Reducing sugar automatic titration experimental device

Abstract

The utility model discloses an automatic reducing sugar titration experimental device which comprises a base, a heater, a beaker and a fixing structure, the heater is connected above the base through a bolt, the beaker is arranged above a heating plate of the heater, the fixing structure is arranged above the base, and the fixing structure comprises a fixing block arranged above the heater. The fixing device has the advantages that the fixing block can be driven to move to fix the outer wall of the beaker by adjusting the connecting block of the fixing structure, shaking and toppling of the beaker in the testing process are avoided, the stability of the reducing sugar testing process is guaranteed, the limiting structure is formed by the limiting block and the limiting rod, and the fixing device is convenient to use. And the sliding rod can be temporarily limited through the limiting rod, so that the fixing efficiency of the beaker is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of reducing sugar experiments, in particular to an automatic reducing sugar titration experimental device. Background Art

[0002] Reducing sugar refers to sugars with reducing properties. Among sugars, monosaccharides with free aldehyde or ketone groups and disaccharides with free aldehyde groups in the molecule are all reducing. Reducing sugars mainly include glucose, fructose, galactose, lactose, maltose, etc. In general, the reducing ability of monosaccharides mainly comes from its aldehyde group, such as glucose, while polysaccharides mostly become sugar acids after reduction due to the presence of hemiacetal hydroxyl groups. For example, glucose will become gluconic acid. In the test process of reducing sugars, it is necessary to use the reducing sugar automatic titration experimental device.

[0003] The existing reducing sugar automatic titration experimental device usually requires a heater to heat the liquid in the beaker, and then a specific reagent is dropped into the beaker for testing. The heated liquid in the beaker will boil and produce water vapor. The boiling liquid will cause the beaker to shake, and the shaking and tipping of the beaker will cause liquid leakage, posing a safety hazard.

[0004] Therefore, it is necessary to propose an automatic titration experimental device for reducing sugar in view of the above technical scheme. Utility Model Content

[0005] The utility model aims to provide an automatic titration experimental device for reducing sugars, so as to solve the problem in the above-mentioned background technology that the liquid in the beaker of the automatic titration experimental device for reducing sugars will boil during the test, causing the beaker to shake, and the shaking and tipping of the beaker will cause liquid leakage, posing a safety hazard.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reducing sugar automatic titration experimental device, comprising a base, a heater, a beaker and a fixed structure, the heater is connected to the top of the base by bolts, the beaker is arranged above the heating plate of the heater, the fixed structure is arranged above the base, and the fixed structure comprises a fixed block arranged above the heater, a sliding plate rotatably connected to one side of the fixed block, a connecting rod rotatably connected to one side of the fixed block, and a connecting block rotatably connected to one end of the connecting rod.

[0007] By adopting the above technical solution, the connecting block of the fixed structure can be adjusted to drive the fixed block to move and fix the outer wall of the beaker, thereby preventing the beaker from shaking and tipping over during the test.

[0008] Preferably, the fixing structure includes a fixing frame bolted to the top of the base, a sliding rod slidably connected to one side of the fixing frame, and a first spring arranged inside the fixing frame, one end of the sliding rod is welded to one side of the connecting block, one end of the first spring is fixedly connected to the inside of the fixing frame, and the other end of the first spring is fixedly connected to the connecting block.

[0009] By adopting the above technical solution, the beaker can be fixed by pulling the sliding rod to drive the connecting block to move, which is simple to operate and convenient for the staff to fix the beaker for reducing sugar test.

[0010] Preferably, the limiting structure is arranged on the fixed frame at one side of the sliding rod, and the limiting structure includes a limiting block bolted to one side of the outer wall of the fixed frame and a limiting rod rotatably connected to one side of the limiting block.

[0011] By adopting the above technical solution, the sliding rod can be temporarily limited by the limiting rod, thereby ensuring the fixing efficiency of the beaker.

[0012] Preferably, a second spring is fixedly provided on one side of the sliding plate, and the other end of the second spring is fixedly connected to two sides of the fixing block.

[0013] By adopting the above technical solution and providing the second spring, the fixing block can be restored to the initial position after the beaker is released from fixation.

[0014] Preferably, a guide rod is fixedly connected inside the fixing frame, and the guide rod is slidably connected to the fixing block.

[0015] By adopting the above technical solution, the fixed block can be limited by the guide rod to ensure the stability of the fixed block during movement.

[0016] Preferably, a limiting protrusion is provided inside the fixing frame at one side of the connecting block, and the limiting protrusion is slidably connected to the connecting block.

[0017] By adopting the above technical solution, the connection block is limited by the limiting protrusion, thereby ensuring the stability of the connection block during movement.

[0018] Preferably, the bracket is connected to the top of the base by bolts, and the test tube is fixed to one side of the top of the bracket by bolts.

[0019] By adopting the above technical solution, the test reagents can be stored in test tubes, which is convenient for subsequent test use.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: by adjusting the connecting block of the fixed structure, the fixed block can be driven to move to fix the outer wall of the beaker, thereby preventing the beaker from shaking and tipping over during the test, thereby ensuring the stability of the reducing sugar test process; a limiting structure is formed by setting a limiting block and a limiting rod, and the sliding rod can be temporarily limited by the limiting rod, thereby ensuring the fixing efficiency of the beaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0022] Figure 2 It is a front structural schematic diagram of the utility model;

[0023] Figure 3 For this utility model Figure 2 A magnified schematic diagram of part A;

[0024] Figure 4 It is a side structural schematic diagram of the utility model.

[0025] The reference numerals in the figure are: 1. base; 2. heater; 3. beaker; 4. fixed structure; 401. fixed frame; 402. sliding rod; 403. connecting block; 404. first spring; 405. second spring; 406. connecting rod; 407. sliding plate; 408. fixed block; 409. guide rod; 5. limiting structure; 501. limiting block; 502. limiting rod; 6. bracket; 7. test tube. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The following is combined with Figure 1-4 The utility model is described in further detail.

[0028] See also Figure 1-4, an embodiment provided by the utility model: an automatic titration experimental device for reducing sugars, comprising a base 1, a heater 2, a beaker 3 and a fixed structure 4, the heater 2 is connected to the top of the base 1 by bolts, a central controller is installed on one side above the base 1, and an audible and visual alarm is installed above the central controller, and the central controller is electrically connected to the heater 2, the beaker 3 is arranged above the heating plate of the heater 2, and the liquid in the beaker 3 can be heated by starting the heater 2, the fixed structure 4 is arranged above the base 1, the fixed structure 4 comprises a fixed block 408 arranged above the heater 2, a curved protrusion is arranged on one side of the fixed block 408, the curved protrusion can be better adsorbed on both sides of the beaker 3 to ensure the stability of the beaker 3 after being fixed, a sliding plate 407 rotatably connected to one side of the fixed block 408, the sliding plate 407 is T-shaped, and a square groove is opened on one side of the sliding plate 407, and a rotating shaft on one side of the fixed block 408 is rotatably connected to the square groove, The connecting rod 406 rotatably connected to one side of the fixed block 408 and the connecting block 403 rotatably connected to one end of the connecting rod 406, the movement of the connecting block 403 can change the angle between the connecting rod 406 and the sliding plate 407, thereby driving the sliding plate 407 to move, and the movement of the sliding plate 407 will drive the fixed block 408 to move to fix the beaker 3, the bracket 6 is connected to the top of the base 1 by bolts, an electronic thermometer is installed on one side of the bracket 6, and the electronic thermometer is electrically connected to the central controller, the central controller detects that the electronic thermometer is not in the set range for a long time or the heating device cannot work normally, and the alarm can be made to emit an audible and visual alarm, the test tube 7 is fixed to one side of the top of the bracket 6 by bolts, a micro solenoid valve and a flow meter are installed at the bottom of the test tube 7, and the micro solenoid valve and the flow meter are electrically connected to the central controller, the central controller can control the micro solenoid valve, and the micro solenoid valve can accurately control the liquid flow rate in the burette to keep it at a fixed flow rate for titration.

[0029] See also Figure 1-4The fixing structure 4 includes a fixing frame 401 bolted to the top of the base 1. The fixing frame 401 is a hollow structure, and the fixing frame 401 is fixed to the top of the base 1 by multiple sets of bolts to improve the stability of the structure. A sliding rod 402 is slidably connected to one side of the fixing frame 401. One end of the sliding rod 402 is fixedly connected to a pull plate, which is convenient for the staff to pull the sliding rod 402 to complete the fixation of the beaker 3. A first spring 404 is arranged inside the fixing frame 401. The first spring 404 is in a stretched state. One end of the sliding rod 402 is welded to one side of the connecting block 403. The movement of the sliding rod 402 can drive the connecting block 403 to move. One end of the first spring 404 is fixedly connected to the inside of the fixing frame 401, and the other end of the first spring 404 is fixedly connected to the connecting block 403. The elastic force of the first spring 404 can pull the connecting block 403 to move, so that the fixing block 408 fits the outer wall of the beaker 3. A second spring 405 is fixedly provided on one side of the sliding plate 407, and the other end of the second spring 405 is fixedly connected to both sides of the fixed block 408. The second spring 405 is provided so that the fixed block 408 can return to its initial position after the beaker 3 is released. A guide rod 409 is fixedly connected inside the fixed frame 401, and the guide rod 409 is slidably connected to the fixed block 408. The fixed block 408 is limited by the guide rod 409 to ensure the stability of the fixed block 408 during the movement. A limiting protrusion is provided on one side of the connecting block 403 inside the fixed frame 401, and the limiting protrusion is slidably connected to the connecting block 403. The connecting block 403 is limited by the limiting protrusion to ensure the stability of the connecting block 403 during the movement. The connecting block 403 can be driven to move by pulling the sliding rod 402 to complete the fixing operation of the beaker 3. The operation is simple, which is convenient for the staff to fix the beaker 3 for the reducing sugar test.

[0030] See also Figure 1-4 , a limiting structure 5 is arranged on the fixed frame 401 at one side of the sliding rod 402, and the limiting structure 5 includes a limiting block 501 bolted to one side of the outer wall of the fixed frame 401, the limiting block 501 is fixedly connected to one side of the fixed frame 401 by four groups of bolts, and a rotation groove is opened on one side of the limiting block 501, a limiting rod 502 is rotatably connected to one side of the limiting block 501, and the limiting rod 502 is rotatably connected to the rotation groove of the limiting block 501, and the limiting rod 502 is made of stainless steel to avoid the limit rod 502 from breaking. The sliding rod 402 can be temporarily limited by the limiting rod 502, thereby ensuring the fixing efficiency of the beaker 3.

[0031] Working principle: when the beaker 3 needs to be fixed, the limit rod 502 is rotated 90 degrees so that its position does not overlap with the sliding rod 402, and then the sliding rod 402 is manually pulled, and the movement of the sliding rod 402 will drive the connecting block 403 to move, and the movement of the connecting block 403 will cause the first spring 404 to deform. Since the connecting block 403 is rotatably connected to the connecting rod 406, and the connecting rod 406 is rotatably connected to the sliding plate 407, and the sliding plate 407 is slidably connected to the guide rod 409, the movement of the connecting block 403 will drive the sliding plate 407 to move, and the movement of the sliding plate 407 will drive the fixed block 408 to move;

[0032] Then, the limiting rod 502 is rotated 90° in the opposite direction to fix the pull plate at one end of the sliding rod 402 to prevent the first spring 404 from rebounding. Then, the beaker 3 is placed above the heater 2, and the limiting rod 502 is rotated 90° again to separate it from the sliding rod 402. The first spring 404 will restore its deformation and push the connecting block 403 to move. The movement of the connecting block 403 drives the fixing block 408 to move. The movement of the fixing block 408 will fit the outer wall of the beaker 3, thereby fixing the beaker 3 and preventing the beaker 3 from shaking during the reducing sugar test, thereby ensuring the stability of the test process.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A reducing sugar automatic titration experimental device, characterized in that: include: A base (1); a heater (2), the heater (2) being connected to the top of the base (1) by means of bolts; a beaker (3), the beaker (3) being arranged above a heating plate of the heater (2); a fixing structure (4), the fixing structure (4) being arranged above the base (1), the fixing structure (4) comprising a fixing block (408) arranged above the heater (2), a sliding plate (407) rotatably connected to one side of the fixing block (408), a connecting rod (406) rotatably connected to one side of the fixing block (408), and a connecting block (403) rotatably connected to one end of the connecting rod (406).

2. The reducing sugar automatic titration experimental device according to claim 1, characterized in that: The fixing structure (4) comprises a fixing frame (401) bolted to the top of the base (1), a sliding rod (402) slidably connected to one side of the fixing frame (401), and a first spring (404) arranged inside the fixing frame (401), one end of the sliding rod (402) is welded to one side of a connecting block (403), one end of the first spring (404) is fixedly connected to the inside of the fixing frame (401), and the other end of the first spring (404) is fixedly connected to the connecting block (403).

3. A reducing sugar automatic titration experimental device as claimed in claim 2, characterized in that: The reducing sugar automatic titration experimental device comprises: a limiting structure (5), which is arranged on a fixed frame (401) and located on one side of a sliding rod (402), and the limiting structure (5) comprises a limiting block (501) bolted to one side of an outer wall of the fixed frame (401) and a limiting rod (502) rotatably connected to one side of the limiting block (501).

4. A reducing sugar automatic titration experimental device as claimed in claim 2, characterized in that: A second spring (405) is fixedly disposed on one side of the sliding plate (407), and the other end of the second spring (405) is fixedly connected to both sides of the fixing block (408).

5. A reducing sugar automatic titration experimental device as claimed in claim 2, characterized in that: The fixing frame (401) is internally fixedly connected to a guide rod (409), and the guide rod (409) is slidably connected to a fixing block (408).

6. A reducing sugar automatic titration experimental device as claimed in claim 2, characterized in that: A limiting protrusion is arranged inside the fixing frame (401) and located on one side of the connecting block (403), and the limiting protrusion is slidably connected to the connecting block (403).

7. The reducing sugar automatic titration experimental device according to claim 1, characterized in that: It also comprises a bracket (6), which is connected to the top of the base (1) by means of bolts; and a test tube (7), which is fixed to one side of the top end of the bracket (6) by means of bolts.

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