COD (Chemical Oxygen Demand) digestion device

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By designing an L-shaped protective plate and back plate in the COD digestion device to seal the conical flask and reflux pipe, the problems of dust contamination and accidental damage are solved, achieving both protection and ease of use of the device.

CN223841598UActive Publication Date: 2026-01-27SHANGHAI WAIGAOQIAO FREE TRADE ZONE ENVIRONMENTALPROTECTION SERVICE

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Patent Information

Application Number: CN202423124183.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-12-17
Publication Date: 2026-01-27
Estimated Expiration: 2034-12-17

AI Technical Summary

Technical Problem

When not in use, existing COD digestion devices have conical flasks and reflux tubes placed directly on the device, which are easily contaminated by external dust and accidentally touched, leading to damage to the glassware and inconvenience in use.

Method used

The COD digestion device is designed, which includes a tank, an L-shaped bracket and a main unit. It adopts a design that combines an L-shaped protective plate with a back plate to seal and shield the conical flask and reflux pipe when not in use. The protective plate is connected by hooks and connecting rings, and is equipped with a storage shell and a sponge protective cover to prevent dust and accidental contact.

Benefits of technology

It effectively prevents external dust contamination and accidental damage to the conical flask and reflux tube, keeps the device clean and safe, facilitates the use of spare containers, and protects the main unit from impact damage.

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Abstract

The utility model discloses a COD (Chemical Oxygen Demand) digestion device, relates to the technical field of water quality detection instruments, and solves the problems that when the existing COD digestion device is not used, a conical flask and a return pipe are usually directly placed on the COD digestion device, no protective device is arranged outside the conical flask and the return pipe, and external dust directly falls on the device when the conical flask and the return pipe are placed for a long time, so that the subsequent use is influenced. According to the technical scheme, the problems that a conical flask, a backflow pipe and other glassware are damaged due to the fact that the conical flask and the backflow pipe are easily touched by mistake, and using is inconvenient are solved, the device comprises a groove body, two L-shaped supports and a main machine body, the two symmetrical L-shaped supports are fixedly installed on the upper surface of the rear side of the groove body, and the bottom of the main machine body is fixedly connected with the top planes of the L-shaped supports. According to the utility model, through the matching design of the two L-shaped protective plates and the back plate, the conical flask and the return pipe in the COD digester are sealed and shielded, so that external dust is not easy to directly fall on the conical flask and the return pipe, and the follow-up use is facilitated.

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Description

Technical Field

[0001] This utility model relates to the field of water quality testing instruments, and in particular to a COD digestion device. Background Technology

[0002] COD digestion devices are instruments used in water quality testing. The COD digester uses a high-temperature COD reflux digestion method with timed control of the heating plate, which can heat multiple dedicated digestion bottles via reflux devices.

[0003] While existing COD digestion devices can meet basic usage requirements, when not in use, the conical flasks and reflux tubes are usually placed directly on the COD digester without external protection. Over time, dust falls directly onto the device, affecting subsequent use. They are also prone to accidental contact, which can damage glassware such as conical flasks and reflux tubes, making them inconvenient to use.

[0004] Therefore, a COD digestion device is proposed. Utility Model Content

[0005] To improve existing COD digestion devices, when not in use, conical flasks and reflux tubes are usually placed directly on the COD digester without external protection. When left for a long time, external dust falls directly onto the device, affecting subsequent use. It is also easy to accidentally touch and damage glassware such as conical flasks and reflux tubes, making it inconvenient to use. This utility model provides a COD digestion device.

[0006] This utility model provides a COD digestion device, which adopts the following technical solution:

[0007] A COD digestion device includes a tank, two L-shaped supports, and a main body. Two symmetrical L-shaped supports are fixedly installed on the upper rear surface of the tank. The bottom of the main body is fixedly connected to the top plane of the L-shaped supports. A back plate is installed between the two L-shaped supports. Both ends of the back plate are hinged with L-shaped protective plates. The L-shaped protective plates cover the space between the tank and the main body. The two L-shaped protective plates are connected at their closest points through a connecting structure.

[0008] By adopting the above technical solution, through the cooperative design of two L-shaped protective plates and the back plate, when not in use, the two L-shaped protective plates rotate relative to each other until they abut against each other, thereby sealing and shielding the conical flask and reflux tube in the COD digester. This prevents external dust from falling directly onto the conical flask and reflux tube, which is beneficial for subsequent use. At the same time, it also reduces the risk of accidental contact that could damage the glassware such as the conical flask and reflux tube. When in use, the two L-shaped protective plates rotate open without affecting the normal use of the COD digester.

[0009] Optionally, the connection structure includes a ring rotatably mounted on one of the L-shaped guard plates, a hook fixedly mounted on the ring, and a connecting ring fixedly mounted on the other L-shaped guard plate, one end of the hook penetrating the interior of the connecting ring.

[0010] By adopting the above technical solution, the connection between the two L-shaped guard plates is achieved through the setting of hooks and connecting rings, thereby improving the protective effect of the L-shaped guard plates on parts in the internal space. Moreover, the operation is simple.

[0011] Optionally, the connection structure further includes a pressing plate fixedly installed on the other side of the ring, the weight of which is less than the weight of the hook.

[0012] By adopting the above technical solution, the setting of the pressing plate facilitates the rotation of the ring, thereby facilitating the connection and separation of the hook and the connecting ring.

[0013] Optionally, the L-shaped bracket has an insertion hole, and a threaded cylinder is fixedly installed on one side of the back plate. The threaded cylinder is inserted into the insertion hole, and a bolt is threaded to the end of the threaded cylinder away from the back plate.

[0014] By adopting the above technical solution, the back plate can be installed and fixed by inserting the threaded cylinder on the back plate into the insertion hole on the L-shaped bracket, and then connecting the bolt to the threaded cylinder.

[0015] Optionally, rubber strips are fixedly installed on the top and bottom of the inner side of the L-shaped bracket.

[0016] By adopting the above technical solution, the setting of the rubber strip improves the sealing effect between the L-shaped guard plate and the tank and the main body, and prevents the L-shaped guard plate from directly colliding with the tank and the main body, which is beneficial to the protection of the main body.

[0017] Optionally, a storage housing is fixedly installed on the inner side of the L-shaped bracket near the back plate, and the storage housing has a placement slot.

[0018] By adopting the above technical solution, the storage shell and placement slot are designed to hold conical flasks and reflux tubes, allowing unused conical flasks and reflux tubes to be stored when using the COD digester.

[0019] Optionally, a sponge protective sleeve is fixedly installed inside the placement slot.

[0020] By adopting the above technical solution, the sponge protective sleeve is designed to prevent damage caused by direct collision between the conical flask or reflux pipe and the storage shell.

[0021] Optionally, the L-shaped bracket is hinged to the back plate via a damping hinge.

[0022] By adopting the above technical solution and setting the damping hinge, the rotational connection between the L-shaped bracket and the back plate is realized. Moreover, during the operation of the entire device, the vibration generated is less likely to cause the L-shaped bracket installed on the back plate to sway back and forth, thus improving the stability of the connection between the L-shaped bracket and the back plate.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. This utility model, through the cooperative design of two L-shaped protective plates and a back plate, allows the two L-shaped protective plates to rotate relative to each other and abut against each other when not in use, thereby sealing and shielding the conical flask and reflux tube in the COD digester. This prevents external dust from falling directly onto the conical flask and reflux tube, facilitating subsequent use and reducing the risk of accidental contact that could damage the glassware such as the conical flask and reflux tube. When in use, the two L-shaped protective plates can be rotated open without affecting the normal operation of the COD digester.

[0025] 2. This utility model, through the setting of a storage shell and a placement slot, is used to place conical flasks and reflux tubes, so that unused conical flasks and reflux tubes can be stored when using a COD digester. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0027] Figure 2 This is a schematic diagram of the connection structure between the back plate and the L-shaped bracket of this utility model.

[0028] Figure 3 This is a schematic diagram of the inner side structure of the L-shaped guard plate of this utility model.

[0029] Figure 4 This is a schematic diagram of the connection structure of the ring, hook and pressing plate of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Tank; 2. L-shaped bracket; 3. Main unit body; 4. Back plate; 5. L-shaped protective plate; 6. Ring; 7. Hook; 8. Connecting ring; 9. Pressing plate; 10. Insertion hole; 11. Threaded cylinder; 12. Bolt; 13. Rubber strip; 14. Storage shell; 15. Placement slot; 16. Sponge protective cover; 17. Damping hinge. Detailed Implementation

[0032] The following description, in conjunction with the embodiments of this utility model, includes appendices. Figure 1-4The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Please refer to Figure 1-3 A COD digestion device includes a tank 1, two L-shaped supports 2, and a main body 3. Two symmetrical L-shaped supports 2 are fixedly installed on the upper rear surface of the tank 1. The bottom of the main body 3 is fixedly connected to the top plane of the L-shaped supports 2. A back plate 4 is installed between the two L-shaped supports 2. L-shaped guard plates 5 are hinged to both ends of the back plate 4. The L-shaped supports 2 and the back plate 4 are hinged by damping hinges 17. The damping hinges 17 enable rotational connection between the L-shaped supports 2 and the back plate 4, and during the operation of the entire device, the vibration generated does not easily cause the L-shaped supports 2 mounted on the back plate 4 to sway back and forth, thus improving the stability of the connection between the L-shaped supports 2 and the back plate 4.

[0034] Reference Figure 1-3 The L-shaped protective plates 5 shield the space between the tank 1 and the main body 3. Through the cooperative design of the two L-shaped protective plates 5 and the back plate 4, when not in use, the two L-shaped protective plates 5 rotate relative to each other until they abut, thus sealing and shielding the conical flask and reflux tube in the COD digester. This prevents external dust from falling directly onto the conical flask and reflux tube, facilitating subsequent use and reducing the risk of accidental contact that could damage the glassware such as the conical flask and reflux tube. When in use, the two L-shaped protective plates 5 rotate open without affecting the normal operation of the COD digester. Rubber strips 13 are fixedly installed on the top and bottom of the inner side of the L-shaped bracket 2. The rubber strips 13 improve the sealing effect between the L-shaped protective plates 5 and the tank 1 and the main body 3, and prevent direct collision between the L-shaped protective plates 5 and the tank 1 and the main body 3, thus protecting the main body 3. A storage housing 14 is fixedly installed on the inner side of the L-shaped bracket 2 near the back plate 4. A placement slot 15 is provided on the storage housing 14. The storage housing 14 and placement slot 15 are designed to hold conical flasks and reflux tubes, allowing unused conical flasks and reflux tubes to be stored when using the COD digester. A sponge protective sleeve 16 is fixedly installed inside the placement slot 15. The sponge protective sleeve 16 prevents direct collision between the conical flasks or reflux tubes and the storage housing 14, thus reducing the risk of damage.

[0035] Reference Figure 2The L-shaped bracket 2 has an insertion hole 10. A threaded cylinder 11 is fixedly installed on one side of the back plate 4. The outer diameter of the threaded cylinder 11 is matched with the diameter of the insertion hole 10. The threaded cylinder 11 is inserted into the insertion hole 10. A bolt 12 is threaded to the end of the threaded cylinder 11 away from the back plate 4. The head of the bolt 12 is larger than the diameter of the insertion hole 10. By inserting the threaded cylinder 11 on the back plate 4 into the insertion hole 10 on the L-shaped bracket 2, and then threading the bolt 12 to the threaded cylinder 11, the back plate 4 can be installed and fixed.

[0036] Reference Figure 1 and Figure 4 Two L-shaped guard plates 5 are connected at their near ends by a connecting structure. This connecting structure includes a ring 6 rotatably mounted on one of the L-shaped guard plates 5, a hook 7 fixedly mounted on the ring 6, and a connecting ring 8 fixedly mounted on the other L-shaped guard plate 5. A connecting post is fixedly mounted on each L-shaped guard plate 5, and the connecting post has an annular groove. The ring 6 is located inside the annular groove. One end of the hook 7 passes through the interior of the connecting ring 8. The hook 7 and the connecting ring 8 connect the two L-shaped guard plates 5, thereby improving the protection of parts inside the L-shaped guard plates and simplifying operation. The connecting structure also includes a pressing plate 9 fixedly mounted on the other side of the ring 6. The pressing plate 9 is lighter than the hook 7, allowing for easy rotation of the ring 6, thus facilitating the connection and separation of the hook 7 and the connecting ring 8.

[0037] The implementation principle of this utility model is as follows:

[0038] During use, the two L-shaped protective plates 5 on both sides of the main body 3 are rotated open, fully exposing the structure on the main body 3 and the tank 1, allowing the operator to operate and use the entire device. During use, spare conical flasks and reflux pipes are placed inside the storage housing 14 on the two L-shaped protective plates 5 for easy access by the operator. After use, the two L-shaped protective plates 5 are rotated to cover the structure on the main body 3 and the tank 1, and then the hook 7 on one L-shaped protective plate 5 is inserted into the connecting ring 8 on the other L-shaped protective plate 5. Internally, the connection between the two L-shaped protective plates 5 is achieved, thereby sealing and shielding the conical flask and reflux tube in the COD digester. This prevents external dust from falling directly onto the conical flask and reflux tube, which is beneficial for subsequent use. It also reduces the risk of accidental contact that could damage the glassware such as the conical flask and reflux tube. Rubber strips 13 are fixedly installed at the top and bottom of the inner side of the L-shaped bracket 2, which improves the sealing effect between the L-shaped protective plate 5 and the tank 1 and the main body 3. Moreover, it prevents the L-shaped protective plate 5 from directly colliding with the tank 1 and the main body 3, thus protecting the main body 3.

[0039] In addition, by inserting the threaded cylinder 11 on the back plate 4 into the insertion hole 10 on the L-shaped bracket 2, and then threading the bolt 12 to the threaded cylinder 11, the back plate 4 can be installed and fixed, which facilitates the disassembly and assembly of the protective shell composed of the back plate 4 and the two L-shaped protective plates 5.

[0040] In summary, through the design of the two L-shaped protective plates 5 and the back plate 4, when not in use, the two L-shaped protective plates 5 rotate relative to each other until they abut against each other, thus sealing and shielding the conical flask and reflux tube in the COD digester. This prevents external dust from falling directly onto the conical flask and reflux tube, which is beneficial for subsequent use. It also reduces the risk of accidental contact that could damage the glassware such as the conical flask and reflux tube. When in use, the two L-shaped protective plates 5 rotate open without affecting the normal operation of the COD digester.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A COD digestion device, comprising a tank (1), two L-shaped supports (2) and a main body (3), characterized in that: Two symmetrical L-shaped brackets (2) are fixedly installed on the upper surface of the rear side of the tank (1). The bottom of the main body (3) is fixedly connected to the top plane of the L-shaped brackets (2). A back plate (4) is installed between the two L-shaped brackets (2). Both ends of the back plate (4) are hinged with L-shaped guard plates (5). The L-shaped guard plates (5) cover the space between the tank (1) and the main body (3). The two L-shaped guard plates (5) are connected by a connecting structure at their closest ends.

2. The COD digestion device according to claim 1, characterized in that: The connection structure includes a ring (6) rotatably mounted on one of the L-shaped guard plates (5), a hook (7) fixedly mounted on the ring (6), and a connecting ring (8) fixedly mounted on the other L-shaped guard plate (5), with one end of the hook (7) penetrating the interior of the connecting ring (8).

3. The COD digestion device according to claim 2, characterized in that: The connection structure also includes a pressing plate (9) fixedly installed on the other side of the ring (6), the weight of which is less than the weight of the hook (7).

4. The COD digestion device according to claim 1, characterized in that: The L-shaped bracket (2) has an insertion hole (10), and a threaded cylinder (11) is fixedly installed on one side of the back plate (4). The threaded cylinder (11) is inserted into the insertion hole (10), and a bolt (12) is threaded to the end of the threaded cylinder (11) away from the back plate (4).

5. The COD digestion device according to claim 1, characterized in that: Rubber strips (13) are fixedly installed on the top and bottom of the inner side of the L-shaped bracket (2).

6. The COD digestion device according to claim 1, characterized in that: The L-shaped bracket (2) has a storage housing (14) fixedly installed on the inner side of the end near the back plate (4), and the storage housing (14) has a placement slot (15).

7. A COD digestion device according to claim 6, characterized in that: A sponge protective sleeve (16) is fixedly installed inside the placement slot (15).

8. The COD digestion device according to claim 1, characterized in that: The L-shaped bracket (2) and the back plate (4) are hinged together by a damping hinge (17).