A detachable, replaceable and repairable mechanical seal structure sensor housing

Abstract

This utility model discloses a detachable, replaceable, and maintainable mechanical seal structure sensor housing, including a sensor front housing, a rear end mechanism on the outer wall of the sensor front housing, a front end mechanism on the bottom of the sensor front housing, and a handle on the outer wall of the sensor front housing. This utility model features a front protective cap that is detachable using a special tool, enabling repeated electrolyte refilling and significantly extending the sensor's lifespan. The handle connects to the rear sensor tail plug via a threaded connection and a sealing gasket structure, ensuring a tight seal. An interlocking component prevents seal failure due to thread uncoupling. Furthermore, this component is only detachable with a special tool, guaranteeing that the core components of the sensor are detachable, maintainable, and replaceable.

Description

Technical Field

[0001] This utility model relates to the field of housing technology, and in particular to a detachable, replaceable and maintainable mechanical seal structure sensor housing. Background Technology

[0002] To prevent external moisture from entering the sensor, existing sensors are generally sealed using a complete potting process. This makes it impossible to disassemble, repair, or replace the internal components. Furthermore, because the potting compound shrinks during curing, the interface between the compound and the sensor material can peel off, making it difficult to completely prevent moisture penetration. To simultaneously ensure effective moisture sealing and meet the requirements for sensor disassembly, repair, and replacement, a structure with partial potting and mechanical seals for critical components was designed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a detachable, replaceable, and maintainable mechanically sealed sensor housing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A detachable, replaceable, and maintainable mechanically sealed sensor housing includes a sensor front housing, characterized in that a rear end mechanism is provided on the outer wall of the sensor front housing, a sensor handle is provided at the bottom of the sensor front housing, and a front end mechanism is provided at the bottom of the sensor handle.

[0006] Preferably, the rear-end mechanism includes a front protective cap, and the inner wall of the front protective cap has a buckle.

[0007] Preferably, the front protective cap has multiple through holes, each containing a sand chip, a temperature sensor, and a pH glass, and a positioning post is fixedly connected inside the front protective cap.

[0008] Preferably, a positioning disk is fixedly connected to the inner wall of the front housing of the sensor, and a first sealing silicone and a second sealing silicone are respectively provided on the inner wall of the front housing and one end of the sensor, and an electrolyte cavity is formed between the first sealing silicone and the second sealing silicone.

[0009] Preferably, the front-end mechanism includes a sensor handle and a rear sensor tail plug, the sensor front shell and the sensor handle are threadedly connected, the outer wall of the sensor front shell is threadedly connected with an anti-rotation buckle, the inner wall of the sensor handle is threadedly connected with a connecting block, and the rear sensor tail plug and the inner wall of the connecting block are threadedly connected.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. By designing a front protective cap that is removable using special tools, the electrolyte can be refilled, greatly extending the sensor's lifespan.

[0012] 2. The handle and the sensor tail plug on the rear shell are connected by a threaded connection with a sealing gasket to ensure a good seal. An interlocking component is also included to prevent seal failure due to thread unraveling. This component is only removable with a special tool, ensuring that the core component of the sensor is removable, repairable, and replaceable.

[0013] 3. The handle and rear shell are connected by threads, with a sealing gasket and an anti-rotation structure. This ensures a good seal and prevents seal failure due to thread unraveling during sensor installation and use. Furthermore, the locking parts of the rear shell can only be disassembled using specialized tools, ensuring that the core components of the sensor are removable, repairable, and replaceable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main body of a detachable, replaceable, and maintainable mechanical seal structure sensor housing proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a detachable, replaceable, and maintainable mechanical seal structure sensor housing proposed in this utility model.

[0016] Figure 3 A schematic diagram of the main structure of the front protective cap of the sensor housing, which is a detachable, replaceable, and maintainable mechanical seal structure proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the rear shell main structure of a mechanically sealed sensor housing that is detachable, replaceable, and repairable, according to the present invention.

[0018] Figure 5 This is an exploded view of the sensor housing of a detachable, replaceable, and maintainable mechanical seal structure proposed in this utility model.

[0019] In the diagram: 1 Sensor front shell, 2 Front protective cap, 3 Positioning plate, 4 Positioning post, 5 Buckle, 6 Anti-rotation buckle, 7 Sensor handle, 8 Connecting block, 9 Rear shell sensor tail plug, 10 Through hole, 11 First sealing silicone, 12 Second sealing silicone, 13 Electrolyte filling port, 14 Overflow port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5 A detachable, replaceable and maintainable mechanical seal structure sensor housing, a sensor front housing 1, characterized in that a rear end mechanism is provided on the outer wall of the sensor front housing 1, a sensor handle 7 is provided at the bottom of the sensor front housing 1, and a rear end mechanism is provided at the bottom of the sensor handle 7.

[0022] In this utility model, the front-end mechanism includes a front-end protective cap 2, and a buckle 5 is provided on the inner wall of the front-end protective cap 2;

[0023] The front protective cap 2 has multiple through holes 10, and each through hole 10 is equipped with a sand core column, a temperature sensor and a pH glass. The front protective cap 2 is fixedly connected to a positioning column 4, which serves to both add electrolyte and seal the overflow port.

[0024] A positioning disk 3 is fixedly connected to the inner wall of the sensor front shell 1. A first sealing silicone 11 and a second sealing silicone 12 are respectively provided on the inner wall and one end of the sensor front shell 1. An electrolyte cavity is formed between the first sealing silicone 11 and the second sealing silicone 12. The positioning disk 3, the silicone sealing silicone 11, and the front protective cap are all provided with centrally symmetrical through holes for placing the pH glass, the sand core column, the temperature sensor, the electrolyte addition port 13, and the overflow port 14, respectively.

[0025] The front-end mechanism includes a sensor handle 7 and a rear sensor tail plug 9. The sensor front housing 1 and the sensor handle 7 are threaded together. The outer wall of the sensor front housing 1 is threaded with an anti-rotation buckle 6. The inner wall of the sensor handle 7 is threaded with a connecting block 8 and the rear sensor tail plug 9.

[0026] Working Principle: In the idle area of ​​this device, all the components mentioned above, which are referred to as structural parts, are connected. The specific connection method should refer to the working principle below, and the connection between each component is completed in the order of operation. The detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and will not explain it further. When using this device, the front protective cap 2 is detachable with the help of special tools. After removing the protective cap 2, the two electrolyte filling ports 13 and overflow ports 14 of the silicone 11 are exposed, making it possible to refill the electrolyte and greatly extending the service life of the sensor. The handle is connected to the front shell 1 and the sensor handle 7 by a threaded connection and a sealing gasket structure to ensure the sealing effect. At the same time, an interlocking part is designed to prevent the seal failure caused by the thread unraveling. The rear housing sensor plug 9 and sensor handle 7 are equipped with a sealing gasket structure. The connecting block 8 and the internal threads of the sensor handle 7 seal the rear housing sensor plug and sensor handle through a union. This part is only removable with the use of a special tool, ensuring that the core part of the sensor is removable, repairable, and replaceable. The handle is connected to the front housing by threads, and the sealing gasket structure is also designed with an anti-rotation structure to ensure the sealing effect and prevent the seal from failing due to thread uncoupling during sensor installation and use. At the same time, the locking parts of the rear housing can only be disassembled with a special tool, ensuring that the core part of the sensor is removable, repairable, and replaceable.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A detachable, replaceable, and maintainable mechanically sealed sensor housing, comprising a sensor front housing (1), characterized in that, The sensor front shell (1) has a rear end mechanism on its outer wall, and a sensor handle (7) is provided at the bottom of the sensor front shell (1). The sensor handle (7) has a front end mechanism at its bottom.

2. The detachable, replaceable, and maintainable mechanical seal structure sensor housing according to claim 1, characterized in that, The rear mechanism includes a front protective cap (2), and a buckle (5) is provided on the inner wall of the front protective cap (2).

3. The detachable, replaceable, and maintainable mechanical seal structure sensor housing according to claim 2, characterized in that, The front protective cap (2) has multiple through holes (10), and each through hole (10) is equipped with a sand chip, a temperature sensor and a pH glass. A positioning post (4) is fixedly connected inside the front protective cap (2).

4. The detachable, replaceable, and maintainable mechanical seal structure sensor housing according to claim 1, characterized in that, The sensor front shell (1) is fixedly connected to the inner wall of the positioning disk (3). The inner wall and one end of the sensor front shell (1) are respectively provided with a first sealing silicone (11) and a second sealing silicone (12). An electrolyte cavity is formed between the first sealing silicone (11) and the second sealing silicone (12).

5. The detachable, replaceable, and maintainable mechanical seal structure sensor housing according to claim 1, characterized in that, The front-end mechanism includes a sensor handle (7) and a rear-shell sensor tail plug (9). The sensor front shell (1) and the sensor handle (7) are threaded together. The outer wall of the sensor front shell (1) is threaded with an anti-rotation buckle (6). The inner wall of the sensor handle (7) is threaded with a connecting block (8). The rear-shell sensor tail plug (9) is also threaded together.

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