A quick-installation decorative panel made of SMC

Abstract

This invention discloses a quick-installation decorative panel made of SMC (Silicone Molding Compound), comprising a main mounting plate and two side mounting plates. The main mounting plate and two side mounting plates are installed around the adjacent edges of a shower tray, with the main mounting plate positioned between the two side mounting plates. An external support baffle is integrally formed on the edge of the shower tray to facilitate connection between the bottom ends of the main mounting plate and the side mounting plates. A wedge-shaped groove is formed on the front of the main mounting plate near the edge, and mounting blocks are integrally formed on the side mounting plates and inserted into the wedge-shaped groove. This invention provides a quick-installation decorative panel made of SMC that is high in strength, lightweight, mass-producible, easy to install (one worker can complete installation within one hour), and low in cost. Specifically, the decorative panel made of SMC is lightweight, low in cost, high in strength, and comes in various styles, allowing for the combination of different colors and designs.

Description

Technical Field

[0001] This invention relates to the field of shower tray accessories technology, and more specifically, to a quick-assembly decorative panel made of SMC. Background Technology

[0002] After the shower tray is installed against the wall, a decorative panel needs to be attached to the wall to surround it. This prevents water from seeping onto the wall and causing mold and efflorescence. Traditional decorative panels are made of marble. Marble is heavy, fragile, and difficult to install. It is also troublesome to replace later. In addition, marble is expensive. Summary of the Invention

[0003] To achieve the above objectives, this invention discloses a quick-assembly decorative panel made of SMC, comprising:

[0004] A main mounting plate and two side mounting plates are installed around the adjacent edges of the shower tray, with the main mounting plate located between the two side mounting plates. An external support baffle is integrally formed on the edge of the shower tray to facilitate the connection between the bottom of the main mounting plate and the bottom of the side mounting plates. A wedge-shaped groove is provided on the front of the main mounting plate near the edge, and an installation block is integrally formed on the side mounting plate and inserted into the wedge-shaped groove.

[0005] Preferably, both the bottom end of the main mounting plate near the back and the bottom end of the side mounting plate near the back are connected by screws with buckles, which are fixedly connected to the outer support baffle.

[0006] Preferably, the main mounting plate is composed of an upper back plate and a lower back plate spliced ​​together. The bottom end of the lower back plate is clipped onto the outer support baffle. A splicing groove is opened on the front of the lower back plate near the top. The bottom end of the upper back plate is spliced ​​onto the splicing groove. The splicing groove is coated with sealant.

[0007] Preferably, the top of the main mounting plate, the top of the side mounting plate, and the end of the side mounting plate away from the main mounting plate are all equipped with side mounting plates, and the side mounting plates are provided with openings to facilitate screw fixing.

[0008] Preferably, a niche is provided on the front of the upper back panel.

[0009] Preferably, a bottom mounting component is embedded in the front of the side mounting plate near the mounting block, and a bottom fixing round seat adapted to the bottom mounting component is installed in the front of the main mounting plate near the wedge-shaped slot. The bottom fixing round seat is connected to the front of the main mounting plate near the wedge-shaped slot via a connecting post. A locking plate is installed at the top of the bottom fixing round seat, and an air duct is connected to the top of the bottom mounting component. The air duct is embedded in the front of the side mounting plate, and a miniature fan connected to the air duct is installed in the front of the side mounting plate near the top.

[0010] Preferably, the bottom fixing seat and the connecting column are arranged coaxially.

[0011] Preferably, the bottom mounting assembly includes:

[0012] A bottom mounting base is embedded in the front of the side mounting plate near the mounting block, with the mounting block located above the bottom mounting base.

[0013] A fixed chamber is located within a bottom mounting base, and the air duct connects to the fixed chamber from the top of the bottom mounting base.

[0014] An insertion groove is provided at the side end of the bottom mounting base and communicates with the fixing chamber. The bottom fixing round base and the locking plate extend into the fixing chamber from the insertion groove.

[0015] A notched lock ring, the outer wall of which is rotatably mounted on the inner wall of a fixed chamber, with a lock plate extending into the lock ring through the notch.

[0016] Preferably, the bottom mounting assembly further includes:

[0017] The left purge chamber and the right purge chamber are connected and located between the left purge chamber and the right purge chamber. The left purge chamber is close to the front of the side mounting plate, and the right purge chamber is close to the back of the side mounting plate.

[0018] A side sliding groove is formed on the inner wall of the fixed chamber and connects to the left purge chamber;

[0019] A lever is slidably connected in a side groove. One end of the lever is connected to a locking ring, and the other end of the lever abuts against a lifting plate. A water-absorbing expansion component and a reset telescopic rod are connected between the bottom of the left blowing chamber and the lifting plate.

[0020] Multiple water passages are provided on the side of the bottom mounting base and connected to the left purge chamber. The water absorption expansion member is positioned close to the water passages.

[0021] Preferably, the bottom mounting assembly further includes:

[0022] An air outlet duct, which connects the right purge chamber and the fixed chamber;

[0023] Ventilation holes, a plurality of such ventilation holes are provided on the side end of the bottom mounting base away from the water inlet, and the ventilation holes are connected to the right purge chamber;

[0024] Air supply hole one and air supply hole two are provided on the lock ring. Air supply hole one is adapted to extend into the groove and air supply hole two is adapted to be provided as an air outlet channel.

[0025] A filter screen is installed on the inner wall of the right blow chamber and the ventilation holes are sealed. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a front perspective view of the present invention;

[0028] Figure 2 This is a schematic diagram of the installation of the wedge-shaped slot and mounting block of the present invention;

[0029] Figure 3 This is a schematic diagram showing the installation of the main mounting plate and side mounting plate of the present invention with the shower tray;

[0030] Figure 4 This is a schematic diagram of the shower tray structure of the present invention;

[0031] Figure 5 This is a perspective view of the rear side of the present invention;

[0032] Figure 6 This is a schematic diagram of the assembly of the bottom fixing round seat and the bottom mounting assembly of the present invention;

[0033] Figure 7 This is a view of the bottom mounting base of the present invention near the end extending into the groove;

[0034] Figure 8 Cross-sectional view of the bottom mounting assembly of the present invention Figure 1 (Water-absorbing and expanding parts in non-water-absorbing state);

[0035] Figure 9 Cross-sectional view of the bottom mounting assembly of the present invention Figure 2 (Water absorption and expansion state of the water-absorbing and expanding component)

[0036] In the diagram: 10. Main mounting plate; 11. Side mounting plate; 12. Shower tray; 13. External support baffle; 14. Wedge-shaped groove; 15. Mounting block; 16. Buckle; 17. Upper back plate; 18. Lower back plate; 19. Side mounting plate; 21. Niche; 22. Bottom mounting assembly; 23. Bottom fixing round seat; 24. Connecting column; 25. Locking plate; 26. Air duct; 27. Miniature fan; 28. Bottom mounting base; 29. ​​Fixing chamber; 20. Insertion groove; 31. Locking ring; 32. Notch; 33. Left purge chamber; 34. Right purge chamber; 35. Side sliding groove; 36. Lever; 37. Lifting plate; 38. Water absorption expansion component; 39. Reset telescopic rod; 30. Water passage; 41. Air outlet duct; 42. Ventilation hole; 43. Air supply hole one; 44. Air supply hole two. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example

[0039] The present invention will now be further described with reference to the accompanying drawings.

[0040] like Figures 1 to 9 As shown, this embodiment provides a quick-assembly decorative panel made of SMC, comprising:

[0041] A main mounting plate 10 and two side mounting plates 11 are installed on adjacent edges of a shower tray 12, with the main mounting plate 10 located between the two side mounting plates 11. An external support baffle 13 is integrally formed on the edge of the shower tray 12 to facilitate the connection between the bottom of the main mounting plate 10 and the bottom of the side mounting plates 11. A wedge-shaped groove 14 is provided on the front of the main mounting plate 10 near the edge. An installation block 15 is integrally formed on the side mounting plate 11 and inserted into the wedge-shaped groove 14.

[0042] The working principle and beneficial effects of the above technical solution are as follows:

[0043] This invention discloses a quick-installation decorative panel made of SMC (Silicone Molding Compound). A main mounting plate 10 and two side mounting plates 11 are installed around the adjacent edges of a shower tray 12. Both the main mounting plate 10 and the side mounting plates 11 are made of SMC material. The main mounting plate 10 and the side mounting plates 11 are connected by wedge-shaped grooves 14 and mounting blocks 15. The bottom ends of both the main mounting plate 10 and the side mounting plates 11 are installed on an outer support baffle 13. This invention provides a quick-installation decorative panel made of SMC that is high in strength, lightweight, mass-producible, easy to install (one worker can complete the installation within one hour), and low in cost. Specifically, the decorative panels made of SMC are lightweight, low-cost, high-strength, and come in a variety of styles, allowing for the combination of different colors and designs. The main mounting plate 10 and the side mounting plate 11 are connected by a wedge-shaped groove 14 and a mounting block 15, making disassembly and assembly convenient and easy to replace. The bottom ends of the main mounting plate 10 and the side mounting plate 11 are both mounted on the outer support baffle 13. The wedge-shaped groove 14 and the mounting block 15, as well as the main mounting plate 10 and the side mounting plate 11 and the outer support baffle 13, are sealed with glue to reduce the possibility of leakage.

[0044] In one embodiment, the bottom end of the main mounting plate 10 near the back and the bottom end of the side mounting plate 11 near the back are both connected to the buckle 16 by screws, and the buckle 16 is fixedly connected to the outer support baffle 13.

[0045] The beneficial effects of the above technical solution are as follows:

[0046] Both the main mounting plate 10 and the side mounting plate 11 are fastened to the outer support baffle 13 by the snap fasteners 16, ensuring that the bottom ends of the main mounting plate 10 and the side mounting plate 11 are installed flat and that there is no leakage.

[0047] In one embodiment, the main mounting plate 10 is composed of an upper back plate 17 and a lower back plate 18 spliced ​​together. The bottom end of the lower back plate 18 is fixed to the outer support baffle 13. A splicing groove is opened on the front of the lower back plate 18 near the top. The bottom end of the upper back plate 17 is spliced ​​onto the splicing groove. The splicing groove is coated with sealant.

[0048] The working principle and beneficial effects of the above technical solution are as follows:

[0049] During installation, the lower back panel 18 is fixed first, and the upper back panel 17 and the lower back panel 18 are then combined and fixed. When splicing the upper back panel 17 and the lower back panel 18, sealant is first applied to the lower back panel 18. In terms of structural design, a splicing groove is opened on the front of the lower back panel 18 near the top. The bottom end of the upper back panel 17 is spliced ​​into the splicing groove to ensure no leakage. The bottom end of the upper back panel 17 is inserted into the splicing groove. Before inserting it into the splicing groove, sealant is applied into the splicing groove for sealing treatment to ensure that there is no leakage at the joint during use.

[0050] Next, the side mounting plate 11 is spliced ​​with the main mounting plate 10 by the cooperation of the wedge-shaped slot 14 and the mounting block 15, and the side mounting plate 11 is fixed to the main wall.

[0051] In one embodiment, a side mounting plate 19 is installed on the top end of the main mounting plate 10, the top end of the side mounting plate 11, and the end of the side mounting plate 11 away from the main mounting plate 10. The side mounting plate 19 has openings for easy screw fixing.

[0052] The working principle and beneficial effects of the above technical solution are as follows:

[0053] Side mounting plates 19 are installed on the top of the main mounting plate 10, the top of the side mounting plate 11, and the end of the side mounting plate 11 away from the main mounting plate 10. The main mounting plate 10 and the side mounting plate 11 are fixed to the main wall using stainless steel screws. After all installations are completed, a second sealing process is performed. All joint connections are sealed with sealant. The side mounting plates 19 are fixed to the main wall using stainless steel screws.

[0054] In one embodiment, the upper back panel 17 has a niche 21 on its front side.

[0055] The beneficial effects of the above technical solution are as follows:

[0056] The niche 21 is designed to hold bath supplies.

[0057] In one example, a bottom mounting assembly 22 is embedded in the front of the side mounting plate 11 near the mounting block 15. A bottom fixing seat 23 adapted to the bottom mounting assembly 22 is installed in the front of the main mounting plate 10 near the wedge-shaped slot 14. The bottom fixing seat 23 is connected to the front of the main mounting plate 10 near the wedge-shaped slot 14 via a connecting post 24. A locking plate 25 is installed at the top of the bottom fixing seat 23. An air duct 26 is connected to the top of the bottom mounting assembly 22. The air duct 26 is embedded in the front of the side mounting plate 11. A miniature fan 27 connected to the air duct 26 is installed in the front of the side mounting plate 11 near the top.

[0058] The working principle and beneficial effects of the above technical solution are as follows:

[0059] When the side mounting plate 11 and the main mounting plate 10 are engaged with the mounting block 15 via the wedge-shaped groove 14, the bottom fixing round seat 23 located at the bottom end of the main mounting plate 10 preferentially engages with the bottom mounting component 22 located at the bottom end of the side mounting plate 11. Specifically, when the bottom end of the side mounting plate 11 is engaged in the outer support baffle 13, the side mounting plate 10 slides along the outer support baffle 13 toward the main mounting plate 10. The bottom fixing round seat 23 located at the bottom end of the main mounting plate 10 preferentially engages with the bottom mounting component 22 located at the bottom end of the side mounting plate 11. Then, the mounting block 15 on the side mounting plate 11 is engaged in the wedge-shaped groove 14, thus improving the stability of the connection between the two.

[0060] In one embodiment, the bottom fixing round seat 23 and the connecting column 24 are arranged coaxially.

[0061] In one embodiment, the bottom mounting assembly 22 includes:

[0062] A bottom mounting base 28 is embedded in the front of the side mounting plate 11 near the mounting block 15, with the mounting block 15 located above the bottom mounting base 28.

[0063] The fixed chamber 29 is located inside the bottom mounting base 28, and the air duct 26 connects to the fixed chamber 29 from the top of the bottom mounting base 28;

[0064] The insertion groove 20 is opened at the side end of the bottom mounting base 28 and communicates with the fixing chamber 29. The bottom fixing round base 23 and the locking plate 25 extend into the fixing chamber 29 from the insertion groove 20.

[0065] A locking ring 31 with a notch 32 is rotatably mounted on the inner wall of the fixing chamber 29, and a locking plate 25 extends into the locking ring 31 through the notch 32.

[0066] The working principle and beneficial effects of the above technical solution are as follows:

[0067] As the side mounting plate 10 slides along the outer support baffle 13 toward the main mounting plate 10, the bottom fixing round seat 23 at the bottom of the main mounting plate 10 drives the locking plate 25 to be sent into the fixing chamber 29 from the insertion groove 20. The locking plate 25 is sent into the locking ring 31 from the notch 32. At this time, stainless steel screws are used to fix the side mounting plate 19 to the main wall. In this way, the connection between the side mounting plate 11 and the main mounting plate 10 is completed, and the side mounting plate 11 is fixed to the main wall.

[0068] In one embodiment, the bottom mounting assembly 22 further includes:

[0069] Left purge chamber 33 and right purge chamber 34, the fixed chamber 29 is connected between the left purge chamber 33 and the right purge chamber 34, the left purge chamber 33 is close to the front of the side mounting plate 11, and the right purge chamber 34 is close to the back of the side mounting plate 11;

[0070] Side sliding groove 35, the side sliding groove 35 is formed on the inner wall of the fixed chamber 29 and communicates with the left purge chamber 33;

[0071] The lever 36 is slidably connected in the side slide groove 35. One end of the lever 36 is connected to the locking ring 31, and the other end of the lever 36 abuts against the lifting plate 37. The water absorption expansion member 38 and the reset telescopic rod 39 are connected between the bottom of the left blowing chamber 33 and the lifting plate 37.

[0072] Water passage holes 30, a plurality of water passage holes 30 are opened on the side end of the bottom mounting base 28 and connected to the left purge chamber 33, and the water absorption expansion member 38 is disposed near the water passage holes 30.

[0073] The working principle and beneficial effects of the above technical solution are as follows:

[0074] The left purge chamber 33 is attached to the main wall. With long-term use of the decorative panel, the sealant fails, and due to changes in hot and cold water, a gap appears at the connection between the side mounting plate 11 and the main mounting plate 10, causing water seepage. Water seeps into the main wall and is then sent into the left purge chamber 33 through the water inlet 30. After the water-absorbing expansion component 38 absorbs water and expands, it drives the lifting plate 37 to move in the extension direction of the reset telescopic rod 39. The lifting plate 37 presses the lever 36 and slides it in the side slide groove 35, thereby causing the locking ring 31 connected to the lever 36 to rotate counterclockwise in the fixed chamber 29. The notch 32 rotates to a position close to the side slide groove 35. In this way, the locking plate 25 is fixed in the locking ring 31, and because the notch 32 disengages from the insertion groove 20, the locking plate 25 and the bottom fixed round seat 23 are locked in the fixed chamber 29 and cannot be detached. At this time, the micro fan 27 works, sending air from the air duct 26 into the fixed chamber. Inside chamber 29, water is fed into the left purge chamber 33 through the notch 32 and the side sliding groove 35, and then blown onto the main wall surface through the water inlet 30 to accelerate the drying of the seepage. The water-absorbing expansion component 38 also shrinks and returns to its original shape after being blown. Because the air intake in the fixed chamber 29 and the left purge chamber 33 forms a positive pressure, the bottom mounting base 28 near the end of the extension groove 20 cannot be well attached to the main mounting plate 10. At this time, because the locking ring 31 fixes the locking plate 25 located inside it, the bottom fixed round seat 23 connected to the locking plate 25 cannot be separated from the extension groove 20. In this way, when the micro fan 27 finishes working and blowing away the seepage, the bottom mounting base 28 can still be well attached to the main mounting plate 10. There will be no gaps at the connection between the bottom end of the side mounting plate 11 and the bottom end of the main mounting plate 10. After the seepage dries, sealant is applied again at the connection between the bottom end of the side mounting plate 11 and the bottom end of the main mounting plate 10.

[0075] In one embodiment, the bottom mounting assembly 22 further includes:

[0076] Air outlet duct 41, which connects the right purge chamber 34 and the fixed chamber 29;

[0077] Ventilation holes 42, a plurality of ventilation holes 42 are provided on the side end of the bottom mounting base 28 away from the water passage hole 30, and the ventilation holes 42 are connected to the right purge chamber 34;

[0078] Air supply hole 1 43 and air supply hole 2 44 are provided on the locking ring 31. Air supply hole 1 43 is adapted to extend into the groove 20 and air supply hole 2 44 is adapted to the air outlet channel 41.

[0079] A filter screen is installed on the inner wall of the right purge chamber 34 and the ventilation holes 42 are sealed.

[0080] The working principle and beneficial effects of the above technical solution are as follows:

[0081] When the miniature fan 27 operates, it sends air from the air duct 26 into the fixed chamber 29, and from the notch 32 and the side sliding groove 35 into the left blowing chamber 33. At the same time, it sends air from the first air supply hole 43 into the extension groove 20, and from the second air supply hole 44 into the air outlet duct 41 and the right blowing chamber 34 connected to the air outlet duct 41. The air is then blown out from the ventilation hole 42. In this way, the air sent from the water passage hole 30 blows onto the main wall surface, the air sent from the ventilation hole 42 blows onto the front of the side mounting plate 11, and the air sent from the extension groove 20 blows onto the bottom mounting base 28 that is attached to the main mounting plate 10. This improves the efficiency of cleaning up water seepage.

[0082] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A quick-mounting spliced decorative panel made of SMC, characterized in that, Include: The main installation plate (10) and side installation plate (11), one main installation plate (10) and two side installation plates (11) form a closed installation in the adjacent edge end of shower basin (12), and the main installation plate (10) is located between the two side installation plates (11), the edge end of the shower basin (12) is integrally formed with the outer support baffle (13) for connecting the bottom end of the main installation plate (10) and the bottom end of the side installation plate (11), the front of the main installation plate (10) is provided with a wedge-shaped clamping groove (14) near the edge, and the side installation plate (11) is integrally formed with an installation clamping block (15) inserted into the wedge-shaped clamping groove (14); The bottom installation assembly (22) is embedded and installed on the front of the side installation plate (11) near the installation clamping block (15), the bottom fixing circular seat (23) matched with the bottom installation assembly (22) is installed on the front of the main installation plate (10) near the wedge-shaped clamping groove (14), the bottom fixing circular seat (23) is connected to the front of the main installation plate (10) near the wedge-shaped clamping groove (14) through the connecting column (24), the lock plate (25) is installed at the top end of the bottom fixing circular seat (23), the air duct (26) is communicated and installed at the top end of the bottom installation assembly (22), the air duct (26) is embedded and installed on the front of the side installation plate (11), and the micro fan (27) connected with the air duct (26) is installed on the front of the side installation plate (11) near the top end; The bottom installation assembly (22) comprises: a bottom mounting seat (28) embedded and installed on the front of the side installation plate (11) near the installation clamping block (15), the installation clamping block (15) is located above the bottom mounting seat (28), the fixing chamber (29) is located in the bottom mounting seat (28), the air duct (26) is communicated in the fixing chamber (29) from the top end of the bottom mounting seat (28), the extension slot (20) is opened in the side end of the bottom mounting seat (28) and communicated in the fixing chamber (29), the bottom fixing circular seat (23) and the lock plate (25) extend into the fixing chamber (29) from the extension slot (20), the lock ring (31) with notch (32) is rotatably installed on the inner wall of the fixing chamber (29), and the lock plate (25) extends into the lock ring (31) from the notch (32); The bottom mounting assembly (22) further comprises: a left purge chamber (33), a right purge chamber (34), the fixed chamber (29) is communicated between the left purge chamber (33) and the right purge chamber (34), the left purge chamber (33) is close to the front surface of the side mounting plate (11), the right purge chamber (34) is close to the back surface of the side mounting plate (11), a side sliding groove (35) is arranged on the inner wall of the fixed chamber (29) and is communicated in the left purge chamber (33), a push rod (36) is slidingly connected in the side sliding groove (35), one end of the push rod (36) is connected to the lock ring (31), the other end of the push rod (36) abuts against the lifting plate (37), a water absorption expansion piece (38) and a reset telescopic rod (39) are connected between the bottom of the left purge chamber (33) and the lifting plate (37), a plurality of water holes (30) are arranged at the side end of the bottom mounting seat (28) and are communicated in the left purge chamber (33), and the water absorption expansion piece (38) is arranged close to the water hole (30).

2. The SMC-made quick-mount splicing decorative plate according to claim 1, characterized in that, The bottom end close to the back surface of the main mounting plate (10) and the bottom end close to the back surface of the side mounting plate (11) are connected with buckles (16) through screws.

3. The SMC-made quick-mount splicing decorative plate according to claim 1, characterized in that, The main mounting plate (10) is composed of an upper back plate (17) and a lower back plate (18), the bottom end of the lower back plate (18) is clamped on the outer support baffle (13), a splicing groove is arranged on the front surface of the lower back plate (18) close to the top end, the bottom end of the upper back plate (17) is spliced on the splicing groove, and sealing glue is coated in the splicing groove.

4. The SMC-made quick-mount splicing decorative plate according to claim 1, characterized in that, The top end of the main mounting plate (10), the top end of the side mounting plate (11) and the end of the side mounting plate (11) away from the main mounting plate (10) are provided with edge mounting plates (19), and the edge mounting plates (19) are provided with openings for fixing screws.

5. The SMC-made quick-mount splicing decorative plate according to claim 3, characterized in that, A niche (21) is arranged on the front surface of the upper back plate (17).

6. The SMC-made quick-mount splicing decorative plate according to claim 1, characterized in that, The bottom fixing circular seat (23) and the connecting column (24) are coaxially arranged.

7. The SMC-made quick-mount splicing decorative plate according to claim 1, characterized in that, The bottom mounting assembly (22) further comprises: an air outlet channel (41) communicated between the right purge chamber (34) and the fixed chamber (29), a plurality of air vents (42) are arranged at the side end of the bottom mounting seat (28) away from the water hole (30), the air vents (42) are communicated in the right purge chamber (34), air inlet one (43) and air inlet two (44) are arranged on the lock ring (31), the air inlet one (43) is adapted to extend into the groove (20), the air inlet two (44) is adapted to extend into the air outlet channel (41), and a filter screen is arranged on the inner wall of the right purge chamber (34) and blocks the air vents (42).

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