Classified combination variable diameter beaker rack for heating glassware in water bath

Abstract

The application is a grading combination variable diameter beaker rack for heating glassware in a water bath, which belongs to the grading combination variable diameter beaker rack for protecting glassware from swinging. The rectangular frame of the beaker rack has two lateral partition bars and front and back frame bars. Each partition bar is provided with vertical positioning holes from the upper surface to the lower surface, and the lateral surface of the partition bar is provided with a sliding groove. The frame bar is provided with a frame bar threaded horizontal hole. The lateral surface of the sliding block in the frame is provided with a horizontal hole. A rotating rod is arranged in the frame bar threaded horizontal hole and the horizontal hole. The spherical end of the rotating rod is connected with a clamping device. The spherical segment shaped universal shell of the clamping device is fixedly connected with the back surface of the slot of the arc-shaped short tube. The flexible rubber strip is embedded in the slot of the arc-shaped short tube. The part of the flexible rubber strip outside the slot is used for flexible contact with the glassware. The problem of damaging the glassware due to the lack of a device for fixing the glassware in the water bath is solved. The problem of clamping and fixing various glassware with large diameter changes in the water bath is also solved.

Description

TECHNICAL FIELD

[0001] The present invention belongs to the technical field of chemical laboratory utensils, in particular to a grading combination variable diameter beaker rack capable of protecting glassware from swinging when heated by a water bath. BACKGROUND

[0002] Nowadays, when heating liquid in glassware (such as beakers or flasks) by a water bath, the glassware is easily swung due to the water buoyancy in the water bath, often resulting in damage to the glassware. The reason is that the water buoyancy in the water bath makes the floating effect of the glassware in the water different due to the different amount of liquid in the glassware, and the multiple holes in the cover on the water bath can only put in the glassware, but cannot fix the glassware; thus, when the water temperature reaches 100 degrees Celsius, the flow of water makes the floating glassware randomly float in position, damaging the glassware. Therefore, it is very important to set a simple, variable diameter, and fixed position problem solving device for different diameter glassware (such as beakers) in the water bath. SUMMARY

[0003] The purpose of the present invention is to provide a simple, variable diameter, and large and small wide-mouth beaker and other glassware that can be fixed in the water bath for heating.

[0004] The structure of the present invention is as follows:

[0005] The grading combination variable diameter beaker rack for heating glassware in a water bath comprises a multi-frame beaker rack 2 with multiple rectangular frames 1 arranged side by side and connected as one, characterized in that: the rectangular frame 1 has a rectangular shape surrounded by horizontal partition bars 3 on the left and right sides and frame bars 6 on the front and back sides, each horizontal partition bar 3 is provided with vertical positioning holes 4 from the top to the bottom, and the side of the horizontal partition bar 3 is provided with a sliding groove 5, and one or two frame bars 6 are provided with frame bar threaded holes 7 in the horizontal direction.

[0006] In the frame of the rectangular frame 1, a sliding block 8 is arranged between the two horizontal partition bars 3, the two ends of the sliding block 8 are respectively embedded and clamped in the sliding grooves 5 of the two horizontal partition bars 3, and the part of the sliding block 8 clamped in the sliding grooves 5 is provided with a vertical insertion hole 9; the side of the sliding block 8 is provided with one or more sliding block threaded holes 10.

[0007] In the frame of the rectangular frame 1, a spherical end threaded rotating rod 11 is arranged in the frame bar threaded hole 7 and the sliding block threaded hole 10, the spherical end of the spherical end threaded rotating rod 11 is connected with a universal flexible clamping device 12, and the universal flexible clamping device 12 of the frame bar threaded hole 7 is opposite to the universal flexible clamping device 12 of the sliding block threaded hole 10.

[0008] The structure of the universal flexible clamping device 12 includes a spherical segment universal shell 13, a slotted arc-shaped short tube 14, and a flexible rubber strip 15. The spherical segment universal shell 13 is fixedly connected to the back of the slotted arc-shaped short tube 14. The flexible rubber strip 15 is partially embedded in the slot of the slotted arc-shaped short tube 14 and partially left outside the slot of the slotted arc-shaped short tube 14. The part of the flexible rubber strip 15 outside the slot is used for flexible contact with the glassware.

[0009] The universal flexible clamping device 12 connected to the frame strip 6 and the sliding block 8 directly contacts the glassware and clamps the glassware in the water bath pot for heating, which can avoid the damage of the glassware floating in the water bath pot. The diameter of the glassware clamped by the universal flexible clamping device 12 can be greatly changed, and the diameter of the glassware can be from 1 cm to 20 cm.

[0010] To clamp the glassware with a diameter of 20 cm, if only the spherical head threaded rotating rod 11 is used to adjust the clamping distance, the spherical head threaded rotating rod 11 will be more than 10 cm out of the frame strip 6, which will cause damage to other glassware in the water bath pot. In order to prevent the spherical head threaded rotating rod 11 from extending out of the frame strip 6, the sliding block 8 is used to adjust the length of the spherical head threaded rotating rod 11. The sliding block 8 slides in the rectangular frame 1 to adjust the length on a large scale, which solves the problem of the spherical head threaded rotating rod 11 extending out of the frame strip 6. The spherical head threaded rotating rod 11 rotates in the sliding block screw horizontal hole 10 of the sliding block 8 to adjust on a small scale, which achieves the purpose of clamping and fixing the glassware. Therefore, the variable diameter beaker rack of the present application is a device that adjusts the clamping diameter by combining large-scale adjustment of the sliding block 8 and small-scale fine adjustment of the spherical head threaded rotating rod 11 on the sliding block 8. The large-diameter glassware is a commonly used wide-mouth beaker.

[0011] To solve the problem of fixing the small-diameter neck of the flask, the technical solution is that the sliding block 8 is provided with three sliding block screw horizontal holes 10 side by side with intervals. Each sliding block screw horizontal hole 10 is provided with a set of spherical head threaded rotating rods 11 and universal flexible clamping devices 12. The arc radius of the slotted arc-shaped short tube 14 of the universal flexible clamping device 12 in the middle sliding block screw horizontal hole 10 is smaller than that of the other two slotted arc-shaped short tubes 14. The slotted arc-shaped short tube 14 of the middle sliding block screw horizontal hole 10 only uses the two ends of the tube to embed the flexible rubber strip 15.

[0012] To clamp a 1cm diameter glassware, the slider 8 is slid to a position where the flexible rubber strips 15 of the two universal flexible clamping devices 12 are close to each other. Since the diameter varies greatly from 1cm to 20cm, the arc radius of the arc-shaped short tube 14 of the slotted opening of the universal flexible clamping device 12 of the middle slider threaded horizontal hole 10 is smaller than that of the other two slotted openings. In particular, the arc-shaped short tube 14 of the slotted opening of the middle slider threaded horizontal hole 10 is only inserted into the flexible rubber strips 15 at both ends of the tube, which can have longer flexible rubber strips 15 surrounding the 1cm diameter glassware, clamping without crushing the 1cm diameter glassware. Small diameter glassware is commonly used in narrow-necked flasks or test tubes.

[0013] The advantages of the present application are: with the simplest structure, it can clamp and fix various glassware with a large diameter variation from 1cm to 20cm for heating in a water bath, and the glassware will not float and be damaged. When clamping and fixing the largest diameter glassware, the outer surface of the frame body of the variable diameter beaker rack of the present application does not have components such as threaded rotating rods extending out of the beaker rack for changing the clamping radius, i.e. the variable diameter beaker rack of the present application does not have any extending components on the outside of the beaker rack affecting or damaging other glassware in the water bath in any use state. It solves the problem of damaging glassware due to the flow and vibration of boiling water when there is no device to fix the glassware for heating in the water bath, and also solves the problem of clamping and fixing various glassware with a large diameter variation from 1cm to 20cm in the water bath with the same beaker rack. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the present application, in which a plurality of rectangular frames are connected in parallel to form a multi-frame beaker rack, and one of the rectangular frames clamps and fixes a large diameter glassware for heating in a water bath;

[0015] Figure 2 is a schematic diagram of the three-dimensional structure of the horizontal partition strip, slider, spherical end threaded rotating rod and flexible clamping device;

[0016] Figure 3 is a schematic diagram of the cross-sectional structure of the variable diameter beaker rack of the present application when clamping a large diameter glassware, i.e. a large beaker;

[0017] Figure 4 is a schematic diagram of the cross-sectional structure of the variable diameter beaker rack of the present application when clamping a small diameter glassware, i.e. a narrow-necked flask;

[0018] Figure 5 is a schematic diagram of the universal rotation connection cross-section of the spherical end threaded rotating rod and the flexible clamping device.

[0019] Figure 1 is a rectangular frame, 2 is a multi-frame beaker rack, 3 is a horizontal partition, 4 is a vertical positioning hole, 5 is a sliding groove, 6 is a frame strip, 7 is a frame strip threaded horizontal hole, 8 is a sliding block, 9 is a vertical insertion hole, 10 is a sliding block threaded horizontal hole, 11 is a spherical end threaded rotary rod, 12 is a flexible clamping device, 13 is a spherical segment-shaped universal shell, 14 is a slotted arc-shaped short tube, 15 is a flexible rubber strip. DETAILED DESCRIPTION

[0020] Example 1, hierarchical combination variable diameter beaker rack for heating glassware in a water bath

[0021] As Figure 1 , 2 , 3, 4, 5,

[0022] A multi-frame beaker rack 2 is made of multiple rectangular frames 1 arranged side by side and connected together, that is, one multi-frame beaker rack 2 has multiple rectangular frames 1 arranged side by side and connected together, and the four corners of the multi-frame beaker rack 2 have four feet for placing in a water bath to support the multi-frame beaker rack 2 away from the bottom of the water bath.

[0023] The rectangular frame 1 has horizontal partitions 3 on the left and right sides and frame strips 6 on the front and back sides to form a rectangular shape, and vertical positioning holes 4 are provided on each horizontal partition 3 from top to bottom, and sliding grooves 5 are provided on the side of each horizontal partition 3, and one or two frame strips 6 are provided with frame strip threaded horizontal holes 7.

[0024] The vertical positioning holes 4 are used to insert the sliding block 8 in a bolt manner, and the sliding grooves 5 are used to slide the sliding block 8 within the specified range of the sliding grooves, and the size required for clamping the glassware is adjusted.

[0025] In the frame of the rectangular frame 1, a sliding block 8 is arranged between the two horizontal partitions 3, the two ends of the sliding block 8 are respectively embedded and clamped in the sliding grooves 5 of the two horizontal partitions 3, and vertical insertion holes 9 are provided at the positions of the sliding block 8 clamped in the sliding grooves 5; the side of the sliding block 8 is provided with three sliding block threaded horizontal holes 10.

[0026] The sliding block 8 slides between the two horizontal partitions 3 of the rectangular frame 1, changes the distance between the sliding block 8 and the opposite frame strip 6, and thus changes the size required for clamping the glassware.

[0027] In the frame of the rectangular frame 1, a spherical end threaded rotary rod 11 is arranged in the frame strip threaded horizontal hole 7 and each sliding block threaded horizontal hole 10, the spherical end of the spherical end threaded rotary rod 11 is connected with a universal flexible clamping device 12, and the universal flexible clamping device 12 of the frame strip threaded horizontal hole 7 is opposite to the universal flexible clamping device 12 of the sliding block threaded horizontal hole 10.

[0028] The spherical end threaded rotating rod 11 and the universal flexible clamping device 12 are directly in contact with the glassware, and the components for fine-tuning the clamping force, and the fine-tuning method is to rotate the spherical end threaded rotating rod 11, so that the spherical end threaded rotating rod 11 extends or retracts in the sliding block 8.

[0029] The structure of the universal flexible clamping device 12: including a spherical segment universal shell 13, a slotted arc-shaped short tube 14, and a flexible rubber strip 15, the spherical segment universal shell 13 is fixedly connected to the back of the slot of the slotted arc-shaped short tube 14, the flexible rubber strip 15 is partially embedded in the slot of the slotted arc-shaped short tube 14, and partially remains outside the slot of the slotted arc-shaped short tube 14, and the part of the flexible rubber strip 15 outside the slot is used for flexible contact with the glassware.

[0030] The flexible rubber strip 15 is used to contact the glassware, which can flexibly clamp the glassware and prevent the glassware from swinging in the water bath.

[0031] The sliding block 8 is provided with three spaced-apart sliding block threaded horizontal holes 10 on the side, each of which is provided with a set of spherical end threaded rotating rods 11 and universal flexible clamping devices 12, the arc radius of the slotted arc-shaped short tube 14 of the universal flexible clamping device 12 of the middle sliding block threaded horizontal hole 10 is smaller than that of the other two slotted arc-shaped short tubes 14; the slotted arc-shaped short tube 14 of the middle sliding block threaded horizontal hole 10 is only embedded in the flexible rubber strip 15 at both ends of the tube.

[0032] The arc-shaped short tube 14 of the universal flexible clamping device 12 on the spherical end threaded rotating rod 11 threaded connected to the middle sliding block threaded horizontal hole 10 has a small arc radius feature, which is used to clamp a flask with a diameter of 1-3 cm.

Claims

1. A multi-stage combined variable diameter beaker rack for heating glassware in a water bath, comprising a multi-frame beaker rack (2) with a plurality of rectangular frames (1) juxtaposed and integrated into a whole, characterized in that: The rectangular frame (1) has two lateral vertical partitions (3) and front and back frame strips (6) to form a rectangular shape, each vertical partition (3) has vertical positioning holes (4) from top to bottom, and the lateral surface of the vertical partition (3) has a sliding slot (5), and one or two frame strips (6) have frame strip threaded holes (7) in the lateral direction; In the frame of the rectangular frame (1), a sliding block (8) is arranged between the two vertical partitions (3), the two ends of the sliding block (8) are respectively embedded in the sliding slots (5) of the two vertical partitions (3), and the part of the sliding block (8) embedded in the sliding slots (5) is provided with vertical insertion holes (9); The lateral surface of the sliding block (8) is provided with three spaced apart sliding block threaded holes (10), each sliding block threaded hole (10) is provided with a group of spherical head threaded rotating rods (11) and universal flexible clamping devices (12), the arc-shaped radius of the arc-shaped short tube (14) of the slot opening of the universal flexible clamping device (12) of the middle sliding block threaded hole (10) is smaller than that of the arc-shaped short tube (14) of the other two slot openings; the arc-shaped short tube (14) of the slot opening of the middle sliding block threaded hole (10) is only embedded with flexible rubber strips (15) at both ends of the tube; In the frame of the rectangular frame (1), the frame strip threaded holes (7) are provided with spherical head threaded rotating rods (11), the spherical head of the spherical head threaded rotating rod (11) is connected with a universal flexible clamping device (12), and the universal flexible clamping device (12) of the frame strip threaded hole (7) is opposite to the universal flexible clamping device (12) of the sliding block threaded hole (10); The structure of the universal flexible clamping device (12) comprises a spherical segment-shaped universal shell (13), an arc-shaped short tube (14) with a slot opening, and a flexible rubber strip (15), the spherical segment-shaped universal shell (13) is fixedly connected to the back of the slot opening of the arc-shaped short tube (14), the flexible rubber strip (15) is partially embedded in the slot opening of the arc-shaped short tube (14) and partially left outside the slot opening of the arc-shaped short tube (14), and the part of the flexible rubber strip (15) outside the slot opening is used for flexible contact with the glassware.

Images