Special induction type material leakage detector for stacker
By designing lifting and rotating components, the material leakage detector for stackers is made compatible with different models of stackers and can be used for timely emergency stop in case of belt tearing. This solves the problem of poor adaptability of existing material leakage detectors and improves safety and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RIZHAO LANSHAN WANSHENG PORT IND CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
Existing stacker leak detectors are incompatible with stackers of different widths and models, and cannot detect belt tears in a timely manner, leading to safety hazards and material leaks.
A special inductive leakage detector for stackers was designed. It adopts a lifting component and a rotating component, and achieves compatibility with different models of stackers through the cooperation of threaded rod, bevel gear and worm gear. It also uses a collection hopper and control switch to realize the emergency stop function in case of belt tear.
It improves the practicality and convenience of the material leakage detector, can adapt to stackers of different models and sizes, can detect belt tears in time and stop them immediately, reducing material leakage and safety accidents.
Smart Images

Figure CN224146975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material leakage detection technology, and in particular to a dedicated inductive material leakage detector for stackers. Background Technology
[0002] In stacker cranes, belts are key components that bear the heavy responsibility of transporting goods. They are mostly made of rubber, plastic, synthetic materials or metal and are mainly used for material conveying. They are widely used in mining, metallurgy, chemical, building materials and food industries, and can greatly improve the material conveying speed.
[0003] In the mining, metallurgy, power and coal industries, stackers are used to transport materials. However, due to the complex production environment and the heavy and hard materials being transported, stacker belts are prone to tearing. Belt tearing can not only cause material leakage but also lead to safety accidents. Therefore, a stacker leakage detector is needed.
[0004] Currently, the material leakage detectors for stackers on the market mainly consist of a support frame, a protective rope, a pull-rope switch, and a controller. When using the detector, the support frame is used to install the pull-rope switch. When the belt tears, the conveyed item passes through the crack and presses against the protective rope, triggering the pull-rope switch. This switch, when controlled, can then urgently stop the belt. However, in actual use, due to the small size of the protective rope, the conveyed item may fall through the gaps, resulting in delayed detection. To solve this problem, existing technologies often use a funnel-type detection device, transforming the protective rope into a large-area funnel. When the conveyed item falls into the funnel, it triggers the emergency stop switch. However, because different stacker belt widths and models vary, the material leakage detector is not easily compatible with stackers of different widths and models, reducing its practicality and failing to meet user needs. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a dedicated inductive leakage detector for stackers, aiming to improve the problem that existing leakage detectors are inconvenient to use on stackers of different widths and models.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a special inductive leakage detector for stackers, comprising a support frame, a support plate provided on the top inner side of the support frame, a collection hopper provided on the upper side of the support plate, a box fixedly connected to the bottom of the collection hopper, outer shells fixedly connected to the left and right sides of the bottom of the collection hopper, threaded rods rotatably connected to the inner sides of the two outer shells, and sliders threadedly connected to the outer sides of the two threaded rods, grooves provided on the left and right sides of the inside of the collection hopper, and auxiliary plates fixedly connected to the top ends of the two sliders through the corresponding grooves, a rotating assembly provided on the inner side of the box, a control assembly provided on the top of the support plate, and a lifting assembly provided on the upper middle part of the inner side of the support plate, the lifting assembly being used to facilitate the lifting and lowering of the leakage detector.
[0007] As a further description of the above technical solution:
[0008] The lifting assembly includes a hollow plate, which is fixedly connected to the upper inner part of the support frame. A transmission rod is rotatably connected to the middle inner part of the hollow plate. A spur gear is fixedly connected to the left and right sides of the outer wall of the transmission rod. A concave column is fixedly connected to the left and right sides of the bottom inner part of the hollow plate. A cylindrical rack is slidably connected to the inner side of each of the two concave columns. The two cylindrical racks are respectively meshed with the corresponding spur gears. The bottom end of the cylindrical rack penetrates the hollow plate, and the top end of the cylindrical rack penetrates the hollow plate and is fixedly connected to the support plate. A drive assembly is provided inside the hollow plate.
[0009] As a further description of the above technical solution:
[0010] The rotating assembly includes a rotating rod, which is rotatably connected to the front end of the housing. The rear end of the rotating rod is fixedly connected to a driving bevel gear. The adjacent ends of the two threaded rods pass through the outer shell and the housing in sequence and are fixedly connected to driven bevel gears. The two driven bevel gears are respectively meshed with the left and right sides of the driving bevel gear. The front end of the rotating rod passes through the housing and is fixedly connected to a knob.
[0011] As a further description of the above technical solution:
[0012] The control component includes a mounting block, which is fixedly connected to the top center of the support plate. A control switch is fixedly connected to the top of the mounting block. Hollow columns are fixedly connected to the four corners inside the support plate. Springs are fixedly connected to the bottom of the hollow columns. Movable columns are fixedly connected to the top of the springs. The top of the movable columns is fixedly connected to the bottom of the collection hopper.
[0013] As a further description of the above technical solution:
[0014] The drive assembly includes a worm gear, which is fixedly connected to the middle of the outer side of the transmission rod. A connecting rod is rotatably connected to the bottom of the hollow plate. The top of the connecting rod passes through the hollow plate and is fixedly connected to a worm. The worm meshes with the worm gear.
[0015] As a further description of the above technical solution:
[0016] A handle is fixedly connected to the bottom end of the connecting rod, and a protective sleeve is fixedly connected to the outside of the handle.
[0017] As a further description of the above technical solution:
[0018] Mounting plates are fixedly connected to the bottom front, rear, left and right sides of the support frame, and holes are opened on the top of the mounting plates.
[0019] As a further description of the above technical solution:
[0020] A support rod is fixedly connected to the upper left side of the support frame, and an alarm is fixedly connected to the top of the support rod.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the rotating rod drives the active bevel gear to rotate. Since the driven bevel gear meshes with the active bevel gear, the driven bevel gear will drive the threaded rod to rotate. At this time, the slider will drive the auxiliary plate to move, which can be compatible with stackers of different models and sizes. When the belt is punctured and torn, the spilled material falls into the collection hopper. The collection hopper will move downward, thereby triggering the control switch, which can stop the belt in an emergency. This improves the practicality of the leakage detector and can meet the needs of users.
[0023] 2. In this utility model, the connecting rod drives the worm to rotate. Since the worm wheel meshes with the worm, the worm wheel will rotate accordingly and drive the spur gear to rotate through the transmission rod. Since the cylindrical rack meshes with the spur gear, the cylindrical rack will drive the support plate to move accordingly, which can conveniently adjust the height of the leakage detector and improve the convenience of using the leakage detector. Attached Figure Description
[0024] Figure 1 This is a perspective view of the inductive leakage detector for stackers proposed in this utility model;
[0025] Figure 2 This is a partial structural cross-sectional view of the inductive leakage detector for stackers proposed in this utility model;
[0026] Figure 3 This is a split view of the collection hopper structure of the inductive leakage detector for stackers proposed in this utility model;
[0027] Figure 4 This is a partial structural exploded view of the stacker-specific inductive leakage detector proposed in this utility model;
[0028] Figure 5 This is a cross-sectional view of the hollow plate structure of the inductive leakage detector for stackers proposed in this utility model.
[0029] Legend:
[0030] 1. Support frame; 2. Lifting assembly; 201. Hollow plate; 202. Transmission rod; 203. Flat gear; 204. Concave column; 205. Cylindrical rack; 206. Worm gear; 207. Connecting rod; 208. Worm; 3. Support plate; 4. Collection hopper; 5. Box body; 6. Outer shell; 7. Threaded rod; 8. Sliding block; 9. Slide groove; 10. Auxiliary plate; 11. Mounting block; 12. Control switch; 13. Hollow column; 14. Spring; 15. Movable column; 16. Driven bevel gear; 17. Rotating rod; 18. Driving bevel gear; 19. Knob; 20. Handle; 21. Protective sleeve; 22. Mounting plate; 23. Hole; 24. Support rod; 25. Alarm. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a special inductive leakage detector for stackers, comprising a support frame 1, a support plate 3 on the top inner side of the support frame 1, a collection hopper 4 on the upper side of the support plate 3, a housing 5 fixedly connected to the bottom of the collection hopper 4, and outer shells 6 fixedly connected to the left and right sides of the bottom of the collection hopper 4. Threaded rods 7 are rotatably connected to the inner sides of the two outer shells 6, and sliders 8 are threadedly connected to the outer sides of the two threaded rods 7. When the threaded rods 7 rotate, the sliders 8 move accordingly. Slide grooves 9 are provided on the left and right sides of the inside of the collection hopper 4. The tops of the two sliders 8 pass through the corresponding slide grooves 9 and are fixedly connected to auxiliary plates 10. When the sliders 8 move, they drive the auxiliary plates 10 to move. A rotating assembly is provided inside the housing 5, a control assembly is provided on the top of the support plate 3, and a lifting assembly 2 is provided in the upper middle part of the inner side of the support plate 3. The lifting assembly 2 is used to facilitate the lifting and lowering of the leakage detector. The rotating assembly includes a rotating rod 17, which is rotatably connected to the front end of the inside of the housing 5. The rear end of the rotating rod 17 is fixedly connected to the driving bevel gear 18. The rotating rod 17 will drive the driving bevel gear 18 to rotate. The adjacent ends of the two threaded rods 7 pass through the outer shell 6 and the box 5 in sequence and are fixedly connected to the driven bevel gears 16. The two driven bevel gears 16 are respectively meshed with the left and right sides of the driving bevel gear 18. When the driving bevel gear 18 rotates, the driven bevel gears 16 will drive the threaded rods 7 to rotate. The front end of the rotating rod 17 passes through the box 5 and is fixedly connected to the knob 19. The knob 19 makes it convenient for the operator to rotate the rotating rod 17. The control component includes the mounting block 11. The mounting block 11 is fixedly connected to the top center of the support plate 3. The top of the mounting block 11 is fixedly connected to the control switch 12. Hollow columns 13 are fixedly connected to the four corners inside the support plate 3. Springs 14 are fixedly connected to the bottom of the hollow columns 13. Movable columns 15 are fixedly connected to the top of the springs 14. The top of the movable columns 15 is fixedly connected to the bottom of the collection hopper 4. The collection hopper 4 can drive the movable columns 15 to move downward.
[0033] Specifically, when stackers of different models and sizes need to be used, rotating knob 19 will drive rotating rod 17 to rotate, which in turn drives driving bevel gear 18 to rotate. Since driving bevel gear 18 meshes with driven bevel gear 16, driven bevel gear 16 will also start to rotate. As driven bevel gear 16 rotates, it will drive threaded rod 7 to rotate. The rotation of threaded rod 7 will cause slider 8 to move along slide groove 9. The movement of slider 8 will further drive auxiliary plate 10 to move, thereby achieving compatibility with stackers of different models and sizes. In addition, when the stacker is running, if the belt is punctured and torn, the material will spill from the tear and fall into collection hopper 4. As the material accumulates, the weight of collection hopper 4 increases, causing it to drop, thereby triggering control switch 12. Once control switch 12 is triggered, the system will immediately perform an emergency stop operation on the belt to prevent further damage and material loss, improving the practicality of the leakage detector and meeting the needs of users.
[0034] Reference Figure 1 and Figure 5 The lifting assembly 2 includes a hollow plate 201, which is fixedly connected to the upper inner part of the support frame 1. A transmission rod 202 is rotatably connected to the middle inner part of the hollow plate 201. A spur gear 203 is fixedly connected to the left and right sides of the outer wall of the transmission rod 202. The transmission rod 202 drives the spur gear 203 to rotate. Concave columns 204 are fixedly connected to the left and right sides of the bottom inner side of the hollow plate 201. A cylindrical rack 205 is slidably connected to the inner side of each of the two concave columns 204. The two cylindrical racks 205 mesh with their corresponding spur gears 203. When the spur gears 203 rotate, the cylindrical racks 205 move accordingly. The bottom end of the cylindrical rack 205... A hollow plate 201 is passed through, and the top end of a cylindrical rack 205 passes through the hollow plate 201 and is fixedly connected to a support plate 3. The cylindrical rack 205 will drive the support plate 3 to move. A drive assembly is provided inside the hollow plate 201. The drive assembly includes a worm gear 206, which is fixedly connected to the middle of the outer side of the transmission rod 202. A connecting rod 207 is rotatably connected to the bottom of the hollow plate 201. The top end of the connecting rod 207 passes through the hollow plate 201 and is fixedly connected to a worm 208. The connecting rod 207 will drive the worm 208 to rotate. The worm 208 is meshed with the worm gear 206. When the worm 208 rotates, the worm gear 206 will drive the transmission rod 202 to rotate accordingly.
[0035] Specifically, when the height of the leakage detector needs to be adjusted, the connecting rod 207 is rotated, which drives the worm gear 208 to rotate. Since the worm wheel 206 meshes with the worm gear 208, when the worm gear 208 starts to rotate, the worm wheel 206 will also rotate, driving the transmission rod 202 to rotate. The transmission rod 202 will then drive the spur gear 203 to rotate. Since the spur gear 203 meshes with the cylindrical rack 205, when the spur gear 203 rotates, the cylindrical rack 205 will move accordingly, driving the support plate 3 to move up and down. This allows for convenient and quick adjustment of the height of the leakage detector to adapt to different working needs and improves the ease of use of the leakage detector.
[0036] Reference Figure 1 and Figure 5 A handle 20 is fixedly connected to the bottom end of the connecting rod 207. The handle 20 makes it convenient for the staff to rotate the connecting rod 207. A protective sleeve 21 is fixedly connected to the outside of the handle 20. Mounting plates 22 are fixedly connected to the bottom front, rear, left and right sides of the support frame 1. A hole 23 is opened on the top of the mounting plate 22. The leakage detector can be fixed inside the hole 23 by using screws.
[0037] Specifically, the handle 20 allows the operator to rotate the connecting rod 207, the sleeve 21 allows the operator to hold the sleeve 21 more comfortably, and the mounting plate 22 can be fixed inside the hole 23 by using bolts, thus securing the leakage detector firmly.
[0038] Reference Figure 1 A support rod 24 is fixedly connected to the upper left side of the support frame 1, and an alarm 25 is fixedly connected to the top of the support rod 24. The alarm 25 can be used to provide an alarm.
[0039] Specifically, when the stacker belt tears, alarm 25 can sound an alarm, thereby alerting the staff.
[0040] Working principle: When stackers of different models and sizes need to be used, rotate knob 19. Knob 19 will drive rotating rod 17 to rotate, which in turn drives driving bevel gear 18 to rotate. Since driven bevel gear 16 meshes with driving bevel gear 18, driven bevel gear 16 will drive threaded rod 7 to rotate. At this time, slider 8 will drive auxiliary plate 10 to move, which can accommodate stackers of different models and sizes. When the belt is punctured and torn, the spilled material falls into collection hopper 4. Collection hopper 4 will descend, thereby triggering control switch 12, which can stop the belt in an emergency.
[0041] Furthermore, when the height of the leakage detector needs to be adjusted, the connecting rod 207 is rotated, which drives the worm gear 208 to rotate. Since the worm wheel 206 meshes with the worm gear 208, when the worm gear 208 rotates, the worm wheel 206 will drive the transmission rod 202 to rotate. The transmission rod 202 will then drive the spur gear 203 to rotate. Since the cylindrical rack 205 meshes with the spur gear 203, when the spur gear 203 rotates, the cylindrical rack 205 will drive the support plate 3 to move, thus making it easy to adjust the height of the leakage detector.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A special inductive material leakage detector for a stacker, comprising a support frame (1), characterized in that: The support frame (1) has a support plate (3) on its inner top. The support plate (3) has a collection hopper (4) on its upper side. The bottom of the collection hopper (4) is fixedly connected to a box (5). The bottom left and right sides of the collection hopper (4) are fixedly connected to outer shells (6). The inner sides of the two outer shells (6) are rotatably connected to threaded rods (7). The outer sides of the two threaded rods (7) are threadedly connected to sliders (8). The inner left and right sides of the collection hopper (4) are provided with sliding grooves (9). The tops of the two sliders (8) pass through the corresponding sliding grooves (9) and are fixedly connected to auxiliary plates (10). The inner side of the box (5) is provided with a rotating component. The top of the support plate (3) is provided with a control component. The upper middle part of the inner side of the support plate (3) is provided with a lifting component (2). The lifting component (2) is used to facilitate the lifting and lowering of the leakage detector.
2. The stockpile-specific inductive spill detector of claim 1, wherein: The lifting assembly (2) includes a hollow plate (201), which is fixedly connected to the upper inner part of the support frame (1). A transmission rod (202) is rotatably connected to the middle inner part of the hollow plate (201). A spur gear (203) is fixedly connected to the left and right sides of the outer wall of the transmission rod (202). A concave column (204) is fixedly connected to the left and right sides of the bottom inner side of the hollow plate (201). A cylindrical rack (205) is slidably connected to the inner side of the two concave columns (204). The two cylindrical racks (205) are respectively meshed with the corresponding spur gears (203). The bottom end of the cylindrical rack (205) penetrates the hollow plate (201), and the top end of the cylindrical rack (205) penetrates the hollow plate (201) and is fixedly connected to the support plate (3). A driving assembly is provided inside the hollow plate (201).
3. The stockpile-specific inductive spill detector of claim 1, wherein: The rotating assembly includes a rotating rod (17), which is rotatably connected to the front end of the housing (5). The rear end of the rotating rod (17) is fixedly connected to a driving bevel gear (18). The adjacent ends of the two threaded rods (7) pass through the outer shell (6) and the housing (5) in sequence and are fixedly connected to driven bevel gears (16). The two driven bevel gears (16) are respectively meshed with the left and right sides of the driving bevel gear (18). The front end of the rotating rod (17) passes through the housing (5) and is fixedly connected to a knob (19).
4. The stockpile-specific inductive spill detector of claim 1, wherein: The control component includes a mounting block (11), which is fixedly connected to the top center of the support plate (3). A control switch (12) is fixedly connected to the top of the mounting block (11). Hollow columns (13) are fixedly connected to the four corners inside the support plate (3). A spring (14) is fixedly connected to the bottom inside the hollow column (13). A movable column (15) is fixedly connected to the top of the spring (14). The top of the movable column (15) is fixedly connected to the bottom of the collection hopper (4).
5. The inductive spillage detector for a stacker as claimed in claim 2, wherein: The drive assembly includes a worm gear (206), which is fixedly connected to the middle of the outer side of the transmission rod (202). A connecting rod (207) is rotatably connected to the bottom of the hollow plate (201). The top end of the connecting rod (207) passes through the hollow plate (201) and is fixedly connected to a worm (208). The worm (208) meshes with the worm gear (206).
6. The stockpile-specific inductive spill detector of claim 5, wherein: A handle (20) is fixedly connected to the bottom end of the connecting rod (207), and a protective sleeve (21) is fixedly connected to the outside of the handle (20).
7. The stockpile-specific inductive spill detector of claim 1, wherein: The support frame (1) has mounting plates (22) fixedly connected to the bottom front and rear ends and left and right sides, and the mounting plates (22) have holes (23) on the top.
8. The stockpile-specific inductive spill detector of claim 1, wherein: A support rod (24) is fixedly connected to the upper left side of the support frame (1), and an alarm (25) is fixedly connected to the top of the support rod (24).