CN220582137U

CN220582137U - Auxiliary device for reducing height of leveling rod in CP III leveling measurement

Info

Publication number: CN220582137U
Application number: CN202322180489.2U
Authority: CN
Inventors: 侯运来; 刘军华; 李军; 李文通; 石栋
Original assignee: China Railway 12th Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-03-12
Anticipated expiration: 2033-08-14

Abstract

The utility model provides an auxiliary device for reducing the height of a leveling rod in CP III leveling, which comprises a vertical rod, wherein a bearing part for bearing the bottom end of the leveling rod is horizontally and outwards extended from the lower end of one side of the vertical rod, a clamping piece for clamping and fixing the leveling rod is arranged above the bearing part of the vertical rod, a plurality of slots are vertically arranged on the side surface of one side of the vertical rod, which is far away from the bearing part, one end of a connecting rod is inserted and connected in the slots, and the other end of the connecting rod is inserted and fixed in a hole reserved on the side surface of a CP III embedded part. According to the leveling rod fixing device, the leveling rod is fixed through the auxiliary device consisting of the vertical rod, the clamping piece and the bearing part, and is fixed on the CP III embedded part through the slot on the side face of the vertical rod and the connecting rod, so that the height of the leveling rod can be reduced, and the problem that the height of the leveling line is inconsistent with the height of the leveling rod in leveling measurement is solved. Compared with the observation of the erection platform bracket, the utility model has the advantages of simple installation, small size, portability, work efficiency improvement, manpower and material resource saving and extremely wide popularization value.

Description

Auxiliary device for reducing height of leveling rod in CP III leveling measurement

Technical Field

The utility model relates to the technical field of CP III leveling, in particular to an auxiliary device for reducing the height of a leveling rod in CP III leveling.

Background

The track control network (CPIII) mainly provides a control reference for track laying and operation maintenance, and the high-speed railway CPIII elevation control network adopts a precise leveling method, so that CPIII leveling is an important work in railway construction and operation stages. The general engineering measurement standard has requirements on the minimum/maximum sight line height of the leveling measurement, but the minimum sight line height is generally overrun when the leveling measurement is performed by CPIII because the embedded position of the CPIII point is higher from the ground.

At present, in order to enable the minimum sight height to meet the standard requirement, a platform is generally required to be built in advance, then a tripod is erected on the platform, then a level gauge is fixed on the tripod to conduct level measurement, the process not only consumes a large amount of manpower and material resources, but also increases the working cost, the working efficiency is low, the level gauge is erected too high, and difficulties such as difficulty in observation of a driller exist.

Disclosure of Invention

The utility model aims to provide an auxiliary device for reducing the height of a leveling rod in CP III leveling, which aims to solve the problems that the height of the leveling rod is inconsistent with the sight height of a leveling instrument due to overhigh burying of a CP III point, the leveling instrument is over-erected, and staff is not easy to observe.

The utility model solves the technical problems by adopting the following technical scheme: the utility model provides an auxiliary device for reducing leveling rod height in CP III level measurement, includes a montant, and the outside extension of one side lower extreme level of montant is equipped with the supporting part that is used for bearing leveling rod bottom, and the montant is provided with the holder that is used for the fixed leveling rod of centre gripping in the top of supporting part, and the montant is equipped with a plurality of slots in the vertical interval of side of keeping away from supporting part one side, and the one end of a connecting rod is pegged graft in the slot, and the hole reserved in the side of CP III built-in fitting is pegged graft to the other end of connecting rod.

Further, the clamping piece is a U-shaped clamp, the U-shaped clamp comprises a U-shaped plate with an opening facing the leveling rod, a bottom plate of the U-shaped plate is fixed on the vertical rod, a hand screw bolt is connected to a side plate of the U-shaped plate in a threaded mode, a hand screw part of the hand screw bolt is located on the outer side of the U-shaped plate, and the bottom end of the hand screw bolt stretches into the U-shaped plate to be propped against the leveling rod.

Further, the supporting part is provided with a limiting part which is matched with the groove at the bottom end of the leveling rod in a protruding way.

Further, the slot is a rectangular slot, and the end part of the connecting rod of the plug-in connection slot is spherical.

Further, the pitch between the slots is 100mm.

The novel simple device is simple to manufacture, the leveling rod is fixed by the auxiliary device consisting of the vertical rod, the clamping piece and the bearing part, the leveling rod is fixed on the CP III embedded piece through the side slot of the vertical rod and the connecting rod, the height of the leveling rod can be reduced, and the problem that the height of the leveling rod is not coordinated with the height of the leveling rod in leveling measurement is solved. Compared with the observation of the erection platform bracket, the utility model has the advantages of simple installation, small size, portability, work efficiency improvement, manpower and material resource saving and extremely wide popularization value.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a top view of the present utility model;

fig. 4 is a schematic installation view of the present utility model.

In the figure: 1. a vertical rod; 11. a support part; 12. a slot; 13. a limit part; 2. a U-shaped clamp; 3. screwing the bolt by hand; 4. a connecting rod; 5. a leveling rod; 6. CP III embedded parts.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, an auxiliary device for reducing the height of a leveling rod in a CP iii leveling measurement according to the present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-4, an auxiliary device for reducing the height of a leveling rod in CP iii leveling measurement comprises a vertical rod 1, a supporting portion 11 for supporting the bottom end of the leveling rod 5 is horizontally and outwardly extended from the lower end of one side of the vertical rod 1, a clamping piece for clamping and fixing the leveling rod 5 is arranged above the supporting portion 11, a plurality of slots 12 are vertically spaced on the side surface of the vertical rod 1 far away from one side of the supporting portion 11, one end of a connecting rod 4 is connected in the slots 12 in an inserting manner, and the other end of the connecting rod 4 is fixed in a reserved hole on the side surface of the CP iii embedded piece 6 in an inserting manner.

In the embodiment, the vertical rod 1 is a 30mm×30mm long aluminum block with the length of 520mm, the bearing part 11 is made of stainless steel with the length of 53mm, the width of 30mm and the thickness of 10mm, and the upper end of the stainless steel is embedded with a hemispherical limiting part 13 with the length of 10mm for being matched with a groove at the lower end of the leveling rod 5 so as to better place the leveling rod 5. The stainless steel supporting part 11 is fixed at the bottom of the vertical rod 1 through 2 screws. A rectangular slot 12 with the length of 30mm, the width of 20mm and the depth of 20mm is cut at a position 10mm away from one end of the vertical rod 1 on the vertical rod 1 through a machine tool, and one end of a connecting rod 4 is spherical and is placed in the rectangular slot 12. 4 rectangular slots 12 with the same size are sequentially cut downwards on the vertical rod 1, the center distance is 100mm, and the distance between the top surface of the lowest slot 12 and the upper edge of the bearing part 11 is 200mm. The four height differences of 200mm, 300mm, 400mm and 500mm can be adjusted by arranging the connecting rods 4 in different rectangular slots 12.

The clamping piece can adopt the spring clamp, in this embodiment, the clamping piece is U type clamp 2, and U type clamp 2 adopts wide 30mm, thick 5 mm's steel sheet to make the U template, fixes the bottom plate of U template to montant 1 with 2 screws, and bolt 3 is twisted to a hand in U template side board installation, and it is fixed with levelling rod 5 and U type clamp 2, montant 1 to twist bolt 3 through adjusting the hand.

As shown in fig. 4, when CP iii leveling is measured, the bottom end of the leveling rod 5 is first placed on the supporting portion 11 at the lower portion of the auxiliary device, the hemispherical limiting portion 13 on the supporting portion 11 is tightly attached to the bottom plate of the leveling rod 5, and the auxiliary device is fixed below the leveling rod 5 by adjusting the hand-screwed bolt 3 on the U-shaped clamp 2 on the auxiliary device, so that the leveling rod 5 and the auxiliary device are integrated.

Then, firstly inserting the connecting rod 4 into the preformed hole of the CP III embedded part 6, hanging the leveling rod 5 on the spherical end of the outer side of the connecting rod 4 through the corresponding slot 12 on the vertical rod 1 of the auxiliary device according to the actual condition of the site, and adjusting the leveling rod 5 until the leveling rod 5 is vertical and then leveling the leveling rod 5 by observing the leveling bubbles on the leveling rod 5. When a leveling observer reads leveling readings, the lowering height of the corresponding point position, namely the height difference between the lower edge of the leveling rod 5 and the sphere end of the connecting rod 4, is recorded, and the corresponding height difference is calculated in the subsequent leveling industry processing, so that the height of the corresponding CP III point is obtained.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides an auxiliary device for reducing leveling rod height in CP III level measurement, a serial communication port, including a montant (1), one side lower extreme level outside extension of montant (1) is equipped with bearing portion (11) that are used for bearing leveling rod (5) bottom, montant (1) are provided with the holder that is used for centre gripping fixed leveling rod (5) in the top of bearing portion (11), montant (1) are equipped with a plurality of slots (12) in the vertical interval of side of keeping away from bearing portion (11) one side, the one end of spliced connection head rod (4) in slot (12), the hole of reserving in the side of CP III built-in fitting (6) is fixed in the other end grafting of connecting rod (4).

2. The auxiliary device for reducing the height of the leveling staff in the CP III leveling measurement according to claim 1 is characterized in that the clamping piece is a U-shaped clamp (2), the U-shaped clamp (2) comprises a U-shaped plate with an opening facing the leveling staff, a bottom plate of the U-shaped plate is fixed on the vertical rod (1), a hand-screwing bolt (3) is connected to a side plate of the U-shaped plate in a threaded manner, a hand-screwing part of the hand-screwing bolt (3) is positioned on the outer side of the U-shaped plate, and the bottom end of the hand-screwing part stretches into the U-shaped plate to be abutted against the leveling staff (5).

3. The auxiliary device for reducing the height of the leveling rod in the level measurement of the CP III according to claim 1, wherein the supporting part (11) is convexly provided with a limiting part (13) matched with the groove at the bottom end of the leveling rod (5).

4. The auxiliary device for reducing the height of the leveling staff in the level measurement of the CP iii according to claim 1, wherein the slot (12) is a rectangular slot, and the end of the connecting rod (4) of the plug-in connection slot (12) is spherical.

5. An auxiliary device for reducing the height of a leveling staff in CP iii leveling according to claim 1 or 4, characterized in that the spacing between the slots (12) is 100mm.