Water bath heating stand for round bottom flask

Abstract

A water bath heating rack for round bottom flask, comprising an upper horizontal plate arranged at the upper end of a water bath box, a L-shaped plate is installed at the lower end of the upper horizontal plate through screws, a rotating shaft is arranged at the lower end of the vertical section of the L-shaped plate, an arc-shaped plate is welded at the inner side end of the rotating shaft, inner extension rods are symmetrically welded on the inner wall of the arc-shaped plate, end balls are formed at the inner side end of the inner extension rods, an outer ring is arranged in the arc-shaped plate, an arc-shaped groove is arranged on the outer periphery of the outer ring, a ring groove is arranged on the outer side of the arc-shaped groove, the end balls are arranged in the arc-shaped groove, the inner extension rods are arranged in the ring groove, an inner ring is arranged on the inner periphery of the outer ring, the neck part of the round bottom flask is arranged on the inner ring, the arc-shaped plate can rotate around the rotating shaft, the outer ring can rotate around its own axis, and can also rotate around the axis of the end ball, so as to provide a fulcrum for the shaking of the round bottom flask, and the round bottom flask can avoid contacting the bottom of the placing basket during the shaking process to avoid damage to the round bottom flask.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a water bath heating rack for a round-bottom flask. Background Technology

[0002] Round-bottom flasks are commonly used reaction vessels in the preparation and testing of pharmaceuticals or chemical preparations. For example, when dissolving substances, to accelerate dissolution, round-bottom flasks are often placed in the water bath 10 of a water bath 1. The water bath 10 is equipped with a placement basket 11. In order to ensure that the liquid in the round-bottom flask is heated evenly, it needs to be shaken. In order to ensure that the liquid in the round-bottom flask is heated evenly, the liquid level in the round-bottom flask needs to be below the level of the heating water. However, in order to avoid water spillage during shaking, the amount of water in the water bath 10 is relatively small. Thus, when shaking the round-bottom flask, the bottom of the flask is easily impacted. Moreover, when the water temperature is high, it is not convenient to shake. Utility Model Content

[0003] This invention provides a water bath heating rack for round-bottom flasks to overcome the shortcomings of the prior art and solve the problem of inconvenience in shaking round-bottom flasks during dissolution, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: A water bath heating rack for a round-bottom flask includes an upper horizontal plate located at the top of the water bath. An L-shaped plate is screwed to the lower end of the upper horizontal plate. A rotating shaft is rotatably mounted on the lower vertical section of the L-shaped plate. An arc-shaped plate is welded to the inner end of the rotating shaft. Inner extension rods are symmetrically welded to the inner wall of the arc-shaped plate. An end ball is formed on the inner end of the inner extension rod. An outer ring is provided inside the arc-shaped plate. An arc-shaped groove is formed on the outer periphery of the outer ring. An annular groove is formed on the outer side of the arc-shaped groove. The end ball is located in the arc-shaped groove. The inner extension rod passes through the annular groove. An inner ring is provided on the inner periphery of the outer ring. The neck of the round-bottom flask passes through the inner ring. The arc-shaped plate can rotate around the rotating shaft, and the outer ring can rotate around its own axis and also around the axis of the end ball. This provides a fulcrum for shaking the round-bottom flask and prevents the round-bottom flask from contacting the bottom of the placement basket during shaking, thus avoiding damage to the round-bottom flask.

[0005] Furthermore, an end nut is threadedly connected to the outer end of the shaft. The end nut is located on the outer side of the L-shaped plate and is used to limit the movement of the shaft and the L-shaped plate.

[0006] Furthermore, multiple pairs of guide holes are arranged in a circumferential array on the inner ring. Connecting screws are movable within the guide holes. The upper end of each pair of connecting screws is threadedly connected to a convex plate. An inner pressure plate is formed on the convex plate. The outer periphery of the inner pressure plate has a conical wall, and the upper end of the outer periphery of the inner pressure plate is a small end. A constraint ring is fitted on the outer periphery of the inner pressure plate. The inner periphery of the constraint ring has a conical structure, and the inner periphery of the constraint ring abuts against the outer periphery of the inner pressure plate. Through the constraint ring and the movable inner pressure plate, when the constraint ring moves downward, the inner pressure plate can move inward, so that the inner wall of the inner pressure plate acts on the neck of the round-bottom flask, thereby achieving the purpose of fixing the neck of the round-bottom flask, so as to prevent the bottom of the round-bottom flask from colliding with the bottom of the placement basket and causing damage to the round-bottom flask. It also reduces the difficulty of shaking the round-bottom flask, which only requires holding the upper end of the round-bottom flask and then shaking it.

[0007] Furthermore, the inner wall of the inner pressure plate is provided with a soft buffer layer to prevent damage to the round-bottom flask.

[0008] Furthermore, vertical plates are formed by bending downwards at both ends of the upper horizontal plate. The vertical plates are located on both sides of the water bath. An inner plate is welded to the inner wall of the vertical plate. The inner plate is placed at the top of the water bath. The vertical plates constrain both ends of the upper horizontal plate. The inner plate can prevent the lower wall of the upper horizontal plate from contacting the upper end of the basket.

[0009] Furthermore, one of the vertical plates is connected to an inner top screw via a thread. The outer end of the inner top screw is provided with a rotating cap, and the inner end of the inner top screw is provided with an abutment plate. The inner wall of the abutment plate is tightly attached to the outer wall of the water bath. When the inner top screw is rotated, it will drive the abutment plate to be tightly attached to the outer wall of the water bath, thereby further fixing and constraining the vertical plate and the abutment plate to the upper horizontal plate.

[0010] The advantages of the above technical solution are: This invention provides a fulcrum for the round-bottom flask when it is shaken, thus facilitating the shaking action. During the shaking process, the flask is limited to prevent its bottom from being impacted, and the height of the bottom of the flask can be adjusted adaptively. Attached Figure Description

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0012] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0013] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0014] Figure 3 A magnified view of point A is shown.

[0015] Figure 4 A three-dimensional structure of one embodiment is shown. Figure 3 . Detailed Implementation

[0016] like Figures 1-4 As shown, a water bath heating rack for a round-bottom flask includes an upper horizontal plate 3 located at the upper end of a water bath 1. An L-shaped plate 5 is screwed onto the lower end of the upper horizontal plate 3. A rotating shaft 50 is rotatably mounted on the lower end of the vertical section of the L-shaped plate 5. An end nut 51 is threaded onto the outer end of the rotating shaft 50 and is located on the outer side of the L-shaped plate 5. An arc-shaped plate 52 is welded to the inner end of the rotating shaft 50. An inner extension rod 53 is symmetrically welded to the inner wall of the arc-shaped plate 52. An end ball 54 is formed on the inner end of the inner extension rod 53. An outer ring 55 is provided inside the arc-shaped plate 52. An arc-shaped groove 56 is formed on the outer periphery of the outer ring 55. An annular groove 57 is formed on the outer side of the arc-shaped groove 56. The end ball 54 is located inside the arc-shaped groove 56. The inner extension rod 53 passes through the annular groove 57. An inner ring 58 is provided on the inner periphery of the outer ring 55. The neck of the round-bottom flask passes through the inner ring 58.

[0017] In this embodiment, when shaking the round-bottom flask, the operator places the round-bottom flask on the inner ring 58 from bottom to top, then holds the upper end of the round-bottom flask and shakes it. During the shaking process, the arc plate 52 rotates around the pivot 50, while the inner ring 58 rotates around the axis of the end ball 54 and around its axis. This allows the round-bottom flask to be shaken from multiple angles and directions to improve the uniformity of heating.

[0018] In some embodiments, a plurality of pairs of guide holes 59 are arranged in a circumferential array on the inner ring 58. Connecting screws 60 are movably disposed in the guide holes 59. The upper end of each pair of connecting screws 60 is threadedly connected to a protruding plate 61. An inner pressure plate 62 is formed on the protruding plate 61. A soft buffer layer is provided on the inner wall of the inner pressure plate 62. The outer periphery of the inner pressure plate 62 is tapered. The upper end of the outer periphery of the inner pressure plate 62 is a small end. A constraint ring 63 is sleeved on the outer periphery of the inner pressure plate 62. The inner periphery of the constraint ring 63 is tapered, and the inner periphery of the constraint ring 63 abuts against the outer periphery of the inner pressure plate 62.

[0019] In this embodiment, when fixing the round-bottom flask, the round-bottom flask is first inserted between the inner pressure plates 62 from bottom to top, and then the constraint ring 63 is sleeved on the inner pressure plate 62. By moving the constraint ring 63 downward, the inner wall of the inner pressure plate 62 is made to fit tightly against the neck of the round-bottom flask. This can further improve the fixing effect of the round-bottom flask and prevent the round-bottom flask from colliding with the bottom of the placement basket.

[0020] In some embodiments, vertical plates 30 are formed by bending downwards at both ends of the upper horizontal plate 3. The vertical plates 30 are located on both sides of the water bath 1. An inner plate 31 is welded to the inner wall of the vertical plate 30 and is placed at the upper end of the water bath 1. An inner top screw 4 is threadedly connected to one of the vertical plates 30. A rotating cap 40 is provided at the outer end of the inner top screw 4, and an abutment plate 41 is provided at the inner end of the inner top screw 4. The inner wall of the abutment plate 41 is tightly attached to the outer wall of the water bath 1. In this embodiment, when fixing the upper horizontal plate 3, the operator rotates the inner top screw 4 to make the inner wall of the abutment plate 41 tightly attached to the outer wall of the water bath 1, and to make the other end of the vertical plate 30 also tightly attached to the water bath 1, thereby preventing the upper horizontal plate 3 from moving during shaking.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A water bath heating rack for a round-bottom flask, characterized in that, The upper horizontal plate (3) is located at the top of the water bath (1). An L-shaped plate (5) is installed at the bottom of the upper horizontal plate (3) by screws. A rotating shaft (50) is provided at the bottom of the vertical section of the L-shaped plate (5). An arc plate (52) is welded to the inner end of the rotating shaft (50). An inner extension rod (53) is symmetrically welded to the inner wall of the arc plate (52). An end ball (54) is formed on the inner end of the inner extension rod (53). An outer ring (55) is provided in the arc plate (52). An arc groove (56) is opened on the outer periphery of the outer ring (55). An annular groove (57) is opened on the outer side of the arc groove (56). The end ball (54) is located in the arc groove (56). The inner extension rod (53) passes through the annular groove (57). An inner ring (58) is provided on the inner periphery of the outer ring (55). The neck of the round-bottom flask passes through the inner ring (58).

2. The water bath heating rack for the round-bottom flask according to claim 1, characterized in that, The outer end of the rotating shaft (50) is connected to an end nut (51) by a thread, and the end nut (51) is located on the outside of the L-shaped plate (5).

3. The water bath heating rack for the round-bottom flask according to claim 1, characterized in that, Multiple pairs of guide holes (59) are arranged in a circular array on the inner ring (58). Connecting screws (60) are moved inside the guide holes (59). The upper end of each pair of connecting screws (60) is connected to a convex plate (61) by a thread. An inner pressure plate (62) is formed on the convex plate (61). The outer periphery of the inner pressure plate (62) is a conical wall. The upper end of the outer periphery of the inner pressure plate (62) is a small end. A constraint ring (63) is sleeved on the outer periphery of the inner pressure plate (62). The inner periphery of the constraint ring (63) is a conical structure, and the inner periphery of the constraint ring (63) abuts against the outer periphery of the inner pressure plate (62).

4. The water bath heating rack for the round-bottom flask according to claim 3, characterized in that, The inner wall of the inner pressure plate (62) is provided with a soft buffer layer.

5. The water bath heating rack for the round-bottom flask according to claim 1, characterized in that, The upper horizontal plate (3) has vertical plates (30) formed by bending downwards at both ends. The vertical plates (30) are located on both sides of the water bath (1). The inner wall of the vertical plate (30) is welded with an inner plate (31), which is placed at the upper end of the water bath (1).

6. The water bath heating rack for the round-bottom flask according to claim 5, characterized in that, One of the vertical plates (30) is connected to an inner top screw (4) by a thread. The outer end of the inner top screw (4) is provided with a rotating cap (40), and the inner end of the inner top screw (4) is provided with an abutment plate (41). The inner wall of the abutment plate (41) is tightly attached to the outer wall of the water bath (1).

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