CN210845503U

CN210845503U - Syringe type filtering device

Info

Publication number: CN210845503U
Application number: CN201921641729.1U
Authority: CN
Inventors: 芮君君; 陆玮; 刘国英; 王录
Original assignee: Anhui Ruisiweier Technology Co Ltd
Current assignee: Anhui Ruisiweier Technology Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-26
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a syringe formula filter equipment relates to experimental tools technical field, the double-screw bolt is upright to be fixed in on the base, the test-tube rack, the liquid outlet fixed plate, handle fixed plate and push rod clamp plate by supreme cup jointing in proper order down and installing on the double-screw bolt, correspond respectively on liquid outlet fixed plate and the handle fixed plate and set up each liquid outlet fixed plate hole and each handle fixed plate hole, pin type filtration equipment installs on liquid outlet fixed plate and handle fixed plate, the push rod clamp plate compresses tightly in locating the push rod top, double-screw bolt screw-thread fit's holding down nut is located to its top. The utility model can simultaneously carry out the filtering operation of a plurality of needle type filtering devices, does not need operators to repeatedly press the push rod by hands, greatly improves the filtering efficiency and reduces the labor intensity of the operators; through the screw-thread fit of pushing down nut and double-screw bolt, realize rotating and push down the nut and then push down and move the push rod clamp plate, realize the action that each push rod pushed down, each push rod pushes down evenly, and the filtration rate is even, the filtration is stable.

Description

Syringe type filtering device

Technical Field

The utility model relates to an experimental tools technical field, concretely relates to be used for assisting carry out filterable syringe formula filter equipment of solution.

Background

Filtration of solutions is one of the most common operations in experiments, when the filtration requirements for solutions are high, membrane filtration is required. The membrane filtration is usually performed based on needle type filtration equipment, and the specific filtration mode is that the solution is firstly sucked into a needle tube of the needle type filtration equipment, then the filter membrane is installed at the position of a liquid outlet of the needle type filtration equipment in a matching way, an operator squeezes a piston push rod of an injector by hands to pressurize the solution in the needle tube, and the solution flows out after being filtered by the filter membrane. However, the liquid outlet of the needle type filtering equipment and the diameter of the filter membrane used in cooperation are small, the filtering efficiency of the filtering mode is low, an operator is required to continuously pressurize the piston rod of the syringe in the filtering process, the labor intensity of the operator is high, and the hands are easy to be damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a syringe type filtering device, which avoids the defects of the prior art.

The utility model discloses a solve technical problem and adopt following technical scheme: a syringe type filtering device is characterized in that needle type filtering equipment comprises a needle tube which is integrally in a cylindrical tubular structure, the top end of the needle tube is provided with an opening and is horizontally turned outwards to form a handle, the bottom end of the needle tube is provided with a liquid outlet, a piston is hermetically matched in the needle tube, the top of the needle tube is fixedly connected with the handle extending out of the opening at the top end of the needle tube, a stud is vertically fixed on a base, a test tube rack, a liquid outlet fixing plate, a handle fixing plate and a push rod pressing plate are sequentially sleeved on the stud from bottom to top, the liquid outlet fixing plate and the handle fixing plate are supported and fixed through fixing nuts which are respectively arranged at the bottoms of the liquid outlet fixing plate and are;

the liquid outlet fixing plate and the handle fixing plate are respectively and correspondingly provided with a liquid outlet fixing plate hole and a handle fixing plate hole, the size of the liquid outlet fixing plate hole is smaller than that of the needle tube, and the size of the handle fixing plate hole is smaller than that of the handle; filtration membrane device is installed in the liquid outlet cooperation, needle formula filtration equipment's liquid outlet and needle tubing pass corresponding a set of respectively the liquid outlet fixed orifices with the setting of handle fixed orifices, the handle lower surface with the needle tubing lower extreme face compress tightly respectively in the handle fixed plate with liquid outlet fixed plate upper surface, the push rod clamp plate compress tightly in locating the push rod top, its top is located double-screw bolt screw-thread fit's gland nut.

Furthermore, the test-tube rack is a box structure with an opening at the upper part, criss-cross parting strips are horizontally arranged at the middle part of the test-tube rack, the cavity of the box structure is divided into test-tube cavities by the parting strips, and the test tubes are respectively vertically limited in the test-tube cavities.

Furthermore, the side wall of each division bar is provided with soft bulges corresponding to the inner wall of each test tube cavity.

Furthermore, the lower surface of the push rod pressing plate is correspondingly provided with frosted surfaces corresponding to the positions of the handle fixing plate holes.

Further, the liquid outlet outside with its external dimension of needle tubing outside cooperation cup joints the stereoplasm gasket, the external dimension of stereoplasm gasket is greater than corresponding liquid outlet fixed plate hole or handle fixed plate hole.

Furthermore, the top of the pressing nut is provided with a nut handle which is placed upwards and extends and expands outwards and is of a rod-shaped structure.

Furthermore, the lower surface of the pressing nut is provided with a circular protrusion with a smooth surface, and the upper surface of the push rod pressing plate is correspondingly provided with a circular groove with a smooth surface.

The utility model provides a syringe formula filter equipment has following beneficial effect:

1. the filtering operation of a plurality of needle type filtering devices can be carried out simultaneously, the operation process that an operator presses the push rod by hands repeatedly is not needed, the filtering efficiency is greatly improved, and the labor intensity of the operator is reduced;

2. the push rod pressing plate is pressed downwards by rotating the pressing nut through the threaded fit of the pressing nut and the stud, so that the pressing action of each push rod is realized, the push rods are pressed downwards uniformly, the filtering rate is uniform, and the filtering is stable;

3. simple structure, use are convenient, and the size in liquid outlet fixed plate hole and handle fixed plate hole can correspond the setting according to the pin type filtration equipment of actual configuration, and application scope is wide, has good practicality.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a bottom view of the push rod pressing plate of the present invention;

fig. 3 is a top view of the test tube rack of the present invention;

fig. 4 is a top view of the liquid outlet fixing plate of the present invention;

fig. 5 is a schematic view of the assembly side cut-away of the push-down nut, the push rod press plate and the push rod of the present invention.

In the figure:

11. the device comprises a base, a bolt, a liquid outlet fixing plate, a handle fixing plate, a push rod pressing plate and a lower pressing nut, wherein the base is 12; 2. needle type filtering equipment, 21, a needle tube, 22, a liquid outlet, 23, a piston, 24, a push rod, 25, a handle, 26 and a filtering membrane device; 3. a test tube rack; 4. fixing a nut; 5. test tubes.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the structural relationship is as follows: the needle type filtering equipment 2 comprises a needle tube 21 which is integrally in a cylindrical tubular structure, the top end of the needle tube 21 is opened and is horizontally turned outwards to form a handle 25, the bottom end of the needle tube 21 is provided with a liquid outlet 22, a piston 23 is hermetically matched in the needle tube 21, the top of the piston 23 is fixedly connected with the handle 25 extending out of the opening at the top end of the needle tube 21, a stud 12 is vertically fixed on a base 11, a test tube rack 3, a liquid outlet fixing plate 13, a handle fixing plate 14 and a push rod pressing plate 15 are sequentially sleeved on the stud 12 from bottom to top, the liquid outlet fixing plate 13 and the handle fixing plate 14 are supported and fixed by fixing nuts 4 which are respectively arranged at the bottoms of the liquid outlet fixing;

liquid outlet fixing plate holes and handle fixing plate holes are respectively and correspondingly formed in the liquid outlet fixing plate 13 and the handle fixing plate 14, the size of each liquid outlet fixing plate hole is smaller than that of the needle tube 21, and the size of each handle fixing plate hole is smaller than that of the handle 25; filtration membrane device 26 is installed in the cooperation of liquid outlet 22, and needle filtration equipment 2's liquid outlet 22 and needle tubing 21 pass a set of liquid outlet mounting plate hole and the setting of handle mounting plate hole that correspond respectively, and handle 25 lower surface and needle tubing 21 lower extreme surface compress tightly respectively in

handle mounting plate

14 and 13 upper surfaces of liquid outlet mounting plate, and push rod clamp plate 15 compresses tightly in locating 24 tops of push rod, and stud 12 screw-thread fit's push nut 16 is located to its top.

Preferably, the test tube rack 3 is a box structure with an opening at the upper part, the height level of the middle part is provided with criss-cross parting strips, each parting strip divides the inner cavity of the box structure into each test tube cavity, and each test tube 5 is vertically limited in each test tube cavity respectively.

Preferably, each soft bulge is arranged on the side wall of each division bar corresponding to the inner wall of each test tube cavity so as to better fix each test tube 5 in each test tube cavity.

Preferably, the lower surface of the push rod pressing plate 15 is provided with a frosted surface corresponding to the position of each handle fixing plate hole, so as to increase the friction between the top of the push rod 24 and the push rod pressing plate 15, and reduce or eliminate the relative sliding between the push rod pressing plate 15 and the push rod 24 during the process of pressing down the push rod 24.

Preferably, the outer part of the liquid outlet 22 and the outer part of the needle tube 21 are matched with the outer size of the hard gasket in a sleeved mode, the outer size of the hard gasket is larger than that of a corresponding liquid outlet fixing plate hole or a corresponding handle fixing plate hole, so that the size of the liquid outlet 22 or the needle tube 21 is matched to better limit and fix the needle type filtering equipment 2, and the needle type filtering equipment 2 is placed to greatly shake in the filtering process.

Preferably, the top of the push-down nut 16 is provided with a nut handle of a rod-like structure extending upward and outward for facilitating and saving the rotation of the push-down nut 16.

Preferably, the lower surface of the pressing nut 16 is provided with a circular protrusion with a smooth surface, the upper surface of the push rod pressure plate 15 is correspondingly provided with a circular groove with a smooth surface, when the pressing nut 16 rotates, the circular protrusion and the circular groove slide relatively, and the push rod pressure plate 15 does not rotate along with the pressing nut 16.

During the specific use, place filter equipment on the desktop steadily through base 11, according to the size of needle tubing 21 of needle formula filtration equipment 2, adjust corresponding fixation nut 4 to adjust liquid outlet dead plate 13 and handle dead plate 14 to suitable height, and adjust the interval between the two to suitable interval, then fix corresponding fixation nut 4. The test tube rack 3 is fixed at a proper height below the liquid outlet fixing plate 13 through the corresponding fixing screw cap 4, and each test tube 5 is fixed in each test tube cavity respectively. The liquid outlet 22 and the needle tube 21 of each needle type filtering device 2 which extracts the solution respectively pass through the corresponding liquid outlet fixing plate hole and the corresponding handle fixing plate hole, if necessary, a gasket is used for fixing each needle type filtering device 2 stably, then each filtering film device 26 is correspondingly installed at the position of the liquid outlet 22 of each needle type filtering device 2, then the push rod pressing plate 15 is installed above the top of each push rod 24, and the push down screw cap 16 is installed above the push rod pressing plate 15 in a matching manner with the stud 12. The push rod pressing plate 15 moves downwards under the pressure of the push nut 16 by rotating the push nut 16, and meanwhile, each push rod 24 and the piston 23 connected to the bottom end of each push rod 24 are pressed downwards, so that the solution in each needle tube 21 is filtered by the filter membrane device 26 and then correspondingly flows out into each test tube 5, and meanwhile, the filtering operation of the needle type filtering equipment 2 is completed.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an injector formula filter equipment, needle formula filtration equipment (2) are syringe (21) of cylinder tubular structure including whole, syringe (21) top opening and outside level are turned over and are rolled over and constitute handle (25), and liquid outlet (22) are established to the bottom, and piston (23) sealed fit in syringe (21), its top link firmly by handle (25) that syringe (21) top opening stretches out, its characterized in that: the screw bolt (12) is vertically fixed on the base (11), the test tube rack (3), the liquid outlet fixing plate (13), the handle fixing plate (14) and the push rod pressing plate (15) are sequentially sleeved on the screw bolt (12) from bottom to top, the liquid outlet fixing plate (13) and the handle fixing plate (14) are supported and fixed by fixing screw nuts (4) which are respectively arranged at the bottoms of the liquid outlet fixing plate and are in threaded fit with the screw bolt (12), and the fixing screw nuts (4) are respectively arranged at the top and the bottom of the test tube rack (3);

the liquid outlet fixing plate (13) and the handle fixing plate (14) are respectively and correspondingly provided with a liquid outlet fixing plate hole and a handle fixing plate hole, the size of the liquid outlet fixing plate hole is smaller than that of the needle tube (21), and the size of the handle fixing plate hole is smaller than that of the handle (25); filtration membrane device (26) is installed in liquid outlet (22) cooperation, the liquid outlet (22) and needle tubing (21) of needle formula filtration equipment (2) pass a set of that corresponds respectively the liquid outlet fixed orifices with the setting of handle fixed orifices, handle (25) lower surface with needle tubing (21) lower terminal surface compress tightly respectively in handle fixed plate (14) with liquid outlet fixed plate (13) upper surface, push rod clamp plate (15) compress tightly in locating push rod (24) top, its top is located double-screw bolt (12) screw-thread fit's push nut (16).

2. A syringe-type filtration device according to claim 1, wherein: the test tube rack (3) is of a box body structure with an opening at the upper part, criss-cross partition strips are arranged at the middle height level of the test tube rack, the partition strips divide an inner cavity of the box body structure into test tube cavities, and the test tubes (5) are vertically limited in the test tube cavities respectively.

3. A syringe-type filtration device according to claim 2, wherein: the side wall of each division bar is provided with soft bulges corresponding to the inner wall of each test tube cavity.

4. A syringe-type filtration device according to claim 1, wherein: and the lower surface of the push rod pressing plate (15) is correspondingly provided with each frosted surface corresponding to the position of each handle fixing plate hole.

5. A syringe-type filtration device according to claim 1, wherein: liquid outlet (22) outside with its external dimension of needle tubing (21) outside cooperation cup joints the stereoplasm gasket, the external dimension of stereoplasm gasket is greater than corresponding liquid outlet fixed plate hole or handle fixed plate hole.

6. A syringe-type filtration device according to claim 1, wherein: the top of the pressing nut (16) is provided with a nut handle which is placed upwards and extends and expands outwards and has a rod-shaped structure.

7. A syringe-type filtration device according to claim 1, wherein: the lower surface of the pressing nut (16) is provided with a circular protrusion with a smooth surface, and the upper surface of the push rod pressing plate (15) is correspondingly provided with a circular groove with a smooth surface.