Manual fire alarm button device with alarm and reset functions

Abstract

The invention provides a manual fire alarm button device with alarm and reset functions, the device comprises an upper shell assembly, a lower shell assembly and a reset key, the upper shell assembly and the lower shell assembly are fixedly connected, the reset key is used for restoring the initial state of the device, and the upper shell assembly comprises an upper shell, a sliding block button, a reset connecting rod and a telescopic spring. The lower shell assembly comprises a lower shell, a microswitch and a reset spring, a sliding block button, a reset connecting rod and a telescopic spring are contained in the upper shell, the reset connecting rod and the sliding block button are in linkage through assembly, and the two ends of the telescopic spring abut against the sliding block button and the upper shell respectively; a microswitch and a reset spring are contained in the lower shell, the microswitch is used for sending an alarm signal when the switch is closed, and the two ends of the reset spring abut against the sliding block button and the lower shell respectively. According to the embodiment of the invention, the convenience and reliability of alarm and reset operation can be improved.

Description

Technical Field

[0001] This application relates to the field of fire alarm technology, and in particular to a manual fire alarm button device with alarm and reset functions. Background Technology

[0002] In a fire alarm system, the manual fire alarm button is one of the core triggering components. Its function is to send a fire signal to the fire control panel in the fire control room by manually pressing the button when the fire detector (such as a smoke detector or a temperature detector) does not respond in time due to the unclear initial characteristics of the fire (such as smoldering fire or local small fire), or when personnel discover the fire before the detector. This will then initiate the subsequent alarm procedure and buy time for fire fighting.

[0003] Existing manual fire alarm buttons have a relatively complex structure, often using multi-stage linkages or gears for transmission. This not only makes them prone to failure due to environmental factors but also increases production costs. In addition, some existing rotary trigger products require two steps—pressing and rotating—to activate the alarm. In the emergency and chaotic situation at a fire scene, this can easily lead to operational errors and delays in triggering the alarm.

[0004] Therefore, it is urgent to find a solution for how to provide a manual fire alarm button device that is simple in structure and easy to operate. Summary of the Invention

[0005] This application provides a manual fire alarm button device with alarm and reset functions. It has a simple structure and is easy to operate, taking into account both the convenience of alarm and the safety of reset.

[0006] This application provides a manual fire alarm button device with alarm and reset functions. The device includes: an upper shell assembly, a lower shell assembly, and a reset key. The upper shell assembly and the lower shell assembly are fixedly connected. The reset key is used to restore the device to its initial state. The upper shell assembly includes an upper shell, a slider button, a reset linkage, and a telescopic spring. The lower shell assembly includes a lower shell, a micro switch, and a reset spring, wherein: The upper shell houses the slider button, the reset link, and the telescopic spring. The reset link and the slider button are linked by assembly. The slider button is provided with a first positioning post. The telescopic spring is sleeved on the first positioning post of the slider button, and the two ends of the telescopic spring abut against the slider button and the upper shell respectively. When the telescopic spring is compressed and released, it provides sliding elastic force to the slider button. The lower housing contains the micro switch and the reset spring. The micro switch is used to send an alarm signal when the switch is closed. The lower housing is provided with a second positioning post. The reset spring is sleeved on the second positioning post of the lower shell, and the two ends of the reset spring abut against the slider button and the lower shell respectively. When the reset spring is compressed and released, it provides a reset elastic force to the slider button. The reset key is a rod-shaped structure used to apply a pushing force to rotate the reset linkage, thereby driving the slider button to reset and restore the device to its initial state.

[0007] Optionally, the upper shell is provided with a keyhole for inserting the reset key, an upper shell slide rail that cooperates with the slider button, and a sloping locking position; The lower shell is provided with a limiting post to restrict the downward distance of the slider button.

[0008] Optionally, after the slider button is installed in the upper shell slide rail, it is held in place by the telescopic spring and locked into the inclined plate slot, and the slider button and the inclined plate slot are engaged by the inclined plate.

[0009] Optionally, the first end of the reset linkage is connected to the rotating shaft of the slider button via a C-shaped structure to achieve linkage; The second end of the reset link extends into the interior of the lower housing, and when the slider button is reset, the reset link works in conjunction with the reset key to achieve linkage.

[0010] Optionally, both the upper shell and the lower shell are provided with support positions, and the support positions are provided with semi-circular grooves for supporting and fixing the reset connecting rod; The reset link has a fulcrum shaft in the middle. The fulcrum shaft is limited by the support positions of the upper shell and the lower shell, so the fulcrum shaft becomes the rotation fulcrum of the reset link.

[0011] Optionally, the lower shell assembly further includes a target motherboard, on which the micro switch is provided. The micro switch has a trigger spring, which is used to close the micro switch when squeezed, and the circuit of the target motherboard is turned on to send the alarm signal.

[0012] Optionally, the slider button is provided with a structural rib, which is used to press the trigger spring of the micro switch when the slider button slides in the first direction.

[0013] Optionally, when the slider button is subjected to a pressing force, the slider button and the inclined plate generate a first component force in a second direction, and the slider button generates a second component force in a third direction; When the slider button slides in the second direction under the action of the first component force, the telescopic spring is compressed and generates the sliding elastic force, and the locking position of the slider button slips off from the inclined locking position. The slider button moves in a third direction under the action of the second component force, and stops sinking after being restricted by the limiting post. The telescopic spring releases the sliding elastic force and pushes the slider button to slide in the first direction. The structural ribs of the slider button press against the trigger spring of the micro switch, causing the micro switch to close, thus activating the circuit of the target motherboard to send the alarm signal.

[0014] Optionally, after the reset key is inserted into the keyhole of the upper shell, a thrust is applied to the second end of the reset linkage in the first direction; The reset linkage rotates around the fulcrum axis, and drives the slider button to move in the second direction through the C-shaped structure; The reset spring releases the reset elastic force, pushing the slider button back into the inclined slot, thus restoring the device to its initial state.

[0015] Optionally, the upper shell assembly and the lower shell assembly are fixedly connected by screws and / or snap-fit ​​connections.

[0016] By implementing the embodiments of this application, the transmission structure is simplified and the risk of jamming caused by the assembly linkage of the reset link and the slider button is reduced through the design of the linkage between the reset link and the slider button. At the same time, the sleeved cooperation between the telescopic spring and the first positioning post, and the reset spring and the second positioning post, ensures that the spring will not shift or fall off during compression and release, so that the elastic force acts stably on the slider button, ensuring the accuracy and consistency of alarm triggering and reset actions. The dedicated design of the reset key prevents unauthorized personnel from accidentally resetting the device. Combined with the elastic reset mechanism of the reset spring, it ensures that the device is accurately restored to the initial state before alarm after reset, avoiding false alarms or alarm failures caused by incomplete reset, which meets the safety specifications of fire protection equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a manual fire alarm button device with alarm and reset functions provided in an embodiment of this application; Figure 2 This is a schematic diagram of a manual fire alarm button device with alarm and reset functions provided in an embodiment of this application; Figure 3This is a schematic diagram of the structure of an upper shell assembly provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of a reset link provided in an embodiment of this application; Figure 5 This is a side sectional view of an upper shell assembly provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a lower shell assembly provided in an embodiment of this application; Figure 7 This is a side sectional view of a device after an alarm is completed, as provided in an embodiment of this application; Figure 8 This is a side sectional view of a device after reset, provided in an embodiment of this application. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0021] It should be understood that the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document indicates that the preceding and following related objects are in an "or" relationship. In the embodiments of this application, "multiple" refers to two or more.

[0022] In the embodiments of this application, "at least one item" or its similar expression refers to any combination of these items, including any combination of a single item or a plurality of items. "One or more" means one or more, while "multiple" means two or more. For example, "at least one item" of a, b, or c can represent the following seven cases: a, b, c; a and b; a and c; b and c; a, b, and c. Each of a, b, and c can be an element or a set containing one or more elements.

[0023] In this application, the term "connection" refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices. This application does not impose any limitations on this.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] The following is an explanation of the relevant terms used in this application: A printed circuit board assembly (PCBA) is a finished product with specific electrical functions formed by soldering and mounting various electronic components (such as resistors, capacitors, chips, connectors, etc.) on a printed circuit board. The PCBA motherboard connects multiple electrical components to form a complete circuit system and provides a platform for fixing and electrically connecting microswitches, power interfaces (such as battery connection points), communication interfaces, etc.

[0026] In a fire alarm system, the manual fire alarm button is one of the core triggering components. Its function is to send a fire signal to the fire control panel in the fire control room by manually pressing the button when the fire detector (such as a smoke detector or a temperature detector) does not respond in time due to the unclear initial characteristics of the fire (such as smoldering fire or local small fire), or when personnel discover the fire before the detector. This will then initiate the subsequent alarm procedure and buy time for fire fighting.

[0027] Existing manual fire alarm buttons have a relatively complex structure, often using multi-stage linkages or gears for transmission. This not only makes them prone to failure due to environmental factors but also increases production costs. In addition, some existing rotary trigger products require two steps—pressing and rotating—to activate the alarm. In the emergency and chaotic situation at a fire scene, this can easily lead to operational errors and delays in triggering the alarm.

[0028] Therefore, it is urgent to find a solution for how to provide a manual fire alarm button device that is simple in structure and easy to operate.

[0029] To address the aforementioned problems, this application provides a manual fire alarm button device with alarm and reset functions. The device includes an upper shell assembly, a lower shell assembly, and a reset key. The upper shell assembly and the lower shell assembly are fixedly connected. The reset key is used to restore the device to its initial state. The upper shell assembly includes an upper shell, a slider button, a reset linkage, and a telescopic spring. The lower shell assembly includes a lower shell, a micro switch, and a reset spring. The upper shell internally houses the slider button, the reset linkage, and the telescopic spring. The reset linkage and the slider button are linked through assembly. The slider button has a first positioning post. The telescopic spring is sleeved on the first positioning post of the slider button. The two ends of the telescopic spring abut against the slider button and the upper shell respectively. When the telescopic spring is compressed and released, it provides a sliding elastic force for the slider button. The lower shell houses the micro switch and the reset spring. The micro switch is used to send an alarm signal when the switch is closed. The lower shell is provided with a second positioning post. The reset spring is sleeved on the second positioning post of the lower shell. The two ends of the reset spring abut against the slider button and the lower shell respectively. When the reset spring is compressed and released, it provides a reset elastic force for the slider button. The reset key is a rod-shaped structure used to drive the reset linkage to rotate by applying a pushing force, thereby driving the slider button to reset and restore the device to its initial state.

[0030] For easier understanding, please refer to Figure 1 , Figure 1 This is a schematic diagram of a manual fire alarm button device with alarm and reset functions provided in an embodiment of this application. As can be seen, the manual fire alarm button device 100 with alarm and reset functions (hereinafter referred to as device 100) may include: an upper shell assembly 101, a lower shell assembly 102 and a reset key 103. The upper shell assembly 101 and the lower shell assembly 102 are fixedly connected. The reset key 103 is used to restore the device 100 to its initial state. The upper shell assembly 101 may include an upper shell 1, a slider button 2, a reset linkage 3 and a telescopic spring 4. The lower shell assembly 102 may include a lower shell 5, a micro switch 6 and a reset spring 7.

[0031] The upper shell 1 houses a slider button 2, a reset link 3, and a telescopic spring 4. The reset link 3 and the slider button 2 are linked by assembly. The slider button 2 has a first positioning post. The telescopic spring 4 is sleeved on the first positioning post of the slider button 2, and its two ends abut against the slider button 2 and the upper shell 1, respectively. When the telescopic spring 4 is compressed and released, it provides sliding elastic force to the slider button 2. The lower shell 5 houses a micro switch 6 and a reset spring 7. The micro switch 6 is used to send an alarm signal when the switch is closed. The lower shell 5 has a second positioning post. The reset spring 7 is sleeved on the second positioning post of the lower shell 5, and its two ends abut against the slider button 2 and the lower shell 5, respectively. When the reset spring 7 is compressed and released, it provides reset elastic force to the slider button 2. The reset key 103 is a rod-shaped structure used to apply a pushing force to drive the reset link 3 to rotate, thereby driving the slider button 2 to reset and restore the device 100 to its initial state.

[0032] When the alarm is triggered by device 100, the user can press the slider button 2, causing it to sink and rotate the reset linkage 3. Simultaneously, the telescopic spring 4 is compressed, and then released, pushing the slider button 2 to slide. The slider button 2 then presses the micro switch 6, closing it and triggering the alarm signal. It is evident that through a series of mechanical interlocking actions during the alarm process, the micro switch 6 is quickly compressed, ensuring the continuity between switch closure and alarm signal triggering, and preventing missed alarms due to structural jamming. Furthermore, the sleeved cooperation between the telescopic spring 4 and the first positioning post, and the reset spring 7 and the second positioning post, ensures that the spring force acts stably on the slider button 2, making the transmission of the alarm triggering force efficient and consistent, ensuring reliable response under different usage scenarios (such as low temperature and vibration).

[0033] When resetting the device 100, the user can insert the reset key 103 into the upper housing 1 and push the reset linkage 3. Then, the reset linkage 3 pulls the slider button 2 back, and at the same time, the reset spring 7 releases its elastic force to assist the slider button 2 in returning to its original position. Finally, the slider button 2 returns to its initial position, and the device 100 returns to its initial state and waits for the next alarm. It can be seen that using the reset key 103 to push the reset linkage 3 achieves reset, and with the assistance of the elastic force of the reset spring 7, reset can be completed simply by inserting and applying a pushing force. The operation threshold is low, and it avoids misoperation by unauthorized personnel (requiring a specific reset key 103 for reset). During the reset process, the slider button 2 accurately returns to its original position under the combined action of the linkage traction and the spring force, ensuring that it is locked back into the initial position of the upper housing 1, avoiding false alarms or failure of the next alarm due to incomplete reset, which complies with the safety regulations for fire protection equipment. In addition, the two-stage linkage structure of the slider button 2 and the reset linkage 3, compared with traditional multi-link and gear transmission, reduces the clearance between components and potential failures, and reduces the risk of mechanical wear due to long-term use.

[0034] Please see Figure 2 , Figure 2 This is a schematic diagram of a manual fire alarm button device with alarm and reset functions provided in an embodiment of this application. It can be seen that the device 100 may include, but is not limited to, the following structures: upper shell 1, slider button 2, reset linkage 3, telescopic spring 4, lower shell 5, micro switch 6, reset spring 7, and reset key 103, wherein: The upper shell 1 serves as the outer frame of the upper shell assembly 101. On one hand, it provides installation space and positioning support for the slider button 2, reset linkage 3, and telescopic spring 4 (e.g., reserving an operating window for the slider button 2). On the other hand, through its fixed connection with the lower shell 5, it together forms a closed cavity of the device 100, protecting internal components from dust and moisture. The slider button 2 is the direct operating component for manually triggering the alarm. When the user presses the slider button 2, it drives the reset linkage 3 in conjunction, simultaneously compressing the telescopic spring 4. The first end of the reset linkage 3 is connected to the slider button 2. The second end extends to the area of ​​the lower housing assembly 102. When an alarm is triggered, it rotates as the slider button 2 sinks. When a reset is triggered, it is pushed back to its original position by the reset key 103, thus realizing the bidirectional transmission of alarm and reset actions. The telescopic spring 4 provides sliding elastic force for the slider button 2 and can be sleeved on the first positioning post of the slider button 2. When the slider button 2 is pressed, the telescopic spring 4 is compressed and stores force. When the slider button 2 is disengaged, the telescopic spring 4 releases its elastic force to push the slider button 2 to slide, which can ensure that it can stably trigger the micro switch 6 of the lower housing assembly 102.

[0035] The lower shell 5 serves as the outer frame of the lower shell assembly 102, providing a fixed position for the reset spring 7 (such as reserving a second positioning post for the reset spring 7). Simultaneously, it cooperates with the upper shell 1 to form a closed space, protecting internal electrical components (such as the PCBA motherboard and battery, which may be expanded later) from external interference. The micro switch 6 is the trigger point for the alarm signal and can be installed on the electrical components (such as the PCBA motherboard) inside the lower shell 5. When the slider button 2 slides under the combined action of the user's pressing pressure and the sliding elastic force of the telescopic spring 4, it will squeeze the trigger spring of the micro switch 6, closing the switch, thereby connecting the alarm circuit and sending an alarm signal. The reset spring 7 provides the reset elastic force for the slider button 2, and is sleeved on the second positioning post of the lower shell 5. It is compressed in the alarm state and releases the reset elastic force during reset, working with the reset linkage 3 to push the slider button 2 back to its initial position, ensuring that the device 100 can return to its initial state.

[0036] Please see Figure 3 , Figure 3This is a schematic diagram of the structure of an upper shell assembly provided in an embodiment of this application. As can be seen, the upper shell assembly 101 may include, but is not limited to: upper shell 1, slider button 2, reset linkage 3, and telescopic spring 4. Among them, the upper shell 1 is provided with a keyhole 11 for inserting a reset key 103, an upper shell slide rail 12 that cooperates with the slider button 2, and a sloped locking position 13.

[0037] It should be noted that the keyhole 11 serves as a dedicated insertion channel for the reset key 103, and its position corresponds to the second end of the reset linkage 3. This ensures that the reset key 103, after insertion, can accurately act on the force-bearing end of the reset linkage 3, i.e., the second end. The diameter of the keyhole 11 is adapted to the diameter of the reset key 103, ensuring smooth key insertion and preventing accidental operation by non-dedicated tools through size limitation, thus improving the safety of the reset operation. The upper shell slide rail 12 provides guiding constraints for the sliding of the slider button 2, ensuring that the slider button 2 maintains linear motion during the sliding process during alarm and reset, avoiding misalignment with the trigger position of the micro switch 6 due to sliding deviation, or failure of the engagement with the inclined locking position 13 of the upper shell 1. The inclined angle of the inclined locking position 13 is adapted to the mating part of the slider button 2 (such as the locking position of the slider button 2). In the initial state, the slider button 2 is locked by the inclined surface contact; when the slider button 2 is pressed, the component force generated by the inclined surface can efficiently drive the slider button 2 to disengage.

[0038] In some embodiments, after the slider button 2 is installed into the upper shell slide rail 12, it is held in place by the telescopic spring 4 and locked into the inclined plate slot 13, and the slider button 2 and the inclined plate slot 13 are engaged by the inclined plate.

[0039] In some embodiments, the upper shell 1 is provided with a support position 21, such as... Figure 3 As shown, the support position 21 has a semi-circular groove for supporting and fixing the reset linkage 3. The upper shell 1 also has a limiting rib 31 to prevent the slider button 2 from sliding excessively to the right, causing the reset spring 7 to detach or be damaged, thus causing the device 100 to malfunction. It should be noted that if the upper shell 1 does not have a limiting rib 31, when the slider button 2 slides excessively to the right, the axis of the reset spring 7 will deviate too much from the axis of the second positioning post, causing the reset spring 7 to fall off the second positioning post and lose the reset support force for the slider button 2, or causing the reset spring 7 to tilt due to force offset, and unable to release the elastic force along the axis during subsequent reset, causing the slider button 2 to jam upon return.

[0040] Depend on Figure 3It can be seen that the limiting rib 31 of the upper shell 1 can precisely limit the maximum rightward sliding distance of the slider button 2 through physical blocking (contacting the right edge of the slider button 2 or a specific protruding structure). This ensures that when the slider button 2 slides to the right to the position where it just presses the micro switch 6 to trigger the alarm, it is blocked by the limiting rib 31. This does not affect the alarm function triggering, and also avoids the risk of excessive sliding causing the return spring 7 to shift or disengage. In addition, by limiting the rightward sliding stroke of the slider button 2, the limiting rib 31 indirectly controls the deformation range of the return spring 7 to always be within a safe range, avoiding the failure of the elastic force due to excessive deformation of the return spring 7, significantly extending the service life of the return spring 7, and reducing functional failures caused by component damage.

[0041] As can be seen, after the slider button 2 is installed into the upper shell slide rail 12, the telescopic spring 4 is in a pre-compressed state. Its elastic force in the first direction (e.g., to the right) continuously acts on the slider button 2, pushing the mating part of the slider button to fit tightly against the inclined locking position 13 of the upper shell. Since the two are mated on an inclined plane, the lateral thrust of the telescopic spring 4 is converted into a component force along the inclined plane in the fourth direction (e.g., upward), so that the mating part of the slider button 2 and the inclined locking position 13 form a "self-locking" effect. That is, when the slider button is not pressed by external force, it will not disengage from the locking position due to slight vibration or gravity, ensuring that the device 100 is always in a stable standby alarm state.

[0042] For easier understanding, please refer to Figure 4 , Figure 4 This is a schematic diagram of a reset linkage provided in an embodiment of this application. It shows that the first end of the reset linkage 3 can be connected to the rotating shaft of the slider button 2 via a C-shaped structure to achieve linkage. The C-shaped structure is an open slot, forming a loose fit with the rotating shaft at the bottom of the slider button. This allows the rotating shaft to slide along the groove within the C-shaped groove while also transmitting torque through the groove wall, driving the reset linkage to move when the slider button 2 is activated. The second end of the reset linkage 3 can extend into the interior of the lower housing 5, and when the slider button 2 is reset, it cooperates with the reset key 103 to achieve linkage. When the reset key 103 is inserted and a pushing force is applied, it is converted into rotational torque of the reset linkage 3, thereby driving the slider button 2 to reset. The fulcrum axis is located in the middle of the reset linkage 3 and is the fulcrum around which the reset linkage 3 rotates. When the slider button 2 is activated or the reset key 103 applies force, the reset linkage 3 will rotate around the fulcrum axis, thereby realizing the transmission of force and the conversion of action.

[0043] Please see Figure 5 , Figure 5This is a side sectional view of an upper shell assembly provided in an embodiment of this application. It can be seen that the first end of the reset link 3 is connected to the rotating shaft of the slider button 2 via a C-shaped structure to achieve linkage; the second end of the reset link 3 extends into the interior of the lower shell 5, and when the slider button 2 is reset, the reset link 3 cooperates with the reset key 103 to achieve linkage. The slider button 2 is provided with a structural rib 14, which is used to press the trigger spring of the micro switch 6 when the slider button 2 slides in a first direction (e.g., to the right).

[0044] The front end of the structural rib 14 is typically designed as an arc transition or an inclined surface. This allows the contact between the slider button 2 and the trigger spring to gradually transition from a point to a surface during the sliding process, achieving a smooth increase in pressure and preventing damage to the trigger spring due to excessive instantaneous impact. Simultaneously, it ensures the stable closure of the trigger spring of the micro switch 6. Furthermore, the protrusion height of the structural rib 14 matches the trigger stroke of the trigger spring. When the slider button 2 slides to the preset position, the pressure exerted by the structural rib 14 on the trigger spring is precisely enough to close the trigger spring of the micro switch 6, ensuring circuit continuity and thus stably sending alarm signals.

[0045] Please see Figure 6 , Figure 6 This is a schematic diagram of a lower shell assembly provided in an embodiment of this application. It can be seen that the lower shell assembly 102 may include, but is not limited to: a lower shell 5, a micro switch 6, a reset spring 7, and a target mainboard 8. The lower shell 5 has a support position 21 for fixing the reset linkage 3 and a limiting post 22 for limiting the downward distance of the slider button 2. The target mainboard 8 has a micro switch 6 with a trigger spring. When the trigger spring is squeezed, it closes the micro switch 6, thus activating the circuit of the target mainboard 8 to send an alarm signal.

[0046] In some embodiments, both the upper shell 1 and the lower shell 5 are provided with support positions 21, such as... Figure 3 and Figure 6 As shown, the support position 21 is provided with a semi-circular groove for supporting and fixing the reset link 3. The reset link 3 is provided with a fulcrum shaft in the middle. The fulcrum shaft is limited by the support position 21 of the upper shell 1 and the lower shell 5, so the fulcrum shaft becomes the rotation fulcrum of the reset link 3.

[0047] The lower shell 5 has a vertically protruding limiting post 22, the height of which corresponds to the maximum sinking distance of the slider button 2. During the alarm process, when the slider button 2 disengages from the inclined locking position 13 of the upper shell 1 and sinks under pressure, the limiting post 22 will contact the bottom of the slider button 2 and prevent it from moving further down, ensuring that the sinking distance of the slider button 2 is accurately controllable.

[0048] The return spring 7 is sleeved on the second positioning post of the lower shell 5, with one end abutting the bottom of the slider button 2 and the other end fixed to the inner wall of the lower shell 5. Under normal conditions, it is in a compressed and stored state. It can provide a fourth-direction (such as upward) return elastic force during the reset phase: when the reset linkage 3 pulls the slider button 2 back to a specific position in the second direction (such as to the left), the return spring 7 releases the return elastic force, pushing the slider button 2 to move in the fourth direction, so that its locking structure can smoothly slide into the inclined locking position 13 of the upper shell 1, completing the mechanical locking.

[0049] It should be noted that the target motherboard 8 integrates the micro switch 6 with external communication interfaces (such as the wiring connecting to the fire alarm control panel) through its circuit layout. Its core function is to quickly conduct the circuit when the micro switch 6 is closed, converting the physical signal of "switch closure" into an electrical signal conforming to the fire alarm protocol (such as a switching signal), and sending it to the fire control room or fire alarm control panel through a pre-set line, thus achieving standardized transmission of alarm signals. Simultaneously, the target motherboard 8 can integrate a power interface (such as a battery compartment connection terminal) to provide stable power to the entire electrical circuit. The micro switch 6 is fixed to a pre-set solder point or mounting position on the target motherboard 8, with its trigger spring arranged in the fourth direction, precisely aligned with the structural rib position 14 of the slider button 2.

[0050] Please see Figure 7 , Figure 7 This is a side cross-sectional view of the device after an alarm is completed, provided in an embodiment of this application. It shows that when the slider button 2 is pressed, the slider button 2 and the inclined locking position 13 generate a first component force in a second direction (e.g., to the left), and the slider button 2 generates a second component force in a third direction (e.g., downward). Under the action of the first component force, the slider button 2 slides in the second direction, compressing the telescopic spring 4 and generating a sliding elastic force, and the locking position of the slider button 2 slips off the inclined locking position 13. Under the action of the second component force, the slider button 2 moves in a third direction, stopping its descent after being restricted by the limiting post 22. The telescopic spring 4 releases the sliding elastic force, pushing the slider button 2 to slide in the first direction. The structural rib 14 of the slider button 2 presses the trigger spring of the micro switch 6, causing the micro switch 6 to close, thus activating the circuit of the target mainboard 8 to send an alarm signal. When it is necessary to reset the device 100, the reset key 103 can be inserted into the keyhole 11 of the upper shell 1 to perform the reset operation. Figure 7 It can be seen that the reset key 103 has just been inserted into the keyhole 11 and has not yet contacted the reset linkage 3, and is in a state where the reset operation is about to be performed.

[0051] In some embodiments, when a downward pressing force is applied to the slider button 2, since the slider button and the inclined locking position 13 of the upper shell 1 are engaged at an angle, the pressing force is decomposed into two components: the first component (to the left): a component along the inclined plane, driving the slider button 2 to slide to the left, providing power for disengaging from the inclined locking position; the second component (downward): a component perpendicular to the inclined plane, causing the slider button 2 to move downward, pushing it closer to the micro switch 6. When the slider button 2 slides to the left under the action of the first component force, it compresses the telescopic spring 4 (or other elastic element) that it engages with, and the compressed spring generates a sliding elastic force to the right. At the same time, the locking position of the slider button 2 gradually separates from the inclined locking position 13 of the upper shell. When the slider button 2 moves downward under the action of the second component force, it is blocked by the limiting post 22 of the lower shell 5, limiting its maximum downward distance and preventing excessive downward sinking that could cause structural damage. At this time, the compressed telescopic spring 4 releases its sliding elastic force, pushing the slider button 2 to slide to the right. The elastic force of the telescopic spring 4 becomes the driving force for the slider button 2 to slide in the opposite direction, ensuring that it can move precisely to the position of squeezing the micro switch 6. When the slider button 2 slides to the right, its structural rib 14 will precisely squeeze the trigger spring of the micro switch 6, causing the micro switch 6 to close, thereby conducting the circuit of the target motherboard 8. After the circuit is conducted, the target motherboard 8 will send an alarm signal (such as audible and visual alarm, electrical signal transmission, etc.) according to the preset program, completing the entire alarm triggering process.

[0052] Please see Figure 8 , Figure 8 This is a side cross-sectional view of the device after reset according to an embodiment of this application. It can be seen that after the reset key 103 is inserted into the keyhole 11 of the upper shell 1, it applies a pushing force in the first direction to the second end of the reset link 3; the reset link 3 rotates around the fulcrum axis, and drives the slider button 2 to move in the second direction through the C-shaped structure; the reset spring 7 releases the reset elastic force, pushes the slider button 2 back into the inclined plate position 13, and restores the device 100 to its initial state.

[0053] In some embodiments, after the user inserts the reset key 103 into the keyhole 11 of the upper shell 1, a pushing force is applied to the right. This pushing force acts directly on the second end (i.e., the lower end) of the reset linkage 3. The guiding function of the keyhole 11 ensures the accurate direction of the pushing force, avoids force dispersion, and provides a stable power source for the subsequent rotation of the reset linkage 3. When the slider button 2 moves to a specific position to the left under the traction of the reset linkage 3, the reset spring 7, which is always in a compressed state, releases the reset elastic force (i.e., the upward pushing force). This reset elastic force, in conjunction with the movement tendency of the slider button 2 itself, pushes the slider button 2 upward, aligning its locking structure with the inclined locking position 13 of the upper shell 1. Then, under the combined action of the upward pushing force of the reset spring 7 and the inertia of the slider button 2 itself, the locking position of the slider button 2 slides into the inclined locking position 13 and completes the locking, restoring the inclined engagement in the initial state. At this time, the structural rib 14 of the slider button 2 disengages from pressing the trigger spring of the micro switch 6, the micro switch 6 is turned off, the circuit of the target main board 8 is reset, and the device 100 returns to the initial state of waiting for alarm, waiting for the next alarm trigger. Among these, the components are... Figure 8 It can be seen that the reset key 103 has just completed the reset operation and is about to be removed from the keyhole 11, and is in the state of having completed the reset operation.

[0054] In some embodiments, the upper shell assembly 101 and the lower shell assembly 102 are fixedly connected by screws and / or snap-fit ​​connections. Specifically, the upper shell assembly 101 and the lower shell assembly 102 can be fixed by three screws and two snap-fit ​​points; no specific limitation is made here.

[0055] It should be noted that screw posts and screw holes can be provided at corresponding positions on the upper shell 1 and lower shell 5, and self-tapping screws or machine screws can be used to rigidly fix the two. The screw connection provides a uniform and durable preload, ensuring that the upper and lower shell components will not loosen or develop gaps during long-term use (such as vibration and temperature changes). Alternatively, protruding clips can be provided on the edge of the upper shell 1, and beveled grooves can be provided at corresponding positions on the lower shell 5. During assembly, pressing causes the clips to elastically deform and snap into the grooves, forming an interference fit. The clip connection does not require additional fasteners and relies on the elasticity of the plastic parts themselves for fixation. Alternatively, the upper and lower shell components can be initially fixed using clips to ensure precise alignment of the screw holes, reducing manual alignment time. Then, screws can be added at key positions (such as near the stress areas of the reset link 3 and the micro switch 6) to further enhance structural strength and prevent the clips from loosening due to fatigue deformation during long-term use.

[0056] It should be noted that, for the sake of simplicity, the above embodiments are all described as a series of actions. Those skilled in the art should understand that this application is not limited to the described order of actions, as some steps in the embodiments of this application can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions, steps, modules, or units involved are not necessarily essential to the embodiments of this application.

[0057] In the above embodiments, the descriptions of each embodiment in this application have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0058] Those skilled in the art will understand that implementing all or part of the processes in the above embodiments can be accomplished by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes described in the above embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

[0059] The steps described in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (EEPROM), registers, hard disk, portable hard disk, read-only optical disk (CD-ROM), or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Furthermore, the ASIC can reside in a terminal device or management device. Alternatively, the processor and storage medium can exist as discrete components in the terminal device or management device.

[0060] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in the embodiments of this application can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0061] The modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The implementation is achieved through a software program that runs on the processor integrated within the chip module. The remaining modules / units (if any) can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into terminal equipment, each of their modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal equipment. Alternatively, at least some modules / units can be implemented through a software program that runs on the processor integrated within the terminal equipment, while the remaining modules / units (if any) can be implemented using hardware methods such as circuits.

[0062] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A manual fire alarm button device with alarm and reset functions, characterized in that, The device includes: an upper shell assembly, a lower shell assembly, and a reset key. The upper shell assembly and the lower shell assembly are fixedly connected. The reset key is used to restore the device to its initial state. The upper shell assembly includes an upper shell, a slider button, a reset linkage, and a telescopic spring. The lower shell assembly includes a lower shell, a micro switch, and a reset spring, wherein: The upper shell houses the slider button, the reset link, and the telescopic spring. The reset link and the slider button are linked by assembly. The slider button is provided with a first positioning post. The telescopic spring is sleeved on the first positioning post of the slider button, and the two ends of the telescopic spring abut against the slider button and the upper shell respectively. When the telescopic spring is compressed and released, it provides sliding elastic force to the slider button. The lower housing contains the micro switch and the reset spring. The micro switch is used to send an alarm signal when the switch is closed. The lower housing is provided with a second positioning post. The reset spring is sleeved on the second positioning post of the lower shell, and the two ends of the reset spring abut against the slider button and the lower shell respectively. When the reset spring is compressed and released, it provides a reset elastic force to the slider button. The reset key is a rod-shaped structure used to apply a pushing force to rotate the reset linkage, thereby driving the slider button to reset and restore the device to its initial state.

2. The apparatus as claimed in claim 1, characterized in that, The upper shell is provided with a keyhole for inserting the reset key, an upper shell slide rail that cooperates with the slider button, and a sloping locking position; The lower shell is provided with a limiting post to restrict the downward distance of the slider button.

3. The apparatus as described in claim 2, characterized in that, After the slider button is installed into the upper shell slide rail, it is held in place by the telescopic spring and locked into the inclined plate slot, and the slider button and the inclined plate slot are engaged by the inclined plate.

4. The apparatus as claimed in claim 1, characterized in that, The first end of the reset linkage is connected to the rotating shaft of the slider button through a C-shaped structure to achieve linkage; The second end of the reset link extends into the interior of the lower housing, and when the slider button is reset, the reset link works in conjunction with the reset key to achieve linkage.

5. The apparatus as described in claim 4, characterized in that, Both the upper shell and the lower shell are provided with support positions, and the support positions are provided with semi-circular grooves for supporting and fixing the reset connecting rod; The reset link has a fulcrum shaft in the middle. The fulcrum shaft is limited by the support positions of the upper shell and the lower shell, so the fulcrum shaft becomes the rotation fulcrum of the reset link.

6. The apparatus as claimed in claim 3, characterized in that, The lower shell assembly also includes a target motherboard, on which the micro switch is provided. The micro switch has a trigger spring, which is used to close the micro switch when squeezed, and the circuit of the target motherboard is turned on to send the alarm signal.

7. The apparatus as claimed in claim 6, characterized in that, The slider button is provided with a structural rib, which is used to press the trigger spring of the micro switch when the slider button slides in the first direction.

8. The apparatus as claimed in claim 7, characterized in that, When the slider button is pressed, the slider button and the inclined plate generate a first component force in the second direction, and the slider button generates a second component force in the third direction. When the slider button slides in the second direction under the action of the first component force, the telescopic spring is compressed and generates the sliding elastic force, and the locking position of the slider button slips off from the inclined locking position. The slider button moves in a third direction under the action of the second component force, and stops sinking after being restricted by the limiting post. The telescopic spring releases the sliding elastic force and pushes the slider button to slide in the first direction. The structural ribs of the slider button press against the trigger spring of the micro switch, causing the micro switch to close, thus activating the circuit of the target motherboard to send the alarm signal.

9. The apparatus as claimed in claim 7, characterized in that, After the reset key is inserted into the keyhole of the upper shell, a thrust is applied to the second end of the reset linkage in the first direction; The reset linkage rotates around the fulcrum axis, and drives the slider button to move in the second direction through the C-shaped structure; The reset spring releases the reset elastic force, pushing the slider button back into the inclined slot, thus restoring the device to its initial state.

10. The apparatus according to any one of claims 1-9, characterized in that, The upper shell assembly and the lower shell assembly are fixedly connected by screws and / or snap-fit ​​connections.

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