CN218090936U

CN218090936U - Subway contact net basis preparation mould and pre-buried frock

Info

Publication number: CN218090936U
Application number: CN202221853869.7U
Authority: CN
Inventors: 郭恒; 任超; 李晓青; 卢小明; 余潇鹏; 王彬
Original assignee: China Railway 11th Bureau Group Co Ltd; China Railway 11th Bureau Group Electric Engineering Co Ltd
Current assignee: China Railway 11th Bureau Group Co Ltd; China Railway 11th Bureau Group Electric Engineering Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-12-20
Anticipated expiration: 2032-07-18

Abstract

The utility model relates to a subway contact net foundation manufacturing mould and a pre-buried tool, wherein the foundation manufacturing mould comprises two horizontal supporting beams which are arranged in parallel and two longitudinal supporting beams which are arranged in parallel, and the two ends of the horizontal supporting beams are respectively connected with the longitudinal supporting beams on the two sides; a plurality of mounting holes are formed in each of the two longitudinal supporting beams, and the number and the positions of the mounting holes are matched with foundation bolts of the embedded parts; the lengths of the two longitudinal supporting beams are both greater than the width of the embedded hole; the utility model discloses can carry out effective control to the pre-buried gesture of rag bolt, with rag bolt because of construction external force, the aversion control that concrete deformation external force caused in precision range, need not rectify rag bolt when the contact net pillar is established to the construction degree of difficulty is extremely low, site operation personnel accept simply to hand over the end alright skilled grasp the use skill, the use duration is short, the one-time survival of basic one-time use, the later stage need not maintain, only need contact net basis concrete possess after the certain strength tear the mould away and just can recycle.

Description

Subway contact net basis preparation mould and pre-buried frock

Technical Field

The utility model relates to a technical field of subway contact net, concretely relates to subway contact net basis preparation mould and pre-buried frock.

Background

In the construction of flexible contact networks of urban rail transit, the manufacture of a contact network strut foundation is a key process of the construction of the flexible contact networks, and in the manufacture process of the contact network strut foundation, the embedded quality of foundation bolts can directly influence the construction of the subsequent contact network strut assembly process. The existing contact net support foundation bolt is embedded mainly by welding a steel bar and a steel plate, positioning of the foundation bolt is achieved, the plain-steel bar is used as a stirrup of the foundation bolt, and the steel plate with certain thickness is welded and fixed at the joint of an embedded section and an exposed section of the foundation bolt. The embedments are made one by one as shown in fig. 1.

The anchor bolt perpendicularity of prior art mainly passes through stirrup and steel sheet decision, but the unavoidable error that exists of buckling, welding of on-the-spot stirrup, simultaneously in the preparation of built-in fitting, installation, the stirrup still usually has obvious deformation, in case the stirrup takes place to warp, anchor bolt's straightness that hangs down will change, and anchor bolt's straightness that hangs down in case changes, will cause the difficulty for subsequent contact net pillar assemblage process to increase the unnecessary cost. Simultaneously, contact net foundation pouring is accomplished the back, and the concrete can take place shrinkage deformation in the hardening process, because of prior art's steel sheet is planar structure, resists the ability of deformation relatively poor.

SUMMERY OF THE UTILITY MODEL

Based on the above statement, the utility model provides a subway contact net basis preparation mould and pre-buried frock can carry out effective control to the pre-buried gesture of rag bolt, with the aversion control that rag bolt caused because of construction external force, concrete deformation external force in the precision range.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a subway contact net foundation manufacturing die comprises two transverse supporting beams arranged in parallel and two longitudinal supporting beams arranged in parallel, wherein two ends of each transverse supporting beam are respectively connected with the longitudinal supporting beams on two sides; a plurality of mounting holes are formed in each of the two longitudinal supporting beams, and the number and the positions of the mounting holes are matched with foundation bolts of the embedded parts; the length of each longitudinal supporting beam is larger than the width of the embedded hole.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the transverse supporting beam and the longitudinal supporting beam are both of hollow structures.

Furthermore, the transverse supporting beam and the longitudinal supporting beam are both made of light high-strength aluminum alloy.

The utility model also provides a subway contact net pre-buried frock, including built-in fitting and above-mentioned arbitrary one the basis preparation mould, the built-in fitting includes the steel sheet of level setting and installs the stirrup in the steel sheet bottom, a plurality of rag bolts are installed vertically at the steel sheet top; the foundation bolts correspond to the mounting holes one by one, and the foundation bolts respectively penetrate through the corresponding mounting holes; nuts are sleeved on the foundation bolts and abut against the upper surfaces of the longitudinal supporting beams; and two ends of the longitudinal supporting beam are respectively used for being placed on two opposite sides of the embedded hole.

Furthermore, the center of the steel plate is provided with an exhaust hole.

Furthermore, the two longitudinal supporting beams are respectively positioned at two sides of the exhaust hole, and the two transverse supporting beams are also respectively positioned at two sides of the exhaust hole.

Furthermore, the distance between the top surface of the foundation bolt and the top surface of the contact net foundation is equal to the designed exposed length.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

1. the utility model discloses a foundation manufacture mould fixes a position rag bolt, can carry out effective control to rag bolt pre-buried gesture, with rag bolt because of the shift control that construction external force, concrete deformation external force caused in the precision range, when realizing contact net strut combination, rag bolt need not the effect of correction;

2. the utility model discloses the construction degree of difficulty is extremely low, and the site operation operating personnel accept simply to hand over at the end alright skillfully to master and use the skill, and the live time is short, and a basis is once used survival, and the later stage need not maintain, only needs contact net basis concrete to possess and tears the mould away after certain intensity and just can recycle.

Drawings

Fig. 1 is a schematic structural view of a conventional embedded part;

fig. 2 is a schematic structural view of a mold for manufacturing a subway contact network foundation provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of a subway overhead line system pre-buried tool provided in the embodiment of the present invention;

FIG. 4 is a top view of FIG. 3;

in the drawings, the reference numbers indicate the following list of parts:

1. embedding parts; 11. hooping; 12. a steel plate; 13. a foundation bolt; 14. an exhaust hole; 2. manufacturing a mold for a foundation; 21. a longitudinal support beam; 22. a cross support beam; 23. mounting holes; 3. pre-burying a hole; 4. and a nut.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," or "having," and the like, specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

The utility model provides a pre-buried frock of subway contact net, includes built-in fitting 1 and basic preparation mould 2, fixes a position built-in fitting 1 through basic support mould 2 to the completion is pre-buried in buried hole 3 with built-in fitting 1, and removable basic preparation mould 2 after the concrete possesses certain strength, realizes the used circulation of basic preparation mould 2.

The embedded part 1 is an existing embedded part of the foundation bolt and comprises stirrups 11, a steel plate 12 and a plurality of foundation bolts 13. The stirrup 11 is made of plain steel bars and serves as an embedded section. The steel plate 12 is horizontally arranged and welded on the top of the stirrup 11 to form a joint of the embedded section and the exposed section. A plurality of anchor bolts 13 are vertically welded on the top of the steel plate 12 as exposed sections. The center of the steel plate 12 is provided with an exhaust hole 14 for discharging air in the concrete below the steel plate 12, so as to ensure the compactness of the concrete below the steel plate 12.

In the prior art, the perpendicularity of the foundation bolt 13 is mainly determined by the stirrup 11 and the steel plate 12, but the bending and welding of the on-site stirrup 11 have inevitable errors, and meanwhile, in the manufacturing and mounting processes of the embedded part 1, the stirrup 11 usually has obvious deformation, once the stirrup 11 deforms, the perpendicularity of the foundation bolt 13 changes, and once the perpendicularity of the foundation bolt 13 changes, the difficulty is caused to the subsequent contact net pillar assembling process, so that the unnecessary cost is increased. Meanwhile, after the contact net foundation is poured, the concrete can shrink and deform in the hardening process, and the steel plate 12 is of a planar structure, so that the deformation resistance is poor.

According to the traditional foundation bolt installation method, due to the fact that the limiting capacity of the position of the foundation bolt 13 is poor, the pre-buried installation quality of the foundation bolt is controlled by the experience of workers, and the pre-buried posture of the foundation bolt 13 is changed along with deformation of concrete in the early hardening process, and installation construction of a contact net support is influenced finally.

In this embodiment, the basic manufacturing mold 2 includes two longitudinal supporting beams 21 arranged in parallel and two transverse supporting beams 22 arranged in parallel, two ends of the two transverse supporting beams 22 are respectively welded on the longitudinal supporting beams 21 on two sides, and the lengths of the two longitudinal supporting beams 21 are both greater than the width of the pre-buried hole 3, so that two ends of the longitudinal supporting beams 21 are respectively placed on two opposite sides of the pre-buried hole 21.

The two transverse supporting beams 22 are respectively positioned at two opposite sides of the exhaust hole 14, and the two longitudinal supporting beams 21 are also respectively positioned at two opposite sides of the exhaust hole 14, so that a vibrating rod of a concrete vibrator can be conveniently inserted into the exhaust hole 14.

The two longitudinal supporting beams 21 are provided with a plurality of mounting holes 23, and the number and the positions of the mounting holes 23 correspond to and are matched with the foundation bolts 13 one by one. The foundation bolt 13 passes corresponding mounting hole respectively to all install nut 4 on the foundation bolt 13, nut 4 all supports the upper surface of a vertical supporting beam 21.

When carrying out the pre-buried installation of rag bolt 13, at first carry out preliminary location to rag bolt 13, ensure that each rag bolt 13 relative position is correct in the contact net basis. And aligning the foundation manufacturing mold 2 to the corresponding mounting hole 23, sleeving the foundation bolt 13, adjusting the distance between the top surface of the foundation bolt 13 and the top surface of the contact net foundation to be equal to the designed exposed length, mounting the nut 4 on the part of the upper part exposed out of the longitudinal support beam 21, and firmly welding the lower part of the foundation bolt 13 and the steel plate 12 to enable the upper surface of the steel plate 12 to be flush with the top surface of the foundation. And (5) after confirming that the template support is qualified, carrying out concrete pouring operation.

This embodiment is fixed a position rag bolt 13 through basic preparation mould 2, can carry out effective control to the pre-buried gesture of rag bolt 13, with rag bolt 13 because of the aversion control that construction external force, concrete deformation external force caused in the precision range, when realizing that the contact net strut is established, effect that rag bolt 13 need not rectify.

And this embodiment construction degree of difficulty is extremely low, and site operation operating personnel accept simply to hand over the end alright skilled master the use skill, and the live time is short, and a basis once uses survival, and the later stage need not maintain, only needs contact net basis concrete to possess can dismantle basis preparation mould 2 and nut 4 just circulated use after certain strength.

In addition, the longitudinal support beam 21 and the transverse support beam 22 can be made of light high-strength aluminum alloy materials, and even if the longitudinal support beam and the transverse support beam are directly contacted with strong alkaline substances such as concrete, the longitudinal support beam and the transverse support beam can be prevented from being rusted. Meanwhile, due to the characteristics of light weight and high strength of the aluminum alloy, the die is easy to carry and low in damage rate.

Because the longitudinal support beam 21 and the transverse support beam 22 adopt hollow structures to form a three-dimensional structure, compared with a simple plane structure, the three-dimensional structure has higher strength and is not easy to deform when meeting external force, and the project practice proves that the basic manufacturing mold 2 can be recycled for multiple times.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A subway contact net foundation manufacturing die is characterized by comprising two parallel transverse supporting beams and two parallel longitudinal supporting beams, wherein two ends of each transverse supporting beam are respectively connected with the longitudinal supporting beams on two sides; a plurality of mounting holes are formed in each of the two longitudinal supporting beams, and the number and the positions of the mounting holes are matched with foundation bolts of the embedded parts; the length of each longitudinal supporting beam is larger than the width of the embedded hole.

2. The mold for manufacturing the subway contact net foundation as claimed in claim 1, wherein said horizontal supporting beam and said vertical supporting beam are both hollow structures.

3. The mold for manufacturing the subway contact net foundation as claimed in claim 1, wherein said horizontal supporting beams and said vertical supporting beams are made of light high-strength aluminum alloy.

4. A subway overhead line system pre-buried tool is characterized by comprising an embedded part and the foundation manufacturing mold of any one of claims 1 to 3, wherein the embedded part comprises a horizontally arranged steel plate and stirrups arranged at the bottom of the steel plate, and a plurality of foundation bolts are vertically arranged at the top of the steel plate; the foundation bolts correspond to the mounting holes one by one, and the foundation bolts respectively penetrate through the corresponding mounting holes; nuts are sleeved on the foundation bolts and abut against the upper surfaces of the longitudinal supporting beams; and two ends of the longitudinal supporting beam are respectively used for being placed on two opposite sides of the embedded hole.

5. The pre-buried frock of subway contact net of claim 4, characterized in that, the center of steel sheet is provided with the exhaust hole.

6. The pre-buried frock of subway contact net of claim 5, characterized in that, two longitudinal support beam is located respectively the both sides of exhaust hole, two horizontal support beam also is located respectively the both sides of exhaust hole.

7. The pre-buried frock of subway contact net of claim 4, characterized in that rag bolt top surface contact net basis top surface distance equals design exposed length.