Sealing structure of septic tank

Abstract

The utility model relates to the technical field of septic tanks, and discloses a septic tank sealing structure which comprises a septic tank body and a sealing cover, an opening is formed in the upper portion of the septic tank body, the sealing cover is used for covering the opening, a sealing groove is formed in the outer wall of the top of the opening, and a sealing rubber ring is installed on the inner wall of the sealing groove; the outer wall of the bottom edge of the sealing cover is provided with an annular bulge, the annular bulge is matched and clamped with the sealing groove, and a locking mechanism is arranged on the outer walls of the septic tank body and the sealing cover and is used for firmly locking the sealing cover on the septic tank body. The sealing performance of the septic tank is effectively improved, the problems of peculiar smell emission, sewage leakage, methane leakage and the like in the septic tank can be well prevented, and the surrounding environment is well protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of septic tanks, in particular to a sealing structure of a septic tank. BACKGROUND

[0002] The septic tank is a device for treating and filtering excrement, which is widely used in daily life, industrial production and various building facilities. However, the sealing structure of the traditional septic tank often has many defects;

[0003] On the one hand, the existing sealing method of the septic tank mainly relies on the conventional method of rubber sealing strip between the cover plate and the wellhead, but in the long-term use process, due to the influence of external environmental factors (such as temperature change, wind and sun, etc.) and the change of gas pressure inside the septic tank, sewage fluctuation, etc., the rubber sealing strip is easy to age and deform, which leads to the gradual deterioration of the sealing effect, so that the peculiar smell in the septic tank is easy to spread out, causing pollution to the surrounding environment, and there is also a safety hazard of methane leakage.

[0004] On the other hand, when the septic tank is periodically cleaned or maintained, the cover plate needs to be frequently opened and closed, and the existing sealing structure is easy to damage the sealing parts during the opening and closing operation, which further affects the sealing effect, and the reliability of resealing after each opening is difficult to guarantee, which increases the management difficulty and maintenance cost in the operation process of the septic tank, therefore, a sealing structure of a septic tank is proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] In order to solve the problems of poor sealing effect, easy damage and inconvenient operation and maintenance of the existing sealing structure of the septic tank, the present application provides a sealing structure of a septic tank.

[0006] The sealing structure of the septic tank provided by the present application adopts the following technical scheme:

[0007] A sealing structure of a septic tank, comprising a septic tank body and a sealing cover, the upper part of the septic tank body is provided with an opening, the sealing cover is used for covering the opening, the top outer wall of the opening is provided with a sealing groove, the inner wall of the sealing groove is installed with a sealing rubber ring, the bottom edge outer wall of the sealing cover is provided with an annular protrusion, and the annular protrusion is matched and connected with the sealing groove;

[0008] The outer wall of the septic tank body and the sealing cover is provided with a locking mechanism for firmly locking the sealing cover on the septic tank body, the locking mechanism comprises an arc-shaped pressing rod and a screw rod, the outer wall of the middle section of the arc-shaped pressing rod is provided with a screw block, the screw rod is threadedly connected to the outer wall of the screw block, the bottom end of the screw rod is rotatably connected to the middle outer wall of the top of the sealing cover through a connecting block, and the top end of the screw rod is fixedly connected with a handle, the top outer wall of the septic tank body is fixedly connected with a fixed column one and a fixed column two, one end of the arc-shaped pressing rod is rotatably connected to the outer wall of the fixed column one, and the other end of the arc-shaped pressing rod is clamped with the fixed column two through a bayonet.

[0009] Preferably, the top outer wall of the sealing cover is provided with a vent hole, and a one-way valve is mounted on the inner wall of the vent hole for allowing gas to be discharged from the sealing cover in one direction.

[0010] Preferably, the top outer wall of the septic tank body is fixedly connected with a sealing block, the opening is located in the inside of the sealing block, the edge outer wall of the sealing cover is fixedly connected with a sealing cover, and the sealing cover is clamped with the sealing block.

[0011] Preferably, the two side inner walls of the sealing block are bonded with two hollow rubber rings, two tight grooves are formed in the two side outer walls of the sealing cover, and the hollow rubber rings are clamped with the tight grooves.

[0012] Preferably, the sealing rubber ring is made of aging-resistant and acid-alkali-resistant rubber material, and the cross section shape of the sealing rubber ring is trapezoidal, and the upper base is matched with the bottom outer wall of the annular protrusion.

[0013] In summary, the present application has the following beneficial technical effects:

[0014] 1. The multiple sealing measures such as the sealing rubber ring, the locking mechanism and the hollow rubber ring effectively improve the sealing performance of the septic tank, can well prevent the problems such as odor emission, sewage leakage and biogas leakage in the septic tank, and play a good protective role on the surrounding environment;

[0015] 2. The trapezoidal cross section sealing rubber ring made of aging-resistant and acid-alkali-resistant rubber material can better adapt to environmental changes and pressure changes during long-term use, maintain good sealing effect, prolong the service life of the sealing rubber ring, and reduce the sealing problems caused by the failure of the sealing rubber ring;

[0016] 3. The design of the locking mechanism facilitates the opening and closing operation of the sealing cover, and the sealing parts are not easy to be damaged during the opening and closing process, thereby improving the convenience of septic tank maintenance and reducing the maintenance cost;

[0017] 4. The one-way valve in the vent hole can automatically adjust the discharge of gas according to the change of gas pressure in the septic tank, balance the gas pressure in the septic tank, further enhance the overall sealing effect, and ensure the safety and stability of the septic tank operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall schematic diagram of the application embodiment;

[0019] Figure 2 is the three-dimensional schematic diagram of the application embodiment;

[0020] Figure 3 is the internal cross-sectional view of the application embodiment;

[0021] Figure 4 is Figure 3 is an enlarged schematic diagram of the structure at A in the application embodiment.

[0022] Reference signs: 1, septic tank body; 2, opening; 3, sealing cover; 4, fixed column one; 5, arc-shaped pressing rod; 6, fixed column two; 7, bayonet; 8, screw rod; 9, screw block; 10, handle; 11, connecting block; 12, vent hole; 13, one-way valve; 14, sealing groove; 15, sealing rubber ring; 16, annular protrusion; 17, sealing cover; 18, sealing block; 19, tight groove; 20, hollow rubber ring. DETAILED DESCRIPTION

[0023] The following will be described in detail in combination with the accompanying Figures 1-4 The application is further described in detail.

[0024] The application embodiment discloses a sealing structure of a septic tank. Referring to Figures 1-4 A sealing structure of a septic tank, comprising a septic tank body 1 and a sealing cover 3, the septic tank body 1 is provided with an opening 2 at the top, the sealing cover 3 is used to cover the opening 2, the top outer wall of the opening 2 is provided with a sealing groove 14, the inner wall of the sealing groove 14 is installed with a sealing rubber ring 15, the bottom edge outer wall of the sealing cover 3 is provided with an annular protrusion 16, and the annular protrusion 16 is matched and connected with the sealing groove 14.

[0025] A locking mechanism is installed on the outer wall of the septic tank body 1 and the sealing cover 3, which is used to firmly lock the sealing cover 3 on the septic tank body 1, the locking mechanism comprises an arc-shaped pressing rod 5 and a screw rod 8, the middle segment outer wall of the arc-shaped pressing rod 5 is provided with a screw block 9, the screw rod 8 is threadedly connected to the outer wall of the screw block 9, the bottom end of the screw rod 8 is rotationally connected to the top middle outer wall of the sealing cover 3 through a connecting block 11, and the top end of the screw rod 8 is fixedly connected with a handle 10, the top outer wall of the septic tank body 1 is fixedly connected with a fixed column one 4 and a fixed column two 6, one end of the arc-shaped pressing rod 5 is rotationally connected to the outer wall of the fixed column one 4, and the other end is connected with the fixed column two 6 through a bayonet 7.

[0026] The top outer wall of the sealing cover 3 is provided with a vent hole 12, and the inner wall of the vent hole 12 is mounted with a one-way valve 13 for allowing gas to be discharged from the sealing cover 3 in one direction, and when the gas pressure in the septic tank body 1 is increased, the gas can be discharged to the outside through the one-way valve 13, while preventing outside air from entering the septic tank body 1.

[0027] The top outer wall of the septic tank body 1 is fixedly connected with a sealing block 18, and the opening 2 is located inside the sealing block 18. The edge outer wall of the sealing cover 3 is fixedly connected with a sealing cover 17, and the sealing cover 17 is adapted to be clamped with the sealing block 18.

[0028] The two sides of the inner wall of the sealing block 18 are bonded with two hollow rubber rings 20, and the two sides of the outer wall of the sealing cover 17 are provided with two tight grooves 19. The hollow rubber ring 20 is adapted to be clamped with the tight groove 19. When the sealing cover 17 is clamped into the sealing block 18, the outer wall of the sealing cover 17 extrudes the two hollow rubber rings 20. When the two tight grooves 19 of the outer wall of the sealing cover 17 correspond to the hollow rubber rings 20, the elastic force on the surface of the hollow rubber ring 20 forms a tension force and tightly adheres to the inner wall of the tight groove 19, thereby ensuring the sealing integrity between the entire sealing cover 3 and the septic tank body 1.

[0029] The sealing rubber ring 15 is made of aging-resistant and acid-alkali-resistant rubber material, and the cross-sectional shape is trapezoidal. The upper base is adapted to the bottom outer wall of the annular protrusion 16. This trapezoidal structure can better fill the gap between the annular protrusion 16 and the sealing groove 14 when subjected to pressure, thereby improving the sealing effect.

[0030] The implementation principle of the sealing structure of the septic tank is as follows: when the sealing structure of the septic tank is installed, first, the sealing rubber ring 15 is placed in the sealing groove 14 on the edge of the opening 2 of the septic tank body 1, and then the sealing cover 3 is covered on the opening 2 of the septic tank body 1, so that the annular protrusion 16 on the lower edge of the sealing cover 3 is embedded in the sealing groove 14 and extrudes the sealing rubber ring 15, thereby achieving preliminary sealing; at the same time that the sealing cover 3 covers the opening 2, the sealing cover 17 is clamped into the sealing block 18, and the outer wall of the sealing cover 17 extrudes the two hollow rubber rings 20; when the two close grooves 19 on the outer wall of the sealing cover 17 correspond to the hollow rubber rings 20, the elastic force on the surface of the hollow rubber ring 20 forms a tension force that is tightly attached to the inner wall of the close groove 19, thereby further ensuring the sealing integrity between the sealing cover 3 and the septic tank body 1. Then, through the locking mechanism, when the sealing cover 3 covers the opening 2, the arc-shaped pressure rod 5 and the sealing cover 3 are driven to rotate around the fixed column one 4 by the handle 10, the screw rod 8 and the connecting block 11, until the sealing cover 3 covers the opening 2, and then the other end of the arc-shaped pressure rod 5 is clamped with the fixed column two 6 through the bayonet 7; rotating the handle 10 drives the screw rod 8 to rotate in the screw block 9; at this time, the screw block 9 drives the screw rod 8 to press downward, and the bottom end of the screw rod 8 presses the sealing cover 3 through the connecting block 11, while the screw block 9 moves upward to drive the two ends of the arc-shaped pressure rod 5 to abut against the inner wall of the top end of the fixed column one 4 and the fixed column two 6 respectively, thereby firmly locking the sealing cover 3 and further enhancing the stability of the sealing.

[0031] During normal operation of the septic tank, when gas is generated in the septic tank due to decomposition of sewage and the like, causing the gas pressure to rise, the gas can be discharged to the outside through the one-way valve 13 in the vent hole 12 on the top of the sealing cover 3; due to the one-way conduction characteristic of the one-way valve 13, outside air cannot enter the septic tank, thereby effectively preventing the outside air from entering the septic tank and causing odor emission and methane leakage risks while ensuring that the gas in the septic tank can be timely discharged to maintain pressure balance.

[0032] When it is necessary to open the sealing cover 3 to clean or maintain the septic tank, the handle 10 is simply rotated in the opposite direction, the screw rod 8 is lifted in the screw block 9, the screw block 9 moves downward on the outer wall of the screw rod 8, the two ends of the arc-shaped pressure rod 5 no longer abut against the top ends of the fixed column one 4 and the fixed column two 6, the sealing cover 3 can be pulled upward by the screw rod 8, the bayonet 7 is disconnected from the fixed column two 6, and the arc-shaped pressure rod 5 rotates around the fixed column one 4, so that the sealing cover 3 can be easily removed, the operation is simple, and the damage risk of the sealing rubber ring and other sealing components during opening and closing is small.

[0033] Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0034] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0035] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

[0036] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application, should be covered within the scope of protection of the present application.

Claims

1. A sealing structure of a septic tank comprising a septic tank body (1) and a sealing cover (3), characterized in that: The upper part of the septic tank body (1) is provided with an opening (2), the sealing cover (3) is used for covering the opening (2), the top outer wall of the opening (2) is provided with a sealing groove (14), the inner wall of the sealing groove (14) is provided with a sealing rubber ring (15), the bottom edge outer wall of the sealing cover (3) is provided with an annular protrusion (16), and the annular protrusion (16) is matched and clamped with the sealing groove (14). The outer wall of the septic tank body (1) and the sealing cover (3) is provided with a locking mechanism for firmly locking the sealing cover (3) on the septic tank body (1), the locking mechanism comprises an arc-shaped pressing rod (5) and a screw rod (8), the middle segment outer wall of the arc-shaped pressing rod (5) is provided with a screw block (9), the screw rod (8) is threadedly connected to the outer wall of the screw block (9), the bottom end of the screw rod (8) is rotatably connected to the top middle outer wall of the sealing cover (3) through a connecting block (11), and the top end of the screw rod (8) is fixedly connected with a handle (10); the top outer wall of the septic tank body (1) is fixedly connected with a fixed column one (4) and a fixed column two (6), one end of the arc-shaped pressing rod (5) is rotatably connected to the outer wall of the fixed column one (4), and the other end is clamped with the fixed column two (6) through a bayonet (7).

2. A septic tank sealing structure according to claim 1, wherein: The top outer wall of the sealing cover (3) is provided with a vent hole (12), and the inner wall of the vent hole (12) is provided with a one-way valve (13) for allowing gas to be discharged from the sealing cover (3) in one direction.

3. A septic tank sealing structure according to claim 1, wherein: The top outer wall of the septic tank body (1) is fixedly connected with a sealing block (18), the opening (2) is located in the sealing block (18), and the edge outer wall of the sealing cover (3) is fixedly connected with a sealing cover (17), the sealing cover (17) is matched and clamped with the sealing block (18).

4. A septic tank sealing structure according to claim 3, wherein: The two side inner walls of the sealing block (18) are bonded with two hollow rubber rings (20), the two side outer walls of the sealing cover (17) are provided with two tight grooves (19), and the hollow rubber ring (20) is matched and clamped with the tight groove (19).

5. A septic tank sealing structure according to claim 1, characterized in that: The sealing rubber ring (15) is made of aging-resistant and acid-and-alkali-resistant rubber material, and the cross section shape is trapezoidal, and the upper bottom is matched with the bottom outer wall of the annular protrusion (16).

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