Pressure sensor
By combining the sealing gasket ring and the side ring design, the problems of loose pressure sensor connection nuts and poor sealing are solved, achieving stable connection and improved sealing, thus ensuring the long-term normal use of the pressure sensor.
Patent Information
- Application Number
- CN202421182521.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Existing pressure sensors are prone to loosening of the nuts and poor sealing during prolonged use, allowing dust and other debris to enter and affecting normal operation.
The combination structure of sealing gasket and side ring is adopted. The sealing gasket fits tightly with the connecting screw hole. Combined with the design of the fixing clamp and fixing groove of the side ring, the connecting nut is ensured to be tight and prevented from loosening. The sealing performance is improved by the cooperation of rubber and inner shaping ring.
It effectively prevents the connecting nut from loosening, ensures stability during long-term use, improves sealing, prevents dust and other debris from entering, and ensures the normal operation of the pressure sensor.
Smart Images
Figure CN222318280U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure sensors, in particular to a pressure sensor. Background Art
[0002] A pressure sensor is a device that measures pressure. The pressure measured by the pressure sensor is typically output by the pressure sensor in the form of a signal, such as an electrical signal. For example, some pressure sensors employ strain gauges that are wired in a bridge configuration and bonded to a diaphragm. Here, the pressure applied to the pressure sensor causes the diaphragm to deform, which introduces strain into the strain gauge. The strain to the strain gauge produces a change in resistance in the strain gauge that is proportional to the pressure. The change in resistance is typically output from the pressure sensor in the form of an analog electrical signal.
[0003] However, the existing pressure sensors have the following problems during use: since the connecting wire and the sensor are generally only connected by a nut for threaded connection, the nut is prone to loosening during long-term use, and the sealing is poor, and dust and other debris may enter, which affects the normal use of the pressure sensor. Therefore, it is necessary to design a corresponding technical solution to solve the existing technical problems. Utility Model Content
[0004] The purpose of the utility model is to provide a pressure sensor, which solves the technical problem that the connection between the connecting wire and the sensor generally only relies on a nut for threaded connection, the nut is prone to loosening during long-term use, and the sealing is poor, and dust and other debris may enter, which affects the normal use of the pressure sensor, thereby meeting actual use needs.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a pressure sensor and a connecting plug wire, a connecting threaded port is arranged on the top of the pressure sensor, a sealing gasket is arranged on the top of the pressure sensor, a side ring is arranged on the top edge of the sealing gasket, a plurality of positioning protrusions are arranged on the bottom of the sealing gasket, a plurality of fixing grooves are arranged on the outer edge of the side ring, a connecting nut is arranged on the connecting plug wire near the bottom, a fixing plate is arranged on the bottom of the connecting nut, and a plurality of fixing clamps are arranged on the top edge of the fixing plate.
[0006] As a preferred embodiment of the utility model, a mounting stud is provided in the middle of the bottom of the pressure sensor, a fastening convex edge is provided on the outer edge of the bottom of the pressure sensor, and the outer edge of the fastening convex edge is a hexagonal structure.
[0007] As a preferred embodiment of the present utility model, the end of the connecting wire is in an "L" shape, one end of the connecting wire is plugged into the top of the pressure sensor, the connecting nut is threadedly connected to the connecting thread, and the connecting nut and the connecting wire are rotationally connected.
[0008] As a preferred embodiment of the present invention, the inner ring of the sealing gasket fits tightly against the outer wall of the connecting threaded port, the sealing gasket has a plurality of snap-in grooves on the side facing the connecting nut, and the top of the pressure sensor is provided with a plurality of positioning grooves for use with the positioning protrusions.
[0009] As a preferred embodiment of the utility model, the side ring is composed of rubber and an inner molding ring, the fixing fixture is in a "U" shape as a whole, the fixing fixture has deformation force, one end of the fixing fixture is clamped in the fixing groove, and a plurality of bite blocks are provided on one side of the fixing fixture.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] Through the coordinated use of components such as sealing gaskets and side rings, the connecting nut and the pressure sensor can be effectively sealed. At the same time, after the connecting nut is tightened, the fixing fixture can be pressed to press one end into the fixing groove to avoid loosening of the connecting nut, thereby ensuring the stability of the connection for long-term use, thereby solving the problem affecting the normal use of the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is an overall schematic diagram of the utility model;
[0013] Figure 2 This is a structural diagram of the connection screw port described in the utility model;
[0014] Figure 3 This is a structural diagram of the sealing gasket ring described in the utility model;
[0015] Figure 4 This is a structural diagram of the connecting nut described in the utility model;
[0016] Figure 5 This is a structural diagram of the fixed plate described in the utility model.
[0017] In the figure: connecting wire-1, connecting nut-2, pressure sensor-3, fastening flange-4, mounting stud-5, side ring-6, connecting thread-7, sealing gasket-8, positioning protrusion-9, fixing groove-10, fixing fixture-11, fixing plate-12. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-5 The utility model provides a technical solution: a pressure sensor, comprising: a pressure sensor 3 and a connecting plug wire 1, a connecting screw port 7 is arranged on the top of the pressure sensor 3, a sealing gasket ring 8 is arranged on the top edge of the sealing gasket ring 8, a side ring 6 is arranged on the bottom of the sealing gasket ring 8, a plurality of positioning protrusions 9 are arranged, a plurality of fixing grooves 10 are arranged on the outer edge of the side ring 6, a connecting nut 2 is arranged near the bottom of the connecting plug wire 1, a fixing plate 12 is arranged on the bottom of the connecting nut 2, and a plurality of fixing fixtures 11 are arranged on the top edge of the fixing plate 12.
[0020] As a further improvement, a mounting stud 5 is provided in the middle of the bottom of the pressure sensor 3, and a fastening flange 4 is provided on the outer edge of the bottom of the pressure sensor 3, and the outer edge of the fastening flange 4 is a hexagonal structure.
[0021] As a further improvement, the end of the connecting plug wire 1 is in an "L" shape, one end of the connecting plug wire 1 is plugged into the top of the pressure sensor 3, the connecting nut 2 is threadedly connected to the connecting thread 7, and the connecting nut 2 and the connecting plug wire 1 are rotationally connected.
[0022] As a further improvement, the inner ring of the sealing gasket 8 fits tightly against the outer wall of the connecting thread 7, the sealing gasket 8 has a plurality of snap-in grooves on the side facing the connecting nut 2, and a plurality of positioning grooves for cooperating with the positioning protrusions 9 are provided on the top of the pressure sensor 3.
[0023] According to further improvements, the side ring 6 is composed of rubber and an inner shaping ring. Specifically, the rubber layer in the side ring 6 and the sealing gasket 8 are an integrated structure, and the inner shaping ring is installed in the middle of the rubber layer or on the inner wall. The fixing groove 10 is located on the rubber layer and the inner shaping ring. The fixing fixture 11 is an overall "U"-shaped structure. The fixing fixture 11 has deformation force. One end of the fixing fixture 11 is clamped in the fixing groove 10, and a plurality of bite blocks are provided on one side of the fixing fixture 11.
[0024] During use: the utility model installs the sealing gasket ring 8 on the connecting threaded port 7, and simultaneously, the positioning protrusion 9 is inserted into the positioning groove, which has the effect of fixing the position of the sealing gasket ring 8, and then the connecting wire 1 is inserted into the pressure sensor 3, and the connecting nut 2 is rotated to connect with the connecting threaded port 7 until it is completely tightened, and then one end of the fixing fixture 11 is pressed to make one end fit into the fixing groove 10, which has the effect of fixing the connecting nut 2 and avoiding loosening after long-term use.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A pressure sensor, characterized in that: The invention comprises a pressure sensor (3) and a connecting plug wire (1), wherein a connecting thread (7) is arranged on the top of the pressure sensor (3), a sealing gasket (8) is arranged on the top edge of the sealing gasket (8), a side ring (6) is arranged on the bottom of the sealing gasket (8), a plurality of positioning protrusions (9) are arranged, a plurality of fixing grooves (10) are arranged on the outer edge of the side ring (6), a connecting nut (2) is arranged near the bottom of the connecting plug wire (1), a fixing plate (12) is arranged on the bottom of the connecting nut (2), and a plurality of fixing fixtures (11) are arranged on the top edge of the fixing plate (12).
2. A pressure sensor according to claim 1, characterized in that: A mounting stud (5) is arranged in the middle of the bottom of the pressure sensor (3), and a fastening convex edge (4) is arranged on the outer edge of the bottom of the pressure sensor (3), and the outer edge of the fastening convex edge (4) is a hexagonal structure.
3. A pressure sensor according to claim 1, characterized in that: The end of the connecting plug wire (1) is in an "L"-shaped structure, one end of the connecting plug wire (1) is plugged into the top of the pressure sensor (3), the connecting nut (2) and the connecting threaded port (7) are threadedly connected, and the connecting nut (2) and the connecting plug wire (1) are rotationally connected.
4. A pressure sensor according to claim 1, characterized in that: The inner ring of the sealing gasket (8) is tightly fitted to the outer wall of the connecting thread (7), and the sealing gasket (8) has a plurality of snap-in grooves on the side facing the connecting nut (2). The top of the pressure sensor (3) is provided with a plurality of positioning grooves used in conjunction with the positioning protrusion (9).
5. A pressure sensor according to claim 1, characterized in that: The side ring (6) is composed of rubber and an inner shaping ring. The fixing fixture (11) is in a "U"-shaped structure as a whole. The fixing fixture (11) has a deformation force. One end of the fixing fixture (11) is clamped in the fixing groove (10). A plurality of bite blocks are provided on one side of the fixing fixture (11).