CN214583558U - Force bearing beam of piezoelectric sensor - Google Patents
Force bearing beam of piezoelectric sensor Download PDFInfo
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- CN214583558U CN214583558U CN202120893973.8U CN202120893973U CN214583558U CN 214583558 U CN214583558 U CN 214583558U CN 202120893973 U CN202120893973 U CN 202120893973U CN 214583558 U CN214583558 U CN 214583558U
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Abstract
The utility model discloses a piezoelectric sensor load roof beam belongs to dynamic weighing technical field. The utility model provides a force bearing beam of a piezoelectric sensor, which comprises an upper beam, a middle beam and a lower beam, wherein the upper beam, the middle beam and the lower beam are integrally formed; the upper beam and the lower beam are oppositely arranged; the middle beam is vertically arranged between the upper beam and the lower beam in the length direction; cross-shaped through holes are preset in the middle beam at equal intervals, and each cross-shaped through hole is formed by combining a transverse long through hole and a circular through hole positioned in the middle of the transverse long through hole; first transverse flat through holes are symmetrically distributed on two sides of the cross-shaped through hole. The purposes of stress and force transmission of the force bearing beam of the piezoelectric sensor are achieved through the first transverse flat through hole and the cross through hole, and the test precision of the piezoelectric sensor is improved; the cross-shaped through hole is formed, the miniature piezoelectric sensor can be transversely placed in, and stable installation, disassembly and replacement of the miniature piezoelectric sensor are facilitated.
Description
Technical Field
The utility model belongs to the technical field of the dynamic weighing, concretely relates to piezoelectric sensor load roof beam.
Background
In the modern intelligent traffic field, as law enforcement foundation, it is crucial for the road administration unit to accurately acquire transportation vehicle weighing information and tire quantity information, and this needs the weighing sensor to have higher precision and load-bearing body stability. At present, an I-beam weighing sensor is widely applied, but a sensing element is required to be assembled in a cavity of a sensor shell of a general I-beam weighing sensor, so that the weighing sensor is complex to assemble and poor in stability, and measurement errors of the weighing sensor can be caused by assembly deviation; meanwhile, if a certain element is damaged in the use of the sensor, the phenomenon that the sensor is difficult to replace or even cannot be replaced occurs.
SUMMERY OF THE UTILITY MODEL
In order to solve the existing problems, the utility model provides a force bearing beam of a piezoelectric sensor, a cross-shaped through hole consisting of a transverse long through hole and a round through hole positioned in the middle of the transverse long through hole is arranged on the middle beam, and a miniature piezoelectric sensor can be transversely arranged in the cross-shaped through hole, so that the miniature piezoelectric sensor can be conveniently and stably installed; meanwhile, the first transverse flat through hole is formed, when the piezoelectric sensor is stressed, the stress can be guided to the miniature piezoelectric sensor to be concentrated by the first transverse flat through hole and the cross-shaped through hole, the miniature piezoelectric sensor can sense pressure as much as possible, and the testing precision and the sensitivity of the miniature piezoelectric sensor are improved.
The utility model adopts the technical scheme as follows:
a force bearing beam of a piezoelectric sensor comprises an upper beam, a middle beam and a lower beam, wherein the upper beam, the middle beam and the lower beam are integrally formed; the upper beam and the lower beam are oppositely arranged; the middle beam is vertically arranged between the upper beam and the lower beam in the length direction; cross-shaped through holes are preset in the middle beam at equal intervals, and each cross-shaped through hole is formed by combining a transverse long through hole and a circular through hole positioned in the middle of the transverse long through hole; first transverse flat through holes are symmetrically distributed on two sides of the cross-shaped through hole.
Preferably, the upper beam, the middle beam and the lower beam are all in a long plate type.
Preferably, the horizontally long through-hole constituting the cross-shaped through-hole is a horizontally waist-shaped through-hole.
Preferably, the first transverse flat through hole is formed in the middle beam close to the upper beam; the cross-shaped through hole is formed in the middle beam close to the lower beam; and a second transverse flat through hole which is positioned at the end part of the middle beam and is close to the upper beam is arranged on the same horizontal line with the first transverse flat through hole.
Preferably, the distance between the second transverse flat through hole and the cross-shaped through hole is equal to the distance between the first transverse flat through hole and the cross-shaped through hole; the first transverse flat through hole and the second transverse flat through hole are waist-shaped through holes.
Preferably, the cross-shaped through hole and the first transverse flat-shaped through hole are positioned on the same horizontal line and communicated with each other; and a second round through hole is arranged on the middle beam and close to the end part of the middle beam, a second transverse flat through hole is communicated with the second round through hole, and the second transverse flat through hole and the cross-shaped through hole are positioned on the same horizontal line and are communicated with each other.
Preferably, the cross-shaped through hole and the first transverse flat-shaped through hole are adjacent to each other on the same horizontal line but are not communicated with each other; the cross-shaped through hole is formed in the middle beam and close to the end portion of the middle beam, the end portion of the middle beam is recessed towards the direction close to the cross-shaped through hole, and the recessed surface is composed of two inclined planes and an outward protruding arc surface located between the two inclined planes.
Preferably, the first transverse flat through hole and the second transverse flat through hole are octagonal through holes.
Preferably, the first transverse flat through hole is a curved octagonal through hole, and two surfaces of the curved octagonal through hole, which are close to the cross-shaped through hole, are curved surfaces.
Preferably, the intersections of the upper beam and the middle beam and the intersections of the lower beam and the middle beam are provided with limiting steps.
Has the advantages that: the force bearing beam of the piezoelectric sensor is provided with the cross-shaped through hole, so that the miniature piezoelectric sensor can be conveniently installed; the first transverse flat through hole is formed in the piezoelectric sensor bearing beam, and when the piezoelectric sensor bearing beam is stressed, the stress on the upper portion of the piezoelectric sensor bearing beam can be guided to be concentrated towards the direction of the cross-shaped through hole portion provided with the miniature piezoelectric sensor through the first transverse flat through hole, so that the miniature piezoelectric sensor can sense pressure as much as possible, and the testing precision and the sensitivity of the piezoelectric sensor are improved to a certain extent; meanwhile, the cross-shaped through hole is convenient for stable installation, disassembly and replacement of the miniature piezoelectric sensor.
Drawings
Fig. 1 is a schematic cross-sectional view of a force-bearing beam of a piezoelectric sensor of the present invention;
fig. 2 is a schematic view of a force-bearing beam of a piezoelectric sensor according to an embodiment of the present invention;
fig. 3 is a schematic view of a force-bearing beam of a piezoelectric sensor according to another embodiment of the present invention;
fig. 4 is a schematic view of a force-bearing beam of a piezoelectric sensor according to another embodiment of the present invention;
fig. 5 is a schematic view of a miniature piezoelectric sensor according to the present invention;
fig. 6 is a schematic view of the sealing case of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof. In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be a fixed connection, a detachable connection, or an integrated connection, a mechanical connection, a direct connection, or a connection between two elements, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
Examples
The force-bearing beam 1 of the piezoelectric sensor shown in fig. 1-6 comprises an upper beam 11, a middle beam 12 and a lower beam 13, wherein the upper beam 11, the middle beam 12 and the lower beam 13 are integrally formed; the upper beam 11 and the lower beam 13 are arranged oppositely; the middle beam 12 is vertically arranged between the upper beam 11 and the lower beam 13 in the length direction; the middle beam 12 is preset with cross-shaped through holes 2 at equal intervals, and the cross-shaped through holes 2 are formed by combining transverse long-strip through holes and circular through holes positioned in the middle of the transverse long-strip through holes; first transverse flat through holes 3 are symmetrically distributed on two sides of the cross-shaped through hole 2.
In the technical scheme, the cross-shaped through hole 2 is formed in the middle beam 12 of the piezoelectric sensor bearing beam 1, the miniature piezoelectric sensor 9 can be transversely placed in the cross-shaped through hole 2, and the structure of the piezoelectric sensor bearing beam 1 is convenient for the installation of the miniature piezoelectric sensor 9, so that the piezoelectric sensor is stable; the force bearing beam 1 of the piezoelectric sensor is provided with a first transverse flat through hole 3, when the force bearing beam 1 of the piezoelectric sensor is stressed, the first transverse flat through hole 3 can guide the stress on the upper part of the force bearing beam 1 of the piezoelectric sensor to the direction of the cross through hole 2 provided with the miniature piezoelectric sensor 9 to be concentrated, so that the miniature piezoelectric sensor 9 can sense the pressure as much as possible, and the test precision of the piezoelectric sensor is improved. By adopting the cross-shaped through hole 2, the miniature piezoelectric sensor 9 is convenient to mount, dismount and replace.
In the above technical solution, as shown in fig. 1 to 6, the upper beam 11, the middle beam 12 and the lower beam 13 are all in the form of long plates. By adopting the mode, the force bearing beam 1 of the piezoelectric sensor is convenient to bear.
In the above technical solution, as shown in fig. 2 to 4, the transverse long through hole constituting the cross-shaped through hole 2 is a transverse waist-shaped through hole. In this way, the sensing force and the conduction force are facilitated.
In the above technical solution, as shown in fig. 2 and 5, the first transverse flat through hole 3 is provided at the middle beam 12 near the upper beam 11; the cross-shaped through hole 2 is arranged at the position, close to the lower beam 13, of the middle beam 12; and a second transverse flat through hole 4 which is positioned at the end part of the middle beam 12 and is close to the upper beam 11 and is positioned on the same horizontal line with the first transverse flat through hole 3. By adopting the mode, the guiding force is gathered on the miniature piezoelectric sensor 9, the force is prevented from being dispersed to the force bearing beam 1 of the piezoelectric sensor due to the stress of the end part of the middle beam 12, so that the miniature piezoelectric sensor 9 cannot sense the force, the loss of the force is avoided, and the testing precision and the sensitivity of the piezoelectric sensor are improved to a certain extent.
In the above technical solution, as shown in fig. 2 and 5, the distance between the second transverse flat through hole 4 and the cross-shaped through hole 2 is equal to the distance between the first transverse flat through hole 3 and the cross-shaped through hole 2; the first transverse flat through hole 3 and the second transverse flat through hole 4 are waist-shaped through holes. By adopting the mode, the stress at the end part of the bearing beam 1 of the piezoelectric sensor is favorably transmitted to the miniature piezoelectric sensor 9 which is arranged in the cross-shaped through hole 2, the guidance and the transmission of the stress are favorably realized, and the test precision of the piezoelectric sensor is not influenced.
In the above technical solution, as shown in fig. 3 and 5, the cross-shaped through hole 2 and the first transverse flat-shaped through hole 3 are on the same horizontal line and are communicated with each other; and a second round through hole 5 is arranged on the middle beam 12 and close to the end part of the middle beam 12, a second transverse flat through hole 4 is communicated with the second round through hole 5, and the second transverse flat through hole 4 and the cross-shaped through hole 2 are positioned on the same horizontal line and are communicated with each other. By adopting the mode, the force borne by the force bearing beam 1 of the piezoelectric sensor can be guided and transmitted to the miniature piezoelectric sensor 9 which is arranged in the cross-shaped through hole 2 and the second round through hole 5, and the test precision of the piezoelectric sensor is improved.
In the above technical solution, as shown in fig. 4 and 5, the cross-shaped through hole 2 and the first transverse flat-shaped through hole 3 are adjacent to each other on the same horizontal line but do not communicate with each other; the cross-shaped through hole 2 is arranged on the middle beam 12 and close to the end part of the middle beam 12, the end part of the middle beam 12 is sunken towards the direction close to the cross-shaped through hole 2, and the sunken surface is composed of two inclined planes and an outward convex cambered surface arranged between the two inclined planes. By adopting the mode, the force borne by the force bearing beam 1 of the piezoelectric sensor can be guided and transmitted to the miniature piezoelectric sensor 9 arranged in the cross-shaped through hole 2; the design of the concave part 6 is beneficial to collecting stress at the end part of the piezoelectric sensor and guiding and gathering the stress on the miniature piezoelectric sensor 9 arranged in the cross-shaped through hole 2, so that the testing precision of the piezoelectric sensor is improved.
In the above technical solution, as shown in fig. 3 and 5, the first horizontal flat through hole 3 and the second horizontal flat through hole 4 are both octagonal through holes. According to the layout, the sensing force and the conduction force are facilitated in this way.
In the above technical solution, as shown in fig. 4 and 5, the first transverse flat 3 through hole is a curved octagonal through hole, and two sides of the curved octagonal through hole close to the cross-shaped through hole 2 are curved surfaces. According to the layout, the sensing force and the conduction force are facilitated in this way.
In the above technical solution, as shown in fig. 1 to 6, the intersections of the upper beam 11 and the middle beam 12, and the lower beam 13 and the middle beam 12 are provided with a limiting step 7. The limiting step 7 is arranged, so that the position of the sealing shell 8 is limited in the later period, and the mounting and dismounting of the sealing shell 8 are facilitated; specifically, the sealing shells 8 are arranged on two sides of the bearing beam 1 and detachably connected with the limiting step 7.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (10)
1. A force bearing beam of a piezoelectric sensor comprises an upper beam, a middle beam and a lower beam, wherein the upper beam, the middle beam and the lower beam are integrally formed; the structure is characterized in that the upper beam and the lower beam are oppositely arranged; the middle beam is vertically arranged between the upper beam and the lower beam in the length direction; cross-shaped through holes are preset in the middle beam at equal intervals, and each cross-shaped through hole is formed by combining a transverse long through hole and a circular through hole positioned in the middle of the transverse long through hole; first transverse flat through holes are symmetrically distributed on two sides of the cross-shaped through hole.
2. The force-bearing beam of the piezoelectric transducer as claimed in claim 1, wherein the upper beam, the middle beam and the lower beam are each in the form of a long plate.
3. The force-bearing beam of the piezoelectric transducer according to claim 1, wherein the transverse elongated through holes constituting the cross-shaped through holes are transverse waist-shaped through holes.
4. The force-bearing beam of the piezoelectric transducer according to claim 1, wherein the first transverse flat through hole is provided in the middle beam near the upper beam; the cross-shaped through hole is formed in the middle beam close to the lower beam; and a second transverse flat through hole which is positioned at the end part of the middle beam and is close to the upper beam is arranged on the same horizontal line with the first transverse flat through hole.
5. The force-bearing beam of the piezoelectric transducer as claimed in claim 4, wherein the distance between the second transverse flat through hole and the cross-shaped through hole is equal to the distance between the first transverse flat through hole and the cross-shaped through hole; the first transverse flat through hole and the second transverse flat through hole are waist-shaped through holes.
6. The force-bearing beam of the piezoelectric transducer as claimed in claim 1, wherein the cross-shaped through hole and the first transverse flat-shaped through hole are on the same horizontal line and are communicated with each other; and a second round through hole is arranged on the middle beam and close to the end part of the middle beam, a second transverse flat through hole is communicated with the second round through hole, and the second transverse flat through hole and the cross-shaped through hole are positioned on the same horizontal line and are communicated with each other.
7. The force-bearing beam of the piezoelectric transducer as claimed in claim 1, wherein the cross-shaped through hole and the first transverse flat-shaped through hole are adjacent to each other on the same horizontal line but are not communicated with each other; the cross-shaped through hole is formed in the middle beam and close to the end portion of the middle beam, the end portion of the middle beam is recessed towards the direction close to the cross-shaped through hole, and the recessed surface is composed of two inclined planes and an outward protruding arc surface located between the two inclined planes.
8. The force-bearing beam for the piezoelectric transducer according to claim 6, wherein the first and second horizontal flat through holes are octagonal through holes.
9. The force-bearing beam of the piezoelectric transducer as claimed in claim 7, wherein the first transverse flat through hole is a curved octagonal through hole, and two sides of the curved octagonal through hole close to the cross-shaped through hole are curved surfaces.
10. The force-bearing beam of the piezoelectric transducer as claimed in any one of claims 1 to 9, wherein limiting steps are provided at the intersections of the upper beam and the middle beam and the lower beam and the middle beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120893973.8U CN214583558U (en) | 2021-04-29 | 2021-04-29 | Force bearing beam of piezoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120893973.8U CN214583558U (en) | 2021-04-29 | 2021-04-29 | Force bearing beam of piezoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214583558U true CN214583558U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120893973.8U Active CN214583558U (en) | 2021-04-29 | 2021-04-29 | Force bearing beam of piezoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214583558U (en) |
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2021
- 2021-04-29 CN CN202120893973.8U patent/CN214583558U/en active Active
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