Bedpan valve

Abstract

The utility model discloses a kind of bed with excrement collector valve body, including upper valve body and lower valve body, the lower valve body is installed in the upper valve body bottom, the lower valve body is communicated with excrement collector and is arranged, the lower valve body top is equipped with waist type sliding groove, the upper valve body and lower valve body form waist type sliding cavity after installation in valve body interior, sliding setting is equipped with valve plate in the waist type sliding groove inside adaptation;Driving mechanism, it is set in the lower valve body inside or outside and the valve plate peripheral side is connected, for driving the valve plate displacement along the waist type sliding groove length direction;The upper valve body and lower valve body are equipped with excrement collection hole, the excrement collection hole is located in the upper valve body and lower valve body side away from the driving mechanism, the excrement collection hole is located in the waist type sliding groove projection, the valve plate and the excrement collection hole specification adaptation;Sealing element, the sealing element is respectively set on the opposite end face of the upper valve body and lower valve body, for realizing the sealing between valve plate and excrement collection hole and the upper valve body and lower valve body.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing equipment technology, specifically to a bed-mounted toilet valve body. Background Technology

[0002] With the aging population and increasing demand for medical care, bed-based urinal systems (such as urinal collection devices for medical nursing beds and home-based assisted defecation devices for disabled individuals) have become key devices for improving the quality of life for people with limited mobility. Their core function is to achieve automatic collection, temporary storage, and discharge of excrement through integrated design, reducing manual intervention and lowering the risk of cross-infection.

[0003] However, the existing valve body structure of bed-type toilets has the following problems:

[0004] 1. Traditional valve bodies have insufficient sealing performance and are prone to leakage due to residual excrement;

[0005] 2. The structure is complex, the maintenance cost is high, and it is difficult to adapt to the frequent opening and closing requirements of the toilet.

[0006] Therefore, it is necessary to provide a bed-type toilet valve body to solve the problems mentioned in the background art. Utility Model Content

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bed-type toilet valve body, comprising: an upper valve body and a lower valve body, wherein the lower valve body is installed at the bottom of the upper valve body and is connected to the toilet; characterized in that the top of the lower valve body is provided with a waist-shaped sliding groove, and after the upper and lower valve bodies are installed, a waist-shaped sliding cavity is formed inside the valve body, and a valve plate is adapted to slide within the waist-shaped sliding groove;

[0008] A drive mechanism is disposed inside or outside the lower valve body and connected to the periphery of the valve plate, for driving the valve plate to move along the length direction of the waist-shaped slide groove;

[0009] The upper valve body and the lower valve body are provided with a collection hole. The collection hole is located on the side of the upper valve body and the lower valve body away from the drive mechanism. The collection hole is located within the projection of the waist-shaped slide groove. The valve plate is adapted to the specifications of the collection hole.

[0010] A sealing element is provided on the opposite end faces of the upper valve body and the lower valve body to achieve sealing between the valve plate and the collection hole, as well as between the upper valve body and the lower valve body.

[0011] Preferably, the upper valve body and the lower valve body have first annular grooves formed on their respective edge trajectories near their edges, and the upper and lower ends of the waist-shaped sliding cavity have corresponding second annular grooves formed on them. The sealing element is provided in both the first annular groove and the second annular groove.

[0012] Preferably, the sealing element includes a first sealing ring and a second sealing ring, the first sealing ring is installed in the first annular groove, the second sealing ring is installed in the second annular groove, and the first sealing ring and the second sealing ring constitute a loop-shaped sealing structure.

[0013] Preferably, the first sealing ring and the second sealing ring are inflatable sealing rings or elastic sealing rings.

[0014] Preferably, the top two sides of the first and second annular grooves are provided with limiting flanges facing each other to limit the inflatable sealing ring or elastic sealing ring.

[0015] Preferably, the inner walls of the upper valve body and the lower valve body are provided with a grid-like support rib formed by the intersection of longitudinal support bars and transverse support bars.

[0016] Preferably, the working surface of the valve plate is provided with a wear-resistant coating.

[0017] Preferably, an arc-shaped sealing section is provided on the inner side of the second sealing ring at one end of the collection hole, and the arc-shaped sealing section and the second sealing ring near the end of the collection hole form an annular sealing ring for sealing the periphery of the collection hole.

[0018] Preferably, the driving mechanism includes: a valve stem, one end of which is connected to the valve plate, and a through hole is provided in the middle of one end of the waist-shaped slide along its length direction. The other end of the valve stem extends through the through hole to the outside of the valve body. The valve stem is driven manually or by a linear drive unit.

[0019] Preferably, the outer surfaces of the upper valve body and the lower valve body are further provided with an antibacterial coating.

[0020] Compared with the prior art, this utility model provides a valve body for a bed-type toilet, which has the following beneficial effects:

[0021] In this invention, the use of a loop-shaped inflatable sealing ring or an elastic sealing ring effectively prevents media leakage; the use of a wear-resistant coating effectively extends the service life of the valve plate; and the use of mesh support ribs enhances its structural stability and prevents deformation during use. Attached Figure Description

[0022] Figure 1 A schematic diagram of the main sectional view of the valve body of a bed-type toilet;

[0023] Figure 2 A schematic diagram of the valve body structure of a bed-use toilet valve body;

[0024] Figure 3 A schematic diagram of the lower valve body structure of a bed-type toilet valve body;

[0025] Figure 4 A schematic diagram of the exploded structure of a valve body for a bed-type toilet.

[0026] Figure 5 A schematic diagram of the second sealing ring structure of a bed-use toilet valve body;

[0027] Figure 6 A schematic diagram of the overall structure of a bed-use toilet valve body;

[0028] In the diagram: 1. Upper valve body; 2. Lower valve body; 3. Waist-shaped slide groove; 4. Collection hole; 5. Valve plate; 6. Valve stem; 7. Insertion hole; 8. First annular groove; 9. Second annular groove; 10. First sealing ring; 11. Second sealing ring; 12. Arc-shaped sealing section. Detailed Implementation

[0029] Please see Figure 1-6 This utility model provides a valve body for a bed-type toilet, comprising:

[0030] The upper valve body 1 and the lower valve body 2 are provided. The lower valve body 2 is installed at the bottom of the upper valve body 1 and is connected to the toilet. The bottom of the lower valve body 2 is provided with a waist-shaped sliding groove 3. After the upper valve body 1 and the lower valve body 2 are installed, a waist-shaped sliding cavity is formed inside the valve body. A valve plate 5 is adapted to slide in the waist-shaped sliding groove 3.

[0031] A drive mechanism is provided on the inner or outer side of the lower valve body 2 and connected to the periphery of the valve plate 5, for driving the valve plate 5 to move along the length direction of the waist-shaped slide groove 3;

[0032] The upper valve body 1 and the lower valve body 2 are provided with a collection hole 4. The collection hole 4 is located on the side of the upper valve body 1 and the lower valve body 2 away from the drive mechanism. The collection hole 4 is located within the projection of the waist-shaped slide groove 3. The valve plate 5 is adapted to the specifications of the collection hole 4.

[0033] The sealing elements are respectively disposed on the opposite end faces of the upper valve body 1 and the lower valve body 2, and are used to achieve sealing between the valve plate 5 and the collection hole 4, as well as between the upper valve body 1 and the lower valve body 2.

[0034] It should be explained that during use, the valve body is installed together with the toilet bowl. The valve plate 5 is moved back and forth by the drive mechanism to open or close the collection hole 4. Multiple seals are used to create a multi-stage seal between the valve plate 5 and the collection hole 4, as well as between the upper valve body 1 and the lower valve body 2, preventing insufficient valve body sealing that could lead to leakage of residual media and affect operation. Furthermore, the upper valve body 1 and the lower valve body 2 are bolted together, facilitating easy disassembly and quick replacement of internal components. The structure is simple, and maintenance costs are low.

[0035] Specifically, the valve body is installed with the toilet bowl. The lower valve body is fixedly connected to the toilet bowl, and a sealing ring is installed at the connection point around the toilet bowl opening to prevent leakage.

[0036] Furthermore, the upper valve body 1 and the lower valve body 2 have first annular grooves 8 formed on their respective edge tracks near their opposite end faces, and the upper and lower ends of the waist-shaped sliding cavity are respectively provided with second annular grooves 9. The sealing element is provided in both the first annular groove 8 and the second annular groove 9, and the sealing element is adhered to the bottom of the first annular groove 8 or the second annular groove 9.

[0037] Furthermore, the sealing element includes a first sealing ring 10 and a second sealing ring 11. The first sealing ring 10 is installed in the first annular groove 8, and the second sealing ring 11 is installed in the second annular groove 9. The first sealing ring 10 and the second sealing ring 11 constitute a loop-shaped sealing structure.

[0038] Specifically, the sealing between the valve plate 5 and the collection hole 4, as well as between the upper valve body 1 and the lower valve body 2, is achieved through a loop-shaped sealing structure.

[0039] Furthermore, the first sealing ring 10 and the second sealing ring 11 are inflatable sealing rings or elastic sealing rings.

[0040] Furthermore, the top two sides of the first annular groove 8 and the second annular groove 9 are provided with limiting flanges (not shown in the figure) to limit the inflatable sealing ring or elastic sealing ring and prevent the sealing ring from falling out.

[0041] In some embodiments, the inflatable sealing ring includes an inflation valve and an exhaust valve disposed thereon, and a pressure sensing unit is disposed inside the inflatable sealing ring. The inflation valve is connected to an external pressurizing device, which is used to provide a pressurizing medium to the inside of the inflatable sealing ring. When the inflatable sealing ring is used for sealing, by filling the inflatable sealing ring with a pressurizing medium, the expansion volume of the inflatable sealing ring changes, thereby achieving a seal between the valve plate 5 and the collection hole 4, and between the upper valve body 1 and the lower valve body 2. Specifically, when the valve plate 5 moves, the inflatable sealing ring is in a slightly expanded / deflated state, reducing the moving resistance. When it moves into place, a pressurizing medium is filled into the inflatable sealing ring for expansion and sealing.

[0042] In some embodiments, an elastic sealing ring is used for sealing. The elastic sealing ring is made of a corrosion-resistant and moisture-resistant material, such as fluororubber or polytetrafluoroethylene.

[0043] Furthermore, the inner walls of the upper valve body 1 and the lower valve body 2 are provided with a grid-like support rib (not shown in the figure) formed by the intersection of longitudinal support bars and transverse support bars, with a thickness of 20%-30% of the total thickness of the upper valve body 1 or the lower valve body 2, to enhance the deformation resistance of the valve body.

[0044] Furthermore, the working surface of the valve plate 5 is provided with a wear-resistant coating.

[0045] Specifically, the wear-resistant coating is a composite coating prepared by mixing Teflon substrate and silicon carbide particles, with a thickness of 50-80 μm and a surface roughness Ra≤0.8 μm.

[0046] In some embodiments, a plurality of balls (not shown in the figure) are rotatably embedded on the outer side of the valve stem 6 along its body. The balls roll into the insertion hole 7 to drive the valve plate 5 to move, thereby reducing frictional resistance.

[0047] Furthermore, an arc-shaped sealing section 12 is provided on the inner side of the second sealing ring 11 at one end of the collection hole 4. The arc-shaped sealing section 12 and the second sealing ring 11 near the end of the collection hole 4 form an annular sealing ring, which is used to seal the periphery of the collection hole 4 and prevent leakage at the collection hole 4 during the movement of the valve plate 5.

[0048] Furthermore, the driving mechanism includes: a valve stem 6, one end of which is connected to the valve plate 5; a through hole 7 is provided in the middle of one end of the waist-shaped slide groove 3 along its length direction; the other end of the valve stem 6 extends through the through hole 7 to the outside of the valve body; the valve stem 6 is driven manually or by a linear drive unit.

[0049] Specifically, when manual drive is used, a pull handle is directly installed on the outside of the valve stem 6, which can be manually pulled; when a lower linear actuator is used for drive, the output end of the pneumatic / hydraulic telescopic cylinder is coaxially and fixedly connected to the outer end of the valve stem 6 for linear drive.

[0050] Furthermore, the outer surfaces of the upper valve body 1 and the lower valve body 2 are also provided with antibacterial coatings, such as silver ion antibacterial coatings or zinc ion composite coatings, which comply with ISO22196 standards.

[0051] Experimental test data for this embodiment:

[0052] Sealing performance: No leakage after 5000 consecutive opening and closing cycles at 0.1MPa pressure (refer to GB / T 13927 standard).

[0053] Wear resistance: The wear of the Teflon-coated valve plate is <0.1mm after 500,000 sliding cycles (ASTM G133 test).

[0054] Structural strength: The mesh support increases the valve body's resistance to deformation by 40% (simulation comparison data).

[0055] Effect verification comparison

[0056]

[0057] In practice, the valve body is installed together with the toilet bowl, and the valve plate is moved back and forth by the drive mechanism to open or close the collection hole. The valve plate and the collection hole, as well as the upper valve body and the lower valve body, are sealed in multiple stages by the setting of the sealing element to avoid insufficient sealing of the valve body, which would lead to leakage of residual medium and affect the use.

[0058] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve body for a bed-mounted toilet, comprising: The upper valve body (1) and the lower valve body (2) are provided. The lower valve body (2) is installed at the bottom of the upper valve body (1). The lower valve body (2) is connected to the toilet. The lower valve body (2) is characterized in that a waist-shaped sliding groove (3) is provided at the top of the lower valve body (2). After the upper valve body (1) and the lower valve body (2) are installed, a waist-shaped sliding cavity is formed inside the valve body. A valve plate (5) is adapted to slide in the waist-shaped sliding groove (3). A drive mechanism is provided on the inner or outer side of the lower valve body (2) and connected to the periphery of the valve plate (5) for driving the valve plate (5) to move along the length direction of the waist-shaped slide groove (3); The upper valve body (1) and the lower valve body (2) are provided with a collection hole (4). The collection hole (4) is located on the side of the upper valve body (1) and the lower valve body (2) away from the drive mechanism. The collection hole (4) is located within the projection of the waist-shaped slide groove (3). The valve plate (5) is adapted to the specifications of the collection hole (4). The sealing elements are respectively disposed on the opposite end faces of the upper valve body (1) and the lower valve body (2) to achieve sealing between the valve plate (5) and the collection hole (4) and between the upper valve body (1) and the lower valve body (2); The upper valve body (1) and the lower valve body (2) have first annular grooves (8) formed on their respective end faces near their edges, and the upper and lower ends of the waist-shaped sliding cavity are respectively provided with second annular grooves (9). The sealing element is provided in both the first annular groove (8) and the second annular groove (9).

2. The bed-use toilet valve body according to claim 1, characterized in that, The sealing element includes a first sealing ring (10) and a second sealing ring (11). The first sealing ring (10) is installed in the first annular groove (8), and the second sealing ring (11) is installed in the second annular groove (9). The first sealing ring (10) and the second sealing ring (11) constitute a loop-shaped sealing structure.

3. The bed-use toilet valve body according to claim 2, characterized in that, The first sealing ring (10) and the second sealing ring (11) are inflatable sealing rings or elastic sealing rings.

4. The bed-use toilet valve body according to claim 3, characterized in that, The top two sides of the first annular groove (8) and the second annular groove (9) are provided with limiting flanges to limit the inflatable sealing ring or elastic sealing ring.

5. The bed-use toilet valve body according to claim 1, characterized in that, The inner walls of the upper valve body (1) and the lower valve body (2) are provided with grid-like support ribs formed by the intersection of longitudinal support bars and transverse support bars.

6. The bed-use toilet valve body according to claim 1, characterized in that, The working surface of the valve plate (5) is provided with a wear-resistant coating.

7. A bed-use toilet valve body according to claim 3, characterized in that, An arc-shaped sealing section (12) is provided on the inner side of the second sealing ring (11) at one end of the collection hole (4). The arc-shaped sealing section (12) and the second sealing ring (11) near the end of the collection hole (4) form an annular sealing ring for sealing the periphery of the collection hole (4).

8. A bed-mounted toilet valve body according to claim 1, characterized in that, The driving mechanism includes: a valve stem (6), one end of which is connected to the valve plate (5), and a slot (7) is provided through the middle of one end of the waist-shaped slide groove (3) along its length direction. The other end of the valve stem (6) extends through the slot (7) to the outside of the valve body. The valve stem (6) is driven manually or by a linear drive unit.

9. A bed-use toilet valve body according to claim 1, characterized in that, The outer surfaces of the upper valve body (1) and the lower valve body (2) are also provided with an antibacterial coating.

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