CN219579994U - Filter capable of fixing filter bag - Google Patents

Abstract

The utility model discloses a filter capable of fixing a filter bag, which comprises a shell, a filter element and the filter bag, wherein the interior of the shell is of a hollow structure, two ends of the shell are respectively provided with an opening structure and a liquid outlet which are communicated with the hollow structure, the peripheral surface of the shell is also provided with a liquid inlet which is communicated with the hollow structure, and the filter element is installed in the hollow structure through the opening structure; the filter bag is sleeved outside the filter element, and positioning ropes are arranged at two ends of the filter bag; the opening structure is provided with an end cover, the end cover is detachably connected with the shell, the opening structure further comprises an annular sealing piece, a first fixing ring extending inwards is arranged on the end cover, a second fixing ring extending inwards is arranged on the annular sealing piece, one end of the filter element is arranged in the first fixing ring, the other end of the filter element is arranged in the second fixing ring, and two positioning ropes are respectively bound on the first fixing ring and the second fixing ring. The filter bag can be fixedly arranged on the filter element even if the filter bag is impacted by liquid, so that the position leakage and falling are avoided, and the filtering effect is ensured.

Description

Filter capable of fixing filter bag

Technical Field

The utility model relates to the technical field of filtering equipment, in particular to a filter capable of fixing a filter bag.

Background

In order to guarantee food safety and reduce the risk of foreign matters in the product, food enterprises are provided with filters for impurity filtration in the production and processing and CIP cleaning processes. The most commonly used filter in China at present is provided with a stainless steel filter element, has the advantages of convenient use, firmness and durability, but has a filtering effect which is insufficient compared with that of a filter bag.

In order to improve the filtering effect, the filter bag is additionally arranged on the filter element of the wound stainless steel filter in the key process of food production enterprises. The traditional method is that the filter bag is directly sleeved on the filter core, and then the positioning ropes at the two ends of the filter bag are tied at the two ends of the filter core for fixing. The filter bag installed in the mode is easy to run out and fall off under the impact of liquid in the product processing and CIP cleaning processes, and the filtering effect is lost.

Disclosure of Invention

The utility model provides a filter capable of fixing a filter bag, which aims to solve the technical problems that the filter bag of the filter in the prior art is easy to fall off and lose the filtering effect.

In order to solve the technical problems, the utility model adopts the following technical scheme: the filter comprises a shell, a filter element and a filter bag, wherein a hollow structure is arranged in the shell, an opening structure and a liquid outlet which are communicated with the hollow structure are respectively arranged at two ends of the shell, a liquid inlet which is communicated with the hollow structure is also arranged on the peripheral surface of the shell, and the filter element is installed in the hollow structure through the opening structure; the filter bag is sleeved outside the filter element, and positioning ropes are arranged at two ends of the filter bag; the novel filter element is characterized in that an end cover is arranged in the opening structure and is detachably connected with the shell, the novel filter element further comprises an annular sealing piece, a first fixing ring extending inwards is arranged on the end cover, a second fixing ring extending inwards is arranged on the annular sealing piece, one end of the filter element is installed in the first fixing ring, the other end of the filter element is installed in the second fixing ring, and two positioning ropes are respectively bound on the first fixing ring and the second fixing ring.

In this technical scheme, liquid gets into the casing from the inlet, and through the filtration of filter bag and filter core, flows from the liquid outlet, because the fixed locating rope at filter bag both ends is fixed to be established on first solid fixed ring and second solid fixed ring, even receive liquid impact, the filter bag still can be fixed to be located on the filter core, avoids running the position and drops, guarantees the filter effect.

Preferably, the end cover and the first fixing ring are connected into an integral structure, a first groove is formed between the end cover and the first fixing ring, the second fixing ring and the annular sealing piece are connected into an integral structure, and a second groove is formed between the second fixing ring and the annular sealing piece; each positioning rope is respectively bound on the first groove and the second groove.

Preferably, the end cover includes an outer cover connected to the case end surface to seal the opening structure, and an annular portion formed on an inner end surface of the outer cover; the annular part is connected with the first fixing ring to form the first groove, and the outer wall of the annular part is in contact with the inner wall of the shell.

Preferably, a first sealing groove and a first sealing ring are arranged on the inner end face of the outer cover, a second sealing groove is arranged on the end face of the shell, the first sealing ring is partially installed in the first sealing groove, and the other part is installed in the second sealing groove.

Preferably, a third sealing groove is formed in the outer periphery of the annular sealing piece, a second sealing ring is installed in the third sealing groove, and the outer wall of the second sealing ring is in contact with the inner wall of the shell.

Preferably, the filter cartridge further comprises a connecting structure, wherein two ends of the connecting structure are respectively connected with the end cover and the annular sealing piece to firmly connect the first fixing ring, the filter cartridge and the second fixing ring.

Preferably, the connecting structure comprises a first locking part, a second locking part and a connecting rod penetrating through the filter element; the end cover is provided with a through hole, one end of the connecting rod penetrates through the through hole and extends out of the end cover, one end of the connecting rod extending out of the end cover is connected with the first locking part, and the other end of the connecting rod is connected with the second locking part; the first locking part is contacted with the end cover to seal the through hole; the second locking portion is mounted on the annular seal.

Preferably, the first locking part is a nut structure, and the nut structure is in threaded connection with one end of the connecting rod extending out of the end cover.

Preferably, the nut structure is provided with a handle in a straight-line structure.

Preferably, an inclined surface is arranged on the inner wall of one end, far away from the second fixing ring, of the annular sealing piece, the second locking part is of a trapezoid structure, and one smaller end of the trapezoid structure is connected with the connecting rod; the trapezoid structure is abutted on the inclined plane.

Compared with the prior art, the utility model has the beneficial effects that: the liquid enters the shell from the liquid inlet, is filtered by the filter core and the filter bag, flows out from the liquid outlet, and the filter bag can be fixedly arranged on the filter core even if the liquid is impacted because the positioning ropes at the two ends of the filter bag are fixedly arranged on the first fixing ring and the second fixing ring, so that the running position and the falling off are avoided, and the filtering effect is ensured.

Drawings

FIG. 1 is a block diagram showing the whole structure of embodiment 1 of the filter of the present utility model;

FIG. 2 is a structural view of the end cap and the first retaining ring of embodiment 1 of the filter of the present utility model;

FIG. 3 is a block diagram of an annular seal and a second retaining ring in embodiment 2 of the filter of the present utility model;

FIG. 4 is a block diagram of the housing of embodiment 1 of the filter of the present utility model;

FIG. 5 is an overall construction diagram of embodiment 2 of the filter of the present utility model;

FIG. 6 is a structural view showing the structure of the connection in embodiment 2 of the filter of the present utility model;

fig. 7 is a structural view of the filter of embodiment 2 of the present utility model except for the case.

In the accompanying drawings: 1. a housing; 11. a hollow structure; 12. an opening structure; 13. a liquid outlet; 14. a liquid inlet; 15. a second seal groove; 2. a filter element; 3. a filter bag; 4. an end cap; 41. a first fixing ring; 42. a first groove; 43. an outer cover; 431. a first seal groove; 44. an annular portion; 45. a through hole; 5. an annular seal; 51. a second fixing ring; 52. a second groove; 53. a third seal groove; 54. an inclined surface; 6. a connection structure; 61. a connecting rod; 62. a first locking part; 63. a second locking part; 64. a handle.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present utility model and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.

The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:

example 1

As shown in fig. 1, 2 and 3, a filter capable of fixing a filter bag 3 comprises a shell 1, a filter element 2 and the filter bag 3, wherein a hollow structure 11 is arranged in the shell 1, an opening structure 12 and a liquid outlet 13 which are communicated with the hollow structure 11 are respectively arranged at two ends of the shell 1, a liquid inlet 14 which is communicated with the hollow structure 11 is also arranged on the peripheral surface of the shell 1, and the filter element 2 is installed in the hollow structure 11 through the opening structure 12; the filter bag 3 is sleeved outside the filter element 2, and positioning ropes are arranged at two ends of the filter bag 3; the opening structure 12 is provided with an end cover 4, the end cover 4 is detachably connected with the shell 1, the filter cartridge further comprises an annular sealing piece 5, a first fixing ring 41 extending inwards is arranged on the end cover 4, a second fixing ring 51 extending inwards is arranged on the annular sealing piece 5, one end of the filter cartridge 2 is installed in the first fixing ring 41, the other end of the filter cartridge 2 is installed in the second fixing ring 51, and two positioning ropes are respectively bound on the first fixing ring 41 and the second fixing ring 51.

In this embodiment, the liquid enters the housing 1 from the liquid inlet, passes through the filtering of the filter bag 3 and the filter element 2, and flows out from the liquid outlet 13, and because the positioning ropes at two ends of the filter bag 3 are fixedly arranged on the first fixing ring 41 and the second fixing ring 51, even if the liquid is impacted, the filter bag 3 can be fixedly arranged on the filter element 2, so that the running position and falling off are avoided, and the filtering effect is ensured. During installation, the end cover 4 and the annular sealing member 5 can be respectively installed at two ends of the filter element 2, so that the end cover 4, the annular sealing member 5 and the filter element 2 are connected into a whole; secondly, binding the positioning ropes on the filter bag 3 on the first fixing ring 41 and the second fixing ring 51 respectively, and then installing the whole body into the hollow structure 11 through the opening structure 12; finally, the end cover 4 is fixed on the shell 1, for example, a lock catch can be arranged on the shell 1, and the lock catch can fix the end cover 4 on the shell 1; or the end cover 4 and the shell 1 are respectively provided with a threaded hole, and a bolt is installed in the threaded hole, so that the end cover 4 and the shell can be connected. Of course, in other embodiments, the end cap 4 and the annular seal member 5 may be welded to the two ends of the filter element 2, respectively, to save the installation steps. In addition, the filter bag 3 can be replaced according to actual requirements.

As shown in fig. 2 and 3, the end cover 4 and the first fixing ring 41 are connected into an integral structure, a first groove 42 is formed between the end cover and the first fixing ring, and the second fixing ring 51 and the annular sealing member 5 are connected into an integral structure, and a second groove 52 is formed between the second fixing ring and the annular sealing member; each of the positioning cords is respectively bound to the first groove 42 and the second groove 52. When the filter bag 3 is impacted by liquid, the positioning ropes can be firmly fixed on the outer wall surfaces of the first groove 42 and the second groove 52, and even if the positioning ropes are loosened, the side walls of the first groove 42 and the second groove 52 can play a role in blocking to prevent the filter bag 3 from falling off when the positioning ropes move towards the liquid impact direction. Of course, other structures may be provided on the first fixing ring 41 to fix the positioning rope; for example, hooks may be provided on the first fixing ring 41, and the positioning string may be fixed on the hooks, which also plays a role of blocking the filter bag 3 from falling off.

As shown in fig. 2, the end cap 4 includes an outer cap 43, and an annular portion 44 formed on an inner end surface of the outer cap 43, the outer cap 43 being connected with an end surface of the housing 1 to seal the opening structure 12; the annular portion 44 is connected with the first fixing ring 41 to form a first groove 42, and an outer wall of the annular portion 44 is in contact with an inner wall of the housing 1. Further, as shown in fig. 1, after the positioning rope is fixed in the first groove 42, the filter bag 3 covers the outer periphery of the first fixing ring 41, so the outer diameter of the first fixing ring 41 needs to be smaller than the outer diameter of the annular portion 44, that is, the outer diameter of the first fixing ring 41 is smaller than the diameter of the inner wall of the housing 1, so that a gap is formed between the first fixing ring 41 and the inner wall of the housing 1, and the filter bag 3 is located in the gap, so that the installation is convenient. Of course, the outer circumference of the filter bag 3 may also be in contact with the inner wall of the housing 1 to enhance the stability of the filter bag 3. It should be noted that, the outer diameter of the second fixing ring 51 is also smaller than the outer diameter of the annular seal 5; similarly, a gap is also formed between the second fixing ring 51 and the inner wall of the housing 1, so as to reserve an installation space for the filter bag 3.

As shown in fig. 2, a first sealing groove 431 and a first sealing ring are provided on the inner end surface of the outer cover 43, a second sealing groove 15 is provided on the end surface of the housing 1, and the first sealing ring is partially installed in the first sealing groove, and the other part is installed in the second sealing groove. Such a structure can provide a sealing effect and prevent liquid in the hollow structure 11 from leaking. Of course, in order to increase the sealing effect, a fourth seal groove may be provided on the outer peripheral surface of the annular portion 44, and a third seal ring may be installed in the fourth seal groove, and the outer wall of the third seal ring may be in contact with the inner wall of the housing 1.

As shown in fig. 3, a third seal groove 53 is provided on the outer periphery of the annular seal 5, and a second seal ring is installed in the third seal groove 53, and the outer wall of the second seal ring contacts the inner wall of the housing 1. In this way, the annular seal can be sealingly mounted in the housing 1, preventing unfiltered liquid from flowing out through the gap between the annular seal 5 and the inner wall of the housing 1.

Example 2

This embodiment is similar to embodiment 1 described above, except that the present embodiment adds a connection structure 6 on the basis of embodiment 1.

As shown in fig. 5 and 7, a filter capable of fixing the filter bag 3 further includes a connection structure 6, and both ends of the connection structure 6 are respectively connected with the end cover 4 and the annular sealing member 5 to firmly connect the first fixing ring 41, the filter element 2 and the second fixing ring 51. After the connection structure 6 is installed, the end cap 4, the annular seal member 5 and the filter element 2 form a whole, so that the whole is installed into the hollow structure 11 of the housing 1.

As shown in fig. 6, the connecting structure 6 includes a first locking portion 62, a second locking portion 63, and a connecting rod 61 penetrating through the inside of the filter element 2; the end cover 4 is provided with a through hole 45 (see fig. 2), one end of the connecting rod 61 passes through the through hole 45 and extends out of the end cover 4, one end of the connecting rod 61 extending out of the end cover 4 is connected with the first locking part 62, and the other end is connected with the second locking part 63; the first locking portion 62 contacts the end cap 4 to seal the through hole 45; the second locking portion 63 is mounted on the annular seal 5. In this embodiment, the first locking portion 62 may be detachably connected to one end of the connecting rod 61, and the second locking portion 63 may be fixedly connected to the connecting rod 61 to form a unit; during installation, the connecting rod 61 sequentially passes through the annular sealing member 5, the second fixing ring 51, the filter element 2, the first fixing ring 41 and the through hole 45 on the end cover 4 until the second locking part 63 is abutted on the annular sealing member 5, one end of the connecting rod 61 extends out of the through hole 45, and at this time, the second locking part 63 can be installed on the extending end of the connecting rod 61. The second locking portion 63 of the present embodiment is welded to the connecting rod 61, or in other embodiments, the second locking portion 63 may be detachably provided to the connecting rod 61; for example, the second locking portion 63 may be screw-coupled with the connection rod 61.

As shown in fig. 6, the first locking portion 62 is a nut structure that is screwed to an end of the connecting rod 61 that protrudes from the end cap 4. Specifically, one end of the connecting rod 61 is provided with an external thread, and the nut structure is matched with the external thread; after the connecting rod 61 connects the end cap 4, the filter element 2, and the annular seal member 5, the nut structure can be rotated to fasten the end cap 4, the filter element 2, and the annular seal member 5. Specifically, since the nut structure is in contact with the end cap 4, the second locking portion 63 is connected to the annular sealing member 5, that is, the other end of the connecting rod 61 is fixed, so that in the process of rotating the nut structure, the nut structure can apply pressure to the end cap 4 toward the annular sealing member 5, so that the end cap 4 moves along the direction, and further fastens the end cap 4, the filter element 2 and the annular sealing member 5, so that the end cap 4, the filter element 2 and the annular sealing member 5 are tightly connected to form a whole, and the annular sealing member 5 is prevented from loosening due to impact of liquid.

As shown in fig. 6 and 7, the nut structure is provided with a handle 64 in a "straight" configuration; this facilitates the rotation of the nut structure.

As shown in fig. 6, an inner wall of one end of the annular seal member 5 away from the second fixing ring 51 is provided with an inclined surface 54 (see fig. 3), the second locking portion 63 has a trapezoidal structure, and the smaller end of the trapezoidal structure is connected with the connecting rod 61; the trapezoid structure abuts on the inclined plane 54. Specifically, the trapezoid structure can make the liquid smoothly flow through and simultaneously contact with the inclined surface 54 to play a role in connection. When the nut structure is rotated, the trapezoid structure is abutted on the inclined surface 54, and the trapezoid structure can also press the inclined surface 54; the inclined surface 54 increases the contact area between the trapezoid structure and the annular seal 5, and reduces the pressure therebetween, thereby increasing the strength of the annular seal 5.

As shown in fig. 5, the liquid outlet 13 is provided with a reducing structure capable of increasing the impact force of the liquid, that is, the pipe diameter of the liquid outlet 13 is smaller than the diameter of the shell 1. The impact force of the liquid is greatly reduced after the liquid is filtered, so that the reducing structure can increase the impact force of the liquid and ensure the impact force of the output liquid.

Example 3

The present embodiment is similar to embodiment 1, except that the end cap 4 and the first fixing ring 41 of the present embodiment are of a split structure; the annular sealing member 5 and the second fixing ring 51 may also be in a split structure, that is, the end cover 4 and the first fixing ring 41 are in a detachable connection, and the annular sealing member 5 and the second fixing ring 51 are in a detachable connection, specifically, the detachable connection may be a threaded connection, a clamping connection or a bolt connection.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a filter of fixable filter bag, includes casing (1), filter core (2) and filter bag (3), inside hollow structure (11) that is of casing (1), the both ends of casing (1) be provided with respectively with opening structure (12) and liquid outlet (13) of hollow structure (11) intercommunication, still be provided with on casing (1) global with liquid inlet (14) of hollow structure (11) intercommunication, filter core (2) are through opening structure (12) are installed into in hollow structure (11); the filter bag (3) is sleeved outside the filter element (2), and positioning ropes are arranged at two ends of the filter bag (3); be provided with end cover (4) in opening structure (12), end cover (4) with casing (1) can dismantle and be connected, a serial communication port, still include annular seal (5), set up first solid fixed ring (41) of inwards extending on end cover (4), set up second solid fixed ring (51) of inwards extending on annular seal (5), filter core (2) one end is installed in first solid fixed ring (41), the other end is installed in second solid fixed ring (51), two the locating rope is binded respectively on first solid fixed ring (41) with second solid fixed ring (51).

2. The filter with filter bag fixation according to claim 1, characterized in that the end cap (4) is connected with the first fixing ring (41) as a one-piece structure with a first groove (42) formed therebetween, the second fixing ring (51) is connected with the annular seal (5) as a one-piece structure with a second groove (52) formed therebetween; each positioning rope is respectively bound on the first groove (42) and the second groove (52).

3. A filter for a securable filter bag according to claim 2, wherein the end cap (4) comprises an outer cap (43) and an annular portion (44) formed on an inner end face of the outer cap, the outer cap (43) being connected to an end face of the housing (1) to seal the opening structure (12); the annular portion (44) is connected with the first fixing ring (41) to form the first groove (42), and the outer wall of the annular portion (44) is in contact with the inner wall of the shell (1).

4. A filter with a fixable filter bag according to claim 3, characterized in that the inner end surface of the outer cover (43) is provided with a first sealing groove (431) and a first sealing ring, the end surface of the housing (1) is provided with a second sealing groove (15), the first sealing ring is partly mounted in the first sealing groove (431), and the other part is mounted in the second sealing groove (15).

5. The filter capable of fixing the filter bag according to claim 1, wherein a third sealing groove (53) is arranged on the periphery of the annular sealing piece (5), a second sealing ring is installed in the third sealing groove (53), and the outer wall of the second sealing ring is in contact with the inner wall of the shell (1).

6. The filter with a fixable filter bag according to claim 1, further comprising a connecting structure (6), wherein both ends of the connecting structure (6) are respectively connected with the end cap (4), the annular sealing member (5) to firmly connect the first fixing ring (41), the filter cartridge (2) and the second fixing ring (51).

7. The filter of the fixable filter bag according to claim 6, characterized in that the connecting structure (6) comprises a first locking portion (62), a second locking portion (63) and a connecting rod (61) penetrating inside the filter cartridge (2); the end cover (4) is provided with a through hole (45), one end of the connecting rod (61) penetrates through the through hole (45) and extends out of the end cover (4), one end of the connecting rod (61) extending out of the end cover (4) is connected with the first locking part (62), and the other end of the connecting rod is connected with the second locking part (63); the first locking portion (62) is in contact with the end cap (4) to seal the through hole (45); the second locking portion (63) is mounted on the annular seal member (5).

8. The filter for fixing a filter bag according to claim 7, wherein the first locking portion (62) is a nut structure screwed with an end of the connecting rod (61) extending out of the end cap (4).

9. The filter for securing a filter bag according to claim 8, wherein the nut structure is provided with a handle (64) of "in-line" configuration.

10. The filter capable of fixing a filter bag according to claim 7, wherein an inner wall of one end of the annular sealing member (5) far away from the second fixing ring (51) is provided with an inclined surface (54), the second locking part (63) is of a trapezoid structure, and the smaller end of the trapezoid structure is connected with the connecting rod (61); the trapezoid structure is abutted against the inclined surface (54).