Stoichiometric instrument placing frame

Abstract

The utility model relates to the technical field of stoichiometric instruments, and discloses a stoichiometric instrument placing frame which comprises a fixed base and vertical blocks fixedly installed on the two sides of the upper end of the fixed base, and second placing frames are movably installed at the upper ends of the inner walls of the vertical blocks. The spacing distance between the first placement rack and the second placement rack can be adjusted in advance according to the height of the highest test tube, an electric telescopic column is started to drive an insertion block and a clamping strip to slide in an inner cavity of a cross-shaped groove, so that the insertion block drives a connecting mechanism to carry out overall set height adjustment, and when the connecting mechanism moves, the height of the test tube is adjusted. The slender rod fixedly installed at one end of the outer wall of the connecting mechanism through the arc-shaped guide rod can move together, then the slender rod moves according to the marking line, and an operator can adjust the set height of the connecting mechanism more accurately through the arrangement of the marking line.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical metrology instruments, and particularly relates to a placement rack for chemical metrology instruments. Background Art

[0002] Chemical metrology instruments are usually one of the commonly used instruments in chemical laboratories. The setting of the instrument placement rack enables the metrology instruments to be placed on its upper end when not in use. Currently, commonly used chemical metrology instruments include burettes, acid burettes, pipettes, volumetric flasks, measuring cups, and graduated cylinders, etc., and the diameters and heights of different metrology instruments are all different.

[0003] For example, a placement rack for chemical metrology instruments with the application number CN202322429410.5 includes a base. Symmetrically and fixedly installed on the top of the base are support columns. A limiting block is movably installed on the opposite sides of the two support columns. Drawer devices are installed on both sides of the limiting block, and a fixing device is movably installed on the drawer devices. Through the structural design of installing the fixing device, when the device is in use, the chemical metrology instrument is placed in the arc-shaped plate inside the fixing ring, and under the action of the compression spring, the arc-shaped plate can clamp and fix the outer wall of the chemical metrology instrument.

[0004] When the placement rack for chemical metrology instruments proposed in the above patent is in use, since there are two layers of instrument placement racks provided at the upper end of the instrument placement rack, and the set height of the instrument placement rack is fixed, such a setting results in that when placing a large number of test tubes with relatively high heights in the experiment, they can only be uniformly placed at the upper end of the placement rack, and the placement quantity is limited, making it inconvenient to use.

[0005] Therefore, we propose a placement rack for chemical metrology instruments to solve the problems raised above. Summary of the Invention

[0006] The purpose of the utility model is to provide a placement rack for chemical metrology instruments to solve the problem raised in the above background art that since there are two layers of instrument placement racks provided at the upper end of the instrument placement rack, and the set height of the instrument placement rack is fixed, such a setting results in that when placing a large number of test tubes with relatively high heights in the experiment, they can only be uniformly placed at the upper end of the placement rack, and the placement quantity is limited, making it inconvenient to use.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A placement rack for chemical metrology instruments includes a fixed base and upright blocks fixedly installed on both sides of the upper end of the fixed base. The lower end of the inner wall of the upright block is fixedly installed with a first placement rack. The upper end of the inner wall of the upright block is movably installed with a second placement rack. Marking components are fixedly installed at one end of both the first placement rack and the second placement rack, and the marking components are adapted to write the situation of the reagent in the test tube.

[0008] The second placement rack includes a connection mechanism and a pointing mechanism fixedly installed at one end of the outer wall of the connection mechanism, and the pointing mechanism is used to assist the connection mechanism in adjusting the installation height.

[0009] Preferably, the vertical block includes a long block and a marking line engraved on one end of the outer wall of the long block.

[0010] Preferably, a cross groove is opened in the middle of the upper end of the inner wall of the long block, and an electric telescopic column is fixedly installed at the bottom of the inner cavity of the cross groove.

[0011] Preferably, square blocks are fixedly installed at both ends of the connection mechanism, an insertion block is fixedly installed at one end of the square block, and clamping bars are fixedly installed in the middle of both ends of the outer wall of the insertion block.

[0012] Preferably, the pointing mechanism includes an arc-shaped guide rod and a thin rod fixedly installed in the middle of one end of the arc-shaped guide rod.

[0013] Preferably, the marking assembly includes a long drawing board and a sliding groove opened in the middle of the upper end of the long drawing board. A right-angled board is movably installed on one side of the long drawing board. A clamping block is fixedly installed on one side of the lower end of the right-angled board, and a wiping block is fixed at one end of the inner wall of the right-angled board.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. Adjust the interval distance between the first placement rack and the second placement rack in advance according to the height of the tallest test tube. By starting the electric telescopic column to drive the insertion block and the clamping bar to slide in the inner cavity of the cross groove, the insertion block drives the connection mechanism to adjust the overall installation height, so as to facilitate the placement of taller test tubes.

[0016] 2. The operator can write the placement date of the test tube and mark reminders on the upper end of the long drawing board. By moving the right-angled board, the clamping block can be driven to slide in the inner cavity of the sliding groove, so that the wiping block fixedly installed on one side of the inner wall of the right-angled board can wipe the text on the long drawing board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is the Figure 1 enlarged view of part A of the present utility model;

[0019] Figure 3 is the three-dimensional structure schematic diagram of the second placement rack and the marking assembly of the present utility model;

[0020] Figure 4 is the Figure 3 enlarged view of part B of the present utility model.

[0021] In the figure: 1. Fixed base; 2. Upright block; 21. Long block; 22. Marking line; 23. Cross groove; 24. Electric telescopic column; 3. First placement rack; 4. Second placement rack; 41. Connection mechanism; 411. Square block; 412. Insertion block; 413. Card strip; 42. Pointing mechanism; 421. Arc guide rod; 422. Thin rod; 5. Marking component; 51. Long drawing board; 52. Sliding groove; 53. Right-angle plate; 54. Clamping block; 55. Wiping block. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1: Please refer to Figures 1 - 4 , a chemical metering instrument placement rack, including a fixed base 1 and upright blocks 2 fixedly installed on both sides of the upper end of the fixed base 1. The lower end of the inner wall of the upright block 2 is fixedly installed with a first placement rack 3, and the upper end of the inner wall of the upright block 2 is movably installed with a second placement rack 4. One end of each of the first placement rack 3 and the second placement rack 4 is fixedly installed with a marking component 5, and the marking component 5 is adapted to write the situation of the reagent in the test tube.

[0024] The second placement rack 4 includes a connection mechanism 41 and a pointing mechanism 42 fixedly installed at one end of the outer wall of the connection mechanism 41, and the pointing mechanism 42 is used to assist the connection mechanism 41 to adjust the setting height.

[0025] The upright block 2 includes a long block 21 and a marking line 22 engraved on one end of the outer wall of the long block 21, and the marking line 22 is adapted to judge the moving height of the connection mechanism 41.

[0026] A cross groove 23 is opened in the middle of the upper end of the inner wall of the long block 21, and an electric telescopic column 24 is fixedly installed at the bottom of the inner cavity of the cross groove 23.

[0027] Square blocks 411 are respectively fixedly installed at both ends of the connection mechanism 41. An insertion block 412 is fixedly installed at one end of the square block 411. Card strips 413 are fixedly installed in the middle of both ends of the outer wall of the insertion block 412. The insertion block 412 drives the card strips 413 to be movably installed in the inner cavity of the cross groove 23, and the lower end of the insertion block 412 and the upper end of the electric telescopic column 24 are fixedly installed.

[0028] The electric telescopic column 24 drives the insertion block 412 and the card strips 413 to move to set the position, so that the set position of the connection mechanism 41 changes.

[0029] The pointing mechanism 42 includes an arc-shaped guide rod 421 and a thin rod 422 fixedly installed at the middle of one end of the arc-shaped guide rod 421. One end of the arc-shaped guide rod 421 is fixedly installed at one end of the outer wall of the connecting mechanism 41 and moves along with the connecting mechanism 41 to set the position.

[0030] In this embodiment: When the operator daily uses the measuring instrument placement rack, the distance between the first placement rack 3 and the second placement rack 4 can be adjusted in advance according to the height of the tallest test tube. By starting the electric telescopic column 24 to drive the insertion block 412 and the clamping strip 413 to slide in the inner cavity of the cross-shaped groove 23, the insertion block 412 drives the connecting mechanism 41 to adjust the overall set height. When the connecting mechanism 41 moves in position, the thin rod 422 fixedly installed on the outer wall of the connecting mechanism 41 by the arc-shaped guide rod 421 will move together, so that the thin rod 422 moves relative to the marking line 22. Through the setting of the marking line 22, the operator can more accurately adjust the set height of the connecting mechanism 41.

[0031] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figure 3 , the marking component 5 includes a long drawing board 51 and a sliding groove 52 opened in the middle of the upper end of the long drawing board 51. A right-angled board 53 is movably installed on one side of the long drawing board 51. A clamping block 54 is fixedly installed on one side of the lower end of the right-angled board 53. A wiping block 55 is fixed at one end of the inner wall of the right-angled board 53. The clamping block 54 is slidably installed in the inner cavity of the sliding groove 52, and the right-angled board 53 is driven to move in position by the clamping block 54.

[0032] In this embodiment: The operator can write the placement date of the test tube on the upper end of the long drawing board 51 and mark reminders, etc. And since the long drawing board 51 is fixedly installed at one end of the connecting mechanism 41, it does not affect the taking of the test tube at the other end of the connecting mechanism 41. By moving the right-angled board 53, the clamping block 54 can be driven to slide in the inner cavity of the sliding groove 52, so that the wiping block 55 fixedly installed on one side of the inner wall of the right-angled board 53 wipes the text on the long drawing board 51.

[0033] Working principle: When the operator uses the measuring instrument placement rack in daily life, the interval distance between the first placement rack 3 and the second placement rack 4 can be adjusted in advance according to the height of the tallest test tube. By starting the electric telescopic column 24, the insertion block 412 and the clamping strip 413 are driven to slide in the inner cavity of the cross-shaped groove 23, so that the insertion block 412 drives the connecting mechanism 41 to adjust the overall set height. When the connecting mechanism 41 moves in position, the thin rod 422 fixedly installed on the outer wall of the connecting mechanism 41 by the arc-shaped guide rod 421 will move together, and then the thin rod 422 moves in position with respect to the marking line 22. Through the setting of the marking line 22, the operator can more accurately adjust the set height of the connecting mechanism 41. At the same time, the operator can write the placement date of the test tube and mark reminders on the upper end of the long drawing board 51. And since the long drawing board 51 is fixedly installed at one end of the connecting mechanism 41, it does not affect the taking of the test tube at the other end of the connecting mechanism 41. By moving the right-angled plate 53, the clamping block 54 can be driven to slide in the inner cavity of the sliding groove 52, so that the wiping block 55 fixedly installed on one side of the inner wall of the right-angled plate 53 wipes the text on the long drawing board 51.

[0034] The structures and working principles of the first placement rack and the second placement rack are the same as those of the limit block, the drawing device, the sliding groove, the slider, the gear, the first rack, the second rack, the fixing device, the vertical plate, the bottom plate, the anti-slip pad, the fixing ring, the compression spring, the arc-shaped plate, the support strip and the cross plate in the publication number CN220780412U, and will not be elaborated here.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A chemical measurement instrument placement rack, comprising a fixed base (1) and vertical blocks (2) fixedly installed on both sides of the upper end of the fixed base (1), wherein a first placement rack (3) is fixedly installed at the lower end of the inner wall of the vertical block (2), and is characterized in that: A second placement rack (4) is movably installed at the upper end of the inner wall of the vertical block (2). Marking components (5) are fixedly installed at one ends of the first placement rack (3) and the second placement rack (4) respectively, and the marking components (5) are adapted to write labels on the conditions of the reagents in the test tubes. The second placement rack (4) includes a connection mechanism (41) and a pointing mechanism (42) fixedly installed at one end of the outer wall of the connection mechanism (41), and the pointing mechanism (42) is used to assist the connection mechanism (41) in adjusting the setting height.

2. The chemical metering instrument placement rack according to claim 1, characterized in that: The vertical block (2) includes a long block (21) and a marking line (22) engraved on one end of the outer wall of the long block (21).

3. The chemical metering instrument placement rack according to claim 2, characterized in that: A cross groove (23) is formed in the middle of the upper end of the inner wall of the long block (21), and an electric telescopic column (24) is fixedly installed at the bottom of the inner cavity of the cross groove (23).

4. A chemical metering instrument placement rack according to claim 1, characterized in that: Square blocks (411) are fixedly installed at both ends of the connection mechanism (41), an insertion block (412) is fixedly installed at one end of the square block (411), and clamping bars (413) are fixedly installed in the middle of both ends of the outer wall of the insertion block (412).

5. A chemical stoichiometry instrument placement rack according to claim 1, characterized in that: The pointing mechanism (42) includes an arc-shaped guide rod (421) and a thin rod (422) fixedly installed in the middle of one end of the arc-shaped guide rod (421).

6. The chemical metering instrument placement rack according to claim 1, characterized in that: The marking component (5) includes a long drawing board (51) and a sliding groove (52) formed in the middle of the upper end of the long drawing board (51). A right-angle board (53) is movably installed on one side of the long drawing board (51), a clamping block (54) is fixedly installed on one side of the lower end of the right-angle board (53), and a wiping block (55) is fixed at one end of the inner wall of the right-angle board (53).

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