An assembled prefabricated cable inspection well

Abstract

The application discloses an assembled prefabricated cable inspection well and belongs to the technical field of cable inspection well installation. The well body is prefabricated and can be assembled in the vertical direction. An adjusting mechanism is arranged in the lower well body among two well bodies assembled in the vertical direction. The adjusting mechanism is detachably connected with the well body. The position of the installed well body can be adjusted through the multiple supporting rods, so that the upper and lower well bodies can be aligned. The cooperation between the positioning wheel and the inner wall of the well body can promote the dislocation between the top block and the pressing rod, so that the plug has the condition of returning to the original position. During the upward movement of the plug along with the adjusting mechanism, the plug can be clamped in the uppermost well body, which is beneficial to the butt joint of multiple well bodies in the vertical direction.

Description

Technical Field

[0001] This invention relates to the field of cable inspection well installation technology, and in particular to a prefabricated cable inspection well. Background Technology

[0002] Inspection wells are installed to facilitate the maintenance and installation of underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, and street light lines in cities. They are generally installed at pipe junctions, bends, changes in pipe diameter, changes in slope, and at regular intervals on straight pipe sections.

[0003] Chinese invention patent CN119615970B discloses a prefabricated assembled inspection well with a corbel structure, including an upper chamber and a lower chamber, with an adjustable base installed below the lower chamber; the lower chamber has a lower semi-circular through groove, and the upper chamber has an upper semi-circular through groove; corbel-structure jacking mechanisms are detachably installed on the inner side of the upper chamber and the outer side of the lower chamber, and the two corbel-structure jacking mechanisms are symmetrically arranged, which facilitates construction and assembly, and the corbel-structure jacking mechanism improves the service life of the inspection well.

[0004] The above-mentioned device assembles the upper and lower well bodies by using the cooperation of the docking protrusion and the docking groove. However, in actual use, the well bodies are generally assembled by hoisting. When the well body located above swings, it will be difficult to align the docking protrusion and the docking groove. Therefore, the above-mentioned device still has room for improvement.

[0005] Therefore, it is necessary to provide a prefabricated cable inspection well to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a prefabricated cable inspection well to solve the problem mentioned in the background art that the existing device assembles the upper and lower well bodies by the cooperation of the docking protrusion and the docking groove. However, in actual use, the well body is generally assembled by hoisting, which makes it difficult to align the docking protrusion and the docking groove.

[0007] Based on the above ideas, the present invention provides the following technical solution: a prefabricated cable inspection well, including a well body, the well body being prefabricated and capable of being assembled in the vertical direction, wherein in the two well bodies assembled with each other in the vertical direction, an adjustment mechanism is provided inside the lower well body, the adjustment mechanism being detachably connected to the well body, and a partition plate cooperating with the adjustment mechanism is provided inside the lower well body, the partition plate being capable of moving upward relative to the well body;

[0008] When the two well bodies are assembled in the vertical direction, the bottom end of the adjustment mechanism can contact the partition and open as the upper well body falls, so that the upper and lower well bodies can be aligned in the vertical direction. When the upper and lower well bodies are aligned, the adjustment mechanism and the partition are inserted into each other.

[0009] As a further aspect of the present invention: the adjustment mechanism includes a rotating block and a plurality of support rods hinged to the bottom of the rotating block. The plurality of support rods are arranged in a circular array relative to the rotating block, and the support rods are elastically engaged with the rotating block. A positioning wheel is rotatably mounted on the end of the support rod away from the rotating block, and an insertion rod that engages with the partition is provided at the axis of the rotating block.

[0010] As a further aspect of the present invention: the inner wall of the well body is recessed inward near the top to form a placement groove, the bottom of the placement groove is a support part, and a limiting part is formed in the placement groove above the support part. The depth of the limiting part is less than the depth of the support part. Insert plates are elastically connected to both sides of the bottom surface of the partition. Initially, one end of the insert plate is located between the support part and the limiting part.

[0011] As a further aspect of the present invention: a plurality of baffles cooperating with the support rods are fixedly installed on the top of the partition plate; a guide frame is elastically connected to one side of the baffle plate; a connecting rod is elastically arranged on the guide frame along the vertical direction; a top block is fixedly arranged at one end of the connecting rod that passes downward through the partition plate; two guide grooves distributed in a figure-eight pattern are opened on the insert plate; two pressure rods are slidably connected to the bottom of the partition plate; the bottom end of the pressure rod passes downward through the guide groove; both sides of the top block near the pressure rod are set as inclined surfaces; a gear is arranged on one side of the positioning wheel; the gear rotates synchronously with the positioning wheel; and a rack that meshes with the gear is fixedly embedded on the inner side of the connecting rod.

[0012] As a further embodiment of the present invention: a fixed block is provided on the top of the rotating block, the insertion rod is fixedly installed on the bottom surface of the fixed block, the insertion rod passes downward through the rotating block and the insertion rod and the rotating block are elastically engaged by a torsion unit, a rotating shaft is fixedly provided at one end of the support rod near the rotating block, a strip groove is provided on the outer peripheral wall of the insertion rod, an anti-rotation strip is fixedly provided on the rotating shaft, and the end of the anti-rotation strip away from the rotating shaft is inserted into the strip groove.

[0013] As a further embodiment of the present invention: two pin sleeves are fixedly provided on the outer peripheral wall of the fixing block, and a pin is elastically connected inside the pin sleeve; a pull rod is elastically connected at the top of the fixing block; a traction rope is fixedly provided between the pull rod and the pin; and a round hole that cooperates with the pin is opened on the inner wall of the well body near the bottom.

[0014] As a further aspect of the present invention: the inner wall of the placement groove and the position above the limiting part is set as a connecting part, so that the placement groove can transition to the inner wall of the well body.

[0015] As a further aspect of the present invention: a through hole is provided on the well wall of the well body.

[0016] As a further aspect of the present invention: a connecting lug is fixedly installed on the outer wall of the well body near the top.

[0017] As a further aspect of the present invention: the top end face of the well body is formed with a downwardly recessed annular groove, and the bottom end face of the well body extends downward to form an annular protrusion that matches the annular groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the position of the installed well body can be adjusted by setting multiple support rods, so that the upper and lower well bodies can be aligned. Furthermore, the cooperation between the positioning wheel and the inner wall of the well body can cause the top block and the pressure rod to be misaligned, so that the insert plate has the condition to be reset. As the insert plate moves upward with the adjustment mechanism, it can be locked into the uppermost well body. Therefore, this structure enables multiple well bodies to be connected in the vertical direction. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram showing the position of the adjustment mechanism of the present invention within the well body;

[0022] Figure 3 This is a schematic diagram showing the position of the baffle of the present invention within the well body;

[0023] Figure 4 This is a schematic diagram of the adjustment mechanism and the partition plate of the present invention.

[0024] Figure 5 This is a schematic diagram of the insert connection structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the connection structure between the connecting rod and the guide frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the anti-spin strip and the groove of the present invention;

[0027] Figure 8 This is a cross-sectional view of the present invention;

[0028] Figure 9 This is the present invention. Figure 8 A magnified structural diagram at point A;

[0029] Figure 10This is a schematic diagram of the placement slot structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the pin sleeve and latch structure of the present invention;

[0031] Figure 12 This is a schematic diagram of the connection between the pressure rod and the partition plate of the present invention;

[0032] Figure 13 This is a schematic diagram of the annular groove structure of the present invention.

[0033] In the diagram: 1. Well body; 101. Placement slot; 1011. Support part; 1012. Limiting part; 1013. Connecting part; 102. Annular protrusion; 103. Annular groove; 104. Circular hole; 105. Flange; 2. Base; 3. Gear; 4. Positioning wheel; 5. Support rod; 501. Top rod; 6. Baffle; 7. Partition plate; 8. Rotating block; 9. Fixing block; 10. Pin sleeve; 1001. Pin; 11. 11. Rack; 12. Guide frame; 1201. Slider; 13. Insert rod; 1301. Strip groove; 14. Protrusion; 15. Insert plate; 1501. Guide groove; 16. Pressure rod; 17. Top block; 1701. Inclined surface; 18. Guide post; 19. Fixed post; 20. Connecting rod; 21. Side plate; 22. Sleeve; 23. Rotating shaft; 2301. Anti-rotation strip; 24. Pull rod; 25. Traction rope; 26. Locking strip. Detailed Implementation

[0034] like Figures 1-13 As shown, a prefabricated cable inspection well includes a well body 1. Specifically, the well body 1 is prefabricated and can be assembled in the vertical direction, combined with... Figure 1 As shown, the base 2 can be fixedly installed at the bottom of the well body 1, which facilitates the installation of the well body 1.

[0035] In actual use, due to the large weight of the well body 1, it is generally assembled by hoisting. In this solution, an adjustment mechanism is set at the center of one of the well bodies 1 and near the bottom. The adjustment mechanism is detachably connected to the well body 1. The adjacent well body 1 located below it is equipped with a partition 7 that cooperates with the adjustment mechanism. The partition 7 is coaxial with the well body 1 and there is a small gap between the outer circumferential surface of the partition 7 and the inner wall of the well body 1. Specifically, when two adjacent well bodies 1 are assembled in the vertical direction, the bottom end of the adjustment mechanism can contact the partition 7 and open as the upper well body 1 falls, which helps the upper and lower well bodies 1 to maintain a coaxial state.

[0036] The adjustment mechanism includes a rotating block 8 and multiple support rods 5 hinged to the bottom of the rotating block 8. The support rods 5 are arranged in a circular array relative to the rotating block 8 and are elastically engaged with the rotating block 8. A positioning wheel 4 is rotatably mounted on the end of the support rod 5 away from the rotating block 8. During the process of the upper well body 1 falling to the lower well body 1, the positioning wheel 4 can contact the partition 7 and open outward. When the positioning wheel 4 on one of the support rods 5 contacts the lower well wall first, it remains stable. At this time, as the upper well body 1 continues to descend, the position of the upper well body 1 can be adjusted by the support rods 5. Finally, when the positioning wheels 4 on multiple support rods 5 are all in contact with the lower well wall, the upper and lower well bodies 1 can form a coaxial state, which is conducive to the vertical assembly of the two well bodies 1. After that, the adjustment mechanism located in the upper well body 1 can be lifted away.

[0037] In actual use, if the partition 7 is left inside the well body 1, it will affect the installation of subsequent cables (or water pipes, etc.) and later maintenance. Therefore, in this solution, the partition 7 is set to be detachably connected to the well body 1. When the adjustment mechanism is placed on the partition 7 and the two upper and lower well bodies 1 are coaxial, the adjustment mechanism can be inserted into the partition 7, so that the partition 7 can be taken away simultaneously when the adjustment mechanism is lifted away from the well body 1.

[0038] like Figures 1-10 As shown, in order to achieve a detachable connection between the partition 7 and the well body 1, a placement groove 101 is formed by recessing inward at the position near the top of the inner wall of the well body 1. The bottom of the placement groove 101 is a support part 1011. Insert plates 15 are elastically connected to both sides of the bottom surface of the partition 7. Initially, the insert plates 15 are in a popped-out state and fall on the support part 1011, so that the partition 7 can remain stable relative to the well body 1.

[0039] A rod 13 is located below the rotating block 8. At least one protrusion 14 is elastically connected to the outer peripheral wall of the rod 13. A insertion hole for the rod 13 is located at the center of the partition 7. (Refer to...) Figure 4 , Figure 11 As shown, the end of the protrusion 14 located outside the insertion rod 13 can be a spherical structure. When the positioning wheels 4 on the multiple support rods 5 are in contact with the inner wall of the lower well body 1, the protrusion 14 can pass through the insertion hole with the insertion rod 13. Specifically, the protrusion 14 can pop out after passing through the insertion hole, so that the insertion rod 13 can drive the partition 7 away from the well body 1.

[0040] In this scheme, the number of support rods 5 is set to two sets. However, in actual application, in order to improve the positioning accuracy, the number of support rods 5 can be set to three or more sets and evenly distributed in a ring array, which is beneficial for positioning the falling well body in multiple directions.

[0041] While the above structure can keep the upper and lower well bodies 1 aligned, when the number of well bodies 1 to be assembled increases, the partition 7 needs to be engaged with the uppermost well body 1 as it rises with the adjusting mechanism. This ensures that the next well body 1 to be assembled can dock with the already assembled uppermost well body 1. Based on this:

[0042] In this design, multiple baffles 6 are fixedly installed on the top of the partition 7. These baffles 6 are evenly distributed in a circular array and correspond one-to-one with each of the support rods 5. Figure 4 As shown, a guide frame 12 is elastically connected to one side of the baffle 6. The guide frame 12 can move along the length of the baffle 6, and a connecting rod 20 is elastically connected to the guide frame 12. The guide frame 12 can slide vertically relative to the connecting rod 20. Figures 3-10 As shown, both the partition plate 7 and the insert plate 15 have through slots for the connecting rod 20 to pass through. The connecting rod 20 can move horizontally within the through slots, and a top block 17 is fixedly installed at the end of the connecting rod 20 that passes downward through the partition plate 7. Figure 5 As can be seen, the insert plate 15 has two guide grooves 1501, which penetrate the insert plate 15 and are inclined outward so that the two guide grooves 1501 are distributed in a figure-eight shape. At the bottom of the partition plate 7 and at the position of the insert plate 15, two pressure rods 16 are slidably connected. The pressure rods 16 are slidably engaged with the partition plate 7. Specifically, the bottom end of the pressure rod 16 passes downward through the guide groove 1501 and the pressure rod 16 can slide relative to the insert plate 15 along its width direction. The top block 17 is provided with inclined surfaces 1701 on both sides near the pressure rod 16. In actual use, when the guide frame 12 drives the connecting rod 20 to move outward along the baffle 6, the inclined surfaces 1701 on the top block 17 can squeeze the pressure rod 16, so that the two pressure rods 16 can separate relative to each other. In this process, the cooperation between the pressure rod 16 and the guide groove 1501 can drive the insert plate 15 to move away from the well wall but not completely separate from the support part 1011.

[0043] from Figures 9-10 As can be seen, a limiting part 1012 is formed in the placement groove 101 above the support part 1011. The depth of the limiting part 1012 is less than the depth of the support part 1011. When the pressure rod 16 and the guide groove 1501 can drive the insert plate 15 to move away from the well wall, the insert plate 15 can be misaligned with the limiting part 1012, so that the partition plate 7 can move upward with the adjustment mechanism.

[0044] Furthermore, a gear 3 is provided on one side of the positioning wheel 4, and the gear 3 can rotate synchronously with the positioning wheel 4. A rack 11 that meshes with the gear 3 is fixedly embedded on the inner side of the connecting rod 20. However, in actual use, when the adjustment mechanism enters the lower well body 1, the gear 3 may not be able to be on the same straight line as the rack 11. Based on this, a fixing block 9 is provided on the top of the rotating block 8, and the aforementioned insert rod 13 is fixedly installed on the bottom surface of the fixing block 9. The insert rod 13 passes downward through the rotating block 8 and rotates with it. A torsion unit (torsion spring or coil spring, etc.) is sleeved on the outside of the insert rod 13. The two ends of the torsion unit are connected to the insert rod 13 and the rotating block 8, respectively.

[0045] A rotating shaft 23 is fixedly installed at one end of the support rod 5 near the rotating block 8, and the support rod 5 is hinged to the bottom of the rotating block 8 through the rotating shaft 23. A strip groove 1301 is opened on the outer peripheral wall of the insertion rod 13, and the strip groove 1301 is arranged along the axis of the insertion rod 13. An anti-rotation strip 2301 is fixedly installed on the rotating shaft 23. The end of the anti-rotation strip 2301 away from the rotating shaft 23 is inserted into the strip groove 1301. When the positioning wheel 4 at the end of the insertion rod 13 contacts the partition plate 7, causing multiple support rods 5 to open outward, the end of the anti-rotation strip 2301 away from the rotating shaft 23 can move out of the strip groove 1301, thereby driving the rotating block 8 and the support rod 5 to rotate under the action of the torsion unit. When the gear 3 at the end of the support rod 5 rotates to the side of the baffle 6, it can be stopped. At this point, the gear 3 at the end of the support rod 5 can be on the side of the rack 11. Afterward, as the support rod 5 opens, the gear 3 can contact the rack 11.

[0046] Working principle: When two well bodies 1 are assembled vertically, multiple support rods 5 and multiple baffles 6 are spaced apart. When the adjusting mechanism in the upper well body 1 contacts the baffle 7 in the lower well body 1, the support rods 5 can open outward as the upper well body 1 falls. During this process, the support rods 5 can drive the anti-rotation strip 2301 to rotate, causing one end to move out of the slot 1301. This allows the rotating block 8 to rotate relative to the fixed block 9 under the force of the torsion unit. When the gear 3 at the end of the support rod 5 rotates to one side of the baffle 6, it is stopped. (Refer to...) Figure 4As shown, when gear 3 is located on one side of baffle 6, it can be on the same straight line as rack 11. Therefore, when the upper well body 1 continues to fall, support rod 5 can drive gear 3 to move outward along baffle 6 and fit against rack 11, thereby pushing guide frame 12 and connecting rod 20 to move outward along baffle 6. During this process, connecting rod 20 can drive top block 17 to approach pressure rod 16. The inclined surface 1701 on top block 17 can squeeze pressure rod 16, so that the two pressure rods 16 can move away from each other. And through pressure rod 16 and guide groove 15 The cooperation of 01 can drive the insert plate 15 to move away from the well wall. Specifically, when the positioning wheel 4 on one of the support rods 5 contacts the inner wall of the lower well body 1, it remains stable, so that the position of the falling well body 1 can be adjusted. When the positioning wheels 4 on the other support rods 5 also contact the inner wall of the lower well body 1, the upper and lower well bodies 1 can be aligned. At this time, the top block 17 also drives the pressure rod 16 to move outward to the limit position, while the end of the insert plate 15 near the well wall is offset from the limiting part 1012 but is still on the support part 1011.

[0047] After all the positioning wheels 4 have contacted the inner wall of the lower well body 1, the protrusion 14 on the insertion rod 13 will also pass through the insertion hole on the partition plate 7 and be in a pop-out state. Later, when the adjustment mechanism is lifted off, the partition plate 7 can be moved upward by the cooperation of the insertion rod 13 and the partition plate 7. Since the positioning wheels 4 are in close contact with the inner wall of the well body 1, the friction between the positioning wheels 4 and the well wall can drive the positioning wheels 4 to move upward during the upward movement of the partition plate 7. Figure 4 The direction R in the middle rotates counterclockwise, thereby driving gear 3 to rotate counterclockwise. Gear 3, through meshing with rack 11, can drive connecting rod 20 to move downwards. Figure 5 As can be seen, during the downward movement of the connecting rod 20, it can drive the top block 17 to move downward and eventually separate from the pressure rod 16, thereby enabling the insert plate 15 to have the conditions for reset. Specifically, when the adjusting mechanism drives the partition plate 7 to move into the uppermost well body 1 and is located in the placement slot 101, the insert plate 15 can pop out and insert between the support part 1011 and the limiting part 1012 to limit the partition plate 7, so that the partition plate 7 can be locked in the uppermost well body 1.

[0048] Subsequently, as the adjustment mechanism continues to be lifted upwards, the protrusion 14 can be compressed into the insertion hole and eventually cause the insertion rod 13 to disengage from the partition 7. During the process of the adjustment mechanism leaving the partition 7, the support rod 5 can gradually retract and approach, while the guide frame 12 and the connecting rod 20 will also return to their initial state for the next use.

[0049] In summary, the device can adjust the position of the installed well body 1 through multiple support rods 5 provided, so that the upper and lower well bodies 1 can be aligned. Moreover, the cooperation between the positioning wheel 4 and the inner wall of the well body 1 can cause the top block 17 and the pressure rod 16 to错开, so that the insertion plate 15 has the condition of resetting. When the insertion plate 15 moves upward with the adjustment mechanism, it can be clamped in the uppermost well body 1. Therefore, this structure enables multiple well bodies 1 to be docked in the vertical direction.

[0050] As Figures 1-3 shown, a connecting ear plate is fixedly installed at a position near the top of the outer wall of the well body 1, so that the well body 1 can be hoisted by the cooperation of the hook and the connecting ear plate. A through hole is also opened on the well wall of the well body 1, which is beneficial to the installation of cables or pipelines.

[0051] Referring Figures 4-7 to the figure, the baffle 6 is in the shape of a "return" character, and a slider 1201 with a T-shaped structure is fixedly arranged on the guiding frame 12. The slider 1201 passes through the baffle 6 and is in sliding fit with it. Moreover, convex plates are fixedly arranged at both ends on the side of the baffle 6 facing away from the guiding frame 12. A cross shaft is fixedly installed between the two convex plates, so that the cross shaft passes through the slider 1201 and is in sliding fit with it. A spring is arranged between the slider 1201 and one of the convex plates. Figure 7 It can be seen from this that the spring can be sleeved outside the cross shaft. When the guiding frame 12 moves outward along the baffle 6, the slider 1201 can compress the spring.

[0052] From Figure 4 it can be seen that a connecting shaft is rotatably installed at the end of the support rod 5 far away from the rotating block 8 through a bearing, and the above-mentioned positioning wheel 4 and gear 3 are both fixedly sleeved outside the connecting shaft. In actual use, a top rod 501 can be fixedly installed at the bottom end position of the support rod 5. When the adjustment mechanism enters the lower well body 1, the top rod 501 can contact the partition plate 7, so as to prevent the positioning wheel 4 from contacting the partition plate 7 and make the movement of the support rod 5 more stable.

[0053] Combined with Figure 2 , Figure 4 and Figure 11As shown, two pin sleeves 10 are fixedly installed on the outer peripheral wall of the fixing block 9, and a pin 1001 is elastically connected to the pin sleeve 10 through a limiting spring. The end of the pin 1001 located on the outer side of the pin sleeve 10 is an arc surface or a spherical surface. A "┴"-shaped pull rod 24 is slidably installed at the top of the fixing block 9, and a T-shaped groove is opened near the top of the fixing block 9 to slide with the pull rod 24. A first spring is installed between the top wall of the T-shaped groove and the end face of the pull rod 24. A traction rope 25 is fixedly installed between the pull rod 24 and the pin 1001. The traction rope 25 passes through the fixing block 9 and the pin sleeves 10 and is connected to the pin 1001. The two slide together. A circular hole 104 is provided on the inner wall of the well body 1 near the bottom to cooperate with the pin 1001. Initially, one end of the pin 1001 protruding from the pin sleeve 10 is inserted into the circular hole 104. A through hanging groove is provided on the pull rod 24 along its diameter direction, which facilitates cooperation with the hook. When the adjustment mechanism is lifted away from the well body 1, the pull rod 24 is pulled upward by the hook and the first spring is compressed. During this process, the pull rod 24 can pull the pin 1001 through the traction rope 25 so that one end of the pin 1001 moves out of the circular hole 104, so that the adjustment mechanism can be separated from the well body 1.

[0054] Reference Figure 5 As shown, the insert plate 15 is generally L-shaped. The bottom of the partition plate 7 is fixedly provided with a vertical plate that cooperates with the insert plate 15. A guide post 18 is fixedly provided on the vertical part of the insert plate 15. The guide post 18 passes through the vertical plate and slides with it. A second spring is fixedly provided between the vertical part of the insert plate 15 and the vertical plate. A retaining strip 26 is fixedly provided on both sides of the top surface of the insert plate 15. A retaining sleeve that slides with the retaining strip 26 is fixedly installed on the bottom surface of the partition plate 7. The cross-section of the retaining strip 26 and the retaining sleeve are both T-shaped, which facilitates the stable sliding of the insert plate 15 under the partition plate 7.

[0055] from Figure 6 As can be seen, the connecting rod 20 is generally L-shaped. A fixing post 19 is fixedly installed inside the guide frame 12. The fixing post 19 passes through the horizontal section of the connecting rod 20 and slides with it. A support spring is provided between the horizontal section of the connecting rod 20 and the bottom surface inside the guide frame 12. Figures 6-7 As shown, a side plate 21 is fixedly provided on the slider 1201. The side plate 21 is located inside the baffle 6 and is used to block the connecting shaft.

[0056] from Figure 7 As can be seen, sleeves 22 are fixedly provided on both sides of the bottom of the rotating block 8, and the aforementioned rotating shaft 23 passes through the sleeves 22 and is elastically engaged with the sleeves 22 through a coil spring or a torsion spring. When the two support rods 5 deflect outward relative to the rotating block 8, the coil spring or torsion spring will be compressed by the rotating shaft 23.

[0057] Combination Figures 8-10 As shown, the inner wall of the placement groove 101 is positioned above the limiting part 1012 as an inclined connecting part 1013, so that the placement groove 101 can transition to the inner wall of the well body 1.

[0058] In actual use, flanges 105 can be fixed at the top and bottom of the outer side of the well body 1. The through holes on the flanges 105 can be circular or arc-shaped, which facilitates fixing two adjacent flanges 105 with bolts, thereby further fixing the upper and lower well bodies 1.

[0059] Reference Figures 11-12 As shown, a mounting hole is provided on the periphery of the insertion rod 13 to slide with the protrusion 14. A third spring is fixedly installed between the inner end face of the mounting hole and the protrusion 14. A mounting groove is provided at the bottom of the partition plate 7 to slide with the pressure rod 16. A guide rod is fixed in the mounting groove and passes through the pressure rod 16 and slides with it.

[0060] Reference Figures 1-3 As shown, the top end face of the well body 1 has a downwardly recessed annular groove 103, while the bottom end face of the well body 1 extends downward to form an annular protrusion 102 that cooperates with the annular groove 103. When multiple well bodies 1 are assembled in the vertical direction, the annular protrusion 102 can be inserted into the annular groove 103, so that multiple well bodies 1 can maintain a coaxial state.

[0061] Reference Figures 1-2 , Figure 13 As shown, the inner side walls of the annular groove 103 are inclined, making the cross-section of the annular groove 103 an inverted trapezoidal structure. In this way, when the positioning wheels 4 on the multiple sets of support rods 5 are about to contact the inner wall of the well body 1, the annular protrusion 102 can coincide with the annular groove 103 in the vertical direction. As a result, when the upper well body 1 falls, the annular protrusion 102 can slide down along the inner wall of the annular groove 103 and make the two well bodies 1 completely aligned. This structure can further improve the stability of the upper and lower well bodies 1 after assembly.

[0062] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A prefabricated cable inspection well, comprising a well body, the well body being prefabricated and capable of being assembled in the vertical direction, characterized in that: In two vertically assembled well bodies, the upper well body is equipped with an adjustment mechanism that is detachably connected to the well body, and the lower well body is equipped with a partition that cooperates with the adjustment mechanism and can move upward relative to the well body. When the two well bodies are assembled in the vertical direction, the bottom end of the adjustment mechanism can contact the partition and open as the upper well body falls, so that the upper and lower well bodies can be aligned in the vertical direction. When the upper and lower well bodies are aligned, the adjustment mechanism and the partition are inserted into each other.

2. The prefabricated cable inspection well according to claim 1, characterized in that: The adjustment mechanism includes a rotating block and multiple support rods hinged to the bottom of the rotating block. The multiple support rods are arranged in a circular array relative to the rotating block, and the support rods are elastically engaged with the rotating block. A positioning wheel is rotatably installed at the end of the support rod away from the rotating block, and an insertion rod that is inserted into the partition plate is provided at the axis of the rotating block.

3. A prefabricated cable inspection well according to claim 2, characterized in that: The inner wall of the well body is recessed inward near the top to form a placement groove. The bottom of the placement groove is a support part. A limiting part is formed in the placement groove above the support part. The depth of the limiting part is less than the depth of the support part. Insert plates are elastically connected to both sides of the bottom surface of the partition. Initially, one end of the insert plate is located between the support part and the limiting part.

4. A prefabricated cable inspection well according to claim 3, characterized in that: The top of the partition is fixedly equipped with multiple baffles that cooperate with the support rods. A guide frame is elastically connected to one side of the baffle. A connecting rod is elastically arranged on the guide frame along the vertical direction. A top block is fixedly arranged at the end of the connecting rod that passes downward through the partition. Two guide grooves distributed in a figure-eight shape are opened on the insert plate. Two pressure rods are slidably connected to the bottom of the partition. The bottom end of the pressure rod passes downward through the guide groove. Both sides of the top block near the pressure rod are set as inclined surfaces. A gear is arranged on one side of the positioning wheel. The gear rotates synchronously with the positioning wheel. A rack that meshes with the gear is fixedly embedded on the inner side of the connecting rod.

5. A prefabricated cable inspection well according to claim 4, characterized in that: A fixed block is provided on the top of the rotating block. The insertion rod is fixedly installed on the bottom surface of the fixed block. The insertion rod passes downward through the rotating block and is elastically engaged with the rotating block through a torsion unit. A rotating shaft is fixedly provided at one end of the support rod near the rotating block. A strip groove is provided on the outer peripheral wall of the insertion rod. An anti-rotation strip is fixedly provided on the rotating shaft. The end of the anti-rotation strip away from the rotating shaft is inserted into the strip groove.

6. A prefabricated cable inspection well according to claim 5, characterized in that: Two pin sleeves are fixedly installed on the outer peripheral wall of the fixing block, and a pin is elastically connected inside the pin sleeve. A pull rod is elastically connected at the top of the fixing block, and a traction rope is fixedly installed between the pull rod and the pin. A round hole that mates with the pin is opened on the inner wall of the well body near the bottom.

7. A prefabricated cable inspection well according to claim 3, characterized in that: The inner wall of the placement groove, located above the limiting part, is configured as a connecting part, so that the placement groove can transition into the inner wall of the well body.

8. A prefabricated cable inspection well according to claim 1, characterized in that: The well body has through holes in its well wall.

9. A prefabricated cable inspection well according to claim 1, characterized in that: A connecting lug is fixedly installed on the outer wall of the well body near the top.

10. A prefabricated cable inspection well according to claim 1, characterized in that: The top end face of the well body has a downward-recessed annular groove, and the bottom end face of the well body extends downward to form an annular protrusion that matches the annular groove.

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