A manual fire alarm push button structure and its assembly method

Abstract

The application discloses a manual fire alarm button structure, which comprises a top cover, a pressing plate, a circuit board and a middle disc; the top cover and one end of the middle disc are connected through a hinge to form a flip cover type structure, a buckle is arranged on the edge of one end of the top cover and extends downward, a clamping groove matched with the buckle is arranged on the edge of one end of the middle disc, the circuit board is installed in the middle disc, the pressing plate is hingedly connected to one end of the inner side of the top cover away from the middle disc, a pressing opening is formed in the top cover, and a path blocking mechanism is arranged on the inner side of the top cover close to one end of the pressing plate away from the hinge connection position; a pressing piece is arranged on the pressing plate and matched with the path blocking mechanism to realize the alarm switching and reset operation of the manual fire alarm button. Through the above design, the manual fire alarm button can be conveniently and quickly operated and reset, and the hidden danger caused by the traditional spring cooperation for realizing the operation and reset is eliminated. Therefore, the application is suitable for wide promotion and application.

Description

Technical Field

[0001] This invention belongs to the technical field of manual fire alarm buttons, specifically, it relates to a manual fire alarm button structure and its assembly method. Background Technology

[0002] Manual fire alarm buttons are a component of fire alarm systems. When a fire occurs, they can be pressed manually to report the fire and promptly notify relevant personnel. In recent years, the application of fire alarm systems has become increasingly widespread, leading to a continuous increase in demand for manual fire alarm buttons. Existing manual fire alarm buttons consist of a top cover, button panel, circuit board, middle panel, and base. They typically use a spring-assisted button panel combined with mechanical buttons to activate and reset the button. However, the spring and mechanical buttons may corrode after prolonged use, potentially causing the button to become unpressable or unable to reset after being pressed. Furthermore, the assembled manual fire alarm button consists of two parts: the button body and the base. During installation, the base must be installed first, followed by the button body. This design is complex, the manufacturing process is cumbersome, the overall production cost is high, and subsequent installation and debugging are also troublesome and time-consuming. Summary of the Invention

[0003] The purpose of this invention is to provide a manual fire alarm button structure and its assembly method, which mainly solves the problems that the existing manual fire alarm button manufacturing process is cumbersome, the overall production cost of the manual fire alarm button is high, and the subsequent installation and debugging are also troublesome and time-consuming.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A manual fire alarm button structure includes an upper cover, a pressing plate, a circuit board, and a middle plate. The upper cover and one end of the middle plate are hinged to form a flip-top structure. A buckle extends downward from one edge of the upper cover, and a groove that engages with the buckle is provided on one edge of the middle plate. The circuit board is installed inside the middle plate. The pressing plate is hinged to the inner side of the upper cover away from the connection point with the middle plate. A pressing port is provided on the upper cover. A path blocking mechanism is provided inside the upper cover near the pressing plate away from the hinge point. The pressing plate is provided with a pressure plate that cooperates with the path blocking mechanism to realize the alarm switching and reset operation of the manual fire alarm button.

[0006] Furthermore, in this invention, the path blocking mechanism includes a mounting plate perpendicular to the inner side of the top of the cover, and a plurality of path blocking platforms disposed on the mounting plate near the pressing plate; the path blocking platform includes a support platform near the surface of the cover and a blocking platform located below the support platform, the upper surface of the support platform is flat, and the edge is designed with a downward arc-shaped slope; the blocking platform is designed as a hook.

[0007] Furthermore, in this invention, the pressing plate is provided with a lever arm, and a rotating shaft is provided on both sides of the top end of the lever arm. The upper cover is provided with a first screw groove that cooperates with the rotating shaft to realize the hinge connection between the pressing plate and the upper cover; wherein, the lever arm is S-shaped and can produce elastic deformation.

[0008] Furthermore, in this invention, the hinge between the upper cover and the middle plate is achieved through the cooperation of a second swivel groove provided on the inner side of the upper cover and a rotating shaft mechanism provided on the middle plate.

[0009] Furthermore, in this invention, a circuit board mounting position is provided inside the central plate, the circuit board is mounted on the circuit board mounting position, and the circuit board is provided with a spring piece that cooperates with the pressure plate to realize the manual fire alarm button alarm.

[0010] Furthermore, in this invention, the central plate is also provided with a protective cover that is fastened to the circuit board mounting position. The circuit board is covered inside the protective cover. The protective cover has an isolation groove for the pressure plate to pass through and a screw hole for the screw to pass through when wiring.

[0011] Furthermore, in this invention, a plurality of wiring clips are provided below the circuit board mounting position, an isolation plate is provided between each pair of wiring clips, and a wiring nut is provided in each wiring clip.

[0012] The present invention also provides an assembly method for a manual fire alarm button structure, comprising the following steps:

[0013] (S1) Install the rotating shaft at the top of the lever arm of the pressing plate into the first screw groove, and then press the side of the pressing plate opposite to the lever arm onto the upper surface of the lifting platform. After installation, the pressing plate and the top cover form a whole.

[0014] (S2) Install the circuit board on the circuit board mounting position in the middle plate and then install the protective cover to form a whole;

[0015] (S3) Connect the second rotating groove on the top cover with the rotating shaft mechanism of the middle plate, and then lock the buckle and the groove together to complete the installation of the entire manual fire alarm button.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) This invention features a press plate hinged to the inside of the upper cover and a path-blocking mechanism installed inside the upper cover near the other side of the press plate. When the manual fire alarm button is in normal inspection mode, the other end of the press plate is fastened to the support platform of the path-blocking mechanism. When the press plate is pressed, it is displaced and slides from the support platform to the blocking platform. At this time, the pressure plate on the press plate forces the manual fire alarm button to emit an alarm signal. When the fire alarm button needs to be reset, simply open the upper cover and push the press plate back from the blocking platform to the support platform. This allows for convenient and quick operation and reset of the manual fire alarm button, eliminating the hidden dangers caused by the traditional method of requiring a spring to achieve operation and reset.

[0018] (2) In this invention, the entire manual fire alarm button is installed as a whole. When installing and wiring, you only need to open the top cover. Compared with the traditional method of installing the base first and then wiring before installing the manual alarm body, this method can reduce the installation process and save installation time.

[0019] (3) The present invention uses a spring to replace the traditional mechanical button, which can solve the problem of button failure caused by corrosion of mechanical buttons due to long-term use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the exploded structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the inner structure of the upper cover in this invention.

[0023] Figure 4 This is a schematic diagram of the circuit board and protective cover assembly structure in this invention.

[0024] Figure 5 This is a schematic cross-sectional view of the pressing plate in this invention when it is not pressed down.

[0025] Figure 6 for Figure 5 A magnified view of part A in the middle.

[0026] Figure 7 This is a schematic cross-sectional view of the pressing plate when it is pressed down in this invention.

[0027] Figure 8 for Figure 7 A magnified view of part B in the middle.

[0028] The names corresponding to the reference numerals in the attached figures are as follows:

[0029] 1-Top cover, 2-Pressing plate, 3-Circuit board, 4-Middle plate, 5-Snap fastener, 6-Slot, 7-Pressing port, 8-Pressure plate, 9-Mounting plate, 10-Path blocking platform, 11-Lifting platform, 12-Blocking platform, 13-Lever arm, 14-Rotating shaft, 15-First snap groove, 16-Second snap groove, 17-Circuit board mounting position, 18-Spring piece, 19-Protective cover, 20-Isolation groove, 21-Screw hole, 22-Wiring clip, 23-Isolation plate, 24-Wiring nut. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0031] Example

[0032] like Figures 1-8 As shown, the present invention discloses a manual fire alarm button structure, including an upper cover 1, a pressing plate 2, a circuit board 3, and a middle plate 4; the upper cover 1 and the middle plate 4 are hinged at one end to form a flip-top structure, a buckle 5 is provided on the downward-extending edge of one end of the upper cover 1, and a slot 6 that cooperates with the buckle 5 is provided on the edge of one end of the middle plate; the circuit board 3 is installed inside the middle plate 4; the pressing plate 2 is hinged to the inner side of the upper cover 1 away from the connection point with the middle plate; a pressing port 7 is provided on the upper cover 1; a path blocking mechanism is provided inside the upper cover near the pressing plate 2 away from the hinge point; a pressure plate 8 is provided on the pressing plate 2 to cooperate with the path blocking mechanism to realize the alarm switching and reset operation of the manual fire alarm button.

[0033] In this embodiment, the path-blocking mechanism includes a mounting plate 9 perpendicular to the inner side of the top of the upper cover, and multiple path-blocking platforms 10 disposed on the mounting plate 9 near the pressing plate 2. Each path-blocking platform 10 includes a support platform 11 near the surface of the upper cover and a blocking platform 12 located below the support platform. The upper surface of the support platform 11 is flat, and the edges are designed with downward-facing arc-shaped slopes. The blocking platform 12 has an overall hook-shaped design. When the manual fire alarm button is in normal inspection mode, the other end of the pressing plate is engaged with the support platform of the path-blocking mechanism. When the pressing plate is pressed, it is displaced and slides from the support platform to the blocking platform. At this time, the pressure plate on the pressing plate forces the manual fire alarm button to emit an alarm signal. When the fire alarm button needs to be reset, simply open the upper cover and push the pressing plate back from the blocking platform to the support platform. This conveniently and quickly realizes the action and reset of the manual fire alarm button, eliminating the hidden dangers caused by the traditional method of requiring springs for action and reset.

[0034] During the pressing process, the pressure plate moves downwards, engaging with a spring on the circuit board to trigger the alarm. The spring is a planar capacitor structure; when the pressure plate is pressed, the pressure plate inserts between the two plates of the capacitor, changing the capacitance and sending a feedback signal to the circuit board, thus activating the manual fire alarm button. In other embodiments, the alarm circuit can be activated by designing the pressure plate to contact the spring, connecting the spring to the circuit board.

[0035] In this embodiment, the pressing plate 2 is provided with a lever arm 13, and rotating shafts 14 are provided on both sides of the top end of the lever arm. The upper cover is provided with a first screw groove 15 that cooperates with the rotating shafts 14 to achieve hinge connection between the pressing plate 2 and the upper cover. The lever arm 13 is S-shaped and can produce elastic deformation. When the pressing plate is pressed, the pressing plate rotates inside the upper cover along with the lever arm.

[0036] In this embodiment, the hinge between the upper cover 1 and the middle plate 4 is achieved through the cooperation of the second screw groove 16 located on the inner side of the upper cover and the rotating shaft mechanism located on the middle plate 4. After the pressing plate and the upper cover are fastened together to form a whole, the second screw groove 16 on the inner side of the upper cover is rotated and connected to the rotating shaft mechanism, and then the buckles and slots on the other side edge of the upper cover are engaged and locked together to complete the installation of the entire manual fire alarm button.

[0037] In this embodiment, a circuit board mounting position 17 is provided inside the middle plate 4, and the circuit board 3 is mounted on the circuit board mounting position 17. The circuit board 3 is provided with a spring contact 18 that cooperates with the pressure plate to realize the manual fire alarm button. The middle plate 4 is also provided with a protective cover 19 that snaps into the circuit board mounting position. The circuit board 3 is covered inside the protective cover 19, which has an isolation groove 20 for the pressure plate to pass through and a screw hole 21 for the screw to pass through during wiring. Multiple wiring slots 21 are provided below the circuit board mounting position 16, with an isolation plate 23 between each pair of wiring slots 22. Each wiring slot contains a wiring nut 24. During wiring, by flipping up the entire top cover, the signal wire is inserted into the wiring slot. By rotating the screw, the wiring nut and the screw rotate relative to each other, causing the wiring nut to move upward and contact the signal wire with the circuit board to achieve circuit conduction.

[0038] The assembly process of the manual fire alarm button structure in this invention is as follows:

[0039] First, install the rotating shaft at the top of the lever arm of the pressing plate into the first screw groove. Then, press the side of the pressing plate opposite to the lever arm onto the upper surface of the lifting platform. After installation, the pressing plate and the top cover form a whole.

[0040] Secondly, install the circuit board on the circuit board mounting position in the middle plate and then install the protective cover to form a whole;

[0041] Finally, connect the second rotating groove on the top cover with the rotating shaft mechanism of the middle plate, and then lock the buckle and the groove together to complete the installation of the entire manual fire alarm button.

[0042] After the alarm button is fully installed, the wiring can be done simply by flipping up the top cover and button panel as a whole.

[0043] When the manual fire alarm button is activated, pressing the button causes it to slide from the lifting platform to the blocking platform. At this time, the pressure plate on the button forces the manual fire alarm button to send an alarm signal, thus achieving rapid alarm.

[0044] To reset the manual fire alarm button, flip up the top cover and use your hand or a tool to push the pressing plate back from the blocking platform to the lifting platform.

[0045] Through the above design, this invention can conveniently and quickly activate and reset the manual fire alarm button, eliminating the hidden dangers associated with traditional methods that require springs for activation and reset. Therefore, compared with the prior art, this invention has outstanding substantive features and significant progress.

[0046] The above embodiments are merely one of the preferred embodiments of the present invention and should not be used to limit the scope of protection of the present invention. Any modifications or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but solve the same technical problem as the present invention, should be included within the scope of protection of the present invention.

Claims

1. A manual fire alarm button structure, characterized in that, The device includes an upper cover (1), a pressing plate (2), a circuit board (3), and a middle plate (4). The upper cover (1) and the middle plate (4) are hinged at one end to form a flip-top structure. A buckle (5) extends downward from one edge of the upper cover (1). A slot (6) that cooperates with the buckle (5) is provided on one edge of the middle plate. The circuit board (3) is installed inside the middle plate (4). The pressing plate (2) is hinged to the inner side of the upper cover (1) away from the connection point with the middle plate. A pressing port (7) is provided on the upper cover (1). A path blocking mechanism is provided inside the upper cover near the pressing plate (2) away from the hinge point with the upper cover. A pressure plate (8) is provided on the pressing plate (2) to cooperate with the path blocking mechanism to realize the alarm switching and reset operation of the manual fire alarm button. The path blocking mechanism includes a mounting plate (9) perpendicular to the inner side of the top of the cover, and a plurality of path blocking platforms (10) disposed on the mounting plate (9) near the side of the pressing plate (2); the path blocking platform (10) includes a support platform (11) near the surface of the cover and a blocking platform (12) located below the support platform. The upper surface of the support platform (11) is flat, and the edge is designed with a downward arc-shaped slope; the blocking platform (12) is designed with an overall hook shape. The middle plate (4) is provided with a circuit board mounting position (17), the circuit board (3) is mounted on the circuit board mounting position (17), and the circuit board (3) is provided with a spring (18) that cooperates with the pressure plate to realize the manual fire alarm button alarm.

2. The manual fire alarm button structure according to claim 1, characterized in that, The pressing plate (2) is provided with a lever arm (13), and a rotating shaft (14) is provided on both sides of the top of the lever arm. The upper cover is provided with a first screw groove (15) that cooperates with the rotating shaft (14) to realize the hinge connection between the pressing plate (2) and the upper cover. The lever arm (13) is S-shaped and can produce elastic deformation.

3. The manual fire alarm button structure according to claim 2, characterized in that, The hinge between the upper cover (1) and the middle plate (4) is achieved through the cooperation of the second screw groove (16) set on the inner side of the upper cover and the rotating shaft mechanism set on the middle plate (4).

4. The manual fire alarm button structure according to claim 3, characterized in that, The middle plate (4) is also provided with a protective cover (19) that is fastened to the circuit board mounting position. The circuit board (3) is covered inside the protective cover (19). The protective cover (19) has an isolation groove (20) for the pressure plate to pass through and a screw hole (21) for the screw to pass through when wiring.

5. The manual fire alarm button structure according to claim 4, characterized in that, Multiple wiring slots (22) are provided below the circuit board mounting position (17), and an isolation plate (23) is provided between each pair of wiring slots (22). A wiring nut (24) is provided in each wiring slot.

6. A method for assembling a manual fire alarm button structure, characterized in that, The method for assembling the manual fire alarm button structure as described in any one of claims 1 to 5 includes the following steps: (S1) Install the rotating shaft at the top of the lever arm of the pressing plate into the first screw groove, and then press the side of the pressing plate opposite to the lever arm onto the upper surface of the lifting platform. After installation, the pressing plate and the top cover form a whole. (S2) Install the circuit board on the circuit board mounting position of the middle plate and then install the protective cover to form a whole; (S3) Connect the second rotating groove on the top cover with the rotating shaft mechanism of the middle plate, and then lock the buckle and the groove together to complete the installation of the entire manual fire alarm button.

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