5, and a second slider 36 is slidably connected inside the second slide groove 33. The second slider 36 moves inside the second slide groove 33, and a cleaning roller 38 is fixedly connected to the opposite side of the two second sliders 36. A third spring 34 is fixed to the right side of the second slider 36, and the third spring 34 has a certain driving force on the second slider 36. The front and rear positions of the cleaning roller 38 are fixedly connected to the second gear 35, and the upper end of the second slide groove 33 is evenly fixedly connected to a second tooth block 37, which is meshed with the outer side of the second gear 35. The second gear 35 moves and rotates under the action of the second tooth block 37. A moving groove 15 is evenly provided on the outer side of the cleaning roller 38, and a scraper block 39 is slidably connected inside the moving groove 15. A fourth spring 11 is fixedly connected to one side of the scraper block 39, and the fourth spring 11 has a certain supporting effect on the scraper block 39, so that the right side of the pushing block 20 is cleaned by the scraper block 39.

[0043] When the pushing block 20 moves to the right, it contacts the cleaning roller 38, thereby pushing the cleaning roller 38 to move to the right. When the cleaning roller 38 moves to the right, the second slider 36 moves to the right inside the second slide groove 33, and at the same time compresses the third spring 34. When the cleaning roller 38 moves to the right, it drives the second gear 35 to move to the right. The second gear 35 moves to the right and rotates under the action of the second tooth block 37. The second gear 35 drives the cleaning roller 38 to rotate. Since the cleaning roller 38 has fewer contact points with the pushing block 20, the scraper block 39 provided at this time can be retracted and retracted relative to the inside of the moving groove 15, so that when the scraper block 39 moves, it can just contact the pushing block 20, thereby improving the cleaning effect of the pushing block 20.

[0044] like Fig.10 As shown, a telescopic rod 40 is fixedly connected to the inner wall of the upper end of the filter shell 1, and a fifth spring 41 is fixedly connected to the inside of the telescopic rod 40. The lower end of the telescopic rod 40 is fixedly connected to the upper end of the scraper 16. The scraper 16 and the filter screen 12 have a certain friction, which will cause a certain loss of the scraper 16. The fifth spring 41 always has a downward pushing force on the scraper 16, ensuring the effect of the scraper 16 in cleaning impurities.

[0045] Working principle: When working, the metal liquid enters the interior of the filter shell 1 through the first main runner 2, and the impurities mixed with the metal liquid are filtered through the filter shell 1. At this time, the motor 4 is energized to drive the rotating rod 13 to rotate. When the rotating rod 13 rotates, it drives the filter screen 12 to rotate. When the filter screen 12 rotates, it drives the impurities to move. The filter screen 12 rotates under the action of the scraper 16 to block the impurities on the upper end of the filter screen 12. The rotating rod 13 drives the first bevel gear 14 to rotate. The rotation of the first bevel gear 14 drives the second bevel gear 19 to rotate. The second bevel gear 19 drives the reciprocating screw rod 7 to rotate, thereby rotating the first slide The block 26 moves left and right inside the first chute 8, and the first slider 26 drives the pushing block 20 to move, thereby pushing the impurities into the collecting box 5. In this way, the filter screen 12 is rotated, so that the impurities are continuously taken out by the filter screen 12, and then the impurities are pushed out by the pushing block 20. In this way, during operation, the impurities will not remain on the upper end of the filter screen 12, ensuring that the metal can pass easily. The radius of the filter screen 12 is greater than the diameter of the first main runner 2, and under the action of the flow reduction block 9, the metal solution will not flow to the right side of the filter shell 1 when flowing, ensuring the normal operation.

[0046] Furthermore, when the filter 12 rotates, the protrusion 10 is driven to move, and the protrusion 10 contacts the knocking block 22 when moving, so that the knocking block 22 moves toward the inside of the groove 24, and at the same time compresses the first spring 23. When the knocking block 22 is misaligned with the protrusion 10, the knocking block 22 moves upward quickly under the action of the first spring 23, and then knocks the lower end of the filter 12 to generate vibration, so that the scraper 16 is more effective in cleaning impurities.

[0047] Furthermore, when the first slider 26 moves, it drives the rod 27 to move, and when the rod 27 moves, it drives the first gear 18 to move. Under the action of the first tooth block 17, the first gear 18 rotates. When the first gear 18 moves to the right, the first gear 18 drives the rod 27 to rotate counterclockwise, thereby rotating the push block 20. When the push block 20 rotates, under the action of the limiting rod 25 on the right, the push block 20 is perpendicular to the scraper 16 to push the impurities. When the limiting rod 25 limits the movement of the push block 20, the push block 20 can no longer rotate, and the rod 27 continues to rotate, so that a relative torsion occurs between the round block 29 and the rod 27. The rotation of the rod 27 causes the arc block 32 to contact the card The thrust of the groove 28, under the action of the second spring 31, makes the arc block 32 again stuck in the inside of the groove 28, so that the rod 27 and the round block 29 can rotate relative to each other, and there is a certain mutual force between them, so that when the push block 20 is perpendicular to the scraper 16, it will not be interfered by the rotating rod 13. When the first slider 26 drives the push block 20 to move to the left, the rod 27 is flipped under the action of the first gear 18, so that the push block 20 rotates. Under the action of the limit rod 25, the push block 20 and the scraper 16 are in an inclined state, so that the push block 20 has less effect on impurities at this time. In this way, when cleaning impurities, the push block 20 can act on the impurities unidirectionally, so that the cleaning effect of impurities is better.

[0048] Furthermore, when the pushing block 20 moves to the right, it contacts the cleaning roller 38, thereby pushing the cleaning roller 38 to move to the right. When the cleaning roller 38 moves to the right, the second slider 36 moves to the right inside the second slide groove 33, and at the same time compresses the third spring 34. When the cleaning roller 38 moves to the right, it drives the second gear 35 to move to the right. The second gear 35 moves to the right and rotates under the action of the second tooth block 37. The second gear 35 drives the cleaning roller 38 to rotate. Since there are fewer contact points between the cleaning roller 38 and the pushing block 20, the scraper block 39 provided at this time can be retracted and retracted relative to the inside of the moving groove 15, so that when the scraper block 39 moves, it can just contact the pushing block 20, thereby improving the cleaning effect of the pushing block 20.

[0049] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filtering structure for use in the production of lost foam for electric power fittings, comprising a first main runner (2), characterized in that: The lower end of the first main runner (2) is movably connected to the second main runner (3), and the lower end of the first main runner (2) is provided with a filter component, and the filter component is used to filter impurities; The filter assembly comprises a filter housing (1) fixedly connected to the lower end of the first main runner (2); a filter screen (12) is rotatably connected inside the filter housing (1); a motor (4) is fixedly connected to the upper end of the filter housing (1); a rotating rod (13) is fixedly connected to the output end of the motor (4); the lower end of the rotating rod (13) is fixedly connected to the upper end of the filter screen (12); a rod wall of the rotating rod (13) is fixedly connected to a first bevel gear (14); a first slide groove (8) is provided on the right side of the inner wall of the filter housing (1); a reciprocating screw rod (7) is rotatably connected inside the first slide groove (8); ), the left side of the reciprocating screw rod (7) is fixedly connected with a second bevel gear (19) meshing with the first bevel gear (14), the interior of the first slide groove (8) is slidably connected with a first slider (26), the interior of the first slider (26) is meshingly connected with the rod wall of the reciprocating screw rod (7), the lower end of the first slider (26) is movably connected with a push block (20), the interior of the filter shell (1) is movably connected with a scraper (16), the right side of the filter shell (1) is fixedly connected with a collecting box (5), and the lower end of the first main runner (2) is located above the filter screen (12); A support block (21) is fixedly connected to the inner wall of the lower end of the filter housing (1); a groove (24) is provided at the upper end of the support block (21); a knocking block (22) is slidably connected inside the groove (24); a first spring (23) is fixedly connected to the lower end of the knocking block (22); and a protrusion (10) is evenly fixedly connected to the lower end of the filter screen (12); The rear end of the first sliding block (26) is rotatably connected to a rod (27), the upper end of the rod (27) is fixedly connected to a first gear (18), the rear end of the inner wall of the first sliding groove (8) is evenly fixedly connected to a first tooth block (17), the first tooth block (17) is meshedly connected to the first gear (18), the lower end of the rod (27) is rotatably connected to a round block (29), the inner wall of the round block (29) is evenly provided with a rectangular groove (30), the interior of the rectangular groove (30) is slidably connected to an arc block (32), one side of the arc block (32) is evenly fixedly connected to a second spring (31), the rod wall of the rod (27) is evenly provided with a clamping groove (28), the clamping groove (28) is clamped with the arc block (32), the lower end of the round block (29) is fixedly connected to the pushing block (20), and both sides of the lower end of the first sliding block (26) are fixedly connected to limit rods (25).

2. The filtering structure used in the lost foam production of electric power fittings according to claim 1, characterized in that: The right side of the collecting box (5) is rotatably connected with a cover plate (6).

3. The filtering structure used in the lost foam production of electric power fittings according to claim 2 is characterized in that: The inner wall of the collecting box (5) is provided with a second slide groove (33) at the front and rear positions, the second slide groove (33) is slidably connected to the inside with a second slider (36), the two second sliders (36) are fixedly connected to a cleaning roller (38) on the opposite side, a third spring (34) is fixed to the right side of the second slider (36), the cleaning roller (38) is fixedly connected to the front and rear positions with a second gear (35), the upper end of the second slide groove (33) is evenly fixedly connected with a second tooth block (37), and the second tooth block (37) is meshingly connected with the outer side of the second gear (35).

4. The filtering structure used in the lost foam production of electric power fittings according to claim 3 is characterized in that: The outer side of the cleaning roller (38) is evenly provided with movable grooves (15), the interior of the movable groove (15) is slidably connected with a scraper block (39), and one side of the scraper block (39) is fixedly connected with a fourth spring (11).

5. The filtering structure used in the lost foam production of electric power fittings according to claim 4 is characterized in that: A telescopic rod (40) is fixedly connected to the inner wall of the upper end of the filter housing (1), a fifth spring (41) is fixedly connected inside the telescopic rod (40), and the lower end of the telescopic rod (40) is fixedly connected to the upper end of the scraper (16).

6. The filtering structure used in the lost foam production of electric power fittings according to claim 1, characterized in that: A flow reduction block (9) is fixedly connected inside the first main runner (2).

7. The filtering structure used in the lost foam production of electric power fittings according to claim 1, characterized in that: The first main runner (2) and the filter housing (1) are both arranged at an inclination.

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