CN215107311U

CN215107311U - Hollow pier stud centre form of tunnel construction

Info

Publication number: CN215107311U
Application number: CN202120508443.7U
Authority: CN
Inventors: 孙宝明
Original assignee: Tianjin Liando Ristar Science & Technology Co ltd
Current assignee: Tianjin Liando Ristar Science & Technology Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-12-10
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses a hollow pier stud internal mold for tunnel construction, which comprises a rectangular frame, an internal mold assembly and a supporting and fixing mechanism; the four corners of the rectangular frame are arranged in chamfer type, the inner mold assembly comprises a rectangular template and chamfer templates, the chamfer templates are arranged at the four chamfer angles on the inner side of the rectangular frame, the rectangular template is arranged on the inner side of the rectangular frame and positioned between every two chamfer templates, one side of the rectangular template and one side of the chamfer templates are provided with convex clamping columns, one side of the rectangular template, which is far away from the clamping columns, is provided with clamping grooves corresponding to the clamping columns, and the top surfaces of the rectangular template and the chamfer templates are symmetrically and fixedly provided with fixing rings for hoisting; the supporting and fixing mechanism is fixedly arranged in the rectangular frame and positioned on the inner side of the inner die assembly and used for fixedly supporting the inner die assembly. The utility model discloses a hollow pier stud centre form through the fixed inside formword of the connected mode of joint, avoids a large amount of work load that bolted connection mode brought, and reduction of erection time improves work efficiency.

Description

Hollow pier stud centre form of tunnel construction

Technical Field

The utility model relates to a hollow pier stud centre form especially relates to a hollow pier stud centre form of tunnel construction.

Background

The hollow pier stud is a common pier type in tunnel engineering, and the inner mold stripping is generally realized by hoisting out the pier top. The existing hollow pier inner mold design scheme is generally a single template loose and loose assembling mode. The inner part is supported by a steel frame, the inner mould is assembled on the ground one by one during installation, namely the templates are connected by bolts and then hung into the holes of the bearing platform one by one, and then the inner mould supporting steel frame is installed. After the pouring is finished, the connecting bolts between the templates are loosened, and then the internal mold templates are lifted out of the inner cavity of the pier column one by one until all the templates are removed. This type of connection by means of bolts is very labor intensive in both installation and removal from the mold, resulting in a long construction period.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a hollow pier inner mold for tunnel construction, which is easy and fast to install and disassemble.

The utility model provides a hollow pier stud internal mold for tunnel construction, which comprises a rectangular frame, an internal mold assembly and a supporting and fixing mechanism; the four corners of the rectangular frame are arranged in chamfer type, the inner mold assembly comprises a rectangular template and chamfer templates, the chamfer templates are arranged at the four chamfer angles at the inner side of the rectangular frame, the rectangular template is arranged at the inner side of the rectangular frame and is positioned between every two chamfer templates, one side of the rectangular template and one side of the chamfer templates are provided with convex clamping columns, one side of the rectangular template, which is far away from the clamping columns, is provided with clamping grooves corresponding to the clamping columns, and the top surfaces of the rectangular template and the chamfer templates are symmetrically and fixedly provided with fixing rings for hoisting; the supporting and fixing mechanism is fixedly arranged inside the rectangular frame and positioned on the inner side of the inner die assembly and used for fixedly supporting the inner die assembly.

Preferably, support fixed establishment and include the fixing base, on four lateral walls in the outside of fixing base respectively fixed be provided with the cylinder, the piston rod of cylinder stretches to along the horizontal direction respectively contralateral centre form subassembly, the piston rod of cylinder is kept away from the fixed plate that is provided with of one end of cylinder, be located on the piston rod of cylinder the fixed plate is close to the fixed gusset plate that is provided with in one side of cylinder, fixed being provided with a plurality of anchor bars on the gusset plate, the anchor bar is kept away from the one end of gusset plate is fixed set up in on the fixed plate, be used for keeping the steadiness of gusset plate.

Preferably, the rectangular template and the chamfer template are rotatably provided with a plurality of balls at one side close to the rectangular frame, so that the friction force generated when the rectangular template and the chamfer template slide relative to the rectangular frame is reduced.

Preferably, the clamping column can be clamped into the corresponding clamping groove and used for connecting the adjacent rectangular template or the chamfer template.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a hollow pier stud centre form sets up the connected mode of centre form subassembly into the joint form, the installation and the dismantlement of two adjacent templates of being convenient for, and very big engineering time that shortens has improved work efficiency.

(2) The utility model discloses a hollow pier stud centre form, one side that rectangle template and chamfer template are close to the rectangle frame is provided with a plurality of balls, can reduce rectangle template and chamfer template installation or when dismantling and the frictional force between the rectangle frame.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic structural view of an inner mold of a hollow pier stud for tunnel construction provided in an embodiment of the present invention;

reference numbers in the figures: 1. a rectangular frame;

2. an inner mold assembly; 21. a rectangular template; 22. chamfering the template; 23. a clamping column; 24. a clamping groove; 25. a ball bearing; 26. a fixing ring;

3. a supporting and fixing mechanism; 31. a fixed seat; 32. a cylinder; 33. a fixing plate; 34. a reinforcing plate; 35. and a reinforcing rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, an embodiment of the present invention provides a hollow pier stud internal mold for tunnel construction, which includes a rectangular frame 1, an internal mold assembly 2 and a supporting and fixing mechanism 3; the four corners of the rectangular frame 1 are arranged in chamfer type, the inner mold assembly 2 comprises a rectangular template 21 and chamfer templates 22, the chamfer templates 22 are arranged at the four chamfer angles of the inner side of the rectangular frame 1, the rectangular template 21 is arranged at the inner side of the rectangular frame 1 and is positioned between every two chamfer templates 22, one sides of the rectangular template 21 and the chamfer templates 22 are provided with convex clamping columns 23, one side of the rectangular template 21, which is far away from the clamping columns 23, is provided with clamping grooves 24 corresponding to the clamping columns 23, and the top surfaces of the rectangular template 21 and the chamfer templates 22 are symmetrically and fixedly provided with fixing rings 26 for hoisting; the supporting and fixing mechanism 3 is fixedly arranged inside the rectangular frame 1 and positioned on the inner side of the inner die assembly 2, and is used for fixedly supporting the inner die assembly 2.

In a preferred embodiment, the supporting and fixing mechanism 3 includes a fixing seat 31, four side walls of an outer side of the fixing seat 31 are respectively and fixedly provided with an air cylinder 32, a piston rod of the air cylinder 32 respectively extends to the inner mold assembly 2 at an opposite side along a horizontal direction, one end of the piston rod of the air cylinder 32, which is far away from the air cylinder 32, is fixedly provided with a fixing plate 33, one side of the piston rod of the air cylinder 32, which is close to the air cylinder 32, is fixedly provided with a reinforcing plate 34, the reinforcing plate 34 is fixedly provided with a plurality of reinforcing rods 35, and one end of the reinforcing rod 35, which is far away from the reinforcing plate 34, is fixedly provided on the fixing plate 33 for maintaining the stability of the reinforcing plate 34.

In a preferred embodiment, a plurality of balls 25 are rotatably disposed on the sides of the rectangular templates 21 and the chamfering templates 22 close to the rectangular frame 1 for reducing the friction force when the rectangular templates 21 and the chamfering templates 22 slide relative to the rectangular frame 1.

In a preferred embodiment, the clip posts 23 can be clipped into corresponding clip slots 24 for connecting adjacent rectangular forms 21 or chamfered forms 22.

The utility model discloses a theory of operation: during installation, the rectangular frame 1 is firstly placed into the hollow pier stud, the supporting and fixing mechanism 3 is fixed inside the rectangular frame 1, the air cylinder 32 is started, the fixing plate 33 is driven to move towards four directions until the distance between the fixing plate 33 and the rectangular frame 1 is slightly larger than the width of the rectangular template 21 or the chamfer template 22, the rectangular template 21 and the chamfer template 22 are sequentially placed into a gap between the fixing plate 33 and the rectangular frame 1 through the hoisting equipment, and the air cylinder 32 is started until all the rectangular template 21 or the chamfer template 22 is placed into the gap, and the fixing plate 33 is driven to abut against the outer wall of the rectangular template 21 or the chamfer template 22 for fixing; when the inner die needs to be disassembled, the fixing plate 33 is driven by the air cylinder 32 to be slightly away from one end of the rectangular template 21 or the chamfer template 22, the rectangular template 21 and the chamfer template 22 are taken out by the hoisting equipment, and demolding is completed.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hollow pier stud internal mold for tunnel construction is characterized by comprising a rectangular frame, an internal mold assembly and a supporting and fixing mechanism; the four corners of the rectangular frame are arranged in chamfer type, the inner mold assembly comprises a rectangular template and chamfer templates, the chamfer templates are arranged at the four chamfer angles at the inner side of the rectangular frame, the rectangular template is arranged at the inner side of the rectangular frame and is positioned between every two chamfer templates, one side of the rectangular template and one side of the chamfer templates are provided with convex clamping columns, one side of the rectangular template, which is far away from the clamping columns, is provided with clamping grooves corresponding to the clamping columns, and the top surfaces of the rectangular template and the chamfer templates are symmetrically and fixedly provided with fixing rings for hoisting; the supporting and fixing mechanism is fixedly arranged inside the rectangular frame and positioned on the inner side of the inner die assembly and used for fixedly supporting the inner die assembly.

2. The hollow pier inner mold according to claim 1, wherein the supporting and fixing mechanism comprises a fixing seat, four side walls outside the fixing seat are respectively and fixedly provided with an air cylinder, a piston rod of the air cylinder extends to the opposite inner mold assembly along the horizontal direction, one end of the piston rod of the air cylinder, which is far away from the air cylinder, is fixedly provided with a fixing plate, the piston rod of the air cylinder is located on one side, which is close to the air cylinder, of the fixing plate and is fixedly provided with a reinforcing plate, the reinforcing plate is fixedly provided with a plurality of reinforcing rods, and one end, which is far away from the reinforcing plate, of the reinforcing rod is fixedly arranged on the fixing plate and is used for keeping the stability of the reinforcing plate.

3. The hollow pier inner mold according to claim 2, wherein a plurality of balls are rotatably disposed on one side of the rectangular mold plate and the chamfer mold plate close to the rectangular frame, for reducing friction force when the rectangular mold plate and the chamfer mold plate slide relative to the rectangular frame.

4. The hollow pier stud internal mold according to claim 3, wherein the clamping columns can be clamped into the corresponding clamping grooves for connecting the adjacent rectangular templates or the chamfer templates.