CN205280686U - Modular acid base titration pipe - Google Patents
Modular acid base titration pipe Download PDFInfo
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- CN205280686U CN205280686U CN201521045302.7U CN201521045302U CN205280686U CN 205280686 U CN205280686 U CN 205280686U CN 201521045302 U CN201521045302 U CN 201521045302U CN 205280686 U CN205280686 U CN 205280686U
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- valve body
- cock
- hole
- fluid passage
- epimere
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Abstract
The utility model discloses a modular acid base titration pipe, include by the upper segment valve body, the just cock valve body of acid and alkali -resistance is formed to middle section valve body and hypomere valve body, the top of upper segment valve body is equipped with the feed liquor hole, the feed liquor hole that meter buret inserted the upper segment valve body, through locking sealing mechanism sealing connection between meter buret and the valve body upper segment, be equipped with the cock hole in the valve body of middle section, hypomere valve body bottom is equipped with the liquid outlet, be equipped with the last fluid passage in intercommunication cock hole and feed liquor hole in the cock valve body, and the lower fluid passage of intercommunication cock hole and liquid outlet, sealed cock of inserting the acid and alkali -resistance in the cock hole of middle section valve body, the small -bore end of cock is equipped with the locking bolt, the screw thread even compresses tightly the nut on the locking bolt, the cover has the spring on compressing tightly the locking bolt between nut and the middle section valve body, fluid passage in the middle of being equipped with in the cock, go up fluid passage, middle fluid passage reaches down, and fluid passage forms the dropping liquid passageway. The utility model discloses there is the advantage that can be fit for acidity and titration of alkaline liquid and dismouting convenient to use.
Description
Technical field
This utility model relates to chemical analysis burette field.
Background technology
The burette that current chemical analysis uses is divided into acid buret and base buret two kinds. Although acid buret has a performance accuracy advantages of higher, but also have the disadvantages that (1) acid buret can only titration acidic liquid, it is impossible to titration akaline liquid; (2) acid burette in batch production process in its glass cock valve the ground of faucet hole cannot accomplish completely the same, cause that cock suitable with faucet hole in each acid buret is individually unique, cock in the glass cock valve used at present in use very easily skids off from faucet hole, not only result in volumetric solution to flow out and make analysis the failure of an experiment, and after cock landing is broken into pieces, because being difficult to find the cock of adaptation to cause whole acid buret to be scrapped; (3) gauge line of acid buret and glass cock valve are to be connected integral by glass tubing, and glass tubing is very fragile and easy fracture, and after glass tubing ruptures, whole acid buret is also eliminated. The shortcoming of base buret is: (1) base buret can only titration akaline liquid, it is impossible to titration acidic liquid; (2) base buret is to adopt to fill in bead in elastic latex tubing to control flow and the speed of volumetric solution, and not only performance accuracy is poor, and latex tubing is easily aging, it is necessary to periodic replacement, and use cost is high.
Utility model content
The purpose of this utility model is to provide a kind of combination type acid base titration pipe that can simultaneously be suitable for acidic liquid and akaline liquid titration, performance accuracy height and easy disassembly.
For achieving the above object, this utility model adopts the technical scheme that described combination type acid base titration pipe, including gauge line, and by epimere valve body, the faucet valve of stage casing valve body and hypomere valve body composition and acid and alkali-resistance, the inlet opening that gauge line inserts it is provided at the top of epimere valve body, described gauge line inserts in the inlet opening of epimere valve body, it is connected by lock sealing mechanism seals between gauge line with valve body epimere, stage casing valve body is provided with radially through stage casing valve body and tapered faucet hole, the bottom of hypomere valve body is provided with liquid outlet, faucet valve is provided with the upper fluid passage of connection faucet hole and inlet opening, and the lower fluid passage of connection faucet hole and liquid outlet, in the faucet hole of stage casing valve body, movable sealing is inserted with tapered and acid and alkali-resistance cock, small-caliber end in cock is provided with clamping screw, threaded on the clamping screw of cock have clamping nut, clamping screw between clamping nut and stage casing valve body is arranged with spring, the two ends of spring are against on clamping nut and stage casing valve body respectively, cock has the trend that sealing is pressed on faucet hole inwall all the time under the elastic force effect of spring, cock is provided with the intermediate liquid passage of radially through cock, when cock turn to its intermediate liquid passage connect upper fluid passage and lower fluid passage simultaneously time, upper fluid passage, intermediate liquid passage and lower fluid passage are collectively forming dropping liquid passage, when cock turns to its intermediate liquid passage and upper fluid passage and lower fluid passage is staggered, dropping liquid passage is just cut-off.
Further, aforesaid combination type acid base titration pipe, wherein: the structure of described lock sealing mechanism is: include lock nut, and can insert and seal the sealing ring in gap between gauge line and epimere valve body, the valve outer wall of epimere valve body is provided with external screw thread, lock nut is provided with stairstepping through hole, the aperture of the small-bore through hole of stairstepping through hole just allows gauge line to pass through, the heavy caliber through hole of stairstepping through hole is can with the internal thread hole of the external screw thread phase threaded engagement on epimere valve outer wall, when sealing ring inserts and seal between gauge line and epimere valve body behind gap, and sealing ring is pressed between gauge line and epimere valve body in gap by the cascaded surface of its stairstepping through hole by the lock nut of epimere valve body screw thread locking, epimere valve body is made to seal locking mutually with gauge line.
Further, aforesaid combination type acid base titration pipe, wherein: the one end touched at clamping nut and spring interface is provided with the first spring locating slot, the body wall that stage casing valve body and spring interface touch is provided with the second spring locating slot, when clamping nut matches locking with the clamping screw in the cock inserting faucet hole, the two of spring correct and lay respectively in the first spring locating slot and the second spring locating slot.
Further, aforesaid combination type acid base titration pipe, wherein: the heavy caliber end in cock is provided with rotary handle.
Further, aforesaid combination type acid base titration pipe, wherein: described lower fluid passage includes the second liquid passage of first time fluid passage and first time fluid passage of connection and the liquid outlet communicated with faucet hole, and the bore of second liquid passage is less than the bore of first liquid passage.
By the enforcement of technique scheme, the beneficial effects of the utility model are: (1) can be suitable for acidic liquid and akaline liquid titration simultaneously, it is not necessary to repartition traditional acid buret and alkalescence burette, use more convenient; (2) cock in plug valve will not in use skid off from faucet hole, not only easy to operate, and performance accuracy is high, and substantially increases stability in use; (3) it is not connected again through glass tubing between plug valve with gauge line, effectively stop the situation generation that burette is scrapped because glass tubing occurs to rupture, and after plug valve or gauge line are damaged, only need to change plug valve or the gauge line of damage, easy installation and removal, use cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of combination type acid base titration pipe described in the utility model.
Fig. 2 is the decomposition texture schematic diagram of Fig. 1.
Fig. 3 is the structural representation of the faucet valve shown in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Such as Fig. 1, Fig. 2, shown in Fig. 3, described combination type acid base titration pipe, including gauge line 1, and by epimere valve body 2, stage casing valve body 3 and hypomere valve body 4 form and can the faucet valves of simultaneously acid and alkali-resistance, the inlet opening 5 that gauge line 1 inserts it is provided at the top of epimere valve body 2, described gauge line 1 inserts in the inlet opening 5 of epimere valve body 2, it is connected by lock sealing mechanism seals between gauge line 1 with valve body epimere 2, stage casing valve body 3 is provided with radially through stage casing valve body 3 and tapered faucet hole 6, the bottom of hypomere valve body 4 is provided with liquid outlet 7, faucet valve is provided with the upper fluid passage 8 of connection faucet hole 6 and inlet opening 5, and the lower fluid passage 9 of connection faucet hole 6 and liquid outlet 7, in the faucet hole 6 of stage casing valve body 3, movable sealing is inserted with tapered and energy acid and alkali-resistance simultaneously cock 10, small-caliber end in cock 10 is provided with clamping screw 11, threaded on the clamping screw 11 of cock 10 have clamping nut 12, clamping screw 11 between clamping nut 12 and stage casing valve body 3 is arranged with spring 13, the two ends of spring 13 are against on clamping nut 12 and stage casing valve body 3 respectively, cock 10 has the trend that sealing is pressed on faucet hole 6 inwall all the time under the elastic force effect of spring 13, cock 10 is provided with the intermediate liquid passage 14 of radially through cock 10, when cock 10 turn to its intermediate liquid passage 14 connect fluid passage 8 and lower fluid passage 9 simultaneously time, upper fluid passage 8, intermediate liquid passage 14 and lower fluid passage 9 are collectively forming dropping liquid passage, when cock 10 turns to its intermediate liquid passage 14 and upper fluid passage 8 and lower fluid passage 9 is staggered, dropping liquid passage is just cut-off, in the present embodiment, the structure of described lock sealing mechanism is: include lock nut 15, and can insert and seal the sealing ring 16 in gap between gauge line 1 and epimere valve body 2, the valve outer wall of epimere valve body 2 is provided with external screw thread, lock nut 15 is provided with stairstepping through hole 17, the aperture of the small-bore through hole of stairstepping through hole 17 just allows gauge line 1 to pass through, the heavy caliber through hole of stairstepping through hole 17 is can with the internal thread hole of the external screw thread phase threaded engagement on epimere valve body 2 outer wall, when sealing ring 16 inserts and seal between gauge line 1 and epimere valve body 2 behind gap, and sealing ring 16 is pressed between gauge line 1 and epimere valve body 2 in gap by the cascaded surface of its stairstepping through hole 17 by the lock nut 15 of epimere valve body screw thread locking, epimere valve body 2 is made to seal locking with gauge line 1 phase, above-mentioned lock sealing mechanism structure is simple, convenient to install and maintain, in the present embodiment, one end that clamping nut 12 contacts with spring 13 is provided with the first spring locating slot 18, the body wall that stage casing valve body 3 contacts with spring 13 is provided with the second spring locating slot 19, when clamping nut 12 matches locking with the clamping screw 11 in the cock 10 inserting faucet hole 6, the two of spring 13 correct and lay respectively in the first spring locating slot 18 and the second spring locating slot 19, so better spring can be positioned, install more convenient, in the present embodiment, the heavy caliber end in cock 10 is provided with rotary handle 20, so can operate rotation cock better, in the present embodiment, described lower fluid passage includes the second liquid passage of first time fluid passage and first time fluid passage of connection and the liquid outlet communicated with faucet hole, the bore of second liquid passage, less than the bore of first liquid passage, so can better control over dropping liquid amount,
Operation principle of the present utility model is as follows:
This combination type acid base titration pipe installation process is as follows: first inserted the lower end of gauge line 1 in the inlet opening 5 of epimere valve body 2, then sealing ring 16 is enclosed within gauge line 1, and move down to insert gap between sealing gauge line 1 and epimere valve body 2 along gauge line 1, then again lock nut 15 is enclosed within gauge line 1, and move down to and epimere valve body 2 phase screw-threaded coupling, now, sealing ring 16 can be pressed between gauge line 1 and epimere valve body 2 in gap by the cascaded surface of its stairstepping through hole 17 by lock nut 15, epimere valve body 2 is made to seal locking with gauge line 1 phase, then cock 10 is inserted the faucet hole 6 of stage casing valve body 3 again, then sheathed spring 13 on the clamping screw 11 of cock 10 small-caliber end, then clamping nut 12 is made to screw with clamping screw 11 phase screw thread, thus holddown spring 13, now, cock 10 can seal all the time under the elastic force effect of spring 13 and be pressed on faucet hole 6 inwall, will not skid off from faucet hole 6, in actual use, the elasticity of spring 13 can be adjusted by regulating clamping nut 12, ensure cock smooth rotation,
During use, cock 10 first turns to its intermediate liquid passage 14 be staggered with upper fluid passage 8 and lower fluid passage 9, now dropping liquid passage is in dissengaged positions, then again acidic liquid or akaline liquid are poured in gauge line 1, when needs titration, only cock 10 need to turn to its intermediate liquid passage 14 connects fluid passage 8 and lower fluid passage 9 simultaneously, make fluid passage 8, intermediate liquid passage 14 and lower fluid passage 9 are collectively forming dropping liquid passage, now, acidic liquid or alkalies in gauge line 1 are known from experience successively through inlet opening 5, upper fluid passage 8, intermediate liquid passage 14, after lower fluid passage 9, flow out from liquid outlet 7, to be titrated complete after, cock 10 turns to its intermediate liquid passage 14 again be staggered with upper fluid passage 8 and lower fluid passage 9, dropping liquid passage is made to be in dissengaged positions, pass through aforesaid operations, namely whole titration operation is completed.
The utility model has the advantages that: (1) can be suitable for acidic liquid and akaline liquid titration simultaneously, it is not necessary to repartition traditional acid buret and alkalescence burette, use more convenient; (2) cock in plug valve will not in use skid off from faucet hole, not only easy to operate, and performance accuracy is high, and substantially increases stability in use; (3) it is not connected again through glass tubing between plug valve with gauge line, effectively stop the situation generation that burette is scrapped because glass tubing occurs to rupture, and after plug valve or gauge line are damaged, only need to change plug valve or the gauge line of damage, easy installation and removal, use cost is low.
Claims (5)
1. combination type acid base titration pipe, it is characterized in that: include gauge line, and by epimere valve body, the faucet valve of stage casing valve body and hypomere valve body composition and acid and alkali-resistance, the inlet opening that gauge line inserts it is provided at the top of epimere valve body, described gauge line inserts in the inlet opening of epimere valve body, it is connected by lock sealing mechanism seals between gauge line with valve body epimere, stage casing valve body is provided with radially through stage casing valve body and tapered faucet hole, the bottom of hypomere valve body is provided with liquid outlet, faucet valve is provided with the upper fluid passage of connection faucet hole and inlet opening, and the lower fluid passage of connection faucet hole and liquid outlet, in the faucet hole of stage casing valve body, movable sealing is inserted with tapered and acid and alkali-resistance cock, small-caliber end in cock is provided with clamping screw, threaded on the clamping screw of cock have clamping nut, clamping screw between clamping nut and stage casing valve body is arranged with spring, the two ends of spring are against on clamping nut and stage casing valve body respectively, cock has the trend that sealing is pressed on faucet hole inwall all the time under the elastic force effect of spring, cock is provided with the intermediate liquid passage of radially through cock, when cock turn to its intermediate liquid passage connect upper fluid passage and lower fluid passage simultaneously time, upper fluid passage, intermediate liquid passage and lower fluid passage are collectively forming dropping liquid passage, when cock turns to its intermediate liquid passage and upper fluid passage and lower fluid passage is staggered, dropping liquid passage is just cut-off.
2. combination type acid base titration pipe according to claim 1, it is characterized in that: the structure of described lock sealing mechanism is: include lock nut, and can insert and seal the sealing ring in gap between gauge line and epimere valve body, the valve outer wall of epimere valve body is provided with external screw thread, lock nut is provided with stairstepping through hole, the aperture of the small-bore through hole of stairstepping through hole just allows gauge line to pass through, the heavy caliber through hole of stairstepping through hole is can with the internal thread hole of the external screw thread phase threaded engagement on epimere valve outer wall, when sealing ring inserts and seal between gauge line and epimere valve body behind gap, and sealing ring is pressed between gauge line and epimere valve body in gap by the cascaded surface of its stairstepping through hole by the lock nut of epimere valve body screw thread locking, epimere valve body is made to seal locking mutually with gauge line.
3. combination type acid base titration pipe according to claim 1, it is characterized in that: the one end touched at clamping nut and spring interface is provided with the first spring locating slot, the body wall that stage casing valve body and spring interface touch is provided with the second spring locating slot, when clamping nut matches locking with the clamping screw in the cock inserting faucet hole, the two of spring correct and lay respectively in the first spring locating slot and the second spring locating slot.
4. combination type acid base titration pipe according to claim 1, it is characterised in that: the heavy caliber end in cock is provided with rotary handle.
5. combination type acid base titration pipe according to claim 1, it is characterized in that: described lower fluid passage includes the second liquid passage of first time fluid passage and first time fluid passage of connection and the liquid outlet communicated with faucet hole, and the bore of second liquid passage is less than the bore of first liquid passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045302.7U CN205280686U (en) | 2015-12-16 | 2015-12-16 | Modular acid base titration pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045302.7U CN205280686U (en) | 2015-12-16 | 2015-12-16 | Modular acid base titration pipe |
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| Publication Number | Publication Date |
|---|---|
| CN205280686U true CN205280686U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521045302.7U Active CN205280686U (en) | 2015-12-16 | 2015-12-16 | Modular acid base titration pipe |
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| Country | Link |
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| CN (1) | CN205280686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665322A (en) * | 2020-07-21 | 2020-09-15 | 韩笑 | Precision constant burette for inspection and detection center |
-
2015
- 2015-12-16 CN CN201521045302.7U patent/CN205280686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665322A (en) * | 2020-07-21 | 2020-09-15 | 韩笑 | Precision constant burette for inspection and detection center |
| CN111665322B (en) * | 2020-07-21 | 2022-07-01 | 韩笑 | Precision constant burette for inspection and detection center |
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