CN2689166Y - Linear displacement capacitance-grating style water-proof electronic calliper with digital display - Google Patents
Linear displacement capacitance-grating style water-proof electronic calliper with digital display Download PDFInfo
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- CN2689166Y CN2689166Y CN 200320114785 CN200320114785U CN2689166Y CN 2689166 Y CN2689166 Y CN 2689166Y CN 200320114785 CN200320114785 CN 200320114785 CN 200320114785 U CN200320114785 U CN 200320114785U CN 2689166 Y CN2689166 Y CN 2689166Y
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- grid
- connecting link
- chi frame
- digital display
- moving grid
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Abstract
The utility model relates to a linear displacement capacitance-grating style water-proof electronic caliper with digital display, which comprises a displacement signal acquisition device, a digital display device and a measuring device which is composed of a caliper body and a caliper frame. Wherein, the displacement signal acquisition device adopts a linear displacement style capacitance-grating sensor. The linear displacement capacitance-grating style water-proof electronic caliper with the digital display is characterized in that the caliper body of the caliper is provided with a sealed hollow chamber which is isolated with the outside, the movable grating and the fixed grating of the linear displacement style capacitor grating sensor are both arranged in the sealed hollow chamber, and one end of the sealed hollow chamber is provided with a through hole. The matching of the through hole with a synchronous connection device and a signal conductor is the sliding sealed matching, and the sliding sealed matching not only can make the synchronous connection device slide along the through hole, but also can ensure that the through hole is sealing isolated with the outside; the digital display device is a water-proof digital display device. The utility model has the advantages of good anti-moisture and water properties and can be normally used under water or in other liquids. The utility model has all the advantages of traditional products, the form that the external appearance is similar to the traditional products is easily accepted by users and is convenient to use. The utility model has the advantages of simple structure and good processing performance, and the repeated and volume production can be easily achieved.
Description
(1) technical field:
The utility model relates to the full waterproof digimatic calipers of a kind of straight-line displacement capacitance-grid type digimatic calipers, particularly straight-line displacement capacitance-grid type.
(2) background technology:
This patent relates to the full waterproof digimatic calipers of a kind of straight-line displacement capacitance-grid type.Straight-line displacement formula capacitor grid transducer is low in energy consumption with its special IC, product structure is microminiaturized and become amount of electrons tool leading core product already.The digimatic calipers of genus again of its application quantity maximum.Straight-line displacement formula sensor by two independent separately, be parallel to each other, between by certain interval, the palisade capacitor plate of linear displacement is formed relatively.Because the electric capacity coupling and medium promptly be air between the two-plate, to the requirement of medium specific inductive capacity determined that sensor can not be used for that air humidity is big, water, the medium working environment of liquid that has conductive ion to exist, the application of therefore all the time holding grid type electronics measurer is subjected to the restriction of environment for use condition.In recent years, the domestic mechanical type displacement mechanism of having developed holds the waterproof digimatic calipers that the demonstration of grid numeral combines with circle.As application number be: 98116518.4, name is called " a kind of Capacitive Digital Display Vernier Callipers ", and this waterproof digimatic calipers at first converts rectilinear motion to rotation by rack-and-pinion, holds grid with circle and measures amount of spin, thereby obtain the rectilinear motion amount.This indirect metering system, owing in momental conversion and conversion process, have error, so its measurement is not accurate enough, its structure is also complicated simultaneously.
(3) utility model content:
It is identical that the utility model will disclose a kind of and existing straight-line displacement formula capacitor grid transducer, adopts the full waterproof digimatic calipers of straight-line displacement capacitance-grid type of directly measuring straight-line displacement amount.
Identical displacement signal harvester, digital display device and measurement mechanism three parts that are made of blade and chi frame of comprising with generic linear displacement-type capacitive grid numeral display slide calliper rule of the full waterproof digimatic calipers of this straight-line displacement capacitance-grid type, wherein the displacement signal harvester also is to adopt straight-line displacement formula capacitor grid transducer.Different with traditional line displacement-type capacitor grid transducer is, the blade of slide calliper rule described in the utility model is provided with a sealed cavity that is hedged off from the outer world, the fixed grid of straight-line displacement formula capacitor grid transducer and moving grid all are arranged in the sealing cavity, one end termination of sealing cavity offers a through hole that can allow signal conductor and synchronous connecting device pass, and synchronous connecting device is used to connect moving grid, the chi frame is synchronized with the movement to guarantee moving grid and chi frame; Through hole cooperates for both allowing synchronous connecting device slide along through hole with synchronous connecting device and signal conductor, guarantees that again the through hole seals isolated slipper seal to external world and cooperates; Digital display device also is the water-proof type digital display device simultaneously.
The utility model is simple in structure realizes that with being convenient to described sealed cavity is by the tank of being located on the blade in order to make, and the seal plug of seal cover board on the tank and tank termination constitutes, and described through hole is opened on the plug.
Described synchronous connecting device comprises moving grid connecting link and the chi frame connecting link that is divided into the inside and outside both sides of sealed cavity at least, the moving grid connecting link is arranged in the sealed cavity, its front end and moving grid are connected, chi frame connecting link is arranged at outside the annular seal space, its front end is connected with the chi frame, and the rear end of moving grid connecting link and chi frame connecting link is connected to guarantee chi frame and the same moved further of moving grid.Synchronous connecting device also can be the form that an as a whole and preceding end yoke in rear end becomes two bars, wherein a fork arm is arranged at and serves as the moving grid connecting link in the sealed cavity, its front end is connected with moving grid, another root fork arm is arranged at the sealed cavity outside, serve as chi frame connecting link, its front end is connected with the chi frame.The synchronous connecting device of this moment can be made by the pit gauge of original slide calliper rule.Synchronous connecting device can be as above-mentioned structure for only there being the single lever-type of a bar, can certainly be the multi-rod of being made up of side by side many bars, and they can be shaft-like, also can be sheet, or other any form, as long as guarantee that moving grid and chi frame are with moved further.
Described in the utility model simple for structure, easy to use in order to make, be preferably on moving grid connecting link and the chi frame connecting link and offer the lead tank that can hold signal conductor respectively, signal conductor is arranged in the lead tank.
Because moving grid is arranged in the sealed cavity that is opened on the blade, for the blade size not too large, must dwindle original moving grid size, the utility model is that the moving grid circuit is divided into more than 2 layers or 2 layers on the wiring board, the foregoing circuit plate is pressed into circuit module, the blank space that circuit is not set on circuit module simultaneously offers the components and parts caulking groove, and the microminiaturized components and parts on the moving grid are embedded in wherein.
Digital display device is digital display wiring board and the components and parts of go up installing thereof and display screen all to be packaged in form modularized circuit on the package board with waterproof and dampproof in the utility model.
Because the utility model still adopts straight-line displacement formula capacitor grid transducer as the shifting signal harvester, therefore all advantages that have traditional product, and the utility model can be made very similar forms of appearance and traditional product, thereby be easy to be accepted and convenient the use by the user, the moving grid circuit of sandwich construction distributes and has guaranteed that volume of the present invention can not enlarge, and only realize the mechanical connection of components and parts inside and outside the sealed cavity and conduct offering through hole on the seal plug, make the sealing of measuring mechanism more reliable, also easier realization, make protection against the tide of the present invention, water resistance is good, can normally use in water or in other liquid.And the utility model is simple in structure, and shop characteristic is good, easily realizes duplication of production in enormous quantities.
(4) description of drawings:
Fig. 1 is a kind of exemplary embodiment structural representation of the utility model.
Fig. 2 is chi frame, moving grid and a synchronous connecting device structural representation in the described embodiment of Fig. 1.
Fig. 3 is a digital display modular structure synoptic diagram in the described embodiment of Fig. 1.
Fig. 4 is a moving grid circuit module synoptic diagram in the described embodiment of Fig. 1.
Fig. 5 is the slice map of the described circuit module of Fig. 4.
(5) embodiment:
When specifically implementing the utility model, as shown in Figure 1, chi frame 1 and digital display device 2 cutting ferrules that are connected with it are on blade 3, offer tank on the blade 3, fixed grid 4 is fixed in the tank, be stamped seal cover board 6 on the tank, the rear end is by seal plug 8 shutoff, the synchronous connecting rod of being made by pit gauge 7 is divided into two fork arms for front end, and the form that the rear end fuses, two fork arms of its front end, one is arranged in the sealed cavity that is made of tank, seal cover board 6 and seal plug 8, as moving grid connecting link 71, its front end moving grid 5 interior with being arranged at sealed cavity is connected; Another fork arm is arranged at outside the sealed cavity, and as chi frame connecting link 72, its front end is connected with chi frame 1.Offer the appearance wire casing respectively on the relative side on two fork arms, signal conductor 9 is arranged at and holds in the wire casing and relative fixed with it; The through hole of offering on the seal plug 8 is passed in the rear end of synchronous connecting rod 7, and is more reliable in order to make sealing, and an O-ring seal 10 also can be established in the through hole of seal plug 8.Slide in order to make moving grid 5 be close proximity to fixed grid 4 surface, prevent from that it from fluctuating to cause measuring error, also can be provided with one between its upper end and the seal cover board 6 and compress shell fragment 11.The moving grid circuit is divided into more than 2 layers or 2 layers on the wiring board 15, and above-mentioned wiring board 15 is pressed into the circuit module shape, and the blank space that circuit is not set on circuit module simultaneously offers components and parts caulking groove 16, and the microminiaturized components and parts on the moving grid are embedded in wherein.Digital display device 2 is digital display wiring board 14 and the components and parts of go up installing thereof and display screen 12 all to be packaged on the package board 13 form modularized circuit.
Claims (9)
1, the full waterproof digimatic calipers of straight-line displacement capacitance-grid type, comprise the displacement signal harvester, digital display device and the measurement mechanism that constitutes by blade and chi frame, wherein the displacement signal harvester adopts straight-line displacement formula capacitor grid transducer, it is characterized in that: the blade of described slide calliper rule (3) is provided with a sealed cavity that is hedged off from the outer world, the fixed grid (4) and the moving grid (5) of straight-line displacement formula capacitor grid transducer all are arranged in the sealing cavity, one end termination of sealing cavity offers a through hole, through hole cooperates for both allowing synchronous connecting device (7) slide along through hole with synchronous connecting device (7) and signal conductor (9), guarantees that again the through hole seals isolated slipper seal to external world and cooperates; Digital display device (2) is the water-proof type digital display device.
2, the full waterproof digimatic calipers of straight-line displacement capacitance-grid type according to claim 1, it is characterized in that: described sealed cavity is by the tank of being located on the blade (3), the seal plug of seal cover board on the tank (6) and tank termination constitutes, and described through hole is opened on the plug (8).
3, the full waterproof digimatic calipers of straight-line displacement capacitance-grid type according to claim 1, it is characterized in that: described synchronous connecting device (7) comprises moving grid connecting link (71) and the chi frame connecting link (72) that is divided into the inside and outside both sides of sealed cavity at least, moving grid connecting link (71) is arranged in the sealed cavity, its front end and moving grid (5) are connected, chi frame connecting link (72) is arranged at outside the annular seal space, its front end is connected with chi frame (1), and moving grid connecting link (71) is connected to guarantee chi frame (1) and the same moved further of moving grid (5) with the rear end of chi frame connecting link (72).
4, the full waterproof digimatic calipers of straight-line displacement capacitance-grid type according to claim 2, it is characterized in that: described synchronous connecting device (7) comprises moving grid connecting link (71) and the chi frame connecting link (72) that is divided into the inside and outside both sides of sealed cavity at least, moving grid connecting link (71) is arranged in the sealed cavity, its front end and moving grid (5) are connected, chi frame connecting link (72) is arranged at outside the annular seal space, its front end is connected with chi frame (1), and moving grid connecting link (71) is connected to guarantee chi frame (1) and the same moved further of moving grid (5) with the rear end of chi frame connecting link (72).
5, according to the full waterproof digimatic calipers of any one described straight-line displacement capacitance-grid type in the claim 1～4, it is characterized in that: described synchronous connecting device (7) is the form that an as a whole and preceding end yoke in rear end becomes two bars, wherein a fork arm is arranged at and serves as moving grid connecting link (71) in the sealed cavity, its front end is connected with moving grid (5), another root fork arm is arranged at the sealed cavity outside, serve as chi frame connecting link (72), its front end is connected with chi frame (1).
6, according to the full waterproof digimatic calipers of any one described straight-line displacement capacitance-grid type in the claim 1～4, it is characterized in that: offer the lead tank that can hold signal conductor (9) respectively on moving grid connecting link (71) and chi frame connecting link (72), signal conductor (9) is arranged in the lead tank.
7, the full waterproof digimatic calipers of straight-line displacement capacitance-grid type according to claim 5, it is characterized in that: offer the lead tank that can hold signal conductor (9) respectively on moving grid connecting link (71) and chi frame connecting link (72), signal conductor (9) is arranged in the lead tank.
8, according to the full waterproof digimatic calipers of any one described straight-line displacement capacitance-grid type in the claim 1～4, it is characterized in that: the moving grid circuit is divided on the wiring board more than 2 layers or 2 layers (15), and above-mentioned wiring board (15) is pressed into the circuit module shape, the blank space that circuit is not set on circuit module simultaneously offers components and parts caulking groove (16), and the microminiaturized components and parts on the moving grid are embedded in wherein.
9, according to the full waterproof digimatic calipers of any one described straight-line displacement capacitance-grid type in the claim 1～4, it is characterized in that: digital display device 2 is that the components and parts of digital display wiring board (14) and upward installation thereof and display screen (12) all are packaged in upward formation modularized circuit of package board (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114785 CN2689166Y (en) | 2003-10-11 | 2003-10-11 | Linear displacement capacitance-grating style water-proof electronic calliper with digital display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114785 CN2689166Y (en) | 2003-10-11 | 2003-10-11 | Linear displacement capacitance-grating style water-proof electronic calliper with digital display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2689166Y true CN2689166Y (en) | 2005-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114785 Expired - Lifetime CN2689166Y (en) | 2003-10-11 | 2003-10-11 | Linear displacement capacitance-grating style water-proof electronic calliper with digital display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2689166Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853755A (en) * | 2012-09-29 | 2013-01-02 | 钟胜 | Absolute measurement linear micrometer produced by adopting capacitance sensor |
| CN106643977A (en) * | 2016-11-10 | 2017-05-10 | 东北农业大学 | Portable semi-automatic water level probe |
-
2003
- 2003-10-11 CN CN 200320114785 patent/CN2689166Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853755A (en) * | 2012-09-29 | 2013-01-02 | 钟胜 | Absolute measurement linear micrometer produced by adopting capacitance sensor |
| CN102853755B (en) * | 2012-09-29 | 2016-03-16 | 桂林市晶准测控技术有限公司 | Adopt the absolute measurement straight line micrometer that capacitor grid transducer makes |
| CN106643977A (en) * | 2016-11-10 | 2017-05-10 | 东北农业大学 | Portable semi-automatic water level probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20051228 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |