CN211263321U

CN211263321U - Positioning mechanism of chromatographic column in liquid chromatographic analyzer

Info

Publication number: CN211263321U
Application number: CN201922177905.7U
Authority: CN
Inventors: 孟继锋; 武嘉康
Original assignee: Shanxi Ercheng Technology Co Ltd
Current assignee: Shanxi Ercheng Technology Co Ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-08-14
Anticipated expiration: 2029-11-30

Abstract

The utility model discloses a positioning mechanism of a chromatographic column in a liquid chromatographic analyzer, which belongs to the technical field of liquid chromatographic analyzers and comprises a shell and a locking strip, wherein a positioning plate mechanism is embedded in the locking strip and comprises a positioning plate embedded in the locking strip, the top of the positioning plate is uniformly provided with a positioning hole, the inner wall at the rear side of the positioning hole is provided with a first arc-shaped positioning clamp plate, the front side in the positioning hole is provided with a second arc-shaped positioning clamp plate matched with the first positioning clamp plate, the positioning plate mechanism of the utility model fixes the chromatographic column in the positioning hole by matching the first positioning clamp plate and the second positioning clamp plate, and can drive a screw rod by rotating a rotating button, the screw rod drives a movable block, the movable block drives a connecting block, and further drives the second positioning clamp plate to move, thereby being convenient to position and fix according to the specification of the chromatographic, the multi-group chromatographic columns are fixed without influencing each other, so that the multi-group chromatographic columns with different specifications can be conveniently fixed, and the use practicability is high.

Description

Positioning mechanism of chromatographic column in liquid chromatographic analyzer

Technical Field

The utility model relates to a liquid chromatographic analysis appearance technical field specifically is a positioning mechanism of chromatographic column in liquid chromatographic analysis appearance.

Background

The liquid chromatographic analyzer 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-solid or immiscible two liquids.

Wherein, a chromatography column in a tubular shape is required to be used in the use process of the analyzer. Current chromatographic column is usually placed through extra support, has improved use cost greatly, and occupation space is great simultaneously, the positioning mechanism of chromatographic column in the liquid chromatographic analyzer that proposes in chinese patent number "CN 201720006003.5", this patent is disclosed "the positioning mechanism of chromatographic column in this liquid chromatographic analyzer, and liquid chromatographic analyzer is including the inside casing that is the cavity, this mechanism locking strip and locating plate, have a plurality of recessed locating holes along its length direction on the locking strip, above-mentioned locating plate inner end can inlay in locking strip department, the locating plate outer end has a plurality of and is long banding locating strip and has elasticity, and two adjacent locating strips form a set of location portion that is used for fixing a position the chromatographic column, the locating plate outer end has a plurality of location portion. This mechanism can improve the suitability of liquid chromatographic analysis appearance ", though this patent has solved the location to the chromatographic column and has placed the problem, nevertheless the use has following defect: 1. fix a position the chromatography column through buckling parts one and buckling parts two on the adjacent elastic location strip that has, the use has certain defect, the specification of the chromatography column of fixing must match rather than, otherwise adjacent location strip can influence each other, lead to can not fix and fix the multiunit chromatography column, 2, while life is short, at long-term fixed in-process, the location strip fragile, and then lose the stationary force to the chromatography column, the easy appearance is when using, the chromatography column condition of damage that drops, for this reason, we propose a positioning mechanism of chromatography column in the liquid chromatography appearance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a positioning mechanism of chromatographic column in liquid chromatographic analyzer to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a positioning mechanism of a chromatographic column in a liquid chromatographic analyzer comprises a shell and a locking strip, wherein the locking strip is arranged outside the shell, a plurality of groups of concave positioning openings are arranged on the locking strip along the length direction of the locking strip, a positioning plate mechanism is embedded in the locking strip and comprises a positioning plate embedded in the locking strip, positioning holes are uniformly formed in the top of the positioning plate, an arc-shaped positioning clamp plate I is arranged on the inner wall of the rear side of the positioning hole, a stress spring is uniformly arranged on the outer wall of the rear side of the positioning clamp plate I, the other end of the stress spring is connected with the inner wall of the rear side of the positioning hole, an insert block is arranged on the front side of the top of the positioning plate and is positioned on the front side of the positioning hole, an arc-shaped positioning clamp plate II matched with the positioning clamp plate I is arranged on the front, the locating block is characterized in that the bottom of the connecting block is attached to the top of the locating plate, a limiting sliding block is arranged on the front side of the bottom of the connecting block, a limiting sliding groove matched with the limiting sliding block is longitudinally formed in the front side of the top of the locating plate, a movable block is welded in the center of the top of the connecting block, a screw corresponding to the locating hole is evenly inserted into the front side of the insert, a supporting block is welded to the rear side of the top of the connecting block, and the rear end of the screw penetrates through the movable block and.

Furthermore, a driven block is fixedly arranged at the center of the top and the bottom of the positioning clamping plate, the top of the positioning clamping plate is attached to the bottom of the positioning plate, the bottom of the driven block is attached to the bottom of the positioning plate, a sliding block is arranged on one side, opposite to the driven block, of the driven block, a sliding groove matched with the sliding block is longitudinally formed in the top and the bottom of the positioning plate, and the sliding groove is located on the rear side of the positioning hole.

Furthermore, one side of the first positioning clamp plate and the opposite side of the second positioning clamp plate are both provided with an arc-shaped elastic layer, and one side of the elastic layer, which is close to the circle center of the positioning hole, is uniformly provided with semicircular anti-skidding protrusions.

Further, the outer wall of the screw rod is sleeved with a nut in a threaded manner, and the movable block is fixedly sleeved on the outer wall of the nut.

Furthermore, the front end of the screw is welded with a rotating button, and the outer wall of the rotating button is sleeved with an anti-slip sleeve.

Furthermore, the positioning plate is provided with a connecting part which is stably connected with the positioning hole on the locking strip.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the utility model discloses the locating plate mechanism who sets up fixes the chromatography column in the locating hole through the cooperation of locating splint one and locating splint two to the accessible rotates the knob and drives the screw rod, and the screw rod drives the movable block, and the movable block drives the connecting block, and then drives locating splint two and remove, conveniently fixes a position fixedly according to the specification of chromatography column, and sets up the multiunit, does not influence each other when fixing multiunit chromatography column, conveniently fixes the chromatography column of the different specifications of multiunit, and the practicality is high;

2) the utility model discloses be provided with elastic layer and non-slip raised on positioning splint one and positioning splint two, guarantee that positioning splint one and the clamping force of positioning splint two pairs of chromatography columns still avoid the clamp force to cause the damage or produce the indentation to the chromatography column too big simultaneously, be provided with stress spring, further improve the clamping force of positioning splint one and positioning splint two pairs of chromatography columns, avoid the chromatography column the condition that drops to appear, be provided with from the piece, slider and spout, guarantee the stable cooperation of positioning splint one and positioning splint two, long service life, guarantee the stability of work.

Drawings

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

FIG. 2 is a schematic structural view of the positioning plate mechanism of the present invention;

fig. 3 is an enlarged view of the structure a in fig. 2 according to the present invention.

In the figure: 1. a housing; 2. a locking bar; 3. a positioning plate mechanism; 31. positioning a plate; 32. positioning holes; 33. positioning a first clamping plate; 34. a stress spring; 35. an insert; 36. a screw; 37. connecting blocks; 38. a movable block; 39. a second positioning clamp plate; 391. an elastic layer; 392. anti-skid projections; 393. a driven block; 394. a chute; 395. the knob is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a positioning mechanism of chromatographic column in liquid chromatographic analyzer, please refer to fig. 1, comprising a shell 1 and a locking bar 2, wherein the locking bar 2 is arranged outside the shell 1, the locking bar 2 is provided with a plurality of groups of concave positioning holes along the length direction thereof, the locking bar 2 is provided with a positioning plate mechanism 3 in an embedding manner, the shell 1, the locking bar 2 and the positioning holes are disclosed in the prior art, such as the positioning mechanism of chromatographic column in liquid chromatographic analyzer proposed in patent No. CN201720006003.5, the patent discloses that "liquid chromatographic analyzer comprises a shell with a cavity inside, the positioning mechanism of chromatographic column in liquid chromatographic analyzer comprises a locking bar and a plurality of concave positioning holes along the length direction thereof, the inner end of the positioning plate can be embedded in the locking bar, the number of the locking bar is at least two, the inner end of the positioning plate is connected with all the locking bars" as disclosed, the utility model is not the technical characteristics of the utility model, and the technical personnel in the field can directly obtain the data;

referring to fig. 1 and 2, the positioning plate mechanism 3 includes a positioning plate 31 embedded in the locking bar 2, positioning holes 32 are uniformly formed in the top of the positioning plate 31, and the positioning holes 32 are used for installing and positioning the structure of the chromatographic column;

referring to fig. 2, an arc-shaped first positioning clamp plate 33 is arranged on the inner wall of the rear side of the positioning hole 32, a stress spring 34 is uniformly arranged on the outer wall of the rear side of the first positioning clamp plate 33, the other end of the stress spring 34 is connected with the inner wall of the rear side of the positioning hole 32, the first positioning clamp plate 33 is used for being matched with a second positioning clamp plate 39 to position the chromatographic column, and the stress spring 34 enables the first positioning clamp plate 33 to be tightly attached to the chromatographic column, so that the positioning fixing force is improved;

referring to fig. 1 and 2, an insert 35 is disposed on the front side of the top of the positioning plate 31, and can be fixed by a screw or a bolt, in order to prevent the insert 35 from affecting the movement of the connecting block 37, as shown in fig. 1, the bottom of the insert 35 is provided with a notch for the movement of the connecting block 37, the insert 35 is positioned at the front side of the positioning hole 32, an arc-shaped positioning clamp plate II 39 matched with the positioning clamp plate I33 is arranged at the front side in the positioning hole 32, the positioning clamp plate II 39 is used for being matched with the positioning clamp plate I33 to position the chromatographic column, a connecting block 37 is fixedly arranged at the center of the top of the positioning clamp plate II 39, the fixing mode of screws can be adopted, the bottom of the connecting block 37 is attached to the top of the positioning plate 31, the front side of the bottom of the connecting block 37 is provided with a limiting slide block, a limiting sliding groove matched with the limiting sliding block is longitudinally arranged on the front side of the top of the positioning plate 31, and the movable block 38 is prevented from being driven by the screw 36 to rotate while the positioning clamp plate II 39 is ensured to move stably by adopting the matching of the limiting sliding block and the limiting sliding groove;

referring to fig. 1 and 2, a movable block 38 is welded at the center of the top of a connecting block 37, three groups of positioning holes 32 are uniformly inserted into the front side of an insert 35, three groups of positioning clamp plates 33, two groups of positioning clamp plates 39, three groups of screws 36 and the like are correspondingly arranged, a supporting block is welded at the rear side of the top of the connecting block 37, the rear end of each screw 36 penetrates through the movable block 38 and is movably connected with the front side of the supporting block through a bearing, the two positioning clamp plates 39 at the front side are driven to move by rotating the screws 36, and chromatography columns with different specifications are conveniently positioned and fixed by the two positioning clamp plates 39 and the one positioning clamp plate 33.

As shown in fig. 2: driven blocks 393 are fixedly arranged in the centers of the top and the bottom of the first positioning clamping plate 33, a screw or screw fixing mode can be adopted, the bottom of the top driven block 393 is attached to the top of the positioning plate 31, the top of the bottom driven block 393 is attached to the bottom of the positioning plate 31, sliders are arranged on the opposite sides of the two driven blocks 393, sliding grooves 394 matched with the sliders are longitudinally formed in the top and the bottom of the positioning plate 31, the sliding grooves 394 are located on the rear sides of the positioning holes 32, and the sliders and the sliding grooves 394 are matched to guide and limit the first positioning clamping plate 33 after moving, so that the first positioning clamping plate 33 cannot move up and down or dislocate;

as shown in fig. 3: the opposite sides of the first positioning clamping plate 33 and the second positioning clamping plate 39 are both provided with an arc-shaped elastic layer 391, the elastic layer 391 can be made of elastic rubber materials, damage to the chromatographic column due to overlarge clamping force is avoided, one side, close to the circle center of the positioning hole 32, of the elastic layer 391 is uniformly provided with semicircular anti-skidding protrusions 392, the anti-skidding protrusions 392 improve the friction force in contact with the chromatographic column, the clamping force of positioning is further improved, and the positioning clamping plates can be made of elastic rubber materials;

as shown in fig. 2 and 3: a nut (not shown in the figure) is sleeved on the outer wall of the screw 36 in a threaded manner, the movable block 38 is fixedly sleeved on the outer wall of the nut in a fixed manner, the movable block 38 is welded and sleeved on the outer wall of the nut, and the movable block 38 is driven by the threaded cooperation of the screw 36 and the nut to further drive the connecting block 37 to enable the second positioning clamp plate 39 to move;

as shown in fig. 2: the front end of the screw 36 is welded with a rotating button 395, and an anti-slip sleeve is sleeved on the outer wall of the rotating button 395 and can be made of silica gel materials, so that a user can drive the screw 36 to rotate conveniently;

as shown in fig. 1: the positioning plate 31 is provided with a coupling portion stably connected to a positioning opening of the locking bar 2, which is disclosed in the prior art, for example, a positioning mechanism of a chromatographic column in a liquid chromatograph proposed in patent No. CN201720006003.5, which discloses "the coupling portion has the following options: one of the two connecting parts is a plurality of raised strips protruding from the side part of the positioning plate, and the raised strips are propped against the side part of the positioning opening; its two, the rubber gasket of coupling part for linking firmly in the interior end department of locating plate, above-mentioned rubber gasket is compressed between locating plate and location strip "" in this scheme, and the rubber gasket is the U-shaped and the inner of above-mentioned locating plate inlays in the U-shaped port department of rubber gasket, and the rubber gasket links firmly in locating plate the inner through glue "because open, and do not belong to the utility model discloses technical characteristic, technical field person can directly acquire.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a positioning mechanism of chromatographic column in liquid chromatographic analyzer, includes casing (1) and locking strip (2), locking strip (2) set up in the casing (1) outside, its characterized in that: a plurality of groups of concave positioning holes are formed in the locking strip (2) along the length direction of the locking strip, a positioning plate mechanism (3) is embedded in the locking strip (2), the positioning plate mechanism (3) comprises a positioning plate (31) embedded in the locking strip (2), positioning holes (32) are uniformly formed in the top of the positioning plate (31), an arc-shaped positioning clamp plate I (33) is arranged on the inner wall of the rear side of the positioning hole (32), stress springs (34) are uniformly arranged on the outer wall of the rear side of the positioning clamp plate I (33), the other end of each stress spring (34) is connected with the inner wall of the rear side of the positioning hole (32), an insert (35) is arranged on the front side of the top of the positioning plate (31), the insert (35) is located on the front side of the positioning hole (32), and an arc-shaped positioning clamp plate II (39) matched with the positioning clamp plate I (33, the fixed connecting block (37) that is provided with in location splint two (39) top central authorities, connecting block (37) bottom and locating plate (31) top laminating, connecting block (37) bottom front side is provided with limit slide, and locating plate (31) top front side vertically is provided with the spacing spout that matches with limit slide, the welding of connecting block (37) top central authorities has movable block (38), insert (35) front side and evenly peg graft and have screw rod (36) that correspond with locating hole (32), connecting block (37) top rear side welding has the supporting shoe, and screw rod (36) rear end runs through movable block (38) and through bearing and supporting shoe front side swing joint.

2. The positioning mechanism for a chromatographic column in a liquid chromatographic analyzer as set forth in claim 1, characterized in that: locating splint (33) top and bottom central authorities all fix and are provided with driven piece (393), top driven piece (393) bottom and locating plate (31) top laminating, bottom driven piece (393) top and locating plate (31) bottom laminating, two sets of the relative one side of driven piece (393) all is provided with the slider, and locating plate (31) top and bottom all vertically offer spout (394) that match with the slider, and spout (394) are located locating hole (32) rear side.

3. The positioning mechanism for a chromatographic column in a liquid chromatographic analyzer as set forth in claim 1, characterized in that: the opposite sides of the first positioning clamping plate (33) and the second positioning clamping plate (39) are respectively provided with an arc-shaped elastic layer (391), and one side, close to the circle center of the positioning hole (32), of the elastic layer (391) is uniformly provided with semicircular anti-skidding protrusions (392).

4. The positioning mechanism for a chromatographic column in a liquid chromatographic analyzer as set forth in claim 1, characterized in that: the outer wall of the screw rod (36) is sleeved with a nut in a threaded manner, and the movable block (38) is fixedly sleeved on the outer wall of the nut.

5. The positioning mechanism for a chromatographic column in a liquid chromatographic analyzer as set forth in claim 1, characterized in that: the front end of the screw rod (36) is welded with a rotating button (395), and the outer wall of the rotating button (395) is sleeved with an anti-slip sleeve.

6. The positioning mechanism for a chromatographic column in a liquid chromatographic analyzer as set forth in claim 1, characterized in that: the positioning plate (31) is provided with a connecting part which is stably connected with a positioning hole on the locking strip (2).