A manual press for assembling solid phase extraction columns

Abstract

This utility model relates to a manual press for assembling solid-phase extraction columns. It includes a manual press body, a pressure block connected to the bottom of a movable rod of the press body, and several pressure rods fixedly mounted on the bottom of the pressure block. A placement seat is provided on the base of the manual press body, and the placement seat has several placement slots for placing column tubes, each slot matching one of the pressure rods. During assembly, multiple column tubes are placed in the placement slots, and then placed one by one into the tube openings. The pressure rods of the manual press body press down on the lower and upper sieve plates. The entire solid-phase extraction column assembly can be completed on a single manual press body. The structure is simple and practical. The pressing operation of the manual press body replaces the original manual hand-held pressure rod operation, allowing for the assembly of multiple column tubes at once, saving assembly time, resulting in a tighter assembly, less effort, and higher efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of solid phase extraction column assembly equipment, specifically to a manual press for assembling solid phase extraction columns. Background Technology

[0002] In the assembly process of solid-phase extraction columns, two main assembly methods are currently used, depending on the production scale and application scenario: intelligent equipment assembly and manual assembly. Intelligent equipment assembly uses automated mechanical structures to achieve the clamping operation of the upper and lower sieve plates and packing material. It is suitable for large-scale standardized production and has the advantages of high efficiency and consistency. However, the equipment cost is high and the flexibility is insufficient, making it difficult to meet the needs of small-batch or customized production.

[0003] For small-batch, customized, or scenario-specific applications, the industry commonly uses traditional manual assembly methods. The typical procedure involves the operator holding the solid-phase extraction column tube with one hand and applying pressure to the sieve plates and packing material one by one using a pressure bar tool to achieve a tight seal. However, this traditional manual assembly method has the following technical drawbacks:

[0004] Insufficient operational stability: When the column tube is held by hand for clamping, the column tube lacks fixed support and is prone to tilting or slipping due to uneven force or operational errors. This can even cause the powdery material inside the column tube to spill out, affecting assembly quality and posing a risk of material waste.

[0005] Low assembly efficiency: Only one column tube can be pressed in a single operation, making it difficult to achieve continuous operation of multiple columns tubes, resulting in a long overall assembly cycle and high manual labor intensity.

[0006] Consistency in compression is difficult to guarantee: The force and direction of manually applied pressure are easily affected by operating habits, which may lead to inconsistent compression of the sieve plate and packing, thereby affecting the sealing performance and reliability of the solid phase extraction column. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a manual press for assembling solid phase extraction columns, so as to overcome the shortcomings of the prior art.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A manual press for assembling solid phase extraction columns includes a manual press body, a pressure block connected to the bottom of the movable rod of the manual press body, a plurality of pressure rods fixedly arranged at the bottom of the pressure block, a placement seat provided on the base of the manual press body, a plurality of placement slots for placing column tubes provided on the placement seat, and the plurality of placement slots respectively matching the plurality of pressure rods.

[0009] The beneficial effects of this utility model are as follows: During assembly, multiple column tubes are placed in the placement slots, and then the tubes are placed one by one into the tube openings. The sieve plate and upper sieve plate are pressed down by the pressure rod of the manual press body to achieve the clamping operation of the sieve plate and packing. The entire solid phase extraction column can be assembled on only one manual press body. The structure is simple and practical. The pressing operation of the manual press body replaces the original manual hand-held pressure rod operation, which can assemble multiple column tubes at one time, saving assembly time. At the same time, the assembly is tighter, the operation is more labor-saving, and the efficiency is higher. Moreover, there is no need to repeatedly remove the column tubes during assembly, avoiding accidental drop of the column tubes and spillage of powder inside the column tubes, which is more convenient.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, it also includes a movable plate with a T-shaped slider at the bottom and a groove on the upper surface of the base that matches the T-shaped slider. The T-shaped slider slides in the groove, and the placement seat is placed on the movable plate. The movable plate and the base are locked together by a locking mechanism.

[0012] Furthermore, the locking mechanism includes a rotating rod and a locking tongue. The locking tongue is fixedly connected to the peripheral wall of one end of the rotating rod and is set perpendicular to the axis of the rotating rod. A rotating hole is provided at the front end of the movable plate, and a slot communicating with the rotating hole is provided at the bottom of the movable plate. One end of the rotating rod is rotatably connected to the rotating hole through a torsion spring. The locking tongue is located in the slot. A locking groove corresponding to the slot is provided on the upper surface of the base.

[0013] Furthermore, a handle is attached to the other end of the rotating rod.

[0014] Furthermore, the compression bar is made of polytetrafluoroethylene (PTFE).

[0015] Furthermore, the pressure block is detachably connected to the bottom of the movable rod by bolts, and the placement seat is detachably connected to the base by bolts.

[0016] Furthermore, the base of the manual press body is provided with several positioning holes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Manual press body; 11. Movable rod; 12. Base; 121. Slide groove; 122. Locking groove; 123. Positioning hole; 2. Press block; 3. Press rod; 4. Placement seat; 41. Placement groove; 5. Movable plate; 51. T-shaped slider; 52. Rotating hole; 53. Slot; 6. Locking mechanism; 61. Rotating rod; 62. Locking tongue; 63. Handle. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] like Figures 1-3 As shown in Embodiment 1, a manual press for assembling solid phase extraction columns includes a manual press body 1. The bottom of the movable rod 11 of the manual press body 1 is connected to a pressure block 2. Several pressure rods 3 are fixedly arranged at the bottom of the pressure block 2. A placement seat 4 is provided on the base 12 of the manual press body 1. Several placement slots 41 for placing column tubes are provided on the placement seat 4. The several placement slots 41 are respectively matched with several pressure rods 3.

[0024] During assembly, multiple column tubes are placed in the placement slot 41, and then the tubes are placed one by one into the tube openings. The lower and upper sieve plates are pressed down by the pressure rod 3 of the manual press body 1 to achieve the compaction of the sieve plates and packing. The entire solid phase extraction column can be assembled on only one manual press body 1. The structure is simple and practical. The pressing operation of the manual press body 1 replaces the original manual pressing operation of the pressure rod 3, allowing multiple column tubes to be assembled at one time, saving assembly time. At the same time, the assembly is tighter, the operation is less labor-intensive, and the efficiency is higher. Moreover, there is no need to repeatedly remove the column tubes during assembly, avoiding accidental drop of the column tubes and spillage of powder inside the column tubes, making it more convenient.

[0025] Example 2 is a further improvement based on Example 1, and its details are as follows:

[0026] It also includes a movable plate 5, with a T-shaped slider 51 at its bottom. The upper surface of the base 12 has a groove 121 that matches the T-shaped slider 51. The T-shaped slider 51 slides within the groove 121. The placement seat 4 is mounted on the movable plate 5. The movable plate 5 and the base 12 are locked together by a locking mechanism 6. Sliding the movable plate 5 away from the bottom of the pressure rod 3 allows for better powder filling, placement, or removal of the column tube, avoiding obstruction by the pressure rod 3.

[0027] Example 3 is a further improvement based on Example 2, and its details are as follows:

[0028] The locking mechanism 6 includes a rotating rod 61 and a locking tongue 62. The locking tongue 62 is fixedly connected to the peripheral wall of one end of the rotating rod 61 and is perpendicular to the axis of the rotating rod 61. The front end of the movable plate 5 is provided with a rotating hole 52, and the bottom of the movable plate 5 is provided with a slot 53 communicating with the rotating hole 52. One end of the rotating rod 61 is rotatably connected to the rotating hole 52 through a torsion spring. The locking tongue 62 is located in the slot 53. The upper end surface of the base 12 is provided with a locking groove 122 corresponding to the slot 53. In the locked state, the locking tongue 62 extends out of the slot 53 and is located in the locking groove 122. At this time, the movable plate 5 cannot slide. When it is necessary to slide the movable plate 5 out, simply rotate the rotating rod 61 to make the locking tongue 62 disengage from the locking groove 122 and be located in the slot 53, thereby releasing the lock on the movable plate 5.

[0029] Example 4 is a further improvement on Example 3, and its details are as follows:

[0030] The other end of the rotating rod 61 is connected to a handle 63. This allows for easier turning of the rotating rod 61. In practice, the handle 63 is positioned perpendicular to the rotating rod 61 and the locking tongue 62, allowing for quick determination of whether the movable plate 5 is in a locked state based on the position of the handle 63. Figure 1 As shown, handle 63 is set horizontally, and movable plate 5 is in the locked state, as... Figure 2 As shown, handle 63 is set vertically, and movable plate 5 is in the unlocked state.

[0031] Example 5 is a further improvement based on Example 1, and its details are as follows:

[0032] The pressure bar 3 is made of polytetrafluoroethylene (PTFE). It is safe, non-toxic, corrosion-resistant, has a long service life, and is easy to process and shape.

[0033] Example 6 is a further improvement based on Example 1, and its details are as follows:

[0034] The pressure block 2 is detachably connected to the bottom of the movable rod 11 by bolts, and the placement seat 4 is detachably connected to the base 12 by bolts. Thus, the pressure block 2 with the corresponding size pressure rod 3 and the placement seat 4 with the corresponding size placement groove 41 can be replaced according to the solid phase extraction column of different sizes.

[0035] Example 7 is a further improvement based on Example 1, and its details are as follows:

[0036] The base 12 of the manual press body 1 is provided with several positioning holes 123. It can be fixed to the worktable by bolts and positioning holes 123.

[0037] Detailed operation steps:

[0038] Rotate handle 63 to unlock movable plate 5 and pull out movable plate 5. Place empty column tube into placement slot 41, put the first screen plate into column tube, then reset movable plate 5 and lock it. Press down the handle of manual press body 1 to press the screen plate into the bottom of column tube.

[0039] Rotate handle 63 to unlock movable plate 5 and pull out movable plate 5. Powder is poured into the column tube, and then the second sieve plate is placed into the column tube. Then, movable plate 5 is reset and locked. Press down the handle of manual press body 1 to compact the sieve plate, thus completing the assembly of a batch of solid phase extraction columns.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hand press for solid phase extraction column assembly, characterized in that, The manual press body (1) is included. The bottom of the movable rod (11) of the manual press body (1) is connected to a pressure block (2). Several pressure rods (3) are fixedly provided at the bottom of the pressure block (2). A placement seat (4) is provided on the base (12) of the manual press body (1). Several placement slots (41) for placing column tubes are provided on the placement seat (4). The several placement slots (41) are respectively matched with the several pressure rods (3).

2. A hand press for solid phase extraction column assembly according to claim 1, characterized in that It also includes a movable plate (5), the bottom of which is provided with a T-shaped slider (51), and the upper surface of the base (12) is provided with a groove (121) that is adapted to the T-shaped slider (51). The T-shaped slider (51) slides in the groove (121), and the placement seat (4) is provided on the movable plate (5). The movable plate (5) and the base (12) are locked together by a locking mechanism (6).

3. A hand press for solid phase extraction column assembly according to claim 2, wherein, The locking mechanism (6) includes a rotating rod (61) and a locking tongue (62). The locking tongue (62) is fixedly connected to one end of the circumferential wall of the rotating rod (61) and is set perpendicular to the axis of the rotating rod (61). The front end of the movable plate (5) is provided with a rotating hole (52), and the bottom of the movable plate (5) is provided with a slot (53) communicating with the rotating hole (52). One end of the rotating rod (61) is rotatably connected to the rotating hole (52) through a torsion spring. The locking tongue (62) is located in the slot (53). The upper surface of the base (12) is provided with a locking groove (122) corresponding to the slot (53).

4. A manual press for assembling solid-phase extraction columns according to claim 3, characterized in that, The other end of the rotating rod (61) is connected to a handle (63).

5. A manual press for assembling solid-phase extraction columns according to claim 1, characterized in that, The pressure bar (3) is made of polytetrafluoroethylene.

6. A manual press for assembling solid-phase extraction columns according to claim 1, characterized in that, The pressure block (2) is detachably connected to the bottom of the movable rod (11) by bolts, and the placement seat (4) is detachably connected to the base (12) by bolts.

7. A manual press for assembling solid-phase extraction columns according to claim 1, characterized in that, The base (12) of the manual press body (1) is provided with several positioning holes (123).

Images