Bag filter external frame for air inlet

Abstract

The bag filter external frame comprises a filter frame body, a rotary sealing ring is rotationally installed on the edge of one end of an installation ring groove, connecting hinges are installed on the edge of one end of a primary return air inlet and the edge of one end of a fresh air inlet, and an air inlet guide groove is formed in the other side of each connecting hinge in an overturning mode. A jet head is installed at the communicating position of the primary return air inlet and the filter frame body, a reset rotating shaft is installed on the edge of the upper end of the inner wall of the filter bag, and a sealing plate is installed on the other side of the reset rotating shaft. The bag filter external frame for the air inlet can drive the filter bag to perform one-way communication through the closing plate and the reset rotating shaft, filter material backflow is avoided, the filtering effect is good, double closing can be performed through the air inlet guide groove and the rotary closing ring, loosening is avoided, matrix ventilation can be performed through the air jet head at the primary air return inlet, and the air inlet is more uniform. The air mixing effect is good, the cover plate can be conveniently and rapidly opened and closed through the locking buckle block and the locking buckle groove, and maintenance and use are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to air filter technical field, concretely is a kind of bag filter external frame for air inlet. BACKGROUND

[0002] Bag filter can be used for intermediate filtration of air conditioning system to protect the next stage filter in system and system itself, and the air treated by the intermediate filter can be directly sent to user in places where air purification cleanliness requirement is not strict. The aluminum frame bag filter uses high-quality synthetic fiber or imported glass fiber as filter material, has good purification effect and is widely loved by consumers. Moreover, the bag filter has large effective filtration area, large dust capacity, small resistance and large ventilation.

[0003] The frame and filter core skeleton of the bag filter in the existing CN216572035U bag filter frame device can be reused, thereby avoiding waste and pollution, and the upper and lower surface flanges 16 of the filter outer frame 1 replace the flange 16 design at the filter bag skeleton, greatly saving cost, but there are deficiencies, the existing equipment has poor filtering effect, filtered dust can flow back, and the air inlet effect is poor, and maintenance is inconvenient, and the use effect is poor, so a bag filter external frame for air inlet is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a kind of bag filter external frame for air inlet to solve the problems of poor filtering effect of bag filter frame device mentioned in the above background art, backflow of filtered dust, poor air inlet effect and inconvenient maintenance and poor use effect.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of bag filter external frame for air inlet, including filter frame main part, the filter frame main part upper end is connected and is installed with a primary return air inlet, and the filter frame main part one side is connected and is installed with fresh air inlet, the filter frame main part front and back side cover installation has cover plate, and the filter frame main part front and back side edge rotation installation has locking buckle, the cover plate front side edge is equipped with locking slot, the primary return air inlet and fresh air inlet inner wall one end installation has installation ring groove, and installation ring groove inner wall plug-in installation has filter bag, the installation ring groove one end edge rotation installation has rotary closure ring, the primary return air inlet and fresh air inlet one end edge installation has connecting hinge, and connecting hinge other side flip installation has air inlet guide slot, the primary return air inlet and filter frame main part communication place installation has jet head, the filter bag inner wall upper end edge installation has reset shaft, and reset shaft other side installation has closure plate.

[0006] Preferably, the cover plate is sealingly inserted and installed with the filter frame body, and the cover plate is buckled and locked with the filter frame body through the locking buckle and the locking buckle groove.

[0007] Preferably, the air inlet guide groove inner wall is a funnel structure, and the air inlet guide groove is installed with the primary return air inlet and the fresh air inlet through the connecting hinge.

[0008] Preferably, the filter bag is positioned and inserted with the primary return air inlet and the fresh air inlet through the installation ring groove, and the filter bag is locked and closed with the installation ring groove through the rotating closure ring.

[0009] Preferably, the air injection head is vertically distributed with the filter frame body in a matrix, and the air injection head is a conical structure.

[0010] Preferably, the closing plate is reversely connected with the filter bag through the reset pivot.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: the bag filter external frame for the air inlet can drive the filter bag to be unidirectionally communicated through the closing plate and the reset pivot, avoid backflow of the filtered material, and has good filtering effect, and can be doubly closed through the air inlet guide groove and the rotating closure ring to avoid loosening, and the primary return air inlet can be matrix-ventilated through the air injection head, has good air mixing effect, and the cover plate is conveniently and quickly opened and closed through the locking buckle and the locking buckle groove, and convenient for maintenance and use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view of the bag filter external frame for the air inlet of the utility model;

[0013] Figure 2 It is a schematic view of the internal structure of the bag filter external frame for the air inlet of the utility model;

[0014] Figure 3 It is a schematic view of the filter bag inner wall structure of the bag filter external frame for the air inlet of the utility model;

[0015] Figure 4 It is a bag filter external frame for the air inlet of the utility model Figure 2 It is an enlarged view of A in the bag filter external frame for the air inlet of the utility model;

[0016] Figure 5 It is a bag filter external frame for the air inlet of the utility model Figure 2 It is an enlarged view of B in the bag filter external frame for the air inlet of the utility model;

[0017] Figure 6 It is a bag filter external frame for the air inlet of the utility model Figure 2 It is an enlarged view of C in the bag filter external frame for the air inlet of the utility model;

[0018] Figure 7 The utility model relates to a bag filter external frame for air inlet Figure 3 The enlarged view of D in the middle.

[0019] In the drawing: 1, filter frame main body, 2, primary return air inlet, 3, fresh air inlet, 4, cover plate, 5, connecting hinge, 6, air inlet guide groove, 7, filter bag, 8, locking buckle, 9, locking buckle groove, 10, rotating closure ring, 11, mounting ring groove, 12, air jet head, 13, closure plate, 14, reset pivot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-7 The utility model provides a technical scheme: a bag filter external frame for air inlet, comprising filter frame main body 1, primary return air inlet 2, fresh air inlet 3, cover plate 4, connecting hinge 5, air inlet guide groove 6, filter bag 7, locking buckle 8, locking buckle groove 9, rotating closure ring 10, mounting ring groove 11, air jet head 12, closure plate 13 and reset pivot 14, the primary return air inlet 2 is communicated and installed on the upper end of the filter frame main body 1, and the fresh air inlet 3 is communicated and installed on one side of the filter frame main body 1, the cover plate 4 is installed in the front and back of the filter frame main body 1, and the locking buckle 8 is rotatably installed on the edge of the filter frame main body 1, the cover plate 4 is sealingly inserted and installed with the filter frame main body 1, and the cover plate 4 is buckled and locked with the filter frame main body 1 through the locking buckle 8 and the locking buckle groove 9, so that the cover plate 4 is conveniently and quickly locked and opened, and convenient maintenance is used.

[0022] The locking buckle groove 9 is formed in the front edge of the cover plate 4, the mounting ring groove 11 is installed on one end of the inner wall of the primary return air inlet 2 and the fresh air inlet 3, the filter bag 7 is inserted and installed in the inner wall of the mounting ring groove 11, the filter bag 7 is positioned and inserted and installed with the primary return air inlet 2 and the fresh air inlet 3 through the mounting ring groove 11, and the filter bag 7 is locked and closed with the mounting ring groove 11 through the rotating closure ring 10, so that the filter bag 7 is conveniently and stably installed, and shaking is avoided.

[0023] The one-way air inlet 2 and the new air inlet 3 are installed with the connecting hinge 5 at one end edge, and the connecting hinge 5 is installed with the air inlet guide groove 6 at the other side, the inner wall of the air inlet guide groove 6 is in a funnel structure, and the air inlet guide groove 6 is installed with the one-way air inlet 2 and the new air inlet 3 through the connecting hinge 5 in a flip cover combination, so that the air inlet guide groove 6 has good air inlet effect and is convenient to open and close, and the filter bag 7 is convenient to replace and use.

[0024] The one-way air inlet 2 is installed with the air injection head 12 at the communication position of the filter frame body 1, the air injection head 12 is distributed in a matrix vertical position with the filter frame body 1, and the air injection head 12 is in a conical structure, so that the air injection head 12 can increase the air inlet wind pressure and has good air mixing effect, the filter bag 7 is installed with the reset rotating shaft 14 at the upper end edge of the inner wall, and the reset rotating shaft 14 is installed with the closing plate 13 at the other side, and the closing plate 13 is connected with the filter bag 7 through the reset rotating shaft 14 in a reset flip, so that the filter bag 7 can be used for one-way air inlet and avoids dust backflow.

[0025] Working principle: when the bag filter external frame for the air inlet is used, the device is combined and installed first, then air is guided into the one-way air inlet 2 and the new air inlet 3 through the air inlet guide groove 6, then high-efficiency air mixing is performed in the filter frame body 1 through the air injection head 12, when air inlet, the closing plate 13 can be opened through the reset rotating shaft 14 for air inlet filtering, when air inlet is completed, the closing plate 13 can be automatically closed through the reset rotating shaft 14 to avoid backflow, when the filter bag 7 needs to be replaced, the air inlet guide groove 6 is opened through the connecting hinge 5, then the filter bag 7 is inserted, combined, disassembled, when the inner wall of the filter frame body 1 needs to be repaired and cleaned, the locking buckle 8 is rotated to be unlocked, then the cover plate 4 is opened, and the process is directly entered, which is the use process of the bag filter external frame for the air inlet.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bag filter external frame for air inlet, comprising a filter frame body (1), a primary return air inlet (2) is installed in communication with the upper end of the filter frame body (1), and a fresh air inlet (3) is installed in communication with one side of the filter frame body (1), characterized in that: The filter frame body (1) is provided with a cover plate (4) on the front and back sides, and the filter frame body (1) is provided with a locking buckle (8) on the front and back edges, the cover plate (4) is provided with a locking buckle groove (9) on the front edge, the inner wall of the primary return air inlet (2) and the fresh air inlet (3) is provided with a mounting ring groove (11), and the mounting ring groove (11) is provided with a filter bag (7) on the inner wall, the mounting ring groove (11) is provided with a rotating sealing ring (10) on one end edge, the primary return air inlet (2) and the fresh air inlet (3) are provided with a connecting hinge (5) on one end edge, and the connecting hinge (5) is provided with an air inlet guide groove (6) on the other side, the primary return air inlet (2) is provided with a jet head (12) at the communication part of the filter frame body (1), the filter bag (7) is provided with a reset shaft (14) on the inner wall of the upper end edge, and the reset shaft (14) is provided with a sealing plate (13) on the other side.

2. A baghouse outer frame for an air inlet according to claim 1, wherein: The cover plate (4) is sealingly inserted into the filter frame body (1), and the cover plate (4) is locked and installed with the filter frame body (1) through the locking buckle (8) and the locking buckle groove (9).

3. A baghouse outer frame for an air inlet according to claim 2, wherein: The inner wall of the air inlet guide groove (6) is in a funnel structure, and the air inlet guide groove (6) is reversely and coveringly installed with the primary return air inlet (2) and the fresh air inlet (3) through the connecting hinge (5).

4. A baghouse outer frame for an air inlet according to claim 3, wherein: The filter bag (7) is positioned and inserted into the primary return air inlet (2) and the fresh air inlet (3) through the mounting ring groove (11), and the filter bag (7) is lockingly and coveringly installed with the mounting ring groove (11) through the rotating sealing ring (10).

5. A baghouse outer frame for an air inlet according to claim 4, wherein: The jet head (12) is vertically distributed with the filter frame body (1) in a matrix, and the jet head (12) is in a conical structure.

6. A baghouse outer frame for an air inlet according to claim 5, wherein: The sealing plate (13) is reversely connected with the filter bag (7) through the reset shaft (14).

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