A smoke detector for fire protection engineering

Abstract

This utility model relates to the field of fire protection engineering technology, specifically a smoke detector for fire protection engineering. It includes a smoke detector body, with four mounting rods arranged in a circular array around its center at the upper end of the body. A guide mechanism is provided between the lower end of each of the four mounting rods and the upper end of the smoke detector body. Limiting blocks are fixedly connected to the outer walls of the four mounting rods near their upper edges. A fixing cylinder is fixedly connected to the middle of the upper end of the smoke detector body. Four support cylinders are fixedly connected to the outer wall of the fixing cylinder in a circular array around its center. Connecting rods are slidably inserted into the interior of each of the four support cylinders. This single-point smoke detector can be fixed using four mounting rods that can simultaneously retract and expand, and using the grid pattern of a suspended ceiling, making fixing simple and quick. Furthermore, due to the adjustability of the four mounting rods, it can also be adapted to different specifications of suspended ceilings with multiple square grids, offering good applicability.

Description

Technical Field

[0001] This utility model relates to the field of fire protection engineering technology, specifically a smoke detector for fire protection engineering. Background Technology

[0002] Smoke detectors are an important component of fire protection engineering. They are fire alarm devices that detect smoke, primarily functioning to detect smoke in its early stages and issue an alarm signal. Single-point smoke detectors are also available and are widely used in various locations, such as residences, offices, schools, hospitals, hotels, and other densely populated areas. They are relatively inexpensive and easy to install.

[0003] Single-point smoke detectors are typically installed using screws or clips on the ceiling of a room or corridor. However, some rooms have ceilings with multi-grid designs. When installing single-point smoke detectors on such ceilings, the dense horizontal and vertical bars, which are often thin, make it difficult to thread screws through, hindering the screw installation. Furthermore, existing clip-on installation methods are incompatible with multi-grid ceilings for quick installation, causing inconvenience and complicating the installation process. Therefore, we propose a smoke detector for fire protection engineering. Utility Model Content

[0004] The purpose of this invention is to provide a smoke detector for fire protection engineering to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a smoke detector for fire protection engineering, comprising a smoke detector body, four mounting rods arranged in a circular array around the center of the upper end of the smoke detector body, a guide mechanism provided between the lower end of each of the four mounting rods and the upper end of the smoke detector body, a limit block fixedly connected to the outer wall of each of the four mounting rods near the upper edge, a fixed cylinder fixedly connected to the middle of the upper end of the smoke detector body, four support cylinders fixedly connected in a circular array around the center of the outer wall of the fixed cylinder, a connecting rod slidably inserted inside each of the four support cylinders, the end of each of the four connecting rods away from the fixed cylinder being fixedly connected to the outer wall of each of the four mounting rods, an elastic element provided between each of the four support cylinders and the four connecting rods, and a synchronous adjustment mechanism provided between the end of each of the four connecting rods near the fixed cylinder, the support cylinder, and the smoke detector body.

[0006] Preferably, the guiding mechanism includes a T-shaped groove and a T-shaped slider. The T-shaped groove is formed at the upper end of the smoke sensor body corresponding to the mounting rod, and the T-shaped slider is fixedly connected to the lower end of the mounting rod. The T-shaped slider and the T-shaped groove are in sliding engagement.

[0007] Preferably, the elastic element includes a spring, one end of which is fixedly connected to the end of the connecting rod near the fixed cylinder, and the other end of which is fixedly connected to the inner wall of the support cylinder near the fixed cylinder.

[0008] Preferably, the synchronization adjustment mechanism includes four connecting ropes. One end of each of the four connecting ropes is fixedly connected to the end of each of the four connecting rods near the fixed cylinder. The other end of each of the four connecting ropes is movably inserted through the end of each of the four support cylinders near the fixed cylinder. All four connecting ropes are slidably inserted into the inner wall of the fixed cylinder. The other end of each of the four connecting ropes is fixedly connected to a pull rope. The top end of the pull rope is located inside the fixed cylinder, and the lower end of the pull rope is movably inserted through the lower center of the smoke sensor body. The lower end of the pull rope is provided with a pulling element.

[0009] Preferably, the pulling member includes a pull ring, which is fixedly connected to the bottom end of the pull rope, and the pull ring is located near the lower center of the smoke sensor body.

[0010] Preferably, the limiting block and the mounting rod are integrally formed.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Through the cooperation of the mounting rod, guide mechanism, limit block, fixing cylinder, support cylinder, connecting rod, elastic element and synchronous adjustment mechanism, this single-point smoke detector can be fixed by four mounting rods that can retract and expand synchronously and by the grid of the grid ceiling, and the fixing is simple and quick.

[0013] 2. At the same time, due to the adjustability of the four mounting rods, it can also be adapted to the installation of grid ceilings with multiple squares of different specifications, making it highly adaptable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the support cylinder of this utility model;

[0016] Figure 3 This is a cross-sectional view of the support cylinder and the fixing cylinder of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 5 This is a bottom view of the present invention;

[0019] Figure 6 This is a schematic diagram of the synchronous adjustment mechanism and the four T-shaped sliders of this utility model;

[0020] Figure 7 This is a schematic diagram of the installation of this utility model.

[0021] The components represented by each number in the attached diagram are listed below: 1. Smoke detector body; 2. Connecting rod; 3. Limiting block; 4. T-shaped slide; 5. Support cylinder; 6. Fixing cylinder; 7. Mounting rod; 8. Spring; 9. Connecting rope; 10. Pull ring; 11. T-shaped slider; 12. Pull rope. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution: such as Figure 1 - Figure 7 The smoke detector shown includes a smoke detector body 1. Four mounting rods 7 are arranged in a circular array around the center of the upper end of the smoke detector body 1. A guide mechanism is provided between the lower end of the four mounting rods 7 and the upper end of the smoke detector body 1. Limiting blocks 3 are fixedly connected to the outer walls of the four mounting rods 7 near the upper edge. A fixing cylinder 6 is fixedly connected to the middle of the upper end of the smoke detector body 1. Four support cylinders 5 are fixedly connected to the outer wall of the fixing cylinder 6 in a circular array around its center. Connecting rods 2 are slidably inserted into the interior of each of the four support cylinders 5. The ends of the four connecting rods 2 away from the fixing cylinder 6 are fixedly connected to the outer walls of the four mounting rods 7 respectively. Elastic elements are provided between the four support cylinders 5 and the four connecting rods 2 respectively. A synchronous adjustment mechanism is provided between the ends of the four connecting rods 2 near the fixing cylinder 6, the support cylinders 5, and the smoke detector body 1.

[0024] The guiding mechanism includes a T-shaped groove 4 and a T-shaped slider 11. The T-shaped groove 4 is opened at the upper end of the smoke sensor body 1 corresponding to the mounting rod 7. The T-shaped slider 11 is fixedly connected to the lower end of the mounting rod 7, and the T-shaped slider 11 and the T-shaped groove 4 are in sliding engagement.

[0025] The elastic element includes a spring 8, one end of which is fixedly connected to the end of the connecting rod 2 near the fixed cylinder 6, and the other end of the spring 8 is fixedly connected to the inner wall of the support cylinder 5 near the fixed cylinder 6.

[0026] The synchronous adjustment mechanism includes four connecting ropes 9. One end of each of the four connecting ropes 9 is fixedly connected to one end of each of the four connecting rods 2 near the fixed cylinder 6. The other ends of the four connecting ropes 9 are movably inserted through one end of each of the four support cylinders 5 near the fixed cylinder 6. All four connecting ropes 9 are slidably inserted into the inner wall of the fixed cylinder 6. The other ends of the four connecting ropes 9 are fixedly connected to a pull rope 12. The top end of the pull rope 12 is located inside the fixed cylinder 6, and the lower end of the pull rope 12 is movably inserted through the center of the lower end of the smoke sensor body 1. The lower end of the pull rope 12 is provided with a pulling element.

[0027] The pull component includes a pull ring 10, which is fixedly connected to the bottom end of the pull rope 12. The pull ring 10 is located near the center of the lower end of the smoke detector body 1.

[0028] The limiting block 3 and the mounting rod 7 are integrally formed; specifically, the limiting block 3 and the mounting rod 7 have good stability.

[0029] Working principle: When the smoke detector body 1 is installed on a grid ceiling with multiple squares, one hand picks up the smoke detector body 1, and the other hand pulls down the pull ring 10. The pull ring 10 will drive the pull rope 12 to slide downward inside the smoke detector body 1. The pull rope 12 will drive the four connecting ropes 9 to retract and move synchronously into the fixed cylinder 6 within the inner wall of the fixed cylinder 6. Each connecting rope 9 will drive its connected connecting rod 2 to slide towards the fixed cylinder 6 within its corresponding support cylinder 5. Each connecting rod 2 will drive its connected mounting rod 7 to move towards the fixed cylinder 6, and each connecting rod 2 will also compress the spring 8 connected to the fixed cylinder 6. Each mounting rod 7 will drive its corresponding T-shaped slider 11 to slide within its corresponding T-shaped groove 4, thereby reducing the overall outer diameter of the four mounting rods 7, making it easier to pass through one of the squares on the grid ceiling. After all four mounting rods 7 have passed through the squares of the grid ceiling and the limiting blocks 3 outside the four mounting rods 7 are all above the grid ceiling, the pull ring 10 is released. At this time, under the force of the spring 8, the four mounting rods 7 will move synchronously away from the fixing cylinder 6 until the outer wall of the four mounting rods 7 is tightly fitted with the squares of the grid ceiling. At this time, the smoke detector body 1 can be fixed.

[0030] Finally, pull down the smoke detector body 1 to cause the four mounting rods 7 to slide downwards along the grid of the suspended ceiling until the limiting blocks 3 outside the four mounting rods 7 are all in contact with the upper end of the grid ceiling. Figure 7 As shown, the smoke detector body 1 can now be fixed on the grid ceiling. Under the action of the limiting block 3, the smoke detector body 1 will not fall.

[0031] It should be noted that the smoke detector body 1 can be fixed by means of four mounting rods 7 that can retract and expand synchronously and by means of the grid of the grid ceiling. The fixing is simple and quick. In addition, due to the adjustability of the four mounting rods 7, it can also be adapted to the installation of grid ceilings with multiple squares of different specifications, so it has good applicability.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," 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 elements inherent to such process, method, article, or apparatus.

[0033] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smoke detector for fire engineering, comprising a smoke detector main body (1), characterized in that: Four mounting rods (7) are arranged in a circular array around the center of the upper end of the smoke sensor body (1). A guide mechanism is provided between the lower end of the four mounting rods (7) and the upper end of the smoke sensor body (1). Limiting blocks (3) are fixedly connected to the outer wall of the four mounting rods (7) near the upper edge. A fixing cylinder (6) is fixedly connected to the middle of the upper end of the smoke sensor body (1). Four support cylinders (5) are fixedly connected to the outer wall of the fixing cylinder (6) in a circular array around its center. Connecting rods (2) are slidably inserted into the interior of the four support cylinders (5). The ends of the four connecting rods (2) away from the fixing cylinder (6) are fixedly connected to the outer wall of the four mounting rods (7). Elastic elements are provided between the four support cylinders (5) and the four connecting rods (2). A synchronous adjustment mechanism is provided between the ends of the four connecting rods (2) near the fixing cylinder (6), the support cylinders (5), and the smoke sensor body (1).

2. A smoke detector for fire protection engineering according to claim 1, characterized in that: The guiding mechanism includes a T-shaped groove (4) and a T-shaped slider (11). The T-shaped groove (4) is opened at the upper end of the smoke sensor body (1) corresponding to the mounting rod (7). The T-shaped slider (11) is fixedly connected to the lower end of the mounting rod (7). The T-shaped slider (11) and the T-shaped groove (4) are in sliding cooperation.

3. A smoke detector for fire protection engineering according to claim 1, characterized in that: The elastic element includes a spring (8), one end of which is fixedly connected to the end of the connecting rod (2) near the fixed cylinder (6), and the other end of which is fixedly connected to the inner wall of the support cylinder (5) near the fixed cylinder (6).

4. A smoke detector for fire protection engineering according to claim 1, characterized in that: The synchronous adjustment mechanism includes four connecting ropes (9). One end of each of the four connecting ropes (9) is fixedly connected to one end of each of the four connecting rods (2) near the fixed cylinder (6). The other ends of the four connecting ropes (9) are movably inserted through one end of each of the four support cylinders (5) near the fixed cylinder (6). All four connecting ropes (9) are slidably inserted into the inner wall of the fixed cylinder (6). The other ends of the four connecting ropes (9) are fixedly connected to a pull rope (12). The top end of the pull rope (12) is located inside the fixed cylinder (6). The lower end of the pull rope (12) is movably inserted through the center of the lower end of the smoke sensor body (1). The lower end of the pull rope (12) is provided with a pulling element.

5. A smoke detector for fire protection engineering according to claim 4, characterized in that: The pulling component includes a pull ring (10), which is fixedly connected to the bottom end of the pull rope (12) and is located near the center of the lower end of the smoke sensor body (1).

6. A smoke detector for fire protection engineering according to claim 1, characterized in that: The limiting block (3) and the mounting rod (7) are integrally formed.

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