CN218060429U

CN218060429U - Preformed hole forming die assembly

Info

Publication number: CN218060429U
Application number: CN202222425257.4U
Authority: CN
Inventors: 李永富; 龙顺田; 岳家余; 余文强; 魏勇君; 赵凌锋; 杨大洋; 李其生; 曹正英
Original assignee: SICHUAN HUAXI INSTALLATION ENGINEERING CO LTD
Current assignee: SICHUAN HUAXI INSTALLATION ENGINEERING CO LTD
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-12-16
Anticipated expiration: 2032-09-13

Abstract

The utility model provides a preformed hole forming die assembly, which comprises a first circular platform section which is horizontally arranged, wherein one axial end of the first circular platform section is connected with a second circular platform section which is coaxially arranged; the radius of the end face of one end, far away from the second circular truncated cone section, of the first circular truncated cone section is r1, the radius of the end face of one end, connected with the second circular truncated cone section, of the first circular truncated cone section is r2, the radius of the end face of one end, connected with the first circular truncated cone section, of the second circular truncated cone section is r3, the radius of the end face of one end, far away from the first circular truncated cone section, of the second circular truncated cone section is r4, and r1 is more than r2 and less than r3 and less than r4; the device is characterized by further comprising a horizontally arranged embedded pipe, wherein one end of the embedded pipe is sleeved outside the first circular truncated cone section and abuts against the end face of the second circular truncated cone section. The blocking head can be used repeatedly. Compared with the waterproof sleeve of the water-stop steel plate in the background technology, the taken-out plugging head can be repeatedly used, and construction cost is saved.

Description

Preformed hole forming die assembly

Technical Field

The utility model belongs to the technical field of the cable shaft construction, concretely relates to preformed hole forming die subassembly.

Background

The primary cable of the civil airport navigation aid lamp is usually designed into a structure form of a whole-course pipe penetration, the cable needs to be laid and installed through the side wall of a cable well, and the cable well is usually positioned below the ground. The water resistance of the cable well is a key consideration in construction. As shown in fig. 1 and 2, a square hole 1 is reserved on a side wall of a cable well, so that a plurality of cable protection pipes 2 can pass through the square hole 1. After the cable passes through the square hole 1 and is laid, the cable protection pipe 2 for coating the cable is placed in the square hole 1 through the pipe pillow, and the plurality of cable protection pipes 2 are uniformly arranged in the square hole 1 at intervals. And then, erecting a template, and using concrete to block a gap between the side wall of the square hole 1 and the cable protection pipe 2. Because the area that needs the shutoff is broad, the time of the concrete thick liquid of vibrating is longer, and the condition that combines incompact appears easily in the junction of cable protection pipe 2 and concrete, and then leads to the appearance of water leakage point.

In order to solve the above technical problem, as shown in fig. 3, the waterproof sleeve of the water-stop steel plate is integrally poured into concrete, i.e. into a side wall of the cable shaft. The method comprises the steps of erecting an inner formwork 3 and an outer formwork 4 which are vertically arranged, forming a pouring space 5 between the inner formwork 3 and the outer formwork 4, installing criss-cross reinforcing mesh in the pouring space 5, and then installing the waterproof casing of the water stop steel plate in the pouring space 5 through the reinforcing mesh. A plurality of waterproof sleeve pipes of stagnant water steel sheet are even interval arrangement. The waterproof sleeve of the water stop steel plate comprises a sleeve 6 which is horizontally arranged and provided with openings at two ends, and a water stop ring plate 7 connected with the outer surface of the sleeve 6; the water stop ring plate 7 is arranged along the circumferential direction of the sleeve 6 and is positioned in the middle of the sleeve 6 in the axial direction. One end of the sleeve 6 is abutted against the inner surface of the inner template 3, and the other end is abutted against the inner surface of the outer template 4. And pouring concrete into the pouring space 5, and removing the inner template 3 and the outer template 4 after the concrete reaches the template removal strength. The cable passes through the sleeve 6 to be laid and installed, the cable protection pipe for coating the cable is clamped in the sleeve 6, and then the gap between the cable protection pipe and the inner wall of the sleeve 6 is sealed by using concrete. The waterproof sleeve of the water-stop steel plate in the construction method can be used only once, so the construction method has the defect of higher construction cost. Further, since the sleeve 6 is usually made of steel, a gap is easily formed between concrete and the steel, and a new water leakage point is formed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a preformed hole forming die subassembly is provided, the shutoff head wherein can use repeatedly many times.

The utility model provides a technical scheme that its technical problem adopted is: the preformed hole forming die assembly comprises a first circular truncated cone section which is horizontally arranged, and one axial end of the first circular truncated cone section is connected with a second circular truncated cone section which is coaxially arranged;

the radius of the end face of one end, far away from the second circular truncated cone section, of the first circular truncated cone section is r1, the radius of the end face of one end, connected with the second circular truncated cone section, of the first circular truncated cone section is r2, the radius of the end face of one end, connected with the first circular truncated cone section, of the second circular truncated cone section is r3, the radius of the end face, far away from the first circular truncated cone section, of the second circular truncated cone section is r4, and r1 is larger than r2, and r3 is larger than r4;

the device is characterized by further comprising a horizontally arranged embedded pipe, wherein one end of the embedded pipe is sleeved outside the first circular truncated cone section and abuts against the end face of the second circular truncated cone section.

Furthermore, the first circular truncated cone section and the second circular truncated cone section are of an integrated structure.

Furthermore, the first circular truncated cone section and the second circular truncated cone section are both made of concrete.

Further, the embedded pipe is made of plastic.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a preformed hole forming die subassembly, shutoff head wherein can relapse repetitious usage. Compared with the waterproof sleeve of the water-stop steel plate in the background technology, the taken-out plugging head can be repeatedly used, and construction cost is saved.

Drawings

FIG. 1 is a schematic view showing the position of a square hole in the prior art;

fig. 2 is a schematic view of a mounting structure of a cable protection pipe in a square hole in the related art;

FIG. 3 is a schematic view of the installation structure of a waterproof sleeve of a water stop steel plate in the prior art;

fig. 4 is a schematic view of the installation structure of the present invention;

FIG. 5 is a schematic structural diagram of the concrete after the inner and outer formworks are removed and the plugging heads are taken out after the concrete reaches the stripping strength;

fig. 6 is a schematic perspective view of the plugging head of the present invention;

reference numerals: 1-square hole; 2-cable protection tube; 3-inner template; 4-external template; 5, pouring a space; 6-a sleeve; 7-a water stop ring plate; 8-plugging heads; 801-a first frustum section; 802-a second circular table segment; 9-pre-burying a pipe; 10-mounting holes.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 4, 5 and 6, the preformed hole forming die assembly includes a first circular truncated cone section 801 horizontally arranged, and a second circular truncated cone section 802 coaxially arranged is connected to one axial end of the first circular truncated cone section 801; the radius of the end face of one end, away from the second circular truncated cone section 802, of the first circular truncated cone section 801 is r1, the radius of the end face of the end, connected with the second circular truncated cone section 802, of the first circular truncated cone section 801 is r2, the radius of the end face of one end, connected with the first circular truncated cone section 801, of the second circular truncated cone section 802 is r3, the radius of the end face of one end, away from the first circular truncated cone section 801, of the second circular truncated cone section 802 is r4, and r1 is more than r2 and more than r3 and more than r4; the device is characterized by further comprising a horizontally arranged embedded pipe 9, wherein one end of the embedded pipe 9 is sleeved outside the first circular platform section 801 and abuts against the end face of the second circular platform section 802.

A plane parallel to the bottom surface of the cone is used for cutting the cone, and the part between the bottom surface and the section is called a circular truncated cone. The first circular truncated cone section 801 is connected with the second circular truncated cone section 802 to form a blocking head 8, and the blocking head 8 is matched with the embedded pipe 9 for use.

The method comprises the following steps of erecting an inner template 3 and an outer template 4 which are vertically arranged, arranging the outer templates 4 at one side of the inner template 3 at intervals, forming a pouring space 5 between the inner template 3 and the outer templates 4, installing criss-cross reinforcing meshes in the pouring space 5, and then installing a pre-embedded pipe 9 and a blocking head 8. The plugging head 8 and the pre-buried pipe 9 are both located in the casting space 5. The preformed hole forming die assembly is provided with a plurality of preformed holes at even intervals. The reinforcing bar net can improve the intensity of concrete on the one hand, and on the other hand provides the installation support for shutoff head 8 and buried pipe 9 in advance. One end of the pre-buried pipe 9 is sleeved outside the first circular platform section 801 and abuts against the end face of the second circular platform section 802, and the pre-buried pipe 9 is in clamping fit with the first circular platform section 801. The other end of the embedded pipe 9 is abutted against the inner surface of the inner template 3. One end of the second circular truncated cone section 802 far away from the first circular truncated cone section 801 is abutted against the inner surface of the outer template 4.

After the plugging heads 8 and the embedded pipes 9 are installed, concrete is poured into the pouring space 5 to form a cable well side wall, when the concrete reaches the form removal strength, the inner formwork 3 and the outer formwork 4 are detached, the plugging heads 8 are taken out, and the embedded pipes 9 are poured into the concrete. At the moment, an installation hole 10 communicated with the embedded pipe 9 is formed, and the embedded pipe 9 and the installation hole 10 together form an installation channel penetrating through the side wall of the cable well. The shape of the mounting hole 10 is the same as the shape of the second frustum section 802. After the concrete reaches the installation strength, the cable passes through the embedded pipe 9 to be laid and installed, the cable protection pipe for coating the cable is installed in the installation hole 10, the cable protection pipe abuts against the end face, located in the side wall of the cable well, of the embedded pipe 9, and the end face, located in the side wall of the cable well, of the embedded pipe 9 provides a limiting effect for installation of the cable protection pipe. And finally, using concrete to seal the gap between the side wall of the cable protection pipe and the side wall of the mounting hole 10. Because the area needing plugging is few, the time for vibrating the concrete paste is short, the concrete is closely combined with the cable protection pipe, the plugging effect is good, and water in a soil body is not easy to permeate into the cable well. And the concrete used for plugging the gap between the side wall of the cable protection pipe and the side wall of the mounting hole 10 has the same label as that of the concrete of the side wall of the cable well. Because r1 is more than r2 and more than r3 is more than r4, the plugging head 8 can be taken out by constructors, the cable protection pipe can be installed in the installation hole 10 after the plugging head 8 is taken out by the constructors, and concrete slurry can enter a gap between the side wall of the cable protection pipe and the side wall of the installation hole 10. The utility model discloses a preformed hole forming die subassembly for preformed hole shaping on the cable shaft lateral wall. Compared with the waterproof sleeve of the water-stop steel plate in the background technology, the taken-out blocking head 8 can be repeatedly used, and construction cost is saved. After the cable passes through the side wall of the cable well to be laid and installed, the whole waterproof effect of the side wall of the cable well is good, water in a soil body is prevented from permeating into the cable well, and the cable well is safe and reliable.

Preferably, the first circular truncated cone section 801 and the second circular truncated cone section 802 are of an integrally formed integral structure.

The first circular platform section 801 and the second circular platform section 802 can be both made of steel products, and preferably, the first circular platform section 801 and the second circular platform section 802 are both made of concrete products. The concrete product has the advantages of convenient processing, low cost and the like.

The embedded pipe 9 can be made of steel, and preferably, the embedded pipe 9 is made of plastic.

It is above that the utility model discloses a concrete implementation can be seen from the implementation, the utility model provides a preformed hole forming die subassembly, the shutoff head wherein can use repeatedly. Compared with the waterproof sleeve of the water-stop steel plate in the background technology, the sealing plug after being taken out can be repeatedly used, and construction cost is saved.

Claims

1. Preformed hole forming die subassembly, its characterized in that: the device comprises a first circular platform section (801) which is horizontally arranged, wherein one axial end of the first circular platform section (801) is connected with a second circular platform section (802) which is coaxially arranged;

the radius of the end face of one end, far away from the second circular truncated cone section (802), of the first circular truncated cone section (801) is r1, the radius of the end face of the end, connected with the second circular truncated cone section (802), of the first circular truncated cone section (801) is r2, the radius of the end face of one end, connected with the first circular truncated cone section (801), of the second circular truncated cone section (802) is r3, the radius of the end face, far away from the first circular truncated cone section (801), of the second circular truncated cone section (802) is r4, and r1 is larger than r2 and r3 is larger than r4;

the device is characterized by further comprising a horizontally arranged embedded pipe (9), wherein one end of the embedded pipe (9) is sleeved outside the first circular platform section (801) and abuts against the end face of the second circular platform section (802).

2. The preformed hole forming die assembly of claim 1, wherein: the first circular platform section (801) and the second circular platform section (802) are of an integrally formed integral structure.

3. The preformed hole forming die assembly of claim 1, wherein: the first circular platform section (801) and the second circular platform section (802) are both concrete products.

4. The preformed hole forming die assembly of claim 1, wherein: the embedded pipe (9) is a plastic product.