A sealing mold for pre-drilled holes in inspection wells

Abstract

This utility model discloses a sealing mold for a pre-drilled hole in a manhole, including a sealing ring plate. A connecting frame is centrally located on the sealing ring plate, and an adjusting screw is rotatably connected to the center of the connecting frame. The adjusting screw has axial limiting components that abut against the upper and lower sides of the connecting frame. An internally threaded adjusting pipe is threadedly connected to the adjusting screw. Support legs are rotatably connected to both sides of the bottom surface of the connecting frame. A connecting rod is provided between the support legs and the internally threaded adjusting pipe, with both ends of the connecting rod rotatably connected to the support legs and the internally threaded adjusting pipe, respectively. The sealing ring plate provided by this utility model can tightly fit the end face of the pre-drilled hole, effectively sealing one side of the gap between the pipe and the pre-drilled hole in the manhole. This prevents concrete from leaking out of the gap during pouring, ensuring that the concrete fully fills the gap and avoiding leakage problems at the interface due to incomplete filling.

Description

Technical Field

[0001] This utility model relates to a sealing mold for a pre-drilled hole in a manhole. Background Technology

[0002] In recent years, inspection wells have been rapidly adopted in municipal engineering projects due to their high efficiency and stable quality. During production, inspection wells have pre-drilled openings in the well wall for pipe connections. These openings are typically slightly larger than the outer diameter of the pipe to facilitate installation and accommodate construction deviations. This results in an annular gap between the installed pipe and the well wall.

[0003] Currently, the conventional filling method in the industry is to manually seal the inside of the well wall with fine aggregate concrete or cement mortar to fix the pipe and achieve a water-stopping effect. However, due to the lack of effective mold support between the pipe and the outside of the well wall during the filling process, the concrete may not be filled properly, which can easily cause water seepage at the opening. Utility Model Content

[0004] The main purpose of this utility model is to provide a sealing mold for the reserved hole of the inspection well, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved by adopting the following technical solution: A sealing mold for a pre-drilled hole in a manhole includes a sealing ring plate. A connecting frame is disposed at the center of the sealing ring plate. An adjusting screw is rotatably connected to the center of the connecting frame. An axial limiting member is disposed on the adjusting screw and abuts against the upper and lower sides of the connecting frame. An internally threaded adjusting tube is threadedly connected to the adjusting screw. Support legs are rotatably connected to both sides of the bottom surface of the connecting frame. A connecting rod is disposed between the support legs and the internally threaded adjusting tube. The two ends of the connecting rod are rotatably connected to the support legs and the internally threaded adjusting tube, respectively.

[0006] Preferably, connecting plates are provided on both sides of the bottom surface of the connecting frame, and the bottom surface of the connecting plates is rotatably connected to the top surface of the supporting leg.

[0007] Preferably, the internal threaded adjusting tube is provided with ear plates on both sides, and one end of the connecting rod is rotatably connected to the ear plates.

[0008] Preferably, a support block is rotatably connected to the bottom of the support leg.

[0009] Preferably, a spring is provided between the upper inner side of the support block and the support leg.

[0010] Preferably, the sealing ring plate includes a first half-sealing ring plate and a second half-sealing ring plate arranged opposite to each other, and a rotating shaft is horizontally arranged on both sides of the connecting frame, with the inner sides of the first half-sealing ring plate and the second half-sealing ring plate being rotatably connected to the rotating shaft.

[0011] Preferably, a first hinge sleeve is provided on the inner side of the first semi-sealing ring plate, and a second hinge sleeve is provided on the inner side of the second semi-sealing ring plate. The first hinge sleeve and the second hinge sleeve are staggered and sleeved on the outer side of the rotating shaft.

[0012] Preferably, the outer end face of the rotating shaft is provided with a stud, a locking plate is sleeved on the stud, and locking blocks are horizontally provided at both ends of the inner side of the locking plate. The outer sides of the first semi-sealing ring plate and the second semi-sealing ring plate are respectively provided with a first groove and a second groove for inserting the locking blocks. The locking plate is fixed to the stud by a nut.

[0013] Preferably, a knob is provided on the top of the adjusting screw.

[0014] The beneficial technical effects of this utility model are as follows: The closed mold provided by this utility model uses a rotating adjusting screw to move the internal threaded adjusting tube up and down, while the two supporting legs expand radially synchronously and stably, thereby quickly locking from inside the pipe and ensuring the mold remains stable during concrete pouring. The sealing ring plate can tightly fit the end face of the reserved hole, effectively sealing one side of the gap between the pipe and the reserved hole of the inspection well, preventing concrete from leaking out of the gap during pouring, ensuring that the concrete can fully fill the gap, and avoiding interface leakage problems caused by incomplete filling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the closed mold structure according to an embodiment of the present invention; Figure 2 This is a front view of the closed mold according to an embodiment of the present invention; Figure 3 This is a top view of the closed mold according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first and second semi-sealing ring plates according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the closed mold folding structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the card slot plate and card slot block structure according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the outer structure of the closed mold in use according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the inner structure of the closed mold in use according to an embodiment of the present invention.

[0016] In the diagram: 1. Sealing ring plate; 101. First half-sealing ring plate; 102. Second half-sealing ring plate; 103. First hinge sleeve; 104. Second hinge sleeve; 105. First groove; 106. Second groove; 2. Connecting frame; 3. Adjusting screw; 4. Axial limiting component; 5. Internal thread adjusting tube; 6. Support leg; 7. Connecting rod; 8. Connecting plate; 9. Ear plate; 10. Support block; 11. Spring; 12. Rotating shaft; 13. Stud; 14. Positioning plate; 15. Positioning block; 16. Nut; 17. Knob. Detailed Implementation

[0017] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0018] like Figures 1-8 As shown, the sealing mold for the pre-reserved hole of the inspection well provided in this embodiment includes a sealing ring plate 1. A connecting frame 2 is provided at the center of the sealing ring plate 1. An adjusting screw 3 is rotatably connected to the center of the connecting frame 2. An axial limiting member 4 is provided on the adjusting screw 3, which abuts against the upper and lower sides of the connecting frame 2. An internal thread adjusting tube 5 is threadedly connected to the adjusting screw 3. Support legs 6 are rotatably connected to both sides of the bottom surface of the connecting frame 2. A connecting rod 7 is provided between the support legs 6 and the internal thread adjusting tube 5. The two ends of the connecting rod 7 are rotatably connected to the support legs 6 and the internal thread adjusting tube 5, respectively.

[0019] When in use, insert the support leg 6 into the pipe until the sealing ring plate 1 presses against one side of the pre-drilled hole of the inspection well and blocks the gap between the pipe and the pre-drilled hole. Turn the adjusting screw 3 to move the internal thread adjusting pipe 5 upward, which will cause the support legs 6 on both sides to expand outward and press against the inner wall of the pipe, thus completing the fixation of the sealing mold. Then, fill the gap with concrete from the other side of the pre-drilled hole.

[0020] During disassembly, rotate the adjusting screw 3 in the opposite direction to move the internal thread adjusting tube 5 downward, causing the support legs 6 on both sides to retract inward, and then remove the support legs 6 from the tube.

[0021] The axial limiting component 4 ensures that the adjusting screw 3 can only rotate along its own axis and cannot move axially, thus ensuring that the internal thread adjusting tube 5 can move with the rotation of the adjusting screw 3.

[0022] In this embodiment, as Figure 1 As shown, connecting plates 8 are provided on both sides of the bottom surface of the connecting frame 2. The bottom surface of the connecting plate 8 is rotatably connected to the top surface of the support leg 6, providing a sturdy and independent hinge point for the support leg 6, which improves the structural stability. Through actual use, by setting the appropriate length and direction of the connecting plate 8, the adjustment process of the support leg 6 can be made smoother.

[0023] In this embodiment, as Figure 1 As shown, ear plates 9 are provided on both sides of the internal thread adjusting tube 5. One end of the connecting rod 7 is rotatably connected to the ear plate 9, which moves the hinge point outward, optimizes the working angle of the connecting rod 7, makes the force transmission more efficient, and makes the adjustment more effortless.

[0024] In this embodiment, as Figure 1 As shown, a support block 10 is rotatably connected to the bottom of the support leg 6. The working surface on the outer side of the support block 10 is provided with multiple anti-slip protrusions, which can better fit the inner wall of the pipe, improve friction, and enhance the support effect.

[0025] In this embodiment, as Figure 1 As shown, a spring 11 is provided between the upper inner side of the support block 10 and the support leg 6, so that the support block 10 is kept in a nearly vertical position before use, and can be inserted into the pipe more quickly.

[0026] In this embodiment, as Figure 4 As shown, the sealing ring plate 1 includes a first semi-sealing ring plate 101 and a second semi-sealing ring plate 102 arranged opposite to each other. The connecting frame 2 has a rotating shaft 12 arranged horizontally on both sides. The inner sides of the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102 are rotatably connected to the rotating shaft 12. The inner side of the first semi-sealing ring plate 101 is provided with a first hinge sleeve 103, and the inner side of the second semi-sealing ring plate 102 is provided with a second hinge sleeve 104. The first hinge sleeve 103 and the second hinge sleeve 104 are staggered and sleeved on the outside of the rotating shaft 12.

[0027] The hinge structure allows the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102 to be folded upwards when not in use, reducing the lateral space occupied.

[0028] The hinge structure and pivot 12 are located above the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102. When unfolded for use, the lower parts of the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102 close to form a closed surface, which does not affect the sealing of the concrete.

[0029] In this embodiment, as Figures 1-6 As shown, a stud 13 is provided on the outer end face of the rotating shaft 12, and a locking plate 14 is sleeved on the stud 13. Locking blocks 15 are horizontally provided at both ends of the inner side of the locking plate 14. A first groove 105 and a second groove 106 for inserting the locking blocks 15 are respectively provided on the outer side surfaces of the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102. The locking plate 14 is fixed to the stud 13 by a nut 16.

[0030] In use, after the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102 are horizontally unfolded, the locking plate 14 is sleeved on the stud 13, so that the two locking blocks 15 are respectively inserted into the first groove 105 and the second groove 106, and the locking plate 14 is fixed with the nut 16 to prevent the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102 from rotating, so that the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102 are always in a horizontally unfolded state during use.

[0031] The bottom surfaces of the two locking blocks 15 abut against the inner bottom surfaces of the first groove 105 and the second groove 106, respectively.

[0032] Alternatively, the first groove 105 and the second groove 106 may not be provided, so that the bottom surfaces of the two locking blocks 15 abut against the outer surfaces of the first semi-sealing ring plate 101 and the second semi-sealing ring plate 102, respectively.

[0033] After use, loosen nut 16 and remove the locking plate 14 and locking block 15. Then, the first half-sealing ring plate 101 and the second half-sealing ring plate 102 can be folded upwards for storage, reducing the space occupied laterally.

[0034] In this embodiment, as Figure 1 As shown, a knob 17 is provided on the top of the adjusting screw 3 for easy hand adjustment by the operator.

[0035] In summary, in this embodiment, the closed mold provided uses the rotating adjusting screw 3 to drive the internal thread adjusting pipe 5 to move up and down, while the two side support legs 6 achieve synchronous and stable radial expansion, thereby quickly locking from inside the pipe and ensuring that the mold remains stable during concrete pouring. The sealing ring plate 1 can tightly fit the end face of the reserved hole, forming an effective temporary seal on one side of the gap between the pipe and the reserved hole of the inspection well, preventing concrete from leaking out of the gap during pouring, ensuring that the concrete can fully fill the gap, and avoiding interface leakage problems caused by incomplete filling.

[0036] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A sealing mold for a pre-drilled hole in a manhole, characterized in that: The device includes a sealing ring plate (1), a connecting frame (2) at the center of the sealing ring plate (1), an adjusting screw (3) rotatably connected to the center of the connecting frame (2), an axial limiting member (4) abutting against the upper and lower sides of the connecting frame (2) on the adjusting screw (3), an internal thread adjusting tube (5) threadedly connected to the adjusting screw (3), support legs (6) rotatably connected to both sides of the bottom surface of the connecting frame (2), a connecting rod (7) between the support legs (6) and the internal thread adjusting tube (5), and the two ends of the connecting rod (7) rotatably connected to the support legs (6) and the internal thread adjusting tube (5) respectively. The sealing ring plate (1) includes a first half sealing ring plate (101) and a second half sealing ring plate (102) arranged opposite to each other. A rotating shaft (12) is horizontally arranged on both sides of the connecting frame (2). The first half sealing ring plate (101) and the second half sealing ring plate (102) are connected to each other. The inner side of the plate (102) is rotatably connected to the rotating shaft (12). The inner side of the first semi-sealing ring plate (101) is provided with a first hinge sleeve (103), and the inner side of the second semi-sealing ring plate (102) is provided with a second hinge sleeve (104). The first hinge sleeve (103) and the second hinge sleeve (104) are staggered and sleeved on the outer side of the rotating shaft (12). The outer end face of the rotating shaft (12) is provided with a stud (13). A locking plate (14) is sleeved on the stud (13). The two ends of the inner side of the locking plate (14) are horizontally provided with locking blocks (15). The outer sides of the first semi-sealing ring plate (101) and the second semi-sealing ring plate (102) are respectively provided with a first groove (105) and a second groove (106) for inserting the locking blocks (15). The locking plate (14) is fixed on the stud (13) by a nut (16).

2. The sealing mold for a pre-drilled hole in a manhole according to claim 1, characterized in that: The bottom surface of the connecting frame (2) is provided with connecting plates (8) on both sides, and the bottom surface of the connecting plate (8) is rotatably connected to the top surface of the support leg (6).

3. The sealing mold for a pre-drilled hole in a manhole according to claim 1, characterized in that: The internal threaded adjusting tube (5) is provided with ear plates (9) on both sides, and one end of the connecting rod (7) is rotatably connected to the ear plates (9).

4. The sealing mold for a pre-drilled hole in a manhole according to claim 1, characterized in that: The bottom of the support leg (6) is rotatably connected to a support block (10).

5. The sealing mold for a pre-drilled hole in a manhole according to claim 4, characterized in that: A spring (11) is provided between the upper inner side of the support block (10) and the support leg (6).

6. The sealing mold for a pre-drilled hole in a manhole according to claim 1, characterized in that: A knob (17) is provided on the top of the adjusting screw (3).

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