Switching type double-pass filtering device

Abstract

The utility model discloses a switching type double-pass filtering device which comprises a connecting seat and a driving assembly, filter shells are arranged at the left end and the right end of the connecting seat, filter elements are mounted in the filter shells, a rotating core is rotationally connected into the connecting seat, runner grooves are formed in the upper end and the lower end of the outer arc surface of the rotating core, and an upper cover is arranged at the upper end of the connecting seat; the driving assembly comprises a connecting shaft, a worm gear and a worm, the connecting shaft is rotationally connected to the interior of the upper cover, the lower end of the connecting shaft is fixedly connected with the upper end of the rotating core, the worm gear is arranged in the middle of the outer arc surface of the connecting shaft, the worm is rotationally connected to the right end of the interior of the upper cover through a bearing, and the worm is in meshed connection with the worm gear; according to the switching type double-pass filtering device, the speed reduction assembly can drive the switching assembly to rotate, labor is saved in operation, a filtering system can normally and continuously work during switching, operation is convenient, and use convenience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a switching double-pass filtering device. Background Technique

[0002] Filters are required in many industries. Traditional filters use filter screens or filter materials to intercept impurities in the flowing liquid fluid, so as to achieve the effect of cleaning the liquid fluid. After long-term use, the filter screen needs to be cleaned regularly. During the cleaning process, the filtration system needs to be cut off, and thus long-term shutdown maintenance is required. There are also switching double-pass filtering devices. The switching double-pass filtering device generally consists of two filtration channels. During use, the handle can be rotated to drive the internal rotating core to rotate, so that one of the filtration channels is connected to the external system, and then the other filtration channel can be cleaned, which can avoid long-term shutdown maintenance. Directly rotating the driving switching component lacks a speed reduction component, and the operation is relatively laborious. The rotating core generally has a T-shaped flow channel. Therefore, during the switching process, the rotating core will briefly close the two filtration channels, which will affect the normal operation of the filtration system. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a switching double-pass filtering device, which can drive the switching component to rotate through a speed reduction component, with labor-saving operation, and the filtration system can work normally and continuously during switching, and can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A switching double-pass filtering device, including a connecting seat and a driving component;

[0005] Connecting seat: Filter shells are provided at both the left and right ends thereof. Filter cores are installed inside the filter shells. A rotating core is rotatably connected inside the connecting seat. Flow channel grooves are opened at both the upper and lower ends of the outer arc surface of the rotating core. An upper cover is provided at the upper end of the connecting seat;

[0006] Driving component: It includes a connecting shaft, a worm gear and a worm. The connecting shaft is rotatably connected inside the upper cover. The lower end of the connecting shaft is fixedly connected to the upper end of the rotating core. A worm gear is provided in the middle of the outer arc surface of the connecting shaft. The right end inside the upper cover is rotatably connected to a worm through a bearing. The worm is meshed with the worm gear. During use, the switching component can be driven to rotate through the speed reduction component, so the operation is labor-saving. At the same time, during the switching process, the two filtering components on both sides can be conducted simultaneously, and then work unilaterally. Therefore, during the switching process, the filtration system can work normally and continuously, and positioning can be carried out during the rotation process, with convenient operation and good usability.

[0007] Further, the driving component further includes a handwheel, and the handwheel is arranged at the rear end of the worm, which is convenient to control the rotation of the worm.

[0008] Further, the driving assembly further includes a cross indicating needle, which is arranged at the upper end of the connecting shaft. The cross indicating needle corresponds to the position of the flow channel groove, facilitating the determination of the position of the flow channel groove.

[0009] Further, an installation seat is provided at the upper end of the outer arc surface of the connecting shaft. A positioning column is slidably connected to the inside of the right end of the installation seat. Four uniformly distributed positioning holes are opened on the upper surface of the upper cover, and the positioning holes are all arranged in cooperation with the positioning column, facilitating the positioning of the rotating core.

[0010] Further, a lower retaining piece is provided at the lower end of the outer arc surface of the positioning column. The lower retaining piece is located at the upper end of the bottom wall of the right end of the installation seat. The upper end of the outer arc surface of the positioning column is slidably connected to an upper retaining piece, and the lower surface of the upper retaining piece is fixedly connected to the upper surface of the installation seat. A spring is movably sleeved on the middle part of the outer arc surface of the positioning column, and the spring is located between the lower retaining piece and the upper retaining piece, facilitating the positioning of the positioning column.

[0011] Further, sewage discharge pipes are provided at the lower ends of the filter shells, and sewage discharge valves are connected in series at the lower ends of the sewage discharge pipes, facilitating the discharge of internal impurities.

[0012] Further, two sealing rings are provided in the middle of the outer arc surface of the rotating core. The two sealing rings are located at the upper and lower ends of the upper flow channel groove, improving the sealing performance between the rotating core and the connecting seat.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: This switching type double-pass filter device has the following advantages:

[0014] Rotate the handwheel. The handwheel drives the worm to rotate. The worm drives the connecting shaft to rotate through the worm gear. The connecting shaft drives the cross indicating needle, the installation seat and the rotating core to rotate synchronously. The rotating core drives the flow channel groove to rotate synchronously. After the flow channel groove rotates 180 degrees, the other filter shell is conducted. The cross indicating needle shows the position of the flow channel groove. During the rotation process, control the flow channel groove to rotate from the front side. Then, during the cutting-off process, the two filter shells on both sides will be connected at the same time. During use, the deceleration assembly can drive the switching assembly to rotate, making the operation labor-saving. At the same time, during the switching process, the two filter components on both sides can be conducted at the same time, and then work unilaterally. Therefore, during the switching process, the filtering system can work continuously and normally, and the operation is convenient and the usability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is an enlarged schematic structural diagram at A of the present utility model.

[0017] In the figure: 1 connecting seat, 2 rotating core, 3 flow channel groove, 4 upper cover, 5 driving assembly, 51 connecting shaft, 52 worm gear, 53 worm, 54 hand wheel, 55 cross indicating needle, 6 filter housing, 7 filter element, 8 sewage discharge pipe, 9 sewage discharge valve, 10 sealing ring, 11 positioning post, 12 positioning hole, 13 lower retaining piece, 14 spring, 15 upper retaining piece, 16 mounting seat. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1-2 , this embodiment provides a technical solution: a switching double-pass filtering device, including a connecting seat 1 and a driving assembly 5;

[0020] Connecting seat 1: Filter housings 6 are provided at both the left and right ends thereof. Filter elements 7 are installed inside the filter housings 6. A rotating core 2 is rotatably connected inside the connecting seat 1. Flow channel grooves 3 are provided at both the upper and lower ends of the outer arc surface of the rotating core 2. The flow channel grooves 3 exceed the central axis of the rotating core 2. The flow channel grooves 3 can simultaneously connect the two filter housings 6 on both sides. An upper cover 4 is provided at the upper end of the connecting seat 1. The medium to be filtered enters the interior through the round hole at the lower front side of the connecting seat 1 and is guided through the lower flow channel groove 3. The flow channel groove 3 connects the liquid outlet on one side and then enters the lower end inside the filter housing 6. Then the medium passes through the filter element 7 and enters the upper end inside the filter housing 6. Then it enters the upper end inside the connecting seat 1 through the upper liquid outlet pipe and flows out from the round hole at the upper front side of the connecting seat 1 through the upper flow channel groove 3. The rotating core 2 drives the flow channel grooves 3 to rotate synchronously. After the flow channel grooves 3 rotate 180 degrees, the filter housing 6 on the other side is conducted. Sewage discharge pipes 8 are provided at the lower ends of the filter housings 6. Sewage discharge valves 9 are connected in series at the lower ends of the sewage discharge pipes 8. The sewage discharge pipes 8 and the sewage discharge valves 9 facilitate the discharge of the filtered impurities inside the filter housings 6. Two sealing rings 10 are provided in the middle of the outer arc surface of the rotating core 2. The two sealing rings 10 are located at the upper and lower ends of the upper flow channel groove 3. The sealing rings 10 are rubber sealing rings, which improve the sealing performance between the rotating core 2 and the connecting seat 1;

[0021] Drive assembly 5: It includes a connecting shaft 51, a worm gear 52, and a worm 53. The connecting shaft 51 is rotatably connected to the inside of the upper cover 4. The lower end of the connecting shaft 51 is fixedly connected to the upper end of the rotating core 2. In the middle of the outer arc surface of the connecting shaft 51, there is a worm gear 52. At the right end inside the upper cover 4, there is a worm 53 rotatably connected through a bearing. The worm 53 is meshed with the worm gear 52. The worm 53 drives the connecting shaft 51 to rotate through the worm gear 52, and the connecting shaft 51 drives the rotating core 2 to rotate. The drive assembly 5 further includes a handwheel 54. The handwheel 54 is arranged at the rear end of the worm 53. Rotating the handwheel 54 drives the worm 53 to rotate. The drive assembly 5 further includes a cross indicating needle 55. The cross indicating needle 55 is arranged at the upper end of the connecting shaft 51. The cross indicating needle 55 corresponds to the position of the flow channel groove 3. The cross indicating needle 55 shows the position of the flow channel groove 3. During the rotation process, it controls the flow channel groove 3 to rotate from the front side. Then, during the cutting-off process, the two side filter shells 6 will be connected simultaneously, ensuring that during the switching process, the filter flow channel will not be cut off and normal filtration can be carried out. At the upper end of the outer arc surface of the connecting shaft 51, there is a mounting seat 16. Inside the right end of the mounting seat 16, there is a positioning post 11 slidably connected. On the upper surface of the upper cover 4, there are four evenly distributed positioning holes 12. The positioning holes 12 are all arranged in cooperation with the positioning post 11. At the lower end of the outer arc surface of the positioning post 11, there is a lower retaining piece 13. The lower retaining piece 13 is located above the bottom wall at the right end of the mounting seat 16. On the upper end of the outer arc surface of the positioning post 11, there is an upper retaining piece 15 slidably connected. The lower surface of the upper retaining piece 15 is fixedly connected to the upper surface of the mounting seat 16. In the middle of the outer arc surface of the positioning post 11, there is a spring 14 movably sleeved. The spring 14 is located between the lower retaining piece 13 and the upper retaining piece 15. Pulling up the positioning post 11, the positioning post 11 drives the lower retaining piece 13 to move upward and compress the spring 14. The lower end of the positioning post 11 is separated from the positioning hole 12. Releasing the positioning post 11, the spring 14 drives the positioning post 11 to move downward through the lower retaining piece 13 under the action of the upper retaining piece 15. The positioning post 11 slides relative to the upper surface of the upper cover 4. After the positioning post 11 rotates 90 degrees, the positioning post 11 will be inserted downward into the inside of the positioning hole 12, restricting the rotation of the connecting shaft 51 and enabling the positioning of the rotating core 2.

[0022] The working principle of a switchable double-pass filtering device provided by the utility model is as follows: when in use, the medium to be filtered enters the interior through the circular hole on the lower side of the front end of the connecting seat 1, and is guided through the flow channel groove 3 on the lower side. The flow channel groove 3 connects the outlet liquid on one side and then enters the lower end of the filter shell 6. Then the medium passes through the filter core 7 to enter the upper end of the filter shell 6, and then enters the upper end of the connecting seat 1 through the upper outlet pipe, and flows out from the circular hole on the upper side of the front end of the connecting seat 1 through the flow channel groove 3 on the upper side. When it is necessary to switch the filtering flow channel, the hand wheel 54 is rotated and the positioning column 11 is lifted upward at the same time. The positioning column 11 drives the lower baffle 13 to move up and compress the spring 14. The lower end of the positioning column 11 is separated from the positioning hole 12. The hand wheel 54 drives the worm 53 to rotate. The worm 53 drives the connecting shaft 51 to rotate through the worm gear 52. The connecting shaft 51 drives the cross indicator needle 55, the mounting seat 16 and the rotating The rotating core 2 rotates synchronously, and the mounting seat 16 drives the positioning column 11 to rotate synchronously and stagger the position of the positioning hole 12, and then the positioning column 11 is released. The spring 14 drives the positioning column 11 to move downward through the lower baffle 13 under the action of the upper baffle 15, and the positioning column 11 and the upper surface of the upper cover 4 slide relative to each other. After the positioning column 11 rotates ninety degrees, the positioning column 11 will be inserted downward into the interior of the positioning hole 12, which will limit the rotation of the connecting shaft 51, and then the positioning column 11 will continue to be pulled upward, and the connecting shaft 51 continues to rotate. The rotating core 2 drives the flow channel groove 3 to rotate synchronously. After the flow channel groove 3 rotates one hundred and eighty degrees, the filter shell 6 on the other side is turned on, and the cross indicator needle 55 displays the position of the flow channel groove 3. During the rotation, the flow channel groove 3 is controlled to rotate from the front side, and then the filter shells 6 on both sides will be connected at the same time during the cutting process to ensure that the filter flow channel will not be cut off during the switching process, and normal filtering can be performed.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A switching double-pass filtering device, characterized in that: It includes a connecting seat (1) and a driving component (5); Connecting seat (1): Filter housings (6) are provided at both the left and right ends thereof. Filter cores (7) are installed inside the filter housings (6). A rotating core (2) is rotatably connected inside the connecting seat (1). Flow channel grooves (3) are formed at both the upper and lower ends of the outer arc surface of the rotating core (2). An upper cover (4) is provided at the upper end of the connecting seat (1); Driving component (5): It includes a connecting shaft (51), a worm gear (52) and a worm (53). The connecting shaft (51) is rotatably connected inside the upper cover (4). The lower end of the connecting shaft (51) is fixedly connected to the upper end of the rotating core (2). A worm gear (52) is provided in the middle of the outer arc surface of the connecting shaft (51). The right end inside the upper cover (4) is rotatably connected to a worm (53) through a bearing. The worm (53) is meshed with the worm gear (52).

2. The switching dual-pass filtering device according to claim 1, wherein: The driving component (5) further includes a handwheel (54), and the handwheel (54) is arranged at the rear end of the worm (53).

3. The switching double-pass filtering device according to claim 1, wherein: The driving component (5) further includes a cross indicating needle (55), and the cross indicating needle (55) is arranged at the upper end of the connecting shaft (51). The cross indicating needle (55) corresponds to the position of the flow channel groove (3).

4. The switching double-pass filtering device according to claim 1, wherein: An installation seat (16) is provided at the upper end of the outer arc surface of the connecting shaft (51). A positioning column (11) is slidably connected inside the right end of the installation seat (16). Four evenly distributed positioning holes (12) are formed on the upper surface of the upper cover (4). The positioning holes (12) are all arranged in cooperation with the positioning column (11).

5. The switching double-pass filtering device according to claim 4, wherein: A lower retaining piece (13) is provided at the lower end of the outer arc surface of the positioning column (11). The lower retaining piece (13) is located above the bottom wall at the right end of the installation seat (16). An upper retaining piece (15) is slidably connected to the upper end of the outer arc surface of the positioning column (11). The lower surface of the upper retaining piece (15) is fixedly connected to the upper surface of the installation seat (16). A spring (14) is movably sleeved on the middle part of the outer arc surface of the positioning column (11). The spring (14) is located between the lower retaining piece (13) and the upper retaining piece (15).

6. The switching dual-pass filtering device according to claim 1, characterized in that: Sewage pipes (8) are provided at the lower ends of the filter housings (6), and sewage valves (9) are connected in series at the lower ends of the sewage pipes (8).

7. The switching double-pass filtering device according to claim 1, wherein: Two sealing rings (10) are provided in the middle of the outer arc surface of the rotating core (2). The two sealing rings (10) are located at the upper and lower ends of the upper flow channel groove (3).

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