CN114054555B - Capacitive sensor with bending design - Google Patents
Capacitive sensor with bending design Download PDFInfo
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- CN114054555B CN114054555B CN202111335624.5A CN202111335624A CN114054555B CN 114054555 B CN114054555 B CN 114054555B CN 202111335624 A CN202111335624 A CN 202111335624A CN 114054555 B CN114054555 B CN 114054555B
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- 238000005452 bending Methods 0.000 title claims abstract description 173
- 238000009434 installation Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 28
- 239000003990 capacitor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
Abstract
The invention relates to the field of capacitive sensors, in particular to a capacitive sensor with a bending design. The sensor comprises a sensor main body, a bending part and a bending component; the upper end of the bending part is connected with the tail part of the sensor main body, the vertical section at the upper end and the bending section at the lower end; the bending component comprises a mounting piece, a first clamping piece, a second clamping piece and a connecting piece; the connecting piece is arranged in the oil tank through the mounting piece, and meanwhile, the first clamping piece and the second clamping piece are connected. According to the invention, the first clamping ring is matched with the second clamping ring, the designated position of the bending part is clamped and fixed, and the bending degree of the bending part is adjusted, so that the lengths of the bending part and the sensor main body are matched with the oil tanks with different depths, and the detection accuracy is ensured. Through the connecting piece transmission, the upper and lower ends of kink take place to buckle in step, increase the range of buckling, reduce the secondary damage to the oil tank.
Description
Technical Field
The invention relates to the field of capacitive sensors, in particular to a capacitive sensor with a bending design.
Background
The liquid level measuring device is widely applied to aircrafts, ships and the like, is mainly used for measuring the oil level and the water level, and has great significance for the top estimation of the carrying travel and the reasonable arrangement and replenishment of equipment. The liquid level measuring device has various measuring principles and modes, and the main stream means comprise a capacitive sensor, a pressure sensor and the like. The capacitive sensor is a cylindrical capacitor formed by two coaxial aluminum tubes which are insulated from each other, and two metal tubes respectively form two poles of the cylindrical capacitor. When an input signal is applied to two poles of the cylindrical capacitor, an electric field is generated, so that capacitance values are acquired, and when the liquid level in the cylindrical capacitor is different, the output capacitance values are different. The sensor is characterized in that the axial length of the cylindrical polar plate of the sensor is larger than the depth of the measuring area of the oil tank, when an aircraft assembled with the rubber oil tank lands at one moment, the rubber oil tank is subjected to huge impact and can be seriously deformed, and the depth of the measuring area of the rubber oil tank is reduced. And then the cylindrical aluminum tube in the common capacitive sensor pierces the rubber oil tank, so that fuel oil leaks, and secondary explosion of the aircraft is caused.
Disclosure of Invention
Aiming at the problems existing in the background technology, a capacitive sensor with a bending design is provided. According to the invention, the first clamping ring and the second clamping ring are matched to clamp and fix the appointed position of the bending part, and the bending degree of the bending part is adjusted, so that the lengths of the bending part and the sensor main body are matched with the oil tanks with different depths, the detection accuracy is ensured, the bending amplitude is ensured, the direct impact on the oil tank is avoided, and the secondary damage on the oil tank is reduced.
The invention provides a capacitive sensor with a bending design, which comprises a sensor main body, a bending part and a bending component, wherein the sensor main body is provided with a plurality of sensors; the upper end of the bending part is connected with the tail part of the sensing end of the sensor main body, and comprises a vertical section at the upper end and a bending section at the lower end; the bending component comprises a mounting piece, a first clamping piece, a second clamping piece and a connecting piece; the connecting piece is arranged in the oil tank through the mounting piece and is connected with the first clamping piece and the second clamping piece; the first clamping piece is matched with the vertical section; the second clamping piece is matched with the bending section. The first clamping piece comprises a first clamping ring, a first clamping frame, a first elastic rod, a bending frame and a connecting rod; the clamping frame I and the bending frame are arranged in the clamping ring I, and the clamping end and the bending end are opposite; the elastic rod is connected with the first clamping frame and the first clamping ring; the connecting rod is arranged on the first clamping ring in a sliding way, and one end of the connecting rod is connected with the bending frame. The second clamping piece comprises a second clamping ring, a second clamping frame, a second elastic rod and a mounting seat; the second clamping frames are provided with two groups, the second clamping frames are arranged in the second clamping ring, and the clamping ends are opposite; the elastic rod II is connected with the clamping frame II and the clamping ring II; the mounting seat is arranged on the second clamping ring. The connecting piece comprises a mounting frame, a rack, an eccentric wheel, a box body and a pushing plate; a mounting chamber is arranged in the box body; the eccentric wheel is rotatably arranged in the mounting chamber, and one side of the eccentric wheel is provided with a half gear; the upper end of the rack extends into the mounting chamber and is meshed with the half gear, and the lower end of the rack extends out of the box body and is connected with the mounting frame; the mounting frame is rotatably arranged on the mounting seat; the other end of the connecting rod extends into the mounting chamber and is connected with one side of the pushing plate; the other side of the pushing plate is connected with the eccentric wheel in a sliding way.
Preferably, the box body is provided with a sliding block and a first spring; the sliding block is connected with the rack and is simultaneously connected with the wall of the mounting chamber in a sliding way; the upper end of the first spring is connected with the top of the mounting chamber, and the lower end of the first spring is connected with the sliding block.
Preferably, the first clamping frame, the bending frame and the second clamping frame are all arc-shaped structures.
Preferably, the first elastic rod and the second elastic rod have the same structure.
Preferably, the first elastic rod comprises a sliding rod and a second spring; the inner annular wall of the first clamping ring is provided with a mounting groove; one end of the sliding rod is connected with the first clamping frame, and the other end of the sliding rod extends into the mounting groove and is connected with the mounting groove in a sliding manner; the second spring is sleeved on the sliding rod, one end of the second spring is connected with the notch of the mounting groove, and the other end of the second spring is connected with the first clamping frame.
Preferably, the mounting member comprises a mounting plate and a mounting bar; the mounting plate is detachably arranged on the wall of the oil tank; the mounting rod is hinged with the mounting plate and the box body.
Preferably, the upper vertical section of the inner and outer cylindrical pipes is provided with an inner bending groove I and an outer bending groove I respectively; the inner bending groove I and the outer bending groove I are arranged on the same side of the bending frame.
Preferably, the lower bending sections of the inner cylindrical pipe and the outer cylindrical pipe are respectively provided with an inner bending groove II and an outer bending groove II; the inner bending groove II and the outer bending groove II are arranged on the same side of the connecting piece.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the first clamping ring is matched with the second clamping ring, the designated position of the bending part is clamped and fixed, and the bending degree of the bending part is adjusted, so that the lengths of the bending part and the sensor main body are matched with the oil tanks with different depths, and the detection accuracy is ensured. When the oil tank is impacted and deformed, the bending section is tilted, the connecting piece is used for transmission, the mounting rack drives the rack to move upwards, the eccentric wheel rotates, the pushing plate is stressed to move towards the bending part, the upper end and the lower end of the bending part are synchronously bent, the bending amplitude is increased, and secondary damage to the oil tank is avoided. The first elastic rod and the second elastic rod are arranged, the first elastic rod pushes the first clamping ring to move towards the bending frame, and the vertical section is clamped; the elastic rod II pushes the two groups of clamping frames II to close together to clamp the bending section, so that the stability of the position of the bending part is ensured, and the accuracy of the detection effect is ensured. Through setting up interior kink groove first, outer kink groove first, interior kink groove second and outer kink groove second atress, extrusion, whole kink is buckled in certain within range, avoids the direct impact to the oil tank, causes the secondary damage to the oil tank.
Drawings
FIG. 1 is a schematic diagram of an installation state of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a bend portion according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a first engaging member according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a second engaging member according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 3 at A;
FIG. 7 is a schematic view of a mounting member according to an embodiment of the present invention;
fig. 8 is a partial enlarged view at B in fig. 4.
Reference numerals: 1. a sensor body; 2. a bending part; 3. a bending assembly; 4. a mounting member; 5. the first clamping piece is provided with a first clamping piece; 6. a second clamping piece; 7. a connecting piece; 8. the first clamping ring is clamped; 9. the first clamping frame is arranged; 10. an elastic rod I; 11. a bending frame; 12. a connecting rod; 13. a second clamping ring; 14. a second clamping frame; 15. an elastic rod II; 16. a mounting base; 17. a mounting frame; 18. a rack; 19. a half gear; 20. an eccentric wheel; 21. a case body; 22. a pushing plate; 23. a vertical section; 24. bending sections; 25. an inner bending groove I; 26. an outer bending groove I; 27. an outer bending groove II; 28. an inner bending groove II; 29. a slide block; 30. a first spring; 31. a mounting plate; 32. a mounting rod; 33. a slide bar; 34. and a second spring.
Detailed Description
Example 1
As shown in fig. 1-6, the capacitive sensor with bending design provided by the invention comprises a sensor main body 1, a bending part 2 and a bending component 3; the upper end of the bending part 2 is connected with the tail part of the sensing end of the sensor main body 1 and comprises a vertical section 23 at the upper end and a bending section 24 at the lower end; the bending component 3 comprises a mounting piece 4, a first clamping piece 5, a second clamping piece 6 and a connecting piece 7; the connecting piece 7 is arranged in the oil tank through the mounting piece 4 and simultaneously connects the first clamping piece 5 and the second clamping piece 6; the first clamping piece 5 is matched with the vertical section 23; the second clamping piece 6 is matched with the bending section 24. The first clamping piece 5 comprises a first clamping ring 8, a first clamping frame 9, an elastic rod 10, a bending frame 11 and a connecting rod 12; the first clamping frame 9 and the bending frame 11 are arranged in the first clamping ring 8, and the clamping end and the bending end are opposite; the elastic rod I10 is connected with the clamping frame I9 and the clamping ring I8; the connecting rod 12 is slidably arranged on the first clamping ring 8, and one end of the connecting rod is connected with the bending frame 11. The second clamping piece 6 comprises a second clamping ring 13, a second clamping frame 14, a second elastic rod 15 and a mounting seat 16; the second clamping frames 14 are provided with two groups, the second clamping frames 14 of the two groups are arranged in the second clamping ring 13, and the clamping ends are opposite; the second elastic rod 15 is connected with the second clamping frame 14 and the second clamping ring 13; the mounting seat 16 is arranged on the second clamping ring 13. The connecting piece 7 comprises a mounting frame 17, a rack 18, an eccentric wheel 20, a box body 21 and a pushing plate 22; an installation chamber is arranged in the box body 21; the eccentric wheel 20 is rotatably arranged in the mounting chamber, and one side of the eccentric wheel 20 is provided with a half gear 19; the upper end of the rack 18 extends into the mounting chamber and is meshed with the half gear 19, and the lower end of the rack extends out of the box body 21 and is connected with the mounting frame 17; the mounting frame 17 is rotatably arranged on the mounting seat 16; the other end of the connecting rod 12 extends into the installation chamber and is connected with one side of the pushing plate 22; the other side of the push plate 22 is slidably connected to the eccentric 20. The box body 21 is provided with a sliding block 29 and a first spring 30; the sliding block 29 is connected with the rack 18 and is simultaneously connected with the wall of the mounting chamber in a sliding manner; the upper end of the first spring 30 is connected with the top of the installation chamber, and the lower end is connected with the sliding block 29. The first clamping frame 9, the bending frame 11 and the second clamping frame 14 are arc-shaped structures, are clamped and fastened, and have good anti-skid performance.
In this embodiment, the first clamping ring 8 and the second clamping ring 13 are matched to clamp and fix the appointed position of the bending part 2, and the bending degree of the bending part 2 is adjusted, so that the length of the bending part 2 is matched with the oil tanks with different depths, and the detection accuracy is ensured. When the oil tank is impacted and deformed, the bending section 24 is tilted, the connecting piece 7 is used for transmission, the mounting rack 17 drives the rack 18 to move upwards, the eccentric wheel 20 rotates, the pushing plate 22 is forced to move towards the bending part 2, the upper end and the lower end of the bending part 2 are synchronously bent, the bending amplitude is increased, and secondary damage to the oil tank is reduced.
Example two
As shown in fig. 1-6 and 8, the capacitive sensor with the bending design provided by the invention comprises a sensor main body 1, a bending part 2 and a bending component 3; the upper end of the bending part 2 is connected with the tail part of the sensing end of the sensor main body 1 and comprises a vertical section 23 at the upper end and a bending section 24 at the lower end; the bending component 3 comprises a mounting piece 4, a first clamping piece 5, a second clamping piece 6 and a connecting piece 7; the connecting piece 7 is arranged in the oil tank through the mounting piece 4 and simultaneously connects the first clamping piece 5 and the second clamping piece 6; the first clamping piece 5 is matched with the vertical section 23; the second clamping piece 6 is matched with the bending section 24. The first clamping piece 5 comprises a first clamping ring 8, a first clamping frame 9, an elastic rod 10, a bending frame 11 and a connecting rod 12; the first clamping frame 9 and the bending frame 11 are arranged in the first clamping ring 8, and the clamping end and the bending end are opposite; the elastic rod I10 is connected with the clamping frame I9 and the clamping ring I8; the connecting rod 12 is slidably arranged on the first clamping ring 8, and one end of the connecting rod is connected with the bending frame 11. The second clamping piece 6 comprises a second clamping ring 13, a second clamping frame 14, a second elastic rod 15 and a mounting seat 16; the second clamping frames 14 are provided with two groups, the second clamping frames 14 of the two groups are arranged in the second clamping ring 13, and the clamping ends are opposite; the second elastic rod 15 is connected with the second clamping frame 14 and the second clamping ring 13; the mounting seat 16 is arranged on the second clamping ring 13. The connecting piece 7 comprises a mounting frame 17, a rack 18, an eccentric wheel 20, a box body 21 and a pushing plate 22; an installation chamber is arranged in the box body 21; the eccentric wheel 20 is rotatably arranged in the mounting chamber, and one side of the eccentric wheel 20 is provided with a half gear 19; the upper end of the rack 18 extends into the mounting chamber and is meshed with the half gear 19, and the lower end of the rack extends out of the box body 21 and is connected with the mounting frame 17; the mounting frame 17 is rotatably arranged on the mounting seat 16; the other end of the connecting rod 12 extends into the installation chamber and is connected with one side of the pushing plate 22; the other side of the push plate 22 is slidably connected to the eccentric 20. The box body 21 is provided with a sliding block 29 and a first spring 30; the sliding block 29 is connected with the rack 18 and is simultaneously connected with the wall of the mounting chamber in a sliding manner; the upper end of the first spring 30 is connected with the top of the installation chamber, and the lower end is connected with the sliding block 29. The first clamping frame 9, the bending frame 11 and the second clamping frame 14 are arc-shaped structures, are clamped and fastened, and have good anti-skid performance.
The first elastic rod 10 and the second elastic rod 15 have the same structure. The elastic rod I10 comprises a sliding rod 33 and a spring II 34; the inner annular wall of the first clamping ring 8 is provided with a mounting groove; one end of the sliding rod 33 is connected with the first clamping frame 9, and the other end of the sliding rod extends into the mounting groove and is connected with the mounting groove in a sliding way; the second spring 34 is sleeved on the sliding rod 33, one end of the second spring is connected with the notch of the mounting groove, and the other end of the second spring is connected with the first clamping frame 9. The first elastic rod 10 pushes the first clamping ring 8 to move towards the bending frame 11 so as to clamp the vertical section 23; the elastic rod II 15 pushes the two groups of clamping frames II 14 to close, and clamps the bending section 24, so that the stability of the position of the bending part 2 is ensured, and the accuracy of the detection effect is ensured.
Example III
As shown in fig. 1-7, the capacitive sensor with bending design provided by the invention comprises a sensor main body 1, a bending part 2 and a bending component 3; the upper end of the bending part 2 is connected with the tail part of the sensing end of the sensor main body 1 and comprises a vertical section 23 at the upper end and a bending section 24 at the lower end; the bending component 3 comprises a mounting piece 4, a first clamping piece 5, a second clamping piece 6 and a connecting piece 7; the connecting piece 7 is arranged in the oil tank through the mounting piece 4 and simultaneously connects the first clamping piece 5 and the second clamping piece 6; the first clamping piece 5 is matched with the vertical section 23; the second clamping piece 6 is matched with the bending section 24. The first clamping piece 5 comprises a first clamping ring 8, a first clamping frame 9, an elastic rod 10, a bending frame 11 and a connecting rod 12; the first clamping frame 9 and the bending frame 11 are arranged in the first clamping ring 8, and the clamping end and the bending end are opposite; the elastic rod I10 is connected with the clamping frame I9 and the clamping ring I8; the connecting rod 12 is slidably arranged on the first clamping ring 8, and one end of the connecting rod is connected with the bending frame 11. The second clamping piece 6 comprises a second clamping ring 13, a second clamping frame 14, a second elastic rod 15 and a mounting seat 16; the second clamping frames 14 are provided with two groups, the second clamping frames 14 of the two groups are arranged in the second clamping ring 13, and the clamping ends are opposite; the second elastic rod 15 is connected with the second clamping frame 14 and the second clamping ring 13; the mounting seat 16 is arranged on the second clamping ring 13. The connecting piece 7 comprises a mounting frame 17, a rack 18, an eccentric wheel 20, a box body 21 and a pushing plate 22; an installation chamber is arranged in the box body 21; the eccentric wheel 20 is rotatably arranged in the mounting chamber, and one side of the eccentric wheel 20 is provided with a half gear 19; the upper end of the rack 18 extends into the mounting chamber and is meshed with the half gear 19, and the lower end of the rack extends out of the box body 21 and is connected with the mounting frame 17; the mounting frame 17 is rotatably arranged on the mounting seat 16; the other end of the connecting rod 12 extends into the installation chamber and is connected with one side of the pushing plate 22; the other side of the push plate 22 is slidably connected to the eccentric 20. The box body 21 is provided with a sliding block 29 and a first spring 30; the sliding block 29 is connected with the rack 18 and is simultaneously connected with the wall of the mounting chamber in a sliding manner; the upper end of the first spring 30 is connected with the top of the installation chamber, and the lower end is connected with the sliding block 29. The first clamping frame 9, the bending frame 11 and the second clamping frame 14 are arc-shaped structures, are clamped and fastened, and have good anti-skid performance.
The mount 4 includes a mounting plate 31 and a mounting rod 32; the mounting plate 31 is detachably arranged on the wall of the oil tank; the mounting bar 32 articulates the mounting plate 31 and the cassette 21. The device is convenient to install and disassemble and convenient to maintain.
Example IV
As shown in fig. 1-6, the capacitive sensor with bending design provided by the invention comprises a sensor main body 1, a bending part 2 and a bending component 3; the upper end of the bending part 2 is connected with the tail part of the sensing end of the sensor main body 1 and comprises a vertical section 23 at the upper end and a bending section 24 at the lower end; the bending component 3 comprises a mounting piece 4, a first clamping piece 5, a second clamping piece 6 and a connecting piece 7; the connecting piece 7 is arranged in the oil tank through the mounting piece 4 and simultaneously connects the first clamping piece 5 and the second clamping piece 6; the first clamping piece 5 is matched with the vertical section 23; the second clamping piece 6 is matched with the bending section 24. The first clamping piece 5 comprises a first clamping ring 8, a first clamping frame 9, an elastic rod 10, a bending frame 11 and a connecting rod 12; the first clamping frame 9 and the bending frame 11 are arranged in the first clamping ring 8, and the clamping end and the bending end are opposite; the elastic rod I10 is connected with the clamping frame I9 and the clamping ring I8; the connecting rod 12 is slidably arranged on the first clamping ring 8, and one end of the connecting rod is connected with the bending frame 11. The second clamping piece 6 comprises a second clamping ring 13, a second clamping frame 14, a second elastic rod 15 and a mounting seat 16; the second clamping frames 14 are provided with two groups, the second clamping frames 14 of the two groups are arranged in the second clamping ring 13, and the clamping ends are opposite; the second elastic rod 15 is connected with the second clamping frame 14 and the second clamping ring 13; the mounting seat 16 is arranged on the second clamping ring 13. The connecting piece 7 comprises a mounting frame 17, a rack 18, an eccentric wheel 20, a box body 21 and a pushing plate 22; an installation chamber is arranged in the box body 21; the eccentric wheel 20 is rotatably arranged in the mounting chamber, and one side of the eccentric wheel 20 is provided with a half gear 19; the upper end of the rack 18 extends into the mounting chamber and is meshed with the half gear 19, and the lower end of the rack extends out of the box body 21 and is connected with the mounting frame 17; the mounting frame 17 is rotatably arranged on the mounting seat 16; the other end of the connecting rod 12 extends into the installation chamber and is connected with one side of the pushing plate 22; the other side of the push plate 22 is slidably connected to the eccentric 20. The box body 21 is provided with a sliding block 29 and a first spring 30; the sliding block 29 is connected with the rack 18 and is simultaneously connected with the wall of the mounting chamber in a sliding manner; the upper end of the first spring 30 is connected with the top of the installation chamber, and the lower end is connected with the sliding block 29. The first clamping frame 9, the bending frame 11 and the second clamping frame 14 are arc-shaped structures, are clamped and fastened, and have good anti-skid performance.
The bending part 2 is an inner cylindrical pipe and an outer cylindrical pipe which are coaxially arranged; an inner bending groove I25 and an outer bending groove I26 are respectively arranged on the upper end vertical section 23 of the inner and outer two-layer cylindrical pipe; the inner bending groove one 25 and the outer bending groove one 26 are provided on the same side of the bending frame 11. An inner bending groove II 28 and an outer bending groove II 27 are respectively arranged on the lower bending section 24 of the inner cylindrical tube and the outer cylindrical tube; the inner bending groove two 28 and the outer bending groove two 27 are arranged on the same side of the connecting piece 7. By providing the first inner bending groove 25, the first outer bending groove 26, the second inner bending groove 28 and the second outer bending groove 27 to be stressed and extruded, the whole bending part 2 is bent in a certain range. Avoid kink 2 direct breakage, produce the burr, cause the secondary damage to the oil tank.
The capacitive sensor with bending design in the embodiment has the following working method:
s1, mounting a mounting plate 31 on an oil tank through a fixing screw during mounting, and further adjusting the position of a clamping point by moving a clamping ring I8 and a clamping ring II 13 to enable the length of a bending part 2 and a sensor main body 1 to be matched with the depth of the oil tank;
s2, the first clamping frame 9 and the bending frame 11 clamp the vertical section 23, and the second clamping frame 14 clamps the bending section 24;
s3, when the oil tank is impacted and deformed, the bending section 24 is tilted, the mounting frame 17 drives the rack 18 to move upwards, the eccentric wheel 20 rotates, and the pushing plate 22 is forced to move towards the bending part 2;
s4, pushing and applying force to one side of the vertical section 23 by the bending frame 11;
s5, the first inner bending groove 25, the first outer bending groove 26, the second inner bending groove 28 and the second outer bending groove 27 are stressed and extruded, and the whole bending part 2 is bent in a certain range.
The capacitive sensor is convenient to install and detach, accurate in detection, stable in bending action is guaranteed by setting two-point bending, and bending deformation of the sensor is increased.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. The capacitive sensor with the bending design comprises a sensor main body (1) and is characterized by further comprising a bending part (2) and a bending component (3); the bending part (2) is arranged at the tail part of the sensing end of the sensor main body (1) and comprises a vertical section (23) at the upper end and a bending section (24) at the lower end; the bending component (3) comprises a mounting piece (4), a first clamping piece (5), a second clamping piece (6) and a connecting piece (7); the connecting piece (7) is arranged in the oil tank through the mounting piece (4) and is connected with the first clamping piece (5) and the second clamping piece (6); the first clamping piece (5) is matched with the vertical section (23); the second clamping piece (6) is matched with the bending section (24);
the first clamping piece (5) comprises a first clamping ring (8), a first clamping frame (9), a first elastic rod (10), a bending frame (11) and a connecting rod (12); the first clamping frame (9) and the bending frame (11) are arranged in the first clamping ring (8), and the clamping end is opposite to the bending end; the elastic rod I (10) is connected with the clamping frame I (9) and the clamping ring I (8); the connecting rod (12) is arranged on the first clamping ring (8) in a sliding way, and one end of the connecting rod is connected with the bending frame (11);
the second clamping piece (6) comprises a second clamping ring (13), a second clamping frame (14), a second elastic rod (15) and a mounting seat (16); the second clamping frames (14) are arranged in two groups, the second clamping frames (14) are arranged in the second clamping ring (13), and the clamping ends are opposite; the elastic rod II (15) is connected with the clamping frame II (14) and the clamping ring II (13); the mounting seat (16) is arranged on the clamping ring II (13);
the connecting piece (7) comprises a mounting frame (17), a rack (18), an eccentric wheel (20), a box body (21) and a pushing plate (22); an installation chamber is arranged in the box body (21); the eccentric wheel (20) is rotatably arranged in the mounting chamber, and a half gear (19) is arranged on one side of the eccentric wheel (20); the upper end of the rack (18) stretches into the mounting chamber and is meshed with the half gear (19), and the lower end stretches out of the box body (21) and is connected with the mounting frame (17); the mounting frame (17) is rotatably arranged on the mounting seat (16); the other end of the connecting rod (12) extends into the installation chamber and is connected with one side of the pushing plate (22); the other side of the pushing plate (22) is connected with the eccentric wheel (20) in a sliding way;
an inner bending groove I (25) and an outer bending groove I (26) are respectively arranged on the vertical section (23); the inner bending groove I (25) and the outer bending groove I (26) are arranged on the same side of the bending frame (11); an inner bending groove II (28) and an outer bending groove II (27) are respectively arranged on the bending section (24); the inner bending groove II (28) and the outer bending groove II (27) are arranged on the same side of the connecting piece (7).
2. The capacitive sensor with bent design according to claim 1, characterized in that the case (21) is provided with a slider (29) and a spring one (30); the sliding block (29) is connected with the rack (18) and is simultaneously connected with the wall of the mounting chamber in a sliding way; the upper end of the first spring (30) is connected with the top of the installation chamber, and the lower end of the first spring is connected with the sliding block (29).
3. The capacitive sensor with the bending design according to claim 1, wherein the first clamping frame (9), the bending frame (11) and the second clamping frame (14) are all arc-shaped structures.
4. The capacitive sensor with bending design according to claim 1, characterized in that the first elastic rod (10) and the second elastic rod (15) are identical in structure.
5. The capacitive sensor with bent design according to claim 4, characterized in that the first elastic rod (10) comprises a sliding rod (33) and a second spring (34); the inner annular wall of the first clamping ring (8) is provided with a mounting groove; one end of the sliding rod (33) is connected with the first clamping frame (9), and the other end of the sliding rod extends into the mounting groove and is connected with the mounting groove in a sliding way; the second spring (34) is sleeved on the sliding rod (33), one end of the second spring is connected with the notch of the mounting groove, and the other end of the second spring is connected with the first clamping frame (9).
6. Capacitive sensor with bent design according to claim 1, characterized in that the mounting (4) comprises a mounting plate (31) and a mounting bar (32); the mounting plate (31) is detachably arranged on the wall of the oil tank; the mounting rod (32) is hinged with the mounting plate (31) and the box body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111335624.5A CN114054555B (en) | 2021-11-11 | 2021-11-11 | Capacitive sensor with bending design |
Applications Claiming Priority (1)
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| CN211013151U (en) * | 2019-11-28 | 2020-07-14 | 四川泛华航空仪表电器有限公司 | Cylindrical capacitive sensor with bending design |
| JP2020128943A (en) * | 2019-02-08 | 2020-08-27 | 與宗治 丹治 | Liquid level measuring device |
| CN113074795A (en) * | 2021-04-01 | 2021-07-06 | 安徽安凯汽车股份有限公司 | Capacitance type oil tank sensor |
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| WO2019160987A2 (en) * | 2018-02-13 | 2019-08-22 | L-3 Technologies, Inc. | Dipstick and electronic fluid level sensor |
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| US4564881A (en) * | 1983-10-29 | 1986-01-14 | Vdo Adolf Schindling Ag | Device for electrically measuring a liquid level |
| US5103672A (en) * | 1990-09-26 | 1992-04-14 | Ragen Data Systems, Inc. | Flexible transmitter and fluid level gauging probe |
| DE29918237U1 (en) * | 1999-10-15 | 2000-03-02 | Sie Sensorik Ind Elektronik Gm | Capacitive flexible sensor |
| CN101038199A (en) * | 2007-02-09 | 2007-09-19 | 天津大学 | Carbon fiber composite pipe electrode capacitance type oil level sensor and instrument used in same |
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| CN211013151U (en) * | 2019-11-28 | 2020-07-14 | 四川泛华航空仪表电器有限公司 | Cylindrical capacitive sensor with bending design |
| CN113074795A (en) * | 2021-04-01 | 2021-07-06 | 安徽安凯汽车股份有限公司 | Capacitance type oil tank sensor |
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| CN114054555A (en) | 2022-02-18 |
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