CN208323579U - Bacterium block puncher - Google Patents

Abstract

The utility model discloses a fungus block puncher, which comprises an outer barrel, a top cover, a spring clamping block, a pressing rod, a spring and a pressing block; a lower opening of the outer barrel is provided with a three-order through hole with the gradually larger aperture from inside to outside; the top cover covers the upper opening of the outer barrel and is provided with a stepped hole clamped with the spring clamping block; the upper end of the pressure lever is connected with a spring clamping block, and the lower end of the pressure lever is detachably connected with a pressing block; the pressing block is clamped with a second-order hole of the third-order through hole of the outer barrel; the outermost step hole of the three-step through hole of the outer barrel is a sampling space, the spring abuts against the spring clamping block and the three-step through hole of the outer barrel, and the pressing block protrudes out of the outer barrel when the spring clamping block is pressed downwards. The lower opening of the outer barrel is designed into a structure with three-order through holes, so that the situation that cross contamination among strains is easy when the pressing block enters the inner cavity of the outer barrel to cause repeated punching is effectively prevented, and the punching success rate is improved. In addition, the detachable connecting structure of the pressure rod and the pressure block enables the cleaning to be carried out without integrally detaching and cleaning, and the cleaning efficiency is improved.

Description

A kind of fungus block punch

Technical field

The utility model relates to be related to a kind of Bioexperiment instrument field, more particularly to one kind is beaten fungi and is punched with fungus block Device.

Background technique

In microorganism related experiment, the existing punch that will use punches fungi to be inoculated with from culture medium flat plate Into culture dish, test tube or conical flask, easily firmly it is stuck on the circular hole wall of punch, is needed using toothpick or needle point due to thallus Choose, bringing inconvenience influences experiment process.

A kind of solid fungus block punch described in similar Patent No. 201721030558.X, including top cover, handle cylinder, pressure Bar, compression bar head and hole cylinder, hole cylinder are fixedly connected on the lower end of handle cylinder；Compression bar is located in handle cylinder, and its top is installed with top Lid, the bottom that compression bar lower end passes through handle cylinder are connect with the compression bar head being installed in the cylinder of hole；It is set on the compression bar in handle cylinder There is spring.Structure is simple, and work efficiency is high.

But the hole of the solid fungus block punch of patent cylinder is straight-through tubulose, the lower end of hole cylinder samples fungus block, then hole The internal chamber wall of the lower end of cylinder is infected with fungus block substance, when pushing away fungus block under compression bar head, the side wall of compression bar head direct contact hole cylinder lower end Internal chamber wall, while the side wall of compression bar head is also infected with fungus block substance.When compression bar head resets, compression bar head can take fungus block substance to The internal chamber wall of the upper end of hole cylinder pollutes entire hole cylinder inner wall.Moreover, the compression bar and compression bar head of the solid fungus block punch are interior The integral structure set, not easy cleaning.Repeatedly when punching, compression bar head moves back and forth in the cylinder of hole, the intersection be easy to causeing between strain Pollution, influences experimental result.

Utility model content

The purpose of this utility model is above-mentioned technical problem to be solved, and provides one kind and effectively reduces cross contamination between strain, Improve punching success rate and fungus block punch easy to clean.

The utility model solves technical solution used by the technical problem: a kind of fungus block punch, including outer cylinder, top Lid, spring fixture block, compression bar, spring and briquetting；Outer cylinder is the circular tube shaped of both ends open, and the lower nozzle of the outer cylinder is equipped with from interior past Gradually big three rank through-holes, the top cover are covered on the upper nozzle of the outer cylinder in outer aperture, and the top cover is equipped with and spring fixture block card The stepped hole connect, the upper end of the compression bar are detachably connected spring fixture block, and the lower end of the compression bar is detachably connected briquetting, described The second-order hole of three rank through-holes of briquetting and outer cylinder is clamped, and the outermost single order hole of three rank through-holes of outer cylinder is the sampler space, described Spring supports three rank through-holes of spring fixture block and outer cylinder, and briquetting is emerged outer cylinder when pushing spring fixture block.

Compared with prior art, have following good effect: the utility model is designed to three ranks by the lower nozzle of outer cylinder The structure of through-hole, the interface in second-order hole and outermost single order hole has positioning action when punching, prevents briquetting from entering in outer cylinder When chamber causes repeatedly to punch between strain the case where easy cross contamination, punching success rate is improved.

Further, the compression bar and the briquetting are to be detachably connected, and when cleaning need to only squeeze spring fixture block convex portion, So that briquetting is exposed outer cylinder, then briquetting is cleaned.Integral demounting cleaning is not needed, cleaning efficiency is improved.

Preferably, the aperture in the second-order hole of the outer cylinder is slightly less than the aperture in outermost single order hole.

Using the above scheme, not only guaranteed that compression bar was not contacted with the hole wall in outermost single order hole, but also guaranteed that compression bar is contacted with fungus block Area is sufficiently large, and fungus block is enable completely to be forced into culture dish.

Preferably, the height d in the second-order hole of the outer cylinder₂Greater than the height d in outermost single order hole₁。

Using the above scheme, push spring fixture block punching when, when briquetting moves downwardly to the lower end surface of outer cylinder, briquetting still with The clamping of second-order hole, the gap for avoiding briquetting disengaging second-order hole that strain is caused to enter between compression bar and second-order hole hole wall are caused Pollution.

Preferably, the height d in the outermost single order hole of three rank through-holes of the outer cylinder₁=1mm.

Using the above scheme, the thickness of punching fungus block can be limited, it is more accurate to obtain required fungus block thickness, reduce experiment As a result error.

Preferably, the lower end of the spring fixture block has a blind hole, the blind hole is embedding by way of threaded engagement It connects in the upper end of the compression bar.

Using the above scheme, the compactness connected between spring fixture block and compression bar can be increased.

Preferably, the spring fixture block exposes the height d of header field₃Greater than the second of three rank through-holes of the outer cylinder The height d in rank hole₂With the height d in outermost single order hole₁The sum of.

Using the above scheme, it can guarantee that briquetting can be moved downwardly to the lower end surface of outer cylinder, enable fungus block complete It is forced out the sampler space, to obtain complete fungus block.

Preferably, the outer cylinder, top cover, spring fixture block, compression bar and briquetting are all made of stainless steel material.

Using the above scheme, part problem of rustiness caused by capable of preventing because of moist experimental situation reduces pollution, improves Punch success rate.

The utility model is described in further detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model

Wherein, the outermost single order hole 1- top cover, 2- spring fixture block, 3- compression bar, 4- spring, 5- briquetting, 6- outer cylinder, 61-, 62- Second-order hole, 63- third rank hole

Specific embodiment

Embodiment one

The technical solution of the utility model is described in further detail with reference to the accompanying drawing.

Shown in Fig. 1, the utility model embodiment provides a kind of fungus block punch, including outer cylinder 6, top cover 1, Spring Card Block 2, compression bar 3, spring 4 and briquetting 5.

Specifically, the outer cylinder 6 is the circular tube shaped of both ends open, and the lower nozzle of outer cylinder 6 is equipped with gradually big from interior aperture outward Three rank through-holes, the outermost single order holes 61 of three rank through-holes is the sampler space, and the cross section of the sampler space is circle.It is described outer The aperture in the third rank hole 63 of cylinder 6 is minimum, and the aperture in the outermost single order hole 61 of the outer cylinder 6 is maximum, the aperture in second-order hole 62 It is slightly less than the aperture in outermost single order hole 61.The height in outermost single order hole 61 is d₁, d₁=1mm, the height in second-order hole 62 are d₂, The height d in second-order hole 62₂Greater than the height d in the first rank hole 61₁。

The top cover 1 is covered on the upper nozzle of the outer cylinder 6, and the top cover 1 is equipped with the ladder being clamped with spring fixture block 2 Hole.

The upper end of the spring fixture block 2 emerge the outer cylinder 6 upper nozzle outside, expose the height d of header field₃Greater than institute State the height d in the second-order hole of three rank through-holes of outer cylinder₂With the height d in outermost single order hole₁The sum of, the lower end of the spring fixture block 2 With a blind hole, the blind hole is equipped with internal screw thread.

The upper end of the compression bar 3 is equipped with external screw thread, and the blind hole of spring fixture block 2 is removably rabbeted in the upper end of compression bar 3.It is described The lower end of compression bar 3 is equipped with external screw thread.

The upper surface indent of the briquetting 5, and interior recess has internal screw thread, is matched and is connected by screw thread, the lower end of compression bar 3 is passed through Removably rabbet briquetting 5, and the second-order hole 62 of three rank through-holes of the briquetting 5 and outer cylinder 6 after wearing the third rank hole of outer cylinder 6 Clamping.The lower end surface of the briquetting 5 is circle, and the diameter of the lower end surface of briquetting 5 is adapted to the aperture in second-order hole 62, then briquetting 5 Lower end surface be slightly less than the aperture in outermost single order hole 61.

The spring 4 is set in outer cylinder 6.The upper compressing surface of spring 4 supports the lower end surface of spring fixture block 2, the pushing of spring 4 Support the upper surface of three rank through-holes of outer cylinder 6 in contracting face.

When being punched using punch, the design of three rank through-holes effectively prevent the cross contamination between strain: when one, sampling, under Pressure punching fungus block, fungus block enter the sampler space, and since briquetting limits in second-order hole, the fungus block thickness of acquirement is fixed, fungus block object Matter cannot be introduced into the above space-pollution in second-order hole；Two, when discharging fungus block, briquetting does not touch the inner wall of the sampler space, institute directly With briquetting side wall without fungus block substance, fungus block substance can not be brought into the above space in second-order hole when resetting, avoid handing over by briquetting Fork pollution.

Moreover, the energy disassembly, cleaning of this punch: when cleaning, spring fixture block 2 only need to be squeezed, exposes briquetting 5 outside punch, 5 turn-knob of briquetting is separated with compression bar 3, cleans briquetting 5 and the sampler space.The design that briquetting and compression bar are detachably connected, So that being not required to integral demounting when cleaning, and briquetting need to only be taken out and be cleaned, finally cleaned the sampler space, improve cleaning Efficiency.Moreover, further avoiding the cross contamination of thallus.

The utility model is not limited to above embodiment, if various changes or modifications to the utility model do not take off Spirit and scope from the utility model, if these modification and variations belong to the claims and equivalents of the utility model Within the scope of, then the utility model is also intended to encompass these modification and variations.

Claims (7)

1. a kind of fungus block punch, it is characterised in that: including outer cylinder, top cover, spring fixture block, compression bar, spring and briquetting；It is described outer The lower nozzle of cylinder is equipped with from interior aperture outward gradually big three rank through-holes；The top cover is covered on the upper nozzle of the outer cylinder, described Top cover is equipped with the stepped hole being clamped with the spring fixture block；The upper end of the compression bar connects the spring fixture block, under the compression bar End is detachably connected the briquetting；The second-order hole of three rank through-holes of the briquetting and the outer cylinder is clamped；The three of the outer cylinder The outermost single order hole of rank through-hole is the sampler space, and the spring supports three rank through-holes of the spring fixture block Yu the outer cylinder, under Briquetting is emerged outer cylinder when pressing spring fixture block.

2. fungus block punch according to claim 1, which is characterized in that the height in the second-order hole of the three rank through-hole of outer cylinder Spend the height d1 that d2 is greater than outermost single order hole.

3. fungus block punch according to claim 2, which is characterized in that the outermost single order hole of the three rank through-hole of outer cylinder Height d1=1mm.

4. fungus block punch according to claim 1, which is characterized in that the upper end of the spring fixture block is emerged the outer cylinder Upper nozzle outside, the lower end of the spring fixture block has a blind hole, and the blind hole removably rabbets the upper end of the compression bar.

5. fungus block punch according to claim 4, which is characterized in that the blind hole is internal thread hole, and the upper end of compression bar is Outside threaded holes, blind hole are connected by threaded engagement mode with the upper end of compression bar.

6. fungus block punch according to claim 4, which is characterized in that the spring fixture block exposes the height of header field D3 is greater than the height d2 in the second-order hole of three rank through-holes of the outer cylinder and the sum of the height d1 in outermost single order hole.

7. fungus block punch according to claim 1, which is characterized in that the outer cylinder, top cover, spring fixture block, compression bar and Briquetting is all made of stainless steel material.