CN213668033U - A chromatography column support that is used for clamping device of chromatography column and uses device - Google Patents

Abstract

The utility model discloses a clamping device for a chromatographic column and a chromatographic column support applying the same, which relate to the technical field of chromatographic column assembly and chromatographic column supports, and mainly adopt a tray with a central hole, a plurality of slide arms capable of moving along the radial direction of the central hole and flexible contact parts correspondingly connected with the end parts of the slide arms to form the clamping device; when the device is used, the chromatographic column is coaxially arranged in the central hole, and each sliding arm moves along the radial direction of the tray, so that each flexible contact part defines a clamping space matched with the periphery of the chromatographic column to clamp and limit the chromatographic column. The utility model discloses when can effectively reduce the excessive activity of appearing between cursor slide and the chromatography post, the risk that the outer barrel of chromatography post was destroyed.

Description

A chromatography column support that is used for clamping device of chromatography column and uses device

Technical Field

The utility model relates to a chromatography column assembly, chromatography column support technical field particularly, relate to a chromatography column support that is used for the clamping device of chromatography column and uses device.

Background

A chromatography column is a device that uses different proportions of substances in the stationary phase and the mobile phase to achieve separation. The chromatographic column widely used at present is mainly cylindrical, and is limited by being matched with a clamping device in the using/transporting process, so that the chromatographic column is prevented from being toppled. However, the chromatographic columns have various specifications and models, and the diameters of the chromatographic columns of each specification and model are different. This results in the chromatographic column when using/transporting, and the chromatographic column of every kind of specification, model all need dispose corresponding centre gripping equipment alone and carry out the centre gripping spacing, and it is comparatively inconvenient to use/transport. Therefore, in view of the above problems, chromatography column holding devices with movable holding jaws are gradually available on the market. Although these clamping devices are effective for chromatographic columns of different diameters, they still have certain drawbacks. In particular, chromatography columns generally contact the movable jaws through their outer cylinder, which is generally made of glass material and has limited structural properties. When the outer barrel is clamped by the movable clamping jaw, the movable clamping jaw can be used for stably clamping the chromatographic column, the movable clamping jaw is often tightly and rigidly abutted to the outer wall of the chromatographic column, excessive contact is easily caused between the movable clamping jaw and the chromatographic column, and the fragile outer barrel is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a chromatography column support that is used for the clamping device of chromatography column and uses device, it can effectively reduce the risk that the outer integument of chromatography column is destroyed by clamping device.

The embodiment of the utility model is realized like this:

a clamping device for a chromatography column, which mainly comprises a tray with a central hole and a plurality of sliding arms which are uniformly arranged around the axis of the central hole at intervals;

the sliding arm can be connected to the tray in a reciprocating manner along the radial direction of the tray, and one end of the sliding arm extends into the inner edge of the tray;

the end part of the sliding arm extending into the inner edge of the tray is connected with a flexible contact part, and the flexible contact part is made of elastic materials;

sliding grooves which correspond to the number of the sliding arms and extend along the radial direction of the tray are concavely formed on the end surface of the tray, and the sliding arms can be assembled in the corresponding sliding grooves in a sliding manner;

the sliding arm can be locked with the tray at least two different positions in the sliding stroke of the sliding arm; when the slide arms are locked with the tray, the flexible contact parts connected with the slide arms define a clamping space matched with the periphery of the chromatographic column. Preferably, the flexible contact portion has a hollow shape.

Preferably, sliding grooves corresponding to the number of the sliding arms and extending in the radial direction of the tray are concavely formed on the end surface of the tray, and the sliding arms can be slidably assembled in the corresponding sliding grooves.

Preferably, the slide arm is lockable with respect to the tray in at least two different positions during its sliding travel.

Preferably, the sliding groove is sequentially provided with at least two first locking structures along the extending direction of the sliding groove, the sliding arm is provided with a second locking structure, and the first locking structures and the second locking structures are matched with each other.

Preferably, the first locking structure is a limiting hole, the second locking structure comprises a first moving part which can be folded in the sliding arm or extend out of the sliding arm, the first moving part is matched with the limiting hole in shape, and the first moving part can be aligned with any limiting hole and extend into the limiting hole along with the movement of the sliding arm relative to the tray.

Preferably, the first moving member is a first screw, the second locking structure includes a first threaded hole disposed in the sliding arm and in threaded connection with the first screw, and the first threaded hole penetrates through the sliding arm.

In another preferred embodiment, the sliding groove has a limiting surface in sliding fit contact with the sliding arm in the whole sliding stroke of the sliding groove, and the limiting surface and the inner bottom surface of the sliding groove are respectively in contact with two opposite sides of the sliding arm in the central hole axis direction so as to limit the relative displacement of the sliding arm and the tray in the central hole axis direction.

In another preferred embodiment, the slide arm is formed with a second threaded hole having an axis parallel to the axis of the central hole, the second threaded hole penetrates through the slide arm, and the slide arm further comprises a second screw inserted into the second threaded hole and in threaded connection with the second threaded hole, and the second screw can be selectively screwed into the slide arm through rotation thereof, or screwed out of the slide arm and abutted against the inner bottom surface of the slide groove.

The utility model also provides a chromatography column support, including as above be used for the clamping device of chromatography column.

Since the technical scheme is used, the beneficial effects of the utility model include:

the utility model mainly adopts a tray with a central hole, a plurality of slide arms which can move along the radial direction of the central hole and flexible contact parts which are correspondingly connected with the end parts of the slide arms to form a clamping device; when the device is used, the chromatographic column is coaxially arranged in the central hole, and each sliding arm moves along the radial direction of the tray, so that each flexible contact part defines a clamping space matched with the periphery of the chromatographic column to clamp and limit the chromatographic column. The utility model discloses when can effectively reduce the excessive activity of appearing between cursor slide and the chromatography post, the risk that the outer barrel of chromatography post was destroyed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts.

Fig. 1 is a schematic top view of embodiment 1 of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic view of locking engagement between the slide arm and the slide groove in embodiment 1 of the present invention;

fig. 4 is a schematic top view of embodiment 2 of the present invention;

fig. 5 is a schematic view of the locking cooperation between the slide arm and the chute in embodiment 2 of the present invention.

[ Specification of symbols ]

1-tray, 1 a-central hole, 2-sliding arm, 3-flexible contact part, 4-limiting hole, 5-first screw rod, 6-clamping block, 6 a-limiting surface and 7-second screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be connected, detachably connected, or integrally connected, for example; 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 in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 and 2, the main body of the present embodiment is a chromatography column holder, which includes a support frame (not shown), the support frame is connected with at least one clamping device for clamping and limiting a chromatography column, when in use, the chromatography column is coaxially placed in a central hole 1a, and supported by a base at the bottom of the holder, and each clamping device plays a role in preventing the chromatography column from toppling over.

The clamping device mainly comprises a tray 1 with a central hole 1a and a plurality of sliding arms 2 which are uniformly arranged around the axis of the central hole 1a at intervals;

the slide arm 2 can be connected to the tray 1 in a reciprocating manner along the radial direction of the tray 1, and one end of the slide arm 2 extends into the inner edge of the tray 1;

the end part of the sliding arm 2 extending into the inner edge of the tray 1 is connected with a flexible contact part 3, and the flexible contact part 3 is made of elastic materials.

The sliding arm 2 can be locked with the tray 1 at least two different positions in the sliding stroke of the sliding arm; when the slide arms 2 are locked with the tray 1, the flexible contact parts 3 connected with each slide arm 2 define a clamping space matched with the periphery of the chromatographic column.

When facing chromatographic columns with different specifications and models, an implementer can reduce or enlarge the size of a clamping space defined by the flexible contact parts 3 by enabling the sliding arms 2 to be opposite to each other so as to adapt to the diameter change of different chromatographic columns. Meanwhile, the flexible contact part 3 is made of elastic material, so that the contact with the outer cylinder of the chromatographic column is not rigid. When excessive movement occurs between the slide arm 2 and the tray 1, the flexible contact part 3 can deform, and the damage to the outer cylinder of the chromatographic column is avoided. Wherein, the above-mentioned clamping space is fit for the periphery of chromatographic column, means that the size of clamping space is identical with the peripheral diameter size of chromatographic column.

More specifically, referring to fig. 2, regarding the realization of the function that the sliding arms 2 can reciprocate along the radial direction of the tray 1, in embodiment 1, sliding grooves corresponding to the number of the sliding arms 2 and extending along the radial direction of the tray 1 are concavely formed on the end surface of the tray 1, and the sliding arms 2 can be slidably assembled in the corresponding sliding grooves. Meanwhile, referring to fig. 1, it can be known that: in embodiment 1, the number of the slide arms 2 and the corresponding slide grooves is 4, and the slide arms 2 are at the same height.

As a preferred embodiment, in embodiment 1, the flexible contact portion 3 has a cylindrical shape, and the outer peripheral portion of the flexible contact portion 3 is used for contacting with a chromatography column; the purpose of this arrangement is to: compared with the flexible contact part 3 in a solid shape, the flexible contact part 3 in a hollow shape is easy to deform in the process of contacting with the chromatographic column, so that an implementer can judge the stress condition of the chromatographic column more intuitively, harm is avoided, and the risk of excessive contact between the clamping device and the chromatographic column is further reduced.

Meanwhile, with the above-described clamping device, if a more stable clamping effect is desired, it is necessary to achieve locking between the slider 2 and the tray 1. In embodiment 1, therefore, the slide arm 2 can be locked with respect to the tray 1 in at least two different positions during its sliding stroke. This kind of arrangement can ensure that whole clamping device can realize spacing centre gripping steadily to the chromatographic column of at least two kinds of different diameters.

Regarding the realization of the above-mentioned locking function, a mode of respectively arranging locking components which are mutually matched on the sliding groove and the sliding arm 2 can be adopted. For example, in embodiment 1, the sliding chute is sequentially provided with at least two first locking structures along the extending direction thereof, and the sliding arm 2 is provided with a second locking structure, and the first locking structure and the second locking structure are mutually matched. Wherein, the implementer moves the slide arm 2 and the flexible contact part 3 to proper positions along the sliding chute, and then the second locking structure is in adaptive connection with the corresponding first locking structure to lock the slide arm 2 and the sliding chute.

As for the first locking structure and the second locking structure employed in embodiment 1, it is specifically: the first locking structure is a limiting hole 4, the second locking structure comprises a first moving part which can be folded in the sliding arm 2 or extend out of the sliding arm 2, the shape of the first moving part is matched with that of the limiting hole 4, and the first moving part can be aligned with any limiting hole 4 and extend into the limiting hole 4 along with the movement of the sliding arm 2 relative to the tray 1.

Referring to fig. 3, in the present embodiment, the first moving member is a first screw 5, the second locking structure includes a first threaded hole disposed in the sliding arm 2 and in threaded connection with the first screw 5, and the first threaded hole penetrates through the sliding arm 2.

Wherein, the alignment means that the axes of the two are collinear. The practitioner can make first screw rod 5 stretch into in the spacing hole 4 with first screw hole alignment through screw in first screw rod 5, carries out the locking.

Meanwhile, in embodiment 1, the above-mentioned limiting hole 4 is specifically arranged on the inner bottom surface of the chute, and the axial direction thereof is parallel to the axis of the central hole 1a, while the axial direction of the first threaded hole is correspondingly parallel to the axis of the central hole 1 a. The operator can also place the above-mentioned limiting hole 4 on the inner side of the chute. In embodiment 1, the bottom end of the first screw rod 5 is used to extend into the limiting hole 4, and the top end thereof extends out of the first threaded hole, i.e. the sliding arm 2, so that the operator can perform screwing in/out operation. The same effect can be achieved by the fact that the first screw rod 5 and the first threaded hole are replaced by the pin shaft and the pin hole.

Example 2

Referring to fig. 4, embodiment 2 is substantially the same as embodiment 1, but embodiment 2 is an optimized improvement on the locking manner between the chute and the slide arm 2, and specifically, the slide arm 2 can be locked with respect to the tray 1 at any position within the sliding stroke of the slide arm.

Referring to fig. 5, in embodiment 2, the sliding groove has a fixture block 6 extending to the top of the sliding arm 2, a bottom surface of the fixture block 6 forms a limiting surface 6a which is in sliding fit contact with the sliding arm 2 in the whole sliding stroke of the sliding groove, the limiting surface 6a and an inner bottom surface of the sliding groove are respectively in contact with two opposite sides of the sliding arm 2 in the axial direction of the central hole 1a to limit the relative displacement of the sliding arm 2 and the tray 1 in the axial direction of the central hole 1a, the sliding arm 2 has a second threaded hole whose axis is parallel to the axial direction of the central hole 1a, the second threaded hole penetrates through the sliding arm 2, and the sliding groove further includes a second screw 7 inserted into the second threaded hole and in threaded connection with the second threaded hole.

As described above, the practitioner moves the slide arm 2, the flexible contact portion 3, to an arbitrary position along the chute. Then, the second screw 7 is unscrewed, so that the second screw 7 is abutted against the inner bottom surface of the chute. At this time, the second screw 7 tends to push up the entire slider arm 2 as the second screw 7 is continuously unscrewed. However, due to the existence of the limiting surface 6a, the slide arm 2 does not fall off the sliding chute, but the contact pressure between the slide arm 2 and the limiting surface 6a is increased, the friction force between the slide arm 2 and the limiting surface 6a is increased, and the slide arm 2 and the sliding chute can not move relatively, so that the lock of the slide arm 2 and the sliding chute is realized. Obviously, the application range of the embodiment 2 is wider, but compared with the embodiment 1, the locking stability is limited, and the implementation personnel can specifically select the locking stability according to the requirements of the implementation personnel.

In addition, the practitioner may form the limiting surface 6a by replacing the above-mentioned latch 6 with another structure, which will not be described again.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A holding device for chromatography columns, characterized in that it is mainly composed of a tray (1) with a central hole (1a) and a plurality of slide arms (2) arranged around the axis of the central hole (1a) at regular intervals;

the sliding arm (2) is arranged on the tray and can reciprocate along the radial direction of the tray (1), and one end of the sliding arm (2) extends into the inner edge of the tray (1);

the end part of the sliding arm (2) extending into the inner edge of the tray (1) is connected with a flexible contact part (3), and the flexible contact part (3) is made of elastic materials;

sliding grooves which correspond to the number of the sliding arms (2) and extend along the radial direction of the tray (1) are concavely formed on the end surface of the tray (1), and the sliding arms (2) can be assembled in the corresponding sliding grooves in a sliding manner;

the sliding arm (2) can be locked with the tray (1) at least two different positions in the sliding stroke of the sliding arm; when the sliding arms (2) are locked with the tray (1), the flexible contact parts (3) connected with the sliding arms (2) define a clamping space matched with the periphery of the chromatographic column.

2. Clamping device for chromatography columns according to claim 1, characterized in that the flexible contact part (3) is hollow.

3. A holding device for a chromatography column according to claim 1, wherein the slide groove is provided with at least two first locking structures in sequence along its extension direction, and the slide arm (2) is provided with a second locking structure, and the first locking structure and the second locking structure are adapted to each other.

4. A holding device for chromatography columns as claimed in claim 3, characterized in that the first locking structure is a limiting hole (4), the second locking structure comprises a first moving member which can be folded in the slide arm (2) or extended out of the slide arm (2), the first moving member is matched with the limiting hole (4) in shape, and the first moving member can be selectively aligned with any limiting hole (4) and extended into the limiting hole (4) along with the movement of the slide arm (2) relative to the tray (1).

5. A holding device for a chromatography column according to claim 4, wherein the first moving member is a first screw (5), and the second locking structure comprises a first threaded hole provided in the slide arm (2) and threadedly connected to the first screw (5), the first threaded hole extending through the slide arm (2).

6. The clamping device for a chromatography column according to claim 1, wherein the sliding chute has a limiting surface (6a) in sliding fit contact with the sliding arm (2) in the whole sliding stroke of the sliding chute, and the limiting surface (6a) and the inner bottom surface of the sliding chute are respectively in contact with the two opposite sides of the sliding arm (2) in the axial direction of the central hole (1a) so as to limit the relative displacement of the sliding arm (2) and the tray (1) in the axial direction of the central hole (1 a).

7. The clamping device for chromatography columns according to claim 6, characterized in that the slide arm (2) has a second threaded hole formed therein with its axis parallel to the axis of the central hole (1a), said second threaded hole extending through the slide arm (2), and a second threaded rod (7) inserted into and threadedly connected to the second threaded hole.

8. A chromatography column holder, comprising a holding device for a chromatography column according to any one of claims 1 to 7.

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