Alarm device for fire-fighting detection

Abstract

The utility model relates to the field of fire-fighting detection, and discloses a fire-fighting detection alarm device which comprises a mounting plate, the lower end of the mounting plate is fixedly connected with a connecting shell, the lower end of the connecting shell is provided with a round sleeve, the inner wall of the round sleeve is slidably connected with an alarm body, and the inner wall of the connecting shell is rotatably connected with two rotating shafts. Two rope winding rollers are fixedly connected to the outer walls of the rotating shafts, pull ropes are fixedly connected to the outer walls of the rope winding rollers, the upper end of the round sleeve is fixedly connected with the multiple pull ropes, and auxiliary gears are fixedly connected to one sides of the two rotating shafts; according to the device, under the action of the transmission assembly, the round sleeve can be driven to ascend and descend through the pull rope through the auxiliary gear, the rotating shaft and the rope winding roller, so that the alarm body in the round sleeve can be lowered to a low position, and meanwhile, under the action of the clamping assembly, the alarm body is convenient to disassemble and assemble; and the portability when the alarm body needs to be checked or maintained subsequently is improved.

Description

Technical Field

[0001] The present application relates to the field of fire detection, and in particular to an alarm device for fire detection. Background Art

[0002] Fire inspection refers to the regular inspection and testing of fire-fighting equipment and fire safety measures in buildings, facilities or areas to ensure their normal operation and effectiveness. Fire inspection includes the inspection, testing and maintenance of fire-fighting equipment such as smoke detectors, so as to assess and eliminate fire hazards in buildings.

[0003] However, most existing alarms are fixed to the top of the wall by bolts or the like, which makes it inconvenient to disassemble the alarm body when the alarm needs to be inspected or repaired, and the degree of flexibility during disassembly and assembly is low.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problem that existing alarms are inconvenient to disassemble when they need to be inspected or repaired, the present application provides an alarm device for fire detection.

[0006] The present application provides a fire detection alarm device that adopts the following technical solution:

[0007] A fire detection alarm device comprises a mounting plate, the lower end of the mounting plate is fixedly connected to a connecting shell, the lower end of the connecting shell is provided with a circular sleeve, the inner wall of the circular sleeve is slidably connected to an alarm body, the inner wall of the connecting shell is rotatably connected to two rotating shafts, the outer walls of the rotating shafts are fixedly connected to two rope winding rollers, the outer walls of the rope winding rollers are fixedly connected to a pull rope, the upper ends of the circular sleeves are fixedly connected to multiple pull ropes, one side of the two rotating shafts is fixedly connected to a sub-gear, the outer wall of the connecting shell is fixedly connected to a fixing frame, the inner wall of the fixing frame is provided with a transmission assembly, the outer wall of the alarm body is fixedly connected to two blocking blocks, and the outer wall of the circular sleeve is provided with two positioning assemblies.

[0008] Preferably, the transmission assembly includes a rotating rod, a main gear, a worm gear, a fixed plate, a worm and a servo motor, the inner wall of the fixed frame is rotatably connected to the rotating rod, the rod body of the rotating rod is fixedly connected to the main gear, the rod body of the rotating rod is fixedly connected to the worm gear, the outer walls of the fixed frame are fixedly connected to the two fixed frames, the inner wall of the fixed plate is rotatably connected to the worm, and the outer wall of the fixed plate is fixedly connected to the servo motor.

[0009] Preferably, the positioning assembly includes a connecting plate, an insert rod, a retaining ring and a spring. The outer wall of the circular sleeve is fixedly connected to the two connecting plates, the plate body of the connecting plate is slidingly connected to the insert rod, the rod body of the insert rod is fixedly connected to the retaining ring, the upper and lower ends of the spring are fixedly connected to the retaining ring and the outer wall of the connecting plate, and the insert rod is engaged with the card block.

[0010] Preferably, the output end of the servo motor is fixedly connected to the worm, the worm wheel and the worm are meshed with each other, and the main gear is meshed with two sub-gears.

[0011] Preferably, a synchronization rod is provided at the upper end of the circular sleeve, and the outer wall of the synchronization rod is fixedly connected to the outer walls of the plurality of pull ropes.

[0012] Preferably, the outer wall of the circular sleeve is provided with two sliding grooves, and the inner walls of the sliding grooves are slidably connected to the outer wall of the clamping block.

[0013] In summary, this application has the following beneficial technical effects:

[0014] 1. The alarm body is set up to alarm when the smoke concentration is too high. Under the action of the transmission component, the round sleeve can be raised and lowered by the pull rope through the sub-gear, rotating shaft and rope roller, so that the alarm body inside the round sleeve can be lowered to the lowest point. At the same time, under the action of the positioning component, the alarm body can be easily disassembled and assembled, thereby improving the portability when the alarm body needs to be inspected or repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0016] Figure 2 This is a schematic structural diagram of a latch assembly according to an embodiment of the application;

[0017] Figure 3 This is a schematic structural diagram of a connection shell according to an embodiment of the application;

[0018] Figure 4 It is a structural schematic diagram of the transmission assembly of the application embodiment.

[0019] Explanation of the accompanying reference numerals: 1. Mounting plate; 2. Connecting shell; 3. Round sleeve; 4. Alarm body; 5. Rotating shaft; 6. Rope winding roller; 7. Pull rope; 8. Fixed frame; 9. Sub-gear; 10. Rotating rod; 11. Main gear; 12. Worm gear; 13. Fixed plate; 14. Worm; 15. Servo motor; 16. Block; 17. Connecting plate; 18. Insert rod; 19. Retaining ring; 20. Spring; 21. Synchronizing rod. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The present application discloses an alarm device for fire detection, referring to Figure 1 , including a mounting plate 1, which can be installed on the top of the wall by bolts, etc., the lower end of the mounting plate 1 is fixedly connected to a connecting shell 2, the lower end of the connecting shell 2 is provided with a circular sleeve 3, the inner wall of the circular sleeve 3 is slidably connected to the alarm body 4, which can detect the concentration of smoke, the inner wall of the connecting shell 2 is rotatably connected to two rotating shafts 5, the outer walls of the rotating shafts 5 are fixedly connected to two rope winding rollers 6, the outer walls of the rope winding rollers 6 are fixedly connected to pull ropes 7, which can drive the circular sleeve 3 and the alarm body 4 to rise and fall, the upper ends of the circular sleeves 3 are fixedly connected to multiple pull ropes 7, one side of the two rotating shafts 5 is fixedly connected to a sub-gear 9, the outer wall of the connecting shell 2 is fixedly connected to a fixing frame 8, and the inner wall of the fixing frame 8 is provided with a transmission assembly, which can drive the two rotating shafts 5 to rotate;

[0022] Specifically, refer to Figure 4 The transmission assembly includes a rotating rod 10, a main gear 11, a worm gear 12, a fixed plate 13, a worm 14 and a servo motor 15. The inner wall of the fixed frame 8 is rotatably connected to the rotating rod 10, the rod body of the rotating rod 10 is fixedly connected to the main gear 11, the rod body of the rotating rod 10 is fixedly connected to the worm gear 12, the outer walls of the fixed frame 8 are fixedly connected to the two fixed frames 8, the inner wall of the fixed plate 13 is rotatably connected to the worm 14, and the outer wall of the fixed plate 13 is fixedly connected to the servo motor 15. The servo motor 15 drives the worm 14 to rotate, so that the worm 14 can drive the rotating rod 10 to rotate through the worm gear 12, thereby causing the rotating rod 10 to drive the two sub-gears 9 to rotate through the main gear 11.

[0023] The outer wall of the alarm body 4 is fixedly connected to two clamping blocks 16, which facilitates fixing the alarm body 4 inside the clamping blocks 16, and the outer wall of the circular sleeve 3 is provided with two clamping components;

[0024] Specifically, refer to Figure 2 The positioning assembly includes a connecting plate 17, an insert rod 18, a retaining ring 19 and a spring 20. The outer wall of the circular sleeve 3 is fixedly connected to the two connecting plates 17, the plate body of the connecting plate 17 is slidably connected to the insert rod 18, the rod body of the insert rod 18 is fixedly connected to the retaining ring 19, the upper and lower ends of the spring 20 are fixedly connected to the retaining ring 19 and the outer wall of the connecting plate 17, the insert rod 18 is engaged with the card block 16, and the elastic force of the spring 20 can make the retaining ring 19 push the insert rod 18, inserting one side of the insert rod 18 into the interior of the card block 16, thereby fixing the alarm body 4 inside the circular sleeve 3.

[0025] Reference Figure 4The output end of the servo motor 15 is fixedly connected to the worm 14. The servo motor 15 can drive the worm 14 to rotate. The worm wheel 12 and the worm 14 are engaged with each other. The rotation of the worm 14 can drive the worm wheel 12 to rotate. The main gear 11 is engaged with the two sub-gears 9. The rotation of the main gear 11 can drive the sub-gears 9 on both sides to rotate.

[0026] Reference Figure 2 A synchronization rod 21 is provided at the upper end of the circular sleeve 3, which can fix one side of the multiple pull ropes 7 to improve the stability of the pull ropes 7 when pulling the circular sleeve 3 and the alarm body 4. The outer walls of the synchronization rod 21 are fixedly connected to the outer walls of the multiple pull ropes 7.

[0027] Reference Figure 2 The outer wall of the circular sleeve 3 is provided with two chute, the inner wall of the chute is slidably connected with the outer wall of the block 16, and the block 16 slides on the inner wall of the chute to facilitate the installation of the alarm body 4 inside the circular sleeve 3.

[0028] The implementation principle of the alarm device for fire detection in the embodiment of the present application is as follows: when in use, the servo motor 15 drives the worm 14 to rotate, so that the worm 14 drives the main gear 11 to rotate through the rotating rod 10, and the main gear 11 engages with the two sub-gears 9, so that the two rotating shafts 5 rotate through the sub-gears 9. When the rotating shaft 5 rotates, the lower end of the pull rope 7 can be driven to descend through the rope winding roller 6, so as to facilitate the height adjustment of the circular sleeve 3 and the internal alarm body 4, and then pull the insertion rod 18 so that one side of the insertion rod 18 can be disengaged from the inside of the block 16, and rotate the alarm body 4 so that the block 16 on the surface of the alarm body 4 slides inside the slide groove, so that the alarm body 4 can be conveniently removed from the inside of the circular sleeve 3, thereby improving the flexibility of disassembling the alarm body 4 during inspection or maintenance.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0030] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fire detection alarm device, comprising a mounting plate (1), characterized in that: The lower end of the mounting plate (1) is fixedly connected to a connecting shell (2), a circular sleeve (3) is provided at the lower end of the connecting shell (2), the inner wall of the circular sleeve (3) is slidably connected to an alarm body (4), the inner wall of the connecting shell (2) is rotatably connected to two rotating shafts (5), the outer wall of the rotating shaft (5) is fixedly connected to two rope winding rollers (6), the outer wall of the rope winding roller (6) is fixedly connected to a pull rope (7), the upper end of the circular sleeve (3) is fixedly connected to a plurality of pull ropes (7), one side of the two rotating shafts (5) is fixedly connected to a sub-gear (9), the outer wall of the connecting shell (2) is fixedly connected to a fixing frame (8), the inner wall of the fixing frame (8) is provided with a transmission assembly, the outer wall of the alarm body (4) is fixedly connected to two clamping blocks (16), and the outer wall of the circular sleeve (3) is provided with two clamping assemblies.

2. A fire detection alarm device according to claim 1, characterized in that: The transmission assembly comprises a rotating rod (10), a main gear (11), a worm wheel (12), a fixed plate (13), a worm (14) and a servo motor (15); the inner wall of the fixed frame (8) is rotatably connected to the rotating rod (10); the shaft of the rotating rod (10) is fixedly connected to the main gear (11); the shaft of the rotating rod (10) is fixedly connected to the worm wheel (12); the outer wall of the fixed frame (8) is fixedly connected to the two fixed frames (8); the inner wall of the fixed plate (13) is rotatably connected to the worm (14); and the outer wall of the fixed plate (13) is fixedly connected to the servo motor (15).

3. The fire detection alarm device according to claim 1, characterized in that: The locking assembly comprises a connecting plate (17), an inserting rod (18), a retaining ring (19) and a spring (20); the outer wall of the circular sleeve (3) is fixedly connected to the two connecting plates (17); the plate body of the connecting plate (17) is slidably connected to the inserting rod (18); the rod body of the inserting rod (18) is fixedly connected to the retaining ring (19); the upper end and the lower end of the spring (20) are fixedly connected to the retaining ring (19) and the outer wall of the connecting plate (17); the inserting rod (18) is engaged with the clamping block (16).

4. The fire detection alarm device according to claim 2, characterized in that: The output end of the servo motor (15) is fixedly connected to the worm (14), the worm wheel (12) and the worm (14) are meshed with each other, and the main gear (11) is meshed with the two sub-gears (9).

5. The fire detection alarm device according to claim 1, characterized in that: A synchronization rod (21) is provided at the upper end of the circular sleeve (3), and the outer wall of the synchronization rod (21) is fixedly connected to the outer walls of the plurality of pull ropes (7).

6. The fire detection alarm device according to claim 1, characterized in that: The outer wall of the circular sleeve (3) is provided with two sliding grooves, and the inner walls of the sliding grooves are slidably connected to the outer wall of the clamping block (16).

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