Defleshing spray gun for making crustacean specimens and specimen making method

Abstract

The invention discloses a fleshing spray gun for making a crustacean specimen and a specimen making method. The fleshing spray gun comprises a gun barrel, a gun cover, a gun head, a shaft body, a first circular plate, a second circular plate, a third circular plate and a compression spring, wherein the gun head is detachably mounted on the gun barrel through a mounting piece; the shaft body is vertically mounted at the central position of the gun cover in a sliding and penetrating manner; the first circular plate, the second circular plate and the third circular plate are positioned in the gun barrel; and the limiting assembly is used for locking the shaft body. Wherein the first circular plate, the second circular plate and the third circular plate are vertically and fixedly arranged on the shaft body in a sleeving manner, and the diameters of the first circular plate, the second circular plate and the third circular plate are consistent with the inner diameter of a gun barrel. The device is simple in structure, thorough in meat removal, time-saving and labor-saving, low in probability of damage to biological individuals due to the fact that crustacean appendages do not need to be split one by one, easy to manufacture crustacean dried specimens, high in working efficiency, low in price and beneficial to popularization and application.

Description

Technical Field

[0001] The invention relates to the technical field of crustacean specimen preparation, in particular to a fleshing spray gun for crustacean specimen preparation, and also to a method for preparing specimens by using the fleshing spray gun. Background Art

[0002] In routine popular science and teaching activities as well as collections, common crustacean specimens include dried specimens and soaked specimens. Soaked crustacean specimens refer to specimens that are preserved in a specific preservation solution without removing the flesh after the death of the crustacean individual, so as to preserve its external characteristics during life; dried specimens are made by removing all the tissues in the exoskeleton, degreasing and bleaching, and then gluing and fixing them with glue.

[0003] The above two specimen preparation methods are respectively suitable for crustaceans of different sizes. For crustaceans that are too small to remove flesh and organs, they are often preserved by immersion in a preservative solution. The preparation of immersed specimens is simple, but the unique colors of crustaceans tend to gradually fade, making it difficult to reflect the true colors, which is insufficient in teaching and appreciation. Dried specimens can preserve and present the original state of the specimen to the greatest extent, which is of great significance for observing the appearance and morphology of crustaceans. Dried crustacean specimens are mostly used for popular science displays in museums and specimen halls, or for education and teaching in related majors in higher or vocational colleges.

[0004] Traditional crustacean preparation methods often require splitting and removing flesh from each joint. The more times the specimens are split, the more likely they are to break. Splitting each joint greatly affects the efficiency of specimen preparation. The exoskeleton becomes brittle after drying and can easily break during disassembly or installation, affecting the value of the specimen, greatly reducing its research value, ornamental value, and commercial value. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a flesh removal spray gun and a specimen preparation method for preparing crustacean specimens, so as to efficiently obtain dried specimens with a low probability of damage to individual organisms without having to separate the crustacean appendages one by one.

[0006] A flesh removal spray gun for preparing crustacean specimens, comprising a gun barrel, a gun cover and a gun head detachably mounted on the gun barrel via a mounting member; The meat removal spray gun also includes a shaft body that vertically slides through the center of the gun cover, a first circular plate, a second circular plate and a third circular plate located in the gun barrel, a compression spring located between the gun cover and the third circular plate, and a limit assembly for locking the shaft body; The first circular plate, the second circular plate and the third circular plate are all vertically fixedly sleeved on the shaft body, and the diameters of the first circular plate, the second circular plate and the third circular plate are all consistent with the inner diameter of the gun barrel.

[0007] In one of the embodiments, the gun head is nested in the end of the mounting member facing away from the gun barrel, and the gun head is a conical structure that is thick at the top and short at the bottom; thread grooves are provided at both ends of the inner wall of the gun barrel.

[0008] Furthermore, the mounting piece is screwed on one end of the gun barrel, and the gun cover is screwed on the other end of the gun barrel.

[0009] In one of the embodiments, the first circular plate, the second circular plate and the third circular plate are arranged in parallel from bottom to top; a fourth circular plate is fixedly installed at the end of the shaft body exposed from the gun cover, and the fourth circular plate is arranged in parallel above the third circular plate; a sealing ring is filled between the first circular plate and the second circular plate, and the sealing ring is fixedly sleeved on the shaft body.

[0010] Furthermore, the first circular plate is arranged at the end of the shaft body facing away from the fourth circular plate; and the sealing ring is in conflict with the gun barrel.

[0011] In one embodiment, the compression spring is made of stainless steel, and the compression spring is fixed to the third circular plate.

[0012] In one embodiment, the limit assembly includes a positioning groove provided at a side wall corresponding to the shaft body, and a limit block adapted to the positioning groove; the limit block is inserted on the shaft body through the positioning groove, and a slot for positioning the limit block is provided on the gun barrel.

[0013] Furthermore, the positioning groove is a four-cone structure; the positioning groove is located between the second circular plate and the third circular plate, and the positioning groove is opened close to the second circular plate.

[0014] A specimen preparation method comprises the following steps: S1 provides the target; S2: operating the de-fleshing spray gun for preparing crustacean specimens to de-flesh the target object; S3 performs fat removal on the target object after meat removal; S4 performs internal antiseptic treatment on the exoskeleton of the target object after fat removal; S5 fills the interior of the exoskeleton of the target object after internal antiseptic treatment; S6 posture adjustment; The surface of the S7 exoskeleton is treated with anti-corrosion and color preservation.

[0015] In one embodiment, the target object after meat removal is immersed in 75% alcohol for fat removal; and an alum solution is injected into the exoskeleton of the target object after fat removal for preservation.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The flesh removal spray gun of the present invention has a simple structure, can remove flesh thoroughly, save time and effort, does not need to separate the appendages of crustaceans one by one, so the probability of damage to biological individuals is low, and it is easy to prepare dried crustacean specimens. It has high work efficiency and low price, which is conducive to popularization and use.

[0017] The specimen preparation method of the present invention can obtain a dried specimen with a low probability of damage to the biological individual without separating the appendages of the crustaceans one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a perspective view of a flesh removal spray gun for preparing crustacean specimens provided in Example 1 of the present invention.

[0019] Figure 2 Shown Figure 1 Partial exploded view.

[0020] Figure 3 The figure shows a water adding diagram of a flesh removal spray gun for preparing crustacean specimens provided in Example 1 of the present invention, wherein the arrow in the figure indicates the moving direction of the shaft.

[0021] Figure 4 The figure shows a fleshing diagram of a fleshing spray gun for preparing crustacean specimens provided in Example 1 of the present invention, wherein the arrow in the figure indicates the moving direction of the shaft.

[0022] Main component symbols 1. Gun barrel; 2. Gun head; 3. Mounting part; 4. Gun cover; 5. Shaft; 6. First circular plate; 7. Second circular plate; 8. Third circular plate; 9. Fourth circular plate; 10. Sealing ring; 11. Compression spring; 12. Limiting assembly; 121. Positioning groove; 122. Limiting block.

[0023] The above description of the main component symbols is combined with the accompanying drawings and specific implementation methods to further illustrate the present invention in detail. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings.

[0025] Example 1 See also Figure 1-2The present embodiment provides a flesh removal spray gun for preparing crustacean specimens, which includes a gun barrel 1, a gun cover 4, a gun head 2 detachably mounted on the gun barrel 1 via a mounting member 3, an axle body 5 vertically slidingly penetrating and mounted at the center of the gun cover 4, a first circular plate 6, a second circular plate 7 and a third circular plate 8 located in the gun barrel 1, a compression spring 11 located between the gun cover 4 and the third circular plate 8, and a limit assembly 12 for locking the axle body 5.

[0026] The inner wall of the gun barrel 1 is provided with threaded grooves at both ends, the mounting member 3 is screwed on the corresponding end of the gun barrel 1, and the gun cover 4 is screwed on the corresponding other end of the gun barrel 1. The gun head 2 is nested in the end of the mounting member 3 facing away from the gun barrel 1, and the gun head 2 is a conical structure that is thick on the top and short on the bottom. In this embodiment, based on the detachable installation design of the gun head 2, the user can select the most suitable caliber of the gun head 2 according to the diameter of the articular opening of the ventral foot of different crustaceans. It should be noted that when actually installing the gun head 2, it is necessary to ensure that one end of the gun head 2 is firmly screwed into the mounting member 3 to resist water pressure to prevent the gun head 2 from being washed out by water and falling off.

[0027] The first circular plate 6, the second circular plate 7 and the third circular plate 8 are all vertically fixedly sleeved on the shaft body 5, and the diameters of the first circular plate 6, the second circular plate 7 and the third circular plate 8 are all consistent with the inner diameter of the gun barrel 1, and the first circular plate 6, the second circular plate 7 and the third circular plate 8 are arranged in parallel from bottom to top. A fourth circular plate 9 is fixedly installed at the end of the shaft body 5 exposed from the gun cover 4, and the fourth circular plate 9 is arranged in parallel above the third circular plate 8, based on the fourth circular plate 9 to provide a force application point, so that the user can operate the shaft body 5 to push and pull. The first circular plate 6 is arranged at the end of the shaft body 5 facing away from the fourth circular plate 9. It should be noted that in this embodiment, the distance between the second circular plate 7 and the third circular plate 8 in the inner shaft should exceed the distance between the third circular plate 8 and the gun cover 4 after the compression spring 11 is fully released, so that the third circular plate 8 will not interfere with the spring limit assembly 12.

[0028] A sealing ring 10 is filled between the first circular plate 6 and the second circular plate 7, and the sealing ring 10 is fixedly sleeved on the shaft body 5. The sealing ring 10 and the gun barrel 1 are in conflict with each other, and a sealed space is formed inside the gun barrel 1 based on the sealing ring 10, thereby preventing water from overflowing during the process of pushing / pulling the shaft body 5.

[0029] The compression spring 11 is made of stainless steel, and the compression spring 11 is fixed to the third circular plate 8. The limiting assembly 12 includes a positioning groove 121 provided at a side wall corresponding to the shaft body 5, and a limiting block 122 adapted to the positioning groove 121. The positioning groove 121 is a four-cone structure, and the positioning groove 121 is located between the second circular plate 7 and the third circular plate 8, and the positioning groove 121 is provided close to the second circular plate 7. The limiting block 122 is inserted into the shaft body 5 through the positioning groove 121, and a slot for positioning the limiting block 122 is provided on the gun barrel 1.

[0030] The meat removal spray gun of this embodiment is used as follows: Please refer to Figure 3 When pumping water, the gun head 2 extends below the liquid level of the water cup and remains in a vertical state, and then the limit block 122 is pulled out of the positioning groove 121. The compression spring 11 in the extended state rebounds due to the loss of restriction, and drives the shaft body 5 to move upward. At this time, water is pressed into the gun barrel 1 along the gun head 2 and stored in the space formed when the first circular plate 6 moves upward with the shaft body 5; Please continue reading Figure 4 When removing the meat, the gun head 2 is inserted into the broken ventral foot joint of the crustacean, and then the shaft body 5 is pushed down to use the squeezing effect of the first circular plate 6 to make water ejected along the gun head 2 and injected into the crab's leg. Under the dual effects of water flow and water pressure, the muscle tissue of the crab leg is directly flushed out from the end of the ventral foot tip to its base section, thereby achieving the effect of removing the appendage meat.

[0031] In summary, the fleshing spray gun of this embodiment has the following advantages compared to the traditional model of preparing crustacean specimens which requires splitting and fleshing each joint: the fleshing spray gun of this embodiment has a simple structure, removes flesh thoroughly, and saves time and effort; there is no need to split the crustacean appendages one by one, so the chance of damage to individual organisms is low; it is easy to prepare dried crustacean specimens; it has high work efficiency and low price, which is conducive to promotion and use.

[0032] Example 2 This embodiment provides a specimen preparation method, which is applied to the preparation of crustacean specimens. The preparation method comprises the following steps: S1 provides crabs; This embodiment is described by taking crabs without broken limbs, fresh and in good condition as the target object.

[0033] S2: operating the de-meat spray gun provided in Example 1 to de-meat the crab; After the crab is cleaned, shaped and the exoskeleton attachments are removed, the meat removal spray gun is used for meat removal. First, the crab's cephalothorax is opened to reveal the internal organs, and its internal organs such as crab gills, heart, stomach, etc. are taken out. After the film tissue and residual internal organs remaining in the cephalothorax are disposed of, the film at the joints at the ends of the five pairs of crab's appendages is cut open respectively, and a meat removal spray gun is used and a gun head 2 of a suitable size is selected. The gun head 2 is first inserted into the broken ventral foot joint of the crab, and the shaft body 5 is pushed down to eject water along the gun head 2 and inject it into the crab's leg by means of squeezing force. Under the dual action of water flow and water pressure, the muscle tissue of the crab leg is directly flushed out from the end of the ventral foot tip to its base section, so as to achieve the effect of removing the meat of the appendage.

[0034] S3 performs fat removal on the crab after meat removal; Soak the crabs after removing the meat in 75% alcohol and change the liquid until the lipids attached to the crab exoskeleton are removed. Degreasing also removes odors and kills bacteria. It should be noted that soaking in alcohol for too long will cause discoloration on the surface of the crab exoskeleton. Therefore, the crabs need to be taken out immediately after degreasing is completed.

[0035] S4 performs internal antiseptic treatment on the exoskeleton of the crab after defatting; After the fat is removed, an alum solution is injected into the exoskeleton of the crab for preservation. It should be noted that the time the alum solution remains inside the exoskeleton is appropriately extended according to the surface area of ​​the crab exoskeleton, and generally requires soaking for several hours.

[0036] S5 fills the interior of the exoskeleton of the crab after the internal antiseptic treatment; It should be noted that S5 is for larger crustaceans such as those with a body length of more than 10 cm. The method of filling the interior of the exoskeleton is specifically performed as follows: use thin iron wire and ultra-light clay to simulate muscle tissue for internal filling, and the internal filling of the exoskeleton makes large specimens less susceptible to damage. Ultra-light clay is mainly made by foaming polymer material foaming powder (such as vacuum microspheres), and then physically mixed with materials such as polyethanol, cross-linking agent, glycerin, etc. in a certain proportion. Ultra-light clay can be purchased directly on the market.

[0037] S6 posture adjustment; The method of posture adjustment is specifically performed as follows: placing the crab on a polystyrene board and piercing the polystyrene board with a thumbtack to apply support force to the specimen; after the posture adjustment is completed, using epoxy resin glue to reinforce the joints, and waiting for it to dry before proceeding to the next step.

[0038] The surface of the S7 exoskeleton is treated with anti-corrosion and color preservation.

[0039] After the crustacean specimens are arranged and the epoxy resin glue is completely dry, the crustacean exoskeleton is sprayed with acrylic resin varnish to isolate the surface of the crustacean exoskeleton from oxygen to achieve the effect of corrosion protection and color preservation. Acrylic resin varnish needs to be sprayed multiple times to achieve the effect of completely isolating oxygen. Generally, it needs to be sprayed three to five times depending on the amount of single spraying.

[0040] In summary, the preparation method of this embodiment has the following advantages compared to the current preparation mode of crustacean specimens: the preparation method of this embodiment can obtain dried specimens with a low probability of damage to individual organisms without having to separate the crustacean appendages one by one.

[0041] The naming of each component involved is based on its function described in the specification and is not limited to the specific terms used in the present invention. Those skilled in the art may also choose other terms to describe the names of the components of the present invention.

Claims

1. A flesh removal spray gun for preparing crustacean specimens, comprising a gun barrel (1), a gun cover (4), and a gun head (2) detachably mounted on the gun barrel (1) via a mounting member (3); It is characterized in that The meat removal spray gun further comprises a shaft (5) vertically slidably penetrating the center of the gun cover (4), a first circular plate (6), a second circular plate (7) and a third circular plate (8) located in the gun barrel (1), a compression spring (11) located between the gun cover (4) and the third circular plate (8), and a limit assembly (12) for locking the shaft (5); The first circular plate (6), the second circular plate (7) and the third circular plate (8) are all vertically fixedly sleeved on the shaft body (5), and the diameters of the first circular plate (6), the second circular plate (7) and the third circular plate (8) are all consistent with the inner diameter of the gun barrel (1).

2. The flesh removal spray gun for preparing crustacean specimens according to claim 1, characterized in that: The gun head (2) is nested in the end of the mounting member (3) facing away from the gun barrel (1), and the gun head (2) is a conical structure that is thick at the top and short at the bottom; The gun barrel (1) has thread grooves at both ends of its inner wall.

3. The flesh removal spray gun for preparing crustacean specimens according to claim 2, characterized in that: The mounting member (3) is screwed onto one end of the gun barrel (1), and the gun cover (4) is screwed onto the other end of the gun barrel (1).

4. The flesh removal spray gun for preparing crustacean specimens according to claim 1, characterized in that: The first circular plate (6), the second circular plate (7) and the third circular plate (8) are arranged in parallel from bottom to top; a fourth circular plate (9) is fixedly mounted at the end of the shaft body (5) exposed from the gun cover (4), and the fourth circular plate (9) is arranged in parallel above the third circular plate (8); A sealing ring (10) is filled between the first circular plate (6) and the second circular plate (7), and the sealing ring (10) is fixedly sleeved on the shaft body (5).

5. The flesh removal spray gun for preparing crustacean specimens according to claim 4, characterized in that: The first circular plate (6) is arranged at the end of the shaft body (5) facing away from the fourth circular plate (9); the sealing ring (10) and the gun barrel (1) are in conflict with each other.

6. The flesh removal spray gun for preparing crustacean specimens according to claim 1, characterized in that: The compression spring (11) is made of stainless steel, and the compression spring (11) and the third circular plate (8) are fixed to each other.

7. The flesh removal spray gun for preparing crustacean specimens according to claim 1, characterized in that: The limiting assembly (12) comprises a positioning groove (121) provided at a side wall corresponding to the shaft body (5), and a limiting block (122) adapted to the positioning groove (121); The limit block (122) is inserted into the shaft body (5) through the positioning groove (121), and a slot for positioning the limit block (122) is provided on the gun barrel (1).

8. The flesh removal spray gun for preparing crustacean specimens according to claim 7, characterized in that: The positioning groove (121) has a four-cone structure; The positioning groove (121) is located between the second circular plate (7) and the third circular plate (8), and the positioning groove (121) is opened close to the second circular plate (7).

9. A specimen preparation method, characterized in that: The following steps are involved: S1 provides the target; S2: operating the fleshing spray gun for preparing crustacean specimens as claimed in any one of claims 1 to 8 to perform fleshing treatment on the target object; S3 performs fat removal on the target object after meat removal; S4 performs internal antiseptic treatment on the exoskeleton of the target object after fat removal; S5 fills the interior of the exoskeleton of the target object after internal antiseptic treatment; S6 posture adjustment; The surface of the S7 exoskeleton is treated with anti-corrosion and color preservation.

10. A specimen preparation method according to claim 9, characterized in that: Soak the object after meat removal in 75% alcohol for fat removal; After defatting, an alum solution is injected into the exoskeleton of the target object for preservation.

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