Supporting mechanism assembly of solid-phase extraction column

Abstract

The utility model discloses a supporting mechanism assembly of a solid phase extraction column, which relates to the technical field of solid phase extraction and comprises two device bottom plates, hollow supporting columns are fixedly mounted at the tops of the two device bottom plates, and telescopic moving columns are slidably sleeved in the two hollow supporting columns. When the adjusting knob is rotated, the hexagonal connecting rod, the first bevel gear, the connecting rotating rod, the second bevel gear, the two-way screw rod and the moving block drive the two supporting plates to move towards each other or away from each other, so that solid-phase extraction columns of different models can be adaptively supported by adjusting the distance between the two supporting plates; meanwhile, through matched arrangement of a mounting cross rod, a fixed convex block, an adjusting insertion rod, an adjusting insertion hole, a control pull block, a reset spring and a connecting pull rope, a telescopic moving column can be fixed or loosened, so that solid-phase extraction columns with different lengths can be adaptively used by adjusting the height of a supporting plate up and down, the application range of the device is effectively widened, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of solid phase extraction, in particular to a supporting mechanism component of a solid phase extraction column. Background Art

[0002] Solid phase extraction column is a sample pretreatment device developed from chromatography column for extraction, separation and concentration. It is mainly used for sample pretreatment of target compounds in various foods, agricultural and livestock products, environmental samples and biological samples. In the process of using solid phase extraction column, support mechanism components are usually used to support the solid phase extraction column.

[0003] The patent with publication number CN215585521U in the prior art discloses a solid phase extraction column and a support frame assembly, which forms a stable structure by setting a ring groove and a rubber ring on the top of the solid phase extraction column, and the structure is an elastic structure, which can be adaptively adjusted according to solid phase extraction columns of different sizes, solving the problem of poor stability of solid phase extraction columns in the prior art during installation and use. However, during use, the size of the solid phase extraction column socket on the top plate of the support frame is fixed and cannot be adjusted, which will result in limited solid phase extraction column models applicable to the support frame, and cannot be adapted to support solid phase extraction columns of different models, and the scope of application is small. Therefore, the present application discloses a support mechanism assembly for a solid phase extraction column to meet people's needs. Utility Model Content

[0004] The purpose of the present application is to provide a support mechanism assembly for a solid phase extraction column to solve the problem in the above background technology that the support frame cannot be adapted to support solid phase extraction columns of different models and has a small scope of application.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a support mechanism assembly for a solid phase extraction column, comprising two device bottom plates, the tops of the two device bottom plates are fixedly mounted with hollow support columns, telescopic columns are slidably sleeved in the two hollow support columns, height adjustment units for fixing the telescopic columns are arranged on the hollow support columns, the tops of the two telescopic columns are commonly fixedly mounted with hollow mounting columns, the sides of the hollow mounting columns are fixedly mounted with two fixing frames, the inner walls of the sides of the two fixing frames are rotatably mounted with bidirectional screws, two moving blocks are threadedly sleeved on the two bidirectional screws, and each of the two moving blocks has two fixing frames fixedly mounted on the sides of the two fixing frames, and two moving blocks are threadedly sleeved on the two bidirectional screws. The sides of the two corresponding moving blocks that are close to each other are commonly fixedly installed with a support plate, and the sides of the two support plates that are close to each other are evenly provided with a plurality of placement grooves, one end of the two bidirectional screw rods extends into the hollow mounting column, and a synchronous transmission unit for making the two bidirectional screw rods rotate synchronously is arranged in the hollow mounting column, the other end of one of the bidirectional screw rods extends outside the fixed frame and is fixedly installed with a hexagonal connecting rod, an adjusting knob is slidably sleeved on the hexagonal connecting rod, a blocking plate is fixedly installed on the end of the hexagonal connecting rod, and a locking unit for fixing the adjusting knob is arranged on the fixed frame.

[0006] Preferably, the synchronous transmission unit includes a connecting rotating rod rotatably mounted on the inner wall of the side portion of the hollow mounting column, one end of the two bidirectional screw rods are fixedly mounted with a first bevel gear, and two second bevel gears are fixedly sleeved on the connecting rotating rod, and the two first bevel gears are respectively meshed with the two second bevel gears.

[0007] Preferably, the locking unit includes two locking rods fixedly mounted on the side of the fixing frame, a plurality of locking holes are evenly arranged on the side of the adjusting knob, the ends of the two locking rods extend into two of the locking holes respectively, and the blocking piece is provided with an elastic squeezing element for squeezing the adjusting knob for automatic reset.

[0008] Preferably, the elastic extrusion element comprises an extrusion spring sleeved on the hexagonal connecting rod, and two ends of the extrusion spring are respectively fixedly mounted on the side of the adjusting knob and the blocking plate.

[0009] Preferably, the height adjustment unit includes a mounting cross bar fixedly mounted on the sides of the two hollow support columns close to each other, two fixing protrusions are fixedly mounted on the top of the mounting cross bar, horizontal sliding holes are opened on the sides of the fixing protrusions, and an adjusting rod is slidably mounted in the horizontal sliding hole, a rod sliding hole is opened on the side of the hollow support column, and a plurality of adjusting holes are evenly opened on the side of the telescopic shift column, one end of the adjusting rod passes through the rod sliding hole and extends into one of the adjusting holes, a control pull block is fixedly mounted on the other end of the adjusting rod, and an elastic reset element is installed on the adjusting rod.

[0010] Preferably, the elastic reset element comprises a convex piece fixedly sleeved on the adjusting rod, the adjusting rod is sleeved with a reset spring, and two ends of the reset spring are respectively fixedly mounted on the fixed protrusion and the side of the convex piece.

[0011] Preferably, a connecting rope is fixedly installed on the sides of the two control pull blocks that are close to each other.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. The utility model has a reasonable structure. When the adjusting knob is turned, the two bidirectional screws will rotate synchronously through the hexagonal connecting rod, the first bevel gear, the connecting rod and the second bevel gear. The rotation of the bidirectional screw will drive the two support plates to move toward or away from each other through the moving block, thereby achieving the purpose of adapting and supporting different types of solid phase extraction columns by adjusting the distance between the two support plates, thereby improving the application range of the device, and the operation is simple and convenient, and the practicability is good;

[0014] 2. In the utility model, when the adjusting knob is pulled until the locking socket and the locking rod are disengaged, the adjusting knob can be unlocked. When the adjusting knob is released, the elastic force of the extrusion spring will squeeze and push the adjusting knob to automatically reset, so that the locking rod will automatically insert into the locking socket, and the adjusting knob will be locked and cannot be rotated. Therefore, the distance between the two support plates can be effectively reduced due to the accidental touching of the adjusting knob during use, and the stability is good during use;

[0015] 3. In the utility model, when the connecting rope is pulled, the adjusting rod will be moved out of the adjusting socket through the control pull block to loosen the telescopic column. When the connecting rope is loosened, the adjusting rod will be automatically moved into the adjusting socket under the elastic force of the reset spring to fix the telescopic column. This achieves the purpose of enabling the device to adapt to solid phase extraction columns of different lengths by adjusting the height of the support plate up and down, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the partial cross-section structure of the hollow installation column and the fixing frame in the embodiment of the present application;

[0019] Figure 3 It is a partially enlarged structural schematic diagram of the locking unit in the embodiment of the present application;

[0020] Figure 4 It is a partially enlarged structural schematic diagram of the height adjustment unit in the embodiment of the present application.

[0021] In the figure: 1. Device base plate; 2. Hollow support column; 3. Telescopic shift column; 4. Hollow mounting column; 5. Fixed frame; 6. Bidirectional screw rod; 7. Moving block; 8. Support plate; 9. Hexagonal connecting rod; 10. Adjustment knob; 11. Blocking plate; 12. Connecting rotating rod; 13. First bevel gear; 14. Second bevel gear; 15. Locking plug rod; 16. Extrusion spring; 17. Mounting cross bar; 18. Fixed protrusion; 19. Adjustment plug rod; 20. Control pull block; 21. Reset spring; 22. Connecting pull rope. DETAILED DESCRIPTION

[0022] 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.

[0023] Example: Reference Figure 1-Figure 4The support mechanism assembly of a solid phase extraction column shown in the figure comprises two device bottom plates 1, the tops of the two device bottom plates 1 are fixedly mounted with hollow support columns 2, the two hollow support columns 2 are slidably sleeved with telescopic shift columns 3, the hollow support columns 2 are provided with height adjustment units for fixing the telescopic shift columns 3, the tops of the two telescopic shift columns 3 are commonly fixedly mounted with hollow mounting columns 4, the sides of the hollow mounting columns 4 are fixedly mounted with two fixing frames 5, the side inner walls of the two fixing frames 5 are rotatably mounted with bidirectional screw rods 6, the two bidirectional screw rods 6 are threadedly sleeved with two moving blocks 7, and each two corresponding moving blocks 7 are screwed together. The sides of the moving blocks 7 that are close to each other are commonly fixed with support plates 8, and the sides of the two support plates 8 that are close to each other are evenly provided with multiple placement grooves. One end of the two bidirectional screw rods 6 extends into the hollow mounting column 4, and a synchronous transmission unit for making the two bidirectional screw rods 6 rotate synchronously is arranged in the hollow mounting column 4. The other end of one of the bidirectional screw rods 6 extends to the outside of the fixed frame 5 and is fixedly installed with a hexagonal connecting rod 9, and an adjusting knob 10 is slidably sleeved on the hexagonal connecting rod 9, and a blocking piece 11 is fixedly installed on the end of the hexagonal connecting rod 9, and a locking unit for fixing the adjusting knob 10 is arranged on the fixed frame 5.

[0024] By means of the above structure, when the adjusting knob 10 is rotated, one of the bidirectional screws 6 will be driven to rotate through the hexagonal connecting rod 9, and under the action of the synchronous transmission unit, the other bidirectional screw 6 will be driven to rotate synchronously, and the rotation of the bidirectional screw 6 will drive the two support plates 8 to move toward or away from each other through the moving block 7, thereby achieving the purpose of adapting and supporting different types of solid phase extraction columns by adjusting the distance between the two support plates 8, thereby improving the application range of the device, and the operation is simple and convenient, and the practicability is good.

[0025] As a preferred implementation of this embodiment, the synchronous transmission unit includes a connecting rod 12 rotatably mounted on the inner wall of the side of the hollow mounting column 4, one end of each of the two bidirectional screws 6 is fixedly mounted with a first bevel gear 13, two second bevel gears 14 are fixedly sleeved on the connecting rod 12, and the two first bevel gears 13 are respectively meshed with the two second bevel gears 14. The advantage of this arrangement is that when one of the bidirectional screws 6 rotates, it will drive one of the first bevel gears 13 to rotate. At this time, under the joint action of the connecting rod 12 and the second bevel gear 14, the other first bevel gear 13 and the other bidirectional screw 6 will be driven to rotate together, thereby achieving the purpose of making the two bidirectional screws 6 rotate synchronously.

[0026] As a preferred implementation of this embodiment, the locking unit includes two locking rods 15 fixedly mounted on the side of the fixing frame 5, and a plurality of locking holes are evenly opened on the side of the adjusting knob 10. The ends of the two locking rods 15 extend into two of the locking holes respectively, and the blocking sheet 11 is provided with an elastic squeezing element for squeezing the adjusting knob 10 to automatically reset. The advantage of such a setting is that when the adjusting knob 10 is pulled until the locking hole is separated from the locking rod 15, the adjusting knob 10 can be unlocked, and when the adjusting knob 10 is pushed until the locking rod 15 is inserted into the locking hole, the adjustable knob 10 is locked and cannot be rotated, thereby effectively reducing the situation in which the distance between the two support plates 8 changes due to accidentally touching the adjusting knob 10 during use, and having good stability during use.

[0027] In this embodiment, the elastic extrusion element includes an extrusion spring 16 sleeved on the hexagonal connecting rod 9, and the two ends of the extrusion spring 16 are respectively fixedly mounted on the side of the adjusting knob 10 and the blocking sheet 11. The advantage of this arrangement is that when the adjusting knob 10 is released, the elastic force of the extrusion spring 16 will squeeze and push the adjusting knob 10 to automatically reset, and then the locking rod 15 can be automatically inserted into the locking hole, so that the adjusting knob 10 is always locked and cannot be rotated.

[0028] As a preferred implementation of this embodiment, the height adjustment unit includes a mounting cross bar 17 fixedly mounted on the sides of the two hollow support columns 2 close to each other, two fixed protrusions 18 fixedly mounted on the top of the mounting cross bar 17, a horizontal sliding hole is provided on the side of the fixed protrusion 18, an adjustment plug rod 19 is slidably mounted in the horizontal sliding hole, a plug rod sliding hole is provided on the side of the hollow support column 2, and a plurality of adjustment plug holes are evenly provided on the side of the telescopic displacement column 3, one end of the adjustment plug rod 19 passes through the plug rod sliding hole and extends into one of the adjustment plug holes, a control pull block 20 is fixedly mounted on the other end of the adjustment plug rod 19, and an elastic reset element is mounted on the adjustment plug rod 19. The advantage of such a setting is that when the control pull block 20 is moved, the adjustment plug rod 19 will be driven to move in or out of the adjustment plug hole, thereby fixing or loosening the telescopic displacement column 3, and when the telescopic displacement column 3 is in a loose state, the height of the support plate 8 can be adjusted up and down, so that the device can be adapted to solid phase extraction columns of different lengths, and has a wider range of applications.

[0029] In this embodiment, the elastic reset element includes a convex piece fixedly sleeved on the adjustment plug rod 19, the convex piece is located between the hollow support column 2 and the fixed protrusion 18, and a reset spring 21 is sleeved on the adjustment plug rod 19, and the two ends of the reset spring 21 are respectively fixedly mounted on the fixed protrusion 18 and the side of the convex piece. The advantage of this arrangement is that when the control pull block 20 is released, the elastic force of the reset spring 21 will squeeze and push the convex piece to automatically reset, thereby driving the adjustment plug rod 19 to automatically move into the adjustment socket, and the telescopic displacement column 3 is always fixed.

[0030] In this embodiment, the sides of the two control pull blocks 20 close to each other are fixedly installed with a connecting pull rope 22. The advantage of this arrangement is that when the connecting pull rope 22 is pulled, the two control pull blocks 20 can be pulled to move closer to each other at the same time, which is more convenient to use.

[0031] How this utility works:

[0032] When in use, the adjusting knob 10 can be pulled first until the locking socket is disengaged from the locking rod 15 to unlock the adjusting knob 10. At this time, the adjusting knob 10 can be rotated. The rotation of the adjusting knob 10 will drive one of the two-way screws 6 to rotate through the hexagonal connecting rod 9. Under the joint action of the first bevel gear 13, the connecting rotating rod 12 and the second bevel gear 14, the other two-way screw 6 will be driven to rotate synchronously at the same time. The rotation of the two-way screw 6 will drive the two support plates 8 to move toward or away from each other through the moving block 7, and then the distance between the two support plates 8 can be adjusted to support different types of solid phase extraction columns. After adjusting to the appropriate distance, the adjusting knob 10 can be directly released. At this time, under the elastic force of the extrusion spring 16, the adjusting knob 10 will be squeezed and pushed to automatically reset, so that the lock The fixed rod 15 will automatically insert into the locking hole, locking the adjusting knob 10 and preventing it from rotating, which can effectively reduce the situation where the distance between the two support plates 8 changes due to accidentally touching the adjusting knob 10. Then, the staff can pull the connecting rope 22 until the adjusting rod 19 is driven out of the adjusting hole by the control pull block 20 to loosen the telescopic column 3. At this time, the staff can slide the telescopic column 3 up and down to adjust the height of the support plate 8. After adjusting to the appropriate height, loosen the connecting rope 22. Under the elastic force of the reset spring 21, the protrusion will be squeezed and pushed to automatically reset, thereby driving the adjusting rod 19 to automatically move into the adjusting hole, fixing the telescopic column 3, so that the device can be adapted to solid phase extraction columns of different lengths. The operation is simple and convenient, and the practicability is good.

[0033] Finally, it should be noted that the above is only 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 utility model shall be included in the protection scope of the present utility model.

Claims

1. A support mechanism assembly for a solid phase extraction column, comprising two device bottom plates (1), characterized in that: A hollow support column (2) is fixedly installed on the top of the two device bottom plates (1), a telescopic column (3) is slidably sleeved in the two hollow support columns (2), a height adjustment unit for fixing the telescopic column (3) is provided on the hollow support column (2), a hollow mounting column (4) is fixedly installed on the top of the two telescopic columns (3), two fixing frames (5) are fixedly installed on the side of the hollow mounting column (4), two bidirectional screw rods (6) are rotatably installed on the inner walls of the sides of the two fixing frames (5), two moving blocks (7) are threadedly sleeved on the two bidirectional screw rods (6), and each two corresponding moving blocks (7) are fixedly installed on the sides close to each other. A support plate (8) is provided, and a plurality of placement grooves are evenly provided on the sides of the two support plates (8) close to each other. One end of the two bidirectional screw rods (6) extends into the hollow mounting column (4), and a synchronous transmission unit for making the two bidirectional screw rods (6) rotate synchronously is arranged in the hollow mounting column (4). The other end of one of the bidirectional screw rods (6) extends outside the fixed frame (5) and is fixedly installed with a hexagonal connecting rod (9). An adjusting knob (10) is slidably sleeved on the hexagonal connecting rod (9), and a blocking sheet (11) is fixedly installed at the end of the hexagonal connecting rod (9). A locking unit for fixing the adjusting knob (10) is arranged on the fixed frame (5).

2. The support mechanism assembly of a solid phase extraction column according to claim 1, characterized in that: The synchronous transmission unit comprises a connecting rotating rod (12) rotatably mounted on the inner wall of the side of the hollow mounting column (4); one end of each of the two bidirectional screw rods (6) is fixedly mounted with a first bevel gear (13); two second bevel gears (14) are fixedly sleeved on the connecting rotating rod (12); and the two first bevel gears (13) are respectively meshed with the two second bevel gears (14).

3. The support mechanism assembly of a solid phase extraction column according to claim 1, characterized in that: The locking unit comprises two locking rods (15) fixedly mounted on the side of the fixing frame (5); a plurality of locking holes are evenly arranged on the side of the adjusting knob (10); ends of the two locking rods (15) respectively extend into two of the locking holes; and an elastic squeezing element for squeezing the adjusting knob (10) to automatically reset is provided on the blocking sheet (11).

4. The support mechanism assembly of a solid phase extraction column according to claim 3, characterized in that: The elastic extrusion element comprises an extrusion spring (16) sleeved on the hexagonal connecting rod (9), and two ends of the extrusion spring (16) are respectively fixedly mounted on the side of the adjusting knob (10) and the blocking plate (11).

5. The support mechanism assembly of a solid phase extraction column according to claim 1, characterized in that: The height adjustment unit comprises a mounting cross bar (17) fixedly mounted on the sides of the two hollow support columns (2) close to each other, two fixing protrusions (18) fixedly mounted on the top of the mounting cross bar (17), a horizontal sliding hole is provided on the side of the fixing protrusion (18), an adjustment plug rod (19) is slidably mounted in the horizontal sliding hole, a plug rod sliding hole is provided on the side of the hollow support column (2), a plurality of adjustment plug holes are evenly provided on the side of the telescopic displacement column (3), one end of the adjustment plug rod (19) passes through the plug rod sliding hole and extends into one of the adjustment plug holes, a control pull block (20) is fixedly mounted on the other end of the adjustment plug rod (19), and an elastic reset element is mounted on the adjustment plug rod (19).

6. The support mechanism assembly of a solid phase extraction column according to claim 5, characterized in that: The elastic reset element comprises a convex piece fixedly sleeved on the adjusting plug rod (19), a reset spring (21) is sleeved on the adjusting plug rod (19), and two ends of the reset spring (21) are respectively fixedly mounted on the fixed convex block (18) and the side of the convex piece.

7. The support mechanism assembly of a solid phase extraction column according to claim 5, characterized in that: A connecting pull rope (22) is fixedly mounted on mutually adjacent side portions of the two control pull blocks (20).

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