Special filter bag for severe working conditions

Abstract

The utility model provides a special filter bag for severe working conditions, which comprises a filter bag body, a plurality of inner rods are fixedly mounted on the inner side wall of the filter bag body, rotating seats are fixedly mounted at two ends of each inner rod, support rods are rotatably connected to the inner side walls of the rotating seats, and displacement rings are rotatably connected to the other ends of the support rods. The device has the advantages that the displacement rings slide in the displacement grooves in the two ends of the main rod, so that the supporting rods can be synchronously driven to rotate and unfold between the inner rod and the displacement rings, and when the displacement rings move to the tail end of the main rod, the supporting rods are in the horizontal state, and the supporting rods are not prone to falling off. The inner rod can be in a vertically unfolded state in the filter bag body, so that the filter bag body can be effectively supported and unfolded under the action of the displacement rings and the supporting rods at the bag opening and the bottom of the filter bag body, and the filter bag can be prevented from being folded in the use process under severe working conditions; and the filtering effect of the filter bag is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter bags, and in particular relates to a special filter bag for harsh working conditions. Background Art

[0002] Filter bags have excellent chemical stability and heat resistance. They are the highest performance representatives in the filter material industry and the most advanced performance varieties among all commonly used filter materials. They have reached a high level in terms of filtration efficiency and filtration accuracy. Bag-type dust removal filter materials are needed in industrial flue gas purification processes such as coal-fired boilers, waste incineration, steel smelting, and calcium carbide chemicals. At present, filter bags have the following common defects:

[0003] When the filter bag is used in harsh working conditions, the exhaust volume will increase and there will be more filter material in the gas. When the traditional filter bag is used in harsh working conditions, the high wind speed may cause the filter bag to fold, or the outside may fold during the filtration process, resulting in reduced filtering effect of the filter bag. When a bracket is added inside the filter bag, the traditional bracket is not easy to fold, which makes it difficult to store and transport the filter bag, thereby reducing the overall filtering effect and convenience of use of the filter bag. Utility Model Content

[0004] The purpose of the utility model is to provide a filter bag specially designed for harsh working conditions, aiming to solve the problem in the prior art that when used in harsh working conditions, the traditional filter bags may cause folding of the filter bags due to high wind speeds, or folding of the outside during the filtration process, resulting in reduced filtration effect of the filter bags.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A filter bag specially used in harsh working conditions comprises a filter bag body, a plurality of inner rods are fixedly mounted on the inner side wall of the filter bag body, a rotating seat is fixedly mounted on both ends of the plurality of inner rods, the inner side wall of the rotating seat is rotatably connected to a support rod, the other end of the support rod is rotatably connected to a displacement ring, the inner side wall of the displacement ring is slidably connected to a main rod, displacement grooves are provided on the inner walls at both ends of the main rod, and the displacement grooves are slidably connected to the inner side wall of the displacement ring.

[0007] As a preferred embodiment of the utility model, two upper screws and a lower screw are fixedly installed at both ends of the main rod, the bottom end of the upper screw is fixedly connected to the top end of the lower screw, and the top end of the upper screw and the bottom end of the lower screw are threadedly connected to the inner wall of the displacement ring.

[0008] As a preferred embodiment of the utility model, the bottom end of the main rod is rotatably connected to a driving rod, and the bottom end of the driving rod is fixedly mounted with an operating column.

[0009] As a preferred embodiment of the utility model, a main gear is fixedly mounted on the top end of the driving rod, and the outer side of the main gear is rotatably connected to the inner wall of the bottom end of the main rod.

[0010] As a preferred embodiment of the utility model, a secondary gear is fixedly mounted on the bottom end of the lower screw rod, the outer side of the secondary gear is meshed with the outer side of the main gear, and the outer side of the secondary gear is rotatably connected to the inner wall of the bottom end of the main rod.

[0011] As a preferred embodiment of the present invention, the inner wall of the bottom end of the filter bag body is fixedly connected to the outer side of the bottom end of the main rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) The displacement ring is set to slide inside the displacement groove at both ends of the main rod, so that the support rod can be synchronously driven to rotate and unfold between the inner rod and the displacement ring. When the displacement ring moves to the end position of the main rod, the support rod is in a horizontal state, and the inner rod can be in a vertically unfolded state inside the filter bag body, so that the filter bag body can be effectively supported and unfolded through the displacement ring and the support rod at the bag opening and bottom position of the filter bag body, thereby preventing the filter bag from folding during use in harsh working conditions, and effectively improving the filtering effect of the filter bag.

[0014] 2) The drive rod is arranged to facilitate operation and driving at the bottom end of the main rod, and the action between the main gear on the drive rod and the sub-gear on the lower screw rod makes it easier for the lower screw rod to drive the displacement ring to slide on the main rod. Since the threads on the upper screw rod and the lower screw rod are in a relative state, when the lower screw rod rotates to make the displacement ring at the bottom end of the main rod slide downward, the displacement ring at the top end of the main rod can slide upward synchronously when the upper screw rod rotates, thereby making it easier for the displacement ring to slide, and the filter bag body to be unfolded, folded and stowed, thereby improving the convenience of the overall filter bag transportation and folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the inner rod structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the displacement ring structure of the utility model;

[0019] Figure 4This is a schematic diagram of the internal structure of the main rod of the utility model;

[0020] Figure 5 This is a schematic diagram of the driving rod structure of the utility model.

[0021] In the figure: 1. filter bag body; 2. inner rod; 21. rotating seat; 3. support rod; 4. displacement ring; 5. main rod; 51. displacement groove; 52. upper screw; 53. lower screw; 54. sub-gear; 6. driving rod; 61. operating column; 62. main gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a filter bag specially used in harsh working conditions, comprising a filter bag body 1, a plurality of inner rods 2 are fixedly installed on the inner side wall of the filter bag body 1, a rotating seat 21 is fixedly installed at both ends of the plurality of inner rods 2, a support rod 3 is rotatably connected to the inner side wall of the rotating seat 21, a displacement ring 4 is rotatably connected to the other end of the support rod 3, a main rod 5 is slidably connected to the inner side wall of the displacement ring 4, displacement grooves 51 are opened on the inner walls at both ends of the main rod 5, and the displacement grooves 51 are slidably connected to the inner side wall of the displacement ring 4.

[0024] When in use, when the filter bag body 1 is used, the displacement ring 4 at the top of the main rod 5 can slide upward through the displacement groove 51, and the displacement ring 4 at the bottom of the main rod 5 can slide downward through the displacement groove 51, so that the displacement ring 4 can make the support rod 3 on it rotate while sliding up and down, and the other end of the support rod 3 rotates on the rotating seat 21 while the support rod 3 rotates, so that both ends of the inner rod 2 can be expanded outward by the rotation of the support rod 3, and then the filter bag body 1 can be driven by the inner rod 2 to perform an expansion operation, so that when the filter bag body 1 is in use, the filtering effect of the filter bag body 1 is increased. When the filter bag body 1 needs to be transported, the displacement ring 4 can also slide in the opposite direction inside the displacement groove 51, so that the support rod 3 on it is rotated to a state of being in contact with the outer side of the main rod 5, and the inner rod 2 also follows the support rod 3 to approach the displacement ring 4 and the main rod 5, and the filter bag body 1 is folded by the driving action of the inner rod 2, thereby reducing the space that may be occupied by the filter bag body 1 during transportation when there is an internal bracket in the filter bag body 1, and improving the convenience of use of the filter bag body 1.

[0025] Preferably, two upper screw rods 52 and a lower screw rod 53 are fixedly installed at both ends of the main rod 5, the bottom end of the upper screw rod 52 is fixedly connected to the top end of the lower screw rod 53, and the top end of the upper screw rod 52 and the bottom end of the lower screw rod 53 are threadedly connected to the inner wall of the displacement ring 4.

[0026] During specific use, when the displacement ring 4 needs to slide relatively on the main rod 5, the lower screw 53 can be rotated inside the main rod 5, so that the displacement ring 4 at the bottom end of the main rod 5 can slide toward the bottom end of the main rod 5 through the rotation of the lower screw 53. At the same time, since the threads of the lower screw 53 and the upper screw 52 are in a relative state, the upper screw 52 is driven to rotate while the lower screw 53 rotates, so that the displacement ring 4 at the position of the upper screw 52 can slide toward the top end of the main rod 5, and then the filter bag body 1 can be unfolded and supported by the relative sliding of the two displacement rings 4 on the main rod 5.

[0027] Preferably, the bottom end of the main rod 5 is rotatably connected to a driving rod 6 , and an operating column 61 is fixedly mounted on the bottom end of the driving rod 6 .

[0028] During specific use, when the lower screw 53 needs to be rotated on the main rod 5, the operating column 61 at the bottom end of the main rod 5 can be operated and rotated, so that the operating column 61 can drive the driving rod 6 at the bottom end of the main rod 5 to rotate inside it, and then the displacement ring 4 can be further slid on the main rod 5.

[0029] Preferably, a main gear 62 is fixedly mounted on the top end of the driving rod 6 , and the outer side of the main gear 62 is rotatably connected to the inner wall of the bottom end of the main rod 5 .

[0030] During specific use, when the driving rod 6 rotates at the bottom end of the main rod 5 through the operation of the operating column 61, the driving rod 6 can drive the main gear 62 on it to rotate inside the main rod 5, so that the displacement ring 4 can slide on the main rod 5 and be operated by the operating column 61.

[0031] Preferably, a secondary gear 54 is fixedly mounted on the bottom end of the lower screw rod 53 , the outer side of the secondary gear 54 is meshed with the outer side of the main gear 62 , and the outer side of the secondary gear 54 is rotatably connected to the inner wall of the bottom end of the main rod 5 .

[0032] During specific use, when the driving rod 6 drives the main gear 62 to rotate, it can act on the sub-gear 54 meshing with it on the outside, so that the sub-gear 54 can rotate quickly on the outside of the main gear 62, so that the lower screw rod 53 and the upper screw rod 52 can be driven by the sub-gear 54 to rotate inside the main rod 5, so that the displacement ring 4 can move the relative position at both ends of the main rod 5.

[0033] Preferably, the inner wall of the bottom end of the filter bag body 1 is fixedly connected to the outer side of the bottom end of the main rod 5 .

[0034] During specific use, the bottom end of the filter bag body 1 is fixed to the outer side of the main rod 5, so that the main rod 5 and the inner rod 2 and other structures inside the filter bag body 1 can be folded and retracted, and drive the filter bag body 1 to be folded, thereby reducing the space occupied by the filter bag body 1 during transportation and storage.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filter bag specially used in harsh working conditions, comprising a filter bag body (1), characterized in that: A plurality of inner rods (2) are fixedly mounted on the inner side wall of the filter bag body (1), and a rotating seat (21) is fixedly mounted on both ends of the plurality of inner rods (2). The inner side wall of the rotating seat (21) is rotatably connected to a support rod (3), and the other end of the support rod (3) is rotatably connected to a displacement ring (4). The inner side wall of the displacement ring (4) is slidably connected to a main rod (5), and displacement grooves (51) are provided on the inner walls at both ends of the main rod (5), and the displacement grooves (51) are slidably connected to the inner side wall of the displacement ring (4).

2. A filter bag for harsh working conditions according to claim 1, characterized in that: Two upper screw rods (52) and a lower screw rod (53) are fixedly mounted at both ends of the main rod (5), the bottom end of the upper screw rod (52) is fixedly connected to the top end of the lower screw rod (53), and the top end of the upper screw rod (52) and the bottom end of the lower screw rod (53) are threadedly connected to the inner wall of the displacement ring (4).

3. A filter bag for harsh working conditions according to claim 2, characterized in that: The bottom end of the main rod (5) is rotatably connected to a driving rod (6), and the bottom end of the driving rod (6) is fixedly mounted with an operating column (61).

4. A filter bag for harsh working conditions according to claim 3, characterized in that: A main gear (62) is fixedly mounted on the top end of the driving rod (6), and the outer side of the main gear (62) is rotatably connected to the inner wall of the bottom end of the main rod (5).

5. A filter bag for harsh working conditions according to claim 4, characterized in that: A secondary gear (54) is fixedly mounted on the bottom end of the lower screw rod (53), the outer side of the secondary gear (54) meshes with the outer side of the main gear (62), and the outer side of the secondary gear (54) is rotatably connected to the inner wall of the bottom end of the main rod (5).

6. The filter bag for harsh working conditions according to claim 1, characterized in that: The inner wall of the bottom end of the filter bag body (1) is fixedly connected to the outer side of the bottom end of the main rod (5).

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