Internal and external split molding and reassembly toilet

Abstract

This utility model belongs to the field of toilet manufacturing technology, specifically relating to a toilet with separate inner and outer molding and reassembly. It consists of a toilet body and an outer shell. The toilet body includes a pot and a top panel. A first adhesive surface, which is inclined at a 10° angle, is provided on the lower outer edge of the top panel. The outer shell includes side walls and a base. A second adhesive surface, also inclined at a 10° angle and matching the first adhesive surface, is provided on the upper edge of the side walls. The first and second adhesive surfaces are bonded together. This utility model avoids visible seams from the user's first-person perspective, resulting in a better appearance. The wider adhesive surface enhances the bonding strength between the body and the outer shell. Furthermore, the inclined surface prevents slurry from accumulating on the adhesive surface when using mortar, reducing the risk of cracking. The 10° inclination minimizes the change in pressure direction, preventing damage to the outer shell and increasing the mold opening angle for easier demolding.

Description

Technical Field

[0001] This utility model belongs to the field of toilet manufacturing technology, specifically relating to a toilet that is formed and reassembled from separate inner and outer parts. Background Technology

[0002] The design of toilets mainly falls into two categories: functional design and aesthetic design. Functional design primarily involves the shape of the pot and the drainage pipe; aesthetic design mainly focuses on the shape of the shell supporting the pot. The pot design affects flushing performance, noise levels, and water consumption, while the aesthetic design caters to different aesthetic preferences. Currently, the outer shell and pot can be combined in various ways, for example, using the same pot with multiple outer shells. The current production method for toilets generally involves one-time integral slip casting, glazing, and sintering. While this method allows for one-time molding, resulting in good forming quality and high body strength, it also has significant drawbacks in practical production for modern multi-design products: First, the integral slip casting process results in complex mold structures and difficult production operations; second, the large size and thick walls of the body lead to long drainage and drying times, resulting in low production efficiency; and third, the specialized nature of the molds leads to low utilization and high mold costs.

[0003] To improve production efficiency and mold utilization, existing technologies have developed split-type toilet designs. For example, Chinese utility model patent number 202122865873.7, application date 2021.11.22, and authorization announcement number CN216552271U, provides a split-type toilet. This document discloses a design that divides the toilet into three parts: an upper ring blank, an inner blank, and an outer shell blank. These are each formed by slip casting, and then the three parts are bonded together to form a complete toilet. This design separates the internal structure from the outer shell, reducing the blank volume. The resulting outer shell can be matched with different inner blanks, thus solving the problem of low mold utilization.

[0004] However, existing manufacturing processes for two-piece toilets still have some drawbacks: 1) The bonding area between the two parts easily produces visible seams on the surface of the toilet, generally appearing as thin, dark gray lines. The bonding surface is usually a flat surface or a 45-degree bevel (a 45-degree bevel is a commonly used angle for the mating surfaces at the connection of two intersecting structures), see this application. Figure 1 When using a flat adhesive surface, the seam is low, and the dark gray trace line is located on the side wall of the toilet, making it easily visible to the user and affecting the product's appearance; see this application. Figure 2The product features a 45-degree bevel, with the dark gray trace line located at the bend between the toilet seat and the side wall. When users observe the product, this bend usually reflects light, obscuring the trace line and making it difficult for them to see. However, with the 45-degree bevel, when the inner blank and the upper blank are placed on the outer shell, part of the structure's weight is converted into lateral pressure by the bevel. In other words, the upper edge of the outer shell not only bears vertical pressure but also horizontal (outward) pressure, making it prone to deformation.

[0005] In addition, the toilet's rear end features a slotted structure design and a separately grouted outer shell. Since the lower part of the slotted shell is hollow, it lacks support and is prone to product warping and deformation. Utility Model Content

[0006] The technical problem this invention aims to solve is that the load-bearing part of a two-piece toilet is prone to deformation during the bonding and molding process.

[0007] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0008] A toilet with separate inner and outer parts is assembled from a toilet body and an outer shell. The toilet body includes a pot and a top panel. A first adhesive surface is provided on the lower outer edge of the top panel. The first adhesive surface is inclined at an angle of 5° to 20°. The outer shell includes a side wall and a base. A second adhesive surface is provided on the upper edge of the side wall. The second adhesive surface is inclined at an angle of 5° to 20° and matches the first adhesive surface. The first adhesive surface and the second adhesive surface are bonded and fixed together.

[0009] Compared with the prior art, the advantages of this utility model with the above structure are:

[0010] This utility model adopts a small-angle adhesive surface, which has the following advantages: 1) The adhesive line marks on the toilet surface are not visible from the user's first point of view, and the toilet looks better than a flat adhesive surface; 2) Compared with a flat adhesive surface, the adhesive surface of this design is wider, which improves the bonding strength between the main body and the outer shell. At the same time, the slope makes it less likely for the slurry to accumulate on the adhesive surface when using mud for bonding, reducing the risk of cracking; 3) The small slope of this design has very little change in the direction of pressure, so that the weight of the toilet body acts vertically on the outer shell, effectively controlling the amount of outward deformation of the outer shell under lateral pressure.

[0011] As a preferred option, a further technical solution to the above structure is:

[0012] The first bonding surface is an inclined plane with an upward angle from the inside out, and the second bonding surface is an inclined plane with a downward angle from the outside in.

[0013] The outer side of the first bonding surface is located at the lower end of the rounded corner of the seat ring.

[0014] The width of the first bonding surface is 2mm to 3mm larger than the width of the second bonding surface.

[0015] A baffle is provided on the inner side of the first bonding surface, and the inner side of the first bonding surface is connected to the upper end of the baffle.

[0016] The top panel includes a seat ring and a connecting seat. The inner edge of the seat ring is connected to the top of the pot body. The connecting seat has a main water channel and a water tank connection hole inside. The water inlet of the main water channel is located on the upper surface of the connecting seat, and the water outlet is connected to the pot body. The first bonding surface is a U-shaped line that extends forward from the left side of the connecting seat and extends along the outer edge of the seat ring to the right side of the connecting seat.

[0017] The outer shell includes a left side wall, a right side wall, a front side wall, and a rear side wall. The front ends of the left and right side walls are connected to the front side wall, and the upper part of the rear end is provided with a rearward protruding support tail, which corresponds to the position of the connecting seat. The rear side wall of the outer shell blank is an L-shaped plate. The vertical part of the L-shaped plate is connected to the rear ends of the left and right side walls, and the horizontal part of the L-shaped plate is connected to the lower side of the support tail. A structural hole marking line is provided in the middle of the L-shaped plate. Part of the structural hole marking line is located in the horizontal part and part is located in the vertical part. A cutting template is also provided. The cutting template is fitted to the surface of the rear side wall. The cutting template has a mold hole, and the outline of the mold hole is fitted with the structural hole marking line. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a planar bonding surface structure in the prior art;

[0019] Figure 2 This is a schematic diagram of a 45-degree inclined bonding surface structure in the prior art;

[0020] Figure 3 This is a schematic diagram of the main structure of the toilet of this utility model;

[0021] Figure 4 This is a schematic diagram of the lower structure of the main body of the toilet of this utility model;

[0022] Figure 5 This is a schematic diagram of the outer shell structure of this utility model;

[0023] Figure 6 This is a structural diagram of the toilet seat of this utility model;

[0024] Figure 7 This is a schematic diagram of the mating surface between the main body and the outer shell of the toilet of this utility model;

[0025] Figure 8 This is a schematic diagram of the cutting template;

[0026] Figure 9 This is a schematic diagram of the mud-plastering and bonding process of this utility model;

[0027] Figure 10 The unintentional image shows the bonding surface being smoothed and polished in this utility model.

[0028] In the diagram: 1. Toilet body; 101. Pot body; 102. Seat ring; 103. Connecting seat; 104. Water inlet; 105. Main water channel; 2. Outer shell; 201. Rear side wall; 202. Structural hole; 3. First bonding surface; 4. Second bonding surface; 5. Cut template; 6. Mold hole. Detailed Implementation

[0029] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0030] See Figures 3 to 8 A toilet with separate inner and outer components, comprising a toilet body 1 and an outer shell 2, wherein the toilet body 1 includes a pot body 101 and a top panel. The pot body 101 is used for collecting waste, and a water outlet is provided at the connection between the upper left side of the pot body 101 and the seat ring 102. The cap-shaped part of the bottom of the pot body 101 is connected to the drain outlet. The top panel includes a seat ring 102 and a connecting seat 103. The inner edge of the seat ring 102 is connected to the top of the pot body 101. The connecting seat 103 has a main water channel 105 and a water tank connection hole inside. The water inlet 104 of the main water channel 105 is located on the upper surface of the connecting seat 103, and the water outlet communicates with the pot body 101. This utility model is a flush toilet. In use, water enters the main water channel 105 through the water inlet 104, and then flows into the pot body 101 through the water outlet. The water flow carries the waste and is discharged from the drain pipe.

[0031] The toilet of this utility model has a first adhesive surface 3 on the lower side of the outer edge of the top panel. The first adhesive surface 3 is an inclined surface with an inclination angle of 5° to 20°. The outer shell 2 includes a side wall and a base. A second adhesive surface 4 is provided on the upper edge of the side wall. The second adhesive surface 4 is an inclined surface with an inclination angle of 5° to 20° and matches the first adhesive surface 3. The first adhesive surface 3 and the second adhesive surface 4 are bonded and fixed together.

[0032] This invention uses ceramic slurry to bond the first bonding surface 3 and the second bonding surface 4. Compared with the flat bonding surface, the inclined bonding surface design of this solution is wider, which improves the bonding strength between the main body and the outer shell 2. At the same time, the inclined surface makes it less likely for the slurry to accumulate on the bonding surface when using slurry for bonding, reducing the risk of cracking of the bonding surface.

[0033] This design uses an inclined bonding seam, which has a very small impact on the direction of pressure. This allows the weight of the toilet body 1 to act vertically on the outer shell 2, effectively controlling the outward deformation of the outer shell 2 under lateral pressure. It also increases the mold opening slope, making demolding easier.

[0034] Alternatively, the first bonding surface 3 is an inclined plane with an upward angle from the inside out, and the second bonding surface 4 is an inclined plane with a downward angle from the outside in. The direction and inclination of these inclined planes match the inclination of the outer shell 2, so that the pressure on the outer shell 2 is transmitted along the side wall to the bottom, resulting in a better support effect.

[0035] Preferably, the outer side of the first adhesive surface 3 is located at the lower end of the rounded arc portion of the seat ring 102. The adhesive lines visible on the toilet's surface avoid the user's first viewing angle, resulting in a better toilet appearance compared to a flat adhesive surface. The arc surface has a large range of light refraction; when the user observes the toilet from a downward angle (referred to as the first viewing angle), the refraction of surrounding light by the arc surface conceals the adhesive lines.

[0036] The two-piece toilet body 1 and outer shell 2 are bonded together while the blanks are still soft. The shrinkage of the toilet body 1 during drying is less than that of the outer shell 2. Therefore, this difference in shrinkage is considered in the design of the width and slope of the first bonding surface 3 and the second bonding surface 4. Optionally, the outer side of the first bonding surface 3 is located at the lower end of the rounded corner of the seat ring 102. This sloped position allows the bonding seam on the toilet surface to avoid the viewer's first line of sight, making it easily concealed by reflected light from the toilet surface and reducing the visibility of manufacturing marks. Optionally, the height of the inner side of the first bonding surface 3 from the top surface of the toilet should ensure the strength of the edge of the toilet body 1, preventing damage to the structure containing the first bonding surface 3. Optionally, the width of the first bonding surface 3 is 2mm to 3mm larger than the width of the second bonding surface 4.

[0037] In toilet manufacturing, conventional methods for repairing adhesive joints involve smoothing with mortar and polishing the surface to remove adhesive marks. However, in existing technologies, the 45-degree angled adhesive surface causes the outer shell 2 to deform outward under the pressure of the toilet body 1. Because the blank is relatively soft, this outward deformation is significant, resulting in a noticeable misalignment between the upper edge of the outer shell 2 and the toilet body 1. This misalignment cannot be repaired by simple polishing, leaving obvious adhesive marks. In this solution, due to the smaller angle of the adhesive surface, the outward expansion of the outer shell 2 is less. While the outward expansion causes the outer shell 2 to protrude from the side of the top panel, after drying, the shrinkage of the outer shell 2 is greater than the expansion and contraction of the toilet body 1, thus reducing the width of the protrusion and minimizing the misalignment. This allows for smoothing with mortar and light polishing to achieve a flat joint surface, effectively repairing the adhesive marks with mortar. While it's possible that the mortar and the blank may have different drying conditions, potentially preventing complete repair, it can at least reduce the number of marks on the finished product.

[0038] Optionally, a baffle is provided on the inner side of the first adhesive surface 3, and the inner side of the first adhesive surface 3 is connected to the upper end of the baffle. The height of the baffle is set according to the thickness of the seat ring 102 and the allowance of the slope of the first adhesive surface 3. The baffle structure can constrain the center of the outer shell 2 and the center of the toilet body 1 to coincide, so that the two are aligned and misalignment is avoided.

[0039] The first adhesive surface 3 is a U-shaped line that extends forward from the left side of the connector 103 and along the outer edge of the seat ring 102 to the right side of the connector 103. The width of the first adhesive surface 3 and the second adhesive surface 4 is 14mm-21mm.

[0040] To improve the strength of the outer shell 2, the outer shell 2 includes a left side wall, a right side wall, a front side wall, and a rear side wall 201. The front ends of the left side wall and the right side wall are connected to the front side wall, and the upper part of the rear end is provided with a rearward protruding support tail, which corresponds to the position of the connecting seat 103. The rear side wall 201 of the outer shell 2 blank is an L-shaped plate. The vertical part of the L-shaped plate is connected to the rear end of the left side wall and the right side wall on both sides, and the horizontal part of the L-shaped plate is connected to the lower side of the support tail. In this utility model, the rear part of the outer shell 2 is designed with a structural hole 202. The structural hole 202 causes the rear side wall 201 of the outer shell 2 to have no supporting force, and the support tail position is very easy to deform. Therefore, the stability requirements of the outer shell 2 are very high during production. To further address the toilet seat deformation problem: the L-shaped plate of this utility model has a structural hole 202 marking line in the middle, part of which is located in the horizontal part and part in the vertical part; a cutting template 5 is also provided, which is fitted to the surface of the rear side wall 201, and the cutting template 5 has a mold hole 6, the outline of which is fitted with the structural hole 202 marking line.

[0041] In this scheme, when the outer shell 2 is grouted, the rear side panel is made into a complete panel. After the blank is formed, the toilet body 1 and the outer shell 2 are bonded together. After bonding, the cutting template 5 is used to cut the rear side panel along the marked line of the structural hole 202 to form the shape of the outer shell 2 according to the design. Then the blank continues to stand until it is completely dry. This can ensure that the seat box is more stable and prevent the risk of sinking and deformation. The entire rear side panel is formed, which improves the overall structural strength of the outer shell 2 and avoids deformation during demolding.

[0042] This utility model does not specifically limit the material of the cutting template 5; any non-absorbent material is acceptable. Optionally, the cutting template 5 may be made of resin or PVC.

[0043] Compared with the prior art, the advantages of this utility model are:

[0044] The washdown toilet is constructed by bonding the toilet body and the outer shell together. This novel structural design utilizes a bonding process where the shapes of the first and second bonding parts align perfectly. This solves the problem of complex one-piece molding production, improves employee efficiency, facilitates product function control, enhances product stability, and adapts to mechanized and automated production, further increasing production efficiency. It also allows for customized design requests from customers.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A toilet with separate inner and outer parts, comprising a toilet body (1) and an outer shell (2), characterized in that: The toilet body (1) includes a pot body (101) and a top panel. A first adhesive surface (3) is provided on the lower side of the outer edge of the top panel. The first adhesive surface (3) is an inclined surface with an inclination angle of 5° to 20°. The outer shell (2) includes a side wall and a base. A second adhesive surface (4) is provided on the upper edge of the side wall. The second adhesive surface (4) is a slope with an inclination angle of 5° to 20° and matches the first adhesive surface (3). The first adhesive surface (3) is bonded and fixed to the second adhesive surface (4).

2. The toilet seat with internal and external split molding and recombination as described in claim 1, characterized in that: The first bonding surface (3) is an inclined plane with an elevation angle from the inside to the outside, and the second bonding surface (4) is an inclined plane with a depression angle from the outside to the inside.

3. The toilet seat with internal and external split molding and recombination as described in claim 1, characterized in that: The outer side of the first bonding surface (3) is located at the lower end of the rounded arc of the seat ring (102).

4. The toilet seat with internal and external split molding and recombination as described in claim 1, characterized in that: The width of the first bonding surface (3) is 2mm to 3mm larger than the width of the second bonding surface (4).

5. The toilet seat with internal and external split molding and recombination as described in claim 4, characterized in that: The inner side of the first bonding surface (3) is provided with a baffle wall, and the inner side of the first bonding surface (3) is connected to the upper end of the baffle wall.

6. The toilet seat with internal and external split molding and recombination as described in claim 1, characterized in that: The top panel includes a seat ring (102) and a connecting seat (103). The inner edge of the seat ring (102) is connected to the top of the pot body (101). The connecting seat (103) is provided with a main water channel and a water tank connection hole. The inlet of the main water channel (105) is located on the upper surface of the connecting seat (103), and the outlet is connected to the pot body (101). The first adhesive surface (3) is a U-shaped line that extends forward from the left side of the connecting seat (103) and extends along the outer edge of the seat ring (102) to the right side of the connecting seat (103).

7. The toilet seat with internal and external split molding and recombination as described in claim 1, characterized in that: The outer shell (2) includes a left side wall, a right side wall, a front side wall and a rear side wall (201). The front ends of the left side wall and the right side wall are connected to the front side wall. The rear end is provided with a rearward protruding support tail (203). The support tail (203) corresponds to the position of the connecting seat (103). The rear side wall (201) of the outer shell (2) blank is an L-shaped plate. The vertical part of the L-shaped plate is connected to the rear ends of the left side wall and the right side wall. The horizontal part of the L-shaped plate is connected to the lower side of the support tail (203). The middle part of the L-shaped plate is provided with a structural hole (202) marking line. Part of the structural hole (202) marking line is located in the horizontal part and part is located in the vertical part. A cutting template (5) is also provided. The cutting template (5) is fitted to the surface of the rear side wall (201). The cutting template (5) is provided with a mold hole (6). The outline of the mold hole (6) is fitted with the structural hole (202) marking line.

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