Oxygen sensor with electronic valve

Abstract

The utility model relates to the technical field of oxygen sensors, and discloses an oxygen sensor with an electronic valve. The oxygen sensor with the electronic valve comprises an outer protective shell, a sensor body and a transparent front cover, the sensor body is arranged in the outer protective shell, a stepped hole which is communicated with the interior of the outer protective shell and matched with the transparent front cover is formed in the front side of the outer protective shell, and an assembly shell is fixedly connected to the rear side of the outer protective shell; the device has the advantages that the transparent front cover on the front side of the outer protective shell can be rapidly detached or installed, elastic sealing is achieved between the transparent front cover and the outer protective shell, vibration cannot affect the sealing performance, and the problems that the transparent cover is fixedly connected to the front side of the outer protective shell of the device and used for observing the running state of the sensor, and when the sensor breaks down, the sensor cannot be damaged are solved. The problems that a transparent cover fixed to the front side of an outer protective shell is inconvenient to take down, and sealant is injected into the outer protective shell, so that the sensor is difficult to maintain and only can be replaced, and the cost is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of oxygen sensor technology, specifically an oxygen sensor with an electronic valve. Background Technology

[0002] Oxygen sensors with electronic valves are commonly used to monitor the concentration of oxygen in the environment. These sensors combine electronic control technology with gas detection capabilities. The electronic valve's role here is to control the sensor's sampling and rejection of gas samples, ensuring the accuracy and stability of the measurement.

[0003] As disclosed in announcement number CN218584739U, an oxygen sensor with an electronic valve is proposed. The oxygen sensor with an electronic valve described in this utility model has a simple structure, flexible operation, and convenient use by setting the main body device on the entire device. It can monitor in all directions, is safe and reliable. By setting an external protective device on the entire device, it is easy to observe the internal situation and improves the accuracy of the sensor body.

[0004] The device has a transparent cover fixedly connected to the front of the outer casing to observe the sensor's operating status. When the sensor malfunctions, the transparent cover fixed to the front of the outer casing is not easy to remove, and the outer casing is filled with sealant, which makes it difficult to repair the sensor and can only be replaced, increasing the cost. Therefore, an oxygen sensor with an electronic valve is proposed to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an oxygen sensor with an electronic valve. It features a transparent front cover on the front of the outer casing that can be quickly removed or installed, and an elastic seal between the transparent front cover and the outer casing, ensuring that vibration does not affect the seal. This solves the problems of the previous device where a transparent cover was fixedly connected to the front of the outer casing for observing the sensor's operating status. When the sensor malfunctioned, the transparent cover fixed to the front of the outer casing was difficult to remove, and the sealant inside the outer casing made sensor repair difficult, requiring replacement and increasing costs.

[0007] (II) Technical Solution

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An oxygen sensor with an electronic valve includes an outer shell, a sensor body, and a transparent front cover. The sensor body is disposed inside the outer shell. A stepped hole communicating with the interior of the outer shell and adapted to the transparent front cover is opened on the front side of the outer shell. An assembly shell is fixedly connected to the rear side of the outer shell. An adjustment component is rotatably connected to the assembly shell and extends to its rear side. Gear shafts distributed at four corners and meshing with the adjustment component are rotatably connected to the assembly shell. A connecting component distributed at four corners and extending to the front side of the stepped hole is disposed inside the assembly shell. A clamping component distributed at four corners and extending to its rear side and adapted to the connecting component is embedded on the front side of the transparent front cover.

[0009] The beneficial effects of this utility model are:

[0010] This oxygen sensor with an electronic valve is operated by aligning the transparent front cover with the stepped hole and pushing it in. At this point, the clamping components are aligned and in contact with the corresponding connecting components. By rotating the adjusting component, since the adjusting component and the gear shaft are both engaged, and since the gear shaft is engaged with the connecting components, the connecting components are driven to rotate synchronously. This causes the connecting components and the clamping components to be threadedly connected simultaneously, so that the rear side of the transparent front cover fits tightly against the stepped hole. The clamping force transmitted to the transparent front cover by the clamping component is elastic. It has the advantages of quick removal or installation of the transparent front cover on the front side of the outer shell, and elastic sealing between the transparent front cover and the outer shell, so that vibration will not affect the sealing performance.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the adjustment assembly includes a handwheel shaft and a first gear. The handwheel shaft extending to the rear side is rotatably connected inside the assembly housing, and a gear shaft located inside the assembly housing and meshing with the gear shaft is fixedly connected to the outside of the handwheel shaft.

[0013] Furthermore, the connecting assembly includes a lead screw and a second gear. The assembly housing is rotatably connected to lead screws that are distributed at four corners and extend to the front side of the stepped hole. The rear end of each lead screw is fixedly connected to a second gear that meshes with the gear shaft.

[0014] The beneficial effect of adopting the above-mentioned further solution is that rotating the handwheel shaft drives the first gear to rotate. Since the first gear is meshed with the gear shaft, and since the gear shaft is meshed with the corresponding second gear, the lead screw can be driven to rotate synchronously.

[0015] Furthermore, the clamping assembly includes an outer sleeve, an inner threaded cylinder, and a spring. The front side of the transparent front cover is fitted with an outer sleeve that is distributed at four corners and extends to its rear side. The inner sleeve is slidably connected to an inner threaded cylinder that extends to its front side and is adapted to the lead screw. The outer side of the inner threaded cylinder is fitted with a spring located on the front side of the outer sleeve.

[0016] Furthermore, a rectangular rubber gasket that is compatible with the stepped hole, lead screw, and outer sleeve is fixedly connected to the rear side of the transparent front cover.

[0017] The beneficial effect of adopting the above-mentioned further solution is that when the transparent front cover is aligned with the stepped hole and pushed in, the lead screw is inserted into the outer tube and aligned with and in contact with the inner threaded cylinder. When the lead screw rotates synchronously, the lead screw and the inner threaded cylinder are simultaneously threaded together. The force generated by the rotation of the outer thread of the lead screw drives the inner threaded cylinder to slide backward inside the outer tube, while compressing the spring. The force is transmitted to the outer tube through the spring, which in turn makes the rear side of the transparent front cover fit tightly against the stepped hole. A rectangular rubber gasket is fixedly connected to the rear side of the transparent front cover, which can seal the gap between the rear side of the transparent front cover and the stepped hole. Since the clamping force transmitted to the outer tube and the transparent front cover through the spring is elastic, vibration will not affect its sealing performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the outer protective shell structure of this utility model;

[0020] Figure 3 This is a rear view of the assembly shell structure of this utility model;

[0021] Figure 4 This is a rear sectional view of the assembly shell of this utility model;

[0022] Figure 5 This is an enlarged schematic diagram of the structure at point a of this utility model;

[0023] Figure 6 This is a right-side sectional view of the outer sleeve of this utility model.

[0024] In the diagram: 1. Outer housing; 2. Sensor body; 3. Transparent front cover; 4. Stepped hole; 5. Assembly housing; 6. Adjustment assembly; 601. Handwheel shaft; 602. First gear; 7. Gear shaft; 8. Connecting assembly; 801. Lead screw; 802. Second gear; 9. Clamping assembly; 901. Outer sleeve; 902. Internal threaded cylinder; 903. Spring; 10. Rectangular rubber washer. Detailed Implementation

[0025] 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.

[0026] In the embodiments, by Figure 1-6 The present invention discloses an oxygen sensor with an electronic valve. The present invention includes an outer shell 1, a sensor body 2, and a transparent front cover 3. The sensor body 2 is disposed inside the outer shell 1. A stepped hole 4 is provided on the front side of the outer shell 1, which communicates with the interior and is adapted to the transparent front cover 3. An assembly shell 5 is fixedly connected to the rear side of the outer shell 1. An adjustment component 6 is rotatably connected to the assembly shell 5 and extends to its rear side. Gear shafts 7 are rotatably connected to the assembly shell 5 in a four-corner arrangement and all meshing with the adjustment component 6. A connecting component 8 is provided inside the assembly shell 5 in a four-corner arrangement and extends to the front side of the stepped hole 4. A clamping component 9 is embedded on the front side of the transparent front cover 3 in a four-corner arrangement and extends to its rear side and is adapted to the connecting component 8.

[0027] The adjustment assembly 6 includes a handwheel shaft 601 and a first gear 602. The handwheel shaft 601 extending to the rear side is rotatably connected inside the assembly housing 5. The gear shaft 7 located inside the assembly housing 5 and meshing with the gear shaft 7 is fixedly connected to the outside of the handwheel shaft 601.

[0028] The connecting assembly 8 includes a lead screw 801 and a second gear 802. The assembly housing 5 is rotatably connected to the lead screw 801, which is distributed at four corners and extends to the front side of the stepped hole 4. The rear end of the lead screw 801 is fixedly connected to the second gear 802 that meshes with the gear shaft 7.

[0029] Rotating the handwheel shaft 601 drives the first gear 602 to rotate. Since the first gear 602 is meshed with the gear shaft 7, and since the gear shaft 7 is meshed with the corresponding second gear 802, the lead screw 801 can be driven to rotate synchronously.

[0030] The clamping assembly 9 includes an outer sleeve 901, an inner threaded cylinder 902, and a spring 903. The front side of the transparent front cover 3 is fitted with an outer sleeve 901 that is distributed at four corners and extends to its rear side. The inner threaded cylinder 902 that extends to its front side and is adapted to the lead screw 801 is slidably connected inside the outer sleeve 901. The outer side of the inner threaded cylinder 902 is fitted with a spring 903 located in front of the outer sleeve 901.

[0031] A rectangular rubber gasket 10 is fixedly connected to the rear side of the transparent front cover 3, which is compatible with the stepped hole 4, the lead screw 801 and the outer sleeve 901.

[0032] Align the transparent front cover 3 with the stepped hole 4 and push it in. At this time, the lead screw 801 is inserted into the outer sleeve 901 and aligned with and in contact with the inner threaded cylinder 902. When the lead screw 801 rotates synchronously, the lead screw 801 and the inner threaded cylinder 902 are simultaneously threaded together. The force generated by the rotation of the outer thread of the lead screw 801 drives the inner threaded cylinder 902 to slide backward inside the outer sleeve 901, while simultaneously compressing the spring 903. The force is transmitted to the outer sleeve 901 through the spring 903, which in turn makes the rear side of the transparent front cover 3 fit tightly against the stepped hole 4. A rectangular rubber gasket 10 is fixedly connected to the rear side of the transparent front cover 3, which can seal the gap between the rear side of the transparent front cover 3 and the stepped hole 4. Since the pressing force transmitted to the outer sleeve 901 and the transparent front cover 3 through the spring 903 is elastic, vibration will not affect its sealing performance.

[0033] Working principle:

[0034] Step 1: Align the transparent front cover 3 with the stepped hole 4 and push it in. At this time, the lead screw 801 is inserted into the outer sleeve 901 and aligned with and in contact with the inner threaded cylinder 902.

[0035] Step 2: Rotate the handwheel shaft 601 to drive the first gear 602 to rotate. Since the first gear 602 is meshed with the gear shaft 7, and since the gear shaft 7 is meshed with the corresponding second gear 802, the lead screw 801 can be driven to rotate synchronously.

[0036] Step 3: When the lead screw 801 rotates synchronously, it connects with the internal threaded cylinder 902 simultaneously. The force generated by the rotation of the outer thread of the lead screw 801 causes the internal threaded cylinder 902 to slide backward inside the outer sleeve 901, while simultaneously compressing the spring 903. The force is transmitted to the outer sleeve 901 through the spring 903, which in turn causes the rear side of the transparent front cover 3 to fit tightly against the stepped hole 4. A rectangular rubber gasket 10 is fixedly connected to the rear side of the transparent front cover 3, which can seal the gap between the rear side of the transparent front cover 3 and the stepped hole 4. Since the pressing force transmitted to the outer sleeve 901 and the transparent front cover 3 through the spring 903 is elastic, vibration will not affect its sealing performance.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oxygen sensor with an electronic valve, comprising an outer shell (1), a sensor body (2), and a transparent front cover (3), wherein the sensor body (2) is disposed inside the outer shell (1), characterized in that: The outer shell (1) has a stepped hole (4) on its front side that communicates with its interior and is adapted to the transparent front cover (3). The outer shell (1) is fixedly connected to the rear side of the outer shell (1). The interior of the assembly shell (5) is provided with an adjustment component (6) that is rotatably connected to it and extends to its rear side. The interior of the assembly shell (5) is rotatably connected with gear shafts (7) that are distributed at four corners and mesh with the adjustment component (6). The interior of the assembly shell (5) is provided with connecting components (8) that are distributed at four corners and extend to the front side of the stepped hole (4). The front side of the transparent front cover (3) is fitted with a clamping component (9) that is distributed at four corners and extends to its rear side and is adapted to the connecting component (8).

2. An oxygen sensor with an electronic valve according to claim 1, characterized in that: The adjustment assembly (6) includes a handwheel shaft (601) and a first gear (602). The handwheel shaft (601) extending to the rear side is rotatably connected inside the assembly housing (5). The gear shaft (7) located inside the assembly housing (5) and meshing with the gear shaft (7) is fixedly connected to the outside of the handwheel shaft (601).

3. An oxygen sensor with an electronic valve according to claim 2, characterized in that: The connecting assembly (8) includes a lead screw (801) and a second gear (802). The assembly housing (5) is rotatably connected to the lead screw (801) which is distributed at four corners and extends to the front side of the stepped hole (4). The rear end of the lead screw (801) is fixedly connected to the second gear (802) that meshes with the gear shaft (7).

4. An oxygen sensor with an electronic valve according to claim 3, characterized in that: The clamping assembly (9) includes an outer tube (901), an inner threaded cylinder (902), and a spring (903). The front side of the transparent front cover (3) is fitted with an outer tube (901) that is distributed at four corners and extends to its rear side. The inner threaded cylinder (902) that extends to its front side and is adapted to the lead screw (801) is slidably connected inside the outer tube (901). The outer side of the inner threaded cylinder (902) is fitted with a spring (903) located in front of the outer tube (901).

5. An oxygen sensor with an electronic valve according to claim 4, characterized in that: The transparent front cover (3) is fixedly connected to a rectangular rubber gasket (10) that is compatible with the stepped hole (4), the lead screw (801) and the outer sleeve (901).

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