Pressure sensor with instantaneous pressure buffering function

Abstract

The utility model belongs to the technical field of pressure sensors, particularly relates to a pressure sensor with an instantaneous pressure buffering function, and provides the following scheme aiming at the problem that some pressure sensors are easy to damage after being subjected to large pressure due to the fact that the pressure sensors are not provided with pressure buffering structures in the using process. Comprising a pressure sensor body, the pressure sensor body comprises a mounting seat, a PCB is fixedly mounted in the mounting seat, a connecting rod is fixedly connected above the mounting seat, a pressure head is fixedly mounted above the connecting rod, and a pressure buffer structure is elastically connected to the bottom end of the pressure sensor body. According to the utility model, after the pressure sensor body is subjected to pressure, the mounting seat drives the two groups of pressing rods at the bottom end surface to press downwards, and the pressure of the pressure sensor body is relieved through the pressure spring in the pressure buffer structure and the damper positioned below the mounting seat, so that the instantaneous pressure buffer effect on the pressure sensor is realized.

Description

Technical Field

[0001] The utility model relates to a pressure sensor, in particular to a pressure sensor with instantaneous pressure buffering, belonging to the technical field of pressure sensors. Background Art

[0002] A pressure sensor is a device or apparatus that can sense pressure signals and convert them into electrical signals that can be used for output according to certain rules. It is widely used in various industrial automatic control environments, involving many industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines, etc.

[0003] In the prior art, the pressure sensor disclosed in the announcement number CN218566757U is also a pressure sensor, which has a double-layer diversion hole with a hydrophobic buffering effect through a buffer cover, which is used to divert water to reduce liquid impact and effectively protect the sensor core; the exhaust hole on the sensor body can be connected to an external pipeline, and has better waterproof and ventilation performance under special environments.

[0004] During use of the above scheme, the buffer cover is directly connected to the pressure inlet of the sensor body, and the buffer cover only has a hydrophobic buffering effect, and does not have a buffering effect on the sensor body. When the instantaneous pressure on the sensor body is too large, the sensor body will be damaged. In view of this, a pressure sensor with instantaneous pressure buffer is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a pressure sensor with instantaneous pressure buffering to solve the problem that the buffer cover is directly connected to the pressure inlet of the sensor body, but the buffer cover only has a hydrophobic buffering effect but does not have a buffering effect on the sensor body. When the instantaneous pressure on the sensor body is too large, the sensor body will be damaged.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a pressure sensor with instantaneous pressure buffering, comprising a pressure sensor body, the pressure sensor body comprising a mounting seat, a PCB board is fixedly mounted inside the mounting seat, and a connecting rod is fixedly connected to the top of the mounting seat;

[0007] A pressure head is fixedly installed above the connecting rod, and a pressure buffer structure is elastically connected to the bottom end of the pressure sensor body;

[0008] The pressure buffer structure includes a mounting body, which is a hollow cylindrical structure. A mounting plate is fixedly installed on the top surface of the mounting body by bolts, pressure rods are fixedly installed on both sides of the bottom end of the mounting seat, and a slide rail matching the pressure rod is fixedly installed at the connection between the mounting body and the pressure rod, the slide rail is installed inside the mounting body, a compression spring is fixedly installed inside the slide rail, a mounting disk is fixedly installed on the top of the compression spring, and a damper is fixedly installed in the middle of the mounting body.

[0009] As a further solution of the utility model: a connecting plate is fixedly installed at the end of the pressure rod, and the mounting plate is fixedly installed on the bottom end surface of the connecting plate by bolts.

[0010] As a further solution of the utility model: a mounting structure is slidably installed on the outer side of the connecting rod, and the mounting structure includes two symmetrically arranged arc rings, and connecting plates are slidably installed at corresponding positions of the two arc rings. Elastic ropes are arranged on both sides of the connecting plate, and the two ends of the elastic ropes are respectively installed on the same side of the arc rings.

[0011] As a further solution of the utility model: an arc groove matching with the connecting plate is provided at the connection between the arc ring and the connecting plate, and the arc groove is provided inside the arc ring.

[0012] As a further solution of the present invention: the connecting plate is made of flexible metal material.

[0013] As a further solution of the utility model: a slider is fixedly installed on one side of the arc ring close to the connecting rod, and a sliding groove matching the slider is provided at the connection between the connecting rod and the slider, and the sliding groove is provided on the connecting rod.

[0014] As a further solution of the utility model: a fixing seat is fixedly installed on one side of one group of the arc-shaped rings, and a fixing plate is threadedly installed on one side of the fixing seat.

[0015] The beneficial effects of the utility model are:

[0016] 1. Through the set pressure buffer structure, when the pressure sensor body is subjected to pressure, its mounting seat will drive the two sets of pressure rods at the bottom end surface to press down, and the pressure of the pressure sensor body will be reduced through the compression spring inside the pressure buffer structure and the damper located under the mounting seat, thereby achieving an instantaneous pressure buffering effect on the pressure sensor.

[0017] 2. The arc ring of the mounting structure and the bolt holes on the surface of the arc ring are used to stabilize the entire sensor body, thereby preventing the sensor body from tilting after being subjected to excessive pressure, thereby damaging the pressure buffer structure and the subsequent use of the entire sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the installation structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a part of the pressure buffer structure of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the side of the utility model.

[0022] In the figure: 1. pressure sensor body; 2. mounting seat; 3. connecting rod; 4. pressure head; 5. pressure buffer structure; 501. mounting body; 502. mounting plate; 503. pressure rod; 504. slide rail; 505. compression spring; 506. damper; 6. mounting structure; 601. arc ring; 602. connecting plate; 603. elastic rope; 604. arc groove; 7. slider; 8. slide groove. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] like Figures 1 to 4 As shown, a pressure sensor with instantaneous pressure buffering includes a pressure sensor body 1, the pressure sensor body 1 includes a mounting seat 2, a PCB board is fixedly mounted inside the mounting seat 2, and a connecting rod 3 is fixedly connected to the top of the mounting seat 2;

[0026] A pressure head 4 is fixedly installed above the connecting rod 3, and a pressure buffer structure 5 is elastically connected to the bottom end of the pressure sensor body 1;

[0027] The pressure buffer structure 5 includes a mounting body 501, which is a hollow cylindrical structure. A mounting plate 502 is fixedly installed on the top surface of the mounting body 501 by bolts, pressure rods 503 are fixedly installed on both sides of the bottom end of the mounting seat 2, and a slide rail 504 matching the pressure rod 503 is fixedly installed at the connection between the mounting body 501 and the pressure rod 503, the slide rail 504 is installed inside the mounting body 501, a compression spring 505 is fixedly installed inside the slide rail 504, a mounting disk is fixedly installed on the top of the compression spring 505, and a damper 506 is fixedly installed in the middle of the mounting body 501.

[0028] A connecting plate is fixedly mounted on the end of the pressure rod 503, and the mounting plate is fixedly mounted on the bottom end surface of the connecting plate by bolts.

[0029] Embodiment 2

[0030] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0031] A mounting structure 6 is slidably installed on the outer side of the connecting rod 3, and the mounting structure 6 includes two symmetrically arranged arc rings 601, and connecting plates 602 are slidably installed at the corresponding positions of the two arc rings 601. Elastic ropes 603 are arranged on both sides of the connecting plate 602, and the two ends of the elastic rope 603 are respectively installed on the same side of the arc ring 601. The two arc rings 601 are connected together by the elastic rope 603 and the connecting plate 602, and the elasticity of the elastic rope 603 itself enables the arc ring 601 to always fit on the outer side of the connecting rod 3, thereby achieving a better support and installation effect for the pressure sensor body 1.

[0032] An arc groove 604 matching the connecting plate 602 is provided at the connection between the arc ring 601 and the connecting plate 602. The arc groove 604 is provided inside the arc ring 601. The arc groove 604 facilitates the sliding effect of the connecting plate 602 and increases the size of the active diameter of the arc ring 601, making it easier for it to be mounted on pressure sensor bodies 1 of different sizes.

[0033] The connecting plate 602 is made of a flexible metal material, which can better adapt to the installation of pressure sensor bodies 1 of different diameters.

[0034] A slider 7 is fixedly installed on one side of the arc ring 601 close to the connecting rod 3, and a slide groove 8 matching the slider 7 is provided at the connection between the connecting rod 3 and the slider 7. The slide groove 8 is provided on the connecting rod 3, and the slider 7 and the slide groove 8 facilitate the connection and sliding effect between the pressure sensor body 1 and the arc ring 601.

[0035] A rubber pad is fixedly installed on the top surface of the arc ring 601, and a mounting opening is opened on the surface of the arc ring 601. The rubber pad can protect the arc ring 601 and the pressure head 4, and the mounting opening is convenient for installing a fixed rod to fix the pressure sensor body 1.

[0036] Working principle: First, install the pressure buffer structure 5 on the object where the pressure sensor body 1 is to be installed, then install the pressure rod 503 under the mounting seat 2 of the pressure sensor body 1 and the mounting plate bolts above the compression spring 505, and then install the mounting plate 502 on the top of the mounting seat 2. At the same time, insert the slider 7 and the arc ring 601 into the slide groove 8 on both sides of the upper connecting rod 3. During the installation of the arc ring 601, insert the connecting plate 602 into the arc groove 604 inside the other set of arc rings 601, so that the two arc rings 601 can be moved in The connection is then made, and then a fixed object is inserted into the installation opening opened on the surface of the arc ring 601, and the arc ring 601 is allowed to support the connecting rod 3. Then during use, when the pressure sensor body 1 is subjected to excessive pressure instantaneously, its mounting seat 2 will press down the pressure rod 503, and the pressure rod 503 will press down the compression spring 505. In the process of the mounting seat 2 being pressed down, the damper 506 inside the mounting body 501 will also provide a certain buffering force to the mounting seat 2, thereby reducing the instantaneous pressure received by the pressure sensor body 1 and reducing the loss of the pressure sensor body 1.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pressure sensor with instantaneous pressure buffer, comprising a pressure sensor body (1), characterized in that: The pressure sensor body (1) comprises a mounting seat (2), a PCB board is fixedly mounted inside the mounting seat (2), and a connecting rod (3) is fixedly connected to the top of the mounting seat (2); A pressure head (4) is fixedly mounted above the connecting rod (3), and a pressure buffer structure (5) is elastically connected to the bottom end of the pressure sensor body (1); The pressure buffer structure (5) comprises a mounting body (501), the mounting body (501) being a hollow cylindrical structure, the top surface of the mounting body (501) being fixedly mounted with a mounting plate (502) by means of bolts, pressure rods (503) being fixedly mounted on both sides of the bottom end of the mounting seat (2), and a slide rail (504) matching the pressure rod (503) being fixedly mounted at the connection between the mounting body (501) and the pressure rod (503), the slide rail (504) being mounted inside the mounting body (501), a compression spring (505) being fixedly mounted inside the slide rail (504), a mounting plate being fixedly mounted on the top end of the compression spring (505), and a damper (506) being fixedly mounted in the middle of the mounting body (501).

2. A pressure sensor with instantaneous pressure buffer according to claim 1, characterized in that: A connecting plate is fixedly mounted on the end of the pressure rod (503), and the mounting plate is fixedly mounted on the bottom end surface of the connecting plate by means of bolts.

3. The pressure sensor with instantaneous pressure buffer according to claim 1, characterized in that: A mounting structure (6) is slidably mounted on the outer side of the connecting rod (3), the mounting structure (6) comprising two symmetrically arranged arcuate rings (601), connecting plates (602) are slidably mounted at corresponding positions of the two arcuate rings (601), elastic ropes (603) are arranged on both sides of the connecting plate (602), and both ends of the elastic rope (603) are respectively mounted on the same side of the arcuate ring (601).

4. The pressure sensor with instantaneous pressure buffer according to claim 3, characterized in that: An arc-shaped groove (604) matching the connecting plate (602) is provided at the connection point between the arc-shaped ring (601) and the connecting plate (602), and the arc-shaped groove (604) is provided inside the arc-shaped ring (601).

5. The pressure sensor with instantaneous pressure buffer according to claim 3, characterized in that: The connecting plate (602) is made of flexible metal.

6. The pressure sensor with instantaneous pressure buffer according to claim 3, characterized in that: A sliding block (7) is fixedly mounted on one side of the arc ring (601) close to the connecting rod (3), and a sliding groove (8) matching the sliding block (7) is provided at the connection between the connecting rod (3) and the sliding block (7), and the sliding groove (8) is provided on the connecting rod (3).

7. The pressure sensor with instantaneous pressure buffer according to claim 3, characterized in that: A rubber pad is fixedly mounted on the top surface of the arc-shaped ring (601).

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