CN209485578U - A kind of top load pressure sensor - Google Patents

Abstract

The utility model relates to pressure sensor technique fields, and disclose a kind of top load pressure sensor, including ring body, top cover is fixedly installed at the top of the ring body, the bottom of the ring body is fixedly installed with bottom plate, the outer sheath of the ring body is equipped with the insulation sleeve positioned at top cover and plate outer side, the first varistor is fixedly installed at the top of the bottom plate, connecting plate is fixedly installed at the top of first varistor, portable stanchion is fixedly installed at the top of the connecting plate, the inside of the portable stanchion offers mounting hole, the inside left side wall of the ring body is fixedly installed with one end penetrating mounting holes and extends to the fixing axle of the inside right side wall of ring body.The top load pressure sensor, has the advantages that load-carrying ability is strong, and the varistor for solving pressure sensor inside in the prior art is mostly to be transversely mounted, and object is overweight to be easy that varistor is made to damage or be broken, the problem of load-carrying ability difference.

Description

A kind of top load pressure sensor

Technical field

The utility model relates to pressure sensor technique field, specially a kind of top load pressure sensor.

Background technique

Pressure sensor is to experience pressure signal, and can be converted into pressure signal according to certain rule available defeated The device or device of electric signal out, pressure sensor are usually made of pressure-sensing device and signal processing unit, by difference Test pressure type, pressure sensor can be divided into gauge pressure transducer, differential pressure pick-up and absolute pressure sensor, and pressure sensor is The most commonly used a kind of sensor in industrial practice is widely used in various industrial automatic control environment, is related to water conservancy and hydropower, railway Numerous industries such as traffic, intelligent building, production automatic control, aerospace, military project, petrochemical industry, oil well, electric power, ship, lathe, pipeline, Some sensors principles and its application are just simply introduced below, separately there is medical pressure sensor.

The varistor of pressure sensor inside is mostly and is transversely mounted in the prior art, and object is overweight to be easy to make varistor Damage or fracture, load-carrying ability is poor, so propose that a kind of top load pressure sensor solves the problems, such as above-mentioned propose.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of top load pressure sensor, has load-carrying ability The advantages that strong, the varistor for solving pressure sensor inside in the prior art are mostly to be transversely mounted, and object is overweight to be easy to make Varistor damage or fracture, the problem of load-carrying ability difference.

(2) technical solution

To realize the strong purpose of above-mentioned load-carrying ability, the utility model is provided the following technical solutions: a kind of top load pressure Sensor, including ring body are fixedly installed with top cover at the top of the ring body, and the bottom of the ring body is fixedly installed with bottom plate, institute The outer sheath for stating ring body is equipped with the insulation sleeve for being located at top cover and plate outer side, and it is pressure-sensitive to be fixedly installed with first at the top of the bottom plate Resistance is fixedly installed with connecting plate at the top of first varistor, movable branch is fixedly installed at the top of the connecting plate Column, the inside of the portable stanchion offer mounting hole, and the inside left side wall of the ring body is fixedly installed with one end through installation Hole and extend to ring body inside right side wall fixing axle, the bottom of the fixing axle is fixedly installed with inside portable stanchion The second varistor, be fixedly installed with felt pad at the top of the portable stanchion, be fixedly installed at the top of the felt pad Connecting column, is fixedly installed with contact block at the top of the connecting column, and the inside of the fixing axle offers one end through ring body simultaneously The string holes on the right side of bottom plate is extended to, is fixedly installed with connector on the right side of the bottom plate.

Preferably, the inside of the ring body offers installation cavity, and the first varistor and portable stanchion are respectively positioned on peace Fill the inside of cavity.

Preferably, the top of the top cover is openning shape, and connecting column runs through top cover and extends to the top of top cover.

Preferably, to be flexibly connected between second varistor and portable stanchion, and connecting plate is conductor.

Preferably, first varistor and the second varistor are center axis in symmetrical up and down using connecting plate, And first varistor be fixedly connected with connecting plate with the second varistor.

Preferably, the size with fixing axle of the mounting hole match, and contact with each other between fixing axle and mounting hole.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of top load pressure sensor, have it is following the utility model has the advantages that

The top load pressure sensor, is connected to power supply by connector, and to be delivered to first pressure-sensitive by connector for source current The electric current of resistance, the first varistor imports the second varistor by connecting plate, and the electric current of the second varistor imports string holes Internal conducting wire, wire loop extends to the outside of ring body by connector, and when contact block is under pressure, contact block is pressed downward connecting Column, felt pad, portable stanchion and connecting plate are connect, connecting plate, which moves down, to be stretched the second varistor and squeeze the first pressure-sensitive electricity Resistance stretches the second varistor resistance and becomes larger, and the resistance for squeezing the first varistor becomes smaller, at this time to the second varistor in the One varistor imports an equal amount of electric current, and the second varistor is then different in the voltage of the first varistor, measures voltage Difference, to achieve the purpose that mechanical quantity is become electrical quantities by pressure sensor, compared to varistor is transversely mounted, which is passed The bearing capacity of sensor is stronger, can effectively prevent varistor fracture damage.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model portable stanchion structural schematic diagram.

In figure: 1 ring body, 2 string holes, 3 bottom plates, 4 insulation sleeves, 5 top covers, 6 portable stanchions, 7 second varistors, 8 first pressures Quick resistance, 9 connecting plates, 10 connectors, 11 installation cavities, 12 mounting holes, 13 fixing axles, 14 felt pads, 15 connecting columns, 16 contacts Block.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of top load pressure sensor, including ring body 1, the top of ring body 1 is fixedly installed with top cover 5, and the bottom of ring body 1 is fixedly installed with bottom plate 3, and the outer sheath of ring body 1, which is equipped with, to be located at The insulation sleeve 4 in 3 outside of top cover 5 and bottom plate, the top of bottom plate 3 are fixedly installed with the first varistor 8, the first varistor 8 Top is fixedly installed with connecting plate 9, and the top of connecting plate 9 is fixedly installed with portable stanchion 6, and the inside of ring body 1 offers installation Cavity 11, and the first varistor 8 and portable stanchion 6 are respectively positioned on the inside of installation cavity 11, the inside of portable stanchion 6 offers Mounting hole 12, the inside left side wall of ring body 1 are fixedly installed with one end penetrating mounting holes 12 and extend to the inside right side wall of ring body 1 Fixing axle 13, the bottom of fixing axle 13 is fixedly installed with the second varistor 7 inside portable stanchion 6, and second is pressure-sensitive To be flexibly connected between resistance 7 and portable stanchion 6, and connecting plate 9 for conductor, the first varistor 8 and the second varistor 7 with Connecting plate 9 is that center axis is in symmetrical up and down, and the first varistor 8 and the second varistor 7 are fixed with connecting plate 9 and connected It connects, the top of portable stanchion 6 is fixedly installed with felt pad 14, and the top of felt pad 14 is fixedly installed with connecting column 15, top cover 5 Top is openning shape, and connecting column 15 runs through top cover 5 and extends to the top of top cover 5, and the top of connecting column 15 is fixedly installed with Contact block 16, the inside of fixing axle 13 offer one end through ring body 1 and extend to the string holes 2 on 3 right side of bottom plate, the right side of bottom plate 3 Side is fixedly installed with connector 10, and size and the fixing axle 13 of mounting hole 12 match, and phase between fixing axle 13 and mounting hole 12 Mutually contact, is connected to power supply by connector 10, and source current is delivered to the first varistor 8, the first pressure-sensitive electricity by connector 10 The electric current of resistance 8 imports the second varistor 7 by connecting plate 9, and the electric current of the second varistor 7 imports the conducting wire inside string holes 2, Wire loop extends to the outside of ring body 1 by connector 10, and when contact block 16 is under pressure, contact block 16 is pressed downward connecting column 15, felt pad 14, portable stanchion 6 and connecting plate 9, connecting plate 9 moves down the second varistor 7 of stretching and extruding first is pressure-sensitive Resistance 8 stretches 7 resistance of the second varistor and becomes larger, and the resistance for squeezing the first varistor 8 becomes smaller, at this time to the second pressure-sensitive electricity Resistance 7 imports an equal amount of electric current in the first varistor 8, the second varistor 7 in the first varistor 8 voltage then not Together, voltage difference is measured, to achieve the purpose that mechanical quantity is become electrical quantities by pressure sensor, compared to being transversely mounted pressure-sensitive electricity Resistance, the bearing capacity of the pressure sensor is stronger, can effectively prevent varistor fracture damage.

In conclusion the top load pressure sensor, is connected to power supply by connector 10, source current is defeated by connector 10 It send to the first varistor 8, the electric current of the first varistor 8 imports the second varistor 7, the second pressure-sensitive electricity by connecting plate 9 The electric current of resistance 7 imports the conducting wire inside string holes 2, and wire loop passes through connector 10 and extends to the outside of ring body 1, when contact block 16 by When to pressure, contact block 16 is pressed downward connecting column 15, felt pad 14, portable stanchion 6 and connecting plate 9, and connecting plate 9 moves down drawing It stretches the second varistor 7 and squeezes the first varistor 8, stretch 7 resistance of the second varistor and become larger, squeeze the first varistor 8 resistance becomes smaller, and imports an equal amount of electric current, the second varistor in the first varistor 8 to the second varistor 7 at this time 7 in the first varistor 8 voltage it is then different, voltage difference is measured, so that having reached pressure sensor becomes electricity for mechanical quantity The purpose of amount, compared to varistor is transversely mounted, the bearing capacity of the pressure sensor is stronger, can effectively prevent varistor Fracture damage, the varistor for solving pressure sensor inside in the prior art are mostly to be transversely mounted, and object is overweight to be easy to make Varistor damage or fracture, the problem of load-carrying ability difference.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of top load pressure sensor, including ring body (1), it is characterised in that: be fixedly installed at the top of the ring body (1) The bottom of top cover (5), the ring body (1) is fixedly installed with bottom plate (3), and the outer sheath of the ring body (1), which is equipped with, is located at top cover (5) With the insulation sleeve (4) on the outside of bottom plate (3), it is fixedly installed with the first varistor (8) at the top of the bottom plate (3), described first It is fixedly installed at the top of varistor (8) connecting plate (9), is fixedly installed with portable stanchion at the top of the connecting plate (9) (6), the inside of the portable stanchion (6) offers mounting hole (12), and the inside left side wall of the ring body (1) is fixedly installed with one It holds penetrating mounting holes (12) and extends to the fixing axle (13) of the inside right side wall of ring body (1), the bottom of the fixing axle (13) It is fixedly installed with and is located at portable stanchion (6) internal second varistor (7), the top of the portable stanchion (6) is fixedly mounted Have felt pad (14), be fixedly installed with connecting column (15) at the top of the felt pad (14), the top of the connecting column (15) is solid Dingan County is equipped with contact block (16), and the inside of the fixing axle (13) offers one end through ring body (1) and extends to bottom plate (3) right side The string holes (2) of side is fixedly installed with connector (10) on the right side of the bottom plate (3).

2. a kind of top load pressure sensor according to claim 1, it is characterised in that: open the inside of the ring body (1) Equipped with installation cavity (11), and the first varistor (8) and portable stanchion (6) are respectively positioned on the inside of installation cavity (11).

3. a kind of top load pressure sensor according to claim 1, it is characterised in that: the top of the top cover (5) is Openning shape, and connecting column (15) runs through top cover (5) and extends to the top of top cover (5).

4. a kind of top load pressure sensor according to claim 1, it is characterised in that: second varistor (7) To be flexibly connected between portable stanchion (6), and connecting plate (9) is conductor.

5. a kind of top load pressure sensor according to claim 1, it is characterised in that: first varistor (8) With the second varistor (7) with connecting plate (9) be center axis in up and down it is symmetrical, and the first varistor (8) with second pressure Quick resistance (7) is fixedly connected with connecting plate (9).

6. a kind of top load pressure sensor according to claim 1, it is characterised in that: the size of the mounting hole (12) Match with fixing axle (13), and contacts with each other between fixing axle (13) and mounting hole (12).