Digestion tube taking and placing mechanism of graphite digestion instrument

Abstract

The utility model discloses a digestion tube taking and placing mechanism of a graphite digestion instrument, and relates to the technical field of graphite digestion instruments. The device comprises a pair of supporting battens which are horizontally arranged on the two opposite sides of an instrument body respectively. A pair of mounting columns is vertically fixed on the lower surface of each of the two supporting battens; a plurality of bearing battens corresponding to the multiple sets of containing grooves are horizontally arranged between the two supporting battens. The plurality of bearing battens are arranged above the instrument body; a plurality of accommodating sleeves for carrying the digestion tubes are vertically inserted in the upper surface of the bearing batten in the length direction in a penetrating manner; the two ends of the bearing batten are connected with the two supporting battens through a pair of elastic positioning assemblies respectively. The bearing batten can move up and down on the supporting batten through the elastic positioning assembly. The digestion tube taking and placing device is reasonable in structural design and convenient to use, and the digestion tube taking and placing efficiency and effect of the graphite digestion instrument are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite digestion instruments, in particular to a digestion tube taking and placing 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] In the prior art, since the distance between two adjacent receiving slots for placing digestion tubes on the graphite digestion instrument is small, when multiple digestion tubes are sequentially placed in the multiple receiving slots on the graphite digestion instrument, when a certain digestion tube needs to be taken, the inspector's fingers can generally only grasp the top of the digestion tube, and the force point of the fingers is unstable, making it easy to fail to take out the digestion tube; and when the inspector takes out the digestion tube, the fingers may contact the top of other digestion tubes, causing the inspector's fingers to be injured, and there are also problems such as contamination of the tube mouth of the digestion tube. Therefore, it is urgent to study a digestion tube taking and placing mechanism of a graphite digestion instrument to solve the above problems. Utility Model Content

[0004] The utility model provides a digestion tube taking and placing mechanism for 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 is a digestion tube taking and placing mechanism of a graphite digestion instrument, the graphite digestion instrument comprises an instrument body; the upper surface of the instrument body is provided with a plurality of accommodating grooves for placing digestion tubes; the digestion tube taking and placing mechanism comprises a pair of support strips respectively horizontally arranged on opposite sides of the instrument body; a pair of mounting columns are vertically fixed on the lower surfaces of the two support strips; a plurality of bearing strips corresponding to the plurality of accommodating grooves are horizontally arranged between the two support strips; a plurality of the bearing strips are all arranged above the instrument body; a plurality of accommodating sleeves for carrying digestion tubes are vertically interspersed on the upper surface of the bearing strips along the length direction; the two ends of the bearing strips are respectively connected to the two support strips by a pair of elastic positioning components; the bearing strips can move up and down on the support strips through the elastic positioning components.

[0007] As a preferred technical solution of the utility model, the relative inner sides of the two support strips respectively slide against the relative sides of the instrument body; one ends of the two support strips are connected by a positioning strip; and one surface of the positioning strip fits against one side of the instrument body.

[0008] As a preferred technical solution of the utility model, the housing sleeve is a silicone sleeve; the housing sleeve is interference fit with the digestion tube.

[0009] As a preferred technical solution of the utility model, the elastic positioning assembly includes a positioning column that is slidably inserted into the load-bearing slat; the upper end of the positioning column is vertically fixed on the load-bearing slat; a tensioning spring is sleeved on the positioning column; the lower end of the tensioning spring is fixed on the support slat; the upper end of the tensioning spring is fixed on the load-bearing slat; a limiting block is fixed to the lower end of the positioning column; the limiting block is arranged below the support slat; a surface of the limiting block away from the instrument body is rotatably connected to a pull rod; the end of the pull rod away from the limiting block has a hook; the hook can be overlapped on an edge of the support slat away from the instrument body.

[0010] The utility model has the following beneficial effects:

[0011] The utility model places the digestion tube on the instrument body by passing the digestion tube through the accommodating sleeve and plugging it into the accommodating groove. When a certain digestion tube needs to be taken, the bearing strip corresponding to the digestion tube is lifted upwards, so that the digestion tube is driven upwards by the bearing strip, thereby forming a height difference between the digestion tube and other digestion tubes on the instrument body. Then the inspector holds the digestion tube and lifts it upwards to take the digestion tube, and then releases the bearing strip. Under the elastic action of the elastic positioning component, the bearing strip is automatically reset, which not only effectively improves the efficiency and effect of taking and placing the digestion tube of the graphite digestion instrument, but also avoids the problem that the fingers of the inspector may touch the tops of other digestion tubes when taking the digestion tube.

[0012] 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

[0013] 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.

[0014] Figure 1 The utility model is a schematic diagram of the structure of a digestion tube taking and placing mechanism of a graphite digestion instrument.

[0015] Figure 2 for Figure 1 The main view of the structure.

[0016] Figure 3 It is a structural schematic diagram of a graphite digestion instrument in the prior art.

[0017] Figure 4 It is a schematic diagram of the structure of the connection between the supporting slats and the bearing slats of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the elastic positioning component of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1- instrument body, 2- digestion tube, 3- support slat, 4- mounting column, 5- load-bearing slat, 6- elastic positioning assembly, 7- positioning slat, 101- receiving groove, 501- receiving sleeve, 601- positioning column, 602- tensioning spring, 603- limit block, 604- pull rod, 605- hook. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1:

[0023] See also Figure 1-4As shown, the utility model is a digestion tube taking and placing mechanism of a graphite digestion instrument, the graphite digestion instrument comprises a conventional instrument body 1 in the art; the upper surface of the instrument body 1 has a plurality of groups of accommodating grooves 101 for placing digestion tubes 2; the digestion tube taking and placing mechanism comprises a pair of support strips 3 horizontally arranged on opposite sides of the instrument body 1; the lower surfaces of the two support strips 3 are bolted with a pair of vertically arranged mounting columns 4; a plurality of bearing strips 5 corresponding to the plurality of groups of accommodating grooves 101 are horizontally arranged between the two support strips 3; Multiple load-bearing slats 5 are arranged above the instrument body 1; multiple accommodating sleeves 501 for carrying the digestion tube 2 are vertically inserted on the upper surface of the load-bearing slats 5 along the length direction; the accommodating sleeves 501 are silicone sleeves; the accommodating sleeves 501 are located on the load-bearing slats 5 through the horizontal turning limit of the upper and lower ports; the accommodating sleeves 501 are interference fit with the digestion tube 2; the two ends of the load-bearing slats 5 are respectively connected to the two support slats 3 through a pair of elastic positioning components 6; the load-bearing slats 5 can move up and down on the support slats 3 through the elastic positioning components 6. During use, the digestion tube 2 is placed on the instrument body 1 by passing the digestion tube 2 through the accommodating sleeve 501 and plugging it into the accommodating groove 101. When a certain digestion tube 2 needs to be taken, the supporting strip 5 corresponding to the digestion tube 2 is lifted upwards, so that the digestion tube 2 is driven upwards by the supporting strip 5, thereby forming a height difference between the digestion tube 2 and the other digestion tubes 2 on the instrument body 1. Then the inspector holds the digestion tube 2 and lifts it upwards to take the digestion tube 2, and then releases the supporting strip 5. Under the elastic action of the elastic positioning component 6, the supporting strip 5 is automatically reset, which not only effectively improves the efficiency and effect of taking and placing the digestion tubes of the graphite digestion instrument, but also avoids the problem that the inspector's fingers may touch the top of other digestion tubes when taking the digestion tube.

[0024] Among them Figure 2 and Figure 4 As shown, the relative inner sides of the two support slats 3 are respectively in sliding contact with the relative sides of the instrument body 1; one ends of the two support slats 3 are connected by a positioning slat 7; the positioning slat 7 and the support slat 3 are connected by screws; one surface of the positioning slat 7 fits with one side of the instrument body 1. When in use, by designing the relative inner sides of the two support slats 3 to be respectively in sliding contact with the relative sides of the instrument body 1, and designing one surface of the positioning slat 7 to fit with one side of the instrument body 1, a one-to-one correspondence between multiple bearing slats 5 and multiple groups of accommodating grooves 101 can be achieved, which can ensure that the accommodating groove 101 is coaxially designed with the accommodating sleeve 501 directly above it, thereby ensuring the placement efficiency and effect of the digestion tube 2 on the instrument body 1.

[0025] Embodiment 2:

[0026] Based on Example 1, Figure 1-2 and Figure 4-5As shown, the elastic positioning component 6 includes a positioning column 601 which is slidably inserted into the load-bearing slat 5; the upper end of the positioning column 601 is vertically fixed on the load-bearing slat 5; a tensioning spring 602 is sleeved on the positioning column 601; the lower end of the tensioning spring 602 is fixed on the supporting slat 3; the upper end of the tensioning spring 602 is fixed on the load-bearing slat 5; a limiting block 603 is fixed to the lower end of the positioning column 601; the limiting block 603 is arranged below the supporting slat 3; a surface of the limiting block 603 away from the instrument body 1 is rotatably connected to a pull rod 604; a hook 605 is integrally formed at one end of the pull rod 604 away from the limiting block 603; an L-shaped structure is formed between the hook 605 and the pull rod 604; the hook 605 can be overlapped on an edge of the supporting slat 3 away from the instrument body 1. When in use, by lifting the supporting strip 5 upwards, the digestion tube 2 in the accommodating sleeve 501 is prompted to move upward in the accommodating groove 101 and the tensioning spring 602 is stretched, and then the hook 605 is overlapped on an edge of the supporting strip 3 away from the instrument body 1, so that the supporting strip 5 can be locked. Then, after removing the digestion tube 2, the hook 605 is separated from the supporting strip 3. Under the elastic action of the tensioning spring 602, the supporting strip 5 is reset, and the digestion tube 2 on the supporting strip 5 is reinserted into the accommodating groove 101 (at this time, the lower end of the digestion tube 2 is still at a distance from the lower end of the accommodating groove 101, which can prevent the lower end of the digestion tube 2 from hitting the bottom wall of the accommodating groove 101).

[0027] 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. A digestion tube taking and placing 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 groups of receiving grooves (101) for placing digestion tubes (2); the characteristics are: The digestion tube taking and placing mechanism comprises a pair of support strips (3) respectively arranged horizontally on opposite sides of the instrument body (1); a pair of mounting posts (4) are vertically fixed on the lower surfaces of the two support strips (3); a plurality of bearing strips (5) corresponding to the plurality of accommodating grooves (101) are horizontally arranged between the two support strips (3); the plurality of bearing strips (5) are arranged above the instrument body (1); a plurality of accommodating sleeves (501) for carrying the digestion tubes (2) are vertically inserted through the upper surface of the bearing strips (5) along the length direction; the two ends of the bearing strips (5) are respectively connected to the two support strips (3) by a pair of elastic positioning components (6); the bearing strips (5) can move up and down on the support strips (3) through the elastic positioning components (6).

2. The digestion tube taking and placing mechanism of a graphite digestion instrument according to claim 1, characterized in that: The opposite inner sides of the two support strips (3) are in sliding contact with the opposite side sides of the instrument body (1); one end of the two support strips (3) is connected by a positioning strip (7); and one surface of the positioning strip (7) is in contact with one side of the instrument body (1).

3. A digestion tube taking and placing mechanism for a graphite digestion instrument according to claim 1 or 2, characterized in that: The containing sleeve (501) is a silicone sleeve; the containing sleeve (501) and the digestion tube (2) are interference fit.

4. The digestion tube taking and placing mechanism of a graphite digestion instrument according to claim 3 is characterized in that: The elastic positioning component (6) comprises a positioning column (601) which is slidably inserted into the bearing slat (5); the upper end of the positioning column (601) is vertically fixed on the bearing slat (5).

5. The digestion tube taking and placing mechanism of a graphite digestion instrument according to claim 4, characterized in that: The positioning column (601) is sleeved with a tensioning spring (602); the lower end of the tensioning spring (602) is fixed on the supporting slat (3); and the upper end of the tensioning spring (602) is fixed on the bearing slat (5).

6. A digestion tube taking and placing mechanism for a graphite digestion instrument according to claim 4 or 5, characterized in that: A limiting block (603) is fixed at the lower end of the positioning column (601); the limiting block (603) is arranged below the supporting slat (3).

7. The digestion tube taking and placing mechanism of a graphite digestion instrument according to claim 6, characterized in that: A surface of the limit block (603) away from the instrument body (1) is rotatably connected to a pull rod (604); an end of the pull rod (604) away from the limit block (603) has a hook (605); the hook (605) can be overlapped with an edge of the support strip (3) away from the instrument body (1).

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