Detection device for pressure sensor production

Abstract

The utility model relates to the technical field of pressure sensor production, in particular to a detection device for pressure sensor production, which comprises an installation box, a main air inlet pipe, a branch pipe, a pressure relief device, a first air cylinder, a pressing plate, a second air cylinder, a pressurizing seat, a clamping device and a pressure sensor, the branch pipe is fixedly arranged at the top of the main air inlet pipe, the pressure relief device is installed in one side of the installation box, the first air cylinder and the second air cylinder are installed on the inner side of the top of the installation box, the pressing plate is fixed to the telescopic end of the first air cylinder, and the pressurizing seat is fixedly arranged at the telescopic end of the second air cylinder. According to the detection device for pressure sensor production, a plurality of pressure sensors can be installed and fixed at a time, fixation is convenient, air tightness is effectively guaranteed, the pressure sensors are rapidly installed in a pressing and fixing mode, auxiliary pressurization is carried out on a pressing area, after a test is completed, the pressure relief device works, and dismounting work of the pressure sensors is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensor production, in particular to a detection device for pressure sensor production. Background Technique

[0002] The working principle of a digital pressure sensor is that the pressure directly acts on the diaphragm of the sensor, causing the diaphragm to generate a micro-displacement proportional to the medium pressure, causing the resistance of the sensor to change, using an electronic circuit to detect this change, and converting and outputting a digital standard signal corresponding to this pressure.

[0003] In order to detect the accuracy and sensitivity of a pressure sensor, a specific detection device is required. Since the connection of a pressure sensor is generally through a threaded connection, it takes a lot of time to install the sensor during detection. Therefore, the detection device should preferably achieve a quick connection function and ensure the airtightness of the connection position. During detection, the rated air pressure needs to be detected inside the pressure sensor. After detection, the pressure inside the device should be relieved first to facilitate the disassembly of the pressure sensor after detection. Content of the Utility Model

[0004] The utility model aims at the defects in the prior art and provides a detection device for pressure sensor production.

[0005] The utility model is realized by the following technical solutions:

[0006] A detection device for pressure sensor production includes an installation box, a main inlet pipe, branch pipes, a pressure relief device, a first cylinder, a pressing plate, a second cylinder, a pressurizing seat, a clamping device and a pressure sensor. The main inlet pipe is fixed inside the installation box. The branch pipes are fixedly arranged on the top of the main inlet pipe. The pressure relief device is installed inside one side of the installation box. The first cylinder and the second cylinder are installed inside the top of the installation box. The pressing plate is fixed to the telescopic end of the first cylinder. The pressurizing seat is fixedly arranged at the telescopic end of the second cylinder. The clamping device is fixedly arranged inside the top of the installation box. The pressure sensor is clamped inside the top of the clamping device. The clamping device includes an insertion pipe, a sealing gasket ring and a sealing pressing ring. The insertion pipe is fixedly connected to the inside of the top of the installation box. The sealing gasket ring is clamped inside the bottom of the insertion pipe. The sealing pressing ring is clamped inside the top of the insertion pipe.

[0007] In a preferred embodiment of the utility model, the pressure relief device includes a third cylinder, a push plate, a pressure relief pipe and a sealing plug. The third cylinder is installed inside one side of the installation box. The push plate is fixedly arranged at the telescopic end of the third cylinder. The pressure relief pipe is fixedly arranged inside the push plate. The sealing plug is sleeved outside the pressure relief pipe;

[0008] The pressure relief device mainly blocks one end of the main inlet pipe, and after the detection is completed, it is controlled to extend from the inside of one end of the main inlet pipe, so as to achieve pressure relief and facilitate the disassembly of the pressure sensor after detection.

[0009] In a preferred embodiment of the present invention, the end of the main inlet pipe penetrates and extends to the outside of one side of the installation box, one end of the pressure relief pipe is clamped inside one end of the main inlet pipe, and one end of the sealing plug is in contact with the inner side of the push plate.

[0010] In a preferred embodiment of the present invention, pressure relief holes are provided on the surfaces of the pressure relief pipe and the sealing plug;

[0011] The pressure relief holes are mainly convenient for the high-pressure gas inside the main inlet pipe to be discharged. One end of the sealing plug is tapered, making it convenient to be clamped into the main inlet pipe.

[0012] In a preferred embodiment of the present invention, the bottom of the connection end of the pressure sensor is in contact with the top of the sealing gasket ring, and a clamping groove matching with the connection end of the pressure sensor is provided on one side of the pressing plate;

[0013] The clamping groove provided on one side of the pressing plate is convenient for pressing the top of the connection end of the pressure sensor, so that it is tightly fixed inside the top of the clamping device. The bottom of the connection end of the pressure sensor is in close contact with the top of the sealing gasket ring, and the top is in close contact with the top of the sealing pressure ring, thus effectively ensuring airtightness.

[0014] In a preferred embodiment of the present invention, the pressurizing seat is arranged on the outer side of the top of the pressing plate, and two pressure rods are arranged on one side of the pressurizing seat. The two pressure rods on one side of the pressurizing seat are respectively arranged outside both sides of the connection end of the pressure sensor;

[0015] The main function of the pressurizing seat is to prevent the pressing plate from arching and deforming under the influence of the internal air pressure, thus affecting airtightness. The two pressure rods on one side of the pressurizing seat effectively assist in pressurizing both sides of the connection end of the pressure sensor.

[0016] The beneficial effects of the present invention are:

[0017] The detection device for the production of the pressure sensor can install and fix multiple pressure sensors at one time, which is convenient for fixing and effectively ensures airtightness. The pressure sensor is quickly installed by the pressing and fixing method, and the pressing area is assisted in pressurizing. After the test is completed, the pressure relief device works, which is convenient for the disassembly of the pressure sensor. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the detection device for the production of the pressure sensor of the present invention;

[0019] Figure 2 It is a front view structural schematic diagram of the detection device for the production of the pressure sensor of the present invention;

[0020] Figure 3 is a schematic diagram of the internal structure of a detection device for the production of a pressure sensor of the present utility model;

[0021] Figure 4 is a schematic diagram of the structure of a pressure relief device of a detection device for the production of a pressure sensor of the present utility model;

[0022] Figure 5 is a schematic diagram of the structure of a clamping device of a detection device for the production of a pressure sensor of the present utility model.

[0023] In the figure: 1. Installation box; 2. Main inlet pipe; 3. Branch pipe; 4. Pressure relief device; 41. Third cylinder; 42. Push plate; 43. Pressure relief pipe; 44. Sealing plug; 5. First cylinder; 6. Pressing plate; 7. Second cylinder; 8. Pressing seat; 9. Clamping device; 91. Insertion tube; 92. Sealing gasket ring; 93. Sealing pressure ring; 10. Pressure sensor. Specific embodiments

[0024] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the scope of protection of the present utility model more clearly defined. The directional terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., are only references to the directions of the attached drawings. Therefore, the directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model.

[0025] As Figures 1-5 shown, a detection device for the production of a pressure sensor includes an installation box 1, a main inlet pipe 2, a branch pipe 3, a pressure relief device 4, a first cylinder 5, a pressing plate 6, a second cylinder 7, a pressing seat 8, a clamping device 9 and a pressure sensor 10. The main inlet pipe 2 is fixed inside the installation box 1, the branch pipe 3 is fixedly arranged on the top of the main inlet pipe 2, the pressure relief device 4 is installed inside one side of the installation box 1, the first cylinder 5 and the second cylinder 7 are installed inside the top of the installation box 1, the pressing plate 6 is fixed to the telescopic end of the first cylinder 5, the pressing seat 8 is fixedly arranged on the telescopic end of the second cylinder 7, the clamping device 9 is fixedly arranged inside the top of the installation box 1, the pressure sensor 10 is clamped inside the top of the clamping device 9, and the clamping device 9 includes an insertion tube 91, a sealing gasket ring 92 and a sealing pressure ring 93. The insertion tube 91 is fixedly connected to the inside of the top of the installation box 1, the sealing gasket ring 92 is clamped inside the bottom of the insertion tube 91, and the sealing pressure ring 93 is clamped inside the top of the insertion tube 91.

[0026] Specifically, the pressure relief device 4 includes a third cylinder 41, a push plate 42, a pressure relief pipe 43 and a sealing plug 44. The third cylinder 41 is installed inside one side of the installation box 1. The push plate 42 is fixedly arranged at the telescopic end of the third cylinder 41. The pressure relief pipe 43 is fixedly arranged inside the push plate 42. The sealing plug 44 is sleeved outside the pressure relief pipe 43. The end of the total intake pipe 2 penetrates and extends outside one side of the installation box 1. One end of the pressure relief pipe 43 is clamped inside one end of the total intake pipe 2. One end of the sealing plug 44 contacts the inside of the push plate 42. Pressure relief holes are provided on the surfaces of the pressure relief pipe 43 and the sealing plug 44. The bottom of the connection end of the pressure sensor 10 contacts the top of the sealing gasket ring 92. A clamping groove matching with the connection end of the pressure sensor 10 is provided on one side of the pressing plate 6. The pressing seat 8 is arranged outside the top of the pressing plate 6. Two pressure rods are arranged on one side of the pressing seat 8. The two pressure rods on one side of the pressing seat 8 are respectively arranged outside both sides of the connection end of the pressure sensor 10.

[0027] In this embodiment, first, the first cylinder 5 and the second cylinder 7 rise synchronously, lifting the pressing seat 8 fixed to the telescopic end of the first cylinder 5 and the telescopic end of the second cylinder 7. Subsequently, the connection end of the pressure sensor 10 is clamped into the clamping groove on one side of the pressing plate 6 from the side, and the connection end is inserted into the middle of the sealing pressure ring 93 at the top of the insertion pipe 91 in the clamping device 9. At this time, the first cylinder 5 and the second cylinder 7 are controlled to contract, and the pressing plate 6 presses the top of the connection end of the pressure sensor 10, inserting the connection end into the clamping device 9 until the bottom of the connection end is in close contact with the top of the sealing gasket ring 92. At this time, the bottom surface of the operation block at the top of the connection end of the pressure sensor 10 will be in close contact with the top of the sealing pressure ring 93, thus ensuring the sealing effect. The pressing seat 8 presses down synchronously, and the two pressure rods on one side of it respectively act on both sides outside the connection end of the pressure sensor 10, ensuring the pressing effect and preventing high-pressure gas from leaking.

[0028] Further, under the action of the third cylinder 41, the pressure relief device 4 blocks one end of the total intake pipe 2. High-pressure gas is introduced from the other end of the total intake pipe 2 and enters the inside of the clamping device 9 through the branch pipe 3, so that the pressure sensor 10 displays the measured air pressure. Under the same constant pressure, the pressures measured by multiple pressure sensors 10 should be equal to the maintained air pressure value, and the pressure sensors 10 that do not meet the sales requirements can be quickly judged. Subsequently, the third cylinder 41 slowly extends, slowly pulling out the pressure relief pipe 43 and the sealing plug 44 sleeved outside it. After the high-pressure gas kept inside leaks out through the pressure relief holes, the first cylinder 5 and the second cylinder 7 slowly rise synchronously. At this time, the pressure rods on one side of the pressing seat 8 will act on the bottom of the pressure sensor 10, assisting in pulling out the pressure sensor 10 from the clamping device 9, thus facilitating the quick removal of the pressure sensor 10 after detection.

[0029] It should be noted that the parts not involved in the present utility model are the same as or can be implemented by the prior art; various drives in the present utility model can be implemented by corresponding power structures such as air cylinders, oil cylinders, electric cylinders, motors, etc. in cooperation with connecting rods, guide rods, etc., and are not limited to the descriptions in the specification and the structures in the drawings.

[0030] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "setting", "provided with", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The above-described embodiments only represent several implementation manners of the present utility model, and the descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A pressure sensor production detection device, comprising an installation box (1), a main air intake pipe (2), a branch pipe (3), a pressure relief device (4), a first cylinder (5), a pressure plate (6), a second cylinder (7), a pressure seat (8), a clamping device (9) and a pressure sensor (10), characterized in that: The main air intake pipe (2) is fixed inside the installation box (1), the branch pipe (3) is fixedly arranged on the top of the main air intake pipe (2), the pressure relief device (4) is installed inside one side of the installation box (1), the first cylinder (5) and the second cylinder (7) are installed on the inner side of the top of the installation box (1), the pressure plate (6) is fixed to the telescopic end of the first cylinder (5), the pressure seat (8) is fixedly arranged on the telescopic end of the second cylinder (7), the clamping device (9) is fixedly arranged on the inner side of the top of the installation box (1), and the pressure sensor (10) is clamped on the inner side of the top of the clamping device (9); The clamping device (9) comprises an insert tube (91), a sealing gasket ring (92) and a sealing pressure ring (93); the insert tube (91) is fixedly connected to the inner side of the top of the installation box (1); the sealing gasket ring (92) is clamped on the inner side of the bottom of the insert tube (91); and the sealing pressure ring (93) is clamped on the inner side of the top of the insert tube (91).

2. The pressure sensor production detection device according to claim 1, characterized in that: The pressure relief device (4) comprises a third cylinder (41), a push plate (42), a pressure relief pipe (43) and a sealing plug (44); the third cylinder (41) is installed inside one side of the installation box (1); the push plate (42) is fixedly arranged at the telescopic end of the third cylinder (41); the pressure relief pipe (43) is fixedly arranged on the inner side of the push plate (42); and the sealing plug (44) is sleeved on the outer side of the pressure relief pipe (43).

3. The pressure sensor production detection device according to claim 2, characterized in that: The end of the main air intake pipe (2) penetrates and extends to the outside of one side of the installation box (1), one end of the pressure relief pipe (43) is clamped inside one end of the main air intake pipe (2), and one end of the sealing plug (44) contacts the inner side of the push plate (42).

4. The pressure sensor production detection device according to claim 2, characterized in that: The pressure relief pipe (43) and the sealing plug (44) are provided with pressure relief holes on their surfaces.

5. The pressure sensor production detection device according to claim 1, characterized in that: The bottom of the connection end of the pressure sensor (10) contacts the top of the sealing gasket ring (92), and a slot matching the connection end of the pressure sensor (10) is provided on one side of the pressure plate (6).

6. The pressure sensor production detection device according to claim 1, characterized in that: The pressurizing seat (8) is arranged on the outside of the top of the pressure plate (6), and two pressure rods are arranged on one side of the pressurizing seat (8). The two pressure rods on one side of the pressurizing seat (8) are respectively arranged on the outside of both sides of the connection end of the pressure sensor (10).

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