Water purification filter element convenient to replace

Abstract

During installation, a filter element is inserted into a filter element seat, a filter element shell is inserted into an installation groove, the filter element shell extrudes an insertion rod, the insertion rod is inserted into a second limiting ring groove, a knob is pushed along a sliding groove, the knob drives a push rod to push a clamping block into a first limiting ring groove, and then the knob is rotated; the limiting rod is clamped in the clamping groove, so that the assembly of the filter element cover, the filter element shell and the filter element is completed. The movement of the push rod is controlled through the knob, so that the clamping block can be quickly inserted into or withdrawn from the first limiting ring groove, and the quick locking and unlocking of the filter element cover and the filter element shell are realized. And the stable connection between the filter element and the filter element seat on the filter element cover is ensured through the matching of the second limiting ring groove and the insertion rod. The problems that the filter element is installed and fixed in a thread screwing mode, and the filter element cover body and the filter element shell are connected in a thread screwing mode, so that the thread screwing position is prone to thread slipping and thread staggering are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purifying filter core technical field, especially a water purifying filter core convenient to replace. BACKGROUND

[0002] Water purifier filter core is the core component of water purifying equipment, removes the impurity, harmful substance and peculiar smell in water through physical filtration, chemical adsorption etc., and the water purifier needs to replace the filter core regularly, thereby providing clean and safe drinking water.

[0003] However, the conventional water purifier mostly adopts the mode of thread screwing to install and fix the filter core, and the filter core cover body and the filter core shell also adopt the mode of thread screwing to connect, when disassembling, the thread screwing place is prone to thread slipping and thread error, which is inconvenient for the user to replace the filter core. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the water purifier adopts the mode of thread screwing to install and fix the filter core, and the filter core cover body and the filter core shell also adopt the mode of thread screwing to connect, leading to thread slipping and thread error at the thread screwing place.

[0005] The utility model provides a water purifying filter core convenient to replace, including filter core cover, filter core shell and filter element, the top of filter core cover is equipped with water inlet, the bottom of filter core cover is equipped with water outlet, filter core shell is equipped with first limit ring groove, filter element is equipped with second limit ring groove, filter core cover is equipped with installation groove, knob seat and filter core seat, knob seat and installation groove are communicated, filter core seat is located in installation groove and is communicated with water inlet, knob seat is equipped with sliding slot, one end of sliding slot near filter core cover is equipped with clamping groove, the inside of knob seat is equipped with push rod, one end of push rod is equipped with the knob that can rotate around push rod, the knob is equipped with limit rod, limit rod is located in sliding slot, the other end of push rod is equipped with clamping block, clamping block can be inserted in first limit ring groove, be equipped with insertion hole on filter core seat, be equipped with insertion rod in insertion hole, be equipped with first spring on insertion rod, one end of first spring is connected with one end of insertion rod, the other end of first spring is connected with filter core seat, the other end of insertion rod can be inserted in second limit ring groove.

[0006] Preferably, the two sides of the insertion rod are provided with balance pieces, the balance pieces include limit grooves, guide rods, sliding blocks, second springs and connecting rods, the limit grooves are arranged on the filter core seat, the two ends of the guide rods are connected to the limit grooves, the guide rods pass through the second springs and the sliding blocks, the sliding blocks are connected to one end of the second springs, one end of the connecting rods is hinged to the sliding blocks, and the other end of the connecting rods is connected to the insertion rod.

[0007] Preferably, the side of the insertion rod close to the first spring is provided with an abutting head, one side of the abutting head is arc-shaped, and the other side of the abutting head is hinged to the connecting rod.

[0008] Preferably, one end of the filter core shell is provided with a notch for connecting the water inlet and the filter element.

[0009] Preferably, the replaceable water purifying filter core further comprises a first sealing ring, and outer walls of the first sealing ring abut against inner side walls of the installation groove and a bottom end of the filter core cover respectively.

[0010] Preferably, the replaceable water purifying filter core further comprises a second sealing ring, and outer walls of the second sealing ring abut against inner side walls of the installation groove and an outer side wall surface of the filter core cover respectively.

[0011] During installation, the filter element is inserted into the filter core seat, and then the filter core shell is inserted into the installation groove, the filter core shell extrudes the insertion rod, the insertion rod is inserted into the second limiting ring groove, the knob is pushed along the sliding groove, the knob drives the push rod to push the clamping block into the first limiting ring groove, the knob is rotated again, the limiting rod is clamped in the clamping groove, and the assembly of the filter core cover, the filter core shell and the filter element is completed. Water flows in from the water inlet, is filtered by the filter element and then flows out from the water outlet. The movement of the push rod is controlled through the knob, so that the clamping block can be quickly inserted into or withdrawn from the first limiting ring groove, thereby realizing quick locking and unlocking of the filter core cover and the filter core shell. Through cooperation of the second limiting ring groove and the insertion rod, stable connection of the filter element and the filter core seat on the filter core cover is ensured. The problem that threads at the threaded and screwed positions are prone to slipping and missing is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A perspective view of the replaceable water purifying filter core provided by the utility model.

[0013] Figure 2 A sectional view of the replaceable water purifying filter core provided by the utility model.

[0014] Figure 3 A sectional view of the replaceable water purifying filter core provided by the utility model.

[0015] Figure 4 A Figure 3 An enlarged view of position A in FIG.

[0016] Figure 5 A Figure 3 An enlarged view of position B in FIG.

[0017] In the figure: 1 - filter core cover; 11 - water inlet; 12 - water outlet; 13 - mounting groove; 14 - knob seat; 141 - sliding groove; 142 - clamping groove; 15 - filter core seat; 151 - insertion hole; 152 - insertion rod; 153 - first spring; 154 - abutting head; 16 - push rod; 161 - knob; 162 - limiting rod; 163 - clamping block; 2 - filter core shell; 21 - first limiting ring groove; 22 - notch; 3 - filter element; 31 - second limiting ring groove; 4 - balancing piece; 41 - limiting groove; 42 - guide rod; 43 - sliding block; 44 - second spring; 45 - connecting rod; 5 - first sealing ring; 6 - second sealing ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0019] REFERENCE Figures 1-5 A convenient replacement water purification filter core comprises a filter core cover 1, a filter core shell 2 and a filter element 3. The top end of the filter core cover 1 is provided with a water inlet 11, and the bottom end of the filter core cover 1 is provided with a water outlet 12. The filter core shell 2 is provided with a first limiting ring groove 21, and the filter element 3 is provided with a second limiting ring groove 31. The filter core cover 1 is provided with a mounting groove 13, a knob seat 14 and a filter core seat 15. The knob seat 14 and the mounting groove 13 are in communication, and the filter core seat 15 is located in the mounting groove 13 and is in communication with the water inlet 11. The knob seat 14 is provided with a sliding groove 141, and the sliding groove 141 is provided with a clamping groove 142 at one end close to the filter core cover 1. The inside of the knob seat 14 is provided with a push rod 16, one end of the push rod 16 is provided with a knob 161 which can rotate around the push rod 16, and the knob 161 is provided with a limiting rod 162 which is located in the sliding groove 141. The other end of the push rod 16 is provided with a clamping block 163 which can be inserted into the first limiting ring groove 21. The filter core seat 15 is provided with an insertion hole 151, and the insertion hole 151 is provided with an insertion rod 152. The insertion rod 152 is provided with a first spring 153, one end of the first spring 153 is connected with one end of the insertion rod 152, and the other end of the first spring 153 is connected with the filter core seat 15. The other end of the insertion rod 152 can be inserted into the second limiting ring groove 31.

[0020] During installation, the filter element 3 is inserted into the filter core seat 15, and then the filter core shell 2 is inserted into the installation slot 13. The filter core shell 2 extrudes the insertion rod 152, so that the insertion rod 152 is inserted into the second limiting ring groove 31. The knob 161 is pushed along the sliding groove 141, and the knob 161 drives the push rod 16 to push the clamping block 163 into the first limiting ring groove 21. Then, the knob 161 is rotated again, so that the limiting rod 162 is clamped in the clamping groove 142. The assembly of the filter core cover 1, the filter core shell 2 and the filter element 3 is completed. The water source flows into the water inlet 11, is filtered by the filter element 3, and then flows out of the water outlet 12. The movement of the push rod 16 is controlled by the knob 161, so that the clamping block 163 can be quickly inserted into or withdrawn from the first limiting ring groove 21. Therefore, the filter core cover 1 and the filter core shell 2 can be quickly locked and unlocked. Through the cooperation of the second limiting ring groove 31 and the insertion rod 152, the stable connection of the filter element 3 and the filter core seat 15 on the filter core cover 1 is ensured. The problem that the threads at the screwing position are prone to slipping or misaligning is solved.

[0021] In some embodiments, with reference to Figure 5 , the two sides of the insertion rod 152 are provided with balance pieces 4. The balance piece 4 includes a limiting groove 41, a guide rod 42, a sliding block 43, a second spring 44 and a connecting rod 45. The limiting groove 41 is arranged on the filter core seat 15. The two ends of the guide rod 42 are connected to the limiting groove 41. The guide rod 42 passes through the second spring 44 and the sliding block 43. One end of the sliding block 43 and the second spring 44 is connected. One end of the connecting rod 45 is hinged to the sliding block 43, and the other end of the connecting rod 45 is connected to the insertion rod 152.

[0022] The two sides of the insertion rod 152 are provided with balance pieces 4, which ensure that the insertion rod 152 is uniformly stressed during insertion and withdrawal, and avoid the phenomenon of deviation or jamming caused by uneven stress on one side. The limiting groove 41 and the guide rod 42 cooperate to ensure that the sliding block 43 moves within a certain range and prevents the sliding block 43 and the connecting rod 45 from deviating from the predetermined path. Through the movement of the sliding block 43, the connecting rod 45 drives the insertion rod 152 to perform the extension and retraction action, thereby completing the locking and unlocking operation of the filter element 3. The second spring 44 provides elastic force to help the sliding block 43 reset, thereby realizing the automatic withdrawal of the insertion rod 152 from the insertion hole 151.

[0023] Preferably, with reference to Figure 5 , the side of the insertion rod 152 close to the first spring 153 is provided with an abutting head 154. One side of the abutting head 154 is an arc surface structure, and the other side of the abutting head 154 is hinged to the connecting rod 45.

[0024] When the filter core shell 2 is inserted into or withdrawn from the installation slot 13, the arc surface structure reduces the friction of the abutting head 154 sliding on the filter core shell 2, so that the disassembly process of the filter core shell 2 is more smooth.

[0025] In some embodiments, with reference toFigure 2 One end of the filter core shell 2 is provided with a notch 22 for connecting the water inlet 11 and the filter element 3.

[0026] By arranging the notch 22, it is ensured that the water entering from the water inlet 11 can smoothly flow into the filter element 3 and then flow out from the water outlet 12, avoiding water flow being blocked or unevenly distributed.

[0027] In some embodiments, the replaceable water purification filter core further comprises a first sealing ring 5, referring to Figure 3 The outer wall of the first sealing ring 5 abuts against the inner side wall of the mounting groove 13 and the bottom end of the filter core cover 1, respectively.

[0028] By arranging the first sealing ring 5, water leakage from the gap between the mounting groove 13 and the filter core shell 2 is prevented, affecting the operation of the push rod 16.

[0029] Preferably, the replaceable water purification filter core further comprises a second sealing ring 6, referring to Figure 3 The outer wall of the second sealing ring 6 abuts against the inner side wall of the mounting groove 13 and the outer side wall surface of the filter core cover 1, respectively.

[0030] By arranging the second sealing ring 6, the sealing between the outer side wall of the filter core cover 1 and the filter core shell 2 is further enhanced. In the case of high-pressure water flow, the double sealing rings can better withstand pressure, avoiding water leakage problems.

[0031] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "straight", "horizontal", "center", "top", "bottom", "top", "bottom", "inner", "outer", "inner side", "outer side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Among them, "inside" refers to the inside or enclosed area or space. "Periphery" refers to the area around a particular component or a particular area.

[0032] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A replaceable water purification filter cartridge, comprising a filter cartridge cover, a filter cartridge housing, and a filter element, wherein the top of the filter cartridge cover has a water inlet and the bottom of the filter cartridge cover has a water outlet, characterized in that: The filter cartridge housing has a first limiting ring groove, the filter element has a second limiting ring groove, the filter cartridge cover has an installation groove, a knob seat, and a filter cartridge seat. The knob seat and the installation groove are connected, the filter cartridge seat is located in the installation groove and is connected to the water inlet. The knob seat has a sliding groove, and a locking groove is provided at one end of the sliding groove near the filter cartridge cover. A push rod is provided inside the knob seat, and a knob that can rotate around the push rod is provided at one end of the push rod. The knob has a limiting rod, which is located in the sliding groove. A locking block is provided at the other end of the push rod, and the locking block can be inserted into the first limiting ring groove. The filter cartridge seat has an insertion hole, and an insertion rod is provided in the insertion hole. A first spring is provided on the insertion rod, one end of the first spring is connected to one end of the insertion rod, and the other end of the first spring is connected to the filter cartridge seat. The other end of the insertion rod can be inserted into the second limiting ring groove.

2. The easily replaceable water purification filter element according to claim 1, characterized in that: The insert rod is provided with balancing components on both sides. The balancing components include a limiting groove, a guide rod, a slider, a second spring, and a connecting rod. The limiting groove is located in the filter element seat. Both ends of the guide rod are connected to the limiting groove. The guide rod passes through the second spring and the slider. One end of the slider and the second spring are connected. One end of the connecting rod is hinged to the slider, and the other end of the connecting rod is connected to the insert rod.

3. The easily replaceable water purification filter element according to claim 2, characterized in that: The insertion rod has an abutment on the side near the first spring. One side of the abutment has an arc-shaped structure, and the other side of the abutment is hinged to the connecting rod.

4. The easily replaceable water purification filter element according to claim 1, characterized in that: One end of the filter cartridge housing has a notch for connecting the water inlet and the filter element.

5. The easily replaceable water purification filter element according to claim 1, characterized in that: It also includes a first sealing ring, the outer wall of which abuts against the inner wall of the mounting groove and the bottom of the filter element cover.

6. The easily replaceable water purification filter element according to claim 5, characterized in that: It also includes a second sealing ring, the outer wall of which abuts against the inner wall of the mounting groove and the outer wall of the filter element cover.

Images