Damage-free sealing structure for testing pressure sensor

Abstract

The utility model relates to the technical field of sensors, and discloses a non-destructive sealing structure for testing a pressure sensor, which comprises a base, the top of the base is fixedly connected with a galvanized gasket, the top of the galvanized gasket is fixedly connected with a mounting ring, and a transition mechanism is arranged in the mounting ring. And the transition mechanism is used for protecting the sensor shell. The transition mechanism comprises a brass screw rod, the brass screw rod is in threaded connection with the interior of the mounting ring, the top of the brass screw rod is fixedly connected with a brass thread sleeve, a fastening mechanism is arranged outside the brass thread sleeve, and the fastening mechanism is used for tightening the brass thread sleeve. The brass screw rod is installed in the installation ring through the brass threaded sleeve, the hexagonal bolt is screwed into the brass threaded sleeve through the hexagonal sleeve, the pressure sensor is placed in the hexagonal sleeve, the sealing sleeve is arranged outside the pressure sensor in a sleeving mode through the sealing bolt, the sealing sleeve is screwed tightly, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a damage-free sealing structure for pressure sensor testing. Background Art

[0002] A pressure sensor test seal is a special structure used during pressure sensor testing to ensure the sealing of the test environment and prevent external factors from interfering with the test results. This structure typically includes considerations such as sealing materials, sealing methods, and sealing design.

[0003] There are two main sealing methods: mechanical and chemical. Mechanical seals typically use bolts, gaskets, and other methods to achieve a seal through physical compression. Chemical seals utilize a chemical reaction between the sealing material and the measured medium, forming a protective film to achieve a sealing effect.

[0004] In the prior art, when a sealing structure for testing a pressure sensor is sealed using a mechanical seal, the stainless steel housing of the pressure sensor is often subjected to force during the sealing and tightening process, resulting in surface damage, which damages the pressure sensor and reduces the practicality of the device. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a damage-free sealing structure for pressure sensor testing, which aims to improve the problem that most of the sealing structures for pressure sensor testing in the existing technology will cause the stainless steel shell of the pressure sensor to be affected by force during the sealing and tightening process, resulting in surface damage to the pressure sensor and damage to the device, and the low practicality of the device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a damage-free sealing structure for testing a pressure sensor, comprising a base, a galvanized washer is fixedly connected to the top of the base, a mounting ring is fixedly connected to the top of the galvanized washer, a transition mechanism is provided inside the mounting ring, and the transition mechanism is used to protect the sensor housing.

[0007] As a further description of the above technical solution:

[0008] The transition mechanism includes a brass screw, which is threadedly connected to the inside of the mounting ring. The top of the brass screw is fixedly connected to a brass screw sleeve. A fastening mechanism is provided on the outside of the brass screw sleeve, and the fastening mechanism is used to tighten the brass screw sleeve.

[0009] As a further description of the above technical solution:

[0010] The fastening mechanism includes a hexagonal sleeve, which is slidably connected to the outside of the brass nut. The top of the hexagonal sleeve is fixedly connected with a hexagonal bolt. A sealing mechanism is provided inside the hexagonal bolt for sealing the connection of the hexagonal bolt.

[0011] As a further description of the above technical solution:

[0012] The sealing mechanism comprises a sealing sleeve, which is threadedly connected to the interior of the hexagonal bolt, and the top of the sealing sleeve is fixedly connected to the sealing bolt.

[0013] As a further description of the above technical solution:

[0014] The bottom of the sealing bolt is fixedly connected with a rubber sealing ring, and the bottom of the rubber sealing ring abuts against the top of the hexagonal bolt.

[0015] As a further description of the above technical solution:

[0016] The bottom of the brass screw sleeve abuts against the top of the mounting ring.

[0017] As a further description of the above technical solution:

[0018] The bottom of the hexagonal bolt abuts against the top of the brass nut.

[0019] As a further description of the above technical solution:

[0020] A sealing strip is provided between the brass screw sleeve and the hexagonal sleeve.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the brass screw is installed inside the mounting ring through the brass screw sleeve, the hexagonal bolt is screwed into the brass screw sleeve through the hexagonal sleeve, the pressure sensor is placed in the hexagonal sleeve, and the sealing sleeve is sleeved on the outside of the pressure sensor through the sealing bolt and tightened, thereby achieving the effect of protecting the stainless steel shell of the pressure sensor through the brass screw sleeve. At the same time, the hexagonal sleeve is used as a transition to avoid direct contact between tools and the stainless steel surface, further preventing surface damage and improving the practicality of the device.

[0023] 2. In the present invention, when the sealing sleeve and the hexagonal bolt are in contact, the rubber sealing ring will fit with the bottom of the sealing sleeve and the top of the hexagonal bolt respectively, making the seal more secure and avoiding deviation in the test results due to insufficient connection during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a three-dimensional diagram of a non-destructive sealing structure for pressure sensor testing proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of a base of a non-destructive sealing structure for pressure sensor testing proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of a brass sleeve with a non-destructive sealing structure for pressure sensor testing proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of a hexagonal sleeve with a non-destructive sealing structure for pressure sensor testing proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of a sealing sleeve with a non-destructive sealing structure for pressure sensor testing proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of a sealing ring with a damage-free sealing structure for pressure sensor testing proposed by the present invention.

[0030] Legend:

[0031] 1. Base; 2. Galvanized washer; 3. Mounting ring; 4. Brass screw; 5. Brass threaded sleeve; 6. Hexagonal sleeve; 7. Hexagonal bolt; 8. Sealing sleeve; 9. Sealing bolt; 10. Rubber sealing ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 3The present invention provides an embodiment of a non-destructive sealing structure for testing a pressure sensor, comprising a base 1, which supports an upper structure and is characterized in that a galvanized washer 2 is fixedly connected to the top of the base 1, which serves to connect to the upper structure; a mounting ring 3 is fixedly connected to the top of the galvanized washer 2, which serves to mount the sensor; a transition mechanism is provided inside the mounting ring 3, which protects the sensor housing; the transition mechanism includes a brass screw 4, which serves to connect to a brass nut 5; the brass screw 4 is threadedly connected to the inside of the mounting ring 3; a brass nut 5 is fixedly connected to the top of the brass screw 4, which protects the sensor housing; and a fastening mechanism is provided outside the brass nut 5, which is used to tighten the brass nut 5. The fastening mechanism includes a hexagonal sleeve 6, which serves to connect the hexagonal bolt 7. The hexagonal sleeve 6 is slidably connected to the outside of the brass nut 5. The top of the hexagonal sleeve 6 is fixedly connected with the hexagonal bolt 7. The hexagonal bolt 7 serves to protect the sensor housing. A sealing mechanism is provided inside the hexagonal bolt 7, which is used to seal the connection of the hexagonal bolt 7.

[0034] Reference Figure 4-Figure 6 The sealing mechanism includes a sealing sleeve 8, which connects to a sealing bolt 9. The sealing sleeve 8 is threadedly connected to the inside of the hexagonal bolt 7. The top of the sealing sleeve 8 is fixedly connected to the sealing bolt 9, which seals the sensor housing. The bottom of the sealing bolt 9 is fixedly connected to a rubber sealing ring 10, which enhances the sealing effect. The bottom of the rubber sealing ring 10 abuts the top of the hexagonal bolt 7, the bottom of the brass screw sleeve 5 abuts the top of the mounting ring 3, and the bottom of the hexagonal bolt 7 abuts the top of the brass screw sleeve 5. A sealing strip is provided between the brass screw sleeve 5 and the hexagonal sleeve 6.

[0035] Working principle: Install the brass screw 4 inside the mounting ring 3 through the brass screw sleeve 5, screw the hexagonal bolt 7 into the brass screw sleeve 5 through the hexagonal sleeve 6, place the pressure sensor in the hexagonal sleeve 6, and put the sealing sleeve 8 on the outside of the pressure sensor through the sealing bolt 9 and tighten it.

[0036] When the sealing sleeve 8 and the hexagonal bolt 7 are in contact, the rubber sealing ring 10 will fit respectively with the bottom of the sealing sleeve 8 and the top of the hexagonal bolt 7, making the seal more secure.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A non-destructive sealing structure for pressure sensor testing, comprising a base (1), characterized in that: A galvanized washer (2) is fixedly connected to the top of the base (1), a mounting ring (3) is fixedly connected to the top of the galvanized washer (2), and a transition mechanism is provided inside the mounting ring (3), and the transition mechanism is used to protect the sensor housing.

2. The non-destructive sealing structure for pressure sensor testing according to claim 1, characterized in that: The transition mechanism comprises a brass screw (4), the brass screw (4) being threadedly connected to the inside of the mounting ring (3), a brass screw sleeve (5) being fixedly connected to the top of the brass screw (4), and a fastening mechanism being provided on the outside of the brass screw sleeve (5), and the fastening mechanism being used to tighten the brass screw sleeve (5).

3. The non-destructive sealing structure for pressure sensor testing according to claim 2, characterized in that: The fastening mechanism comprises a hexagonal sleeve (6), the hexagonal sleeve (6) is slidably connected to the outside of the brass screw sleeve (5), the top of the hexagonal sleeve (6) is fixedly connected to a hexagonal bolt (7), and a sealing mechanism is provided inside the hexagonal bolt (7), and the sealing mechanism is used to seal the hexagonal bolt (7).

4. The non-destructive sealing structure for pressure sensor testing according to claim 3, characterized in that: The sealing mechanism comprises a sealing sleeve (8), the sealing sleeve (8) being threadedly connected to the interior of the hexagonal bolt (7), and the top of the sealing sleeve (8) being fixedly connected to a sealing bolt (9).

5. The non-destructive sealing structure for pressure sensor testing according to claim 4, characterized in that: The bottom of the sealing bolt (9) is fixedly connected to a rubber sealing ring (10), and the bottom of the rubber sealing ring (10) abuts against the top of the hexagonal bolt (7).

6. The non-destructive sealing structure for pressure sensor testing according to claim 2, characterized in that: The bottom of the brass screw sleeve (5) abuts against the top of the mounting ring (3).

7. The non-destructive sealing structure for pressure sensor testing according to claim 3, characterized in that: The bottom of the hexagonal bolt (7) abuts against the top of the brass screw sleeve (5).

8. The non-destructive sealing structure for pressure sensor testing according to claim 4, characterized in that: A sealing strip is provided between the brass screw sleeve (5) and the hexagonal sleeve (6).

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