Oscillating mechanism of graphite digestion instrument

Abstract

The utility model discloses an oscillating mechanism of a graphite digestion instrument, and relates to the technical field of graphite digestion instruments. The device comprises a lifting assembly arranged on one side of an instrument body; the lifting assembly is connected with a horizontal swinging assembly; the horizontal swinging assembly is arranged above the instrument body; a bearing plate is horizontally connected to the horizontal swing assembly. A plurality of positioning sleeves corresponding to the containing grooves are vertically inserted into the upper surface of the bearing plate in a penetrating mode. According to the utility model, the digestion tube is in interference fit with the positioning sleeve, and then the lower end part of the digestion tube is inserted into the accommodating groove, so that when the digestion tube needs to be oscillated, the digestion tube is taken out from the accommodating groove by utilizing the lifting assembly, and then the digestion tube is driven by the horizontal swinging assembly to horizontally swing above the instrument body through the bearing plate; therefore, the oscillation of the soil sample and each strong acid reagent in the digestion tube is realized, and the mixing efficiency and effect of the soil sample and each strong acid reagent are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite digestion instruments, in particular to an oscillation mechanism of a graphite digestion instrument. Background Art

[0002] Graphite digester is an analytical instrument used in the fields of chemistry, agronomy, forestry, environmental science and technology, and resource science and technology. It can digest samples before analyzing metal elements such as soil, sewage, feed, plants, seeds, ores, metals, and biological tissues. Therefore, graphite digester is a commonly used equipment in inspection and testing departments.

[0003] A Chinese patent with the authorization announcement number CN115791361B discloses a pretreatment device for soil sample detection, which uses an eccentric block to make the oscillation shaft realize a small up and down swing during the rotation process, thereby driving the oscillation block to realize up and down displacement on the limit shaft, and then driving the entire oscillation bracket to realize the up and down oscillation process through the oscillation block. The above device has the following disadvantages: since the depth of the liquid in the digestion tube is greater than the diameter of the digestion tube, if the up and down vibration amplitude of the digestion tube is small, it will be difficult to achieve effective mixing of the soil sample in the digestion tube with each strong acid reagent, but if the up and down vibration amplitude of the digestion tube is large, it may cause the strong acid reagent in the digestion tube to overflow and other problems. Therefore, it is urgent to study an oscillation mechanism of a graphite digester in order to solve the above problems. Utility Model Content

[0004] The utility model provides an oscillating mechanism of a graphite digestion instrument, and its purpose is to solve the technical problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an oscillating mechanism of a graphite digestion instrument, which comprises an instrument body; the upper surface of the instrument body is provided with a plurality of accommodating grooves for placing digestion tubes; the oscillating mechanism comprises a lifting component arranged at one side of the instrument body; the lifting component is connected with a horizontal swing component; the horizontal swing component is arranged above the instrument body; the horizontal swing component is horizontally connected with a bearing plate; a plurality of positioning sleeves corresponding to the accommodating grooves are vertically inserted through the upper surface of the bearing plate; the positioning sleeves can be interference-fitted with the digestion tubes; and the positioning sleeves are silicone sleeves.

[0007] As a preferred technical solution of the utility model, the lifting assembly includes a support frame with a "ㄇ"-shaped structure; a pair of screw rods are rotatably connected side by side on the middle upper surface of the support frame; both screw rods are threadedly matched with nuts for carrying the horizontal swing assembly.

[0008] As a preferred technical solution of the utility model, a middle edge of the support frame conflicts with a side surface of the instrument body; a pair of L-shaped strips are symmetrically fixed to a middle edge of the support frame; one end of the two L-shaped strips respectively conflicts with the opposite side surfaces of the instrument body.

[0009] As a preferred technical solution of the utility model, the two screw rods have the same rotation direction; a servo motor is vertically arranged between the two screw rods; the servo motor is fixed at the middle part of the support frame; a first pulley is fixedly sleeved on the output end of the servo motor; second pulleys are horizontally arranged on opposite sides of the first pulley; the two second pulleys are respectively fixedly sleeved on the outer circumference of the two screw rods; the first pulley and the two second pulleys are connected by a synchronous belt transmission.

[0010] As a preferred technical solution of the utility model, the horizontal swing component includes a horizontally arranged installation frame; one side edge of the installation frame is fixed on two nuts; a motor module is fixed on the other side edge of the installation frame; a first rotating rod is horizontally fixed to the output end of the motor module; a first connecting shaft is vertically fixed to the end of the first rotating rod away from the motor module; the lower end of the first connecting shaft is rotatably connected to an edge of a supporting plate; a second rotating rod is arranged parallel to one side of the first rotating rod; one end of the second rotating rod is rotatably connected to a side edge of the installation frame; a second connecting shaft is vertically fixed to the other end of the second rotating rod; and the lower end of the second connecting shaft is rotatably connected to the other edge of the supporting plate.

[0011] The utility model has the following beneficial effects:

[0012] The utility model allows the digestion tube to pass through the positioning sleeve and be inserted into the accommodating groove. Since the positioning sleeve and the digestion tube are interference-fitted at this time, the bearing plate can drive the digestion tube to move up and down on the instrument body. When the digestion tube needs to be oscillated, the lifting component drives the digestion tube to move out of the accommodating groove via the horizontal swing component and the bearing plate, and then the horizontal swing component drives the digestion tube to swing horizontally above the instrument body via the bearing plate, thereby realizing the oscillation of the soil sample and each strong acid reagent in the digestion tube, which not only effectively improves the mixing efficiency and effect of the soil sample and each strong acid reagent, but also avoids the problem of overflow of the strong acid reagent in the digestion tube.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 The utility model is a schematic diagram of the structure of an oscillating mechanism of a graphite digestion instrument.

[0016] Figure 2 for Figure 1 The main view of the structure.

[0017] Figure 3 It is a structural schematic diagram of a graphite digestion instrument in the prior art.

[0018] Figure 4 It is a structural schematic diagram of the connection between the lifting assembly and the horizontal swing assembly of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the lifting assembly of the utility model.

[0020] Figure 6 It is a structural schematic diagram of the connection between the horizontal swing component and the bearing plate of the utility model.

[0021] Figure 7 It is a structural schematic diagram of the horizontal swing component of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1- instrument body, 2- digestion tube, 3- lifting assembly, 4- horizontal swing assembly, 5- bearing plate, 101- accommodating groove, 301- supporting frame, 302- screw rod, 303- nut, 304- L-shaped bar, 305- servo motor, 306- first pulley, 307- second pulley, 401- mounting frame, 402- motor module, 403- first rotating rod, 404- first connecting shaft, 405- second rotating rod, 406- second connecting shaft, 501- positioning sleeve. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] Embodiment 1:

[0026] See also Figure 1-4 As shown, the utility model is an oscillation mechanism of a graphite digestion instrument, which includes a conventional instrument body 1 in the field; the upper surface of the instrument body 1 has a plurality of accommodating grooves 101 for placing a digestion tube 2; the oscillation mechanism includes a lifting assembly 3 arranged on one side of the instrument body 1; the lifting assembly 3 is connected to a horizontal swing assembly 4; the horizontal swing assembly 4 is arranged above the instrument body 1; the horizontal swing assembly 4 is horizontally connected to a bearing plate 5; a plurality of positioning sleeves 501 corresponding to the accommodating grooves 101 are vertically inserted through the upper surface of the bearing plate 5; the positioning sleeve 501 can be interference fit with the digestion tube 2; the positioning sleeve 501 is a silicone sleeve; the positioning sleeve 501 is located on the bearing plate 5 through the horizontal turning limit of the upper and lower ports. When in use, the digestion tube 2 is passed through the positioning sleeve 501 and inserted into the accommodating groove 101. Since the positioning sleeve 501 and the digestion tube 2 are interference fit at this time, the supporting plate 5 can drive the digestion tube 2 to move up and down on the instrument body 1. When the digestion tube 2 needs to be oscillated, the digestion tube 2 is moved out of the accommodating groove 101 by the lifting component 3 through the horizontal swing component 4 and the supporting plate 5, and then the digestion tube 2 is driven by the horizontal swing component 5 through the supporting plate 4 to swing horizontally above the instrument body 1, thereby realizing the oscillation of the soil sample and each strong acid reagent in the digestion tube 2, which not only effectively improves the mixing efficiency and effect of the soil sample and each strong acid reagent, but also avoids the overflow of the strong acid reagent in the digestion tube 2.

[0027] Embodiment 2:

[0028] Based on Example 1, Figure 1-2 and Figure 4-5As shown, the lifting assembly 3 includes a support frame 301 with a "ㄇ"-shaped structure; a pair of screw rods 302 are rotatably connected side by side on the upper surface of the middle part of the support frame 301; both screw rods 302 are threadedly matched with a nut 303 for carrying the horizontal swing assembly 4; the two screw rods 302 have the same rotation direction; a servo motor 305 is vertically arranged between the two screw rods 302; the servo motor 305 is bolted to the middle part of the support frame 301; the output end of the servo motor 305 is keyed to a first pulley 306; second pulleys 307 are horizontally arranged on opposite sides of the first pulley 306; the two second pulleys 307 are respectively keyed to the outer periphery of the two screw rods 302; the first pulley 306 and the two second pulleys 307 are connected by a synchronous belt transmission; the first pulley 306 and the two second pulleys 307 are respectively provided with tensioning wheels; the tensioning wheel is rotatably connected to the middle part of the support frame 301; the circumferential wheel surface of the tensioning wheel conflicts with the outer surface of the synchronous belt. When in use, the servo motor 305 drives the two screw rods 302 to rotate synchronously via the first pulley 306 and the two second pulleys 307, prompting the two screw nuts 303 to drive the digestion tube 2 to move up and down via the horizontal swing component 4 and the supporting plate 5, thereby realizing the position change of the digestion tube 2.

[0029] Among them Figure 1-2 and Figure 4-5 As shown, a middle edge of the support frame 301 contacts a side surface of the instrument body 1; a pair of L-shaped bars 304 are symmetrically screwed to a middle edge of the support frame 301; and one end of the two L-shaped bars 304 contacts the opposite side surfaces of the instrument body 1. When in use, the lifting assembly 3 and the horizontal swing assembly 4 are positioned by contacting a middle edge of the support frame 301 with a side surface of the instrument body 1 and contacting one end of the two L-shaped bars 304 with the opposite side surfaces of the instrument body 1, so as to ensure that the multiple positioning sleeves 501 on the carrier plate 5 correspond to the multiple accommodating grooves 101 when the carrier plate 5 is in the initial position.

[0030] Embodiment three:

[0031] Based on Example 1, Figure 1-2 , Figure 4 and Figure 6-7As shown, the horizontal swing component 4 includes a horizontally arranged mounting frame 401; one side edge of the mounting frame 401 is fixed on two nuts 303; the other side edge of the mounting frame 401 is bolted with a conventional motor module 402 in the field; the motor module 402 is composed of a bevel gear reducer and a servo motor; a first rotating rod 403 is horizontally fixed to the output end of the motor module 402; a first connecting shaft 404 is vertically fixed to one end of the first rotating rod 403 away from the motor module 402; the lower end of the first connecting shaft 404 is rotatably connected to an edge of the supporting plate 5; a second rotating rod 405 is parallelly arranged on one side of the first rotating rod 403; one end of the second rotating rod 405 is rotatably connected to a side edge of the mounting frame 401; a second connecting shaft 406 is vertically fixed to the other end of the second rotating rod 405; the second rotating rod 405 is consistent in length with the first rotating rod 403; the lower end of the second connecting shaft 406 is rotatably connected to the other edge of the supporting plate 5. During use, after the digestion tube 2 is moved out of the receiving groove 101, the motor module 402 drives the first rotating rod 403 to rotate, prompting the second rotating rod 405 to rotate synchronously, thereby realizing horizontal swing of the supporting plate 5, effectively improving the oscillation efficiency and effect of the digestion tube 2; at the same time, it should be explained that a double crank mechanism is formed between the first rotating rod 403, the second rotating rod 405 and the supporting plate 5, so it can not only ensure the stable movement of the supporting plate 5, but also realize the stable oscillation of the digestion tube 2, effectively ensuring the digestion efficiency of the soil sample.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An oscillating mechanism of a graphite digestion instrument, the graphite digestion instrument comprising an instrument body (1); the upper surface of the instrument body (1) has a plurality of accommodating grooves (101) for placing digestion tubes (2); characterized in that: The oscillation mechanism comprises a lifting component (3) arranged on one side of the instrument body (1); the lifting component (3) is connected to a horizontal swing component (4); the horizontal swing component (4) is arranged above the instrument body (1); the horizontal swing component (4) is horizontally connected to a supporting plate (5); a plurality of positioning sleeves (501) corresponding to the accommodating grooves (101) are vertically inserted through the upper surface of the supporting plate (5); the positioning sleeves (501) can be interference-fitted with the digestion tube (2).

2. The oscillating mechanism of a graphite digestion instrument according to claim 1, characterized in that: The lifting assembly (3) comprises a support frame (301) in a "ㄇ"-shaped structure; a pair of screw rods (302) are rotatably connected side by side on the middle upper surface of the support frame (301); and nuts (303) for carrying the horizontal swing assembly (4) are threadedly matched on the two screw rods (302).

3. The oscillating mechanism of a graphite digestion instrument according to claim 2, characterized in that: An edge in the middle of the support frame (301) contacts a side surface of the instrument body (1); a pair of L-shaped bars (304) are symmetrically fixed to an edge in the middle of the support frame (301); and one end of the two L-shaped bars (304) contacts the opposite side surfaces of the instrument body (1).

4. An oscillating mechanism of a graphite digestion instrument according to claim 2 or 3, characterized in that: The two screw rods (302) have the same rotation direction; a servo motor (305) is vertically arranged between the two screw rods (302); the servo motor (305) is fixed at the middle of the support frame (301); a first pulley (306) is fixedly sleeved on the output end of the servo motor (305); second pulleys (307) are horizontally arranged on opposite sides of the first pulley (306); the two second pulleys (307) are respectively fixedly sleeved on the outer circumferences of the two screw rods (302); the first pulley (306) and the two second pulleys (307) are connected by a synchronous belt transmission.

5. The oscillating mechanism of a graphite digestion instrument according to claim 4, characterized in that: The horizontal swing assembly (4) comprises a horizontally arranged installation frame (401); one side edge of the installation frame (401) is fixed on two nuts (303); a motor module (402) is fixed on the other side edge of the installation frame (401); a first rotating rod (403) is horizontally fixed on the output end of the motor module (402); a first connecting shaft (404) is vertically fixed on one end of the first rotating rod (403) away from the motor module (402); the lower end of the first connecting shaft (404) is rotatably connected to an edge of the bearing plate (5); a second rotating rod (405) is arranged parallel to one side of the first rotating rod (403); one end of the second rotating rod (405) is rotatably connected to one side edge of the installation frame (401); a second connecting shaft (406) is vertically fixed on the other end of the second rotating rod (405); the lower end of the second connecting shaft (406) is rotatably connected to the other edge of the bearing plate (5).

6. The oscillating mechanism of a graphite digestion instrument according to claim 5, characterized in that: The positioning sleeve (501) is a silicone sleeve.

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