An infrared constant gas sensor

Abstract

This utility model relates to the field of gas detection technology and discloses an infrared constant gas sensor, including an installation assembly for mounting the sensor. The installation assembly includes a sensor body, a mounting plate, a limiting block, a connecting column, and a locking block. The sensor body and the mounting plate are aligned, and the locking blocks are symmetrically arranged on the connecting columns, with the locking blocks and connecting columns being elastically set. During the installation of the sensor body and the mounting plate, the positions of the sensor body and the mounting plate are first aligned. Through the installation assembly, the inner connecting column is sent into the corresponding installation position, and the locking block engages with the corresponding position of the mounting plate. After the limiting block engages with the sensor body, one corner position of the sensor body and the mounting plate is restricted. This eliminates the need for the traditional diagonal positioning installation method, reducing installation steps by restricting the position before installation. Furthermore, the limiting block, nut, and locking block allow for quick connection and restriction between the sensor body and the mounting plate.

Description

Technical Field

[0001] This utility model belongs to the field of gas detection technology, specifically, it relates to an infrared constant gas sensor. Background Technology

[0002] An infrared gas sensor is a gas sensing device that identifies gas components and determines their concentrations by utilizing the selective absorption characteristics of the near-infrared spectrum of different gas molecules and the relationship between gas concentration and absorption intensity. An infrared gas sensor includes an infrared light source, an infrared detector, and an optical cell that confines the infrared light within it. After the infrared light absorbs the gas to be detected, its intensity decreases. The infrared detector then detects the change in infrared light intensity to obtain the concentration of the gas being detected.

[0003] A document with publication number (CN110646363B) discloses an infrared gas sensor. The infrared gas sensor includes a housing, an infrared light source, and an infrared detector. The housing has a through hole and comprises a first housing and a second housing connected to each other. The first housing has a first chamber communicating with the through hole, and the inner surface of the sidewall of the first housing has a reflective surface. The second housing is connected to the first housing and has a first channel and a second channel arranged at intervals, both communicating with the first chamber. The infrared light source is located in the first channel, and the infrared detector is located in the second channel. The plane containing the light path of the infrared light in the first and second channels is perpendicular to the plane containing the light path of the infrared light sequentially reflected by the reflective surface. This infrared gas sensor can reduce its size.

[0004] The aforementioned device optimizes the size of the sensor, but does not improve the sensor mounting. Through research and practical use, it was found that most existing mounting methods connect the sensor to the mounting position using fasteners (i.e., bolts, nuts, etc.). However, the sensor's position needs to be confirmed during installation. This means that after installing the diagonal fasteners to position the sensor to the mounting position, the subsequent installation can proceed, making the installation process cumbersome.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the technical problems of sensor installation, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An infrared constant gas sensor includes a mounting assembly for mounting the sensor. The mounting assembly includes a sensor body, a mounting plate, a limiting block, a connecting post, and a locking block. The sensor body and the mounting plate are aligned. The locking blocks are symmetrically arranged on the connecting posts and are elastically connected to them. Each connecting post is located at the corner of the sensor body and the mounting plate. The locking block is engaged with the bottom of the mounting plate. The limiting block is slidably connected to the connecting post and is engaged with the sensor body.

[0008] In a preferred embodiment of this utility model, the mounting plate has limit grooves on its corners, each limit block is engaged with the corresponding limit groove, and a nut is threaded onto the connecting column, with the nut abutting against the limit block.

[0009] In a preferred embodiment of this utility model, each of the connecting columns has a cavity inside, a fixing plate is fixedly connected to the bottom of each connecting column, and a support rod is symmetrically arranged on each fixing plate, with each support rod being fixedly connected to the fixing plate.

[0010] In a preferred embodiment of this utility model, each of the support rods is fixedly connected to a corresponding locking block, and each support rod is fitted with a spring. The end of each spring is fixedly connected to the corresponding locking block and fixing plate, and the locking block is slidably connected to the corresponding wall surface of the connecting column.

[0011] In a preferred embodiment of this utility model, a connecting plate is fixedly connected to the upper end of each connecting column, a transmission rod is threadedly connected to the middle of each connecting plate, and a limiting block is rotatably connected to the bottom of each transmission rod.

[0012] In a preferred embodiment of this utility model, each of the limiting blocks is slidably provided with a guide block on its side, and each guide block is fixedly connected to the corresponding connecting post.

[0013] In a preferred embodiment of this utility model, each of the limiting blocks has a chamfered bottom, and each contact corner between the locking block and the limiting block has a chamfered edge, so that the limiting block and the corresponding locking block are in close contact.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. In the installation of this infrared constant gas sensor, the sensor body and the mounting plate are first aligned. Then, the inner connecting column is inserted into the corresponding installation position through the installation component. The locking block engages with the corresponding position of the mounting plate. After the limiting block engages with the sensor body, one corner of the sensor body and the mounting plate is restricted. This eliminates the need for the traditional diagonal positioning installation method. The installation is performed after position restriction, reducing installation steps. Moreover, the limiting block, nut and locking block quickly connect and restrict the sensor body to the mounting plate.

[0016] 2. When this infrared constant gas sensor needs to be removed, the corresponding locking block can be pushed inward manually to pull the connecting column out from between the sensor body and the mounting plate, realizing the rapid separation between the sensor body and the mounting plate, shortening the disassembly time and steps, and the components of this device can be recycled.

[0017] 3. In this infrared constant gas sensor, the transmission rod rotates and moves downward through the thread, causing the limiting block to contact the corresponding locking block, thereby restricting the position of the locking block and preventing accidental contact that could cause the connecting post and components on the connecting post to detach, resulting in unstable installation of the sensor body and the mounting plate at one corner.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] In the attached diagram:

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram showing the structural separation between the sensor body and the mounting plate of this utility model;

[0022] Figure 3 This is a cross-sectional view of the connecting column structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure between the card blocks of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure between the transmission rod and the connecting plate of this utility model.

[0025] In the diagram: 1. Sensor body; 11. Mounting plate; 2. Limiting block; 21. Limiting groove; 3. Connecting column; 31. Nut; 4. Locking block; 41. Fixing plate; 42. Support rod; 43. Spring; 5. Limiting block; 51. Transmission rod; 52. Connecting plate; 53. Guide block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0027] Please see Figure 1-5An infrared constant gas sensor includes a mounting assembly for mounting the sensor. The mounting assembly includes a sensor body 1, a mounting plate 11, a limiting block 2, a connecting post 3, and a locking block 4. The sensor body 1 and the mounting plate 11 are aligned. The locking blocks 4 are symmetrically arranged on the connecting posts 3 and are elastically connected to the connecting posts 3. Each connecting post 3 is located at a corner of the sensor body 1 and the mounting plate 11, and the locking block 4 is engaged with the bottom of the mounting plate 11. The limiting block 2 is slidably connected to the connecting post 3 and is engaged with the sensor body 1. During the installation of the sensor body 1 and the mounting plate 11, the positions of the sensor body 1 and the mounting plate 11 are first aligned. Then, the inner connecting column 3 is sent into the corresponding installation position through the installation component. The locking block 4 is engaged with the corresponding position of the mounting plate 11. After the limiting block 2 is engaged with the sensor body 1, one corner of the sensor body 1 and the mounting plate 11 is restricted. There is no need to use the traditional diagonal positioning installation method. After the position is restricted, the installation steps are reduced. Moreover, the connecting column 3 is quickly connected and restricted to the mounting plate 11 through the locking block 4 at the bottom.

[0028] It is worth noting that the sensor body 1 includes an infrared gas sensor comprising a housing, an infrared light source, and an infrared detector. The housing has a through hole and comprises a first housing and a second housing connected to each other. The first housing has a first chamber communicating with the through hole, and the inner surface of the side wall of the first housing has a reflective surface. The second housing is connected to the first housing and has a first channel and a second channel arranged at intervals, both of which communicate with the first chamber. The infrared light source is located in the first channel, and the infrared detector is located in the second channel. The plane of the light path of the infrared light in the first channel and the second channel is perpendicular to the plane of the light path of the infrared light reflected by the reflective surface. The above-mentioned infrared gas sensor can reduce the size of the infrared gas sensor. The sensor body 1 has been disclosed in an existing infrared gas sensor CN110646363B, and will not be described in detail here.

[0029] The mounting plate 11 has limit grooves 21 on each corner, and each limit block 2 is engaged with the corresponding limit groove 21. A nut 31 is threaded onto the connecting post 3, and the nut 31 abuts against the limit block 2, engaging between the limit block 2 and the limit groove 21 to restrict the position between the sensor body 1 and the mounting plate 11. The nut 31 is moved on the connecting post 3 through threaded transmission, pulling the connecting post 3 and making tight contact between the locking block 4 and the mounting plate 11. The nut 31 locks the limit block 2 and the sensor body 1. The tight connection between the sensor body 1 and the mounting plate 11 is achieved through the limit block 2, the nut 31 and the locking block 4, reducing the steps required for positioning and improving installation efficiency.

[0030] Each connecting post 3 has an internal cavity, and a fixing plate 41 is fixedly connected to the bottom of each connecting post 3. Each fixing plate 41 has symmetrically arranged support rods 42, each support rod 42 is fixedly connected to the fixing plate 41, and each support rod 42 is fixedly connected to a corresponding locking block 4. Each support rod 42 is fitted with a spring 43, and the end of each spring 43 is fixedly connected to the corresponding locking block 4 and fixing plate 41. The locking block 4 is slidably connected to the corresponding wall surface of the connecting post 3. When the connecting post 3 is inserted into the corresponding position of the sensor body 1 and the mounting plate 11, the locking block 4 is limited by the corresponding position of the sensor body 1 and the mounting plate 11. After the mechanism is completed, the locking blocks 4 are pushed in opposite directions. As the locking blocks 4 move inward, they compress the spring 43, causing the spring 43 to deform and apply the force of the deformation to the locking blocks 4. When the corresponding position on the locking blocks 4 is pushed out of the mounting plate 11, the locking blocks 4 are pushed out of the connecting post 3 by the spring 43. The locking blocks 4 engage with the bottom of the mounting plate 11, achieving quick restriction between the connecting post 3 and the mounting plate 11. When disassembly is required, the corresponding locking blocks 4 are pushed inward manually to pull the connecting post 3 out from between the sensor body 1 and the mounting plate 11, achieving quick separation between the sensor body 1 and the mounting plate 11, shortening the disassembly time and steps. Moreover, the components of this device can be reused.

[0031] Each connecting post 3 has a connecting plate 52 fixedly connected to its upper end. A transmission rod 51 is threadedly connected to the middle of each connecting plate 52. A limiting block 5 is rotatably connected to the bottom of each transmission rod 51. A guide block 53 is slidably arranged on the side of each limiting block 5. Each guide block 53 is fixedly connected to its corresponding connecting post 3. A chamfer is symmetrically arranged at the bottom of each limiting block 5, and a chamfer is also provided at the contact corners of each locking block 4 and the limiting block 5. The limiting block 5 is in close contact with its corresponding locking block 4. The sensor body 1 and the mounting plate 11 are connected by the connecting post 3 and... After the components on the connecting post 3 are assembled, the transmission rod 51 is rotated. The transmission rod 51 rotates and moves downward through the thread, causing the limiting block 5 to contact the corresponding locking block 4. This restricts the position of the locking block 4, preventing accidental contact that could cause the connecting post 3 and its components to detach, thus preventing instability in the installation of the sensor body 1 and the mounting plate 11 at one corner. Furthermore, during the movement of the limiting block 5, the guide block 53 restricts its movement to a straight line, preventing the limiting block 5 from deviating and causing incomplete contact with the locking block 4, which would affect the limiting effect.

[0032] Working principle: During the installation of the sensor body 1 and the mounting plate 11, the positions of the sensor body 1 and the mounting plate 11 are first aligned. Then, the inner connecting post 3 is inserted into the corresponding installation position via the installation assembly. The locking block 4 engages with the corresponding position on the mounting plate 11. After the limiting block 2 engages with the sensor body 1, one corner of the sensor body 1 and the mounting plate 11 is restricted. This eliminates the need for the traditional diagonal positioning installation method, reducing installation steps. Furthermore, the connecting post 3 quickly connects and restricts the mounting plate 11 via the bottom locking block 4, and engages with the limiting block 2 and the limiting groove 21. To achieve positional constraint between the sensor body 1 and the mounting plate 11, the nut 31 is moved along the connecting post 3 via threaded transmission. The connecting post 3 is pulled by the thread, bringing the locking block 4 into tight contact with the mounting plate 11. The nut 31 also locks the limiting block 2 between the sensor body 1 and the mounting plate 11. This tight connection between the sensor body 1 and the mounting plate 11 is achieved through the limiting block 2, the nut 31, and the locking block 4, reducing the steps required for positioning and improving installation efficiency. The connecting post 3 is then inserted into the corresponding positions of the sensor body 1 and the mounting plate 11. After the locking block 4 is constrained by the corresponding positions of the sensor body 1 and the mounting plate 11, the locking block 4 is moved towards the opposite direction. As the locking block 4 moves inward, it compresses the spring 43, causing the spring 43 to deform and apply the force of the deformation to the locking block 4. When the corresponding position on the locking block 4 is pushed out of the mounting plate 11, the locking block 4 is pushed out of the connecting post 3 by the spring 43, and the locking block 4 engages with the bottom of the mounting plate 11, achieving quick restraint between the connecting post 3 and the mounting plate 11. When disassembly is required, the corresponding locking block 4 is manually pushed inward to pull the connecting post 3 out from between the sensor body 1 and the mounting plate 11, achieving quick separation between the sensor body 1 and the mounting plate 11, shortening the disassembly time and steps. Moreover, the components of this device are reusable. After the sensor body 1 and the mounting plate 11 are assembled via the connecting post 3 and the components on the connecting post 3, the transmission rod 51 is rotated. The rotation of the transmission rod 51 moves downward through the thread, and drives the limiting block 5 to contact the corresponding locking block 4, thereby limiting the position of the locking block 4. This prevents the connecting post 3 and the components on the connecting post 3 from detaching due to accidental contact, which would cause the corner of the sensor body 1 and the mounting plate 11 to be unstable. In addition, during the movement of the limiting block 5, the guide block 53 restricts the movement to achieve a straight line, preventing the limiting block 5 from deviating and causing incomplete contact with the locking block 4, which would affect the limiting effect.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An infrared constant gas sensor, characterized by, include: The mounting assembly is used to install the sensor. The mounting assembly includes a sensor body (1), a mounting plate (11), a limiting block (2), a connecting post (3), and a locking block (4). The sensor body (1) and the mounting plate (11) are aligned. The locking blocks (4) are symmetrically arranged on the connecting posts (3) and are elastically set with the connecting posts (3). Each connecting post (3) is set at the corner of the sensor body (1) and the mounting plate (11), and the locking block (4) is locked with the bottom of the mounting plate (11). The limiting block (2) is slidably connected with the connecting post (3) and is locked with the sensor body (1).

2. The infrared constant gas sensor according to claim 1, characterized in that, The mounting plate (11) has a limit groove (21) at each corner. Each limit block (2) is engaged with the corresponding limit groove (21). A nut (31) is threaded onto the connecting column (3), and the nut (31) abuts against the limit block (2).

3. The infrared constant gas sensor according to claim 1, characterized by Each of the connecting columns (3) has a cavity inside, and a fixing plate (41) is fixedly connected to the bottom of each connecting column (3). Each fixing plate (41) is symmetrically provided with a support rod (42), and each support rod (42) is fixedly connected to the fixing plate (41).

4. The infrared constant gas sensor according to claim 3, characterized in that, Each of the support rods (42) is fixedly connected to the corresponding locking block (4), and each support rod (42) is fitted with a spring (43). The end of each spring (43) is fixedly connected to the corresponding locking block (4) and the fixing plate (41), and the locking block (4) is slidably connected to the corresponding wall surface of the connecting column (3).

5. The infrared constant gas sensor according to claim 1, characterized by Each of the connecting columns (3) is fixedly connected to a connecting plate (52) at its upper end, and a transmission rod (51) is threadedly connected to the middle of each connecting plate (52). A limiting block (5) is rotatably connected to the bottom of each transmission rod (51).

6. The infrared constant gas sensor according to claim 5, characterized in that Each of the limiting blocks (5) has a guide block (53) slidably provided on its side, and each guide block (53) is fixedly connected to the corresponding connecting post (3).

7. The infrared constant gas sensor according to claim 6, characterized in that Each of the limiting blocks (5) has a chamfered bottom symmetrically provided, and each card block (4) has a chamfered contact corner with the limiting block (5), so that the limiting block (5) and the corresponding card block (4) are in close contact.

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