A detection with porous absorption tube fixing frame
By designing a bevel gear set driven porous absorption tube holder, the problem of cumbersome operation in the existing technology is solved, and efficient experimental operation of porous absorption tubes is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI ZHONGJIAN EVALUATION TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-02
Smart Images
Figure CN224308448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory supplies technology, specifically to a porous absorption tube holder for testing. Background Technology
[0002] Currently, in the fields of occupational health and environmental monitoring, U-shaped porous glass plate absorption tubes are widely used in gas sampling due to their high absorption efficiency. When collecting different gas samples, the corresponding absorbent liquid needs to be added to the U-shaped absorption tube, and gas sampling requires precise control over the volume of the absorbent liquid. The special design of the U-shaped absorption tube meets the requirements of gas sampling. However, during the analysis process, analysts need to remove the porous absorption tube and tilt it to add the experimental reagents, which is a relatively cumbersome and inefficient operation. Utility Model Content
[0003] This utility model provides a porous absorption tube holder for testing, the purpose of which is to solve the technical problem of the cumbersome use of porous absorption tube holders for testing in the experimental process in the prior art.
[0004] This utility model provides a multi-hole absorption tube holder for testing, including a base mounted on a test bench, multiple fixing blocks on the base, a support between adjacent fixing blocks, a bevel gear set at one bottom end of the support, a support rod at the other bottom end of the support, a first bearing at the end of the support rod away from the support, the first bearing being fixedly connected to the fixing block, a motor being fixedly connected to the bottom of the bevel gear set and disposed within the base, a second bearing being fixedly connected to the end of the bevel gear set away from the support and fixedly connected to the side surface of the fixing block; a rear baffle is provided on the rear side of the base, a vertical front baffle is provided on the front side of the base, and the rear baffle is an inclined baffle.
[0005] Furthermore, the bevel gear set includes a driven rod, one end of which is fixedly connected to a bracket, and the other end of which is fixedly connected to the inner ring of the second bearing. A first bevel gear and a second bevel gear are symmetrically fixedly connected to the driven rod, with the teeth of the first bevel gear and the second bevel gear arranged opposite to each other. A third bevel gear is arranged between the first bevel gear and the second bevel gear, and the third bevel gear is located at the output end of the motor. The first bevel gear and the second bevel gear are respectively meshed with the third bevel gear.
[0006] Furthermore, the third bevel gear is a semi-key gear.
[0007] The first bevel gear has the same circumference as the second bevel gear, and the tooth arc length of the third bevel gear is equal to 1 / 12 to 1 / 9 of the circumference of the first bevel gear or the second bevel gear.
[0008] Furthermore, the bracket includes a base, which is disposed between the support rod and the driven rod. A plurality of bracket upright plate assemblies are disposed on the base. Each bracket upright plate assembly includes two bracket upright plates that are vertically fixedly connected to the base. A first limiting plate is disposed in the lower half between the two bracket upright plates, and a second limiting plate is disposed in the upper half between the two bracket upright plates.
[0009] Furthermore, the first limiting plate is horizontally positioned, and the second limiting plate is inclined. The first limiting plate has a strip-shaped first limiting groove, and the second limiting plate has a second limiting groove, which matches the crown of the porous absorption tube.
[0010] Furthermore, the sum of the tilt angle between the second limiting plate and the test bench and the tilt angle of the rear baffle is 90°.
[0011] Furthermore, a third limiting groove is provided at one end of the fixed block movably connected to the support rod, and a through hole is provided at the center of the third limiting groove. The support rod passes through the through hole and is fixedly connected to the first bearing. An arc-shaped sliding groove is provided at the top of the third limiting groove. A rotating pin matching the third limiting groove is provided on the side of the base facing the third limiting groove. A slider is fixedly connected to the top of the rotating pin, and the slider is slidably disposed in the arc-shaped sliding groove.
[0012] This utility model has at least the following beneficial effects:
[0013] When the motor drives the third bevel gear to rotate, the third bevel gear meshes with the first or second bevel gear to complete the reciprocating rotation, which in turn drives the base fixedly connected to the driven rod. The base drives the support plate, the first limiting plate and the second limiting plate to rotate, so that the bevel gear set can achieve the rotation of the support at a limited angle, tilting the support to make the porous absorption tube on the support tilt, so as to facilitate the addition of reagents. After adding, the support is rotated back to the correct position. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a porous absorption tube holder for testing according to the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of a porous absorption tube holder for testing according to the present invention;
[0016] Figure 3 This is an exploded view of the third limiting groove of a porous absorption tube fixing frame for testing according to the present invention.
[0017] Figure 4 This is a schematic diagram of the structure of a porous absorption tube holder for testing according to the present invention;
[0018] In the diagram: 1. Base; 2. Fixing block; 3. Support rod; 4. First bearing; 5. Second bearing; 6. Motor; 7. Rear baffle; 8. Front baffle; 9. Driven rod; 10. First bevel gear; 11. Second bevel gear; 12. Third bevel gear; 13. Base; 14. Support plate; 15. First limiting plate; 16. Second limiting plate; 17. Third limiting groove; 18. Arc-shaped slide groove; 19. Rotating pin; 20. Slider. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] This utility model provides a porous absorption tube holder for testing.
[0021] See Figure 1 or Figure 2 The system includes a base 13, on the upper surface of which are provided a plurality of opposing support plates 14. A first limiting plate 15 is provided horizontally between the bottom of every two opposing support plates 14. Each first limiting plate 15 has a first limiting groove. A second limiting plate 16 is provided in the upper half between every two opposing support plates 14. Each second limiting plate 16 has a second limiting groove.
[0022] A driven rod 9 is provided on the side surface of the base 13. A first bevel gear 10 and a second bevel gear 11 are provided on the driven rod 9 and are arranged opposite to each other. The first bevel gear 10 and the second bevel gear 11 are arranged opposite to each other. A third bevel gear 12 is provided between the first bevel gear 10 and the second bevel gear 11. The third bevel gear 12 is arranged horizontally and is a semi-key gear. The motor 6 is located below the third spur gear, and the output end of the motor 6 is fixedly connected to the third bevel gear 12. A base 1 is located at the bottom of the base 13. The base 1 has a U-shaped structure, and fixing blocks 2 are located at the top of both ends of the base 1. A first bearing 4 and a second bearing 5 are located on the fixing blocks 2 at the top of both ends of the base 1. The first bearing 4 is connected to the end of the base 1 away from the driven rod 9 through a support rod 3. The outer ring of the first bearing 4 is fixedly connected to the base 1, and the inner ring of the first bearing 4 is fixedly connected to the support rod 3. The second bearing 5 is fixedly connected to the driven shaft. The outer ring of the second bearing 5 is fixedly connected to the base 1, and the inner ring of the second bearing 5 is fixedly connected to the driven shaft. The motor 6 is located inside the base 1. The first bevel gear 10, the second bevel gear 11, and the third bevel gear 12 are sector bevel gears.
[0023] The first limiting groove is used to limit the bottom of the porous absorption tube, and the second limiting groove is used to limit the crown of the porous absorption tube. When the motor 6 drives the third bevel gear 12 to rotate, the gear of the third bevel gear 12 meshes with the first bevel gear 10 or the second bevel gear 11 to complete the reciprocating rotation, thereby driving the base 13 fixedly connected to the driven rod 9. The base 13 drives the support plate 14, the first limiting plate 15 and the second limiting plate 16 to rotate.
[0024] In this embodiment of the invention, the first limiting plate 15 is horizontally positioned, and the second limiting plate 16 is inclined. The inclined second limiting plate 16 ensures that the absorption tube is tilted during addition, facilitating reagent addition. The lower side of the second limiting plate 16 is the front. The third bevel gear 12 rotates clockwise, first contacting the second bevel gear 11, causing the second limiting plate 16 to rotate in the opposite direction. When the teeth of the third bevel gear 12 disengage from the second bevel gear 11, the second limiting plate 16 stops rotating. The third bevel gear 12 continues to rotate clockwise and meshes with the first bevel gear 10. The third bevel gear 12 drives the first bevel gear 10 to rotate, and the first bevel gear 10 drives the first limiting plate 15 to rotate, reset, and then come to rest.
[0025] As an optional embodiment, the angle between each of the second limiting plates 16 and the lower first limiting plate 15 is preferably 30° to 45°. The inclined second limiting plates 16 can maintain their position when the support is vertical. After rotation, the second limiting plates 16 become horizontal, thereby improving the ability of the rotated second limiting plates 16 to fix the porous absorption tube.
[0026] In an embodiment of this utility model, the circumferential length of the teeth of the third bevel gear 12 is equal to 1 / 12 to 1 / 9 of the circumference of the first bevel gear 10 and the second bevel gear 11.
[0027] In an embodiment of this utility model, a front baffle 8 is provided on one side of the front of the base 1, and a rear baffle 7 is provided on the rear of the base 1. The front baffle 8 is vertically arranged, and the angle between the rear baffle 7 and the base 1 is 120° to 135°. The sum of the tilt angle between the second limiting plate 16 and the test bench and the tilt angle of the rear baffle 7 is slightly 90°.
[0028] See Figure 3 In this embodiment of the present invention, the first bearing 4 is disposed at the end of the fixing block 2 away from the base 1, and the end of the fixing block 2 near the base 1 is provided with a third limiting groove 17. The third limiting groove 17 is a circular limiting groove, and a through hole for the support rod 3 to pass through is provided at the center of the third limiting groove 17. An arc-shaped sliding groove 18 is provided at the top of the third limiting groove 17. A rotating pin 19 matching the third limiting groove 17 is provided on the side of the base 13 facing the fixing block 2. A slider 20 is fixedly connected to the top of the rotating pin 19. The slider 20 is slidably disposed in the arc-shaped sliding groove 18. The rotating pin 19 rotates in the third limiting groove 17, thereby driving the slider 20 to slide in the arc-shaped sliding groove. When the bracket rotates to the limit of the tilt angle, the slider 20 rotates to the end of the arc-shaped sliding groove 18. The slider 20 and the rear baffle 7 together limit the rotation angle of the bracket and prevent the bracket from tilting.
[0029] As an alternative embodiment, the arcuate groove 18 has an arc of 30° to 45°.
[0030] In one possible implementation for practical use, a battery is disposed on the lower surface of the base 1. The battery is connected to the motor 6, providing power to the motor 6 while also lowering the center of gravity, thus preventing the support from tipping over when tilted.
[0031] refer to Figure 4As an example of implementation, a single motor 6 can drive one or more pairs of opposing support plates 14 on a base 13 to rotate. Alternatively, multiple fixing blocks 2 can be provided on the upper surface of the base 1, with a base 1 and a bevel gear set between each two adjacent fixing blocks 2. Each support can be driven by driving each motor 6 and the bevel gear set respectively.
Claims
1. A detection-use multi-hole absorption tube fixing stand characterized by comprising: The system includes a base (1) set on a test bench, on which multiple fixing blocks (2) are provided. A bracket is provided between two adjacent fixing blocks (2). A bevel gear set is provided at one end of the bottom of the bracket, and a support rod (3) is provided at the other end of the bottom of the bracket. A first bearing (4) is provided at the end of the support rod (3) away from the bracket. The first bearing (4) is fixedly connected to the fixing block (2). A motor (6) is fixedly connected to the bottom of the bevel gear set. The motor (6) is set in the base (1). A second bearing (5) is fixedly connected at the end of the bevel gear set away from the bracket. The second bearing (5) is fixedly connected to the side surface of the fixing block (2). A rear baffle (7) is provided on the rear side of the base (1), and a vertical front baffle (8) is provided on the front side of the base (1). The rear baffle (7) is an inclined baffle.
2. The porous absorption tube holder for detection according to claim 1, wherein The bevel gear set includes a driven rod (9), one end of which is fixedly connected to a bracket, and the other end of which is fixedly connected to the inner ring of the second bearing (5). A first bevel gear (10) and a second bevel gear (11) are symmetrically fixedly connected on the driven rod (9). The teeth of the first bevel gear (10) and the second bevel gear (11) are arranged opposite to each other. A third bevel gear (12) is arranged between the first bevel gear (10) and the second bevel gear (11). The third bevel gear (12) is located at the output end of the motor (6). The first bevel gear (10) and the second bevel gear (11) are respectively meshed with the third bevel gear (12).
3. The porous absorption tube holder for detection according to claim 2, wherein The third bevel gear (12) is a semi-key gear.
4. The porous absorption tube holder for detection according to claim 3, wherein The first bevel gear (10) has the same circumference as the second bevel gear (11), and the tooth arc length of the third bevel gear (12) is equal to 1 / 12 to 1 / 9 of the circumference of the first bevel gear (10) or the second bevel gear (11).
5. The porous absorption tube holder for detection according to claim 1, wherein The bracket includes a base (13), which is disposed between the support rod (3) and the driven rod (9). The base (13) is provided with a plurality of bracket upright plate groups. Each bracket upright plate group includes two bracket upright plates (14) that are vertically fixedly connected to the base (13). A first limiting plate (15) is provided in the lower half between the two bracket upright plates (14), and a second limiting plate (16) is provided in the upper half between the two bracket upright plates (14).
6. The porous absorption tube holder for detection according to claim 5, wherein The first limiting plate (15) is set horizontally, and the second limiting plate (16) is set at an angle. The first limiting plate (15) has a strip-shaped first limiting groove, and the second limiting plate (16) has a second limiting groove. The second limiting groove matches the crown of the porous absorption tube.
7. A holder for a porous absorption tube for detection according to claim 6, characterized in that The sum of the tilt angle between the second limiting plate (16) and the test bench and the tilt angle of the rear baffle (7) is 90°.
8. The porous absorption tube holder for detection according to claim 5, wherein The fixed block (2) movably connects one end of the supporting rod (3) and is provided with a third limiting slot (17), a through hole is arranged at the center of the third limiting slot (17), the supporting rod (3) passes through the through hole and is fixedly connected with the first bearing (4); an arc-shaped sliding slot (18) is arranged at the top of the third limiting slot (17); a rotating pin (19) matched with the third limiting slot (17) is arranged on the side of the base (13) facing the third limiting slot (17), the top of the rotating pin (19) is fixedly connected with a sliding block (20), and the sliding block (20) is slidingly arranged in the arc-shaped sliding slot (18).