Manhole cover plate shaping template with inward shrinkage breakage-proof structure

Abstract

The utility model discloses an inspection well cover plate shaping template with an inward shrinkage breakage-proof structure, which comprises an outer ring, an inner ring I arranged in the center of the outer ring, and an inner ring II connected with the inner ring I to form a circular ring, the inner ring I and the inner ring II are connected with a shrinkage structure, and the shrinkage structure is connected with the inner ring I and the inner ring II. The contraction structure can control the first inner ring and the second inner ring to move towards the center through a piston rod, the contraction structure comprises a connecting column, the connecting column is installed at the circular ring center of the second inner ring and the first inner ring, an air bag is installed on the bottom surface of the inner wall of the connecting column, and a pressing plate is installed on the upper surface of the air bag; and a threaded rod is rotationally mounted on the upper surface of the pressing plate. According to the manhole cover plate shaping template with the inward shrinkage breakage-proof structure, the reinforcing structure is arranged, the first inner ring and the second inner ring can be reinforced through the inserting plate, the shrinkage structure is further arranged, and the piston rod can drive the first inner ring and the second inner ring to move through the threaded rod.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover plate shaping templates, in particular to a manhole cover plate shaping template provided with an inwardly retracted anti-damage structure. Background Art

[0002] Inspection wells are set up to facilitate the maintenance and installation of power supply, water supply, drainage, sewage and other urban underground infrastructure. They are usually set up at pipeline intersections, bends, places where pipe diameters or slopes change, and at certain intervals on straight pipe sections. The inspection well cover is an important component of the inspection well and is usually made by on-site casting.

[0003] This on-site pouring causes cracking and leakage in the manhole cover, so it is necessary to prefabricate it through a manhole cover forming template device, which can greatly improve the quality of the manhole cover. However, the manhole cover forming template will cause wear on the inner wall of the opening when disassembled, affecting the product quality. Utility Model Content

[0004] The utility model aims to provide a manhole cover plate forming template with an inward-shrinking anti-damage structure to solve the problem in the above-mentioned background technology that the manhole cover plate forming template may cause wear to the inner wall of the opening when dismantling.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manhole cover forming template with an inward-shrinking anti-damage structure, comprising an outer ring, an inner ring one is arranged at the center of the outer ring, and also comprises an inner ring two, the inner ring two is connected with the inner ring one to form a circular ring, the inner ring one and the inner ring two are connected with a shrinking structure, and the shrinking structure can control the inner ring one and the inner ring two to move toward the center through a piston rod.

[0006] Preferably, the contraction structure includes a connecting column, which is installed at the center of the circular ring of the inner ring two and the inner ring one, an airbag is installed on the bottom surface of the inner wall of the connecting column, and a pressure plate is installed on the upper surface of the airbag, a threaded rod is rotatably installed on the upper surface of the pressure plate, and the threaded rod rotatably penetrates the upper surface of the connecting column, an air pipe is connected to the side surface of the airbag, and the other end of the air pipe penetrates the outer surface of the connecting column and is connected with a piston rod, the piston rod is fixedly installed on the outer surface of the connecting column, and the other end of the piston rod is respectively connected to the inner wall surface of the inner ring one or the inner ring two.

[0007] By adopting the above technical solution, the inner ring one and the inner ring two can be contracted by the piston rod.

[0008] Preferably, two inner rings one and two inner rings two are provided respectively, and the inner rings one and two are spaced apart to enclose a circular ring.

[0009] By adopting the above technical solution, the opening of the manhole cover is enclosed by the inner circle one and the inner circle two.

[0010] Preferably, the inner wall of the outer ring is connected with a reinforcement structure, and the reinforcement structure penetrates the slot through an insert plate so that the inner ring 2 is connected to the inner ring 1.

[0011] By adopting the above technical solution, the inner circle one and the inner circle two are more tightly enclosed.

[0012] Preferably, the reinforcement structure includes a limiting ring, which is installed on the upper surface of the connecting column, and the upper surface of the limiting ring is provided with a groove, a plug rod is slidably passed through the groove, and the upper surface of the plug rod is fixedly connected to the connecting ring, the outer surface of the connecting ring is fixedly connected to a pressure ring, the lower surface of the pressure ring is connected to an insert plate, and the inner wall surfaces of the inner ring two and the inner ring one are installed with card grooves.

[0013] By adopting the above technical solution, the inserting plate is inserted into the card slot through the pressing ring.

[0014] Preferably, the lower side of the plug plate corresponds to the opening of the card slot, and the card slots of the inner ring 2 and the inner ring 1 are connected and combined.

[0015] By adopting the above technical solution, the card slots can be docked.

[0016] Preferably, the plug plate is configured as an arc-shaped structure.

[0017] The above technical solution is adopted to facilitate matching with the curvature of the inner circle one and the inner circle two.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the manhole cover plate forming template with an inward-shrinking anti-damage structure:

[0019] 1. The manhole cover plate forming template is provided with a shrinkage structure. First, concrete is poured between the outer ring and the inner rings 1 and 2. After solidification, the pressure ring is first pulled up so that the plug connected to the pressure ring comes out of the slot, so that the inner rings 1 and 2 lose engagement;

[0020] 2. Further, the inner ring 1 and the inner ring 2 need to be contracted. First, the threaded rod is rotated so that the lower end of the threaded rod pulls up the pressure plate. Since the lower surface of the pressure plate is fixedly connected to the airbag, the pressure plate pulls up the airbag, and the airbag will suck the airflow in the piston rod through the air pipe;

[0021] 3. Furthermore, since the piston rod is fixedly connected to the inner ring one and the inner ring two, the piston rod will drive the inner ring one and the inner ring two to shrink, so that the opening of the manhole cover shrinks and demoulds, avoiding damage to the inner wall of the inspection manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the shaft side surface structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall contraction structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting column of the utility model;

[0026] Figure 5 This is a schematic diagram of the axial side section structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the plug board of the utility model.

[0028] In the figure: 1, outer ring; 2, inner ring one; 3, inner ring two; 4, connecting column; 5, air bag; 6, air pipe; 7, piston rod; 8, pressure plate; 9, threaded rod; 10, slot; 11, limit ring; 12, plug rod; 13, connecting ring; 14, pressure ring; 15, plug plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 The utility model provides a technical solution: a manhole cover forming template with an inward-shrinking anti-damage structure, including an outer ring 1, an inner ring 1 2, an inner ring 2 3, a connecting column 4, an air bag 5, an air pipe 6, a piston rod 7, a pressure plate 8, a threaded rod 9, a slot 10, a limit ring 11, an insertion rod 12, a connecting ring 13, a pressure ring 14, and an insertion plate 15.

[0031] Example 1

[0032] The manhole cover plate forming template is provided with a reinforcement structure, which can reinforce the inner ring 1 2 and the inner ring 2 3 through the plug plate 15, specifically:

[0033] An inner ring 2 is arranged at the center of the outer ring 1, and an inner ring 2 3 is connected with the inner ring 1 2 to form a circular ring. Two inner rings 1 2 and two inner rings 2 3 are respectively arranged, and the inner rings 1 2 and the inner rings 2 3 are spaced apart to enclose a circular ring. The reinforcement structure includes a limit ring 11, and the limit ring 11 is installed on the upper surface of the connecting column 4, and the upper surface of the limit ring 11 is provided with a groove, and a plug rod 12 is slidably penetrated through the groove, and a connecting ring 13 is fixedly connected to the upper surface of the plug rod 12, and a pressure ring 14 is fixedly connected to the outer surface of the connecting ring 13, and an insert plate 15 is connected to the lower surface of the pressure ring 14, and a card slot 10 is installed on the inner wall surface of the inner ring 2 3 and the inner ring 1 2, and the lower part of the insert plate 15 corresponds to the opening of the card slot 10, and the inner ring 2 3 is connected to the card slot 10 of the inner ring 1 2, and the insert plate 15 is arranged as an arc structure.

[0034] When the manhole cover plate template is used, Figure 1 As shown, first, a release agent is applied to the inner wall surface of the outer ring 1 and the outer surface of the circular ring enclosed by the inner ring one 2 and the inner ring two 3, and then concrete is poured between the outer ring 1 and the inner ring one 2 and the inner ring two 3. When demolding is required, the pressure ring 14 needs to be pulled upward first, so that the pressure ring 14 drives the lower surface connecting plug plate 15 upward, so that the plug plate 15 is disengaged from the card slot 10, so that the inner ring one 2 and the inner ring two 3 lose the opening and closing, and can move. At the same time, the connecting ring 13 will move upward at the same time, so that the plug rod 12 on the lower surface of the connecting ring 13 is disengaged from the slot of the limiting ring 11, and the plug rod 12 and the limiting ring 11 can make the plug plate 15 quickly positioned and inserted into the card slot 10 during installation.

[0035] Example 2

[0036] The manhole cover plate forming template is also provided with a contraction structure, which can enable the piston rod 7 to drive the inner ring 1 2 and the inner ring 2 3 to move through the threaded rod 9, specifically:

[0037] The inner ring one 2 and the inner ring two 3 are connected with a contraction structure, and the contraction structure can control the inner ring one 2 and the inner ring two 3 to move toward the center through the piston rod 7. The contraction structure includes a connecting column 4, and the connecting column 4 is installed at the center of the circular ring of the inner ring two 3 and the inner ring one 2. An airbag 5 is installed on the bottom surface of the inner wall of the connecting column 4, and a pressure plate 8 is installed on the upper surface of the airbag 5. A threaded rod 9 is rotatably installed on the upper surface of the pressure plate 8, and the threaded rod 9 rotates and penetrates the upper surface of the connecting column 4. The side surface of the airbag 5 is connected with an air pipe 6, and the other end of the air pipe 6 penetrates the outer surface of the connecting column 4 and is connected with the piston rod 7. The piston rod 7 is fixedly installed on the outer surface of the connecting column 4, and the other end of the piston rod 7 is respectively connected to the inner wall surface of the inner ring one 2 or the inner ring two 3. Two inner rings are respectively provided, and the inner ring one 2 and the inner ring two 3 are spaced to enclose a circular ring;

[0038] Then rotate the threaded rod 9, as Figure 5As shown, the threaded rod 9 rotates upward, so that the lower end of the threaded rod 9 pulls the pressure plate 8 upward. Since the threaded rod 9 is rotatably connected to the pressure plate 8, the threaded rod 9 will not press the pressure plate 8 when rotating. The pressure plate 8 drives the airbag 5 fixedly connected to the lower surface upward, so that the airbag 5 expands, and then the airbag 5 will suck the airflow through the trachea 6. Since the other end of the trachea 6 passes through the outer surface of the connecting column 4 and is connected to the piston rod 7, the piston rod 7 will contract. Figure 3 As shown, multiple piston rods 7 are connected to the inner wall surfaces of the inner ring 1 2 and the inner ring 2 3 respectively. When the piston rod 7 contracts, since the cross sections of the inner ring 1 2 and the inner ring 2 3 are offset, the piston rod 7 will first pull the inner ring 2 3 to move, and then pull the inner ring 1 2. After the inner ring 1 2 and the inner ring 2 3 contract, Figure 2 As shown, it is convenient for the manhole cover to be demoulded.

[0039] Working principle: When using the manhole cover forming template with a shrinkage anti-damage structure, the inner ring one 2 and the inner ring two 3 can be reinforced by the reinforcement structure. A shrinkage structure is also provided. By rotating the threaded rod 9, the inner ring one 2 and the inner ring two 3 are successively shrunk, thereby increasing the overall practicality.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manhole cover plate forming template with an inward shrinkage anti-damage structure, comprising an outer ring (1), wherein an inner ring (2) is arranged at the center of the outer ring (1), characterized in that: It also includes an inner ring 2 (3), the inner ring 2 (3) and the inner ring 1 (2) are connected to form a circular ring, the inner ring 1 (2) and the inner ring 2 (3) are connected with a contraction structure, and the contraction structure can control the inner ring 1 (2) and the inner ring 2 (3) to move toward the center through a piston rod (7); the contraction structure includes a connecting column (4), the connecting column (4) is installed at the center of the circular ring of the inner ring 2 (3) and the inner ring 1 (2), and an air bag (5) is installed on the inner wall bottom surface of the connecting column (4), and the upper surface of the air bag (5) is A pressure plate (8) is installed on the surface, a threaded rod (9) is rotatably installed on the upper surface of the pressure plate (8), and the threaded rod (9) rotatably penetrates the upper surface of the connecting column (4), the side surface of the airbag (5) is connected to an air pipe (6), and the other end of the air pipe (6) penetrates the outer surface of the connecting column (4) and is connected to the piston rod (7), the piston rod (7) is fixedly installed on the outer surface of the connecting column (4), and the other end of the piston rod (7) is respectively connected to the inner wall surface of the inner ring one (2) or the inner ring two (3).

2. The manhole cover plate forming template with an inward shrinkage and anti-damage structure according to claim 1 is characterized in that: The inner ring one (2) and the inner ring two (3) are respectively provided with two, and the inner ring one (2) and the inner ring two (3) are spaced apart to enclose a circular ring.

3. The manhole cover plate forming template with an inward shrinkage and anti-damage structure according to claim 1 is characterized in that: The inner wall of the outer ring (1) is connected to a reinforcement structure, and the reinforcement structure penetrates the slot (10) through an insert plate (15) so that the second inner ring (3) is connected to the first inner ring (2).

4. The manhole cover plate forming template with an inward shrinkage and anti-damage structure according to claim 3 is characterized in that: The reinforcement structure comprises a limit ring (11), the limit ring (11) is mounted on the upper surface of the connecting column (4), and the upper surface of the limit ring (11) is provided with a groove, a plug rod (12) is slidably penetrated through the groove, and the upper surface of the plug rod (12) is fixedly connected to a connecting ring (13), the outer surface of the connecting ring (13) is fixedly connected to a pressure ring (14), the lower surface of the pressure ring (14) is connected to an insert plate (15), and the inner wall surfaces of the inner ring 2 (3) and the inner ring 1 (2) are provided with a card slot (10).

5. The manhole cover plate forming template with an inward shrinkage and anti-damage structure according to claim 4 is characterized in that: The lower side of the plug plate (15) corresponds to the opening of the card slot (10), and the card slots (10) of the inner ring 2 (3) and the inner ring 1 (2) are connected and combined.

6. The manhole cover plate forming template with an inward shrinkage and anti-damage structure according to claim 5 is characterized in that: The inserting plate (15) is configured as an arc-shaped structure.

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