Packaging structure of differential pressure sensor

Abstract

The utility model is suitable for the technical field of pressure detection, and provides a packaging structure of a differential pressure sensor, which comprises a sensor body. The protection structure comprises a side shell, a top shell and a detachable shell, and the side shell is provided with a sliding groove; the fixing structure comprises a fixing plate, a connecting plate, a sliding block and a spring, the connecting plate is connected to the fixing plate and the sliding block, the sliding block is arranged in the sliding groove, and the spring is connected to the sliding block and the inner wall of the sliding groove; according to the utility model, a worker pulls the pair of pulling plates, so that the sliding block slides in the sliding groove, the connecting plate and the fixing plate are driven to move towards the direction far away from the sensor body, and at the moment, the spring is stretched; a worker places the disassembly shell between the side shell and the top shell; under the action of the elastic force of the spring, the fixing plate is driven to abut against the dismounting shell; by arranging the fixing plate, the detachable shell can be fixedly connected with the top shell and the side shell, and the situation that the structure is scattered when the detachable shell is subjected to physical impact or vibration of the external environment is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of pressure detection technology, and in particular relates to a packaging structure for a differential pressure sensor. Background Technology

[0002] A differential pressure sensor is a sensor specifically designed to measure the difference between two pressures. It is typically used to measure the pressure difference between the two ends of a device or component, and this difference reflects parameters such as fluid velocity, flow rate, and liquid level. To protect the sensitive elements inside the differential pressure sensor, ensure its stable and accurate operation, and extend the service life of the differential pressure sensor, an encapsulation structure is usually required when installing the differential pressure sensor.

[0003] A search revealed a Chinese patent (publication number: CN210719522U) that discloses a packaging structure for a digital display differential pressure sensor, including an upper shell, a base, and a display screen. The upper shell has a hollow center and a short plate for mounting the display screen, which is located between the first protrusion and the second protrusion. The display screen is fitted inside the first and second protrusions. A protruding end is provided on the inner side of the upper shell edge, close to the inner wall of the shell. The protruding end is integrally formed with the inner wall of the upper shell. The inner side of the base shell edge is provided with a groove for locking the corresponding protruding end. Two mounting grooves with internal and external communication are symmetrically provided on the outer side of the base shell.

[0004] However, during use, the protruding end of this structure is merely snapped into the groove without any other fixing structure. Once subjected to physical impact or vibration from the external environment, the encapsulation structure is very easy to break apart, exposing the delicate sensitive element inside and causing permanent damage to the sensor. Therefore, a different encapsulation structure for differential pressure sensors is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a packaging structure for a differential pressure sensor to solve the problems mentioned in the background art.

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

[0007] A differential pressure sensor packaging structure, comprising:

[0008] Sensor body;

[0009] The protective structure includes a side shell, a top shell, and a disassembly shell. Multiple side shells are provided, and the top shell is installed on the upper ends of the multiple side shells and the disassembly shell. A space is formed between the multiple side shells, the top shell, and the disassembly shell to accommodate the sensor body. The inner wall of the disassembly shell and the inner walls of the multiple side shells are all in contact with the side wall of the sensor body. Two side shells adjacent to the disassembly shell each have a sliding groove.

[0010] The fixed structure is provided in two sets. The fixed structure includes a fixed plate, a connecting plate, a slider and a spring. The connecting plate is connected to the fixed plate and the slider. The fixed plate abuts against the disassembly housing. The slider is slidably disposed in the slide groove. The spring is connected to the slider and the inner wall of the slide groove.

[0011] In a further technical solution, the disassembly housing has a pair of oppositely arranged fixing grooves, the fixing grooves are adapted to the fixing plate, and the fixing plate is placed in the fixing groove.

[0012] In a further technical solution, the side housing has a mounting hole on the inner wall forming the slide groove, and the two ends of the spring are respectively connected to the inner wall of the mounting hole and the end of the slider away from the connecting plate. The slider has a pulling plate that extends a predetermined distance outside the slide groove.

[0013] In a further technical solution, the two side housings adjacent to the disassembly housing also have limiting holes, and the disassembly housing has a limiting post on one end away from the fixing groove, and the limiting post is inserted into the limiting hole.

[0014] In a further technical solution, the fixing structure also includes a fixing post, the upper end of the disassembly housing has a threaded hole, the top housing has a fixing hole, the fixing post is inserted into the fixing hole, and the lower end of the fixing post is threadedly connected to the threaded hole.

[0015] In a further technical solution, the top housing is rotatably connected to the side housing at one end away from the fixing hole.

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

[0017] This invention features a fixed structure comprising a fixed plate, a connecting plate, a slider, and a spring. The connecting plate is connected to the fixed plate and the slider. The fixed plate abuts against the disassembly housing. The slider is slidably disposed in a groove, and the spring is connected to the slider and the inner wall of the groove. When a worker pulls a pair of pulling plates, the slider slides in the groove, causing the connecting plate and the fixed plate to move away from the sensor body, at which point the spring is stretched. The worker places the disassembly housing between the side housing and the top housing. Under the elastic force of the spring, the fixed plate abuts against the disassembly housing, thus fixing the disassembly housing to the top housing and the side housing, preventing the structure from disintegrating under physical impact or vibration from the external environment.

[0018] This utility model features a fixing post. The upper end of the disassembly housing has a threaded hole, and the top housing has a fixing hole. The fixing post is inserted into the fixing hole, and the lower end of the fixing post is threadedly connected to the threaded hole. The worker inserts the fixing post into the fixing hole and rotates the fixing post to make the lower end of the fixing post tightly connected to the threaded hole. By setting the fixing post, the top housing and the disassembly housing are fixedly connected, further ensuring the stability of the structure.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

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

[0021] Figure 2 This is a partial exploded view of the present invention;

[0022] Figure 3 This is a partial exploded view of the fixed structure of this utility model.

[0023] In the diagram: 1. Sensor body; 2. Protective structure; 21. Side housing; 211. Slide groove; 212. Mounting hole; 213. Limiting hole; 22. Top housing; 221. Fixing hole; 23. Disassembly housing; 231. Fixing groove; 232. Limiting post; 233. Threaded hole; 3. Fixing structure; 31. Fixing plate; 32. Connecting plate; 33. Slider; 331. Pulling plate; 34. Spring; 35. Fixing post. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] like Figures 1 to 3 As shown, this embodiment of the present invention provides a packaging structure for a differential pressure sensor, comprising:

[0027] Sensor body 1;

[0028] The protective structure 2 includes a side shell 21, a top shell 22, and a disassembly shell 23. Multiple side shells 21 are provided. The top shell 22 is installed on the upper ends of the multiple side shells 21 and the disassembly shell 23. A space is formed between the multiple side shells 21, the top shell 22, and the disassembly shell 23 to accommodate the sensor body 1. The inner wall of the disassembly shell 23 and the inner walls of the multiple side shells 21 are all in contact with the side wall of the sensor body 1. The two side shells 21 adjacent to the disassembly shell 23 each have a sliding groove 211.

[0029] The fixing structure 3 is provided in two sets. The fixing structure 3 includes a fixing plate 31, a connecting plate 32, a slider 33 and a spring 34. The connecting plate 32 is connected to the fixing plate 31 and the slider 33. The fixing plate 31 abuts against the disassembly housing 23. The slider 33 is slidably disposed in the slide groove 211. The spring 34 is connected to the slider 33 and the inner wall of the slide groove 211.

[0030] In this embodiment, the sensor body 1 is placed inside multiple side housings 21 and a top housing 22; the worker pulls a pair of pull plates 331 to make the slider 33 slide in the slide groove 211, driving the connecting plate 32 and the fixing plate 31 to move away from the sensor body 1, at which time the spring 34 is stretched; the worker places the disassembled housing 23 between the side housings 21 and the top housing 22; under the elastic force of the spring 34, the fixing plate 31 is driven to abut against the disassembled housing 23; by setting the fixing plate 31, the disassembled housing 23 can be fixedly connected to the top housing 22 and the side housings 21, so as to avoid the structure from falling apart when subjected to physical impact or vibration from the external environment;

[0031] Specifically, the housing 23 is disassembled, and a pair of oppositely arranged fixing slots 231 are disassembled. The fixing slots 231 are adapted to the fixing plate 31, and the fixing plate 31 is placed in the fixing slots 231.

[0032] In this embodiment, under the elastic force of the spring 34, the fixing plate 31 is driven to engage with the fixing groove 231; by setting the fixing plate 31, the disassembly housing 23 can be fixedly connected with the top housing 22 and the side housing 21, so as to prevent the structure from falling apart when subjected to physical impact or vibration from the external environment.

[0033] Specifically, the side housing 21 has a mounting hole 212 on the inner wall forming the slide groove 211. The two ends of the spring 34 are respectively connected to the inner wall of the mounting hole 212 and the end of the slider 33 away from the connecting plate 32. The slider 33 has a pulling plate 331, which extends a predetermined distance outside the slide groove 211.

[0034] Specifically, the two side housings 21 adjacent to the disassembly housing 23 also have limiting holes 213. The disassembly housing 23 has a limiting post 232 on one end face away from the fixing groove 231, and the limiting post 232 is inserted into the limiting hole 213.

[0035] In this embodiment, the worker places the disassembled housing 23 between the side housing 21 and the top housing 22, ensuring that the limiting post 232 is inserted into the limiting hole 213. The limiting post 232 of the color lake is used to accurately fix the disassembled housing 23 to the side housing 21.

[0036] Specifically, the fixing structure 3 also includes a fixing post 35, the upper end of the disassembly housing 23 has a threaded hole 233, the top housing 22 has a fixing hole 221, the fixing post 35 is inserted into the fixing hole 221, and the lower end of the fixing post 35 is threadedly connected to the threaded hole 233.

[0037] In this embodiment, the worker inserts the fixing post 35 into the fixing post fixing hole 221 and rotates the fixing post 35 so that the lower end of the fixing post 35 is tightly connected with the threaded hole 233. By setting the fixing post 35, the top shell 22 and the disassembly shell 23 are fixedly connected, further ensuring the stability of the structure.

[0038] Specifically, the top housing 22 is rotatably connected to the side housing 21 at the end away from the fixing hole 221.

[0039] In this embodiment, when it is necessary to remove the sensor body 1, the worker first rotates the fixing post 35 to remove the fixing post 35 from the fixing hole 221 and the threaded hole 233, pulls a pair of pulling plates 331 to make the fixing plate 31 disengage from the fixing groove 231; finally, the top shell 22 can be rotated, which is simple to operate.

[0040] The working principle of this utility model is as follows:

[0041] During installation, the sensor body 1 is placed inside multiple side housings 21 and top housing 22; the worker pulls a pair of pull plates 331 to make the slider 33 slide in the slide groove 211, which drives the connecting plate 32 and the fixing plate 31 to move away from the sensor body 1, at which time the spring 34 is stretched.

[0042] Subsequently, the worker places the disassembled housing 23 between the side housing 21 and the top housing 22, ensuring that the limiting post 232 is inserted into the limiting hole 213; under the elastic force of the spring 34, the fixing plate 31 is driven to engage with the fixing groove 231; by setting the fixing plate 31, the disassembled housing 23 can be fixedly connected to the top housing 22 and the side housing 21, so as to prevent the structure from falling apart when subjected to physical impact or vibration from the external environment;

[0043] Finally, the worker inserts the fixing post 35 into the fixing post fixing hole 221 and rotates the fixing post 35 so that the lower end of the fixing post 35 is tightly connected with the threaded hole 233. By setting the fixing post 35, the top shell 22 and the disassembly shell 23 are fixedly connected, further ensuring the stability of the structure.

[0044] When it is necessary to remove the sensor body 1, the worker first rotates the fixing post 35 to remove the fixing post 35 from the fixing hole 221 and the threaded hole 233, pulls a pair of pulling plates 331 to make the fixing plate 31 disengage from the fixing groove 231; finally, rotate the top housing 22. The operation is simple.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packaging structure for a differential pressure sensor, characterized in that, include: Sensor body (1); The protective structure (2) includes a side shell (21), a top shell (22), and a disassembly shell (23). Multiple side shells (21) are provided. The top shell (22) is installed on the upper ends of the multiple side shells (21) and the disassembly shell (23). A space is formed between the multiple side shells (21), the top shell (22), and the disassembly shell (23) to accommodate the sensor body (1). The inner wall of the disassembly shell (23) and the inner walls of the multiple side shells (21) are all in contact with the side wall of the sensor body (1). Two side shells (21) adjacent to the disassembly shell (23) each have a sliding groove (211). The fixing structure (3) is provided in two sets. The fixing structure (3) includes a fixing plate (31), a connecting plate (32), a slider (33) and a spring (34). The connecting plate (32) is connected to the fixing plate (31) and the slider (33). The fixing plate (31) abuts against the disassembly housing (23). The slider (33) is slidably disposed in the slide groove (211). The spring (34) is connected to the inner wall of the slider (33) and the slide groove (211).

2. The packaging structure of a differential pressure sensor according to claim 1, characterized in that: The disassembly housing (23) has a pair of oppositely arranged fixing grooves (231), the fixing grooves (231) are adapted to the fixing plate (31), and the fixing plate (31) is placed in the fixing grooves (231).

3. The packaging structure of a differential pressure sensor according to claim 2, characterized in that: The side housing (21) has a mounting hole (212) on the inner wall forming the groove (211). The two ends of the spring (34) are respectively connected to the inner wall of the mounting hole (212) and the end of the slider (33) away from the connecting plate (32). The slider (33) has a pull plate (331) that extends a predetermined distance outside the groove (211).

4. The packaging structure of a differential pressure sensor according to claim 3, characterized in that: The two side housings (21) adjacent to the disassembly housing (23) also have limiting holes (213), and the disassembly housing (23) has a limiting post (232) on one end away from the fixing groove (231), and the limiting post (232) is inserted into the limiting hole (213).

5. The packaging structure of a differential pressure sensor according to claim 4, characterized in that: The fixing structure (3) further includes a fixing post (35), the upper end of the disassembly housing (23) has a threaded hole (233), the top housing (22) has a fixing hole (221), the fixing post (35) is inserted into the fixing hole (221), and the lower end of the fixing post (35) is threadedly connected to the threaded hole (233).

6. The packaging structure of a differential pressure sensor according to claim 5, characterized in that: The top housing (22) is rotatably connected to the side housing (21) at one end away from the fixing hole (221).

Images