A kind of inspection well pipe forming mold

Abstract

The present invention relates to a manhole pipe forming mold, and relates to the technical field of manhole production, comprising a cylindrical mold with a hollow interior, the mold comprising a semicircular upper mold plate and a lower mold plate, the upper mold plate and the lower mold plate are buckled to form a mold, the mold inner cavity is fixed with multiple split rings at intervals along its length direction, the outer wall of the split ring is attached to the inner wall of the mold, and the central axes of the two are coaxially arranged. The present invention has the advantages of being able to produce multiple sections of manhole pipes at one time, the pipe specifications and lengths are adjustable, and the production efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of inspection well production, in particular to an inspection well pipe forming die. Background Art

[0002] Inspection wells are set up for the maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage, communication, cable TV, gas pipes, street light lines, etc., and are easy to install. They are generally set up at pipeline intersections, bends, places where pipe diameters or slopes change, and at regular intervals on straight pipe sections to facilitate regular inspection of auxiliary structures.

[0003] At present, inspection well construction generally utilizes prefabricated inspection well pipes to splice together, however, the existing prefabricated inspection well pipe forming mold can only produce one section of well pipe at a time, and the production efficiency is low. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a manhole pipe forming die, which has the function of being able to process multiple sections of prefabricated pipes at one time and has the advantage of high construction efficiency.

[0005] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0006] A mold for forming an inspection well pipe includes a mold that is cylindrical and hollow inside, the mold includes a semicircular upper mold and a lower mold, the upper mold and the lower mold are buckled together to form the mold, the mold inner cavity is fixedly provided with a plurality of split rings at intervals along its length direction, the outer wall of the split ring is fitted on the inner wall of the mold and the central axes of the two are coaxially arranged.

[0007] By adopting the above technical solution, when in use, the inspection well pipe is processed by the hanging roller process, and a section of prefabricated pipe can be processed between each two adjacent dividing rings, thereby realizing the function of processing multiple sections of prefabricated pipes at one time, which has the advantage of high construction efficiency.

[0008] In a preferred example, the present invention can be further configured as follows: one end of the split ring is provided with a first step groove connected to its inner ring along its circumferential direction, and the other end is provided with a second step groove connected to its outer ring along its circumferential direction, and the head and tail ends of the split ring can be spliced ​​together and matched in size.

[0009] By adopting the above technical solution, by opening the first step groove and the second step groove on the split ring, the head and tail ends of the split ring form a structure that can be spliced ​​with each other, so that when prefabricating the inspection well pipe, a socket structure can be formed at both ends of the well pipe, which is convenient for the installation of the inspection well pipe.

[0010] In a preferred example, the present invention can be further configured as follows: the split ring is provided with first countersunk holes radially penetrating the split ring at intervals along its circumferential direction, the inner wall of the mold is provided with second countersunk holes corresponding to the first countersunk holes, the first countersunk holes and the second countersunk holes are provided with internal threads, and the split ring is fixed to the mold by screws.

[0011] By adopting the above technical solution, by opening multiple groups of second countersunk holes at intervals on the mold, and using screws to detachably fix the split rings to the inner wall of the mold, on the one hand, it is convenient to disassemble and assemble the split rings, and on the other hand, the distance between the split rings can be adjusted, thereby realizing the processing of prefabricated pipes of different length specifications.

[0012] In a preferred example, the present invention can be further configured as follows: the upper template and the lower template are respectively fixed with docking plates that can fit together at the joints, the two docking plates are respectively provided with corresponding bolt holes, and the two docking plates are connected by locking bolts.

[0013] By adopting the above technical solution, the upper template and the lower template are fixed together by locking bolts, thereby ensuring the overall stability of the mold when processing the inspection well pipe.

[0014] In a preferred example, the present invention can be further configured as follows: a groove connected to the bolt hole is provided on the side of the docking plate facing away from the mold; one end of the locking bolt is hinged to the upper mold plate or the lower mold plate, and the other end is inserted into the bolt hole.

[0015] By adopting the above technical solution, the fixation between the upper and lower templates is facilitated, and the locking bolts are prevented from being lost when not in use.

[0016] In a preferred example, the present invention can be further configured as follows: annular ribs are fixedly provided on the outer wall of the mold, and a plurality of the annular ribs are spaced apart along the length direction of the mold, and the annular ribs include upper annular ribs fixedly provided on the upper template and lower annular ribs fixedly provided on the lower template, and the upper annular ribs correspond to the lower annular ribs one to one.

[0017] By adopting the above technical solution, the strength of the mold is increased and deformation thereof is avoided.

[0018] In a preferred example, the present invention can be further configured as follows: longitudinal ribs are fixedly provided on the outer wall of the mold along its length direction, a plurality of longitudinal ribs are arranged at intervals along the circumferential direction of the mold, and the longitudinal ribs pass through the annular ribs.

[0019] In a preferred example, the present invention can be further configured as follows: a hoisting hole is opened on the longitudinal reinforcement.

[0020] By adopting the above technical solution, the mold hoisting is convenient.

[0021] In a preferred example, the present invention can be further configured as follows: an annular end mold is respectively provided at both ends of the mold, the end mold is coaxially arranged with the mold, the inner diameter of the end mold is the same as the inner diameter length of the split ring, a second step groove matching the first step groove on the split ring is provided on the end mold close to the first step groove on the split ring, and a first step groove matching the second step groove is provided on the end mold close to the second step groove on the split ring.

[0022] By adopting the above technical solution, by setting the end mold, on the one hand, the two ends of the mold are supported to prevent it from deformation, and on the other hand, a space for casting the inspection well pipe is formed between the end mold and the dividing ring, thereby increasing the number of production sections of the inspection well pipe.

[0023] In a preferred example, the present invention can be further configured as follows: an annular groove is provided on the outer peripheral wall of the mold, and the ends of the upper template and the lower template are respectively fixed with clamping parts along the curvature direction of their inner rings, and the clamping parts are clamped into the annular groove.

[0024] By adopting the technical solution, disassembly and assembly are convenient.

[0025] In summary, the present invention includes the following beneficial technical effects:

[0026] By arranging a plurality of split rings at intervals in the mold and adopting the suspension roller process to process the inspection well pipe, a section of prefabricated pipe can be formed between each two adjacent split rings, thereby realizing the function of processing multiple sections of prefabricated pipes at one time, which has the advantage of high construction efficiency; and the distance between the split rings can be adjusted, thereby realizing the processing of prefabricated pipes of different length specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the mold;

[0028] Figure 2 It is a schematic cross-sectional view of the mold along its axis;

[0029] Figure 3 It is a schematic diagram of the connection structure between the split ring and the mold;

[0030] Figure 4 yes Figure 2 A magnified schematic diagram of part A;

[0031] Figure 5 yes Figure 1 Schematic diagram of the enlarged portion B.

[0032] In the figure, 1, mold; 11, upper template; 12, lower template; 13, annular rib; 14, longitudinal rib; 15, lifting hole; 2, split ring; 3, first step groove; 4, second step groove; 5, first countersunk hole; 6, second countersunk hole; 7, screw; 8, docking plate; 81, bolt hole; 82, groove; 83, locking bolt; 9, end mold; 91, annular groove; 92, clamping part. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 , is a manhole pipe forming mold disclosed in the present invention, comprising a mold 1, which is cylindrical and hollow inside and is made of 8mm steel plate. The mold 1 comprises an upper mold plate 11 and a lower mold plate 12, the cross-sections of the upper mold plate 11 and the lower mold plate 12 are semicircular, and the two are buckled together to form a cylindrical mold 1. A plurality of split rings 2 are fixedly arranged in the inner cavity of the mold 1 along its length direction at intervals, and the outer wall of the split ring 2 is attached to the inner wall of the mold 1 and the central axes of the two are coaxially arranged.

[0035] When in use, the inspection well pipe is processed by the hanging roller process, and a section of prefabricated pipe can be formed between each two adjacent split rings 2, thereby realizing the function of processing multiple sections of prefabricated pipes at one time, and having the advantage of high construction efficiency.

[0036] Reference Figure 2 A first step groove 3 connected to the inner ring is provided at one end of the split ring 2 along its circumferential direction, and a second step groove 4 connected to the outer ring is provided at the other end along its circumferential direction, and the head and tail ends of different split rings 2 can be spliced ​​together and matched in size. When the split ring 2 is installed, the first step groove 3 faces the same end of the mold 1. By providing the first step groove 3 and the second step groove 4 on the split ring 2, the head and tail ends of the split ring 2 form a structure that can be spliced ​​together, so that when the inspection well pipe is prefabricated, a socket structure can be formed at both ends of the well pipe, which is convenient for the installation of the inspection well pipe.

[0037] Reference Figure 3, the split ring 2 is provided with first countersunk holes 5 radially penetrating the split ring 2 in the first stepped groove 3 at even intervals along the circumferential direction thereof. In this solution, four first countersunk holes 5 are provided, but not limited to four, of which two first countersunk holes 5 are provided at positions corresponding to the upper template 11, and the other two first countersunk holes 5 are provided at positions corresponding to the lower template 12. Second countersunk holes 6 corresponding to the first countersunk holes 5 are provided on the inner walls of the upper template 11 and the lower template 12, respectively. Multiple groups of second countersunk holes 6 are provided at intervals along the length direction of the mold 1. Internal threads are provided in the first countersunk holes 5 and the second countersunk holes 6. The split ring 2 is fixed to the mold 1 by screws 7; when the split ring 2 is installed on the mold 1, the end of the screw 7 is embedded in the first countersunk hole 5 and is flush with the side wall of the first stepped groove 3, so as to avoid the first countersunk hole 5 affecting the quality of the prefabricated pipe. At the position where the split ring 2 is not installed on the mold 1, the screw 7 is screwed into the second countersunk hole 6 so that the end of the screw 7 is flush with the inner wall of the mold 1, so as to avoid the second countersunk hole 6 affecting the quality of the prefabricated pipe. By opening a plurality of sets of second countersunk holes 6 at intervals on the mold 1 and using screws 7 to detachably fix the split ring 2 to the inner wall of the mold 1, on the one hand, it is convenient to disassemble and assemble the split ring 2, and on the other hand, the distance between the split rings 2 can be adjusted, thereby realizing the processing of prefabricated pipes of different length specifications.

[0038] Reference Figure 2 and Figure 4 , an annular end mold 9 is provided at both ends of the mold 1, the end mold 9 is coaxially arranged with the mold 1, and the inner diameter of the end mold 9 is the same as the inner diameter length of the split ring 2, and the end mold 9 close to the first step groove 3 on the split ring 2 is provided with a second step groove 4 used in conjunction with it, and the end mold 9 close to the first step groove 3 on the split ring 2 is provided with a first step groove 3 used in conjunction with it, thereby forming a casting space for casting the inspection well pipe between the end mold 9 and the split ring 2, thereby increasing the number of sections of the mold 1 for producing the well pipe.

[0039] In addition, an annular groove 91 is opened on the outer wall of the mold 1 along its curvature, and a clamping portion 92 is integrally formed along the inner ring curvature direction at the end of the upper mold plate 11 and the lower mold plate 12. The clamping portion 92 is semi-annular and is respectively arranged on the upper mold plate 11 and the lower mold plate 12. When the upper mold plate 11 and the lower mold plate 12 are buckled, the two clamping portions 92 are spliced ​​to form a ring shape, and the clamping portion 92 is clamped into the annular groove 91, and the end mold 9 is respectively installed at the two ends of the mold 1.

[0040] Reference Figure 1 and Figure 5A butt plate 8 is welded at the joint of the upper template 11 and the lower template 12. The butt plate 8 is arranged along the length direction of the mold 1. When the upper template 11 and the lower template 12 are buckled together, the two butt plates 8 fit each other. Bolt holes 81 arranged coaxially are respectively provided on the two butt plates 8, and the two butt plates 8 are connected by a locking bolt 83. Furthermore, a groove 82 connected to the bolt hole 81 is provided on the side of the butt plate 8 facing away from the mold 1. One end of the locking bolt 83 is hinged on the outer wall arm of the upper template 11, and the other end can be inserted into the bolt hole 81 from the groove 82. It is convenient for fixing the upper and lower templates 12, and prevents the locking bolt 83 from being lost when not in use.

[0041] A reinforcing plate is welded and fixed between the butt plate 8 and the lower template 12 , and a plurality of reinforcing plates are arranged at intervals along the length direction of the lower template 12 .

[0042] Reference Figure 1 Furthermore, in order to increase the strength of the mold 1 and prevent it from deformation, annular ribs 13 are welded on the outer wall of the mold 1. The annular ribs 13 are evenly spaced in multiple directions along the length direction of the mold 1. The annular ribs 13 include upper annular ribs 13 welded on the upper mold plate 11 and lower annular ribs 13 arranged on the lower mold plate 12. The upper annular ribs 13 and the lower annular ribs 13 correspond to each other one by one, and the two ends of the upper annular ribs 13 and the lower annular ribs 13 are respectively welded to the butt plate 8. Longitudinal ribs 14 are welded on the outer wall of the mold 1 along its length direction. The longitudinal ribs 14 are evenly spaced in multiple directions along the circumferential direction of the mold 1. The longitudinal ribs 14 pass through the annular ribs 13 and are welded to the annular ribs 13.

[0043] In order to facilitate the hoisting of the mold 1 , hoisting holes 15 are opened on the longitudinal ribs 14 at both ends of the mold 1 .

[0044] The implementation principle of this embodiment is: according to the specification and length of the processed pipe, the split ring 2 is increased or decreased and the installation position of the split ring 2 is adjusted, the split ring 2 is fixed to the lower template 12 by screws 7, the upper template 11 is buckled with the lower template 12, and the split ring 2 is fixed to the upper template 11, and the mold 1 that has been hoisted and spliced ​​is inserted from one end onto the hanging roller to process the prefabricated pipe.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A manhole pipe forming die, characterized in that: The invention comprises a cylindrical mold (1) which is hollow inside, the mold (1) comprising a semicircular upper mold plate (11) and a lower mold plate (12), the upper mold plate (11) and the lower mold plate (12) being buckled together to form the mold (1), the inner cavity of the mold (1) being provided with a plurality of split rings (2) at intervals along its length direction, the outer wall of the split ring (2) being fitted on the inner wall of the mold (1), and the central axes of the two being coaxially arranged; One end of the split ring (2) is provided with a first stepped groove (3) connected to its inner ring along its circumferential direction, and the other end is provided with a second stepped groove (4) connected to its outer ring along its circumferential direction, and the head and tail ends of the split ring (2) can be spliced ​​to each other and have matching sizes; The split ring (2) is provided with first countersunk holes (5) radially penetrating the split ring (2) at intervals along its circumferential direction, the inner wall of the mold (1) is provided with second countersunk holes (6) corresponding to the first countersunk holes (5), the first countersunk holes (5) and the second countersunk holes (6) are provided with internal threads, and the split ring (2) is fixed to the mold (1) by screws (7); The upper template (11) and the lower template (12) are respectively fixed with butt joint plates (8) that can fit together at the joints, and the two butt joint plates (8) are respectively provided with corresponding bolt holes (81), and the two butt joint plates (8) are connected by locking bolts (83).

2. The inspection well pipe forming mold according to claim 1, characterized in that: A groove (82) communicating with the bolt hole (81) is provided on the side of the docking plate (8) facing away from the mold (1); one end of the locking bolt (83) is hinged on the upper mold plate (11) or the lower mold plate (12), and the other end is inserted into the bolt hole (81).

3. The inspection well pipe forming mold according to claim 2, characterized in that: An annular rib (13) is fixedly arranged on the outer wall of the mold (1), and a plurality of annular ribs (13) are arranged at intervals along the length direction of the mold (1). The annular ribs (13) include upper annular ribs (13) fixedly arranged on the upper mold plate (11) and lower annular ribs (13) fixedly arranged on the lower mold plate (12), and the upper annular ribs (13) and the lower annular ribs (13) correspond to each other one by one.

4. The inspection well pipe forming mold according to claim 3, characterized in that: The outer wall of the mold (1) is fixedly provided with longitudinal ribs (14) along its length direction. A plurality of longitudinal ribs (14) are arranged at intervals along the circumferential direction of the mold (1). The longitudinal ribs (14) pass through the annular ribs (13).

5. The inspection well pipe forming mold according to claim 4, characterized in that: The longitudinal rib (14) is provided with a hoisting hole (15).

6. The inspection well pipe forming mold according to claim 5, characterized in that: An annular end mold is respectively provided at both ends of the mold, and the end mold is coaxially arranged with the mold. The inner diameter of the end mold is the same as the inner diameter length of the split ring. A second step groove matching the first step groove on the split ring is provided on the end mold close to the first step groove on the split ring, and a first step groove matching the second step groove on the split ring is provided on the end mold close to the second step groove on the split ring.

7. The inspection well pipe forming mold according to claim 6, characterized in that: An annular groove is provided on the outer peripheral wall of the mold, and clamping parts are respectively fixedly provided at the ends of the upper mold plate and the lower mold plate along the inner ring curvature direction thereof, and the clamping parts are clamped into the annular groove.

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