High-strength fire-fighting rope locking device

By designing a fire rope locking device with a rotating rod, rotating plate, limiting plate and spring, the problem of time-consuming operation of existing devices in smoke or dark environments is solved, and the effects of rapid installation and reduced misoperation rate are achieved.

CN224245353UActive Publication Date: 2026-05-15JIANGSHAN DONGDUN FIRE PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSHAN DONGDUN FIRE PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-08
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing high-strength fire rope locking devices take a long time to operate in smoke or dark environments and have a high rate of misoperation, which affects rapid escape or rescue.

Method used

A high-strength fire rope locking device was designed. By setting up a rotating rod, rotating plate, limiting plate, spring and locking block, the fire rope can be automatically limited and installed with one hand, simplifying the operation process.

Benefits of technology

It enables quick installation and unlocking of fire rope locks, reduces the rate of misoperation, and improves operational efficiency in smoke or dark environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-strength fire-fighting rope lock catch device, which relates to the field of lock catch devices and comprises a lock catch main body, a rotating base is arranged at one end of the lock catch main body, a rotating rod is movably mounted in the rotating base, a rotating plate is arranged at one end of the rotating rod, and a limiting plate is fixedly mounted at one end of the rotating plate. A limiting plate is arranged at one end of the lock catch body, a limiting groove is formed in the top of the limiting plate, a limiting base is further arranged at one end of the lock catch body, a clamping groove is formed in the limiting base, and an inner cavity is formed in the side edge of the limiting base. The high-strength fire-fighting rope lock catch device solves the problem that an existing high-strength fire-fighting rope lock catch device in the background technology is poor in using effect, by arranging the rotating rod, when a fire-fighting rope is arranged in the lock catch body in a sleeved mode, the rotating rod can rotate towards one side by pressing the rotating rod, the rotating rod is movably installed in the rotating base arranged at one end of the lock catch body, and therefore the fire-fighting rope can rotate towards one side. And then the fire-fighting rope is sleeved in the lock catch main body.
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Description

Technical Field

[0001] This utility model relates to the field of locking devices, specifically a high-strength fire rope locking device. Background Technology

[0002] In the field of fire rescue, fire rope carabiners play a crucial role as a key component. With the acceleration of urbanization, high-rise and super high-rise buildings are increasing, and the frequency and complexity of fire accidents are also rising. In these fire rescue scenarios, fire rope carabiners are important tools to ensure the safety of firefighters and trapped personnel. They are often used for tasks such as high-altitude rescue, rope climbing, and personnel transfer, helping relevant personnel to quickly and safely escape from dangerous areas. With the widespread use of fire rope carabiners, some limitations of traditional fire rope carabiners in practical use have gradually become apparent.

[0003] An existing high-strength fire rope locking device typically consists of a set of locking bodies. A set of limiting rods is movably installed at one end of the locking body. The outer wall of the limiting rods is threaded and fitted with a set of nuts. At the same time, the other end of the locking body is also threaded. When the fire rope is fitted into the locking body, the nuts are rotated upward along the threads so that the nuts can fix the limiting rods and prevent the limiting rods from rotating.

[0004] However, for existing high-strength fire rope locking devices, the nut locking structure requires manual rotation of 3-5 turns to complete the installation and unlocking, which takes a long time. Moreover, when the operator is in a smoke or dark environment, the operator's vision is obstructed, which increases the operator's error rate and causes the locking to lock again, which is not conducive to the operator's rapid escape or rescue. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a high-strength fire rope locking device to solve the technical problem mentioned in the background art of poor performance of existing high-strength fire rope locking devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength fire rope locking device, comprising a locking body, a rotating base at one end of the locking body, a rotating rod movably installed within the rotating base, a rotating plate at one end of the rotating rod, a limiting plate fixedly installed at one end of the rotating plate, a limiting groove formed at the top of the limiting plate, a limiting base at one end of the locking body, a slot formed within the limiting base, an inner cavity formed on the side of the limiting base, a spring fixedly installed on one side of the inner cavity, a sliding plate connected to one end of the spring, a locking block formed on one side of the sliding plate, and a cover plate fixedly installed on the top of the sliding plate.

[0007] By adopting the above technical solution, the problem of poor performance of existing high-strength fire rope locking devices mentioned in the background art is solved. By incorporating a rotating rod, when the fire rope is looped inside the locking body, pressing the rotating rod allows it to rotate to one side. The rotating rod is movably mounted within a rotating base at one end of the locking body. After the fire rope is looped inside the locking body, the rotating rod is rotated back to one side, allowing the rotating plate and limiting plate fixed at one end of the rotating rod to fit into the slot. The limiting base has an internal cavity, one side of which is fixed... A spring is fixedly installed, with one end of the spring connected to a sliding plate. A locking block is provided at one end of the sliding plate, and both the limiting plate and the locking block have inclined surfaces on one side. When the limiting plate contacts the locking block, the limiting plate can push the locking block to one side. After the limiting plate rotates to the designated position, the locking block can be locked in the limiting groove opened at the top of the limiting plate by the push of the spring, which can limit the limiting plate. Thus, the rotating rod, rotating plate and limiting plate can achieve automatic limiting after installation, which simplifies the installation process of the device and also enables one-handed installation of the device, which is conducive to the widespread use of the device.

[0008] The present invention is further configured such that a reset torsion spring is provided inside the rotating base, and one end of the reset torsion spring is in contact with the rotating rod.

[0009] Preferably, a reset torsion spring is provided inside the rotating base, with one end of the reset torsion spring contacting the rotating rod, so that the rotating rod can automatically reset after rotating to one side, thus improving the practicality of the device.

[0010] The present invention is further configured such that a protruding plate is fixedly installed in the slot, and the protruding plate is fitted to the bottom surface of the limiting plate.

[0011] Preferably, a protruding plate is fixedly installed in the slot, and the protruding plate is fitted to the bottom surface of the limiting plate, which can limit the limiting plate and make the limiting plate stably installed in the slot.

[0012] The present invention is further configured such that the cross-sectional area of ​​the slot is greater than the cross-sectional area of ​​the limiting plate, and the cross-sectional area of ​​the limiting plate is greater than the cross-sectional area of ​​the rotating plate.

[0013] Preferably, by setting the cross-sectional area of ​​the card slot to be larger than the cross-sectional area of ​​the limiting plate, and setting the cross-sectional area of ​​the limiting plate to be larger than the cross-sectional area of ​​the rotating plate, collisions between the limiting plate and the rotating plate during installation are avoided, thus preventing the normal use of the device.

[0014] The present invention is further configured such that smooth grooves are provided on both sides of the limiting base, and the cover plate is fitted into the smooth grooves.

[0015] Preferably, by providing smooth grooves on both sides of the limiting base, and fitting the cover plate with the smooth grooves, the cover plate can be slidably installed on one side of the limiting base, thereby covering the through groove on one side of the inner cavity.

[0016] The present invention is further configured such that one side of the cover plate is a circular arc surface, and the circular arc surface has the same curvature as the limiting base.

[0017] Preferably, by setting one side of the cover plate as an arc surface, with the arc surface having the same curvature as the limiting base, the cover plate and the limiting base can be smoothly set, improving the overall aesthetics of the device.

[0018] The present invention is further configured such that multiple sets of protruding strips are fixedly installed on the top of the cover plate, and the surface of the protruding strips is coated with an anti-slip coating.

[0019] Preferably, by fixing multiple sets of protruding strips on the top of the cover plate, and coating the surface of the protruding strips with an anti-slip coating, the friction between the worker and the cover plate can be increased, making it easier for the block to slide.

[0020] The present invention is further configured such that one end of the card block is provided with an inclined surface, and one side of one end of the limiting plate is also provided with an inclined surface.

[0021] Preferably, by setting an inclined surface at one end of the card block and also setting an inclined surface on one side of one end of the limiting plate, when the limiting plate contacts the card block, the set inclined surface can better push the card block to one side, avoiding collision between the limiting plate and the card block, thereby affecting the normal use of the device.

[0022] The present invention is further configured such that the length of the cover plate is greater than the length of the through groove at the top of the inner cavity, and the bottom of the cover plate is smoothly disposed.

[0023] Preferably, by setting the length of the cover plate to be greater than the length of the through groove at the top of the inner cavity, the cover plate can play a covering role, and the bottom of the cover plate is smoothly set to facilitate the sliding of the cover plate.

[0024] The present invention is further configured such that one end of the card block is fitted into the card slot, and the top of the limiting plate does not contact the card slot.

[0025] Preferably, by fitting one end of the card block into the card slot, the card block can be fitted into the limiting groove, and the top of the limiting plate does not contact the card slot, thus avoiding collision between the limiting plate and the card slot, which would affect the normal use of the device.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, by providing a locking body, a rotating base, a rotating rod, a rotating plate, a limiting plate, a limiting groove, a limiting base, a slot, an inner cavity, a smooth groove, a spring, a sliding plate, a locking block, a cover plate, and a protruding strip, solves the problem of poor performance of existing high-strength fire rope locking devices mentioned in the background art. By providing a rotating rod, when the fire rope is looped inside the locking body, pressing the rotating rod allows it to rotate to one side. The rotating rod is movably installed in the rotating base at one end of the locking body. After the fire rope is looped inside the locking body, the rotating rod is rotated back to one side, causing the rotating plate and limiting plate fixedly installed at one end of the rotating rod to... The device can be fitted into a slot. The limiting base has an internal cavity, and a spring is fixedly installed on one side of the cavity. One end of the spring is connected to a sliding plate, and one end of the sliding plate is equipped with a locking block. Both the limiting plate and the locking block have inclined surfaces on one side. When the limiting plate contacts the locking block, the limiting plate can push the locking block to one side. After the limiting plate rotates to the designated position, the locking block can be locked in the limiting groove opened on the top of the limiting plate by the push of the spring, which can limit the limiting plate. This allows the rotating rod, rotating plate and limiting plate to achieve automatic limiting after installation, which simplifies the device installation process and enables one-handed installation, which is conducive to the widespread use of the device.

[0028] 2. This utility model features a sliding plate with a cover plate fixedly installed on its top. When the locking block limits the limiting plate, the cover plate can cover the through groove on one side of the inner cavity, preventing external media from entering the inner cavity and affecting the normal use of the device. At the same time, multiple sets of protrusions are provided on one side of the cover plate. When the limiting plate needs to be released, the protrusions can increase the friction between the operator and the cover plate, facilitating the sliding of the locking block and improving the practicality of the device. Attached Figure Description

[0029] Figure 1 This is a first structural schematic diagram of the present invention;

[0030] Figure 2 This is a vertical sectional view of the main structure of this utility model;

[0031] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0032] Figure 4 This is a cross-sectional view of the main structure of this utility model;

[0033] Figure 5 This utility model Figure 4 Enlarged view of B in the middle;

[0034] Figure 6 This is a detailed drawing of the skateboard structure of this utility model;

[0035] Figure 7 This is a detailed drawing of the rotating rod structure of this utility model;

[0036] Figure 8 This is a schematic diagram of the second structure of the present invention;

[0037] Figure 9 This utility model Figure 8 A magnified view of C.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Lock body; 2. Rotating base; 3. Rotating rod; 4. Rotating plate; 5. Limiting plate; 51. Limiting groove; 6. Limiting base; 61. Slot; 62. Inner cavity; 63. Smooth groove; 7. Spring; 8. Slide plate; 9. Locking block; 10. Cover plate; 101. Protrusion. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] The embodiments of this utility model will be described below based on its overall structure.

[0042] Please see Figures 1-9 The device includes a locking body 1, with a rotating base 2 at one end. A rotating rod 3 is movably installed inside the rotating base 2. The rotating rod 3 can restrain the fire rope, preventing it from falling out of the locking body 1 and affecting the normal use of the device. A rotating plate 4 is provided at one end of the rotating rod 3, and a limit plate 5 is fixedly installed at one end of the rotating plate 4. A limit groove 51 is opened on the top of the limit plate 5. A limit base 6 is also provided at one end of the locking body 1. The device is provided with a slot 61 and an inner cavity 62 on the side of the limiting base 6. A spring 7 is fixedly installed on one side of the inner cavity 62. One end of the spring 7 is connected to a slide plate 8. A locking block 9 is provided on one side of the slide plate 8. When the locking block 9 is fitted into the limiting slot 51, it can limit the limiting plate 5. A cover plate 10 is fixedly installed on the top of the slide plate 8. When the locking block 9 is locked in the limiting slot 51, the cover plate 10 can cover the through slot on one side of the inner cavity 62.

[0043] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 A reset torsion spring is installed inside the rotating base 2. One end of the reset torsion spring contacts the rotating rod 3. By installing a reset torsion spring inside the rotating base 2 and having one end of the reset torsion spring contact the rotating rod 3, the rotating rod 3 can automatically reset after rotating to one side, thus improving the practicality of the device.

[0044] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 4 A protruding plate is fixedly installed in the slot 61. The protruding plate is fitted to the bottom surface of the limiting plate 5. By fixing the protruding plate in the slot 61 and fitting it to the bottom surface of the limiting plate 5, the limiting plate 5 can be limited, so that the limiting plate 5 can be stably installed in the slot 61.

[0045] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 and Figure 5 The cross-sectional area of ​​the slot 61 is greater than that of the limiting plate 5, and the cross-sectional area of ​​the limiting plate 5 is greater than that of the rotating plate 4. By setting the cross-sectional area of ​​the slot 61 to be greater than that of the limiting plate 5, and the cross-sectional area of ​​the limiting plate 5 to be greater than that of the rotating plate 4, collisions between the limiting plate 5 and the rotating plate 4 during installation are avoided, which would affect the normal use of the device.

[0046] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The limiting base 6 has smooth grooves 63 on both sides, and the cover plate 10 is fitted with the smooth grooves 63. By providing smooth grooves 63 on both sides of the limiting base 6 and fitting the cover plate 10 with the smooth grooves 63, the cover plate 10 can be slidably installed on one side of the limiting base 6, thereby covering the through groove on one side of the inner cavity 62.

[0047] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 One side of the cover plate 10 is set as an arc surface, and the arc surface has the same curvature as the limiting base 6. By setting one side of the cover plate 10 as an arc surface, and the arc surface has the same curvature as the limiting base 6, the cover plate 10 and the limiting base 6 can be smoothly set, improving the overall aesthetics of the device.

[0048] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 Multiple sets of protruding strips 101 are fixedly installed on the top of the cover plate 10, and the surface of the protruding strips 101 is coated with an anti-slip coating. By fixing multiple sets of protruding strips 101 on the top of the cover plate 10 and coating the surface of the protruding strips 101 with an anti-slip coating, the friction between the operator and the cover plate 10 can be increased, which facilitates the sliding of the locking block 9.

[0049] For details regarding the above embodiments, please refer to [link / reference]. Figure 6 and Figure 7One end of the locking block 9 is set as an inclined surface, and one side of one end of the limiting plate 5 is also set as an inclined surface. By setting one end of the locking block 9 as an inclined surface and one side of one end of the limiting plate 5 is also set as an inclined surface, when the limiting plate 5 contacts the locking block 9, the set inclined surface can better push the locking block 9 to one side, avoiding collision between the limiting plate 5 and the locking block 9, thereby affecting the normal use of the device.

[0050] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 6 The length of the cover plate 10 is greater than the length of the top through groove of the inner cavity 62. The bottom of the cover plate 10 is smoothly set. By setting the length of the cover plate 10 to be greater than the length of the top through groove of the inner cavity 62, the cover plate 10 can play a covering role. The bottom of the cover plate 10 is smoothly set, which facilitates the sliding of the cover plate 10.

[0051] For details regarding the above embodiments, please refer to [link / reference]. Figure 9 One end of the card block 9 is fitted into the card slot 61, and the top of the limiting plate 5 does not contact the card slot 61. By fitting one end of the card block 9 into the card slot 61, the card block 9 can be fitted into the limiting groove 51, and the top of the limiting plate 5 does not contact the card slot 61, thus avoiding collision between the limiting plate 5 and the card slot 61, which would affect the normal use of the device.

[0052] In practical operation, this utility model works as follows: By pressing the rotating rod 3, the rotating rod 3 can be rotated to one side. The rotating rod 3 is movably installed in the rotating base 2 set at one end of the locking body 1. Then, the fire rope is looped in the locking body 1. After the fire rope is looped, the rotating rod 3 is rotated back to one side, so that the rotating plate 4 and the limiting plate 5 fixedly installed at one end of the rotating rod 3 can be fitted into the slot 61. The slot 61 is opened in the limiting base 6 fixedly installed at one end of the locking body 1. The limiting base 6 also has an internal opening. The device has an inner cavity 62, on one side of which a spring 7 is fixedly installed. One end of the spring 7 is connected to a slide plate 8, and one end of the slide plate 8 is provided with a locking block 9. Both the limiting plate 5 and the locking block 9 have inclined surfaces on one side. When the limiting plate 5 contacts the locking block 9, the limiting plate 5 can push the locking block 9 to one side. After the limiting plate 5 rotates to the designated position, the locking block 9 can be locked in the limiting groove 51 opened on the top of the limiting plate 5 by the push of the spring 7, thereby playing a limiting role for the limiting plate 5.

[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-strength fire rope locking device, comprising a locking body (1), characterized in that: One end of the latch body (1) is provided with a rotating base (2), a rotating rod (3) is movably installed in the rotating base (2), a rotating plate (4) is provided at one end of the rotating rod (3), a limiting plate (5) is fixedly installed at one end of the rotating plate (4), a limiting groove (51) is opened on the top of the limiting plate (5), a limiting base (6) is also provided at one end of the latch body (1), a slot (61) is opened in the limiting base (6), an inner cavity (62) is opened on the side of the limiting base (6), a spring (7) is fixedly installed on one side of the inner cavity (62), a slide plate (8) is connected to one end of the spring (7), a locking block (9) is provided on one side of the slide plate (8), and a cover plate (10) is fixedly installed on the top of the slide plate (8).

2. The high-strength fire rope locking device according to claim 1, characterized in that: A reset torsion spring is provided inside the rotating base (2), and one end of the reset torsion spring is in contact with the rotating rod (3).

3. The high-strength fire rope locking device according to claim 1, characterized in that: A protruding plate is fixedly installed in the slot (61), and the protruding plate is fitted to the bottom surface of the limiting plate (5).

4. The high-strength fire rope locking device according to claim 1, characterized in that: The cross-sectional area of ​​the slot (61) is greater than the cross-sectional area of ​​the limiting plate (5), and the cross-sectional area of ​​the limiting plate (5) is greater than the cross-sectional area of ​​the rotating plate (4).

5. A high-strength fire rope locking device according to claim 1, characterized in that: The limiting base (6) has smooth grooves (63) on both sides, and the cover plate (10) is fitted with the smooth grooves (63).

6. A high-strength fire rope locking device according to claim 1, characterized in that: One side of the cover plate (10) is set as an arc surface, and the arc surface has the same curvature as the limiting base (6).

7. A high-strength fire rope locking device according to claim 1, characterized in that: The top of the cover plate (10) is fixedly installed with multiple sets of protrusions (101), and the surface of the protrusions (101) is coated with an anti-slip coating.

8. A high-strength fire rope locking device according to claim 1, characterized in that: One end of the card block (9) is set as an inclined surface, and one side of one end of the limiting plate (5) is also set with an inclined surface.

9. A high-strength fire rope locking device according to claim 1, characterized in that: The length of the cover plate (10) is greater than the length of the top through groove of the inner cavity (62), and the bottom of the cover plate (10) is smoothly disposed.

10. A high-strength fire rope locking device according to claim 1, characterized in that: One end of the card block (9) is fitted into the card slot (61), and the top of the limiting plate (5) does not contact the card slot (61).