Filter core locking mechanism and parallel central water purifier

Abstract

The utility model discloses a filter core locking mechanism and parallel central water purifier relates to water purification equipment technical field, include: substrate, valve head pipe subassembly, locking plugboard and pressing piece, the substrate downside is provided with filter core plug groove, is provided with two first through -hole in filter core plug groove, valve head pipe subassembly includes valve head, with the water inlet pipe of valve head intercommunication, water outlet pipe and the valve seat of supporting valve head, and valve head is used for the insertion of filter core water inlet end and filter core water outlet end, locking plugboard movably installs on the substrate upside, and locking plugboard is provided with first reset piece between the substrate, and first reset piece is used for drive locking plugboard to pass through the valve head hole of valve head side wall to lock filter core water inlet end or filter core water outlet end, pressing piece movably sets between two valve heads, and pressing piece can move to drive locking plugboard to pass out from valve head hole to unlock filter core water inlet end or filter core water outlet end. Such can reduce the cumbersome problem of filter core dismounting, improve the convenience when filter core replacement.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a filter cartridge locking mechanism and a parallel central water purifier. Background Technology

[0002] The city's water supply pipelines are old and long. Rust, silt and other impurities in the pipelines can cause water-using equipment to malfunction. Therefore, pre-filters are usually installed on the inlet pipes to improve the water quality and ensure the water supply to downstream users.

[0003] A central water purifier is the first stage of purification for all the water in a house, filtering out sediment, rust, and large particles from tap water. It prevents the large amounts of sediment and impurities generated in urban and residential water supply networks from harming human health, and also provides proactive protection for concealed pipes, faucets, plumbing, water heaters, boilers, central air conditioning, washing machines, dishwashers, coffee machines, and other water appliances (water purifiers, reverse osmosis systems, water softeners). However, most existing water purifiers use threaded or clamp-type filter cartridges, making disassembly relatively cumbersome and maintenance difficult, requiring replacement, which brings inconvenience to some customers.

[0004] Therefore, how to solve the problem of cumbersome disassembly of existing water purifier filter cartridges is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a filter element locking mechanism that can reduce the cumbersome problem of filter element disassembly; this utility model also provides a parallel central water purifier including the above-mentioned filter element locking mechanism, which can reduce the difficulty of filter element replacement and improve the convenience of filter element replacement.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A filter cartridge locking mechanism includes:

[0008] The substrate has a filter cartridge insertion groove on its lower side, and the filter cartridge insertion groove has two first through holes for inserting the filter cartridge inlet end and the filter cartridge outlet end respectively.

[0009] The valve head tube assembly includes a valve head disposed in a first through hole, an inlet pipe and an outlet pipe communicating with the valve head, and a valve seat supporting the valve head. The valve head is used for insertion of the filter element inlet end and the filter element outlet end, and the valve seat is detachably installed on the side of the substrate away from the filter element mounting groove.

[0010] The locking insert plate is movably mounted on the upper side of the base plate in the first direction, and a first reset member is provided between the locking insert plate and the base plate. The first reset member is used to drive the locking insert plate through the valve head hole provided on the valve head side wall to lock the filter element inlet or outlet.

[0011] The pressing element is movable between the two valve heads in the second direction. The pressing element can move toward the base plate to drive the locking plate through the valve head hole to unlock the filter element inlet or outlet.

[0012] In one possible implementation, two locking plates are provided, and the two locking plates are respectively located on both sides of the valve head in the first direction. The locking plates include a plurality of insert teeth for inserting into the valve head hole and side sliders for engaging the pressing element.

[0013] In one possible implementation, the pressing member has an arched structure, which includes a crossbeam and vertical rods connected to both ends of the crossbeam. The crossbeam is movably sleeved on a guide post provided on the valve seat. A second reset member is sleeved on the outer periphery of the guide post. The second reset member is used to drive the pressing member to move in a second direction. A limit screw can be connected to the top of the guide post to prevent the crossbeam from disengaging from the guide post.

[0014] A button is located in the middle of the upper side of the crossbeam, and the button passes through the outer shell covering the upper side of the base plate.

[0015] Furthermore, a first guide slope is provided on the top of the side slider, guide side plates are provided on both sides of the side slider, and a second guide slope is provided at the lower end of the vertical rod to cooperate with the first guide slope. When the vertical rod moves toward the base plate, it can drive the side slider to move in a direction away from the valve head. The guide side plates are used to guide the vertical rod to move in a second direction.

[0016] In one possible implementation, two limiting posts are vertically arranged on the upper side of the base plate and on both sides of the locking insert.

[0017] Limiting protrusions are provided on both the side of the limiting stake near the locking plate and the side of the locking plate near the limiting stake. The limiting protrusions are used to position the first reset component.

[0018] In one possible implementation, a reset rod is provided in the filter element insertion slot. The reset rod is movably inserted into a reset rod mounting portion provided on the substrate, and a third reset member is installed in the reset rod mounting portion to drive the reset rod to extend.

[0019] A parallel central water purifier includes the filter cartridge locking mechanism described above, and also includes a filter cartridge inserted into the filter cartridge insertion slot.

[0020] In one possible implementation, the substrate is provided with two sets of filter cartridge insertion slots, two sets of valve heads, two sets of valve seats, two sets of locking plates, and two sets of pressing parts.

[0021] In one possible implementation, the filter element includes an end cap, a filter cartridge mounted to the lower side of the end cap, and a composite filter element mounted inside the filter cartridge. The filter element inlet and outlet are both located on the upper side of the end cap, and both the filter element inlet and outlet are provided with an end cap annular groove that engages with a locking plate.

[0022] In one possible implementation, the inlet pipe and the outlet pipe are respectively connected to an inlet connector and an outlet connector.

[0023] Compared to the aforementioned background technology, the present invention provides a filter cartridge locking mechanism, comprising: a base plate, a valve head tube assembly, a locking insert plate, and a pressing member; a filter cartridge insertion groove is provided on the lower side of the base plate, and two first through holes are provided in the filter cartridge insertion groove for inserting the filter cartridge inlet end and the filter cartridge outlet end respectively; the valve head tube assembly includes a valve head disposed in the first through hole, an inlet pipe and an outlet pipe communicating with the valve head, and a valve seat supporting the valve head, the valve head being used for inserting the filter cartridge inlet end and the filter cartridge outlet end, and the valve seat being detachable. The filter cartridge is installed on the side of the substrate away from the filter cartridge mounting groove. The locking insert is movable on the upper side of the substrate in the first direction, and a first reset member is provided between the locking insert and the substrate. The first reset member is used to drive the locking insert through the valve head hole provided on the side wall of the valve head to lock the filter cartridge inlet or outlet. The pressing member is movable between the two valve heads in the second direction. The pressing member can move toward the substrate to drive the locking insert through the valve head hole to unlock the filter cartridge inlet or outlet.

[0024] Specifically, the filter element includes two ports: a filter element inlet and a filter element outlet. Correspondingly, the substrate has a filter element insertion slot for inserting the filter element, and two first through holes are provided at the corresponding positions of the filter element insertion slot. That is, when the filter element is inserted into the filter element insertion slot, the filter element inlet and the filter element outlet can also be inserted into the first through holes. Furthermore, a valve head tube assembly for communicating with the filter element is provided on the upper side of the substrate. The valve head tube assembly is installed on the substrate through a crossbeam and a valve seat. The inlet and outlet pipes of the valve head tube assembly are connected to the filter element inlet and the filter element outlet, respectively. It should be noted that the filter element inlet and outlet are inserted into the valve head of the valve head tube assembly after passing through the first through holes, thereby realizing the communication between the two. The filter element inlet and outlet are connected by a locking plate provided on the upper side of the substrate. The locking plate can move along the upper side of the substrate in a first direction, and its end near the first through hole can be connected to the first through hole. When the through-hole moves, it is inserted into the valve head and engages the inlet and outlet ends of the filter element to lock the filter element, preventing it from detaching from the first through-hole. When the filter element needs to be removed, simply apply external force to the pressing component, causing it to move towards the base plate in the second direction. This drives the locking plate away from the first through-hole, separating the end of the locking plate from the inlet / outlet ends of the filter element, allowing the filter element to be pulled out directly. It is important to note that when the external force on the pressing component is removed, the locking plate will move back towards the first through-hole under the action of the first reset component. This design ensures that the filter element remains locked after installation. In summary, pressing the pressing component allows the locking plate to move back and forth in the first direction, thus locking and releasing the filter element. The first reset component locks the filter element after the pressing component is released, reducing the complexity of filter element replacement and improving its convenience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the parallel central water purifier structure provided in an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 Structural sectional view;

[0028] Figure 3 for Figure 1 Exploded view of the structure;

[0029] Figure 4 This is a schematic diagram of the locking mechanism structure provided in an embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the locking mechanism hidden valve head tube assembly provided in an embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of the substrate structure provided in an embodiment of the present utility model;

[0032] Figure 7 for Figure 6 Another structural diagram;

[0033] Figure 8 This is a schematic diagram of the valve head tube assembly structure provided in an embodiment of the present utility model;

[0034] Figure 9 This is a schematic diagram of the locking plate structure provided in an embodiment of the present utility model;

[0035] Figure 10 This is a schematic diagram of the pressing component structure provided in an embodiment of the present utility model;

[0036] Figure 11 This is a schematic diagram of the pressing member and locking plate structure provided in the embodiment of this utility model;

[0037] Figure 12 This is a schematic diagram of the end cap structure provided in an embodiment of the present utility model.

[0038] in:

[0039] 100 - Locking mechanism;

[0040] 110-Substrate, 111-Filter insert groove, 112-First through hole, 113-Limiting post, 1131-Limiting protrusion, 114-Reset rod mounting part, 1141-Reset rod;

[0041] 120-Valve head pipe assembly, 121-Valve head, 1211-Valve head hole, 122-Inlet pipe, 123-Outlet pipe, 124-Valve seat, 1241-Guide post, 125-Horizontal steel;

[0042] 130-Locking plate, 131-Pin tooth, 132-Side slider, 1321-First guide ramp, 1322-Guide side plate;

[0043] 140 - Pressing element, 141 - Crossbeam, 1411 - Second reset element, 142 - Vertical rod, 1421 - Second guide slope, 143 - Button;

[0044] 150 - First reset component;

[0045] 160 - Outer shell;

[0046] 200-Filter element, 210-End cap, 211-Filter element inlet, 212-Filter element outlet, 213-End cap annular groove, 220-Filter cartridge, 230-Composite filter element; Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0050] The purpose of this utility model is to provide a filter element locking mechanism 100, which can reduce the cumbersome problem of disassembling the filter element 200; this utility model also provides a parallel central water purifier including the above-mentioned filter element locking mechanism 100, which can reduce the difficulty of replacing the filter element 200 and improve the convenience of replacing the filter element 200.

[0051] It should be noted that in this embodiment, the X direction in the attached figure is defined as the first direction, and the Y direction is defined as the second direction. The first direction and the second direction are perpendicular to each other.

[0052] To achieve the above objectives, the present invention provides the following technical solution:

[0053] Please see Figures 1 to 12This embodiment provides a filter cartridge locking mechanism 100, including: a base plate 110, a valve head tube assembly 120, a locking insert plate 130, and a pressing member 140; the base plate 110 has a filter cartridge insertion groove 111 on its lower side, and the filter cartridge insertion groove 111 has two first through holes 112 respectively for inserting the filter cartridge inlet end 211 and the filter cartridge outlet end 212; the valve head tube assembly 120 includes a valve head 121 disposed in the first through holes 112, an inlet pipe 122 and an outlet pipe 123 communicating with the valve head 121, and a valve seat 124 supporting the valve head 121. The valve head 121 is used for inserting the filter cartridge inlet end 211 and the filter cartridge outlet end 212, and the valve seat 124 is detachably mounted. The locking plate 130 is mounted on the side of the substrate 110 away from the mounting groove of the filter element 200. The locking plate 130 is movably mounted on the upper side of the substrate 110 in the first direction, and a first reset member 150 is provided between the locking plate 130 and the substrate 110. The first reset member 150 is used to drive the locking plate 130 through the valve head hole 1211 provided on the side wall of the valve head 121 to lock the filter element inlet end 211 or the filter element outlet end 212. The pressing member 140 is movably disposed between the two valve heads 121 in the second direction. The pressing member 140 can move toward the substrate 110 to drive the locking plate 130 out of the valve head hole 1211 to unlock the filter element inlet end 211 or the filter element outlet end 212.

[0054] Specifically, the filter element 200 includes two ports: a filter element inlet end 211 and a filter element outlet end 212. Correspondingly, the substrate 110 is provided with a filter element insertion groove 111 for inserting the filter element 200, and two first through holes 112 are provided at corresponding positions in the filter element insertion groove 111. That is, when the filter element 200 is inserted into the filter element insertion groove 111, the filter element inlet end 211 and the filter element outlet end 212 can also be inserted into the first through holes 112. Furthermore, a valve head tube assembly 120 for communicating with the filter element 200 is provided on the upper side of the substrate 110. The valve head tube assembly 120 is connected to the valve via a crossbeam 141. The base 124 is mounted on the base plate 110. The inlet pipe 122 and outlet pipe 123 of the valve head tube assembly 120 are respectively connected to the filter element inlet end 211 and the filter element outlet end 212. It should be noted that after passing through the first through hole 112, the filter element inlet end 211 and the filter element outlet end 212 are inserted into the valve head 121 of the valve head tube assembly 120 to achieve communication between the two. The filter element inlet end 211 and the filter element outlet end 212 are connected by a locking plate 130 provided on the upper side of the base plate 110. The locking plate 130 can move along the first direction along the upper side of the base plate 110, and it is close to the first through hole 112. The end of the filter element can be inserted into the valve head hole 1211 when it moves near the first through hole 112, and engage the filter element inlet end 211 and the filter element outlet end 212 to lock the filter element 200, preventing the filter element 200 from detaching from the first through hole 112. When it is necessary to remove the filter element 200, it is only necessary to apply external force to the pressing member 140 to move it closer to the base plate 110 in the second direction, thereby driving the locking plate 130 away from the first through hole 112. In this way, the end of the locking plate 130 can be separated from the filter element inlet end 211 and the filter element outlet end 212, so that the filter element 200 can be pulled out directly. It should be noted that when the external force of the pressing member 140 is removed, the locking plate 130 will move back towards the first through hole 112 under the action of the first reset member 150. This setting can ensure that the filter element 200 can always remain in the locked state after installation. In summary, by pressing the pressing member 140, the locking plate 130 can move back and forth in the first direction, thereby realizing the locking and unlocking of the filter element 200. Furthermore, the first reset member 150 realizes the locking of the filter element 200 after the pressing member 140 is released. This reduces the cumbersomeness of replacing the filter element 200 and improves the convenience of replacing the filter element 200.

[0055] In one possible implementation, two locking plates 130 are provided, and the two locking plates 130 are respectively provided on both sides of the valve head 121 in the first direction. The locking plates 130 include a plurality of insert teeth 131 for inserting into the valve head hole 1211 and side sliders 132 for cooperating with the pressing member 140.

[0056] Specifically, such as Figure 5 and Figure 6As shown, two locking plates 130 are provided on both sides of each filter cartridge insertion slot 111 on the substrate 110. The two locking plates 130 are symmetrically arranged and move in opposite directions. That is, the two locking plates 130 move towards the first through hole 112 at the same time to lock the filter cartridge inlet end 211 and filter cartridge outlet end 212 inserted into the valve head 121, or the two locking plates 130 move away from the first through hole 112 at the same time to unlock the filter cartridge inlet end 211 and filter cartridge outlet end 212, thereby disassembling the filter cartridge 200.

[0057] It should be noted that the inner side of the locking plate 130 in this embodiment is provided with several flat teeth 131, and the side wall of the corresponding valve head 121 is provided with valve head holes 1211 corresponding to the shape of the teeth 131, so as to facilitate the entry and exit of the teeth 131. In addition, the movement of the locking plate 130 is achieved by the pressing member 140. Therefore, the upper side of the locking plate 130 in this embodiment is provided with a side slider 132, and the pressing member 140 can apply force to the side slider 132, thereby driving the locking plate 130 to move.

[0058] Furthermore, the pressing member 140 has an arched structure, which includes a crossbeam 141 and vertical rods 142 connected vertically to both ends of the crossbeam 141. The crossbeam 141 is movably sleeved on the guide post 1241 provided on the valve seat 124. A second reset member 1411 is sleeved on the outer periphery of the guide post 1241. The second reset member 1411 is used to drive the pressing member 140 to move in a second direction. The top of the guide post 1241 can be connected to a limiting screw to prevent the crossbeam 141 from disengaging from the guide post 1241. A button 143 is provided in the middle of the upper side of the crossbeam 141. The button 143 passes through the outer shell 160 covering the upper side of the base plate 110.

[0059] like Figure 10 As shown, a cylindrical button 143 is provided on the upper side of the crossbeam 141 of the pressing member 140, and the button 143 can pass through the outer shell 160 provided on the upper side of the base plate 110. The two vertical rods 142 of the pressing member 140 directly contact the side slider 132 of the locking plate 130. In this embodiment, in order to enable the pressing member 140 to automatically spring up and reset when the external force is removed after pressing, a vertical guide post 1241 is provided in the middle of the valve seat 124. A second reset member 1411 is sleeved on the outer periphery of the guide post 1241. At the same time, the guide post 1241 passes through the crossbeam 141 and extends into its interior. A limiting screw is installed at its end to prevent the crossbeam 141 from directly disengaging from the guide post 1241 under the action of the second reset member 1411. In this way, the reset of the pressing member 140 can be achieved.

[0060] In addition, a press-fit buckle can be provided on the lower side of the crossbeam 141, and a corresponding protrusion is provided on the valve seat 124 to engage with the press-fit buckle; when the press-fit buckle contacts the protrusion, it engages with it, and the two lock together, thereby holding the press-fit 140 in place, allowing the user to easily replace the filter element 200; then, when the press-fit buckle is pressed again, it will separate from the protrusion, thereby releasing the press-fit 140; this press-fit buckle has the same structure as that in the prior art, and will not be described in detail here.

[0061] Furthermore, the top of the side slider 132 is provided with a first guide slope 1321, and the two sides of the side slider 132 are provided with guide side plates 1322. The lower end of the vertical rod 142 is provided with a second guide slope 1421 that cooperates with the first guide slope 1321. When the vertical rod 142 moves toward the base plate 110, it can drive the side slider 132 to move in a direction away from the valve head 121. The guide side plate 1322 is used to guide the vertical rod 142 to move in a second direction.

[0062] Specifically, such as Figures 9 to 11 As shown, the top of the side slider 132 is provided with an inclined first guide slope 1321, and the lower end of the vertical rod 142 is provided with a second guide slope 1421 with the same inclination direction and angle. It should be noted that the inclination direction of both should ensure that the pressing member 140 can drive the locking plate 130 to move outward when it moves downward.

[0063] In addition, in order to prevent misalignment between the pressing member 140 and the side slider 132 in the front and rear directions, this embodiment also provides guide side plates 1322 on the front and rear sides of the side slider 132 to restrict the movement direction of the vertical rod 142 so that it can only move vertically.

[0064] In one possible implementation, two limiting posts 113 are vertically arranged on the upper side of the base plate 110 and on both sides of the locking insert plate 130; a limiting protrusion 1131 is provided on the side of the limiting post 113 near the locking insert plate 130 and the side of the locking insert plate 130 near the limiting post 113, and the limiting protrusion 1131 is used to position the first reset member 150.

[0065] In this embodiment, the automatic reset of the locking plate 130 is achieved by the first reset member 150, but the positioning of the first reset member 150 is achieved by the limiting post 113 and the limiting protrusion 1131; specifically as follows... Figures 4 to 6 As shown, the inner sides of the locking plate 130 and the limiting post 113 are provided with a cross-shaped limiting protrusion 1131 at the same height, and a first reset member 150 in a compressed state is fixed between the two opposing limiting protrusions 1131.

[0066] In one possible implementation, a reset rod 1141 is provided in the filter insert groove 111. The reset rod 1141 is movably inserted into the reset rod mounting portion 114 provided on the substrate 110, and a third reset member is installed in the reset rod mounting portion 114. The third reset member is used to drive the reset rod 1141 to extend.

[0067] Understandably, in order to facilitate the quick ejection of the filter element 200 after unlocking and to facilitate the disassembly of the filter element 200, a reset rod 1141 is provided in the filter element insertion slot 111. A third reset component is sleeved on the outer periphery of the portion of the reset rod 1141 located inside the reset rod mounting part 114. The third reset component is always in a compressed state, that is, it always has the tendency to drive the reset rod 1141 to extend. In this way, when the filter element 200 is not subjected to external force, it will be ejected by the reset rod 1141.

[0068] Another object of this application is to provide a parallel central water purifier, including the filter cartridge locking mechanism 100 described above, and a filter cartridge 200 inserted into the filter cartridge insertion slot 111.

[0069] In one possible implementation, the substrate 110 is provided with two sets of filter insert slots 111, two sets of valve heads 121, two sets of valve seats 124, two sets of locking plates 130, and two sets of pressing members 140.

[0070] Understandably, in order to improve the purification effect of the parallel central water purifier, two filter cartridges 200 are installed on the base plate 110. Correspondingly, two sets of locking mechanisms 100 are also set on the base plate 110, as detailed below. Figures 1 to 5 As shown, the inlet pipe 122 and outlet pipe 123 in the two sets of locking components are connected together, and the two filter elements 200 are controlled by independent pressing parts 140, so that the replacement of the two does not affect each other.

[0071] In one possible implementation, the filter element 200 includes an end cap 210, a filter cartridge 220 installed on the lower side of the end cap 210, and a composite filter element 230 installed in the filter cartridge 220. The filter element inlet end 211 and the filter element outlet end 212 are both located on the upper side of the end cap 210, and both the filter element inlet end 211 and the filter element outlet end 212 are provided with an end cap annular groove 213 that engages with the locking insert plate 130.

[0072] In this embodiment, each filter element 200 includes an end cap 210, a filter cartridge 220 with a cylindrical structure installed on the lower side of the end cap 210, and a filter element 200 installed inside the filter cartridge 220; wherein, a water inlet gap is left between the filter element 200 and the inner wall of the filter cartridge 220, the gap is connected to the water inlet end 211 of the filter element, and the channel inside the filter element 200 is connected to the water outlet end 212 of the filter element.

[0073] Furthermore, in this embodiment, the locking of the locking plate 130 and the filter element 200 is achieved by the insertion teeth 131 and the end cap annular groove 213. The filter element inlet end 211 and the filter element outlet end 212 are inserted into the valve head 121, and then the insertion teeth 131 pass through the valve head hole 1211 and engage with the end cap annular groove 213 to achieve the locking of the filter element 200.

[0074] In one possible implementation, the inlet pipe 122 and the outlet pipe 123 are respectively connected to an inlet connector and an outlet connector.

[0075] In this embodiment, the ends of the inlet pipe 122 and the outlet pipe 123 are provided with corresponding connectors. The inlet connector is connected to the inlet pipe 122 and the external thread is connected to the household water pipe. The outlet connector is connected to the outlet pipe 123 to form a complete water pipe and the external thread is connected to the household water pipe.

[0076] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0078] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A filter element locking mechanism (100), characterized in that, include: The substrate (110) has a filter cartridge insertion groove (111) on its lower side. The filter cartridge insertion groove (111) has two first through holes (112) for inserting the filter cartridge inlet end (211) and the filter cartridge outlet end (212) respectively. The valve head tube assembly (120) includes a valve head (121) disposed in the first through hole (112), an inlet pipe (122) communicating with the valve head (121), an outlet pipe (123) and a valve seat (124) supporting the valve head (121). The valve head (121) is used for insertion into the filter element inlet end (211) and the filter element outlet end (212). The valve seat (124) is detachably installed on the side of the base plate (110) opposite to the filter element (200) mounting groove. A locking insert (130) is movably mounted on the upper side of the substrate (110) in a first direction, and a first reset member (150) is provided between the locking insert (130) and the substrate (110). The first reset member (150) is used to drive the locking insert (130) through the valve head hole (1211) provided on the side wall of the valve head (121) to lock the water inlet end (211) of the filter element or the water outlet end (212) of the filter element. The pressing member (140) is movably disposed between the two valve heads (121) in the second direction. The pressing member (140) can move toward the base plate (110) to drive the locking plate (130) through the valve head hole (1211) to unlock the filter element inlet (211) or the filter element outlet (212).

2. The filter element locking mechanism (100) according to claim 1, characterized in that, Two locking plates (130) are provided, and the two locking plates (130) are respectively provided on both sides of the valve head (121) in the first direction. The locking plate (130) includes a plurality of insert teeth (131) for inserting into the valve head hole (1211) and a side slider (132) for cooperating with the pressing member (140).

3. The filter element locking mechanism (100) according to claim 2, characterized in that, The pressing member (140) has an arched structure, including a crossbeam (141) and vertical rods (142) vertically connected to both ends of the crossbeam (141). The crossbeam (141) is movably sleeved on the guide post (1241) provided on the valve seat (124). A second reset member (1411) is sleeved on the outer periphery of the guide post (1241). The second reset member (1411) is used to drive the pressing member (140) to move along the second direction. The top of the guide post (1241) can be connected to a limiting screw to prevent the crossbeam (141) from disengaging from the guide post (1241). A button (143) is provided in the middle of the upper side of the crossbeam (141), and the button (143) passes through the outer shell (160) covering the upper side of the substrate (110).

4. The filter element locking mechanism (100) according to claim 3, characterized in that, The top of the side slider (132) is provided with a first guide slope (1321), and the two sides of the side slider (132) are provided with guide side plates (1322). The lower end of the vertical rod (142) is provided with a second guide slope (1421) that cooperates with the first guide slope (1321). When the vertical rod (142) moves toward the base plate (110), it can drive the side slider (132) to move in a direction away from the valve head (121). The guide side plate (1322) is used to guide the vertical rod (142) to move in the second direction.

5. The filter element locking mechanism (100) according to claim 2, characterized in that, Two limiting posts (113) are respectively vertically arranged on the upper side of the base plate (110) and on both sides of the locking plate (130). The limiting post (113) is provided with a limiting protrusion (1131) on the side of the locking plate (130) and the locking plate (130) is provided with a limiting protrusion (1131) on the side of the limiting post (113). The limiting protrusion (1131) is used to position the first reset member (150).

6. The filter element locking mechanism (100) according to claim 1, characterized in that, A reset rod (1141) is provided in the filter insert groove (111). The reset rod (1141) is movably inserted into the reset rod mounting part (114) provided on the substrate (110). A third reset member is installed in the reset rod mounting part (114). The third reset member is used to drive the reset rod (1141) to extend.

7. A parallel central water purifier, characterized in that, The filter element (200) includes a filter element (200) locking mechanism (100) as described in any one of claims 1-6, and also includes a filter element (200) inserted into the filter element insertion slot (111).

8. The parallel central water purifier according to claim 7, characterized in that, The substrate (110) is provided with two sets of filter insert slots (111), two sets of valve heads (121), two sets of valve seats (124), two sets of locking plates (130), and two sets of pressing members (140).

9. The parallel central water purifier according to claim 8, characterized in that, The filter element (200) includes an end cap (210), a filter cartridge (220) installed on the lower side of the end cap (210), and a composite filter element (230) installed in the filter cartridge (220). The filter element inlet (211) and the filter element outlet (212) are both located on the upper side of the end cap (210), and the filter element inlet (211) and the filter element outlet (212) are both provided with an end cap annular groove (213) that engages with the locking plate (130).

10. The parallel central water purifier according to claim 9, characterized in that, The inlet pipe (122) and the outlet pipe (123) are respectively connected to an inlet connector and an outlet connector.

Images