A cloth bag filter

CN224598952UActive Publication Date: 2026-08-07FOSHAN LVHUI ENVIRONMENTAL PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN LVHUI ENVIRONMENTAL PROTECTION EQUIP CO LTD
Filing Date
2025-09-04
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]发明人在日常工作中发现过滤器仍至少存在以下问题:使用过滤器的时候,通过进料口把原料通到支撑筒的内部,进而使得原料通过布袋主体,使得原料被过滤,这样便于原料的过滤一定的粉尘,但是在实际的使用过程中,布袋是设置在支撑筒的内部,这样在更换布袋的时候比较麻烦

Benefits of technology

[0006] The effect achieved by the above components is as follows: when using the connecting device, the fixing ring is squeezed into the inside of the fixing frame, and then the first rubber ring is set on the top of the fixing ring. This makes it easy to restrict the main body of the bag inside the support cylinder, and the reverse operation makes it easy to disassemble the main body of the bag.

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Abstract

The utility model provides a cloth bag filter relates to filter technical field, the utility model discloses a support cylinder, the top hinged of support cylinder is connected cover, one end of support cylinder is provided with feed inlet, the bottom of support cylinder is provided with the discharge gate, the surface of feed inlet and discharge gate all is provided with the valve, the inner wall of support cylinder is provided with cloth bag main part, the inside of support cylinder is provided with connecting device, connecting device includes fixed frame, the top fixed connection of fixed frame and support cylinder inner wall, the inner wall of fixed frame is provided with fixed ring, the top of fixed ring and the bag mouth of cloth bag main part fixed connection, the inner wall fixed connection of fixed frame has first rubber ring, when using connecting device, extrude fixed ring to the inside of fixed frame, and then set first rubber ring on the top of fixed ring, like this convenient cloth bag main part is restricted in the inside of support cylinder, and reverse operation is convenient cloth bag main part is dismantled.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a bag filter. Background Technology

[0002] A filter is a device that uses a cloth bag to filter dust. When using a filter, the raw material is fed into the support cylinder through the feed port, and then the raw material passes through the main body of the cloth bag, so that the raw material is filtered, thus facilitating the filtration of a certain amount of dust.

[0003] In their daily work, the inventors discovered that the filter still has at least the following problems: When using the filter, the raw material is fed into the support cylinder through the inlet, and then the raw material passes through the main body of the filter bag to be filtered. This facilitates the filtration of some dust from the raw material. However, in actual use, the filter bag is located inside the support cylinder, which makes it more troublesome to replace the filter bag. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bag filter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bag filter, comprising a support cylinder, a connecting cover hinged to the top of the support cylinder, an inlet at one end of the support cylinder, an outlet at the bottom of the support cylinder, valves on the surfaces of both the inlet and outlet, a bag body on the inner wall of the support cylinder, a connecting device inside the support cylinder, the connecting device comprising a fixing frame, the fixing frame being fixedly connected to the top of the inner wall of the support cylinder, a fixing ring on the inner wall of the fixing frame, the top of the fixing ring being fixedly connected to the bag opening of the bag body, and a first rubber ring fixedly connected to the inner wall of the fixing frame, the first rubber ring being disposed on the top of the fixing ring.

[0006] The effect achieved by the above components is as follows: when using the connecting device, the fixing ring is squeezed into the inside of the fixing frame, and then the first rubber ring is set on the top of the fixing ring. This makes it easy to restrict the main body of the bag inside the support cylinder, and the reverse operation makes it easy to disassemble the main body of the bag.

[0007] Preferably, a support ring is fixedly connected to the top of the inner wall of the support cylinder, a first damping rod is uniformly fixedly connected to the bottom of the support ring, a compression ring is fixedly connected to the bottom of the first damping rod, a first spring is sleeved on the surface of the first damping rod, one end of the first spring is fixedly connected to the bottom of the support ring, the bottom of the first spring is fixedly connected to the top of the compression ring, and the compression ring is disposed on the top of the fixed frame.

[0008] The effect achieved by the above components is that the compression ring is squeezed towards the fixed frame by the first spring, thereby squeezing the compression ring against the top of the fixed frame, which makes it easier to confine the fixed ring inside the fixed frame.

[0009] Preferably, a connecting rope is uniformly and fixedly connected to the top of the compression ring, the connecting rope is slidably inserted through the bottom of the support ring, and a sliding ring is fixedly connected to the top of the connecting rope.

[0010] The effect achieved by the above components is that the connecting rope can be manually pulled away from the support ring by the sliding ring, which makes it easier to control the squeezing ring away from the top of the fixed frame.

[0011] Preferably, a storage groove is evenly provided on one side of the inner wall of the support cylinder, and a limit rod is slidably connected to the inner wall of the storage groove. The limit rod is located at the top of the compression ring. A second damping rod is fixedly connected to one side of the inner wall of the storage groove. The end of the second damping rod away from the storage groove is fixedly connected to one end of the limit rod. A second spring is sleeved on the surface of the second damping rod. One end of the second spring is fixedly connected to one side of the inner wall of the storage groove, and the end of the second spring near the limit rod is fixedly connected to one end of the limit rod.

[0012] The effect achieved by the above components is that the limiting rod is pressed away from the storage groove by the second spring, thereby limiting the limiting rod to the top of the compression ring, which makes it easier to limit the compression ring to the top of the fixed frame.

[0013] Preferably, a sealing device is provided on one side of the connecting cover, the sealing device including a second rubber ring, the second rubber ring being fixedly connected to the top of the support cylinder.

[0014] The effect achieved by the above components is that when the sealing device is used, the connecting cover is pressed against the top of the support cylinder, which can achieve a certain sealing effect.

[0015] Preferably, a positioning ring is fitted on the surface of the connection between the connecting cover and the support cylinder, and a rubber ring is fixedly connected to the inner wall of the positioning ring, and the rubber ring is disposed at the connection between the connecting cover and the support cylinder.

[0016] The effect achieved by the above components is that the positioning ring is placed at the connection between the connecting cover and the support cylinder, and then the rubber ring is placed at the connection between the connecting cover and the support cylinder, which can achieve a certain sealing effect.

[0017] Preferably, a limiting ring is fixedly connected to the surface of the connecting cover, and the limiting ring is located at the bottom of the positioning ring.

[0018] The effect achieved by the above components is that the limiting ring can prevent the positioning ring from moving away from the connection between the connecting cover and the support cylinder.

[0019] Preferably, a locking ring is fixedly connected to the top surface of the support cylinder, a third damping rod is uniformly fixedly connected to the top of the locking ring, the top of the third damping rod is fixedly connected to the bottom of the positioning ring, a third spring is sleeved on the surface of the third damping rod, one end of the third spring is fixedly connected to the top of the locking ring, and the end of the third spring near the positioning ring is fixedly connected to the bottom of the positioning ring.

[0020] The effect achieved by the above components is that the positioning ring is squeezed away from the locking ring by the third spring, which makes it easier to restrict the positioning ring at the connection between the connecting cover and the support cylinder.

[0021] In this invention, by setting a connecting device, when using the connecting device, the fixing ring is squeezed into the inside of the fixing frame, and then the first rubber ring is set on the top of the fixing ring. This makes it easy to restrict the main body of the bag inside the support cylinder, and the reverse operation makes it easy to disassemble the main body of the bag. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a bag filter is provided for this utility model;

[0023] Figure 2 A three-dimensional structural schematic diagram of the novel extrusion ring proposed in this utility model is provided;

[0024] Figure 3 A three-dimensional structural schematic diagram of the novel rubber ring proposed in this utility model is provided.

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend: 1. Support cylinder; 2. Connecting cover; 3. Inlet; 4. Outlet; 5. Valve; 6. Bag body; 7. Connecting device; 701. Fixing frame; 702. Fixing ring; 703. First rubber ring; 704. Support ring; 705. First damping rod; 706. First spring; 707. Compression ring; 708. Connecting rope; 709. Sliding ring; 710. Storage groove; 711. Limiting rod; 712. Second damping rod; 713. Second spring; 8. Sealing device; 801. Second rubber ring; 802. Positioning ring; 803. Rubber ring; 804. Locking ring; 805. Third damping rod; 806. Third spring; 807. Limiting ring. Detailed Implementation

[0027] Example 1, such as Figure 1-4As shown, a bag filter has a connecting cover 2 hinged to the top of a support cylinder 1. One end of the support cylinder 1 is provided with a feed inlet 3, and the bottom of the support cylinder 1 is provided with a discharge outlet 4. Valves 5 are provided on the surfaces of both the feed inlet 3 and the discharge outlet 4. A bag body 6 is provided on the inner wall of the support cylinder 1, and a connecting device 7 is provided inside the support cylinder 1. When using the filter, the raw material is fed into the inside of the support cylinder 1 through the feed inlet 3, so that the raw material passes through the bag body 6 and is filtered, thus facilitating the filtration of a certain amount of dust from the raw material.

[0028] Reference Figure 2The connecting device 7 includes a fixing frame 701, which is fixedly connected to the top of the inner wall of the support cylinder 1. A fixing ring 702 is provided on the inner wall of the fixing frame 701, and the top of the fixing ring 702 is fixedly connected to the bag opening of the bag body 6. A first rubber ring 703 is fixedly connected to the inner wall of the fixing frame 701 and is located on top of the fixing ring 702. When using the connecting device 7, the fixing ring 702 is squeezed into the interior of the fixing frame 701, thereby placing the first rubber ring 703 on top of the fixing ring 702. This facilitates the confinement of the bag body 6 inside the support cylinder 1. Reverse operation facilitates the disassembly of the bag body 6. A support ring 704 is fixedly connected to the top of the inner wall of the support cylinder 1. A first damping rod 705 is evenly fixedly connected to the bottom of the support ring 704. A compression ring 707 is fixedly connected to the bottom of the first damping rod 705. A first spring 706 is sleeved on the surface of the first damping rod 705. One end of the first spring 706 is fixedly connected to the bottom of the support ring 704, and the bottom of the first spring 706 is fixedly connected to the top of the compression ring 707. The compression ring 707 is located on the top of the fixed frame 701. The compression ring 707 is pressed towards the fixed frame 701 by the first spring 706, thereby pressing the compression ring 707 against the top of the fixed frame 701. This design facilitates confining the fixing ring 702 within the fixing frame 701. Connecting ropes 708 are evenly fixedly connected to the top of the compression ring 707, and these ropes 708 are slidably inserted through the bottom of the support ring 704. A sliding ring 709 is fixedly connected to the top of the connecting rope 708. Manually pulling the connecting rope 708 away from the support ring 704 via the sliding ring 709 facilitates controlling the compression ring 707 away from the top of the fixing frame 701. A storage groove 710 is evenly provided on one side of the inner wall of the support cylinder 1. A limiting rod 711 is slidably connected to the inner wall of the storage groove 710. The limiting rod 711 is located at the top of the compression ring 707. A second damping rod 712 is fixedly connected to one side of the inner wall of the storage groove 710. The end of the second damping rod 712 away from the storage groove 710 is fixedly connected to one end of the limiting rod 711. A second spring 713 is sleeved on the surface of the second damping rod 712. One end of the second spring 713 is fixedly connected to one side of the inner wall of the storage groove 710. The end of the second spring 713 near the limiting rod 711 is fixedly connected to one end of the limiting rod 711. By pressing the limiting rod 711 away from the storage groove 710 through the second spring 713, the limiting rod 711 is restricted to the top of the compression ring 707. This makes it easier to restrict the compression ring 707 to the top of the fixed frame 701.

[0029] Reference Figure 3 and Figure 4A sealing device 8 is provided on one side of the connecting cover 2. The sealing device 8 includes a second rubber ring 801, which is fixedly connected to the top of the support cylinder 1. When the sealing device 8 is used, the connecting cover 2 is pressed against the top of the support cylinder 1, which can achieve a certain sealing effect. A positioning ring 802 is sleeved on the surface of the connection between the connecting cover 2 and the support cylinder 1. A rubber ring 803 is fixedly connected to the inner wall of the positioning ring 802. The rubber ring 803 is set at the connection between the connecting cover 2 and the support cylinder 1. By sleeved on the positioning ring 802 at the connection between the connecting cover 2 and the support cylinder 1, and then sleeved on the rubber ring 803 at the connection between the connecting cover 2 and the support cylinder 1, a certain sealing effect can be achieved. A limit ring 807 is fixedly connected to the surface of the connecting cover 2. The limit ring 807 is designed to... The positioning ring 807 is placed at the bottom of the positioning ring 802. It can prevent the positioning ring 802 from moving away from the connection between the connecting cover 2 and the support cylinder 1. The top surface of the support cylinder 1 is fixedly connected to the locking ring 804. The top of the locking ring 804 is evenly fixedly connected to the third damping rod 805. The top of the third damping rod 805 is fixedly connected to the bottom of the positioning ring 802. The surface of the third damping rod 805 is fitted with a third spring 806. One end of the third spring 806 is fixedly connected to the top of the locking ring 804. The end of the third spring 806 near the positioning ring 802 is fixedly connected to the bottom of the positioning ring 802. The positioning ring 802 is squeezed away from the locking ring 804 by the third spring 806, which makes it easier to restrict the positioning ring 802 at the connection between the connecting cover 2 and the support cylinder 1.

[0030] Working principle: When using the filter, the raw material is fed into the support cylinder 1 through the feed inlet 3, and then passes through the filter bag body 6, where it is filtered. This facilitates the filtration of a certain amount of dust. When using the connecting device 7, the fixing ring 702 is pressed into the fixing frame 701, and the first rubber ring 703 is placed on top of the fixing ring 702. The first spring 706 presses the compression ring 707 towards the fixing frame 701, thus pressing the compression ring 707 onto the top of the fixing frame 701. The second spring 713 presses the limiting rod 711 away from the receiving groove 710, thus limiting the limiting rod 711 to the top of the compression ring 707. This helps to confine the compression ring 707 to the top of the fixing frame 701, and thus helps to confine the fixing ring 702 inside the fixing frame 701. This makes it easy to confine the main body 6 of the bag inside the support cylinder 1. Reverse operation makes it easy to disassemble the main body 6 of the bag. The connecting rope 708 is pulled manually away from the support ring 704 by the sliding ring 709. This makes it easy to control the compression ring 707 away from the top of the fixed frame 701. When using the sealing device 8, when the connecting cover 2 is pressed against the top of the support cylinder 1, the positioning ring 802 is put on the connection between the connecting cover 2 and the support cylinder 1. The positioning ring 802 is pressed away from the locking ring 804 by the third spring 806. This makes it easy to confine the positioning ring 802 at the connection between the connecting cover 2 and the support cylinder 1. Then the rubber ring 803 is put on the connection between the connecting cover 2 and the support cylinder 1. This can achieve a certain sealing effect. The limiting ring 807 can prevent the positioning ring 802 from moving away from the connection between the connecting cover 2 and the support cylinder 1.

[0031] It should be noted that all damping rods in this case are telescopic dampers, which can absorb energy during the extension and retraction process.

Claims

1. A bag filter, comprising a support cylinder (1), characterized in that: The top of the support cylinder (1) is hinged with a connecting cover (2). One end of the support cylinder (1) is provided with a feed inlet (3). The bottom of the support cylinder (1) is provided with a discharge outlet (4). Valves (5) are provided on the surfaces of the feed inlet (3) and the discharge outlet (4). The inner wall of the support cylinder (1) is provided with a cloth bag body (6). The inside of the support cylinder (1) is provided with a connecting device (7). The connecting device (7) includes a fixing frame (701). The fixing frame (701) is fixedly connected to the top of the inner wall of the support cylinder (1). The inner wall of the fixing frame (701) is provided with a fixing ring (702). The top of the fixing ring (702) is fixedly connected to the bag opening of the cloth bag body (6). The inner wall of the fixing frame (701) is fixedly connected with a first rubber ring (703). The first rubber ring (703) is located on the top of the fixing ring (702).

2. A bag filter according to claim 1, characterized in that: A support ring (704) is fixedly connected to the top of the inner wall of the support cylinder (1). A first damping rod (705) is evenly fixedly connected to the bottom of the support ring (704). A compression ring (707) is fixedly connected to the bottom of the first damping rod (705). A first spring (706) is sleeved on the surface of the first damping rod (705). One end of the first spring (706) is fixedly connected to the bottom of the support ring (704). The bottom of the first spring (706) is fixedly connected to the top of the compression ring (707). The compression ring (707) is located on the top of the fixed frame (701).

3. A bag filter according to claim 2, characterized in that: The top of the compression ring (707) is uniformly and fixedly connected with a connecting rope (708), the connecting rope (708) is slidably inserted through the bottom of the support ring (704), and the top of the connecting rope (708) is fixedly connected with a sliding ring (709).

4. A bag filter according to claim 1, characterized in that: A storage groove (710) is evenly provided on one side of the inner wall of the support cylinder (1). A limit rod (711) is slidably connected to the inner wall of the storage groove (710). The limit rod (711) is set on the top of the compression ring (707). A second damping rod (712) is fixedly connected to one side of the inner wall of the storage groove (710). The end of the second damping rod (712) away from the storage groove (710) is fixedly connected to one end of the limit rod (711). A second spring (713) is sleeved on the surface of the second damping rod (712). One end of the second spring (713) is fixedly connected to one side of the inner wall of the storage groove (710). The end of the second spring (713) near the limit rod (711) is fixedly connected to one end of the limit rod (711).

5. A bag filter according to claim 1, characterized in that: A sealing device (8) is provided on one side of the connecting cover (2). The sealing device (8) includes a second rubber ring (801), which is fixedly connected to the top of the support cylinder (1).

6. A bag filter according to claim 1, characterized in that: A positioning ring (802) is fitted on the surface of the connection between the connecting cover (2) and the support cylinder (1). A rubber ring (803) is fixedly connected to the inner wall of the positioning ring (802). The rubber ring (803) is located at the connection between the connecting cover (2) and the support cylinder (1).

7. A bag filter according to claim 1, characterized in that: A limiting ring (807) is fixedly connected to the surface of the connecting cover (2), and the limiting ring (807) is located at the bottom of the positioning ring (802).

8. A bag filter according to claim 1, characterized in that: A locking ring (804) is fixedly connected to the top surface of the support cylinder (1). A third damping rod (805) is uniformly fixedly connected to the top of the locking ring (804). The top of the third damping rod (805) is fixedly connected to the bottom of the positioning ring (802). A third spring (806) is sleeved on the surface of the third damping rod (805). One end of the third spring (806) is fixedly connected to the top of the locking ring (804). The end of the third spring (806) near the positioning ring (802) is fixedly connected to the bottom of the positioning ring (802).