CN219454921U - Pipeline measuring device - Google Patents

Abstract

The utility model relates to the technical field of measuring tools, in particular to a pipeline measuring device. The utility model aims to provide a pipeline measuring device which has the technical characteristics of portability, relatively simple measuring flow, difficult corrosion and small error. The technical scheme of the utility model is as follows: the utility model provides a pipeline measuring device, includes outer tube and sliding fit in its hole, and outer tube and inner sliding rod are fixed with respectively in the tip of same one side and measure the claw, and two are measured and are parallel to each other between the claw, and the outer wall system of inner sliding rod has the scale.

Description

Pipeline measuring device

Technical Field

The utility model relates to the technical field of measuring tools, in particular to a pipeline measuring device.

Background

The investigation work of the drainage system is to clearly and thoroughly comb the underground pipe network system, and how to comb the underground pipe network clearly, so that a plurality of inspection wells are opened and observed, and the inner diameter measurement of the pipeline is one of a plurality of inspection parameters and is an important one, and the reason is that: the pipe diameter of the pipeline is related to drainage flow, the pipe diameter is too small, the flow cannot meet the current drainage requirement, the pipe diameter is too large, unnecessary resource waste is caused, and therefore the measurement work of the pipeline is very important.

The following three types of commonly used pipeline measuring devices are known to the public:

1. and measuring by a steel tape measure. The measuring mode has the advantages of simplicity and convenience in operation. The steel tape measure can be carried about, is light and handy, is simple and easy to operate, can measure at any time and any place, and is not limited by the topography and the pipe diameter. The steel tape has the defects that the steel tape is softer in texture, the steel tape is easy to bend in the measuring process, so that the observation result is not accurate enough, and particularly, the steel tape needs to obliquely measure the pipe diameter when the situation that the well chamber is larger or the water level in the well chamber is higher is met, and the like, so that the softer steel tape is limited, and accurate data is difficult to obtain.

2. And measuring by a drainage pipeline measuring rod. The measuring mode generally uses a single claw L-shaped measuring rod to stretch up and down to respectively measure the depths of the top and bottom of the pipe, and the purpose of measuring the pipe is achieved by calculating the difference value, so that the pipe diameter of the connecting pipe of the inspection well and the buried depth of the bottom of the inspection well can be detected. The disadvantage is that the pipe diameter data can be obtained by at least two measurements, and the manual reading error is likely to be caused by multiple measurements. The measuring rod is easy to rust and corrode, has large weight and is inconvenient for field carrying; in the operation process, each joint is easy to fall off and is difficult to salvage; meanwhile, the steel tape is required to be used in a matched manner for measurement, the measurement flow is complex, errors are easy to occur, the buried depth cannot be directly read, and calculation errors are easy to occur.

3. And measuring by an infrared range finder. The measuring mode is similar to the measuring mode of the steel tape, the operation is simple and convenient, the measuring mode is superior to the measuring mode of the steel tape in that the measuring mode has large observation distance and high precision, and the phenomenon of reading error caused by bending of the body is avoided. The disadvantage is that for larger wells or water in the pipe, infrared light cannot be measured.

Disclosure of Invention

The utility model aims to overcome the problems in the background technology and provides a pipeline measuring device which has the technical characteristics of portability, relatively simple measuring flow, difficult corrosion and small error.

The technical scheme adopted by the utility model is as follows:

the utility model provides a pipeline measuring device, includes outer tube and sliding fit in its hole, and outer tube and inner sliding rod are fixed with respectively in the tip of same one side and measure the claw, and two are measured and are parallel to each other between the claw, and the outer wall system of inner sliding rod has the scale.

Preferably, the outer wall of the inner slide rod is provided with at least one guide groove extending along the axial direction of the inner slide rod, and the outer sleeve is radially provided with at least one guide block inserted into the guide groove and in sliding fit with the guide groove.

Preferably, the scale of the scale gradually increases from one end near the measuring claw to the other end.

Preferably, the outer sleeve is provided with a screw hole penetrating through the pipe wall, and a fastening screw rod used for propping up the inner slide rod to prevent the inner slide rod from moving axially is arranged in the screw hole.

Preferably, the outer sleeve and the inner slide rod are connected with the respective measuring claws through a thread structure or an inserting structure, and one ends of the outer sleeve and the inner slide rod, which are far away from the measuring claws, are provided with the thread structure or the inserting structure for connecting the respective extension pipes.

Preferably, the outer sleeve, the inner sleeve and the measuring claw are all made of carbon fibers.

Preferably, a plurality of plastic linear bearings are arranged between the inner hole wall of the outer sleeve and the outer wall of the inner slide rod.

Preferably, the inner slide is of solid construction.

Preferably, the measuring claw is of solid construction.

The utility model has the beneficial effects that:

1. the outer sleeve, the inner slide rod and the measuring claw are made of carbon fiber, have the characteristics of light weight, high strength, corrosion resistance and high modulus, and can effectively solve the problems that the steel tape is softer in texture, is easy to bend in the measuring process, causes inaccurate observation results, is easy to rust and corrode in the measuring rod of the drainage pipeline, and is heavy in weight and inconvenient to carry.

2. The utility model adopts a mechanical structure measurement mode, and finishes measurement work by reading the scribing on the inner slide bar, has simple structure, long service life and low failure rate, and solves the problems that the measurement flow is complex, errors are easy to occur, the buried depth cannot be directly read, and calculation errors are easy to occur.

3. The utility model uses the plastic linear bearing, has self-lubricating property, long service life, corrosion resistance and low noise in operation, and has certain vibration absorption function.

4. Compared with the traditional single-claw L-shaped measuring rod, the double-claw measuring rod not only reduces the systematic error and the human error caused by repeated measurement in the measuring process, but also is easy to operate, and simultaneously solves the problem of inconvenient measurement caused by overlarge well chamber of the inspection well.

5. The guide groove and the guide block can guide the inner slide rod to axially slide in the outer sleeve, and simultaneously limit the circumferential rotation of the inner slide rod, so that the two measuring claws can be always parallel, and the measuring work is convenient.

6. The fastening screw rod can lock the position of the inner slide rod, so that the change of reading caused by the sliding of the inner slide rod relative to the outer sleeve is avoided, and the accuracy of measurement is ensured.

Through the above means, the problems that the pipeline measuring device is easy to corrode, heavy in weight and inconvenient to carry are solved, and meanwhile, the problems that errors are easy to cause due to multiple observations and the conventional observing means cannot be solved under certain special conditions are solved, so that the working efficiency and the working quality are improved, complex procedures of multiple measurements are reduced, the working precision is improved, and the errors are reduced.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1.

FIG. 3 is a schematic diagram illustrating the operation of an embodiment of the present utility model.

The drawing is marked: the device comprises an inner slide bar 1, an outer sleeve 2, a plastic linear bearing 3, a measuring claw 4, a fastening screw 5, a graduated scale 6, a guide groove 7 and a guide block 8.

Detailed Description

The objects, technical solutions and advantages of the present utility model will be further described with reference to the accompanying drawings and examples, but the present utility model is not limited to the following examples, for the purpose of making the objects, technical solutions and advantages of the present utility model more clearly understood by those skilled in the art.

It should also be noted that the terms "disposed," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

As shown in fig. 1, the present embodiment provides a pipe measuring device, which includes an outer sleeve 2 and an inner slide rod 1 slidably fitted in an inner hole thereof, and generally, the length of the inner slide rod 1 is greater than the length of the outer sleeve 2. As shown in fig. 1 and 2, the outer sleeve 2 is provided with a screw hole penetrating through the pipe wall, and a fastening screw 5 for tightly pushing the inner slide 1 to prevent axial movement of the inner slide is arranged in the screw hole. The outer sleeve 2 and the inner slide rod 1 are respectively fixed with a measuring claw 4 at the end part of the same side, the two measuring claws 4 are parallel to each other and extend outwards along the radial directions of the outer sleeve 2 and the inner slide rod 1, the outer wall of the inner slide rod 1 is provided with a graduated scale 6, the graduation of the graduated scale 6 is gradually increased from one end close to the measuring claw 4 to the other end, and generally, the graduation close to one end of the measuring claw 4 is 0. In order to prevent the displacement of the measuring jaw 4 due to the relative rotation between the outer sleeve 2 and the inner slide 1, as shown in fig. 2, the outer wall of the inner slide 1 is provided with at least one guide groove 7 extending in the axial direction thereof, and the outer sleeve 2 is provided radially with at least one guide block 8 which engages in the guide groove 7 in a sliding manner.

In order to facilitate the installation and the disassembly, the outer sleeve 2 and the inner slide rod 1 are connected with the respective measuring claws 4 in a conventional quick-disassembly manner such as a threaded structure or an inserting structure, the outer sleeve 2 and the inner slide rod 1 are provided with the threaded structure or the inserting structure for connecting the respective extension pipes at one end far away from the measuring claws 4, the number of the extension pipes is usually one to two, and the two ends of each section are provided with corresponding threaded structures or inserting structures.

In order to reduce the weight, be convenient for carry and avoid rusting, improve corrosion resistance, outer tube 2, interior slide bar 1 and measuring claw 4 all adopt carbon fiber to make. Meanwhile, a plurality of plastic linear bearings 3 are arranged between the inner hole wall of the outer sleeve 2 and the outer wall of the inner slide rod 1, and obviously, the plastic linear bearings 3 are required to be staggered with the guide blocks 8 and the fastening screw 5, and the plastic linear bearings 3 are generally arranged at two ends and the middle position of the inner hole of the outer sleeve 2. In order to ensure the strength, the excessive bending in the measuring process is avoided to influence the measuring precision, and the inner slide rod 1 and the measuring claw 4 are of solid structures.

The working principle of the utility model is shown in fig. 3, in the original state, the two measuring claws 4 are gathered together, and at the moment, one end of the outer sleeve 2 with the measuring claw 4 is aligned with the 0 scale of the graduated scale 6. During measurement, the measuring claw 4 of the inner slide rod 1 is placed at the bottom of the pipe and kept unchanged, the outer sleeve 2 moves upwards, the measuring claw 4 connected with the outer sleeve 2 moves upwards along with the inner slide rod, the outer sleeve 2 stops when the measuring claw 4 moves to the top of the pipe and clings to the inner wall of the pipe, the fastening screw 5 is screwed at the moment, and the inner diameter of the pipe (namely the length L in the measurement state in fig. 3) can be obtained by directly reading the scale pointed by the end face of the outer sleeve 2 on the scale 6, so that the measurement purpose is achieved.

In this embodiment, the final measurement is completed by reading the scale on the scale 6 by using a mechanical structure measurement mode different from the traditional tape measure, namely the outer sleeve 2, the inner slide rod 1 and the fastening screw 5 which can slide relatively.

The foregoing description is only of the preferred embodiments of the present utility model, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The utility model provides a pipeline measuring device, its characterized in that includes outer tube (2) and sliding fit in its hole interior slide bar (1), and outer tube (2) and interior slide bar (1) are fixed with respectively one respectively and measure claw (4) in the tip of same one side, and are parallel to each other between two measurement claws (4), and the outer wall of interior slide bar (1) is equipped with scale (6).

2. A pipe measuring device according to claim 1, characterized in that the outer wall of the inner slide (1) is provided with at least one guide groove (7) extending in the axial direction thereof, and that the outer sleeve (2) is provided radially with at least one guide block (8) inserted into the guide groove (7) and slidably fitted with the guide groove (7).

3. A pipeline measurement device as claimed in claim 2, wherein: the scale of the graduated scale (6) gradually increases from one end close to the measuring claw (4) to the other end.

4. A pipe measuring device as claimed in claim 3, wherein: the outer sleeve (2) is provided with a screw hole penetrating through the pipe wall, and a fastening screw (5) for propping the inner slide rod (1) to prevent the inner slide rod from moving axially is arranged in the screw hole.

5. A pipeline measurement device as claimed in claim 4, wherein: the outer sleeve (2) and the inner slide rod (1) are connected with the respective measuring claws (4) through threaded structures or plug structures, and the threaded structures or plug structures for connecting the respective extension pipes are arranged at one ends of the outer sleeve (2) and the inner slide rod (1) far away from the measuring claws (4).

6. A pipeline measurement device as claimed in any one of claims 1 to 5, wherein: the outer sleeve (2), the inner slide (1) and the measuring claw (4) are all made of carbon fibers.

7. A pipeline measurement device as claimed in claim 6, wherein: a plurality of plastic linear bearings (3) are arranged between the inner hole wall of the outer sleeve (2) and the outer wall of the inner slide rod (1).

8. A pipeline measurement device as claimed in claim 7, wherein: the inner slide rod (1) is of a solid structure.

9. A pipeline measurement device as claimed in claim 8, wherein: the measuring claw (4) is of a solid structure.