Detachable filter cloth bag

Abstract

The utility model discloses a detachable filter cloth bag which comprises filter cloth and a flexible contact disassembly and assembly mechanism, an elastic band is sewn on the upper side of the filter cloth; the flexible contact disassembly and assembly mechanism comprises a positioning rubber ring, an outer sleeve hard supporting ring, an outer sleeve soft plastic ring, an inner supporting hard supporting ring and an inner supporting soft plastic ring, the positioning rubber ring is movably arranged on the upper side of the outer surface of the filter cloth in a sleeving mode, and the outer sleeve hard supporting ring is placed outside the filter cloth; the flexible contact disassembly and assembly mechanism comprises an outer sleeve hard supporting ring, an inner arc face of the outer sleeve hard supporting ring is fixedly connected with an outer sleeve soft plastic ring, an inner supporting hard supporting ring is placed on the upper side of the outer sleeve hard supporting ring, and an inner arc face of the inner supporting hard supporting ring is fixedly sleeved with an inner supporting soft plastic ring. According to the detachable filter cloth bag, the installation mode of the filter cloth bag is simple and convenient, and the problem that the filter cloth bag is torn apart can be effectively prevented after the filter cloth bag is installed.

Description

Technical Field

[0001] The utility model relates to the technical field of filter bags, in particular to a detachable filter bag. Background Technique

[0002] Filter bags have excellent chemical stability and heat resistance. They are representatives of the highest performance in the filter material industry and are also the highest-end varieties among all commonly used filter materials, reaching relatively high levels in terms of filtration efficiency and filtration accuracy. Commonly used filter materials include PE, PP, PTFE, PM IA, NMO, etc.

[0003] The filter bag is used together with a supporting filter. By using the system fluid pressure, the liquid is extruded through the filter bag to achieve the purpose of filtration. In the existing installation method of the filter bag, the installation ring at the upper end of the filter bag is usually screwed to a specified position by screws. Then, when the fluid passes through the filter bag, affected by the flow rate, the filter bag will be pulled backward in the direction of the flow, and the waste residue in the fluid passing through the filter bag is filtered.

[0004] However, there are some problems in the conventional installation method. For example, in the method of fixing the installation ring with screws, the installation ring needs to meet the requirements of preventing side leakage and other issues. The installation method is relatively cumbersome, which will cause the filter bag to be subjected to a large tearing force during high-flow operation. The screw connection will be subjected to a large tearing force and may be torn. Therefore, we propose a detachable filter bag. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a detachable filter bag with a simple installation method for the filter bag, which can effectively prevent the filter bag from being torn after installation, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a detachable filter bag, including a filter cloth and a flexible contact disassembly and assembly mechanism;

[0007] Filter cloth: An elastic band is sewn on the upper side thereof;

[0008] Flexible contact disassembly and assembly mechanism: It includes a positioning rubber ring, an outer hard support ring, an outer soft plastic ring, an inner hard support ring, and an inner soft plastic ring. The positioning rubber ring is movably sleeved on the outer surface of the upper side of the filter cloth. The outer hard support ring is placed outside the filter cloth. The inner arc surface of the outer hard support ring is fixedly connected with the outer soft plastic ring. The inner hard support ring is placed on the upper side of the outer hard support ring. The outer arc surface of the inner hard support ring is fixedly sleeved with the inner soft plastic ring. The installation method of the filter bag is simple, and the problem that the filter bag is torn can be effectively prevented after installation.

[0009] Further, the flexible contact disassembly and assembly mechanism further includes a first screw thread, a second screw thread, and a third screw thread. The first screw threads are evenly opened on the outer arc surface of the positioning rubber ring. The outer arc surface of the outer hard support ring is provided with evenly distributed second screw threads, and the four second screw threads all extend to the inner arc surface of the outer soft plastic ring. The inner arc surface of the inner hard support ring is provided with evenly distributed third screw threads, and the four third screw threads all extend to the outer arc surface of the inner soft plastic ring, realizing the function of flexibly fixing the filter bag.

[0010] Further, it further includes a mounting flange. The mounting flange is located above the inner hard support ring, and the lower surface of the mounting flange is provided with an inverted U-shaped docking groove, realizing the function of secondary quick installation.

[0011] Further, it further includes a fourth screw thread. The fourth screw threads are evenly opened on the outer arc surface of the inverted U-shaped docking groove, and the four fourth screw threads all extend to the inner arc surface of the inverted U-shaped docking groove. Self-tapping screws are placed on the upper side of the mounting flange, and the first screw thread, the second screw thread, the third screw thread, and the fourth screw thread are in one-to-one corresponding up-and-down positions, realizing the function of secondary installation.

[0012] Further, the positioning rubber ring is a polytetrafluoroethylene corrosion-resistant plastic ring, realizing the function of anti-corrosion of the positioning rubber ring.

[0013] Further, the outer hard support ring and the inner hard support ring are both stainless steel sheet metal support rings, realizing the function of external support.

[0014] Further, the outer soft plastic ring and the inner soft plastic ring are both TPR plastic rings, realizing the function of protecting the flexible contact.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The detachable filter bag has the following advantages:

[0016] Through the reverse peeling elastic band, the positioning rubber ring will be stuck inside the outer soft plastic ring. At this time, the inner hard support ring is inserted into the inner wall of the positioning rubber ring. At this time, part of the filter cloth will stay inside the hard support ring. At this time, the inner arc surface of the outer soft plastic ring and the outer arc surface of the inner soft plastic ring will clamp the outer surface of the filter cloth, realizing flexible contact and also quickly completing the installation of the filter bag. The installation method of the filter bag is simple, and the problem of the filter bag being torn can be effectively prevented after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structure diagram of the filter cloth of the present utility model;

[0019] Figure 3This is a partial structural schematic diagram of the flexible contact disassembly and assembly mechanism of the present utility model;

[0020] Figure 4 This is a structural schematic diagram of the positioning rubber ring and the first screw thread of the present utility model.

[0021] In the figure: 1 filter cloth, 2 elastic band, 3 flexible contact disassembly and assembly mechanism, 31 positioning rubber ring, 32 first screw thread, 33 outer hard support ring, 34 outer soft plastic ring, 35 second screw thread, 36 inner hard support ring, 37 inner soft plastic ring, 38 third screw thread, 4 mounting flange, 5 inverted U docking groove, 6 fourth screw thread, 7 self-tapping screw. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , this embodiment provides a technical solution: a detachable filter bag, including a filter cloth 1 and a flexible contact disassembly and assembly mechanism 3;

[0024] Filter cloth 1: An elastic band 2 is sewn on the upper side thereof. When the filter bag needs to be used, the filter cloth 1 can be manually picked up, and the filter cloth 1 is passed through the positioning rubber ring 31. At this time, the elastic band 2 can be manually peeled back;

[0025] Flexible contact disassembly and assembly mechanism 3: It includes a positioning rubber ring 31, an outer hard support ring 33, an outer soft plastic ring 34, an inner hard support ring 36, and an inner soft plastic ring 37. The positioning rubber ring 31 is movably sleeved on the upper side of the outer surface of the filter cloth 1. An outer hard support ring 33 is placed outside the filter cloth 1. The inner arc surface of the outer hard support ring 33 is fixedly connected with an outer soft plastic ring 34. An inner hard support ring 36 is placed above the outer hard support ring 33. The outer arc surface of the inner hard support ring 36 is fixedly sleeved with an inner soft plastic ring 37. The flexible contact disassembly and assembly mechanism 3 further includes a first screw thread 32, a second screw thread 35, and a third screw thread 38. The first screw thread 32 is evenly opened on the outer arc surface of the positioning rubber ring 31. The outer arc surface of the outer hard support ring 33 is provided with evenly distributed second screw threads 35. All four second screw threads 35 extend to the inner arc surface of the outer soft plastic ring 34. The inner arc surface of the inner hard support ring 36 is provided with evenly distributed third screw threads 38. All four third screw threads 38 extend to the outer arc surface of the inner soft plastic ring 37. It further includes a mounting flange 4. The mounting flange 4 is located above the inner hard support ring 36. The lower surface of the mounting flange 4 is provided with an inverted U-shaped docking groove 5. It further includes a fourth screw thread 6. The fourth screw thread 6 is evenly opened on the outer arc surface of the inverted U-shaped docking groove 5. All four fourth screw threads 6 extend to the inner arc surface of the inverted U-shaped docking groove 5. A self-tapping screw 7 is placed above the mounting flange 4. The first screw thread 32, the second screw thread 35, the third screw thread 38, and the fourth screw thread 6 are in one-to-one correspondence in the up-and-down position. The positioning rubber ring 31 is a polytetrafluoroethylene corrosion-resistant plastic ring. Both the outer hard support ring 33 and the inner hard support ring 36 are stainless steel sheet metal support rings. Both the outer soft plastic ring 34 and the inner soft plastic ring 37 are TPR plastic rings. The tightening force of the elastic band 2 will tighten the positioning rubber ring 31. At this time, manually pick up the filter cloth 1 and pass it through the outer hard support ring 33. At this time, the positioning rubber ring 31 will be stuck inside the outer soft plastic ring 34. Then manually pick up the inner hard support ring 36 and insert it into the inner wall of the positioning rubber ring 31. At this time, part of the filter cloth 1 will stay inside the hard support ring 36. At this time, the inner arc surface of the outer soft plastic ring 34 and the outer arc surface of the inner soft plastic ring 37 will clamp the outer surface of the filter cloth 1 to achieve flexible contact. After the installation is completed, the outer soft plastic ring 34 can be picked up and inserted into the inside of the inverted U-shaped docking groove 5. At this time, the self-tapping screw 7 can be sequentially screwed into the inside of the fourth screw thread 6 to complete the installation of the filter bag. Then the mounting flange 4 is installed at the designated work station through bolts.

[0026] The working principle of a detachable filter cloth bag provided by the utility model is as follows: When the filter cloth bag is needed, the filter cloth 1 can be manually picked up and passed through the positioning rubber ring 31. At this time, the elastic band 2 can be manually peeled back. The tightening force of the elastic band 2 will tighten the positioning rubber ring 31. At this time, manually pick up the filter cloth 1 and pass it through the outer hard support ring 33. At this time, the positioning rubber ring 31 will be stuck inside the outer soft plastic ring 34. Then manually pick up the inner support hard support ring 36 and insert it into the inner wall of the positioning rubber ring 31. At this time, a part of the filter cloth 1 will stay inside the hard support ring 36. At this time, the inner arc surface of the outer soft plastic ring 34 and the outer arc surface of the inner support soft plastic ring 37 will clamp the outer surface of the filter cloth 1 to achieve flexible contact. After the installation is completed, the outer soft plastic ring 34 can be picked up and inserted into the inside of the inverted U-shaped docking groove 5. At this time, the self-tapping screws 7 can be sequentially screwed into the inside of the fourth screw port 6 to complete the installation of the filter cloth bag. Then, the installation flange 4 can be installed at the designated working station through bolts.

[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A detachable filter bag, characterized in that: It includes a filter cloth (1) and a flexible contact disassembly and assembly mechanism (3); Filter cloth (1): An elastic band (2) is sewn on its upper side; Flexible contact disassembly and assembly mechanism (3): It includes a positioning rubber ring (31), an outer hard support ring (33), an outer soft plastic ring (34), an inner hard support ring (36) and an inner soft plastic ring (37). The positioning rubber ring (31) is movably sleeved on the upper side of the outer surface of the filter cloth (1). The outer hard support ring (33) is placed outside the filter cloth (1). The inner arc surface of the outer hard support ring (33) is fixedly connected with the outer soft plastic ring (34). The inner hard support ring (36) is placed on the upper side of the outer hard support ring (33). The outer arc surface of the inner hard support ring (36) is fixedly sleeved with the inner soft plastic ring (37).

2. The detachable filter bag according to claim 1, wherein: The flexible contact disassembly and assembly mechanism (3) further includes a first screw thread (32), a second screw thread (35) and a third screw thread (38). The first screw thread (32) is evenly opened on the outer arc surface of the positioning rubber ring (31). The outer arc surface of the outer hard support ring (33) is provided with evenly distributed second screw threads (35). The four second screw threads (35) all extend to the inner arc surface of the outer soft plastic ring (34). The inner arc surface of the inner hard support ring (36) is provided with evenly distributed third screw threads (38). The four third screw threads (38) all extend to the outer arc surface of the inner soft plastic ring (37).

3. The detachable filter bag according to claim 2, wherein: It further includes a mounting flange (4). The mounting flange (4) is located on the upper side of the inner hard support ring (36). The lower surface of the mounting flange (4) is provided with an inverted U-shaped docking groove (5).

4. The detachable filter cloth bag according to claim 3, wherein: It further includes a fourth screw thread (6). The fourth screw thread (6) is evenly opened on the outer arc surface of the inverted U-shaped docking groove (5). The four fourth screw threads (6) all extend to the inner arc surface of the inverted U-shaped docking groove (5). A self-tapping screw (7) is placed on the upper side of the mounting flange (4). The first screw thread (32), the second screw thread (35), the third screw thread (38) and the fourth screw thread (6) are in one-to-one corresponding up-and-down positions.

5. A detachable filter cloth bag according to claim 1, characterized in that: The positioning rubber ring (31) is a polytetrafluoroethylene corrosion-resistant plastic ring.

6. A detachable filter bag according to claim 1, characterized in that: Both the outer hard support ring (33) and the inner hard support ring (36) are stainless steel sheet metal support rings.

7. A detachable filter bag according to claim 1, characterized in that: Both the outer soft plastic ring (34) and the inner soft plastic ring (37) are TPR plastic rings.

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