Multi-stage filter

Abstract

The utility model discloses a multistage filter, which belongs to the technical field of filters and comprises a tank body, a motor is mounted at the top of the tank body through bolts, a liquid inlet is arranged above the left side of the tank body, a liquid outlet is arranged below the right side of the tank body, and a first filter screen, a second filter screen and a third filter screen are respectively connected inside the tank body through bolts; the multi-stage filter further comprises a rotating rod which is connected with the middle position in the tank body in a penetrating manner. According to the multi-stage filter, a rotating rod is driven by a motor to rotate forwards, a sleeve block is used for driving a cleaning brush to rotate, impurities on a first filter screen, a second filter screen and a third filter screen can be automatically cleaned, the labor amount of workers is reduced, the working efficiency is improved, meanwhile, under the action of a magnet and a first spring, the cleaning brush moves up and down in a reciprocating mode, and the cleaning efficiency is improved. And the first filter screen, the second filter screen and the third filter screen are impacted, so that impurities on the surface of the cleaning brush are shaken off, and the subsequent cleaning effect of the cleaning brush is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a multi-stage filter. Background Art

[0002] Sewage contains various bacteria, viruses and harmful substances, which can cause great harm to human health. At this time, sewage needs to be treated, and filters are needed in the sewage treatment process;

[0003] For example, a multi-stage filter with the publication number "CN217188383U" is disclosed. Water containing impurities enters the primary filter chamber and the secondary filter chamber in sequence from the water inlet, and undergoes secondary filtration treatment, and then enters the sedimentation chamber for sedimentation treatment, while the upper clean water enters the buffer chamber from the through slot for storage until the liquid level is higher than the overflow port, and then overflows from the overflow port. Since multi-stage filtration and sedimentation treatment can be performed, the water purification and filtration effect is improved, and the water purification efficiency is improved. After the cover plate is flipped downward, the sediment in the sedimentation chamber can be discharged, and when the cover plate is flipped downward, the flip plate is flipped downward and the through slot is closed, so that the clean water in the buffer chamber will not be discharged. In addition, a stirring rod is provided, so that when the connecting rod moves, the stirring rod can produce a stirring effect on the sediment in the sedimentation chamber, thereby avoiding sediment blockage and poor discharge.

[0004] When the above mechanism is in use, it performs multi-stage filtration on water containing impurities through the primary filter chamber and the secondary filter chamber. However, after long-term use, the filter holes will be clogged with impurities, and the staff are required to take out the filter regularly for cleaning, which will increase the workload of the staff and reduce work efficiency.

[0005] Therefore, we proposed a multi-stage filter that can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-stage filter to solve the problem that after long-term use, the filter holes of the filter proposed in the above-mentioned background technology will be blocked by impurities, requiring workers to take out the filter regularly for cleaning, but this will increase the workload of the workers and lead to reduced work efficiency.

[0007] To achieve the above object, the utility model provides the following technical solution: a multi-stage filter, comprising a tank body, a motor is bolted to the top of the tank body, a liquid inlet is opened at the upper left side of the tank body, and a liquid discharge port is opened at the lower right side of the tank body, and a first filter screen, a second filter screen and a third filter screen are bolted to the inside of the tank body;

[0008] A multi-stage filter, further comprising:

[0009] A rotating rod is connected through the middle position of the tank body, and the top of the rotating rod is fixedly connected to the output end of the motor. Blocks are fixedly sleeved at equal intervals on the outside of the rotating rod, and sliding grooves are provided on both sides of the left and right sides of the block.

[0010] The inner wall of the slide groove is slidably connected with a slider, the side of the slider is fixedly connected with a cleaning brush, and a first spring is installed between the top of the slider and the inner wall of the slide groove;

[0011] Support plates are fixed at equal intervals on the left and right sides of the inner wall of the tank body, and magnets are installed between the bottom of the support plate and the top of the cleaning brush.

[0012] Preferably, the first filter, the second filter and the third filter are all arranged in a funnel shape, the slider and the slide groove are both arranged in a "T" shape, and the bristles of the cleaning brush are in contact with the surfaces of the first filter, the second filter and the third filter.

[0013] Preferably, the magnet on the support plate corresponds to the magnet on the cleaning brush in position, and the magnetic poles of the two magnets on opposite sides are opposite.

[0014] Preferably, the interior of the rotating rod is hollow, and the rotating rod is connected to the tank body by a bearing.

[0015] Preferably, a slag discharge port is opened at an equal angle on the outer side of the rotating rod, and a accommodating groove is opened on the inner wall of the rotating rod above the slag discharge port, the inner wall of the accommodating groove is slidably connected with a sealing plate, and a second spring is installed between the top of the sealing plate and the inner wall of the accommodating groove, a reciprocating screw is arranged inside the rotating rod, and a movable sleeve is sleeved at equal intervals on the outer side of the reciprocating screw, the movable sleeve and the tops of multiple sealing plates are fixedly connected by a traction rope, a sleeve is fixed above the inside of the rotating rod, the top end of the reciprocating screw passes through the interior of the sleeve, and a ratchet assembly is installed between the outer side of the upper end of the reciprocating screw and the interior of the sleeve.

[0016] Preferably, the three movable sleeves are threadedly connected to the reciprocating screw rod, and the left sides of the three movable sleeves are slidably connected to the inner wall of the rotating rod.

[0017] Preferably, the area of ​​the sealing plate is larger than the area of ​​the slag discharge port, and the outer side of the sealing plate is tightly fitted with the inner wall of the slag discharge port.

[0018] Compared with the prior art, the beneficial effects of the utility model are: the multi-stage filter adopts a new structural design, the specific contents of which are as follows:

[0019] (1) When the motor drives the rotating rod to rotate forward, the sleeve block drives the cleaning brush to rotate, and automatically cleans the impurities on the first filter screen, the second filter screen and the third filter screen to prevent the impurities from clogging the filter holes of the filter screen and affecting the filtering effect;

[0020] Furthermore, when the cleaning brush moves to the bottom of the support plate, the principle of magnet attraction is utilized to make the cleaning brush slide upward in the slide groove through the slider, and when the cleaning brush moves away from the support plate, the elastic force of the first spring is utilized to drive the slider to slide downward in the slide groove, and at the same time drive the cleaning brush to move downward, and repeat the above operation, so that the cleaning brush continuously hits the surfaces of the first filter screen, the second filter screen and the third filter screen, and impurities on the surface of the cleaning brush can be shaken off, thereby improving the subsequent cleaning effect of the cleaning brush;

[0021] (2) The motor drives the rotating rod to reverse, and the sleeve drives the reciprocating screw rod to rotate by using the ratchet assembly, so that the movable sleeve moves downward, and the sealing plate is pulled upward by the traction rope, so that the sealing plate no longer blocks the slag discharge port. At this time, the impurities remaining on the first filter screen, the second filter screen and the third filter screen will enter the rotating rod from the slag discharge port and be discharged from the bottom of the tank body, thereby facilitating the discharge of impurities remaining on the first filter screen, the second filter screen and the third filter screen out of the tank body;

[0022] Furthermore, when the slag discharge is completed, with the rotation of the reciprocating screw, the movable sleeve moves upward and no longer pulls the traction rope. At this time, the sealing plate resets downward under the elastic force of the second spring and blocks the slag discharge port, thereby preventing sewage from entering the rotating rod from the slag discharge port when filtering sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure between the slider and the slide groove of the utility model;

[0025] Figure 3 This is a schematic diagram of the main cross-sectional structure of the ratchet assembly of the utility model;

[0026] Figure 4 This is a schematic diagram of the top-sectional structure of the ratchet assembly of the utility model;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the cleaning brush and the support plate of the utility model;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the sealing plate and the movable sleeve of the utility model;

[0029] Figure 7 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0030] In the figure: 1. tank body; 2. first filter screen; 3. rotating rod; 4. second filter screen; 5. third filter screen; 6. sleeve block; 7. slider; 8. slide groove; 9. first spring; 10. cleaning brush; 11. support plate; 12. magnet; 13. reciprocating screw rod; 14. movable sleeve; 15. traction rope; 16. sealing plate; 17. slag discharge port; 18. second spring; 19. accommodating groove; 20. sleeve; 21. ratchet assembly. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-Figure 7 , the utility model provides the following technical solutions: a multi-stage filter;

[0033] Embodiment 1: In order to solve the problem that the filter holes of the filter screen will be blocked by impurities after long-term use in the prior art, the staff needs to take out the filter screen regularly for cleaning, but this will increase the workload of the staff and lead to reduced work efficiency. Therefore, the following solution is disclosed, and specific reference is made to Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, it includes a tank body 1, a motor is bolted to the top of the tank body 1, a liquid inlet is opened at the upper left side of the tank body 1, and a liquid discharge port is opened at the lower right side of the tank body 1, and a first filter screen 2, a second filter screen 4 and a third filter screen 5 are bolted to the inside of the tank body 1 respectively;

[0034] It also includes: a rotating rod 3 is connected through the middle position inside the tank body 1, the interior of the rotating rod 3 is hollow, and the rotating rod 3 is connected to the tank body 1 by a bearing, and the top of the rotating rod 3 is fixedly connected to the output end of the motor, and sleeve blocks 6 are sleeved and fixed at equal intervals on the outside of the rotating rod 3, and slide grooves 8 are opened on the left and right sides of the sleeve blocks 6; a slider 7 is slidably connected to the inner wall of the slide groove 8, and a cleaning brush 10 is fixedly connected to the side of the slider 7, and the first filter screen 2, the second filter screen 4 and the third filter screen 5 are all funnel-shaped, and the brush position of the cleaning brush 10 contacts the surfaces of the first filter screen 2, the second filter screen 4 and the third filter screen 5;

[0035] The sewage enters the tank body 1 from the liquid inlet, and at this time, the sewage can be filtered in multiple stages through the first filter screen 2, the second filter screen 4 and the third filter screen 5. Then, the motor is started. When the motor drives the rotating rod 3 to rotate forward, the sleeve block 6 drives the cleaning brush 10 to rotate along the surface of the first filter screen 2, the second filter screen 4 and the third filter screen 5, and then the impurities at the filter hole position of the first filter screen 2, the second filter screen 4 and the third filter screen 5 are automatically cleaned, thereby reducing the labor of the staff and improving the work efficiency. Then, the sewage after multi-stage filtration is discharged from the drain port.

[0036] Embodiment 2: Different from Embodiment 1, this embodiment utilizes the effect of magnet 12 and first spring 9 to make multiple cleaning brushes 10 reciprocately impact the first filter screen 2, the second filter screen 4 and the third filter screen 5, thereby shaking off the impurities on the surface of the cleaning brush 10 and improving the subsequent cleaning effect of the cleaning brush 10. For details, refer to Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, the slider 7 and the slide groove 8 are both arranged in a "T" shape, and a first spring 9 is installed between the top of the slider 7 and the inner wall of the slide groove 8; support plates 11 are fixed at equal intervals on the left and right sides of the inner wall of the tank body 1, and magnets 12 are installed between the bottom of the support plate 11 and the top of the cleaning brush 10, and the magnets 12 on the support plate 11 correspond to the magnets 12 on the cleaning brush 10, and the magnetic poles of the two magnets 12 facing each other are opposite;

[0037] When the cleaning brush 10 moves to the bottom of the support plate 11, the principle of opposite charges attract each other is utilized to make the cleaning brush 10 slide upward in the slide groove 8 through the slider 7. When the cleaning brush 10 moves away from the support plate 11, the elastic force of the first spring 9 is utilized to drive the slider 7 to slide downward in the slide groove 8, and at the same time drive the cleaning brush 10 to move downward. The above operation is repeated, so that multiple cleaning brushes 10 continuously hit the surfaces of the first filter 2, the second filter 4 and the third filter 5, thereby shaking off impurities on the surface of the cleaning brush 10 and improving the subsequent cleaning effect of the cleaning brush 10.

[0038] Embodiment 3: Different from Embodiment 2, this embodiment can facilitate the discharge of impurities retained by the first filter screen 2, the second filter screen 4 and the third filter screen 5 out of the tank body 1. For details, refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, a slag discharge port 17 is provided at an equal angle on the outer side of the rotating rod 3, and a receiving groove 19 is provided on the inner wall of the rotating rod 3 above the slag discharge port 17, and a sealing plate 16 is slidably connected to the inner wall of the receiving groove 19, and a second spring 18 is installed between the top of the sealing plate 16 and the inner wall of the receiving groove 19, the area of ​​the sealing plate 16 is larger than the area of ​​the slag discharge port 17, and the outer side of the sealing plate 16 is tightly fitted with the inner wall of the slag discharge port 17, and a reciprocating screw 13 is provided inside the rotating rod 3, and the reciprocating screw The outer side of 13 is sleeved with movable sleeves 14 at equal intervals, the three movable sleeves 14 are threadedly connected to the reciprocating screw rod 13, and the left sides of the three movable sleeves 14 are slidably connected to the inner wall of the rotating rod 3, the movable sleeves 14 and the tops of the multiple sealing plates 16 are fixedly connected by traction ropes 15, a sleeve 20 is fixed above the inside of the rotating rod 3, the top end of the reciprocating screw rod 13 passes through the inside of the sleeve 20, and a ratchet assembly 21 is installed between the outer side of the upper end of the reciprocating screw rod 13 and the inside of the sleeve 20;

[0039] The motor drives the rotating rod 3 to reverse, and at this time the sleeve 20 uses the ratchet assembly 21 to drive the reciprocating screw rod 13 to rotate, so that the movable sleeve 14 moves downward, and the traction rope 15 is used to pull the sealing plate 16 upward, so that the sealing plate 16 no longer blocks the slag discharge port 17. At this time, the impurities remaining on the first filter screen 2, the second filter screen 4 and the third filter screen 5 will enter the rotating rod 3 from the slag discharge port 17, and open from the bottom of the rotating rod 3 to the outside of the discharge tank body 1, so as to facilitate the discharge of impurities remaining on the first filter screen 2, the second filter screen 4 and the third filter screen 5 to the outside of the tank body 1, and then when the slag discharge is completed, as the reciprocating screw rod 13 continues to rotate, the movable sleeve 14 will move upward, and the traction rope 15 will no longer be pulled. At this time, the sealing plate 16 is reset downward under the elastic force of the second spring 18, and the slag discharge port 17 is blocked, thereby preventing sewage from entering the rotating rod 3 from the slag discharge port 17 when filtering sewage.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-stage filter, comprising a tank body (1), a motor being bolted to the top of the tank body (1), a liquid inlet being provided at the top of the left side of the tank body (1), and a liquid discharge port being provided at the bottom of the right side of the tank body (1), and a first filter screen (2), a second filter screen (4) and a third filter screen (5) being bolted to the inside of the tank body (1); It is characterized in that Also includes: A rotating rod (3) is connected through the middle of the tank body (1), and the top of the rotating rod (3) is fixedly connected to the output end of the motor. A sleeve block (6) is sleeved and fixed at equal intervals on the outer side of the rotating rod (3), and a slide groove (8) is provided on both the left and right sides of the sleeve block (6); The inner wall of the slide groove (8) is slidably connected to a slider (7), a side of the slider (7) is fixedly connected to a cleaning brush (10), and a first spring (9) is installed between the top of the slider (7) and the inner wall of the slide groove (8); Support plates (11) are fixed at equal intervals on the left and right sides of the inner wall of the tank body (1), and magnets (12) are installed between the bottom of the support plate (11) and the top of the cleaning brush (10).

2. A multi-stage filter according to claim 1, characterized in that: The first filter screen (2), the second filter screen (4) and the third filter screen (5) are all arranged in a funnel shape, the slider (7) and the slide groove (8) are both arranged in a "T" shape, and the bristles of the cleaning brush (10) are in contact with the surfaces of the first filter screen (2), the second filter screen (4) and the third filter screen (5).

3. A multi-stage filter according to claim 1, characterized in that: The magnet (12) on the support plate (11) corresponds in position to the magnet (12) on the cleaning brush (10), and the magnetic poles of the facing surfaces of the two magnets (12) are opposite.

4. A multi-stage filter according to claim 1, characterized in that: The interior of the rotating rod (3) is hollow, and the rotating rod (3) and the tank body (1) are connected via a bearing.

5. A multi-stage filter according to claim 1, characterized in that: The outer side of the rotating rod (3) is provided with a slag discharge port (17) at an equal angle, and the inner wall of the rotating rod (3) is provided with a receiving groove (19) above the slag discharge port (17), the inner wall of the receiving groove (19) is slidably connected with a sealing plate (16), and a second spring (18) is installed between the top of the sealing plate (16) and the inner wall of the receiving groove (19), a reciprocating screw rod (13) is arranged inside the rotating rod (3), and a movable sleeve (14) is sleeved at equal intervals on the outer side of the reciprocating screw rod (13), and the movable sleeve (14) and the tops of the plurality of sealing plates (16) are fixedly connected by a traction rope (15), a sleeve (20) is fixed above the inside of the rotating rod (3), the top end of the reciprocating screw rod (13) passes through the inside of the sleeve (20), and a ratchet assembly (21) is installed between the outer side of the upper end of the reciprocating screw rod (13) and the inside of the sleeve (20).

6. A multi-stage filter according to claim 5, characterized in that: The three movable sleeves (14) are threadedly connected to the reciprocating screw rod (13), and the left sides of the three movable sleeves (14) are slidably connected to the inner wall of the rotating rod (3).

7. A multi-stage filter according to claim 5, characterized in that: The area of ​​the sealing plate (16) is larger than the area of ​​the slag discharge port (17), and the outer side of the sealing plate (16) is tightly fitted to the inner wall of the slag discharge port (17).

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