Inspection well

Abstract

The present invention discloses an inspection well, comprising: a concrete well body, comprising a wall body and a accommodating space enclosed by the wall body, the wall body being provided with a water inlet and outlet penetrating the wall body; a plastic embedded part, intersecting with the concrete well body, plugged into the water inlet and outlet and extending into the accommodating space, the pipe diameter of the plastic embedded part matching the diameter of the water inlet and outlet, and the end of the plastic embedded part away from the wall body being provided with a connecting port for connecting with a pipeline; a pipeline connecting port, covering the outer peripheral side of the plastic embedded part and being integrally formed with the wall body of the concrete well body, so as to avoid leakage between the pipeline connecting port and the inspection well, thereby preventing the occurrence of environmental pollution problems due to leakage of liquids such as sewage, and protecting the ecological environment.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal construction, and in particular relates to an inspection well. Background Art

[0002] At present, in the construction of municipal pipelines, traditional pipelines and inspection wells are generally connected together through two methods. One method is to directly pour the pipeline and the inspection well together with concrete, and the other method is to seal the connection between the pipeline and the inspection well with mortar. However, due to the different materials of the pipeline and the inspection well, or because the pipeline and the inspection well are not poured at one time, it is difficult to combine them together, resulting in cracks at the joint between the pipeline and the inspection well, and the connection between the pipeline and the pipeline is not tightly sealed, which will cause leakage to varying degrees, resulting in sewage leakage, or sewage mixing into groundwater, causing environmental pollution, or increasing sewage treatment costs. Summary of the invention

[0003] The embodiment of the present invention provides an inspection well, which can avoid side leakage between a pipeline connection port and a concrete well body, prevent the occurrence of environmental pollution problems caused by leakage of liquids such as sewage, and protect the ecological environment.

[0004] According to one aspect of the present invention, an embodiment of the present invention provides an inspection well, comprising: a concrete well body, comprising a wall body and a accommodating space enclosed by the wall body, the wall body being provided with a water inlet and outlet that penetrates the wall body; a plastic embedded part, intersecting with the concrete well body, plugged into the water inlet and outlet and extending into the accommodating space, the pipe diameter of the plastic embedded part matching the diameter of the water inlet and outlet, the end of the plastic embedded part away from the wall body having a connecting port for connecting to a pipeline; a pipeline connecting port, coated on the outer peripheral side of the plastic embedded part and integrally formed with the wall body of the concrete well body.

[0005] In some optional embodiments, a gate mechanism is provided on the inner surface of the side wall of the concrete well body along the top of the water outlet, and the gate mechanism includes a gate, a rotating displacement component and a fixed component; the fixed component is installed on the inner surface of the side wall of the concrete well body, the rotating displacement component is respectively connected to the fixed component and the gate, and the gate is used to block the water outlet.

[0006] In some optional embodiments, a protrusion is further included, which is arranged on the inner surface of the concrete well body facing the accommodating space and circumferentially arranged along the water outlet, and the end surface of the protrusion away from the inner surface of the concrete well body can coincide with the gate.

[0007] In some optional embodiments, the end surface of the gate facing the protruding portion is provided with a first clamping portion along its circumference, and the first clamping portion is used to install a first elastic sealing ring;

[0008] Preferably, the first elastic sealing ring is an elastic hollow sealing ring, and a first medium flow switch can be installed at any position of the first elastic sealing ring, and the first medium flow switch can be connected to a pressurizing device.

[0009] In some optional embodiments, the inspection well includes a pipeline, and the pipeline is sealed and connected to the plastic embedded part.

[0010] In some optional embodiments, a connecting piece is further included, one end of which is sealedly connected to one end of the plastic embedded part, and the other end of the connecting piece and the pipe are relatively movable and detachably connected; preferably, the connecting piece and the pipe are either plug-in or connected.

[0011] In some optional embodiments, a surface of at least one of the connector and the pipe facing the other is provided with an elastic buffer along its circumference; preferably, the elastic buffer is an elastic fold.

[0012] In some optional embodiments, a surface of at least one of the connecting piece and the pipe facing the other is provided with a second clamping portion along its circumference, and the second clamping portion is used to install a second elastic sealing ring; preferably, the second clamping portion is a concave groove, and the cross-section of the concave groove along the circumference of the concrete well body is any one of a trapezoid with the upper base truncated, a trapezoid with the upper base truncated, a letter "C" shape, and a hub cross-section shape.

[0013] In some optional embodiments, the second clamping portion and the elastic buffer zone are successively arranged on the connecting member.

[0014] In some optional embodiments, in the axial direction of the connecting piece, the ratio of the length of the elastic buffer zone to the length of the connecting piece is 1:3 to 3:5.

[0015] In some optional embodiments, the second elastic sealing ring is an elastic hollow sealing ring, and a second medium flow switch can be installed at any position of the second elastic sealing ring, and the second medium flow switch can be connected to a pressurizing device.

[0016] In some optional embodiments, the pipeline includes a plurality of sub-pipes, each of which includes a socket end and a spigot end that are arranged opposite to each other, and the socket end of one of any two adjacent sub-pipes is plugged into the spigot end of the other; a surface of at least one of any two adjacent sub-pipes facing the other is successively provided with a third clamping portion along its circumference, and the third clamping portion is used to install a third elastic sealing ring, and the third elastic sealing ring is used to seal any of the connected sub-pipes;

[0017] Preferably, the third elastic sealing ring is an elastic hollow sealing ring, and a third medium flow switch can be installed at any position of the third elastic sealing ring, and the third medium flow switch can be connected to a pressurizing device.

[0018] Compared with the prior art, the embodiment of the present application provides an inspection well, including: a concrete well body, a plastic embedded part and a pipe connection port. The diameter of the plastic embedded part matches the diameter of the water inlet and outlet. The end of the plastic embedded part away from the wall has a connection port for connecting to a pipe. The pipe connection port is coated on the outer peripheral side of the plastic embedded part and is integrally formed with the wall of the concrete well body. This can avoid side leakage between the pipe connection port and the concrete well body, prevent the occurrence of environmental pollution problems caused by the leakage of liquids such as sewage, and protect the ecological environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is a schematic structural diagram of a first angle of an inspection well provided by an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a second angle of a manhole provided by an embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of a connecting piece provided by an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the inspection well at AA provided by one embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of a second elastic sealing ring provided by an embodiment of the present invention at any magnification;

[0025] Figure 6It is a schematic diagram of an exploded structure of a magnification of a second medium flow switch provided by an embodiment of the present invention;

[0026] Figure 7 is a schematic structural diagram of a first angle of an inspection well provided by an embodiment of the present invention;

[0027] Figure 8 is a schematic structural diagram of a second angle of a manhole provided by an embodiment of the present invention;

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the inspection well BB provided by one embodiment of the present invention;

[0029] Fig.10 It is a schematic diagram of a pipeline structure provided by an embodiment of the present invention;

[0030] Fig.11 It is a schematic diagram of the cross-sectional structure of a first elastic sealing ring provided by an embodiment of the present invention at any magnification;

[0031] Fig.12 It is a schematic diagram of an exploded structure of a magnification of a first medium flow switch provided by an embodiment of the present invention;

[0032] Fig.13 It is a schematic diagram of the cross-sectional structure of a third elastic sealing ring provided by an embodiment of the present invention at any magnification;

[0033] Fig.14 It is a schematic diagram of an exploded structure of a magnification of a third medium flow switch provided by an embodiment of the present invention;

[0034] Fig.15 It is a schematic diagram of the first angle structure of the magnification of the plastic embedded part provided by one embodiment of the present invention;

[0035] Fig.16 It is a second angle structural schematic diagram of the magnification of the plastic embedded part provided by an embodiment of the present invention.

[0036] In the attached drawings: 1-concrete well body; 11-gate mechanism; 111-gate; 112-rotation displacement component; 113-fixed component; 2-plastic embedded part; 21-protrusion; A1-water outlet; A2-water inlet; 3-pipeline; 5-connector; 51-elastic buffer; 52-second clamping part; 7-second elastic sealing ring; 71-second medium flow switch; 711-second medium gate body; 712-second medium door core; 713-second Medium door cap; 8-pipeline connection port; 9-sub-pipeline; 91-socket end; 92-socket end; 10-third clamping part; b-first elastic sealing ring; b1-first medium circulation switch; b11-first medium door mouth body; b12-first medium door core; b13-first medium door cap; c-third hollow elastic sealing ring; c1-third medium circulation switch; c11-third medium door mouth body; c12-third medium door core; c13-third medium door cap. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0039] Figure 1 is a schematic structural diagram of a first angle of an inspection well provided by an embodiment of the present invention; Figure 2 is a schematic structural diagram of a second angle of a manhole provided by an embodiment of the present invention; Figure 3 is a schematic structural diagram of a connecting piece provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the inspection well at AA provided by one embodiment of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of a second elastic sealing ring provided by an embodiment of the present invention at any magnification; Figure 6 It is a schematic diagram of an exploded structure of a magnification of a second medium flow switch provided by an embodiment of the present invention; Figure 7 is a schematic structural diagram of a first angle of an inspection well provided by an embodiment of the present invention; Figure 8 is a schematic structural diagram of a second angle of a manhole provided by an embodiment of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the inspection well BB provided by one embodiment of the present invention; Fig.10It is a schematic diagram of a pipeline structure provided by an embodiment of the present invention; Fig.11 It is a schematic diagram of the cross-sectional structure of a first elastic sealing ring provided by an embodiment of the present invention at any magnification; Fig.12 It is a schematic diagram of an exploded structure of a magnification of a first medium flow switch provided by an embodiment of the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of a third elastic sealing ring provided by an embodiment of the present invention at any magnification; Fig.14 It is a schematic diagram of an exploded structure of a magnification of a third medium flow switch provided by an embodiment of the present invention; Fig.15 It is a schematic diagram of the first angle structure of the magnification of the plastic embedded part provided by one embodiment of the present invention; Fig.16 It is a second angle structural schematic diagram of the magnification of the plastic embedded part provided by an embodiment of the present invention.

[0040] The present application provides an inspection well, comprising: a concrete well body 1, comprising a wall body and a accommodating space formed by the wall body, the wall body being provided with a water inlet and outlet penetrating the wall body; a plastic embedded part 2, intersecting with the concrete well body 1 and plugged into the water inlet and outlet and extending into the accommodating space, the pipe diameter of the plastic embedded part 2 matching the diameter of the water inlet and outlet, and the end of the plastic embedded part 2 away from the wall body having a connecting port for connecting to a pipe 3; a pipe connecting port 8, coated on the outer peripheral side of the plastic embedded part 2 and integrally formed with the wall body of the concrete well body 1, which can avoid side leakage between the pipe connecting port 8 and the concrete well body 1, prevent the occurrence of environmental pollution problems due to leakage of liquids such as sewage, and protect the ecological environment.

[0041] Specifically, the concrete well body 1 is a tubular structure, and a groove is provided at the top of the concrete well body 1 along its own circumference, and the groove is used to install the cover plate buckled on the concrete well body 1. Optionally, the shape of the groove can be "V-shaped" or "U-shaped", and the surface of the cover plate facing the concrete well body 1 is equipped with a "V-shaped" or "U-shaped" protrusion along its own circumference, and the protrusion of the cover plate cooperates with the groove at the top of the concrete well body 1, so that the cover plate buckles on the top of the concrete well body 1. The concrete well body 1 has at least one water inlet and one water outlet A1 along its own circumferential direction, and the caliber positions of the water inlet A2 and the water outlet A1 are both installed with plastic embedded parts 2 matching their own calibers, and the plastic embedded parts 2 extend radially to the concrete well body 1, one end extends to a certain preset distance outside the inspection well, and the other end extends to a certain preset distance inside the inspection well. It can be understood that the plastic embedded parts 2 can also only extend to a certain preset distance outside the inspection well, or the plastic embedded parts 2 can also only extend to a certain preset distance inside the inspection well. The pipe connection port 8 is covered on the outer peripheral side of the plastic embedded part 2 and is integrally formed with the wall of the concrete well body 1. That is to say, the pipe connection port 8 and the concrete well body 1 are cast together in the same mold, which can prevent the pipe connection port 8 and the concrete well body 1 from having a gap due to not being cast at the same time, thereby improving the sealing of the pipe connection port 8 and the concrete well body 1.

[0042] In some optional embodiments, a gate mechanism 11 is provided on the inner surface of the side wall of the concrete well body 1 along the top of the water outlet A1, and the gate mechanism 11 includes a gate 111, a rotation displacement component 112, and a fixed component 113; the fixed component 113 is installed on the inner surface of the side wall of the concrete well body 1, and the rotation displacement component 112 is respectively connected to the fixed component 113 and the gate 111, and the gate 111 is used to block the water outlet A1. A gate structure is installed at the position of the water outlet A1 on the inner surface of the concrete well body 1, which can control the gate mechanism 11 to block the caliber of the water outlet A1, thereby controlling the size of the water flow. Of course, the water outlet A1 can be completely blocked. When the pipe 3 at the lower end of the water outlet A1 is damaged, blocking the water outlet A1 can ensure the maintenance work of the staff.

[0043] Specifically, the fixing component 113 is used to install the rotation displacement component 112 on the side wall of the concrete well body 1. Optionally, the fixing component 113 is a fixing rod, which is detachably installed on the side wall of the concrete body by bolts. The rotation displacement component 112 is used to drive the gate 111 to rotate up and down, left and right, to ensure that the gate 111 can control the angle and scale of blocking the water outlet A1, and then control the size of the water flow. Optionally, the rotation displacement component 112 is a screw and a motor. The position where the gate 111 coincides with the plastic embedded part 2 is provided with a first clamping part along its own circumference. The first clamping part is used to install the first elastic sealing ring b. Optionally, the first elastic sealing ring b is an elastic hollow sealing ring. The material of the elastic hollow sealing ring can meet the pressure applied in its own working environment. The gate 111 is installed with the first elastic sealing ring b to better match the water outlet A1 and improve the compactness of the water outlet 1. When the rotating displacement component 112 drives the gate 111 to move up and down, the pressurizing device applies negative pressure to the first elastic sealing ring b, so that the first elastic sealing ring b is in a flat state. When the gate 111 reaches the specified position of the water outlet A1, the pressurizing device applies positive pressure to the first elastic sealing ring b, so that the first elastic sealing ring b stretches from its original flat state to achieve the effect of volume expansion, thereby sealing the gap between the gate 111 and the water outlet A1 of the concrete prefabricated well body 1, so that the pipeline 3 is completely cut off, which is convenient for the maintenance of the pipeline 3.

[0044] Furthermore, if Fig.11 As shown, the first elastic sealing ring b is an elastic hollow sealing ring, the material of which can meet the pressure applied in its own working environment, and the first medium flow switch b1 can be installed at any position of the first elastic sealing ring b, and the first medium flow switch b1 can be connected to the pressurizing device. The medium filled into the first elastic sealing ring b by the pressurizing device can be gas, and the first medium flow switch b1 can be a valve. The medium filled into the first elastic sealing ring b by the pressurizing device can also be liquid or gas.

[0045] Furthermore, the first clamping portion is arranged on the end face of the gate 111 facing the water outlet A1, and the first clamping portion is a concave groove. The cross-section of the concave groove along the circumference of the concrete well body 1 is any one of a trapezoid with the upper base truncated, a trapezoid with the upper base truncated, the letter "C" shape and a hub cross-section shape. The first clamping portion is used to install the first elastic sealing ring b. When the first elastic sealing ring b is filled with a certain medium, a part of it will be exposed on the outside of the first clamping portion, which just coincides with the end face of the protrusion 21 away from the inner surface of the concrete well body 1, thereby improving the sealing performance of the gate 111 and the water outlet A1.

[0046] Specifically, the gate 111 has a mounting hole at the first clamping portion that matches the first medium flow switch b1. The mounting hole passes through the gate 111, and the first medium flow switch b1 is inserted into the mounting hole, so that the first elastic sealing ring b is better fixed to the first clamping portion to prevent the first elastic sealing ring b from falling off. Fig.12 As shown, the first medium circulation switch b1 includes a first medium gate body b11, a first medium gate core b12 and a first medium gate cap b13. The first medium gate core b12 is a medium circulation switch, which can pass the medium inward and flow outward. It can be understood that the selection principle of the first medium circulation switch b1 can achieve the on-off of the medium circulation in any of the above implementation cases.

[0047] Furthermore, the inspection well further comprises a protrusion 21, which is arranged on the inner surface of the concrete well body 1 facing the accommodating space and circumferentially arranged along the water outlet A1, and the end surface of the protrusion 21 away from the inner surface of the concrete well body 1 can be matched with the gate 111. The protrusion 21, the plastic embedded part 2 and the concrete well body 1 are cast together, which can improve the firmness of the protrusion 21, prevent the protrusion 21 from cracking, and enhance the reliability of the sealing of the connection position between the concrete well body 1 and the plastic embedded part 2.

[0048] In some optional embodiments, the inspection well includes a pipe 3, which is a concrete pipe. The pipe 3 and the plastic embedded part 2 are sealed and connected, which can also effectively prevent groundwater from mixing into the pipe 3, so as not to increase the sewage treatment volume and sewage treatment cost.

[0049] In some optional embodiments, the inspection well further includes a connector 5, one end of the connector 5 is sealed and connected to one end of the plastic embedded part 2. Optionally, the sealing connection between the connector 5 and the plastic embedded part 2 is achieved by welding, threaded connection or connection through the connector 5, all of which have good sealing effects. The other end of the connector 5 and the pipe 3 are relatively movable and detachably connected. Preferably, the connector 5 and the pipe 3 are connected by plugging or connecting, and the concrete well body 1 and the pipe 3 are connected by the connector 5. This allows a certain amount of movable space between the concrete well body 1 and the pipe 3, thereby improving the reliability of the sealing at the connection between the concrete well body 1 and the pipe 3, reducing the risk of breakage at the connection between the concrete well body 1 and the pipe 3, and improving the engineering quality of the inspection well.

[0050] Furthermore, the surface of the connector 5 is provided with an elastic buffer 51 and a second clamping portion 52 in succession along its circumference. Preferably, the elastic buffer 51 is an elastic fold in the axial direction of the connector 5. The elastic buffer 51 can increase the shear resistance between the concrete well body 1 and the pipe 3. When the pipe 3 and the concrete well body 1 move relative to each other, the elastic buffer 51 can provide a certain dynamic displacement compensation to the pipe 3 and the concrete well body 1 through its own elastic performance; at the same time, the connection between the concrete well body 1 and the pipe 3 of different materials is realized, preventing the pipe 3 and the concrete well body 1 from being unable to be effectively sealed and connected due to different materials.

[0051] Optionally, the connector 5 is cylindrical and has two opposite ends along its own axial direction. One end of the connector 5 is sealed and connected to the plastic embedded part 2 in the concrete well body 1, and the other end of the connector 5 is inserted into the pipe 3. The elastic buffer 51 and the second clamping part 52 are only arranged on the connector 5. The second clamping part 52 is arranged at one end of the connector 5 close to the pipe 3. The second clamping part 52 is used to install the second elastic sealing ring 7. The elastic buffer 51 is arranged in the middle of the connector 5, which improves the annular stiffness of the connector 5 and the shear resistance between the connector 5 and the pipe 3. The concrete prefabricated well body 1 and the pipe 3 are connected by the connector 5 to prevent the concrete prefabricated well body 1 and the pipe 3 from being torn due to relative displacement. The connector 5 is installed with the second elastic sealing ring 7 through the second clamping part 52, which can compensate for the gap between the pipe 3 and the connector 5, and also increase the friction performance between the pipe 3 and the connector 5, so as to prevent the impact force of sewage flowing into the pipe 3 from being too large and thus separating the pipe 3 and the connector 5.

[0052] Further, the second clamping portion 52 is a concave groove, and the cross section of the concave groove along the circumference of the concrete well body 1 is any one of a trapezoid with the upper bottom edge cut off, a trapezoid with the upper bottom edge cut off, a letter "C" shape, and a hub cross section shape. The second clamping portion 52 is used to install the second elastic sealing ring 7. The hollow part of the second elastic sealing ring 7 is in a vacuum state during installation and is flat, which ensures the convenience of the installation process and effectively avoids damage to the sealing ring. After the installation is completed, when the second elastic sealing ring 7 is filled with a medium of a certain pressure, the second elastic sealing ring 7 stretches from the original flat shape to achieve the effect of volume expansion, and a part of it will be exposed outside the second clamping portion 52, just in close cooperation with the inner surface or outer surface of the pipe 3, and also increase the friction between the pipe 3 and the connector 5. The medium can be gas, liquid or colloidal fluid, and these gases or liquids can also be substances that can solidify after a certain period of time after being filled, but the substance must meet the requirement that the volume cannot shrink after solidification to maintain the posture of the sealing ring after expansion.

[0053] In some optional embodiments, one end of the connector 5 is sealed to one end of the plastic embedded part 2, and the sealing connection can be threaded or welded, which has a simple process, good sealing performance and a long service life. The other end of the connector 5 is plugged into the pipe 3, or the pipe 3 is plugged into the connector 5, and the surface of at least one of the connector 5 and the pipe 3 facing the other is successively provided with an elastic buffer 51 and a second clamping portion 52 along its own circumferential direction.

[0054] Furthermore, if Figure 2 and Figure 3 As shown, the elastic buffer 51 and the second clamping portion 52 are both arranged on the connector 5. The elastic buffer 51 of the connector 5 prevents cracking between the pipeline 3 and the inspection well due to uneven settlement, and the elastic buffer 51 also enhances the ring stiffness of the connector; the second elastic sealing ring 7 can always make up for the gap between the pipeline 3 and the connector 5, and can also make up for the error caused by the rough workmanship of the pipeline 3, and prevent leakage between the pipeline 3 and the connector 5. In short, the connector 5 can also effectively achieve the transition between the pipeline 3 and the concrete well body 1. In some optional embodiments, the second elastic sealing ring 7 is an elastic hollow sealing ring, the material of which can meet the pressure applied in its own working environment, and the second medium flow switch 71 can be installed at any position of the second elastic sealing ring 7, and the second medium flow switch 71 can be connected to the pressurizing device.

[0055] Specifically, Figure 5As shown, the second elastic sealing ring 7 is an elastic rubber ring. The material of the elastic hollow sealing ring can withstand the pressure applied in its own working environment. The second medium flow switch 71 can be installed at any position of the second elastic sealing ring 7, and the second medium flow switch 71 can be connected to the pressurizing equipment. The medium filled into the second elastic sealing ring 7 by the pressurizing device can be gas, liquid, or colloidal fluid, and the second medium flow switch 71 can be a valve or a valve in other forms. When the pipeline 3, the connecting piece 5 and the second elastic sealing ring 7 are assembled, the hollow part of the second elastic sealing ring 7 is filled with a medium with a certain pressure, and the hollow sealing ring 7 is stretched from its original flat shape. The elastic hollow sealing ring uses the pressure resistance of the material to pressurize itself to the required pressure, thereby achieving the effect of volume expansion, and then blocking the gap between the pipeline 3 and the connecting piece 5. Since the medium has fluidity in the second hollow sealing ring 7, under a certain pressure, the second hollow sealing ring 7 expands a little more where the gap is large, and expands a little less where the gap is small, so it can fully block the uneven gap between the pipeline 3 and the connecting piece 5 formed due to dimensional differences. When the pipe 3 and the connector 5 are assembled, the hollow part of the second elastic sealing ring 7 is in a vacuum state, and the second elastic sealing ring 7 is in a flat state, which is convenient for the assembly of the pipe 3 and the connector 5. After the pipe 3 and the connector 5 are assembled, the pressurizing device applies positive pressure to the second elastic sealing ring 7, so that the second elastic sealing ring 7 stretches from its original flat state to achieve a volume expansion effect. The gap between the second elastic sealing ring 7, the pipe 3 and the connector 5 has a uniform adhesion force and good followability, which can make up for the gap between the pipe 3 and the connector 5, effectively prevent leakage, and further make the sealing of the pipe 3 meet the design requirements.

[0056] Specifically, Figure 6 As shown, the position where the second clamping part 52 is set in the pipeline 3 and / or the connecting member 5 has a mounting hole, and the mounting hole can accommodate the second medium circulation switch 71. The second medium circulation switch 71 is inserted into the mounting hole, and the second medium circulation switch 71 is inserted in the mounting hole, so that the second elastic sealing ring 7 is better fixed on the second clamping part 52 to prevent the second elastic sealing ring 7 from falling. The second medium circulation switch 71 includes a second medium gate body 711, a second medium door core 712 and a second medium door cap 713. The second medium door core 712 is a medium circulation switch, which can pass the medium inwardly and flow outwardly. It can be understood that the selection principle of the second medium circulation switch 71 can meet the on-off of the medium circulation in any of the above implementation cases.

[0057] In some optional embodiments, the pipeline 3 includes a plurality of sub-pipes 9, each sub-pipe 9 includes a socket end 91 and a plug end 92 arranged opposite to each other, and the socket end 91 of one of any two adjacent sub-pipes 9 is plugged into the plug end 92 of the other; a third clamping portion 10 is successively provided along its circumference on the surface of at least one of the two adjacent sub-pipes 9 facing the other, and the third clamping portion 10 is used to install a third elastic sealing ring c, and the third elastic sealing ring c is used to seal any connected sub-pipe 9; preferably, the third elastic sealing ring c is an elastic hollow sealing ring, and the material of the elastic hollow sealing ring is capable of meeting the pressure applied in its own working environment, and a third medium flow switch c1 can be installed at any position of the third elastic sealing ring c, and the third medium flow switch c1 can be connected to a pressurizing device. Fig.10 The third clamping portion 10 shown in the figure is a clamping portion arranged along the circumference of the outer surface of the socket end 92. In actual implementation, the third clamping portion 10 can also be arranged along the inner surface of the socket end 91.

[0058] Specifically, Fig. 9 , Fig.10 , Fig.13 and Fig.14As shown, the pipeline 3 includes a plurality of connected sub-pipes 9, the diameter of the socket end 92 of each sub-pipe 9 is smaller than the diameter of the socket end 91, and the socket end 92 of any two adjacent sub-pipes 9 is connected to the socket end 91 of the other. Optionally, a pipeline 3 may also include two opposite socket ends 92, or two oppositely arranged socket ends 91. The cross section of the third clamping portion 10 is any one of a trapezoid with the upper bottom edge truncated, a trapezoid with the upper bottom edge truncated, a letter "C" shape, and a hub cross-section shape. The third clamping portion 10 is used to install a third elastic sealing ring c. Optionally, the third elastic sealing ring c is an elastic hollow sealing ring, and the material of the elastic hollow sealing ring is capable of meeting the pressure applied in its own working environment. The third medium flow switch c1 can be installed at any position of the third elastic sealing ring c, and the third medium flow switch c1 can be connected to a pressurizing device. The third medium flow switch c1 includes a third medium gate body c11, a third medium gate core c12 and a third medium gate cap c13. The third medium gate core c12 is a medium flow switch that can pass the medium inward. It can be understood that the selection principle of the third medium flow switch c1 can meet the on-off of the medium flow in any of the above implementation cases. Before the installation of the pipeline 3, the hollow part of the third elastic sealing ring c is in a vacuum tube state and is flat. After the installation is completed, the third elastic sealing ring c is filled with a medium with a certain pressure through the third medium flow switch c1 to the hollow part of the third elastic sealing ring c, so that the third elastic sealing ring c is stretched from the flat state during installation. The third sealing ring c can pressurize itself to the required pressure by using the pressure resistance of the material to achieve the effect of volume expansion. The medium of the third elastic sealing ring c can be gas, liquid or colloidal fluid. After the medium is filled into the elastic hollow sealing ring, it can also be a material that can solidify after a certain period of time, but it must meet the requirement that the volume cannot shrink. In this way, the posture of the third elastic sealing ring c after expansion can be maintained, thereby ensuring its sealing performance and preventing the third elastic sealing ring c from expanding. The change in shape further affects the sealing performance of the third elastic sealing ring c, because the medium has fluidity in the third elastic sealing ring c when it is just injected. Under a certain pressure, the third elastic sealing ring c expands a little more where the gap is large, and expands a little less where the gap is small, so it can fully block the uneven gap formed between the pipeline 3 and the connecting piece 5. The third elastic sealing ring c has uniform adhesion and good tracking performance for any two connected sub-pipelines 9, so it can always make up for the gap between any two connected sub-pipelines 9, and also make up for the error caused by the rough workmanship of the sub-pipeline 9, prevent leakage between the sub-pipeline 9 and the connecting piece 5, and further make the sealing of the sub-pipeline 9 meet the design requirements, effectively prevent leakage, and prevent environmental pollution.

[0059] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0060] It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A manhole inspection device, characterized in that: include: A concrete well body (1) comprises a wall body and a containing space enclosed by the wall body, wherein the wall body is provided with a water inlet and outlet penetrating the wall body; The plastic embedded part (2) is an annular structure, intersecting with the concrete well body (1) and plugged into the water inlet and outlet and extending into the accommodation space, the pipe diameter of the plastic embedded part (2) matches the diameter of the water inlet and outlet, and the end of the plastic embedded part (2) away from the wall body has a connection port for connecting to a pipe (3); A pipeline connection port (8) is coated on the outer peripheral side of the plastic embedded part (2) and is integrally formed with the wall of the concrete well body (1); A gate mechanism (11) is provided on the inner surface of the side wall of the concrete well body (1) above the water outlet (A1), the gate mechanism (11) comprising a gate (111), and the gate (111) is used to block the water outlet (A1); It also includes a protrusion (21), which is arranged on the inner surface of the concrete well body (1) facing the accommodating space and is arranged along the circumference of the water outlet (A1). The protrusion (21), the plastic embedded part (2) and the concrete well body (1) are cast together, and the end surface of the protrusion (21) away from the inner surface of the concrete well body (1) can be matched with the gate (111).

2. The inspection well according to claim 1, characterized in that: The gate mechanism (11) further comprises a rotation displacement component (112) and a fixing component (113); The fixing component (113) is installed on the inner surface of the side wall of the concrete well body (1), and the rotation displacement component (112) is respectively connected to the fixing component (113) and the gate (111).

3. The inspection well according to claim 1, characterized in that: The end surface of the gate (111) facing the protruding portion (21) is provided with a first clamping portion along its circumference, and the first clamping portion is used to install a first elastic sealing ring (b).

4. The inspection well according to claim 3, characterized in that: The first elastic sealing ring (b) is an elastic hollow sealing ring. A first medium flow switch (b1) can be installed at any position of the first elastic sealing ring (b). The first medium flow switch (b1) can be connected to a pressurizing device.

5. The inspection well according to claim 3, characterized in that: The inspection well comprises a pipeline (3), and the pipeline (3) and the plastic embedded part (2) are sealedly connected.

6. The inspection well according to claim 5, characterized in that: It also comprises a connecting piece (5), one end of which is sealedly connected to one end of the plastic embedded part (2), and the other end of the connecting piece (5) is relatively movable and detachably connected to the pipe (3).

7. The inspection well according to claim 6, characterized in that: The connector (5) and the pipe (3) are either plug-connected or connected.

8. The inspection well according to claim 6, characterized in that: A surface of at least one of the connecting piece (5) and the pipe (3) facing the other is provided with an elastic buffer zone (51) along its circumference.

9. The inspection well according to claim 8, characterized in that: The elastic buffer zone (51) is an elastic fold.

10. The inspection well according to claim 8, characterized in that: A second clamping portion (52) is provided along the circumference of at least one of the connecting piece (5) and the pipe (3) on a surface facing the other, and the second clamping portion (52) is used to install a second elastic sealing ring (7).

11. The inspection well according to claim 10, characterized in that: The second clamping portion (52) is a concave groove, and the cross-section of the concave groove along the circumference of the concrete well body (1) is any one of a trapezoid with the upper base truncated, a letter "C" shape, and a hub cross-section shape.

12. The inspection well according to claim 10, characterized in that: The second clamping portion (52) and the elastic buffer zone (51) are successively arranged on the connecting member.

13. The inspection well according to claim 12, characterized in that: In the axial direction of the connecting piece (5), the ratio of the length of the elastic buffer zone (51) to the length of the connecting piece (5) is 1:3 to 3:

5.

14. The inspection well according to claim 12, characterized in that: The second elastic sealing ring (7) is an elastic hollow sealing ring, and a second medium flow switch (71) can be installed at any position of the second elastic sealing ring (7), and the second medium flow switch (71) can be connected to a pressurizing device.

15. The inspection well according to claim 6, characterized in that: The pipeline (3) comprises a plurality of sub-pipes (9), each of the sub-pipes (9) comprising a socket end (91) and a spigot end (92) arranged opposite to each other, the socket end (91) of any two adjacent sub-pipes (9) being plugged into the spigot end (92) of the other; a third clamping portion (10) is successively arranged along its circumference on a surface of at least one of any two adjacent sub-pipes (9) facing the other, the third clamping portion (10) being used to install a third elastic sealing ring (c), the third elastic sealing ring (c) being used to seal any of the connected sub-pipes (9).

16. The inspection well according to claim 15, characterized in that: The third elastic sealing ring (c) is an elastic hollow sealing ring. A third medium flow switch (c1) can be installed at any position of the third elastic sealing ring (c), and the third medium flow switch (c1) can be connected to a pressurizing device.

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