A through-hole adjustable inspection well mold

Abstract

The application discloses a through-hole adjustable inspection well mold, relates to the field of prefabricated concrete inspection well molds, and comprises a bottom plate, an outer mold arranged on the bottom plate, an inner mold arranged in the outer mold, a fixing structure arranged on the outer mold and the inner mold, the fixing structure being used for positioning the outer mold and the inner mold, one side of the inner mold facing the outer mold being provided with a through-hole mold, and a fastening unit for disassembling and assembling the through-hole mold being fixedly connected to the inner mold and located in the inner cavity of the through-hole mold. The number of the fastening units is at least two, and the through-hole mold is fixedly connected with one of the fastening units. The application has the technical effects that when the inspection well mold is poured, the diameter size of the through hole of the inspection well can be flexibly adjusted according to actual production requirements, the versatility and application range of the mold are improved, and the outer mold is conveniently turned over.

Description

Technical Field

[0001] This application relates to the field of precast concrete manhole mold technology, and in particular to a manhole mold with adjustable through holes. Background Technology

[0002] In the construction of municipal pipeline networks, inspection wells, as key nodes of the pipeline system, undertake important functions such as inspection, dredging, and ventilation. The side walls of their wells usually need to be reserved with through holes for connection to municipal pipelines. The size of the through hole must match the diameter of the matching pipeline. At present, the industry generally uses customized fixed through hole molds to produce inspection wells. These molds are mainly composed of an outer mold, an inner mold, and a through hole forming component. The through hole forming component is a cylindrical or conical structure of fixed size. The diameter of the boss is consistent with the preset pipeline diameter. During pouring, the boss is embedded in the concrete. After demolding, a through hole matching the pipeline can be formed.

[0003] Project engineering usually requires the matching of pipes of various diameters, and the corresponding manhole through-hole size also needs to be adjusted accordingly. If the construction unit needs to purchase multiple sets of molds for different sizes, it will lead to a significant increase in mold procurement costs. At the same time, the storage of multiple sets of molds will occupy additional space, further increasing warehousing costs.

[0004] Regarding the aforementioned technologies, the inventors believe that they have the following drawbacks: poor versatility, fixed dimensions of through-hole forming components, and a single mold can only produce inspection wells with one type of through-hole. Utility Model Content

[0005] In order to improve the problem that the fixed through-hole size of the existing manhole mold makes it impossible for one mold to be adapted to the production of manholes with multiple through-hole diameter specifications, this application provides a manhole mold with adjustable through-hole.

[0006] The technical solution for the adjustable-hole inspection well mold provided in this application is as follows: An adjustable-hole manhole mold includes a base plate, an outer mold on the base plate, an inner mold inside the outer mold, and a fixing structure on the outer mold and the inner mold for positioning the outer mold and the inner mold. A through-hole mold is provided on the side of the inner mold facing the outer mold. A fastening unit for assembling and disassembling the through-hole mold is fixedly connected inside the inner mold. The fastening unit is located in the inner cavity of the through-hole mold. The number of fastening units is at least two, and the through-hole mold is fixedly connected to one of the fastening units.

[0007] By adopting the above technical solution, after the base plate, outer mold, inner mold, through-hole mold and fixing structure are assembled, a casting cavity is formed. After pouring concrete into the cavity and vibrating the concrete, the construction of the inspection well can be completed. The setting of multiple fastening units can replace the through-hole molds of different diameters according to the actual construction needs to meet the forming requirements of the concrete inspection well through holes. In use, the through-hole mold is fixed to the outside of the inner mold by fastening units. The fastening units are located in the inner cavity of the through-hole mold to prevent the concrete from directly contacting the fastening units during the pouring process, preventing the concrete from sticking and causing the fastening units to fail, and ensuring that the mold can be reused.

[0008] Optionally, the through-hole mold is welded with a reinforcing member to enhance the structural strength of the through-hole mold, and a connecting plate is welded to one end of the through-hole mold near the inner mold. The connecting plate has an oblong hole for installing a fastening unit.

[0009] By adopting the above technical solution, the reinforcing components inside the through-hole mold can effectively enhance the strength of the through-hole mold and prevent deformation of the through-hole mold during the casting process, which would affect the final casting effect. When assembling the mold, the end of the through-hole mold with the connecting plate welded on it abuts against the outside of the inner mold, and then the through-hole mold is fixed by the waist-shaped hole and fastening unit. The design of the waist-shaped hole can also provide fine-tuning space for the installation position of the through-hole mold, further improving the installation accuracy.

[0010] Optionally, the reinforcing member includes a plurality of first reinforcing ribs, which are in a grid shape and welded to the inner wall of the through-hole mold.

[0011] By adopting the above technical solution, the first reinforcing ribs are distributed in a grid pattern, which can evenly disperse the lateral pressure of concrete on the through-hole mold from multiple directions such as horizontal and vertical, significantly improving its structural strength and fatigue resistance. The welding design at the intersection of the reinforcing ribs further enhances the stability of the overall structure and extends the service life of the through-hole mold.

[0012] Optionally, the fastening unit includes a nut welded to the outer wall of the inner mold and a fastening bolt passing through a waist-shaped hole, wherein the fastening bolt is threadedly connected to the nut.

[0013] By adopting the above technical solution, when assembling the through-hole mold, the end of the through-hole mold with the connecting plate welded on it abuts against the outside of the inner mold. Then, the fastening bolt is passed through the waist-shaped hole and threadedly connected to the nut welded in the outer wall of the inner mold, and the through-hole mold is installed on the outside of the inner mold.

[0014] Optionally, a limiting block is welded to the base plate, and the outer mold is rotatably connected to the limiting block, which is used to restrict the outer mold from flipping.

[0015] By adopting the above technical solution, the outer mold can rotate and flip around the limiting block, so that workers can install or disassemble the manhole mold. The limiting block can limit the maximum flipping angle of the outer mold, preventing the outer mold from colliding with the ground or damaging parts due to excessive flipping. At the same time, the limiting block can also play an auxiliary support role for the outer mold in the mold assembly state, improving the stability of the overall mold structure and reducing construction safety risks.

[0016] Optionally, a second reinforcing rib is welded to the side of the outer mold away from the inner mold to enhance the structural strength of the outer mold.

[0017] By adopting the above technical solution, the second reinforcing rib is welded to the outside of the outer mold, which can effectively improve the deformation resistance of the outer mold. Especially during the concrete pouring and vibration process, it can offset the lateral pressure of the concrete on the outer mold, avoid problems such as bulging and deformation of the outer mold, and ensure the forming accuracy and flatness of the outer wall of the inspection well.

[0018] Optionally, the end of the inner mold away from the base plate is welded with a lifting lug for hoisting the inner mold, and the inside of the lifting lug has a lifting hole for threading ropes or hooks.

[0019] By adopting the above technical solution, when assembling the manhole mold, first pass the rope or hook through the lifting hole inside the lifting lug, then lift the inner mold and move it above the bottom plate, and then install the inner mold. When disassembling, first flip the outer mold, then take out the through-hole mold, and finally pass the rope or hook through the lifting hole inside the lifting lug to lift the inner mold and complete the demolding.

[0020] Optionally, the fixing structure includes a first connecting rod and a second connecting rod, both of which are fixedly connected to the inner mold and the outer mold, and the first connecting rod and the second connecting rod are arranged crosswise.

[0021] By adopting the above technical solution, when installing the manhole mold, the first connecting rod and the second connecting rod are fixedly connected to the top of the outer mold and the inner mold. The first connecting rod and the second connecting rod control the distance between the outer mold and the inner mold, and at the same time support the inner mold. In addition, the structure can also support the inner mold, prevent the inner mold from sinking or shifting due to its own weight or concrete pressure, and prevent pouring defects caused by the closed end of the inner mold contacting the bottom plate.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. When casting the manhole mold, the diameter of the through hole on the manhole can be adjusted according to the actual production needs; 2. When disassembling or installing the outer mold, it can limit the rotation angle of the outer mold and provide support for the outer mold to prevent it from falling and injuring workers. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an overall schematic diagram of the inspection well mold provided in the embodiments of this application; Figure 2 This is a side view schematic diagram of the manhole mold provided in the embodiment of this application; Figure 3 This is a schematic side view cross-sectional view of the manhole mold provided in the embodiment of this application; Figure 4 yes Figure 3 A magnified view of part A in the image; Figure 5 yes Figure 3 A magnified view of part B in the image; Figure 6 This is a top view schematic diagram of the manhole mold provided in the embodiment of this application.

[0025] Reference numerals: 1. Base plate; 2. Outer mold; 3. Inner mold; 4. Fixing structure; 401. First connecting rod; 402. Second connecting rod; 5. Through-hole mold; 6. Fastening unit; 601. Nut; 602. Fastening bolt; 7. Reinforcing member; 701. First reinforcing rib; 8. Connecting plate; 9. Waist-shaped hole; 10. Limiting block; 11. Second reinforcing rib; 12. Lifting lug; 13. Lifting hole. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0027] This application discloses a manhole mold with adjustable through holes.

[0028] Reference Figure 1 and Figure 2 An adjustable manhole mold includes a base plate 1, an outer mold 2 disposed on the base plate 1, an inner mold 3 disposed inside the outer mold 2, a fixing structure 4 disposed on the outer mold 2 and the inner mold 3, a through-hole mold 5 disposed on the side of the inner mold 3 facing the outer mold 2, and a fastening unit 6 disposed inside the inner mold 3.

[0029] Reference Figure 1 and Figure 2The base plate 1, outer mold 2, inner mold 3, fixing structure 4, and through-hole mold 5 are typically made of steel, which can withstand the enormous pressure during concrete pouring and the impact of the vibrator. The outer mold 2 is set on the base plate 1, the inner mold 3 is set inside the outer mold 2, the fixing structure 4 is set on top of the outer mold 2 and the inner mold 3 and is used to position the outer mold 2 and the inner mold 3. The through-hole mold 5 is fixedly installed on the outside of the inner mold 3 by a fastening unit 6. The fastening unit 6 is fixedly connected inside the inner mold 3 and located in the inner cavity of the through-hole mold 5. The through-hole mold 5 is fixedly connected to one of the fastening units 6, which achieves the effect of flexibly adjusting the through-hole size and improving the versatility of the mold.

[0030] Reference Figure 2 and Figure 3 A reinforcing member 7 is welded into the through-hole mold 5. The reinforcing member 7 includes a first reinforcing rib 701. A connecting plate 8 is welded to one end of the through-hole mold 5, and a waist-shaped hole 9 is formed in the connecting plate 8. The first reinforcing rib 701 is generally made of metal, such as angle steel, and is formed into a grid structure by welding to enhance the structural strength of the through-hole mold 5 and prevent the through-hole mold 5 from deforming during the casting process. When installing the through-hole mold 5, the fastening unit 6 passes through the waist-shaped hole 9 inside the connecting plate 8 to fix the through-hole mold 5 to the outside of the inner mold 3.

[0031] Reference Figure 3 and Figure 4 The inner mold 3 is internally fixedly connected with a fastening unit 6, which includes a nut 601 and a fastening bolt 602, which are threaded together. When installing the through-hole mold 5, the side of the through-hole mold 5 with the connecting plate 8 welded on it abuts against the outer side of the inner mold 3. Then, the fastening bolt 602 is passed through the oblong hole 9 inside the connecting plate 8, screwed into the pre-welded nut 601 in the inner mold 3, and tightened to fix the through-hole mold 5 to the outer side of the inner mold 3. There are at least two fastening units 6, allowing for the replacement of through-hole molds 5 of different sizes while ensuring a more secure fixation. By adjusting the position of the fastening bolt 602 in the oblong hole 9, fine-tuning of the through-hole mold 5 can be achieved, further improving the accuracy of the through hole.

[0032] Reference Figure 1 , Figure 3 and Figure 5 A limiting block 10 is welded onto the base plate 1. The outer mold 2 is rotatably connected to the limiting block 10 via a pin. A second reinforcing rib 11 is welded to the side of the outer mold 2 away from the inner mold 3. The limiting block 10 is generally made of the same material as the base plate 1 and is fixed to the base plate 1 by welding. The limiting block 10 can limit the rotation angle of the outer mold 2 to prevent the outer mold 2 from falling and injuring workers during installation. The second reinforcing rib 11 is generally made of metal strips, such as steel bars, welded into a grid or strip shape to enhance the structural strength of the outer mold 2 and prevent deformation during the pouring process.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The inner mold 3 is welded with a lifting lug 12 at the end away from the base plate 1, and the lifting lug 12 has a lifting hole 13 inside. When assembling the inner mold 3, during the mold assembly stage, since the inner mold 3 is large in volume and heavy in weight, the hook of the lifting equipment or a high-strength lifting rope can be passed through the lifting hole 13 of the lifting lug 12 to lift the inner mold 3, so as to facilitate the assembly of the inner mold 3.

[0034] Reference Figure 1 and Figure 6 The fixing structure 4 includes a first connecting rod 401 and a second connecting rod 402 that are bolted to the inner mold 3 and the outer mold 2. During assembly, the first connecting rod 401 is first bolted to the top of the outer mold 2 and the inner mold 3, and then the second connecting rod 402 is bolted to the top of the outer mold 2 and the inner mold 3. The first connecting rod 401 is located below the second connecting rod 402, and the first connecting rod 401 and the second connecting rod 402 are arranged crosswise. This crosswise arrangement can effectively position the outer mold 2 and the inner mold 3, ensuring the accurate relative position between them, thereby ensuring the final forming quality of the inspection well.

[0035] The implementation principle of the adjustable through-hole manhole mold in this application embodiment is as follows: When casting manholes, manholes with different through-hole diameters can be cast according to actual construction needs. First, one end of the through-hole mold 5 with the connecting plate 8 welded on it abuts against the outside of the inner mold 3. Then, the fastening bolt 602 passes through the waist-shaped hole 9 inside the connecting plate 8 and is threadedly connected to the nut 601 welded in the inner mold 3, fixing the through-hole mold 5 to the outside of the inner mold 3. The design of the waist-shaped hole 9 also allows for fine adjustment of the position of the through-hole mold 5 before fixing, further ensuring the through-hole forming accuracy. When it is necessary to change to a through-hole mold 5 of a different diameter, the fastening bolt 602 is rotated in the opposite direction until the fastening bolt 602 disengages from the nut 601, and the through-hole mold 5 is removed. Replace the through-hole mold 5 with one of suitable size. After replacing it with a through-hole mold 5 of the appropriate size, select the fastening unit 6 at the corresponding position to complete the fixation. When assembling the inspection well mold, first place the base plate 1 on the horizontal ground, and connect the outer mold 2 to the limiting block 10 by means of a pin. The limiting block 10 can limit the rotation angle of the outer mold 2 and prevent the outer mold 2 from falling off and injuring the workers. Then, use a rope or hook to pass through the lifting lug 12 to lift the assembled inner mold 3 above the base plate 1. Fix the inner mold 3 and the outer mold 2 by means of the first connecting rod 401 and the second connecting rod 402. The first connecting rod 401 and the second connecting rod 402 control the distance between the outer mold 2 and the inner mold 3 and provide support for the inner mold 3.

[0036] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A manhole mold with adjustable through-hole, characterized in that: The system includes a base plate (1), on which an outer mold (2) is provided. An inner mold (3) is provided inside the outer mold (2). A fixing structure (4) is provided on the outer mold (2) and the inner mold (3). The fixing structure (4) is used to position the outer mold (2) and the inner mold (3). A through-hole mold (5) is provided on the side of the inner mold (3) facing the outer mold (2). A fastening unit (6) for assembling and disassembling the through-hole mold (5) is fixedly connected inside the inner mold (3). The fastening unit (6) is located in the inner cavity of the through-hole mold (5). The number of fastening units (6) is at least two. The through-hole mold (5) is fixedly connected to one of the fastening units (6).

2. The manhole mold with adjustable through-hole according to claim 1, characterized in that: The through-hole mold (5) is welded with a reinforcing member (7) to enhance the structural strength of the through-hole mold (5). A connecting plate (8) is welded to one end of the through-hole mold (5) near the inner mold (3). The connecting plate (8) has a waist-shaped hole (9) for installing the fastening unit (6).

3. The manhole mold with adjustable through-hole according to claim 2, characterized in that: The reinforcing member (7) includes a plurality of first reinforcing ribs (701), which are in the shape of a grid and welded to the inner wall of the through hole mold (5).

4. The manhole mold with adjustable through-hole according to claim 2, characterized in that: The fastening unit (6) includes a nut (601) welded to the outer wall of the inner mold (3) and a fastening bolt (602) passing through the waist-shaped hole (9), wherein the fastening bolt (602) is threadedly connected to the nut (601).

5. The manhole mold with adjustable through-hole according to claim 1, characterized in that: A limiting block (10) is welded on the base plate (1), and the outer mold (2) is rotatably connected to the limiting block (10). The limiting block (10) is used to restrict the outer mold (2) from flipping.

6. The manhole mold with adjustable through-hole according to claim 1, characterized in that: The outer mold (2) is welded with a second reinforcing rib (11) on the side away from the inner mold (3) to enhance the structural strength of the outer mold (2).

7. The manhole mold with adjustable through-hole according to claim 1, characterized in that: The inner mold (3) is welded with a lifting lug (12) for hoisting the inner mold (3) at one end away from the base plate (1). The lifting lug (12) has a lifting hole (13) for threading ropes or hooks.

8. The manhole mold with adjustable through-hole according to claim 1, characterized in that: The fixed structure (4) includes a first connecting rod (401) and a second connecting rod (402). The first connecting rod (401) and the second connecting rod (402) are both fixedly connected to the inner mold (3) and the outer mold (2). The first connecting rod (401) and the second connecting rod (402) are arranged crosswise.

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