Top shower capable of quickly replacing filter element

Abstract

The utility model discloses a top shower with a filter element capable of being quickly replaced, which is convenient for a user to quickly disassemble and replace the filter element in the top shower without disassembling the whole top shower, and is convenient to operate and high in efficiency. The top shower with the filter element capable of being rapidly replaced comprises an upper shell, a lower shell, the filter element, a sliding plug pin and an elastic piece. A plurality of rotation stopping grooves are formed in the upper end face of the lower shell. The peripheral surfaces of the upper end and the lower end of the filter element are rotationally clamped with the inner walls of the upper shell and the lower shell respectively; the sliding plug pin is in sliding fit in the lower end face of the upper shell in the axial direction of the upper shell. The elastic piece is arranged between the upper shell and the sliding plug pin and used for providing elastic force so that the sliding plug pin can be inserted into the rotation stopping groove. When a user pushes the sliding bolt, the sliding bolt is separated from the rotation stopping groove and compresses the elastic piece.

Description

Technical Field

[0001] This utility model belongs to the field of top spray technology, and specifically refers to a top spray with a quick-change filter element. Background Technology

[0002] Top sprays with filters can remove impurities from the water, ensuring the health of users' water supply.

[0003] In existing technology, overhead showers with filters typically include an upper shell, a lower shell, and a filter element installed between the upper and lower shells, with the upper and lower shells assembled via a threaded connection. Because overhead showers are usually installed high up, above the user's head, overhead showers with filters on the market have the following drawbacks:

[0004] When the filter needs to be replaced, the upper and lower shells need to be rotated in opposite directions to disassemble them. If the upper shell is too high and cannot bear force, the entire top spray usually needs to be removed first when replacing the filter, which is troublesome. At the same time, the threaded connection means that the upper and lower shells need to be turned several times, which is time-consuming and laborious. Furthermore, the threaded connection has the risk of water leakage when it is not tightened, and it is also easy to separate and fall off when the top spray is switched. However, if it is tightened too much, it will make disassembly difficult. Utility Model Content

[0005] The main purpose of this invention is to provide a top spray with a quick-replaceable filter element, which solves the problems existing in the prior art, makes it convenient for users to quickly replace the filter element inside the top spray without having to remove the entire top spray, and is easy to operate and highly efficient.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A top spray with a quick-change filter element includes an upper shell, a lower shell, a filter element, a sliding pin, and an elastic element. The upper surface of the lower shell has several anti-rotation grooves. The upper and lower circumferential surfaces of the filter element are respectively rotatably engaged with the inner walls of the upper and lower shells. The sliding pin slides along the axial direction of the upper shell within the lower surface of the upper shell. The elastic element is disposed between the upper shell and the sliding pin, providing elastic force to allow the sliding pin to insert into the anti-rotation grooves. When the user pushes the sliding pin, it disengages from the anti-rotation grooves and compresses the elastic element.

[0008] The top spray with quick-change filter also includes a push button that slides onto the outer circumferential surface of the upper housing; the push button passes through the upper housing and is connected to the sliding pin.

[0009] Preferably, the push button is provided with a buckle, the sliding pin is provided with a buckle hole, and the buckle hook is engaged in the buckle hole.

[0010] Preferably, the inner wall of the upper shell is provided with a pair of guide flanges, and the guide flanges serve as a sliding groove for the sliding pin to slide and engage. The sliding groove extends downward to the lower end face of the upper shell, and the outer peripheral surface of the upper shell is provided with a sliding hole communicating with the sliding groove, and the buckle slides and engages in the sliding hole.

[0011] The filter element has an upper locking block and a lower locking block respectively on its upper and lower circumferential surfaces; the inner wall of the upper shell has an upper locking groove for the upper locking block to rotate and lock into place, and the inner wall of the lower shell has a lower locking groove for the lower locking block to rotate and lock into place.

[0012] Preferably, the side wall of the lower card slot is provided with a limiting groove, and the surface of the lower card block is provided with a limiting protrusion for the limiting groove to be inserted.

[0013] Preferably, a guide ramp is provided at the entrance of the lower slot.

[0014] The top spray with quick-replaceable filter element also includes a water outlet panel installed on the lower end face of the lower shell, and a water passage cavity is formed between the upper shell and the lower shell, with a water outlet hole provided at the bottom of the water passage cavity.

[0015] The top spray with quick-replaceable filter element also includes a ball head located at the water inlet end of the upper shell. The ball head is rotatably engaged with the upper shell and is limited by a nut.

[0016] Sealing rings are provided between the upper and lower circumferential surfaces of the filter element and the upper and lower shells.

[0017] After adopting the above technical solution, the present invention has the following technical effects:

[0018] The filter element of this invention uses a rotating snap-fit ​​method at both the upper and lower ends to assemble with the upper and lower shells respectively. When the sliding pin is inserted into the anti-rotation groove, the upper and lower shells cannot rotate relative to each other, thus achieving rotation limit and avoiding user misoperation. When the user needs to replace the filter element, he / she only needs to push the sliding pin upward to disengage it from the anti-rotation groove, and then rotate and remove the lower shell to replace the filter element. Compared with the existing threaded connection method, the operation is faster and more convenient. Attached Figure Description

[0019] Figure 1 This is a perspective view of a specific embodiment of the present utility model.

[0020] Figure 2 This is an exploded view of a specific embodiment of the present utility model.

[0021] Figure 3 This is a perspective view of the upper shell of a specific embodiment of the present utility model.

[0022] Figure 4This is a perspective view of the lower shell of a specific embodiment of the present utility model.

[0023] Figure 5 This is a cross-sectional view of the closed state according to a specific embodiment of the present invention.

[0024] Figure 6 This is a cross-sectional view of the open state of a specific embodiment of the present invention.

[0025] Explanation of icon numbers:

[0026] 1-Upper shell; 11-Guide flange; 12-Sliding hole; 13-Upper slot; 2-Lower shell; 21-Anti-rotation groove; 22-Lower slot; 221-Limiting groove; 23-Guide slope; 24-Water outlet hole; 3-Filter element; 31-Upper block; 32-Lower block; 321-Limiting protrusion; 4-Sliding pin; 41-Snap hole; 5-Elastic element; 6-Push button; 61-Snap; 7-Screw; 8-Water outlet panel; 9-Ball head; 10-Nut. Detailed Implementation

[0027] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0028] refer to Figure 1-6 As shown, this utility model discloses a top spray with a quick-replaceable filter element, including an upper shell 1, a lower shell 2, a filter element 3, a sliding pin 4, and an elastic element 5;

[0029] The upper end face of the lower shell 2 is provided with several anti-rotation grooves 21;

[0030] The upper and lower circumferential surfaces of the filter element 3 are respectively rotated and snapped into the inner walls of the upper shell 1 and the lower shell 2;

[0031] The sliding pin 4 slides along the axial direction of the upper shell 1 and is fitted into the lower end face of the upper shell 1;

[0032] The elastic element 5 is disposed between the upper shell 1 and the sliding pin 4 to provide elastic force so that the sliding pin 4 is inserted into the anti-rotation groove 21;

[0033] When the user pushes the sliding pin 4 upward, it disengages from the anti-rotation groove 21 and compresses the elastic element 5.

[0034] Through the above solution, the upper and lower ends of the filter element 3 of this utility model are assembled with the upper shell 1 and the lower shell 2 respectively by a rotating snap-fit ​​method. When the sliding pin 4 is inserted into the anti-rotation groove 21, the upper shell 1 and the lower shell 2 cannot rotate relative to each other, thereby achieving rotation limit and avoiding user misoperation; Reference Figure 6As shown, when the user needs to replace the filter element 3, he / she only needs to push the sliding pin 4 upward to disengage it from the anti-rotation groove 21, and then rotate and remove the lower shell 2 to replace the filter element 3. Compared with the existing threaded connection method, the operation is faster and more convenient.

[0035] The following are specific embodiments of the present invention.

[0036] This utility model also includes a push button 6 that slides on the outer periphery of the upper shell 1; the push button 6 passes through the upper shell 2 and is connected to the sliding pin 4; the elastic element 5 is a spring. Thus, the user can push the push button 6 to drive the sliding pin 4 to slide within the lower end surface of the upper shell 2.

[0037] Furthermore, the push button 6 is provided with a buckle 61, and the sliding pin 4 is provided with a buckle hole 41. The buckle 61 hooks into the buckle hole 41 to realize the connection between the push button 6 and the sliding pin 4.

[0038] Secondly, the inner wall of the upper shell 1 is provided with a pair of guide flanges 11, which together form a sliding groove for the sliding pin 4 to slide and engage. The sliding groove extends downward to the lower end face of the upper shell 1, and the outer peripheral surface of the upper shell 1 is provided with a sliding hole 12 communicating with the sliding groove. The buckle 61 is slidably engaged in the sliding hole 12. The guide flanges 11 provide sliding space for the hook of the buckle 61.

[0039] The filter element 3 is provided with an upper locking block 31 and a lower locking block 32 on its upper and lower circumferential surfaces, respectively; the inner wall of the upper shell 1 is provided with an upper locking groove 13 for the upper locking block 31 to rotate and lock, and the inner wall of the lower shell 2 is provided with a lower locking groove 22 for the lower locking block 32 to rotate and lock.

[0040] Furthermore, the side wall of the lower locking groove 22 is provided with a limiting groove 221, and the surface of the lower locking block 32 is provided with a limiting protrusion 321 for the limiting groove 221 to be inserted. Thus, after the filter element 3 is inserted into the lower shell 2, it is locked by the cooperation of the limiting groove 221 and the limiting protrusion 321. More force is required to unscrew the filter element 3 from the lower shell 2. Therefore, the fit between the filter element 3 and the lower shell 2 is tighter than the fit between the filter element 3 and the upper shell 1. When the user rotates the lower shell 2, the filter element 3 can be detached from the upper shell 2 together, making the disassembly operation safer.

[0041] Secondly, a guide ramp 23 is provided at the entrance of the lower card slot 22, making it easier for the lower card block 32 to enter the lower card slot 22.

[0042] Secondly, there are more than one of each of the above-mentioned upper slot 13, anti-rotation slot 21, and lower slot 22, and each groove structure is arranged at equal angles around the axis of the top spray.

[0043] This utility model also includes a water outlet panel 8 installed on the lower end face of the lower shell 2 by means of screws 7, etc. A water passage cavity is formed between the upper shell 1 and the lower shell 2, and a water outlet hole 24 is provided at the bottom of the water passage cavity.

[0044] This utility model also includes a ball head 9 disposed at the water inlet end of the upper shell 1. The ball head 9 is rotatably engaged with the upper shell 1 and is limited by a nut 10.

[0045] Sealing rings are provided between the upper and lower circumferential surfaces of the filter element 3 and the upper shell 1 and lower shell 2 to ensure leak-proof performance.

[0046] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A top spray with replaceable filter cartridge, characterized in that: it comprises an upper shell, a lower shell, a filter cartridge, a sliding latch and an elastic member; the upper end surface of the lower shell is provided with a plurality of rotation-stopping grooves; the upper and lower end circumferential surfaces of the filter cartridge are respectively rotationally connected with the inner walls of the upper shell and the lower shell; the sliding latch is axially slidably fitted in the lower end surface of the upper shell; the elastic member is arranged between the upper shell and the sliding latch to provide elastic force for inserting the sliding latch into the rotation-stopping grooves; and the sliding latch is separated from the rotation-stopping grooves and compresses the elastic member when a user pushes the sliding latch.

2. The top spray with replaceable filter cartridge according to claim 1, characterized in that: it further comprises a push button slidably fitted in the outer circumferential surface of the upper shell, and the push button penetrates into the upper shell and is connected with the sliding latch.

3. The top spray with replaceable filter cartridge according to claim 2, characterized in that: the push button is provided with a buckle, the sliding latch is provided with a buckle hole, and the buckle is hooked in the buckle hole.

4. The top spray with replaceable filter cartridge according to claim 3, characterized in that: the inner wall of the upper shell is provided with a pair of guide flanges, the guide flanges form a sliding groove for the sliding latch to slide, the sliding groove extends downward to the lower end surface of the upper shell, the outer circumferential surface of the upper shell is provided with a sliding hole communicating with the sliding groove, and the buckle is slidably fitted in the sliding hole.

5. The top spray with replaceable filter cartridge according to claim 1, characterized in that: the upper and lower end circumferential surfaces of the filter cartridge are respectively provided with an upper clamping block and a lower clamping block, the inner wall of the upper shell is provided with an upper clamping groove for the upper clamping block to rotationally connect, and the inner wall of the lower shell is provided with a lower clamping groove for the lower clamping block to rotationally connect.

6. The top spray with replaceable filter cartridge according to claim 5, characterized in that: the side wall of the lower clamping groove is provided with a limiting groove, and the surface of the lower clamping block is provided with a limiting protrusion for the limiting groove to embed.

7. The top spray with replaceable filter cartridge according to claim 6, characterized in that: the entrance of the lower clamping groove is provided with a guide inclined surface.

8. The top spray with replaceable filter cartridge according to claim 1, characterized in that: it further comprises a water outlet panel installed on the lower end surface of the lower shell, a water passing cavity is formed between the upper shell and the lower shell, and the bottom of the water passing cavity is provided with a water outlet hole.

9. The top spray with replaceable filter cartridge according to claim 1, characterized in that: it further comprises a ball head arranged at the water inlet end of the upper shell, the ball head is rotationally fitted with the upper shell and is limited by a nut.

10. The top spray with replaceable filter cartridge according to claim 1, characterized in that: a sealing ring is arranged between the upper and lower end circumferential surfaces of the filter cartridge and the upper shell and the lower shell. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Images