Fire safety smoke detector

Abstract

The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting safety smoke detector, which comprises a smoke detector main body and a mounting seat positioned at the top of the smoke detector main body, a plurality of connecting claws are welded at the top of the smoke detector main body, and a transmission gear is movably mounted in the mounting seat. A transmission rod located on the peripheral side of the transmission gear is arranged in the mounting base, a transmission rack is arranged at the end, close to the transmission gear, of the transmission rod, a locking hook claw is arranged at the end, away from the transmission gear, of the transmission rod, and an adjusting rod is movably mounted on the mounting base. According to the fire safety smoke detector, the connecting cover plate is installed on the wall body in advance through the screws, the connecting hook claw on the smoke detector body is clamped into the inserting groove, the smoke detector body is pressed, the connecting hook claw extrudes the locking hook claw to move through the inclined face, finally, the connecting hook claw and the locking hook claw are in the clamped state, and installation of the smoke detector body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a fire safety smoke detector. Background Art

[0002] Smoke detectors can intelligently detect smoke generated during a fire and sound an alarm, reducing the chance of fire and improving the safety of living spaces.

[0003] Most existing fire safety smoke detectors are connected to the ceiling via multiple screws. This requires that each screw needs to be operated separately when disassembling the smoke detector, resulting in a large workload for the operator and making disassembly and assembly of the smoke detector inconvenient. In order to solve the above problems, the patent with application number CN202122936956.0 discloses a fire safety smoke detector, in which a fixing base is provided to cooperate with the smoke detector, and an installation rod, a mounting base, a fixing rod, a movable plate, a rotating rod, a ceiling, a fixing frame, a connecting spring, a positioning block, an extrusion spring, a movable rod, a mounting ring, a sliding hole, a columnar block and other structures are provided between the smoke detector and the fixing base. The rotating rod is rotated to adjust each structure, so that the smoke detector can be disassembled and assembled. Although it reduces the difficulty of disassembling and assembling the smoke detector to a certain extent, the rotating rod still needs to be rotated several times during disassembly and assembly, and there is still a certain degree of difficulty in operation. In addition, there are many structures provided between the smoke sensor and the fixing base, which makes the coordination between the structures more complicated, increases the manufacturing cost, and increases the probability of later damage. For this reason, we propose a fire safety smoke detector to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a fire safety smoke detector that solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fire safety smoke detector, comprising a smoke sensor body and a mounting base located on the top of the smoke sensor body, a plurality of connecting hooks welded on the top of the smoke sensor body, a transmission gear movably installed inside the mounting base, a transmission rod located on the circumferential side of the transmission gear is provided inside the mounting base, and a transmission rack is provided at one end of the transmission rod close to the transmission gear and a locking hook is provided at the end away from the transmission gear, an adjusting rod is movably installed on the mounting base, and an active rack is fixedly connected to one end of the adjusting rod close to the transmission gear, and a compression spring is movably sleeved on the outside of the adjusting rod.

[0006] Preferably, the number of the transmission rods is the same as the number of the connecting hooks, and the positions of the connecting hooks and the transmission rods correspond one to one. A positioning sleeve matching the transmission rod is fixedly installed inside the mounting seat, and the transmission rod is clamped inside the positioning sleeve.

[0007] Preferably, the connecting hook and the locking hook are provided with mutually matching inclined surfaces, and the connecting hook and the locking hook can be in a hooked state.

[0008] Preferably, the transmission rack is located on a side of the active rack away from the smoke sensor body, and both the transmission rack and the active rack are meshed with the outer edge of the transmission gear.

[0009] Preferably, the compression spring is located inside the mounting seat, and the outer fixing sleeve of the adjustment rod is provided with a retaining ring located outside the mounting seat.

[0010] Preferably, the cross-sectional shape of the adjusting rod is hexagonal, and the mounting seat is provided with a sleeve that cooperates with the adjusting rod.

[0011] Preferably, a connecting cover is fixedly mounted on the bottom end of the mounting seat by screws, and a plurality of plug-in slots are provided on the connecting cover, and the positions of the plug-in slots correspond one-to-one to the locking hooks.

[0012] The utility model provides a fire safety smoke detector, which has the following beneficial effects:

[0013] 1. The fire safety smoke detector is pre-installed on the wall by screws to connect the cover plate, and the connecting hook on the smoke detector body is inserted into the plug-in slot. The smoke detector body is pressed, and the connecting hook is squeezed by the inclined surface to move the locking hook, and finally the connecting hook and the locking hook are in a clamping state, thereby realizing the installation of the smoke detector body. The active rack is pulled to move by the adjusting rod, thereby driving the transmission gear to rotate, driving multiple transmission rods and locking hooks to move outward, releasing the restriction of the locking hook on the connecting hook, thereby realizing the disassembly of the smoke detector body. The overall disassembly and assembly of the smoke detector body is simple, which reduces the difficulty of operation. At the same time, the overall structure is relatively simple, which reduces the manufacturing cost and the probability of subsequent damage.

[0014] 2. This fire safety smoke detector is driven by an active rack, a transmission rack, and a transmission rod. Multiple locking hooks can be controlled in a linkage manner, reducing the difficulty of operation. The smoke detector body is locked by the cooperation of multiple locking hooks and multiple connecting hooks, ensuring the firmness of the smoke detector body after installation. At the same time, the active rack is exerted with elastic force by a compression spring, so that the transmission gear always has a tendency to drive the transmission rod and the locking hook to move toward the middle, thereby ensuring the stability of the engagement between the locking hook and the connecting hook, further improving the firmness of the smoke detector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model after overall assembly;

[0016] Figure 2 This is a schematic structural diagram of the top of the smoke detector body of the utility model;

[0017] Figure 3 This is a structural diagram of the connecting cover plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the mounting base of the utility model;

[0019] Figure 5 This is a structural diagram of the connection between the smoke detector body and the mounting base of the utility model.

[0020] In the figure: 1. Smoke detector body; 2. Mounting base; 3. Connecting cover; 4. Connecting hook; 5. Transmission gear; 6. Positioning sleeve; 7. Transmission rod; 8. Locking hook; 9. Transmission rack; 10. Adjustment rod; 11. Active rack; 12. Compression spring; 13. Plug slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1 、 2 4. The utility model provides a technical solution: a fire safety smoke detector, comprising a smoke detector body 1 and a mounting base 2 located at the top of the smoke detector body 1, a plurality of connecting hooks 4 are welded on the top of the smoke detector body 1, and the smoke detector body 1 is locked by cooperating with a plurality of connecting hooks 4 and a plurality of locking hooks 8 to ensure the firmness of the smoke detector body 1 after installation, a transmission gear 5 is movably installed inside the mounting base 2, and a transmission rod 7 is provided inside the mounting base 2 located on the side of the transmission gear 5. The transmission is driven by the transmission rod 7, ensuring that the transmission gear 5 can drive the locking hook 8 to move through the transmission rack 9 to achieve the adjustment of the position of the locking hook 8, and the transmission rod 7 is provided with a transmission rack 9 on the end close to the transmission gear 5 and a lock on the end away from the transmission gear 5. The fixed hook 8 and the connecting hook 4 are moved outward by squeezing the locking hook 8 by the inclined surface, and the connecting hook 4 and the locking hook 8 are finally clamped together during continuous pressing, so that the smoke sensor body 1 can be quickly installed. An adjusting rod 10 is movably installed on the mounting base 2, and the end of the adjusting rod 10 close to the transmission gear 5 is fixedly connected to the active rack 11. When the adjusting rod 10 drives the transmission gear 5 to rotate through the active rack 11, the transmission gear 5 can drive the transmission rack 9 to move, thereby adjusting the position of the transmission rod 7 and the locking hook 8. A compression spring 12 is provided on the outer movable sleeve of the adjusting rod 10, which applies elastic force to the active rack 11 and the adjusting rod 10 through the compression spring 12, so that the transmission gear 5 always has a tendency to drive the transmission rod 7 and the locking hook 8 to move toward the middle.

[0023] See also Figure 2 、 4 The number of transmission rods 7 is the same as the number of connecting hooks 4, and the positions of connecting hooks 4 and transmission rods 7 correspond one to one, ensuring that multiple connecting hooks 4 can correspond to the locking hooks 8 at the ends of the transmission rods 7 and achieve a snap connection, completing the installation of the smoke sensor body 1. The interior of the mounting base 2 is fixedly installed with a positioning sleeve 6 that matches the transmission rod 7. The transmission rod 7 is snapped into the interior of the positioning sleeve 6. The positioning sleeve 6 restricts the transmission rod 7, ensuring the stability of the transmission rod 7 when driving the locking hook 8 to move, so that the locking hook 8 can be accurately docked with the connecting hook 4. Please refer to Figure 4 、 5 , the connecting hook 4 and the locking hook 8 are provided with mutually cooperating inclined surfaces. By setting the inclined surfaces, it is ensured that the connecting hook 4 can complete the hooking with the locking hook 8 through the inclined surfaces, and the connecting hook 4 and the locking hook 8 can be in a hooked state. The multiple connecting hooks 4 are correspondingly inserted into the multiple plug-in slots 13, and the smoke sensor body 1 is pressed. The connecting hook 4 squeezes the locking hook 8 outward through the inclined surface, and the connecting hook 4 and the locking hook 8 are finally clamped together during continuous pressing, which can realize the rapid installation of the smoke sensor body 1. The transmission rack 9 is located on the side of the active rack 11 away from the smoke sensor body 1. The transmission rack 9 and the active rack 11 are engaged with the outer edge of the transmission gear 5. When the adjusting rod 10 drives the transmission gear 5 to rotate through the active rack 11, the transmission gear 5 can drive the transmission rack 9 to move, thereby realizing the adjustment of the position of the transmission rod 7 and the locking hook 8.

[0024] See also Figure 4 、 5 The compression spring 12 is located inside the mounting seat 2. After the smoke sensor body 1 is installed, the compression spring 12 applies elastic force to the active rack 11 and the adjusting rod 10, so that the transmission gear 5 always has a tendency to drive the transmission rod 7 and the locking hook 8 to move toward the middle. The external fixing sleeve of the adjusting rod 10 is provided with a retaining ring located outside the mounting seat 2, which restricts the adjusting rod 10 by the retaining ring to prevent the adjusting rod 10 from transitioning under the elastic force of the compression spring 12, thereby limiting the initial position of the active rack 11, the transmission gear 5, the transmission rod 7 and the locking hook 8. The cross-sectional shape of the adjusting rod 10 is hexagonal, which prevents the adjusting rod 10 from rotating along the axis, thereby ensuring that the active rack 11 can accurately match the transmission gear 5. A sleeve that cooperates with the adjusting rod 10 is provided on the mounting seat 2, which restricts the adjusting rod 10 by the sleeve to ensure the stability of the adjusting rod 10 when it moves along the axial direction.

[0025] See also Figure 3The bottom end of the mounting base 2 is fixed with a connecting cover 3 by screws, and a plurality of plug-in slots 13 are opened on the connecting cover 3. The positions of the plug-in slots 13 correspond one-to-one with the locking hooks 8. When installing the smoke sensor body 1, the connecting hooks 4 can be inserted into the inside of the mounting base 2 along the plug-in slots 13 to realize the connection between the connecting hooks 4 and the locking hooks 8.

[0026] In summary, when using the fire safety smoke detector, the mounting base 2 is pre-installed on the wall by bolts. When installing the smoke detector body 1, the multiple connecting hooks 4 on the top of the smoke detector body 1 are correspondingly inserted into the multiple plug-in slots 13, and the smoke detector body 1 is pressed. The connecting hooks 4 move outward by squeezing the locking hooks 8 by the inclined surface, and the connecting hooks 4 and the locking hooks 8 are finally connected together during continuous pressing. The multiple connecting hooks 4 are locked by the multiple locking hooks 8 to complete the installation of the smoke detector body 1; when disassembling the smoke detector body 1, the active rack 11 is pulled outward by the adjusting rod 10, driving the transmission gear 5 to rotate counterclockwise, thereby driving the multiple transmission racks 9 to move away from the center, driving the multiple transmission rods 7 and the locking hooks 8 to move away from the center, releasing the lock of the locking hooks 8 on the connecting hooks 4, and the smoke detector body 1 can be disassembled.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire safety smoke detector, comprising a smoke detector body (1) and a mounting base (2) located on the top of the smoke detector body (1), characterized in that: A plurality of connecting hooks (4) are welded to the top of the smoke sensor body (1), a transmission gear (5) is movably mounted inside the mounting seat (2), a transmission rod (7) is provided inside the mounting seat (2) and is located on the circumferential side of the transmission gear (5), and a transmission rack (9) is provided at one end of the transmission rod (7) close to the transmission gear (5), and a locking hook (8) is provided at one end away from the transmission gear (5), an adjusting rod (10) is movably mounted on the mounting seat (2), and an active rack (11) is fixedly connected to one end of the adjusting rod (10) close to the transmission gear (5), and a compression spring (12) is movably sleeved on the outside of the adjusting rod (10).

2. A fire safety smoke detector according to claim 1, characterized in that: The number of the transmission rods (7) is the same as the number of the connecting hooks (4), and the positions of the connecting hooks (4) and the transmission rods (7) correspond one to one. A positioning sleeve (6) matching the transmission rod (7) is fixedly installed inside the mounting seat (2), and the transmission rod (7) is clamped inside the positioning sleeve (6).

3. A fire safety smoke detector according to claim 2, characterized in that: The connecting hook (4) and the locking hook (8) are provided with mutually matching inclined surfaces, and the connecting hook (4) and the locking hook (8) can be in a hooked state.

4. A fire safety smoke detector according to claim 3, characterized in that: The transmission rack (9) is located on a side of the active rack (11) away from the smoke sensor body (1), and the transmission rack (9) and the active rack (11) are both meshed with the outer edge of the transmission gear (5).

5. A fire safety smoke detector according to claim 4, characterized in that: The compression spring (12) is located inside the mounting seat (2), and the outer fixing sleeve of the adjustment rod (10) is provided with a retaining ring located outside the mounting seat (2).

6. The fire safety smoke detector according to claim 5, characterized in that: The cross-sectional shape of the adjusting rod (10) is hexagonal, and the mounting seat (2) is provided with a sleeve that matches the adjusting rod (10).

7. The fire safety smoke detector according to claim 6, characterized in that: A connecting cover plate (3) is fixedly mounted on the bottom end of the mounting seat (2) by screws, and a plurality of plug-in slots (13) are provided on the connecting cover plate (3), and the positions of the plug-in slots (13) correspond one-to-one to the locking hooks (8).

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