Film covering method of disposable film covering bathtub and film covering bathtub adopting method

Abstract

The method comprises the steps that hanging holes in the two sides of a film body are aligned with hooks on the two sides of a bathtub body respectively and sleeved with the hooks, and then the edge of the film body is adjusted to be aligned with the edge of a bathtub opening of the bathtub body; the film body is straightened, the edge of the film body and the adhesive tape are bonded to wrap the top of the bathtub body, and an intermediate product is obtained; the air pump connector is connected with the external connector, the air pump is started, air pumping is started, the air pressure in the bathtub body is reduced, the film body is gradually adsorbed to the bathtub body through deformation under the action of atmospheric pressure till the film body is tightly attached to the bathtub body, and the disposable film-coated bathtub is obtained. The film body is not prone to displacement in the using process, water leakage is avoided, and the hygiene protection performance is remarkably improved; in addition, film covering can be rapidly achieved, so that film body replacement can be completed in a short time, and the film covering device is suitable for occasions such as confinement clubs which have extremely high requirements for sanitation and are high in use frequency.

Description

TECHNICAL FIELD

[0001] The present application relates to a bathtub, in particular to a film covering method of a disposable film-covered bathtub and a film-covered bathtub obtained by using the method. BACKGROUND

[0002] With the popularization of the concept of "big health", the public's demand for health and safety continues to upgrade, especially in public and special service places such as hotels, hot spring inns, beauty salons, and postpartum care centers, the sanitary condition of bathroom facilities has become one of the core factors for consumers to choose. According to the "China Bathroom Industry Development Report", the proportion of cross-contamination complaints in domestic public bathrooms reaches 18%, and the proportion of complaints caused by incomplete cleaning of traditional fixed bathtubs exceeds 60%. The traditional manual cleaning method not only takes a long time, but also often has the problem of incomplete cleaning. Some bathtub products have added a disinfection module, but it is still difficult to eliminate bacterial residues in the gaps. Specifically, the problems of the traditional method include: (1) high cleaning cost; professional cleaning personnel and disinfectants need to be equipped, resulting in high operating costs; (2) high health risk; hair and bacteria (such as E. coli and Staphylococcus) are easily left in gaps such as the edge of the bathtub and the drain, and even after disinfection, it is difficult to completely remove them, posing a risk of cross-infection; (3) poor flexibility: unable to achieve rapid cleaning, not suitable for scenarios such as postpartum care centers that have very high hygiene requirements and high usage frequency.

[0003] In the current bathroom product field, disposable bathroom products can theoretically eliminate cross-contamination and are convenient to use, with a market demand growth rate of more than 25% per year. Disposable bathtub film (also known as disposable bathtub cover) is a disposable bathroom product designed for traditional bathtubs. However, the existing disposable bathtub film is prone to displacement and water leakage after installation due to the lack of anti-slip and precise positioning design, not only posing a health risk, but also providing a poor user experience. Specifically, the use of disposable bathtub film has the following problems: (1) the structure design is unreasonable, the plastic film cannot be fixed, and the film body is easily displaced with water flow during use, resulting in a poor user experience; (2) the film body is not comfortable after installation and is prone to water leakage, resulting in a failure of protection. SUMMARY

[0004] In order to overcome the above-mentioned problems in the prior art, the present application provides a film covering method of a disposable film-covered bathtub, and a film-covered bathtub obtained by using the method. By using a bathtub body and a film body with a specific structure, and using a specific method to cover the film body on the surface of the bathtub body, the film body is tightly attached to the bathtub body, is not easily displaced during use, significantly improves the user experience, and has no risk of water leakage, significantly improves the health protection capability, and can truly eliminate cross-infection. In addition, the present application can quickly realize film covering, so that the replacement of the plastic film body can be completed in a short time, which is suitable for scenarios such as postpartum care centers that have very high hygiene requirements and high usage frequency, and improves the operating efficiency.

[0005] Regarding the coating method, the technical solution of this application is as follows:

[0006] A method for applying a membrane to a disposable membrane bathtub involves applying a suitable membrane to the surface of the bathtub body to form a disposable membrane bathtub. The bottom of the bathtub body has a water outlet with a drain device installed at the outlet. The bathtub body is equipped with an air intake assembly, which includes a connected air intake port and an external interface. The air intake port is located on the inner wall of the bathtub body, and the external interface is located on the outer wall of the bathtub body. Two hooks and a rubber strip are symmetrically arranged on the outer edge of the bathtub body's opening. Correspondingly, the membrane has a pair of hanging holes for engaging with the hooks.

[0007] The method includes the following steps:

[0008] Step 1: Align the hanging holes on both sides of the membrane with the hooks on both sides of the bathtub body and insert them. Then adjust the edge of the membrane to align with the edge of the bathtub body.

[0009] Step 2: Straighten the membrane, then attach the edges of the membrane to the adhesive strip to cover the top of the bathtub body, thus obtaining an intermediate product;

[0010] Step 3: Connect the air pump connector to the external interface, turn on the air pump, and start pumping air. The air pressure inside the bathtub body will drop. Under the action of atmospheric pressure, the membrane will deform and gradually adhere to the bathtub body until the membrane is tightly attached to the bathtub body, thus obtaining a disposable membrane bathtub.

[0011] Compared with existing technologies, this invention features hooks and adhesive strips on the outer edge of the bathtub body's rim. Hanging holes are provided on the membrane corresponding to the hook positions. During the membrane application process, the hanging holes on both sides of the membrane are aligned with the hooks on both sides of the bathtub body and inserted. The edge of the membrane is then aligned with the edge of the bathtub body's rim to initially fix the membrane. The membrane is then straightened, and its edge is adhered to the adhesive strip, further securing it to the bathtub body and providing a seal. The space between the membrane and the inner side of the bathtub body forms a sealed chamber. An external air pump extracts the gas from this sealed chamber, causing the membrane to gradually deform and sink downwards under atmospheric pressure, ultimately adhering to the tub wall and completing the membrane application. Because the membrane is tightly bonded to the tub wall through vacuum adsorption, it is less prone to displacement during use, providing a better user experience and eliminating leakage issues, significantly improving hygiene and protection performance. Furthermore, this invention allows for rapid membrane application, enabling quick replacement of the plastic membrane, making it suitable for scenarios with extremely high hygiene requirements and high usage frequency, such as postpartum care centers, thus improving operational efficiency.

[0012] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0013] As preferred, before the first step is performed, the film covering method of the disposable film-covered bathtub further comprises a step of placing a non-slip pad at the bottom of the bathtub body. By arranging the non-slip pad, the safety of bathing can be improved. The non-slip pad is arranged between the film body and the bathtub body, and there is no infection problem. The non-slip pad can be repeatedly used, which is conducive to cost control. In addition, the non-slip pad also plays a role in further fixing the film body.

[0014] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0015] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0016] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0017] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0018] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0019] As preferred, the film covering method of the disposable film-covered bathtub further comprises a fourth step: after the film body completely covers the inner side wall of the bathtub body, the air pump connector is first removed, and then the air pump is turned off. After the air suction is completed, the air pump connector is first removed, and then the air pump is turned off, which can avoid the backflow of gas through the air pump gas path, thereby preventing the vacuum adsorption structure from being damaged.

[0020] For the bathtub, the technical solution of the present application is:

[0021] The film-coated bathtub adopts the film-coating method of the present application to realize film-coating. The film-coated bathtub obtained by using the film-coating method is time-saving and labor-saving in operation, and the film body and the bathtub body are stably combined, and displacement and water leakage are not easy to occur during use. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the bathtub body of the film-coated bathtub of the present application.

[0023] Figure 2 is a structural schematic view of the film-coated bathtub of the present application.

[0024] Figure 3 is a state schematic view (intermediate product) when the bathtub body is coated.

[0025] Figure 4 is a bottom view of the bathtub body of the film-coated bathtub of the present application.

[0026] The marks in the drawings are: 1-bathtub body; 11-inner cylinder body; 12-outer cylinder body; 2-water outlet; 3-air suction pipe assembly; 31-air suction port; 32-external interface; 33-ventilation pipe; 4-hanger; 5-film body; 6-rubber strip; 7-drainage device; 8-anti-skid pad. DETAILED DESCRIPTION

[0027] The technical solution of the present application will be further specifically described below by specific embodiments, and the drawings are combined, but it is not as the basis for limiting the present application. The contents not described in detail in the following embodiments are all technical common sense in the art or can be realized by using conventional technical means in the art.

[0028] The embodiments of the present application refer to Figures 1-4 .

[0029] In this embodiment, the bathtub body 1 has a water outlet 2 at the center position of the bottom, and a drainage device 7 is installed at the water outlet 2 for drainage. The bathtub body 1 includes an inner cylinder body 11 and an outer cylinder body 12, and the outer cylinder body 12 supports the inner cylinder body 11. The above settings are prior art.

[0030] Different from the prior art, the bathtub body 1 is additionally provided with an air suction pipe assembly 3, the air suction pipe assembly 3 comprises an air suction port 31, an external interface 32 and an air pipe 33, the air suction port 31 is arranged on the side wall of the inner cylinder body 11, the external interface 32 is arranged on the side wall of the outer cylinder body 12, and the air suction port 31 is connected with the external interface 32 through the air pipe 33; the air pipe 33 is located in the space between the inner cylinder body 11 and the outer cylinder body 12. Two hooks 4 are symmetrically arranged outside the upper edge of the bathtub body 1, and the hooks 4 are used for preliminarily fixing a film body 5. The film body 5 is provided with hook holes corresponding to the positions of the hooks 4, and the distance between the two hook holes is 80 cm (adapted to the width of the bathtub). The film body 5 can be hung on the hooks 4 through the hook holes. A rubber strip 6 is arranged outside the upper edge of the bathtub body 1, and the rubber strip 6 is used for further fixing the film body 5 and sealing the film body 5 and the bathtub body 1.

[0031] In the embodiment, the method for covering the bathtub body 1 to form a disposable film-covered bathtub comprises the following steps:

[0032] Step one: first place a non-slip pad 8 at the bottom of the bathtub body 1, then respectively align the hook holes on both sides of the film body 5 with the hooks 4 on both sides of the bathtub body 1 and put them into the hooks 4, and then adjust the edges of the film body 5 to be aligned with the edges of the cylinder mouth of the bathtub body 1;

[0033] Step two: straighten the film body 5, and then bond the edges of the film body 5 and the rubber strip 6 to form a package (the film body 5 covers the bathtub body 1 to form a sealed cavity) on the top of the bathtub body 1, and obtain an intermediate product as shown in Figure 3

[0034] Step three: connect the external interface 32 with the air suction pump connector, start the air suction pump, and start air suction. The air pressure in the bathtub body 1 decreases, the film body 5 deforms under the action of the atmospheric pressure, and gradually adsorbs on the bathtub body 1 until the film body 5 is closely attached to the bathtub body 1, and a disposable film-covered bathtub is obtained.

[0035] Step four: after the film body 5 completely covers the inner side wall of the bathtub body 1, that is, after the disposable film-covered bathtub is obtained, first remove the air suction pump connector, and then turn off the air suction pump.

[0036] In the above embodiment of the present application, the film body 5 is rectangular, and the size of the film body 5 is 1800*900 cm, which can adapt to bathtub bodies 1 of different sizes. Two hook holes with a diameter of 1 cm are symmetrically arranged at a distance of 2 cm from the edges of the film body 5, and the center distance between the two hook holes is 80 cm; the thickness of the film body 5 is 0.3 mm, which can balance toughness and light weight. The film body 5 adopts a polylactic acid film degradable material, which can withstand a high temperature of 80 DEG C, is suitable for a hot spring inn scene, and has a natural degradation period of only 3-6 months, and has strong environmental protection properties. The film body 5 is used as a core bearing component of the bathtub for containing bath water, and one-time use can avoid cross contamination.​

[0037] In the above embodiment of the present application, the anti-skid pad 7 is rectangular and has a size matching the bottom of the bathtub. The upper surface of the anti-skid pad 7 is provided with a circular convex anti-skid array, and the lower surface is provided with a sawtooth anti-skid pattern. The anti-skid pad 7 is arranged between the bathtub body 1 and the film body 5. The circular convex anti-skid array on the upper surface of the anti-skid pad 7 increases the friction between the film body 5 and the anti-skid pad 7, and the sawtooth anti-skid pattern on the lower surface of the anti-skid pad 7 increases the friction between the anti-skid pad 7 and the bathtub body 1. The double anti-skid function prevents the film body 5 from moving, and also prevents the human body from slipping.

[0038] In the above embodiment of the present application, the hook 4 is made of ABS engineering plastic, is chrome plated to prevent rust, and has a decorative effect. The hook 4 is fixedly attached to the edges of the bathtub body 1 at a distance of 3 cm from the upper surface of the bathtub body 1 when leaving the factory, and is used for sleeving the hanging hole of the film body 5 to achieve preliminary positioning of the film body 5 and limit the lateral movement of the film body 5. During bathing, the hook 4 can also be used to hang bathing supplies.

[0039] In the above embodiment of the present application, the adhesive strip 6 is a long strip-shaped double-sided adhesive tape with a width of 2 cm and a length consistent with the perimeter of the edge of the bathtub body 1. The inner side is attached to the bathtub body 1, and the outer side is provided with release paper when leaving the factory. The release paper needs to be torn off during the first use. The adhesive strip 6 is made of acrylic foam double-sided adhesive tape, specifically 3M VHB (Very High Bonding) series Tape 4910. This adhesive strip 6 has good waterproofness, can be reused, and is easy to remove without leaving residues after long-term use causes the adhesive to fail, facilitating the setting of a new adhesive strip 6.

[0040] In the above embodiment of the present application, the air suction pump is a handheld electric pump with a power of 500 W. It is equipped with a special joint matched with the external interface 32 (a type of self-locking quick connector) and has two gears, "air suction" and "stop". The air suction pump performs air suction operation on the space between the film body 5 and the bathtub body 1, reduces the air pressure on the inner side of the film body 5, and causes the film body 5 to deform downward under the action of atmospheric pressure, gradually closely adhering to the surface of the inner cylinder body 11. After covering, the film body 5 is smooth, flat, and wrinkle-free, providing a good experience.

[0041] It should be further pointed out that in the above embodiment, the bathtub body 1 includes an inner cylinder body 11 and an outer cylinder body 12, which is the mainstream structure of current bathtub products. However, when implementing the present application, the cylinder wall of the bathtub body 1 can also be in a whole form, such as a transparent bathtub formed by casting. At this time, the air suction port 31 is directly connected to the external interface 32, and the air vent pipe 33 does not need to be arranged.

[0042] The general description and the specific embodiments of the application involved in the present application should not be understood as a limitation on the technical solutions of the application. Based on the disclosure of the present application, those skilled in the art can add, reduce or combine the disclosed technical features in the general description or / and the specific embodiments (including the embodiments) without violating the elements of the application involved, to form other technical solutions within the protection scope of the present application.

Claims

1. A method of coating a disposable coated bathtub, characterized by: The method covers the matched film body (5) on the surface of the bathtub body (1) to form a disposable film-covered bathtub; the bottom of the bathtub body (1) is provided with a water outlet (2), and a water outlet device (7) is installed at the water outlet (2); the bathtub body (1) is provided with an air suction pipe assembly (3), the air suction pipe assembly (3) comprises an air suction port (31) and an external port (32) in communication, the air suction port (31) is arranged on the inner wall of the bathtub body (1), and the external port (32) is arranged on the outer wall of the bathtub body (1); two hooks (4) and a row of rubber strips (6) are symmetrically arranged outside the rim of the bathtub body (1), and correspondingly, the film body (5) is provided with a pair of hook holes (4) matched with the hooks (4). The method comprises the following steps: Step one: align the hook holes on both sides of the film body (5) with the hooks (4) on both sides of the bathtub body (1) and then put them in, and then adjust the edge of the film body (5) to be aligned with the rim of the bathtub body (1); Step two: straighten the film body (5), and then bond the edge of the film body (5) with the rubber strip (6) to form a coating on the top of the bathtub body (1) to obtain an intermediate product; Step three: connect the external port (32) with the air suction pump connector, start the air suction pump, start air suction, the air pressure in the bathtub body (1) decreases, the film body (5) deforms under the action of atmospheric pressure, and is gradually adsorbed on the bathtub body (1) until the film body (5) is tightly attached to the bathtub body (1), thereby obtaining a disposable film-covered bathtub.

2. The film-coating method for a disposable film-coated bathtub according to claim 1, characterized by: The method further comprises step four: after the film body (5) completely covers the inner side wall of the bathtub body (1), the air suction pump connector is first removed, and then the air suction pump is turned off.

3. The method of claim 1, wherein: Before step one is performed, the anti-slip pad (8) is placed at the bottom of the bathtub body (1).

4. The method of claim 3, wherein: The upper surface and the lower surface of the anti-slip pad (8) are both provided with anti-slip structures.

5. The method of claim 1-4, wherein the method is characterized by: The film body (5) is a polylactic acid film.

6. The method of claim 5, wherein: The distance between the two hook holes on the film body (5) is 75-80 cm.

7. The method of claim 1, wherein: The external port (32) is a female head of a c-type self-locking quick connector, and the air suction pump connector is a male head of a c-type self-locking quick connector, and the connection is achieved by inserting the male head into the female head.

8. The method of claim 1, wherein: The rubber strip (6) is an acrylic foam double-sided adhesive tape.

9. The method of claim 1, wherein: The air suction pump is provided with a pressure switch.

10. A film-coated bath characterized by: The film covering method of claim 1 is adopted to realize film covering. The film covering method of claim 1 is adopted to realize film covering.

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