Concrete prefabricated sewage inspection well convenient to install and connect

Abstract

The invention belongs to the technical field of sewage inspection wells, and discloses a concrete prefabricated sewage inspection well convenient to install and connect, the concrete prefabricated sewage inspection well comprises a base, a shaft and a well lid, the bottom of the shaft is adaptively sleeved in a top stepped groove of the base, and the bottom of the well lid is adaptively sleeved in a top stepped groove of the shaft. And a positioning column is fixedly arranged in the base. After the device is transported to an embedded construction site, the base, the shaft and the well lid are assembled in sequence and are matched with external pipelines sleeved with the two sides, the downward pressing compression force of the quick mounting assembly is utilized, and the downward pressing rotary clamping is matched, so that the internal hydraulic pressure of the compression type communication assembly is increased; the hydraulic pressure acts on the clamping assembly, rapid clamping and fixing of the sleeved pipeline are synchronously completed, the installation ring and the compression type communication assembly are assembled in advance when leaving a factory, rapid fixing and installation can be achieved on a construction site, operation is easy, and the efficiency of on-site installation and connection is improved.

Description

Technical Field

[0001] This invention belongs to the field of sewage inspection well technology, specifically a precast concrete sewage inspection well that is easy to install and connect. Background Technology

[0002] Precast concrete sewage inspection wells are sewage pipe network auxiliary structures that are prefabricated in a factory and assembled on site. They are mainly used for the inspection, cleaning, maintenance and connection of sewage pipes. They are made of high-strength concrete and have the characteristics of good durability, quick construction and strong sealing. They are widely used in municipal drainage, sewage treatment, industrial drainage and other projects.

[0003] In existing technologies, precast concrete sewage inspection wells typically require connection to pipelines in the pipe network during on-site assembly, followed by fixing. Although the main body of the inspection well can be prefabricated in the factory, on-site installation still requires the use of other components for connecting and fixing the pipelines. The actual installation process remains inconvenient. Fixing the well to the pipelines requires flanges and bolts, resulting in slow assembly. Furthermore, the current method of assembling the sewage inspection well itself using stepped end grooves still poses a risk of displacement and tilting when subjected to significant lateral thrust, leading to unsatisfactory overall performance. Summary of the Invention

[0004] The purpose of this invention is to provide a precast concrete sewage inspection well that is easy to install and connect, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precast concrete sewage inspection well that is easy to install and connect, comprising a base, a well cylinder, and a well cover. The bottom of the well cylinder is adapted to fit into the top stepped groove of the base, and the bottom of the well cover is adapted to fit into the top stepped groove of the well cylinder. A positioning post is fixedly provided inside the base. An installation hole is provided on the outer side of the well cylinder. An installation ring is provided on the inner wall of the well cylinder. Installation snap-fit ​​components are provided on both sides of the installation ring. The installation ring is fixed to the inner wall of the well cylinder by the installation snap-fit ​​components and is aligned and connected with the installation hole. Clamping components are distributed around the inner wall of the installation ring. A connecting arc groove is provided inside the installation ring. The clamping components are connected to each other through the connecting arc groove. A compression connecting component is fixedly provided at one end of the installation ring. The compression connecting component is connected to the connecting arc groove. A quick-installation component is movably sleeved inside the well cover. When the quick-installation component is pressed down, it is sleeved into the compression connecting component. When the quick-installation component is pressed down and rotated, it snaps into the positioning post.

[0006] Preferably, the outer side of the mounting ring has a side opening, the inner end face of the mounting ring has a sliding groove, the sliding groove and the side opening are connected, the inner wall of the well shaft has an adapter hole, the inner wall of the adapter hole has a positioning groove, and the adapter hole is connected to the mounting hole.

[0007] Preferably, the mounting and snapping assembly includes a slider, a spring, and a toggle block. The slider is slidably fitted into the side opening. One end of the spring is fixedly connected to the slider, and the other end is fixedly fixed in the side opening. The toggle block is slidably fitted into the groove and fixedly connected to the slider. The slider is adapted to the positioning groove.

[0008] Preferably, the clamping assembly includes a push post, an arc-shaped clamping plate, a second spring, a mounting sleeve hole, and a reserved arc groove. The reserved arc groove is formed on the inner wall of the mounting ring, the mounting sleeve hole is formed inside the mounting ring and communicates with the reserved arc groove, the push post is movably sleeved in the mounting sleeve hole, one end of the second spring is fixedly connected to the mounting sleeve hole, and the other end is fixedly connected to the push post, the arc-shaped clamping plate is fixedly connected to one end of the push post and movably sleeved in the reserved arc groove, and the communicating arc groove and the mounting sleeve hole are alternately distributed and communicate with each other.

[0009] Preferably, the compression-type connecting assembly includes a connecting sleeve, a fixed cylinder, a connecting frame, a curved tube, and an elastic storage bladder. The connecting frame is fixedly connected to the side of the connecting sleeve and communicates with the connecting sleeve. The other end of the connecting frame is fixed to the end face of the mounting ring and communicates with the connecting arc groove. The fixed cylinder is located above the connecting sleeve. One end of the curved tube is fixedly connected to the end face of the connecting sleeve, and the other end is fixedly connected to the fixed cylinder. The elastic storage bladder is sleeved in the fixed cylinder, and the bottom of the elastic storage bladder communicates with the curved tube.

[0010] Preferably, the quick-installation assembly includes a movable column, a retaining cap, a fixing ring, and a snap-fit ​​curved plate. The movable column is movably fitted into the manhole cover, the retaining cap is fixedly connected to the top of the movable column, the outer side of the retaining cap includes a protrusion, the fixing ring is fixedly fitted onto the outer surface of the movable column, and the snap-fit ​​curved plate is fixed to the outer side of the fixing ring.

[0011] Preferably, the top of the manhole cover is provided with an adapter slot mechanism, which includes a top hole, a middle groove, and an adapter cavity. The top hole is located on the top of the manhole cover, the middle groove is located on the top of the manhole cover and communicates with the top hole, and the adapter cavity is located inside the manhole cover. The adapter cavity is located below the top hole and communicates with the top hole. The adapter cavity communicates with the middle groove. The inner diameter of the adapter cavity is larger than the inner diameter of the top hole. After the cover is moved down and rotated, it is engaged in the adapter cavity.

[0012] Preferably, the positioning post includes a column body and a positioning arc groove. The column body is fixed inside the base. The positioning post corresponds one-to-one with the quick-installation assembly. The positioning arc groove is opened on the outer surface of the column body and is located on the moving path of the snap-fit ​​curved plate.

[0013] The beneficial effects of this invention are as follows: 1. This invention utilizes pre-drilled adapter holes and positioning slots on the inner wall of the well shaft. With the independently assembled mounting ring and compression-type connecting assembly at the factory, pre-installation can be completed before arrival at the construction site. Combined with the pre-installed quick-installation assembly on the well cover, after transportation to the pre-embedded construction site, the base, well shaft, and well cover are assembled sequentially. Then, with the external pipelines inserted on both sides, the downward pressure of the quick-installation assembly, along with the rotating clamping action after pressure, increases the internal hydraulic pressure of the compression-type connecting assembly. Simultaneously, this hydraulic pressure acts on the clamping assembly, quickly clamping and fixing the inserted pipeline. Furthermore, the pre-assembled mounting ring and compression-type connecting assembly at the factory allow for quick and easy installation on-site, simplifying operation and improving the efficiency of on-site installation and connection.

[0014] 2. This invention utilizes the quick-installation component and positioning column again. After the clamping action of the clamping component is completed, the quick-installation component is rotated synchronously to complete the engagement with the positioning column. While completing the above-mentioned clamping and fixing, the top of the quick-installation component is engaged and fixed with the matching slot mechanism. At the same time, the base and manhole cover are relatively clamped, and the middle manhole is clamped and fixed. While fixing the casing pipeline, the various components of the inspection well are fixed, avoiding displacement and tilting, and improving the stability and convenience of on-site installation of the inspection well. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This is a schematic diagram of the base of the present invention; Figure 4 This is a cross-sectional schematic diagram of the manhole cover of the present invention; Figure 5 This is a schematic diagram showing the connection between the compression-type communication component and the mounting ring of the present invention; Figure 6 This is a cross-sectional schematic diagram of the compressed communication component of the present invention; Figure 7 This is a cross-sectional schematic diagram of the mounting ring and mounting clip assembly of the present invention; Figure 8 This is a cross-sectional schematic diagram of the mounting ring and clamping assembly of the present invention; Figure 9 This is a cross-sectional schematic diagram of the well casing of the present invention.

[0016] In the diagram: 1. Base; 2. Well shaft; 3. Well cover; 4. Mounting hole; 5. Mounting ring; 6. Positioning groove; 7. Positioning column; 71. Column; 72. Positioning arc groove; 8. Quick installation assembly; 81. Movable column; 82. Clip cover; 83. Fixing ring; 84. Clip-on curved plate; 9. Adaptive clip mechanism; 91. Top hole; 92. Middle groove; 93. Adaptive clip cavity; 10. Mounting clip assembly; 101. Slider; 102 103. Spring 1; 11. Actuating block; 12. Compression-type connecting component; 13. Connecting sleeve; 14. Fixing cylinder; 15. Connecting frame; 16. Curved tube; 17. Elastic storage bladder; 18. Clamping component; 19. Pushing column; 100. Arc-shaped clamping plate; 111. Spring 2; 122. Mounting sleeve hole; 13. Reserved arc groove; 14. Connecting arc groove; 15. Side opening; 16. Slide groove; 17. Adapter hole. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 9 As shown, this embodiment of the invention provides a precast concrete sewage inspection well that is easy to install and connect, including a base 1, a well cylinder 2, and a well cover 3. The bottom of the well cylinder 2 is adapted to fit into the top stepped groove of the base 1, and the bottom of the well cover 3 is adapted to fit into the top stepped groove of the well cylinder 2. A positioning post 7 is fixedly provided inside the base 1, and an installation hole 4 is provided on the outer side of the well cylinder 2. An installation ring 5 is provided on the inner wall of the well cylinder 2, and installation snap-fit ​​components 10 are provided on both sides of the installation ring 5. The installation ring 5 is fixed to the inner wall of the well cylinder 2 by the installation snap-fit ​​components 10. The mounting ring 5 is aligned with the mounting hole 4 and is connected to it. The inner wall of the mounting ring 5 is surrounded by clamping components 12. The inside of the mounting ring 5 is provided with a connecting arc groove 13. The clamping components 12 are connected to each other through the connecting arc groove 13. One end of the mounting ring 5 is fixedly provided with a compression connecting component 11. The compression connecting component 11 is connected to the connecting arc groove 13. The inside of the manhole cover 3 is movably fitted with a quick installation component 8. When the quick installation component 8 is pressed down, it is fitted into the compression connecting component 11. When the quick installation component 8 is pressed down and rotated, it is engaged with the positioning post 7.

[0019] Example 1: During installation, before transporting to the installation site, the installation ring 5 is pre-operated by pushing and pulling the actuating block 103, causing the slider 101 to be hidden in the side opening 14 on the side of the installation ring 5. The installation ring 5 is then fitted into the adapter hole 16 along the inner wall of the well cylinder 2. The actuating block 103 is released, and the spring 102 elastically returns to its original position, pushing the slider 101 to slide along the side opening 14 into the positioning groove 6, completing the pre-installation before transportation. Before shipping, the quick-installation assembly 8 is movably installed on the well cover 3. Subsequently, all components are transported to the construction site. At the site, the base 1 is placed in the pre-buried pit, and then the well cylinder 2 is placed nested on top of the base 1. The well cylinder 2 is deflected so that the installation ring 5 corresponds to the positioning post 7 in the base 1, with the installation ring 5 centered between two adjacent sets of positioning posts 7. Then, the well cover 3 is covered, keeping the quick-installation assembly 8 directly above the compression-type connecting assembly 11. The pipeline to be assembled is then placed along the side of the well cylinder 2. The mounting hole 4 is inserted into the mounting ring 5. After the initial connection is completed, the quick installation component 8 is pressed down, so that the movable column 81 is inserted into the connecting sleeve 111 of the compression connecting component 11, and the compressed elastic storage bladder 115 is compressed. The hydraulic compression stored inside is introduced into the connecting arc groove 13 through the curved pipe 114 and the connecting frame 113, and pressed into the mounting sleeve hole 124, so that the pushing column 121 moves and the arc clamp 122 is clamped on the outside of the inserted pipeline, completing the installation and fixation of the pipeline after the connection. At the same time, the quick installation component 8 is rotated. At this time, the snap-fit ​​curved plate 84 in the quick installation component 8 is snapped into the positioning arc groove 72 of the positioning column 7 under rotation, and the snap-fit ​​cover 82 on the top of the movable column 81 and the outer protrusion block rotate along the inside of the adapter slot cavity 93 in the adapter slot mechanism 9, completing the snap-fit ​​fixation of the snap-fit ​​cover 82, and completing the installation and fixation of the external pipeline, as well as the joint fixation of the base 1, well barrel 2 and well cover 3.

[0020] First, by utilizing the pre-reserved adapter holes 16 and positioning grooves 6 on the inner wall of the well shaft 2, and with the independently assembled installation ring 5 and compression-type connecting component 11 at the factory, pre-installation can be completed before arriving at the construction site. Combined with the quick-installation component 8 pre-installed on the well cover 3, after transportation to the pre-embedded construction site, by sequentially assembling the base 1, well shaft 2, and well cover 3, and with the external pipelines inserted on both sides, the downward compression force of the quick-installation component 8, along with the rotating snap-fit ​​after compression, increases the internal hydraulic pressure of the compression-type connecting component 11, simultaneously applying the hydraulic pressure to the clamping component 12, thus simultaneously completing the quick clamping and fixing of the inserted pipeline. Furthermore, since the installation ring and compression-type connecting component 11 are pre-assembled at the factory, quick and easy installation can be achieved on the construction site, simplifying operation and improving the efficiency of on-site installation and connection.

[0021] Furthermore, by utilizing the quick-installation component 8 and the positioning column 7 again, after the clamping action of the clamping component 12 is completed, the quick-installation component 8 is rotated synchronously to complete the snap-fit ​​with the positioning column 7. At the same time, the top of the quick-installation component 8 is snap-fitted and fixed with the adapter slot mechanism 9, thereby completing the relative snap-fit ​​of the base 1 and the manhole cover 3, and clamping and fixing the middle manhole 2. While fixing the casing pipeline, the fixing of each component of the inspection well is also completed, preventing displacement and tilting, and improving the stability and convenience of on-site installation of the inspection well.

[0022] The mounting ring 5 has a side opening 14 on its outer side and a sliding groove 15 on its inner end face. The sliding groove 15 is connected to the side opening 14. The well shaft 2 has an adapter hole 16 on its inner wall and a positioning groove 6 on its inner wall. The adapter hole 16 is connected to the mounting hole 4.

[0023] The mounting clip assembly 10 includes a slider 101, a spring 102, and a toggle block 103. The slider 101 is slidably sleeved in the side opening 14. One end of the spring 102 is fixedly connected to the slider 101, and the other end is fixed in the side opening 14. The toggle block 103 is slidably sleeved in the slide groove 15 and is fixedly connected to the slider 101. The slider 101 is adapted to the positioning groove 6.

[0024] The mounting clip assembly 10, in conjunction with the positioning groove 6, enables the mounting ring 5 to be fixed to the well shaft 2 after leaving the factory. Assembly can be completed before delivery to the construction site, reducing on-site installation steps and increasing on-site installation speed.

[0025] The clamping assembly 12 includes a push post 121, an arc-shaped clamping plate 122, a second spring 123, a mounting sleeve hole 124, and a reserved arc groove 125. The reserved arc groove 125 is formed on the inner wall of the mounting ring 5. The mounting sleeve hole 124 is formed inside the mounting ring 5 and communicates with the reserved arc groove 125. The push post 121 is movably sleeved in the mounting sleeve hole 124. One end of the second spring 123 is fixedly connected to the mounting sleeve hole 124, and the other end is fixedly connected to the push post 121. The arc-shaped clamping plate 122 is fixedly connected to one end of the push post 121 and is movably sleeved in the reserved arc groove 125. The communicating arc groove 13 and the mounting sleeve hole 124 are alternately distributed and communicate with each other.

[0026] The clamping assembly 12 achieves omnidirectional connectivity through the connecting arc groove 13, thereby enabling synchronous control of multiple clamping assemblies 12 under the hydraulic conduction of a set of connecting arc grooves 13. In conjunction with the hydraulic enhancement in the compression connecting assembly 11, which acts on the clamping assembly 12, the clamping assembly 12 is activated to achieve its action, completing the quick clamping and fixing of the pipeline into the installation ring 5.

[0027] The compression-type connecting component 11 includes a connecting sleeve 111, a fixed cylinder 112, a connecting frame 113, a curved tube 114, and an elastic storage bladder 115. The connecting frame 113 is fixedly connected to the side of the connecting sleeve 111 and communicates with the connecting sleeve 111. The other end of the connecting frame 113 is fixed to the end face of the mounting ring 5 and communicates with the connecting arc groove 13. The fixed cylinder 112 is located above the connecting sleeve 111. One end of the curved tube 114 is fixedly connected to the end face of the connecting sleeve 111, and the other end is fixedly connected to the fixed cylinder 112. The elastic storage bladder 115 is sleeved in the fixed cylinder 112, and the bottom of the elastic storage bladder 115 communicates with the curved tube 114.

[0028] The compression-type connecting component 11, together with the elastic storage bladder 115, stores liquid. Under the squeezing and pushing of the quick-installation component 8, the internal hydraulic pressure is emptied, and the liquid is squeezed into the clamping component 12 to complete the clamping action after hydraulic enhancement.

[0029] The connecting sleeve 111, connecting frame 113, connecting arc groove 13, and mounting sleeve hole 124 form a hydraulic communication channel. The elastic storage bladder 115 is a flexible compressible bladder with a pre-filled hydraulic medium inside. The connection of the above channels is sealed so that the hydraulic medium can be transmitted along the channels when under pressure. During installation, the quick-installation component 8 is pressed down to make the movable column 81 enter the connecting sleeve 111 and apply pressure to the elastic storage bladder 115. The hydraulic medium inside the bladder enters the connecting sleeve 111 through the curved pipe 114 and is distributed to each mounting sleeve hole 124 along the connecting arc groove 13, thereby pushing the push column 121 to drive the arc-shaped clamping plate 122 to move in the reserved arc groove 125 to clamp the outer pipeline. When the cover 82 moves down, rotates and is engaged in the adapter cavity 93, the quick-installation component 8 is held in the pressed position, thereby keeping the elastic storage bladder 115 under pressure and maintaining the clamping force. After the snap-fit ​​is released, the elastic storage bladder 115 rebounds and, in conjunction with the second spring 123, resets the push column 121, thereby releasing the clamping of the arc-shaped clamp 122 on the pipeline.

[0030] The quick-installation component 8 includes a movable column 81, a clip cover 82, a fixing ring 83, and a snap-fit ​​curved plate 84. The movable column 81 is movably sleeved in the manhole cover 3, the clip cover 82 is fixedly connected to the top of the movable column 81, and the outer side of the clip cover 82 includes a protrusion. The fixing ring 83 is fixedly sleeved on the outer surface of the movable column 81, and the snap-fit ​​curved plate 84 is fixed on the outer side of the fixing ring 83.

[0031] The quick-install component 8 compresses the compression-type connecting component 11 by moving downwards, and rotates after compression to lock and position with the positioning column 7. At the same time, it locks and fixes with the manhole cover 3. After clamping and fixing, the base 1, manhole 2 and manhole cover 3 are jointly fixed, resulting in high installation efficiency and good stability.

[0032] The top of the manhole cover 3 is provided with an adapter slot mechanism 9, which includes a top hole 91, a middle groove 92 and an adapter cavity 93. The top hole 91 is opened on the top of the manhole cover 3, the middle groove 92 is opened on the top of the manhole cover 3 and communicates with the top hole 91, and the adapter cavity 93 is opened inside the manhole cover 3. The adapter cavity 93 is located below the top hole 91 and communicates with the top hole 91. The adapter cavity 93 communicates with the middle groove 92. The inner diameter of the adapter cavity 93 is larger than the inner diameter of the top hole 91. After the cover 82 moves down and rotates, it is engaged in the adapter cavity 93.

[0033] The top locking is achieved by adapting the card slot mechanism 9 to the card cover 82 for sleeve and snap-fit.

[0034] The positioning post 7 includes a post body 71 and a positioning arc groove 72. The post body 71 is fixed inside the base 1. The positioning post 7 corresponds one-to-one with the quick-installation assembly 8. The positioning arc groove 72 is opened on the outer side of the post body 71 and is located on the moving path of the snap-fit ​​curved plate 84.

[0035] Positioning post 7 adapts to the snap-fit ​​locking of the snap-fit ​​curved plate 84, completing the fixed installation.

[0036] The working principle and usage process of this invention: During installation, before transporting to the installation site, the installation ring 5 is pre-operated by pushing and pulling the actuating block 103, causing the slider 101 to be hidden in the side opening 14 on the side of the installation ring 5. The installation ring 5 is then fitted into the adapter hole 16 along the inner wall of the well cylinder 2. The actuating block 103 is released, and the spring 102 elastically returns to its original position, pushing the slider 101 to slide along the side opening 14 into the positioning groove 6, completing the pre-installation before transportation. Before shipping, the quick-installation assembly 8 is movably installed on the well cover 3. Subsequently, all components are transported to the construction site. At the site, the base 1 is placed in the pre-buried pit, and then the well cylinder 2 is placed nested on top of the base 1. The well cylinder 2 is deflected so that the installation ring 5 corresponds to the positioning post 7 in the base 1, with the installation ring 5 centered between two adjacent sets of positioning posts 7. Then, the well cover 3 is covered, and the quick-installation assembly 8 is kept directly above the compression-type connecting assembly 11. The pipeline to be assembled is then placed along... The mounting hole 4 on the side of the wellbore 2 is inserted into the mounting ring 5. After the initial connection is completed, the quick installation component 8 is pressed down, so that the movable column 81 is inserted along the connecting sleeve 111 of the compression connecting component 11, and the compressed elastic storage bladder 115 is compressed. The hydraulic compression stored inside is introduced into the connecting arc groove 13 through the curved pipe 114 and the connecting frame 113, and pressed into the mounting sleeve hole 124, so that the pushing column 121 moves and the arc-shaped clamping plate 122 is clamped on the outside of the inserted pipeline, completing the installation and fixation of the pipeline after the connection. At the same time, the quick installation component 8 is rotated. At this time, the snap-fit ​​curved plate 84 in the quick installation component 8 is snapped into the positioning arc groove 72 of the positioning column 7 under rotation, and the snap-fit ​​cover 82 on the top of the movable column 81 and the outer protrusion block rotate along the inside of the adapter snap-fit ​​cavity 93 in the adapter snap-fit ​​mechanism 9, completing the snap-fit ​​fixation of the snap-fit ​​cover 82, and completing the installation and fixation of the external pipeline, as well as the joint fixation of the base 1, the wellbore 2 and the well cover 3.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast concrete sewage inspection well that is easy to install and connect, comprising a base (1), a well cylinder (2), and a well cover (3), characterized in that: The bottom of the well shaft (2) is adapted to fit into the top stepped groove of the base (1), and the bottom of the well cover (3) is adapted to fit into the top stepped groove of the well shaft (2). A positioning post (7) is fixedly provided inside the base (1). An installation hole (4) is provided on the outer side of the well shaft (2). An installation ring (5) is provided on the inner wall of the well shaft (2). An installation snap-fit ​​assembly (10) is provided on both sides of the installation ring (5). The installation ring (5) is fixed to the inner wall of the well shaft (2) by the installation snap-fit ​​assembly (10) and is aligned and connected with the installation hole (4). The inner wall of the installation ring (5) The mounting ring (5) is surrounded by clamping components (12). The mounting ring (5) has a connecting arc groove (13) inside. The clamping components (12) are connected to each other through the connecting arc groove (13). One end of the mounting ring (5) is fixedly provided with a compression connecting component (11). The compression connecting component (11) is connected to the connecting arc groove (13). The manhole cover (3) is movably fitted with a quick installation component (8). When the quick installation component (8) is pressed down, it is fitted into the compression connecting component (11). When the quick installation component (8) is pressed down and rotated, it is engaged with the positioning column (7).

2. The precast concrete sewage inspection well for easy installation and connection according to claim 1, characterized in that: The outer side of the mounting ring (5) is provided with a side opening (14), and the inner end face of the mounting ring (5) is provided with a sliding groove (15). The sliding groove (15) and the side opening (14) are connected. The inner wall of the well shaft (2) is provided with an adapter hole (16). The inner wall of the adapter hole (16) is provided with a positioning groove (6). The adapter hole (16) is connected with the mounting hole (4).

3. A precast concrete sewage inspection well that is easy to install and connect according to claim 2, characterized in that: The mounting clip assembly (10) includes a slider (101), a spring (102), and a toggle block (103). The slider (101) is slidably sleeved in the side opening (14). One end of the spring (102) is fixedly connected to the slider (101), and the other end is fixed in the side opening (14). The toggle block (103) is slidably sleeved in the groove (15) and fixedly connected to the slider (101). The slider (101) is adapted to the positioning groove (6).

4. A precast concrete sewage inspection well that is easy to install and connect according to claim 3, characterized in that: The clamping assembly (12) includes a push post (121), an arc-shaped clamping plate (122), a second spring (123), a mounting sleeve hole (124), and a reserved arc groove (125). The reserved arc groove (125) is opened on the inner wall of the mounting ring (5). The mounting sleeve hole (124) is opened inside the mounting ring (5) and communicates with the reserved arc groove (125). The push post (121) is movably sleeved in the mounting sleeve hole (124). One end of the second spring (123) is fixedly connected in the mounting sleeve hole (124), and the other end is fixedly connected to the push post (121). The arc-shaped clamping plate (122) is fixedly connected to one end of the push post (121) and movably sleeved in the reserved arc groove (125). The communicating arc groove (13) and the mounting sleeve hole (124) are alternately distributed and communicate with each other.

5. A precast concrete sewage inspection well for easy installation and connection according to claim 4, characterized in that: The compression-type connecting assembly (11) includes a connecting sleeve (111), a fixed cylinder (112), a connecting frame (113), a curved tube (114), and an elastic storage bladder (115). The connecting frame (113) is fixedly connected to the side of the connecting sleeve (111) and communicates with the connecting sleeve (111). The other end of the connecting frame (113) is fixed to the end face of the mounting ring (5) and communicates with the connecting arc groove (13). The fixed cylinder (112) is located above the connecting sleeve (111). One end of the curved tube (114) is fixedly connected to the end face of the connecting sleeve (111), and the other end is fixedly connected to the fixed cylinder (112). The elastic storage bladder (115) is sleeved in the fixed cylinder (112), and the bottom of the elastic storage bladder (115) is connected to the curved tube (114).

6. A precast concrete sewage inspection well for easy installation and connection according to claim 5, characterized in that: The quick-installation assembly (8) includes a movable column (81), a cover (82), a fixing ring (83), and a snap-fit ​​curved plate (84). The movable column (81) is movably fitted into the well cover (3). The cover (82) is fixedly connected to the top of the movable column (81). The outer side of the cover (82) includes a protrusion. The fixing ring (83) is fixedly fitted onto the outer surface of the movable column (81). The snap-fit ​​curved plate (84) is fixed to the outer side of the fixing ring (83).

7. A precast concrete sewage inspection well for easy installation and connection according to claim 6, characterized in that: The top of the manhole cover (3) is provided with an adapter slot mechanism (9). The adapter slot mechanism (9) includes a top hole (91), a middle groove (92) and an adapter cavity (93). The top hole (91) is opened on the top of the manhole cover (3). The middle groove (92) is opened on the top of the manhole cover (3) and communicates with the top hole (91). The adapter cavity (93) is opened inside the manhole cover (3). The adapter cavity (93) is located below the top hole (91) and communicates with the top hole (91). The adapter cavity (93) communicates with the middle groove (92). The inner diameter of the adapter cavity (93) is larger than the inner diameter of the top hole (91). The cover (82) is engaged in the adapter cavity (93) after being moved down and rotated.

8. A precast concrete sewage inspection well for easy installation and connection according to claim 7, characterized in that: The positioning post (7) includes a post body (71) and a positioning arc groove (72). The post body (71) is fixed inside the base (1). The positioning post (7) corresponds one-to-one with the quick installation assembly (8). The positioning arc groove (72) is opened on the outer side of the post body (71). The positioning arc groove (72) is located on the moving path of the snap-fit ​​curved plate (84).

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