CN209073275U - A kind of foldable nematode chooses needle - Google Patents

Abstract

The utility model relates to nematodes to study field of biotechnology, specifically disclose a kind of foldable nematode and choose needle, including tapering, handle and press section, tapering, which is worn, is connected to platinum wire；Handle inner is equipped with bunching ring close to the one end in tapering, bunching ring is fixedly connected by several connecting rods with handle inner wall, spiral snap ring is equipped on bunching ring between two neighboring connecting rod, spiral snap ring both ends are respectively equipped with the first pressure holding bar and the second pressure holding bar, second pressure holding bar top is coated with intermediate plate, and each intermediate plate encloses among the structure being connected into that there are buffer gaps；Press section includes pressure holding casing, boosting bar and pressing lever, and pressure holding casing is fixedly arranged on boosting bar close to the outside of tapering one end, and pressing lever is fixedly connected with the opposite other end of boosting bar.The utility model provides a kind of foldable nematode and chooses needle, conveniently takes and operates, when not in use can store platinum wire to handle, convenience easy to operate.

Description

A kind of foldable nematode chooses needle

Technical field

The utility model relates to nematodes to study field of biotechnology, specifically disclose a kind of foldable nematode and choose needle.

Background technique

In being separately cultured in equal operating process for nematode, the accurate a certain number of target nematodes of picking are most important, normal In rule operation, mostly a large amount of samplings are that nematode is configured to nematode suspension, are then used again after nematode population in statistical unit volume Liquid-transfering gun draws numeration；Fine sampling shifts the common of nematode generally to make the pickings such as nematode needle or eyelash by oneself at this stage Choosing needle is to be sticked in glass dropper to make by oneself using platinum wire, but Glass breadks easily cannot be stored, platinum wire easily snaps off damage It ruins.

Utility model content

The utility model provides a kind of foldable nematode and chooses needle, is equipped with handle, conveniently takes and operate, solid in handle Equipped with storage device, platinum wire can be stored when not in use to handle, it is easy to use.

A kind of foldable nematode chooses needle, including tapering, handle and press section, and the tapering is that the cone cell of both ends open is empty Core structure, and the front end in the tapering is tip, activity, which is worn, at the tapering front opening is connected to platinum wire, the tapering tail end It is screwed in the front end of the handle；

The handle is the hollow cylindrical tube of both ends open, is installed with bunching ring in the handle front end, described to tighten Ring is fixedly connected by several connecting rods being equidistantly positioned with the handle inner wall, and two neighboring institute is located on the bunching ring It states equal movable sleeve between connecting rod and is equipped with spiral card ring, each spiral snap ring both ends are respectively equipped with the first pressure holding bar and second Bar is pressed, and the first pressure holding bar extends to the inner wall direction of the neighbouring handle, described second presses bar to the hand Handle central axis extends, and each second pressure holding bar top is coated with intermediate plate, and the intermediate plate is sector structure, and several The intermediate plate is generally aligned in the same plane, several described intermediate plates enclose jointly is connected into the intermediate ring structure for having buffer gap, described Platinum wire passes through the buffer gap far from one end of the tapering front end；

The press section is movably set in the handle inner, and the press section includes the pressure holding casing of front opening, helps Push rod and pressing lever, each described first presses the groove for offering on bar and matching with the pressure holding casing front edge, And each groove is respectively positioned on same perpendicular, the front edge clamping of the pressure holding casing is in the groove, described Pressure holding cannula end offer with the boosting bar match first perforation, the boosting bar pass through it is described first perforation and with First perforation is affixed, and the boosting bar front end is abutted with the platinum wire far from one end of the tapering front end；The hand Handle tail end offers the second perforation, and the pressing lever passes through described second and perforates and be fixedly connected with the tail end of the boosting bar.

Preferably, the tapering is high-temperature-resistant structure.

Preferably, the intermediate plate is soft rubber structure, and the spiral snap ring is rigid structure.

Preferably, be coated with rubber layer on the bunching ring, and the distance at bunching ring to the tapering tip be less than it is described The 1/2 of platinum wire length.

Preferably, the connecting rod is the ring structure to lower recess.

Preferably, the first pressure holding bar and the second pressure holding bar are 125 ° of bent sticks.

Preferably, the boosting bar front end is installed with compact substance sponge block.

The prior art is compared, the utility model has the following beneficial effects:

Foldable nematode provided by the utility model chooses needle, is equipped with handle, conveniently takes and operate, fixed in handle There is storage device, platinum wire can be stored when not in use to handle, avoids the easy fragmentation of article of fixed platinum wire, platinum The problem of silk easily snaps off damage, and it is simple to operation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that foldable nematode provided by the utility model chooses needle；

Fig. 2 is the connection that foldable nematode provided by the utility model chooses bunching ring in needle, connecting rod and spiral snap ring Schematic diagram；

Fig. 3 be foldable nematode provided by the utility model choose boosting bar in needle, bunching ring, connecting rod, spiral snap ring, Press the location diagram between casing and handle.

Description of symbols: the tapering 1-, 2- handle, 20- connecting rod, 21- bunching ring, 22- spiral snap ring, 23- first are pressed Hold bar, 24- second presses bar, 25- intermediate plate, the buffer gap 26-, 3- pressure holding casing, 4- boosting bar, 5- pressing lever, 6- platinum wire.

Specific embodiment

It can be practiced in order to enable those skilled in the art to better understand the technical solutions of the present invention, below with reference to The utility model is described in further detail for the drawings and specific embodiments, but illustrated embodiment is not as the limit to the utility model It is fixed.

In the description of the present invention, it should be understood that term " center ", "upper", "lower", "top", "bottom", The orientation or positional relationship of the instructions such as "inner", "outside", " preceding ", " tail " is to be based on the orientation or positional relationship shown in the drawings, and is only For the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specific side Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition Concrete meaning in the present invention.

A kind of foldable nematode chooses needle, specific as shown in Figure 1-3, include tapering 1, handle 2 and press section, the tapering 1 is the cone cell hollow structure of both ends open, and the front end in the tapering 1 is tip, and activity, which is worn, at 1 front opening of tapering connects There is platinum wire 6, and the opening at 1 tip of the tapering matches with the platinum wire 6, the tapering 1 is equipped with internal screw thread, described Handle 2 is equipped with external screw thread matched with the internal thread, and the tapering 1 is screwed on the handle 2 by the internal screw thread；

The handle 2 is the hollow cylindrical tube of front opening, is installed with bunching ring 21 in 2 front end of handle, described Bunching ring 21 is fixedly connected by several connecting rods 20 being equidistantly positioned with 2 inner wall of handle, and the bunching ring 21 is upper Movable sleeve is equipped with spiral card ring 22 between the two neighboring connection 20, is coated with rubber layer on the bunching ring 21, this It is to prevent spiral snap ring 22 from arbitrarily sliding, institute to increase the frictional force between the bunching ring 21 and the spiral snap ring 22 Stating spiral snap ring 22 is rigid structure, and each 22 both ends of spiral snap ring are respectively equipped with the first pressure holding bar 23 and the second pressure holding bar 24, the first pressure holding bar 23 and the second pressure holding bar 24 are 125 ° of bent sticks, and the first pressure holding bar 23 is to neighbouring The inner wall direction of the handle 2 extend, the second pressure holding bar 24 extends to 2 central axis of handle, each described the Two pressure holding 24 tops of bar are coated with intermediate plate 25, and the intermediate plate 25 is fan-shaped soft rubber structure, and several described intermediate plates 25 Positioned at approximately the same plane, several described intermediate plates 25 enclose jointly is connected into the intermediate ring structure for having buffer gap 26, the platinum Spun gold 6 passes through the buffer gap 26 far from one end of 1 front end of tapering and is clamped by the intermediate plate 25；The buffer gap 26 Diameter is less than the diameter of platinum wire 6, and the intermediate plate 25 of fan-shaped soft rubber structure can clamp the platinum wire 6, controls institute It states platinum wire 6 and exposes the length of 1 tip inlets of tapering, and prevent the platinum wire 6 is whole when in use from skidding off the cone Prevent the platinum wire 6 from sliding into the handle 2 when portion 1 and storage；

The press section is movably set in inside the handle 2, the press section include front opening pressure holding casing 3, Boosting bar 4 and pressing lever 5 are offered and are matched with 3 front edge of pressure holding casing on each first pressure holding bar 23 Groove, and each groove is respectively positioned on same perpendicular, and the front edge of the pressure holding casing 3 is connected to the groove Interior, pressure holding 3 tail end of casing offers the first perforation to match with the boosting bar 4, and the boosting bar 4 passes through described the One perforation is simultaneously affixed with first perforation, 4 front end of boosting bar and the platinum wire 6 far from 1 front end of tapering one End abuts, and the boosting bar 4 is installed with compact substance sponge block close to one end of the platinum wire 6, and compact substance sponge block can buffer institute Thrust when boosting bar 4 touches 6 rear end of platinum wire is stated, the platinum wire 6 is prevented to be bent；2 tail end of handle is opened Equipped with the second perforation, the pressing lever 5 passes through described second and perforates and be fixedly connected with the tail end of the boosting bar 4.

Preferably, the tapering 1 is high-temperature-resistant structure, and the structure made of commercially available any high temperature resistant material can be achieved The function, when can prevent platinum wire 6 described in calcination, the tapering 1 is by fiery calcination.

Preferably, the bunching ring 21 arrives 1/2 of distance less than 6 length of platinum wire at 1 tip of tapering, this When design can guarantee that the platinum wire 6 is moved out of the 1 tip long length of tapering, the other end of the platinum wire 6 is still It can be clamped by the intermediate plate 25, and be unlikely to whole and skid off the handle 2 and the tapering 1, while making when in use described The retaining part of platinum wire 6 can effectively prevent the platinum wire 6 arbitrarily to shake when in use close to the tip of the platinum wire 6 It is dynamic.

Preferably, the connecting rod 20 is the ring structure to lower recess, when the first pressure holding bar 23 is by the pressure holding When casing 3 presses downwards, the structure of recess can prevent the pressure holding casing 3 from moving down to avoid the connecting rod 20.

In use, pressing the pressing lever 5, the boosting bar 4 is driven to move down, to drive the pressure holding casing 3 It moves down, the pressure holding casing 3 can press downwards the first pressure holding bar 23 being clamped with it, at this moment second pressure holding Bar 24 moves up, and the intermediate plate 25 is driven to move up, and each intermediate plate 25 encloses the buffer gap among the structure being connected into 26 increase, and platinum wire 6 loses the chucking power of the intermediate plate 25, while removing institute under the downward active force of the boosting bar 4 1 tip inlets of tapering are stated, at this moment artificially can extract platinum wire 6 out to required length with hand；When not in use, institute is similarly pressed Pressing lever 5 is stated, platinum wire 6 loses the chucking power of the intermediate plate 25, gently pushes up platinum wire 6, and 6 front end of platinum wire can be returned Into the tapering 1.In addition, the pressing lever 5 is pressed into after 2 rotating separation of handle in the tapering 1, it can be manual It removes platinum wire 6 and carries out replacement or cleaning and sterilizing.

Embodiment described above is only preferred embodiments for fully illustrating the utility model, protection scope It is without being limited thereto.Those skilled in the art made equivalent substitute or transformation on the basis of the utility model, in this reality Within novel protection scope, the protection scope of the utility model is subject to claims.

Claims (7)

1. a kind of foldable nematode chooses needle, which is characterized in that including tapering (1), handle (2) and press section, the tapering (1) For the cone cell hollow structure of both ends open, and the front end of the tapering (1) is tip, activity at tapering (1) front opening It wears and is connected to platinum wire (6), tapering (1) tail end is screwed in the front end of the handle (2)；

The handle (2) is the hollow cylindrical tube of front opening, is installed with bunching ring (21), institute in handle (2) front end It states bunching ring (21) and is fixedly connected by several connecting rods (20) being equidistantly positioned with the handle (2) inner wall, it is described to tighten Equal movable sleeve is equipped with spiral card ring (22) between the two neighboring connecting rod (20) on ring (21), each spiral card Ring (22) both ends are respectively equipped with the first pressure holding bar (23) and the second pressure holding bar (24), and first pressure holding bar (23) is to neighbouring The inner wall direction of the handle (2) extends, and described second pressure holding bar (24) Xiang Suoshu handle (2) central axis extends, Mei Gesuo It states second pressure holding bar (24) top to be coated with intermediate plate (25), the intermediate plate (25) is sector structure, and several described intermediate plates (25) it being generally aligned in the same plane, several described intermediate plates (25) are enclosed jointly is connected into the intermediate ring structure for having buffer gap (26), The platinum wire (6) passes through the buffer gap (26) far from one end of the tapering (1) front end；

The press section is movably set in that the handle (2) is internal, the press section include front opening pressure holding casing (3), Boosting bar (4) and pressing lever (5), it is each it is described first pressure holding bar (23) on offer and pressure holding casing (3) front end edge Along the groove to match, and each groove is respectively positioned on same perpendicular, the front edge clamping of pressure holding casing (3) In the groove, described pressure holding casing (3) tail end offers the first perforation to match with the boosting bar (4), described to help Push rod (4) passes through first perforation and, boosting bar (4) front end and the platinum wire (6) affixed with first perforation One end far from the tapering (1) front end abuts；Handle (2) tail end offers the second perforation, and the pressing lever (5) passes through Described second perforates and is fixedly connected with the tail end of the boosting bar (4).

2. foldable nematode according to claim 1 chooses needle, which is characterized in that the tapering (1) is high-temperature-resistant structure.

3. foldable nematode according to claim 1 chooses needle, which is characterized in that the intermediate plate (25) is soft rubber knot Structure, the spiral snap ring (22) are rigid structure.

4. foldable nematode according to claim 1 chooses needle, which is characterized in that be coated with rubber on the bunching ring (21) Glue-line, and the distance at the bunching ring (21) to the tapering (1) tip is less than the 1/2 of the platinum wire (6) length.

5. foldable nematode according to claim 1 chooses needle, which is characterized in that the connecting rod (20) is to lower recess Arcuate structure.

6. foldable nematode according to claim 1 chooses needle, which is characterized in that first pressure holding is bar (23) and described Second pressure holding bar (24) is 125 ° of bent sticks.

7. foldable nematode according to claim 1 chooses needle, which is characterized in that boosting bar (4) front end is installed with Compact substance sponge block.