CN211954386U

CN211954386U - Integral narrow strip sensor

Info

Publication number: CN211954386U
Application number: CN202020963051.5U
Authority: CN
Inventors: 伍德常
Original assignee: Guangdong South China Sea Electronic Measuring Technology Co ltd
Current assignee: Guangdong South China Sea Electronic Measuring Technology Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-11-17
Anticipated expiration: 2030-05-29

Abstract

The utility model belongs to the technical field of the sensor technique and specifically relates to indicate an integral narrow strip sensor, elastomer including integration machine-shaping's rectangular shape aluminum alloy structure, the elastomer shaping has a plurality of strain areas and deformation groove, the both sides of elastomer are all concave to be equipped with the line groove, the concave line hole of crossing that is equipped with of elastomer, the web both sides in strain area all are equipped with the strainometer, the elastomer is equipped with water joint, water joint's output is connected with the strainometer electricity via the wire, the wire appearance is located the line groove or/cross the line downthehole, the strain inslot all fills with crossing the line inslot has silicon rubber, the open end in strain groove is equipped with apron and vulcanized rubber layer from inside to outside in proper. The utility model discloses easily processing, convenient batch production, production efficiency is high, and is with low costs, light in weight, it is sealed effectual, and cross the wire casing and manage the wire for wire neatly arranged avoids the wire to arrange in disorder, and can inspect whether there is the damage at the in-process of walking the line.

Description

Integral narrow strip sensor

Technical Field

The utility model belongs to the technical field of the sensor technique and specifically relates to indicate an integral narrow strip sensor.

Background

At present, the transportation of vehicles exceeding the limit and overloading causes great harm to the traffic safety and transportation market. According to statistics, 70% of road safety accidents are caused by vehicle overload, and 50% of people have direct relation between fatal and traumatic major traffic accidents and overload. Road surface damage and bridge breakage caused by vehicle overload are becoming more serious, and damage to highway infrastructure caused by vehicle overload exceeds 300 million yuan every year, so that in order to ensure normal operation of a highway and promote healthy development of the highway transportation industry, the national improvement of overload control strength and investment is necessary, and the axle load sensor suitable for a highway overload control system is inevitably researched and developed. Due to the particularity of the highway application field, the highway has large traffic flow, serious overload and overrun and severe environment, and requires the highway axle load sensor to be waterproof, anticorrosive, wear-resistant, good in long-term stability and convenient to install and maintain. Various road axle load sensors such as quartz type and integral strip sensors are also available in the market, alloy steel is mainly adopted for processing and forming, the processing difficulty of steel is high, heat treatment and finish machining are required during production, welding sealing is generally adopted, the weight is heavy, the cost is high, the circuit is disordered, and the phenomenon of knotting of the circuit is easy to occur. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, an object of the present invention is to provide an integral strip sensor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an integral narrow strip sensor comprises an elastic body, wherein the elastic body is of an integrally processed and formed long-strip-shaped aluminum alloy structure, the middle part of the elastic body is formed with a plurality of strain areas with I-shaped cross sections and a plurality of deformation grooves along the length direction, the deformation grooves penetrate through the width direction of the elastic body, wire passing grooves are respectively and concavely arranged on two sides of the elastic body, each wire passing groove is connected with the strain grooves which are positioned on the same side in the plurality of strain areas in series, wire passing holes communicated with the wire passing grooves are concavely arranged on the elastic body, strain gauges are respectively arranged on two sides of a web plate of each strain area, the elastic body is provided with a waterproof connector, the output end of the waterproof connector is electrically connected with the strain gauges through a lead, the lead is contained in the wire passing grooves, silicon rubber for protecting the strain gauges and the lead is filled in the strain grooves and the wire passing grooves, a cover, the cover plate is used for blocking the silicon rubber in the strain tank, the vulcanized rubber layer shields the cover plate and is used for sealing a gap between the cover plate and the inner wall of the strain tank, the outer side of the vulcanized rubber layer is connected with an isolation rubber layer, and the isolation rubber layer covers the vulcanized rubber layer and the strain tank.

Further, the top surface of the elastic body is provided with a panel.

Further, the panel is a quartz stone plate.

Further, the panel and the elastomer are connected via a single-sided tape that covers the release adhesive layer.

Further, both sides of elastomer are all from the extroversion inwards in proper order concave first spacing groove, second spacing groove and third spacing groove of being equipped with, deformation groove and second spacing groove are all established from the diapire of first spacing groove is concave to form, the third spacing groove is established from the diapire of second spacing groove is concave to form, the strain groove, cross the line groove and cross the line hole and establish from the diapire of third spacing groove is concave to form, the third spacing inslot is located to the apron appearance, the vulcanized rubber layer appearance is located the second spacing inslot, keep apart the glue film appearance and locate first spacing inslot.

Further, the waterproof connector input end is detachably connected with a cable.

Further, the cable is connected with the waterproof connector through a tightening nut.

Further, the isolation adhesive layer is AB silica gel, and the single-sided adhesive tape is EVA single-sided adhesive tape.

Furthermore, the elastic body is concavely provided with a wire distributing hole, the wire distributing hole is communicated with the wire passing grooves on two sides of the elastic body, and the wires are distributed through the wire distributing hole.

The utility model has the advantages that: the utility model discloses an elastomer adopts the whole machine-shaping of aluminum alloy, easily processing, make things convenient for batch production, high production efficiency, low cost, light in weight, seal the protection to the strain gauge through multilayer seal structure, will vulcanize sealed mode and apply to this narrow strip sensor in, it is sealed effectual, and can carry on spacingly to the wire through crossing the wire casing and crossing the line hole, be convenient for manage the wire, make wire neatly arranged, avoid the wire in disorder to arrange, and can inspect whether there is the damage wire at the in-process of walking the line.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic perspective view of the elastic body of the present invention.

Description of reference numerals:

1. an elastomer; 2. a strained region; 3. a deformation groove; 4. a wire passing groove; 5. a strain tank; 6. a wire passing hole; 7. a strain gauge; 8. a waterproof joint; 9. silicone rubber; 10. a cover plate; 11. a vulcanized rubber layer; 12. an isolation glue layer; 13. a panel; 14. a single-sided tape; 15. a first limit groove; 16. a second limit groove; 17. a third limiting groove; 18. a cable; 19. a wire dividing hole; 20. a web; 21. and a tightening nut.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 3, the integral strip sensor provided by the present invention comprises an elastic body 1, wherein the elastic body 1 is an integral processing-formed long-strip aluminum alloy structure, the elastic body 1 is integrally processed and formed by milling, the structural stability is good, the processing accuracy can be well ensured due to low aluminum alloy density and easy processing, the cost for producing and manufacturing the elastic body 1 is reduced, the weight is light, the middle part of the elastic body 1 is formed with a plurality of strain areas 2 with i-shaped cross sections and a plurality of strain grooves 3 along the length direction, the upper side and the lower side of each strain area 2 are provided with the strain grooves 3, the strain grooves 3 penetrate the width direction of the elastic body 1, both sides of the elastic body 1 are both concavely provided with wire passing grooves 4, each strain groove 4 is serially connected with the strain groove 5 at the same side in the plurality of strain areas 2, the elastic body 1 is concavely provided with a wire passing hole 6 communicated with the wire passing groove 4, the strain gauge is characterized in that strain gauges 7 are arranged on two sides of a web plate 20 of the strain area 2, the strain gauges 7 are located in a strain groove 5 of the strain area 2, the elastic body 1 is provided with a waterproof joint 8, an input end of the waterproof joint 8 extends out of the elastic body 1, an output end of the waterproof joint 8 is electrically connected with the strain gauges 7 through a lead, the lead is accommodated in a wire passing groove 4 or/and a wire passing hole 6, silicon rubber 9 used for sealing and protecting the strain gauges 7 and the lead is filled in the strain groove 5 and the wire passing groove 4, a cover plate 10 and a vulcanized rubber layer 11 are sequentially arranged at an opening end of the strain groove 5 from inside to outside, the cover plate 10 is used for blocking the silicon rubber 9 in the strain groove 5, the vulcanized rubber layer 11 is used for sealing a gap between the cover plate 10 and the inner wall of the strain groove 5, and an isolation rubber layer 12, the isolating rubber layer 12 covers the vulcanized rubber layer 11 and the deformation groove 3. Through silicon rubber 9, apron 10, vulcanized rubber layer 11 and isolation glue layer 12 carry out sealing protection to strain gauge 7 and wire from inside to outside, it is sealed reliable, be fit for large batch production, and through setting up wire casing 4 and crossing wire hole 6, the one end and the water joint 8 of wire are connected, the other end of wire crosses behind wire hole 6 and walks the line and be connected with strainometer 7 along wire casing 4, or the other end of wire is direct walks the line and is connected with strainometer 7 along wire casing 4, it can carry on spacingly to cross wire casing 4 and cross wire hole 6 to the wire, be convenient for manage the wire, make wire neatly arranged, avoid the wire to arrange in disorder, and can inspect whether the wire has the damage at the in-process of walking the line. In practical application, the sensor is installed at a fixed position, so that the top surface of the sensor is flush with the ground, when the top surface of the elastic body 1 is subjected to a loading force, the elastic body 1 is provided with the deformation groove 3, so that the loading force applied to the elastic body 1 is converted into a shearing stress applied to the strain gauge 7, and the loading force can be detected and calculated. The utility model discloses set up 10-26 blind holes and form the strain area 2 of 10-13I-shaped cross sections on elastomer 1, strain gauge 7's in adjacent two I-shaped cross sections strain area 2 solder joints and wire are established ties and are constituteed an electric bridge moreover, and in use has to withstand to inlay and is shone in the sun and rain on the road surface and roll and strike with the wheel, so vulcanize the sealed mode and use on the strip sensor, can guarantee the sealed effect of a plurality of strain gauge 7 and its solder joints.

The utility model discloses an elastomer 1 adopts the whole machine-shaping of aluminum alloy, easy processing, convenient batch production, high production efficiency, low cost, light in weight, seal protection to strain gauge 7 through multilayer seal structure, the sealed mode of will vulcanizing is applied to this narrow strip sensor in, it is sealed effectual, long service life, and can carry on spacingly to the wire through crossing wire casing 4 and crossing wire hole 6, be convenient for manage the wire, make wire neatly arranged, avoid the wire to arrange in disorder, be favorable to realizing sensor and wheatstone bridge connection, and can inspect whether there is the damage at the in-process of walking the line wire.

In this embodiment, the top surface of elastomer 1 pastes and is equipped with panel 13, and panel 13 is as supporting the contact surface, avoids elastomer 1 and exterior structure direct contact and wearing and tearing, and it is convenient to maintain, and the maintenance cost is low, and has prolonged the life of this sensor.

In this embodiment, the panel 13 is a quartz stone plate, and after the sensor is installed at a fixed position, the surface of the quartz stone plate is flush with the ground, and when the surface of the quartz stone plate is higher than the ground, the surface of the quartz stone plate can be polished until the surface of the quartz stone plate is flush with the road surface.

In this embodiment, the panel 13 and the elastic body 1 are connected through the single-sided adhesive tape 14, so that the connection between the panel 13 and the elastic body 1 is firm, the single-sided adhesive tape 14 covers the release adhesive layer 12, and the single-sided adhesive tape 14 protects the release adhesive layer 12.

In this embodiment, both sides of the elastic body 1 are provided with a first limiting groove 15, a second limiting groove 16 and a third limiting groove 17 from outside to inside in a concave manner, the deformation groove 3 and the second limiting groove 16 are formed by concave arrangement of the bottom wall of the first limiting groove 15, the third limiting groove 17 is formed by concave arrangement of the bottom wall of the second limiting groove 16, the strain groove 5, the wire passing groove 4 and the wire passing hole 6 are formed by concave arrangement of the bottom wall of the third limiting groove 17, the cover plate 10 is arranged in the third limiting groove 17, the vulcanized rubber layer 11 is arranged in the second limiting groove 16, and the isolating rubber layer 12 is arranged in the first limiting groove 15. The structural design enables the sensor to be compact in structure and good in structural stability.

In this embodiment, the input end of the waterproof connector 8 is detachably connected with a cable 18, and the cable 18 is connected with the waterproof connector 8 through a tightening nut 21. This structural design is convenient for carry out dismouting and maintenance to cable 18 and water joint 8.

In this embodiment, the isolation adhesive layer 12 is AB silicone gel, which has good elasticity and effectively blocks dust, moisture, and the like, the single-sided tape 14 is EVA single-sided tape, and the silicone rubber 9 is 704 rubber; the cover plate 10 is a metal cover plate, preferably, the metal cover plate is a stainless steel cover plate.

In this embodiment, the elastic body 1 is concavely provided with a wire dividing hole 19, the wire dividing hole 19 is communicated with the wire passing grooves 4 on two sides of the elastic body 1, and the wires are divided by the wire dividing hole 19, so that the wires are respectively and electrically connected with the strain gauges 7 on two sides of the strain area 2.

The utility model discloses a theory of use is the same with the narrow strip sensor among the prior art.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. An integral strip sensor, comprising: the elastic body is of an integrally processed and formed long-strip-shaped aluminum alloy structure, a plurality of strain areas with I-shaped cross sections and a plurality of deformation grooves are formed in the middle of the elastic body along the length direction, the deformation grooves penetrate through the width direction of the elastic body, wire passing grooves are concavely formed in two sides of the elastic body, each wire passing groove is connected with the strain groove in the same side in the strain areas in series, wire passing holes communicated with the wire passing grooves are concavely formed in the elastic body, strain gauges are arranged on two sides of a web plate of each strain area, a waterproof joint is arranged on the elastic body, the output end of the waterproof joint is electrically connected with the strain gauges through a lead, the lead is accommodated in the wire passing grooves, silicon rubber used for protecting the strain gauges and the lead is filled in the strain grooves and the wire passing grooves, and a cover plate and a vulcanized rubber layer are sequentially arranged at the, the cover plate is used for blocking the silicon rubber in the strain tank, the vulcanized rubber layer shields the cover plate and is used for sealing a gap between the cover plate and the inner wall of the strain tank, the outer side of the vulcanized rubber layer is connected with an isolation rubber layer, and the isolation rubber layer covers the vulcanized rubber layer and the strain tank.

2. A unitary strip sensor according to claim 1 in which: the top surface of the elastic body is provided with a panel.

3. A unitary strip sensor according to claim 2 in which: the panel is a quartz stone plate.

4. A unitary strip sensor according to claim 2 in which: the panel is connected with the elastomer through a single-sided adhesive tape, and the single-sided adhesive tape covers the isolation adhesive layer.

5. A unitary strip sensor according to claim 1 in which: the both sides of elastomer are all from the outside-in concave first spacing groove, second spacing groove and the third spacing groove of being equipped with in proper order, deformation groove and second spacing groove are all established from the diapire of first spacing groove concavely and are formed, the third spacing groove is established from the diapire of second spacing groove concavely and is formed, the strain tank, cross the line groove and cross the line hole and establish from the diapire of third spacing groove concavely and form, the third spacing groove is located to the apron appearance, the second spacing groove is located to the vulcanite layer appearance, keep apart the glue film appearance and locate first spacing inslot.

6. A unitary strip sensor according to claim 1 in which: the input end of the waterproof connector is detachably connected with a cable.

7. An integral strip sensor according to claim 6, wherein: the cable is connected with the waterproof joint through a tightening nut.

8. An integral strip sensor according to claim 4 in which: the isolation adhesive layer is AB silica gel, and the single-sided adhesive tape is EVA single-sided adhesive tape.

9. A unitary strip sensor according to claim 1 in which: the elastic body is concavely provided with a wire distributing hole, the wire distributing hole is communicated with the wire passing grooves on two sides of the elastic body, and the wires are distributed through the wire distributing hole.