Smoke sensor mounting and fixing device

Abstract

The utility model belongs to the technical field of sensor fixing, and particularly relates to a smoke sensor installing and fixing device which comprises a base and a sensor body connected to the lower end of the base in a clamped mode, a guide disc is installed at the bottom of the base, and a plurality of movable grooves distributed circumferentially are formed in the guide disc in the radial direction. A rotating turntable is arranged at the lower end of the guide disc, a sinking groove is formed in the upper end of the sensor body, and an annular clamping seat is formed on the outer ring of the sinking groove; it can be understood that direct installation can be achieved through cooperation of the circular clamping base and the elastic piece clamping block in a pressing mode, alignment of a buckle is not needed, installation convenience is improved, and stability is ensured after clamping; through the design of the sinking groove, the base is tightly butted with the sensor body, and the connecting structure is hidden at the joint of the base and the sensor body to ensure stability and attractiveness. And meanwhile, the sensor body is rotationally detached, so that the use convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sensor fixing technology, and in particular relates to a smoke sensor mounting and fixing device. Background Technology

[0002] Smoke sensors, as key components in fire alarm systems, are widely used in various environments such as homes, offices, and industrial areas, especially in places requiring continuous fire risk monitoring. To effectively prevent fires, smoke sensors need to detect changes in smoke concentration in the air promptly and accurately. Existing smoke sensors generally use a rotary mounting method, fixing the sensor to the base by rotation. This mounting method effectively conceals the connection structure after installation, ensuring aesthetics and safety. However, this mounting method also presents some technical challenges.

[0003] First, the smoke sensor is typically secured to the base via a rotating clip. During installation, the sensor's clips need to be precisely aligned with the clips on the base, a process requiring a high degree of accuracy. In many cases, smoke sensors are installed on floors or ceilings, meaning installers cannot directly observe the clip positions during alignment, increasing the difficulty of precise alignment.

[0004] Furthermore, the lack of clear visibility of the snap-fit ​​connections during installation can lead to improper installation, affecting the sensor's stability and functionality. This issue is particularly pronounced during high-altitude operations, as improper handling can not only prevent correct sensor installation but also compromise the accuracy of fire alarms due to unstable installation positions.

[0005] To address the aforementioned problems, this application proposes a smoke sensor mounting and fixing device. Utility Model Content

[0006] The purpose of this invention is to provide a smoke sensor mounting and fixing device, which solves the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a smoke sensor mounting and fixing device, including a base and a sensor body that is snapped onto the lower end of the base. A guide plate is installed at the bottom of the base, and several movable grooves are radially distributed in the guide plate. A rotating turntable is provided at the lower end of the guide plate. A recessed groove is formed at the upper end of the sensor body, and an annular retainer is formed around the outer ring of the recessed groove.

[0009] Furthermore, the movable groove is provided with a sliding rectangular block, and a locking spring is provided between the rectangular block and the center of the guide plate.

[0010] Furthermore, a circular seat is fixed at the lower end of the rectangular block, and a drive groove for sliding the circular seat is provided on the turntable. The two ends of the drive groove are not equal in length to the center of the turntable.

[0011] Furthermore, a spring-loaded locking block is fixed on the circular base to engage with the annular locking seat. The spring-loaded locking block engages with the annular locking seat through its own elasticity and a locking spring.

[0012] Furthermore, the engaging part of the spring clip block and the annular card seat has an arc-shaped structure that fits tightly against it.

[0013] Furthermore, an active protrusion is fixed at the upper end of the settling tank, and a passive protrusion is fixed at the lower end of the turntable. The active protrusion and the passive protrusion at least partially overlap in height and move in the same circumferential direction.

[0014] Furthermore, cable routing holes are provided in the base, guide plate, and turntable.

[0015] This utility model has the following beneficial effects:

[0016] This utility model uses a circular ring-shaped card seat and a spring-loaded card block to cooperate, which can be directly installed by pressing during actual installation without aligning the buckle on the circumference. Compared with the prior art, the installation convenience is improved, and the stability can be ensured after the lock is engaged.

[0017] This invention features a recessed groove, allowing the base and sensor body to fit tightly together after docking. All connecting structures are located inside the connection point, ensuring stability while achieving a concealed connection and maintaining aesthetics. The sensor body is rotated for easy disassembly, ensuring ease of use.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure in a half-section front view;

[0022] Figure 3 This is a structural diagram of the sensor during disassembly.

[0023] Figure 4 for Figure 3 A structural diagram viewed from below;

[0024] Figure 5 This is a structural diagram of the rectangular block and its connectors when disassembled.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Base; 11. Guide plate; 12. Movable groove; 2. Sensor body; 21. Sink; 22. Annular bracket; 23. Active protrusion; 3. Turntable; 31. Drive groove; 32. Passive protrusion; 4. Rectangular block; 5. Circular seat; 6. Spring clip block; 7. Engaging spring. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Please see Figure 1-5 As shown, this utility model is a smoke sensor mounting and fixing device, including a base 1 and a sensor body 2 that is snapped onto the lower end of the base 1. A guide plate 11 is installed at the bottom of the base 1. Several movable grooves 12 are radially distributed in the guide plate 11. A rotating turntable 3 is provided at the lower end of the guide plate 11. A recessed groove 21 is formed at the upper end of the sensor body 2. An annular retaining seat 22 is formed on the outer ring of the recessed groove 21.

[0030] The movable groove 12 is provided with a sliding rectangular block 4. The rectangular block 4 is provided with a locking spring 7 that abuts against it on the side near the center of the guide plate 11. In this embodiment, the cooperation between the rectangular block 4 and the movable groove 12 guides the movement path of the circular seat 5 and the spring clip block 6, ensuring the tightness of the cooperation between the spring clip block 6 and the annular seat 22.

[0031] In this embodiment, a circular seat 5 is fixed at the lower end of the rectangular block 4, and a drive groove 31 for sliding the circular seat 5 is provided on the turntable 3. The two ends of the drive groove 31 are not equal in length to the center of the turntable 3. In this embodiment, since the two ends of the drive groove 31 are not equal in length to the center, the circular seat 5 is moved by the rotation of the turntable 3, and finally the spring clip block 6 is disengaged from the annular clip seat 22.

[0032] Among them, the circular base 5 is fixed with a spring clip block 6 that engages with the annular base 22. The spring clip block 6 engages with the annular base 22 through its own elasticity and the engagement spring 7. In this embodiment, the spring clip block 6 and the annular base 22 are engaged when the engagement spring 7 is in the reset state.

[0033] The engagement part of the spring clip block 6 and the annular card seat 22 is an arc-shaped structure that fits tightly against it. In this embodiment, the arc-shaped structure can rotate while ensuring stable engagement, and the engagement stability will not be affected while rotating.

[0034] The upper end of the sink 21 is fixed with an active protrusion 23, and the lower end of the turntable 3 is fixed with a passive protrusion 32. The active protrusion 23 and the passive protrusion 32 overlap at least partially and move in the same circumferential direction. In this embodiment, even if the active protrusion 23 and the passive protrusion 32 are far apart, they can still contact each other and transmit power through the rotation of the sensor body 2. Moreover, the area of ​​the upper and lower protrusions is small, and the fault tolerance rate is higher.

[0035] The base 1, guide plate 11, and turntable 3 are all provided with cable routing holes. In this embodiment, the cable routing holes can be set so as not to affect the convenience and stability of the connection between the base 1 and the sensor body 2 while routing the cable.

[0036] Understandably, this utility model utilizes a circular ring-shaped mounting base and a spring-loaded locking block for direct installation via a pressing motion, eliminating the need for alignment with the clips and improving installation convenience. Furthermore, the engagement ensures stability. The recessed design allows for a tight fit between the base and the sensor body, with the connection structure concealed at the joint, ensuring both stability and aesthetics. Additionally, the sensor body is designed for rotational disassembly, further enhancing ease of use.

[0037] One specific application of this embodiment is as follows: Figure 3 and Figure 4The image shows the disassembled state. In this state, the rectangular block 4 and the circular seat 5 are close to the outer periphery of the turntable 3 under the action of the engaging spring 7. When installation is required, the sensor body 2 is directly axially aligned upwards. The chamfer at the front end of the annular seat 22 contacts the chamfer at the front end of the spring clip block 6. The spring clip on the spring clip block 6 deforms. When the front end of the spring clip block 6 is fully inserted into the inner side of the annular seat 22, it is engaged with the sensor body 2 and the base 1 are tightly attached.

[0038] Disassembly: Rotate the sensor body 2. The annular bracket 22 rotates along with the side of the spring clip block 6. After rotation, the active protrusion 23 abuts against the passive protrusion 32. Continue to rotate. Under the action of the active protrusion 23 and the passive protrusion 32, the turntable 3 rotates at the lower end of the guide plate 11. As the radius of the drive groove 31 relative to the circular seat 5 shortens after the turntable 3 rotates, the circular seat 5 will move towards the center of the circular seat 5. This will cause the spring clip block 6 to move inward as well, until the spring clip block 6 and the annular bracket 22 disengage radially. During the movement, the rectangular block 4 slides inside the movable groove 12 to ensure the movement path. After the spring clip block 6 and the annular bracket 22 are completely disengaged, the sensor body 2 can be removed downwards for disassembly. At this time, the active protrusion 23 and the passive protrusion 32 also disengage. Then, the turntable 3, the rectangular block 4, the circular seat 5, and the spring clip block 6 are reset under the action of the locking spring 7. Reinstallation can be completed by pressing.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A smoke sensor mounting fixture comprising a base (1) and a sensor body (2) snap connected to the lower end of the base (1), characterized in that: The base (1) is equipped with a guide plate (11) at the bottom. The guide plate (11) has several circumferentially distributed movable grooves (12) in the radial direction. The guide plate (11) has a rotating turntable (3) at the lower end. The sensor body (2) has a sink groove (21) at the upper end. The sink groove (21) has an annular card seat (22) on its outer ring.

2. A smoke sensor mounting fixture according to claim 1, wherein: The movable groove (12) is provided with a sliding rectangular block (4), and a locking spring (7) is provided between the rectangular block (4) and the center of the guide plate (11).

3. A smoke sensor mounting fixture according to claim 2, wherein: The rectangular block (4) has a circular seat (5) fixed at its lower end. The turntable (3) has a drive groove (31) for sliding the circular seat (5). The two ends of the drive groove (31) are not equal in length to the center of the turntable (3).

4. A smoke sensor mounting fixture according to claim 3, wherein: The circular seat (5) is fixed with a spring clip (6) that engages with the annular seat (22). The spring clip (6) engages with the annular seat (22) through its own elasticity and the engagement spring (7).

5. A smoke sensor mounting fixture according to claim 4, wherein: The engagement part of the spring clip block (6) and the annular card seat (22) is an arc-shaped structure that fits tightly against it.

6. A smoke sensor mounting fixture as defined in claim 1, wherein: An active protrusion (23) is fixed at the upper end of the sink (21), and a passive protrusion (32) is fixed at the lower end of the turntable (3). The active protrusion (23) and the passive protrusion (32) overlap at least partially and move in the same circumferential direction.

7. A smoke sensor mounting fixture as defined in claim 1, wherein: Cable routing holes are provided in the base (1), guide plate (11), and turntable (3).

Images