Fire-fighting weak current alarm device

Abstract

The utility model discloses a fire-fighting weak current alarm device, which relates to the field of fire-fighting safety engineering and comprises a shell, one side of the shell is fixedly connected with a back plate, one side of the back plate is rotatably connected with a fixed box, and when the back plate rotates to be attached to the fixed box, a space for arranging and connecting reserved lines is formed between the back plate and the fixed box. The fixed box is internally and fixedly connected with wire arrangement frames which are distributed in a rectangular array mode, the surface of each wire arrangement frame is provided with a plurality of wire arrangement grooves, and one side of the fixed box is provided with a plurality of grooves at equal intervals. According to the utility model, the electric wires are orderly fixed and positioned, so that the circuit arrangement is clearer, the circuit installation and maintenance efficiency is improved, and the fault risk caused by disordered circuits is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fire safety engineering, and in particular to a fire alarm device for low-voltage electrical systems. Background Technology

[0002] In the field of building fire safety, fire alarm devices, as key equipment for fire early warning and prevention, play a vital role. They can monitor fire hazards in real time, issue alarm signals promptly, buy valuable time for personnel evacuation and fire fighting, and effectively reduce the losses caused by fires.

[0003] The internal wiring layout of existing devices often lacks reasonable planning and fixed structure, with wires scattered randomly. This not only makes them prone to tangling and knotting during installation, increasing installation difficulty and time costs, but also makes it difficult to quickly and accurately locate faulty lines during subsequent maintenance and repair, resulting in low maintenance efficiency and potentially causing new safety hazards due to the chaotic wiring. Utility Model Content

[0004] The purpose of this invention is to provide a fire alarm device that solves the problem of difficult wiring management in existing fire alarm devices.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A fire alarm device for low-voltage electricity includes a housing, a back plate fixedly connected to one side of the housing, and a fixed box rotatably connected to one side of the back plate. When the back plate is rotated to fit against the fixed box, a space for reserving wiring for arrangement and connection is formed between the back plate and the fixed box. A cable management rack arranged in a rectangular array is fixedly connected inside the fixed box. The surface of the cable management rack is provided with several cable management grooves. Several grooves are equidistantly opened on one side of the fixed box.

[0006] Preferably, the four corners of the fixed box are provided with gourd holes, which provide a stable installation method for the fixed box and ensure that the fixed box will not easily shake or loosen after installation.

[0007] Preferably, the fixed box has symmetrical U-shaped clips on one side, and the back plate has symmetrical protrusions on one side edge. The protrusions are inserted into the corresponding U-shaped clips, and the fixed box and the back plate have symmetrical pins that pass through the corresponding U-shaped clips and protrusions.

[0008] Preferably, each groove is equipped with a wire sleeve to protect the wires that pass through the groove, reduce friction and collision between the wires and the edge of the groove, and prevent damage to the wires.

[0009] Preferably, a rotating rod is rotatably connected inside the back panel, and a baffle is fixedly connected to the inner wall of one side of the fixed box. An embedding groove is opened on the surface of the baffle. When the fixed box is attached to the back panel, one end of the rotating rod is set inside the embedding groove, and a locking tongue is fixedly connected to one end of the rotating rod. A torsion spring is sleeved on the outside of the rotating rod, and the rotating rod is elastically connected to the back panel through the torsion spring.

[0010] Preferably, the other end of the rotating rod is symmetrically and fixedly connected with a lug, which is used to facilitate the rotation of the rotating rod.

[0011] Preferably, the surface of the cable management rack is provided with deformation grooves at equal intervals, and the deformation grooves and cable management grooves are arranged alternately. The deformation grooves give the cable management rack a certain degree of flexibility and adaptability, which can easily insert wires of different diameters and shapes into the cable management grooves, thereby improving the versatility of the cable management rack.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. This utility model achieves orderly fixing and positioning of wires by setting up a cable management rack in a rectangular array inside the fixed box and opening several cable management grooves on the surface of the cable management rack. This not only makes the cable management clearer, but also improves the efficiency of cable installation and maintenance and reduces the risk of failure caused by messy cables.

[0014] 2. This utility model constitutes a safety locking mechanism through the rotating rod connected inside the back plate, the baffle on the inner wall of the fixed box, and the locking tongue and embedded groove at one end of the rotating rod. Under normal conditions, the locking tongue and embedded groove are misaligned, and the back plate cannot be pulled open due to the obstruction of the baffle, effectively preventing unauthorized opening and operation. The back plate can only be opened when the locking tongue and embedded groove are aligned by rotating the rotating rod. This design improves the safety of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fixed box of this utility model after it is opened;

[0017] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure in area A.

[0018] Figure 4 This is a schematic diagram of the cable management frame structure of this utility model;

[0019] Figure 5 This is a partial structural diagram of the back plate of this utility model.

[0020] Reference numerals: 1. Housing; 2. Back plate; 3. Fixing box; 4. Cable management rack; 41. Cable management groove; 5. Groove; 6. Gourd hole; 7. U-shaped clip; 8. Protrusion; 9. Pin; 10. Cable sleeve; 11. Rotating rod; 12. Baffle; 13. Embedded groove; 14. Locking tongue; 15. Torsion spring; 16. Ear piece; 17. Deformation groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5 This embodiment provides a fire alarm device for low-voltage electrical systems, including a housing 1. A back plate 2 is fixedly connected to one side of the housing 1, and a fixed box 3 is rotatably connected to one side of the back plate 2. When the back plate 2 is rotated to fit against the fixed box 3, a space for reserving wiring for routing and connection is formed between the back plate 2 and the fixed box 3. A cable management rack 4 arranged in a rectangular array is fixedly connected inside the fixed box 3. The surface of the cable management rack 4 is provided with several cable management grooves 41, and several grooves 5 are equidistantly opened on one side of the fixed box 3.

[0023] The housing 1 contains electronic components such as a main control circuit board, a fire detection interface module, a manual alarm triggering unit, an audible and visual alarm component, a power management module, and a linkage control output terminal. This fire-fighting low-voltage alarm device is responsible for receiving alarm signals from the detector, issuing audible and visual alarms, indicating the specific location of the fire, and can be linked with other fire-fighting equipment.

[0024] The device consists of a housing 1, a back plate 2, and a fixed box 3. The back plate 2 and the fixed box 3 are rotatably connected. When the back plate 2 is rotated to fit with the fixed box 3, a reserved space is formed between them. This space can be used for the arrangement and connection of the wires. Several wire racks 4 can fix and position the wires by inserting them into the corresponding wire grooves 41. The grooves 5 are used to allow the wires to pass into the fixed box 3 when the fixed box 3 and the back plate 2 are closed.

[0025] The four corners of the fixed box 3 are provided with gourd holes 6. When installing the fixed box 3, bolts and other fasteners are passed through the gourd holes 6. Due to the special shape of the gourd holes 6, the bolt head can enter from the large end in the initial stage of installation, and then move to the small end and tighten, so as to realize the installation and fixation of the fixed box 3.

[0026] A U-shaped clip 7 is symmetrically provided on one side of the fixed box 3, and a protrusion 8 is symmetrically provided on one side edge of the back plate 2. The protrusion 8 is inserted into the corresponding U-shaped clip 7. A pin 9 is symmetrically provided between the fixed box 3 and the back plate 2. The pin 9 passes through the corresponding U-shaped clip 7 and the protrusion 8 respectively.

[0027] The protrusions 8 are inserted into the corresponding U-shaped cards 7, and the pins 9 pass through the corresponding U-shaped cards 7 and protrusions 8 respectively to connect the U-shaped cards 7 and protrusions 8, thereby making the fixed box 3 and the back plate 2 rotatably connected. At the same time, due to this connection method, the back plate 2 and the fixed box 3 can also be separated by removing the pins 9.

[0028] Each groove 5 is equipped with a wire sleeve 10. When the wire is inserted into the groove 5, the wire sleeve 10 will wrap around the wire, providing a certain degree of protection for the wire, and at the same time guiding the wire to pass through the fixed box 3 along the direction of the groove 5.

[0029] A rotating rod 11 is rotatably connected inside the back plate 2. A baffle 12 is fixedly connected to the inner wall of one side of the fixed box 3. An embedding groove 13 is opened on the surface of the baffle 12. When the fixed box 3 is attached to the back plate 2, one end of the rotating rod 11 is set inside the embedding groove 13, and a locking tongue 14 is fixedly connected to one end of the rotating rod 11. A torsion spring 15 is sleeved on the outside of the rotating rod 11. The rotating rod 11 is elastically connected to the back plate 2 through the torsion spring 15.

[0030] Under normal conditions, due to the action of the torsion spring 15, the locking tongue 14 is misaligned with the embedded groove 13, and the back plate 2 is blocked by the baffle 12 and cannot be pulled open. When it is necessary to open the back plate 2, rotate the rotating rod 11 to make the locking tongue 14 and the embedded groove 13 aligned. At this time, the back plate 2 is no longer blocked by the baffle 12 and can be pulled open to open the fixed box 3.

[0031] The other end of the rotating rod 11 is symmetrically and fixedly connected with a lug 16, which is used to facilitate the rotation of the rotating rod 11.

[0032] The surface of the cable management rack 4 is provided with deformation grooves 17 at equal intervals. The deformation grooves 17 and the cable management grooves 41 are alternately arranged. When it is necessary to insert the wire into the cable management groove 41, the cable management rack 4 can generate a certain elastic deformation due to the presence of the deformation grooves 17, which increases the elasticity of the opening of the cable management groove 41, making it easier to insert the wire into the cable management groove 41 by external force. After being inserted, the cable management rack 4 returns to its original shape and fixes the wire in the cable management groove 41.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire alarm device for low-voltage electrical systems, comprising a housing (1), characterized in that, A back plate (2) is fixedly connected to one side of the housing (1), and a fixed box (3) is rotatably connected to one side of the back plate (2). When the back plate (2) is rotated to fit against the fixed box (3), a space for reserving cable management and connection is formed between the back plate (2) and the fixed box (3). A cable management rack (4) arranged in a rectangular array is fixedly connected inside the fixed box (3). Several cable management grooves (41) are provided on the surface of the cable management rack (4). Several grooves (5) are equidistantly opened on one side of the fixed box (3).

2. The fire alarm device for low-voltage electrical systems according to claim 1, characterized in that, The fixed box (3) has gourd holes (6) at each of its four internal corners.

3. The fire alarm device for low-voltage electrical systems according to claim 1, characterized in that, The fixed box (3) is symmetrically provided with U-shaped clips (7) on one side, and the back plate (2) is symmetrically provided with protrusions (8) on one side edge. The protrusions (8) are respectively inserted into the corresponding U-shaped clips (7). The fixed box (3) and the back plate (2) are symmetrically provided with pins (9), and the pins (9) pass through the corresponding U-shaped clips (7) and protrusions (8) respectively.

4. The fire alarm device for low-voltage electrical systems according to claim 1, characterized in that, Each groove (5) is provided with a wire sleeve (10).

5. The fire alarm device for low-voltage electrical systems according to claim 1, characterized in that, The back plate (2) is rotatably connected to a rotating rod (11). A baffle (12) is fixedly connected to the inner wall of one side of the fixed box (3). An embedding groove (13) is opened on the surface of the baffle (12). When the fixed box (3) is in contact with the back plate (2), one end of the rotating rod (11) is set inside the embedding groove (13), and a locking tongue (14) is fixedly connected to one end of the rotating rod (11). A torsion spring (15) is sleeved on the outside of the rotating rod (11). The rotating rod (11) is elastically connected to the back plate (2) through the torsion spring (15).

6. The fire alarm device for low-voltage electrical systems according to claim 5, characterized in that, The other end of the rotating rod (11) is symmetrically and fixedly connected with an ear piece (16).

7. The fire alarm device for low-voltage electrical systems according to claim 1, characterized in that, The surface of the cable management rack (4) is provided with deformation grooves (17) at equal intervals, and the deformation grooves (17) and the cable management grooves (41) are alternately arranged.

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