Fire detector

Abstract

The utility model relates to the technical field of fire detectors, and particularly discloses a fire detector, which comprises a mounting plate, a base is fixed on the mounting plate, a shell is detachably connected to the outer side of the base, a cavity is formed in the inner lower part of the shell, a connecting block is fixed in the middle of the cavity, and the connecting block is detachably connected with the base. A plurality of arc-shaped clamping blocks are slidably connected to the outer side of the connecting block, a groove is formed in the middle of the base, the groove is connected with the connecting block in a matched mode, a plurality of clamping grooves are formed in the outer side of the groove and communicate with the groove, the clamping grooves are connected with the arc-shaped clamping blocks in a matched mode, and the arc-shaped clamping blocks are arranged in a one-fourth sphere shape; according to the utility model, the arc-shaped clamping blocks, the clamping grooves, the pushing and pressing blocks and the connecting plates are arranged, so that the dismounting convenience of the fire detector can be improved, maintenance or cleaning is facilitated, and meanwhile, the situation that connection is loose or reinstallation cannot be carried out due to too many dismounting times can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire detector technical field, concretely relates to a fire detector. BACKGROUND

[0002] Fire detector is the equipment that is probed to the scene, and fire is discovered in the fire-fighting automatic alarm system, and fire detector is the sense organ of the system, its function is monitoring whether the fire occurs in the environment, once the fire, the characteristic physical quantity such as temperature, smoke, gas and radiation light intensity etc. of fire is converted into electric signal, and immediately acts and sends alarm signal to fire alarm controller.

[0003] The current fire detector is usually connected with the shell integrated structure, and the connecting card seat and the wall body are fixedly connected by rivets or bolts during installation, so that the fire detector can be directly installed, and when the fire detector needs to be removed for maintenance or cleaning, the rivets or bolts need to be removed before the removal.

[0004] In the prior art, when the fire detector needs to be removed for maintenance or cleaning, the rivets or bolts fixed with the wall body need to be removed, and the fire detector is usually installed on the wall top surface, so that it is time-consuming and laborious during removal, high-altitude operation, and inconvenient operation, and too many removal times can cause loose connection or failure to reinstall, affecting subsequent use.

[0005] Therefore, the skilled in the art provides a fire detector to solve the problems in the background art. SUMMARY

[0006] The utility model discloses a fire detector, solve the following technical problem:

[0007] How to improve the convenience of removing the fire detector, and avoid the situation that the connection is loose or cannot be reinstalled due to too many removal times.

[0008] The purpose of the utility model can be realized by the following technical scheme:

[0009] A fire detector, comprising a mounting plate, a base is fixed on the mounting plate, and an outer shell is detachably connected to the outer side of the base.

[0010] A cavity is formed in the inner lower part of the outer shell, a connecting block is fixed in the middle of the cavity, a plurality of arc-shaped clamping blocks are slidably connected to the outer side of the connecting block, a groove is formed in the middle of the base, the groove is connected to the connecting block, a plurality of clamping grooves are formed in the outer side of the groove and are connected thereto, and the clamping grooves are connected to the arc-shaped clamping blocks.

[0011] The arc-shaped clamping block is in the shape of a quarter of a sphere.

[0012] Further, a plurality of arc-shaped grooves are formed in the base, and a push block is slidably connected in the arc-shaped grooves; a supporting spring is fixedly connected between the push block and one side of the arc-shaped groove.

[0013] Further, sliding blocks are fixed to the two sides of the push block, and guide grooves are formed in the two sides of the arc-shaped groove; the sliding blocks are slidably connected in the guide grooves.

[0014] Further, a plurality of connecting plates are fixedly connected to the outer side of the connecting block, and the connecting plates are slidably connected with the arc-shaped grooves; an arc-shaped concave surface is formed in one side of the connecting plate, and the arc-shaped concave surface is connected with the push block.

[0015] Further, a plurality of anti-skid rings are fixedly connected to the outer side of the base, and the plurality of anti-skid rings are equidistantly arranged; the cross section of the anti-skid ring is semispherical.

[0016] Further, a magnetic plate one is fixedly connected to the bottom of the connecting block, and a magnetic plate two is fixedly connected to the inner bottom of the groove; the magnetic plate one and the magnetic plate two are magnetically attracted.

[0017] Further, a plurality of limiting grooves are formed in the connecting block, and a limiting plate is fixedly connected to one side of the arc-shaped clamping block; the limiting plate is slidably connected in the limiting groove; and a tension spring is fixedly connected between the limiting plate and the limiting groove.

[0018] Further, a plurality of screws are arranged on the mounting plate, and the screws are used for fixing the mounting plate on the wall surface; an indicator lamp is connected to the shell; and a detector main body is arranged in the shell.

[0019] The utility model discloses a beneficial effect:

[0020] The utility model discloses a split type shell and base, arc-shaped clamping block, clamping groove, push block, connecting plate are provided, when disassembling, rotate the shell, make a plurality of arc-shaped blocks be under the limiting effect of a plurality of clamping grooves, shrink towards the connecting block, at this moment, the shell and detector main body can be taken down to overhaul or clean down by pulling down, convenient operation, even if disassembling many times also can not appear the situation of loose connection or can not carry out again installation, and when installing, supporting spring and push block will extrude connecting plate and arc-shaped groove one side closely, cooperate a plurality of anti-skid rings and can effectively avoid the self-rotation of the shell, ensure the stability when installing. DRAWINGS

[0021] The utility model discloses a beneficial effect:

[0022] Figure 1This is a three-dimensional structural diagram of the present invention during assembly;

[0023] Figure 2 This is a schematic diagram of the three-dimensional connection structure of this utility model when disassembled;

[0024] Figure 3 This is a schematic diagram of the internal connection structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure of the arc-shaped card block of this utility model;

[0026] Figure 5 This is a schematic diagram of the connecting plate of this utility model.

[0027] Figure label:

[0028] 1. Mounting plate; 2. Housing; 3. Indicator light; 4. Screw; 5. Base; 6. Arc groove; 7. Arc-shaped locking block; 8. Groove; 9. Slot; 10. Pushing block; 11. Support spring; 12. Anti-slip ring; 13. Connecting plate; 14. Cavity; 15. Connecting block; 16. Limiting groove; 17. Tension spring; 18. Detector body; 19. Arc concave surface; 20. Magnetic plate one; 21. Magnetic plate two; 22. Limiting plate; 23. Guide groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0030] Please see the appendix Figures 1-5 A fire detector according to an embodiment of the present invention includes a mounting plate 1, a base 5 fixed on the mounting plate 1, and a housing 2 detachably connected to the outside of the base 5. During installation, the housing 2 is first connected to the outside of the base 5, and then the mounting plate 1 is fixed to the wall. During maintenance or cleaning, the housing 2 can be removed, which effectively avoids the situation where the connection becomes loose or cannot be reinstalled due to excessive removal.

[0031] A cavity 14 is provided in the lower inner part of the outer shell 2. A connecting block 15 is fixed in the middle of the cavity 14. Multiple arc-shaped locking blocks 7 are slidably connected to the outer side of the connecting block 15. The arc-shaped locking blocks 7 are set in the shape of a quarter sphere. The arc-shaped locking blocks 7 can be connected to the slots 9 by pressing, and can be separated from the slots 9 by rotating, thus achieving disassembly. A groove 8 is provided in the middle of the base 5. The groove 8 is connected to the connecting block 15. Multiple slots 9 are provided and connected to the outer side of the groove 8. The slots 9 are connected to the arc-shaped locking blocks 7.

[0032] The base 5 has multiple arc-shaped grooves 6, and a push block 10 is slidably connected in the arc-shaped groove 6. A support spring 11 is fixedly connected between the push block 10 and one side of the arc-shaped groove 6. One side of the push block 10 is hemispherical. When the outer shell 2 is connected to the base 5, the multiple arc-shaped locking blocks 7 are pressed and retracted into the connecting block 15 under the limiting action of the groove 8. Then, when the connecting block 15 is completely connected in the groove 8, the arc-shaped locking blocks 7 are located on one side of the slot 9 and automatically pop out and connect into the slot 9. Example

[0033] Based on Example 1, please refer to the appendix. Figures 2-5 Both sides of the push block 10 are fixed with sliders, and both sides of the arc groove 6 are provided with guide grooves 23. The sliders are slidably connected in the guide grooves 23. The guide grooves 23 can guide and limit the push block 10, effectively preventing the push block 10 from coming out of the guide grooves 23.

[0034] The mounting plate 1 is fixedly connected to multiple connecting plates 13 on the outside of the connecting block 15. The connecting plates 13 are slidably connected to the arc groove 6. An arc concave surface 19 is provided on one side of the connecting plate 13. The arc concave surface 19 is connected to the pushing block 10. The arc concave surface 19 can increase the fit between the connecting plate 13 and the pushing block 10 and improve the effectiveness of the pushing block 10 in pressing and limiting the connecting plate 13. When the arc-shaped locking block 7 and the locking groove 9 are connected to each other, the connecting plate 13 presses the pushing block 10 and the support spring 11 along the arc surface of the pushing block 10, and then inserts into one end of the arc groove 6. Under the action of the pushing block 10 and the support spring 11, it can press one side of the connecting plate 13 to fit with the arc groove 6, so as to prevent the outer shell 2 from rotating during connection.

[0035] During disassembly, by rotating the outer shell 2, multiple arc-shaped locking blocks 7 are retracted into the connecting block 15 under the limiting action of multiple locking slots 9. At the same time, the connecting plate 13 squeezes the pushing block 10 and the support spring 11 and retracts towards the arc-shaped groove 6. At this time, the outer shell 2 and the detector body 18 can be removed by pulling downwards for inspection or cleaning. The operation is convenient.

[0036] Multiple anti-slip rings 12 are fixedly connected to the outer side of the base 5. The multiple anti-slip rings 12 are all spaced at equal intervals. The cross-section of the anti-slip rings 12 is hemispherical. As a result, the outer shell 2 can be pressed downward along the arc surface of the anti-slip rings 12 and connected to the base 5, thereby improving the tightness and stability of the connection between the outer shell 2 and the base 5, and further preventing the outer shell 2 from rotating.

[0037] A magnetic plate 20 is fixedly connected to the bottom of the connecting block 15, and a magnetic plate 21 is fixedly connected to the inner bottom of the groove 8. The magnetic plates 20 and 21 are magnetically attracted to each other. Therefore, when the outer shell 2 is connected to the base 5, the connecting block 15 and the groove 8 can fit more tightly under the attraction of the magnetic plates 20 and 21, which further increases the stability of the connection between the outer shell 2 and the base 5.

[0038] Multiple limiting grooves 16 are provided in the connecting block 15. A limiting plate 22 is fixedly connected to one side of the arc-shaped locking block 7. The limiting plate 22 is slidably connected in the limiting groove 16. A tension spring 17 is fixedly connected between the limiting plate 22 and the limiting groove 16. The limiting plate 22 limits the arc-shaped locking block 7 to prevent it from detaching from the connecting block 15. The limiting plate 22 is semi-circular, which can reduce the resistance when sliding in the limiting groove 16, making it easier for the arc-shaped locking block 7 to slide more smoothly with the connecting block 15.

[0039] The mounting plate 1 is connected to multiple screws 4 with set intervals, which are used to fix the mounting plate 1 to the wall. The housing 2 is connected to indicator lights 3, which indicate the working status and emit a clear alarm signal when fire signs are detected. Additionally, if the fire detector malfunctions, it may flash or light up in a specific manner to alert the user of the malfunction. The housing 2 houses the detector body 18, which mainly consists of a sensor, a signal processing unit, an alarm output section, and a power supply section. The signal processing unit amplifies, filters, and shapes the electrical signal output from the sensor, making it a standard signal that can be recognized and processed by subsequent circuits. It analyzes and processes the signal to determine whether the alarm conditions are met and decides whether to trigger the alarm based on the judgment result. When the detector detects a fire or other abnormal situation, it emits an audible and visual alarm signal to remind people to take appropriate measures. The power supply section provides the power required for the detector to operate, ensuring its normal operation.

[0040] Furthermore, the outer casing 2 can be equipped with an indicator arrow to indicate the rotation direction during disassembly. Vertical stripes parallel to the connecting plate 13 can also be provided on the side of the outer casing 2, and vertical stripes parallel to one end of the arc groove 6 (near the push block 10) can be provided on the side of the base 5, making it easier for people to install and disassemble.

[0041] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fire detector, comprising a mounting plate (1), characterized in that, A base (5) is fixed on the mounting plate (1), and a shell (2) is detachably connected to the outside of the base (5); The lower inner part of the outer shell (2) is provided with a cavity (14), a connecting block (15) is fixed in the middle of the cavity (14), and multiple arc-shaped locking blocks (7) are slidably connected to the outer side of the connecting block (15). The middle part of the base (5) is provided with a groove (8), the groove (8) and the connecting block (15) are connected to each other, and multiple slots (9) are provided and connected to the outer side of the groove (8), the slots (9) and the arc-shaped locking blocks (7) are connected to each other. The arc-shaped card block (7) is set in the shape of a quarter of a sphere.

2. A fire detector according to claim 1, characterized in that: The base (5) has multiple arc-shaped grooves (6), and a push block (10) is slidably connected in the arc-shaped groove (6). A support spring (11) is fixedly connected between the push block (10) and one side of the arc-shaped groove (6). One side of the push block (10) is hemispherical.

3. A fire detector according to claim 2, characterized in that: The push block (10) has sliders fixed on both sides, and the arc groove (6) has guide grooves (23) on both sides. The sliders are slidably connected in the guide grooves (23).

4. A fire detector according to claim 3, characterized in that: The mounting plate (1) is fixedly connected to multiple connecting plates (13) on the outside of the connecting block (15). The connecting plate (13) is slidably connected to the arc groove (6). An arc concave surface (19) is provided on one side of the connecting plate (13). The arc concave surface (19) is connected to the pushing block (10) in cooperation.

5. A fire detector according to claim 1, characterized in that: Multiple anti-slip rings (12) are fixedly connected to the outer side of the base (5). The multiple anti-slip rings (12) are all spaced at equal intervals, and the cross-section of the anti-slip rings (12) is hemispherical.

6. A fire detector according to claim 1, characterized in that: A magnetic plate 1 (20) is fixedly connected to the bottom of the connecting block (15), and a magnetic plate 2 (21) is fixedly connected to the inner bottom of the groove (8). The magnetic plate 1 (20) and the magnetic plate 2 (21) are magnetically attracted to each other.

7. A fire detector according to claim 1, characterized in that: The connecting block (15) has multiple limiting grooves (16) inside. One side of the arc-shaped card block (7) is fixedly connected to a limiting plate (22). The limiting plate (22) is slidably connected in the limiting groove (16). A tension spring (17) is fixedly connected between the limiting plate (22) and the limiting groove (16).

8. A fire detector according to claim 1, characterized in that: The mounting plate (1) is connected to a plurality of screws (4) with a set interval. The screws (4) are used to fix the mounting plate (1) to the wall. The housing (2) is connected to an indicator light (3). The housing (2) contains the detector body (18).

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