A drug stability test chamber with smooth air intake

Abstract

The utility model belongs to the technical field of drug stability test chambers, specifically a drug stability test chamber with smooth air intake, including a chamber and a worm gear, a heating tube and a humidifier are installed inside the chamber, a blower is installed on one side of the chamber, and an exhaust fan is installed on the side of the chamber away from the blower. The bottom of the blower is connected with an air inlet pipe, the outside of the air inlet pipe is connected to the chamber through, the top of the exhaust fan is connected with an air outlet pipe, and multiple groups of through holes are provided on the outside of the air inlet pipe and the air outlet pipe. The utility model can clean the dust attached to the filter net, so that the utility model can smoothly intake air.

Description

Technical Field

[0001] The utility model belongs to the technical field of drug stability test boxes, in particular to a drug stability test box with smooth air intake. Background Art

[0002] The stability of a drug refers specifically to its ability to maintain its physical, chemical and biological properties. If the stability of a drug is poor and degradation occurs, causing quality changes, it may not only reduce the efficacy of the drug, but also the generated impurities may have significant toxic side effects, affecting the safety and effectiveness of the drug. Therefore, it is necessary to place the container containing the drug in a test chamber for stability testing.

[0003] When conducting stability tests on drugs, they need to be sent to the stability test chamber. When conducting tests on existing drug stability test chambers, the interior needs to be ventilated by a fan so that the air inside the test chamber can circulate with the outside. In order to prevent external dust from entering the test chamber, a filter needs to be installed at the air inlet. However, a large amount of dust will accumulate on the filter after long-term use, affecting the air intake of the test chamber. Summary of the invention

[0004] The utility model aims to provide a medicine stability test box with smooth air intake, so as to solve the problem that the existing medicine stability test box proposed in the above background technology is not convenient for smooth air intake.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a drug stability test box with smooth air intake, comprising a box body and a worm gear, a heating tube and a humidifier are installed inside the box body, and a blower is installed on one side of the box body.

[0006] An exhaust fan is installed on one side of the box body away from the air supply fan.

[0007] Preferably, the bottom of the blower is connected to an air inlet pipe, the outer side of the air inlet pipe is connected to the box body, the top of the exhaust fan is connected to an air outlet pipe, and multiple groups of through holes are provided on the outer sides of the air inlet pipe and the air outlet pipe.

[0008] Preferably, a filter is fixedly connected to the air inlet at the bottom of the blower, a motor is installed on one side of the blower, a first synchronous wheel is fixedly connected to the output end of the motor, and a synchronous belt is sleeved on the outer side of the first synchronous wheel.

[0009] Preferably, a second synchronous wheel is sleeved on one side of the synchronous belt, a worm is fixedly connected to one side of the second synchronous wheel, one end of the worm is movably connected to the box through a bearing, and the outer side of the worm is meshingly connected to a worm wheel.

[0010] Preferably, the top of the worm gear is fixedly connected to a connecting rod, the top of the connecting rod is fixedly connected to a cleaning brush, the bottom of the worm gear is movably connected to a fixing block via a rotating shaft, and one side of the fixing block is fixedly connected to the box.

[0011] Preferably, a threaded rod is movably connected to the bottom of the box body through a bearing, a connecting frame is threadedly connected to the outer side of the threaded rod, and a sliding groove for the sliding rod to slide is provided on the top of the connecting frame.

[0012] Preferably, one end of the slide rod is fixedly connected to the box body, a toggle groove for the protrusion to slide is provided inside the connecting frame, and a layer plate is fixedly connected to one side of the protrusion.

[0013] Preferably, a through groove for sliding of a limiting rod is provided inside the layer plate, two ends of the limiting rod are fixedly connected to the box body, and a movable groove for sliding of a connecting frame is provided at the bottom of the box body.

[0014] Compared with the prior art, the beneficial effect of the drug stability test box with smooth air intake is: when the motor drives the impeller in the blower to rotate, the synchronous wheel group will also rotate, and the synchronous wheel group can drive the worm and the worm wheel to engage, so that the cleaning brush can rotate, and the dust attached to the filter net can be cleaned. By rotating the threaded rod and the connecting frame for threaded transmission, the connecting frame can move the convex layer plate by toggling the toggle groove, and the upper and lower groups of layer plates will move toward the layer plate in the center fixed position. At this time, the space at the bottom and top layers in the box will be enlarged, and larger drug containers can be placed therein.

[0015] 1. When conducting a stability test on drugs, they need to be sent to the stability test box. In order to prevent the filter at the air inlet of the blower from being blocked, a cleaning brush is arranged at the bottom of the filter. When the motor drives the impeller in the blower to rotate, the first synchronous wheel will also rotate. The first synchronous wheel can drive the second synchronous wheel to rotate through the synchronous belt. The second synchronous wheel can drive the worm and the worm wheel to engage. The worm wheel can drive the cleaning brush to rotate. When the cleaning brush rotates, it will contact the filter to clean the dust attached to the filter, so that the utility model can smoothly take in air, and the wind can evenly enter the box through the multiple groups of through holes on the outside of the air inlet pipe.

[0016] 2. When conducting a stability test on drugs, they need to be sent to the stability test box. When placing larger drug containers, the spacing between the shelves needs to be adjusted. The threaded rod and the connecting frame are threadedly driven, and the connecting frame can be limited and guided by the sliding rod. When the connecting frame moves, it will move the protrusion through the internal inclined toggle groove, and the protrusion can drive the shelf to slide on the outside of the limit rod. Since the inclined toggle groove is symmetrically arranged in two groups, and the middle toggle groove is straight, the upper and lower groups of shelf plates can be moved in relative directions and approach the shelf plates in the center fixed position. At this time, the space at the bottom and top layers in the box will be enlarged, and larger drug containers can be placed therein, so that the spacing between the shelves in the drug stability test box can be adjusted to accommodate drug containers of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a schematic diagram of the main internal three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the air blower of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the connecting frame of the utility model.

[0022] In the figure: 1. box body; 2. heating tube; 3. humidifier; 4. air supply fan; 5. exhaust fan; 6. air inlet pipe; 7. air outlet pipe; 8. filter; 9. first synchronous wheel; 10. synchronous belt; 11. second synchronous wheel; 12. worm; 13. worm wheel; 14. connecting rod; 15. cleaning brush; 16. fixing block; 17. threaded rod; 18. connecting frame; 19. sliding rod; 20. bump; 21. toggle slot; 22. shelf; 23. limit rod; 24. motor. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 3 The utility model provides a technical solution: a drug stability test box with smooth air intake, comprising a box body 1 and a worm gear 13, a heating tube 2 and a humidifier 3 are installed inside the box body 1, and a blower 4 is installed on one side of the box body 1.

[0025] An exhaust fan 5 is installed on the side of the box body 1 away from the air supply fan 4; an air inlet pipe 6 is connected to the bottom of the air supply fan 4, and the outer side of the air inlet pipe 6 is connected to the box body 1; an air outlet pipe 7 is connected to the top of the exhaust fan 5, and multiple groups of through holes are provided on the outer sides of the air inlet pipe 6 and the air outlet pipe 7; a filter screen 8 is fixedly connected to the air inlet at the bottom of the air supply fan 4, and a motor 24 is installed on one side of the air supply fan 4, and a first synchronous wheel 9 is fixedly connected to the output end of the motor 24, and a synchronous belt 10 is sleeved on the outer side of the first synchronous wheel 9; the synchronous belt 10 A second synchronous wheel 11 is sleeved on one side, a worm 12 is fixedly connected to one side of the second synchronous wheel 11, one end of the worm 12 is movably connected to the housing 1 through a bearing, and the outer side of the worm 12 is meshingly connected to a worm wheel 13; a connecting rod 14 is fixedly connected to the top of the worm wheel 13, a cleaning brush 15 is fixedly connected to the top of the connecting rod 14, and a fixed block 16 is movably connected to the bottom of the worm wheel 13 through a rotating shaft, one side of the fixed block 16 is fixedly connected to the housing 1, and the worm 12 and the worm wheel 13 form a meshing transmission structure.

[0026] During specific implementation, when conducting a stability test on the medicine, it is added into the stability test box, and a cleaning brush 15 is arranged at the bottom of the filter 8 to prevent the filter 8 at the air inlet of the blower 4 from being blocked. The motor 24 is working, and the output end of the motor 24 drives the impeller in the blower 4 to rotate, thereby driving the first synchronous wheel 9 to rotate. The first synchronous wheel 9 drives the second synchronous wheel 1 to rotate through the synchronous belt 10, thereby driving the worm 12 to mesh with the worm wheel 13, and the worm wheel 13 drives the cleaning brush 15 to rotate. When the cleaning brush 15 rotates, it will contact with the filter 8 to clean the dust attached to the filter 8. Since the transmission efficiency of the worm 12 and the worm wheel 13 is low, the connecting rod 14 can be decelerated to prevent the cleaning brush 15 from generating large friction with the filter 8 when rotating rapidly, causing serious wear on the filter 8 and the cleaning brush 15, so that the utility model can smoothly intake air, and the wind can evenly enter the box body 1 through the multiple groups of through holes on the outside of the air inlet pipe 6.

[0027] See also Figure 1 and Figure 4 The bottom of the box body 1 is movably connected with a threaded rod 17 through a bearing, the outer side of the threaded rod 17 is threadedly connected with a connecting frame 18, and the top of the connecting frame 18 is provided with a sliding groove for the sliding rod 19 to slide; one end of the sliding rod 19 is fixedly connected to the box body 1, and the interior of the connecting frame 18 is provided with a toggle groove 21 for the sliding of the protrusion 20, and one side of the protrusion 20 is fixedly connected with a layer plate 22; the interior of the layer plate 22 is provided with a through groove for the sliding of a limiting rod 23, and both ends of the limiting rod 23 are fixedly connected to the box body 1, and the bottom of the box body 1 is provided with a moving groove for the sliding of the connecting frame 18, the layer plate 22 and the limiting rod 23 constitute a sliding structure, and the threaded rod 17 and the connecting frame 18 constitute a threaded transmission structure.

[0028] In specific implementation, when conducting a stability test on drugs, the drugs are added to the stability test box. When placing a larger drug container, the spacing of the layer plates 22 needs to be adjusted. The threaded rod 17 and the connecting frame 18 are threaded to drive the sliding rod 19 pair. The connecting frame 18 performs a limit guide. When the connecting frame 18 moves, it will move the protrusion 20 through the internal inclined toggle groove 21. The protrusion 20 drives the layer plates 22 to slide on the outside of the limit rod 23. Since the inclined toggle groove 21 is symmetrically arranged with two groups, The middle toggle groove 21 is straight, so the upper and lower groups of layer plates 22 can be moved in relative directions and approach the layer plates 22 at the central fixed position, thereby expanding the space between the bottom and top layers of the box body 1, and larger medicine containers can be placed therein; after the adjustment is completed, the threaded rod 17 is loosened, and the threaded rod 17 will self-lock with the connecting frame 18, so that the positions of the connecting frame 18 and the layer plates 22 are fixed, thereby facilitating the adjustment of the spacing between the layer plates 22 of the utility model to accommodate medicine containers of different sizes.

[0029] To sum up: when using a drug stability test box with smooth air inlet, first place the container containing the drug on the shelf 22 inside the box 1, and then close the door. By starting the heating tube 2, the temperature inside the box 1 can be increased to test the stability of the drug in a high temperature environment. The humidifier 3 can increase the humidity in the box 1 to perform a humidity test on the drug. This is the feature of the drug stability test box with smooth air inlet. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drug stability test chamber with smooth air intake, comprising a chamber (1) and a worm gear (13), characterized in that: A heating tube (2) and a humidifier (3) are installed inside the box (1), and a blower (4) is installed on one side of the box (1). An exhaust fan (5) is installed on the side of the box (1) away from the air supply fan (4); The bottom of the air supply fan (4) is connected to an air inlet pipe (6), the outer side of the air inlet pipe (6) is connected to the box body (1), and the top of the exhaust fan (5) is connected to an air outlet pipe (7), and the outer sides of the air inlet pipe (6) and the air outlet pipe (7) are provided with multiple groups of through holes; A filter screen (8) is fixedly connected to the air inlet at the bottom of the blower (4); a motor (24) is installed on one side of the blower (4); a first synchronous wheel (9) is fixedly connected to the output end of the motor (24); and a synchronous belt (10) is sleeved on the outer side of the first synchronous wheel (9); A second synchronous wheel (11) is sleeved on one side of the synchronous belt (10), a worm (12) is fixedly connected to one side of the second synchronous wheel (11), one end of the worm (12) is movably connected to the housing (1) via a bearing, and the outer side of the worm (12) is meshingly connected to a worm wheel (13); The top of the worm gear (13) is fixedly connected to a connecting rod (14), the top of the connecting rod (14) is fixedly connected to a cleaning brush (15), the bottom of the worm gear (13) is movably connected to a fixing block (16) via a rotating shaft, and one side of the fixing block (16) is fixedly connected to the box body (1).

2. A drug stability test chamber with smooth air intake according to claim 1, characterized in that: The bottom of the box body (1) is movably connected to a threaded rod (17) via a bearing, the outer side of the threaded rod (17) is threadedly connected to a connecting frame (18), and the top of the connecting frame (18) is provided with a sliding groove for the sliding rod (19) to slide.

3. A drug stability test chamber with smooth air intake according to claim 2, characterized in that: One end of the slide rod (19) is fixedly connected to the box body (1), and a toggle groove (21) for the protrusion (20) to slide is provided inside the connecting frame (18), and a layer plate (22) is fixedly connected to one side of the protrusion (20).

4. A drug stability test chamber with smooth air intake according to claim 3, characterized in that: A through slot for the limiting rod (23) to slide is provided inside the layer plate (22), two ends of the limiting rod (23) are fixedly connected to the box body (1), and a movable slot for the connecting frame (18) to slide is provided at the bottom of the box body (1).

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