Device for quantitatively adding solution

Abstract

The utility model belongs to the technical field of experimental equipment, and discloses a quantitative solution adding device which comprises a base, a vertical rod fixed to the upper surface of the base, a bottom plate arranged on the vertical rod in a sliding mode, a locking switch arranged at the joint of the bottom plate and the vertical rod and a liquid storage bottle arranged on the bottom plate. Two opposite fixing plates are fixed to the middle of the bottom face of the bottom plate, a rotating block is rotationally arranged between the two fixing plates jointly, the lower end of the rotating block is open, and a supporting assembly used for supporting the bottom plate is arranged on the rotating block. The device has the effect of reducing the difficulty of adjusting the height of the liquid storage bottle by a worker.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field, especially a device of quantitative solution addition. BACKGROUND

[0002] When carrying out experiments in the laboratory, in order to obtain experimental data of experimental materials in different reagents or environments, different experiments need to be carried out on the experimental materials; in the process of the experiment, in order to facilitate calculation, the amount of reagent needs to be accurate, when sampling general solution, the method adopted at present generally adopts overtake sample, then gradually adds into the test tube to weigh, then pours the excess sample back into the container; however, when sampling strong acid or corrosive solution, if the pouring process is not operated well, the excess sample is easy to flow out, causing damage to experimental equipment, if the strong acid or corrosive solution contacts the human body, it will cause harm to the human body and cause industrial injury accidents.

[0003] A device for quantitative addition of strong acid solution is disclosed in Chinese utility model patent No. CN220900451U, which comprises a support, a liquid storage bottle, a bottle plug, a weighing sensor, a control panel and a test tube, the liquid storage bottle is placed on the support, a bottle plug is installed on the bottle mouth of the liquid storage bottle, a gas inlet pipe is vertically arranged in the middle of the bottle plug, the lower end of the gas inlet pipe is connected with the inside of the liquid storage bottle, and the upper end of the gas inlet pipe is connected with the outside; the lower end of the liquid storage bottle is provided with a liquid outlet pipe, the left end of the liquid outlet pipe is connected with the inside of the liquid storage bottle, the lower end of the liquid outlet pipe is open, and an electromagnetic valve B is arranged on the liquid outlet pipe; the test tube is located below the open end of the liquid outlet pipe, the lower end of the test tube is placed on the weighing sensor, and the weighing sensor is placed on the support; the device has simple structure and convenient operation, can quickly and accurately sample liquid, and can effectively prevent the sample from flowing out when sampling strong acid or corrosive solution, and prevent accidents from happening.

[0004] According to the related technology in the above, the inventors believe that the following defects exist: the above device adds solution to the test tube through the liquid outlet pipe, and the worker needs to place the liquid storage bottle on the bottom plate during use, and adjusts the height of the liquid storage bottle through the bottom plate. In order to reduce the probability of falling of the liquid storage bottle, the worker needs to separate the liquid storage bottle from the bottom plate every time the height of the liquid outlet pipe is adjusted, which is relatively complex to operate and has poor use experience. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides a device for quantitative addition of solution.

[0006] The technical scheme of the above technical purpose is realized by the following technical scheme: a device for quantitatively adding solution, comprising a base, a vertical rod fixed on the upper surface of the base, a bottom plate slidingly arranged on the vertical rod, a locking switch arranged at the connecting position of the bottom plate and the vertical rod, and a liquid storage bottle arranged on the bottom plate, two opposite fixed plates are fixed on the middle part of the bottom surface of the bottom plate, a rotating block is rotatably arranged between the two fixed plates, the lower end of the rotating block is open, and a supporting assembly for supporting the bottom plate is arranged on the rotating block.

[0007] When the staff needs to quantitatively add solution into the test tube, the staff needs to place the test tube on the weighing sensor on the base, and make the opening of the test tube located directly below the outlet of the liquid outlet pipe of the liquid storage bottle, so that the test tube can be kept stable. Then, the staff needs to open the electromagnetic valve A and the electromagnetic valve B on the liquid storage bottle, so that the solution can flow out from the outlet of the liquid outlet pipe under the action of atmospheric pressure, and finally flow into the test tube. When the liquid in the test tube reaches the set value, the weighing sensor sends a signal, and the control system closes the electromagnetic valve A and the electromagnetic valve B, and finally completes the sampling. Then, when the staff needs to add solution to test tubes of different specifications, the staff needs to adjust the height of the liquid storage bottle. At this time, the staff needs to rotate the threaded rod and adjust the length of the telescopic rod to make the telescopic rod abut against the upper surface of the base, so that the supporting assembly can support the bottom plate. At this time, the staff only needs to twist the locking switch and rotate the threaded rod, so as to adjust the height of the liquid storage bottle, thereby reducing the difficulty of the staff in adjusting the height of the liquid storage bottle, without the need to remove the liquid storage bottle, thereby improving the use experience of the staff.

[0008] Further, the supporting assembly comprises a threaded rod rotatably connected with the lower end of the rotating block, and a telescopic rod threadedly connected with the lower end of the threaded rod.

[0009] Further, the telescopic rod comprises a sleeve threadedly connected with the lower end of the threaded rod, a sleeve rod slidingly connected with the lower end of the sleeve, a fixing bolt threadedly connected with the lower end of the side wall of the sleeve, a magnet block fixed on the side wall of the sleeve, and an iron sheet embedded in the bottom surface of the bottom plate.

[0010] When the staff needs to adjust the height of the liquid storage bottle, the staff only needs to insert the upper end of the threaded rod into the lower end of the rotating block and rotate the threaded rod, so that the telescopic rod rotates with the rotating block.

[0011] Further, the bottom surface of the sleeve rod is provided with a sliding groove, and a sliding rod is slidably arranged in the sliding groove.

[0012] Further, a driving groove is formed through the inner wall of the sliding groove, a driving rod is slidably arranged in the driving groove, and the driving rod and the sliding rod are fixed to each other.

[0013] Further, a compression spring is fixed to the upper surface of the sliding rod, and the other end of the compression spring is fixed to the inner top wall of the sliding groove.

[0014] Further, the upper surface of the base is provided with a limiting hole matched with the sliding rod.

[0015] By adopting the above technical scheme, when the staff needs to support the base by the supporting assembly, the staff needs to pull the driving rod upward, so that the sliding rod moves upward and completely moves into the sliding groove. Then, the staff needs to rotate the sleeve rod downward, so that the sleeve rod abuts against the upper surface of the base. At this time, the staff only needs to loosen the driving rod, so that the sliding rod moves downward under the action of the compression spring, so that the sliding rod is connected with the limiting hole, and the sleeve rod is kept stable.

[0016] Further, the upper end of the threaded rod is fixed with a handle for reducing the difficulty of rotating the threaded rod by the staff.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. In this application, when a worker needs to add a quantitative amount of solution to a test tube, the worker must place the test tube on the weighing sensor on the base, ensuring the opening of the test tube is directly below the outlet of the liquid outlet tube of the storage bottle, thus stabilizing the test tube. Then, the worker needs to open solenoid valves A and B on the storage bottle, allowing the solution to flow out from the outlet tube under atmospheric pressure and ultimately into the test tube. When the liquid level in the test tube reaches the set value, the weighing sensor sends a signal, causing the control system to close solenoid valves A and B, ultimately completing the sampling. Subsequently, when the worker needs to add solution to test tubes of different sizes, the worker needs to adjust the height of the storage bottle. At this time, the worker needs to rotate the threaded rod and adjust the length of the telescopic rod so that the telescopic rod presses against the upper surface of the base, allowing the support assembly to support the base plate. The worker only needs to turn the locking switch and rotate the threaded rod to adjust the height of the storage bottle, thus reducing the difficulty of adjusting the height of the storage bottle without removing it, thereby improving the worker's user experience.

[0019] 2. In this application, when the operator needs to adjust the height of the liquid storage bottle, the operator only needs to insert the upper end of the threaded rod into the lower end of the rotating block and rotate the threaded rod to make the telescopic rod rotate with the rotating block. Subsequently, when the axis of the sleeve rod and the sleeve is perpendicular to the base plate, the operator only needs to loosen the fixing bolt and pull the sleeve rod to make the sleeve rod press against the upper surface of the base. Further, the operator only needs to tighten the fixing bolt to fix the sleeve rod. At this time, the operator only needs to rotate the threaded rod to make the threaded rod move up and down, thereby moving the fixing plate and the base plate up and down, thus reducing the difficulty for the operator to adjust the height of the liquid storage bottle. When the operator does not need to use the sleeve rod, the operator only needs to move the sleeve rod completely into the sleeve and rotate the sleeve to make the magnet on the sleeve attract the iron piece, thereby keeping the sleeve stable.

[0020] 3. In this application, when the worker needs to support the base plate with the support assembly, the worker needs to pull the drive rod upward, which will move the sliding rod upward and completely into the sliding groove. Subsequently, the worker needs to rotate the sleeve rod downward, which will make the sleeve rod press against the upper surface of the base. At this time, the worker only needs to release the drive rod, which will allow the sliding rod to move downward under the action of the compression spring, thereby connecting the sliding rod with the limiting hole and thus keeping the sleeve rod stable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the limiting hole and its connection structure according to an embodiment of the present utility model;

[0023] Figure 3 is a support assembly and a connecting structure thereof according to an embodiment of the present application;

[0024] Figure 4 is a driving slot and a connecting structure thereof according to an embodiment of the present application;

[0025] Figure 5 is a driving rod and a connecting structure thereof according to an embodiment of the present application.

[0026] In the figure: 1, base; 11, vertical rod; 2, bottom plate; 21, locking switch; 3, liquid storage bottle; 31, fixed plate; 4, rotating block; 5, support assembly; 51, threaded rod; 6, telescopic rod; 61, sleeve; 62, sleeve rod; 63, fixed bolt; 64, magnet block; 65, iron sheet; 7, sliding slot; 71, sliding rod; 72, driving slot; 73, driving rod; 8, compression spring; 81, limiting hole; 9, handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative labor on the basis of the embodiments in the present application shall fall within the scope of protection of the present application.

[0028] As shown in Figures 1-5 , the present application discloses a device for quantitatively adding solution, which comprises a base 1, a vertical rod 11, a bottom plate 2, a locking switch 21, a liquid storage bottle 3, a fixed plate 31, a rotating block 4, a support assembly 5, a sliding rod 71, a compression spring 8 and a handle 9. The vertical rod 11 is fixed on the upper surface of the base 1, the bottom plate 2 is a rectangular plate structure, and the bottom plate 2 is slidingly arranged on the vertical rod 11. The locking switch 21 is arranged at the connection between the bottom plate 2 and the vertical rod 11, the liquid storage bottle 3 is arranged on the bottom plate 2 and is used for storing solution. The fixed plate 31 is a rectangular plate structure, and the fixed plate 31 is provided with two fixed plate structures symmetrically arranged on the bottom surface of the middle part of the bottom plate 2. The rotating block 4 is a block structure with an open lower end, and the rotating block 4 is jointly rotatably arranged between the two fixed plates 31.

[0029] The support assembly 5 is arranged on the rotating block 4 and is used for supporting the bottom plate 2, and the support assembly 5 comprises a threaded rod 51 and a telescopic rod 6.

[0030] The telescopic rod 6 is threadedly connected with the lower end of the threaded rod 51, and comprises a sleeve 61, a sleeve rod 62, a fixing bolt 63, a magnet block 64 and an iron sheet 65. The threaded rod 51 is rotatably connected with the lower end of the rotating block 4. The sleeve 61 is in a cylindrical structure with an open lower end, and is threadedly connected with the lower end of the threaded rod 51. The sleeve rod 62 is in a round rod structure, and is slidably connected with the lower end of the sleeve 61. The fixing bolt 63 is threadedly connected with the lower end of the side wall of the sleeve 61. The magnet block 64 is in a block structure, and is fixed on the side wall of the sleeve 61. The iron sheet 65 is in a sheet structure, and is embedded on the bottom surface of the bottom plate 2.

[0031] When the staff needs to adjust the height of the liquid storage bottle 3, the staff only needs to insert the upper end of the threaded rod 51 into the lower end of the rotating block 4, and rotate the threaded rod 51, so that the telescopic rod 6 rotates with the rotating block 4. Then, when the axis of the sleeve rod 62 and the sleeve 61 is perpendicular to the bottom plate 2, the staff only needs to loosen the fixing bolt 63 and pull the sleeve rod 62, so that the sleeve rod 62 abuts against the upper surface of the base 1. Further, the staff only needs to rotate the fixing bolt 63, so that the fixing bolt 63 fixes the sleeve rod 62. At this time, the staff only needs to rotate the threaded rod 51, so that the threaded rod 51 moves up and down, thereby the fixing plate 31 and the bottom plate 2 move up and down, which reduces the difficulty of the staff adjusting the height of the liquid storage bottle 3. When the staff does not need to use the sleeve rod 62, the staff only needs to move the sleeve rod 62 completely into the sleeve 61, and rotate the sleeve 61, so that the magnet block 64 on the sleeve 61 and the iron sheet 65 are attracted to each other, thereby the sleeve 61 remains stable.

[0032] The bottom surface of the sleeve rod 62 is provided with a sliding groove 7, and the sliding rod 71 is in a rectangular rod structure and is slidably arranged in the sliding groove 7. The inner wall of the sliding groove 7 is provided with a driving groove 72, and the driving rod 73 is in a rectangular rod structure and is slidably arranged in the driving groove 72. The driving rod 73 is fixed with the sliding rod 71. One end of the compression spring 8 is fixed on the upper surface of the sliding rod 71, and the other end of the compression spring 8 is fixed with the inner top wall of the sliding groove 7. The upper surface of the base 1 is provided with a limiting hole 81 matched with the sliding rod 71.

[0033] When the staff needs to support the bottom plate 2 by the supporting assembly 5, the staff needs to pull the driving rod 73 upwards, so that the sliding rod 71 moves upwards and is completely moved into the sliding groove 7. Then, the staff needs to rotate the sleeve rod 62 downwards, so that the sleeve rod 62 abuts against the upper surface of the base 1. At this time, the staff only needs to loosen the driving rod 73, so that the sliding rod 71 moves downwards under the action of the compression spring 8, thereby the sliding rod 71 is connected with the limiting hole 81, and the sleeve rod 62 remains stable.

[0034] In order to reduce the difficulty of the staff rotating the threaded rod 51, the upper end of the threaded rod 51 is fixed with a handle 9.

[0035] The use principle of the device for quantitatively adding solution in the embodiment is as follows: when the staff needs to quantitatively add solution into the test tube, the staff needs to place the test tube on the weighing sensor on the base 1 and make the opening of the test tube be directly below the outlet of the liquid outlet pipe of the liquid storage bottle 3, so that the test tube can be kept stable. Then, the staff needs to open the electromagnetic valve A and the electromagnetic valve B on the liquid storage bottle 3, so that the solution can flow out from the outlet of the liquid outlet pipe under the action of the atmospheric pressure and finally flow into the test tube. When the liquid in the test tube reaches the set value, the weighing sensor sends a signal, so that the control system closes the electromagnetic valve A and the electromagnetic valve B, and finally completes sampling. Then, when the staff needs to add solution to test tubes of different specifications, the staff needs to adjust the height of the liquid storage bottle 3. At this time, the staff needs to rotate the threaded rod 51 and adjust the length of the telescopic rod 6 so that the telescopic rod 6 abuts against the upper surface of the base 1, so that the support assembly 5 supports the bottom plate 2. At this time, the staff only needs to twist the locking switch 21 and rotate the threaded rod 51, so that the height of the liquid storage bottle 3 can be adjusted, thereby reducing the difficulty of the staff in adjusting the height of the liquid storage bottle 3, without the need to remove the liquid storage bottle 3, so that the use experience of the staff is improved.

[0036] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall be considered as falling within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A device for quantitative addition of solution, comprising a base (1), a vertical rod (11) fixed on the upper surface of the base (1), a bottom plate (2) slidingly arranged on the vertical rod (11), a locking switch (21) arranged at the joint of the bottom plate (2) and the vertical rod (11), and a liquid storage bottle (3) arranged on the bottom plate (2), characterized in that: The bottom surface middle part of the bottom plate (2) is fixed with two opposite fixed plates (31), and the rotating block (4) is arranged between the two fixed plates (31) and rotates together, the lower end of the rotating block (4) is opened, and the supporting assembly (5) for supporting the bottom plate (2) is arranged on the rotating block (4). ​ 2. A device for dosing a solution according to claim 1, characterized in that: The supporting assembly (5) comprises a threaded rod (51) rotatably connected with the lower end of the rotating block (4), and a telescopic rod (6) threadedly connected with the lower end of the threaded rod (51).

3. A device for dosing a solution according to claim 2, characterized in that: The telescopic rod (6) comprises a sleeve (61) threadedly connected with the lower end of the threaded rod (51), a sleeve rod (62) slidably connected with the lower end of the sleeve (61), a fixing bolt (63) threadedly connected with the lower end of the side wall of the sleeve (61), a magnet block (64) fixed on the side wall of the sleeve (61), and an iron sheet (65) embedded in the bottom surface of the bottom plate (2).

4. A device for dosing a solution according to claim 3, characterized in that: The bottom surface of the sleeve rod (62) is provided with a sliding groove (7), and the sliding groove (7) is slidably provided with a sliding rod (71).

5. A device for dosing a solution according to claim 4, characterized in that: The inner wall of the sliding groove (7) is provided with a driving groove (72) penetrating through, and the driving groove (72) is slidably provided with a driving rod (73), and the driving rod (73) and the sliding rod (71) are fixed with each other.

6. A device for dosing a solution according to claim 5, characterized in that: The upper surface of the sliding rod (71) is fixed with a compression spring (8), and the other end of the compression spring (8) is fixed with the inner top wall of the sliding groove (7).

7. A device for dosing a solution according to claim 6, characterized in that: The upper surface of the base (1) is provided with a limiting hole (81) matched with the sliding rod (71).

8. A device for dosing a solution according to claim 7, characterized in that: The upper end of the threaded rod (51) is fixed with a handle (9) for reducing the difficulty of rotating the threaded rod (51) by the staff.

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