Smoke-sensing fire alarm structure

Abstract

A smoke-sensing fire alarm structure disclosed by the present invention comprises a mounting plate and a shell, mounting holes are formed in positions, close to four corners, of the mounting plate, the mounting plate is fixedly mounted on a wall body through bolts penetrating through the mounting holes, a flash assembly is arranged at the front end of the shell, and circulating pipes are fixedly connected to two ends in the shell. Ventilation plates are fixedly installed at the two ends of the circulation pipe, a draught fan is installed at the position, close to the other end, in the circulation pipe, a smoke detector is fixedly installed on the rear surface in the circulation pipe, installation structures are arranged on the front surface of the installation plate and the rear surface of the shell, and a dustproof structure is arranged in the circulation pipe. The mounting structure comprises a T-shaped sliding sleeve and a T-shaped sliding block. According to the smoke sensing fire alarm structure provided by the invention, the shell can be conveniently detached, the structure is simple and trouble-saving, the smoke sensor in the circulating pipe can be protected, and impurities such as a large amount of flying dust are prevented from drifting into the smoke sensor from the circulating pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarm, and particularly relates to a smoke fire alarm structure. Background Art

[0002] A smoke alarm, also known as a fire alarm, mainly senses changes in smoke to achieve a warning effect. The smoke alarm cannot prevent fires from occurring, but enables us to detect fires in the first place, thereby reducing some losses and avoiding personal injuries. "For example, an aspirating smoke fire alarm device with a publication number of CN222462152U includes a mounting plate. A housing is fixedly connected to the front surface of the mounting plate. A flashing component is arranged on the front surface of the housing. An air inlet is opened on the right side of the housing. A circulation pipe is fixedly connected to the inner wall of the housing. An air outlet is opened on the left side of the mounting plate. The flashing component includes a flashing cover. A rotating ring is fixedly connected to the back surface of the flashing cover. A circular hole is opened on the front surface of the housing. By setting a bell, specifically, when the rotating ring rotates, it will drive the knocking block to rotate together. When the knocking block contacts the bell, it will knock the bell, thereby generating vibration and sound. In this way, the bell can be continuously knocked and sounded. The knocking method can increase the volume, so as to better remind the surrounding people and can effectively play a warning role in areas with few people or noisy environments, improving safety", among which when installing this alarm device, it is fixed to the wall through multiple bolts, and it is rather troublesome and time-consuming to disassemble. Moreover, there is no dust-proof structure for the air inlet and air outlet. When encountering decoration work, a large amount of dust and other impurities may float into the smoke detector from the circulation pipe, causing damage to the internal electronic induction devices. Summary of the Invention

[0003] The main purpose of the present invention is to provide a smoke fire alarm structure, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A smoke fire alarm structure includes a mounting plate and a housing. Mounting holes are opened at positions near the four corners of the mounting plate. The mounting plate is fixedly installed on the wall through bolts passing through the mounting holes. A flashing component is arranged at the front end of the housing. Two ends inside the housing are fixedly connected with a circulation pipe. Ventilation plates are fixedly installed at both ends of the circulation pipe. A blower is installed near the other end inside the circulation pipe. A smoke detector is fixedly installed on the rear surface inside the circulation pipe. An installation structure is arranged on the front surface of the mounting plate and the rear surface of the housing. A dust-proof structure is arranged inside the circulation pipe. The installation structure includes a T-shaped sliding sleeve, a T-shaped sliding block, a rectangular groove, a wedge-shaped block, a circular sliding groove, a circular sliding block, a return spring, a circular clamping groove, a circular clamping rod, a circular rod, a rectangular block, a rectangular telescopic column, a first threaded rod, a first sliding groove, a first bearing, and a rotating block.

[0006] Preferably, a T-shaped slider is fixedly installed on the front surface of the mounting plate, a T-shaped sliding sleeve is fixedly installed on the rear surface of the housing, the T-shaped slider is slidably installed on the outer surface of the T-shaped sliding sleeve, a first sliding groove is formed inside the T-shaped slider, a first bearing is fixedly installed in the middle of the bottom surface of the first sliding groove, and a first threaded rod is installed on the first bearing.

[0007] Preferably, a rectangular telescopic column is threadedly installed on the outer surface of the first threaded rod, a rotating block is fixedly installed on the lower surface of the first threaded rod, a rectangular groove is formed on the upper surface of the first sliding groove, a rectangular block is slidably installed in the rectangular groove, the rectangular telescopic column is fixedly installed with the rectangular block on the upper surface, and a wedge-shaped block is fixedly installed on the upper surface of the rectangular block.

[0008] Preferably, circular sliding grooves are formed at both ends of the rectangular groove inside the T-shaped slider, circular sliders are slidably installed in the circular sliding grooves, a circular clamping rod is fixedly installed in the middle of one end surface of the circular slider, a circular rod is fixedly installed in the middle of the other end surface of the circular slider, a return spring is sleeved on the outer surface of the circular clamping rod at one end of the circular slider, and circular clamping grooves are formed on the surfaces of both ends inside the T-shaped sliding sleeve.

[0009] Preferably, the dust-proof structure includes a servo motor, a rotating rod, a second bearing, a third bearing, a first bevel gear, a second bevel gear, a connecting rod, a rectangular transmission groove, a rectangular sliding groove, a second threaded rod, a rectangular slider, a fourth bearing, a connecting column, and a sealing plate.

[0010] Preferably, a servo motor is fixedly installed in the middle of the lower surface of the flow pipe, the rotating part of the servo motor is fixedly connected with a rotating rod, a rectangular transmission groove is formed inside the flow pipe, a second bearing is fixedly installed in the middle of the lower surface of the rectangular transmission groove, the rotating rod is installed on the second bearing, and a first bevel gear is fixedly installed on the upper surface of the rotating rod.

[0011] Preferably, third bearings are fixedly installed in the middle of the surfaces of both ends of the rectangular transmission groove, a connecting rod is installed on the third bearings, a second bevel gear is fixedly installed near one end in the middle of the outer surface of the connecting rod, and the first bevel gear fixedly installed on the upper surface of the rotating rod meshes with the second bevel gear fixedly installed near one end in the middle of the outer surface of the connecting rod.

[0012] Preferably, second threaded rods are fixedly connected to both ends of the connecting rod. Rectangular chutes are provided near both ends of the inner bottom surface of the flow pipe. Fourth bearings are fixedly installed in the middle of both ends of the rectangular chute. Second threaded rods are installed on the fourth bearings. Rectangular sliders are threadedly installed on the outer surface of the second threaded rods. Connecting columns are fixedly installed on the upper surface of the rectangular sliders. Sealing plates are fixedly installed on the outer ends of the connecting columns in sequence. The sealing plates correspond to the ventilation openings on the ventilation plates one by one.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Through the provided installation structure, when disassembling the housing, rotate the rotating block to make the circular clamping rod disengage from the circular clamping grooves opened on the inner surfaces of both ends of the T-shaped sliding sleeve and retract into the circular chute. Then, pull the housing upward to drive the T-shaped sliding sleeve fixedly installed on the rear surface of the housing to move upward and disengage from the T-shaped slider, and the housing can be disassembled, which is simple and convenient.

[0015] 2. Through the provided dust-proof structure, when encountering decoration work, in order to prevent a large amount of dust and other impurities from drifting into the smoke detector from the flow pipe, start the servo motor to make the rectangular slider slide in the rectangular chute, drive the connecting column fixedly installed on the upper surface of the rectangular slider to move, and insert the sealing plate fixedly installed on the outer surface of the connecting column into the ventilation opening on the ventilation plate to protect the smoke detector inside the flow pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of a smoke fire alarm structure of the present invention;

[0017] Figure 2 is the partial sectional view of a smoke fire alarm structure of the present invention;

[0018] Figure 3 is the sectional view of a smoke fire alarm structure of the present invention;

[0019] Figure 4 is a smoke fire alarm structure of the present invention Figure 2 magnified view at A in;

[0020] Figure 5 is a smoke fire alarm structure of the present invention Figure 3 magnified view at B in;

[0021] Figure 6 is a smoke fire alarm structure of the present invention Figure 3 magnified view at C in.

[0022] In the figure: 1. mounting plate; 101. mounting hole; 2. housing; 201. flashing component; 3. circulation pipe; 301. ventilation plate; 302. fan; 4. smoke detector; 5. mounting structure; 501. T-shaped sliding sleeve; 502. T-shaped sliding block; 503. rectangular groove; 504. wedge block; 505. circular chute; 506. circular sliding block; 507. return spring; 508. circular clamping groove; 509. circular clamping rod; 510. circular rod; 511. rectangular block; 512. rectangular telescopic column; 513. first threaded rod; 514. first chute; 515. first bearing; 516. rotating block; 6. dust-proof structure; 601. servo motor; 602. rotating rod; 603. second bearing; 604. third bearing; 605. first bevel gear; 606. second bevel gear; 607. connecting rod; 608. rectangular transmission groove; 609. rectangular chute; 610. second threaded rod; 611. rectangular sliding block; 612. fourth bearing; 613. connecting column; 614. sealing plate. Detailed implementation manners

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0024] As Figures 1-6 shown, a smoke fire alarm structure includes a mounting plate 1 and a housing 2. Mounting holes 101 are provided at the positions near the four corners of the mounting plate 1. The mounting plate 1 is fixedly installed on the wall through bolts passing through the mounting holes 101. A flashing component 201 is provided at the front end of the housing 2. Circulation pipes 3 are fixedly connected to both ends inside the housing 2. Ventilation plates 301 are fixedly installed at both ends of the circulation pipes 3. A fan 302 is installed near the other end inside the circulation pipes 3. A smoke detector 4 is fixedly installed on the rear surface of the inner part of the circulation pipes 3. A mounting structure 5 is provided on the front surface of the mounting plate 1 and the rear surface of the housing 2. A dust-proof structure 6 is provided inside the circulation pipes 3. The mounting structure 5 includes a T-shaped sliding sleeve 501, a T-shaped sliding block 502, a rectangular groove 503, a wedge block 504, a circular chute 505, a circular sliding block 506, a return spring 507, a circular clamping groove 508, a circular clamping rod 509, a circular rod 510, a rectangular block 511, a rectangular telescopic column 512, a first threaded rod 513, a first chute 514, a first bearing 515, and a rotating block 516;

[0025] The front surface of the mounting plate 1 is fixedly installed with a T-shaped slider 502, and the rear surface of the housing 2 is fixedly installed with a T-shaped sliding sleeve 501. The outer surface of the T-shaped slider 502 is slidably installed with the T-shaped sliding sleeve 501. A first chute 514 is opened inside the T-shaped slider 502. In the middle of the bottom surface of the first chute 514, a first bearing 515 is fixedly installed, and a first threaded rod 513 is installed on the first bearing 515; a rectangular telescopic column 512 is threadedly installed on the outer surface of the first threaded rod 513. A rotating block 516 is fixedly installed on the lower surface of the first threaded rod 513. A rectangular groove 503 is opened on the upper surface of the first chute 514. A rectangular block 511 is slidably installed in the rectangular groove 503. The upper surface of the rectangular telescopic column 512 is fixedly installed with the rectangular block 511. A wedge-shaped block 504 is fixedly installed on the upper surface of the rectangular block 511; circular chutes 505 are opened at both ends of the rectangular groove 503 inside the T-shaped slider 502. Circular sliders 506 are slidably installed in the circular chutes 505. In the middle of one end surface of the circular slider 506, a circular clamping rod 509 is fixedly installed. In the middle of the other end surface of the circular slider 506, a circular rod 510 is fixedly installed. A return spring 507 is sleeved on the outer surface of the circular clamping rod 509 at one end of the circular slider 506. Circular clamping grooves 508 are opened on both ends of the inner surface of the T-shaped sliding sleeve 501. When disassembling the housing 2, the rotating block 516 can be rotated to make the circular clamping rod 509 disengage from the circular clamping grooves 508 opened on both ends of the inner surface of the T-shaped sliding sleeve 501 and retract into the circular chute 505. Then, the housing 2 is pulled upward to drive the T-shaped sliding sleeve 501 fixedly installed on the rear surface of the housing 2 to move upward and disengage from the T-shaped slider 502, and the housing 2 can be disassembled, which is simple and convenient; the dust-proof structure 6 includes a servo motor 601, a rotating rod 602, a second bearing 603, a third bearing 604, a first bevel gear 605, a second bevel gear 606, a connecting rod 607, a rectangular transmission groove 608, a rectangular chute 609, a second threaded rod 610, a rectangular slider 611, a fourth bearing 612, a connecting column 613, and a sealing plate 614; a servo motor 601 is fixedly installed in the middle of the lower surface of the flow pipe 3. The rotating part of the servo motor 601 is fixedly connected with a rotating rod 602. A rectangular transmission groove 608 is opened inside the flow pipe 3. In the middle of the lower surface of the rectangular transmission groove 608, a second bearing 603 is fixedly installed, and the rotating rod 602 is installed on the second bearing 603. A first bevel gear 605 is fixedly installed on the upper surface of the rotating rod 602; third bearings 604 are fixedly installed in the middle of both ends of the rectangular transmission groove 608. Connecting rods 607 are installed on the third bearings 604. A second bevel gear 606 is fixedly installed near one end in the middle of the outer surface of the connecting rod 607. The first bevel gear 605 fixedly installed on the upper surface of the rotating rod 602 meshes with the second bevel gear 606 fixedly installed near one end in the middle of the outer surface of the connecting rod 607;Both ends of the connecting rod 607 are fixedly connected with second threaded rods 610. Rectangular sliding grooves 609 are opened near both ends of the inner bottom surface of the flow pipe 3. In the middle of both ends of the surface of the rectangular sliding groove 609, fourth bearings 612 are fixedly installed. A second threaded rod 610 is installed on the fourth bearing 612. A rectangular slider 611 is threadedly installed on the outer surface of the second threaded rod 610. A connecting column 613 is fixedly installed on the upper surface of the rectangular slider 611. A sealing plate 614 is fixedly installed at the outer end of the connecting column 613 in sequence. The sealing plate 614 corresponds to the ventilation openings on the ventilation plate 301 one by one. When encountering decoration work, in order to prevent a large amount of dust and other impurities from floating into the smoke detector inside the flow pipe 3, the servo motor 601 is started to make the rectangular slider 611 slide in the rectangular sliding groove 609, driving the connecting column 613 fixedly installed on the upper surface of the rectangular slider 611 to move, so that the sealing plate 614 fixedly installed on the outer surface of the connecting column 613 is inserted into the ventilation openings on the ventilation plate 301 to protect the smoke detector 4 inside the flow pipe 3.;

[0026] It should be noted that the present invention is a smoke fire alarm structure. When it is necessary to disassemble the housing 2, rotate the rotating block 516, so that the rotating block 516 drives the first threaded rod 513 to rotate on the first bearing 515, thereby driving the rectangular telescopic column 512 threadedly installed on the outer surface of the first threaded rod 513 to slide downward in the first chute 514, so that the rectangular block 511 fixedly installed on the upper surface of the rectangular telescopic column 512 slides downward in the rectangular groove 503, driving the wedge-shaped block 504 to move downward. At this time, under the action of the return spring 507, the circular slider 506 is driven to slide in the circular chute 505, so that the circular locking rod 509 fixedly installed in the middle of one end surface of the circular slider 506 disengages from the circular card slots 508 opened on both end surfaces inside the T-shaped sliding sleeve 501 and retracts into the circular chute 505. Then, pull the housing 2 upward, driving the T-shaped sliding sleeve 501 fixedly installed on the rear surface of the housing 2 to move upward and disengage from the T-shaped slider 502, and the housing 2 can be disassembled. It is simple and convenient. When encountering decoration work, in order to prevent a large amount of dust and other impurities from drifting into the smoke detector inside through the circulation pipe 3, start the servo motor 601, so that the rotating part of the servo motor 601 drives the rotating rod 602 to rotate on the second bearing 603, so that the first umbrella-shaped gear 605 fixedly installed on the upper surface of the rotating rod 602 rotates. Because the first umbrella-shaped gear 605 fixedly installed on the upper surface of the rotating rod 602 meshes with the second umbrella-shaped gear 606 fixedly installed near one end in the middle of the outer surface of the connecting rod 607, the connecting rod 607 is driven to rotate on the third bearing 604, so that the second threaded rods 610 fixedly connected to both end surfaces of the connecting rod 607 rotate on the fourth bearing 612, so that the rectangular slider 611 threadedly installed on the outer surface of the second threaded rod 610 slides in the rectangular chute 609, so that the connecting column 613 fixedly installed on the upper surface of the rectangular slider 611 moves, so that the sealing plate 614 fixedly installed on the outer surface of the connecting column 613 is inserted into the ventilation openings on the ventilation plate 301 to protect the smoke detector 4 inside the circulation pipe 3.

[0027] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description in the specification are only used to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A smoke fire alarm structure, characterized in that: It includes a mounting plate (1) and a housing (2). Mounting holes (101) are provided near the four corners of the mounting plate (1). The mounting plate (1) is fixedly installed on the wall through bolts passing through the mounting holes (101). A flashing component (201) is provided at the front end of the housing (2). At both ends inside the housing (2), a circulation pipe (3) is fixedly connected. Ventilation plates (301) are fixedly installed at both ends of the circulation pipe (3). A blower (302) is installed near the other end inside the circulation pipe (3). A smoke detector (4) is fixedly installed on the rear surface inside the circulation pipe (3). An installation structure (5) is provided on the front surface of the mounting plate (1) and the rear surface of the housing (2). A dust-proof structure (6) is provided inside the circulation pipe (3). The installation structure (5) includes a T-shaped sliding sleeve (501), a T-shaped sliding block (502), a rectangular groove (503), a wedge block (504), a circular sliding groove (505), a circular sliding block (506), a return spring (507), a circular clamping groove (508), a circular clamping rod (509), a circular rod (510), a rectangular block (511), a rectangular telescopic column (512), a first threaded rod (513), a first sliding groove (514), a first bearing (515), and a rotating block (516).

2. The smoke fire alarm structure according to claim 1, characterized in that: A T-shaped sliding block (502) is fixedly installed on the front surface of the mounting plate (1), and a T-shaped sliding sleeve (501) is fixedly installed on the rear surface of the housing (2). The T-shaped sliding sleeve (501) is slidably installed on the outer surface of the T-shaped sliding block (502). A first sliding groove (514) is provided inside the T-shaped sliding block (502). A first bearing (515) is fixedly installed in the middle of the bottom surface of the first sliding groove (514), and a first threaded rod (513) is installed on the first bearing (515).

3. The smoke fire alarm structure according to claim 2, characterized in that: A rectangular telescopic column (512) is threadedly installed on the outer surface of the first threaded rod (513). A rotating block (516) is fixedly installed on the lower surface of the first threaded rod (513). A rectangular groove (503) is provided on the upper surface of the first sliding groove (514). A rectangular block (511) is slidably installed in the rectangular groove (503). The rectangular block (511) is fixedly installed on the upper surface of the rectangular telescopic column (512). A wedge block (504) is fixedly installed on the upper surface of the rectangular block (511).

4. The smoke fire alarm structure according to claim 3, characterized in that: Circular sliding grooves (505) are provided at both ends of the rectangular groove (503) inside the T-shaped sliding block (502). Circular sliding blocks (506) are slidably installed in the circular sliding grooves (505). A circular clamping rod (509) is fixedly installed in the middle of one end surface of the circular sliding block (506), and a circular rod (510) is fixedly installed in the middle of the other end surface of the circular sliding block (506). A return spring (507) is sleeved on the outer surface of the circular clamping rod (509) at one end of the circular sliding block (506). Circular clamping grooves (508) are provided on the surface at both ends inside the T-shaped sliding sleeve (501).

5. The smoke fire alarm structure according to claim 4, characterized in that: The dust-proof structure (6) includes a servo motor (601), a rotating rod (602), a second bearing (603), a third bearing (604), a first bevel gear (605), a second bevel gear (606), a connecting rod (607), a rectangular transmission groove (608), a rectangular sliding groove (609), a second threaded rod (610), a rectangular slider (611), a fourth bearing (612), a connecting column (613), and a sealing plate (614).

6. The smoke fire alarm structure according to claim 5, characterized in that: A servo motor (601) is fixedly installed in the middle of the lower surface of the flow pipe (3). The rotating part of the servo motor (601) is fixedly connected to a rotating rod (602). A rectangular transmission groove (608) is formed inside the flow pipe (3). A second bearing (603) is fixedly installed in the middle of the lower surface of the rectangular transmission groove (608). The rotating rod (602) is installed on the second bearing (603). A first bevel gear (605) is fixedly installed on the upper surface of the rotating rod (602).

7. The smoke fire alarm structure according to claim 6, wherein: Third bearings (604) are fixedly installed in the middle of both ends of the rectangular transmission groove (608). A connecting rod (607) is installed on the third bearings (604). A second bevel gear (606) is fixedly installed near one end in the middle of the outer surface of the connecting rod (607). The first bevel gear (605) fixedly installed on the upper surface of the rotating rod (602) meshes with the second bevel gear (606) fixedly installed near one end in the middle of the outer surface of the connecting rod (607).

8. The smoke fire alarm structure according to claim 7, characterized in that: Both ends of the connecting rod (607) are fixedly connected to second threaded rods (610). Rectangular sliding grooves (609) are formed near both ends of the inner bottom surface of the flow pipe (3). Fourth bearings (612) are fixedly installed in the middle of both ends of the rectangular sliding groove (609). The second threaded rods (610) are installed on the fourth bearings (612). Rectangular sliders (611) are threadedly installed on the outer surfaces of the second threaded rods (610). A connecting column (613) is fixedly installed on the upper surface of the rectangular slider (611). Sealing plates (614) are fixedly installed in sequence at the outer ends of the connecting column (613). The sealing plates (614) correspond to the ventilation openings on the ventilation plate (301) one by one.

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