A stepped adjustable bag-type telescopic chute

By designing a limiting component and a limiting ring to work together, the dust cover can be lowered in stages, which solves the problem of inconsistent service life of the top and bottom dust covers in existing telescopic chutes and extends the uniformity of the service life of the bag pipe.

CN224449019UActive Publication Date: 2026-07-03WUXI BANGYAO MASCH ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI BANGYAO MASCH ENG CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-03

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Abstract

This utility model discloses a progressively adjustable bag-type telescopic chute, comprising: a moving component and a chute assembly connected to the moving component; the chute assembly includes: a chute connected to the moving component; a dust cover fitted onto the chute, comprising multiple connecting frames arranged vertically, and a bag tube for connecting adjacent connecting frames, the top connecting frame being connected to the chute, each connecting frame having a threading rod on both sides in a first direction and a limiting ring on both sides in a second direction, the limiting ring having a through slot, and the threading rod having a threading hole; two adjusting cables, each passing through the threading holes on both sides of multiple sets of connecting frames and connected to the threading rod on the bottom connecting frame; and a limiting component, comprising a rotary motor connected to the moving component or the chute, and a push rod assembly connected to the output end of the rotary motor, the output end of the push rod assembly having a limiting block adapted to the through slot.
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Description

Technical Field

[0001] This utility model relates to the field of telescopic chutes, specifically a bag-type telescopic chute with step-by-step adjustment. Background Technology

[0002] Telescopic chutes are equipment specifically designed for loading and unloading powdery, granular, and lumpy bulk materials, and are widely used in industries such as grain, cement, docks, and feed.

[0003] Its core structure adopts a double-layer casing (chute and dust cover), which has the characteristics of dust prevention, reduced material breakage, environmental protection and high efficiency. It supports manual, automatic or remote control and can be adapted to various loading vehicles such as trains and bulk trucks.

[0004] Dust covers are typically fitted over the outside of the chute. However, the dust covers on current telescopic flow pipes are raised or lowered via cables when retracting or extending. When lowering, the suspension rope is loosened, and the folded dust cover descends under its own weight. During this descent, the top dust cover usually unfolds frequently, while the bottom dust cover remains stacked when it does not need to descend to the predetermined height. After prolonged use, the lifespan of the top and bottom dust covers differs significantly. Utility Model Content

[0005] Purpose of the utility model: To provide a progressively adjustable cloth bag telescopic chute to solve the above-mentioned problems existing in the prior art.

[0006] Technical solution: A progressively adjustable bag-type telescopic chute, comprising:

[0007] A moving component, and a chute assembly connected to the moving component;

[0008] The chute assembly includes:

[0009] The chute is connected to the moving component;

[0010] A dust cover, fitted onto the chute, includes multiple connecting frames arranged in an upper and lower row, and a cloth tube for connecting two adjacent connecting frames. The top connecting frame is connected to the chute. Each connecting frame has a threading rod on both sides in a first direction and a limiting ring on both sides in a second direction. The limiting ring has a through groove, and the threading rod has a threading hole.

[0011] Adjust the cable by designing two cables, which pass through the cable holes on both sides of multiple sets of connecting brackets and are connected to the cable rod on the bottom connecting bracket;

[0012] The limiting component includes a rotary motor connected to a moving component or a chute, and a push rod assembly connected to the output end of the rotary motor. The output end of the push rod assembly is provided with a limiting block adapted to the through slot.

[0013] This utility model designs a limiting component that works in conjunction with a limiting ring. The limiting ring can be locked by a limiting block, thereby fixing the required levels of the connecting frame. This ensures that when the dust cover is lowered, only the lower part of the fixed connecting frame can be lowered step by step. By adjustment, the bottom and top cloth bag tubes can be used alternately, avoiding the situation where the bottom cloth bag tube and the top cloth bag tube have different lifespans after long periods of disuse. It also avoids the aging phenomenon of the cloth bag tubes after long-term use.

[0014] In a further embodiment, the push rod assembly includes:

[0015] A drive ring housing is connected to the output end of the rotary motor. A columnar ring housing is connected to the end of the drive ring housing. A vertical bar is provided inside the columnar ring housing. A fixed frame is installed inside the drive ring housing.

[0016] A telescopic column is disposed inside the column ring shell and extends to the outside of the column ring shell. The end of the telescopic column is provided with a sliding column adapted to the column ring shell. The sliding column has a vertical groove adapted to the vertical bar. The telescopic column and the sliding column have threaded grooves. The limiting block is installed at the end of the telescopic column.

[0017] A lifting motor is located inside the drive ring housing and is installed on the fixed frame. The fixed frame is provided with a reduction gear set, and the output end of the lifting motor is connected to the input end of the reduction gear set.

[0018] The lead screw is connected to the output end of the reduction gear set and is adapted to the threaded groove.

[0019] By designing a push rod assembly, the limit block can be raised and lowered, thereby moving the limit block to below the connecting frame where it needs to be suspended.

[0020] In a further embodiment, the bottom of the bottom connecting frame is also provided with a counterweight tube. By designing the counterweight tube, the weight of the bottom of the dust cover is increased, which facilitates the lowering of the dust cover.

[0021] In a further embodiment, the moving component includes:

[0022] A movable frame, wherein a drive assembly is provided on the side of the movable frame;

[0023] A slide rail is mounted on the movable frame;

[0024] The skateboard has a slider at the bottom that is adapted to the slide rail, a set of reels on the skateboard, and two cable holes on the skateboard that are adapted to the adjustment cable.

[0025] When the rotary motor is connected to the moving component, the rotary motor is mounted on the sliding plate;

[0026] By designing a movable component to drive the chute assembly to move, the chute assembly can be moved to a predetermined position.

[0027] In a further embodiment, the drive group includes:

[0028] The drive wheels are designed in two positions, located at both ends of the side of the mobile frame;

[0029] A drive belt is fitted onto two drive wheels, and one side of the drive belt is connected to the slide plate;

[0030] A drive motor is located on the side of the movable frame, and its output end is connected to any one of the drive wheels;

[0031] By designing a drive unit, the slide plate is moved, thereby adjusting the slide assembly.

[0032] In a further embodiment, the spool assembly includes two take-up spools arranged in an up-down array on the slide plate, and two sets of guide units respectively arranged on both sides of the take-up spools;

[0033] Each set of cross-line units includes:

[0034] A vertical turning wheel is mounted on the slide plate and is adjacent to the wire guide hole;

[0035] A lateral turning wheel is mounted on the skateboard.

[0036] The vertical turning wheel, the horizontal turning wheel, and the take-up wheel are arranged at right angles;

[0037] The back of the skateboard is equipped with a take-up motor whose output end is connected to the take-up reel;

[0038] The adjustment cable passes through the cable hole, goes through the vertical turning wheel and then through the horizontal turning wheel to be fixed on the corresponding take-up wheel. When the take-up wheel rotates, the two take-up wheels rotate, thereby completing the take-up and unwinding of the cable.

[0039] When the two sets of adjustment cables are connected to the two take-up reels, the connection positions are relative, which helps to improve the accuracy of the first step;

[0040] The two sets of cable guide units have a predetermined height difference (the vertical turning wheels and horizontal turning wheels in one set of cable guide units are lower than the vertical turning wheels and horizontal turning wheels in the other set, so as to match the two take-up wheels arranged in rows above and below). The cable guide units are designed to drive the adjustment cable to move, thereby completing the lifting and lowering of multiple connecting frames, and driving the bag tube to retract and unfold.

[0041] In a further embodiment, the chute is connected to the slide plate, and the slide plate has a through groove adapted to the chute.

[0042] Beneficial effects: This utility model discloses a progressively adjustable telescopic chute for cloth bags. By designing a limiting component that works in conjunction with a limiting ring, the limiting ring can be locked by a limiting block, thereby fixing the required level of connecting frame. This ensures that when the dust cover is lowered, only the part below the fixed connecting frame can be lowered progressively. Through adjustment, the bottom and top cloth bag tubes can be used alternately, avoiding the situation where the service life of the bottom and top cloth bag tubes differs after long periods of disuse, and also preventing the cloth bag tubes from aging easily after long-term use. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of this utility model.

[0044] Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model.

[0045] Figure 3 This is a schematic diagram of the reel assembly structure of this utility model.

[0046] Figure 4 This is a schematic diagram of the chute assembly structure of this utility model.

[0047] Figure 5 This is a schematic diagram of the limiting ring structure of this utility model.

[0048] Figure 6 This is a schematic diagram of the limiting component structure of this utility model.

[0049] The attached figures are labeled as follows:

[0050] 1. Chute assembly;

[0051] 11. Connecting frame; 11A. Threading rod; 11B. Limiting ring; 12. Chute; 13. Counterweight tube; 14. Adjusting cable; 15. Limiting component; 151. Rotary motor; 152. Drive ring housing; 153. Column ring housing; 154. Telescopic column; 154A. Limiting block; 155. Sliding column; 156. Lifting motor; 157. Reduction gear set; 158. Lead screw; 159. Fixed frame;

[0052] 16. Cloth bag tube;

[0053] 2. Mobile components;

[0054] 21A, Slide rail; 21B, Moving frame; 21C, Slider; 21D, Slide plate; 21D1, Vertical turning wheel; 21D2, Horizontal turning wheel; 21D3, Take-up reel;

[0055] 22A, drive wheel; 22B, drive belt. Detailed Implementation

[0056] This application relates to a progressively adjustable bag-type telescopic chute, which will be explained in detail below through specific embodiments.

[0057] A progressively adjustable bag-type telescopic chute, as shown in the attached image. Figure 1 As shown, it includes:

[0058] The moving component 2, and the chute assembly 1 connected to the moving component 2;

[0059] As attached Figure 4 As shown, the chute assembly 1 includes:

[0060] The chute 12 is connected to the moving component 2;

[0061] A dust cover, fitted onto the chute 12, includes multiple connecting frames 11 arranged in an upper and lower row, and a cloth tube 16 for connecting two adjacent connecting frames 11. The top connecting frame 11 is connected to the chute 12. Each connecting frame 11 has a wire rod 11A on both sides in a first direction and a limiting ring 11B on both sides in a second direction.

[0062] As attached Figure 5 As shown, the limiting ring 11B has a through groove, and the threading rod 11A has a threading hole;

[0063] Two adjustment cables 14 are designed, which pass through the wire holes on both sides of multiple sets of connecting brackets 11 and are connected to the wire rod 11A on the bottom connecting bracket 11.

[0064] The limiting component 15 includes a rotary motor 151 connected to the moving component 2 or the chute 12, and a push rod assembly connected to the output end of the rotary motor 151. The output end of the push rod assembly is provided with a limiting block 154A adapted to the through slot.

[0065] This utility model designs a limiting component 15 that works in conjunction with a limiting ring 11B. The limiting ring 11B can be locked by a limiting block 154A, thereby fixing the required levels of connecting frames 11. This ensures that when the dust cover is lowered, only the lower part of the fixed connecting frame 11 can be lowered step by step. By adjustment, the bottom and top bag tubes 16 can be used alternately, avoiding the situation where the bottom and top bag tubes 16 have different service lives after being unused for a long time. It also avoids the aging phenomenon of the bag tubes 16 after long-term use.

[0066] As attached Figure 6 As shown, the push rod assembly includes:

[0067] A drive ring housing 152 is connected to the output end of the rotary motor 151. A column ring housing 153 is connected to the end of the drive ring housing 152. A vertical bar is provided inside the column ring housing 153. A fixed frame 159 is installed inside the drive ring housing 152.

[0068] A telescopic column 154 is disposed inside the column ring shell 153 and extends to the outside of the column ring shell 153. The end of the telescopic column 154 is provided with a sliding column 155 adapted to the column ring shell 153. The sliding column 155 has a vertical groove adapted to the vertical bar. The telescopic column 154 and the sliding column 155 have threaded grooves. The limiting block 154A is installed at the end of the telescopic column 154.

[0069] The lifting motor 156 is located inside the drive ring housing 152 and is installed on the fixed frame 159. The fixed frame 159 is provided with a reduction gear set 157, and the output end of the lifting motor 156 is connected to the input end of the reduction gear set 157.

[0070] The reduction gear set 157 is existing technology, and the specific reduction ratio can be selected according to the actual working conditions;

[0071] The lead screw 158 is connected to the output end of the reduction gear set 157 and is adapted to the threaded groove.

[0072] By designing a push rod assembly, the limit block 154A is driven to rise and fall, thereby moving the limit block 154A to below the connecting frame 11 where it needs to be suspended.

[0073] As attached Figure 4 As shown, the bottom of the bottom connecting frame 11 is also provided with a counterweight tube 13. By designing the counterweight tube 13, the weight of the bottom of the dust cover is increased, which facilitates the lowering of the dust cover.

[0074] As attached Figure 2 As shown, the moving component 2 includes:

[0075] The movable frame 21B has a drive assembly on its side;

[0076] Slide rail 21A is mounted on the movable frame 21B;

[0077] The slide plate 21D has a slider 21C at its bottom that is adapted to the slide rail 21A. The slide plate 21D is also equipped with a reel assembly and has two cable holes that are adapted to the adjustment cable 14.

[0078] When the rotary motor 151 is connected to the moving component 2, the rotary motor 151 is mounted on the sliding plate 21D;

[0079] The movable component 2 is designed to drive the chute assembly 1 to move, thereby enabling the chute assembly 1 to move to a predetermined position.

[0080] The drive group includes:

[0081] Two drive wheels 22A are designed and are located at both ends of the side of the movable frame 21B;

[0082] A drive belt 22B is fitted onto two drive wheels 22A, and one side of the drive belt 22B is connected to the slide plate 21D.

[0083] A drive motor is located on the side of the movable frame 21B, and its output end is connected to any one of the drive wheels 22A;

[0084] By designing a drive unit, the sliding plate 21D is moved, thereby adjusting the chute assembly 1.

[0085] As attached Figure 3 As shown, the reel assembly includes two take-up reels 21D3 arranged in an up-down array on the slide plate 21D, and two sets of line guide units respectively arranged on both sides of the take-up reels 21D3.

[0086] Each set of cross-line units includes:

[0087] A vertical turning wheel 21D1 is disposed on the slide plate 21D and is adjacent to the wire hole;

[0088] A lateral turning wheel 21D2 is mounted on the skateboard 21D;

[0089] The vertical turning wheel 21D1, the horizontal turning wheel 21D2, and the take-up wheel 21D3 are arranged at right angles;

[0090] The back of the skateboard 21D is equipped with a take-up motor whose output end is connected to the take-up reel 21D3;

[0091] The adjusting cable 14 passes through the cable hole, passes through the vertical turning wheel 21D1 and then through the horizontal turning wheel 21D2 and is fixed on the corresponding take-up wheel 21D3. When the take-up wheel 21D3 rotates, the two take-up wheels 21D3 rotate, thereby completing the take-up and unwinding work.

[0092] When the two sets of adjustment cables 14 are connected to the two take-up reels 21D3, the connection positions are relative, which helps to improve the accuracy of the first step;

[0093] The two sets of cable guide units have a predetermined height difference (the vertical turning wheel 21D1 and horizontal turning wheel 21D2 in one set of cable guide units are lower than the vertical turning wheel 21D1 and horizontal turning wheel 21D2 in the other set, so as to match the two take-up wheels 21D3 arranged in rows above and below). The cable guide units are designed to drive the adjustment cable 14 to move, thereby completing the lifting and lowering of multiple connecting frames 11, and driving the bag tube 16 to retract and unfold.

[0094] In a further embodiment, the chute 12 is connected to the slide plate 21D, and the slide plate 21D has a through groove adapted to the chute 12.

[0095] Working principle description: During operation, the drive motor drives the drive belt 22B to move, which in turn drives the slide plate 21D to adjust to the predetermined position. Then, the take-up motor drives the take-up wheel 21D3 to rotate, which in turn takes in the adjustment cable, which in turn drives multiple connecting frames 11 to rise step by step from the bottom to the top, thereby completing the work of gathering the bag tube 16.

[0096] When the fabric tube 16 is unfolded, the desired layer of fabric tube 16 is selected. The lifting motor 156 drives the reduction gear set 157 to rotate, which in turn drives the lead screw 158 to rotate. This causes the sliding column 155 to move up and down within the column ring shell 153, thereby driving the telescopic column 154 to descend. This causes the limiting block 154A to descend to below the limiting ring 11B on the side of the connecting frame 11 above the desired layer of fabric tube 16. During descent, the limiting block 154A moves through the through slot to below the limiting ring 11B. Then, the rotary motor 151 drives the push rod assembly. The component rotates, causing the limiting block 154A to rotate, so that the limiting block 154A and the through slot are in an intersecting state. At this time, since the limiting block 154A is located below the limiting ring 11B, the connecting frame 11 at this point can be restricted to descend by the limiting block 154A. Then, the take-up motor drives the take-up wheel 21D3 to rotate, loosening the adjustment cable 14. At this time, the bag tube 16 and the connecting frame 11 below, which are in contact with the limiting block 154A, unfold step by step due to their own weight, thereby completing the step-by-step lowering of the dust cover at the predetermined levels.

[0097] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A step-adjustable telescopic spout with cloth bag, characterized in that, include: The moving component (2) and the chute assembly (1) connected to the moving component (2); The chute assembly (1) is characterized in that it comprises: The chute (12) is connected to the moving component (2); A dust cover is fitted onto the chute (12) and includes multiple connecting frames (11) arranged in an upper and lower row, and a cloth tube (16) for connecting two adjacent connecting frames (11). The top connecting frame (11) is connected to the chute (12). Each connecting frame (11) has a threading rod (11A) on both sides in the first direction and a limiting ring (11B) on both sides in the second direction. The limiting ring (11B) has a through groove, and the threading rod (11A) has a threading hole. Two adjustment cables (14) are designed, which pass through the wire holes on both sides of multiple sets of connecting frames (11) and are connected to the wire rod (11A) on the bottom connecting frame (11). The limiting component (15) includes a rotary motor (151) connected to the moving component (2) or the chute (12), and a push rod assembly connected to the output end of the rotary motor (151), wherein the output end of the push rod assembly is provided with a limiting block (154A) adapted to the through slot.

2. The step-adjustable telescopic fabric sleeve according to claim 1, characterized in that: The push rod assembly includes: A drive ring housing (152) is connected to the output end of the rotary motor (151). A column ring housing (153) is connected to the end of the drive ring housing (152). A vertical bar is provided inside the column ring housing (153). A fixed frame (159) is installed inside the drive ring housing (152). A telescopic column (154) is disposed inside the column ring shell (153) and extends to the outside of the column ring shell (153). The end of the telescopic column (154) is provided with a sliding column (155) adapted to the column ring shell (153). The sliding column (155) has a vertical groove adapted to the vertical bar. The telescopic column (154) and the sliding column (155) have threaded grooves. The limiting block (154A) is installed at the end of the telescopic column (154). The lifting motor (156) is located inside the drive ring housing (152) and is installed on the fixed frame (159). The fixed frame (159) is provided with a reduction gear set (157). The output end of the lifting motor (156) is connected to the input end of the reduction gear set (157). The lead screw (158) is connected to the output end of the reduction gear set (157) and is adapted to the threaded groove.

3. The step-adjustable telescopic fabric sleeve according to claim 1, characterized in that: The bottom of the bottom connecting frame (11) is also provided with a counterweight tube (13).

4. The step-adjustable telescopic fabric sleeve according to claim 3, characterized in that: The moving component (2) includes: A movable frame (21B) is provided with a drive assembly on its side; A slide rail (21A) is mounted on the movable frame (21B); The slide plate (21D) has a slider (21C) at the bottom that is adapted to the slide rail (21A), and a spool assembly is also provided on the slide plate (21D). The slide plate (21D) has two through holes adapted to the adjustment cable (14).

5. The step-adjustable telescopic fabric sleeve according to claim 4, characterized in that: The drive group includes: Two drive wheels (22A) are designed and are located at both ends of the side of the movable frame (21B); A drive belt (22B) is fitted onto two drive wheels (22A), and one side of the drive belt (22B) is connected to the slide plate (21D); A drive motor is located on the side of the movable frame (21B), and its output end is connected to any one of the drive wheels (22A).

6. A step-adjustable telescopic fabric sleeve according to claim 5, characterized in that: The spool assembly includes two take-up spools (21D3) arranged in an up-down array on the slide plate (21D), and two sets of line guide units respectively arranged on both sides of the take-up spools (21D3); Each set of cross-line units includes: A vertical turning wheel (21D1) is disposed on the slide plate (21D) and adjacent to the wire hole; A lateral turning wheel (21D2) is mounted on the skateboard (21D); The vertical turning wheel (21D1), the horizontal turning wheel (21D2), and the take-up wheel (21D3) are arranged at right angles; The back of the skateboard (21D) is equipped with a take-up motor whose output end is connected to the take-up reel (21D3); The two sets of line-crossing units have a predetermined height difference.

7. A step-adjustable telescopic fabric sleeve according to claim 6, characterized in that: The chute (12) is connected to the slide plate (21D), and the slide plate (21D) has a through groove adapted to the chute (12).