SOI pressure strain gauge

Abstract

The utility model relates to an SOI pressure strain gauge which comprises a pressure strain gauge body, a rotating ring is movably installed inside the pressure strain gauge body, a functional block is fixedly installed outside the rotating ring, a deflector rod is fixedly installed outside the rotating ring, a fixing rod is fixedly installed inside the pressure strain gauge body, and the functional block and the deflector rod are fixedly installed inside the pressure strain gauge body. A fixing ring is fixedly installed outside the fixing rod, an insertion rod is movably installed in the pressure strain gauge body, and an insertion groove is formed in the outer portion of the rotating ring. According to the SOI pressure strain gauge, after a data transmission line is connected with a pressure sensor probe, a poking rod is poked to drive a rotating ring to rotate, a functional block moves and gets close to a movable rod, and after the movable rod is extruded by the functional block, a spring is contracted, and a clamping plate gets close to the outside of the data transmission line; and after the three clamping plates are all attached to the outer surface of the data transmission line, the effect of fixing the data transmission line can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure strain gauges, in particular to an SOI pressure strain gauge. Background Art

[0002] The strain sensor is a sensor based on measuring the strain generated by the deformation of an object under force. The strain pressure sensor is a sensing device that uses elastic sensitive elements and strain gauges to convert the measured pressure into a corresponding change in resistance value. According to the different structures of the elastic sensitive elements, the strain pressure sensors can be roughly divided into four types: strain tube type, diaphragm type, strain beam type and combined type.

[0003] There is a certain space between the data transmission line and the strain type pressure sensor inside the existing strain type pressure sensor, which will cause the data transmission line to shake in the space. When the strain type pressure sensor is in use, the data transmission line is easily affected by the gravity of the pressure sensing probe, causing the connection between the data transmission line and the pressure sensing probe to be pulled and broken, thereby causing poor contact of the internal circuit of the pressure sensing probe during operation. Therefore, an SOI pressure strain gauge is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an SOI pressure strain gauge, which has the advantages of fixing the data transmission line, etc., and solves the problem that there is a certain space between the data transmission line and the strain type pressure sensor inside the existing strain type pressure sensor, which causes the data transmission line to shake in the space. When the strain type pressure sensor is in use, the data transmission line is easily affected by the gravity of the pressure sensing probe, resulting in the connection between the data transmission line and the pressure sensing probe being pulled and broken, thereby causing the internal circuit of the pressure sensing probe to have poor contact during operation.

[0005] To achieve the above object, the utility model provides the following technical solutions: an SOI pressure strain gauge, comprising a pressure strain gauge body, a power plug connector is arranged on the top of the pressure strain gauge body, a pressure sensor probe is arranged on the bottom of the pressure strain gauge body, a data transmission line is arranged inside the pressure strain gauge body, and a protective structure is arranged inside the pressure strain gauge body;

[0006] The protective structure includes a rotating ring, a functional block, a lever, a fixed rod, a fixed ring, an insertion rod, a slot, a movable rod, a splint, a fixed plate and a spring. The pressure strain gauge body is movably installed with a rotating ring inside, the functional block is fixedly installed outside the rotating ring, the lever is fixedly installed outside the rotating ring, the fixed rod is fixedly installed inside the pressure strain gauge body, the fixed ring is fixedly installed outside the fixed rod, the insertion rod is movably installed inside the pressure strain gauge body, a slot is opened on the outside of the rotating ring, the movable rod is movably installed inside the fixed ring, the splint is fixedly installed outside the movable rod, the fixed plate is fixedly installed outside the movable rod, and the spring is sleeved on the outside of the movable rod.

[0007] Furthermore, the rotating ring is sleeved on the outside of the fixed ring, and the functional block is close to the fixed ring.

[0008] Furthermore, the shifting rod penetrates the pressure strain gauge body and is movably connected to the pressure strain gauge body, and the inserting rod penetrates the pressure strain gauge body and extends into the interior of the pressure strain gauge body.

[0009] Furthermore, the insertion rod is plugged into the slot, and the fixing rod is located below the rotating circle.

[0010] Furthermore, the movable rod passes through the fixing ring and is movably connected to the fixing ring, the clamping plate is located outside the fixing ring, and the clamping plate is close to the data transmission line.

[0011] Furthermore, the fixing plate and the spring are both located inside the fixing ring, and the number of the clamping plates is three.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The SOI pressure strain gauge, when the data transmission line is connected to the pressure sensor probe, the lever is pushed to drive the rotating circle to rotate, and the rotating circle moves through the functional block and approaches the movable rod. When the movable rod is squeezed by the functional block, the spring will contract and the clamping plate will approach the outside of the data transmission line until the three clamping plates are in contact with the surface of the data transmission line, so that the data transmission line can be fixed. The plug rod is pulled out to plug the plug rod into the slot, so that the position of the rotating circle can be fixed, so that the clamping plate always keeps clamping the data transmission line, thereby preventing the connection between the pressure sensor probe and the data transmission line from being broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the structural plan of the utility model;

[0015] Figure 2 This is a top view of the structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0017] In the figure: 1. Pressure strain gauge body; 2. Power plug connector; 3. Pressure sensor probe; 4. Data transmission line; 5. Protection structure; 501. Rotating circle; 502. Function block; 503. Push rod; 504. Fixed rod; 505. Fixed circle; 506. Insert rod; 507. Slot; 508. Movable rod; 509. Clamp; 510. Fixed plate; 511. Spring. 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 1-3 In this embodiment, an SOI pressure strain gauge includes a pressure strain gauge body 1, a power plug connector 2 is arranged on the top of the pressure strain gauge body 1, a pressure sensor probe 3 is arranged on the bottom of the pressure strain gauge body 1, a data transmission line 4 is arranged inside the pressure strain gauge body 1, and a protective structure 5 is arranged inside the pressure strain gauge body 1.

[0020] The protective structure 5 includes a rotating circle 501, a functional block 502, a lever 503, a fixed rod 504, a fixed circle 505, an insertion rod 506, a slot 507, a movable rod 508, a splint 509, a fixed plate 510 and a spring 511. The rotating circle 501 is movably installed inside the pressure strain gauge body 1, the functional block 502 is fixedly installed outside the rotating circle 501, the lever 503 is fixedly installed outside the rotating circle 501, the fixed rod 504 is fixedly installed inside the pressure strain gauge body 1, the fixed circle 505 is fixedly installed outside the fixed rod 504, the insertion rod 506 is movably installed inside the pressure strain gauge body 1, a slot 507 is provided outside the rotating circle 501, the movable rod 508 is movably installed inside the fixed circle 505, the splint 509 is fixedly installed outside the movable rod 508, the fixed plate 510 is fixedly installed outside the movable rod 508, and the spring 511 is sleeved outside the movable rod 508.

[0021] exist Figure 2 In the present invention, SOI plays an insulating role in the pressure strain gauge body 1. Since both SOI and the pressure strain gauge body 1 are prior arts, they are not described in detail in the technical solution.

[0022] exist Figure 2 In the embodiment, the range of movement of the lever 503 is limited by the groove provided on the outside of the pressure strain gauge body 1 . The size of the groove determines the range of rotation of the rotating circle 501 , so that the functional block 502 can be perfectly fitted with the movable rod 508 .

[0023] exist Figure 2 In the embodiment, a slide groove is provided inside the pressure strain gauge body 1, and a slider is fixedly installed outside the rotating circle 501. The slider and the slide groove are slidably connected, so no deviation occurs when the rotating circle 501 rotates.

[0024] In summary, for the SOI pressure strain gauge, after the data transmission line 4 is connected to the pressure sensor probe 3, the lever 503 is toggled to drive the rotating circle 501 to rotate, and the rotating circle 501 moves through the functional block 502 and approaches the movable rod 508. When the movable rod 508 is squeezed by the functional block 502, the spring 511 will contract and the clamping plate 509 will approach the outside of the data transmission line 4, until the three clamping plates 509 are in contact with the surface of the data transmission line 4, the data transmission line 4 can be fixed. The plug rod 506 is pulled out to plug the plug rod 506 into the slot 507, and the position of the rotating circle 501 can be fixed. The clamping plate 509 always keeps clamping the data transmission line 4 to prevent the connection between the pressure sensor probe 3 and the data transmission line 4 from being broken, and solves the problem that there is a certain space between the data transmission line 4 and the strain type pressure sensor inside the existing strain type pressure sensor, which causes the data transmission line 4 to shake in the space. When the strain type pressure sensor is in use, the data transmission line 4 is easily affected by the gravity of the pressure sensing probe, causing the connection between the data transmission line 4 and the pressure sensing probe to be pulled and broken, thereby causing the internal circuit of the pressure sensing probe to have poor contact during operation.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A SOI pressure strain gauge, comprising a pressure strain gauge body (1), characterized in that: A power plug connector (2) is arranged on the top of the pressure strain gauge body (1), a pressure sensor probe (3) is arranged on the bottom of the pressure strain gauge body (1), a data transmission line (4) is arranged inside the pressure strain gauge body (1), and a protective structure (5) is arranged inside the pressure strain gauge body (1); The protective structure (5) comprises a rotating circle (501), a functional block (502), a lever (503), a fixed rod (504), a fixed circle (505), an insertion rod (506), a slot (507), a movable rod (508), a clamping plate (509), a fixed plate (510) and a spring (511); the rotating circle (501) is movably installed inside the pressure strain gauge body (1); the functional block (502) is fixedly installed outside the rotating circle (501); the lever (503) is fixedly installed outside the rotating circle (501); the pressure strain gauge body (1) A fixed rod (504) is fixedly installed inside, a fixed ring (505) is fixedly installed outside the fixed rod (504), an insertion rod (506) is movably installed inside the pressure strain gauge body (1), a slot (507) is opened on the outside of the rotating circle (501), a movable rod (508) is movably installed inside the fixed ring (505), a clamping plate (509) is fixedly installed outside the movable rod (508), a fixed plate (510) is fixedly installed outside the movable rod (508), and a spring (511) is sleeved on the outside of the movable rod (508).

2. The SOI pressure strain gauge according to claim 1, characterized in that: The rotating circle (501) is sleeved on the outside of the fixed circle (505), and the functional block (502) is close to the fixed circle (505).

3. The SOI pressure strain gauge according to claim 1, characterized in that: The shifting rod (503) passes through the pressure strain gauge body (1) and is movably connected to the pressure strain gauge body (1), and the inserting rod (506) passes through the pressure strain gauge body (1) and extends into the interior of the pressure strain gauge body (1).

4. The SOI pressure strain gauge according to claim 1, characterized in that: The insertion rod (506) is plugged into the slot (507), and the fixing rod (504) is located below the rotating circle (501).

5. The SOI pressure strain gauge according to claim 1, characterized in that: The movable rod (508) passes through the fixing ring (505) and is movably connected to the fixing ring (505); the clamping plate (509) is located outside the fixing ring (505); and the clamping plate (509) is close to the data transmission line (4).

6. The SOI pressure strain gauge according to claim 1, characterized in that: The fixing plate (510) and the spring (511) are both located inside the fixing ring (505), and the number of the clamping plates (509) is three.

Images