阅读说明：本技术 一种新型自动凯式定氮仪 (Novel automatic triumph nitrogen determination appearance ) 是由 储涛 罗洋 于 2020-12-16 设计创作，主要内容包括：本发明公开了一种新型自动凯式定氮仪,涉及凯式定氮仪技术领域,包括全自动的凯式定氮仪本体,所述凯式定氮仪本体上具有用于放置试管的试管安放区域,试管安放区域内底部设置有一可在竖直方向上移动的升降板,升降板上表面转动连接有试管座,试管座的周向开设有多个用于安放试管的外管槽,且每个外管槽中均设置有用于试管底周部进行限位的定位机构。本发明通过转盘式的试管座能够一次性将不同种的检测物质分别装入到试管中进行,而后轮流依次移动到中间的中管筒中进行滴定检测,从而省去了一个一个将试管放到试管安放区域下方进行滴定的步骤,大大提高了检测效率,具有显著的使用效果。(The invention discloses a novel automatic triumphant type azotometer, which relates to the technical field of triumphant type azotometers and comprises a full-automatic triumphant type azotometer body, wherein a test tube placing area for placing a test tube is arranged on the triumphant type azotometer body, a lifting plate capable of moving in the vertical direction is arranged at the bottom in the test tube placing area, a test tube seat is rotatably connected to the upper surface of the lifting plate, a plurality of outer tube grooves for placing the test tube are formed in the circumferential direction of the test tube seat, and a positioning mechanism for limiting the circumferential part of the bottom of the test tube is arranged in each outer tube groove. According to the invention, different detection substances can be respectively loaded into the test tubes at one time through the rotating disc type test tube seats, and then sequentially moved into the middle tube barrel in turn for titration detection, so that a step of placing the test tubes below the test tube placing area for titration is omitted, the detection efficiency is greatly improved, and the use effect is remarkable.)

1. A novel automatic Kai type azotometer comprises a full-automatic Kai type azotometer body (1), wherein a test tube placing area (2) for placing a test tube (3) is arranged on the Kai type azotometer body (1), and the novel automatic Kai type azotometer is characterized in that a lifting plate (7) capable of moving in the vertical direction is arranged at the bottom in the test tube placing area (2), a test tube seat (8) is rotatably connected to the upper surface of the lifting plate (7), a plurality of outer tube grooves (9) for placing the test tube (3) are formed in the circumferential direction of the test tube seat (8), a positioning mechanism for limiting the circumferential part of the bottom of the test tube (3) is arranged in each outer tube groove (9), meanwhile, each outer tube groove (9) is in a semi-circular shape, a guide groove channel (14) for sliding the test tube (3) is formed in one side, facing the circle center of the test tube seat (8), and the guide groove channel (14) is communicated with a groove (15) formed in, and the interior bottom center department fixedly connected with well bobbin (13) of spacing section of thick bamboo (16), well bobbin (13) are in the test tube and lay under the drain pipe in region (2), and still have in well bobbin (13) and carry out the gravity that the centre gripping was carried out to test tube (3) automatically after test tube (3) put into and trigger fixture.

2. The novel automatic Kjeldahl apparatus as claimed in claim 1, wherein the gravity-triggered clamping mechanism comprises a plurality of uniformly distributed spring plates (12) fixedly connected to the bottom surface of the middle tube (13), a support plate (11) for supporting the test tube (3) is fixedly arranged on the top of the plurality of spring plates (12), the bottom surface of the test tube seat (8) on both sides of the middle tube (13) is fixedly connected with a vertical sliding shaft (25), one end of a transverse lifting shaft (35) is slidably connected to the vertical sliding shaft (25), a sliding block (26) is slidably connected to the upper surface of the sliding block (26), the front side surface of the sliding block (26) is rotatably connected to one end of a second connecting rod (33) through a rotating shaft, the other end of the second connecting rod (33) is rotatably connected to the outer end of a mounting rod (34) fixedly connected to the upper peripheral wall of the middle tube (13), and the rear side surface of the sliding block (26) is rotatably connected to one end of a, the other end of first connecting rod (30) rotates the one end of connecting trace (31) through the pivot, and trace (31) sliding connection is in the through-hole that well bobbin (13) lateral wall was seted up, and trace (31) are in the one end fixedly connected with in well bobbin (13) and support piece (10), support piece (10) integrated into one piece be with test tube (3) peripheral part assorted cambered surface structure, the interior bottom of well bobbin (13) still is provided with the subassembly that triggers that is used for lifting up lift shaft (35) when test tube (3) receives the weight.

3. The novel automatic kjeldahl instrument according to claim 2, wherein the trigger assembly comprises a second rack (29) fixedly connected with two side surfaces of the support plate (11), the second rack (29) is engaged with one side of a gear (28), the gear (28) is rotatably connected with the inner bottom surface of the middle tube barrel (13) through a bracket, the other side of the gear (28) is engaged with a first rack (27), and the top end of the first rack (27) is fixedly connected with one end of the lifting shaft (35) far away from the vertical sliding shaft (25).

4. The novel automatic Kjeldahl instrument as claimed in claim 1, characterized in that the top of the limiting cylinder (16) is open and the bottom is a blocking structure, and the slot (15) on the limiting cylinder (16) extends vertically downwards from the top opening.

5. The novel automatic Kai type azotometer of claim 1, wherein the positioning mechanism comprises an outer tube groove (9) with a peripheral portion corresponding to an accommodating groove (19) formed in the test tube seat (8), a positioning column (20) is fixedly connected to the bottom surface of the accommodating groove (19), one end of a pressure spring (21) is wound on the positioning column (20), the other end of the pressure spring (21) is wound on another positioning column (20) fixedly connected to the corresponding side surface of the clamping plate (18), the clamping plate (18) is located in the accommodating groove (19), and the clamping plate (18) is integrally formed into an arc-surface-shaped structure matched with the peripheral portion of the test tube (3).

6. The novel automatic Kai type azotometer of claim 5, wherein a rubber pad is compositely connected to one side of the clamping plate (18) opposite to the corresponding compression spring (21).

7. The novel automatic kjeldahl instrument according to claim 1, wherein the front and rear sides of one end of the lifting plate (7) are both provided with through holes for the sliding rods (6) to slide through, and the two sliding rods (6) are symmetrically arranged in parallel, the top and bottom ends of the sliding rods (6) are respectively and fixedly connected to the bottom surface and bottom surface of the test tube placing region (2), the other end of the lifting plate (7) is provided with threaded through holes for the screw shaft (4) to be in threaded connection, the bottom end of the screw shaft (4) is rotatably connected to the bottom surface of the test tube placing region (2) through a bearing, the top end of the screw shaft (4) faces vertically upwards and is connected to the output shaft of the speed reduction motor (5) through a coupler, and the speed reduction motor (5) is fixedly installed at the corresponding position on the upper portion of the test tube placing.

8. The novel automatic triumphant azotometer according to claim 1, wherein the circumferential edge of the upper surface of the lifting plate (7) is fixedly connected with an annular guide rail, the annular guide rail is connected with a ball (23) in a rolling manner, the ball (23) is connected with a rolling groove formed on the lower surface of a positioning block in a rolling manner, the positioning block is fixedly connected with the circumferential edge of the lower surface of the test tube base (8), and the test tube base (8) is further provided with a limiting mechanism for temporarily positioning the lifting plate (7) after the test tube base is rotated to a required position.

9. The novel automatic Kai type azotometer of claim 8, wherein the limiting mechanism comprises a plurality of vertical through holes for the penetration of the pressing screw (32) are arranged on the periphery of the test tube base (8), the top of the through hole is fixedly connected with a threaded tube (24) corresponding to the upper surface of the test tube base (8), and the pressing screw (32) is connected in the threaded tube (24) in a threaded manner.

10. The novel automatic kjeldahl instrument according to claim 9, wherein the top end of the compression screw (3) is fixedly connected with a knob (17), and the bottom end of the compression screw (3) is fixedly connected with a non-slip mat (22).

Technical Field

The invention relates to the technical field of Kai-type azotometers, in particular to a novel automatic Kai-type azotometer.

Background

The Kjeldahl azotometer is an instrument for calculating the content of protein by measuring the content of nitrogen in a sample according to the principle that the content of nitrogen in protein is constant, is called as a Kjeldahl azotometer because the method for measuring and calculating the content of protein is called as a Kjeldahl azotometer, is also called as a azotometer, a protein determinator and a crude protein determinator, and is used for detecting the contents of ammonia, protein nitrogen, phenol, volatile fatty acid, cyanide, sulfur dioxide, ethanol and the like in grains, foods, feeds, water, soil, silt, sediments and chemicals by using the Kjeldahl azotometer.

Often all will wait to detect the material and put into the test tube and titrate the operation, the test tube in most current kjeldahl azotometers can only one use, titrates in turn, and this need install repeatedly to wait to detect the material to the test tube in, need one to put the test tube into the test tube and lay regional below titrating, especially when waiting to detect the material in a large amount and need survey, detection efficiency is low.

Disclosure of Invention

The invention aims to provide a novel automatic Kjeldahl apparatus, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a novel automatic Kjeldahl apparatus comprises a full-automatic Kjeldahl apparatus body, a test tube placing area for placing a test tube is arranged on the Kjeldahl apparatus body, the bottom in the test tube placing area is provided with a lifting plate which can move in the vertical direction, the upper surface of the lifting plate is rotationally connected with a test tube seat, a plurality of outer pipe grooves for placing test tubes are arranged on the circumference of the test tube seat, a positioning mechanism for limiting the circumference of the bottom of the test tube is arranged in each outer pipe groove, meanwhile, each outer pipe groove is in a semi-circular groove ring shape, and one side of the outer pipe groove facing the circle center of the test tube seat is provided with a guide groove channel for the test tube to slide, the guide groove channel is communicated with the slot arranged on the periphery of the limiting cylinder, the center of the inner bottom of the limiting cylinder is fixedly connected with a middle tube cylinder, the middle tube cylinder is positioned under the liquid outlet tube in the test tube placing area, and a gravity-triggered clamping mechanism which automatically clamps the test tube after the test tube is placed in the middle tube cylinder is also arranged in the middle tube cylinder.

As a further scheme of the invention: the gravity-triggered clamping mechanism comprises a plurality of uniformly distributed elastic sheets fixedly connected with the bottom surface of a middle tube barrel, a supporting sheet for supporting a test tube is fixedly arranged at the tops of the elastic sheets, a vertical sliding shaft is fixedly connected with the bottom surface of a test tube seat on two sides of the middle tube barrel, one end of a transverse lifting shaft is connected with the vertical sliding shaft in a sliding manner, a sliding block is connected with the upper sliding shaft in a sliding manner, the front side surface of the sliding block is rotatably connected with one end of a second connecting rod through a rotating shaft, the other end of the second connecting rod is rotatably connected with the outer end of an installation rod fixedly connected with the upper peripheral wall of the middle tube barrel, the rear side surface of the sliding block is rotatably connected with one end of a first connecting rod through a rotating shaft, the other end of the first connecting rod is rotatably connected with one end of a linkage rod through a rotating shaft, the linkage rod is slidably connected in a through hole formed in, the inner bottom of the middle tube barrel is also provided with a trigger assembly for lifting the lifting shaft when the test tube is weighted.

As a further scheme of the invention: the trigger assembly comprises a second rack bar fixedly connected with two side faces of the support piece, the second rack bar is meshed with one side of a gear, the gear is connected to the inner bottom face of the middle pipe barrel through a support in a rotating mode, the other side of the gear is meshed with a first rack bar, and the top end of the first rack bar is fixedly connected to one end, far away from the vertical sliding shaft, of the lifting shaft.

As a further scheme of the invention: the top opening of the limiting cylinder is provided with a blocking structure at the bottom, and the open groove on the limiting cylinder vertically extends downwards from the top opening.

As a further scheme of the invention: the positioning mechanism comprises an outer tube groove peripheral portion corresponding to an accommodating groove formed in the test tube base, a positioning column is fixedly connected to the bottom surface of the accommodating groove, one end of a pressure spring is wound on the positioning column, the other end of the pressure spring is wound on the other positioning column fixedly connected to the corresponding side face of the clamping plate, the clamping plate is located in the accommodating groove, and the clamping plate is integrally formed into an arc-surface-shaped structure matched with the test tube peripheral portion.

As a further scheme of the invention: and a rubber pad is compositely connected to one side surface of the clamping plate back to the corresponding pressure spring.

As a further scheme of the invention: lateral part all seted up around the one end of lifter plate and supplied the slide bar to run through gliding perforation, and two slide bar symmetry parallel arrangement, the top and the bottom of slide bar are fixed connection respectively and are laid regional bottom surface and bottom surface at the test tube, and the other end of lifter plate is seted up and is supplied the screw thread perforation that the lead screw axle runs through threaded connection, the bottom of lead screw axle is rotated through the bearing and is connected the bottom surface that the region was laid at the test tube, and the top of lead screw axle is vertical up and through coupling joint on gear motor's output shaft, gear motor fixed mounting is in the test tube and is laid regional upper portion.

As a further scheme of the invention: the test tube comprises a test tube base, and is characterized in that an annular guide rail is fixedly connected to the periphery of the upper surface of the lifting plate, a ball is connected to the annular guide rail in a rolling mode, the ball is connected to a rolling groove formed in the lower surface of a positioning block in a rolling mode, the positioning block is fixedly connected to the periphery of the lower surface of the test tube base, and a limiting mechanism used for temporarily positioning the lifting plate after the lifting plate rotates to a required position is further arranged on the test tube base.

As a further scheme of the invention: the limiting mechanism comprises a plurality of vertical through holes which are formed in the periphery of the test tube seat and are penetrated by the compression screws, the top of each through hole corresponds to the upper surface of the test tube seat and is fixedly connected with a threaded tube, and the compression screws are connected in the threaded tube in a threaded mode.

As a further scheme of the invention: the top end of the compression screw is fixedly connected with a knob, and the bottom end of the compression screw is fixedly connected with an anti-slip pad.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, different detection substances can be respectively loaded into the test tubes at one time through the rotating disc type test tube seats, and then sequentially moved to the middle tube barrel in the middle for titration detection in turn, or the detection substances with different concentrations of the same substances are titrated and detected at one time, so that a step of placing the test tubes below the test tube placing area for titration is omitted, the detection efficiency is greatly improved, and the use effect is remarkable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the test tube holder of the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 2;

FIG. 4 is a schematic structural view of a limiting cylinder according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1;

fig. 6 is a schematic structural view of the limiting mechanism of the present invention.

In the figure: 1. a Kay type azotometer body; 2. a test tube placement area; 3. a test tube; 4. a screw shaft; 5. a reduction motor; 6. a slide bar; 7. a lifting plate; 8. a test tube seat; 9. an outer pipe groove; 10. a resisting block; 11. a support sheet; 12. a spring plate; 13. a middle pipe barrel; 14. a channel guide channel; 15. grooving; 16. a limiting cylinder; 17. a knob; 18. a splint; 19. accommodating grooves; 20. a positioning column; 21. a pressure spring; 22. a non-slip mat; 23. a ball bearing; 24. a threaded pipe; 25. a vertical slide shaft; 26. a slider; 27. a first rack bar; 28. a gear; 29. a second rack bar; 30. a first link; 31. a linkage rod; 32. a compression screw; 33. a second link; 34. mounting a rod; 35. a lifting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, in the embodiment of the present invention, a novel automatic triumph nitrogen determination apparatus includes a full-automatic triumph nitrogen determination apparatus body 1, the triumph nitrogen determination apparatus body 1 has a test tube placing region 2 for placing a test tube 3, a lifting plate 7 capable of moving in a vertical direction is disposed at a bottom portion in the test tube placing region 2, a test tube seat 8 is rotatably connected to an upper surface of the lifting plate 7, a plurality of outer tube grooves 9 for placing the test tube 3 are disposed in a circumferential direction of the test tube seat 8, a positioning mechanism for limiting a circumferential portion of a bottom of the test tube 3 is disposed in each outer tube groove 9, each outer tube groove 9 is semi-circular, a guide groove channel 14 for sliding the test tube 3 is disposed at a side facing a center of the test tube seat 8, the guide groove channel 14 communicates with a groove 15 disposed at a circumferential portion of a limiting tube 16, and a middle tube 13 is fixedly connected to a center of the inner bottom of the limiting tube 16, well bobbin 13 is in under the drain pipe in test tube placement area 2, and still have in well bobbin 13 and carry out the gravity trigger fixture of centre gripping to test tube 3 automatically after test tube 3 puts into, its aim at, can once only pack into test tube 3 with the detection material of different race go on respectively through the test tube seat 8 of carousel formula, then move in proper order in the middle of well bobbin 13 in the middle of in turn and titrate and detect, perhaps once only titrate the detection material with the different concentration of same race material and detect, thereby saved one and put test tube 3 the test tube placement area 2 below step of titrating, the detection efficiency is greatly improved, has obvious result of use.

Further, the gravity-triggered clamping mechanism comprises a plurality of uniformly distributed elastic sheets 12 fixedly connected with the bottom surface of the middle tube barrel 13, a supporting sheet 11 for supporting the test tube 3 is fixedly arranged at the top of the plurality of elastic sheets 12, the bottom surfaces of the test tube seats 8 at two sides of the middle tube barrel 13 are fixedly connected with a vertical sliding shaft 25, one end of a transverse lifting shaft 35 is slidably connected with the vertical sliding shaft 25, a sliding block 26 is slidably connected with the upper part of the vertical sliding shaft 25, the front side surface of the sliding block 26 is rotatably connected with one end of a second connecting rod 33 through a rotating shaft, the other end of the second connecting rod 33 is rotatably connected with the outer end of an installation rod 34 fixedly connected with the upper peripheral wall of the middle tube barrel 13, the rear side surface of the sliding block 26 is rotatably connected with one end of a first connecting rod 30 through a rotating shaft, the other end of the first connecting rod 30 is rotatably connected with one end of a linkage rod 31 through a rotating shaft, the linkage rod, the resisting block 10 is integrally formed into a cambered surface structure matched with the outer periphery of the test tube 3, and a triggering component used for lifting the lifting shaft 35 when the test tube 3 is heavy is further arranged at the inner bottom of the middle tube barrel 13.

Still further, the trigger assembly includes second rack bar 29 of backing sheet 11 both sides face fixed connection, the meshing of second rack bar 29 is connected with one side of gear 28, gear 28 passes through the support and rotates the interior bottom surface of connection at well bobbin 13, and the meshing of the opposite side of gear 28 is connected with first rack bar 27, and the top fixed connection of first rack bar 27 is in the one end of lifting shaft 35 keeping away from vertical sliding shaft 25, when backing sheet 11 receives the weight of test tube 3 and pushes down, shell fragment 12 is in compression state, second rack bar 29 descends and drives first rack bar 27 through gear 28 and rises at this moment, then lifting shaft 35 lifting, second connecting rod 33 promotes slider 26 and removes to the direction of well bobbin 13, and then drive through first connecting rod 30 and support piece 10 and compress tightly on test tube 3, realize the automatic positioning effect, fully guarantee the steady of test tube 3 that the material that awaits measuring locates.

Further, the top of the limiting cylinder 16 is open and the bottom thereof is a blocking structure, and the slot 15 on the limiting cylinder 16 extends vertically and downwardly from the top opening, so that the test tube 3 is firstly pushed from the outer tube groove 9 into the corresponding guide groove channel 14 by applying force, and then the test tube 3 is continuously slid into the middle tube 13 in the guide groove channel 14, and firstly, the titration detection of the substance to be detected is performed.

Further, positioning mechanism includes that outer tube groove 9 week portion corresponds holding tank 19 seted up in test tube seat 8, holding tank 19's basal surface fixedly connected with reference column 20, around the one end that connects pressure spring 21 on reference column 20, and the other end of pressure spring 21 winds on another reference column 20 that connects splint 18 corresponding side fixed connection, splint 18 is in holding tank 19, and splint 18 integrated into one piece is test tube 3 peripheral part assorted cambered surface form structure, thereby after placing test tube 3 in outer tube groove 9, test tube 3 week portion contradicts splint 18 and makes pressure spring 21 receive the compression of certain degree, pressure spring 21 provides certain elasticity this moment, make splint 18 can hug closely on test tube 3, so that keep test tube 3's vertical state, thereby guarantee the smooth and easy when test tube 3 connects liquid.

Furthermore, a rubber pad is compositely connected to one side surface of the clamping plate 18 back to the corresponding pressure spring 21, so that the friction coefficient between the clamping plate and the surface wall of the test tube 3 can be increased, and the abutting effect is improved.

Furthermore, the front and rear side parts of one end of the lifting plate 7 are respectively provided with a through hole for the sliding of the slide bar 6, the two slide bars 6 are symmetrically arranged in parallel, the top end and the bottom end of the slide bar 6 are respectively and fixedly connected with the bottom surface and the bottom surface of the test tube placing area 2, the other end of the lifting plate 7 is provided with a threaded through hole for the threaded connection of the screw shaft 4, the bottom end of the screw shaft 4 is rotatably connected with the bottom surface of the test tube placing area 2 through a bearing, the top end of the screw shaft 4 is vertically upward and is connected with the output shaft of the speed reducing motor 5 through a coupler, the speed reducing motor 5 is fixedly arranged at the corresponding position on the upper part of the test tube placing area 2, so that the screw shaft 4 is driven to rotate by starting the speed reducing motor 5, the lifting plate 7 is lifted and moved, the height of, so as to prevent the liquid from splashing because the liquid outlet pipe is shallow in the test tube 3.

Further, fixedly connected with annular guide rail is all followed to the upper surface of lifter plate 7, and roll connection has ball 23 on the annular guide rail, and the rolling groove roll connection that the locating piece lower surface was seted up is connected to ball 23 roll, and locating piece fixed connection is all followed at 8 lower surfaces of test tube seats to can make test tube seats 8 dial for lifter plate 7 under manual operation, so that can place test tube 3 in turn in the outer tube groove 9 on test tube seats 8 in order, improve the convenience during operation, still be provided with on the test tube seats 8 and be used for carrying out the stop gear of temporary location with lifter plate 7 after it rotates required position.

Still further, stop gear includes that 8 week edges of test tube seat have seted up the perforation that a plurality of vertical confession compression screw 32 run through, and the last fixed surface that the perforation top corresponds test tube seat 8 is connected with screwed pipe 24, and threaded connection has compression screw 32 in the screwed pipe 24, utilizes compression screw 32 to rotate the direction in screwed pipe 24 and move down to make 3 lower extremes of compression screw can conflict and support tightly 7 upper surfaces of lifter plate, realize the location.

Still further, the top fixedly connected with knob 17 of compression screw 3, and the bottom fixedly connected with slipmat 22 of compression screw 3, its aim at, knob 17 can be convenient for the hand screw 3 of screwing, and slipmat 22 can replace 3 bottom faces of compression screw and the contact of lifter plate 7, increases the frictional force after supporting tightly for test tube 3 on the test tube seat 8 remains stable when connecing the liquid.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.