Filter booster and filter device

Abstract

The application relates to the technical field of filters, in particular to a filter booster and a filter device. A support has a containing cavity and an opening which are in communication with each other. A thrust column assembly is movably arranged in the containing cavity, and the thrust column assembly is used for applying a thrust to a syringe. The booster handle comprises a force applying piece and a boosting piece which are connected with each other, at least part of the boosting piece is located in the containing cavity, the force applying piece is located outside the containing cavity, the booster handle has a rotating shaft which is rotatably arranged on the support and located between the force applying piece and the boosting piece. Elastic pieces are respectively in abutment with the thrust column assembly and the booster handle. The booster handle is rotatably arranged on the support through the rotating shaft, the booster handle forms a lever, under the action of the force applying piece of an operator, the force applying piece rotates around the rotating shaft, thereby driving the boosting piece to move in the containing cavity, and then the boosting piece can push the elastic pieces to be compressed, thereby driving the thrust column assembly to move towards the syringe, and the operator can easily apply force.

Description

Technical Field

[0001] This application relates to the field of filter technology, and in particular to a filter booster and a filter device. Background Technology

[0002] In field water sampling and filtration operations, conventional filtration methods are mainly divided into two categories: one is filtration performed in a laboratory relying on electricity, and the other is on-site filtration using a syringe combined with a filter membrane (also known as a needle filter). The former requires a continuous power supply, has high equipment requirements, and is inconvenient to operate; the latter has the advantage of being easier to operate in the field compared to the former.

[0003] In related technologies, using syringes for filtration presents problems such as difficulty in applying force and low filtration efficiency. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a filter booster and a filter device that can alleviate the problems of difficulty in applying force and low filtration efficiency during the filtration process.

[0005] A filter booster according to a first aspect embodiment of this application is used for filtering a syringe, the syringe including a syringe barrel and a thrust rod disposed within the syringe barrel, the filter booster comprising: The support has interconnected receiving cavities and openings, and a portion of the structure of the thrust rod is capable of extending into the receiving cavity from the opening; A thrust column assembly is movably disposed within the receiving cavity, the thrust column assembly being used to apply thrust to the syringe; A booster handle includes a force-applying member and a booster member connected to each other, at least a portion of the booster member being located within the receiving cavity, the force-applying member being located outside the receiving cavity, and the booster handle having a pivot shaft rotatably mounted to the bracket, the pivot shaft being located between the force-applying member and the booster member; An elastic element, one end of which abuts against the thrust column assembly, and the other end of which abuts against the booster handle.

[0006] The filter booster according to the embodiments of this application has at least the following beneficial effects: In the embodiment of this application, the push handle includes a force-applying component and a pusher component connected to each other. The push handle is rotatably mounted on the bracket via a pivot, forming a lever. The pusher component abuts against an elastic component. When the operator applies force to the force-applying component, the force-applying component rotates around the pivot, thereby driving the pusher component to move within the receiving cavity. The pusher component then compresses the elastic component, causing the push column assembly to move towards the syringe. The push column applies a force to the syringe to achieve the filtration action. The operator can utilize their arm and grip strength to generate a push force on the syringe. The filter pusher of this application facilitates the operator's application of force, simplifying the filtration action. The operator's application of force is relatively simple, and it can increase filtration efficiency to a certain extent.

[0007] According to some embodiments of this application, the thrust column assembly includes a thrust column and a thrust plate. The thrust plate is connected to the end of the thrust column and projected along the length direction of the thrust column. The projected area of ​​the thrust plate is larger than the projected area of ​​the thrust column. The thrust plate is used to contact the syringe to apply a thrust to the syringe.

[0008] According to some embodiments of this application, the thrust column assembly includes a thrust column, the elastic element is a spring, the length direction of the spring is arranged parallel to the length direction of the thrust column, and the spring is sleeved on the thrust column.

[0009] According to some embodiments of this application, along the length direction of the booster, the booster has a first end point opposite to the rotating shaft, and along the length direction of the force-applying member, the force-applying member has a second end point opposite to the rotating shaft, wherein the distance between the first end point and the rotating shaft is less than or equal to the distance between the second end point and the rotating shaft.

[0010] According to some embodiments of this application, the filter booster further includes a grip connected to the bracket, the grip being located on the side of the booster handle opposite to the opening.

[0011] According to some embodiments of this application, both the gripping member and the force-applying member are located at the end of the receiving cavity opposite to the opening.

[0012] According to some embodiments of this application, along the direction of the force-applying member toward the receiving cavity, the angle formed between the force-applying member and the booster member is greater than 90° and less than 180°.

[0013] According to some embodiments of this application, the thrust column assembly includes a thrust column that passes through the bracket and protrudes from the bracket along the direction of the receiving cavity away from the opening.

[0014] According to some embodiments of this application, the filter booster further includes a thrust clamp mounted on the bracket, the thrust clamp being used to clamp the thrust column to fix the thrust column relative to the bracket.

[0015] This application also provides a filtration device, comprising: The filter booster described in any of the above items; A syringe, mounted on the filter booster, is capable of partially extending into the receiving cavity from the opening.

[0016] Additional aspects and advantages of this 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 this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a simplified structural diagram of a filtering device in one embodiment of this application.

[0018] Figure label: 100, Support; 100a, Receiving cavity; 100b, Opening; 200, Thrust column assembly; 210, Thrust column; 210a, Bend; 220, Thrust plate; 300, Thrust lever; 300a, Rotating shaft; 310, Force application component; 310a, Second end point; 320, Thrusting component; 320a, First end point; 400, Elastic component; 500, Grip component; 600, Thrust clamp; 700, Syringe; 710, Thrust rod; 720, Injector; 730, Needle; 740, Filter membrane. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0023] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In related technologies, to facilitate rapid filtration in the field, a syringe combined with a filter membrane is used for on-site filtration. The syringe first draws the water to be filtered into the syringe barrel, then connects the filter membrane to the needle. Filtration is achieved by applying force to the syringe plunger, forcing the water against the filter membrane. During filtration, the operator needs to continuously apply force to the syringe plunger. However, the syringe plunger has a small contact area with the operator's hand, making application difficult and prone to causing hand pain and fatigue, resulting in low filtration efficiency.

[0025] The filter booster of this application is provided with a booster handle 300, and the two ends of the elastic member 400 abut against the booster handle 300 and the thrust column assembly 200 respectively, so that the force applied by the booster handle 300 can be transmitted to the syringe 700. The operator can achieve filtration by applying force to the force application member 310 located outside the receiving cavity 100a. The operator's application of force is relatively simple and can increase the filtration efficiency to a certain extent.

[0026] This application proposes to provide a filter booster; please refer to [link / reference]. Figure 1A filter booster is used for filtering in a syringe 700, which includes a syringe barrel 730 and a thrust rod 710 disposed within the syringe barrel 730. The filter booster includes a support 100, a thrust rod assembly 200, a main thrust, and an elastic element 400. The support 100 has a reciprocating cavity 100a and an opening 100b, and a portion of the thrust rod 710 is capable of extending into the cavity 100a from the opening 100b. The thrust rod assembly 200 is movably disposed within the cavity 100a and is used to apply a thrust to the syringe 700. The booster handle 300 includes a force-applying member 310 and a booster member 320 connected to each other. At least a portion of the booster member 320 is located within the receiving cavity 100a, and the force-applying member 310 is located outside the receiving cavity 100a. The booster handle 300 has a pivot 300a, which is rotatably mounted on the bracket 100 and located between the force-applying member 310 and the booster member 320. Exemplarily, the length direction of the booster handle 300 is arranged intersecting the arrangement direction of the receiving cavity 100a and the opening 100b, and the axis of rotation of the booster handle 300 is also arranged intersecting both the length direction of the booster handle 300 and the arrangement direction of the receiving cavity 100a and the opening 100b. One end of the elastic member 400 abuts against the thrust column assembly 200, and the other end of the elastic member 400 abuts against the booster handle 300. In this embodiment, the pusher handle 300 includes a force-applying member 310 and a pusher member 320 connected to each other. The pusher handle 300 is rotatably mounted on the bracket 100 via a pivot 300a, forming a lever. The pusher member 320 abuts against the elastic member 400. When the operator applies force to the force-applying member 310, the force-applying member 310 rotates around the pivot 300a, thereby driving the pusher member 320 to move within the receiving cavity 100a. The pusher member 320 then compresses the elastic member 400, thereby driving the thrust column assembly 210 to move towards the syringe 700. The thrust column 210 applies a thrust to the syringe 700 to achieve the filtration action. The operator can utilize their arm and grip strength to generate a thrust on the syringe 700. The filter booster of this application allows for convenient force application by the operator, simplifying the filtration action. The operator's force application is relatively simple, and it can increase filtration efficiency to a certain extent.

[0027] In one embodiment, the thrust column assembly 200 includes a thrust column 210 and a thrust plate 220. The thrust plate 220 is connected to the end of the thrust column 210 and projected along the length direction of the thrust column 210. The projected area of ​​the thrust plate 220 is larger than that of the thrust column 210. The thrust plate 220 is used to contact the syringe 700 to apply a thrust to the syringe 700. Exemplarily, the arrangement direction of the opening 100b and the receiving cavity 100a is a first direction, the length direction of the thrust column 210 is arranged parallel to the first direction, and the thrust plate 220 is located on the side of the elastic member 400 opposite to the push handle 300. The thrust plate 220 can increase the contact area between the thrust column assembly 200 and the syringe 700, so that the thrust column assembly 200 can abut against the syringe 700 more stably, thereby enabling the thrust column assembly 200 to apply a thrust to the syringe 700. It is understood that this application does not limit the shape of the thrust plate 220. Projected along the first direction, the shape of the thrust plate 220 can be rectangular or circular. Figure 1 The direction indicated by the middle arrow R1.

[0028] In one embodiment, the thrust column assembly 200 includes a thrust column 210 and an elastic element 400, which is a spring. The length direction of the spring is parallel to the length direction of the thrust column 210, and the spring is sleeved on the thrust column 210. Exemplarily, the elastic element 400 is a linear spring, with one end abutting against the push handle 300 and the other end abutting against the thrust plate 220. The thrust column 210 can limit the displacement of the spring to a certain extent, thereby reducing the displacement of the spring in the receiving cavity 100a except along the compression direction. Using the spring to apply thrust to the syringe 700, the spring can act as a buffer, making the force application process more stable and gradual. Furthermore, the spring has a long service life, which can extend the maintenance cycle of the filter booster.

[0029] It is understood that other embodiments of this application are not limited to the elastic element 400 being a spring. Exemplarily, the elastic element 400 may be a silicone element or a rubber element.

[0030] In one embodiment, along the length of the booster 320, the booster 320 has a first end point 320a opposite to the rotating shaft 300a, and along the length of the force-applying member 310, the force-applying member 310 has a second end point 310a opposite to the rotating shaft 300a. The distance between the first end point 320a and the rotating shaft 300a is less than or equal to the distance between the second end point 310a and the rotating shaft 300a. The first end point 320a and the second end point 310a are the two ends of the booster handle 300, respectively. It is understood that this application does not limit the relationship between the length direction of the force-applying member 310 and the length direction of the booster 320. The length direction of the force-applying member 310 can be arranged parallel to the length direction of the booster 320, or they can be arranged intersecting each other. With a relatively large distance between the rotating shaft 300a and the second end point 310a, the booster handle 300 can roughly function as a force-saving lever, reducing the gripping force required during the filtration process when the operator holds the force-applying member 310. For example, the distance between the first endpoint 320a and the rotating shaft 300a and the distance between the second endpoint 310a and the rotating shaft 300a can be measured by a ruler under normal temperature and pressure.

[0031] It is understood that other embodiments of this application are not limited to the distance between the first endpoint 320a and the rotating shaft 300a being less than or equal to the distance between the second endpoint 310a and the rotating shaft 300a. For example, the distance between the first endpoint 320a and the rotating shaft 300a is greater than the distance between the second endpoint 310a and the rotating shaft 300a.

[0032] In one embodiment, the filter booster further includes a grip 500 connected to the support 100, located on the side of the booster handle 300 opposite to the opening 100b. Exemplarily, the grip 500 is fixedly connected to the support 100, and is located at the end of the receiving cavity 100a opposite to the opening 100b. The grip 500 allows the operator to easily apply force. When operating with one hand, the operator can hook their thumb onto the grip 500 and place their other four fingers on the force-applying member 310 to apply force, making operation more convenient. Furthermore, the operator can operate with both hands, placing their two hands on the grip 500 and the booster handle 300 respectively to apply a pushing force to the elastic member 400. The grip 500 provides an easy-to-grip portion for the operator.

[0033] In one embodiment, the gripper 500 and the force-applying member 310 are both located at the end of the receiving cavity 100a away from the opening 100b. The distance between the gripper 500 and the force-applying member 310 is relatively short, so that the operator can apply a pushing force to the elastic member 400 with one hand, making the filtering operation simpler.

[0034] It is understood that other embodiments of this application are not limited to the fact that both the gripper 500 and the force-applying member 310 are located at one end of the receiving cavity 100a away from the opening 100b. Exemplarily, the gripper 500 and the force-applying member 310 are disposed across both ends of the receiving cavity 100a along a first direction.

[0035] In one embodiment, along the direction of the force-applying member 310 toward the receiving cavity 100a, the angle formed between the force-applying member 310 and the pusher member 320 is greater than 90° and less than 180°. Exemplarily, the angle formed between the force-applying member 310 and the pusher member 320 is 91°, 95°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, 175°, or 179°. It is understood that the angle between the force-applying member 310 and the pusher member 320 can be obtained by measuring with a protractor under normal temperature and pressure. The angle between the force-applying member 310 and the pusher member 320 is less than 180°, thus allowing the operator to apply an upward force to the syringe 700 while applying an upward force to the force-applying member 310, with the gripping force largely driving the force-applying member 310 to rotate around the axis 300a.

[0036] In one embodiment, the thrust column assembly 200 includes a thrust column 210 that passes through and protrudes from the support 100 along the direction opposite to the opening 100b in the receiving cavity 100a. It is understood that as the thrust column 210 moves along the first direction, the length of the portion protruding from the receiving cavity 100a changes accordingly, gradually increasing as the thrust column 210 moves along the opening 100b toward the receiving cavity 100a. An operator can drive the thrust column 210 along the alignment direction of the receiving cavity 100a and the opening 100b by holding the portion of the thrust column 210 protruding from the receiving cavity 100a. This reduces the likelihood of the thrust column 210 wobbling within the receiving cavity 100a when the filter booster is not in operation.

[0037] In one embodiment, the thrust column 210 has a curved portion 210a, the extension direction of which is curved and projected along the arrangement direction of the receiving cavity 100a and the opening 100b. The projection area of ​​the curved portion 210a is at least partially located outside the projection area of ​​the receiving cavity 100a. The curved portion 210a can reduce the possibility of the thrust column 210 completely entering the receiving cavity 100a and can reduce the possibility of the thrust column 210 dislodging from the opening 100b.

[0038] In one embodiment, the filter booster further includes a thrust clamp 600 mounted on the support 100, the thrust clamp 600 for clamping the thrust column 210 to fix the thrust column 210 relative to the support 100. As the thrust column 210 moves along the opening 100b toward the receiving cavity 100a, the thrust column assembly 200 and the booster handle 300 can gradually compress the elastic element 400, and the thrust clamp 600 can clamp the thrust column 210, thereby fixing the thrust column 210 in a non-operating state. Exemplarily, in the non-operating state, the thrust clamp 600 can clamp the thrust column 210 to reduce the wobbling of the thrust column 210 in the receiving cavity 100a. When filtration is required, the thrust clamp 600 is pre-released to release the thrust column 210, allowing the thrust column 210 to move toward the syringe 700.

[0039] This application embodiment also provides a filtration device, which includes a filter booster and a syringe 700. The syringe 700 is mounted on the filter booster and can partially extend into the receiving cavity 100a from the opening 100b. Exemplarily, the syringe 700 is detachably mounted on the filter booster and includes a push rod 710, a syringe barrel 720, a needle 730, and a filter membrane 740. Both the needle 730 and the push rod 710 are mounted on the syringe barrel 720. The push rod 710 is movably mounted on the syringe barrel 720, allowing external water to be drawn into the syringe barrel 720 through the needle 730. The filter membrane 740 is mounted on the needle 730. The push rod assembly 200 can abut against the push rod 710, allowing the push rod 710 to move toward the needle 730, thereby squeezing the water in the syringe barrel toward the filter membrane 740 to achieve the filtration operation.

[0040] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of protection.

Claims

1. A filter booster for filtering a syringe, the syringe comprising a syringe barrel and a thrust rod disposed within the syringe barrel, characterized in that, include: The support has interconnected receiving cavities and openings, and a portion of the structure of the thrust rod is capable of extending into the receiving cavity from the opening; A thrust column assembly is movably disposed within the receiving cavity, the thrust column assembly being used to apply thrust to the syringe; A booster handle includes a force-applying member and a booster member connected to each other, at least a portion of the booster member being located within the receiving cavity, the force-applying member being located outside the receiving cavity, and the booster handle having a pivot shaft rotatably mounted to the bracket, the pivot shaft being located between the force-applying member and the booster member; An elastic element, one end of which abuts against the thrust column assembly, and the other end of which abuts against the booster handle.

2. The filter booster according to claim 1, characterized in that, The thrust column assembly includes a thrust column and a thrust plate. The thrust plate is connected to the end of the thrust column and projected along the length of the thrust column. The projected area of ​​the thrust plate is larger than the projected area of ​​the thrust column. The thrust plate is used to contact the syringe to apply a thrust to the syringe.

3. The filter booster according to claim 1, characterized in that, The thrust column assembly includes a thrust column, and the elastic element is a spring. The length direction of the spring is arranged parallel to the length direction of the thrust column, and the spring is sleeved on the thrust column.

4. The filter booster according to claim 1, characterized in that, Along the length direction of the booster, the booster has a first end point opposite to the rotating shaft, and along the length direction of the force-applying member, the force-applying member has a second end point opposite to the rotating shaft, wherein the distance between the first end point and the rotating shaft is less than or equal to the distance between the second end point and the rotating shaft.

5. The filter booster according to claim 1, characterized in that, The filter booster also includes a grip connected to the bracket, the grip being located on the side of the booster handle opposite to the opening.

6. The filter booster according to claim 5, characterized in that, Both the gripping member and the force-applying member are located at the end of the receiving cavity opposite to the opening.

7. The filter booster according to claim 1, characterized in that, Along the direction of the force-applying member toward the receiving cavity, the angle formed between the force-applying member and the booster member is greater than 90° and less than 180°.

8. The filter booster according to claim 1, characterized in that, The thrust column assembly includes a thrust column that passes through the bracket and protrudes from the bracket along the direction of the receiving cavity away from the opening.

9. The filter booster according to claim 8, characterized in that, The filter booster also includes a thrust clamp mounted on the bracket, the thrust clamp being used to clamp the thrust column to fix the thrust column relative to the bracket.

10. A filtration device, characterized in that, include: The filter booster as described in any one of claims 1 to 9; A syringe, mounted on the filter booster, is capable of partially extending into the receiving cavity from the opening.

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