COD digester convenient to fix

Abstract

The utility model belongs to the technical field of COD (Chemical Oxygen Demand) digester, and particularly relates to a COD digester convenient to fix, which comprises a movable plate, three fixing mechanisms are arranged at the lower end of the movable plate, each fixing mechanism comprises two first supporting plates which are arranged in a front-back corresponding manner, and the two first supporting plates are fixedly connected with the movable plate. A bidirectional threaded rod is jointly and rotationally connected between the two first supporting plates, two moving blocks are arranged on the bidirectional threaded rod, the two moving blocks are arranged on the two parts, opposite in thread rotation direction, of the bidirectional threaded rod in a threaded and sleeving mode respectively, and a first limiting rod is jointly and fixedly connected between the two first supporting plates. According to the utility model, the condensation pipes and the digestion bottle can be subjected to retention butt joint, an operator does not need to adjust the condensation pipes with one hand and adjust the position of the digestion bottle with the other hand, the butt joint is simple and rapid, the efficiency is high, the butt joint of the three groups of condensation pipes and the digestion bottle can be synchronously released after digestion is completed, and the digestion experiment efficiency is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of COD digester technology, and in particular to a COD digester that is easy to fix. Background Art

[0002] A COD digester (chemical oxygen demand digester) is an instrument used to determine the chemical oxygen demand (COD) in water or wastewater. COD is an important indicator for measuring the degree of organic pollution in water bodies and is widely used in water quality analysis, environmental monitoring, and industrial wastewater treatment.

[0003] The existing COD digester requires manual operation, where the condenser tube is passed through the air cooler and then connected to the digestion flask located on the lower heating furnace. Due to the excessive length of the condenser tube and the variable position of the digestion flask on the lower heating furnace, the connection process is cumbersome and prone to damage due to operator error.

[0004] Therefore, we propose a COD digester that is easy to fix to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a COD digester that is easy to fix.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A COD digester that is easy to fix includes a movable plate. The lower end of the movable plate is provided with three fixing mechanisms. Each fixing mechanism includes two first support plates arranged front and rear, which are fixedly connected to the movable plate. A bidirectional threaded rod is rotatably connected between the two first support plates. Two movable blocks are provided on the bidirectional threaded rod. The two movable blocks are respectively threaded onto the two oppositely threaded portions of the bidirectional threaded rod. A first limiting rod is fixedly connected between the two first support plates. The first limiting rod passes through the two movable blocks and is slidably connected to them. An arc-shaped clamp is fixedly connected to each of the two movable blocks. A first rotating block is rotatably connected to the front end of the first support plate located on the front side. The first rotating block is coaxially fixedly connected to the bidirectional threaded rod.

[0008] Preferably, a base is provided below the movable plate, a threaded rod is rotatably connected to the base, the movable plate is threaded onto the threaded rod, a second limiting rod is fixedly connected to the upper end of the base, the second limiting rod passes through the movable plate and is slidably connected to it, and a second rotating block is fixedly connected to the upper end of the threaded rod.

[0009] Preferably, the movable plate has three limiting holes.

[0010] Preferably, the upper end of the base is provided with a heating furnace, and the upper end of the heating furnace is provided with three limiting grooves.

[0011] Preferably, a second support plate is fixedly connected to the upper end of the base, and a cooler is provided at the front end of the second support plate.

[0012] Preferably, four anti-slip pads are fixedly connected to the lower end of the base, and all four anti-slip pads are made of rubber.

[0013] Compared with existing technologies, the advantages of this device are:

[0014] 1. Place the digestion flask in the limiting groove at the top of the heating furnace, pass the condenser tube through the limiting hole on the moving plate and through the cooling port of the air cooler, and it can be docked with the digestion flask in the limiting groove below. The operator does not need to adjust the position of the condenser tube with one hand and the digestion flask with the other. The docking is simple, quick and efficient.

[0015] 2. After the three sets of condenser tubes are connected to the digestion bottles, rotate the first rotating block in each fixing mechanism to bring the two arc-shaped clamps in each fixing mechanism closer together, thereby clamping and fixing each condenser tube. The digestion work can then be carried out. After the digestion work is completed, rotate the second rotating block to move the moving plate up and drive the three condenser tubes fixed by the fixing mechanism to rise and release them from the corresponding digestion bottles. The digestion bottles after digestion can then be taken out from the limiting groove. There is no need to disconnect each set of condenser tubes from the digestion bottles in turn, which speeds up the efficiency of the digestion experiment.

[0016] In summary, this invention can fix the condenser tube and digestion bottle in place, eliminating the need for operators to adjust the position of the condenser tube with one hand and the digestion bottle with the other. The connection is simple, quick, and efficient. After digestion, the connection between the three sets of condenser tubes and digestion bottles can be released simultaneously, thus accelerating the digestion experiment. Attached Figure Description

[0017] Figure 1 A perspective view of a COD digester that is easy to fix according to this utility model;

[0018] Figure 2 This is a bottom view of a COD digester that is easy to fix according to this utility model;

[0019] Figure 3 This is a partial perspective view of a COD digester that is easy to fix according to the present invention.

[0020] In the figure: 1. Moving plate, 2. First support plate, 3. Bidirectional threaded rod, 4. Moving block, 5. First limiting rod, 6. Arc-shaped clamp, 7. Limiting hole, 8. First rotating block, 9. Base, 10. Threaded rod, 11. Second rotating block, 12. Second limiting rod, 13. Second support plate, 14. Cold air blower, 15. Heating furnace, 16. Limiting groove, 17. Anti-slip pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figures 1-3 A COD digester that is easy to fix includes a movable plate 1. The lower end of the movable plate 1 is provided with three fixing mechanisms. The fixing mechanism includes two first support plates 2 arranged front and rear respectively. Both first support plates 2 are fixedly connected to the movable plate 1. A bidirectional threaded rod 3 is rotatably connected between the two first support plates 2. Two movable blocks 4 are provided on the bidirectional threaded rod 3. The two movable blocks 4 are respectively threaded onto the two parts of the bidirectional threaded rod 3 with opposite threads. A first limiting rod 5 is fixedly connected between the two first support plates 2. The first limiting rod 5 passes through the two movable blocks 4 and is slidably connected to them. An arc-shaped clamping plate 6 is fixedly connected to each of the two movable blocks 4. A first rotating block 8 is rotatably connected to the front end of the first support plate 2 located on the front side. The first rotating block 8 is coaxially fixedly connected to the bidirectional threaded rod 3.

[0023] By rotating the first rotating block 8 in each fixed mechanism, the corresponding bidirectional threaded rod 3 is driven to rotate. The two moving blocks 4, which are threaded on the bidirectional threaded rod 3, move axially closer or further away from each other under the limit of the first limiting rod 5, thereby driving the two arc-shaped clamps 6 to move closer or further away from each other.

[0024] A base 9 is provided below the movable plate 1. A threaded rod 10 is rotatably connected to the base 9. The movable plate 1 is threaded onto the threaded rod 10. A second limiting rod 12 is fixedly connected to the upper end of the base 9. The second limiting rod 12 passes through the movable plate 1 and is slidably connected to it. A second rotating block 11 is fixedly connected to the upper end of the threaded rod 10. By rotating the second rotating block 11, the threaded rod 10 is rotated, and the movable plate 1 moves up and down axially under the limitation of the second limiting rod 12.

[0025] The movable plate 1 has three limiting holes 7, the upper end of the base 9 is provided with a heating furnace 15, the upper end of the heating furnace 15 is provided with three limiting grooves 16, the upper end of the base 9 is fixedly connected with a second support plate 13, and the front end of the second support plate 13 is provided with a cold air blower 14.

[0026] The digestion flask is fixed by placing it in the limiting groove 16 at the upper end of the heating furnace 15. The three limiting grooves 16 correspond to the three cooling ports on the air cooler 14 and the three limiting holes 7 on the moving plate 1. The condenser tube is passed through the limiting holes 7 on the moving plate 1 and through the cooling port of the air cooler 14 to dock with the digestion flask in the lower limiting groove 16. The operator does not need to adjust the position of the condenser tube with one hand and the digestion flask with the other. After the three sets of condenser tubes are docked with the digestion flask, the first rotating block 8 in each fixing mechanism is rotated to bring the two arc-shaped clamps 6 in each fixing mechanism closer together to clamp and fix the condenser tubes, and the digestion work can be carried out. After the digestion work is completed, the second rotating block 11 is rotated to rotate the threaded rod 10. The moving plate 1 rises and drives the three condenser tubes fixed by the fixing mechanism to rise and release them from docking with the corresponding digestion flasks. The digestion flask can then be taken out from the limiting groove 16.

[0027] Four anti-slip pads 17 are fixedly connected to the lower end of the base 9. All four anti-slip pads 17 are made of rubber and have good anti-slip performance, which can effectively prevent the base 9 from sliding on the work platform.

[0028] When using this invention, place the digestion bottle in the limiting groove 16 at the upper end of the heating furnace 15, and pass the condenser tube through the limiting hole 7 on the moving plate 1 and through the cooling port of the air cooler 14 to connect with the digestion bottle in the lower limiting groove 16. There is no need for the operator to adjust the position of the condenser tube with one hand and the digestion bottle with the other. After the three sets of condenser tubes are connected with the digestion bottles, rotate the first rotating block 8 in each fixing mechanism to bring the two arc-shaped clamps 6 in each fixing mechanism closer together to clamp and fix each condenser tube, and the digestion work can be carried out. After the digestion work is completed, rotate the second rotating block 11, the moving plate 1 rises and drives the three condenser tubes fixed by the fixing mechanism to rise and release the connection with the corresponding digestion bottle. The digestion bottle can then be taken out from the limiting groove 16.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A COD digester that is easy to fix, comprising a movable plate (1), characterized in that, The lower end of the movable plate (1) is provided with three fixing mechanisms. The fixing mechanisms include two first support plates (2) arranged in front and behind respectively. Both first support plates (2) are fixedly connected to the movable plate (1). A bidirectional threaded rod (3) is rotatably connected between the two first support plates (2). Two moving blocks (4) are provided on the bidirectional threaded rod (3). The two moving blocks (4) are respectively threaded onto the two parts of the bidirectional threaded rod (3) with opposite thread directions. A first limiting rod (5) is fixedly connected between the two first support plates (2). The first limiting rod (5) passes through the two moving blocks (4) and is slidably connected to them. An arc-shaped clamp (6) is fixedly connected to both moving blocks (4). A first rotating block (8) is rotatably connected to the front end of the first support plate (2) located on the front side. The first rotating block (8) is coaxially fixedly connected to the bidirectional threaded rod (3).

2. The COD digester for easy fixation according to claim 1, characterized in that, The movable plate (1) is provided with a base (9) below it. A threaded rod (10) is rotatably connected to the base (9). The movable plate (1) is threaded onto the threaded rod (10). A second limiting rod (12) is fixedly connected to the upper end of the base (9). The second limiting rod (12) passes through the movable plate (1) and is slidably connected to it. A second rotating block (11) is fixedly connected to the upper end of the threaded rod (10).

3. The COD digester for easy fixation according to claim 1, characterized in that, The movable plate (1) has three limiting holes (7).

4. The COD digester that is easy to fix according to claim 2, characterized in that, The base (9) is provided with a heating furnace (15) at its upper end, and the heating furnace (15) is provided with three limiting grooves (16) at its upper end.

5. A COD digester that is easy to fix according to claim 2, characterized in that, The upper end of the base (9) is fixedly connected to a second support plate (13), and the front end of the second support plate (13) is provided with a cold air blower (14).

6. A COD digester that is easy to fix according to claim 2, characterized in that, The lower end of the base (9) is fixedly connected to four anti-slip pads (17), all of which are made of rubber.

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