Solid-phase extraction frame convenient to splice

Abstract

The utility model discloses a solid-phase extraction frame convenient to splice, which belongs to the field of solid-phase extraction frames, and comprises two groups of symmetrically arranged fixed bases, mounting mechanisms are arranged at the tops of the fixed bases, and the fixed bases are fixed by pressing two groups of fixed rods and compressing springs I arranged on the side surfaces of the fixed rods. Mounting blocks arranged at the bottom are inserted into mounting grooves through placing plates, and two groups of fixing rods are inserted into fixing grooves formed in the two sides of the mounting grooves under the action of rebound force of springs I, so that the mounting blocks are fixed into the mounting grooves, and the extraction frame is convenient to mount and dismount, assemble, carry and carry; a sample is placed in a placing hole formed in a placing plate, the placing plate pushes a bearing block to move along with increase of weight, a sliding block compresses a second spring arranged at the bottom, the height of the support can be adjusted according to the weight, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of solid phase extraction racks, in particular to a solid phase extraction rack which is easy to splice. Background Art

[0002] Solid phase extraction column is a sample pretreatment device developed from chromatography column and used for extraction, separation and concentration. Most common solid phase extraction columns are syringe-type devices made of polyethylene. The device is equipped with two plugs made of polypropylene or glass fiber, and a certain amount of chromatographic adsorbent (filler) is filled between the two plugs.

[0003] The Chinese patent application number 202122894470.5 discloses a solid phase extraction rack, which belongs to the technical field of chemical instruments and equipment. The solid phase extraction rack includes a support seat and a mounting assembly for mounting and fixing a solid phase extraction column, and also includes a support assembly for supporting the support seat. The support seat and the mounting assembly are connected by a connecting assembly, and the connecting assembly includes a slide rail arranged on the support seat and a slider fixed on the mounting assembly, and the slider and the slide rail have matching specifications. The solid phase extraction rack is formed by the mounting assembly, the supporting assembly, the connecting assembly and the support seat, and the mounting assembly and the support seat are connected by the connecting assembly. The operator can select different mounting assemblies for installation according to different solid phase extraction columns, which expands the scope of use of the device. The above scheme has the following defects. The existing extraction rack is formed by a base plate, a support block and a support seat, but the base plate, the support block and the support seat are fixedly connected, which will cause problems such as inconvenience in installation and disassembly, inconvenience in transportation, and inconvenience in use.

[0004] Therefore, a solid phase extraction rack that is easy to splice is provided to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model provides a solid phase extraction rack that is easy to splice, aiming to solve the problem that the existing extraction rack proposed in the background technology is formed by a bottom plate, a support block and a support seat, but the bottom plate, the support block and the support seat are fixedly connected, which may be inconvenient to install, disassemble and carry.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solid phase extraction rack that is easy to splice, comprising two groups of symmetrically arranged fixed bases, and a mounting mechanism is arranged on the top of the fixed base;

[0009] Preferably, in order to solve the problem that the existing extraction rack is formed by a base plate, a support block and a support seat, but the base plate, the support block and the support seat are fixedly connected, which will be inconvenient to install and disassemble, and inconvenient to carry, the mounting mechanism includes a fixed block arranged above the top of the fixed base, a bearing block is arranged inside the fixed block, a mounting groove is fixedly connected to the top of the bearing block, a mounting block is arranged inside the mounting groove, a placement plate is fixedly connected to the top of the mounting block, a plurality of placement holes are provided inside the placement plate, the mounting block is plugged into the inside of the mounting groove, the sample can be placed inside the placement hole, and the mounting groove is then supported by the fixed block and the bearing block, which is easy to use.

[0010] Preferably, in order to facilitate the installation and disassembly of the mounting block, fixing rods are symmetrically arranged inside the mounting block, a spring 1 is fixedly connected between two groups of the fixing rods, a limiting rod is fixedly connected inside the mounting block, the fixing rod is arranged outside the limiting rod, the fixing rod is slidably connected to the limiting rod, and by pressing the two groups of fixing rods, the fixing rod slides outside the limiting rod, and the two groups of fixing rods compress the spring 1 into the interior of the mounting block, thereby facilitating the installation of the mounting block.

[0011] Preferably, in order to facilitate the problem of height adjustment of the frame, the supporting block is arranged at one end inside the fixed block and is fixedly connected to a sliding block, the sliding block is slidably connected to the fixed block, and a spring 2 is fixedly connected between the sliding block and the inside of the fixed block. Because the supporting block is subjected to the gravity of the sample, the supporting block is forced to push the sliding block to slide inside the sliding block, so that the sliding block compresses the plug-in block 1 set at the bottom, so that it can be adjusted according to the weight, which is convenient for taking and using.

[0012] Preferably, in order to facilitate the installation of the fixed block and the fixed base, a plug-in block 1 is fixedly connected to the bottom of the fixed block, a plug-in slot 1 is opened inside the plug-in block 1, and a plug-in slot 2 is opened at the center position inside the fixed base. The plug-in block 1 is plugged into the plug-in slot 2, and the plug-in block 1 set at the bottom of the fixed block is plugged into the plug-in slot 2 opened inside the fixed base, thereby fixing the fixed block on the top of the fixed base, which facilitates the installation of the fixed block.

[0013] Preferably, in order to facilitate the installation and fixation of the fixed base, a connecting block is provided between the two groups of the fixed bases, and plug-in block 2 is fixedly connected to both ends of the connecting block. A groove is opened on one side of the fixed base close to the connecting block, and plug-in block 2 and plug-in block 1 are plugged into plug-in slot 1 inside plug-in slot 2. The plug-in block 2 arranged on the side surfaces of the two groups of fixed bases and the two sides of the installation block are plugged in, and plug-in block 2 and plug-in block 1 are plugged into plug-in slot 1 inside plug-in slot 2 for plugging and fixing, thereby facilitating the fixation of the two groups of fixed bases and facilitating installation and disassembly.

[0014] Preferably, in order to facilitate installation and disassembly, fixing grooves are opened on both sides of the installation groove, and the fixing grooves are adapted to the fixing rods, and the fixing rods are plugged into the fixing grooves. The fixing rods are plugged into the fixing grooves under the action of a spring rebound force, which facilitates installation and disassembly.

[0015] Beneficial Effects

[0016] The mounting mechanism presses two sets of fixing rods so that the fixing rods are forced to slide outside the limiting rods, and the fixing rods compress a spring 1 arranged on the side, and the mounting block arranged at the bottom is plugged into the inside of the mounting groove through the placement plate. The two sets of fixing rods are plugged into the fixing grooves opened on both sides of the mounting groove under the action of the rebound force of the spring 1, so that the mounting block is fixed inside the mounting groove, which is convenient for installation and disassembly, and convenient for assembly of the extraction rack, and convenient for installation and carrying. The sample is placed inside the placement hole arranged inside the placement plate. As the weight increases, the placement plate pushes the bearing block to move, and the bearing block pushes the sliding block arranged at the bottom to slide inside the fixed block, so that the sliding block compresses the spring 2 arranged at the bottom, so that the height of the bracket can be adjusted according to the weight, which is convenient for use.

[0017] The installation mechanism plugs the two groups of fixed base sides into the plug-in blocks 2 arranged on both sides of the installation block. The plug-in block 2 will be plugged into the plug-in slot 1 inside the plug-in slot 2 together with the plug-in block 1 to be plugged and fixed, thereby facilitating the fixation of the two groups of fixed bases. The plug-in block 1 arranged at the bottom of the fixed block is plugged into the plug-in slot 2 opened inside the fixed base, thereby fixing the fixed block on the top of the fixed base, facilitating the installation of the fixed block and facilitating installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of a solid phase extraction rack that is easy to splice;

[0019] Figure 2 It is a schematic diagram of the three-dimensional decomposition structure of a solid phase extraction rack that is easy to splice;

[0020] Figure 3 The figure is a schematic diagram of the side view structure of a solid phase extraction rack that is easy to splice.

[0021] In the figure:

[0022] 1. Fixed base; 2. Mounting mechanism; 21. Fixed block; 22. Carrying block; 23. Mounting slot; 24. Placement plate; 25. Placement hole; 26. Mounting block; 27. Fixed rod; 28. Fixed slot; 29. ​​Limit rod; 30. Spring 1; 31. Sliding block; 32. Spring 2; 33. Plug-in block 1; 34. Plug-in slot 1; 35. Plug-in slot 2; 36. Connecting block; 37. Plug-in block 2. 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] Example 1

[0025] This embodiment provides a solid phase extraction rack that is easy to splice. Figure 1-3 As shown, the solid phase extraction rack that is easy to splice includes two groups of symmetrically arranged fixed bases 1, and a mounting mechanism 2 is arranged on the top of the fixed base 1;

[0026] When in use, the installation and disassembly can be conveniently performed through the provided installation mechanism 2, the extraction frame can be conveniently assembled, and the installation, transportation and carrying are convenient, and the use is convenient.

[0027] Specifically, the mounting mechanism 2 includes a fixed block 21 disposed on the top of the fixed base 1, a bearing block 22 is disposed inside the fixed block 21, a mounting groove 23 is fixedly connected to the top of the bearing block 22, a mounting block 26 is disposed inside the mounting groove 23, a placement plate 24 is fixedly connected to the top of the mounting block 26, and a plurality of placement holes 25 are provided inside the placement plate 24;

[0028] When in use, the mounting block 26 is inserted into the mounting groove 23, and the sample can be placed in the placement hole 25. The mounting groove 23 is then supported by the fixing block 21 and the bearing block 22, which is convenient to use.

[0029] Furthermore, the interior of the mounting block 26 is symmetrically provided with fixing rods 27, and a spring 30 is fixedly connected between the two sets of fixing rods 27. The interior of the mounting block 26 is fixedly connected with a limiting rod 29, and the fixing rod 27 is arranged outside the limiting rod 29, and the fixing rod 27 is slidably connected with the limiting rod 29;

[0030] When in use, by pressing the two sets of fixing rods 27, the fixing rods 27 slide outside the limiting rods 29, and the two sets of fixing rods 27 compress the spring 1 30 into the interior of the mounting block 26, so as to facilitate the installation of the mounting block 26;

[0031] Furthermore, fixing grooves 28 are provided on both sides of the installation groove 23, and the fixing grooves 28 are adapted to the fixing rods 27, and the fixing rods 27 are plugged into the fixing grooves 28;

[0032] When in use, the mounting block 26 is inserted into the interior of the mounting groove 23, and the fixing rod 27 is plugged into the fixing groove 28 under the action of the rebound force of the spring 30, so as to facilitate the fixing of the mounting block 26 and the mounting groove 23.

[0033] Specifically, one end of the bearing block 22 disposed inside the fixed block 21 is fixedly connected to a sliding block 31, the sliding block 31 is slidably connected to the fixed block 21, and a spring 2 32 is fixedly connected between the sliding block 31 and the inside of the fixed block 21;

[0034] When in use, the supporting block 22 is subjected to the gravity of the sample, so that the supporting block 22 is forced to push the sliding block 31 to slide inside the sliding block 31, so that the sliding block 31 compresses the plug-in block 33 set at the bottom, so that it can be adjusted according to the weight for easy picking and use.

[0035] Example 2

[0036] Different from Example 1, Figure 1-2 As shown, the solid phase extraction rack that is easy to splice includes a fixed block 21 with a plug-in block 33 fixedly connected to the bottom, a plug-in slot 34 is provided inside the plug-in block 33, and a plug-in slot 35 is provided at the center position inside the fixed base 1, and the plug-in block 33 is plugged into the plug-in slot 35;

[0037] When in use, the plug-in block 1 33 provided at the bottom of the fixing block 21 is plugged into the plug-in slot 2 35 provided inside the fixing base 1, so that the fixing block 21 is fixed to the top of the fixing base 1, which facilitates the installation of the fixing block 21;

[0038] Specifically, a connecting block 36 is provided between the two sets of fixed bases 1, and plug-in blocks 37 are fixedly connected to both ends of the connecting block 36. A slot is provided on one side of the fixed base 1 close to the connecting block 36, and the plug-in block 37 and the plug-in block 1 33 are plugged into the plug-in slot 1 34 inside the plug-in slot 2 35;

[0039] When in use, the two sets of fixed bases 1 are plugged into the plug-in blocks 37 set on both sides of the mounting block 26. The plug-in blocks 37 will be plugged into the plug-in slots 34 inside the plug-in slots 35 together with the plug-in blocks 33 for plugging and fixing, thereby facilitating the fixation of the two sets of fixed bases 1 and facilitating installation and disassembly.

[0040] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A solid phase extraction rack that is easy to splice, comprising two sets of symmetrically arranged fixed bases (1), characterized in that: A mounting mechanism (2) is provided on the top of the fixed base (1); The mounting mechanism (2) comprises a fixed block (21) arranged above the top of the fixed base (1); a bearing block (22) is arranged inside the fixed block (21); a mounting groove (23) is fixedly connected to the top of the bearing block (22); a mounting block (26) is arranged inside the mounting groove (23); a placement plate (24) is fixedly connected to the top of the mounting block (26); and a plurality of placement holes (25) are provided inside the placement plate (24).

2. The solid phase extraction rack that is easy to splice according to claim 1, characterized in that: The interior of the mounting block (26) is symmetrically provided with fixing rods (27), two groups of the fixing rods (27) are fixedly connected with a spring 1 (30), the interior of the mounting block (26) is fixedly connected with a limiting rod (29), the fixing rod (27) is arranged outside the limiting rod (29), and the fixing rod (27) is slidably connected with the limiting rod (29).

3. The solid phase extraction rack that is easy to splice according to claim 1, characterized in that: One end of the bearing block (22) disposed inside the fixed block (21) is fixedly connected to a sliding block (31), the sliding block (31) is slidably connected to the fixed block (21), and a second spring (32) is fixedly connected between the sliding block (31) and the inside of the fixed block (21).

4. The solid phase extraction rack that is easy to splice according to claim 1, characterized in that: The bottom of the fixed block (21) is fixedly connected with a plug-in block 1 (33), a plug-in slot 1 (34) is provided inside the plug-in block 1 (33), a plug-in slot 2 (35) is provided at the center position inside the fixed base (1), and the plug-in block 1 (33) is plugged into the plug-in slot 2 (35).

5. The solid phase extraction rack that is easy to splice according to claim 4, characterized in that: A connecting block (36) is provided between the two groups of the fixed bases (1), and plug-in blocks (37) are fixedly connected to the two ends of the connecting block (36). A slot is provided on one side of the fixed base (1) close to the connecting block (36), and the plug-in block (37) and the plug-in block (33) are plugged into the plug-in slot (34) inside the plug-in slot (35).

6. The solid phase extraction rack that is easy to splice according to claim 1, characterized in that: The two sides of the installation groove (23) are provided with fixing grooves (28), the fixing grooves (28) are matched with the fixing rods (27), and the fixing rods (27) are plugged into the fixing grooves (28).

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