CN106686889A - TDS pen - Google Patents
TDS pen Download PDFInfo
- Publication number
- CN106686889A CN106686889A CN201611081963.4A CN201611081963A CN106686889A CN 106686889 A CN106686889 A CN 106686889A CN 201611081963 A CN201611081963 A CN 201611081963A CN 106686889 A CN106686889 A CN 106686889A
- Authority
- CN
- China
- Prior art keywords
- mainboard
- testing needle
- tds
- sliver
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention relates to a TDS pen. The TDS pen comprises a shell, a test probe and a mainboard. The test probe is arranged at the front end of the shell. A test probe contact conductive part is arranged on the test probe. A mainboard contact conductive part matching the test probe contact conductive part is arranged on the mainboard. The mainboard is fixedly arranged in the inner cavity of the shell through a detachable fixing structure. According to the TDS pen, the mainboard is directionally inserted in the insulation shell; and the conductive part on the mainboard is in contact matching with the test probe when the mainboard is inserted in place. When the mainboard is damaged, the mainboard can be dismounted for maintenance or is replaced by a new mainboard. The TDS pen can be utilized repeatedly.
Description
Technical field
The present invention relates to a kind of TDS pens.
Background technology
TDS pens are mainly made up of insulation crust, testing needle with the mainboard with circuit.In prior art, insulation crust and
The equal split of testing needle is arranged, and the front end of insulation crust is reserved with the perforation installed for testing needle, in order to prevent testing needle and mainboard
Between there is the phenomenon of loose contact, testing needle is welded at the front position of mainboard in prior art, insulation crust has
Front end-plate, is reserved with perforation on front end-plate；During assembling, the mainboard with testing needle is loaded into insulation by the rear end of insulation crust outer
In shell, testing needle is through in the perforation of front end-plate；Testing needle coordinates not tight with perforation inwall, it is necessary to outer to testing needle and insulation
Shell gluing is sealed.On the one hand TDS pens of the prior art have that mainboard is troublesome with testing needle welding procedure, on the other hand
During use, mainboard once damage if cannot detachable maintaining, TDS pens can only integrally be scrapped.
The content of the invention
It is an object of the invention to provide a kind of TDS pens, to solve prior art in mainboard and testing needle welding procedure
Trouble and mainboard cannot detachable maintaining technical problem.
For achieving the above object, the technical scheme is that：
A kind of TDS pens, including shell, testing needle and mainboard, testing needle is provided with testing needle and connects located at the front end of shell, testing needle
Tactile conductive part, mainboard is provided with for contacting the mainboard contact conductive part that conductive part is engaged with testing needle, and the mainboard leads to
Cross removable fixed structure to be fixedly arranged in the inner chamber of shell.
The guide frame for being oriented to assembling from back to front for the mainboard is provided with the inner chamber of shell, the guide frame includes
Located at the shell left and right sides, for for mainboard from it is rear to leading to load guide groove.
The left and right madial wall of shell is provided with the upper sliver and lower sliver of fore-and-aft direction extension, and the guide groove is formed at leads
Between bar and lower sliver, the length of upper sliver is less than the length of lower sliver, and the leading section of lower sliver is located at upper sliver leading section
Rear, the rear of upper sliver forms the avoidance space for avoiding operation button on mainboard.
The rear end end face of upper sliver and lower sliver is gradually to the inclined guiding surface in guide groove inner side from rear to front.
The testing needle conductive part is the outer peripheral face of testing needle, and mainboard contact conductive part is contacted with the outer peripheral face of testing needle matches somebody with somebody
Close.
The mainboard contact conductive part is the pad being arranged in the plate face of mainboard side, and pad has and corresponding testing needle
The pad end face of the planar structure that circumferential contact coordinates.
The mainboard is in convex, and the left and right sides of convex mainboard has the shoulder block for coordinating with shell block.
Reinforcement is provided with above testing needle on outer casing inner wall, between the downside of reinforcement and the outer peripheral face of testing needle
Space is entered with the leading section for mainboard.
Have on reinforcement gradually inclined for guiding the guiding face for coordinating with mainboard front end towards testing needle from the front to the back.
The removable fixed structure includes tail-hood of the spiral-lock in outer casing back, and mainboard is solid under the block effect of a tail-hood
It is scheduled on inside the shell.
The invention has the beneficial effects as follows：Mainboard in the present invention is provided with mainboard contact conductive part, and testing needle is provided with survey
Test point contacts conductive part, and mainboard is inserted to after enclosure, and testing needle contact conductive part contacts conductive part contact with mainboard and matches somebody with somebody
Close, mainboard is fixedly arranged in the inner chamber of shell by removable fixed structure, prevent mainboard from moving in inside the shell.The present invention passes through mainboard
The mode that is engaged between testing needle so that mainboard can be extracted out from inside the shell and keeped in repair, even if mainboard is damaged also will not
Lump-sum is scrapped, and TDS pens are repeatable to be utilized.
Description of the drawings
Fig. 1 is a kind of structural representation of TDS embodiment 1 of the invention（Mainboard is not installed）；
Fig. 2 is A-A in Fig. 1 to sectional view；
Fig. 3 is the structural representation of mainboard in a kind of TDS embodiment 1 of the invention；
Fig. 4 is a kind of explosive view of TDS embodiment 1 of the invention；
Fig. 5 is a kind of overall structure diagram of TDS embodiment 1 of the invention；
Fig. 6 is A-A in Fig. 5 to sectional view；
Fig. 7 is the enlarged drawing of local I in Fig. 6.
Specific embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
A kind of specific embodiment of TDS pens of the present invention, as shown in Figures 1 to 7, the TDS pens include shell, testing needle 2 with
And mainboard 3.Shell is insulation crust 1, and located at the front end of insulation crust 1, insulation crust 1 includes being molded in survey testing needle 2
Front end-plate 11 on the outer peripheral face of test point 2, front end-plate 11 and testing needle 2 form overall structure.Preferably, the one of insulation crust 1 is noted
Molded, the leading section of testing needle 2 is located at outside insulation crust, and rearward end is located inside insulation crust.After shaping, testing needle 2
Outer peripheral face is closely linked with the front end-plate 11 of insulation crust.The periphery of testing needle 2 has needle guard 12 and boss 13, needle guard 12
Front end stretch out outside insulation crust, rear end is located inside insulation crust, and the two ends of testing needle 2 are exposed at respectively the outer of needle guard 12
Face, boss 13 is located at the front side of front end-plate, and needle guard 12 and boss 13 constitute needle stand structure, it is ensured that the stability of testing needle, it is to avoid
Two testing needles activity and the phenomenon that is short-circuited.
Mainboard 3 is from rear to leading to being inserted into insulation crust 1 and be fixedly arranged in insulation crust by removable fixed structure
In chamber, removable fixed structure includes tail-hood 18 of the spiral-lock in insulation crust rear end, the mainboard under the block effect of a tail-hood 18
It is fixed on inside insulation crust.The downside plate face of mainboard 3 is provided with and the one-to-one pad 4 of testing needle 2, the downside of pad 4
Face is the pad end face of the planar structure being engaged with the outer peripheral face of corresponding testing needle, and pad 4 constitutes mainboard contact conductive part,
The outer peripheral face of testing needle constitutes testing needle contact conductive part.Fore-and-aft direction extension is equipped with the left and right madial wall of insulation crust 1
Upper sliver 5 and lower sliver 6, form the guide groove for extending along the longitudinal direction between upper sliver 5 and lower sliver 6, the guide groove is constituted
Guide frame.During installation, the left and right sides edge of mainboard 3 is inserted into the guide groove of respective side respectively by rear to front, is promoted forward
Mainboard 3 makes mainboard be oriented to sliding along guide groove；When mainboard 3 is inserted in place, the downside of pad 4 is conductive with the outer peripheral face of testing needle 2
It is engaged.
In the present embodiment, the rear end end face of upper sliver 5 and lower sliver 6 is from rear to front gradually inclined to guide groove inner side
Guiding surface.In order to avoid the button on upper sliver 5 and mainboard 3 is interfered, the length of upper sliver 5 is less than the length of lower sliver 6, under
Rear of the rear end of sliver in upper sliver rear end, the rear of upper sliver forms empty for avoiding the avoidance of operation button on mainboard
Between.In other embodiments, can be to open up guide groove on the madial wall of insulation shell, without the need for arranging upper and lower sliver.
The both sides of the edge of mainboard 3 are provided with the block position limiting structure for coordinating with insulation crust block, main in the present embodiment
Plate 3 is in " convex " font, and mainboard includes front panel portion 31 and rear plate portion 32, and pad 4 is arranged in the downside plate face of front panel portion 31, back plate
The both sides of the edge in portion 32 form shoulder block, and shoulder block constitutes block position limiting structure.Insulation crust 1 includes big hole section 14 and positioned at macropore
The aperture section 15 of Duan Qianduan, forms a step 16 between big hole section 14 and aperture section 15, step 16 has positioned at insulation crust
Internal step surface, the step surface constitutes the block position limiting structure for coordinating with mainboard block；When mainboard 3 is inserted in place
When, the shoulder block and the step surface block inside insulation crust of " convex " font mainboard coordinate, and the front panel portion 31 of mainboard 3 is located at outside insulation
In the aperture section 15 of shell, the downside of pad 4 coordinates with the outer peripheral face conductive contact of testing needle, and the rear plate portion 32 of mainboard is stayed in greatly
In hole section 14.Reinforcement 7 is provided with above testing needle on insulation crust inwall, the downside of reinforcement 7 is outer with testing needle 2
There is the space entered for mainboard 3 between side face, the downside of reinforcement 7 constitute for the spacing cooperation of the upper side of mainboard 3
Confined planes 71.The rear side of reinforcement 7 has from the front to the back gradually to the inclined guiding face 72 of testing needle.
Pad 8 is provided with the periphery of testing needle 2 on the front end-plate 11 of insulation crust 1, for protecting testing needle.The side of pad 8
U-type groove 81 is offered on wall, when TDS penholders enter to be tested in water, the air in pad 8 can be discharged from U-type groove 81, prevent bubble
Produce.The cap for brush 17, step and the spacing cooperation of the cap for brush 17 of insulation crust are connected with the aperture section 15 of insulation crust 1.For side
Just the cap for brush 17 is plugged, and aperture section 15 is the throat structure that is gradually reduced from back to front, and the lateral wall of aperture section 15 is from rear to front
Gradually to the inclined-plane that hole is tilted.Meanwhile, the top and bottom sidewall of aperture section 15 is provided with the strip bulge 151 of fore-and-aft direction extension,
So the cap for brush 17 is easily covered and not allowed easy to fall off.The top and bottom sidewall of the cap for brush 17 is provided with the anti-skid bulge of left and right directions extension
171, prevent rubber sleeve to be easy to plug.The inner side of tail-hood 18 is provided with the battery case 181 for installing button cell and for connecting
The conducting strip of battery and mainboard（It is not drawn into figure）.The upper side wall of big hole section 14 is provided with the window for showing numerical value, lower wall
Middle part be provided with groove, the bottom land of groove is provided with three parallel slotted holes 9 being spaced apart along insulation crust length direction, three
Individual slotted hole 9 is fabrication hole, because insulation crust cavity is long, also an overall structure is formed with testing needle, in insulation
Cavity pocket of outer cover mid portion adds three fabrication holes, realizes positioning, makes injection than more uniform during cast, reduces substandard products amount.Insulation is outer
Face paster is pasted with shell 1, face paster seals three slotted holes 9.
When the TDS pens are assembled, mainboard 3 is oriented in insertion insulation crust 1 by the rear end of insulation crust 1, mainboard 3 is along guide groove
Guiding movement, the leading section of mainboard 3 is extend into the space between reinforcement 7 and testing needle 2, when outside the shoulder block of mainboard and insulation
The boss face block of shell coordinates, i.e., mainboard is inserted in place, and the pad 4 of the downside of mainboard 3 is matched somebody with somebody with the outer peripheral face conductive contact of testing needle 2
Close, cover a tail-hood, prevent mainboard 3 from moving in insulation crust, and cover the cap for brush.
In other embodiments, mainboard contact conductive part can also be the conducting strip in mainboard front end surface, test
Pin contact conductive part can also be the rear end end face of testing needle, and mainboard contact conductive part is matched somebody with somebody with the rear end end face top pressure of testing needle
Close；Or the end of mainboard arranges conducting strip, while arranging pad in the plate face of downside, conducting strip is matched somebody with somebody with the end top pressure of testing needle
Close, pad is engaged with the outer peripheral face of testing needle.Removable fixed structure can also be other forms, such as can lead in insulation crust
Correspondence opens up installing hole on plate, realizes that mainboard is fixed in the inner chamber of insulation crust by being screwed screw in installing hole, or
Arrange on mainboard and arrange in flange, insulation crust connecting plate, flange is connected by screw with connecting plate realizes that mainboard is fixed on
In insulation crust.Battery case can be not provided with tail-hood, battery fastening structure can be set in the upside of mainboard, battery is fixed on
On mainboard.Slotted hole number on the wall of insulation crust side can need voluntarily to arrange according to Shooting Technique, can for four or
Other.Can not also sticking veneer paster after injection.Insulation crust can not be integrative-structure, such as the big hole section of insulation crust and little
Hole section distinguishes integrated injection molding, and testing needle forms an overall structure with aperture section, and big hole section coordinates with aperture section inserting
Together.
Claims (10)
1. a kind of TDS pens, including shell, testing needle and mainboard, testing needle is located at the front end of shell, it is characterised in that：Testing needle
Testing needle contact conductive part is provided with, mainboard is provided with for contacting the mainboard contact conduction that conductive part is engaged with testing needle
Portion, the mainboard is fixedly arranged in the inner chamber of shell by removable fixed structure.
2. TDS pens according to claim 1, it is characterised in that：It is provided with the inner chamber of shell for the mainboard from back to front
Be oriented to assembling guide frame, the guide frame include located at the shell left and right sides, for for mainboard from it is rear to leading to
The guide groove of loading.
3. TDS pens according to claim 2, it is characterised in that：The left and right madial wall of shell is provided with extend in front and back upper
Sliver and lower sliver, the guide groove is formed between sliver and lower sliver, and the length of upper sliver is less than the length of lower sliver, under
The leading section of sliver is located at the rear of upper sliver leading section, is formed for avoiding between the rear end of upper sliver and the rear end of lower sliver
The avoidance space of operation button on mainboard.
4. TDS pens according to claim 3, it is characterised in that：The rear end end face of upper sliver and lower sliver be by it is rear extremely
The front gradually inclined guiding surface on the inside of guide groove.
5. TDS pens according to claim 1-4 any one, it is characterised in that：The testing needle conductive part is testing needle
Outer peripheral face, mainboard contact conductive part be engaged with the outer peripheral face of testing needle.
6. TDS pens according to claim 5, it is characterised in that：The mainboard contact conductive part is to be arranged at mainboard side
Pad in plate face, pad has the pad end face of the planar structure being engaged with the outer peripheral face of corresponding testing needle.
7. TDS pens according to claim 1-4 any one, it is characterised in that：The mainboard is in convex, convex master
The left and right sides of plate has the shoulder block for coordinating with shell block.
8. TDS pens according to claim 1-4 any one, it is characterised in that：In the top of testing needle on outer casing inner wall
Reinforcement is provided with, there is the leading section for mainboard to enter space between the downside of reinforcement and the outer peripheral face of testing needle.
9. TDS pens according to claim 8, it is characterised in that：Have on reinforcement and gradually incline towards testing needle from the front to the back
The oblique guiding face for guiding cooperation with mainboard front end.
10. TDS pens according to claim 1-4 any one, it is characterised in that：The removable fixed structure includes spiral-lock
In a tail-hood of outer casing back, mainboard is fixed on inside the shell under the block effect of a tail-hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081963.4A CN106686889B (en) | 2016-11-30 | 2016-11-30 | TDS pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081963.4A CN106686889B (en) | 2016-11-30 | 2016-11-30 | TDS pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686889A true CN106686889A (en) | 2017-05-17 |
| CN106686889B CN106686889B (en) | 2021-08-27 |
Family
ID=58866970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611081963.4A Active CN106686889B (en) | 2016-11-30 | 2016-11-30 | TDS pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106686889B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067150U (en) * | 1990-03-17 | 1990-12-12 | 饶德仁 | Diagnostic pencil for detecting acupuncture point of ear |
| US20090246083A1 (en) * | 2008-03-25 | 2009-10-01 | Hm Digital, Inc. | Timing based method and apparatus for monitoring drinking water purity and encouraging routine testing of drinking water purity |
| CN204719038U (en) * | 2015-06-29 | 2015-10-21 | 浙江利尔达物联网技术有限公司 | A kind of TDS Pen type humidometer with Anti-bubble structure |
| CN104990960A (en) * | 2015-06-30 | 2015-10-21 | 佛山市云米电器科技有限公司 | TDS detector pen |
| CN204964436U (en) * | 2015-09-07 | 2016-01-13 | 浙江利尔达物联网技术有限公司 | TDS surveys water -color paintbrush with quick temperature -sensing |
| US20160031724A1 (en) * | 2013-03-15 | 2016-02-04 | Zero Technologies, Llc | Systems, devices, and methods of water filtration |
| CN205072867U (en) * | 2015-09-08 | 2016-03-09 | 思澜科技（成都）有限公司 | Be used for biological impedance measuring to survey pen |
| CN205149378U (en) * | 2015-11-20 | 2016-04-13 | 孙多燕 | Three -dimensional drawing pen |
| CN206196141U (en) * | 2016-11-30 | 2017-05-24 | 郑州跃龙电子科技有限公司 | Tds pen |
-
2016
- 2016-11-30 CN CN201611081963.4A patent/CN106686889B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067150U (en) * | 1990-03-17 | 1990-12-12 | 饶德仁 | Diagnostic pencil for detecting acupuncture point of ear |
| US20090246083A1 (en) * | 2008-03-25 | 2009-10-01 | Hm Digital, Inc. | Timing based method and apparatus for monitoring drinking water purity and encouraging routine testing of drinking water purity |
| US20160031724A1 (en) * | 2013-03-15 | 2016-02-04 | Zero Technologies, Llc | Systems, devices, and methods of water filtration |
| CN204719038U (en) * | 2015-06-29 | 2015-10-21 | 浙江利尔达物联网技术有限公司 | A kind of TDS Pen type humidometer with Anti-bubble structure |
| CN104990960A (en) * | 2015-06-30 | 2015-10-21 | 佛山市云米电器科技有限公司 | TDS detector pen |
| CN204964436U (en) * | 2015-09-07 | 2016-01-13 | 浙江利尔达物联网技术有限公司 | TDS surveys water -color paintbrush with quick temperature -sensing |
| CN205072867U (en) * | 2015-09-08 | 2016-03-09 | 思澜科技（成都）有限公司 | Be used for biological impedance measuring to survey pen |
| CN205149378U (en) * | 2015-11-20 | 2016-04-13 | 孙多燕 | Three -dimensional drawing pen |
| CN206196141U (en) * | 2016-11-30 | 2017-05-24 | 郑州跃龙电子科技有限公司 | Tds pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106686889B (en) | 2021-08-27 |
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