A high-efficiency four-layer crucible stand

Abstract

The utility model discloses an efficient four-layer crucible rack, including a four-column frame and a lower partition plate, a main support plate, an upper partition plate and a secondary support plate which are sequentially installed on the surface of the four-column frame from bottom to top. The lower partition plate is fixedly connected to the four-column frame, and the main support plate and the secondary support plate are both provided with a plurality of completely penetrating holding holes for the crucible to be embedded and placed. Both sides of the main support plate, the upper partition plate and the secondary support plate are both provided with a double-point locking pin structure for connecting with the outer wall of the four-column frame. The utility model can use a sample delivery fork to deliver and take the crucible rack under the upper partition plate, so that multiple crucibles placed on the four-layer crucible rack can be taken at the same time under high temperature conditions. Compared with the method of taking them one by one, taking the crucibles in batches can reduce the number of operations of the staff, reduce the possibility and risk of errors, and thus improve work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of crucible racks, in particular to a high-efficiency four-layer crucible rack. Background Art

[0002] High-temperature alkali fusion method is a common melting method for soil agricultural chemical analysis. It is mainly used to determine the content of mineral elements such as silicon, boron, iron, aluminum, manganese, calcium, magnesium, potassium, phosphorus, and sodium in the soil. This method uses high-temperature melting of soil samples to completely melt the organic matter and inorganic minerals in the soil, and then converts the melt into a soluble test solution through acid dissolution, dilution and other steps, and finally uses it to analyze and determine the content of various elements in the soil. The carrier for high-temperature alkali fusion method is a crucible. Soil samples and an appropriate amount of flux (usually sodium hydroxide, sodium carbonate, lithium metaborate, lithium tetraborate and mixtures thereof, etc.) are placed in a crucible, and then placed in a high-temperature furnace for melting treatment. During the melting process, the flux reacts with the soil sample to melt the organic matter and inorganic minerals, and then the solution is taken. To take out the crucible, the existing technical means use crucible tongs or crucible forks to take them out from the high-temperature furnace one by one, and there is also a single-layer crucible stand with holes to take them out. In this process, the main function of the single-layer crucible stand is to provide a stable support platform, so that the crucible can be fixed in position during high-temperature treatment and can be easily taken out as a whole after cooling. However, the structure of the single-layer crucible stand with holes has some shortcomings: the sample cannot be taken out immediately at high temperature, and the crucible will be lifted up using the sample fork, and the sample is easy to flip over, which is inconvenient to operate. It can only be taken out after the crucible is cooled. This processing method is inefficient. There is a standard provision (HJ974-2018) that the crucible needs to be taken out at high temperature, especially when a large number of samples need to be processed, which will lead to low work efficiency. In addition, frequent individual crucible removal at high temperature is difficult to operate and prone to operating errors. Utility Model Content

[0003] The purpose of the utility model is to provide an efficient four-layer crucible rack for increasing the number of crucibles placed and efficiently utilizing the space of a high-temperature furnace. Driven by the rack, multiple crucibles can be integrally delivered and sampled at high temperatures to achieve the purpose of batch sampling, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an efficient four-layer crucible rack, comprising a four-column frame and a lower partition plate, a main support plate, an upper partition plate and a secondary support plate installed on the surface of the four-column frame in sequence from bottom to top, the lower partition plate is fixedly connected to the four-column frame, the main support plate and the secondary support plate are each provided with a plurality of completely penetrating holding holes for the crucible to be embedded and placed, both sides of the main support plate, the upper partition plate and the secondary support plate are each provided with a double-point locking pin structure for connecting to the outer wall of the four-column frame, and pull pins for driving the double-point locking pin structure to move are slidably installed on the outer walls of both sides of the main support plate, the upper partition plate and the secondary support plate.

[0005] Preferably, the four-column frame is composed of four triangular columns, the triangular columns are fixed at the corner positions of the top end of the lower partition board, the bottom ends of the triangular columns penetrate to the outside of the lower partition board, and the bottom ends of the triangular columns are provided with inner closing parts.

[0006] Preferably, six containing holes are provided on both the main support plate and the auxiliary support plate.

[0007] Preferably, the upper edge of the containing hole is provided with a chamfered portion.

[0008] Preferably, the dual-point locking pin structure includes a rectangular cavity arranged on one side of the main support plate, and a tongue plate arranged inside the rectangular cavity, locking pin units are fixed on both sides of the back side of the tongue plate, one end of the locking pin unit extends to the inside of the triangular column, one end of the pull pin extends to the inside of the rectangular cavity and is fixedly connected to an outer wall of one side of the tongue plate, and a plurality of equally spaced coil springs are installed on the outer wall of the tongue plate close to the pull pin, and one end of the coil spring is fixedly connected to an inner wall of one side of the main support plate.

[0009] Preferably, a hole which is concentric with the locking pin unit is provided on the outer wall of the triangular column.

[0010] Preferably, the main support plate, the upper partition plate and the auxiliary support plate are all provided with triangular through holes at the corners of the top ends thereof, which are slidably matched with the triangular columns.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the sample delivery fork can be used to deliver the crucible rack under the upper partition plate, so that multiple crucibles placed on the four-layer crucible rack can be taken at the same time under high temperature conditions. Compared with the method of taking them one by one, taking the crucibles in batches can reduce the number of operations of the staff, reduce the possibility and risk of errors, and thus improve work efficiency. The four-layer crucible rack is improved to add two layers of partition plates and two layers of holding holes, which not only increases the number of samples placed and efficiently utilizes the high-temperature furnace space, but also the crucible falls on the partition plate through the holding hole, and the position is fixed without shaking. The sample delivery fork can be used under the partition plate layer, which is convenient for taking and delivering samples as a whole under high temperature conditions, reduces the difficulty of operation, and improves work efficiency.

[0012] In addition, this efficient four-layer crucible rack is equipped with structures that cooperate with each other, such as a main support plate and a double-point locking pin structure. Two crucibles can be lifted upward by a W-shaped sampling fork, or the main support plate, auxiliary support plate and other layered plates can be lifted as a whole, so that multiple crucibles can be separated from the rack together. Compared with the method of taking crucibles one by one, taking crucibles in batches can reduce the number of operations of the staff, reduce the possibility and risk of errors, and thus improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 4 It is a side view structural schematic diagram of the utility model;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the double-point locking pin structure of the utility model;

[0018] In the figure: 1. four-column frame; 101. triangular column; 102. inner opening; 2. lower partition plate; 3. main support plate; 4. upper partition plate; 5. auxiliary support plate; 6. holding hole; 601. chamfered part; 7. pull pin; 8. double-point locking pin structure; 801. rectangular cavity; 802. locking pin unit; 803. tongue plate; 804. spiral spring. DETAILED DESCRIPTION

[0019] 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. 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.

[0020] See also Figure 1-5 The utility model provides an embodiment: an efficient four-layer crucible rack, comprising a four-column frame 1 and a lower partition plate 2, a main support plate 3, an upper partition plate 4 and a secondary support plate 5 which are sequentially installed on the surface of the four-column frame 1 from bottom to top, the lower partition plate 2 is fixedly connected to the four-column frame 1, the main support plate 3 and the secondary support plate 5 are both provided with a plurality of completely penetrating holding holes 6 for the crucible to be embedded and placed, and the main support plate 3 and the secondary support plate 5 are both provided with six holding holes 6. When the W-shaped sampling fork is inserted between the two crucibles, it can ensure that the crucible will not slip or collide during the process of lifting and placing;

[0021] The main support plate 3 and the auxiliary support plate 5 are mainly used to limit and store the crucible to prevent the crucible from shaking or shifting, while the lower partition plate 2 and the upper partition plate 4 are mainly used to support the bottom of the crucible so that the crucible can be stably supported. The lower part of the upper partition plate 4 is the best position for the sample fork to be used.

[0022] Both sides of the main support plate 3, the upper partition plate 4, and the auxiliary support plate 5 are provided with double-point locking pin structures 8 for connecting with the outer wall of the four-column frame 1, and the outer walls of both sides of the main support plate 3, the upper partition plate 4, and the auxiliary support plate 5 are slidably installed with pull pins 7 for driving the double-point locking pin structures 8 to move;

[0023] When separating the pallets, the staff needs to separate the auxiliary pallet 5, the upper partition board 4, and the main pallet 3 in sequence to avoid mutual influence between the layers. In this process, the auxiliary pallet 5, the upper partition board 4, and the main pallet 3 can be detached and installed with the four-column frame 1 through the pull pin 7 and the double-point locking pin structure 8;

[0024] The four-column frame 1 is composed of four triangular columns 101, which are fixed at the corners of the top of the lower partition board 2. The bottom ends of the triangular columns 101 penetrate the outside of the lower partition board 2, and the bottom ends of the triangular columns 101 are provided with inner closing portions 102;

[0025] The upper edge of the holding hole 6 is provided with a chamfered portion 601, and the setting of the chamfered portion 601 can reduce the contact damage of the holding hole 6 to the outer surface of the high-temperature crucible, so that the contact area between the holding hole 6 and the crucible is larger;

[0026] The upper partition plate 4 and the lower partition plate 2 effectively divide the four-layer crucible rack into two groups of spaces, which can reduce the cross contamination of upper and lower samples, while reducing the temperature exchange between the crucibles, reducing the amplitude of temperature fluctuations, and maintaining the temperature of each crucible stable;

[0027] The corners of the top of the main support plate 3, the upper partition plate 4, and the auxiliary support plate 5 are all provided with triangular through holes that slide with the triangular column 101. The triangular through holes enable the main support plate 3, the upper partition plate 4, and the auxiliary support plate 5 to be smoothly assembled with the triangular column 101.

[0028] The double-point locking pin structure 8 includes a rectangular cavity 801 arranged on one side of the main support plate 3, and a tongue plate 803 arranged inside the rectangular cavity 801. Locking pin monomers 802 are fixed on both sides of the back of the tongue plate 803. One end of the locking pin monomer 802 extends to the inside of the triangular column 101. One end of the pull pin 7 extends to the inside of the rectangular cavity 801 and is fixedly connected to the outer wall of one side of the tongue plate 803. A plurality of equally spaced spiral springs 804 are installed on the outer wall of the tongue plate 803 close to the pull pin 7. One end of the spiral spring 804 is fixedly connected to the inner wall of one side of the main support plate 3. The outer wall of the triangular column 101 is provided with a hole that is concentric with the locking pin monomer 802.

[0029] When the connection between the main support plate 3, the upper partition plate 4, the auxiliary support plate 5 and the four-column frame 1 is released by the pull pin 7 and the double-point locking pin structure 8, taking the main support plate 3 as an example, the staff pulls the two opposite pull pins 7 outward synchronously, and the pull pin 7 drives the tongue plate 803 and the locking pin monomer 802 to move, so that the locking pin monomer 802 is withdrawn from the hole on the outer wall of the four-column frame 1. At this time, the coil spring 804 is in a compressed state. When the locking pin monomer 802 is completely withdrawn from the hole on the outer wall of the four-column frame 1, the main support plate 3 and the four-column frame 1 are no longer connected, so that the main support plate 3 is moved upward, so that the main support plate 3 and the four-column frame 1 can be separated. This structural design can quickly separate the support plate from the crucible rack, save operation time, and ensure the stable connection between the support plate and the crucible rack.

[0030] When the embodiment of the present application is in use, the staff first places the high-temperature crucible to be cooled on the main support plate 3 or the auxiliary support plate 5 of the frame through the sampling fork. At this time, the holding holes 6 on the main support plate 3 and the auxiliary support plate 5 are used to store the crucible. When the crucible is placed accurately, the bottom end plane of the crucible will contact the top end plane of the lower partition plate 2 or the upper partition plate 4. The double-layer support plate and the multiple holding holes 6 enable the crucible rack to store multiple crucibles at the same time. When the staff needs to take the crucible on the crucible rack, the staff can use the W-shaped sampling fork to insert two crucibles at one time, that is, the W-shaped sampling fork is located between two adjacent crucibles, and through the W-shaped The sampling fork can lift the two crucibles upwards to facilitate the staff to take the crucibles. The staff can also pull the pull pin 7 so that the movable end of the double-point locking pin structure 8 no longer restricts the sub-pallet 5 and the four-column frame 1, so that the sub-pallet 5 or the main pallet 3 is separated from the four-column frame 1. At this time, the staff can lift the sub-pallet 5 upwards as a whole and separate the sub-pallet 5 from the four-column frame 1, so as to lift the sub-pallet 5 or the main pallet 3 together to the workbench. Compared with the method of taking one by one, taking crucibles in batches can also reduce the number of operations of the staff, reduce the possibility and risk of errors, and thus improve work efficiency.

[0031] In summary, the efficient four-layer crucible rack of this embodiment can use a sample delivery fork to deliver the crucible rack under the upper partition plate, so that multiple crucibles placed on the four-layer crucible rack can be taken out at the same time under high temperature conditions. Compared with the method of taking out crucibles one by one, taking out crucibles in batches can reduce the number of operations of the staff, reduce the possibility and risk of errors, and thus improve work efficiency.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-efficiency four-layer crucible stand, characterized in that: The invention comprises a four-column frame (1) and a lower partition plate (2), a main support plate (3), an upper partition plate (4) and a secondary support plate (5) which are sequentially installed on the surface of the four-column frame (1) from bottom to top. The lower partition plate (2) is fixedly connected to the four-column frame (1). The main support plate (3) and the secondary support plate (5) are provided with a plurality of completely penetrating receiving holes (6) for embedding and placing crucibles inside. Both sides of the main support plate (3), the upper partition plate (4) and the secondary support plate (5) are provided with double-point locking pin structures (8) for connecting with the outer wall of the four-column frame (1). Pull pins (7) for driving the double-point locking pin structures (8) to move are slidably installed on the outer walls of both sides of the main support plate (3), the upper partition plate (4) and the secondary support plate (5).

2. The high-efficiency four-layer crucible stand according to claim 1, characterized in that: The four-column frame (1) is composed of four triangular columns (101), wherein the triangular columns (101) are fixed at the corner positions of the top end of the lower partition board (2), the bottom ends of the triangular columns (101) penetrate to the outside of the lower partition board (2), and the bottom ends of the triangular columns (101) are provided with inner closing portions (102).

3. The high-efficiency four-layer crucible stand according to claim 1, characterized in that: Six containing holes (6) are provided on each of the main support plate (3) and the auxiliary support plate (5).

4. The high-efficiency four-layer crucible stand according to claim 1, characterized in that: The upper edge of the containing hole (6) is provided with a chamfered portion (601).

5. The high-efficiency four-layer crucible stand according to claim 2, characterized in that: The double-point locking pin structure (8) comprises a rectangular cavity (801) arranged on one side of the interior of the main support plate (3), and a tongue plate (803) arranged inside the rectangular cavity (801), and locking pin units (802) are fixed on both sides of the back of the tongue plate (803), one end of the locking pin unit (802) extends to the interior of the triangular column (101), one end of the pull pin (7) extends to the interior of the rectangular cavity (801) and is fixedly connected to an outer wall of one side of the tongue plate (803), and a plurality of equally spaced spiral springs (804) are installed on an outer wall of a side of the tongue plate (803) close to the pull pin (7), and one end of the spiral spring (804) is fixedly connected to an inner wall of one side of the main support plate (3).

6. The high-efficiency four-layer crucible stand according to claim 5, characterized in that: The outer wall of the triangular column (101) is provided with a hole which is concentric with the locking pin unit (802).

7. The high-efficiency four-layer crucible stand according to claim 2, characterized in that: The corner positions of the top ends of the main support plate (3), the upper partition plate (4) and the auxiliary support plate (5) are all provided with triangular through holes that are slidably matched with the triangular pillars (101).

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