PP cotton filter element and activated carbon composite integrated efficient filtering device

Abstract

The invention belongs to the technical field of filtering devices, and particularly relates to a PP cotton filter element and activated carbon composite integrated efficient filtering device which comprises a fixed cylinder, one side of the fixed cylinder is rotationally connected with an opening and closing cover, and the opening and closing cover is rotationally connected with the fixed cylinder through a first rotating shaft; one side of the fixed cylinder is rotationally connected with a filter cylinder located between the opening and closing cover and the fixed cylinder, the top and the bottom of the filter cylinder are both in threaded connection with sealing covers, and the top end and the bottom end in the fixed cylinder are both provided with lifting matching pipes capable of axially displacing to achieve connection and disconnection of a medium channel; according to the invention, a split overturning opening and closing design of'fixed cylinder-opening and closing cover-filter cylinder 'is adopted, and a lifting matching pipe structure driven by gear transmission is matched, so that an external conveying pipeline connected with a connecting pipe at the top and the bottom of the fixed cylinder does not need to be disassembled when the filter element is replaced, and the filter element can be replaced by only overturning the opening and closing cover and the filter cylinder and disassembling and assembling the sealing cover through a hexagonal plate; the operation process is greatly shortened, and the operation and maintenance time is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of filtering devices, in particular to a PP cotton filter core and activated carbon composite integrated high-efficiency filtering device. BACKGROUND

[0002] In many fields such as water treatment and industrial fluid filtration, a filtering device is a core equipment for realizing impurity separation and guaranteeing medium cleanliness. A core filtering component of an existing filtering device is usually a filtering core. The filtering core generally comprises a filter cylinder, a water inlet end and a water outlet end. The filter cylinder is a bearing main body of a filtering core material and is internally filled with activated carbon, filter cotton and other materials with specific filtering functions. The water inlet end and the water outlet end are connected to a conveying system of a to-be-filtered medium and a receiving system of clean medium through connecting pipelines, so that a complete filtering flow channel is formed, and the to-be-filtered medium can smoothly enter the filter cylinder, and the clean medium meeting the requirements is discharged from the water outlet end after the impurities are adsorbed and intercepted by the filtering core material.

[0003] However, in actual use, with the prolongation of the filtering time, the filtering core material in the filter cylinder gradually loses the filtering capacity due to the adsorption of a large amount of impurities. At this time, the filtering core material must be regularly replaced to guarantee the continuous and effective operation of the filtering device. Since the water inlet end and the water outlet end are fixedly connected with the external connecting pipelines, and the filter cylinder is integrally or tightly assembled with the water inlet end and the water outlet end, when the filtering core material in the filter cylinder needs to be replaced, the operator needs to first remove the external conveying pipelines connected with the water inlet end and the water outlet end as a whole, and then takes out the filter cylinder together with the water inlet end and the water outlet end from the installation position of the filtering device after the pipelines are removed. Subsequently, the sealing structure of the filter cylinder can be opened, the invalid filtering core material can be poured out and new filtering core material can be filled. After the replacement is completed, the filter cylinder needs to be reinstalled back to the original position, and the connection between the water inlet end, the water outlet end and the external pipelines needs to be restored one by one. In the connection process, the sealing performance needs to be ensured to avoid the medium leakage problem.

[0004] The above-mentioned filtering core material replacement operation process is long and complicated. Not only does the operator need to have professional assembly skills, but also a large amount of working hours are consumed. At the same time, the frequent disassembly and installation of the connecting pipelines can easily cause the pipeline interface to be worn and the sealing element to be aged, increasing the risk of medium leakage and further affecting the stability and safety of the filtering system.

[0005] Therefore, a PP cotton filter core and activated carbon composite integrated high-efficiency filtering device is needed. SUMMARY

[0006] The PP cotton filter core and activated carbon composite integrated high-efficiency filtering device solves the problems of long operation process and complicated steps of filter core material replacement in the prior art, requires the operator to have professional assembly skills, consumes a large amount of working hours, frequently dismounts and mounts the connecting pipeline, easily causes pipeline interface wear and aging of sealing elements, increases the risk of medium leakage, and further affects the stability and safety of the filtering system.

[0007] To achieve the above object, the present application provides the following technical scheme:

[0008] A PP cotton filter core and activated carbon composite integrated high-efficiency filtering device, comprising a fixed cylinder, a one-side rotation connection of the fixed cylinder has an opening and closing cover, and the opening and closing cover and the fixed cylinder are rotationally connected through a first rotation shaft;

[0009] A filter cylinder is rotationally connected to one side of the fixed cylinder between the opening and closing cover and the fixed cylinder, and the filter cylinder and the fixed cylinder are rotationally connected through a second rotation shaft, the top and bottom of the filter cylinder are both screw-connected with sealing covers, and the outer side of the sealing cover is connected with a medium flow pipe which is in communication with the inside of the filter cylinder, the inside top end and bottom end of the fixed cylinder are both assembled with a lifting fitting pipe which can be axially displaced to realize the on-off of the medium passage;

[0010] The opening and closing cover can drive the lifting fitting pipe to displace through the gear transmission structure when rotating, so as to release or realize the plug-in fitting of the lifting fitting pipe and the medium flow pipe on the filter cylinder.

[0011] Preferably, the gear transmission structure comprises a first gear fixed on the first rotation shaft, a second gear meshing with the first gear, and a transmission ring fixedly connected with the second gear and sleeved on the outside of the fixed pipe;

[0012] The inside of the transmission ring is provided with a radial limiting groove, the outside of the lifting fitting pipe is fixedly provided with a driving sliding block matched with the radial limiting groove, and the driving sliding block and the radial limiting groove form a radial limiting and axial sliding fitting.

[0013] Preferably, the inner wall of the fixed pipe is provided with a spiral guide groove arranged obliquely, the outer wall of the lifting fitting pipe is fixedly provided with a guide head slidingly connected with the spiral guide groove, and the lifting fitting pipe realizes axial displacement when rotating radially through the cooperation of the guide head and the spiral guide groove.

[0014] Preferably, the top and bottom of the fixed cylinder are both connected with a connecting pipe, the inner end of the connecting pipe is inserted into the inside of the lifting fitting pipe, and the outer end is used for connecting with an external conveying pipeline to form a complete medium conveying flow channel.

[0015] Preferably, sliding connection guide rods are arranged at the four corners of the bottom of the lifting matching pipe, and sliding rings are fixed at the bottom of the four groups of guide rods, and the bottom of the sliding ring and the inner wall of the fixed cylinder are radially rotatable and axially limited.

[0016] Spring is arranged outside the four groups of guide rods, and the top and bottom of the spring are respectively in abutment with the lifting matching pipe and the sliding ring.

[0017] Preferably, a sealing element is arranged at the insertion position of the medium flow pipe on the filter cylinder and the lifting matching pipe to prevent medium leakage.

[0018] The sealing element is a rubber ring, which is fixed outside the medium flow pipe, and a matching groove is arranged in the inner side of the lifting matching pipe for matching the rubber ring.

[0019] Preferably, a protective cover is arranged outside the fixed cylinder for protecting the gear transmission structure, and the protective cover and the fixed cylinder are threadedly connected through a plurality of bolts.

[0020] The locking mechanism comprises a connecting plate, two sets of opening and closing sliding blocks, two sets of locking rods, two sets of fixed cylinders and two sets of springs.

[0021] The connecting plate is fixed on one side of the opening and closing cover, the two sets of opening and closing sliding blocks are symmetrically embedded in the sliding grooves arranged on the outer surface of the connecting plate, one end of the two sets of locking rods is fixedly connected with the two sets of opening and closing sliding blocks, the other end is arranged corresponding to the fixed cylinder on the fixed cylinder of the filter device, and the two sets of springs are sleeved between the two sets of opening and closing sliding blocks.

[0022] Preferably, positioning rings are fixed at the top and bottom of the inner part of the fixed cylinder, and the positioning rings are used for limiting the axial position of the filter cylinder.

[0023] Preferably, a separation net is arranged on the inner wall of the filter cylinder for separating the PP cotton filter core and the activated carbon, and the separation net is detachably connected with the inner wall of the filter cylinder.

[0024] Preferably, hexagonal plates are fixed outside the two sets of sealing covers, and the hexagonal plates are used for clamping tools to drive the sealing cover to rotate relative to the filter cylinder, so as to realize the disassembly and assembly of the sealing cover and the filter cylinder.

[0025] Compared with the prior art, the PP cotton filter core and the activated carbon composite integrated high-efficiency filter device have the following beneficial effects:

[0026] 1. The application adopts a split type flip open and close design of "fixed cylinder - opening and closing cover - filter cylinder", cooperates with the lifting cooperation pipe structure driven by gear transmission, does not need to remove the external conveying pipeline connected with the top and bottom connecting pipes of the fixed cylinder when replacing the filter element, only needs to flip the opening and closing cover and the filter cylinder, and can complete the filter element replacement by disassembling and assembling the sealing cover through the hexagonal plate, greatly shortens the operation process, reduces the requirement for the professional skill of the operator, and reduces the operation and maintenance working hours;

[0027] 2. The application divides the inner wall of the filter cylinder into two chambers through the detachable separation net, can fill the PP cotton filter element and the activated carbon respectively, forms a composite filter structure, the PP cotton filter element can physically intercept the particle impurities such as silt and rust, the activated carbon can absorb trace pollutants such as residual chlorine and peculiar smell, compared with the single material filter element, the impurity removal range is significantly widened, the medium cleanliness is improved, and the filling proportion of the two filtering materials can be adjusted according to different filtering requirements such as domestic drinking water purification and industrial circulating water pretreatment, the adaptation ability of the device to different media and different impurity types is enhanced;

[0028] 3. On the one hand, the sealing structure is formed by the cooperation groove in the inner side of the lifting cooperation pipe and the rubber ring outside the medium flow pipe, the sealing property of the insertion joint of the two is ensured, on the other hand, the connection between the connecting pipe and the external pipeline does not need to be frequently disassembled, the pipeline interface wear and the aging probability of the sealing element are fundamentally reduced, the medium leakage problem caused by the decline of the interface sealing property is avoided, the filter flow channel integrity is ensured, and the long-term stable operation of the system is maintained;

[0029] 4. The application does not need to disassemble the external pipeline and the connecting pipe, reduces the loss of the pipeline interface, the sealing element and other components, prolongs the service life of the non-consumable components such as the fixed cylinder and the connecting pipe, only needs to replace the PP cotton filter element and the activated carbon in the filter cylinder, does not need to replace the whole filter cylinder, reduces the waste of the filter cylinder and other components, shortens the device downtime, reduces the production or purification process interruption loss caused by the system shutdown, and the long-term operation and maintenance cost is significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a use state schematic view of the whole PP cotton filter element and activated carbon composite integrated high-efficiency filter device in the application;

[0031] Figure 2 It is a sectional view enlarged view of the whole PP cotton filter element and activated carbon composite integrated high-efficiency filter device in the application;

[0032] Figure 3 It is a partial structure schematic view of the PP cotton filter element and activated carbon composite integrated high-efficiency filter device in the application;

[0033] Figure 4 It is a partial structure schematic view of the PP cotton filter element and activated carbon composite integrated high-efficiency filter device in the application;

[0034] Figure 5 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0035] Figure 6 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0036] Figure 7 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0037] Figure 8 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0038] Figure 9 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0039] Figure 10 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0040] Figure 11 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0041] Figure 12 It is the sectional enlarged view of the structure of the fixed pipe of the PP cotton filter core and activated carbon composite integrated high-efficiency filter device in the application;

[0042] In the figure: 1, fixed cylinder; 101, fixed pipe; 102, spiral guide groove; 2, opening and closing cover; 201, first rotating shaft; 3, filter cylinder; 301, second rotating shaft; 302, sealing cover; 303, medium flow pipe; 304, hexagonal plate; 4, first gear; 5, second gear; 6, transmission ring; 7, radial limiting groove; 8, lifting matching pipe; 9, driving sliding block; 10, matching groove; 11, spring; 12, guide rod; 13, connecting pipe; 14, guide head; 15, positioning ring; 16, protection cover; 17, sliding ring; 18, connecting plate; 19, opening and closing sliding block; 20, locking rod; 21, fixed cylinder; 22, spring; 23, sliding groove. DETAILED DESCRIPTION

[0043] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0044] Embodiment one

[0045] Please refer to Figures 1-12 The present application provides a technical solution: a PP cotton filter element and activated carbon composite integrated high-efficiency filter device, which aims to solve the problems of complicated filter element replacement and high leakage risk of the existing filter device through structural optimization, and the specific structure and working process are as follows:

[0046] The fixed cylinder 1 is a device base bearing component, and the top and bottom thereof are fixed with positioning rings 15 for limiting the axial position of the filter cylinder 3. The inner top and bottom ends of the fixed cylinder 1 are both equipped with fixed pipes 101, the inner wall of the fixed pipe 101 is provided with a spiral guide groove 102 arranged obliquely, and the inner side is sleeved with a transmission ring 6.

[0047] The outer side of the fixed cylinder 1 is detachably connected with a protective cover 16 through a plurality of bolts, the protective cover 16 wraps the gear transmission structure composed of the first gear 4, the second gear 5 and the transmission ring 6, and plays a protective role of dustproof and anti-collision.

[0048] The top and bottom of the fixed cylinder 1 are also connected with connecting pipes 13, the inner end of the connecting pipe 13 is inserted into the inner part of the lifting cooperation pipe 8, and the outer end is used for connecting with the external conveying pipeline to form a complete medium conveying flow channel, wherein the outer side of the connecting pipe 13 is fixedly connected with the outer surface of the protective cover 16.

[0049] The opening and closing cover 2 is rotatably connected with the fixed cylinder 1 through a first rotating shaft 201, and can be flipped relative to the fixed cylinder 1 to realize the opening and closing of the device. The first rotating shaft 201 is fixedly sleeved with the first gear 4, and the first gear 4 is engaged with the second gear 5 to form a power input end of the gear transmission structure.

[0050] The filter cylinder 3 is rotatably connected with the fixed cylinder 1 through a second rotating shaft 301, and the filter cylinder 3 is located between the opening and closing cover 2 and the fixed cylinder 1. The top and bottom of the filter cylinder 3 are both threadedly connected with sealing covers 302, the outer side of the sealing cover 302 is fixedly connected with a medium flow pipe 303 which is in communication with the inside of the filter cylinder 3, and the outer side of the two sealing covers 302 is also fixedly connected with a hexagonal plate 304 for clamping by a wrench or other tools to drive the sealing cover 302 to rotate relative to the filter cylinder 3, so as to realize the disassembly and assembly of the sealing cover 302 and the filter cylinder 3.

[0051] The inner wall of the filter cartridge 3 is detachably connected with a separation net, which separates the inside of the filter cartridge 3 into two chambers for filling PP cotton filter core and activated carbon respectively, forming a composite filter structure.

[0052] The lifting fitting pipe 8 is assembled in the fixed pipe 101 and can be axially displaced to realize the opening and closing of the medium passage; the driving slider 9 is fixed outside the lifting fitting pipe 8 and is inserted into the radial limiting groove 7 formed in the inner side of the transmission ring 6, and the driving slider 9 and the radial limiting groove 7 form a radial limiting and axial sliding fitting;

[0053] The outer wall of the lifting fitting pipe 8 is fixed with a guide head 14, which is slidingly connected with the helical guide groove 102 in the inner wall of the fixed pipe 101;

[0054] The inner side of the lifting fitting pipe 8 is provided with a fitting groove 10, and the outer side of the medium flow pipe 303 is fixed with a rubber ring which is adapted to the fitting groove 10 to form a sealing structure at the insertion joint of the lifting fitting pipe 8 and the medium flow pipe 303 to prevent leakage of the medium;

[0055] The four corners of the bottom of the lifting fitting pipe 8 are slidingly connected with guide rods 12, and the bottoms of the four groups of guide rods 12 are fixed with a sliding ring 17 which is in radial rotation and axial limiting fitting with the inner wall of the fixed cylinder 1; the outer sides of the four groups of guide rods 12 are each sleeved with a spring 11, the top of which abuts against the lifting fitting pipe 8 and the bottom of which abuts against the sliding ring 17, for assisting the resetting of the lifting fitting pipe 8.

[0056] Gear transmission structure: composed of the first gear 4 fixed on the first rotating shaft 201, the second gear 5 engaged with the first gear 4, and the transmission ring 6 fixedly connected with the second gear 5, for transmitting the turning power of the opening and closing cover 2 to the lifting fitting pipe 8 to drive the axial displacement of the lifting fitting pipe 8.

[0057] Example two

[0058] This embodiment takes the PP cotton filter core and activated carbon composite integrated filter device used in the domestic water purification system of a certain community as the application object. Each device needs to process about 50m 3 Domestic water, in order to ensure the filtering effect, the PP cotton filter core and activated carbon in the internal filter cartridge 3 need to be replaced regularly every month. The core components of the opening and closing cover locking mechanism of the device include two groups of opening and closing sliders 19, two groups of locking rods 20, two groups of springs 22 and two groups of fixed cylinders 21, wherein:

[0059] The connecting plate 18 is fixed on one side of the opening and closing cover 2, and the two groups of opening and closing sliders 19 are symmetrically embedded in the sliding grooves 23 on the outer surface of the connecting plate 18; the top of the opening and closing slider 19 is provided with anti-skid convex patterns to facilitate the staff to exert force with hands;

[0060] Two groups of locking rods 20 are fixedly connected with the opening and closing sliding blocks 19 at one end, and are inserted into the fixed cylinders 21 corresponding to the fixed cylinders 1 at the other end in the normal state, so as to realize the locking of the opening and closing cover 2 and the fixed cylinder 1.

[0061] Two groups of springs 22 are respectively sleeved between the two groups of opening and closing sliding blocks 19, and the spring 22 is in a natural stretching state in the normal state, and the locking rod 20 is pushed to keep the embedding with the fixed cylinder 21 through the elastic force.

[0062] Specific operation implementation steps

[0063] When the staff needs to open the opening and closing cover 2 for filter replacement, only one operator is needed to complete the whole process independently, without carrying wrenches, screwdrivers and other auxiliary tools, and the specific steps are as follows:

[0064] Step one: opening and closing sliding block 19 and exerting force

[0065] The operator stands in front of the filter device, holds the two groups of opening and closing sliding blocks 19 on the outer surface of the opening and closing cover 2 with both hands (the anti-skid convex pattern can increase the friction between the hands and the sliding blocks to avoid slipping when exerting force), and simultaneously exerts pressing force towards the center of the opening and closing cover 2 according to the "unlocking direction" mark (an arrow pointing inward is printed beside the opening and closing sliding block 19), at this time the operator exerts a pressing force of about 30-40N, which can be pushed by the conventional hand strength without the need for additional external force tools.

[0066] Step two: driving the locking rod 20 to realize the contraction movement

[0067] With the movement of the two groups of opening and closing sliding blocks 19 towards the center, the two groups of locking rods 20 fixedly connected with the opening and closing sliding blocks 19 are synchronously pulled to make contraction movement along the vertical direction to the inside of the opening and closing cover 2, since the locking rod 20 is fixedly connected with the opening and closing sliding block 19, the movement track of the opening and closing sliding block 19 can be accurately transmitted to the locking rod 20, so that the two groups of locking rods 20 always keep symmetrical contraction, avoiding the locking rod 20 being stuck in the fixed cylinder 21 due to unilateral movement.

[0068] Working principle: when in use, first make the opening and closing cover 2 open to one side relative to the fixed cylinder 1 through the first rotating shaft 201, when the opening and closing cover 2 is opened, then manually open the sealing cover 302 threadedly connected to the top and bottom of the filter cylinder 3 relative to the fixed cylinder 1 to the other side through the second rotating shaft 301, then the operator can open the sealing cover 302, and then the filter material in the filter cylinder 3 can be replaced;

[0069] Specifically, when the sealing cover 302 is opened or closed, the operator can use a wrench or the like to separate and connect the sealing cover 302 and the filter cylinder 3 through the hex plate 304;

[0070] The filter cartridge 3 can be filled with PP cotton core and activated carbon and the like filtering materials, and the PP cotton core and the activated carbon can be filled in layers to further improve the filtering effect of the medium.

[0071] As known above, the traditional filter cartridge and the water inlet end and the water outlet end are broken and the integrated or tightly assembled structure is broken, and a split type flip opening and closing design of "fixed cylinder 1 - opening and closing cover 2 - filter cartridge 3" is innovatively adopted. The fixed cylinder 1 is used as a device base bearing part, the opening and closing cover 2 is connected through the first rotating shaft 201, and the filter cartridge 3 is connected through the second rotating shaft 301. Without disassembling the external connecting pipeline, the inside space of the filter cartridge 3 can be directly exposed by only flipping the opening and closing cover 2 and the filter cartridge 3 in turn.

[0072] The inside of the filter cartridge 3 supports the layered filling of the PP cotton filter core and the activated carbon, and the two filtering materials form a complementary composite filtering structure. The PP cotton can efficiently filter the particulate impurities such as silt, rust and suspended matter in the medium to be filtered through the physical interception effect. The activated carbon can adsorb the trace pollutants such as residual chlorine, odor and organic matter in the water by virtue of the porous adsorption characteristics. Compared with a single material filter core, the impurity removal range is significantly widened and the medium cleanliness is improved.

[0073] The layered filling design has flexible adjustment space. The filling ratio or layer number of the PP cotton and the activated carbon can be adjusted according to the filtering requirements of different application scenarios (such as domestic drinking water purification and industrial circulating water pretreatment), so that the adaptation ability of the device to different media and different impurity types is enhanced, and the whole set of filtering parts does not need to be replaced.

[0074] The connection structure of the water inlet end, the water outlet end and the external pipeline does not need to be frequently disassembled, which fundamentally reduces the probability of wear and tear of the pipeline interface, avoids the medium leakage problem caused by the decline of the interface sealing performance, guarantees the sealing and integrity of the filtering flow channel, and maintains the stable operation of the system.

[0075] The simplified replacement process reduces the professional skill requirement of the operating personnel, reduces the equipment failure risk caused by improper operation, shortens the working hours of single replacement operation, reduces the downtime of the filtering device, and reduces the production or purification process interruption loss caused by system shutdown;

[0076] Further, when the opening and closing cover 2 is opened through the first rotating shaft 201, the first rotating shaft 201 drives the first gear 4 to rotate, the first gear 4 drives the second gear 5 to rotate, and the second gear 5 drives the transmission ring 6 to rotate.

[0077] When the transmission ring 6 rotates, the multiple groups of radial limiting grooves 7 formed in the inner side of the transmission ring 6 drive the driving sliding block 9 and the lifting cooperation pipe 8 to rotate. The radial limiting grooves 7 and the driving sliding block 9 are connected in a radial limiting and axial sliding manner.

[0078] When the lifting and fitting pipe 8 rotates radially, the guide head 14 fixed on one side of the outer wall of the lifting and fitting pipe 8 is in sliding connection with the spiral guide groove 102 formed in the inner wall of the fixed pipe 101, and the spiral guide groove 102 is inclined, that is, the lifting and fitting pipe 8 rotates radially and also moves axially to a certain extent under the action of the guide head 14;

[0079] As can be seen from the above, when the opening and closing cover 2 is turned open, the two groups of lifting and fitting pipes 8 will move axially away from the medium flow pipe 303, that is, the connection between the filter cartridge 3 and the fixed cylinder 1 is released, and the filter cartridge 3 can be turned open along the second rotating shaft 301;

[0080] When the filter material is replaced, the filter cartridge 3 is first turned to the inside of the fixed cylinder 1, and then the opening and closing cover 2 is turned closed, and at the same time, the two groups of lifting and fitting pipes 8 move axially in the opposite direction, so that the two groups of lifting and fitting pipes 8 and the medium flow pipe 303 of the filter cartridge 3 are inserted with each other, and the communication of the filter channel is completed;

[0081] The fixed cylinder 1 is connected with the connecting pipe 13 at the top and the bottom, the inner end of the connecting pipe 13 is inserted into the inside of the lifting and fitting pipe 8, and the other end is connected with the external pipeline, so that the external medium can enter the inside of the filter cartridge 3, and the filtered medium is discharged from the other connecting pipe 13, and the filtering effect is completed;

[0082] Further, the staff can drive the two groups of locking rods 20 to shrink through the two groups of opening and closing sliders 19, at this time, the two groups of springs 22 are compressed, so that the two groups of locking rods 20 are separated from the two groups of fixed cylinders 21, so that the opening and closing cover 2 and the fixed cylinder 1 are separated from each other;

[0083] The whole operation process is completed through the coherent mechanical action of "controlling the opening and closing slider 19-driving the locking rod 20-compressing the spring 22-releasing the lock", without the need for complex auxiliary tools or multi-step cooperative operation, the staff only needs to exert force on the opening and closing slider 19, the operation process is simple, which can effectively shorten the separation time of the opening and closing cover 2 and improve the equipment operation efficiency.

[0084] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PP cotton filter element and activated carbon composite integrated high-efficiency filter device, comprising a fixed cylinder (1), characterized in that: The fixed cylinder (1) is rotatably connected with an opening and closing cover (2), and the opening and closing cover (2) and the fixed cylinder (1) are rotatably connected through a first rotating shaft (201); The fixed cylinder (1) is rotatably connected with a filter cylinder (3) between the opening and closing cover (2) and the fixed cylinder (1), and the filter cylinder (3) and the fixed cylinder (1) are rotatably connected through a second rotating shaft (301), the top and bottom of the filter cylinder (3) are threadedly connected with sealing covers (302), and the outer side of the sealing cover (302) is connected with a medium flow pipe (303) which is in communication with the inside of the filter cylinder (3), and the inside of the fixed cylinder (1) is equipped with lifting matching pipes (8) which can be axially displaced to realize the opening and closing of the medium channel at the top and bottom ends; When the opening and closing cover (2) rotates, the lifting matching pipes (8) can be driven to displace through the gear transmission structure to realize the plug-in cooperation of the lifting matching pipes (8) with the medium flow pipe (303) on the filter cylinder (3).

2. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The gear transmission structure comprises a first gear (4) fixed on the first rotating shaft (201), a second gear (5) engaged with the first gear (4), and a transmission ring (6) fixedly connected with the second gear (5) and sleeved on the outside of the fixed pipe (101); The inside of the transmission ring (6) is provided with a radial limiting groove (7), the outside of the lifting matching pipe (8) is fixedly provided with a driving sliding block (9) matched with the radial limiting groove (7), and the driving sliding block (9) and the radial limiting groove (7) form a radial limiting and axial sliding cooperation.

3. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The inner wall of the fixed pipe (101) is provided with a spiral guide groove (102) arranged obliquely, the outer wall of the lifting matching pipe (8) is fixedly provided with a guide head (14) slidably connected with the spiral guide groove (102), and the lifting matching pipe (8) is axially displaced through the cooperation of the guide head (14) and the spiral guide groove (102) when the transmission ring (6) rotates radially.

4. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The top and bottom of the fixed cylinder (1) are connected with connecting pipes (13), the inner end of the connecting pipe (13) is inserted into the inside of the lifting matching pipe (8), and the outer end is used for connecting with the outside conveying pipeline to form a complete medium conveying flow channel.

5. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The bottom of the lifting matching pipe (8) is slidably connected with guide rods (12) at four corners, and the bottoms of the four groups of guide rods (12) are fixedly provided with a sliding ring (17), and the bottom of the sliding ring (17) and the inner wall of the fixed cylinder (1) are radially rotatable and axially limited; The outside of the four groups of guide rods (12) is provided with springs (11), and the top and bottom of the spring (11) abut against each other with the lifting matching pipe (8) and the sliding ring (17) respectively.

6. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The plug-in part of the medium flow pipe (303) on the filter cylinder (3) and the lifting matching pipe (8) is provided with a sealing element to prevent leakage of the medium; The sealing element is a rubber ring, which is fixed on the outside of the medium flow pipe (303), and the inside of the lifting matching pipe (8) is provided with a matching groove (10) matched with the rubber ring.

7. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The outside of the fixed cylinder (1) is provided with a protective cover (16) for protecting the gear transmission structure, and the protective cover (16) and the fixed cylinder (1) are threadedly connected through a plurality of bolts. The opening and closing cover (2) is connected with a locking mechanism on one side, which comprises a connecting plate (18), two sets of opening and closing sliding blocks (19), two sets of locking rods (20), two sets of fixing cylinders (21) and two sets of springs (22); The connecting plate (18) is fixed on one side of the opening and closing cover (2), the two sets of opening and closing sliding blocks (19) are symmetrically embedded in the sliding grooves (23) opened on the outer surface of the connecting plate (18), the two sets of locking rods (20) are fixedly connected with the two sets of opening and closing sliding blocks (19) at one end and are provided with the fixing cylinders (21) on the filter device fixing cylinder (1) at the other end, and the two sets of springs (22) are sleeved between the two sets of opening and closing sliding blocks (19).

8. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The top end and the bottom end of the inside of the fixing cylinder (1) are fixed with positioning rings (15), and the positioning rings (15) are used to limit the axial position of the filter cylinder (3).

9. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The inner wall of the filter cylinder (3) is provided with a separation net for separating the PP cotton filter core and the activated carbon, and the separation net is detachably connected with the inner wall of the filter cylinder (3).

10. The PP cotton filter core and activated carbon composite integrated high-efficiency filter device according to claim 1, characterized in that: The outer side of the two sets of sealing covers (302) is fixed with hexagonal plates (304), the hexagonal plates (304) are used for clamping tools to drive the sealing covers (302) to rotate relative to the filter cylinder (3), so as to realize the disassembly and assembly of the sealing covers (302) and the filter cylinder (3).

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