CN214319307U - Tubular filter - Google Patents

Abstract

The utility model discloses a tubular filter, including barrel, filter screen and cover. The filter screen extends along the length direction of the cylinder body and is positioned in the cylinder body, and the filter screen encloses to form a filtering space. The rod piece extends along the length direction of the barrel and is arranged in the filtering space, the rod piece is provided with a tip part along the self circumference, and the tip part is used for being abutted to the filter screen. The cover is connected with one end of the filter screen, the cover is connected with the cylinder body in a covering mode, the rotary mechanism is arranged on the cover and fixedly connected with the rod piece, and the rod piece is used for rotating relative to the filter screen under the action of the rotary mechanism so that the tip portion scrapes attachments on the filter screen, the filter screen can be conveniently and quickly cleaned during operation of the tubular filter, the shutdown cleaning is not needed, and meanwhile the filtering effect of the filter screen can be improved. Furthermore, the mode of this embodiment simple structure and little to tubular filter's structural change are convenient for upgrade the transformation to current tubular filter.

Description

Tubular filter

Technical Field

The utility model relates to a tubular filter technical field especially relates to a tubular filter.

Background

When the tubular filter is used for filtering, as the filter cylinder is still in the working process, filtered large-particle impurities can be quickly blocked on the filter screen, so that the filtering speed and the filtering effect are reduced. At present, the filter screen in work is cleaned by additionally arranging a cleaning brush capable of rotating and scraping the filter screen in the filter cylinder in the industry, however, the structural modification of the tubular filter is large.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses tubular filter is favorable to realizing cleaning the filter screen at the in-process of barrel work through simple structure.

In order to achieve the above object, the present invention discloses a filter cartridge convenient to clean, including:

a barrel;

the filter screen extends along the length direction of the cylinder body and is positioned in the cylinder body, and the filter screen surrounds to form a filtering space;

the rod piece extends along the length direction of the barrel body and is arranged in the filtering space, the rod piece is provided with a tip part along the circumference direction of the rod piece, and the tip part is used for being abutted against the filter screen;

the cylinder cover, the cylinder cover with the one end of filter screen is connected, just the cylinder cover lid close connect in the barrel is in order to seal the barrel, be equipped with rotary mechanism on the cylinder cover, rotary mechanism with member fixed connection, the member be used for rotary mechanism's effect is relative the filter screen rotates, so that the point portion strikes off attachment on the filter screen.

As an alternative embodiment, at least one end of the rod may be rotatably engaged with at least one end of the filter screen.

As an optional implementation mode, the both ends of filter screen are equipped with the draw-in groove, the both ends of member rotatable block respectively in the draw-in groove, perhaps, the both ends of filter screen are equipped with the card protrudingly, the draw-in groove has been seted up respectively at the both ends of member, the rotatable block of protruding block of card in the draw-in groove.

As an optional implementation manner, the rod includes a first rod, a second rod, and a third rod, the first rod and the third rod are symmetrically disposed with respect to a center of the filtering space, and both the first rod and the third rod have the tip portion;

the second rod body is connected between the first rod body and the third rod body, the second rod body is close to the cylinder cover, the second rod body is connected with the rotating mechanism, and the second rod body is used for driving the first rod body and the third rod body to rotate under the action of the rotating mechanism.

As an alternative embodiment, the rod member comprises a first face, a second face and a third face, the second face being connected between the first face and the third face, the second face being adapted to fit against an inner surface of the filter screen;

the tip includes two, the junction of first face with the second face forms one of them tip, the junction of third face with the second face forms another the tip.

As an optional embodiment, the filter screen is a cylindrical filter screen, a first included angle θ 1 is formed between the first surface and a tangent plane of the first filter screen, and θ 1 is greater than or equal to 90 ° and less than or equal to 160 °;

a second included angle theta 2 is formed between the third surface and the tangent plane of the second filter screen, and theta 2 is more than or equal to 90 degrees and less than or equal to 160 degrees;

wherein, first filter screen tangent plane be with one of them filter screen surface's tangent plane of tip butt, second filter screen tangent plane be with another filter screen surface's tangent plane of tip butt.

As an alternative embodiment, the first face is connected with the third face, a third included angle θ 3 is formed between the first face and the third face, the third included angle θ 3 is disposed toward the center of the filter screen, and θ 3 is greater than or equal to 60 ° and less than or equal to 135 °.

As an alternative embodiment, the rotating mechanism includes a transmission structure and a rotating structure, one end of the transmission structure is connected to the rod, and the other end of the transmission structure is connected to the rotating structure, and the transmission structure is configured to transmit the rotating power of the rotating structure to the rod.

As an alternative embodiment, the rotating structure comprises a rotating handle.

As an alternative embodiment, the cylinder comprises a main cylinder part and an auxiliary cylinder part, the filter screen is positioned in the main cylinder part, one end of the auxiliary cylinder part is connected to the pipe wall of the main cylinder part, and the inside of the auxiliary cylinder part is communicated with the inside of the main cylinder part;

the main cylinder part is provided with a feed inlet and a loading and unloading port, the feed inlet and the loading and unloading port are respectively positioned at two opposite ends of the main cylinder part, and the cylinder cover is covered and connected with the loading and unloading port to seal the loading and unloading port;

the auxiliary cylinder body part deviates from one end of the main cylinder body part is provided with a discharge hole, and the discharge hole is used for discharging materials filtered by the filter screen.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides a tubular filter sets up the member through enclosing the filtration space that closes formation at the filter screen to make the member have the point portion that is used for the butt filter screen, increase rotary mechanism simultaneously on the cover, utilize rotary mechanism to drive the member and rotate, thereby the member is rotating its point portion in-process and can with the different position butts of the internal face of filter screen, and then make point portion can strike off the attachment on the filter screen, make the impurity of jam on the filter screen break away from with the filter screen. By adopting the mode of the embodiment, the filter screen can be conveniently and quickly cleaned during the operation of the tubular filter, and the filter effect of the filter screen can be improved without stopping the machine for cleaning. In addition, the mode of this embodiment simple structure, it is little to tubular filter's structural change, is convenient for upgrade the transformation to current tubular filter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a candle filter according to an embodiment of the present invention;

FIG. 2 is an internal cross-sectional view of a candle filter according to an embodiment of the present invention;

fig. 3 is a schematic structural section view of a rod and a filter screen according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 2;

fig. 5 is a schematic view of a fastening connection structure of a rod and a filter screen according to an embodiment of the present invention;

fig. 6 is a schematic view of another fastening structure of the rod and the filter net according to the embodiment of the present invention;

fig. 7 is a schematic structural section view of another rod and filter net according to an embodiment of the present invention.

Icon: 1. a tube filter; 10. a barrel; 100. a main cylinder portion; 100a, a feed inlet; 100b, a loading and unloading port; 101. a sub-cylinder portion; 101a and a discharge hole; 11. a cylinder cover; 110. a rotation mechanism; 110a, a transmission structure; 110b, a rotating structure; 111. a first seal member; 112. a second seal member; 12. filtering with a screen; 120. filtering the space; 121. a third seal member; 122. a connecting member; 13. a rod member; 130. a tip portion; 131. a first rod body; 132. a second rod body; 133. a third rod body; 13a, a first face; 13b, a second face; 13c, a third surface; 13d, cutting a first filter screen; 13e, second screen section.

Detailed Description

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

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Please refer to fig. 1 to fig. 3 together, fig. 1 is a schematic structural diagram of a tube filter 1 according to an embodiment of the present invention, fig. 2 is a sectional view of the tube filter 1 according to an embodiment of the present invention, and fig. 3 is a schematic structural sectional diagram of a rod and a filter net according to an embodiment of the present invention. The embodiment of the utility model discloses tube filter 1, including barrel 10, filter screen 12 and cover 11. The filter screen 12 extends along the length direction of the cylinder 10 and is positioned in the cylinder 10, and the filter screen 12 encloses to form a filtering space 120. The rod 13 extends along the length direction of the cylinder 10 and is disposed in the filtering space 120, and the rod 13 has a tip 130 along its own circumference, and the tip 130 is used for abutting against the filter screen 12. The cover 11 is connected to one end of the filter screen 12, the cover 11 is covered and connected to the cylinder 10 to seal the cylinder 10, the cover 11 is provided with a rotating mechanism 110, the rotating mechanism 110 is fixedly connected to the rod 13, and the rod 13 is used for rotating relative to the filter screen 12 under the action of the rotating mechanism 110, so that the tip 130 scrapes off attachments on the filter screen 12.

When using the disclosed tubular filter 1 of this embodiment, only need to make rotary mechanism 110 produce rotary motion, can drive the member 13 through rotary mechanism 110 and take place to rotate, thereby make member 13 rotate the in-process, its point portion 130 can with the different positions butt of the internal face of filter screen 12, and then, make point portion 130 can strike off the attachment on the filter screen 12, make the impurity of jam on the filter screen 12 break away from with filter screen 12, thereby can be convenient, swiftly clean filter screen 12 at tubular filter 1 during operation, it is clean also can improve the filter effect of filter screen 12 simultaneously to need not to shut down.

In addition, in the mode of this embodiment, by modifying the support rod in the tube filter 1 in the related art into the rod 13 capable of rotating in the filtering space 120, the rod 13 can keep the support function of the filter screen 12, and at the same time, the rod 13 can enable the tip portion 130 to scrape off impurities on the filter screen 12 during the rotating motion process, so as to realize the cleaning function of the rod 13 on the filter screen 12. Therefore, the mode of the embodiment has a simple structure, the structural change of the tubular filter 1 is small, and the upgrading and the transformation of the existing tubular filter 1 are facilitated.

In some embodiments, the cartridge 10 may include a main cartridge portion 100 and a sub cartridge portion 101, the filter 12 being located in the main cartridge portion 100, one end of the sub cartridge portion 101 being connected to a pipe wall of the main cartridge portion 100, an interior of the sub cartridge portion 101 communicating with an interior of the main cartridge portion 100. Specifically, the main cylinder 100 is provided with a feed inlet 100a and a loading/unloading port 100b, the feed inlet 100a and the loading/unloading port 100b are respectively provided at opposite ends of the main cylinder 100, and a cap 11 is coupled to the loading/unloading port 100b to seal the loading/unloading port 100 b. One end of the auxiliary cylinder part 101, which is away from the main cylinder part 100, is provided with a discharge port 101a, and the discharge port 101a is used for discharging the material filtered by the filter screen 12. The cylinder 10 is provided with the main cylinder part 100 and the auxiliary cylinder part 101 which are communicated with each other, so that the cylinder 10 can be provided with three ports, fluid can flow into the main cylinder part 100 through the feed inlet 100a for filtration, the filtered fluid is discharged out of the cylinder 10 through the discharge outlet 101a, and the filter screen 12 can enter the main cylinder part 100 from the loading and unloading port 100b, so that the functions of the ports of the tubular filter 1 are clearly divided, and the layout is reasonable.

Preferably, the projection of the filter screen 12 on the inner wall of the main cylinder part 100 along the length direction thereof covers the joint of the auxiliary cylinder part 101 and the main cylinder part 100, in other words, the filter screen 12 may be disposed on the main cylinder part 100 and extend along the length direction of the main cylinder part 100, and the extension length of the filter screen 12 in the main cylinder part 100 is greater than the length from the end of the main cylinder part 100 provided with the loading and unloading port 100b to the joint of the auxiliary cylinder part 101 and the main cylinder part 100, so that the fluid flowing out of the discharge port 101a of the auxiliary cylinder part 101 is ensured to be the fluid filtered by the filter screen 12, and the filtering effect of the tubular filter 1 is ensured.

Optionally, the secondary barrel portion 101 may be fixedly connected to the wall of the main barrel portion 100 by welding, gluing, screwing or other sealable methods, so that on one hand, the secondary barrel portion 101 and the main barrel portion 100 can be firmly connected, and on the other hand, the sealing performance of the structure of the barrel 10 can be ensured, and fluid is prevented from flowing from the joint of the secondary barrel portion 101 and the main barrel portion 100 to the outside of the barrel 10.

Alternatively, the material of the main cylinder portion 100 and the sub-cylinder portion 101 may be a cylindrical object made of a material with certain hardness, such as metal, plastic, etc., which is waterproof and antirust, and is beneficial to make the service life of the cylinder 10 longer.

Alternatively, the main cylinder portion 100 and the sub cylinder portion 101 may be both cylinders, square cylinders, or other cylindrical objects, and the cylinder diameters of the main cylinder portion 100 and the sub cylinder portion 101 may be the same or different. It is to be understood that the present embodiment is not particularly limited as to the shapes of the main cylinder portion 100 and the sub cylinder portion 101 as long as the main cylinder portion 100 and the sub cylinder portion 101 can be used to form the cylinder 10 having three ports.

The present embodiment is described by taking a circular tube in which the main cylinder portion 100 and the sub cylinder portion 101 are both made of stainless steel as an example.

As shown in fig. 4, in some embodiments, in order to enable the cover 11 to seal the loading and unloading opening 100b when being mounted on the loading and unloading opening 100b and to facilitate the mounting and dismounting of the cover 11, the cover 11 can be detachably connected to the loading and unloading opening 100b through a screw structure, and at the same time, the cover 11 can have a first sealing member 111 thereon to improve the sealing effect of the cover 11 on the loading and unloading opening 100 b.

Specifically, the first sealing member 111 may be a sealing ring made of rubber, silicon, or the like, and the first sealing member 111 is disposed at a joint between the cylinder cover 11 and the detachable port 100b in an interference fit manner, so that the first sealing member 111 can achieve a function of sealing the detachable port 100b with the cylinder cover 11.

Alternatively, the cover 11 may be circular, polygonal, or other shape that matches the shape of the loading/unloading opening 100 b. The shape of the lid 11 is not particularly limited as long as the lid 11 can seal the opening 100b when attached to the opening 100 b.

In some embodiments, a rotation mechanism 110 may be disposed on the cover 11, so that the rotation mechanism 110 rotates the rod 13. Specifically, the rotating mechanism 110 may include a transmission structure 110a and a rotating structure 110b, one end of the transmission structure 110a is connected to the rod 13, the other end of the transmission structure 110a is connected to the rotating structure 110b, and the transmission structure 110a is configured to transmit the rotating power of the rotating structure 110b to the rod 13, so as to facilitate the rotating motion generated by the rotating structure 110b, and then the transmission structure 110a drives the rod 13 to rotate under the rotating power of the rotating structure 110 b.

Alternatively, the rotation structure 110b may be located at the outside of the cylinder 10, one end of the transmission structure 110a may extend toward the outside of the cylinder 10 to be connected with the rotation structure 110b, and the other end of the transmission structure 110a may extend from the cylinder cover 11 to the inside of the filtering space 120 to be connected with the rod 13.

Alternatively, the rotating structure 110b may include a rotating handle, which facilitates the rotation movement by manual control of the rotating handle, and facilitates the operation of the operator. It is understood that in other embodiments, the rotating structure 110b may also include a rotating motor, which is advantageous to automatically rotate the rotating structure 110b, so that the rod 13 can automatically perform scraping cleaning of impurities on the filter screen 12.

In some embodiments, the transmission structure 110a may be at least partially connected to the cover 11, which facilitates the position between the transmission structure 110a and the cover 11 to be fixed.

Alternatively, the transmission structure 110a may be a transmission shaft, which may be connected to the cover 11 through a bearing, so as to reduce the friction force generated between the transmission structure 110a and the cover 11 when the transmission structure 110a performs a rotational motion, thereby facilitating an operator to rotate the rotation structure 110b, and saving more labor in operation.

Optionally, a second sealing member 112 may be further provided between the outer periphery of the transmission structure 110a and the cap 11 to prevent the fluid in the filtering space 120 from flowing to the outside of the cylinder 10 through the gap at the connection between the transmission structure 110a and the cap 11.

Alternatively, the second sealing member 112 may be a sealing ring made of rubber, silicone, plastic, or the like. Specifically, the second sealing element 112 may include a sealing ring made of rubber, and one of the second sealing elements 112 is disposed between the transmission structure 110a and the cover 11 in an interference fit manner, or the second sealing element 112 may include two sealing rings made of rubber, where one of the second sealing elements 112 is disposed between the transmission structure 110a and the bearing in an interference fit manner, and the other second sealing element 112 is disposed between the bearing and the cover 11 in an interference fit manner, so as to implement a sealing function of the second sealing element 112 on a connection portion of the transmission structure 110a and the cover 11.

Optionally, the rotation center axis of the transmission structure 110a coincides with the center axis of the filter screen 12, so as to drive the rod 13 to rotate relative to the center axis of the filter screen 12, and further to enable the tip portion 130 to be always kept in a state of abutting against the position of the filter screen 12 in the process of rotating the rod 13, which is beneficial to enabling the tip portion 130 to scrape off impurities on the filter screen 12 more thoroughly.

In some embodiments, one end of the filter screen 12 may be fixedly connected to one side of the cover 11 facing the filtering space 120 by welding, gluing, clamping, or screwing, so as to facilitate the simultaneous assembly and disassembly of the filter screen 12 while the cover 11 is assembled and disassembled.

In some embodiments, the filter screen 12 may be a cylindrical structure formed by bending and enclosing a filter plate made of a material having a certain hardness, such as metal or plastic, and the filter screen 12 of the cylindrical structure encloses the filter space 120, so that the fluid flowing into the filter space 120 can be filtered.

Alternatively, the two abutting sides of the filter plate after being bent can be fixedly connected by welding, gluing or other means, so that the cylindrical shape formed by the filter screen 12 is stable.

Optionally, the filter screen 12 may be cylindrical, so that when the rod 13 is driven by the rotating mechanism 110 to perform a rotating motion, the tip 130 can always keep a state of abutting against the filter screen 12, thereby improving a scraping and cleaning effect of the tip 130 on impurities on the filter screen 12.

In some embodiments, the tube filter 1 may further include a third sealing member 121, the third sealing member 121 is disposed between one end of the filter screen 12 away from the cover 11 and the inner wall of the main cylinder portion 100, and the third sealing member 121 is configured to close a gap between one end of the filter screen 12 away from the cover 11 and the inner wall of the main cylinder portion 100, so that the fluid to be filtered does not directly flow from the gap between the filter screen 12 and the inner wall of the main cylinder portion 100 to the inside of the auxiliary cylinder portion 101, so that the fluid can be more sufficiently filtered, and the filtering effect of the tube filter 1 can be improved.

Alternatively, the third sealing member 121 may be a sealing ring made of rubber, silicon, or the like, and the third sealing member 121 is disposed between the end of the filter screen 12 away from the cover 11 and the inner wall of the main cylinder portion 100 in an interference fit manner, so that the gap between the end of the filter screen 12 away from the cover 11 and the inner wall of the main cylinder portion 100 is sealed by the third sealing member 121.

In order to stabilize the position of the third sealing member 121 on the filter screen 12, optionally, a mounting groove for the third sealing member 121 may be formed on the outer circumferential surface of the filter screen 12, and at least a portion of the third sealing member 121 is engaged in the mounting groove.

Referring to fig. 5 and 6, in some embodiments, at least one end of the rod 13 is rotatably engaged with at least one end of the filter 12, so that when the rod 13 is rotated, at least one end of the rod 13 is always engaged with at least one end of the filter 12. Set up like this and make the member 13 can provide holding power for filter screen 12 through at least one end of member 13 on the one hand to realize the support function of member 13 to filter screen 12, on the other hand make the relative position of member 13 and filter screen 12 more fixed, thereby make sharp portion 130 on the member 13 be liable to keep in the state of butt in filter screen 12, and then guarantee that member 13 when rotating, the effect of scraping off of point portion 130 to the adnexed impurity on the filter screen 12.

In order to better enable the rod 13 to rotate relative to the screen 12 and support the screen 12, both ends of the rod 13 may be rotatably engaged with both ends of the screen 12. Optionally, the end of the rod 13 and the end of the filter screen 12 may be rotatably engaged by a locking groove and a locking protrusion, so that the rod 13 can rotate relative to the filter screen 12, and cannot be separated from the filter screen 12 during rotation.

Specifically, the two ends of the filter screen 12 may be fixedly connected with the connecting member 122 by welding, thread structure, gluing or other methods, and the two ends of the rod 13 may be rotatably engaged with the connecting member 122.

Furthermore, a clamping groove can be formed in the connecting member 122, the two ends of the rod 13 can be rotatably clamped in the clamping groove, or a clamping protrusion can be arranged on the connecting member 122, the two ends of the rod 13 are respectively provided with a clamping groove, and the clamping protrusion can be rotatably clamped in the clamping groove.

Alternatively, the locking protrusion may be spherical or cylindrical, and the locking groove may be a circular locking groove, so as to facilitate the rotation of the rod 13 relative to the filter screen.

It can be understood that the connecting member 122 located at the end of the filter screen 12 close to the inlet 100a may be further provided with the mounting groove of the second sealing member 121, so as to make the structure of the tube filter 1 more compact.

In order to facilitate the rod 13 to rotate relative to the filter 12 under the driving of the rotating mechanism 110 so that the tip portion 130 can scrape off the attachments on the filter 12, the rod 13 may include a first rod 131, a second rod 132 and a third rod 133, the first rod 131 and the third rod 133 may be symmetrically disposed relative to the center of the filtering space 120, and both the first rod 131 and the third rod 133 may have the tip portion 130. The second rod 132 can be connected between the first rod 131 and the third rod 133, the second rod 132 is disposed adjacent to the cover 11, the second rod 132 is connected to the rotating mechanism 110, and the second rod 132 is used for driving the first rod 131 and the third rod 133 to rotate under the action of the rotating mechanism 110, so that the rotating mechanism 110 can drive the rod 13 to integrally rotate through the second rod 132. Specifically, the first rod 131 and the third rod 133 may extend along the length direction of the filter screen 12, and the tip portions 130 of the first rod 131 and the third rod 133 may abut against the filter screen 12, so that when the rod 13 rotates, the first rod 131 and the third rod 133 may scrape off impurities on the surface of the filter screen 12 through the tip portions 130 of the first rod 131 and the third rod 133, which is beneficial to improving the cleaning efficiency of the rod 13 on the surface of the filter screen 12.

It is understood that, in other embodiments, the rod 13 may not adopt the above-mentioned structure, and the rod 13 may only have the above-mentioned first rod 131, in which case, the rod 13 may be provided as one or a plurality of rods spaced along the circumference of the filter screen 12.

In some embodiments, the ends of the first rod 131 and the third rod 133 away from the second rod 132 may be rotatably fastened to the filter 12, so that when the first rod 131 and the third rod 133 rotate, the first rod 131 and the third rod 133 are always fastened to the filter 12, and the first rod 131 and the third rod 133 can rotate and provide a certain supporting effect to the filter 12.

Referring to fig. 2 and fig. 3 again, fig. 2 is an internal cross-sectional view of a tubular filter 1 according to an embodiment of the present invention, and fig. 3 is a schematic structural cross-sectional view of a rod and a filter net according to an embodiment of the present invention. In an alternative embodiment, the rod 13 may comprise a first face 13a, a second face 13b and a third face 13c, the second face 13b being connected between the first face 13a and the third face 13c, the second face 13b being adapted to engage the inner surface of the filter mesh 12, the tip 130 comprising two, the junction of the first face 13a and the second face 13b forming one of the tips 130, and the junction of the third face 13c and the second face 13b forming the other tip 130. By forming two tips 130, it is advantageous that one of the tips 130 abuts against the screen 12 at an optimal angular position when the rod 13 is rotated in either direction, so as to improve the scraping effect of the tips 130 on the impurities on the screen 12.

Specifically, as can be seen from the foregoing, the rod 13 includes a first rod 131, a second rod 132 and a third rod 133, and the first rod 131 and the third rod 133 have the tip portion 130. Taking the first rod 131 and the third rod 133 as the rod 13 with the same structure as the first rod 131 and the third rod 133 for example, the first rod 131 and the third rod 133 may each include a first surface 13a, a second surface 13b and a third surface 13c, the second surface 13b is connected between the first surface 13a and the third surface 13c, and the second surface 13b is used for adhering to the inner surface of the filter 12. Considering that the first rod 131 and the third rod 133 have the same structure, the first rod 131 is taken as an example for detailed description, and then one of the tips 130 is formed at the junction of the first surface 13a and the second surface 13b of the first rod 131, and the other tip 130 is formed at the junction of the third surface 13c and the second surface 13 b. By forming two tips 130 on the first rod 131, it is beneficial for the tips 130 on the first rod 13 to abut against the filter 12 when the rod 13 rotates in any direction, so as to effectively scrape off the attachments on the filter 12.

Alternatively, the second face 13b can be tightly attached to the inner surface of the filter screen 12, so that the fluid is not easy to flow into the space between the second face 13b and the inner surface of the filter screen 12, and therefore, no impurities which are not easy to be scraped by the tip 130 are generated between the second face 13b and the inner surface of the filter screen 12, which is beneficial to improving the cleaning effect of the rod 13 on the filter screen 12.

In some embodiments, as can be seen from the foregoing, the screen 12 may be a cylindrical screen 12, and in order to make the tip portion 130 scrape off the screen 12 better when the rod 13 rotates, the first included angle θ 1 formed between the first face 13a and the first screen section 13d may satisfy: theta 1 is more than or equal to 90 degrees and less than or equal to 160 degrees, and a second included angle theta 2 formed between the third surface 13c and the second filter screen tangent plane 13e can satisfy the following conditions: θ 2 is 90 ° to 160 °, wherein the first screen cut surface 13d is the cut surface of the screen 12 abutting one of the tips 130, and the second screen cut surface 13e is the cut surface of the screen 12 abutting the other tip 130.

For example, the first angle θ 1 may be 90 °, 95 °, 100 °, 105 °, 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 °, 145 °, 150 °, 155 °, 157.5 °, 160 °, or 162.5 °, etc., and the second angle θ 2 may be 90 °, 95 °, 100 °, 105 °, 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 °, 145 °, 150 °, 155 °, 157.5 °, 160 °, or 162.5 °, etc.

Optionally, the first included angle θ 1 and the second included angle θ 2 may be the same or different. It is understood that the present embodiment is not particularly limited as long as the first included angle θ 1 satisfies 90 ° ≦ θ 1 ≦ 160 °, and the second included angle θ 2 satisfies 90 ° ≦ θ 2 ≦ 160 °, as long as the first included angle θ 1 is equal to or smaller than 90 ° ≦ θ 2.

Alternatively, the first surface 13a and the third surface 13c may or may not be connected, and when the first surface 13a and the third surface 13c are connected, a third included angle θ 3 may be formed between the first surface 13a and the third surface 13c, or a connection portion of the first surface 13a and the third surface 13c may be formed as a gently-transitional arc surface, so that when the rod member 13 is rotated in the operation process of the tube filter 1, resistance of the rod member 13 due to the fluid in the filtering space 120 is reduced.

For example, the first face 13a may be connected to the third face 13c, and a third included angle θ 3 is formed between the first face 13a and the third face 13c, and the third included angle θ 3 is disposed toward the center of the filter mesh 12. In order to optimize the scraping effect of the tip 130 on the filter screen 12 when the rod 13 rotates, and to make the rod 13 less resistant to the fluid in the filtering space 120, the third included angle θ 3 may satisfy: theta 3 is 60 DEG or more and 135 DEG or less, for example, the third angle theta 3 may be 60 DEG, 65 DEG, 70 DEG, 75 DEG, 80 DEG, 85 DEG, 90 DEG, 95 DEG, 100 DEG, 105 DEG, 110 DEG, 115 DEG, 120 DEG, 125 DEG, 130 DEG or 135 DEG or the like.

Referring to fig. 7, in other embodiments, the rod 13 may include a first surface 13a and a second surface 13b, the tip 130 may include one, and the junction of the first surface 13a and the second surface 13b forms the tip 130.

The working principle of the tubular filter 1 disclosed in the embodiment of the present invention is explained below.

When the tube filter 1 performs a filtering operation on the fluid, the fluid flows into the filtering space 120 through the inlet 100a from the other end of the filter 12, and then the filter 12 filters impurities in the fluid. The filtered fluid flows between the screen 12 and the inner wall of the main cylinder portion 100 and then flows into the inner portion of the sub cylinder portion 101, and is discharged from the discharge port 101a, thereby completing the process of filtering the fluid by the tube filter 1.

During the filtration process, the impurities in the fluid being filtered out can accumulate and adhere to the screen 12. The rotating structure 110b generates a rotating motion and drives the rod 13 to rotate through the transmission structure 110a, so that the tip 130 rotates to scrape off impurities on the filter screen 12, thereby achieving the effect of separating the impurities from the filter screen 12.

It can be understood that the tube filter 1 disclosed in the present embodiment can make the tip 130 perform a rotating scraping and stripping process on the impurities on the filter cloth 12 while the tube filter 1 performs a filtering process, so as to keep at least a partial area of the filter cloth 12 clean, thereby improving the filtering efficiency of the filter cloth 12.

In addition, in the present embodiment, the filter 12 is fixed to the cylinder cover 11, and the filter 12 can be attached and detached together with the cylinder cover 11, so that the attaching and detaching process of the tube filter 1 can be simplified effectively.

The tubular filter disclosed in the embodiments of the present invention is described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the description of the above embodiments is only used to help understand the tubular filter and its core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims (10)

1. A tubular filter, comprising:

a barrel;

the filter screen extends along the length direction of the cylinder body and is positioned in the cylinder body, and the filter screen surrounds to form a filtering space;

the rod piece extends along the length direction of the barrel body and is arranged in the filtering space, the rod piece is provided with a tip part along the circumference direction of the rod piece, and the tip part is used for being abutted against the filter screen;

the cylinder cover, the cylinder cover with the one end of filter screen is connected, just the cylinder cover lid close connect in the barrel is in order to seal the barrel, be equipped with rotary mechanism on the cylinder cover, rotary mechanism with member fixed connection, the member be used for rotary mechanism's effect is relative the filter screen rotates, so that the point portion strikes off attachment on the filter screen.

2. The candle filter of claim 1, wherein at least one end of the rod is rotatably engaged with at least one end of the screen.

3. The tube filter of claim 2, wherein the two ends of the filter screen are provided with slots, and the two ends of the rod are rotatably engaged with the slots, or the two ends of the filter screen are provided with protrusions, and the two ends of the rod are provided with slots, respectively, and the protrusions are rotatably engaged with the slots.

4. A tube filter according to any of claims 1-3, wherein the rod comprises a first rod, a second rod and a third rod, the first rod and the third rod being symmetrically arranged with respect to the center of the filter space, the first rod and the third rod each having the tip portion;

the second rod body is connected between the first rod body and the third rod body, the second rod body is close to the cylinder cover, the second rod body is connected with the rotating mechanism, and the second rod body is used for driving the first rod body and the third rod body to rotate under the action of the rotating mechanism.

5. The candle filter of claim 1, wherein the stem member comprises a first face, a second face, and a third face, the second face being connected between the first face and the third face, the second face being adapted to conform to an inner surface of the screen;

the tip includes two, the junction of first face with the second face forms one of them tip, the junction of third face with the second face forms another the tip.

6. The tube filter of claim 5 wherein the screen is a cylindrical screen and the first face forms a first angle θ 1 with a tangent plane of the first screen, θ 1 being greater than or equal to 90 ° and less than or equal to 160 °;

a second included angle theta 2 is formed between the third surface and the tangent plane of the second filter screen, and theta 2 is more than or equal to 90 degrees and less than or equal to 160 degrees;

wherein, first filter screen tangent plane be with one of them filter screen surface's tangent plane of tip butt, second filter screen tangent plane be with another filter screen surface's tangent plane of tip butt.

7. The tube filter of claim 5, wherein the first face is connected to the third face, wherein the first face and the third face form a third included angle θ 3 therebetween, wherein the third included angle θ 3 is disposed toward a center of the screen, and wherein θ 3 is 60 ° or more and 135 ° or less.

8. The candle filter of claim 4, wherein the rotation mechanism comprises a transmission structure and a rotation structure, wherein one end of the transmission structure is connected with the rod, and the other end of the transmission structure is connected with the rotation structure, and the transmission structure is used for transmitting the rotation power of the rotation structure to the rod.

9. The candle filter of claim 8, wherein the rotating structure comprises a rotating handle.

10. The tube filter of claim 1, wherein the cylinder includes a main cylinder portion in which the screen is located and an auxiliary cylinder portion having one end connected to a tube wall of the main cylinder portion, an interior of the auxiliary cylinder portion communicating with an interior of the main cylinder portion;

the main cylinder part is provided with a feed inlet and a loading and unloading port, the feed inlet and the loading and unloading port are respectively positioned at two opposite ends of the main cylinder part, and the cylinder cover is covered and connected with the loading and unloading port to seal the loading and unloading port;

the auxiliary cylinder body part deviates from one end of the main cylinder body part is provided with a discharge hole, and the discharge hole is used for discharging materials filtered by the filter screen.

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