Protective pressure sensor

Abstract

The utility model belongs to the technical field of pressure sensors, and particularly relates to a protective pressure sensor, which comprises a pressure sensor body and a protective assembly arranged on the pressure sensor body, a pull rod is pulled outwards, the pull rod drives a limiting sliding disc to slide in a limiting sliding cavity and compresses a spring, and a limiting head moves along with the limiting sliding disc. During installation, the inserting column of the lower shell is inserted into the inserting hole of the upper shell, then the pulling force applied by the pull rod is released, the limiting sliding disc is reset under the acting force of the spring, the limiting head is reset at the moment, the limiting head is clamped into the limiting hole for limiting at the moment, installation is completed, the pull rod is pulled outwards reversely, and limiting between the limiting head and the limiting hole is relieved; installation and disassembly can be completed through pulling and conveying, and maintenance operation of the pressure sensor body is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure sensors, and particularly relates to a protective pressure sensor. Background Art

[0002] A pressure sensor is a device or apparatus that can sense a pressure signal and convert the pressure signal into an available output electrical signal according to a certain rule. The pressure sensor is one of the most commonly used sensors in industrial practice, and it is widely used in various industrial automatic control environments, involving many industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, electric power, ships, machine tools, pipelines, etc.

[0003] In order to prevent the internal circuit board from loosening and the internal components from wearing when the existing pressure sensor is under external force during use, a protective shell is added to its outside. However, the traditional protective shell is fixed by bolts. After long-term use, the bolts corrode and rust, and it is impossible to disassemble the pressure sensor during maintenance. Summary of the Utility Model

[0004] To solve the problems raised in the above background art, the utility model provides a protective pressure sensor, which includes a pressure sensor body and a protective component arranged on the pressure sensor body;

[0005] The protective component is composed of an upper shell and a lower shell. A pair of insertion posts are fixedly arranged on the lower shell, a limiting hole is opened on the insertion post, a pair of insertion holes are opened on the upper shell, and a limiting mechanism is arranged on the upper shell.

[0006] As a protective pressure sensor of the utility model, preferably, the insertion post matches the insertion hole, and the insertion post is inserted into the insertion hole.

[0007] As a protective pressure sensor of the utility model, preferably, the limiting mechanism includes a limiting sliding cavity opened on the upper shell, and a limiting sliding disk is arranged inside the limiting sliding cavity.

[0008] As a protective pressure sensor of the utility model, preferably, a limiting head is fixedly arranged on the left side of the limiting sliding disk, and a pull rod is fixedly arranged on the right side of the limiting sliding disk.

[0009] As a protective pressure sensor of the utility model, preferably, the limiting sliding disk matches the limiting sliding cavity, and the limiting sliding disk slides left and right inside the limiting sliding cavity.

[0010] As a protective pressure sensor of the utility model, preferably, a spring is sleeved on the pull rod inside the limiting sliding cavity, and the limiting sliding cavity communicates with the insertion hole.

[0011] As a protective pressure sensor of the present utility model, preferably, the limiting hole matches the limiting head, and the limiting head is clamped inside the limiting hole.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Pull the pull rod outwards. The pull rod drives the limiting sliding disc to slide inside the limiting sliding cavity and compresses the spring. And the limiting head moves along with the limiting sliding disc. Insert the inserting post of the lower housing into the inserting hole of the upper housing. Then release the pulling force applied to the pull rod. The limiting sliding disc resets under the action of the spring. At this time, the limiting head follows the reset. At this time, the limiting head is clamped inside the limiting hole for limiting, and the installation is completed. On the contrary, pull the pull rod outwards to release the limit between the limiting head and the limiting hole, and then complete the disassembly of the housing. The installation and disassembly can be completed by pulling and releasing once, which is convenient for the maintenance operation of the pressure sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the pressure sensor body of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the upper housing of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the lower housing of the present utility model;

[0019] Figure 5 is Figure 3 a cross-sectional structural diagram at A in ;

[0020] In the figure:

[0021] 1. Pressure sensor body;

[0022] 2. Protection component; 21. Upper housing; 22. Lower housing; 23. Inserting post; 24. Limiting hole; 25. Inserting hole; 26. Limiting mechanism; 261. Limiting sliding cavity; 262. Limiting sliding disc; 263. Limiting head; 264. Pull rod; 265. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figure 1 shown;

[0026] A protective pressure sensor includes a pressure sensor body 1.

[0027] In this embodiment: To solve the technical problems existing in the prior art, as disclosed in the background art above, "In order to prevent the internal circuit board from loosening and the internal components from wearing when the existing pressure sensor is subjected to external forces during use, a protective shell is added to its outside. However, the traditional protective shell is fixed by bolts. After long-term use, the bolts corrode and rust, and it is impossible to disassemble the pressure sensor during maintenance." In combination with actual use, this problem is obviously a real and relatively difficult problem to solve. In view of this, to solve this technical problem, a protective pressure sensor is provided herein.

[0028] As Figure 1-4 shown in the figure;

[0029] Combined with the above content, it further includes a protection component 2 provided on the pressure sensor body 1;

[0030] The protection component 2 is composed of an upper shell 21 and a lower shell 22. A pair of insertion posts 23 are fixedly provided on the lower shell 22. A limiting hole 24 is opened on the insertion post 23. A pair of insertion holes 25 are opened on the upper shell 21. A limiting mechanism 26 is provided on the upper shell 21.

[0031] In an optional embodiment, the insertion post 23 is matched with the insertion hole 25, and the insertion post 23 is inserted into the insertion hole 25. The limiting mechanism 26 includes a limiting sliding cavity 261 opened on the upper shell 21. A limiting sliding disk 262 is arranged inside the limiting sliding cavity 261. A limiting head 263 is fixedly arranged on the left side of the limiting sliding disk 262. A pull rod 264 is fixedly arranged on the right side of the limiting sliding disk 262. The limiting sliding disk 262 is matched with the limiting sliding cavity 261, and the limiting sliding disk 262 slides left and right inside the limiting sliding cavity 261. A spring 265 is sleeved on the pull rod 264 inside the limiting sliding cavity 261. The limiting sliding cavity 261 communicates with the insertion hole 25.

[0032] In this embodiment: Pull the pull rod 264 outwards. The pull rod 264 drives the limit sliding disc 262 to slide inside the limit sliding cavity 261, and compresses the spring 265. And the limit head 263 moves along with the limit sliding disc 262. Release the pulling force applied to the pull rod 264. The limit sliding disc 262 resets under the action of the spring 265. At this time, the limit head 263 follows and resets.

[0033] In an alternative embodiment, the limit hole 24 matches the limit head 263, and the limit head 263 is clamped inside the limit hole 24.

[0034] The working principle of the present utility model:

[0035] Pull the pull rod 264 outwards. The pull rod 264 drives the limit sliding disc 262 to slide inside the limit sliding cavity 261, and compresses the spring 265. And the limit head 263 moves along with the limit sliding disc 262. Insert the insertion post 23 of the lower housing 21 into the insertion hole 25 of the upper housing 21. Then release the pulling force applied to the pull rod 264. The limit sliding disc 262 resets under the action of the spring 265. At this time, the limit head 263 follows and resets. At this time, the limit head 263 is clamped inside the limit hole 314 for positioning, and the installation is completed. On the contrary, pull the pull rod 264 outwards to release the positioning between the limit head 263 and the limit hole 24, and then complete the disassembly of the housing. The installation and disassembly can be completed by pulling and pushing once, which is convenient for the maintenance operation of the pressure sensor body.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A protective pressure sensor, comprising a pressure sensor body (1), characterized in that: It also includes a protection component (2) arranged on the pressure sensor body (1); The protective assembly (2) is composed of an upper shell (21) and a lower shell (22); a pair of plug posts (23) are fixedly arranged on the lower shell (22); a limiting hole (24) is provided on the plug posts (23); a pair of plug holes (25) are provided on the upper shell (21); and a limiting mechanism (26) is provided on the upper shell (21).

2. A protective pressure sensor according to claim 1, characterized in that: The plug post (23) matches the plug hole (25), and the plug post (23) is plugged into the plug hole (25).

3. A protective pressure sensor according to claim 2, characterized in that: The limiting mechanism (26) comprises a limiting sliding cavity (261) opened on the upper shell (21), and a limiting sliding disc (262) is arranged inside the limiting sliding cavity (261).

4. A protective pressure sensor according to claim 3, characterized in that: The limiting head (263) is fixed on the left side of the limiting sliding plate (262), and the pull rod (264) is fixed on the right side of the limiting sliding plate (262).

5. The protective pressure sensor according to claim 3, characterized in that: The limiting sliding plate (262) matches the limiting sliding cavity (261), and the limiting sliding plate (262) slides left and right inside the limiting sliding cavity (261).

6. The protective pressure sensor according to claim 3, characterized in that: A spring (265) is sleeved on the pull rod (264) inside the limiting sliding cavity (261), and the limiting sliding cavity (261) and the insertion hole (25) are communicated with each other.

7. The protective pressure sensor according to claim 1, characterized in that: The limiting hole (24) matches the limiting head (263), and the limiting head (263) is snap-fitted into the inside of the limiting hole (24).

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