Sensor chamber connection components and sensors

Abstract

The present invention relates to the field of sensor technology, and in particular to a sensor air chamber assembly and a sensor. The sensor air chamber connection assembly of the present invention includes a first connection piece and a second connection piece. In some embodiments, the first connection piece is suitable for connecting to a first processor, one end of the second connection piece is at least partially detachably inserted into the first connection piece, and the other end of the second connection piece is suitable for connecting to a probe. The present invention proposes a sensor air chamber connection assembly that can realize rapid disassembly between the air chamber and the sensor body underground.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and in particular to a sensor air chamber component and a sensor. Background Art

[0002] The environment in coal mines is humid and has a high content of corrosive gases, which can easily lead to clogging of the filter in the gas sensor chamber. In addition, the corrosive gas will also reduce the service life of the sensor probe. Therefore, the filter and probe in the sensor chamber need to be replaced regularly.

[0003] In the related art, when disassembling the air chamber, it is necessary to open the sensor back cover first. Since the underground operation requirements of coal mines do not allow the sensor back cover to be opened underground, the air chamber and the sensor body cannot be disassembled on site. The sensor needs to be transferred to the surface for disassembly, which reduces the disassembly efficiency. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a sensor air chamber connection assembly, which can realize the rapid disassembly between the air chamber and the sensor body underground.

[0005] The embodiment of the present invention further provides a sensor.

[0006] The sensor air chamber connection assembly of an embodiment of the present invention includes: a first connection member, which is suitable for connecting to a first processor; a second connection member, one end of which is at least partially detachably inserted into the first connection member, and the other end of the second connection member is suitable for connecting to a probe.

[0007] The sensor air chamber connecting assembly of the embodiment of the present invention can realize the rapid disassembly between the air chamber and the sensor body underground.

[0008] In some embodiments, the sensor air chamber connection assembly also includes a locking assembly, which includes a third connecting piece and a locking component, the third connecting piece is sleeved on the second connecting piece, the locking component is connected to the third connecting piece, and the locking component is used to lock the third connecting piece.

[0009] In some embodiments, a step portion is provided inside the third connecting member, and a protrusion is provided on the second connecting member, and the protrusion abuts against the step portion.

[0010] In some embodiments, the sensor air chamber connection assembly further includes a mounting box, the mounting box is adapted to be connected to the housing, the mounting box has a mounting cavity, and the locking component can pass through the mounting cavity and be inserted into the third connecting member.

[0011] In some embodiments, the locking component also includes a locking piece and a spring, a spiral groove is provided on the outside of the third connecting piece, and a locking hole is also provided on the third connecting piece, the end of the spiral groove is connected to the locking hole, one end of the locking piece extends into the spiral groove, and the locking piece is movable in the spiral groove, a limiting surface is provided on the locking piece, the spring is sleeved on the locking piece, and one end of the spring abuts against the limiting surface, and the other end of the spring abuts against one end of the installation cavity away from the third connecting piece.

[0012] In some embodiments, a first groove and a second groove are provided on a side of the installation box away from the third connecting member, the first groove and the second groove are interconnected and cross-arranged, the depth of the first groove is greater than that of the second groove, a shift rod is provided on the locking member, and the locking member has a first position and a second position. In the first position, one end of the locking member is inserted into the locking hole, and the shift rod is located in the first groove. In the second position, one end of the locking member is located outside the locking hole, and the shift rod is located in the second groove.

[0013] The sensor of the embodiment of the present invention includes: a housing; an air chamber and an air chamber connecting component, wherein the air chamber connecting component includes the air chamber connecting component described in any one of the above embodiments, wherein the first connecting member is connected to the housing, and the second connecting member is connected to the air chamber.

[0014] The sensor according to the embodiment of the present invention can improve disassembly efficiency.

[0015] In some embodiments, the air chamber includes a shell, a probe and a second processor, the second processor and the probe are arranged in the shell, one end of the second processor is connected to the probe, and the other end of the second processor is detachably connected to the second connecting member.

[0016] In some embodiments, the air chamber further comprises a filter assembly, the filter assembly is detachably sealed and connected to the shell, the filter assembly comprises a first filter screen, a second filter screen and a mounting member, the first filter screen and the second filter screen are detachably arranged at intervals on the mounting member.

[0017] In some embodiments, the sensor further includes a sealing member disposed between the second connecting member and the air chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a sensor in the prior art.

[0019] Figure 2 is a schematic diagram of a sensor according to an embodiment of the present invention.

[0020] Figure 3 is another schematic diagram of a sensor according to an embodiment of the present invention.

[0021] Figure 4 is a cross-sectional view of a sensor according to an embodiment of the present invention.

[0022] Figure 5 Schematic diagram of an air chamber according to an embodiment of the present invention.

[0023] Figure 6 Schematic diagram of an installation box according to an embodiment of the present invention.

[0024] Figure 7 Schematic diagram of a first groove and a second groove of an embodiment of the present invention.

[0025] Figure 8 Schematic diagram of a locking member according to an embodiment of the present invention.

[0026] Fig. 9 is a schematic diagram of a third connecting member according to an embodiment of the present invention.

[0027] Fig.10 is another schematic diagram of the third connecting member of the embodiment of the present invention.

[0028] Reference numerals:

[0029] Air chamber connection assembly 100, sealing member 110,

[0030] Air chamber 200, housing 210, probe 220, second processor 230, filter assembly 240, first filter 2410, second filter 2420, mounting member 2430, filter pressing ring 2440, hexagonal copper column 250, sealing ring 260, housing 300, sensor body 310, first processor 320, back cover 330,

[0031] first connecting member 1, second connecting member 2, protrusion 21,

[0032] Locking assembly 3, third connecting member 31, step portion 311, locking hole 312,

[0033] Locking component 32, locking member 321, limiting surface 3211, gear lever 3212, spring 322, pull ring 323,

[0034] The installation box 4 has a mounting cavity 41 , a first groove 42 , and a second groove 43 . DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0036] like Figure 1 As shown, the air chamber 200 in the related art is connected to the housing 300 by threads, the sensor body is arranged in the housing 300, and the air chamber 200 is fixed by fastening bolts inside the housing 300, and the signal processing board in the air chamber 200 is connected to the sensor body by connecting wires. During installation, the air chamber 200 is connected to the sensor body, and then the connecting wires of the signal processing board are connected to the sensor body, and finally the sensor back cover 330 is installed on the sensor body to complete the installation of the sensor. When the air chamber 200 needs maintenance, it is necessary to open the sensor back cover 330 first, disconnect the connecting wires between the signal processing board and the sensor body, loosen the fastening bolts, and then remove the air chamber 200 from the sensor body to complete the disassembly of the air chamber 200. Moreover, the sensor back cover 330 is not allowed to be opened underground in the coal mine, resulting in that when the sensor needs to be maintained, the sensor can only be transferred to the well for disassembly, resulting in low disassembly efficiency.

[0037] To this end, an embodiment of the present invention provides a sensor air chamber connection assembly 100 , which includes a first connection member 1 and a second connection member 2 .

[0038] like Figure 2-Figure 5 As shown, the first connector 1 is suitable for connecting to the first processor 320. One end of the second connector 2 is at least partially detachably inserted into the first connector 1, and the other end of the second connector 2 is suitable for connecting to the probe 220.

[0039] Specifically, the first connecting member 1 is connected to the sensor body 310, the first processor 320 is arranged inside the sensor body 310, and the second connecting member 2 is connected to the air chamber 200. By partially inserting the second connecting member 2 into the first connecting member 1, the first connecting member 1 is connected to the second connecting member 2, and then the air chamber 200 is connected to the sensor body 310.

[0040] It is understandable that the connection between the first connecting member 1 and the first processor 320 and the connection between the second connecting member 2 and the probe 220 enables the information detected by the probe 220 to be transmitted to the first processor 320 .

[0041] For example, the first processor 320 is a mainboard of the sensor body 310 , the first connector 1 is an aviation connector, and the probe 220 is disposed in the air chamber 200 .

[0042] The sensor air chamber connection assembly 100 of the embodiment of the present invention can realize the rapid disassembly between the sensor body 310 and the air chamber 200 through the setting of the first connecting member 1 and the second connecting member 2, so that the sensor body 310 and the air chamber 200 can be independent of each other, thereby improving the assembly and disassembly efficiency of the sensor. Compared with the disassembly method in the related art that requires opening the sensor back cover 330, the embodiment of the present invention realizes the rapid disassembly and assembly of the downhole sensor through the setting of the first connecting member 1 and the second connecting member 2.

[0043] In some embodiments, the sensor air chamber connection assembly 100 also includes a locking assembly 3, the locking assembly 3 includes a third connecting member 31 and a locking component 32, the third connecting member 31 is sleeved on the second connecting member 2, the locking component 32 is connected to the third connecting member 31, and the locking component 32 is used to lock the third connecting member 31.

[0044] Specifically, the third connecting member 31 is sleeved on the outside of the second connecting member 2, and the locking component 32 is connected to the third connecting member 31. Through the cooperation between the locking component 32 and the third connecting member 31, the position of the second connecting member 2 in the up and down directions can be adjusted. When the second connecting member 2 and the first connecting member 1 are in a tightly connected state, the locking component 32 fixes the position of the third connecting member 31, thereby improving the connection stability between the second connecting member 2 and the first connecting member 1.

[0045] In the embodiment of the present invention, the second connecting member 2 is inserted into the first connecting member 1, and the third connecting member 31 sleeved on the outside of the second connecting member 2 is locked by the locking component 32 to prevent the second connecting member 2 from detaching from the first connecting member 1 during use, thereby improving the connection stability between the first connecting member 1 and the second connecting member 2.

[0046] In some embodiments, a step portion 311 is disposed inside the third connecting member 31 , and a protrusion 21 is disposed on the second connecting member 2 , and the protrusion 21 abuts against the step portion 311 .

[0047] Specifically, the third connecting member 31 is sleeved on the outside of the second connecting member 2 by abutting the protrusion 21 against the step portion 311 , so that the third connecting member 31 can be rotated outside the second connecting member 2 .

[0048] like Figure 6-Figure 10 As shown, the sensor air chamber connection assembly 100 further includes a mounting box 4 , which is suitable for being connected to the housing 300 . The mounting box 4 has a mounting cavity 41 , and the locking component 32 can pass through the mounting cavity 41 and be inserted into the third connecting member 31 .

[0049] Specifically, the installation box 4 is arranged at the lower end of the sensor body 310 and located on one side of the air chamber 200. The installation box 4 provides an installation position for the locking component 32. The locking component 32 passes through the installation cavity 41 and is inserted into the third connecting member 31 to fasten the third connecting member 31.

[0050] It can be understood that the installation box 4 and the housing 300 can be an integrated structure or a separate structure, that is, the installation box 4 is installed on the housing 300.

[0051] In some embodiments, the locking component 32 also includes a locking piece 321 and a spring 322. A spiral groove is provided on the outside of the third connecting piece 31. A locking hole 312 is also provided on the third connecting piece 31. The end of the spiral groove is connected to the locking hole 312. One end of the locking piece 321 extends into the spiral groove, and the locking piece 321 is movable in the spiral groove. A limiting surface 3211 is provided on the locking piece 321. The spring 322 is sleeved on the locking piece 321, and one end of the spring 322 abuts against the limiting surface 3211, and the other end of the spring 322 abuts against one end of the installation cavity 41 away from the third connecting piece 31.

[0052] Specifically, a spiral groove is provided on the outer surface of the third connecting member 31, and the end of the spiral groove is connected to the locking hole 312 on the third connecting member 31, that is, one end of the spiral groove coincides with the position of the locking hole 312. The left end of the locking member 321 can be inserted into the spiral groove after passing through the installation cavity 41, and the left end of the locking member 321 can be moved in the spiral groove by rotating the third connecting member 31 to adjust the position of the third connecting member 31 on the spiral groove. When the second connecting member 2 and the first connecting member 1 are in a tightly connected state, the left end of the third connecting member 31 can be extended into the locking hole 312 to fix the position of the third connecting member 31, thereby fixing the positions of the first connecting member 1 and the second connecting member 2.

[0053] Optionally, the left end of the inner wall surface of the installation box 4 abuts against the limiting surface 3211, and the right end of the inner wall surface of the installation box 4 abuts against the right end of the spring 322, that is, the left end of the spring 322 abuts against the limiting surface 3211, and the right end of the spring 322 abuts against the right end of the inner wall surface of the installation box 4. The left end of the locking member 321 can extend out of the installation cavity 41 and abut against the third connecting member 31, and the right end of the locking member 321 is located outside the installation box 4. The setting of the spring 322 can keep the left end of the locking member 321 in abutment with the spiral groove.

[0054] In some embodiments, a first groove 42 and a second groove 43 are provided on the side of the installation box 4 away from the third connecting member 31. The first groove 42 and the second groove 43 are interconnected and cross-arranged. The depth of the first groove 42 is greater than that of the second groove 43. A shift rod 3212 is provided on the locking member 321. The locking member 321 has a first position and a second position. In the first position, one end of the locking member 321 is inserted into the locking hole 312, and the shift rod 3212 is located in the first groove 42. In the second position, one end of the locking member 321 is located outside the locking hole 312, and the shift rod 3212 is located in the second groove 43.

[0055] Specifically, a shift rod 3212 is provided at the right end of the locking piece 321, and a first groove 42 and a second groove 43 are provided on the right side of the installation box 4. The first groove 42 is a transverse groove, and the second groove 43 is a longitudinal groove. The length of the left end of the locking piece 321 extending out of the installation cavity 41 can be adjusted by adjusting the position of the shift rod 3212.

[0056] Optionally, by setting the depth of the first groove 42 to be greater than the depth of the second groove 43, when the shift lever 3212 is located at the first position, the left end of the locking member 321 is inserted into the locking hole 312 to lock the third connecting member 31, thereby locking the air chamber 200 and the sensor body 310; when the shift lever 3212 is located at the second position, the left end of the locking member 321 is located outside the locking hole 312 and can abut against the spiral groove; the position of the left end of the locking member 321 in the spiral groove can be adjusted by rotating the third connecting member 31.

[0057] Optionally, a pull ring 323 is further provided at the right end of the locking member 321 , and the locking member 321 can be pulled from right to left through the pull ring 323 to adjust the position of the shift rod 3212 .

[0058] It can be understood that when the first connecting member 1 is connected to the second connecting member 2 but is not in a tightly connected state, that is, when the second connecting member 2 is not fully inserted into the first connecting member 1, the left end of the locking member 321 abuts against the spiral groove on the third connecting member 31, and by rotating the third connecting member 31, the left end of the locking member 321 moves in the spiral groove, and the second connecting member 2 can be pulled upward, thereby pulling the air chamber 200 upward until the first connecting member 1 is tightly connected to the second connecting member 2. When the first connecting member 1 and the second connecting member 2 are in a tightly connected state, the left end of the locking member 321 moves to the terminal end of the spiral groove, that is, the left end of the locking member 321 is concentric with the locking hole 312, and then the lever 3212 of the locking member 321 is embedded in the transverse groove, so that the left end of the locking member 321 is inserted into the locking hole 312 to fix the position of the third connecting member 31, thereby improving the connection firmness between the first connecting member 1 and the second connecting member 2.

[0059] The sensor according to the embodiment of the present invention includes a housing 300 , an air chamber 200 and an air chamber connecting assembly 100 .

[0060] The air chamber connection assembly 100 includes an air chamber connection assembly 100 using any one of the above embodiments, wherein the first connection member 1 is connected to the housing 300 , and the second connection member 2 is connected to the air chamber 200 .

[0061] Specifically, a sensor body 310 is arranged in the shell 300, and the sensor body 310 includes a first processor 320, a first connecting member 1 is connected to the shell 300, and a second connecting member 2 is connected to the air chamber 200. The air chamber 200 is connected to the shell 300 by connecting the first connecting member 1 and the second connecting member 2, and then the position of the third connecting member 31 is tightened by a locking member 32 arranged in an installation box 4 at the bottom of the shell 300 to achieve a tight connection between the air chamber 200 and the shell 300.

[0062] Optionally, the sensor further includes a back cover 330 , which can be covered on the housing 300 to close the sensor.

[0063] In some embodiments, the air chamber 200 includes a shell 210, a probe 220 and a second processor 230. The second processor 230 and the probe 220 are arranged in the shell 210, one end of the second processor 230 is connected to the probe 220, and the other end of the second processor 230 is detachably connected to the second connecting member 2.

[0064] Specifically, the second connecting member 2 is connected to the shell 210 and the second processor 230 respectively, the second processor 230 is connected to the probe 220 to transmit the data detected by the probe 220 to the second processor 230, and the data detected by the probe 220 is transmitted to the first processor 320 through the connection between the second processor 230 and the second connecting member 2, the connection between the second connecting member 2 and the first connecting member 1, and the connection between the first connecting member 1 and the first processor 320.

[0065] For example, the second processor 230 is a signal processing board, the lower end of the signal processing board is connected to the probe 220 , and the upper end of the signal processing board is connected to the second connecting member 2 .

[0066] For example, the second connecting member 2 can be processed by metal rods, and a hollow copper column sealing structure is set in the middle. The lower end of the second connecting member 2 is provided with a thread, which is connected to the upper end of the air chamber 200 through the thread. The signal processing board and the probe 220 are fixed in the air chamber 200 through a hexagonal copper column 250. A pin is provided at the upper end of the signal processing board, and the pin can be inserted into the hollow copper column, so that the data transmitted by the probe 220 received by the signal processing board can be transmitted to the second connecting member 2, and then through the connection between the second connecting member 2 and the first connecting member 1 and the connection between the first connecting member 1 and the first processor 320, the data information detected by the probe 220 can be transmitted to the first processor 320.

[0067] In some embodiments, the air chamber 200 also includes a filter assembly 240, which is detachably sealed and connected to the shell 210. The filter assembly 240 includes a first filter screen 2410, a second filter screen 2420 and a mounting member 2430. The first filter screen 2410 and the second filter screen 2420 are detachably arranged at intervals on the mounting member 2430.

[0068] Specifically, a filter assembly 240 is provided at the lower end of the air chamber 200, and the first filter screen 2410 is arranged above the second filter screen 2420. The first filter screen 2410 and the second filter screen 2420 are installed on the mounting member 2430 through the filter screen pressing ring 2440. The filter screen pressing ring 2440 and the mounting member 2430 are threadedly connected, and the mounting member 2430 and the air chamber 200 are also threadedly connected.

[0069] The embodiment of the present invention is provided with a double-layer filtering arrangement of a first filter screen 2410 and a second filter screen 2420 , which performs double filtering on the gas flowing into the air chamber 200 , thereby better protecting the probe 220 and increasing the service life of the probe 220 .

[0070] Optionally, a sealing ring 260 may be further provided between the air chamber 200 and the mounting member 2430 .

[0071] In some embodiments, the sensor further includes a sealing member 110 , which is disposed between the second connecting member 2 and the air chamber 200 .

[0072] Optionally, a groove is provided at the upper end of the air chamber 200 , and the sealing member 110 is placed in the groove. The lower end of the second connecting member 2 is pressed into the sealing member 110 to achieve a sealed connection between the air chamber 200 and the second connecting member 2 .

[0073] Optionally, the sealing of the connection of the air chamber 200 is ensured by providing a sealing member 110 between the second connecting member 2 and the air chamber 200 and a sealing ring 260 between the air chamber 200 and the mounting member 2430 .

[0074] When installing the sensor of the embodiment of the present invention, the sensor body 310 can be assembled first, then the locking component 32 can be assembled, and finally the air chamber 200 can be assembled and connected to the sensor body 310 through the air chamber connecting assembly 100. When installing the sensor body 310, the first processor 320 is first installed on the sensor body 310, and then the sensor body 310 is fixed in the housing 300. After the first processor 320 is connected to the first connecting member 1, the first connecting member 1 is fixed to the inner wall of the housing 300 through the locking nut, and finally the back cover 330 is covered on the housing 300 to complete the installation of the sensor body 310.

[0075] When installing the air chamber 200, the lower end of the second connector 2 is connected to the upper end of the air chamber 200, the probe 220 and the second processor 230 are fixed in the air chamber 200, the second processor 230 is connected to the second connector 2, and the filter assembly 240 is installed to the lower end of the air chamber 200 to complete the installation of the air chamber 200. The third connector 31 is sleeved on the outside of the second connector 2, the second connector 2 is inserted into the first connector 1, and the third connector 31 cooperates with the locking component 32 to achieve rapid disassembly and assembly of the first connector 1 and the second connector 2, thereby improving the rapid disassembly and assembly between the air chamber 200 and the sensor body 310.

[0076] It is understandable that the filter assembly 240 can be installed after the position of the probe 220 is fixed, or it can be installed after the air chamber 200 is connected to the sensor body 310.

[0077] When the air chamber 200 is removed from the sensor body 310, the locking piece 321 is withdrawn from the locking hole 312 by pulling the pull ring 323 and the shift rod 3212 is embedded in the second groove 43, and the air chamber 200 is pulled downward to separate the air chamber 200 from the sensor body 310, thereby achieving rapid disassembly between the air chamber 200 and the sensor body 310. In addition, by adopting the air chamber connecting assembly 100 of the embodiment of the present invention to assemble and disassemble the air chamber 200 and the sensor body 310, the air chamber 200 can be separated from the sensor underground in a coal mine.

[0078] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0082] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0083] It is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A sensor air chamber connection assembly, characterized in that: include: a first connector, the first connector being adapted to be connected to a first processor; a second connecting member, one end of which is at least partially detachably inserted into the first connecting member, and the other end of which is suitable for connecting to the probe; It also includes a locking assembly, the locking assembly includes a third connecting piece and a locking component, the third connecting piece is sleeved on the second connecting piece, the locking component is connected to the third connecting piece, and the locking component is used to lock the third connecting piece; Also included is an installation box, the installation box is suitable for being connected to the housing, the installation box has an installation cavity, the locking component can pass through the installation cavity and be inserted into the third connecting member; The locking component also includes a locking piece and a spring. A spiral groove is provided on the outside of the third connecting piece. A locking hole is also provided on the third connecting piece. The end of the spiral groove is communicated with the locking hole. One end of the locking piece extends into the spiral groove, and the locking piece is movable in the spiral groove. A limiting surface is provided on the locking piece. The spring is sleeved on the locking piece, and one end of the spring abuts against the limiting surface, and the other end of the spring abuts against one end of the mounting cavity away from the third connecting piece.

2. The sensor air chamber connection assembly according to claim 1, characterized in that: The third connecting member is provided with a step portion inside, and the second connecting member is provided with a protrusion, and the protrusion abuts against the step portion.

3. The sensor air chamber connection assembly according to claim 2, characterized in that: A first groove and a second groove are provided on a side of the installation box away from the third connecting member, the first groove and the second groove are interconnected and cross-arranged, the depth of the first groove is greater than that of the second groove, a shift rod is provided on the locking member, and the locking member has a first position and a second position, in the first position, one end of the locking member is inserted into the locking hole, and the shift rod is located in the first groove, in the second position, one end of the locking member is located outside the locking hole, and the shift rod is located in the second groove.

4. A sensor, characterized in that: include: shell; An air chamber and an air chamber connecting component, wherein the air chamber connecting component is the air chamber connecting component according to any one of claims 1 to 3, wherein the first connecting member is connected to the outer shell, and the second connecting member is connected to the air chamber.

5. The sensor according to claim 4, characterized in that The air chamber comprises a shell, a probe and a second processor, wherein the second processor and the probe are arranged in the shell, one end of the second processor is connected to the probe, and the other end of the second processor is detachably connected to the second connecting member.

6. The sensor according to claim 5, characterized in that The air chamber further comprises a filter assembly, which is detachably sealed and connected to the shell. The filter assembly comprises a first filter screen, a second filter screen and a mounting member, and the first filter screen and the second filter screen are detachably arranged at intervals on the mounting member.

7. The sensor according to claim 4, characterized in that It also includes a sealing member, which is arranged between the second connecting member and the air chamber.

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