CN209931262U

CN209931262U - Silkworm pupa male and female distinguishing observation platform for teaching experiment

Info

Publication number: CN209931262U
Application number: CN201920401420.9U
Authority: CN
Inventors: 刘慧勤; 田帅; 王正正; 杨玲玲; 杨森; 朱兰兰
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-01-14
Anticipated expiration: 2029-03-27

Abstract

The utility model discloses a silkworm pupa sex distinguishing observation platform for teaching experiments, which comprises a magnifier, a magnifier supporting rod, a bracket, a light supplementing device and a pupa carrying platform, wherein the magnifier is movably connected with the magnifier supporting rod; carry and be equipped with on the pupa platform and be used for controlling the pressure pupa clamp that the pupa wrench movement, press the pupa to press and press including magnetism film material board, silica gel film and U type magnet, be equipped with the recess that is used for placing the pupa on the magnetism film material board, when the pupa was placed in the recess, silica gel film was used for covering the first half of pupa, U type magnet pressed on silica gel film and cooperateed with magnetism film material board and controls the pupa body in U type magnet to control the pupa body wrench movement. The utility model discloses possess the pupa body fixed, light filling and enlarge the function, can improve and distinguish the accuracy, make things convenient for the laboratory to observe the research.

Description

Silkworm pupa male and female distinguishing observation platform for teaching experiment

Technical Field

The utility model discloses it is relevant with silkworm breeding technical field, specifically be a can clearly observe the platform of silkworm chrysalis male and female individuality character for silkworm breeding and other teaching activities.

Background

The silkworm pupa identification work is usually completed by identification personnel with abundant experience, and the silkworm pupa male and female identification accuracy is ensured through two procedures of primary detection and secondary detection according to the appearance characteristics of the silkworm pupa. The female pupa and the male pupa have different appearance characteristics, the female pupa is relatively large, and the tail end of the abdomen is relatively round; male pupae are thin and small, and the tail end of abdomen is sharp. But usually, the female pupae are mainly distinguished from the sex characteristics, namely, the female pupae are positioned in the center of the ventral surface of the 8 th link and have an X-shaped longitudinal line from the front edge to the rear edge; the male pupae has a small concave point in the center of the ventral surface of the 9 th link, so that male and female pupae can be effectively identified according to the difference in sexual characteristics.

However, the biggest difficulty in the silkworm pupa male and female identification process is how to correctly distinguish the characteristics of male and female pupa bodies under the condition of ensuring that the pupa bodies are not damaged, which is due to the following reasons: 1. in the process of identifying male and female silkworm pupas, the silkworm pupas still have certain movement capacity, and identification personnel can exert excessive force in order to control the twisting of the silkworm pupas, so that the silkworm pupas are damaged, and the later normalization of moths is influenced. 2. The male and female silkworm pupae are usually distinguished according to the difference of male and female silkworm pupae in sex characteristics, but under the normal condition, the indoor illumination brightness is weak, the accuracy of male and female silkworm pupae identification can be seriously influenced, and then the later-stage breeding problem can be caused. 3. The identification of silkworm chrysalis can all meet often in actual production and teaching, but because the pupa body is less, the sexual character is not obvious, so initial stage contact can not effectual identification, and at the teaching in-process, the student also can not effectual observation mr explain the specific part on the silkworm chrysalis.

SUMMERY OF THE UTILITY MODEL

Teaching content and the artifical unfavorable factor that distinguishes the silkworm pupa sex of distinguishing are distinguished to present silkworm pupa sex, the utility model provides a silkworm pupa sex that can be used to laboratory teaching and use differentiates observation platform, the device simple structure, easy to operate can effectual improvement teaching in-process silkworm body observe the clarity to and the artifical accuracy of distinguishing.

In order to solve the technical problem the utility model discloses a following technical scheme:

a silkworm pupa sex discernment observation platform for teaching experiments comprises a magnifying glass, a magnifying glass supporting rod, a support, a light supplementing device and a pupa carrying platform, wherein the magnifying glass is movably connected with the magnifying glass supporting rod and can freely adjust the angle; carry the pupa bench on be equipped with the pressure pupa clamp that is used for controlling the pupa wrench movement, the pressure pupa clamp including magnetism film material board, silica gel film and U type magnet, be equipped with the recess that is used for placing the pupa on the magnetism film material board, when the pupa was placed in the recess, the silica gel film was used for covering the first half of pupa, U type magnet pressed on silica gel film and cooperateed with magnetism film material board and is controlled the pupa body in U type magnet to control the pupa body wrench movement.

The observation platform still include the support bracing piece, support bracing piece one end and support swing joint, the other end and magnifying glass bracing piece swing joint, through adjusting the angle between support and the support bracing piece, between support bracing piece and the magnifying glass bracing piece, can adjust the angle that the magnifying glass aimed at year pupa platform.

Magnifying glass bracing piece be connected with the leg rest bracing piece through first elasticity screw, the leg rest bracing piece passes through second elasticity screw and leg joint, the light filling ware passes through third elasticity screw and leg joint, carry pupa platform and pass through fourth elasticity screw and leg joint.

The observation platform also comprises a base, and the bracket is fixed on the base through a fifth tightening screw; and a switch for controlling the brightness of the light supplement device is also arranged on the base.

The utility model discloses following beneficial effect has:

(1) at the in-process of differentiateing the male and female of silkworm pupa, the self wrench movement of silkworm pupa is unavoidable, presss from both sides specific U type magnet through pressing the silkworm pupa and applys a invariable external force to the silica gel film, can the motion of effectual control silkworm body, and silica gel film texture is soft, also can reduce the harm to the silkworm body simultaneously.

(2) At the in-process of differentiateing the male and female pupa of silkworm pupa, distinguish according to the difference of the male and female pupa body on the sexual character usually, but under the normal conditions, indoor illumination intensity is relatively weak, can seriously influence the accuracy of the male and female differentiation of silkworm pupa, control through light filling ware on this device can carry out the light filling to the pupa body that needs the observation and shine, adjusts illumination intensity, is favorable to the observation to the pupa body to can adjust the angle of light filling ware, convenient to use.

(3) The in-process of distinguishing male and female silkworm chrysalis is usually distinguished according to difference on the sex characteristics of both male and female pupa bodies, but under the normal condition, because the pupa body is less, the sex characteristics are not obvious, and it can be more difficult to observe the pupa body sex characteristics under the naked eye normal condition, can seriously influence the accuracy that the male and female silkworm chrysalis was distinguished, and the magnifying glass through this device installation can enlarge the observation to the pupa body to can adjust the angle of magnifying glass.

(4) The utility model discloses each part is through elasticity screwed connection, and the dismouting is all very convenient with folding, folds when not using and can save parking space.

Drawings

Fig. 1 is an axonometric view of the silkworm pupa male and female distinguishing observation table of the utility model.

Fig. 2 is a split enlarged view of the pupa pressing clamp of the utility model.

Wherein the reference numerals shown in fig. 1 are: 1. the novel multifunctional pupa-carrying table comprises a magnifier, 2 parts of a magnifier supporting rod, 3 parts of a first elastic screw, 4 parts of a bracket supporting rod, 5 parts of a second elastic screw, 6 parts of a bracket, 7 parts of a third elastic screw, 8 parts of a light supplementing device, 9 parts of a fourth elastic screw, 10 parts of a pupa-pressing clamp, 11 parts of a pupa-carrying table, 12 parts of a fifth elastic screw, 13 parts of a switch and 14 parts of a base.

The reference numerals shown in fig. 2 are: 101, a U-shaped magnet, 102, a silica gel film, 103, a magnetic film material plate, 104 and a groove.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

As shown in fig. 1 and 2, a silkworm pupa sex distinguishing observation platform for teaching experiments comprises a magnifier 1, a magnifier support rod 2, a support rod 4, a support 6, a light supplementing device 8, a pupa carrying platform 11 and a base 14, wherein the magnifier 1 is used for adjusting the angle through two supporting points on the magnifier support rod 2; the magnifier supporting rod 2 is connected with a bracket supporting rod 4 through a first elastic screw 3, the bracket supporting rod 4 is connected with a bracket 6 through a second elastic screw 5, a light supplementing device 8 is connected with the bracket 6 through a third elastic screw 7, a pupa carrying platform 11 is connected with the bracket 6 through a fourth elastic screw 9, and the bracket 6 is fixed on a base 14 through a fifth elastic screw 12; the base 14 plays a role in supporting and fixing the whole observation platform; the base 14 is provided with a switch 13 for controlling the light supplement device 8. Carry on being equipped with on the pupa platform 11 and be used for controlling the pressure pupa of pupa wrench movement to press pupa to press and press 10, press pupa to press and press the pupa board 103, silica gel film 102 and U type magnet 101, be equipped with the recess 104 that is used for placing the pupa on the magnetic film board 103, silica gel film 102 is made by soft transparent material.

The distance between the magnifier 1 and the second tightening screw 5 is smaller than or equal to the distance between the second tightening screw 5 and the fourth tightening screw 9, so that the magnifying function of the magnifier 1 can be realized. The length less than or equal to of light filling ware 8 is apart from between third elasticity screw 7 and the fourth elasticity screw 9 to guarantee that light of light filling ware 8 can shoot the position of pressing pupa clamp 10.

The first elastic screw 3 can adjust the angle between the support supporting rod 4 and the magnifier supporting rod 2; the second elastic screw 5 can adjust the angle between the support rod 4 and the support 6; the third elastic screw 7 can adjust the angle between the light supplement device 8 and the bracket 6; the fourth elastic screw 9 can adjust the pupa carrying platform 11 to be in a horizontal or inclined state; the fifth lag screw 12 can adjust the folding or unfolding of the bracket 6.

During manufacturing, the design can be carried out according to the following materials and dimensions: the base 14 is made of a stainless steel plate with the length of 30cm, the width of 20cm and the thickness of 1 cm; the distance between the fifth elastic screw 12 and the fourth elastic screw 9 is 10 cm; the pupa carrying platform 11 is made of a stainless steel plate with the length of 10cm and the width of 5 cm; the distance between the fourth loose screw 9 and the third loose screw 7 is 10 cm; the length of the light supplement device 8 is 5 cm; the distance between the third loose screw 7 and the second loose screw 5 is 10 cm; the length of the support rod 4 of the bracket is 10 cm; the length of the magnifier supporting rod 2 is 10 cm; the diameter of the magnifying lens 1 is 4 cm.

The utility model discloses a use method as follows:

1. preparing silkworm chrysalis:

a proper amount of silkworm cocoons are taken to prepare for cocoon cutting, and the cocoon cutting adopts an operation method of one cutting, two inversions and three light placing. When cocoon is cut, the cocoon is held by the left hand, the knife is held by the reverse hand of the right hand, the knife edge is outward, the upper cover is obliquely cut from the upper end 1/4 of the cocoon to the front upper side, and the cut opening is proper and is not suitable for being too large or too small to pour the pupa body smoothly. The cut is too big, easily injures pupa body, and the cut is too little to pour pupa, and is inefficient, pours by force, easily falls and injures pupa body. After the cocoons are cut, the pupa is poured into the right palm at will and is lightly put into a tray, and soft lining objects are paved in the tray in advance to avoid the damage of the pupa body.

2. And (3) pupa identification:

the viewing station is assembled as shown in figures 1 and 2.

Placing the silkworm pupae to be identified in a groove 104 of a magnetic thin-film material plate 103, covering the upper half part of the silkworm pupae with a soft and transparent silica gel film 102, and exposing the tail part of the silkworm pupae for observation; then the U-shaped magnet 101 is pressed on the silica gel film 102 and is matched with the magnetic film material plate 103 to control the pupa body in the U-shaped magnet 101, thereby controlling the pupa body to twist.

And adjusting the inclination angle of the light supplement device 8 to enable the illumination direction to be aligned with the pupa body, and turning on the switch 13 to supplement light to the pupa body for illumination adjustment. The angles of the support supporting rod 4 and the magnifier supporting rod 2 are adjusted through the second loose screws 5 and the first loose screws 3, the magnifier 1 is controlled to be positioned above the pupa body, and the rotating angle of the magnifier 1 is adjusted to achieve the best observation position for identification.

3. Folding the observation platform:

after the identification is finished, adjusting the first elastic screw 3 to enable the magnifier supporting rod 2 and the bracket supporting rod 4 to be in a straight line; adjusting a second loose screw 5, a third loose screw 7 and a fourth loose screw 9 to enable the magnifier supporting rod 2, the bracket supporting rod 4, the light supplementing device 8 and the pupa carrying platform 11 to be folded with the bracket 6; adjust fifth elasticity screw 12, make support 6 rotate ninety degrees right and carry out the folding of observation platform, the observation platform after accomplishing the folding occupation to the space has significantly reduced.

Claims

1. A silkworm pupa sex distinguishing observation platform for teaching experiments is characterized by comprising a magnifying lens, a magnifying lens supporting rod, a support, a light supplementing device and a silkworm pupa carrying platform, wherein the magnifying lens is movably connected with the magnifying lens supporting rod and can freely adjust the angle; carry the pupa bench on be equipped with the pressure pupa clamp that is used for controlling the pupa wrench movement, the pressure pupa clamp including magnetism film material board, silica gel film and U type magnet, be equipped with the recess that is used for placing the pupa on the magnetism film material board, when the pupa was placed in the recess, the silica gel film was used for covering the first half of pupa, U type magnet pressed on silica gel film and cooperateed with magnetism film material board and is controlled the pupa body in U type magnet to control the pupa body wrench movement.

2. The viewing platform for male and female silkworm chrysalis identification used in teaching experiments according to claim 1, wherein the viewing platform further comprises a support rod, one end of the support rod is movably connected with the support, the other end of the support rod is movably connected with the magnifier support rod, and the angle of the magnifier aligning to the pupa carrying platform can be adjusted by adjusting the angle between the support and the support rod and the angle between the support rod and the magnifier support rod.

3. The viewing platform for male and female silkworm chrysalis identification used in teaching experiments of claim 2, wherein the magnifier support bar is connected to the bracket support bar through a first screw, the bracket support bar is connected to the bracket through a second screw, the light supplement device is connected to the bracket through a third screw, and the pupa carrying platform is connected to the bracket through a fourth screw.

4. The silkworm pupa male and female distinguishing observation platform for the teaching experiment as claimed in claim 2, wherein the observation platform further comprises a base, and the bracket is fixed on the base through a fifth tightening screw; and a switch for controlling the brightness of the light supplement device is also arranged on the base.