Ruler for checking length of straight section of steel bar hook

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a steel bar hook straight section length checking ruler which comprises a ruler body, and scales are arranged on the ruler body. The ruler body comprises a straight ruler and an arc-shaped disc, and one end of the straight ruler is connected with the arc-shaped disc to form the ruler body; a sliding groove is formed in the arc-shaped disc and is of an inverted-U-shaped structure. A guide column is slidably connected into the sliding groove. A circular chuck is arranged above the arc-shaped disc, and the top of the guide column is connected to the center of the circular chuck; the bottom of the guide column is connected with a stop block which is located below the arc-shaped disc. The scale indication positioner comprises an n-shaped clamping plate, the clamping plate is provided with a clamping cavity, and the clamping plate is clamped to the top of the ruler and can slide in the length direction of the ruler; the surface of the clamping plate is in threaded connection with a jackscrew; and the bottom of the clamping plate is connected with a pointer for pointing to the scales. The device is convenient and fast to use, more accurate in measurement and capable of better judging whether the steel bar hook meets the requirements of construction specifications or not.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a ruler for checking the length of a straight section of a steel bar bent hook. Background Art

[0002] Before using steel bars, it is necessary to inspect the straight sections of the steel bar hooks to ensure that they meet the requirements of construction specifications. The commonly used method currently is to rely on visual inspection and steel tape measures for inspection and control. This method has low reliability, low efficiency, and inconsistent standards. It is not conducive to the quality control of steel bar processing and installation, and cannot meet the requirements of fast and accurate inspection. Therefore, a professional inspection tool is needed. After searching, the patent with authorization announcement number CN 102353315B discloses a special inspection tool for stirrup hooks and its application method. The tool is in the shape of a symmetrical ruler with a flat surface and two long sides. The angle a between the two long sides is an arc. When using, the tool is placed in the stirrup and the stirrup is observed to see whether it fits with it. This can determine whether the bending angle and straight length meet the requirements. The device also has the following technical problems when in use: (1) When in use, hold the ruler in one hand and the stirrup to be checked in the other hand, and place one end of the ruler against the bend of the stirrup. Since the steel bar is round and the thickness of the ruler is relatively thin, the ruler is easy to slip when it is in contact with the surface of the steel bar, and it is difficult to control and cannot be quickly and accurately attached. (2) When in use, the length of the long side L of the inspection tool is observed to see whether it is equal to the length of the stirrup hook to make a judgment. In other words, the length of the long side of the tool is a certain value, but different construction requirements also have different design requirements for the length of the straight section of the hook. Therefore, its use is limited and cannot meet the needs of various working conditions. Utility Model Content

[0003] In order to solve the above problems in the prior art, a ruler for checking the length of the straight section of a steel bar hook is provided.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] The present technical solution proposes a ruler for checking the length of the straight section of a steel bar bend hook, comprising a ruler body with a scale provided on the ruler body; the ruler body comprises a straight ruler and an arc-shaped disk, one end of the straight ruler is connected to the arc-shaped disk to form the ruler body; the arc-shaped disk is provided with a slide groove, and the slide groove is an inverted "U"-shaped structure; a guide column is slidably connected in the slide groove; a circular chuck is provided above the arc-shaped disk, and the top of the guide column is connected to the center of the circular chuck; the bottom of the guide column is connected to a stop block, and the stop block is located below the arc-shaped disk.

[0006] Preferably, the slide groove includes a first positioning section, an intermediate connecting section, and a second positioning section connected in sequence; when the guide post is located in the first positioning section, a partial area of ​​the circular chuck is located outside the area defined by the contour line of the ruler body; when the guide post is located in the second positioning section, the circular chuck is completely located within the area defined by the contour line of the ruler body.

[0007] Preferably, the guide post and the circular chuck are glued or welded.

[0008] Preferably, it also includes a scale indicating locator; the scale indicating locator includes an "n"-shaped card plate, the card plate has a card cavity, the card plate is carded on the top of the ruler and can slide along the length direction of the ruler; the card plate surface is threaded with a top screw; the bottom of the card plate is connected to a pointer for pointing to the scale.

[0009] Preferably, the bottom end of the pointer is arrow-shaped.

[0010] Preferably, a butterfly handle is welded to one end of the top screw.

[0011] Preferably, a hole is provided at the end of the ruler away from the arc-shaped disk.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. A chute is provided on the arc-shaped disk, and the chute is an inverted "U"-shaped structure. The chute includes a first positioning section and a second positioning section. The guide column slides in the chute to change the position of the circular chuck, so that a part of the circular chuck can be exposed outside the ruler. In this way, when in use, the circular chuck and the ruler body can form a snapping effect. The circular chuck is clamped above the steel bar hook, which can effectively prevent the ruler body from slipping from the hook, facilitates operation and control by the staff, and can achieve rapid and accurate contact between the ruler body and the hook.

[0014] 2. By setting up a ruler, the measuring length is extended and the use limitation is small. A scale indicator locator is set on the ruler, which can facilitate the staff to locate the scale. According to the design requirements, the scale position is determined before inspection. During the inspection, it is only necessary to check whether the end of the straight section of the hook corresponds to the position of the pointer to quickly determine whether the straight length meets the requirements. There is no need to read the numbers one by one, which simplifies the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a structural diagram of embodiment 1 of the present utility model.

[0017] Figure 2 yes Figure 1 Schematic diagram of the middle chute structure.

[0018] Figure 3 yes Figure 1 Cross-sectional view of the connection between the circular chuck, guide post and stop block.

[0019] Figure 4 This is a structural diagram of the second embodiment of the present utility model.

[0020] Figure 5 yes Figure 4 Enlarged view of the mid-scale indicator locator structure.

[0021] Figure 6 yes Figure 5 Side view of the mid-scale indicator locator structure.

[0022] Figure 7 It is a structural schematic diagram of the utility model when in use.

[0023] Description of the accompanying drawings:

[0024] 1. Ruler; 2. Arc disk; 3. Scale; 4. Slide; 5. Circular chuck; 6. Guide column; 7. Hole; 8. Stopper; 9. Scale indicator locator; 91. Clamping plate; 92. Clamping cavity; 93. Top screw; 94. Butterfly handle; 95. Pointer; 10. Steel bar hook. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] Example 1

[0027] like Figure 1-3 As shown, this embodiment proposes a ruler for checking the length of the straight section of the steel bar hook 10, including a ruler body with a scale 3 provided on the ruler body; the ruler body includes a ruler 1 and an arc-shaped disk 2, one end of the ruler 1 is connected to the arc-shaped disk 2 to form the ruler body; the arc-shaped disk 2 is used to be positioned in the inner bend of the steel bar hook 10; the arc-shaped disk 2 is provided with a slide groove 4, and the slide groove 4 is an inverted "U"-shaped structure; a guide column 6 is slidably connected in the slide groove 4, and the guide column 6 can slide along the slide groove 4; a circular chuck 5 is provided above the arc-shaped disk 2, and the top of the guide column 6 is connected to the center of the circular chuck 5; the circular chuck 5 plays a positioning role; the bottom of the guide column 6 is connected to a stopper 8, and the stopper 8 is located below the arc-shaped disk 2. The connection method between the stopper 8 and the guide column 6 includes but is not limited to bonding, welding, threaded connection, etc.

[0028] The following describes in detail:

[0029] The slide 4 includes a first positioning section 41, an intermediate connecting section 42, and a second positioning section 43 connected in sequence; the first positioning section 41 and the third positioning section are both straight segment types; the intermediate connecting section 42 is an arc-shaped structure; when the guide post 6 is located in the first positioning section 41, part of the area of ​​the circular chuck 5 is located outside the area defined by the contour line where the ruler body is located, that is, a part of the area of ​​the circular chuck 5 is located outside the ruler body, and this part of the area forms a positioning function, which is used to be stuck above the hook to prevent the ruler body from slipping from the hook; when the guide post 6 is located in the second positioning section 43, the circular chuck 5 is completely located within the area defined by the contour line where the ruler body is located, forming a storage style.

[0030] The guide post 6 and the circular chuck 5 are glued or welded.

[0031] Example 2

[0032] like Figure 4-7 As shown, on the basis of embodiment 1, the entire device also includes a scale indicating locator 9; the scale indicating locator 9 includes an "n"-shaped card plate 91, the card plate 91 has a card cavity 92, and the ruler body can freely enter the card cavity 92; the card plate 91 is carded on the top of the ruler 1 and can slide along the length direction of the ruler 1; the card plate 91 surface is threadedly connected with a top screw 93, which plays a role of fixing and positioning when in use; the bottom of the card plate 91 is connected to a pointer 95 for pointing to the scale 3. The setting of the pointer 95 facilitates observation. Because the scale lines are relatively small and difficult to read, the pointer 95 can be used to mark them in advance, which is convenient for staff to check and inspect, especially for some older workers or working conditions with poor lighting conditions.

[0033] It should be noted that, as a preferred technical solution, the bottom end of the pointer 95 is arrow-shaped.

[0034] In order to facilitate the operation of workers, a butterfly handle 94 is welded to one end of the top screw 93 for easy screwing.

[0035] A hole 7 is provided at the end of the ruler 1 away from the arc-shaped disk 2 , and the ruler can be hung through the hole 7 for convenient storage when not in use.

[0036] Working principle introduction:

[0037] When not in use, the circular chuck 5 is slid to drive the guide post 6 to move along the slide groove 4, so that the guide post 6 moves to the second positioning section 43. At this time, the circular chuck 5 is completely located within the area defined by the outline of the ruler body, forming a storage style.

[0038] When in use, first slide the clamping plate 91 according to the design requirements, drive the pointer 95 to slide, make the pointer 95 point to a certain scale, and then tighten the top screw 93 to perform position positioning; then, slide the circular clamping plate 5 to drive the guide column 6 to move along the slide groove 4, so that the guide column 6 slides from the second positioning section 43 to the first positioning section 41. At this time, part of the circular clamping plate 5 is located outside the area delineated by the contour line of the ruler body, that is, the circular clamping plate 5 and the arc disk 2 form a staggered covering pattern; at this time, hold the ruler body and insert the arc disk 2 into the inner bend of the steel bar hook 10. The circular clamping plate 5 is stuck on the top of the steel bar hook 10 to form a stop to prevent the ruler body from slipping when it is against the steel bar surface; then check whether the straight section end of the steel bar hook 10 corresponds to the position of the pointer 95, so as to quickly determine whether the straight length meets the requirements.

[0039] When using this device for inspection, there is no need to read the readings one by one, which simplifies the operation and greatly improves the work effect. It is convenient and fast, the measurement is more accurate, and it can better judge whether the steel bar hook 10 meets the construction specification requirements.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A ruler for checking the length of the straight section of a steel bar hook, characterized in that: The ruler body includes a ruler with scales provided on it; the ruler body includes a straight ruler and an arc-shaped disk, one end of the straight ruler is connected to the arc-shaped disk to form the ruler body; the arc-shaped disk is provided with a slide groove, and the slide groove is an inverted "U"-shaped structure; a guide column is slidably connected in the slide groove; a circular chuck is provided above the arc-shaped disk, and the top of the guide column is connected to the center of the circular chuck; the bottom of the guide column is connected to a stopper, and the stopper is located below the arc-shaped disk.

2. A steel bar hook straight section length inspection ruler according to claim 1, characterized in that: The slide groove includes a first positioning section, an intermediate connecting section, and a second positioning section connected in sequence; when the guide post is located in the first positioning section, a partial area of ​​the circular chuck is located outside the area delineated by the contour line where the ruler body is located; when the guide post is located in the second positioning section, the circular chuck is completely located within the area delineated by the contour line where the ruler body is located.

3. A steel bar hook straight section length inspection ruler according to claim 1, characterized in that: The guide column and the circular chuck are glued or welded.

4. A steel bar hook straight section length inspection ruler according to claim 1, characterized in that: It also includes a scale indicating locator; the scale indicating locator includes an "n"-shaped card plate, the card plate has a card cavity, the card plate is carded on the top of the ruler and can slide along the length of the ruler; the card plate surface is threaded with a top screw; the bottom of the card plate is connected to a pointer for pointing to the scale.

5. A steel bar hook straight section length inspection ruler according to claim 4, characterized in that: The bottom end of the pointer is arrow-shaped.

6. A steel bar hook straight section length inspection ruler according to claim 4, characterized in that: One end of the top screw is welded with a butterfly handle.

7. A steel bar hook straight section length inspection ruler according to claim 4, characterized in that: The end of the ruler away from the arc-shaped disk is provided with a hole.

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