A steel wire rope slack rope detection device

Abstract

This utility model relates to the field of lifting machinery technology, specifically disclosing a wire rope slack / breakage detection device. The device includes: a mounting bracket with a trigger switch mounted on it; a guide plate extending through the mounting bracket and equipped with a limit component; a pre-tensioning member fitted onto the limit component, one end of which is in contact with the mounting bracket, and the other end of which is in contact with the mounting bracket; a guide wheel located at the end of the guide plate away from the pre-tensioning member; and a trigger component located between the guide wheel and the trigger switch and connected to the guide plate. This utility model has the advantages of simple structure, low cost, and small footprint.

Description

Technical Field

[0001] This utility model relates to the field of lifting machinery technology, and in particular to a wire rope slack and breakage detection device. Background Technology

[0002] Mechanical parking equipment commonly uses two lifting methods: "motor + wire rope" and "motor + chain". For mechanical parking equipment using the "motor + wire rope" lifting method, the condition of the wire rope (tightness or breakage) directly affects the safety performance of the parking equipment. Therefore, it is a standard requirement that the equipment has a wire rope loosening and breakage detection function.

[0003] Existing rope breakage detection devices mostly use round steel rods for the sliding mechanism, requiring rollers to assist in the up-and-down movement of the round steel and reduce its own rotation. The overall width is also relatively large. Since rope breakage detection is usually installed inside the longitudinal beam, the greater the width, the smaller the parking space. Furthermore, an additional fixing structure is needed below the round steel to provide a mounting base for the spring. Secondly, the detection switch also needs to be installed separately, fixed with other brackets, and only when a trigger rod set on the round steel contacts the detection switch can it perform the rope breakage detection function. In short, existing technologies suffer from complex structures and bulky dimensions. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a wire rope slack and breakage detection device, which has the advantages of simple structure, low cost and small space occupation.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A wire rope slack and breakage detection device, comprising:

[0007] Mounting bracket, wherein a trigger switch is provided on the mounting bracket;

[0008] A guide plate is provided, which extends through the mounting bracket, and a limit component is provided on the guide plate;

[0009] A preloaded component is sleeved on the limiting assembly, with one end of the preloaded component in contact with the mounting and the other end in contact with the mounting bracket.

[0010] Guide wheel, the guide wheel being disposed at the end of the guide plate away from the preload member;

[0011] A trigger element is disposed between the guide wheel and the trigger switch and connected to the guide plate.

[0012] Compared with the prior art, this application uses a guide plate instead of the round steel in the prior art. The guide plate passes through the mounting bracket. Since the guide plate is a plate structure, a limiting structure is formed between the guide plate and the mounting bracket, so that the guide plate will not rotate. Therefore, there is no need to set up an additional structure to limit the rotation of the guide plate, which effectively reduces the overall volume of the device. The overall structure is simple and the cost is effectively reduced.

[0013] As a preferred embodiment of this utility model, the mounting bracket includes a fixing part, a first through part, and a second through part. The fixing part is connected to the first through part and the second through part respectively. Both the first through part and the second through part are provided with through holes. The shape and size of the through holes correspond to the shape and size of the guide plate. The guide plate is disposed through the first through part and the second through part respectively through the through holes.

[0014] Using the above scheme, the guide plate is provided through the first through part and the second through part respectively through through holes, and the shape and size of the through holes correspond to the shape and size of the guide plate. When the guide plate is in the through holes, the hole wall of the through holes will limit the guide plate and prevent the guide plate from rotating, which effectively improves the stability of the structure.

[0015] As a preferred embodiment of the present invention, the mounting bracket further includes a protective shell, which is connected to the first through portion and the second through portion respectively. A protective cavity is formed between the protective shell, the fixing portion, the first through portion and the second through portion, and the trigger switch and the trigger element are both located in the protective cavity.

[0016] By adopting the above-described solution, the protective shell provides additional protection for the trigger switch and trigger element, preventing damage to sensitive components from the external environment and improving the overall reliability and service life of the device. Simultaneously, the formation of the protective cavity helps reduce the intrusion of dust and impurities, keeping the inside of the device clean.

[0017] As a preferred embodiment of this utility model, the limiting component includes a limiting post, a limiting groove is provided on the guide plate, the limiting post is disposed on the groove wall of the limiting groove, the pre-tightening member is sleeved on the limiting post, one end of the pre-tightening member is in contact with the groove wall of the limiting groove, and the other end is in contact with the mounting bracket.

[0018] By adopting the above solution, the setting of the limiting through groove and the limiting post can provide installation space and installation foundation for the pretensioner, without the need to add an extra structure to provide an installation foundation for the pretensioner, effectively reducing the space occupied and making the overall structure simpler.

[0019] As a preferred embodiment of this utility model, the pre-tightening component includes a pressure spring, which is sleeved on the limiting assembly. One end of the pressure spring is in contact with the guide plate, and the other end is in contact with the mounting bracket.

[0020] The above-mentioned solution uses a pressure spring as a pretensioner, which can provide a stable pretension force to ensure that the guide plate can maintain a stable position when the wire rope is taut. At the same time, it can respond quickly when the wire rope becomes loose or breaks, so that the triggering element contacts the trigger switch to trigger the detection signal.

[0021] As a preferred embodiment of this utility model, the trigger switch includes a micro switch, which is disposed in the protective cavity and connected to the fixing part, and the micro switch is located between the trigger member and the pre-tightening member.

[0022] By adopting the above-mentioned solution, placing the microswitch inside the protective cavity can avoid the problem of reduced lifespan of the microswitch due to external environmental factors. Secondly, the small size and high sensitivity of the microswitch enable the device to detect the movement of the guide plate more accurately, thereby issuing a signal to stop the equipment in a timely manner.

[0023] As a preferred embodiment of this utility model, the triggering element includes a trigger rod, which is disposed on the guide plate.

[0024] Using the above scheme, the trigger rod acts as the trigger element, directly connected to the guide plate. When the guide plate moves, it can quickly trigger the micro switch, achieving a rapid response. This design simplifies the triggering mechanism and improves the reliability and maintainability of the device.

[0025] As a preferred embodiment of this utility model, a limiting ring groove is provided on the guide wheel, and an anti-detachment rod is provided below the guide wheel. The anti-detachment rod is connected to the guide plate and is used to prevent the wire rope from falling out of the limiting ring groove.

[0026] The above-mentioned design, with its limiting ring groove and anti-detachment rod on the guide wheel, effectively prevents the wire rope from falling off the guide wheel during operation, thus improving the safety and stability of the device. At the same time, this design also reduces the likelihood of the wire rope detachment causing the rope breakage detection device to malfunction.

[0027] The aforementioned wire rope slack and breakage detection device has the following beneficial effects: Through integrated and compact design, the guide plate replaces the round steel in the prior art, which effectively solves the problem that the round steel will rotate without additional fixing structure in the prior art, thus improving the stability of the structure; secondly, the guide plate itself is provided with a limiting through groove and a limiting post to provide installation space and a mounting base for the pressure spring, which can effectively simplify the structure, make the overall structure of the device simpler, reduce costs, and effectively reduce the overall space occupied by the device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a wire rope slack and breakage detection device according to the present invention;

[0029] Figure 2 This is a right view of a wire rope slack and breakage detection device according to the present invention;

[0030] Figure 3 This is a top view of a wire rope slack and breakage detection device according to the present invention;

[0031] Figure 4 This is a schematic diagram of the guide plate in the wire rope slack and breakage detection device of this utility model;

[0032] In the diagram: 1. Mounting bracket; 11. Fixing part; 12. First through part; 13. Protective shell; 14. Protective cavity; 15. Through hole; 16. Second through part; 2. Trigger switch; 3. Guide plate; 4. Limiting assembly; 41. Limiting post; 42. Limiting through groove; 5. Pre-tightening component; 6. Guide wheel; 61. Limiting ring groove; 7. Trigger; 8. Anti-detachment rod.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] 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.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a device for detecting loose or broken wire ropes.

[0038] Reference Figure 1 and Figure 2In one embodiment of this utility model, a wire rope slack / breakage detection device includes: a mounting bracket 1, a guide plate 3, a pretensioner 5, a guide wheel 6, and a trigger 7. A trigger switch 2 is provided on the mounting bracket 1. The guide plate 3 passes through the mounting bracket 1 and is provided with a limit assembly 4. The pretensioner 5 is sleeved on the limit assembly 4, with one end of the pretensioner 5 in contact with the mounting bracket and the other end in contact with the mounting bracket 1. The guide wheel 6 is located at the end of the guide plate 3 away from the pretensioner 5, and a limit annular groove 61 is formed on the guide wheel 6. An anti-detachment rod 8 is provided below the guide wheel 6, and the anti-detachment rod 8 is threadedly connected to the guide plate 3. 8 is used to prevent the wire rope from falling out of the limiting ring groove 61. In this embodiment, a bolt is used as the anti-detachment rod 8. The triggering element 7 includes a triggering rod, which is disposed between the guide wheel 6 and the trigger switch 2 and connected to the guide plate 3. In this embodiment, a bolt is used as the triggering element 7 and is connected to the guide plate 3 by a threaded connection. In some other embodiments, other rigid rod-like objects can also be used as triggering rods, such as metal rods or plastic rods, as long as the triggering rod can be fixed on the guide plate 3 and the trigger switch can be activated when the triggering rod touches the trigger switch. The specific type of triggering rod is not limited here. This application uses a guide plate 3 instead of the round steel in the prior art. The guide plate 3 passes through the mounting bracket 1. Since the guide plate 3 is a plate structure, a limiting structure is formed between the guide plate 3 and the mounting bracket 1, preventing the guide plate 3 from rotating. This eliminates the need for an additional structure to restrict the rotation of the guide plate 3, effectively reducing the overall volume of the device. The overall structure is simple and the cost is effectively reduced. The trigger rod, as the trigger element 7, is directly connected to the guide plate 3. When the guide plate 3 moves, it can quickly trigger the micro switch to achieve a fast response. This design simplifies the triggering mechanism and improves the reliability and maintainability of the device. The design of the limiting ring groove 61 and the anti-detachment rod 8 on the guide wheel 6 effectively prevents the wire rope from falling off the guide wheel 6 during operation, improving the safety and stability of the device. At the same time, this design also reduces equipment failures and safety hazards caused by wire rope detachment.

[0039] Reference Figure 1 , Figure 2 and Figure 4In one embodiment, the mounting bracket 1 includes a fixing part 11, a first through part 12, and a second through part 16. The fixing part 11 is connected to both the first through part 12 and the second through part 16. In this embodiment, the fixing part 11 and the second through part 16 are integrally formed, specifically as a bent component. One bent surface of the bent component is the fixing part 11, and the other bent surface is the second through part 16. The first through part 12 is a plate and is welded onto the fixing part 11. In other embodiments, the fixing part 11 and the second through part 16 can be two independent components. For example, the fixing part 11, the first through part 12, and the second through part 16 can all be plates, and the first through part 12 and the second through part 16 can be welded onto the fixing part 11. Alternatively, the fixing part 11 can also be a columnar fixing component, such as a metal tube or a metal column. The first through-part 12 or the second through-part 16 can be a sleeve or a plate. In this case, the first through-part 12 and the second through-part 16 can be connected to the fixing part 11 by welding or bolting. It is worth noting that if the first through-part 12 or the second through-part 16 is a sleeve, the shape and size of the through hole in the sleeve also need to correspond to the cross-sectional shape and size of the guide plate. Therefore, as long as the first through-part 12 and the second through-part 16 can provide a foundation for the through-installation of the guide plate, the specific shape of the fixing part 11, the first through-part 12 and the second through-part 16 are not restricted here. The first through-part 12 and the second through-part 16 are both provided with through holes 15. The shape and size of the through holes 15 correspond to the shape and size of the guide plate 3. The guide plate 3 is set through the first through-part 12 and the second through-part 16 respectively through the through holes 15. The guide plate 3 is provided through the through hole 15, which passes through the first through part 12 and the second through part 16 respectively. The shape and size of the through hole 15 correspond to the shape and size of the guide plate 3. When the guide plate 3 is inside the through hole 15, the hole wall of the through hole 15 will limit the guide plate 3 so that the guide plate 3 will not rotate, which effectively improves the stability of the structure.

[0040] Reference Figure 1In one embodiment, to provide protection for the trigger switch 2 and the trigger element 7 and improve their service life, the mounting bracket 1 further includes a protective shell 13. The protective shell 13 is bolted to the first through portion 12 and the second through portion 16, respectively. A protective cavity 14 is formed between the protective shell 13, the fixing portion 11, the first through portion 12, and the second through portion 16, and the trigger switch 2 and the trigger element 7 are both located within the protective cavity 14. The protective shell 13 provides additional protection for the trigger switch 2 and the trigger element 7, preventing damage to sensitive components from the external environment and improving the overall reliability and service life of the device. At the same time, the formation of the protective cavity 14 also helps to reduce the intrusion of dust and impurities, keeping the inside of the device clean.

[0041] Reference Figure 1 , Figure 2 and Figure 4 In one embodiment, the limiting component 4 includes a limiting post 41. A limiting groove 42 is formed on the guide plate 3, and the limiting post 41 is disposed on the groove wall of the limiting groove 42. The axial direction of the limiting post 41 is the same as the movement direction of the guide plate 3. A pre-tensioning member 5 is sleeved on the limiting post 41, with one end of the pre-tensioning member 5 abutting against the groove wall of the limiting groove 42 and the other end abutting against the mounting bracket 1. In this embodiment, the pre-tensioning member 5 is a pressure spring, which is sleeved on the limiting component 4. One end of the pressure spring abuts against the guide plate 3 and the other end abuts against the mounting bracket 1. By setting the limiting groove 42 and the limiting post 41, installation space and installation foundation can be provided for the pre-tensioning member 5, eliminating the need for additional structures to provide an installation foundation for the pre-tensioning member 5, effectively reducing the space occupied and making the overall structure simpler. Using a pressure spring as the pretensioner 5 can provide a stable pretension force, ensuring that the guide plate 3 can maintain a stable position when the wire rope is taut. At the same time, it can respond quickly when the wire rope becomes loose or breaks, so that the trigger 7 contacts the trigger switch 2 to trigger the detection signal.

[0042] Reference Figure 1 and Figure 2 In one embodiment, the trigger switch 2 includes a micro switch, which is disposed within the protective cavity 14 and mounted on the fixing part 11 with screws. The micro switch is located between the trigger member 7 and the pre-tightening member 5. In other embodiments, a limit switch or pressure sensor from the prior art can also be used as the trigger switch 2, as long as it can make contact with the trigger rod to send a trigger signal. The specific type of trigger switch 2 is not limited here. Placing the micro switch within the protective cavity 14 can avoid the problem of reduced lifespan of the micro switch due to external environmental factors. Secondly, the small size and high sensitivity of the micro switch enable the device to detect the movement of the guide plate 3 more accurately, thereby issuing a signal to stop the equipment in a timely manner.

[0043] By integrating and compacting the design, the guide plate 3 is used to replace the round steel in the existing technology, which effectively solves the problem that the round steel will rotate without additional fixing structure, thus improving the stability of the structure. Secondly, the guide plate 3 itself is provided with a limiting slot 42 and a limiting post 41 to provide installation space and a mounting base for the pressure spring, which can effectively simplify the structure, make the overall structure of the device simpler, reduce costs, and effectively reduce the overall space occupied by the device.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wire rope slack and breakage detection device, characterized in that, include: Mounting bracket, wherein a trigger switch is provided on the mounting bracket; A guide plate is provided, which extends through the mounting bracket, and a limit component is provided on the guide plate; A preloaded component is sleeved on the limiting assembly, with one end of the preloaded component in contact with the mounting and the other end in contact with the mounting bracket. Guide wheel, the guide wheel being disposed at the end of the guide plate away from the preload member; A trigger element is disposed between the guide wheel and the trigger switch and connected to the guide plate.

2. The wire rope slack and breakage detection device according to claim 1, characterized in that: The mounting bracket includes a fixing part, a first through part, and a second through part. The fixing part is connected to the first through part and the second through part respectively. Both the first through part and the second through part are provided with through holes. The shape and size of the through holes correspond to the shape and size of the guide plate. The guide plate is disposed through the first through part and the second through part respectively through the through holes.

3. The wire rope slack and breakage detection device according to claim 2, characterized in that: The mounting bracket also includes a protective shell, which is connected to the first through portion and the second through portion respectively. A protective cavity is formed between the protective shell, the fixing portion, the first through portion and the second through portion, and the trigger switch and the trigger element are both located in the protective cavity.

4. The wire rope slack and breakage detection device according to claim 1, characterized in that: The limiting component includes a limiting post, a limiting groove is provided on the guide plate, the limiting post is disposed on the groove wall of the limiting groove, the pre-tightening member is sleeved on the limiting post, one end of the pre-tightening member is in contact with the groove wall of the limiting groove, and the other end is in contact with the mounting bracket.

5. The wire rope slack and breakage detection device according to claim 1, characterized in that: The pretensioning component includes a pressure spring, which is sleeved on the limiting assembly. One end of the pressure spring is in contact with the guide plate, and the other end is in contact with the mounting bracket.

6. The wire rope slack and breakage detection device according to claim 3, characterized in that: The trigger switch includes a micro switch, which is disposed in the protective cavity and connected to the fixing part. The micro switch is located between the trigger member and the pre-tightening member.

7. The wire rope slack and breakage detection device according to claim 1, characterized in that: The triggering element includes a trigger rod, which is disposed on the guide plate.

8. The wire rope slack and breakage detection device according to claim 1, characterized in that: The guide wheel is provided with a limiting ring groove, and an anti-detachment rod is provided below the guide wheel. The anti-detachment rod is connected to the guide plate and is used to prevent the wire rope from falling out of the limiting ring groove.

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