Automatic flushing closestool for nursing bed

Abstract

The invention discloses an automatic flushing closestool for a nursing bed, which comprises a closestool body and a closestool shield mounted on the closestool body, and the center of the inner wall surface of the upper part of the closestool shield is provided with a shield nozzle; a drying air inlet and a negative pressure relief valve are arranged on the upper portion of the inner wall face of the rear portion of the closestool body, and a rear nozzle is arranged in the middle of the inner wall face of the rear portion of the closestool body. The toilet bowl body and the toilet bowl protective cover of the automatic flushing toilet bowl are compact in layout, and the flushing and drying accuracy is guaranteed; and flushing ports in three directions and various nozzles (the shield nozzle, the rear nozzle, the atomizing nozzle and the front nozzle) are arranged, so that an all-directional flushing function can be realized, and the wall of the closestool and the body of a user are ensured to be thoroughly cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of nursing devices, and particularly to an automatic flushing toilet for a nursing bed. Background Art

[0002] Currently, nursing beds on the market usually come with automatic flushing toilets, which can improve the nursing quality of disabled people, enabling disabled elderly people to complete toileting independently without the need for frequent assistance from nursing staff for cleaning. Moreover, some nursing beds have a wireless remote control operation function, allowing for autonomous use at night to avoid the risk of falling caused by frequent getting up.

[0003] The applicant of the present invention disclosed an automatic flushing toilet cover and working method for a nursing bed in Patent CN202310289207.4, including a cover skeleton composed of multiple skeleton joints arranged in sequence from top to bottom. The left and right sides of the front ends of adjacent two skeleton joints are hinged through skeleton rotating shafts, and the rear ends of adjacent two skeleton joints are hinged to each other through a telescopic device; the left and right sides of the front end of the lowermost skeleton joint are hinged to the left and right sides of the middle part of the base through skeleton rotating shafts, and its rear end is hinged to the rear part of the base through a telescopic device; buffer devices are installed on the edges of each skeleton joint and on the edges of the base that will contact the human body. This automatic flushing toilet cover can be used for the automatic flushing toilet of a nursing bed, can be deformed and adjusted according to the body posture of the user, and can effectively avoid the problem that urine splashes everywhere when the bedridden user urinates and defecates, soiling the beddings, or the liquid splashes when flushing the toilet and wets the mattress.

[0004] The applicant of the present invention also disclosed a toilet lifting mechanism for a nursing bed in Patent CN202320584618.1, including a chassis installed on the nursing bed bracket at the tail of the nursing bed. Two first connecting rods are hinged to both sides of the middle part of the chassis, and two second connecting rods are hinged to both sides of the front part of the chassis. The middle parts of the two second connecting rods are connected by a first fixing rod. The center of the tail of the chassis is hinged to the tail end of a first telescopic device, and the front end of the first telescopic device is hinged to the middle part of the first fixing rod; the top of each first connecting rod is hinged to the rear end of a third connecting rod, the middle part of the third connecting rod is hinged to the top of the second connecting rod on the same side, and the front ends of the two third connecting rods are respectively hinged to the left and right sides of the toilet. When the toilet is not in use, it can be hidden under the bed surface of the nursing bed without occupying space; when in use, the toilet emerges from the bed surface of the nursing bed. Moreover, if a higher requirement for the fit between the toilet and the user's body is needed, and a second telescopic device is also designed in this toilet lifting mechanism, which can further fine-tune the posture of the toilet to ensure a close fit between the toilet and the user's body.

[0005] However, through long-term use, it is found that the design of the automatic flushing toilet in this patent is not entirely reasonable. It often fails to thoroughly flush the feces on the toilet wall, and the toilet does not have a perfect function of flushing and drying the user's body. Therefore, R & D personnel in this field urgently need to develop an automatic flushing toilet for a nursing bed. Summary of the Invention

[0006] The object of the present invention is to provide an automatic flushing toilet for a nursing bed.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] An automatic flushing toilet for a nursing bed, comprising a toilet body and a toilet cover installed on the toilet body. A cover nozzle is provided at the center of the inner wall surface of the upper part of the toilet cover; a drying air inlet and a negative pressure relief valve are provided at the upper part of the inner wall surface of the rear part of the toilet body, and a rear nozzle is provided at the middle part of the inner wall surface of the rear part of the toilet body.

[0009] Wherein, an atomizing nozzle is provided at the center of the left side wall surface and / or the center of the right side wall surface of the toilet body, and a front nozzle is provided at the center of the front wall surface of the toilet body.

[0010] Wherein, a left flushing port, a central flushing port and a right flushing port are provided below the outer edge of the front side of the top of the toilet body. The left and right sides of the upper part of the inner wall surface of the toilet body bulge inward to form two stepped flow channels. The left flushing port is communicated with the left flow channel, and the right flushing port is communicated with the right flow channel.

[0011] Wherein, a sewage outlet and a drying air duct are provided below the rear part of the toilet body. The sewage outlet is communicated with the sewage channel in the toilet body, and the drying air duct is communicated with the drying air inlet.

[0012] Wherein, a reduced diameter port is provided on the bottom surface of the toilet body, and the reduced diameter port is connected to the sewage outlet through an inclined upward sewage channel.

[0013] Wherein, the shape of the top edge of the inner wall surface of the toilet body is wider in the front and narrower in the rear, approximately elliptical in the front, inwardly contracted on both the left and right sides in the middle, and inverted U-shaped in the rear.

[0014] Wherein, the connection line between the center of the front side of the top of the toilet body and the center of the reduced diameter port on the bottom surface is in a parabolic shape.

[0015] Wherein, a number of pressure sensors are evenly distributed on the parts of the edges of the toilet body and the toilet cover that come into contact with the user's body.

[0016] Among them, a shield nozzle is provided at the center of the inner wall surface of the top of the toilet shield, and the shield nozzle is located on the central axis of the inner wall surface of the toilet shield.

[0017] Among them, a second laser sensor is provided at the center of the inner wall surface of the rear part of the toilet body, and both the second laser sensor and the rear nozzle are located on the central axis of the inner wall surface of the toilet body.

[0018] Compared with the prior art, the outstanding effects of the present invention are as follows:

[0019] (1) The layout of the toilet body and the toilet shield of the automatic flushing toilet of the present invention is compact, and each component (such as a laser sensor, a nozzle, a drying air inlet, etc.) is located on the central axis, ensuring the accuracy of flushing and drying; three-direction flushing ports and various nozzles (shield nozzle, rear nozzle, atomizing nozzle, front nozzle) are provided, which can realize the all-round flushing function and ensure the thorough cleaning of the toilet wall and the user's body; through the design of the flushing port, the flow channel and the sewage discharge channel, the efficient flushing and sewage discharge functions are realized.

[0020] (2) The setting of the drying air inlet of the automatic flushing toilet of the present invention can quickly dry the user's body after flushing; the application of the laser sensor and the pressure sensor can sense the position and state of the user in real time and provide personalized flushing and drying services.

[0021] (3) The stepped flow channel design and the parabolic connection on the toilet body optimize the water flow path and improve the flushing effect; the use of the buffer device and the pressure sensor avoids the user from being injured during use, provides higher safety, and ensures the close fit of the toilet body, the toilet shield and the human body.

[0022] (4) Through precise flushing control and drying function, the waste of water resources is reduced, and at the same time, the energy utilization efficiency is improved.

[0023] (5) The automatic flushing toilet of the present invention is particularly suitable for disabled people, enabling them to complete toileting independently, reducing the burden on caregivers; through thorough flushing and drying functions, the risk of bacterial growth and cross-infection is effectively avoided; through the control of the solenoid valve and the sensor, it can adapt to the needs of different users and provide personalized services.

[0024] The automatic flushing toilet for a nursing bed described in the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0025] Figure 1 It is a three-dimensional perspective schematic diagram of the automatic flushing toilet for a nursing bed.

[0026] Figure 2Rear three-dimensional schematic diagram of an automatic flushing toilet for a nursing bed.

[0027] Figure 3 Front lower three-dimensional schematic diagram of an automatic flushing toilet for a nursing bed.

[0028] Figure 4 Half-section three-dimensional schematic diagram of an automatic flushing toilet for a nursing bed.

[0029] Figure 5 Top view of the toilet body.

[0030] Figure 6 Schematic diagram of the flow channel of the toilet body.

[0031] Figure 7 Side view of the toilet body.

[0032] Figure 8 Structural schematic diagram of the water supply and drainage system of the automatic flushing toilet.

[0033] Figure 9 Partial structural schematic diagram of the water supply and drainage system of the automatic flushing toilet (components such as the cold water tank, hot water tank, and back panel are not shown).

[0034] Figure 10 Schematic diagram of the pipeline connection between the water supply and drainage system of the automatic flushing toilet and the automatic flushing toilet.

[0035] Among them, 101 - toilet body, 102 - toilet cover, 103 - cover nozzle, 104 - first laser sensor, 105 - second laser sensor, 106 - rear nozzle, 107 - atomizing nozzle, 108 - drying air inlet, 109 - negative pressure relief valve, 110 - sewage outlet, 111 - drying air duct, 112 - left flushing water inlet, 113 - central flushing water inlet, 114 - right flushing water inlet, 115 - front nozzle, 116 - flow channel, 117 - sewage channel;

[0036] 1 - cold water tank, 2 - hot water tank, 3 - water heater, 4 - dryer, 5 - negative pressure fan, 6 - sewage tank, 7 - bracket, 8 - back panel, 9 - cold water pump, 10 - hot water pump, 11 - first solenoid valve, 12 - second solenoid valve, 13 - third solenoid valve, 14 - fourth solenoid valve, 15 - fifth solenoid valve, 16 - sewage pipe, 17 - sewage inlet, 18 - air extraction port, 19 - air inlet pipe, 20 - warm air fan, 21 - heating wire, 22 - nozzle combination. Detailed implementation manner

[0037] It should be noted that the attached drawings of the specification of the present invention Figures 1 - 4The reference numerals of components such as the nozzle, pressure relief valve, and sensor in [the text] only represent the installation positions of these components in the automatic flushing toilet of the present invention. To keep the schematic diagram simple and easy to understand, the specific shapes of these components are not drawn. Components such as the nozzle, pressure relief valve, sensor, solenoid valve, water pump, fan, heating wire, air blower, heater, and dryer involved in the present invention are all conventional components that can be purchased in the market. Those skilled in the art can select components with appropriate technical parameters according to the size of different toilets and working requirements.

[0038] As Figures 1 - 5 shown, an automatic flushing toilet for a nursing bed includes a toilet body 101 and a toilet cover 102 installed on the toilet body 101. A first laser sensor 104 is provided at the center of the inner wall surface of the top of the toilet cover 102. Below the first laser sensor 104 is a cover nozzle 103. Both the first laser sensor 104 and the cover nozzle 103 are located on the central axis of the inner wall surface of the toilet cover 102.

[0039] At the upper part of the inner wall surface at the rear of the toilet body 101, a drying air inlet 108 and a negative pressure relief valve 109 are provided. At the center of the inner wall surface at the rear of the toilet body 101 is a second laser sensor 105. Below the second laser sensor 105 is a rear nozzle 106. Both the second laser sensor 105 and the rear nozzle 106 are located on the central axis of the inner wall surface of the toilet body 101.

[0040] At the center of the left side wall surface and the right side wall surface of the toilet body 101, atomizing nozzles 107 are provided. At the center of the front wall surface of the toilet body 101 is a front nozzle 115. Among them, the atomizing nozzles 107 are used for steam sitz bath. The front nozzle 115, rear nozzle 106, and cover nozzle 103 are used for flushing the body.

[0041] Below the outer edge at the front side of the top of the toilet body 101, a left flush water inlet 112, a central flush water inlet 113, and a right flush water inlet 114 are provided. On both the left and right sides of the upper part of the inner wall surface of the toilet body 101, inward protrusions are formed to form two stepped flow channels 116. The left flush water inlet 112 is connected to the left flow channel 116, and the right flush water inlet 114 is connected to the right flow channel 116. When flushing, the left flush water inlet 112 and the right flush water inlet 114 flush the wall surface from front to back and downward along the left and right flow channels, and the central flush water inlet 113 flushes from top to bottom, ensuring that the feces and urine on the toilet wall can be completely flushed to the bottom of the toilet.

[0042] Below the rear part of the toilet body 101, there are a sewage outlet 110 and a drying air duct 111. The sewage outlet 110 is communicated with a sewage passage 117 in the toilet body 101, and the drying air duct 111 is communicated with the drying air inlet 108. On the bottom surface of the toilet body 101, there is a reduced-diameter opening, which is connected to the sewage outlet 110 through an upwardly inclined sewage passage 117. The drying air inlet 108 can introduce warm air to dry the user's body.

[0043] As Figure 6 shown, the shape of the top edge of the inner wall surface of the toilet body 101 is wider in the front and narrower in the rear. The front part is approximately oval, both the left and right sides in the middle part contract inward, and the rear part is in an inverted U shape.

[0044] As Figure 7 shown, the connection line between the center of the front side of the top of the toilet body 101 and the center of the reduced-diameter opening on the bottom surface is in a parabolic shape.

[0045] Buffer devices are installed at the parts of the edge of the toilet body 101 and the edge of the toilet cover 102 that come into contact with the user's body. A number of pressure sensors are evenly distributed on the outside, inside or inner side of the buffer devices. Among them, the buffer devices can be soft cushion blocks. The specific setting method of the buffer devices and the pressure sensors can refer to the layout method in Patent CN202310289207.4.

[0046] As Figure 10 shown, when in use, the automatic flushing toilet is connected to the water supply and drainage system. As Figures 8 - 9 shown, the water supply and drainage system of the automatic flushing toilet includes a cold water tank 1. The bottom outlet of the cold water tank 1 is connected to the inlet of a cold water pump 9 through a cold water pipeline, and the outlet of the cold water pump 9 is connected to the flush water outlet of the automatic flushing toilet through a pipeline. A first branch is connected to the pipeline between the bottom outlet of the cold water tank 1 and the inlet of the cold water pump 9, and the first branch is connected to the inlet of a hot water pump 10.

[0047] A second branch is connected to the first branch. The second branch is connected to an outlet of a hot water tank 2. The other outlet of the hot water tank 2 is connected to the inlet of a water heater 3. The outlet of the hot water pump 10 is connected to a nozzle assembly 22 on the automatic flushing toilet. A third branch is connected to the hot water pipeline between the outlet of the hot water pump 10 and the nozzle assembly 22 on the automatic flushing toilet, and the outlet of the water heater 3 is connected to the third branch.

[0048] The first branch is provided with a first solenoid valve 11, and the first solenoid valve 11 is located between the connection point of the first branch and the cold water pipeline and the connection point of the first branch and the second branch. The second branch is provided with a second solenoid valve 12. The third branch is provided with a third solenoid valve 13. A fourth solenoid valve 14 is provided on the pipeline between the outlet of the cold water pump 9 and the flushing port; a fifth solenoid valve 15 is provided on the inlet pipeline of the nozzle assembly 22.

[0049] Among them, the first solenoid valve 11 is a normally closed solenoid valve, and both the second solenoid valve 12 and the third solenoid valve 13 are normally open solenoid valves. The fourth solenoid valve 14 is a one-in-two-out solenoid valve. The fifth solenoid valve 15 is a one-in-four-out solenoid valve.

[0050] In other beneficial embodiments, the first solenoid valve 11 and the second solenoid valve 12 (i.e., Figure 10 at point A) can be replaced by a three-way reversing valve.

[0051] The central flushing port 113 and the flushing ports on both sides (the left flushing port 112 and the right flushing port 114) are respectively connected to the two outlet pipelines controlled by the fourth solenoid valve 14. The nozzle assembly 22 includes a shield nozzle 103, a front nozzle 115, a rear nozzle 106, and a steam nozzle 107, and the four nozzles are respectively connected to the 4 outlet pipelines controlled by the fifth solenoid valve 15.

[0052] The air inlet pipe 19 of the automatic flushing toilet is connected to the dryer 4, and a warm air fan 20 and a heating wire 21 are provided in the dryer 4. The air inlet pipe 19 is connected to the drying air inlet 108.

[0053] The sewage pipe 16 of the automatic flushing toilet is connected to the sewage inlet 17 of the sewage tank 6, and the air extraction port 18 of the sewage tank 6 is connected to the negative pressure fan 5. The sewage pipe 16 is connected to the sewage outlet 110.

[0054] The cold water tank 1 and the hot water tank 2 are both placed on a bracket 7, the sewage tank 6 is placed on another bracket 7, and the backs of the two brackets 7 are both fixed on the back plate 8. The first solenoid valve 11, the second solenoid valve 12, and the third solenoid valve 13 are all fixed on the bracket 7 on the right side, and the water heater 3, the dryer 4, the negative pressure fan 5, the cold water pump 9, the hot water pump 10, the fourth solenoid valve 14, and the fifth solenoid valve 15 are all fixed on the back plate 8 through a tray or a bracket. The back plate 8 is fixed at the tail of the nursing bed. The cold water tank 1, the hot water tank 2, and the sewage tank 6 are all detachable.

[0055] The negative pressure relief valve 109 is composed of a baffle plate resisted by a spring, and its opening direction is towards the inside of the toilet. After the toilet cover is buckled onto the user's body, a sealed space is formed inside the toilet. During sewage discharge, the negative pressure fan 5 sucks, and a negative pressure is formed inside the toilet. At this time, the negative pressure relief valve 109 is sucked open to maintain the pressure balance inside and outside the toilet, and sewage such as urine is sucked into the sewage tank 6 through the sewage pipe 16.

[0056] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic flushing toilet for a nursing bed, characterized in that: It includes a toilet body (101) and a toilet cover (102) installed on the toilet body (101). A cover nozzle (103) is provided at the center of the upper inner wall surface of the toilet cover (102); at the upper part of the rear inner wall surface of the toilet body (101), there are a drying air inlet (108) and a negative pressure relief valve (109), and at the middle part of the rear inner wall surface of the toilet body (101), there is a rear nozzle (106).

2. The automatic flushing toilet for a nursing bed according to claim 1, characterized in that: An atomizing nozzle (107) is provided at the center of the left side wall surface and / or the center of the right side wall surface of the toilet body (101), and a front nozzle (115) is provided at the center of the front wall surface of the toilet body (101).

3. The automatic flushing toilet for a nursing bed according to claim 2, characterized in that: Below the lower edge of the front side of the top of the toilet body (101), there are a left flush water inlet (112), a central flush water inlet (113) and a right flush water inlet (114). On the left and right sides of the upper part of the inner wall surface of the toilet body (101), both bulge inward to form two stepped flow channels (116). The left flush water inlet (112) is communicated with the left flow channel (116), and the right flush water inlet (114) is communicated with the right flow channel (116).

4. The automatic flushing toilet for a nursing bed according to claim 3, characterized in that: Below the rear part of the toilet body (101), there are a sewage outlet (110) and a drying air duct (111). The sewage outlet (110) is communicated with a sewage channel (117) in the toilet body (101), and the drying air duct (111) is communicated with the drying air inlet (108).

5. The automatic flushing toilet for a nursing bed according to claim 4, wherein: A reduced-diameter port is provided on the bottom surface of the toilet body (101), and the reduced-diameter port is connected to the sewage outlet (110) through an upwardly inclined sewage channel (117).

6. The automatic flushing toilet for a nursing bed according to claim 5, characterized in that: The shape of the top edge of the inner wall surface of the toilet body (101) is wider in the front and narrower in the rear, approximately elliptical in the front, both the left and right sides in the middle contract inward in an arc shape, and the rear part is in an inverted U shape.

7. The automatic flushing toilet for a nursing bed according to claim 6, characterized in that: The connection line between the center of the front side of the top of the toilet body (101) and the center of the reduced-diameter port on the bottom surface is in a parabolic shape.

8. The automatic flushing toilet for a nursing bed according to claim 7, characterized in that: A number of pressure sensors are evenly distributed on the parts of the edges of the toilet body (101) and the toilet cover (102) that come into contact with the user's body.

9. The automatic flushing toilet for a nursing bed according to claim 8, wherein: A cover nozzle (103) is provided at the center of the top inner wall surface of the toilet cover (102), and the cover nozzle (103) is located on the central axis of the inner wall surface of the toilet cover (102).

10. The automatic flushing toilet for a nursing bed according to claim 9, characterized in that: A second laser sensor (105) is provided at the center of the rear inner wall surface of the toilet body (101), and both the second laser sensor (105) and the rear nozzle (106) are located on the central axis of the inner wall surface of the toilet body (101).

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