Carbonization depth measuring instrument

Abstract

The utility model relates to the technical field of depth measurement, and discloses a carbonization depth measuring instrument which comprises a guide rod, and one end of the guide rod is used for being connected with a measuring head; the guide rod is used for being connected with the end part of the measuring head and penetrates through the guide sleeve and is fixedly connected with the guide sleeve; the other end of the guide rod is fixedly connected into the spring seat, and a sliding guide part is formed at the end, close to the guide sleeve, of the spring seat; and the spring sleeve is arranged between the guide sleeve and the spring seat, the spring sleeve is in sliding fit with the sliding guide part, a compression spring is arranged in the spring sleeve, the guide rod is sleeved with the compression spring, and the end of the compression spring abuts against the spring sleeve and the spring seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to depth measurement technical field especially relates to a carbonization depth measuring instrument. BACKGROUND

[0002] The carbonization depth measuring instrument is an instrument for detecting the carbonization depth of materials such as concrete. By measuring the carbonization depth, the risk of corrosion of steel bars in concrete can be determined to provide a basis for structure maintenance and repair. It can also be used to study the carbonation process and mechanism of concrete, compare the carbonation performance of concrete under different mix proportions and curing conditions, and optimize the formula and construction technology of concrete materials to adapt to different environments. It has been widely used in the field of detection equipment technology. The existing concrete carbonization depth automatic detection device uses a drill bit or a chisel to drill a hole in the surface of the concrete, then sprays a phenolphthalein alcohol solution into the hole, and finally measures it with a caliper. The utility model patent with the application number CN201921502241.0 discloses a carbonization depth measuring instrument, which drives the probe to probe down by rotating the threaded rod. However, the operation is not convenient. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a carbonization depth measuring instrument that is easy to operate.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A carbonization depth measuring instrument comprises

[0006] A guide rod, one end of the guide rod is used to connect a measuring head,

[0007] A guide sleeve, the end of the guide rod connecting the measuring head penetrates through and is fixedly connected with the guide sleeve,

[0008] A spring seat, the other end of the guide rod is fixedly connected in the spring seat, and the end of the spring seat close to the guide sleeve is formed with a sliding guide part,

[0009] A spring sleeve, the spring sleeve is arranged between the guide sleeve and the spring seat, and the spring sleeve is in sliding fit with the sliding guide part, a compression spring is arranged in the spring sleeve, the compression spring is arranged on the guide rod, and the ends of the compression spring are respectively abutted against the spring sleeve and the spring seat.

[0010] Further, the end of the spring seat close to the spring sleeve is formed with a first connecting part, the end of the spring sleeve close to the spring seat is formed with a second connecting part, the first connecting part and the second connecting part are used to install a flexible connecting piece, and the flexible connecting piece is covered outside the sliding guide part.

[0011] Further, a guide sliding rail is formed on the spring seat, and a sliding guide is fixedly connected to the spring sleeve and slidably matched with the guide sliding rail.

[0012] Further, a plurality of annular mounting holes are formed on the periphery of the spring sleeve.

[0013] Further, the guide rod and the guide sleeve are connected through a threaded fastener, and the guide rod and the spring seat are connected through a threaded fastener.

[0014] Further, the inner diameter of the portion of the spring sleeve, on which the compression spring is mounted, is greater than the inner diameter of the portion matched with the sliding guide part, and a transition part is arranged between the portion of the spring sleeve, on which the compression spring is mounted, and the portion matched with the sliding guide part.

[0015] The present application has the following beneficial effects:

[0016] The present application sets the guide rod, the guide sleeve, the spring seat and the spring sleeve, sets the compression spring inside the spring sleeve, provides a stable transmission structure by matching the spring seat and the spring sleeve, fixes the spring sleeve, makes the guide rod and the spring sleeve slide relative to each other by extruding the spring sleeve, drives the measuring head to move, and thus improves the convenience of operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a cross-sectional view of the present application in an assembled state;

[0018] Fig. 2 is a cross-sectional view of the spring seat in the present application;

[0019] Fig. 3 is a cross-sectional view of the spring sleeve in the present application.

[0020] REFERENCE SIGNS:

[0021] 1, guide rod; 2, guide sleeve; 3, spring seat; 301, sliding guide part; 302, guide sliding rail; 303, first connecting part; 4, spring sleeve; 401, mounting hole; 402, second connecting part; 403, transition part; 41, sliding guide. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figs. 1 to 3 As shown in this embodiment, a carbonization depth measuring instrument is characterized by comprising a guide rod 1, a guide sleeve 2, a spring seat 3, and a spring sleeve 4. This invention, by setting up the guide rod 1, guide sleeve 2, spring seat 3, and spring sleeve 4, and by installing a compression spring inside the spring sleeve 4, utilizes the cooperation between the spring seat 3 and the spring sleeve 4 to provide a stable transmission structure, fixing the spring sleeve 4, and compressing the spring sleeve 4 to cause the guide rod 1 to slide relative to the spring sleeve 4, thereby moving the measuring head and improving the ease of operation.

[0026] One end of the guide rod 1 is used to connect to the measuring head. The end of the guide rod 1 used to connect to the measuring head passes through and is fixedly connected to the guide sleeve 2. The other end of the guide rod 1 is fixedly connected to the spring seat 3. A sliding guide portion 301 is formed at the end of the spring seat 3 near the guide sleeve 2.

[0027] The spring sleeve 4 is disposed between the guide sleeve 2 and the spring seat 3, and the spring sleeve 4 is slidably engaged with the sliding guide part 301. A compression spring (not shown in the figure) is disposed inside the spring sleeve 4. The compression spring sleeve 4 is disposed on the guide rod 1, and the ends of the compression spring abut against the spring sleeve 4 and the spring seat 3 respectively.

[0028] Furthermore, a first connecting portion 303 is formed at one end of the spring seat 3 near the spring sleeve 4, and a second connecting portion 402 is formed at one end of the spring sleeve 4 near the spring seat 3. The first connecting portion 303 and the second connecting portion 402 are used to install a flexible connector (not shown in the figure), and the flexible connector covers the outside of the sliding guide portion 301.

[0029] Furthermore, a guide rail 302 is formed on the spring seat 3, and a sliding guide 41 is fixedly connected to the spring sleeve 4, with the sliding guide 41 slidingly engaging with the guide rail 302.

[0030] Furthermore, the outer periphery of the spring sleeve 4 is formed with a plurality of annularly distributed mounting holes 401.

[0031] Furthermore, the guide rod 1 and the guide sleeve 2 are connected by threaded fasteners, and the guide rod 1 and the spring seat 3 are connected by threaded fasteners.

[0032] Furthermore, the inner diameter of the portion of the spring sleeve 4 where the compression spring is installed is larger than the inner diameter of the portion that mates with the sliding guide 301, and a transition portion 403 connects the portion of the spring sleeve 4 where the compression spring is installed and the portion that mates with the sliding guide 301.

[0033] Working principle:

[0034] There are two ways to obtain the carbonization depth in this application. One is by displacement distance. The relative displacement between the spring sleeve 4 and the spring seat 3 can be used as the carbonization depth. The displacement distance can be obtained by a distance sensor. The other is by measuring the change in elastic force on the compressed spring before and after compression. Based on Hooke's law, the change in elastic force is converted into displacement.

[0035] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A carbonization depth measuring instrument characterized by: Comprising a guide rod (1), one end of which is used to connect a measuring head, a guide sleeve (2), the end of the guide rod (1) used to connect the measuring head penetrates through and is fixedly connected with the guide sleeve (2), a spring seat (3), the other end of the guide rod (1) is fixedly connected in the spring seat (3), and the end of the spring seat (3) close to the guide sleeve (2) is formed with a sliding guide part (301), a spring sleeve (4) is arranged between the guide sleeve (2) and the spring seat (3), and the spring sleeve (4) is in sliding fit with the sliding guide part (301), a compression spring is arranged in the spring sleeve (4), the spring sleeve (4) is arranged on the guide rod (1), and the ends of the compression spring are respectively abutted against the spring sleeve (4) and the spring seat (3).

2. The carbonization depth measuring instrument according to claim 1, characterized by: The end of the spring seat (3) close to the spring sleeve (4) is formed with a first connecting part (303), the end of the spring sleeve (4) close to the spring seat (3) is formed with a second connecting part (402), the first connecting part (303) and the second connecting part (402) are used to mount a flexible connecting piece, and the flexible connecting piece is wrapped outside the sliding guide part (301).

3. The carbonization depth measuring instrument according to claim 1, characterized by: A guide sliding rail (302) is formed on the spring seat (3), and a sliding guide piece (41) is fixedly connected on the spring sleeve (4), and the sliding guide piece (41) is in sliding fit with the guide sliding rail (302).

4. The carbonization depth measuring instrument according to claim 1, characterized by: A plurality of annularly distributed mounting holes (401) are formed on the periphery of the spring sleeve (4).

5. The carbonization depth measuring instrument according to claim 1, characterized by: The guide rod (1) and the guide sleeve (2) are connected through a threaded fastener, and the guide rod (1) and the spring seat (3) are connected through a threaded fastener.

6. The carbonization depth measuring instrument according to claim 1, characterized by: The inner diameter of the part of the spring sleeve (4) in which the compression spring is mounted is greater than the inner diameter of the part in which the sliding guide part (301) is fitted, and a transition part (403) is arranged between the part of the spring sleeve (4) in which the compression spring is mounted and the part in which the sliding guide part (301) is fitted.

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