Double-wall corrugated pipe sealing connection device capable of detecting sewage quality

Abstract

The utility model relates to the technical field of urban and rural municipal building plastic pipes, and discloses a double-wall corrugated pipe sealing and connecting device capable of detecting sewage quality, which comprises two oppositely arranged semicircular pieces, and wedge-shaped fastening devices are arranged on two contact surfaces of the two semicircular pieces; a sensor mounting plate is arranged in the middle of each semicircular part, and two semi-corrugated grooves are formed in the inner walls of the semicircular parts on the two sides of the sensor mounting plate. The corrugated pipe connecting piece can be used for connecting ports of two corrugated pipes, cutting and stretching are not needed, the overall strength of the corrugated pipes is better protected, meanwhile, the inner walls of the middles of the semicircular pieces are flush with the inner walls of the corrugated pipes, stress concentration caused in the sewage flowing process can be effectively reduced, and the service life of the corrugated pipes is prolonged through the arranged rubber sealing gaskets. The sealing connection between the two semicircular pieces and the corrugated pipes can be realized, and the connection between the two corrugated pipes can be better realized; and after being inserted into the trapezoidal groove, the insertion block can be propped against the trapezoidal boss during matching so as to play a role in preventing falling.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipes for urban and rural municipal buildings, in particular to a double-wall corrugated pipe sealing connection device capable of detecting sewage water quality. Background Art

[0002] Existing double-wall corrugated pipe connection systems for rainwater and sewage use a socket-and-spigot connection, as specified in GB / T19472.1-2004, "Buried Polyethylene (PE) Structural Wall Piping Systems, Part 1: Polyethylene Double-Wall Corrugated Pipes." However, due to foundation settlement, the socket-and-spigot connection can shift, leading to seal failure and leaks at the pipe network connection, polluting the environment. Furthermore, most existing pipe connection systems lack intelligent sewage quality monitoring capabilities, failing to meet the current demand for more comprehensive and detailed sewage discharge monitoring. Furthermore, existing pipe sealing joints are often insufficiently strong and have a short service life, posing safety risks.

[0003] Publication number CN 111076019 A discloses an invention patent for a "double-walled corrugated pipe snap-on seal connection device." This patent describes a seal connection device consisting of a double-walled corrugated pipe, a half joint, a rubber seal, and bolts. It also proposes a snap-on seal connection method that secures the connection and prevents it from falling off. However, the half joint is often made of ductile iron, which is easily corroded by sewage. Furthermore, the bolted connection method lacks sustained force on the seal, resulting in a less reliable seal after a period of installation.

[0004] The invention patent of "Bellows Connection Assembly" is disclosed in the publication number CN 108825905A. This patent designs a bellows connection assembly consisting of a connecting cylinder and an adapter. The connecting cylinder contains an annular inner cylinder. The front end of the inner cylinder is provided with multiple notches and forms a first annular tooth structure, forming a mounting cavity with the outer cylinder. The bellows is inserted into the mounting cavity through the inner cylinder. The adapter includes a cap-type connector and a cylindrical tensioning head. The inner side wall of the cap-type connector has an internal thread. The front end of the cylindrical tensioning head is provided with a notch and forms a second annular tooth structure, which engages with the first annular tooth structure. This technical solution makes it easy to connect the bellows to the pipe fitting without cutting and stretching, which is convenient for pipeline connection. However, the structure is complex, the manufacturing process is complex, and the economic efficiency is not good.

[0005] Publication number CN 115930008 A discloses an invention patent for a "corrugated pipe connection device." The patent designs a connection mechanism 1 for fixing the first corrugated pipe body; a connection mechanism 2 for fixing the second corrugated pipe body; and a plurality of positioning plates arranged in a circular array, located between the connection mechanism 1 and the connection mechanism 2, wherein the connection mechanism 1 is located on one side of the connection mechanism 2, and the positioning plates are used to fix the connection mechanism 1 and the connection mechanism 2. The connection mechanism 1 and the connection mechanism 2 are jointly used for the connection operation of the first and second corrugated pipe bodies, which can be docked and disassembled on site, with great convenience and high docking accuracy. However, the shrink tape is used for sealing, which may be difficult to maintain and repair double-wall corrugated pipes with larger diameters, and requires additional manpower and time costs.

[0006] The existing connection device has certain disadvantages when in use. The bolt fixing method cannot continuously provide force to the seal, and the seal is not very reliable after a certain period of installation. The existing pipe connection structure is complex, the manufacturing process is complex, and the economy is not good. The existing seal uses a shrink tape, and the maintenance and inspection of double-wall corrugated pipes with larger diameters may be more difficult and require additional manpower and time costs. At the same time, the existing connection device is added to the pipe port or inside, and stress is concentrated during the flow of sewage, which makes it inconvenient to detect the internal sewage water quality.

[0007] Therefore, a double-walled corrugated pipe sealing connection device capable of detecting sewage water quality is proposed. Utility Model Content

[0008] The main purpose of the utility model is to provide a double-wall corrugated pipe sealing connection device that can detect the water quality of sewage. It can effectively solve the problem that the existing technology of using bolts to fix cannot continuously provide force to the seal, the seal is not very reliable after a certain period of installation, the existing pipeline connection structure is complex, the manufacturing process is complex, and the economy is not good. The existing seal uses a shrink tape, and the maintenance and inspection work for double-wall corrugated pipes with larger diameters may be more difficult and require additional manpower and time costs.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A double-walled corrugated pipe sealing connection device capable of detecting sewage quality, comprising two semicircular members arranged opposite to each other, with wedge-shaped fastening devices provided on both contact surfaces of the two semicircular members;

[0011] A sensor mounting plate is provided in the middle of each semicircular member, and two semi-corrugated grooves are provided on the inner wall of the semicircular member on both sides of the sensor mounting plate. Corrugated grooves are provided at both ends of the inner wall of the semicircular member, and the corrugated grooves are located on one side of the two semi-corrugated grooves. Trapezoidal grooves are provided on the inner bottom surfaces of the two semi-corrugated grooves near the middle of the semicircular member. Rectangular grooves are provided on the contact surfaces of the two semicircular members, and rubber seals are provided inside the trapezoidal grooves and rectangular grooves arranged opposite to each other.

[0012] The rubber seal includes two seals, each seal includes four radial sealing rings, the upper part of the cross-section of the radial sealing ring is trapezoidal, the radial sealing ring is adapted to the trapezoidal groove, the lower part of the cross-section of the radial sealing ring is also trapezoidal, and is used to adapt to the double-wall corrugated pipe, and the radial sealing ring includes a side contact surface and a top contact surface.

[0013] Furthermore, the shape and structure of the two semicircular parts are exactly the same, and a number of reinforcing ribs are arranged at equal intervals on the outside of the semicircular parts. Trapezoidal bosses are provided at both ends of the semicircular parts, and two conical holes are provided on one side of the trapezoidal boss. Two conical pins are installed on one side of the other trapezoidal boss. The conical pins of the two semicircular parts arranged opposite to each other are inserted into the corresponding conical holes. The rectangular groove is located on one side surface of the trapezoidal boss, and a rectangular groove is provided on the rectangular groove.

[0014] Furthermore, the wedge-shaped fastening device is installed on two adjacent trapezoidal bosses, and the wedge-shaped fastening device includes an insert plate, and a clamping plate is provided on both sides of the insert plate. The shape of the insert plate is an isosceles trapezoid, and the shape of the insert plate is the same as the shape of the two adjacent trapezoidal bosses. A rectangular boss is installed at one end of the insert plate, and a trapezoidal column groove is opened inside the rectangular boss, and an insert block is inserted into the inside of the trapezoidal column groove.

[0015] Furthermore, two cylindrical grooves are provided inside the trapezoidal groove, and a cylindrical barrel adapted to the cylindrical groove is fixedly mounted on the outer surface of the semicircular member, and the axis of the cylindrical groove and the axis of the cylindrical barrel are located on the same straight line.

[0016] Furthermore, the seal also includes two axial sealing strips, which are respectively installed at the two ends of the four radial sealing rings. The positions of the four radial sealing rings are adapted to the positions of the trapezoidal grooves, and the radial sealing rings are located inside the trapezoidal grooves. A rectangular strip is installed on one side of the axial sealing strip, and the rectangular strip is located inside the rectangular groove. The axial sealing strip is located inside the rectangular groove.

[0017] Furthermore, each of the radial sealing rings is fixedly mounted with two cylindrical protrusions, and the axial direction of the cylindrical protrusions is perpendicular to the plane where the two axial sealing strips are located, and each of the cylindrical protrusions is correspondingly arranged inside the cylindrical groove.

[0018] Furthermore, a plurality of cylindrical bosses are installed on the outer wall of the sensor mounting plate, a threaded hole is provided at the inner upper end of the cylindrical boss, a light hole is provided at the inner lower end of the cylindrical boss, and the light hole passes through the sensor mounting plate, and a rubber gasket is provided between the threaded hole and the light hole.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The utility model can be used for connecting two bellows ports without cutting and stretching, which better protects the overall strength of the bellows. At the same time, the inner wall of the middle part of the semicircular part is flush with the inner wall of the bellows, which can effectively reduce the stress concentration caused by the flow of sewage and alleviate the impact and vibration of the water flow on the pipe wall. The double-walled corrugated pipe connection device can be used to place sensors for sewage quality detection. The setting that the inner wall of the middle part of the semicircular part is flush with the inner wall of the bellows can better meet the needs of sewage detection and better protect the sensor. The part where the sensor is placed needs to be designed with a threaded hole. In order to reduce material consumption, a cylindrical boss is set at the part where the sensor is placed to ensure a certain thickness so that the threaded part can work normally.

[0021] 2. The utility model can realize the sealing connection between the two semicircular parts and the bellows by setting the rubber sealing gasket, and better realize the connection between the two bellows. A trapezoidal groove is provided on the inner wall of the semicircular part, and the cross section of the radial sealing ring is set to an eight-shaped shape. The upper cross section of the radial sealing ring is trapezoidal, and the radial sealing ring is adapted to the trapezoidal groove. The lower cross section of the radial sealing ring is also trapezoidal, which is used to adapt to the double-walled corrugated pipe. The top surface and both sides are in contact with the corrugated outer wall at the same time, and the triple seal can achieve the best sealing effect; the semi-corrugated groove fits the corrugated arc of the outer wall of the double-walled corrugated pipe, so that the pipe is not easy to separate when a certain movement and deformation occur, and the connection is reliable and the structure is stable;

[0022] 3. The outer wall of the semicircular part of the double-wall corrugated pipe connection device is provided with multiple reinforcing ribs, which effectively ensures the mechanical strength of the semicircular part and improves the service strength and fatigue life of the utility model patent.

[0023] 4. After the plug is inserted into the trapezoidal groove, it can press against the trapezoidal boss during mating to prevent it from falling off.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the overall structure of a double-walled corrugated pipe sealing connection device that can detect sewage water quality in the utility model.

[0026] Figure 2 The utility model is a schematic diagram of the exploded structure of a double-walled corrugated pipe sealing connection device that can detect sewage water quality.

[0027] Figure 3 This is a schematic diagram of the overall structure of two semicircular parts of a double-walled corrugated pipe sealing connection device that can detect sewage water quality in the utility model.

[0028] Figure 4 This is an enlarged view of a semicircular piece of a double-walled corrugated pipe sealing connection device that can detect sewage water quality in the utility model.

[0029] Figure 5 The utility model is a front view of a semicircular component of a double-walled corrugated pipe sealing connection device capable of detecting sewage water quality.

[0030] Figure 6 The utility model is a partial cross-sectional view of a semicircular component of a double-walled corrugated pipe sealing connection device capable of detecting sewage water quality.

[0031] Figure 7 This is one of the partial enlarged views of a double-walled corrugated pipe sealing connection device for detecting sewage water quality according to the present invention.

[0032] Figure 8 This is the second partial enlarged view of a double-walled corrugated pipe sealing connection device capable of detecting sewage water quality according to the present invention.

[0033] Figure 9 This is a schematic diagram of the overall structure of two rubber seals of a double-walled corrugated pipe sealing connection device that can detect sewage water quality in the utility model.

[0034] Figure 10 This is an enlarged view of the rubber seal of a double-walled corrugated pipe sealing connection device that can detect sewage water quality in the utility model.

[0035] Figure 11 The utility model is a partial cross-sectional view of a rubber seal of a double-walled corrugated pipe sealing connection device capable of detecting sewage water quality.

[0036] Figure 12 This utility model is a double-walled corrugated pipe sealing connection device that can detect sewage water quality. Figure 11 A magnified view of center.

[0037] Figure 13 This is a top view of a double-walled corrugated pipe sealing connection device that can detect sewage water quality according to the present utility model.

[0038] In the figure: 11, semicircular part; 12, trapezoidal boss; 13, rectangular groove; 14, rectangular groove; 15, conical pin; 16, conical hole; 17, corrugated groove; 18, semi-corrugated groove; 19, trapezoidal groove; 110, cylindrical groove; 111, cylindrical tube; 2, plug-in plate; 21, rectangular boss; 22, trapezoidal column groove; 23, plug-in block; 3, cylindrical boss; 31, threaded hole; 32, smooth hole; 33, rubber gasket; 5, rubber seal; 51, axial sealing strip; 52, radial sealing ring; 53, rectangular strip; 54, cylindrical protrusion; 55, side contact surface; 56, top contact surface. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] like Figure 1-13 As shown, a double-walled corrugated pipe sealing connection device capable of detecting sewage quality comprises two semicircular members 11 arranged opposite to each other, with wedge-shaped fastening devices provided on both contact surfaces of the two semicircular members 11;

[0041] A sensor mounting plate is provided in the middle of each semicircular member 11. Two semi-corrugated grooves 18 are provided on the inner wall of the semicircular member 11 on both sides of the sensor mounting plate. Corrugated grooves 17 are provided at both ends of the inner wall of the semicircular member 11, and the corrugated grooves 17 are located on one side of the two semi-corrugated grooves 18. Trapezoidal grooves 19 are provided on the inner bottom surfaces of the two semi-corrugated grooves 18 near the middle of the semicircular member 11. Rectangular grooves 13 are provided on the contact surfaces of the two semicircular members 11. Rubber seals 5 are provided inside the trapezoidal grooves 19 and the rectangular grooves 13 that are arranged opposite to each other.

[0042] The rubber seal 5 includes two seals, each of which includes four radial sealing rings 52. The upper part of the cross-section of the radial sealing ring 52 is trapezoidal, and the radial sealing ring 52 is adapted to the trapezoidal groove 19. The lower part of the cross-section of the radial sealing ring 52 is also trapezoidal, and is used to adapt to the double-wall corrugated pipe. The radial sealing ring 52 includes a side contact surface 55 and a top contact surface 56.

[0043] It should be noted that if Figure 6-7As shown, when installing the double-walled corrugated pipe connection device, the two double-walled corrugated pipes to be connected are connected and used. The two outer lines at the end of one double-walled corrugated pipe are placed in the two radial sealing rings 52 on the same side, and the two outer lines at the end of the other double-walled corrugated pipe are placed in the two radial sealing rings 52 on the other side. At this time, the top of the outer lines of the double-walled corrugated pipe abuts against the lower ends of the side contact surface 55 and the top contact surface 56. The side contact surface 55 and the top contact surface 56 made of rubber material will deform, making the connection and seal of the double-walled corrugated pipe tighter. The cross-section of the radial sealing ring 52 is trapezoidal at the top, and is tightly connected to the double-walled corrugated pipe connection device through the trapezoidal top surface. Both sides are in contact at the corrugated outer wall at the same time, and the triple seal can achieve the best sealing effect.

[0044] Specifically, the top surface of the radial sealing ring 52 and the trapezoidal groove 19, and the bottom surface of the radial sealing ring 52 and the double-walled corrugated pipe are both interference fits.

[0045] The sensor mounting plate is flush with the inner wall of the corrugated pipe, which can effectively reduce the stress concentration caused by the flow of sewage and alleviate the impact and vibration of the water flow on the pipe wall.

[0046] The two semicircular members 11 have identical shapes and structures. Several reinforcing ribs are evenly spaced on the exterior of each semicircular member 11. Trapezoidal bosses 12 are provided at each end of each semicircular member 11. Two conical holes 16 are defined on one side of each trapezoidal boss 12. Two conical pins 15 are mounted on one side of the other trapezoidal boss 12. The conical pins 15 of the two opposing semicircular members 11 are inserted into the corresponding conical holes 16. A rectangular groove 13 is located on one side of each trapezoidal boss 12, and a rectangular slot 14 is defined within the rectangular groove 13. The provision of the conical pins 15 and conical holes 16 facilitates disassembly of the two semicircular members 11 and provides a certain degree of fixation and positioning.

[0047] In some embodiments, a plurality of reinforcing ribs are provided on the outer wall of the double-wall corrugated pipe connection device, which effectively ensures the mechanical strength of the semicircular part and improves the service life of the product of the utility model.

[0048] The wedge-shaped fastening device is installed on two adjacent trapezoidal bosses 12. The wedge-shaped fastening device includes an insert plate 2. A clamping plate is provided on both sides of the insert plate 2. The shape of the insert plate 2 is an isosceles trapezoid. The shape of the insert plate 2 is the same as the shape of the two adjacent trapezoidal bosses 12. A rectangular boss 21 is installed at one end of the insert plate 2. A trapezoidal column groove 22 is provided inside the rectangular boss 21. An insert block 23 is inserted into the interior of the trapezoidal column groove 22.

[0049] The size of the trapezoidal boss 12 changes gradually from one end to the other, as shown in FIG. Figure 13As shown, this design facilitates the installation of the plug-in board 2 on the one hand, and on the other hand, makes the plug-in board 2 and the trapezoidal boss 12 more tightly connected. Insert the large end of the plug-in board 2 from the small end of the trapezoidal boss 12 until the installation is completed, and then insert the plug-in block 23 into the trapezoidal column groove 22 to achieve the installation and fixation of the plug-in board 2 on the trapezoidal boss 12. The shape of the plug-in block 23 is trapezoidal and adapts to the trapezoidal column groove 22. This makes the plug-in block 23 gradually drive the plug-in board 2 to move toward one end of the trapezoidal column groove 22 during the insertion process of the trapezoidal column groove 22, making the plug-in board 2 and the trapezoidal boss 12 more tightly connected. After the plug-in block 23 is inserted into the trapezoidal groove 22, it can press against the trapezoidal boss 12 during the engagement to prevent it from falling off.

[0050] In some embodiments, two cylindrical grooves 110 are opened inside the trapezoidal groove 19, and a cylindrical tube 111 adapted to the cylindrical groove 110 is fixedly installed on the outer surface of the semicircular member 11, and the axis of the cylindrical groove 110 and the axis of the cylindrical tube 111 are located on the same straight line.

[0051] The seal also includes two axial sealing strips 51, which are respectively installed at the two ends of four radial sealing rings 52. The positions of the four radial sealing rings 52 are adapted to the positions of the trapezoidal grooves 19, and the radial sealing rings 52 are located inside the trapezoidal grooves 19. A rectangular strip 53 is installed on one side of the axial sealing strip 51, and the rectangular strip 53 is located inside the rectangular groove 14. The axial sealing strip 51 is located inside the rectangular groove 13.

[0052] Two cylindrical protrusions 54 are fixedly mounted on each radial sealing ring 52, and the axis of each cylindrical protrusion 54 is perpendicular to the plane of the two axial sealing strips 51. Each cylindrical protrusion 54 is disposed within a corresponding cylindrical groove 110. The provision of the cylindrical protrusions 54 allows the rubber seal 5 to be better positioned and controlled within the semicircular member 11.

[0053] Several cylindrical bosses 3 are installed on the outer wall of the sensor mounting plate. A threaded hole 31 is provided at the upper end of the inner part of the cylindrical boss 3, and a light hole 32 is provided at the lower end of the inner part of the cylindrical boss 3. The light hole 32 passes through the sensor mounting plate, and a rubber gasket 33 is provided between the threaded hole 31 and the light hole 32.

[0054] Specifically, the cylindrical boss 3 is used to mount a sensor for sewage quality monitoring. The sensor placement area requires a threaded hole 31. To reduce material requirements, the cylindrical boss 3 is designed to ensure a certain thickness for the threaded portion to function properly. A smaller aperture 32 is provided at the lower end for the sensor. A rubber gasket 33 is placed between the threaded hole 31 and the aperture 32 for sealing.

[0055] The sensors can detect the COD value, turbidity, ammonia nitrogen content, pH value and water temperature in sewage. The sensor model for detecting COD value is HD-COD600X COD sensor, the sensor model for detecting turbidity is HD-SS300X turbidity sensor, the sensor model for detecting ammonia nitrogen content is 620911 ammonia nitrogen sensor, the sensor model for detecting pH value is PCE-PH20-ICApH meter, and the sensor model for detecting water temperature is Y-100 intelligent temperature transmitter.

[0056] It should be noted that the utility model is a double-walled corrugated pipe sealing connection device that can detect the water quality of sewage. When in use, first, each seal is installed in the corresponding semicircular part 11, so that the cylindrical protrusion 54 on the seal is correspondingly inserted into the cylindrical groove 110 of the semicircular part 11, which makes the rubber seal 5 better limited and controlled inside the semicircular part 11. Then, the two outer lines at the end of a double-walled corrugated pipe are placed in the two radial sealing rings 52 on the same side, and the two outer lines at the end of the other double-walled corrugated pipe are placed in the two radial sealing rings 52 on the other side. Then, the other half of the semicircular part 11 with the seal installed is brought close to the two double-walled corrugated pipes. At this time, the conical pin 15 on the contact surface of one semicircular part 11 and the conical hole 16 on the contact surface of the other semicircular part 11 are plugged and adapted to each other, which plays a role of limiting and fixing.

[0057] The rectangular groove 14 in the rectangular groove 13 and the rectangular strip 53 on the axial sealing strip 51 are plugged and adapted to each other, so as to better fix the rubber seal 5; the top surface of the radial sealing ring 52 and the trapezoidal groove 19, and the bottom surface of the radial sealing ring 52 and the double-walled corrugated pipe are both interference fits;

[0058] The top of the outer corrugation of the double-walled bellows abuts the lower ends of the side contact surface 55 and the top contact surface 56. The rubber material of the side contact surface 55 and the top contact surface 56 will deform, making the connection and seal of the double-walled bellows tighter. The cross-section of the radial sealing ring 52 is trapezoidal at the top, and it is tightly connected to the double-walled bellows connection device through the trapezoidal top surface. Both sides simultaneously contact the outer wall of the corrugation, and the triple seal can achieve the best sealing effect.

[0059] Next, the wedge-shaped fastening device is installed. During installation, the large end of the plugboard 2 is inserted from the small end of the trapezoidal boss 12 until the plugboard 2 is completely inserted into the trapezoidal boss 12, and the plug block 23 is inserted into the trapezoidal column groove 22 to achieve the installation and fixation of the plugboard 2 on the trapezoidal boss 12. The shape of the plug block 23 is trapezoidal and adapts to the trapezoidal column groove 22. This makes it possible for the plug block 23 to gradually drive the plugboard 2 toward one end of the trapezoidal column groove 22 during the insertion process of the trapezoidal column groove 22, so that the plugboard 2 and the trapezoidal boss 12 are connected more tightly. After the plug block 23 is inserted into the trapezoidal column groove 22, it can press against the trapezoidal boss 12 during the engagement to prevent it from falling off.

[0060] The sensor is installed in the cylindrical boss 3 to detect the sewage quality. The location where the sensor is placed needs to be designed with a threaded hole 31. In order to reduce material consumption, the cylindrical boss 3 is set at the location where the sensor is placed to ensure a certain thickness so that the threaded part can work normally. A small diameter optical hole 32 is set at the lower end for placing the sensor. A rubber gasket 33 is placed between the threaded hole 31 and the optical hole 32 for sealing.

[0061] The connection at the two bellows ports does not require cutting and stretching, which better protects the overall strength of the bellows. At the same time, the inner wall of the middle part of the semicircular part 11 is flush with the inner wall of the bellows, which can effectively reduce the stress concentration caused by the flow of sewage and alleviate the impact and vibration of the water flow on the pipe wall. This double-wall corrugated pipe connection device can be used to place sensors for sewage quality detection needs. The setting that the inner wall of the middle part 11 is flush with the inner wall of the bellows can better meet the sewage detection needs and better protect the sensor, which is more practical.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-walled corrugated pipe sealing connection device capable of detecting sewage quality, characterized by: It comprises two semicircular pieces (11) arranged opposite to each other, and two contact surfaces of the two semicircular pieces (11) are both provided with wedge-shaped fastening devices; A sensor mounting plate is provided in the middle of each semicircular member (11), two semi-corrugated grooves (18) are provided on the inner wall of the semicircular member (11) on both sides of the sensor mounting plate, and corrugated grooves (17) are provided at both ends of the inner wall of the semicircular member (11), and the corrugated grooves (17) are located on one side of the two semi-corrugated grooves (18), and the inner bottom surfaces of the two semi-corrugated grooves (18) near the middle of the semicircular member (11) are provided with trapezoidal grooves (19), and rectangular grooves (13) are provided at the contact surfaces of the two semicircular members (11), and rubber sealing members (5) are provided inside the trapezoidal grooves (19) and the rectangular grooves (13) arranged opposite to each other; The rubber seal (5) includes two seals, each seal includes four radial sealing rings (52), the upper section of the radial sealing ring (52) is trapezoidal, the radial sealing ring (52) is adapted to the trapezoidal groove (19), the lower section of the radial sealing ring (52) is also trapezoidal, and is adapted to the double-wall corrugated pipe, and the radial sealing ring (52) includes a side contact surface (55) and a top contact surface (56).

2. The double-walled corrugated pipe sealing connection device capable of detecting sewage quality according to claim 1, characterized in that: The two semicircular parts (11) have exactly the same shape and structure. A plurality of reinforcing ribs are arranged at equal intervals on the outside of the semicircular part (11). Trapezoidal bosses (12) are arranged at both ends of the semicircular part (11). Two conical holes (16) are provided on one side of the trapezoidal boss (12). Two conical pins (15) are installed on one side of the other trapezoidal boss (12). The conical pins (15) of the two semicircular parts (11) arranged opposite to each other are inserted into the corresponding conical holes (16). The rectangular groove (13) is located on one side surface of the trapezoidal boss (12), and a rectangular groove (14) is provided on the rectangular groove (13).

3. The double-walled corrugated pipe sealing connection device capable of detecting sewage quality according to claim 2, characterized in that: The wedge-shaped fastening device is installed on two adjacent trapezoidal bosses (12), and the wedge-shaped fastening device includes an inserting plate (2), and a clamping plate is provided on both sides of the inserting plate (2). The shape of the inserting plate (2) is an isosceles trapezoid, and the shape of the inserting plate (2) is the same as the shape of the two adjacent trapezoidal bosses (12). A rectangular boss (21) is installed at one end of the inserting plate (2), and a trapezoidal column groove (22) is provided inside the rectangular boss (21), and an insert block (23) is inserted into the interior of the trapezoidal column groove (22).

4. The double-wall corrugated pipe sealing connection device capable of detecting sewage quality according to claim 1, characterized in that: Two cylindrical grooves (110) are provided inside the trapezoidal groove (19); a cylindrical barrel (111) adapted to the cylindrical groove (110) is fixedly mounted on the outer surface of the semicircular member (11); the axis of the cylindrical groove (110) and the axis of the cylindrical barrel (111) are located on the same straight line.

5. The double-walled corrugated pipe sealing connection device capable of detecting sewage quality according to claim 2, characterized in that: The sealing member further comprises two axial sealing strips (51), the two axial sealing strips (51) being respectively mounted at the two ends of four radial sealing rings (52), the positions of the four radial sealing rings (52) being adapted to the positions of the trapezoidal grooves (19), and the radial sealing rings (52) being located inside the trapezoidal grooves (19), a rectangular strip (53) being mounted on one side of the axial sealing strip (51), the rectangular strip (53) being located inside the rectangular grooves (14), and the axial sealing strip (51) being located inside the rectangular grooves (13).

6. The double-walled corrugated pipe sealing connection device capable of detecting sewage quality according to claim 4, characterized in that: Two cylindrical protrusions (54) are fixedly mounted on each radial sealing ring (52), and the axial direction of the cylindrical protrusions (54) is perpendicular to the plane where the two axial sealing strips (51) are located. Each cylindrical protrusion (54) is respectively arranged inside the cylindrical groove (110).

7. The double-walled corrugated pipe sealing connection device capable of detecting sewage quality according to claim 4, characterized in that: The outer wall of the sensor mounting plate is provided with a plurality of cylindrical bosses (3), the inner upper end of the cylindrical boss (3) is provided with a threaded hole (31), the inner lower end of the cylindrical boss (3) is provided with a light hole (32), and the light hole (32) passes through the sensor mounting plate, and a rubber gasket (33) is provided between the threaded hole (31) and the light hole (32).

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