CN111721248A - Measuring device and sensor assembly thereof - Google Patents
Measuring device and sensor assembly thereof Download PDFInfo
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- CN111721248A CN111721248A CN202010487640.5A CN202010487640A CN111721248A CN 111721248 A CN111721248 A CN 111721248A CN 202010487640 A CN202010487640 A CN 202010487640A CN 111721248 A CN111721248 A CN 111721248A
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- elastic deformation
- sensor assembly
- deformation body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
Abstract
The application relates to the field of detection and measurement, and discloses a measuring device and a sensor assembly thereof, wherein the sensor assembly comprises: a base extending in a longitudinal direction and having a first end and a second end; the elastic deformation body extends along the longitudinal direction and comprises an installation end, a measuring part and a connecting part, the measuring end extends beyond the second end of the foundation base in the longitudinal direction, and the measuring part can swing around the installation end through the elastic deformation of the connecting part; a displacement sensing mechanism mounted at a first end of the base and having a longitudinal displacement rod extending to a second end of the base; a conversion mechanism provided between the measurement portion of the elastic deformation body and the end portion of the longitudinal displacement rod of the displacement sensing mechanism. According to the technical scheme of the application, the conversion of the displacement transmission direction can be realized through the conversion mechanism.
Description
Technical Field
The present application relates to the field of measurement, and more particularly, to a sensor assembly and a measurement device including the same.
Background
In the field of measurement detection, sensor assemblies are key components of the core.
Pen-type sensors are commonly used at present. However, as the demand for measuring operation is increasing, the pen-type sensor has to perform the measuring operation along the longitudinal direction or the length direction, and thus the defects of the pen-type sensor are gradually revealed. For example, the existing pen-type sensor is usually long in length, so that the existing pen-type sensor cannot be arranged in a working occasion with a narrow measuring space (such as a narrow inner hole space); the pen-type sensor can only carry out measuring operation in the longitudinal direction or the length direction, so the moving direction of the pen-type sensor requires that the direction of the measuring point and the direction of the pen-type sensor are consistent, and the layout selection of the measuring point is severely limited.
Therefore, how to overcome at least some of the above technical defects of the pen-type sensor and improve the compatibility of the sensor becomes a technical problem to be solved in the field.
Disclosure of Invention
In view of this, the present application provides a measuring device and a sensor assembly to improve the compatibility of the sensor and avoid the limitation of the layout of the conventional sensor.
According to the present application, there is provided a sensor assembly comprising: a base seat extending in a longitudinal direction and having a first end and a second end; the elastic deformation body extends along the longitudinal direction and comprises a mounting end mounted on the foundation base, a measuring part used for contacting a measuring point of a part to be measured and a connecting part connecting the mounting end and the measuring part, wherein the measuring end of the measuring part extends beyond the second end of the foundation base in the longitudinal direction, and the measuring part can swing around the mounting end through the elastic deformation of the connecting part; a displacement sensing mechanism mounted at a first end of the base and having a longitudinal displacement rod extending to a second end of the base; a conversion mechanism provided between the measuring portion of the elastic deformation body and an end portion of the longitudinal displacement rod of the displacement sensing mechanism, for converting a swinging displacement of the measuring portion into a linear displacement of the longitudinal displacement rod in a longitudinal direction.
Preferably, the mounting end of the elastically deformable body is detachably mounted to the base in a region between the first end and the second end.
Preferably, the elastic deformation body is provided with at least one of the following notch portions at the connecting portion: a) a first cutout portion formed in an upper surface of the elastically deformable body and penetrating the elastically deformable body in a lateral direction; b) a second cutout portion formed in a lower surface of the elastically deformable body and penetrating the elastically deformable body in a transverse direction; c) and a third cutout portion that penetrates the elastic deformable body in the height direction.
Preferably, the sensor assembly further comprises at least one of the following features: a) one end of the buffer element is arranged on the foundation base, and the other end of the buffer element is arranged on the elastic deformation body; b) a pair of approach limiting elements, one approach limiting element is arranged on the surface of the elastic deformation body facing the base part, and the other approach limiting element is arranged on the surface of the base seat facing the elastic deformation body and is opposite to the approach limiting element at intervals, and is used for limiting the swing of the elastic deformation body approaching the base seat; c) and the far limiting element extends from one of the base piece and the elastic deformation body to extend through the other one, and the tail end of the far limiting element is provided with a stopping part for limiting the swinging of the elastic deformation body far away from the base seat.
Preferably, the displacement sensing mechanism comprises a sensor detachably fixed to the first end of the base and having a connecting rod extending in the longitudinal direction, the connecting rod and the longitudinal displacement rod being coaxially connected in alignment with each other.
Preferably, the base comprises: a base plate extending in the longitudinal direction between the first and second ends; and first and second side plates extending in the longitudinal direction and set up on both sides of the bottom plate in the transverse direction at intervals from each other, wherein: the elastic deformation body is arranged at the top of the foundation base, and the longitudinal displacement rod is located in a space between the bottom plate, the elastic deformation body, the first side plate and the second side plate.
Preferably, the conversion mechanism includes: the end plate is fixed at the second end of the foundation base and fixedly arranged on the bottom plate, the first side plate and the second side plate, and an inclined surface facing the longitudinal displacement rod is designed on the inner side surface of the end plate; and the end of the longitudinal displacement rod is provided with a curved structure such as a ball, the lowest part of which is higher than the upper surface of the bottom plate and the highest part of which is higher than the upper edge of the end plate, wherein in the case where the measuring part swings around the mounting end by elastic deformation of the connecting part, the inner surface of the measuring part enables the curved structure to move along the inclined surface, thereby converting the above swing displacement into linear displacement of the longitudinal displacement rod in the longitudinal direction.
Preferably, the longitudinal displacement rod carries a biasing force from a first end towards a second end of the base.
Preferably, the inclined surface includes: a first inclined surface extending from a middle portion of the end plate to the first side plate; a second inclined plane extending from a middle portion of the end plate to the second side plate, the curved structure of the longitudinal displacement rod cooperating with the first and second inclined planes simultaneously.
The application also provides a measuring device provided with the sensor assembly.
According to the technical scheme of this application, can realize displacement direction of transfer's conversion through the shifter to can overcome the layout defect of traditional pen-type sensor, and then improve the compatibility of sensor, realize the purpose of this application.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a sensor assembly according to a preferred embodiment of the present application;
FIG. 2 is a cross-sectional view of the sensor assembly shown in FIG. 1;
FIG. 3 is an exploded view of the sensor assembly shown in FIG. 1;
fig. 4 is a partial structural view of the sensor assembly according to the preferred embodiment of the present application with the elastic deformation body removed.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 3, a sensor assembly, comprising: a base 210, the base 210 extending in a longitudinal direction X and having a first end 2101 and a second end 2102; an elastic deformation body 220, the elastic deformation body 220 extending along the longitudinal direction X and including a mounting end 2201 mounted on the base 210, a measurement portion 2202 for contacting a measurement point of a component to be measured, and a connecting portion 2203 connecting the mounting end 2201 and the measurement portion 2202, the measurement end of the measurement portion 2202 extending beyond the second end 2102 of the base 210 in the longitudinal direction X, the measurement portion 2202 being capable of swinging around the mounting end 2201 by elastic deformation of the connecting portion 2203; a displacement sensing mechanism 230 mounted at a first end 2101 of base 210 and having a longitudinal displacement rod 231 extending to a second end 2102 of base 210; a conversion mechanism 240, which is provided between the measurement portion 2202 of the elastically deforming body 220 and the end of the longitudinal displacement rod 231 of the displacement sensing mechanism 230, for converting the swinging displacement of the measurement portion 2202 into the linear displacement of the longitudinal displacement rod 231 in the longitudinal direction X.
The conventional touch sensor assembly (e.g., a pen-type sensor) usually needs to be arranged along the longitudinal direction or the length direction of the sensor assembly when performing a measurement operation, and is limited by the size of the sensor assembly, so that the measurement operation is difficult to perform in a work place with a narrow space.
According to the technical scheme of the application, the conversion of the displacement transmission direction can be realized through the conversion mechanism 240, so that the layout defect of the traditional pen-type sensor can be overcome, the compatibility of the sensor is improved, and the purpose of the application is realized.
As shown in fig. 1, the base 210 extends in a longitudinal direction X, and the base 210 is provided with a mounting hole or mounting groove for fixedly or movably mounting engagement with a rack. The elastic deformation body 220 extends along the longitudinal direction X and is fixedly mounted with the base 210 through the mounting end 2201, and the fixed mounting manner can be a snap or a threaded connection. Measurement portion 2202 can swing around mounting end 2201 by elastic deformation of connecting portion 2203, so that measurement portion 2202 swings around mounting end 2201 by contact with a component to be measured during measurement. The elastic deformation body 220 may be made of an elastic material such as metal or plastic. And a displacement sensing mechanism 230 for sensing the amount of longitudinal displacement of the longitudinal displacement rod 231 during measurement, thereby obtaining a measurement value. The displacement sensing mechanism 230 may be a touch position sensor assembly such as a pen sensor.
As shown in fig. 2, the sensor assembly further includes a conversion mechanism 240, and the conversion mechanism 240 is disposed between the measurement portion 2202 of the elastic deformation body 220 and the end of the longitudinal displacement rod 231 of the displacement sensing mechanism 230, and is capable of converting the swinging displacement of the measurement portion 2202 into the linear displacement of the longitudinal displacement rod 231 in the longitudinal direction X, thereby realizing the conversion of the displacement transmission direction between the measurement point and the displacement sensing mechanism 230 during the measurement of the sensor assembly. Compare in traditional pen type sensor, the technical scheme of this application has broken away from pen type sensor and has received the restriction of self length size and can't set up the defect that uses in the narrow and small operating mode occasion in space.
As shown in fig. 1 and 3, the mounting end 2201 of the elastic deformation body 220 is preferably detachably mounted in the area between the first end 2101 and the second end 2102 of the base 210, so as to meet the measurement requirements under different working conditions by replacing the elastic deformation body 220 with different sizes and shapes. The elastic deformation body 220 may have a rectangular parallelepiped shape as a whole, and in a preferred embodiment, the elastic deformation body 220 has a thickness of 1 to 3mm, preferably 2.5mm, in the height direction Z and a width of 10 to 18mm, preferably 15mm, in the transverse direction Y. The thinnest thickness of the connecting portion 2203 is preferably 1/8-1/2 of the thickness of the mounting end 2201 or the measuring portion 2202, and the elasticity and toughness of the elastic deformation body 220 are more desirable. The thickness of the connecting portion 2203 needs to satisfy the elastic toughness of the elastic deformation body 220, and the thickness of the thinnest portion of the connecting portion 2203 is preferably 0.3-1mm, and preferably 0.5-0.8 mm.
In order to further reduce the influence of the structure of the connecting portion 2203 of the elastic deformation body 220 on the stiffness, the elastic deformation body 220 is provided with at least one of the following notched portions at the connecting portion 2203: a) a first cutout portion 221 formed in an upper surface of the elastically deformable body, the first cutout portion 221 penetrating the elastically deformable body in the transverse direction Y; b) a second cutout 222 formed in a lower surface of the elastically deformable body, the second cutout 222 penetrating the elastically deformable body in the transverse direction Y; c) and a third cutout 223, the third cutout 223 penetrating the elastic deformable body in the height direction Z. As shown in fig. 3, the elastic deformation body 220 is preferably provided with the first notch portion 221, the second notch portion 222 and the third notch portion 223 at the same time at the connection portion 2203, so that the swingable flexibility of the elastic deformation body 220 is improved by making full use of the structural improvement of the connection portion 2203.
As shown in fig. 2 and 3, the sensor assembly may further include at least one of the following features: a) a buffer element 224, one end of the buffer element 224 is disposed on the base 210, and the other end is disposed on the elastic deformation body 220; the buffering element 224 may be a spring or an elastic member made of elastic material such as rubber, and during the operation of the sensor assembly, the buffering element 224 is stretched or compressed along with the swing of the elastic deformation body 220, thereby playing the role of buffering and resetting. b) A pair of approach limiting elements, one of which is disposed on the surface of the elastic deformation body 220 facing the base 210, and the other of which is disposed on the surface of the base 210 facing the elastic deformation body 220 and is opposite to the one of the approach limiting elements at a distance from each other, for limiting the swing of the elastic deformation body 220 approaching the base 210; preferably, the position of at least one of the proximity limiting elements and the elastic deformation body 220 or the base 210 on which the proximity limiting element is located is adjustable, the proximity limiting element is preferably a screw, and the distance that the elastic deformation body 220 can swing close to the base 210 is limited by adjusting the distance between the two proximity limiting elements. c) A distal limit element 227 extending from one of the base seat 210 and the elastically deformable body 220 through the other and a distal end of the distal limit element 227 is provided with a stopping portion 2271 for limiting the swing of the elastically deformable body 220 away from the base seat 210. Opposite to the approach limiting element, the distance limiting element 227 is used for limiting the distance of the elastic deformation body 220 away from the base 210. Preferably, the distance limiting element 227 is a screw, one end of the distance limiting element 227 is a stopping portion 2271, the other end of the distance limiting element is provided with a screw thread, the distance limiting element 227 penetrates through one of the base 210 and the elastic deformation body 220 and is in threaded connection with the other, the stopping portion 2271 plays a role of limiting the maximum swing of the elastic deformation body 220 away from the base 210, and meanwhile, the distance limiting element 227 can be adjusted to limit the maximum distance of the elastic deformation body 220 away from the base 210 through the depth of the threaded connection.
As shown in fig. 4, the displacement sensing mechanism 230 includes a sensor 232, the sensor 232 being detachably fixed to the first end 2101 of the base 210 and having a connecting rod 233 extending in the longitudinal direction X, the connecting rod 233 and the longitudinal displacement rod 231 being coaxially aligned with each other. The sensor 232 is used for converting the displacement transmitted from the longitudinal displacement rod 231 to the connecting rod 233 into an electrical signal output by the sensor assembly. Preferably, the sensor 232 may be a commercially available LVDT displacement sensor, for example, the sensor 232 may be a pen type displacement sensor. The connection rod 233 is preferably made of an elastic material so that the longitudinal displacement rod 231 can swing in a radial direction with respect to the central axis of the sensor 232. So that even when the longitudinal displacement rod 231 is angularly changed with respect to the central axis of the sensor 232, the force is accurately transmitted to the sensor 232 through the longitudinal displacement rod 231 and the connecting rod 233. Further, due to the design that the connecting rod 233 can be elastically bent in the radial direction, the longitudinal displacement rod 231 and the sensor 232 are effectively protected, and therefore the service life of the sensor assembly is prolonged.
According to the sensor assembly of any of the above embodiments, the base 210 and the elastic deformation body 220 together form a relatively closed structure, so as to avoid adverse effects of other workpieces or impurities on the interior of the sensor assembly. As shown in fig. 3 and 4, the base 210 preferably includes: a floor 211 extending in the longitudinal direction X between the first end 2101 and the second end 2102; and a first side plate 212 and a second side plate 213, the first side plate 212 and the second side plate 213 extending in the longitudinal direction X and being set up on both sides of the bottom plate 211 in the transverse direction Y at a distance from each other, wherein: the elastic deformation body 220 is disposed on the top of the base 210, and the longitudinal displacement rod 231 is located in a space between the bottom plate 211, the elastic deformation body 220, the first side plate 212 and the second side plate 213. The longitudinal displacement rod 231 disposed in the space between the bottom plate 211, the elastic deformation body 220, the first side plate 212, and the second side plate 213 can avoid contact with the outside during the operation, and the reliability of the sensor assembly is improved, so that the service life and the measurement accuracy of the sensor assembly are improved.
According to the sensor assembly as described above, the conversion mechanism 240 that converts the swinging displacement of the measurement portion 2202 into the linear displacement of the longitudinal displacement rod 231 in the longitudinal direction X may be a ramp mechanism or a gear mechanism. As shown preferably in fig. 3 and 4, the switching mechanism 240 includes: an end plate 214, the end plate 214 is fixed at the second end 2102 of the base 210 and fixedly arranged on the bottom plate 211, the first side plate 212 and the second side plate 213, and the inner side surface of the end plate 214 is designed with an inclined surface 241 facing the longitudinal displacement rod 231; and the end of the longitudinal displacement rod 231 is provided with a curved structure 2311 such as a ball, the lowest of the curved structure 2311 being higher than the upper surface of the bottom plate 211 and the highest being higher than the upper edge of the end plate 214, wherein in the case where the measurement portion 2202 is swung around the mounting end 2201 by the elastic deformation of the connection portion 2203, the inner surface of the measurement portion 2202 can move the curved structure 2311 along the inclined surface 241, thereby converting the above-described swinging displacement into a linear displacement of the longitudinal displacement rod 231 in the longitudinal direction X. The curved surface structure 2311 may be a spherical structure or a hemispherical structure, and the inner surface of the measuring part 2202 presses the curved surface structure 2311 to be close to the bottom plate 211 at the position of the inclined surface 241, so that the longitudinal displacement rod 231 is linearly displaced toward the sensor 232 in the longitudinal direction X, thereby allowing the sensor 232 to obtain a measurement value. By the conversion mechanism 240, the swinging of the measurement part 2202 is converted into the sliding of the curved surface structure 2311 on the inclined surface 241, and further converted into the linear displacement of the longitudinal displacement rod 231 in the longitudinal direction X, and the conversion from the relative displacement of the measurement point and the sensor assembly in the measurement process of the sensor assembly to the displacement transmission of the longitudinal displacement rod 231 in the longitudinal direction X is realized.
In order to keep the sensor assembly inoperative with the curved structure 2311 lowermost above the upper surface of the base plate 211 and uppermost above the upper edge of the end plate 214, the longitudinal displacement rod 231 preferably carries a biasing force from the first end 2101 towards the second end 2102 of the base 210. The biasing force may be provided by a biasing member such as a spring or by the connecting rod 233 of the displacement sensing mechanism 230. preferably, the connecting rod 233 is made of an elastic material or has an elastic structure therein to always apply a biasing force to the longitudinal displacement rod 231 toward the second end 2102.
As shown in fig. 4, the inclined surface 241 preferably includes: a first inclined surface 2411 extending from the middle of the end plate 214 to the first side plate 212; and a second inclined surface 2412, the second inclined surface 2412 extending from the middle of the end plate 214 to the second side plate 213, the curved structure 2311 of the longitudinal displacement rod 231 simultaneously cooperates with the first inclined surface 2411 and the second inclined surface 2412, so that the curved structure 2311 is always positioned at the middle position of the two inclined surfaces under the simultaneous action of the first inclined surface 2411 and the second inclined surface 2412, and the longitudinal displacement rod 231 is always positioned on the plane between the first inclined surface 2411 and the second inclined surface 2412, thereby improving the measurement accuracy of the sensor assembly.
According to another aspect of the present application, there is also provided a measuring device provided with the sensor assembly of any of the above embodiments, thereby enabling the measuring device to perform a measuring operation in an operation site in which a measurement space is narrow (e.g., a narrow inner hole space).
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.
In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.
Claims (10)
1. A sensor assembly, characterized in that the sensor assembly comprises:
a base (210), the base (210) extending in a longitudinal direction (X) and having a first end (2101) and a second end (2102);
an elastic deformation body (220), wherein the elastic deformation body (220) extends along a longitudinal direction (X) and comprises a mounting end (2201) mounted on the base seat (210), a measuring part (2202) used for contacting a measuring point of a component to be measured and a connecting part (2203) connecting the mounting end (2201) and the measuring part (2202), the measuring end of the measuring part (2202) extends in the longitudinal direction (X) and exceeds a second end (2102) of the base seat (210), and the measuring part (2202) can swing around the mounting end (2201) through the elastic deformation of the connecting part (2203);
a displacement sensing mechanism (230) mounted to a first end (2101) of the base (210) and having a longitudinal displacement rod (231) extending to a second end (2102) of the base (210);
a conversion mechanism (240), which is provided between the measurement portion (2202) of the elastically deformable body (220) and an end portion of the longitudinal displacement rod (231) of the displacement sensing mechanism (230), for converting a swinging displacement of the measurement portion (2202) into a linear displacement of the longitudinal displacement rod (231) in the longitudinal direction (X).
2. The sensor assembly of claim 1, wherein the mounting end (2201) of the elastically deformable body (220) is detachably mounted to the base (210) in a region between the first end (2101) and the second end (2102).
3. The sensor assembly according to claim 1, characterized in that the elastically deformable body (220) is provided with at least one of the following cut-outs at the connection portion (2203):
a) a first cutout portion (221) formed in an upper surface of the elastically deformable body, the first cutout portion (221) penetrating the elastically deformable body in a transverse direction (Y);
b) a second cutout (222) formed in a lower surface of the elastically deformable body, the second cutout (222) penetrating the elastically deformable body in a transverse direction (Y);
c) and a third cutout (223), wherein the third cutout (223) penetrates the elastically deformable body in the height direction (Z).
4. The sensor assembly of claim 1, further comprising at least one of the following features:
a) a buffer element (224), one end of the buffer element (224) is arranged on the base (210), and the other end is arranged on the elastic deformation body (220);
b) a pair of approach limiting elements, one of which is arranged on the surface of the elastic deformation body (220) facing the base (210), and the other of which is arranged on the surface of the base (210) facing the elastic deformation body (220) and is opposite to the one of the approach limiting elements at a distance from each other, for limiting the swing of the elastic deformation body (220) approaching the base (210);
c) a far spacing element (227) extending from one of the base seat (210) and the elastic deformation body (220) through the other and a stop portion (2271) provided at the end of the far spacing element (227) for limiting the swing of the elastic deformation body (220) far from the base seat (210).
5. The sensor assembly according to claim 1, characterized in that the displacement sensing mechanism (230) comprises a sensor (232), the sensor (232) being detachably fixed to the first end (2101) of the base (210) and having a connecting rod (233) extending in the longitudinal direction (X), the connecting rod (233) and the longitudinal displacement rod (231) being coaxially connected in alignment with each other.
6. The sensor assembly according to any one of claims 1-5, wherein the base (210) comprises:
a floor (211) extending in the longitudinal direction (X) between the first end (2101) and the second end (2102); and
a first side plate (212) and a second side plate (213), which first side plate (212) and second side plate (213) extend in the longitudinal direction (X) and are set up at a distance from each other on both sides of the base plate (211) in the transverse direction (Y), wherein:
the elastic deformation body (220) is arranged at the top of the base seat (210), and the longitudinal displacement rod (231) is located in a space between the bottom plate (211), the elastic deformation body (220), the first side plate (212) and the second side plate (213).
7. The sensor assembly of claim 6, wherein the conversion mechanism (240) comprises:
an end plate (214), wherein the end plate (214) is fixed at the second end (2102) of the base seat (210) and is fixedly arranged on the bottom plate (211), the first side plate (212) and the second side plate (213), and the inner side surface of the end plate (214) is designed with an inclined surface (241) facing the longitudinal displacement rod (231); and
the end of the longitudinal displacement rod (231) is provided with a curved structure (2311) like a ball, the lowest of which (2311) is higher than the upper surface of the bottom plate (211) and the highest is higher than the upper edge of the end plate (214), wherein
In a case where the measurement portion (2202) is swung around the mounting end (2201) by elastic deformation of the connection portion (2203), the inner surface of the measurement portion (2202) can move the curved surface structure (2311) along the inclined surface (241) to convert the above-mentioned swinging displacement into linear displacement of the longitudinal displacement rod (231) in the longitudinal direction (X).
8. The sensor assembly of claim 7, wherein the longitudinal displacement rod (231) carries a biasing force from the first end (2101) towards the second end (2102) of the base (210).
9. The sensor assembly according to claim 7, wherein the inclined surface (241) comprises:
a first inclined surface (2411) extending from the middle of the end plate (214) to the first side plate (212);
a second inclined surface (2412), the second inclined surface (2412) extending from the middle of the end plate (214) to the second side plate (213),
the curved surface structure (2311) of the longitudinal displacement rod (231) is simultaneously matched with the first inclined surface (2411) and the second inclined surface (2412).
10. A measuring device provided with a sensor assembly according to any one of claims 1-9.
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| CN202110082317.4A CN112902896B (en) | 2020-06-02 | 2020-06-02 | Measuring device and sensor assembly thereof |
| CN202010487640.5A CN111721248B (en) | 2020-06-02 | 2020-06-02 | Measuring device and sensor assembly thereof |
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| CN111721248B (en) | 2021-03-23 |
| CN112902896B (en) | 2022-05-10 |
| CN112902896A (en) | 2021-06-04 |
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