Filter adapter and filter

Abstract

The utility model discloses a filter union joint and filter thereof, and the union joint is used for connecting joint seat and filter, and it includes union joint body and at least two cylindrical stop valve, the union joint body is provided with the accommodation cavity for accommodating filter head, and the accommodation cavity axial center is provided with main channel and at least two stop valve channels with main channel each other, and main channel is used for the shunt switch of filter head to pass through, and at least two cylindrical stop valves move axially in stop valve channel and limit rotation. By providing a filter union joint with stop valve, on the one hand, the replaceability of the assembly parts of the filter and the joint seat is provided, and because the cylindrical stop valve can move axially in the union joint body, the cylindrical stop valve can be partially or entirely accommodated in the union joint body, reducing the breakage rate during transportation, on the other hand, further preventing liquid leakage during the installation of the union joint, the filter and the joint seat.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and more specifically to a filter connector and a filter. Background Technology

[0002] In existing technologies, the connection of the water system pipeline connecting the inlet water of the liquid to be filtered and the outlet water of the filtered liquid is usually fixed in the equipment setting, and a detachable filter is connected to the connection. When the filter needs to be replaced or repaired, the old filter needs to be removed and the new filter needs to be installed. The filter installation structure in the existing technology requires multiple steps for installation, and the disassembly and assembly process is cumbersome and difficult.

[0003] Taking refrigerators as an example, many refrigerator products are equipped with ice makers or external water dispensers for user convenience. These require water purification filters to supply purified water produced by the water purification filters to the ice maker for ice making or to the dispenser for use.

[0004] On the other hand, although existing technologies have valves installed on the joints of the water system pipes connecting the equipment, and the valves on the joints automatically close when the filter is removed to prevent leakage from the refrigerator's water system pipes, the liquid remaining inside the filter is prone to leakage during the disassembly process. Furthermore, the refrigerator filter installation area is relatively narrow, making it difficult to clean and maintain. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a filter connector that provides multiple safeguards against leakage during assembly and disassembly. To achieve the above objective, this utility model provides the following technical solution:

[0006] This utility model provides a filter connector for connecting a connector seat and a filter, including a connector body, which has a receiving cavity for accommodating a filter head, and the receiving cavity has at least two shut-off valve channels, with the main channel for the flow switch of the filter head to pass through.

[0007] At least two cylindrical shut-off valves are provided for fluid passages connecting the filter and the fitting seat, and at least two cylindrical shut-off valves are axially movable within the shut-off valve passages and restrict rotation.

[0008] As a further improvement of this utility model, a snap-fit ​​part is connected to the upper end of the columnar shut-off valve. This snap-fit ​​part is used to connect with the head of the filter and restricts the axial movement of the columnar shut-off valve relative to the filter.

[0009] As a further improvement of this utility model, the two columnar stop valves are respectively provided with a first inlet and a first outlet at the same horizontal level in the radial direction, and each columnar stop valve is provided with a first sealing ring at the upper and lower positions of the inlet and outlet.

[0010] As a further improvement of this utility model, the connector body is provided with a first seat and a second seat, and the guide grooves on the first seat and the second seat are interconnected. The guide groove includes at least a section that is oblique or spiral. A gap is formed between the first seat and the second seat, which is used to accommodate the snap-fit ​​part of the columnar shut-off valve.

[0011] As a further improvement of this utility model, the connector body is provided with a locking member, which is used to lock and connect with the connector seat. The locking member is provided with a linkage member that cooperates with the filter. The linkage member drives the locking structure to lock with the connector seat by converting the rotational or axial movement of the filter.

[0012] For a further improvement of this utility model, a main channel is provided at the axial center of the receiving cavity, and at least two shut-off valve channels are provided close to the main channel at the axial center. The main channel is used for the flow divider of the filter head to pass through. A locking member is provided on the connector body. The locking member is used to lock and connect with the connector seat. The locking member is provided with a linkage member that cooperates with the flow divider. The linkage member drives the locking structure to lock with the connector seat by converting the rotational movement or axial movement of the flow divider.

[0013] As a further improvement of this utility model, the locking component is a locking sleeve provided on the connector body. The lower end of the locking sleeve is provided with an opening, and the opening extends upward with an alignment groove. The alignment groove extends circumferentially with a locking groove. The locking groove is used to lock and engage with the connector seat. The locking sleeve is rotatably connected to the connector body at a limited rotation angle.

[0014] As a further improvement of this utility model, the linkage includes at least a starting position protrusion provided on the inner wall of the locking sleeve. When the filter rotates, the starting position protrusion moves synchronously with the filter and abuts against it. At least one limiting structure is provided between the locking sleeve and the coupling head body to limit the rotation angle. After the locking sleeve rotates to the limiting position relative to the coupling head body, the starting position protrusion and the filter begin to disengage from each other.

[0015] As a further improvement of this utility model, at least one limiting structure is provided between the locking sleeve and the coupling head body to limit the rotation angle. The limiting structure is one or more of the following: a limiting protrusion and a limiting protrusion cooperating, or a limiting protrusion and a limiting groove cooperating.

[0016] As a further improvement of this utility model, the connector body is provided with an installation cylinder, and the locking sleeve is rotatably positioned inside the installation cylinder. The side wall of the installation cylinder is provided with an installation hole, and a limiting block that can move axially along the installation hole is provided inside the installation hole. The locking sleeve is provided with a limiting groove that cooperates with the limiting block. When the columnar shut-off valve moves axially to the preset position, the outer wall surface of the columnar shut-off valve pushes the limiting block to move towards the locking sleeve and abuts against the limiting groove of the locking sleeve. A clearance groove is provided on the side of the columnar shut-off valve near the lower end, corresponding to the limiting block. When the columnar shut-off valve moves downward until the clearance groove passes the position of the limiting block, it reaches the preset position.

[0017] This utility model also provides a filter, which includes a bottle body, a filter element housed in the bottle body, and an end cap for sealing the bottle body. The filter is characterized by including any of the filter coupling heads described above.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] By adopting the above technical solution, this utility model has the following advantages:

[0020] By providing a filter connector with a shut-off valve to connect the filter to the fitting on the equipment, a detachable connector for the filter is provided, enabling the interchangeability of the assembly components of the filter and the fitting. In cases where the connection and installation structure is relatively easy to break, only the connector needs to be replaced for replacement, reducing the manufacturer's warranty replacement costs.

[0021] Furthermore, since the cylindrical stop valve can move axially within the connector body, it can be partially or completely contained within the connector body, reducing the breakage rate during transportation.

[0022] On the other hand, during the assembly and disassembly of the joint, filter, and connector, at least two columnar shut-off valves can seal off the outflow of liquid inside the filter, further preventing leakage and improving the user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a filter connector according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the filter joint receiving cavity structure of this utility model;

[0025] Figure 3 This is a longitudinal sectional view of the filter connector of this utility model;

[0026] Figure 4 This is a schematic diagram of the installation structure of the filter and filter joint of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the filter connector with a connecting seat of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the locking sleeve of this utility model;

[0029] Figure 7 This is a top view structural diagram of the filter connector with connecting seat of this utility model;

[0030] Figure 8 This is a schematic diagram of the installation structure between the diversion switch, locking sleeve, and connector body when the filter of this utility model is installed in place;

[0031] Figure 9 This is a schematic diagram of the installation structure between the diversion switch, locking sleeve, and connector body when the filter of this utility model is initially installed;

[0032] Figure 10 This is a schematic diagram of the installation structure of the locking sleeve of this utility model;

[0033] Figure 11 This is a schematic diagram of the structure of the filter of this utility model;

[0034] Figure 12 This is a schematic diagram of the structure of one of the connectors of this utility model.

[0035] Figure label:

[0036] 1. Connector; 11. Connector body; 111. Receiving cavity; 112. Main channel; 113. Gate valve channel; 114. Mounting cylinder; 115. Mounting hole; 116. Limiting block; 117. Mounting notch; 118. Mounting seat; 12. Columnar gate valve; 121. Snap-fit ​​part; 122. First inlet; 123. First outlet; 124. First sealing ring; 125. Clearance groove; 13. Connecting seat; 131. First seat body; 132. Second seat body; 133. Spiral groove; 134. Spacing; 14. Locking element; 141. Locking sleeve; 142. Alignment groove; 143. Locking groove; 144. Starting position protrusion; 145. Ending position protrusion; 146. Limiting groove; 147. First pin; 148. Positioning arc groove; 149. Second pin;

[0037] 2. Filter; 21. Bottle body; 22. Filter element; 23. End cap; 231. Protrusion; 232. Second inlet; 233. Second outlet; 234. Diverter switch; 235. Raised strip; 236. Second sealing ring; 237. Chuck; 238. Protrusion;

[0038] 3. Connector seat; 31. Pipeline inlet channel; 32. Pipeline outlet channel; 33. First inlet channel; 34. First outlet channel; 35. Diversion channel; 36. First valve body; 37. First shut-off valve; 371. Valve body; 372. Spring component; 38. Locking pin. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the terms "center," "horizontal," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art should understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents. Improvements made without inventive effort should be included within the protection scope of the present invention.

[0043] like Figure 11 and Figure 4As shown, the filter 2 of this utility model includes a bottle body 21, a filter element 22 housed in the bottle body 21, and an end cap 23. The end cap 23 is used to seal the bottle body 21. The filter element 22 is a hollow cylindrical shape that forms an inlet channel and an outlet channel inside the bottle body 21. Two filter element mounting seats are provided in the bottle body 21, which are arranged vertically. One filter element mounting seat extends downward with a protrusion. The protrusion has an outlet channel that communicates with the hollow filter element 22. The end cap 23 extends forward with a columnar protrusion 231. The protrusion 231 forms an inlet channel and an outlet channel that communicates with the protrusion around the protrusion. The protrusion 231 is circumferentially provided with a second inlet 232 and a second outlet 233. Preferably, a second sealing ring 236 is provided above and below the second inlet 232 and the second outlet 233.

[0044] like Figure 12 As shown, the connector 3 of this utility model is used to connect an integrated water circuit, which includes an inlet water circuit for the liquid to be filtered and an outlet water circuit for the filtered liquid. The connector 3 includes an inlet water channel 31 and an outlet water channel 32, as well as a first inlet water channel 33 and a first outlet water channel 34 corresponding to the inlet water channel 31 and the outlet water channel 32, respectively. The connector 3 is provided with a first shut-off valve 37 in the first inlet water channel 33, or a first shut-off valve 37 is provided in both the first inlet water channel 33 and the first outlet water channel 34. The first shut-off valve 37 includes a valve body 371 and a spring member 372 for providing the valve body 371 to close the first inlet water channel 33 or the first outlet water channel 34.

[0045] One specific embodiment of filter connector 1 is as follows: Figure 1-10 As shown, a filter connector 1 includes a connector body 11 and two cylindrical shut-off valves 12. The connector body 11 is provided with a receiving cavity 111 for accommodating the head of the filter 2. The receiving cavity 111 contains the cylindrical shut-off valves 12, which are restricted from rotation after installation and can move axially within the receiving cavity 111. The cylindrical shut-off valves 12 are used to connect the fluid passage of the filter 2 and the connector seat 3.

[0046] Preferably, a main channel 112 and two shut-off valve channels 113 are provided at the axial center in the receiving cavity 111 of the connector body 11. The columnar shut-off valve 12 is axially movable in the shut-off valve channel 113, and the main channel 112 accommodates the head of the filter 2.

[0047] The preferred structure of the columnar shut-off valve 12 is that one end of the columnar shut-off valve 12 is provided with an outlet or an inlet, and a first inlet 122 or a first outlet 123 is provided on the side wall near the other end of the columnar shut-off valve 12. A first sealing ring 124 is provided above or below the first inlet 122 or the first outlet 123.

[0048] Preferably, the first inlet 122 and the first outlet 123 of the columnar shut-off valve 12 are located at the same horizontal level in the radial direction, and the second inlet 232 and the second outlet 233 on the protrusion 231 are also at the same horizontal level in the radial direction, so as to shorten the length of the columnar shut-off valve 12 and the protrusion 231, reduce the overall length of the filter 2, and make it more convenient to transport.

[0049] Preferably, the upper end of the columnar shut-off valve 12 and the head of the filter 2 are provided with an axial limiting structure. When the filter 2 moves axially, it drives the columnar shut-off valve 12 to move axially. The axial limiting structure is a snap-fit ​​part 121. In one embodiment, the columnar shut-off valve 12 is snap-fitted into the annular groove on the lower end face of the head of the filter 2. In another preferred embodiment, the columnar shut-off valve 12 is snap-fitted into the protrusion 231 of the filter 2. The protrusion 231 of the filter 2 can rotate relative to the columnar shut-off valve 12 to keep the first inlet 122 and the first outlet 123 of the columnar shut-off valve 12 and the second inlet 232 and the second outlet 233 on the protrusion 231 at the same height, so as to achieve precise alignment between the first inlet 122 and the first outlet 123 and the second inlet 232 and the second outlet 233.

[0050] The connection between the connector body 11 and the filter 2 can be either a threaded connection or a connection using a guide groove and a locking block. The connector body 11 may be provided with a threaded connection or a guide groove, and the guide groove may be at least partially configured as a spiral groove 133 or an inclined groove. Alternatively, the connector body 11 may be connected to the filter 2 via a threaded connection or a guide groove on a separately formed connecting seat 13, and the guide groove may be at least partially configured as a spiral groove 133 or an inclined groove. The connecting seat 13 and the connector body 11 are detachably connected.

[0051] The preferred connection seat 13 can be configured to include a first seat 131 and a second seat 132, with the spiral grooves 133 on the first seat 131 and the second seat 132 communicating with each other. A gap 134 is formed between the first seat 131 and the second seat 132, which is used to accommodate the snap-fit ​​portion 121 of the columnar shut-off valve 12. A chuck 237 is provided on the protrusion 231 of the filter 2, and the chuck 237 snaps into the snap-fit ​​portion 121 of the columnar shut-off valve 12. The chuck 237 is provided with a protrusion 238 protruding outward, which fits in the spiral groove 133. The snap-fit ​​portion 121 of the columnar shut-off valve 12 forms a channel for the protrusion 238 to pass through.

[0052] During assembly, the columnar shut-off valve 12 is first snapped into the filter 2, and the columnar shut-off valve 12 is placed in the shut-off valve channel 113. Then, the first seat 131 and the second seat 132 are fixedly installed on the connector body 11. The snap-fit ​​part 121 of the columnar shut-off valve 12 is positioned in the gap 134. The gap between the first seat 131 and the second seat 132 can restrict the rotation of the columnar shut-off valve 12. Furthermore, a limit structure can be provided in the shut-off valve channel 113 and / or the receiving cavity 111 of the connector body 11 to restrict the rotation of the columnar shut-off valve 12.

[0053] During installation, the protrusion 238 of filter 2 rotates into the spiral groove 133. Simultaneously, the rotation of filter 2 drives the columnar shut-off valve 12 to move axially. During the movement of the snap-fit ​​part 121 of the columnar shut-off valve 12, it connects the spiral grooves 133 of the first seat 131 and the second seat 132. The protrusion 238 of filter 2 rotates through the snap-fit ​​part 121 to form a channel. As the protrusion 238 of filter 2 rotates into position within the spiral groove 133, the columnar shut-off valve 12 moves axially into position and engages with the first shut-off valve 37 of the connector seat 3. The second outlet 233 on the protrusion 231 of filter 2 aligns with the first inlet 122 on the columnar shut-off valve 12. The second inlet 232 on the protrusion 231 aligns with the second outlet 232 on the columnar shut-off valve 12. The 33 sections are aligned to form a continuous fluid channel. At the same time, the columnar shut-off valve 12 moves axially to drive the valve body 371, opening the first inlet channel 33 or the first outlet channel 34, forming a continuous fluid channel with the connector seat 3. Conversely, during disassembly, the rotation of the filter 2 synchronously drives the second inlet 232 and the second outlet 233 on the protrusion 231 to be misaligned with the first outlet 123 and the first inlet 122 on the columnar shut-off valve 12, thus shutting off the fluid channel on the filter 2. Simultaneously, the shut-off valve on the connector seat 3 shuts off the fluid channel on the connector seat 3 due to the axial movement of the columnar shut-off valve 12. Therefore, during disassembly and assembly, the fluid channels on the filter 2 and the connector seat 3 can be shut off immediately, minimizing fluid leakage during disassembly.

[0054] Preferably, the filter connector 1 of this utility model can also be connected to a connector seat 3 with an internal diversion valve body 371. Specifically, the connector seat 3 is provided with a first valve body 36, which controls the diversion channel 35 between the water inlet channel 31 and the water outlet channel 32 of the connecting pipeline. The filter 2 is provided with a diversion switch 234, which is used to drive the first valve body 36 to open and close the diversion channel 35. The main channel 112 of the filter 2 connector 1 is used for the diversion switch 234 to pass through.

[0055] Preferably, the diversion switch 234 is located at the head of the protrusion 231 of the filter 2. The diversion switch 234 is connected to the first valve body 36. The diversion switch 234 is driven to rotate by rotating the bottle body of the filter 2, thereby driving the rotation and axial movement of the first valve body 36.

[0056] The filter 2 and the connector 3 can be connected by directly locking the filter 2 and the connector 3 together, or by fixing the filter 2 to the connector body 11, and then fixing the connector body 11 to the connector 3 together.

[0057] This utility model provides a preferred connection method between the filter 2 and the connector 3. The filter 2 is fixed on the filter 2 connector 1, the filter 2 connector 1 is fixedly connected to the connector 3, and the connector 3 is provided with a locking pin 38.

[0058] The connector body 11 has a mounting cylinder 114 at the axial position of its lower end face. The mounting cylinder 114 allows the diverter switch 234 to pass through. A locking member 14 is installed on the mounting cylinder 114. The locking member 14 is used to lock and connect with the connector seat 3. The rotation of the diverter switch 234 drives the locking member 14 to lock with the connector seat 3. The locking member 14 is provided with a linkage member with the filter 2. The linkage member drives the locking structure to lock with the connector seat 3 by converting the rotational or axial movement of the filter 2.

[0059] Preferably, the locking member 14 is rotatably connected to the mounting cylinder 114 at a defined rotation angle, and the linkage converts the rotational motion of the filter 2 into a driving locking structure that locks to the connector seat 3. The locking member 14 is preferably configured as a locking sleeve 141, as shown in the image. Figure 6 As shown, the lower end of the locking sleeve 141 is provided with an opening, and an alignment groove 142 extends upward from the opening. A locking groove 143 extends circumferentially from the alignment groove 142. A locking pin 38 is provided in the mating connector seat 3. In the initial installation position, the opening of the locking sleeve 141 and the alignment groove 142 are aligned with the locking pin 38. After the filter 2 drives the locking sleeve 141 to rotate, the locking groove 143 of the locking sleeve 141 holds the locking pin 38, restricting the joint body 11 from axially disengaging from the connector seat 3.

[0060] The circumferential outer wall of the locking sleeve 141 is provided with a positioning arc groove 148. The second pin 149 on the mounting cylinder 114 axially holds the locking sleeve 141 on the mounting cylinder 114. The positioning arc groove 148 allows the second pin 149 to slide relative to the locking sleeve 141 at a preset angle.

[0061] The preferred implementation of the linkage component is as follows: Figure 6-9As shown, the locking sleeve 141 cooperates with the diversion switch 234 on the filter 2. Preferably, the outer wall of the diversion switch 234 is provided with a protrusion 235, and the inner wall of the locking sleeve 141 is provided with a protrusion. The diversion switch 234 drives the locking sleeve 141 to rotate through the cooperation of the protrusion 235 and the protrusion. When the rotation reaches a preset angle, the protrusion 235 and the protrusion release the contact relationship, and the filter 2 and the diversion switch 234 can continue to rotate to continue assembling the filter 2 and the connector 3.

[0062] Preferably, the protrusions provided on the inner wall of the locking sleeve 141 include a starting position protrusion 144 and a stopping position protrusion 145. When the shunt switch 234 is in the starting position, the protrusion 235 is located between the starting position protrusion 144 and the stopping position protrusion 145. The stopping position protrusion 145 can prevent the filter 2 from rotating in the opposite direction. On the other hand, when the filter 2 is rotated and installed in place, the stopping position protrusion 145 restricts the filter 2 from continuing to rotate.

[0063] The locking sleeve 141 preferably also includes a safety structure for further linkage. This safety structure keeps the locking sleeve 141 locked to the diverter switch 234 in its initial position and releases the lock when the locking sleeve 141 rotates to a preset position. The safety structure preferably includes a first pin 147 that can move radially on the locking sleeve 141. A guide protrusion is provided on the inner wall of the mounting cylinder 114. The radial thickness of this guide protrusion decreases at the end in the rotational direction. When the first pin 147 is at the beginning position of the guide protrusion, the guide protrusion keeps the first pin 147 protruding and abutting against the protrusion 235 on the diverter switch 234. When the first pin 147 is at the end position of the guide protrusion, the guide protrusion releases the first pin 147 from protruding into the inner wall of the locking sleeve 141. Preferably, the guide protrusion also has anti-disengagement protrusions at the beginning and / or end in the rotational direction.

[0064] At least one limiting structure is provided between the locking sleeve 141 and the mounting cylinder 114 to limit the rotation angle. The limiting structure is one or more of the following: a limiting protrusion and a limiting protrusion cooperating, or a limiting protrusion and a limiting groove 146 cooperating.

[0065] Preferably, a limiting protrusion is provided on the outer wall of the locking sleeve 141, which cooperates with the guide protrusion on the inner wall of the mounting cylinder 114 to limit the rotation angle of the locking sleeve 141.

[0066] Further preferably, a limiting structure is provided between the locking sleeve 141 and the columnar shut-off valve 12 to restrict the rotation angle. Specifically, the locking sleeve 141 is provided with a limiting groove 146, which is preferably provided on a limiting protrusion. The side wall of the mounting cylinder 114 is provided with a through mounting hole 115, and a limiting block 116 that can move axially along the mounting hole 115 is provided in the mounting hole 115. The limiting block 116 is preferably a steel ball. A clearance groove 125 is provided on one side of the columnar shut-off valve 12 near the lower end, corresponding to the limiting block 116. When the columnar shut-off valve 12 moves downward until the clearance groove 125 passes the limiting block 116, it reaches a preset position. The outer wall surface of the columnar shut-off valve 12 pushes the limiting block 116 toward the locking sleeve 141 and abuts against the limiting groove 146 of the locking sleeve 141.

[0067] The limiting block 1161 is detachably connected to the mounting cylinder 114. The preferred mounting structure is that the lower end of the mounting cylinder 114 is provided with a mounting notch 117, and a mounting seat 118 is detachably connected inside the mounting notch 117. The mounting seat 118 and the mounting notch 117 form a mounting hole 115 to accommodate the limiting block 116.

[0068] Preferably, the length setting of the clearance groove 125 can achieve synchronization between the preset position and the preset rotation angle termination of the locking sleeve 141.

[0069] The specific driving process is as follows: In the initial position, the protrusion 235 of the diverter switch 234 is located between the initial position protrusion 144 and the termination position protrusion 145. When it rotates to the preset angle, the second pin 149 of the mounting cylinder 114 abuts against the groove wall of the positioning arc groove 148 of the locking sleeve 141, and / or the second limiting protrusion and the guide protrusion of the mounting cylinder 114 abut against each other, and / or the side wall of the columnar shut-off valve 12 pushes the limiting block 116 to be positioned on the limiting groove 146. Under the action of the second pin 149 and / or the guide protrusion of the mounting cylinder 114, the protrusion 235 and the initial position protrusion 144 are released from the abutment relationship, and the diverter switch 234 continues to rotate. The diverter switch 234 rotates to abut against the termination protrusion and stops rotating.

[0070] By setting the locking element 14 on the connector body 11, the installation structure of the filter 2 and the connector 1 is realized. The installation structures of the connector 1 and the connector seat 3 are set independently to increase the independence and strength of each installation structure. This avoids the weak connection strength between the filter 2 and the connector seat 3 due to limited installation space. Furthermore, by linking the locking element 14 and the filter 2, the filter 2 and the connector seat 3 are installed and connected in one step through rotation. This installation method is easier for consumers to understand and allows consumers to directly replace and install the filter 2.

[0071] In addition, in the initial state, the columnar shut-off valve that connects the filter 2 and the connector seat 3 can be partially or completely contained within the receiving cavity 111 of the connector body 11, making it less likely to be damaged during transportation.

[0072] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A filter connector for connecting a connector seat and a filter, characterized in that, include The connector body has a receiving cavity for accommodating the filter head, and the receiving cavity has at least two shut-off valve passages. At least two cylindrical shut-off valves are provided for fluid passages connecting the filter and the fitting seat, and at least two cylindrical shut-off valves are axially movable within the shut-off valve passages and restrict rotation.

2. A filter connector according to claim 1, characterized in that: The upper end of the columnar shut-off valve is connected to a snap-fit ​​part, which is used to connect with the head of the filter and restricts the axial movement of the columnar shut-off valve relative to the filter.

3. A filter connector according to claim 1, characterized in that: The two columnar stop valves are respectively provided with a first inlet and a first outlet at the same horizontal level in the radial direction, and each columnar stop valve is provided with a first sealing ring at the upper and lower positions of the inlet and outlet.

4. A filter connector according to claim 2, characterized in that: The connector body is provided with a first seat and a second seat, and the guide grooves on the first seat and the second seat are interconnected. The guide groove includes at least an oblique or spiral section. A gap is formed between the first seat and the second seat, which is used to accommodate the snap-fit ​​part of the columnar shut-off valve.

5. A filter connector according to claim 1, characterized in that: The connector body is provided with a locking element for locking connection with the connector seat. The locking element is provided with a linkage element that cooperates with the filter. The linkage element drives the locking structure to lock with the connector seat by converting the rotational or axial movement of the filter.

6. A filter connector according to claim 5, characterized in that: The locking element is a locking sleeve provided on the connector body. The lower end of the locking sleeve has an opening, and the opening extends upward to form an alignment groove. The alignment groove extends circumferentially to form a locking groove, which is used to lock into the connector seat. The locking sleeve is rotatably connected to the connector body at a defined rotation angle.

7. A filter connector according to claim 6, characterized in that: The linkage component includes at least one starting position protrusion on the inner wall of the locking sleeve. When the filter rotates, the starting position protrusion moves synchronously with the filter and abuts against it. At least one limiting structure restricting the rotation angle is provided between the locking sleeve and the coupling head body. After the locking sleeve rotates to the limiting position relative to the coupling head body, the starting position protrusion begins to disengage from the filter.

8. A filter connector according to claim 6, characterized in that: At least one limiting structure is provided between the locking sleeve and the coupling head body to limit the rotation angle. The limiting structure is one or more of the following: a limiting protrusion and a limiting protrusion cooperating, or a limiting protrusion and a limiting groove cooperating.

9. A filter connector according to claim 7, characterized in that: The connector body is provided with an installation cylinder, and the locking sleeve is rotatably positioned inside the installation cylinder. The side wall of the installation cylinder is provided with an installation hole, and a limiting block that can move axially along the installation hole is provided inside the installation hole. The locking sleeve is provided with a limiting groove that cooperates with the limiting block. When the columnar shut-off valve moves axially to the preset position, the outer wall surface of the columnar shut-off valve pushes the limiting block to move towards the locking sleeve and abuts against the limiting groove of the locking sleeve. A clearance groove is provided on the side of the columnar shut-off valve near the lower end, corresponding to the limiting block. When the columnar shut-off valve moves downward until the clearance groove passes the position of the limiting block, it reaches the preset position.

10. A filter comprising a bottle body, a filter element housed within the bottle body, and an end cap for sealing the bottle body, characterized in that, It includes the filter connector as described in any one of claims 1-9.

Images