CN213302109U

CN213302109U - Liquid storage mechanism for liquid chromatograph

Info

Publication number: CN213302109U
Application number: CN202022288790.1U
Authority: CN
Inventors: 王荣艳; 蔡江滔
Original assignee: Hangzhou Ligao Inspection And Detection Technology Res Inst Co ltd
Current assignee: Hangzhou Ligao Inspection And Detection Technology Res Inst Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-05-28
Anticipated expiration: 2030-10-14

Abstract

The application relates to the technical field of chromatographs, in particular to a liquid storage mechanism for a liquid chromatograph, which comprises a base, wherein the upper surface of the base is provided with a plurality of circular positioning holes, and liquid storage bottles are placed in the positioning holes; still be equipped with a plurality of tight subassemblies that support that correspond to the locating hole on the base, support tight subassembly and include fixed block, receipts tightrope and a plurality of support tight post that is circumference setting around the locating hole axis, on the base was located to the fixed block, on the fixed block was located to the one end of receiving the tightrope, all support and all set up the hole of wearing to establish that the other end that supplies to tighten up the rope wore on the tight post, and all support tight post and all follow the radial sliding connection of locating hole in the base. After the liquid storage bottle is placed into the positioning hole, a worker manually tightens the tightening rope, and the tightening rope enables all the tightening columns to be tightly pressed against the outer wall of the liquid storage bottle in a sliding mode; then the workman will tighten up the rope and tie up on the fixed block, can make the stock solution bottle by the tight fixing in the locating hole of support. This application can be applicable to the stock solution bottle of different specifications.

Description

Liquid storage mechanism for liquid chromatograph

Technical Field

The application relates to the technical field of chromatographs, in particular to a liquid storage mechanism for a liquid chromatograph.

Background

The liquid chromatograph is an instrument which firstly separates a mixture and then analyzes and identifies the mixture by utilizing the difference of the distribution ratio of the mixture between liquid and solid or two immiscible liquids, and has wide application in the fields of biology and chemistry.

Through the retrieval, chinese patent publication No. CN209372770U discloses a liquid chromatograph, including high-pressure pump, stock solution device, sampling device, chromatographic column, detection device and record appearance, stock solution device includes the box body, erects locating rack and the stock solution bottle at the box body upside, has seted up the location mouth on the locating rack, the stock solution bottle is placed in the locating mouth, locating mouth department install the clamp ring, the clamp ring includes stationary half ring and rotation semi-ring, the rotation semi-ring is not provided with the locking rack with stationary half ring articulated one end, stationary half ring is not served with one of rotation semi-ring articulated and is provided with locking Assembly. The position that above-mentioned structure can make the rotation semi-ring is fixed, can not loosen easily to with the position fixation of stock solution bottle, reduce the phenomenon that stock solution bottle cup overturns.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the size of the positioning opening, the fixed semi-ring and the rotating semi-ring is fixed, when a thinner liquid storage bottle is placed in the positioning opening, the liquid storage bottle is unstable, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to be applicable to the stock solution bottle of different specifications, this application provides a stock solution mechanism for liquid chromatograph.

The application provides a stock solution mechanism for liquid chromatograph adopts following technical scheme: a liquid storage mechanism for a liquid chromatograph comprises a base, wherein the upper surface of the base is provided with a plurality of circular positioning holes, and liquid storage bottles are placed in the positioning holes; still be equipped with a plurality of tight subassemblies that support that correspond to the locating hole on the base, support tight subassembly and include fixed block, receipts tightrope and a plurality of support tight post that is circumference setting around the locating hole axis, on the base was located to the fixed block, on the fixed block was located to the one end of receiving the tightrope, all support and all set up the hole of wearing to establish that the other end that supplies to tighten up the rope wore on the tight post, and all support tight post and all follow the radial sliding connection of locating hole in the base.

By adopting the technical scheme, after the liquid storage bottle is placed into the positioning hole, a worker manually tightens the tightening rope, and the tightening rope enables all the tightening columns to be tightly pressed against the outer wall of the liquid storage bottle in a sliding manner; then the workman will tighten up the rope and tie up on the fixed block, can make the stock solution bottle by the tight fixing in the locating hole of support. Support the slip of tight post and tighten up of tightening rope for this application can be applicable to the stock solution bottle of different specifications.

Optionally, the device further comprises a limiting assembly for limiting and fixing the tightening rope on the fixing block, the limiting assembly comprises a limiting ring tightly sleeved on the tightening rope, and a through groove for the tightening rope to penetrate through in a sliding mode is formed in the fixing block.

Through adopting above-mentioned technical scheme, when tightening up the rope and pass from the inboard of running-through groove and spacing ring, slide the spacing ring and support tightly in the fixed block, can will tighten up the spacing fixing of rope on the fixed block, need not the workman and will tighten up the rope and tie up tightly on the fixed block convenient operation.

Optionally, an insertion groove is formed in the outer wall of the limiting ring, the insertion groove is communicated with the inner side of the limiting ring, and a limiting rod is inserted in the insertion groove.

Through adopting above-mentioned technical scheme, when pegging graft the gag lever post in the inserting groove and support tightly in the inboard tightening rope of spacing ring, will make tightening rope supported tightly and fix in the spacing ring, guaranteed that tightening rope is to the tightening effect of supporting tight post.

Optionally, the limiting ring is provided with a first spring for urging the limiting rod to abut against the tightening rope, one end of the first spring is fixedly connected to the limiting rod, and the other end of the first spring is fixedly connected to the limiting ring.

Through adopting above-mentioned technical scheme, first spring will make the gag lever post support tightly in tightening up the rope, has improved the stability of tightening up the rope at the spacing ring is inboard.

Optionally, the fixing block is provided with a first elastic element for abutting against the limiting ring.

Through adopting above-mentioned technical scheme, after the spacing ring slided on tightening up the rope and compressed first elastic component, first elastic component will produce one and impel the spacing ring to keep away from the thrust of fixed block for tightening up the rope and being tightened up further.

Optionally, a groove for the limiting rod and the tightening rope to sink into is formed in the inner wall of the limiting ring.

Through adopting above-mentioned technical scheme, the gag lever post can be pressed the rope that tightens up in the recess, has improved the stability of tightening up the rope at the spacing ring is inboard.

Optionally, the stock solution bottle includes bottleneck, bottleneck and the body that sets gradually from last to extremely down, and the upper end external diameter of bottleneck is less than the lower extreme external diameter of bottleneck, all support all to be equipped with on the tight post and be used for pushing down the clamp plate of bottleneck, and all support tight post and all support tightly in the body.

Through adopting above-mentioned technical scheme, the clamp plate compresses tightly the bottleneck on the bottom inner wall of locating hole, has improved the stability of stock solution bottle in the locating hole.

Optionally, a second elastic part for abutting against the bottom of the bottle body is arranged in the positioning hole.

Through adopting above-mentioned technical scheme, after the locating hole was put into to the stock solution bottle, the bottom of body will compress the second elastic component, and the second elastic component will produce one and make the body thrust that rises for the bottleneck supports tightly in the clamp plate, thereby makes the clamp plate can compress tightly in the stock solution bottle of co-altitude.

To sum up, the application comprises the following beneficial technical effects:

1. due to the arrangement of the abutting assembly, the tightening rope can enable the abutting column to slide and abut against the outer wall of the liquid storage bottle, so that the liquid storage bottle can be suitable for liquid storage bottles of different specifications;

2. the arrangement of the limiting assembly enables the tightening rope to be limited and fixed, and the tightening effect of the tightening rope on the abutting column is improved;

3. the setting of clamp plate and second elastic component for the clamp plate can compress tightly in the stock solution bottle of co-altitude not, and has improved the stability of stock solution bottle in the locating hole.

Drawings

FIG. 1 is a schematic diagram of the overall structure in the embodiment of the present application;

FIG. 2 is a schematic structural diagram of one set of the abutting assembly and the limiting assembly in the embodiment of the present application;

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

fig. 4 is a schematic cross-sectional structure diagram showing a base in the embodiment of the present application.

Reference numerals: 1. a base; 11. a support leg; 12. positioning holes; 13. a liquid storage bottle; 131. a bottle mouth; 132. a bottleneck; 133. a bottle body; 14. a first slide plate; 15. a second slide plate; 16. a third spring; 17. a threaded hole; 18. a bolt; 2. a propping component; 21. a fixed block; 211. a through groove; 22. tightening the rope; 23. tightly abutting against the column; 231. perforating holes; 232. a dovetail block; 233. a dovetail groove; 24. pressing a plate; 25. a rubber pad; 3. a limiting component; 31. a limiting ring; 311. inserting grooves; 312. a groove; 32. a limiting rod; 33. a first spring; 34. a pull ring; 35. a second spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses stock solution mechanism for liquid chromatograph. As shown in fig. 1, a liquid storage mechanism for a liquid chromatograph comprises a base 1, wherein four support legs 11 are fixed on the lower surface of the base 1; the upper surface of the base 1 is provided with a plurality of circular positioning holes 12, and the number of the positioning holes 12 is four in this embodiment.

As shown in fig. 2, the liquid storage bottle 13 is placed in the positioning hole 12, the liquid storage bottle 13 includes a bottle mouth 131, a bottle neck 132 and a bottle body 133 which are sequentially arranged from top to bottom, the bottle mouth 131 and the bottle neck 132 are integrally formed, the bottle neck 132 and the bottle body 133 are integrally formed, and the outer diameter of the upper end of the bottle neck 132 is smaller than the outer diameter of the lower end of the bottle neck 132.

As shown in fig. 1, four sets of abutting assemblies 2 corresponding to the positioning holes 12 are further disposed on the base 1. As shown in fig. 2, the tightening assembly 2 includes a fixing block 21 fixed on the upper surface of the base 1, a flexible tightening rope 22, and a plurality of tightening posts 23 circumferentially arranged around the axis of the positioning hole 12; in this embodiment, the number of the fastening posts 23 in each fastening assembly 2 is three, all the fastening posts 23 extend along the radial direction of the positioning hole 12, and all the fastening posts 23 are provided with through holes 231; one end of the tightening rope 22 is fixed on the fixing block 21, the other end of the tightening rope 22 penetrates through all the penetrating holes 231, and the fixing block 21 is provided with a through groove 211 through which the other end of the tightening rope 22 penetrates in a sliding manner.

As shown in fig. 2 and 4, each tightening post 23 is fixed with a dovetail block 232, the base 1 is provided with a plurality of dovetail grooves 233 for the corresponding dovetail blocks 232 to be slidably embedded, and each dovetail groove 233 extends along the radial direction of the corresponding positioning hole 12, so that the tightening post 23 can only slide along the radial direction of the positioning hole 12; a pressing plate 24 is fixed at one end of each abutting column 23 facing the axis of the corresponding positioning hole 12, and a rubber pad 25 is fixed at one side of each abutting column 23 and one side of each pressing plate 24 facing the liquid storage bottle 13. When one end of the tightening rope 22 penetrates through the through groove 211 and is tightened, all the tightening posts 23 slide towards the liquid storage bottle 13, so that the rubber pads 25 on the tightening posts 23 are tightly abutted against the outer wall of the bottle body 133, and the rubber pads 25 on the pressing plate 24 are tightly pressed on the bottle neck 132, so that the liquid storage bottle 13 tightening device is applicable to liquid storage bottles 13 of different specifications.

As shown in fig. 2 and 3, the fixing block 21 is provided with a limiting component 3 for limiting and fixing the tightening rope 22, the limiting component 3 includes a limiting ring 31 tightly sleeved on the tightening rope 22, an insertion groove 311 is formed in an outer wall of the limiting ring 31, the insertion groove 311 is communicated with an inner side of the limiting ring 31, a groove 312 is formed in an inner wall of the limiting ring 31, and the groove 312 is opposite to the insertion groove 311; a limiting rod 32 is inserted into the insertion groove 311, a first spring 33 is wound on the limiting rod 32, one end of the first spring 33 is fixedly connected to the limiting rod 32, and the other end of the first spring 33 is fixedly connected to the outer wall of the limiting ring 31; a pull ring 34 is fixed on one end of the limiting rod 32 far away from the inner side of the limiting ring 31. When the first spring 33 is in a natural state, the first spring 33 will urge the limiting rod 32 to press the tightening rope 22 inside the limiting ring 31 into the groove 312, and at this time, the tightening rope 22 will be tightly fixed inside the limiting ring 31; after the pull ring 34 pulls the stop lever 32 to disengage from the groove 312, the stop ring 31 can slide on the tightening rope 22, so as to adjust the tightness of the tightening rope 22.

As shown in fig. 3, the fixing block 21 is provided with a first elastic member, the first elastic member is a second spring 35, one end of the second spring 35 is fixedly connected to the fixing block 21, and the other end of the second spring 35 is abutted by the limiting ring 31. When the retainer ring 31 slides toward the fixed block 21 and compresses the second spring 35, the second spring 35 generates a pushing force that urges the retainer ring 31 away from the fixed block 21, so that the tightening rope 22 is further tightened.

It should be noted that the first elastic member may also be a sponge block adhered to the fixing block 21, and the sponge block has certain elasticity, so that the sponge block can also generate thrust on the limiting ring 31, so that the tightening rope 22 is further tightened.

As shown in fig. 4, a first sliding plate 14 and a second sliding plate 15 are arranged in the positioning hole 12 from top to bottom, and both the first sliding plate 14 and the second sliding plate 15 are slidably embedded in the positioning hole 12; a plurality of second elastic pieces are arranged between the first sliding plate 14 and the second sliding plate 15, the second elastic pieces are third springs 16, the upper ends of the third springs 16 are fixedly connected to the first sliding plate 14, and the lower ends of the third springs 16 are fixedly connected to the second sliding plate 15. After the liquid storage bottle 13 is placed into the positioning hole 12, the bottom of the bottle body 133 is pressed on the first sliding plate 14, the third spring 16 is compressed, and the third spring 16 generates a pushing force for pushing the liquid storage bottle 13 to rise, so that the bottle neck 132 is tightly pressed on the pressing plate 24, and the liquid storage bottle 13 with different heights can be adapted to the application.

It should be noted that the second elastic member may also be a sponge block placed between the first sliding plate 14 and the second sliding plate 15, and the sponge block will enable the first sliding plate 14 and the pressing plate 24 to clamp the liquid storage bottles 13 with different heights due to its own elasticity.

As shown in fig. 4, the bottom of the base 1 is provided with a plurality of threaded holes 17 communicated with the corresponding positioning holes 12, the threaded holes 17 are internally threaded with bolts 18, and the bolts 18 abut against the lower surface of the second sliding plate 15. When the bolt 18 is rotated in the threaded hole 17, the height of the second sliding plate 15 and the first sliding plate 14 can be adjusted, so that the first sliding plate 14 and the pressing plate 24 can clamp the liquid storage bottles 13 with different heights conveniently.

The implementation principle of a liquid storage mechanism for a liquid chromatograph in the embodiment of the application is as follows: after the liquid storage bottle 13 is placed in the positioning hole 12, the bottom of the bottle body 133 is pressed on the first sliding plate 14; then, the tightening rope 22 is inserted into the through groove 211 and the inner side of the limiting ring 31, the tightening rope 22 is tightened, the tightening rope 22 causes all the tightening posts 23 to slide towards the liquid storage bottle 13, the rubber pads 25 on the tightening posts 23 are tightly pressed against the outer wall of the bottle body 133, the rubber pads 25 on the pressing plate 24 press the bottle neck 132 downwards, and the third spring 16 is compressed and causes the liquid storage bottle 13 to tightly press against the rubber pads 25 on the pressing plate 24.

Then pulling the pull ring 34 to disengage the insertion rod from the groove 312, and sliding the stop collar 31 on the tightening rope 22, so that the stop collar 31 compresses the second spring 35; then, the pull ring 34 is pulled by loosening, the first spring 33 enables the insertion rod to press the tightening rope 22 into the groove 312, the tightening rope 22 is fixed in the limit ring 31 in a limiting mode, the second spring 35 generates a pushing force enabling the limit ring 31 to be far away from the fixing block 21, the limit ring 31 is not prone to shaking relative to the fixing block 21, the tightening effect of the tightening rope 22 on the tightening column 23 is guaranteed, and the stability of the liquid storage bottle 13 in the positioning hole 12 is improved.

In summary, the abutting column 23 can slide along the radial direction of the positioning hole 12, so that the rubber pad 25 on the abutting column 23 can abut against the liquid storage bottles 13 with different outer diameters; the bolt 18 can adjust the height of the first sliding plate 14 and the second sliding plate 15 through self rotation, so that the pressing plate 24 and the first sliding plate 14 can be clamped on the liquid storage bottles 13 with different heights. Therefore, the liquid storage bottle 13 can be suitable for liquid storage bottles 13 with different specifications.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a stock solution mechanism for liquid chromatograph which characterized in that: the device comprises a base (1), wherein a plurality of circular positioning holes (12) are formed in the upper surface of the base (1), and liquid storage bottles (13) are placed in the positioning holes (12); still be equipped with a plurality of tight subassemblies of supporting (2) that correspond to locating hole (12) on base (1), support tight subassembly (2) including fixed block (21), tighten up rope (22) and a plurality of tight post (23) of supporting that are circumference setting around locating hole (12) axis, fixed block (21) are located on base (1), the one end of tightening up rope (22) is located on fixed block (21), all support tight post (23) and go up all to set up the wear-to-establish hole (231) that the other end that supplies to tighten up rope (22) wears to establish, and all support tight post (23) and all follow the radial sliding of locating hole (12) and connect in base (1).

2. The liquid storage mechanism for a liquid chromatograph of claim 1, wherein: the tightening rope limiting device is characterized by further comprising a limiting component (3) used for limiting and fixing the tightening rope (22) on the fixing block (21), wherein the limiting component (3) comprises a limiting ring (31) tightly sleeved on the tightening rope (22), and a through groove (211) for the tightening rope (22) to penetrate through in a sliding mode is formed in the fixing block (21).

3. A liquid storage mechanism for a liquid chromatograph according to claim 2, wherein: the outer wall of the limiting ring (31) is provided with an insertion groove (311), the insertion groove (311) is communicated with the inner side of the limiting ring (31), and a limiting rod (32) is inserted in the insertion groove (311).

4. A liquid storage mechanism for a liquid chromatograph according to claim 3, wherein: the limiting ring (31) is provided with a first spring (33) which enables the limiting rod (32) to abut against the tightening rope (22), one end of the first spring (33) is fixedly connected to the limiting rod (32), and the other end of the first spring (33) is fixedly connected to the limiting ring (31).

5. A liquid storage mechanism for a liquid chromatograph according to claim 2, wherein: the fixing block (21) is provided with a first elastic part for abutting against the limiting ring (31).

6. A liquid storage mechanism for a liquid chromatograph according to claim 3, wherein: the inner wall of the limiting ring (31) is provided with a groove (312) for the limiting rod (32) and the tightening rope (22) to sink into.

7. The liquid storage mechanism for a liquid chromatograph of claim 1, wherein: stock solution bottle (13) include from last bottleneck (131), bottleneck (132) and body (133) that set gradually down, and the upper end external diameter of bottleneck (132) is less than the lower extreme external diameter of bottleneck (132), all support and all be equipped with clamp plate (24) that are used for pushing down bottleneck (132) on tight post (23), and all support tight post (23) and all support tightly in body (133).

8. The liquid storage mechanism for a liquid chromatograph of claim 7, wherein: a second elastic part for abutting against the bottom of the bottle body (133) is arranged in the positioning hole (12).