Multilayer composite liquid filter bag

Abstract

The utility model relates to the technical field of nutrient liquid filter bags, in particular to a multilayer composite liquid filter bag which comprises a mounting block and a liquid filter bag body, the surface of the mounting block is fixedly connected with an internal threaded pipe, the top of the liquid filter bag body is fixedly connected with an external threaded pipe, the external threaded pipe is in threaded connection with the surface of the internal threaded pipe, and the external threaded pipe is fixedly connected with the mounting block. A circular groove is formed in the surface of the mounting block, a liquid inlet is formed in the bottom of the circular groove, and a filter plate is arranged on the surface of the bottom of the circular groove. A push plate is pushed, the push plate drives a pull rod and a clamping pin to slide in a clamping block and extrudes a spring, and the clamping pin is separated from a fixing groove in the inner wall of a circular groove, so that the fixing relation between a filter plate and a mounting block is relieved, the filter plate is conveniently taken out from the interior of the circular groove in the later period, and impurities on the filter plate are cleaned; and compared with a bolt fixing mode, operation is easy, time and labor are saved, and the working efficiency of impurity cleaning is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid filter bag technical field especially relates to a kind of multilayer composite liquid filter bag. BACKGROUND

[0002] In numerous industrial production and related application scenarios, such as chemical industry, pharmacy, food and beverage, water treatment and electronic industry, liquid filtration is the key link in aspects of guaranteeing product quality, process smooth progress and environmental protection.

[0003] In prior art, such as Chinese patent number CN211963266U discloses a kind of high-efficiency liquid filter bag, including filter bag, connecting device, the connecting device is located filter bag top, the connecting device includes mounting plate, four corners of the mounting plate are all equipped with threaded hole, threaded hole is equipped with feed inlet between, fixed bolt is connected in threaded hole, the bottom of the mounting plate is fixedly connected with upper clamping sleeve pipe, the bottom of the upper clamping sleeve pipe is equipped with link plate, the top and bottom of the link plate are symmetrically equipped with clamping recess, the inner side of the clamping recess is equipped with through-hole, the inner wall of the through-hole is symmetrically equipped with placing plate, the top of the placing plate is equipped with connecting hole, the top of the placing plate is equipped with filter screen, the connecting hole is fixedly connected with filter screen by screw, greatly reduce the processing cost, greatly improve the service life of whole filter bag, increase the filtering strength of filter bag, more efficient than traditional single filter bag filtration.

[0004] Although the liquid filter bag realizes the filtration of impurities, the filter screen on the liquid filter bag is fixedly connected to the inner side of the link plate by screw, which makes the disassembly of the filter screen not convenient enough, and when a large amount of impurities accumulates on the filter screen, it takes time and effort to clean the impurities by disassembling the filter screen, which affects the work efficiency of impurity cleaning. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem mentioned in the above background art, and provides a kind of multilayer composite liquid filter bag.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of multilayer composite liquid filter bag, including mounting block and liquid filter bag body, the surface of the mounting block is fixedly connected with internal thread pipe, the top of the liquid filter bag body is fixedly connected with external thread pipe, the external thread pipe is threadedly connected on the surface of internal thread pipe, the surface of the mounting block is equipped with circular groove, the bottom of the circular groove is equipped with liquid inlet, the bottom surface of the circular groove is provided with filter plate, the surface of the filter plate is fixedly connected with clamping block, the inside of the clamping block is slidably connected with clamping pin, the surface of the clamping pin is fixedly connected with pull rod, one end of the pull rod is fixedly connected with push plate, the surface of the pull rod is sleeved with spring, the inner wall of the circular groove is equipped with fixed groove, the clamping pin is inserted in the inside of fixed groove.

[0007] Preferably, there are two sets of locking pins, and the two sets of locking pins are symmetrically distributed on both sides of the middle part of the filter plate surface.

[0008] Preferably, the surface of the push plate is fixedly connected with anti-slip ribs, which are evenly distributed on the surface of the push plate.

[0009] Preferably, the liquid filter bag body includes a support layer, a filter body layer, and a flow guiding layer. The support layer is made of polyester fiber fabric, the filter body layer is made of filter fiber composite, and the flow guiding layer is made of a smooth plastic film with flow guiding channels.

[0010] Preferably, the surface of the mounting block has mounting holes, and bolts are inserted into the mounting holes.

[0011] Preferably, a sealing gasket is provided at the bottom of the circular groove, the sealing gasket being located below the filter plate, and a sealing gasket is provided on the surface of the internally threaded tube, the sealing gasket being located between the mounting block and the externally threaded tube.

[0012] Preferably, the circular groove has a slot inside, a magnet is fixedly connected inside the slot, a rod is fixedly connected to the surface of the filter plate, the rod is inserted into the slot and magnetically connected to the magnet, a limiting groove is formed on the inner wall of the circular groove, a limiting block is fixedly connected to the surface of the filter plate, and the limiting block is slidably connected inside the limiting groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by pushing the push plate, the push plate drives the pull rod and the locking pin to slide inside the locking block and squeeze the spring. The locking pin disengages from the fixing groove on the inner wall of the circular groove, thereby releasing the fixed relationship between the filter plate and the mounting block. This makes it convenient to remove the filter plate from the inside of the circular groove later to clean the impurities on the filter plate. Compared with the bolt fixing method, it is not only simple to operate, but also saves time and effort, and helps to improve the efficiency of impurity cleaning.

[0015] 2. In this utility model, the insertion rod is inserted into the inside of the slot and magnetically attracted to the magnet, which further improves the stability of the connection between the filter plate and the mounting block. On the other hand, it can also improve the fit between the sealing gasket and the inside of the circular groove, thereby further improving the sealing effect. Attached Figure Description

[0016] Figure 1 A schematic diagram of a multilayer composite liquid filter bag is provided for this utility model;

[0017] Figure 2A bottom view of a multi-layer composite liquid filter bag is provided for this utility model;

[0018] Figure 3 An exploded view of a multilayer composite liquid filter bag is provided for this utility model;

[0019] Figure 4 A cross-sectional view of a multilayer composite liquid filter bag is provided for this utility model;

[0020] Figure 5 A partially exploded view of a multilayer composite liquid filter bag is provided for this utility model.

[0021] Figure 6 This utility model proposes a multi-layer composite liquid filter bag. Figure 3 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Mounting block; 2. Internally threaded pipe; 3. Externally threaded pipe; 4. Liquid filter bag body; 5. Circular groove; 6. Liquid inlet; 7. Filter plate; 8. Sealing gasket one; 9. Sealing gasket two; 10. Mounting hole; 11. Bolt; 12. Limiting groove; 13. Locking block; 14. Locking pin; 15. Pull rod; 16. Spring; 17. Push plate; 18. Anti-slip rib; 19. Slot; 20. Magnet; 21. Fixing groove; 22. Support layer; 23. Filter body layer; 24. Flow guide layer; 25. Limiting block; 26. Insert rod. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figure 3 - Figure 6As shown, this utility model provides a technical solution: a multi-layer composite liquid filter bag, including an mounting block 1 and a liquid filter bag body 4. An internally threaded tube 2 is fixedly connected to the surface of the mounting block 1, and an externally threaded tube 3 is fixedly connected to the top of the liquid filter bag body 4. The externally threaded tube 3 is threaded onto the surface of the internally threaded tube 2. A circular groove 5 is formed on the surface of the mounting block 1, and a liquid inlet 6 is formed at the bottom of the circular groove 5. A filter plate 7 is provided on the bottom surface of the circular groove 5. A locking block 13 is fixedly connected to the surface of the filter plate 7, and a locking pin 14 is slidably connected inside the locking block 13. A pull rod 15 is fixedly connected to the surface of the locking pin 14, and a push plate 17 is fixedly connected to one end of the pull rod 15. A spring 16 is sleeved on the surface of the pull rod 15. A fixing groove 21 is formed on the inner wall of the circular groove 5, and the locking pin 14 is inserted into the fixing groove 21. There are two sets of 4. The two sets of locking pins 14 are symmetrically distributed on both sides of the middle of the surface of the filter plate 7. The surface of the push plate 17 is fixedly connected with anti-slip ribs 18, which are evenly distributed on the surface of the push plate 17. The liquid filter bag body 4 includes a support layer 22, a filter body layer 23 and a flow guiding layer 24. The support layer 22 is made of polyester fiber fabric, the filter body layer 23 is made of filter fiber composite, and the flow guiding layer 24 is made of plastic film with a smooth surface and flow guiding channels. The surface of the mounting block 1 is provided with mounting holes 10, and bolts 11 are inserted into the mounting holes 10. A sealing gasket 8 is provided at the bottom of the circular groove 5. The sealing gasket 8 is located below the filter plate 7. A sealing gasket 9 is fitted on the surface of the internal threaded tube 2. The sealing gasket 9 is located between the mounting block 1 and the external threaded tube 3.

[0027] In this embodiment, by pushing the push plate 17, the push plate 17 drives the pull rod 15 and the locking pin 14 to slide inside the locking block 13 and squeeze the spring 16. The locking pin 14 disengages from the fixing groove 21 on the inner wall of the circular groove 5, thereby releasing the fixed relationship between the filter plate 7 and the mounting block 1. This facilitates the later removal of the filter plate 7 from the inside of the circular groove 5 for cleaning impurities on the filter plate 7. Compared with the method of fixing by bolts 11, this method is not only simpler to operate, but also saves time and effort, and helps to improve the efficiency of impurity cleaning. The anti-slip ribs 18 on the push plate 17 can play an anti-slip role when pushing the push plate 17. The sealing gasket 1 8 and the sealing gasket 2 9 can... The sealing effect between the external threaded pipe 3 and the internal threaded pipe 2, as well as between the filter plate 7 and the circular groove 5, is greatly improved. Through the support layer 22, the filter body layer 23, and the flow guiding layer 24 of the liquid filter bag body 4, on the one hand, sufficient tensile, tear and puncture strength is provided for the filter bag body to ensure that the filter bag maintains structural integrity when subjected to liquid pressure and external impact during the filtration process. On the other hand, multi-stage filtration of liquid can also be achieved, improving the filtration effect of the liquid filter bag body 4. Finally, the flow guiding layer 24 can guide the liquid to be filtered to flow evenly to the filter body layer 23, avoiding the phenomenon of liquid deviation and short circuit in the liquid filter bag body 4, and improving the filtration efficiency.

[0028] Example 2: AsFigure 4 - Figure 6 As shown, a slot 19 is provided inside the circular groove 5, and a magnet 20 is fixedly connected inside the slot 19. A rod 26 is fixedly connected to the surface of the filter plate 7. The rod 26 is inserted into the slot 19 and magnetically connected to the magnet 20. A limiting groove 12 is provided on the inner wall of the circular groove 5, and a limiting block 25 is fixedly connected to the surface of the filter plate 7. The limiting block 25 is slidably connected inside the limiting groove 12.

[0029] In this embodiment, by inserting the rod 26 into the slot 19 and magnetically attracting it to the magnet 20, the stability of the connection between the filter plate 7 and the mounting block 1 can be further improved. On the other hand, it can also improve the fit between the sealing gasket 8 and the inside of the circular groove 5, further improving the sealing effect. At the same time, by locking the limiting block 25 inside the limiting groove 12, the convenience of inserting the rod 26 and the locking pin 14 into the slot 19 and the fixing groove 21 can be further improved.

[0030] The working principle of this embodiment is as follows: In use, firstly, the external threaded tube 3 on the liquid filter bag body 4 is screwed onto the internal threaded tube 2. Then, the mounting block 1 is installed on the filter device by inserting the bolt 11 into the mounting hole 10. When the liquid is filtered, it first passes through the filter plate 7 and then enters the liquid filter bag body 4 for further filtration. Through the support layer 22, the filter body layer 23, and the flow guiding layer 24 of the liquid filter bag body 4, sufficient tensile, tear, and puncture strength is provided for the filter bag body to ensure that the filter bag can withstand the filtration process. The filter bag maintains structural integrity under liquid pressure and external impact, and also enables multi-stage filtration of liquids, improving the filtration effect of the filter bag body 4. Finally, the guide layer 24 guides the liquid to be filtered to flow evenly to the filter body layer 23, avoiding liquid deviation and short-circuiting within the filter bag body 4, thus improving filtration efficiency. When it is necessary to clean impurities on the filter plate 7, the push plate 17 is pushed, which drives the pull rod 15 and the locking pin 14 to slide inside the locking block 13 and compress the spring 16. The locking pin 14 then moves from... The filter plate 7 is released from the fixing groove 21 on the inner wall of the circular groove 5, thus relieving the fixed relationship between the filter plate 7 and the mounting block 1. This makes it easier to remove the filter plate 7 from the inside of the circular groove 5 for cleaning impurities. Compared with the fixing method using bolts 11, this method is not only simpler to operate but also saves time and effort, and improves the efficiency of impurity cleaning. The anti-slip ribs 18 on the push plate 17 can play an anti-slip role when pushing the push plate 17. The sealing gasket 1 8 and sealing gasket 2 9 can effectively improve the sealing effect between the external threaded pipe 3 and the internal threaded pipe 2, as well as between the filter plate 7 and the circular groove 5. When the filter plate 7 is installed inside the circular groove 5, the insertion rod 26 is inserted into the slot 19 and magnetically attracted to the magnet 20, which further improves the stability of the connection between the filter plate 7 and the mounting block 1. On the other hand, it can also improve the fit of the sealing gasket 1 8 with the inside of the circular groove 5, further improving the sealing effect. At the same time, the limit block 25 is locked inside the limit groove 12, which further improves the convenience of inserting the insertion rod 26 and the locking pin 14 into the slot 19 and the fixing groove 21.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-layer composite liquid filter bag comprising a mounting block (1) and a liquid filter bag body (4), characterized in that: The surface of the mounting block (1) is fixedly connected with an internally threaded pipe (2), the top of the liquid filter bag body (4) is fixedly connected with an externally threaded pipe (3), the externally threaded pipe (3) is threadedly connected on the surface of the internally threaded pipe (2), the surface of the mounting block (1) is provided with a circular groove (5), the bottom of the circular groove (5) is provided with a liquid inlet (6), the bottom surface of the circular groove (5) is provided with a filter plate (7), the surface of the filter plate (7) is fixedly connected with a clamping block (13), the clamping block (13) is slidably connected with a clamping pin (14), the surface of the clamping pin (14) is fixedly connected with a pull rod (15), one end of the pull rod (15) is fixedly connected with a push plate (17), the surface of the pull rod (15) is sleeved with a spring (16), the inner wall of the circular groove (5) is provided with a fixed groove (21), and the clamping pin (14) is inserted into the fixed groove (21).

2. The multi-layer composite liquid filter bag of claim 1, wherein: The number of the clamping pin (14) is two groups, and the two groups of clamping pins (14) are symmetrically distributed on both sides of the middle of the surface of the filter plate (7).

3. The multi-layer composite liquid filter bag of claim 1, wherein: The surface of the push plate (17) is fixedly connected with an anti-skid rib (18), and the anti-skid rib (18) is uniformly distributed on the surface of the push plate (17).

4. The multi-layer composite liquid filter bag of claim 1, wherein: The liquid filter bag body (4) comprises a support layer (22), a filter main body layer (23) and a flow guide layer (24), the support layer (22) is a polyester fiber fabric, the filter main body layer (23) is composed of filter fibers, and the flow guide layer (24) is woven from a plastic film with a smooth surface and flow guide channels.

5. The multi-layer composite liquid filter bag of claim 1, wherein: The surface of the mounting block (1) is provided with a mounting hole (10), and the mounting hole (10) is inserted with a bolt (11).

6. The multi-layer composite liquid filter bag of claim 1, wherein: The bottom of the circular groove (5) is provided with a sealing washer I (8), the sealing washer I (8) is located below the filter plate (7), the surface of the internally threaded pipe (2) is sleeved with a sealing washer II (9), and the sealing washer II (9) is located between the mounting block (1) and the externally threaded pipe (3).

7. The multi-layer composite liquid filter bag of claim 1, wherein: The inside of the circular groove (5) is provided with a plug groove (19), the plug groove (19) is fixedly connected with a magnet (20) inside, the surface of the filter plate (7) is fixedly connected with a plug rod (26), the plug rod (26) is inserted into the plug groove (19) and is magnetically connected with the magnet (20), the inner wall of the circular groove (5) is provided with a limiting groove (12), and the surface of the filter plate (7) is fixedly connected with a limiting block (25) which is slidably connected in the limiting groove (12).

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