Pressure sensor anti-falling glass base

Abstract

The utility model discloses an anti-drop glass base of a pressure sensor, which relates to the technical field of pressure sensors and comprises a glass base shell, a mounting hole is arranged at the top end of the glass base shell, a grid surface is embedded in the middle of the bottom end of the mounting hole, and a glass edge cover is in threaded connection with the top of the glass base shell. The middle of the glass edge cover is provided with a glass middle cover, the bottom end of the glass middle cover is connected with a spring, the pressure sensor chip is bonded to the grid surface, the glass middle cover is installed in the middle of the glass edge cover in an extrusion mode, and then the bottoms of the two sets of rubber columns abut against the pressure sensor chip. The glass edge cover is pressed downwards to enable the spring to contract, the glass edge cover is rotated to be installed on the top of the glass base shell, the two sets of rubber columns abut against the pressure sensor chip all the time through the plane bearing, the structure applies thrust to the two sets of rubber columns through the spring, and therefore the position of the pressure sensor chip is fixed. And the phenomenon of falling-off movement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, in particular to an anti-falling glass base for a pressure sensor. Background Art

[0002] After searching, a glass sealed textured base for a pressure sensor is disclosed (publication number: CN201697746U). In this patent, a textured surface that is bonded to the pressure sensor chip is set in the base shell. However, the precise amount of adhesive determines the adhesion of the pressure sensor chip. If the amount of adhesive is small or the adhesive is oxidized and aged, it is easy to cause the pressure sensor chip to fall off. For this reason, we propose a pressure sensor anti-falling glass base. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an anti-falling glass base for a pressure sensor, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a pressure sensor anti-falling glass base, including a glass base shell with a mounting hole at the top, a mesh surface embedded in the middle of the bottom end of the mounting hole, a glass edge cover threadedly connected to the top of the glass base shell, a glass middle cover is arranged in the middle of the glass edge cover, a spring is connected to the bottom of the spring, a plane bearing is connected to the bottom edge of the plane bearing, and two groups of rubber columns are symmetrically connected to the bottom edge of the plane bearing.

[0005] As a further technical solution of the utility model, the plane bearing is located directly above the textured surface, and the two groups of rubber columns are respectively located above the edges of the textured surface.

[0006] As a further technical solution of the utility model, the middle of the glass base shell is circular and has multiple groups of lead wires arranged at equal intervals, and a glass insulator is commonly connected between each group of the lead wires and the glass base shell.

[0007] As a further technical solution of the utility model, a sealing gasket is arranged between the top end of the glass base shell and the bottom end of the glass edge cover.

[0008] As a further technical solution of the utility model, a rubber sleeve is arranged between the inner annular surface of the glass edge cover and the outer surface of the bottom of the glass middle cover.

[0009] As a further technical solution of the utility model, two groups of grooves are symmetrically formed on the top of the glass middle cover.

[0010] Beneficial Effects

[0011] The utility model provides a pressure sensor anti-falling glass base. Compared with the prior art, it has the following beneficial effects:

[0012] 1. A pressure sensor anti-falling glass base, which is manufactured by bonding a pressure sensor chip to a textured surface, squeezing and installing a glass middle cover in the middle of a glass edge cover, and then abutting the bottoms of two groups of glue columns against the pressure sensor chip, pressing the glass edge cover downward to contract a spring, rotating the glass edge cover to be installed on the top of a glass base shell, and making the two groups of glue columns always abut against the pressure sensor chip through a plane bearing. The structure applies thrust to the two groups of glue columns through a spring, thereby fixing the position of the pressure sensor chip to prevent it from falling off.

[0013] 2. A pressure sensor anti-falling glass base, through two sets of grooves, the glass middle cover, spring, plane bearing and two sets of rubber columns are directly taken out, and then the pressure sensor chip is repaired when it fails. After the repair is completed, the two sets of rubber columns are re-fitted on the pressure sensor chip, and the glass middle cover is pressed and fixed in the middle of the glass edge cover. The structure is relatively easy to disassemble and assemble, and is convenient for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an anti-falling glass base for a pressure sensor;

[0015] Figure 2 A top view of an anti-falling glass base for a pressure sensor;

[0016] Figure 3 for Figure 2 Sectional view of AA.

[0017] In the figure: 1. Glass base shell; 2. Mounting hole; 3. Textured surface; 4. Glass edge cover; 5. Glass middle cover; 6. Spring; 7. Plane bearing; 8. Rubber column; 9. Lead wire; 10. Glass insulator; 11. Sealing gasket; 12. Rubber sleeve; 13. Groove. 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 1-3The utility model provides a technical solution for an anti-falling glass base for a pressure sensor: an anti-falling glass base for a pressure sensor, comprising a glass base shell 1, a mounting hole 2 is opened at the top, a mesh surface 3 is embedded in the middle of the bottom end of the mounting hole 2, a glass edge cover 4 is threadedly connected to the top of the glass base shell 1, a glass middle cover 5 is arranged in the middle of the glass edge cover 4, a spring 6 is connected to the bottom of the spring 6, a plane bearing 7 is connected to the bottom edge of the plane bearing 7, and two groups of rubber columns 8 are symmetrically connected to the bottom edge of the plane bearing 7. The surface bearing 7 is located directly above the textured surface 3, and two groups of rubber columns 8 are respectively located above the edges of the textured surface 3. The middle of the glass base shell 1 is circular and has multiple groups of lead wires 9 arranged at equal intervals. A glass insulator 10 is commonly connected between each group of lead wires 9 and the glass base shell 1. A sealing gasket 11 is arranged between the top of the glass base shell 1 and the bottom of the glass edge cover 4, a rubber sleeve 12 is arranged between the inner annular surface of the glass edge cover 4 and the outer surface of the bottom of the glass middle cover 5, and two groups of grooves 13 are symmetrically opened at the top of the glass middle cover 5.

[0020] It should be noted that the pressure sensor chip is bonded to the textured surface 3, the glass base housing 1 and the glass edge cover 4 are sealed by a sealing gasket 11, and the glass edge cover 4 and the glass middle cover 5 are squeezed and fixed by a rubber sleeve 12 to achieve sealing at the same time.

[0021] The working principle of the utility model is as follows: when in use, the pressure sensor chip is bonded to the textured surface 3, the glass middle cover 5 is squeezed and installed in the middle of the glass edge cover 4, and then the bottoms of the two groups of glue pillars 8 are pressed against the pressure sensor chip, the glass edge cover 4 is pressed downward to shrink the spring 6, and the glass edge cover 4 is rotated and installed on the top of the glass base housing 1, so that the two groups of glue pillars 8 are always pressed against the pressure sensor chip through the plane bearing 7;

[0022] When the pressure sensor chip is being repaired, the glass middle cover 5, the spring 6, the plane bearing 7 and the two groups of rubber columns 8 can be directly taken out through the two groups of grooves 13, and the pressure sensor chip can be repaired. After the repair is completed, the two groups of rubber columns 8 are re-fitted on the pressure sensor chip, and the glass middle cover 5 is pressed and fixed in the middle of the glass edge cover 4.

Claims

1. A pressure sensor anti-drop glass base, comprising a glass base housing (1) with a mounting hole (2) at the top, a mesh surface (3) embedded in the middle of the bottom of the mounting hole (2), characterized in that: The top of the glass base housing (1) is threadedly connected to a glass edge cover (4), a glass middle cover (5) is arranged in the middle of the glass edge cover (4), the bottom end of the glass middle cover (5) is connected to a spring (6), the bottom of the spring (6) is connected to a plane bearing (7), and the bottom edge of the plane bearing (7) is symmetrically connected to two groups of rubber columns (8).

2. The anti-falling glass base for a pressure sensor according to claim 1, characterized in that: The plane bearing (7) is located directly above the textured surface (3), and the two groups of rubber columns (8) are respectively located above the edges of the textured surface (3).

3. The anti-falling glass base for a pressure sensor according to claim 1, characterized in that: The middle of the glass base shell (1) is circular and has multiple groups of lead wires (9) arranged at equal intervals, and a glass insulator (10) is commonly connected between each group of the lead wires (9) and the glass base shell (1).

4. The anti-falling glass base for a pressure sensor according to claim 1, characterized in that: A sealing gasket (11) is provided between the top end of the glass base housing (1) and the bottom end of the glass edge cover (4).

5. The anti-falling glass base for a pressure sensor according to claim 1, characterized in that: A rubber sleeve (12) is provided between the inner annular surface of the glass edge cover (4) and the outer surface of the bottom of the glass middle cover (5).

6. The anti-falling glass base for a pressure sensor according to claim 1, characterized in that: Two groups of grooves (13) are symmetrically formed at the top of the glass middle cover (5).

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