Rapid extraction tool for envelope type dust removal filter bag

Abstract

The utility model discloses a rapid extraction tool for an envelope type dust removal filter bag, and belongs to the technical field of pulse-jet filter bag type dust removers. The fast extraction tool for the envelope type dust removal filter bag comprises a tension spring, a first clamping rod and a second clamping rod, the first clamping rod and the second clamping rod are connected in sequence, and the first clamping rod and the second clamping rod are oppositely arranged and are connected through the tension spring; the first clamping rod comprises a first clamping head, an outer clamping rod, a limiting rod and a thumb holding rod; the second clamping rod comprises a second clamping head, an inner clamping rod and a four-finger holding rod; the limiting rod is longitudinally arranged at one end, in the length direction, of the outer clamping rod, one end of the thumb holding rod is connected with the limiting rod, the other end of the thumb holding rod is hinged to the second clamping rod, and the hinged position is located at the joint of the inner clamping rod and the four-finger holding rod. The length of the four-finger holding rod is larger than the distance between the outer clamping rod and the inner clamping rod and smaller than the length of the thumb holding rod. The envelope type dust removal filter bag can be quickly extracted, and the problem that the extraction efficiency of the envelope type dust removal filter bag is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse jet filter bag type dust collectors, in particular to an envelope type dust filter bag quick extraction tool. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In cigarette factories, pulse-jet bag-type dust collectors are dry physical filtration and purification devices used to remove tobacco dust. They play an important role in tobacco collection and waste gas treatment. The filter bags commonly used in pulse-jet bag-type dust collectors at cigarette factory dust removal stations are flat envelope-type filter bags.

[0004] After the pulse jet bag filter has been running for a period of time, a deposit of tobacco dust will form on the surface of the envelope filter bag, blocking the pores of the filter bag and causing the energy efficiency of the filter bag to decrease. It is necessary to regularly remove the old filter bags in the dust collector and replace them with new ones.

[0005] There are usually 160 filter bags in a dust removal box. Due to the lack of special tools, operators can only pull them out by hand, which is a labor-intensive and inefficient operation. The dust deposition layer on the surface of the filter bag is usually 2 to 3 mm thick, and the filter bag will deform and loosen due to long-term exposure to compressed air. Therefore, the vertical cross-sectional width between the filter bag and the deposition layer is usually larger than the width of the filter bag installation hole, resulting in large extraction resistance. Under the action of the extraction resistance, the filter bag and the bracket on which the filter bag is placed are easily separated, requiring repeated extraction. At the same time, the operator may use too much force and lose his hand during the above extraction process. If the hand is scratched by the metal edge and comes into contact with harmful dust, it will cause health hazards to the human body.

[0006] The utility model patent with patent application number 202321312886.4 discloses a device for removing filter bags from a cylindrical dust collector, which includes a frame, a power structure, a push rod and a push block. The frame includes a bottom plate, a rectangular groove is concave in the bottom plate, and a plurality of spaced limit blocks and U-shaped auxiliary rings are vertically arranged on the bottom plate, and the limit blocks clamp the spring expansion ring. By adopting the above technical solution, the power mechanism mechanizedly controls the push block to squeeze the spring expansion ring to the U-shaped auxiliary ring, solving the problem that it is difficult for operators to remove the cylindrical filter bag and the spring expansion ring structure from the flower plate and raise the flower plate hole.

[0007] The utility model patent with patent application number 202020110971.2 discloses a dust filter bag removal device for removing the dust filter bag mounted on the bag cage in the dust removal equipment. The dust filter bag removal device includes a bracket and a bag collection handle, wherein the bag collection handle is operably pivoted on the bracket. Two reeling fork rods are arranged side by side at intervals at one end of the bag collection handle, and the bag tail end of the dust filter bag can be clamped in the middle; the two reeling fork rods are arranged parallel to the pivot axis of the bag collection handle, and the dust filter bag can be dragged away from the bag cage as the bag collection handle rotates, and the dust filter bag can be rolled up on the bag collection handle; thereby facilitating the improvement of the efficiency of dust filter bag removal.

[0008] In summary, although some dust filter bag removal devices have been produced in the prior art, they are mainly for cylindrical filter bags. The structure and internal support frame of the envelope-type dust filter bag are completely different from those of the cylindrical filter bag, making it impossible to directly apply to the extraction of the envelope-type dust filter bag. Utility Model Content

[0009] In view of the shortcomings of the prior art, the purpose of the embodiment of the utility model is to provide an envelope-type dust filter bag quick extraction tool. The extraction tool is designed according to the structural characteristics of the envelope-type dust filter bag, thereby improving the extraction efficiency of the envelope-type dust filter bag, conforming to ergonomic principles, and being convenient for operators to use.

[0010] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0011] An envelope-type dust filter bag quick extraction tool comprises a tension spring and a first clamping rod and a second clamping rod connected in sequence, wherein the first clamping rod and the second clamping rod are arranged opposite to each other to form a clamping space for the envelope-type dust filter bag, and the first clamping rod and the second clamping rod are connected by the tension spring;

[0012] The first clamping rod comprises a first clamping head, an outer clamping rod, a limiting rod and a thumb gripping rod connected in sequence, and the second clamping rod comprises a second clamping head, an inner clamping rod and a four-finger gripping rod connected in sequence; the limiting rod is longitudinally arranged at one end of the outer clamping rod along the length direction, one end of the thumb gripping rod is connected to the limiting rod, and the other end of the thumb gripping rod is hinged to the second clamping rod, and the hinged part is located at the connection between the inner clamping rod and the four-finger gripping rod;

[0013] The outer clamping rod and the inner clamping rod are arranged opposite to each other, and the length of the four-finger gripping rod is greater than the distance between the outer clamping rod and the inner clamping rod, and is less than the length of the thumb gripping rod.

[0014] By adopting the above technical solution, when there is no force, the tension spring will pull back the inner clamp rod. After pulling back to a certain angle, the limit rod will block the rotation of the four-finger grip rod to limit the tension of the tension spring, so that the clamping head of the outer clamp rod and the inner clamp rod are at a certain distance; at this time, the handheld tool is deepened to insert the clamping head into the gap between the bag opening of the filter bag and the wall panel, and the four fingers and thumb simultaneously hold the four-finger grip rod and the thumb grip rod, and pull the tool to quickly pull out the dust filter bag together with its internal support frame, thereby improving the extraction efficiency of the envelope-type dust filter bag, and it is stable and convenient to use.

[0015] Furthermore, the inner clamping rod comprises a first rod body, a second rod body and a third rod body connected in sequence, the first rod body and the third rod body are arranged in parallel, and the second rod body is longitudinally arranged between the first rod body and the third rod body;

[0016] A connecting rod is vertically arranged on the third rod body, and the connecting rod is on the opposite side of the second rod body; one end of the tension spring is connected to the connecting rod, and the other end of the tension spring is connected to the thumb grip.

[0017] By adopting the above technical solution, the first rod body, the second rod body and the third rod body form a Z-shaped structure, and can rotate horizontally under the action of the tension spring when not under force, so as to facilitate the extraction tool to extend between the envelope-type dust filter bag and the dust collector inner bin to achieve quick clamping of the bag opening.

[0018] Furthermore, the outer clamping rod includes a first hollow rod and a first solid rod, the first hollow rod is sleeved on the first solid rod, and the first hollow rod is slidably connected to the first solid rod;

[0019] The inner clamping rod comprises a second hollow rod and a second solid rod, the second hollow rod is sleeved on the second solid rod, and the second hollow rod is slidably connected to the second solid rod.

[0020] By adopting the above technical solution, the matching position of the hollow rod and the solid rod mounting holes can be adjusted according to the length of the extended end of different types of support frames, and the overall length of the rod can be adjusted to suit different models of envelope-type dust filter bags.

[0021] Preferably, the first hollow rod and the first solid rod are each provided with a plurality of first mounting holes equidistantly spaced along the length direction, and the second hollow rod and the second solid rod are each provided with a plurality of second mounting holes equidistantly spaced along the length direction.

[0022] By adopting the above technical solution, the bolt passes through the mounting hole and is fastened in cooperation with the nut, so that the hollow rod and the solid rod are firmly mounted.

[0023] Furthermore, third clamps are symmetrically arranged on both sides of the first clamp, and fourth clamps are symmetrically arranged on both sides of the second clamp.

[0024] By adopting the above technical solution, a chuck is added to increase the contact area between the extraction tool and the convex ring of the filter bag mouth, so that the filter bag can be extracted more smoothly and the operation stability is improved.

[0025] Furthermore, the thumb grip comprises a fourth rod body, a fifth rod body and a sixth rod body which are connected in sequence, and the fourth rod body, the fifth rod body and the sixth rod body are an integrated structure;

[0026] The fourth rod and the sixth rod are arranged in parallel, and the fourth rod and the sixth rod are on the same side.

[0027] By adopting the above technical solution, the overall structure is made more stable, and does not require too many manufacturing processes, thereby reducing production costs.

[0028] Preferably, the limiting rod is located between the outer clamping rod and the fourth rod body, and the outer clamping rod and the fourth rod body are on opposite sides.

[0029] By adopting the above technical solution, the position of the four-finger grip is limited by the limit rod.

[0030] Furthermore, the first clamp and the second clamp are both hook-shaped structures.

[0031] By adopting the above technical solution, it is convenient to better clamp the convex ring of the bag opening of the filter bag.

[0032] Furthermore, it also includes a connecting shaft, the end of which passes through the second clamping rod and the other end of the thumb grip rod in sequence.

[0033] By adopting the above technical solution, when in use, the second clamping rod and the four-finger gripping rod rotate around the connecting axis, driving the two clamping heads to perform a clamping action.

[0034] The technical solution provided by the utility model has at least the following technical effects or advantages:

[0035] 1. The technical solution provided by the utility model is to design an envelope-type dust filter bag quick extraction tool based on the structural characteristics of the envelope-type dust filter bag and the internal support frame. The two flat clamps at the front end of the tool are inserted into the gap between the convex ring of the filter bag mouth and the wall panel of the dust removal inner bin. Then the hand grasps the gripping end of the tool and pulls it out forcefully, thereby quickly extracting the dust filter bag together with its internal support frame.

[0036] 2. The technical solution provided by the utility model conforms to the principles of ergonomics, which is convenient for operators to grasp with their whole hands and exert force with their whole body, avoiding the inability to effectively pull out the filter bag due to large resistance and hand pain when grasping the support frame port with bare hands, and avoiding the situation where only the filter bag support frame is pulled out while the filter bag remains in the dust removal bin; at the same time, it prevents the operator's hands from being scratched by the metal edge due to excessive force during extraction, thereby contacting harmful smoke and dust.

[0037] 3. The technical solution provided by the utility model is that the length of the clamping rod is designed to be adjustable, which can be adapted to the length of the extended end of different types of support frames to pull out envelope-type dust filter bags of different models, thereby improving the applicability of the equipment.

[0038] 4. According to the technical solution provided by the utility model, the number of chucks can be flexibly increased, so that the contact area between the chuck and the convex ring of the filter bag mouth is increased, thereby being able to more smoothly pull out the filter bag and improving the operational stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0040] Figure 1 It is a structural schematic diagram provided by the first embodiment of the utility model;

[0041] Figure 2 This is a schematic diagram of the use of the first embodiment of the present utility model;

[0042] Figure 3 It is a structural schematic diagram provided by the second embodiment of the present utility model;

[0043] Figure 4 It is a structural schematic diagram provided by the third embodiment of the present utility model;

[0044] In the figure: 1. Envelope-type dust filter bag quick extraction tool; 101. First clamp; 102. Second clamp; 103. Outer clamp rod; 104. Inner clamp rod; 1041. First rod body; 1042. Second rod body; 1043. Third rod body; 105. Limit rod; 106. Four-finger grip rod; 107. Four-finger grip rod tail end; 108. Thumb grip rod; 1081. Fourth rod body; 1082. Fifth rod body; 1083. Sixth rod body; 109. Connecting shaft; 110. Tension spring; 2. Extended end of support frame; 3. Dust removal inner bin wall panel; 4. Filter bag; 5. Filter bag mouth convex ring; 601. First hollow rod; 602. First solid rod; 603. Bolt; 604. First mounting hole; 701. Fourth clamp; 702. Third clamp.

[0045] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0046] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0047] Embodiment 1

[0048] As introduced in the background technology, the filter bag extraction tools in the prior art are mostly for cylindrical filter bags, and are not suitable for envelope-type dust filter bags with a smaller overall thickness, which makes the removal efficiency of the envelope-type dust filter bags low. In order to solve the above technical problems, the utility model proposes an envelope-type dust filter bag quick extraction tool 1 that conforms to ergonomic principles, which is convenient for the operator to grasp with all hands and exert force with the whole body, thereby facilitating the clamping of the envelope-type dust filter bags.

[0049] Combination Figure 1-Figure 2 The envelope-type dust filter bag quick extraction tool 1 includes a tension spring 110 and a first clamping rod and a second clamping rod connected in sequence. The first clamping rod and the second clamping rod are connected by the tension spring 110. The first clamping rod and the second clamping rod are arranged opposite to each other and are basically symmetrical to form a T-shaped space as a clamping space for the envelope-type dust filter bag.

[0050] The first clamping rod includes a first clamping head 101, an outer clamping rod 103, a limiting rod 105 and a thumb grip 108. The first clamping head 101, the outer clamping rod 103, the limiting rod 105 and the thumb grip 108 are an integrated structure. The first clamping head 101 is fixed to one end of the outer clamping rod 103 along the length direction, and the other end of the outer clamping rod 103 along the length direction is connected to the limiting rod 105. The limiting rod 105 is longitudinally arranged, and an angle is formed between the limiting rod 105 and the outer clamping rod 103.

[0051] The second clamping rod includes a second clamping head 102, an inner clamping rod 104 and a four-finger gripping rod 106. The inner clamping rod 104 includes a first rod body 1041, a second rod body 1042 and a third rod body 1043. The second clamping head 102, the first rod body 1041, the second rod body 1042, the third rod body 1043 and the four-finger gripping rod 106 are an integrated structure; the second clamping head 102 is fixed to one end of the first rod body 1041 along the length direction, and the other end of the first rod body 1041 along the length direction is connected to the second rod body 1042. The second rod body 1042 is longitudinally arranged to form a right angle with the first rod body 1041. The end of the second rod body 1042 away from the first rod body 1041 is connected to one end of the third rod body 1043 along the length direction, and the other end of the third rod body 1043 along the length direction is connected to the four-finger gripping rod 106. The first clamp 101 and the second clamp 102 are symmetrically designed. A connecting rod is vertically connected to the third rod 1043 . A right angle is formed between the connecting rod and the third rod 1043 , and the connecting rod is on the opposite side of the second rod 1042 .

[0052] In order to be closer to ergonomic principles, the thumb grip 108 includes a fourth rod 1081, a fifth rod 1082 and a sixth rod 1083, forming a half-mouth structure to better accommodate the palm; the fourth rod 1081, the fifth rod 1082 and the sixth rod 1083 are an integrated structure; one end of the fourth rod 1081 along the length direction is connected to the end of the limit rod 105 away from the outer clamping rod 103, the other end of the fourth rod 1081 along the length direction is connected to one end of the fifth rod 1082 along the length direction, the other end of the fifth rod 1082 along the length direction is connected to one end of the sixth rod 1083 along the length direction, and the other end of the sixth rod 1083 is hinged to the third rod 1043 through the connecting shaft 109. A right angle is formed between the fourth rod 1081 and the fifth rod 1082, a right angle is formed between the fifth rod 1082 and the sixth rod 1083, the fourth rod 1081 and the sixth rod 1083 are on the same side, and the length of the sixth rod 1083 is shorter than the length of the fourth rod 1081. One end of the tension spring 110 is connected to the sixth rod 1083, and the other end of the tension spring 110 is connected to the connecting rod.

[0053] At the same time, in order to ensure that the inner clamp rod 104 is displaced under the action of the tension spring 110 when not in use or in the initial state, the length of the four-finger grip rod 106 is greater than the relatively arranged outer clamp rod 103 and the first rod body 1041, so that the tail end 107 of the four-finger grip rod can abut against the limit rod 105.

[0054] In this embodiment, the thickness of the first clamp 101 and the second clamp 102 is 2 mm.

[0055] The usage of this embodiment is as follows:

[0056] When there is no force on the clamping rod 104, the tension spring 110 will pull back the inner clamping rod 104. After being pulled back to a certain angle, the four-finger grip 106 will abut against the limit rod 105 to limit the spring tension through the limit rod 105, so that there is a certain distance between the clamping head of the outer clamping rod 103 and the inner clamping rod 104 (the distance is greater than the width of the filter bag mouth convex ring 5 by 10 mm, and the specific size can be set according to actual production conditions).

[0057] When in use, the hand is stretched, and the tension spring 110 pulls the inner clamp rod 104 until the tail end 107 of the four-finger grip rod contacts the limit rod 105. At this time, the inner clamp rod 104 and the outer clamp rod 103 form a certain angle, and then the tool is held in the hand to make the first clamp 101 and the second clamp 102 contact the dust removal inner bin wall panel 3; then the four fingers and the thumb simultaneously hold the four-finger grip rod 106 and the thumb grip rod 108, and the two grip rods rotate around the connecting shaft 109 to drive the two clamps to perform a clamping action, so that the two clamps are inserted into the gap between the filter bag mouth convex ring 5 and the dust removal inner bin wall panel 3, and then the filter bag 4 and its internal support frame are quickly pulled out with force.

[0058] Embodiment 2

[0059] Combination Figure 3 The difference between this embodiment and other embodiments is that the outer clamping rod 103 includes a first hollow rod 601 and a first solid rod 602, the first solid rod 602 is connected to the limit rod 105; the first hollow rod 601 is sleeved on the first solid rod 602, and the first hollow rod 601 is slidably connected to the first solid rod 602; the first rod body 1041 includes a second hollow rod and a second solid rod, the second solid rod is connected to the second rod body 1042, the second hollow rod is sleeved on the second solid rod, and the second hollow rod is slidably connected to the second solid rod. The first hollow rod 601 and the first solid rod 602 are respectively provided with five first mounting holes 604 equidistantly along the length direction, and the second hollow rod and the second solid rod are respectively provided with five second mounting holes equidistantly along the length direction.

[0060] Taking into account the different lengths of the protruding ends 2 of different types of support frames, the clamping rod is set as a retractable structure. When in use, the matching position of the first mounting hole 604 on the first hollow rod 601 and the second mounting hole on the first solid rod 602 can be adjusted according to the length of the protruding end, thereby adjusting the overall length of the rod. Then, the bolt 603 passes through the first mounting hole 604 and the second mounting hole and is fastened with the nut, so that the hollow rod and the solid rod are firmly installed to pull out envelope-type dust filter bags of different models.

[0061] Embodiment 3

[0062] Combination Figure 4The difference between this embodiment and other embodiments is that third clamps 702 are symmetrically installed on both sides of the first clamp 101, and the third clamp 702 is connected to the outer clamp rod 103 through a connecting rod body, forming a rake-like structure with the first clamp 101; fourth clamps 701 are symmetrically installed on both sides of the second clamp 102, and the fourth clamp 701 is connected to the outer clamp rod 103 through a connecting rod body, and forming a rake-like structure with the second clamp 102.

[0063] When in use, six clamps are in contact with the convex ring 5 of the filter bag mouth at the same time, so that the contact area between the extraction tool and the convex ring 5 of the filter bag mouth is increased, thereby being able to extract the filter bag 4 more smoothly and improving the operational stability.

[0064] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. An envelope-type dust filter bag quick extraction tool, characterized in that: It comprises a tension spring and a first clamping rod and a second clamping rod connected in sequence, the first clamping rod and the second clamping rod are arranged opposite to each other to form a clamping space for the envelope-type dust filter bag, and the first clamping rod and the second clamping rod are connected by the tension spring; The first clamping rod comprises a first clamping head, an outer clamping rod, a limiting rod and a thumb gripping rod connected in sequence, and the second clamping rod comprises a second clamping head, an inner clamping rod and a four-finger gripping rod connected in sequence; the limiting rod is longitudinally arranged at one end of the outer clamping rod along the length direction, one end of the thumb gripping rod is connected to the limiting rod, and the other end of the thumb gripping rod is hinged to the second clamping rod, and the hinged part is located at the connection between the inner clamping rod and the four-finger gripping rod; The outer clamping rod and the inner clamping rod are arranged opposite to each other, and the length of the four-finger gripping rod is greater than the distance between the outer clamping rod and the inner clamping rod, and is less than the length of the thumb gripping rod.

2. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: The inner clamping rod comprises a first rod body, a second rod body and a third rod body which are connected in sequence, the first rod body and the third rod body are arranged in parallel, and the second rod body is longitudinally arranged between the first rod body and the third rod body; A connecting rod is vertically arranged on the third rod body, and the connecting rod is on the opposite side of the second rod body; one end of the tension spring is connected to the connecting rod, and the other end of the tension spring is connected to the thumb grip.

3. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: The outer clamping rod comprises a first hollow rod and a first solid rod, the first hollow rod is sleeved on the first solid rod, and the first hollow rod is slidably connected to the first solid rod; The inner clamping rod comprises a second hollow rod and a second solid rod, the second hollow rod is sleeved on the second solid rod, and the second hollow rod is slidably connected to the second solid rod.

4. The envelope-type dust filter bag quick extraction tool as claimed in claim 3, characterized in that: The first hollow rod and the first solid rod are respectively provided with a plurality of first mounting holes equidistantly opened along the length direction, and the second hollow rod and the second solid rod are respectively provided with a plurality of second mounting holes equidistantly opened along the length direction.

5. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: The third clamps are symmetrically arranged on both sides of the first clamp, and the fourth clamps are symmetrically arranged on both sides of the second clamp.

6. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: The thumb grip comprises a fourth rod body, a fifth rod body and a sixth rod body connected in sequence, wherein the fourth rod body, the fifth rod body and the sixth rod body are an integrated structure; The fourth rod and the sixth rod are arranged in parallel, and the fourth rod and the sixth rod are on the same side.

7. The envelope-type dust filter bag quick extraction tool according to claim 6, characterized in that: The limiting rod is located between the outer clamping rod and the fourth rod body, and the outer clamping rod and the fourth rod body are on opposite sides.

8. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: The first clamp, the outer clamp rod, the limit rod and the thumb grip are an integrated structure, and the second clamp, the inner clamp rod and the four-finger grip are an integrated structure.

9. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: The first clamp and the second clamp are both hook-shaped structures.

10. The envelope-type dust filter bag quick extraction tool according to claim 1, characterized in that: It also includes a connecting shaft, the end of which passes through the second clamping rod and the other end of the thumb grip rod in sequence.

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