A positioning assembly for strain gauge installation

Abstract

The utility model discloses a kind of positioning components for strain gauge installation, it is related to strain gauge technical field.The positioning components for strain gauge installation, comprising: steel ruler, multiple positioning grooves are arranged in the inside of the steel ruler, the left side of the steel ruler is provided with connecting mechanism, the right side upper end of the steel ruler is fixedly connected with barb, the connecting mechanism includes shell, installation groove is arranged in the inside of the shell, the inside rotation of the upper end of the installation groove is connected with fixed clamping plate, the lower end of the fixed clamping plate is fixedly connected with clamping plate barb, the upper end of the fixed clamping plate is fixedly connected with push plate, rotary spring is sleeved on the outside of the fixed clamping plate.The positioning components for strain gauge installation, by steel ruler is sleeved in pipeline outside, make the center line of middle positioning groove and pipeline top axis alignment, after connecting mechanism and barb butt joint fixed, can directly along the edge of positioning groove draw out square frame mark, greatly simplify operation process, improve marking efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of strain gauge technology, specifically a positioning component for strain gauge installation. Background Technology

[0002] A strain gauge is a precision sensor used to measure the strain on the surface of an object. Its core principle is based on the resistance-strain effect. When the elastic sensing element deforms with the object being measured, the geometric dimensions (length and cross-sectional area) of its internal metal resistance wire change, resulting in a corresponding change in its resistance value. This minute resistance change can be converted into a voltage signal and amplified using a Wheatstone bridge or similar measurement circuit, allowing for precise calculation of the strain value. Strain gauges are characterized by their small size, high sensitivity, and fast dynamic response, and are widely used in stress analysis, experimental mechanics research, and structural health monitoring in fields such as machinery, aerospace, and civil engineering. Before installing a strain gauge on a pipeline, the center point of the installation location needs to be marked on the outside of the pipeline. Then, a rectangle (the actual installation area of ​​the strain gauge) is drawn based on the center point. This area is then ground before the strain gauge is installed. This process typically requires using tools such as tape measures and steel rulers to wrap around the pipeline to find the corresponding position, make marks, and then use chalk to mark the ground area, which is quite cumbersome. Therefore, a positioning component for strain gauge installation is designed to solve these problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a positioning component for strain gauge installation, which solves the problem that marking positions requires first measuring and positioning with a tape measure, then marking, and finally drawing out the grinding area, which is cumbersome and troublesome.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a positioning component for strain gauge installation, comprising: a steel ruler, the steel ruler having multiple positioning grooves inside, an anti-slip rubber pad attached to the lower surface of the steel ruler, a connecting mechanism provided on the left side of the steel ruler, and a barb fixedly connected to the upper right end of the steel ruler, the barb being inserted into the connecting mechanism; the connecting mechanism including a housing, the housing having an installation groove inside, a fixing plate rotatably connected to the upper end of the installation groove, a fixing plate barb fixedly connected to the lower end of the fixing plate, a toggle plate fixedly connected to the upper end of the fixing plate, and a rotational spring sleeved on the outer side of the rotatable connection between the fixing plate and the housing.

[0008] Preferably, a limiting protrusion is fixedly connected to the upper left side of the mounting groove, and a slot is provided at the lower left side of the fixing plate, with the left side of the fixing plate placed above the limiting protrusion.

[0009] Preferably, the outer side of the left opening of the outer casing is chamfered.

[0010] Preferably, the thickness of the steel ruler is between one and two millimeters.

[0011] Preferably, the steel ruler has length markings on both the front and back sides of its upper surface.

[0012] Preferably, the outer shell, the fixing plate, and the actuating plate are all made of PA material, the steel ruler is made of spring steel, and the anti-slip rubber pad is made of nitrile rubber.

[0013] Preferably, the steel ruler is entirely arc-shaped and bent downwards.

[0014] (III) Beneficial Effects

[0015] This utility model provides a positioning component for installing strain gauges, which has at least the following advantages compared with the prior art:

[0016] This strain gauge installation positioning component aligns the center line of the intermediate positioning groove with the top axis of the pipe by placing a steel ruler over the outside of the pipe. After connecting the mechanism and fixing it with the barb, a square mark can be directly drawn along the edge of the positioning groove, greatly simplifying the operation process and improving marking efficiency and accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a diagram showing the name of the positioning groove in this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the connecting mechanism 5 after connection.

[0020] Figure 4 This utility model Figure 2 A cross-sectional view;

[0021] Figure 5 This utility model Figure 2 A longitudinal sectional view;

[0022] Figure 6 This utility model Figure 2 Disassembly view.

[0023] In the diagram: 1. Steel ruler; 2. Positioning groove; 3. Anti-slip rubber pad; 4. Connecting mechanism; 5. Barb; 41. Outer shell; 42. Mounting groove; 43. Fixing plate; 44. Plate barb; 45. Actuating plate; 46. Rotary spring; 47. Limiting protrusion. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a positioning component for strain gauge installation, comprising: a steel ruler 1, the steel ruler 1 having multiple positioning grooves 2 inside, an anti-slip rubber pad 3 attached to the lower surface of the steel ruler 1, a connecting mechanism 4 provided on the left side of the steel ruler 1, and a barb 5 fixedly connected to the upper right side of the steel ruler 1, the barb 5 being inserted into the connection mechanism 4, the connecting mechanism 4 including a housing 41, the housing 41 having an installation groove 42 inside, a fixing plate 43 rotatably connected to the upper end of the installation groove 42, a plate barb 44 fixedly connected to the lower end of the fixing plate 43, a toggle plate 45 fixedly connected to the upper end of the fixing plate 43, and a rotational spring 46 sleeved on the outer side of the rotatable connection between the fixing plate 43 and the housing 41.

[0026] In use, the two ends of the steel ruler 1 are connected by the connecting mechanism 4 and the barb 5 to form a ring. This ring is fitted onto the outer wall of the pipe where strain gauges need to be installed. The positions on this ring are determined in a clockwise manner. Four strain gauges need to be installed at the 12 o'clock, 9 o'clock, 6 o'clock, and 3 o'clock positions on the pipe, respectively. The four strain gauges divide the ring into four equal parts. The mark at the 12 o'clock position is located at the center of the upper surface of the pipe. Marks need to be made at these positions on the pipe, and spare marks need to be made at the 10:30 and 1:30 positions. Before marking, select the positioning component of the appropriate length according to the diameter of the pipe to be installed. The middle positioning slot 2 is marked as U, the two spare positioning slots 2 on the left and right sides are marked as R1 and L1, the two outer positioning slots 2 are marked as R2 and L2, and the rightmost positioning slot 2 is marked as B. Place the positioning slot 2 at position U at the top of the pipe, and then wrap the steel ruler 1 around the outside of the pipe. The anti-slip rubber pad 3 can reduce slippage. Insert the barb 5 at the right end of the steel ruler 1 into the inside of the connecting mechanism 4. When the barb 5 is inserted into the mounting slot 42 inside the connecting mechanism 4, it will push the fixing plate 43 upward. The end of the fixing plate 43 rotates along the connection with the outer shell 41, and the barb 5 can be inserted smoothly. When the barb 5 is inserted to the end, the fixing plate 43 returns to its original position under the elastic force of the rotary spring 46, and the clamping hook 44 will engage and lock with the barb 5, so that the steel ruler 1 is fitted on the outside of the pipe. Then, the positions of the square marks can be drawn directly along the inner edge of the positioning groove 2. These square positions are respectively located at the 12 o'clock, 9 o'clock, 6 o'clock, 3 o'clock, 10:30 and 1:30 positions of the pipe. When it needs to be removed, simply push the lever plate 45 backward to pull the right end of the steel ruler 1 out of the connecting mechanism 4.

[0027] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, a limiting protrusion 47 is fixedly connected to the upper left side of the inner side of the mounting groove 42, and a slot is opened at the lower left side of the fixing plate 43. The left side of the fixing plate 43 is placed on the upper side of the limiting protrusion 47.

[0028] Analysis of the above structure shows that when the fixing plate 43 is not pried open, it will be placed on the upper side of the limiting protrusion 47 for easy docking.

[0029] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, a chamfer is provided on the outer side of the left opening of the outer shell 41.

[0030] Analysis of the above structure shows that the chamfer at the opening on the left side of the outer shell 41 can serve as a guide to facilitate docking.

[0031] like Figure 1As shown, this utility model embodiment provides an implementation method in which the thickness of the steel ruler 1 is between one millimeter and two millimeters.

[0032] Analysis of the above structure shows that the thickness of steel ruler 1 is between one and two millimeters, making steel ruler 1 easier to bend.

[0033] like Figure 1 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the upper surface of the steel ruler 1 is provided with length markings on both the front and rear sides.

[0034] Analysis of the above structure shows that the length markings on the front and back sides of the upper surface of steel ruler 1 can serve as auxiliary markings.

[0035] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the outer shell 41, the fixing plate 43, and the toggle plate 45 are all made of PA material, the steel ruler 1 is made of spring steel material, and the anti-slip rubber pad 3 is made of nitrile rubber material.

[0036] Analysis of the above structure shows that the outer shell 41, the fixing plate 43, and the actuating plate 45 are all made of PA material, which has high strength and high wear resistance, reducing wear during use. The steel ruler 1 is made of spring steel, which gives the steel ruler higher flexibility and fatigue resistance. The anti-slip rubber pad 3 is made of nitrile rubber, which plays an anti-slip role and has good wear resistance, reducing wear during use.

[0037] like Figure 1 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the steel ruler 1 is entirely arc-shaped and bent downwards.

[0038] Analysis of the above structure shows that the steel ruler 1 is arc-shaped and bent downwards (it is straight in the figure for easy display of the structure), which can better fit the outside of the pipe and reduce the stress during bending.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning assembly for installing a strain gauge, characterized in that, include: A steel ruler (1) has multiple positioning grooves (2) inside. The lower surface of the steel ruler (1) is fitted with an anti-slip rubber pad (3). A connecting mechanism (4) is provided on the left side of the steel ruler (1). A barb (5) is fixedly connected to the upper right side of the steel ruler (1). The barb (5) is inserted into the connecting mechanism (4). The connecting mechanism (4) includes a housing (41). An installation groove (42) is provided inside the housing (41). A fixing plate (43) is rotatably connected to the upper end of the installation groove (42). A plate barb (44) is fixedly connected to the lower end of the fixing plate (43). A toggle plate (45) is fixedly connected to the upper end of the fixing plate (43). A rotary spring (46) is sleeved on the outside of the rotatable connection between the fixing plate (43) and the housing (41).

2. The positioning assembly for strain gauge installation according to claim 1, characterized in that: The upper left side of the mounting groove (42) is fixedly connected to a limiting protrusion (47), and the lower left side of the fixing plate (43) is provided with a slot. The left side of the fixing plate (43) is placed on the upper end of the limiting protrusion (47).

3. A positioning assembly for strain gauge installation according to claim 1, characterized in that: The outer side of the left opening of the outer shell (41) is chamfered.

4. A positioning assembly for strain gauge installation according to claim 1, characterized in that: The thickness of the steel ruler (1) is between one and two millimeters.

5. A positioning assembly for strain gauge installation according to claim 1, characterized in that: The steel ruler (1) has length markings on both the front and back sides of its upper surface.

6. A positioning assembly for strain gauge installation according to claim 1, characterized in that: The outer shell (41), the fixing plate (43), and the actuating plate (45) are all made of PA material, the steel ruler (1) is made of spring steel, and the anti-slip rubber pad (3) is made of nitrile rubber.

7. A positioning assembly for strain gauge installation according to claim 1, characterized in that: The steel ruler (1) is entirely arc-shaped and bent downwards.

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