CN212642567U

CN212642567U - Concrete inspection shaft assembled cat ladder

Info

Publication number: CN212642567U
Application number: CN202020721977.3U
Authority: CN
Inventors: 朱小双; 陶新意; 屈代涌; 杨佳逸; 盛华鑫; 吴丹; 陈洁
Original assignee: Hubei Yitong Construction Group Co ltd
Current assignee: Hubei Yitong Construction Group Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2021-03-02
Anticipated expiration: 2030-05-06

Abstract

The utility model provides a concrete inspection shaft assembled cat ladder, including ladder frame, along a plurality of pre-buried supports that inspection shaft lateral wall from the top down interval equals the setting, pre-buried support is equipped with the mounting, ladder frame is equipped with the screw thread spare, the outside cover of screw thread spare is equipped with the sleeve, sleeve and mounting threaded connection, screw thread spare center axis interval on the ladder frame and the mounting center axis interval on the pre-buried support equal, the mounting still is equipped with the sealing member, the sealing member material is plastics for sealing when the mounting is pre-buried, inside so that avoid impurity dust to get into the mounting. The utility model discloses need not carry out later stage drilling, bar planting to the concrete well, guaranteed the integrality and the leakproofness of concrete well, reach quick construction, realize the quick replacement in later stage, especially can obtain very big application in future assembled inspection shaft is used.

Description

Concrete inspection shaft assembled cat ladder

Technical Field

The utility model belongs to the technical field of engineering construction appurtenance and specifically relates to a concrete inspection shaft assembled cat ladder is related to.

Background

The existing finished product cat ladder on the market has very high practical value when the brick inspection shaft is constructed, but with the improvement of building standards, the application of the concrete inspection shaft in construction is more and more extensive. But the cat ladder in the existing market is inconvenient for directly pre-burying in concrete inspection shaft work progress, and the mode construction of drilling bar planting is mostly adopted, and the construction degree of difficulty is big, and the quality is difficult to guarantee moreover.

With the application and popularization of the assembly type inspection well in the field of buildings, the assembly type concrete inspection well has a huge market prospect, but the crawling ladder limits the rate of product forming and installation. Utilize positive and negative silk sleeve principle inseparable with buried sleeve and threaded cat ladder installation in the time of the installation of assembled cat ladder, provide reference for the factory building construction of assembled inspection shaft.

Meanwhile, in the aspect of later-stage maintenance, the existing inspection well is often damaged or injured by the ladder stand, and the existing inspection well cannot be directly disassembled and replaced, so that the inspection well can only be dug out and then rebuilt in many times. And for the concrete inspection well, the concrete inspection well is more difficult to replace. The assembled cat ladder is convenient to be dismantled, and convenience is provided for the maintenance of later stage cat ladder.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned problem and providing a simple structure, economic nature are good, the operation is swift and maintain convenient assembled cat ladder, through with pre-buried support pre-buried when cast-in-place concrete well, installation sleeve and ladder frame after the inspection shaft shaping reach quick construction, realize the quick change in later stage, have overcome prior art's not enough.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the assembled crawling ladder for the concrete inspection well comprises a ladder frame and a plurality of embedded supports, wherein the embedded supports are arranged along the side wall of the inspection well from top to bottom at equal intervals and are provided with fixing pieces;

the distance between the central axes of the threaded parts on the ladder frame is equal to the distance between the central axes of the fixing parts on the embedded bracket;

the mounting still is equipped with the sealing member, the sealing member material is plastics for sealing when the mounting is pre-buried to avoid inside impurity dust gets into the mounting.

In a preferred scheme, the sleeve is provided with a through hole, and a first thread is arranged in the through hole.

In the preferred scheme, the upper end of the sleeve is provided with a hexagonal boss, the lower end of the hexagonal boss is provided with a cylinder, and the outer surface of the cylinder is provided with second threads.

Preferably, the first thread and the second thread have opposite thread directions.

In a preferable scheme, the exterior of the threaded part is provided with a third thread, and the third thread and the first thread have the same direction.

In a preferable scheme, the fixing piece is provided with a blind hole, a fourth thread is arranged in the blind hole, and the direction of the fourth thread is the same as that of the second thread.

In a preferable scheme, the diameter of the inscribed circle of the hexagonal boss is larger than that of the cylinder.

Preferably, the screw member is screwed into or out of the sleeve completely.

Preferably, the sleeve is fully rotatable into and out of the fixing.

In the preferred scheme, the ladder frame is made of plastic steel, one end, close to the threaded part, of the ladder frame is vertical and does not have a hook, and one end, far away from the threaded part, of the ladder frame is wrapped by a rubber anti-skidding sleeve.

The utility model provides a concrete inspection shaft assembled cat ladder, the material is simple, low in manufacturing cost utilizes positive and negative silk structure, through the rotating sleeve, with mounting and muffjoint on the pre-buried support, the sleeve rotates simultaneously and drives the screw-threaded part fastening, easy operation need not carry out later stage drilling, bar planting to the concrete well, has guaranteed the integrality and the leakproofness of concrete well, especially can obtain very big application in future assembled inspection shaft is used.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of the ladder rack of the present invention;

fig. 3 is a schematic view of the pre-buried bracket of the present invention;

FIG. 4 is a perspective view of the sleeve structure of the present invention;

fig. 5 is a schematic view of the sealing member of the present invention;

FIG. 6 is a schematic structural view of a second ladder rack according to an embodiment of the present invention;

FIG. 7 is a schematic view of a second fixing member according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a second sealing member according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a sleeve according to an embodiment of the present invention;

in the figure: ladder frame 1, screw 2, sleeve 3, hexagonal boss 31, cylinder 32, mounting 4, sealing member 5, first screw thread 6, second screw thread 7, third screw thread 8, fourth screw thread 9, pre-buried support 10.

Detailed Description

Example 1

As shown in fig. 1 to 5, the concrete inspection well assembly type ladder stand comprises a ladder frame 1 and a plurality of embedded supports 10 which are arranged along the side wall of an inspection well from top to bottom at equal intervals, wherein the embedded supports 10 are provided with fixing pieces 4, the ladder frame 1 is provided with a threaded piece 2, a sleeve 3 is sleeved outside the threaded piece 2, and the sleeve 3 is in threaded connection with the fixing pieces 4;

the central axis distance of the threaded part 4 on the ladder frame 1 is equal to the central axis distance of the fixing part 4 on the embedded bracket 10;

the fixing part 4 is further provided with a sealing element 5, the sealing element 5 is made of plastic and used for sealing when the fixing part 4 is embedded, so that impurity and dust are prevented from entering the fixing part 4. As a result, the ladder frame 1 is threadedly coupled to the sleeve 3, and the sleeve 3 is threadedly coupled to the fixing member 4, so that the ladder frame is quickly mounted to the pre-buried bracket 10.

In a preferable scheme, the sleeve 3 is provided with a through hole, and a first thread 6 is arranged in the through hole. This arrangement allows the sleeve 3 to secure the ladder frame 1.

In a preferable scheme, the upper end of the sleeve 3 is provided with a hexagonal boss 31, the lower end of the hexagonal boss 31 is provided with a cylinder 32, and the outer surface of the cylinder 32 is provided with a second thread 7. With the structure, the dismounting is convenient, and one end of the hexagonal boss 31 is propped against the ladder frame.

Preferably, the first thread 6 and the second thread 7 are opposite in thread direction. This arrangement allows the ladder frame 1 and the fixing member 4 to be locked simultaneously in the step of merely rotating the sleeve 3.

Preferably, the screw member 2 is externally provided with a third thread 8, and the third thread 8 and the first thread 6 have the same direction. Thereby, the screw 2 and the sleeve 3 are screwed.

In a preferable scheme, the fixing part 4 is provided with a blind hole, a fourth thread 9 is arranged in the blind hole, and the direction of the fourth thread 9 is the same as that of the second thread 6. This structure allows the fixing member 4 to be screwed to the sleeve 3.

Preferably, the diameter of the inscribed circle of the hexagonal boss 31 is larger than that of the cylinder 32. With the structure, the sealing effect of the hexagonal boss 31 is better.

Preferably, the screw 2 can be screwed completely into or out of the sleeve 3. With the structure, the threaded part 2 is convenient to disassemble, replace and maintain.

Preferably, the sleeve 3 can be completely screwed into or out of the fixing element 4. With the structure, the disassembly and the maintenance of the sleeve 3 are convenient.

In the preferred scheme, the ladder frame 1 is made of plastic steel, one end, close to the threaded part 2, of the ladder frame 1 is vertical and does not have a hook, and one end, far away from the threaded part 2, of the ladder frame is wrapped by a rubber anti-skidding sleeve. The structure is adopted, so that the use is friendly and the operation is convenient.

Example 2

The method comprises the following operation steps:

s1, the fixing piece 4 adopts a hollow sleeve with the outer diameter of 50mm and the inner diameter of 30 mm. The thread is arranged in the sleeve by punching, the thread adopts a triangular coarse thread, the nominal diameter D =30mm, the minor diameter D1=27mm, the thread pitch is 1.5mm, and the thread length is 90 mm.

S2, the ladder stand with the threaded piece 2 adopts a 150 x 250 standard, and the front end of the ladder stand is not bent. The front plastic steel is subjected to wire drawing, the thread adopts triangular coarse teeth, the nominal diameter d =16mm, the small diameter d1=13mm, the thread pitch is 1.5mm, and the thread length is 100 mm.

S3, the sleeve 3 is made of plastic steel, the middle part of the sleeve is of a through hole structure, and threads are drawn inside and outside the sleeve. The internal thread adopts triangular coarse teeth, the nominal diameter D =16mm, the minor diameter D1=13mm, the thread pitch is 1.5mm, and the thread length is 100 mm; the external thread adopts a triangular coarse thread, the nominal diameter d =30mm, the minor diameter d1=27mm, the thread pitch is 1.5mm, and the thread length is 90 mm.

S4, the sealing element 5 is made of a plastic piece, the front end of the sealing element is provided with threads, the threads are triangular thick teeth, the nominal diameter d =30mm, the small diameter d1=27mm, the thread pitch is 1.5mm, and the length of the threads is 33.8 mm.

S5, drilling holes in a steel mould of the concrete inspection well, marking the positions of the crawling ladders in the steel mould according to standard sizes, and drilling holes in the inner mould. The bore diameter is the outer diameter of the sleeve 3.

S6, installing the embedded support 10, aligning the embedded support 10 to the opening of the steel die at the outer side of the inner die of the steel die after the supporting of the template is completed, screwing the sealing piece 5 at the opening of the inner die, fixing the position of the embedded support 10, and pouring the inspection well after the completion.

S7, mounting the crawling ladder, after pouring and maintaining the inspection well in place, removing the mold, screwing out the sealing element 5, placing the sleeve 3 and the ladder frame 1 in the coaxial position of the embedded sleeve and contacting, screwing the connecting sleeve 3, and screwing the sleeve 3 and the fixing element 4 through the outer wire of the sleeve 3 and the inner wire of the fixing element 4 on the embedded sleeve 1; meanwhile, the sleeve 3 and the ladder frame 1 are screwed tightly through the inner wire of the sleeve 3 and the outer wire of the screw thread piece 2.

S8, the ladder stand is replaced, when the ladder stand is replaced, the ladder stand 1 and the sleeve 3 can be detached only by twisting the sleeve 3 in the opposite direction, new spare parts are taken out, and the replacement can be completed quickly according to the installation steps.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a concrete inspection shaft assembled cat ladder, characterized by: the inspection well comprises a ladder frame (1) and a plurality of embedded supports (10) which are arranged along the side wall of the inspection well from top to bottom at equal intervals, wherein fixing pieces (4) are arranged on the embedded supports (10), a threaded piece (2) is arranged on the ladder frame (1), a sleeve (3) is sleeved outside the threaded piece (2), and the sleeve (3) is in threaded connection with the fixing pieces (4);

the central axis distance of the threaded part (2) on the ladder frame (1) is equal to the central axis distance of the fixing part (4) on the embedded bracket (10);

the fixing piece (4) is further provided with a sealing piece (5), and the sealing piece (5) is used for sealing when the fixing piece (4) is embedded so as to prevent impurity and dust from entering the fixing piece (4).

2. The concrete inspection well fabricated ladder of claim 1, wherein: the sleeve (3) is provided with a through hole, and a first thread (6) is arranged in the through hole.

3. The concrete inspection well fabricated ladder of claim 2, wherein: the socket is characterized in that a hexagonal boss (31) is arranged at the upper end of the sleeve (3), a cylinder (32) is arranged at the lower end of the hexagonal boss (31), and second threads (7) are arranged on the outer surface of the cylinder (32).

4. The concrete inspection well fabricated ladder of claim 3, wherein: the first thread (6) and the second thread (7) have opposite thread directions.

5. The concrete inspection well fabricated ladder of claim 2, wherein: the outer part of the screw thread piece (2) is provided with a third screw thread (8), and the direction of the third screw thread (8) is the same as that of the first screw thread (6).

6. The concrete inspection well fabricated ladder of claim 1, wherein: the fixing piece (4) is provided with a blind hole, a fourth thread (9) is arranged in the blind hole, and the direction of the fourth thread (9) is the same as that of the second thread (7).

7. The concrete inspection well fabricated ladder of claim 3, wherein: the diameter of the inscribed circle of the hexagonal boss (31) is larger than that of the cylinder (32).

8. The concrete inspection well fabricated ladder of claim 1, wherein: the screw (2) can be screwed completely into or out of the sleeve (3).

9. The concrete inspection well fabricated ladder of claim 1, wherein: the sleeve (3) can be screwed completely into or out of the fastening element (4).

10. The concrete inspection well fabricated ladder of claim 1, wherein: the ladder rack (1) is made of plastic steel, one end, close to the threaded part (2), of the ladder rack (1) is vertical and does not have a hook, and one end, far away from the threaded part (2), of the ladder rack is wrapped by a rubber anti-slip sleeve.