Multi-size insect dissecting device easy to switch

Abstract

The utility model discloses a multi-size insect dissecting device easy to switch. The multi-size insect dissecting device aims at solving the problem that in the prior art, an insect dissecting tool still needs to be improved. The dissecting device comprises a hollow rod body, a bottom cap and a top cap, a plurality of sliding rods are arranged in the rod body, dissecting needles are arranged at one ends of the sliding rods and penetrate out of the bottom cap, the other ends of the sliding rods are connected with the inner wall of the top cap through tension springs, positioning protrusions are arranged in the middles of the sliding rods, and a plurality of positioning openings are formed in the portions, corresponding to the positioning protrusions, of the rod body. A positioning ring is arranged at the positioning opening in the radial direction, and a plurality of shifting rods are arranged on the rod body between the positioning ring and the top cap; a plurality of needle loading openings are formed in the part, corresponding to the tail part of the dissecting needle, of the rod body. The technical structure is simple, operation is easy, the hand fatigue feeling can be relieved, various miniature insects can be conveniently dissected and picked, the internal structure of the miniature insects can be conveniently observed and dissected, and multiple dissecting needles of different models and stretching lengths can be stretched out at the same time and switched.

Description

Technical Field

[0001] The utility model relates to the technical field of micro animal dissection, in particular to an insect dissection device with easy switching of multiple sizes. Background Technique

[0002] On the earth, insects are widely distributed. They not only have a wide variety of species, but also have an astonishing number. At the same time, the pathogens carried in the bodies of insects will have a significant impact on human health and social development. Therefore, dissecting insects is a good biological resource for humans to study insects. It can better understand the characteristics of insects and also better study the pathogens in their bodies. It is not only of great help to agricultural production and aquaculture, but also greatly promotes human health. However, when dissecting some insects with relatively small individuals, tools such as dissecting needles are needed to better understand their internal structures and the locations where pathogens exist.

[0003] When dissecting insects, generally, first observe the overall appearance to have a general understanding of their heads, bodies, and feet. Then cut off the feet and wings from the base, and the dorsal plate and ventral plate can be observed. For insects with slightly larger individuals, the dorsal plate and ventral plate can be cut along the epidermis with scissors, and then the internal organs can be dissected. For insects with slightly smaller individuals or slightly tougher outer shells, relatively thick dissecting needles need to be used at the beginning of the dissection, which can not only reduce the probability of bouncing them away during operation, but also improve the dissection success rate and avoid affecting the experimental process and results. During the dissection process, dissecting needles of different thicknesses are needed for dissections at different positions. Therefore, it may be necessary to change needles multiple times during the experiment, and the operator needs to check and determine whether the selected needle is correct during the needle-changing process. Since the length of the needle is generally shorter than the palm, the fatigue intensity of the hand is obvious during the holding process.

[0004] After retrieval, the Chinese utility model patent with the application number CN201120107028.7 in the prior art discloses "a dissecting knife for dissecting insects". The specific implementation of this document records: "Using the needle of a stainless steel syringe as the knife head and inserting it into the polystyrene handle after heating it red." Although the problem of how to make the dissecting knife easy to hold is considered, the technical problem of how to quickly replace dissecting knives of different sizes is still not solved.

[0005] The Chinese utility model patent with the application number 201521003264.9 discloses "a multifunctional and assembled micro insect dissecting needle". Paragraph

[0023] of this document records that "the inside of the handle is hollow and can store needles of different models and sizes to facilitate replacement and avoid the operator being pricked by the needle tip." Although the problem of gradually replacing needles of different sizes is considered, the technical problem of how to quickly switch and use dissecting knives of different sizes is not involved. Content of the Utility Model

[0006] The utility model aims at the problem that the insect dissection tools in the prior art still need to be improved, and provides an insect dissection device with reasonable structure, convenient use and easy switching of multiple sizes.

[0007] The technical solution of the utility model is to provide an insect dissection device with easy switching of multiple sizes, which has the following structure: it includes a hollow rod body, a bottom cap and a top cap, and is characterized in that: multiple sliding rods are arranged inside the rod body, one end of the sliding rod is provided with a dissection needle passing through the bottom cap, and the other end is connected to the inner wall of the top cap through a tension spring. A positioning protrusion is arranged in the middle of the sliding rod, and multiple positioning ports are arranged on the part of the rod body corresponding to the positioning protrusion. A positioning ring is arranged radially at the positioning port, and multiple toggle rods are arranged on the rod body between the positioning ring and the top cap; multiple needle mounting ports are arranged on the part of the rod body corresponding to the tail of the dissection needle.

[0008] Preferably, the positioning protrusion includes an elastic piece and a blocking piece, wherein one end of the elastic piece is connected to the sliding rod and is close to the bottom cap, the other end is inclined upwards and is close to the top cap, and at the end close to the top cap, a blocking piece perpendicular to the sliding rod is attached and connected to the positioning ring.

[0009] Preferably, a dissection needle positioning groove and an elastic dissection needle clamping block are arranged on the sliding rod. The dissection needle clamping block is provided with an ellipsoidal groove with a minor axis smaller than the diameter of the spherical handle at the top end of the dissection needle, or the dissection needle clamping block is provided with a rectangular groove with a width smaller than the diameter of the cylindrical handle at the top end of the dissection needle. The tail of the dissection needle is embedded in the dissection needle clamping block, and the needle body is embedded in the dissection needle positioning groove.

[0010] Preferably, multiple partition strips are arranged axially on the inner circumferential surface of the rod body, and are distributed at equal angles to each other.

[0011] Preferably, multiple flexible positioning columns are arranged on the inner bottom surface of the bottom cap in the radial direction. A conical groove is arranged on the side surface of the positioning column opposite to the dissection needle, and a conical sliding groove is pasted in the conical groove. A hole is arranged axially in the positioning column and the conical sliding groove, and the cross section of the hole is circular or rectangular. The diameter of the circular hole on the positioning column and the length of the short side of the rectangular hole are smaller than the diameter of the protruding dissection needle.

[0012] Preferably, the outside of the needle mounting port on the rod body is sleeved in a flexible sleeve.

[0013] Preferably, the positioning ring is an elastic rubber ring or a C-shaped ring with a diameter slightly smaller than the diameter of the rod body.

[0014] Preferably, the positioning ring is sleeved in an annular positioning groove on the outer circumferential surface of the rod body.

[0015] Preferably, the positioning port is a rectangular groove distributed axially along the sliding rod.

[0016] Preferably, a plurality of positioning brackets are provided on the inner bottom surface of the top cap in the radial direction. One end of a tension spring passes through the positioning brackets, and the other end of the tension spring is connected to the end of the sliding rod through the positioning brackets.

[0017] Compared with the prior art, the insect dissection device with easy switching of multiple sizes of the present invention has the following advantages:

[0018] 1. The structure is simple and the operation is easy. The dissection needle clamp block on the sliding rod can quickly fix dissection needles of multiple sizes. By extending the dissection needle clamp through the rod body, the hand fatigue can be relieved, which is convenient for dissecting and picking up various micro-insects and observing and dissecting their internal structures.

[0019] 2. Multiple dissection needles of different models and extended lengths can be simultaneously extended and switched. There is no need to replace the needles of different sizes one by one, and the quick switching and use of dissection needles of different sizes can be realized.

[0020] 3. Pull down the toggle lever to make the positioning protrusion catch on the lower side of the positioning ring to realize the extension of the dissection needle. By adjusting the position of the positioning ring at the positioning port on the rod body, the dissection needle can extend different lengths, which is convenient for adjusting the length and elasticity of the dissection needle, avoiding the insects from being bounced away, and at the same time not easily damaging the structure of the micro-insects.

[0021] 4. Multiple dissection needles of different sizes can be sequentially and circularly installed on multiple sliding rods, which is convenient for accurately increasing or decreasing the specifications and sizes during subsequent use.

[0022] 5. The production process is simple, the cost is low, and it is easy to be equipped and popularized in ordinary schools and laboratories. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is the top view structure schematic diagram of the sliding rod in the present invention;

[0025] Figure 3 is the bottom view structure schematic diagram of the sliding rod in the present invention;

[0026] Figure 4 is one of the schematic diagrams of the inner structure of the bottom cap in the present invention;

[0027] Figure 5 is the present invention Figure 4 the sectional view structure schematic diagram at A-A' in;

[0028] Figure 6 is the schematic diagram of the structure of the positioning protrusion in the present invention;

[0029] Figure 7It is the second schematic diagram of the inner structure of the sole cap in the present utility model;

[0030] Figure 8 It is the present utility model Figure 7 The schematic cross-sectional structure diagram at B-B' in it;

[0031] Figure 9 It is the first schematic diagram of the structure of the rod body in the present utility model;

[0032] Figure 10 It is the second schematic diagram of the structure of the rod body in the present utility model;

[0033] Figure 11 It is the schematic diagram of the internal view of the rod body in the present utility model;

[0034] Figure 12 It is the schematic diagram of the structure of the C-shaped positioning ring in the present utility model;

[0035] Figure 13 It is the schematic diagram of the inner structure of the top cap in the present utility model;

[0036] Figure 14 It is the schematic diagram of the matching structure of the sole cap and the top cap in the present utility model.

[0037] In the attached drawings, the reference numeral 1 is the sole cap, 2 is the dissection needle, 3 is the sliding rod, 4 is the dissection needle clamping block, 5 is the positioning protrusion, 6 is the positioning ring, 6' is the positioning groove, 7 is the tension spring, 8 is the top cap, 9 is the rod body, and 10 is the dial rod.

[0038] 1-1 is the internal thread, 1-2 is the positioning column, 1-3 is the round hole, 1-3' is the rectangular hole, 1-4 is the positioning sleeve ring, 1-5 is the conical sliding groove; 5-1 is the elastic piece, 5-2 is the retaining piece; 8-1 is the positioning bracket, 8-2 is the positioning sleeve, 8-3 is the hanging ear; 9-1 is the positioning port, 9-2 is the needle mounting port, 9-3 is the external thread, 9-4 is the flexible sleeve, 9-5 is the partition strip. Detailed implementation manners

[0039] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0040] The following further describes the multi-size and easily switchable insect dissection device of the present utility model in conjunction with the drawings and specific implementation manners: As Figure 1As shown, this embodiment includes a hollow rod body 9, a bottom cap 1 and a top cap 8. A plurality of sliding rods 3 are arranged inside the rod body 9. One end of the sliding rod 3 is provided with a dissecting needle 2 passing through the bottom cap 1, and the other end is connected to the inner wall of the top cap 8 through a tension spring 7. A positioning protrusion 5 is arranged in the middle of the sliding rod 3. A plurality of positioning openings 9-1 are arranged on the rod body 9 corresponding to the positioning protrusion 5. A positioning ring 6 is arranged radially at the positioning opening 9-1. A plurality of levers 10 are arranged on the rod body 9 between the positioning ring 6 and the top cap 8. A plurality of needle loading openings 9-2 are arranged on the rod body 9 corresponding to the tail of the dissecting needle 2. The positioning opening 9-1 is a rectangular groove distributed along the axial direction of the sliding rod 3. The positioning protrusion 5 includes an elastic sheet 5-1 and a baffle 5-2, wherein one end of the elastic sheet 5-1 is connected to the sliding rod 3 and close to the bottom cap 1, and the other end is inclined upward and close to the top cap 8. The end close to the top cap 8 is provided with a baffle 5-2 perpendicular to the sliding rod 3 and fits the positioning ring 6.

[0041] like Figure 3 As shown, pressing the lever 10 downward can reduce the height of the elastic sheet 5-1 on the positioning protrusion 5, so that the blocking sheet 5-2 set on the end thereof is lowered, so that the positioning protrusion 5 is no longer bound by the positioning ring 6, and the tension spring 7 cannot pull it back to the top cap 8 side when it is freed from being bound. The rod body 9 is provided with a plurality of positioning openings 9-1 for the positioning protrusion 5 on the sliding rod 3 and the lever 10 to move, and serial numbers can be marked near the positioning openings 9-1 to distinguish the dissecting needles 2 of different sizes. The hanging ears 8-3 on the outer ring surface of the top cap 8 can conveniently hang the dissecting device in this scheme somewhere like a pen.

[0042] The elastic sheet 5-1 can keep the position of the end near the top cap 8 higher than the connecting part, so that the elastic sheet 5-1 near the end of the top cap 8 can slide through the lower part of the positioning ring 6. When leaving the positioning ring 6, the elastic sheet 5-1 near the end of the top cap 8 bounces up again, and uses the baffle 5-2 on it that is perpendicular to the sliding rod 3 to fit the connected positioning ring 6, so that the sliding rod 3 cannot retract under the action of the tension spring 7, thereby keeping the anatomical needle 2 in an extended state for easy use. Multiple anatomical needles 2 can be extended at a time, and the switching rotating rod body 9 can obtain the best holding angle, which can ultimately reduce the waiting time required when switching back and forth between different anatomical needles 2.

[0043] like Figure 9 , 10 As shown in Figure 12, the positioning ring 6 is an elastic rubber ring or a C-shaped ring with a diameter slightly smaller than the diameter of the rod body 9. The positioning ring 6 is a structure that is connected by interference and is sleeved on the positioning port 9-1 on the rod body 9 to restrain the positioning protrusion 5, and its position can be adjusted manually. The clamping force of the interference connection can prevent the dissecting needle 2 from retreating due to excessive force when using the dissecting needle 2. The positioning groove 6' can fix the positioning ring 6 in a predetermined position, which can better prevent the dissecting needle 2 from retreating due to excessive force when using the dissecting needle 2.

[0044] As Figure 2 and 3 shown, the sliding rod 3 is provided with an anatomical needle 2 positioning groove and an elastic anatomical needle clamping block 4. The anatomical needle clamping block 4 is provided with an ellipsoidal groove with a minor axis smaller than the diameter of the spherical handle at the top of the anatomical needle 2, or the anatomical needle clamping block 4 is provided with a rectangular groove with a width smaller than the diameter of the spherical cylindrical handle at the top of the anatomical needle 2. The tail of the anatomical needle 2 is embedded in the anatomical needle clamping block 4, and the needle body is embedded in the anatomical needle 2 positioning groove.

[0045] The sliding rod 3 is a sliding member for carrying the anatomical needle 2. The anatomical needle clamping block 4 is arranged inside the anatomical needle clamping block 4 on it. It is made of a flexible material, and the size of the anatomical needle 2 clamping groove arranged inside it is slightly smaller than the size of the corresponding part of the anatomical needle 2, which can prevent the anatomical needle 2 from shaking or falling inside it. First, insert the tip of the anatomical needle 2 into the anatomical needle 2 clamping groove on the sliding rod 3 from the needle loading port 9-2, and then slowly embed the tail of the anatomical needle 2 in the anatomical needle clamping block 4 to complete the preliminary positioning of the anatomical needle 2. Then, sleeved outside the outer part of the rod body 9 around the needle loading port 9-2 with a flexible sleeve 9-4, which can not only prevent the anatomical needle 2 from running out due to improper clamping, but also provide a relatively soft clamping part for the fingers during operation. When it is necessary to take out the anatomical needle 2, remove the flexible sleeve 9-4, use the tip of the forceps to pry out the tail of the anatomical needle 2 from the anatomical needle clamping block 4, clamp the anatomical needle 2 with the forceps, and take it out.

[0046] As Figure 2 and 11 shown, a plurality of positioning brackets 8-1 are arranged on the inner bottom surface in the radial direction of the top cap 8. One end of the tension spring 7 passes through the positioning bracket 8-1, and the other end of the tension spring 7 is connected to the end of the sliding rod 3 through the positioning bracket 8-1. A plurality of partition strips 9-5 are arranged axially on the inner ring surface of the rod body 9, and are distributed at equal angular intervals with each other.

[0047] The tension spring 7 can pull the sliding rod 3 and the anatomical needle 2 above it back into the rod body 9 relative to the top cap 8, preventing its unnecessary external leakage, interfering with the use of other anatomical needles 2, or pricking other places. A plurality of positioning brackets 8-1 are annularly arranged inside the top cap 8 to be connected with the tension spring 7. A positioning sleeve 8-2 is arranged at the internal center, and the positioning collar 1-4 on the bottom cap 1 is sleeved with each other. At the same time, under the partition of the partition strips 9-5 on the inner ring surface of the rod body 9, the stability of the sliding rod 3 inside the rod body 9 is finally enhanced. The positioning collar 1-4 in the middle of the bottom cap 1 can be sleeved with the positioning sleeve 8-2 arranged on the top cap 8, which can play a supporting role for the sliding rod 3 annularly distributed inside the rod body 9 inside the rod body 9, so that the sliding rod 3 will not have a large deviation.

[0048] As Figure 4 、 5As shown in , 7 and 8, a plurality of flexible positioning columns 1-2 are provided on the radial inner bottom surface of the bottom cap 1, and conical grooves are provided on the sides opposite to the positioning columns 1-2 and the dissecting needle 2, and a conical slide groove 1-5 is pasted in the conical groove, wherein the positioning columns 1-2 and the conical slide groove 1-5 are axially provided with holes, and the cross-section of the holes is circular or rectangular, and the diameter of the circular hole 1-3 on the positioning column 1-2 and the length of the short side of the rectangular hole 1-3' are smaller than the diameter of the extended dissecting needle 2.

[0049] The bottom cap 1 is a fixing part for fixing the extended position of the bottom anatomical needle 2. It is connected to the external thread 9-3 at the end of the rod body 9 through the internal thread 1-1. A conical groove is provided on the positioning column 1-2 on the inner side. This structure can quickly offset and position the tip of the anatomical needle 2 into the circular hole 1-3 or the rectangular hole 1-3' thereon. The circular hole 1-3 is suitable for straight needles, and the rectangular hole 1-3' is suitable for curved needles, bent needles or hook needles. The positioning column 1-2 is made of flexible material, and the conical groove is made of hard material. The types of the corresponding holes on the positioning column 1-2 and the conical groove need to be the same. The size of the hole on the positioning column 1-2 needs to be smaller than the size of the corresponding hole on the conical groove, that is, the diameter of the circular hole 1-3 and the thickness of the short side of the rectangular hole 1-3' need to be slightly smaller than the diameter of the needle that can be extended. This can ensure that the anatomical needle 2 will be better clamped by the positioning column 1-2 made of flexible material during use, so that it will not produce large shaking here, thereby making it easier for the operator to control the operating accuracy at the needle tip.

[0050] like Figure 9 As shown, the lower half of the rod body 9 is sleeved in the flexible sleeve 9-4. The flexible sleeve 9-4 is arranged in the finger gripping area, which can not only prevent slipping, but also enhance the comfort when holding.

[0051] The dissecting needle 2 can be a curved needle, a bent needle, a hooked needle, a thick needle, or a thin needle; the diameter of the needle body is 0.17 to 0.30 mm, and the length extending from the bottom cap 1 is 1 to 3 cm. During operation, different types of needles can be selected according to different needs. The needle is thin and short, and has low elasticity, which can reliably avoid flying insects, and is not easy to damage the structure of micro-insects, which helps to improve the efficiency of operation under a stereoscope. The needle just used for dissection can be sterilized and then taken out and placed on the table.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A multi-size and easily switchable insect dissection device, comprising a hollow rod body, a bottom cap and a top cap, characterized in that: A plurality of sliding rods are arranged inside the rod body, a dissecting needle is arranged at one end of the sliding rod and passes through the bottom cap, and the other end is connected to the inner wall of the top cap through a tension spring, a positioning protrusion is arranged in the middle of the sliding rod, a plurality of positioning openings are arranged at the portion of the rod body corresponding to the positioning protrusion, a positioning ring is arranged radially at the positioning opening, a plurality of levers are arranged on the rod body between the positioning ring and the top cap; a plurality of needle loading openings are arranged at the portion of the rod body corresponding to the tail of the dissecting needle.

2. The multi-size easily switchable insect dissection device according to claim 1, characterized in that: The positioning protrusion comprises an elastic sheet and a blocking sheet, wherein one end of the elastic sheet is connected to the sliding rod and is close to the bottom cap, and the other end is inclined upward and close to the top cap. The end close to the top cap is provided with a blocking sheet vertical to the sliding rod and fits in a connection with a positioning ring.

3. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: The sliding rod is provided with a anatomical needle positioning groove and an elastic anatomical needle clamp block, the anatomical needle clamp block is provided with an ellipsoidal groove whose short axis is smaller than the diameter of the ball handle at the top of the anatomical needle, or the anatomical needle clamp block is provided with a rectangular groove whose width is smaller than the diameter of the ball cylindrical handle at the top of the anatomical needle, the tail of the anatomical needle is embedded in the anatomical needle clamp block, and the needle body is embedded in the anatomical needle positioning groove.

4. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: A plurality of dividing strips are axially arranged on the annular surface of the rod body and are distributed at equal angles to each other.

5. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: A plurality of flexible positioning posts are arranged on the radial inner bottom surface of the bottom cap, and conical grooves are arranged on the sides opposite to the positioning posts and the dissecting needle, and a conical slide groove is pasted in the conical groove, wherein the positioning posts and the conical slide groove are axially provided with holes, and the cross-section of the holes is circular or rectangular, and the diameter of the circular hole on the positioning post and the length of the short side of the rectangular hole are smaller than the diameter of the extended dissecting needle.

6. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: The needle port on the rod body is sleeved externally in the flexible sleeve.

7. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: The positioning ring is an elastic rubber ring or a C-shaped ring with a diameter slightly smaller than the diameter of the rod body.

8. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: The positioning ring is sleeved in the annular positioning groove on the outer ring surface of the rod body.

9. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: The positioning opening is a rectangular groove distributed along the axial direction of the sliding rod.

10. The multi-size easily switchable insect dissecting device according to claim 1, characterized in that: A plurality of positioning brackets are arranged on the radial inner bottom surface of the top cap, the positioning bracket passes through one end of the tension spring, and the other end of the tension spring is connected to the end of the sliding rod through the positioning bracket.

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