Embedded fixing structure for air duct of temperature and humidity sensor

Abstract

The utility model relates to the technical field of temperature and humidity sensors, in particular to a temperature and humidity sensor air duct embedded type fixing structure which comprises an air pipe, a temperature and humidity sensor probe and a fixing mechanism used for fixing the position of the temperature and humidity sensor probe, a mounting hole is formed in the outer wall of the air pipe, and the fixing mechanism comprises an arc-shaped sealing plate. An arc-shaped supporting bottom plate is arranged at the bottom of the arc-shaped sealing plate, a first mounting groove is formed in the edge of the top of the arc-shaped sealing plate, a first sealing rubber frame is bonded in the first mounting groove, the outer wall of the first sealing rubber frame is tightly attached to the inner wall of the mounting hole, two threaded columns are arranged at the top of the arc-shaped sealing plate, and the two threaded columns are jointly connected with a sealing cover. According to the embedded fixing structure for the air duct of the temperature and humidity sensor, corrosion of the external environment to the internal sealing structure is effectively isolated through the multi-layer sealing barrier, the aging risk of the first sealing rubber frame and the first sealing rubber ring is greatly reduced, fluid leakage is avoided, the safety of a system is remarkably improved, and the service life of the system is remarkably prolonged.

Description

Technical Field

[0001] This utility model relates to the field of temperature and humidity sensor technology, specifically to an embedded fixed structure for a temperature and humidity sensor in an air duct. Background Technology

[0002] Temperature and humidity sensors are precision devices used to detect ambient temperature and humidity, and are widely used in industrial production, agricultural monitoring, building environment control, and air quality monitoring. Their application is particularly important in duct systems, as they can monitor real-time changes in airflow temperature and humidity, providing accurate data support for air conditioning systems and thus optimizing airflow distribution and temperature and humidity control within the duct. Traditional installation methods for temperature and humidity sensors typically involve external fixing or simple hanging, which are susceptible to interference from the external environment. This is especially true in large-diameter ducts, where the issues of sensor fixation and sealing become more prominent.

[0003] Patent CN218469918U discloses a pipeline temperature and humidity sensor, including a mounting assembly and a sensor probe. The sensor probe is mounted on the mounting assembly, which includes a mounting plate, an inner support plate, and an outer support plate. The mounting plate is circular with an arc surface adapted to the arc surface of the pipeline wall. The inner support plate is fixed to the inner side of the mounting plate and is arranged along the length of the pipeline. The outer support plate is detachably mounted on the outer side of the mounting plate and is also arranged along the length of the pipeline. The sensor probe is mounted on the mounting plate. This invention has a simple structure and is easy to install, greatly reducing the difficulty of installing temperature and humidity sensors in large-diameter pipelines.

[0004] The existing structural design of the aforementioned technology has, to some extent, solved the problem of installing temperature and humidity sensors in large-diameter pipes, and achieved a seal between the edge of the mounting plate and the circular hole by setting a sealing strip. However, in this design, the sealing strip is directly exposed in the gap between the mounting plate and the circular hole. With long-term use, the sealing strip may gradually age or be damaged, leading to leakage of fluid inside the pipe and affecting the safety and reliability of the system. To address this problem, we propose an embedded fixing structure for temperature and humidity sensors in the air duct. This structure not only effectively solves the problem of easy damage to the sealing strip, but also improves the installation stability of the sensor. Utility Model Content

[0005] The purpose of this invention is to provide an embedded fixing structure for a temperature and humidity sensor in an air duct, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An embedded fixing structure for a temperature and humidity sensor duct includes a duct and a temperature and humidity sensor probe, as well as a fixing mechanism for fixing the position of the temperature and humidity sensor probe. The outer wall of the duct has a mounting hole for mounting and sealing the fixing mechanism. The fixing mechanism includes an arc-shaped sealing plate adapted to the shape and size of the mounting hole. The bottom of the arc-shaped sealing plate has an arc-shaped support base plate located inside the duct to provide bottom support stability. A first mounting groove is formed at the top edge of the arc-shaped sealing plate. A first sealing rubber frame is bonded in the first mounting groove. The outer wall of the first sealing rubber frame is tightly fitted with the inner wall of the mounting hole, filling the gap between the mounting hole and the arc-shaped sealing plate to prevent fluid leakage.

[0008] The top center of the arc-shaped sealing plate is provided with an internal threaded sleeve, which is used to cooperate with the threaded connection block of the temperature and humidity sensor probe to fix the temperature and humidity sensor probe. The outer wall of the temperature and humidity sensor probe is provided with a threaded connection block that is threadedly connected to the internal threaded sleeve, which facilitates the installation and disassembly of the temperature and humidity sensor probe.

[0009] The top of the arc-shaped sealing plate is provided with two threaded posts for connecting the sealing cover and pressing it with a locking nut. The two threaded posts are connected to the sealing cover together, covering the outside of the fixing mechanism and providing multiple sealing protection. The threaded posts pass through the top of the inner wall of the sealing cover and are threadedly connected to the locking nut. The bottom of the locking nut abuts against the top of the sealing cover, pressing the sealing cover against the outer wall of the air duct, thereby preventing the first sealing rubber frame from being directly exposed to the outside and reducing the risk of aging of the seal.

[0010] Preferably, the left and right ends of the arc-shaped support base plate protrude from the left and right sides of the arc-shaped sealing plate, respectively, and the top of the arc-shaped support base plate abuts against the inner wall of the air duct, thereby enhancing the uniformity of stress on the inner wall of the air duct.

[0011] Preferably, the bottom center of the arc-shaped support base plate is provided with a circular hole a for the temperature and humidity sensor probe to pass through, ensuring that the temperature and humidity sensor probe can be inserted into the air duct for measurement. The inner wall of the circular hole a is bonded with a first sealing rubber ring, and the inner wall of the first sealing rubber ring is tightly fitted with the outer wall of the temperature and humidity sensor probe to seal the gap between the temperature and humidity sensor probe and the circular hole a, preventing air leakage.

[0012] Preferably, the top of the arc-shaped sealing plate and near the left and right sides are rotatably connected to positioning rotating blocks. The angle can be adjusted during installation to avoid obstructing the movement of the arc-shaped sealing plate. The bottom of the two positioning rotating blocks abuts against the outer wall of the air duct. When the arc-shaped sealing plate is inserted into the air duct through the mounting hole, the two positioning rotating blocks rotate to a position parallel to the left side of the arc-shaped sealing plate to avoid obstructing the upward movement of the arc-shaped sealing plate after the arc-shaped support base plate is fully inserted into the air duct. When the arc-shaped sealing plate moves up and is fully in contact with the mounting hole, the two positioning rotating blocks are rotated outward to a position parallel to the front side of the arc-shaped sealing plate. The two positioning rotating blocks, together with the arc-shaped support base plate, can fix the position of the arc-shaped sealing plate, thereby closing the mounting hole.

[0013] Preferably, the bottom of the sealing cover abuts against the outer wall of the air duct, and a second mounting groove is provided at the inner edge of the bottom of the sealing cover. A second sealing rubber frame is adhered in the second mounting groove, and the bottom of the second sealing rubber frame is tightly fitted to the outer wall of the air duct, thus sealing the contact surface between the sealing cover and the outer wall of the air duct.

[0014] Preferably, a circular hole b is provided in the middle of the top of the inner wall of the sealing cover for the internal threaded sleeve to pass through, providing a channel for the internal threaded sleeve. A second sealing rubber ring is bonded to the inner wall of the circular hole b. The inner wall of the second sealing rubber ring is tightly fitted with the outer wall of the internal threaded sleeve to seal the gap between the internal threaded sleeve and the sealing cover.

[0015] Preferably, the top of the inner wall of the sealing cover has two circular holes c arranged symmetrically from left to right, through which the threaded post passes and achieves a seal. A third sealing rubber ring is bonded to the inner wall of the circular hole c. The inner wall of the third sealing rubber ring is tightly fitted with the outer wall of the toothless part of the threaded post, sealing the gap between the threaded post and the circular hole c.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The embedded fixing structure of this temperature and humidity sensor duct forms a multi-level sealing barrier through a multi-seal design, including a first sealing rubber frame between the arc-shaped sealing plate and the mounting hole, a second sealing rubber frame at the bottom of the sealing cover, a second sealing rubber ring between the internal threaded sleeve and the round hole b, and a third sealing rubber ring between the threaded column and the round hole c. This effectively isolates the external environment from the erosion of the internal sealing structure, significantly reduces the aging risk of the first sealing rubber frame and the first sealing rubber ring, avoids fluid leakage, and significantly improves the safety and service life of the system.

[0018] 2. The temperature and humidity sensor has an embedded fixing structure in the air duct. The arc-shaped support base plate fits tightly against the inner wall of the air duct. Combined with the rotation adjustment function of the positioning rotating block, it ensures that the fixing mechanism is subjected to uniform force in both directions inside and outside the air duct, avoiding displacement caused by airflow impact or vibration.

[0019] 3. The temperature and humidity sensor has an embedded fixed structure in the air duct. The temperature and humidity sensor probe can be quickly installed and disassembled through the threaded connection between the threaded connecting block and the internal threaded sleeve without complicated tools. The sealing cover is pressed by the locking nut and the threaded column, which facilitates disassembly, maintenance or replacement of the seals, reducing maintenance costs and time.

[0020] 4. The temperature and humidity sensor has an embedded fixing structure in the air duct. The sealing cover covers the outside of the fixing mechanism, hiding the sealing strip that was directly exposed in the original technology inside the sealing cover. This reduces the direct erosion of the sealing material by ultraviolet rays, dust and temperature and humidity changes, and further extends the life of the sealing components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the assembly structure of the fixing mechanism and the temperature and humidity sensor probe in this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing mechanism in this utility model;

[0026] Figure 6 This is a schematic diagram of the sealing cover structure in this utility model;

[0027] In the diagram: 1. Air duct; 10. Mounting hole; 2. Fixing mechanism; 20. Arc-shaped sealing plate; 200. First mounting groove; 21. Arc-shaped support base plate; 210. Circular hole a; 22. Positioning rotating block; 23. Internal threaded sleeve; 24. First sealing rubber frame; 25. Threaded post; 26. First sealing rubber ring; 3. Sealing cover; 30. Circular hole b; 31. Circular hole c; 32. Second sealing rubber ring; 33. Third sealing rubber ring; 34. Second mounting groove; 35. Second sealing rubber frame; 4. Locking nut; 5. Temperature and humidity sensor probe; 50. Threaded connecting block. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0030] Please see Figures 1-6 This utility model provides a technical solution:

[0031] The temperature and humidity sensor duct embedded fixing structure includes a duct 1 and a temperature and humidity sensor probe 5, as well as a fixing mechanism 2 for fixing the position of the temperature and humidity sensor probe 5. The outer wall of the duct 1 is provided with a mounting hole 10 for the installation and sealing of the fixing mechanism 2. The fixing mechanism 2 includes an arc-shaped sealing plate 20 that is adapted to the shape and size of the mounting hole 10. The bottom of the arc-shaped sealing plate 20 is provided with an arc-shaped support base plate 21, which is located inside the duct 1 to provide bottom support stability. The top edge of the arc-shaped sealing plate 20 is provided with a first mounting groove 200. A first sealing rubber frame 24 is bonded in the first mounting groove 200. The outer wall of the first sealing rubber frame 24 is tightly fitted with the inner wall of the mounting hole 10, filling the gap between the mounting hole 10 and the arc-shaped sealing plate 20 to prevent fluid leakage.

[0032] An internally threaded sleeve 23 is provided through the middle of the top of the arc-shaped sealing plate 20, which is used to cooperate with the threaded connection block 50 of the temperature and humidity sensor probe 5 to fix the temperature and humidity sensor probe 5. The outer wall of the temperature and humidity sensor probe 5 is provided with a threaded connection block 50 that is threadedly connected to the internally threaded sleeve 23, which facilitates the installation and removal of the temperature and humidity sensor probe 5.

[0033] The top of the arc-shaped sealing plate 20 is provided with two threaded posts 25 for connecting the sealing cover 3 and pressing it with the locking nut 4. The two threaded posts 25 are connected to the sealing cover 3 together, covering the outside of the fixing mechanism 2 and providing multiple sealing protection. The threaded posts 25 pass through the top of the inner wall of the sealing cover 3 and are threadedly connected to the locking nut 4. The bottom of the locking nut 4 abuts against the top of the sealing cover 3, pressing the sealing cover 3 against the outer wall of the air duct 1, thereby preventing the first sealing rubber frame 24 from being directly exposed to the outside and reducing the risk of aging of the seal.

[0034] In this embodiment, the left and right ends of the arc-shaped support base plate 21 protrude from the left and right sides of the arc-shaped sealing plate 20, respectively, and the top of the arc-shaped support base plate 21 abuts against the inner wall of the air duct 1, thereby enhancing the uniformity of force on the inner wall of the air duct 1.

[0035] Specifically, a circular hole a210 is provided in the middle of the bottom of the arc-shaped support base plate 21 for the temperature and humidity sensor probe 5 to pass through, ensuring that the temperature and humidity sensor probe 5 extends into the air duct 1 for measurement. A first sealing rubber ring 26 is bonded to the inner wall of the circular hole a210. The inner wall of the first sealing rubber ring 26 is tightly fitted with the outer wall of the temperature and humidity sensor probe 5, sealing the gap between the temperature and humidity sensor probe 5 and the circular hole a210 to prevent air leakage.

[0036] Furthermore, the top of the arc-shaped sealing plate 20 and near the left and right sides are rotatably connected to positioning rotating blocks 22. The angle can be adjusted during installation to avoid obstructing the movement of the arc-shaped sealing plate 20. The bottom of the two positioning rotating blocks 22 abuts against the outer wall of the air duct 1. When the arc-shaped sealing plate 20 is inserted into the air duct 1 through the mounting hole 10, the two positioning rotating blocks 22 rotate to a position parallel to the left side of the arc-shaped sealing plate 20 to avoid obstructing the upward movement of the arc-shaped sealing plate 20 after the arc-shaped support base plate 21 is fully inserted into the air duct 1. When the arc-shaped sealing plate 20 moves upward and is fully attached to the mounting hole 10, the two positioning rotating blocks 22 are rotated outward to a position parallel to the front side of the arc-shaped sealing plate 20. The two positioning rotating blocks 22, together with the arc-shaped support base plate 21, can fix the position of the arc-shaped sealing plate 20, thereby closing the mounting hole 10.

[0037] Furthermore, the bottom of the sealing cover 3 abuts against the outer wall of the air duct 1, and a second mounting groove 34 is provided at the inner edge of the bottom of the sealing cover 3. A second sealing rubber frame 35 is bonded in the second mounting groove 34, and the bottom of the second sealing rubber frame 35 is tightly fitted to the outer wall of the air duct 1, thus sealing the contact surface between the sealing cover 3 and the outer wall of the air duct 1.

[0038] Furthermore, a circular hole b30 is provided in the middle of the top of the inner wall of the sealing cover 3 for the internal threaded sleeve 23 to pass through, providing a channel for the internal threaded sleeve 23. A second sealing rubber ring 32 is bonded to the inner wall of the circular hole b30. The inner wall of the second sealing rubber ring 32 is tightly fitted with the outer wall of the internal threaded sleeve 23, sealing the gap between the internal threaded sleeve 23 and the sealing cover 3.

[0039] Furthermore, two circular holes c31 arranged symmetrically on the top of the inner wall of the sealing cover 3 are provided for the threaded post 25 to pass through and achieve sealing. A third sealing rubber ring 33 is bonded to the inner wall of the circular hole c31. The inner wall of the third sealing rubber ring 33 is tightly fitted with the outer wall of the toothless part of the threaded post 25 to seal the gap between the threaded post 25 and the circular hole c31.

[0040] In this embodiment, the embedded fixing structure for the temperature and humidity sensor in the duct is used as follows: First, the arc-shaped sealing plate 20 of the fixing mechanism 2 is inserted into the duct 1 through the mounting hole 10 on the outer wall of the duct 1. At this time, the positioning rotating block 22 on the top of the arc-shaped sealing plate 20 is rotated to a position parallel to the left side of the arc-shaped sealing plate 20 to prevent the positioning rotating block 22 from obstructing the arc-shaped support base plate 21 from fully entering the duct 1. Then, the arc-shaped sealing plate 20 is moved upward so that the top of the arc-shaped support base plate 21 is tightly fitted to the inner wall of the duct 1. At the same time, the positioning rotating block 22 is rotated outward to a position parallel to the front side of the arc-shaped sealing plate 20 so that its bottom is pressed against the outer wall of the duct 1, thus fixing the position of the arc-shaped sealing plate 20 in conjunction with the arc-shaped support base plate 21. Then, the bottom of the sealing cover 3 is pressed against the outer wall of the duct 1, and the round hole b30 and round hole c on the top of the sealing cover 3 are closed. 31. Insert the internal threaded sleeve 23 and threaded post 25 into the duct 1 respectively, ensuring that the second sealing rubber frame 35 fits against the outer wall of the duct 1. At the same time, the second sealing rubber ring 32 and the third sealing rubber ring 33 seal the gaps between the internal threaded sleeve 23 and the round hole b30, and between the threaded post 25 and the round hole c31 respectively. Then, tighten the locking nut 4 on the top of the threaded post 25 to press the sealing cover 3, completing the overall installation of the fixed structure. Finally, align the threaded connecting block 50 of the temperature and humidity sensor probe 5 with the internal threaded sleeve 23 on the top of the arc-shaped sealing plate 20, so that the temperature and humidity sensor probe 5 passes through the round hole a210 of the arc-shaped support base plate 21 and extends into the duct 1. The first sealing rubber ring 26 on the inner wall of the round hole a210 achieves the seal between the probe 5 and the round hole a210. When disassembling, the reverse operation can be used to maintain or replace the parts.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature and humidity sensor duct embedded fixing structure, comprising a duct (1) and a temperature and humidity sensor probe (5), and a fixing mechanism (2) for fixing the position of the temperature and humidity sensor probe (5), characterized in that: The outer wall of the duct (1) is provided with a mounting hole (10). The fixing mechanism (2) includes an arc-shaped sealing plate (20) adapted to the shape and size of the mounting hole (10). The bottom of the arc-shaped sealing plate (20) is provided with an arc-shaped support base plate (21). A first mounting groove (200) is provided at the top edge of the arc-shaped sealing plate (20). A first sealing rubber frame (24) is bonded in the first mounting groove (200). The outer wall of the first sealing rubber frame (24) is flush with the mounting hole (10). The inner wall of the 0) is tightly fitted, and the top center of the arc-shaped sealing plate (20) is provided with an internal threaded sleeve (23). The outer wall of the temperature and humidity sensor probe (5) is provided with a threaded connecting block (50) that is threadedly connected to the internal threaded sleeve (23). The top of the arc-shaped sealing plate (20) is provided with two threaded posts (25). The two threaded posts (25) are connected to a sealing cover (3). The threaded posts (25) pass through the top of the inner wall of the sealing cover (3) and are threadedly connected to a locking nut (4).

2. The embedded fixing structure for the temperature and humidity sensor in the air duct according to claim 1, characterized in that: The left and right ends of the arc-shaped support base plate (21) protrude from the left and right sides of the arc-shaped sealing plate (20), respectively, and the top of the arc-shaped support base plate (21) abuts against the inner wall of the air duct (1).

3. The temperature and humidity sensor duct embedded fixing structure according to claim 1, characterized in that: The arc-shaped support base plate (21) has a circular hole a (210) in the middle of its bottom for the temperature and humidity sensor probe (5) to pass through. A first sealing rubber ring (26) is bonded to the inner wall of the circular hole a (210), and the inner wall of the first sealing rubber ring (26) is tightly fitted to the outer wall of the temperature and humidity sensor probe (5).

4. The embedded fixing structure for the temperature and humidity sensor in the air duct according to claim 1, characterized in that: The top of the arc-shaped sealing plate (20) and near the left and right sides are rotatably connected to positioning rotating blocks (22), and the bottom of the two positioning rotating blocks (22) abuts against the outer wall of the air duct (1).

5. The embedded fixing structure for the temperature and humidity sensor in the air duct according to claim 1, characterized in that: The bottom of the sealing cover (3) abuts against the outer wall of the air duct (1). A second mounting groove (34) is provided at the inner edge of the bottom of the sealing cover (3). A second sealing rubber frame (35) is bonded in the second mounting groove (34). The bottom of the second sealing rubber frame (35) is tightly fitted to the outer wall of the air duct (1).

6. The embedded fixing structure for the temperature and humidity sensor in the air duct according to claim 1, characterized in that: The sealing cover (3) has a circular hole b (30) at the top center of the inner wall for the internal threaded sleeve (23) to pass through. The inner wall of the circular hole b (30) is bonded with a second sealing rubber ring (32), and the inner wall of the second sealing rubber ring (32) is tightly fitted with the outer wall of the internal threaded sleeve (23).

7. The embedded fixing structure for the temperature and humidity sensor in the air duct according to claim 1, characterized in that: The top of the inner wall of the sealing cover (3) has two circular holes c (31) arranged symmetrically on the left and right. The inner wall of the circular holes c (31) is bonded with a third sealing rubber ring (33). The inner wall of the third sealing rubber ring (33) is tightly fitted with the outer wall of the toothless part of the threaded column (25).

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