Self-cleaning spray rod device

Abstract

A self-cleaning spray rod device comprises a base and a spray rod connected to the base in a sliding mode and further comprises a cleaning piece, the cleaning piece is arranged at the front end of the base and is in interference fit with the outer surface of the spray rod, and a cleaning water outlet is further formed in the front end of the base. When the spraying rod moves back and forth, the cleaning piece removes dirt adhering to the outer surface of the spraying rod, meanwhile, water flowing out of the cleaning water outlet and water flow impact the surface of the spraying rod and the cleaning piece at the same time, the dirt on the surface of the spraying rod is softened, meanwhile, the dirt scraped by the cleaning piece is flushed out forwards, the cleaning effect of the surface of the spraying rod is improved, and meanwhile the cleaning degree of the cleaning piece is guaranteed. And dirt is prevented from adhering to the cleaning piece.

Description

Technical Field

[0001] The utility model relates to the technical field of spray bar self-cleaning devices, in particular to a self-cleaning spray bar device. Background Art

[0002] Currently, intelligent toilets are usually equipped with a spray bar for buttock washing and feminine washing functions. During use, there is a situation where dirt adheres to the outer surface of the spray bar. The existing self-cleaning mechanism discharges water through the water outlet holes close to the steel pipe and uses the water flow impact force to clean the outer surface of the spray bar. However, the cleaning effect relying solely on water flow impact is poor, and some dirt still adheres to the outer surface of the spray bar and cannot be washed away by the water flow, affecting the cleaning effect. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a self-cleaning spray bar device, aiming to solve the problem of dirt cleaning on the outer surface of the spray bar.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A self-cleaning spray bar device includes a base, a spray bar slidably connected to the base, and a driving device for driving the spray bar to reciprocate on the base. It further includes a cleaning member. The cleaning member is arranged at the front end of the base and is in interference fit with the outer surface of the spray bar; a cleaning water outlet is also provided at the front end of the base, and the water outlet direction of the cleaning water outlet faces the extending direction of the spray bar and is inclined downward towards the surface of the spray bar where the spray holes are provided.

[0006] Further, the cleaning member is detachably connected to the front end of the base, and the cleaning member is disassembled or installed at the front end of the base along the telescopic direction of the spray bar.

[0007] Further, the cleaning member includes a body. The body is provided with a through-channel for the reciprocating movement of the spray bar, and a decontamination mechanism is arranged on the inner side wall surface of the through-channel. The decontamination mechanism is in interference fit with the outer surface of the spray bar.

[0008] Further, one or more scraping sections made of rubber material are arranged on the inner side wall surface of the through-channel along the telescopic direction of the spray bar, and the scraping sections constitute the decontamination mechanism.

[0009] Further, one or more scraping protrusions are arranged at one end of the scraping section away from the body. The scraping protrusions are arranged in sequence along the telescopic direction of the spray bar, so that the scraping protrusions are in interference fit with the outer surface of the spray bar.

[0010] Further, the interference amount between the scraping protrusion and the outer surface of the spray bar is 0.15 mm - 1.30 mm.

[0011] Further, a dirt-brushing section made of plastic material is provided on the inner wall surface of the through-channel. The dirt-brushing section constitutes the dirt-removing mechanism. The dirt-brushing section includes a number of bristles, one end of which is connected to the body and the other end of which is in interference fit with the surface of the spray rod.

[0012] Further, the interference amount between the bristles and the outer surface of the spray rod is 0.10 mm - 1.30 mm.

[0013] Further, a connecting seat is provided at the front end of the base. One of the connecting seat and the cleaning member is provided with a first connecting portion, and the other is provided with a second connecting portion detachably connected to the first connecting portion.

[0014] Further, it further includes a self-cleaning head. The self-cleaning head is provided with the cleaning water outlet, and the connecting seat is provided with an installation position for installing the self-cleaning head. The beneficial effects of the present utility model are as follows:

[0015] 1. A self-cleaning spray rod device proposed by the present utility model includes a base and a spray rod slidably connected to the base. It further includes a cleaning member. The cleaning member is arranged at the front end of the base and is in interference fit with the outer surface of the spray rod. A cleaning water outlet is further provided at the front end of the base. When the spray rod moves back and forth, the cleaning member removes the dirt adhered to the outer surface of the spray rod. At the same time, the cleaning water outlet discharges water, and the water flow impacts the surface of the spray rod and the cleaning member simultaneously, softening the dirt on the surface of the spray rod and flushing the dirt scraped by the cleaning member forward, improving the cleaning effect of the surface of the spray rod and ensuring the cleanliness of the cleaning member itself, and preventing dirt from adhering to the cleaning member.

[0016] 2. A self-cleaning spray rod device proposed by the present utility model, compared with the prior art where the cleaning member is installed inside the base, the cleaning member is detachably installed or removed at the front end of the base along the telescopic direction of the spray rod, which is convenient for the user to replace the cleaning member without removing the cover plate, ensuring an appropriate interference amount between the cleaning member and the outer surface of the spray rod; at the same time, the cleaning member is arranged at the front end of the base, which is convenient for the user to directly wash it with water flow from the outside.

[0017] 3. A self-cleaning spray rod device proposed by the present utility model has various types of dirt-removing mechanisms, including a dirt-scraping section and a dirt-brushing section, to meet the diverse usage requirements of users.

[0018] 4. A self-cleaning spray rod device proposed by the present utility model, when the dirt-removing mechanism is a dirt-scraping section, the dirt-scraping sections are arranged in sequence along the telescopic direction of the spray rod, so that during one telescopic process of the spray rod, the dirt-scraping section performs multiple dirt-removing treatments on the outer surface of the spray rod, ensuring the cleaning effect of the outer surface of the spray rod.

[0019] 5. A self-cleaning spray bar device proposed by the present utility model, one end of the dirt scraping section away from the main body is provided with one or more dirt scraping protrusions, and the dirt scraping protrusions are arranged in sequence along the telescopic direction of the spray bar, so that during one telescopic process of the spray bar, the dirt scraping protrusions perform multiple dirt removal treatments on the outer surface of the spray bar, further ensuring the cleaning effect of the outer surface of the spray bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of a self-cleaning spray bar device of the present utility model in a retracted state;

[0022] Figure 2 Schematic diagram of a self-cleaning spray bar device of the present utility model in an extended state;

[0023] Figure 3 Exploded view of a self-cleaning spray bar device of the present utility model;

[0024] Figure 4 Schematic diagram of the water outlet direction of the cleaning port of a self-cleaning spray bar device of the present utility model;

[0025] Figure 5 Schematic diagram of the installation of the cleaning part of a self-cleaning spray bar device of the present utility model;

[0026] Figure 6 Another schematic diagram of the installation of the cleaning part of a self-cleaning spray bar device of the present utility model;

[0027] Figure 7 Schematic diagram of the cleaning part with a dirt scraping section of a self-cleaning spray bar device of the present utility model;

[0028] Figure 8 Schematic diagram of the interference amount of the dirt scraping section of a self-cleaning spray bar device of the present utility model;

[0029] Figure 9 Schematic diagram of the cleaning part with a dirt brushing section of a self-cleaning spray bar device of the present utility model;

[0030] Figure 10 Schematic diagram of the interference amount of the dirt brushing section of a self-cleaning spray bar device of the present utility model;

[0031] In the figure, 10 is the base; 101 is the connecting seat; 1011 is the installation position; 20 is the spray bar; 301 is the motor; 302 is the large gear; 303 is the double gear; 304 is the synchronous belt; 40 is the cleaning member; 401 is the main body; 50 is the dirt scraping section; 501 is the dirt scraping protrusion; 60 is the dirt brushing section; 601 is the base; 602 is the bristles; 70 is the self-cleaning head; 701 is the cleaning water outlet; 801 is the first connecting portion; 802 is the second connecting portion. Detailed implementation manner

[0032] The following will be combined with Figure 1-8 to describe this embodiment in detail.

[0033] A self-cleaning spray bar device includes a base 10, a spray bar 20 slidably connected to the base 10, and a driving device for driving the spray bar 20 to reciprocate on the base 10. It also includes a cleaning member 40. The cleaning member 40 is arranged at the front end of the base 10, and the cleaning member 40 is in interference fit with the outer surface of the spray bar 20. A cleaning water outlet 701 is also provided at the front end of the base 10. The water outlet direction of the cleaning water outlet 701 is towards the extending direction of the spray bar 20 and obliquely downward towards the surface of the spray bar 20 where spray holes are provided.

[0034] During use, the spray bar 20 moves back and forth. The cleaning member 40 removes the dirt adhered to the outer surface of the spray bar 20. At the same time, the cleaning water outlet 701 discharges water, and the water flow impacts both the surface of the spray bar 20 and the cleaning member 40, softening the dirt on the surface of the spray bar 20. At the same time, the dirt scraped by the cleaning member 40 is washed forward, improving the cleaning effect of the surface of the spray bar 20, and at the same time ensuring the self-cleaning degree of the cleaning member 40 to prevent dirt from adhering to the cleaning member 40.

[0035] In this embodiment, the cleaning member 40 includes a main body 401. The main body 401 is provided with a through-channel for the reciprocating movement of the spray bar 20. The inner side wall surface of the through-channel is provided with a dirt removal mechanism, and the dirt removal mechanism is in interference fit with the outer surface of the spray bar 20. The inner side wall surface of the through-channel is provided with a dirt scraping section 50 made of rubber material. The dirt scraping section 50 constitutes the dirt removal mechanism. During the movement of the spray bar 20, the dirt scraping section 50 scrapes the dirt adhered to the surface of the spray bar 20. To ensure the dirt scraping effect, the number of dirt scraping sections 50 or the setting method of the dirt scraping section 50 can be appropriately increased, such as Figure 7 (A) shows the cleaning member 40 with one dirt scraping section 50. The dirt scraping section 50 performs a dirt scraping treatment on the spray bar 20 during the extending process and the retracting process respectively; Figure 7 (B) shows the cleaning member 40 with two dirt scraping sections 50. The two dirt scraping sections 50 are arranged along the telescopic direction of the spray bar 20. The dirt scraping section 50 performs two dirt scraping treatments on the spray bar 20 during the extending process and the retracting process respectively, improving the dirt scraping effect; Figure 7(C) shows a cleaning member 40 having two scraping sections 50, but each of the two scraping sections 50 is composed of a plurality of scraping sub-sections, and each scraping sub-section performs a zoned scraping treatment on the surface of the spray bar 20.

[0036] In this embodiment, a scraping protrusion 501 is provided at one end of the scraping section 50 away from the main body 401, and the scraping protrusion 501 is in interference fit with the outer surface of the spray bar 20. Different cross-sections of the scraping protrusion 501 have different scraping effects, such as Figure 8 (A-1) and Figure 8 (A-2) respectively show scraping protrusions 501 with double-sided chamfers and single-sided chamfers, Figure 8 (B-1) and Figure 8 (B-2) respectively show scraping protrusions 501 with double-sided rounded corners and single-sided rounded corners, Figure 8 (C-1) and Figure 8 (C-2) respectively show scraping protrusions 501 with bilateral formation and multi-sided forms, Figure 8 (D-1) and Figure 8 (D-2) respectively show scraping protrusions 501 with a middle groove and double triangles, and Figure 8 (E-1) and Figure 8 (E-2) respectively show scraping protrusions 501 with multi-rounded corners and single-rounded corners. The cross-sectional forms of the scraping protrusions 501 include but are not limited to as Figure 8 shown. Those skilled in the art can design other styles of scraping protrusions 501 based on Figure 8 the disclosed styles.

[0037] In this embodiment, for the scraping section 50 made of rubber material, the problem of structural wear after a certain number of uses needs to be considered. When the wear reaches a certain level, the fitting method between the scraping section 50 and the surface of the spray bar 20 changes from interference fit to clearance fit, and at this time, the scraping function will be lost. Therefore, rubber materials with different hardnesses are considered. The range of the interference amount A between the scraping protrusion 501 and the surface of the spray bar 20 is as Figure 8 (A-1) shown, Figure 8 and so on for other drawings in

[0038] that is, 0.15 mm ≤ A ≤ 1.3 mm. Further, the rubber materials include silica gel, EPDM, NBR, etc.

[0039] In this embodiment, the cleaning member 40 is detachably connected to the front end of the base 10, and the cleaning member 40 is detached or installed at the front end of the base 10 along the telescopic direction of the spray bar 20. Specifically, a connection seat 101 is provided at the front end of the base 10. The connection seat 101 can be integrally formed with the base 10 or detachably connected to the base 10. One of the connection seat 101 and the cleaning member 40 is provided with a first connection portion 801, and the other is provided with a second connection portion 802 detachably connected to the first connection portion 801.

[0039] Specifically, as shown in Figure 5 , a plug-in groove is provided at the front end of the connecting seat 101, and a plug-in protrusion detachably clamped with the plug-in groove is provided on one side of the main body 401 of the cleaning member 40 facing the connecting seat 101, wherein the plug-in protrusion constitutes the first connecting portion 801, and the plug-in groove constitutes the second connecting portion 802. In other embodiments, as shown in Figure 6 , a cantilever protruding outward is provided on the outer side of the main body 401 of the cleaning member 40, a card slot is provided on the cantilever, and a protrusion detachably clamped with the card slot is provided at the front end of the connecting seat 101, wherein the card slot constitutes the first connecting portion 801, and the protrusion constitutes the second connecting portion 802. Therefore, compared with the prior art in which the cleaning member 40 is installed inside the base 10, the cleaning member 40 installed at the front end of the base 10 is convenient for the user to replace the cleaning member 40 without removing the cover plate, ensuring that an appropriate interference fit is maintained between the cleaning member 40 and the outer surface of the spray rod 20; at the same time, the cleaning member 40 is arranged at the front end of the base 10, facilitating the user to directly wash it with water flow from the outside.

[0040] In this embodiment, as shown in Figure 3 , a self-cleaning head 70 is further included. The self-cleaning head 70 is provided with a cleaning water outlet 701, and an installation position 1011 for installing the self-cleaning head 70 is provided at the top of the connecting seat 101. The self-cleaning head 70 is further provided with a water inlet, the water inlet is communicated with the cleaning water outlet 701, and the water inlet is communicated with a water supply source through a hose.

[0041] In this embodiment, as shown in Figure 3 , the driving device includes a motor 301. The motor 301 is installed on the base 10, and the rotating shaft of the motor 301 is drivingly connected to the spray rod 20 through a transmission device, so as to drive the spray rod 20 to move back and forth. The transmission device includes a large gear 302 installed on the rotating shaft of the motor 301, a double gear 303 rotatably connected to the seat body, and a synchronous belt 304. The double gear 303 has a first gear and a second gear coaxially arranged, and the pitch circle diameter of the first gear is larger than the pitch circle diameter of the second gear. The synchronous belt 304 is drivingly sleeved on the large gear 302 and the second gear, and a tooth portion meshing with the first gear is provided on one side of the spray rod 20 facing the double gear 303. Specifically, when the motor 301 rotates, it drives the large gear 302 to rotate, thereby driving the double gear 303 to rotate through the synchronous belt 304, and further driving the spray rod 20 to move through the double gear 303. When the motor 301 rotates forward, the spray rod 20 extends forward, and when the motor 301 rotates backward, the spray rod 20 retracts backward.

[0042] In this embodiment, the spray rod 20 is slidably connected to the base 10 through a guide rail pair. Specifically, guide grooves are provided on both sides of the spray rod 20, and guide rails adapted to the guide grooves are provided on the base 10 to ensure that the spray rod 20 moves back and forth along the guide rails.

[0043] Embodiment 2

[0044] Next, in combination withFigure 9-10 A detailed description of this embodiment will be given.

[0045] The difference between this embodiment and the first embodiment is that a brushing section 60 made of plastic material is provided on the inner wall surface of the through-channel. The brushing section 60 constitutes a decontamination mechanism, and the plastic material includes PA nylon, PP, PBT, PLA, etc. Specifically, the brushing section 60 includes a base 601 provided on the inner wall surface of the through-channel. A number of bristles 602 are provided on the side of the base 601 away from the inner wall surface of the through-channel. One end of the bristle 602 away from the base 601 is in interference fit with the surface of the spray bar 20. After a certain number of uses, the cooperation mode between the brushing section 60 and the surface of the spray bar 20 changes from interference fit to clearance fit, and at this time the scraping function will be lost. Therefore, the interference amount B between the bristle 602 and the surface of the spray bar 20 is as Figure 9 shown, that is, 0.10 mm ≤ B ≤ 1.3 mm.

[0046] The above embodiments are only for illustrating the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A self-cleaning spray bar device, comprising a base, a spray bar slidably connected to the base, and a driving device for driving the spray bar to reciprocate on the base, characterized in that: It also includes a cleaning piece, which is arranged at the front end of the base and is interference fit in the outer surface of the spray rod; the front end of the base is also provided with a cleaning water outlet, the water outlet direction of the cleaning water outlet is toward the extension direction of the spray rod, and is inclined downward toward the surface of the spray rod where the spray hole is provided.

2. A self-cleaning spray bar device as claimed in claim 1, characterized in that: The cleaning member is detachably connected to the front end of the base, and the cleaning member is detachable or installed at the front end of the base along the telescopic direction of the spray rod.

3. A self-cleaning spray bar device according to claim 1 or 2, characterized in that: The cleaning member comprises a body, the body is provided with a passage for the reciprocating movement of the spray rod, the inner wall surface of the passage is provided with a dirt removal mechanism, and the dirt removal mechanism is interference fit to the outer surface of the spray rod.

4. A self-cleaning spray bar device as claimed in claim 3, characterized in that: One or more scraping sections made of rubber material are provided on the inner wall surface of the travel channel along the telescopic direction of the spray rod, and the scraping sections constitute the dirt removal mechanism.

5. A self-cleaning spray bar device as claimed in claim 4, characterized in that: One or more scraping convex parts are arranged at one end of the scraping section away from the main body, and the scraping convex parts are arranged in sequence along the telescopic direction of the spray rod, so that the scraping convex parts are interference-fitted with the outer surface of the spray rod.

6. A self-cleaning spray bar device as claimed in claim 5, characterized in that: The interference between the scraping protrusion and the outer surface of the spray rod is 0.15mm-1.30mm.

7. A self-cleaning spray bar device as claimed in claim 3, characterized in that: The inner wall surface of the passage is provided with a dirt brushing section made of plastic material, which constitutes the dirt removal mechanism. The dirt brushing section includes a plurality of bristles, one end of which is connected to the body and the other end is interference fit to the surface of the spray rod.

8. A self-cleaning spray bar device as claimed in claim 7, characterized in that: The interference between the bristles and the outer surface of the spray rod is 0.10mm-1.30mm.

9. A self-cleaning spray bar device as claimed in claim 2, characterized in that: A connecting seat is provided at the front end of the base, one of the connecting seat and the cleaning member is provided with a first connecting portion, and the other is provided with a second connecting portion detachably connected to the first connecting portion.

10. A self-cleaning spray bar device according to claim 9, characterized in that: It also includes a self-cleaning head, which is provided with the cleaning water outlet, and the connecting seat is provided with a mounting position for mounting the self-cleaning head.

Images