Precise positioning tool and assembly method for prefabricated pipe gallery embedded part

Abstract

The application discloses a prefabricated pipe gallery pre-embedded part precise positioning tool and an assembling method, the tool comprises a sleeve type pre-embedded part, a blocking steel ring, pre-embedded part closing bolts and matched nuts, a positioning assembling steel plate, an assembling screw rod and matched nuts. The assembling method comprises a hole site forming mold opening and welding screw rod operation, a forming mold closing, a sleeve type pre-embedded part installation, a prefabricated pipe gallery pouring and an auxiliary matched tool removal. The sleeve type pre-embedded part is embedded into the forming mold by the assembling mode instead of welding, the phenomenon that the pre-embedded part is disabled due to the concrete flowing into the pre-embedded part during the forming process is avoided, the flatness of the pre-embedded part end face and the prefabricated pipe gallery inner surface is guaranteed, and the precision of the relative position between the pre-embedded parts is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of urban underground comprehensive pipe gallery technologies, especially a kind of prefabricated pipe gallery embedded part precision positioning tool and assembly method. BACKGROUND

[0002] Urban underground comprehensive pipe gallery is a kind of underground space constructed in relatively shallow stratum in city, serves for city municipal pipe network engineering, integrates power, communication, gas, heating, water supply and drainage various pipelines, is the "lifeline" to guarantee modern city normal operation.The traditional pipe gallery construction method uses open cut cast-in-place method, which has been gradually replaced by pipe gallery prefabricated assembly process.Both cast-in-place pipe gallery or prefabricated pipe gallery has the assembly of embedded part, to be used for fixed installation pipeline, equipment etc.in the subsequent process of pipe gallery putting into use.

[0003] The assembly method of traditional prefabricated pipe gallery embedded part is to weld embedded part in prefabricated pipe gallery reinforcement cage, and pour concrete after forming moulding jig is combined.This process has errors in the process of reinforcement cage binding and welding, which leads to poor fit between embedded part end face and inner wall of prefabricated pipe gallery forming moulding jig, and the problem that concrete covers embedded part end face or even flows into embedded part during pouring stage, resulting in failure of prefabricated pipe gallery embedded part after forming.

[0004] Therefore, solving the problem of embedded part failure after pouring and further improving the position accuracy of embedded part is an important link of prefabricated pipe gallery process optimization.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The purpose of the present application is to provide a prefabricated pipe gallery embedded part precision positioning tool and assembly method to solve the above technical problems in the prior art.

[0007] The purpose of the present application is achieved by the following technical solutions:

[0008] The prefabricated pipe gallery embedded part precision positioning tool of the present application comprises sleeve type embedded part, barrier steel ring, embedded part closure bolt and its matching nut, positioning assembly steel plate, assembly screw and its matching nut.

[0009] The positioning assembly steel plate is installed on the surface of forming moulding jig by assembly screw and its matching nut, the sleeve type embedded part and the barrier steel ring are in concentric position and fixed by embedded part closure bolt and its matching nut, and the embedded part closure bolt, the barrier steel ring and the sleeve type embedded part are installed in the mounting hole of the positioning assembly steel plate.

[0010] The prefabricated pipe gallery embedded part precision positioning tool realizes the prefabricated pipe gallery embedded part precision positioning assembly method, and the assembly method comprises the following steps:

[0011] Step one: first make the forming mold open hole and welding screw rod operation, after the prefabricated pipe gallery steel reinforcement cage hoisting in place, forming mold closing and the steel reinforcement cage completely surrounded, steel reinforcement cage can not be interfered with the above opening hole for installing the embedded part, if there is interference need to fine-tune the position of the steel reinforcement cage, make all the reserved hole gap between the corresponding reinforcement;

[0012] Step two: install the barrier steel ring, embedded part closure bolt and matching nut, positioning assembly steel plate, assembly screw rod and matching nut, so that the sleeve type embedded part is accurately positioned;

[0013] Step three: pouring concrete in the sealed mold, making the steel reinforcement cage, sleeve type embedded part and concrete integrally formed and curing;

[0014] Step four: after the prefabricated pipe gallery is formed, the sleeve type embedded part is left in the prefabricated pipe gallery and the forming mold is unfolded, and the auxiliary positioning matching tooling is removed.

[0015] Compared with the prior art, the prefabricated pipe gallery embedded part accurate positioning tooling and assembly method provided by the present application adopts positioning installation instead of welding process, which fundamentally solves the problems existing in the prior art and improves the position accuracy of the embedded part. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The prefabricated pipe gallery embedded part accurate positioning tooling installation schematic diagram provided for the embodiment of the present application;

[0017] Figure 2 The prefabricated pipe gallery embedded part accurate positioning tooling exploded view provided for the embodiment of the present application;

[0018] Figure 3-1 、 Figure 3-2 The sleeve type embedded part and its cross-sectional structure diagram provided for the embodiment of the present application;

[0019] Figures 4-1 to 4-5 The prefabricated pipe gallery embedded part positioning assembly method process schematic diagram provided for the embodiment of the present application;

[0020] Figure 5 The prefabricated pipe gallery embedded part accurate positioning tooling assembly drawing provided for the embodiment of the present application.

[0021] In the drawings:

[0022] 1-steel reinforcement cage; 2-forming mold (partly shown); 3-prefabricated pipe gallery embedded part accurate positioning tooling; 3A-sleeve type embedded part; 3B-assembly screw rod; 3C-barrier steel ring; 3D-embedded part closure bolt; 3E-positioning assembly steel plate; 3F-nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and do not constitute a limitation of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0024] First, the terms possibly used herein are described as follows:

[0025] The term "and / or" means either of the two or both, for example, X and / or Y means three cases including "X" or "Y" or "X and Y".

[0026] The terms "include", "contain", "have", "possess" or other similar semantic descriptions should be interpreted as non-exclusive inclusion. For example, including a technical feature element (such as raw materials, components, ingredients, carriers, dosage forms, materials, sizes, parts, components, mechanisms, devices, steps, processes, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or articles, etc.) should be interpreted as not only including the explicitly listed technical feature element, but also including other technical feature elements not explicitly listed in the art.

[0027] The term "consisting of" means excluding any technical feature element not explicitly listed. If this term is used in a claim, the term will make the claim closed, so that it does not contain technical feature elements other than the explicitly listed technical feature elements, except for conventional impurities related thereto. If the term only appears in a certain clause of the claim, it is only limited to the elements explicitly listed in that clause, and the elements described in other clauses are not excluded from the overall claim.

[0028] Unless otherwise explicitly specified or limited, the terms "mount", "connect", "connect", "fix", and the like should be broadly understood, for example: can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be internal communication of two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in this text can be understood according to the specific circumstances.

[0029] The terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of description and simplification of description, and do not mean that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting herein.

[0030] The contents not described in detail in the embodiments of the present application belong to the prior art known to those skilled in the art. If no specific conditions are indicated in the embodiments of the present application, the conditions are performed according to the conventional conditions in the art or the conditions recommended by the manufacturer. If no manufacturer is indicated for the reagents or instruments used in the embodiments of the present application, they are all conventional products that can be obtained by market purchase.

[0031] The prefabricated pipe gallery pre-embedded part precision positioning tool of the present application comprises a sleeve type pre-embedded part, a barrier steel ring, a pre-embedded part closing bolt and its matching nut, a positioning assembly steel plate, an assembly screw rod and its matching nut.

[0032] The positioning assembly steel plate is installed on the surface of the forming mold by the assembly screw rod and its matching nut, the sleeve type pre-embedded part and the barrier steel ring are in concentric position and are fixed by the pre-embedded part closing bolt and its matching nut, and the pre-embedded part closing bolt, the barrier steel ring and the sleeve type pre-embedded part are installed in the mounting hole of the positioning assembly steel plate.

[0033] The forming mold is provided with a through hole matched with the sleeve type pre-embedded part in clearance, and the assembly screw rod is welded according to the position of the positioning assembly steel plate.

[0034] The sleeve type pre-embedded part is provided with an internal thread matched with the pre-embedded part closing bolt.

[0035] The outer diameter of the barrier steel ring is equal to the outer diameter of the sleeve type pre-embedded part, and the inner diameter of the barrier steel ring is threadedly matched or light hole matched with the screw rod part of the pre-embedded part closing bolt.

[0036] The left and right symmetrical long waist-shaped holes for positioning are arranged on both sides of the pre-embedded part mounting hole of the assembly steel plate, the position of the long waist-shaped hole matches the welding position of the assembly screw rod on the forming mold, the upper part of the mounting hole is provided with an opening, and the lower part is provided with an adjusting groove.

[0037] The inner diameter of the mounting hole is greater than or equal to the outer diameter of the barrier steel ring, the width of the adjusting groove is less than the outer diameter of the barrier steel ring, and the length of the barrier steel ring is equal to the thickness of the forming mold.

[0038] The prefabricated pipe gallery embedded part precision positioning tool realizes the prefabricated pipe gallery embedded part precision positioning assembly method, and comprises the following steps.

[0039] Step one: first, set the hole position and weld the screw rod, then assemble the mold and completely surround the reinforcement cage after the reinforcement cage is hoisted into position, the reinforcement cage cannot interfere with the hole position for installing the embedded part, if there is interference, the position of the reinforcement cage needs to be adjusted, so that the gap between all reserved holes and the reinforcement is adjusted.

[0040] Step two: install the blocking steel ring, the embedded part closing bolt and the matching nut, the positioning assembly steel plate, the assembly screw rod and the matching nut, and accurately position the sleeve type embedded part;

[0041] Step three: pour concrete in the sealed mold to make the reinforcement cage and the sleeve type embedded part integrally formed with the concrete and perform maintenance;

[0042] Step four: after the prefabricated pipe gallery is formed, the sleeve type embedded part is left in the prefabricated pipe gallery and the forming mold is unfolded, and the auxiliary positioning matching tool is removed.

[0043] The step two comprises the following sub-steps:

[0044] S1, the embedded part closing bolt with the blocking steel ring is screwed into the sleeve type embedded part preset position, the embedded part closing bolt matching nut end surface and the blocking steel ring end surface have a gap, and the gap length should not be less than the thickness of the positioning assembly steel plate;

[0045] S2, the positioning assembly steel plate is installed on the welded assembly screw rod through the two long waist-shaped holes, and the positioning assembly steel plate is adjusted up and down through the long waist-shaped holes;

[0046] S3, the embedded part closing bolt with the blocking steel ring installed in the sleeve type embedded part is fixed in the mounting hole on the positioning assembly steel plate, the sleeve type embedded part is placed in the forming mold, the positioning assembly steel plate is moved upward, the gap between the embedded part closing bolt matching nut end surface and the blocking steel ring end surface is matched in the adjusting groove of the assembly steel plate, and the matching nut is tightened, and after the positioning assembly steel plate is adjusted up and down, the assembly screw rod matching nut is tightened.

[0047] The step four comprises the following sub-steps:

[0048] S1, the assembly screw rod matching nut is removed, the embedded part closing bolt is removed, the blocking steel ring is removed, and the positioning assembly steel plate is taken out;

[0049] S2, the inner membrane of the forming mold is pulled out, the outer mold is unfolded, the prefabricated pipe gallery integrally formed with the sleeve type embedded part is moved, and subsequent maintenance or use in engineering is performed.

[0050] The prefabricated pipe gallery pre-embedded part precision positioning tool and assembly method of the embodiment of the application, the tool comprises a sleeve type pre-embedded part, a blocking steel ring, a pre-embedded part closing bolt and a matching nut, a positioning assembly steel plate, an assembly screw rod and a matching nut. The assembly method comprises a hole site opening and a welded screw rod operation of a forming mold, a forming mold closing, a sleeve type pre-embedded part installation, a prefabricated pipe gallery pouring, and an auxiliary matching tool removal. The sleeve type pre-embedded part is embedded in the forming mold by assembly instead of welding, the phenomenon that the pre-embedded part is disabled by concrete flowing into the pre-embedded part during the forming process is avoided, the flatness of the end surface of the pre-embedded part and the inner surface of the prefabricated pipe gallery is ensured, and the precision of the relative position between the pre-embedded parts is improved.

[0051] To sum up, the beneficial technical effects of the application are:

[0052] 1. The blocking steel ring and the pre-embedded part closing bolt are used, the problem that the raw material flows into the pre-embedded part during the concrete pouring forming process is effectively solved, and the problem that the pre-embedded part is disabled after forming is avoided.

[0053] 2. The assembly method is used instead of the welding process, the manual error during the welding process is avoided, and the end surface of the pre-embedded part and the end surface of the prefabricated pipe gallery after forming are flush.

[0054] 3. The matching tool design has an adjusting mechanism, the position of the pre-embedded part during the assembly process can be adjusted, the relative position precision of the pre-embedded parts is improved, and the use of the subsequent engineering is facilitated.

[0055] In order to more clearly show the technical solutions provided by the application and the technical effects generated, the following will describe the in detail with specific embodiments.

[0056] Embodiment 1

[0057] As Figures 1 to 5 shown:

[0058] First, referring to Figures 1 to 3-1 , Figure 3-2 , Figure 5 , it is the prefabricated pipe gallery pre-embedded part precision positioning tool of the application.

[0059] The prefabricated pipe gallery pre-embedded part precision positioning tool comprises a sleeve type pre-embedded part 3A, a blocking steel ring 3C, a pre-embedded part closing bolt 3D and a matching nut 3F, a positioning assembly steel plate 3E, an assembly screw rod 3B and a matching nut 3F, and has the following characteristics:

[0060] The positioning assembly steel plate 3E is installed on the surface of the forming mold 2 through the assembly screw rod 3B, the sleeve type pre-embedded part 3A and the blocking steel ring 3C are in concentric position and are fixed by the pre-embedded part closing bolt 3D, and the closing bolt 3D, the blocking steel ring 3C and the sleeve type pre-embedded part 3A are installed on the assembly steel plate 3E.

[0061] The forming jig 2 is provided with a clearance fit hole with a diameter of 26 mm for installing the embedded part according to the designed position of the embedded part, and the assembly screw rod 3B is welded in place according to the position of the positioning assembly steel plate 3E, so as to ensure that the center distance of the two assembly screw rods 3B is 110 mm, and the position accuracy of the positioning assembly steel plate on the surface of the forming jig is ensured.

[0062] The sleeve type embedded part 3A is provided with an M20 internal thread, which is used for fixing and installing pipelines, equipment and the like in subsequent engineering.

[0063] The embedded part closing bolt 3D is provided with an M20 external thread, which realizes cooperation with the internal thread of the sleeve type embedded part 3A.

[0064] The blocking steel ring 3C has an inner diameter of 20 mm, and an outer diameter equal to the outer diameter of the sleeve type embedded part 3A, both of which are 25 mm.

[0065] The positioning assembly steel plate 3E is provided with left-right symmetrical long strip-shaped waist-shaped holes for positioning, the position of which matches the welding position of the assembly screw rod 3B on the forming jig 2, the center distance is 110 mm, and a half-open embedded part mounting hole with a diameter of 26 mm is arranged in the middle, which is convenient for positioning of the embedded part closing bolt 3D, the sleeve type embedded part 3A and the blocking steel ring 3C, and a U-shaped adjusting groove with a diameter of 20 mm and a length of 10 mm is arranged below the embedded part mounting hole, which is used for adjusting the position of the embedded part, and is convenient for disassembling the overall tooling after the jig is disassembled.

[0066] Referring to Figures 4-1 to 4-5 , the application also discloses a precise positioning and assembling method for a prefabricated pipe gallery embedded part, and the method comprises the following steps.

[0067] Step one: first, perform the hole opening and screw welding operation of the forming jig 2, after the prefabricated pipe gallery reinforcement cage 1 is hoisted into position, the forming jig 2 is closed and the reinforcement cage 1 is completely surrounded. The reinforcement cage 1 cannot interfere with the above-mentioned hole opening for installing the embedded part, if there is interference, the position of the reinforcement cage 1 needs to be adjusted slightly, so that the gap between all the reserved holes and the reinforcement is matched.

[0068] Step two: install the blocking steel ring 3C, the embedded part closing bolt 3D, the matched nut 3F, the positioning assembly steel plate 3E, the assembly screw rod 3B and the matched nut 3F, so as to precisely position the sleeve type embedded part, which comprises the following sub-steps:

[0069] S1, the embedded part closing bolt 3D with the blocking steel ring 3C is screwed into the sleeve type embedded part to a preset position, the end surface of the embedded part closing bolt matched nut 3F is left with a gap from the end surface of the blocking steel ring 3C, and the length of the gap is not less than 10 mm of the thickness of the positioning assembly steel plate.

[0070] S2, the positioning assembly steel plate 3E is installed on the welded assembly screw rod 3B through the long waist-shaped hole on both sides, and the assembly screw rod is not tightened. The positioning assembly steel plate 3E can be adjusted up and down through the long waist-shaped hole.

[0071] S3, the embedded part closing bolt 3D is fixed in the embedded part mounting hole of the assembly steel plate 3E, and the sleeve type embedded part 3A is placed in the forming mold 2. The positioning assembly steel plate 3E is moved upward, and the end surface of the closing bolt nut 3F is matched with the end surface of the blocking steel ring 3C in the adjusting groove of the assembly steel plate 3E, and the nut 3F is tightened. After adjusting the position of the assembly steel plate 3E up and down, the assembly screw rod nut 3F is tightened. At this time, the positioning operation of the embedded part has been completed with the aid of the matched tooling, and the assembly drawing of the tooling and the embedded part is shown in Figure 5 .

[0072] Step three: pouring concrete in the sealed forming mold 2, so that the reinforcement cage 1, the sleeve type embedded part 3A and the concrete are integrally formed and cured.

[0073] Step four: after the prefabricated pipe gallery is formed, the sleeve type embedded part 3A is left in the prefabricated pipe gallery, and the forming mold 2 is unfolded, and the matched tooling for auxiliary positioning is removed, which includes the following sub-steps:

[0074] S1, the assembly screw rod nut 3F is removed, the embedded part closing bolt 3D is removed, the blocking steel ring 3C is removed, and the positioning assembly steel plate 3E is taken out.

[0075] S2, the inner membrane of the forming mold is extracted, the outer mold is unfolded, the prefabricated pipe gallery integrally formed with the sleeve type embedded part is moved, and subsequent curing or putting into engineering use is carried out.

[0076] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical range disclosed in the present application can be easily thought by those skilled in the art, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope of the claims. The information disclosed in the background section of this paper is only intended to deepen the understanding of the overall background technology of the present application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A method for realizing precise positioning and assembly of prefabricated pipe gallery embedded parts by using a prefabricated pipe gallery embedded part precise positioning tool, characterized in that: the prefabricated pipe gallery embedded part precise positioning tool comprises a sleeve type embedded part, a barrier steel ring, an embedded part sealing bolt and its matching nut, a positioning assembly steel plate, an assembly screw rod and its matching nut; the positioning assembly steel plate is installed on the surface of a forming mold by the assembly screw rod and its matching nut, the sleeve type embedded part and the barrier steel ring are in concentric position and are fixed by the embedded part sealing bolt and its matching nut, the embedded part sealing bolt, the barrier steel ring and the sleeve type embedded part are installed in the installation hole of the positioning assembly steel plate; the forming mold is provided with a through hole matched with the sleeve type embedded part in clearance, and the assembly screw rod is welded according to the position of the positioning assembly steel plate; the sleeve type embedded part is provided with an internal thread matched with the embedded part sealing bolt; the outer diameter of the barrier steel ring is equal to the outer diameter of the sleeve type embedded part, and the inner diameter of the barrier steel ring is threadedly matched or light hole matched with the screw rod part of the embedded part sealing bolt; the positioning long strip waist hole is symmetrically arranged on both sides of the embedded part installation hole of the assembly steel plate, the position of the long strip waist hole matches the welding position of the assembly screw rod on the forming mold, the upper part of the installation hole is provided with an opening, and the lower part is provided with an adjusting groove; the inner diameter of the installation hole is greater than or equal to the outer diameter of the barrier steel ring, the width of the adjusting groove is less than the outer diameter of the barrier steel ring, and the length of the barrier steel ring is equal to the thickness of the forming mold; the method comprises the following steps: Step one: first, perform the hole opening and screw welding operation of the forming mold, after the prefabricated pipe gallery reinforcement cage is hoisted into position, the forming mold is closed to completely surround the reinforcement cage, the reinforcement cage cannot interfere with the above-mentioned hole opening for embedded part installation, if there is interference, the position of the reinforcement cage needs to be adjusted slightly to make the gap between all reserved holes corresponding to the reinforcement; Step two: install the barrier steel ring, the embedded part sealing bolt and the matching nut, the positioning assembly steel plate, the assembly screw rod and the matching nut to precisely position the sleeve type embedded part; Step three: pour concrete in the sealed mold to make the reinforcement cage, the sleeve type embedded part and the concrete integrally formed and cured; Step four: after the prefabricated pipe gallery is formed, the sleeve type embedded part is left in the prefabricated pipe gallery, and the forming mold is unfolded to remove the auxiliary positioning tool. Step two comprises the following substeps: S1, the embedded part sealing bolt with the barrier steel ring is screwed into the sleeve type embedded part preset position, the embedded part sealing bolt matching nut end surface and the barrier steel ring end surface leave a gap, and the gap length should not be less than the thickness of the positioning assembly steel plate; S2, the positioning assembly steel plate is installed on the welded assembly screw rod through the long strip waist hole on both sides, and the positioning assembly steel plate is adjusted in position through the long strip waist hole. ​ ​ ​ ​ ​ 2. The method of claim 1, wherein, ​ ​ ​ S3, the installation hole of the blocking steel ring, sleeve type embedded part is fixed on the positioning assembly steel plate, the sleeve type embedded part is placed in the forming mold, the positioning assembly steel plate is moved upward, the gap between the end face of the embedded part closing bolt and the end face of the blocking steel ring is matched with the adjusting groove of the assembly steel plate, and the matched nut is tightened. After adjusting the position of the positioning assembly steel plate, the assembly screw matched nut is tightened.

3. The method of precision positioning and assembly of pre-fabricated pipe rack pre-embedded elements according to claim 2, characterized in that, The step four comprises the following sub-steps: S1, the assembly screw matched nut is removed, the embedded part closing bolt is removed, the blocking steel ring is removed, and the positioning assembly steel plate is taken out; S2, the inner membrane of the forming mold is extracted, the outer mold is unfolded, the prefabricated pipe gallery integrated with the sleeve type embedded part is shifted, and subsequent maintenance or use in engineering is carried out.

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