Device for preparing ligustici sinensis double-navel snail simulant

Abstract

The utility model provides a device for preparing a ligusticum biumbilical snail simulant, which comprises a material preparation barrel and a mold, and the material preparation barrel is used for containing rosin, heating the rosin and liquefying the rosin into a hot melt material with rheological property; the mold comprises two symmetrically-arranged mold plates, a hinge connecting one ends of the two mold plates, a pressurizing handle arranged at the other ends of the mold plates and a heat insulation material wrapping the mold plates, each mold plate is provided with a semi-ligusticum double-navel spiral groove, and the inner surface of each semi-ligusticum double-navel spiral groove is evenly coated with photoinduced energy storage noctilucent powder in advance. And putting the hot melt material into the inner surface of the semi-ligusticum double-navel spiral groove, and pressing to form a cake-shaped pressed part, so as to obtain the simulated ligusticum double-navel spiral. Through cooperation of the material preparation barrel and the mold, the whole manufacturing process only needs five steps of material preparation, heating melting, photo-induced energy storage noctilucent powder smearing, mold pressing and condensation solidification, and the manufacturing device has the advantages that the manufacturing process is simple, the manufacturing period is short, the manufacturing cost is low, and the similarity degree of the ligusticum double-navel snails is high.

Description

Technical Field

[0001] This utility model relates to the fields of water conservancy, schistosomiasis control, and public health technology, specifically a device for preparing simulants of the straw-like snail *Dystomata*. Background Technology

[0002] Schistosomiasis is a major infectious disease that seriously endangers the health and safety of the people and affects the economic and social development of the affected areas. It is highly infectious, has many transmission links, and is widespread.

[0003] Existing research indicates that the spread of intermediate host snails (such as *Diplostomum chinense*) is a prerequisite for the transmission of schistosomiasis, and controlling the spread of intermediate host snails can effectively block the spread and prevalence of schistosomiasis in the local area. Water management measures are one of the important measures for controlling the spread of intermediate host snails. A thorough understanding of the movement characteristics of *Diplostomum chinense* in water is crucial for the development of control measures and the determination of relevant parameters.

[0004] As a freshwater aquatic snail, the survival, development, habitat, and reproduction of *Diplodocus gracilis* are closely related to water. When moving in water, *Diplodocus gracilis* is affected by various forces, including its own weight, water resistance, and the thrust of the current. Previously, the movement patterns of intermediate host snails in water were mainly based on the movement characteristics of sediment in water, establishing relevant formulas to describe their settling and initiation characteristics. Since *Diplodocus gracilis* is a tropical aquatic snail, indoor rearing requires extensive experience and strict experimental conditions. Slight negligence can lead to the mortality of *Diplodocus gracilis*, making it difficult to obtain a large and stable snail population for indoor water control research. Therefore, developing a simulated *Diplodocus gracilis* for experimental research can provide a deeper understanding of its movement patterns in water, supporting the development of subsequent water control measures and the determination of relevant parameters. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a device for preparing a simulated *Dictyophora indicum*, which can ensure that the simulated *Dictyophora indicum* has the same density as the actual *Dictyophora indicum*, thereby ensuring that the movement law of the simulated *Dictyophora indicum* in water flow is highly similar to that of the actual *Dictyophora indicum*. At the same time, the surface of the simulated *Dictyophora indicum* is uniformly coated with photoluminescent powder, which greatly facilitates the tracking and analysis of the movement trajectory of *Dictyophora indicum* in water.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An apparatus for preparing a simulant of *Dystomum chinense* includes a material preparation tank and a mold. The material preparation tank is used to hold rosin and liquefy the rosin by heating it into a hot melt material with rheological properties. The mold includes two symmetrically arranged templates, a hinge connecting one end of the two templates, a pressure handle located at the other end of the templates, and a heat-insulating material covering the templates. Each template has a semi-spindle-shaped groove. The inner surface of the semi-spindle-shaped groove is pre-coated with photoluminescent powder. The hot melt material is placed into the mold with the photoluminescent powder evenly coated on the inner surface of the semi-spindle-shaped groove and pressed to form a disc-shaped pressed part, thus obtaining a simulated *Dystomum chinense*.

[0008] Furthermore, the rosin is a transparent solid, slightly yellow or light yellow in color, with a softening point ≥76.0℃ and an average density of 1.06~1.085 g / cm³. 3 .

[0009] Furthermore, the preparation hopper is made of ceramic or steel that can withstand high-temperature rosin.

[0010] Furthermore, the template is made of ceramic, plastic, or steel plate that can withstand high-temperature rosin.

[0011] Furthermore, the pressure handles on the two templates can press the snap fasteners together.

[0012] Furthermore, the simulated *Dictyophora indicum* has a disc-shaped morphology, a diameter of 9–12 mm, a height of 3 mm, and an average density of 1.06–1.085 g / cm³. 3 .

[0013] This invention has a simple and practical structure. Through the combination of the material preparation bucket and the mold, the entire production process only requires five steps: material preparation, heating and melting, coating with photoluminescent powder, molding and solidification. It has the advantages of simple production process, short production cycle, low production cost and high similarity to the straw snail. Attached Figure Description

[0014] Figure 1 This is a process flow diagram of simulating the double-umbilical snail using this utility model;

[0015] Figure 2 This is a plan view of the mold in this utility model;

[0016] Figure 3 This is a side view of the mold in this utility model.

[0017] In the diagram: 1—Rosin, 2—Preparation bucket, 3—Mold, 4—Template, 5—Hinge, 6—Pressure handle, 7—Insulation material, 8—Half-straw double-umbilical spiral groove, 9—Photoluminescent energy storage powder. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Figure 1 The diagram shows the process flow chart for simulating the double-umbilical snail of straw using this utility model. The simulated double-umbilical snail of straw is made by heating and melting rosin 1 in a preparation barrel 2, and then pressing and solidifying it in a mold 3 to form a pressed part. Before pressing, photoluminescent powder 9 is evenly coated on the inner surface of the mold groove.

[0020] The rosin 1 is a transparent solid, slightly yellow or light yellow in color, with a softening point ≥76.0℃ and an average density of 1.06~1.085 g / cm³. 3 .

[0021] The preparation bucket 2 is a common container made of ceramic or steel that can withstand high-temperature rosin. The preparation bucket 2 itself has good separability from the rosin 1 to prevent them from sticking together.

[0022] As shown in the figure Figure 3 As shown, the mold 3 includes two symmetrically arranged templates 4, a hinge 5 connecting one end of the two templates 4, a pressure handle 6 located at the other end of the template 4, and heat insulation material 7 covering the templates 4. Each template 4 has a semi-straw double-umbilical spiral groove 8, made of ceramic, plastic, or steel plate that can withstand high-temperature rosin; the template 4 itself has good separability from the rosin 1, preventing the pressed simulated straw double-umbilical spiral from solidifying and sticking to it after solidification in the semi-straw double-umbilical spiral groove 8. The hinge 5 is located on one side of the template 4, seamlessly connecting the two templates 4. The pressure handle 6 is located on the other side of the template 4, and the pressure handle 6 on the two templates 4 can be pressed together. In this way, the hot melt rosin material can be pressed together between the two templates 5 to form a disc-shaped pressed part. The pressure handle 6 is wrapped with heat insulation material 7 to avoid burns during operation.

[0023] The photoluminescent powder 9 is a powdery substance with luminescent properties. It is pre-coated evenly onto the inner surface of the semi-stalked double-umbilical spiral groove 8. After cooling and solidification, the photoluminescent powder 9 fuses with the simulated stalked double-umbilical spiral surface material (i.e., rosin), making it resistant to water washing. The resulting simulated stalked double-umbilical spiral is disc-shaped, with a diameter of 9–12 mm, a height of 3 mm, and an average density of 1.06–1.085 g / cm³. 3 .

[0024] The preparation of a simulated *Dystomata hymenata* using this invention includes the following steps:

[0025] Preparation: Rosin 1 is heated in preparation tank 2 and liquefied into Bingham hot melt material with rheological properties;

[0026] Apply waterproof luminous powder: Apply the photoluminescent powder 9 evenly to the inner surface of the semi-straw double-umbilical spiral groove 8 of the mold 3;

[0027] Model pressing: The hot melt material is placed into the mold 3, which has a photoluminescent powder 9 evenly coated on the inner surface of the semi-straw double-umbilical spiral groove 8, and pressed.

[0028] Condensation and solidification: The pressed parts are condensed and solidified at room temperature.

[0029] This model requires only five steps to make: material preparation, heating and melting, applying photoluminescent powder, model pressing, and condensation. The process is simple, clear, and easy to operate and master. This simulated *Dictyophora indusiata* snail is convenient and quick to produce, allowing for batch production simultaneously with short production time and high efficiency. The raw materials required for this simulated *Dictyophora indusiata* snail are common rosin and photoluminescent powder, which are readily available and inexpensive. The production process has no special environmental requirements, resulting in low production costs. The simulated *Dictyophora indusiata* snail produced by this method has the same density as the actual snail. Furthermore, the use of a rigid mold pressing process ensures that the simulated snail's shape is similar to the actual snail. The bulk density of the simulated *Dictyophora indusiata* snail in this invention is 1.06~1.085 g / cm³. 3 The simulated size of *B. spp.* is consistent with the actual density of *B. spp.*, and the average size of the simulated *B. spp.* is consistent with the actual average size of *B. spp.*, thus effectively ensuring the high similarity between the simulated movement pattern of *B. spp.* in water flow and the actual *B. spp.*

[0030] This invention has the advantages of simple manufacturing process, convenient and quick manufacturing, low manufacturing cost, and high similarity, making it suitable for large-scale application in the study of the hydrodynamic characteristics and movement laws of the straw-like double-umbilical snail.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An apparatus for preparing *Dystomata hygroscopica* simulants, characterized in that: The system includes a preparation bucket and a mold. The preparation bucket is used to hold rosin and liquefy it by heating it into a hot melt material with rheological properties. The mold includes two symmetrically arranged templates, a hinge connecting one end of the two templates, a pressure handle at the other end of the templates, and heat-insulating material covering the templates. Each template has a semi-straw double-umbilical spiral groove. The inner surface of the semi-straw double-umbilical spiral groove is pre-coated with photoluminescent powder. The hot melt material is placed into the mold with the photoluminescent powder evenly coated on the inner surface of the semi-straw double-umbilical spiral groove and pressed to form a disc-shaped pressed part, thus obtaining a simulated straw double-umbilical spiral. The rosin is a transparent solid with a slightly yellow or light yellow color, a softening point ≥76.0℃, and an average density of 1.06~1.085g / cm³. 3 The simulated *Dictyophora indicum* is disc-shaped, with a diameter of 9–12 mm, a height of 3 mm, and an average density of 1.06–1.085 g / cm³. 3 .

2. The apparatus for preparing *Dystomata hygroscopica* mimics as described in claim 1, characterized in that: The preparation hopper is made of ceramic or steel that can withstand high-temperature rosin.

3. The apparatus for preparing *Dictyophora indicum* mimics as described in claim 1, characterized in that: The template is made of ceramic, plastic, or steel plate that can withstand high-temperature rosin.

4. The apparatus for preparing *Dictyophora indicum* mimics as described in claim 1, characterized in that: The pressure handles on the two templates can press the snap fasteners together.

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