Manual alarm device

Abstract

The utility model provides a manual alarm device which comprises a bottom plate and a cover body, the cover body is buckled on the bottom plate, a reset switch is arranged on the bottom plate, a gate plate is hinged to one side of the upper surface of the cover body, a reset torsional spring is arranged on the hinged portion of the gate plate and the cover body, a stop plate is hinged to one side of the lower surface of the cover body, and an arc-shaped hanging strip is arranged on the lower surface of the gate plate. The arc-shaped hanging strip penetrates through one end portion of the hinged end of the cover body and the stopping plate to oppositely hook the stopping plate, one end of the hinged end of the gate plate is provided with a hook portion which is in stopping connection with the reset switch, and the portion, located at the lower end of the stopping plate, of the cover body is provided with a reset lock. And meanwhile, the problem that foreign matters enter the manual alarm is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of alarm device technology, specifically relating to a manual alarm device. Background Technology

[0002] Fire alarms are key devices used in automatic fire alarm systems and fire equipment control. Existing manual alarms can be roughly divided into push-pull, sliding, and push-button types. Currently, push-pull manual alarms require a key to open the cover before the push-pull gate can be reset after the alarm is triggered by pulling the PULL valve. This operation is complicated and inconvenient, and foreign objects can easily enter the manual alarm when the cover is opened. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a manual alarm device, which can be reset by key after manually pulling up the gate, thus avoiding the problem of foreign objects entering when the cover is opened.

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

[0005] A manual alarm device includes a base plate and a cover. The cover is fastened to the base plate, and a reset switch is provided on the base plate. A gate is hinged to one side of the upper surface of the cover, and a reset torsion spring is provided on the hinge joint between the gate and the cover. A stop plate is hinged to one side of the lower surface of the cover, and an arc-shaped hanging strip is provided on the lower surface of the gate. The arc-shaped hanging strip passes through one end of the cover and hooks onto the stop plate. A hook portion for the reset switch stop is provided at one end of the hinge joint of the gate. A reset lock is provided on the cover located below the stop plate.

[0006] Furthermore, the upper end of the gate is a U-shaped plate, and the upper surface of the cover is provided with a U-shaped groove that matches the U-shaped plate. Through holes are provided on both sides of the opening end of the U-shaped groove. The cover is provided with a hanging strip hole, and the arc-shaped hanging strip passes through the hanging strip hole and hooks onto the stop plate for a stop. At least one hook portion is provided on both sides of the lower end of the gate, and the hook portion extends out of the through hole. The reset switch is hooked on at least one side of the hook portion.

[0007] Furthermore, the lower surface of one end of the stop plate has a base plate extending downward, one end of which is hinged to the cover. A through hole is provided in the middle of the stop plate, and a stop protrusion is provided on the through hole. The end of the arc-shaped hanging strip has a stop ratchet. The arc-shaped hanging strip passes through the through hole and slides against the stop protrusion. The stop protrusion and the stop ratchet form a stop. The other end of the stop plate is provided with a sliding slope, which stops the bolt of the reset lock.

[0008] Furthermore, a compression torsion spring is provided between the cover and the stop plate.

[0009] Furthermore, the lower surface of the cover is provided with an upper spring groove, and the cover on both sides of the upper spring groove is provided with torsion spring slots. The middle part of the torsion spring slot is embedded in the upper spring groove, and the two ends of the compression torsion spring extend out from both sides of the stop plate and are respectively inserted into the corresponding torsion spring slots.

[0010] Furthermore, the outer periphery of the arc-shaped hanging strip is provided with an arc-shaped groove, the stop ratchet is provided at the end of the arc-shaped groove, and the stop protrusion slides and fits into the arc-shaped groove.

[0011] Furthermore, a hinge shaft is provided inside the through hole, and U-grooves are provided on both sides of the opening end of the U-shaped plate located on the upper side of the hook portion. The U-grooves are embedded in the corresponding hinge shafts, and the reset torsion spring is sleeved on the outer periphery of the hinge shaft.

[0012] Furthermore, the reset lock also includes a lock sleeve, a lock cylinder, a lock spring, and a key. The lock sleeve is nested on the cover, the lock tongue is fixed to the lock sleeve on one side of the lower surface of the cover, the lock cylinder is nested inside the lock sleeve, the lock spring is sleeved on the outer periphery of the lock cylinder, and the outer end of the lock spring is embedded in the lock sleeve.

[0013] Furthermore, it also includes a bottom cover, which and the cover body are fastened together to form a housing, a base plate is disposed inside the housing, a circuit board is disposed on the base plate, and a reset switch is disposed on the circuit board.

[0014] Furthermore, the base plate is provided with a connector, which extends out of both ends of the base plate. The bottom of the circuit board is connected to the connector at the upper end of the base plate. A terminal is provided at the lower end of the base plate, and the terminal is connected to the connector at the lower end of the base plate.

[0015] By adopting the above technical solution, this utility model has the following advantages and effects:

[0016] This utility model provides a manual alarm device that uses a gate, a stop plate, and a reset lock to form a stop. When the gate is pulled, the gate moves the stop plate, blocking one end of the stop plate, while the other end of the stop plate is blocked by the cover, thus forming a stop. In this state, the reset switch of the gate is always active, continuously emitting an alarm. When the reset lock is turned by inserting a key, the lock tongue moves the stop plate, causing the gate to disengage from the stop plate. The gate then resets under the action of a torsion spring, which in turn drives the reset switch to reset and deactivate the alarm. This eliminates the need to open the cover of the alarm device for a second operation to reset the reset switch, making it convenient to operate. Furthermore, since the cover does not need to be opened, the problem of foreign objects entering the alarm device is avoided. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the isometric structure of the cover of this utility model. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the isometric structure of the cover of this utility model. Figure 2 .

[0020] Figure 4 This utility model's isometric structural diagram of the gate plate.

[0021] Figure 5 A top view of the gate structure of this utility model.

[0022] Figure 6 This utility model's gate plate side view structural diagram.

[0023] Figure 7 A schematic diagram of the gate structure of this utility model from below.

[0024] Figure 8 Isometric structural diagram of the stop plate of this utility model.

[0025] Figure 9 A top-view structural diagram of the stop plate of this utility model.

[0026] Figure 10 for Figure 9 AA sectional view.

[0027] Figure 11 This utility model's explosion-proof reset lock structure diagram.

[0028] Figure 12 This utility model's reset lock is shown in an isometric structural diagram.

[0029] Figure 13 This is a schematic diagram of the base plate structure of this utility model.

[0030] Figure 14 This is a schematic diagram of the bottom cover structure of this utility model.

[0031] The attached diagram is labeled as follows: 1-Cover body, 101-U-shaped groove, 102-Reset lock hole, 103-Hanging bar hole, 104-Hinge shaft, 105-Through hole, 106-Upper spring groove, 107-Torsion spring slot, 2-Gate plate, 201-Arc-shaped hanging bar, 2011-Stop ratchet, 2012-Arc-shaped groove, 202-Hook part, 203-U-groove, 3-Reset torsion spring, 4-Reset lock, 5-Reset switch, 6-Base plate, 601-Connecting piece, 7-Bottom cover, 701-Connecting groove, 8-Circuit board, 9-Stop plate, 901-Base plate, 9011-Pin shaft, 902-Through hole, 9021-Stop protrusion, 903-Plate body, 9031-Sliding inclined surface, 9032-Arc-shaped opening, 10-Compression torsion spring. Detailed Implementation

[0032] 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.

[0033] like Figures 1-12 As shown. This utility model provides a manual alarm device, including a base plate 6 and a cover 1. The cover 1 is fastened to the base plate 6. A reset switch 5 is provided on the base plate 6. A gate plate 2 is hinged to one side of the upper surface of the cover 1. A reset torsion spring 3 is provided on the hinge part between the gate plate 2 and the cover 1. A stop plate 9 is hinged to one side of the lower surface of the cover 1. An arc-shaped hanging strip 201 is provided on the lower surface of the gate plate 2. The arc-shaped hanging strip 201 passes through one end of the hinge of the cover 1 and the stop plate 9 and hooks onto the stop. A hook part 202 is provided at one end of the hinge of the gate plate 2 to stop the reset switch 5. A reset lock 4 is provided on the cover 1 located at the lower end of the stop plate 9.

[0034] Specifically, the manual alarm device also includes a bottom cover 7, which and the cover body 1 are fastened together to form a housing. A base plate 6 is disposed inside the housing, and a circuit board 8 is disposed on the base plate 6. A reset switch 5 is disposed on the lower end of the circuit board 8. The upper end of the cover body 1 presses and fixes the upper end of the circuit board 8. A stop plate 9 is hinged in the space between the lower end of the cover body 1 and the circuit board 8.

[0035] When the upper end of the gate 2 is pulled outward, the arc-shaped hanging bar 201 presses the hinge end of the stop plate 9 downward and abuts against the upper end of the hinge end of the stop plate 9. At the same time, the hook part 202 at the lower end of the gate 2 rotates and activates the reset switch 5. The reset switch 5 is energized and triggers the alarm. At this time, the other end of the stop plate 9 moves upward and is stopped by the reset lock 4, so that the stop plate 9 keeps the upper end of the gate 2 stationary. The hook part 202 at the lower end of the gate 2 remains stationary and stops the reset switch 5. The reset switch 5 is always energized and alarms are triggered.

[0036] When the alarm is cleared, the reset lock 4 is rotated by the switch. After the reset lock 4 is rotated, the stop plate 9 is released. Under the action of the reset torsion spring 3, there is no stop plate 9. The gate 2 and the stop plate 9 are reset at the same time. The hook part 202 then drives the reset switch 5 to reset. The reset switch 5 resets to cut off the power and clear the alarm.

[0037] The reset switch has an outwardly extending switch handle on one side, and the hook portion 202 is hooked and stopped with the switch handle.

[0038] Furthermore, the gate 2 is a U-shaped plate, and the upper surface of the cover 1 is provided with a U-shaped groove 101 that matches the U-shaped plate. Both sides of the opening end of the U-shaped groove 101 are provided with through holes 105. The cover 1 is provided with a hanging strip hole 103, through which the arc-shaped hanging strip 201 passes. The hanging strip hole 103 hooks the stop plate 9 to stop. At least one hook part 202 is provided on both sides of the lower end of the gate 2. The hook part 202 extends out of the through hole 105, and at least one hook part 202 on one side is hooked to the reset switch 5.

[0039] Specifically, in this invention, an arc-shaped hanging strip 201 is disposed in the middle of the lower surface of the closed end of the U-shaped plate, and a hook portion 202 is disposed on one side of the lower surface of the open end of the U-shaped plate. The hook portion 202 is an L-shaped hook extending outward from the U-shaped plate, wherein the L-shaped hook is engaged with the switch handle on one side of the reset switch 5. A reset lock hole 102 is disposed at the lower part of the cover 1, and a reset lock 4 is disposed inside the reset lock hole 102. A hanging strip hole 103 is disposed on the cover 1 above the reset lock hole 102.

[0040] Furthermore, a hinge shaft 104 is provided in the through hole 105, and U-grooves 203 are provided on both sides of the opening end of the U-shaped plate located on the upper side of the hook part 202. The U-grooves 203 are embedded in the corresponding hinge shaft 104, and the reset torsion spring 3 is sleeved on the outer periphery of the hinge shaft 104.

[0041] Specifically, a hinge shaft 104 is provided on the through hole of each cover 1. The hinge shaft 104 is a pair of relatively spaced rotating shafts. The pair of rotating shafts are respectively arranged on both sides of the through hole 105. The relatively spaced pair of rotating shafts facilitates the installation of the reset torsion spring 3. The U-groove 203 is embedded in the pair of rotating shafts to form a hinge part. The two ends of the reset torsion spring 3 are respectively abutted between the cover 1 and the gate 2.

[0042] Furthermore, the lower surface of one end of the stop plate 9 has a base plate 901 extending downward. One end of the base plate 901 is hinged to the cover 1. A through hole 902 is provided in the middle of the stop plate 9. A stop protrusion 9021 is provided on the through hole 902. The end of the arc-shaped hanging strip 201 has a stop ratchet 2011. The arc-shaped hanging strip 201 passes through the through hole and slides against the stop protrusion 9021. The stop protrusion 9021 and the stop ratchet 2011 form a stop. The other end of the stop plate 9 is provided with a sliding inclined surface 9031. The sliding inclined surface 9031 stops the lock tongue of the reset lock 4.

[0043] Specifically, the stop plate 9 includes a plate body 903 and a base plate 901. The base plate 901 is disposed on one side of the plate body 903 and forms an L-shape with the plate body 903. Pins 9011 are respectively disposed on both sides of the base plate 901, and the pins 9011 are hinged to the lower surface of the cover body 1. A through hole 902 is disposed on the plate body 903, and a sliding inclined surface 9031 is disposed at the other end of the plate body 903. The middle part of the sliding inclined surface 9031 has an arc-shaped opening 9032, which matches the outer periphery of the reset lock 4. When the reset lock 4 is embedded in the cover body 1, the arc-shaped opening 9032 and the outer periphery of the reset lock 4 are matched with a gap. The locking tongue of the reset lock 4 can press against the stop sliding inclined surface 9031. The outer periphery of the arc-shaped hanging strip 201 has an arc-shaped groove 2012, and a stop ratchet 2011 is disposed at the end of the arc-shaped groove 2012. The stop protrusion 9021 slides and fits against the arc-shaped groove 2012. When the gate 2 rotates, the arc groove 2012 slides along the stop protrusion 9021. After the stop ratchet 2011 presses against the stop protrusion 9021, it presses the stop protrusion 9021 against the lower end of the stop ratchet 2011 to form a stop. The sliding inclined surface 9031 moves down and is stopped by the locking tongue. After the locking tongue rotates, the locking tongue can slide along the sliding inclined surface 9031 to release the sliding inclined surface 9031. Under the action of the reset torsion spring 3, the gate 2 drives the stop plate 9 to reset together. After the gate 2 resets, it drives the reset switch 5 to reset. When the reset switch 5 resets, the power is cut off and the alarm is cleared.

[0044] Furthermore, to facilitate the repositioning of the stop plate 9, a compression torsion spring 10 is provided between the cover 1 and the stop plate 9. To facilitate the fixing of the compression torsion spring 10, an upper spring groove 106 is provided on the lower surface of the cover 1, and torsion spring slots 107 are provided on the cover on both sides of the upper spring groove 106. The two ends of the compression torsion spring 10 extend out from both sides of the stop plate 9 and are inserted into the corresponding torsion spring slots 107.

[0045] Specifically, an upper spring groove 106 is provided on one side of the reset lock hole 102 at the lower end of the cover 1. The upper spring groove 106 is a rectangular groove with a central coil of compression torsion spring 10 and two extension ends extending outwards from opposite sides. The two extension ends of the compression torsion spring 10 extend outwards from the space between the cover 1 and the stop plate 9 on both sides of the stop plate 9. The two ends of the compression torsion spring 10 are respectively embedded in the corresponding torsion spring slots 107. The central coil of the compression torsion spring 10 is engaged in the upper spring groove 106. At least one extension end provides elastic force to resist the stop plate 9 and the cover 1.

[0046] Furthermore, the reset lock 4 also includes a lock sleeve 401, a lock cylinder 402, a lock spring 403, and a key. The lock sleeve 401 is nested on the cover 1. The latch 404 is located on the outer periphery of the lock sleeve 401 on one side of the lower surface of the cover 1, with one end of the latch 404 extending beyond the outer periphery of the lock sleeve 401. The lock cylinder 402 is nested inside the lock sleeve 401. The lock spring 403 is a torsion spring structure, fitted onto one end of the outer periphery of the lock cylinder 402, with its outer end embedded in the lock sleeve 401. By inserting a key into the lock cylinder 402, the latch 404 can be rotated, and simultaneously, under the action of the lock spring 401, the latch 404 can be reset in the reverse direction.

[0047] like Figures 13-14 As shown. Further, a connector 601 is provided on the base plate 6, extending from both ends of the base plate 6. The bottom of the circuit board 8 is connected to the connector 601 on the upper end of the base plate 6. A terminal block is provided at the lower end of the base plate 6, and the terminal block is connected to the connector 601 at the lower end of the base plate 6. An outwardly protruding ridge is provided on the bottom cover 7, and a wiring groove 701 for accommodating the terminal block is formed on the ridge. After the bottom cover 7 and the cover body 1 fasten the base plate 6, the terminal block is embedded in the wiring groove 701.

[0048] 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 manual alarm device, characterized in that: The device includes a base plate and a cover. The cover is fastened to the base plate, and a reset switch is provided on the base plate. A gate is hinged to one side of the upper surface of the cover, and a reset torsion spring is provided on the hinge joint between the gate and the cover. A stop plate is hinged to one side of the lower surface of the cover, and an arc-shaped hanging strip is provided on the lower surface of the gate. The arc-shaped hanging strip passes through one end of the cover and hooks onto the stop plate. A hook portion for the reset switch stop is provided at one end of the hinge joint of the gate. A reset lock is provided on the cover located below the stop plate.

2. The manual alarm device according to claim 1, characterized in that: The upper end of the gate is a U-shaped plate, and the upper surface of the cover is provided with a U-shaped groove that matches the U-shaped plate. The opening end of the U-shaped groove is provided with through holes on both sides. The cover is provided with a hanging strip hole, and the arc-shaped hanging strip passes through the hanging strip hole and hooks onto the stop plate for a stop. At least one hook part is provided on both sides of the lower end of the gate, and the hook part extends out of the through hole. At least one of the hook parts is hooked onto the reset switch.

3. A manual alarm device according to claim 1 or 2, characterized in that: The stop plate has a downwardly extending base plate on the lower surface of one end. One end of the base plate is hinged to the cover. The stop plate has a through hole in the middle and a stop protrusion on the through hole. The end of the arc-shaped hanging strip has a stop ratchet. The arc-shaped hanging strip passes through the through hole and slides against the stop protrusion. The stop protrusion and the stop ratchet form a stop. The other end of the stop plate has a sliding slope, which stops the bolt of the reset lock.

4. A manual alarm device according to claim 3, characterized in that: A compression torsion spring is provided between the cover and the stop plate.

5. A manual alarm device according to claim 4, characterized in that: The lower surface of the cover is provided with an upper spring groove, and the cover is provided with torsion spring slots on both sides of the upper spring groove. The middle part of the torsion spring slot is embedded in the upper spring groove, and the two ends of the compression torsion spring extend out from both sides of the stop plate and are respectively inserted into the corresponding torsion spring slots.

6. A manual alarm device according to claim 3, characterized in that: The outer periphery of the arc-shaped hanging strip is provided with an arc-shaped groove, the stop ratchet is provided at the end of the arc-shaped groove, and the stop protrusion slides and fits into the arc-shaped groove.

7. A manual alarm device according to claim 2, characterized in that: A hinge shaft is provided inside the through hole. U-grooves are provided on both sides of the opening end of the U-shaped plate located on the upper side of the hook. The U-grooves are embedded in the corresponding hinge shafts. The reset torsion spring is sleeved on the outer periphery of the hinge shaft.

8. A manual alarm device according to claim 5, characterized in that: The reset lock also includes a lock sleeve, a lock cylinder, a lock spring, and a key. The lock sleeve is nested on the cover, the lock tongue is fixed to the lock sleeve on one side of the lower surface of the cover, the lock cylinder is nested inside the lock sleeve, the lock spring is sleeved on the outer periphery of the lock cylinder, and the outer end of the lock spring is embedded in the lock sleeve.

9. A manual alarm device according to claim 1, characterized in that: It also includes a bottom cover, which and the cover body are fastened together to form a housing. The bottom plate is disposed inside the housing, and a circuit board is disposed on the bottom plate. The reset switch is disposed on the circuit board.

10. A manual alarm device according to claim 9, characterized in that: The base plate is provided with a connector, which extends out of both ends of the base plate. The bottom of the circuit board is connected to the connector at the upper end of the base plate. A terminal is provided at the lower end of the base plate, and the terminal is connected to the connector at the lower end of the base plate.

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