Fabricated inspection well mouth reinforcing device and reinforcing method

Abstract

The invention discloses an assembly type inspection well mouth reinforcing device and method, and belongs to the technical field of inspection wells. The assembly type inspection well mouth reinforcing device comprises a connecting base arranged above a well body, a supporting base is arranged above the connecting base, the connecting base and the supporting base are connected through a locking mechanism, a well lid is hinged to the top of the connecting base, and a protection mechanism is arranged in the connecting base; a plurality of clamping blocks are evenly arranged on the locking mechanism lower fixing plate, locking columns are arranged below the clamping blocks, an annular sliding groove is formed in the upper surface of the connecting base, the locking columns are located in the sliding groove and connected with the sliding groove in a sliding mode, clamping holes corresponding to the clamping blocks one to one are formed in the sliding groove, locking holes are formed in the bottoms of the clamping holes, and the locking columns are inserted into the locking holes. And a locking structure for locking the lock column is arranged in the lock hole. By the adoption of the assembly type inspection well mouth reinforcing device and method, the problem that an existing reinforcing device is inconvenient to install and use can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of inspection well structures, and in particular to an assembled inspection well mouth reinforcement device and a reinforcement method. Background Art

[0002] Municipal inspection wells are mainly set up on the road surface. As the road surface settles, the wellheads of the inspection wells are easily damaged, and the wellheads of the inspection wells need to be reinforced. During the road repair process, due to the height difference between the newly paved road surface and the original road surface, the wellheads also need to be lifted and reinforced. The current method of reinforcing the entrance of the inspection well generally only places steel bars and pours concrete around the inspection well, but this reinforcement method has a relatively poor reinforcement effect on the entrance of the inspection well. In the lifting and reinforcement of the entrance of the inspection well, a mold is generally placed above the wellhead, and then concrete is poured around the wellhead. However, the lifting and reinforcement mold has a relatively poor support effect on the wellhead, and the installation is also very inconvenient.

[0003] Existing patent CN202310171344.8 A lifting and reinforcement tool and construction method for protecting the structural layer around the inspection well. Two circular steel rings A and B with the same structure but different diameters are used in the paving process of the road subbase, road base and road asphalt layer. The circular steel rings A or the circular steel rings B are connected together by connecting ears, and anchoring steel nails are driven into the reserved holes of the bottom connecting ears. Finally, holes are formed around the inspection well shaft and the holes are poured with concrete. The quality of the road structural layer around the inspection well is guaranteed. When constructing around the inspection well, the surrounding structural layer is no longer disturbed, and there is no need for reverse excavation process, which maximizes the integrity of the road structural layer around the inspection well. However, the above-mentioned patent reinforcement tool needs to be fixed with anchor nails, which is inconvenient to install and use. Summary of the invention

[0004] The purpose of the present invention is to provide an assembled inspection well mouth reinforcement device and reinforcement method to solve the problem that the existing reinforcement device is inconvenient to install and use.

[0005] To achieve the above-mentioned purpose, the present invention provides an assembled inspection well mouth reinforcement device, including a connecting seat arranged above the well body, the bottom of the connecting seat is fixedly connected to the well body, a supporting seat is arranged above the connecting seat, the connecting seat and the supporting seat are connected by a locking mechanism, the top of the connecting seat is hinged with a well cover, and a protective mechanism is arranged inside the connecting seat; the locking mechanism includes a lower fixed plate, a plurality of clamping blocks are evenly arranged on the lower fixed plate, a locking column is arranged below the clamping block, the clamping block and the locking column are coaxially arranged, an annular sliding groove is arranged on the upper surface of the connecting seat, the locking column is located in the sliding groove and is slidably connected to the sliding groove, a clamping hole corresponding to the clamping block is arranged on the sliding groove, a locking hole is arranged at the bottom of the clamping hole, the aperture of the clamping hole is larger than the aperture of the locking hole and the width of the sliding groove, the locking column is inserted in the locking hole, and a locking structure for locking the lock column is arranged in the lock hole.

[0006] Preferably, a clamping seat is provided on the lower surface of the connecting seat, and the clamping seat is an annular structure with a U-shaped cross section, and the clamping seat is clamped on the outside of the top end of the well body.

[0007] Preferably, the locking structure includes a locking pin, which is slidably arranged in a first mounting groove, which is arranged in a fixed seat, which is fixedly arranged on the side wall of the connecting seat, the first mounting groove is connected to the locking hole, a locking hole for inserting the locking pin is arranged on the locking column, a first spring is arranged between the locking pin and the first mounting groove, and the locking pin is inserted into the locking hole under the action of the first spring; a sliding structure is arranged on the fixed seat to drive the locking pin to slide in the first mounting groove.

[0008] Preferably, the sliding structure includes a slider, which is arranged at one end of the locking pin, the slider is located in the first mounting groove and is slidably connected to the first mounting groove, the first spring is arranged between the slider and the end of the first mounting groove, a transmission hole is arranged in the middle of the slider, and a slope gradually inclined inward from top to bottom is arranged at the end of the transmission hole away from the locking pin, a pressure rod is arranged inside the transmission hole, a through hole for the pressure rod to pass through is arranged on the fixed seat, the through hole is communicated with the first mounting groove, the pressure rod is slidably connected to the fixed seat, a connecting plate is arranged at the end of the pressure rod extending out of the fixed seat, a second spring is arranged between the connecting plate and the fixed seat, and the pressure rod contacts the inclined surface of the transmission hole under the action of the second spring.

[0009] Preferably, the first mounting groove is a stepped groove, and an upper portion of one end of the locking pin extending out of the first mounting groove is provided with an inclined surface for facilitating the insertion of the lock column into the lock hole.

[0010] Preferably, an upper fixing plate is provided on the top of the support seat, a groove for placing the manhole cover is provided on the upper fixing plate, an installation groove is provided on the groove, a rotating shaft is provided in the installation groove, the manhole cover is rotatably connected to the support seat via the rotating shaft, a number of connecting holes are evenly provided on the groove, and the manhole cover is fixedly connected to the support seat via bolts and the connecting holes.

[0011] Preferably, the protective mechanism includes a center seat, a plurality of second mounting grooves are evenly arranged in a circular array inside the center seat, a support rod is slidably arranged in the second mounting groove, a power structure for driving the support rod to slide in the second mounting groove is arranged inside the center seat, and a clamping groove for inserting the support rod and clamping the support rod on the support seat is arranged on the inner wall of the support seat.

[0012] Preferably, the power structure includes a conical transmission seat, a third mounting groove is provided at the center of the center seat, the transmission seat is slidably arranged in the third mounting groove, a positioning plate is provided on the support rod, a third spring is provided between the positioning plate and the center seat, the end of the support rod contacts the side wall of the transmission seat under the action of the third spring, a screw is provided on the transmission seat, a turning handle for driving the screw to rotate is provided at the top of the screw, a limiting plate is provided at the bottom end of the screw, and the screw is threadedly connected to the upper support plate provided on the top of the center seat and the lower support plate provided at the bottom of the center seat.

[0013] Preferably, the slot includes a horizontally arranged annular groove, which corresponds one-to-one to the support rod, a vertical slot is arranged at one end of the annular groove, the top of the slot is located in the groove, and a horizontal limiting hole is arranged at the other end of the annular groove, and the end of the support rod is inserted into the limiting hole.

[0014] The reinforcement method based on the above-mentioned assembled inspection wellhead reinforcement device comprises the following steps: S1. Place the connection seat above the well body, clamp the clamp seat on the outside of the well body, and fix the well body and the clamp seat with bolts; S2. Place the support seat above the connecting seat, the locking column at the bottom of the support seat is located in the slide groove, rotate the support seat, the support seat drives the locking column to slide in the slide groove, the locking column slides into the lock hole through the card hole along the slide groove, the card block is inserted into the card hole, the bottom of the lock column pushes the locking pin outward, the first spring is compressed, after the lock column is inserted into the lock hole, the locking pin is inserted into the locking hole under the action of the first spring; S3. Insert the support rods into the slots one by one, push the center seat downward, the center seat drives the support rods to move downward synchronously, after the support rods slide to the bottom of the slots, rotate the center seat, the center seat drives the support rods to slide along the annular groove, after the support rods slide to the end of the annular groove, turn the screw by turning the handle, the screw drives the transmission seat downward through the threaded transmission, the transmission seat pushes the support rods to slide outward through the inclined surface, the support rods are inserted into the limiting holes, and the support rods are locked with the support seat; S4. Install the manhole cover in the groove of the support seat, rotate the manhole cover, the manhole cover will block the top opening of the support seat, and lock the manhole cover and the support seat with bolts.

[0015] The advantages and positive effects of the assembled inspection wellhead reinforcement device and reinforcement method described in the present invention are: 1. The reinforcement device is a split structure of a connecting seat and a supporting seat. On the one hand, it is convenient for transportation. On the other hand, the supporting seats of different heights can be replaced according to the height of the road surface, thereby improving the adaptability of the reinforcement device.

[0016] 2. The connecting seat and the supporting seat are connected by a locking mechanism. The setting of the locking mechanism structure facilitates the installation and disassembly between the connecting seat and the supporting seat, and the connection is stable.

[0017] 3. The card slots arranged on the inner wall of the support seat facilitate the installation of the protective mechanism, and the protective mechanism is not easy to fall off under the support of the annular groove, thereby improving safety and protective effect.

[0018] 4. The protective mechanism includes a support rod and a transmission seat. The horizontal sliding of the support rod is achieved by rotating the screw rod, which makes it easy to insert the support rod into the inner wall of the support seat. The protective mechanism is very convenient to install and disassemble.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a cross-sectional structure of an embodiment of the present invention; Figure 2 For attachment Figure 1 Middle A enlarged view; Figure 3 This is a schematic diagram of the structure of a connecting socket according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the top view of the connecting seat according to an embodiment of the present invention; Figure 5 A schematic diagram of the support base structure of an embodiment of the present invention; Figure 6 This is a schematic diagram of the top view of the support base according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of a support base according to an embodiment of the present invention; Figure 8 A schematic diagram of a protection mechanism according to an embodiment of the present invention; Fig. 9 Schematic diagram of the cross-sectional structure of the protection mechanism according to an embodiment of the present invention.

[0021] Reference numerals 1. Well body; 2. Connecting seat; 3. Clamping seat; 4. Support seat; 5. Lower fixing plate; 6. Upper fixing plate; 7. Well cover; 8. Slide groove; 9. Clamping hole; 10. Locking hole; 11. Fixing seat; 12. First mounting groove; 13. Sliding block; 14. First spring; 15. Transmission hole; 16. Locking pin; 17. Press rod; 18. Second spring; 19. Connecting plate; 20. Clamping block; 21. Locking column; 22. Locking hole; 23. Groove; 24. Connecting hole; 25. Slot; 26. Annular groove; 27. Limiting hole; 28. Center seat; 29. ​​Second mounting groove; 30. Support rod; 31. Transmission seat; 32. Screw; 33. Turning handle; 34. Limiting plate; 35. Third mounting groove; 36. Upper supporting plate; 37. Lower supporting plate; 38. Positioning plate; 39. Third spring. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example like Figure 1 As shown, an assembled inspection well mouth reinforcement device includes a connection seat 2 arranged above the well body 1, and the bottom of the connection seat 2 is fixedly connected to the well body 1. A clamping seat 3 is fixedly arranged on the lower surface of the connection seat 2, and the clamping seat 3 and the connection seat 2 are coaxial integral structures. The clamping seat 3 is an annular structure with a U-shaped cross section, and the clamping seat 3 is clamped outside the top of the well body 1. The clamping seat 3 protects the top of the well body 1.

[0025] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown. A support seat 4 is arranged above the connecting seat 2, and the connecting seat 2 and the support seat 4 are connected by a locking mechanism. The reinforcement device is a split structure of the connecting seat 2 and the support seat 4, which is convenient for transportation on the one hand, and can replace the support seat 4 of different heights according to the height of the road surface on the other hand, thereby improving the adaptability of the reinforcement device. The locking mechanism includes a lower fixed plate 5, which is fixedly arranged at the lower part of the support seat 4. The bottom of the support seat 4 is inserted into the interior of the connecting seat 2 to improve the stability of the connection between the support seat 4 and the connecting seat 2. Several blocks 20 are evenly arranged on the lower fixed plate 5, and there are four blocks 20 in this embodiment. A locking column 21 is arranged below the block 20, and the block 20 is coaxially arranged with the locking column 21. The diameter of the block 20 is larger than the diameter of the locking column 21. An annular slide groove 8 is arranged on the upper surface of the connecting seat 2, and the locking column 21 is located in the slide groove 8 and is slidably connected to the slide groove 8. The width of the slide groove 8 is slightly larger than the diameter of the locking column 21. The slide groove 8 is provided with a clamping hole 9 corresponding to the clamping block 20, and the clamping block 20 is inserted into the clamping hole 9. A locking hole 10 is provided at the bottom of the clamping hole 9, and the aperture of the clamping hole 9 is larger than the aperture of the locking hole 10 and the width of the slide groove 8. The locking column 21 is inserted into the locking hole 10. The locking column 21 slides into the locking hole 10 through the slide groove 8, and the clamping block 20 is inserted into the clamping hole 9, so as to realize the connection between the connecting seat 2 and the supporting seat 4.

[0026] A locking structure for locking the lock column 21 is provided in the lock hole 10. The locking structure includes a locking pin 16, which is slidably arranged in the first mounting groove 12. The first mounting groove 12 is arranged in the fixing seat 11, and the fixing seat 11 is fixedly arranged on the side wall of the connecting seat 2. The first mounting groove 12 is communicated with the lock hole 10, and a locking hole 22 for inserting the locking pin 16 is provided on the lock column 21. A first spring 14 is provided between the locking pin 16 and the first mounting groove 12, and the locking pin 16 is inserted into the locking hole 22 under the action of the first spring 14. An inclined surface is provided on the upper part of one end of the locking pin 16 extending out of the first mounting groove 12 to facilitate the insertion of the lock column 21 into the lock hole 10.

[0027] The fixed seat 11 is provided with a sliding structure for driving the locking pin 16 to slide in the first mounting groove 12. The sliding structure includes a slider 13, which is fixedly arranged at one end of the locking pin 16. The slider 13 is located in the first mounting groove 12 and is slidably connected to the first mounting groove 12. The first mounting groove 12 is a stepped groove, which provides stability for the sliding of the slider 13 and the locking pin 16. The first spring 14 is arranged between the slider 13 and the end of the first mounting groove 12, and the two ends of the first spring 14 are respectively fixedly connected to the slider 13 and the first mounting groove 12. A transmission hole 15 that passes through the sliding hole is arranged in the middle of the slider 13, and an inclined surface that gradually tilts inward from top to bottom is arranged at one end of the transmission hole 15 away from the locking pin 16. A pressure rod 17 is arranged inside the transmission hole 15, and a through hole for the pressure rod 17 to pass through is arranged on the fixed seat 11, and the through hole is connected to the first mounting groove 12. The pressure rod 17 is slidably connected to the fixed seat 11. A connecting plate 19 is fixedly arranged at one end of the pressure rod 17 extending out of the fixing seat 11, and the pressure rods 17 are fixedly connected together through the connecting plate 19. A second spring 18 is arranged between the connecting plate 19 and the fixing seat 11, and the two ends of the second spring 18 are respectively fixedly connected to the connecting plate 19 and the fixing seat 11. Under the action of the second spring 18, the pressure rod 17 contacts the inclined surface of the transmission hole 15.

[0028] A manhole cover 7 is hinged on the top of the connecting seat 2. An upper fixing plate 6 is coaxially fixedly arranged on the top of the supporting seat 4, and a groove 23 for placing the manhole cover 7 is arranged on the upper fixing plate 6. An installation groove is arranged on the groove 23, and a rotating shaft is arranged in the installation groove, and the manhole cover 7 is rotatably connected to the supporting seat 4 through the rotating shaft. A plurality of connecting holes 24 are evenly arranged on the groove 23, and the manhole cover 7 is fixedly connected to the supporting seat 4 through bolts and the connecting holes 24.

[0029] like Figure 8 , Fig. 9 As shown. A protective mechanism is arranged inside the connecting seat 2. The protective mechanism includes a central seat 28, and a plurality of second mounting grooves 29 are evenly arranged in a circumferential array inside the central seat 28, and a support rod 30 is slidably arranged in the second mounting groove 29. In this embodiment, there are six second mounting grooves 29. A power structure is arranged inside the central seat 28 to drive the support rod 30 to slide in the second mounting groove 29.

[0030] The power structure includes a conical transmission seat 31, a third mounting groove 35 is provided at the center of the center seat 28, and the transmission seat 31 is slidably provided in the third mounting groove 35. A positioning plate 38 is fixedly provided on the support rod 30, and a third spring 39 is provided between the positioning plate 38 and the center seat 28. The third spring 39 is sleeved on the outside of the support rod 30, and the two ends of the third spring 39 are respectively fixedly connected with the positioning plate 38 and the center seat 28. Under the action of the third spring 39, the end of the support rod 30 contacts the side wall of the transmission seat 31. A screw rod 32 is fixedly provided on the transmission seat 31, and a turning handle 33 for driving the screw rod 32 to rotate is fixedly provided at the top of the screw rod 32. A limit plate 34 is fixedly provided at the bottom end of the screw rod 32. An upper support plate 36 is fixedly provided on the top of the center seat 28, and a lower support plate 37 is fixedly provided at the bottom of the center seat 28. The screw rod 32 is threadedly connected with the upper support plate 36 and the lower support plate 37. Rotate the screw 32, and the screw 32 moves up and down through the thread transmission. The screw 32 drives the transmission seat 31 to rotate and move up and down. The transmission seat 31 pushes the support rod 30 to slide horizontally through the inclined surface, thereby fixing the support rod 30 on the inner wall of the support seat 4, which is convenient for installation and disassembly.

[0031] The inner wall of the support seat 4 is provided with a slot for inserting the support rod 30 and clamping the support rod 30 on the support seat 4. The slots are arranged one by one with the support rods 30. The slots include a horizontally arranged annular groove 26, one end of which is provided with a vertical slot 25, and the top of the slot 25 is located in the groove 23. The other end of the annular groove 26 is provided with a horizontal limiting hole 27, and the end of the support rod 30 is inserted into the limiting hole 27. The provision of the slot facilitates the insertion of the support rod 30 into the inner wall of the support seat 4 and the clamping into the limiting hole 27. On the one hand, it is convenient for the installation of the protective mechanism, and on the other hand, the protective mechanism is not easy to fall under the support of the annular groove 26, thereby improving safety.

[0032] The connecting seat 2 and the supporting seat 4 can be made of steel, which is easy to manufacture.

[0033] The reinforcement method based on the above-mentioned assembled inspection wellhead reinforcement device comprises the following steps: S1. Place the connecting seat 2 above the well body 1, clamp the clamping seat 3 on the outside of the well body 1, and fix the well body 1 and the clamping seat 3 with bolts.

[0034] S2. Place the support seat 4 above the connecting seat 2, the locking column 21 at the bottom of the support seat 4 is located in the slide groove 8, rotate the support seat 4, the support seat 4 drives the locking column 21 to slide in the slide groove 8, the locking column 21 slides into the locking hole 10 through the clamping hole 9 along the slide groove 8, and the clamping block 20 is inserted into the clamping hole 9; the bottom of the locking column 21 pushes the locking pin 16 outward, the first spring 14 is compressed, and after the locking column 21 is inserted into the locking hole 10, the locking pin 16 is inserted into the locking hole 22 under the action of the first spring 14, so as to realize the locking connection between the support seat 4 and the connecting seat 2. When disassembling, press the connecting plate 19 downward, the second spring 18 is compressed, the connecting plate 19 drives the pressure rod 17 to move downward, the pressure rod 17 pushes the slider 13 to slide outward through the inclined surface, the first spring 14 is compressed, the slider 13 drives the locking pin 16 to be pulled out from the locking hole 22, and the support seat 4 is lifted upward to realize the disassembly between the support seat 4 and the connecting seat 2.

[0035] S3. Insert the support rods 30 into the slots 25 one by one, push the center seat 28 downward, and the center seat 28 drives the support rods 30 to move downward synchronously. After the support rods 30 slide to the bottom of the slots 25, rotate the center seat 28, and the center seat 28 drives the support rods 30 to slide along the annular groove 26. After the support rods 30 slide to the end of the annular groove 26, turn the screw 32 by turning the handle 33, and the screw 32 drives the transmission seat 31 to move downward through the threaded transmission. The transmission seat 31 pushes the support rods 30 to slide outward through the inclined surface, and the support rods 30 are inserted into the limiting holes 27, and the support rods 30 are locked with the support seat 4.

[0036] S4. Install the manhole cover 7 in the groove 23 of the support seat 4, rotate the manhole cover 7, the manhole cover 7 blocks the top opening of the support seat 4, and lock the manhole cover 7 and the support seat 4 with bolts.

[0037] Therefore, the use of the assembled inspection well mouth reinforcement device and reinforcement method described in the present invention can solve the problem of inconvenient installation and use of existing reinforcement devices.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An assembled inspection wellhead reinforcement device, characterized in that: It includes a connecting seat arranged above the well body, the bottom of the connecting seat is fixedly connected to the well body, a supporting seat is arranged above the connecting seat, the connecting seat and the supporting seat are connected by a locking mechanism, the top of the connecting seat is hinged with a well cover, and a protective mechanism is arranged inside the connecting seat; the locking mechanism includes a lower fixed plate, the lower fixed plate is arranged at the lower part of the support seat, a number of clamping blocks are evenly arranged on the lower fixed plate, a locking column is arranged below the clamping block, the clamping block and the locking column are coaxially arranged, an annular sliding groove is arranged on the upper surface of the connecting seat, the locking column is located in the sliding groove and is slidably connected to the sliding groove, a clamping hole corresponding to the clamping block is arranged on the sliding groove, a locking hole is arranged at the bottom of the clamping hole, the aperture of the clamping hole is larger than the aperture of the locking hole and the width of the sliding groove, the locking column is inserted in the locking hole, and a locking structure for locking the lock column is arranged in the lock hole.

2. The assembled inspection wellhead reinforcement device according to claim 1 is characterized in that: A clamping seat is arranged on the lower surface of the connecting seat. The clamping seat is a ring structure with a U-shaped cross section. The clamping seat is clamped outside the top end of the well body.

3. The assembled inspection wellhead reinforcement device according to claim 2 is characterized in that: The locking structure includes a locking pin, which is slidably arranged in a first mounting groove, which is arranged in a fixed seat, which is fixedly arranged on the side wall of the connecting seat, the first mounting groove is connected to the locking hole, a locking hole for inserting the locking pin is arranged on the locking column, a first spring is arranged between the locking pin and the first mounting groove, and the locking pin is inserted into the locking hole under the action of the first spring; a sliding structure is arranged on the fixed seat to drive the locking pin to slide in the first mounting groove.

4. The assembled inspection wellhead reinforcement device according to claim 3 is characterized in that: The sliding structure includes a slider, which is arranged at one end of the locking pin, the slider is located in the first mounting groove and is slidably connected to the first mounting groove, the first spring is arranged between the slider and the end of the first mounting groove, a transmission hole is arranged in the middle of the slider, and a slope gradually inclined inward from top to bottom is arranged at the end of the transmission hole away from the locking pin, a pressure rod is arranged inside the transmission hole, a through hole for the pressure rod to pass through is arranged on the fixed seat, the through hole is communicated with the first mounting groove, the pressure rod is slidably connected to the fixed seat, a connecting plate is arranged at the end of the pressure rod extending out of the fixed seat, a second spring is arranged between the connecting plate and the fixed seat, and the pressure rod contacts the inclined surface of the transmission hole under the action of the second spring.

5. The assembled inspection wellhead reinforcement device according to claim 4 is characterized in that: The first installation groove is a stepped groove, and an upper portion of one end of the locking pin extending out of the first installation groove is provided with an inclined surface for facilitating the insertion of the lock column into the lock hole.

6. The assembled inspection wellhead reinforcement device according to claim 5 is characterized in that: An upper fixing plate is provided on the top of the support seat, a groove for placing the manhole cover is provided on the upper fixing plate, an installation groove is provided on the groove, a rotating shaft is provided in the installation groove, the manhole cover is rotatably connected to the support seat through the rotating shaft, a plurality of connecting holes are evenly provided on the groove, and the manhole cover is fixedly connected to the support seat through bolts and the connecting holes.

7. The assembled inspection wellhead reinforcement device according to claim 6 is characterized in that: The protection mechanism includes a center seat, a plurality of second installation grooves are evenly arranged in a circular array inside the center seat, a support rod is slidably arranged in the second installation groove, a power structure is arranged inside the center seat to drive the support rod to slide in the second installation groove, and a clamping groove is arranged on the inner wall of the support seat for inserting the support rod and clamping the support rod on the support seat.

8. The assembled inspection wellhead reinforcement device according to claim 7 is characterized in that: The power structure includes a conical transmission seat, a third mounting groove is arranged at the center of the center seat, the transmission seat is slidably arranged in the third mounting groove, a positioning plate is arranged on the support rod, a third spring is arranged between the positioning plate and the center seat, the end of the support rod contacts the side wall of the transmission seat under the action of the third spring, a screw rod is arranged on the transmission seat, a turning handle for driving the screw rod to rotate is arranged at the top of the screw rod, a limiting plate is arranged at the bottom end of the screw rod, and the screw rod is threadedly connected with an upper supporting plate arranged at the top of the center seat and a lower supporting plate arranged at the bottom of the center seat.

9. The assembled inspection wellhead reinforcement device according to claim 8, characterized in that: The card slot includes a horizontally arranged annular groove, which corresponds to the support rod one by one. A vertical slot is arranged at one end of the annular groove, and the top of the slot is located in the groove. A horizontal limiting hole is arranged at the other end of the annular groove, and the end of the support rod is inserted into the limiting hole.

10. A reinforcement method for a prefabricated inspection wellhead reinforcement device according to claim 9, characterized in that: The following steps are involved: S1. Place the connection seat above the well body, clamp the clamp seat on the outside of the well body, and fix the well body and the clamp seat with bolts; S2. Place the support seat above the connecting seat, the locking column at the bottom of the support seat is located in the slide groove, rotate the support seat, the support seat drives the locking column to slide in the slide groove, the locking column slides into the lock hole through the card hole along the slide groove, the card block is inserted into the card hole, the bottom of the lock column pushes the locking pin outward, the first spring is compressed, after the lock column is inserted into the lock hole, the locking pin is inserted into the locking hole under the action of the first spring; S3. Insert the support rods into the slots one by one, push the center seat downward, the center seat drives the support rods to move downward synchronously, after the support rods slide to the bottom of the slots, rotate the center seat, the center seat drives the support rods to slide along the annular groove, after the support rods slide to the end of the annular groove, turn the screw by turning the handle, the screw drives the transmission seat downward through the threaded transmission, the transmission seat pushes the support rods to slide outward through the inclined surface, the support rods are inserted into the limiting holes, and the support rods are locked with the support seat; S4. Install the manhole cover in the groove of the support seat, rotate the manhole cover, the manhole cover will block the top opening of the support seat, and lock the manhole cover and the support seat with bolts.

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