Air-raid siren with easy installation

Abstract

The utility model relates to air defense alarm technology field, concretely relates to a convenient to install air defense alarm, including alarm body, including mounting seat and adjusting mechanism, the opposite two sides on mounting seat are provided with mounting lug, the two sides on alarm body are provided with mounting shaft, the both ends of mounting shaft can rotatably install on two mounting lug, adjusting mechanism can rotatably install on mounting seat or mounting lug, the mounting plate is provided on alarm body, the adjusting end of adjusting mechanism is hinged with mounting plate. This convenient to install air defense alarm designs mounting seat and adjusting mechanism, and alarm body can swing and install on mounting seat through mounting shaft, and the swing angle of alarm body on the vertical plane relative to mounting seat is adjusted by adjusting mechanism, and the situation that the external structure of mounting seat is installed is adapted, and the adaptability of installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of air raid siren technology, and specifically to an air raid siren that is easy to install. Background Technology

[0002] Air raid sirens are crucial devices for issuing wartime air raid warning signals and peacetime disaster warning signals. Currently, air raid sirens are mainly divided into two types: manual and electric. Electric sirens are generally more commonly used in densely populated areas due to their ease of control. These sirens are typically installed on high-altitude buildings and mountainsides using brackets. For example, patent CN201920543923.X – a bracket-type siren – uses legs and support columns to support the base plate. The base plate better supports the frame, which in turn provides support to the mounting blocks. The mounting blocks are used to install positioning modules, radio antennas, wind turbines, and other equipment, improving installation convenience. These types of alarms typically feature multiple speakers, each generally responsible for propagating sound in only one direction. However, these speakers are directly mounted on the base plate, making the mounting angle relative to the base plate unadjustable. Furthermore, the support legs are mounted on the external building structure, and the unevenness of the mounting surface makes it difficult to maintain the balance of the entire support leg during installation. This causes the base plate to tilt, which in turn causes the speakers to tilt after installation. Consequently, the alarm sound cannot be guaranteed to propagate in the preset direction, reducing its effectiveness. Therefore, workers must adjust the support legs, for example, by first leveling the surface with concrete blocks before installing the legs. This makes the entire alarm installation time-consuming, labor-intensive, and reduces installation convenience. Utility Model Content

[0003] In order to overcome one of the shortcomings of the existing technology, the purpose of this utility model is to provide an air raid siren that is easy to install. This easy-to-install air raid siren has a simple structure and can adjust the angle of the sound propagation in the vertical direction, thus improving the ease of installation.

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

[0005] An easy-to-install air raid siren includes a siren body, a mounting base, and an adjustment mechanism. The mounting base has mounting ears on opposite sides, and the siren body has mounting shafts on both sides. The two ends of the mounting shafts are rotatably mounted on the two mounting ears. The adjustment mechanism is rotatably mounted on the mounting base or the mounting ears. The siren body has a mounting plate, and the adjustment end of the adjustment mechanism is hinged to the mounting plate.

[0006] Furthermore, the adjustment mechanism includes a rotating shaft, an adjusting bolt, and an L-shaped head. One end of the L-shaped head is rotatably mounted on one end of the adjusting bolt, and the other end of the L-shaped head is rotatably mounted on a mounting base. One end of the rotating shaft is rotatably mounted on a mounting base or a mounting lug, and a fixing nut is provided on the other end of the rotating shaft. The other end of the adjusting bolt is adapted to the fixing nut.

[0007] Furthermore, an insertion part is provided on the end of the rotating shaft away from the fixed nut. The insertion part is movably inserted into the mounting block on the mounting base, and the insertion part is locked onto the mounting block by a locking nut.

[0008] Furthermore, each of the two mounting ears has a mounting step on its opposite side, and each mounting step has a shock-absorbing block. The mounting ear has a mounting hole that matches the mounting shaft, and the shock-absorbing block has a hole that matches the mounting hole. The opposite sides of the two shock-absorbing blocks abut against the outer wall of the corresponding side of the alarm body.

[0009] Furthermore, on the opposite side of the two shock-absorbing blocks, abutting grooves are evenly provided on the outer periphery of the hole, and a number of protrusions that cooperate with the abutting grooves are provided on the outer wall of the alarm body.

[0010] Furthermore, connecting plates are provided on the opposite outer walls of the alarm body, and each connecting plate is provided with the mounting shaft, and the protrusion is provided on the outward side of the mounting block.

[0011] Furthermore, the mounting base is provided with several fixing holes.

[0012] Furthermore, a wire harness constraint sleeve is provided on one end of the mounting base located at the tail of the alarm body, and an anti-abrasion rubber layer is provided inside the wire harness constraint sleeve.

[0013] Furthermore, the mounting base has connecting portions extending outward from both ends of the mounting ear.

[0014] Furthermore, it also includes a bracket, on which the mounting base is mounted.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model provides an easy-to-install air raid siren design, which includes a mounting base and an adjustment mechanism. The siren body can be swung on the mounting base via a mounting shaft. The adjustment mechanism adjusts the sway angle of the siren body relative to the mounting base in the vertical plane to adapt to the external structure on which the mounting base is installed, thus improving the adaptability of the installation.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;

[0020] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0022] Explanation of icon numbers:

[0023] Alarm body 10, mounting shaft 11, mounting plate 12, protruding strip 13, connecting plate 14, mounting base 20, mounting ear 21, mounting block 22, mounting step 23, shock absorber block 24, abutment groove 25, mounting hole 26, wire harness constraint sleeve 27, connecting part 28, fixing hole 29, adjusting mechanism 30, rotating shaft 31, adjusting bolt 32, L-shaped head 33, fixing nut 34, insertion part 35, locking nut 36, bracket 40. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] Reference Figures 1 to 4 The air raid siren shown includes an siren body 10, a mounting base 20, and an adjustment mechanism 30. The mounting base 20 has mounting ears 21 on opposite sides. The siren body 10 has mounting shafts 11 on both sides. The two ends of the mounting shafts 11 are rotatably mounted on the two mounting ears 21. The adjustment mechanism 30 is rotatably mounted on the mounting base 20 or the mounting ears 21. The siren body 10 has a mounting plate 12, and the adjustment end of the adjustment mechanism 30 is hinged to the mounting plate 12.

[0026] Specifically, in this application, the mounting base 20 and mounting ear 21 are actually a U-shaped structure, and the alarm body 10 is actually a speaker integrating multiple functions, such as the alarm host and control module. This structure is a common technology and will not be described in detail here. The adjustment mechanism 30 is used to adjust the angle of the alarm body 10 relative to the mounting ear 21. In actual use, when the alarm body 10 rotates around its front propagation direction, it does not affect its propagation effect. Only when it swings around the two sides perpendicular to the sound propagation direction will the direction of sound propagation be affected. In practical applications, the pitch angle of the alarm body 10 is generally adjusted.

[0027] This easy-to-install air raid siren is designed with a mounting base 20 and an adjustment mechanism 30. The siren body 10 can be swung on the mounting base 20 via the mounting shaft 11. The adjustment mechanism 30 is used to adjust the swing angle of the siren body 10 relative to the mounting base 20 in the vertical plane to adapt to the external structure on which the mounting base 20 is installed, thus improving the adaptability of the installation.

[0028] See Figures 1 to 3 In one embodiment of this application, to facilitate adjustment of the pitch angle of the alarm body 10, the adjustment mechanism 30 includes a rotating shaft 31, an adjusting bolt 32, and an L-shaped head 33. One end of the L-shaped head 33 is rotatably mounted on one end of the adjusting bolt 32, and the other end of the L-shaped head 33 is rotatably mounted on the mounting base 20. One end of the rotating shaft 31 is rotatably mounted on the mounting base 20 or the mounting lug 21, and a fixing nut 34 is provided on the other end of the rotating shaft 31. The other end of the adjusting bolt 32 is adapted to the fixing nut 34. The L-shaped head 33 can rotate relative to the adjusting bolt 32. This design ensures that the L-shaped head 33 does not rotate with the adjusting bolt 32, thus maintaining the connection between the L-shaped head 33 and the mounting base 20.

[0029] In the above embodiments, to facilitate a secure and non-loose connection between the rotating shaft 31 and the mounting base 20, and to ensure the stability of the angle between the alarm body 10 and the mounting base 20, an insertion part 35 is provided on the end of the rotating shaft 31 away from the fixing nut 34. The insertion part 35 is movably inserted into the mounting block 22 on the mounting base 20, and the insertion part 35 is locked onto the mounting block 22 by a locking nut 36. A step is formed between the insertion part 35 and the rotating shaft 31, and the mounting block 22 can be locked in place by the locking nut 36 in conjunction with the step.

[0030] See Figure 3In one embodiment of this application, to prevent excessive vibration caused by the alarm body 10 transmitting vibrations to the mounting base 20 when playing sound, mounting steps 23 are provided on opposite sides of the two mounting ears 21. Each mounting step 23 is provided with a shock-absorbing block 24. The mounting ears 21 are provided with mounting holes 26 adapted to the mounting shaft 11, and the shock-absorbing blocks 24 are provided with holes adapted to the mounting holes 26. The opposite sides of the two shock-absorbing blocks 24 abut against the outer wall of the corresponding side of the alarm body 10. The shock-absorbing blocks 24, by pressing against the outer wall of the corresponding side of the alarm body 10, not only achieve shock absorption but also prevent relative movement between the two, thus reducing wear on the outer wall of the alarm body 10.

[0031] In practical applications, the mounting plate 12 and the L-shaped head 33 are hinged, and there is a gap between them, or there is a gap between the mounting shaft 11 and the mounting hole 26. Therefore, the alarm body 10 will vibrate when playing sound normally, and the alarm body 10 will still swing slightly around the mounting shaft 11. In order to reduce this swing and protect the outer wall of the alarm body 10, and to prevent the alarm body 10 from swinging around the mounting shaft 11, abutment grooves 25 are evenly provided on the outer periphery of the hole on the opposite side of the two damping blocks 24. Several protrusions 13 that cooperate with the abutment grooves 25 are provided on the outer wall of the alarm body 10. The abutment grooves 25 and the protrusions 13 cooperate with each other, which can limit the swing of the alarm body 10 around the mounting shaft 11 to a certain extent.

[0032] Furthermore, in the above embodiment, to facilitate the installation of the mounting shaft 11, connecting plates 14 are provided on the opposite outer walls of the alarm body 10. Each connecting plate 14 is provided with the mounting shaft 11, and the protrusion 13 is provided on the outward side of the mounting block 22. The connecting plates 14 are fixed to the outer wall of the alarm body 10 by screws, which facilitates disassembly and assembly. The mounting shaft 11 is directly machined on the connecting plate 14, which facilitates subsequent processing.

[0033] See Figure 3 and Figure 4 In one embodiment of this application, for ease of installation and fixation, the mounting base 20 is provided with a plurality of fixing holes 29. This arrangement allows it to be fixed to an external mounting structure, such as a bracket structure, by means of screws passing through the fixing holes 29. Therefore, in one embodiment of this application, the application also includes a bracket 40, on which the mounting base 20 is mounted, specifically, the mounting base 20 is fixed to the bracket 40 by means of screws passing through the fixing holes 29.

[0034] During actual installation, since the alarm body 10 is electrically driven and requires wiring, the mounting base 20 is provided with a wire harness constraint sleeve 27 at one end of the rear of the alarm body 10. The wire harness constraint sleeve 27 has an anti-abrasion rubber layer inside, and the external wires pass through the wire harness constraint sleeve 27 to standardize the wiring.

[0035] Furthermore, in the above embodiments, since the entire air raid alarm may have multiple alarm bodies 10, in order to fix these alarm bodies 10 to each other, the mounting base 20 has connecting portions 28 extending outward from both ends of the mounting ear 21, and adjacent connecting portions 28 of two adjacent mounting bases 20 are fixed together by bolts, which also facilitates relative disassembly and assembly.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An easy-to-install air raid siren, comprising a siren body, characterized in that, The device includes a mounting base and an adjustment mechanism. The mounting base has mounting ears on opposite sides, and the alarm body has mounting shafts on both sides. The two ends of the mounting shafts are rotatably mounted on the two mounting ears. The adjustment mechanism is rotatably mounted on the mounting base or mounting ears. The alarm body has a mounting plate, and the adjustment end of the adjustment mechanism is hinged to the mounting plate.

2. The air raid siren that is easy to install according to claim 1, characterized in that: The adjustment mechanism includes a rotating shaft, an adjusting bolt, and an L-shaped head. One end of the L-shaped head is rotatably mounted on one end of the adjusting bolt, and the other end of the L-shaped head is rotatably mounted on a mounting base. One end of the rotating shaft is rotatably mounted on a mounting base or a mounting lug, and a fixing nut is provided on the other end of the rotating shaft. The other end of the adjusting bolt is adapted to the fixing nut.

3. The air raid siren that is easy to install according to claim 2, characterized in that: An insert portion is provided on the end of the rotating shaft away from the fixed nut. The insert portion is movably inserted into the mounting block on the mounting base, and the insert portion is locked onto the mounting block by a locking nut.

4. The air raid siren that is easy to install according to claim 1, characterized in that: Each of the two mounting ears has a mounting step on one of its opposite sides, and each mounting step has a shock-absorbing block. The mounting ear has a mounting hole that matches the mounting shaft, and the shock-absorbing block has a hole that matches the mounting hole. The opposite sides of the two shock-absorbing blocks abut against the outer wall of the corresponding side of the alarm body.

5. An air raid siren that is easy to install according to claim 4, characterized in that: On the opposite side of the two shock-absorbing blocks, there are uniformly arranged abutment grooves on the outer periphery of the hole, and there are several protrusions on the outer wall of the alarm body that cooperate with the abutment grooves.

6. An air raid siren that is easy to install according to claim 5, characterized in that: Connecting plates are provided on the opposite outer walls of the alarm body, and each connecting plate is provided with the mounting shaft. The protrusion is provided on the outward side of the mounting block.

7. An air raid siren that is easy to install according to any one of claims 1-6, characterized in that: The mounting base is provided with several fixing holes.

8. An air raid siren that is easy to install according to any one of claims 1-6, characterized in that: The mounting base is provided with a wire harness constraint sleeve at one end of the rear of the alarm body, and the wire harness constraint sleeve is provided with an anti-abrasion rubber layer inside.

9. An air raid siren that is easy to install according to any one of claims 1-6, characterized in that: The mounting base has connecting portions extending outward from both ends of the mounting ear.

10. An air raid siren that is easy to install according to any one of claims 1-6, characterized in that: It also includes a bracket, on which the mounting base is mounted.

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