Rebar joint test piece deformation measuring scale distance device

Abstract

The utility model discloses a steel bar joint test piece deformation measuring scale distance device which comprises a base, two moving assemblies, two spacing adjusting assemblies and two locking assemblies, the two moving assemblies are oppositely arranged on the base, two fixing shells are connected between the two moving assemblies, and the spacing adjusting assemblies are arranged on the base. The two distance adjusting assemblies are arranged in the two fixing shells correspondingly, sliding holes are formed in the two sides of the bottom faces of the two fixing shells correspondingly, the distance adjusting assemblies penetrate through the two sliding holes to be connected with two arc-shaped clamping blocks, anti-skid pads are arranged on the inner walls of the arc-shaped clamping blocks, the distance adjusting assemblies penetrate through the top walls of the fixing shells to be connected with handles, and gear rings are arranged on the outer walls of the handles. The two locking assemblies are arranged on the two fixing shells correspondingly. Therefore, steel bars made of different materials can be effectively clamped and fixed, the stability of the test piece in the stretching process is ensured, and the accuracy of experimental data is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel bar joint test piece detection especially relates to a steel bar joint test piece deformation measurement scale distance device. BACKGROUND

[0002] In the tensile test of steel bar, the deformation value of steel bar joint test piece needs to be measured to detect whether the performance of steel bar joint meets the relevant standards and requirements, and a scale distance device will be used in the process to measure the deformation elongation of steel bar under stress.

[0003] A steel bar joint test piece deformation measurement scale distance device base is disclosed in Chinese patent (publication number CN212780258U), which includes an upper cross bar and a lower cross bar, each of the middle parts of the upper cross bar and the lower cross bar is provided with two switch type magnetic bases that are mutually docked through magnetic force; it also includes a base bottom plate, which is installed with a guide rail assembly along the vertical direction, the upper cross bar and the lower cross bar are cooperatively installed on the guide rail assembly, and the upper cross bar and the lower cross bar can move up and down along the guide rail assembly; the middle part of the cross bar body of the upper cross bar and the lower cross bar is provided with an adjusting assembly that can adjust the distance between the docking surfaces of the two switch type magnetic bases.

[0004] The above device uses switch type magnetic bases to fix the steel bar, which can provide stable clamping for most ordinary steel bar materials. However, with the development of the construction industry, some new materials such as stainless steel bars are widely used in various projects, and these materials often have weak magnetism or even no magnetism at all, which makes it difficult for the magnetic base to effectively play its role and provide enough clamping force to stabilize the position of the steel bar, thereby possibly affecting the accuracy of experimental data. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0006] To this end, the utility model aims to provide a steel bar joint test piece deformation measurement scale distance device that can effectively clamp and fix steel bars of different materials and ensure the stability of the test piece during the stretching process, thereby improving the accuracy of experimental data.

[0007] The utility model proposes a steel bar joint test piece deformation measurement mark distance device for above -mentioned purpose, including base, two mobile components, two interval adjusting components and two locking components, wherein, two mobile components are opposite and set up on base, two fixed shell are connected between two mobile components, two interval adjusting components are respectively arranged in two fixed shell, both sides of the bottom surface of two fixed shell are equipped with slide hole, interval adjusting component passes through two slide hole and is connected with two arc clamping blocks, the inner wall of arc clamping block is equipped with antiskid pad, interval adjusting component penetrates the top wall of fixed shell and is connected with handle, the outer wall of handle is provided with gear ring, two locking components are respectively arranged on two fixed shell, and respectively with two gear ring abuts, two mobile components all are provided with displacement sensor.

[0008] The steel bar joint test piece deformation measurement mark distance device can effectively clamp and fix steel bars of different materials, ensure the stability of the test piece during stretching, and improve the accuracy of experimental data.

[0009] In addition, the steel bar joint test piece deformation measurement mark distance device according to the application can also have the following additional technical features:

[0010] Specifically, the mobile component includes two supports, a guide rod, and two sliding sleeves, wherein the two supports are respectively arranged on the base, the guide rod is arranged between the two supports, the two sliding sleeves are respectively connected with the guide rod in sliding mode, the two sliding sleeves are respectively connected with the two fixed shells, and the displacement sensor is arranged on the sliding sleeve.

[0011] Specifically, the interval adjusting component includes a bidirectional screw rod, two sliding blocks, a first bevel gear, a second bevel gear, and a rotating shaft, wherein the bidirectional screw rod is rotatably arranged in the fixed shell, the two sliding blocks are respectively threadedly connected with the center of the bidirectional screw rod, the first bevel gear is arranged on the bidirectional screw rod, the second bevel gear is engaged with the first bevel gear, the rotating shaft is connected with the second bevel gear, the rotating shaft is connected with the handle through the fixed shell, and the rotating shaft is rotatably connected with the fixed shell, the two sliding blocks are respectively connected with the corresponding arc clamping blocks through the two slide holes, and the sliding blocks are matched with the slide holes.

[0012] Specifically, the locking component includes a support plate, a limiting rod, a baffle, and a spring, wherein the support plate is arranged on the fixed shell, the limiting rod penetrates the support plate, and the limiting rod is slidably connected with the support plate, the limiting rod abuts with the gear ring, the baffle is connected with the limiting rod, the spring is connected between the support plate and the baffle, and the spring is sleeved on the limiting rod.

[0013] Specifically, a scale is arranged on the fixed shell, and a guide sleeve is arranged on the other fixed shell, and the scale passes through the guide sleeve.

[0014] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0016] Figure 1 It is a top view of the deformation measurement scale device for the steel bar joint test piece of the utility model;

[0017] Figure 2 It is a front view of the protective shell of the deformation measurement scale device for the steel bar joint test piece of the utility model;

[0018] Figure 3 It is Figure 1 It is an enlarged structural schematic view of the A area.

[0019] As shown in the figure: 10, base; 20, moving assembly; 21, support; 22, guide rod; 23, sliding sleeve; 30, fixed shell; 31, sliding hole; 40, spacing adjustment assembly; 41, bidirectional screw rod; 42, sliding block; 43, first bevel gear; 44, second bevel gear; 45, rotating shaft; 50, arc-shaped clamping block; 51, non-slip pad; 60, handle; 61, gear ring; 70, locking assembly; 71, support plate; 72, limiting rod; 73, baffle; 74, spring; 80, displacement sensor; 91, scale; 92, guide sleeve. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0021] The deformation measurement scale device for the steel bar joint test piece of the embodiments of the present application will be described below in conjunction with the drawings.

[0022] As Figures 1-3As shown, the reinforcing joint test piece deformation measurement scale device can include a base 10, two moving assemblies 20, two interval adjusting assemblies 40 and two locking assemblies 70, wherein the two moving assemblies 20 are oppositely arranged on the base 10, two fixed shells 30 are connected between the two moving assemblies 20, and the two interval adjusting assemblies 40 are arranged in the two fixed shells 30 respectively.

[0023] The bottom surfaces of the two fixed shells 30 are each provided with a sliding hole 31, the interval adjusting assembly 40 is connected with two arc-shaped clamping blocks 50 through the two sliding holes 31, the inner wall of the arc-shaped clamping block 50 is provided with an anti-skid pad 51, the interval adjusting assembly 40 is connected with a handle 60 through the top wall of the fixed shell 30, the outer wall of the handle 60 is provided with a gear ring 61, the two locking assemblies 70 are arranged on the two fixed shells 30 respectively and abut against the two gear rings 61 respectively, and the two moving assemblies 20 are each provided with a displacement sensor 80.

[0024] It should be noted that the anti-skid pad 51 is made of rubber soft material, which can adapt to the shape of the reinforcing bar surface, enhance the friction with the reinforcing bar surface, and make the fixing effect better.

[0025] Specifically, the staff first controls the two locking assemblies 70 to release the locking of the two gear rings 61 respectively, then rotates the two handles 60 respectively, drives the interval adjusting assemblies 40 respectively to operate, makes the two arc-shaped clamping blocks 50 away from each other, then places the reinforcing joint test piece on the base 10 and passes through the lower part of the two fixed shells 30 in turn, and reversely rotates the two handles 60, drives the two arc-shaped clamping blocks 50 to approach each other, makes the anti-skid pad 51 adhere to the surface of the reinforcing bar, and effectively fixes the reinforcing bar by mechanical clamping, which is not limited by the material of the reinforcing bar, then controls the two locking assemblies 70 to lock the two gear rings 61, and prevents the handle 60 from being misrotated.

[0026] After fixing, the reinforcing bar is subjected to a tensile test, the reinforcing bar drives the arc-shaped clamping block 50 and the fixed shell 30 to move, and then drives the moving assembly 20 to move, in this process, the displacement sensor 80 can measure the sliding displacement value (elongation) in the moving process of the moving assembly 20 and display on the display screen.

[0027] The reinforcing joint test piece deformation measurement scale device can effectively clamp and fix reinforcing bars of different materials, ensure the stability of the test piece in the tensile process, and thus improve the accuracy of experimental data.

[0028] In an embodiment of the utility model, such as Figure 1As shown, the moving assembly 20 comprises two supports 21, a guide rod 22 and two sliding sleeves 23, wherein the two supports 21 are arranged on the base 10 respectively, the guide rod 22 is arranged between the two supports 21, the two sliding sleeves 23 are slidably connected with the guide rod 22 respectively, the two sliding sleeves 23 are connected with the two fixed shells 30 respectively, and the displacement sensor 80 is arranged on the sliding sleeve 23.

[0029] It can be understood that, when the operator adjusts and moves the two fixed shells 30, the fixed shell 30 can be stably moved in a linear direction through the cooperation of the sliding sleeve 23 and the guide rod 22, and in the test process, when the reinforcing steel bar and the fixed shell 30 move, the sliding sleeve 23 can drive the displacement sensor 80 to move linearly, thereby enhancing the data accuracy.

[0030] In an embodiment of the utility model, as shown in Figure 2 The spacing adjusting assembly 40 comprises a bidirectional screw rod 41, two sliding blocks 42, a first bevel gear 43, a second bevel gear 44 and a rotating shaft 45, wherein the bidirectional screw rod 41 is rotatably arranged in the fixed shell 30, the two sliding blocks 42 are threadedly connected with the center of the bidirectional screw rod 41 on both sides, the first bevel gear 43 is arranged on the bidirectional screw rod 41, the second bevel gear 44 is engaged with the first bevel gear 43, the rotating shaft 45 is connected with the second bevel gear 44, the rotating shaft 45 is connected with the handle 60 through the fixed shell 30, the rotating shaft 45 is rotatably connected with the fixed shell 30 through a bearing, the two sliding blocks 42 are connected with the corresponding arc-shaped clamping blocks 50 through the two sliding holes 31 respectively, and the sliding block 42 is matched with the sliding hole 31.

[0031] It should be noted that, by rotating the handle 60, the operator can drive the rotating shaft 45, the second bevel gear 44 and the first bevel gear 43 to rotate, thereby driving the bidirectional screw rod 41 to rotate, so as to drive the two sliding blocks 42 to move towards each other, thereby driving the two arc-shaped clamping blocks 50 to move away from or close to each other, facilitating clamping of the reinforcing steel bar, and in this process, the sliding hole 31 provides a guiding action on the sliding block 42, so that it moves linearly.

[0032] In an embodiment of the utility model, as shown in Figure 3 The locking assembly 70 comprises a supporting plate 71, a limiting rod 72, a baffle 73 and a spring 74, wherein the supporting plate 71 is arranged on the fixed shell 30, the limiting rod 72 penetrates through the supporting plate 71 and is slidably connected with the supporting plate 71, the limiting rod 72 abuts against the gear ring 61, the baffle 73 is connected with the limiting rod 72, the spring 74 is connected between the supporting plate 71 and the baffle 73, and the spring 74 is sleeved on the limiting rod 72.

[0033] It should be noted that when the handle 60 needs to be rotated, the baffle 73 is pulled to drive the limiting rod 72 to move away from the tooth gaps of the gear ring 61, thereby releasing the locking of the gear ring 61, and then the operator can freely rotate the handle 60; after rotation, the baffle 73 is released, and the limiting rod 72 is driven to move by the elastic force of the spring 74, so that the limiting rod 72 abuts between the tooth gaps of the gear ring 61, thereby locking the gear ring 61 and preventing the handle 60 from rotating.

[0034] In an embodiment of the present application, as shown in Figure 1 The fixed shell 30 is provided with a scale 91, and the other fixed shell 30 is provided with a guide sleeve 92, and the scale 91 passes through the guide sleeve 92.

[0035] It can be understood that the scale 91 can be used to measure the initial distance between the two mark points of the elongation during the steel bar tensile test, and the guide sleeve 92 can provide a guiding effect for the scale 91.

[0036] In summary, the steel bar joint test piece deformation measuring distance device can effectively clamp and fix steel bars of different materials, ensure the stability of the test piece during the tensile process, and improve the accuracy of experimental data.

[0037] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0038] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0039] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and deform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A steel reinforcement joint test specimen deformation measuring gauge device characterized by, The utility model provides a kind of two-axis linkage adjustable spacing device, including base, two moving assemblies, two spacing adjustment assemblies and two locking assemblies, wherein, Two moving assemblies are oppositely arranged on the base. Two fixed shells are connected between the two moving assemblies. Two spacing adjustment assemblies are arranged in the two fixed shells respectively. Two sliding holes are provided on the bottom surface of the two fixed shells, and the spacing adjustment assemblies pass through the two sliding holes and are connected with two arc-shaped clamping blocks, and the inner wall of the arc-shaped clamping block is provided with a non-slip pad. A handle is connected to the top wall of the fixed shell through the spacing adjustment assembly, and the outer wall of the handle is provided with a gear ring. Two locking assemblies are arranged on the two fixed shells respectively and abut against the two gear rings respectively. A displacement sensor is arranged on each of the two moving assemblies.

2. The deformation measuring gauge for a steel reinforced joint test specimen according to claim 1, characterized by, The moving assembly includes two supports, a guide rod and two sliding sleeves. Two supports are arranged on the base respectively, the guide rod is arranged between the two supports, two sliding sleeves are slidably connected with the guide rod respectively, and the displacement sensor is arranged on the sliding sleeve.

3. The deformation measuring gauge for a reinforced joint test specimen according to claim 1, characterized by The spacing adjustment assembly includes a bidirectional screw rod, two sliding blocks, a first bevel gear, a second bevel gear and a rotating shaft. The bidirectional screw rod is rotatably arranged in the fixed shell, two sliding blocks are threadedly connected with the center of the bidirectional screw rod on both sides, the first bevel gear is arranged on the bidirectional screw rod, the second bevel gear is engaged with the first bevel gear, and the rotating shaft is connected with the second bevel gear. The rotating shaft passes through the fixed shell and is connected with the handle, and the rotating shaft is rotatably connected with the fixed shell, the two sliding blocks pass through the two sliding holes and are connected with the corresponding arc-shaped clamping blocks respectively, and the sliding block is matched with the sliding hole.

4. The specimen deformation measuring gauge of claim 1, wherein The locking assembly includes a support plate, a limiting rod, a baffle and a spring. The support plate is arranged on the fixed shell, the limiting rod passes through the support plate, and the limiting rod is slidably connected with the support plate, the limiting rod abuts against the gear ring, the baffle is connected with the limiting rod, the spring is connected between the support plate and the baffle, and the spring is sleeved on the limiting rod.

5. The specimen deformation measuring gauge of claim 1, wherein A scale is arranged on the fixed shell, and a guide sleeve is arranged on the other fixed shell, and the scale passes through the guide sleeve.

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