Filter installation and replacement methods

Abstract

This invention relates to the field of medical device technology, and more particularly to a filter installation device and replacement method. The device includes a housing, a pressing structure, and a detection structure. The housing is used to position the filter. The pressing structure is disposed within a cavity formed by the housing and includes a pressing component and a power supply unit. The pressing component has a pressing connector, which is correspondingly arranged with the filter interface. The power supply unit is driven by the pressing component and can drive the pressing connector to insert or release from the filter interface. The power supply unit is electrically connected to the detection structure and can selectively drive the pressing connector to insert into the filter interface based on the detection result of the detection structure. Compared with the prior art, the filter installation device provided in this embodiment can automatically press or release the filter by moving the pressing component through the power supply unit, thus simplifying operation and achieving convenient installation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a filter installation device and replacement method. Background Technology

[0002] Hemodialysis machines require filters, especially microparticle filters that filter microparticles from the dialysate. These filters require interface connections and clamping devices for operation. Existing microparticle filters typically have multiple inlets and outlets (three or four inlets / outlets) to achieve their filtration function, with the inlets and outlets facing radially outwards. During use, the filter's interfaces must first be connected and tightened to the corresponding clamping devices on the dialysis machine. Therefore, a clamping device is generally needed to connect and tighten the filter's interfaces.

[0003] Existing dialysis machines typically require clamping devices at both the upper and lower interfaces of the filter, corresponding to the upper and lower interfaces respectively. These devices usually have two control handles. Each handle must be operated separately when clamping the connection points, which is inconvenient. This filter installation device aims to solve these technical problems.

[0004] Therefore, there is an urgent need for a filter installation device and replacement method to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a filter installation device and replacement method that can automatically press-fit filters, thus achieving convenient press-fitting.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A filter mounting device for press-fitting a filter, the filter having an interface, including:

[0008] Housing for positioning the filter;

[0009] The press-fit structure is disposed in the cavity formed by the housing, and includes a press-fit component and a power supply unit. The press-fit component has a press-fit connector, and the press-fit connector is configured to correspond one-to-one with the interface of the filter. The power supply unit is drivenly connected to the press-fit component, and the power supply unit can drive the press-fit connector to insert into or disengage from the interface of the filter.

[0010] The detection structure is electrically connected to the power supply unit, which can drive the press-fit connector to be inserted into the filter interface based on the detection result of the detection structure.

[0011] As a preferred technical solution for the filter installation device, when all the connectors of the filter are located on the same side of the filter, the housing has a slot, and the two ends of the press-fitting member are respectively provided with press-fitting connectors. The press-fitting member is arranged opposite to the filter, and the press-fitting member is connected to the power supply unit to be pushed or pulled.

[0012] As a preferred technical solution for the filter installation device, the press-fit structure further includes a lead screw and a nut. The nut is fixedly installed in the receiving groove of the press-fit component. The lead screw is threadedly connected to the nut. One end of the lead screw is connected to the power supply unit, and the other end of the lead screw passes through the nut and is rotatably connected to the housing.

[0013] As a preferred technical solution for the filter installation device, the detection structure is at least partially disposed in the slot, the two slots are disposed opposite to each other at both ends of the housing, and the slots extend along the length direction of the housing;

[0014] And / or, the detection structure includes a contact sensor, the detection structure is disposed at the bottom of the slot, and the detection structure generates a detection signal when squeezed by the interface;

[0015] And / or, the detection structure includes a photoelectric sensor, wherein the receiving end and the transmitting end of the photoelectric sensor are respectively disposed on two opposite sidewalls of the slot.

[0016] As a preferred technical solution for the filter installation device, the detection structure includes a contact sensor or a photoelectric sensor; the detection structure is capable of detecting that the filter is placed in place.

[0017] As a preferred technical solution for a filter installation device, the length of the lead screw extending out of the press-fitting component is less than or equal to 1.5 times the stroke of the press-fitting component.

[0018] As a preferred technical solution for the filter installation device, it also includes a guide structure, which is fixedly connected to the housing, and the guiding direction of the guide structure is in the same direction as the moving direction of the press-fit component.

[0019] As a preferred technical solution for the filter installation device, when the interfaces of the filter are located at the top and bottom of the filter respectively, the housing has two spaced and oppositely arranged slots, the press-fitting component includes a driving part and a working part, the press-fitting connector is disposed in the working part, the working part is perpendicular to the driving part, and the interfaces of the filter are respectively inserted into the slots to be connected with the press-fitting connector.

[0020] As a preferred technical solution for the filter installation device, the press-fit structure further includes a drive gear, which is connected to the power supply unit. The drive unit is provided with a driving part on both sides of the drive gear. The driving part is provided with a plurality of equally spaced transmission teeth from top to bottom on the side facing the drive gear. The drive gear meshes with the transmission teeth for the linear movement of the driving part.

[0021] As a preferred technical solution for the filter installation device, the inner wall of the cavity of the housing is provided with a guide structure, the guide structure has a guide groove, and the driving part is partially disposed in the guide groove and can move linearly within the guide groove;

[0022] And / or, a guide structure is provided in the cavity of the housing, the guide structure includes a guide pin, two oppositely arranged inner sidewalls of the housing are provided with limit grooves, the drive part is provided with a guide hole, the guide pin passes through the guide hole and both ends of the guide pin are respectively provided in the limit groove.

[0023] As a preferred technical solution for a filter installation device, the detection structure includes a contact sensor, the housing has two spaced and oppositely arranged slots, the detection structure is disposed at the end of the slots, and the detection structure generates a signal by squeezing the side wall of the interface;

[0024] And / or, the detection structure includes a contact sensor or a photoelectric sensor; the detection structure is capable of detecting that the filter is in place;

[0025] And / or, the detection structure includes a photoelectric sensor, the housing includes a housing body and two protrusions, the two protrusions are spaced apart and oppositely disposed on one side of the housing body, each of the protrusions is provided with a slot, the protrusions and the housing body form a mounting groove for accommodating the filter or two oppositely disposed sidewalls of the slot, the receiving end and the transmitting end are opposite and spaced apart, the filter is positioned and installed in the housing, and the filter blocks the signal light emitted by the transmitting end.

[0026] The present invention also provides a filter replacement method, applied to the filter installation device described in any of the above embodiments, comprising the following steps:

[0027] After receiving confirmation of filter replacement, the purging procedure is initiated.

[0028] The power supply unit is controlled to move the press-fit component a preset distance away from the filter interface;

[0029] After the new filter is positioned on the housing or after a first preset time has elapsed, the power supply unit activates to move the pressing component a preset distance in the opposite direction to press the filter firmly.

[0030] As a preferred technical solution for filter replacement, the first preset time ranges from 1s to 30s.

[0031] As a preferred technical solution for filter replacement, the first preset time ranges from 1s to 15s.

[0032] As a preferred technical solution for filter replacement, if the working torque of the power supply unit exceeds the safe torque during the filter pressing process, the power supply unit will rotate in the opposite direction to drive the pressing component back to the initial position. After the pressing component returns to the initial position, the power supply unit will stop working and remind the user to check whether the interface and the pressing joint are aligned.

[0033] As a preferred technical solution for filter replacement, the operation interface pops up a reminder window to remind the user to check whether the interface and the clamping connector are aligned. After the user clicks to confirm, the reminder window closes. After the reminder window closes, an inquiry window pops up to ask whether to re-tighten. If the user clicks to confirm, the inquiry window closes and drives the power supply unit to rotate and re-tighten the filter.

[0034] And / or, a reminder window pops up on the operation interface to remind the user that the clamping connector is not aligned. After the user clicks to confirm or waits for the second preset time, the power supply unit starts working.

[0035] And / or, when the press-fit component moves a preset distance away from the filter's interface, a prompt is made to remove the filter.

[0036] Beneficial effects of this invention:

[0037] The power supply unit can work according to the detection results of the detection structure to confirm whether it can drive the pressing component to move, so as to realize the purpose of inserting or removing the pressing connector into the filter interface. Compared with the prior art, the filter installation device provided in this embodiment can drive the pressing component to move through the power supply unit to realize the purpose of automatically pressing or releasing the filter. This makes the operation simple and achieves the purpose of convenient installation. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0039] Figure 1 The connector provided for the prior art is in the radial filter;

[0040] Figure 2 A connector for an axial filter provided by existing technology;

[0041] Figure 3 This is an exploded view of the filter installation device provided in Embodiment 1 of the present invention (the detection structure is a contact sensor).

[0042] Figure 4 This is a cross-sectional view of the filter installation device provided in Embodiment 1 of the present invention (the detection structure is a contact sensor).

[0043] Figure 5 A schematic diagram of the housing structure provided in an embodiment of the present invention (the detection structure is a photoelectric sensor).

[0044] Figure 6 This is an exploded view of the filter installation device provided in Embodiment 1 of the present invention (the detection structure is a photoelectric sensor).

[0045] Figure 7 This is a first cross-sectional view of the filter installation device provided in Embodiment 1 of the present invention (the detection structure is a photoelectric sensor).

[0046] Figure 8 This is a second cross-sectional view of the filter installation device provided in Embodiment 1 of the present invention (the detection structure is a photoelectric sensor).

[0047] Figure 9 This is an exploded view of the filter installation device provided in Embodiment 2 of the present invention (the detection structure is a photoelectric sensor).

[0048] Figure 10 This is a first cross-sectional view of the filter installation device provided in Embodiment 2 of the present invention (the detection structure is a photoelectric sensor).

[0049] Figure 11 This is a second cross-sectional view of the filter installation device provided in Embodiment 2 of the present invention (the detection structure is a photoelectric sensor).

[0050] Figure 12 This is an exploded view of the filter installation device provided in Embodiment 2 of the present invention (the detection structure is a contact sensor).

[0051] Figure 13 This is a first cross-sectional view of the filter installation device provided in Embodiment 2 of the present invention before clamping (the detection structure is a contact sensor).

[0052] Figure 14 This is a second cross-sectional view of the filter installation device provided in Embodiment 2 of the present invention (the detection structure is a contact sensor).

[0053] Figure 15This is a third cross-sectional view of the filter installation device provided in Embodiment 2 of the present invention (the detection structure is a contact sensor).

[0054] In the picture:

[0055] 1. Housing; 11. Slot; 111. Slot bottom; 112. Slot edge; 12. Mounting plate; 13. Mounting slot; 2. Press-fit structure; 21. Press-fit component; 211. First drive unit; 2111. First drive plate; 2112. Second drive plate; 2113. Third drive plate; 212. Second drive unit; 2121. Fourth drive plate; 213. First working part; 214. Second working part; 22. Power supply unit; 23. Lead screw; 24. Nut; 25. Drive gear; 26. Bushing; 201. Press-fit joint; 202. Transmission gear; 203. Receiving slot; 3. Guide structure; 31. Guide shaft; 32. Guide bushing; 33. Guide shaft fixing plate; 4. Detection structure; 41. Transmitter end; 42. Receiver end; 5. Fixing plate;

[0056] 10. Filter; 101. Interface. Detailed Implementation

[0057] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0058] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0061] This invention provides a filter installation device for press-fitting filters. This filter installation device can achieve automatic press-fitting of filters, saving press-fitting time and achieving the purpose of press-fitting without manual control.

[0062] like Figure 1 and Figure 2 As shown, in the prior art, the filter 10 has an interface 101, which includes an inlet and an outlet. Liquid enters through the inlet, is filtered, and then flows out from the outlet. The structure of the filter mounting device varies depending on the location of the interface 101. Existing filters 10 are divided into two types, such as... Figure 1 As shown, one type is a filter 10 with the interface 101 arranged radially outward, that is, the interface 101 is located on the outer peripheral sidewall of the filter 10, and the filter 10 has interfaces 101 at both the upper and lower parts, thus distinguishing the inlet and outlet of the filter 10. Figure 2 As shown, another type has an interface 101 provided in the axial direction of the filter 10. Specifically, the interface 101 is provided on the top and bottom surfaces of the filter 10 to distinguish the inlet and outlet of the filter 10. The top surface of this type of filter 10 has two interfaces 101, and the central axis of the two interfaces 101 is parallel to the central axis of the filter 10.

[0063] Example 1

[0064] like Figures 3 to 8As shown, the filter 10 has an axial interface 101, meaning that interfaces 101 are provided on the top and bottom surfaces of the filter 10. The filter installation device includes a housing 1, a pressing structure 2, and a detection structure 4. The housing 1 is used to position the filter 10, achieving the purpose of pre-installing the filter 10. The pressing structure 2 is disposed within the cavity formed by the housing 1. The pressing structure 2 includes a pressing component 21 and a power supply unit 22. The pressing component 21 has a pressing connector 201, which corresponds one-to-one with the interfaces 101 of the filter 10. The power supply unit 22 is connected to the pressing component 21 and can drive the pressing connector 201 to insert or remove it from the interfaces 101 of the filter 10, thereby achieving the purpose of pressing or removing the filter 10. The detection structure 4 and the power supply unit 22 are both electrically connected to the detection structure 4. The power supply unit 22 can selectively drive the pressing connector 201 to insert into the interfaces 101 of the filter 10 according to the detection results of the detection structure 4.

[0065] Optionally, the housing 1 is provided with a slot 11, into which the interface 101 of the filter 10 can be inserted for pre-installation, thus achieving the positioning of the interface 101 of the filter 10. The slot 11 is a T-shaped slot. Two slots 11 are arranged opposite and parallel at both ends of the housing 1, and the extension direction of the slots 11 is laterally extended, so that each slot 11 can be installed in place with the interface 101. It should be noted that each slot 11 is provided with a limiting structure, which is a groove edge 112 or groove wall of the slot 11 or other structure that can restrict the movement of the filter 10 along the extension direction of the slot 11. The groove wall can restrict the movement position of the interface 101 of the filter 10, and the groove wall can also be provided with a detection structure 4, which confirms that the press-fit connector 201 is installed in place by pressing the interface 101. The interface 101 is provided with a locking platform, and the locking platform and the slot 11 can restrict the radial back-and-forth movement of the filter 10.

[0066] The housing 1 includes a main body and two protrusions. The two protrusions are spaced apart and opposite to each other on one side of the main body. Each protrusion is provided with a slot 11. The protrusions and the main body form a mounting groove 13 for accommodating the filter 10. The mounting groove 13 can reduce the space occupied by the filter 10 and also provide a certain degree of protection for the filter 10. In addition, the filter 10 looks more aesthetically pleasing after it is installed with the housing 1.

[0067] In this embodiment, the power supply unit 22 can work according to the detection result of the detection structure 4 to confirm whether it can drive the pressing component 21 to move, so as to realize the purpose of inserting the pressing connector 201 into the interface 101 of the filter 10. Compared with the prior art, the filter installation device provided in this embodiment can drive the pressing component 21 to move through the power supply unit 22 to realize the purpose of automatically pressing or releasing the filter 10. This makes the operation simple and achieves the purpose of convenient installation.

[0068] The test result showed that when the filter 10 was installed in the housing 1, the power supply unit 22 drove the press-fit connector 201 to be inserted into the interface 101 of the filter 10.

[0069] In this embodiment, see details. Figure 3 and Figure 6 The housing 1 has two spaced and oppositely arranged slots 11. The press-fit component 21 includes a driving part and a working part. The press-fit connector 201 is disposed in the working part, which is perpendicular to the driving part. The interfaces 101 of the filter 10 are respectively inserted into the slots 11 to connect with the press-fit connector 201. The working part and the interfaces 101 are arranged facing each other, thus achieving the purpose of the press-fit connector 201 and the interfaces 101 being aligned.

[0070] Both the drive section and the working section are plate-shaped structures. For ease of description, they are combined with... Figures 3 to 7 As shown, in this embodiment, the driving unit includes a first driving unit 211 and a second driving unit 212, and the working unit includes a first working unit 213 and a second working unit 214. The first driving unit 211 and the second driving unit 212 are arranged vertically. The first driving unit 211 is fixedly connected to the first working unit 213, and the second driving unit 212 is fixedly connected to the second working unit 214. The first driving unit 211 includes a first driving plate 2111, a second driving plate 2112, and a third driving plate 2113 connected sequentially from bottom to top. The two ends of the second driving plate 2112 are fixedly connected to the first driving plate 2111 and the third driving plate 2113, respectively. The second driving plate 2112 is arranged at an angle to the first driving plate 2111 and the third driving plate 2113, respectively. The first driving plate 2111 and the second driving plate 2113 are arranged in parallel. Because the filter 10 has two interfaces 101 at its top, the actual radial length of the top increases. Therefore, the distance between the end of the second drive plate 2112 connected to the first drive plate 2111 and the filter 10 is h1, and the distance between the other end of the second drive plate 2112 connected to the third drive plate 2113 is h2, where h1 < h2. The second drive section 212 has a flat plate structure and includes a fourth drive plate 2121. The structure of the second drive section 212 differs from that of the first drive section 211.

[0071] When the filter 10 has two interfaces at both the top and bottom, the second drive unit 212 can be configured with the same structure as the first drive unit 211.

[0072] In some embodiments, the press-fit structure 2 further includes a drive gear 25, which is connected to the power supply unit 22. Drive units are respectively provided on both sides of the drive gear 25; that is, a first drive unit 211 and a second drive unit 212 are respectively provided on both sides of the drive gear 25. Multiple equally spaced transmission teeth 202 are provided from top to bottom on the side of the first drive unit 211 and the second drive unit 212 facing the drive gear 25. The drive gear 25 meshes with the transmission teeth 202 to drive the drive units to move linearly. In other words, multiple equally spaced transmission teeth 202 are provided on the side of the first drive plate 2111 and the fourth drive plate 2121 facing the drive gear 25, thus achieving the purpose of meshing the first drive plate 2111 and the fourth drive plate 2121 with the drive gear 25. Rotation of the drive gear 25 can drive the first drive plate 2111 and the fourth drive plate 2121 to move linearly.

[0073] Since both the first driving part 211 and the second driving part 212 are plate-shaped structures, if there is no limiting mechanism during movement, the first driving part 211 and the second driving part 212 will tilt, and the transmission gear 202 and the driving gear 25 will not mesh properly. Therefore, in some embodiments, such as Figure 8 As shown, the inner wall of the cavity of the housing 1 is provided with a guide structure 3, which has a guide groove. The drive unit is partially disposed in the guide groove and can move linearly within the guide groove. Specifically, the guide structure 3 is a guide block, which is provided with a guide groove. The guide block is fixed to two opposing inner sidewalls of the housing 1. Since guide grooves are provided on both sides of the drive unit, at least part of both sides of the drive unit are placed in the guide grooves. Under the restriction of the guide block, the drive unit can only move upward or downward, and cannot tilt relative to the housing 1. The transmission gear 202 and the drive gear 25 cannot mesh, thus ensuring stable movement of the drive unit and sealing after the interface 101 is connected to the press-fit connector 201. Alternatively, guide grooves can be provided on both sides of the drive unit, and guide rails can be provided on the inner wall of the housing corresponding to the guide grooves, allowing the guide grooves to move up and down within the guide rails.

[0074] Of course, in other embodiments, a guide structure 3 is fixedly provided on the housing 1. The guide structure 3 includes a guide pin, and the drive unit is provided with a guide hole, that is, an elongated hole extending vertically. The pin cooperates with the hole wall, which enables the pin to be limited to move along the direction of the elongated hole. This ensures that the drive unit moves linearly, thus ensuring stable movement of the drive unit and sealing after the interface 101 is connected to the press-fit connector 201.

[0075] The detection structure 4 includes a contact sensor or a photoelectric sensor; the detection structure 4 is capable of detecting that the filter 10 is in place. Further, the contact sensor is a pressure sensor or a microswitch; the photoelectric sensor is a photoelectric switch.

[0076] Optionally, a contact sensor can be installed at any position of the housing 1 facing the filter 10, as long as the filter 10 can provide pressure to the detection head of the contact sensor when it is inserted into the set position of the slot 11, and the contact sensor can detect that the filter 10 has been installed in the set position.

[0077] Furthermore, the detection end of the contact sensor is located at the end of the slot 11. Since a limiting structure is provided at the end of the slot, which is the wall of the slot 11, the limiting structure can limit the insertion position of the interface 101 of the filter 10. When the interface 101 of the filter 10 is inserted into the slot 11 of the housing 1 and inserted into the set position, that is, when it contacts the limited position of the interface of the filter 10 with the limiting structure at the end of the slot 11, the side wall of the interface 101 of the filter 10 can squeeze the detection end of the contact sensor.

[0078] like Figure 3 and Figure 4 As shown, the detection head of the detection structure 4 passes through the side wall of the slot 11 and is placed inside the slot 11. After the interface 101 of the filter 10 is inserted into the slot 11 of the housing 1, the detection structure 4 (such as a pressure sensor or contact switch) will generate an electrical signal when squeezed, which can confirm that the interface 101 of the filter 10 has been inserted into the slot 11, which facilitates subsequent operations.

[0079] Of course, in some other embodiments, such as Figures 5 to 7 As shown, the detection structure 4 includes a photoelectric sensor. The housing 1 includes a housing body and two protrusions. The two protrusions are spaced apart and opposite to each other on one side of the housing body. Each protrusion is provided with a slot 11. The protrusions and the housing body form a mounting groove 13 for accommodating the filter 10. The mounting groove 13 is U-shaped. The mounting groove 13 can reduce the space occupied by the filter 10. A mounting plate 12 is provided on the housing 1, specifically at the bottom of the mounting groove 13, between the receiver 42 and the transmitter 41. One of them is located on the mounting plate 12, and the other is located on the wall of the mounting groove 13. The receiver 42 and the transmitter 41 are opposite to each other and spaced apart. When the interface 101 is inserted into the slot 11, the interface 101 can block the light path between the receiver 42 and the transmitter 41, and the receiver 42 cannot detect the light signal detected by the transmitter 41.

[0080] Of course, in some other embodiments, the detection structure 4 includes a photoelectric sensor, and the housing 1 has a mounting groove 13 to accommodate the filter 10, which reduces the space occupied by the filter 10. Since the interface 101 is radially arranged, the receiving end 42 and the transmitting end 41 of the photoelectric sensor are disposed on two opposite groove walls of the slot 11. This achieves that the receiving end 42 and the transmitting end 41 are opposite and spaced apart, and the signal emitted by the transmitting end 41 can be received by the receiving end 42. When the interface 101 of the filter 10 is inserted into the slot 11, the receiving end 42 and the transmitting end 41 are blocked by the interface 101, and the receiving end 42 cannot receive the signal from the transmitting end 41. At this time, it can be considered that the filter 10 is installed in place. The system controller receives the signal from the detection structure 4 and starts the power supply unit 22. For example, the photoelectric sensor is a photoelectric switch.

[0081] In this embodiment, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control each component to achieve its function.

[0082] The power supply unit 22 determines, based on the detection results of the detection structure 4, whether to drive the pressing component 21 to press the interface 101.

[0083] In this embodiment, the power supply unit 22 includes a motor. The motor is connected to the drive gear 25, so that the rotation of the motor's output shaft can drive the drive gear 25 to rotate, thereby achieving the purpose of pressing the press-fit component 21 against the interface 101.

[0084] To fix the power supply unit 22, in this embodiment, the press-fit structure 2 further includes a fixing plate 5, which is fixedly connected to the inner wall of the housing 1. The power supply unit 22 is fixedly connected to the fixing plate 5, and the output end of the power supply unit 22 passes through the fixing plate 5 to drive the press-fit component 21 to move. The fixing plate 5 is located in the middle of the housing 1, which allows the press-fit connector 201 to be evenly connected to the interface 101.

[0085] Correspondingly, in some other embodiments, the power supply unit 22 may include a bidirectional cylinder, which can drive the first working part 213 and the second working part 214 to work simultaneously, so as to achieve the purpose of simultaneously pressing each port 101 of the filter 10. The structure of the bidirectional cylinder is prior art, so it will not be described in detail.

[0086] A sealing gasket is provided inside the interface 101, and the press-fit connector 201 contacts the sealing gasket to achieve the purpose of sealing and pressing the interface 101 and the press-fit connector 201 tightly. Both the press-fit connector 201 and the interface 101 are hollow structures to facilitate the flow of liquid.

[0087] Example 2

[0088] like Figures 9 to 15 As shown, the filter 10 has a radial interface 101, that is, the filter 10 has interfaces 101 at both the upper and lower ends. The press-fitting structure 2 is disposed in the cavity formed by the housing 1. The press-fitting structure 2 includes a press-fitting component 21 and a power supply unit 22. The press-fitting component 21 has a press-fitting connector 201, which is arranged one-to-one with the interface 101 of the filter 10. The power supply unit 22 is connected to the press-fitting component 21. The power supply unit 22 can drive the press-fitting connector 201 to insert or remove it from the interface 101 of the filter 10, thereby achieving the purpose of pressing or removing the filter 10. The detection structure 4 and the power supply unit 22 are both electrically connected to the detection structure 4. The power supply unit 22 can drive the press-fitting connector 201 to insert into the interface 101 of the filter 10 according to the detection result of the detection structure 4.

[0089] Optionally, the housing 1 is provided with a slot 11, and the interface 101 of the filter 10 can be inserted into the slot 11 to achieve the purpose of pre-installation, thus achieving the purpose of positioning the interface 101 of the filter 10.

[0090] In this embodiment, the power supply unit 22 can work according to the detection result of the detection structure 4 to confirm whether it can drive the pressing component 21 to move, so as to realize the purpose of inserting the pressing connector 201 into the interface 101 of the filter 10. Compared with the prior art, the filter installation device provided in this embodiment can drive the pressing component 21 to move through the power supply unit 22 to realize the purpose of automatically pressing or releasing the filter 10. This makes the operation simple and achieves the purpose of convenient installation.

[0091] The test result showed that when the filter 10 was installed in the housing 1, the power supply unit 22 drove the press-fit connector 201 to be inserted into the interface 101 of the filter 10.

[0092] Optionally, such as Figure 14 and Figure 15As shown, the housing 1 is provided with slots 11. Two slots 11 are spaced apart and opposite to each other at both ends of the housing 1, and the two slots 11 extend along the length direction of the housing 1. The interface 101 of the filter 10 can be inserted into the slot 11 to achieve pre-installation, thus achieving the purpose of positioning the interface 101 of the filter 10. The slots 11 are T-shaped slots. The two slots 11 are opposite to each other and parallel to each other at both ends of the housing 1, and the extension direction of the slots 11 is vertical, that is, the slots 11 extend along the length direction of the housing 1. This allows each slot 11 to be installed in place with the interface 101. It should be noted that the slot 11 at the bottom is provided with a limiting structure. For example, the limiting structure is the bottom 111 of the slot 11, or the outwardly protruding edge 112 of the slot, or the slot wall, or other structures that can restrict the movement of the filter 10 along the extension direction of the slot 11. Of course, it is also understood that the limiting structure may be provided only in the upper card slot 11, or both the upper and lower card slots 11 may be provided with limiting structures. In this embodiment, the limiting structure is preferably provided in the lower card slot 11.

[0093] The interface 101 is provided with a clamping platform. When the pressing component 21 presses the pressing connector 201 to the interface 101 of the filter 10, the clamping platform and the clamping groove 11 can restrict the radial back-and-forth movement of the filter 10.

[0094] In this embodiment, press-fitting connectors 201 are respectively provided at both ends of the press-fitting component 21. The press-fitting component 21 is disposed opposite to the filter 10, and the press-fitting component 21 is connected to the power supply unit 22 to be pushed or pulled. That is, the press-fitting connectors 201 are disposed towards the filter 10, so that the press-fitting connectors 201 can be connected to the interface 101 of the filter 10 after the press-fitting component 21 moves.

[0095] In this embodiment, combined with Figure 9 and Figure 12 As shown, the press-fit structure 2 also includes a lead screw 23 and a nut 24. The nut 24 is fixedly disposed in the receiving groove 203 of the press-fit component 21. The lead screw 23 is threadedly connected to the nut 24. One end of the lead screw 23 is connected to the power supply unit 22, and the other end of the lead screw 23 passes through the nut 24 and is rotatably connected to the housing 1. Specifically, a bushing 26 is fixedly disposed on the inner side wall of the housing 1. The other end of the lead screw 23 passes through the nut 24 and extends into the bushing 26 to achieve a rotatable connection with the bushing 26. The power supply unit 22 drives the lead screw 23 to rotate, and the nut 24 moves linearly relative to the lead screw 23. In this way, the nut 24 can drive the press-fit component 21 to move linearly. The press-fit connector 201 provided on the press-fit component 21 can press-fit the interface 101 or be separated from the interface 101.

[0096] Furthermore, the press-fit structure 2 also includes a fixing plate 5, which is fixedly connected to the inner wall of the housing 1. A power supply unit 22 is fixedly connected to the fixing plate 5, and the output end of the power supply unit 22 passes through the fixing plate 5 to drive the press-fit component 21 to move. The fixing plate 5 facilitates the fixing of the power supply unit 22 and provides support for it. In this embodiment, the fixing plate 5 is positioned slightly above the center of the housing 1, allowing for uniform connection between the press-fit connector 201 and the interface 101. When the number of interfaces 101 provided above and below the filter 10 is the same, the fixing plate 5 can also be positioned in the center of the housing 1.

[0097] The press-fit component 21 may tilt during movement. To ensure that each press-fit joint 201 connects to the interface 101 simultaneously and that the connection is sealed, the filter installation device further includes a guide structure 3. There can be multiple guide structures 3, the specific number of which is limited according to actual needs; in this embodiment, there is no special limitation. Figure 9 and Figure 12 As shown, the guide structure 3 includes a guide shaft 31, a guide shaft sleeve 32, and a guide shaft fixing plate 33. The guide shaft fixing plate 33 is located on the side of the press-fit component 21 away from the filter 10. The guide shaft fixing plate 33 is fixedly connected to the housing 1. One end of the guide shaft 31 is fixedly connected to the guide shaft fixing plate 33, and the other end of the guide shaft 31 passes through the press-fit component 21 and connects to the inner wall of the housing 1. A guide shaft sleeve 32 is provided between the guide shaft 31 and the press-fit component 21. The axial direction of the guide shaft 31 is in the same direction as the movement direction of the press-fit component 21. The cooperation of the guide shaft 31 and the guide shaft sleeve 32 can prevent the press-fit component 21 from tipping over, and the press-fit component 21 can move stably.

[0098] It should be noted that the length of the lead screw 23 extending out of the press-fit component 21 should not exceed 1.5 times the stroke of the press-fit component 21. This ensures the accuracy of the lead screw 23's movement and makes the structure more compact. The guide shaft 31 of the press-fit component 21 must meet the coaxiality requirement of the connection between the nut 24 and the lead screw 23 during movement to prevent jamming.

[0099] Optionally, the detection structure 4 includes a contact sensor or a photoelectric sensor; the detection structure 4 is capable of detecting that the filter 10 is in place.

[0100] Furthermore, the groove wall or bottom 111 of the housing 1 is provided with a detection structure 4, such as... Figures 12 to 15 As shown, the detection structure 4 includes a contact sensor or a photoelectric sensor. The detection structure 4 is specifically disposed at the bottom 111 of the slot 11. After the interface 101 of the filter 10 is inserted into the slot 11 and installed in the designated position, the detection structure 4 is triggered, thus obtaining a signal that the interface 101 is in place. For example, the contact sensor is a pressure sensor or a microswitch, and the photoelectric sensor is a photoelectric switch.

[0101] When the detection structure 4 includes a photoelectric sensor, such as Figure 9 and Figure 10 As shown, part of the detection structure 4 passes through the interface 101 of the filter 10 and is placed in the space formed by the interface 101. The receiving end 42 and the transmitting end 41 of the photoelectric sensor are arranged opposite each other on the two side walls of the slot 11. The interface 101 of the filter 10 is inserted into the slot 11 to block the light path. In this way, the system controller receives the signal from the detection structure 4 and starts the power supply unit 22.

[0102] When the detection structure 4 includes a contact sensor, the sensor probe passes through the side wall of the slot 11 and is placed in the space formed by the slot 11. After the interface 101 enters the slot 11, the side wall of the interface 101 presses against the sensor probe, so that the sensor obtains a signal that the interface 101 is installed in place to determine that the filter 10 is installed in place.

[0103] In this embodiment, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control each component to achieve its function.

[0104] A sealing gasket is provided inside the interface 101, and the press-fit connector 201 contacts the sealing gasket to achieve the purpose of sealing and pressing the interface 101 and the press-fit connector 201 tightly. Both the press-fit connector 201 and the interface 101 are hollow structures to facilitate the flow of liquid.

[0105] Example 3

[0106] This invention also provides a filter replacement method, applied to the filter installation device provided in Embodiment 1 or Embodiment 2.

[0107] The filter replacement method mainly includes the following steps:

[0108] S101. After receiving the filter replacement confirmation instruction, start the purging procedure;

[0109] When filter 10 needs to be replaced, the controller will activate the alarm to issue a warning. The alarm can be one or both of the following: a sound alarm and a light alarm. It can also be prompted through a human-machine interface (i.e., a display screen). The user confirms whether filter 10 needs to be replaced. If filter 10 needs to be replaced, the user enters a confirmation command. After receiving the confirmation command, the controller will initiate a purging action to empty the liquid in filter 10 and prevent leakage during the replacement process.

[0110] S102, Control the power supply unit 22 to move the press-fit component 21 a preset distance away from the interface 101 of the filter 10;

[0111] Since filters 10 are all industrial products manufactured by the same company, filters of the same model require the same moving distance for the pressing component 21. Therefore, moving the pressing component 21 a preset distance is sufficient to separate the interface 101 from the pressing connector 201. The preset distance is set according to actual needs.

[0112] S103. After the detection structure 4 detects that the new filter is installed and positioned on the housing 1 or after waiting for a first preset time, the power supply unit 22 is activated to move the pressing component 21 in the opposite direction by a preset distance to press the filter 10.

[0113] The photoelectric sensor is highly sensitive, and there is a possibility that it may be detected before the interface and press-fit connector 201 are properly installed. Therefore, in this embodiment, after controlling the power supply unit 22 to move the press-fit component 21 a preset distance, a first preset time is waited. Then, the power supply unit 22 moves the press-fit component 21 in the opposite direction a preset distance to press the filter 10 tightly. The first preset time ranges from 1s to 30s. More preferably, the first preset time ranges from 1s to 15s. Specifically, the first preset time can be selected as 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, or 15s.

[0114] Moving the component 21 in the opposite direction by a preset distance will press the interface 101 tightly. This completes the replacement of the filter 10.

[0115] Furthermore, when the press-fit component 21 moves a preset distance away from the interface 101 of the filter 10, a prompt will appear to indicate that the filter 10 should be removed, thus preventing the user from forgetting to remove the filter 10. Specifically, the prompt to remove the filter 10 can be made through a pop-up window on the operation interface, or by lighting up a light or making an sound.

[0116] In actual use, the interface 101 of the filter 10 and the press-fit connector 201 may not align, which could cause the power supply unit 22 to operate. If the interface 101 is not aligned, the protruding edge of the interface 101 of the filter 10 will block the movement of the press-fit connector 201. In this case, the power supply unit 22 will be obstructed when it rotates to press, and the torque of the power supply unit 22 will increase sharply. Therefore, in this embodiment, if the operating torque of the power supply unit 22 exceeds the safe torque during the pressing process of the filter 10, the power supply unit 22 will rotate in the opposite direction to drive the press-fit component 21 back to its initial position. After the press-fit component 21 returns to its initial position, the power supply unit 22 will stop working and remind the user to check whether the interface 101 and the press-fit connector 201 are aligned. This ensures that the interface 101 and the press-fit connector 201 are connected and prevents leakage at the connection between the interface 101 and the press-fit connector 201 when the filter 10 is working.

[0117] The user can be reminded to check whether interface 101 and press-fit connector 201 are aligned by sound, light, or a pop-up window in the operation interface.

[0118] Specifically, after the power supply unit 22 drives the press-fit component 21 back to its initial position, a reminder window pops up on the operation interface to remind the user to check whether the interface 101 and the press-fit connector 201 are aligned. The reminder window closes after the user clicks "confirm." This facilitates subsequent operations for the user. The pop-up reminder on the operation interface can directly remind the user, preventing the user from missing the reminder in time.

[0119] After the user checks, the user operates the power supply unit 22 to re-tighten the clamping component 21. For example, after the reminder window is closed, a prompt window pops up to ask if the user wants to re-tighten. If the user clicks "confirm," the prompt window closes and the power supply unit rotates to re-tighten the filter. This prevents the user from forgetting to operate the filter due to other unforeseen circumstances after closing the reminder window.

[0120] Of course, in some other embodiments, the operation interface may pop up a reminder window to remind the user that the interface 101 and the press-fit connector 201 are not aligned. After the user clicks to confirm or waits for a second preset time, the power supply unit 22 will operate. The purpose of waiting for the second preset time is to provide time for the user to adjust the position of the filter 10, thus preventing the power supply unit 22 from operating before the user has adjusted it. This ensures that the filter 10 is installed in place and can be pressed tightly against the press-fit component 21. The second preset time ranges from 1s to 30s. More preferably, the second preset time ranges from 1s to 15s. Specifically, the second preset time can be selected as 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, or 15s.

[0121] Specifically, the filter replacement method includes the following steps:

[0122] S201. Remind the user to replace filter 10;

[0123] S202. Upon receiving user confirmation, initiate the evacuation procedure to drain the liquid from filter 10.

[0124] S203, control the power supply unit 22 to move the clamping plate a preset distance, so that the clamping part interface 101 loosens the filter 10 interface 101;

[0125] S204. Prompt the user to remove filter 10;

[0126] S205. Confirm that the new filter is installed in place, and start the reverse movement of the preset distance to press the filter 10 interface 101.

[0127] Once the new filter is installed correctly, it is determined through detection structure 4, which improves the automation performance of the device.

[0128] When the power supply unit 22 is a motor, the system controls the motor to rotate a corresponding number of revolutions, causing the press-fit connector 201 to reach the set position. After the motor stops working, the controller prompts the user on the interface according to the set program that the filter 10 has been installed and the next operation can be performed. The motor can send a stop signal to the controller or not (for example, the controller sets a number of steps to stop the motor, and the motor stops working after reaching the number of steps) or send a stop signal through a separate motor controller.

[0129] S206. Record the usage time (i.e., replacement time) of filter 10 and restart a new replacement cycle.

[0130] Since the method is applied to the filter installation device described above, the filter replacement method of this embodiment of the invention has all the advantages and beneficial effects of the above embodiments, which will not be repeated here.

[0131] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A filter mounting device for press-fitting a filter (10), the filter (10) having an interface (101), characterized in that, include: Housing (1) for positioning the filter (10); The press-fit structure (2) is disposed in the cavity formed by the housing (1) and includes a press-fit component (21) and a power supply unit (22). The press-fit component (21) has a press-fit connector (201). The press-fit connector (201) is configured to correspond one-to-one with the interface (101) of the filter (10). The power supply unit (22) is connected to the press-fit component (21) in a transmission manner. The power supply unit (22) can drive the press-fit connector (201) to reciprocate in a straight line to insert or remove from the interface (101) of the filter (10). The detection structure (4) can detect that the filter (10) is in place; The power supply unit (22) is electrically connected to the detection structure (4). The power supply unit (22) can drive the press-fit connector (201) to move in a straight line and insert it into the interface (101) of the filter (10) according to the detection result of the detection structure (4). When all the interfaces (101) of the filter (10) are located on the same side of the filter (10), the housing (1) has a slot (11), and the two ends of the press-fitting component (21) are respectively provided with press-fitting connectors (201). The press-fitting component (21) is arranged opposite to the filter (10), and the press-fitting component (21) is connected to the power supply unit (22) to be pushed or pulled. The detection structure (4) is at least partially disposed in the slot (11), the two slots (11) are disposed opposite to each other at both ends of the housing (1), and the slots (11) extend along the length direction of the housing (1); And / or, the detection structure (4) includes a contact sensor, the detection structure (4) is disposed at the bottom (111) of the slot (11), and the detection structure (4) generates a detection signal when squeezed by the interface (101); And / or, the detection structure (4) includes a photoelectric sensor, and the receiving end (42) and the transmitting end (41) of the photoelectric sensor are respectively disposed on two opposite sidewalls of the slot (11).

2. The filter installation device according to claim 1, characterized in that, The press-fit structure (2) also includes a lead screw (23) and a nut (24). The nut (24) is fixedly installed in the receiving groove (203) of the press-fit component (21). The lead screw (23) is threadedly connected to the nut (24). One end of the lead screw (23) is connected to the power supply unit (22), and the other end of the lead screw (23) passes through the nut (24) and is rotatably connected to the housing (1).

3. The filter installation device according to claim 1, characterized in that, It also includes a guide structure (3), which is fixedly connected to the housing (1), and the guiding direction of the guide structure (3) is in the same direction as the moving direction of the press-fitting component (21).

4. The filter installation device according to claim 1, characterized in that, When the interfaces (101) of the filter (10) are located at the top and bottom of the filter (10) respectively, the housing (1) has two spaced and oppositely arranged slots (11), the press-fitting component (21) includes a driving part and a working part, the press-fitting connector (201) is disposed in the working part, the working part is perpendicular to the driving part, and the interfaces (101) of the filter (10) are respectively inserted into the slots (11) to be connected with the press-fitting connector (201).

5. The filter installation device according to claim 4, characterized in that, The press-fit structure (2) also includes a drive gear (25), which is connected to the power supply unit (22). The drive part is provided on both sides of the drive gear (25). The drive part has a plurality of equally spaced transmission teeth (202) arranged from top to bottom on the side facing the drive gear (25). The drive gear (25) meshes with the transmission teeth (202) to drive the drive part to move linearly.

6. The filter installation device according to claim 5, characterized in that, The inner wall of the cavity of the housing (1) is provided with a guide structure (3), the guide structure (3) has a guide groove, and the driving part is partially disposed in the guide groove and can move linearly in the guide groove; And / or, a guide structure (3) is provided in the cavity of the housing (1), the guide structure (3) includes a guide pin, the two inner sidewalls of the housing (1) are provided with limiting grooves, the drive part is provided with a guide hole, the guide pin passes through the guide hole and the two ends of the guide pin are respectively provided in the limiting groove.

7. The filter installation device according to any one of claims 4-6, characterized in that, The detection structure (4) includes a contact sensor, the detection structure (4) is disposed at the end of the slot (11), and the detection structure (4) generates a signal by squeezing the side wall of the interface (101); And / or, the detection structure (4) includes a contact sensor or a photoelectric sensor; the detection structure (4) is capable of detecting that the filter (10) is in place; And / or, the detection structure (4) includes a photoelectric sensor, the housing (1) includes a housing body and two protrusions, the two protrusions are spaced apart and oppositely disposed on one side of the housing body, each of the protrusions is provided with a slot (11), the protrusions and the housing body form a mounting groove (13) for accommodating the filter (10), the receiving end (42) and the transmitting end (41) of the photoelectric sensor are respectively disposed on the groove wall of the mounting groove or on the two oppositely disposed side walls of the slot (11), the receiving end (42) and the transmitting end (41) are opposite to each other and spaced apart, after the filter (10) is positioned and installed in the housing (1), the filter (10) blocks the signal light emitted by the transmitting end (41).

8. A filter replacement method, characterized in that, The filter mounting apparatus applied to any one of claims 1-7 comprises the following steps: After receiving confirmation of filter replacement, the purging procedure is initiated. The power supply unit (22) is controlled to move the press-fit component (21) a preset distance away from the interface (101) of the filter (10); After the new filter (10) is installed and positioned on the housing (1) or after waiting for a first preset time, the power supply unit (22) is activated to move the press-fitting component (21) in the reverse direction by a preset distance to press the filter (10) tightly.

9. The filter replacement method according to claim 8, characterized in that, The first preset time ranges from 1s to 30s.

10. The filter replacement method according to claim 9, characterized in that, The first preset time ranges from 1s to 15s.

11. The filter replacement method according to claim 8, characterized in that, If the working torque of the power supply unit (22) exceeds the safe torque during the pressing process of the filter (10), the power supply unit (22) will rotate in the opposite direction to drive the pressing part (21) back to the initial position. After the pressing part (21) returns to the initial position, the power supply unit (22) will stop working and remind the user to check whether the interface (101) and the pressing connector (201) are aligned.

12. The filter replacement method according to claim 8 or 11, characterized in that, The operation interface pops up a reminder window to remind the user to check whether the interface (101) and the press fitting connector (201) are aligned. After the user clicks to confirm, the reminder window closes. After the reminder window closes, an inquiry window pops up to ask whether to re-tighten. If the user clicks to confirm, the inquiry window closes and drives the power supply unit to rotate and re-tighten the filter (10). And / or, the operation interface pops up a reminder window to remind the user that the interface (101) and the press-fit connector (201) are not aligned. After the user clicks to confirm or waits for the second preset time, the power supply unit (22) starts working. And / or, prompting to remove the filter (10) after the press-fit (21) moves a preset distance away from the interface (101) of the filter (10).

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