Connecting device of filter and filtering assembly

Abstract

The utility model provides a connecting device of a filter and a filtering assembly. The filter is provided with at least two connecting ports; the connecting device comprises a fixed part, a joint pipe arranged on the fixed part and a movable part arranged below the fixed part at an interval, and the movable part can move up and down relative to the fixed part; a mounting hole for mounting the joint pipe is formed in the fixing part, the joint pipe comprises a mounting section penetrating through the mounting hole, an adjusting gap is formed between the inner wall surface of the mounting hole and the outer wall surface of the mounting section, a first guide inclined surface is arranged on one of the top end of the connecting port and the joint pipe, and a second guide inclined surface is arranged on the other of the top end of the connecting port and the joint pipe. When the movable part moves upwards, the other movable part can be in contact fit with the first guide inclined face, the connector pipe is guided to move and be inserted into the deviated connecting port to form sealed connection, and the connector pipe moves in a self-adaptive mode through the combination effect of the first guide inclined face and the adjusting gap so as to be inserted into the deviated connecting port.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a connecting device of a filter and a filtering component. Background Art

[0002] Filter components are often used for refining or separating fluids such as liquids and gases. The filter that plays the main filtering role usually has multiple connection ports for connecting to external pipelines. In order to achieve the disconnection or connection between the connection port of the filter and the external pipeline, a connection device for connecting the two is generally provided between the filter and the external pipeline. The connection device of the existing filter usually includes a movable plate and a fixing. When in use, after the filter with multiple connection ports is installed on the movable plate, the connection port is aligned with the multiple joint pipes on the fixing, and then the movable plate is driven to drive the filter to move upward relative to the fixing to achieve the docking and sealing of the multiple connection ports and the multiple joint pipes, such as inserting the joint pipe into the connection port to achieve sealing.

[0003] For example, a Japanese patent with publication number JP4234938B2 discloses a connection device for a filter, which discloses a head plate and a movable workbench. The movable workbench can move up and down relative to the head plate. A plurality of connector tubes are arranged on the head plate. After the filter is installed on the movable workbench, the port tube of the filter is aligned with the connector tube in position, so that the port tubes of the filter are driven to dock and seal with each other by the up and down movement on the movable workbench.

[0004] Another example is a Chinese patent with publication number CN112619269B, which discloses a filter connection device, a filter system and an operation method thereof. The connection device includes a fixing member, a retaining member, a rotary drive member and a motion conversion mechanism. The motion conversion mechanism converts the rotary motion of the rotary drive member into the axial motion of the retaining member, driving the filter to move axially upward or downward, so that the pipe of the filter and the joints of the fixing member are detachably sealed and connected or disconnected. It can also be known that the multiple pipes of the filter are aligned with the joints of the fixing member, so that the pipes move axially upward to butt and seal with the joint pipe.

[0005] Generally, the joint pipe is tightly installed in the mounting hole and coincides with the central axis of the mounting hole. When connecting the filter to an external pipeline, the central axis of the connection port of the filter is aligned with the central axis of the mounting hole and the joint pipe therein, and then the joint pipe is inserted into the connection port to achieve a butt seal between the joint pipe and the connection port. However, the shell of the existing filter is usually an injection molded part. On the one hand, due to the influence of the injection molding process, the connection port after injection molding is easily offset due to deformation (specifically, radial displacement, rotational tilt, etc. relative to the mounting hole and the joint pipe); on the other hand, the filter housing is usually a sealing structure formed by welding an end cap with a connection port and a lower housing of the filter. During the heating and welding process, there is a certain probability that the plastic connection port may be heated and offset.

[0006] Furthermore, since the filter housing has at least two connection ports (to ensure one inlet and one outlet for the fluid), once one or more of the connection ports are offset, when the filter is assembled on the movable plate, as the filter moves upward or downward with the movable plate, the offset connection port on the top of the filter cannot be matched and aligned with the fixedly mounted joint tube on the fixing member. When the filter moves upward, the hard collision between the joint tube and the offset connection port will not only interfere with the alignment and insertion of other connection ports and the joint tube, but will also wear the joint tube and the connection port, affecting the assembly and sealing of the filter and the joint tube. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing a filter connecting device and a filter assembly.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A connection device for a filter, the filter having at least two connection ports; the connection device comprises a fixing part, a joint pipe arranged on the fixing part and a movable part arranged at intervals below the fixing part; the filter is detachably mounted on the movable part, and the movable part can move up and down relative to the fixing part; the fixing part is provided with a mounting hole for mounting the joint pipe, the joint pipe comprises a mounting section passing through the mounting hole, an adjustment gap is provided between the inner wall surface of the mounting hole and the outer wall surface of the mounting section, and the adjustment gap is used for the joint pipe to move; a first guiding inclined surface is provided at the top of the connection port and one of the joint pipe, and when the movable part moves upward, the other can contact and cooperate with the first guiding inclined surface to guide the joint pipe to move and insert into the offset connection port to form a sealed connection.

[0010] Through the above technical solution, the installation section of the joint pipe is installed on the installation hole set on the fixing part, and an adjustment gap is formed between the outer wall surface of the joint pipe and the inner wall surface of the installation hole, so that the joint pipe can move. When the filter is installed on the movable part, during the docking process of the joint pipe and the connecting port, the filter moves upward with the movable part. Through the setting of the first guide bevel, the joint pipe can be guided by the first guide bevel when it contacts the port of the connecting port, so that the joint pipe and the connecting port can move according to the position of the offset connecting port through the existence of the adjustment gap through the mutual force between them, so that the joint pipe can be smoothly inserted into the offset connecting port, and the connection can be achieved without the need for external equipment or manual assistance. The calibration of the head pipe and the connecting port, that is, the alignment of the connecting port after the movement and displacement of the joint pipe can be achieved by setting the adjustment gap. The synergistic effect of the first guide bevel and the adjustment gap can further guide the joint pipe to automatically connect with the offset connecting port during the process of inserting the joint pipe into the connecting port, so that multiple joint pipes can be simultaneously inserted into the corresponding connecting ports (offset or not) and form a sealed connection to ensure the sealing performance between the joint pipe and the connecting port, and ensure the matching installation of the filter and the joint pipe, so that the assembly and sealing of the joint pipe and the connecting port will not be affected by the displacement of the connecting port (such as radial displacement, rotational tilt, etc. relative to the central axis of the mounting hole).

[0011] Preferably, a sealing ring is provided in the connecting port; the installation section includes a first section cooperating with the connecting port and a second section cooperating with the sealing ring, and the diameter of the second section is smaller than the diameter of the first section; the second section is provided with a second guiding bevel, and when the movable part moves upward, the second guiding bevel contacts and cooperates with the outer wall of the sealing ring, guiding the movement of the joint pipe so that the second section is inserted into the inner ring of the sealing ring, radially squeezing the sealing ring to form a sealed connection.

[0012] Through the above technical solution, the first section of the installation section can cooperate with the offset connection port through the first guide bevel and be inserted into the offset connection port, thereby completing the smooth plug-in connection between the installation section and the offset connection port. At the same time, when the filter further moves upward with the movable part, the setting of the second guide bevel is conducive to guiding the second section to be inserted into the inner ring of the sealing ring. The lower end of the second section contacts and cooperates with the outer wall of the sealing ring through the second guide bevel. The sealing ring uses elasticity to force the joint pipe to further move through the existence of the adjustment gap, so that the second section is smoothly inserted into the inner ring of the sealing ring, and radial extrusion is formed on the sealing ring and the inner ring of the sealing ring is evenly extruded around the periphery, thereby ensuring the sealing effect between the second section and the sealing ring, and preventing leakage.

[0013] Preferably, the joint pipe can be moved until its central axis coincides with the offset central axis of the connecting port.

[0014] Through the above technical solution, when the central axis of the joint pipe is basically coincident with the central axis of the connecting port, the joint pipe can naturally be inserted into the offset connecting port to form a sealed connection, which is more conducive to the movable part driving the filter to move toward the joint pipe. The joint pipe can be inserted into the connecting port along the central axis, reducing the influence of interference between the joint pipe and the connecting port during the plug-in sealing process on the sealing of the two, so as to form a stable sealed connection and further increase the sealing performance between the joint pipe and the connecting port.

[0015] Preferably, when the outer wall surface of the mounting section contacts the inner wall surface of the mounting hole, the radial displacement distance between the central axis of the joint pipe and the central axis of the mounting hole is not less than the radial displacement distance between the central axis of the connecting port and the central axis of the mounting hole; and / or, the rotational inclination angle of the central axis of the joint pipe relative to the central axis of the mounting hole is not less than the rotational inclination angle of the central axis of the connecting port relative to the central axis of the mounting hole.

[0016] Through the above technical solution, when the outer wall surface of the installation section contacts the inner wall surface of the installation hole, both the radial displacement and the tilting rotation of the joint pipe are in the restricted position, and the joint pipe cannot be further radially displaced and rotated and tilted, indicating the maximum radial displacement and the maximum rotation tilt angle of the joint pipe. When the radial displacement distance between the central axis of the joint pipe and the central axis of the installation hole is not less than the radial displacement distance between the central axis of the connection port and the central axis of the installation hole, even if the connection port is radially displaced relative to the central axis of the installation hole, it can at least be aligned with the connection port by adjusting the radial displacement of the joint pipe to the restricted position, thereby facilitating the sealing connection between the installation section of the joint pipe and the connection port; and when the rotation tilt angle of the central axis of the joint pipe relative to the central axis of the installation hole is not less than the rotation tilt angle of the central axis of the connection port relative to the central axis of the installation hole, even if the connection port is rotated and tilted relative to the central axis of the installation hole, it can be adjusted by adjusting the tilt angle of the joint pipe relative to the central axis of the installation hole, such as rotating the joint pipe to align with the corresponding connection port, thereby facilitating the sealing connection between the installation section of the joint pipe and the connection port.

[0017] Preferably, the movable part includes two side plates arranged opposite to each other, and the filter is detachably installed between the two side plates; the two opposite sides of the top of the filter respectively have connecting parts that cooperate with the side plates, and there is a radial gap between the side plates and the connecting parts so that the filter can be radially displaced in a direction perpendicular to the side plates.

[0018] Through the above technical solution, there is a radial gap between the side plate and the connection part, so that the filter (connection part) installed between the two side plates can be adjusted in a direction perpendicular to the side plate (i.e., in the radial direction), thereby driving the multiple connection ports to produce radial displacement as a whole, facilitating the rough calibration of the multiple connection ports and the joint pipe, and facilitating the alignment of the multiple connection ports and the joint pipe. At the same time, the joint pipe and the connection port can also be adjusted at the same time, so that the two can be adjusted in coordination with each other. When the filter drives all the connection ports to displace radially, the central axis of the connection port can be adjusted to a position that basically coincides with the central axis of the mounting hole. At the same time, the joint pipe can also be adjusted to a position where its central axis basically coincides with the central axis of the mounting hole, thereby facilitating the alignment of the joint pipe and the connection port and forming a sealed connection, and facilitating the quick alignment and sealed connection of the joint pipe and the connection port.

[0019] Preferably, the radial distance of the radial gap is not less than the radial displacement distance from the central axis of the connecting port to the central axis of the mounting hole.

[0020] Through the above technical solution, it is ensured that the radial distance has a sufficient adjustment amount, and the radial displacement distance of multiple connection ports in the direction perpendicular to the side panel is sufficient to meet the radial displacement distance of the connection ports, so that the radial displacement of multiple connection ports in the direction perpendicular to the side panel can also play a better adjustment role.

[0021] Preferably, the side panel member includes a side panel and a support strip protruding from the inner wall surface of the side panel; the connecting portion includes an insert plate capable of being supported on the support strip, and the outer wall surface of the insert plate and the inner wall surface of the side panel are spaced apart to form the radial gap.

[0022] Preferably, the side panel member includes a side plate and a support strip protruding from the inner wall surface of the side plate; the connecting portion includes a slide groove, the slide groove is slidably connected to the support strip, and the outer wall surface of the support strip and the bottom wall of the slide groove are spaced apart to form the radial gap.

[0023] Through the above technical scheme, the support strip and the plug plate are matched with each other or the support strip and the slide groove are matched with each other. On the one hand, a radial gap can be formed to facilitate radial adjustment of the connecting part. On the other hand, it is beneficial to stably support the connecting part, so that when the side plate drives the connecting part to move axially, the stability of the connecting part can be maintained, thereby enabling the connecting port to form a stable sealed connection with the joint pipe.

[0024] Preferably, it further comprises two engaging parts, wherein one engaging part is located on the connecting part, and the other engaging part is located on the side panel, and the two engaging parts can cooperate with each other to be relatively locked or relatively unlocked.

[0025] Through the above technical solution, the two engaging parts cooperate with each other. On the one hand, it is possible to locate the position of the filter insertion, thereby facilitating the positioning of the connection port, and is more conducive to the alignment and sealing connection between the connection port of the filter and the joint pipe; on the other hand, when the two engaging parts cooperate, they can give the operator a prompt (such as a sound prompt or a tactile prompt), so that the operator can stop the operation in time, thereby avoiding excessive installation of the filter and affecting the alignment and sealing connection between the connection port and the joint pipe.

[0026] Preferably, one of the two engaging parts is configured as a slot and the other is configured as a protrusion, and the protrusion can slide into and out of the slot. When the protrusion slides into the slot, the protrusion can slide in the slot.

[0027] Through the above technical solution, when the filter is installed along the side panel, there will be a touch feeling when the protrusion slides into the slot, which reminds the operator that the filter is installed in place, thereby avoiding excessive insertion of the filter. In addition, the protrusion can slide in the slot, so that after the filter is installed in place, the filter can be fine-tuned (i.e., slightly moved along the loading and unloading direction), thereby facilitating the overall adjustment of the positions of multiple connection ports in the filter loading and unloading direction, so that the connection ports can be aligned with the joint pipe.

[0028] Preferably, a blocking portion is provided between the rear ends of the two side panels, and when the protrusion in the slot slides a predetermined distance, the blocking portion and the filter abut against each other to limit the filter from moving toward the rear end of the side panel.

[0029] Through the above technical solution, the blocking part can further block the filter from continuing to slide toward the rear end of the side panel after the filter is installed in place through the slot and the protrusion. While fine-tuning the filter along its loading and unloading direction, it further prevents the hidden danger of excessive movement of the filter.

[0030] Preferably, the fixing member includes a base plate and a mounting plate detachably fixed to the lower surface of the base plate, the mounting plate and the base plate are spaced apart, the joint pipe includes a movable flange accommodated between the mounting plate and the base plate, and the joint pipe passes through the mounting plate and the base plate.

[0031] Through the above technical solution, the joint pipe is limited on the fixing part by the flange, and the upward and downward movements of the joint pipe are restricted by the flange. The movable flange indicates that there is a gap between the flange and one of the mounting plate and the base plate, that is, the mounting plate and the base plate do not clamp the fixed flange to ensure that the joint can move.

[0032] A filter assembly comprises the above-mentioned connecting device and a filter capable of being sealed and connected to the connecting device.

[0033] Through the above technical solution, the filter and the external pipeline are connected by using the above connecting device, so that the sealing performance of the connection between the filter and the external pipeline is better, the fluid filtering effect is improved, and fluid leakage is avoided.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. Through the above technical solution, the installation section of the joint pipe is installed on the installation hole set on the fixing member, and an adjustment gap is formed between the outer wall surface of the joint pipe and the inner wall surface of the installation hole, so that the joint pipe can move. When the filter is installed on the movable member, during the docking process between the joint pipe and the connection port, the filter moves upward with the movable member. Through the setting of the first guide slope, when the joint pipe contacts the port of the connection port, it can be guided by the first guide slope, so that the joint pipe and the connection port can be moved according to the position of the offset connection port through the existence of the adjustment gap through the mutual force between them, so that the joint pipe can be smoothly inserted into the offset connection port without the need for external equipment or manual assistance. The present joint pipe and the connection port are calibrated, that is, the alignment of the connection port after the joint pipe moves and is offset can be achieved by setting the adjustment gap. The synergistic effect of the first guide bevel and the adjustment gap can further guide the joint pipe to automatically plug into the offset connection port during the process of inserting the joint pipe into the connection port, so that multiple joint pipes can be simultaneously inserted into the corresponding connection ports (offset or not) and form a sealed connection, so as to ensure the sealing performance between the joint pipe and the connection port, and ensure the matching installation of the filter and the joint pipe, so that the assembly and sealing of the joint pipe and the connection port will not be affected by the offset of the connection port (specifically, such as radial displacement, rotational tilt, etc. relative to the central axis of the mounting hole).

[0036] 2. By setting a radial gap between the side plate and the connection part, the filter (connection part) installed between the two side plates can be adjusted in a direction perpendicular to the side plate (i.e. radial direction), thereby driving the multiple connection ports to produce radial displacement as a whole, facilitating the rough calibration of the multiple connection ports and the joint pipes, and facilitating the alignment of the multiple connection ports and the joint pipes. At the same time, the joint pipe and the connection part can also be adjusted at the same time, so that the two can be adjusted in coordination with each other, facilitating the quick alignment and sealed connection of the joint pipe and the connection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model.

[0039] Figure 2 For Figure 1 A schematic structural diagram of a filter matched with the connecting device shown.

[0040] Figure 3 It is a schematic diagram of the coordination of the radial displacement deformation of the mounting section, the mounting hole and the connecting port of the first embodiment.

[0041] Figure 4 It is a schematic diagram of the coordination of the rotational tilting deformation of the mounting section, the mounting hole and the connecting port of the first embodiment.

[0042] Figure 5 for Figure 1 The provided connection device is Figure 2 Connection diagram for the filter provided.

[0043] Figure 6 for Figure 5 Enlarged view of position A in the middle.

[0044] Figure 7 for Figure 6 Schematic diagram of the structure of the connecting device.

[0045] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0046] Fig. 9 for Figure 8 Enlarged view of position B in the middle.

[0047] Fig.10 This is a schematic diagram of the structure of the third embodiment of the present invention.

[0048] Fig.11 for Fig.10 Schematic diagram of the section along the CC section plane.

[0049] Fig.12 for Fig.11 Enlarged view of position D in the middle.

[0050] Description of reference numerals:

[0051] 100. filter; 1001. connection port; 1002. connection part; 10021. plug plate; 10022. slide groove; 1. fixing part; 11. mounting hole; 12. base plate; 13. mounting plate; 14. flange; 2. joint pipe; 21. mounting section; 211. first section; 212. second section; 3. movable part; 31. side panel; 311. side panel; 312. support bar; 4. adjustment gap; 5. radial gap; 6. engaging part; 61. slot; 62. protrusion; 7. blocking part; 8. sealing ring; 91. first guide slope; 92. second guide slope. DETAILED DESCRIPTION

[0052] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Embodiment 1

[0056] See also Figures 1 to 10 The embodiment of the utility model provides a filter connection device for connecting an external pipeline and a filter 100. The connection device includes a fixing member 1, a joint pipe 2 arranged on the fixing member 1, and a movable member 3 arranged below the fixing member 1 at intervals.

[0057] Specifically, the fixing member 1 is provided with a mounting hole 11 for mounting the joint pipe 2, and the joint pipe 2 is provided with three, one for inputting fluid, another for outputting fluid, and another for exhausting. Correspondingly, the filter 100 also has three connection ports 1001, one of which is used for inputting fluid, another for outputting fluid, and another for exhausting gas. Of course, in other embodiments, only one connection port 1001 for inputting fluid and one connection port 1001 for outputting fluid may be provided; four, five or more connection ports 1001 may also be provided, which may be specifically provided according to actual use requirements. It is worth noting that the mounting hole 11, the joint pipe 2 and the connection port 1001 of the filter 100 are provided in a one-to-one correspondence.

[0058] Furthermore, the filter 100 is detachably mounted on the movable part 3, and the movable part 3 can move up and down relative to the fixed part 1, thereby driving the filter 100 close to or away from the joint pipe 2. When the movable part 3 drives the filter 100 close to the joint pipe 2, the connection port 1001 of the filter 100 and its corresponding joint pipe 2 cooperate with each other and form a sealed connection; when the movable part 3 drives the filter 100 away from the joint pipe 2, the joint pipe 2 is separated from the connection port 1001, thereby facilitating the replacement of the filter 100. The fixed part 1 and the movable part 3 can be hinged through an X frame and driven by a wrench structure (such as a lever), or the fixed part 1 and the movable part 3 can be driven close to or away from each other by a telescopic cylinder or an electric push rod. This is a structure that can be implemented in the prior art and will not be repeated.

[0059] However, the actual filter 100 is usually an injection molded part, and the connection port 1001 may be easily offset during its molding or processing (such as radial displacement, rotational tilt, etc. relative to the central axis of the mounting hole). Since the filter 100 usually has multiple connection ports 1001, multiple joint pipes 2 are also provided accordingly. For the convenience of explanation, the assembly method of the joint pipe 2 inserted into the connection port 1001 is used for explanation. When one or more of the connection ports 1001 are offset (such as radial displacement, rotational tilt relative to the central axis of the mounting hole), it is difficult for multiple joint pipes 2 to be matched and aligned with their corresponding multiple connection ports 1001 at the same time. It is often difficult for the offset connection port 1001 to allow the joint pipe 2 above it to be aligned and inserted. The upper joint pipe 2 and the offset connection port 1001 interfere with each other during insertion, affecting the assembly, which in turn makes it difficult to form a sealed assembly between the joint pipe 2 and the connection port 1001. For example, one or two connection ports 1001 are aligned and plugged in and sealed with the joint tube 2, but the remaining one or two connection ports 1001 cannot be plugged in and sealed with the joint tube 2. Even if the force is increased to insert the remaining joint tube 2 into the remaining connection port 1001, the sealing assembly of the remaining joint tube 2 and the remaining connection port 1001 will be affected.

[0060] See also Figure 3 and Figure 4 In order to enable all the joint pipes 2 to form a sealed connection with their corresponding connection ports 1001, so that the assembly and sealing of the joint pipe 2 and the connection port 1001 will basically not be affected by the displacement of the connection port 1001 (such as radial displacement, rotational tilt, etc.), in the present embodiment, the joint pipe 2 includes a mounting section 21 that passes through the mounting hole 11, and an adjustment gap 4 is provided between the inner wall surface of the mounting hole 11 and the outer wall surface of the mounting section 21; the top end of the connection port 1001 and one of the joint pipe 2 are provided with a first guide bevel 91, and when the movable part 3 moves upward, the other can contact and cooperate with the first guide bevel 91 to guide the joint pipe 2 to move and insert into the deviated connection port 1001 to form a sealed connection.

[0061] Specifically, in the present embodiment, the first guide bevel 91 is arranged at the top of the inner wall of the connection port 1001, that is, the first guide bevel 91 and the inner wall of the connection port 1001 are directly connected. When the filter 100 is installed on the movable part 3, the joint tube 2 can be adjusted according to the position of the offset connection port 1001 on the filter 100. The existence of the gap 4 allows the joint tube 2 to move relative to the offset connection port 1001. After the movement, the joint tube 2 is adaptively inserted into the connection port 1001, so that multiple joint tubes 2 can be aligned with multiple connection ports 1001 (offset or not) at the same time.

[0062] It should be noted that the fixing member 1 includes a base plate 12 and a mounting plate 13 detachably fixed to the lower surface of the base plate 12, the mounting plate 13 and the base plate 12 are spaced apart, the joint pipe 2 includes a movable flange 14 accommodated between the mounting plate 13 and the base plate 12, the mounting hole 11 is formed on the mounting plate 13, and the adjustment gap 4 is formed on the mounting plate 13, so Figure 3 and Figure 4 The fixing member 1 specifically refers to the mounting plate 13. Of course, in other embodiments, the mounting hole 11 and the adjustment gap 4 can also be formed on the base plate 12. The function of the movable flange 14 is to ensure that the joint pipe 2 can move through the adjustment gap 4, and to limit the downward movement of the joint pipe 2 to prevent the joint pipe 2 from falling, and to limit the upward movement of the joint pipe 2 so that when the joint pipe 2 and the first guide bevel 91 of the connection port 1001 are in contact and fit, when the joint pipe 2 moves upward to the flange 14 and the base plate 12 abut, the joint pipe 2 will not move upward, and the first guide bevel 91 guides the joint pipe 2 to move radially through the adjustment gap 4 and be inserted into the offset connection port 1001.

[0063] In the process of docking the joint pipe 2 with the connection port 1001, the filter 100 moves upward with the movable part 3. By setting the first guiding bevel 91 at the top of the connection port 1001, the lower end of the joint pipe 2 can be guided by the first guiding bevel 91 when it contacts the first guiding bevel 91 at the top of the connection port 1001 (i.e., the opening position), so that the joint pipe 2 and the connection port 1001 can be connected by mutual force. The first guiding bevel 91 moves upward to force the joint pipe 2 to move through the adjustment gap 4 so as to be smoothly inserted into the offset connection port 1001, without the need for external equipment or manual assistance to achieve the calibration of the joint pipe 2 and the offset connection port 1001, that is, through the coordination of the adjustment gap 4 and the first guiding bevel 91. The function is to realize automatic alignment and insertion of the joint tube 2 and the offset connection port 1001. By setting the first guide bevel 91, the joint tube 2 can be further guided to automatically insert into the offset connection port 1001 during the process of inserting the joint tube 2 into the connection port 1001, so that multiple joint tubes 2 can be respectively inserted into the corresponding connection ports 1001 (offset or not) and form a sealed connection, so as to ensure the sealing performance between the joint tube 2 and the connection port 1001, and ensure the matching installation of the filter 100 and the joint tube 2, so that the assembly and sealing of the joint tube 2 and the connection port 1001 will not be affected by the offset of the connection port 1001 (such as radial displacement, rotational tilt, etc. relative to the central axis of the mounting hole 11).

[0064] Of course, in other embodiments, the first guide bevel 91 can also be set on the outer wall of the joint pipe 2, for example, at the bottom end of the outer wall of the joint pipe 2. The first guide bevel 91 at the bottom end of the outer wall of the joint pipe 2 is in contact with the top of the offset connection port 1001. Under the interaction of forces, the joint pipe 2 is forced to move through the existence of the adjustment gap 4. The first guide bevel 91 guides the joint pipe 2 to be smoothly inserted into the offset connection port 1001.

[0065] Furthermore, the joint pipe 2 and the connection port 1001 need to be sealed after being inserted and assembled. A sealing ring 8 is provided inside the connection port 1001. When the connection port 1001 is offset, the sealing ring 8 provided therein will also be offset. In order to achieve effective sealing between the connection ports 1001 and 1001, the installation section 21 includes a first section 211 that cooperates with the connection port 1001 and a second section 212 that cooperates with the sealing ring 8, and the diameter D2 of the second section 212 is smaller than the diameter D1 of the first section 211. A second guiding bevel 92 is provided at the bottom end of the outer wall of the second section 212. The second guiding bevel 92 contacts and cooperates with the outer wall of the sealing ring 8 to guide the second section 212 to be inserted into the inner ring of the sealing ring 8, and radially squeeze the sealing ring 8 to form a sealed connection. That is, when the filter 100 moves further upward with the movable part 3, the second guiding bevel 92 on the second section 212 contacts the outer wall of the sealing ring 8. Under the interaction of forces, the joint pipe 2 is also forced to move by adjusting the existence of the gap 4, so that the second section 212 is inserted into the inner ring of the sealing ring 8. The second section 212 uniformly squeezes the inner ring of the sealing ring 8 for one circle to ensure that the sealing ring 8 can be sealed at all positions. If the second guiding bevel 92 is not provided, it is not conducive to the second section 212 to be inserted into the inner ring of the sealing ring 8, and the squeezing of the sealing ring 8 by the second section 212 is uneven.

[0066] It is worth noting that, in this embodiment, the adjustment gap 4 is arranged around the joint pipe 2, and is the area formed between the outer wall surface of the mounting section 21 of the joint pipe 2 and the inner wall surface of the mounting hole 11, wherein the mounting section 21 is an extended section of the joint pipe 2 close to the connection port 1001 and passing through the mounting hole 11, specifically including a portion that cooperates with the connection port 1001 and a portion located in the mounting hole 11. In addition, the first guide inclined surface 91 and the second guide inclined surface 92 mentioned above can be straight surfaces or curved surfaces, and can also be annular.

[0067] Furthermore, the joint pipe 2 can move until its central axis coincides with the central axis of the offset connection port 1001, which is beneficial for the movable part 3 to drive the filter 100 to move toward the joint pipe 2, so that the installation section 21 of the joint pipe 2 can be inserted into the connection port 1001 along the central axis, thereby reducing the connection resistance between the installation section 21 of the joint pipe 2 and the connection port 1001, so as to form a stable sealed connection, and further ensure the sealing performance between the joint pipe 2 and the connection port 1001.

[0068] Since the connection port 1001 may produce radial displacement and rotational tilt away from the central axis direction, there are multiple ways to adjust the installation section 21 of the joint pipe 2 relative to the connection port 1001, so that the installation section 21 of the joint pipe 2 can be better aligned with the connection port 1001.

[0069] The joint pipe 2 and the mounting hole 11 may have a tolerance that creates a gap, which is not what a person skilled in the art would like, because achieving a tight fit between the joint pipe 2 and the mounting hole 11 is conducive to fixing and installing the joint pipe 2, so that the joint pipe 2 is not prone to tilting and affecting the sealing of the sealing ring. An overly tilted joint pipe 2 causes one side of the sealing ring to be over-extended and the other side to be under-extended. In this embodiment, when the joint pipe 2 moves so that the outer wall surface of the mounting section 21 contacts the inner wall surface of the mounting hole 11, the radial displacement distance between the central axis of the joint pipe 2 and the central axis of the mounting hole 11 is not less than the radial displacement distance between the central axis of the connection port 1001 and the central axis of the mounting hole 11.

[0070] Specifically, see Figure 3 When the central axis of the connection port 1001 is deformed by radial displacement relative to the central axis of the mounting hole 11, in order to enable the joint pipe 2 to move radially to a position aligned with the connection port 1001, thereby facilitating the sealed connection between the mounting section 21 of the joint pipe 2 and the connection port 1001, when the outer wall surface of the mounting section 21 of the joint pipe 2 is adjusted to contact the inner wall surface of the mounting hole 11 (i.e., the joint pipe 2 is in the maximum displacement position of radial movement relative to the mounting hole 11), the radial displacement distance H1 between the central axis L1 of the joint pipe 2 and the central axis L2 of the mounting hole 11 is greater than the radial displacement distance H2 between the central axis L3 of the connection port 1001 and the central axis L2 of the mounting hole 11, i.e., the adjustment range of the radial displacement of the joint pipe 2 is greater than the radial deformation distance of the connection port 1001. Of course, in other embodiments, H1 may also be equal to H2.

[0071] Further, the rotational inclination angle of the central axis of the joint pipe 2 relative to the central axis of the mounting hole 11 is not less than the rotational inclination angle of the central axis of the connection port 1001 relative to the central axis of the mounting hole 11. Figure 4, when the central axis of the connection port 1001 is tilted and deformed relative to the central axis of the mounting hole 11, in order to enable the joint pipe 2 to move radially to a position aligned with the connection port 1001, thereby facilitating the sealed connection between the mounting section 21 of the joint pipe 2 and the connection port 1001, when the outer wall surface of the mounting section 21 of the joint pipe 2 is adjusted to contact the inner wall surface of the mounting hole 11 (that is, when the central axis of the joint pipe 2 is at the maximum tilt angle relative to the central axis of the mounting hole 11), the rotation tilt angle J1 of the central axis L1 of the joint pipe 2 relative to the central axis L2 of the mounting hole 11 is greater than the rotation tilt angle J2 of the central axis L3 of the connection port 1001 relative to the central axis L2 of the mounting hole 11. That is, the tilt angle adjustment range of the joint pipe 2 is greater than the tilt deformation angle of the connection port 1001. Of course, in other embodiments, J1 may also be equal to J2. It is worth noting that in other embodiments, only H1 may be not less than H2, and only J1 may be not less than J2.

[0072] See also Figure 5 and Figure 6 In this embodiment, the movable part 3 includes two side panels 31 arranged opposite to each other, and the filter 100 is detachably installed between the two side panels 31; the two opposite sides of the top of the filter 100 respectively have connecting parts 1002 that cooperate with the side panels 31, so that the filter 100 can be stably installed between the side panels 31, which makes it convenient for the movable part 3 to drive the filter 100 to approach or move away from the fixed part 1, thereby facilitating the alignment and sealing connection of the connection port 1001 and the joint pipe 2, and at the same time, it will not affect the replacement of the filter 100.

[0073] In order to enable the filter 100 (connecting portion 1002) installed between the two side plates 311 to be adjusted in a direction perpendicular to the side plate 31 (i.e. radial direction), and thus to drive the multiple connection ports 1001 to produce radial displacement as a whole, it is convenient for the rough calibration of the multiple connection ports 1001 and the joint pipe 2, and for the alignment of the multiple connection ports 1001 and the multiple joint pipes 2. At the same time, the joint pipe 2 and the connecting portion 1002 can also be adjusted at the same time, so that the two can be adjusted in coordination with each other, so that the joint pipe 2 and the connection port 1001 on the connecting portion 1002 are quickly aligned and sealed. In this embodiment, there is a radial gap 5 between the side plate 31 and the connecting portion 1002, so that the filter 100 can be radially displaced in a direction perpendicular to the side plate 31.

[0074] Furthermore, in order to enable the connecting portion 1002 to drive all the connecting ports 1001 to move radially, and thereby adjust the central axis of most of the connecting ports 1001 to roughly coincide with the central axis of their corresponding mounting holes 11, in this embodiment, the radial distance of the radial gap 5 is not less than the radial displacement distance from the central axis of the connecting port 1001 to the central axis of the mounting hole 11.

[0075] In order to facilitate the cooperation between the side panel 31 and the connecting part 1002, in the present embodiment, the side panel 31 includes a side panel 311 and a support bar 312 protruding from the inner wall surface of the side panel 311, and the support bar 312 is used to support the connecting part 1002. There are many ways for the support bar 312 to cooperate with the connecting part 1002, and a stable connection between the support bar 312 and the connecting part 1002 can be achieved.

[0076] See also Figure 6 In this embodiment, the connecting portion 1002 includes a slide groove 10022, which is slidably connected to the support bar 312, and the outer wall surface of the support bar 312 and the bottom wall of the slide groove 10022 are spaced apart to form a radial gap 5.

[0077] See also Figure 2 , Figure 5 and Figure 7 In order to facilitate the insertion of the filter 100, the operator is prompted with the insertion position, and the insertion position of the filter 100 and the connection port 1001 are positioned. In this embodiment, two engaging portions 6 are included, one of which is located on the connection portion 1002, and the other is located on the side panel 31. The two engaging portions 6 can cooperate with each other to be relatively locked or relatively unlocked. When the two engaging portions 6 cooperate, the operator can be prompted (such as a sound prompt or a tactile prompt) to facilitate the operator to stop the operation in time, thereby avoiding excessive insertion of the filter 100 and affecting the alignment connection and sealing connection between the connection port 1001 and the joint pipe 2.

[0078] Specifically, one of the two engaging parts 6 is configured as a slot 61, and the other is configured as a protrusion 62. The slot 61 is located on the connecting part 1002, and the protrusion 62 is located on the side plate 31. The protrusion 62 can slide into and out of the slot 61. Of course, in other embodiments, the slot 61 may also be located on the side plate 31, and correspondingly, the protrusion 62 is located on the connecting part 1002.

[0079] Furthermore, when the protrusion 62 slides into the slot 61, the protrusion 62 can slide in the slot 61, so that after the filter 100 is installed in place, the connection part 1002 can be fine-tuned (i.e., the filter 100 is moved along the loading and unloading direction of the filter 100), thereby facilitating the overall adjustment of the position of the connection port 1001 so that the connection port 1001 can be aligned with the joint pipe 2.

[0080] Furthermore, in order to further prevent the filter 100 from continuing to slide toward the rear end of the side panel 31 and further prevent the hidden danger of excessive movement of the filter 100, a blocking portion 7 is provided between the rear ends of the two side panels 31. When the protrusion 62 in the slot 61 slides a predetermined distance, the blocking portion 7 and the filter 100 abut against each other to limit the movement of the filter 100 toward the rear end of the side panel 31.

[0081] Embodiment 2

[0082] See also Figure 8 and Fig. 9 Based on the above-mentioned embodiment 1, the difference of this embodiment is that the connecting portion 1002 includes a plug plate 10021 that can be supported on the support bar 312, and the outer wall surface of the plug plate 10021 and the inner wall surface of the side plate 311 are spaced apart to form a radial gap 5.

[0083] Embodiment 3

[0084] See also Fig.10 and Fig.12 Based on the above-mentioned embodiment 2, this embodiment provides a filter assembly, including the above-mentioned connecting device, and a filter 100 that can be sealed and connected to the connecting device; the filter 100 and the external pipeline are connected by using the above-mentioned connecting device, so that the sealing performance of the connection between the filter 100 and the external pipeline is better, thereby improving the fluid filtering effect and avoiding fluid leakage.

[0085] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A connection device for a filter, the filter having at least two connection ports; The connecting device comprises a fixing part, a joint pipe arranged on the fixing part, and a movable part arranged below the fixing part at intervals; The filter is detachably mounted on the movable member, and the movable member can move up and down relative to the fixed member; It is characterized in that The fixing member is provided with a mounting hole for mounting the joint pipe, the joint pipe includes a mounting section penetrating the mounting hole, and an adjustment gap is provided between the inner wall surface of the mounting hole and the outer wall surface of the mounting section, and the adjustment gap is used for the joint pipe to be able to move; One of the top of the connection port and the joint pipe is provided with a first guide slope. When the movable part moves upward, the other can contact and cooperate with the first guide slope to guide the joint pipe to move and insert into the offset connection port to form a sealed connection.

2. A filter connection device according to claim 1, It is characterized in that A sealing ring is provided in the connecting port; The installation section includes a first section matched with the connection port and a second section matched with the sealing ring, and the diameter of the second section is smaller than the diameter of the first section; The second section is provided with a second guiding bevel. When the movable part moves upward, the second guiding bevel can contact and cooperate with the outer wall of the sealing ring to guide the movement of the joint pipe so that the second section is inserted into the inner ring of the sealing ring and radially squeezes the sealing ring to form a sealed connection.

3. A filter connection device according to claim 1, It is characterized in that The joint pipe can be moved until its central axis coincides with the offset central axis of the connecting port.

4. A filter connection device according to claim 1, It is characterized in that When the outer wall surface of the mounting section contacts the inner wall surface of the mounting hole; The radial displacement distance between the central axis of the joint pipe and the central axis of the mounting hole is not less than the radial displacement distance between the central axis of the connection port and the central axis of the mounting hole; and / or, The rotational inclination angle of the central axis of the joint pipe relative to the central axis of the mounting hole is not less than the rotational inclination angle of the central axis of the connection port relative to the central axis of the mounting hole.

5. A filter connection device according to any one of claims 1 to 4, It is characterized in that The movable member comprises two side plates arranged opposite to each other, and the filter is detachably installed between the two side plates; Two opposite sides of the top of the filter are respectively provided with connecting parts which cooperate with the side plate, and a radial gap is provided between the side plate and the connecting parts so that the filter can be radially displaced in a direction perpendicular to the side plate.

6. A filter connection device according to claim 5, It is characterized in that The radial distance of the radial gap is not less than the radial displacement distance from the central axis of the connecting port to the central axis of the mounting hole.

7. A filter connection device according to claim 5, It is characterized in that The side panel member comprises a side panel and a support strip protruding from the inner wall surface of the side panel; The connecting portion includes an inserting plate capable of being supported on the supporting bar, and an outer wall surface of the inserting plate and an inner wall surface of the side plate are spaced apart to form the radial gap.

8. A filter connection device according to claim 5, It is characterized in that The side panel member comprises a side panel and a support strip protruding from the inner wall surface of the side panel; The connecting portion comprises a slide groove, the slide groove is slidably connected to the support bar, and the outer wall surface of the support bar and the bottom wall of the slide groove are spaced apart to form the radial gap.

9. A filter connection device according to claim 5, It is characterized in that It also includes two clamping parts, one of which is located on the connecting part, and the other is located on the side plate, and the two clamping parts can cooperate with each other to be relatively locked or relatively unlocked.

10. A filter connection device according to claim 9, It is characterized in that One of the two engaging parts is configured as a slot and the other is configured as a protrusion. The protrusion can slide into and out of the slot. When the protrusion slides into the slot, the protrusion can slide in the slot.

11. A filter connection device according to claim 10, It is characterized in that A blocking portion is provided between the rear ends of the two side panels. When the protrusion in the slot slides a predetermined distance, the blocking portion abuts against the filter to limit the filter from moving toward the rear end of the side panel.

12. A filter connection device according to claim 1, It is characterized in that The fixing member includes a base plate and a mounting plate detachably fixed to the lower surface of the base plate, the mounting plate and the base plate are spaced apart, the joint pipe includes a movable flange accommodated between the mounting plate and the base plate, and the joint pipe passes through the mounting plate and the base plate.

13. A filter assembly, comprising the connecting device according to any one of claims 1 to 12, and a filter capable of being sealed and connected to the connecting device.

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