Fixing frame

Abstract

The fixing frame comprises a bottom plate, a pair of vertical rods are installed on the bottom plate, the vertical rods are sleeved with connecting mechanisms, and middle rings are arranged on the connecting mechanisms. A plurality of movable rods are arranged on the middle ring in a penetrating mode, a lower ring is arranged at the lower ends of the movable rods, overhanging arms are connected to one pair of movable rods, concave parts are installed at the outer side ends of the overhanging arms, actuating rods are arranged at the upper ends of the concave parts, a pair of vertical plates are installed on the periphery of the middle ring, telescopic rods are arranged at the upper ends of the vertical plates in a penetrating mode, and clamping seats are arranged at the inner side ends of the telescopic rods. The outer side ends of the telescopic rods are sleeved with springs, the springs are located on the outer sides of the vertical plates, outer plates are arranged at the outer side ends of the telescopic rods, inner pressing plates are arranged on the outer walls of the outer plates, the peripheries of the acting rods are tangent to the peripheries of the inner pressing plates, slopes are formed on the outer walls of the inner pressing plates, and the upper ends of the slopes extend inwards in an inclined mode. According to the utility model, the stability of the chromatographic column after being placed can be improved, and the chromatographic column can be prevented from being damaged during limiting and restraining.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatography columns, in particular to a fixing rack. Background Technique

[0002] A chromatography column is a device for separating and purifying different substances in a liquid. When separating and purifying substances, it needs to be vertically fixed on a placement rack. The existing fixing rack currently used consists of a base, a vertical rod, and a pair of fixing clips. This kind of fixing rack has the problems that it is inconvenient to adjust the height of the chromatography column, and the stability after placement is poor. During the separation and purification process, the shaking of the chromatography column affects the separation and purification effect. Moreover, the existing fixing clips are locked by screwing, which is easy to damage the chromatography column during operation. Content of the Utility Model

[0003] The utility model provides a fixing rack to solve the above-mentioned deficiencies of the prior art, solve the problem of poor stability after placement, solve the problem that the chromatography column is easily damaged during clamping, and has strong practicability.

[0004] In order to achieve the purpose of the utility model, the following technology is proposed:

[0005] A fixing rack includes a bottom plate, a pair of vertical rods are installed on the bottom plate, a connecting mechanism is sleeved on the vertical rods, the connecting mechanism has a middle ring, and the middle ring can initially position the outside of the chromatography column.

[0006] A plurality of movable rods are inserted through the middle ring. The lower end of the movable rod is provided with a lower ring. One pair of movable rods is connected with an outer extension arm. The outer end of the outer extension arm is installed with a concave member. The upper end of the concave member is provided with an acting rod. A pair of vertical plates are installed on the outer circumference of the middle ring. The upper end of the vertical plate is provided with a telescopic rod. The inner end of the telescopic rod is provided with a clamping seat. The outer end of the telescopic rod is sleeved with a spring. The spring is located outside the vertical plate. The outer end of the telescopic rod is provided with an outer plate. An inner pressing plate is formed on the outer wall of the outer plate. The outer circumference of the acting rod is tangent to the outer circumference of the inner pressing plate. The outer wall of the inner pressing plate is formed with an inclined surface, and the upper end of the inclined surface extends inwardly. When the chromatography column is placed, the lower end of the chromatography column acts on the lower ring, and the lower ring restricts the lower end of the chromatography column. At the same time, due to the placement of the chromatography column, it is easy to make the movable rod move downward. When the movable rod moves downward, the acting rod acts on the inner pressing plate, and through the clamping seat acts on the outer circumference of the chromatography column, so as to restrict the chromatography column through the clamping seat.

[0007] Further, the connecting mechanism includes a collar sleeved on the vertical rod. A rotating opening is formed on the circumferential side of the collar. A pair of lugs are provided at the rotating opening. A rotating block is rotatably provided at the outer end of the lug. An outer top screw rod is provided on the rotating block. The inner end of the outer top screw rod abuts against the outer circumference of the vertical rod. The collar is connected to the middle ring through a middle plate. When the provided outer top screw rod rotates, its inner end can act on the vertical rod, thereby locking the height of the middle ring.

[0008] Further, the inner end of the outer top screw rod is in a spherical structure to facilitate the rotation operation of the outer top screw rod.

[0009] Further, a terminal ball is provided at the outer end of the outer top screw rod to facilitate the self-rotation of the outer top screw rod, thereby facilitating the fastening of the position of the middle ring.

[0010] Further, the inner circumference of the lower ring is a conical surface to adapt to the structure at the lower end of the chromatography column and ensure the stability after placement.

[0011] Further, the inner wall of the clamping seat is in an inwardly concave arc structure to improve the adaptability and the reliability after limiting.

[0012] The advantages of the above technical solutions are as follows:

[0013] The utility model can improve the stability of the chromatography column after placement, and can avoid damaging the chromatography column during the limiting constraint. Description of the Drawings

[0014] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings.

[0015] Figure 1 The three-dimensional structure diagram of one of the embodiments is shown.

[0016] Figure 2 The enlarged view of part A is shown.

[0017] Figure 3 The enlarged view of part B is shown. Detailed Embodiment

[0018] As Figures 1 to 3 shown, a fixing rack includes a bottom plate 1. A pair of vertical rods 2 are installed on the bottom plate 1. A connecting mechanism is sleeved on the vertical rods 2. A middle ring 25 is provided on the connecting mechanism.

[0019] The connecting mechanism includes a ring 20 sleeved on the vertical pole 2, a rotating opening is opened on the peripheral side of the ring 20, a pair of lugs 21 are provided at the rotating opening, a rotating block 22 is rotatably provided at the outer end of the lug 21, an external top screw rod 23 is provided on the rotating block 22, the inner end of the external top screw rod 23 is a spherical structure, the outer end of the external top screw rod 23 is provided with an end ball, the inner end of the external top screw rod 23 is tightly pressed against the outer periphery of the vertical pole 2, and the ring 20 is connected to the middle ring 25 through the middle plate 24.

[0020] A plurality of movable rods 26 are provided on the middle ring 25, and a lower ring 27 is provided at the lower end of the movable rod 26, and the inner circumference of the lower ring 27 is a conical surface, wherein a pair of movable rods 26 are connected to an outrigger arm 28, and a concave piece 29 is installed at the outer end of the outrigger arm 28, and an action rod 37 is provided at the upper end of the concave piece 29, and a pair of vertical plates 30 are installed at the outer circumference of the middle ring 25, and a telescopic rod 31 is provided at the upper end of the vertical plate 30, and a clamping seat 32 is provided at the inner end of the telescopic rod 31, and the inner wall of the clamping seat 32 is a concave arc structure, and a spring 34 is sleeved at the outer end of the telescopic rod 31, and the spring 34 is located on the outer side of the vertical plate 30, and an outer plate 35 is provided at the outer end of the telescopic rod 31, and an inner pressure plate 36 is provided on the outer wall of the outer plate 35, and the outer circumference of the action rod 37 is tangent to the outer circumference of the inner pressure plate 36, and the outer wall of the inner pressure plate 36 is formed with an inclined surface, and the upper end of the inclined surface extends inwardly.

[0021] When placing the chromatography column in this embodiment, the operator passes the lower end of the chromatography column through the middle ring 25 and places the lower end of the chromatography column on the lower ring 27 .

[0022] When placing, the gravity of the chromatography column will cause the lower ring 27 to move downward, and when the lower ring 27 moves downward, the movable rod 26 will be pulled downward, and the downward movement of the movable rod 26 will pull the action rod 37 downward, and when the action rod 37 acts on the inner pressure plate 36, when the action rod 37 moves along the inclined surface of the inner pressure plate 36, the clamping seat 32 acts on the outer periphery of the chromatography column and completes the positioning of the chromatography column. Since this positioning is achieved with the help of the gravity of the chromatography column itself, it is convenient to clamp the chromatography column, and the stability of the limit can be ensured after clamping.

[0023] After placement, when the height of the chromatography column needs to be adjusted, the operator can move the middle ring 25 upwards. After moving into place, the outer push screw 23 can be rotated downwards to make the inner end of the outer push screw 23 press against the outer periphery of the vertical rod 2, thereby completing the adjustment of the height of the chromatography column. Of course, the stability after adjustment can also be ensured by rotating the outer push screw.

[0024] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A fixing bracket, characterized in that, It includes a bottom plate (1), and a pair of vertical rods (2) are installed on the bottom plate (1); A connecting mechanism is sleeved on the vertical rod (2), and a middle ring (25) is provided on the connecting mechanism; A plurality of movable rods (26) are passed through the middle ring (25). A lower ring (27) is provided at the lower end of the movable rod (26). An outer extension arm (28) is connected to a pair of the movable rods (26). A concave member (29) is installed at the outer end of the outer extension arm (28). An acting rod (37) is provided at the upper end of the concave member (29). A pair of vertical plates (30) are installed on the outer periphery of the middle ring (25). A telescopic rod (31) is passed through the upper end of the vertical plate (30). A clamping seat (32) is provided at the inner end of the telescopic rod (31). A spring (34) is sleeved on the outer end of the telescopic rod (31). The spring (34) is located outside the vertical plate (30). An outer plate (35) is provided at the outer end of the telescopic rod (31). An inner pressing plate (36) is provided on the outer wall of the outer plate (35). The outer periphery of the acting rod (37) is tangent to the outer periphery of the inner pressing plate (36). An inclined surface is formed on the outer wall of the inner pressing plate (36), and the upper end of the inclined surface extends inwardly and obliquely.

2. The fixing bracket according to claim 1, characterized in that, The connecting mechanism includes a collar (20) sleeved on the vertical rod (2). A rotating opening is formed on the circumferential side of the collar (20). A pair of lugs (21) are provided at the rotating opening. A rotating block (22) is rotatably provided at the outer end of the lug (21). An outer jacking screw rod (23) is provided on the rotating block (22). The inner end of the outer jacking screw rod (23) abuts against the outer periphery of the vertical rod (2). The collar (20) is connected to the middle ring (25) through a middle plate (24).

3. The fixing bracket according to claim 2, characterized in that, The inner end of the outer jacking screw rod (23) is in a spherical structure.

4. The fixing bracket according to claim 2, wherein, A terminal ball is provided at the outer end of the outer jacking screw rod (23).

5. The fixing bracket according to claim 1, characterized in that The inner circumference of the lower ring (27) is a conical surface.

6. The fixing bracket according to claim 1, characterized in that, The inner wall of the clamping seat (32) is in an inwardly concave arc structure.

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