Septic tank for efficient production

Abstract

The present invention discloses a purification tank that is easy to produce efficiently. The key points of the technical solution are that it includes a tank body, a cavity connected to the outside, a first inner liner for sewage reaction is arranged at the center of the cavity, a second inner liner for sewage reaction is distributed around the first inner liner, one side of the second inner liner is tightly fitted with the first inner liner, and the other side of the second inner liner is tightly fitted with the inner wall of the cavity. Through the above structure, the blow molding process can be used for rapid production, while also ensuring structural stability and facilitating the adjustment of specifications.

Description

Technical Field

[0001] The invention relates to sewage purification equipment, in particular to a purification tank which is convenient for efficient production. Background Art

[0002] Rural toilet reform is an important part of rural health work. It is a major event that concerns the vital interests of farmers, as it improves the quality of farmers' health, reduces the occurrence of various infectious diseases, improves the rural environment, and improves the quality of life and health level of farmers.

[0003] In order to change the original rural dry toilets with overflowing smells and piles of mosquitoes and flies, most of the products on the market use septic tank structures for the harmless treatment of feces and domestic sewage. Now, multi-compartment septic tanks are used to treat sewage through the A / O process. Due to their simple structure, low cost, good treatment effect, and obvious environmental improvement, they are well received in rural areas.

[0004] The existing Chinese patent CN104973690B discloses a purification tank, which includes a tank body, and a plurality of cavities are arranged in the tank body. The production is carried out by injection molding. Since the production speed of the injection molding process is limited, the production process requires injection molding, cooling, mold opening, etc., so the efficiency is relatively general. In addition, during the injection molding production, the edges of the partitions in the tank body and other positions are prone to non-repetitive injection molding, resulting in leakage and other situations.

[0005] In order to improve processing efficiency, if the septic tank is blow molded, it is difficult to construct a multi-cavity structure, and the structural strength is limited. Currently, there is no septic tank formed by blow molding on the market. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a purification tank that is easy to produce efficiently and solves the technical problem of how to improve production efficiency while ensuring structural strength.

[0007] The above technical purpose of the present invention is achieved through the following technical scheme: a purification tank that is easy to produce efficiently, including a tank body, the tank body has a cavity connected to the outside world, a first inner tank for sewage reaction is arranged at the center of the cavity, and a second inner tank for sewage reaction is distributed around the first inner tank, one side of the second inner tank is tightly fitted with the first inner tank, and the other side of the second inner tank is tightly fitted with the inner wall of the cavity.

[0008] Through the above technical scheme, the original structure of dividing the cavity by partitions now makes each cavity independent, so that the structure of each cavity is relatively simple during production, the speed is faster during injection molding, or blow molding and other production processes with faster production efficiency can be used, and then they can be simply combined with each other, and the processing efficiency is faster; in order to ensure the structural stability, the layout of the inner liner is designed to be an independent first inner liner in the middle, and then the second inner liner is distributed in a surrounding manner, so that the internal structure is compact and the force distribution is uniform. The first inner liner, the second inner liner and the inner wall of the cavity are in a close contact structure to ensure the structural stability between the cavities, and each inner liner is not easy to shake. Compared with the structure divided by partitions, the independent processing of each inner liner can ensure the quality of each inner liner, and leakage is not easy to occur between each other.

[0009] The present invention is further configured as follows: there are multiple second inner liner and the second inner liner fills the gap between the first inner liner and the inner wall of the cavity, and the first inner liner and the second inner liner are both blow molded.

[0010] Through the above technical solution, the blow-molded first inner liner and the second inner liner can greatly improve the overall production efficiency of the inner liner. The multiple second inner liner structures are also easy to adjust according to different sewage processing processes, and the purification tank model is relatively convenient to adjust.

[0011] The present invention is further configured as follows: the first inner liner is circular, and the second inner liner is fan-shaped with the same size.

[0012] Through the above technical solution, the circular structure and the fan-shaped ring structure can make the internal stress more uniform, and the structure is not prone to severe local stress. It is also easier to assemble and easier to adjust the number of second inner tanks.

[0013] The present invention is further configured as follows: a first clamping surface is provided on the surface of the first inner liner, a second clamping surface that can be clamped and fixed with the first clamping surface is provided on the surface of the second inner liner, and a third clamping surface that is clamped and fixed with the two clamping surfaces is provided on the inner wall of the cavity.

[0014] Through the above technical solution, the first clamping surface, the second clamping surface and the third clamping surface are mutually clamped to allow the first liner and the second liner to be fixed in the cavity more stably, and the positioning is faster and more convenient without adding other additional fixing components.

[0015] The present invention is further configured as follows: the first clamping surface includes a first protrusion, the second clamping surface includes a first recessed portion engaged with the first protrusion, the first recessed portion is located on the inner side surface of the second inner liner, the first protrusion is a circumferentially extending annular protrusion and there are multiple of them, and the distribution and shape of the second protrusion are consistent with the first protrusion.

[0016] Through the above technical solution, the mutual engagement of the annular first protrusion and the first recessed portion can form a stable fixed structure, which can prevent the first inner liner from shaking in the axial direction, ensure the structural stability of the first inner liner, and facilitate quick and easy assembly.

[0017] The present invention is further configured as follows: the second clamping surface also includes a second protrusion located on the outer side surface of the second inner liner, the third clamping surface includes a second recessed portion clamped with the second protrusion, the second recessed portion is a circumferentially extending annular protrusion and there are multiple of them, and the distribution and shape of the second protrusion are consistent with the second recessed portion.

[0018] Through the above technical solution, the mutual engagement of the annular first protrusion and the first recessed portion can form a stable fixed structure, which can prevent the second inner liner from shaking in the axial direction, and the structure is stable and can be assembled quickly and conveniently.

[0019] The present invention is further configured as follows: the second clamping surface also includes a first circumferential positioning portion located on the outer side surface of the second inner liner and a second circumferential positioning portion located on the bottom of the second inner liner, the third clamping surface also includes a third circumferential positioning portion cooperating with the first circumferential positioning portion, and a fourth circumferential positioning portion cooperating with the second circumferential positioning portion, the first circumferential positioning portion and the third circumferential positioning portion have the same shape and are both circumferentially extending long strips, the first circumferential positioning portion is located above the second protruding portion, the second circumferential positioning portion and the fourth circumferential positioning portion have the same shape and are both radially extending long strips.

[0020] Through the above technical scheme, the mutual cooperation of the circumferential positioning parts on the second clamping surface and the third clamping surface can keep the second inner liner fixed and not easily rotate circumferentially, thereby causing excessive circumferential pressure between the second inner liner. At the same time, the upper and lower distribution structure of the first circumferential positioning part and the third circumferential positioning part can effectively ensure that the structure of the second inner liner is stable and not easy to shake.

[0021] The present invention is further configured as follows: a water through hole for the passage of a pipeline is provided on the first inner liner and the second inner liner, and a sealing ring is embedded on the inner wall of the water through hole.

[0022] Through the above technical solution, the structure of the water hole can allow the pipe to pass through, so that the sewage can flow between different inner tanks to achieve aerobic or anaerobic reaction, and the sealing ring structure can ensure that the sewage in the inner tank will not leak from the water hole.

[0023] The present invention is further configured as follows: an embedding groove is provided on the outer wall of the sealing ring, and the embedding groove is engaged with the inner wall of the water through hole.

[0024] Through the above technical solution, the embedded groove structure can ensure that the sealing ring is stably fixed on the water hole and is not prone to falling off or dislocation.

[0025] The present invention is further configured as follows: a top cover for covering is provided on the top of the trough body, an opening is provided at a central position of the top cover, and an area of ​​the opening is larger than a transverse cross-sectional area of ​​the first liner.

[0026] Through the above technical solution, the top cover structure can cover the tank body, and the opening structure facilitates the replacement of the filler inside the first inner tank at the center. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a structural diagram of an embodiment;

[0028] Figure 2 It is a structural diagram of the embodiment with the top cover removed;

[0029] Figure 3 is a structural diagram of the first inner container of the embodiment;

[0030] Figure 4 is a first structural diagram of the second inner container of the embodiment;

[0031] Figure 5 is a second structural diagram of the second inner container of the embodiment;

[0032] Figure 6 A structural diagram of the interior of the tank body of an embodiment;

[0033] Figure 7 A structural diagram of a top cover of an embodiment;

[0034] Figure 8 It is a partial cross-sectional view of the water hole in the embodiment.

[0035] Figure numerals: 1. trough body; 2. first inner liner; 21. first clamping surface; 211. first protrusion; 3. second inner liner; 31. second clamping surface; 311. first recessed portion; 312. second protrusion; 313. first circumferential positioning portion; 314. second circumferential positioning portion; 4. cavity; 41. third clamping surface; 411. second recessed portion; 412. third circumferential positioning portion; 413. fourth circumferential positioning portion; 51. water hole; 52. sealing ring; 521. embedded groove; 6. top cover; 61. opening. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1 and Figure 2As shown, a purification tank that is easy to produce efficiently includes a tank body 1, which is cylindrical and has a cavity 4 connected to the outside. A first inner tank 2 for sewage reaction is arranged at the center of the cavity 4, and four second inner tanks 3 for sewage reaction are distributed around the first inner tank 2. The first inner tank 2 and the second inner tank 3, and the second inner tank 3 can be connected through external pipes. When treating sewage, the sewage enters from the outside and flows through the first inner tank 2 and the second inner tank 3 in sequence, and finally discharged from the outer wall of the tank body 1 through the pipe.

[0038] like Figure 2 As shown, there are three second inner liners 3 and the second inner liners 3 fill the gap between the first inner liners 2 and the inner wall of the cavity 4. The first inner liners 2 are circular, and the second inner liners 3 are all fan-shaped with the same size. The entire purification tank is made of plastic, the first inner liners 2 and the second inner liners 3 are both blow-molded, and the tank body 1 is also blow-molded.

[0039] A first clamping surface 21 is provided on the surface of the first inner liner 2, a second clamping surface 31 that can be clamped and fixed with the first clamping surface 21 is provided on the surface of the second inner liner 3, and a third clamping surface 41 that is clamped and fixed with the two clamping surfaces is provided on the inner wall of the cavity 4. The first clamping surface 21, the second clamping surface 31 and the third clamping surface 41 are clamped together to allow the first inner liner 2 and the second inner liner 3 to be fixed in the cavity 4 more stably.

[0040] like Figure 3 to Figure 4 As shown, the first clamping surface 21 includes a first protrusion 211, and the second clamping surface 31 includes a first recessed portion 311 that is engaged with the first protrusion 211. The first recessed portion 311 is located on the inner side of the second inner liner 3. The first protrusion 211 is a circumferentially extending annular protrusion and is in multiple numbers. The distribution and shape of the second protrusion 312 are consistent with the first protrusion 211. The mutual engagement of the annular first protrusion 211 and the first recessed portion 311 can form a stable fixed structure, so that the first inner liner 2 can be fixed in the axial direction.

[0041] like Figures 5 and 6 As shown, the second clamping surface 31 also includes a second protrusion 312 located on the outer side of the second inner liner 3, and the third clamping surface 41 includes a second recessed portion 411 clamped with the second protrusion 312. The second recessed portion 411 is a circumferentially extending annular protrusion and is multiple in number. The distribution and shape of the second protrusion 312 are consistent with the second recessed portion 411. The mutual clamping of the annular second protrusion 312 and the second recessed portion 411 can form a stable fixed structure, so that the structural stability of the second inner liner 3 can be ensured in the axial direction.

[0042] The second clamping surface 31 also includes a first circumferential positioning portion 313 located on the outer side of the second liner 3 and a second circumferential positioning portion 314 located at the bottom of the second liner 3. The third clamping surface 41 also includes a third circumferential positioning portion 412 matched with the first circumferential positioning portion 313 and a fourth circumferential positioning portion 413 matched with the second circumferential positioning portion 314, wherein the first circumferential positioning portion 313 and the third circumferential positioning portion 412 are consistent in shape and are both circumferentially extending strips, the first circumferential positioning portion 313 is located above the second protruding portion 312, and the second circumferential positioning portion 314 and the fourth circumferential positioning portion 413 are consistent in shape and are both radially extending strips. The mutual cooperation of the circumferential positioning portions on the second clamping surface 31 and the third clamping surface 41 can keep the second liner 3 fixed and not prone to circumferential rotation.

[0043] like Figure 8 As shown, a water hole 51 for the passage of a pipe is provided on the first inner liner 2 and the second inner liner 3, and a sealing ring 52 is embedded on the inner wall of the water hole 51. An embedding groove 521 is provided on the outer wall of the sealing ring 52, and the embedding groove 521 is engaged with the inner wall of the water hole 51. The embedding groove 521 structure can ensure that the sealing ring 52 is stably fixed on the water hole 51 and is not prone to falling off or misalignment. The structure of the water hole 51 allows the pipe to pass through, so that the sewage can flow between different inner liner to achieve aerobic or anaerobic reaction, and the sealing ring 52 structure can ensure that the sewage in the inner liner will not leak from the water hole 51. A corresponding water hole 51 is also provided on the tank body 1, and the structure is consistent with that of the first inner liner 2 or the second inner liner 3.

[0044] Among them, a top cover 6 for covering is arranged on the top of the tank body 1, and the top cover 6 is a truncated cone structure, and an opening 61 is arranged at the center of the top cover 6, and the area of ​​the opening 61 is larger than the transverse cross-sectional area of ​​the first inner liner 2. The top cover 6 structure can cover the tank body 1, and the opening 61 structure facilitates the replacement of the filler inside the first inner liner 2 at the center.

[0045] When producing and processing the septic tank, the number and size of the second inner liner 3 and the number of the first inner liner 2 can be determined first according to the required sewage processing technology, and then the first inner liner 2, the second inner liner 3 and the tank body 1 are independently blow-molded. After the independent blow-molding is completed, the second inner liner 3 and the first inner liner 2 are loaded into the cavity 4 of the tank body 1. The first clamping surface 21, the second clamping surface 31 and the third clamping surface 41 can be immediately clamped and fixed after loading, thereby ensuring structural fixation. Through the above structure, the blow molding process can be used for rapid production, while also ensuring structural stability and facilitating specification adjustment.

[0046] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A purification tank that is easy to produce efficiently, comprising a tank body (1), wherein the tank body (1) has a cavity (4) in communication with the outside, and wherein: A first inner liner (2) for sewage reaction is arranged at the center of the cavity (4); a second inner liner (3) for sewage reaction is distributed around the first inner liner (2); one side of the second inner liner (3) is tightly fitted with the first inner liner (2); and the other side of the second inner liner (3) is tightly fitted with the inner wall of the cavity (4); A first clamping surface (21) is provided on the surface of the first inner liner (2), a second clamping surface (31) that can be clamped and fixed with the first clamping surface (21) is provided on the surface of the second inner liner (3), and a third clamping surface (41) that can be clamped and fixed with the second clamping surface is provided on the inner wall of the cavity (4); The first clamping surface (21) comprises a first protruding portion (211), the second clamping surface (31) comprises a first recessed portion (311) engaged with the first protruding portion (211), the first recessed portion (311) is located on the inner side surface of the second inner container (3), the first protruding portion (211) is a circumferentially extending annular protrusion and is a plurality of the first protruding portions (211), and the distribution and shape of the second protruding portions (312) are consistent with those of the first protruding portions (211); The second inner liner (3) is multiple in number and the second inner liner (3) fills the gap between the first inner liner (2) and the inner wall of the cavity (4), and the first inner liner (2) and the second inner liner (3) are both blow-molded; The second engaging surface (31) further comprises a second protruding portion (312) located on the outer side surface of the second inner liner (3); the third engaging surface (41) comprises a second recessed portion (411) engaged with the second protruding portion (312); the second recessed portion (411) is in the form of a circumferentially extending annular protrusion and is plural in number; the distribution and shape of the second protruding portion (312) are consistent with those of the second recessed portion (411).

2. The septic tank for efficient production according to claim 1, characterized in that: The first inner container (2) is circular, and the second inner container (3) is fan-shaped and has the same size.

3. The septic tank for efficient production according to claim 1, characterized in that: The second clamping surface (31) also includes a first circumferential positioning portion (313) located on the outer side surface of the second inner liner (3) and a second circumferential positioning portion (314) located at the bottom of the second inner liner (3); the third clamping surface (41) also includes a third circumferential positioning portion (412) cooperating with the first circumferential positioning portion (313) and a fourth circumferential positioning portion (413) cooperating with the second circumferential positioning portion (314); the first circumferential positioning portion (313) and the third circumferential positioning portion (412) are of the same shape and are both circumferentially extending long strips; the first circumferential positioning portion (313) is located above the second protruding portion (312); the second circumferential positioning portion (314) and the fourth circumferential positioning portion (413) are of the same shape and are both radially extending long strips.

4. The septic tank for efficient production according to claim 1, characterized in that: The first inner liner (2) and the second inner liner (3) are provided with water holes (51) for the passage of pipes, and a sealing ring (52) is embedded on the inner wall of the water holes (51).

5. The septic tank for efficient production according to claim 4, characterized in that: An embedding groove (521) is provided on the outer wall of the sealing ring (52), and the embedding groove (521) is engaged with the inner wall of the water through hole (51).

6. The septic tank for efficient production according to claim 1, characterized in that: A top cover (6) for covering is arranged on the top of the tank body (1), an opening (61) is arranged at the center of the top cover (6), and the area of ​​the opening (61) is larger than the transverse cross-sectional area of ​​the first liner (2).

Images