Length-variable bag cage for dust collector

Abstract

The utility model discloses a variable-length bag cage of a dust collector, and belongs to the technical field of bag type dust collectors. The variable-length dust collector bag cage comprises a filter bag and a telescopic framework, and the filter bag is fixedly connected to the outer side of the telescopic framework in a sleeving mode; according to the utility model, through the annular array arrangement of the electric telescopic mechanism and the plurality of limiting round rods, the structural stability of the bag cage is enhanced, the telescopic function of the filter bag is realized, the uniform distribution of airflow is ensured, the overall performance of the dust collector is improved, and the special connection design of the limiting round rods and the annular hoop I ensures the stability of the bag cage in the telescopic process; the length of the filter bag can be freely adjusted according to different dust concentrations, the dust removal efficiency is improved, resource waste is reduced, through the design, the dust remover bag cage can better adapt to different dust environments, accurate dust removal is achieved, the filtering efficiency is improved, and the limitation of a traditional fixed-length filter bag in treating dust of different concentrations is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, in particular to a dust collector bag cage with variable length. Background Art

[0002] The dust collector bag cage is an important component used to support the dust collector filter bag. Its role is mainly reflected in two aspects. First, the dust collector bag cage can maintain the shape of the filter bag stable, prevent the filter material from deforming or collapsing under the action of high-speed airflow, thereby ensuring the normal operation and filtering effect of the filter bag; second, the dust collector bag cage helps to evenly distribute the airflow, avoid the situation where the airflow is too large or too small locally, and improve the filtering efficiency and working stability of the dust collector.

[0003] Traditional dust collector bag cage designs are often limited to fixed lengths, which is inadequate when dealing with dust of varying concentrations. When the dust concentration is high, fixed-length bag cages are difficult to fully capture, resulting in poor dust removal effects; on the contrary, when the dust concentration is low, overly long bag cages are redundant, which not only wastes resources, but may also affect the overall performance of the dust collector. Therefore, it is urgent to improve the existing dust collector bag cages. We urgently need to develop a retractable bag cage design to adapt to dust environments of varying concentrations, improve dust removal efficiency, and reduce resource waste. Utility Model Content

[0004] The purpose of the present invention is to provide a dust collector bag cage with a variable length to solve the problems raised in the background technology.

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

[0006] A variable-length dust collector bag cage comprises: a filter bag and a telescopic frame, the filter bag is sleeved and fixed on the outer side of the telescopic frame, the telescopic frame comprises an annular hoop 2, an annular hoop 1, and an annular hoop 3 which are arranged in sequence from top to bottom, two groups of electric lifting and retracting mechanisms are connected between the annular hoop 1 and the annular hoop 2, two groups of electric lifting and retracting mechanisms are connected between the annular hoop 1 and the annular hoop 3, annular slide grooves are fixed on the lower side of the annular hoop 2 and the upper side of the annular hoop 3, the annular slide grooves are adapted to the electric lifting and retracting mechanisms, the movable end of the electric lifting and retracting mechanism is slidably connected in the annular slide grooves, a plurality of limiting round rods are fixed on the lower side of the annular hoop 2, a plurality of limiting round rods are fixed on the upper side of the annular hoop 3, the limiting round rods penetrate the annular hoop 1 in the vertical direction and maintain a sliding connection with the annular hoop 1.

[0007] Furthermore, the electric lifting and retracting mechanism and the plurality of limiting round rods are arranged in a circular array with the axis of the telescopic frame as the center.

[0008] Furthermore, the filter bag is fixedly connected to the outer sides of the annular hoop one, the annular hoop two and the annular hoop three respectively through rivets.

[0009] Furthermore, the annular hoop is penetrated with a plurality of circular holes, the circular holes are matched with the limiting circular rods, and the limiting circular rods penetrate the circular holes in the vertical direction and maintain sliding connection with the circular holes in the vertical direction.

[0010] Furthermore, the end of the limiting round rod is connected with a bolt through a thread, and the outer diameter of the bolt is larger than the inner diameter of the round hole.

[0011] Furthermore, a support is provided on the electric lifting and retracting mechanism, and a connecting rod and an electric telescopic rod are rotatably connected in the support. Two connecting rods are symmetrically arranged with the electric telescopic rod as the center, and the upper ends of the two connecting rods are rotatably connected to a scissor-type lifting frame. The movable rod at the power output end of the electric telescopic rod is hinged to the cross node at the bottom of the scissor-type lifting frame. The two rods at the top of the scissor-type lifting frame are rotatably connected with sliding rods, and the sliding rods are slidably connected in the annular slide groove.

[0012] Furthermore, the support is fixedly connected to the annular hoop via a fixing plate.

[0013] Compared with the prior art, the utility model provides a dust collector bag cage with variable length, which has the following beneficial effects:

[0014] The utility model strengthens the structural stability of the bag cage and realizes the telescopic function of the filter bag, ensures uniform airflow distribution, and improves the overall performance of the dust collector through the electric lifting and retracting mechanism and the circular array arrangement of multiple limiting round rods, and the special connection design of the limiting round rods and the annular hoop ensures the stability of the bag cage during the expansion and contraction process, so that the length of the filter bag can be freely adjusted according to different dust concentrations, thereby improving the dust removal efficiency and reducing resource waste. Through this design, the dust collector bag cage can better adapt to different dust environments, realize precise dust removal, improve filtration efficiency, and effectively solve the limitations of traditional fixed-length filter bags when dealing with dust of different concentrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a dust collector bag cage with a variable length proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a variable-length dust collector bag cage proposed by the utility model;

[0017] Figure 3 A schematic diagram of a telescopic skeleton structure of a dust collector bag cage with a variable length proposed by the utility model;

[0018] Figure 4This is a schematic diagram of the exploded structure of a telescopic frame of a dust collector bag cage with a variable length proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of an electric lifting and retracting mechanism of a dust collector bag cage with a variable length proposed by the utility model;

[0020] Figure 6 A variable length dust collector bag cage is provided in the utility model. Figure 3 Schematic diagram of the structure of part A;

[0021] Figure 7 A variable length dust collector bag cage is provided in the utility model. Figure 3 Schematic diagram of the structure of part B.

[0022] In the figure: 1, filter bag; 11, rivet; 2, annular hoop 1; 21, round hole; 3, annular hoop 2; 4, annular hoop 3; 5, electric lifting and retracting mechanism; 51, support; 511, fixing plate; 52, connecting rod; 53, electric telescopic rod; 54, scissor-type lifting frame; 55, sliding rod; 6, limiting round rod; 61, bolt; 7, annular slide groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Embodiment 1:

[0025] Reference Figure 1-7A variable-length dust collector bag cage comprises: a filter bag 1 and a telescopic frame, the filter bag 1 is sleeved and fixed on the outside of the telescopic frame, the telescopic frame comprises an annular hoop 2 3, an annular hoop 1 2, and an annular hoop 3 4 arranged in sequence from top to bottom, two groups of electric lifting and shrinking mechanisms 5 are connected between the annular hoop 1 2 and the annular hoop 2 3, two groups of electric lifting and shrinking mechanisms 5 are connected between the annular hoop 1 2 and the annular hoop 3 4, an annular slide groove 7 is fixed on the lower side of the annular hoop 2 3 and the upper side of the annular hoop 3 4, the annular slide groove 7 is adapted to the electric lifting and shrinking mechanism 5, the movable end of the electric lifting and shrinking mechanism 5 is slidably connected in the annular slide groove 7, a plurality of limiting round rods 6 are fixed on the lower side of the annular hoop 2 3, a plurality of limiting round rods 6 are fixed on the upper side of the annular hoop 3 4, the limiting round rod 6 penetrates the annular hoop 1 2 in the vertical direction and maintains a sliding connection with the annular hoop 1 2.

[0026] like Figure 3 As shown, the electric lifting and retracting mechanism 5 and a plurality of limiting round rods 6 are arranged in a circular array with the axis of the telescopic frame as the center; by arranging the electric lifting and retracting mechanism 5 and a plurality of limiting round rods 6 in a circular array between the annular hoop 1 2, the annular hoop 2 3, and the annular hoop 3 4, the force stability of the telescopic frame is effectively enhanced, the structural strength of the telescopic frame is improved, and it helps the filter bag 1 to evenly distribute the airflow, avoiding the situation where the airflow is locally too large or too small.

[0027] like Figure 1 As shown, the filter bag 1 is fixedly connected to the outer sides of the annular hoop 1 2 , the annular hoop 2 3 , and the annular hoop 3 4 respectively through rivets 11 . Embodiment 2:

[0028] The difference between this embodiment and embodiment 1 is that:

[0029] like Figure 4 As shown, the annular hoop 2 is penetrated with a plurality of circular holes 21, the circular holes 21 are adapted to the limiting circular rod 6, the limiting circular rod 6 penetrates the circular holes 21 along the vertical direction and maintains a sliding connection with the circular holes 21 along the vertical direction.

[0030] like Figure 4 As shown, the end of the limiting round rod 6 is connected with a bolt 61 through a thread, and the outer diameter of the bolt 61 is larger than the inner diameter of the circular hole 21; the setting of the bolt 61 can prevent the limiting round rod 6 from escaping from the constraint of the circular hole 21 during the sliding process on the circular hole 21 along the vertical direction, so that the annular hoop 2 3 and the annular hoop 3 4 on the telescopic frame can only be telescoped within the maximum extension length, thereby ensuring the telescopic stability of the telescopic frame.

[0031] A support 51 is provided on the electric lifting and retracting mechanism 5, and a connecting rod 52 and an electric telescopic rod 53 are rotatably connected in the support 51. Two connecting rods 52 are symmetrically arranged with the electric telescopic rod 53 as the center. The upper ends of the two connecting rods 52 are rotatably connected to a scissor-type lifting frame 54. The movable rod at the power output end of the electric telescopic rod 53 is hinged to the cross node at the bottom of the scissor-type lifting frame 54. The two rods at the top of the scissor-type lifting frame 54 are rotatably connected with sliding rods 55, and the sliding rod 55 is slidably connected in the annular slide groove 7.

[0032] The support 51 is fixedly connected to the annular hoop 2 via a fixing plate 511.

[0033] Working principle: When assembling the telescopic skeleton, the utility model first welds the limiting round rod 6 and the annular slide groove 7 to the designated position on the lower side of the annular hoop 2 3 and the designated position on the upper side of the annular hoop 3 4, respectively, and then fixes the integrated structure composed of the support 51, the connecting rod 52, the electric telescopic rod 53, and the scissor-type lifting frame 54 to the upper and lower sides of the annular hoop 1 2 through the fixing plate 511, and sequentially passes through the designated circular holes 21 on the annular hoop 1 2. The end of the limiting round rod 6 is limited by the threaded connection relationship between the bolt 61 and the limiting round rod 6, and then the upper slide rod 55 is installed on the two rods at the top of the scissor-type lifting frame 54, as shown in FIG. Figure 6 As shown, the slide rod 55 is kept in sliding connection with the annular slide groove 7, so that the installation and fixation of the telescopic frame is realized. Finally, as shown in Figure 1 As shown, the filter bag 1 is connected and fixed to the outer sides of the annular hoop 1 2, the annular hoop 2 3, and the annular hoop 3 4 respectively by a plurality of rivets 11, that is, the installation and fixation of the filter bag 1 on the outer side of the telescopic frame is completed. The filter bag 1 is made of various materials, and the common ones are polyester fiber, polypropylene, nylon, glass fiber and polytetrafluoroethylene, etc., but not limited to any one material, and these materials all have good wear resistance, tensile strength and temperature resistance.

[0034] During use, when the dust concentration changes and the elongation of the filter bag 1 needs to be adjusted, the electric telescopic rods 53 on the upper and lower electric lifting and retracting mechanisms 5 of the annular hoop 2 can be simultaneously started by an external switch, such as Figure 5 As shown, when the movable rod at the movable end of the electric telescopic rod 53 is extended or shortened, the scissor-type lifting frame 54 begins to extend or contract, and the sliding rod 55 slides toward or away from each other in the annular slide groove 7, and the limiting round rod 6 always maintains a sliding connection with the round hole 21 in the vertical direction, so that the annular hoop 1 2 and the annular hoop 3 4 on the lower side of the annular hoop 2 3 can move downward and extend or move upward and shorten successively, and simultaneously change the length of the outer filter bag 1 to better cope with the dust treatment requirements of different concentrations. When the dust concentration is high, the filter bag 1 is extended to fully capture the dust. When the dust concentration is low, the filter bag 1 is contracted to reduce the waste of resources, thereby extending the service life of the filter bag 1.

Claims

1. A dust collector bag cage with variable length, comprising: A filter bag (1) and a telescopic frame, characterized in that the filter bag (1) is sleeved and fixed on the outer side of the telescopic frame, the telescopic frame comprises an annular hoop 2 (3), an annular hoop 1 (2), and an annular hoop 3 (4) arranged in sequence from top to bottom, two sets of electric lifting and retracting mechanisms (5) are connected between the annular hoop 1 (2) and the annular hoop 2 (3), two sets of electric lifting and retracting mechanisms (5) are connected between the annular hoop 1 (2) and the annular hoop 3 (4), and the lower side of the annular hoop 2 (3) is provided with a plurality of electric lifting and retracting mechanisms (5). An annular slide groove (7) is fixed on the upper side of the annular hoop three (4), the annular slide groove (7) is compatible with the electric lifting and retracting mechanism (5), and the movable end of the electric lifting and retracting mechanism (5) is slidably connected in the annular slide groove (7), a plurality of limiting round rods (6) are fixed on the lower side of the annular hoop two (3), and a plurality of limiting round rods (6) are fixed on the upper side of the annular hoop three (4), and the limiting round rods (6) penetrate the annular hoop one (2) in the vertical direction and maintain a slidable connection with the annular hoop one (2).

2. A variable length dust collector bag cage according to claim 1, characterized in that: The electric lifting and retracting mechanism (5) and the plurality of limiting round rods (6) are arranged in a ring array with the axis of the telescopic frame as the center.

3. A variable length dust collector bag cage according to claim 1, characterized in that: The filter bag (1) is fixedly connected to the outer sides of the first annular hoop (2), the second annular hoop (3) and the third annular hoop (4) respectively through rivets (11).

4. A variable length dust collector bag cage according to claim 1, characterized in that: The annular hoop (2) is provided with a plurality of circular holes (21), the circular holes (21) being matched with the limiting circular rods (6), the limiting circular rods (6) penetrating the circular holes (21) in the vertical direction and maintaining a sliding connection with the circular holes (21) in the vertical direction.

5. A variable length dust collector bag cage according to claim 4, characterized in that: The end of the limiting round rod (6) is connected to a bolt (61) via a thread, and the outer diameter of the bolt (61) is greater than the inner diameter of the round hole (21).

6. A variable length dust collector bag cage according to claim 1, characterized in that: The electric lifting and retracting mechanism (5) is provided with a support (51), and a connecting rod (52) and an electric telescopic rod (53) are rotatably connected in the support (51), and two connecting rods (52) are arranged symmetrically with the electric telescopic rod (53) as the center, and the upper ends of the two connecting rods (52) are rotatably connected to a scissor-type lifting frame (54), and the movable rod at the power output end of the electric telescopic rod (53) is hinged to the cross node at the bottom of the scissor-type lifting frame (54), and the two rods at the top of the scissor-type lifting frame (54) are both rotatably connected to the sliding rod (55), and the sliding rod (55) is slidably connected in the annular sliding groove (7).

7. A variable length dust collector bag cage according to claim 6, characterized in that: The support (51) is fixedly connected to the annular hoop 1 (2) via a fixing plate (511).

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