Anti-falling device of telescopic belt conveyor
By installing slotted plates and locking devices on both sides of the telescopic belt conveyor, and using electromagnets to control the locking tongue to engage with the limit slot, the problem of falling caused by the failure of the lifting device is solved, ensuring the safety of equipment and personnel.
Patent Information
- Application Number
- CN202520460441.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing telescopic belt conveyors may fall due to damage to the lifting device or failure of the control circuit, causing safety accidents such as damage to goods or injury to personnel.
The telescopic belt conveyor is equipped with a slot plate and a locking device on both sides, including a slot plate, a base, an electromagnet, a traction assembly, a locking tongue, and a limiting support plate. The electromagnet controls the locking tongue to engage in the limiting slot to prevent it from falling.
It effectively prevents telescopic belt conveyors from falling due to malfunction of the lifting device, protecting the safety of goods and personnel and avoiding accidents.
Smart Images
Figure CN223792312U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying equipment technology, and in particular to a fall prevention device for a telescopic belt conveyor. Background Technology
[0002] Telescopic belt conveyors are commonly used cargo conveying equipment in the logistics field. Telescopic belt conveyors usually have lifting devices such as hydraulic cylinders and air cylinders on both sides of the machine body to adjust the conveying angle.
[0003] However, in actual use, sometimes due to accidents such as damage to the lifting device or failure of the control circuit, the lifting device loses its lifting force, which causes the telescopic belt conveyor to fall, resulting in damage to goods or even crushing workers, causing a safety accident. Utility Model Content
[0004] The purpose of this application is to provide a fall prevention device for a telescopic belt conveyor, which solves the technical problem in the prior art where the lifting device loses its lifting force due to accidents such as damage to the lifting device or failure of the control circuit, causing the telescopic belt conveyor to fall, resulting in damage to goods or even crushing workers and causing safety accidents.
[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:
[0006] A fall prevention device for a telescopic belt conveyor, used to prevent the telescopic belt conveyor from falling, includes a slot plate, a base, and a locking device;
[0007] Both sides of the telescopic belt conveyor are equipped with a slot plate, and the slot plate is provided with a plurality of limiting slots;
[0008] The telescopic belt conveyor has a base fixedly installed on both sides of the ground. The base is equipped with the locking device, which includes a mounting base, an electromagnet, a pulling component, a locking tongue, and a rotating shaft.
[0009] The mounting base is fixedly mounted on the base. The electromagnet and the rotating shaft are both fixedly mounted on the mounting base, with the rotating shaft located below the electromagnet. The end of the engaging tongue away from the slot plate is rotatably connected to the rotating shaft, and the end near the slot plate is connected to the pulling assembly. The other end of the pulling assembly is connected to the electromagnet. The bottom of the end of the engaging tongue near the slot plate has a chamfered corner. The limiting support plate is vertically mounted on the base and has a support through hole. The bottom end of the support through hole is located below the engaging tongue.
[0010] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, a plurality of the limiting slots are distributed in an arc shape at equal intervals on the slot plate.
[0011] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, the electromagnet is a push-pull type electromagnet, and the pulling component is connected to the moving iron core of the electromagnet.
[0012] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, the traction assembly includes a rotating pin, a first tie rod, and a second tie rod;
[0013] The rotating pin is installed through the moving iron core of the electromagnet. One end of the first pull rod and the second pull rod are rotatably connected to the rotating pin, and the other end of each is rotatably connected to the locking tongue. The first pull rod and the second pull rod are located on both sides of the locking tongue.
[0014] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, the two slot plates and the two engaging devices are symmetrically distributed on both sides of the telescopic belt conveyor.
[0015] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, buffer pads are provided at the bottom end of the support through hole and the bottom end of the locking tongue.
[0016] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, an annular rotating groove is provided on the rotating shaft, and the locking tongue is rotatably connected to the annular rotating groove.
[0017] In the anti-fall device for a telescopic belt conveyor described in this application embodiment, a stabilizing connecting plate is further included, and the two ends of the stabilizing connecting plate are respectively connected to the two bases.
[0018] Compared with the prior art, the embodiments of this application have the following beneficial effects:
[0019] As can be seen from the above technical solution, the anti-fall device for a telescopic belt conveyor provided in this application embodiment, by installing a slotted plate with several limiting slots on both sides of the telescopic belt conveyor, a base, and a locking device composed of a mounting base, an electromagnet, a pulling assembly, a locking tongue, a limiting support plate, and a rotating shaft, wherein the bottom end of the locking tongue is provided with a chamfer, and the limiting support plate is provided with a support through hole for the locking tongue to pass through, when the lifting device malfunctions and is about to cause the telescopic belt conveyor to fall, the electromagnet releases the pulling assembly, and the locking tongue rotates downward under the action of gravity and locks into the limiting slot, while the limiting support plate abuts against the locking tongue to prevent the telescopic belt conveyor from falling. This solves the technical problem in the prior art where the lifting device loses its lifting force due to accidents such as damage to the lifting device or failure of the control circuit, which causes the telescopic belt conveyor to fall, resulting in damage to goods or even crushing workers and causing safety accidents. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings are not intended to be drawn to scale, and for clarity, not every component will be labeled in each drawing. The drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. Wherein:
[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application.
[0022] Figure 2 This is a schematic diagram of the card slot plate in an embodiment of this application.
[0023] Figure 3 This is a schematic diagram of the internal structure of the locking device in the embodiments of this application.
[0024] Figure 4 This is a schematic diagram of the structure of the locking tongue in the embodiments of this application.
[0025] Figure 5 This is a schematic diagram of the structure of the rotating shaft in an embodiment of this application.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1-Telescopic belt conveyor, 2-Slot plate, 3-Base, 4-Clamping device, 5-Limiting slot, 6-Mounting seat, 7-Electromagnet, 8-Clamping tongue, 9-Limiting support plate, 10-Rotating shaft, 11-Chamfered angle, 12-Rotating pin, 13-First tie rod, 14-Second tie rod, 15-Buffer pad, 16-Annular rotating groove, 17-Stable connecting plate, 18-Supporting through hole. Detailed Implementation
[0028] Telescopic belt conveyors are usually equipped with lifting devices such as hydraulic cylinders and air cylinders on both sides of the machine body to adjust the conveying angle. However, in actual use, sometimes due to accidents such as damage to the lifting device or failure of the control circuit, the lifting device loses its lifting force, causing the telescopic belt conveyor to fall, which may crush the goods or even crush the workers, resulting in a safety accident.
[0029] In view of this, this application provides an anti-fall device for a telescopic belt conveyor. The concept involves installing a slotted plate with several limiting slots on both sides of the telescopic belt conveyor, a base, and a locking device composed of a mounting base, an electromagnet, a pulling assembly, a locking tongue, a limiting support plate, and a rotating shaft. The bottom end of the locking tongue has a chamfered angle, and the limiting support plate has a support through hole for the locking tongue to pass through. When the lifting device malfunctions and is about to cause the telescopic belt conveyor to fall, the electromagnet releases the pulling assembly, and the locking tongue rotates downward under gravity and locks into the limiting slot. Simultaneously, the limiting support plate abuts against the locking tongue to prevent the telescopic belt conveyor from falling. This solves the technical problem in the prior art where accidents such as damage to the lifting device or control circuit failure cause the lifting device to lose its lifting force, leading to the telescopic belt conveyor falling, damaging goods, or even injuring workers, resulting in safety accidents.
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0035] This application provides a fall prevention device for a telescopic belt conveyor, such as... Figures 1 to 5 As shown. A fall prevention device for a telescopic belt conveyor 1, used to prevent the telescopic belt conveyor 1 from falling, includes a slot plate 2, a base 3, and a locking device 4.
[0036] The slot plate 2, the base 3, and the engaging device 4 are all installed at one end of the telescopic belt conveyor 1 near the lifting device.
[0037] Both sides of the telescopic belt conveyor 1 are equipped with a slot plate 2, and the slot plate 2 is provided with a plurality of limiting slots 5.
[0038] Specifically, the two slot plates 2 are symmetrically distributed on both sides of the telescopic belt conveyor 1, and a number of limiting slots 5 are distributed in an arc shape at equal intervals on the slot plates 2, that is, the number of limiting slots 5 are distributed in an arc shape, and the distance between two adjacent limiting slots 5 is equal.
[0039] The telescopic belt conveyor 1 has a base 3 fixedly installed on both sides of the ground. The base 3 is provided with the locking device 4. The locking device 4 includes a mounting base 6, an electromagnet 7, a pulling assembly, a locking tongue 8, a limiting support plate 9, and a rotating shaft 10. The mounting base 6 is fixedly installed on the base 3. The electromagnet 7 and the rotating shaft 10 are both fixedly installed on the mounting base 6, and the rotating shaft 10 is located below the electromagnet 7. The end of the locking tongue 8 away from the slot plate 2 is rotatably connected to the rotating shaft 10, and the end close to the slot plate 2 is connected to the pulling assembly. The other end of the pulling assembly is connected to the electromagnet 7. The bottom of the end of the locking tongue 8 close to the slot plate 2 is provided with a chamfered corner 11. The limiting support plate 9 is vertically installed on the base 3 and has a supporting through hole 18. The bottom end of the supporting through hole 18 is located below the locking tongue 8.
[0040] Specifically, the two engaging devices 4 are symmetrically distributed on both sides of the telescopic belt conveyor 1. The electromagnet 7 is a push-pull type electromagnet. The pulling assembly is connected to the moving iron core of the electromagnet 7. The pulling assembly includes a rotating pin 12, a first pull rod 13, and a second pull rod 14. The rotating pin 12 is installed through the moving iron core of the electromagnet 7. One end of each of the first pull rod 13 and the second pull rod 14 is rotatably connected to the rotating pin 12, and the other end of each is rotatably connected to the engaging tongue 8. The first pull rod 13 and the second pull rod 14 are located on both sides of the engaging tongue 8.
[0041] The engaging tongue 8 passes through the support through hole 18 at one end near the slot plate 2. When the engaging tongue 8 rotates downward, the limiting support plate 9 (the bottom end of the support through hole 18) limits the engaging tongue 8. In actual use, the electromagnet 7 can be connected to the control system of the telescopic belt conveyor 1. When the telescopic belt conveyor 1 is lifted upward under the action of the lifting device, the electromagnet 7 is not energized. At this time, the engaging tongue 8 can swing freely up and down around the rotation axis 10. Since the bottom of the engaging tongue 8 near the slot plate 2 is provided with the chamfered angle 11, the engaging tongue 8 will not prevent the telescopic belt conveyor 1 from being lifted. When the telescopic belt conveyor 1 is stable at a certain set height, the electromagnet 7 is not energized. At this time, the engaging tongue 8 is engaged in a certain limiting slot 5, and the bottom end of the engaging tongue 8 is supported by the limiting slot 5. The support plate 9 (the bottom end of the support hole 18) is used to prevent the telescopic conveyor belt 1 from falling accidentally. When the telescopic conveyor belt 1 descends, the electromagnet 7 is energized, and its moving iron core retracts. The pulling assembly lifts the end of the locking tongue 8 near the slot plate 2. At this time, the locking tongue 8 separates from the slot plate 2, so it does not hinder the descent of the telescopic conveyor belt 1. When the lifting device of the telescopic conveyor belt 1 malfunctions and causes an accidental fall, the slot plate 2 falls downward with the telescopic conveyor belt 1, the electromagnet 7 is de-energized, and the locking tongue 8 is in a free state. Under its own gravity, the locking tongue 8 rotates downward to engage with the limiting slot 5. At the same time, the limiting support plate 9 (the bottom end of the support hole 18) abuts against the locking tongue 8, preventing the locking tongue 8 from continuing to rotate downward, thereby preventing the telescopic conveyor belt 1 from falling further.
[0042] In some preferred embodiments, a buffer pad 15 is provided at the bottom end of the support through hole 18 and the bottom end of the locking tongue 8. By providing the buffer pad 15, direct hard contact between the limiting support plate 9 and the locking tongue 8 is prevented, which effectively improves the service life of the device.
[0043] In some preferred embodiments, the rotating shaft 10 is provided with an annular rotating groove 16, and the locking tongue 8 is rotatably connected to the annular rotating groove 16. By providing the annular rotating groove 16, the locking tongue 8 will not slide left or right on the rotating shaft 10, so that the locking tongue 8 can be stably locked into the limiting groove 5 during long-term use, thereby improving the stability of the device.
[0044] In some preferred embodiments, a stabilizing connecting plate 17 is also included. The two ends of the stabilizing connecting plate 17 are respectively connected to the two bases 3. By setting the stabilizing connecting plate 17, the two bases 3 and the two locking devices 4 are connected as one unit, thereby improving the overall stability of the device.
[0045] In summary, the anti-fall device for a telescopic belt conveyor provided in this application embodiment, by installing a slotted plate with several limiting slots on both sides of the telescopic belt conveyor, a base, and a locking device composed of a mounting base, an electromagnet, a pulling assembly, a locking tongue, a limiting support plate, and a rotating shaft, wherein the bottom end of the locking tongue is provided with a chamfered angle, and the limiting support plate is provided with a support through hole for the locking tongue to pass through, when the lifting device malfunctions and is about to cause the telescopic belt conveyor to fall, the electromagnet releases the pulling assembly, and the locking tongue rotates downward under the action of gravity and locks into the limiting slot, while the limiting support plate abuts against the locking tongue to prevent the telescopic belt conveyor from falling. This solves the technical problem in the prior art where the lifting device loses its lifting force due to accidents such as damage to the lifting device or failure of the control circuit, resulting in the telescopic belt conveyor falling, causing the telescopic belt conveyor to crush goods or even crush workers, leading to safety accidents.
[0046] The above provides a detailed description of a fall prevention device for a telescopic belt conveyor provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A fall prevention device for a telescopic belt conveyor, used to prevent the telescopic belt conveyor from falling, characterized in that, Includes a card slot plate, a base, and a locking device; Both sides of the telescopic belt conveyor are equipped with a slot plate, and the slot plate is provided with a plurality of limiting slots; The telescopic belt conveyor has a base fixedly installed on both sides of the ground. The base is equipped with the locking device, which includes a mounting base, an electromagnet, a pulling component, a locking tongue, a limiting support plate, and a rotating shaft. The mounting base is fixedly mounted on the base. The electromagnet and the rotating shaft are both fixedly mounted on the mounting base, with the rotating shaft located below the electromagnet. The end of the engaging tongue away from the slot plate is rotatably connected to the rotating shaft, and the end near the slot plate is connected to the pulling assembly. The other end of the pulling assembly is connected to the electromagnet. The bottom of the end of the engaging tongue near the slot plate has a chamfered corner. The limiting support plate is vertically mounted on the base and has a support through hole. The bottom end of the support through hole is located below the engaging tongue.
2. The anti-fall device for a telescopic belt conveyor as described in claim 1, characterized in that, Several of the aforementioned limiting slots are distributed in an arc shape at equal intervals on the slot plate.
3. The anti-fall device for a telescopic belt conveyor as described in claim 1, characterized in that, The electromagnet is a push-pull type electromagnet, and the pulling component is connected to the moving iron core of the electromagnet.
4. The anti-fall device for a telescopic belt conveyor as described in claim 3, characterized in that, The traction assembly includes a rotating pin, a first tie rod, and a second tie rod; The rotating pin is installed through the moving iron core of the electromagnet. One end of the first pull rod and the second pull rod are rotatably connected to the rotating pin, and the other end of each is rotatably connected to the locking tongue. The first pull rod and the second pull rod are located on both sides of the locking tongue.
5. The anti-fall device for a telescopic belt conveyor as described in claim 1, characterized in that, The two slot plates and the two engaging devices are symmetrically distributed on both sides of the telescopic belt conveyor.
6. The anti-fall device for a telescopic belt conveyor as described in claim 1, characterized in that, Both the bottom end of the supporting through hole and the bottom end of the engaging tongue are provided with buffer pads.
7. The anti-fall device for a telescopic belt conveyor as described in claim 1, characterized in that, The rotating shaft is provided with an annular rotating groove, and the locking tongue is rotatably connected to the annular rotating groove.
8. The anti-fall device for a telescopic belt conveyor as described in claim 1, characterized in that, It also includes a stabilizing connecting plate, the two ends of which are respectively connected to the two bases.