Smoke alarm convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of disassembly and assembly of smoke alarms, and particularly discloses a smoke alarm convenient to disassemble and assemble, which comprises a smoke alarm body and a mounting seat. A sliding groove is formed in the mounting base, a sleeve is arranged on the mounting base, a telescopic spring and a sleeve shaft are arranged in the sleeve, an abutting plate is arranged on the sleeve shaft, the telescopic spring is connected with the sleeve shaft, a limiting plate, a sliding block and a connecting spring are arranged in the sliding groove, a clamping groove is formed in the sliding block, and the clamping groove is connected with the connecting spring. The limiting plate is connected with the sliding block and the connecting spring, a rotating shaft is arranged on the mounting seat, a pull rope is wound on the rotating shaft, the pull rope is connected with the sliding block, a mounting cylinder is arranged on the smoke alarm body, a clamping column is arranged in the mounting cylinder, the clamping column abuts against the abutting plate and the clamping groove, and the limiting plate is connected with the sliding block and the connecting spring. According to the utility model, the problem in the prior art that the smoke alarm installed by adopting an expansion screw is inconvenient to disassemble is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to smoke alarm dismounting technical field, especially a kind of smoke alarm convenient to dismount. BACKGROUND

[0002] Smoke alarm is actually the alias of smoke alarm, and smoke alarm is used to prevent fire by monitoring the concentration of smoke, which is generally divided into two types: combustible gas alarm and non-combustible gas alarm. Smoke alarm is generally composed of two parts: sensing sensor for detecting smoke and loud electronic speaker.

[0003] Most of the smoke alarms in the prior art are directly installed on the wall by expansion screws. When the smoke alarm is damaged or reaches the end of its service life and needs to be replaced, the mounting bracket and the expansion screws must be removed together, which makes it inconvenient to dismount the smoke alarm. UTILITY MODEL CONTENTS

[0004] To solve the technical problem of the above-mentioned smoke alarm installed by expansion screws, the utility model provides a smoke alarm convenient to dismount.

[0005] The utility model solves the technical problem by adopting the following technical scheme:

[0006] A smoke alarm convenient to dismount, comprising a smoke alarm body and a mounting seat, a sliding groove is formed in the mounting seat, and a sleeve is fixedly arranged on the mounting seat, an extension spring is fixedly arranged in the sleeve, and a sleeve shaft is slidingly arranged in the sleeve, an abutting plate is fixedly arranged on the sleeve shaft, and the extension spring is fixedly connected to the sleeve shaft, a limiting plate and a sliding block are slidingly arranged in the sliding groove, and a connecting spring is fixedly arranged in the sliding groove, a clamping groove is formed in the sliding block, the limiting plate is fixedly connected to the sliding block and the connecting spring, a rotating shaft is rotatably arranged on the mounting seat, a pull rope is wound around the rotating shaft, and the pull rope is fixedly connected to the sliding block, an installation cylinder is fixedly arranged on the smoke alarm body, a clamping column is fixedly arranged in the installation cylinder, and the clamping column abuts against the abutting plate and the clamping groove.

[0007] Further, an installation bracket is slidingly arranged on the mounting seat.

[0008] Further, an installation shaft and a driven bevel gear are rotatably arranged on the installation bracket, a driving bevel gear is fixedly arranged on the installation shaft, the driven bevel gear meshes with the driving bevel gear, a twisting block is fixedly arranged, a twisting groove is formed in the rotating shaft, and the twisting block is inserted into the twisting groove.

[0009] Further, the twisting block is in the shape of a cuboid.

[0010] Further, the rotating shaft is fixedly provided with a friction block, the mounting seat is provided with a rotating hole, the rotating shaft is arranged in the rotating hole, and the friction block abuts against the rotating hole.

[0011] Further, the mounting frame is provided with a plurality of mounting holes.

[0012] The utility model discloses beneficial effect has:

[0013] 1, the utility model discloses a sleeve, sleeve shaft, telescopic spring, sliding block, limit board, connecting spring, drawstring, abutment plate, rotating shaft and card post can realize the convenient disassembly and installation of smoke alarm body, the disassembly of the smoke alarm of adopting expansion screw installation is inconveniently solved the problem of problem;

[0014] 2, the utility model discloses mounting seat sliding connection mounting frame can realize the movement after the installation of smoke alarm body, thereby increased the monitoring range of smoke alarm body. DRAWINGS

[0015] Figure 1 It is the structure diagram of a smoke alarm convenient to dismount of the utility model;

[0016] Figure 2 It is Figure 1 It is the sectional view of mounting seat and mounting frame in the utility model;

[0017] Figure 3 It is Figure 2 It is the local enlarged view of A part in the utility model;

[0018] Figure 4 It is Figure 2 It is the structure diagram of rotating shaft in the utility model;

[0019] Figure 5 It is Figure 3 It is the structure diagram of sliding block and limit board in the utility model;

[0020] Wherein, 1 - mounting frame, 2 - smoke alarm body, 3 - mounting seat, 4 - rotating shaft, 5 - sliding slot, 6 - sliding block, 7 - connecting spring, 8 - sleeve, 9 - telescopic spring, 10 - sleeve shaft, 11 - abutment plate, 12 - card slot, 13 - branch slot, 14 - drawstring, 15 - installation cylinder, 16 - card column, 17 - mounting shaft, 18 - driving bevel gear, 19 - driven bevel gear, 20 - twist block, 21 - twist groove, 22 - friction block, 23 - limit board, 24 - mounting hole. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the utility model, the utility model will be further described in detail in conjunction with the drawings and examples below, and the examples are only used to explain the utility model and do not constitute the limitation of the protection scope of the utility model.

[0022] Example:

[0023] The specific implementation process of this utility model: A smoke alarm that is easy to assemble and disassemble, such as... Figures 1-5 As shown, the device includes a smoke alarm body 2 and a mounting base 3. The mounting base 3 has a sliding groove 5 and a fixed sleeve 8. A telescopic spring 9 is fixedly installed inside the sleeve 8, and a slidable shaft 10 is mounted on it. An abutment plate 11 is fixedly installed on the shaft 10. The telescopic spring 9 is fixedly connected to the shaft 10. A limit plate 23 and a slider 6 are slidably installed inside the sliding groove 5, and a connecting spring 7 is fixedly installed. A slot 12 is provided on the slider 6. The limit plate 23 is fixedly connected to the slider 6 and the connecting spring 7. A rotating shaft 4 is rotatably installed on the mounting base 3. A pull rope 14 is wound around the rotating shaft 4 and fixedly connected to the slider 6. An installation cylinder 15 is fixedly installed on the smoke alarm body 2. A locking post 16 is fixedly installed inside the installation cylinder 15, and the locking post 16 abuts against the abutment plate 11 and the slot 12.

[0024] When installing the smoke alarm body 2, first move the smoke alarm body 2 so that the locking post 16 pushes the abutment plate 11. The telescopic spring 9 will be compressed by the abutment plate 11, and the connecting spring 7 will push the limit plate 23 and the slider 6 to move. The locking post 16 will extend into the locking groove 12 and abut against the locking groove 12 and the abutment plate 11. When disassembling the smoke alarm body 2, first rotate the rotating shaft 4. The rotating shaft 4 will wind the pull rope 14, and the pull rope 14 will pull the slider 6 into the sliding groove 5. The limit plate 23 will compress the connecting spring 7, and the locking groove 12 will move away from the locking post 5. The column 16 and the telescopic spring 9 will push the sleeve shaft 10 and the abutment plate 11. The abutment plate 11 will push the locking column 16 away from the mounting base 3, so that the smoke alarm body 2 can be removed from the mounting base 3. When the smoke alarm body 2 is not installed, the abutment plate 11 will abut against the slider 6. The slider 6 is provided with a slope, so that when the locking column 16 pushes the abutment plate 11 close to the sleeve 8, the abutment plate 11 will no longer abut against the slider 6, so that the locking column 16 can extend into the locking groove 12. The rotating shaft 4 is provided with a wire dividing groove 13, and the pull rope 14 is wound in the wire dividing groove 13.

[0025] like Figure 1 and Figure 2 As shown, a mounting bracket 1 is slidably mounted on the mounting base 3.

[0026] Mounting bracket 1 is fixedly installed on the wall. When mounting base 3 is moved, mounting base 3 will slide on mounting bracket 1, and the smoke alarm body 2 will move together with mounting base 3.

[0027] like Figure 1 , Figure 2 as well as Figure 4As shown, the mounting bracket 1 is rotatably provided with a mounting shaft 17 and a driven bevel gear 19. The mounting shaft 17 is fixedly provided with a driving bevel gear 18. The driven bevel gear 19 meshes with the driving bevel gear 18 and is fixedly provided with a turning block 20. The rotating shaft 4 is provided with a turning groove 21, and the turning block 20 is inserted into the turning groove 21.

[0028] When rotating the shaft 4, first move the mounting base 3 so that the screwing block 20 can enter the screwing groove 21. Then rotate the mounting shaft 17. The mounting shaft 17 will drive the driving bevel gear 18 to rotate. The driving bevel gear 18 will drive the driven bevel gear 19 to rotate. The driven bevel gear 19 will drive the screwing block 20 to rotate. The screwing block 20 will drive the shaft 4 to rotate together, so that the shaft 4 can wind the pull rope 14. When the connecting spring 7 pushes the limit plate 23 and the slider 6 to move, the slider 6 will pull the pull rope 14. The pull rope 14 will be released and the shaft 4 will rotate. After the locking post 16 extends into the locking groove 12, the slider 6 and the shaft 4 will stop moving. At this time, the side opening of the screwing groove 21 will be aligned with the screwing block 20, so that the screwing block 20 can enter the screwing groove 21 from the side opening of the screwing groove 21.

[0029] like Figure 2 As shown, the twisting block 20 is rectangular in shape.

[0030] The rotating block 20 is rectangular, which makes it easy for the rotating block 20 to rotate together with the rotating shaft 4. The rotating groove 21 is adapted to the rotating block 20.

[0031] like Figures 2-4 As shown, a friction block 22 is fixedly installed on the rotating shaft 4, and a rotating hole is opened on the mounting base 3. The rotating shaft 4 is installed in the rotating hole, and the friction block 22 abuts against the rotating hole.

[0032] To prevent the pull rope 14 from causing the rotating shaft 4 to rotate at a large angle when the slider 6 brings it close to the locking post 16, several friction blocks 22 are set on the rotating shaft 4 to abut against the rotating hole, so that the pull rope 14 will only slowly drive the rotating shaft 4 to rotate.

[0033] like Figure 1 As shown, the mounting bracket 1 has several mounting holes 24.

[0034] Several mounting holes 24 allow expansion screws to pass through and the mounting bracket 1 to be installed on the wall.

[0035] The above embodiments should not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A smoke alarm which is easy to disassemble, characterized in that: The smoke alarm body and the mounting seat are included. A sliding slot is formed on the mounting seat, and a sleeve is fixedly arranged on the mounting seat, a telescopic spring is fixedly arranged in the sleeve, and a sleeve shaft is slidingly arranged in the sleeve, an abutting plate is fixedly arranged on the sleeve shaft, and the telescopic spring is fixedly connected with the sleeve shaft, a limiting plate and a sliding block are slidingly arranged in the sliding slot, a connecting spring is fixedly arranged in the sliding slot, a clamping slot is formed on the sliding block, the limiting plate is fixedly connected with the sliding block and the connecting spring, a rotating shaft is rotatably arranged on the mounting seat, a pull rope is wound on the rotating shaft, and the pull rope is fixedly connected with the sliding block, an installation cylinder is fixedly arranged on the smoke alarm body, a clamping column is fixedly arranged in the installation cylinder, and the clamping column abuts against the abutting plate and the clamping slot.

2. The smoke alarm of claim 1, wherein: A mounting frame is slidingly arranged on the mounting seat.

3. The smoke alarm of claim 2, wherein: A mounting shaft and a driven bevel gear are rotatably arranged on the mounting frame, a driving bevel gear is fixedly arranged on the mounting shaft, the driven bevel gear meshes with the driving bevel gear, and a twisting block is fixedly arranged on the driven bevel gear, a twisting slot is formed on the rotating shaft, and the twisting block is inserted into the twisting slot.

4. The smoke alarm of claim 3, wherein: The twisting block is in the shape of a cuboid.

5. The smoke alarm of claim 1, wherein: A friction block is fixedly arranged on the rotating shaft, a rotating hole is formed on the mounting seat, the rotating shaft is arranged in the rotating hole, and the friction block abuts against the rotating hole.

6. The smoke alarm of claim 2, wherein: A plurality of mounting holes are formed on the mounting frame.

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