TWI551337B - Solution purification filter - Google Patents

Description

Solution purification filter

The present invention relates to a filtration device, and more particularly to a solution purification filtration device.

Referring to FIG. 1, a conventional filter device 1 includes a filter 11 having an upstream end 111 and a downstream end 112, a filter member 12 disposed in the filter 11, and a filter connected thereto. The upstream end 111 of the device 11 is formed with a threaded member 13 of a thread 131 on the outer side. The filter 11 includes an upper casing 113 surrounding a first space 101, a lower casing 114 extending downward from the upper casing 113 and surrounding a second space 102, and a connecting upper casing The partition wall 115 is disposed between the first space 101 and the second space 102. The partition wall 115 is provided with a filtering hole 103. The lower housing 114 has a body portion 116 and a connecting member 117 extending outwardly from the body portion 116. The connecting member 117 surrounds a suction hole 104 communicating with the second space 102. An upper threaded portion 118 for screwing the screw member 13 is formed on the inner side of the upper casing 113, and a lower threaded portion 119 is formed on the inner side of the lower casing 114.

When the solution is filtered, the filter member 12 is first placed on the partition wall 115 of the filter 11, and the screw member 13 is connected to the upper casing 113 by the upper threaded portion 118 of the upper casing 113. Screwed and the screw A portion of 13 is located outside of the first space 101. Then, a filter cup 2 containing the sample solution is screwed to a portion of the screw member 13 outside the first space 101, and a receiving bottle 3 is screwed under the lower case 114. The threaded portion 119 is such that the receiving bottle 3 is located at the downstream end 112 of the filter 11 and communicates with the filtering hole 103. Finally, a vacuum suction device (not shown) is connected to the connecting member 117, and air is sucked from the suction hole 104 to cause a vacuum inside the receiving bottle 3, and the filter cup 2 is loaded. The sample solution is quickly filtered through the support member 12 due to the air pressure in the bottle, and then dripped into the receiving bottle 3.

However, since the receiving bottle 3 must be screwed to the downstream end 112 of the filter 11, when continuous filtration is required and the receiving bottle 3 needs to be replaced a plurality of times, the replacement receiving bottle 3 must be removed by rotation, due to disassembly And the connection is cumbersome, and it is easy to affect the filtering due to the slow replacement action. Moreover, the receiving bottle 3 must have a thread that fits the threaded portion 119 of the lower casing 114, and the dimensions of the two must be matched to each other in order to firmly and tightly connect to the filtering device 1 for vacuuming. The versatility of the filter device 1 is low, and it is not possible to apply the bottle 3 of various specifications. In addition, when the filter member 12 is replaced, the screw member 13 must be screwed and detached before being replaced, and the filter member 12 directly closes the filter hole 103, and the filter member 12 is filtered to become more When wet, it is easy to rupture due to the absence of additional support, thus affecting the efficiency and quality of filtration.

Therefore, the object of the present invention is to provide a solution which can be used with a plurality of types or specifications of the receiving bottle and which is easy to replace the filter. Filter device.

Therefore, the solution purification filter device of the present invention is used in combination with a receiving bottle, and comprises a base, a support member placed on the base, a sealing pad disposed in the base, and a mating a filter cup on the base.

The base includes a base wall having a longitudinally penetrating drip hole, a drip tube communicating with the drip hole of the base wall and extending downward from the base wall, and a peripheral wall extending from the base wall a lower extending surrounding wall, an inner ring wall extending downward from the base wall and spaced apart from the inner side of the surrounding wall, a bottom wall extending between the surrounding wall and the inner ring wall, a laterally penetrating the surrounding wall and An air suction passage of the inner ring wall and at least one magnetic member for supporting the filter cup. The inner ring wall and the base wall together surround an accommodating space, and the air suction channel communicates with the accommodating space, and has a suction inlet facing and adjacent to the drip tube, and a surrounding wall Connected to the outside of the pumping outlet. The base wall, the surrounding wall, the inner ring wall, and the bottom wall together surround an annular space, and the magnetic member is disposed in the annular space.

The support member is disposed on the base wall and blocks the drip hole, and is configured to place a filter member, and the sample solution to be filtered is filtered through the filter member. The baffle is disposed in the accommodating space and is adhered to the inner ring wall, and has a through hole for the drip tube to be inserted, and an outer extending from the perforation and the air suction channel The vent hole through which the suction inlet is connected.

The filter cup is coupled to the base wall of the base and includes a cup body having a cup end, and a magnetic joint mechanism disposed at the mouth end of the cup and capable of attracting the magnetic member of the base. When the filter needs to be replaced, As long as the magnetic engagement mechanism is separated from the magnetic member, the filter cup can be detached and the filter can be replaced.

In use, the drip tube of the base is placed in the receiving bottle, and the sealing mouth is sealed with the bottle mouth of the receiving bottle, so that the vent hole is located around the bottle mouth of the receiving bottle Within the range, the receiving bottle can be evacuated by the suction passage of the base. After the filter member is placed on the support member, the filter cup is positioned on the base with the mouth end facing the base by the attraction of the magnetic engagement mechanism and the magnetic member. The sample solution to be filtered contained in the filter cup can be purified and filtered through the filter. When the inside of the receiving bottle presents a vacuum, the sample solution to be filtered contained in the filter cup passes through the filter member due to the air pressure in the filter cup, and after filtering through the filter member, it is dripped Undertake the bottle. As long as the bottle mouth of the receiving bottle can extend the drip tube and the vent hole is located within the range surrounded by the mouth of the receiving bottle, the receiving bottle can cooperate with the solution to purify the filtering device.

The effect of the invention is that the filter cup can be easily disassembled and the filter element can be replaced by the cooperation of the magnetic member and the magnetic joint mechanism of the filter cup, and when the filter member is placed on the support member, it is not easy to be Cracked during the filtration process. When the sealing pad is sealed to the mating receiving bottle, as long as the bottle opening of the receiving bottle can extend through the drip tube of the perforating hole of the sealing pad, and the vent hole on the sealing pad is located The receiving bottle can be conveniently coupled to the solution purification filter device by the sealing pad, and the sample solution to be filtered is vacuumed through the suction channel after receiving the bottle bottle mouth. Purified filtration.

4‧‧‧Base

401‧‧‧ accommodating space

402‧‧‧Circle space

41‧‧‧ base wall

411‧‧‧ drip hole

42‧‧‧Dripper

43‧‧‧ Around the wall

44‧‧‧ inner ring wall

45‧‧‧ bottom wall

46‧‧‧Airway

461‧‧‧Exhaust inlet

462‧‧‧Exhaust gas outlet

47‧‧‧ convex ring

471‧‧‧Placement area

48‧‧‧Magnetic parts

49‧‧‧ Positioning parts

491‧‧‧Location area

5‧‧‧Support

6‧‧‧Blocking mat

61‧‧‧Perforation

62‧‧‧vents

7‧‧‧Filter Cup

71‧‧‧ cup body

72‧‧‧ cup mouth

73‧‧‧ Magnetic connection mechanism

8‧‧‧Connecting tube

91‧‧‧Under the bottle

911‧‧‧Exhaust pipe

91’‧‧‧ accepting bottles

92‧‧‧Filter

93‧‧‧ rubber stopper

Other features and advantages of the present invention will be apparent from the description of the drawings, wherein: FIG. 1 is a cross-sectional exploded view illustrating a conventional filtering device; FIG. 2 is an exploded perspective view illustrating A first embodiment of the solution purification filter device of the present invention; FIG. 3 is an exploded perspective view of FIG. 2; FIG. 4 is a cross-sectional view showing the first embodiment with a receiving bottle; FIG. Figure 6 is a schematic view showing the first embodiment with different specifications of the receiving bottle; Figure 7 is a side exploded view showing the first embodiment with a rubber stopper to fit a receiving bottle; Figure 8 is a three-dimensional An exploded view illustrating a second embodiment of the solution purification filter device of the present invention; and Figure 9 is a cross-sectional view showing the second embodiment coupled to a receiving bottle.

Referring to FIG. 2 and FIG. 3, the first embodiment of the solution purification filter device of the present invention is used in combination with a receiving bottle 91. The first embodiment includes a base 4, a support member 5 placed on the base 4, A sealing pad 6 disposed in the base 4, a filter cup 7 coupled to the base 4, and a connecting tube 8 detachably inserted into the base 4. Wherein, the sealing pad 6 is made of a material having elasticity, for example, rubber or silicone rubber can be used, but not limited to the above materials.

The base 4 includes a drip hole having a longitudinal direction a base wall 41 of the 411, a drip tube 42 communicating with the drip hole 411 of the base wall 41 and extending downward from the base wall 41, a surrounding wall 43 extending downward from the outer periphery of the base wall 41, An inner ring wall 44 extending downward from the base wall 41 and spaced apart from the inner side of the surrounding wall 43 , a bottom wall 45 that is coupled between the surrounding wall 43 and the inner ring wall 44 , and a transverse through wall 43 . And an air suction duct 46 of the inner ring wall 44, a convex ring 47 extending upward from the base wall 41 and surrounding the drip hole 411, two magnetic members 48 for supporting the filter cup 7, and a plurality of rings a positioning member 49 outside the convex ring 47. The male ring 47 and the base wall 41 together define a placement area 471 for positioning the support member 5. The inner ring wall 44 and the base wall 41 together surround an accommodating space 401, and the air suction duct 46 communicates with the accommodating space 401 and has a suction inlet 461 facing and adjacent to the drip tube 42. And an air outlet 462 located on the surrounding wall 43 and communicating with the outside. The base wall 41, the surrounding wall 43, the inner ring wall 44, and the bottom wall 45 together surround an annular space 402. The magnetic members 48 are disposed in the annular space 402.

The support member 5 is placed in the placement area 471 defined by the base wall 41 and the convex ring 47, and blocks the drip hole 411. The support member 5 is provided with a filter member 92, wherein the positioning member 49 surrounds a positioning portion 491 for the filter member 92, and the sample solution to be filtered is purified and filtered through the filter member 92. It should be particularly noted that since the filter member 92 is soft and brittle due to the infiltration of the sample solution during the filtration process, the support member 5 disposed on the base wall 41 of the base 4 can The filter member 92 is flatly attached thereto and exerts a supporting effect on the filter member 92, so that the filter member 92 is not easily infiltrated by the sample solution. The solution ruptured by passage. The filter member 92 may be selected in combination with the sample solution to be filtered, and may be, for example, a porous material for filtering impurities or a filter film capable of adsorbing a specific substance, and is not limited to the above types.

The filter cup 7 is coupled to the base wall 41 of the base 4 and includes a cup 71 having a cup end 72, and a ring is disposed at the cup end 72 and can be magnetically attracted to the base 4. The magnetic members 73 of the members 48 are attracted to each other. It should be particularly noted that the magnetic connection mechanism 73 may be a ring magnet or an element that covers a plurality of magnets with an outer casing, as long as it can be disposed at the cup end 72 and can be disposed in the annular space 402. The magnetic members 48 are attracted to each other to form an airtight state, and are not limited to the above-described form.

The sealing pad 6 is disposed in the accommodating space 401 and is adhered to the inner ring wall 44, and has a through hole 61 for the drip tube 42 to pass through, and an outer extending from the through hole 61 And a vent 62 that communicates with the suction inlet 461 of the suction passage 46. The purpose of the vent hole 62 is to extract the air in the receiving bottle 91 from the vent hole 62 via the air venting passage 46, so that the receiving bottle 91 is in a vacuum state and filtered.

Referring to FIG. 4, in use, the drip tube 42 of the base 4 is placed in the receiving bottle 91, and the sealing mouth 6 is sealed with the bottle mouth of the receiving bottle 91. The magnetic joint mechanism 73 is coupled to the base 4, whereby the filter member 92 fixed to the support member 5 is clamped and formed in an airtight state. The venting hole 62 is located within the range surrounded by the mouth of the receiving bottle 91. The receiving bottle 91 can be evacuated by the suction passage 46 of the susceptor 4 and purified and filtered. It should be noted that when the connecting pipe 8 is inserted into the air outlet 462 of the air suction duct 46, it can be conveniently evacuated. The device (not shown) is connected, and if the mating pumping device can be directly connected to the air outlet 462, the connecting tube 8 can also be detached.

Referring to FIG. 5 and in conjunction with FIG. 3, the filter cup 7 is positioned on the base 4 in the direction of the base 4 by the attraction of the magnetic engagement mechanism 73 and the magnetic members 48. When the inside of the bottle 91 is subjected to a vacuum, since the sealing pad 6 is made of a material having elasticity, the sealing pad 6 is deformed by atmospheric pressure and is in close contact with the mouth of the receiving bottle 91. The sample solution to be filtered contained in the filter cup 7 passes through the filter member 5 due to the air pressure in the filter cup 7, and is dropped on the receiving bottle 91 after the purification filtration is completed.

It is to be noted that since the filter cup 7 is connected to the susceptor 4 by magnetic attraction, it can be easily detached and connected. After the filter 92 has been subjected to multiple filtrations, it must be replaced in order to maintain the quality of the filtration. Since the filter cup 7 and the base 4 can be easily disassembled, the filter member 92 can be quickly replaced as long as the filter cup 7 magnetically connected to each other is separated from the base 4, so the first Embodiments also have the advantage of easily replacing the filter member 92.

Referring to FIG. 6, when the first embodiment is matched with a receiving bottle 91' whose bottle mouth is smaller than the receiving bottle 91 as shown in FIG. 5, as long as the bottle mouth of the receiving bottle 91' is available for the drip tube 42 is extended, and the vent hole 62 is located within a range surrounded by the mouth of the receiving bottle 91'. When the inside of the receiving bottle 91' exhibits a vacuum, the sealing pad 6 is also closely adhered to atmospheric pressure. In the mouth of the bottle 91', the receiving bottle 91' having a small bottle opening range can also be fitted to the first embodiment. So no matter what style or The size of the receiving bottle 91 can be used for the first implementation as long as the bottle mouth range can be extended for the drip tube 42 and the vent hole 62 is located within the range surrounded by the bottle opening of the receiving bottle 91. The purification filtration of the sample solution to be filtered is carried out, and the first embodiment is thus effective in improving the versatility for a plurality of receiving bottles 91.

Referring to Fig. 7, when the first embodiment is provided with a receiving bottle 91 additionally formed with a suction pipe 911 for extracting air, a rubber stopper of a size which can seal the mouth of the receiving bottle 91 can be matched. 93 use. The rubber stopper 93 is placed on the drip tube 42 of the base 4, and the rubber stopper 93 is sealed to the mouth of the receiving bottle 91, that is, the air suction pipe 911 of the receiving bottle 91 can be evacuated. When the interior of the receiving bottle 91 exhibits a vacuum, the sample solution to be filtered on the filter member 92 is subjected to purification filtration through the filter member 92 by the air pressure in the filter cup 7.

Referring to FIG. 8, a second embodiment of the solution purification filtering device of the present invention is different from the first embodiment in that the connecting tube 8 is connected to the suction channel 46 by screwing. Air outlet 462. When the connection is made by screwing, they are screwed to each other by the threads that are matched with each other. After multiple disassembly and connection, it is less likely to wear and wear with each other and cannot be tightly connected, so that the connecting tube 8 can be further durable.

As shown in FIG. 9, the second embodiment is used in conjunction with a receiving bottle 91. Since the second embodiment differs from the first embodiment only in the connection manner of the connecting tube 8, the first embodiment In addition to the advantage that the connecting tube 8 has a long service life, the second embodiment can achieve all the effects that can be achieved by the first embodiment.

In summary, the first embodiment and the second embodiment seal the mouth of the receiving bottle 91 by the sealing pad 6, as long as the bottle mouth of the receiving bottle 91 can supply the drip tube of the base 4. 42 is extended, and the vent hole 62 of the sealing pad 6 is located within the range surrounded by the mouth of the receiving bottle 91. The first embodiment and the second embodiment can be matched with the receiving bottle 91. The purification and filtration of the sample solution to be filtered effectively improves the versatility for the receiving bottle 91. The filter cup 7 is magnetically coupled to the base 4 by the magnetic engagement mechanism 73, and the filter member 92 can be conveniently replaced by applying a force to separate the filter cup 7 from the base. When the filter member 92 is placed on the support member 5, it is not easy to be broken during the filtration process, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

4‧‧‧Base

402‧‧‧Circle space

41‧‧‧ base wall

411‧‧‧ drip hole

42‧‧‧Dripper

43‧‧‧ Around the wall

46‧‧‧Airway

47‧‧‧ convex ring

471‧‧‧Placement area

48‧‧‧Magnetic parts

49‧‧‧ Positioning parts

491‧‧‧Location area

5‧‧‧Support

6‧‧‧Blocking mat

61‧‧‧Perforation

62‧‧‧vents

7‧‧‧Filter Cup

71‧‧‧ cup body

72‧‧‧ cup mouth

73‧‧‧ Magnetic connection mechanism

8‧‧‧Connecting tube

91‧‧‧Under the bottle

92‧‧‧Filter

Claims (6)

A solution purification filtering device, which is used in combination with a receiving bottle, and comprises: a base comprising a base wall having a longitudinally penetrating drip hole, a drop pipe communicating with the drip hole of the base wall, and Extending downwardly from the base wall, a surrounding wall extends downward from the outer periphery of the base wall, an inner ring wall extending downward from the base wall and spaced apart from the inner side of the surrounding wall, the base wall and the inner The annular wall collectively surrounds an accommodating space, and a bottom wall is coupled between the surrounding wall and the inner ring wall, and the base wall, the surrounding wall, the inner ring wall, and the bottom wall together form a ring shape a space, an air suction passage, transversely penetrating the surrounding wall and the inner ring wall, and communicating with the accommodating space, the air suction prop has a suction inlet facing and adjacent to the drip tube, and a venting wall located on the surrounding wall a suction outlet connected to the outside, and at least one magnetic member disposed in the annular space; a support member placed on the base wall and blocking the drip hole, and for placing a filter member; a pad disposed in the accommodating space and being adhered to the inner ring wall and having a Perforations disposed through the flow tube, and an outwardly extending integrally from the through hole and in communication with the suction inlet of the bleed passage through a gas hole; and a filter cup, coupled to the base wall of the base, and including a cup body having a cup end, and a ring disposed at the mouth end of the cup and capable of attracting magnetic attraction with the magnetic member of the base In use, the drip tube of the base is placed in the receiving bottle, and the sealing mouth is sealed at the mouth of the receiving bottle, so that the vent hole is located at the mouth of the receiving bottle Within the surrounding range, the receiving bottle can be evacuated by the suction passage of the base, and by the attraction of the magnetic coupling mechanism and the magnetic member, the filter cup faces the cup end The direction of the base is positioned on the base such that the solution contained in the filter cup can be filtered through the filter. The solution purification filter device of claim 1, further comprising a connecting pipe detachably disposed at the suction outlet of the suction passage. The solution purification filter device according to claim 2, wherein the connecting pipe is screwed to the suction outlet of the suction passage. The solution purification filter device of claim 1, wherein the base further comprises a convex ring extending upward from the base wall and surrounding the drip hole, the convex ring and the base wall jointly defining a positioning support The placement area of the piece. The solution purification filter device of claim 4, wherein the base further comprises a plurality of positioning members disposed on the outer side of the convex ring, the positioning members surrounding a positioning area for the filter member to be placed. The solution purification filter device of claim 1, wherein the baffle pad is made of a material having elasticity.