A locking device having a break window structure

Abstract

The utility model discloses a lock attachment device with broken window structure belongs to fire fighting equipment field, has solved the problem that lock attachment device of prior art and window interference, the technical scheme that solves this problem includes frame and rotates and sets swing arm on the frame, swing arm is close to the one end of frame and is provided with the first drive unit of drive swing arm rotation, the one end of swing arm away from frame is equipped with broken window structure and hook arm, hook arm rotatoryly connects on swing arm and has the storage state of storage in swing arm and the working condition of relative swing arm outward unfolding to form the hooking space, be equipped with the second drive unit of drive hook arm on swing arm in storage state and working condition switching, when the first drive unit drive swing arm rotation makes broken window structure broken window, hook arm is in storage state. The utility model makes lock attachment device use more flexible.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment, and in particular to a locking device with a window-breaking structure. Background Technology

[0002] Traditional rescue ladders have certain limitations in fire rescue scenarios. Specifically, operators can only reach the windowsill of the fire scene via the rescue ladder, and face significant safety risks when performing rescue operations in high-temperature flame environments. Therefore, existing rescue equipment and technologies need further improvement to enhance the safety of rescue personnel and rescue efficiency. Of course, existing technologies also include a basket-type climbing fire rescue capsule disclosed in utility model patent CN201906365U. This device includes a piston rod that can be raised to window height, with a grab hook device at the top. When the grab hook device at the top of the piston rod is raised to window height, the piston rod of the hanging arm cylinder extends, causing the hook arm to flip from a vertical position to a horizontal position, thereby using the grab hook device to break through the window glass and reach inside the window. However, the end of the hook arm cannot rotate, which may hinder the grab hook device from smoothly entering the window, thus affecting rescue efficiency and increasing operational difficulty. Utility Model Content

[0003] The purpose of this invention is to provide a locking device with a window-breaking structure, which solves the problem of interference between the existing locking device and the window, making the locking device more flexible in use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a locking device with a window-breaking structure, comprising a frame and a swing arm rotatably mounted on the frame. A first drive unit is provided at the end of the swing arm near the frame to drive the swing arm to rotate. A window-breaking structure and a hook arm are provided at the end of the swing arm away from the frame. The hook arm is rotatably connected to the swing arm and has a retracted state that is housed within the swing arm and a working state that extends outward relative to the swing arm to form a hooking space. A second drive unit is provided on the swing arm to drive the hook arm to switch between the retracted state and the working state. When the first drive unit drives the swing arm to rotate so that the window-breaking structure breaks the window, the hook arm is in the retracted state.

[0005] By adopting the above technical solution, this utility model has the following advantages: By designing the hook arm as a rotatable structure, the first drive unit can drive the swing arm to rotate to perform window breaking operations, while the second drive unit can switch the state of the hook arm to achieve an orderly connection between the window breaking function and the hooking function. During window breaking, the hook arm is retracted into the swing arm, making the overall structure more compact and reducing external protruding parts. This minimizes interference between the hook arm and the window edge, preventing interference with the window breaking action. After window breaking, the hook arm can unfold to form a stable hooking space, providing a reliable support foundation for subsequent locking operations, significantly improving the safety and operational efficiency of the device. Furthermore, the first drive unit is located at the end of the swing arm near the frame, away from the window breaking position and high-temperature or flame environments, effectively reducing the risk of thermal damage and ensuring the service life of the equipment.

[0006] Furthermore, the window-breaking structure includes a base fixed to the swing arm, and an impact head, a trigger, and an energy storage device disposed on the base. The impact head is movably disposed on the base to have an initial position and an impact position that moves relative to the initial position to shatter the glass window. The trigger is configured to respond to an external input to trigger the impact head to move from the initial position to the impact position. The energy storage device is connected to the impact head and is used to accumulate energy when the impact head returns to the initial position and to provide assistance to the impact head in moving from the initial position to the impact position when the trigger is triggered.

[0007] The aforementioned technical solution integrates a base, impact head, trigger, and energy storage device, all housed at the end of the swing arm. Its compact structure allows for seamless coordination with the swing arm and hook arm movements, preventing interference with other components. The energy storage device pre-stores energy as the impact head returns to its initial position. When the trigger responds to external input, such as a control signal, the energy storage device releases energy to assist the impact head, enabling it to move quickly to the impact position with greater impact force and shatter the glass window. This significantly improves window-breaking efficiency, especially suitable for thicker or stronger glass. Furthermore, the impact head can reciprocate between the initial and impact positions, creating a cyclical energy storage and release mechanism. This allows for repeated operations if the initial window-breaking attempt fails, increasing the success rate. Moreover, it eliminates the need for close-range manual operation, reducing the exposure risk to rescue personnel in high-temperature and flame environments.

[0008] Furthermore, the hook arm is provided with a drive protrusion. When the hook arm rotates from the retracted state to the working state, the drive protrusion pushes the impact head back to the initial position.

[0009] By employing the aforementioned technical solution, the linkage between hook arm state switching and impact head reset is achieved. No additional operating steps or drive components are required. After completing the window-breaking action, the hook arm extends and automatically resets and locks the impact head, returning it to its initial position and allowing the energy storage device to recharge, preparing for the next window-breaking action. This significantly improves the convenience and continuity of operation. Furthermore, the drive protrusion uses a mechanical linkage structure, maintaining good stability and reliability even in high-temperature flame environments. Compared to electrical or hydraulic control methods, it is less affected by high temperatures, minimizing functional abnormalities caused by thermal deformation or circuit failure, and improving the equipment's adaptability and safety in extreme environments such as fire scenes.

[0010] Furthermore, the base is equipped with an electromagnet, and the impact head is a magnetic component. When the hook arm rotates from the retracted state to the working state, the electromagnet is energized to attract the impact head back to its initial position.

[0011] Using the aforementioned technical solution, the electromagnet uses magnetic force to attract the impact head to reset. Compared with mechanical pushing and other methods, the force is more uniform and gentle, which can minimize the vibration or displacement caused by mechanical collision during the reset of the impact head, and ensure that the impact head returns to its initial position as accurately as possible, providing a stable foundation for the next window-breaking action. At the same time, the magnetic force of the electromagnet can be flexibly adjusted by the magnitude of the current, and the attraction force can be adjusted according to the actual situation, which can both ensure the reset effect and avoid damage to the components due to excessive force.

[0012] Furthermore, the energy storage component includes a first elastic element, which can store or release energy through elastic deformation.

[0013] By adopting the aforementioned technical solution, the energy transfer of elastic deformation is stable, which can reduce the impact and vibration during the energy release process, reduce the wear and tear on other components of the device, ensure the service life of the equipment, and the elastic component has strong adaptability. It can still maintain stable working performance in complex environments such as high temperature and dust in fire scenes, ensuring the reliability of energy accumulation and release.

[0014] Furthermore, the base is provided with a stop notch, the impact head is provided with a limiting rib in the circumferential direction, and a second elastic element is provided between the impact head and the base to keep the limiting rib in the tendency to be inserted into the stop notch, thereby locking the impact head in the initial position.

[0015] Using the aforementioned technical solution, firstly, the second elastic element continuously applies a force that causes the limiting rib to engage with the stop notch. This, combined with the structural fit between the stop notch and the limiting rib, forms a mechanical lock, reliably locking the impact head in its initial position. This minimizes the risk of the impact head accidentally shifting due to vibration, gravity, or other factors when the swing arm rotates, the equipment moves, or the window-breaking action is not triggered. It ensures that the impact head is in a preset energy-accumulating state before the window is broken, providing stable initial conditions for the window-breaking action. When the window needs to be broken, simply overcoming the force of the second elastic element allows the limiting rib to disengage from the stop notch. The unlocking process is simple and efficient, does not affect the rapid movement of the impact head, and balances the reliability of locking with the convenience of unlocking.

[0016] Furthermore, the trigger includes a third elastic element, a linkage mechanism, and a contact rod slidably disposed on the base. The contact rod is held in the initial position under the action of the third elastic element. The input end of the linkage mechanism is linked to the contact rod, and the output end of the linkage mechanism is linked to the limiting rib. The contact rod is moved away from the initial position by an external force to drive the limiting rib to disengage from the stop notch.

[0017] By employing the aforementioned technical solution, since the window may contain a high-temperature flame environment, the electronic control components are susceptible to heat damage or malfunction. The physical triggering method eliminates the need for electrical components, minimizing the risk of heat damage or malfunction in environments with potential high-temperature flames. This significantly improves the stability and reliability of the equipment in extreme environments such as fires. The contact rod remains stably in its initial position under the action of the third elastic element, ensuring that the limiting rib of the impact head can reliably engage with the stop notch in the non-triggered state, effectively preventing false triggering and enhancing the overall structural safety and stability. When the contact rod is subjected to external force and leaves its initial position, the linkage mechanism precisely drives the limiting rib to disengage from the stop notch, thereby triggering the release of the impact head. The impact head efficiently completes the window-breaking action under the elastic force of the first elastic element.

[0018] Furthermore, the trigger includes a control terminal and an electric push rod for driving the limit rib to disengage from the stop notch, the electric push rod being connected to the control terminal via an electrical signal.

[0019] The aforementioned technical solution achieves several advantages. First, it enables remote control, allowing rescuers to trigger the electric actuator by sending electrical signals through a control terminal without close contact with the device. This effectively avoids safety risks associated with glass shattering and high-temperature radiation during window breaking, significantly improving operational safety. Second, the electric actuator offers high precision. The control terminal allows for precise control of the actuator's extension and retraction stroke and speed, ensuring more stable drive of the limit ribs away from the stop gap and minimizing potential jamming or uneven force issues in mechanical transmission. This guarantees the reliability and consistency of the triggering action. Third, the electrical signal transmission response is rapid, especially in emergency rescue scenarios. After the control terminal issues a command, the electric actuator can immediately execute the action, reducing triggering delay and improving window breaking efficiency.

[0020] Furthermore, the impact head is provided with an annular limiting groove, and the triggering element includes a fourth elastic element, a limiting block slidably disposed on the base, and a contact rod slidably disposed on the base. The limiting block and the fourth elastic element are connected to maintain the tendency to be engaged in the annular limiting groove so that the impact head is locked in the initial position. The contact rod has a driving inclined surface that abuts against the limiting block. The contact rod is subjected to an external force to drive the limiting block to move and disengage from the annular limiting groove.

[0021] By adopting the aforementioned technical solution, firstly, the annular limiting groove can adapt to possible rotation or slight positional displacement of the impact head. Regardless of how the impact head rotates circumferentially, the limiting block can always be engaged in the annular limiting groove under the action of the fourth elastic element, ensuring stable locking of the initial position of the impact head as much as possible and avoiding locking failure due to changes in the attitude of the impact head, thus significantly improving the fault tolerance and reliability of the locking. Secondly, the contact rod abuts against the limiting block through the driving inclined surface, and the guiding force of the inclined surface directly pushes the limiting block to slide out of the annular limiting groove, eliminating the need for multi-component linkage design, making the structure simpler and more compact, reducing failure points, and the force transmission of the inclined surface is direct and efficient, which can quickly drive the limiting block to unlock when the contact rod is subjected to external force, ensuring the timeliness of the window breaking action, and further improving the response efficiency and operational stability of the device in emergency rescue scenarios.

[0022] Furthermore, the window-breaking structure includes a base fixed to the swing arm and an impact head fixed to the base.

[0023] By adopting the aforementioned technical solution, the fixed impact head enhances the connection strength between the impact head and the base, and between the base and the swing arm, minimizing problems such as loosening or displacement of movable parts due to long-term use or severe impact. This significantly improves the overall stability and fatigue resistance of the structure. The fixed impact head directly completes the window-breaking action under the drive of the swing arm, resulting in a more direct and rapid response. It does not require an additional energy storage process and can quickly adapt to emergency window-breaking needs. It also does not require an additional control structure and is not affected by high temperatures or flames, thus better meeting the needs of harsh scenarios such as fire rescue. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is an exploded view of the locking device with a window-breaking structure according to this utility model;

[0026] Figure 2 This is a partial exploded view of the locking device with a window-breaking structure according to this utility model;

[0027] Figure 3 This is a schematic diagram of the swing arm of this utility model;

[0028] Figure 4 This is a partial structural cross-sectional view of the swing arm of this utility model;

[0029] Figure 5 This is a structural schematic diagram of the swing arm of this utility model from another perspective.

[0030] Figure 6 This is a schematic diagram of the window-breaking structure of this utility model;

[0031] Figure 7 This is a structural schematic diagram of the window-breaking structure of this utility model from another perspective;

[0032] Figure 8 This is a schematic diagram of the hook arm of this utility model in its retracted state.

[0033] Figure 9 This is a schematic diagram of the window-breaking structure of this utility model;

[0034] Figure 10 This is a schematic diagram of the window-breaking structure of this utility model for breaking two windows;

[0035] Figure 11 This is a schematic diagram of the hook arm of this utility model in the working state;

[0036] Figure 12 This is a schematic diagram of the extension arm of this utility model in the third position;

[0037] Figure 13 This is a schematic diagram of the extension arm of this utility model in the second position;

[0038] Figure 14 This is a schematic diagram of the structure in other embodiments where the impact head is in the initial position;

[0039] Figure 15 This is a schematic diagram of the structure where the impact head is located at the impact position in other embodiments;

[0040] In the diagram, 10 is the frame; 20 is the swing arm; 21 is the fixed arm; 22 is the extension arm; 23 is the torsion spring; 24 is the second drive motor; 25 is the lead screw; 26 is the slider; 27 is the guide rail; 30 is the first drive motor; 31 is the worm gear reducer; 40 is the window-breaking structure; 41 is the base; 411 is the receiving groove; 42 is the impact head; 421 is the annular limiting groove; 43 is the stop notch; 44 is the energy storage element; and 441 is the first elastic element. ; 45. Limiting rib; 46. Trigger; 461. Third elastic element; 462. Linkage mechanism; 4621. Movable link; 4622. Push rod; 4623. Rotating shaft; 4624. Guide groove; 463. Contact rod; 4631. Driving inclined surface; 464. Fourth elastic element; 465. Limiting block; 47. Second elastic element; 50. Hook arm; 51. Driving protrusion; 52. Toothed structure; 60. Glass window; 61. Wall. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0042] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0043] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0044] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0045] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0046] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0047] like Figures 1 to 13 As shown, this utility model provides a locking device with a window-breaking structure, including a frame 10 and a swing arm 20 rotatably mounted on the frame 10. A first drive unit is provided at one end of the swing arm 20 near the frame 10 to drive the swing arm 20 to rotate. A window-breaking structure 40 and a hook arm 50 are provided at the other end of the swing arm 20 away from the frame 10. The hook arm 50 is rotatably connected to the swing arm 20 and has a retracted state that is housed within the swing arm 20 and a working state that is extended outward relative to the swing arm 20 to form a hooking space. A second drive unit is provided on the swing arm 20 to drive the hook arm 50 to switch between the retracted state and the working state. When the first drive unit drives the swing arm 20 to rotate so that the window-breaking structure 40 breaks the window, the hook arm 50 is in the retracted state.

[0048] By designing the hook arm 50 as a rotatable structure, the first drive unit can rotate the swing arm 20 to perform window breaking operations, while the second drive unit can switch the state of the hook arm 50 to achieve a smooth transition between window breaking and hooking functions. During window breaking, the hook arm 50 is retracted within the swing arm 20, resulting in a more compact overall structure and fewer protruding external parts. This minimizes interference between the hook arm 50 and the window edge, preventing interference with the window breaking action. After window breaking, the hook arm 50 can unfold to form a stable hooking space, providing a reliable support foundation for subsequent locking operations and significantly improving the safety and efficiency of the device. Furthermore, the first drive unit is located at the end of the swing arm 20 closest to the frame 10, away from the window breaking location and high-temperature or flame environments, effectively reducing the risk of thermal damage and ensuring the equipment's service life.

[0049] It should be noted that the first drive unit includes a first drive motor 30 and a worm gear reducer 31. The output shaft of the first drive motor 30 is fixedly connected to the worm of the worm gear reducer 31, providing continuous and stable power output. This allows for precise drive of the swing arm 20 to rotate, ensuring smooth and precise movement of the swing arm 20 during window breaking and subsequent hooking operations, meeting the requirements of different operating scenarios for the rotation angle and speed of the swing arm 20. The self-locking characteristic of the worm gear reducer 31 can also be used to ensure that the swing arm 20 remains stably in its current position.

[0050] For thicker or stronger glass windows 60, a single set of window-breaking structures 40 may require multiple impacts to break. Two, three, or even more sets of window-breaking structures 40 can be installed, mounted on multiple sets of swing arms 20, allowing force to be applied simultaneously from different positions, making it easier to overcome the structural strength of the glass and significantly improving window-breaking efficiency. Furthermore, in high-temperature environments, even if some window-breaking structures 40 experience temporary malfunctions due to extreme conditions, the remaining sets of window-breaking structures 40 can still function normally, ensuring the continuity and reliability of window-breaking operations, reducing the risk of window-breaking failure due to the failure of a single window-breaking structure 40, and further enhancing emergency response capabilities in complex high-temperature flame environments.

[0051] Specifically, the window-breaking structure 40 includes a base 41 fixed to the swing arm 20 and an impact head 42 disposed on the base 41. The impact head 42 is movably disposed on the base 41 to have an initial position retracted within the base 41 and an impact position partially extending out of the base 41 to shatter the glass window 60. This allows the impact head 42 to be in the initial position retracted within the base 41 when not in operation, which not only minimizes the risk of accidental breakage caused by accidental triggering and improves the overall safety of use, but also makes the structure more compact, facilitating the storage, transportation, and flexible operation of the equipment in narrow spaces.

[0052] It should be noted that the impact head 42 can be a conical structure. The tip of the conical structure can concentrate the impact force at a single point. Under the elastic force released by the first elastic element 441, it can instantly generate extremely high pressure, which can more efficiently shatter the glass window 60 whose strength has changed due to high temperature baking. The base 41 is provided with a receiving groove 411. When the impact head 42 is in the initial position, the impact head 42 is housed in the receiving groove 411. When the impact head 42 is in the impact position, part of the impact head 42 extends out of the receiving groove 411.

[0053] The window-breaking structure 40 also includes a trigger 46 and an energy storage member 44 disposed on a base 41. The impact head 42 is movably disposed on the base 41 to have an initial position and an impact position that moves relative to the initial position to break the glass window 60. The trigger 46 is configured to respond to an external input to trigger the impact head 42 to move from the initial position to the impact position. The energy storage member 44 is connected to the impact head 42 and is used to store energy when the impact head 42 returns to the initial position and to provide assistance to the impact head 42 to move from the initial position to the impact position when the trigger 46 is triggered. The energy storage component 44 can pre-store energy when the impact head 42 returns to its initial position. When the trigger component 46 is triggered in response to an external input, such as a control signal, the energy storage component 44 releases energy to assist the impact head 42, enabling it to move quickly to the impact position with greater impact force and shatter the glass window 60. This effectively improves the window breaking efficiency, especially suitable for thicker or stronger glass. Simultaneously, the impact head 42 can reciprocate between the initial position and the impact position, and the energy storage and release of the energy storage component 44 forms a cyclical mechanism. This facilitates repeated operations if the window breaking attempt fails, increasing the success rate. Furthermore, it eliminates the need for close-range manual operation, reducing the exposure risk to rescue personnel in high-temperature and flame environments. The trigger component 46 can respond to various external input methods, such as mechanical force, electrical signals, and magnetic signals, greatly improving the flexibility and applicability of the trigger.

[0054] The energy storage component 44 includes a first elastic element 441, which can store or release energy through elastic deformation. The energy transfer due to elastic deformation is smooth, which can reduce the impact and vibration during the energy release process, reduce the wear and tear on other components of the device, and ensure the service life of the equipment. Moreover, the first elastic element 441 has strong adaptability and can maintain stable working performance in complex environments such as high temperature and dust in fire scenes, ensuring the reliability of energy storage and release.

[0055] To keep the impact head 42 in its initial position, the base 41 is provided with a stop notch 43, and the impact head 42 is provided with a limiting rib 45 in its circumference. A second elastic element is provided between the impact head 42 and the base 41 to keep the limiting rib 45 in the stop notch 43 and lock the impact head 42 in its initial position. This avoids the impact head 42 from accidentally shifting due to vibration, gravity, or other factors when the swing arm 20 rotates, the equipment moves, or the window breaking action is not triggered. It ensures that the impact head 42 is in a preset energy accumulation state before the window breaking action, providing a stable initial condition for the window breaking action. When the window breaking action needs to be triggered, the limiting rib 45 can be disengaged from the stop notch 43 simply by overcoming the force of the second elastic element. The unlocking process is simple and efficient, does not affect the rapid movement of the impact head 42, and balances the reliability of locking and the convenience of unlocking.

[0056] It should be noted that the first elastic element 441 is a spring that pushes the impact head 42 to move along the axial direction of the impact head 42; the second elastic element is a first torsion spring that pushes the impact head 42 to rotate circumferentially and engage with the stop notch 43.

[0057] It should be noted that the base 41, the first elastic element 441, the second elastic element 47, and the impact head 42 can all be made of metal materials, such as stainless steel and aluminum alloy, which have good resistance to thermal deformation and are more suitable for harsh environments such as flame burning and high temperature radiation.

[0058] Since the interior of the window may be exposed to high-temperature flames, the electronic control components are susceptible to heat damage or malfunction. Preferably, the trigger 46 includes a third elastic element 461, a linkage mechanism 462, and a contact rod 463 slidably mounted on the base 41. This eliminates the need for electrical components and minimizes the risk of heat damage or malfunction of the electronic control components in the presence of high-temperature flames inside the window. This significantly improves the stability and reliability of the equipment in extreme environments such as fires. The contact rod 463 remains in its initial position under the action of the third elastic element 461, ensuring that the limiting rib 45 of the impact head 42 can reliably engage with the stop notch 43 in the non-triggered state, effectively preventing false triggering and improving the safety and stability of the overall structure. The input end of the linkage mechanism 462 is linked to the contact rod 463, and the output end of the linkage mechanism 462 is linked to the limiting rib 45. The contact rod 463 is moved away from the initial position by the external force so that the impact head 42 overcomes the elastic force of the second elastic element 47 and rotates, causing the limiting rib 45 to disengage from the stop notch 43, thereby triggering the release of the impact head 42. The impact head 42 efficiently completes the window breaking action under the elastic force of the first elastic element 441.

[0059] Specifically, the linkage mechanism 462 includes a movable link 4621 and a push rod 4622. The movable link 4621 is rotatably connected to the base 41 via a rotating shaft 4623. One end of the movable link 4621 is hinged to the contact rod 463, and the other end of the movable link 4621 is hinged to the push rod 4622. The base 41 is provided with a guide groove 4624. The push rod 4622 is slidably disposed in the guide groove 4624. The contact rod 463 is initially positioned to protrude from the base 41. When the contact rod 463 touches the glass, the contact rod 463 pushes the movable link 4621, causing the push rod 4622 to push the limiting rib 45 away from the stop notch 43, thereby releasing the impact head 42, generating an impact, and shattering the glass.

[0060] The swing arm 20 includes a fixed arm 21 rotatably connected to the frame 10 and an extension arm 22 slidably disposed on the fixed arm 21. The extension arm 22 has a first position extending relative to the fixed arm 21, a second position partially retracted so that the hook arm 50 hooks onto the wall 61, and a third position fully retracted to the fixed arm 21. It can flexibly adapt to different work scenario requirements, and the third position of full retraction can reduce the overall volume. The second drive unit includes a second torsion spring 23. The hook arm 50 is rotatably connected to the front end of the extension arm 22 through the second torsion spring 23. When the extension arm 22 is in the third position, the fixed arm 21 abuts against the second torsion spring 23 and pushes the second torsion spring 23 to rotate, thereby driving the hook arm 50 to rotate to the storage state, so as to avoid the hook arm 50 being exposed and causing interference when not in operation. When the extension arm 22 is in the first or second position, the fixed arm 21 disengages from the second torsion spring 23, and the hook arm 50 rotates to the working state under the reset action of the second torsion spring 23. No electrical control components are required, and it still has good stability and reliability in complex environments such as high temperature and humidity.

[0061] The hook arm 50 is equipped with a drive protrusion 51. When the hook arm 50 rotates from the retracted state to the working state, the drive protrusion 51 pushes the limiting rib 45 to move and engage with the stop notch 43. This achieves linkage between the state switching of the hook arm 50 and the reset of the impact head 42, without the need for additional operating steps or drive components. After completing the window breaking action, the hook arm 50 unfolds and automatically resets and locks the impact head 42, returning it to its initial position and allowing the first elastic element 441 to recharge, preparing for the next window breaking action. This significantly improves the convenience and continuity of operation. Furthermore, the drive protrusion 51 adopts a mechanical linkage mechanism, which maintains good stability and reliability even in high-temperature flame environments. Compared with electrical or hydraulic control methods, it is less affected by high temperatures, minimizing functional abnormalities caused by thermal deformation or circuit failure, and improving the adaptability and safety of the equipment in extreme environments such as fire scenes.

[0062] It should be noted that after the driving protrusion 51 pushes the limiting rib 45 to the target position, the impact head 42 rotates due to the action of the second elastic element 47, causing the limiting rib 45 to be engaged in the stop notch 43.

[0063] It should be noted that when the hook arm 50 is in the retracted state, the limiting rib 45 located in the stop notch 43 and the drive protrusion 51 are spaced apart. When the impact head 42 moves from the initial position to the impact position, the drive protrusion 51 will not interfere with the limiting rib 45.

[0064] To improve the stability of the locking, the fixed arm 21 and the hook arm 50 are provided with toothed structures 52. The toothed structures 52 can be embedded in the contact surface by teeth to form a stronger mechanical engagement, which can prevent the hook part from slipping and falling off as much as possible, and ensure that the locking state is stable and reliable.

[0065] Due to varying distances and positions of the windows, the window-breaking structure 40 is mounted on the extension arm 22. The extension arm 22 can slide relative to the fixed arm 21 and switch between different positions, with the window-breaking structure 40 moving synchronously. This allows for flexible adjustment of the distance and position relative to the window, adapting to different heights and depths of window breaking requirements and improving the accuracy of the operation. When the extension arm 22 is in its third position, the window-breaking structure 40 is retracted along with it, reducing overall space requirements and facilitating equipment storage and protection.

[0066] The fixed arm 21 is equipped with a second drive motor 24, a lead screw 25, a slider 26, and a guide rail 27. The guide rail 27 and the lead screw 25 extend in the same direction. The extension arm 22 is slidably connected to the guide rail 27. The output end of the second drive motor 24 is fixedly connected to the lead screw 25. The slider 26 is threadedly connected to the lead screw 25, and the slider 26 is fixedly connected to the extension arm 22. The second drive motor 24 drives the lead screw 25 to rotate, so that the slider 26 moves and drives the extension arm 22 to move synchronously.

[0067] When using, such as Figure 8 As shown, the device runs to the edge of the windowsill via an external structure, such as a ladder. Figure 9 As shown and Figure 10 As shown, the first drive motor 30 drives the swing arm 20 to rotate. When the contact rod 463 touches the glass, the contact rod 463 pushes the movable connecting rod 4621, causing the push rod 4622 to push the limiting rib 45 out of the stop notch 43, thereby releasing the impact head 42. Under the elastic force of the first elastic element 441, the impact head 42 generates an impact, shattering the glass. The first drive motor 30 continues to drive the swing arm 20 to rotate. Figure 11As shown, after the window is broken, the second drive motor 24 starts, driving the lead screw 25 to rotate, causing the slider 26 to move and thus driving the extension arm 22 to move synchronously. At this time, the fixed arm 21 disengages from the torsion spring 23, and the hook arm 50 rotates to the working state under the reset action of the second torsion spring 23. The drive protrusion 51 pushes the limiting rib 45 to move and engages with the stop notch 43, resetting and locking the impact head 42. When the extension arm 22 is in the third position, the second drive motor 24 stops, and then, as... Figure 12 As shown, the first drive motor 30 continues to run. When the toothed structure 52 of the fixed arm 21 adheres to the wall 61, the first drive motor 30 stops. Afterwards, as... Figure 13 As shown, the second drive motor 24 rotates in the opposite direction, driving the lead screw 25 to move in the opposite direction until the hook arm 50 is in contact with the wall 61. The second drive motor 24 then stops, locking the device onto the wall 61.

[0068] It is understood that in other embodiments, such as Figure 14 and Figure 15 As shown, the impact head 42 is provided with an annular limiting groove 421. The trigger member 46 includes a fourth elastic member 464, a limiting block 465 slidably disposed on the base 41, and a contact rod 463 slidably disposed on the base 41. The limiting block 465 and the fourth elastic member 464 are connected to maintain the tendency to be engaged in the annular limiting groove 421, thereby locking the impact head 42 in the initial position. The contact rod 463 has a driving inclined surface 4631 that abuts against the limiting block 465. The contact rod 463 is subjected to an external force to drive the limiting block 465 to move and disengage from the annular limiting groove 421. First, the annular limiting groove 421 can accommodate possible rotation or slight positional shifts of the impact head 42. Regardless of how the impact head 42 rotates circumferentially, the limiting block 465 can always be engaged in the annular limiting groove 421 under the action of the fourth elastic element 464, ensuring stable locking of the initial position of the impact head 42 as much as possible and avoiding locking failure due to changes in the posture of the impact head 42, thus significantly improving the fault tolerance and reliability of the locking. Second, the contact rod 463 abuts against the limiting block 465 through the driving inclined surface 4631. The guiding force of the driving inclined surface 4631 directly pushes the limiting block 465 to slide out of the annular limiting groove 421, eliminating the need for multi-component linkage design, making the structure simpler and more compact, reducing failure points, and the force transmission of the inclined surface is direct and efficient, which can quickly drive the limiting block 465 to unlock when the contact rod 463 is subjected to external force, ensuring the timeliness of the window breaking action, and further improving the response efficiency and operational stability of the device in emergency rescue scenarios.

[0069] Understandably, in other embodiments, the trigger includes a control terminal and an electric push rod for driving the limiting rib to disengage from the stop notch. The electric push rod is connected to the control terminal via an electrical signal. First, it enables remote control, allowing rescuers to trigger the electric push rod by sending an electrical signal through the control terminal without close contact with the device. This effectively avoids safety risks caused by glass shattering and high-temperature radiation at the moment of window breaking, significantly improving operational safety. Second, the electric push rod has high precision. The control terminal can precisely control the extension and retraction stroke and speed of the push rod, thereby more stably driving the limiting rib to disengage from the stop notch and minimizing potential jamming or uneven force issues in mechanical transmission, thus ensuring the reliability and consistency of the triggering action. Third, the electrical signal transmission response is rapid, especially in emergency rescue scenarios. After the control terminal issues a command, the electric push rod can immediately execute the action, reducing triggering delay and improving window breaking efficiency.

[0070] Understandably, in other embodiments, the window-breaking structure also includes an electric actuator, such as a motor, for driving the impact head to switch between the initial position and the impact position. The electric drive structure offers greater controllability, reduces reliance on mechanical energy storage components, and enables more precise control and rapid response of the impact head, improving the stability and automation of the window-breaking action. Its driving process can be precisely adjusted electronically to control the movement speed and force of the impact head, flexibly adapting to different glass materials and thicknesses, ensuring effective window breaking while minimizing unnecessary damage to surrounding structures. Furthermore, the electric actuator can be used in conjunction with remote control systems to achieve remote window breaking, playing a crucial role in scenarios where close-range operation is inconvenient, enhancing operational flexibility and safety.

[0071] Understandably, in other embodiments, the window-breaking structure includes a base fixed to the swing arm and an impact head fixed to the base. This improves the connection strength between the impact head and the base, and between the base and the swing arm, minimizing problems such as loosening or displacement of movable parts due to long-term use or severe impact. This significantly improves the overall stability and fatigue resistance of the structure. The fixed impact head directly completes the window-breaking action under the action of the swing arm, resulting in a more direct and rapid response without the need for an additional energy storage process. It can quickly adapt to emergency window-breaking needs and does not require an additional control structure. It is not affected by high temperatures or flames, and can better adapt to the needs of harsh scenarios such as fire rescue.

[0072] Understandably, in other embodiments, the extension arm can also be equipped with a motor to drive the rotation of the hook arm. The motor drive can achieve precise control of the hook arm rotation and flexibly adjust the extension angle and speed of the hook arm according to actual operation needs. This ensures that the hook arm can accurately reach the desired position and form a stable hooking space under different wall thicknesses, window sizes, and other scenarios, thereby improving the adaptability of the locking operation.

[0073] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A locking device having a break window structure, comprising a housing (10) and a swing arm (20) rotatably arranged on the housing (10), characterized in that, The swing arm (20) is provided with a first drive unit for driving the swing arm (20) to rotate at one end near the frame (10). The swing arm (20) is provided with a window breaking structure (40) and a hook arm (50) at the other end away from the frame (10). The hook arm (50) is rotatably connected to the swing arm (20) and has a retracted state that is housed in the swing arm (20) and a working state that is extended outward relative to the swing arm (20) to form a hooking space. The swing arm (20) is provided with a second drive unit for driving the hook arm (50) to switch between the retracted state and the working state. When the first drive unit drives the swing arm (20) to rotate so that the window breaking structure (40) breaks the window, the hook arm (50) is in the retracted state.

2. The locking device with a window-breaking structure according to claim 1, characterized in that, The window-breaking structure (40) includes a base (41) fixed to the swing arm (20), and an impact head (42), a trigger (46), and an energy storage device (44) disposed on the base (41). The impact head (42) is movably disposed on the base (41) to have an initial position and an impact position that moves relative to the initial position to break the glass window (60). The trigger (46) is configured to respond to an external input to trigger the impact head (42) to move from the initial position to the impact position. The energy storage device (44) is connected to the impact head (42) and is used to store energy when the impact head (42) returns to the initial position and to provide assistance to the impact head (42) to move from the initial position to the impact position when the trigger (46) is triggered.

3. The locking device with a window-breaking structure according to claim 2, characterized in that, The hook arm (50) is provided with a driving protrusion (51). When the hook arm (50) rotates from the storage state to the working state, the driving protrusion (51) pushes the impact head (42) back to the initial position.

4. The locking device with a window-breaking structure according to claim 2, characterized in that, An electromagnet is provided on the base (41), and the impact head is a magnetic component. When the hook arm (50) rotates from the storage state to the working state, the electromagnet is energized to attract the impact head (42) back to the initial position.

5. The locking device with a window-breaking structure according to claim 2, characterized in that, The energy storage component (44) includes a first elastic element (441), which can store or release energy through elastic deformation.

6. The locking device with a window-breaking structure according to claim 2, characterized in that, The base (41) is provided with a stop notch (43), the impact head (42) is provided with a limiting rib (45) in the circumferential direction, and a second elastic element (47) is provided between the impact head (42) and the base (41) to keep the limiting rib (45) in the tendency to be inserted into the stop notch (43) and lock the impact head (42) in the initial position.

7. The locking device with a window-breaking structure according to claim 6, characterized in that, The trigger (46) includes a third elastic element (461), a linkage mechanism (462), and a contact rod (463) slidably disposed on the base (41). The contact rod (463) is held in the initial position under the action of the third elastic element (461). The input end of the linkage mechanism (462) is linked to the contact rod (463), and the output end of the linkage mechanism (462) is linked to the limiting rib (45). The contact rod (463) leaves the initial position under the action of an external force to drive the limiting rib (45) to disengage from the stop notch (43).

8. The locking device with a window-breaking structure according to claim 6, characterized in that, The trigger (46) includes a control terminal and an electric push rod for driving the limit rib (45) to disengage from the stop notch (43), the electric push rod being connected to the control terminal via an electrical signal.

9. The locking device with a window-breaking structure according to claim 2, characterized in that, The impact head (42) is provided with an annular limiting groove (421). The trigger (46) includes a fourth elastic element (464), a limiting block (465) slidably disposed on the base (41), and a contact rod (463) slidably disposed on the base (41). The limiting block (465) and the fourth elastic element (464) are connected to have a tendency to be locked into the annular limiting groove (421) so as to lock the impact head (42) in the initial position. The contact rod (463) has a driving inclined surface (4631) that abuts against the limiting block. The contact rod (463) is subjected to an external force to drive the limiting block (465) to move and disengage from the annular limiting groove (421).

10. The locking device with a window-breaking structure according to claim 1, characterized in that, The window-breaking structure (40) includes a base (41) fixed on the swing arm (20) and an impact head (42) fixed on the base (41).

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