Dental waterline biofilm inhibition test device
By using a multi-layer placement chamber and a sliding movable frame in the dental waterline biofilm inhibition test device, the problem of inconvenient sample placement and removal is solved, achieving stable sample classification and efficient testing.
Patent Information
- Application Number
- CN202520341549.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing biofilm inhibition test device in the water system of dental treatment machines is inconvenient for placing and removing samples, and it is difficult to classify samples from the same batch at the same temperature but with different test times.
A dental waterline biofilm inhibition test device was designed, which uses a multi-layer placement chamber in a constant temperature incubator and a sliding mobile frame, combined with a fixing mechanism, to achieve stable placement and sorting of samples.
It improves the convenience of sample placement and retrieval, enhances space utilization, facilitates sample classification and differentiation, and improves experimental efficiency.
Smart Images

Figure CN223966581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing technology, and in particular to a dental waterline biofilm inhibition testing device. Background Technology
[0002] Dental treatment machines are indispensable equipment in dental clinics. Their water system is used to provide patients with the water needed for treatment. However, the water system of dental treatment machines is prone to the growth of bacteria and biofilm during use, which affects the hygiene of the water system. Biofilm is a complex structure composed of microorganisms such as bacteria, viruses, and fungi and their secreted extracellular polymers, which have resistance and stability to disinfectants.
[0003] The approach is to test and evaluate different biofilm inhibition methods by simulating the actual operating environment of the dental treatment machine's water system, in order to find an efficient, safe, and economical biofilm inhibition scheme. Specifically, different types and concentrations of test solutions are brought into contact with the corresponding biofilm samples, and then they are placed in a constant temperature incubator to maintain an appropriate temperature and time, and the degree of inhibition is then observed.
[0004] However, in practice, the reagent tubes or petri dishes used to place the samples are usually placed directly into the incubator individually, and they are also taken out one by one, which is quite inconvenient. Furthermore, it is difficult to classify samples from the same batch that are at the same temperature but have different testing times. There are still areas for improvement in terms of efficiency and ease of operation. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies, which involve placing samples individually into the incubator and removing them one by one, which is inconvenient. Furthermore, it is difficult to classify samples from the same batch at the same temperature but with different testing times. Therefore, this invention proposes a dental waterline biofilm inhibition test device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A dental waterline biofilm inhibition test device includes a constant temperature incubator, wherein multiple baffles are hinged to one side of the constant temperature incubator;
[0008] A placement rack for placing petri dishes and reagent tubes is installed inside a constant temperature incubator. The placement rack includes a fixed frame, which is fixedly installed inside the constant temperature incubator. The fixed frame has multiple placement cavities through partitions. Multiple movable frames are slidably arranged inside the placement cavities. The multiple placement cavities are respectively matched with multiple baffles.
[0009] A fixing mechanism is used to limit and fix the movable frame. The fixing mechanism is set inside the fixed frame. The fixing mechanism includes multiple sliding grooves opened on the inner wall of the bottom of the placement cavity. An inclined block is slidably arranged inside the sliding groove. A limiting groove is opened at the bottom of the movable frame, and multiple inclined blocks are respectively located inside multiple limiting grooves. A slot is opened on one side of the inner wall of the top of the limiting groove. The slot cooperates with the adjacent inclined block.
[0010] In one possible design, a limit rod is fixedly installed inside the chute, and the inclined block is slidably sleeved on the outer wall of the limit rod. A compression spring is sleeved on the outer wall of the limit rod, and the two ends of the compression spring are respectively fixedly installed at the bottom of the inclined block and the bottom inner wall of the chute.
[0011] In one possible design, the fixing mechanism further includes a side groove formed on one side of the movable frame, the slot being connected to the side groove, and an L-shaped movable plate being slidably disposed inside the side groove, one end of the L-shaped movable plate being slidably extended into the interior of the slot and cooperating with the inclined block.
[0012] In one possible design, a fixed plate is fixedly installed inside the side groove, and limit shafts are fixedly installed on both sides of the top of the fixed plate. The L-shaped movable plate is slidably sleeved on the outer wall of the two limit shafts. A tension spring is sleeved on the outer wall of the limit shaft, and the two ends of the tension spring are respectively fixedly installed on the top inner wall of the side groove and the top of the L-shaped movable plate.
[0013] In one possible design, the mobile frame is U-shaped.
[0014] In one possible design, the top of the mobile frame has multiple upper placement slots, and the bottom inner wall of the mobile frame has multiple lower placement slots.
[0015] In one possible design, the bottom inner wall of the upper placement groove has a placement hole, and the bottom inner wall of the lower placement groove has a groove, with multiple grooves located directly below multiple placement holes.
[0016] In this application, during actual use, the corresponding biofilm test sample is added to a petri dish or reagent tube, followed by the addition of the corresponding test solution, ensuring that the test solution completely covers the test sample. The reagent tube is then inserted into the moving rack through the placement hole, with its bottom end placed inside the groove. The petri dish is placed directly in the upper or lower placement groove. Test samples from the same batch are tested at the same temperature, while samples from different testing times are placed in different moving racks for differentiation and easy retrieval. Specifically, the moving rack slides along the inclined block using the limiting groove at the bottom. Initially, the moving rack touches the inclined surface of the block, pushing the block downwards. When the inclined block moves into the slot, the compression spring will cause the inclined block to reset, moving one end of the inclined block into the slot and limiting the movement of the frame. This increases its stability inside and prevents other frames from moving when the frame is inserted or removed. When it is necessary to remove the test samples that have reached the corresponding time in the same batch, simply open the corresponding gate and move the L-shaped moving plate in the corresponding frame downwards. After one end of the L-shaped moving plate pushes the inclined block into the movement range of the limiting slot, the frame can be pulled out. Then, the experimenters can place the sample under a microscope to observe the inhibition of the biofilm. Staining agents can also be used to enhance the observation effect.
[0017] In this invention, the dental waterline biofilm inhibition test device, through a movable frame, can simultaneously place reagent tubes and culture dishes, so as to place and remove them at the same time, and facilitate the classification of different samples, thereby facilitating actual identification.
[0018] In this invention, the dental waterline biofilm inhibition test device, through a fixing mechanism, can limit the placement of the movable frame, thereby increasing its stability inside the constant temperature incubator. This ensures that when the constant temperature incubator is accidentally displaced, the movable frame inside can avoid shaking as much as possible, thus ensuring the accuracy of the test.
[0019] In this invention, by setting up multi-layer placement cavities and a sliding movable frame, space utilization is improved while facilitating the placement of petri dishes and reagent tubes. This not only allows multiple identical samples to be taken out and put in at the same time, but also makes it easier to distinguish different samples, thereby indirectly improving experimental efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main structure of the dental waterline biofilm inhibition test device proposed in this utility model;
[0021] Figure 2 This is a schematic diagram of the unfolded structure of the dental waterline biofilm inhibition test device proposed in this utility model;
[0022] Figure 3 This is a three-dimensional structural schematic diagram of the moving frame of the dental waterline biofilm inhibition test device proposed in this utility model;
[0023] Figure 4 This is a cross-sectional structural diagram of the fixed frame and the movable frame of the dental waterline biofilm inhibition test device proposed in this utility model;
[0024] Figure 5 This utility model Figure 4 Enlarged view of the structure of part A in the middle.
[0025] In the diagram: 1. Constant temperature incubator; 2. Door; 3. Fixing frame; 4. Placement cavity; 5. Moving frame; 6. Upper placement slot; 7. Placement hole; 8. Groove; 9. Lower placement slot; 10. Limiting slot; 11. Inclined block; 12. Slide groove; 13. Limiting rod; 14. Compression spring; 15. Fixing plate; 16. L-shaped moving plate; 17. Tension spring; 18. Limiting shaft; 19. Side groove; 20. Slot. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Example 1
[0028] Reference Figure 1-2 The experimental apparatus includes: a constant temperature incubator 1, with multiple hinged doors 2 on one side of the incubator 1. Inside the incubator 1, there is a rack for holding petri dishes and reagent tubes. The rack is specifically composed of a fixed frame 3, which is fixedly installed inside the incubator 1. The fixed frame 3 is divided into multiple layers of placement chambers 4 by partitions, and multiple movable racks 5 can be slidably installed within each layer of placement chamber 4. The movable racks 5 are used to hold petri dishes and reagent tubes.
[0029] Each layer of placement chamber 4 is matched with a corresponding door 2. When it is necessary to access a culture dish or reagent tube in a certain layer, the corresponding door 2 can be opened.
[0030] Reference Figure 3 The movable rack 5 is U-shaped, with multiple upper placement slots 6 and lower placement slots 9 on its top and bottom inner walls for placing petri dishes. The bottom inner wall of the upper placement slot 6 also has placement holes 7, and the bottom inner wall of the lower placement slot 9 has grooves 8 for placing reagent tubes.
[0031] Specifically, the corresponding biofilm test sample is added to a petri dish or reagent tube, followed by the addition of the corresponding test solution, ensuring that the test solution completely covers the test sample. Then, the reagent tube is inserted into the moving rack 5 through the placement hole 7, with its bottom end placed inside the groove 8. The petri dish is placed directly in the upper placement groove 6 or the lower placement groove 9. Test samples of the same batch are tested at the same temperature, but test samples with different test times are placed in different moving racks 5 for differentiation and easy retrieval. Labels can also be directly affixed to the corresponding moving racks 5 to help distinguish them.
[0032] This application can be used in the dental field, or in other fields where this application applies.
[0033] Example 2
[0034] refer to Figure 4-5 An improvement upon Example 1 is presented: a dental waterline biofilm inhibition testing device, applied in the dental field. To fix the position of the movable frame 5, a fixing mechanism is designed. This fixing mechanism is located inside the fixing frame 3, specifically including multiple sliding grooves 12 formed on the inner wall of the bottom of the placement cavity 4. An inclined block 11 is slidably disposed inside the sliding groove 12. A limiting groove 10 is formed at the bottom of the movable frame 5, and the inclined block 11 is located inside the limiting groove 10. Furthermore, a slot 20 is formed on one side of the top inner wall of the limiting groove 10. The slot 20 cooperates with the adjacent inclined block 11. When the inclined block 11 is fully slid into the limiting groove 10, it can be inserted into the slot 20 for fixation.
[0035] A limit rod 13 is also fixedly installed inside the slide groove 12. The inclined block 11 is slidably sleeved on the outer wall of the limit rod 13 to ensure that the inclined block 11 can only move in a specific direction. A compression spring 14 is also sleeved on the outer wall of the limit rod 13. The two ends of the compression spring 14 are respectively fixedly installed at the bottom of the inclined block 11 and the bottom inner wall of the slide groove 12 to provide a restoring force for the inclined block 11.
[0036] The fixing mechanism also includes a side groove 19 formed on one side of the movable frame 5, and the slot 20 is connected to the side groove 19. An L-shaped movable plate 16 is slidably disposed inside the side groove 19, and one end of the L-shaped movable plate 16 can slide into the interior of the slot 20 and cooperate with the inclined block 11. When it is necessary to unlock the movable frame 5, the L-shaped movable plate 16 can be pushed to push the inclined block 11 out of the slot 20.
[0037] A fixing plate 15 is also fixedly installed inside the side groove 19. Limiting shafts 18 are fixedly installed on both sides of the top of the fixing plate 15. The L-shaped moving plate 16 is slidably sleeved on the outer wall of the two limiting shafts 18 to ensure that the L-shaped moving plate 16 can only move in a specific direction. A tension spring 17 is also sleeved on the outer wall of the limiting shaft 18. The two ends of the tension spring 17 are respectively fixedly installed on the top inner wall of the side groove 19 and the top of the L-shaped moving plate 16 to provide a restoring force for the L-shaped moving plate 16.
[0038] Specifically, the movable frame 5 slides along the inclined block 11 through the limiting groove 10 at the bottom. Initially, the movable frame 5 will touch the inclined surface of the inclined block 11 and press the inclined block 11 downward. When the inclined block 11 moves into the slot 20, the compression spring 14 will drive the inclined block 11 to reset, moving one end of the inclined block 11 into the slot 20 and limiting the movable frame 5. This increases its stability inside and prevents other movable frames 5 from moving when the movable frame 5 is inserted or removed. When it is necessary to remove the test samples that have reached the corresponding time in the same batch, simply open the corresponding gate 2 and move the L-shaped movable plate 16 in the corresponding movable frame 5 downward. After one end of the L-shaped movable plate 16 pushes the inclined block 11 into the movement range of the limiting groove 10, the movable frame 5 can be pulled out. Subsequently, the experimenter can place the sample under a microscope to observe the inhibition of the biofilm. A staining agent can also be used to enhance the observation effect.
[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the constant temperature incubator 1 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0040] 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 dental waterline biofilm inhibition test device, characterized by, The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively. The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively. The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively. The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively.
2. The dental waterline biofilm inhibition test device of claim 1, wherein, The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively.
3. The dental waterline biofilm inhibition test device of claim 2, wherein, The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively.
4. The dental waterline biofilm inhibition test device of claim 3, wherein, The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively.
5. The dental waterline biofilm inhibition test device of claim 1, wherein, The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator (1), a plurality of baffle doors (2) are hingedly arranged on one side of the constant temperature incubator (1), a placing rack is arranged in the constant temperature incubator (1), the placing rack comprises a fixing frame (3) which is fixedly arranged in the constant temperature incubator (1), a plurality of moving frames (5) are slidably arranged in a plurality of placing cavities (4) which are arranged in the fixing frame (3) through a partition plate, and the plurality of placing cavities (4) are matched with the plurality of baffle doors (2) respectively.
6. The dental waterline biofilm inhibition test device of claim 5, wherein, 7. The dental waterline biofilm inhibition test device of claim 6, wherein,