High-pressure monocrystalline silicon pressure sensor

Abstract

The utility model relates to the technical field of pressure sensors, in particular to a high-pressure monocrystalline silicon pressure sensor, which comprises a body, a first nut and a second nut are arranged on the surface of the body, a plug-in ring is arranged on the surface of the first nut, a slot is formed in the surface of the second nut, and a cross rod is fixed on the surface of the plug-in ring; the device has the beneficial effects that an inserting ring moves along with a first nut, the first nut drives a transverse rod to move, the transverse rod drives a movable ring to move, the movable ring moves in an open groove and then abuts against the end of a stress plate, the stress plate is inserted into the body under abutting, and an inserting block at the end of the stress plate abuts against the position between threads; the inserting block is inserted into the gap between the thread and the thread on the surface of the body, so that no gap exists between the thread and the thread on the surface of the body, loosening and impacting between the threads are prevented, and breakage of the weld joint is further prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure sensor technical field, concretely is a kind of high-pressure single crystal silicon pressure sensor. BACKGROUND

[0002] Pressure sensor is the device or device that can feel pressure signal and can be converted into usable output electric signal according to certain law.Pressure sensor is usually composed of pressure sensitive element and signal processing unit.

[0003] Traditional single crystal silicon pressure sensor, pressure strength is not enough, all through laser welding or argon arc welding realization, generally bear not big pressure place in process connection and membrane head welding that weld seam, so traditional single crystal silicon pressure sensor in the use process, weld seam is prone to fracture. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high-pressure single crystal silicon pressure sensor to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-pressure single crystal silicon pressure sensor, comprising:

[0006] The surface of the body is provided with a first nut and a second nut, the surface of the first nut is provided with a plug-in ring, the surface of the second nut is provided with a slot, and the surface of the plug-in ring is fixed with a horizontal rod.

[0007] Preferably, the surface of the body is provided with a thread, the second nut and the first nut are screwed on the surface of the body, and the second nut is located outside the weld seam on the surface of the body.

[0008] Preferably, the second nut is fixed with a thread inside, the thread is screwed on the thread surface on the surface of the body, the second nut surface is plugged with a stress plate, the stress plate is provided with multiple groups, and the stress plate can move inside the second nut.

[0009] Preferably, the surface of the second nut is provided with a slot, the slot is provided with a moving ring, the surface of the moving ring is fixed with a horizontal rod, and the slot is fixed with multiple groups.

[0010] Preferably, the moving ring moves with the horizontal rod, and the moving ring is held on the surface of the stress plate after moving, so that the stress plate is plugged into the inside of the second nut.

[0011] Preferably, the end of the stress plate is fixed with a plug-in block, one side of the plug-in block is attached to the surface of the thread, and the plug-in block is located in the gap between the thread and the thread on the surface of the body.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The second nut is screwed at the welding seam on the surface of the body, the second nut is screwed on both sides of the welding seam, and the force is shared, the first nut is screwed, the insertion ring can rotate on the surface of the first nut, the insertion ring moves with the first nut, the first nut drives the horizontal rod to move, the horizontal rod drives the moving ring to move, the moving ring is supported at the end of the stress plate after moving in the slot, the stress plate is inserted into the inside of the body, the insertion block at the end of the stress plate is supported in the position between the threads, the insertion block is inserted into the gap between the threads and the surface threads of the body, so that there is no gap between the threads and the surface threads of the body, preventing the threads from loosening and impacting, and further preventing the welding seam from breaking. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is another perspective structure schematic view of the utility model;

[0016] Figure 3 It is a second nut cross section structure schematic view of the utility model;

[0017] Figure 4 It is Figure 3 It is a structure enlarged schematic view of the middle A.

[0018] In the figure: body 1, first nut 2, second nut 3, moving ring 4, slot 5, horizontal rod 6, insertion ring 7, thread 8, stress plate 9, insertion block 10. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme of the utility model clear, complete description, and the advantage is more clear and clear, the following combining with the drawing to the utility model embodiment carries out further detailed explanation.Should be understood, the specific embodiment described here is a part of the embodiment of the utility model, rather than all the embodiments, only to explain the embodiment of the utility model, and does not limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model.

[0020] Please refer to Figures 1 to 4The utility model provides a technical scheme: a high pressure type monocrystal silicon pressure sensor, it includes: the body 1, the surface of body 1 is provided with screw thread, the second nut 3 and the first nut 2 are screwed on the surface of body 1, the second nut 3 is located the outside of the weld of body 1 surface, the inside fixed thread 8 of second nut 3, the screw thread surface of body 1 is screwed in the thread 8, the surface of second nut 3 is inserted with the force plate 9, the end of force plate 9 is fixed with the plug -in block 10, the surface of plug -in block 10 is pasted with the surface of thread 8, plug -in block 10 is located the gap of thread 8 and the surface screw thread of body 1, force plate 9 is provided with multiple groups, force plate 9 can move in the inside of second nut 3, the surface of second nut 3 is provided with the slot 5, the slot 5 is provided with moving ring 4, moving ring 4 moves along with cross rod 6, after moving ring 4 moves, the surface of force plate 9 is supported, so that force plate 9 is inserted into the inside of second nut 3, the surface of moving ring 4 is fixed with cross rod 6, the slot 5 is fixed with multiple groups, the surface of body 1 is provided with the first nut 2 and the second nut 3, the surface of first nut 2 is provided with the plug -in ring 7, the surface of second nut 3 is provided with the slot 5, the surface of plug -in ring 7 is fixed with cross rod 6, plug -in ring 7 can rotate on the surface of first nut 2, plug -in ring 7 moves along with first nut 2, first nut 2 drives cross rod 6 to move, cross rod 6 drives moving ring 4 to move, after moving ring 4 moves in the slot 5, the end of force plate 9 is supported.

[0021] The second nut 3 is screwed at the weld of body 1 surface, the second nut 3 is screwed at both sides of weld, plays the role of sharing the stress, screws the first nut 2, plug -in ring 7 can rotate on the surface of first nut 2, plug -in ring 7 moves along with first nut 2, first nut 2 drives cross rod 6 to move, cross rod 6 drives moving ring 4 to move, after moving ring 4 moves in the slot 5, the end of force plate 9 is supported, force plate 9 is inserted into the inside of body 1, the plug -in block 10 of force plate 9 end is supported in the position between thread 8, plug -in block 10 is inserted into the gap of thread 8 and the surface screw thread of body 1, so that there is no gap between thread 8 and the surface screw thread of body 1, prevent the loosening impact between screw thread, further prevent the weld fracture.

[0022] Although the above describes the specific embodiments of the present application in order to make the person skilled in the art understand the present application, but the present application is not limited to the scope of the specific embodiments, for the person skilled in the art, as long as all kinds of changes are within the appended claims limit and determine the spirit and scope of the present application, all the application creations of the present application concept are protected.

Claims

1. A high-voltage single-crystal silicon pressure sensor, characterized by: Include: The body (1), the surface of the body (1) is provided with the first nut (2) and the second nut (3), the surface of the first nut (2) is provided with the plug-in ring (7), the surface of the second nut (3) is provided with the slot (5), the surface of the plug-in ring (7) is fixed with the crossbar (6).

2. A high pressure single crystal silicon pressure sensor as claimed in claim 1, wherein: The surface of the body (1) is provided with a thread, the second nut (3) and the first nut (2) are screwed on the surface of the body (1), and the second nut (3) is located outside the weld on the surface of the body (1).

3. A high pressure single crystal silicon pressure sensor as claimed in claim 2, wherein: The inside of the second nut (3) is fixed with a thread (8), the thread (8) is screwed on the threaded surface of the body (1), the surface of the second nut (3) is inserted with a stress plate (9), the stress plate (9) is provided with a plurality of groups, and the stress plate (9) can move in the inside of the second nut (3).

4. A high pressure single crystal silicon pressure sensor as claimed in claim 3, wherein: The surface of the second nut (3) is provided with a slot (5), the slot (5) is provided with a moving ring (4), the surface of the moving ring (4) is fixed with a crossbar (6), and the slot (5) is fixed with a plurality of groups.

5. A high pressure single crystal silicon pressure sensor as claimed in claim 4, wherein: The moving ring (4) moves with the crossbar (6), and the moving ring (4) is supported on the surface of the stress plate (9) after moving, so that the stress plate (9) is inserted into the inside of the second nut (3).

6. A high pressure single crystal silicon pressure sensor as claimed in claim 5, wherein: The end of the stress plate (9) is fixed with an insertion block (10), one side of the insertion block (10) is attached to the surface of the thread (8), and the insertion block (10) is located in the gap between the thread (8) and the threaded surface of the body (1).

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