Toxicity testing device for antibacterial phenolic moulding plastic

Abstract

The utility model relates to a toxicity testing device for antibacterial phenolic moulding plastics, which comprises a testing box, two testing cavities are symmetrically arranged in the testing box left and right, protective doors are hinged to the front sides of the two testing cavities, an upper clamp component is mounted in the upper side wall of each testing cavity, and a lower clamp component is mounted in the lower side wall of each testing cavity. A lower clamp assembly is mounted in the lower side wall of the test cavity; an ultraviolet lamp is mounted in the rear side wall of the test cavity; an air purification mechanism is mounted in the test box; a control screen used for controlling the ultraviolet lamps and the air purification mechanism is installed on the test box, and a technician can simulate different use environments at the same time by changing the irradiation intensity of the two ultraviolet lamps. Therefore, the content of poison gas released by the antibacterial phenolic moulding plastic sample to be tested under the irradiation of ultraviolet lamps with different intensities can be tested at the same time, so that the test efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to phenolic molding compounds, and in particular to a toxicity testing device for antibacterial phenolic molding compounds. Background Technology

[0002] Antimicrobial phenolic molding compound is a polymer material that combines the excellent properties of phenolic resin with antimicrobial functions. It is widely used in scenarios requiring hygiene protection or inhibition of microbial growth (such as medical supplies in hospitals and experimental supplies in laboratories). The difference between antimicrobial phenolic molding compound and ordinary phenolic molding compound is that antimicrobial agents (such as silver ions, copper ions, and organic antimicrobial agents) are added during the production process. In certain application scenarios (such as hospitals and biological laboratories), it is inevitable that antimicrobial phenolic molding compound products will be sterilized and disinfected by ultraviolet light after use. During the process of being irradiated by ultraviolet light, antimicrobial phenolic molding compound will degrade, volatilize, and release toxic substances. In order to fully ensure the safety of users, toxicity testing of antimicrobial phenolic molding compound is required before leaving the factory to ensure product quality. However, the existing testing equipment can only simulate a single use case at a time. To make the test results more accurate, multiple tests are required, resulting in low testing efficiency.

[0003] To address the above issues, we propose a toxicity testing device for antibacterial phenolic molding compounds. Utility Model Content

[0004] This invention proposes a toxicity testing device for antibacterial phenolic molding compound, which solves the aforementioned problems existing in the use of prior art.

[0005] The technical solution of this utility model is as follows: a toxicity testing device for antibacterial phenolic molding compound includes a test box, two test chambers are symmetrically opened on the left and right sides of the test box, and protective doors are hinged to the front of the two test chambers. An upper clamping assembly is installed in the upper side wall of the test chamber, and a lower clamping assembly is installed in the lower side wall of the test chamber.

[0006] An ultraviolet lamp is installed inside the rear wall of the test chamber;

[0007] An air purification mechanism is installed inside the test chamber;

[0008] The test chamber is equipped with a control panel for controlling the ultraviolet lamp and the air purification mechanism.

[0009] A further feature of this invention is that the upper clamp assembly includes an upper base;

[0010] Each of the test chambers is rotatably connected to an upper rotating shaft inside its upper side wall. An upper base is fixed to the lower end of the upper rotating shaft. A plate is provided below the upper base. Several sliding sleeves are fixed to the lower side of the upper base. Several sliding rods are fixed to the upper side of the plate. Each sliding rod is slidably connected to the sliding sleeve.

[0011] The upper fixed clamping plate is fixedly provided on the lower front side of the plate. The upper fixed clamping plate is symmetrically connected to the upper rotating screws, and the two upper rotating screws are threaded together to the upper moving clamping plate.

[0012] A further feature of this invention is that: a mounting frame is fixedly provided on the upper side of the test box, and the upper sides of the two upper rotating shafts are rotatably connected to the mounting frame; a motor for driving the upper rotating shafts is mounted on the mounting frame.

[0013] Both of the upper rotating shafts are fixed with synchronous pulleys, and the two synchronous pulleys are connected by a synchronous belt.

[0014] A further feature of this invention is that the lower clamp assembly includes a lower base;

[0015] The test chamber is rotatably connected to a lower rotating shaft inside its bottom wall. The lower base is fixed to the upper end of the lower rotating shaft. A lower fixed clamping plate is fixed to the upper front side of the lower base. Lower rotating screws are symmetrically rotatably connected to the lower fixed clamping plate. A lower moving clamping plate is threaded onto both lower rotating screws.

[0016] A further feature of this invention is that a toxic gas detector is installed on both the upper base and the lower base.

[0017] A further feature of this invention is that the air purification mechanism includes two purifiers, an installation cavity is provided on the lower side of the test chamber, the two purifiers are installed in the installation cavity, and an air extraction pipe extending into the test chamber on the upper side of each purifier is installed.

[0018] Each of the purifiers has an air supply pipe installed on its rear side, extending into the rear wall of the test chamber on the same side.

[0019] A further feature of this invention is that the protective door is equipped with UV-resistant glass.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] Technicians can simultaneously simulate different usage environments by changing the irradiation intensity of two ultraviolet lamps, thereby simultaneously testing the content of toxic gases released by antibacterial phenolic molding compound samples under ultraviolet lamp irradiation of different intensities, thus effectively improving testing efficiency.

[0022] After the test is completed, the air purifier cleans the toxic gas in the test chamber until the concentration of the toxic gas in the test chamber drops to a safe level, so that the technicians can take out the antibacterial phenolic molding compound sample to be tested and ensure the safety of the technicians' operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a front view schematic diagram of the structure within this utility model;

[0026] Figure 3 for Figure 1 A structural diagram after the protective door has been removed;

[0027] Figure 4 for Figure 3 A schematic diagram of the right-side structure inside.

[0028] The diagram is labeled as follows: 11. Test box; 12. Test chamber; 13. Upper clamp assembly; 14. Lower clamp assembly; 15. Ultraviolet lamp; 16. Protective door; 17. Control panel; 18. Upper base; 19. Upper rotating shaft; 20. Upper fixed clamping plate; 21. Upper rotating screw; 22. Upper moving clamping plate; 23. Lower base; 24. Lower rotating shaft; 25. Lower fixed clamping plate; 26. Lower rotating screw; 27. Lower moving clamping plate; 28. Mounting frame; 29. ​​Motor; 30. Synchronous pulley; 31. Synchronous belt; 32. Toxic gas detector; 33. Purifier; 34. Mounting chamber; 35. Extraction pipe; 36. Gas supply pipe; 37. Ultraviolet-proof glass; 39. Flat plate; 40. Sliding sleeve; 41. Sliding rod. Detailed Implementation

[0029] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The 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.

[0030] Example:

[0031] like Figures 1 to 4 As shown, a toxicity testing device for antibacterial phenolic molding compound includes a test chamber 11. Two test chambers 12 with forward-facing openings are symmetrically arranged inside the test chamber 11. Each test chamber 12 has a protective door 16 hinged to its front side. An ultraviolet-proof glass 37 is installed inside the protective door 16 to allow technicians to observe whether the surface properties of the antibacterial phenolic molding compound sample change during the testing process. An upper rotating shaft 19 is rotatably connected to the upper side wall of each test chamber 12. The lower end of the upper rotating shaft 19... An upper base 18 is fixedly provided at one end, and a flat plate 39 is provided below the upper base 18. Several sliding sleeves 40 are fixedly provided on the lower side of the upper base 18, and several sliding rods 41 are fixedly provided on the upper side of the flat plate 39. The sliding rods 41 are slidably connected to the sliding sleeves 40. An upper fixed clamping plate 20 is fixedly provided on the lower side of the front side of the flat plate 39. Upper rotating screws 21 are symmetrically rotatably connected to the upper fixed clamping plate 20. An upper moving clamping plate 22 is threadedly connected to the two upper rotating screws 21.

[0032] Furthermore, a lower rotating shaft 24 is rotatably connected to the bottom wall of the test chamber 12, and a lower base 23 is fixedly connected to the upper end of the lower rotating shaft 24. A lower fixing clamping plate 25 is fixedly provided on the upper side of the front side of the lower base 23. Lower rotating screws 26 are symmetrically rotatably connected to the lower fixing clamping plate 25, and a lower moving clamping plate 27 is threadedly connected to the two lower rotating screws 26.

[0033] Before starting the test, the technician first lifts the plate 39 upwards and places the lower side of the cut strip-shaped antibacterial phenolic molding compound sample (hereinafter referred to as "sample") between the lower fixed clamp 25 and the lower movable clamp 27, so that the front side of the lower side of the sample abuts against the rear side of the lower fixed clamp 25, and rotates the two lower rotating screws 26 to bring the lower movable clamp 27 closer to the sample until the lower movable clamp 27 presses against the rear side of the lower side of the sample to achieve the purpose of fixing the lower side of the sample.

[0034] Subsequently, the technician moves the plate 39 downwards so that the upper side of the sample is positioned between the upper fixed clamp 20 and the upper movable clamp 22, and the front side of the upper side of the sample abuts against the rear side of the upper fixed clamp 20. Then, the two upper rotating screws 21 are rotated to drive the upper movable clamp 22 closer to the sample until the upper movable clamp 22 presses against the rear side of the upper side of the sample, thereby fixing the upper side of the sample.

[0035] It should be noted that the sample in this embodiment is a rigid long plate. After the upper fixed clamping plate 20 and the upper movable clamping plate 22 clamp the upper side of the sample, the upper side of the sample abuts against the lower side of the plate 39, thereby indirectly limiting the sliding rod 41 so that it cannot drive the plate 39 to move up and down, so as to ensure the clamping stability of the upper fixed clamping plate 20 and the upper movable clamping plate 22 on the upper side of the sample.

[0036] Furthermore, a mounting bracket 28 is fixedly provided on the upper side of the test box 11, and the upper sides of the two upper rotating shafts 19 are rotatably connected to the mounting bracket 28. A motor 29 for driving the upper rotating shafts 19 is installed on the mounting bracket 28. Synchronous pulleys 30 are fixedly provided on both upper rotating shafts 19, and a synchronous belt 31 is connected between the two synchronous pulleys 30. When the motor 29 drives one of the upper rotating shafts 19 to rotate, the synchronous pulley 30 on the same side of the upper rotating shaft 19 drives the synchronous pulley 30 on the other side to rotate through the synchronous belt 31, so that the two upper rotating shafts 19 can rotate synchronously.

[0037] Furthermore, an ultraviolet lamp 15 is installed inside the rear wall of each of the test chambers 12, and a toxic gas detector 32 is installed on the upper base 18 and the lower base 23 inside each of the test chambers 12. After the technician fixes the sample, he closes the protective door 16 and turns on the ultraviolet lamp 15 to conduct the test. According to different test requirements, the technician can simulate different test environments to conduct the test.

[0038] Test Method 1: Technicians turn on the ultraviolet lamp 15 in only one side of the test chamber 12 and rotate the samples in both test chambers 12 at a uniform speed simultaneously. This allows the ultraviolet lamp 15 to uniformly irradiate the sample surface on the same side, providing a control group with another set of samples. During the irradiation process, the toxic gas detectors 32 in both test chambers 12 monitor the toxic gas concentration in real time, thereby comparing whether there is a significant difference in the toxic gas concentration released by the sample under ultraviolet irradiation and the sample without ultraviolet irradiation, so that technicians can determine the safety of the sample.

[0039] Test Method 2: Technicians turn on the ultraviolet lamps 15 in both test chambers 12 and irradiate the two samples uniformly with different irradiation powers. During the irradiation process, the toxic gas detectors 32 in the two test chambers 12 monitor the toxic gas concentration in real time, thereby comparing whether there is a significant difference in the toxic gas concentration released by the samples under different ultraviolet irradiation powers. This allows technicians to obtain more sample data and make a more accurate judgment on the safety of the samples.

[0040] In addition, an installation cavity 34 is provided on the lower side of the interior of the test chamber 11. Two purifiers 33 are symmetrically installed in the installation cavity 34. Each purifier 33 has an exhaust pipe 35 installed on its upper side that extends into the test chamber 12 on the same side, and an air supply pipe 36 installed on the rear side of each purifier 33 that extends into the test chamber 12 on the same side. After the test is completed, the purifiers 33 extract the toxic gas from the test chamber 12 and purify it. The purified air re-enters the test chamber 12 through the air supply pipe 36 until the concentration of toxic gas in the test chamber 12 is reduced to a safe value. Then, the technicians open the protective door 16 and take out the sample.

[0041] Furthermore, the test chamber 11 is equipped with a control panel 17 for controlling the ultraviolet lamp 15, the toxic gas detector 32, and the purifier 33, so that technicians can monitor the concentration of toxic gas in the test chamber 12 in real time.

[0042] It should be noted that the functions to be achieved by the ultraviolet lamp 15, the toxic gas detector 32, and the purifier 33 in this embodiment are supported by a large number of mature technologies. The essence of this utility model is to optimize and combine the existing hardware connection methods for specific application scenarios in order to solve the problem of how to test the difference in toxic gas concentration released by samples under different ultraviolet irradiation intensities (without changing the internal structure of the ultraviolet lamp 15, the toxic gas detector 32, and the purifier 33).

[0043] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 test device for toxicity of an antibacterial phenolic molding compound comprising a test chamber (11), characterized in that: The test chamber (11) has two test chambers (12) with their openings facing forward, which are symmetrically arranged on the left and right sides. Each of the two test chambers (12) is hinged with a protective door (16). An upper clamp assembly (13) is installed in the upper side wall of the test chamber (12), and a lower clamp assembly (14) is installed in the lower side wall of the test chamber (12). An ultraviolet lamp (15) is installed inside the rear wall of the test chamber (12). An air purification mechanism is installed inside the test box (11); The test box (11) is equipped with a control panel (17) for controlling the ultraviolet lamp (15) and the air purification mechanism.

2. A device for testing toxicity of an antibacterial phenolic molding compound according to claim 1, wherein: The upper clamp assembly (13) includes an upper base (18); Each of the test chambers (12) is rotatably connected to an upper rotating shaft (19) on its upper side wall. An upper base (18) is fixed to the lower end of the upper rotating shaft (19). A plate (39) is provided below the upper base (18). Several sliding sleeves (40) are fixed on the lower side of the upper base (18). Several sliding rods (41) are fixed on the upper side of the plate (39). Each sliding rod (41) is slidably connected to the corresponding sliding sleeve (40). The upper fixed clamping plate (20) is fixedly provided on the lower front side of the plate (39). The upper fixed clamping plate (20) is symmetrically connected to the upper rotating screw (21) in the left and right. The two upper rotating screws (21) are connected to the upper moving clamping plate (22) by a common thread.

3. A device for testing toxicity of an antibacterial phenolic molding compound according to claim 2, wherein: The test box (11) is fixedly provided with a mounting bracket (28) on the upper side, and the upper sides of the two upper rotating shafts (19) are rotatably connected to the mounting bracket (28). The mounting bracket (28) is equipped with a motor (29) for driving the upper rotating shafts (19). Both of the upper rotating shafts (19) are fixed with synchronous pulleys (30), and the two synchronous pulleys (30) are connected by a synchronous belt (31).

4. A device for testing toxicity of an antibacterial phenolic molding compound according to claim 2, wherein: The lower clamp assembly (14) includes a lower base (23); The test chamber (12) is rotatably connected to a lower rotating shaft (24) in the bottom wall. The lower base (23) is fixed to the upper end of the lower rotating shaft (24). The lower base (23) is fixed to a lower fixing plate (25) on the upper front side. The lower fixing plate (25) is symmetrically connected to a lower rotating screw (26) in the left and right sides. The two lower rotating screws (26) are threaded together to a lower moving clamp (27).

5. A device for testing toxicity of an antibacterial phenolic molding compound according to claim 4, wherein: Both the upper base (18) and the lower base (23) are equipped with toxic gas detectors (32).

6. A toxicity testing device for an antimicrobial phenolic molding compound as described in claim 1, wherein: The air purification mechanism includes two purifiers (33). The test box (11) has an installation cavity (34) on its lower side. The two purifiers (33) are installed in the installation cavity (34). Each purifier (33) has an exhaust pipe (35) that extends into the test cavity (12) on the same side. Each of the purifiers (33) has an air supply pipe (36) that extends into the rear wall of the test chamber (12) on the same side.

7. A device for testing toxicity of an antimicrobial phenolic molding compound according to claim 1, wherein: The protective door (16) is equipped with UV-resistant glass (37).

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