CN109499209B - Telescopic bag cage group and telescopic folding bag cage device - Google Patents

Abstract

The invention discloses a telescopic bag cage group and a telescopic folding bag cage device. The telescopic bag cage group comprises a plurality of unit cages, each unit cage comprises an upper supporting ring, a lower supporting ring and a supporting rod, the lower supporting ring is fixedly provided with a lower lug, the upper supporting ring is fixedly provided with an upper lug, the lower end of the supporting rod is fixed on the lower lug, and the upper end of the supporting rod is locked on the upper lug; the connection of every two adjacent unit cages is as follows: the lower supporting rings of the upper unit cage are sleeved in the supporting rods of the lower unit cage by staggering the lower lugs and the upper lugs, the lower lugs of the upper unit cage are partially overlapped with the upper lugs of the lower unit cage by rotating, the supporting rods of the upper unit cage are hooked by the positioning hooks to lock the circumferential positions of the upper unit cage and the lower unit cage, the expansion limit is limited by partially overlapped and matched with the upper lugs of the upper unit cage, and the expansion limit is limited by the positioning hooks of the upper supporting rings of the upper unit cage and the lower unit cage. It has the following advantages: the constant diameter expansion and contraction with large expansion ratio can be realized, the unit cage can be assembled without dismantling the injection pipe, and the production and maintenance of the bag cage are convenient.

Description

Telescopic bag cage set and telescopic folding bag cage device

technical field

The patent of the present invention relates to the field of dust removal technology, and specifically relates to a telescopic bag cage set and a telescopic folding bag cage device based on an assembleable unit design.

Background technique

The bag cage is an important component of the bag filter. The bag filter is a dry dust filter device, which uses the filter bag to filter the gas, and the dust is blocked on the outer surface of the filter bag, and then the filter bag is cleaned by the back blowing airflow of the blowing pipe installed directly above. The bag cage is installed inside the filter bag to support the filter bag and prevent the filter bag from collapsing.

The bag cage mainly includes rings and longitudinal reinforcement, which are required to be evenly distributed and have sufficient strength. There are mainly three structures of long bag cages, segmented bag cages and telescopic rod structure bag cages in the existing market. The long bag cage is generally divided into three sections, which are connected by chucks and plugs. Traditional bag cages are long, bulky, and non-foldable, which is not conducive to storage and transportation. The segmented bag cage has the problem that it is easy to miss and fall off, and to replace the bag cage, you need to remove the blowing pipe directly above it, which is inconvenient to replace and maintain. When the existing telescopic rod structure is stretched, the diameter decreases step by step, the ultimate stretch ratio is small, and the strength is relatively weak.

Contents of the invention

The invention provides a telescopic bag cage set and a telescopic folding bag cage device, which overcome the shortcomings of the bag cage in the background art.

One of the adopted technical schemes that the present invention solves its technical problem is:

The telescopic bag cage set includes several unit cages, each unit cage includes an upper support ring, a lower support ring and a support rod, the lower support ring is fixed with a lower lug, and the upper support ring is fixed with an upper protrusion Ear, the lower end of the support rod is fixed on the lower lug, and the upper end is locked on the upper lug; the several unit cages are connected up and down in sequence and the connection of each adjacent two unit cages is: the lower part of the upper unit cage can be staggered The lugs and the upper lugs of the lower unit cage cover the lower support ring of the upper unit cage in these support rods of the lower unit cage, and the lower lugs of the upper unit cage and the upper protrusions of the lower unit cage can be made by rotating the upper unit cage. The ear parts are overlapped, and a rotatable positioning hook is provided on the upper lug of the lower unit cage. The positioning hook is connected to the support rod of the upper unit cage to lock the circumferential position of the upper unit cage and the lower unit cage. The partial coincidence of the lower lugs of the cage and the upper lugs of the lower unit cage limits the extension limit of the upper unit cage and the lower unit cage, and the upper unit cage is limited by the upper support ring of the upper unit cage and the positioning hook of the lower unit cage and the telescopic shrinkage limit of the lower unit cage.

In one embodiment: the plurality of unit cages are divided into a lowermost unit cage and a number of other unit cages, and the inner wall of the upper support ring of the remaining unit cages is protruded with the above-mentioned upper lugs, and the upper lugs are arranged in a clockwise direction. Extending, the outer wall of the lower support ring of the remaining unit cages protrudes with the above-mentioned lower lug, the lower lug extends counterclockwise, and the inner diameter of the upper support ring is larger than the outer diameter of the lower support ring.

In one embodiment: the inner wall of the upper support ring of the lowermost unit cage is protruded with the above-mentioned upper lug, and the inner wall of the lower support ring of the lowermost unit cage is protruded with the above-mentioned lower lug.

In one embodiment: the upper lugs of the remaining unit cages are all rotatably connected with positioning hooks.

In one embodiment: a bolt mechanism is additionally provided, and the bolt mechanism connects the positioning hook, the upper lug and the support rod.

In one embodiment: among the several unit cages: the supporting rods of the unit cages sorted up and down are arranged in order along the circumferential direction.

Two of the adopted technical scheme that the present invention solves its technical problem is:

The retractable and foldable bag cage device includes several telescopic bag cage groups mentioned above, and every two adjacent telescopic bag cage groups in the several telescopic bag cage groups: two ropes are provided, and the two ends of the rope are respectively connected to each other. The lower support ring of the penultimate unit cage of the upper telescopic bag cage set and the upper support ring of the uppermost unit cage of the lower telescopic bag cage set, and the two ends of the other rope are respectively connected to the second unit of the upper telescopic bag cage set The upper support ring of cage and the lower support ring of the uppermost unit cage of the lower telescopic bag cage group.

In one embodiment: the outer wall of the lower support ring of the penultimate unit cage of the telescopic bag cage group is protruded with an external connection protrusion, and the upper support ring and upper telescopic ring of the uppermost unit cage of the lower telescopic bag cage group The inner wall of the upper support ring of the second unit cage of the telescopic bag cage group and the lower support ring of the uppermost unit cage of the lower telescopic bag cage group are all protrudingly provided with internal connection protrusions, and the ropes are connected to the external connection protrusions. The cord connects to the inner wire bump.

In one embodiment: the lower support ring of the uppermost unit cage in the several telescopic bag cage groups is provided with an outer cone wall, and the upper support ring of the lowermost unit cage is provided with an inner cone wall. The wall and the inner cone wall fit.

Compared with the background technology, this technical solution has the following advantages:

By staggering the lower lugs of the upper unit cage and the upper lugs of the lower unit cage, the lower support ring of the upper unit cage is sleeved in the support rods of the lower unit cage, and the lower lugs of the upper unit cage and the upper unit cage are made by rotating the upper unit cage. The upper lugs of the lower unit cage are partially overlapped, and then the positioning hook is hooked to the support rod of the upper unit cage to lock the circumferential position of the upper unit cage and the lower unit cage, and the lower lug of the upper unit cage and the lower unit cage Partial coincidence of the upper lugs limits the stretching limit of the upper unit cage and the lower unit cage, and limits the stretching limit of the upper unit cage and the lower unit cage through the upper support ring of the upper unit cage and the positioning hook of the lower unit cage. Therefore, the deficiencies in the background technology are overcome and the following technical effects are produced: 1. Multiple unit cages can be stretched, and can realize equal-diameter stretching with a large stretching ratio; 2. The overall structure is stable before and after stretching; 3. A large proportion can be realized. Equal-diameter telescopic, can be installed and taken out without dismantling the blowing pipe; 4. High strength, simple structure, easy to assemble and maintain; 5. The unit cage can be assembled, which is convenient for the production and maintenance of the bag cage.

The positioning hook is rotatably connected to the upper lug, which facilitates the installation and removal of the unit cage.

The two ends of one rope are respectively connected to the lower support ring of the penultimate unit cage of the upper telescopic bag cage set and the upper support ring of the uppermost unit cage of the lower telescopic bag cage set, and the two ends of the other rope are respectively connected to the upper telescopic bag The upper support ring of the second unit cage of the cage group and the lower support ring of the uppermost unit cage of the lower telescopic bag cage group can be installed into the filter bags one by one without disassembling the blowing pipe. Not used in sections.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is an assembly drawing of a bag cage in a specific embodiment.

Fig. 2 is a front view of a unit cage of a specific embodiment.

Fig. 3 is a top view of a unit cage of a specific embodiment.

Fig. 4 is a schematic diagram of the coordination of the positioning hooks of the unit cage according to the specific embodiment.

Fig. 5 is a schematic diagram of a partial structure of a bag-cage group according to a specific embodiment.

Fig. 6 is one of the schematic diagrams of the folded structure of the bag cage device according to the specific embodiment.

Fig. 7 is the second schematic diagram of the folding structure of the bag cage device according to the specific embodiment.

Fig. 8 is a top view of the support ring provided with internal connection protrusions according to a specific embodiment.

Fig. 9 is a top view of a support ring provided with external wiring protrusions according to a specific embodiment.

Fig. 10 is a schematic diagram of the butt joint of the conical mouth of the bag cage device according to the specific embodiment.

Detailed ways

Telescopic bag cage group, please refer to Fig. 1 to Fig. 5, comprise several unit cages 1,1', unit cage 1,1' include an upper supporting ring 11,11', a lower supporting ring 12,12' and four Support rods 13, 13', the lower support rings 11, 11' are fixed with four lower lugs 111, 111' arranged in an annular array, and the upper support rings 12, 12' are fixed with four upper lugs arranged in an annular array. Lugs 121, 121', the lower ends of the support rods 13, 13' are fixed on the lower lugs 111, 111', and the upper ends are locked on the upper lugs 121, 121'. The several unit cages 1, 1' are connected up and down in sequence and the connection of every two adjacent unit cages is: the upper unit can be connected by staggering the lower lugs of the upper unit cages 1, 1' and the upper lugs of the lower unit cages. The lower support ring of the cage is set in the support rods of the lower unit cage, and the lower lugs of the upper unit cage and the upper lugs of the lower unit cage can be partially overlapped by rotating the upper unit cage, and the upper lugs of the lower unit cage A rotatable positioning hook 14 is provided, through which the supporting rod of the upper unit cage is hooked to lock the circumferential position of the upper unit cage and the lower unit cage, and through the lower lug of the upper unit cage and the upper protrusion of the lower unit cage The cooperation of the ears limits the telescopic extension limit of the upper unit cage and the lower unit cage, and the telescopic contraction limit of the upper unit cage and the lower unit cage is limited by the upper support ring of the upper unit cage and the positioning hook of the lower unit cage.

The several unit cages are divided into a lowermost unit cage 1' and several other unit cages 1, the inner wall of the upper support ring 11 of the remaining unit cages 1 is provided with the above-mentioned upper lug 111, and the lower support of the remaining unit cages 1 The outer wall of the ring 12 is convexly provided with the above-mentioned lower lug 121, and the inner diameter of the upper support ring is greater than the outer diameter of the lower support ring, the difference between the inner diameter of the upper support ring and the outer diameter of the lower support ring is a, and the height of the upper lug is b, the height of the lower lug is c, the a>b, the a>c, b+c>a. Locating hooks 14 are all rotatably connected to the upper lugs of the remaining unit cages. The inner wall of the upper support ring 11' of the lowermost unit cage 1' is protruded with the above-mentioned upper lug 111', and the inner wall of the lower support ring 12' of the lowermost unit cage is protruded with the above-mentioned lower lug 112'.

In the plurality of unit cages: the support rods of the unit cages sorted up and down are arranged in order along the circumferential direction, and the rings of the unit cages will not collide during the contraction process of the bag cage group.

In addition, a bolt mechanism is provided, which connects the positioning hook, the upper lug 111 and the support rod 13, and then the locking bolt mechanism can lock the positioning hook. The rotation axis of the positioning hook is arranged coaxially with the axis of the support rod. If a semicircular groove is set in the positioning hook, the semicircular groove and the outer wall of the support rod are adapted. The semicircular groove of the positioning hook groove is matched with the support rod in clearance, and can slide on the support rod. The positioning hooks are used to hook the support rods, and multiple positioning hooks are used in parallel to determine the distance between the upper and lower unit cage support rods.

Assembly process: Assemble each unit cage, fix the support rod to the lower lug of the lower support ring, lock the upper support ring to the upper end of the support rod; loosen the positioning hook; stagger the upper and lower unit cages in the circumferential direction. The lower support ring of the unit cage is set outside the support rods of the lower unit cage; rotate the upper unit cage, and then rotate the positioning hook so that the positioning hook hooks the support rods of the upper unit cage, and uses the positioning hole to position so that the support rod and the semicircle The slots keep clearance fit, lock the bolt mechanism, and fix the positioning hook, and at this time, the upper lug and the lower lug are partially overlapped.

Please refer to Fig. 6 to Fig. 10, the retractable and foldable bag cage device includes several telescopic bag cage groups mentioned above, and every two adjacent telescopic bag cage groups A and B in the several telescopic bag cage groups: Set two ropes 2, one rope two ends are respectively connected to the lower support ring of the penultimate unit cage of the upper telescopic bag cage group and the upper support ring of the uppermost unit cage of the lower telescopic bag cage group, and the two ends of the other rope are Respectively connect the upper support ring of the second unit cage of the upper telescopic bag cage group and the lower support ring of the uppermost unit cage of the lower telescopic bag cage group. And, the lower support ring outer wall of the penultimate unit cage of the telescopic bag cage group is protrudingly provided with an external connection protrusion 3, and the upper support ring and the upper telescopic bag cage of the uppermost unit cage of the lower telescopic bag cage group The inner wall of the upper support ring of the second unit cage of the group and the lower support ring of the uppermost unit cage of the lower telescopic bag cage group are all protrudingly provided with internal connection protrusions 4, the ropes are connected to the external connection protrusions, and the ropes are connected The inner wire is raised. The lower support ring of the uppermost unit cage in the several telescopic bag cage groups is provided with an outer cone wall 5, and the upper support ring of the lowermost unit cage is provided with an inner cone wall 6, and the outer cone wall and the inner cone Wall fit. When the retractable and foldable bag-cage device shrinks, there is enough space between the bag-cage groups, and the bag-cage groups can be loaded into filter bags one by one; The bag cage group is coaxial.

The working principle of the bag-cage device is: the bag-cage group can expand and contract in a large proportion, and after shrinking, it can be directly loaded into the filter bag from directly below the blowing pipe. The folding structure can connect multiple bag cage groups to avoid missing and falling off during use. The bag cage group is composed of several unit cages nested and can be shrunk to the size of a single unit cage. The unit cage stretches and expands through the tangential dislocation of the longitudinal ribs, and the support rods of two adjacent unit cages keep a certain distance along the ring tangential direction, so that the support rods of each unit cage are staggered from the rest of the sections, realizing the realization of each unit cage before and after stretching. The diameters of the ring and the support rod are equal to ensure that the structure of each section of the unit cage is the same and the performance is stable. The bag-cage group is stretched by gravity, and the overlapping parts of the upper and lower rings are used to contact and limit. The folding structure is a flexible structure composed of two sets of ropes connecting the upper and lower sets of bag-cage sets. Multiple bag-cage sets are connected end to end and used as a whole to avoid the possibility of missing installation.

This specific embodiment can produce the following technical effects: the bag cage group has a simple structure, can be stretched and folded, is convenient for transportation and storage, and can be loaded into the filter bag without dismantling the blowing pipe directly above it. The bag cage group is mainly based on a telescopic structure, which can achieve large-scale expansion and contraction, and the diameter of the ring and the support rod remains unchanged, which has sufficient strength and structural stability. At the same time, the design of the bag-cage group combined with the folding structure makes up for the limitation of the expansion limit of the bag-cage unit group, and has a good adaptability. For filter bags of different lengths, multiple bag-cage groups can be pre-assembled to realize the unit cage. Segmentation to avoid the possibility of missed installation. The unit cage is connected with the hook structure of the upper and lower rings and the positioning hook. The hook structure has a large bearing area and can effectively bear the static pressure load brought by the self-weight of the long bag cage; the unit cage is based on the design of the assembleable unit, and the structure of each unit cage is the same. And can be assembled and replaced. The positioning hook not only plays a positioning role, but also facilitates the assembly of bag cage groups and replacement of damaged unit cages.

The above is only a preferred embodiment of the present invention, so the scope of the present invention cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the present invention and the content of the specification should still be covered by the present invention within range.

Claims (7)

1. The telescopic bag cage group is characterized in that: it includes several unit cages, each of which includes an upper support ring, a lower support ring and a support rod, the lower support ring is fixedly provided with lower lugs, and the upper support ring The ring is fixed with an upper lug, the lower end of the support rod is fixed on the lower lug, and the upper end is locked on the upper lug; the several unit cages are connected up and down in sequence and the connection between each adjacent two unit cages is: can pass Stagger the lower lugs of the upper unit cage and the upper lugs of the lower unit cage, and put the lower support ring of the upper unit cage in the support rods of the lower unit cage, so that the lower lugs of the upper unit cage and the lower lugs of the upper unit cage can be rotated The upper lugs of the lower unit cage are partially overlapped, and a rotatable positioning hook is provided on the upper lug of the lower unit cage. To the position, the extension limit of the upper unit cage and the lower unit cage is limited by the partial overlap and fit of the lower lug of the upper unit cage and the upper lug of the lower unit cage, and the upper support ring of the upper unit cage and the lower unit cage The positioning hooks limit the expansion and contraction limits of the upper unit cage and the lower unit cage; the several unit cages are divided into a lowermost unit cage and a number of other unit cages, and the inner wall of the upper support ring of the remaining unit cages is provided with the above-mentioned upper convex ears; the outer wall of the lower support ring of the remaining unit cages is provided with the above-mentioned lower lugs, and the inner diameter of the upper support ring is greater than the outer diameter of the lower support ring; the inner wall of the upper support ring of the lowermost unit cage is provided with the above-mentioned upper lugs. Lugs; in the plurality of unit cages: the support rods of the unit cages sorted up and down are arranged in order along the circumferential direction. 2. The telescopic bag cage set according to claim 1, wherein the upper lug extends clockwise, and the lower lug extends counterclockwise. 3. The telescopic bag cage set according to claim 2, characterized in that: the inner wall of the lower supporting ring of the lowermost unit cage is protrudingly provided with the above-mentioned lower lug. 4. The telescopic bag cage set according to claim 2, characterized in that: the upper lugs of the remaining unit cages are all rotatably connected with positioning hooks. 5. The telescopic bag cage set according to claim 2, characterized in that: a bolt mechanism is additionally provided, and the bolt mechanism connects the positioning hook, the upper lug and the support rod. 6. The telescopic and folding bag cage device is characterized in that: it comprises several telescopic bag cage groups according to claim 1 or 2 or 3 or 4 or 5, and each adjacent two of these several telescopic bag cage groups Telescopic bag cage group: equipped with two ropes, the two ends of the rope are respectively connected to the lower support ring of the penultimate unit cage of the upper telescopic bag cage group and the upper support ring of the uppermost unit cage of the lower telescopic bag cage group , the other two ends of the rope are respectively connected to the upper support ring of the second unit cage of the upper telescopic bag cage group and the lower support ring of the uppermost unit cage of the lower telescopic bag cage group. 7. The telescopic folding bag cage device according to claim 6, characterized in that: the lower support ring of the uppermost unit cage in the several telescopic bag cage groups is provided with an outer cone wall, and the lowermost unit cage The upper support ring is provided with an inner cone wall, and the outer cone wall is adapted to the inner cone wall.

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