CN201053960Y - PH value automatic measurement control instrument - Google Patents
PH value automatic measurement control instrument Download PDFInfo
- Publication number
- CN201053960Y CN201053960Y CNU2007200516326U CN200720051632U CN201053960Y CN 201053960 Y CN201053960 Y CN 201053960Y CN U2007200516326 U CNU2007200516326 U CN U2007200516326U CN 200720051632 U CN200720051632 U CN 200720051632U CN 201053960 Y CN201053960 Y CN 201053960Y
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- screw mandrel
- supporting plate
- frame
- value automatic
- automatic measurement
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Abstract
The utility model provides a PH value automatic measuring controller which consists of an electric motor, two electrodes, an active screw mandrel, a passive screw mandrel, two groups of guide modules, a direction control module and a machine rack; wherein, the electric motor is connected with the active screw mandrel and the passive screw mandrel; the two groups of guide modules are spirally connected with the active screw mandrel and the passive screw mandrel, and are fixed and connected with the upper ends of the two electrodes; the direction control module is connected with one of the two groups of guide modules; the lower part of the direction control module is connected with an acid blocking piece, and is arranged in the airproof cavity of the machine rack. The PH value automatic measuring controller has the advantages of compact structure, small body, low cost, easy use and good airtightness of the seal cavity.
Description
Technical field
The utility model relates to pH value automatic measuring instrument meter apparatus, specifically is meant pH value automatic measurement and control instrument.
Background technology
At present, a large amount of a kind of patent No.s used of factory are two glass electrode pH value automatic detection devices of 00268773.9, and this device is made up of A, B two arrays of electrodes, and every group of electrode mainly is made up of parts such as electrode, motor, pinion wheel, tooth bars respectively.So it is to be driven by two motors, so just improved the cost of device; Moving up and down of electrode realizes by gear, rack for transmission, certain stroke because electrode moves up and down, so the length of tooth bar just will equal the stroke that electrode moves up and down at least, and electrode is when moving upward, tooth bar must extend upwardly, whole like this device is just very high, and volume is very big, seems very heavy; It is to change in the annular seal space of being made up of glass protecting cover, pallet and mainframe box that this device is changed electrode, and electrode has certain length, so the volume of annular seal space must be very big; And must unload cloche when changing electrode, so just convenient inadequately, the sealing of annular seal space also can not get assurance.Because looking, above-mentioned shortcoming, whole device just seem that volume is big, relatively heavier, mechanism is compact inadequately.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of compact conformation, volume is little, cost is low, and is easy to use, the pH value automatic measurement and control instrument of the good airproof performance of annular seal space.
The purpose of this utility model realizes by following proposal: this pH value automatic measurement and control instrument, comprise motor, two electrodes, initiatively screw mandrel, driven screw mandrel, two groups of guidance sets, Direction Control Unit, frame, motor drives with active, driven screw mandrel and is connected, initiatively, driven screw mandrel is corresponding is threaded with two groups of guidance sets, two groups of guidance sets are corresponding fixedlys connected with two electrodes upper ends, Direction Control Unit and two groups of corresponding being connected of guidance set, the Direction Control Unit bottom is connected with the sour piece of retaining, and is located in the annular seal space of frame.
Described motor is one, and motor drives with active, driven screw mandrel by the engaging tooth wheels and is connected.
Described motor is two, and motor shaft directly drives with active, driven screw mandrel and is connected the switched in opposite of described two motors.
For realize better the utility model, guidance set comprise guide pole, with the spigot nut of its pivot bush unit, Direction Control Unit comprise the direction control lever, with the fixedly sleeved cam in its top; The engaging tooth wheels comprise active, the follower gear that is meshed; Motor is fixedly mounted on the backboard of frame, and is connected with the driving of active screw mandrel upper end, driving gear, the corresponding initiatively top of screw mandrel, driven screw mandrel that is located at of follower gear; Initiatively the upper and lower part of screw mandrel, driven screw mandrel and two guide poles respectively with the vertical socket of upper and lower back up pad of frame, the upper, middle and lower portion of direction control lever respectively with the upper and lower back up pad and the vertical socket of supporting plate of frame; Two spigot nuts are corresponding to respectively initiatively screw mandrel, driven wire rod thread are connected, and fixedly connected with the electrode upper end, the side of two spigot nuts is provided with pulling block, the opposite and respectively corresponding cooperation interlocking of the symmetrical twice spiral chute of offering of its rotation direction with the cam outer circumference surface; The position of lower supporting plate, corresponding two electrodes of supporting plate has electrode hole; Fixedly connected with the sour piece of retaining in the bottom of direction control lever, positive and negative two the maximum pendulum angle positions that keep off sour piece are corresponding respectively with two electrode hole positions on the supporting plate.
The extreme lower position, the extreme higher position that are positioned at spiral chute with two pulling blocks are corresponding, and the rotation angle range of described cam is-60 °～0 °～60 °.
The sealing cover two ends and the supporting plate of described annular seal space are installed on the backboard of frame by bolt, and amplexiform bottom the upside of sealing cover and the lower supporting plate, and bonding outside the downside of sealing cover and the supporting plate.
Described frame is provided with housing, and its backboard with lower supporting plate top and frame is connected.
For the loading and unloading of more convenient electrode, the position of fixedlying connected in described spigot nut and electrode upper end is fork-shaped, and rabbet its upper end with electrode, and fixedly connected with electrode by nut.
Principle of work of the present utility model is: adopt a motor to drive, when motor rotates, drive driving gear, the rotation of screw mandrel positive dirction, engagement by active, follower gear, follower gear, the same time counter-rotation of screw mandrel, perhaps adopt the motor direct-drive active of two switched in opposite, driven screw mandrel, make active, driven screw mandrel counter-rotation; Because spigot nut and screw mandrel are thread connection, and be to be enclosed within on the guide pole, can not rotate, so when active, follower gear, screw mandrel rotation, two spigot nuts will be respectively along rising of guide pole, and a decline is contained in electrode movement on the spigot nut thereby drive two by nut, one moves upward, and one moves downward.The electrode of measuring and washing is replaced mutually.Spigot nut is in ascending and descending process, the shifting block that is contained in above it is to rabbet with the spiral chute of cam for some time, thereby force cam and the positive and negative rotation of direction control lever, drive the sour piece of retaining simultaneously and block or leave the electrode hole of on supporting plate, being opened because of the electrode measurement pH value.
The utility model has following advantage and effect with respect to prior art: use a motor to drive, thus reduced the cost of instrument, and simplified control system widely; Employing can make the height of instrument, volume reduce widely by the structure that gear, screw mandrel, spigot nut drive electrode move up and down; Use two motors to drive, so just save two gears; Control can be controlled two motors respectively two screw mandrels can be rotated separately flexibly; The pH value signal of measurement is not interrupted.
Can not tear open in the use of annular seal space after installation of forming by sealing cover, supporting plate and frame; The replacing electrode carries out above lower supporting plate, only need open housing and get final product, and has reduced the volume of whole annular seal space, and need not unload the sealing cover of annular seal space, just can change electrode easily, and the sealing of annular seal space also is guaranteed; Annular seal space is made up of sealing cover, supporting plate and frame, and wherein shrouding and supporting plate are to be fixed by bolts on the backboard of frame, and sticking dead with industrial binder between the two, further guarantees sealing.
Description of drawings
Fig. 1 is the structural representation of the utility model pH value automatic measurement and control instrument.
Fig. 2 is the local structure for amplifying synoptic diagram of I shown in Figure 1 portion.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment one
As shown in Figure 1, this pH value automatic measurement and control instrument, comprise motor 2, two electrodes 12, initiatively screw mandrel 6-1, driven screw mandrel 6-2, two groups of guidance sets, Direction Control Unit, frame 15, guidance set comprise guide pole 7 and with the spigot nut 8 of its pivot bush unit, Direction Control Unit comprises direction control lever 16 and the cam 4 fixedly sleeved with its top; The engaging tooth wheels comprise active, follower gear 3-1, the 3-2 that is meshed; Motor 2 is fixedly mounted on the backboard 15-1 of frame 15, and is connected with the driving of active screw mandrel 6-1 upper end, driving gear, the corresponding initiatively top of screw mandrel, driven screw mandrel 6-1,6-2 that is located at of follower gear 3-1,3-2; Initiatively the upper and lower part of screw mandrel, driven screw mandrel 6-1,6-2 and two guide poles 7 respectively with the vertical socket of upper and lower back up pad 15-2,15-3 of frame 15, the upper, middle and lower portion of direction control lever 16 respectively with upper and lower back up pad 15-2,15-3 and the vertical socket of supporting plate 15-4 of frame 15; Two spigot nuts 8 are corresponding to respectively initiatively screw mandrel, driven screw mandrel 6-1,6-2 are threaded, and fixedly connected with electrode 12 upper ends, as shown in Figure 1, 2, the side of two spigot nuts 8 is provided with pulling block 10, the opposite and symmetrical twice spiral chute of the offering 5 respectively corresponding cooperation interlockings of its rotation direction with cam 4 outer circumference surfaces; The position of lower supporting plate 15-3, corresponding two electrodes 12 of supporting plate 15-4 has electrode hole 17; Fixedly connected with the sour piece 14 of retaining in the bottom of direction control lever 16, positive and negative two the maximum pendulum angle positions that keep off sour piece 14 are corresponding respectively with two electrode hole 17 positions on the supporting plate 15-4.
As shown in Figure 1, 2, the extreme lower position, the extreme higher position that are positioned at spiral chute 5 with two pulling blocks 10 are corresponding, and the rotation angle range of described cam 4 is-60 °～0 °～60 °.
As shown in Figure 1, sealing cover 11 two ends and the supporting plate 15-4 of the annular seal space 13 of frame 15 are installed on the backboard 15-1 of frame by bolt, and amplexiform bottom the upside of sealing cover 11 and the lower supporting plate, and bonding outside the downside of sealing cover 11 and the supporting plate 15-4.Frame 15 also is provided with housing 1, and it is connected with the backboard 15-1 of lower supporting plate 15-3 top and frame.
For the loading and unloading of more convenient electrode, described spigot nut 8 is fork-shaped with the position of fixedlying connected in electrode 12 upper ends, the upper end interlocking of itself and electrode 12, and fixedly connected with electrode 12 by nut 9.
This pH value automatic measurement and control instrument is performed such work: when motor 2 rotates, drive driving gear 3-1, initiatively screw mandrel 6-1 positive dirction rotation, engagement by active, follower gear 3-1,3-2, follower gear 3-2, the same time counter-rotation of driven screw mandrel 6-2, two spigot nuts 8 are respectively simultaneously along 7 one risings of guide pole, and a decline is moved simultaneously thereby drive two electrodes 12, one moves upward, and one moves downward.The electrode of measuring and washing is replaced mutually.Spigot nut 8 is in process of rising or falling, and shifting block 10 is to rabbet with the spiral chute 5 of cam 4 for some time, thereby orders about cam 4 and the 16 positive and negative rotations of direction control lever, and the sour piece 14 of drive retaining blocks or leave the electrode hole 17 on the supporting plate 15-4 simultaneously.
Embodiment two
The structure and the embodiment one of this pH value automatic measurement and control instrument are basic identical, and just the motor 2 of this pH value automatic measurement and control instrument is two, and motor shaft directly drives with active, driven screw mandrel 6-1,6-2 and is connected the switched in opposite of described two motors 2.
This pH value automatic measurement and control instrument is performed such work: two motors 2 simultaneously counter-rotation or control counter-rotation separately, driving same time opposite direction of active screw mandrel 6-1, driven screw mandrel 6-2 or independent control rotates, two spigot nuts 8 are respectively simultaneously along 7 one risings of guide pole, a decline, or control two spigot nuts 8 separately and rise, descend along guide pole respectively, thereby driving two electrodes 12 moves or independently moving simultaneously, one moves upward, and one moves downward.The electrode of measuring and washing is replaced mutually.Spigot nut 8 is in process of rising or falling, and shifting block 10 is to rabbet with the spiral chute 5 of cam 4 for some time, thereby orders about cam 4 and the 16 positive and negative rotations of direction control lever, and the sour piece 14 of drive retaining blocks or leave the electrode hole 17 on the supporting plate 15-4 simultaneously.
As mentioned above, just can realize the utility model preferably.
Claims (8)
1.PH value automatic measurement and control instrument, it is characterized in that: comprise motor, two electrodes, initiatively screw mandrel, driven screw mandrel, two groups of guidance sets, Direction Control Unit, frame, motor drives with active, driven screw mandrel and is connected, initiatively, driven screw mandrel is corresponding is threaded with two groups of guidance sets, two groups of guidance sets are corresponding fixedlys connected with two electrodes upper ends, Direction Control Unit and two groups of guidance sets are selected one and are connected, the Direction Control Unit bottom is connected with the sour piece of retaining, and is located in the annular seal space of frame.
2. according to the described pH value automatic measurement and control of claim 1 instrument, it is characterized in that: described motor is one, and motor drives with active, driven screw mandrel by the engaging tooth wheels and is connected.
3. according to the described pH value automatic measurement and control of claim 1 instrument, it is characterized in that: described motor is two, and motor shaft directly drives with active, driven screw mandrel and is connected the switched in opposite of described two motors.
4. according to each described pH value automatic measurement and control instrument of claim 1～3, it is characterized in that: described guidance set comprise guide pole, with the spigot nut of its pivot bush unit, Direction Control Unit comprise the direction control lever, with the fixedly sleeved cam in its top; The engaging tooth wheels comprise active, the follower gear that is meshed; Motor is fixedly mounted on the backboard of frame, and is connected with the driving of active screw mandrel upper end, driving gear, the corresponding initiatively top of screw mandrel, driven screw mandrel that is located at of follower gear; Initiatively the upper and lower part of screw mandrel, driven screw mandrel and two guide poles respectively with the vertical socket of upper and lower back up pad of frame, the upper, middle and lower portion of direction control lever respectively with the upper and lower back up pad and the vertical socket of supporting plate of frame; Two spigot nuts are corresponding to respectively initiatively screw mandrel, driven wire rod thread are connected, and fixedly connected with the electrode upper end, the side of two spigot nuts is provided with pulling block, the opposite and respectively corresponding cooperation interlocking of the symmetrical twice spiral chute of offering of its rotation direction with the cam outer circumference surface; The position of lower supporting plate, corresponding two electrodes of supporting plate has electrode hole; Fixedly connected with the sour piece of retaining in the bottom of direction control lever, positive and negative two the maximum pendulum angle positions that keep off sour piece are corresponding respectively with two electrode hole positions on the supporting plate.
5. according to the described pH value automatic measurement and control of claim 4 instrument, it is characterized in that: extreme lower position, extreme higher position that the rotation angle range of described cam and two pulling blocks are positioned at spiral chute are corresponding, are-60 °～0 °～60 °.
6. according to the described pH value automatic measurement and control of claim 4 instrument, it is characterized in that: the sealing cover two ends of described annular seal space and supporting plate are installed on the backboard of frame by bolt, and amplexiform the upside of sealing cover and lower supporting plate bottom, and bonding outside the downside of sealing cover and the supporting plate.
7. according to the described pH value automatic measurement and control of claim 4 instrument, it is characterized in that: described frame is provided with housing, and its backboard with lower supporting plate top and frame is connected.
8. according to the described pH value automatic measurement and control of claim 4 instrument, it is characterized in that: the position of fixedlying connected in described spigot nut and electrode upper end is fork-shaped, and rabbet its upper end with electrode, and fixedly connected with electrode by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200516326U CN201053960Y (en) | 2007-05-18 | 2007-05-18 | PH value automatic measurement control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200516326U CN201053960Y (en) | 2007-05-18 | 2007-05-18 | PH value automatic measurement control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053960Y true CN201053960Y (en) | 2008-04-30 |
Family
ID=39393622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200516326U Expired - Fee Related CN201053960Y (en) | 2007-05-18 | 2007-05-18 | PH value automatic measurement control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053960Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424657B (en) * | 2008-12-15 | 2012-04-25 | 杭州电子科技大学 | Ph automatic continuous detection device |
-
2007
- 2007-05-18 CN CNU2007200516326U patent/CN201053960Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424657B (en) * | 2008-12-15 | 2012-04-25 | 杭州电子科技大学 | Ph automatic continuous detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20110518 |