Manual pressing type fire alarm device

Abstract

The utility model provides a manual pressing type fire alarm device, which comprises a shell, a shell cover and a panel, the two opposite sides of the shell are provided with supporting plates, the upper end parts of the pair of supporting plates are provided with sliding chutes, the lower end parts of the pair of supporting plates are provided with inclined surfaces which are inclined downwards, the lower end part of the shell is internally provided with a first limiting bulge, and the lower end part of the shell is internally provided with a second limiting bulge; first sliding pieces are arranged on the two sides of the upper end of the panel, second sliding pieces are arranged on the two sides of the lower end of the panel, the first sliding pieces are embedded in the corresponding sliding grooves in a sliding mode respectively, the slopes stop the corresponding second sliding pieces respectively, and second limiting protrusions matched with the first limiting protrusions in a stopping mode are further arranged on the lower end of the panel. A fire alarm mark is further arranged on the edge of the upper end of the panel, the shell cover is buckled on the shell to cover the fire alarm mark, a contact switch and a reset spring are arranged between the panel and the shell, when the panel is pressed, the second sliding piece moves downwards along the inclined face to expose the fire alarm mark out of the shell, and the visibility and identifiability of fire alarm are improved.

Description

A manual push-button fire alarm device Technical Field

[0001] This utility model belongs to the technical field of fire alarm devices, specifically relating to a manual push-button type fire alarm device. Background Technology

[0002] Manual fire switches are key devices used in automatic fire alarm systems and fire equipment control. Existing manual fire switches operate by pressing the switch in case of a fire, activating the internal circuitry and triggering the fire alarm system. The switch panel needs to display a fire alarm indicator after being pressed; this indicator is hidden when the switch is not pressed. However, because current push-button switches are hinged at the ends, when the switch is pressed, the connecting shaft rotates, causing the switch panel on one side of the connecting shaft to rotate downwards and tilt, preventing the complete display of the fire alarm indicator on that end of the switch panel, thus affecting the alarm device's judgment and indication. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention aims to provide a manual push-button fire alarm device. This device uses a sliding connection to allow the panel to shift when pressed, thus displaying the fire alarm indicator. After resetting, the panel returns to its original position, solving the problem that existing fire alarm switches cannot fully display the fire alarm indicator, affecting the judgment and indication.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A manually operated push-button fire alarm device includes a housing, a cover, and a panel. The housing has support plates on opposite sides. Each pair of support plates has a groove at its upper end and a downwardly sloping surface at its lower end. A first limiting protrusion is located inside the lower end of the housing. The panel has first sliding members on both sides of its upper end and second sliding members on both sides of its lower end. The first sliding members are slidably embedded in their respective grooves. The sloping surfaces stop the corresponding second sliding members. The lower end of the panel also has a second limiting protrusion that cooperates with the first limiting protrusion. A fire alarm mark is located on the upper edge of the panel. The cover is fastened to the housing to cover the fire alarm mark. A contact switch and a return spring are located between the panel and the housing. When the panel is pressed, the second sliding members move downwards along the sloping surface, exposing the fire alarm mark inside the housing.

[0006] Furthermore, both the first and second sliding members are pivots.

[0007] Furthermore, an insertion hole is provided at the lower end of the shell cover, and an insertion plate is provided on the outer periphery of the insertion hole located on the lower side of the shell cover. The insertion hole is inserted into one side of the first limiting protrusion, and the gap formed by the insertion plate and the first limiting protrusion communicates with the insertion hole. A key is inserted into the insertion hole to offset the first limiting protrusion.

[0008] Furthermore, a circuit board is provided inside the housing, and the contact switch is disposed on the circuit board.

[0009] Furthermore, it also includes a base, which is fastened to the lower side of the housing. The base is provided with a wiring hole and a second wiring terminal. The circuit board is provided with a first wiring terminal, which extends out of the housing and is inserted into the second wiring terminal. External leads are electrically connected to the second wiring terminal through the wiring hole.

[0010] Furthermore, the base is provided with mounting holes.

[0011] Furthermore, a first limiting ring is provided on the upper side of the housing, and a second limiting ring is provided on the lower side of the panel. The first limiting ring is located outside the circuit board, and the two ends of the reset spring are respectively embedded in the first limiting ring and the second limiting ring.

[0012] Furthermore, the contact switch is a spring-loaded contact switch.

[0013] Furthermore, the contact switch is fixed to the circuit board, and a switch groove for pressing the contact switch is provided on the lower side of the panel. One end of the contact switch is embedded in the switch groove and makes contact with the circuit board to conduct electricity when pressed.

[0014] By adopting the above technical solution, this utility model has the following advantages and effects:

[0015] This utility model provides a manual push-button fire alarm device. By using a sliding nested connection design between the panel and the cover, the panel moves during the pressing process, allowing the fire alarm mark to be fully displayed, thus improving the visibility and recognizability of the fire alarm. When the switch is manually pressed, the conduction of the contact switch ensures that the fire alarm system is accurately triggered. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the exploded structure of this utility model.

[0017] Figure 2 is a schematic diagram of the isometric structure of the panel of this utility model.

[0018] Figure 3 is a schematic diagram of the isometric structure of the panel of this utility model.

[0019] Figure 4 is a schematic diagram of the isometric structure of the shell cover of this utility model.

[0020] Figure 5 is a schematic diagram of the isometric structure of the shell cover of this utility model.

[0021] Figure 6 is a schematic diagram of the isometric structure of the shell of this utility model.

[0022] Figure 7 is a magnified schematic diagram of part A of Figure 6.

[0023] Figure 8 is a magnified schematic diagram of part B of Figure 6.

[0024] Figure 9 is a schematic diagram of the isometric structure of the shell of this utility model.

[0025] Figure 10 is a schematic diagram of the isometric structure of the base of this utility model.

[0026] Figure 11 is a schematic diagram of the isometric structure of the base of this utility model.

[0027] The attached diagram is labeled as follows: 1-panel, 11-first sliding member, 12-second sliding member, 13-second limiting protrusion, 14-second limiting ring, 15-switch slot, 16-fire alarm mark, 2-shell cover, 21-through hole, 22-insertion hole, 3-shell, 31-support plate, 311-slide groove, 312-sloping surface, 32-first limiting protrusion, 33-circuit board, 331-first terminal block, 34-contact switch, 4-base, 41-mounting hole, 42-wiring hole, 43-second terminal block, 5-reset spring. Detailed Implementation

[0028] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are only for illustrating the essential spirit of the technical solution of this utility model.

[0029] As shown in Figures 1-11, this utility model discloses a manual push-button type fire alarm device, comprising a housing 3, a cover 2, and a panel 1. The housing 3 has support plates 31 on opposite sides. The upper ends of the pair of support plates 31 are provided with sliding grooves 311, and the lower ends of the pair of support plates 31 are provided with downwardly inclined slopes 312. The lower end of the housing 3 is provided with a first limiting protrusion 32. The upper ends of the panel 1 are provided with first sliding members 11 on both sides, and the lower ends of the panel 1 are provided with second sliding members 12 on both sides. The first sliding members 11 are slidably embedded in the corresponding sliding grooves 311, and the inclined slopes 312 respectively stop the corresponding second sliding members 12. The lower end of panel 1 is also provided with a second limiting protrusion 13 that cooperates with the first limiting protrusion 32. The upper edge of panel 1 is also provided with a fire alarm mark 16. The cover 2 is fastened to the housing 3 to cover the fire alarm mark 16 of panel 1. A contact switch 34 and a return spring 5 are provided between panel 1 and housing 3. When panel 1 is pressed, the second sliding member 12 moves down along the inclined surface 312, which drives the first sliding member 11 to move along the slide groove 311 at the same time. The second limiting protrusion 13 gradually moves into the lower end of the first limiting protrusion 32 and is stopped by the first limiting protrusion 32. The fire alarm mark 16 at the upper end of panel 1 is then displayed. When panel 1 is pressed at the same time, the contact switch 34 is made to contact the circuit board 33 in the housing 3 to generate an electrical signal, thereby realizing the alarm function.

[0030] Specifically, the support plate 31 is located on both sides of the middle part of the housing 3. One side of the support plate 31 is connected to the edge of the housing 3, and the bottom of the support plate 31 is integrally connected to the housing 3. The slide groove 311 is provided at the upper edge of the support plate 31, and the upper end opening of the slide groove 311 forms a U-shaped structure. The bottom width of the slide groove 311 is greater than the depth of the slide groove 311.

[0031] The cover 2 has a square frame structure with a rectangular through hole 21 in the center that matches the outer periphery of the panel 1. The inner periphery edge of the through hole of the cover 2 can cover the four edges of the panel 1 so that the fire alarm mark 16 can be hidden under normal conditions.

[0032] Furthermore, both the first slider 11 and the second slider 12 are pivots. The pivots extend out of the edge of the panel 1 and are embedded in the groove or attached to the inclined surface.

[0033] As a preferred embodiment, both the first slider 11 and the second slider 12 are sliding plates that protrude from the edge of the panel 1.

[0034] Furthermore, in order to reset the panel 1, an insertion hole 22 is provided in the lower end of the cover 2. An insertion plate 23 is provided on the outer periphery of the insertion hole 22 located on the lower side of the cover 2. The insertion hole 22 is inserted into one side of the first limiting protrusion 32. The gap formed by the insertion plate 23 and the first limiting protrusion 32 is in communication with the insertion hole 22. A key is inserted into the insertion hole 22 to offset the first limiting protrusion 32.

[0035] Specifically, the first limiting protrusion 32 includes a pair of spaced outwardly protruding teeth with a gap between them and a stop surface on the outer periphery of each tooth. The second limiting protrusion 13 consists of a pair of spaced outwardly protruding flanges with a triangular cross-section. The pair of flanges are spaced apart and can be relatively fitted and stopped by the pair of teeth. When the panel 1 is pressed down and the second limiting protrusion is inserted into the lower end of the first limiting protrusion, a key is inserted through the jack 22 into the gap between the pair of teeth, forcing the teeth to shift away from the flanges. At this time, since there is no stop from the teeth, the second limiting protrusion 13 moves out of the first limiting protrusion 32 under the action of the return spring 5. At the same time, the pivots on both sides of the lower end of the panel 1 move up the inclined plane, and the pivots on both sides of the upper end of the panel 1 move along the slide groove 311, causing the fire alarm mark 16 to move into the interior of the cover 2 and be blocked again. Simultaneously, the contact switch 34 disengages from the circuit board 33, disconnecting the electrical signal and thus deactivating the fire alarm signal.

[0036] Furthermore, the circuit board 33 is fixed inside the housing 3, and the contact switch 34 is mounted on the circuit board 33. The upper end of the panel 1 is located above the circuit board 33 and is supported by the housing 3, while the lower end of the panel 1 is supported by the return spring 5. The contact switch 34 is located at the lower edge of the circuit board 33, and the contact switch 34 can be pressed when the lower end of the panel 1 moves down.

[0037] Furthermore, a base 4 is provided at the bottom of the housing 3. The base 4 is fastened to the lower side of the housing 3. The base 4 is provided with a mounting hole 41. The middle part of the base 4 has a wiring hole 42 and a second wiring terminal 43. The circuit board 33 is provided with a first wiring terminal 331. The first wiring terminal 331 extends out of the housing 3 and is inserted into the second wiring terminal 43 to make contact with the first wiring terminal 331 and conduct electricity. The external lead is electrically connected to the second wiring terminal 43 through the wiring hole 42. The mounting hole 41 is used to fix the base 4 to the wall with screws.

[0038] Furthermore, a first limiting ring is provided on the upper side of the housing 3, and a second limiting ring 14 is provided on the lower side of the panel 1. The first limiting ring is located outside the circuit board 33, and the two ends of the reset spring 5 are respectively embedded in the first limiting ring and the second limiting ring 14.

[0039] Furthermore, the contact switch 34 is a spring-type contact switch, and the spring-type contact switch is a V-shaped spring.

[0040] The contact switch 34 is fixed on the circuit board 33 by limiting and fixing. The lower side of the panel 1 is also provided with a switch groove 15. When the panel 1 is pressed, one end of the contact switch 34 is embedded in the switch groove 15. After being squeezed, it makes contact with the circuit board 33 to conduct electricity and generate an electrical signal.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A manually actuated fire alarm device, characterized in that The device includes a housing, a cover, and a panel. The housing has support plates on opposite sides. Each pair of support plates has a groove at its upper end and a downwardly sloping surface at its lower end. A first limiting protrusion is provided in the lower end of the housing. The panel has first sliding members on both sides of its upper end and second sliding members on both sides of its lower end. The first sliding members are slidably embedded in the corresponding grooves. The sloping surfaces stop the corresponding second sliding members. The lower end of the panel also has a second limiting protrusion that cooperates with the first limiting protrusion. A fire alarm mark is provided on the upper edge of the panel. The cover is fastened to the housing to cover the fire alarm mark. A contact switch and a reset spring are provided between the panel and the housing. When the panel is pressed, the second sliding members move down the sloping surface to expose the fire alarm mark in the housing.

2. The manually operated push-button fire alarm device according to claim 1, characterized in that, Both the first and second sliders are pivots.

3. A manually operated push-button fire alarm device according to claim 1 or 2, characterized in that, The lower end of the shell cover is provided with an insertion hole, and an insertion plate is provided on the outer periphery of the insertion hole located on the lower side of the shell cover. The insertion hole is inserted into one side of the first limiting protrusion. The gap formed by the insertion plate and the first limiting protrusion is in communication with the insertion hole. A key is inserted into the insertion hole to offset the first limiting protrusion.

4. A manually operated push-button fire alarm device according to claim 3, characterized in that, A circuit board is provided inside the housing, and the contact switch is disposed on the circuit board.

5. A manually operated push-button fire alarm device according to claim 4, characterized in that, It also includes a base, which is fastened to the lower side of the housing. The base is provided with a wiring hole and a second wiring terminal. The circuit board is provided with a first wiring terminal. The first wiring terminal extends out of the housing and is inserted into the second wiring terminal. External leads are electrically connected to the second wiring terminal through the wiring hole.

6. A manually operated push-button fire alarm device according to claim 5, characterized in that, The base is provided with mounting holes.

7. A manually operated push-button fire alarm device according to claim 6, characterized in that, A first limiting ring is provided on the upper side of the housing, and a second limiting ring is provided on the lower side of the panel. The first limiting ring is located outside the circuit board, and the two ends of the reset spring are respectively embedded in the first limiting ring and the second limiting ring.

8. A manually operated push-button fire alarm device according to claim 7, characterized in that, The contact switch is a spring-loaded contact switch.

9. A manually operated push-button fire alarm device according to claim 8, characterized in that, The contact switch is fixed to the circuit board, and a switch groove for squeezing the contact switch is provided on the lower side of the panel. One end of the contact switch is embedded in the switch groove and is used to make contact with the circuit board and conduct electricity after being squeezed.

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