Alarm

Abstract

The utility model relates to the technical field of alarm equipment, in particular to an alarm, which comprises a front shell and a rear shell which are spliced with each other, and an electrical placement space is enclosed between the front shell and the rear shell; a battery compartment is arranged on the rear shell, a first nut column is arranged in an inner cavity of the battery compartment, a cover plate covering the battery compartment is arranged on the rear shell, an assembly hole corresponding to the first nut column is formed in the cover plate, and a sealing ring is arranged between the cover plate and the battery compartment. According to the utility model, external moisture can be prevented from entering the electrical placement space from the battery compartment.

Description

Technical Field

[0001] The utility model relates to the technical field of alarm equipment, in particular to an alarm. Background Art

[0002] Alarms are often used for safety warnings at construction sites. Due to the limited environment of construction sites, alarms typically require their own batteries for operation. Currently, the battery compartment of alarms is simply shielded by a snap-on cover. However, in rainy conditions, this structure can easily allow some splashing water to enter the alarm's electrical enclosure through the battery compartment, rendering the alarm inoperable. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an alarm device which can prevent external moisture from entering the electrical installation space from the battery compartment.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a battery fixing structure, comprising a front shell and a rear shell spliced with each other, and the front shell and the rear shell enclose an electrical placement space; a battery compartment is provided on the rear shell, and a first nut column is provided in the inner cavity of the battery compartment, and a cover plate covering the battery compartment is provided on the rear shell, and an assembly hole corresponding to the first nut column is provided on the cover plate, and a sealing ring is provided between the cover plate and the battery compartment.

[0005] Furthermore, a recessed groove is provided on the cover plate, and the assembly hole is located in the recessed groove.

[0006] Furthermore, the front housing and / or the rear housing is provided with a first sealing groove surrounding the electrical installation space, and a sealing ring is provided in the first sealing groove.

[0007] Furthermore, a sound outlet is provided on the front shell, a speaker mounting bracket is provided on one end face of the front shell facing the rear shell, the speaker mounting bracket is provided with a speaker cavity arranged toward the sound outlet, the speaker mounting bracket is provided with a second sealing groove surrounding the speaker cavity, and a sealing ring is provided in the second sealing groove.

[0008] Furthermore, an infrared sensing window is provided on the front shell, and a mounting tube connected to the infrared sensing window is provided on one end surface of the front shell facing the rear shell, and a sealing ring is provided on the inner wall of the mounting tube.

[0009] Furthermore, a plurality of second nut columns are provided on one end surface of the front shell facing the rear shell and one end surface of the rear shell facing the front shell.

[0010] Furthermore, the front shell and the rear shell are both provided with clamping plates, and an accessory clamping space is left between the clamping plates.

[0011] Furthermore, the width of the accessory clamping space is 5 mm to 10 mm.

[0012] Furthermore, the thickness of the splint is at least 3 mm.

[0013] Furthermore, the clamping plate is provided with a through hole.

[0014] The beneficial effects of this utility model are as follows: unlike the prior art, a first nut column is added to the inner cavity of the battery compartment, and an assembly hole is provided on the cover plate. A waterproof bolt is passed through the assembly hole and threadedly connected to the first nut column to cover the battery compartment, thereby preventing external moisture from entering the battery compartment through the assembly hole. A sealing ring is also provided between the cover plate and the battery compartment to further prevent external moisture from entering the battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of an alarm proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the rear shell structure of an alarm proposed by the utility model;

[0017] Figure 3 This is a structural diagram of the rear shell of an alarm proposed by the present invention without a cover plate;

[0018] Figure 4 This is a schematic diagram of the front shell structure of an alarm proposed by the utility model;

[0019] Figure 5 for Figure 4 An enlarged view of part A of an alarm;

[0020] Figure 6 This is a side structural diagram of an alarm proposed by the utility model;

[0021] Description of labels:

[0022] 1. Front housing; 11. Sound outlet; 12. Speaker mounting bracket; 121. Speaker cavity; 122. Second sealing groove; 13. Infrared sensor window; 14. Mounting tube;

[0023] 2. Rear housing; 21. Battery compartment; 211. First nut column; 22. Cover plate; 221. Assembly hole; 222. Sink;

[0024] 3. First sealing groove; 4. Second nut column;

[0025] 5. Clamping plate; 51. Accessory clamping space; 52. Through hole. DETAILED DESCRIPTION

[0026] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0027] Please refer to Figures 1 to 3 As shown, the utility model is an alarm, comprising a front shell 1 and a rear shell 2 spliced together, wherein the front shell 1 and the rear shell 2 enclose an electrical installation space; a battery compartment 21 is provided on the rear shell 2, a first nut column 211 is provided in the inner cavity of the battery compartment 21, a cover plate 22 covering the battery compartment 21 is provided on the rear shell 2, an assembly hole 221 corresponding to the first nut column 211 is provided on the cover plate 22, and a sealing ring (not shown in the figure) is provided between the cover plate 22 and the battery compartment 21.

[0028] Working Principle: A first nut column 211 is added to the inner cavity of the battery compartment 21, and an assembly hole 221 is provided on the cover plate 22. A waterproof bolt is passed through the assembly hole 221 and threadedly connected to the first nut column 211, so that the cover plate 22 covers the battery compartment 21, thereby preventing external moisture from entering the battery compartment 21 through the assembly hole 221. A sealing ring is also provided between the cover plate 22 and the battery compartment 21 to further prevent external moisture from entering the battery compartment 21.

[0029] The specific structure of the waterproof bolt can be a rubber member provided on the nut of the waterproof bolt. The rubber member abuts against the cover plate 22, causing the rubber member to deform to seal the gap between the screw of the waterproof bolt and the assembly hole 221. Of course, the screw of the waterproof bolt can also be covered with a rubber member. When the screw of the waterproof bolt is threadedly connected to the first nut column 211, the rubber member on the screw of the waterproof bolt deforms to further seal the gap between the screw and the first nut column 211.

[0030] Please refer to Figure 2 As shown, further, a sink groove 222 is provided on the cover plate 22 , and the assembly hole 221 is located in the sink groove 222 .

[0031] As can be seen from the above description, the sink groove 222 can prevent the nut of the waterproof bolt from exceeding the surface of the cover plate 22, so as to facilitate the placement of the alarm.

[0032] Please refer to Figure 4 and Figure 5 As shown, further, the front housing 1 and / or the rear housing 2 is provided with a first sealing groove 3 around the electrical installation space, and a sealing ring (not shown in the figure) is provided in the first sealing groove 3.

[0033] As can be seen from the above description, providing a sealing ring in the first sealing groove 3 can improve the sealing between the front housing 1 and the rear housing 2 to prevent external moisture from entering the electrical installation space from between the front housing 1 and the rear housing 2.

[0034] Please refer to Figure 4 As shown, further, a sound hole 11 is provided on the front shell 1, and a speaker mounting bracket 12 is provided on one end face of the front shell 1 facing the rear shell 2. The speaker mounting bracket 12 is provided with a speaker cavity 121 arranged toward the sound hole 11, and the speaker mounting bracket 12 is provided with a second sealing groove 122 surrounding the speaker cavity 121, and a sealing ring (not shown in the figure) is provided in the second sealing groove 122.

[0035] As can be seen from the above description, during the assembly of the speaker module, the sound-producing end of the speaker module is positioned within the speaker cavity 121 of the speaker mounting bracket 12, allowing the sound produced by the speaker module to be smoothly emitted from the sound outlet 11. The speaker module's mounting plate fits against the second sealing groove 122, forcing the sealing ring to deform and seal the gap between the speaker module and the speaker mounting bracket 12, thereby preventing external moisture from entering the electrical housing space through the sound outlet 11.

[0036] Please refer to Figure 1 and Figure 4 As shown, further, an infrared sensing window 13 is provided on the front shell 1, and a mounting tube 14 connected to the infrared sensing window 13 is provided on one end surface of the front shell 1 facing the rear shell 2, and a sealing ring (not shown in the figure) is provided on the inner wall of the mounting tube 14.

[0037] As can be seen from the above description, during the assembly of the infrared sensor, the infrared sensor's detection head is installed within the mounting tube 14, allowing the infrared sensor to detect the presence of a person through the infrared sensing window 13. Because the inner wall of the mounting tube 14 is provided with a sealing ring, the infrared sensor's detection head forces the sealing ring to deform when it is installed within the mounting tube 14, sealing the gap between the mounting tube 14 and the detection head, thereby preventing external moisture from entering the electrical installation space through the infrared sensing window 13.

[0038] Please refer to Figure 4 As shown, further, a plurality of second nut columns 4 are provided on one end surface of the front shell 1 facing the rear shell 2 and on one end surface of the rear shell 2 facing the front shell 1 .

[0039] As can be seen from the above description, the use of the second nut column 4 can facilitate the fixed installation of electrical equipment such as a PCB board, an infrared sensor, and a speaker module in the electrical installation space.

[0040] Please refer to Figure 1 and Figure 6As shown, further, the front shell 1 and the rear shell 2 are both provided with clamping plates 5 , and an accessory clamping space 51 is left between the clamping plates 5 .

[0041] The width of the accessory holding space 51 is B, and preferably B is 5 mm to 10 mm.

[0042] As can be seen from the above description, the prompt panel can be clamped in the accessory clamping space 51 by using the clamping plate 5, so that the alarm can not only warn through sound, but also use the panel warning method to remind.

[0043] Please refer to Figure 1 and Figure 6 As shown, further, the thickness of the splint 5 is C. Preferably, C is at least 3 mm.

[0044] It can be seen from the above description that the thickness of the splint 5 is at least 3 mm to ensure the strength of the splint 5 in use.

[0045] Please refer to Figures 1 to 5 As shown, further, a through hole 52 is provided on the clamping plate 5 .

[0046] As can be seen from the above description, screws or pins can pass through the through holes 52 to fix the panel clamped on the accessory clamping space 51 to prevent the panel from falling off the alarm. At the same time, the through holes 52 can also be used to allow the alarm to be hung for use.

[0047] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An alarm device comprising a front housing and a rear housing joined together, wherein the front housing and the rear housing enclose an electrical installation space; characterized in that: A battery compartment is provided on the rear shell, a first nut column is provided in the inner cavity of the battery compartment, a cover plate covering the battery compartment is provided on the rear shell, an assembly hole corresponding to the first nut column is provided on the cover plate, and a sealing ring is provided between the cover plate and the battery compartment.

2. The alarm according to claim 1, characterized in that: The cover plate is provided with a sinking groove, and the assembly hole is located in the sinking groove.

3. The alarm according to claim 1, characterized in that: The front housing and / or the rear housing is provided with a first sealing groove surrounding the electrical installation space, and a sealing ring is provided in the first sealing groove.

4. The alarm according to claim 1, characterized in that: A sound outlet is provided on the front shell body, a speaker mounting bracket is provided on one end face of the front shell body facing the rear shell body, the speaker mounting bracket is provided with a speaker cavity arranged toward the sound outlet, the speaker mounting bracket is provided with a second sealing groove surrounding the speaker cavity, and a sealing ring is provided in the second sealing groove.

5. The alarm according to claim 1, characterized in that: The front shell is provided with an infrared sensing window, and an end surface of the front shell facing the rear shell is provided with a mounting tube connected with the infrared sensing window, and a sealing ring is provided on the inner wall of the mounting tube.

6. The alarm according to claim 1, characterized in that: A plurality of second nut columns are provided on one end surface of the front shell facing the rear shell and on one end surface of the rear shell facing the front shell.

7. The alarm according to claim 1, characterized in that: The front shell and the rear shell are both provided with clamping plates, and an accessory clamping space is reserved between the clamping plates.

8. The alarm according to claim 7, characterized in that: The width of the accessory clamping space is 5 mm to 10 mm.

9. The alarm according to claim 7, characterized in that: The thickness of the splint is at least 3 mm.

10. The alarm according to claim 7, characterized in that: The clamping plate is provided with a through hole.

Images