Novel pre-filter convenient to disassemble and assemble

Abstract

The novel pre-filter convenient to disassemble and assemble comprises a water inlet part, a filtering part and a stroke mechanism, the water inlet part is provided with a water inlet, a water outlet and a filtering outlet; the filtering part is arranged below the water inlet part and comprises a filtering cup and a cup holder, the top of the filtering cup is communicated with the filtering outlet, and the cup holder sleeves the bottom of the filtering cup; the stroke mechanism comprises a fixed shell, a bottom support assembly and a handle, the fixed shell is arranged outside the water inlet part, and a guide block is arranged between the fixed shell and the water inlet part; the bottom support assembly comprises a filter cup mounting part, and the filter cup is arranged in the filter cup mounting part; the rear ends of the guide grooves extend upwards to form linkage supports, and the top ends of the linkage supports are provided with support connecting ends; a handle connecting end is arranged at the upper end of the handle, the handle connecting end is rotationally connected with the bracket connecting end, a toggle arm is further arranged between the handle and the linkage bracket, one end of the toggle arm is rotationally connected with the handle, and the other end of the toggle arm is rotationally connected with the side wall of the water inlet part above the water inlet or the water outlet.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a novel pre-filter which is convenient for disassembly and assembly. Background Art

[0002] After the existing pre-filter has been working for a long time, the impurities carried in the raw water are embedded in the mesh of the filter element, which easily causes the filter element to be blocked, so the filter element needs to be removed and replaced regularly. However, the replacement of the filter element in the existing pre-filter is relatively cumbersome, and the filter element needs to be removed from the inside of the pre-filter with tools. Therefore, a pre-filter that can facilitate the replacement of the filter element is a product urgently needed on the market. Utility Model Content

[0003] In order to solve the above existing problems, the utility model provides a novel pre-filter which is convenient for disassembly and assembly.

[0004] The utility model is achieved through the following technical solutions.

[0005] A novel pre-filter that is easy to disassemble and assemble comprises a water inlet, a filter and a travel mechanism; the left and right ends of the water inlet are respectively provided with a water inlet and a water outlet, the lower end of the water inlet is provided with a filter outlet, and the water inlet and the water outlet are both connected with the filter outlet; the filter is arranged below the water inlet, the filter comprises a filter cup and a cup holder, the top open end of the filter cup is connected with the filter outlet by snapping, and the bottom of the filter cup is sleeved with the cup holder; the travel mechanism is arranged outside the water inlet and the filter; the travel mechanism comprises a fixed shell, a bottom bracket assembly and a handle, the fixed shell is arranged between the water inlet and the filter A guide block is arranged between the fixed shell and the water inlet below the water outlet; the bottom support assembly includes a filter cup mounting portion, and the filter cup is arranged in the filter cup mounting portion; guide grooves are arranged at the left and right ends of the filter cup mounting portion corresponding to the guide blocks, and a linkage bracket is extended upward at the rear end of the guide groove, and a bracket connecting end is arranged at the top of the linkage bracket; a handle connecting end is arranged at the upper end of the handle, and the handle connecting end is rotatably connected to the bracket connecting end, and a toggle arm is also arranged between the handle and the linkage bracket, one end of the toggle arm is rotatably connected to the handle, and the other end of the toggle arm is rotatably connected to the side wall of the water inlet above the water inlet or the water outlet.

[0006] Furthermore, a filter cup mounting platform is provided at the bottom of the filter cup mounting portion, a filter cup slot is provided on the filter cup mounting platform from the front end to the middle, a filter cup block is provided at the bottom of the filter portion corresponding to the slot, and the filter cup block is embedded in the filter cup slot to fix the filter portion and the filter cup mounting platform.

[0007] Furthermore, the top of the filter cup block is fixedly connected to the center of the bottom of the filter cup, and a block through hole is provided at the bottom of the cup holder corresponding to the filter cup block. When the cup holder is sleeved outside the filter cup, the filter cup block passes through the block through hole.

[0008] Furthermore, the top end of the linkage bracket vertically extends forward to form a travel bracket connecting end.

[0009] Furthermore, a limit block is provided below the connecting end of the bracket corresponding to the side wall of the water inlet, and the cross-section of the limit block is a right-angled trapezoid, with its lower bottom facing the linkage bracket, its upper bottom facing the handle, and its hypotenuse facing the top of the water inlet.

[0010] Furthermore, the sum of the cross-sectional height of the limiting block and the width of the toggle arm is equal to the sum of the length of the bracket connecting end and the width of the handle connecting end.

[0011] Furthermore, a handle limiting protrusion is arranged at the front end of the water inlet portion, and a handle limiting device is arranged on the handle corresponding to the handle limiting protrusion.

[0012] Furthermore, the handle limiting device includes a symmetrically arranged limiting slider, the inner wall of the limiting slider is provided with a limiting slot corresponding to the handle limiting protrusion, and there is a gap between the lower parts of the two limiting sliders; the middle part of the limiting slider is rotatably connected to the handle, the top of the limiting slider is connected to the handle through a spring, and a pressing part is arranged on the outer side of the lower end of the limiting slider.

[0013] Furthermore, the handle is at least long enough to cover the water inlet and the filter.

[0014] The beneficial effects of the utility model are:

[0015] 1. The handle is supported and self-locked by the toggle arm, making it easy to use.

[0016] 2. The filter cup and the water inlet are connected and separated by pulling the handle to move the bottom support assembly up and down. After separation, the filter cup can be easily taken out for cleaning or replacement. After replacing the filter cup, press the handle to move the bottom support assembly up to complete the connection between the filter cup and the water inlet.

[0017] 3. The filter part and the filter cup mounting platform at the bottom of the base assembly are connected through a clamp block and a clamp slot, and the handle is pressed down to cover the filter part to prevent the filter cup from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an exploded view of the utility model;

[0020] Figure 3 It is a schematic diagram of the water inlet structure;

[0021] Figure 4 This is the front schematic diagram of the water inlet;

[0022] Figure 5 It is a schematic diagram of the structure of the filter part and the bottom bracket assembly;

[0023] Figure 6A schematic diagram of the handle structure.

[0024] In the figure, 1. water inlet; 2. linkage bracket; 3. bottom bracket assembly; 4. handle; 5. filter part; 6. water inlet; 7. water outlet; 8. filter cup; 9. cup holder; 10. filter cup mounting platform; 11. elbow arm; 12. limit card block; 13. handle limit convex point; 14. limit slider; 15. light slot; 16. hook; 17. card block; 18. fixed slot; 19. fixed shell; 20. guide block; 21. bracket connecting end; 22. guide slot; 23. filter cup card slot; 24. filter cup card block; 25. slider; 26. limit card slot; 27. spring; 28. pressing part; 29. ​​handle connecting end. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0029] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Embodiment 1, as Figure 1-Figure 6 As shown, a new type of pre-filter that is easy to disassemble and assemble comprises a water inlet 1, a filter 5 and a stroke mechanism; the left and right ends of the water inlet 1 are respectively provided with a water inlet 6 and a water outlet 7, and the lower end of the water inlet 1 is provided with a filter outlet, and the water inlet 6 and the water outlet 7 are both connected with the filter outlet; the filter 5 is arranged below the water inlet 1, and the filter 5 comprises a filter cup 8 and a cup holder 9, the top open end of the filter cup 8 is connected with the filter outlet by snapping, and the bottom of the filter cup 8 is sleeved with the cup holder 9; the stroke mechanism is arranged outside the water inlet 1 and the filter 5; the stroke mechanism comprises a fixed shell 19, a bottom support assembly 3 and a handle 4, and the fixed shell 19 is arranged at the water inlet 6 and the water outlet 7 Below, a guide block 20 is arranged between the fixed shell 19 and the water inlet part 1; the bottom bracket assembly 3 includes a filter cup mounting part, and the filter cup 8 is arranged in the filter cup mounting part; guide grooves 22 are arranged at the left and right ends of the filter cup mounting part corresponding to the guide blocks 20, and a linkage bracket 2 is extended upward at the rear end of the guide groove 22, and a bracket connecting end 21 is arranged at the top of the linkage bracket 2; a handle connecting end 29 is arranged at the upper end of the handle 4, and the handle connecting end 29 is rotatably connected to the bracket connecting end 21, and a toggle arm 11 is also arranged between the handle 4 and the linkage bracket 2, one end of the toggle arm 11 is rotatably connected to the handle 4, and the other end of the toggle arm 11 is rotatably connected to the side wall of the water inlet 1 above the water inlet 6 or the water outlet 7.

[0031] A filter cup mounting platform 10 is provided at the bottom of the filter cup mounting portion, and a filter cup slot 23 is provided on the filter cup mounting platform 10 from the front end to the middle, and a filter cup clamping block 24 is provided at the bottom of the filter portion 5 corresponding to the filter cup slot 23, and the filter cup clamping block 24 is embedded in the filter cup slot 23 to fix the filter portion 5 and the filter cup mounting platform 10.

[0032] The top of the filter cup block 24 is fixedly connected to the center of the bottom of the filter cup 8, and the bottom of the cup holder 9 is provided with a block through hole corresponding to the filter cup block 24. When the cup holder 9 is sleeved outside the filter cup 8, the filter cup block 24 passes through the block through hole. The top of the linkage bracket 2 vertically extends forward from the bracket connection end 21.

[0033] The side wall of the water inlet 1 is provided with a limit block 12 below the bracket connection end 21, and the cross section of the limit block 12 is a right-angle trapezoid, with its lower bottom facing the linkage bracket, its upper bottom facing the handle, and its hypotenuse facing the top of the water inlet 1. The sum of the cross-sectional height of the limit block 12 and the width of the toggle arm 11 is equal to the sum of the length of the bracket connection end 21 and the width of the handle connection end 29.

[0034] The front end of the water inlet 1 is provided with a handle limit convex point 13, and the handle 4 is provided with a handle limit device corresponding to the handle limit convex point 13. The handle limit device includes a symmetrically arranged limit slider 14, and the inner wall of the limit slider 14 is provided with a limit slot 26 corresponding to the handle limit convex point 13, and there is a gap between the lower parts of the two limit sliders 14; the middle part of the limit slider 14 is rotatably connected to the handle 4, the top of the limit slider 14 is connected to the handle 4 through a spring, and a pressing part 28 is provided on the outer side of the lower end of the limit slider 14. The length of the handle 4 is at least sufficient to cover the water inlet 1 and the filter 5.

[0035] When in use, if the filter 5 needs to be disassembled, lift the handle 4. When the handle 4 is rotated upward, the toggle arm 11 is driven to rotate by the handle 4. At the same time, the connection end of the handle 4 drives the bracket connection end 21 to move downward, and the entire bottom bracket assembly 3 moves downward, thereby driving the filter 5 to leave the water inlet 1 until the filter 5 is completely separated from the water inlet 1. At this time, the filter cup 8 and the cup holder 9 are removed from the filter cup installation platform 10 to replace the filter element or repair the filter cup 8. When the filter 5 is maintained and needs to be reinstalled, the cup holder 9 is placed on the bottom of the filter cup 8, and the filter cup block 24 is inserted into the filter cup slot 23 to install the filter 5 on the filter cup installation platform 10. At this time, the handle 4 is pressed down, and the handle 4 drives the bottom bracket assembly 3 upward. When the handle 4 is rotated to the vertical direction, the filter 5 is tightly connected with the filter outlet of the water inlet 1. Before the handle 4 reaches the vertical state, the user presses the pressing portion 28 inward, and the top of the limit slider 14 expands outward. As the handle 4 continues to rotate downward, the handle limit protrusion 13 passes through the limit slot 26, and then the pressing portion 28 is released. The limit slider 14 is reset under the drive of the spring 27, and the limit slot 26 clamps and fixes the handle limit protrusion 13. When it needs to be opened, the pressing portion 28 is also pressed to make the limit slider 14 release the handle limit protrusion 13.

[0036] The utility model realizes the support and self-locking of the handle 4 through the toggle arm 11, which is convenient for the use of the handle 4. The filter cup 8 is connected and separated from the water inlet 1 by pulling the handle 4 up and down to move the bottom bracket assembly 3. After separation, it is convenient to take the filter cup 8 for cleaning or replacement. After replacing the filter cup 8, the handle 4 is pressed down to move the bottom bracket assembly 3 up to complete the connection and communication between the filter cup 8 and the water inlet 1. The filter part 5 is connected to the filter cup installation platform 10 at the bottom of the bottom bracket assembly 3 through the filter cup clamping block 24 and the filter cup clamping groove 23, and the handle 4 is pressed down to cover the filter part 5 to prevent the filter cup 8 from falling out.

[0037] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A new type of pre-filter that is easy to disassemble and assemble, characterized by: It includes a water inlet, a filter and a travel mechanism; the left and right ends of the water inlet are respectively provided with a water inlet and a water outlet, the lower end of the water inlet is provided with a filter outlet, and the water inlet and the water outlet are both connected with the filter outlet; the filter is arranged below the water inlet, the filter includes a filter cup and a cup holder, the top open end of the filter cup is connected with the filter outlet, and the bottom of the filter cup is sleeved with a cup holder; the travel mechanism is arranged outside the water inlet and the filter; the travel mechanism includes a fixed shell, a bottom bracket assembly and a handle, the fixed shell is arranged below the water inlet and the water outlet, the fixed shell is fixed to the bottom of the filter cup, and the bottom bracket assembly is provided with a bottom bracket assembly. A guide block is arranged between the fixed shell and the water inlet; the bottom support assembly includes a filter cup mounting portion, and the filter cup is arranged in the filter cup mounting portion; guide grooves are arranged at the left and right ends of the filter cup mounting portion corresponding to the guide blocks, and a linkage bracket is extended upward at the rear end of the guide groove, and a bracket connecting end is arranged at the top of the linkage bracket; a handle connecting end is arranged at the upper end of the handle, and the handle connecting end is rotatably connected to the bracket connecting end, and a toggle arm is also arranged between the handle and the linkage bracket, one end of the toggle arm is rotatably connected to the handle, and the other end of the toggle arm is rotatably connected to the side wall of the water inlet above the water inlet or the water outlet.

2. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: A filter cup mounting platform is arranged at the bottom of the filter cup mounting part, and a filter cup slot is provided on the filter cup mounting platform from the front end to the middle part, and a filter cup block is arranged at the bottom of the filter part corresponding to the slot, and the filter cup block is embedded in the filter cup slot to fix the filter part and the filter cup mounting platform.

3. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 2, characterized in that: The top of the filter cup clamp is fixedly connected to the center of the bottom of the filter cup, and a clamp through hole is provided at the bottom of the cup holder corresponding to the filter cup clamp. When the cup holder is sleeved outside the filter cup, the filter cup clamp passes through the clamp through hole.

4. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The top end of the linkage bracket vertically extends forward to the travel bracket connecting end.

5. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 4, characterized in that: A limit block is arranged below the bracket connection end corresponding to the side wall of the water inlet, and the cross section of the limit block is a right-angled trapezoid, with its lower bottom facing the linkage bracket, its upper bottom facing the handle, and its hypotenuse facing the top of the water inlet.

6. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 5, characterized in that: The sum of the cross-sectional height of the position-limiting block and the width of the toggle arm is equal to the sum of the length of the bracket connecting end and the width of the handle connecting end.

7. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: A handle limiting convex point is arranged at the front end of the water inlet portion, and a handle limiting device is arranged on the handle corresponding to the handle limiting convex point.

8. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 7, characterized in that: The handle limit device includes a symmetrically arranged limit slider, and a limit slot is provided on the inner wall of the limit slider corresponding to the handle limit convex point, and there is a gap between the lower parts of the two limit sliders; the middle part of the limit slider is rotatably connected to the handle, the top of the limit slider is connected to the handle through a spring, and a pressing part is provided on the outer side of the lower end of the limit slider.

9. A novel pre-filter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The handle is at least long enough to cover the water inlet and the filter.

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