CN215639351U - Reinforced concrete protective layer thickness measuring device before pouring - Google Patents
Reinforced concrete protective layer thickness measuring device before pouring Download PDFInfo
- Publication number
- CN215639351U CN215639351U CN202121298993.7U CN202121298993U CN215639351U CN 215639351 U CN215639351 U CN 215639351U CN 202121298993 U CN202121298993 U CN 202121298993U CN 215639351 U CN215639351 U CN 215639351U
- Authority
- CN
- China
- Prior art keywords
- displacement sensor
- protective layer
- clamping piece
- fixed clamping
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a reinforced concrete protective layer thickness measuring device before pouring, which comprises a handheld telescopic rod, a fixed clamping piece and a displacement sensor, wherein one end of the displacement sensor is connected with the fixed clamping piece, the other end of the displacement sensor is in point contact with the surface point of a protective layer template placed outside, and the position where the displacement sensor is connected with the fixed clamping piece is electrically connected with an external digital display instrument through an external cable; the handheld telescopic rod is perpendicular to the displacement sensor and is assembled on the upper end face of the fixed clamping piece; the fixed clamping piece is parallel to the end faces of two sides of the assembly position of the displacement sensor and is provided with a triangular prism in an outward extending mode, and the triangular prism far away from one side of the displacement sensor is in point contact with the inner surface of the steel bar. The device solves the problem that the construction quality is influenced because the thickness of the protective layer cannot be accurately measured due to the adoption of a low-precision ruler in the prior art.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a device for measuring the thickness of a reinforced concrete protective layer before pouring.
Background
The requirements of concrete structure design specifications on the thickness of a reinforced concrete protective layer in the field of building construction are clearly specified, because an excessively thick protective layer can not only cause economic waste, but also influence the moment of a reinforcing steel bar, so that the reinforcing steel bar can not exert the use performance, and when the thickness of the protective layer is excessively small, the reinforcing steel bar exposes the reinforcing steel bar after the concrete protective layer is poured, so that concrete carbonization and reinforcing steel bar corrosion are caused, and the strength and durability of a component are influenced. In the field of building construction, the thickness of a reinforced concrete protective layer refers to the distance from the surface of concrete to the outer edge of the nominal diameter of an outermost reinforcing steel bar in the reinforced concrete protective layer, the distance is usually measured manually before the concrete is poured, the used measuring tools are usually simple measuring tools such as a tape measure and a ruler, the measuring method is usually that a worker holds the ruler and other tools to enter a pouring structure for measurement, the measuring precision of the tape measure and the ruler is limited, the manual reading has errors, and the thickness of the protective layer can only be measured according to visual observation and estimation due to the fact that the worker cannot enter a certain pouring structure, the accuracy of the measured result is often not guaranteed, and the construction quality is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems to a certain extent, provides a device for measuring the thickness of a protective layer of reinforced concrete before pouring, and solves the problem that the construction quality is influenced because the thickness of the protective layer cannot be accurately measured due to the adoption of a low-precision ruler in the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the device for measuring the thickness of the protective layer of the reinforced concrete before pouring comprises a handheld telescopic rod, a fixed clamping piece and a displacement sensor, wherein one end of the displacement sensor is connected with the fixed clamping piece, the other end of the displacement sensor is in point contact with the surface point of a protective layer template placed outside, and the position where the displacement sensor is connected with the fixed clamping piece is electrically connected with an external digital display instrument through an external cable; the handheld telescopic rod is perpendicular to the displacement sensor and is assembled on the upper end face of the fixed clamping piece; the fixed clamping piece is parallel to the end faces of two sides of the assembly position of the displacement sensor and is provided with a triangular prism in an outward extending mode, and the triangular prism far away from one side of the displacement sensor is in point contact with the inner surface of the steel bar.
Preferably, handheld grab handle and horizontal calibration piece are equipped with above the handheld telescopic link, handheld grab handle and the perpendicular be assembled between/be connected between of horizontal calibration piece, horizontal calibration piece and the perpendicular be assembled between/be connected between of handheld telescopic link.
Preferably, the handheld telescopic rod is in threaded assembly connection with a first mounting hole formed in the fixed clamping piece.
Preferably, the fixed clamping piece is provided with an assembly groove matched with the appearance of the handheld telescopic rod, the fixed clamping piece protrudes out the lower end part of the assembly groove is provided with a square block, the side surface of the square block is provided with a second mounting hole in a penetrating mode, a fastening screw rod is assembled in the second mounting hole, the fastening screw rod is reduced through screwing, the diameter of the assembly groove is reduced, and therefore the end, penetrating through the displacement sensor in the assembly groove, of the fixed clamping piece is fixed to the one end of the displacement sensor in the assembly groove.
Preferably, the displacement sensor comprises a body cylinder, a movable measuring rod and a roller contact, the body cylinder and the roller contact are fixedly arranged at two ends of the movable measuring rod respectively, the body cylinder is inserted into the assembling groove, and the roller contact is vertically contacted with the surface of the protective layer template.
Preferably, the diameter of the body cylinder is smaller than that of the assembling groove, and the length of the body cylinder is the same as that of the assembling groove.
Preferably, the use method of the reinforced concrete protective layer thickness measuring device before pouring comprises the following steps:
s1, setting the zero position of a displacement sensor at triangular prism contact points on two sides according to the actual position of a protective layer to be measured, and setting an alarm danger value;
s2, adjusting the length of the telescopic rod to enable the triangular prism contact point to abut against the outermost or inner position of the steel bar at the measuring point position;
s3, adjusting the horizontal calibration block to enable the mercury bubbles in the horizontal calibration block to be in a horizontal central position, keeping the triangular prism contact point to be always in the outermost or inner position of the reinforcing steel bar, and enabling the observation lamp to be normally on;
and S4, reading data of the digital display instrument.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the fixed clamping piece is matched with the displacement sensor for use, and different displacement sensors can be replaced according to the requirements of the thicknesses of the protective layers under different building working conditions; the positions of piers, pit bottoms and the like which cannot be moved down can be measured through the connected telescopic adjusting rods, the thickness of the measured protective layer can be better guaranteed to be the distance from the concrete to the surface to the outer edge of the nominal diameter of the steel bar at the outermost side of the protective layer by adopting the horizontal calibrating block, and the early warning prompting effect can be achieved through the digital display instrument when the thickness of the protective layer is outside the safety range.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
In the drawings:
FIG. 1 is a structural diagram of a device for measuring the thickness of a protective layer of reinforced concrete before casting according to the present invention;
FIG. 2 is a block diagram of the displacement sensor of the present invention;
FIG. 3 is an assembly view of the fixed clamp and displacement sensor of the present invention;
fig. 4 is a side view of the stationary clamp of the present invention.
Reference numerals: 1, holding a telescopic rod by hand; 2-fixing the clamping piece; 3-a displacement sensor; 301-body cylinder; 302-movable measuring rod; 303-roller contacts; 4-protective layer template; 5-digital display instrument; 6-triangular prism; 7-reinforcing steel bars; 8-hand-held grab handle; 9-horizontal calibration block; 10-an assembly groove; 11-fastening the screw.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the utility model. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 1-4, the utility model provides a device for measuring the thickness of a protective layer of a steel bar 7 concrete before pouring, which comprises a handheld telescopic rod 1, a fixed clamping piece 2 and a displacement sensor 3, wherein one end of the displacement sensor 3 is connected with the fixed clamping piece 2, the other end of the displacement sensor is in point contact with the surface of a protective layer template 4 placed outside, the position where the displacement sensor 3 is connected with the fixed clamping piece 2 is electrically connected with an external digital display instrument 5 through an external cable, specifically, the displacement sensor 3 records and displays distance data, the digital display instrument 5 is provided with an external zero clearing terminal, zero clearing can be controlled by an external switch, and two control values can be set for controlling distance and alarming; the handheld telescopic rod 1 is perpendicular to the displacement sensor 3 and is assembled on the upper end face of the fixed clamping piece 2; the fixed clamping piece 2 is parallel to the end faces of two sides of the assembly position of the displacement sensor 3 and is provided with a triangular prism 6 in an outward extending mode, and the triangular prism 6 far away from one side of the displacement sensor 3 is in point contact with the inner surface of the steel bar 7.
Wherein, 1 top of handheld telescopic link is equipped with handheld grab handle 8 and horizontal calibration piece 9, handheld grab handle 8 and the perpendicular be assembled between/be connected between of horizontal calibration piece 9, horizontal calibration piece 9 and the perpendicular be assembled between/be connected between of handheld telescopic link 1.
The handheld telescopic rod 1 is in threaded assembly connection with a first mounting hole formed in the fixed clamping piece 2.
Wherein, fixed holder 2 be equipped with 1 appearance assorted assembly groove 10 of handheld telescopic link, fixed holder 2 is outstanding assembly groove 10 lower extreme position is equipped with square piece, square piece side runs through and is equipped with the second mounting hole, and be equipped with fastening screw 11 in the second mounting hole, through screwing fastening screw 11 reduces the diameter of assembly groove 10 to will alternate the one end of displacement sensor 3 in the assembly groove 10 is fixed on fixed holder 2.
The displacement sensor 3 comprises a body cylinder 301, a movable measuring rod 302 and a roller contact 303, wherein the body cylinder 301 and the roller contact 303 are fixedly arranged at two ends of the movable measuring rod 302 respectively, the body cylinder 301 is inserted into the assembling groove 10, and the roller contact 303 is vertically contacted with the surface of the protective layer template 4; specifically, the diameter of the body cylinder 301 is smaller than the diameter of the assembly groove 10, and the length of the body cylinder 301 is the same as that of the assembly groove 10.
In the embodiment, the fixed clamping piece 2 is matched with the displacement sensor 3 for use, and different displacement sensors 3 can be replaced according to the thickness requirements of protective layers under different building working conditions; and can measure the position that people such as pier, the pit bottom can't go down through the telescopic adjusting pole of connecting, adopt horizontal calibration piece 9 can be better guarantee the protective layer thickness of surveying for the distance between the surface and its inside outside reinforcing bar 7 nominal diameter outward flange of measuring, can play the suggestion early warning effect through digital display instrument 5 when the protective layer thickness is outside the safety range moreover.
The use method of the device for measuring the thickness of the concrete protective layer of the steel bar 7 before pouring in the embodiment comprises the following steps:
s1, according to the actual position of a protective layer to be measured, setting the zero point position of a displacement sensor 3 at the contact points of triangular prisms 6 on two sides, and setting an alarm danger value, wherein firstly, the displacement sensor 3 is put into a fixed clamping tool 4, so that the edges of a body cylinder 301 of the displacement sensor 3 are flush with the edges of the triangular prisms 6 on two sides of a fixed clamping piece 2, the zero point of the displacement sensor 3 is set at the rear end of the cylinder body of the displacement sensor 3, and the distance measured by the displacement sensor 3 is from the zero point position to the top end of a rolling contact; screwing a fastening screw into a horizontal hole at the upper part of the fixed clamping tool, and screwing to reduce the diameter of the cut at the center of the fixed clamping piece 2 and fix the displacement sensor 3;
s2, adjusting the length of the telescopic rod to enable a contact point of the triangular prism 6 to abut against the outermost or inner position of the steel bar 7 at the measuring point position, specifically, placing the fixed clamping piece 2 and the displacement sensor 3 at a position of a protective layer to be measured in thickness, abutting the edge of the triangular prism 6 on the surface of the fixed clamping piece 2 against the surface of the steel bar 7 at the outermost side of the inner part, and abutting a rolling contact of the displacement sensor 3 against the protective layer template 4;
s3, adjusting the horizontal calibration block 9 to enable the mercury bubbles in the horizontal calibration block 9 to be in a horizontal central position, keeping the contact point of the triangular prism 6 and the outermost or inner position of the reinforcing steel bar 7 all the time, and enabling the observation lamp to be normally on;
and S4, reading data of the digital display instrument 5.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a reinforced concrete protective layer thickness measuring device before pouring which characterized in that: the device comprises a handheld telescopic rod, a fixed clamping piece and a displacement sensor, wherein one end of the displacement sensor is connected with the fixed clamping piece, the other end of the displacement sensor is in point contact with the surface point of a protective layer template placed outside, and the position where the displacement sensor is connected with the fixed clamping piece is electrically connected with an external digital display instrument through an external cable; the handheld telescopic rod is perpendicular to the displacement sensor and is assembled on the upper end face of the fixed clamping piece; the fixed clamping piece is parallel to the end faces of two sides of the assembly position of the displacement sensor and is provided with a triangular prism in an outward extending mode, and the triangular prism far away from one side of the displacement sensor is in point contact with the inner surface of the steel bar.
2. The device for measuring the thickness of the pre-casting reinforced concrete protective layer according to claim 1, wherein: the handheld telescopic link top is equipped with handheld grab handle and horizontal calibration piece, handheld grab handle and the perpendicular be assembled between/be connected between of horizontal calibration piece, the perpendicular be assembled between/be connected between of horizontal calibration piece and handheld telescopic link.
3. The device for measuring the thickness of the pre-casting reinforced concrete protective layer according to claim 2, wherein: the handheld telescopic rod is in threaded assembly connection with the first mounting hole formed in the fixed clamping piece.
4. The device for measuring the thickness of the pre-casting reinforced concrete protective layer according to claim 1, wherein: the fixed clamping piece is provided with an assembly groove matched with the appearance of the handheld telescopic rod, the fixed clamping piece protrudes out the lower end part of the assembly groove is provided with a square block, the side surface of the square block is provided with a second mounting hole in a penetrating mode, a fastening screw rod is assembled in the second mounting hole, the diameter of the assembly groove is reduced through screwing the fastening screw rod, and therefore the diameter of a displacement sensor in the assembly groove is inserted and fixed on the fixed clamping piece.
5. The device for measuring the thickness of the pre-casting reinforced concrete protective layer according to claim 1, wherein: the displacement sensor comprises a body cylinder, a movable measuring rod and a roller contact, wherein the body cylinder and the roller contact are fixedly arranged at two ends of the movable measuring rod respectively, the body cylinder is inserted into the assembling groove, and the roller contact is vertically contacted with the surface of the protective layer template.
6. The device for measuring the thickness of the pre-casting reinforced concrete protective layer according to claim 5, wherein: the diameter of the body cylinder is smaller than that of the assembling groove, and the length of the body cylinder is the same as that of the assembling groove.
7. The device for measuring the thickness of the pre-casting reinforced concrete protective layer according to claim 1, wherein: the using method of the reinforced concrete protective layer thickness measuring device before pouring comprises the following steps:
s1, setting the zero position of a displacement sensor at triangular prism contact points on two sides according to the actual position of a protective layer to be measured, and setting an alarm danger value;
s2, adjusting the length of the telescopic rod to enable the triangular prism contact point to abut against the outermost or inner position of the steel bar at the measuring point position;
s3, adjusting the horizontal calibration block to enable the mercury bubbles in the horizontal calibration block to be in a horizontal central position, keeping the triangular prism contact point to be always in the outermost or inner position of the reinforcing steel bar, and enabling the observation lamp to be normally on;
and S4, reading data of the digital display instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121298993.7U CN215639351U (en) | 2021-06-10 | 2021-06-10 | Reinforced concrete protective layer thickness measuring device before pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121298993.7U CN215639351U (en) | 2021-06-10 | 2021-06-10 | Reinforced concrete protective layer thickness measuring device before pouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215639351U true CN215639351U (en) | 2022-01-25 |
Family
ID=79942645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121298993.7U Active CN215639351U (en) | 2021-06-10 | 2021-06-10 | Reinforced concrete protective layer thickness measuring device before pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215639351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116772794A (en) * | 2022-05-30 | 2023-09-19 | 南通凤成工具有限公司 | Minimally invasive detection equipment and method for reinforced concrete members of building |
-
2021
- 2021-06-10 CN CN202121298993.7U patent/CN215639351U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116772794A (en) * | 2022-05-30 | 2023-09-19 | 南通凤成工具有限公司 | Minimally invasive detection equipment and method for reinforced concrete members of building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6543144B1 (en) | Multipurpose tool | |
| CN215639351U (en) | Reinforced concrete protective layer thickness measuring device before pouring | |
| CN109572925A (en) | A kind of shipping depth gauge draws method | |
| CN210268403U (en) | Measuring scale for controlling steel bar protective layer before pouring pier stud | |
| JPH1194503A (en) | Device for measuring depth | |
| US4328619A (en) | Length and angle gauge | |
| CN211696422U (en) | Tool for detecting verticality of template | |
| CN215572739U (en) | Quick detection device of reinforcing bar interval | |
| US6976316B1 (en) | Magnetic plumb bob holder | |
| CN214793144U (en) | Special gradient measuring device of building engineering | |
| CN211626492U (en) | Building engineering straightness detection device that hangs down | |
| US20080155847A1 (en) | Corner Gauge | |
| CN215893441U (en) | Adjustable sample plate for assembling ship body | |
| CN210400217U (en) | Measuring scale for measuring plate blank | |
| CN214575801U (en) | Floor thickness real-time detection device | |
| CN219531843U (en) | Simple aluminum alloy profile elongation gauge length and measuring scale | |
| CN212806860U (en) | Box girder end waterproof layer thickness detection device | |
| CN114234773B (en) | Copper and copper alloy sheet strip side crookedness detection device | |
| CN217179435U (en) | Detect instrument of switch tie rail face width | |
| CN213874114U (en) | Pile body bending vector measuring device | |
| CN107764167B (en) | bogie safety hanging seat detection device, system and method | |
| CN218270494U (en) | Pre-construction quick high-precision digital display reinforcing steel bar protective layer measuring instrument | |
| CN214276748U (en) | Special measuring tool for thickness of steel bar protection layer at bottom of reinforced concrete beam | |
| CN213874081U (en) | Thickness detection ruler for steel bar protective layer | |
| CN218410961U (en) | Crack width measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |