CN114432895B

CN114432895B - Needle type filter

Info

Publication number: CN114432895B
Application number: CN202210140214.3A
Authority: CN
Inventors: 李永青
Original assignee: Shenzhen Yi Tianyuan Environmental Technology Co ltd
Current assignee: Shenzhen Yi Tianyuan Environmental Technology Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2023-04-28
Anticipated expiration: 2042-02-16
Also published as: CN114432895A

Abstract

The invention relates to the technical field of filter equipment, and discloses a needle-type filter, which comprises a filter unit, wherein an anti-impact buffer unit is further arranged in a housing, when raw liquid to be filtered is injected into the filter unit through an injector, the raw liquid flows into the housing through a sleeve pipe fitting, firstly flows into a filter membrane for filtering after impact relief and buffering through a buffer guide piece, the buffer guide piece can buffer the raw liquid injected into the housing, the phenomenon that the filter membrane is damaged due to the impact of the raw liquid from the sleeve pipe piece to the filter membrane is avoided, the filter membrane is protected, and meanwhile, the raw liquid flows into the filter membrane through the flow guide of the buffer guide piece, so that the raw liquid flowing into the filter membrane is distributed more uniformly, and the filtering effect is improved.

Description

Needle type filter

Technical Field

The invention relates to the technical field of filter equipment, in particular to a needle type filter.

Background

The needle filter is mainly applied to sample prefilter, clarifying and degerming and filtering for removing particles, liquid and gas, and is also applicable to sample preparation, purification, pretreatment, biological product preparation, filtration of liquid samples such as tissue culture medium, microbial medium, buffer solution and the like, purification and clarification of highly corrosive solution, filtration of a small amount of samples, impurity removal and precipitation of samples.

The existing needle-type filter has the following defects that an inlet is formed in a filter shell, the area of the inlet is too small relative to the filtering area of a filter membrane, the section of a sample liquid flow pushed out by the inlet is small, the flow speed is high, and the local pressure on the filter membrane is too large, so that the filter membrane is easy to damage.

In view of the above, the present invention provides a needle filter.

Disclosure of Invention

The invention aims to provide a needle-type filter, which comprises a filter unit, wherein an anti-impact buffer unit is further arranged in a housing, when raw liquid to be filtered is injected into the filter unit through an injector, the raw liquid flows into the housing through a sleeve pipe fitting, is subjected to impact unloading buffering through a buffer guide piece and then flows into a filter membrane in a dispersed manner for filtering treatment, the buffer guide piece can buffer the raw liquid injected into the housing, the phenomenon that the filter membrane is damaged due to the impact of the raw liquid on the filter membrane from the sleeve pipe piece is avoided, the filter membrane is protected, and meanwhile, the raw liquid flows into the filter membrane through the flow guiding and dispersing of the buffer guide piece, so that the raw liquid flowing into the filter membrane is distributed more uniformly, the filtering effect is improved, and the problem in the background technology is solved.

In order to achieve the above purpose, the present invention provides the following technical solutions: the needle type filter comprises a filter unit, wherein the filter unit is provided with a housing and a sleeve part which is arranged at the upper end of the housing and is communicated with the housing, a liquid outlet pipe is fixedly arranged at the lower end of the housing, a filter membrane is fixedly arranged in the housing, an anti-impact buffer unit is further arranged in the housing, the anti-impact buffer unit comprises a fixed frame part fixedly connected to the inner wall of the housing and a buffer guide part connected to the fixed frame part, the anti-impact buffer unit is fixedly arranged above the filter membrane, and raw liquid flowing into the housing through the sleeve part is dispersed and flows into the filter membrane after being subjected to impact unloading buffering by the anti-impact buffer unit;

the filter membrane connects the groove and sets up the main subassembly that connects in the inslot portion at the face including setting up on the filter membrane surface, and the main subassembly that connects is including setting up the main case that connects in the inslot portion that connects of face, sets up the side tank in main case one side, sets up the screens board on the side tank surface, sets up the friction block on the screens board surface to and set up the rubber sleeve dish that connects the case bottom in main, the inside that connects the case is run through and is provided with the installation sleeve, and the upper surface of installation sleeve is provided with switch, switch and the battery electric connection who sets up in the installation sleeve are provided with the curb plate on the surface of installation sleeve.

Further, one end of the installation sleeve is connected with the rubber sleeve disk, a cylinder groove is formed in the outer surface of the installation sleeve, an electromagnet and a branch spring are arranged in the cylinder groove, one end of the branch spring is connected with the side plate, and the electromagnet is magnetically connected with the side plate.

Further, the fixed frame piece is a frame ring A fixedly connected to the inner wall of the housing, the cross section shape of the frame ring A is the same as that of the housing, and the buffer flow guide piece is provided with a support frame rod A fixedly welded to the inner wall of the frame ring A and a flow guide dispersion tube seat fixedly connected to the support frame rod A;

the flow guiding dispersion tube seat comprises a tube body and a flow guiding seat fixedly connected to the lower end of the tube body, and a rubber gasket is fixedly arranged at the upper end of the tube body.

Further, the lower extreme of body is provided with the liquid storage bucket bottom, and the intercommunication pore has been seted up to the bottom of liquid storage bucket bottom.

Further, a liquid storage cavity is formed in the middle of the flow guide seat, a liquid spraying hole is formed in the side face of the flow guide seat, and the liquid spraying hole is communicated with the liquid storage cavity.

Further, the fixed frame piece comprises a frame ring B fixedly connected to the inner wall of the housing and a dispersion air guide sleeve fixedly arranged on the inner wall of the frame ring B;

the dispersing guide cover is of a conical structure, a through hole is formed in the middle of the dispersing guide cover, a guide channel is formed in the upper end face of the dispersing guide cover, and a water dripping hole is formed in the guide channel.

Further, the buffering guide piece comprises a fixed frame seat fixedly arranged on the inner wall of the frame ring B and a reset plug head arranged on the upper end surface of the fixed frame seat;

the fixed frame seat comprises a support frame rod B connected to the inner wall of the frame ring B and a round seat plate fixedly connected to the other end of the support frame rod B.

Further, the reset plug head is provided with a reset spring and a hemispherical block fixedly arranged at the upper end of the reset spring, and the lower end of the reset spring is fixedly connected to the upper end face of the round seat plate.

Further, the housing is of a circular structure, the upper end face of the housing is provided with a convex cambered surface top, and one side of the housing is provided with a plane end.

Further, the sleeve member includes a rubber sleeve and a sealing rubber skirt fixedly mounted on the outer side of the rubber sleeve.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a needle type filter, a surface connection groove is arranged on the outer surface of a filter membrane, a main connection component is arranged in the surface connection groove, a main connection box is arranged in the surface connection groove, a side groove is arranged on one side of the main connection box, a clamping plate is arranged on the outer surface of the side groove, a friction block is arranged on the outer surface of the clamping plate, a rubber sleeve disk is arranged at the bottom of the main connection box, a mounting sleeve is arranged in the main connection box in a penetrating manner, a power switch is arranged on the upper surface of the mounting sleeve, the power switch is electrically connected with a battery arranged in the mounting sleeve, a side plate is arranged on the outer surface of the mounting sleeve, one end of the mounting sleeve is connected with the rubber sleeve disk, a barrel groove is arranged on the outer surface of the mounting sleeve, an electromagnet and a branch spring are arranged in the barrel groove, one end of the branch spring is connected with the side plate, and the electromagnet is magnetically connected with the side plate.

2. According to the needle type filter provided by the invention, the anti-impact buffer unit is arranged in the housing, the fixed frame piece of the anti-impact buffer unit is fixedly connected to the inner wall of the housing, the buffer guide piece is fixedly arranged on the fixed frame piece, the anti-impact buffer unit is fixedly arranged above the filter membrane, when the stock solution to be filtered is injected into the filter unit through the injector, the stock solution flows into the housing through the sleeve piece, firstly, the stock solution flows into the filter membrane in a dispersed manner after being subjected to impact unloading buffering through the buffer guide piece, the buffer guide piece can buffer the stock solution injected into the housing, the phenomenon of damage to the filter membrane caused by the impact of the stock solution on the filter membrane from the sleeve piece is avoided, the filter membrane is protected, and meanwhile, the stock solution flows into the filter membrane in a dispersed manner through the flow guiding of the buffer guide piece, so that the stock solution flowing into the filter membrane is distributed more uniformly, and the filtering effect is improved.

3. According to the needle type filter provided by the invention, the support hack lever A is fixedly welded on the inner wall of the frame ring A, the diversion dispersion pipe seat is fixedly connected to the support hack lever A, the rubber gasket is fixedly arranged at the upper end of the pipe body, so that the sealing effect is better when the pipe body is connected with the housing, the raw liquid flowing into the housing from the sleeve part can not flow into the pipe body in a seepage manner, the bottom of the pipe body is provided with the liquid storage bucket bottom, the bottom of the liquid storage bucket bottom is provided with the communication pore canal and the liquid storage cavity arranged in the middle of the diversion seat, the side surface of the diversion seat is provided with the liquid spraying hole, the liquid spraying hole is communicated with the liquid storage cavity, after the raw liquid is injected into the pipe body, the raw liquid is buffered through the diversion seat and accumulated in the liquid storage cavity, and is continuously pressurized and injected through the injector, the raw liquid accumulated in the liquid storage cavity is dispersed and sprayed out from the liquid spraying hole, and the raw liquid sprayed from the liquid spraying hole cannot directly impact the filter membrane, so that the raw liquid sprayed from the liquid spraying hole is prevented from directly, and the filter membrane is dispersed and sprayed from the liquid storage hole, and is uniformly sprayed, and falls on the filter membrane, and compared with a traditional needle type filter.

4. According to the needle type filter provided by the invention, the dispersing guide cover is fixedly arranged on the inner wall of the frame ring B, the penetrating opening is formed in the middle of the dispersing guide cover with the conical structure, the reset spring with the hemispherical block arranged at the upper end is fixedly arranged on the upper end face of the round seat plate, the round seat plate is connected to the inner wall of the frame ring B through the support rod B, the dispersing guide cover is covered on the reset blocking opening head, the hemispherical block is exposed from the penetrating opening, the reset spring is not compressed under the condition of no primary liquid impact, the hemispherical block is supported to be contacted with the lower end of the sleeve member, the blocking operation is carried out on the lower end of the sleeve member, when the primary liquid is injected under the pressurization of the injector, the hemispherical block is compressed, the primary liquid flows into the dispersing guide cover, and flows in a dispersing way formed on the upper end face of the dispersing guide cover through the drip opening formed in the guide way, the filter membrane can be effectively buffered, the filter membrane can be prevented from flowing in, the primary liquid can be uniformly sprayed on the filter membrane, and the filtering effect can be improved.

5. According to the needle type filter provided by the invention, the plane end is arranged on one side of the housing, so that when the needle type filter is placed, one side of the housing, which is provided with the plane end, can be placed on the placing surface, compared with a traditional round needle type filter, the needle type filter cannot rotate when placed, the fixing effect is better and more convenient, the sealing rubber skirt is fixedly arranged on the outer side of the rubber sleeve, when the needle type filter is connected with an injector with the diameter larger than that of the rubber sleeve, the rubber sleeve can be inserted into the needle tube, the sealing rubber skirt is used for sealing, and when the needle type filter is connected with the injector with the diameter smaller than that of the rubber sleeve, the rubber sleeve is sleeved on the needle tube for connection, so that the needle type filter is convenient to use.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of a needle filter according to the present invention;

FIG. 2 is a schematic view of a filter unit of the needle filter of the present invention;

FIG. 3 is a schematic view of the attachment of the housing and sleeve member of the needle filter of the present invention;

FIG. 4 is a schematic view of an anti-impact buffer unit according to an embodiment of the present invention;

FIG. 5 is a schematic illustration of a flow-directing dispersion tube base of a needle filter of the present invention;

FIG. 6 is a schematic view of a second embodiment of a spike filter according to the present invention;

FIG. 7 is a schematic view of a buffer baffle according to a second embodiment of the needle filter of the present invention;

FIG. 8 is a schematic view showing the overall structure of a needle filter according to a second embodiment of the present invention;

FIG. 9 is a view showing a state where the stock solution of the needle filter of the present invention does not impact the buffer baffle;

FIG. 10 is a view showing the state of the needle filter of the present invention when the stock solution impacts the buffer baffle;

FIG. 11 is a schematic view of the structure of the filter membrane of the needle filter of the present invention;

fig. 12 is a schematic view showing a main joint assembly of the needle filter according to the present invention in a disassembled structure.

In the figure: 1. a filter unit; 11. a housing; 111. a convex cambered surface top; 112. a planar end; 12. a sleeve member; 121. a rubber sleeve; 122. sealing the rubber skirt; 13. a liquid outlet pipe; 14. a filter membrane; 141. a surface connection groove; 142. a main joint component; 1421. a main junction box; 1422. a side groove; 1423. a clamping plate; 1424. a friction block; 1425. a rubber sleeve disk; 1426. a mounting sleeve; 14261. a barrel groove; 14262. an electromagnet; 14263. a branch spring; 1427. a power switch; 1428. a side plate; 2. an anti-impact buffer unit; 21. fixing the frame member; 211. a frame ring A; 201. a frame ring B; 202. a dispersion air guide sleeve; 2021. a through hole; 2022. a flow guide channel; 2023. a drip port; 22. buffering the flow guide piece; 221. a support rack rod A; 222. a flow guiding dispersion tube seat; 2221. a tube body; 22211. a liquid storage bucket bottom; 22212. a communicating duct; 2222. a diversion seat; 22221. a liquid storage cavity; 22222. a liquid spraying hole; 2223. a rubber gasket; 203. a fixed frame base; 2031. a support frame rod B; 2032. a round seat plate; 204. resetting the plugging head; 2041. a return spring; 2042. hemispherical blocks.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-3, a needle type filter comprises a filter unit 1, the filter unit 1 is provided with a housing 11 and a sleeve 12 which is installed at the upper end of the housing 11 and is communicated with the housing 11, a liquid outlet pipe 13 is fixedly arranged at the lower end of the housing 11, a filter membrane 14 is fixedly installed in the housing 11, an anti-impact buffer unit 2 is further arranged in the housing 11, the anti-impact buffer unit 2 comprises a fixed frame 21 fixedly connected to the inner wall of the housing 11 and a buffer guide 22 connected to the fixed frame 21, the anti-impact buffer unit 2 is fixedly arranged above the filter membrane 14, raw liquid flowing into the housing 11 through the sleeve 12 is dispersed and flows into the filter membrane 14 after impact buffer is discharged through the anti-impact buffer unit 2, the filter membrane 14 comprises a surface connecting groove 141 arranged on the outer surface of the filter membrane 14 and a main connecting component 142 arranged in the surface connecting groove 141, the main connecting component 142 comprises a main connecting box 1421 arranged in the surface connecting groove 141, a side groove 2 arranged on one side of the main connecting box 1421, a clamping plate 1423 arranged on the outer surface of the side groove 1422 and a clamping plate 1426 arranged on the outer surface of the side groove 1426, a side plate 1426 is arranged on the inner surface of the side plate 1426 and is connected with a side plate 1426, a side plate 1426 is arranged on the inner surface of the side plate 1426 of the main sleeve, a side plate 1426 is connected with a side plate 1426, a side plate 1426 is arranged on the side plate 1426, a side plate is connected with a side plate 1426, and a side plate is arranged on the side plate 1426, and a sleeve 1426 is arranged on the side plate is connected with a side plate, and a sleeve 1426, and a sleeve is arranged.

Through set up the protection impact buffer unit 2 in the inside of housing 11, the fixed frame 21 fixed connection of protection impact buffer unit 2 is on housing 11 inner wall and fixed mounting buffering water conservancy diversion spare 22 on fixed frame 21, and the fixed top that sets up at filter membrane 14 of protection impact buffer unit 2, when the injection needs filterable stoste to filter unit 1 through the syringe, the stoste flows into housing 11 through the sleeve pipe spare 12, firstly unload impact buffering through buffering water conservancy diversion spare 22 and then filter the processing on dispersion inflow filter membrane 14, buffering water conservancy diversion spare 22 can be to the injection into the stoste in housing 11 first and buffer, stopped the stoste to impact the phenomenon emergence to filter membrane 14 on the filter membrane 14 from sleeve pipe spare 12, protect filter membrane 14, the stoste is through buffering water conservancy diversion spare 22 water conservancy diversion dispersion inflow filter membrane 14 on, make the stoste distribution that flows into on the filter membrane 14 more even, improve the filter effect, when installing filter membrane 14, run through installing sleeve 1426 and install in main joint case 1421 inside, close the power that is connected with switch 1427 earlier, make card electromagnet 14262 to separate the side plate 1424 to the side plate 1424, thereby can be separated by the friction plate 1424 to the side plate 1424, can be in the friction plate 1424, can be separated to the side plate 1424, thereby can be in the friction plate 1424, can be solved, and the friction plate 1424 can be separated to the side plate can be contacted to the face down.

Example 1

Referring to fig. 1-3, a needle type filter includes a filter unit 1, the filter unit 1 is provided with a housing 11 and a sleeve member 12 mounted at an upper end of the housing 11 and communicated with the housing 11, a drain pipe 13 is fixedly mounted at a lower end of the housing 11, a filter membrane 14 is fixedly mounted in the housing 11, an anti-impact buffer unit 2 is further mounted in the housing 11, the anti-impact buffer unit 2 includes a fixed frame member 21 fixedly connected to an inner wall of the housing 11 and a buffer guide member 22 connected to the fixed frame member 21, the anti-impact buffer unit 2 is fixedly disposed above the filter membrane 14, and a raw liquid flowing into the housing 11 through the sleeve member 12 is dispersed and flows into the filter membrane 14 after impact buffering is discharged through the anti-impact buffer unit 2.

Referring to fig. 4-5, the fixing frame 21 is a frame ring a211 fixedly connected to the inner wall of the housing 11, and the frame ring a211 has the same cross-sectional shape as the housing 11.

The buffer flow guide 22 is provided with a support rod A221 fixedly welded on the inner wall of the frame ring A211 and a flow guide dispersion tube seat 222 fixedly connected on the support rod A221, wherein the flow guide dispersion tube seat 222 comprises a tube body 2221 and a flow guide seat 2222 fixedly connected at the lower end of the tube body 2221, and a rubber gasket 2223 is fixedly arranged at the upper end of the tube body 2221.

The lower extreme of body 2221 is provided with holds liquid bucket end 22211, and the intercommunication pore 22212 has been seted up to the bottom of holding liquid bucket end 22211, and hold liquid chamber 22221 has been seted up to the centre of guide holder 2222 to set up liquid spraying hole 22222 in the side of guide holder 2222, and liquid spraying hole 22222 communicates with hold liquid chamber 22221.

The support frame rod A221 is fixedly welded on the inner wall of the frame ring A211, the diversion dispersion tube seat 222 is fixedly connected to the support frame rod A221, and the rubber gasket 2223 is fixedly arranged at the upper end of the tube body 2221, so that the sealing effect is better when the tube body 2221 is connected with the housing 11, the stock solution flowing into the housing 11 from the sleeve member 12 can flow into the tube body 2221 without leakage, the lower end of the tube body 2221 is provided with the liquid storage bucket bottom 22211, the bottom of the liquid storage bucket bottom 22211 is provided with the liquid storage cavity 22221 which is communicated with the liquid storage cavity 22212 and is arranged in the middle of the diversion seat 2222, the liquid spraying hole 22222 is formed in the side face of the diversion seat 2222, the liquid spraying hole 22222 is communicated with the liquid storage cavity 22221, after the stock solution is injected into the tube body 2221, the stock solution is buffered through the diversion seat 2222 and is accumulated in the liquid storage cavity 22221, the stock solution stored in the liquid storage cavity 22221 is continuously pressurized and injected through the injector, the stock solution stored in the liquid storage cavity 22221 is sprayed out of the hole 22 in a dispersing way, and the liquid is sprayed out of the liquid storage cavity 22, the liquid is enabled to be sprayed out of the liquid storage cavity 22214, and the liquid is sprayed out of the liquid storage cavity 22214 is not directly, and the liquid storage cavity 22214 is sprayed on the filter membrane, and the filter membrane is sprayed out of the filter is more evenly by the liquid, and has the effect is compared with the liquid spraying effect.

Referring to fig. 3, the casing 11 is of a circular structure, the upper end surface of the casing 11 is provided with a convex arc top 111, and a plane end 112 is arranged at one side of the casing 11, the sleeve member 12 comprises a rubber sleeve 121 and a sealing rubber skirt 122 fixedly installed at the outer side of the rubber sleeve 121, and the plane end 112 is arranged at one side of the casing 11, so that when the needle type filter is placed, one side of the casing 11 provided with the plane end 112 can be placed on a placing surface.

Example two

Referring to fig. 1-3 and 8, a needle-type filter includes a filter unit 1, wherein the filter unit 1 is provided with a housing 11 and a sleeve member 12 mounted at an upper end of the housing 11 and communicated with the housing 11, a liquid outlet pipe 13 is fixedly mounted at a lower end of the housing 11, a filter membrane 14 is fixedly mounted in the housing 11, an anti-impact buffer unit 2 is further mounted in the housing 11, the anti-impact buffer unit 2 includes a fixed frame member 21 fixedly connected to an inner wall of the housing 11 and a buffer guide member 22 connected to the fixed frame member 21, the anti-impact buffer unit 2 is fixedly disposed above the filter membrane 14, and a stock solution flowing into the housing 11 through the sleeve member 12 is dispersed and flows into the filter membrane 14 after being impact-buffered by the anti-impact buffer unit 2.

Referring to fig. 6-7, the fixed frame member 21 includes a frame ring B201 fixedly connected to an inner wall of the housing 11, and a dispersion air guide sleeve 202 fixedly installed on the inner wall of the frame ring B201, the dispersion air guide sleeve 202 has a conical structure, a through hole 2021 is formed in the middle of the dispersion air guide sleeve 202, a flow guiding channel 2022 is formed in an upper end surface of the dispersion air guide sleeve 202, and a water dripping hole 2023 is formed in the flow guiding channel 2022.

The buffering guide 22 comprises a fixed frame base 203 fixedly arranged on the inner wall of the frame ring B201 and a reset plug head 204 arranged on the upper end face of the fixed frame base 203, and the fixed frame base 203 comprises a support rod B2031 connected on the inner wall of the frame ring B201 and a round seat plate 2032 fixedly connected with the other end of the support rod B2031.

The reset plug head 204 is provided with a reset spring 2041 and a hemispherical block 2042 fixedly arranged at the upper end of the reset spring 2041, and the lower end of the reset spring 2041 is fixedly connected to the upper end face of the round base plate 2032.

Referring to fig. 9-10, a dispersing guide cover 202 is fixedly installed on the inner wall of a frame ring B201, a through hole 2021 is formed in the middle of the dispersing guide cover 202 with a conical structure, a restoring spring 2041 with a hemispherical block 2042 installed at the upper end is fixedly installed on the upper end face of a round base plate 2032, the round base plate 2032 is connected to the inner wall of the frame ring B201 through a support rod B2031, the dispersing guide cover 202 covers the restoring plug head 204, the hemispherical block 2042 is exposed from the through hole 2021, under the condition of no stock solution impact, the restoring spring 2041 is not compressed, the hemispherical block 2042 is supported to be in contact with the lower end of a sleeve member 12, the lower end of the sleeve member 12 is plugged, when the stock solution is injected under pressure by a syringe, the hemispherical block 2042 is impacted, the restoring spring 2041 is compressed, the hemispherical block 2042 is retracted into the through hole 2021, the stock solution flows into the dispersing guide cover 202 through a guide channel 2022 formed at the upper end face of the dispersing guide cover 202, under the condition of no stock solution impact is carried out on a drip flow channel 2023 formed in the guide channel 2022, the stock solution can be effectively prevented from flowing on the filter membrane 14, the filter membrane can be uniformly sprayed, and can be effectively prevented from flowing on the filter membrane 14 can be uniformly sprayed on the filter membrane can be effectively is effectively protected.

The housing 11 is circular structure, and the up end of housing 11 sets up to protruding cambered surface top 111, and set up to plane end 112 in one side of housing 11, sleeve member 12 includes rubber sleeve 121 and fixed mounting in the sealed rubber skirt 122 in the rubber sleeve 121 outside, through set up to plane end 112 in one side of housing 11, make when putting this syringe needle formula filter, can place the housing 11 on the plane end 112's one side, compare with traditional circular syringe needle formula filter, this syringe needle formula filter can not take place to rotate when placing, fixed effect is better more convenient, and set up sealed rubber skirt 122 in the outside of rubber sleeve 121 is fixed, can insert this syringe needle formula filter in the syringe needle pipe with the syringe that syringe needle pipe diameter is greater than rubber sleeve 121 diameter, seal through sealed rubber skirt 122, when being connected this syringe needle formula filter with syringe needle pipe diameter is less than rubber sleeve 121 diameter, connect with the rubber sleeve 121 suit on the syringe needle pipe, facilitate the use.

To sum up: the invention provides a needle-type filter, which comprises a filter unit 1, wherein an anti-impact buffer unit 2 is further arranged in a housing 11, a fixed frame piece 21 of the anti-impact buffer unit 2 is fixedly connected to the inner wall of the housing 11, a buffer guide piece 22 is fixedly arranged on the fixed frame piece 21, the anti-impact buffer unit 2 is fixedly arranged above a filter membrane 14, when raw liquid needing to be filtered is injected into the filter unit 1 through an injector, the raw liquid flows into the housing 11 through a sleeve piece 12, firstly, is subjected to impact relief buffering through the buffer guide piece 22 and then is dispersed and flows into the filter membrane 14 for filtering treatment, the buffer guide piece 22 can firstly buffer the raw liquid injected into the housing 11, the phenomenon that the filter membrane 14 is damaged due to the impact of the raw liquid from the sleeve piece 12 onto the filter membrane 14 is avoided, the filter membrane 14 is protected, and meanwhile, the raw liquid flows into the filter membrane 14 through the buffer guide piece 22 in a diversion manner, so that the raw liquid flowing into the filter membrane 14 is more uniformly distributed, and the filtering effect is improved; the support frame rod A221 is fixedly welded on the inner wall of the frame ring A211, the diversion dispersing tube seat 222 is fixedly connected on the support frame rod A221, the rubber gasket 2223 is fixedly arranged at the upper end of the tube body 2221, so that the sealing effect is better when the tube body 2221 is connected with the housing 11, the raw liquid flowing into the housing 11 from the sleeve member 12 can flow into the tube body 2221 without leakage, the lower end of the tube body 2221 is provided with the liquid storage bucket bottom 22211, the bottom of the liquid storage bucket bottom 22211 is provided with the communication pore canal 22212 which is communicated with the liquid storage cavity 22221 arranged in the middle of the diversion seat 2222, the side surface of the diversion seat 2222 is provided with the liquid spraying hole 22222, the liquid spraying hole 22222 is communicated with the liquid storage cavity 22221, when the stock solution is injected into the pipe body 2221, the stock solution is buffered through the guide seat 2222 and is accumulated in the liquid storage cavity 22221, the injection is continuously carried out under pressure through the injector, the stock solution accumulated in the liquid storage cavity 22221 is dispersed and sprayed out from the liquid spraying hole 22222, and as the liquid spraying hole 22222 is transversely opened, the stock solution sprayed out from the liquid spraying hole 22222 can not directly impact the filter membrane 14, the filter membrane 14 is protected, and meanwhile, the stock solution is dispersed and sprayed out from the liquid spraying hole 22222 and uniformly falls on the filter membrane 14, so that compared with the traditional needle type filter, the filtering effect is better; the dispersing guide cover 202 is fixedly arranged on the inner wall of the frame ring B201, the through hole 2021 is formed in the middle of the dispersing guide cover 202 with a conical structure, the reset spring 2041 with the hemispherical block 2042 arranged at the upper end is fixedly arranged on the upper end face of the round base plate 2032, the round base plate 2032 is connected to the inner wall of the frame ring B201 through the support rod B2031, the dispersing guide cover 202 covers the reset blocking mouth 204, the hemispherical block 2042 is exposed from the through hole 2021, under the condition of no raw liquid impact, the reset spring 2041 is not compressed, the hemispherical block 2042 is supported to be in contact with the lower end of the sleeve member 12, the lower end of the sleeve member 12 is subjected to plugging operation, when the raw liquid is pressurized and injected through the injector, the hemispherical block 2042 is impacted by the raw liquid, the reset spring 2041 is compressed, the hemispherical block 2042 is retracted into the through hole 2021, the raw liquid flows into the dispersing guide cover 202, and is dispersed and flows through the guide channels 2022 formed on the upper end face of the dispersing guide cover 202, and dripping water drops through the guide channels 2023 formed in the guide channels 2022 on the filter membrane 14, the raw liquid can be effectively and uniformly sprayed on the filter membrane 14, the filtering effect of the raw liquid can be guaranteed, and the raw liquid can be uniformly sprayed on the filter membrane 14 is guaranteed; through setting up to plane end 112 in one side of housing 11 for when putting this syringe needle formula filter, can place the side that housing 11 was provided with plane end 112 on placing the face, compare with traditional circular shape syringe needle formula filter, this syringe needle formula filter can not take place to rotate when placing, fixed effect is better more convenient, and fix the sealed rubber shirt rim 122 that sets up in the outside of rubber sleeve 121, when being connected this syringe needle formula filter and syringe that syringe needle tube diameter is greater than rubber sleeve 121 diameter, can insert the syringe needle intraductal with rubber sleeve 121, seal through sealed rubber shirt rim 122, when being connected this syringe needle formula filter and syringe that syringe needle tube diameter is less than rubber sleeve 121 diameter, connect rubber sleeve 121 suit on the syringe needle tube, facilitate the use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a syringe needle formula filter, includes filter unit (1), and filter unit (1) is provided with housing (11) and installs at housing (11) upper end and with sleeve pipe spare (12) of housing (11) intercommunication, at the fixed drain pipe (13) that set up of lower extreme of housing (11), and at the inside fixed mounting filter membrane (14) of housing (11), its characterized in that: the inside of the housing (11) is also provided with an anti-impact buffer unit (2), the anti-impact buffer unit (2) comprises a fixed frame (21) fixedly connected to the inner wall of the housing (11) and a buffer guide (22) connected to the fixed frame (21), the anti-impact buffer unit (2) is fixedly arranged above the filter membrane (14), and raw liquid flowing into the housing (11) through the sleeve pipe fitting (12) is dispersed and flows into the filter membrane (14) after impact buffering is discharged through the anti-impact buffer unit (2);

the filter membrane (14) comprises a surface connection groove (141) arranged on the outer surface of the filter membrane (14) and a main connection component (142) arranged inside the surface connection groove (141), the main connection component (142) comprises a main connection box (1421) arranged inside the surface connection groove (141), a side groove (1422) arranged on one side of the main connection box (1421), a clamping plate (1423) arranged on the outer surface of the side groove (1422), a friction block (1424) arranged on the outer surface of the clamping plate (1423) and a rubber sleeve disk (1425) arranged at the bottom of the main connection box (1421), a mounting sleeve (1426) is arranged inside the main connection box (1421) in a penetrating mode, a power switch (1427) is arranged on the upper surface of the mounting sleeve (1426), the power switch (1427) is electrically connected with a battery arranged inside the mounting sleeve (1426), and a side plate (1428) is arranged on the outer surface of the mounting sleeve (1426);

one end of the installation sleeve (1426) is connected with the rubber sleeve disk (1425), a barrel groove (14261) is formed in the outer surface of the installation sleeve (1426), an electromagnet (14262) and a branch spring (14263) are arranged in the barrel groove (14261), one end of the branch spring (14263) is connected with the side plate (1428), and the electromagnet (14262) is magnetically connected with the side plate (1428);

the fixed frame piece (21) is a frame ring A (211) fixedly connected to the inner wall of the housing (11), the cross section shape of the frame ring A (211) is the same as that of the housing (11), and the buffer guide piece (22) is provided with a support frame rod A (221) fixedly welded to the inner wall of the frame ring A (211) and a guide dispersion tube seat (222) fixedly connected to the support frame rod A (221);

the flow guide dispersion tube seat (222) comprises a tube body (2221) and a flow guide seat (2222) fixedly connected to the lower end of the tube body (2221), and a rubber gasket (2223) is fixedly arranged at the upper end of the tube body (2221);

the lower end of the pipe body (2221) is provided with a liquid storage bucket bottom (22211), and the bottom of the liquid storage bucket bottom (22211) is provided with a communication pore canal (22212);

a liquid storage cavity (22221) is formed in the middle of the flow guide seat (2222), a liquid spraying hole (22222) is formed in the side face of the flow guide seat (2222), and the liquid spraying hole (22222) is communicated with the liquid storage cavity (22221);

the fixed frame piece (21) comprises a frame ring B (201) fixedly connected to the inner wall of the housing (11) and a dispersion guide cover (202) fixedly arranged on the inner wall of the frame ring B (201);

the dispersing guide cover (202) is of a conical structure, a through hole (2021) is formed in the middle of the dispersing guide cover (202), a guide channel (2022) is formed in the upper end face of the dispersing guide cover (202), and a water dripping hole (2023) is formed in the guide channel (2022);

the buffering guide piece (22) comprises a fixed frame seat (203) fixedly arranged on the inner wall of the frame ring B (201) and a reset plug head (204) arranged on the upper end surface of the fixed frame seat (203);

the fixed frame base (203) comprises a support frame rod B (2031) connected to the inner wall of the frame ring B (201) and a round base plate (2032) fixedly connected to the other end of the support frame rod B (2031);

the reset plug head (204) is provided with a reset spring (2041) and a hemispherical block (2042) fixedly arranged at the upper end of the reset spring (2041), and the lower end of the reset spring (2041) is fixedly connected to the upper end face of the round seat plate (2032).

2. A needle filter as defined in claim 1, wherein: the cover shell (11) is of a circular structure, the upper end face of the cover shell (11) is provided with a convex cambered surface top (111), and one side of the cover shell (11) is provided with a plane end (112).

3. A needle filter as defined in claim 1, wherein: the sleeve member (12) comprises a rubber sleeve (121) and a sealing rubber skirt (122) fixedly mounted on the outer side of the rubber sleeve (121).