CN212757500U - Filter device - Google Patents
Filter device Download PDFInfo
- Publication number
- CN212757500U CN212757500U CN202021206907.0U CN202021206907U CN212757500U CN 212757500 U CN212757500 U CN 212757500U CN 202021206907 U CN202021206907 U CN 202021206907U CN 212757500 U CN212757500 U CN 212757500U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- outer cylinder
- base
- positioning groove
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtration Of Liquid (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a filtering device, which comprises a base, a cylinder body, a clamping ring and a filter element, wherein the base and the cylinder body are in sealing connection through the clamping ring; the base comprises an outer cylinder part and a bottom plate, the bottom plate extends upwards to form an inner cylinder, an annular liquid distribution flow channel is formed between the inner cylinder and the outer cylinder part, and the filter element is connected to the inner cylinder; the base is provided with a liquid inlet pipe communicated with the annular liquid distribution flow channel and a liquid outlet pipe communicated with the inner cylinder; one of the cylinder body and the outer cylinder part is provided with a first positioning groove for clamping a sealing element, the sealing element is firmly clamped in the first positioning groove, the cylinder body is arranged behind the top end of the outer cylinder part, and the sealing element cannot be randomly deviated and cannot fall off in the process of connecting the cylinder body to the top end of the outer cylinder part in a sealing manner through the clamping ring. After the clamping ring is fastened, the extrusion acting force on the whole surface of the sealing element is uniform and sufficient everywhere, the internal thread of the clamping ring and the external thread of the outer cylinder are screwed on the outer side of the sealing element in a wrapping mode, and the optimal sealing is achieved between the cylinder and the outer cylinder of the base.
Description
Technical Field
The utility model belongs to the technical field of filter, especially, relate to a filter equipment.
Background
The filtering device in the prior art comprises a base and a barrel body which is in sealing connection with the base, wherein the base comprises a cylindrical outer barrel part and a base plate, the outer barrel part and the base plate are integrally formed, and a plurality of supporting ribs are formed by upwards extending from the connection part of the outer barrel part and the base plate along the inner wall of the outer barrel part.
The liquid inlet pipe is formed at the joint of the outer cylinder part and the bottom plate, and at the opposite side of the liquid inlet pipe, a liquid outlet pipe is formed by extending a length from the side wall of the inner cylinder outwards along the radial direction of the outer cylinder part and penetrates through the outer cylinder part to form a liquid outlet pipe, the liquid outlet pipe is communicated with the inside of the inner cylinder, and the liquid outlet pipe spans across the annular liquid distribution flow channel.
The filter core passes through the inner tube of slope structure detachably sealing connection to base, and the back is accomplished in the filter core installation, and the end cover of filter core supports the top of leaning on the inner tube simultaneously and the top of a plurality of brace rod. Because the top of a plurality of brace rods flushes with the top of inner tube, after the filter core installation, the end cover is withstood by the top of a plurality of brace rods and the top of inner tube simultaneously.
During filtration, raw material liquid flows in from the feed liquor pipe, and in the annular liquid distribution runner that forms between the inner wall of the periphery of entering inner tube and outer barrel portion, the liquid level continues to rise, and until raw material liquid contacts the filter medium of filter core, the pollutant is held back by the filter core, and inside clean filtrate flows to the inner tube, finally flows through the drain pipe.
The cylinder is connected to the base in a sealing mode through the sealing ring and the locking ring, specifically, the lower end of the cylinder is provided with the flange, the sealing ring is directly placed on the top end face of the outer cylinder of the base, the locking ring is sleeved on the periphery of the lower end of the cylinder, the cylinder is placed at the upper end of the base, the locking ring is fastened, the inner threads of the locking ring are screwed with the outer threads of the top end of the outer cylinder of the base in a screwing mode, after the screwing is completed, the locking ring presses the flange of the cylinder, and the flange of.
The top end of the outer cylinder part of the base is an annular plane, or the top end of the outer cylinder part of the base is a step surface, and the top end of the outer cylinder part is not provided with any other structure for fixing or positioning the sealing ring. When the top end of the outer cylinder part is an annular plane, the sealing ring is directly placed on the annular plane at the top end of the outer cylinder part, and the sealing ring which is not fixed can fall off in the process of placing the cylinder body above the outer cylinder part, so that the operation is inconvenient; alternatively, the seal ring may be misaligned during tightening of the locking ring, resulting in the seal ring eventually being subjected to an uneven, insufficient compressive force by the flange and the top end of the outer barrel, and thus failing to provide an optimal seal. When the top end of the outer cylinder portion is a stepped surface and the stepped surface is located on the inner side of the top end of the outer cylinder portion, after the seal ring is placed on the stepped surface, the extrusion acting force on the whole surface of the seal ring is not uniform after the lock ring is fastened, and the extrusion acting force on the outer side is larger, so that the optimal sealing performance cannot be provided, and the service life of the seal ring is shortened.
Therefore, there is a need for an improved sealing connection between the body and the base of the filter device, in particular to facilitate the positioning of the sealing ring and to ensure that the filter device provides an optimal sealing performance after assembly.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a filtering device, its barrel and base sealing connection's sealing member can not drop or squint, equipment convenient operation, and the leakproofness is reliable.
The utility model provides a technical scheme that its technical problem adopted is:
a filtering device comprises a base, a cylinder, a clamping ring and a filter element arranged inside the base and the cylinder, wherein the base and the cylinder are in sealing connection through the clamping ring;
the base comprises an outer cylinder part and a bottom plate, the bottom plate extends upwards to form an inner cylinder, an annular liquid distribution flow channel is formed between the periphery of the inner cylinder and the inner wall of the outer cylinder part, and the filter element is connected to the inner cylinder;
the base is provided with a liquid inlet pipe communicated with the annular liquid distribution flow channel;
on the opposite side of the liquid inlet pipe, the side wall of the inner cylinder and the side wall of the outer cylinder part are penetrated simultaneously, and a liquid outlet pipe is formed along the radial extension of the outer cylinder part, spans across the annular liquid distribution flow passage and is communicated with the inner cylinder;
one of the bottom of the cylinder and the top of the outer cylinder forms a first positioning groove, and the sealing element is clamped in the first positioning groove;
the rand includes the upper portion body and has the internal thread lower part body, outer barrel portion top outer wall has the external screw thread, after filter equipment assembled, the upper portion body of rand produces the pressing action towards the base direction to the barrel, the sealing member in the first positioning groove receives the squeezing action between barrel and the outer barrel portion, the internal thread of rand and the external screw thread of outer barrel portion spiral shell in the outside of sealing member with surrounding to make barrel and outer barrel portion form sealing connection.
The utility model provides an among the filter equipment, at least one in the top of the bottom of its barrel and the outer barrel portion of base has first positioning groove, and in the sealing member was fixed in first positioning groove, barrel sealing connection was in the top of the outer barrel portion of base after, the sealing member received the extrusion between the bottom of barrel and the top of outer barrel portion to form sealing connection. Because at least one in the bottom of barrel and the top of outer barrel portion has first positioning groove, the in-process of filter equipment installation is directly put the sealing member in first positioning groove, and it is more convenient to operate, and the location is easier, and the sealing member is firmly fixed in first positioning groove, can not drop at will. After putting the barrel at the top of outer section of thick bamboo portion, and at the in-process of the top of being connected to outer section of thick bamboo portion with the barrel seal through the rand, the sealing member can not squint at will either, rand fastening is accomplished the back, the extrusion effort that the whole surface of sealing member received everywhere is even, abundant, and simultaneously, the internal thread of rand and the external screw thread of outer section of thick bamboo portion are the spiro union in the outside of sealing member with wrapping around, and then can realize best sealed between the bottom of barrel and the top of the outer section of thick bamboo portion of base, and, because the sealing member atress is even, can. The cylinder body and the base are connected or separated through the clamping ring, and the operation is convenient.
Furthermore, an annular flange is formed on the periphery of the bottom of the cylinder, the upper body is provided with a pressing part formed on the radial inner side of the internal thread, the first positioning groove is located on one of the lower end face of the annular flange and the top end face of the outer cylinder, after the filter device is assembled, the pressing part presses the annular flange, and the sealing element in the first positioning groove is pressed between the lower end face of the annular flange and the top end face of the outer cylinder.
The bottom end of the cylinder body is provided with an annular flange formed on the periphery, the first positioning groove is positioned at one of the lower end of the annular flange and the top end of the outer cylinder part, and the sealing element is fixed in the first positioning groove; if the first positioning groove is positioned at the lower end of the annular flange, the sealing element is fixed in the first positioning groove at the lower end of the annular flange, and after the filtering device is installed, the sealing element is subjected to the extrusion action in the vertical direction between the top end surface of the outer cylinder part and the groove bottom of the first positioning groove, so that the sealing connection is formed between the bottom end of the cylinder body and the top end of the outer cylinder part. Or when the first positioning groove is positioned at the top end of the outer cylinder part, the sealing element is fixed in the first positioning groove at the top end of the outer cylinder part, and after the filtering device is installed, the sealing element is subjected to the extrusion action in the vertical direction between the lower end surface of the annular flange and the groove bottom of the first positioning groove, so that the sealing connection is also formed between the bottom end of the cylinder and the top end of the outer cylinder part.
The barrel passes through rand sealing connection to the base, and the rand fastening is accomplished the back, and the annular flange of barrel is pressed to the splenium of rand, has increased the squeezing action that sealing member received in the first positioning groove to sealing connection between the bottom of barrel and the top of outer barrel is more reliable.
Further, 50 to 70% of the radial width of the annular flange is pressed by the pressing portion.
Guarantee annular flange and press the splenium to have sufficient area of contact, press the external force of applying on the splenium and can effectively transmit to annular flange, the cooperation structure is more firm, simultaneously, also is convenient for overlap the rand in the periphery of barrel lower extreme.
Further, an inner wall surface of the pressing portion is located radially inward of a vertical center line of the seal member.
The inner wall surface of the pressing part is positioned on the radial inner side of the vertical center line of the sealing element, namely more than half of the area of the sealing element is pressed by the pressing part, so that the pressing action of the pressing part can be uniformly dispersed in more than 50% of the area of the sealing element, and the sealing performance between the cylinder body and the outer cylinder part of the base is more reliable.
Further, the annular flange is provided with an extension part which can axially extend into the outer cylinder part below, and the maximum outer diameter of the extension part is 1-3mm smaller than the inner diameter of the outer cylinder part.
The cylinder is arranged above the outer cylinder part, the extending part extends into the outer cylinder part of the base to prevent the cylinder from sliding off the outer cylinder part, the maximum outer diameter of the extending part is 1-3mm smaller than the inner diameter of the outer cylinder part, the cylinder can conveniently extend into the outer cylinder part and form positioning between the cylinder and the outer cylinder part, and subsequent fixed connection operation between the cylinder and the outer cylinder part is facilitated.
Furthermore, the extension part is provided with a positioning part of which the outer surface is a cylindrical surface, and the positioning part is at the maximum outer diameter of the extension part.
The cylindrical surface of the positioning part is convenient for the positioning between the extension part and the outer cylinder part.
Furthermore, a second positioning groove is arranged above the outer side wall of the extension part and the positioning part, the sealing element is arranged in the second positioning groove, and the outer surface of the sealing element protrudes out of the outer side wall of the positioning part.
The periphery of extension still has second positioning groove, second positioning groove is located the upper end of location portion, add in the second positioning groove and establish the sealing member, after the filter equipment installation, the inside wall on the periphery of extension and the top of urceolus portion is through the extrusion to the sealing member in the second positioning groove, form sealedly, also through the extrusion to the sealing member between the lower extreme of annular flange and the top of urceolus portion, form sealedly to form double seal effect between the bottom of barrel and the top of urceolus portion.
Furthermore, the tail end of the extension part forms a guide-in part with a conical surface on the outer surface, and the conical surface obliquely extends from bottom to top and from inside to outside.
The conical surface-shaped leading-in surface facilitates the extension part to extend into the outer cylinder part.
Further, the taper of the conical surface is 30 degrees.
The outer diameter of the positioning part of the extending part is the largest, so that the optimal positioning is conveniently formed between the cylinder body and the outer cylinder part, the taper of the outer surface of the leading-in part is 30 degrees, and the cylinder body is convenient to manufacture on the premise that the extending part conveniently extends into the outer cylinder part.
Furthermore, the top end of the cylinder body is provided with an exhaust port.
The air outlet is convenient for discharging air bubbles between the outer side of the filter element and the barrel body and the base.
The utility model has the advantages that: at least one of the bottom end of the barrel of the filtering device and the top end of the outer barrel of the base is provided with a first positioning groove, the sealing element is fixed in the first positioning groove, after the barrel is installed at the top end of the outer barrel of the base, the clamping ring presses the bottom end of the barrel, and the sealing element is extruded between the bottom end of the barrel and the top end of the outer barrel, so that sealing connection is formed. After putting the top of outer section of thick bamboo portion with the barrel, and at the in-process on the top of being connected to outer section of thick bamboo portion with the barrel seal through the rand, the sealing member is owing to block well in first recess, can not drop at will, also can not skew at will, the rand fastening is accomplished the back, the extrusion effort that the whole surface of sealing member received everywhere is even, abundant, simultaneously, the external side in the sealing member is screwed on with wrapping up to the external screw thread of the internal thread of rand and outer section of thick bamboo portion, and then can realize the best sealed between the top of the outer section of thick bamboo portion of bottom at the barrel and base, and, because the sealing member atress is.
Drawings
Fig. 1 is a front view of the filtering device provided by the present invention.
FIG. 2 is a front view of the base of the filtering device of the present invention
Fig. 3 is a cross-sectional view of a first embodiment of the filtering apparatus provided by the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a cross-sectional view of a cylinder in a second embodiment of the filtering apparatus provided by the present invention.
Fig. 6 is an enlarged view of fig. 5 at B.
Fig. 7 is a cross-sectional view of a third cylinder of the embodiment of the filtering apparatus provided by the present invention.
Fig. 8 is an enlarged view of fig. 7 at C.
The device comprises a base 1, an outer cylinder 11, an outer cylinder 111, an external thread 12, a bottom plate 121, an inner surface 122, an outer surface 123, a second liquid outlet 124, a joint 124, an inner cylinder 13, a liquid inlet pipe 14, a liquid outlet pipe 15, a cylinder 2, an annular flange 21, an extension 22, a positioning part 23, a guide-in part 24, a conical surface 241, an exhaust port 25, a filter element 3, an end cover 31, a joint 32, a sealing ring 33, an annular liquid distribution flow channel 4, a clamping ring 5, an upper body 51, a pressing part 511, a lower body 52, an internal thread 521, a first positioning groove 61, a second positioning groove 62 and a sealing element 7.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution 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 efforts shall belong to the protection scope of the present invention.
Example one
As shown in fig. 1-4, a filter device comprises a base 1, a cylinder 2, a clamping ring 5, and a filter element 3 which is detachably arranged inside the base 1 and the cylinder 2, wherein the base 1 and the cylinder 2 form a sealing connection through the clamping ring 5.
The base 1 comprises a bottom plate 12 and an outer cylinder part 11 which is in a hollow cylindrical shape and is provided with an opening at the top, the bottom plate 12 and the outer cylinder part 11 are integrally formed, the center of the bottom plate 12 extends upwards to form an inner cylinder 13, the inner cylinder 13 is in a hollow cylindrical shape, the height of the inner cylinder 13 is smaller than that of the outer cylinder part 11, and an annular liquid distribution flow passage 4 is formed between the periphery of the inner cylinder 13 and the inner wall of the outer cylinder part 11.
In the present embodiment, the inner tube 13 and the outer tube 11 are concentrically arranged, but they may be arranged eccentrically. The top opening of the inner cylinder 13 is detachably connected with the filter element 3, specifically, a joint 32 communicated with the inside of the central rod of the filter element 3 is arranged on the lower side end cover 31 of the filter element 3, and the filter element 3 is detachably and hermetically connected with the inner cylinder 13 through the joint 32 and a sealing ring 33.
The inner surface 121 of the bottom plate 12 is a curved surface, the outer surface 122 thereof may also be a curved surface, the junction 124 of the bottom plate 12 and the outer cylinder 11 is an arc transition, that is, there is an arc R in fig. 3, and the bottom of the outer cylinder 11 and the outer edge of the bottom plate 12 are transitionally connected through the arc surface, which is also convenient for fluid flow and reduces flow resistance.
A liquid inlet pipe 14 is formed at the joint of the outer barrel part 11 and the bottom plate 12 on the base 1, and the liquid inlet pipe 14 is communicated with the annular liquid distribution flow passage 4; of course, in other embodiments, the liquid inlet pipe 14 may be disposed on the outer cylinder 11 or on the bottom plate 12, and the specific location is not limited.
The region of the bottom plate 12 corresponding to the annular liquid distribution flow passage 4 is provided with a first liquid discharge port (not shown) for discharging the liquid loading of the raw material liquid, and the region of the bottom plate 12 corresponding to the inner cylinder 13 is provided with a second liquid discharge port 123 for discharging the liquid loading of the clean filtrate.
On the opposite side of the liquid inlet pipe 14, there is a liquid outlet pipe 15, and the opposite side may be a completely opposite position, that is, an included angle between a central line of the liquid inlet pipe 14 and a central line of the liquid outlet pipe 15 is 180 °, or an incompletely opposite position, that is, an included angle between a central line of the liquid inlet pipe 14 and a central line of the liquid outlet pipe 15 is not 180 °, in this embodiment, the liquid inlet pipe 14 and the liquid outlet pipe 15 are completely opposite.
The liquid outlet pipe 15 penetrates through the side wall of the inner cylinder 13 and the side wall of the outer cylinder 11 at the same time, is formed by extending along the radial direction of the outer cylinder 11, spans the annular liquid distribution flow passage 4 and is communicated with the inner cylinder 13 at one end; part of the side walls are shared between outlet 15 and base plate 12, i.e. part of the side walls of outlet 15 are the side walls of base plate 12.
In order to facilitate the discharge of the gas inside, the top end of the cylinder 2 is opened with an exhaust port 25.
The outer cylinder 11 has external threads 111 on its top outer wall, and the collar 5 includes an upper body 51 and a lower body 52, in this embodiment, the upper body 51 and the lower body 52 are integrally formed, and the inner wall of the lower body 52 forms internal threads 521.
One of the bottom of the cylinder 2 and the top of the outer cylinder 11 forms a first positioning groove 61, and the sealing element 7 is clamped in the first positioning groove 61; after the filter device is assembled, the upper body 51 of the clamp ring 5 presses the cylinder 2 towards the base 1, the sealing element 7 in the first positioning groove 61 is pressed between the cylinder 2 and the outer cylinder 11, the internal thread 521 of the clamp ring 5 and the external thread 111 of the outer cylinder 11 are screwed on the outer side of the sealing element 7 in a wrapping mode, namely, the clamp ring 5 and the outer cylinder 11 are in threaded connection in a circle around the circumference, and at least part of the threaded connection is opposite to the sealing element 7 in the radial direction, so that the sealing performance between the cylinder 2 and the outer cylinder 11 is more reliable.
In this embodiment, a first positioning groove 61 with an upward opening is formed on the top end surface of the outer cylinder 11, and the sealing member 7 is clamped in the first positioning groove 61 without being deviated.
Further, an annular flange 21 is formed on the bottom outer periphery of the cylindrical body 2, and the upper body 51 has a pressing portion 511 formed radially inside the female screw 521.
After the filter device is assembled, the internal thread 521 of the collar 5 is matched and connected with the external thread 111 of the outer cylinder 11, the pressing part 511 is pressed against the upper surface of the annular flange 21 to form a pressing action, namely, the upper part body 51 of the collar 5 generates the pressing action towards the direction of the base 1 on the cylinder 2, meanwhile, the sealing element 7 in the first positioning groove 61 is pressed between the lower end surface of the annular flange 21 and the top end surface of the outer cylinder 11, and the internal thread 521 and the external thread 111 are screwed on the outer side of the sealing element 7 in a wrapping manner, so that the cylinder 2 and the outer cylinder 11 are in sealing connection.
50-70% of the radial width of the annular flange 21 is pressed by the pressing part 511, namely the part of the annular flange 21 and the pressing part 511 which are overlapped up and down accounts for 50-70% of the radial width of the whole annular flange 21, so that a sufficient contact area between the annular flange 21 and the pressing part 511 is ensured, the pressing part 511 can generate a sufficiently large and uniform pressing effect on the annular flange 21, the stability of the matching structure of the annular flange 21 and the pressing part 511 is ensured, and meanwhile, the clamping ring 5 is conveniently sleeved on the periphery of the bottom end of the cylinder body 2.
The inner wall surface of the pressing portion 511 is located radially inward of the vertical center line of the seal 7, and if the straight line defining the inner wall surface of the pressing portion 511 in fig. 4 is a vertical line O1 and the vertical center line of the seal 7 is O2, O1 is located radially inward of O2. More than half of the area of the seal 7 receives the pressing action of the pressing portion 511, so that the pressing action of the pressing portion 511 can be uniformly dispersed in 50% or more of the area of the seal 7, and the sealing performance between the cylindrical body 2 and the outer cylindrical portion of the chassis 1 can be more secured.
The annular flange 21 is provided with an extension part 22 which can axially extend into the outer cylinder part 11, and the maximum outer diameter position of the extension part 22 is 1-3mm smaller than the inner diameter of the outer cylinder part 11, so that the extension part 22 can extend into the outer cylinder part 11 during assembly, and subsequent fixed connection assembly operation of the cylinder body 2 and the outer cylinder part 11 is facilitated.
The extension part 22 comprises a positioning part 23 with a cylindrical outer surface and a guiding part 24 with a conical surface 241 on the outer surface, and the positioning part 23 is the position with the largest outer diameter of the extension part 22, so that the distance between the outer wall of the positioning part 23 and the inner wall of the outer cylinder part 11 is 1-3mm, namely L in FIG. 4 is 1-3 mm; the conical surface 241 extends obliquely from inside to outside from bottom to top, the taper angle is 30 degrees, namely the angle alpha in fig. 4 is 30 degrees, the angle is convenient for the extension part 22 to extend into the outer cylinder part 11, and the processing process is simple.
Example two
As shown in fig. 5 and 6, the present embodiment is different from the first embodiment in that the first positioning groove 61 is located at the bottom of the cylinder 2, i.e., the lower end surface of the annular flange 21, and the opening of the first positioning groove 61 is disposed downward, in which case the top end surface of the outer cylinder 11 is a plane. The sealing member 7 is clamped in the first positioning groove 61, the sealing member 7 is pressed between the lower end surface of the annular flange 21 and the top end surface of the outer cylinder part 11, and the internal thread 521 and the external thread 111 are screwed on the outer side of the sealing member 7 in a wrapping manner, so that the cylinder 2 and the outer cylinder part 11 form a sealing connection.
Other structures are the same as those of the first embodiment, and are not described again.
EXAMPLE III
As shown in fig. 7 and 8, in this embodiment, on the basis of the first or second embodiment, a second positioning groove 62 is formed on the outer sidewall of the extension portion 22 and above the positioning portion 23. The opening of the second positioning groove 62 is arranged towards the radial outer side, the sealing element 7 is clamped in the second positioning groove 62, and part of the outer surface of the sealing element 7 protrudes out of the outer side wall of the positioning part 23, namely, as shown in fig. 8, the outer side wall of the positioning part 23 is positioned on a vertical line O3, and part of the sealing element 7 protrudes out of a vertical line O3, so that the outer cylinder part 11 and the sealing element 7 are ensured to be in sufficient contact, and the sealing connection between the base 1 and the cylinder 2 is further ensured.
Therefore, after the filter device is assembled, the sealing element 7 in the first positioning groove 61 and the sealing element 7 in the second positioning groove 62 realize double sealing action on the cylinder 2 and the outer cylinder 11, and the sealing effect is better.
The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.
Claims (10)
1. The utility model provides a filter equipment, includes base, barrel, rand, and installs the filter core in the inside of base and barrel, base and barrel form sealing connection, its characterized in that via the rand:
the base comprises an outer cylinder part and a bottom plate, the bottom plate extends upwards to form an inner cylinder, an annular liquid distribution flow channel is formed between the periphery of the inner cylinder and the inner wall of the outer cylinder part, and the filter element is connected to the inner cylinder;
the base is provided with a liquid inlet pipe communicated with the annular liquid distribution flow channel;
on the opposite side of the liquid inlet pipe, the side wall of the inner cylinder and the side wall of the outer cylinder part are penetrated simultaneously, and a liquid outlet pipe is formed along the radial extension of the outer cylinder part, spans across the annular liquid distribution flow passage and is communicated with the inner cylinder;
one of the bottom of the cylinder and the top of the outer cylinder forms a first positioning groove, and the sealing element is clamped in the first positioning groove;
the rand includes the upper portion body and has the internal thread lower part body, outer barrel portion top outer wall has the external screw thread, after filter equipment assembled, the upper portion body of rand produces the pressing action towards the base direction to the barrel, the sealing member in the first positioning groove receives the squeezing action between barrel and the outer barrel portion, the internal thread of rand and the external screw thread of outer barrel portion spiral shell in the outside of sealing member with surrounding to make barrel and outer barrel portion form sealing connection.
2. The filtration device of claim 1, wherein: the bottom periphery of the cylinder is provided with an annular flange, the upper body is provided with a pressing part formed on the radial inner side of the internal thread, the first positioning groove is located on one of the lower end face of the annular flange and the top end face of the outer cylinder part, after the filtering device is assembled, the pressing part presses the annular flange, and the sealing element in the first positioning groove is squeezed between the lower end face of the annular flange and the top end face of the outer cylinder part.
3. The filtration device of claim 2, wherein: 50-70% of the radial width of the annular flange is pressed by the pressing portion.
4. The filtration device of claim 2, wherein: the inner wall surface of the pressing portion is located radially inward of a vertical center line of the seal member.
5. The filtration device of claim 2, wherein: the annular flange is provided with an extension part which can axially extend into the outer cylinder part, and the maximum outer diameter of the extension part is 1-3mm smaller than the inner diameter of the outer cylinder part.
6. The filtration device of claim 5, wherein: the extension part is provided with a positioning part of which the outer surface is a cylindrical surface, and the positioning part is the maximum outer diameter of the extension part.
7. The filtration device of claim 6, wherein: and a second positioning groove is arranged above the outer side wall of the extension part and the positioning part, the sealing element is arranged in the second positioning groove, and the outer surface of the sealing element protrudes out of the outer side wall of the positioning part.
8. The filtration device of claim 6, wherein: the tail end of the extension part forms a leading-in part with a conical surface on the outer surface, and the conical surface obliquely extends from bottom to top and from inside to outside.
9. The filtration device of claim 8, wherein: the taper of the conical surface is 30 degrees.
10. The filtration device of claim 1, wherein: and an exhaust port is arranged at the top end of the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206907.0U CN212757500U (en) | 2020-06-24 | 2020-06-24 | Filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206907.0U CN212757500U (en) | 2020-06-24 | 2020-06-24 | Filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212757500U true CN212757500U (en) | 2021-03-23 |
Family
ID=75074225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021206907.0U Active CN212757500U (en) | 2020-06-24 | 2020-06-24 | Filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212757500U (en) |
-
2020
- 2020-06-24 CN CN202021206907.0U patent/CN212757500U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212757500U (en) | Filter device | |
| CN109339053B (en) | Bridge slip casting pipe | |
| CN218917136U (en) | Hollow fiber separation membrane testing device | |
| CN211585322U (en) | Novel chromatography hollow column | |
| CN211799192U (en) | Split type filter screen for filter | |
| CN213929811U (en) | Sealing connection structure for loose joint pipe fitting | |
| CN210699065U (en) | Filter for material injection system of wet-pressing magnetic shoe forming press | |
| CN210645276U (en) | Filter press | |
| CN202355898U (en) | Filter | |
| CN210786471U (en) | Filter device for production pipeline | |
| CN201982860U (en) | Adding interface | |
| CN206285562U (en) | Dredging filter | |
| CN218200025U (en) | Defoaming extrusion device for barreled glue | |
| CN218267745U (en) | Water pump filter mounting structure | |
| CN213598655U (en) | Valve assembly | |
| CN217526495U (en) | Filter tube surface covering tube of U-shaped air and water distribution system of carbon filter | |
| CN215462327U (en) | Silicone sealant fine filter | |
| CN213192641U (en) | Material mould | |
| CN215981331U (en) | Snap ring device, connector and water outlet device | |
| CN212954424U (en) | Ion exchange resin tank | |
| CN210684185U (en) | Loose wool dyeing device | |
| CN216428451U (en) | Quick-mounting drainer | |
| CN217644737U (en) | Perfume bottle | |
| CN219168394U (en) | Reaction kettle with discharging and filtering functions | |
| CN203469598U (en) | Color paste filtering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |