Adjustable inspection well internal mold device

Abstract

The utility model provides an adjustable inspection well internal mold device, which belongs to the technical field of engineering molds and comprises a central column which is a hollow column, four first internal mold blocks and four second internal mold blocks. The first inner module and the second inner module are spliced together to form a complete circular ring, an elastic telescopic rod is fixedly connected to the inner side wall of the first inner module, the end, away from the first inner module, of the elastic telescopic rod is fixedly connected to the outer side wall of the center column, and a movable column is fixedly connected to the inner side wall of the second inner module; a threaded hole is formed in the movable column, and the movable column extends into the center column and is in sliding connection with the center column. The concrete and the inner mold are separated through the demolding assembly, manual operation is not needed, the working efficiency is improved, the inner mold does not make contact with the concrete in the demolding process, therefore, friction force does not exist, and the working efficiency is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of engineering mold technology, and in particular relates to an adjustable manhole inner mold device. Background Technology

[0002] Inspection wells are ancillary facilities in stormwater and sewage pipeline projects such as residential communities, urban and rural municipal projects, industrial parks, civil buildings, or old city renovations. They are usually located at pipe intersections, bends, changes in pipe diameter or slope, and straight pipe sections at certain intervals. They are structures that facilitate regular inspection, cleaning, and dredging of stormwater and sewage drainage pipelines, or for inspection operations by entering the well. Inspection well molds are molds used to form circular or square inspection wells.

[0003] Manhole molds typically consist of an inner mold and an outer mold. During production, concrete is poured into the cavity formed by the inner and outer molds. After the concrete solidifies, the manhole is demolded. The demolding efficiency directly affects the production efficiency of the manhole. Therefore, to make the demolding process smoother, a release agent is usually applied to the surface of the inner mold before pouring concrete, thereby reducing the adhesion between the concrete and the mold.

[0004] This approach also has the following shortcomings;

[0005] Although the release agent reduces the adhesion between the concrete and the mold, friction still exists between the mold and the concrete during the demolding process, resulting in low demolding efficiency. Furthermore, the release agent requires manual spraying, which further reduces the demolding efficiency. Utility Model Content

[0006] The purpose of this utility model is to solve the problems mentioned in the background art of the prior art, and to propose an adjustable manhole inner mold device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An adjustable manhole inner mold device, comprising:

[0009] A central column, wherein the central column is a hollow column;

[0010] There are four first inner modules and four second inner modules. The first inner modules and the second inner modules are spliced ​​together to form a complete ring. An elastic telescopic rod is fixedly connected to the inner side wall of the first inner module. The end of the elastic telescopic rod away from the first inner module is fixedly connected to the outer side wall of the central column. A movable column is fixedly connected to the inner side wall of the second inner module. The movable column has a threaded hole and extends into the interior of the central column and is slidably connected to the central column.

[0011] Preferably, a limiting plate is fixedly connected to the side wall of the movable column, and a sliding groove adapted to the limiting plate is provided on the side wall of the central column, and the limiting plate is slidably connected in the sliding groove.

[0012] Preferably, the central column is provided with a demolding assembly, which includes a mounting plate fixedly connected to the inner wall of the central column. Four rotating seats are fixedly connected to the upper surface of the mounting plate, and a lead screw is rotatably connected to the rotating seats. The lead screw is threadedly connected to the movable column.

[0013] Preferably, the demolding assembly further includes a motor fixedly connected to the lower surface of the mounting plate, the output shaft of the motor passing through the mounting plate, a first bevel gear fixedly connected to the output shaft of the motor, and a second bevel gear meshing with the first bevel gear fixedly connected to one end of the lead screw inside the central column.

[0014] Preferably, the elastic telescopic rod includes a sleeve fixedly connected to the side wall of the first inner module, a slider slidably connected inside the sleeve, a sliding rod fixedly connected to the end of the slider away from the first inner module, the end of the sliding rod away from the slider passing through the sleeve and fixedly connected to the central column, and a spring sleeved on the sliding rod.

[0015] Preferably, the spring is in a compressed state when the first inner module and the second inner module form a complete ring.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This utility model, by setting up a demolding component, uses a motor to drive the first bevel gear to rotate, which in turn drives the second bevel gear and the lead screw to rotate. Under the action of the threaded engagement, the four movable columns and the second inner module move towards the direction of the central column, while the first inner module moves towards the direction of the central axis under the elastic force of the spring, thereby realizing the separation of concrete from the inner mold. No manual operation is required, which improves work efficiency.

[0018] 2. When demolding (removing the inner mold from the concrete), the inner mold does not come into contact with the concrete, thus eliminating friction and further improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an adjustable manhole inner mold device proposed in this utility model;

[0020] Figure 2 This is a top view schematic diagram of the overall structure of an adjustable manhole inner mold device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the elastic telescopic rod structure of an adjustable manhole inner mold device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the first and second inner modules of an adjustable manhole inner mold device proposed in this utility model.

[0023] Figure 5 This is a schematic diagram of the demolding component structure of an adjustable manhole inner mold device proposed in this utility model.

[0024] In the diagram: 1. Central column, 2. First inner module, 3. Second inner module, 21. Elastic telescopic rod, 31. Movable column, 32. Threaded hole, 33. Limiting plate, 41. Mounting plate, 42. Rotating seat, 43. Lead screw, 44. Motor, 45. First bevel gear, 46. Second bevel gear, 211. Sleeve, 212. Slider, 213. Slide rod, 214. Spring. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1-5 An adjustable manhole mold device, comprising:

[0027] Central column 1, central column 1 is a hollow column;

[0028] There are four first inner modules 2 and four second inner modules 3. These modules are assembled to form a complete ring. An elastic telescopic rod 21 is fixedly connected to the inner wall of the first inner module 2. The elastic telescopic rod 21 includes a sleeve 211 fixedly connected to the side wall of the first inner module 2. A slider 212 is slidably connected inside the sleeve 211. A sliding rod 213 is fixedly connected to the end of the slider 212 away from the first inner module 2. The end of the sliding rod 213 away from the slider 212 passes through the sleeve 211 and is fixedly connected to the central column 1. A spring 214 is fitted on the 13. When the first inner module 2 and the second inner module 3 form a complete ring, the spring 214 is in a compressed state. The end of the elastic telescopic rod 21 away from the first inner module 2 is fixedly connected to the outer wall of the central column 1. A movable column 31 is fixedly connected to the inner wall of the second inner module 3. A threaded hole 32 is opened on the movable column 31. The movable column 31 extends into the interior of the central column 1 and is slidably connected to the central column 1. A limiting plate 33 is fixedly connected to the side wall of the movable column 31. A sliding groove adapted to the limiting plate 33 is opened on the side wall of the central column 1. The limiting plate 33 is slidably connected in the sliding groove.

[0029] The central column 1 is equipped with a demolding assembly, which includes a mounting plate 41 fixedly connected to the inner wall of the central column 1. Four rotating seats 42 are fixedly connected to the upper surface of the mounting plate 41. A lead screw 43 is rotatably connected to the rotating seats 42. The lead screw 43 is threadedly connected to the movable column 31. The demolding assembly also includes a motor 44 fixedly connected to the lower surface of the mounting plate 41. The output shaft of the motor 44 passes through the mounting plate 41. A first bevel gear 45 is fixedly connected to the output shaft of the motor 44. A second bevel gear 46 that meshes with the first bevel gear 45 is fixedly connected to one end of the lead screw 43 inside the central column 1.

[0030] The functional principle of this utility model can be explained through the following operation methods:

[0031] In use, the motor 44 is controlled to rotate forward, which drives the first bevel gear 45 to rotate, which in turn drives the lead screw 43 to rotate under the action of the second bevel gear 46. Under the action of the threaded engagement, the movable column 31 drives the second inner module 3 to move away from the central column 1. When the second inner module 3 moves, it pushes the first inner module 2 to move away from the central column 1. When the first inner module 2 and the second inner module 3 form a complete ring, the motor 44 is turned off. At this time, the spring 214 is in a compressed state. Then, concrete is poured into the cavity formed by the inner mold and the outer mold and waits for the concrete to form.

[0032] After the concrete is formed, the control motor 44 reverses, which drives the second inner module 3 to move closer to the central column 1. The first inner module 2 moves closer to the central column 1 under the elastic force of the spring 214, thereby separating the concrete from the inner mold. No manual operation is required, which improves work efficiency. Then, the inner mold is removed from the concrete by means of machinery or manual labor. During the removal process, the inner mold does not come into contact with the concrete, so there is no friction, which further improves work efficiency.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable in-well form, comprising: include: A central column (1), wherein the central column (1) is a hollow column; There are four first inner modules (2) and four second inner modules (3). The first inner modules (2) and the second inner modules (3) are spliced ​​together to form a complete ring. An elastic telescopic rod (21) is fixedly connected to the inner wall of the first inner module (2). The end of the elastic telescopic rod (21) away from the first inner module (2) is fixedly connected to the outer wall of the central column (1). A movable column (31) is fixedly connected to the inner wall of the second inner module (3). A threaded hole (32) is opened on the movable column (31). The movable column (31) extends into the interior of the central column (1) and is slidably connected to the central column (1).

2. An adjustable in-line manhole form assembly according to claim 1, wherein, A limiting plate (33) is fixedly connected to the side wall of the movable column (31), and a sliding groove adapted to the limiting plate (33) is provided on the side wall of the central column (1), and the limiting plate (33) is slidably connected in the sliding groove.

3. An adjustable in-line manhole form assembly according to claim 1, wherein, The central column (1) is provided with a demolding assembly. The demolding assembly includes a mounting plate (41) fixedly connected to the inner wall of the central column (1). Four rotating seats (42) are fixedly connected to the upper surface of the mounting plate (41). A lead screw (43) is rotatably connected to the rotating seat (42). The lead screw (43) is threadedly connected to the movable column (31).

4. An adjustable in-line manhole form assembly according to claim 3, wherein, The demolding assembly also includes a motor (44) fixedly connected to the lower surface of the mounting plate (41). The output shaft of the motor (44) passes through the mounting plate (41). A first bevel gear (45) is fixedly connected to the output shaft of the motor (44). A second bevel gear (46) that meshes with the first bevel gear (45) is fixedly connected to one end of the lead screw (43) inside the central column (1).

5. An adjustable in-line manhole form assembly according to claim 1 wherein, The elastic telescopic rod (21) includes a sleeve (211) fixedly connected to the side wall of the first inner module (2), a slider (212) slidably connected inside the sleeve (211), a sliding rod (213) fixedly connected to the end of the slider (212) away from the first inner module (2), and the end of the sliding rod (213) away from the slider (212) passing through the sleeve (211) and fixedly connected to the central column (1), and a spring (214) sleeved on the sliding rod (213).

6. An adjustable in-line manhole form assembly according to claim 5, wherein, When the first inner module (2) and the second inner module (3) form a complete ring, the spring (214) is in a compressed state.

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