CN117706006A - Impression taker - Google Patents

Abstract

This application discloses a mold taking device. The mold-taking device includes a sleeve, a mold-taking needle tube and an ejector needle. The mold-taking needle tube is arranged at one end of the sleeve. The mold-taking needle tube is used to cut the filter membrane. The ejector needle is movably installed in the sleeve and is configured to be able to at least A portion extends from the mold-taking needle tube to push out the filter membrane. The mold taker of the present application can cut the filter membrane and obtain a filter membrane cylinder by extending the mold needle tube into the filter membrane, and then insert the ejection needle into the mold needle tube to eject the filter membrane, so that the filter membrane can be filled into the consumables. specific location.

Description

Mould taking device

Technical Field

The application relates to the technical field of proteomics, in particular to a mould extractor.

Background

Proteomics is the science of studying the composition and change rule of cellular, tissue or organism proteins by taking proteome as a study object. As proteomics continues to evolve, more proteomics samples are needed for research analysis. In order to perform research and analysis on the proteomics sample, the proteomics sample needs to be placed in a consumable to perform pretreatment on the proteomics sample, the consumable needs to use a filtering membrane, and the filtering membrane has a desalting effect and can retain proteins or peptide fragments thereon. However, since the diameter of the filtration membrane in the solid phase extraction consumable is too small, how to quickly manufacture and fill the filtration membrane into the consumable becomes a problem to be solved.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a mode stripper.

The mode stripper of the embodiment of the application comprises:

a sleeve;

the die-taking needle tube is arranged at one end of the sleeve and is used for cutting the filtering membrane to obtain a filtering membrane column body;

the ejection needle head is movably arranged in the sleeve and is configured to at least partially extend out of the mold taking needle tube to eject the filtering membrane column body.

In certain embodiments, the mold-extracting needle tube comprises a needle holder detachably arranged on the sleeve and a needle tube arranged on the needle holder.

In certain embodiments, the inner diameter of the needle cannula is 1.6 millimeters or less.

In some embodiments, the ejector needle comprises a limiting seat and a thimble, wherein the limiting seat is movably arranged in the sleeve, and the thimble is fixed on the limiting seat and at least partially extends into the mold taking needle tube.

In some embodiments, the mold extractor further comprises a reset elastic member sleeved on the ejection needle, and the reset elastic member is compressed and arranged between the sleeve and the limiting seat.

In some embodiments, the sleeve comprises an outer sleeve and an inner sleeve, the inner sleeve is arranged in the outer sleeve and is provided with a limiting groove, the limiting groove extends along the axial direction of the sleeve, and the limiting seat comprises a limiting block, and the limiting block is matched with the limiting groove to limit the rotation of the ejection needle.

In some embodiments, the sleeve comprises an outer sleeve and an inner sleeve, the inner sleeve is disposed in the outer sleeve, the outer sleeve is provided with a clamping groove extending along the axial direction of the sleeve, the inner sleeve comprises a limit protrusion extending along the axial direction of the sleeve, and the limit protrusion is matched with the clamping groove to limit the rotation of the inner sleeve.

In some embodiments, the ejector includes a handle disposed within the sleeve and connected to the ejector needle to allow a user to manipulate the ejector needle to eject the filtering membrane cartridge.

In some embodiments, the ejector needle comprises a limiting seat and a thimble, the limiting seat is movably arranged in the sleeve, the thimble is fixed on the limiting seat and at least partially stretches into the mold taking needle tube, and the handle is in threaded connection with the limiting seat.

In some embodiments, the sleeve comprises an outer sleeve and a cap barrel, the mold-taking needle tube is arranged at one end of the outer sleeve, the cap barrel is at least partially embedded into one end of the outer sleeve away from the mold-taking needle tube, and the cap barrel is formed with a finger hook.

In some embodiments, the sleeve further comprises an inner sleeve and a positioning sleeve, the inner sleeve is arranged in the outer sleeve, the positioning sleeve further comprises a first ring and a second ring, the first ring is covered on the inner sleeve and is abutted with the cover cylinder, the second ring is connected with the first ring and is embedded into the inner sleeve, and the outer diameter of the limiting seat is larger than the inner diameter of the second ring.

In some embodiments, the sleeve further comprises an elastic ring sleeved on the second ring and respectively abutted with the first ring and the inner sleeve.

In some embodiments, the sleeve further comprises an upper shaft sleeve, the upper shaft sleeve is covered on one end of the cover barrel away from the outer sleeve, the handle penetrates through the upper shaft sleeve, the handle comprises a limiting ring, and the outer diameter of the limiting ring is larger than the inner diameter of the upper shaft sleeve.

In certain embodiments, the ejector further comprises a detection sensor, the ejector pin comprising a reflective surface, the detection sensor configured to detect a distance of the reflective surface to determine a stroke of the ejector pin.

In some embodiments, the mold extractor further comprises a display component, wherein the display component is electrically connected with the detection sensor and is used for displaying the travel detected by the detection sensor.

In the mould extractor of this embodiment, through getting membrane needle tubing setting in telescopic one end, ejecting syringe needle activity sets up in the sleeve and can follow the setting of getting the membrane needle tubing, and the user can stretch into the membrane with getting the membrane in the membrane and obtain the membrane cylinder with accurate cutting filtration membrane when getting the mould extractor, will get the membrane needle tubing again and remove to waiting to fill consumptive material department, promotes ejecting syringe needle and stretches into the interior ejecting membrane cylinder of getting the membrane needle tubing for the membrane cylinder can conveniently and accurately fill to waiting to fill in the consumptive material.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic diagram of the structure of a die ejector according to an embodiment of the present application.

FIG. 2 is a schematic view of a scenario in which a die-taker according to an embodiment of the present application cuts a filter membrane and transfers it into a consumable to be filled.

Fig. 3 is an exploded view of the die ejector according to the embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of fig. 1 at section line IV.

Fig. 5 is a schematic view of the structure of an ejector needle according to an embodiment of the present application.

The main components are as follows:

the mold extractor 100, the sleeve 10, the accommodating space 101, the opening 102, the outer sleeve 11, the mounting hole 112, the inner sleeve 12, the limit groove 121, the limit protrusion 122, the cover cylinder 13, the finger hook 131, the cover 132, the first through hole 1321, the upper shaft sleeve 14, the second through hole 141, the positioning shaft sleeve 15, the first ring 151, the second ring 152, the elastic ring 16, the mold extracting needle tube 20, the needle seat 21, the needle tube 22, the ejector needle 30, the limit seat 31, the limit block 311, the abutting part 312, the first connecting part 313, the second connecting part 314, the ejector pin 32, the handle 40, the limit ring 41, the detection sensor 50, the display assembly 60 and the reset elastic piece 70;

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1-4, the embodiment of the application provides a die extractor 100, where the die extractor 100 can be used to cut a filtering membrane to obtain a filtering membrane column, and transfer and fill the cut filtering membrane column into a consumable to be filled.

The mold extractor 100 comprises a sleeve 10, a mold extracting needle tube 20 and an ejector needle 30, wherein the mold extracting needle tube 20 is arranged at one end of the sleeve 10, the mold extracting needle tube 20 is used for cutting a filtering membrane to obtain a filtering membrane column body, and the ejector needle 30 is movably arranged in the sleeve 10 and is configured to be capable of at least partially extending out of the mold extracting needle tube 20 to eject the filtering membrane column body.

In the mold taking device 100 of the embodiment of the application, through the one end of the film taking needle tube 20 arranged at the sleeve 10, the ejector needle head 30 is movably arranged in the sleeve 10 and can be arranged from the film taking needle tube 20, when the mold taking device 100 is used by a user, the film taking needle tube 20 can extend into the filtering film to accurately cut the filtering film so as to obtain a filtering film column body, the film taking needle tube 20 is moved to the consumable part to be filled, the ejector needle head 30 is pushed to extend into the film taking needle tube 20 to eject the filtering film column body, so that the filtering film column body can be conveniently and accurately filled to a specific position in the consumable part to be filled, and the consumable part with the filtering film column body can realize pretreatment of proteomics samples.

In particular, the consumable is a container for proteomic sample pretreatment, i.e., proteomic sample pretreatment is performed in the consumable. The filtering membrane is filled in the consumable and used as a carrier of the proteomics sample, and has a desalting effect and can entrap protein or polypeptide segments thereon. For example, please refer to fig. 2, in this embodiment, the filtering membrane may be a C18 membrane, that is, the application may cut the C18 membrane by the die extractor 100 and transfer and fill the cut C18 membrane column to a specific position in the consumable, so that the pretreatment of the proteomic sample may be implemented later.

As will be appreciated by those skilled in the art, the C18 membrane is a reversed phase stationary phase widely used in the chromatographic field, and is composed of octadecylsilane chemically bonded to a silica gel carrier, and the C18 membrane has high hydrophobicity and is suitable for separating compounds of non-polar to medium polar, and in addition, the C18 membrane has the advantages of high separation efficiency, high sensitivity, high reproducibility, easy operation, and the like.

Referring to fig. 3 and 4, the sleeve 10 may be substantially cylindrical, a receiving space 101 may be formed in the sleeve 10, an opening 102 is formed at one end of the sleeve 10, the opening 102 is communicated with the receiving space 101, the mold taking needle tube 20 is connected with one end of the opening 102 provided in the sleeve 10 and is disposed opposite to the opening 102, and the mold taking needle tube 20 may be communicated with the receiving space 101 through the opening 102. The ejector pin 20 can be used to cut the filter membrane to obtain a column of filter membrane within the ejector pin 20.

The ejector pin 30 is disposed in the accommodating space 101 and can move along the axial direction of the sleeve 10, the maximum movable stroke of the ejector pin 30 along the axial direction of the sleeve 10 can be adjusted according to the length of the mold taking needle tube 30 or the specification length of the consumable to be filled, and the maximum movable stroke of the ejector pin 30 along the axial direction of the sleeve is not limited, for example, in the present application, the maximum movable stroke of the ejector pin 30 is 20 mm.

Further, ejector pin 30 may extend at least partially into ejector pin 20 from opening 102 of sleeve 10 and out of ejector pin 20. In this way, the ejector pin 30 can extend into the mold-taking needle tube 20, and the filter membrane column obtained by cutting the filter membrane by the mold-taking needle tube 20 is ejected, and the filter membrane column is filled into a predetermined position in the consumable to be filled.

The maximum length of the ejector pin 30 extending out of the ejector pin tube 20 may range from 0.9 mm to 21.3 mm. The maximum length of the ejection needle 30 extending out of the mold-taking needle tube 20 can be adjusted according to the specification of the consumable to be filled or the specification length of the mold-taking needle tube 30, and the specific size of the maximum length of the ejection needle 30 extending out of the mold-taking needle tube 20 is not limited. In this way, it is ensured that the ejector pin 30 is able to accurately fill the filtering membrane column into the specific position of the consumable to be filled.

Referring to fig. 3 and 4, in some embodiments, the mold-extracting needle cannula 20 may include a needle hub 21 and a needle cannula 22, the needle hub 21 being detachably disposed on the hub 10, the needle cannula 22 being disposed on the needle hub 21.

Specifically, the needle holder 21 is disposed directly opposite to the opening 102 of the sleeve 10 and is screwed with the sleeve 10 so as to be detachably disposed on the sleeve 10.

Needle tube 22 is provided on needle seat 21, needle tube 22 is circular tube shape, needle tube 22 is used for cutting filtering membrane and generating filtering membrane column, and the generated filtering membrane column is left in needle tube 22. Needle cannula 22 has an inner diameter of 1.6 millimeters or less. For example, the inside diameter of needle cannula 22 may be 0.5 mm, 0.8 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.5 mm, etc., and the inside diameter of needle cannula 22 is not limited and may be set according to the desired diameter of the filter membrane cartridge to be filled with consumable.

It will be appreciated that the type of consumable required for different proteomic samples need not be the same, and that the size of the filtration membrane cartridge required for different types of consumables may be different. Therefore, the needle seat 21 is detachably arranged on the sleeve 10, the die taking needle tube 20 of the die taking device 100 can be conveniently replaced, the die taking device 100 is ensured to accurately cut the filtering membrane, and meanwhile, the die taking device 100 can be enabled to switch filtering membrane columns of different sizes, so that different consumable materials are adapted, and the application scene of the die taking device 100 is promoted.

In addition, needle cannula 22 should have an inside diameter tolerance of 0.01 millimeters or less. Thus, the die-taking needle tube 20 can accurately cut the filtering membrane column body, and the filtering membrane column body can be accurately matched with consumable materials to be filled.

Referring to fig. 4 and 5, in some embodiments, the ejector pin 30 includes a limiting seat 31 and an ejector pin 32, the limiting seat 31 is movably disposed in the sleeve 10, and the ejector pin 32 is fixed on the limiting seat 31 and at least partially extends into the mold-taking needle tube 20.

Specifically, the limiting seat 31 is movable in the accommodating space 101 along the axial direction of the sleeve 10, the ejector pin 32 is located at one end of the limiting seat 31 close to the mold taking needle tube 20 and fixedly connected with the limiting seat 31, and the ejector pin 32 at least partially penetrates out of the accommodating space 101 from the outlet 102 of the sleeve 10 into the needle tube 22. When an external force acts on the limiting seat 31, the limiting seat 31 moves towards the needle tube 22 along the axial direction of the sleeve 10, so that the thimble 32 is pushed to extend out of the needle tube 22, and the filtering membrane column in the needle tube 22 is ejected out of the needle tube 22.

Further, needle 32 may be a solid body having a cylindrical shape, and the diameter of needle 32 may be slightly less than or substantially equal to the inner diameter of needle cannula 22, e.g., 1.4 millimeters, 1.45 millimeters, 1.49 millimeters, etc. for an inner diameter of needle cannula 22 of 1.5 millimeters, etc. In this way, damage to the filter membrane column when the filter membrane column is ejected due to the too small diameter of the guide pin 32 can be avoided.

Referring to fig. 3 and 4, in some embodiments, the mold extractor 100 further includes a return elastic member 70, wherein the return elastic member 70 is sleeved on the ejector pin 30, and the return elastic member 70 is compressed between the sleeve 10 and the limiting seat 31.

The return elastic member 70 may be a compression spring, for example, a coil spring, a leaf spring, a torsion bar spring, a gas spring, a rubber spring, or the like, and is not particularly limited herein.

When external force acts on the limiting seat 31, the limiting seat 31 moves towards the needle tube 22 along the axial direction of the sleeve 10, the limiting seat 31 pushes the thimble 32 to extend out of the needle tube 22, meanwhile, the limiting seat 31 props against the reset elastic piece 70 to generate elastic deformation, the reset elastic piece 70 is compressed, when the external force of the limiting seat 31 disappears, the compressed reset elastic piece 70 props against the limiting seat 31 to move along the axial direction of the sleeve 10 away from the needle tube 22, the limiting seat 31 is reset, and the limiting seat 31 drives the thimble 32 to retract from the needle tube 22.

Referring to fig. 5, the limiting seat 31 may further include an abutting portion 312 and a first connecting portion 313, where the first connecting portion 313 is cylindrical, and the first connecting portion 313 includes opposite ends, one end of which is connected to the abutting portion 31, and the other end of which is fixedly connected to the thimble 32. The diameter of the first connecting portion 313 is smaller than the inner diameter of the reset elastic member 70, one end of the reset elastic member 70 is abutted against the sleeve 10, and the other end of the reset elastic member 70 is sleeved on the first connecting portion and abutted against the abutting portion 312.

In this way, through the setting of the elastic element 70 that resets, the ejector needle 30 can be reset, the ejector needle 30 is prevented from extending from the needle tube 22 at will, so that the die extractor 100 can conveniently cut the filtering membrane of the next time after ejecting the filtering membrane column, and the efficiency of the die extractor 100 is improved.

Referring to fig. 3 and 4, in some embodiments, the sleeve 10 includes an outer sleeve 11 and an inner sleeve 12, the inner sleeve 12 is disposed in the outer sleeve 11 and has a limiting groove 121 formed therein, the limiting groove 121 extends axially along the sleeve 10, and the limiting seat 31 includes a limiting block 311, where the limiting block 311 cooperates with the limiting groove 121 to limit rotation of the ejector needle 30.

In this way, the limit block 311 and the limit groove 121 are matched to prevent the ejector needle 30 from rotating relative to the sleeve 10 to affect the stroke of the ejector needle 30.

Specifically, the inner sleeve 12 is substantially cylindrical, the inner sleeve 12 is disposed at the bottom inside the outer sleeve 11 and abuts against the outer sleeve 11, and the inner sleeve 12 is also detachably connected to the hub 21 of the mold taking needle tube 20 at least partially penetrating the outer sleeve 11, for example, in this embodiment, the portion of the inner sleeve 12 extending out of the outer sleeve 11 is formed with an external thread, the hub 21 is formed with an internal thread which cooperates with the external thread to achieve a threaded connection between the inner sleeve 12 and the hub 21, the mold taking needle tube 20 can be connected to the inner sleeve 12 when the hub 21 is turned clockwise, and the mold taking needle tube 20 can be removed from the inner sleeve 12 when the hub 21 is turned counterclockwise, thereby facilitating replacement of the mold taking needle tube 20.

The limiting seat 31 and the ejector pin 32 are movably arranged in the inner sleeve 12, and the ejector pin 32 can at least partially extend from the inner sleeve 12 to the mold taking needle tube 20. One end of the reset elastic piece 70 is abutted with one end of the inner sleeve 12 close to the mold taking needle tube 20, and one end of the reset elastic piece 70 is abutted with the limit seat 31.

The inner sleeve 12 is provided with a limiting groove 121, and the length direction of the limiting groove 121 is parallel to the axial direction of the inner sleeve 12, that is, the limiting groove 121 extends along the axial direction of the inner sleeve 12. The limiting seat 31 comprises a limiting block 311, the limiting block 311 can extend into the limiting groove 121 from the inner sleeve 12 and can move in the limiting groove 121 along the length direction of the limiting groove 121, and when the limiting block 311 slides to the bottom of the limiting groove 121, the ejector needle 30 reaches the maximum moving stroke. It can be appreciated that the length of the limiting groove 121 defines the movable travel of the ejector pin 30, and the longer the length of the limiting groove 121, the longer the movable travel of the ejector pin 30, so the length of the limiting groove 121 can be set as required, and the specific value is not limited. The width of the limiting groove 121 is greater than or substantially equal to the width of the limiting block 311, so that the limiting block 30 can be limited to rotate in the limiting groove 121, and thus, the ejector pin 30 is prevented from rotating in the sleeve 10.

Referring to fig. 3, in some embodiments, the sleeve 10 includes an outer sleeve 11 and an inner sleeve 12, the inner sleeve 12 is disposed in the outer sleeve 11, a slot (not shown) is formed in the outer sleeve 11, the slot extends along the axial direction of the sleeve 10, the inner sleeve 12 includes a limiting protrusion 122, the limiting protrusion 122 extends along the axial direction of the sleeve 10, and the limiting protrusion 122 and the slot limit the rotation of the inner sleeve 12.

The number of the clamping grooves can be 1, 2 or 3, and the like, and is not particularly limited, for example, in the embodiment of the application, the number of the clamping grooves is 2, and the two clamping grooves are oppositely arranged. The number of the limiting projections 122 is equal to the number of the clamping grooves, and each limiting projection 122 is matched with the clamping groove to limit the rotation of the inner sleeve 12, so that the inner sleeve 12 is prevented from rotating in the outer sleeve 11 to influence the movable stroke of the ejection needle 30.

Referring to fig. 1, 3 and 4, in some embodiments, the stripper 100 includes a handle 40 disposed within the sleeve 10 and connected to the ejector needle 30 to allow a user to manipulate the ejector needle 30 to eject the filtering membrane cartridge.

Thus, the user can push the handle 40 to drive the ejection needle 30 to move by pressing the handle 40, so that the ejector pin 32 extends out of the mold-taking needle tube 20 to eject the filtering membrane column.

Specifically, the handle 40 is a generally cylindrical body, the handle 40 is movably disposed in the sleeve 10 and is opposite to the side of the mold taking needle tube 20, the handle 40 is further connected with the limiting seat 31, and the handle 40 can at least partially penetrate out of the sleeve 10, and the handle 40 can be allowed to be pressed by a user. When the user presses the handle 40, the handle 40 pushes the limiting seat 31 to move along the axial direction of the sleeve 10, and the limiting seat 31 abuts against the ejector pin 32, so that the ejector pin 32 extends out of the mold taking needle tube 20 to eject the filtering membrane column.

In some embodiments, the handle 40 is threadably coupled to the stop block 31 of the ejector needle 30 within the sleeve 10.

Referring to fig. 4 and 5, specifically, the limiting seat 31 further includes a second connecting portion 314, the second connecting portion 314 is located at an end of the abutting portion 312 facing away from the first connecting portion 313 and is connected to the abutting portion 312, and the handle 40 and the second connecting portion 314 can be connected through threads.

It will be appreciated that the push-out travel of the push-out needle 30 can be adjusted by screwing the handle 40 to the limit seat 31, and the push-out travel of the push-out needle 30 can be reduced when the handle 40 is twisted clockwise, and the push-out travel of the push-out needle 30 can be increased when the handle 40 is twisted counterclockwise. Therefore, the ejection stroke of the ejection needle 30 can be adjusted through the arrangement of the threaded connection of the handle 40 and the limiting seat 31, so that the mold extractor 100 can adapt to consumable materials of different types.

In some embodiments, the sleeve 10 further comprises a cap barrel 13, the cap barrel 13 being at least partially inserted into an end of the outer sleeve 11 remote from the mold-taking needle cannula 20, the cap barrel 13 being formed with a finger hook 131.

In this way, the finger hook 131 can assist the hand of the operator to hold, so that the handle 40 is conveniently pressed to enable the ejection needle 30 to extend out of the mold taking needle tube 20 to eject the filtering membrane column.

Specifically, the cover cylinder 13 includes a cover 132 and a finger hook 131, where the cover 132 is covered at one end of the outer sleeve 11 facing away from the mold taking needle tube 20 and is at least partially embedded into the outer sleeve 11, the cover 132 is provided with a first through hole 1321, the axis of the first through hole 1321 is parallel to the moving direction of the ejector needle 30, and the handle 40 is movably inserted into the first through hole 1321 and is connected with the second connecting portion 314 of the limiting seat 31.

Finger hook 131 is located outside outer sleeve 11 and connected to cover 132. Finger hook 131 and cover 132 may be integrally formed to form cover cylinder 13. The finger hook 131 extends from the cover 131 to a direction away from the first through hole 1321 and is formed with an arc, and the width of the finger hook 131 gradually decreases along the cover 131 to a direction away from the first through hole 1321, so that the user can conveniently hold the finger hook.

Further, the cover 132 and the outer sleeve 11 are respectively provided with a first limiting hole, the sleeve 10 further comprises a first elastic pin shaft, and the first elastic pin shaft is arranged in the first limiting holes of the cover 132 and the outer sleeve 11 in a penetrating manner, so that the cover 132 and the outer sleeve 11 are fixedly connected, and the cover 132 can be prevented from rotating relative to the outer sleeve 11.

Referring to fig. 3 and 4, in some embodiments, the sleeve 10 further includes a positioning sleeve 15, where the positioning sleeve 15 is disposed on the inner sleeve 12 and abuts the cover 13, and the positioning sleeve 15 is at least partially embedded in the inner sleeve 12 to limit the ejection of the needle 30.

Specifically, the positioning sleeve 15 includes a first ring 151 and a second ring 152, wherein the outer diameter of the first ring 15 is larger than the inner diameter of the inner sleeve 12 and the diameter of the first through hole 1321, the first ring 151 is covered on the inner sleeve 12 and abuts against the cover cylinder 13, the outer diameter of the second ring 15 is smaller than the inner diameter of the inner sleeve 12, and the second ring 152 is connected with the first ring 151 and embedded in the inner sleeve 12.

The second ring 152 has an inner diameter smaller than the outer diameter of the limit seat 31 for restraining the limit seat 31 within the inner sleeve 12.

In this way, the first ring 151 of the positioning sleeve 15 is covered on the inner sleeve 12 and is abutted with the cover barrel 13, the cover barrel 13 is abutted with the positioning sleeve 15, the inner sleeve 12 is ensured to axially press the outer sleeve 11, the inner sleeve 12 is enabled to be abutted with the outer sleeve 11, the inner sleeve 12 is prevented from moving in the outer sleeve 11, the second ring 152 is embedded in the inner sleeve 12, the limiting seat 31 can be axially limited, the ejector needle 30 can be ensured to extend out of the mold-taking needle tube 20, and the second ring 152 is embedded in the inner sleeve 12, so that the inner sleeve 12 can be prevented from being tightened inwards.

Referring to fig. 3 and 4, in some embodiments, the sleeve 10 further includes an elastic ring 16, and the elastic ring 16 is sleeved on the second ring 152 and abuts against the first ring 151 and the inner sleeve 12, respectively. Wherein the elastic ring 16 is elastically deformable.

Specifically, the elastic ring 16 may be a rubber ring, the inner diameter of the elastic ring 16 is larger than the outer diameter of the second ring 152, the elastic ring 16 is sleeved on the second ring 152, and the elastic ring 16 is respectively abutted with the first ring 151 and the inner sleeve 12 in the axial direction of the sleeve 10. The cover cylinder 13 axially abuts against the positioning shaft sleeve 15, the positioning shaft sleeve 15 axially abuts against the elastic ring 16, the elastic ring 16 axially abuts against the inner sleeve 12, so that the inner sleeve 12 axially abuts against the outer sleeve 11, axial tolerance of the cover cylinder 13, the positioning shaft sleeve 15, the inner sleeve 12 and the outer sleeve 11 can be counteracted due to elastic deformation of the elastic ring 16, axial locking among the cover cylinder 13, the positioning shaft sleeve 15, the inner sleeve 12 and the outer sleeve 11 can be achieved, and ejection stroke of the ejection needle 30 is prevented from being influenced due to looseness of the cover cylinder 13, the positioning shaft sleeve 15 or the inner sleeve 12.

Referring to fig. 3 and 4, in some embodiments, the sleeve 10 further includes an upper sleeve 14, the upper sleeve 14 is covered on one end of the cover 13 far away from the outer sleeve 11, the handle 40 is disposed through the upper sleeve 14, the handle 40 includes a limiting ring 41, and the outer diameter of the limiting ring 41 is larger than the inner diameter of the upper sleeve 14.

Specifically, the upper shaft sleeve 14 is covered at one end of the cover cylinder 13 far away from the outer sleeve 11 and is at least partially embedded into the first through hole 1321, the upper shaft sleeve 14 and the cover cylinder 13 are respectively provided with a plurality of second limiting holes which are circumferentially arranged, the sleeve 10 further comprises a plurality of second elastic pin shafts, and the second elastic pin shafts are arranged in the second limiting holes of the cover cylinder 13 and the upper shaft sleeve 14 in a penetrating manner, so that the upper shaft sleeve 14 and the cover cylinder 13 are fixedly connected, and the upper shaft sleeve 14 can be prevented from rotating relative to the cover cylinder 13.

Further, the upper shaft sleeve 14 is further provided with a second through hole 141, the axis of the second through hole 141 coincides with the axis of the first through hole 1321, the handle 40 is movably arranged in the second through hole 141 of the upper shaft sleeve 14 in a penetrating manner, the handle 40 further comprises a limiting ring 41 positioned in the first through hole 1321, and the outer diameter of the limiting ring 41 is larger than the inner diameter of the first through hole 1321, so that the handle 40 is limited, and the handle 40 is prevented from being pulled out from the upper shaft sleeve 14.

Thus, through the setting that the external diameter of spacing ring 41 is greater than the internal diameter of upper axle sleeve 14, upper axle sleeve 14 can carry out spacing to spacing ring 41 to avoid handle 40 to pull out from upper axle sleeve 14, guarantee that die extractor 100 can normally work.

Referring to fig. 3 and 4, in some embodiments, the stripper 100 further includes a detection sensor 50, the detection sensor 50 being configured to detect the stroke of the ejector pin 30.

Specifically, the detecting sensor 50 is located in the outer sleeve 11 and is spaced from the limit seat 31 of the ejector pin 30, the limit seat 31 includes a reflecting surface 3111 opposite to the detecting sensor 50, the reflecting surface 3111 may be located on the limit block 311, the detecting sensor 50 may transmit a signal to the reflecting surface 3111 in real time and receive a signal reflected by the reflecting surface 3111, so as to detect a distance from the detecting sensor 50 to the reflecting surface 3111, thereby obtaining a stroke of the ejector pin 30.

In this way, through the setting of the detection sensor 50, the stroke of the ejection needle 30 can be detected in real time, so that an operator can grasp the stroke change of the ejection needle 30 in real time, and the filtering membrane column can be ensured to be accurately filled in the specific position of the consumable.

Referring to fig. 3 and 4, in some embodiments, the mold extractor 100 further includes a display assembly 60, where the display assembly 60 is electrically connected to the detection sensor 50, and is used for displaying the stroke detected by the detection sensor 50.

Specifically, the outer sleeve 11 is provided with a mounting hole 112, the display assembly 60 is located between the outer sleeve 11 and the cover cylinder 13 and at least partially embedded in the mounting hole 112, and the display assembly 60 is electrically connected with the detection sensor 50 and is used for displaying the stroke detected by the detection sensor 50.

Further, the display assembly 60 may include a display panel, a power interface, and a switch button. Wherein, the display panel is used for displaying the stroke of the ejection needle 30 detected by the detection sensor 50 in real time. The switch button is used for starting the display assembly 60, starting when the switch button is pressed, waking up the display panel, and closing when the switch button is pressed again. When the switch button is not pressed, the display panel continuously jumps and flashes, the electric quantity is reminded to be insufficient, the display module 60 needs to be charged as soon as possible, and the display module can be charged by connecting a type-c charging connector with the voltage of not more than 12V to a power interface, so that the display module needs to be continuously charged for 1 hour once; and after the charging is finished, the type-c charging connector is pulled out.

In addition, when correcting the stroke of the ejector pin 30, by rotating the handle 40 counterclockwise to the highest position, the switch button is pressed for a long time until the display screen flicks to display "20.0", and the switch button is released, the correction is completed.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. An impression device, characterized in that the impression device includes: sleeve; A mold-taking needle tube is provided at one end of the sleeve, and the mold-taking needle tube is used to cut the filter membrane to obtain a filter membrane cylinder; An ejection needle is movably provided in the sleeve and configured to at least partially extend from the mold-taking needle tube to eject the filter membrane cylinder. 2. The impression taking device according to claim 1, characterized in that, the impression taking needle tube includes a needle seat and a needle tube, the needle seat is detachably provided on the sleeve, and the needle tube is provided on the on the needle seat. 3. The impression taker according to claim 2, wherein the inner diameter of the needle tube is less than or equal to 1.6 mm. 4. The mold taker according to claim 1, characterized in that the ejection needle includes a limiting seat and an ejector pin, the limiting seat is movably arranged in the sleeve, and the ejector pin is fixed on the on the limiting seat and at least partially extends into the mold-taking needle tube. 5. The impression taker according to claim 4, characterized in that the impression taker further includes a reset elastic member sleeved on the ejection needle, and the reset elastic member is compressed between the sleeve and the between the limiting seats. 6. The mold taker according to claim 5, wherein the sleeve includes an outer sleeve and an inner sleeve, and the inner sleeve is disposed in the outer sleeve and forms a limiting groove, so The limiting groove extends along the axial direction of the sleeve, and the limiting seat includes a limiting block that cooperates with the limiting groove to limit the rotation of the ejection needle. 7. The mold taker according to claim 5, characterized in that the sleeve includes an outer sleeve and an inner sleeve, the inner sleeve is arranged in the outer sleeve, and the outer sleeve has an opening. There is a slot extending along the axial direction of the sleeve, and the inner sleeve includes a limiting protrusion extending along the axial direction of the sleeve. The limiting protrusion cooperates with the slot to limit the inner sleeve. The sleeve turns. 8. The impression taker of claim 1, wherein the impression taker includes a handle disposed within the sleeve and connected to the ejection needle to allow a user to operate the Push out the needle to push out the filter membrane cylinder. 9. The mold taker according to claim 8, characterized in that the ejection needle includes a limiting seat and an ejector pin, the limiting seat is movably arranged in the sleeve, and the ejector pin is fixed on the The limit seat is on and at least partially extends into the mold-taking needle tube, and the handle is threadedly connected to the limit seat. 10. The impression device according to claim 9, wherein the sleeve includes an outer sleeve and a cover sleeve, the impression needle is disposed at one end of the outer sleeve, and at least part of the cover sleeve Embedding the end of the outer sleeve away from the mold-taking needle tube, the cover sleeve is formed with a finger hook. 11. The mold taker according to claim 10, wherein the sleeve further includes an inner sleeve and a positioning sleeve, the inner sleeve is arranged in the outer sleeve, and the positioning sleeve It also includes a first ring and a second ring. The first ring is covered on the inner sleeve and contacts the cover barrel. The second ring is connected to the first ring and embedded in the inner sleeve. barrel, the outer diameter of the limiting seat is larger than the inner diameter of the second ring. 12. The mold taker according to claim 11, wherein the sleeve further includes an elastic ring, and the elastic ring is sleeved on the second ring and connected with the first ring and the inner ring respectively. The sleeve abuts. 13. The mold taker according to claim 10, wherein the sleeve further includes an upper sleeve, and the upper sleeve cover is provided at an end of the cover barrel away from the outer sleeve, and the The handle is inserted through the upper sleeve, and the handle includes a limiting ring. The outer diameter of the limiting ring is larger than the inner diameter of the upper sleeve. 14. The impression taker according to claim 1, wherein the impression taker further includes a detection sensor, the ejection needle includes a reflective surface, and the detection sensor is configured to detect the distance of the reflective surface to determine the distance of the reflective surface. The stroke of the ejection needle. 15. The impression taker according to claim 14, characterized in that the impression taker further includes a display component, the display component is electrically connected to the detection sensor and is used to display the stroke detected by the detection sensor. .