Water purifier with filter element convenient to replace

Abstract

The utility model relates to a water purifier, in particular to a water purifier with a filter element convenient to replace, which comprises a casing, a cover, a shell, the filter element, a cover, a spline guide rod, a guide sleeve, a worm gear, a motor and a worm, the cover is mounted at the top of the casing, a second guide rod is connected to the bottom of the cover, and the guide sleeve is connected with the worm gear. A guide hole in sliding fit with the second guide rod is formed in the top of the machine shell, the outer shell is arranged in the machine shell, the filter element is arranged in the outer shell, the cover is arranged on the top of the outer shell in a threaded mode, the spline guide rod is arranged on the top of the cover, and the guide sleeve is rotationally connected to the machine cover; the spline guide rod is connected with the guide sleeve in a sliding mode, and the top of the guide sleeve is connected with the worm gear. According to the utility model, the motor is adopted to drive the worm and gear mechanism, so that the cover can be automatically unscrewed or closed, manual screwing is not needed, the labor is saved, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a water purifier, especially a water purifier convenient for replacing filter core. BACKGROUND

[0002] With the pursuit of healthy life, water purifiers are widely used as important equipment for purifying water in daily life. Water purifiers filter impurities, heavy metals and other harmful substances in water through filter cores to provide clean and healthy drinking water. However, as the use time increases, the filter core will gradually accumulate pollutants, resulting in a decline in filtering effect, so regular replacement of the filter core is crucial to ensure water quality. In order to ensure that users can continuously obtain high-quality drinking water, it is particularly important to replace the filter core of the water purifier in time and effectively.

[0003] Most of the water purifiers on the market are inconvenient to operate when replacing the filter core. In general, replacing the filter core requires disassembling multiple components, such as using tools to loosen the fixing screws or rotating complex connection structures to remove the old filter core and install the new filter core. This design not only increases the difficulty of operation for users, but also is time-consuming and laborious, especially for ordinary users who do not have professional skills. SUMMARY

[0004] In order to overcome the inconvenience of most water purifiers on the market when replacing the filter core, the utility model provides a water purifier convenient for replacing the filter core.

[0005] Technical scheme: A water purifier convenient for replacing the filter core, comprising a machine shell, a machine cover, an outer shell, the filter core, a lid, a spline guide rod, a guide sleeve, a worm gear, a motor and a worm, the machine cover is installed on the top of the machine shell, the second guide rod is connected to the bottom of the machine cover, the guide hole is provided on the top of the machine shell and slidably matched with the second guide rod, the outer shell is provided in the machine shell, the filter core is provided in the outer shell, the lid is threadedly provided on the top of the outer shell, the spline guide rod is provided on the top of the lid, the guide sleeve is rotatably connected to the machine cover, the spline guide rod is slidably connected with the guide sleeve, the worm gear is connected to the top of the guide sleeve, the motor is installed on the top of the machine cover, the output shaft of the motor is connected with the worm, and the worm is engaged with the worm gear.

[0006] In addition, it is particularly preferred to further comprise a pressure disc, a first guide rod and a compression spring, the first guide rod is slidably connected to the machine cover, the pressure disc is connected to the bottom of the first guide rod, and the compression spring is connected between the pressure disc and the machine cover.

[0007] In addition, it is particularly preferred to further comprise a ball, the ball is rotatably connected to the bottom of the pressure disc.

[0008] In addition, it is particularly preferred that a spring is further included, and the spring is connected to both sides of the top of the machine shell.

[0009] In addition, it is particularly preferred that a top cover is further included, and the top cover is connected to the top of the machine cover, and the top cover covers the worm gear, the motor and the worm.

[0010] In addition, it is particularly preferred that the bottom of the second guide rod is provided with a insertion hole, and a limiting rod which is matched with the insertion hole is slidably arranged on the machine shell.

[0011] In addition, it is particularly preferred that a button is further included, and the button is arranged on the machine shell and electrically connected with the motor.

[0012] In addition, it is particularly preferred that the machine shell and the machine cover are both provided with a recess, and the spring is arranged in the recess.

[0013] In addition, it is particularly preferred that the limiting rod is in the shape of U and made of stainless steel. In addition, it is particularly preferred that the worm gear, the worm, the spline guide rod and the guide sleeve are all made of plastic.

[0014] Compared with the prior art, the utility model has the following advantages: the utility model adopts the mode that the motor drives the worm gear and the worm mechanism, so that the cover can be automatically opened or closed, without manual rotation, which saves the strength and improves the efficiency. Secondly, the spring auxiliary machine cover pops up and the limiting rod fixing device are arranged, so that the opening and closing of the whole machine cover become more easy and fast, and the risk caused by the misoperation is avoided. Furthermore, the design of the pressure plate, the first guide rod and the compression spring helps to quickly and accurately complete the matching between the cover and the shell thread, and reduces the time of manual adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the sectional structure of the top cover of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the spline guide rod, the guide sleeve and the worm gear of the utility model.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the pressure plate, the guide rod and the compression spring of the utility model.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressure plate and the ball of the utility model.

[0020] Figure 6 It is a schematic diagram of the explosion structure of the utility model.

[0021] Wherein, the above-mentioned drawings include the following reference signs: 1, a casing, 2, a cover, 21, a top cover, 3, an outer shell, 4, a filter core, 5, a lid, 6, a spline guide rod, 7, a guide sleeve, 8, a worm wheel, 9, a motor, 10, a worm, 11, a pressing plate, 12, a first guide rod, 13, a compression spring, 14, a ball, 15, a spring, 16, a second guide rod, 17, a guide hole, 18, a insertion hole, 19, a limiting rod, 20, a button. DETAILED DESCRIPTION

[0022] Although the present application can be described in relation to a particular application or industry, those skilled in the art will recognize a wider applicability of the present application. Those of ordinary skill in the art will recognize that terms such as: above, below, upper, lower, and the like are used as descriptions of relative positioning, and are not intended to limit the scope of the present application as defined by the appended claims. Any numerical designations such as: first or second are merely illustrative, and are not intended to limit the scope of the present application in any way.

[0023] A water purifier with filter core convenient to replace, as shown in Figures 1-6 The present application relates to a water purifier with filter core convenient to replace, as shown in the drawings, including casing 1, cover 2, outer shell 3, filter core 4, lid 5, spline guide rod 6, guide sleeve 7, worm wheel 8, motor 9 and worm 10, casing 1 top is provided with cover 2, cover 2 covers casing 1, and the whole is a square, the bottom of cover 2 is connected with second guide rod 16, the top of casing 1 is provided with guide hole 17, which is slidably connected with second guide rod 16, the depth of guide hole 17 is one fourth of the height of casing 1, three outer shells 3 are arranged in casing 1, and the three outer shells 3 are connected through pipelines, filter core 4 is arranged in each outer shell 3, lid 5 is threadedly arranged on the top of outer shell 3, spline guide rod 6 is vertically arranged on the top of lid 5, guide sleeve 7 is embedded in cover 2, cover 2 is rotatably connected with guide sleeve 7, sliding groove is arranged in the middle of guide sleeve 7, spline guide rod 6 is slidably connected with guide sleeve 7 through the sliding groove, the upper end of spline guide rod 6 is provided with protruding part (not shown in the drawing), which prevents spline guide rod 6 from sliding downward from guide sleeve 7, worm wheel 8 is connected with the top of guide sleeve 7, worm wheel 8 is located above cover 2, motor 9 is arranged on the top of cover 2, worm 10 is connected with the output shaft of motor 9, worm 10 is engaged with worm wheel 8, and the materials of worm wheel 8, worm 10, spline guide rod 6 and guide sleeve 7 are plastic, spring 15 is arranged on both sides of the top of casing 1, recesses are arranged on the bottom of casing 1 and cover 2, spring 15 is arranged in the recesses, top cover 21 is connected with the top of cover 2, and the top cover 21 wraps worm wheel 8, motor 9 and worm 10, square insertion hole 18 is arranged on the bottom of second guide rod 16, limiting rod 19 is slidably arranged on casing 1 and matched with insertion hole 18, limiting rod 19 is U-shaped and made of stainless steel, button 20 is arranged on casing 1 and located in the insertion direction of limiting rod 19, and button 20 is electrically connected with motor 9.

[0024] When the filter core 4 needs to be replaced, first, the motor 9 is started to drive the worm 10 to rotate, the worm 10 drives the worm wheel 8 to rotate, the worm wheel 8 drives the guide sleeve 7 to rotate, the guide sleeve 7 drives the spline guide rod 6 to rotate, and the spline guide rod 6 drives the cover 5 to rotate. Since the cover 5 is threadedly connected to the shell 3, the cover 5 will move upward and be opened when it rotates, and the spline guide rod 6 moves in the guide sleeve 7. Then, the limiting rod 19 is pulled out of the machine shell 1, so that it is separated from the insertion hole 18 at the bottom of the second guide rod 16. Under the action of the spring 15, the machine cover 2 is popped up, and the machine cover 2 is opened upward. The second guide rod 16 is moved out of the guide hole 17, and then the old filter core 4 is taken out and replaced with a new filter core 4. The machine cover 2 is re-covered on the machine shell 1, the machine cover 2 is pressed down, the spring 15 is compressed, the second guide rod 16 is inserted back into the guide hole 17, the limiting rod 19 is inserted back into the insertion hole 18 to fix the second guide rod 16, the machine cover 2 is fixed on the machine shell 1, the cover 5 is covered on the shell 3, and the motor 9 is started in reverse to drive the worm 10 to rotate, the worm 10 drives the worm wheel 8 to rotate, and the worm wheel 8 drives the spline guide rod 6 to rotate through the guide sleeve 7. The cover 5 is rotated and re-covered on the shell 3. When the machine cover 2 is covered on the machine shell 1, the spring 15 is in a compressed state, providing an upward thrust to the machine cover 2 and the second guide rod 16. The second guide rod 16 pushes the limiting rod 19 upward to prevent the limiting rod 19 from slipping outwards. When the limiting rod 19 is completely inserted into the machine shell 1, the limiting rod 19 contacts the button 20, and the power supply of the motor 9 is turned off to avoid the motor 9 from being started due to accidental touch of the switch.

[0025] As shown in Figure 4 , it further comprises a pressure plate 11, a first guide rod 12, a compression spring 13, and a ball 14. The first guide rod 12 is slidably connected to the machine cover 2, the bottom of the first guide rod 12 is connected to the pressure plate 11, the pressure plate 11 and the machine cover 2 are connected by the compression spring 13, and the bottom of the pressure plate 11 is rotatably connected to the ball 14.

[0026] After the cover 5 is covered on the shell 3, in order to provide a downward pressure to the cover 5 and make the threads on the cover 5 match the threads on the shell 3, the pressure plate 11, the first guide rod 12, and the compression spring 13 are provided. When the machine cover 2 is covered on the top of the machine shell 1, the compression spring 13 pushes the pressure plate 11 downward, and the pressure plate 11 exerts a downward pressure on the cover 5 to help the threads on the cover 5 quickly match the threads on the shell 3, improving the closing efficiency. When the motor 9 drives the cover 5 to open, the cover 5 rises and pushes the first guide rod 12 upward through the pressure plate 11, and at this time the compression spring 13 is compressed. In addition, the bottom of the pressure plate 11 is provided with the ball 14 to avoid direct friction between the pressure plate 11 and the cover 5.

[0027] The above embodiments are provided for those skilled in the art to implement or use the present application, and those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present application, and therefore the protection scope of the present application is not limited by the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A water purifier with an easy-to-replace filter element, comprising a housing, a cover, an outer shell, a filter element, and a cap, wherein the cover is mounted on the top of the housing, the outer shell is disposed inside the housing, the filter element is disposed inside the outer shell, and the cap is threaded onto the top of the outer shell, characterized in that... The machine cover bottom is connected with a second guide rod, the machine shell top is provided with a guide hole in sliding fit with the second guide rod, the cover top is provided with the spline guide rod, the machine cover is rotatably connected with the guide sleeve, the spline guide rod is in sliding connection with the guide sleeve, the guide sleeve top is connected with the worm gear, the machine cover top is mounted with the motor, the motor output shaft is connected with the worm, and the worm and the worm gear are engaged.

2. The water purifier of claim 1, wherein the filter cartridge is replaced by removing the filter cartridge from the filter cartridge housing. The machine cover is slidably connected with the first guide rod, the first guide rod bottom is connected with the pressure plate, and the pressure plate is connected with the machine cover through the compression spring.

3. A water purifier with an easy-to-replace filter element according to claim 2, characterized in that, The pressure plate bottom is rotatably connected with the ball.

4. The water purifier of claim 1, wherein the filter cartridge is replaced by removing the filter cartridge from the filter cartridge housing. The machine shell top is connected with the spring on both sides.

5. A water purifier with an easy-to-replace filter element according to claim 1, characterized in that, The machine cover top is connected with the top cover, and the worm gear, the motor and the worm are wrapped in the top cover.

6. The water purifier of claim 1, wherein the filter cartridge is replaced by removing the filter cartridge from the filter cartridge housing. The second guide rod bottom is provided with a bushing, and the machine shell is slidably provided with a limiting rod matched with the bushing.

7. The water purifier of claim 6, wherein the filter cartridge is replaced by removing the filter cartridge from the filter cartridge housing. The machine shell is provided with the button, and the button is electrically connected with the motor.

8. The water purifier of claim 4, wherein the filter cartridge is replaced by removing the filter cartridge from the filter cartridge housing. The machine shell and the machine cover bottom are provided with grooves, and the spring is located in the grooves.

9. The water purifier of claim 6, wherein the filter is replaced by removing the filter from the filter housing. The limiting rod is U-shaped and made of stainless steel.

10. The water purifier of claim 1, wherein the filter is replaced by removing the filter from the filter housing. The worm gear, the worm, the spline guide rod and the guide sleeve are made of plastic.

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