Integrated prefabricated shaft mold with steps

Abstract

The utility model discloses an integrated prefabricated shaft mold with a step. The integrated prefabricated shaft mold comprises an inner mold, a step mold, an inner mold base, an outer mold and an upper flange, a step mold is arranged on the inner mold, and the inner mold is fixed on an inner mold base; a plurality of outer molds can be spliced and then sleeved on the inner mold and the inner mold base, and the outer molds and the inner mold base are oppositely pulled and limited; and the upper flanges are fixed at the top ends of the outer molds. According to the mold, the prefabricated shaft with the step can be integrally formed, the step that a traditional shaft step needs secondary installation is avoided, on-site drilling is not needed, the construction efficiency is remarkably improved, and the labor intensity of workers is reduced; meanwhile, the problem that the shaft structure is damaged due to drilling is avoided, the overall strength of the shaft is enhanced, and the leakage risk of the shaft wall is reduced; according to the prefabricated shaft poured by the mold, joints and weak points of the prefabricated shaft and the step are reduced, and the situation that the step is loosened or the shaft wall is damaged is not prone to occurring.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection wells and related accessory devices, in particular to an integrated prefabricated wellbore mould with steps. Background Art

[0002] In municipal engineering, inspection wells are often used for maintenance and inspection of drainage and sewage systems. Traditional prefabricated wells, cast from molds, are often used as inspection wells. The steps within the wells are often made of cast iron and are installed in a secondary manner. This approach presents numerous practical problems.

[0003] First, since the prefabricated wellbore does not have reserved holes, it must be drilled on site. This will not only damage the wellbore structure and affect its overall strength and durability, but also easily cause water leakage in the well wall, which in turn causes the backfill material around the well to become empty, affecting the quality of the roadbed.

[0004] Secondly, the installation accuracy of cast iron treads has a direct impact on their stability and durability in later use. However, controlling the installation position and spacing at the construction site, especially the vertical and horizontal spacing, is relatively difficult, which increases the complexity and cost of construction.

[0005] In addition, cast iron steps are installed in rainwater wells and sewage wells, exposed to corrosive gases for a long time, and are prone to rust, which greatly shortens their service life and increases the frequency and cost of maintenance and replacement. Utility Model Content

[0006] The main purpose of the utility model is to provide an integrated prefabricated well shaft mold with steps, which has good quality of cast prefabricated well shaft and is easy to construct and install.

[0007] The utility model provides an integrated prefabricated wellbore mold with steps, which includes an inner mold, a step mold, an inner mold base, an outer mold and an upper rib; the step mold is arranged on the inner mold, and the inner mold is fixed on the inner mold base; multiple outer molds can be spliced ​​and placed on the inner mold and the inner mold base, and the outer mold and the inner mold base are pulled against each other to limit the position; the upper rib is fixed to the top of each outer mold.

[0008] In one embodiment of the above mold, the inner mold is a cylinder with a cylindrical outer surface formed by splicing three curved panels; the top, bottom and side surfaces of the curved panels are provided with ribs.

[0009] In one embodiment of the above mold, the step mold is a rectangular block, which is fixedly arranged in a circle around the outer surface of the inner mold at fixed intervals, and is arranged in multiple rows at fixed intervals along the vertical direction of the inner mold.

[0010] In one embodiment of the above mold, the bottom end of the step mold has wavy patterns.

[0011] In one embodiment of the above-mentioned mold, the inner mold base is a two-level frustum with a rib plate between the two levels; the top frustum of the inner mold base has a circle of positioning holes corresponding to the rib plate at the bottom end of the inner mold; and multiple groups of ear seats are arranged on the side of the bottom frustum of the inner mold base at fixed intervals.

[0012] In one embodiment of the above-mentioned mold, the outer mold is provided with three identical pieces, and the three outer molds can be spliced ​​into a cylinder with a cylindrical inner surface; the top, bottom and side surfaces of the outer mold are provided with ribs.

[0013] In one embodiment of the above-mentioned mold, a pulling block is provided at the bottom end of the outer mold, and the pulling block includes a fixed seat and a pull rod; the fixed seat is fixed to the rib plate at the bottom end of the outer mold, and the tail of the pull rod passes through the fixed seat and extends toward the base of the inner mold, and the head of the pull rod is threadedly connected with a bolt, and the bolt rests on the fixed seat; the tail of the pull rod is hinged to the ear seat of the inner mold base.

[0014] In one embodiment of the above mold, the width of the step mold is smaller than the distance between the inner mold and the outer mold.

[0015] In one embodiment of the above-mentioned mold, a demolding assembly is provided on the outer mold, and the demolding assembly includes a connecting frame, a pulley and a track; one end of the connecting frame is welded to the outer surface of the outer mold, and the other end of the connecting frame is provided with a motorized pulley, and the track is fixed on the ground; two sets of pulleys are also provided on the bottom end rib of the outer mold, and a guide rail is provided under the pulley, and the direction of the guide rail is the same as that of the track.

[0016] In one embodiment of the above-mentioned mold, the bottom plate of the upper rib is a horizontal circular baffle, the inner side of the upper rib is a vertical circular ring, and the diameter of the inner side is the same as the inner ring diameter of the bottom plate; a rib plate is provided between the bottom plate and the inner side; corresponding holes are opened on the bottom plate of the upper rib and on the top rib plate of the outer mold.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. This mold can form a prefabricated shaft with steps in one piece, avoiding the need for secondary installation of traditional shaft steps and eliminating the need for on-site drilling. This significantly improves construction efficiency and reduces labor intensity. It also avoids damage to the shaft structure caused by drilling, enhances the overall strength of the shaft, and reduces the risk of well wall leakage.

[0019] 2. The prefabricated wellbore cast by this mold reduces the joints and weak points with the steps, making it less likely for the steps to loosen or the wellbore wall to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the inner mold.

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the inner mold base.

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the Chinese and foreign molds.

[0024] Figure 5 for Figure 4 Schematic diagram of the structure of the pulling blocks at the bottom ends of the middle and outer molds.

[0025] Figure 6 for Figure 1 Schematic diagram of the structure of the demoulding component.

[0026] Figure 7 for Figure 1 Schematic diagram of the structure of the middle and upper rib.

[0027] Figure 8 This is a structural schematic diagram of an integrated prefabricated shaft with steps produced using this mold. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the relevant technical solutions. Obviously, the embodiments described are only some embodiments, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1 As shown, the integrated prefabricated wellbore mold with steps disclosed in this embodiment includes an inner mold 1, a step mold, an inner mold base 3, an outer mold 4, a demoulding assembly 5 and an upper rib 6.

[0030] like Figure 2 As shown, the inner mold 1 is a cylindrical body made of three curved panels. The top, bottom, and sides of the curved panels are reinforced with ribs. The side ribs of each curved panel are connected and fixed with bolts after contact, so that there is no obvious gap between the panels.

[0031] The tread mold is a rectangular block, fixed at regular intervals around the outer surface of the inner mold. Multiple rows of treads are also arranged vertically along the inner mold at regular intervals. The inside of the tread mold is open, and the inner surface has curved ribs that fit the inner mold. Holes are drilled in the ribs and at corresponding locations on the inner mold. Bolts are used to connect the two and secure them together, ensuring no noticeable gap between them.

[0032] The bottom of the step mold has a non-slip wavy pattern.

[0033] like Figure 3 As shown, the inner mold base 3 is a two-stage frustum with reinforcing ribs spaced at regular intervals between the two stages. The top frustum of the inner mold base has a circle of positioning holes that correspond to the ribs at the bottom of the inner mold 1. Once the inner mold and the inner mold base are butted together, bolts are used to secure them together, ensuring no noticeable gap between them. Multiple sets of lugs are positioned at regular intervals on the side of the bottom frustum of the inner mold base.

[0034] like Figure 4 As shown, the outer mold 4 is provided with three identical pieces, which can be spliced ​​together to form a barrel with a cylindrical inner surface. The top, bottom and sides of the outer mold are reinforced with ribs. After the side ribs of each outer mold contact each other, they are connected and fixed with bolts to ensure that there is no obvious gap between the panels.

[0035] like Figure 5 As shown, a tension block 41 is provided at the bottom of the outer mold 4. The tension block comprises a fixed seat and a tie rod. The fixed seat is welded to the rib plate at the bottom of the outer mold 4. The tail of the tie rod extends through the fixed seat toward the inner mold base. The head of the tie rod is threaded with a bolt, which abuts against the fixed seat. The tail of the tie rod can be inserted into the ear seat of the inner mold base 3 and is hingedly fixed by the bolt group.

[0036] After splicing the three outer molds together, put them on the outside of the inner mold and the inner mold base. Connect the pulling blocks of each outer mold with the ears of the corresponding inner mold base. After hingedly fixing the pull rod and the ears, rotate the bolts on the pull rod head to tighten the outer mold to the inner mold base and finally make sure there is no obvious gap between the outer mold and the inner mold base.

[0037] The width of the step mold is smaller than the distance between the inner mold and the outer mold.

[0038] like Figure 6 As shown, the demoulding assembly 5 includes a connecting frame 51 , pulleys and rails 52 .

[0039] One end of the connecting frame 51 is welded to the outer surface of the outer mold 4, and the other end of the connecting frame is provided with a motorized pulley. The track is fixed on the ground, and the pulley slides back and forth in the track to drive the outer mold to move synchronously.

[0040] Two sets of pulleys are further provided on the bottom rib of the outer mold 4 , and guide rails are provided under the pulleys, and the direction of the guide rails is the same as that of the track 52 .

[0041] The demoulding component 5 and the pulley group at the bottom of the outer mold are provided to assist the outer mold in demoulding and subsequent upper molding after the pouring is completed, thereby improving the convenience of using the mold.

[0042] like Figure 7As shown, the bottom plate of the upper rib 6 is a horizontal circular ring, while the inner edge of the upper rib is a vertical circular ring with the same diameter as the inner ring of the bottom plate. A rib is provided between the bottom plate and the inner edge. Corresponding holes are provided on the bottom plate of the upper rib and on the top rib of the outer mold. Bolts are used to connect the two and secure them together, ensuring no noticeable gap between them.

[0043] The specific steps for using this mold to produce an integrated prefabricated shaft with steps are as follows:

[0044] 1. Install the inner mold and fix the inner mold to the inner mold base;

[0045] 2. Tie the steel bars and determine their positions;

[0046] 3. Close the outer mold and fasten the outer mold to the inner mold base through the tension block;

[0047] 4. Pour concrete to the top of the outer formwork, then install the upper retaining edge and fasten it to the outer formwork;

[0048] 5. Finally, pour the concrete until the upper retaining edge is smooth;

[0049] 6. After static solidification, the Figure 8 An integrated prefabricated shaft with steps is shown.

[0050] The advantages of the integrated prefabricated shaft with steps produced by this mold are:

[0051] 1. This mold can form a prefabricated wellbore with steps in one piece, avoiding the need for secondary installation of traditional wellbore steps and eliminating the need for on-site drilling, which significantly improves construction efficiency and reduces labor intensity. It also avoids damage to the wellbore structure caused by drilling, enhances the overall strength of the wellbore, and reduces the risk of wellbore wall leakage.

[0052] 2. The prefabricated wellbore cast by this mold reduces the joints and weak points with the steps, making it less likely for the steps to loosen or the wellbore wall to be damaged.

[0053] 3. The tread surface adopts an anti-slip design, which improves the anti-slip performance during use, reduces the risk of personnel slipping when moving up and down in the inspection well, and enhances safety during construction and use.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An integrated prefabricated shaft mold with steps, characterized by: It includes an inner mold, a step mold, an inner mold base, an outer mold and an upper rib; a step mold is arranged on the inner mold, and the inner mold is fixed on the inner mold base; multiple outer molds can be spliced ​​and placed on the inner mold and the inner mold base, and the outer mold and the inner mold base are pulled against each other to limit the position; the upper rib is fixed on the top of each outer mold.

2. The integrated prefabricated shaft mold with steps according to claim 1, characterized in that: The inner mold is a cylinder body with a cylindrical outer surface formed by splicing three curved panels; the top, bottom and side surfaces of the curved panels are all provided with ribs.

3. The integrated prefabricated shaft mold with steps according to claim 1, characterized in that: The step mold is a rectangular block, which is fixedly arranged in a circle around the outer surface of the inner mold at fixed intervals, and is also arranged in multiple rows at fixed intervals along the vertical direction of the inner mold.

4. The integrated prefabricated shaft mold with steps according to claim 3, characterized in that: The bottom end of the step mold is wavy.

5. The integrated prefabricated shaft mold with steps according to claim 2, characterized in that: The inner mold base is a two-stage frustum with a rib plate between the two stages; the top frustum of the inner mold base has a circle of positioning holes corresponding to the rib plate at the bottom end of the inner mold; and multiple groups of ear seats are arranged on the side of the bottom frustum of the inner mold base at fixed intervals.

6. The integrated prefabricated shaft mold with steps according to claim 5, characterized in that: The outer mold is provided with three identical pieces, which can be spliced ​​into a cylinder with a cylindrical inner surface; the top, bottom and side surfaces of the outer mold are all provided with ribs.

7. The integrated prefabricated shaft mold with steps according to claim 5, characterized in that: A pulling block is provided at the bottom end of the outer mold, and the pulling block includes a fixed seat and a pulling rod; the fixed seat is fixed to the rib plate at the bottom end of the outer mold, and the tail of the pulling rod passes through the fixed seat and extends toward the inner mold base, and the head of the pulling rod is threadedly connected with a bolt, and the bolt rests on the fixed seat; the tail of the pulling rod is hinged to the ear seat of the inner mold base.

8. The integrated prefabricated shaft mold with steps according to claim 1, characterized in that: The width of the step mold is smaller than the interval between the inner mold and the outer mold.

9. The integrated prefabricated shaft mold with steps according to claim 1, characterized in that: The outer mold is provided with a demoulding assembly, which includes a connecting frame, a pulley and a track; one end of the connecting frame is welded to the outer surface of the outer mold, and the other end of the connecting frame is provided with a motorized pulley, and the track is fixed on the ground; two sets of pulleys are also provided on the bottom end rib plate of the outer mold, and a guide rail is provided under the pulley, and the direction of the guide rail is the same as that of the track.

10. The integrated prefabricated shaft mold with steps according to claim 1, characterized in that: The bottom plate of the upper rib is a horizontal circular baffle, and the inner side of the upper rib is a vertical circular ring, the diameter of the inner side is the same as the inner ring diameter of the bottom plate; a rib is provided between the bottom plate and the inner side; corresponding holes are opened on the bottom plate of the upper rib and on the top rib of the outer mold.

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