An assembled prefabricated handhole well

Abstract

The present application relates to an assembled prefabricated manhole well, belonging to the technical field of manhole wells, comprising a well body, a bottom plate provided at the bottom end of the well body, a cover plate provided at the top end of the well body, the well body comprising four side plates connected end to end, the four side plates enclosing a rectangle, the inner sides of the four side plates providing a storage space for placing power or communication facilities, a plug-in slot provided on the bottom plate for inserting the bottom ends of the side plates, a slope provided between the inner and outer sides of the side plates, the slopes of two adjacent side plates abutting each other, an L-shaped plate provided between the two adjacent side plates, a limiting strip provided on the inner side of the L-shaped plate, a limiting groove provided on the outer side of the side plate adapted to the limiting strip, the limiting groove communicating with the top end of the side plate, the bottom end of the limiting strip abutting the bottom wall of the limiting groove, a connecting plate provided at the bottom end of the L-shaped plate, the connecting plate connected to the bottom plate via connecting bolts. The present application has the effect of reducing transportation costs.

Description

Technical Field

[0001] The present application relates to the field of handhole wells, and in particular to an assembled prefabricated handhole well. Background Art

[0002] A manhole is a well constructed in construction or municipal engineering to facilitate cable laying. It's a handhole, accessible only by hand, and is typically constructed of cement bricks. These bricks require construction workers to build the wells on site in advance, and then wait for the cement to solidify before use, making them cumbersome and time-consuming.

[0003] In order to solve the problems of troublesome and time-consuming construction of handhole wells, the patent with publication number CN205742274U discloses a prefabricated communication handhole well, including a tubular well chamber body, on which an access port and an access port are symmetrically arranged, and a drainage hole is opened at the bottom of the well chamber body; pipe holes are opened in the access port and the access port, and joints are placed in the pipe holes; and bolt holes are opened on the upper end face of the well chamber body.

[0004] Regarding the above technical solution, the inventor believes that since the above-mentioned prefabricated communication manhole well is an integrated structure, during the transportation process, the prefabricated communication manhole well will occupy a larger space, thereby increasing the transportation cost. Summary of the Invention

[0005] In order to reduce transportation costs, the present application provides an assembled prefabricated handhole well.

[0006] The present application provides an assembled prefabricated manhole well, which adopts the following technical solution:

[0007] The top of the well body is provided with a bottom plate, and the top of the well body is provided with a cover plate. The well body includes four side plates connected end to end, and the four side plates are enclosed to form a rectangle. The inner sides of the four side plates are provided with a receiving space for placing power or communication facilities. The bottom plate is provided with a plug-in slot for inserting the bottom ends of the side plates. A slope is provided between the inner and outer sides of the side plates, and the slopes of two adjacent side plates abut against each other. An L-shaped plate is provided between two adjacent side plates, and the inner side of the L-shaped plate is provided with a limit strip, and the outer side of the side plate is provided with a limit groove adapted to the limit strip, and the limit groove is connected to the top of the side plate, and the bottom end of the limit strip abuts against the bottom wall of the limit groove. The bottom end of the L-shaped plate is provided with a connecting plate, and the connecting plate is connected to the bottom plate by connecting bolts.

[0008] By adopting the above technical solution, during installation, the bottom ends of the side panels are first inserted into the insertion slots, so that the four side panels form a rectangle. Then, the L-shaped panels are installed: the limiting strips are aligned with the limiting grooves and inserted into the limiting grooves, and the adjacent side panels are connected together through the L-shaped panels. Finally, connecting bolts are installed on the connecting plate to fix the connecting plate to the bottom panel, thus completing the installation of the side panels and bottom panel. During transportation, due to the assembled structure, the side panels and bottom panel can be disassembled and the side panels can be compactly stacked, reducing the space occupied during transportation and thus reducing transportation costs.

[0009] Optionally, a mounting groove is provided on the slope surface, and the mounting groove is semicircular. The mounting grooves on adjacent slope surfaces form a circular groove, and an elastic tube is provided in the circular groove, and the outer wall of the elastic tube abuts against the inner wall of the mounting groove.

[0010] By adopting the above technical solution, during the installation of the side plates, the elastic tube is installed in the circular groove so that the outer wall of the elastic tube is fully fitted with the inner wall of the installation groove, thereby improving the sealing of the well body and reducing the possibility of accumulated water in the well body passing through the gap between the two side plates and causing erosion of the soil outside the well body.

[0011] Optionally, two oppositely arranged arc-shaped plates are provided in the elastic tube, wherein a sleeve is provided on the inner side of one of the arc-shaped plates, and a telescopic rod is provided on the inner side of the other arc-shaped plate, the telescopic rod is movably inserted in the sleeve, and a first elastic member is provided on the outer side of the sleeve, and the two ends of the first elastic member are respectively connected to the inner walls of the two arc-shaped plates.

[0012] By adopting the above technical solution, the first elastic member squeezes the two arc plates, so that the arc plates press the tube wall of the elastic tube against the groove wall of the installation groove, thereby further reducing the possibility of a gap between the elastic tube and the installation groove, thereby further improving the sealing of the well body.

[0013] Optionally, a sump is provided on the bottom plate, and a water outlet for connecting to a city drainage network is provided on the sump.

[0014] By adopting the above technical solution, the accumulated water in the well body accumulates in the sump, and the accumulated water in the sump is discharged into the urban drainage network through the outlet, which can reduce the amount of water accumulated in the accommodation space and thereby reduce the possibility of damage to the power or communication facilities in the accommodation space due to moisture.

[0015] Optionally, a rack is provided at one end of the L-shaped plate away from its own right-angle end, and a rotating gear is rotatably connected to the side plate, the rotating gear is engaged with the rack, a rotating shaft is coaxially fixed on the rotating gear, and a coil spring is provided on the outer side of the rotating shaft, one end of the coil spring is fixed to the rotating shaft, and the other end is fixed to the side plate.

[0016] By adopting the above technical solution, when cracks or damage occur in the side panels, there is no need to replace the entire panel, only the corresponding side panels need to be replaced. When removing the side panels, press the connecting plate downward to facilitate the removal of the connecting bolts. After the connecting bolts are removed, the coil spring resets, driving the rotating shaft to rotate, the rotation of the rotating shaft drives the rotating gear to rotate, the rotation of the rotating gear drives the rack to move upward, and the movement of the rack drives the L-shaped plate to move upward, thereby facilitating the removal of the L-shaped plate.

[0017] Optionally, a connecting column is passed through the cover plate, and a limiting end is provided at the top of the connecting column, and a threaded end is provided at the end of the connecting column away from the limiting end. The outer diameter of the connecting column does not exceed the inner diameter of the threaded end, and the side plate is provided with an internal thread that is compatible with the threaded end, and the bottom end of the internal thread is provided with a sliding groove, and the threaded end is arranged in the sliding groove. The bottom end of the cover plate is provided with a second elastic member, and the second elastic member is fitly arranged between the cover plate and the side plate. The bottom end of the cover plate is provided with a fixing frame, and a sealing ring is provided on the inner wall of the side plate, and the outer wall of the fixing frame abuts against the sealing ring.

[0018] By adopting this technical solution, when a pedestrian walks over the cover plate, the cover plate is subjected to a load. The second elastic member cushions the cover plate, reducing the impact on the cover plate, thereby reducing the possibility of cracks and damage to the cover plate. After the cover plate is installed, the outer wall of the fixing frame always maintains contact with the sealing ring, thereby ensuring the sealing of the well body and improving the waterproof performance of the manhole.

[0019] Optionally, a water pump is provided in the sump, a liquid level gauge is provided in the accommodating space, the liquid level gauge is electrically connected to the water pump, and the sump is arranged to be tapered from top to bottom.

[0020] By adopting the above technical solution, when the liquid level meter detects that the water level in the holding space has reached the set value, it sends an electrical signal, and the water pump starts after receiving the electrical signal, thereby extracting the accumulated water in the sump, and the extracted accumulated water is discharged to the outside of the well body, further reducing the possibility of damage to the power or communication facilities in the holding space due to moisture.

[0021] Optionally, a connecting pipe for connecting to a concealed pipe of the sidewalk is provided on the side wall of the side panel, a bellows is provided on the end of the connecting pipe away from the side panel, a rubber sleeve is provided on the end of the bellows away from the connecting pipe, and the end of the rubber sleeve away from the bellows is sleeved on the outside of the concealed pipe of the sidewalk, and a tightening mechanism is provided on the outside of the rubber sleeve for tightening the rubber sleeve onto the concealed pipe of the sidewalk.

[0022] By adopting the above technical solution, when the soil loss or collapse outside the well body causes the well body to sink, the corrugated pipe will deform, reducing the possibility of breakage of the connecting pipe or the sidewalk buried pipe, thereby ensuring the sealing of the connection between the connecting pipe and the sidewalk buried pipe, and always providing effective protection for the power or communication cables between the two.

[0023] Optionally, the tightening mechanism includes a tightening sleeve arranged on the outside of the rubber sleeve, a screwing shaft is rotatably provided on the tightening sleeve, and multiple screwing shafts are evenly arranged along the circumference of the tightening sleeve, a threaded section is provided at one end of the screwing shaft close to the rubber sleeve, a threaded barrel is sleeved on the threaded section, the threaded section is threadedly connected to the threaded barrel, and the end of the threaded barrel away from the screwing shaft is fixed to the rubber sleeve, a guide sleeve is provided on the threaded barrel, a guide rod is provided on the inner side of the tightening sleeve, the guide rod is passed through the guide sleeve and is slidably connected to the guide sleeve, and the tightening sleeve is provided with a driving mechanism that simultaneously drives all the screwing shafts to rotate in the same direction.

[0024] By adopting the above technical solution, when installing the sidewalk buried pipe and the connecting pipe, the driving mechanism is used to drive all the twisting shafts to rotate in the set direction. The rotation of the twisting shaft drives the threaded section to rotate. The rotation of the threaded section drives the threaded barrel to move away from the rubber sleeve along the axial direction of the twisting shaft, thereby radially stretching the rubber sleeve, making it easier to put the rubber sleeve on the outside of the sidewalk buried pipe; after the rubber sleeve is put on the sidewalk buried pipe, the driving mechanism is used to drive all the twisting shafts to rotate in the opposite direction of the set direction, so that the threaded barrel can move close to the rubber sleeve along the axial direction of the twisting shaft, thereby radially squeezing the rubber sleeve, so that the rubber sleeve is tightly clamped on the outside of the sidewalk buried pipe, ensuring the stability of the connection between the rubber sleeve and the sidewalk buried pipe.

[0025] Optionally, the driving mechanism includes a driving handwheel, which is coaxially fixed on the screwing shaft, and a bevel gear is coaxially fixed on the screwing shaft. The outer side of the tightening sleeve is provided with a bevel gear ring, the bevel gear ring is rotatably connected to the tightening sleeve, and the bevel gear is meshed with the bevel gear ring.

[0026] By adopting the above technical solution, one of the driving handwheels is rotated, and the rotation of the driving handwheel drives the corresponding screwing shaft to rotate, and the rotation of the screwing shaft drives the corresponding bevel gear to rotate, and the rotation of the bevel gear drives the bevel gear ring to rotate, and the rotation of the bevel gear ring drives all other bevel gears to rotate, thereby achieving the purpose of simultaneously driving all the screwing shafts to rotate in the same direction.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Through the setting of side panels, bottom panels and L-shaped panels, the side panels and bottom panels can be separated during transportation due to the assembled structure, and the side panels can be compactly stacked, which reduces the space occupied during transportation and thus reduces transportation costs;

[0029] 2. Through the arrangement of the elastic tube and the first elastic member, and through the compression of the two curved plates by the first elastic member, the curved plates press the tube wall of the elastic tube against the groove wall of the installation groove, thereby further reducing the possibility of a gap between the elastic tube and the installation groove, thereby further improving the sealing performance of the well body;

[0030] 3. Through the setting of the bellows, when the soil loss or collapse outside the well body causes the well body to sink, the bellows will deform to reduce the possibility of breakage of the connecting pipe or the sidewalk buried pipe, thereby ensuring the sealing of the connection between the connecting pipe and the sidewalk buried pipe, and always providing effective protection for the power or communication cables between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 2 It is a structural diagram of the accommodation space in the embodiment of the present application.

[0033] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0034] Figure 4 It is a cross-sectional view showing the internal structure of the elastic tube in the embodiment of the present application.

[0035] Figure 5 It is a cross-sectional view showing the connection relationship between the cover plate and the side plate in the embodiment of the present application.

[0036] Figure 6 It is a structural diagram of the fixed frame in the embodiment of the present application.

[0037] Figure 7 It is a schematic diagram of the structure of the rubber sleeve in the embodiment of the present application.

[0038] Figure 8 It is a structural diagram of the driving mechanism in the embodiment of the present application.

[0039] Explanation of reference numerals: 1, well body; 11, side plate; 111, slope; 1111, mounting groove; 1112, elastic tube; 1113, arc plate; 1114, casing; 1115, telescopic rod; 1116, first elastic member; 112, limiting groove; 113, fixing plate; 114, internal thread; 1141, sliding groove; 115, sealing ring; 116, connecting pipe; 117, bellows; 118, rubber sleeve; 12, accommodating space; 121, liquid level gauge; 13, L-shaped plate; 131, limiting strip; 132, connecting plate; 1321, connecting bolt; 133, rack; 1 4. Rotating gear; 141. Rotating shaft; 1411. Coil spring; 2. Bottom plate; 21. Connecting slot; 22. Sump; 221. Water outlet; 222. Water pump; 3. Cover plate; 31. Connecting column; 311. Limiting end; 312. Threaded end; 32. Second elastic member; 33. Fixing frame; 4. Drainage network; 5. Concealed sidewalk pipe; 6. Tightening mechanism; 61. Tightening sleeve; 611. Guide rod; 62. Twisting shaft; 621. Threaded section; 622. Threaded barrel; 6221. Guide sleeve; 7. Driving mechanism; 71. Driving handwheel; 72. Bevel gear; 73. Bevel gear ring. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-8 , further details of this application are given.

[0041] The present application discloses an assembled prefabricated handhole well. Figure 1 A prefabricated assembled handhole well comprises a well body 1, a bottom plate 2 is installed at the bottom end of the well body 1, and a cover plate 3 is installed at the top end of the well body 1.

[0042] Reference Figure 2 and Figure 3 The well body 1 includes four side panels 11 connected end to end. The four side panels 11 are enclosed to form a rectangle. The inner sides of the four side panels 11 are enclosed to form a storage space 12 for placing power or communication facilities. The bottom plate 2 is provided with a plug-in slot 21 for inserting the bottom end of the side panel 11. A slope 111 is provided between the inner and outer sides of the side panel 11. The slopes 111 of two adjacent side panels 11 abut against each other. An L-shaped plate 13 is connected between two adjacent side panels 11. The inner side of the L-shaped plate 13 is integrally formed with a limiting strip 131. The limiting strip 131 is arranged along the length direction of the L-shaped plate 13. The outer side of the side panel 11 is provided with a limiting groove 112 that is compatible with the limiting strip 131. The limiting groove 112 is connected to the top of the side panel 11, and the bottom end of the limiting strip 131 abuts against the bottom wall of the limiting groove 112. A connecting plate 132 is fixedly connected to the bottom end of the L-shaped plate 13 , and the connecting plate 132 is connected to the bottom plate 2 via connecting bolts 1321 .

[0043] During installation, first insert the bottom end of the side panel 11 into the plug-in slot 21 so that the four side panels 11 form a rectangle; then install the L-shaped panel 13: align the limiting strip 131 with the limiting groove 112 and insert the limiting strip 131 into the limiting groove 112, and connect the adjacent side panels 11 together through the L-shaped panel 13; finally, install the connecting bolt 1321 on the connecting plate 132 to fix the connecting plate 132 to the bottom plate 2, thereby completing the installation of the side panel 11 and the bottom plate 2.

[0044] Reference Figure 3 The slope 111 is provided with a mounting groove 1111, which is arranged along the height direction of the well body 1. The mounting groove 1111 is semicircular, and the mounting grooves 1111 on adjacent slopes 111 form a circular groove. An elastic tube 1112 is installed in the circular groove, and the outer wall of the elastic tube 1112 abuts against the inner wall of the mounting groove 1111. In this embodiment, the elastic tube 1112 is made of rubber. During the installation of the side panels 11, the elastic tube 1112 is installed in the circular groove so that the outer wall of the elastic tube 1112 fully fits the inner wall of the mounting groove 1111, which can improve the sealing performance of the well body 1 and reduce the possibility of accumulated water in the well body 1 penetrating the gap between the two side panels 11 and then scouring the earth outside the well body 1, thereby reducing the possibility of landslides on the ground outside the well body 1.

[0045] Reference Figure 3 and Figure 4 To further enhance the sealing performance of wellbore 1, two curved plates 1113 are fixed to the inner wall of elastic tube 1112. These two curved plates 1113 are positioned opposite each other. A sleeve 1114 is fixedly connected to the inner side of one of the curved plates 1113. Multiple sleeves 1114 are evenly spaced along the length of the curved plate 1113. A telescopic rod 1115 is fixedly connected to the inner side of the other curved plate 1113. Multiple telescopic rods 1115 are positioned along the length of the curved plate 1113. These rods 1115 are inserted into and slidably connected to their corresponding sleeves 1114. A first elastic member 1116 is sleeved on the outer side of the sleeve 1114. The two ends of the first elastic member 1116 are connected to the inner sidewalls of the two curved plates 1113. In this embodiment, the first elastic member 1116 is a helical compression spring. By squeezing the two arc plates 1113 by the first elastic member 1116, the arc plates 1113 press the tube wall of the elastic tube 1112 against the groove wall of the installation groove 1111, thereby further reducing the possibility of a gap between the elastic tube 1112 and the installation groove 1111, thereby achieving the purpose of improving the sealing of the well body 1.

[0046] Reference Figure 1A sump 22 is integrally formed on the bottom plate 2. An outlet 221 is provided at the bottom of the sidewall of the sump 22 for connection to the urban drainage network 4. Water accumulated in the well body 1 accumulates in the sump 22 and is then discharged into the urban drainage network 4 through the outlet 221. This reduces the amount of water accumulated in the accommodation space 12, thereby reducing the possibility of damage to the power or communication facilities in the accommodation space 12 due to moisture.

[0047] Reference Figure 2 To further reduce the possibility of moisture damage to the electrical or communication facilities in the storage space 12, a pump 222 is installed on the bottom wall of the sump 22. A liquid level gauge 121 is installed in the storage space 12. The liquid level gauge 121 is fixed to the inner wall of one of the side panels 11 and is electrically connected to the pump 222. When the liquid level gauge 121 detects that the water level in the storage space 12 has reached a set value, it sends an electrical signal. The pump 222 receives the electrical signal and starts to pump the accumulated water in the sump 22. The pumped water is then discharged to the outside of the well body 1. The sump 22 is tapered from top to bottom, so that the sediment in the accumulated water in the sump 22 can automatically gather at the water inlet of the pump 222. When the pump 222 is started, the sediment can be discharged from the sump 22 in a timely manner, thereby effectively keeping the bottom of the sump 22 clean for a long time and reducing the accumulation of sediment caused by untimely discharge of sediment, thereby affecting the efficiency of the water pump.

[0048] Reference Figure 2 and Figure 3A rack 133 is fixedly connected to one end of the L-shaped plate 13, away from the right-angled end thereof. The rack 133 is arranged along the length of the L-shaped plate 13. A rotating gear 14 is rotatably connected to the side plate 11, meshing with the rack 133. A rotating shaft 141 is coaxially fixed to the rotating gear 14. A coil spring 1411 is sleeved around the outer side of the rotating shaft 141. A fixed plate 113 is fixed to the outer side wall of the side plate 11. One end of the coil spring 1411 is fixed to the outer side wall of the rotating shaft 141, and the other end is fixed to the fixed plate 113. During the installation of the L-shaped plate 13, the rack 133 slides downward, driving the rotating gear 14 to rotate. The rotation of the rotating gear 14 drives the rotating shaft 141 to rotate. The rotation causes the coil spring 1411 to store force. After the L-shaped plate 13 is installed, the coil spring 1411 wants to return to its original state, causing the rack 133 to tend to move upward. The movement of the rack 133 drives the L-shaped plate 13 to move, and then drives the connecting plate 132 to move, so that the connecting plate 132 is subjected to a vertical upward force. Therefore, the connecting plate 132 presses against the connecting bolt 1321, reducing the possibility of the connecting bolt 1321 loosening. In addition, when cracks or damage occurs on the side panel 11, the corresponding side panel 11 is replaced. When removing the side panel 11, press the connecting plate 132 downward to facilitate the removal of the connecting bolt 1321. After the connecting bolt 1321 is removed, the coil spring 1411 resets, driving the rotating shaft 141 to rotate. The rotation of the rotating shaft 141 drives the rotating gear 14 to rotate. The rotation of the rotating gear 14 drives the rack 133 to move upward. The movement of the rack 133 drives the L-shaped plate 13 to move upward, thereby facilitating the removal of the L-shaped plate 13.

[0049] Reference Figure 2 、 Figure 5 and Figure 6 The cover plate 3 is provided with a connecting column 31. A limiting end 311 is fixed to the top of the connecting column 31. A threaded end 312 is coaxially fixed to the end of the connecting column 31 away from the limiting end 311. The outer diameter of the connecting column 31 does not exceed the inner diameter of the threaded end 312. The top of the side plate 11 is provided with an internal thread 114 that matches the threaded end 312. The bottom end of the internal thread 114 is provided with a sliding groove 1141. The threaded end 312 is slidably arranged in the sliding groove 1141 along the vertical direction. A second elastic member 32 is fixed to the bottom end of the cover plate 3. The second elastic member 32 is fitted between the cover plate 3 and the side plate 11. The bottom end of the cover plate 3 is fixedly connected to a fixing frame 33. A sealing ring 115 is embedded on the inner wall of the side plate 11. The outer wall of the fixing frame 33 abuts against the sealing ring 115. In this embodiment, the second elastic member 32 is a helical compression spring; the sealing ring 115 is made of nitrile rubber, which has good wear resistance.

[0050] When installing the cover plate 3, place the cover plate 3 on the side plate 11 and align the fixing frame 33 with the inner wall of the side plate 11. After inserting the fixing frame 33 between the four side plates 11, align the threaded end 312 with the internal thread 114 and rotate the limiting end 311 so that the threaded end 312 is screwed into the internal thread 114. Continue to rotate the limiting end 311 until the threaded end 312 is disengaged from the internal thread 114 and enters the sliding groove 1141. At this time, the second elastic member 32 is fitted between the cover plate 3 and the side plate 11. When a pedestrian walks on the cover plate 3, the cover plate 3 is subjected to a load. The second elastic member 32 cushions the cover plate 3, reducing the impact on the cover plate 3, thereby reducing the possibility of cracks and damage to the cover plate 3. After the cover plate 3 is installed, the outer wall of the fixing frame 3 always remains in contact with the sealing ring 115, thereby ensuring the sealing of the well body 1 and improving the waterproof performance of the handhole well.

[0051] Reference Figure 2 and Figure 7 The side panels 11 are fixedly connected to the sidewalls of the side panels 11 with connecting pipes 116 for connecting to the sidewalk's buried pipes 5, which are used to lay power or communication cables. A bellows 117 is fixedly connected to the end of the connecting pipe 116 that is away from the side panels 11. A rubber sleeve 118 is fixedly connected to the end of the bellows 117 that is away from the connecting pipe 116. The end of the rubber sleeve 118 that is away from the bellows 117 is sleeved onto the outside of the sidewalk's buried pipe 5. A tightening mechanism 6 is provided on the outside of the rubber sleeve 118 for tightening the rubber sleeve 118 to the sidewalk's buried pipe 5.

[0052] When the soil loss or collapse outside the well body 1 causes the well body 1 to sink, the bellows 117 is deformed to reduce the possibility of breakage of the connecting pipe 116 or the sidewalk buried pipe 5, thereby ensuring the sealing of the connection between the connecting pipe 116 and the sidewalk buried pipe 5, and always providing effective protection for the power or communication cables between the two.

[0053] Reference Figure 7 and Figure 8 The tightening mechanism 6 includes a tightening sleeve 61, which is sleeved on the outside of the rubber sleeve 118. A screwing shaft 62 is rotatably connected to the tightening sleeve 61. A plurality of screwing shafts 62 are evenly arranged along the circumference of the tightening sleeve 61. A threaded section 621 is coaxially fixed to the end of the screwing shaft 62 close to the rubber sleeve 118. A threaded barrel 622 is sleeved on the threaded section 621. The threaded section 621 is threadedly connected to the threaded barrel 622. The end of the threaded barrel 622 away from the screwing shaft 62 is fixed to the rubber sleeve 118. A guide sleeve 6221 is fixedly connected to the side wall of the threaded barrel 622. A guide rod 611 is fixedly connected to the inner side of the tightening sleeve 61. The guide rod 611 is inserted into the guide sleeve 6221 and is slidably connected to the guide sleeve 6221. The tightening sleeve 61 is provided with a driving mechanism 7 that simultaneously drives all the screwing shafts 62 to rotate in the same direction.

[0054] Reference Figure 8 The driving mechanism 7 includes a driving hand wheel 71, which is coaxially fixed to the screwing shaft 62. A bevel gear 72 is coaxially fixed to the screwing shaft 62, and a bevel gear ring 73 is provided on the outer side of the clamping sleeve 61. The bevel gear ring 73 is rotatably connected to the clamping sleeve 61 and the bevel gear 72 is meshed with the bevel gear ring 73.

[0055] When installing the sidewalk buried pipe 5 and the connecting pipe 116, one of the driving handwheels 71 is rotated in the set direction. The rotation of the driving handwheel 71 drives the corresponding screwing shaft 62 to rotate. The rotation of the screwing shaft 62 drives the corresponding bevel gear 72 to rotate. The rotation of the bevel gear 72 drives the bevel gear ring 73 to rotate. The rotation of the bevel gear ring 73 drives all other bevel gears 72 to rotate, and then drives all other screwing shafts 62 to rotate. The rotation of the twisting shaft 62 drives the threaded section 621 to rotate, and the rotation of the threaded section 621 drives the threaded barrel 622 to move away from the rubber sleeve 118 along the axial direction of the twisting shaft 62, thereby radially stretching the rubber sleeve 118, making it easier to sleeve the rubber sleeve 118 on the outside of the sidewalk buried pipe 5; after the rubber sleeve 118 is sleeved on the sidewalk buried pipe 5, the driving handwheel 71 is rotated in the opposite direction of the set direction, so that the threaded barrel 622 can be moved along the axial direction of the twisting shaft 62 close to the rubber sleeve 118, thereby radially squeezing the rubber sleeve 118, so that the rubber sleeve 118 is tightened on the outside of the sidewalk buried pipe 5, ensuring the stability of the connection between the rubber sleeve 118 and the sidewalk buried pipe 5.

[0056] The principle of the assembled prefabricated manhole in the embodiment of the present application is as follows: the manhole is assembled, and its side panels 11 and bottom panel 2 can be disassembled for transportation. The disassembled side panels 11 can be compactly stacked, reducing the space occupied during transportation and thus reducing transportation costs. In addition, when stored in a warehouse, the storage space can be compressed, reducing storage costs.

[0057] When installing the handhole well, first insert the bottom end of the side panel 11 into the plug-in groove 21, so that the four side panels 11 form a rectangle; then install the L-shaped plate 13: align the limiting strip 131 with the limiting groove 112 and insert the limiting strip 131 into the limiting groove 112, and connect the adjacent side panels 11 together through the L-shaped plate 13. During the installation of the side panel 11, install the elastic tube 1112 into the circular groove so that the outer wall of the elastic tube 1112 is fully fitted with the inner wall of the installation groove 1111; finally, install the connecting bolt 1321 on the connecting plate 132 to fix the connecting plate 132 to the bottom plate 2, thereby completing the installation of the side panel 11 and the bottom plate 2.

[0058] When installing the cover plate 3, place the cover plate 3 on the side plate 11 and align the fixing frame 33 with the inner wall of the side plate 11. After inserting the fixing frame 33 between the four side plates 11, align the threaded end 312 with the internal thread 114 and rotate the limiting end 311 so that the threaded end 312 is screwed into the internal thread 114. Continue to rotate the limiting end 311 until the threaded end 312 disengages from the internal thread 114 and enters the sliding groove 1141. At this time, the second elastic member 32 is fitted between the cover plate 3 and the side plate 11. When a pedestrian walks on the cover plate 3, the cover plate 3 is subjected to a load. The second elastic member 32 cushions the cover plate 3, reducing the impact on the cover plate 3, thereby reducing the possibility of cracks and damage to the cover plate 3.

[0059] When installing the sidewalk buried pipe 5 and the connecting pipe 116, one of the driving handwheels 71 is rotated in the set direction. The rotation of the driving handwheel 71 drives the corresponding screwing shaft 62 to rotate. The rotation of the screwing shaft 62 drives the corresponding bevel gear 72 to rotate. The rotation of the bevel gear 72 drives the bevel gear ring 73 to rotate. The rotation of the bevel gear ring 73 drives all other bevel gears 72 to rotate, and then drives all other screwing shafts 62 to rotate. The rotation of the twisting shaft 62 drives the threaded section 621 to rotate, and the rotation of the threaded section 621 drives the threaded barrel 622 to move away from the rubber sleeve 118 along the axial direction of the twisting shaft 62, thereby radially stretching the rubber sleeve 118, making it easier to sleeve the rubber sleeve 118 on the outside of the sidewalk buried pipe 5; after the rubber sleeve 118 is sleeved on the sidewalk buried pipe 5, the driving handwheel 71 is rotated in the opposite direction of the set direction, so that the threaded barrel 622 can be moved along the axial direction of the twisting shaft 62 close to the rubber sleeve 118, thereby radially squeezing the rubber sleeve 118, so that the rubber sleeve 118 is tightened on the outside of the sidewalk buried pipe 5, ensuring the stability of the connection between the rubber sleeve 118 and the sidewalk buried pipe 5.

[0060] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An assembled prefabricated handhole well, comprising a well body (1), a bottom plate (2) provided at the bottom end of the well body (1), and a cover plate (3) provided at the top end of the well body (1), characterized in that: The well body (1) comprises four side panels (11) connected end to end, the four side panels (11) enclosed together to form a rectangle, the inner sides of the four side panels (11) are provided with a receiving space (12) for placing power or communication facilities, the bottom plate (2) is provided with a plug-in slot (21) for inserting the bottom end of the side panel (11), a slope (111) is provided between the inner and outer sides of the side panel (11), the slopes (111) of two adjacent side panels (11) abut against each other, an L-shaped panel (13) is provided between the two adjacent side panels (11), and a limit strip (131) is provided on the inner side of the L-shaped panel (13). ), the outer side of the side plate (11) is provided with a limiting groove (112) adapted to the limiting strip (131), the limiting groove (112) is communicated with the top end of the side plate (11), the bottom end of the limiting strip (131) is in contact with the bottom wall of the limiting groove (112), the bottom end of the L-shaped plate (13) is provided with a connecting plate (132), the connecting plate (132) is connected to the bottom plate (2) by a connecting bolt (1321); the end of the L-shaped plate (13) away from its right-angle end is provided with a rack (133), the side plate (11) is rotatably connected to a rotating gear (14), the rotating gear ( 14) is meshed with the rack (133), a rotating shaft (141) is coaxially fixed on the rotating gear (14), a coil spring (1411) is sleeved on the outer side of the rotating shaft (141), one end of the coil spring (1411) is fixed to the rotating shaft (141), and the other end is fixed to the side plate (11); a connecting column (31) is passed through the cover plate (3), a limiting end (311) is provided at the top of the connecting column (31), a threaded end (312) is provided at one end of the connecting column (31) away from the limiting end (311), and the outer diameter of the connecting column (31) does not exceed the inner diameter of the threaded end (312) The side plate (11) is provided with an internal thread (114) adapted to the threaded end (312), the bottom end of the internal thread (114) is provided with a sliding groove (1141), the threaded end (312) is arranged in the sliding groove (1141), the bottom end of the cover plate (3) is provided with a second elastic member (32), the second elastic member (32) is fitted between the cover plate (3) and the side plate (11), the bottom end of the cover plate (3) is provided with a fixing frame (33), the inner wall of the side plate (11) is provided with a sealing ring (115), and the outer wall of the fixing frame (33) is in contact with the sealing ring (115).

2. The assembled prefabricated manhole well according to claim 1, characterized in that: The slope (111) is provided with a mounting groove (1111), the mounting groove (1111) is semicircular, and the mounting grooves (1111) on adjacent slopes (111) form a circular groove, an elastic tube (1112) is provided in the circular groove, and the outer wall of the elastic tube (1112) abuts against the inner wall of the mounting groove (1111).

3. The assembled prefabricated manhole well according to claim 2, characterized in that: Two oppositely arranged arc-shaped plates (1113) are provided in the elastic tube (1112), wherein a sleeve (1114) is provided on the inner side of one of the arc-shaped plates (1113), and a telescopic rod (1115) is provided on the inner side of the other arc-shaped plate (1113), wherein the telescopic rod (1115) is movably inserted into the sleeve (1114), and a first elastic member (1116) is provided on the outer side of the sleeve (1114), and the two ends of the first elastic member (1116) are respectively connected to the inner side walls of the two arc-shaped plates (1113).

4. The assembled prefabricated manhole well according to claim 3, characterized in that: A water collection pit (22) is provided on the bottom plate (2), and a water outlet (221) for connecting to the urban drainage network (4) is provided on the water collection pit (22).

5. The assembled prefabricated manhole well according to claim 4, characterized in that: A water pump (222) is provided in the sump (22), a liquid level meter (121) is provided in the accommodating space (12), the liquid level meter (121) is electrically connected to the water pump (222), and the sump (22) is arranged to be gradually reduced from top to bottom.

6. The assembled prefabricated manhole well according to claim 1, characterized in that: A connecting pipe (116) for connecting to a sidewalk buried pipe (5) is provided on the side wall of the side panel (11); a bellows (117) is provided at one end of the connecting pipe (116) away from the side panel (11); a rubber sleeve (118) is provided at one end of the bellows (117) away from the connecting pipe (116); an end of the rubber sleeve (118) away from the bellows (117) is sleeved on the outside of the sidewalk buried pipe (5); and a tightening mechanism (6) for tightening the rubber sleeve (118) on the sidewalk buried pipe (5) is provided on the outside of the rubber sleeve (118).

7. The assembled prefabricated manhole well according to claim 6, characterized in that: The tightening mechanism (6) comprises a tightening sleeve (61) arranged outside the rubber sleeve (118), a screwing shaft is rotatably arranged on the tightening sleeve (61), a plurality of screwing shafts are evenly arranged along the circumference of the tightening sleeve (61), a threaded section (621) is provided at one end of the screwing shaft close to the rubber sleeve (118), a threaded barrel (622) is sleeved on the threaded section (621), and the threaded section (621) is threadedly connected to the threaded barrel (622). One end of the threaded barrel (622) away from the screwing shaft is fixed to the rubber sleeve (118), and a guide sleeve (6221) is provided on the threaded barrel (622). A guide rod (611) is provided on the inner side of the tightening sleeve (61), and the guide rod (611) is inserted into the guide sleeve (6221) and is slidably connected to the guide sleeve (6221). A driving mechanism (7) is provided on the tightening sleeve (61) for simultaneously driving all the screwing shafts to rotate in the same direction.

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