CN213301069U

CN213301069U - Pit depth measuring instrument

Info

Publication number: CN213301069U
Application number: CN202022745310.XU
Authority: CN
Inventors: 赵子轩; 张嘉轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-05-28
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a pit depth measuring instrument, which comprises a positioning substrate and a measuring needle assembly, wherein the middle part of the positioning substrate is vertically provided with a counter bore as a mounting hole, and the bottom of the mounting hole is communicated with a needle post restriction hole; the measuring probe assembly comprises a measuring probe, a spring and a cover body, wherein the cover body is arranged at the top of the mounting hole, and the spring and the measuring probe are sequentially arranged in the mounting hole from top to bottom; the inner wall of the mounting hole is provided with scales, and an observation hole for observing the scales is formed in the wall of the mounting hole in a penetrating manner. The positioning substrate is placed on the surface of the measured object, the positioning substrate is moved to enable the needle post constraint hole to be opposite to the depression on the surface of the measured object, the lower end of the measuring needle tightly pushes against the bottom of the depression, and the depth of the depression to be measured is obtained by observing the moving distance of the measuring needle. The utility model discloses it is more simple and convenient to operate, and the measuring accuracy is high.

Description

Pit depth measuring instrument

Technical Field

The utility model relates to a measuring instrument particularly, is a pit concave depth measuring apparatu who uses in the building engineering field.

Background

In the field of constructional engineering, the depth of a concrete surface honeycomb is not more than 10mm, and usually, after a plunger pin is matched with a steel ruler for marking the embedding depth, the embedding depth of a needle point is measured. The prior art has complex procedures and low precision. In addition, the electrical pipe requires that the flatness does not exceed 10%, otherwise the construction quality of the cable is affected, the flatness is usually estimated by visual inspection, at present, accurate metering equipment is not available, and the numerical deviation is large.

Therefore, in order to solve the above two depth quantization problems, it is necessary to design a measuring instrument with simple detection process and effectively improved measurement accuracy.

Disclosure of Invention

The utility model aims at solving the defect that the process that exists among the prior art is loaded down with trivial details, measurement accuracy is low on the side to a pit depth measuring apparatu is provided.

In order to achieve the above object, the utility model adopts the following technical scheme:

a pit depth measuring instrument comprises a positioning base plate and a measuring pin assembly, wherein a counter bore is vertically formed in the middle of the positioning base plate and serves as a mounting hole, and a pin column restraining hole is formed in the bottom of the mounting hole in a penetrating mode; the measuring probe assembly comprises a measuring probe, a spring and a cover body, wherein the cover body is arranged at the top of the mounting hole, and the spring and the measuring probe are sequentially arranged in the mounting hole from top to bottom; the inner wall of the mounting hole is provided with scales, and an observation hole for observing the scales is formed in the wall of the mounting hole in a penetrating manner.

Furthermore, the positioning substrate is made of transparent plastic.

Furthermore, a cross-shaped measuring point positioning reticle is arranged at the bottom of the positioning substrate by taking the pin column constraint hole as the center.

Furthermore, the measuring pin comprises a pin column and a pin cap which is arranged at the top of the pin column and used for supporting the spring.

Further, the mounting hole is a cylindrical hole.

Furthermore, the cover body is circular, and the cover body is connected with the mounting hole through threads.

Further, the top surface of the cover body is provided with a tightening plate or a tightening groove.

Use the utility model provides a concave degree of depth measuring apparatu in hole places positioning substrate on the measured object surface, and the mobile positioning substrate makes the about hole of stylar just to the sunken of measured object surface, and the tight sunken bottom in probe lower extreme top obtains being surveyed sunken degree of depth through observing the distance that the probe removed. The utility model provides a pit depth measuring apparatu concave degree is applicable to the measurement of building engineering field concrete surface honeycomb degree of depth to and the concavity of electric tubular product is measured. Compared with the prior art, the method is simpler and more convenient to operate and high in measurement accuracy.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention in any way.

Fig. 1 is a schematic structural view of a pit depth measuring instrument.

FIG. 2 is an assembly view of the dimple depth gauge.

FIG. 3 is an example of a concrete surface honeycomb measurement.

Fig. 4 is a partially enlarged view of the measurement portion in fig. 3.

In the figure, 1-a positioning substrate, 2-a mounting hole, 3-a pin column restriction hole, 4-a measuring pin, 5-a spring, 6-a cover body, 7-scales, 8-an observation hole, 9-a measuring point positioning reticle, 10-a tightening plate, 11-measured concrete and 12-a pit.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings and embodiments. In addition, the features of the embodiments and examples in the present application may be combined with each other without conflict.

The utility model relates to a pit depth measuring apparatu that typical embodiment provided, as shown in fig. 1 and 2, including location base plate 1 and survey probe subassembly. A counter bore is vertically formed in the middle of the positioning base plate 1 to serve as a mounting hole 2, and a needle post restraining hole 3 is formed in the bottom of the mounting hole 2 in a penetrating mode; the measuring pin assembly comprises a measuring pin 4, a spring 5 and a cover body 6, the cover body 6 is arranged at the top of the mounting hole 2, and the spring 5 and the measuring pin 4 are sequentially arranged in the mounting hole 2 from top to bottom; the inner wall of the mounting hole 2 is provided with a scale 7, and an observation hole 8 for observing the scale 7 is formed in the wall of the mounting hole in a penetrating manner.

According to the above embodiment, when the positioning substrate 1 is used, the positioning substrate 1 is placed on the surface of a measured object, the positioning substrate 1 is moved to enable the needle post constraint hole 3 to be opposite to the depression on the surface of the measured object, the lower end of the measuring needle 4 abuts against the bottom of the depression, and the depth of the depression to be measured is obtained by observing the moving distance of the measuring needle 4. The needle pillar constraint hole 3 is used for keeping the measuring needle 4 vertical.

In the above embodiment, preferably, the 0 scale of the scale is disposed at the uppermost end, and the scale value is incremented from top to bottom. The whole height of the measuring needle is set to be equal to the distance from 0 scale of the scale to the bottom surface of the outer side of the positioning substrate, and when the needle post constraint hole 3 is located on the surface of a flat measured object, the uppermost end of the measuring needle 4 is flush with the 0 scale. When the needle pillar restriction hole 3 moves to the concave part, the measuring needle moves downwards from the scale of 0 under the action of the spring, and the scale value corresponding to the downward movement is the measured pit depth value.

In order to facilitate the observation of the surface depression of the object to be measured and the state of the probe assembly, the positioning substrate 1 is made of transparent plastic. On the basis, a cross-shaped measuring point positioning reticle 9 is arranged at the bottom of the positioning substrate 1 by taking the position of the pin column constraint hole 3 as the center. In order to ensure the pit position to be accurate, a cross vertical positioning line needs to be drawn on the measuring point before measurement, and during measurement, the measuring point positioning drawing line 9 of the measuring instrument is superposed with the cross positioning line of the measured point.

In a relatively specific embodiment, the measuring pin 4 comprises a pin column and a pin cap arranged at the top of the pin column and used for supporting a spring.

The mounting hole 2 is a cylindrical hole. The cover body 6 is circular, and the cover body 6 is connected with the mounting hole 2 through threads, so that the assembly is facilitated.

The top surface of the cover body 6 is provided with a tightening plate or a tightening groove which is used as a force application part when the cover body 6 is screwed.

The following provides a relatively specific example, which is taken as an example of the measurement of the depth of the concrete surface honeycomb, and further explains the present invention.

As shown in fig. 3 and 4, the stylus 4 and the spring 5 are first inserted into the mounting hole 2, and the cap 6 is screwed. And drawing a cross-shaped vertical extension positioning line on a measured point of the measured concrete 11. And (3) placing the positioning substrate 1 on the concrete surface, and moving the measuring needle from the scale of 0 downwards under the action of the spring 5 when the needle pillar constraint hole 3 moves to the pit 12, wherein the scale value corresponding to the downwards moving amount is the measured pit depth value. The instrument is used for measuring the honeycomb depth of the concrete surface, the operation is simpler, more convenient and more visual than the prior art, and the precision is greatly improved. The real quality of the concrete can be accurately reflected by the inspection data, and the rework repair rate is effectively reduced.

With same principle, the utility model provides a concave degree of flatness that pit concave degree of depth measuring apparatu can be used to inspect electric pipe can overcome the vision deviation, improves the subentry engineering qualification rate, predicts than prior art's range estimation, and the degree of accuracy is high, and the qualification rate is high.

The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. A pit depth measuring instrument is characterized in that: the device comprises a positioning substrate and a measuring pin assembly, wherein a counter bore is vertically formed in the middle of the positioning substrate and serves as a mounting hole, and a pin column restraining hole is formed in the bottom of the mounting hole in a penetrating manner; the measuring probe assembly comprises a measuring probe, a spring and a cover body, wherein the cover body is arranged at the top of the mounting hole, and the spring and the measuring probe are sequentially arranged in the mounting hole from top to bottom; the inner wall of the mounting hole is provided with scales, and an observation hole for observing the scales is formed in the wall of the mounting hole in a penetrating manner.

2. A pit depth measuring instrument according to claim 1, wherein: the positioning substrate is made of transparent plastic.

3. A pit depth measuring instrument according to claim 2, wherein: and a cross-shaped measuring point positioning reticle is arranged at the bottom of the positioning substrate by taking the pin column constraint hole position as the center.

4. A pit depth measuring instrument according to claim 1, 2 or 3, wherein: the measuring needle comprises a needle column and a needle cap which is arranged at the top of the needle column and used for supporting the spring.

5. A pit depth measuring instrument according to claim 4, characterized in that: the mounting hole is a cylindrical hole.

6. A pit depth measuring instrument according to claim 5, characterized in that: the cover body is circular and is in threaded connection with the mounting hole.

7. A pit depth measuring instrument according to claim 6, characterized in that: the top surface of the cover body is provided with a screwing plate or a screwing groove.